- 根目录:
- drivers
- net
- wireless
- iwlwifi
- dvm
- lib.c
#include <linux/etherdevice.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/sched.h>
#include <net/mac80211.h>
#include "iwl-io.h"
#include "iwl-agn-hw.h"
#include "iwl-trans.h"
#include "iwl-modparams.h"
#include "dev.h"
#include "agn.h"
int iwlagn_hw_valid_rtc_data_addr(u32 addr)
{
return (addr >= IWLAGN_RTC_DATA_LOWER_BOUND) &&
(addr < IWLAGN_RTC_DATA_UPPER_BOUND);
}
int iwlagn_send_tx_power(struct iwl_priv *priv)
{
struct iwlagn_tx_power_dbm_cmd tx_power_cmd;
u8 tx_ant_cfg_cmd;
if (WARN_ONCE(test_bit(STATUS_SCAN_HW, &priv->status),
"TX Power requested while scanning!\n"))
return -EAGAIN;
tx_power_cmd.global_lmt = (s8)(2 * priv->tx_power_user_lmt);
if (tx_power_cmd.global_lmt > priv->nvm_data->max_tx_pwr_half_dbm) {
tx_power_cmd.global_lmt =
priv->nvm_data->max_tx_pwr_half_dbm;
}
tx_power_cmd.flags = IWLAGN_TX_POWER_NO_CLOSED;
tx_power_cmd.srv_chan_lmt = IWLAGN_TX_POWER_AUTO;
if (IWL_UCODE_API(priv->fw->ucode_ver) == 1)
tx_ant_cfg_cmd = REPLY_TX_POWER_DBM_CMD_V1;
else
tx_ant_cfg_cmd = REPLY_TX_POWER_DBM_CMD;
return iwl_dvm_send_cmd_pdu(priv, tx_ant_cfg_cmd, CMD_SYNC,
sizeof(tx_power_cmd), &tx_power_cmd);
}
void iwlagn_temperature(struct iwl_priv *priv)
{
lockdep_assert_held(&priv->statistics.lock);
priv->temperature = le32_to_cpu(priv->statistics.common.temperature);
iwl_tt_handler(priv);
}
int iwlagn_hwrate_to_mac80211_idx(u32 rate_n_flags, enum ieee80211_band band)
{
int idx = 0;
int band_offset = 0;
if (rate_n_flags & RATE_MCS_HT_MSK) {
idx = (rate_n_flags & 0xff);
return idx;
} else {
if (band == IEEE80211_BAND_5GHZ)
band_offset = IWL_FIRST_OFDM_RATE;
for (idx = band_offset; idx < IWL_RATE_COUNT_LEGACY; idx++)
if (iwl_rates[idx].plcp == (rate_n_flags & 0xFF))
return idx - band_offset;
}
return -1;
}
int iwlagn_manage_ibss_station(struct iwl_priv *priv,
struct ieee80211_vif *vif, bool add)
{
struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
if (add)
return iwlagn_add_bssid_station(priv, vif_priv->ctx,
vif->bss_conf.bssid,
&vif_priv->ibss_bssid_sta_id);
return iwl_remove_station(priv, vif_priv->ibss_bssid_sta_id,
vif->bss_conf.bssid);
}
int iwlagn_txfifo_flush(struct iwl_priv *priv, u32 scd_q_msk)
{
struct iwl_txfifo_flush_cmd flush_cmd;
struct iwl_host_cmd cmd = {
.id = REPLY_TXFIFO_FLUSH,
.len = { sizeof(struct iwl_txfifo_flush_cmd), },
.flags = CMD_SYNC,
.data = { &flush_cmd, },
};
memset(&flush_cmd, 0, sizeof(flush_cmd));
flush_cmd.queue_control = IWL_SCD_VO_MSK | IWL_SCD_VI_MSK |
IWL_SCD_BE_MSK | IWL_SCD_BK_MSK |
IWL_SCD_MGMT_MSK;
if ((priv->valid_contexts != BIT(IWL_RXON_CTX_BSS)))
flush_cmd.queue_control |= IWL_PAN_SCD_VO_MSK |
IWL_PAN_SCD_VI_MSK |
IWL_PAN_SCD_BE_MSK |
IWL_PAN_SCD_BK_MSK |
IWL_PAN_SCD_MGMT_MSK |
IWL_PAN_SCD_MULTICAST_MSK;
if (priv->nvm_data->sku_cap_11n_enable)
flush_cmd.queue_control |= IWL_AGG_TX_QUEUE_MSK;
if (scd_q_msk)
flush_cmd.queue_control = cpu_to_le32(scd_q_msk);
IWL_DEBUG_INFO(priv, "queue control: 0x%x\n",
flush_cmd.queue_control);
flush_cmd.flush_control = cpu_to_le16(IWL_DROP_ALL);
return iwl_dvm_send_cmd(priv, &cmd);
}
void iwlagn_dev_txfifo_flush(struct iwl_priv *priv)
{
mutex_lock(&priv->mutex);
ieee80211_stop_queues(priv->hw);
if (iwlagn_txfifo_flush(priv, 0)) {
IWL_ERR(priv, "flush request fail\n");
