diff options
Diffstat (limited to 'drivers/net/wireless/ath/ath6kl/init.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath6kl/init.c | 1943 |
1 files changed, 1943 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath6kl/init.c b/drivers/net/wireless/ath/ath6kl/init.c new file mode 100644 index 0000000..58fb227 --- /dev/null +++ b/drivers/net/wireless/ath/ath6kl/init.c @@ -0,0 +1,1943 @@ + +/* + * Copyright (c) 2011 Atheros Communications Inc. + * Copyright (c) 2011-2012 Qualcomm Atheros, 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/moduleparam.h> +#include <linux/errno.h> +#include <linux/export.h> +#include <linux/of.h> +#include <linux/mmc/sdio_func.h> +#include <linux/vmalloc.h> + +#include "core.h" +#include "cfg80211.h" +#include "target.h" +#include "debug.h" +#include "hif-ops.h" +#include "htc-ops.h" + +static const struct ath6kl_hw hw_list[] = { + { + .id = AR6003_HW_2_0_VERSION, + .name = "ar6003 hw 2.0", + .dataset_patch_addr = 0x57e884, + .app_load_addr = 0x543180, + .board_ext_data_addr = 0x57e500, + .reserved_ram_size = 6912, + .refclk_hz = 26000000, + .uarttx_pin = 8, + .flags = ATH6KL_HW_SDIO_CRC_ERROR_WAR, + + /* hw2.0 needs override address hardcoded */ + .app_start_override_addr = 0x944C00, + + .fw = { + .dir = AR6003_HW_2_0_FW_DIR, + .otp = AR6003_HW_2_0_OTP_FILE, + .fw = AR6003_HW_2_0_FIRMWARE_FILE, + .tcmd = AR6003_HW_2_0_TCMD_FIRMWARE_FILE, + .patch = AR6003_HW_2_0_PATCH_FILE, + }, + + .fw_board = AR6003_HW_2_0_BOARD_DATA_FILE, + .fw_default_board = AR6003_HW_2_0_DEFAULT_BOARD_DATA_FILE, + }, + { + .id = AR6003_HW_2_1_1_VERSION, + .name = "ar6003 hw 2.1.1", + .dataset_patch_addr = 0x57ff74, + .app_load_addr = 0x1234, + .board_ext_data_addr = 0x542330, + .reserved_ram_size = 512, + .refclk_hz = 26000000, + .uarttx_pin = 8, + .testscript_addr = 0x57ef74, + .flags = ATH6KL_HW_SDIO_CRC_ERROR_WAR, + + .fw = { + .dir = AR6003_HW_2_1_1_FW_DIR, + .otp = AR6003_HW_2_1_1_OTP_FILE, + .fw = AR6003_HW_2_1_1_FIRMWARE_FILE, + .tcmd = AR6003_HW_2_1_1_TCMD_FIRMWARE_FILE, + .patch = AR6003_HW_2_1_1_PATCH_FILE, + .utf = AR6003_HW_2_1_1_UTF_FIRMWARE_FILE, + .testscript = AR6003_HW_2_1_1_TESTSCRIPT_FILE, + }, + + .fw_board = AR6003_HW_2_1_1_BOARD_DATA_FILE, + .fw_default_board = AR6003_HW_2_1_1_DEFAULT_BOARD_DATA_FILE, + }, + { + .id = AR6004_HW_1_0_VERSION, + .name = "ar6004 hw 1.0", + .dataset_patch_addr = 0x57e884, + .app_load_addr = 0x1234, + .board_ext_data_addr = 0x437000, + .reserved_ram_size = 19456, + .board_addr = 0x433900, + .refclk_hz = 26000000, + .uarttx_pin = 11, + .flags = 0, + + .fw = { + .dir = AR6004_HW_1_0_FW_DIR, + .fw = AR6004_HW_1_0_FIRMWARE_FILE, + }, + + .fw_board = AR6004_HW_1_0_BOARD_DATA_FILE, + .fw_default_board = AR6004_HW_1_0_DEFAULT_BOARD_DATA_FILE, + }, + { + .id = AR6004_HW_1_1_VERSION, + .name = "ar6004 hw 1.1", + .dataset_patch_addr = 0x57e884, + .app_load_addr = 0x1234, + .board_ext_data_addr = 0x437000, + .reserved_ram_size = 11264, + .board_addr = 0x43d400, + .refclk_hz = 40000000, + .uarttx_pin = 11, + .flags = 0, + .fw = { + .dir = AR6004_HW_1_1_FW_DIR, + .fw = AR6004_HW_1_1_FIRMWARE_FILE, + }, + + .fw_board = AR6004_HW_1_1_BOARD_DATA_FILE, + .fw_default_board = AR6004_HW_1_1_DEFAULT_BOARD_DATA_FILE, + }, + { + .id = AR6004_HW_1_2_VERSION, + .name = "ar6004 hw 1.2", + .dataset_patch_addr = 0x436ecc, + .app_load_addr = 0x1234, + .board_ext_data_addr = 0x437000, + .reserved_ram_size = 9216, + .board_addr = 0x435c00, + .refclk_hz = 40000000, + .uarttx_pin = 11, + .flags = 0, + + .fw = { + .dir = AR6004_HW_1_2_FW_DIR, + .fw = AR6004_HW_1_2_FIRMWARE_FILE, + }, + .fw_board = AR6004_HW_1_2_BOARD_DATA_FILE, + .fw_default_board = AR6004_HW_1_2_DEFAULT_BOARD_DATA_FILE, + }, + { + .id = AR6004_HW_1_3_VERSION, + .name = "ar6004 hw 1.3", + .dataset_patch_addr = 0x437860, + .app_load_addr = 0x1234, + .board_ext_data_addr = 0x437000, + .reserved_ram_size = 7168, + .board_addr = 0x436400, + .refclk_hz = 0, + .uarttx_pin = 11, + .flags = 0, + + .fw = { + .dir = AR6004_HW_1_3_FW_DIR, + .fw = AR6004_HW_1_3_FIRMWARE_FILE, + .tcmd = AR6004_HW_1_3_TCMD_FIRMWARE_FILE, + .utf = AR6004_HW_1_3_UTF_FIRMWARE_FILE, + .testscript = AR6004_HW_1_3_TESTSCRIPT_FILE, + }, + + .fw_board = AR6004_HW_1_3_BOARD_DATA_FILE, + .fw_default_board = AR6004_HW_1_3_DEFAULT_BOARD_DATA_FILE, + }, + { + .id = AR6004_HW_3_0_VERSION, + .name = "ar6004 hw 3.0", + .dataset_patch_addr = 0, + .app_load_addr = 0x1234, + .board_ext_data_addr = 0, + .reserved_ram_size = 7168, + .board_addr = 0x436400, + .testscript_addr = 0, + .uarttx_pin = 11, + .flags = 0, + + .fw = { + .dir = AR6004_HW_3_0_FW_DIR, + .fw = AR6004_HW_3_0_FIRMWARE_FILE, + .tcmd = AR6004_HW_3_0_TCMD_FIRMWARE_FILE, + .utf = AR6004_HW_3_0_UTF_FIRMWARE_FILE, + .testscript = AR6004_HW_3_0_TESTSCRIPT_FILE, + }, + + .fw_board = AR6004_HW_3_0_BOARD_DATA_FILE, + .fw_default_board = AR6004_HW_3_0_DEFAULT_BOARD_DATA_FILE, + }, +}; + +/* + * Include definitions here that can be used to tune the WLAN module + * behavior. Different customers can tune the behavior as per their needs, + * here. + */ + +/* + * This configuration item enable/disable keepalive support. + * Keepalive support: In the absence of any data traffic to AP, null + * frames will be sent to the AP at periodic interval, to keep the association + * active. This configuration item defines the periodic interval. + * Use value of zero to disable keepalive support + * Default: 60 seconds + */ +#define WLAN_CONFIG_KEEP_ALIVE_INTERVAL 60 + +/* + * This configuration item sets the value of disconnect timeout + * Firmware delays sending the disconnec event to the host for this + * timeout after is gets disconnected from the current AP. + * If the firmware successly roams within the disconnect timeout + * it sends a new connect event + */ +#define WLAN_CONFIG_DISCONNECT_TIMEOUT 10 + + +#define ATH6KL_DATA_OFFSET 64 +struct sk_buff *ath6kl_buf_alloc(int size) +{ + struct sk_buff *skb; + u16 reserved; + + /* Add chacheline space at front and back of buffer */ + reserved = roundup((2 * L1_CACHE_BYTES) + ATH6KL_DATA_OFFSET + + sizeof(struct htc_packet) + ATH6KL_HTC_ALIGN_BYTES, 4); + skb = dev_alloc_skb(size + reserved); + + if (skb) + skb_reserve(skb, reserved - L1_CACHE_BYTES); + return skb; +} + +void ath6kl_init_profile_info(struct ath6kl_vif *vif) +{ + vif->ssid_len = 0; + memset(vif->ssid, 0, sizeof(vif->ssid)); + + vif->dot11_auth_mode = OPEN_AUTH; + vif->auth_mode = NONE_AUTH; + vif->prwise_crypto = NONE_CRYPT; + vif->prwise_crypto_len = 0; + vif->grp_crypto = NONE_CRYPT; + vif->grp_crypto_len = 0; + memset(vif->wep_key_list, 0, sizeof(vif->wep_key_list)); + memset(vif->req_bssid, 0, sizeof(vif->req_bssid)); + memset(vif->bssid, 0, sizeof(vif->bssid)); + vif->bss_ch = 0; +} + +static int ath6kl_set_host_app_area(struct ath6kl *ar) +{ + u32 address, data; + struct host_app_area host_app_area; + + /* Fetch the address of the host_app_area_s + * instance in the host interest area */ + address = ath6kl_get_hi_item_addr(ar, HI_ITEM(hi_app_host_interest)); + address = TARG_VTOP(ar->target_type, address); + + if (ath6kl_diag_read32(ar, address, &data)) + return -EIO; + + address = TARG_VTOP(ar->target_type, data); + host_app_area.wmi_protocol_ver = cpu_to_le32(WMI_PROTOCOL_VERSION); + if (ath6kl_diag_write(ar, address, (u8 *) &host_app_area, + sizeof(struct host_app_area))) + return -EIO; + + return 0; +} + +static inline void set_ac2_ep_map(struct ath6kl *ar, + u8 ac, + enum htc_endpoint_id ep) +{ + ar->ac2ep_map[ac] = ep; + ar->ep2ac_map[ep] = ac; +} + +/* connect to a service */ +static int ath6kl_connectservice(struct ath6kl *ar, + struct htc_service_connect_req *con_req, + char *desc) +{ + int status; + struct htc_service_connect_resp response; + + memset(&response, 0, sizeof(response)); + + status = ath6kl_htc_conn_service(ar->htc_target, con_req, &response); + if (status) { + ath6kl_err("failed to connect to %s service status:%d\n", + desc, status); + return status; + } + + switch (con_req->svc_id) { + case WMI_CONTROL_SVC: + if (test_bit(WMI_ENABLED, &ar->flag)) + ath6kl_wmi_set_control_ep(ar->wmi, response.endpoint); + ar->ctrl_ep = response.endpoint; + break; + case WMI_DATA_BE_SVC: + set_ac2_ep_map(ar, WMM_AC_BE, response.endpoint); + break; + case WMI_DATA_BK_SVC: + set_ac2_ep_map(ar, WMM_AC_BK, response.endpoint); + break; + case WMI_DATA_VI_SVC: + set_ac2_ep_map(ar, WMM_AC_VI, response.endpoint); + break; + case WMI_DATA_VO_SVC: + set_ac2_ep_map(ar, WMM_AC_VO, response.endpoint); + break; + default: + ath6kl_err("service id is not mapped %d\n", con_req->svc_id); + return -EINVAL; + } + + return 0; +} + +static int ath6kl_init_service_ep(struct ath6kl *ar) +{ + struct htc_service_connect_req connect; + + memset(&connect, 0, sizeof(connect)); + + /* these fields are the same for all service endpoints */ + connect.ep_cb.tx_comp_multi = ath6kl_tx_complete; + connect.ep_cb.rx = ath6kl_rx; + connect.ep_cb.rx_refill = ath6kl_rx_refill; + connect.ep_cb.tx_full = ath6kl_tx_queue_full; + + /* + * Set the max queue depth so that our ath6kl_tx_queue_full handler + * gets called. + */ + connect.max_txq_depth = MAX_DEFAULT_SEND_QUEUE_DEPTH; + connect.ep_cb.rx_refill_thresh = ATH6KL_MAX_RX_BUFFERS / 4; + if (!connect.ep_cb.rx_refill_thresh) + connect.ep_cb.rx_refill_thresh++; + + /* connect to control service */ + connect.svc_id = WMI_CONTROL_SVC; + if (ath6kl_connectservice(ar, &connect, "WMI CONTROL")) + return -EIO; + + connect.flags |= HTC_FLGS_TX_BNDL_PAD_EN; + + /* + * Limit the HTC message size on the send path, although e can + * receive A-MSDU frames of 4K, we will only send ethernet-sized + * (802.3) frames on the send path. + */ + connect.max_rxmsg_sz = WMI_MAX_TX_DATA_FRAME_LENGTH; + + /* + * To reduce the amount of committed memory for larger A_MSDU + * frames, use the recv-alloc threshold mechanism for larger + * packets. + */ + connect.ep_cb.rx_alloc_thresh = ATH6KL_BUFFER_SIZE; + connect.ep_cb.rx_allocthresh = ath6kl_alloc_amsdu_rxbuf; + + /* + * For the remaining data services set the connection flag to + * reduce dribbling, if configured to do so. + */ + connect.conn_flags |= HTC_CONN_FLGS_REDUCE_CRED_DRIB; + connect.conn_flags &= ~HTC_CONN_FLGS_THRESH_MASK; + connect.conn_flags |= HTC_CONN_FLGS_THRESH_LVL_HALF; + + connect.svc_id = WMI_DATA_BE_SVC; + + if (ath6kl_connectservice(ar, &connect, "WMI DATA BE")) + return -EIO; + + /* connect to back-ground map this to WMI LOW_PRI */ + connect.svc_id = WMI_DATA_BK_SVC; + if (ath6kl_connectservice(ar, &connect, "WMI DATA BK")) + return -EIO; + + /* connect to Video service, map this to HI PRI */ + connect.svc_id = WMI_DATA_VI_SVC; + if (ath6kl_connectservice(ar, &connect, "WMI DATA VI")) + return -EIO; + + /* + * Connect to VO service, this is currently not mapped to a WMI + * priority stream due to historical reasons. WMI originally + * defined 3 priorities over 3 mailboxes We can change this when + * WMI is reworked so that priorities are not dependent on + * mailboxes. + */ + connect.svc_id = WMI_DATA_VO_SVC; + if (ath6kl_connectservice(ar, &connect, "WMI DATA VO")) + return -EIO; + + return 0; +} + +void ath6kl_init_control_info(struct ath6kl_vif *vif) +{ + ath6kl_init_profile_info(vif); + vif->def_txkey_index = 0; + memset(vif->wep_key_list, 0, sizeof(vif->wep_key_list)); + vif->ch_hint = 0; +} + +/* + * Set HTC/Mbox operational parameters, this can only be called when the + * target is in the BMI phase. + */ +static int ath6kl_set_htc_params(struct ath6kl *ar, u32 mbox_isr_yield_val, + u8 htc_ctrl_buf) +{ + int status; + u32 blk_size; + + blk_size = ar->mbox_info.block_size; + + if (htc_ctrl_buf) + blk_size |= ((u32)htc_ctrl_buf) << 16; + + /* set the host interest area for the block size */ + status = ath6kl_bmi_write_hi32(ar, hi_mbox_io_block_sz, blk_size); + if (status) { + ath6kl_err("bmi_write_memory for IO block size failed\n"); + goto out; + } + + ath6kl_dbg(ATH6KL_DBG_TRC, "block size set: %d (target addr:0x%X)\n", + blk_size, + ath6kl_get_hi_item_addr(ar, HI_ITEM(hi_mbox_io_block_sz))); + + if (mbox_isr_yield_val) { + /* set the host interest area for the mbox ISR yield limit */ + status = ath6kl_bmi_write_hi32(ar, hi_mbox_isr_yield_limit, + mbox_isr_yield_val); + if (status) { + ath6kl_err("bmi_write_memory for yield limit failed\n"); + goto out; + } + } + +out: + return status; +} + +static int ath6kl_target_config_wlan_params(struct ath6kl *ar, int idx) +{ + int ret; + + /* + * Configure the device for rx dot11 header rules. "0,0" are the + * default values. Required if checksum offload is needed. Set + * RxMetaVersion to 2. + */ + ret = ath6kl_wmi_set_rx_frame_format_cmd(ar->wmi, idx, + ar->rx_meta_ver, 0, 0); + if (ret) { + ath6kl_err("unable to set the rx frame format: %d\n", ret); + return ret; + } + + if (ar->conf_flags & ATH6KL_CONF_IGNORE_PS_FAIL_EVT_IN_SCAN) { + ret = ath6kl_wmi_pmparams_cmd(ar->wmi, idx, 0, 1, 0, 0, 1, + IGNORE_PS_FAIL_DURING_SCAN); + if (ret) { + ath6kl_err("unable to set power save fail event policy: %d\n", + ret); + return ret; + } + } + + if (!(ar->conf_flags & ATH6KL_CONF_IGNORE_ERP_BARKER)) { + ret = ath6kl_wmi_set_lpreamble_cmd(ar->wmi, idx, 0, + WMI_FOLLOW_BARKER_IN_ERP); + if (ret) { + ath6kl_err("unable to set barker preamble policy: %d\n", + ret); + return ret; + } + } + + ret = ath6kl_wmi_set_keepalive_cmd(ar->wmi, idx, + WLAN_CONFIG_KEEP_ALIVE_INTERVAL); + if (ret) { + ath6kl_err("unable to set keep alive interval: %d\n", ret); + return ret; + } + + ret = ath6kl_wmi_disctimeout_cmd(ar->wmi, idx, + WLAN_CONFIG_DISCONNECT_TIMEOUT); + if (ret) { + ath6kl_err("unable to set disconnect timeout: %d\n", ret); + return ret; + } + + if (!(ar->conf_flags & ATH6KL_CONF_ENABLE_TX_BURST)) { + ret = ath6kl_wmi_set_wmm_txop(ar->wmi, idx, WMI_TXOP_DISABLED); + if (ret) { + ath6kl_err("unable to set txop bursting: %d\n", ret); + return ret; + } + } + + if (ar->p2p && (ar->vif_max == 1 || idx)) { + ret = ath6kl_wmi_info_req_cmd(ar->wmi, idx, + P2P_FLAG_CAPABILITIES_REQ | + P2P_FLAG_MACADDR_REQ | + P2P_FLAG_HMODEL_REQ); + if (ret) { + ath6kl_dbg(ATH6KL_DBG_TRC, + "failed to request P2P capabilities (%d) - assuming P2P not supported\n", + ret); + ar->p2p = false; + } + } + + if (ar->p2p && (ar->vif_max == 1 || idx)) { + /* Enable Probe Request reporting for P2P */ + ret = ath6kl_wmi_probe_report_req_cmd(ar->wmi, idx, true); + if (ret) { + ath6kl_dbg(ATH6KL_DBG_TRC, + "failed to enable Probe Request reporting (%d)\n", + ret); + } + } + + return ret; +} + +int ath6kl_configure_target(struct ath6kl *ar) +{ + u32 param, ram_reserved_size; + u8 fw_iftype, fw_mode = 0, fw_submode = 0; + int i, status; + + param = !!(ar->conf_flags & ATH6KL_CONF_UART_DEBUG); + if (ath6kl_bmi_write_hi32(ar, hi_serial_enable, param)) { + ath6kl_err("bmi_write_memory for uart debug failed\n"); + return -EIO; + } + + /* + * Note: Even though the firmware interface type is + * chosen as BSS_STA for all three interfaces, can + * be configured to IBSS/AP as long as the fw submode + * remains normal mode (0 - AP, STA and IBSS). But + * due to an target assert in firmware only one interface is + * configured for now. + */ + fw_iftype = HI_OPTION_FW_MODE_BSS_STA; + + for (i = 0; i < ar->vif_max; i++) + fw_mode |= fw_iftype << (i * HI_OPTION_FW_MODE_BITS); + + /* + * Submodes when fw does not support dynamic interface + * switching: + * vif[0] - AP/STA/IBSS + * vif[1] - "P2P dev"/"P2P GO"/"P2P Client" + * vif[2] - "P2P dev"/"P2P GO"/"P2P Client" + * Otherwise, All the interface are initialized to p2p dev. + */ + + if (test_bit(ATH6KL_FW_CAPABILITY_STA_P2PDEV_DUPLEX, + ar->fw_capabilities)) { + for (i = 0; i < ar->vif_max; i++) + fw_submode |= HI_OPTION_FW_SUBMODE_P2PDEV << + (i * HI_OPTION_FW_SUBMODE_BITS); + } else { + for (i = 0; i < ar->max_norm_iface; i++) + fw_submode |= HI_OPTION_FW_SUBMODE_NONE << + (i * HI_OPTION_FW_SUBMODE_BITS); + + for (i = ar->max_norm_iface; i < ar->vif_max; i++) + fw_submode |= HI_OPTION_FW_SUBMODE_P2PDEV << + (i * HI_OPTION_FW_SUBMODE_BITS); + + if (ar->p2p && ar->vif_max == 1) + fw_submode = HI_OPTION_FW_SUBMODE_P2PDEV; + } + + if (ath6kl_bmi_write_hi32(ar, hi_app_host_interest, + HTC_PROTOCOL_VERSION) != 0) { + ath6kl_err("bmi_write_memory for htc version failed\n"); + return -EIO; + } + + /* set the firmware mode to STA/IBSS/AP */ + param = 0; + + if (ath6kl_bmi_read_hi32(ar, hi_option_flag, ¶m) != 0) { + ath6kl_err("bmi_read_memory for setting fwmode failed\n"); + return -EIO; + } + + param |= (ar->vif_max << HI_OPTION_NUM_DEV_SHIFT); + param |= fw_mode << HI_OPTION_FW_MODE_SHIFT; + param |= fw_submode << HI_OPTION_FW_SUBMODE_SHIFT; + + param |= (0 << HI_OPTION_MAC_ADDR_METHOD_SHIFT); + param |= (0 << HI_OPTION_FW_BRIDGE_SHIFT); + + if (ath6kl_bmi_write_hi32(ar, hi_option_flag, param) != 0) { + ath6kl_err("bmi_write_memory for setting fwmode failed\n"); + return -EIO; + } + + ath6kl_dbg(ATH6KL_DBG_TRC, "firmware mode set\n"); + + /* + * Hardcode the address use for the extended board data + * Ideally this should be pre-allocate by the OS at boot time + * But since it is a new feature and board data is loaded + * at init time, we have to workaround this from host. + * It is difficult to patch the firmware boot code, + * but possible in theory. + */ + + if ((ar->target_type == TARGET_TYPE_AR6003) || + (ar->version.target_ver == AR6004_HW_1_3_VERSION) || + (ar->version.target_ver == AR6004_HW_3_0_VERSION)) { + param = ar->hw.board_ext_data_addr; + ram_reserved_size = ar->hw.reserved_ram_size; + + if (ath6kl_bmi_write_hi32(ar, hi_board_ext_data, param) != 0) { + ath6kl_err("bmi_write_memory for hi_board_ext_data failed\n"); + return -EIO; + } + + if (ath6kl_bmi_write_hi32(ar, hi_end_ram_reserve_sz, + ram_reserved_size) != 0) { + ath6kl_err("bmi_write_memory for hi_end_ram_reserve_sz failed\n"); + return -EIO; + } + } + + /* set the block size for the target */ + if (ath6kl_set_htc_params(ar, MBOX_YIELD_LIMIT, 0)) + /* use default number of control buffers */ + return -EIO; + + /* Configure GPIO AR600x UART */ + status = ath6kl_bmi_write_hi32(ar, hi_dbg_uart_txpin, + ar->hw.uarttx_pin); + if (status) + return status; + + /* Only set the baud rate if we're actually doing debug */ + if (ar->conf_flags & ATH6KL_CONF_UART_DEBUG) { + status = ath6kl_bmi_write_hi32(ar, hi_desired_baud_rate, + ar->hw.uarttx_rate); + if (status) + return status; + } + + /* Configure target refclk_hz */ + if (ar->hw.refclk_hz != 0) { + status = ath6kl_bmi_write_hi32(ar, hi_refclk_hz, + ar->hw.refclk_hz); + if (status) + return status; + } + + return 0; +} + +/* firmware upload */ +static int ath6kl_get_fw(struct ath6kl *ar, const char *filename, + u8 **fw, size_t *fw_len) +{ + const struct firmware *fw_entry; + int ret; + + ret = request_firmware(&fw_entry, filename, ar->dev); + if (ret) + return ret; + + *fw_len = fw_entry->size; + *fw = kmemdup(fw_entry->data, fw_entry->size, GFP_KERNEL); + + if (*fw == NULL) + ret = -ENOMEM; + + release_firmware(fw_entry); + + return ret; +} + +#ifdef CONFIG_OF +/* + * Check the device tree for a board-id and use it to construct + * the pathname to the firmware file. Used (for now) to find a + * fallback to the "bdata.bin" file--typically a symlink to the + * appropriate board-specific file. + */ +static bool check_device_tree(struct ath6kl *ar) +{ + static const char *board_id_prop = "atheros,board-id"; + struct device_node *node; + char board_filename[64]; + const char *board_id; + int ret; + + for_each_compatible_node(node, NULL, "atheros,ath6kl") { + board_id = of_get_property(node, board_id_prop, NULL); + if (board_id == NULL) { + ath6kl_warn("No \"%s\" property on %s node.\n", + board_id_prop, node->name); + continue; + } + snprintf(board_filename, sizeof(board_filename), + "%s/bdata.%s.bin", ar->hw.fw.dir, board_id); + + ret = ath6kl_get_fw(ar, board_filename, &ar->fw_board, + &ar->fw_board_len); + if (ret) { + ath6kl_err("Failed to get DT board file %s: %d\n", + board_filename, ret); + continue; + } + of_node_put(node); + return true; + } + return false; +} +#else +static bool check_device_tree(struct ath6kl *ar) +{ + return false; +} +#endif /* CONFIG_OF */ + +static int ath6kl_fetch_board_file(struct ath6kl *ar) +{ + const char *filename; + int ret; + + if (ar->fw_board != NULL) + return 0; + + if (WARN_ON(ar->hw.fw_board == NULL)) + return -EINVAL; + + filename = ar->hw.fw_board; + + ret = ath6kl_get_fw(ar, filename, &ar->fw_board, + &ar->fw_board_len); + if (ret == 0) { + /* managed to get proper board file */ + return 0; + } + + if (check_device_tree(ar)) { + /* got board file from device tree */ + return 0; + } + + /* there was no proper board file, try to use default instead */ + ath6kl_warn("Failed to get board file %s (%d), trying to find default board file.\n", + filename, ret); + + filename = ar->hw.fw_default_board; + + ret = ath6kl_get_fw(ar, filename, &ar->fw_board, + &ar->fw_board_len); + if (ret) { + ath6kl_err("Failed to get default board file %s: %d\n", + filename, ret); + return ret; + } + + ath6kl_warn("WARNING! No proper board file was not found, instead using a default board file.\n"); + ath6kl_warn("Most likely your hardware won't work as specified. Install correct board file!\n"); + + return 0; +} + +static int ath6kl_fetch_otp_file(struct ath6kl *ar) +{ + char filename[100]; + int ret; + + if (ar->fw_otp != NULL) + return 0; + + if (ar->hw.fw.otp == NULL) { + ath6kl_dbg(ATH6KL_DBG_BOOT, + "no OTP file configured for this hw\n"); + return 0; + } + + snprintf(filename, sizeof(filename), "%s/%s", + ar->hw.fw.dir, ar->hw.fw.otp); + + ret = ath6kl_get_fw(ar, filename, &ar->fw_otp, + &ar->fw_otp_len); + if (ret) { + ath6kl_err("Failed to get OTP file %s: %d\n", + filename, ret); + return ret; + } + + return 0; +} + +static int ath6kl_fetch_testmode_file(struct ath6kl *ar) +{ + char filename[100]; + int ret; + + if (ar->testmode == 0) + return 0; + + ath6kl_dbg(ATH6KL_DBG_BOOT, "testmode %d\n", ar->testmode); + + if (ar->testmode == 2) { + if (ar->hw.fw.utf == NULL) { + ath6kl_warn("testmode 2 not supported\n"); + return -EOPNOTSUPP; + } + + snprintf(filename, sizeof(filename), "%s/%s", + ar->hw.fw.dir, ar->hw.fw.utf); + } else { + if (ar->hw.fw.tcmd == NULL) { + ath6kl_warn("testmode 1 not supported\n"); + return -EOPNOTSUPP; + } + + snprintf(filename, sizeof(filename), "%s/%s", + ar->hw.fw.dir, ar->hw.fw.tcmd); + } + + set_bit(TESTMODE, &ar->flag); + + ret = ath6kl_get_fw(ar, filename, &ar->fw, &ar->fw_len); + if (ret) { + ath6kl_err("Failed to get testmode %d firmware file %s: %d\n", + ar->testmode, filename, ret); + return ret; + } + + return 0; +} + +static int ath6kl_fetch_fw_file(struct ath6kl *ar) +{ + char filename[100]; + int ret; + + if (ar->fw != NULL) + return 0; + + /* FIXME: remove WARN_ON() as we won't support FW API 1 for long */ + if (WARN_ON(ar->hw.fw.fw == NULL)) + return -EINVAL; + + snprintf(filename, sizeof(filename), "%s/%s", + ar->hw.fw.dir, ar->hw.fw.fw); + + ret = ath6kl_get_fw(ar, filename, &ar->fw, &ar->fw_len); + if (ret) { + ath6kl_err("Failed to get firmware file %s: %d\n", + filename, ret); + return ret; + } + + return 0; +} + +static int ath6kl_fetch_patch_file(struct ath6kl *ar) +{ + char filename[100]; + int ret; + + if (ar->fw_patch != NULL) + return 0; + + if (ar->hw.fw.patch == NULL) + return 0; + + snprintf(filename, sizeof(filename), "%s/%s", + ar->hw.fw.dir, ar->hw.fw.patch); + + ret = ath6kl_get_fw(ar, filename, &ar->fw_patch, + &ar->fw_patch_len); + if (ret) { + ath6kl_err("Failed to get patch file %s: %d\n", + filename, ret); + return ret; + } + + return 0; +} + +static int ath6kl_fetch_testscript_file(struct ath6kl *ar) +{ + char filename[100]; + int ret; + + if (ar->testmode != 2) + return 0; + + if (ar->fw_testscript != NULL) + return 0; + + if (ar->hw.fw.testscript == NULL) + return 0; + + snprintf(filename, sizeof(filename), "%s/%s", + ar->hw.fw.dir, ar->hw.fw.testscript); + + ret = ath6kl_get_fw(ar, filename, &ar->fw_testscript, + &ar->fw_testscript_len); + if (ret) { + ath6kl_err("Failed to get testscript file %s: %d\n", + filename, ret); + return ret; + } + + return 