From: Jahnavi Meher <jahnavi.meher@xxxxxxxxxxxxxxxxxx>
This patch has the functions which prepare mgmt frames
that are internal to the device and also handle exchange
of these internal mgmt frames with the device.
Signed-off-by: Jahnavi Meher <jahnavi.meher@xxxxxxxxxxxxxxxxxx>
---
rsi_91x_mgmt.c | 1345 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 1345 insertions(+)
diff -uprN a/drivers/net/wireless/rsi/91x/rsi_91x_mgmt.c b/drivers/net/wireless/rsi/91x/rsi_91x_mgmt.c
--- a/drivers/net/wireless/rsi/91x/rsi_91x_mgmt.c 1970-01-01 05:30:00.000000000 +0530
+++ b/drivers/net/wireless/rsi/91x/rsi_91x_mgmt.c 2014-01-30 16:26:31.911451234 +0530
@@ -0,0 +1,1345 @@
+/**
+ * @file rsi_91x_mgmt.c
+ * @author
+ * @version 1.0
+ *
+ * @section LICENSE
+ * Copyright (c) 2013 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.
+ *
+ * @section DESCRIPTION
+ *
+ * The file contains the message information exchanged between the
+ * driver and underlying device.
+ */
+
+#include "../include/rsi_main.h"
+#include "../include/rsi_hw_intf.h"
+#include "../include/rsi_device_ops.h"
+#include "../include/rsi_mgmt.h"
+#include "../include/rsi_mac80211.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_umac_clk = 0x0,
+ .switch_qspi_clk = 0x0,
+ .switch_slp_clk_2_32 = 0x0,
+ .switch_bbp_lmac_clk_reg = 0x1,
+ .switch_mem_ctrl_cfg = 0x0,
+ .reserved = 0x0,
+ .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_umac_clk = 0x0,
+ .switch_qspi_clk = 0x0,
+ .switch_slp_clk_2_32 = 0x0,
+ .switch_bbp_lmac_clk_reg = 0x0,
+ .switch_mem_ctrl_cfg = 0x0,
+ .reserved = 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_umac_clk = 0x0,
+ .switch_qspi_clk = 0x0,
+ .switch_slp_clk_2_32 = 0x0,
+ .switch_bbp_lmac_clk_reg = 0x0,
+ .switch_mem_ctrl_cfg = 0x0,
+ .reserved = 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 = 0x5aa5,
+ .crystal_good_time = 0x0,
+ .valid = 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 = ((TA_PLL_N_VAL_40 << 8) |
+ (TA_PLL_M_VAL_40)),
+ .pll_reg_2 = (TA_PLL_P_VAL_40),
+ },
+ .pll960_info_g = {
+ .pll_reg_1 = ((PLL960_P_VAL_40 << 8) |
+ (PLL960_N_VAL_40)),
+ .pll_reg_2 = PLL960_M_VAL_40,
+ .pll_reg_3 = 0x0,
+ },
+ .afepll_info_g = {
+ .pll_reg = 0x9f0,
+ }
+ },
+ .switch_clk_g = {
+ .switch_umac_clk = 0x1,
+ .switch_qspi_clk = 0x0,
+ .switch_slp_clk_2_32 = 0x0,
+ .switch_bbp_lmac_clk_reg = 0x1,
+ .switch_mem_ctrl_cfg = 0x0,
+ .reserved = 0x0,
+ .bbp_lmac_clk_reg_val = 0x1121,
+ .umac_clock_reg_config = 0x48,
+ .qspi_uart_clock_reg_config = 0x0
+ }
+ },
+ {
+ .pll_config_g = {
+ .tapll_info_g = {
+ .pll_reg_1 = ((TA_PLL_N_VAL_40 << 8) |
+ (TA_PLL_M_VAL_40)),
+ .pll_reg_2 = (TA_PLL_P_VAL_40)
+ },
+ .pll960_info_g = {
+ .pll_reg_1 = ((PLL960_P_VAL_40 << 8) |
+ (PLL960_N_VAL_40)),
+ .pll_reg_2 = PLL960_M_VAL_40,
+ .pll_reg_3 = 0x0,
+ },
+ .afepll_info_g = {
+ .pll_reg = 0x9f0,
+ }
+ },
+ .switch_clk_g = {
+ .switch_umac_clk = 0x0,
+ .switch_qspi_clk = 0x0,
+ .switch_slp_clk_2_32 = 0x0,
+ .switch_bbp_lmac_clk_reg = 0x0,
+ .switch_mem_ctrl_cfg = 0x0,
+ .reserved = 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 = ((TA_PLL_N_VAL_40 << 8) |
+ (TA_PLL_M_VAL_40)),
+ .pll_reg_2 = (TA_PLL_P_VAL_40),
+ },
+ .pll960_info_g = {
+ .pll_reg_1 = ((PLL960_P_VAL_40 << 8) |
+ (PLL960_N_VAL_40)),
+ .pll_reg_2 = PLL960_M_VAL_40,
+ .pll_reg_3 = 0x0,
+ },
+ .afepll_info_g = {
+ .pll_reg = 0x9f0,
+ }
+ },
+ .switch_clk_g = {
+ .switch_umac_clk = 0x0,
+ .switch_qspi_clk = 0x0,
+ .switch_slp_clk_2_32 = 0x0,
+ .switch_bbp_lmac_clk_reg = 0x0,
+ .switch_mem_ctrl_cfg = 0x0,
+ .reserved = 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 unsigned short mcs[] = {13, 26, 39, 52, 78, 104, 117, 130};
+
+/**
+ * This function sets the contention values for the backoff procedure.
