| /** |
| * 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" |
| |
| 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(BIT(3)), |
| .bbp_lmac_clk_reg_val = cpu_to_le16(0x121), |
| .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 |
| } |
| }, |
| { |
| .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 |
| }; |
| |
| 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 = 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 |
| } |
| }, |
| { |
| .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 |
| }; |
| |
| 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; |
| } |
| |
| /** |
| * 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; |
| |
| if (skb == NULL) { |
| rsi_dbg(ERR_ZONE, "%s: Unable to allocate skb\n", __func__); |
| return -ENOMEM; |
| } |
| 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; |
| |
| rsi_dbg(INFO_ZONE, "%s: Sending rate symbol req frame\n", __func__); |
| |
| skb = dev_alloc_skb(sizeof(struct rsi_radio_caps)); |
| |
| if (!skb) { |
| rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n", |
| __func__); |
| return -ENOMEM; |
| } |
| |
| memset(skb->data, 0, sizeof(struct rsi_radio_caps)); |
| radio_caps = (struct rsi_radio_caps *)skb->data; |
| |
| radio_caps->desc_word[1] = cpu_to_le16(RADIO_CAPABILITIES); |
| radio_caps->desc_word[4] = cpu_to_le16(RSI_RF_TYPE << 8); |
| |
| if (common->channel_width == BW_40MHZ) { |
| radio_caps->desc_word[7] |= cpu_to_le16(RSI_LMAC_CLOCK_80MHZ); |
| radio_caps->desc_word[7] |= cpu_to_le16(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->desc_word[5] = |
| cpu_to_le16(LOWER_20_ENABLE); |
| radio_caps->desc_word[5] |= |
| cpu_to_le16(LOWER_20_ENABLE >> 12); |
| } else if (conf_is_ht40_minus(conf)) { |
| radio_caps->desc_word[5] = |
| cpu_to_le16(UPPER_20_ENABLE); |
| radio_caps->desc_word[5] |= |
| cpu_to_le16(UPPER_20_ENABLE >> 12); |
| } else { |
| radio_caps->desc_word[5] = |
| cpu_to_le16(BW_40MHZ << 12); |
| radio_caps->desc_word[5] |= |
| cpu_to_le16(FULL40M_ENABLE); |
| } |
| } |
| } |
| |
| 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); |
| |
| radio_caps->desc_word[7] |= cpu_to_le16(radio_id << 8); |
| |
| 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 < MAX_HW_QUEUES - 4; 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); |
| } |
| |
| 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); |
| |
| radio_caps->desc_word[0] = cpu_to_le16((sizeof(struct rsi_radio_caps) - |
| FRAME_DESC_SZ) | |
| (RSI_WIFI_MGMT_Q << 12)); |
| |
| |
| skb_put(skb, (sizeof(struct rsi_radio_caps))); |
| |
| 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, |
| u8 type) |
| { |
| struct rsi_hw *adapter = common->priv; |
| struct ieee80211_tx_info *info; |
| struct skb_info *rx_params; |
| u8 pad_bytes = msg[4]; |
| u8 pkt_recv; |
| struct sk_buff *skb; |
| char *buffer; |
| |
| if (type == RX_DOT11_MGMT) { |
| if (!adapter->sc_nvifs) |
| return -ENOLINK; |
| |
| msg_len -= pad_bytes; |
| if ((msg_len <= 0) || (!msg)) { |
| 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) { |
| rsi_dbg(ERR_ZONE, "%s: Failed to allocate skb\n", |
| __func__); |
| return -ENOMEM; |
| } |
| |
| buffer = skb_put(skb, msg_len); |
| |
| memcpy(buffer, |
| (u8 *)(msg + FRAME_DESC_SZ + pad_bytes), |