0; +} + +static int ath6kl_fetch_fw_api1(struct ath6kl *ar) +{ + int ret; + + ret = ath6kl_fetch_otp_file(ar); + if (ret) + return ret; + + ret = ath6kl_fetch_fw_file(ar); + if (ret) + return ret; + + ret = ath6kl_fetch_patch_file(ar); + if (ret) + return ret; + + ret = ath6kl_fetch_testscript_file(ar); + if (ret) + return ret; + + return 0; +} + +static int ath6kl_fetch_fw_apin(struct ath6kl *ar, const char *name) +{ + size_t magic_len, len, ie_len; + const struct firmware *fw; + struct ath6kl_fw_ie *hdr; + char filename[100]; + const u8 *data; + int ret, ie_id, i, index, bit; + __le32 *val; + + snprintf(filename, sizeof(filename), "%s/%s", ar->hw.fw.dir, name); + + ret = request_firmware(&fw, filename, ar->dev); + if (ret) { + ath6kl_err("Failed request firmware, rv: %d\n", ret); + return ret; + } + + data = fw->data; + len = fw->size; + + /* magic also includes the null byte, check that as well */ + magic_len = strlen(ATH6KL_FIRMWARE_MAGIC) + 1; + + if (len < magic_len) { + ath6kl_err("Magic length is invalid, len: %zd magic_len: %zd\n", + len, magic_len); + ret = -EINVAL; + goto out; + } + + if (memcmp(data, ATH6KL_FIRMWARE_MAGIC, magic_len) != 0) { + ath6kl_err("Magic is invalid, magic_len: %zd\n", + magic_len); + ret = -EINVAL; + goto out; + } + + len -= magic_len; + data += magic_len; + + /* loop elements */ + while (len > sizeof(struct ath6kl_fw_ie)) { + /* hdr is unaligned! */ + hdr = (struct ath6kl_fw_ie *) data; + + ie_id = le32_to_cpup(&hdr->id); + ie_len = le32_to_cpup(&hdr->len); + + len -= sizeof(*hdr); + data += sizeof(*hdr); + + ath6kl_dbg(ATH6KL_DBG_BOOT, "ie-id: %d len: %zd (0x%zx)\n", + ie_id, ie_len, ie_len); + + if (len < ie_len) { + ath6kl_err("IE len is invalid, len: %zd ie_len: %zd ie-id: %d\n", + len, ie_len, ie_id); + ret = -EINVAL; + goto out; + } + + switch (ie_id) { + case ATH6KL_FW_IE_FW_VERSION: + strlcpy(ar->wiphy->fw_version, data, + min(sizeof(ar->wiphy->fw_version), ie_len+1)); + + ath6kl_dbg(ATH6KL_DBG_BOOT, + "found fw version %s\n", + ar->wiphy->fw_version); + break; + case ATH6KL_FW_IE_OTP_IMAGE: + ath6kl_dbg(ATH6KL_DBG_BOOT, "found otp image ie (%zd B)\n", + ie_len); + + ar->fw_otp = kmemdup(data, ie_len, GFP_KERNEL); + + if (ar->fw_otp == NULL) { + ath6kl_err("fw_otp cannot be allocated\n"); + ret = -ENOMEM; + goto out; + } + + ar->fw_otp_len = ie_len; + break; + case ATH6KL_FW_IE_FW_IMAGE: + ath6kl_dbg(ATH6KL_DBG_BOOT, "found fw image ie (%zd B)\n", + ie_len); + + /* in testmode we already might have a fw file */ + if (ar->fw != NULL) + break; + + ar->fw = vmalloc(ie_len); + + if (ar->fw == NULL) { + ath6kl_err("fw storage cannot be allocated, len: %zd\n", ie_len); + ret = -ENOMEM; + goto out; + } + + memcpy(ar->fw, data, ie_len); + ar->fw_len = ie_len; + break; + case ATH6KL_FW_IE_PATCH_IMAGE: + ath6kl_dbg(ATH6KL_DBG_BOOT, "found patch image ie (%zd B)\n", + ie_len); + + ar->fw_patch = kmemdup(data, ie_len, GFP_KERNEL); + + if (ar->fw_patch == NULL) { + ath6kl_err("fw_patch storage cannot be allocated, len: %zd\n", ie_len); + ret = -ENOMEM; + goto out; + } + + ar->fw_patch_len = ie_len; + break; + case ATH6KL_FW_IE_RESERVED_RAM_SIZE: + val = (__le32 *) data; + ar->hw.reserved_ram_size = le32_to_cpup(val); + + ath6kl_dbg(ATH6KL_DBG_BOOT, + "found reserved ram size ie %d\n", + ar->hw.reserved_ram_size); + break; + case ATH6KL_FW_IE_CAPABILITIES: + ath6kl_dbg(ATH6KL_DBG_BOOT, + "found firmware capabilities ie (%zd B)\n", + ie_len); + + for (i = 0; i < ATH6KL_FW_CAPABILITY_MAX; i++) { + index = i / 8; + bit = i % 8; + + if (index == ie_len) + break; + + if (data[index] & (1 << bit)) + __set_bit(i, ar->fw_capabilities); + } + + ath6kl_dbg_dump(ATH6KL_DBG_BOOT, "capabilities", "", + ar->fw_capabilities, + sizeof(ar->fw_capabilities)); + break; + case ATH6KL_FW_IE_PATCH_ADDR: + if (ie_len != sizeof(*val)) + break; + + val = (__le32 *) data; + ar->hw.dataset_patch_addr = le32_to_cpup(val); + + ath6kl_dbg(ATH6KL_DBG_BOOT, + "found patch address ie 0x%x\n", + ar->hw.dataset_patch_addr); + break; + case ATH6KL_FW_IE_BOARD_ADDR: + if (ie_len != sizeof(*val)) + break; + + val = (__le32 *) data; + ar->hw.board_addr = le32_to_cpup(val); + + ath6kl_dbg(ATH6KL_DBG_BOOT, + "found board address ie 0x%x\n", + ar->hw.board_addr); + break; + case ATH6KL_FW_IE_VIF_MAX: + if (ie_len != sizeof(*val)) + break; + + val = (__le32 *) data; + ar->vif_max = min_t(unsigned int, le32_to_cpup(val), + ATH6KL_VIF_MAX); + + if (ar->vif_max > 1 && !ar->p2p) + ar->max_norm_iface = 2; + + ath6kl_dbg(ATH6KL_DBG_BOOT, + "found vif max ie %d\n", ar->vif_max); + break; + default: + ath6kl_dbg(ATH6KL_DBG_BOOT, "Unknown fw ie: %u\n", + le32_to_cpup(&hdr->id)); + break; + } + + len -= ie_len; + data += ie_len; + }; + + ret = 0; +out: + release_firmware(fw); + + return ret; +} + +int ath6kl_init_fetch_firmwares(struct ath6kl *ar) +{ + int ret; + + ret = ath6kl_fetch_board_file(ar); + if (ret) + return ret; + + ret = ath6kl_fetch_testmode_file(ar); + if (ret) + return ret; + + ret = ath6kl_fetch_fw_apin(ar, ATH6KL_FW_API5_FILE); + if (ret == 0) { + ar->fw_api = 5; + goto out; + } + + ret = ath6kl_fetch_fw_apin(ar, ATH6KL_FW_API4_FILE); + if (ret == 0) { + ar->fw_api = 4; + goto out; + } + + ret = ath6kl_fetch_fw_apin(ar, ATH6KL_FW_API3_FILE); + if (ret == 0) { + ar->fw_api = 3; + goto out; + } + + ret = ath6kl_fetch_fw_apin(ar, ATH6KL_FW_API2_FILE); + if (ret == 0) { + ar->fw_api = 2; + goto out; + } + + ret = ath6kl_fetch_fw_api1(ar); + if (ret) + return ret; + + ar->fw_api = 1; + +out: + ath6kl_dbg(ATH6KL_DBG_BOOT, "using fw api %d\n", ar->fw_api); + + return 0; +} + +static int ath6kl_upload_board_file(struct ath6kl *ar) +{ + u32 board_address, board_ext_address, param; + u32 board_data_size, board_ext_data_size; + int ret; + + if (WARN_ON(ar->fw_board == NULL)) + return -ENOENT; + + /* + * Determine where in Target RAM to write Board Data. + * For AR6004, host determine Target RAM address for + * writing board data. + */ + if (ar->hw.board_addr != 0) { + board_address = ar->hw.board_addr; + ath6kl_bmi_write_hi32(ar, hi_board_data, + board_address); + } else { + ret = ath6kl_bmi_read_hi32(ar, hi_board_data, &board_address); + if (ret) { + ath6kl_err("Failed to get board file target address.