+ *
+ * @param common Pointer to the driver common structure.
+ * @return None.
+ */
+static void rsi_set_contention_vals(struct rsi_common *common)
+{
+ unsigned char ii = 0;
+
+ for (ii = 0; 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;
+ }
+}
+
+/**
+ * This function sends management frame to firmware.
+ * Also schedules packet to queue for transmit.
+ *
+ * @param common Pointer to the driver private structure.
+ * @param addr Pointer to rsi mac frame structure.
+ * @param len Length.
+ * @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 -1;
+ }
+ 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);
+ common->common_ops->set_event(&common->tx_event);
+ return 0;
+}
+
+/**
+ * This function used to send radio capabilities values to firmware.
+ *
+ * @param 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_mac_frame *mgmt_frame;
+ struct rsi_hw *adapter = common->priv;
+ struct ieee80211_hw *hw = adapter->hw;
+ unsigned short inx = 0;
+ unsigned char ii;
+ unsigned char radio_id = 0;
+ unsigned short gc[20] = {0xf0, 0xf0, 0xf0, 0xf0,
+ 0xf0, 0xf0, 0xf0, 0xf0,
+ 0xf0, 0xf0, 0xf0, 0xf0,
+ 0xf0, 0xf0, 0xf0, 0xf0,
+ 0xf0, 0xf0, 0xf0, 0xf0};
+ struct ieee80211_conf *conf = &hw->conf;
+ struct sk_buff *skb;
+
+ rsi_dbg(INFO_ZONE,
+ "%s: Sending rate symbol req frame\n", __func__);
+
+ skb = dev_alloc_skb(MAX_MGMT_PKT_SIZE);
+
+ if (!skb) {
+ rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n",
+ __func__);
+ return -1;
+ }
+
+ memset(skb->data, 0, MAX_MGMT_PKT_SIZE);
+ mgmt_frame = (struct rsi_mac_frame *)skb->data;
+
+ mgmt_frame->desc_word[1] = cpu_to_le16(RADIO_CAPABILITIES);
+ mgmt_frame->desc_word[4] = cpu_to_le16(RSI_RF_TYPE << 8);
+
+ if (common->channel_width == BW_40MHZ) {
+ mgmt_frame->desc_word[7] |= cpu_to_le16(RSI_LMAC_CLOCK_80MHZ);
+ mgmt_frame->desc_word[7] |= cpu_to_le16(RSI_ENABLE_40MHZ);
+ if (common->channel_width) {
+ mgmt_frame->desc_word[5] =
+ cpu_to_le16(common->channel_width << 12);
+ mgmt_frame->desc_word[5] |= cpu_to_le16(FULL40M_ENABLE);
+ }
+
+ if (conf_is_ht40_minus(conf)) {
+ mgmt_frame->desc_word[5] = 0;
+ mgmt_frame->desc_word[5] |=
+ cpu_to_le16(LOWER_20_ENABLE);
+ mgmt_frame->desc_word[5] |=
+ cpu_to_le16(LOWER_20_ENABLE >> 12);
+ }
+
+ if (conf_is_ht40_plus(conf)) {
+ mgmt_frame->desc_word[5] = 0;
+ mgmt_frame->desc_word[5] |=
+ cpu_to_le16(UPPER_20_ENABLE);
+ mgmt_frame->desc_word[5] |=
+ cpu_to_le16(UPPER_20_ENABLE >> 12);
+ }
+ }
+
+ mgmt_frame->desc_word[7] |= cpu_to_le16(radio_id << 8);
+
+ for (ii = 0; ii < MAX_HW_QUEUES; ii++) {
+ mgmt_frame->u.radio_caps.qos_params[ii].cont_win_min_q =
