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linux/drivers/net/wireless/rsi/rsi_91x_mgmt.c
Sanjay Konduri eeed833aaa rsi: add fix for corruption of auto rate table 
Auto rate table sent to firmware is getting corrupted
as memset to zeros is not done. Added memset to skb
data before filling auto rate table.

Signed-off-by: Sanjay Konduri <sanjay.konduri@redpinesignals.com>
Signed-off-by: Sushant Kumar Mishra <sushant.mishra@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-05-23 11:02:24 +03:00

1883 lines
52 KiB
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/**
* Copyright (c) 2014 Redpine Signals Inc.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <linux/etherdevice.h>
#include "rsi_mgmt.h"
#include "rsi_common.h"
#include "rsi_ps.h"
#include "rsi_hal.h"
static struct bootup_params boot_params_20 = {
.magic_number = cpu_to_le16(0x5aa5),
.crystal_good_time = 0x0,
.valid = cpu_to_le32(VALID_20),
.reserved_for_valids = 0x0,
.bootup_mode_info = 0x0,
.digital_loop_back_params = 0x0,
.rtls_timestamp_en = 0x0,
.host_spi_intr_cfg = 0x0,
.device_clk_info = {{
.pll_config_g = {
.tapll_info_g = {
.pll_reg_1 = cpu_to_le16((TA_PLL_N_VAL_20 << 8)|
(TA_PLL_M_VAL_20)),
.pll_reg_2 = cpu_to_le16(TA_PLL_P_VAL_20),
},
.pll960_info_g = {
.pll_reg_1 = cpu_to_le16((PLL960_P_VAL_20 << 8)|
(PLL960_N_VAL_20)),
.pll_reg_2 = cpu_to_le16(PLL960_M_VAL_20),
.pll_reg_3 = 0x0,
},
.afepll_info_g = {
.pll_reg = cpu_to_le16(0x9f0),
}
},
.switch_clk_g = {
.switch_clk_info = cpu_to_le16(0xb),
.bbp_lmac_clk_reg_val = cpu_to_le16(0x111),
.umac_clock_reg_config = cpu_to_le16(0x48),
.qspi_uart_clock_reg_config = cpu_to_le16(0x1211)
}
},
{
.pll_config_g = {
.tapll_info_g = {
.pll_reg_1 = cpu_to_le16((TA_PLL_N_VAL_20 << 8)|
(TA_PLL_M_VAL_20)),
.pll_reg_2 = cpu_to_le16(TA_PLL_P_VAL_20),
},
.pll960_info_g = {
.pll_reg_1 = cpu_to_le16((PLL960_P_VAL_20 << 8)|
(PLL960_N_VAL_20)),
.pll_reg_2 = cpu_to_le16(PLL960_M_VAL_20),
.pll_reg_3 = 0x0,
},
.afepll_info_g = {
.pll_reg = cpu_to_le16(0x9f0),
}
},
.switch_clk_g = {
.switch_clk_info = 0x0,
.bbp_lmac_clk_reg_val = 0x0,
.umac_clock_reg_config = 0x0,
.qspi_uart_clock_reg_config = 0x0
}
},
{
.pll_config_g = {
.tapll_info_g = {
.pll_reg_1 = cpu_to_le16((TA_PLL_N_VAL_20 << 8)|
(TA_PLL_M_VAL_20)),
.pll_reg_2 = cpu_to_le16(TA_PLL_P_VAL_20),
},
.pll960_info_g = {
.pll_reg_1 = cpu_to_le16((PLL960_P_VAL_20 << 8)|
(PLL960_N_VAL_20)),
.pll_reg_2 = cpu_to_le16(PLL960_M_VAL_20),
.pll_reg_3 = 0x0,
},
.afepll_info_g = {
.pll_reg = cpu_to_le16(0x9f0),
}
},
.switch_clk_g = {
.switch_clk_info = 0x0,
.bbp_lmac_clk_reg_val = 0x0,
.umac_clock_reg_config = 0x0,
.qspi_uart_clock_reg_config = 0x0
}
} },
.buckboost_wakeup_cnt = 0x0,
.pmu_wakeup_wait = 0x0,
.shutdown_wait_time = 0x0,
.pmu_slp_clkout_sel = 0x0,
.wdt_prog_value = 0x0,
.wdt_soc_rst_delay = 0x0,
.dcdc_operation_mode = 0x0,
.soc_reset_wait_cnt = 0x0,
.waiting_time_at_fresh_sleep = 0x0,
.max_threshold_to_avoid_sleep = 0x0,
.beacon_resedue_alg_en = 0,
};
static struct bootup_params boot_params_40 = {
.magic_number = cpu_to_le16(0x5aa5),
.crystal_good_time = 0x0,
.valid = cpu_to_le32(VALID_40),
.reserved_for_valids = 0x0,
.bootup_mode_info = 0x0,
.digital_loop_back_params = 0x0,
.rtls_timestamp_en = 0x0,
.host_spi_intr_cfg = 0x0,
.device_clk_info = {{
.pll_config_g = {
.tapll_info_g = {
.pll_reg_1 = cpu_to_le16((TA_PLL_N_VAL_40 << 8)|
(TA_PLL_M_VAL_40)),
.pll_reg_2 = cpu_to_le16(TA_PLL_P_VAL_40),
},
.pll960_info_g = {
.pll_reg_1 = cpu_to_le16((PLL960_P_VAL_40 << 8)|
(PLL960_N_VAL_40)),
.pll_reg_2 = cpu_to_le16(PLL960_M_VAL_40),
.pll_reg_3 = 0x0,
},
.afepll_info_g = {
.pll_reg = cpu_to_le16(0x9f0),
}
},
.switch_clk_g = {
.switch_clk_info = cpu_to_le16(0x09),
.bbp_lmac_clk_reg_val = cpu_to_le16(0x1121),
.umac_clock_reg_config = cpu_to_le16(0x48),
.qspi_uart_clock_reg_config = cpu_to_le16(0x1211)
}
},
{
.pll_config_g = {
.tapll_info_g = {
.pll_reg_1 = cpu_to_le16((TA_PLL_N_VAL_40 << 8)|
(TA_PLL_M_VAL_40)),
.pll_reg_2 = cpu_to_le16(TA_PLL_P_VAL_40),
},
.pll960_info_g = {
.pll_reg_1 = cpu_to_le16((PLL960_P_VAL_40 << 8)|
(PLL960_N_VAL_40)),
.pll_reg_2 = cpu_to_le16(PLL960_M_VAL_40),
.pll_reg_3 = 0x0,
},
.afepll_info_g = {
.pll_reg = cpu_to_le16(0x9f0),
}
},
.switch_clk_g = {
.switch_clk_info = 0x0,
.bbp_lmac_clk_reg_val = 0x0,
.umac_clock_reg_config = 0x0,
.qspi_uart_clock_reg_config = 0x0
}
},
{
.pll_config_g = {
.tapll_info_g = {
.pll_reg_1 = cpu_to_le16((TA_PLL_N_VAL_40 << 8)|
(TA_PLL_M_VAL_40)),
.pll_reg_2 = cpu_to_le16(TA_PLL_P_VAL_40),
},
.pll960_info_g = {
.pll_reg_1 = cpu_to_le16((PLL960_P_VAL_40 << 8)|
(PLL960_N_VAL_40)),
.pll_reg_2 = cpu_to_le16(PLL960_M_VAL_40),
.pll_reg_3 = 0x0,
},
.afepll_info_g = {
.pll_reg = cpu_to_le16(0x9f0),
}
},
.switch_clk_g = {
.switch_clk_info = 0x0,
.bbp_lmac_clk_reg_val = 0x0,
.umac_clock_reg_config = 0x0,
.qspi_uart_clock_reg_config = 0x0
}
} },
.buckboost_wakeup_cnt = 0x0,
.pmu_wakeup_wait = 0x0,
.shutdown_wait_time = 0x0,
.pmu_slp_clkout_sel = 0x0,
.wdt_prog_value = 0x0,
.wdt_soc_rst_delay = 0x0,
.dcdc_operation_mode = 0x0,
.soc_reset_wait_cnt = 0x0,
.waiting_time_at_fresh_sleep = 0x0,
.max_threshold_to_avoid_sleep = 0x0,
.beacon_resedue_alg_en = 0,
};
static u16 mcs[] = {13, 26, 39, 52, 78, 104, 117, 130};
/**
* rsi_set_default_parameters() - This function sets default parameters.
* @common: Pointer to the driver private structure.