\n"); + return ret; + } + } + + /* determine where in target ram to write extended board data */ + ret = ath6kl_bmi_read_hi32(ar, hi_board_ext_data, &board_ext_address); + if (ret) { + ath6kl_err("Failed to get extended board file target address.\n"); + return ret; + } + + if (ar->target_type == TARGET_TYPE_AR6003 && + board_ext_address == 0) { + ath6kl_err("Failed to get board file target address.\n"); + return -EINVAL; + } + + switch (ar->target_type) { + case TARGET_TYPE_AR6003: + board_data_size = AR6003_BOARD_DATA_SZ; + board_ext_data_size = AR6003_BOARD_EXT_DATA_SZ; + if (ar->fw_board_len > (board_data_size + board_ext_data_size)) + board_ext_data_size = AR6003_BOARD_EXT_DATA_SZ_V2; + break; + case TARGET_TYPE_AR6004: + board_data_size = AR6004_BOARD_DATA_SZ; + board_ext_data_size = AR6004_BOARD_EXT_DATA_SZ; + break; + default: + WARN_ON(1); + return -EINVAL; + } + + if (board_ext_address && + ar->fw_board_len == (board_data_size + board_ext_data_size)) { + /* write extended board data */ + ath6kl_dbg(ATH6KL_DBG_BOOT, + "writing extended board data to 0x%x (%d B)\n", + board_ext_address, board_ext_data_size); + + ret = ath6kl_bmi_write(ar, board_ext_address, + ar->fw_board + board_data_size, + board_ext_data_size); + if (ret) { + ath6kl_err("Failed to write extended board data: %d\n", + ret); + return ret; + } + + /* record that extended board data is initialized */ + param = (board_ext_data_size << 16) | 1; + + ath6kl_bmi_write_hi32(ar, hi_board_ext_data_config, param); + } + + if (ar->fw_board_len < board_data_size) { + ath6kl_err("Too small board file: %zu\n", ar->fw_board_len); + ret = -EINVAL; + return ret; + } + + ath6kl_dbg(ATH6KL_DBG_BOOT, "writing board file to 0x%x (%d B)\n", + board_address, board_data_size); + + ret = ath6kl_bmi_write(ar, board_address, ar->fw_board, + board_data_size); + + if (ret) { + ath6kl_err("Board file bmi write failed: %d\n", ret); + return ret; + } + + /* record the fact that Board Data IS initialized */ + if ((ar->version.target_ver == AR6004_HW_1_3_VERSION) || + (ar->version.target_ver == AR6004_HW_3_0_VERSION)) + param = board_data_size; + else + param = 1; + + ath6kl_bmi_write_hi32(ar, hi_board_data_initialized, param); + + return ret; +} + +static int ath6kl_upload_otp(struct ath6kl *ar) +{ + u32 address, param; + bool from_hw = false; + int ret; + + if (ar->fw_otp == NULL) + return 0; + + address = ar->hw.app_load_addr; + + ath6kl_dbg(ATH6KL_DBG_BOOT, "writing otp to 0x%x (%zd B)\n", address, + ar->fw_otp_len); + + ret = ath6kl_bmi_fast_download(ar, address, ar->fw_otp, + ar->fw_otp_len); + if (ret) { + ath6kl_err("Failed to upload OTP file: %d\n", ret); + return ret; + } + + /* read firmware start address */ + ret = ath6kl_bmi_read_hi32(ar, hi_app_start, &address); + + if (ret) { + ath6kl_err("Failed to read hi_app_start: %d\n", ret); + return ret; + } + + if (ar->hw.app_start_override_addr == 0) { + ar->hw.app_start_override_addr = address; + from_hw = true; + } + + ath6kl_dbg(ATH6KL_DBG_BOOT, "app_start_override_addr%s 0x%x\n", + from_hw ? " (from hw)" : "", + ar->hw.app_start_override_addr); + + /* execute the OTP code */ + ath6kl_dbg(ATH6KL_DBG_BOOT, "executing OTP at 0x%x\n", + ar->hw.app_start_override_addr); + param = 0; + ath6kl_bmi_execute(ar, ar->hw.app_start_override_addr, ¶m); + + return ret; +} + +static int ath6kl_upload_firmware(struct ath6kl *ar) +{ + u32 address; + int ret; + + if (WARN_ON(ar->fw == NULL)) + return 0; + + address = ar->hw.app_load_addr; + + ath6kl_dbg(ATH6KL_DBG_BOOT, "writing firmware to 0x%x (%zd B)\n", + address, ar->fw_len); + + ret = ath6kl_bmi_fast_download(ar, address, ar->fw, ar->fw_len); + + if (ret) { + ath6kl_err("Failed to write firmware: %d\n", ret); + return ret; + } + + /* + * Set starting address for firmware + * Don't need to setup app_start override addr on AR6004 + */ + if (ar->target_type != TARGET_TYPE_AR6004) { + address = ar->hw.app_start_override_addr; + ath6kl_bmi_set_app_start(ar, address); + } + return ret; +} + +static int ath6kl_upload_patch(struct ath6kl *ar) +{ + u32 address; + int ret; + + if (ar->fw_patch == NULL) + return 0; + + address = ar->hw.dataset_patch_addr; + + ath6kl_dbg(ATH6KL_DBG_BOOT, "writing patch to 0x%x (%zd B)\n", + address, ar->fw_patch_len); + + ret = ath6kl_bmi_write(ar, address, ar->fw_patch, ar->fw_patch_len); + if (ret) { + ath6kl_err("Failed to write patch file: %d\n", ret); + return ret; + } + + ath6kl_bmi_write_hi32(ar, hi_dset_list_head, address); + + return 0; +} + +static int ath6kl_upload_testscript(struct ath6kl *ar) +{ + u32 address; + int ret; + + if (ar->testmode != 2) + return 0; + + if (ar->fw_testscript == NULL) + return 0; + + address = ar->hw.testscript_addr; + + ath6kl_dbg(ATH6KL_DBG_BOOT, "writing testscript to 0x%x (%zd B)\n", + address, ar->fw_testscript_len); + + ret = ath6kl_bmi_write(ar, address, ar->fw_testscript, + ar->fw_testscript_len); + if (ret) { + ath6kl_err("Failed to write testscript file: %d\n", ret); + return ret; + } + + ath6kl_bmi_write_hi32(ar, hi_ota_testscript, address); + + if ((ar->version.target_ver != AR6004_HW_1_3_VERSION) && + (ar->version.target_ver != AR6004_HW_3_0_VERSION)) + ath6kl_bmi_write_hi32(ar, hi_end_ram_reserve_sz, 4096); + + ath6kl_bmi_write_hi32(ar, hi_test_apps_related, 1); + + return 0; +} + +static int ath6kl_init_upload(struct ath6kl *ar) +{ + u32 param, options, sleep, address; + int status = 0; + + if (ar->target_type != TARGET_TYPE_AR6003 && + ar->target_type != TARGET_TYPE_AR6004) + return -EINVAL; + + /* temporarily disable system sleep */ + address = MBOX_BASE_ADDRESS + LOCAL_SCRATCH_ADDRESS; + status = ath6kl_bmi_reg_read(ar, address, ¶m); + if (status) + return status; + + options = param; + + param |= ATH6KL_OPTION_SLEEP_DISABLE; + status = ath6kl_bmi_reg_write(ar, address, param); + if (status) + return