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main.c
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main.c
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// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
/* Copyright(c) 2018-2019 Realtek Corporation
*/
#include "main.h"
#include "regd.h"
#include "fw.h"
#include "ps.h"
#include "sec.h"
#include "mac.h"
#include "coex.h"
#include "phy.h"
#include "reg.h"
#include "efuse.h"
#include "tx.h"
#include "debug.h"
#include "bf.h"
bool rtw_disable_lps_deep_mode;
EXPORT_SYMBOL(rtw_disable_lps_deep_mode);
bool rtw_bf_support = true;
unsigned int rtw_debug_mask;
EXPORT_SYMBOL(rtw_debug_mask);
module_param_named(disable_lps_deep, rtw_disable_lps_deep_mode, bool, 0644);
module_param_named(support_bf, rtw_bf_support, bool, 0644);
module_param_named(debug_mask, rtw_debug_mask, uint, 0644);
MODULE_PARM_DESC(disable_lps_deep, "Set Y to disable Deep PS");
MODULE_PARM_DESC(support_bf, "Set Y to enable beamformee support");
MODULE_PARM_DESC(debug_mask, "Debugging mask");
static struct ieee80211_channel rtw_channeltable_2g[] = {
{.center_freq = 2412, .hw_value = 1,},
{.center_freq = 2417, .hw_value = 2,},
{.center_freq = 2422, .hw_value = 3,},
{.center_freq = 2427, .hw_value = 4,},
{.center_freq = 2432, .hw_value = 5,},
{.center_freq = 2437, .hw_value = 6,},
{.center_freq = 2442, .hw_value = 7,},
{.center_freq = 2447, .hw_value = 8,},
{.center_freq = 2452, .hw_value = 9,},
{.center_freq = 2457, .hw_value = 10,},
{.center_freq = 2462, .hw_value = 11,},
{.center_freq = 2467, .hw_value = 12,},
{.center_freq = 2472, .hw_value = 13,},
{.center_freq = 2484, .hw_value = 14,},
};
static struct ieee80211_channel rtw_channeltable_5g[] = {
{.center_freq = 5180, .hw_value = 36,},
{.center_freq = 5200, .hw_value = 40,},
{.center_freq = 5220, .hw_value = 44,},
{.center_freq = 5240, .hw_value = 48,},
{.center_freq = 5260, .hw_value = 52,},
{.center_freq = 5280, .hw_value = 56,},
{.center_freq = 5300, .hw_value = 60,},
{.center_freq = 5320, .hw_value = 64,},
{.center_freq = 5500, .hw_value = 100,},
{.center_freq = 5520, .hw_value = 104,},
{.center_freq = 5540, .hw_value = 108,},
{.center_freq = 5560, .hw_value = 112,},
{.center_freq = 5580, .hw_value = 116,},
{.center_freq = 5600, .hw_value = 120,},
{.center_freq = 5620, .hw_value = 124,},
{.center_freq = 5640, .hw_value = 128,},
{.center_freq = 5660, .hw_value = 132,},
{.center_freq = 5680, .hw_value = 136,},
{.center_freq = 5700, .hw_value = 140,},
{.center_freq = 5745, .hw_value = 149,},
{.center_freq = 5765, .hw_value = 153,},
{.center_freq = 5785, .hw_value = 157,},
{.center_freq = 5805, .hw_value = 161,},
{.center_freq = 5825, .hw_value = 165,
.flags = IEEE80211_CHAN_NO_HT40MINUS},