+ cpu_to_le16(3);
+ mgmt_frame->u.radio_caps.qos_params[ii].cont_win_max_q =
+ cpu_to_le16(0x3f);
+ mgmt_frame->u.radio_caps.qos_params[ii].aifsn_val_q =
+ cpu_to_le16(2);
+ mgmt_frame->u.radio_caps.qos_params[ii].txop_q = 0;
+ }
+
+ for (ii = 0; ii < MAX_HW_QUEUES - 4; ii++) {
+ mgmt_frame->u.radio_caps.qos_params[ii].cont_win_min_q =
+ cpu_to_le16(common->edca_params[ii].cw_min);
+ mgmt_frame->u.radio_caps.qos_params[ii].cont_win_max_q =
+ cpu_to_le16(common->edca_params[ii].cw_max);
+ mgmt_frame->u.radio_caps.qos_params[ii].aifsn_val_q =
+ cpu_to_le16((common->edca_params[ii].aifs) << 8);
+ mgmt_frame->u.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++)
+ mgmt_frame->u.radio_caps.gcpd_per_rate[inx++] =
+ cpu_to_le16(common->rate_pwr[ii] & 0x00FF);
+
+ mgmt_frame->desc_word[0] = cpu_to_le16(sizeof(mgmt_frame->u.radio_caps)|
+ (RSI_WIFI_MGMT_Q << 12));
+
+
+ skb_put(skb, (sizeof(mgmt_frame->u.radio_caps) + FRAME_DESC_SZ));
+
+ return rsi_send_internal_mgmt_frame(common, skb);
+}
+
+/**
+ * This function is the entry point of Management module.
+ *
+ * @param common Pointer to the driver private structure.
+ * @param msg Pointer to received packet.
+ * @param msg_len Length of the recieved packet.
+ * @param type Type of recieved packet.
+ * @return 0 on success, -1 on failure.
+ */
+static int rsi_mgmt_pkt_to_core(struct rsi_common *common,
+ unsigned char *msg,
+ int msg_len,
+ unsigned char type)
+{
+ struct ieee80211_tx_info *info;
+ struct skb_info *rx_params;
+ unsigned char pad_bytes = msg[4];
+ unsigned char pkt_recv;
+ struct sk_buff *skb;
+ char *buffer;
+
+ if (type == RX_DOT11_MGMT) {
+ msg_len -= pad_bytes;
+ if ((msg_len <= 0) || (!msg)) {
+ rsi_dbg(MGMT_RX_ZONE, "Invalid rx msg of len = %d\n",
+ __func__, msg_len);
+ return -1;
+ }
+
+ skb = dev_alloc_skb(msg_len);
+ if (!skb) {
+ rsi_dbg(ERR_ZONE, "%s: Failed to allocate skb\n",
+ __func__);
+ return -1;
+ }
+
+ buffer = skb_put(skb, msg_len);
+
+ memcpy(buffer,
+ (unsigned char *)(msg + FRAME_DESC_SZ + pad_bytes),
+ msg_len);
+
+ pkt_recv = buffer[0];
+
+ if ((pkt_recv != 0x50) && (pkt_recv != 0x80) &&
+ (pkt_recv != 0x40)) {
+ rsi_dbg(MGMT_RX_ZONE, "%s: ===> MGMT PKT RCVD <===\n",
+ __func__);
+ }
+ 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;
+}
+
+/**
+ * This function sends station notify frame to firmware.
+ *
+ * @param common Pointer to the driver private structure.
+ * @param opmode Operating mode of device.
+ * @param notify_event Notification about station connection.
+ * @param bssid bssid.
+ * @param qos_enable Qos is enabled.