status; + + address = RTC_BASE_ADDRESS + SYSTEM_SLEEP_ADDRESS; + status = ath6kl_bmi_reg_read(ar, address, ¶m); + if (status) + return status; + + sleep = param; + + param |= SM(SYSTEM_SLEEP_DISABLE, 1); + status = ath6kl_bmi_reg_write(ar, address, param); + if (status) + return status; + + ath6kl_dbg(ATH6KL_DBG_TRC, "old options: %d, old sleep: %d\n", + options, sleep); + + /* program analog PLL register */ + /* no need to control 40/44MHz clock on AR6004 */ + if (ar->target_type != TARGET_TYPE_AR6004) { + status = ath6kl_bmi_reg_write(ar, ATH6KL_ANALOG_PLL_REGISTER, + 0xF9104001); + + if (status) + return status; + + /* Run at 80/88MHz by default */ + param = SM(CPU_CLOCK_STANDARD, 1); + + address = RTC_BASE_ADDRESS + CPU_CLOCK_ADDRESS; + status = ath6kl_bmi_reg_write(ar, address, param); + if (status) + return status; + } + + param = 0; + address = RTC_BASE_ADDRESS + LPO_CAL_ADDRESS; + param = SM(LPO_CAL_ENABLE, 1); + status = ath6kl_bmi_reg_write(ar, address, param); + if (status) + return status; + + /* WAR to avoid SDIO CRC err */ + if (ar->hw.flags & ATH6KL_HW_SDIO_CRC_ERROR_WAR) { + ath6kl_err("temporary war to avoid sdio crc error\n"); + + param = 0x28; + address = GPIO_BASE_ADDRESS + GPIO_PIN9_ADDRESS; + status = ath6kl_bmi_reg_write(ar, address, param); + if (status) + return status; + + param = 0x20; + + address = GPIO_BASE_ADDRESS + GPIO_PIN10_ADDRESS; + status = ath6kl_bmi_reg_write(ar, address, param); + if (status) + return status; + + address = GPIO_BASE_ADDRESS + GPIO_PIN11_ADDRESS; + status = ath6kl_bmi_reg_write(ar, address, param); + if (status) + return status; + + address = GPIO_BASE_ADDRESS + GPIO_PIN12_ADDRESS; + status = ath6kl_bmi_reg_write(ar, address, param); + if (status) + return status; + + address = GPIO_BASE_ADDRESS + GPIO_PIN13_ADDRESS; + status = ath6kl_bmi_reg_write(ar, address, param); + if (status) + return status; + } + + /* write EEPROM data to Target RAM */ + status = ath6kl_upload_board_file(ar); + if (status) + return status; + + /* transfer One time Programmable data */ + status = ath6kl_upload_otp(ar); + if (status) + return status; + + /* Download Target firmware */ + status = ath6kl_upload_firmware(ar); + if (status) + return status; + + status = ath6kl_upload_patch(ar); + if (status) + return status; + + /* Download the test script */ + status = ath6kl_upload_testscript(ar); + if (status) + return status; + + /* Restore system sleep */ + address = RTC_BASE_ADDRESS + SYSTEM_SLEEP_ADDRESS; + status = ath6kl_bmi_reg_write(ar, address, sleep); + if (status) + return status; + + address = MBOX_BASE_ADDRESS + LOCAL_SCRATCH_ADDRESS; + param = options | 0x20; + status = ath6kl_bmi_reg_write(ar, address, param); + if (status) + return status; + + return status; +} + +int ath6kl_init_hw_params(struct ath6kl *ar) +{ + const struct ath6kl_hw *uninitialized_var(hw); + int i; + + for (i = 0; i < ARRAY_SIZE(hw_list); i++) { + hw = &hw_list[i]; + + if (hw->id == ar->version.target_ver) + break; + } + + if (i == ARRAY_SIZE(hw_list)) { + ath6kl_err("Unsupported hardware version: 0x%x\n", + ar->version.target_ver); + return -EINVAL; + } + + ar->hw = *hw; + + ath6kl_dbg(ATH6KL_DBG_BOOT, + "target_ver 0x%x target_type 0x%x dataset_patch 0x%x app_load_addr 0x%x\n", + ar->version.target_ver, ar->target_type, + ar->hw.dataset_patch_addr, ar->hw.app_load_addr); + ath6kl_dbg(ATH6KL_DBG_BOOT, + "app_start_override_addr 0x%x board_ext_data_addr 0x%x reserved_ram_size 0x%x", + ar->hw.app_start_override_addr, ar->hw.board_ext_data_addr, + ar->hw.reserved_ram_size); + ath6kl_dbg(ATH6KL_DBG_BOOT, + "refclk_hz %d uarttx_pin %d", + ar->hw.refclk_hz, ar->hw.uarttx_pin); + + return 0; +} + +static const char *ath6kl_init_get_hif_name(enum ath6kl_hif_type type) +{ + switch (type) { + case ATH6KL_HIF_TYPE_SDIO: + return "sdio"; + case ATH6KL_HIF_TYPE_USB: + return "usb"; + } + + return NULL; +} + + +static const struct fw_capa_str_map { + int id; + const char *name; +} fw_capa_map[] = { + { ATH6KL_FW_CAPABILITY_HOST_P2P, "host-p2p" }, + { ATH6KL_FW_CAPABILITY_SCHED_SCAN, "sched-scan" }, + { ATH6KL_FW_CAPABILITY_STA_P2PDEV_DUPLEX, "sta-p2pdev-duplex" }, + { ATH6KL_FW_CAPABILITY_INACTIVITY_TIMEOUT, "inactivity-timeout" }, + { ATH6KL_FW_CAPABILITY_RSN_CAP_OVERRIDE, "rsn-cap-override" }, + { ATH6KL_FW_CAPABILITY_WOW_MULTICAST_FILTER, "wow-mc-filter" }, + { ATH6KL_FW_CAPABILITY_BMISS_ENHANCE, "bmiss-enhance" }, + { ATH6KL_FW_CAPABILITY_SCHED_SCAN_MATCH_LIST, "sscan-match-list" }, + { ATH6KL_FW_CAPABILITY_RSSI_SCAN_THOLD, "rssi-scan-thold" }, + { ATH6KL_FW_CAPABILITY_CUSTOM_MAC_ADDR, "custom-mac-addr" }, + { ATH6KL_FW_CAPABILITY_TX_ERR_NOTIFY, "tx-err-notify" }, + { ATH6KL_FW_CAPABILITY_REGDOMAIN, "regdomain" }, + { ATH6KL_FW_CAPABILITY_SCHED_SCAN_V2, "sched-scan-v2" }, + { ATH6KL_FW_CAPABILITY_HEART_BEAT_POLL, "hb-poll" }, + { ATH6KL_FW_CAPABILITY_64BIT_RATES, "64bit-rates" }, + { ATH6KL_FW_CAPABILITY_AP_INACTIVITY_MINS, "ap-inactivity-mins" }, + { ATH6KL_FW_CAPABILITY_MAP_LP_ENDPOINT, "map-lp-endpoint" }, + { ATH6KL_FW_CAPABILITY_RATETABLE_MCS15, "ratetable-mcs15" }, + { ATH6KL_FW_CAPABILITY_NO_IP_CHECKSUM, "no-ip-checksum" }, +}; + +static const char *ath6kl_init_get_fw_capa_name(unsigned int id) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(fw_capa_map); i++) { + if (fw_capa_map[i].id == id) + return fw_capa_map[i].name; + } + + return "<unknown>"; +} + +static void ath6kl_init_get_fwcaps(struct ath6kl *ar, char *buf, size_t buf_len) +{ + u8 *data = (u8 *) ar->fw_capabilities; + size_t trunc_len, len = 0; + int i, index, bit; + char *trunc = "..."; + + for (i = 0; i < ATH6KL_FW_CAPABILITY_MAX; i++) { + index = i / 8; + bit = i % 8; + + if (index >= sizeof(ar->fw_capabilities) * 4) + break; + + if (buf_len - len < 4) { + ath6kl_warn("firmware capability buffer too small!