| msg_len); |
| |
| pkt_recv = buffer[0]; |
| |
| 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); |
| } else { |
| rsi_dbg(MGMT_TX_ZONE, "%s: Internal Packet\n", __func__); |
| } |
| |
| 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. |
| */ |
| static int rsi_hal_send_sta_notify_frame(struct rsi_common *common, |
| u8 opmode, |
| u8 notify_event, |
| const unsigned char *bssid, |
| u8 qos_enable, |
| u16 aid) |
| { |
| struct sk_buff *skb = NULL; |
| struct rsi_peer_notify *peer_notify; |
| u16 vap_id = 0; |
| int status; |
| |
| rsi_dbg(MGMT_TX_ZONE, "%s: Sending sta notify frame\n", __func__); |
| |
| skb = dev_alloc_skb(sizeof(struct rsi_peer_notify)); |
| |
| if (!skb) { |
| rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n", |
| __func__); |
| return -ENOMEM; |
| } |
| |
| memset(skb->data, 0, sizeof(struct rsi_peer_notify)); |
| peer_notify = (struct rsi_peer_notify *)skb->data; |
| |
| peer_notify->command = cpu_to_le16(opmode << 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->sta_flags = cpu_to_le32((qos_enable) ? 1 : 0); |
| |
| peer_notify->desc_word[0] = |
| cpu_to_le16((sizeof(struct rsi_peer_notify) - FRAME_DESC_SZ) | |
| (RSI_WIFI_MGMT_Q << 12)); |
| peer_notify->desc_word[1] = cpu_to_le16(PEER_NOTIFY); |
| peer_notify->desc_word[7] |= cpu_to_le16(vap_id << 8); |
| |
| skb_put(skb, sizeof(struct rsi_peer_notify)); |
| |
| status = rsi_send_internal_mgmt_frame(common, skb); |
| |
| if (!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) |
| { |
| struct sk_buff *skb = NULL; |
| struct rsi_mac_frame *mgmt_frame; |
| u8 peer_id = 0; |
| |
| 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; |
| |
| rsi_dbg(MGMT_TX_ZONE, "%s: Sending AMPDU indication frame\n", __func__); |
| |
| mgmt_frame->desc_word[0] = cpu_to_le16(RSI_WIFI_MGMT_Q << 12); |
| mgmt_frame->desc_word[1] = cpu_to_le16(AMPDU_IND); |
| |
| if (event == STA_TX_ADDBA_DONE) { |
| mgmt_frame->desc_word[4] = cpu_to_le16(ssn); |
| mgmt_frame->desc_word[5] = cpu_to_le16(buf_size); |
| mgmt_frame->desc_word[7] = |
| cpu_to_le16((tid | (START_AMPDU_AGGR << 4) | (peer_id << 8))); |
| } else if (event == STA_RX_ADDBA_DONE) { |
| mgmt_frame->desc_word[4] = cpu_to_le16(ssn); |
| mgmt_frame->desc_word[7] = cpu_to_le16(tid | |
| (START_AMPDU_AGGR << 4) | |
| (RX_BA_INDICATION << 5) | |
| (peer_id << 8)); |
| } else if (event == STA_TX_DELBA) { |
| mgmt_frame->desc_word[7] = cpu_to_le16(tid | |
| (STOP_AMPDU_AGGR << 4) | |
| (peer_id << 8)); |
| } else if (event == STA_RX_DELBA) { |
| mgmt_frame->desc_word[7] = cpu_to_le16(tid | |
| (STOP_AMPDU_AGGR << 4) | |
| (RX_BA_INDICATION << 5) | |
| (peer_id << 8)); |
| } |
| |
| skb_put(skb, FRAME_DESC_SZ); |
| |
| 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_mac_frame *mgmt_frame; |
| |
| rsi_dbg(MGMT_TX_ZONE, "%s: Sending program BB/RF 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(BBP_PROG_IN_TA); |
| mgmt_frame->desc_word[4] = cpu_to_le16(common->endpoint); |
| |
| if (common->rf_reset) { |
| mgmt_frame->desc_word[7] = 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; |
| mgmt_frame->desc_word[7] |= cpu_to_le16(PUT_BBP_RESET | |
| BBP_REG_WRITE | (RSI_RF_TYPE << 4)); |
| skb_put(skb, FRAME_DESC_SZ); |
| |
| 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) |