*
* Return: none
*/
static void rsi_set_default_parameters(struct rsi_common *common)
{
common->band = NL80211_BAND_2GHZ;
common->channel_width = BW_20MHZ;
common->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
common->channel = 1;
common->min_rate = 0xffff;
common->fsm_state = FSM_CARD_NOT_READY;
common->iface_down = true;
common->endpoint = EP_2GHZ_20MHZ;
common->driver_mode = 1; /* End to end mode */
common->lp_ps_handshake_mode = 0; /* Default no handShake mode*/
common->ulp_ps_handshake_mode = 2; /* Default PKT handShake mode*/
common->rf_power_val = 0; /* Default 1.9V */
common->wlan_rf_power_mode = 0;
common->obm_ant_sel_val = 2;
common->beacon_interval = RSI_BEACON_INTERVAL;
common->dtim_cnt = RSI_DTIM_COUNT;
}
/**
* rsi_set_contention_vals() - This function sets the contention values for the
* backoff procedure.
* @common: Pointer to the driver private structure.
*
* Return: None.
*/
static void rsi_set_contention_vals(struct rsi_common *common)
{
u8 ii = 0;
for (; ii < NUM_EDCA_QUEUES; ii++) {
common->tx_qinfo[ii].wme_params =
(((common->edca_params[ii].cw_min / 2) +
(common->edca_params[ii].aifs)) *
WMM_SHORT_SLOT_TIME + SIFS_DURATION);
common->tx_qinfo[ii].weight = common->tx_qinfo[ii].wme_params;
common->tx_qinfo[ii].pkt_contended = 0;
}
}
/**
* rsi_send_internal_mgmt_frame() - This function sends management frames to
* firmware.Also schedules packet to queue
* for transmission.
* @common: Pointer to the driver private structure.
* @skb: Pointer to the socket buffer structure.
*
* Return: 0 on success, -1 on failure.
*/
static int rsi_send_internal_mgmt_frame(struct rsi_common *common,
struct sk_buff *skb)
{
struct skb_info *tx_params;
struct rsi_cmd_desc *desc;
if (skb == NULL) {
rsi_dbg(ERR_ZONE, "%s: Unable to allocate skb\n", __func__);
return -ENOMEM;
}
desc = (struct rsi_cmd_desc *)skb->data;
desc->desc_dword0.len_qno |= cpu_to_le16(DESC_IMMEDIATE_WAKEUP);
skb->priority = MGMT_SOFT_Q;
tx_params = (struct skb_info *)&IEEE80211_SKB_CB(skb)->driver_data;
tx_params->flags |= INTERNAL_MGMT_PKT;
skb_queue_tail(&common->tx_queue[MGMT_SOFT_Q], skb);
rsi_set_event(&common->tx_thread.event);
return 0;
}
/**
* rsi_load_radio_caps() - This function is used to send radio capabilities
* values to firmware.
* @common: Pointer to the driver private structure.
*
* Return: 0 on success, corresponding negative error code on failure.
*/
static int rsi_load_radio_caps(struct rsi_common *common)
{
struct rsi_radio_caps *radio_caps;
struct rsi_hw *adapter = common->priv;
u16 inx = 0;
u8 ii;
u8 radio_id = 0;
u16 gc[20] = {0xf0, 0xf0, 0xf0, 0xf0,
0xf0, 0xf0, 0xf0, 0xf0,
0xf0, 0xf0, 0xf0, 0xf0,
0xf0, 0xf0, 0xf0, 0xf0,
0xf0, 0xf0, 0xf0, 0xf0};
struct sk_buff *skb;
u16 frame_len = sizeof(struct rsi_radio_caps);
rsi_dbg(INFO_ZONE, "%s: Sending rate symbol req frame\n", __func__);
skb = dev_alloc_skb(frame_len);
if (!skb) {
rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n",
__func__);
return -ENOMEM;
}
memset(skb->data, 0, frame_len);
radio_caps = (struct rsi_radio_caps *)skb->data;
radio_caps->desc_dword0.frame_type = RADIO_CAPABILITIES;
radio_caps->channel_num = common->channel;
radio_caps->rf_model = RSI_RF_TYPE;
radio_caps->radio_cfg_info = RSI_LMAC_CLOCK_80MHZ;
if (common->channel_width == BW_40MHZ) {
radio_caps->radio_cfg_info |= RSI_ENABLE_40MHZ;
if (common->fsm_state == FSM_MAC_INIT_DONE) {
struct ieee80211_hw *hw = adapter->hw;
struct ieee80211_conf *conf = &hw->conf;
if (conf_is_ht40_plus(conf)) {
radio_caps->radio_cfg_info =
RSI_CMDDESC_LOWER_20_ENABLE;
radio_caps->radio_info =
RSI_CMDDESC_LOWER_20_ENABLE;
} else if (conf_is_ht40_minus(conf)) {
radio_caps->radio_cfg_info =
RSI_CMDDESC_UPPER_20_ENABLE;
radio_caps->radio_info =
RSI_CMDDESC_UPPER_20_ENABLE;
} else {
radio_caps->radio_cfg_info =
RSI_CMDDESC_40MHZ;
radio_caps->radio_info =
RSI_CMDDESC_FULL_40_ENABLE;
}
}
}
radio_caps->radio_info |= radio_id;
radio_caps->sifs_tx_11n = cpu_to_le16(SIFS_TX_11N_VALUE);
radio_caps->sifs_tx_11b = cpu_to_le16(SIFS_TX_11B_VALUE);
radio_caps->slot_rx_11n = cpu_to_le16(SHORT_SLOT_VALUE);
radio_caps->ofdm_ack_tout = cpu_to_le16(OFDM_ACK_TOUT_VALUE);
radio_caps->cck_ack_tout = cpu_to_le16(CCK_ACK_TOUT_VALUE);
radio_caps->preamble_type = cpu_to_le16(LONG_PREAMBLE);
for (ii = 0; ii < MAX_HW_QUEUES; ii++) {
radio_caps->qos_params[ii].cont_win_min_q = cpu_to_le16(3);
radio_caps->qos_params[ii].cont_win_max_q = cpu_to_le16(0x3f);
radio_caps->qos_params[ii].aifsn_val_q = cpu_to_le16(2);
radio_caps->qos_params[ii].txop_q = 0;
}
for (ii = 0; ii < NUM_EDCA_QUEUES; ii++) {
radio_caps->qos_params[ii].cont_win_min_q =
cpu_to_le16(common->edca_params[ii].cw_min);
radio_caps->qos_params[ii].cont_win_max_q =
cpu_to_le16(common->edca_params[ii].cw_max);
radio_caps->qos_params[ii].aifsn_val_q =
cpu_to_le16((common->edca_params[ii].aifs) << 8);
radio_caps->qos_params[ii].txop_q =
cpu_to_le16(common->edca_params[ii].txop);
}
radio_caps->qos_params[BROADCAST_HW_Q].txop_q = cpu_to_le16(0xffff);
radio_caps->qos_params[MGMT_HW_Q].txop_q = 0;
radio_caps->qos_params[BEACON_HW_Q].txop_q = cpu_to_le16(0xffff);
memcpy(&common->rate_pwr[0], &gc[0], 40);
for (ii = 0; ii < 20; ii++)
radio_caps->gcpd_per_rate[inx++] =
cpu_to_le16(common->rate_pwr[ii] & 0x00FF);
rsi_set_len_qno(&radio_caps->desc_dword0.len_qno,
(frame_len - FRAME_DESC_SZ), RSI_WIFI_MGMT_Q);
skb_put(skb, frame_len);
return rsi_send_internal_mgmt_frame(common, skb);
}
/**
* rsi_mgmt_pkt_to_core() - This function is the entry point for Mgmt module.
* @common: Pointer to the driver private structure.
* @msg: Pointer to received packet.
* @msg_len: Length of the recieved packet.
* @type: Type of recieved packet.
*
* Return: 0 on success, -1 on failure.
*/
static int rsi_mgmt_pkt_to_core(struct rsi_common *common,
u8 *msg,
s32 msg_len)
{
struct rsi_hw *adapter = common->priv;
struct ieee80211_tx_info *info;
struct skb_info *rx_params;
u8 pad_bytes = msg[4];
struct sk_buff *skb;
if (!adapter->sc_nvifs)
return -ENOLINK;
msg_len -= pad_bytes;
if (msg_len <= 0) {
rsi_dbg(MGMT_RX_ZONE,
"%s: Invalid rx msg of len = %d\n",
__func__, msg_len);
return -EINVAL;
}
skb = dev_alloc_skb(msg_len);
if (!skb)
return -ENOMEM;
skb_put_data(skb,
(u8 *)(msg + FRAME_DESC_SZ + pad_bytes),
msg_len);
info = IEEE80211_SKB_CB(skb);
rx_params = (struct skb_info *)info->driver_data;
rx_params->rssi = rsi_get_rssi(msg);
rx_params->channel = rsi_get_channel(msg);
rsi_indicate_pkt_to_os(common, skb);
return 0;
}
/**
* rsi_hal_send_sta_notify_frame() - This function sends the station notify
* frame to firmware.