+ * @param 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,
+ unsigned char opmode,
+ unsigned char notify_event,
+ const unsigned char *bssid,
+ unsigned char qos_enable,
+ unsigned short aid)
+{
+ struct sk_buff *skb = NULL;
+ struct rsi_mac_frame *mgmt_frame;
+ unsigned short vap_id = 0;
+ int status;
+
+ rsi_dbg(MGMT_TX_ZONE, "%s: Sending sta notify frame\n", __func__);
+
+ skb = dev_alloc_skb(MAX_MGMT_PKT_SIZE);
+
+ if (!skb) {
+ rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n",
+ __func__);
+ return -1;
+ }
+
+ memset(skb->data, 0, MAX_MGMT_PKT_SIZE);
+ mgmt_frame = (struct rsi_mac_frame *)skb->data;
+
+ mgmt_frame->u.peer_notify.command = cpu_to_le16(opmode << 1);
+
+ switch (notify_event) {
+ case STA_CONNECTED:
+ mgmt_frame->u.peer_notify.command |= cpu_to_le16(RSI_ADD_PEER);
+ break;
+ case STA_DISCONNECTED:
+ mgmt_frame->u.peer_notify.command |=
+ cpu_to_le16(RSI_DELETE_PEER);
+ break;
+ case STA_TX_ADDBA_DONE:
+ case STA_TX_DELBA:
+ case STA_RX_ADDBA_DONE:
+ case STA_RX_DELBA:
+ break;
+ default:
+ break;
+ }
+
+ mgmt_frame->u.peer_notify.command |= cpu_to_le16((aid & 0xfff) << 4);
+ memcpy(mgmt_frame->u.peer_notify.mac_addr, bssid, ETH_ALEN);
+ mgmt_frame->u.peer_notify.sta_flags = cpu_to_le16((qos_enable) ? 1 : 0);
+
+ mgmt_frame->desc_word[0] =
+ cpu_to_le16(sizeof(mgmt_frame->u.peer_notify) |
+ (RSI_WIFI_MGMT_Q << 12));
+ mgmt_frame->desc_word[1] = cpu_to_le16(PEER_NOTIFY);
+ mgmt_frame->desc_word[7] |= cpu_to_le16(vap_id << 8);
+
+ skb_put(skb, sizeof(mgmt_frame->u.peer_notify) + FRAME_DESC_SZ);
+
+ 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;
+}
+
+/**
+ * This function sends ampdu indication frame to firmware.
+ *
+ * @param common Pointer to the driver private structure.
+ * @param tid traffic identifier.
+ * @param ssn ssn.
+ * @param buf_size buffer size (for kernel version > 2.6.38).
+ * @param event notification about station connection.
+ * @return 0 on success, corresponding negative error code on failure.
+ */
+int rsi_send_ampdu_indication_frame(struct rsi_common *common,
+ unsigned short tid,
+ unsigned short ssn,
+ unsigned char buf_size,
+ unsigned char event)
+{
+ struct sk_buff *skb = NULL;
+ struct rsi_mac_frame *mgmt_frame;
+ unsigned char peer_id = 0;
+
+ skb = dev_alloc_skb(MAX_MGMT_PKT_SIZE);
+
+ if (!skb) {
+ rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n",
+ __func__);
+ return -1;
+ }
+
+ memset(skb->data, 0, MAX_MGMT_PKT_SIZE);
+ 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);
+}
+
+/**
+ * This function starts base band and RF programming.
+ * This is called after initial configurations are done.
+ *
+ * @param 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(MAX_MGMT_PKT_SIZE);
+ if (!skb) {
+ rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n",
+ __func__);
+ return -1;
+ }
+
+ memset(skb->data, 0, MAX_MGMT_PKT_SIZE);
+ mgmt_frame = (struct rsi_mac_frame *)skb->data;
+
+#ifdef USE_USB_INTF
+ mgmt_frame->desc_word[0] = cpu_to_le16(RSI_WIFI_MGMT_Q << 12);
+#else
+ mgmt_frame->desc_word[0] = cpu_to_le16((FRAME_DESC_SZ) |
+ (RSI_WIFI_MGMT_Q << 12));
+#endif
+ mgmt_frame->desc_word[1] = cpu_to_le16(BBP_PROG_IN_TA);
+ mgmt_frame->desc_word[4] = cpu_to_le16(common->endpoint << 8);
+
+ 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);
+}
+
+/**
+ * This function sends vap capabilities to firmware.
+ *
+ * @param common Pointer to the driver private structure.
+ * @param opmode Operating mode of device.
+ * @return 0 on success, corresponding negative error code on failure.