goto done;
}
IWL_DEBUG_INFO(priv, "wait transmit/flush all frames\n");
iwl_trans_wait_tx_queue_empty(priv->trans);
done:
ieee80211_wake_queues(priv->hw);
mutex_unlock(&priv->mutex);
}
static const __le32 iwlagn_def_3w_lookup[IWLAGN_BT_DECISION_LUT_SIZE] = {
cpu_to_le32(0xaaaaaaaa),
cpu_to_le32(0xaaaaaaaa),
cpu_to_le32(0xaeaaaaaa),
cpu_to_le32(0xaaaaaaaa),
cpu_to_le32(0xcc00ff28),
cpu_to_le32(0x0000aaaa),
cpu_to_le32(0xcc00aaaa),
cpu_to_le32(0x0000aaaa),
cpu_to_le32(0xc0004000),
cpu_to_le32(0x00004000),
cpu_to_le32(0xf0005000),
cpu_to_le32(0xf0005000),
};
static const __le32 iwlagn_loose_lookup[IWLAGN_BT_DECISION_LUT_SIZE] = {
cpu_to_le32(0xaaaaaaaa),
cpu_to_le32(0xaaaaaaaa),
cpu_to_le32(0xaeaaaaaa),
cpu_to_le32(0xaaaaaaaa),
cpu_to_le32(0xcc00ff28),
cpu_to_le32(0x0000aaaa),
cpu_to_le32(0xcc00aaaa),
cpu_to_le32(0x0000aaaa),
cpu_to_le32(0x00000000),
cpu_to_le32(0x00000000),
cpu_to_le32(0xf0005000),
cpu_to_le32(0xf0005000),
};
static const __le32 iwlagn_concurrent_lookup[IWLAGN_BT_DECISION_LUT_SIZE] = {
cpu_to_le32(0xaaaaaaaa),
cpu_to_le32(0xaaaaaaaa),
cpu_to_le32(0xaaaaaaaa),
cpu_to_le32(0xaaaaaaaa),
cpu_to_le32(0xaaaaaaaa),
cpu_to_le32(0xaaaaaaaa),
cpu_to_le32(0xaaaaaaaa),
cpu_to_le32(0xaaaaaaaa),
cpu_to_le32(0x00000000),
cpu_to_le32(0x00000000),
cpu_to_le32(0x00000000),
cpu_to_le32(0x00000000),
};
void iwlagn_send_advance_bt_config(struct iwl_priv *priv)
{
struct iwl_basic_bt_cmd basic = {
.max_kill = IWLAGN_BT_MAX_KILL_DEFAULT,
.bt3_timer_t7_value = IWLAGN_BT3_T7_DEFAULT,
.bt3_prio_sample_time = IWLAGN_BT3_PRIO_SAMPLE_DEFAULT,
.bt3_timer_t2_value = IWLAGN_BT3_T2_DEFAULT,
};
struct iwl_bt_cmd_v1 bt_cmd_v1;
struct iwl_bt_cmd_v2 bt_cmd_v2;
int ret;
BUILD_BUG_ON(sizeof(iwlagn_def_3w_lookup) !=
sizeof(basic.bt3_lookup_table));
if (priv->lib->bt_params) {
if (priv->lib->bt_params->bt_session_2) {
bt_cmd_v2.prio_boost = cpu_to_le32(
priv->lib->bt_params->bt_prio_boost);
bt_cmd_v2.tx_prio_boost = 0;
bt_cmd_v2.rx_prio_boost = 0;
} else {
WARN_ON(priv->lib->bt_params->bt_prio_boost & ~0xFF);
bt_cmd_v1.prio_boost =
priv->lib->bt_params->bt_prio_boost;
bt_cmd_v1.tx_prio_boost = 0;
bt_cmd_v1.rx_prio_boost = 0;
}
} else {
IWL_ERR(priv, "failed to construct BT Coex Config\n");
return;
}
basic.kill_ack_mask = priv->kill_ack_mask;
basic.kill_cts_mask = priv->kill_cts_mask;
if (priv->reduced_txpower)
basic.reduce_txpower = IWLAGN_BT_REDUCED_TX_PWR;
basic.valid = priv->bt_valid;
if (!iwlwifi_mod_params.bt_coex_active ||
priv->iw_mode == NL80211_IFTYPE_ADHOC) {
basic.flags = IWLAGN_BT_FLAG_COEX_MODE_DISABLED;
} else {
basic.flags = IWLAGN_BT_FLAG_COEX_MODE_3W <<
IWLAGN_BT_FLAG_COEX_MODE_SHIFT;
if (!priv->bt_enable_pspoll)
basic.flags |= IWLAGN_BT_FLAG_SYNC_2_BT_DISABLE;
else
basic.flags &= ~IWLAGN_BT_FLAG_SYNC_2_BT_DISABLE;
if (priv->bt_ch_announce)
basic.flags |= IWLAGN_BT_FLAG_CHANNEL_INHIBITION;
IWL_DEBUG_COEX(priv, "BT coex flag: 0X%x\n", basic.flags);
}
priv->bt_enable_flag = basic.flags;
if (priv->bt_full_concurrent)
memcpy(basic.bt3_lookup_table, iwlagn_concurrent_lookup,
sizeof(iwlagn_concurrent_lookup));
else
memcpy(basic.bt3_lookup_table, iwlagn_def_3w_lookup,
sizeof(iwlagn_def_3w_lookup));
IWL_DEBUG_COEX(priv, "BT coex %s in %s mode\n",
basic.flags ? "active" : "disabled",
priv->bt_full_concurrent ?
