diff options
Diffstat (limited to 'drivers/net/wireless/rsi/rsi_91x_mgmt.c')
| -rw-r--r-- | drivers/net/wireless/rsi/rsi_91x_mgmt.c | 1879 |
1 files changed, 1879 insertions, 0 deletions
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..1095df7 --- /dev/null +++ b/drivers/net/wireless/rsi/rsi_91x_mgmt.c @@ -0,0 +1,1879 @@ +/** + * 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_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 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; +} + +/** + * 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; + + 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++) { + 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 recieved packet. + * @type: Type of recieved 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); +} + +/** + * 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); + + 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) { + 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); +} + +/** + * rsi_set_antenna() - This fuction 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"); + 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 + +/** + * 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) { + 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 (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 WAKEUP_SLEEP_REQUEST: + rsi_dbg(INFO_ZONE, "Wakeup/Sleep confirmation.\n"); + return rsi_handle_ps_confirm(adapter, msg); + 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) +{ + 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"); + + /* 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 (rsi_load_bootup_params(common)) { + common->fsm_state = FSM_CARD_NOT_READY; + return -EINVAL; + } + 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 + * recieved 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 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; +} |