+ */
+int rsi_set_vap_capabilities(struct rsi_common *common,
+ unsigned char opmode)
+{
+ struct sk_buff *skb = NULL;
+ struct rsi_mac_frame *mgmt_frame;
+ unsigned short vap_id = 0;
+
+ rsi_dbg(MGMT_TX_ZONE, "%s: Sending VAP capabilities frame\n", __func__);
+
+ skb = dev_alloc_skb(MAX_MGMT_PKT_SIZE);
+ if (!skb) {
+ rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n",
+ __func__);
+ return -1;
+ }
+
+ memset(skb->data, 0, MAX_MGMT_PKT_SIZE);
+ mgmt_frame = (struct rsi_mac_frame *)skb->data;
+
+ mgmt_frame->desc_word[0] = cpu_to_le16((sizeof(mgmt_frame->u.vap_caps))|
+ (RSI_WIFI_MGMT_Q << 12));
+ mgmt_frame->desc_word[1] = cpu_to_le16(VAP_CAPABILITIES);
+ mgmt_frame->desc_word[4] = cpu_to_le16(opmode |
+ (common->channel_width << 8));
+ mgmt_frame->desc_word[7] = cpu_to_le16((vap_id << 8) |
+ (common->mac_id << 4) |
+ common->radio_id);
+
+ memcpy(mgmt_frame->u.vap_caps.mac_addr,
+ common->mac_addr,
+ IEEE80211_ADDR_LEN);
+ mgmt_frame->u.vap_caps.keep_alive_period = cpu_to_le16(90);
+ mgmt_frame->u.vap_caps.frag_threshold = cpu_to_le16(MAX_FRAG_LEN);
+
+ mgmt_frame->u.vap_caps.rts_threshold =
+ cpu_to_le16(common->rts_threshold);
+ mgmt_frame->u.vap_caps.default_mgmt_rate_bbpinfo = 0;
+ if (conf_is_ht40(&common->priv->hw->conf)) {
+ mgmt_frame->u.vap_caps.default_ctrl_rate_bbpinfo =
+ cpu_to_le16(RSI_RATE_6 | FULL40M_ENABLE << 16);
+ } else {
+ mgmt_frame->u.vap_caps.default_ctrl_rate_bbpinfo =
+ RSI_RATE_6;
+ }
+ mgmt_frame->u.vap_caps.default_data_rate_bbpinfo = cpu_to_le16(0);
+ mgmt_frame->u.vap_caps.beacon_interval = cpu_to_le16(200);
+ mgmt_frame->u.vap_caps.dtim_period = cpu_to_le16(4);
+
+ skb_put(skb, sizeof(mgmt_frame->u.vap_caps) + FRAME_DESC_SZ);
+
+ return rsi_send_internal_mgmt_frame(common, skb);
+}
+
+/**
+ * This function is used to load the keys within the firmware.
+ *
+ * @param common Pointer to the driver private structure.
+ * @param data Pointer to the key data.
+ * @param key_len Key length to be loaded.
+ * @param key_type Type of key: GROUP/PAIRWISE.
+ * @param key_id Key index.
+ * @param cipher Type of cipher used.
+ * @return 0 on success, -1 on failure.
+ */
+int rsi_hal_load_key(struct rsi_common *common,
+ unsigned char *data,
+ unsigned short key_len,
+ unsigned char key_type,
+ unsigned char key_id,
+ unsigned int cipher)
+{
+ struct sk_buff *skb = NULL;
+ struct rsi_mac_frame *mgmt_frame;
+ unsigned char key_t1 = 0;
+ unsigned short key_descriptor = 0;
+
+ rsi_dbg(MGMT_TX_ZONE, "%s: Sending load key frame\n", __func__);
+
+ skb = dev_alloc_skb(MAX_MGMT_PKT_SIZE);
+ if (!skb) {
+ rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n",
+ __func__);
+ return -1;
+ }
+
+ memset(skb->data, 0, MAX_MGMT_PKT_SIZE);
+ mgmt_frame = (struct rsi_mac_frame *)skb->data;
+
+ switch (key_type) {
+ case RSI_GROUP_KEY:
+ key_t1 = (1 << 1);
+ break;
+ case RSI_PAIRWISE_KEY:
+ key_t1 = (0 << 1);
+ if ((cipher != WLAN_CIPHER_SUITE_WEP40) &&
+ (cipher != WLAN_CIPHER_SUITE_WEP104))
+ key_id = 0;
+ break;
+ }
+
+ key_descriptor |= (key_t1 | BIT(13) | (key_id << 14));
+ 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 (cipher == WLAN_CIPHER_SUITE_TKIP)
+ key_descriptor |= BIT(5);
+ }
+
+ mgmt_frame->desc_word[0] = cpu_to_le16(sizeof(mgmt_frame->u.set_key) |
+ (RSI_WIFI_MGMT_Q << 12));
+ mgmt_frame->desc_word[1] = cpu_to_le16(SET_KEY_REQ);
+ mgmt_frame->desc_word[4] = cpu_to_le16(key_descriptor);
+
+ if ((cipher == WLAN_CIPHER_SUITE_WEP40) ||
+ (cipher == WLAN_CIPHER_SUITE_WEP104)) {
+ memcpy(&mgmt_frame->u.set_key.key[key_id][1],
+ data,
+ key_len * 2);
+ } else {
+ memcpy(&mgmt_frame->u.set_key.key[0][0], data, key_len);
+ }
+
+ memcpy(&mgmt_frame->u.set_key.tx_mic_key, &data[16], 8);
+ memcpy(&mgmt_frame->u.set_key.rx_mic_key, &data[24], 8);
+
+ skb_put(skb, sizeof(mgmt_frame->u.set_key) + FRAME_DESC_SZ);
+
+ return rsi_send_internal_mgmt_frame(common, skb);
+}
+
+/**
+ * This function sends bootup parameters to the firmware.