"full concurrency" : "3-wire");
if (priv->lib->bt_params->bt_session_2) {
memcpy(&bt_cmd_v2.basic, &basic,
sizeof(basic));
ret = iwl_dvm_send_cmd_pdu(priv, REPLY_BT_CONFIG,
CMD_SYNC, sizeof(bt_cmd_v2), &bt_cmd_v2);
} else {
memcpy(&bt_cmd_v1.basic, &basic,
sizeof(basic));
ret = iwl_dvm_send_cmd_pdu(priv, REPLY_BT_CONFIG,
CMD_SYNC, sizeof(bt_cmd_v1), &bt_cmd_v1);
}
if (ret)
IWL_ERR(priv, "failed to send BT Coex Config\n");
}
void iwlagn_bt_adjust_rssi_monitor(struct iwl_priv *priv, bool rssi_ena)
{
struct iwl_rxon_context *ctx, *found_ctx = NULL;
bool found_ap = false;
lockdep_assert_held(&priv->mutex);
if (rssi_ena) {
for_each_context(priv, ctx) {
if (ctx->vif && ctx->vif->type == NL80211_IFTYPE_AP &&
iwl_is_associated_ctx(ctx)) {
found_ap = true;
break;
}
}
}
if (!rssi_ena || found_ap) {
if (priv->cur_rssi_ctx) {
ctx = priv->cur_rssi_ctx;
ieee80211_disable_rssi_reports(ctx->vif);
priv->cur_rssi_ctx = NULL;
}
return;
}
for_each_context(priv, ctx) {
if (ctx->vif && ctx->vif->type == NL80211_IFTYPE_STATION &&
iwl_is_associated_ctx(ctx)) {
found_ctx = ctx;
break;
}
}
if (found_ctx == priv->cur_rssi_ctx)
return;
if (priv->cur_rssi_ctx) {
ctx = priv->cur_rssi_ctx;
if (ctx->vif)
ieee80211_disable_rssi_reports(ctx->vif);
}
priv->cur_rssi_ctx = found_ctx;
if (!found_ctx)
return;
ieee80211_enable_rssi_reports(found_ctx->vif,
IWLAGN_BT_PSP_MIN_RSSI_THRESHOLD,
IWLAGN_BT_PSP_MAX_RSSI_THRESHOLD);
}
static bool iwlagn_bt_traffic_is_sco(struct iwl_bt_uart_msg *uart_msg)
{
return BT_UART_MSG_FRAME3SCOESCO_MSK & uart_msg->frame3 >>
BT_UART_MSG_FRAME3SCOESCO_POS;
}
static void iwlagn_bt_traffic_change_work(struct work_struct *work)
{
struct iwl_priv *priv =
container_of(work, struct iwl_priv, bt_traffic_change_work);
struct iwl_rxon_context *ctx;
int smps_request = -1;
if (priv->bt_enable_flag == IWLAGN_BT_FLAG_COEX_MODE_DISABLED) {
return;
}
IWL_DEBUG_COEX(priv, "BT traffic load changes: %d\n",
priv->bt_traffic_load);
switch (priv->bt_traffic_load) {
case IWL_BT_COEX_TRAFFIC_LOAD_NONE:
if (priv->bt_status)
smps_request = IEEE80211_SMPS_DYNAMIC;
else
smps_request = IEEE80211_SMPS_AUTOMATIC;
break;
case IWL_BT_COEX_TRAFFIC_LOAD_LOW:
smps_request = IEEE80211_SMPS_DYNAMIC;
break;
case IWL_BT_COEX_TRAFFIC_LOAD_HIGH:
case IWL_BT_COEX_TRAFFIC_LOAD_CONTINUOUS:
smps_request = IEEE80211_SMPS_STATIC;
break;
default:
IWL_ERR(priv, "Invalid BT traffic load: %d\n",
priv->bt_traffic_load);
break;
}
mutex_lock(&priv->mutex);
if (test_bit(STATUS_SCAN_HW, &priv->status))
goto out;
iwl_update_chain_flags(priv);
if (smps_request != -1) {
priv->current_ht_config.smps = smps_request;
for_each_context(priv, ctx) {
if (ctx->vif && ctx->vif->type == NL80211_IFTYPE_STATION)
ieee80211_request_smps(ctx->vif, smps_request);
}
}
iwlagn_bt_coex_rssi_monitor(priv);
out:
mutex_unlock(&priv->mutex);
}
void iwlagn_bt_coex_rssi_monitor(struct iwl_priv *priv)
{
if (priv->bt_is_sco &&
priv->bt_traffic_load == IWL_BT_COEX_TRAFFIC_LOAD_CONTINUOUS)
iwlagn_bt_adjust_rssi_monitor(priv, true);
else
iwlagn_bt_adjust_rssi_monitor(priv, false);
}
static void iwlagn_print_uartmsg(struct iwl_priv *priv,
struct iwl_bt_uart_msg *uart_msg)
{
IWL_DEBUG_COEX(priv, "Message Type = 0x%X, SSN = 0x%X, "
"Update Req = 0x%X\n",
(BT_UART_MSG_FRAME1MSGTYPE_MSK & uart_msg->frame1) >>
BT_UART_MSG_FRAME1MSGTYPE_POS,
(BT_UART_MSG_FRAME1SSN_MSK & uart_msg->frame1) >>
BT_UART_MSG_FRAME1SSN_POS,
(BT_UART_MSG_FRAME1UPDATEREQ_MSK & uart_msg->frame1) >>
BT_UART_MSG_FRAME1UPDATEREQ_POS);
IWL_DEBUG_COEX(priv, "Open connections = 0x%X, Traffic load = 0x%X, "
"Chl_SeqN = 0x%X, In band = 0x%X\n",
(BT_UART_MSG_FRAME2OPENCONNECTIONS_MSK & uart_msg->frame2) >>
BT_UART_MSG_FRAME2OPENCONNECTIONS_POS,