| { |
| 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 vap_id = 0; |
| |
| rsi_dbg(MGMT_TX_ZONE, "%s: Sending VAP capabilities frame\n", __func__); |
| |
| skb = dev_alloc_skb(sizeof(struct rsi_vap_caps)); |
| if (!skb) { |
| rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n", |
| __func__); |
| return -ENOMEM; |
| } |
| |
| memset(skb->data, 0, sizeof(struct rsi_vap_caps)); |
| vap_caps = (struct rsi_vap_caps *)skb->data; |
| |
| vap_caps->desc_word[0] = cpu_to_le16((sizeof(struct rsi_vap_caps) - |
| FRAME_DESC_SZ) | |
| (RSI_WIFI_MGMT_Q << 12)); |
| vap_caps->desc_word[1] = cpu_to_le16(VAP_CAPABILITIES); |
| vap_caps->desc_word[4] = cpu_to_le16(mode | |
| (common->channel_width << 8)); |
| vap_caps->desc_word[7] = cpu_to_le16((vap_id << 8) | |
| (common->mac_id << 4) | |
| common->radio_id); |
| |
| memcpy(vap_caps->mac_addr, common->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); |
| vap_caps->default_mgmt_rate = cpu_to_le32(RSI_RATE_6); |
| |
| if (common->band == NL80211_BAND_5GHZ) { |
| vap_caps->default_ctrl_rate = cpu_to_le32(RSI_RATE_6); |
| if (conf_is_ht40(&common->priv->hw->conf)) { |
| vap_caps->default_ctrl_rate |= |
| cpu_to_le32(FULL40M_ENABLE << 16); |
| } |
| } else { |
| vap_caps->default_ctrl_rate = cpu_to_le32(RSI_RATE_1); |
| if (conf_is_ht40_minus(conf)) |
| vap_caps->default_ctrl_rate |= |
| cpu_to_le32(UPPER_20_ENABLE << 16); |
| else if (conf_is_ht40_plus(conf)) |
| vap_caps->default_ctrl_rate |= |
| cpu_to_le32(LOWER_20_ENABLE << 16); |
| } |
| |
| vap_caps->default_data_rate = 0; |
| vap_caps->beacon_interval = cpu_to_le16(200); |
| vap_caps->dtim_period = cpu_to_le16(4); |
| |
| skb_put(skb, sizeof(*vap_caps)); |
| |
| 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) |
| { |
| struct sk_buff *skb = NULL; |
| struct rsi_set_key *set_key; |
| u16 key_descriptor = 0; |
| |
| rsi_dbg(MGMT_TX_ZONE, "%s: Sending load key frame\n", __func__); |
| |
| skb = dev_alloc_skb(sizeof(struct rsi_set_key)); |
| if (!skb) { |
| rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n", |
| __func__); |
| return -ENOMEM; |
| } |
| |
| memset(skb->data, 0, sizeof(struct rsi_set_key)); |
| set_key = (struct rsi_set_key *)skb->data; |
| |
| if ((cipher == WLAN_CIPHER_SUITE_WEP40) || |
| (cipher == WLAN_CIPHER_SUITE_WEP104)) { |
| key_len += 1; |
| key_descriptor |= BIT(2); |
| if (key_len >= 13) |
| key_descriptor |= BIT(3); |
| } else if (cipher != KEY_TYPE_CLEAR) { |
| key_descriptor |= BIT(4); |
| if (key_type == RSI_PAIRWISE_KEY) |
| key_id = 0; |
| if (cipher == WLAN_CIPHER_SUITE_TKIP) |
| key_descriptor |= BIT(5); |
| } |
| key_descriptor |= (key_type | BIT(13) | (key_id << 14)); |
| |
| set_key->desc_word[0] = cpu_to_le16((sizeof(struct rsi_set_key) - |
| FRAME_DESC_SZ) | |
| (RSI_WIFI_MGMT_Q << 12)); |
| set_key->desc_word[1] = cpu_to_le16(SET_KEY_REQ); |
| set_key->desc_word[4] = cpu_to_le16(key_descriptor); |
| |
| 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); |
| |
| skb_put(skb, sizeof(struct rsi_set_key)); |
| |
| 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 rsi_hw *adapter = common->priv; |
| struct ieee80211_hw *hw = adapter->hw; |
| u8 prev_bw = common->channel_width; |
| u8 prev_ep = common->endpoint; |