};
static struct ieee80211_rate rtw_ratetable[] = {
{.bitrate = 10, .hw_value = 0x00,},
{.bitrate = 20, .hw_value = 0x01,},
{.bitrate = 55, .hw_value = 0x02,},
{.bitrate = 110, .hw_value = 0x03,},
{.bitrate = 60, .hw_value = 0x04,},
{.bitrate = 90, .hw_value = 0x05,},
{.bitrate = 120, .hw_value = 0x06,},
{.bitrate = 180, .hw_value = 0x07,},
{.bitrate = 240, .hw_value = 0x08,},
{.bitrate = 360, .hw_value = 0x09,},
{.bitrate = 480, .hw_value = 0x0a,},
{.bitrate = 540, .hw_value = 0x0b,},
};
u16 rtw_desc_to_bitrate(u8 desc_rate)
{
struct ieee80211_rate rate;
if (WARN(desc_rate >= ARRAY_SIZE(rtw_ratetable), "invalid desc rate\n"))
return 0;
rate = rtw_ratetable[desc_rate];
return rate.bitrate;
}
static struct ieee80211_supported_band rtw_band_2ghz = {
.band = NL80211_BAND_2GHZ,
.channels = rtw_channeltable_2g,
.n_channels = ARRAY_SIZE(rtw_channeltable_2g),
.bitrates = rtw_ratetable,
.n_bitrates = ARRAY_SIZE(rtw_ratetable),
.ht_cap = {0},
.vht_cap = {0},
};
static struct ieee80211_supported_band rtw_band_5ghz = {
.band = NL80211_BAND_5GHZ,
.channels = rtw_channeltable_5g,
.n_channels = ARRAY_SIZE(rtw_channeltable_5g),
/* 5G has no CCK rates */
.bitrates = rtw_ratetable + 4,
.n_bitrates = ARRAY_SIZE(rtw_ratetable) - 4,
.ht_cap = {0},
.vht_cap = {0},
};
struct rtw_watch_dog_iter_data {
struct rtw_dev *rtwdev;
struct rtw_vif *rtwvif;
};
static void rtw_dynamic_csi_rate(struct rtw_dev *rtwdev, struct rtw_vif *rtwvif)
{
struct rtw_bf_info *bf_info = &rtwdev->bf_info;
u8 fix_rate_enable = 0;
u8 new_csi_rate_idx;
if (rtwvif->bfee.role != RTW_BFEE_SU &&
rtwvif->bfee.role != RTW_BFEE_MU)
return;
rtw_chip_cfg_csi_rate(rtwdev, rtwdev->dm_info.min_rssi,
bf_info->cur_csi_rpt_rate,
fix_rate_enable, &new_csi_rate_idx);
if (new_csi_rate_idx != bf_info->cur_csi_rpt_rate)
bf_info->cur_csi_rpt_rate = new_csi_rate_idx;
}
static void rtw_vif_watch_dog_iter(void *data, u8 *mac,
struct ieee80211_vif *vif)
{
struct rtw_watch_dog_iter_data *iter_data = data;
struct rtw_vif *rtwvif = (struct rtw_vif *)vif->drv_priv;
if (vif->type == NL80211_IFTYPE_STATION)
if (vif->bss_conf.assoc)
iter_data->rtwvif = rtwvif;
rtw_dynamic_csi_rate(iter_data->rtwdev, rtwvif);
rtwvif->stats.tx_unicast = 0;
rtwvif->stats.rx_unicast = 0;
rtwvif->stats.tx_cnt = 0;
rtwvif->stats.rx_cnt = 0;
}
/* process TX/RX statistics periodically for hardware,
* the information helps hardware to enhance performance
*/
static void rtw_watch_dog_work(struct work_struct *work)
{
struct rtw_dev *rtwdev = container_of(work, struct rtw_dev,
watch_dog_work.work);
struct rtw_traffic_stats *stats = &rtwdev->stats;
struct rtw_watch_dog_iter_data data = {};
bool busy_traffic = test_bit(RTW_FLAG_BUSY_TRAFFIC, rtwdev->flags);