(BT_UART_MSG_FRAME2TRAFFICLOAD_MSK & uart_msg->frame2) >>
BT_UART_MSG_FRAME2TRAFFICLOAD_POS,
(BT_UART_MSG_FRAME2CHLSEQN_MSK & uart_msg->frame2) >>
BT_UART_MSG_FRAME2CHLSEQN_POS,
(BT_UART_MSG_FRAME2INBAND_MSK & uart_msg->frame2) >>
BT_UART_MSG_FRAME2INBAND_POS);
IWL_DEBUG_COEX(priv, "SCO/eSCO = 0x%X, Sniff = 0x%X, A2DP = 0x%X, "
"ACL = 0x%X, Master = 0x%X, OBEX = 0x%X\n",
(BT_UART_MSG_FRAME3SCOESCO_MSK & uart_msg->frame3) >>
BT_UART_MSG_FRAME3SCOESCO_POS,
(BT_UART_MSG_FRAME3SNIFF_MSK & uart_msg->frame3) >>
BT_UART_MSG_FRAME3SNIFF_POS,
(BT_UART_MSG_FRAME3A2DP_MSK & uart_msg->frame3) >>
BT_UART_MSG_FRAME3A2DP_POS,
(BT_UART_MSG_FRAME3ACL_MSK & uart_msg->frame3) >>
BT_UART_MSG_FRAME3ACL_POS,
(BT_UART_MSG_FRAME3MASTER_MSK & uart_msg->frame3) >>
BT_UART_MSG_FRAME3MASTER_POS,
(BT_UART_MSG_FRAME3OBEX_MSK & uart_msg->frame3) >>
BT_UART_MSG_FRAME3OBEX_POS);
IWL_DEBUG_COEX(priv, "Idle duration = 0x%X\n",
(BT_UART_MSG_FRAME4IDLEDURATION_MSK & uart_msg->frame4) >>
BT_UART_MSG_FRAME4IDLEDURATION_POS);
IWL_DEBUG_COEX(priv, "Tx Activity = 0x%X, Rx Activity = 0x%X, "
"eSCO Retransmissions = 0x%X\n",
(BT_UART_MSG_FRAME5TXACTIVITY_MSK & uart_msg->frame5) >>
BT_UART_MSG_FRAME5TXACTIVITY_POS,
(BT_UART_MSG_FRAME5RXACTIVITY_MSK & uart_msg->frame5) >>
BT_UART_MSG_FRAME5RXACTIVITY_POS,
(BT_UART_MSG_FRAME5ESCORETRANSMIT_MSK & uart_msg->frame5) >>
BT_UART_MSG_FRAME5ESCORETRANSMIT_POS);
IWL_DEBUG_COEX(priv, "Sniff Interval = 0x%X, Discoverable = 0x%X\n",
(BT_UART_MSG_FRAME6SNIFFINTERVAL_MSK & uart_msg->frame6) >>
BT_UART_MSG_FRAME6SNIFFINTERVAL_POS,
(BT_UART_MSG_FRAME6DISCOVERABLE_MSK & uart_msg->frame6) >>
BT_UART_MSG_FRAME6DISCOVERABLE_POS);
IWL_DEBUG_COEX(priv, "Sniff Activity = 0x%X, Page = "
"0x%X, Inquiry = 0x%X, Connectable = 0x%X\n",
(BT_UART_MSG_FRAME7SNIFFACTIVITY_MSK & uart_msg->frame7) >>
BT_UART_MSG_FRAME7SNIFFACTIVITY_POS,
(BT_UART_MSG_FRAME7PAGE_MSK & uart_msg->frame7) >>
BT_UART_MSG_FRAME7PAGE_POS,
(BT_UART_MSG_FRAME7INQUIRY_MSK & uart_msg->frame7) >>
BT_UART_MSG_FRAME7INQUIRY_POS,
(BT_UART_MSG_FRAME7CONNECTABLE_MSK & uart_msg->frame7) >>
BT_UART_MSG_FRAME7CONNECTABLE_POS);
}
static bool iwlagn_set_kill_msk(struct iwl_priv *priv,
struct iwl_bt_uart_msg *uart_msg)
{
bool need_update = false;
u8 kill_msk = IWL_BT_KILL_REDUCE;
static const __le32 bt_kill_ack_msg[3] = {
IWLAGN_BT_KILL_ACK_MASK_DEFAULT,
IWLAGN_BT_KILL_ACK_CTS_MASK_SCO,
IWLAGN_BT_KILL_ACK_CTS_MASK_REDUCE};
static const __le32 bt_kill_cts_msg[3] = {
IWLAGN_BT_KILL_CTS_MASK_DEFAULT,
IWLAGN_BT_KILL_ACK_CTS_MASK_SCO,
IWLAGN_BT_KILL_ACK_CTS_MASK_REDUCE};
if (!priv->reduced_txpower)
kill_msk = (BT_UART_MSG_FRAME3SCOESCO_MSK & uart_msg->frame3)
? IWL_BT_KILL_OVERRIDE : IWL_BT_KILL_DEFAULT;
if (priv->kill_ack_mask != bt_kill_ack_msg[kill_msk] ||
priv->kill_cts_mask != bt_kill_cts_msg[kill_msk]) {
priv->bt_valid |= IWLAGN_BT_VALID_KILL_ACK_MASK;
priv->kill_ack_mask = bt_kill_ack_msg[kill_msk];
priv->bt_valid |= IWLAGN_BT_VALID_KILL_CTS_MASK;
priv->kill_cts_mask = bt_kill_cts_msg[kill_msk];
need_update = true;
}
return need_update;
}
static bool iwlagn_fill_txpower_mode(struct iwl_priv *priv,
struct iwl_bt_uart_msg *uart_msg)
{
bool need_update = false;
struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
int ave_rssi;
if (!ctx->vif || (ctx->vif->type != NL80211_IFTYPE_STATION)) {
IWL_DEBUG_INFO(priv, "BSS ctx not active or not in sta mode\n");
return false;
}
ave_rssi = ieee80211_ave_rssi(ctx->vif);
if (!ave_rssi) {
IWL_DEBUG_COEX(priv, "no rssi data available\n");
return need_update;
}
if (!priv->reduced_txpower &&
!iwl_is_associated(priv, IWL_RXON_CTX_PAN) &&
(ave_rssi > BT_ENABLE_REDUCED_TXPOWER_THRESHOLD) &&
(uart_msg->frame3 & (BT_UART_MSG_FRAME3ACL_MSK |
