diff options
Diffstat (limited to 'drivers/net/wireless/rsi')
24 files changed, 12258 insertions, 0 deletions
diff --git a/drivers/net/wireless/rsi/Kconfig b/drivers/net/wireless/rsi/Kconfig new file mode 100644 index 0000000..978ee87 --- /dev/null +++ b/drivers/net/wireless/rsi/Kconfig @@ -0,0 +1,62 @@ +# SPDX-License-Identifier: GPL-2.0-only +config WLAN_VENDOR_RSI + bool "Redpine Signals Inc devices" + default y + ---help--- + If you have a wireless card belonging to this class, say Y. + + Note that the answer to this question doesn't directly affect the + kernel: saying N will just cause the configurator to skip all the + questions about these cards. If you say Y, you will be asked for + your specific card in the following questions. + +if WLAN_VENDOR_RSI + +config RSI_91X + tristate "Redpine Signals Inc 91x WLAN driver support" + depends on m + select BT_HCIRSI if RSI_COEX + depends on MAC80211 + ---help--- + This option enabes support for RSI 1x1 devices. + Select M (recommended), if you have a RSI 1x1 wireless module. + +config RSI_DEBUGFS + bool "Redpine Signals Inc debug support" + depends on RSI_91X + default y + ---help--- + Say Y, if you would like to enable debug support. This option + creates debugfs entries + +config RSI_SDIO + depends on !KERNEL_3_13 + tristate "Redpine Signals SDIO bus support" + depends on m + depends on MMC && RSI_91X + default m + ---help--- + This option enables the SDIO bus support in rsi drivers. + Select M (recommended), if you have a RSI 1x1 wireless module. + +config RSI_USB + tristate "Redpine Signals USB bus support" + depends on m + depends on USB && RSI_91X + default m + ---help--- + This option enables the USB bus support in rsi drivers. + Select M (recommended), if you have a RSI 1x1 wireless module. + +config RSI_COEX + depends on !KERNEL_4_17 + bool "Redpine Signals WLAN BT Coexistence support" + depends on BT && RSI_91X + depends on !(BT=m && RSI_91X=y) + default y + ---help--- + This option enables the WLAN BT coex support in rsi drivers. + Select M (recommended), if you have want to use this feature + and you have RS9113 module. + +endif # WLAN_VENDOR_RSI diff --git a/drivers/net/wireless/rsi/Makefile b/drivers/net/wireless/rsi/Makefile new file mode 100644 index 0000000..e25de23 --- /dev/null +++ b/drivers/net/wireless/rsi/Makefile @@ -0,0 +1,15 @@ +# SPDX-License-Identifier: GPL-2.0 +rsi_91x-y += rsi_91x_main.o +rsi_91x-y += rsi_91x_core.o +rsi_91x-y += rsi_91x_mac80211.o +rsi_91x-y += rsi_91x_mgmt.o +rsi_91x-y += rsi_91x_hal.o +rsi_91x-y += rsi_91x_ps.o +rsi_91x-$(CPTCFG_RSI_COEX) += rsi_91x_coex.o +rsi_91x-$(CPTCFG_RSI_DEBUGFS) += rsi_91x_debugfs.o + +rsi_usb-y += rsi_91x_usb.o rsi_91x_usb_ops.o +rsi_sdio-y += rsi_91x_sdio.o rsi_91x_sdio_ops.o +obj-$(CPTCFG_RSI_91X) += rsi_91x.o +obj-$(CPTCFG_RSI_SDIO) += rsi_sdio.o +obj-$(CPTCFG_RSI_USB) += rsi_usb.o diff --git a/drivers/net/wireless/rsi/rsi_91x_coex.c b/drivers/net/wireless/rsi/rsi_91x_coex.c new file mode 100644 index 0000000..c8ba148 --- /dev/null +++ b/drivers/net/wireless/rsi/rsi_91x_coex.c @@ -0,0 +1,180 @@ +/** + * Copyright (c) 2018 Redpine Signals Inc. + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include "rsi_main.h" +#include "rsi_coex.h" +#include "rsi_mgmt.h" +#include "rsi_hal.h" + +static enum rsi_coex_queues rsi_coex_determine_coex_q + (struct rsi_coex_ctrl_block *coex_cb) +{ + enum rsi_coex_queues q_num = RSI_COEX_Q_INVALID; + + if (skb_queue_len(&coex_cb->coex_tx_qs[RSI_COEX_Q_COMMON]) > 0) + q_num = RSI_COEX_Q_COMMON; + if (skb_queue_len(&coex_cb->coex_tx_qs[RSI_COEX_Q_BT]) > 0) + q_num = RSI_COEX_Q_BT; + if (skb_queue_len(&coex_cb->coex_tx_qs[RSI_COEX_Q_WLAN]) > 0) + q_num = RSI_COEX_Q_WLAN; + + return q_num; +} + +static void rsi_coex_sched_tx_pkts(struct rsi_coex_ctrl_block *coex_cb) +{ + enum rsi_coex_queues coex_q = RSI_COEX_Q_INVALID; + struct sk_buff *skb; + + do { + coex_q = rsi_coex_determine_coex_q(coex_cb); + rsi_dbg(INFO_ZONE, "queue = %d\n", coex_q); + + if (coex_q == RSI_COEX_Q_BT) { + skb = skb_dequeue(&coex_cb->coex_tx_qs[RSI_COEX_Q_BT]); + rsi_send_bt_pkt(coex_cb->priv, skb); + } + } while (coex_q != RSI_COEX_Q_INVALID); +} + +static void rsi_coex_scheduler_thread(struct rsi_common *common) +{ + struct rsi_coex_ctrl_block *coex_cb = + (struct rsi_coex_ctrl_block *)common->coex_cb; + u32 timeout = EVENT_WAIT_FOREVER; + + do { + rsi_wait_event(&coex_cb->coex_tx_thread.event, timeout); + rsi_reset_event(&coex_cb->coex_tx_thread.event); + + rsi_coex_sched_tx_pkts(coex_cb); + } while (atomic_read(&coex_cb->coex_tx_thread.thread_done) == 0); + + complete_and_exit(&coex_cb->coex_tx_thread.completion, 0); +} + +int rsi_coex_recv_pkt(struct rsi_common *common, u8 *msg) +{ + u8 msg_type = msg[RSI_RX_DESC_MSG_TYPE_OFFSET]; + + switch (msg_type) { + case COMMON_CARD_READY_IND: + rsi_dbg(INFO_ZONE, "common card ready received\n"); + common->hibernate_resume = false; + rsi_handle_card_ready(common, msg); + break; + case SLEEP_NOTIFY_IND: + rsi_dbg(INFO_ZONE, "sleep notify received\n"); + rsi_mgmt_pkt_recv(common, msg); + break; + } + + return 0; +} + +static inline int rsi_map_coex_q(u8 hal_queue) +{ + switch (hal_queue) { + case RSI_COEX_Q: + return RSI_COEX_Q_COMMON; + case RSI_WLAN_Q: + return RSI_COEX_Q_WLAN; + case RSI_BT_Q: + return RSI_COEX_Q_BT; + } + return RSI_COEX_Q_INVALID; +} + +int rsi_coex_send_pkt(void *priv, struct sk_buff *skb, u8 hal_queue) +{ + struct rsi_common *common = (struct rsi_common *)priv; + struct rsi_coex_ctrl_block *coex_cb = + (struct rsi_coex_ctrl_block *)common->coex_cb; + struct skb_info *tx_params = NULL; + enum rsi_coex_queues coex_q; + int status; + + coex_q = rsi_map_coex_q(hal_queue); + if (coex_q == RSI_COEX_Q_INVALID) { + rsi_dbg(ERR_ZONE, "Invalid coex queue\n"); + return -EINVAL; + } + if (coex_q != RSI_COEX_Q_COMMON && + coex_q != RSI_COEX_Q_WLAN) { + skb_queue_tail(&coex_cb->coex_tx_qs[coex_q], skb); + rsi_set_event(&coex_cb->coex_tx_thread.event); + return 0; + } + if (common->iface_down) { + tx_params = + (struct skb_info *)&IEEE80211_SKB_CB(skb)->driver_data; + + if (!(tx_params->flags & INTERNAL_MGMT_PKT)) { + rsi_indicate_tx_status(common->priv, skb, -EINVAL); + return 0; + } + } + + /* Send packet to hal */ + if (skb->priority == MGMT_SOFT_Q) + status = rsi_send_mgmt_pkt(common, skb); + else + status = rsi_send_data_pkt(common, skb); + + return status; +} + +int rsi_coex_attach(struct rsi_common *common) +{ + struct rsi_coex_ctrl_block *coex_cb; + int cnt; + + coex_cb = kzalloc(sizeof(*coex_cb), GFP_KERNEL); + if (!coex_cb) + return -ENOMEM; + + common->coex_cb = (void *)coex_cb; + coex_cb->priv = common; + + /* Initialize co-ex queues */ + for (cnt = 0; cnt < NUM_COEX_TX_QUEUES; cnt++) + skb_queue_head_init(&coex_cb->coex_tx_qs[cnt]); + rsi_init_event(&coex_cb->coex_tx_thread.event); + + /* Initialize co-ex thread */ + if (rsi_create_kthread(common, + &coex_cb->coex_tx_thread, + rsi_coex_scheduler_thread, + "Coex-Tx-Thread")) { + rsi_dbg(ERR_ZONE, "%s: Unable to init tx thrd\n", __func__); + return -EINVAL; + } + return 0; +} + +void rsi_coex_detach(struct rsi_common *common) +{ + struct rsi_coex_ctrl_block *coex_cb = + (struct rsi_coex_ctrl_block *)common->coex_cb; + int cnt; + + rsi_kill_thread(&coex_cb->coex_tx_thread); + + for (cnt = 0; cnt < NUM_COEX_TX_QUEUES; cnt++) + skb_queue_purge(&coex_cb->coex_tx_qs[cnt]); + + kfree(coex_cb); +} diff --git a/drivers/net/wireless/rsi/rsi_91x_core.c b/drivers/net/wireless/rsi/rsi_91x_core.c new file mode 100644 index 0000000..ba73eb1 --- /dev/null +++ b/drivers/net/wireless/rsi/rsi_91x_core.c @@ -0,0 +1,497 @@ +/** + * Copyright (c) 2014 Redpine Signals Inc. + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include "rsi_mgmt.h" +#include "rsi_common.h" +#include "rsi_hal.h" +#include "rsi_coex.h" + +/** + * rsi_determine_min_weight_queue() - This function determines the queue with + * the min weight. + * @common: Pointer to the driver private structure. + * + * Return: q_num: Corresponding queue number. + */ +static u8 rsi_determine_min_weight_queue(struct rsi_common *common) +{ + struct wmm_qinfo *tx_qinfo = common->tx_qinfo; + u32 q_len = 0; + u8 ii = 0; + + for (ii = 0; ii < NUM_EDCA_QUEUES; ii++) { + q_len = skb_queue_len(&common->tx_queue[ii]); + if ((tx_qinfo[ii].pkt_contended) && q_len) { + common->min_weight = tx_qinfo[ii].weight; + break; + } + } + return ii; +} + +/** + * rsi_recalculate_weights() - This function recalculates the weights + * corresponding to each queue. + * @common: Pointer to the driver private structure. + * + * Return: recontend_queue bool variable + */ +static bool rsi_recalculate_weights(struct rsi_common *common) +{ + struct wmm_qinfo *tx_qinfo = common->tx_qinfo; + bool recontend_queue = false; + u8 ii = 0; + u32 q_len = 0; + + for (ii = 0; ii < NUM_EDCA_QUEUES; ii++) { + q_len = skb_queue_len(&common->tx_queue[ii]); + /* Check for the need of contention */ + if (q_len) { + if (tx_qinfo[ii].pkt_contended) { + tx_qinfo[ii].weight = + ((tx_qinfo[ii].weight > common->min_weight) ? + tx_qinfo[ii].weight - common->min_weight : 0); + } else { + tx_qinfo[ii].pkt_contended = 1; + tx_qinfo[ii].weight = tx_qinfo[ii].wme_params; + recontend_queue = true; + } + } else { /* No packets so no contention */ + tx_qinfo[ii].weight = 0; + tx_qinfo[ii].pkt_contended = 0; + } + } + + return recontend_queue; +} + +/** + * rsi_get_num_pkts_dequeue() - This function determines the number of + * packets to be dequeued based on the number + * of bytes calculated using txop. + * + * @common: Pointer to the driver private structure. + * @q_num: the queue from which pkts have to be dequeued + * + * Return: pkt_num: Number of pkts to be dequeued. + */ +static u32 rsi_get_num_pkts_dequeue(struct rsi_common *common, u8 q_num) +{ + struct rsi_hw *adapter = common->priv; + struct sk_buff *skb; + u32 pkt_cnt = 0; + s16 txop = common->tx_qinfo[q_num].txop * 32; + __le16 r_txop; + struct ieee80211_rate rate; + struct ieee80211_hdr *wh; + struct ieee80211_vif *vif; + + rate.bitrate = RSI_RATE_MCS0 * 5 * 10; /* Convert to Kbps */ + if (q_num == VI_Q) + txop = ((txop << 5) / 80); + + if (skb_queue_len(&common->tx_queue[q_num])) + skb = skb_peek(&common->tx_queue[q_num]); + else + return 0; + + do { + wh = (struct ieee80211_hdr *)skb->data; + vif = rsi_get_vif(adapter, wh->addr2); + r_txop = ieee80211_generic_frame_duration(adapter->hw, + vif, + common->band, + skb->len, &rate); + txop -= le16_to_cpu(r_txop); + pkt_cnt += 1; + /*checking if pkts are still there*/ + if (skb_queue_len(&common->tx_queue[q_num]) - pkt_cnt) + skb = skb->next; + else + break; + + } while (txop > 0); + + return pkt_cnt; +} + +/** + * rsi_core_determine_hal_queue() - This function determines the queue from + * which packet has to be dequeued. + * @common: Pointer to the driver private structure. + * + * Return: q_num: Corresponding queue number on success. + */ +static u8 rsi_core_determine_hal_queue(struct rsi_common *common) +{ + bool recontend_queue = false; + u32 q_len = 0; + u8 q_num = INVALID_QUEUE; + u8 ii = 0; + + if (skb_queue_len(&common->tx_queue[MGMT_BEACON_Q])) { + q_num = MGMT_BEACON_Q; + return q_num; + } + if (skb_queue_len(&common->tx_queue[MGMT_SOFT_Q])) { + if (!common->mgmt_q_block) + q_num = MGMT_SOFT_Q; + return q_num; + } + + if (common->hw_data_qs_blocked) + return q_num; + + if (common->pkt_cnt != 0) { + --common->pkt_cnt; + return common->selected_qnum; + } + +get_queue_num: + recontend_queue = false; + + q_num = rsi_determine_min_weight_queue(common); + + ii = q_num; + + /* Selecting the queue with least back off */ + for (; ii < NUM_EDCA_QUEUES; ii++) { + q_len = skb_queue_len(&common->tx_queue[ii]); + if (((common->tx_qinfo[ii].pkt_contended) && + (common->tx_qinfo[ii].weight < common->min_weight)) && + q_len) { + common->min_weight = common->tx_qinfo[ii].weight; + q_num = ii; + } + } + + if (q_num < NUM_EDCA_QUEUES) + common->tx_qinfo[q_num].pkt_contended = 0; + + /* Adjust the back off values for all queues again */ + recontend_queue = rsi_recalculate_weights(common); + + q_len = skb_queue_len(&common->tx_queue[q_num]); + if (!q_len) { + /* If any queues are freshly contended and the selected queue + * doesn't have any packets + * then get the queue number again with fresh values + */ + if (recontend_queue) + goto get_queue_num; + + q_num = INVALID_QUEUE; + return q_num; + } + + common->selected_qnum = q_num; + q_len = skb_queue_len(&common->tx_queue[q_num]); + + if (q_num == VO_Q || q_num == VI_Q) { + common->pkt_cnt = rsi_get_num_pkts_dequeue(common, q_num); + common->pkt_cnt -= 1; + } + + return q_num; +} + +/** + * rsi_core_queue_pkt() - This functions enqueues the packet to the queue + * specified by the queue number. + * @common: Pointer to the driver private structure. + * @skb: Pointer to the socket buffer structure. + * + * Return: None. + */ +static void rsi_core_queue_pkt(struct rsi_common *common, + struct sk_buff *skb) +{ + u8 q_num = skb->priority; + if (q_num >= NUM_SOFT_QUEUES) { + rsi_dbg(ERR_ZONE, "%s: Invalid Queue Number: q_num = %d\n", + __func__, q_num); + dev_kfree_skb(skb); + return; + } + + skb_queue_tail(&common->tx_queue[q_num], skb); +} + +/** + * rsi_core_dequeue_pkt() - This functions dequeues the packet from the queue + * specified by the queue number. + * @common: Pointer to the driver private structure. + * @q_num: Queue number. + * + * Return: Pointer to sk_buff structure. + */ +static struct sk_buff *rsi_core_dequeue_pkt(struct rsi_common *common, + u8 q_num) +{ + if (q_num >= NUM_SOFT_QUEUES) { + rsi_dbg(ERR_ZONE, "%s: Invalid Queue Number: q_num = %d\n", + __func__, q_num); + return NULL; + } + + return skb_dequeue(&common->tx_queue[q_num]); +} + +/** + * rsi_core_qos_processor() - This function is used to determine the wmm queue + * based on the backoff procedure. Data packets are + * dequeued from the selected hal queue and sent to + * the below layers. + * @common: Pointer to the driver private structure. + * + * Return: None. + */ +void rsi_core_qos_processor(struct rsi_common *common) +{ + struct rsi_hw *adapter = common->priv; + struct sk_buff *skb; + unsigned long tstamp_1, tstamp_2; + u8 q_num; + int status; + + tstamp_1 = jiffies; + while (1) { + q_num = rsi_core_determine_hal_queue(common); + rsi_dbg(DATA_TX_ZONE, + "%s: Queue number = %d\n", __func__, q_num); + + if (q_num == INVALID_QUEUE) { + rsi_dbg(DATA_TX_ZONE, "%s: No More Pkt\n", __func__); + break; + } + if (common->hibernate_resume) + break; + + mutex_lock(&common->tx_lock); + + status = adapter->check_hw_queue_status(adapter, q_num); + if ((status <= 0)) { + mutex_unlock(&common->tx_lock); + break; + } + + if ((q_num < MGMT_SOFT_Q) && + ((skb_queue_len(&common->tx_queue[q_num])) <= + MIN_DATA_QUEUE_WATER_MARK)) { + if (ieee80211_queue_stopped(adapter->hw, WME_AC(q_num))) + ieee80211_wake_queue(adapter->hw, + WME_AC(q_num)); + } + + skb = rsi_core_dequeue_pkt(common, q_num); + if (skb == NULL) { + rsi_dbg(ERR_ZONE, "skb null\n"); + mutex_unlock(&common->tx_lock); + break; + } + if (q_num == MGMT_BEACON_Q) { + status = rsi_send_pkt_to_bus(common, skb); + dev_kfree_skb(skb); + } else { +#ifdef CPTCFG_RSI_COEX + if (common->coex_mode > 1) { + status = rsi_coex_send_pkt(common, skb, + RSI_WLAN_Q); + } else { +#endif + if (q_num == MGMT_SOFT_Q) + status = rsi_send_mgmt_pkt(common, skb); + else + status = rsi_send_data_pkt(common, skb); +#ifdef CPTCFG_RSI_COEX + } +#endif + } + + if (status) { + mutex_unlock(&common->tx_lock); + break; + } + + common->tx_stats.total_tx_pkt_send[q_num]++; + + tstamp_2 = jiffies; + mutex_unlock(&common->tx_lock); + + if (time_after(tstamp_2, tstamp_1 + (300 * HZ) / 1000)) + schedule(); + } +} + +struct rsi_sta *rsi_find_sta(struct rsi_common *common, u8 *mac_addr) +{ + int i; + + for (i = 0; i < common->max_stations; i++) { + if (!common->stations[i].sta) + continue; + if (!(memcmp(common->stations[i].sta->addr, + mac_addr, ETH_ALEN))) + return &common->stations[i]; + } + return NULL; +} + +struct ieee80211_vif *rsi_get_vif(struct rsi_hw *adapter, u8 *mac) +{ + struct ieee80211_vif *vif; + int i; + + for (i = 0; i < RSI_MAX_VIFS; i++) { + vif = adapter->vifs[i]; + if (!vif) + continue; + if (!memcmp(vif->addr, mac, ETH_ALEN)) + return vif; + } + return NULL; +} + +/** + * rsi_core_xmit() - This function transmits the packets received from mac80211 + * @common: Pointer to the driver private structure. + * @skb: Pointer to the socket buffer structure. + * + * Return: None. + */ +void rsi_core_xmit(struct rsi_common *common, struct sk_buff *skb) +{ + struct rsi_hw *adapter = common->priv; + struct ieee80211_tx_info *info; + struct skb_info *tx_params; + struct ieee80211_hdr *wh = NULL; + struct ieee80211_vif *vif; + u8 q_num, tid = 0; + struct rsi_sta *rsta = NULL; + + if ((!skb) || (!skb->len)) { + rsi_dbg(ERR_ZONE, "%s: Null skb/zero Length packet\n", + __func__); + goto xmit_fail; + } + if (common->fsm_state != FSM_MAC_INIT_DONE) { + rsi_dbg(ERR_ZONE, "%s: FSM state not open\n", __func__); + goto xmit_fail; + } + if (common->wow_flags & RSI_WOW_ENABLED) { + rsi_dbg(ERR_ZONE, + "%s: Blocking Tx_packets when WOWLAN is enabled\n", + __func__); + goto xmit_fail; + } + + info = IEEE80211_SKB_CB(skb); + tx_params = (struct skb_info *)info->driver_data; + wh = (struct ieee80211_hdr *)&skb->data[0]; + tx_params->sta_id = 0; + + vif = rsi_get_vif(adapter, wh->addr2); + if (!vif) + goto xmit_fail; + tx_params->vif = vif; + tx_params->vap_id = ((struct vif_priv *)vif->drv_priv)->vap_id; + if ((ieee80211_is_mgmt(wh->frame_control)) || + (ieee80211_is_ctl(wh->frame_control)) || + (ieee80211_is_qos_nullfunc(wh->frame_control))) { + if (ieee80211_is_assoc_req(wh->frame_control) || + ieee80211_is_reassoc_req(wh->frame_control)) { + struct ieee80211_bss_conf *bss = &vif->bss_conf; + + common->eapol4_confirm = false; + rsi_hal_send_sta_notify_frame(common, + RSI_IFTYPE_STATION, + STA_CONNECTED, bss->bssid, + bss->qos, bss->aid, 0, + vif); + } + + q_num = MGMT_SOFT_Q; + skb->priority = q_num; + + if (rsi_prepare_mgmt_desc(common, skb)) { + rsi_dbg(ERR_ZONE, "Failed to prepare desc\n"); + goto xmit_fail; + } + } else { + if (ieee80211_is_data_qos(wh->frame_control)) { + u8 *qos = ieee80211_get_qos_ctl(wh); + + tid = *qos & IEEE80211_QOS_CTL_TID_MASK; + skb->priority = TID_TO_WME_AC(tid); + } else { + tid = IEEE80211_NONQOS_TID; + skb->priority = BE_Q; + } + + q_num = skb->priority; + tx_params->tid = tid; + + if (((vif->type == NL80211_IFTYPE_AP) || + (vif->type == NL80211_IFTYPE_P2P_GO)) && + (!is_broadcast_ether_addr(wh->addr1)) && + (!is_multicast_ether_addr(wh->addr1))) { + rsta = rsi_find_sta(common, wh->addr1); + if (!rsta) + goto xmit_fail; + tx_params->sta_id = rsta->sta_id; + } else { + tx_params->sta_id = 0; + } + + if (rsta) { + /* Start aggregation if not done for this tid */ + if (!rsta->start_tx_aggr[tid]) { + rsta->start_tx_aggr[tid] = true; + ieee80211_start_tx_ba_session(rsta->sta, + tid, 0); + } + } + if (skb->protocol == cpu_to_be16(ETH_P_PAE)) { + q_num = MGMT_SOFT_Q; + skb->priority = q_num; + } + if (rsi_prepare_data_desc(common, skb)) { + rsi_dbg(ERR_ZONE, "Failed to prepare data desc\n"); + goto xmit_fail; + } + } + + if ((q_num < MGMT_SOFT_Q) && + ((skb_queue_len(&common->tx_queue[q_num]) + 1) >= + DATA_QUEUE_WATER_MARK)) { + rsi_dbg(ERR_ZONE, "%s: sw queue full\n", __func__); + if (!ieee80211_queue_stopped(adapter->hw, WME_AC(q_num))) + ieee80211_stop_queue(adapter->hw, WME_AC(q_num)); + rsi_set_event(&common->tx_thread.event); + goto xmit_fail; + } + + rsi_core_queue_pkt(common, skb); + rsi_dbg(DATA_TX_ZONE, "%s: ===> Scheduling TX thread <===\n", __func__); + rsi_set_event(&common->tx_thread.event); + + return; + +xmit_fail: + rsi_dbg(ERR_ZONE, "%s: Failed to queue packet\n", __func__); + /* Dropping pkt here */ + ieee80211_free_txskb(common->priv->hw, skb); +} diff --git a/drivers/net/wireless/rsi/rsi_91x_debugfs.c b/drivers/net/wireless/rsi/rsi_91x_debugfs.c new file mode 100644 index 0000000..c71b41e --- /dev/null +++ b/drivers/net/wireless/rsi/rsi_91x_debugfs.c @@ -0,0 +1,329 @@ +/** + * Copyright (c) 2014 Redpine Signals Inc. + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include "rsi_debugfs.h" +#include "rsi_sdio.h" + +/** + * rsi_sdio_stats_read() - This function returns the sdio status of the driver. + * @seq: Pointer to the sequence file structure. + * @data: Pointer to the data. + * + * Return: 0 on success, -1 on failure. + */ +static int rsi_sdio_stats_read(struct seq_file *seq, void *data) +{ + struct rsi_common *common = seq->private; + struct rsi_hw *adapter = common->priv; + struct rsi_91x_sdiodev *dev = + (struct rsi_91x_sdiodev *)adapter->rsi_dev; + + seq_printf(seq, "total_sdio_interrupts: %d\n", + dev->rx_info.sdio_int_counter); + seq_printf(seq, "sdio_msdu_pending_intr_count: %d\n", + dev->rx_info.total_sdio_msdu_pending_intr); + seq_printf(seq, "sdio_buff_full_count : %d\n", + dev->rx_info.buf_full_counter); + seq_printf(seq, "sdio_buf_semi_full_count %d\n", + dev->rx_info.buf_semi_full_counter); + seq_printf(seq, "sdio_unknown_intr_count: %d\n", + dev->rx_info.total_sdio_unknown_intr); + /* RX Path Stats */ + seq_printf(seq, "BUFFER FULL STATUS : %d\n", + dev->rx_info.buffer_full); + seq_printf(seq, "SEMI BUFFER FULL STATUS : %d\n", + dev->rx_info.semi_buffer_full); + seq_printf(seq, "MGMT BUFFER FULL STATUS : %d\n", + dev->rx_info.mgmt_buffer_full); + seq_printf(seq, "BUFFER FULL COUNTER : %d\n", + dev->rx_info.buf_full_counter); + seq_printf(seq, "BUFFER SEMI FULL COUNTER : %d\n", + dev->rx_info.buf_semi_full_counter); + seq_printf(seq, "MGMT BUFFER FULL COUNTER : %d\n", + dev->rx_info.mgmt_buf_full_counter); + + return 0; +} + +/** + * rsi_sdio_stats_open() - This function calls single open function of seq_file + * to open file and read contents from it. + * @inode: Pointer to the inode structure. + * @file: Pointer to the file structure. + * + * Return: Pointer to the opened file status: 0 on success, ENOMEM on failure. + */ +static int rsi_sdio_stats_open(struct inode *inode, + struct file *file) +{ + return single_open(file, rsi_sdio_stats_read, inode->i_private); +} + +/** + * rsi_version_read() - This function gives driver and firmware version number. + * @seq: Pointer to the sequence file structure. + * @data: Pointer to the data. + * + * Return: 0 on success, -1 on failure. + */ +static int rsi_version_read(struct seq_file *seq, void *data) +{ + struct rsi_common *common = seq->private; + + seq_printf(seq, "LMAC : %d.%d.%d.%d\n", + common->lmac_ver.major, + common->lmac_ver.minor, + common->lmac_ver.release_num, + common->lmac_ver.patch_num); + + return 0; +} + +/** + * rsi_version_open() - This function calls single open function of seq_file to + * open file and read contents from it. + * @inode: Pointer to the inode structure. + * @file: Pointer to the file structure. + * + * Return: Pointer to the opened file status: 0 on success, ENOMEM on failure. + */ +static int rsi_version_open(struct inode *inode, + struct file *file) +{ + return single_open(file, rsi_version_read, inode->i_private); +} + +/** + * rsi_stats_read() - This function return the status of the driver. + * @seq: Pointer to the sequence file structure. + * @data: Pointer to the data. + * + * Return: 0 on success, -1 on failure. + */ +static int rsi_stats_read(struct seq_file *seq, void *data) +{ + struct rsi_common *common = seq->private; + + unsigned char fsm_state[][32] = { + "FSM_FW_NOT_LOADED", + "FSM_CARD_NOT_READY", + "FSM_COMMON_DEV_PARAMS_SENT", + "FSM_BOOT_PARAMS_SENT", + "FSM_EEPROM_READ_MAC_ADDR", + "FSM_EEPROM_READ_RF_TYPE", + "FSM_RESET_MAC_SENT", + "FSM_RADIO_CAPS_SENT", + "FSM_BB_RF_PROG_SENT", + "FSM_MAC_INIT_DONE" + }; + seq_puts(seq, "==> RSI STA DRIVER STATUS <==\n"); + seq_puts(seq, "DRIVER_FSM_STATE: "); + + BUILD_BUG_ON(ARRAY_SIZE(fsm_state) != NUM_FSM_STATES); + + if (common->fsm_state <= FSM_MAC_INIT_DONE) + seq_printf(seq, "%s", fsm_state[common->fsm_state]); + + seq_printf(seq, "(%d)\n\n", common->fsm_state); + + /* Mgmt TX Path Stats */ + seq_printf(seq, "total_mgmt_pkt_send : %d\n", + common->tx_stats.total_tx_pkt_send[MGMT_SOFT_Q]); + seq_printf(seq, "total_mgmt_pkt_queued : %d\n", + skb_queue_len(&common->tx_queue[MGMT_SOFT_Q])); + seq_printf(seq, "total_mgmt_pkt_freed : %d\n", + common->tx_stats.total_tx_pkt_freed[MGMT_SOFT_Q]); + + /* Data TX Path Stats */ + seq_printf(seq, "total_data_vo_pkt_send: %8d\t", + common->tx_stats.total_tx_pkt_send[VO_Q]); + seq_printf(seq, "total_data_vo_pkt_queued: %8d\t", + skb_queue_len(&common->tx_queue[VO_Q])); + seq_printf(seq, "total_vo_pkt_freed: %8d\n", + common->tx_stats.total_tx_pkt_freed[VO_Q]); + seq_printf(seq, "total_data_vi_pkt_send: %8d\t", + common->tx_stats.total_tx_pkt_send[VI_Q]); + seq_printf(seq, "total_data_vi_pkt_queued: %8d\t", + skb_queue_len(&common->tx_queue[VI_Q])); + seq_printf(seq, "total_vi_pkt_freed: %8d\n", + common->tx_stats.total_tx_pkt_freed[VI_Q]); + seq_printf(seq, "total_data_be_pkt_send: %8d\t", + common->tx_stats.total_tx_pkt_send[BE_Q]); + seq_printf(seq, "total_data_be_pkt_queued: %8d\t", + skb_queue_len(&common->tx_queue[BE_Q])); + seq_printf(seq, "total_be_pkt_freed: %8d\n", + common->tx_stats.total_tx_pkt_freed[BE_Q]); + seq_printf(seq, "total_data_bk_pkt_send: %8d\t", + common->tx_stats.total_tx_pkt_send[BK_Q]); + seq_printf(seq, "total_data_bk_pkt_queued: %8d\t", + skb_queue_len(&common->tx_queue[BK_Q])); + seq_printf(seq, "total_bk_pkt_freed: %8d\n", + common->tx_stats.total_tx_pkt_freed[BK_Q]); + + seq_puts(seq, "\n"); + return 0; +} + +/** + * rsi_stats_open() - This function calls single open function of seq_file to + * open file and read contents from it. + * @inode: Pointer to the inode structure. + * @file: Pointer to the file structure. + * + * Return: Pointer to the opened file status: 0 on success, ENOMEM on failure. + */ +static int rsi_stats_open(struct inode *inode, + struct file *file) +{ + return single_open(file, rsi_stats_read, inode->i_private); +} + +/** + * rsi_debug_zone_read() - This function display the currently enabled debug zones. + * @seq: Pointer to the sequence file structure. + * @data: Pointer to the data. + * + * Return: 0 on success, -1 on failure. + */ +static int rsi_debug_zone_read(struct seq_file *seq, void *data) +{ + rsi_dbg(FSM_ZONE, "%x: rsi_enabled zone", rsi_zone_enabled); + seq_printf(seq, "The zones available are %#x\n", + rsi_zone_enabled); + return 0; +} + +/** + * rsi_debug_read() - This function calls single open function of seq_file to + * open file and read contents from it. + * @inode: Pointer to the inode structure. + * @file: Pointer to the file structure. + * + * Return: Pointer to the opened file status: 0 on success, ENOMEM on failure. + */ +static int rsi_debug_read(struct inode *inode, + struct file *file) +{ + return single_open(file, rsi_debug_zone_read, inode->i_private); +} + +/** + * rsi_debug_zone_write() - This function writes into hal queues as per user + * requirement. + * @filp: Pointer to the file structure. + * @buff: Pointer to the character buffer. + * @len: Length of the data to be written into buffer. + * @data: Pointer to the data. + * + * Return: len: Number of bytes read. + */ +static ssize_t rsi_debug_zone_write(struct file *filp, + const char __user *buff, + size_t len, + loff_t *data) +{ + unsigned long dbg_zone; + int ret; + + if (!len) + return 0; + + ret = kstrtoul_from_user(buff, len, 16, &dbg_zone); + + if (ret) + return ret; + + rsi_zone_enabled = dbg_zone; + return len; +} + +#define FOPS(fopen) { \ + .owner = THIS_MODULE, \ + .open = (fopen), \ + .read = seq_read, \ + .llseek = seq_lseek, \ +} + +#define FOPS_RW(fopen, fwrite) { \ + .owner = THIS_MODULE, \ + .open = (fopen), \ + .read = seq_read, \ + .llseek = seq_lseek, \ + .write = (fwrite), \ +} + +static const struct rsi_dbg_files dev_debugfs_files[] = { + {"version", 0644, FOPS(rsi_version_open),}, + {"stats", 0644, FOPS(rsi_stats_open),}, + {"debug_zone", 0666, FOPS_RW(rsi_debug_read, rsi_debug_zone_write),}, + {"sdio_stats", 0644, FOPS(rsi_sdio_stats_open),}, +}; + +/** + * rsi_init_dbgfs() - This function initializes the dbgfs entry. + * @adapter: Pointer to the adapter structure. + * + * Return: 0 on success, -1 on failure. + */ +int rsi_init_dbgfs(struct rsi_hw *adapter) +{ + struct rsi_common *common = adapter->priv; + struct rsi_debugfs *dev_dbgfs; + char devdir[6]; + int ii; + const struct rsi_dbg_files *files; + + dev_dbgfs = kzalloc(sizeof(*dev_dbgfs), GFP_KERNEL); + if (!dev_dbgfs) + return -ENOMEM; + + adapter->dfsentry = dev_dbgfs; + + snprintf(devdir, sizeof(devdir), "%s", + wiphy_name(adapter->hw->wiphy)); + + dev_dbgfs->subdir = debugfs_create_dir(devdir, NULL); + + for (ii = 0; ii < adapter->num_debugfs_entries; ii++) { + files = &dev_debugfs_files[ii]; + dev_dbgfs->rsi_files[ii] = + debugfs_create_file(files->name, + files->perms, + dev_dbgfs->subdir, + common, + &files->fops); + } + return 0; +} +EXPORT_SYMBOL_GPL(rsi_init_dbgfs); + +/** + * rsi_remove_dbgfs() - Removes the previously created dbgfs file entries + * in the reverse order of creation. + * @adapter: Pointer to the adapter structure. + * + * Return: None. + */ +void rsi_remove_dbgfs(struct rsi_hw *adapter) +{ + struct rsi_debugfs *dev_dbgfs = adapter->dfsentry; + + if (!dev_dbgfs) + return; + + debugfs_remove_recursive(dev_dbgfs->subdir); +} +EXPORT_SYMBOL_GPL(rsi_remove_dbgfs); diff --git a/drivers/net/wireless/rsi/rsi_91x_hal.c b/drivers/net/wireless/rsi/rsi_91x_hal.c new file mode 100644 index 0000000..6f8d5f9 --- /dev/null +++ b/drivers/net/wireless/rsi/rsi_91x_hal.c @@ -0,0 +1,1162 @@ +/** + * Copyright (c) 2014 Redpine Signals Inc. + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include <linux/firmware.h> +#include <net/bluetooth/bluetooth.h> +#include "rsi_mgmt.h" +#include "rsi_hal.h" +#include "rsi_sdio.h" +#include "rsi_common.h" + +/* FLASH Firmware */ +static struct ta_metadata metadata_flash_content[] = { + {"flash_content", 0x00010000}, + {"rsi/rs9113_wlan_qspi.rps", 0x00010000}, + {"rsi/rs9113_wlan_bt_dual_mode.rps", 0x00010000}, + {"flash_content", 0x00010000}, + {"rsi/rs9113_ap_bt_dual_mode.rps", 0x00010000}, + +}; + +static struct ta_metadata metadata[] = {{"pmemdata_dummy", 0x00000000}, + {"rsi/rs9116_wlan.rps", 0x00000000}, + {"rsi/rs9116_wlan_bt_classic.rps", 0x00000000}, + {"rsi/pmemdata_dummy", 0x00000000}, + {"rsi/rs9116_wlan_bt_classic.rps", 0x00000000} +}; + +int rsi_send_pkt_to_bus(struct rsi_common *common, struct sk_buff *skb) +{ + struct rsi_hw *adapter = common->priv; + int status; + + if (common->coex_mode > 1) + mutex_lock(&common->tx_bus_mutex); + + status = adapter->host_intf_ops->write_pkt(common->priv, + skb->data, skb->len); + + if (common->coex_mode > 1) + mutex_unlock(&common->tx_bus_mutex); + + return status; +} + +int rsi_prepare_mgmt_desc(struct rsi_common *common, struct sk_buff *skb) +{ + struct rsi_hw *adapter = common->priv; + struct ieee80211_hdr *wh = NULL; + struct ieee80211_tx_info *info; + struct ieee80211_conf *conf = &adapter->hw->conf; + struct ieee80211_vif *vif; + struct rsi_mgmt_desc *mgmt_desc; + struct skb_info *tx_params; + struct rsi_xtended_desc *xtend_desc = NULL; + u8 header_size; + u32 dword_align_bytes = 0; + + if (skb->len > MAX_MGMT_PKT_SIZE) { + rsi_dbg(INFO_ZONE, "%s: Dropping mgmt pkt > 512\n", __func__); + return -EINVAL; + } + + info = IEEE80211_SKB_CB(skb); + tx_params = (struct skb_info *)info->driver_data; + vif = tx_params->vif; + + /* Update header size */ + header_size = FRAME_DESC_SZ + sizeof(struct rsi_xtended_desc); + if (header_size > skb_headroom(skb)) { + rsi_dbg(ERR_ZONE, + "%s: Failed to add extended descriptor\n", + __func__); + return -ENOSPC; + } + skb_push(skb, header_size); + dword_align_bytes = ((unsigned long)skb->data & 0x3f); + if (dword_align_bytes > skb_headroom(skb)) { + rsi_dbg(ERR_ZONE, + "%s: Failed to add dword align\n", __func__); + return -ENOSPC; + } + skb_push(skb, dword_align_bytes); + header_size += dword_align_bytes; + + tx_params->internal_hdr_size = header_size; + memset(&skb->data[0], 0, header_size); + wh = (struct ieee80211_hdr *)&skb->data[header_size]; + + mgmt_desc = (struct rsi_mgmt_desc *)skb->data; + xtend_desc = (struct rsi_xtended_desc *)&skb->data[FRAME_DESC_SZ]; + + rsi_set_len_qno(&mgmt_desc->len_qno, (skb->len - FRAME_DESC_SZ), + RSI_WIFI_MGMT_Q); + mgmt_desc->frame_type = TX_DOT11_MGMT; + mgmt_desc->header_len = MIN_802_11_HDR_LEN; + mgmt_desc->xtend_desc_size = header_size - FRAME_DESC_SZ; + + if (ieee80211_is_probe_req(wh->frame_control)) + mgmt_desc->frame_info = cpu_to_le16(RSI_INSERT_SEQ_IN_FW); + mgmt_desc->frame_info |= cpu_to_le16(RATE_INFO_ENABLE); + if (is_broadcast_ether_addr(wh->addr1)) + mgmt_desc->frame_info |= cpu_to_le16(RSI_BROADCAST_PKT); + + mgmt_desc->seq_ctrl = + cpu_to_le16(IEEE80211_SEQ_TO_SN(le16_to_cpu(wh->seq_ctrl))); + if ((common->band == NL80211_BAND_2GHZ) && !common->p2p_enabled) + mgmt_desc->rate_info = cpu_to_le16(RSI_RATE_1); + else + mgmt_desc->rate_info = cpu_to_le16(RSI_RATE_6); + + if (conf_is_ht40(conf)) + mgmt_desc->bbp_info = cpu_to_le16(FULL40M_ENABLE); + + if (ieee80211_is_probe_resp(wh->frame_control)) { + mgmt_desc->misc_flags |= (RSI_ADD_DELTA_TSF_VAP_ID | + RSI_FETCH_RETRY_CNT_FRM_HST); +#define PROBE_RESP_RETRY_CNT 3 + xtend_desc->retry_cnt = PROBE_RESP_RETRY_CNT; + } + + if (((vif->type == NL80211_IFTYPE_AP) || + (vif->type == NL80211_IFTYPE_P2P_GO)) && + (ieee80211_is_action(wh->frame_control))) { + struct rsi_sta *rsta = rsi_find_sta(common, wh->addr1); + + if (rsta) + mgmt_desc->sta_id = tx_params->sta_id; + else + return -EINVAL; + } + mgmt_desc->rate_info |= + cpu_to_le16((tx_params->vap_id << RSI_DESC_VAP_ID_OFST) & + RSI_DESC_VAP_ID_MASK); + + return 0; +} + +/* This function prepares descriptor for given data packet */ +int rsi_prepare_data_desc(struct rsi_common *common, struct sk_buff *skb) +{ + struct rsi_hw *adapter = common->priv; + struct ieee80211_vif *vif; + struct ieee80211_hdr *wh = NULL; + struct ieee80211_tx_info *info; + struct skb_info *tx_params; + struct rsi_data_desc *data_desc; + struct rsi_xtended_desc *xtend_desc; + u8 ieee80211_size = MIN_802_11_HDR_LEN; + u8 header_size; + u8 vap_id = 0; + u8 dword_align_bytes; + u16 seq_num; + + info = IEEE80211_SKB_CB(skb); + vif = info->control.vif; + tx_params = (struct skb_info *)info->driver_data; + + header_size = FRAME_DESC_SZ + sizeof(struct rsi_xtended_desc); + if (header_size > skb_headroom(skb)) { + rsi_dbg(ERR_ZONE, "%s: Unable to send pkt\n", __func__); + return -ENOSPC; + } + skb_push(skb, header_size); + dword_align_bytes = ((unsigned long)skb->data & 0x3f); + if (header_size > skb_headroom(skb)) { + rsi_dbg(ERR_ZONE, "%s: Not enough headroom\n", __func__); + return -ENOSPC; + } + skb_push(skb, dword_align_bytes); + header_size += dword_align_bytes; + + tx_params->internal_hdr_size = header_size; + data_desc = (struct rsi_data_desc *)skb->data; + memset(data_desc, 0, header_size); + + xtend_desc = (struct rsi_xtended_desc *)&skb->data[FRAME_DESC_SZ]; + wh = (struct ieee80211_hdr *)&skb->data[header_size]; + seq_num = IEEE80211_SEQ_TO_SN(le16_to_cpu(wh->seq_ctrl)); + + data_desc->xtend_desc_size = header_size - FRAME_DESC_SZ; + + if (ieee80211_is_data_qos(wh->frame_control)) { + ieee80211_size += 2; + data_desc->mac_flags |= cpu_to_le16(RSI_QOS_ENABLE); + } + + if (((vif->type == NL80211_IFTYPE_STATION) || + (vif->type == NL80211_IFTYPE_P2P_CLIENT)) && + (adapter->ps_state == PS_ENABLED)) + wh->frame_control |= cpu_to_le16(RSI_SET_PS_ENABLE); + + if ((!(info->flags & IEEE80211_TX_INTFL_DONT_ENCRYPT)) && + (common->secinfo.security_enable)) { + if (rsi_is_cipher_wep(common)) + ieee80211_size += 4; + else + ieee80211_size += 8; + data_desc->mac_flags |= cpu_to_le16(RSI_ENCRYPT_PKT); + } + rsi_set_len_qno(&data_desc->len_qno, (skb->len - FRAME_DESC_SZ), + RSI_WIFI_DATA_Q); + data_desc->header_len = ieee80211_size; + + if (common->min_rate != RSI_RATE_AUTO) { + /* Send fixed rate */ + data_desc->frame_info = cpu_to_le16(RATE_INFO_ENABLE); + data_desc->rate_info = cpu_to_le16(common->min_rate); + + if (conf_is_ht40(&common->priv->hw->conf)) + data_desc->bbp_info = cpu_to_le16(FULL40M_ENABLE); + + if ((common->vif_info[0].sgi) && (common->min_rate & 0x100)) { + /* Only MCS rates */ + data_desc->rate_info |= + cpu_to_le16(ENABLE_SHORTGI_RATE); + } + } + + if (skb->protocol == cpu_to_be16(ETH_P_PAE)) { + rsi_dbg(INFO_ZONE, "*** Tx EAPOL ***\n"); + + data_desc->frame_info = cpu_to_le16(RATE_INFO_ENABLE); + if (common->band == NL80211_BAND_5GHZ) + data_desc->rate_info = cpu_to_le16(RSI_RATE_6); + else + data_desc->rate_info = cpu_to_le16(RSI_RATE_1); + data_desc->mac_flags |= cpu_to_le16(RSI_REKEY_PURPOSE); + data_desc->misc_flags |= RSI_FETCH_RETRY_CNT_FRM_HST; +#define EAPOL_RETRY_CNT 15 + xtend_desc->retry_cnt = EAPOL_RETRY_CNT; + + if (common->eapol4_confirm) + skb->priority = VO_Q; + else + rsi_set_len_qno(&data_desc->len_qno, + (skb->len - FRAME_DESC_SZ), + RSI_WIFI_MGMT_Q); + if ((skb->len - header_size) == EAPOL4_PACKET_LEN) { + data_desc->misc_flags |= + RSI_DESC_REQUIRE_CFM_TO_HOST; + xtend_desc->confirm_frame_type = EAPOL4_CONFIRM; + } + } + + data_desc->mac_flags |= cpu_to_le16(seq_num & 0xfff); + data_desc->qid_tid = ((skb->priority & 0xf) | + ((tx_params->tid & 0xf) << 4)); + data_desc->sta_id = tx_params->sta_id; + + if ((is_broadcast_ether_addr(wh->addr1)) || + (is_multicast_ether_addr(wh->addr1))) { + data_desc->frame_info = cpu_to_le16(RATE_INFO_ENABLE); + data_desc->frame_info |= cpu_to_le16(RSI_BROADCAST_PKT); + data_desc->sta_id = vap_id; + + if ((vif->type == NL80211_IFTYPE_AP) || + (vif->type == NL80211_IFTYPE_P2P_GO)) { + if (common->band == NL80211_BAND_5GHZ) + data_desc->rate_info = cpu_to_le16(RSI_RATE_6); + else + data_desc->rate_info = cpu_to_le16(RSI_RATE_1); + } + } + if (((vif->type == NL80211_IFTYPE_AP) || + (vif->type == NL80211_IFTYPE_P2P_GO)) && + (ieee80211_has_moredata(wh->frame_control))) + data_desc->frame_info |= cpu_to_le16(MORE_DATA_PRESENT); + + data_desc->rate_info |= + cpu_to_le16((tx_params->vap_id << RSI_DESC_VAP_ID_OFST) & + RSI_DESC_VAP_ID_MASK); + + return 0; +} + +/* This function sends received data packet from driver to device */ +int rsi_send_data_pkt(struct rsi_common *common, struct sk_buff *skb) +{ + struct rsi_hw *adapter = common->priv; + struct ieee80211_vif *vif; + struct ieee80211_tx_info *info; + struct ieee80211_bss_conf *bss; + int status = -EINVAL; + + if (!skb) + return 0; + if (common->iface_down) + goto err; + + info = IEEE80211_SKB_CB(skb); + if (!info->control.vif) + goto err; + vif = info->control.vif; + bss = &vif->bss_conf; + + if (((vif->type == NL80211_IFTYPE_STATION) || + (vif->type == NL80211_IFTYPE_P2P_CLIENT)) && + (!bss->assoc)) + goto err; + + status = rsi_send_pkt_to_bus(common, skb); + if (status) + rsi_dbg(ERR_ZONE, "%s: Failed to write pkt\n", __func__); + +err: + ++common->tx_stats.total_tx_pkt_freed[skb->priority]; + rsi_indicate_tx_status(adapter, skb, status); + return status; +} + +/** + * rsi_send_mgmt_pkt() - This functions sends the received management packet + * from driver to device. + * @common: Pointer to the driver private structure. + * @skb: Pointer to the socket buffer structure. + * + * Return: status: 0 on success, -1 on failure. + */ +int rsi_send_mgmt_pkt(struct rsi_common *common, + struct sk_buff *skb) +{ + struct rsi_hw *adapter = common->priv; + struct ieee80211_bss_conf *bss; + struct ieee80211_hdr *wh; + struct ieee80211_tx_info *info; + struct skb_info *tx_params; + struct rsi_mgmt_desc *mgmt_desc; + struct rsi_xtended_desc *xtend_desc; + int status = -E2BIG; + u8 header_size; + + info = IEEE80211_SKB_CB(skb); + tx_params = (struct skb_info *)info->driver_data; + header_size = tx_params->internal_hdr_size; + + if (tx_params->flags & INTERNAL_MGMT_PKT) { + status = adapter->host_intf_ops->write_pkt(common->priv, + (u8 *)skb->data, + skb->len); + if (status) { + rsi_dbg(ERR_ZONE, + "%s: Failed to write the packet\n", __func__); + } + dev_kfree_skb(skb); + return status; + } + + bss = &info->control.vif->bss_conf; + wh = (struct ieee80211_hdr *)&skb->data[header_size]; + mgmt_desc = (struct rsi_mgmt_desc *)skb->data; + xtend_desc = (struct rsi_xtended_desc *)&skb->data[FRAME_DESC_SZ]; + + /* Indicate to firmware to give cfm for probe */ + if (ieee80211_is_probe_req(wh->frame_control) && !bss->assoc) { + rsi_dbg(INFO_ZONE, + "%s: blocking mgmt queue\n", __func__); + mgmt_desc->misc_flags = RSI_DESC_REQUIRE_CFM_TO_HOST; + xtend_desc->confirm_frame_type = PROBEREQ_CONFIRM; + common->mgmt_q_block = true; + rsi_dbg(INFO_ZONE, "Mgmt queue blocked\n"); + } + + status = rsi_send_pkt_to_bus(common, skb); + if (status) + rsi_dbg(ERR_ZONE, "%s: Failed to write the packet\n", __func__); + + rsi_indicate_tx_status(common->priv, skb, status); + return status; +} + +int rsi_send_bt_pkt(struct rsi_common *common, struct sk_buff *skb) +{ + int status = -EINVAL; + u8 header_size = 0; + struct rsi_bt_desc *bt_desc; + u8 queueno = ((skb->data[1] >> 4) & 0xf); + + if (queueno == RSI_BT_MGMT_Q) { + status = rsi_send_pkt_to_bus(common, skb); + if (status) + rsi_dbg(ERR_ZONE, "%s: Failed to write bt mgmt pkt\n", + __func__); + goto out; + } + header_size = FRAME_DESC_SZ; + if (header_size > skb_headroom(skb)) { + rsi_dbg(ERR_ZONE, "%s: Not enough headroom\n", __func__); + status = -ENOSPC; + goto out; + } + skb_push(skb, header_size); + memset(skb->data, 0, header_size); + bt_desc = (struct rsi_bt_desc *)skb->data; + + rsi_set_len_qno(&bt_desc->len_qno, (skb->len - FRAME_DESC_SZ), + RSI_BT_DATA_Q); + bt_desc->bt_pkt_type = cpu_to_le16(bt_cb(skb)->pkt_type); + + status = rsi_send_pkt_to_bus(common, skb); + if (status) + rsi_dbg(ERR_ZONE, "%s: Failed to write bt pkt\n", __func__); + +out: + dev_kfree_skb(skb); + return status; +} + +int rsi_prepare_beacon(struct rsi_common *common, struct sk_buff *skb) +{ + struct rsi_hw *adapter = (struct rsi_hw *)common->priv; + struct rsi_data_desc *bcn_frm; + struct ieee80211_hw *hw = common->priv->hw; + struct ieee80211_conf *conf = &hw->conf; + struct ieee80211_vif *vif; + struct sk_buff *mac_bcn; + u8 vap_id = 0, i; + u16 tim_offset = 0; + + for (i = 0; i < RSI_MAX_VIFS; i++) { + vif = adapter->vifs[i]; + if (!vif) + continue; + if ((vif->type == NL80211_IFTYPE_AP) || + (vif->type == NL80211_IFTYPE_P2P_GO)) + break; + } + if (!vif) + return -EINVAL; + mac_bcn = ieee80211_beacon_get_tim(adapter->hw, + vif, + &tim_offset, NULL); + if (!mac_bcn) { + rsi_dbg(ERR_ZONE, "Failed to get beacon from mac80211\n"); + return -EINVAL; + } + + common->beacon_cnt++; + bcn_frm = (struct rsi_data_desc *)skb->data; + rsi_set_len_qno(&bcn_frm->len_qno, mac_bcn->len, RSI_WIFI_DATA_Q); + bcn_frm->header_len = MIN_802_11_HDR_LEN; + bcn_frm->frame_info = cpu_to_le16(RSI_DATA_DESC_MAC_BBP_INFO | + RSI_DATA_DESC_NO_ACK_IND | + RSI_DATA_DESC_BEACON_FRAME | + RSI_DATA_DESC_INSERT_TSF | + RSI_DATA_DESC_INSERT_SEQ_NO | + RATE_INFO_ENABLE); + bcn_frm->rate_info = cpu_to_le16(vap_id << 14); + bcn_frm->qid_tid = BEACON_HW_Q; + + if (conf_is_ht40_plus(conf)) { + bcn_frm->bbp_info = cpu_to_le16(LOWER_20_ENABLE); + bcn_frm->bbp_info |= cpu_to_le16(LOWER_20_ENABLE >> 12); + } else if (conf_is_ht40_minus(conf)) { + bcn_frm->bbp_info = cpu_to_le16(UPPER_20_ENABLE); + bcn_frm->bbp_info |= cpu_to_le16(UPPER_20_ENABLE >> 12); + } + + if (common->band == NL80211_BAND_2GHZ) + bcn_frm->bbp_info |= cpu_to_le16(RSI_RATE_1); + else + bcn_frm->bbp_info |= cpu_to_le16(RSI_RATE_6); + + if (mac_bcn->data[tim_offset + 2] == 0) + bcn_frm->frame_info |= cpu_to_le16(RSI_DATA_DESC_DTIM_BEACON); + + memcpy(&skb->data[FRAME_DESC_SZ], mac_bcn->data, mac_bcn->len); + skb_put(skb, mac_bcn->len + FRAME_DESC_SZ); + + dev_kfree_skb(mac_bcn); + + return 0; +} + +static void bl_cmd_timeout(struct timer_list *t) +{ + struct rsi_hw *adapter = from_timer(adapter, t, bl_cmd_timer); + + adapter->blcmd_timer_expired = true; + del_timer(&adapter->bl_cmd_timer); +} + +static int bl_start_cmd_timer(struct rsi_hw *adapter, u32 timeout) +{ + timer_setup(&adapter->bl_cmd_timer, bl_cmd_timeout, 0); + adapter->bl_cmd_timer.expires = (msecs_to_jiffies(timeout) + jiffies); + + adapter->blcmd_timer_expired = false; + add_timer(&adapter->bl_cmd_timer); + + return 0; +} + +static int bl_stop_cmd_timer(struct rsi_hw *adapter) +{ + adapter->blcmd_timer_expired = false; + if (timer_pending(&adapter->bl_cmd_timer)) + del_timer(&adapter->bl_cmd_timer); + + return 0; +} + +static int bl_write_cmd(struct rsi_hw *adapter, u8 cmd, u8 exp_resp, + u16 *cmd_resp) +{ + struct rsi_host_intf_ops *hif_ops = adapter->host_intf_ops; + u32 regin_val = 0, regout_val = 0; + u32 regin_input = 0; + u8 output = 0; + int status; + + regin_input = (REGIN_INPUT | adapter->priv->coex_mode); + + while (!adapter->blcmd_timer_expired) { + regin_val = 0; + status = hif_ops->master_reg_read(adapter, SWBL_REGIN, + ®in_val, 2); + if (status < 0) { + rsi_dbg(ERR_ZONE, + "%s: Command %0x REGIN reading failed..