bool ps_active;
mutex_lock(&rtwdev->mutex);
if (!test_bit(RTW_FLAG_RUNNING, rtwdev->flags))
goto unlock;
ieee80211_queue_delayed_work(rtwdev->hw, &rtwdev->watch_dog_work,
RTW_WATCH_DOG_DELAY_TIME);
if (rtwdev->stats.tx_cnt > 100 || rtwdev->stats.rx_cnt > 100)
set_bit(RTW_FLAG_BUSY_TRAFFIC, rtwdev->flags);
else
clear_bit(RTW_FLAG_BUSY_TRAFFIC, rtwdev->flags);
if (busy_traffic != test_bit(RTW_FLAG_BUSY_TRAFFIC, rtwdev->flags))
rtw_coex_wl_status_change_notify(rtwdev, 0);
if (stats->tx_cnt > RTW_LPS_THRESHOLD ||
stats->rx_cnt > RTW_LPS_THRESHOLD)
ps_active = true;
else
ps_active = false;
ewma_tp_add(&stats->tx_ewma_tp,
(u32)(stats->tx_unicast >> RTW_TP_SHIFT));
ewma_tp_add(&stats->rx_ewma_tp,
(u32)(stats->rx_unicast >> RTW_TP_SHIFT));
stats->tx_throughput = ewma_tp_read(&stats->tx_ewma_tp);
stats->rx_throughput = ewma_tp_read(&stats->rx_ewma_tp);
/* reset tx/rx statictics */
stats->tx_unicast = 0;
stats->rx_unicast = 0;
stats->tx_cnt = 0;
stats->rx_cnt = 0;
if (test_bit(RTW_FLAG_SCANNING, rtwdev->flags))
goto unlock;
/* make sure BB/RF is working for dynamic mech */
rtw_leave_lps(rtwdev);
rtw_phy_dynamic_mechanism(rtwdev);
data.rtwdev = rtwdev;
/* use atomic version to avoid taking local->iflist_mtx mutex */
rtw_iterate_vifs_atomic(rtwdev, rtw_vif_watch_dog_iter, &data);
/* fw supports only one station associated to enter lps, if there are
* more than two stations associated to the AP, then we can not enter
* lps, because fw does not handle the overlapped beacon interval
*
* mac80211 should iterate vifs and determine if driver can enter
* ps by passing IEEE80211_CONF_PS to us, all we need to do is to
* get that vif and check if device is having traffic more than the
* threshold.
*/
if (rtwdev->ps_enabled && data.rtwvif && !ps_active)
rtw_enter_lps(rtwdev, data.rtwvif->port);
rtwdev->watch_dog_cnt++;
unlock:
mutex_unlock(&rtwdev->mutex);
}
static void rtw_c2h_work(struct work_struct *work)
{
struct rtw_dev *rtwdev = container_of(work, struct rtw_dev, c2h_work);
struct sk_buff *skb, *tmp;
skb_queue_walk_safe(&rtwdev->c2h_queue, skb, tmp) {
skb_unlink(skb, &rtwdev->c2h_queue);
rtw_fw_c2h_cmd_handle(rtwdev, skb);
dev_kfree_skb_any(skb);
}
}
static u8 rtw_acquire_macid(struct rtw_dev *rtwdev)
{
unsigned long mac_id;
mac_id = find_first_zero_bit(rtwdev->mac_id_map, RTW_MAX_MAC_ID_NUM);
if (mac_id < RTW_MAX_MAC_ID_NUM)
set_bit(mac_id, rtwdev->mac_id_map);
return mac_id;
}
int rtw_sta_add(struct rtw_dev *rtwdev, struct ieee80211_sta *sta,
struct ieee80211_vif *vif)
{
struct rtw_sta_info *si = (struct rtw_sta_info *)sta->drv_priv;
int i;
si->mac_id = rtw_acquire_macid(rtwdev);
if (si->mac_id >= RTW_MAX_MAC_ID_NUM)
return -ENOSPC;
si->sta = sta;
si->vif = vif;
si->init_ra_lv = 1;