BT_UART_MSG_FRAME3OBEX_MSK)) &&
!(uart_msg->frame3 & (BT_UART_MSG_FRAME3SCOESCO_MSK |
BT_UART_MSG_FRAME3SNIFF_MSK | BT_UART_MSG_FRAME3A2DP_MSK))) {
priv->reduced_txpower = true;
priv->bt_valid |= IWLAGN_BT_VALID_REDUCED_TX_PWR;
need_update = true;
} else if (priv->reduced_txpower &&
(iwl_is_associated(priv, IWL_RXON_CTX_PAN) ||
(ave_rssi < BT_DISABLE_REDUCED_TXPOWER_THRESHOLD) ||
(uart_msg->frame3 & (BT_UART_MSG_FRAME3SCOESCO_MSK |
BT_UART_MSG_FRAME3SNIFF_MSK | BT_UART_MSG_FRAME3A2DP_MSK)) ||
!(uart_msg->frame3 & (BT_UART_MSG_FRAME3ACL_MSK |
BT_UART_MSG_FRAME3OBEX_MSK)))) {
priv->reduced_txpower = false;
priv->bt_valid |= IWLAGN_BT_VALID_REDUCED_TX_PWR;
need_update = true;
}
return need_update;
}
int iwlagn_bt_coex_profile_notif(struct iwl_priv *priv,
struct iwl_rx_cmd_buffer *rxb,
struct iwl_device_cmd *cmd)
{
struct iwl_rx_packet *pkt = rxb_addr(rxb);
struct iwl_bt_coex_profile_notif *coex = (void *)pkt->data;
struct iwl_bt_uart_msg *uart_msg = &coex->last_bt_uart_msg;
if (priv->bt_enable_flag == IWLAGN_BT_FLAG_COEX_MODE_DISABLED) {
return 0;
}
IWL_DEBUG_COEX(priv, "BT Coex notification:\n");
IWL_DEBUG_COEX(priv, " status: %d\n", coex->bt_status);
IWL_DEBUG_COEX(priv, " traffic load: %d\n", coex->bt_traffic_load);
IWL_DEBUG_COEX(priv, " CI compliance: %d\n",
coex->bt_ci_compliance);
iwlagn_print_uartmsg(priv, uart_msg);
priv->last_bt_traffic_load = priv->bt_traffic_load;
priv->bt_is_sco = iwlagn_bt_traffic_is_sco(uart_msg);
if (priv->iw_mode != NL80211_IFTYPE_ADHOC) {
if (priv->bt_status != coex->bt_status ||
priv->last_bt_traffic_load != coex->bt_traffic_load) {
if (coex->bt_status) {
if (!priv->bt_ch_announce)
priv->bt_traffic_load =
IWL_BT_COEX_TRAFFIC_LOAD_HIGH;
else
priv->bt_traffic_load =
coex->bt_traffic_load;
} else {
priv->bt_traffic_load =
IWL_BT_COEX_TRAFFIC_LOAD_NONE;
}
priv->bt_status = coex->bt_status;
queue_work(priv->workqueue,
&priv->bt_traffic_change_work);
}
}
if (iwlagn_fill_txpower_mode(priv, uart_msg) ||
iwlagn_set_kill_msk(priv, uart_msg))
queue_work(priv->workqueue, &priv->bt_runtime_config);
priv->bt_ci_compliance = coex->bt_ci_compliance;
return 0;
}
void iwlagn_bt_rx_handler_setup(struct iwl_priv *priv)
{
priv->rx_handlers[REPLY_BT_COEX_PROFILE_NOTIF] =
iwlagn_bt_coex_profile_notif;
}
void iwlagn_bt_setup_deferred_work(struct iwl_priv *priv)
{
INIT_WORK(&priv->bt_traffic_change_work,
iwlagn_bt_traffic_change_work);
}
void iwlagn_bt_cancel_deferred_work(struct iwl_priv *priv)
{
cancel_work_sync(&priv->bt_traffic_change_work);
}
static bool is_single_rx_stream(struct iwl_priv *priv)
{
return priv->current_ht_config.smps == IEEE80211_SMPS_STATIC ||
priv->current_ht_config.single_chain_sufficient;
}
#define IWL_NUM_RX_CHAINS_MULTIPLE 3
#define IWL_NUM_RX_CHAINS_SINGLE 2
#define IWL_NUM_IDLE_CHAINS_DUAL 2
#define IWL_NUM_IDLE_CHAINS_SINGLE 1
static int iwl_get_active_rx_chain_count(struct iwl_priv *priv)
{
if (priv->lib->bt_params &&
priv->lib->bt_params->advanced_bt_coexist &&
(priv->bt_full_concurrent ||
priv->bt_traffic_load >= IWL_BT_COEX_TRAFFIC_LOAD_HIGH)) {
return IWL_NUM_RX_CHAINS_SINGLE;
}
if (is_single_rx_stream(priv))
return IWL_NUM_RX_CHAINS_SINGLE;
else
return IWL_NUM_RX_CHAINS_MULTIPLE;
}
static int iwl_get_idle_rx_chain_count(struct iwl_priv *priv, int active_cnt)
{
switch (priv->current_ht_config.smps) {
case IEEE80211_SMPS_STATIC:
case IEEE80211_SMPS_DYNAMIC:
return IWL_NUM_IDLE_CHAINS_SINGLE;
case IEEE80211_SMPS_AUTOMATIC:
case IEEE80211_SMPS_OFF:
return active_cnt;
default:
WARN(1, "invalid SMPS mode %d",
priv->current_ht_config.smps);
return active_cnt;
}
}
static u8 iwl_count_chain_bitmap(u32 chain_bitmap)
{
u8 res;
res = (chain_bitmap & BIT(0)) >> 0;