+ *
+ * @param common Pointer to the driver private structure.
+ * @return 0 on success, corresponding error code on failure.
+ */
+static unsigned char rsi_load_bootup_params(struct rsi_common *common)
+{
+ struct sk_buff *skb;
+ struct rsi_mac_frame *mgmt_frame;
+
+ rsi_dbg(MGMT_TX_ZONE, "%s: Sending boot params frame\n", __func__);
+ skb = dev_alloc_skb(MAX_MGMT_PKT_SIZE);
+ if (!skb) {
+ rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n",
+ __func__);
+ return -1;
+ }
+
+ memset(skb->data, 0, MAX_MGMT_PKT_SIZE);
+ mgmt_frame = (struct rsi_mac_frame *)skb->data;
+
+ rsi_dbg(MGMT_TX_ZONE, "%s:\n", __func__);
+
+ if (common->channel_width == BW_40MHZ) {
+ memcpy(&mgmt_frame->u.bootup_params,
+ &boot_params_40,
+ sizeof(struct bootup_params));
+ rsi_dbg(MGMT_TX_ZONE, "%s: Packet 40MHZ <=== %d\n", __func__,
+ UMAC_CLK_40BW);
+ mgmt_frame->desc_word[7] = (UMAC_CLK_40BW);
+ } else {
+ memcpy(&mgmt_frame->u.bootup_params,
+ &boot_params_20,
+ sizeof(struct bootup_params));
+ if (boot_params_20.valid != VALID_20) {
+ mgmt_frame->desc_word[7] = (UMAC_CLK_20BW);
+ rsi_dbg(MGMT_TX_ZONE,
+ "%s: Packet 20MHZ <=== %d\n", __func__,
+ UMAC_CLK_20BW);
+ } else {
+ mgmt_frame->desc_word[7] = (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
+ */
+ mgmt_frame->desc_word[0] = (sizeof(struct bootup_params) |
+ (RSI_WIFI_MGMT_Q << 12));
+ mgmt_frame->desc_word[1] = (BOOTUP_PARAMS_REQUEST);
+
+ skb_put(skb, sizeof(struct bootup_params) + FRAME_DESC_SZ);
+
+ return rsi_send_internal_mgmt_frame(common, skb);
+}
+
+/**
+ * This function prepares reset MAC request and sends a internal management
+ * frame to indicate it to firmware.
+ *
+ * @param 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(MAX_MGMT_PKT_SIZE);
+ if (!skb) {
+ rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n",
+ __func__);
+ return -1;
+ }
+
+ memset(skb->data, 0, MAX_MGMT_PKT_SIZE);
+ 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);
+}
+
+/**
+ * This function programs the channel.
+ *
+ * @param common Pointer to the driver private structure.
+ * @param channel Channel value to be set.
+ * @return 0 on success, corresponding error code on failure.