ewma_rssi_init(&si->avg_rssi);
for (i = 0; i < ARRAY_SIZE(sta->txq); i++)
rtw_txq_init(rtwdev, sta->txq[i]);
rtw_update_sta_info(rtwdev, si);
rtw_fw_media_status_report(rtwdev, si->mac_id, true);
rtwdev->sta_cnt++;
rtw_info(rtwdev, "sta %pM joined with macid %d\n",
sta->addr, si->mac_id);
return 0;
}
void rtw_sta_remove(struct rtw_dev *rtwdev, struct ieee80211_sta *sta,
bool fw_exist)
{
struct rtw_sta_info *si = (struct rtw_sta_info *)sta->drv_priv;
int i;
rtw_release_macid(rtwdev, si->mac_id);
if (fw_exist)
rtw_fw_media_status_report(rtwdev, si->mac_id, false);
for (i = 0; i < ARRAY_SIZE(sta->txq); i++)
rtw_txq_cleanup(rtwdev, sta->txq[i]);
kfree(si->mask);
rtwdev->sta_cnt--;
rtw_info(rtwdev, "sta %pM with macid %d left\n",
sta->addr, si->mac_id);
}
static bool rtw_fw_dump_crash_log(struct rtw_dev *rtwdev)
{
u32 size = rtwdev->chip->fw_rxff_size;
u32 *buf;
u8 seq;
bool ret = true;
buf = vmalloc(size);
if (!buf)
goto exit;
if (rtw_fw_dump_fifo(rtwdev, RTW_FW_FIFO_SEL_RXBUF_FW, 0, size, buf)) {
rtw_dbg(rtwdev, RTW_DBG_FW, "dump fw fifo fail\n");
goto free_buf;
}
if (GET_FW_DUMP_LEN(buf) == 0) {
rtw_dbg(rtwdev, RTW_DBG_FW, "fw crash dump's length is 0\n");
goto free_buf;
}
seq = GET_FW_DUMP_SEQ(buf);
if (seq > 0 && seq != (rtwdev->fw.prev_dump_seq + 1)) {
rtw_dbg(rtwdev, RTW_DBG_FW,
"fw crash dump's seq is wrong: %d\n", seq);
goto free_buf;
}
if (seq == 0 &&
(GET_FW_DUMP_TLV_TYPE(buf) != FW_CD_TYPE ||
GET_FW_DUMP_TLV_LEN(buf) != FW_CD_LEN ||
GET_FW_DUMP_TLV_VAL(buf) != FW_CD_VAL)) {
rtw_dbg(rtwdev, RTW_DBG_FW, "fw crash dump's tlv is wrong\n");
goto free_buf;
}
print_hex_dump_bytes("rtw88 fw dump: ", DUMP_PREFIX_OFFSET, buf, size);
if (GET_FW_DUMP_MORE(buf) == 1) {
rtwdev->fw.prev_dump_seq = seq;
ret = false;
}
free_buf:
vfree(buf);
exit:
rtw_write8(rtwdev, REG_MCU_TST_CFG, 0);
return ret;
}
void rtw_vif_assoc_changed(struct rtw_vif *rtwvif,
struct ieee80211_bss_conf *conf)
{
if (conf && conf->assoc) {
rtwvif->aid = conf->aid;
rtwvif->net_type = RTW_NET_MGD_LINKED;
} else {
rtwvif->aid = 0;
rtwvif->net_type = RTW_NET_NO_LINK;
}
}
static void rtw_reset_key_iter(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_sta *sta,
struct ieee80211_key_conf *key,
void *data)
{
struct rtw_dev *rtwdev = (struct rtw_dev *)data;
struct rtw_sec_desc *sec = &rtwdev->sec;
rtw_sec_clear_cam(rtwdev, sec, key->hw_key_idx);
}
static void rtw_reset_sta_iter(void *data, struct ieee80211_sta *sta)
{
struct rtw_dev *rtwdev = (struct rtw_dev *)data;
if (rtwdev->sta_cnt == 0) {
rtw_warn(rtwdev, "sta count before reset should not be 0\n");
return;
}
rtw_sta_remove(rtwdev, sta, false);
}
static void rtw_reset_vif_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
{