\n", + __func__, cmd); + return status; + } + mdelay(1); + if ((regin_val >> 12) != REGIN_VALID) + break; + } + if (adapter->blcmd_timer_expired) { + rsi_dbg(ERR_ZONE, + "%s: Command %0x REGIN reading timed out..\n", + __func__, cmd); + return -ETIMEDOUT; + } + + rsi_dbg(INFO_ZONE, + "Issuing write to Regin val:%0x sending cmd:%0x\n", + regin_val, (cmd | regin_input << 8)); + status = hif_ops->master_reg_write(adapter, SWBL_REGIN, + (cmd | regin_input << 8), 2); + if (status < 0) + return status; + mdelay(1); + + if (cmd == LOAD_HOSTED_FW || cmd == JUMP_TO_ZERO_PC) { + /* JUMP_TO_ZERO_PC doesn't expect + * any response. So return from here + */ + return 0; + } + + while (!adapter->blcmd_timer_expired) { + regout_val = 0; + status = hif_ops->master_reg_read(adapter, SWBL_REGOUT, + ®out_val, 2); + if (status < 0) { + rsi_dbg(ERR_ZONE, + "%s: Command %0x REGOUT reading failed..\n", + __func__, cmd); + return status; + } + mdelay(1); + if ((regout_val >> 8) == REGOUT_VALID) + break; + } + if (adapter->blcmd_timer_expired) { + rsi_dbg(ERR_ZONE, + "%s: Command %0x REGOUT reading timed out..\n", + __func__, cmd); + return status; + } + + *cmd_resp = ((u16 *)®out_val)[0] & 0xffff; + + output = ((u8 *)®out_val)[0] & 0xff; + + status = hif_ops->master_reg_write(adapter, SWBL_REGOUT, + (cmd | REGOUT_INVALID << 8), 2); + if (status < 0) { + rsi_dbg(ERR_ZONE, + "%s: Command %0x REGOUT writing failed..\n", + __func__, cmd); + return status; + } + mdelay(1); + + if (output != exp_resp) { + rsi_dbg(ERR_ZONE, + "%s: Recvd resp %x for cmd %0x\n", + __func__, output, cmd); + return -EINVAL; + } + rsi_dbg(INFO_ZONE, + "%s: Recvd Expected resp %x for cmd %0x\n", + __func__, output, cmd); + + return 0; +} + +static int bl_cmd(struct rsi_hw *adapter, u8 cmd, u8 exp_resp, char *str) +{ + u16 regout_val = 0; + u32 timeout; + int status; + + if ((cmd == EOF_REACHED) || (cmd == PING_VALID) || (cmd == PONG_VALID)) + timeout = BL_BURN_TIMEOUT; + else + timeout = BL_CMD_TIMEOUT; + + bl_start_cmd_timer(adapter, timeout); + status = bl_write_cmd(adapter, cmd, exp_resp, ®out_val); + if (status < 0) { + bl_stop_cmd_timer(adapter); + rsi_dbg(ERR_ZONE, + "%s: Command %s (%0x) writing failed..\n", + __func__, str, cmd); + return status; + } + bl_stop_cmd_timer(adapter); + return 0; +} + +#define CHECK_SUM_OFFSET 20 +#define LEN_OFFSET 8 +#define ADDR_OFFSET 16 +static int bl_write_header(struct rsi_hw *adapter, u8 *flash_content, + u32 content_size) +{ + struct rsi_host_intf_ops *hif_ops = adapter->host_intf_ops; + struct bl_header *bl_hdr; + u32 write_addr, write_len; + int status; + + bl_hdr = kzalloc(sizeof(*bl_hdr), GFP_KERNEL); + if (!bl_hdr) + return -ENOMEM; + + bl_hdr->flags = 0; + bl_hdr->image_no = cpu_to_le32(adapter->priv->coex_mode); + bl_hdr->check_sum = + cpu_to_le32(*(u32 *)&flash_content[CHECK_SUM_OFFSET]); + bl_hdr->flash_start_address = + cpu_to_le32(*(u32 *)&flash_content[ADDR_OFFSET]); + bl_hdr->flash_len = cpu_to_le32(*(u32 *)&flash_content[LEN_OFFSET]); + write_len = sizeof(struct bl_header); + + if (adapter->rsi_host_intf == RSI_HOST_INTF_USB) { + write_addr = PING_BUFFER_ADDRESS; + status = hif_ops->write_reg_multiple(adapter, write_addr, + (u8 *)bl_hdr, write_len); + if (status < 0) { + rsi_dbg(ERR_ZONE, + "%s: Failed to load Version/CRC structure\n", + __func__); + goto fail; + } + } else { + write_addr = PING_BUFFER_ADDRESS >> 16; + status = hif_ops->master_access_msword(adapter, write_addr); + if (status < 0) { + rsi_dbg(ERR_ZONE, + "%s: Unable to set ms word to common reg\n", + __func__); + goto fail; + } + write_addr = RSI_SD_REQUEST_MASTER | + (PING_BUFFER_ADDRESS & 0xFFFF); + status = hif_ops->write_reg_multiple(adapter, write_addr, + (u8 *)bl_hdr, write_len); + if (status < 0) { + rsi_dbg(ERR_ZONE, + "%s: Failed to load Version/CRC structure\n", + __func__); + goto fail; + } + } + status = 0; +fail: + kfree(bl_hdr); + return status; +} + +static u32 read_flash_capacity(struct rsi_hw *adapter) +{ + u32 flash_sz = 0; + + if ((adapter->host_intf_ops->master_reg_read(adapter, FLASH_SIZE_ADDR, + &flash_sz, 2)) < 0) { + rsi_dbg(ERR_ZONE, + "%s: Flash size reading failed..\n", + __func__); + return 0; + } + rsi_dbg(INIT_ZONE, "Flash capacity: %d KiloBytes\n", flash_sz); + + return (flash_sz * 1024); /* Return size in kbytes */ +} + +static int ping_pong_write(struct rsi_hw *adapter, u8 cmd, u8 *addr, u32 size) +{ + struct rsi_host_intf_ops *hif_ops = adapter->host_intf_ops; + u32 block_size = adapter->block_size; + u32 cmd_addr; + u16 cmd_resp, cmd_req; + u8 *str; + int status; + + if (cmd == PING_WRITE) { + cmd_addr = PING_BUFFER_ADDRESS; + cmd_resp = PONG_AVAIL; + cmd_req = PING_VALID; + str = "PING_VALID"; + } else { + cmd_addr = PONG_BUFFER_ADDRESS; + cmd_resp = PING_AVAIL; + cmd_req = PONG_VALID; + str = "PONG_VALID"; + } + + status = hif_ops->load_data_master_write(adapter, cmd_addr, size, + block_size, addr); + if (status) { + rsi_dbg(ERR_ZONE, "%s: Unable to write blk at addr %0x\n", + __func__, *addr); + return status; + } + + status = bl_cmd(adapter, cmd_req, cmd_resp, str); + if (status) + return status; + + return 0; +} + +static int auto_fw_upgrade(struct rsi_hw *adapter, u8 *flash_content, + u32 content_size) +{ + u8 cmd; + u32 temp_content_size, num_flash, index; + u32 flash_start_address; + int status; + + if (content_size > MAX_FLASH_FILE_SIZE) { + rsi_dbg(ERR_ZONE, + "%s: Flash Content size is more than 400K %u\n", + __func__, MAX_FLASH_FILE_SIZE); + return -EINVAL; + } + + flash_start_address = *(u32 *)&flash_content[FLASH_START_ADDRESS]; + rsi_dbg(INFO_ZONE, "flash start address: %08x\n", flash_start_address); + + if (flash_start_address < FW_IMAGE_MIN_ADDRESS) { + rsi_dbg(ERR_ZONE, + "%s: Fw image Flash Start Address is less than 64K\n", + __func__); + return -EINVAL; + } + + if (flash_start_address % FLASH_SECTOR_SIZE) { + rsi_dbg(ERR_ZONE, + "%s: Flash Start Address is not multiple of 4K\n", + __func__); + return -EINVAL; + } + + if ((flash_start_address + content_size) > adapter->flash_capacity) { + rsi_dbg(ERR_ZONE, + "%s: Flash Content will cross max flash size\n", + __func__); + return -EINVAL; + } + + temp_content_size = content_size; + num_flash = content_size / FLASH_WRITE_CHUNK_SIZE; + + rsi_dbg(INFO_ZONE, "content_size: %d, num_flash: %d\n", + content_size, num_flash); + + for (index = 0; index <= num_flash; index++) { + rsi_dbg(INFO_ZONE, "flash index: %d\n", index); + if (index != num_flash) { + content_size = FLASH_WRITE_CHUNK_SIZE; + rsi_dbg(INFO_ZONE, "QSPI content_size:%d\n", + content_size); + } else { + content_size = + temp_content_size % FLASH_WRITE_CHUNK_SIZE; + rsi_dbg(INFO_ZONE, + "Writing last sector content_size:%d\n", + content_size); + if (!content_size) { + rsi_dbg(INFO_ZONE, "instruction size zero\n"); + break; + } + } + + if (index % 2) + cmd = PING_WRITE; + else + cmd = PONG_WRITE; + + status = ping_pong_write(adapter, cmd, flash_content, + content_size); + if (status) { + rsi_dbg(ERR_ZONE, "%s: Unable to load %d block\n", + __func__, index); + return status; + } + + rsi_dbg(INFO_ZONE, + "%s: Successfully loaded %d instructions\n", + __func__, index); + flash_content += content_size; + } + + status = bl_cmd(adapter, EOF_REACHED, FW_LOADING_SUCCESSFUL, + "EOF_REACHED"); + if (status) + return status; + + rsi_dbg(INFO_ZONE, "FW loading is done and FW is running..\n"); + return 0; +} + +static int rsi_hal_prepare_fwload(struct rsi_hw *adapter) +{ + struct rsi_host_intf_ops *hif_ops = adapter->host_intf_ops; + u32 regout_val = 0; + int status; + + bl_start_cmd_timer(adapter, BL_CMD_TIMEOUT); + + while (!adapter->blcmd_timer_expired) { + status = hif_ops->master_reg_read(adapter, SWBL_REGOUT, + ®out_val, + RSI_COMMON_REG_SIZE); + if (status < 0) { + bl_stop_cmd_timer(adapter); + rsi_dbg(ERR_ZONE, + "%s: REGOUT read failed\n", __func__); + return status; + } + mdelay(1); + if ((regout_val >> 8) == REGOUT_VALID) + break; + } + if (adapter->blcmd_timer_expired) { + rsi_dbg(ERR_ZONE, "%s: REGOUT read timedout\n", __func__); + rsi_dbg(ERR_ZONE, + "%s: Soft boot loader not present\n", __func__); + return -ETIMEDOUT; + } + bl_stop_cmd_timer(adapter); + + rsi_dbg(INFO_ZONE, "Received Board Version Number: %x\n", + (regout_val & 0xff)); + + status = hif_ops->master_reg_write(adapter, SWBL_REGOUT, + (REGOUT_INVALID | + REGOUT_INVALID << 8), + RSI_COMMON_REG_SIZE); + if (status < 0) + rsi_dbg(ERR_ZONE, "%s: REGOUT writing failed..\n", __func__); + else + rsi_dbg(INFO_ZONE, + "===> Device is ready to load firmware <===\n"); + + return status; +} + +static int rsi_load_9113_firmware(struct rsi_hw *adapter) +{ + struct rsi_common *common = adapter->priv; + const struct firmware *fw_entry = NULL; + u32 content_size; + u16 tmp_regout_val = 0; + struct ta_metadata *metadata_p; + int status; + + status = bl_cmd(adapter, CONFIG_AUTO_READ_MODE, CMD_PASS, + "AUTO_READ_CMD"); + if (status < 0) + return status; + + adapter->flash_capacity = read_flash_capacity(adapter); + if (adapter->flash_capacity <= 0) { + rsi_dbg(ERR_ZONE, + "%s: Unable to read flash size from EEPROM\n", + __func__); + return -EINVAL; + } + + metadata_p = &metadata_flash_content[adapter->priv->coex_mode]; + + rsi_dbg(INIT_ZONE, "%s: Loading file %s\n", __func__, metadata_p->name); + adapter->fw_file_name = metadata_p->name; + + status = request_firmware(&fw_entry, metadata_p->name, adapter->device); + if (status < 0) { + rsi_dbg(ERR_ZONE, "%s: Failed to open file %s\n", + __func__, metadata_p->name); + return status; + } + content_size = fw_entry->size; + rsi_dbg(INFO_ZONE, "FW Length = %d bytes\n", content_size); + + /* Get the firmware version */ + common->lmac_ver.ver.info.fw_ver[0] = + fw_entry->data[LMAC_VER_OFFSET_9113] & 0xFF; + common->lmac_ver.ver.info.fw_ver[1] = + fw_entry->data[LMAC_VER_OFFSET_9113 + 1] & 0xFF; + common->lmac_ver.major = + fw_entry->data[LMAC_VER_OFFSET_9113 + 2] & 0xFF; + common->lmac_ver.release_num = + fw_entry->data[LMAC_VER_OFFSET_9113 + 3] & 0xFF; + common->lmac_ver.minor = + fw_entry->data[LMAC_VER_OFFSET_9113 + 4] & 0xFF; + common->lmac_ver.patch_num = 0; + rsi_print_version(common); + + status = bl_write_header(adapter, (u8 *)fw_entry->data, content_size); + if (status) { + rsi_dbg(ERR_ZONE, + "%s: RPS Image header loading failed\n", + __func__); + goto fail; + } + + bl_start_cmd_timer(adapter, BL_CMD_TIMEOUT); + status = bl_write_cmd(adapter, CHECK_CRC, CMD_PASS, &tmp_regout_val); + if (status) { + bl_stop_cmd_timer(adapter); + rsi_dbg(ERR_ZONE, + "%s: CHECK_CRC Command writing failed..\n", + __func__); + if ((tmp_regout_val & 0xff) == CMD_FAIL) { + rsi_dbg(ERR_ZONE, + "CRC Fail.. Proceeding to Upgrade mode\n"); + goto fw_upgrade; + } + } + bl_stop_cmd_timer(adapter); + + status = bl_cmd(adapter, POLLING_MODE, CMD_PASS, "POLLING_MODE"); + if (status) + goto fail; + +load_image_cmd: + status = bl_cmd(adapter, LOAD_HOSTED_FW, LOADING_INITIATED, + "LOAD_HOSTED_FW"); + if (status) + goto fail; + rsi_dbg(INFO_ZONE, "Load Image command passed..\n"); + goto success; + +fw_upgrade: + status = bl_cmd(adapter, BURN_HOSTED_FW, SEND_RPS_FILE, "FW_UPGRADE"); + if (status) + goto fail; + + rsi_dbg(INFO_ZONE, "Burn Command Pass.. Upgrading the firmware\n"); + + status = auto_fw_upgrade(adapter, (u8 *)fw_entry->data, content_size); + if (status == 0) { + rsi_dbg(ERR_ZONE, "Firmware upgradation Done\n"); + goto load_image_cmd; + } + rsi_dbg(ERR_ZONE, "Firmware upgrade failed\n"); + + status = bl_cmd(adapter, CONFIG_AUTO_READ_MODE, CMD_PASS, + "AUTO_READ_MODE"); + if (status) + goto fail; + +success: + rsi_dbg(ERR_ZONE, "***** Firmware Loading successful *****\n"); + release_firmware(fw_entry); + return 0; + +fail: + rsi_dbg(ERR_ZONE, "##### Firmware loading failed #####\n"); + release_firmware(fw_entry); + return status; +} + +static int rsi_load_9116_firmware(struct rsi_hw *adapter) +{ + struct rsi_common *common = adapter->priv; + struct rsi_host_intf_ops *hif_ops = adapter->host_intf_ops; + const struct firmware *fw_entry; + struct ta_metadata *metadata_p; + u8 *ta_firmware, *fw_p; + struct bootload_ds bootload_ds; + u32 instructions_sz, base_address; + u16 block_size = adapter->block_size; + u32 dest, len; + int status, cnt; + + rsi_dbg(INIT_ZONE, "***** Load 9116 TA Instructions *****\n"); + + if (adapter->rsi_host_intf == RSI_HOST_INTF_USB) { + status = bl_cmd(adapter, POLLING_MODE, CMD_PASS, + "POLLING_MODE"); + if (status < 0) + return status; + } + + status = hif_ops->master_reg_write(adapter, MEM_ACCESS_CTRL_FROM_HOST, + RAM_384K_ACCESS_FROM_TA, + RSI_9116_REG_SIZE); + if (status < 0) { + rsi_dbg(ERR_ZONE, "%s: Unable to access full RAM memory\n", + __func__); + return status; + } + + metadata_p = &metadata[adapter->priv->coex_mode]; + rsi_dbg(INIT_ZONE, "%s: loading file %s\n", __func__, metadata_p->name); + status = request_firmware(&fw_entry, metadata_p->name, adapter->device); + if (status < 0) { + rsi_dbg(ERR_ZONE, "%s: Failed to open file %s\n", + __func__, metadata_p->name); + return status; + } + + ta_firmware = kmemdup(fw_entry->data, fw_entry->size, GFP_KERNEL); + if (!ta_firmware) + goto fail_release_fw; + fw_p = ta_firmware; + instructions_sz = fw_entry->size; + rsi_dbg(INFO_ZONE, "FW Length = %d bytes\n", instructions_sz); + + common->lmac_ver.major = ta_firmware[LMAC_VER_OFFSET_9116]; + common->lmac_ver.minor = ta_firmware[LMAC_VER_OFFSET_9116 + 1]; + common->lmac_ver.release_num = ta_firmware[LMAC_VER_OFFSET_9116 + 2]; + common->lmac_ver.patch_num = ta_firmware[LMAC_VER_OFFSET_9116 + 3]; + common->lmac_ver.ver.info.fw_ver[0] = + ta_firmware[LMAC_VER_OFFSET_9116 + 4]; + + if (instructions_sz % FW_ALIGN_SIZE) + instructions_sz += + (FW_ALIGN_SIZE - (instructions_sz % FW_ALIGN_SIZE)); + rsi_dbg(INFO_ZONE, "instructions_sz : %d\n", instructions_sz); + + if (*(u16 *)fw_p == RSI_9116_FW_MAGIC_WORD) { + memcpy(&bootload_ds, fw_p, sizeof(struct bootload_ds)); + fw_p += le16_to_cpu(bootload_ds.offset); + rsi_dbg(INFO_ZONE, "FW start = %x\n", *(u32 *)fw_p); + + cnt = 0; + do { + rsi_dbg(ERR_ZONE, "%s: Loading chunk %d\n", + __func__, cnt); + + dest = le32_to_cpu(bootload_ds.bl_entry[cnt].dst_addr); + len = le32_to_cpu(bootload_ds.bl_entry[cnt].control) & + RSI_BL_CTRL_LEN_MASK; + rsi_dbg(INFO_ZONE, "length %d destination %x\n", + len, dest); + + status = hif_ops->load_data_master_write(adapter, dest, + len, + block_size, + fw_p); + if (status < 0) { + rsi_dbg(ERR_ZONE, + "Failed to load chunk %d\n", cnt); + break; + } + fw_p += len; + if (le32_to_cpu(bootload_ds.bl_entry[cnt].control) & + RSI_BL_CTRL_LAST_ENTRY) + break; + cnt++; + } while (1); + } else { + base_address = metadata_p->address; + status = hif_ops->load_data_master_write(adapter, + base_address, + instructions_sz, + block_size, + ta_firmware); + } + if (status) { + rsi_dbg(ERR_ZONE, + "%s: Unable to load %s blk\n", + __func__, metadata_p->name); + goto fail_free_fw; + } + + rsi_dbg(INIT_ZONE, "%s: Successfully loaded %s instructions\n", + __func__, metadata_p->name); + + if (adapter->rsi_host_intf == RSI_HOST_INTF_SDIO) { + if (hif_ops->ta_reset(adapter)) + rsi_dbg(ERR_ZONE, "Unable to put ta in reset\n"); + } else { + if (bl_cmd(adapter, JUMP_TO_ZERO_PC, + CMD_PASS, "JUMP_TO_ZERO") < 0) + rsi_dbg(INFO_ZONE, "Jump to zero command failed\n"); + else + rsi_dbg(INFO_ZONE, "Jump to zero command successful\n"); + } + +fail_free_fw: + kfree(ta_firmware); +fail_release_fw: + release_firmware(fw_entry); + + return status; +} + +int rsi_hal_device_init(struct rsi_hw *adapter) +{ + struct rsi_common *common = adapter->priv; + int status; + + switch (adapter->device_model) { + case RSI_DEV_9113: + status = rsi_hal_prepare_fwload(adapter); + if (status < 0) + return status; + if (rsi_load_9113_firmware(adapter)) { + rsi_dbg(ERR_ZONE, + "%s: Failed to load TA instructions\n", + __func__); + return -EINVAL; + } + break; + case RSI_DEV_9116: + status = rsi_hal_prepare_fwload(adapter); + if (status < 0) + return status; + if (rsi_load_9116_firmware(adapter)) { + rsi_dbg(ERR_ZONE, + "%s: Failed to load firmware to 9116 device\n", + __func__); + return -EINVAL; + } + break; + default: + return -EINVAL; + } + common->fsm_state = FSM_CARD_NOT_READY; + + return 0; +} +EXPORT_SYMBOL_GPL(rsi_hal_device_init); + diff --git a/drivers/net/wireless/rsi/rsi_91x_mac80211.c b/drivers/net/wireless/rsi/rsi_91x_mac80211.c new file mode 100644 index 0000000..9b5e6ca --- /dev/null +++ b/drivers/net/wireless/rsi/rsi_91x_mac80211.c @@ -0,0 +1,2118 @@ +/** + * Copyright (c) 2014 Redpine Signals Inc. + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include <linux/etherdevice.h> +#include "rsi_debugfs.h" +#include "rsi_mgmt.h" +#include "rsi_sdio.h" +#include "rsi_common.h" +#include "rsi_ps.h" + +static const struct ieee80211_channel rsi_2ghz_channels[] = { + { .band = NL80211_BAND_2GHZ, .center_freq = 2412, + .hw_value = 1 }, /* Channel 1 */ + { .band = NL80211_BAND_2GHZ, .center_freq = 2417, + .hw_value = 2 }, /* Channel 2 */ + { .band = NL80211_BAND_2GHZ, .center_freq = 2422, + .hw_value = 3 }, /* Channel 3 */ + { .band = NL80211_BAND_2GHZ, .center_freq = 2427, + .hw_value = 4 }, /* Channel 4 */ + { .band = NL80211_BAND_2GHZ, .center_freq = 2432, + .hw_value = 5 }, /* Channel 5 */ + { .band = NL80211_BAND_2GHZ, .center_freq = 2437, + .hw_value = 6 }, /* Channel 6 */ + { .band = NL80211_BAND_2GHZ, .center_freq = 2442, + .hw_value = 7 }, /* Channel 7 */ + { .band = NL80211_BAND_2GHZ, .center_freq = 2447, + .hw_value = 8 }, /* Channel 8 */ + { .band = NL80211_BAND_2GHZ, .center_freq = 2452, + .hw_value = 9 }, /* Channel 9 */ + { .band = NL80211_BAND_2GHZ, .center_freq = 2457, + .hw_value = 10 }, /* Channel 10 */ + { .band = NL80211_BAND_2GHZ, .center_freq = 2462, + .hw_value = 11 }, /* Channel 11 */ + { .band = NL80211_BAND_2GHZ, .center_freq = 2467, + .hw_value = 12 }, /* Channel 12 */ + { .band = NL80211_BAND_2GHZ, .center_freq = 2472, + .hw_value = 13 }, /* Channel 13 */ + { .band = NL80211_BAND_2GHZ, .center_freq = 2484, + .hw_value = 14 }, /* Channel 14 */ +}; + +static const struct ieee80211_channel rsi_5ghz_channels[] = { + { .band = NL80211_BAND_5GHZ, .center_freq = 5180, + .hw_value = 36, }, /* Channel 36 */ + { .band = NL80211_BAND_5GHZ, .center_freq = 5200, + .hw_value = 40, }, /* Channel 40 */ + { .band = NL80211_BAND_5GHZ, .center_freq = 5220, + .hw_value = 44, }, /* Channel 44 */ + { .band = NL80211_BAND_5GHZ, .center_freq = 5240, + .hw_value = 48, }, /* Channel 48 */ + { .band = NL80211_BAND_5GHZ, .center_freq = 5260, + .hw_value = 52, }, /* Channel 52 */ + { .band = NL80211_BAND_5GHZ, .center_freq = 5280, + .hw_value = 56, }, /* Channel 56 */ + { .band = NL80211_BAND_5GHZ, .center_freq = 5300, + .hw_value = 60, }, /* Channel 60 */ + { .band = NL80211_BAND_5GHZ, .center_freq = 5320, + .hw_value = 64, }, /* Channel 64 */ + { .band = NL80211_BAND_5GHZ, .center_freq = 5500, + .hw_value = 100, }, /* Channel 100 */ + { .band = NL80211_BAND_5GHZ, .center_freq = 5520, + .hw_value = 104, }, /* Channel 104 */ + { .band = NL80211_BAND_5GHZ, .center_freq = 5540, + .hw_value = 108, }, /* Channel 108 */ + { .band = NL80211_BAND_5GHZ, .center_freq = 5560, + .hw_value = 112, }, /* Channel 112 */ + { .band = NL80211_BAND_5GHZ, .center_freq = 5580, + .hw_value = 116, }, /* Channel 116 */ + { .band = NL80211_BAND_5GHZ, .center_freq = 5600, + .hw_value = 120, }, /* Channel 120 */ + { .band = NL80211_BAND_5GHZ, .center_freq = 5620, + .hw_value = 124, }, /* Channel 124 */ + { .band = NL80211_BAND_5GHZ, .center_freq = 5640, + .hw_value = 128, }, /* Channel 128 */ + { .band = NL80211_BAND_5GHZ, .center_freq = 5660, + .hw_value = 132, }, /* Channel 132 */ + { .band = NL80211_BAND_5GHZ, .center_freq = 5680, + .hw_value = 136, }, /* Channel 136 */ + { .band = NL80211_BAND_5GHZ, .center_freq = 5700, + .hw_value = 140, }, /* Channel 140 */ + { .band = NL80211_BAND_5GHZ, .center_freq = 5745, + .hw_value = 149, }, /* Channel 149 */ + { .band = NL80211_BAND_5GHZ, .center_freq = 5765, + .hw_value = 153, }, /* Channel 153 */ + { .band = NL80211_BAND_5GHZ, .center_freq = 5785, + .hw_value = 157, }, /* Channel 157 */ + { .band = NL80211_BAND_5GHZ, .center_freq = 5805, + .hw_value = 161, }, /* Channel 161 */ + { .band = NL80211_BAND_5GHZ, .center_freq = 5825, + .hw_value = 165, }, /* Channel 165 */ +}; + +struct ieee80211_rate rsi_rates[12] = { + { .bitrate = STD_RATE_01 * 5, .hw_value = RSI_RATE_1 }, + { .bitrate = STD_RATE_02 * 5, .hw_value = RSI_RATE_2 }, + { .bitrate = STD_RATE_5_5 * 5, .hw_value = RSI_RATE_5_5 }, + { .bitrate = STD_RATE_11 * 5, .hw_value = RSI_RATE_11 }, + { .bitrate = STD_RATE_06 * 5, .hw_value = RSI_RATE_6 }, + { .bitrate = STD_RATE_09 * 5, .hw_value = RSI_RATE_9 }, + { .bitrate = STD_RATE_12 * 5, .hw_value = RSI_RATE_12 }, + { .bitrate = STD_RATE_18 * 5, .hw_value = RSI_RATE_18 }, + { .bitrate = STD_RATE_24 * 5, .hw_value = RSI_RATE_24 }, + { .bitrate = STD_RATE_36 * 5, .hw_value = RSI_RATE_36 }, + { .bitrate = STD_RATE_48 * 5, .hw_value = RSI_RATE_48 }, + { .bitrate = STD_RATE_54 * 5, .hw_value = RSI_RATE_54 }, +}; + +const u16 rsi_mcsrates[8] = { + RSI_RATE_MCS0, RSI_RATE_MCS1, RSI_RATE_MCS2, RSI_RATE_MCS3, + RSI_RATE_MCS4, RSI_RATE_MCS5, RSI_RATE_MCS6, RSI_RATE_MCS7 +}; + +static const u32 rsi_max_ap_stas[16] = { + 32, /* 1 - Wi-Fi alone */ + 0, /* 2 */ + 0, /* 3 */ + 0, /* 4 - BT EDR alone */ + 4, /* 5 - STA + BT EDR */ + 32, /* 6 - AP + BT EDR */ + 0, /* 7 */ + 0, /* 8 - BT LE alone */ + 4, /* 9 - STA + BE LE */ + 0, /* 10 */ + 0, /* 11 */ + 0, /* 12 */ + 1, /* 13 - STA + BT Dual */ + 4, /* 14 - AP + BT Dual */ +}; + +static const struct ieee80211_iface_limit rsi_iface_limits[] = { + { + .max = 1, + .types = BIT(NL80211_IFTYPE_STATION), + }, + { + .max = 1, + .types = BIT(NL80211_IFTYPE_AP) | + BIT(NL80211_IFTYPE_P2P_CLIENT) | + BIT(NL80211_IFTYPE_P2P_GO), + }, + { + .max = 1, + .types = BIT(NL80211_IFTYPE_P2P_DEVICE), + }, +}; + +static const struct ieee80211_iface_combination rsi_iface_combinations[] = { + { + .num_different_channels = 1, + .max_interfaces = 3, + .limits = rsi_iface_limits, + .n_limits = ARRAY_SIZE(rsi_iface_limits), + }, +}; + +/** + * rsi_is_cipher_wep() - This function determines if the cipher is WEP or not. + * @common: Pointer to the driver private structure. + * + * Return: If cipher type is WEP, a value of 1 is returned, else 0. + */ + +bool rsi_is_cipher_wep(struct rsi_common *common) +{ + if (((common->secinfo.gtk_cipher == WLAN_CIPHER_SUITE_WEP104) || + (common->secinfo.gtk_cipher == WLAN_CIPHER_SUITE_WEP40)) && + (!common->secinfo.ptk_cipher)) + return true; + else + return false; +} + +/** + * rsi_register_rates_channels() - This function registers channels and rates. + * @adapter: Pointer to the adapter structure. + * @band: Operating band to be set. + * + * Return: int - 0 on success, negative error on failure. + */ +static int rsi_register_rates_channels(struct rsi_hw *adapter, int band) +{ + struct ieee80211_supported_band *sbands = &adapter->sbands[band]; + void *channels = NULL; + + if (band == NL80211_BAND_2GHZ) { + channels = kmemdup(rsi_2ghz_channels, sizeof(rsi_2ghz_channels), + GFP_KERNEL); + if (!channels) + return -ENOMEM; + sbands->band = NL80211_BAND_2GHZ; + sbands->n_channels = ARRAY_SIZE(rsi_2ghz_channels); + sbands->bitrates = rsi_rates; + sbands->n_bitrates = ARRAY_SIZE(rsi_rates); + } else { + channels = kmemdup(rsi_5ghz_channels, sizeof(rsi_5ghz_channels), + GFP_KERNEL); + if (!channels) + return -ENOMEM; + sbands->band = NL80211_BAND_5GHZ; + sbands->n_channels = ARRAY_SIZE(rsi_5ghz_channels); + sbands->bitrates = &rsi_rates[4]; + sbands->n_bitrates = ARRAY_SIZE(rsi_rates) - 4; + } + + sbands->channels = channels; + + memset(&sbands->ht_cap, 0, sizeof(struct ieee80211_sta_ht_cap)); + sbands->ht_cap.ht_supported = true; + sbands->ht_cap.cap = (IEEE80211_HT_CAP_SUP_WIDTH_20_40 | + IEEE80211_HT_CAP_SGI_20 | + IEEE80211_HT_CAP_SGI_40); + sbands->ht_cap.ampdu_factor = IEEE80211_HT_MAX_AMPDU_16K; + sbands->ht_cap.ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE; + sbands->ht_cap.mcs.rx_mask[0] = 0xff; + sbands->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED; + /* sbands->ht_cap.mcs.rx_highest = 0x82; */ + return 0; +} + +static int rsi_mac80211_hw_scan_start(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, + struct ieee80211_scan_request *hw_req) +{ + struct cfg80211_scan_request *scan_req = &hw_req->req; + struct rsi_hw *adapter = hw->priv; + struct rsi_common *common = adapter->priv; + struct ieee80211_bss_conf *bss = &vif->bss_conf; + + rsi_dbg(INFO_ZONE, "***** Hardware scan start *****\n"); + common->mac_ops_resumed = false; + + if (common->fsm_state != FSM_MAC_INIT_DONE) + return -ENODEV; + + if ((common->wow_flags & RSI_WOW_ENABLED) || + scan_req->n_channels == 0) + return -EINVAL; + + /* Scan already in progress. So return */ + if (common->bgscan_en) + return -EBUSY; + + /* If STA is not connected, return with special value 1, in order + * to start sw_scan in mac80211 + */ + if (!bss->assoc) + return 1; + + mutex_lock(&common->mutex); + common->hwscan = scan_req; + if (!rsi_send_bgscan_params(common, RSI_START_BGSCAN)) { + if (!rsi_send_bgscan_probe_req(common, vif)) { + rsi_dbg(INFO_ZONE, "Background scan started...\n"); + common->bgscan_en = true; + } + } + mutex_unlock(&common->mutex); + + return 0; +} + +static void rsi_mac80211_cancel_hw_scan(struct ieee80211_hw *hw, + struct ieee80211_vif *vif) +{ + struct rsi_hw *adapter = hw->priv; + struct rsi_common *common = adapter->priv; + struct cfg80211_scan_info info; + + rsi_dbg(INFO_ZONE, "***** Hardware scan stop *****\n"); + mutex_lock(&common->mutex); + + if (common->bgscan_en) { + if (!rsi_send_bgscan_params(common, RSI_STOP_BGSCAN)) + common->bgscan_en = false; + info.aborted = false; + ieee80211_scan_completed(adapter->hw, &info); + rsi_dbg(INFO_ZONE, "Back ground scan cancelled\n"); + } + common->hwscan = NULL; + mutex_unlock(&common->mutex); +} + +/** + * rsi_mac80211_detach() - This function is used to de-initialize the + * Mac80211 stack. + * @adapter: Pointer to the adapter structure. + * + * Return: None. + */ +void rsi_mac80211_detach(struct rsi_hw *adapter) +{ + struct ieee80211_hw *hw = adapter->hw; + enum nl80211_band band; + + if (hw) { + ieee80211_stop_queues(hw); + ieee80211_unregister_hw(hw); + ieee80211_free_hw(hw); + adapter->hw = NULL; + } + + for (band = 0; band < NUM_NL80211_BANDS; band++) { + struct ieee80211_supported_band *sband = + &adapter->sbands[band]; + + kfree(sband->channels); + } + +#ifdef CPTCFG_RSI_DEBUGFS + rsi_remove_dbgfs(adapter); + kfree(adapter->dfsentry); +#endif +} +EXPORT_SYMBOL_GPL(rsi_mac80211_detach); + +/** + * rsi_indicate_tx_status() - This function indicates the transmit status. + * @adapter: Pointer to the adapter structure. + * @skb: Pointer to the socket buffer structure. + * @status: Status + * + * Return: None. + */ +void rsi_indicate_tx_status(struct rsi_hw *adapter, + struct sk_buff *skb, + int status) +{ + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); + struct skb_info *tx_params; + + if (!adapter->hw) { + rsi_dbg(ERR_ZONE, "##### No MAC #####\n"); + return; + } + + if (!status) + info->flags |= IEEE80211_TX_STAT_ACK; + + tx_params = (struct skb_info *)info->driver_data; + skb_pull(skb, tx_params->internal_hdr_size); + memset(info->driver_data, 0, IEEE80211_TX_INFO_DRIVER_DATA_SIZE); + + ieee80211_tx_status_irqsafe(adapter->hw, skb); +} + +/** + * rsi_mac80211_tx() - This is the handler that 802.11 module calls for each + * transmitted frame.SKB contains the buffer starting + * from the IEEE 802.11 header. + * @hw: Pointer to the ieee80211_hw structure. + * @control: Pointer to the ieee80211_tx_control structure + * @skb: Pointer to the socket buffer structure. + * + * Return: None + */ +static void rsi_mac80211_tx(struct ieee80211_hw *hw, + struct ieee80211_tx_control *control, + struct sk_buff *skb) +{ + struct rsi_hw *adapter = hw->priv; + struct rsi_common *common = adapter->priv; + struct ieee80211_hdr *wlh = (struct ieee80211_hdr *)skb->data; + + if (ieee80211_is_auth(wlh->frame_control)) + common->mac_ops_resumed = false; + + rsi_core_xmit(common, skb); +} + +/** + * rsi_mac80211_start() - This is first handler that 802.11 module calls, since + * the driver init is complete by then, just + * returns success. + * @hw: Pointer to the ieee80211_hw structure. + * + * Return: 0 as success. + */ +static int rsi_mac80211_start(struct ieee80211_hw *hw) +{ + struct rsi_hw *adapter = hw->priv; + struct rsi_common *common = adapter->priv; + + rsi_dbg(ERR_ZONE, "===> Interface UP <===\n"); + mutex_lock(&common->mutex); + if (common->hibernate_resume) { + common->reinit_hw = true; + adapter->host_intf_ops->reinit_device(adapter); + wait_for_completion(&adapter->priv->wlan_init_completion); + } + common->iface_down = false; + wiphy_rfkill_start_polling(hw->wiphy); + rsi_send_rx_filter_frame(common, 0); + mutex_unlock(&common->mutex); + + return 0; +} + +/** + * rsi_mac80211_stop() - This is the last handler that 802.11 module calls. + * @hw: Pointer to the ieee80211_hw structure. + * + * Return: None. + */ +static void rsi_mac80211_stop(struct ieee80211_hw *hw) +{ + struct rsi_hw *adapter = hw->priv; + struct rsi_common *common = adapter->priv; + + rsi_dbg(ERR_ZONE, "===> Interface DOWN <===\n"); + mutex_lock(&common->mutex); + common->iface_down = true; + wiphy_rfkill_stop_polling(hw->wiphy); + + /* Block all rx frames */ + rsi_send_rx_filter_frame(common, 0xffff); + + mutex_unlock(&common->mutex); +} + +static int rsi_map_intf_mode(enum nl80211_iftype vif_type) +{ + switch (vif_type) { + case NL80211_IFTYPE_STATION: + return RSI_OPMODE_STA; + case NL80211_IFTYPE_AP: + return RSI_OPMODE_AP; + case NL80211_IFTYPE_P2P_DEVICE: + return RSI_OPMODE_P2P_CLIENT; + case NL80211_IFTYPE_P2P_CLIENT: + return RSI_OPMODE_P2P_CLIENT; + case NL80211_IFTYPE_P2P_GO: + return RSI_OPMODE_P2P_GO; + default: + return RSI_OPMODE_UNSUPPORTED; + } +} + +/** + * rsi_mac80211_add_interface() - This function is called when a netdevice + * attached to the hardware is enabled. + * @hw: Pointer to the ieee80211_hw structure. + * @vif: Pointer to the ieee80211_vif structure. + * + * Return: ret: 0 on success, negative error code on failure. + */ +static int rsi_mac80211_add_interface(struct ieee80211_hw *hw, + struct ieee80211_vif *vif) +{ + struct rsi_hw *adapter = hw->priv; + struct rsi_common *common = adapter->priv; + struct vif_priv *vif_info = (struct vif_priv *)vif->drv_priv; + enum opmode intf_mode; + enum vap_status vap_status; + int vap_idx = -1, i; + + vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD; + mutex_lock(&common->mutex); + + intf_mode = rsi_map_intf_mode(vif->type); + if (intf_mode == RSI_OPMODE_UNSUPPORTED) { + rsi_dbg(ERR_ZONE, + "%s: Interface type %d not supported\n", __func__, + vif->type); + mutex_unlock(&common->mutex); + return -EOPNOTSUPP; + } + if ((vif->type == NL80211_IFTYPE_P2P_DEVICE) || + (vif->type == NL80211_IFTYPE_P2P_CLIENT) || + (vif->type == NL80211_IFTYPE_P2P_GO)) + common->p2p_enabled = true; + + /* Get free vap index */ + for (i = 0; i < RSI_MAX_VIFS; i++) { + if (!adapter->vifs[i] || + !memcmp(vif->addr, adapter->vifs[i]->addr, ETH_ALEN)) { + vap_idx = i; + break; + } + } + if (vap_idx < 0) { + rsi_dbg(ERR_ZONE, "Reject: Max VAPs reached\n"); + mutex_unlock(&common->mutex); + return -EOPNOTSUPP; + } + vif_info->vap_id = vap_idx; + adapter->vifs[vap_idx] = vif; + adapter->sc_nvifs++; + vap_status = VAP_ADD; + + if (rsi_set_vap_capabilities(common, intf_mode, vif->addr, + vif_info->vap_id, vap_status)) { + rsi_dbg(ERR_ZONE, "Failed to set VAP capabilities\n"); + mutex_unlock(&common->mutex); + return -EINVAL; + } + + if ((vif->type == NL80211_IFTYPE_AP) || + (vif->type == NL80211_IFTYPE_P2P_GO)) { + rsi_send_rx_filter_frame(common, DISALLOW_BEACONS); + common->min_rate = RSI_RATE_AUTO; + for (i = 0; i < common->max_stations; i++) + common->stations[i].sta = NULL; + } + + mutex_unlock(&common->mutex); + + return 0; +} + +/** + * rsi_mac80211_remove_interface() - This function notifies driver that an + * interface is going down. + * @hw: Pointer to the ieee80211_hw structure. + * @vif: Pointer to the ieee80211_vif structure. + * + * Return: None. + */ +static void rsi_mac80211_remove_interface(struct ieee80211_hw *hw, + struct ieee80211_vif *vif) +{ + struct rsi_hw *adapter = hw->priv; + struct rsi_common *common = adapter->priv; + enum opmode opmode; + int i; + + rsi_dbg(INFO_ZONE, "Remove Interface Called\n"); + + mutex_lock(&common->mutex); + + if (adapter->sc_nvifs <= 0) { + mutex_unlock(&common->mutex); + return; + } + + opmode = rsi_map_intf_mode(vif->type); + if (opmode == RSI_OPMODE_UNSUPPORTED) { + rsi_dbg(ERR_ZONE, "Opmode error : %d\n", opmode); + mutex_unlock(&common->mutex); + return; + } + for (i = 0; i < RSI_MAX_VIFS; i++) { + if (!adapter->vifs[i]) + continue; + if (vif == adapter->vifs[i]) { + rsi_set_vap_capabilities(common, opmode, vif->addr, + i, VAP_DELETE); + adapter->sc_nvifs--; + adapter->vifs[i] = NULL; + } + } + mutex_unlock(&common->mutex); +} + +/** + * rsi_channel_change() - This function is a performs the checks + * required for changing a channel and sets + * the channel accordingly. + * @hw: Pointer to the ieee80211_hw structure. + * + * Return: 0 on success, negative error code on failure. + */ +static int rsi_channel_change(struct ieee80211_hw *hw) +{ + struct rsi_hw *adapter = hw->priv; + struct rsi_common *common = adapter->priv; + int status = -EOPNOTSUPP; + struct ieee80211_channel *curchan = hw->conf.chandef.chan; + u16 channel = curchan->hw_value; + struct ieee80211_vif *vif; + struct ieee80211_bss_conf *bss; + bool assoc = false; + int i; + + rsi_dbg(INFO_ZONE, + "%s: Set channel: %d MHz type: %d channel_no %d\n", + __func__, curchan->center_freq, + curchan->flags, channel); + + for (i = 0; i < RSI_MAX_VIFS; i++) { + vif = adapter->vifs[i]; + if (!vif) + continue; + if (vif->type == NL80211_IFTYPE_STATION) { + bss = &vif->bss_conf; + if (bss->assoc) { + assoc = true; + break; + } + } + } + if (assoc) { + if (!common->hw_data_qs_blocked && + (rsi_get_connected_channel(vif) != channel)) { + rsi_dbg(INFO_ZONE, "blk data q %d\n", channel); + if (!rsi_send_block_unblock_frame(common, true)) + common->hw_data_qs_blocked = true; + } + } + + status = rsi_band_check(common, curchan); + if (!status) + status = rsi_set_channel(adapter->priv, curchan); + + if (assoc) { + if (common->hw_data_qs_blocked && + (rsi_get_connected_channel(vif) == channel)) { + rsi_dbg(INFO_ZONE, "unblk data q %d\n", channel); + if (!rsi_send_block_unblock_frame(common, false)) + common->hw_data_qs_blocked = false; + } + } + + return status; +} + +/** + * rsi_config_power() - This function configures tx power to device + * @hw: Pointer to the ieee80211_hw structure. + * + * Return: 0 on success, negative error code on failure. + */ +static int rsi_config_power(struct ieee80211_hw *hw) +{ + struct rsi_hw *adapter = hw->priv; + struct rsi_common *common = adapter->priv; + struct ieee80211_conf *conf = &hw->conf; + + if (adapter->sc_nvifs <= 0) { + rsi_dbg(ERR_ZONE, "%s: No virtual interface found\n", __func__); + return -EINVAL; + } + + rsi_dbg(INFO_ZONE, + "%s: Set tx power: %d dBM\n", __func__, conf->power_level); + + if (conf->power_level == common->tx_power) + return 0; + + common->tx_power = conf->power_level; + + return rsi_send_radio_params_update(common); +} + +/** + * rsi_mac80211_config() - This function is a handler for configuration + * requests. The stack calls this function to + * change hardware configuration, e.g., channel. + * @hw: Pointer to the ieee80211_hw structure. + * @changed: Changed flags set. + * + * Return: 0 on success, negative error code on failure. + */ +static int rsi_mac80211_config(struct ieee80211_hw *hw, + u32 changed) +{ + struct rsi_hw *adapter = hw->priv; + struct rsi_common *common = adapter->priv; + struct ieee80211_conf *conf = &hw->conf; + int status = -EOPNOTSUPP; + + mutex_lock(&common->mutex); + + if (changed & IEEE80211_CONF_CHANGE_CHANNEL) + status = rsi_channel_change(hw); + + /* tx power */ + if (changed & IEEE80211_CONF_CHANGE_POWER) { + rsi_dbg(INFO_ZONE, "%s: Configuring Power\n", __func__); + status = rsi_config_power(hw); + } + + /* Power save parameters */ + if ((changed & IEEE80211_CONF_CHANGE_PS) && + !common->mac_ops_resumed) { + struct ieee80211_vif *vif, *sta_vif = NULL; + unsigned long flags; + int i, set_ps = 1; + + for (i = 0; i < RSI_MAX_VIFS; i++) { + vif = adapter->vifs[i]; + if (!vif) + continue; + /* Don't go to power save if AP vap exists */ + if ((vif->type == NL80211_IFTYPE_AP) || + (vif->type == NL80211_IFTYPE_P2P_GO)) { + set_ps = 0; + break; + } + if ((vif->type == NL80211_IFTYPE_STATION || + vif->type == NL80211_IFTYPE_P2P_CLIENT) && + (!sta_vif || vif->bss_conf.assoc)) + sta_vif = vif; + } + if (set_ps && sta_vif) { + spin_lock_irqsave(&adapter->ps_lock, flags); + if (conf->flags & IEEE80211_CONF_PS) + rsi_enable_ps(adapter, sta_vif); + else + rsi_disable_ps(adapter, sta_vif); + spin_unlock_irqrestore(&adapter->ps_lock, flags); + } + } + + /* RTS threshold */ + if (changed & WIPHY_PARAM_RTS_THRESHOLD) { + rsi_dbg(INFO_ZONE, "RTS threshold\n"); + if ((common->rts_threshold) <= IEEE80211_MAX_RTS_THRESHOLD) { + rsi_dbg(INFO_ZONE, + "%s: Sending vap updates....