+ */
+int rsi_set_channel(struct rsi_common *common, unsigned short 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(MAX_MGMT_PKT_SIZE);
+ if (!skb) {
+ rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n",
+ __func__);
+ return -1;
+ }
+
+ memset(skb->data, 0, MAX_MGMT_PKT_SIZE);
+ mgmt_frame = (struct rsi_mac_frame *)skb->data;
+
+ if (common->band == IEEE80211_BAND_5GHZ) {
+ if ((channel >= 36) && (channel <= 64))
+ channel = ((channel - 32) / 4);
+ else if ((channel > 64) && (channel <= 140))
+ channel = ((channel - 102) / 4) + 8;
+ else if (channel >= 149)
+ channel = ((channel - 151) / 4) + 18;
+ else
+ return -1;
+ } else {
+ if (channel > 14) {
+ rsi_dbg(ERR_ZONE, "%s: Invalid chno %d, band = %d\n",
+ __func__, channel, common->band);
+ return 0;
+ }
+ }
+
+ mgmt_frame->desc_word[0] = ((sizeof(mgmt_frame->u.rf_prog_req)) |
+ (RSI_WIFI_MGMT_Q << 12));
+ mgmt_frame->desc_word[1] = (SCAN_REQUEST);
+ mgmt_frame->desc_word[4] = channel;
+
+ mgmt_frame->desc_word[7] = (PUT_BBP_RESET |
+ BBP_REG_WRITE |
+ (RSI_RF_TYPE << 4));
+
+
+ mgmt_frame->desc_word[4] = channel;
+ mgmt_frame->desc_word[5] = 0x01;
+
+ if (common->channel_width == BW_40MHZ)
+ mgmt_frame->desc_word[5] |= (0x1 << 8);
+
+ common->channel = channel;
+
+ skb_put(skb, sizeof(mgmt_frame->u.rf_prog_req) + FRAME_DESC_SZ);
+
+ return rsi_send_internal_mgmt_frame(common, skb);
+}
+
+/**
+ * This function is used to compare two integers
+ *
+ * @param pointer to the first integer
+ * @param 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)
+{
+ unsigned short int_a = *(const unsigned short *)(a);
+ unsigned short int_b = *(const unsigned short *)(b);
+
+ if (int_a > int_b)
+ return -1;
+
+ if (int_a < int_b)
+ return 1;
+
+ return 0;
+}
+
+/**
+ * This function is used to map the selected rates to hw rates
+ *
+ * @param the standard rate to be mapped
+ * @param offset that will be returned
+ * @return 0 if it is a mcs rate, else 1
+ */
+static bool rsi_map_rates(unsigned short rate, int *offset)
+{
+ int kk;
+ for (kk = 0; kk < ARRAY_SIZE(rsi_mcsrates); kk++) {
+ if (rate == mcs[kk]) {
+ *offset = kk;
+ return 0;
+ }
+ }
+
+ for (kk = 0; kk < ARRAY_SIZE(rsi_rates); kk++) {
+ if (rate == rsi_rates[kk].bitrate/5) {
+ *offset = kk;
+ break;
+ }
+ }
+ return 1;
+}
+
+/**
+ * This function sets rates for connection ,sends autorate request.
+ *
+ * @param 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_mac_frame *mgmt_frame;
+ int ii, jj, kk;
+ struct ieee80211_hw *hw = common->priv->hw;
+ unsigned char band = hw->conf.chandef.chan->band;
+ unsigned char num_supported_rates = 0;
+ unsigned char rate_offset = 0;
+ unsigned int rate_bitmap = common->bitrate_mask[band];
+
+ unsigned short *selected_rates, min_rate;
+
+ skb = dev_alloc_skb(MAX_MGMT_PKT_SIZE);
+ if (!skb) {
+ rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n",
+ __func__);
+ return -1;
+ }
+
+ selected_rates = kmalloc(2 * RSI_TBL_SZ, GFP_KERNEL);
+
+ memset(skb->data, 0, MAX_MGMT_PKT_SIZE);
+ memset(selected_rates, 0, 2 * RSI_TBL_SZ);
+
+ mgmt_frame = (struct rsi_mac_frame *)skb->data;
+
+ mgmt_frame->u.auto_rate.aarf_rssi = cpu_to_le16(((
+ (unsigned short)3 << 6) |
+ (unsigned short)(18 & 0x3f)));
+ mgmt_frame->u.auto_rate.collision_tolerance = cpu_to_le16(3);
+ mgmt_frame->u.auto_rate.failure_limit = cpu_to_le16(3);
+ mgmt_frame->u.auto_rate.initial_boundary = cpu_to_le16(3);
+ mgmt_frame->u.auto_rate.max_threshold_limt = cpu_to_le16(27);
+
+ mgmt_frame->desc_word[1] = cpu_to_le16(AUTO_RATE_IND);
+
+ if (common->channel_width == BW_40MHZ)
+ mgmt_frame->desc_word[7] |= cpu_to_le16(1);
+
+ if (band == IEEE80211_BAND_2GHZ)
+ min_rate = STD_RATE_01;
+ else
+ min_rate = STD_RATE_06;
+
+ for (ii = 0, jj = 0; ii < ARRAY_SIZE(rsi_rates); ii++) {
+ if (rate_bitmap & BIT(ii)) {
+ selected_rates[jj++] = (rsi_rates[ii].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);
+ }
+
+ if (rate_offset < (RSI_TBL_SZ / 2) - 1) {
+ for (ii = jj; ii < (RSI_TBL_SZ / 2); ii++) {
+ selected_rates[jj++] = min_rate;
+ rate_offset++;
+ }
+ }
+
+ sort(selected_rates, jj, sizeof(unsigned short), &rsi_compare, NULL);