* @common: Pointer to the driver private structure.
* @opmode: Operating mode of device.
* @notify_event: Notification about station connection.
* @bssid: bssid.
* @qos_enable: Qos is enabled.
* @aid: Aid (unique for all STA).
*
* Return: status: 0 on success, corresponding negative error code on failure.
*/
int rsi_hal_send_sta_notify_frame(struct rsi_common *common, enum opmode opmode,
u8 notify_event, const unsigned char *bssid,
u8 qos_enable, u16 aid, u16 sta_id,
struct ieee80211_vif *vif)
{
struct sk_buff *skb = NULL;
struct rsi_peer_notify *peer_notify;
u16 vap_id = ((struct vif_priv *)vif->drv_priv)->vap_id;
int status;
u16 frame_len = sizeof(struct rsi_peer_notify);
rsi_dbg(MGMT_TX_ZONE, "%s: Sending sta notify frame\n", __func__);
skb = dev_alloc_skb(frame_len);
if (!skb) {
rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n",
__func__);
return -ENOMEM;
}
memset(skb->data, 0, frame_len);
peer_notify = (struct rsi_peer_notify *)skb->data;
if (opmode == RSI_OPMODE_STA)
peer_notify->command = cpu_to_le16(PEER_TYPE_AP << 1);
else if (opmode == RSI_OPMODE_AP)
peer_notify->command = cpu_to_le16(PEER_TYPE_STA << 1);
switch (notify_event) {
case STA_CONNECTED:
peer_notify->command |= cpu_to_le16(RSI_ADD_PEER);
break;
case STA_DISCONNECTED:
peer_notify->command |= cpu_to_le16(RSI_DELETE_PEER);
break;
default:
break;
}
peer_notify->command |= cpu_to_le16((aid & 0xfff) << 4);
ether_addr_copy(peer_notify->mac_addr, bssid);
peer_notify->mpdu_density = cpu_to_le16(RSI_MPDU_DENSITY);
peer_notify->sta_flags = cpu_to_le32((qos_enable) ? 1 : 0);
rsi_set_len_qno(&peer_notify->desc.desc_dword0.len_qno,
(frame_len - FRAME_DESC_SZ),
RSI_WIFI_MGMT_Q);
peer_notify->desc.desc_dword0.frame_type = PEER_NOTIFY;
peer_notify->desc.desc_dword3.qid_tid = sta_id;
peer_notify->desc.desc_dword3.sta_id = vap_id;
skb_put(skb, frame_len);
status = rsi_send_internal_mgmt_frame(common, skb);
if ((vif->type == NL80211_IFTYPE_STATION) &&
(!status && qos_enable)) {
rsi_set_contention_vals(common);
status = rsi_load_radio_caps(common);
}
return status;
}
/**
* rsi_send_aggregation_params_frame() - This function sends the ampdu
* indication frame to firmware.
* @common: Pointer to the driver private structure.
* @tid: traffic identifier.
* @ssn: ssn.
* @buf_size: buffer size.
* @event: notification about station connection.
*
* Return: 0 on success, corresponding negative error code on failure.
*/
int rsi_send_aggregation_params_frame(struct rsi_common *common,
u16 tid,
u16 ssn,
u8 buf_size,
u8 event,
u8 sta_id)
{
struct sk_buff *skb = NULL;
struct rsi_aggr_params *aggr_params;
u16 frame_len = sizeof(struct rsi_aggr_params);
skb = dev_alloc_skb(frame_len);
if (!skb) {
rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n",
__func__);
return -ENOMEM;
}
memset(skb->data, 0, frame_len);
aggr_params = (struct rsi_aggr_params *)skb->data;
rsi_dbg(MGMT_TX_ZONE, "%s: Sending AMPDU indication frame\n", __func__);
rsi_set_len_qno(&aggr_params->desc_dword0.len_qno, 0, RSI_WIFI_MGMT_Q);
aggr_params->desc_dword0.frame_type = AMPDU_IND;
aggr_params->aggr_params = tid & RSI_AGGR_PARAMS_TID_MASK;
aggr_params->peer_id = sta_id;
if (event == STA_TX_ADDBA_DONE) {
aggr_params->seq_start = cpu_to_le16(ssn);
aggr_params->baw_size = cpu_to_le16(buf_size);
aggr_params->aggr_params |= RSI_AGGR_PARAMS_START;
} else if (event == STA_RX_ADDBA_DONE) {
aggr_params->seq_start = cpu_to_le16(ssn);
aggr_params->aggr_params |= (RSI_AGGR_PARAMS_START |
RSI_AGGR_PARAMS_RX_AGGR);
} else if (event == STA_RX_DELBA) {
aggr_params->aggr_params |= RSI_AGGR_PARAMS_RX_AGGR;
}
skb_put(skb, frame_len);
return rsi_send_internal_mgmt_frame(common, skb);
}
/**
* rsi_program_bb_rf() - This function starts base band and RF programming.
* This is called after initial configurations are done.
* @common: Pointer to the driver private structure.
*
* Return: 0 on success, corresponding negative error code on failure.
*/
static int rsi_program_bb_rf(struct rsi_common *common)
{
struct sk_buff *skb;
struct rsi_bb_rf_prog *bb_rf_prog;
u16 frame_len = sizeof(struct rsi_bb_rf_prog);
rsi_dbg(MGMT_TX_ZONE, "%s: Sending program BB/RF frame\n", __func__);
skb = dev_alloc_skb(frame_len);
if (!skb) {
rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n",
__func__);
return -ENOMEM;
}
memset(skb->data, 0, frame_len);
bb_rf_prog = (struct rsi_bb_rf_prog *)skb->data;
rsi_set_len_qno(&bb_rf_prog->desc_dword0.len_qno, 0, RSI_WIFI_MGMT_Q);
bb_rf_prog->desc_dword0.frame_type = BBP_PROG_IN_TA;
bb_rf_prog->endpoint = common->endpoint;
bb_rf_prog->rf_power_mode = common->wlan_rf_power_mode;
if (common->rf_reset) {
bb_rf_prog->flags = cpu_to_le16(RF_RESET_ENABLE);
rsi_dbg(MGMT_TX_ZONE, "%s: ===> RF RESET REQUEST SENT <===\n",
__func__);
common->rf_reset = 0;
}
common->bb_rf_prog_count = 1;
bb_rf_prog->flags |= cpu_to_le16(PUT_BBP_RESET | BBP_REG_WRITE |
(RSI_RF_TYPE << 4));
skb_put(skb, frame_len);
return rsi_send_internal_mgmt_frame(common, skb);
}
/**
* rsi_set_vap_capabilities() - This function send vap capability to firmware.
* @common: Pointer to the driver private structure.
* @opmode: Operating mode of device.
*
* Return: 0 on success, corresponding negative error code on failure.
*/
int rsi_set_vap_capabilities(struct rsi_common *common,
enum opmode mode,
u8 *mac_addr,
u8 vap_id,
u8 vap_status)
{
struct sk_buff *skb = NULL;
struct rsi_vap_caps *vap_caps;
struct rsi_hw *adapter = common->priv;
struct ieee80211_hw *hw = adapter->hw;
struct ieee80211_conf *conf = &hw->conf;
u16 frame_len = sizeof(struct rsi_vap_caps);
rsi_dbg(MGMT_TX_ZONE, "%s: Sending VAP capabilities frame\n", __func__);
skb = dev_alloc_skb(frame_len);
if (!skb) {
rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n",
__func__);
return -ENOMEM;
}
memset(skb->data, 0, frame_len);
vap_caps = (struct rsi_vap_caps *)skb->data;
rsi_set_len_qno(&vap_caps->desc_dword0.len_qno,
(frame_len - FRAME_DESC_SZ), RSI_WIFI_MGMT_Q);
vap_caps->desc_dword0.frame_type = VAP_CAPABILITIES;
vap_caps->status = vap_status;
vap_caps->vif_type = mode;
vap_caps->channel_bw = common->channel_width;
vap_caps->vap_id = vap_id;
vap_caps->radioid_macid = ((common->mac_id & 0xf) << 4) |
(common->radio_id & 0xf);
memcpy(vap_caps->mac_addr, mac_addr, IEEE80211_ADDR_LEN);
vap_caps->keep_alive_period = cpu_to_le16(90);
vap_caps->frag_threshold = cpu_to_le16(IEEE80211_MAX_FRAG_THRESHOLD);
vap_caps->rts_threshold = cpu_to_le16(common->rts_threshold);
if (common->band == NL80211_BAND_5GHZ) {
vap_caps->default_ctrl_rate = cpu_to_le16(RSI_RATE_6);
vap_caps->default_mgmt_rate = cpu_to_le32(RSI_RATE_6);
} else {
vap_caps->default_ctrl_rate = cpu_to_le16(RSI_RATE_1);
vap_caps->default_mgmt_rate = cpu_to_le32(RSI_RATE_1);
}
if (conf_is_ht40(conf)) {
if (conf_is_ht40_minus(conf))
vap_caps->ctrl_rate_flags =
cpu_to_le16(UPPER_20_ENABLE);
else if (conf_is_ht40_plus(conf))
vap_caps->ctrl_rate_flags =
cpu_to_le16(LOWER_20_ENABLE);
else
vap_caps->ctrl_rate_flags =
cpu_to_le16(FULL40M_ENABLE);
}
vap_caps->default_data_rate = 0;
vap_caps->beacon_interval = cpu_to_le16(common->beacon_interval);
vap_caps->dtim_period = cpu_to_le16(common->dtim_cnt);
skb_put(skb, frame_len);
return rsi_send_internal_mgmt_frame(common, skb);
}
/**
* rsi_hal_load_key() - This function is used to load keys within the firmware.