\n", __func__); + status = rsi_send_vap_dynamic_update(common); + } + } + mutex_unlock(&common->mutex); + + return status; +} + +/** + * rsi_get_connected_channel() - This function is used to get the current + * connected channel number. + * @adapter: Pointer to the adapter structure. + * + * Return: Current connected AP's channel number is returned. + */ +u16 rsi_get_connected_channel(struct ieee80211_vif *vif) +{ + struct ieee80211_bss_conf *bss; + struct ieee80211_channel *channel; + + if (!vif) + return 0; + + bss = &vif->bss_conf; + channel = bss->chandef.chan; + + if (!channel) + return 0; + + return channel->hw_value; +} + +static void rsi_switch_channel(struct rsi_hw *adapter, + struct ieee80211_vif *vif) +{ + struct rsi_common *common = adapter->priv; + struct ieee80211_channel *channel; + + if (common->iface_down) + return; + if (!vif) + return; + + channel = vif->bss_conf.chandef.chan; + + if (!channel) + return; + + rsi_band_check(common, channel); + rsi_set_channel(common, channel); + rsi_dbg(INFO_ZONE, "Switched to channel - %d\n", channel->hw_value); +} + +/** + * rsi_mac80211_bss_info_changed() - This function is a handler for config + * requests related to BSS parameters that + * may vary during BSS's lifespan. + * @hw: Pointer to the ieee80211_hw structure. + * @vif: Pointer to the ieee80211_vif structure. + * @bss_conf: Pointer to the ieee80211_bss_conf structure. + * @changed: Changed flags set. + * + * Return: None. + */ +static void rsi_mac80211_bss_info_changed(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, + struct ieee80211_bss_conf *bss_conf, + u32 changed) +{ + struct rsi_hw *adapter = hw->priv; + struct rsi_common *common = adapter->priv; + struct ieee80211_bss_conf *bss = &vif->bss_conf; + struct ieee80211_conf *conf = &hw->conf; + u16 rx_filter_word = 0; + + mutex_lock(&common->mutex); + if (changed & BSS_CHANGED_ASSOC) { + rsi_dbg(INFO_ZONE, "%s: Changed Association status: %d\n", + __func__, bss_conf->assoc); + if (bss_conf->assoc) { + /* Send the RX filter frame */ + rx_filter_word = (ALLOW_DATA_ASSOC_PEER | + ALLOW_CTRL_ASSOC_PEER | + ALLOW_MGMT_ASSOC_PEER); + rsi_send_rx_filter_frame(common, rx_filter_word); + } + rsi_inform_bss_status(common, + RSI_OPMODE_STA, + bss_conf->assoc, + bss_conf->bssid, + bss_conf->qos, + bss_conf->aid, + NULL, 0, + bss_conf->assoc_capability, vif); + adapter->ps_info.dtim_interval_duration = bss->dtim_period; + adapter->ps_info.listen_interval = conf->listen_interval; + + /* If U-APSD is updated, send ps parameters to firmware */ + if (bss->assoc) { + if (common->uapsd_bitmap) { + rsi_dbg(INFO_ZONE, "Configuring UAPSD\n"); + rsi_conf_uapsd(adapter, vif); + } + } else { + common->uapsd_bitmap = 0; + } + } + + if (changed & BSS_CHANGED_CQM) { + common->cqm_info.last_cqm_event_rssi = 0; + common->cqm_info.rssi_thold = bss_conf->cqm_rssi_thold; + common->cqm_info.rssi_hyst = bss_conf->cqm_rssi_hyst; + rsi_dbg(INFO_ZONE, "RSSI throld & hysteresis are: %d %d\n", + common->cqm_info.rssi_thold, + common->cqm_info.rssi_hyst); + } + + if ((changed & BSS_CHANGED_BEACON_ENABLED) && + ((vif->type == NL80211_IFTYPE_AP) || + (vif->type == NL80211_IFTYPE_P2P_GO))) { + if (bss->enable_beacon) { + rsi_dbg(INFO_ZONE, "===> BEACON ENABLED <===\n"); + common->beacon_enabled = 1; + } else { + rsi_dbg(INFO_ZONE, "===> BEACON DISABLED <===\n"); + common->beacon_enabled = 0; + } + } + + mutex_unlock(&common->mutex); +} + +/** + * rsi_mac80211_conf_filter() - This function configure the device's RX filter. + * @hw: Pointer to the ieee80211_hw structure. + * @changed: Changed flags set. + * @total_flags: Total initial flags set. + * @multicast: Multicast. + * + * Return: None. + */ +static void rsi_mac80211_conf_filter(struct ieee80211_hw *hw, + u32 changed_flags, + u32 *total_flags, + u64 multicast) +{ + /* Not doing much here as of now */ + *total_flags &= RSI_SUPP_FILTERS; +} + +/** + * rsi_mac80211_conf_tx() - This function configures TX queue parameters + * (EDCF (aifs, cw_min, cw_max), bursting) + * for a hardware TX queue. + * @hw: Pointer to the ieee80211_hw structure + * @vif: Pointer to the ieee80211_vif structure. + * @queue: Queue number. + * @params: Pointer to ieee80211_tx_queue_params structure. + * + * Return: 0 on success, negative error code on failure. + */ +static int rsi_mac80211_conf_tx(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, u16 queue, + const struct ieee80211_tx_queue_params *params) +{ + struct rsi_hw *adapter = hw->priv; + struct rsi_common *common = adapter->priv; + u8 idx = 0; + + if (queue >= IEEE80211_NUM_ACS) + return 0; + + rsi_dbg(INFO_ZONE, + "%s: Conf queue %d, aifs: %d, cwmin: %d cwmax: %d, txop: %d\n", + __func__, queue, params->aifs, + params->cw_min, params->cw_max, params->txop); + + mutex_lock(&common->mutex); + /* Map into the way the f/w expects */ + switch (queue) { + case IEEE80211_AC_VO: + idx = VO_Q; + break; + case IEEE80211_AC_VI: + idx = VI_Q; + break; + case IEEE80211_AC_BE: + idx = BE_Q; + break; + case IEEE80211_AC_BK: + idx = BK_Q; + break; + default: + idx = BE_Q; + break; + } + + memcpy(&common->edca_params[idx], + params, + sizeof(struct ieee80211_tx_queue_params)); + + if (params->uapsd) + common->uapsd_bitmap |= idx; + else + common->uapsd_bitmap &= (~idx); + + mutex_unlock(&common->mutex); + + return 0; +} + +/** + * rsi_hal_key_config() - This function loads the keys into the firmware. + * @hw: Pointer to the ieee80211_hw structure. + * @vif: Pointer to the ieee80211_vif structure. + * @key: Pointer to the ieee80211_key_conf structure. + * + * Return: status: 0 on success, negative error codes on failure. + */ +static int rsi_hal_key_config(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, + struct ieee80211_key_conf *key, + struct ieee80211_sta *sta) +{ + struct rsi_hw *adapter = hw->priv; + struct rsi_sta *rsta = NULL; + int status; + u8 key_type; + s16 sta_id = 0; + + if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) + key_type = RSI_PAIRWISE_KEY; + else + key_type = RSI_GROUP_KEY; + + rsi_dbg(ERR_ZONE, "%s: Cipher 0x%x key_type: %d key_len: %d\n", + __func__, key->cipher, key_type, key->keylen); + + if ((vif->type == NL80211_IFTYPE_AP) || + (vif->type == NL80211_IFTYPE_P2P_GO)) { + if (sta) { + rsta = rsi_find_sta(adapter->priv, sta->addr); + if (rsta) + sta_id = rsta->sta_id; + } + adapter->priv->key = key; + } else { + if ((key->cipher == WLAN_CIPHER_SUITE_WEP104) || + (key->cipher == WLAN_CIPHER_SUITE_WEP40)) { + status = rsi_hal_load_key(adapter->priv, + key->key, + key->keylen, + RSI_PAIRWISE_KEY, + key->keyidx, + key->cipher, + sta_id, + vif); + if (status) + return status; + } + } + + status = rsi_hal_load_key(adapter->priv, + key->key, + key->keylen, + key_type, + key->keyidx, + key->cipher, + sta_id, + vif); + if (status) + return status; + + if (vif->type == NL80211_IFTYPE_STATION && + (key->cipher == WLAN_CIPHER_SUITE_WEP104 || + key->cipher == WLAN_CIPHER_SUITE_WEP40)) { + if (!rsi_send_block_unblock_frame(adapter->priv, false)) + adapter->priv->hw_data_qs_blocked = false; + } + + return 0; +} + +/** + * rsi_mac80211_set_key() - This function sets type of key to be loaded. + * @hw: Pointer to the ieee80211_hw structure. + * @cmd: enum set_key_cmd. + * @vif: Pointer to the ieee80211_vif structure. + * @sta: Pointer to the ieee80211_sta structure. + * @key: Pointer to the ieee80211_key_conf structure. + * + * Return: status: 0 on success, negative error code on failure. + */ +static int rsi_mac80211_set_key(struct ieee80211_hw *hw, + enum set_key_cmd cmd, + struct ieee80211_vif *vif, + struct ieee80211_sta *sta, + struct ieee80211_key_conf *key) +{ + struct rsi_hw *adapter = hw->priv; + struct rsi_common *common = adapter->priv; + struct security_info *secinfo = &common->secinfo; + int status; + + mutex_lock(&common->mutex); + switch (cmd) { + case SET_KEY: + secinfo->security_enable = true; + status = rsi_hal_key_config(hw, vif, key, sta); + if (status) { + mutex_unlock(&common->mutex); + return status; + } + + if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) + secinfo->ptk_cipher = key->cipher; + else + secinfo->gtk_cipher = key->cipher; + + key->hw_key_idx = key->keyidx; + key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; + + rsi_dbg(ERR_ZONE, "%s: RSI set_key\n", __func__); + break; + + case DISABLE_KEY: + if (vif->type == NL80211_IFTYPE_STATION) + secinfo->security_enable = false; + rsi_dbg(ERR_ZONE, "%s: RSI del key\n", __func__); + memset(key, 0, sizeof(struct ieee80211_key_conf)); + status = rsi_hal_key_config(hw, vif, key, sta); + break; + + default: + status = -EOPNOTSUPP; + break; + } + + mutex_unlock(&common->mutex); + return status; +} + +/** + * rsi_mac80211_ampdu_action() - This function selects the AMPDU action for + * the corresponding mlme_action flag and + * informs the f/w regarding this. + * @hw: Pointer to the ieee80211_hw structure. + * @vif: Pointer to the ieee80211_vif structure. + * @params: Pointer to A-MPDU action parameters + * + * Return: status: 0 on success, negative error code on failure. + */ +static int rsi_mac80211_ampdu_action(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, + struct ieee80211_ampdu_params *params) +{ + int status = -EOPNOTSUPP; + struct rsi_hw *adapter = hw->priv; + struct rsi_common *common = adapter->priv; + struct rsi_sta *rsta = NULL; + u16 seq_no = 0, seq_start = 0; + u8 ii = 0; + struct ieee80211_sta *sta = params->sta; + u8 sta_id = 0; + enum ieee80211_ampdu_mlme_action action = params->action; + u16 tid = params->tid; + u16 *ssn = ¶ms->ssn; + u8 buf_size = params->buf_size; + + for (ii = 0; ii < RSI_MAX_VIFS; ii++) { + if (vif == adapter->vifs[ii]) + break; + } + + mutex_lock(&common->mutex); + + if (ssn != NULL) + seq_no = *ssn; + + if ((vif->type == NL80211_IFTYPE_AP) || + (vif->type == NL80211_IFTYPE_P2P_GO)) { + rsta = rsi_find_sta(common, sta->addr); + if (!rsta) { + rsi_dbg(ERR_ZONE, "No station mapped\n"); + status = 0; + goto unlock; + } + sta_id = rsta->sta_id; + } + + rsi_dbg(INFO_ZONE, + "%s: AMPDU action tid=%d ssn=0x%x, buf_size=%d sta_id=%d\n", + __func__, tid, seq_no, buf_size, sta_id); + + switch (action) { + case IEEE80211_AMPDU_RX_START: + status = rsi_send_aggregation_params_frame(common, + tid, + seq_no, + buf_size, + STA_RX_ADDBA_DONE, + sta_id); + break; + + case IEEE80211_AMPDU_RX_STOP: + status = rsi_send_aggregation_params_frame(common, + tid, + 0, + buf_size, + STA_RX_DELBA, + sta_id); + break; + + case IEEE80211_AMPDU_TX_START: + if ((vif->type == NL80211_IFTYPE_STATION) || + (vif->type == NL80211_IFTYPE_P2P_CLIENT)) + common->vif_info[ii].seq_start = seq_no; + else if ((vif->type == NL80211_IFTYPE_AP) || + (vif->type == NL80211_IFTYPE_P2P_GO)) + rsta->seq_start[tid] = seq_no; + ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid); + status = 0; + break; + + case IEEE80211_AMPDU_TX_STOP_CONT: + case IEEE80211_AMPDU_TX_STOP_FLUSH: + case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: + status = rsi_send_aggregation_params_frame(common, + tid, + seq_no, + buf_size, + STA_TX_DELBA, + sta_id); + if (!status) + ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); + break; + + case IEEE80211_AMPDU_TX_OPERATIONAL: + if ((vif->type == NL80211_IFTYPE_STATION) || + (vif->type == NL80211_IFTYPE_P2P_CLIENT)) + seq_start = common->vif_info[ii].seq_start; + else if ((vif->type == NL80211_IFTYPE_AP) || + (vif->type == NL80211_IFTYPE_P2P_GO)) + seq_start = rsta->seq_start[tid]; + status = rsi_send_aggregation_params_frame(common, + tid, + seq_start, + buf_size, + STA_TX_ADDBA_DONE, + sta_id); + break; + + default: + rsi_dbg(ERR_ZONE, "%s: Unknown AMPDU action\n", __func__); + break; + } + +unlock: + mutex_unlock(&common->mutex); + return status; +} + +/** + * rsi_mac80211_set_rts_threshold() - This function sets rts threshold value. + * @hw: Pointer to the ieee80211_hw structure. + * @value: Rts threshold value. + * + * Return: 0 on success. + */ +static int rsi_mac80211_set_rts_threshold(struct ieee80211_hw *hw, + u32 value) +{ + struct rsi_hw *adapter = hw->priv; + struct rsi_common *common = adapter->priv; + + mutex_lock(&common->mutex); + common->rts_threshold = value; + mutex_unlock(&common->mutex); + + return 0; +} + +/** + * rsi_mac80211_set_rate_mask() - This function sets bitrate_mask to be used. + * @hw: Pointer to the ieee80211_hw structure + * @vif: Pointer to the ieee80211_vif structure. + * @mask: Pointer to the cfg80211_bitrate_mask structure. + * + * Return: 0 on success. + */ +static int rsi_mac80211_set_rate_mask(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, + const struct cfg80211_bitrate_mask *mask) +{ + struct rsi_hw *adapter = hw->priv; + struct rsi_common *common = adapter->priv; + enum nl80211_band band = hw->conf.chandef.chan->band; + + mutex_lock(&common->mutex); + common->fixedrate_mask[band] = 0; + + if (mask->control[band].legacy == 0xfff) { + common->fixedrate_mask[band] = + (mask->control[band].ht_mcs[0] << 12); + } else { + common->fixedrate_mask[band] = + mask->control[band].legacy; + } + mutex_unlock(&common->mutex); + + return 0; +} + +/** + * rsi_perform_cqm() - This function performs cqm. + * @common: Pointer to the driver private structure. + * @bssid: pointer to the bssid. + * @rssi: RSSI value. + */ +static void rsi_perform_cqm(struct rsi_common *common, + u8 *bssid, + s8 rssi, + struct ieee80211_vif *vif) +{ + s8 last_event = common->cqm_info.last_cqm_event_rssi; + int thold = common->cqm_info.rssi_thold; + u32 hyst = common->cqm_info.rssi_hyst; + enum nl80211_cqm_rssi_threshold_event event; + + if (rssi < thold && (last_event == 0 || rssi < (last_event - hyst))) + event = NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW; + else if (rssi > thold && + (last_event == 0 || rssi > (last_event + hyst))) + event = NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH; + else + return; + + common->cqm_info.last_cqm_event_rssi = rssi; + rsi_dbg(INFO_ZONE, "CQM: Notifying event: %d\n", event); + ieee80211_cqm_rssi_notify(vif, event, rssi, GFP_KERNEL); + + return; +} + +/** + * rsi_fill_rx_status() - This function fills rx status in + * ieee80211_rx_status structure. + * @hw: Pointer to the ieee80211_hw structure. + * @skb: Pointer to the socket buffer structure. + * @common: Pointer to the driver private structure. + * @rxs: Pointer to the ieee80211_rx_status structure. + * + * Return: None. + */ +static void rsi_fill_rx_status(struct ieee80211_hw *hw, + struct sk_buff *skb, + struct rsi_common *common, + struct ieee80211_rx_status *rxs) +{ + struct rsi_hw *adapter = common->priv; + struct ieee80211_vif *vif; + struct ieee80211_bss_conf *bss = NULL; + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); + struct skb_info *rx_params = (struct skb_info *)info->driver_data; + struct ieee80211_hdr *hdr; + char rssi = rx_params->rssi; + u8 hdrlen = 0; + u8 channel = rx_params->channel; + s32 freq; + int i; + + hdr = ((struct ieee80211_hdr *)(skb->data)); + hdrlen = ieee80211_hdrlen(hdr->frame_control); + + memset(info, 0, sizeof(struct ieee80211_tx_info)); + + rxs->signal = -(rssi); + + rxs->band = common->band; + + freq = ieee80211_channel_to_frequency(channel, rxs->band); + + if (freq) + rxs->freq = freq; + + if (ieee80211_has_protected(hdr->frame_control)) { + if (rsi_is_cipher_wep(common)) { + memmove(skb->data + 4, skb->data, hdrlen); + skb_pull(skb, 4); + } else { + memmove(skb->data + 8, skb->data, hdrlen); + skb_pull(skb, 8); + rxs->flag |= RX_FLAG_MMIC_STRIPPED; + } + rxs->flag |= RX_FLAG_DECRYPTED; + rxs->flag |= RX_FLAG_IV_STRIPPED; + } + + for (i = 0; i < RSI_MAX_VIFS; i++) { + vif = adapter->vifs[i]; + if (!vif) + continue; + if (vif->type == NL80211_IFTYPE_STATION) { + bss = &vif->bss_conf; + break; + } + } + if (!bss) + return; + /* CQM only for connected AP beacons, the RSSI is a weighted avg */ + if (bss->assoc && !(memcmp(bss->bssid, hdr->addr2, ETH_ALEN))) { + if (ieee80211_is_beacon(hdr->frame_control)) + rsi_perform_cqm(common, hdr->addr2, rxs->signal, vif); + } + + return; +} + +/** + * rsi_indicate_pkt_to_os() - This function sends received packet to mac80211. + * @common: Pointer to the driver private structure. + * @skb: Pointer to the socket buffer structure. + * + * Return: None. + */ +void rsi_indicate_pkt_to_os(struct rsi_common *common, + struct sk_buff *skb) +{ + struct rsi_hw *adapter = common->priv; + struct ieee80211_hw *hw = adapter->hw; + struct ieee80211_rx_status *rx_status = IEEE80211_SKB_RXCB(skb); + + if ((common->iface_down) || (!adapter->sc_nvifs)) { + dev_kfree_skb(skb); + return; + } + + /* filling in the ieee80211_rx_status flags */ + rsi_fill_rx_status(hw, skb, common, rx_status); + + ieee80211_rx_irqsafe(hw, skb); +} + +static void rsi_set_min_rate(struct ieee80211_hw *hw, + struct ieee80211_sta *sta, + struct rsi_common *common) +{ + u8 band = hw->conf.chandef.chan->band; + u8 ii; + u32 rate_bitmap; + bool matched = false; + + common->bitrate_mask[band] = sta->supp_rates[band]; + + rate_bitmap = (common->fixedrate_mask[band] & sta->supp_rates[band]); + + if (rate_bitmap & 0xfff) { + /* Find out the min rate */ + for (ii = 0; ii < ARRAY_SIZE(rsi_rates); ii++) { + if (rate_bitmap & BIT(ii)) { + common->min_rate = rsi_rates[ii].hw_value; + matched = true; + break; + } + } + } + + common->vif_info[0].is_ht = sta->ht_cap.ht_supported; + + if ((common->vif_info[0].is_ht) && (rate_bitmap >> 12)) { + for (ii = 0; ii < ARRAY_SIZE(rsi_mcsrates); ii++) { + if ((rate_bitmap >> 12) & BIT(ii)) { + common->min_rate = rsi_mcsrates[ii]; + matched = true; + break; + } + } + } + + if (!matched) + common->min_rate = 0xffff; +} + +/** + * rsi_mac80211_sta_add() - This function notifies driver about a peer getting + * connected. + * @hw: pointer to the ieee80211_hw structure. + * @vif: Pointer to the ieee80211_vif structure. + * @sta: Pointer to the ieee80211_sta structure. + * + * Return: 0 on success, negative error codes on failure. + */ +static int rsi_mac80211_sta_add(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, + struct ieee80211_sta *sta) +{ + struct rsi_hw *adapter = hw->priv; + struct rsi_common *common = adapter->priv; + bool sta_exist = false; + struct rsi_sta *rsta; + int status = 0; + + rsi_dbg(INFO_ZONE, "Station Add: %pM\n", sta->addr); + + mutex_lock(&common->mutex); + + if ((vif->type == NL80211_IFTYPE_AP) || + (vif->type == NL80211_IFTYPE_P2P_GO)) { + u8 cnt; + int sta_idx = -1; + int free_index = -1; + + /* Check if max stations reached */ + if (common->num_stations >= common->max_stations) { + rsi_dbg(ERR_ZONE, "Reject: Max Stations exists\n"); + status = -EOPNOTSUPP; + goto unlock; + } + for (cnt = 0; cnt < common->max_stations; cnt++) { + rsta = &common->stations[cnt]; + + if (!rsta->sta) { + if (free_index < 0) + free_index = cnt; + continue; + } + if (!memcmp(rsta->sta->addr, sta->addr, ETH_ALEN)) { + rsi_dbg(INFO_ZONE, "Station exists\n"); + sta_idx = cnt; + sta_exist = true; + break; + } + } + if (!sta_exist) { + if (free_index >= 0) + sta_idx = free_index; + } + if (sta_idx < 0) { + rsi_dbg(ERR_ZONE, + "%s: Some problem reaching here...\n", + __func__); + status = -EINVAL; + goto unlock; + } + rsta = &common->stations[sta_idx]; + rsta->sta = sta; + rsta->sta_id = sta_idx; + for (cnt = 0; cnt < IEEE80211_NUM_TIDS; cnt++) + rsta->start_tx_aggr[cnt] = false; + for (cnt = 0; cnt < IEEE80211_NUM_TIDS; cnt++) + rsta->seq_start[cnt] = 0; + if (!sta_exist) { + rsi_dbg(INFO_ZONE, "New Station\n"); + + /* Send peer notify to device */ + rsi_dbg(INFO_ZONE, "Indicate bss status to device\n"); + rsi_inform_bss_status(common, RSI_OPMODE_AP, 1, + sta->addr, sta->wme, sta->aid, + sta, sta_idx, 0, vif); + + if (common->key) { + struct ieee80211_key_conf *key = common->key; + + if ((key->cipher == WLAN_CIPHER_SUITE_WEP104) || + (key->cipher == WLAN_CIPHER_SUITE_WEP40)) + rsi_hal_load_key(adapter->priv, + key->key, + key->keylen, + RSI_PAIRWISE_KEY, + key->keyidx, + key->cipher, + sta_idx, + vif); + } + + common->num_stations++; + } + } + + if ((vif->type == NL80211_IFTYPE_STATION) || + (vif->type == NL80211_IFTYPE_P2P_CLIENT)) { + rsi_set_min_rate(hw, sta, common); + if (sta->ht_cap.ht_supported) { + common->vif_info[0].is_ht = true; + common->bitrate_mask[NL80211_BAND_2GHZ] = + sta->supp_rates[NL80211_BAND_2GHZ]; + if ((sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_20) || + (sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_40)) + common->vif_info[0].sgi = true; + ieee80211_start_tx_ba_session(sta, 0, 0); + } + } + +unlock: + mutex_unlock(&common->mutex); + + return status; +} + +/** + * rsi_mac80211_sta_remove() - This function notifies driver about a peer + * getting disconnected. + * @hw: Pointer to the ieee80211_hw structure. + * @vif: Pointer to the ieee80211_vif structure. + * @sta: Pointer to the ieee80211_sta structure. + * + * Return: 0 on success, negative error codes on failure. + */ +static int rsi_mac80211_sta_remove(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, + struct ieee80211_sta *sta) +{ + struct rsi_hw *adapter = hw->priv; + struct rsi_common *common = adapter->priv; + struct ieee80211_bss_conf *bss = &vif->bss_conf; + struct rsi_sta *rsta; + + rsi_dbg(INFO_ZONE, "Station Remove: %pM\n", sta->addr); + + mutex_lock(&common->mutex); + + if ((vif->type == NL80211_IFTYPE_AP) || + (vif->type == NL80211_IFTYPE_P2P_GO)) { + u8 sta_idx, cnt; + + /* Send peer notify to device */ + rsi_dbg(INFO_ZONE, "Indicate bss status to device\n"); + for (sta_idx = 0; sta_idx < common->max_stations; sta_idx++) { + rsta = &common->stations[sta_idx]; + + if (!rsta->sta) + continue; + if (!memcmp(rsta->sta->addr, sta->addr, ETH_ALEN)) { + rsi_inform_bss_status(common, RSI_OPMODE_AP, 0, + sta->addr, sta->wme, + sta->aid, sta, sta_idx, + 0, vif); + rsta->sta = NULL; + rsta->sta_id = -1; + for (cnt = 0; cnt < IEEE80211_NUM_TIDS; cnt++) + rsta->start_tx_aggr[cnt] = false; + if (common->num_stations > 0) + common->num_stations--; + break; + } + } + if (sta_idx >= common->max_stations) + rsi_dbg(ERR_ZONE, "%s: No station found\n", __func__); + } + + if ((vif->type == NL80211_IFTYPE_STATION) || + (vif->type == NL80211_IFTYPE_P2P_CLIENT)) { + /* Resetting all the fields to default values */ + memcpy((u8 *)bss->bssid, (u8 *)sta->addr, ETH_ALEN); + bss->qos = sta->wme; + common->bitrate_mask[NL80211_BAND_2GHZ] = 0; + common->bitrate_mask[NL80211_BAND_5GHZ] = 0; + common->min_rate = 0xffff; + common->vif_info[0].is_ht = false; + common->vif_info[0].sgi = false; + common->vif_info[0].seq_start = 0; + common->secinfo.ptk_cipher = 0; + common->secinfo.gtk_cipher = 0; + if (!common->iface_down) + rsi_send_rx_filter_frame(common, 0); + } + mutex_unlock(&common->mutex); + + return 0; +} + +/** + * rsi_mac80211_set_antenna() - This function is used to configure + * tx and rx antennas. + * @hw: Pointer to the ieee80211_hw structure. + * @tx_ant: Bitmap for tx antenna + * @rx_ant: Bitmap for rx antenna + * + * Return: 0 on success, Negative error code on failure. + */ +static int rsi_mac80211_set_antenna(struct ieee80211_hw *hw, + u32 tx_ant, u32 rx_ant) +{ + struct rsi_hw *adapter = hw->priv; + struct rsi_common *common = adapter->priv; + u8 antenna = 0; + + if (tx_ant > 1 || rx_ant > 1) { + rsi_dbg(ERR_ZONE, + "Invalid antenna selection (tx: %d, rx:%d)\n", + tx_ant, rx_ant); + rsi_dbg(ERR_ZONE, + "Use 0 for int_ant, 1 for ext_ant\n"); + return -EINVAL; + } + + rsi_dbg(INFO_ZONE, "%s: Antenna map Tx %x Rx %d\n", + __func__, tx_ant, rx_ant); + + mutex_lock(&common->mutex); + + antenna = tx_ant ? ANTENNA_SEL_UFL : ANTENNA_SEL_INT; + if (common->ant_in_use != antenna) + if (rsi_set_antenna(common, antenna)) + goto fail_set_antenna; + + rsi_dbg(INFO_ZONE, "(%s) Antenna path configured successfully\n", + tx_ant ? "UFL" : "INT"); + + common->ant_in_use = antenna; + + mutex_unlock(&common->mutex); + + return 0; + +fail_set_antenna: + rsi_dbg(ERR_ZONE, "%s: Failed.\n", __func__); + mutex_unlock(&common->mutex); + return -EINVAL; +} + +/** + * rsi_mac80211_get_antenna() - This function is used to configure + * tx and rx antennas. + * + * @hw: Pointer to the ieee80211_hw structure. + * @tx_ant: Bitmap for tx antenna + * @rx_ant: Bitmap for rx antenna + * + * Return: 0 on success, negative error codes on failure. + */ +static int rsi_mac80211_get_antenna(struct ieee80211_hw *hw, + u32 *tx_ant, u32 *rx_ant) +{ + struct rsi_hw *adapter = hw->priv; + struct rsi_common *common = adapter->priv; + + mutex_lock(&common->mutex); + + *tx_ant = (common->ant_in_use == ANTENNA_SEL_UFL) ? 1 : 0; + *rx_ant = 0; + + mutex_unlock(&common->mutex); + + return 0; +} + +static int rsi_map_region_code(enum nl80211_dfs_regions region_code) +{ + switch (region_code) { + case NL80211_DFS_FCC: + return RSI_REGION_FCC; + case NL80211_DFS_ETSI: + return RSI_REGION_ETSI; + case NL80211_DFS_JP: + return RSI_REGION_TELEC; + case NL80211_DFS_UNSET: + return RSI_REGION_WORLD; + } + return RSI_REGION_WORLD; +} + +static void rsi_reg_notify(struct wiphy *wiphy, + struct regulatory_request *request) +{ + struct ieee80211_supported_band *sband; + struct ieee80211_channel *ch; + struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); + struct rsi_hw * adapter = hw->priv; + struct rsi_common *common = adapter->priv; + int i; + + mutex_lock(&common->mutex); + + rsi_dbg(INFO_ZONE, "country = %s dfs_region = %d\n", + request->alpha2, request->dfs_region); + + if (common->num_supp_bands > 1) { + sband = wiphy->bands[NL80211_BAND_5GHZ]; + + for (i = 0; i < sband->n_channels; i++) { + ch = &sband->channels[i]; + if (ch->flags & IEEE80211_CHAN_DISABLED) + continue; + + if (ch->flags & IEEE80211_CHAN_RADAR) + ch->flags |= IEEE80211_CHAN_NO_IR; + } + } + adapter->dfs_region = rsi_map_region_code(request->dfs_region); + rsi_dbg(INFO_ZONE, "RSI region code = %d\n", adapter->dfs_region); + + adapter->country[0] = request->alpha2[0]; + adapter->country[1] = request->alpha2[1]; + + mutex_unlock(&common->mutex); +} + +static void rsi_mac80211_rfkill_poll(struct ieee80211_hw *hw) +{ + struct rsi_hw *adapter = hw->priv; + struct rsi_common *common = adapter->priv; + + mutex_lock(&common->mutex); + if (common->fsm_state != FSM_MAC_INIT_DONE) + wiphy_rfkill_set_hw_state(hw->wiphy, true); + else + wiphy_rfkill_set_hw_state(hw->wiphy, false); + mutex_unlock(&common->mutex); +} + +static void rsi_resume_conn_channel(struct rsi_common *common) +{ + struct rsi_hw *adapter = common->priv; + struct ieee80211_vif *vif; + int cnt; + + for (cnt = 0; cnt < RSI_MAX_VIFS; cnt++) { + vif = adapter->vifs[cnt]; + if (!vif) + continue; + + if ((vif->type == NL80211_IFTYPE_AP) || + (vif->type == NL80211_IFTYPE_P2P_GO)) { + rsi_switch_channel(adapter, vif); + break; + } + if (((vif->type == NL80211_IFTYPE_STATION) || + (vif->type == NL80211_IFTYPE_P2P_CLIENT)) && + vif->bss_conf.assoc) { + rsi_switch_channel(adapter, vif); + break; + } + } +} + +void rsi_roc_timeout(struct timer_list *t) +{ + struct rsi_common *common = from_timer(common, t, roc_timer); + + rsi_dbg(INFO_ZONE, "Remain on channel expired\n"); + + mutex_lock(&common->mutex); + ieee80211_remain_on_channel_expired(common->priv->hw); + + if (timer_pending(&common->roc_timer)) + del_timer(&common->roc_timer); + + rsi_resume_conn_channel(common); + mutex_unlock(&common->mutex); +} + +static int rsi_mac80211_roc(struct ieee80211_hw *hw, struct ieee80211_vif *vif, + struct ieee80211_channel *chan, int duration, + enum ieee80211_roc_type type) +{ + struct rsi_hw *adapter = (struct rsi_hw *)hw->priv; + struct rsi_common *common = (struct rsi_common *)adapter->priv; + int status = 0; + + rsi_dbg(INFO_ZONE, "***** Remain on channel *****\n"); + + mutex_lock(&common->mutex); + rsi_dbg(INFO_ZONE, "%s: channel: %d duration: %dms\n", + __func__, chan->hw_value, duration); + + if (timer_pending(&common->roc_timer)) { + rsi_dbg(INFO_ZONE, "Stop on-going ROC\n"); + del_timer(&common->roc_timer); + } + common->roc_timer.expires = msecs_to_jiffies(duration) + jiffies; + add_timer(&common->roc_timer); + + /* Configure band */ + if (rsi_band_check(common, chan)) { + rsi_dbg(ERR_ZONE, "Failed to set band\n"); + status = -EINVAL; + goto out; + } + + /* Configure channel */ + if (rsi_set_channel(common, chan)) { + rsi_dbg(ERR_ZONE, "Failed to set the channel\n"); + status = -EINVAL; + goto out; + } + + common->roc_vif = vif; + ieee80211_ready_on_channel(hw); + rsi_dbg(INFO_ZONE, "%s: Ready on channel :%d\n", + __func__, chan->hw_value); + +out: + mutex_unlock(&common->mutex); + + return status; +} + +static int rsi_mac80211_cancel_roc(struct ieee80211_hw *hw, + struct ieee80211_vif *vif) +{ + struct rsi_hw *adapter = hw->priv; + struct rsi_common *common = adapter->priv; + + rsi_dbg(INFO_ZONE, "Cancel remain on channel\n"); + + mutex_lock(&common->mutex); + if (!timer_pending(&common->roc_timer)) { + mutex_unlock(&common->mutex); + return 0; + } + + del_timer(&common->roc_timer); + + rsi_resume_conn_channel(common); + mutex_unlock(&common->mutex); + + return 0; +} + +#ifdef CONFIG_PM +static const struct wiphy_wowlan_support rsi_wowlan_support = { + .flags = WIPHY_WOWLAN_ANY | + WIPHY_WOWLAN_MAGIC_PKT | + WIPHY_WOWLAN_DISCONNECT | + WIPHY_WOWLAN_GTK_REKEY_FAILURE | + WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | + WIPHY_WOWLAN_EAP_IDENTITY_REQ | + WIPHY_WOWLAN_4WAY_HANDSHAKE, +}; + +static u16 rsi_wow_map_triggers(struct rsi_common *common, + struct cfg80211_wowlan *wowlan) +{ + u16 wow_triggers = 0; + + rsi_dbg(INFO_ZONE, "Mapping wowlan triggers\n"); + + if (wowlan->any) + wow_triggers |= RSI_WOW_ANY; + if (wowlan->magic_pkt) + wow_triggers |= RSI_WOW_MAGIC_PKT; + if (wowlan->disconnect) + wow_triggers |= RSI_WOW_DISCONNECT; + if (wowlan->gtk_rekey_failure || wowlan->eap_identity_req || + wowlan->four_way_handshake) + wow_triggers |= RSI_WOW_GTK_REKEY; + + return wow_triggers; +} + +int rsi_config_wowlan(struct rsi_hw *adapter, struct cfg80211_wowlan *wowlan) +{ + struct rsi_common *common = adapter->priv; + u16 triggers = 0; + u16 rx_filter_word = 0; + struct ieee80211_bss_conf *bss = NULL; + + rsi_dbg(INFO_ZONE, "Config WoWLAN to device\n"); + + if (!adapter->vifs[0]) + return -EINVAL; + + bss = &adapter->vifs[0]->bss_conf; + + if (WARN_ON(!wowlan)) { + rsi_dbg(ERR_ZONE, "WoW triggers not enabled\n"); + return -EINVAL; + } + + common->wow_flags |= RSI_WOW_ENABLED; + triggers = rsi_wow_map_triggers(common, wowlan); + if (!triggers) { + rsi_dbg(ERR_ZONE, "%s:No valid WoW triggers\n", __func__); + return -EINVAL; + } + if (!bss->assoc) { + rsi_dbg(ERR_ZONE, + "Cannot configure WoWLAN (Station not connected)\n"); + common->wow_flags |= RSI_WOW_NO_CONNECTION; + return 0; + } + rsi_dbg(INFO_ZONE, "TRIGGERS %x\n", triggers); + + if (common->coex_mode > 1) + rsi_disable_ps(adapter, adapter->vifs[0]); + + rsi_send_wowlan_request(common, triggers, 1); + + /** + * Increase the beacon_miss threshold & keep-alive timers in + * vap_update frame + */ + rsi_send_vap_dynamic_update(common); + + rx_filter_word = (ALLOW_DATA_ASSOC_PEER | DISALLOW_BEACONS); + rsi_send_rx_filter_frame(common, rx_filter_word); + + return 0; +} +EXPORT_SYMBOL(rsi_config_wowlan); + +static int rsi_mac80211_suspend(struct ieee80211_hw *hw, + struct cfg80211_wowlan *wowlan) +{ + struct rsi_hw *adapter = hw->priv; + struct rsi_common *common = adapter->priv; + + rsi_dbg(INFO_ZONE, "%s: mac80211 suspend\n", __func__); + mutex_lock(&common->mutex); + if (rsi_config_wowlan(adapter, wowlan)) { + rsi_dbg(ERR_ZONE, "Failed to configure WoWLAN\n"); + mutex_unlock(&common->mutex); + return 1; + } + mutex_unlock(&common->mutex); + + return 0; +} + +static int rsi_mac80211_resume(struct ieee80211_hw *hw) +{ + u16 rx_filter_word = 0; + struct rsi_hw *adapter = hw->priv; + struct rsi_common *common = adapter->priv; + + common->wow_flags = 0; + + rsi_dbg(INFO_ZONE, "%s: mac80211 resume\n", __func__); + + if (common->hibernate_resume) { + common->mac_ops_resumed = true; + /* Device need a complete restart of all MAC operations. + * returning 1 will serve this purpose. + */ + return 1; + } + + mutex_lock(&common->mutex); + rsi_send_wowlan_request(common, 0, 0); + + rx_filter_word = (ALLOW_DATA_ASSOC_PEER | ALLOW_CTRL_ASSOC_PEER | + ALLOW_MGMT_ASSOC_PEER); + rsi_send_rx_filter_frame(common, rx_filter_word); + mutex_unlock(&common->mutex); + + return 0; +} + +#endif + +static const struct ieee80211_ops mac80211_ops = { + .tx = rsi_mac80211_tx, + .start = rsi_mac80211_start, + .stop = rsi_mac80211_stop, + .add_interface = rsi_mac80211_add_interface, + .remove_interface = rsi_mac80211_remove_interface, + .config = rsi_mac80211_config, + .bss_info_changed = rsi_mac80211_bss_info_changed, + .conf_tx = rsi_mac80211_conf_tx, + .configure_filter = rsi_mac80211_conf_filter, + .set_key = rsi_mac80211_set_key, + .set_rts_threshold = rsi_mac80211_set_rts_threshold, + .set_bitrate_mask = rsi_mac80211_set_rate_mask, + .ampdu_action = rsi_mac80211_ampdu_action, + .sta_add = rsi_mac80211_sta_add, + .sta_remove = rsi_mac80211_sta_remove, + .set_antenna = rsi_mac80211_set_antenna, + .get_antenna = rsi_mac80211_get_antenna, + .rfkill_poll = rsi_mac80211_rfkill_poll, + .remain_on_channel = rsi_mac80211_roc, + .cancel_remain_on_channel = rsi_mac80211_cancel_roc, +#ifdef CONFIG_PM + .suspend = rsi_mac80211_suspend, + .resume = rsi_mac80211_resume, +#endif + .hw_scan = rsi_mac80211_hw_scan_start, + .cancel_hw_scan = rsi_mac80211_cancel_hw_scan, +}; + +/** + * rsi_mac80211_attach() - This function is used to initialize Mac80211 stack. + * @common: Pointer to the driver private structure. + * + * Return: 0 on success, negative error codes on failure. + */ +int rsi_mac80211_attach(struct rsi_common *common) +{ + int status = 0; + struct ieee80211_hw *hw = NULL; + struct wiphy *wiphy = NULL; + struct rsi_hw *adapter = common->priv; + u8 addr_mask[ETH_ALEN] = {0x0, 0x0, 0x0, 0x0, 0x0, 0x3}; + + rsi_dbg(INIT_ZONE, "%s: Performing mac80211 attach\n", __func__); + + hw = ieee80211_alloc_hw(sizeof(struct rsi_hw), &mac80211_ops); + if (!hw) { + rsi_dbg(ERR_ZONE, "%s: ieee80211 hw alloc failed\n", __func__); + return -ENOMEM; + } + + wiphy = hw->wiphy; + + SET_IEEE80211_DEV(hw, adapter->device); + + hw->priv = adapter; + adapter->hw = hw; + + ieee80211_hw_set(hw, SIGNAL_DBM); + ieee80211_hw_set(hw, HAS_RATE_CONTROL); + ieee80211_hw_set(hw, AMPDU_AGGREGATION); + ieee80211_hw_set(hw, SUPPORTS_PS); + ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS); + + hw->queues = MAX_HW_QUEUES; + hw->extra_tx_headroom = RSI_NEEDED_HEADROOM; + + hw->max_rates = 1; + hw->max_rate_tries = MAX_RETRIES; + hw->uapsd_queues = RSI_IEEE80211_UAPSD_QUEUES; + hw->uapsd_max_sp_len = IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL; + + hw->max_tx_aggregation_subframes = RSI_MAX_TX_AGGR_FRMS; + hw->max_rx_aggregation_subframes = RSI_MAX_RX_AGGR_FRMS; + hw->rate_control_algorithm = "AARF"; + + SET_IEEE80211_PERM_ADDR(hw, common->mac_addr); + ether_addr_copy(hw->wiphy->addr_mask, addr_mask); + + wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | + BIT(NL80211_IFTYPE_AP) | + BIT(NL80211_IFTYPE_P2P_DEVICE) | + BIT(NL80211_IFTYPE_P2P_CLIENT) | + BIT(NL80211_IFTYPE_P2P_GO); + + wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; + wiphy->retry_short = RETRY_SHORT; + wiphy->retry_long = RETRY_LONG; + wiphy->frag_threshold = IEEE80211_MAX_FRAG_THRESHOLD; + wiphy->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; + wiphy->flags = 0; + + wiphy->available_antennas_rx = 1; + wiphy->available_antennas_tx = 1; + + status = rsi_register_rates_channels(adapter, NL80211_BAND_2GHZ); + if (status) + return status; + wiphy->bands[NL80211_BAND_2GHZ] = + &adapter->sbands[NL80211_BAND_2GHZ]; + if (common->num_supp_bands > 1) { + status = rsi_register_rates_channels(adapter, + NL80211_BAND_5GHZ); + if (status) + return status; + wiphy->bands[NL80211_BAND_5GHZ] = + &adapter->sbands[NL80211_BAND_5GHZ]; + } + + /* AP Parameters */ + wiphy->max_ap_assoc_sta = rsi_max_ap_stas[common->oper_mode - 1]; + common->max_stations = wiphy->max_ap_assoc_sta; + rsi_dbg(ERR_ZONE, "Max Stations Allowed = %d\n", common->max_stations); + hw->sta_data_size = sizeof(struct rsi_sta); + + wiphy->max_scan_ssids = RSI_MAX_SCAN_SSIDS; + wiphy->max_scan_ie_len = RSI_MAX_SCAN_IE_LEN; + wiphy->flags = WIPHY_FLAG_REPORTS_OBSS; + wiphy->flags |= WIPHY_FLAG_AP_UAPSD; + wiphy->features |= NL80211_FEATURE_INACTIVITY_TIMER; + wiphy->reg_notifier = rsi_reg_notify; + +#ifdef CONFIG_PM + wiphy->wowlan = &rsi_wowlan_support; +#endif + + wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_CQM_RSSI_LIST); + + /* Wi-Fi direct parameters */ + wiphy->flags |= WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL; + wiphy->flags |= WIPHY_FLAG_OFFCHAN_TX; + wiphy->max_remain_on_channel_duration = 10000; + hw->max_listen_interval = 10; + wiphy->iface_combinations = rsi_iface_combinations; + wiphy->n_iface_combinations = ARRAY_SIZE(rsi_iface_combinations); + + if (common->coex_mode > 1) + wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; + + status = ieee80211_register_hw(hw); + if (status) + return status; + + return rsi_init_dbgfs(adapter); +} diff --git a/drivers/net/wireless/rsi/rsi_91x_main.c b/drivers/net/wireless/rsi/rsi_91x_main.c new file mode 100644 index 0000000..11245cd --- /dev/null +++ b/drivers/net/wireless/rsi/rsi_91x_main.c @@ -0,0 +1,445 @@ +/** + * Copyright (c) 2014 Redpine Signals Inc. + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include <linux/module.h> +#include <linux/firmware.h> +#include <net/rsi_91x.h> +#include "rsi_mgmt.h" +#include "rsi_common.h" +#include "rsi_coex.h" +#include "rsi_hal.h" + +u32 rsi_zone_enabled = /* INFO_ZONE | + INIT_ZONE | + MGMT_TX_ZONE | + MGMT_RX_ZONE | + DATA_TX_ZONE | + DATA_RX_ZONE | + FSM_ZONE | + ISR_ZONE | */ + ERR_ZONE | + 0; +EXPORT_SYMBOL_GPL(rsi_zone_enabled); + +#ifdef CPTCFG_RSI_COEX +static struct rsi_proto_ops g_proto_ops = { + .coex_send_pkt = rsi_coex_send_pkt, + .get_host_intf = rsi_get_host_intf, + .set_bt_context = rsi_set_bt_context, +}; +#endif + +/** + * rsi_dbg() - This function outputs informational messages. + * @zone: Zone of interest for output message. + * @fmt: printf-style format for output message. + * + * Return: none + */ +void rsi_dbg(u32 zone, const char *fmt, ...) +{ + struct va_format vaf; + va_list args; + + va_start(args, fmt); + + vaf.fmt = fmt; + vaf.va = &args; + + if (zone & rsi_zone_enabled) + pr_info("%pV", &vaf); + va_end(args); +} +EXPORT_SYMBOL_GPL(rsi_dbg); + +static char *opmode_str(int oper_mode) +{ + switch (oper_mode) { + case DEV_OPMODE_WIFI_ALONE: + return "Wi-Fi alone"; + case DEV_OPMODE_BT_ALONE: + return "BT EDR alone"; + case DEV_OPMODE_BT_LE_ALONE: + return "BT LE alone"; + case DEV_OPMODE_BT_DUAL: + return "BT Dual"; + case DEV_OPMODE_STA_BT: + return "Wi-Fi STA + BT EDR"; + case DEV_OPMODE_STA_BT_LE: + return "Wi-Fi STA + BT LE"; + case DEV_OPMODE_STA_BT_DUAL: + return "Wi-Fi STA + BT DUAL"; + case DEV_OPMODE_AP_BT: + return "Wi-Fi AP + BT EDR"; + case DEV_OPMODE_AP_BT_DUAL: + return "Wi-Fi AP + BT DUAL"; + } + + return "Unknown"; +} + +void rsi_print_version(struct rsi_common *common) +{ + rsi_dbg(ERR_ZONE, "================================================\n"); + rsi_dbg(ERR_ZONE, "================ RSI Version Info ==============\n"); + rsi_dbg(ERR_ZONE, "================================================\n"); + rsi_dbg(ERR_ZONE, "FW Version\t: %d.%d.