+
+ /* mapping the rates to RSI rates */
+ for (ii = 0; ii < jj; ii++) {
+ if (rsi_map_rates(selected_rates[ii], &kk)) {
+ mgmt_frame->u.auto_rate.supported_rates[ii] =
+ cpu_to_le16(rsi_rates[kk].hw_value);
+ } else {
+ mgmt_frame->u.auto_rate.supported_rates[ii] =
+ cpu_to_le16(rsi_mcsrates[kk]);
+ }
+ }
+
+ /* loading HT rates in the bottom half of the AR table */
+ if (common->vif_info[0].is_ht) {
+ if (common->vif_info[0].sgi)
+ mgmt_frame->u.auto_rate.supported_rates[rate_offset++] =
+ cpu_to_le16(RSI_RATE_MCS7_SG);
+
+ 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)
+ mgmt_frame->u.auto_rate.supported_rates[ii++] =
+ cpu_to_le16(rsi_mcsrates[kk] | BIT(9));
+ mgmt_frame->u.auto_rate.supported_rates[ii] =
+ cpu_to_le16(rsi_mcsrates[kk--]);
+ }
+
+ for (; ii < RSI_TBL_SZ; ii++) {
+ mgmt_frame->u.auto_rate.supported_rates[ii] =
+ cpu_to_le16(rsi_mcsrates[0]);
+ }
+ }
+
+ mgmt_frame->u.auto_rate.num_supported_rates =
+ cpu_to_le16(num_supported_rates * 2);
+ mgmt_frame->u.auto_rate.moderate_rate_inx =
+ cpu_to_le16(num_supported_rates / 2);
+ mgmt_frame->desc_word[7] |= cpu_to_le16(0 << 8);
+ num_supported_rates *= 2;
+
+ mgmt_frame->desc_word[0] = cpu_to_le16((sizeof(mgmt_frame->u.auto_rate)
+ + num_supported_rates +
+ (RSI_WIFI_MGMT_Q << 12)));
+
+ skb_put(skb,
+ sizeof(mgmt_frame->u.auto_rate) + num_supported_rates +
+ FRAME_DESC_SZ);
+ kfree(selected_rates);
+
+ return rsi_send_internal_mgmt_frame(common, skb);
+}
+
+/**
+ * This function informs about bss status with the help of sta notify
+ * parameters by sending a internal management frame to firmware.
+ *
+ * @param common Pointer to the driver private structure.
+ * @param status Bss status type.
+ * @param bssid Bssid.
+ * @param qos_enable Qos is enabled.
+ * @param aid Aid (unique for all STA).
+ * @return None.
+ */
+void rsi_inform_bss_status(struct rsi_common *common,
+ unsigned char status,
+ const unsigned char *bssid,
+ unsigned char qos_enable,
+ unsigned short aid)
+{
+ if (status) {
+ rsi_hal_send_sta_notify_frame(common,
+ NL80211_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,
+ NL80211_IFTYPE_STATION,
+ STA_DISCONNECTED,
+ bssid,
+ qos_enable,
+ aid);
+ }
+ return;
+}
+
+/**
+ * This function send a frame to read the
+ * mac address from the eeprom.
+ *
+ * @param 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(MAX_MGMT_PKT_SIZE);
+ if (!skb) {
+ rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n",
+ __func__);
+ return -1;
+ }
+
+ memset(skb->data, 0, MAX_MGMT_PKT_SIZE);
+ 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);
+ /* 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 handles the confirm frames.
+ *
+ * @param common Pointer to the driver private structure.
+ * @param msg Pointer to received packet.
+ * @return 0 on success, -1 on failure.
+ */
+static int rsi_handle_ta_confirm_type(struct rsi_common *common,
+ unsigned char *msg)
+{
+ unsigned char 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(ERR_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) {
+ memcpy(common->mac_addr,
+ &msg[FRAME_DESC_SZ +
+ WLAN_HOST_MODE_LEN +
+ WLAN_MAC_MAGIC_WORD_LEN],
+ ETH_ALEN);
+ } 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(ERR_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 {
+ goto out;
+ }
+ 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 -1;
+}
+
+/**
+ * This function process the management packets recieved from the hardware.
+ *
+ * @param common Pointer to the driver private structure.
+ * @param msg Pointer to the received packet.
+ * @return 0 on success, -1 on failure.
+ */
+int rsi_mgmt_pkt_recv(struct rsi_common *common, unsigned char *msg)
+{
+ int msg_len = (*(unsigned short *)&msg[0] & 0x0fff);
+ unsigned short msg_type = (msg[2]);
+
+ 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) {
+ if (rsi_load_bootup_params(common))
+ return -1;
+ else
+ common->fsm_state = FSM_BOOT_PARAMS_SENT;
+ } else {
+ return -1;
+ }
+ } 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;
+}
--
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