\n"); + + /* add "..." to the end of string */ + trunc_len = strlen(trunc) + 1; + strncpy(buf + buf_len - trunc_len, trunc, trunc_len); + + return; + } + + if (data[index] & (1 << bit)) { + len += scnprintf(buf + len, buf_len - len, "%s,", + ath6kl_init_get_fw_capa_name(i)); + } + } + + /* overwrite the last comma */ + if (len > 0) + len--; + + buf[len] = '\0'; +} + +static int ath6kl_init_hw_reset(struct ath6kl *ar) +{ + ath6kl_dbg(ATH6KL_DBG_BOOT, "cold resetting the device"); + + return ath6kl_diag_write32(ar, RESET_CONTROL_ADDRESS, + cpu_to_le32(RESET_CONTROL_COLD_RST)); +} + +static int __ath6kl_init_hw_start(struct ath6kl *ar) +{ + long timeleft; + int ret, i; + char buf[200]; + + ath6kl_dbg(ATH6KL_DBG_BOOT, "hw start\n"); + + ret = ath6kl_hif_power_on(ar); + if (ret) + return ret; + + ret = ath6kl_configure_target(ar); + if (ret) + goto err_power_off; + + ret = ath6kl_init_upload(ar); + if (ret) + goto err_power_off; + + /* Do we need to finish the BMI phase */ + ret = ath6kl_bmi_done(ar); + if (ret) + goto err_power_off; + + /* + * The reason we have to wait for the target here is that the + * driver layer has to init BMI in order to set the host block + * size. + */ + ret = ath6kl_htc_wait_target(ar->htc_target); + + if (ret == -ETIMEDOUT) { + /* + * Most likely USB target is in odd state after reboot and + * needs a reset. A cold reset makes the whole device + * disappear from USB bus and initialisation starts from + * beginning. + */ + ath6kl_warn("htc wait target timed out, resetting device\n"); + ath6kl_init_hw_reset(ar); + goto err_power_off; + } else if (ret) { + ath6kl_err("htc wait target failed: %d\n", ret); + goto err_power_off; + } + + ret = ath6kl_init_service_ep(ar); + if (ret) { + ath6kl_err("Endpoint service initilisation failed: %d\n", ret); + goto err_cleanup_scatter; + } + + /* setup credit distribution */ + ath6kl_htc_credit_setup(ar->htc_target, &ar->credit_state_info); + + /* start HTC */ + ret = ath6kl_htc_start(ar->htc_target); + if (ret) { + /* FIXME: call this */ + ath6kl_cookie_cleanup(ar); + goto err_cleanup_scatter; + } + + /* Wait for Wmi event to be ready */ + timeleft = wait_event_interruptible_timeout(ar->event_wq, + test_bit(WMI_READY, + &ar->flag), + WMI_TIMEOUT); + if (timeleft <= 0) { + clear_bit(WMI_READY, &ar->flag); + ath6kl_err("wmi is not ready or wait was interrupted: %ld\n", + timeleft); + ret = -EIO; + goto err_htc_stop; + } + + ath6kl_dbg(ATH6KL_DBG_BOOT, "firmware booted\n"); + + if (test_and_clear_bit(FIRST_BOOT, &ar->flag)) { + ath6kl_info("%s %s fw %s api %d%s\n", + ar->hw.name, + ath6kl_init_get_hif_name(ar->hif_type), + ar->wiphy->fw_version, + ar->fw_api, + test_bit(TESTMODE, &ar->flag) ? " testmode" : ""); + ath6kl_init_get_fwcaps(ar, buf, sizeof(buf)); + ath6kl_info("firmware supports: %s\n", buf); + } + + if (ar->version.abi_ver != ATH6KL_ABI_VERSION) { + ath6kl_err("abi version mismatch: host(0x%x), target(0x%x)\n", + ATH6KL_ABI_VERSION, ar->version.abi_ver); + ret = -EIO; + goto err_htc_stop; + } + + ath6kl_dbg(ATH6KL_DBG_TRC, "%s: wmi is ready\n", __func__); + + /* communicate the wmi protocol verision to the target */ + /* FIXME: return error */ + if ((ath6kl_set_host_app_area(ar)) != 0) + ath6kl_err("unable to set the host app area\n"); + + for (i = 0; i < ar->vif_max; i++) { + ret = ath6kl_target_config_wlan_params(ar, i); + if (ret) + goto err_htc_stop; + } + + return 0; + +err_htc_stop: + ath6kl_htc_stop(ar->htc_target); +err_cleanup_scatter: + ath6kl_hif_cleanup_scatter(ar); +err_power_off: + ath6kl_hif_power_off(ar); + + return ret; +} + +int ath6kl_init_hw_start(struct ath6kl *ar) +{ + int err; + + err = __ath6kl_init_hw_start(ar); + if (err) + return err; + ar->state = ATH6KL_STATE_ON; + return 0; +} + +static int __ath6kl_init_hw_stop(struct ath6kl *ar) +{ + int ret; + + ath6kl_dbg(ATH6KL_DBG_BOOT, "hw stop\n"); + + ath6kl_htc_stop(ar->htc_target); + + ath6kl_hif_stop(ar); + + ath6kl_bmi_reset(ar); + + ret = ath6kl_hif_power_off(ar); + if (ret) + ath6kl_warn("failed to power off hif: %d\n", ret); + + return 0; +} + +int ath6kl_init_hw_stop(struct ath6kl *ar) +{ + int err; + + err = __ath6kl_init_hw_stop(ar); + if (err) + return err; + ar->state = ATH6KL_STATE_OFF; + return 0; +} + +void ath6kl_init_hw_restart(struct ath6kl *ar) +{ + clear_bit(WMI_READY, &ar->flag); + + ath6kl_cfg80211_stop_all(ar); + + if (__ath6kl_init_hw_stop(ar)) { + ath6kl_dbg(ATH6KL_DBG_RECOVERY, "Failed to stop during fw error recovery\n"); + return; + } + + if (__ath6kl_init_hw_start(ar)) { + ath6kl_dbg(ATH6KL_DBG_RECOVERY, "Failed to restart during fw error recovery\n"); + return; + } +} + +void ath6kl_stop_txrx(struct ath6kl *ar) +{ + struct ath6kl_vif *vif, *tmp_vif; + int i; + + set_bit(DESTROY_IN_PROGRESS, &ar->flag); + + if (down_interruptible(&ar->sem)) { + ath6kl_err("down_interruptible failed\n"); + return; + } + + for (i = 0; i < AP_MAX_NUM_STA; i++) + aggr_reset_state(ar->sta_list[i].aggr_conn); + + spin_lock_bh(&ar->list_lock); + list_for_each_entry_safe(vif, tmp_vif, &ar->vif_list, list) { + list_del(&vif->list); + spin_unlock_bh(&ar->list_lock); + ath6kl_cfg80211_vif_stop(vif, test_bit(WMI_READY, &ar->flag)); + rtnl_lock(); + ath6kl_cfg80211_vif_cleanup(vif); + rtnl_unlock(); + spin_lock_bh(&ar->list_lock); + } + spin_unlock_bh(&ar->list_lock); + + clear_bit(WMI_READY, &ar->flag); + + if (ar->fw_recovery.enable) + del_timer_sync(&ar->fw_recovery.hb_timer); + + /* + * After wmi_shudown all WMI events will be dropped. We + * need to cleanup the buffers allocated in AP mode and + * give disconnect notification to stack, which usually + * happens in the disconnect_event. Simulate the disconnect + * event by calling the function directly. Sometimes + * disconnect_event will be received when the debug logs + * are collected. + */ + ath6kl_wmi_shutdown(ar->wmi); + + clear_bit(WMI_ENABLED, &ar->flag); + if (ar->htc_target) { + ath6kl_dbg(ATH6KL_DBG_TRC, "%s: shut down htc\n", __func__); + ath6kl_htc_stop(ar->htc_target); + } + + /* + * Try to reset the device if we can. The driver may have been + * configure NOT to reset the target during a debug session. + */ + ath6kl_init_hw_reset(ar); + + up(&ar->sem); +} +EXPORT_SYMBOL(ath6kl_stop_txrx); |