%d\n", + common->lmac_ver.major, common->lmac_ver.minor, + common->lmac_ver.release_num); + rsi_dbg(ERR_ZONE, "Operating mode\t: %d [%s]", + common->oper_mode, opmode_str(common->oper_mode)); + rsi_dbg(ERR_ZONE, "Firmware file\t: %s", common->priv->fw_file_name); + rsi_dbg(ERR_ZONE, "================================================\n"); +} + +/** + * rsi_prepare_skb() - This function prepares the skb. + * @common: Pointer to the driver private structure. + * @buffer: Pointer to the packet data. + * @pkt_len: Length of the packet. + * @extended_desc: Extended descriptor. + * + * Return: Successfully skb. + */ +static struct sk_buff *rsi_prepare_skb(struct rsi_common *common, + u8 *buffer, + u32 pkt_len, + u8 extended_desc) +{ + struct sk_buff *skb = NULL; + u8 payload_offset; + + if (WARN(!pkt_len, "%s: Dummy pkt received", __func__)) + return NULL; + + if (pkt_len > (RSI_RCV_BUFFER_LEN * 4)) { + rsi_dbg(ERR_ZONE, "%s: Pkt size > max rx buf size %d\n", + __func__, pkt_len); + pkt_len = RSI_RCV_BUFFER_LEN * 4; + } + + pkt_len -= extended_desc; + skb = dev_alloc_skb(pkt_len + FRAME_DESC_SZ); + if (skb == NULL) + return NULL; + + payload_offset = (extended_desc + FRAME_DESC_SZ); + skb_put(skb, pkt_len); + memcpy((skb->data), (buffer + payload_offset), skb->len); + + return skb; +} + +/** + * rsi_read_pkt() - This function reads frames from the card. + * @common: Pointer to the driver private structure. + * @rcv_pkt_len: Received pkt length. In case of USB it is 0. + * + * Return: 0 on success, -1 on failure. + */ +int rsi_read_pkt(struct rsi_common *common, u8 *rx_pkt, s32 rcv_pkt_len) +{ + u8 *frame_desc = NULL, extended_desc = 0; + u32 index, length = 0, queueno = 0; + u16 actual_length = 0, offset; + struct sk_buff *skb = NULL; +#ifdef CPTCFG_RSI_COEX + u8 bt_pkt_type; +#endif + + index = 0; + do { + frame_desc = &rx_pkt[index]; + actual_length = *(u16 *)&frame_desc[0]; + offset = *(u16 *)&frame_desc[2]; + + queueno = rsi_get_queueno(frame_desc, offset); + length = rsi_get_length(frame_desc, offset); + + /* Extended descriptor is valid for WLAN queues only */ + if (queueno == RSI_WIFI_DATA_Q || queueno == RSI_WIFI_MGMT_Q) + extended_desc = rsi_get_extended_desc(frame_desc, + offset); + + switch (queueno) { + case RSI_COEX_Q: +#ifdef CPTCFG_RSI_COEX + if (common->coex_mode > 1) + rsi_coex_recv_pkt(common, frame_desc + offset); + else +#endif + rsi_mgmt_pkt_recv(common, + (frame_desc + offset)); + break; + + case RSI_WIFI_DATA_Q: + skb = rsi_prepare_skb(common, + (frame_desc + offset), + length, + extended_desc); + if (skb == NULL) + goto fail; + + rsi_indicate_pkt_to_os(common, skb); + break; + + case RSI_WIFI_MGMT_Q: + rsi_mgmt_pkt_recv(common, (frame_desc + offset)); + break; + +#ifdef CPTCFG_RSI_COEX + case RSI_BT_MGMT_Q: + case RSI_BT_DATA_Q: +#define BT_RX_PKT_TYPE_OFST 14 +#define BT_CARD_READY_IND 0x89 + bt_pkt_type = frame_desc[offset + BT_RX_PKT_TYPE_OFST]; + if (bt_pkt_type == BT_CARD_READY_IND) { + rsi_dbg(INFO_ZONE, "BT Card ready recvd\n"); + if (rsi_bt_ops.attach(common, &g_proto_ops)) + rsi_dbg(ERR_ZONE, + "Failed to attach BT module\n"); + } else { + if (common->bt_adapter) + rsi_bt_ops.recv_pkt(common->bt_adapter, + frame_desc + offset); + } + break; +#endif + + default: + rsi_dbg(ERR_ZONE, "%s: pkt from invalid queue: %d\n", + __func__, queueno); + goto fail; + } + + index += actual_length; + rcv_pkt_len -= actual_length; + } while (rcv_pkt_len > 0); + + return 0; +fail: + return -EINVAL; +} +EXPORT_SYMBOL_GPL(rsi_read_pkt); + +/** + * rsi_tx_scheduler_thread() - This function is a kernel thread to send the + * packets to the device. + * @common: Pointer to the driver private structure. + * + * Return: None. + */ +static void rsi_tx_scheduler_thread(struct rsi_common *common) +{ + struct rsi_hw *adapter = common->priv; + u32 timeout = EVENT_WAIT_FOREVER; + + do { + if (adapter->determine_event_timeout) + timeout = adapter->determine_event_timeout(adapter); + rsi_wait_event(&common->tx_thread.event, timeout); + rsi_reset_event(&common->tx_thread.event); + + if (common->init_done) + rsi_core_qos_processor(common); + } while (atomic_read(&common->tx_thread.thread_done) == 0); + complete_and_exit(&common->tx_thread.completion, 0); +} + +#ifdef CPTCFG_RSI_COEX +enum rsi_host_intf rsi_get_host_intf(void *priv) +{ + struct rsi_common *common = (struct rsi_common *)priv; + + return common->priv->rsi_host_intf; +} + +void rsi_set_bt_context(void *priv, void *bt_context) +{ + struct rsi_common *common = (struct rsi_common *)priv; + + common->bt_adapter = bt_context; +} +#endif + +/** + * rsi_91x_init() - This function initializes os interface operations. + * @void: Void. + * + * Return: Pointer to the adapter structure on success, NULL on failure . + */ +struct rsi_hw *rsi_91x_init(u16 oper_mode) +{ + struct rsi_hw *adapter = NULL; + struct rsi_common *common = NULL; + u8 ii = 0; + + adapter = kzalloc(sizeof(*adapter), GFP_KERNEL); + if (!adapter) + return NULL; + + adapter->priv = kzalloc(sizeof(*common), GFP_KERNEL); + if (adapter->priv == NULL) { + rsi_dbg(ERR_ZONE, "%s: Failed in allocation of memory\n", + __func__); + kfree(adapter); + return NULL; + } else { + common = adapter->priv; + common->priv = adapter; + } + + for (ii = 0; ii < NUM_SOFT_QUEUES; ii++) + skb_queue_head_init(&common->tx_queue[ii]); + + rsi_init_event(&common->tx_thread.event); + mutex_init(&common->mutex); + mutex_init(&common->tx_lock); + mutex_init(&common->rx_lock); + mutex_init(&common->tx_bus_mutex); + + if (rsi_create_kthread(common, + &common->tx_thread, + rsi_tx_scheduler_thread, + "Tx-Thread")) { + rsi_dbg(ERR_ZONE, "%s: Unable to init tx thrd\n", __func__); + goto err; + } + + rsi_default_ps_params(adapter); + init_bgscan_params(common); + spin_lock_init(&adapter->ps_lock); + timer_setup(&common->roc_timer, rsi_roc_timeout, 0); + init_completion(&common->wlan_init_completion); + adapter->device_model = RSI_DEV_9113; + common->oper_mode = oper_mode; + + /* Determine coex mode */ + switch (common->oper_mode) { + case DEV_OPMODE_STA_BT_DUAL: + case DEV_OPMODE_STA_BT: + case DEV_OPMODE_STA_BT_LE: + case DEV_OPMODE_BT_ALONE: + case DEV_OPMODE_BT_LE_ALONE: + case DEV_OPMODE_BT_DUAL: + common->coex_mode = 2; + break; + case DEV_OPMODE_AP_BT_DUAL: + case DEV_OPMODE_AP_BT: + common->coex_mode = 4; + break; + case DEV_OPMODE_WIFI_ALONE: + common->coex_mode = 1; + break; + default: + common->oper_mode = 1; + common->coex_mode = 1; + } + rsi_dbg(INFO_ZONE, "%s: oper_mode = %d, coex_mode = %d\n", + __func__, common->oper_mode, common->coex_mode); + + adapter->device_model = RSI_DEV_9113; +#ifdef CPTCFG_RSI_COEX + if (common->coex_mode > 1) { + if (rsi_coex_attach(common)) { + rsi_dbg(ERR_ZONE, "Failed to init coex module\n"); + goto err; + } + } +#endif + + common->init_done = true; + return adapter; + +err: + kfree(common); + kfree(adapter); + return NULL; +} +EXPORT_SYMBOL_GPL(rsi_91x_init); + +/** + * rsi_91x_deinit() - This function de-intializes os intf operations. + * @adapter: Pointer to the adapter structure. + * + * Return: None. + */ +void rsi_91x_deinit(struct rsi_hw *adapter) +{ + struct rsi_common *common = adapter->priv; + u8 ii; + + rsi_dbg(INFO_ZONE, "%s: Performing deinit os ops\n", __func__); + + rsi_kill_thread(&common->tx_thread); + + for (ii = 0; ii < NUM_SOFT_QUEUES; ii++) + skb_queue_purge(&common->tx_queue[ii]); + +#ifdef CPTCFG_RSI_COEX + if (common->coex_mode > 1) { + if (common->bt_adapter) { + rsi_bt_ops.detach(common->bt_adapter); + common->bt_adapter = NULL; + } + rsi_coex_detach(common); + } +#endif + + common->init_done = false; + + kfree(common); + kfree(adapter->rsi_dev); + kfree(adapter); +} +EXPORT_SYMBOL_GPL(rsi_91x_deinit); + +/** + * rsi_91x_hal_module_init() - This function is invoked when the module is + * loaded into the kernel. + * It registers the client driver. + * @void: Void. + * + * Return: 0 on success, -1 on failure. + */ +static int rsi_91x_hal_module_init(void) +{ + rsi_dbg(INIT_ZONE, "%s: Module init called\n", __func__); + return 0; +} + +/** + * rsi_91x_hal_module_exit() - This function is called at the time of + * removing/unloading the module. + * It unregisters the client driver. + * @void: Void. + * + * Return: None. + */ +static void rsi_91x_hal_module_exit(void) +{ + rsi_dbg(INIT_ZONE, "%s: Module exit called\n", __func__); +} + +module_init(rsi_91x_hal_module_init); +module_exit(rsi_91x_hal_module_exit); +MODULE_AUTHOR("Redpine Signals Inc"); +MODULE_DESCRIPTION("Station driver for RSI 91x devices"); +MODULE_SUPPORTED_DEVICE("RSI-91x"); +MODULE_VERSION("0.1"); +MODULE_LICENSE("Dual BSD/GPL"); diff --git a/drivers/net/wireless/rsi/rsi_91x_mgmt.c b/drivers/net/wireless/rsi/rsi_91x_mgmt.c new file mode 100644 index 0000000..9cc8a33 --- /dev/null +++ b/drivers/net/wireless/rsi/rsi_91x_mgmt.c @@ -0,0 +1,2240 @@ +/** + * Copyright (c) 2014 Redpine Signals Inc. + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include <linux/etherdevice.h> +#include <linux/timer.h> +#include "rsi_mgmt.h" +#include "rsi_common.h" +#include "rsi_ps.h" +#include "rsi_hal.h" + +static struct bootup_params boot_params_20 = { + .magic_number = cpu_to_le16(0x5aa5), + .crystal_good_time = 0x0, + .valid = cpu_to_le32(VALID_20), + .reserved_for_valids = 0x0, + .bootup_mode_info = 0x0, + .digital_loop_back_params = 0x0, + .rtls_timestamp_en = 0x0, + .host_spi_intr_cfg = 0x0, + .device_clk_info = {{ + .pll_config_g = { + .tapll_info_g = { + .pll_reg_1 = cpu_to_le16((TA_PLL_N_VAL_20 << 8)| + (TA_PLL_M_VAL_20)), + .pll_reg_2 = cpu_to_le16(TA_PLL_P_VAL_20), + }, + .pll960_info_g = { + .pll_reg_1 = cpu_to_le16((PLL960_P_VAL_20 << 8)| + (PLL960_N_VAL_20)), + .pll_reg_2 = cpu_to_le16(PLL960_M_VAL_20), + .pll_reg_3 = 0x0, + }, + .afepll_info_g = { + .pll_reg = cpu_to_le16(0x9f0), + } + }, + .switch_clk_g = { + .switch_clk_info = cpu_to_le16(0xb), + .bbp_lmac_clk_reg_val = cpu_to_le16(0x111), + .umac_clock_reg_config = cpu_to_le16(0x48), + .qspi_uart_clock_reg_config = cpu_to_le16(0x1211) + } + }, + { + .pll_config_g = { + .tapll_info_g = { + .pll_reg_1 = cpu_to_le16((TA_PLL_N_VAL_20 << 8)| + (TA_PLL_M_VAL_20)), + .pll_reg_2 = cpu_to_le16(TA_PLL_P_VAL_20), + }, + .pll960_info_g = { + .pll_reg_1 = cpu_to_le16((PLL960_P_VAL_20 << 8)| + (PLL960_N_VAL_20)), + .pll_reg_2 = cpu_to_le16(PLL960_M_VAL_20), + .pll_reg_3 = 0x0, + }, + .afepll_info_g = { + .pll_reg = cpu_to_le16(0x9f0), + } + }, + .switch_clk_g = { + .switch_clk_info = 0x0, + .bbp_lmac_clk_reg_val = 0x0, + .umac_clock_reg_config = 0x0, + .qspi_uart_clock_reg_config = 0x0 + } + }, + { + .pll_config_g = { + .tapll_info_g = { + .pll_reg_1 = cpu_to_le16((TA_PLL_N_VAL_20 << 8)| + (TA_PLL_M_VAL_20)), + .pll_reg_2 = cpu_to_le16(TA_PLL_P_VAL_20), + }, + .pll960_info_g = { + .pll_reg_1 = cpu_to_le16((PLL960_P_VAL_20 << 8)| + (PLL960_N_VAL_20)), + .pll_reg_2 = cpu_to_le16(PLL960_M_VAL_20), + .pll_reg_3 = 0x0, + }, + .afepll_info_g = { + .pll_reg = cpu_to_le16(0x9f0), + } + }, + .switch_clk_g = { + .switch_clk_info = 0x0, + .bbp_lmac_clk_reg_val = 0x0, + .umac_clock_reg_config = 0x0, + .qspi_uart_clock_reg_config = 0x0 + } + } }, + .buckboost_wakeup_cnt = 0x0, + .pmu_wakeup_wait = 0x0, + .shutdown_wait_time = 0x0, + .pmu_slp_clkout_sel = 0x0, + .wdt_prog_value = 0x0, + .wdt_soc_rst_delay = 0x0, + .dcdc_operation_mode = 0x0, + .soc_reset_wait_cnt = 0x0, + .waiting_time_at_fresh_sleep = 0x0, + .max_threshold_to_avoid_sleep = 0x0, + .beacon_resedue_alg_en = 0, +}; + +static struct bootup_params boot_params_40 = { + .magic_number = cpu_to_le16(0x5aa5), + .crystal_good_time = 0x0, + .valid = cpu_to_le32(VALID_40), + .reserved_for_valids = 0x0, + .bootup_mode_info = 0x0, + .digital_loop_back_params = 0x0, + .rtls_timestamp_en = 0x0, + .host_spi_intr_cfg = 0x0, + .device_clk_info = {{ + .pll_config_g = { + .tapll_info_g = { + .pll_reg_1 = cpu_to_le16((TA_PLL_N_VAL_40 << 8)| + (TA_PLL_M_VAL_40)), + .pll_reg_2 = cpu_to_le16(TA_PLL_P_VAL_40), + }, + .pll960_info_g = { + .pll_reg_1 = cpu_to_le16((PLL960_P_VAL_40 << 8)| + (PLL960_N_VAL_40)), + .pll_reg_2 = cpu_to_le16(PLL960_M_VAL_40), + .pll_reg_3 = 0x0, + }, + .afepll_info_g = { + .pll_reg = cpu_to_le16(0x9f0), + } + }, + .switch_clk_g = { + .switch_clk_info = cpu_to_le16(0x09), + .bbp_lmac_clk_reg_val = cpu_to_le16(0x1121), + .umac_clock_reg_config = cpu_to_le16(0x48), + .qspi_uart_clock_reg_config = cpu_to_le16(0x1211) + } + }, + { + .pll_config_g = { + .tapll_info_g = { + .pll_reg_1 = cpu_to_le16((TA_PLL_N_VAL_40 << 8)| + (TA_PLL_M_VAL_40)), + .pll_reg_2 = cpu_to_le16(TA_PLL_P_VAL_40), + }, + .pll960_info_g = { + .pll_reg_1 = cpu_to_le16((PLL960_P_VAL_40 << 8)| + (PLL960_N_VAL_40)), + .pll_reg_2 = cpu_to_le16(PLL960_M_VAL_40), + .pll_reg_3 = 0x0, + }, + .afepll_info_g = { + .pll_reg = cpu_to_le16(0x9f0), + } + }, + .switch_clk_g = { + .switch_clk_info = 0x0, + .bbp_lmac_clk_reg_val = 0x0, + .umac_clock_reg_config = 0x0, + .qspi_uart_clock_reg_config = 0x0 + } + }, + { + .pll_config_g = { + .tapll_info_g = { + .pll_reg_1 = cpu_to_le16((TA_PLL_N_VAL_40 << 8)| + (TA_PLL_M_VAL_40)), + .pll_reg_2 = cpu_to_le16(TA_PLL_P_VAL_40), + }, + .pll960_info_g = { + .pll_reg_1 = cpu_to_le16((PLL960_P_VAL_40 << 8)| + (PLL960_N_VAL_40)), + .pll_reg_2 = cpu_to_le16(PLL960_M_VAL_40), + .pll_reg_3 = 0x0, + }, + .afepll_info_g = { + .pll_reg = cpu_to_le16(0x9f0), + } + }, + .switch_clk_g = { + .switch_clk_info = 0x0, + .bbp_lmac_clk_reg_val = 0x0, + .umac_clock_reg_config = 0x0, + .qspi_uart_clock_reg_config = 0x0 + } + } }, + .buckboost_wakeup_cnt = 0x0, + .pmu_wakeup_wait = 0x0, + .shutdown_wait_time = 0x0, + .pmu_slp_clkout_sel = 0x0, + .wdt_prog_value = 0x0, + .wdt_soc_rst_delay = 0x0, + .dcdc_operation_mode = 0x0, + .soc_reset_wait_cnt = 0x0, + .waiting_time_at_fresh_sleep = 0x0, + .max_threshold_to_avoid_sleep = 0x0, + .beacon_resedue_alg_en = 0, +}; + +static struct bootup_params_9116 boot_params_9116_20 = { + .magic_number = cpu_to_le16(LOADED_TOKEN), + .valid = cpu_to_le32(VALID_20), + .device_clk_info_9116 = {{ + .pll_config_9116_g = { + .pll_ctrl_set_reg = cpu_to_le16(0xd518), + .pll_ctrl_clr_reg = cpu_to_le16(0x2ae7), + .pll_modem_conig_reg = cpu_to_le16(0x2000), + .soc_clk_config_reg = cpu_to_le16(0x0c18), + .adc_dac_strm1_config_reg = cpu_to_le16(0x1100), + .adc_dac_strm2_config_reg = cpu_to_le16(0x6600), + }, + .switch_clk_9116_g = { + .switch_clk_info = + cpu_to_le32((RSI_SWITCH_TASS_CLK | + RSI_SWITCH_WLAN_BBP_LMAC_CLK_REG | + RSI_SWITCH_BBP_LMAC_CLK_REG)), + .tass_clock_reg = cpu_to_le32(0x083C0503), + .wlan_bbp_lmac_clk_reg_val = cpu_to_le32(0x01042001), + .zbbt_bbp_lmac_clk_reg_val = cpu_to_le32(0x02010001), + .bbp_lmac_clk_en_val = cpu_to_le32(0x0000003b), + } + }, + }, +}; + +static struct bootup_params_9116 boot_params_9116_40 = { + .magic_number = cpu_to_le16(LOADED_TOKEN), + .valid = cpu_to_le32(VALID_40), + .device_clk_info_9116 = {{ + .pll_config_9116_g = { + .pll_ctrl_set_reg = cpu_to_le16(0xd518), + .pll_ctrl_clr_reg = cpu_to_le16(0x2ae7), + .pll_modem_conig_reg = cpu_to_le16(0x3000), + .soc_clk_config_reg = cpu_to_le16(0x0c18), + .adc_dac_strm1_config_reg = cpu_to_le16(0x0000), + .adc_dac_strm2_config_reg = cpu_to_le16(0x6600), + }, + .switch_clk_9116_g = { + .switch_clk_info = + cpu_to_le32((RSI_SWITCH_TASS_CLK | + RSI_SWITCH_WLAN_BBP_LMAC_CLK_REG | + RSI_SWITCH_BBP_LMAC_CLK_REG | + RSI_MODEM_CLK_160MHZ)), + .tass_clock_reg = cpu_to_le32(0x083C0503), + .wlan_bbp_lmac_clk_reg_val = cpu_to_le32(0x01042002), + .zbbt_bbp_lmac_clk_reg_val = cpu_to_le32(0x04010002), + .bbp_lmac_clk_en_val = cpu_to_le32(0x0000003b), + } + }, + }, +}; + +static u16 mcs[] = {13, 26, 39, 52, 78, 104, 117, 130}; + +/** + * rsi_set_default_parameters() - This function sets default parameters. + * @common: Pointer to the driver private structure. + * + * Return: none + */ +static void rsi_set_default_parameters(struct rsi_common *common) +{ + common->band = NL80211_BAND_2GHZ; + common->channel_width = BW_20MHZ; + common->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; + common->channel = 1; + common->min_rate = 0xffff; + common->fsm_state = FSM_CARD_NOT_READY; + common->iface_down = true; + common->endpoint = EP_2GHZ_20MHZ; + common->driver_mode = 1; /* End to end mode */ + common->lp_ps_handshake_mode = 0; /* Default no handShake mode*/ + common->ulp_ps_handshake_mode = 2; /* Default PKT handShake mode*/ + common->rf_power_val = 0; /* Default 1.9V */ + common->wlan_rf_power_mode = 0; + common->obm_ant_sel_val = 2; + common->beacon_interval = RSI_BEACON_INTERVAL; + common->dtim_cnt = RSI_DTIM_COUNT; + common->w9116_features.pll_mode = 0x0; + common->w9116_features.rf_type = 1; + common->w9116_features.wireless_mode = 0; + common->w9116_features.enable_ppe = 0; + common->w9116_features.afe_type = 1; + common->w9116_features.dpd = 0; + common->w9116_features.sifs_tx_enable = 0; + common->w9116_features.ps_options = 0; +} + +void init_bgscan_params(struct rsi_common *common) +{ + memset((u8 *)&common->bgscan, 0, sizeof(struct rsi_bgscan_params)); + common->bgscan.bgscan_threshold = RSI_DEF_BGSCAN_THRLD; + common->bgscan.roam_threshold = RSI_DEF_ROAM_THRLD; + common->bgscan.bgscan_periodicity = RSI_BGSCAN_PERIODICITY; + common->bgscan.num_bgscan_channels = 0; + common->bgscan.two_probe = 1; + common->bgscan.active_scan_duration = RSI_ACTIVE_SCAN_TIME; + common->bgscan.passive_scan_duration = RSI_PASSIVE_SCAN_TIME; +} + +/** + * rsi_set_contention_vals() - This function sets the contention values for the + * backoff procedure. + * @common: Pointer to the driver private structure. + * + * Return: None. + */ +static void rsi_set_contention_vals(struct rsi_common *common) +{ + u8 ii = 0; + + for (; ii < NUM_EDCA_QUEUES; ii++) { + common->tx_qinfo[ii].wme_params = + (((common->edca_params[ii].cw_min / 2) + + (common->edca_params[ii].aifs)) * + WMM_SHORT_SLOT_TIME + SIFS_DURATION); + common->tx_qinfo[ii].weight = common->tx_qinfo[ii].wme_params; + common->tx_qinfo[ii].pkt_contended = 0; + } +} + +/** + * rsi_send_internal_mgmt_frame() - This function sends management frames to + * firmware.Also schedules packet to queue + * for transmission. + * @common: Pointer to the driver private structure. + * @skb: Pointer to the socket buffer structure. + * + * Return: 0 on success, -1 on failure. + */ +static int rsi_send_internal_mgmt_frame(struct rsi_common *common, + struct sk_buff *skb) +{ + struct skb_info *tx_params; + struct rsi_cmd_desc *desc; + + if (skb == NULL) { + rsi_dbg(ERR_ZONE, "%s: Unable to allocate skb\n", __func__); + return -ENOMEM; + } + desc = (struct rsi_cmd_desc *)skb->data; + desc->desc_dword0.len_qno |= cpu_to_le16(DESC_IMMEDIATE_WAKEUP); + skb->priority = MGMT_SOFT_Q; + tx_params = (struct skb_info *)&IEEE80211_SKB_CB(skb)->driver_data; + tx_params->flags |= INTERNAL_MGMT_PKT; + skb_queue_tail(&common->tx_queue[MGMT_SOFT_Q], skb); + rsi_set_event(&common->tx_thread.event); + return 0; +} + +/** + * rsi_load_radio_caps() - This function is used to send radio capabilities + * values to firmware. + * @common: Pointer to the driver private structure. + * + * Return: 0 on success, corresponding negative error code on failure. + */ +static int rsi_load_radio_caps(struct rsi_common *common) +{ + struct rsi_radio_caps *radio_caps; + struct rsi_hw *adapter = common->priv; + u16 inx = 0; + u8 ii; + u8 radio_id = 0; + u16 gc[20] = {0xf0, 0xf0, 0xf0, 0xf0, + 0xf0, 0xf0, 0xf0, 0xf0, + 0xf0, 0xf0, 0xf0, 0xf0, + 0xf0, 0xf0, 0xf0, 0xf0, + 0xf0, 0xf0, 0xf0, 0xf0}; + struct sk_buff *skb; + u16 frame_len = sizeof(struct rsi_radio_caps); + + rsi_dbg(INFO_ZONE, "%s: Sending rate symbol req frame\n", __func__); + + skb = dev_alloc_skb(frame_len); + + if (!skb) { + rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n", + __func__); + return -ENOMEM; + } + + memset(skb->data, 0, frame_len); + radio_caps = (struct rsi_radio_caps *)skb->data; + + radio_caps->desc_dword0.frame_type = RADIO_CAPABILITIES; + radio_caps->channel_num = common->channel; + radio_caps->rf_model = RSI_RF_TYPE; + + radio_caps->radio_cfg_info = RSI_LMAC_CLOCK_80MHZ; + if (common->channel_width == BW_40MHZ) { + radio_caps->radio_cfg_info |= RSI_ENABLE_40MHZ; + + if (common->fsm_state == FSM_MAC_INIT_DONE) { + struct ieee80211_hw *hw = adapter->hw; + struct ieee80211_conf *conf = &hw->conf; + + if (conf_is_ht40_plus(conf)) { + radio_caps->ppe_ack_rate = + cpu_to_le16(LOWER_20_ENABLE | + (LOWER_20_ENABLE >> 12)); + } else if (conf_is_ht40_minus(conf)) { + radio_caps->ppe_ack_rate = + cpu_to_le16(UPPER_20_ENABLE | + (UPPER_20_ENABLE >> 12)); + } else { + radio_caps->ppe_ack_rate = + cpu_to_le16((BW_40MHZ << 12) | + FULL40M_ENABLE); + } + } + } + radio_caps->radio_info |= radio_id; + + if (adapter->device_model == RSI_DEV_9116 && + common->channel_width == BW_20MHZ) + radio_caps->radio_cfg_info &= ~0x3; + + radio_caps->sifs_tx_11n = cpu_to_le16(SIFS_TX_11N_VALUE); + radio_caps->sifs_tx_11b = cpu_to_le16(SIFS_TX_11B_VALUE); + radio_caps->slot_rx_11n = cpu_to_le16(SHORT_SLOT_VALUE); + radio_caps->ofdm_ack_tout = cpu_to_le16(OFDM_ACK_TOUT_VALUE); + radio_caps->cck_ack_tout = cpu_to_le16(CCK_ACK_TOUT_VALUE); + radio_caps->preamble_type = cpu_to_le16(LONG_PREAMBLE); + + for (ii = 0; ii < MAX_HW_QUEUES; ii++) { + radio_caps->qos_params[ii].cont_win_min_q = cpu_to_le16(3); + radio_caps->qos_params[ii].cont_win_max_q = cpu_to_le16(0x3f); + radio_caps->qos_params[ii].aifsn_val_q = cpu_to_le16(2); + radio_caps->qos_params[ii].txop_q = 0; + } + + for (ii = 0; ii < NUM_EDCA_QUEUES; ii++) { + if (common->edca_params[ii].cw_max > 0) { + radio_caps->qos_params[ii].cont_win_min_q = + cpu_to_le16(common->edca_params[ii].cw_min); + radio_caps->qos_params[ii].cont_win_max_q = + cpu_to_le16(common->edca_params[ii].cw_max); + radio_caps->qos_params[ii].aifsn_val_q = + cpu_to_le16(common->edca_params[ii].aifs << 8); + radio_caps->qos_params[ii].txop_q = + cpu_to_le16(common->edca_params[ii].txop); + } + } + + radio_caps->qos_params[BROADCAST_HW_Q].txop_q = cpu_to_le16(0xffff); + radio_caps->qos_params[MGMT_HW_Q].txop_q = 0; + radio_caps->qos_params[BEACON_HW_Q].txop_q = cpu_to_le16(0xffff); + + memcpy(&common->rate_pwr[0], &gc[0], 40); + for (ii = 0; ii < 20; ii++) + radio_caps->gcpd_per_rate[inx++] = + cpu_to_le16(common->rate_pwr[ii] & 0x00FF); + + rsi_set_len_qno(&radio_caps->desc_dword0.len_qno, + (frame_len - FRAME_DESC_SZ), RSI_WIFI_MGMT_Q); + + skb_put(skb, frame_len); + + return rsi_send_internal_mgmt_frame(common, skb); +} + +/** + * rsi_mgmt_pkt_to_core() - This function is the entry point for Mgmt module. + * @common: Pointer to the driver private structure. + * @msg: Pointer to received packet. + * @msg_len: Length of the received packet. + * @type: Type of received packet. + * + * Return: 0 on success, -1 on failure. + */ +static int rsi_mgmt_pkt_to_core(struct rsi_common *common, + u8 *msg, + s32 msg_len) +{ + struct rsi_hw *adapter = common->priv; + struct ieee80211_tx_info *info; + struct skb_info *rx_params; + u8 pad_bytes = msg[4]; + struct sk_buff *skb; + + if (!adapter->sc_nvifs) + return -ENOLINK; + + msg_len -= pad_bytes; + if (msg_len <= 0) { + rsi_dbg(MGMT_RX_ZONE, + "%s: Invalid rx msg of len = %d\n", + __func__, msg_len); + return -EINVAL; + } + + skb = dev_alloc_skb(msg_len); + if (!skb) + return -ENOMEM; + + skb_put_data(skb, + (u8 *)(msg + FRAME_DESC_SZ + pad_bytes), + msg_len); + + info = IEEE80211_SKB_CB(skb); + rx_params = (struct skb_info *)info->driver_data; + rx_params->rssi = rsi_get_rssi(msg); + rx_params->channel = rsi_get_channel(msg); + rsi_indicate_pkt_to_os(common, skb); + + return 0; +} + +/** + * rsi_hal_send_sta_notify_frame() - This function sends the station notify + * frame to firmware. + * @common: Pointer to the driver private structure. + * @opmode: Operating mode of device. + * @notify_event: Notification about station connection. + * @bssid: bssid. + * @qos_enable: Qos is enabled. + * @aid: Aid (unique for all STA). + * + * Return: status: 0 on success, corresponding negative error code on failure. + */ +int rsi_hal_send_sta_notify_frame(struct rsi_common *common, enum opmode opmode, + u8 notify_event, const unsigned char *bssid, + u8 qos_enable, u16 aid, u16 sta_id, + struct ieee80211_vif *vif) +{ + struct sk_buff *skb = NULL; + struct rsi_peer_notify *peer_notify; + u16 vap_id = ((struct vif_priv *)vif->drv_priv)->vap_id; + int status; + u16 frame_len = sizeof(struct rsi_peer_notify); + + rsi_dbg(MGMT_TX_ZONE, "%s: Sending sta notify frame\n", __func__); + + skb = dev_alloc_skb(frame_len); + + if (!skb) { + rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n", + __func__); + return -ENOMEM; + } + + memset(skb->data, 0, frame_len); + peer_notify = (struct rsi_peer_notify *)skb->data; + + if (opmode == RSI_OPMODE_STA) + peer_notify->command = cpu_to_le16(PEER_TYPE_AP << 1); + else if (opmode == RSI_OPMODE_AP) + peer_notify->command = cpu_to_le16(PEER_TYPE_STA << 1); + + switch (notify_event) { + case STA_CONNECTED: + peer_notify->command |= cpu_to_le16(RSI_ADD_PEER); + break; + case STA_DISCONNECTED: + peer_notify->command |= cpu_to_le16(RSI_DELETE_PEER); + break; + default: + break; + } + + peer_notify->command |= cpu_to_le16((aid & 0xfff) << 4); + ether_addr_copy(peer_notify->mac_addr, bssid); + peer_notify->mpdu_density = cpu_to_le16(RSI_MPDU_DENSITY); + peer_notify->sta_flags = cpu_to_le32((qos_enable) ? 1 : 0); + + rsi_set_len_qno(&peer_notify->desc.desc_dword0.len_qno, + (frame_len - FRAME_DESC_SZ), + RSI_WIFI_MGMT_Q); + peer_notify->desc.desc_dword0.frame_type = PEER_NOTIFY; + peer_notify->desc.desc_dword3.qid_tid = sta_id; + peer_notify->desc.desc_dword3.sta_id = vap_id; + + skb_put(skb, frame_len); + + status = rsi_send_internal_mgmt_frame(common, skb); + + if ((vif->type == NL80211_IFTYPE_STATION) && + (!status && qos_enable)) { + rsi_set_contention_vals(common); + status = rsi_load_radio_caps(common); + } + return status; +} + +/** + * rsi_send_aggregation_params_frame() - This function sends the ampdu + * indication frame to firmware. + * @common: Pointer to the driver private structure. + * @tid: traffic identifier. + * @ssn: ssn. + * @buf_size: buffer size. + * @event: notification about station connection. + * + * Return: 0 on success, corresponding negative error code on failure. + */ +int rsi_send_aggregation_params_frame(struct rsi_common *common, + u16 tid, + u16 ssn, + u8 buf_size, + u8 event, + u8 sta_id) +{ + struct sk_buff *skb = NULL; + struct rsi_aggr_params *aggr_params; + u16 frame_len = sizeof(struct rsi_aggr_params); + + skb = dev_alloc_skb(frame_len); + + if (!skb) { + rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n", + __func__); + return -ENOMEM; + } + + memset(skb->data, 0, frame_len); + aggr_params = (struct rsi_aggr_params *)skb->data; + + rsi_dbg(MGMT_TX_ZONE, "%s: Sending AMPDU indication frame\n", __func__); + + rsi_set_len_qno(&aggr_params->desc_dword0.len_qno, 0, RSI_WIFI_MGMT_Q); + aggr_params->desc_dword0.frame_type = AMPDU_IND; + + aggr_params->aggr_params = tid & RSI_AGGR_PARAMS_TID_MASK; + aggr_params->peer_id = sta_id; + if (event == STA_TX_ADDBA_DONE) { + aggr_params->seq_start = cpu_to_le16(ssn); + aggr_params->baw_size = cpu_to_le16(buf_size); + aggr_params->aggr_params |= RSI_AGGR_PARAMS_START; + } else if (event == STA_RX_ADDBA_DONE) { + aggr_params->seq_start = cpu_to_le16(ssn); + aggr_params->aggr_params |= (RSI_AGGR_PARAMS_START | + RSI_AGGR_PARAMS_RX_AGGR); + } else if (event == STA_RX_DELBA) { + aggr_params->aggr_params |= RSI_AGGR_PARAMS_RX_AGGR; + } + + skb_put(skb, frame_len); + + return rsi_send_internal_mgmt_frame(common, skb); +} + +/** + * rsi_program_bb_rf() - This function starts base band and RF programming. + * This is called after initial configurations are done. + * @common: Pointer to the driver private structure. + * + * Return: 0 on success, corresponding negative error code on failure. + */ +static int rsi_program_bb_rf(struct rsi_common *common) +{ + struct sk_buff *skb; + struct rsi_bb_rf_prog *bb_rf_prog; + u16 frame_len = sizeof(struct rsi_bb_rf_prog); + + rsi_dbg(MGMT_TX_ZONE, "%s: Sending program BB/RF frame\n", __func__); + + skb = dev_alloc_skb(frame_len); + if (!skb) { + rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n", + __func__); + return -ENOMEM; + } + + memset(skb->data, 0, frame_len); + bb_rf_prog = (struct rsi_bb_rf_prog *)skb->data; + + rsi_set_len_qno(&bb_rf_prog->desc_dword0.len_qno, 0, RSI_WIFI_MGMT_Q); + bb_rf_prog->desc_dword0.frame_type = BBP_PROG_IN_TA; + bb_rf_prog->endpoint = common->endpoint; + bb_rf_prog->rf_power_mode = common->wlan_rf_power_mode; + + if (common->rf_reset) { + bb_rf_prog->flags = cpu_to_le16(RF_RESET_ENABLE); + rsi_dbg(MGMT_TX_ZONE, "%s: ===> RF RESET REQUEST SENT <===\n", + __func__); + common->rf_reset = 0; + } + common->bb_rf_prog_count = 1; + bb_rf_prog->flags |= cpu_to_le16(PUT_BBP_RESET | BBP_REG_WRITE | + (RSI_RF_TYPE << 4)); + skb_put(skb, frame_len); + + return rsi_send_internal_mgmt_frame(common, skb); +} + +/** + * rsi_set_vap_capabilities() - This function send vap capability to firmware. + * @common: Pointer to the driver private structure. + * @opmode: Operating mode of device. + * + * Return: 0 on success, corresponding negative error code on failure. + */ +int rsi_set_vap_capabilities(struct rsi_common *common, + enum opmode mode, + u8 *mac_addr, + u8 vap_id, + u8 vap_status) +{ + struct sk_buff *skb = NULL; + struct rsi_vap_caps *vap_caps; + struct rsi_hw *adapter = common->priv; + struct ieee80211_hw *hw = adapter->hw; + struct ieee80211_conf *conf = &hw->conf; + u16 frame_len = sizeof(struct rsi_vap_caps); + + rsi_dbg(MGMT_TX_ZONE, "%s: Sending VAP capabilities frame\n", __func__); + + skb = dev_alloc_skb(frame_len); + if (!skb) { + rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n", + __func__); + return -ENOMEM; + } + + memset(skb->data, 0, frame_len); + vap_caps = (struct rsi_vap_caps *)skb->data; + + rsi_set_len_qno(&vap_caps->desc_dword0.len_qno, + (frame_len - FRAME_DESC_SZ), RSI_WIFI_MGMT_Q); + vap_caps->desc_dword0.frame_type = VAP_CAPABILITIES; + vap_caps->status = vap_status; + vap_caps->vif_type = mode; + vap_caps->channel_bw = common->channel_width; + vap_caps->vap_id = vap_id; + vap_caps->radioid_macid = ((common->mac_id & 0xf) << 4) | + (common->radio_id & 0xf); + + memcpy(vap_caps->mac_addr, mac_addr, IEEE80211_ADDR_LEN); + vap_caps->keep_alive_period = cpu_to_le16(90); + vap_caps->frag_threshold = cpu_to_le16(IEEE80211_MAX_FRAG_THRESHOLD); + + vap_caps->rts_threshold = cpu_to_le16(common->rts_threshold); + + if (common->band == NL80211_BAND_5GHZ) { + vap_caps->default_ctrl_rate = cpu_to_le16(RSI_RATE_6); + vap_caps->default_mgmt_rate = cpu_to_le32(RSI_RATE_6); + } else { + vap_caps->default_ctrl_rate = cpu_to_le16(RSI_RATE_1); + vap_caps->default_mgmt_rate = cpu_to_le32(RSI_RATE_1); + } + if (conf_is_ht40(conf)) { + if (conf_is_ht40_minus(conf)) + vap_caps->ctrl_rate_flags = + cpu_to_le16(UPPER_20_ENABLE); + else if (conf_is_ht40_plus(conf)) + vap_caps->ctrl_rate_flags = + cpu_to_le16(LOWER_20_ENABLE); + else + vap_caps->ctrl_rate_flags = + cpu_to_le16(FULL40M_ENABLE); + } + + vap_caps->default_data_rate = 0; + vap_caps->beacon_interval = cpu_to_le16(common->beacon_interval); + vap_caps->dtim_period = cpu_to_le16(common->dtim_cnt); + + skb_put(skb, frame_len); + + return rsi_send_internal_mgmt_frame(common, skb); +} + +/** + * rsi_hal_load_key() - This function is used to load keys within the firmware. + * @common: Pointer to the driver private structure. + * @data: Pointer to the key data. + * @key_len: Key length to be loaded. + * @key_type: Type of key: GROUP/PAIRWISE. + * @key_id: Key index. + * @cipher: Type of cipher used. + * + * Return: 0 on success, -1 on failure. + */ +int rsi_hal_load_key(struct rsi_common *common, + u8 *data, + u16 key_len, + u8 key_type, + u8 key_id, + u32 cipher, + s16 sta_id, + struct ieee80211_vif *vif) +{ + struct sk_buff *skb = NULL; + struct rsi_set_key *set_key; + u16 key_descriptor = 0; + u16 frame_len = sizeof(struct rsi_set_key); + + rsi_dbg(MGMT_TX_ZONE, "%s: Sending load key frame\n", __func__); + + skb = dev_alloc_skb(frame_len); + if (!skb) { + rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n", + __func__); + return -ENOMEM; + } + + memset(skb->data, 0, frame_len); + set_key = (struct rsi_set_key *)skb->data; + + if (key_type == RSI_GROUP_KEY) { + key_descriptor = RSI_KEY_TYPE_BROADCAST; + if (vif->type == NL80211_IFTYPE_AP) + key_descriptor |= RSI_KEY_MODE_AP; + } + if ((cipher == WLAN_CIPHER_SUITE_WEP40) || + (cipher == WLAN_CIPHER_SUITE_WEP104)) { + key_id = 0; + key_descriptor |= RSI_WEP_KEY; + if (key_len >= 13) + key_descriptor |= RSI_WEP_KEY_104; + } else if (cipher != KEY_TYPE_CLEAR) { + key_descriptor |= RSI_CIPHER_WPA; + if (cipher == WLAN_CIPHER_SUITE_TKIP) + key_descriptor |= RSI_CIPHER_TKIP; + } + key_descriptor |= RSI_PROTECT_DATA_FRAMES; + key_descriptor |= (key_id << RSI_KEY_ID_OFFSET); + + rsi_set_len_qno(&set_key->desc_dword0.len_qno, + (frame_len - FRAME_DESC_SZ), RSI_WIFI_MGMT_Q); + set_key->desc_dword0.frame_type = SET_KEY_REQ; + set_key->key_desc = cpu_to_le16(key_descriptor); + set_key->sta_id = sta_id; + + if (data) { + if ((cipher == WLAN_CIPHER_SUITE_WEP40) || + (cipher == WLAN_CIPHER_SUITE_WEP104)) { + memcpy(&set_key->key[key_id][1], data, key_len * 2); + } else { + memcpy(&set_key->key[0][0], data, key_len); + } + memcpy(set_key->tx_mic_key, &data[16], 8); + memcpy(set_key->rx_mic_key, &data[24], 8); + } else { + memset(&set_key[FRAME_DESC_SZ], 0, frame_len - FRAME_DESC_SZ); + } + + skb_put(skb, frame_len); + + return rsi_send_internal_mgmt_frame(common, skb); +} + +/* + * This function sends the common device configuration parameters to device. + * This frame includes the useful information to make device works on + * specific operating mode. + */ +static int rsi_send_common_dev_params(struct rsi_common *common) +{ + struct sk_buff *skb; + u16 frame_len; + struct rsi_config_vals *dev_cfgs; + + frame_len = sizeof(struct rsi_config_vals); + + rsi_dbg(MGMT_TX_ZONE, "Sending common device config params\n"); + skb = dev_alloc_skb(frame_len); + if (!skb) { + rsi_dbg(ERR_ZONE, "%s: Unable to allocate skb\n", __func__); + return -ENOMEM; + } + + memset(skb->data, 0, frame_len); + + dev_cfgs = (struct rsi_config_vals *)skb->data; + memset(dev_cfgs, 0, (sizeof(struct rsi_config_vals))); + + rsi_set_len_qno(&dev_cfgs->len_qno, (frame_len - FRAME_DESC_SZ), + RSI_COEX_Q); + dev_cfgs->pkt_type = COMMON_DEV_CONFIG; + + dev_cfgs->lp_ps_handshake = common->lp_ps_handshake_mode; + dev_cfgs->ulp_ps_handshake = common->ulp_ps_handshake_mode; + + dev_cfgs->unused_ulp_gpio = RSI_UNUSED_ULP_GPIO_BITMAP; + dev_cfgs->unused_soc_gpio_bitmap = + cpu_to_le32(RSI_UNUSED_SOC_GPIO_BITMAP); + + dev_cfgs->opermode = common->oper_mode; + dev_cfgs->wlan_rf_pwr_mode = common->wlan_rf_power_mode; + dev_cfgs->driver_mode = common->driver_mode; + dev_cfgs->region_code = NL80211_DFS_FCC; + dev_cfgs->antenna_sel_val = common->obm_ant_sel_val; + + skb_put(skb, frame_len); + + return rsi_send_internal_mgmt_frame(common, skb); +} + +/* + * rsi_load_bootup_params() - This function send bootup params to the firmware. + * @common: Pointer to the driver private structure. + * + * Return: 0 on success, corresponding error code on failure. + */ +static int rsi_load_bootup_params(struct rsi_common *common) +{ + struct sk_buff *skb; + struct rsi_boot_params *boot_params; + + rsi_dbg(MGMT_TX_ZONE, "%s: Sending boot params frame\n", __func__); + skb = dev_alloc_skb(sizeof(struct rsi_boot_params)); + if (!skb) { + rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n", + __func__); + return -ENOMEM; + } + + memset(skb->data, 0, sizeof(struct rsi_boot_params)); + boot_params = (struct rsi_boot_params *)skb->data; + + rsi_dbg(MGMT_TX_ZONE, "%s:\n", __func__); + + if (common->channel_width == BW_40MHZ) { + memcpy(&boot_params->bootup_params, + &boot_params_40, + sizeof(struct bootup_params)); + rsi_dbg(MGMT_TX_ZONE, "%s: Packet 40MHZ <=== %d\n", __func__, + UMAC_CLK_40BW); + boot_params->desc_word[7] = cpu_to_le16(UMAC_CLK_40BW); + } else { + memcpy(&boot_params->bootup_params, + &boot_params_20, + sizeof(struct bootup_params)); + if (boot_params_20.valid != cpu_to_le32(VALID_20)) { + boot_params->desc_word[7] = cpu_to_le16(UMAC_CLK_20BW); + rsi_dbg(MGMT_TX_ZONE, + "%s: Packet 20MHZ <=== %d\n", __func__, + UMAC_CLK_20BW); + } else { + boot_params->desc_word[7] = cpu_to_le16(UMAC_CLK_40MHZ); + rsi_dbg(MGMT_TX_ZONE, + "%s: Packet 20MHZ <=== %d\n", __func__, + UMAC_CLK_40MHZ); + } + } + + /** + * Bit{0:11} indicates length of the Packet + * Bit{12:15} indicates host queue number + */ + boot_params->desc_word[0] = cpu_to_le16(sizeof(struct bootup_params) | + (RSI_WIFI_MGMT_Q << 12)); + boot_params->desc_word[1] = cpu_to_le16(BOOTUP_PARAMS_REQUEST); + + skb_put(skb, sizeof(struct rsi_boot_params)); + + return rsi_send_internal_mgmt_frame(common, skb); +} + +static int rsi_load_9116_bootup_params(struct rsi_common *common) +{ + struct sk_buff *skb; + struct rsi_boot_params_9116 *boot_params; + + rsi_dbg(MGMT_TX_ZONE, "%s: Sending boot params frame\n", __func__); + + skb = dev_alloc_skb(sizeof(struct rsi_boot_params_9116)); + if (!skb) + return -ENOMEM; + memset(skb->data, 0, sizeof(struct rsi_boot_params)); + boot_params = (struct rsi_boot_params_9116 *)skb->data; + + if (common->channel_width == BW_40MHZ) { + memcpy(&boot_params->bootup_params, + &boot_params_9116_40, + sizeof(struct bootup_params_9116)); + rsi_dbg(MGMT_TX_ZONE, "%s: Packet 40MHZ <=== %d\n", __func__, + UMAC_CLK_40BW); + boot_params->umac_clk = cpu_to_le16(UMAC_CLK_40BW); + } else { + memcpy(&boot_params->bootup_params, + &boot_params_9116_20, + sizeof(struct bootup_params_9116)); + if (boot_params_20.valid != cpu_to_le32(VALID_20)) { + boot_params->umac_clk = cpu_to_le16(UMAC_CLK_20BW); + rsi_dbg(MGMT_TX_ZONE, + "%s: Packet 20MHZ <=== %d\n", __func__, + UMAC_CLK_20BW); + } else { + boot_params->umac_clk = cpu_to_le16(UMAC_CLK_40MHZ); + rsi_dbg(MGMT_TX_ZONE, + "%s: Packet 20MHZ <=== %d\n", __func__, + UMAC_CLK_40MHZ); + } + } + rsi_set_len_qno(&boot_params->desc_dword0.len_qno, + sizeof(struct bootup_params_9116), RSI_WIFI_MGMT_Q); + boot_params->desc_dword0.frame_type = BOOTUP_PARAMS_REQUEST; + skb_put(skb, sizeof(struct rsi_boot_params_9116)); + + return rsi_send_internal_mgmt_frame(common, skb); +} + +/** + * rsi_send_reset_mac() - This function prepares reset MAC request and sends an + * internal management frame to indicate it to firmware. + * @common: Pointer to the driver private structure. + * + * Return: 0 on success, corresponding error code on failure. + */ +static int rsi_send_reset_mac(struct rsi_common *common) +{ + struct sk_buff *skb; + struct rsi_mac_frame *mgmt_frame; + + rsi_dbg(MGMT_TX_ZONE, "%s: Sending reset MAC frame\n", __func__); + + skb = dev_alloc_skb(FRAME_DESC_SZ); + if (!skb) { + rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n", + __func__); + return -ENOMEM; + } + + memset(skb->data, 0, FRAME_DESC_SZ); + mgmt_frame = (struct rsi_mac_frame *)skb->data; + + mgmt_frame->desc_word[0] = cpu_to_le16(RSI_WIFI_MGMT_Q << 12); + mgmt_frame->desc_word[1] = cpu_to_le16(RESET_MAC_REQ); + mgmt_frame->desc_word[4] = cpu_to_le16(RETRY_COUNT << 8); + +#define RSI_9116_DEF_TA_AGGR 3 + if (common->priv->device_model == RSI_DEV_9116) + mgmt_frame->desc_word[3] |= + cpu_to_le16(RSI_9116_DEF_TA_AGGR << 8); + + skb_put(skb, FRAME_DESC_SZ); + + return rsi_send_internal_mgmt_frame(common, skb); +} + +/** + * rsi_band_check() - This function programs the band + * @common: Pointer to the driver private structure. + * + * Return: 0 on success, corresponding error code on failure. + */ +int rsi_band_check(struct rsi_common *common, + struct ieee80211_channel *curchan) +{ + struct rsi_hw *adapter = common->priv; + struct ieee80211_hw *hw = adapter->hw; + u8 prev_bw = common->channel_width; + u8 prev_ep = common->endpoint; + int status = 0; + + if (common->band != curchan->band) { + common->rf_reset = 1; + common->band = curchan->band; + } + + if ((hw->conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT) || + (hw->conf.chandef.width == NL80211_CHAN_WIDTH_20)) + common->channel_width = BW_20MHZ; + else + common->channel_width = BW_40MHZ; + + if (common->band == NL80211_BAND_2GHZ) { + if (common->channel_width) + common->endpoint = EP_2GHZ_40MHZ; + else + common->endpoint = EP_2GHZ_20MHZ; + } else { + if (common->channel_width) + common->endpoint = EP_5GHZ_40MHZ; + else + common->endpoint = EP_5GHZ_20MHZ; + } + + if (common->endpoint != prev_ep) { + status = rsi_program_bb_rf(common); + if (status) + return status; + } + + if (common->channel_width != prev_bw) { + if (adapter->device_model == RSI_DEV_9116) + status = rsi_load_9116_bootup_params(common); + else + status = rsi_load_bootup_params(common); + if (status) + return status; + + status = rsi_load_radio_caps(common); + if (status) + return status; + } + + return status; +} + +/** + * rsi_set_channel() - This function programs the channel. + * @common: Pointer to the driver private structure. + * @channel: Channel value to be set. + * + * Return: 0 on success, corresponding error code on failure. + */ +int rsi_set_channel(struct rsi_common *common, + struct ieee80211_channel *channel) +{ + struct sk_buff *skb = NULL; + struct rsi_chan_config *chan_cfg; + u16 frame_len = sizeof(struct rsi_chan_config); + + rsi_dbg(MGMT_TX_ZONE, + "%s: Sending scan req frame\n", __func__); + + skb = dev_alloc_skb(frame_len); + if (!skb) { + rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n", + __func__); + return -ENOMEM; + } + + if (!channel) { + dev_kfree_skb(skb); + return 0; + } + memset(skb->data, 0, frame_len); + chan_cfg = (struct rsi_chan_config *)skb->data; + + rsi_set_len_qno(&chan_cfg->desc_dword0.len_qno, 0, RSI_WIFI_MGMT_Q); + chan_cfg->desc_dword0.frame_type = SCAN_REQUEST; + chan_cfg->channel_number = channel->hw_value; + chan_cfg->antenna_gain_offset_2g = channel->max_antenna_gain; + chan_cfg->antenna_gain_offset_5g = channel->max_antenna_gain; + chan_cfg->region_rftype = (RSI_RF_TYPE & 0xf) << 4; + + if ((channel->flags & IEEE80211_CHAN_NO_IR) || + (channel->flags & IEEE80211_CHAN_RADAR)) { + chan_cfg->antenna_gain_offset_2g |= RSI_CHAN_RADAR; + } else { + if (common->tx_power < channel->max_power) + chan_cfg->tx_power = cpu_to_le16(common->tx_power); + else + chan_cfg->tx_power = cpu_to_le16(channel->max_power); + } + chan_cfg->region_rftype |= (common->priv->dfs_region & 0xf); + + if (common->channel_width == BW_40MHZ) + chan_cfg->channel_width = 0x1; + + common->channel = channel->hw_value; + + skb_put(skb, frame_len); + + return rsi_send_internal_mgmt_frame(common, skb); +} + +/** + * rsi_send_radio_params_update() - This function sends the radio + * parameters update to device + * @common: Pointer to the driver private structure. + * @channel: Channel value to be set. + * + * Return: 0 on success, corresponding error code on failure. + */ +int rsi_send_radio_params_update(struct rsi_common *common) +{ + struct rsi_mac_frame *cmd_frame; + struct sk_buff *skb = NULL; + + rsi_dbg(MGMT_TX_ZONE, + "%s: Sending Radio Params update frame\n", __func__); + + skb = dev_alloc_skb(FRAME_DESC_SZ); + if (!skb) { + rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n", + __func__); + return -ENOMEM; + } + + memset(skb->data, 0, FRAME_DESC_SZ); + cmd_frame = (struct rsi_mac_frame *)skb->data; + + cmd_frame->desc_word[0] = cpu_to_le16(RSI_WIFI_MGMT_Q << 12); + cmd_frame->desc_word[1] = cpu_to_le16(RADIO_PARAMS_UPDATE); + cmd_frame->desc_word[3] = cpu_to_le16(BIT(0)); + + cmd_frame->desc_word[3] |= cpu_to_le16(common->tx_power << 8); + + skb_put(skb, FRAME_DESC_SZ); + + return rsi_send_internal_mgmt_frame(common, skb); +} + +/* This function programs the threshold. */ +int rsi_send_vap_dynamic_update(struct rsi_common *common) +{ + struct sk_buff *skb; + struct rsi_dynamic_s *dynamic_frame; + + rsi_dbg(MGMT_TX_ZONE, + "%s: Sending vap update indication frame\n", __func__); + + skb = dev_alloc_skb(sizeof(struct rsi_dynamic_s)); + if (!skb) + return -ENOMEM; + + memset(skb->data, 0, sizeof(struct rsi_dynamic_s)); + dynamic_frame = (struct rsi_dynamic_s *)skb->data; + rsi_set_len_qno(&dynamic_frame->desc_dword0.len_qno, + sizeof(dynamic_frame->frame_body), RSI_WIFI_MGMT_Q); + + dynamic_frame->desc_dword0.frame_type = VAP_DYNAMIC_UPDATE; + dynamic_frame->desc_dword2.pkt_info = + cpu_to_le32(common->rts_threshold); + + if (common->wow_flags & RSI_WOW_ENABLED) { + /* Beacon miss threshold */ + dynamic_frame->desc_dword3.token = + cpu_to_le16(RSI_BCN_MISS_THRESHOLD); + dynamic_frame->frame_body.keep_alive_period = + cpu_to_le16(RSI_WOW_KEEPALIVE); + } else { + dynamic_frame->frame_body.keep_alive_period = + cpu_to_le16(RSI_DEF_KEEPALIVE); + } + + dynamic_frame->desc_dword3.sta_id = 0; /* vap id */ + + skb_put(skb, sizeof(struct rsi_dynamic_s)); + + return rsi_send_internal_mgmt_frame(common, skb); +} + +/** + * rsi_compare() - This function is used to compare two integers + * @a: pointer to the first integer + * @b: pointer to the second integer + * + * Return: 0 if both are equal, -1 if the first is smaller, else 1 + */ +static int rsi_compare(const void *a, const void *b) +{ + u16 _a = *(const u16 *)(a); + u16 _b = *(const u16 *)(b); + + if (_a > _b) + return -1; + + if (_a < _b) + return 1; + + return 0; +} + +/** + * rsi_map_rates() - This function is used to map selected rates to hw rates. + * @rate: The standard rate to be mapped. + * @offset: Offset that will be returned. + * + * Return: 0 if it is a mcs rate, else 1 + */ +static bool rsi_map_rates(u16 rate, int *offset) +{ + int kk; + for (kk = 0; kk < ARRAY_SIZE(rsi_mcsrates); kk++) { + if (rate == mcs[kk]) { + *offset = kk; + return false; + } + } + + for (kk = 0; kk < ARRAY_SIZE(rsi_rates); kk++) { + if (rate == rsi_rates[kk].bitrate / 5) { + *offset = kk; + break; + } + } + return true; +} + +/** + * rsi_send_auto_rate_request() - This function is to set rates for connection + * and send autorate request to firmware. + * @common: Pointer to the driver private structure. + * + * Return: 0 on success, corresponding error code on failure. + */ +static int rsi_send_auto_rate_request(struct rsi_common *common, + struct ieee80211_sta *sta, + u16 sta_id, + struct ieee80211_vif *vif) +{ + struct sk_buff *skb; + struct rsi_auto_rate *auto_rate; + int ii = 0, jj = 0, kk = 0; + struct ieee80211_hw *hw = common->priv->hw; + u8 band = hw->conf.chandef.chan->band; + u8 num_supported_rates = 0; + u8 rate_table_offset, rate_offset = 0; + u32 rate_bitmap; + u16 *selected_rates, min_rate; + bool is_ht = false, is_sgi = false; + u16 frame_len = sizeof(struct rsi_auto_rate); + + rsi_dbg(MGMT_TX_ZONE, + "%s: Sending auto rate request frame\n", __func__); + + skb = dev_alloc_skb(frame_len); + if (!skb) { + rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n", + __func__); + return -ENOMEM; + } + + memset(skb->data, 0, frame_len); + selected_rates = kzalloc(2 * RSI_TBL_SZ, GFP_KERNEL); + if (!selected_rates) { + rsi_dbg(ERR_ZONE, "%s: Failed in allocation of mem\n", + __func__); + dev_kfree_skb(skb); + return -ENOMEM; + } + + auto_rate = (struct rsi_auto_rate *)skb->data; + + auto_rate->aarf_rssi = cpu_to_le16(((u16)3 << 6) | (u16)(18 & 0x3f)); + auto_rate->collision_tolerance = cpu_to_le16(3); + auto_rate->failure_limit = cpu_to_le16(3); + auto_rate->initial_boundary = cpu_to_le16(3); + auto_rate->max_threshold_limt = cpu_to_le16(27); + + auto_rate->desc.desc_dword0.frame_type = AUTO_RATE_IND; + + if (common->channel_width == BW_40MHZ) + auto_rate->desc.desc_dword3.qid_tid = BW_40MHZ; + auto_rate->desc.desc_dword3.sta_id = sta_id; + + if (vif->type == NL80211_IFTYPE_STATION) { + rate_bitmap = common->bitrate_mask[band]; + is_ht = common->vif_info[0].is_ht; + is_sgi = common->vif_info[0].sgi; + } else { + rate_bitmap = sta->supp_rates[band]; + is_ht = sta->ht_cap.ht_supported; + if ((sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_20) || + (sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_40)) + is_sgi = true; + } + + if (band == NL80211_BAND_2GHZ) { + if ((rate_bitmap == 0) && (is_ht)) + min_rate = RSI_RATE_MCS0; + else + min_rate = RSI_RATE_1; + rate_table_offset = 0; + } else { + if ((rate_bitmap == 0) && (is_ht)) + min_rate = RSI_RATE_MCS0; + else + min_rate = RSI_RATE_6; + rate_table_offset = 4; + } + + for (ii = 0, jj = 0; + ii < (ARRAY_SIZE(rsi_rates) - rate_table_offset); ii++) { + if (rate_bitmap & BIT(ii)) { + selected_rates[jj++] = + (rsi_rates[ii + rate_table_offset].bitrate / 5); + rate_offset++; + } + } + num_supported_rates = jj; + + if (is_ht) { + for (ii = 0; ii < ARRAY_SIZE(mcs); ii++) + selected_rates[jj++] = mcs[ii]; + num_supported_rates += ARRAY_SIZE(mcs); + rate_offset += ARRAY_SIZE(mcs); + } + + sort(selected_rates, jj, sizeof(u16), &rsi_compare, NULL); + + /* mapping the rates to RSI rates */ + for (ii = 0; ii < jj; ii++) { + if (rsi_map_rates(selected_rates[ii], &kk)) { + auto_rate->supported_rates[ii] = + cpu_to_le16(rsi_rates[kk].hw_value); + } else { + auto_rate->supported_rates[ii] = + cpu_to_le16(rsi_mcsrates[kk]); + } + } + + /* loading HT rates in the bottom half of the auto rate table */ + if (is_ht) { + for (ii = rate_offset, kk = ARRAY_SIZE(rsi_mcsrates) - 1; + ii < rate_offset + 2 * ARRAY_SIZE(rsi_mcsrates); ii++) { + if (is_sgi || conf_is_ht40(&common->priv->hw->conf)) + auto_rate->supported_rates[ii++] = + cpu_to_le16(rsi_mcsrates[kk] | BIT(9)); + else + auto_rate->supported_rates[ii++] = + cpu_to_le16(rsi_mcsrates[kk]); + auto_rate->supported_rates[ii] = + cpu_to_le16(rsi_mcsrates[kk--]); + } + + for (; ii < (RSI_TBL_SZ - 1); ii++) { + auto_rate->supported_rates[ii] = + cpu_to_le16(rsi_mcsrates[0]); + } + } + + for (; ii < RSI_TBL_SZ; ii++) + auto_rate->supported_rates[ii] = cpu_to_le16(min_rate); + + auto_rate->num_supported_rates = cpu_to_le16(num_supported_rates * 2); + auto_rate->moderate_rate_inx = cpu_to_le16(num_supported_rates / 2); + num_supported_rates *= 2; + + rsi_set_len_qno(&auto_rate->desc.desc_dword0.len_qno, + (frame_len - FRAME_DESC_SZ), RSI_WIFI_MGMT_Q); + + skb_put(skb, frame_len); + kfree(selected_rates); + + return rsi_send_internal_mgmt_frame(common, skb); +} + +/** + * rsi_inform_bss_status() - This function informs about bss status with the + * help of sta notify params by sending an internal + * management frame to firmware. + * @common: Pointer to the driver private structure. + * @status: Bss status type. + * @bssid: Bssid. + * @qos_enable: Qos is enabled. + * @aid: Aid (unique for all STAs). + * + * Return: None. + */ +void rsi_inform_bss_status(struct rsi_common *common, + enum opmode opmode, + u8 status, + const u8 *addr, + u8 qos_enable, + u16 aid, + struct ieee80211_sta *sta, + u16 sta_id, + u16 assoc_cap, + struct ieee80211_vif *vif) +{ + if (status) { + if (opmode == RSI_OPMODE_STA) + common->hw_data_qs_blocked = true; + rsi_hal_send_sta_notify_frame(common, + opmode, + STA_CONNECTED, + addr, + qos_enable, + aid, sta_id, + vif); + if (common->min_rate == 0xffff) + rsi_send_auto_rate_request(common, sta, sta_id, vif); + if (opmode == RSI_OPMODE_STA && + !(assoc_cap & WLAN_CAPABILITY_PRIVACY) && + !rsi_send_block_unblock_frame(common, false)) + common->hw_data_qs_blocked = false; + } else { + if (opmode == RSI_OPMODE_STA) + common->hw_data_qs_blocked = true; + + if (!(common->wow_flags & RSI_WOW_ENABLED)) + rsi_hal_send_sta_notify_frame(common, opmode, + STA_DISCONNECTED, addr, + qos_enable, aid, sta_id, + vif); + if (opmode == RSI_OPMODE_STA) + rsi_send_block_unblock_frame(common, true); + } +} + +/** + * rsi_eeprom_read() - This function sends a frame to read the mac address + * from the eeprom. + * @common: Pointer to the driver private structure. + * + * Return: 0 on success, -1 on failure. + */ +static int rsi_eeprom_read(struct rsi_common *common) +{ + struct rsi_eeprom_read_frame *mgmt_frame; + struct rsi_hw *adapter = common->priv; + struct sk_buff *skb; + + rsi_dbg(MGMT_TX_ZONE, "%s: Sending EEPROM read req frame\n", __func__); + + skb = dev_alloc_skb(FRAME_DESC_SZ); + if (!skb) { + rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n", + __func__); + return -ENOMEM; + } + + memset(skb->data, 0, FRAME_DESC_SZ); + mgmt_frame = (struct rsi_eeprom_read_frame *)skb->data; + + /* FrameType */ + rsi_set_len_qno(&mgmt_frame->len_qno, 0, RSI_WIFI_MGMT_Q); + mgmt_frame->pkt_type = EEPROM_READ; + + /* Number of bytes to read */ + mgmt_frame->pkt_info = + cpu_to_le32((adapter->eeprom.length << RSI_EEPROM_LEN_OFFSET) & + RSI_EEPROM_LEN_MASK); + mgmt_frame->pkt_info |= cpu_to_le32((3 << RSI_EEPROM_HDR_SIZE_OFFSET) & + RSI_EEPROM_HDR_SIZE_MASK); + + /* Address to read */ + mgmt_frame->eeprom_offset = cpu_to_le32(adapter->eeprom.offset); + + skb_put(skb, FRAME_DESC_SZ); + + return rsi_send_internal_mgmt_frame(common, skb); +} + +/** + * This function sends a frame to block/unblock + * data queues in the firmware + * + * @param common Pointer to the driver private structure. + * @param block event - block if true, unblock if false + * @return 0 on success, -1 on failure. + */ +int rsi_send_block_unblock_frame(struct rsi_common *common, bool block_event) +{ + struct rsi_block_unblock_data *mgmt_frame; + struct sk_buff *skb; + + rsi_dbg(MGMT_TX_ZONE, "%s: Sending block/unblock frame\n", __func__); + + skb = dev_alloc_skb(FRAME_DESC_SZ); + if (!skb) { + rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n", + __func__); + return -ENOMEM; + } + + memset(skb->data, 0, FRAME_DESC_SZ); + mgmt_frame = (struct rsi_block_unblock_data *)skb->data; + + rsi_set_len_qno(&mgmt_frame->desc_dword0.len_qno, 0, RSI_WIFI_MGMT_Q); + mgmt_frame->desc_dword0.frame_type = BLOCK_HW_QUEUE; + mgmt_frame->host_quiet_info = QUIET_INFO_VALID; + + if (block_event) { + rsi_dbg(INFO_ZONE, "blocking the data qs\n"); + mgmt_frame->block_q_bitmap = cpu_to_le16(0xf); + mgmt_frame->block_q_bitmap |= cpu_to_le16(0xf << 4); + } else { + rsi_dbg(INFO_ZONE, "unblocking the data qs\n"); + mgmt_frame->unblock_q_bitmap = cpu_to_le16(0xf); + mgmt_frame->unblock_q_bitmap |= cpu_to_le16(0xf << 4); + } + + skb_put(skb, FRAME_DESC_SZ); + + return rsi_send_internal_mgmt_frame(common, skb); +} + +/** + * rsi_send_rx_filter_frame() - Sends a frame to filter the RX packets + * + * @common: Pointer to the driver private structure. + * @rx_filter_word: Flags of filter packets + * + * @Return: 0 on success, -1 on failure. + */ +int rsi_send_rx_filter_frame(struct rsi_common *common, u16 rx_filter_word) +{ + struct rsi_mac_frame *cmd_frame; + struct sk_buff *skb; + + rsi_dbg(MGMT_TX_ZONE, "Sending RX filter frame\n"); + + skb = dev_alloc_skb(FRAME_DESC_SZ); + if (!skb) { + rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n", + __func__); + return -ENOMEM; + } + + memset(skb->data, 0, FRAME_DESC_SZ); + cmd_frame = (struct rsi_mac_frame *)skb->data; + + cmd_frame->desc_word[0] = cpu_to_le16(RSI_WIFI_MGMT_Q << 12); + cmd_frame->desc_word[1] = cpu_to_le16(SET_RX_FILTER); + cmd_frame->desc_word[4] = cpu_to_le16(rx_filter_word); + + skb_put(skb, FRAME_DESC_SZ); + + return rsi_send_internal_mgmt_frame(common, skb); +} + +int rsi_send_ps_request(struct rsi_hw *adapter, bool enable, + struct ieee80211_vif *vif) +{ + struct rsi_common *common = adapter->priv; + struct ieee80211_bss_conf *bss = &vif->bss_conf; + struct rsi_request_ps *ps; + struct rsi_ps_info *ps_info; + struct sk_buff *skb; + int frame_len = sizeof(*ps); + + skb = dev_alloc_skb(frame_len); + if (!skb) + return -ENOMEM; + memset(skb->data, 0, frame_len); + + ps = (struct rsi_request_ps *)skb->data; + ps_info = &adapter->ps_info; + + rsi_set_len_qno(&ps->desc.desc_dword0.len_qno, + (frame_len - FRAME_DESC_SZ), RSI_WIFI_MGMT_Q); + ps->desc.desc_dword0.frame_type = WAKEUP_SLEEP_REQUEST; + if (enable) { + ps->ps_sleep.enable = RSI_PS_ENABLE; + ps->desc.desc_dword3.token = cpu_to_le16(RSI_SLEEP_REQUEST); + } else { + ps->ps_sleep.enable = RSI_PS_DISABLE; + ps->desc.desc_dword0.len_qno |= cpu_to_le16(RSI_PS_DISABLE_IND); + ps->desc.desc_dword3.token = cpu_to_le16(RSI_WAKEUP_REQUEST); + } + + ps->ps_uapsd_acs = common->uapsd_bitmap; + + ps->ps_sleep.sleep_type = ps_info->sleep_type; + ps->ps_sleep.num_bcns_per_lis_int = + cpu_to_le16(ps_info->num_bcns_per_lis_int); + ps->ps_sleep.sleep_duration = + cpu_to_le32(ps_info->deep_sleep_wakeup_period); + + if (bss->assoc) + ps->ps_sleep.connected_sleep = RSI_CONNECTED_SLEEP; + else + ps->ps_sleep.connected_sleep = RSI_DEEP_SLEEP; + + ps->ps_listen_interval = cpu_to_le32(ps_info->listen_interval); + ps->ps_dtim_interval_duration = + cpu_to_le32(ps_info->dtim_interval_duration); + + if (ps_info->listen_interval > ps_info->dtim_interval_duration) + ps->ps_listen_interval = cpu_to_le32(RSI_PS_DISABLE); + + ps->ps_num_dtim_intervals = cpu_to_le16(ps_info->num_dtims_per_sleep); + skb_put(skb, frame_len); + + return rsi_send_internal_mgmt_frame(common, skb); +} + +static int rsi_send_w9116_features(struct rsi_common *common) +{ + struct rsi_wlan_9116_features *w9116_features; + u16 frame_len = sizeof(struct rsi_wlan_9116_features); + struct sk_buff *skb; + + rsi_dbg(MGMT_TX_ZONE, + "%s: Sending wlan 9116 features\n", __func__); + + skb = dev_alloc_skb(frame_len); + if (!skb) + return -ENOMEM; + memset(skb->data, 0, frame_len); + + w9116_features = (struct rsi_wlan_9116_features *)skb->data; + + w9116_features->pll_mode = common->w9116_features.pll_mode; + w9116_features->rf_type = common->w9116_features.rf_type; + w9116_features->wireless_mode = common->w9116_features.wireless_mode; + w9116_features->enable_ppe = common->w9116_features.enable_ppe; + w9116_features->afe_type = common->w9116_features.afe_type; + if (common->w9116_features.dpd) + w9116_features->feature_enable |= cpu_to_le32(RSI_DPD); + if (common->w9116_features.sifs_tx_enable) + w9116_features->feature_enable |= + cpu_to_le32(RSI_SIFS_TX_ENABLE); + if (common->w9116_features.ps_options & RSI_DUTY_CYCLING) + w9116_features->feature_enable |= cpu_to_le32(RSI_DUTY_CYCLING); + if (common->w9116_features.ps_options & RSI_END_OF_FRAME) + w9116_features->feature_enable |= cpu_to_le32(RSI_END_OF_FRAME); + w9116_features->feature_enable |= + cpu_to_le32((common->w9116_features.ps_options & ~0x3) << 2); + + rsi_set_len_qno(&w9116_features->desc.desc_dword0.len_qno, + frame_len - FRAME_DESC_SZ, RSI_WIFI_MGMT_Q); + w9116_features->desc.desc_dword0.frame_type = FEATURES_ENABLE; + skb_put(skb, frame_len); + + return rsi_send_internal_mgmt_frame(common, skb); +} + +/** + * rsi_set_antenna() - This function send antenna configuration request + * to device + * + * @common: Pointer to the driver private structure. + * @antenna: bitmap for tx antenna selection + * + * Return: 0 on Success, negative error code on failure + */ +int rsi_set_antenna(struct rsi_common *common, u8 antenna) +{ + struct rsi_ant_sel_frame *ant_sel_frame; + struct sk_buff *skb; + + skb = dev_alloc_skb(FRAME_DESC_SZ); + if (!skb) { + rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n", + __func__); + return -ENOMEM; + } + + memset(skb->data, 0, FRAME_DESC_SZ); + + ant_sel_frame = (struct rsi_ant_sel_frame *)skb->data; + ant_sel_frame->desc_dword0.frame_type = ANT_SEL_FRAME; + ant_sel_frame->sub_frame_type = ANTENNA_SEL_TYPE; + ant_sel_frame->ant_value = cpu_to_le16(antenna & ANTENNA_MASK_VALUE); + rsi_set_len_qno(&ant_sel_frame->desc_dword0.len_qno, + 0, RSI_WIFI_MGMT_Q); + skb_put(skb, FRAME_DESC_SZ); + + return rsi_send_internal_mgmt_frame(common, skb); +} + +static int rsi_send_beacon(struct rsi_common *common) +{ + struct sk_buff *skb = NULL; + u8 dword_align_bytes = 0; + + skb = dev_alloc_skb(MAX_MGMT_PKT_SIZE); + if (!skb) + return -ENOMEM; + + memset(skb->data, 0, MAX_MGMT_PKT_SIZE); + + dword_align_bytes = ((unsigned long)skb->data & 0x3f); + if (dword_align_bytes) + skb_pull(skb, (64 - dword_align_bytes)); + if (rsi_prepare_beacon(common, skb)) { + rsi_dbg(ERR_ZONE, "Failed to prepare beacon\n"); + dev_kfree_skb(skb); + return -EINVAL; + } + skb_queue_tail(&common->tx_queue[MGMT_BEACON_Q], skb); + rsi_set_event(&common->tx_thread.event); + rsi_dbg(DATA_TX_ZONE, "%s: Added to beacon queue\n", __func__); + + return 0; +} + +#ifdef CONFIG_PM +int rsi_send_wowlan_request(struct rsi_common *common, u16 flags, + u16 sleep_status) +{ + struct rsi_wowlan_req *cmd_frame; + struct sk_buff *skb; + u8 length; + + rsi_dbg(ERR_ZONE, "%s: Sending wowlan request frame\n", __func__); + + length = sizeof(*cmd_frame); + skb = dev_alloc_skb(length); + if (!skb) + return -ENOMEM; + memset(skb->data, 0, length); + cmd_frame = (struct rsi_wowlan_req *)skb->data; + + rsi_set_len_qno(&cmd_frame->desc.desc_dword0.len_qno, + (length - FRAME_DESC_SZ), + RSI_WIFI_MGMT_Q); + cmd_frame->desc.desc_dword0.frame_type = WOWLAN_CONFIG_PARAMS; + cmd_frame->host_sleep_status = sleep_status; + if (common->secinfo.security_enable && + common->secinfo.gtk_cipher) + flags |= RSI_WOW_GTK_REKEY; + if (sleep_status) + cmd_frame->wow_flags = flags; + rsi_dbg(INFO_ZONE, "Host_Sleep_Status : %d Flags : %d\n", + cmd_frame->host_sleep_status, cmd_frame->wow_flags); + + skb_put(skb, length); + + return rsi_send_internal_mgmt_frame(common, skb); +} +#endif + +int rsi_send_bgscan_params(struct rsi_common *common, int enable) +{ + struct rsi_bgscan_params *params = &common->bgscan; + struct cfg80211_scan_request *scan_req = common->hwscan; + struct rsi_bgscan_config *bgscan; + struct sk_buff *skb; + u16 frame_len = sizeof(*bgscan); + u8 i; + + rsi_dbg(MGMT_TX_ZONE, "%s: Sending bgscan params frame\n", __func__); + + skb = dev_alloc_skb(frame_len); + if (!skb) + return -ENOMEM; + memset(skb->data, 0, frame_len); + + bgscan = (struct rsi_bgscan_config *)skb->data; + rsi_set_len_qno(&bgscan->desc_dword0.len_qno, + (frame_len - FRAME_DESC_SZ), RSI_WIFI_MGMT_Q); + bgscan->desc_dword0.frame_type = BG_SCAN_PARAMS; + bgscan->bgscan_threshold = cpu_to_le16(params->bgscan_threshold); + bgscan->roam_threshold = cpu_to_le16(params->roam_threshold); + if (enable) + bgscan->bgscan_periodicity = + cpu_to_le16(params->bgscan_periodicity); + bgscan->active_scan_duration = + cpu_to_le16(params->active_scan_duration); + bgscan->passive_scan_duration = + cpu_to_le16(params->passive_scan_duration); + bgscan->two_probe = params->two_probe; + + bgscan->num_bgscan_channels = scan_req->n_channels; + for (i = 0; i < bgscan->num_bgscan_channels; i++) + bgscan->channels2scan[i] = + cpu_to_le16(scan_req->channels[i]->hw_value); + + skb_put(skb, frame_len); + + return rsi_send_internal_mgmt_frame(common, skb); +} + +/* This function sends the probe request to be used by firmware in + * background scan + */ +int rsi_send_bgscan_probe_req(struct rsi_common *common, + struct ieee80211_vif *vif) +{ + struct cfg80211_scan_request *scan_req = common->hwscan; + struct rsi_bgscan_probe *bgscan; + struct sk_buff *skb; + struct sk_buff *probereq_skb; + u16 frame_len = sizeof(*bgscan); + size_t ssid_len = 0; + u8 *ssid = NULL; + + rsi_dbg(MGMT_TX_ZONE, + "%s: Sending bgscan probe req frame\n", __func__); + + if (common->priv->sc_nvifs <= 0) + return -ENODEV; + + if (scan_req->n_ssids) { + ssid = scan_req->ssids[0].ssid; + ssid_len = scan_req->ssids[0].ssid_len; + } + + skb = dev_alloc_skb(frame_len + MAX_BGSCAN_PROBE_REQ_LEN); + if (!skb) + return -ENOMEM; + memset(skb->data, 0, frame_len + MAX_BGSCAN_PROBE_REQ_LEN); + + bgscan = (struct rsi_bgscan_probe *)skb->data; + bgscan->desc_dword0.frame_type = BG_SCAN_PROBE_REQ; + bgscan->flags = cpu_to_le16(HOST_BG_SCAN_TRIG); + if (common->band == NL80211_BAND_5GHZ) { + bgscan->mgmt_rate = cpu_to_le16(RSI_RATE_6); + bgscan->def_chan = cpu_to_le16(40); + } else { + bgscan->mgmt_rate = cpu_to_le16(RSI_RATE_1); + bgscan->def_chan = cpu_to_le16(11); + } + bgscan->channel_scan_time = cpu_to_le16(RSI_CHANNEL_SCAN_TIME); + + probereq_skb = ieee80211_probereq_get(common->priv->hw, vif->addr, ssid, + ssid_len, scan_req->ie_len); + if (!probereq_skb) { + dev_kfree_skb(skb); + return -ENOMEM; + } + + memcpy(&skb->data[frame_len], probereq_skb->data, probereq_skb->len); + + bgscan->probe_req_length = cpu_to_le16(probereq_skb->len); + + rsi_set_len_qno(&bgscan->desc_dword0.len_qno, + (frame_len - FRAME_DESC_SZ + probereq_skb->len), + RSI_WIFI_MGMT_Q); + + skb_put(skb, frame_len + probereq_skb->len); + + dev_kfree_skb(probereq_skb); + + return rsi_send_internal_mgmt_frame(common, skb); +} + +/** + * rsi_handle_ta_confirm_type() - This function handles the confirm frames. + * @common: Pointer to the driver private structure. + * @msg: Pointer to received packet. + * + * Return: 0 on success, -1 on failure. + */ +static int rsi_handle_ta_confirm_type(struct rsi_common *common, + u8 *msg) +{ + struct rsi_hw *adapter = common->priv; + u8 sub_type = (msg[15] & 0xff); + u16 msg_len = ((u16 *)msg)[0] & 0xfff; + u8 offset; + + switch (sub_type) { + case BOOTUP_PARAMS_REQUEST: + rsi_dbg(FSM_ZONE, "%s: Boot up params confirm received\n", + __func__); + if (common->fsm_state == FSM_BOOT_PARAMS_SENT) { + if (adapter->device_model == RSI_DEV_9116) { + common->band = NL80211_BAND_5GHZ; + common->num_supp_bands = 2; + + if (rsi_send_reset_mac(common)) + goto out; + else + common->fsm_state = FSM_RESET_MAC_SENT; + } else { + adapter->eeprom.length = + (IEEE80211_ADDR_LEN + + WLAN_MAC_MAGIC_WORD_LEN + + WLAN_HOST_MODE_LEN); + adapter->eeprom.offset = WLAN_MAC_EEPROM_ADDR; + if (rsi_eeprom_read(common)) { + common->fsm_state = FSM_CARD_NOT_READY; + goto out; + } + common->fsm_state = FSM_EEPROM_READ_MAC_ADDR; + } + } else { + rsi_dbg(INFO_ZONE, + "%s: Received bootup params cfm in %d state\n", + __func__, common->fsm_state); + return 0; + } + break; + + case EEPROM_READ: + rsi_dbg(FSM_ZONE, "EEPROM READ confirm received\n"); + if (msg_len <= 0) { + rsi_dbg(FSM_ZONE, + "%s: [EEPROM_READ] Invalid len %d\n", + __func__, msg_len); + goto out; + } + if (msg[16] != MAGIC_WORD) { + rsi_dbg(FSM_ZONE, + "%s: [EEPROM_READ] Invalid token\n", __func__); + common->fsm_state = FSM_CARD_NOT_READY; + goto out; + } + if (common->fsm_state == FSM_EEPROM_READ_MAC_ADDR) { + offset = (FRAME_DESC_SZ + WLAN_HOST_MODE_LEN + + WLAN_MAC_MAGIC_WORD_LEN); + memcpy(common->mac_addr, &msg[offset], ETH_ALEN); + adapter->eeprom.length = + ((WLAN_MAC_MAGIC_WORD_LEN + 3) & (~3)); + adapter->eeprom.offset = WLAN_EEPROM_RFTYPE_ADDR; + if (rsi_eeprom_read(common)) { + rsi_dbg(ERR_ZONE, + "%s: Failed reading RF band\n", + __func__); + common->fsm_state = FSM_CARD_NOT_READY; + goto out; + } + common->fsm_state = FSM_EEPROM_READ_RF_TYPE; + } else if (common->fsm_state == FSM_EEPROM_READ_RF_TYPE) { + if ((msg[17] & 0x3) == 0x3) { + rsi_dbg(INIT_ZONE, "Dual band supported\n"); + common->band = NL80211_BAND_5GHZ; + common->num_supp_bands = 2; + } else if ((msg[17] & 0x3) == 0x1) { + rsi_dbg(INIT_ZONE, + "Only 2.4Ghz band supported\n"); + common->band = NL80211_BAND_2GHZ; + common->num_supp_bands = 1; + } + if (rsi_send_reset_mac(common)) + goto out; + common->fsm_state = FSM_RESET_MAC_SENT; + } else { + rsi_dbg(ERR_ZONE, "%s: Invalid EEPROM read type\n", + __func__); + return 0; + } + break; + + case RESET_MAC_REQ: + if (common->fsm_state == FSM_RESET_MAC_SENT) { + rsi_dbg(FSM_ZONE, "%s: Reset MAC cfm received\n", + __func__); + + if (rsi_load_radio_caps(common)) + goto out; + else + common->fsm_state = FSM_RADIO_CAPS_SENT; + } else { + rsi_dbg(ERR_ZONE, + "%s: Received reset mac cfm in %d state\n", + __func__, common->fsm_state); + return 0; + } + break; + + case RADIO_CAPABILITIES: + if (common->fsm_state == FSM_RADIO_CAPS_SENT) { + common->rf_reset = 1; + if (adapter->device_model == RSI_DEV_9116 && + rsi_send_w9116_features(common)) { + rsi_dbg(ERR_ZONE, + "Failed to send 9116 features\n"); + goto out; + } + if (rsi_program_bb_rf(common)) { + goto out; + } else { + common->fsm_state = FSM_BB_RF_PROG_SENT; + rsi_dbg(FSM_ZONE, "%s: Radio cap cfm received\n", + __func__); + } + } else { + rsi_dbg(INFO_ZONE, + "%s: Received radio caps cfm in %d state\n", + __func__, common->fsm_state); + return 0; + } + break; + + case BB_PROG_VALUES_REQUEST: + case RF_PROG_VALUES_REQUEST: + case BBP_PROG_IN_TA: + rsi_dbg(FSM_ZONE, "%s: BB/RF cfm received\n", __func__); + if (common->fsm_state == FSM_BB_RF_PROG_SENT) { + common->bb_rf_prog_count--; + if (!common->bb_rf_prog_count) { + common->fsm_state = FSM_MAC_INIT_DONE; + if (common->reinit_hw) { + complete(&common->wlan_init_completion); + } else { + return rsi_mac80211_attach(common); + } + } + } else { + rsi_dbg(INFO_ZONE, + "%s: Received bbb_rf cfm in %d state\n", + __func__, common->fsm_state); + return 0; + } + break; + + case SCAN_REQUEST: + rsi_dbg(INFO_ZONE, "Set channel confirm\n"); + break; + + case WAKEUP_SLEEP_REQUEST: + rsi_dbg(INFO_ZONE, "Wakeup/Sleep confirmation.\n"); + return rsi_handle_ps_confirm(adapter, msg); + + case BG_SCAN_PROBE_REQ: + rsi_dbg(INFO_ZONE, "BG scan complete event\n"); + if (common->bgscan_en) { + struct cfg80211_scan_info info; + + if (!rsi_send_bgscan_params(common, RSI_STOP_BGSCAN)) + common->bgscan_en = 0; + info.aborted = false; + ieee80211_scan_completed(adapter->hw, &info); + } + rsi_dbg(INFO_ZONE, "Background scan completed\n"); + break; + + default: + rsi_dbg(INFO_ZONE, "%s: Invalid TA confirm pkt received\n", + __func__); + break; + } + return 0; +out: + rsi_dbg(ERR_ZONE, "%s: Unable to send pkt/Invalid frame received\n", + __func__); + return -EINVAL; +} + +int rsi_handle_card_ready(struct rsi_common *common, u8 *msg) +{ + int status; + + switch (common->fsm_state) { + case FSM_CARD_NOT_READY: + rsi_dbg(INIT_ZONE, "Card ready indication from Common HAL\n"); + rsi_set_default_parameters(common); + if (rsi_send_common_dev_params(common) < 0) + return -EINVAL; + common->fsm_state = FSM_COMMON_DEV_PARAMS_SENT; + break; + case FSM_COMMON_DEV_PARAMS_SENT: + rsi_dbg(INIT_ZONE, "Card ready indication from WLAN HAL\n"); + + if (common->priv->device_model == RSI_DEV_9116) { + if (msg[16] != MAGIC_WORD) { + rsi_dbg(FSM_ZONE, + "%s: [EEPROM_READ] Invalid token\n", + __func__); + common->fsm_state = FSM_CARD_NOT_READY; + return -EINVAL; + } + memcpy(common->mac_addr, &msg[20], ETH_ALEN); + rsi_dbg(INIT_ZONE, "MAC Addr %pM", common->mac_addr); + } + /* Get usb buffer status register address */ + common->priv->usb_buffer_status_reg = *(u32 *)&msg[8]; + rsi_dbg(INFO_ZONE, "USB buffer status register = %x\n", + common->priv->usb_buffer_status_reg); + + if (common->priv->device_model == RSI_DEV_9116) + status = rsi_load_9116_bootup_params(common); + else + status = rsi_load_bootup_params(common); + if (status < 0) { + common->fsm_state = FSM_CARD_NOT_READY; + return status; + } + common->fsm_state = FSM_BOOT_PARAMS_SENT; + break; + default: + rsi_dbg(ERR_ZONE, + "%s: card ready indication in invalid state %d.\n", + __func__, common->fsm_state); + return -EINVAL; + } + + return 0; +} + +/** + * rsi_mgmt_pkt_recv() - This function processes the management packets + * received from the hardware. + * @common: Pointer to the driver private structure. + * @msg: Pointer to the received packet. + * + * Return: 0 on success, -1 on failure. + */ +int rsi_mgmt_pkt_recv(struct rsi_common *common, u8 *msg) +{ + s32 msg_len = (le16_to_cpu(*(__le16 *)&msg[0]) & 0x0fff); + u16 msg_type = (msg[2]); + + rsi_dbg(FSM_ZONE, "%s: Msg Len: %d, Msg Type: %4x\n", + __func__, msg_len, msg_type); + + switch (msg_type) { + case TA_CONFIRM_TYPE: + return rsi_handle_ta_confirm_type(common, msg); + case CARD_READY_IND: + common->hibernate_resume = false; + rsi_dbg(FSM_ZONE, "%s: Card ready indication received\n", + __func__); + return rsi_handle_card_ready(common, msg); + case TX_STATUS_IND: + switch (msg[RSI_TX_STATUS_TYPE]) { + case PROBEREQ_CONFIRM: + common->mgmt_q_block = false; + rsi_dbg(FSM_ZONE, "%s: Probe confirm received\n", + __func__); + break; + case EAPOL4_CONFIRM: + if (msg[RSI_TX_STATUS]) { + common->eapol4_confirm = true; + if (!rsi_send_block_unblock_frame(common, + false)) + common->hw_data_qs_blocked = false; + } + } + break; + case BEACON_EVENT_IND: + rsi_dbg(INFO_ZONE, "Beacon event\n"); + if (common->fsm_state != FSM_MAC_INIT_DONE) + return -1; + if (common->iface_down) + return -1; + if (!common->beacon_enabled) + return -1; + rsi_send_beacon(common); + break; + case WOWLAN_WAKEUP_REASON: + rsi_dbg(ERR_ZONE, "\n\nWakeup Type: %x\n", msg[15]); + switch (msg[15]) { + case RSI_UNICAST_MAGIC_PKT: + rsi_dbg(ERR_ZONE, + "*** Wakeup for Unicast magic packet ***\n"); + break; + case RSI_BROADCAST_MAGICPKT: + rsi_dbg(ERR_ZONE, + "*** Wakeup for Broadcast magic packet ***\n"); + break; + case RSI_EAPOL_PKT: + rsi_dbg(ERR_ZONE, + "*** Wakeup for GTK renewal ***\n"); + break; + case RSI_DISCONNECT_PKT: + rsi_dbg(ERR_ZONE, + "*** Wakeup for Disconnect ***\n"); + break; + case RSI_HW_BMISS_PKT: + rsi_dbg(ERR_ZONE, + "*** Wakeup for HW Beacon miss ***\n"); + break; + default: + rsi_dbg(ERR_ZONE, + "##### Un-intentional Wakeup #####\n"); + break; + } + break; + case RX_DOT11_MGMT: + return rsi_mgmt_pkt_to_core(common, msg, msg_len); + default: + rsi_dbg(INFO_ZONE, "Received packet type: 0x%x\n", msg_type); + } + return 0; +} diff --git a/drivers/net/wireless/rsi/rsi_91x_ps.c b/drivers/net/wireless/rsi/rsi_91x_ps.c new file mode 100644 index 0000000..01472fa --- /dev/null +++ b/drivers/net/wireless/rsi/rsi_91x_ps.c @@ -0,0 +1,146 @@ +/** + * Copyright (c) 2014 Redpine Signals Inc. + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include <linux/etherdevice.h> +#include <linux/if.h> +#include <linux/version.h> +#include "rsi_debugfs.h" +#include "rsi_mgmt.h" +#include "rsi_common.h" +#include "rsi_ps.h" + +char *str_psstate(enum ps_state state) +{ + switch (state) { + case PS_NONE: + return "PS_NONE"; + case PS_DISABLE_REQ_SENT: + return "PS_DISABLE_REQ_SENT"; + case PS_ENABLE_REQ_SENT: + return "PS_ENABLE_REQ_SENT"; + case PS_ENABLED: + return "PS_ENABLED"; + default: + return "INVALID_STATE"; + } +} + +static inline void rsi_modify_ps_state(struct rsi_hw *adapter, + enum ps_state nstate) +{ + rsi_dbg(INFO_ZONE, "PS state changed %s => %s\n", + str_psstate(adapter->ps_state), + str_psstate(nstate)); + + adapter->ps_state = nstate; +} + +void rsi_default_ps_params(struct rsi_hw *adapter) +{ + struct rsi_ps_info *ps_info = &adapter->ps_info; + + ps_info->enabled = true; + ps_info->sleep_type = RSI_SLEEP_TYPE_LP; + ps_info->tx_threshold = 0; + ps_info->rx_threshold = 0; + ps_info->tx_hysterisis = 0; + ps_info->rx_hysterisis = 0; + ps_info->monitor_interval = 0; + ps_info->listen_interval = RSI_DEF_LISTEN_INTERVAL; + ps_info->num_bcns_per_lis_int = 0; + ps_info->dtim_interval_duration = 0; + ps_info->num_dtims_per_sleep = 0; + ps_info->deep_sleep_wakeup_period = RSI_DEF_DS_WAKEUP_PERIOD; +} + +void rsi_enable_ps(struct rsi_hw *adapter, struct ieee80211_vif *vif) +{ + if (adapter->ps_state != PS_NONE) { + rsi_dbg(ERR_ZONE, + "%s: Cannot accept enable PS in %s state\n", + __func__, str_psstate(adapter->ps_state)); + return; + } + + if (rsi_send_ps_request(adapter, true, vif)) { + rsi_dbg(ERR_ZONE, + "%s: Failed to send PS request to device\n", + __func__); + return; + } + + rsi_modify_ps_state(adapter, PS_ENABLE_REQ_SENT); +} + +/* This function is used to disable power save */ +void rsi_disable_ps(struct rsi_hw *adapter, struct ieee80211_vif *vif) +{ + if (adapter->ps_state != PS_ENABLED) { + rsi_dbg(ERR_ZONE, + "%s: Cannot accept disable PS in %s state\n", + __func__, str_psstate(adapter->ps_state)); + return; + } + + if (rsi_send_ps_request(adapter, false, vif)) { + rsi_dbg(ERR_ZONE, + "%s: Failed to send PS request to device\n", + __func__); + return; + } + + rsi_modify_ps_state(adapter, PS_DISABLE_REQ_SENT); +} + +void rsi_conf_uapsd(struct rsi_hw *adapter, struct ieee80211_vif *vif) +{ + int ret; + + if (adapter->ps_state != PS_ENABLED) + return; + + ret = rsi_send_ps_request(adapter, false, vif); + if (!ret) + ret = rsi_send_ps_request(adapter, true, vif); + if (ret) + rsi_dbg(ERR_ZONE, + "%s: Failed to send PS request to device\n", + __func__); +} + +int rsi_handle_ps_confirm(struct rsi_hw *adapter, u8 *msg) +{ + u16 cfm_type = get_unaligned_le16(msg + PS_CONFIRM_INDEX); + + switch (cfm_type) { + case RSI_SLEEP_REQUEST: + if (adapter->ps_state == PS_ENABLE_REQ_SENT) + rsi_modify_ps_state(adapter, PS_ENABLED); + break; + case RSI_WAKEUP_REQUEST: + if (adapter->ps_state == PS_DISABLE_REQ_SENT) + rsi_modify_ps_state(adapter, PS_NONE); + break; + default: + rsi_dbg(ERR_ZONE, + "Invalid PS confirm type %x in state %s\n", + cfm_type, str_psstate(adapter->ps_state)); + return -1; + } + + return 0; +} + diff --git a/drivers/net/wireless/rsi/rsi_91x_sdio.c b/drivers/net/wireless/rsi/rsi_91x_sdio.c new file mode 100644 index 0000000..54eba36 --- /dev/null +++ b/drivers/net/wireless/rsi/rsi_91x_sdio.c @@ -0,0 +1,1580 @@ +/** + * Copyright (c) 2014 Redpine Signals Inc. + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + */ + +#include <linux/module.h> +#include "rsi_sdio.h" +#include "rsi_common.h" +#include "rsi_coex.h" +#include "rsi_hal.h" + +/* Default operating mode is wlan STA + BT */ +static u16 dev_oper_mode = DEV_OPMODE_STA_BT_DUAL; +module_param(dev_oper_mode, ushort, 0444); +MODULE_PARM_DESC(dev_oper_mode, + "1[Wi-Fi], 4[BT], 8[BT LE], 5[Wi-Fi STA + BT classic]\n" + "9[Wi-Fi STA + BT LE], 13[Wi-Fi STA + BT classic + BT LE]\n" + "6[AP + BT classic], 14[AP + BT classic + BT LE]"); + +/** + * rsi_sdio_set_cmd52_arg() - This function prepares cmd 52 read/write arg. + * @rw: Read/write + * @func: function number + * @raw: indicates whether to perform read after write + * @address: address to which to read/write + * @writedata: data to write + * + * Return: argument + */ +static u32 rsi_sdio_set_cmd52_arg(bool rw, + u8 func, + u8 raw, + u32 address, + u8 writedata) +{ + return ((rw & 1) << 31) | ((func & 0x7) << 28) | + ((raw & 1) << 27) | (1 << 26) | + ((address & 0x1FFFF) << 9) | (1 << 8) | + (writedata & 0xFF); +} + +/** + * rsi_cmd52writebyte() - This function issues cmd52 byte write onto the card. + * @card: Pointer to the mmc_card. + * @address: Address to write. + * @byte: Data to write. + * + * Return: Write status. + */ +static int rsi_cmd52writebyte(struct mmc_card *card, + u32 address, + u8 byte) +{ + struct mmc_command io_cmd; + u32 arg; + + memset(&io_cmd, 0, sizeof(io_cmd)); + arg = rsi_sdio_set_cmd52_arg(1, 0, 0, address, byte); + io_cmd.opcode = SD_IO_RW_DIRECT; + io_cmd.arg = arg; + io_cmd.flags = MMC_RSP_R5 | MMC_CMD_AC; + + return mmc_wait_for_cmd(card->host, &io_cmd, 0); +} + +/** + * rsi_cmd52readbyte() - This function issues cmd52 byte read onto the card. + * @card: Pointer to the mmc_card. + * @address: Address to read from. + * @byte: Variable to store read value. + * + * Return: Read status. + */ +static int rsi_cmd52readbyte(struct mmc_card *card, + u32 address, + u8 *byte) +{ + struct mmc_command io_cmd; + u32 arg; + int err; + + memset(&io_cmd, 0, sizeof(io_cmd)); + arg = rsi_sdio_set_cmd52_arg(0, 0, 0, address, 0); + io_cmd.opcode = SD_IO_RW_DIRECT; + io_cmd.arg = arg; + io_cmd.flags = MMC_RSP_R5 | MMC_CMD_AC; + + err = mmc_wait_for_cmd(card->host, &io_cmd, 0); + if ((!err) && (byte)) + *byte = io_cmd.resp[0] & 0xFF; + return err; +} + +/** + * rsi_issue_sdiocommand() - This function issues sdio commands. + * @func: Pointer to the sdio_func structure. + * @opcode: Opcode value. + * @arg: Arguments to pass. + * @flags: Flags which are set. + * @resp: Pointer to store response. + * + * Return: err: command status as 0 or -1. + */ +static int rsi_issue_sdiocommand(struct sdio_func *func, + u32 opcode, + u32 arg, + u32 flags, + u32 *resp) +{ + struct mmc_command cmd; + struct mmc_host *host; + int err; + + host = func->card->host; + + memset(&cmd, 0, sizeof(struct mmc_command)); + cmd.opcode = opcode; + cmd.arg = arg; + cmd.flags = flags; + err = mmc_wait_for_cmd(host, &cmd, 3); + + if ((!err) && (resp)) + *resp = cmd.resp[0]; + + return err; +} + +/** + * rsi_handle_interrupt() - This function is called upon the occurrence + * of an interrupt. + * @function: Pointer to the sdio_func structure. + * + * Return: None. + */ +static void rsi_handle_interrupt(struct sdio_func *function) +{ + struct rsi_hw *adapter = sdio_get_drvdata(function); + struct rsi_91x_sdiodev *dev = + (struct rsi_91x_sdiodev *)adapter->rsi_dev; + + if (adapter->priv->fsm_state == FSM_FW_NOT_LOADED) + return; + + dev->sdio_irq_task = current; + rsi_interrupt_handler(adapter); + dev->sdio_irq_task = NULL; +} + +/** + * rsi_reset_card() - This function resets and re-initializes the card. + * @pfunction: Pointer to the sdio_func structure. + * + * Return: None. + */ +static void rsi_reset_card(struct sdio_func *pfunction) +{ + int ret = 0; + int err; + struct mmc_card *card = pfunction->card; + struct mmc_host *host = card->host; + u8 cmd52_resp; + u32 clock, resp, i; + u16 rca; + + /* Reset 9110 chip */ + ret = rsi_cmd52writebyte(pfunction->card, + SDIO_CCCR_ABORT, + (1 << 3)); + + /* Card will not send any response as it is getting reset immediately + * Hence expect a timeout status from host controller + */ + if (ret != -ETIMEDOUT) + rsi_dbg(ERR_ZONE, "%s: Reset failed : %d\n", __func__, ret); + + /* Wait for few milli seconds to get rid of residue charges if any */ + msleep(20); + + /* Initialize the SDIO card */ + host->ios.chip_select = MMC_CS_DONTCARE; + host->ios.bus_mode = MMC_BUSMODE_OPENDRAIN; + host->ios.power_mode = MMC_POWER_UP; + host->ios.bus_width = MMC_BUS_WIDTH_1; + host->ios.timing = MMC_TIMING_LEGACY; + host->ops->set_ios(host, &host->ios); + + /* + * This delay should be sufficient to allow the power supply + * to reach the minimum voltage. + */ + msleep(20); + + host->ios.clock = host->f_min; + host->ios.power_mode = MMC_POWER_ON; + host->ops->set_ios(host, &host->ios); + + /* + * This delay must be at least 74 clock sizes, or 1 ms, or the + * time required to reach a stable voltage. + */ + msleep(20); + + /* Issue CMD0. Goto idle state */ + host->ios.chip_select = MMC_CS_HIGH; + host->ops->set_ios(host, &host->ios); + msleep(20); + err = rsi_issue_sdiocommand(pfunction, + MMC_GO_IDLE_STATE, + 0, + (MMC_RSP_NONE | MMC_CMD_BC), + NULL); + host->ios.chip_select = MMC_CS_DONTCARE; + host->ops->set_ios(host, &host->ios); + msleep(20); + host->use_spi_crc = 0; + + if (err) + rsi_dbg(ERR_ZONE, "%s: CMD0 failed : %d\n", __func__, err); + + /* Issue CMD5, arg = 0 */ + err = rsi_issue_sdiocommand(pfunction, SD_IO_SEND_OP_COND, 0, + (MMC_RSP_R4 | MMC_CMD_BCR), &resp); + if (err) + rsi_dbg(ERR_ZONE, "%s: CMD5 failed : %d\n", + __func__, err); + card->ocr = resp; + /* Issue CMD5, arg = ocr. Wait till card is ready */ + for (i = 0; i < 100; i++) { + err = rsi_issue_sdiocommand(pfunction, SD_IO_SEND_OP_COND, + card->ocr, + (MMC_RSP_R4 | MMC_CMD_BCR), &resp); + if (err) { + rsi_dbg(ERR_ZONE, "%s: CMD5 failed : %d\n", + __func__, err); + break; + } + + if (resp & MMC_CARD_BUSY) + break; + msleep(20); + } + + if ((i == 100) || (err)) { + rsi_dbg(ERR_ZONE, "%s: card in not ready : %d %d\n", + __func__, i, err); + return; + } + + /* Issue CMD3, get RCA */ + err = rsi_issue_sdiocommand(pfunction, + SD_SEND_RELATIVE_ADDR, + 0, + (MMC_RSP_R6 | MMC_CMD_BCR), + &resp); + if (err) { + rsi_dbg(ERR_ZONE, "%s: CMD3 failed : %d\n", __func__, err); + return; + } + rca = resp >> 16; + host->ios.bus_mode = MMC_BUSMODE_PUSHPULL; + host->ops->set_ios(host, &host->ios); + + /* Issue CMD7, select card */ + err = rsi_issue_sdiocommand(pfunction, + MMC_SELECT_CARD, + (rca << 16), + (MMC_RSP_R1 | MMC_CMD_AC), + NULL); + if (err) { + rsi_dbg(ERR_ZONE, "%s: CMD7 failed : %d\n", __func__, err); + return; + } + + /* Enable high speed */ + if (card->host->caps & MMC_CAP_SD_HIGHSPEED) { + rsi_dbg(ERR_ZONE, "%s: Set high speed mode\n", __func__); + err = rsi_cmd52readbyte(card, SDIO_CCCR_SPEED, &cmd52_resp); + if (err) { + rsi_dbg(ERR_ZONE, "%s: CCCR speed reg read failed: %d\n", + __func__, err); + } else { + err = rsi_cmd52writebyte(card, + SDIO_CCCR_SPEED, + (cmd52_resp | SDIO_SPEED_EHS)); + if (err) { + rsi_dbg(ERR_ZONE, + "%s: CCR speed regwrite failed %d\n", + __func__, err); + return; + } + host->ios.timing = MMC_TIMING_SD_HS; + host->ops->set_ios(host, &host->ios); + } + } + + /* Set clock */ + if (mmc_card_hs(card)) + clock = 50000000; + else + clock = card->cis.max_dtr; + + if (clock > host->f_max) + clock = host->f_max; + + host->ios.clock = clock; + host->ops->set_ios(host, &host->ios); + + if (card->host->caps & MMC_CAP_4_BIT_DATA) { + /* CMD52: Set bus width & disable card detect resistor */ + err = rsi_cmd52writebyte(card, + SDIO_CCCR_IF, + (SDIO_BUS_CD_DISABLE | + SDIO_BUS_WIDTH_4BIT)); + if (err) { + rsi_dbg(ERR_ZONE, "%s: Set bus mode failed : %d\n", + __func__, err); + return; + } + host->ios.bus_width = MMC_BUS_WIDTH_4; + host->ops->set_ios(host, &host->ios); + } +} + +/** + * rsi_setclock() - This function sets the clock frequency. + * @adapter: Pointer to the adapter structure. + * @freq: Clock frequency. + * + * Return: None. + */ +static void rsi_setclock(struct rsi_hw *adapter, u32 freq) +{ + struct rsi_91x_sdiodev *dev = + (struct rsi_91x_sdiodev *)adapter->rsi_dev; + struct mmc_host *host = dev->pfunction->card->host; + u32 clock; + + clock = freq * 1000; + if (clock > host->f_max) + clock = host->f_max; + host->ios.clock = clock; + host->ops->set_ios(host, &host->ios); +} + +/** + * rsi_setblocklength() - This function sets the host block length. + * @adapter: Pointer to the adapter structure. + * @length: Block length to be set. + * + * Return: status: 0 on success, -1 on failure. + */ +static int rsi_setblocklength(struct rsi_hw *adapter, u32 length) +{ + struct rsi_91x_sdiodev *dev = + (struct rsi_91x_sdiodev *)adapter->rsi_dev; + int status; + rsi_dbg(INIT_ZONE, "%s: Setting the block length\n", __func__); + + status = sdio_set_block_size(dev->pfunction, length); + dev->pfunction->max_blksize = 256; + adapter->block_size = dev->pfunction->max_blksize; + + rsi_dbg(INFO_ZONE, + "%s: Operational blk length is %d\n", __func__, length); + return status; +} + +/** + * rsi_setupcard() - This function queries and sets the card's features. + * @adapter: Pointer to the adapter structure. + * + * Return: status: 0 on success, -1 on failure. + */ +static int rsi_setupcard(struct rsi_hw *adapter) +{ + struct rsi_91x_sdiodev *dev = + (struct rsi_91x_sdiodev *)adapter->rsi_dev; + int status = 0; + + rsi_setclock(adapter, 50000); + + dev->tx_blk_size = 256; + status = rsi_setblocklength(adapter, dev->tx_blk_size); + if (status) + rsi_dbg(ERR_ZONE, + "%s: Unable to set block length\n", __func__); + return status; +} + +/** + * rsi_sdio_read_register() - This function reads one byte of information + * from a register. + * @adapter: Pointer to the adapter structure. + * @addr: Address of the register. + * @data: Pointer to the data that stores the data read. + * + * Return: 0 on success, -1 on failure. + */ +int rsi_sdio_read_register(struct rsi_hw *adapter, + u32 addr, + u8 *data) +{ + struct rsi_91x_sdiodev *dev = + (struct rsi_91x_sdiodev *)adapter->rsi_dev; + u8 fun_num = 0; + int status; + + if (likely(dev->sdio_irq_task != current)) + sdio_claim_host(dev->pfunction); + + if (fun_num == 0) + *data = sdio_f0_readb(dev->pfunction, addr, &status); + else + *data = sdio_readb(dev->pfunction, addr, &status); + + if (likely(dev->sdio_irq_task != current)) + sdio_release_host(dev->pfunction); + + return status; +} + +/** + * rsi_sdio_write_register() - This function writes one byte of information + * into a register. + * @adapter: Pointer to the adapter structure. + * @function: Function Number. + * @addr: Address of the register. + * @data: Pointer to the data tha has to be written. + * + * Return: 0 on success, -1 on failure. + */ +int rsi_sdio_write_register(struct rsi_hw *adapter, + u8 function, + u32 addr, + u8 *data) +{ + struct rsi_91x_sdiodev *dev = + (struct rsi_91x_sdiodev *)adapter->rsi_dev; + int status = 0; + + if (likely(dev->sdio_irq_task != current)) + sdio_claim_host(dev->pfunction); + + if (function == 0) + sdio_f0_writeb(dev->pfunction, *data, addr, &status); + else + sdio_writeb(dev->pfunction, *data, addr, &status); + + if (likely(dev->sdio_irq_task != current)) + sdio_release_host(dev->pfunction); + + return status; +} + +/** + * rsi_sdio_ack_intr() - This function acks the interrupt received. + * @adapter: Pointer to the adapter structure. + * @int_bit: Interrupt bit to write into register. + * + * Return: None. + */ +void rsi_sdio_ack_intr(struct rsi_hw *adapter, u8 int_bit) +{ + int status; + status = rsi_sdio_write_register(adapter, + 1, + (SDIO_FUN1_INTR_CLR_REG | + RSI_SD_REQUEST_MASTER), + &int_bit); + if (status) + rsi_dbg(ERR_ZONE, "%s: unable to send ack\n", __func__); +} + + + +/** + * rsi_sdio_read_register_multiple() - This function read multiple bytes of + * information from the SD card. + * @adapter: Pointer to the adapter structure. + * @addr: Address of the register. + * @count: Number of multiple bytes to be read. + * @data: Pointer to the read data. + * + * Return: 0 on success, -1 on failure. + */ +static int rsi_sdio_read_register_multiple(struct rsi_hw *adapter, + u32 addr, + u8 *data, + u16 count) +{ + struct rsi_91x_sdiodev *dev = + (struct rsi_91x_sdiodev *)adapter->rsi_dev; + u32 status; + + if (likely(dev->sdio_irq_task != current)) + sdio_claim_host(dev->pfunction); + + status = sdio_readsb(dev->pfunction, data, addr, count); + + if (likely(dev->sdio_irq_task != current)) + sdio_release_host(dev->pfunction); + + if (status != 0) + rsi_dbg(ERR_ZONE, "%s: Synch Cmd53 read failed\n", __func__); + return status; +} + +/** + * rsi_sdio_write_register_multiple() - This function writes multiple bytes of + * information to the SD card. + * @adapter: Pointer to the adapter structure. + * @addr: Address of the register. + * @data: Pointer to the data that has to be written. + * @count: Number of multiple bytes to be written. + * + * Return: 0 on success, -1 on failure. + */ +int rsi_sdio_write_register_multiple(struct rsi_hw *adapter, + u32 addr, + u8 *data, + u16 count) +{ + struct rsi_91x_sdiodev *dev = + (struct rsi_91x_sdiodev *)adapter->rsi_dev; + int status; + + if (dev->write_fail > 1) { + rsi_dbg(ERR_ZONE, "%s: Stopping card writes\n", __func__); + return 0; + } else if (dev->write_fail == 1) { + /** + * Assuming it is a CRC failure, we want to allow another + * card write + */ + rsi_dbg(ERR_ZONE, "%s: Continue card writes\n", __func__); + dev->write_fail++; + } + + if (likely(dev->sdio_irq_task != current)) + sdio_claim_host(dev->pfunction); + + status = sdio_writesb(dev->pfunction, addr, data, count); + + if (likely(dev->sdio_irq_task != current)) + sdio_release_host(dev->pfunction); + + if (status) { + rsi_dbg(ERR_ZONE, "%s: Synch Cmd53 write failed %d\n", + __func__, status); + dev->write_fail = 2; + } else { + memcpy(dev->prev_desc, data, FRAME_DESC_SZ); + } + return status; +} + +static int rsi_sdio_load_data_master_write(struct rsi_hw *adapter, + u32 base_address, + u32 instructions_sz, + u16 block_size, + u8 *ta_firmware) +{ + u32 num_blocks, offset, i; + u16 msb_address, lsb_address; + u8 *temp_buf; + int status; + + num_blocks = instructions_sz / block_size; + msb_address = base_address >> 16; + + rsi_dbg(INFO_ZONE, "ins_size: %d, num_blocks: %d\n", + instructions_sz, num_blocks); + + temp_buf = kmalloc(block_size, GFP_KERNEL); + if (!temp_buf) + return -ENOMEM; + + /* Loading DM ms word in the sdio slave */ + status = rsi_sdio_master_access_msword(adapter, msb_address); + if (status < 0) { + rsi_dbg(ERR_ZONE, "%s: Unable to set ms word reg\n", __func__); + goto out_free; + } + + for (offset = 0, i = 0; i < num_blocks; i++, offset += block_size) { + memcpy(temp_buf, ta_firmware + offset, block_size); + lsb_address = (u16)base_address; + status = rsi_sdio_write_register_multiple + (adapter, + lsb_address | RSI_SD_REQUEST_MASTER, + temp_buf, block_size); + if (status < 0) { + rsi_dbg(ERR_ZONE, "%s: failed to write\n", __func__); + goto out_free; + } + rsi_dbg(INFO_ZONE, "%s: loading block: %d\n", __func__, i); + base_address += block_size; + + if ((base_address >> 16) != msb_address) { + msb_address += 1; + + /* Loading DM ms word in the sdio slave */ + status = rsi_sdio_master_access_msword(adapter, + msb_address); + if (status < 0) { + rsi_dbg(ERR_ZONE, + "%s: Unable to set ms word reg\n", + __func__); + goto out_free; + } + } + } + + if (instructions_sz % block_size) { + memset(temp_buf, 0, block_size); + memcpy(temp_buf, ta_firmware + offset, + instructions_sz % block_size); + lsb_address = (u16)base_address; + status = rsi_sdio_write_register_multiple + (adapter, + lsb_address | RSI_SD_REQUEST_MASTER, + temp_buf, + instructions_sz % block_size); + if (status < 0) + goto out_free; + rsi_dbg(INFO_ZONE, + "Written Last Block in Address 0x%x Successfully\n", + offset | RSI_SD_REQUEST_MASTER); + } + + status = 0; +out_free: + kfree(temp_buf); + return status; +} + +#define FLASH_SIZE_ADDR 0x04000016 +static int rsi_sdio_master_reg_read(struct rsi_hw *adapter, u32 addr, + u32 *read_buf, u16 size) +{ + u32 addr_on_bus, *data; + u16 ms_addr; + int status; + + data = kzalloc(RSI_MASTER_REG_BUF_SIZE, GFP_KERNEL); + if (!data) + return -ENOMEM; + + ms_addr = (addr >> 16); + status = rsi_sdio_master_access_msword(adapter, ms_addr); + if (status < 0) { + rsi_dbg(ERR_ZONE, + "%s: Unable to set ms word to common reg\n", + __func__); + goto err; + } + addr &= 0xFFFF; + + addr_on_bus = (addr & 0xFF000000); + if ((addr_on_bus == (FLASH_SIZE_ADDR & 0xFF000000)) || + (addr_on_bus == 0x0)) + addr_on_bus = (addr & ~(0x3)); + else + addr_on_bus = addr; + + /* Bring TA out of reset */ + status = rsi_sdio_read_register_multiple + (adapter, + (addr_on_bus | RSI_SD_REQUEST_MASTER), + (u8 *)data, 4); + if (status < 0) { + rsi_dbg(ERR_ZONE, "%s: AHB register read failed\n", __func__); + goto err; + } + if (size == 2) { + if ((addr & 0x3) == 0) + *read_buf = *data; + else + *read_buf = (*data >> 16); + *read_buf = (*read_buf & 0xFFFF); + } else if (size == 1) { + if ((addr & 0x3) == 0) + *read_buf = *data; + else if ((addr & 0x3) == 1) + *read_buf = (*data >> 8); + else if ((addr & 0x3) == 2) + *read_buf = (*data >> 16); + else + *read_buf = (*data >> 24); + *read_buf = (*read_buf & 0xFF); + } else { + *read_buf = *data; + } + +err: + kfree(data); + return status; +} + +static int rsi_sdio_master_reg_write(struct rsi_hw *adapter, + unsigned long addr, + unsigned long data, u16 size) +{ + unsigned long *data_aligned; + int status; + + data_aligned = kzalloc(RSI_MASTER_REG_BUF_SIZE, GFP_KERNEL); + if (!data_aligned) + return -ENOMEM; + + if (size == 2) { + *data_aligned = ((data << 16) | (data & 0xFFFF)); + } else if (size == 1) { + u32 temp_data = data & 0xFF; + + *data_aligned = ((temp_data << 24) | (temp_data << 16) | + (temp_data << 8) | temp_data); + } else { + *data_aligned = data; + } + size = 4; + + status = rsi_sdio_master_access_msword(adapter, (addr >> 16)); + if (status < 0) { + rsi_dbg(ERR_ZONE, + "%s: Unable to set ms word to common reg\n", + __func__); + kfree(data_aligned); + return -EIO; + } + addr = addr & 0xFFFF; + + /* Bring TA out of reset */ + status = rsi_sdio_write_register_multiple + (adapter, + (addr | RSI_SD_REQUEST_MASTER), + (u8 *)data_aligned, size); + if (status < 0) + rsi_dbg(ERR_ZONE, + "%s: Unable to do AHB reg write\n", __func__); + + kfree(data_aligned); + return status; +} + +/** + * rsi_sdio_host_intf_write_pkt() - This function writes the packet to device. + * @adapter: Pointer to the adapter structure. + * @pkt: Pointer to the data to be written on to the device. + * @len: length of the data to be written on to the device. + * + * Return: 0 on success, -1 on failure. + */ +static int rsi_sdio_host_intf_write_pkt(struct rsi_hw *adapter, + u8 *pkt, + u32 len) +{ + struct rsi_91x_sdiodev *dev = + (struct rsi_91x_sdiodev *)adapter->rsi_dev; + u32 block_size = dev->tx_blk_size; + u32 num_blocks, address, length; + u32 queueno; + int status; + + queueno = ((pkt[1] >> 4) & 0xf); + if (queueno == RSI_BT_MGMT_Q || queueno == RSI_BT_DATA_Q) + queueno = RSI_BT_Q; + + num_blocks = len / block_size; + + if (len % block_size) + num_blocks++; + + address = (num_blocks * block_size | (queueno << 12)); + length = num_blocks * block_size; + + status = rsi_sdio_write_register_multiple(adapter, + address, + (u8 *)pkt, + length); + if (status) + rsi_dbg(ERR_ZONE, "%s: Unable to write onto the card: %d\n", + __func__, status); + rsi_dbg(DATA_TX_ZONE, "%s: Successfully written onto card\n", __func__); + return status; +} + +/** + * rsi_sdio_host_intf_read_pkt() - This function reads the packet + from the device. + * @adapter: Pointer to the adapter data structure. + * @pkt: Pointer to the packet data to be read from the the device. + * @length: Length of the data to be read from the device. + * + * Return: 0 on success, -1 on failure. + */ +int rsi_sdio_host_intf_read_pkt(struct rsi_hw *adapter, + u8 *pkt, + u32 length) +{ + int status = -EINVAL; + + if (!length) { + rsi_dbg(ERR_ZONE, "%s: Pkt size is zero\n", __func__); + return status; + } + + status = rsi_sdio_read_register_multiple(adapter, + length, + (u8 *)pkt, + length); /*num of bytes*/ + + if (status) + rsi_dbg(ERR_ZONE, "%s: Failed to read frame: %d\n", __func__, + status); + return status; +} + +/** + * rsi_init_sdio_interface() - This function does init specific to SDIO. + * + * @adapter: Pointer to the adapter data structure. + * @pkt: Pointer to the packet data to be read from the the device. + * + * Return: 0 on success, -1 on failure. + */ + +static int rsi_init_sdio_interface(struct rsi_hw *adapter, + struct sdio_func *pfunction) +{ + struct rsi_91x_sdiodev *rsi_91x_dev; + int status; + + rsi_91x_dev = kzalloc(sizeof(*rsi_91x_dev), GFP_KERNEL); + if (!rsi_91x_dev) + return -ENOMEM; + + adapter->rsi_dev = rsi_91x_dev; + + sdio_claim_host(pfunction); + + pfunction->enable_timeout = 100; + status = sdio_enable_func(pfunction); + if (status) { + rsi_dbg(ERR_ZONE, "%s: Failed to enable interface\n", __func__); + sdio_release_host(pfunction); + return status; + } + + rsi_dbg(INIT_ZONE, "%s: Enabled the interface\n", __func__); + + rsi_91x_dev->pfunction = pfunction; + adapter->device = &pfunction->dev; + + sdio_set_drvdata(pfunction, adapter); + + status = rsi_setupcard(adapter); + if (status) { + rsi_dbg(ERR_ZONE, "%s: Failed to setup card\n", __func__); + goto fail; + } + + rsi_dbg(INIT_ZONE, "%s: Setup card successfully\n", __func__); + + status = rsi_init_sdio_slave_regs(adapter); + if (status) { + rsi_dbg(ERR_ZONE, "%s: Failed to init slave regs\n", __func__); + goto fail; + } + sdio_release_host(pfunction); + + adapter->determine_event_timeout = rsi_sdio_determine_event_timeout; + adapter->check_hw_queue_status = rsi_sdio_check_buffer_status; + +#ifdef CPTCFG_RSI_DEBUGFS + adapter->num_debugfs_entries = MAX_DEBUGFS_ENTRIES; +#endif + return 0; +fail: + sdio_disable_func(pfunction); + sdio_release_host(pfunction); + return status; +} + +static int rsi_sdio_reinit_device(struct rsi_hw *adapter) +{ + struct rsi_91x_sdiodev *sdev = adapter->rsi_dev; + struct sdio_func *pfunction = sdev->pfunction; + int ii; + + for (ii = 0; ii < NUM_SOFT_QUEUES; ii++) + skb_queue_purge(&adapter->priv->tx_queue[ii]); + + /* Initialize device again */ + sdio_claim_host(pfunction); + + sdio_release_irq(pfunction); + rsi_reset_card(pfunction); + + sdio_enable_func(pfunction); + rsi_setupcard(adapter); + rsi_init_sdio_slave_regs(adapter); + sdio_claim_irq(pfunction, rsi_handle_interrupt); + rsi_hal_device_init(adapter); + + sdio_release_host(pfunction); + + return 0; +} + +static int rsi_sdio_ta_reset(struct rsi_hw *adapter) +{ + int status; + u32 addr; + u8 *data; + + data = kzalloc(RSI_9116_REG_SIZE, GFP_KERNEL); + if (!data) + return -ENOMEM; + + status = rsi_sdio_master_access_msword(adapter, TA_BASE_ADDR); + if (status < 0) { + rsi_dbg(ERR_ZONE, + "Unable to set ms word to common reg\n"); + goto err; + } + + rsi_dbg(INIT_ZONE, "%s: Bring TA out of reset\n", __func__); + put_unaligned_le32(TA_HOLD_THREAD_VALUE, data); + addr = TA_HOLD_THREAD_REG | RSI_SD_REQUEST_MASTER; + status = rsi_sdio_write_register_multiple(adapter, addr, + (u8 *)data, + RSI_9116_REG_SIZE); + if (status < 0) { + rsi_dbg(ERR_ZONE, "Unable to hold TA threads\n"); + goto err; + } + + put_unaligned_le32(TA_SOFT_RST_CLR, data); + addr = TA_SOFT_RESET_REG | RSI_SD_REQUEST_MASTER; + status = rsi_sdio_write_register_multiple(adapter, addr, + (u8 *)data, + RSI_9116_REG_SIZE); + if (status < 0) { + rsi_dbg(ERR_ZONE, "Unable to get TA out of reset\n"); + goto err; + } + + put_unaligned_le32(TA_PC_ZERO, data); + addr = TA_TH0_PC_REG | RSI_SD_REQUEST_MASTER; + status = rsi_sdio_write_register_multiple(adapter, addr, + (u8 *)data, + RSI_9116_REG_SIZE); + if (status < 0) { + rsi_dbg(ERR_ZONE, "Unable to Reset TA PC value\n"); + status = -EINVAL; + goto err; + } + + put_unaligned_le32(TA_RELEASE_THREAD_VALUE, data); + addr = TA_RELEASE_THREAD_REG | RSI_SD_REQUEST_MASTER; + status = rsi_sdio_write_register_multiple(adapter, addr, + (u8 *)data, + RSI_9116_REG_SIZE); + if (status < 0) { + rsi_dbg(ERR_ZONE, "Unable to release TA threads\n"); + goto err; + } + + status = rsi_sdio_master_access_msword(adapter, MISC_CFG_BASE_ADDR); + if (status < 0) { + rsi_dbg(ERR_ZONE, "Unable to set ms word to common reg\n"); + goto err; + } + rsi_dbg(INIT_ZONE, "***** TA Reset done *****\n"); + +err: + kfree(data); + return status; +} + +static struct rsi_host_intf_ops sdio_host_intf_ops = { + .write_pkt = rsi_sdio_host_intf_write_pkt, + .read_pkt = rsi_sdio_host_intf_read_pkt, + .master_access_msword = rsi_sdio_master_access_msword, + .read_reg_multiple = rsi_sdio_read_register_multiple, + .write_reg_multiple = rsi_sdio_write_register_multiple, + .master_reg_read = rsi_sdio_master_reg_read, + .master_reg_write = rsi_sdio_master_reg_write, + .load_data_master_write = rsi_sdio_load_data_master_write, + .reinit_device = rsi_sdio_reinit_device, + .ta_reset = rsi_sdio_ta_reset, +}; + +/** + * rsi_probe() - This function is called by kernel when the driver provided + * Vendor and device IDs are matched. All the initialization + * work is done here. + * @pfunction: Pointer to the sdio_func structure. + * @id: Pointer to sdio_device_id structure. + * + * Return: 0 on success, 1 on failure. + */ +static int rsi_probe(struct sdio_func *pfunction, + const struct sdio_device_id *id) +{ + struct rsi_hw *adapter; + struct rsi_91x_sdiodev *sdev; + int status = -EINVAL; + + rsi_dbg(INIT_ZONE, "%s: Init function called\n", __func__); + + adapter = rsi_91x_init(dev_oper_mode); + if (!adapter) { + rsi_dbg(ERR_ZONE, "%s: Failed to init os intf ops\n", + __func__); + return -EINVAL; + } + adapter->rsi_host_intf = RSI_HOST_INTF_SDIO; + adapter->host_intf_ops = &sdio_host_intf_ops; + + if (rsi_init_sdio_interface(adapter, pfunction)) { + rsi_dbg(ERR_ZONE, "%s: Failed to init sdio interface\n", + __func__); + status = -EIO; + goto fail_free_adapter; + } + + if (pfunction->device == RSI_SDIO_PID_9113) { + rsi_dbg(ERR_ZONE, "%s: 9113 module detected\n", __func__); + adapter->device_model = RSI_DEV_9113; + } else if (pfunction->device == RSI_SDIO_PID_9116) { + rsi_dbg(ERR_ZONE, "%s: 9116 module detected\n", __func__); + adapter->device_model = RSI_DEV_9116; + } else { + rsi_dbg(ERR_ZONE, + "%s: Unsupported RSI device id 0x%x\n", __func__, + pfunction->device); + goto fail_free_adapter; + } + + sdev = (struct rsi_91x_sdiodev *)adapter->rsi_dev; + rsi_init_event(&sdev->rx_thread.event); + status = rsi_create_kthread(adapter->priv, &sdev->rx_thread, + rsi_sdio_rx_thread, "SDIO-RX-Thread"); + if (status) { + rsi_dbg(ERR_ZONE, "%s: Unable to init rx thrd\n", __func__); + goto fail_kill_thread; + } + skb_queue_head_init(&sdev->rx_q.head); + sdev->rx_q.num_rx_pkts = 0; + + sdio_claim_host(pfunction); + if (sdio_claim_irq(pfunction, rsi_handle_interrupt)) { + rsi_dbg(ERR_ZONE, "%s: Failed to request IRQ\n", __func__); + sdio_release_host(pfunction); + status = -EIO; + goto fail_claim_irq; + } + sdio_release_host(pfunction); + rsi_dbg(INIT_ZONE, "%s: Registered Interrupt handler\n", __func__); + + if (rsi_hal_device_init(adapter)) { + rsi_dbg(ERR_ZONE, "%s: Failed in device init\n", __func__); + status = -EINVAL; + goto fail_dev_init; + } + rsi_dbg(INFO_ZONE, "===> RSI Device Init Done <===\n"); + + if (rsi_sdio_master_access_msword(adapter, MISC_CFG_BASE_ADDR)) { + rsi_dbg(ERR_ZONE, "%s: Unable to set ms word reg\n", __func__); + status = -EIO; + goto fail_dev_init; + } + + adapter->priv->hibernate_resume = false; + adapter->priv->reinit_hw = false; + return 0; + +fail_dev_init: + sdio_claim_host(pfunction); + sdio_release_irq(pfunction); + sdio_release_host(pfunction); +fail_claim_irq: + rsi_kill_thread(&sdev->rx_thread); +fail_kill_thread: + sdio_claim_host(pfunction); + sdio_disable_func(pfunction); + sdio_release_host(pfunction); +fail_free_adapter: + rsi_91x_deinit(adapter); + rsi_dbg(ERR_ZONE, "%s: Failed in probe...Exiting\n", __func__); + return status; +} + +static void ulp_read_write(struct rsi_hw *adapter, u16 addr, u32 data, + u16 len_in_bits) +{ + rsi_sdio_master_reg_write(adapter, RSI_GSPI_DATA_REG1, + ((addr << 6) | ((data >> 16) & 0xffff)), 2); + rsi_sdio_master_reg_write(adapter, RSI_GSPI_DATA_REG0, + (data & 0xffff), 2); + rsi_sdio_master_reg_write(adapter, RSI_GSPI_CTRL_REG0, + RSI_GSPI_CTRL_REG0_VALUE, 2); + rsi_sdio_master_reg_write(adapter, RSI_GSPI_CTRL_REG1, + ((len_in_bits - 1) | RSI_GSPI_TRIG), 2); + msleep(20); +} + +/*This function resets and re-initializes the chip.*/ +static void rsi_reset_chip(struct rsi_hw *adapter) +{ + u8 *data; + u8 sdio_interrupt_status = 0; + u8 request = 1; + int ret; + + data = kzalloc(sizeof(u32), GFP_KERNEL); + if (!data) + return; + + rsi_dbg(INFO_ZONE, "Writing disable to wakeup register\n"); + ret = rsi_sdio_write_register(adapter, 0, SDIO_WAKEUP_REG, &request); + if (ret < 0) { + rsi_dbg(ERR_ZONE, + "%s: Failed to write SDIO wakeup register\n", __func__); + goto err; + } + msleep(20); + ret = rsi_sdio_read_register(adapter, RSI_FN1_INT_REGISTER, + &sdio_interrupt_status); + if (ret < 0) { + rsi_dbg(ERR_ZONE, "%s: Failed to Read Intr Status Register\n", + __func__); + goto err; + } + rsi_dbg(INFO_ZONE, "%s: Intr Status Register value = %d\n", + __func__, sdio_interrupt_status); + + /* Put Thread-Arch processor on hold */ + if (rsi_sdio_master_access_msword(adapter, TA_BASE_ADDR)) { + rsi_dbg(ERR_ZONE, + "%s: Unable to set ms word to common reg\n", + __func__); + goto err; + } + + put_unaligned_le32(TA_HOLD_THREAD_VALUE, data); + if (rsi_sdio_write_register_multiple(adapter, TA_HOLD_THREAD_REG | + RSI_SD_REQUEST_MASTER, + data, 4)) { + rsi_dbg(ERR_ZONE, + "%s: Unable to hold Thread-Arch processor threads\n", + __func__); + goto err; + } + + /* This msleep will ensure Thread-Arch processor to go to hold + * and any pending dma transfers to rf spi in device to finish. + */ + msleep(100); + if (adapter->device_model != RSI_DEV_9116) { + ulp_read_write(adapter, RSI_ULP_RESET_REG, RSI_ULP_WRITE_0, 32); + ulp_read_write(adapter, + RSI_WATCH_DOG_TIMER_1, RSI_ULP_WRITE_2, 32); + ulp_read_write(adapter, RSI_WATCH_DOG_TIMER_2, RSI_ULP_WRITE_0, + 32); + ulp_read_write(adapter, RSI_WATCH_DOG_DELAY_TIMER_1, + RSI_ULP_WRITE_50, 32); + ulp_read_write(adapter, RSI_WATCH_DOG_DELAY_TIMER_2, + RSI_ULP_WRITE_0, 32); + ulp_read_write(adapter, RSI_WATCH_DOG_TIMER_ENABLE, + RSI_ULP_TIMER_ENABLE, 32); + } else { + if ((rsi_sdio_master_reg_write(adapter, + NWP_WWD_INTERRUPT_TIMER, + NWP_WWD_INT_TIMER_CLKS, + RSI_9116_REG_SIZE)) < 0) { + rsi_dbg(ERR_ZONE, "Failed to write to intr timer\n"); + } + if ((rsi_sdio_master_reg_write(adapter, + NWP_WWD_SYSTEM_RESET_TIMER, + NWP_WWD_SYS_RESET_TIMER_CLKS, + RSI_9116_REG_SIZE)) < 0) { + rsi_dbg(ERR_ZONE, + "Failed to write to system reset timer\n"); + } + if ((rsi_sdio_master_reg_write(adapter, + NWP_WWD_MODE_AND_RSTART, + NWP_WWD_TIMER_DISABLE, + RSI_9116_REG_SIZE)) < 0) { + rsi_dbg(ERR_ZONE, + "Failed to write to mode and restart\n"); + } + rsi_dbg(ERR_ZONE, "***** Watch Dog Reset Successful *****\n"); + } + /* This msleep will be sufficient for the ulp + * read write operations to complete for chip reset. + */ + msleep(500); +err: + kfree(data); + return; +} + +/** + * rsi_disconnect() - This function performs the reverse of the probe function. + * @pfunction: Pointer to the sdio_func structure. + * + * Return: void. + */ +static void rsi_disconnect(struct sdio_func *pfunction) +{ + struct rsi_hw *adapter = sdio_get_drvdata(pfunction); + struct rsi_91x_sdiodev *dev; + + if (!adapter) + return; + + dev = (struct rsi_91x_sdiodev *)adapter->rsi_dev; + + rsi_kill_thread(&dev->rx_thread); + sdio_claim_host(pfunction); + sdio_release_irq(pfunction); + sdio_release_host(pfunction); + mdelay(10); + + rsi_mac80211_detach(adapter); + mdelay(10); + + if (IS_ENABLED(CPTCFG_RSI_COEX) && adapter->priv->coex_mode > 1 && + adapter->priv->bt_adapter) { + rsi_bt_ops.detach(adapter->priv->bt_adapter); + adapter->priv->bt_adapter = NULL; + } + + /* Reset Chip */ + rsi_reset_chip(adapter); + + /* Resetting to take care of the case, where-in driver is re-loaded */ + sdio_claim_host(pfunction); + rsi_reset_card(pfunction); + sdio_disable_func(pfunction); + sdio_release_host(pfunction); + dev->write_fail = 2; + rsi_91x_deinit(adapter); + rsi_dbg(ERR_ZONE, "##### RSI SDIO device disconnected #####\n"); + +} + +#ifdef CONFIG_PM +static int rsi_set_sdio_pm_caps(struct rsi_hw *adapter) +{ + struct rsi_91x_sdiodev *dev = + (struct rsi_91x_sdiodev *)adapter->rsi_dev; + struct sdio_func *func = dev->pfunction; + int ret; + + ret = sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER); + if (ret) + rsi_dbg(ERR_ZONE, "Set sdio keep pwr flag failed: %d\n", ret); + + return ret; +} + +static int rsi_sdio_disable_interrupts(struct sdio_func *pfunc) +{ + struct rsi_hw *adapter = sdio_get_drvdata(pfunc); + u8 isr_status = 0, data = 0; + int ret; + unsigned long t1; + + rsi_dbg(INFO_ZONE, "Waiting for interrupts to be cleared.."); + t1 = jiffies; + do { + rsi_sdio_read_register(adapter, RSI_FN1_INT_REGISTER, + &isr_status); + rsi_dbg(INFO_ZONE, "."); + } while ((isr_status) && (jiffies_to_msecs(jiffies - t1) < 20)); + rsi_dbg(INFO_ZONE, "Interrupts cleared\n"); + + sdio_claim_host(pfunc); + ret = rsi_cmd52readbyte(pfunc->card, RSI_INT_ENABLE_REGISTER, &data); + if (ret < 0) { + rsi_dbg(ERR_ZONE, + "%s: Failed to read int enable register\n", + __func__); + goto done; + } + + data &= RSI_INT_ENABLE_MASK; + ret = rsi_cmd52writebyte(pfunc->card, RSI_INT_ENABLE_REGISTER, data); + if (ret < 0) { + rsi_dbg(ERR_ZONE, + "%s: Failed to write to int enable register\n", + __func__); + goto done; + } + ret = rsi_cmd52readbyte(pfunc->card, RSI_INT_ENABLE_REGISTER, &data); + if (ret < 0) { + rsi_dbg(ERR_ZONE, + "%s: Failed to read int enable register\n", + __func__); + goto done; + } + rsi_dbg(INFO_ZONE, "int enable reg content = %x\n", data); + +done: + sdio_release_host(pfunc); + return ret; +} + +static int rsi_sdio_enable_interrupts(struct sdio_func *pfunc) +{ + u8 data; + int ret; + struct rsi_hw *adapter = sdio_get_drvdata(pfunc); + struct rsi_common *common = adapter->priv; + + sdio_claim_host(pfunc); + ret = rsi_cmd52readbyte(pfunc->card, RSI_INT_ENABLE_REGISTER, &data); + if (ret < 0) { + rsi_dbg(ERR_ZONE, + "%s: Failed to read int enable register\n", __func__); + goto done; + } + + data |= ~RSI_INT_ENABLE_MASK & 0xff; + + ret = rsi_cmd52writebyte(pfunc->card, RSI_INT_ENABLE_REGISTER, data); + if (ret < 0) { + rsi_dbg(ERR_ZONE, + "%s: Failed to write to int enable register\n", + __func__); + goto done; + } + + if ((common->wow_flags & RSI_WOW_ENABLED) && + (common->wow_flags & RSI_WOW_NO_CONNECTION)) + rsi_dbg(ERR_ZONE, + "##### Device can not wake up through WLAN\n"); + + ret = rsi_cmd52readbyte(pfunc->card, RSI_INT_ENABLE_REGISTER, &data); + if (ret < 0) { + rsi_dbg(ERR_ZONE, + "%s: Failed to read int enable register\n", __func__); + goto done; + } + rsi_dbg(INFO_ZONE, "int enable reg content = %x\n", data); + +done: + sdio_release_host(pfunc); + return ret; +} + +static int rsi_suspend(struct device *dev) +{ + int ret; + struct sdio_func *pfunction = dev_to_sdio_func(dev); + struct rsi_hw *adapter = sdio_get_drvdata(pfunction); + struct rsi_common *common; + + if (!adapter) { + rsi_dbg(ERR_ZONE, "Device is not ready\n"); + return -ENODEV; + } + common = adapter->priv; + rsi_sdio_disable_interrupts(pfunction); + + ret = rsi_set_sdio_pm_caps(adapter); + if (ret) + rsi_dbg(INFO_ZONE, + "Setting power management caps failed\n"); + common->fsm_state = FSM_CARD_NOT_READY; + + return 0; +} + +static int rsi_resume(struct device *dev) +{ + struct sdio_func *pfunction = dev_to_sdio_func(dev); + struct rsi_hw *adapter = sdio_get_drvdata(pfunction); + struct rsi_common *common = adapter->priv; + + common->fsm_state = FSM_MAC_INIT_DONE; + rsi_sdio_enable_interrupts(pfunction); + + return 0; +} + +static int rsi_freeze(struct device *dev) +{ + int ret; + struct sdio_func *pfunction = dev_to_sdio_func(dev); + struct rsi_hw *adapter = sdio_get_drvdata(pfunction); + struct rsi_common *common; + struct rsi_91x_sdiodev *sdev; + + rsi_dbg(INFO_ZONE, "SDIO Bus freeze ===>\n"); + + if (!adapter) { + rsi_dbg(ERR_ZONE, "Device is not ready\n"); + return -ENODEV; + } + common = adapter->priv; + sdev = (struct rsi_91x_sdiodev *)adapter->rsi_dev; + + if ((common->wow_flags & RSI_WOW_ENABLED) && + (common->wow_flags & RSI_WOW_NO_CONNECTION)) + rsi_dbg(ERR_ZONE, + "##### Device can not wake up through WLAN\n"); + + if (IS_ENABLED(CPTCFG_RSI_COEX) && common->coex_mode > 1 && + common->bt_adapter) { + rsi_bt_ops.detach(common->bt_adapter); + common->bt_adapter = NULL; + } + + ret = rsi_sdio_disable_interrupts(pfunction); + + if (sdev->write_fail) + rsi_dbg(INFO_ZONE, "###### Device is not ready #######\n"); + + ret = rsi_set_sdio_pm_caps(adapter); + if (ret) + rsi_dbg(INFO_ZONE, "Setting power management caps failed\n"); + + rsi_dbg(INFO_ZONE, "***** RSI module freezed *****\n"); + + return 0; +} + +static int rsi_thaw(struct device *dev) +{ + struct sdio_func *pfunction = dev_to_sdio_func(dev); + struct rsi_hw *adapter = sdio_get_drvdata(pfunction); + struct rsi_common *common = adapter->priv; + + rsi_dbg(ERR_ZONE, "SDIO Bus thaw =====>\n"); + + common->hibernate_resume = true; + common->fsm_state = FSM_CARD_NOT_READY; + common->iface_down = true; + + rsi_sdio_enable_interrupts(pfunction); + + rsi_dbg(INFO_ZONE, "***** RSI module thaw done *****\n"); + + return 0; +} + +static void rsi_shutdown(struct device *dev) +{ + struct sdio_func *pfunction = dev_to_sdio_func(dev); + struct rsi_hw *adapter = sdio_get_drvdata(pfunction); + struct rsi_91x_sdiodev *sdev = + (struct rsi_91x_sdiodev *)adapter->rsi_dev; + struct ieee80211_hw *hw = adapter->hw; + struct cfg80211_wowlan *wowlan = hw->wiphy->wowlan_config; + + rsi_dbg(ERR_ZONE, "SDIO Bus shutdown =====>\n"); + + if (rsi_config_wowlan(adapter, wowlan)) + rsi_dbg(ERR_ZONE, "Failed to configure WoWLAN\n"); + + if (IS_ENABLED(CPTCFG_RSI_COEX) && adapter->priv->coex_mode > 1 && + adapter->priv->bt_adapter) { + rsi_bt_ops.detach(adapter->priv->bt_adapter); + adapter->priv->bt_adapter = NULL; + } + + rsi_sdio_disable_interrupts(sdev->pfunction); + + if (sdev->write_fail) + rsi_dbg(INFO_ZONE, "###### Device is not ready #######\n"); + + if (rsi_set_sdio_pm_caps(adapter)) + rsi_dbg(INFO_ZONE, "Setting power management caps failed\n"); + + rsi_dbg(INFO_ZONE, "***** RSI module shut down *****\n"); +} + +static int rsi_restore(struct device *dev) +{ + struct sdio_func *pfunction = dev_to_sdio_func(dev); + struct rsi_hw *adapter = sdio_get_drvdata(pfunction); + struct rsi_common *common = adapter->priv; + + rsi_dbg(INFO_ZONE, "SDIO Bus restore ======>\n"); + common->hibernate_resume = true; + common->fsm_state = FSM_FW_NOT_LOADED; + common->iface_down = true; + + adapter->sc_nvifs = 0; + adapter->ps_state = PS_NONE; + + common->wow_flags = 0; + common->iface_down = false; + + rsi_dbg(INFO_ZONE, "RSI module restored\n"); + + return 0; +} +static const struct dev_pm_ops rsi_pm_ops = { + .suspend = rsi_suspend, + .resume = rsi_resume, + .freeze = rsi_freeze, + .thaw = rsi_thaw, + .restore = rsi_restore, +}; +#endif + +static const struct sdio_device_id rsi_dev_table[] = { + { SDIO_DEVICE(RSI_SDIO_VENDOR_ID, RSI_SDIO_PID_9113) }, + { SDIO_DEVICE(RSI_SDIO_VENDOR_ID, RSI_SDIO_PID_9116) }, + { /* Blank */}, +}; + +static struct sdio_driver rsi_driver = { + .name = "RSI-SDIO WLAN", + .probe = rsi_probe, + .remove = rsi_disconnect, + .id_table = rsi_dev_table, +#ifdef CONFIG_PM + .drv = { + .pm = &rsi_pm_ops, + .shutdown = rsi_shutdown, + } +#endif +}; + +/** + * rsi_module_init() - This function registers the sdio module. + * @void: Void. + * + * Return: 0 on success. + */ +static int rsi_module_init(void) +{ + int ret; + + ret = sdio_register_driver(&rsi_driver); + rsi_dbg(INIT_ZONE, "%s: Registering driver\n", __func__); + return ret; +} + +/** + * rsi_module_exit() - This function unregisters the sdio module. + * @void: Void. + * + * Return: None. + */ +static void rsi_module_exit(void) +{ + sdio_unregister_driver(&rsi_driver); + rsi_dbg(INFO_ZONE, "%s: Unregistering driver\n", __func__); +} + +module_init(rsi_module_init); +module_exit(rsi_module_exit); + +MODULE_AUTHOR("Redpine Signals Inc"); +MODULE_DESCRIPTION("Common SDIO layer for RSI drivers"); +MODULE_SUPPORTED_DEVICE("RSI-91x"); +MODULE_DEVICE_TABLE(sdio, rsi_dev_table); +MODULE_FIRMWARE(FIRMWARE_RSI9113); +MODULE_VERSION("0.1"); +MODULE_LICENSE("Dual BSD/GPL"); diff --git a/drivers/net/wireless/rsi/rsi_91x_sdio_ops.c b/drivers/net/wireless/rsi/rsi_91x_sdio_ops.c new file mode 100644 index 0000000..449f6d2 --- /dev/null +++ b/drivers/net/wireless/rsi/rsi_91x_sdio_ops.c @@ -0,0 +1,451 @@ +/** + * Copyright (c) 2014 Redpine Signals Inc. + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + */ + +#include <linux/firmware.h> +#include <net/rsi_91x.h> +#include "rsi_sdio.h" +#include "rsi_common.h" + +/** + * rsi_sdio_master_access_msword() - This function sets the AHB master access + * MS word in the SDIO slave registers. + * @adapter: Pointer to the adapter structure. + * @ms_word: ms word need to be initialized. + * + * Return: status: 0 on success, -1 on failure. + */ +int rsi_sdio_master_access_msword(struct rsi_hw *adapter, u16 ms_word) +{ + u8 byte; + u8 function = 0; + int status = 0; + + byte = (u8)(ms_word & 0x00FF); + + rsi_dbg(INIT_ZONE, + "%s: MASTER_ACCESS_MSBYTE:0x%x\n", __func__, byte); + + status = rsi_sdio_write_register(adapter, + function, + SDIO_MASTER_ACCESS_MSBYTE, + &byte); + if (status) { + rsi_dbg(ERR_ZONE, + "%s: fail to access MASTER_ACCESS_MSBYTE\n", + __func__); + return -1; + } + + byte = (u8)(ms_word >> 8); + + rsi_dbg(INIT_ZONE, "%s:MASTER_ACCESS_LSBYTE:0x%x\n", __func__, byte); + status = rsi_sdio_write_register(adapter, + function, + SDIO_MASTER_ACCESS_LSBYTE, + &byte); + return status; +} + +void rsi_sdio_rx_thread(struct rsi_common *common) +{ + struct rsi_hw *adapter = common->priv; + struct rsi_91x_sdiodev *sdev = adapter->rsi_dev; + struct sk_buff *skb; + int status; + + do { + rsi_wait_event(&sdev->rx_thread.event, EVENT_WAIT_FOREVER); + rsi_reset_event(&sdev->rx_thread.event); + + while (true) { + if (atomic_read(&sdev->rx_thread.thread_done)) + goto out; + + skb = skb_dequeue(&sdev->rx_q.head); + if (!skb) + break; + if (sdev->rx_q.num_rx_pkts > 0) + sdev->rx_q.num_rx_pkts--; + status = rsi_read_pkt(common, skb->data, skb->len); + if (status) { + rsi_dbg(ERR_ZONE, "Failed to read the packet\n"); + dev_kfree_skb(skb); + break; + } + dev_kfree_skb(skb); + } + } while (1); + +out: + rsi_dbg(INFO_ZONE, "%s: Terminated SDIO RX thread\n", __func__); + skb_queue_purge(&sdev->rx_q.head); + atomic_inc(&sdev->rx_thread.thread_done); + complete_and_exit(&sdev->rx_thread.completion, 0); +} + +/** + * rsi_process_pkt() - This Function reads rx_blocks register and figures out + * the size of the rx pkt. + * @common: Pointer to the driver private structure. + * + * Return: 0 on success, -1 on failure. + */ +static int rsi_process_pkt(struct rsi_common *common) +{ + struct rsi_hw *adapter = common->priv; + struct rsi_91x_sdiodev *dev = + (struct rsi_91x_sdiodev *)adapter->rsi_dev; + u8 num_blks = 0; + u32 rcv_pkt_len = 0; + int status = 0; + u8 value = 0; + struct sk_buff *skb; + + if (dev->rx_q.num_rx_pkts >= RSI_MAX_RX_PKTS) + return 0; + + num_blks = ((adapter->interrupt_status & 1) | + ((adapter->interrupt_status >> RECV_NUM_BLOCKS) << 1)); + + if (!num_blks) { + status = rsi_sdio_read_register(adapter, + SDIO_RX_NUM_BLOCKS_REG, + &value); + if (status) { + rsi_dbg(ERR_ZONE, + "%s: Failed to read pkt length from the card:\n", + __func__); + return status; + } + num_blks = value & 0x1f; + } + + if (dev->write_fail == 2) + rsi_sdio_ack_intr(common->priv, (1 << MSDU_PKT_PENDING)); + + if (unlikely(!num_blks)) { + dev->write_fail = 2; + return -1; + } + + rcv_pkt_len = (num_blks * 256); + + skb = dev_alloc_skb(rcv_pkt_len); + if (!skb) + return -ENOMEM; + + status = rsi_sdio_host_intf_read_pkt(adapter, skb->data, rcv_pkt_len); + if (status) { + rsi_dbg(ERR_ZONE, "%s: Failed to read packet from card\n", + __func__); + dev_kfree_skb(skb); + return status; + } + skb_put(skb, rcv_pkt_len); + skb_queue_tail(&dev->rx_q.head, skb); + dev->rx_q.num_rx_pkts++; + + rsi_set_event(&dev->rx_thread.event); + + return 0; +} + +/** + * rsi_init_sdio_slave_regs() - This function does the actual initialization + * of SDBUS slave registers. + * @adapter: Pointer to the adapter structure. + * + * Return: status: 0 on success, -1 on failure. + */ +int rsi_init_sdio_slave_regs(struct rsi_hw *adapter) +{ + struct rsi_91x_sdiodev *dev = + (struct rsi_91x_sdiodev *)adapter->rsi_dev; + u8 function = 0; + u8 byte; + int status = 0; + + if (dev->next_read_delay) { + byte = dev->next_read_delay; + status = rsi_sdio_write_register(adapter, + function, + SDIO_NXT_RD_DELAY2, + &byte); + if (status) { + rsi_dbg(ERR_ZONE, + "%s: Failed to write SDIO_NXT_RD_DELAY2\n", + __func__); + return -1; + } + } + + if (dev->sdio_high_speed_enable) { + rsi_dbg(INIT_ZONE, "%s: Enabling SDIO High speed\n", __func__); + byte = 0x3; + + status = rsi_sdio_write_register(adapter, + function, + SDIO_REG_HIGH_SPEED, + &byte); + if (status) { + rsi_dbg(ERR_ZONE, + "%s: Failed to enable SDIO high speed\n", + __func__); + return -1; + } + } + + /* This tells SDIO FIFO when to start read to host */ + rsi_dbg(INIT_ZONE, "%s: Initializing SDIO read start level\n", __func__); + byte = 0x24; + + status = rsi_sdio_write_register(adapter, + function, + SDIO_READ_START_LVL, + &byte); + if (status) { + rsi_dbg(ERR_ZONE, + "%s: Failed to write SDIO_READ_START_LVL\n", __func__); + return -1; + } + + rsi_dbg(INIT_ZONE, "%s: Initializing FIFO ctrl registers\n", __func__); + byte = (128 - 32); + + status = rsi_sdio_write_register(adapter, + function, + SDIO_READ_FIFO_CTL, + &byte); + if (status) { + rsi_dbg(ERR_ZONE, + "%s: Failed to write SDIO_READ_FIFO_CTL\n", __func__); + return -1; + } + + byte = 32; + status = rsi_sdio_write_register(adapter, + function, + SDIO_WRITE_FIFO_CTL, + &byte); + if (status) { + rsi_dbg(ERR_ZONE, + "%s: Failed to write SDIO_WRITE_FIFO_CTL\n", __func__); + return -1; + } + + return 0; +} + +/** + * rsi_interrupt_handler() - This function read and process SDIO interrupts. + * @adapter: Pointer to the adapter structure. + * + * Return: None. + */ +void rsi_interrupt_handler(struct rsi_hw *adapter) +{ + struct rsi_common *common = adapter->priv; + struct rsi_91x_sdiodev *dev = + (struct rsi_91x_sdiodev *)adapter->rsi_dev; + int status; + enum sdio_interrupt_type isr_type; + u8 isr_status = 0; + u8 