struct rtw_dev *rtwdev = (struct rtw_dev *)data;
struct rtw_vif *rtwvif = (struct rtw_vif *)vif->drv_priv;
rtw_bf_disassoc(rtwdev, vif, NULL);
rtw_vif_assoc_changed(rtwvif, NULL);
rtw_txq_cleanup(rtwdev, vif->txq);
}
void rtw_fw_recovery(struct rtw_dev *rtwdev)
{
if (!test_bit(RTW_FLAG_RESTARTING, rtwdev->flags))
ieee80211_queue_work(rtwdev->hw, &rtwdev->fw_recovery_work);
}
static void rtw_fw_recovery_work(struct work_struct *work)
{
struct rtw_dev *rtwdev = container_of(work, struct rtw_dev,
fw_recovery_work);
/* rtw_fw_dump_crash_log() returns false indicates that there are
* still more log to dump. Driver set 0x1cf[7:0] = 0x1 to tell firmware
* to dump the remaining part of the log, and firmware will trigger an
* IMR_C2HCMD interrupt to inform driver the log is ready.
*/
if (!rtw_fw_dump_crash_log(rtwdev)) {
rtw_write8(rtwdev, REG_HRCV_MSG, 1);
return;
}
rtwdev->fw.prev_dump_seq = 0;
WARN(1, "firmware crash, start reset and recover\n");
mutex_lock(&rtwdev->mutex);
set_bit(RTW_FLAG_RESTARTING, rtwdev->flags);
rcu_read_lock();
rtw_iterate_keys_rcu(rtwdev, NULL, rtw_reset_key_iter, rtwdev);
rcu_read_unlock();
rtw_iterate_stas_atomic(rtwdev, rtw_reset_sta_iter, rtwdev);
rtw_iterate_vifs_atomic(rtwdev, rtw_reset_vif_iter, rtwdev);
rtw_enter_ips(rtwdev);
mutex_unlock(&rtwdev->mutex);
ieee80211_restart_hw(rtwdev->hw);
}
struct rtw_txq_ba_iter_data {
};
static void rtw_txq_ba_iter(void *data, struct ieee80211_sta *sta)
{
struct rtw_sta_info *si = (struct rtw_sta_info *)sta->drv_priv;
int ret;
u8 tid;
tid = find_first_bit(si->tid_ba, IEEE80211_NUM_TIDS);
while (tid != IEEE80211_NUM_TIDS) {
clear_bit(tid, si->tid_ba);
ret = ieee80211_start_tx_ba_session(sta, tid, 0);
if (ret == -EINVAL) {
struct ieee80211_txq *txq;
struct rtw_txq *rtwtxq;
txq = sta->txq[tid];
rtwtxq = (struct rtw_txq *)txq->drv_priv;
set_bit(RTW_TXQ_BLOCK_BA, &rtwtxq->flags);
}
tid = find_first_bit(si->tid_ba, IEEE80211_NUM_TIDS);
}
}
static void rtw_txq_ba_work(struct work_struct *work)
{
struct rtw_dev *rtwdev = container_of(work, struct rtw_dev, ba_work);
struct rtw_txq_ba_iter_data data;
rtw_iterate_stas_atomic(rtwdev, rtw_txq_ba_iter, &data);
}
void rtw_get_channel_params(struct cfg80211_chan_def *chandef,
struct rtw_channel_params *chan_params)
{
struct ieee80211_channel *channel = chandef->chan;
enum nl80211_chan_width width = chandef->width;
u8 *cch_by_bw = chan_params->cch_by_bw;
u32 primary_freq, center_freq;
u8 center_chan;
u8 bandwidth = RTW_CHANNEL_WIDTH_20;
u8 primary_chan_idx = 0;
u8 i;
center_chan = channel->hw_value;
primary_freq = channel->center_freq;
center_freq = chandef->center_freq1;
/* assign the center channel used while 20M bw is selected */
cch_by_bw[RTW_CHANNEL_WIDTH_20] = channel->hw_value;