* @common: Pointer to the driver private structure.
* @data: Pointer to the key data.
* @key_len: Key length to be loaded.
* @key_type: Type of key: GROUP/PAIRWISE.
* @key_id: Key index.
* @cipher: Type of cipher used.
*
* Return: 0 on success, -1 on failure.
*/
int rsi_hal_load_key(struct rsi_common *common,
u8 *data,
u16 key_len,
u8 key_type,
u8 key_id,
u32 cipher,
s16 sta_id,
struct ieee80211_vif *vif)
{
struct sk_buff *skb = NULL;
struct rsi_set_key *set_key;
u16 key_descriptor = 0;
u16 frame_len = sizeof(struct rsi_set_key);
rsi_dbg(MGMT_TX_ZONE, "%s: Sending load key frame\n", __func__);
skb = dev_alloc_skb(frame_len);
if (!skb) {
rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n",
__func__);
return -ENOMEM;
}
memset(skb->data, 0, frame_len);
set_key = (struct rsi_set_key *)skb->data;
if (key_type == RSI_GROUP_KEY) {
key_descriptor = RSI_KEY_TYPE_BROADCAST;
if (vif->type == NL80211_IFTYPE_AP)
key_descriptor |= RSI_KEY_MODE_AP;
}
if ((cipher == WLAN_CIPHER_SUITE_WEP40) ||
(cipher == WLAN_CIPHER_SUITE_WEP104)) {
key_id = 0;
key_descriptor |= RSI_WEP_KEY;
if (key_len >= 13)
key_descriptor |= RSI_WEP_KEY_104;
} else if (cipher != KEY_TYPE_CLEAR) {
key_descriptor |= RSI_CIPHER_WPA;
if (cipher == WLAN_CIPHER_SUITE_TKIP)
key_descriptor |= RSI_CIPHER_TKIP;
}
key_descriptor |= RSI_PROTECT_DATA_FRAMES;
key_descriptor |= ((key_id << RSI_KEY_ID_OFFSET) & RSI_KEY_ID_MASK);
rsi_set_len_qno(&set_key->desc_dword0.len_qno,
(frame_len - FRAME_DESC_SZ), RSI_WIFI_MGMT_Q);
set_key->desc_dword0.frame_type = SET_KEY_REQ;
set_key->key_desc = cpu_to_le16(key_descriptor);
set_key->sta_id = sta_id;
if (data) {
if ((cipher == WLAN_CIPHER_SUITE_WEP40) ||
(cipher == WLAN_CIPHER_SUITE_WEP104)) {
memcpy(&set_key->key[key_id][1], data, key_len * 2);
} else {
memcpy(&set_key->key[0][0], data, key_len);
}
memcpy(set_key->tx_mic_key, &data[16], 8);
memcpy(set_key->rx_mic_key, &data[24], 8);
} else {
memset(&set_key[FRAME_DESC_SZ], 0, frame_len - FRAME_DESC_SZ);
}
skb_put(skb, frame_len);
return rsi_send_internal_mgmt_frame(common, skb);
}
/*
* This function sends the common device configuration parameters to device.
* This frame includes the useful information to make device works on
* specific operating mode.
*/
static int rsi_send_common_dev_params(struct rsi_common *common)
{
struct sk_buff *skb;
u16 frame_len;
struct rsi_config_vals *dev_cfgs;
frame_len = sizeof(struct rsi_config_vals);
rsi_dbg(MGMT_TX_ZONE, "Sending common device config params\n");
skb = dev_alloc_skb(frame_len);
if (!skb) {
rsi_dbg(ERR_ZONE, "%s: Unable to allocate skb\n", __func__);
return -ENOMEM;
}
memset(skb->data, 0, frame_len);
dev_cfgs = (struct rsi_config_vals *)skb->data;
memset(dev_cfgs, 0, (sizeof(struct rsi_config_vals)));
rsi_set_len_qno(&dev_cfgs->len_qno, (frame_len - FRAME_DESC_SZ),
RSI_COEX_Q);
dev_cfgs->pkt_type = COMMON_DEV_CONFIG;
dev_cfgs->lp_ps_handshake = common->lp_ps_handshake_mode;
dev_cfgs->ulp_ps_handshake = common->ulp_ps_handshake_mode;
dev_cfgs->unused_ulp_gpio = RSI_UNUSED_ULP_GPIO_BITMAP;
dev_cfgs->unused_soc_gpio_bitmap =
cpu_to_le32(RSI_UNUSED_SOC_GPIO_BITMAP);
dev_cfgs->opermode = common->oper_mode;
dev_cfgs->wlan_rf_pwr_mode = common->wlan_rf_power_mode;
dev_cfgs->driver_mode = common->driver_mode;
dev_cfgs->region_code = NL80211_DFS_FCC;
dev_cfgs->antenna_sel_val = common->obm_ant_sel_val;
skb_put(skb, frame_len);
return rsi_send_internal_mgmt_frame(common, skb);
}
/*
* rsi_load_bootup_params() - This function send bootup params to the firmware.
* @common: Pointer to the driver private structure.
*
* Return: 0 on success, corresponding error code on failure.
*/
static int rsi_load_bootup_params(struct rsi_common *common)
{
struct sk_buff *skb;
struct rsi_boot_params *boot_params;
rsi_dbg(MGMT_TX_ZONE, "%s: Sending boot params frame\n", __func__);
skb = dev_alloc_skb(sizeof(struct rsi_boot_params));
if (!skb) {
rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n",
__func__);
return -ENOMEM;
}
memset(skb->data, 0, sizeof(struct rsi_boot_params));
boot_params = (struct rsi_boot_params *)skb->data;
rsi_dbg(MGMT_TX_ZONE, "%s:\n", __func__);
if (common->channel_width == BW_40MHZ) {
memcpy(&boot_params->bootup_params,
&boot_params_40,
sizeof(struct bootup_params));
rsi_dbg(MGMT_TX_ZONE, "%s: Packet 40MHZ <=== %d\n", __func__,
UMAC_CLK_40BW);
boot_params->desc_word[7] = cpu_to_le16(UMAC_CLK_40BW);
} else {
memcpy(&boot_params->bootup_params,
&boot_params_20,
sizeof(struct bootup_params));
if (boot_params_20.valid != cpu_to_le32(VALID_20)) {
boot_params->desc_word[7] = cpu_to_le16(UMAC_CLK_20BW);
rsi_dbg(MGMT_TX_ZONE,
"%s: Packet 20MHZ <=== %d\n", __func__,
UMAC_CLK_20BW);
} else {
boot_params->desc_word[7] = cpu_to_le16(UMAC_CLK_40MHZ);
rsi_dbg(MGMT_TX_ZONE,
"%s: Packet 20MHZ <=== %d\n", __func__,
UMAC_CLK_40MHZ);
}
}
/**
* Bit{0:11} indicates length of the Packet
* Bit{12:15} indicates host queue number
*/
boot_params->desc_word[0] = cpu_to_le16(sizeof(struct bootup_params) |
(RSI_WIFI_MGMT_Q << 12));
boot_params->desc_word[1] = cpu_to_le16(BOOTUP_PARAMS_REQUEST);
skb_put(skb, sizeof(struct rsi_boot_params));
return rsi_send_internal_mgmt_frame(common, skb);
}
/**
* rsi_send_reset_mac() - This function prepares reset MAC request and sends an
* internal management frame to indicate it to firmware.
* @common: Pointer to the driver private structure.
*
* Return: 0 on success, corresponding error code on failure.