fw_status = 0; + + dev->rx_info.sdio_int_counter++; + + do { + mutex_lock(&common->rx_lock); + status = rsi_sdio_read_register(common->priv, + RSI_FN1_INT_REGISTER, + &isr_status); + if (status) { + rsi_dbg(ERR_ZONE, + "%s: Failed to Read Intr Status Register\n", + __func__); + mutex_unlock(&common->rx_lock); + return; + } + adapter->interrupt_status = isr_status; + + if (isr_status == 0) { + rsi_set_event(&common->tx_thread.event); + dev->rx_info.sdio_intr_status_zero++; + mutex_unlock(&common->rx_lock); + return; + } + + rsi_dbg(ISR_ZONE, "%s: Intr_status = %x %d %d\n", + __func__, isr_status, (1 << MSDU_PKT_PENDING), + (1 << FW_ASSERT_IND)); + + do { + RSI_GET_SDIO_INTERRUPT_TYPE(isr_status, isr_type); + + switch (isr_type) { + case BUFFER_AVAILABLE: + status = rsi_sdio_check_buffer_status(adapter, + 0); + if (status < 0) + rsi_dbg(ERR_ZONE, + "%s: Failed to check buffer status\n", + __func__); + rsi_sdio_ack_intr(common->priv, + (1 << PKT_BUFF_AVAILABLE)); + rsi_set_event(&common->tx_thread.event); + + rsi_dbg(ISR_ZONE, + "%s: ==> BUFFER_AVAILABLE <==\n", + __func__); + dev->buff_status_updated = true; + break; + + case FIRMWARE_ASSERT_IND: + rsi_dbg(ERR_ZONE, + "%s: ==> FIRMWARE Assert <==\n", + __func__); + status = rsi_sdio_read_register(common->priv, + SDIO_FW_STATUS_REG, + &fw_status); + if (status) { + rsi_dbg(ERR_ZONE, + "%s: Failed to read f/w reg\n", + __func__); + } else { + rsi_dbg(ERR_ZONE, + "%s: Firmware Status is 0x%x\n", + __func__ , fw_status); + rsi_sdio_ack_intr(common->priv, + (1 << FW_ASSERT_IND)); + } + + common->fsm_state = FSM_CARD_NOT_READY; + break; + + case MSDU_PACKET_PENDING: + rsi_dbg(ISR_ZONE, "Pkt pending interrupt\n"); + dev->rx_info.total_sdio_msdu_pending_intr++; + + status = rsi_process_pkt(common); + if (status) { + rsi_dbg(ERR_ZONE, + "%s: Failed to read pkt\n", + __func__); + mutex_unlock(&common->rx_lock); + return; + } + break; + default: + rsi_sdio_ack_intr(common->priv, isr_status); + dev->rx_info.total_sdio_unknown_intr++; + isr_status = 0; + rsi_dbg(ISR_ZONE, + "Unknown Interrupt %x\n", + isr_status); + break; + } + isr_status ^= BIT(isr_type - 1); + } while (isr_status); + mutex_unlock(&common->rx_lock); + } while (1); +} + +/* This function is used to read buffer status register and + * set relevant fields in rsi_91x_sdiodev struct. + */ +int rsi_sdio_check_buffer_status(struct rsi_hw *adapter, u8 q_num) +{ + struct rsi_common *common = adapter->priv; + struct rsi_91x_sdiodev *dev = + (struct rsi_91x_sdiodev *)adapter->rsi_dev; + u8 buf_status = 0; + int status = 0; + static int counter = 4; + + if (!dev->buff_status_updated && counter) { + counter--; + goto out; + } + + dev->buff_status_updated = false; + status = rsi_sdio_read_register(common->priv, + RSI_DEVICE_BUFFER_STATUS_REGISTER, + &buf_status); + + if (status) { + rsi_dbg(ERR_ZONE, + "%s: Failed to read status register\n", __func__); + return -1; + } + + if (buf_status & (BIT(PKT_MGMT_BUFF_FULL))) { + if (!dev->rx_info.mgmt_buffer_full) + dev->rx_info.mgmt_buf_full_counter++; + dev->rx_info.mgmt_buffer_full = true; + } else { + dev->rx_info.mgmt_buffer_full = false; + } + + if (buf_status & (BIT(PKT_BUFF_FULL))) { + if (!dev->rx_info.buffer_full) + dev->rx_info.buf_full_counter++; + dev->rx_info.buffer_full = true; + } else { + dev->rx_info.buffer_full = false; + } + + if (buf_status & (BIT(PKT_BUFF_SEMI_FULL))) { + if (!dev->rx_info.semi_buffer_full) + dev->rx_info.buf_semi_full_counter++; + dev->rx_info.semi_buffer_full = true; + } else { + dev->rx_info.semi_buffer_full = false; + } + + if (dev->rx_info.mgmt_buffer_full || dev->rx_info.buf_full_counter) + counter = 1; + else + counter = 4; + +out: + if ((q_num == MGMT_SOFT_Q) && (dev->rx_info.mgmt_buffer_full)) + return QUEUE_FULL; + + if ((q_num < MGMT_SOFT_Q) && (dev->rx_info.buffer_full)) + return QUEUE_FULL; + + return QUEUE_NOT_FULL; +} + +/** + * rsi_sdio_determine_event_timeout() - This Function determines the event + * timeout duration. + * @adapter: Pointer to the adapter structure. + * + * Return: timeout duration is returned. + */ +int rsi_sdio_determine_event_timeout(struct rsi_hw *adapter) +{ + struct rsi_91x_sdiodev *dev = + (struct rsi_91x_sdiodev *)adapter->rsi_dev; + + /* Once buffer full is seen, event timeout to occur every 2 msecs */ + if (dev->rx_info.buffer_full) + return 2; + + return EVENT_WAIT_FOREVER; +} diff --git a/drivers/net/wireless/rsi/rsi_91x_usb.c b/drivers/net/wireless/rsi/rsi_91x_usb.c new file mode 100644 index 0000000..3f270a1 --- /dev/null +++ b/drivers/net/wireless/rsi/rsi_91x_usb.c @@ -0,0 +1,925 @@ +/** + * Copyright (c) 2014 Redpine Signals Inc. + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + */ + +#include <linux/module.h> +#include <linux/types.h> +#include <net/rsi_91x.h> +#include "rsi_usb.h" +#include "rsi_hal.h" +#include "rsi_coex.h" + +/* Default operating mode is wlan STA + BT */ +static u16 dev_oper_mode = DEV_OPMODE_STA_BT_DUAL; +module_param(dev_oper_mode, ushort, 0444); +MODULE_PARM_DESC(dev_oper_mode, + "1[Wi-Fi], 4[BT], 8[BT LE], 5[Wi-Fi STA + BT classic]\n" + "9[Wi-Fi STA + BT LE], 13[Wi-Fi STA + BT classic + BT LE]\n" + "6[AP + BT classic], 14[AP + BT classic + BT LE]"); + +static int rsi_rx_urb_submit(struct rsi_hw *adapter, u8 ep_num, gfp_t flags); + +/** + * rsi_usb_card_write() - This function writes to the USB Card. + * @adapter: Pointer to the adapter structure. + * @buf: Pointer to the buffer from where the data has to be taken. + * @len: Length to be written. + * @endpoint: Type of endpoint. + * + * Return: status: 0 on success, a negative error code on failure. + */ +static int rsi_usb_card_write(struct rsi_hw *adapter, + u8 *buf, + u16 len, + u8 endpoint) +{ + struct rsi_91x_usbdev *dev = (struct rsi_91x_usbdev *)adapter->rsi_dev; + int status; + u8 *seg = dev->tx_buffer; + int transfer; + int ep = dev->bulkout_endpoint_addr[endpoint - 1]; + + memset(seg, 0, len + RSI_USB_TX_HEAD_ROOM); + memcpy(seg + RSI_USB_TX_HEAD_ROOM, buf, len); + len += RSI_USB_TX_HEAD_ROOM; + transfer = len; + status = usb_bulk_msg(dev->usbdev, + usb_sndbulkpipe(dev->usbdev, ep), + (void *)seg, + (int)len, + &transfer, + HZ * 5); + + if (status < 0) { + rsi_dbg(ERR_ZONE, + "Card write failed with error code :%10d\n", status); + dev->write_fail = 1; + } + return status; +} + +/** + * rsi_write_multiple() - This function writes multiple bytes of information + * to the USB card. + * @adapter: Pointer to the adapter structure. + * @addr: Address of the register. + * @data: Pointer to the data that has to be written. + * @count: Number of multiple bytes to be written. + * + * Return: 0 on success, a negative error code on failure. + */ +static int rsi_write_multiple(struct rsi_hw *adapter, + u8 endpoint, + u8 *data, + u32 count) +{ + struct rsi_91x_usbdev *dev; + + if (!adapter) + return -ENODEV; + + if (endpoint == 0) + return -EINVAL; + + dev = (struct rsi_91x_usbdev *)adapter->rsi_dev; + if (dev->write_fail) + return -ENETDOWN; + + return rsi_usb_card_write(adapter, data, count, endpoint); +} + +/** + * rsi_find_bulk_in_and_out_endpoints() - This function initializes the bulk + * endpoints to the device. + * @interface: Pointer to the USB interface structure. + * @adapter: Pointer to the adapter structure. + * + * Return: ret_val: 0 on success, -ENOMEM on failure. + */ +static int rsi_find_bulk_in_and_out_endpoints(struct usb_interface *interface, + struct rsi_hw *adapter) +{ + struct rsi_91x_usbdev *dev = (struct rsi_91x_usbdev *)adapter->rsi_dev; + struct usb_host_interface *iface_desc; + struct usb_endpoint_descriptor *endpoint; + __le16 buffer_size; + int ii, bin_found = 0, bout_found = 0; + + iface_desc = interface->cur_altsetting; + + for (ii = 0; ii < iface_desc->desc.bNumEndpoints; ++ii) { + endpoint = &(iface_desc->endpoint[ii].desc); + + if (!dev->bulkin_endpoint_addr[bin_found] && + (endpoint->bEndpointAddress & USB_DIR_IN) && + ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == + USB_ENDPOINT_XFER_BULK)) { + buffer_size = endpoint->wMaxPacketSize; + dev->bulkin_size[bin_found] = buffer_size; + dev->bulkin_endpoint_addr[bin_found] = + endpoint->bEndpointAddress; + bin_found++; + } + + if (!dev->bulkout_endpoint_addr[bout_found] && + !(endpoint->bEndpointAddress & USB_DIR_IN) && + ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == + USB_ENDPOINT_XFER_BULK)) { + buffer_size = endpoint->wMaxPacketSize; + dev->bulkout_endpoint_addr[bout_found] = + endpoint->bEndpointAddress; + dev->bulkout_size[bout_found] = buffer_size; + bout_found++; + } + + if (bin_found >= MAX_BULK_EP || bout_found >= MAX_BULK_EP) + break; + } + + if (!(dev->bulkin_endpoint_addr[0]) && + dev->bulkout_endpoint_addr[0]) + return -EINVAL; + + return 0; +} + +#define RSI_USB_REQ_OUT (USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE) +#define RSI_USB_REQ_IN (USB_TYPE_VENDOR | USB_DIR_IN | USB_RECIP_DEVICE) + +/* rsi_usb_reg_read() - This function reads data from given register address. + * @usbdev: Pointer to the usb_device structure. + * @reg: Address of the register to be read. + * @value: Value to be read. + * @len: length of data to be read. + * + * Return: status: 0 on success, a negative error code on failure. + */ +static int rsi_usb_reg_read(struct usb_device *usbdev, + u32 reg, + u16 *value, + u16 len) +{ + u8 *buf; + int status = -ENOMEM; + + if (len > RSI_USB_CTRL_BUF_SIZE) + return -EINVAL; + + buf = kmalloc(RSI_USB_CTRL_BUF_SIZE, GFP_KERNEL); + if (!buf) + return status; + + status = usb_control_msg(usbdev, + usb_rcvctrlpipe(usbdev, 0), + USB_VENDOR_REGISTER_READ, + RSI_USB_REQ_IN, + ((reg & 0xffff0000) >> 16), (reg & 0xffff), + (void *)buf, + len, + USB_CTRL_GET_TIMEOUT); + + *value = (buf[0] | (buf[1] << 8)); + if (status < 0) { + rsi_dbg(ERR_ZONE, + "%s: Reg read failed with error code :%d\n", + __func__, status); + } + kfree(buf); + + return status; +} + +/** + * rsi_usb_reg_write() - This function writes the given data into the given + * register address. + * @usbdev: Pointer to the usb_device structure. + * @reg: Address of the register. + * @value: Value to write. + * @len: Length of data to be written. + * + * Return: status: 0 on success, a negative error code on failure. + */ +static int rsi_usb_reg_write(struct usb_device *usbdev, + u32 reg, + u32 value, + u16 len) +{ + u8 *usb_reg_buf; + int status = -ENOMEM; + + if (len > RSI_USB_CTRL_BUF_SIZE) + return -EINVAL; + + usb_reg_buf = kmalloc(RSI_USB_CTRL_BUF_SIZE, GFP_KERNEL); + if (!usb_reg_buf) + return status; + + usb_reg_buf[0] = (cpu_to_le32(value) & 0x00ff); + usb_reg_buf[1] = (cpu_to_le32(value) & 0xff00) >> 8; + usb_reg_buf[2] = (cpu_to_le32(value) & 0x00ff0000) >> 16; + usb_reg_buf[3] = (cpu_to_le32(value) & 0xff000000) >> 24; + + status = usb_control_msg(usbdev, + usb_sndctrlpipe(usbdev, 0), + USB_VENDOR_REGISTER_WRITE, + RSI_USB_REQ_OUT, + ((cpu_to_le32(reg) & 0xffff0000) >> 16), + (cpu_to_le32(reg) & 0xffff), + (void *)usb_reg_buf, + len, + USB_CTRL_SET_TIMEOUT); + if (status < 0) { + rsi_dbg(ERR_ZONE, + "%s: Reg write failed with error code :%d\n", + __func__, status); + } + kfree(usb_reg_buf); + + return status; +} + +/** + * rsi_rx_done_handler() - This function is called when a packet is received + * from USB stack. This is callback to receive done. + * @urb: Received URB. + * + * Return: None. + */ +static void rsi_rx_done_handler(struct urb *urb) +{ + struct rx_usb_ctrl_block *rx_cb = urb->context; + struct rsi_91x_usbdev *dev = (struct rsi_91x_usbdev *)rx_cb->data; + int status = -EINVAL; + + if (urb->status) { + dev_kfree_skb(rx_cb->rx_skb); + return; + } + + if (urb->actual_length <= 0 || + urb->actual_length > rx_cb->rx_skb->len) { + rsi_dbg(INFO_ZONE, "%s: Invalid packet length = %d\n", + __func__, urb->actual_length); + goto out; + } + if (skb_queue_len(&dev->rx_q) >= RSI_MAX_RX_PKTS) { + rsi_dbg(INFO_ZONE, "Max RX packets reached\n"); + goto out; + } + skb_trim(rx_cb->rx_skb, urb->actual_length); + skb_queue_tail(&dev->rx_q, rx_cb->rx_skb); + + rsi_set_event(&dev->rx_thread.event); + status = 0; + +out: + if (rsi_rx_urb_submit(dev->priv, rx_cb->ep_num, GFP_ATOMIC)) + rsi_dbg(ERR_ZONE, "%s: Failed in urb submission", __func__); + + if (status) + dev_kfree_skb(rx_cb->rx_skb); +} + +static void rsi_rx_urb_kill(struct rsi_hw *adapter, u8 ep_num) +{ + struct rsi_91x_usbdev *dev = (struct rsi_91x_usbdev *)adapter->rsi_dev; + struct rx_usb_ctrl_block *rx_cb = &dev->rx_cb[ep_num - 1]; + struct urb *urb = rx_cb->rx_urb; + + usb_kill_urb(urb); +} + +/** + * rsi_rx_urb_submit() - This function submits the given URB to the USB stack. + * @adapter: Pointer to the adapter structure. + * + * Return: 0 on success, a negative error code on failure. + */ +static int rsi_rx_urb_submit(struct rsi_hw *adapter, u8 ep_num, gfp_t mem_flags) +{ + struct rsi_91x_usbdev *dev = (struct rsi_91x_usbdev *)adapter->rsi_dev; + struct rx_usb_ctrl_block *rx_cb = &dev->rx_cb[ep_num - 1]; + struct urb *urb = rx_cb->rx_urb; + int status; + struct sk_buff *skb; + u8 dword_align_bytes = 0; + +#define RSI_MAX_RX_USB_PKT_SIZE 3000 + skb = dev_alloc_skb(RSI_MAX_RX_USB_PKT_SIZE); + if (!skb) + return -ENOMEM; + skb_reserve(skb, MAX_DWORD_ALIGN_BYTES); + skb_put(skb, RSI_MAX_RX_USB_PKT_SIZE - MAX_DWORD_ALIGN_BYTES); + dword_align_bytes = (unsigned long)skb->data & 0x3f; + if (dword_align_bytes > 0) + skb_push(skb, dword_align_bytes); + urb->transfer_buffer = skb->data; + rx_cb->rx_skb = skb; + + usb_fill_bulk_urb(urb, + dev->usbdev, + usb_rcvbulkpipe(dev->usbdev, + dev->bulkin_endpoint_addr[ep_num - 1]), + urb->transfer_buffer, + skb->len, + rsi_rx_done_handler, + rx_cb); + + status = usb_submit_urb(urb, mem_flags); + if (status) { + rsi_dbg(ERR_ZONE, "%s: Failed in urb submission\n", __func__); + dev_kfree_skb(skb); + } + + return status; +} + +static int rsi_usb_read_register_multiple(struct rsi_hw *adapter, u32 addr, + u8 *data, u16 count) +{ + struct rsi_91x_usbdev *dev = (struct rsi_91x_usbdev *)adapter->rsi_dev; + u8 *buf; + u16 transfer; + int status; + + if (!addr) + return -EINVAL; + + buf = kzalloc(RSI_USB_BUF_SIZE, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + while (count) { + transfer = min_t(u16, count, RSI_USB_BUF_SIZE); + status = usb_control_msg(dev->usbdev, + usb_rcvctrlpipe(dev->usbdev, 0), + USB_VENDOR_REGISTER_READ, + RSI_USB_REQ_IN, + ((addr & 0xffff0000) >> 16), + (addr & 0xffff), (void *)buf, + transfer, USB_CTRL_GET_TIMEOUT); + if (status < 0) { + rsi_dbg(ERR_ZONE, + "Reg read failed with error code :%d\n", + status); + kfree(buf); + return status; + } + memcpy(data, buf, transfer); + count -= transfer; + data += transfer; + addr += transfer; + } + kfree(buf); + return 0; +} + +/** + * rsi_usb_write_register_multiple() - This function writes multiple bytes of + * information to multiple registers. + * @adapter: Pointer to the adapter structure. + * @addr: Address of the register. + * @data: Pointer to the data that has to be written. + * @count: Number of multiple bytes to be written on to the registers. + * + * Return: status: 0 on success, a negative error code on failure. + */ +static int rsi_usb_write_register_multiple(struct rsi_hw *adapter, u32 addr, + u8 *data, u16 count) +{ + struct rsi_91x_usbdev *dev = (struct rsi_91x_usbdev *)adapter->rsi_dev; + u8 *buf; + u16 transfer; + int status = 0; + + buf = kzalloc(RSI_USB_BUF_SIZE, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + while (count) { + transfer = min_t(u16, count, RSI_USB_BUF_SIZE); + memcpy(buf, data, transfer); + status = usb_control_msg(dev->usbdev, + usb_sndctrlpipe(dev->usbdev, 0), + USB_VENDOR_REGISTER_WRITE, + RSI_USB_REQ_OUT, + ((addr & 0xffff0000) >> 16), + (addr & 0xffff), + (void *)buf, + transfer, + USB_CTRL_SET_TIMEOUT); + if (status < 0) { + rsi_dbg(ERR_ZONE, + "Reg write failed with error code :%d\n", + status); + kfree(buf); + return status; + } + count -= transfer; + data += transfer; + addr += transfer; + } + + kfree(buf); + return 0; +} + +/** + *rsi_usb_host_intf_write_pkt() - This function writes the packet to the + * USB card. + * @adapter: Pointer to the adapter structure. + * @pkt: Pointer to the data to be written on to the card. + * @len: Length of the data to be written on to the card. + * + * Return: 0 on success, a negative error code on failure. + */ +static int rsi_usb_host_intf_write_pkt(struct rsi_hw *adapter, + u8 *pkt, + u32 len) +{ + u32 queueno = ((pkt[1] >> 4) & 0x7); + u8 endpoint; + + endpoint = ((queueno == RSI_WIFI_MGMT_Q || queueno == RSI_WIFI_DATA_Q || + queueno == RSI_COEX_Q) ? WLAN_EP : BT_EP); + + return rsi_write_multiple(adapter, + endpoint, + (u8 *)pkt, + len); +} + +static int rsi_usb_master_reg_read(struct rsi_hw *adapter, u32 reg, + u32 *value, u16 len) +{ + struct usb_device *usbdev = + ((struct rsi_91x_usbdev *)adapter->rsi_dev)->usbdev; + u16 temp; + int ret; + + ret = rsi_usb_reg_read(usbdev, reg, &temp, len); + if (ret < 0) + return ret; + *value = temp; + + return 0; +} + +static int rsi_usb_master_reg_write(struct rsi_hw *adapter, + unsigned long reg, + unsigned long value, u16 len) +{ + struct usb_device *usbdev = + ((struct rsi_91x_usbdev *)adapter->rsi_dev)->usbdev; + + return rsi_usb_reg_write(usbdev, reg, value, len); +} + +static int rsi_usb_load_data_master_write(struct rsi_hw *adapter, + u32 base_address, + u32 instructions_sz, u16 block_size, + u8 *ta_firmware) +{ + u16 num_blocks; + u32 cur_indx, i; + u8 temp_buf[256]; + int status; + + num_blocks = instructions_sz / block_size; + rsi_dbg(INFO_ZONE, "num_blocks: %d\n", num_blocks); + + for (cur_indx = 0, i = 0; i < num_blocks; i++, cur_indx += block_size) { + memcpy(temp_buf, ta_firmware + cur_indx, block_size); + status = rsi_usb_write_register_multiple(adapter, base_address, + (u8 *)(temp_buf), + block_size); + if (status < 0) + return status; + + rsi_dbg(INFO_ZONE, "%s: loading block: %d\n", __func__, i); + base_address += block_size; + } + + if (instructions_sz % block_size) { + memset(temp_buf, 0, block_size); + memcpy(temp_buf, ta_firmware + cur_indx, + instructions_sz % block_size); + status = rsi_usb_write_register_multiple + (adapter, base_address, + (u8 *)temp_buf, + instructions_sz % block_size); + if (status < 0) + return status; + rsi_dbg(INFO_ZONE, + "Written Last Block in Address 0x%x Successfully\n", + cur_indx); + } + return 0; +} + +static struct rsi_host_intf_ops usb_host_intf_ops = { + .write_pkt = rsi_usb_host_intf_write_pkt, + .read_reg_multiple = rsi_usb_read_register_multiple, + .write_reg_multiple = rsi_usb_write_register_multiple, + .master_reg_read = rsi_usb_master_reg_read, + .master_reg_write = rsi_usb_master_reg_write, + .load_data_master_write = rsi_usb_load_data_master_write, +}; + +/** + * rsi_deinit_usb_interface() - This function deinitializes the usb interface. + * @adapter: Pointer to the adapter structure. + * + * Return: None. + */ +static void rsi_deinit_usb_interface(struct rsi_hw *adapter) +{ + struct rsi_91x_usbdev *dev = (struct rsi_91x_usbdev *)adapter->rsi_dev; + + rsi_kill_thread(&dev->rx_thread); + + usb_free_urb(dev->rx_cb[0].rx_urb); + if (adapter->priv->coex_mode > 1) + usb_free_urb(dev->rx_cb[1].rx_urb); + + kfree(dev->tx_buffer); +} + +static int rsi_usb_init_rx(struct rsi_hw *adapter) +{ + struct rsi_91x_usbdev *dev = (struct rsi_91x_usbdev *)adapter->rsi_dev; + struct rx_usb_ctrl_block *rx_cb; + u8 idx, num_rx_cb; + + num_rx_cb = (adapter->priv->coex_mode > 1 ? 2 : 1); + + for (idx = 0; idx < num_rx_cb; idx++) { + rx_cb = &dev->rx_cb[idx]; + + rx_cb->rx_urb = usb_alloc_urb(0, GFP_KERNEL); + if (!rx_cb->rx_urb) { + rsi_dbg(ERR_ZONE, "Failed alloc rx urb[%d]\n", idx); + goto err; + } + rx_cb->ep_num = idx + 1; + rx_cb->data = (void *)dev; + } + skb_queue_head_init(&dev->rx_q); + rsi_init_event(&dev->rx_thread.event); + if (rsi_create_kthread(adapter->priv, &dev->rx_thread, + rsi_usb_rx_thread, "RX-Thread")) { + rsi_dbg(ERR_ZONE, "%s: Unable to init rx thrd\n", __func__); + goto err; + } + + return 0; + +err: + usb_free_urb(dev->rx_cb[0].rx_urb); + if (adapter->priv->coex_mode > 1) + usb_free_urb(dev->rx_cb[1].rx_urb); + + return -1; +} + +/** + * rsi_init_usb_interface() - This function initializes the usb interface. + * @adapter: Pointer to the adapter structure. + * @pfunction: Pointer to USB interface structure. + * + * Return: 0 on success, a negative error code on failure. + */ +static int rsi_init_usb_interface(struct rsi_hw *adapter, + struct usb_interface *pfunction) +{ + struct rsi_91x_usbdev *rsi_dev; + int status; + + rsi_dev = kzalloc(sizeof(*rsi_dev), GFP_KERNEL); + if (!rsi_dev) + return -ENOMEM; + + adapter->rsi_dev = rsi_dev; + rsi_dev->usbdev = interface_to_usbdev(pfunction); + rsi_dev->priv = (void *)adapter; + + if (rsi_find_bulk_in_and_out_endpoints(pfunction, adapter)) { + status = -EINVAL; + goto fail_eps; + } + + adapter->device = &pfunction->dev; + usb_set_intfdata(pfunction, adapter); + + rsi_dev->tx_buffer = kmalloc(2048, GFP_KERNEL); + if (!rsi_dev->tx_buffer) { + status = -ENOMEM; + goto fail_eps; + } + + if (rsi_usb_init_rx(adapter)) { + rsi_dbg(ERR_ZONE, "Failed to init RX handle\n"); + status = -ENOMEM; + goto fail_rx; + } + + rsi_dev->tx_blk_size = 252; + adapter->block_size = rsi_dev->tx_blk_size; + + /* Initializing function callbacks */ + adapter->check_hw_queue_status = rsi_usb_check_queue_status; + adapter->determine_event_timeout = rsi_usb_event_timeout; + adapter->rsi_host_intf = RSI_HOST_INTF_USB; + adapter->host_intf_ops = &usb_host_intf_ops; + +#ifdef CPTCFG_RSI_DEBUGFS + /* In USB, one less than the MAX_DEBUGFS_ENTRIES entries is required */ + adapter->num_debugfs_entries = (MAX_DEBUGFS_ENTRIES - 1); +#endif + + rsi_dbg(INIT_ZONE, "%s: Enabled the interface\n", __func__); + return 0; + +fail_rx: + kfree(rsi_dev->tx_buffer); + +fail_eps: + + return status; +} + +static int usb_ulp_read_write(struct rsi_hw *adapter, u16 addr, u32 data, + u16 len_in_bits) +{ + int ret; + + ret = rsi_usb_master_reg_write + (adapter, RSI_GSPI_DATA_REG1, + ((addr << 6) | ((data >> 16) & 0xffff)), 2); + if (ret < 0) + return ret; + + ret = rsi_usb_master_reg_write(adapter, RSI_GSPI_DATA_REG0, + (data & 0xffff), 2); + if (ret < 0) + return ret; + + /* Initializing GSPI for ULP read/writes */ + rsi_usb_master_reg_write(adapter, RSI_GSPI_CTRL_REG0, + RSI_GSPI_CTRL_REG0_VALUE, 2); + + ret = rsi_usb_master_reg_write(adapter, RSI_GSPI_CTRL_REG1, + ((len_in_bits - 1) | RSI_GSPI_TRIG), 2); + if (ret < 0) + return ret; + + msleep(20); + + return 0; +} + +static int rsi_reset_card(struct rsi_hw *adapter) +{ + int ret; + + rsi_dbg(INFO_ZONE, "Resetting Card...\n"); + rsi_usb_master_reg_write(adapter, RSI_TA_HOLD_REG, 0xE, 4); + + /* This msleep will ensure Thread-Arch processor to go to hold + * and any pending dma transfers to rf in device to finish. + */ + msleep(100); + + ret = rsi_usb_master_reg_write(adapter, SWBL_REGOUT, + RSI_FW_WDT_DISABLE_REQ, + RSI_COMMON_REG_SIZE); + if (ret < 0) { + rsi_dbg(ERR_ZONE, "Disabling firmware watchdog timer failed\n"); + goto fail; + } + + if (adapter->device_model != RSI_DEV_9116) { + ret = usb_ulp_read_write(adapter, RSI_WATCH_DOG_TIMER_1, + RSI_ULP_WRITE_2, 32); + if (ret < 0) + goto fail; + ret = usb_ulp_read_write(adapter, RSI_WATCH_DOG_TIMER_2, + RSI_ULP_WRITE_0, 32); + if (ret < 0) + goto fail; + ret = usb_ulp_read_write(adapter, RSI_WATCH_DOG_DELAY_TIMER_1, + RSI_ULP_WRITE_50, 32); + if (ret < 0) + goto fail; + ret = usb_ulp_read_write(adapter, RSI_WATCH_DOG_DELAY_TIMER_2, + RSI_ULP_WRITE_0, 32); + if (ret < 0) + goto fail; + ret = usb_ulp_read_write(adapter, RSI_WATCH_DOG_TIMER_ENABLE, + RSI_ULP_TIMER_ENABLE, 32); + if (ret < 0) + goto fail; + } else { + if ((rsi_usb_master_reg_write(adapter, + NWP_WWD_INTERRUPT_TIMER, + NWP_WWD_INT_TIMER_CLKS, + RSI_9116_REG_SIZE)) < 0) { + goto fail; + } + if ((rsi_usb_master_reg_write(adapter, + NWP_WWD_SYSTEM_RESET_TIMER, + NWP_WWD_SYS_RESET_TIMER_CLKS, + RSI_9116_REG_SIZE)) < 0) { + goto fail; + } + if ((rsi_usb_master_reg_write(adapter, + NWP_WWD_MODE_AND_RSTART, + NWP_WWD_TIMER_DISABLE, + RSI_9116_REG_SIZE)) < 0) { + goto fail; + } + } + + rsi_dbg(INFO_ZONE, "Reset card done\n"); + return ret; + +fail: + rsi_dbg(ERR_ZONE, "Reset card failed\n"); + return ret; +} + +/** + * rsi_probe() - This function is called by kernel when the driver provided + * Vendor and device IDs are matched. All the initialization + * work is done here. + * @pfunction: Pointer to the USB interface structure. + * @id: Pointer to the usb_device_id structure. + * + * Return: 0 on success, a negative error code on failure. + */ +static int rsi_probe(struct usb_interface *pfunction, + const struct usb_device_id *id) +{ + struct rsi_hw *adapter; + struct rsi_91x_usbdev *dev; + u16 fw_status; + int status; + + rsi_dbg(INIT_ZONE, "%s: Init function called\n", __func__); + + adapter = rsi_91x_init(dev_oper_mode); + if (!adapter) { + rsi_dbg(ERR_ZONE, "%s: Failed to init os intf ops\n", + __func__); + return -ENOMEM; + } + adapter->rsi_host_intf = RSI_HOST_INTF_USB; + + status = rsi_init_usb_interface(adapter, pfunction); + if (status) { + rsi_dbg(ERR_ZONE, "%s: Failed to init usb interface\n", + __func__); + goto err; + } + + rsi_dbg(ERR_ZONE, "%s: Initialized os intf ops\n", __func__); + + if (id && id->idProduct == RSI_USB_PID_9113) { + rsi_dbg(INIT_ZONE, "%s: 9113 module detected\n", __func__); + adapter->device_model = RSI_DEV_9113; + } else if (id && id->idProduct == RSI_USB_PID_9116) { + rsi_dbg(INIT_ZONE, "%s: 9116 module detected\n", __func__); + adapter->device_model = RSI_DEV_9116; + } else { + rsi_dbg(ERR_ZONE, "%s: Unsupported RSI device id 0x%x\n", + __func__, id->idProduct); + goto err1; + } + + dev = (struct rsi_91x_usbdev *)adapter->rsi_dev; + + status = rsi_usb_reg_read(dev->usbdev, FW_STATUS_REG, &fw_status, 2); + if (status < 0) + goto err1; + else + fw_status &= 1; + + if (!fw_status) { + rsi_dbg(INIT_ZONE, "Loading firmware...\n"); + status = rsi_hal_device_init(adapter); + if (status) { + rsi_dbg(ERR_ZONE, "%s: Failed in device init\n", + __func__); + goto err1; + } + rsi_dbg(INIT_ZONE, "%s: Device Init Done\n", __func__); + } + + status = rsi_rx_urb_submit(adapter, WLAN_EP, GFP_KERNEL); + if (status) + goto err1; + + if (adapter->priv->coex_mode > 1) { + status = rsi_rx_urb_submit(adapter, BT_EP, GFP_KERNEL); + if (status) + goto err_kill_wlan_urb; + } + + return 0; + +err_kill_wlan_urb: + rsi_rx_urb_kill(adapter, WLAN_EP); +err1: + rsi_deinit_usb_interface(adapter); +err: + rsi_91x_deinit(adapter); + rsi_dbg(ERR_ZONE, "%s: Failed in probe...Exiting\n", __func__); + return status; +} + +/** + * rsi_disconnect() - This function performs the reverse of the probe function, + * it deinitialize the driver structure. + * @pfunction: Pointer to the USB interface structure. + * + * Return: None. + */ +static void rsi_disconnect(struct usb_interface *pfunction) +{ + struct rsi_hw *adapter = usb_get_intfdata(pfunction); + + if (!adapter) + return; + + rsi_mac80211_detach(adapter); + + if (IS_ENABLED(CPTCFG_RSI_COEX) && adapter->priv->coex_mode > 1 && + adapter->priv->bt_adapter) { + rsi_bt_ops.detach(adapter->priv->bt_adapter); + adapter->priv->bt_adapter = NULL; + } + + if (adapter->priv->coex_mode > 1) + rsi_rx_urb_kill(adapter, BT_EP); + rsi_rx_urb_kill(adapter, WLAN_EP); + + rsi_reset_card(adapter); + rsi_deinit_usb_interface(adapter); + rsi_91x_deinit(adapter); + + rsi_dbg(INFO_ZONE, "%s: Deinitialization completed\n", __func__); +} + +#ifdef CONFIG_PM +static int rsi_suspend(struct usb_interface *intf, pm_message_t message) +{ + /* Not yet implemented */ + return -ENOSYS; +} + +static int rsi_resume(struct usb_interface *intf) +{ + /* Not yet implemented */ + return -ENOSYS; +} +#endif + +static const struct usb_device_id rsi_dev_table[] = { + { USB_DEVICE(RSI_USB_VENDOR_ID, RSI_USB_PID_9113) }, + { USB_DEVICE(RSI_USB_VENDOR_ID, RSI_USB_PID_9116) }, + { /* Blank */}, +}; + +static struct usb_driver rsi_driver = { + .name = "RSI-USB WLAN", + .probe = rsi_probe, + .disconnect = rsi_disconnect, + .id_table = rsi_dev_table, +#ifdef CONFIG_PM + .suspend = rsi_suspend, + .resume = rsi_resume, +#endif +}; + +module_usb_driver(rsi_driver); + +MODULE_AUTHOR("Redpine Signals Inc"); +MODULE_DESCRIPTION("Common USB layer for RSI drivers"); +MODULE_SUPPORTED_DEVICE("RSI-91x"); +MODULE_DEVICE_TABLE(usb, rsi_dev_table); +MODULE_FIRMWARE(FIRMWARE_RSI9113); +MODULE_VERSION("0.1"); +MODULE_LICENSE("Dual BSD/GPL"); diff --git a/drivers/net/wireless/rsi/rsi_91x_usb_ops.c b/drivers/net/wireless/rsi/rsi_91x_usb_ops.c new file mode 100644 index 0000000..b1687d2 --- /dev/null +++ b/drivers/net/wireless/rsi/rsi_91x_usb_ops.c @@ -0,0 +1,61 @@ +/** + * Copyright (c) 2014 Redpine Signals Inc. + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + */ + +#include <linux/firmware.h> +#include "rsi_usb.h" + +/** + * rsi_usb_rx_thread() - This is a kernel thread to receive the packets from + * the USB device. + * @common: Pointer to the driver private structure. + * + * Return: None. + */ +void rsi_usb_rx_thread(struct rsi_common *common) +{ + struct rsi_hw *adapter = common->priv; + struct rsi_91x_usbdev *dev = (struct rsi_91x_usbdev *)adapter->rsi_dev; + int status; + struct sk_buff *skb; + + do { + rsi_wait_event(&dev->rx_thread.event, EVENT_WAIT_FOREVER); + rsi_reset_event(&dev->rx_thread.event); + + while (true) { + if (atomic_read(&dev->rx_thread.thread_done)) + goto out; + + skb = skb_dequeue(&dev->rx_q); + if (!skb) + break; + status = rsi_read_pkt(common, skb->data, 0); + if (status) { + rsi_dbg(ERR_ZONE, "%s: Failed To read data", + __func__); + break; + } + dev_kfree_skb(skb); + } + } while (1); + +out: + rsi_dbg(INFO_ZONE, "%s: Terminated thread\n", __func__); + skb_queue_purge(&dev->rx_q); + complete_and_exit(&dev->rx_thread.completion, 0); +} + diff --git a/drivers/net/wireless/rsi/rsi_boot_params.h b/drivers/net/wireless/rsi/rsi_boot_params.h new file mode 100644 index 0000000..c1cf19d --- /dev/null +++ b/drivers/net/wireless/rsi/rsi_boot_params.h @@ -0,0 +1,193 @@ +/** + * Copyright (c) 2014 Redpine Signals Inc. + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#ifndef __RSI_BOOTPARAMS_HEADER_H__ +#define __RSI_BOOTPARAMS_HEADER_H__ + +#define CRYSTAL_GOOD_TIME BIT(0) +#define BOOTUP_MODE_INFO BIT(1) +#define WIFI_TAPLL_CONFIGS BIT(5) +#define WIFI_PLL960_CONFIGS BIT(6) +#define WIFI_AFEPLL_CONFIGS BIT(7) +#define WIFI_SWITCH_CLK_CONFIGS BIT(8) + +#define TA_PLL_M_VAL_20 9 +#define TA_PLL_N_VAL_20 0 +#define TA_PLL_P_VAL_20 4 + +#define PLL960_M_VAL_20 0x14 +#define PLL960_N_VAL_20 0 +#define PLL960_P_VAL_20 5 + +#define UMAC_CLK_40MHZ 80 + +#define TA_PLL_M_VAL_40 9 +#define TA_PLL_N_VAL_40 0 +#define TA_PLL_P_VAL_40 4 + +#define PLL960_M_VAL_40 0x14 +#define PLL960_N_VAL_40 0 +#define PLL960_P_VAL_40 5 + +#define UMAC_CLK_20BW \ + (((TA_PLL_M_VAL_20 + 1) * 40) / \ + ((TA_PLL_N_VAL_20 + 1) * (TA_PLL_P_VAL_20 + 1))) +#define VALID_20 \ + (WIFI_TAPLL_CONFIGS | WIFI_PLL960_CONFIGS | WIFI_AFEPLL_CONFIGS | \ + WIFI_SWITCH_CLK_CONFIGS | BOOTUP_MODE_INFO | CRYSTAL_GOOD_TIME) +#define UMAC_CLK_40BW \ + (((TA_PLL_M_VAL_40 + 1) * 40) / \ + ((TA_PLL_N_VAL_40 + 1) * (TA_PLL_P_VAL_40 + 1))) +#define VALID_40 \ + (WIFI_PLL960_CONFIGS | WIFI_AFEPLL_CONFIGS | WIFI_SWITCH_CLK_CONFIGS | \ + WIFI_TAPLL_CONFIGS | CRYSTAL_GOOD_TIME | BOOTUP_MODE_INFO) + +/* structure to store configs related to TAPLL programming */ +struct tapll_info { + __le16 pll_reg_1; + __le16 pll_reg_2; +} __packed; + +/* structure to store configs related to PLL960 programming */ +struct pll960_info { + __le16 pll_reg_1; + __le16 pll_reg_2; + __le16 pll_reg_3; +} __packed; + +/* structure to store configs related to AFEPLL programming */ +struct afepll_info { + __le16 pll_reg; +} __packed; + +/* structure to store configs related to pll configs */ +struct pll_config { + struct tapll_info tapll_info_g; + struct pll960_info pll960_info_g; + struct afepll_info afepll_info_g; +} __packed; + +struct pll_config_9116 { + __le16 pll_ctrl_set_reg; + __le16 pll_ctrl_clr_reg; + __le16 pll_modem_conig_reg; + __le16 soc_clk_config_reg; + __le16 adc_dac_strm1_config_reg; + __le16 adc_dac_strm2_config_reg; +} __packed; + +/* structure to store configs related to UMAC clk programming */ +struct switch_clk { + __le16 switch_clk_info; + /* If switch_bbp_lmac_clk_reg is set then this value will be programmed + * into reg + */ + __le16 bbp_lmac_clk_reg_val; + /* if switch_umac_clk is set then this value will be programmed */ + __le16 umac_clock_reg_config; + /* if switch_qspi_clk is set then this value will be programmed */ + __le16 qspi_uart_clock_reg_config; +} __packed; + +#define RSI_SWITCH_TASS_CLK BIT(0) +#define RSI_SWITCH_QSPI_CLK BIT(1) +#define RSI_SWITCH_SLP_CLK_2_32 BIT(2) +#define RSI_SWITCH_WLAN_BBP_LMAC_CLK_REG BIT(3) +#define RSI_SWITCH_ZBBT_BBP_LMAC_CLK_REG BIT(4) +#define RSI_SWITCH_BBP_LMAC_CLK_REG BIT(5) +#define RSI_MODEM_CLK_160MHZ BIT(6) + +struct switch_clk_9116 { + __le32 switch_clk_info; + __le32 tass_clock_reg; + __le32 wlan_bbp_lmac_clk_reg_val; + __le32 zbbt_bbp_lmac_clk_reg_val; + __le32 bbp_lmac_clk_en_val; +} __packed; + +struct device_clk_info { + struct pll_config pll_config_g; + struct switch_clk switch_clk_g; +} __packed; + +struct device_clk_info_9116 { + struct pll_config_9116 pll_config_9116_g; + struct switch_clk_9116 switch_clk_9116_g; +} __packed; + +struct bootup_params { + __le16 magic_number; + __le16 crystal_good_time; + __le32 valid; + __le32 reserved_for_valids; + __le16 bootup_mode_info; + /* configuration used for digital loop back */ + __le16 digital_loop_back_params; + __le16 rtls_timestamp_en; + __le16 host_spi_intr_cfg; + struct device_clk_info device_clk_info[3]; + /* ulp buckboost wait time */ + __le32 buckboost_wakeup_cnt; + /* pmu wakeup wait time & WDT EN info */ + __le16 pmu_wakeup_wait; + u8 shutdown_wait_time; + /* Sleep clock source selection */ + u8 pmu_slp_clkout_sel; + /* WDT programming values */ + __le32 wdt_prog_value; + /* WDT soc reset delay */ + __le32 wdt_soc_rst_delay; + /* dcdc modes configs */ + __le32 dcdc_operation_mode; + __le32 soc_reset_wait_cnt; + __le32 waiting_time_at_fresh_sleep; + __le32 max_threshold_to_avoid_sleep; + u8 beacon_resedue_alg_en; +} __packed; + +struct bootup_params_9116 { + __le16 magic_number; +#define LOADED_TOKEN 0x5AA5 /* Bootup params are installed by host + * or OTP/FLASH (Bootloader) + */ +#define ROM_TOKEN 0x55AA /* Bootup params are taken from ROM + * itself in MCU mode. + */ + __le16 crystal_good_time; + __le32 valid; + __le32 reserved_for_valids; + __le16 bootup_mode_info; +#define BT_COEXIST BIT(0) +#define BOOTUP_MODE (BIT(2) | BIT(1)) +#define CUR_DEV_MODE_9116 (bootup_params_9116.bootup_mode_info >> 1) + __le16 digital_loop_back_params; + __le16 rtls_timestamp_en; + __le16 host_spi_intr_cfg; + struct device_clk_info_9116 device_clk_info_9116[1]; + __le32 buckboost_wakeup_cnt; + __le16 pmu_wakeup_wait; + u8 shutdown_wait_time; + u8 pmu_slp_clkout_sel; + __le32 wdt_prog_value; + __le32 wdt_soc_rst_delay; + __le32 dcdc_operation_mode; + __le32 soc_reset_wait_cnt; + __le32 waiting_time_at_fresh_sleep; + __le32 max_threshold_to_avoid_sleep; + u8 beacon_resedue_alg_en; +} __packed; + +#endif diff --git a/drivers/net/wireless/rsi/rsi_coex.h b/drivers/net/wireless/rsi/rsi_coex.h new file mode 100644 index 0000000..b91ecff --- /dev/null +++ b/drivers/net/wireless/rsi/rsi_coex.h @@ -0,0 +1,37 @@ +/** + * Copyright (c) 2018 Redpine Signals Inc. + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#ifndef __RSI_COEX_H__ +#define __RSI_COEX_H__ + +#include "rsi_common.h" + +#ifdef CPTCFG_RSI_COEX +#define COMMON_CARD_READY_IND 0 +#define NUM_COEX_TX_QUEUES 5 + +struct rsi_coex_ctrl_block { + struct rsi_common *priv; + struct sk_buff_head coex_tx_qs[NUM_COEX_TX_QUEUES]; + struct rsi_thread coex_tx_thread; +}; + +int rsi_coex_attach(struct rsi_common *common); +void rsi_coex_detach(struct rsi_common *common); +int rsi_coex_send_pkt(void *priv, struct sk_buff *skb, u8 proto_type); +int rsi_coex_recv_pkt(struct rsi_common *common, u8 *msg); +#endif +#endif diff --git a/drivers/net/wireless/rsi/rsi_common.h b/drivers/net/wireless/rsi/rsi_common.h new file mode 100644 index 0000000..60f1f28 --- /dev/null +++ b/drivers/net/wireless/rsi/rsi_common.h @@ -0,0 +1,92 @@ +/** + * Copyright (c) 2014 Redpine Signals Inc. + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#ifndef __RSI_COMMON_H__ +#define __RSI_COMMON_H__ + +#include <linux/kthread.h> + +#define EVENT_WAIT_FOREVER 0 +#define FIRMWARE_RSI9113 "rs9113_wlan_qspi.rps" +#define QUEUE_NOT_FULL 1 +#define QUEUE_FULL 0 + +static inline int rsi_init_event(struct rsi_event *pevent) +{ + atomic_set(&pevent->event_condition, 1); + init_waitqueue_head(&pevent->event_queue); + return 0; +} + +static inline int rsi_wait_event(struct rsi_event *event, u32 timeout) +{ + int status = 0; + + if (!timeout) + status = wait_event_interruptible(event->event_queue, + (atomic_read(&event->event_condition) == 0)); + else + status = wait_event_interruptible_timeout(event->event_queue, + (atomic_read(&event->event_condition) == 0), + timeout); + return status; +} + +static inline void rsi_set_event(struct rsi_event *event) +{ + atomic_set(&event->event_condition, 0); + wake_up_interruptible(&event->event_queue); +} + +static inline void rsi_reset_event(struct rsi_event *event) +{ + atomic_set(&event->event_condition, 1); +} + +static inline int rsi_create_kthread(struct rsi_common *common, + struct rsi_thread *thread, + void *func_ptr, + u8 *name) +{ + init_completion(&thread->completion); + atomic_set(&thread->thread_done, 0); + thread->task = kthread_run(func_ptr, common, "%s", name); + if (IS_ERR(thread->task)) + return (int)PTR_ERR(thread->task); + + return 0; +} + +static inline int rsi_kill_thread(struct rsi_thread *handle) +{ + atomic_inc(&handle->thread_done); + rsi_set_event(&handle->event); + + return kthread_stop(handle->task); +} + +void rsi_mac80211_detach(struct rsi_hw *hw); +u16 rsi_get_connected_channel(struct ieee80211_vif *vif); +struct rsi_hw *rsi_91x_init(u16 oper_mode); +void rsi_91x_deinit(struct rsi_hw *adapter); +int rsi_read_pkt(struct rsi_common *common, u8 *rx_pkt, s32 rcv_pkt_len); +#ifdef CONFIG_PM +int rsi_config_wowlan(struct rsi_hw *adapter, struct cfg80211_wowlan *wowlan); +#endif +struct rsi_sta *rsi_find_sta(struct rsi_common *common, u8 *mac_addr); +struct ieee80211_vif *rsi_get_vif(struct rsi_hw *adapter, u8 *mac); +void rsi_roc_timeout(struct timer_list *t); +#endif diff --git a/drivers/net/wireless/rsi/rsi_debugfs.h b/drivers/net/wireless/rsi/rsi_debugfs.h new file mode 100644 index 0000000..e2d7d58 --- /dev/null +++ b/drivers/net/wireless/rsi/rsi_debugfs.h @@ -0,0 +1,48 @@ +/** + * Copyright (c) 2014 Redpine Signals Inc. + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#ifndef __RSI_DEBUGFS_H__ +#define __RSI_DEBUGFS_H__ + +#include "rsi_main.h" +#include <linux/debugfs.h> + +#ifndef CPTCFG_RSI_DEBUGFS +static inline int rsi_init_dbgfs(struct rsi_hw *adapter) +{ + return 0; +} + +static inline void rsi_remove_dbgfs(struct rsi_hw *adapter) +{ + return; +} +#else +struct rsi_dbg_files { + const char *name; + umode_t perms; + const struct file_operations fops; +}; + +struct rsi_debugfs { + struct dentry *subdir; + struct rsi_dbg_ops *dfs_get_ops; + struct dentry *rsi_files[MAX_DEBUGFS_ENTRIES]; +}; +int rsi_init_dbgfs(struct rsi_hw *adapter); +void rsi_remove_dbgfs(struct rsi_hw *adapter); +#endif +#endif diff --git a/drivers/net/wireless/rsi/rsi_hal.h b/drivers/net/wireless/rsi/rsi_hal.h new file mode 100644 index 0000000..46e36df --- /dev/null +++ b/drivers/net/wireless/rsi/rsi_hal.h @@ -0,0 +1,219 @@ +/** + * Copyright (c) 2017 Redpine Signals Inc. + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#ifndef __RSI_HAL_H__ +#define __RSI_HAL_H__ + +/* Device Operating modes */ +#define DEV_OPMODE_WIFI_ALONE 1 +#define DEV_OPMODE_BT_ALONE 4 +#define DEV_OPMODE_BT_LE_ALONE 8 +#define DEV_OPMODE_BT_DUAL 12 +#define DEV_OPMODE_STA_BT 5 +#define DEV_OPMODE_STA_BT_LE 9 +#define DEV_OPMODE_STA_BT_DUAL 13 +#define DEV_OPMODE_AP_BT 6 +#define DEV_OPMODE_AP_BT_DUAL 14 + +#define FLASH_WRITE_CHUNK_SIZE (4 * 1024) +#define FLASH_SECTOR_SIZE (4 * 1024) + +#define FLASH_SIZE_ADDR 0x04000016 +#define PING_BUFFER_ADDRESS 0x19000 +#define PONG_BUFFER_ADDRESS 0x1a000 +#define SWBL_REGIN 0x41050034 +#define SWBL_REGOUT 0x4105003c +#define PING_WRITE 0x1 +#define PONG_WRITE 0x2 + +#define BL_CMD_TIMEOUT 2000 +#define BL_BURN_TIMEOUT (50 * 1000) + +#define REGIN_VALID 0xA +#define REGIN_INPUT 0xA0 +#define REGOUT_VALID 0xAB +#define REGOUT_INVALID (~0xAB) +#define CMD_PASS 0xAA +#define CMD_FAIL 0xCC + +#define LOAD_HOSTED_FW 'A' +#define BURN_HOSTED_FW 'B' +#define PING_VALID 'I' +#define PONG_VALID 'O' +#define PING_AVAIL 'I' +#define PONG_AVAIL 'O' +#define EOF_REACHED 'E' +#define CHECK_CRC 'K' +#define POLLING_MODE 'P' +#define CONFIG_AUTO_READ_MODE 