| struct ieee80211_channel *curchan = hw->conf.chandef.chan; |
| 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, u16 channel) |
| { |
| struct sk_buff *skb = NULL; |
| struct rsi_mac_frame *mgmt_frame; |
| |
| rsi_dbg(MGMT_TX_ZONE, |
| "%s: Sending scan 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_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(SCAN_REQUEST); |
| mgmt_frame->desc_word[4] = cpu_to_le16(channel); |
| |
| mgmt_frame->desc_word[7] = cpu_to_le16(PUT_BBP_RESET | |
| BBP_REG_WRITE | |
| (RSI_RF_TYPE << 4)); |
| |
| mgmt_frame->desc_word[5] = cpu_to_le16(0x01); |
| mgmt_frame->desc_word[6] = cpu_to_le16(0x12); |
| |
| if (common->channel_width == BW_40MHZ) |
| mgmt_frame->desc_word[5] |= cpu_to_le16(0x1 << 8); |
| |
| common->channel = channel; |
| |
| skb_put(skb, FRAME_DESC_SZ); |
| |
| 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 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 = common->bitrate_mask[band]; |
| |
| u16 *selected_rates, min_rate; |
| |
| skb = dev_alloc_skb(sizeof(struct rsi_auto_rate)); |
| if (!skb) { |
| rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n", |
| __func__); |
| return -ENOMEM; |
| } |
| |
| 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; |
| } |
| |
| memset(skb->data, 0, sizeof(struct rsi_auto_rate)); |
| |
| 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_word[1] = cpu_to_le16(AUTO_RATE_IND); |
| |
| if (common->channel_width == BW_40MHZ) |
| auto_rate->desc_word[7] |= cpu_to_le16(1); |
| |
| if (band == NL80211_BAND_2GHZ) { |
| min_rate = RSI_RATE_1; |
| rate_table_offset = 0; |
| } 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 (common->vif_info[0].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 (common->vif_info[0].is_ht) { |
| for (ii = rate_offset, kk = ARRAY_SIZE(rsi_mcsrates) - 1; |
| ii < rate_offset + 2 * ARRAY_SIZE(rsi_mcsrates); ii++) { |
| if (common->vif_info[0].sgi || |
| conf_is_ht40(&common->priv->hw->conf)) |
| auto_rate->supported_rates[ii++] = |
| cpu_to_le16(rsi_mcsrates[kk] | BIT(9)); |
| 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); |
| auto_rate->desc_word[7] |= cpu_to_le16(0 << 8); |
| num_supported_rates *= 2; |
| |
| auto_rate->desc_word[0] = cpu_to_le16((sizeof(*auto_rate) - |
| FRAME_DESC_SZ) | |
| (RSI_WIFI_MGMT_Q << 12)); |
| |
| skb_put(skb, |
| sizeof(struct rsi_auto_rate)); |
| 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, |
| u8 status, |
| const unsigned char *bssid, |
| u8 qos_enable, |
| u16 aid) |
| { |
| if (status) { |
| rsi_hal_send_sta_notify_frame(common, |
| RSI_IFTYPE_STATION, |
| STA_CONNECTED, |
| bssid, |
| qos_enable, |
| aid); |
| if (common->min_rate == 0xffff) |
| rsi_send_auto_rate_request(common); |
| } else { |
| rsi_hal_send_sta_notify_frame(common, |
| RSI_IFTYPE_STATION, |
| STA_DISCONNECTED, |
| bssid, |
| qos_enable, |
| aid); |
| } |
| } |
| |
| /** |
| * 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_mac_frame *mgmt_frame; |
| 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_mac_frame *)skb->data; |
| |
| /* FrameType */ |
| mgmt_frame->desc_word[1] = cpu_to_le16(EEPROM_READ_TYPE); |
| mgmt_frame->desc_word[0] = cpu_to_le16(RSI_WIFI_MGMT_Q << 12); |
| /* Number of bytes to read */ |