*/
static int rsi_send_reset_mac(struct rsi_common *common)
{
struct sk_buff *skb;
struct rsi_mac_frame *mgmt_frame;
rsi_dbg(MGMT_TX_ZONE, "%s: Sending reset MAC frame\n", __func__);
skb = dev_alloc_skb(FRAME_DESC_SZ);
if (!skb) {
rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n",
__func__);
return -ENOMEM;
}
memset(skb->data, 0, FRAME_DESC_SZ);
mgmt_frame = (struct rsi_mac_frame *)skb->data;
mgmt_frame->desc_word[0] = cpu_to_le16(RSI_WIFI_MGMT_Q << 12);
mgmt_frame->desc_word[1] = cpu_to_le16(RESET_MAC_REQ);
mgmt_frame->desc_word[4] = cpu_to_le16(RETRY_COUNT << 8);
skb_put(skb, FRAME_DESC_SZ);
return rsi_send_internal_mgmt_frame(common, skb);
}
/**
* rsi_band_check() - This function programs the band
* @common: Pointer to the driver private structure.
*
* Return: 0 on success, corresponding error code on failure.
*/
int rsi_band_check(struct rsi_common *common,
struct ieee80211_channel *curchan)
{
struct rsi_hw *adapter = common->priv;
struct ieee80211_hw *hw = adapter->hw;
u8 prev_bw = common->channel_width;
u8 prev_ep = common->endpoint;
int status = 0;
if (common->band != curchan->band) {
common->rf_reset = 1;
common->band = curchan->band;
}
if ((hw->conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT) ||
(hw->conf.chandef.width == NL80211_CHAN_WIDTH_20))
common->channel_width = BW_20MHZ;
else
common->channel_width = BW_40MHZ;
if (common->band == NL80211_BAND_2GHZ) {
if (common->channel_width)
common->endpoint = EP_2GHZ_40MHZ;
else
common->endpoint = EP_2GHZ_20MHZ;
} else {
if (common->channel_width)
common->endpoint = EP_5GHZ_40MHZ;
else
common->endpoint = EP_5GHZ_20MHZ;
}
if (common->endpoint != prev_ep) {
status = rsi_program_bb_rf(common);
if (status)
return status;
}
if (common->channel_width != prev_bw) {
status = rsi_load_bootup_params(common);
if (status)
return status;
status = rsi_load_radio_caps(common);
if (status)
return status;
}
return status;
}
/**
* rsi_set_channel() - This function programs the channel.
* @common: Pointer to the driver private structure.
* @channel: Channel value to be set.
*
* Return: 0 on success, corresponding error code on failure.
*/
int rsi_set_channel(struct rsi_common *common,
struct ieee80211_channel *channel)
{
struct sk_buff *skb = NULL;
struct rsi_chan_config *chan_cfg;
u16 frame_len = sizeof(struct rsi_chan_config);
rsi_dbg(MGMT_TX_ZONE,
"%s: Sending scan req frame\n", __func__);
skb = dev_alloc_skb(frame_len);
if (!skb) {
rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n",
__func__);
return -ENOMEM;
}
if (!channel) {
dev_kfree_skb(skb);
return 0;
}
memset(skb->data, 0, frame_len);
chan_cfg = (struct rsi_chan_config *)skb->data;
rsi_set_len_qno(&chan_cfg->desc_dword0.len_qno, 0, RSI_WIFI_MGMT_Q);
chan_cfg->desc_dword0.frame_type = SCAN_REQUEST;
chan_cfg->channel_number = channel->hw_value;
chan_cfg->antenna_gain_offset_2g = channel->max_antenna_gain;
chan_cfg->antenna_gain_offset_5g = channel->max_antenna_gain;
chan_cfg->region_rftype = (RSI_RF_TYPE & 0xf) << 4;
if ((channel->flags & IEEE80211_CHAN_NO_IR) ||
(channel->flags & IEEE80211_CHAN_RADAR)) {
chan_cfg->antenna_gain_offset_2g |= RSI_CHAN_RADAR;
} else {
if (common->tx_power < channel->max_power)
chan_cfg->tx_power = cpu_to_le16(common->tx_power);
else
chan_cfg->tx_power = cpu_to_le16(channel->max_power);
}
chan_cfg->region_rftype |= (common->priv->dfs_region & 0xf);
if (common->channel_width == BW_40MHZ)
chan_cfg->channel_width = 0x1;
common->channel = channel->hw_value;
skb_put(skb, frame_len);
return rsi_send_internal_mgmt_frame(common, skb);
}
/**
* rsi_send_radio_params_update() - This function sends the radio
* parameters update to device
* @common: Pointer to the driver private structure.
* @channel: Channel value to be set.
*
* Return: 0 on success, corresponding error code on failure.
*/
int rsi_send_radio_params_update(struct rsi_common *common)
{
struct rsi_mac_frame *cmd_frame;
struct sk_buff *skb = NULL;
rsi_dbg(MGMT_TX_ZONE,
"%s: Sending Radio Params update frame\n", __func__);
skb = dev_alloc_skb(FRAME_DESC_SZ);
if (!skb) {
rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n",
__func__);
return -ENOMEM;
}
memset(skb->data, 0, FRAME_DESC_SZ);
cmd_frame = (struct rsi_mac_frame *)skb->data;
cmd_frame->desc_word[0] = cpu_to_le16(RSI_WIFI_MGMT_Q << 12);
cmd_frame->desc_word[1] = cpu_to_le16(RADIO_PARAMS_UPDATE);
cmd_frame->desc_word[3] = cpu_to_le16(BIT(0));
cmd_frame->desc_word[3] |= cpu_to_le16(common->tx_power << 8);
skb_put(skb, FRAME_DESC_SZ);
return rsi_send_internal_mgmt_frame(common, skb);
}
/* This function programs the threshold. */
int rsi_send_vap_dynamic_update(struct rsi_common *common)
{
struct sk_buff *skb;
struct rsi_dynamic_s *dynamic_frame;
rsi_dbg(MGMT_TX_ZONE,
"%s: Sending vap update indication frame\n", __func__);
skb = dev_alloc_skb(sizeof(struct rsi_dynamic_s));
if (!skb)
return -ENOMEM;
memset(skb->data, 0, sizeof(struct rsi_dynamic_s));
dynamic_frame = (struct rsi_dynamic_s *)skb->data;
rsi_set_len_qno(&dynamic_frame->desc_dword0.len_qno,
sizeof(dynamic_frame->frame_body), RSI_WIFI_MGMT_Q);
dynamic_frame->desc_dword0.frame_type = VAP_DYNAMIC_UPDATE;
dynamic_frame->desc_dword2.pkt_info =
cpu_to_le32(common->rts_threshold);
if (common->wow_flags & RSI_WOW_ENABLED) {
/* Beacon miss threshold */
dynamic_frame->desc_dword3.token =
cpu_to_le16(RSI_BCN_MISS_THRESHOLD);
dynamic_frame->frame_body.keep_alive_period =
cpu_to_le16(RSI_WOW_KEEPALIVE);
} else {
dynamic_frame->frame_body.keep_alive_period =
cpu_to_le16(RSI_DEF_KEEPALIVE);
}
dynamic_frame->desc_dword3.sta_id = 0; /* vap id */
skb_put(skb, sizeof(struct rsi_dynamic_s));
return rsi_send_internal_mgmt_frame(common, skb);
}
/**
* rsi_compare() - This function is used to compare two integers
* @a: pointer to the first integer
* @b: pointer to the second integer
*
* Return: 0 if both are equal, -1 if the first is smaller, else 1
*/
static int rsi_compare(const void *a, const void *b)
{
u16 _a = *(const u16 *)(a);
u16 _b = *(const u16 *)(b);
if (_a > _b)
return -1;
if (_a < _b)
return 1;
return 0;
}
/**
* rsi_map_rates() - This function is used to map selected rates to hw rates.
* @rate: The standard rate to be mapped.
* @offset: Offset that will be returned.
*
* Return: 0 if it is a mcs rate, else 1
*/
static bool rsi_map_rates(u16 rate, int *offset)
{
int kk;
for (kk = 0; kk < ARRAY_SIZE(rsi_mcsrates); kk++) {
if (rate == mcs[kk]) {
*offset = kk;
return false;
}
}
for (kk = 0; kk < ARRAY_SIZE(rsi_rates); kk++) {
if (rate == rsi_rates[kk].bitrate / 5) {
*offset = kk;
break;
}
}
return true;
}
/**
* rsi_send_auto_rate_request() - This function is to set rates for connection
* and send autorate request to firmware.
* @common: Pointer to the driver private structure.
*
* Return: 0 on success, corresponding error code on failure.