switch (width) {
case NL80211_CHAN_WIDTH_20_NOHT:
case NL80211_CHAN_WIDTH_20:
bandwidth = RTW_CHANNEL_WIDTH_20;
primary_chan_idx = RTW_SC_DONT_CARE;
break;
case NL80211_CHAN_WIDTH_40:
bandwidth = RTW_CHANNEL_WIDTH_40;
if (primary_freq > center_freq) {
primary_chan_idx = RTW_SC_20_UPPER;
center_chan -= 2;
} else {
primary_chan_idx = RTW_SC_20_LOWER;
center_chan += 2;
}
break;
case NL80211_CHAN_WIDTH_80:
bandwidth = RTW_CHANNEL_WIDTH_80;
if (primary_freq > center_freq) {
if (primary_freq - center_freq == 10) {
primary_chan_idx = RTW_SC_20_UPPER;
center_chan -= 2;
} else {
primary_chan_idx = RTW_SC_20_UPMOST;
center_chan -= 6;
}
/* assign the center channel used
* while 40M bw is selected
*/
cch_by_bw[RTW_CHANNEL_WIDTH_40] = center_chan + 4;
} else {
if (center_freq - primary_freq == 10) {
primary_chan_idx = RTW_SC_20_LOWER;
center_chan += 2;
} else {
primary_chan_idx = RTW_SC_20_LOWEST;
center_chan += 6;
}
/* assign the center channel used
* while 40M bw is selected
*/
cch_by_bw[RTW_CHANNEL_WIDTH_40] = center_chan - 4;
}
break;
default:
center_chan = 0;
break;
}
chan_params->center_chan = center_chan;
chan_params->bandwidth = bandwidth;
chan_params->primary_chan_idx = primary_chan_idx;
/* assign the center channel used while current bw is selected */
cch_by_bw[bandwidth] = center_chan;
for (i = bandwidth + 1; i <= RTW_MAX_CHANNEL_WIDTH; i++)
cch_by_bw[i] = 0;
}
void rtw_set_channel(struct rtw_dev *rtwdev)
{
struct ieee80211_hw *hw = rtwdev->hw;
struct rtw_hal *hal = &rtwdev->hal;
struct rtw_chip_info *chip = rtwdev->chip;
struct rtw_channel_params ch_param;
u8 center_chan, bandwidth, primary_chan_idx;
u8 i;
rtw_get_channel_params(&hw->conf.chandef, &ch_param);
if (WARN(ch_param.center_chan == 0, "Invalid channel\n"))
return;
center_chan = ch_param.center_chan;
bandwidth = ch_param.bandwidth;
primary_chan_idx = ch_param.primary_chan_idx;
hal->current_band_width = bandwidth;
hal->current_channel = center_chan;
hal->current_band_type = center_chan > 14 ? RTW_BAND_5G : RTW_BAND_2G;
for (i = RTW_CHANNEL_WIDTH_20; i <= RTW_MAX_CHANNEL_WIDTH; i++)
hal->cch_by_bw[i] = ch_param.cch_by_bw[i];
chip->ops->set_channel(rtwdev, center_chan, bandwidth, primary_chan_idx);
if (hal->current_band_type == RTW_BAND_5G) {
rtw_coex_switchband_notify(rtwdev, COEX_SWITCH_TO_5G);
} else {
if (test_bit(RTW_FLAG_SCANNING, rtwdev->flags))
rtw_coex_switchband_notify(rtwdev, COEX_SWITCH_TO_24G);
else
rtw_coex_switchband_notify(rtwdev, COEX_SWITCH_TO_24G_NOFORSCAN);
}
rtw_phy_set_tx_power_level(rtwdev, center_chan);
/* if the channel isn't set for scanning, we will do RF calibration
* in ieee80211_ops::mgd_prepare_tx(). Performing the calibration
* during scanning on each channel takes too long.