'R' +#define JUMP_TO_ZERO_PC 'J' +#define FW_LOADING_SUCCESSFUL 'S' +#define LOADING_INITIATED '1' + +#define RSI_ULP_RESET_REG 0x161 +#define RSI_WATCH_DOG_TIMER_1 0x16c +#define RSI_WATCH_DOG_TIMER_2 0x16d +#define RSI_WATCH_DOG_DELAY_TIMER_1 0x16e +#define RSI_WATCH_DOG_DELAY_TIMER_2 0x16f +#define RSI_WATCH_DOG_TIMER_ENABLE 0x170 + +/* Watchdog timer addresses for 9116 */ +#define NWP_AHB_BASE_ADDR 0x41300000 +#define NWP_WWD_INTERRUPT_TIMER (NWP_AHB_BASE_ADDR + 0x300) +#define NWP_WWD_SYSTEM_RESET_TIMER (NWP_AHB_BASE_ADDR + 0x304) +#define NWP_WWD_WINDOW_TIMER (NWP_AHB_BASE_ADDR + 0x308) +#define NWP_WWD_TIMER_SETTINGS (NWP_AHB_BASE_ADDR + 0x30C) +#define NWP_WWD_MODE_AND_RSTART (NWP_AHB_BASE_ADDR + 0x310) +#define NWP_WWD_RESET_BYPASS (NWP_AHB_BASE_ADDR + 0x314) +#define NWP_FSM_INTR_MASK_REG (NWP_AHB_BASE_ADDR + 0x104) + +/* Watchdog timer values */ +#define NWP_WWD_INT_TIMER_CLKS 5 +#define NWP_WWD_SYS_RESET_TIMER_CLKS 4 +#define NWP_WWD_TIMER_DISABLE 0xAA0001 + +#define RSI_ULP_WRITE_0 00 +#define RSI_ULP_WRITE_2 02 +#define RSI_ULP_WRITE_50 50 + +#define RSI_RESTART_WDT BIT(11) +#define RSI_BYPASS_ULP_ON_WDT BIT(1) + +#define RSI_ULP_TIMER_ENABLE ((0xaa000) | RSI_RESTART_WDT | \ + RSI_BYPASS_ULP_ON_WDT) +#define RSI_RF_SPI_PROG_REG_BASE_ADDR 0x40080000 + +#define RSI_GSPI_CTRL_REG0 (RSI_RF_SPI_PROG_REG_BASE_ADDR) +#define RSI_GSPI_CTRL_REG1 (RSI_RF_SPI_PROG_REG_BASE_ADDR + 0x2) +#define RSI_GSPI_DATA_REG0 (RSI_RF_SPI_PROG_REG_BASE_ADDR + 0x4) +#define RSI_GSPI_DATA_REG1 (RSI_RF_SPI_PROG_REG_BASE_ADDR + 0x6) +#define RSI_GSPI_DATA_REG2 (RSI_RF_SPI_PROG_REG_BASE_ADDR + 0x8) + +#define RSI_GSPI_CTRL_REG0_VALUE 0x340 + +#define RSI_GSPI_DMA_MODE BIT(13) + +#define RSI_GSPI_2_ULP BIT(12) +#define RSI_GSPI_TRIG BIT(7) +#define RSI_GSPI_READ BIT(6) +#define RSI_GSPI_RF_SPI_ACTIVE BIT(8) + +/* Boot loader commands */ +#define SEND_RPS_FILE '2' + +#define FW_IMAGE_MIN_ADDRESS (68 * 1024) +#define MAX_FLASH_FILE_SIZE (400 * 1024) //400K +#define FLASH_START_ADDRESS 16 + +#define COMMON_HAL_CARD_READY_IND 0x0 + +#define COMMAN_HAL_WAIT_FOR_CARD_READY 1 + +#define RSI_DEV_OPMODE_WIFI_ALONE 1 +#define RSI_DEV_COEX_MODE_WIFI_ALONE 1 + +#define BBP_INFO_40MHZ 0x6 + +#define FW_FLASH_OFFSET 0x820 +#define LMAC_VER_OFFSET_9113 (FW_FLASH_OFFSET + 0x200) +#define LMAC_VER_OFFSET_9116 0x22C2 +#define MAX_DWORD_ALIGN_BYTES 64 +#define RSI_COMMON_REG_SIZE 2 +#define RSI_9116_REG_SIZE 4 +#define FW_ALIGN_SIZE 4 +#define RSI_9116_FW_MAGIC_WORD 0x5aa5 + +#define MEM_ACCESS_CTRL_FROM_HOST 0x41300000 +#define RAM_384K_ACCESS_FROM_TA (BIT(2) | BIT(3) | BIT(4) | BIT(5) | \ + BIT(20) | BIT(21) | BIT(22) | \ + BIT(23) | BIT(24) | BIT(25)) + +struct bl_header { + __le32 flags; + __le32 image_no; + __le32 check_sum; + __le32 flash_start_address; + __le32 flash_len; +} __packed; + +struct ta_metadata { + char *name; + unsigned int address; +}; + +#define RSI_BL_CTRL_LEN_MASK 0xFFFFFF +#define RSI_BL_CTRL_SPI_32BIT_MODE BIT(27) +#define RSI_BL_CTRL_REL_TA_SOFTRESET BIT(28) +#define RSI_BL_CTRL_START_FROM_ROM_PC BIT(29) +#define RSI_BL_CTRL_SPI_8BIT_MODE BIT(30) +#define RSI_BL_CTRL_LAST_ENTRY BIT(31) +struct bootload_entry { + __le32 control; + __le32 dst_addr; +} __packed; + +struct bootload_ds { + __le16 fixed_pattern; + __le16 offset; + __le32 reserved; + struct bootload_entry bl_entry[7]; +} __packed; + +struct rsi_mgmt_desc { + __le16 len_qno; + u8 frame_type; + u8 misc_flags; + u8 xtend_desc_size; + u8 header_len; + __le16 frame_info; + __le16 rate_info; + __le16 bbp_info; + __le16 seq_ctrl; + u8 reserved2; + u8 sta_id; +} __packed; + +struct rsi_data_desc { + __le16 len_qno; + u8 cfm_frame_type; + u8 misc_flags; + u8 xtend_desc_size; + u8 header_len; + __le16 frame_info; + __le16 rate_info; + __le16 bbp_info; + __le16 mac_flags; + u8 qid_tid; + u8 sta_id; +} __packed; + +struct rsi_bt_desc { + __le16 len_qno; + __le16 reserved1; + __le32 reserved2; + __le32 reserved3; + __le16 reserved4; + __le16 bt_pkt_type; +} __packed; + +int rsi_hal_device_init(struct rsi_hw *adapter); +int rsi_prepare_mgmt_desc(struct rsi_common *common, struct sk_buff *skb); +int rsi_prepare_data_desc(struct rsi_common *common, struct sk_buff *skb); +int rsi_prepare_beacon(struct rsi_common *common, struct sk_buff *skb); +int rsi_send_pkt_to_bus(struct rsi_common *common, struct sk_buff *skb); +int rsi_send_bt_pkt(struct rsi_common *common, struct sk_buff *skb); + +#endif diff --git a/drivers/net/wireless/rsi/rsi_main.h b/drivers/net/wireless/rsi/rsi_main.h new file mode 100644 index 0000000..32c76b8 --- /dev/null +++ b/drivers/net/wireless/rsi/rsi_main.h @@ -0,0 +1,406 @@ +/** + * Copyright (c) 2014 Redpine Signals Inc. + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#ifndef __RSI_MAIN_H__ +#define __RSI_MAIN_H__ + +#include <linux/string.h> +#include <linux/skbuff.h> +#include <net/mac80211.h> +#include <net/rsi_91x.h> + +struct rsi_sta { + struct ieee80211_sta *sta; + s16 sta_id; + u16 seq_start[IEEE80211_NUM_TIDS]; + bool start_tx_aggr[IEEE80211_NUM_TIDS]; +}; + +struct rsi_hw; + +#include "rsi_ps.h" + +#define ERR_ZONE BIT(0) /* For Error Msgs */ +#define INFO_ZONE BIT(1) /* For General Status Msgs */ +#define INIT_ZONE BIT(2) /* For Driver Init Seq Msgs */ +#define MGMT_TX_ZONE BIT(3) /* For TX Mgmt Path Msgs */ +#define MGMT_RX_ZONE BIT(4) /* For RX Mgmt Path Msgs */ +#define DATA_TX_ZONE BIT(5) /* For TX Data Path Msgs */ +#define DATA_RX_ZONE BIT(6) /* For RX Data Path Msgs */ +#define FSM_ZONE BIT(7) /* For State Machine Msgs */ +#define ISR_ZONE BIT(8) /* For Interrupt Msgs */ + +enum RSI_FSM_STATES { + FSM_FW_NOT_LOADED, + FSM_CARD_NOT_READY, + FSM_COMMON_DEV_PARAMS_SENT, + FSM_BOOT_PARAMS_SENT, + FSM_EEPROM_READ_MAC_ADDR, + FSM_EEPROM_READ_RF_TYPE, + FSM_RESET_MAC_SENT, + FSM_RADIO_CAPS_SENT, + FSM_BB_RF_PROG_SENT, + FSM_MAC_INIT_DONE, + + NUM_FSM_STATES +}; + +extern u32 rsi_zone_enabled; +extern __printf(2, 3) void rsi_dbg(u32 zone, const char *fmt, ...); + +#define RSI_MAX_VIFS 3 +#define NUM_EDCA_QUEUES 4 +#define IEEE80211_ADDR_LEN 6 +#define FRAME_DESC_SZ 16 +#define MIN_802_11_HDR_LEN 24 +#define RSI_DEF_KEEPALIVE 90 +#define RSI_WOW_KEEPALIVE 5 +#define RSI_BCN_MISS_THRESHOLD 24 + +#define DATA_QUEUE_WATER_MARK 400 +#define MIN_DATA_QUEUE_WATER_MARK 300 +#define MULTICAST_WATER_MARK 200 +#define MAC_80211_HDR_FRAME_CONTROL 0 +#define WME_NUM_AC 4 +#define NUM_SOFT_QUEUES 6 +#define MAX_HW_QUEUES 12 +#define INVALID_QUEUE 0xff +#define MAX_CONTINUOUS_VO_PKTS 8 +#define MAX_CONTINUOUS_VI_PKTS 4 + +/* Hardware queue info */ +#define BROADCAST_HW_Q 9 +#define MGMT_HW_Q 10 +#define BEACON_HW_Q 11 + +#define IEEE80211_MGMT_FRAME 0x00 +#define IEEE80211_CTL_FRAME 0x04 + +#define RSI_MAX_ASSOC_STAS 32 +#define IEEE80211_QOS_TID 0x0f +#define IEEE80211_NONQOS_TID 16 + +#define MAX_DEBUGFS_ENTRIES 4 + +#define TID_TO_WME_AC(_tid) ( \ + ((_tid) == 0 || (_tid) == 3) ? BE_Q : \ + ((_tid) < 3) ? BK_Q : \ + ((_tid) < 6) ? VI_Q : \ + VO_Q) + +#define WME_AC(_q) ( \ + ((_q) == BK_Q) ? IEEE80211_AC_BK : \ + ((_q) == BE_Q) ? IEEE80211_AC_BE : \ + ((_q) == VI_Q) ? IEEE80211_AC_VI : \ + IEEE80211_AC_VO) + +/* WoWLAN flags */ +#define RSI_WOW_ENABLED BIT(0) +#define RSI_WOW_NO_CONNECTION BIT(1) + +#define RSI_MAX_RX_PKTS 64 + +enum rsi_dev_model { + RSI_DEV_9113 = 0, + RSI_DEV_9116 +}; + +struct version_info { + u16 major; + u16 minor; + u8 release_num; + u8 patch_num; + union { + struct { + u8 fw_ver[8]; + } info; + } ver; +} __packed; + +struct skb_info { + s8 rssi; + u32 flags; + u16 channel; + s8 tid; + s8 sta_id; + u8 internal_hdr_size; + struct ieee80211_vif *vif; + u8 vap_id; +}; + +enum edca_queue { + BK_Q, + BE_Q, + VI_Q, + VO_Q, + MGMT_SOFT_Q, + MGMT_BEACON_Q +}; + +struct security_info { + bool security_enable; + u32 ptk_cipher; + u32 gtk_cipher; +}; + +struct wmm_qinfo { + s32 weight; + s32 wme_params; + s32 pkt_contended; + s32 txop; +}; + +struct transmit_q_stats { + u32 total_tx_pkt_send[NUM_EDCA_QUEUES + 2]; + u32 total_tx_pkt_freed[NUM_EDCA_QUEUES + 2]; +}; + +#define MAX_BGSCAN_CHANNELS_DUAL_BAND 38 +#define MAX_BGSCAN_PROBE_REQ_LEN 0x64 +#define RSI_DEF_BGSCAN_THRLD 0x0 +#define RSI_DEF_ROAM_THRLD 0xa +#define RSI_BGSCAN_PERIODICITY 0x1e +#define RSI_ACTIVE_SCAN_TIME 0x14 +#define RSI_PASSIVE_SCAN_TIME 0x46 +#define RSI_CHANNEL_SCAN_TIME 20 +struct rsi_bgscan_params { + u16 bgscan_threshold; + u16 roam_threshold; + u16 bgscan_periodicity; + u8 num_bgscan_channels; + u8 two_probe; + u16 active_scan_duration; + u16 passive_scan_duration; +}; + +struct vif_priv { + bool is_ht; + bool sgi; + u16 seq_start; + int vap_id; +}; + +struct rsi_event { + atomic_t event_condition; + wait_queue_head_t event_queue; +}; + +struct rsi_thread { + void (*thread_function)(void *); + struct completion completion; + struct task_struct *task; + struct rsi_event event; + atomic_t thread_done; +}; + +struct cqm_info { + s8 last_cqm_event_rssi; + int rssi_thold; + u32 rssi_hyst; +}; + +enum rsi_dfs_regions { + RSI_REGION_FCC = 0, + RSI_REGION_ETSI, + RSI_REGION_TELEC, + RSI_REGION_WORLD +}; + +struct rsi_9116_features { + u8 pll_mode; + u8 rf_type; + u8 wireless_mode; + u8 afe_type; + u8 enable_ppe; + u8 dpd; + u32 sifs_tx_enable; + u32 ps_options; +}; + +struct rsi_common { + struct rsi_hw *priv; + struct vif_priv vif_info[RSI_MAX_VIFS]; + + void *coex_cb; + bool mgmt_q_block; + struct version_info lmac_ver; + + struct rsi_thread tx_thread; + struct sk_buff_head tx_queue[NUM_EDCA_QUEUES + 2]; + struct completion wlan_init_completion; + /* Mutex declaration */ + struct mutex mutex; + /* Mutex used for tx thread */ + struct mutex tx_lock; + /* Mutex used for rx thread */ + struct mutex rx_lock; + u8 endpoint; + + /* Channel/band related */ + u8 band; + u8 num_supp_bands; + u8 channel_width; + + u16 rts_threshold; + u16 bitrate_mask[2]; + u32 fixedrate_mask[2]; + + u8 rf_reset; + struct transmit_q_stats tx_stats; + struct security_info secinfo; + struct wmm_qinfo tx_qinfo[NUM_EDCA_QUEUES]; + struct ieee80211_tx_queue_params edca_params[NUM_EDCA_QUEUES]; + u8 mac_addr[IEEE80211_ADDR_LEN]; + + /* state related */ + u32 fsm_state; + bool init_done; + u8 bb_rf_prog_count; + bool iface_down; + + /* Generic */ + u8 channel; + u8 *rx_data_pkt; + u8 mac_id; + u8 radio_id; + u16 rate_pwr[20]; + u16 min_rate; + + /* WMM algo related */ + u8 selected_qnum; + u32 pkt_cnt; + u8 min_weight; + + /* bgscan related */ + struct cqm_info cqm_info; + + bool hw_data_qs_blocked; + u8 driver_mode; + u8 coex_mode; + u16 oper_mode; + u8 lp_ps_handshake_mode; + u8 ulp_ps_handshake_mode; + u8 uapsd_bitmap; + u8 rf_power_val; + u8 wlan_rf_power_mode; + u8 obm_ant_sel_val; + int tx_power; + u8 ant_in_use; + /* Mutex used for writing packet to bus */ + struct mutex tx_bus_mutex; + bool hibernate_resume; + bool reinit_hw; + u8 wow_flags; + u16 beacon_interval; + u8 dtim_cnt; + + /* AP mode parameters */ + u8 beacon_enabled; + u16 beacon_cnt; + struct rsi_sta stations[RSI_MAX_ASSOC_STAS + 1]; + int num_stations; + int max_stations; + struct ieee80211_key_conf *key; + + /* Wi-Fi direct mode related */ + bool p2p_enabled; + struct timer_list roc_timer; + struct ieee80211_vif *roc_vif; + + bool eapol4_confirm; + void *bt_adapter; + + struct cfg80211_scan_request *hwscan; + struct rsi_bgscan_params bgscan; + struct rsi_9116_features w9116_features; + u8 bgscan_en; + u8 mac_ops_resumed; +}; + +struct eepromrw_info { + u32 offset; + u32 length; + u8 write; + u16 eeprom_erase; + u8 data[480]; +}; + +struct eeprom_read { + u16 length; + u16 off_set; +}; + +struct rsi_hw { + struct rsi_common *priv; + enum rsi_dev_model device_model; + struct ieee80211_hw *hw; + struct ieee80211_vif *vifs[RSI_MAX_VIFS]; + struct ieee80211_tx_queue_params edca_params[NUM_EDCA_QUEUES]; + struct ieee80211_supported_band sbands[NUM_NL80211_BANDS]; + + struct device *device; + u8 sc_nvifs; + + enum rsi_host_intf rsi_host_intf; + u16 block_size; + enum ps_state ps_state; + struct rsi_ps_info ps_info; + spinlock_t ps_lock; /*To protect power save config*/ + u32 usb_buffer_status_reg; +#ifdef CPTCFG_RSI_DEBUGFS + struct rsi_debugfs *dfsentry; + u8 num_debugfs_entries; +#endif + char *fw_file_name; + struct timer_list bl_cmd_timer; + bool blcmd_timer_expired; + u32 flash_capacity; + struct eepromrw_info eeprom; + u32 interrupt_status; + u8 dfs_region; + char country[2]; + void *rsi_dev; + struct rsi_host_intf_ops *host_intf_ops; + int (*check_hw_queue_status)(struct rsi_hw *adapter, u8 q_num); + int (*determine_event_timeout)(struct rsi_hw *adapter); +}; + +void rsi_print_version(struct rsi_common *common); + +struct rsi_host_intf_ops { + int (*read_pkt)(struct rsi_hw *adapter, u8 *pkt, u32 len); + int (*write_pkt)(struct rsi_hw *adapter, u8 *pkt, u32 len); + int (*master_access_msword)(struct rsi_hw *adapter, u16 ms_word); + int (*read_reg_multiple)(struct rsi_hw *adapter, u32 addr, + u8 *data, u16 count); + int (*write_reg_multiple)(struct rsi_hw *adapter, u32 addr, + u8 *data, u16 count); + int (*master_reg_read)(struct rsi_hw *adapter, u32 addr, + u32 *read_buf, u16 size); + int (*master_reg_write)(struct rsi_hw *adapter, + unsigned long addr, unsigned long data, + u16 size); + int (*load_data_master_write)(struct rsi_hw *adapter, u32 addr, + u32 instructions_size, u16 block_size, + u8 *fw); + int (*reinit_device)(struct rsi_hw *adapter); + int (*ta_reset)(struct rsi_hw *adapter); +}; + +enum rsi_host_intf rsi_get_host_intf(void *priv); +void rsi_set_bt_context(void *priv, void *bt_context); + +#endif diff --git a/drivers/net/wireless/rsi/rsi_mgmt.h b/drivers/net/wireless/rsi/rsi_mgmt.h new file mode 100644 index 0000000..2ce2dcf --- /dev/null +++ b/drivers/net/wireless/rsi/rsi_mgmt.h @@ -0,0 +1,758 @@ +/** + * Copyright (c) 2014 Redpine Signals Inc. + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#ifndef __RSI_MGMT_H__ +#define __RSI_MGMT_H__ + +#include <linux/sort.h> +#include "rsi_boot_params.h" +#include "rsi_main.h" + +#define MAX_MGMT_PKT_SIZE 512 +#define RSI_NEEDED_HEADROOM 84 +#define RSI_RCV_BUFFER_LEN 2000 + +#define RSI_11B_MODE 0 +#define RSI_11G_MODE BIT(7) +#define RETRY_COUNT 8 +#define RETRY_LONG 4 +#define RETRY_SHORT 7 +#define WMM_SHORT_SLOT_TIME 9 +#define SIFS_DURATION 16 + +#define EAPOL4_PACKET_LEN 0x85 +#define KEY_TYPE_CLEAR 0 +#define RSI_PAIRWISE_KEY 1 +#define RSI_GROUP_KEY 2 + +/* EPPROM_READ_ADDRESS */ +#define WLAN_MAC_EEPROM_ADDR 40 +#define WLAN_MAC_MAGIC_WORD_LEN 0x01 +#define WLAN_HOST_MODE_LEN 0x04 +#define WLAN_FW_VERSION_LEN 0x08 +#define MAGIC_WORD 0x5A +#define WLAN_EEPROM_RFTYPE_ADDR 424 + +/*WOWLAN RESUME WAKEUP TYPES*/ +#define RSI_UNICAST_MAGIC_PKT BIT(0) +#define RSI_BROADCAST_MAGICPKT BIT(1) +#define RSI_EAPOL_PKT BIT(2) +#define RSI_DISCONNECT_PKT BIT(3) +#define RSI_HW_BMISS_PKT BIT(4) +#define RSI_INSERT_SEQ_IN_FW BIT(2) + +#define WOW_MAX_FILTERS_PER_LIST 16 +#define WOW_PATTERN_SIZE 256 + +/* Receive Frame Types */ +#define RSI_RX_DESC_MSG_TYPE_OFFSET 2 +#define TA_CONFIRM_TYPE 0x01 +#define RX_DOT11_MGMT 0x02 +#define TX_STATUS_IND 0x04 +#define BEACON_EVENT_IND 0x08 +#define EAPOL4_CONFIRM 1 +#define PROBEREQ_CONFIRM 2 +#define CARD_READY_IND 0x00 +#define SLEEP_NOTIFY_IND 0x06 +#define RSI_TX_STATUS_TYPE 15 +#define RSI_TX_STATUS 12 + +#define RSI_DELETE_PEER 0x0 +#define RSI_ADD_PEER 0x1 +#define START_AMPDU_AGGR 0x1 +#define STOP_AMPDU_AGGR 0x0 +#define INTERNAL_MGMT_PKT 0x99 + +#define PUT_BBP_RESET 0 +#define BBP_REG_WRITE 0 +#define RF_RESET_ENABLE BIT(3) +#define RATE_INFO_ENABLE BIT(0) +#define MORE_DATA_PRESENT BIT(1) +#define RSI_BROADCAST_PKT BIT(9) +#define RSI_DESC_REQUIRE_CFM_TO_HOST BIT(2) +#define RSI_ADD_DELTA_TSF_VAP_ID BIT(3) +#define RSI_FETCH_RETRY_CNT_FRM_HST BIT(4) +#define RSI_QOS_ENABLE BIT(12) +#define RSI_REKEY_PURPOSE BIT(13) +#define RSI_ENCRYPT_PKT BIT(15) +#define RSI_SET_PS_ENABLE BIT(12) + +#define RSI_CMDDESC_40MHZ BIT(4) +#define RSI_CMDDESC_UPPER_20_ENABLE BIT(5) +#define RSI_CMDDESC_LOWER_20_ENABLE BIT(6) +#define RSI_CMDDESC_FULL_40_ENABLE (BIT(5) | BIT(6)) +#define UPPER_20_ENABLE (0x2 << 12) +#define LOWER_20_ENABLE (0x4 << 12) +#define FULL40M_ENABLE 0x6 + +#define RSI_LMAC_CLOCK_80MHZ 0x1 +#define RSI_ENABLE_40MHZ (0x1 << 3) +#define ENABLE_SHORTGI_RATE BIT(9) + +#define RX_BA_INDICATION 1 +#define RSI_TBL_SZ 40 +#define MAX_RETRIES 8 +#define RSI_IFTYPE_STATION 0 + +#define STD_RATE_MCS7 0x07 +#define STD_RATE_MCS6 0x06 +#define STD_RATE_MCS5 0x05 +#define STD_RATE_MCS4 0x04 +#define STD_RATE_MCS3 0x03 +#define STD_RATE_MCS2 0x02 +#define STD_RATE_MCS1 0x01 +#define STD_RATE_MCS0 0x00 +#define STD_RATE_54 0x6c +#define STD_RATE_48 0x60 +#define STD_RATE_36 0x48 +#define STD_RATE_24 0x30 +#define STD_RATE_18 0x24 +#define STD_RATE_12 0x18 +#define STD_RATE_11 0x16 +#define STD_RATE_09 0x12 +#define STD_RATE_06 0x0C +#define STD_RATE_5_5 0x0B +#define STD_RATE_02 0x04 +#define STD_RATE_01 0x02 + +#define RSI_RF_TYPE 1 +#define RSI_RATE_00 0x00 +#define RSI_RATE_1 0x0 +#define RSI_RATE_2 0x2 +#define RSI_RATE_5_5 0x4 +#define RSI_RATE_11 0x6 +#define RSI_RATE_6 0x8b +#define RSI_RATE_9 0x8f +#define RSI_RATE_12 0x8a +#define RSI_RATE_18 0x8e +#define RSI_RATE_24 0x89 +#define RSI_RATE_36 0x8d +#define RSI_RATE_48 0x88 +#define RSI_RATE_54 0x8c +#define RSI_RATE_MCS0 0x100 +#define RSI_RATE_MCS1 0x101 +#define RSI_RATE_MCS2 0x102 +#define RSI_RATE_MCS3 0x103 +#define RSI_RATE_MCS4 0x104 +#define RSI_RATE_MCS5 0x105 +#define RSI_RATE_MCS6 0x106 +#define RSI_RATE_MCS7 0x107 +#define RSI_RATE_MCS7_SG 0x307 +#define RSI_RATE_AUTO 0xffff + +#define BW_20MHZ 0 +#define BW_40MHZ 1 + +#define EP_2GHZ_20MHZ 0 +#define EP_2GHZ_40MHZ 1 +#define EP_5GHZ_20MHZ 2 +#define EP_5GHZ_40MHZ 3 + +#define SIFS_TX_11N_VALUE 580 +#define SIFS_TX_11B_VALUE 346 +#define SHORT_SLOT_VALUE 360 +#define LONG_SLOT_VALUE 640 +#define OFDM_ACK_TOUT_VALUE 2720 +#define CCK_ACK_TOUT_VALUE 9440 +#define LONG_PREAMBLE 0x0000 +#define SHORT_PREAMBLE 0x0001 + +#define RSI_SUPP_FILTERS (FIF_ALLMULTI | FIF_PROBE_REQ |\ + FIF_BCN_PRBRESP_PROMISC) + +#define ANTENNA_SEL_INT 0x02 /* RF_OUT_2 / Integerated */ +#define ANTENNA_SEL_UFL 0x03 /* RF_OUT_1 / U.FL */ +#define ANTENNA_MASK_VALUE 0x00ff +#define ANTENNA_SEL_TYPE 1 + +/* Rx filter word definitions */ +#define PROMISCOUS_MODE BIT(0) +#define ALLOW_DATA_ASSOC_PEER BIT(1) +#define ALLOW_MGMT_ASSOC_PEER BIT(2) +#define ALLOW_CTRL_ASSOC_PEER BIT(3) +#define DISALLOW_BEACONS BIT(4) +#define ALLOW_CONN_PEER_MGMT_WHILE_BUF_FULL BIT(5) +#define DISALLOW_BROADCAST_DATA BIT(6) + +#define RSI_MPDU_DENSITY 0x8 +#define RSI_CHAN_RADAR BIT(7) +#define RSI_BEACON_INTERVAL 200 +#define RSI_DTIM_COUNT 2 + +#define RSI_PS_DISABLE_IND BIT(15) +#define RSI_PS_ENABLE 1 +#define RSI_PS_DISABLE 0 +#define RSI_DEEP_SLEEP 1 +#define RSI_CONNECTED_SLEEP 2 +#define RSI_SLEEP_REQUEST 1 +#define RSI_WAKEUP_REQUEST 2 + +#define RSI_IEEE80211_UAPSD_QUEUES \ + (IEEE80211_WMM_IE_STA_QOSINFO_AC_VO | \ + IEEE80211_WMM_IE_STA_QOSINFO_AC_VI | \ + IEEE80211_WMM_IE_STA_QOSINFO_AC_BE | \ + IEEE80211_WMM_IE_STA_QOSINFO_AC_BK) + +#define RSI_DESC_VAP_ID_MASK 0xC000u +#define RSI_DESC_VAP_ID_OFST 14 +#define RSI_DATA_DESC_MAC_BBP_INFO BIT(0) +#define RSI_DATA_DESC_NO_ACK_IND BIT(9) +#define RSI_DATA_DESC_QOS_EN BIT(12) +#define RSI_DATA_DESC_NORMAL_FRAME 0x00 +#define RSI_DATA_DESC_DTIM_BEACON_GATED_FRAME BIT(10) +#define RSI_DATA_DESC_BEACON_FRAME BIT(11) +#define RSI_DATA_DESC_DTIM_BEACON (BIT(10) | BIT(11)) +#define RSI_DATA_DESC_INSERT_TSF BIT(15) +#define RSI_DATA_DESC_INSERT_SEQ_NO BIT(2) + +#ifdef CONFIG_PM +#define RSI_WOW_ANY BIT(1) +#define RSI_WOW_GTK_REKEY BIT(3) +#define RSI_WOW_MAGIC_PKT BIT(4) +#define RSI_WOW_DISCONNECT BIT(5) +#endif + +#define RSI_MAX_TX_AGGR_FRMS 8 +#define RSI_MAX_RX_AGGR_FRMS 8 + +#define RSI_MAX_SCAN_SSIDS 16 +#define RSI_MAX_SCAN_IE_LEN 256 + +enum opmode { + RSI_OPMODE_UNSUPPORTED = -1, + RSI_OPMODE_AP = 0, + RSI_OPMODE_STA, + RSI_OPMODE_P2P_GO, + RSI_OPMODE_P2P_CLIENT +}; + +enum vap_status { + VAP_ADD = 1, + VAP_DELETE = 2, + VAP_UPDATE = 3 +}; + +enum peer_type { + PEER_TYPE_AP, + PEER_TYPE_STA, +}; +extern struct ieee80211_rate rsi_rates[12]; +extern const u16 rsi_mcsrates[8]; + +enum sta_notify_events { + STA_CONNECTED = 0, + STA_DISCONNECTED, + STA_TX_ADDBA_DONE, + STA_TX_DELBA, + STA_RX_ADDBA_DONE, + STA_RX_DELBA +}; + +/* Send Frames Types */ +enum cmd_frame_type { + TX_DOT11_MGMT, + RESET_MAC_REQ, + RADIO_CAPABILITIES, + BB_PROG_VALUES_REQUEST, + RF_PROG_VALUES_REQUEST, + WAKEUP_SLEEP_REQUEST, + SCAN_REQUEST, + TSF_UPDATE, + PEER_NOTIFY, + BLOCK_HW_QUEUE, + SET_KEY_REQ, + AUTO_RATE_IND, + BOOTUP_PARAMS_REQUEST, + VAP_CAPABILITIES, + EEPROM_READ, + EEPROM_WRITE, + GPIO_PIN_CONFIG , + SET_RX_FILTER, + AMPDU_IND, + STATS_REQUEST_FRAME, + BB_BUF_PROG_VALUES_REQ, + BBP_PROG_IN_TA, + BG_SCAN_PARAMS, + BG_SCAN_PROBE_REQ, + CW_MODE_REQ, + PER_CMD_PKT, + ANT_SEL_FRAME = 0x20, + VAP_DYNAMIC_UPDATE = 0x27, + COMMON_DEV_CONFIG = 0x28, + RADIO_PARAMS_UPDATE = 0x29, + WOWLAN_CONFIG_PARAMS = 0x2B, + FEATURES_ENABLE = 0x33, + WOWLAN_WAKEUP_REASON = 0xc5 +}; + +struct rsi_mac_frame { + __le16 desc_word[8]; +} __packed; + +#define PWR_SAVE_WAKEUP_IND BIT(0) +#define TCP_CHECK_SUM_OFFLOAD BIT(1) +#define CONFIRM_REQUIRED_TO_HOST BIT(2) +#define ADD_DELTA_TSF BIT(3) +#define FETCH_RETRY_CNT_FROM_HOST_DESC BIT(4) +#define EOSP_INDICATION BIT(5) +#define REQUIRE_TSF_SYNC_CONFIRM BIT(6) +#define ENCAP_MGMT_PKT BIT(7) +#define DESC_IMMEDIATE_WAKEUP BIT(15) + +struct rsi_xtended_desc { + u8 confirm_frame_type; + u8 retry_cnt; + u16 reserved; +}; + +struct rsi_cmd_desc_dword0 { + __le16 len_qno; + u8 frame_type; + u8 misc_flags; +}; + +struct rsi_cmd_desc_dword1 { + u8 xtend_desc_size; + u8 reserved1; + __le16 reserved2; +}; + +struct rsi_cmd_desc_dword2 { + __le32 pkt_info; /* Packet specific data */ +}; + +struct rsi_cmd_desc_dword3 { + __le16 token; + u8 qid_tid; + u8 sta_id; +}; + +struct rsi_cmd_desc { + struct rsi_cmd_desc_dword0 desc_dword0; + struct rsi_cmd_desc_dword1 desc_dword1; + struct rsi_cmd_desc_dword2 desc_dword2; + struct rsi_cmd_desc_dword3 desc_dword3; +}; + +struct rsi_boot_params { + __le16 desc_word[8]; + struct bootup_params bootup_params; +} __packed; + +struct rsi_boot_params_9116 { + struct rsi_cmd_desc_dword0 desc_dword0; + struct rsi_cmd_desc_dword1 desc_dword1; + struct rsi_cmd_desc_dword2 desc_dword2; + __le16 reserved; + __le16 umac_clk; + struct bootup_params_9116 bootup_params; +} __packed; + +struct rsi_peer_notify { + struct rsi_cmd_desc desc; + u8 mac_addr[6]; + __le16 command; + __le16 mpdu_density; + __le16 reserved; + __le32 sta_flags; +} __packed; + +/* Aggregation params flags */ +#define RSI_AGGR_PARAMS_TID_MASK 0xf +#define RSI_AGGR_PARAMS_START BIT(4) +#define RSI_AGGR_PARAMS_RX_AGGR BIT(5) +struct rsi_aggr_params { + struct rsi_cmd_desc_dword0 desc_dword0; + struct rsi_cmd_desc_dword0 desc_dword1; + __le16 seq_start; + __le16 baw_size; + __le16 token; + u8 aggr_params; + u8 peer_id; +} __packed; + +struct rsi_bb_rf_prog { + struct rsi_cmd_desc_dword0 desc_dword0; + __le16 reserved1; + u8 rf_power_mode; + u8 reserved2; + u8 endpoint; + u8 reserved3; + __le16 reserved4; + __le16 reserved5; + __le16 flags; +} __packed; + +struct rsi_chan_config { + struct rsi_cmd_desc_dword0 desc_dword0; + struct rsi_cmd_desc_dword1 desc_dword1; + u8 channel_number; + u8 antenna_gain_offset_2g; + u8 antenna_gain_offset_5g; + u8 channel_width; + __le16 tx_power; + u8 region_rftype; + u8 flags; +} __packed; + +struct rsi_vap_caps { + struct rsi_cmd_desc_dword0 desc_dword0; + u8 reserved1; + u8 status; + __le16 reserved2; + u8 vif_type; + u8 channel_bw; + __le16 antenna_info; + __le16 token; + u8 radioid_macid; + u8 vap_id; + u8 mac_addr[6]; + __le16 keep_alive_period; + u8 bssid[6]; + __le16 reserved4; + __le32 flags; + __le16 frag_threshold; + __le16 rts_threshold; + __le32 default_mgmt_rate; + __le16 default_ctrl_rate; + __le16 ctrl_rate_flags; + __le32 default_data_rate; + __le16 beacon_interval; + __le16 dtim_period; + __le16 beacon_miss_threshold; +} __packed; + +struct rsi_ant_sel_frame { + struct rsi_cmd_desc_dword0 desc_dword0; + u8 reserved; + u8 sub_frame_type; + __le16 ant_value; + __le32 reserved1; + __le32 reserved2; +} __packed; + +struct rsi_dynamic_s { + struct rsi_cmd_desc_dword0 desc_dword0; + struct rsi_cmd_desc_dword1 desc_dword1; + struct rsi_cmd_desc_dword2 desc_dword2; + struct rsi_cmd_desc_dword3 desc_dword3; + struct framebody { + __le16 data_rate; + __le16 mgmt_rate; + __le16 keep_alive_period; + } frame_body; +} __packed; + +/* Key descriptor flags */ +#define RSI_KEY_TYPE_BROADCAST BIT(1) +#define RSI_WEP_KEY BIT(2) +#define RSI_WEP_KEY_104 BIT(3) +#define RSI_CIPHER_WPA BIT(4) +#define RSI_CIPHER_TKIP BIT(5) +#define RSI_KEY_MODE_AP BIT(7) +#define RSI_PROTECT_DATA_FRAMES BIT(13) +#define RSI_KEY_ID_MASK 0xC0 +#define RSI_KEY_ID_OFFSET 14 +struct rsi_set_key { + struct rsi_cmd_desc_dword0 desc_dword0; + struct rsi_cmd_desc_dword1 desc_dword1; + __le16 key_desc; + __le32 bpn; + u8 sta_id; + u8 vap_id; + u8 key[4][32]; + u8 tx_mic_key[8]; + u8 rx_mic_key[8]; +} __packed; + +struct rsi_auto_rate { + struct rsi_cmd_desc desc; + __le16 failure_limit; + __le16 initial_boundary; + __le16 max_threshold_limt; + __le16 num_supported_rates; + __le16 aarf_rssi; + __le16 moderate_rate_inx; + __le16 collision_tolerance; + __le16 supported_rates[40]; +} __packed; + +#define QUIET_INFO_VALID BIT(0) +#define QUIET_ENABLE BIT(1) +struct rsi_block_unblock_data { + struct rsi_cmd_desc_dword0 desc_dword0; + u8 xtend_desc_size; + u8 host_quiet_info; + __le16 reserved; + __le16 block_q_bitmap; + __le16 unblock_q_bitmap; + __le16 token; + __le16 flush_q_bitmap; +} __packed; + +struct qos_params { + __le16 cont_win_min_q; + __le16 cont_win_max_q; + __le16 aifsn_val_q; + __le16 txop_q; +} __packed; + +struct rsi_radio_caps { + struct rsi_cmd_desc_dword0 desc_dword0; + struct rsi_cmd_desc_dword0 desc_dword1; + u8 channel_num; + u8 rf_model; + __le16 ppe_ack_rate; + __le16 mode_11j; + u8 radio_cfg_info; + u8 radio_info; + struct qos_params qos_params[MAX_HW_QUEUES]; + u8 num_11n_rates; + u8 num_11ac_rates; + __le16 gcpd_per_rate[20]; + __le16 sifs_tx_11n; + __le16 sifs_tx_11b; + __le16 slot_rx_11n; + __le16 ofdm_ack_tout; + __le16 cck_ack_tout; + __le16 preamble_type; +} __packed; + +/* ULP GPIO flags */ +#define RSI_GPIO_MOTION_SENSOR_ULP_WAKEUP BIT(0) +#define RSI_GPIO_SLEEP_IND_FROM_DEVICE BIT(1) +#define RSI_GPIO_2_ULP BIT(2) +#define RSI_GPIO_PUSH_BUTTON_ULP_WAKEUP BIT(3) + +/* SOC GPIO flags */ +#define RSI_GPIO_0_PSPI_CSN_0 BIT(0) +#define RSI_GPIO_1_PSPI_CSN_1 BIT(1) +#define RSI_GPIO_2_HOST_WAKEUP_INTR BIT(2) +#define RSI_GPIO_3_PSPI_DATA_0 BIT(3) +#define RSI_GPIO_4_PSPI_DATA_1 BIT(4) +#define RSI_GPIO_5_PSPI_DATA_2 BIT(5) +#define RSI_GPIO_6_PSPI_DATA_3 BIT(6) +#define RSI_GPIO_7_I2C_SCL BIT(7) +#define RSI_GPIO_8_I2C_SDA BIT(8) +#define RSI_GPIO_9_UART1_RX BIT(9) +#define RSI_GPIO_10_UART1_TX BIT(10) +#define RSI_GPIO_11_UART1_RTS_I2S_CLK BIT(11) +#define RSI_GPIO_12_UART1_CTS_I2S_WS BIT(12) +#define RSI_GPIO_13_DBG_UART_RX_I2S_DIN BIT(13) +#define RSI_GPIO_14_DBG_UART_RX_I2S_DOUT BIT(14) +#define RSI_GPIO_15_LP_WAKEUP_BOOT_BYPASS BIT(15) +#define RSI_GPIO_16_LED_0 BIT(16) +#define RSI_GPIO_17_BTCOEX_WLAN_ACT_EXT_ANT_SEL BIT(17) +#define RSI_GPIO_18_BTCOEX_BT_PRIO_EXT_ANT_SEL BIT(18) +#define RSI_GPIO_19_BTCOEX_BT_ACT_EXT_ON_OFF BIT(19) +#define RSI_GPIO_20_RF_RESET BIT(20) +#define RSI_GPIO_21_SLEEP_IND_FROM_DEVICE BIT(21) + +#define RSI_UNUSED_SOC_GPIO_BITMAP (RSI_GPIO_9_UART1_RX | \ + RSI_GPIO_10_UART1_TX | \ + RSI_GPIO_11_UART1_RTS_I2S_CLK | \ + RSI_GPIO_12_UART1_CTS_I2S_WS | \ + RSI_GPIO_13_DBG_UART_RX_I2S_DIN | \ + RSI_GPIO_14_DBG_UART_RX_I2S_DOUT | \ + RSI_GPIO_15_LP_WAKEUP_BOOT_BYPASS | \ + RSI_GPIO_17_BTCOEX_WLAN_ACT_EXT_ANT_SEL | \ + RSI_GPIO_18_BTCOEX_BT_PRIO_EXT_ANT_SEL | \ + RSI_GPIO_19_BTCOEX_BT_ACT_EXT_ON_OFF | \ + RSI_GPIO_21_SLEEP_IND_FROM_DEVICE) + +#define RSI_UNUSED_ULP_GPIO_BITMAP (RSI_GPIO_MOTION_SENSOR_ULP_WAKEUP | \ + RSI_GPIO_SLEEP_IND_FROM_DEVICE | \ + RSI_GPIO_2_ULP | \ + RSI_GPIO_PUSH_BUTTON_ULP_WAKEUP); +struct rsi_config_vals { + __le16 len_qno; + u8 pkt_type; + u8 misc_flags; + __le16 reserved1[6]; + u8 lp_ps_handshake; + u8 ulp_ps_handshake; + u8 sleep_config_params; /* 0 for no handshake, + * 1 for GPIO based handshake, + * 2 packet handshake + */ + u8 unused_ulp_gpio; + __le32 unused_soc_gpio_bitmap; + u8 ext_pa_or_bt_coex_en; + u8 opermode; + u8 wlan_rf_pwr_mode; + u8 bt_rf_pwr_mode; + u8 zigbee_rf_pwr_mode; + u8 driver_mode; + u8 region_code; + u8 antenna_sel_val; + u8 reserved2[16]; +} __packed; + +/* Packet info flags */ +#define RSI_EEPROM_HDR_SIZE_OFFSET 8 +#define RSI_EEPROM_HDR_SIZE_MASK 0x300 +#define RSI_EEPROM_LEN_OFFSET 20 +#define RSI_EEPROM_LEN_MASK 0xFFF00000 + +struct rsi_eeprom_read_frame { + __le16 len_qno; + u8 pkt_type; + u8 misc_flags; + __le32 pkt_info; + __le32 eeprom_offset; + __le16 delay_ms; + __le16 reserved3; +} __packed; + +struct rsi_request_ps { + struct rsi_cmd_desc desc; + struct ps_sleep_params ps_sleep; + u8 ps_mimic_support; + u8 ps_uapsd_acs; + u8 ps_uapsd_wakeup_period; + u8 reserved; + __le32 ps_listen_interval; + __le32 ps_dtim_interval_duration; + __le16 ps_num_dtim_intervals; +} __packed; + +struct rsi_wowlan_req { + struct rsi_cmd_desc desc; + u8 sourceid[ETH_ALEN]; + u16 wow_flags; + u16 host_sleep_status; +} __packed; + +#define RSI_START_BGSCAN 1 +#define RSI_STOP_BGSCAN 0 +#define HOST_BG_SCAN_TRIG BIT(4) +struct rsi_bgscan_config { + struct rsi_cmd_desc_dword0 desc_dword0; + __le64 reserved; + __le32 reserved1; + __le16 bgscan_threshold; + __le16 roam_threshold; + __le16 bgscan_periodicity; + u8 num_bgscan_channels; + u8 two_probe; + __le16 active_scan_duration; + __le16 passive_scan_duration; + __le16 channels2scan[MAX_BGSCAN_CHANNELS_DUAL_BAND]; +} __packed; + +struct rsi_bgscan_probe { + struct rsi_cmd_desc_dword0 desc_dword0; + __le64 reserved; + __le32 reserved1; + __le16 mgmt_rate; + __le16 flags; + __le16 def_chan; + __le16 channel_scan_time; + __le16 probe_req_length; +} __packed; + +#define RSI_DUTY_CYCLING BIT(0) +#define RSI_END_OF_FRAME BIT(1) +#define RSI_SIFS_TX_ENABLE BIT(2) +#define RSI_DPD BIT(3) +struct rsi_wlan_9116_features { + struct rsi_cmd_desc desc; + u8 pll_mode; + u8 rf_type; + u8 wireless_mode; + u8 enable_ppe; + u8 afe_type; + u8 reserved1; + __le16 reserved2; + __le32 feature_enable; +}; + +static inline u32 rsi_get_queueno(u8 *addr, u16 offset) +{ + return (le16_to_cpu(*(__le16 *)&addr[offset]) & 0x7000) >> 12; +} + +static inline u32 rsi_get_length(u8 *addr, u16 offset) +{ + return (le16_to_cpu(*(__le16 *)&addr[offset])) & 0x0fff; +} + +static inline u8 rsi_get_extended_desc(u8 *addr, u16 offset) +{ + return le16_to_cpu(*((__le16 *)&addr[offset + 4])) & 0x00ff; +} + +static inline u8 rsi_get_rssi(u8 *addr) +{ + return *(u8 *)(addr + FRAME_DESC_SZ); +} + +static inline u8 rsi_get_channel(u8 *addr) +{ + return *(char *)(addr + 15); +} + +static inline void rsi_set_len_qno(__le16 *addr, u16 len, u8 qno) +{ + *addr = cpu_to_le16(len | ((qno & 7) << 12)); +} + +int rsi_handle_card_ready(struct rsi_common *common, u8 *msg); +int rsi_mgmt_pkt_recv(struct rsi_common *common, u8 *msg); +int rsi_set_vap_capabilities(struct rsi_common *common, enum opmode mode, + u8 *mac_addr, u8 vap_id, u8 vap_status); +int rsi_send_aggregation_params_frame(struct rsi_common *common, u16 tid, + u16 ssn, u8 buf_size, u8 event, + u8 sta_id); +int rsi_hal_load_key(struct rsi_common *common, u8 *data, u16 key_len, + u8 key_type, u8 key_id, u32 cipher, s16 sta_id, + struct ieee80211_vif *vif); +int rsi_set_channel(struct rsi_common *common, + struct ieee80211_channel *channel); +int rsi_send_vap_dynamic_update(struct rsi_common *common); +int rsi_send_block_unblock_frame(struct rsi_common *common, bool event); +int rsi_hal_send_sta_notify_frame(struct rsi_common *common, enum opmode opmode, + u8 notify_event, const unsigned char *bssid, + u8 qos_enable, u16 aid, u16 sta_id, + struct ieee80211_vif *vif); +void rsi_inform_bss_status(struct rsi_common *common, enum opmode opmode, + u8 status, const u8 *addr, u8 qos_enable, u16 aid, + struct ieee80211_sta *sta, u16 sta_id, + u16 assoc_cap, struct ieee80211_vif *vif); +void rsi_indicate_pkt_to_os(struct rsi_common *common, struct sk_buff *skb); +int rsi_mac80211_attach(struct rsi_common *common); +void rsi_indicate_tx_status(struct rsi_hw *common, struct sk_buff *skb, + int status); +bool rsi_is_cipher_wep(struct rsi_common *common); +void rsi_core_qos_processor(struct rsi_common *common); +void rsi_core_xmit(struct rsi_common *common, struct sk_buff *skb); +int rsi_send_mgmt_pkt(struct rsi_common *common, struct sk_buff *skb); +int rsi_send_data_pkt(struct rsi_common *common, struct sk_buff *skb); +int rsi_band_check(struct rsi_common *common, struct ieee80211_channel *chan); +int rsi_send_rx_filter_frame(struct rsi_common *common, u16 rx_filter_word); +int rsi_send_radio_params_update(struct rsi_common *common); +int rsi_set_antenna(struct rsi_common *common, u8 antenna); +#ifdef CONFIG_PM +int rsi_send_wowlan_request(struct rsi_common *common, u16 flags, + u16 sleep_status); +#endif +int rsi_send_ps_request(struct rsi_hw *adapter, bool enable, + struct ieee80211_vif *vif); +void init_bgscan_params(struct rsi_common *common); +int rsi_send_bgscan_params(struct rsi_common *common, int enable); +int rsi_send_bgscan_probe_req(struct rsi_common *common, + struct ieee80211_vif *vif); +#endif diff --git a/drivers/net/wireless/rsi/rsi_ps.h b/drivers/net/wireless/rsi/rsi_ps.h new file mode 100644 index 0000000..98ff6a4 --- /dev/null +++ b/drivers/net/wireless/rsi/rsi_ps.h @@ -0,0 +1,63 @@ +/** + * Copyright (c) 2017 Redpine Signals Inc. + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#ifndef __RSI_PS_H__ +#define __RSI_PS_H__ + +#define PS_CONFIRM_INDEX 12 +#define RSI_DEF_DS_WAKEUP_PERIOD 200 +#define RSI_DEF_LISTEN_INTERVAL 200 +#define RSI_SLEEP_TYPE_LP 1 + +enum ps_state { + PS_NONE = 0, + PS_ENABLE_REQ_SENT = 1, + PS_DISABLE_REQ_SENT = 2, + PS_ENABLED = 3 +}; + +struct ps_sleep_params { + u8 enable; + u8 sleep_type; + u8 connected_sleep; + u8 reserved1; + __le16 num_bcns_per_lis_int; + __le16 wakeup_type; + __le32 sleep_duration; +} __packed; + +struct rsi_ps_info { + u8 enabled; + u8 sleep_type; + u8 tx_threshold; + u8 rx_threshold; + u8 tx_hysterisis; + u8 rx_hysterisis; + u16 monitor_interval; + u32 listen_interval; + u16 num_bcns_per_lis_int; + u32 dtim_interval_duration; + u16 num_dtims_per_sleep; + u32 deep_sleep_wakeup_period; +} __packed; + +char *str_psstate(enum ps_state state); +void rsi_enable_ps(struct rsi_hw *adapter, struct ieee80211_vif *vif); +void rsi_disable_ps(struct rsi_hw *adapter, struct ieee80211_vif *vif); +int rsi_handle_ps_confirm(struct rsi_hw *adapter, u8 *msg); +void rsi_default_ps_params(struct rsi_hw *hw); +void rsi_conf_uapsd(struct rsi_hw *adapter, struct ieee80211_vif *vif); +#endif diff --git a/drivers/net/wireless/rsi/rsi_sdio.h b/drivers/net/wireless/rsi/rsi_sdio.h new file mode 100644 index 0000000..c5cfb62 --- /dev/null +++ b/drivers/net/wireless/rsi/rsi_sdio.h @@ -0,0 +1,148 @@ +/** + * @section LICENSE + * Copyright (c) 2014 Redpine Signals Inc. + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + */ + +#ifndef __RSI_SDIO_INTF__ +#define __RSI_SDIO_INTF__ + +#include <linux/mmc/card.h> +#include <linux/mmc/mmc.h> +#include <linux/mmc/host.h> +#include <linux/mmc/sdio_func.h> +#include <linux/mmc/sdio.h> +#include <linux/mmc/sd.h> +#include <linux/mmc/sdio_ids.h> +#include "rsi_main.h" + +#define RSI_SDIO_VENDOR_ID 0x041B +#define RSI_SDIO_PID_9113 0x9330 +#define RSI_SDIO_PID_9116 0x9116 + +enum sdio_interrupt_type { + BUFFER_FULL = 0x0, + BUFFER_AVAILABLE = 0x2, + FIRMWARE_ASSERT_IND = 0x3, + MSDU_PACKET_PENDING = 0x4, + UNKNOWN_INT = 0XE +}; + +/* Buffer status register related info */ +#define PKT_BUFF_SEMI_FULL 0 +#define PKT_BUFF_FULL 1 +#define PKT_MGMT_BUFF_FULL 2 +#define MSDU_PKT_PENDING 3 +#define RECV_NUM_BLOCKS 4 +/* Interrupt Bit Related Macros */ +#define PKT_BUFF_AVAILABLE 1 +#define FW_ASSERT_IND 2 + +#define RSI_MASTER_REG_BUF_SIZE 12 + +#define RSI_DEVICE_BUFFER_STATUS_REGISTER 0xf3 +#define RSI_FN1_INT_REGISTER 0xf9 +#define RSI_INT_ENABLE_REGISTER 0x04 +#define RSI_INT_ENABLE_MASK 0xfc +#define RSI_SD_REQUEST_MASTER 0x10000 + +/* FOR SD CARD ONLY */ +#define SDIO_RX_NUM_BLOCKS_REG 0x000F1 +#define SDIO_FW_STATUS_REG 0x000F2 +#define SDIO_NXT_RD_DELAY2 0x000F5 +#define SDIO_MASTER_ACCESS_MSBYTE 0x000FA +#define SDIO_MASTER_ACCESS_LSBYTE 0x000FB +#define SDIO_READ_START_LVL 0x000FC +#define SDIO_READ_FIFO_CTL 0x000FD +#define SDIO_WRITE_FIFO_CTL 0x000FE +#define SDIO_WAKEUP_REG 0x000FF +#define SDIO_FUN1_INTR_CLR_REG 0x0008 +#define SDIO_REG_HIGH_SPEED 0x0013 + +#define RSI_GET_SDIO_INTERRUPT_TYPE(_I, TYPE) \ + { \ + TYPE = \ + (_I & (1 << PKT_BUFF_AVAILABLE)) ? \ + BUFFER_AVAILABLE : \ + (_I & (1 << MSDU_PKT_PENDING)) ? \ + MSDU_PACKET_PENDING : \ + (_I & (1 << FW_ASSERT_IND)) ? \ + FIRMWARE_ASSERT_IND : UNKNOWN_INT; \ + } + +/* common registers in SDIO function1 */ +#define TA_SOFT_RESET_REG 0x0004 +#define TA_TH0_PC_REG 0x0400 +#define TA_HOLD_THREAD_REG 0x0844 +#define TA_RELEASE_THREAD_REG 0x0848 + +#define TA_SOFT_RST_CLR 0 +#define TA_SOFT_RST_SET BIT(0) +#define TA_PC_ZERO 0 +#define TA_HOLD_THREAD_VALUE 0xF +#define TA_RELEASE_THREAD_VALUE 0xF +#define TA_BASE_ADDR 0x2200 +#define MISC_CFG_BASE_ADDR 0x4105 + +struct receive_info { + bool buffer_full; + bool semi_buffer_full; + bool mgmt_buffer_full; + u32 mgmt_buf_full_counter; + u32 buf_semi_full_counter; + u8 watch_bufferfull_count; + u32 sdio_intr_status_zero; + u32 sdio_int_counter; + u32 total_sdio_msdu_pending_intr; + u32 total_sdio_unknown_intr; + u32 buf_full_counter; + u32 buf_available_counter; +}; + +struct rsi_sdio_rx_q { + u8 num_rx_pkts; + struct sk_buff_head head; +}; + +struct rsi_91x_sdiodev { + struct sdio_func *pfunction; + struct task_struct *sdio_irq_task; + struct receive_info rx_info; + u32 next_read_delay; + u32 sdio_high_speed_enable; + u8 sdio_clock_speed; + u32 cardcapability; + u8 prev_desc[16]; + u16 tx_blk_size; + u8 write_fail; + bool buff_status_updated; + struct rsi_sdio_rx_q rx_q; + struct rsi_thread rx_thread; +}; + +void rsi_interrupt_handler(struct rsi_hw *adapter); +int rsi_init_sdio_slave_regs(struct rsi_hw *adapter); +int rsi_sdio_read_register(struct rsi_hw *adapter, u32 addr, u8 *data); +int rsi_sdio_host_intf_read_pkt(struct rsi_hw *adapter, u8 *pkt, u32 length); +int rsi_sdio_write_register(struct rsi_hw *adapter, u8 function, + u32 addr, u8 *data); +int rsi_sdio_write_register_multiple(struct rsi_hw *adapter, u32 addr, + u8 *data, u16 count); +int rsi_sdio_master_access_msword(struct rsi_hw *adapter, u16 ms_word); +void rsi_sdio_ack_intr(struct rsi_hw *adapter, u8 int_bit); +int rsi_sdio_determine_event_timeout(struct rsi_hw *adapter); +int rsi_sdio_check_buffer_status(struct rsi_hw *adapter, u8 q_num); +void rsi_sdio_rx_thread(struct rsi_common *common); +#endif diff --git a/drivers/net/wireless/rsi/rsi_usb.h b/drivers/net/wireless/rsi/rsi_usb.h new file mode 100644 index 0000000..8702f43 --- /dev/null +++ b/drivers/net/wireless/rsi/rsi_usb.h @@ -0,0 +1,83 @@ +/** + * @section LICENSE + * Copyright (c) 2014 Redpine Signals Inc. + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#ifndef __RSI_USB_INTF__ +#define __RSI_USB_INTF__ + +#include <linux/usb.h> +#include "rsi_main.h" +#include "rsi_common.h" + +#define RSI_USB_VENDOR_ID 0x1618 +#define RSI_USB_PID_9113 0x9113 +#define RSI_USB_PID_9116 0x9116 + +#define USB_INTERNAL_REG_1 0x25000 +#define RSI_USB_READY_MAGIC_NUM 0xab +#define FW_STATUS_REG 0x41050012 +#define RSI_TA_HOLD_REG 0x22000844 +#define RSI_FW_WDT_DISABLE_REQ 0x69 + +#define USB_VENDOR_REGISTER_READ 0x15 +#define USB_VENDOR_REGISTER_WRITE 0x16 +#define RSI_USB_TX_HEAD_ROOM 128 + +#define MAX_RX_URBS 2 +#define MAX_BULK_EP 8 +#define WLAN_EP 1 +#define BT_EP 2 + +#define RSI_USB_BUF_SIZE 4096 +#define RSI_USB_CTRL_BUF_SIZE 0x04 + +struct rx_usb_ctrl_block { + u8 *data; + struct urb *rx_urb; + struct sk_buff *rx_skb; + u8 ep_num; +}; + +struct rsi_91x_usbdev { + void *priv; + struct rsi_thread rx_thread; + u8 endpoint; + struct usb_device *usbdev; + struct usb_interface *pfunction; + struct rx_usb_ctrl_block rx_cb[MAX_RX_URBS]; + u8 *tx_buffer; + __le16 bulkin_size[MAX_BULK_EP]; + u8 bulkin_endpoint_addr[MAX_BULK_EP]; + __le16 bulkout_size[MAX_BULK_EP]; + u8 bulkout_endpoint_addr[MAX_BULK_EP]; + u32 tx_blk_size; + u8 write_fail; + struct sk_buff_head rx_q; +}; + +static inline int rsi_usb_check_queue_status(struct rsi_hw *adapter, u8 q_num) +{ + /* In USB, there isn't any need to check the queue status */ + return QUEUE_NOT_FULL; +} + +static inline int rsi_usb_event_timeout(struct rsi_hw *adapter) +{ + return EVENT_WAIT_FOREVER; +} + +void rsi_usb_rx_thread(struct rsi_common *common); +#endif |