*/
static int rsi_send_auto_rate_request(struct rsi_common *common,
struct ieee80211_sta *sta,
u16 sta_id,
struct ieee80211_vif *vif)
{
struct sk_buff *skb;
struct rsi_auto_rate *auto_rate;
int ii = 0, jj = 0, kk = 0;
struct ieee80211_hw *hw = common->priv->hw;
u8 band = hw->conf.chandef.chan->band;
u8 num_supported_rates = 0;
u8 rate_table_offset, rate_offset = 0;
u32 rate_bitmap;
u16 *selected_rates, min_rate;
bool is_ht = false, is_sgi = false;
u16 frame_len = sizeof(struct rsi_auto_rate);
rsi_dbg(MGMT_TX_ZONE,
"%s: Sending auto rate request frame\n", __func__);
skb = dev_alloc_skb(frame_len);
if (!skb) {
rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n",
__func__);
return -ENOMEM;
}
memset(skb->data, 0, frame_len);
selected_rates = kzalloc(2 * RSI_TBL_SZ, GFP_KERNEL);
if (!selected_rates) {
rsi_dbg(ERR_ZONE, "%s: Failed in allocation of mem\n",
__func__);
dev_kfree_skb(skb);
return -ENOMEM;
}
auto_rate = (struct rsi_auto_rate *)skb->data;
auto_rate->aarf_rssi = cpu_to_le16(((u16)3 << 6) | (u16)(18 & 0x3f));
auto_rate->collision_tolerance = cpu_to_le16(3);
auto_rate->failure_limit = cpu_to_le16(3);
auto_rate->initial_boundary = cpu_to_le16(3);
auto_rate->max_threshold_limt = cpu_to_le16(27);
auto_rate->desc.desc_dword0.frame_type = AUTO_RATE_IND;
if (common->channel_width == BW_40MHZ)
auto_rate->desc.desc_dword3.qid_tid = BW_40MHZ;
auto_rate->desc.desc_dword3.sta_id = sta_id;
if (vif->type == NL80211_IFTYPE_STATION) {
rate_bitmap = common->bitrate_mask[band];
is_ht = common->vif_info[0].is_ht;
is_sgi = common->vif_info[0].sgi;
} else {
rate_bitmap = sta->supp_rates[band];
is_ht = sta->ht_cap.ht_supported;
if ((sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_20) ||
(sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_40))
is_sgi = true;
}
if (band == NL80211_BAND_2GHZ) {
if ((rate_bitmap == 0) && (is_ht))
min_rate = RSI_RATE_MCS0;
else
min_rate = RSI_RATE_1;
rate_table_offset = 0;
} else {
if ((rate_bitmap == 0) && (is_ht))
min_rate = RSI_RATE_MCS0;
else
min_rate = RSI_RATE_6;
rate_table_offset = 4;
}
for (ii = 0, jj = 0;
ii < (ARRAY_SIZE(rsi_rates) - rate_table_offset); ii++) {
if (rate_bitmap & BIT(ii)) {
selected_rates[jj++] =
(rsi_rates[ii + rate_table_offset].bitrate / 5);
rate_offset++;
}
}
num_supported_rates = jj;
if (is_ht) {
for (ii = 0; ii < ARRAY_SIZE(mcs); ii++)
selected_rates[jj++] = mcs[ii];
num_supported_rates += ARRAY_SIZE(mcs);
rate_offset += ARRAY_SIZE(mcs);
}
sort(selected_rates, jj, sizeof(u16), &rsi_compare, NULL);
/* mapping the rates to RSI rates */
for (ii = 0; ii < jj; ii++) {
if (rsi_map_rates(selected_rates[ii], &kk)) {
auto_rate->supported_rates[ii] =
cpu_to_le16(rsi_rates[kk].hw_value);
} else {
auto_rate->supported_rates[ii] =
cpu_to_le16(rsi_mcsrates[kk]);
}
}
/* loading HT rates in the bottom half of the auto rate table */
if (is_ht) {
for (ii = rate_offset, kk = ARRAY_SIZE(rsi_mcsrates) - 1;
ii < rate_offset + 2 * ARRAY_SIZE(rsi_mcsrates); ii++) {
if (is_sgi || conf_is_ht40(&common->priv->hw->conf))
auto_rate->supported_rates[ii++] =
cpu_to_le16(rsi_mcsrates[kk] | BIT(9));
else
auto_rate->supported_rates[ii++] =
cpu_to_le16(rsi_mcsrates[kk]);
auto_rate->supported_rates[ii] =
cpu_to_le16(rsi_mcsrates[kk--]);
}
for (; ii < (RSI_TBL_SZ - 1); ii++) {
auto_rate->supported_rates[ii] =
cpu_to_le16(rsi_mcsrates[0]);
}
}
for (; ii < RSI_TBL_SZ; ii++)
auto_rate->supported_rates[ii] = cpu_to_le16(min_rate);
auto_rate->num_supported_rates = cpu_to_le16(num_supported_rates * 2);
auto_rate->moderate_rate_inx = cpu_to_le16(num_supported_rates / 2);
num_supported_rates *= 2;
rsi_set_len_qno(&auto_rate->desc.desc_dword0.len_qno,
(frame_len - FRAME_DESC_SZ), RSI_WIFI_MGMT_Q);
skb_put(skb, frame_len);
kfree(selected_rates);
return rsi_send_internal_mgmt_frame(common, skb);
}
/**
* rsi_inform_bss_status() - This function informs about bss status with the
* help of sta notify params by sending an internal
* management frame to firmware.
* @common: Pointer to the driver private structure.
* @status: Bss status type.
* @bssid: Bssid.
* @qos_enable: Qos is enabled.
* @aid: Aid (unique for all STAs).
*
* Return: None.
*/
void rsi_inform_bss_status(struct rsi_common *common,
enum opmode opmode,
u8 status,
const u8 *addr,
u8 qos_enable,
u16 aid,
struct ieee80211_sta *sta,
u16 sta_id,
u16 assoc_cap,
struct ieee80211_vif *vif)
{
if (status) {
if (opmode == RSI_OPMODE_STA)
common->hw_data_qs_blocked = true;
rsi_hal_send_sta_notify_frame(common,
opmode,
STA_CONNECTED,
addr,
qos_enable,
aid, sta_id,
vif);
if (common->min_rate == 0xffff)
rsi_send_auto_rate_request(common, sta, sta_id, vif);
if (opmode == RSI_OPMODE_STA &&
!(assoc_cap & WLAN_CAPABILITY_PRIVACY) &&
!rsi_send_block_unblock_frame(common, false))
common->hw_data_qs_blocked = false;
} else {
if (opmode == RSI_OPMODE_STA)
common->hw_data_qs_blocked = true;
if (!(common->wow_flags & RSI_WOW_ENABLED))
rsi_hal_send_sta_notify_frame(common, opmode,
STA_DISCONNECTED, addr,
qos_enable, aid, sta_id,
vif);
if (opmode == RSI_OPMODE_STA)
rsi_send_block_unblock_frame(common, true);
}
}
/**
* rsi_eeprom_read() - This function sends a frame to read the mac address
* from the eeprom.
* @common: Pointer to the driver private structure.
*
* Return: 0 on success, -1 on failure.
*/
static int rsi_eeprom_read(struct rsi_common *common)
{
struct rsi_eeprom_read_frame *mgmt_frame;
struct rsi_hw *adapter = common->priv;
struct sk_buff *skb;
rsi_dbg(MGMT_TX_ZONE, "%s: Sending EEPROM read req frame\n", __func__);
skb = dev_alloc_skb(FRAME_DESC_SZ);
if (!skb) {
rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n",
__func__);
return -ENOMEM;
}
memset(skb->data, 0, FRAME_DESC_SZ);
mgmt_frame = (struct rsi_eeprom_read_frame *)skb->data;
/* FrameType */
rsi_set_len_qno(&mgmt_frame->len_qno, 0, RSI_WIFI_MGMT_Q);
mgmt_frame->pkt_type = EEPROM_READ;
/* Number of bytes to read */
mgmt_frame->pkt_info =
cpu_to_le32((adapter->eeprom.length << RSI_EEPROM_LEN_OFFSET) &
RSI_EEPROM_LEN_MASK);
mgmt_frame->pkt_info |= cpu_to_le32((3 << RSI_EEPROM_HDR_SIZE_OFFSET) &
RSI_EEPROM_HDR_SIZE_MASK);
/* Address to read */
mgmt_frame->eeprom_offset = cpu_to_le32(adapter->eeprom.offset);
skb_put(skb, FRAME_DESC_SZ);
return rsi_send_internal_mgmt_frame(common, skb);
}
/**
* This function sends a frame to block/unblock
* data queues in the firmware
*
* @param common Pointer to the driver private structure.
* @param block event - block if true, unblock if false
* @return 0 on success, -1 on failure.