| mgmt_frame->desc_word[3] = cpu_to_le16(ETH_ALEN + |
| WLAN_MAC_MAGIC_WORD_LEN + |
| WLAN_HOST_MODE_LEN + |
| WLAN_FW_VERSION_LEN); |
| /* Address to read */ |
| mgmt_frame->desc_word[4] = cpu_to_le16(WLAN_MAC_EEPROM_ADDR); |
| |
| 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_mac_frame *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_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(BLOCK_HW_QUEUE); |
| |
| if (block_event) { |
| rsi_dbg(INFO_ZONE, "blocking the data qs\n"); |
| mgmt_frame->desc_word[4] = cpu_to_le16(0xf); |
| } else { |
| rsi_dbg(INFO_ZONE, "unblocking the data qs\n"); |
| mgmt_frame->desc_word[5] = cpu_to_le16(0xf); |
| } |
| |
| skb_put(skb, FRAME_DESC_SZ); |
| |
| return rsi_send_internal_mgmt_frame(common, skb); |
| |
| } |
| |
| |
| /** |
| * rsi_handle_ta_confirm_type() - This function handles the confirm frames. |
| * @common: Pointer to the driver private structure. |
| * @msg: Pointer to received packet. |
| * |
| * Return: 0 on success, -1 on failure. |
| */ |
| static int rsi_handle_ta_confirm_type(struct rsi_common *common, |
| u8 *msg) |
| { |
| u8 sub_type = (msg[15] & 0xff); |
| |
| switch (sub_type) { |
| case BOOTUP_PARAMS_REQUEST: |
| rsi_dbg(FSM_ZONE, "%s: Boot up params confirm received\n", |
| __func__); |
| if (common->fsm_state == FSM_BOOT_PARAMS_SENT) { |
| if (rsi_eeprom_read(common)) { |
| common->fsm_state = FSM_CARD_NOT_READY; |
| goto out; |
| } else { |
| 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_TYPE: |
| if (common->fsm_state == FSM_EEPROM_READ_MAC_ADDR) { |
| if (msg[16] == MAGIC_WORD) { |
| u8 offset = (FRAME_DESC_SZ + WLAN_HOST_MODE_LEN |
| + WLAN_MAC_MAGIC_WORD_LEN); |
| memcpy(common->mac_addr, |
| &msg[offset], |
| ETH_ALEN); |
| memcpy(&common->fw_ver, |
| &msg[offset + ETH_ALEN], |
| sizeof(struct version_info)); |
| |
| } else { |
| common->fsm_state = FSM_CARD_NOT_READY; |
| break; |
| } |
| if (rsi_send_reset_mac(common)) |
| goto out; |
| else |
| common->fsm_state = FSM_RESET_MAC_SENT; |
| } else { |
| rsi_dbg(ERR_ZONE, |
| "%s: Received eeprom mac addr in %d state\n", |
| __func__, common->fsm_state); |
| 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; |
| 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; |
| |
| 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; |
| } |
| |
| /** |
| * 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]); |
| int ret; |
| |
| rsi_dbg(FSM_ZONE, "%s: Msg Len: %d, Msg Type: %4x\n", |
| __func__, msg_len, msg_type); |
| |
| if (msg_type == TA_CONFIRM_TYPE) { |
| return rsi_handle_ta_confirm_type(common, msg); |
| } else if (msg_type == CARD_READY_IND) { |
| rsi_dbg(FSM_ZONE, "%s: Card ready indication received\n", |
| __func__); |
| if (common->fsm_state == FSM_CARD_NOT_READY) { |
| rsi_set_default_parameters(common); |
| |
| ret = rsi_load_bootup_params(common); |
| if (ret) |
| return ret; |
| else |
| common->fsm_state = FSM_BOOT_PARAMS_SENT; |
| } else { |
| return -EINVAL; |
| } |
| } else if (msg_type == TX_STATUS_IND) { |
| if (msg[15] == PROBEREQ_CONFIRM) { |
| common->mgmt_q_block = false; |
| rsi_dbg(FSM_ZONE, "%s: Probe confirm received\n", |
| __func__); |
| } |
| } else { |
| return rsi_mgmt_pkt_to_core(common, msg, msg_len, msg_type); |
| } |
| return 0; |
| } |