res += (chain_bitmap & BIT(1)) >> 1;
res += (chain_bitmap & BIT(2)) >> 2;
res += (chain_bitmap & BIT(3)) >> 3;
return res;
}
void iwlagn_set_rxon_chain(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
{
bool is_single = is_single_rx_stream(priv);
bool is_cam = !test_bit(STATUS_POWER_PMI, &priv->status);
u8 idle_rx_cnt, active_rx_cnt, valid_rx_cnt;
u32 active_chains;
u16 rx_chain;
if (priv->chain_noise_data.active_chains)
active_chains = priv->chain_noise_data.active_chains;
else
active_chains = priv->nvm_data->valid_rx_ant;
if (priv->lib->bt_params &&
priv->lib->bt_params->advanced_bt_coexist &&
(priv->bt_full_concurrent ||
priv->bt_traffic_load >= IWL_BT_COEX_TRAFFIC_LOAD_HIGH)) {
active_chains = first_antenna(active_chains);
}
rx_chain = active_chains << RXON_RX_CHAIN_VALID_POS;
active_rx_cnt = iwl_get_active_rx_chain_count(priv);
idle_rx_cnt = iwl_get_idle_rx_chain_count(priv, active_rx_cnt);
valid_rx_cnt = iwl_count_chain_bitmap(active_chains);
if (valid_rx_cnt < active_rx_cnt)
active_rx_cnt = valid_rx_cnt;
if (valid_rx_cnt < idle_rx_cnt)
idle_rx_cnt = valid_rx_cnt;
rx_chain |= active_rx_cnt << RXON_RX_CHAIN_MIMO_CNT_POS;
rx_chain |= idle_rx_cnt << RXON_RX_CHAIN_CNT_POS;
ctx->staging.rx_chain = cpu_to_le16(rx_chain);
if (!is_single && (active_rx_cnt >= IWL_NUM_RX_CHAINS_SINGLE) && is_cam)
ctx->staging.rx_chain |= RXON_RX_CHAIN_MIMO_FORCE_MSK;
else
ctx->staging.rx_chain &= ~RXON_RX_CHAIN_MIMO_FORCE_MSK;
IWL_DEBUG_ASSOC(priv, "rx_chain=0x%X active=%d idle=%d\n",
ctx->staging.rx_chain,
active_rx_cnt, idle_rx_cnt);
WARN_ON(active_rx_cnt == 0 || idle_rx_cnt == 0 ||
active_rx_cnt < idle_rx_cnt);
}
u8 iwl_toggle_tx_ant(struct iwl_priv *priv, u8 ant, u8 valid)
{
int i;
u8 ind = ant;
if (priv->band == IEEE80211_BAND_2GHZ &&
priv->bt_traffic_load >= IWL_BT_COEX_TRAFFIC_LOAD_HIGH)
return 0;
for (i = 0; i < RATE_ANT_NUM - 1; i++) {
ind = (ind + 1) < RATE_ANT_NUM ? ind + 1 : 0;
if (valid & BIT(ind))
return ind;
}
return ant;
}
#ifdef CONFIG_PM_SLEEP
static void iwlagn_convert_p1k(u16 *p1k, __le16 *out)
{
int i;
for (i = 0; i < IWLAGN_P1K_SIZE; i++)
out[i] = cpu_to_le16(p1k[i]);
}
struct wowlan_key_data {
struct iwl_rxon_context *ctx;
struct iwlagn_wowlan_rsc_tsc_params_cmd *rsc_tsc;
struct iwlagn_wowlan_tkip_params_cmd *tkip;
const u8 *bssid;
bool error, use_rsc_tsc, use_tkip;
};
static void iwlagn_wowlan_program_keys(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_sta *sta,
struct ieee80211_key_conf *key,
void *_data)
{
struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
struct wowlan_key_data *data = _data;
struct iwl_rxon_context *ctx = data->ctx;
struct aes_sc *aes_sc, *aes_tx_sc = NULL;
struct tkip_sc *tkip_sc, *tkip_tx_sc = NULL;
struct iwlagn_p1k_cache *rx_p1ks;
u8 *rx_mic_key;
struct ieee80211_key_seq seq;
u32 cur_rx_iv32 = 0;
u16 p1k[IWLAGN_P1K_SIZE];
int ret, i;
mutex_lock(&priv->mutex);
if ((key->cipher == WLAN_CIPHER_SUITE_WEP40 ||
key->cipher == WLAN_CIPHER_SUITE_WEP104) &&
!sta && !ctx->key_mapping_keys)
ret = iwl_set_default_wep_key(priv, ctx, key);
else
ret = iwl_set_dynamic_key(priv, ctx, key, sta);
if (ret) {
IWL_ERR(priv, "Error setting key during suspend!\n");
data->error = true;
}
switch (key->cipher) {
case WLAN_CIPHER_SUITE_TKIP:
if (sta) {
tkip_sc = data->rsc_tsc->all_tsc_rsc.tkip.unicast_rsc;
tkip_tx_sc = &data->rsc_tsc->all_tsc_rsc.tkip.tsc;
rx_p1ks = data->tkip->rx_uni;
ieee80211_get_key_tx_seq(key, &seq);
tkip_tx_sc->iv16 = cpu_to_le16(seq.tkip.iv16);
tkip_tx_sc->iv32 = cpu_to_le32(seq.tkip.iv32);
ieee80211_get_tkip_p1k_iv(key, seq.tkip.iv32, p1k);
iwlagn_convert_p1k(p1k, data->tkip->tx.p1k);
memcpy(data->tkip->mic_keys.tx,
&key->key[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY],