*/
int rsi_send_block_unblock_frame(struct rsi_common *common, bool block_event)
{
struct rsi_block_unblock_data *mgmt_frame;
struct sk_buff *skb;
rsi_dbg(MGMT_TX_ZONE, "%s: Sending block/unblock frame\n", __func__);
skb = dev_alloc_skb(FRAME_DESC_SZ);
if (!skb) {
rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n",
__func__);
return -ENOMEM;
}
memset(skb->data, 0, FRAME_DESC_SZ);
mgmt_frame = (struct rsi_block_unblock_data *)skb->data;
rsi_set_len_qno(&mgmt_frame->desc_dword0.len_qno, 0, RSI_WIFI_MGMT_Q);
mgmt_frame->desc_dword0.frame_type = BLOCK_HW_QUEUE;
mgmt_frame->host_quiet_info = QUIET_INFO_VALID;
if (block_event) {
rsi_dbg(INFO_ZONE, "blocking the data qs\n");
mgmt_frame->block_q_bitmap = cpu_to_le16(0xf);
mgmt_frame->block_q_bitmap |= cpu_to_le16(0xf << 4);
} else {
rsi_dbg(INFO_ZONE, "unblocking the data qs\n");
mgmt_frame->unblock_q_bitmap = cpu_to_le16(0xf);
mgmt_frame->unblock_q_bitmap |= cpu_to_le16(0xf << 4);
}
skb_put(skb, FRAME_DESC_SZ);
return rsi_send_internal_mgmt_frame(common, skb);
}
/**
* rsi_send_rx_filter_frame() - Sends a frame to filter the RX packets
*
* @common: Pointer to the driver private structure.
* @rx_filter_word: Flags of filter packets
*
* @Return: 0 on success, -1 on failure.
*/
int rsi_send_rx_filter_frame(struct rsi_common *common, u16 rx_filter_word)
{
struct rsi_mac_frame *cmd_frame;
struct sk_buff *skb;
rsi_dbg(MGMT_TX_ZONE, "Sending RX filter frame\n");
skb = dev_alloc_skb(FRAME_DESC_SZ);
if (!skb) {
rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n",
__func__);
return -ENOMEM;
}
memset(skb->data, 0, FRAME_DESC_SZ);
cmd_frame = (struct rsi_mac_frame *)skb->data;
cmd_frame->desc_word[0] = cpu_to_le16(RSI_WIFI_MGMT_Q << 12);
cmd_frame->desc_word[1] = cpu_to_le16(SET_RX_FILTER);
cmd_frame->desc_word[4] = cpu_to_le16(rx_filter_word);
skb_put(skb, FRAME_DESC_SZ);
return rsi_send_internal_mgmt_frame(common, skb);
}
int rsi_send_ps_request(struct rsi_hw *adapter, bool enable,
struct ieee80211_vif *vif)
{
struct rsi_common *common = adapter->priv;
struct ieee80211_bss_conf *bss = &vif->bss_conf;
struct rsi_request_ps *ps;
struct rsi_ps_info *ps_info;
struct sk_buff *skb;
int frame_len = sizeof(*ps);
skb = dev_alloc_skb(frame_len);
if (!skb)
return -ENOMEM;
memset(skb->data, 0, frame_len);
ps = (struct rsi_request_ps *)skb->data;
ps_info = &adapter->ps_info;
rsi_set_len_qno(&ps->desc.desc_dword0.len_qno,
(frame_len - FRAME_DESC_SZ), RSI_WIFI_MGMT_Q);
ps->desc.desc_dword0.frame_type = WAKEUP_SLEEP_REQUEST;
if (enable) {
ps->ps_sleep.enable = RSI_PS_ENABLE;
ps->desc.desc_dword3.token = cpu_to_le16(RSI_SLEEP_REQUEST);
} else {
ps->ps_sleep.enable = RSI_PS_DISABLE;
ps->desc.desc_dword0.len_qno |= cpu_to_le16(RSI_PS_DISABLE_IND);
ps->desc.desc_dword3.token = cpu_to_le16(RSI_WAKEUP_REQUEST);
}
ps->ps_uapsd_acs = common->uapsd_bitmap;
ps->ps_sleep.sleep_type = ps_info->sleep_type;
ps->ps_sleep.num_bcns_per_lis_int =
cpu_to_le16(ps_info->num_bcns_per_lis_int);
ps->ps_sleep.sleep_duration =
cpu_to_le32(ps_info->deep_sleep_wakeup_period);
if (bss->assoc)
ps->ps_sleep.connected_sleep = RSI_CONNECTED_SLEEP;
else
ps->ps_sleep.connected_sleep = RSI_DEEP_SLEEP;
ps->ps_listen_interval = cpu_to_le32(ps_info->listen_interval);
ps->ps_dtim_interval_duration =
cpu_to_le32(ps_info->dtim_interval_duration);
if (ps_info->listen_interval > ps_info->dtim_interval_duration)
ps->ps_listen_interval = cpu_to_le32(RSI_PS_DISABLE);
ps->ps_num_dtim_intervals = cpu_to_le16(ps_info->num_dtims_per_sleep);
skb_put(skb, frame_len);
return rsi_send_internal_mgmt_frame(common, skb);
}
/**
* rsi_set_antenna() - This fuction send antenna configuration request
* to device
*
* @common: Pointer to the driver private structure.
* @antenna: bitmap for tx antenna selection
*
* Return: 0 on Success, negative error code on failure
*/
int rsi_set_antenna(struct rsi_common *common, u8 antenna)
{
struct rsi_ant_sel_frame *ant_sel_frame;
struct sk_buff *skb;
skb = dev_alloc_skb(FRAME_DESC_SZ);
if (!skb) {
rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n",
__func__);
return -ENOMEM;
}
memset(skb->data, 0, FRAME_DESC_SZ);
ant_sel_frame = (struct rsi_ant_sel_frame *)skb->data;
ant_sel_frame->desc_dword0.frame_type = ANT_SEL_FRAME;
ant_sel_frame->sub_frame_type = ANTENNA_SEL_TYPE;
ant_sel_frame->ant_value = cpu_to_le16(antenna & ANTENNA_MASK_VALUE);
rsi_set_len_qno(&ant_sel_frame->desc_dword0.len_qno,
0, RSI_WIFI_MGMT_Q);
skb_put(skb, FRAME_DESC_SZ);
return rsi_send_internal_mgmt_frame(common, skb);
}
static int rsi_send_beacon(struct rsi_common *common)
{
struct sk_buff *skb = NULL;
u8 dword_align_bytes = 0;
skb = dev_alloc_skb(MAX_MGMT_PKT_SIZE);
if (!skb)
return -ENOMEM;
memset(skb->data, 0, MAX_MGMT_PKT_SIZE);
dword_align_bytes = ((unsigned long)skb->data & 0x3f);
if (dword_align_bytes)
skb_pull(skb, (64 - dword_align_bytes));
if (rsi_prepare_beacon(common, skb)) {
rsi_dbg(ERR_ZONE, "Failed to prepare beacon\n");
return -EINVAL;
}
skb_queue_tail(&common->tx_queue[MGMT_BEACON_Q], skb);
rsi_set_event(&common->tx_thread.event);
rsi_dbg(DATA_TX_ZONE, "%s: Added to beacon queue\n", __func__);
return 0;
}
#ifdef CONFIG_PM
int rsi_send_wowlan_request(struct rsi_common *common, u16 flags,
u16 sleep_status)
{
struct rsi_wowlan_req *cmd_frame;
struct sk_buff *skb;
u8 length;
rsi_dbg(ERR_ZONE, "%s: Sending wowlan request frame\n", __func__);
length = sizeof(*cmd_frame);
skb = dev_alloc_skb(length);
if (!skb)
return -ENOMEM;
memset(skb->data, 0, length);
cmd_frame = (struct rsi_wowlan_req *)skb->data;
rsi_set_len_qno(&cmd_frame->desc.desc_dword0.len_qno,
(length - FRAME_DESC_SZ),
RSI_WIFI_MGMT_Q);
cmd_frame->desc.desc_dword0.frame_type = WOWLAN_CONFIG_PARAMS;
cmd_frame->host_sleep_status = sleep_status;
if (common->secinfo.security_enable &&
common->secinfo.gtk_cipher)
flags |= RSI_WOW_GTK_REKEY;
if (sleep_status)
cmd_frame->wow_flags = flags;
rsi_dbg(INFO_ZONE, "Host_Sleep_Status : %d Flags : %d\n",
cmd_frame->host_sleep_status, cmd_frame->wow_flags);
skb_put(skb, length);
return rsi_send_internal_mgmt_frame(common, skb);
}
#endif
/**
* rsi_handle_ta_confirm_type() - This function handles the confirm frames.
* @common: Pointer to the driver private structure.
* @msg: Pointer to received packet.
*
* Return: 0 on success, -1 on failure.
*/
static int rsi_handle_ta_confirm_type(struct rsi_common *common,
u8 *msg)
{
struct rsi_hw *adapter = common->priv;
u8 sub_type = (msg[15] & 0xff);
u16 msg_len = ((u16 *)msg)[0] & 0xfff;
u8 offset;
switch (sub_type) {
case BOOTUP_PARAMS_REQUEST:
rsi_dbg(FSM_ZONE, "%s: Boot up params confirm received\n",
__func__);
if (common->fsm_state == FSM_BOOT_PARAMS_SENT) {
adapter->eeprom.length = (IEEE80211_ADDR_LEN +
WLAN_MAC_MAGIC_WORD_LEN +
WLAN_HOST_MODE_LEN);
adapter->eeprom.offset = WLAN_MAC_EEPROM_ADDR;
if (rsi_eeprom_read(common)) {
common->fsm_state = FSM_CARD_NOT_READY;
goto out;
}
common->fsm_state = FSM_EEPROM_READ_MAC_ADDR;
} else {
rsi_dbg(INFO_ZONE,
"%s: Received bootup params cfm in %d state\n",
__func__, common->fsm_state);
return 0;
}
break;
case EEPROM_READ:
rsi_dbg(FSM_ZONE, "EEPROM READ confirm received\n");
if (msg_len <= 0) {
rsi_dbg(FSM_ZONE,
"%s: [EEPROM_READ] Invalid len %d\n",
__func__, msg_len);
goto out;
}
if (msg[16] != MAGIC_WORD) {
rsi_dbg(FSM_ZONE,
"%s: [EEPROM_READ] Invalid token\n", __func__);
common->fsm_state = FSM_CARD_NOT_READY;
goto out;
}
if (common->fsm_state == FSM_EEPROM_READ_MAC_ADDR) {
offset = (FRAME_DESC_SZ + WLAN_HOST_MODE_LEN +
WLAN_MAC_MAGIC_WORD_LEN);
memcpy(common->mac_addr, &msg[offset], ETH_ALEN);
adapter->eeprom.length =
((WLAN_MAC_MAGIC_WORD_LEN + 3) & (~3));
adapter->eeprom.offset = WLAN_EEPROM_RFTYPE_ADDR;
if (rsi_eeprom_read(common)) {
rsi_dbg(ERR_ZONE,
"%s: Failed reading RF band\n",
__func__);
common->fsm_state = FSM_CARD_NOT_READY;
goto out;
}
common->fsm_state = FSM_EEPROM_READ_RF_TYPE;
} else if (common->fsm_state == FSM_EEPROM_READ_RF_TYPE) {
if ((msg[17] & 0x3) == 0x3) {
rsi_dbg(INIT_ZONE, "Dual band supported\n");
common->band = NL80211_BAND_5GHZ;
common->num_supp_bands = 2;
} else if ((msg[17] & 0x3) == 0x1) {
rsi_dbg(INIT_ZONE,
"Only 2.4Ghz band supported\n");
common->band = NL80211_BAND_2GHZ;
common->num_supp_bands = 1;
}
if (rsi_send_reset_mac(common))
goto out;
common->fsm_state = FSM_RESET_MAC_SENT;
} else {
rsi_dbg(ERR_ZONE, "%s: Invalid EEPROM read type\n",
__func__);
return 0;
}
break;
case RESET_MAC_REQ:
if (common->fsm_state == FSM_RESET_MAC_SENT) {
rsi_dbg(FSM_ZONE, "%s: Reset MAC cfm received\n",
__func__);
if (rsi_load_radio_caps(common))
goto out;
else
common->fsm_state = FSM_RADIO_CAPS_SENT;
} else {
rsi_dbg(ERR_ZONE,
"%s: Received reset mac cfm in %d state\n",
__func__, common->fsm_state);
return 0;
}
break;
case RADIO_CAPABILITIES:
if (common->fsm_state == FSM_RADIO_CAPS_SENT) {
common->rf_reset = 1;
if (rsi_program_bb_rf(common)) {
goto out;
} else {
common->fsm_state = FSM_BB_RF_PROG_SENT;
rsi_dbg(FSM_ZONE, "%s: Radio cap cfm received\n",
__func__);
}
} else {
rsi_dbg(INFO_ZONE,
"%s: Received radio caps cfm in %d state\n",
__func__, common->fsm_state);
return 0;
}
break;
case BB_PROG_VALUES_REQUEST:
case RF_PROG_VALUES_REQUEST:
case BBP_PROG_IN_TA:
rsi_dbg(FSM_ZONE, "%s: BB/RF cfm received\n", __func__);
if (common->fsm_state == FSM_BB_RF_PROG_SENT) {
common->bb_rf_prog_count--;
if (!common->bb_rf_prog_count) {
common->fsm_state = FSM_MAC_INIT_DONE;
if (common->reinit_hw) {
complete(&common->wlan_init_completion);
} else {
return rsi_mac80211_attach(common);
}
}
} else {
rsi_dbg(INFO_ZONE,
"%s: Received bbb_rf cfm in %d state\n",
__func__, common->fsm_state);
return 0;
}
break;
case WAKEUP_SLEEP_REQUEST:
rsi_dbg(INFO_ZONE, "Wakeup/Sleep confirmation.\n");
return rsi_handle_ps_confirm(adapter, msg);
default:
rsi_dbg(INFO_ZONE, "%s: Invalid TA confirm pkt received\n",
__func__);
break;
}
return 0;
out:
rsi_dbg(ERR_ZONE, "%s: Unable to send pkt/Invalid frame received\n",
__func__);
return -EINVAL;
}
int rsi_handle_card_ready(struct rsi_common *common, u8 *msg)
{
switch (common->fsm_state) {
case FSM_CARD_NOT_READY:
rsi_dbg(INIT_ZONE, "Card ready indication from Common HAL\n");
rsi_set_default_parameters(common);
if (rsi_send_common_dev_params(common) < 0)
return -EINVAL;
common->fsm_state = FSM_COMMON_DEV_PARAMS_SENT;
break;
case FSM_COMMON_DEV_PARAMS_SENT:
rsi_dbg(INIT_ZONE, "Card ready indication from WLAN HAL\n");
/* Get usb buffer status register address */
common->priv->usb_buffer_status_reg = *(u32 *)&msg[8];
rsi_dbg(INFO_ZONE, "USB buffer status register = %x\n",
common->priv->usb_buffer_status_reg);
if (rsi_load_bootup_params(common)) {
common->fsm_state = FSM_CARD_NOT_READY;
return -EINVAL;
}
common->fsm_state = FSM_BOOT_PARAMS_SENT;
break;
default:
rsi_dbg(ERR_ZONE,
"%s: card ready indication in invalid state %d.\n",
__func__, common->fsm_state);
return -EINVAL;
}
return 0;
}
/**
* rsi_mgmt_pkt_recv() - This function processes the management packets
* recieved from the hardware.
* @common: Pointer to the driver private structure.
* @msg: Pointer to the received packet.
*
* Return: 0 on success, -1 on failure.
*/
int rsi_mgmt_pkt_recv(struct rsi_common *common, u8 *msg)
{
s32 msg_len = (le16_to_cpu(*(__le16 *)&msg[0]) & 0x0fff);
u16 msg_type = (msg[2]);
rsi_dbg(FSM_ZONE, "%s: Msg Len: %d, Msg Type: %4x\n",
__func__, msg_len, msg_type);
switch (msg_type) {
case TA_CONFIRM_TYPE:
return rsi_handle_ta_confirm_type(common, msg);
case CARD_READY_IND:
common->hibernate_resume = false;
rsi_dbg(FSM_ZONE, "%s: Card ready indication received\n",
__func__);
return rsi_handle_card_ready(common, msg);
case TX_STATUS_IND:
switch (msg[RSI_TX_STATUS_TYPE]) {
case PROBEREQ_CONFIRM:
common->mgmt_q_block = false;
rsi_dbg(FSM_ZONE, "%s: Probe confirm received\n",
__func__);
break;
case EAPOL4_CONFIRM:
if (msg[RSI_TX_STATUS]) {
common->eapol4_confirm = true;
if (!rsi_send_block_unblock_frame(common,
false))
common->hw_data_qs_blocked = false;
}
}
break;
case BEACON_EVENT_IND:
rsi_dbg(INFO_ZONE, "Beacon event\n");
if (common->fsm_state != FSM_MAC_INIT_DONE)
return -1;
if (common->iface_down)
return -1;
if (!common->beacon_enabled)
return -1;
rsi_send_beacon(common);
break;
case RX_DOT11_MGMT:
return rsi_mgmt_pkt_to_core(common, msg, msg_len);
default:
rsi_dbg(INFO_ZONE, "Received packet type: 0x%x\n", msg_type);
}
return 0;
}
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