IWLAGN_MIC_KEY_SIZE);
rx_mic_key = data->tkip->mic_keys.rx_unicast;
} else {
tkip_sc =
data->rsc_tsc->all_tsc_rsc.tkip.multicast_rsc;
rx_p1ks = data->tkip->rx_multi;
rx_mic_key = data->tkip->mic_keys.rx_mcast;
}
for (i = 0; i < IWLAGN_NUM_RSC; i++) {
ieee80211_get_key_rx_seq(key, i, &seq);
tkip_sc[i].iv16 = cpu_to_le16(seq.tkip.iv16);
tkip_sc[i].iv32 = cpu_to_le32(seq.tkip.iv32);
if (seq.tkip.iv32 > cur_rx_iv32)
cur_rx_iv32 = seq.tkip.iv32;
}
ieee80211_get_tkip_rx_p1k(key, data->bssid, cur_rx_iv32, p1k);
iwlagn_convert_p1k(p1k, rx_p1ks[0].p1k);
ieee80211_get_tkip_rx_p1k(key, data->bssid,
cur_rx_iv32 + 1, p1k);
iwlagn_convert_p1k(p1k, rx_p1ks[1].p1k);
memcpy(rx_mic_key,
&key->key[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY],
IWLAGN_MIC_KEY_SIZE);
data->use_tkip = true;
data->use_rsc_tsc = true;
break;
case WLAN_CIPHER_SUITE_CCMP:
if (sta) {
u8 *pn = seq.ccmp.pn;
aes_sc = data->rsc_tsc->all_tsc_rsc.aes.unicast_rsc;
aes_tx_sc = &data->rsc_tsc->all_tsc_rsc.aes.tsc;
ieee80211_get_key_tx_seq(key, &seq);
aes_tx_sc->pn = cpu_to_le64(
(u64)pn[5] |
((u64)pn[4] << 8) |
((u64)pn[3] << 16) |
((u64)pn[2] << 24) |
((u64)pn[1] << 32) |
((u64)pn[0] << 40));
} else
aes_sc = data->rsc_tsc->all_tsc_rsc.aes.multicast_rsc;
for (i = 0; i < IWLAGN_NUM_RSC; i++) {
u8 *pn = seq.ccmp.pn;
ieee80211_get_key_rx_seq(key, i, &seq);
aes_sc->pn = cpu_to_le64(
(u64)pn[5] |
((u64)pn[4] << 8) |
((u64)pn[3] << 16) |
((u64)pn[2] << 24) |
((u64)pn[1] << 32) |
((u64)pn[0] << 40));
}
data->use_rsc_tsc = true;
break;
}
mutex_unlock(&priv->mutex);
}
int iwlagn_send_patterns(struct iwl_priv *priv,
struct cfg80211_wowlan *wowlan)
{
struct iwlagn_wowlan_patterns_cmd *pattern_cmd;
struct iwl_host_cmd cmd = {
.id = REPLY_WOWLAN_PATTERNS,
.dataflags[0] = IWL_HCMD_DFL_NOCOPY,
.flags = CMD_SYNC,
};
int i, err;
if (!wowlan->n_patterns)
return 0;
cmd.len[0] = sizeof(*pattern_cmd) +
wowlan->n_patterns * sizeof(struct iwlagn_wowlan_pattern);
pattern_cmd = kmalloc(cmd.len[0], GFP_KERNEL);
if (!pattern_cmd)
return -ENOMEM;
pattern_cmd->n_patterns = cpu_to_le32(wowlan->n_patterns);
for (i = 0; i < wowlan->n_patterns; i++) {
int mask_len = DIV_ROUND_UP(wowlan->patterns[i].pattern_len, 8);
memcpy(&pattern_cmd->patterns[i].mask,
wowlan->patterns[i].mask, mask_len);
memcpy(&pattern_cmd->patterns[i].pattern,
wowlan->patterns[i].pattern,
wowlan->patterns[i].pattern_len);
pattern_cmd->patterns[i].mask_size = mask_len;
pattern_cmd->patterns[i].pattern_size =
wowlan->patterns[i].pattern_len;
}
cmd.data[0] = pattern_cmd;
err = iwl_dvm_send_cmd(priv, &cmd);
kfree(pattern_cmd);
return err;
}
int iwlagn_suspend(struct iwl_priv *priv, struct cfg80211_wowlan *wowlan)
{
struct iwlagn_wowlan_wakeup_filter_cmd wakeup_filter_cmd;
struct iwl_rxon_cmd rxon;
struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
struct iwlagn_wowlan_kek_kck_material_cmd kek_kck_cmd;
struct iwlagn_wowlan_tkip_params_cmd tkip_cmd = {};
struct iwlagn_d3_config_cmd d3_cfg_cmd = {
.min_sleep_time = cpu_to_le32(10 * 1000 * 1000),
};
struct wowlan_key_data key_data = {
.ctx = ctx,
.bssid = ctx->active.bssid_addr,
.use_rsc_tsc = false,
.tkip = &tkip_cmd,
.use_tkip = false,
};
int ret, i;
u16 seq;
key_data.rsc_tsc = kzalloc(sizeof(*key_data.rsc_tsc), GFP_KERNEL);
if (!key_data.rsc_tsc)
return -ENOMEM;
memset(&wakeup_filter_cmd, 0, sizeof(wakeup_filter_cmd));
seq = le16_to_cpu(priv->last_seq_ctl) & IEEE80211_SCTL_SEQ;
wakeup_filter_cmd.non_qos_seq = cpu_to_le16(seq);
for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
seq = priv->tid_data[IWL_AP_ID][i].seq_number;
seq -= 0x10;
wakeup_filter_cmd.qos_seq[i] = cpu_to_le16(seq);
}
if (wowlan->disconnect)
wakeup_filter_cmd.enabled |=
cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_BEACON_MISS |
IWLAGN_WOWLAN_WAKEUP_LINK_CHANGE);
if (wowlan->magic_pkt)
wakeup_filter_cmd.enabled |=
cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_MAGIC_PACKET);
if (wowlan->gtk_rekey_failure)
wakeup_filter_cmd.enabled |=
cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_GTK_REKEY_FAIL);
if (wowlan->eap_identity_req)
wakeup_filter_cmd.enabled |=
cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_EAP_IDENT_REQ);
if (wowlan->four_way_handshake)
wakeup_filter_cmd.enabled |=
cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_4WAY_HANDSHAKE);
if (wowlan->n_patterns)
wakeup_filter_cmd.enabled |=
cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_PATTERN_MATCH);
if (wowlan->rfkill_release)
d3_cfg_cmd.wakeup_flags |=
cpu_to_le32(IWLAGN_D3_WAKEUP_RFKILL);
iwl_scan_cancel_timeout(priv, 200);
memcpy(&rxon, &ctx->active, sizeof(rxon));
priv->ucode_loaded = false;
iwl_trans_stop_device(priv->trans);
priv->wowlan = true;
ret = iwl_load_ucode_wait_alive(priv, IWL_UCODE_WOWLAN);
if (ret)
goto out;
ret = iwl_alive_start(priv);
if (ret)
goto out;
memcpy(&ctx->staging, &rxon, sizeof(rxon));
ret = iwlagn_commit_rxon(priv, ctx);
if (ret)
goto out;
ret = iwl_power_update_mode(priv, true);
if (ret)
goto out;
if (!iwlwifi_mod_params.sw_crypto) {
priv->ucode_key_table = 0;
ctx->key_mapping_keys = 0;
mutex_unlock(&priv->mutex);
ieee80211_iter_keys(priv->hw, ctx->vif,
iwlagn_wowlan_program_keys,
&key_data);
mutex_lock(&priv->mutex);
if (key_data.error) {
ret = -EIO;
goto out;
}
if (key_data.use_rsc_tsc) {
struct iwl_host_cmd rsc_tsc_cmd = {
.id = REPLY_WOWLAN_TSC_RSC_PARAMS,
.flags = CMD_SYNC,
.data[0] = key_data.rsc_tsc,
.dataflags[0] = IWL_HCMD_DFL_NOCOPY,
.len[0] = sizeof(*key_data.rsc_tsc),
};
ret = iwl_dvm_send_cmd(priv, &rsc_tsc_cmd);
if (ret)
goto out;
}
if (key_data.use_tkip) {
ret = iwl_dvm_send_cmd_pdu(priv,
REPLY_WOWLAN_TKIP_PARAMS,
CMD_SYNC, sizeof(tkip_cmd),
&tkip_cmd);
if (ret)
goto out;
}
if (priv->have_rekey_data) {
memset(&kek_kck_cmd, 0, sizeof(kek_kck_cmd));
memcpy(kek_kck_cmd.kck, priv->kck, NL80211_KCK_LEN);
kek_kck_cmd.kck_len = cpu_to_le16(NL80211_KCK_LEN);
memcpy(kek_kck_cmd.kek, priv->kek, NL80211_KEK_LEN);
kek_kck_cmd.kek_len = cpu_to_le16(NL80211_KEK_LEN);
kek_kck_cmd.replay_ctr = priv->replay_ctr;
ret = iwl_dvm_send_cmd_pdu(priv,
REPLY_WOWLAN_KEK_KCK_MATERIAL,
CMD_SYNC, sizeof(kek_kck_cmd),
&kek_kck_cmd);
if (ret)
goto out;
}
}
ret = iwl_dvm_send_cmd_pdu(priv, REPLY_D3_CONFIG, CMD_SYNC,
sizeof(d3_cfg_cmd), &d3_cfg_cmd);
if (ret)
goto out;
ret = iwl_dvm_send_cmd_pdu(priv, REPLY_WOWLAN_WAKEUP_FILTER,
CMD_SYNC, sizeof(wakeup_filter_cmd),
&wakeup_filter_cmd);
if (ret)
goto out;
ret = iwlagn_send_patterns(priv, wowlan);
out:
kfree(key_data.rsc_tsc);
return ret;
}
#endif
int iwl_dvm_send_cmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
{
if (iwl_is_rfkill(priv) || iwl_is_ctkill(priv)) {
IWL_WARN(priv, "Not sending command - %s KILL\n",
iwl_is_rfkill(priv) ? "RF" : "CT");
return -EIO;
}
if (test_bit(STATUS_FW_ERROR, &priv->status)) {
IWL_ERR(priv, "Command %s failed: FW Error\n",
iwl_dvm_get_cmd_string(cmd->id));
return -EIO;
}
if (!priv->ucode_loaded) {
IWL_ERR(priv, "Fw not loaded - dropping CMD: %x\n", cmd->id);
return -EIO;
}
if (!(cmd->flags & CMD_ASYNC))
lockdep_assert_held(&priv->mutex);
return iwl_trans_send_cmd(priv->trans, cmd);
}
int iwl_dvm_send_cmd_pdu(struct iwl_priv *priv, u8 id,
u32 flags, u16 len, const void *data)
{
struct iwl_host_cmd cmd = {
.id = id,
.len = { len, },
.data = { data, },
.flags = flags,
};
return iwl_dvm_send_cmd(priv, &cmd);
}
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