*/
if (!test_bit(RTW_FLAG_SCANNING, rtwdev->flags))
rtwdev->need_rfk = true;
}
void rtw_chip_prepare_tx(struct rtw_dev *rtwdev)
{
struct rtw_chip_info *chip = rtwdev->chip;
if (rtwdev->need_rfk) {
rtwdev->need_rfk = false;
chip->ops->phy_calibration(rtwdev);
}
}
static void rtw_vif_write_addr(struct rtw_dev *rtwdev, u32 start, u8 *addr)
{
int i;
for (i = 0; i < ETH_ALEN; i++)
rtw_write8(rtwdev, start + i, addr[i]);
}
void rtw_vif_port_config(struct rtw_dev *rtwdev,
struct rtw_vif *rtwvif,
u32 config)
{
u32 addr, mask;
if (config & PORT_SET_MAC_ADDR) {
addr = rtwvif->conf->mac_addr.addr;
rtw_vif_write_addr(rtwdev, addr, rtwvif->mac_addr);
}
if (config & PORT_SET_BSSID) {
addr = rtwvif->conf->bssid.addr;
rtw_vif_write_addr(rtwdev, addr, rtwvif->bssid);
}
if (config & PORT_SET_NET_TYPE) {
addr = rtwvif->conf->net_type.addr;
mask = rtwvif->conf->net_type.mask;
rtw_write32_mask(rtwdev, addr, mask, rtwvif->net_type);
}
if (config & PORT_SET_AID) {
addr = rtwvif->conf->aid.addr;
mask = rtwvif->conf->aid.mask;
rtw_write32_mask(rtwdev, addr, mask, rtwvif->aid);
}
if (config & PORT_SET_BCN_CTRL) {
addr = rtwvif->conf->bcn_ctrl.addr;
mask = rtwvif->conf->bcn_ctrl.mask;
rtw_write8_mask(rtwdev, addr, mask, rtwvif->bcn_ctrl);
}
}
static u8 hw_bw_cap_to_bitamp(u8 bw_cap)
{
u8 bw = 0;
switch (bw_cap) {
case EFUSE_HW_CAP_IGNORE:
case EFUSE_HW_CAP_SUPP_BW80:
bw |= BIT(RTW_CHANNEL_WIDTH_80);
fallthrough;
case EFUSE_HW_CAP_SUPP_BW40:
bw |= BIT(RTW_CHANNEL_WIDTH_40);
fallthrough;
default:
bw |= BIT(RTW_CHANNEL_WIDTH_20);
break;
}
return bw;
}
static void rtw_hw_config_rf_ant_num(struct rtw_dev *rtwdev, u8 hw_ant_num)
{
struct rtw_hal *hal = &rtwdev->hal;
struct rtw_chip_info *chip = rtwdev->chip;
if (hw_ant_num == EFUSE_HW_CAP_IGNORE ||
hw_ant_num >= hal->rf_path_num)
return;
switch (hw_ant_num) {
case 1:
hal->rf_type = RF_1T1R;
hal->rf_path_num = 1;
if (!chip->fix_rf_phy_num)
hal->rf_phy_num = hal->rf_path_num;
hal->antenna_tx = BB_PATH_A;
hal->antenna_rx = BB_PATH_A;
break;
default:
WARN(1, "invalid hw configuration from efuse\n");
break;
}
}
static u64 get_vht_ra_mask(struct ieee80211_sta *sta)
{
u64 ra_mask = 0;
u16 mcs_map = le16_to_cpu(sta->vht_cap.vht_mcs.rx_mcs_map);
u8 vht_mcs_cap;
int i, nss;
/* 4SS, every two bits for MCS7/8/9 */
for (i = 0, nss = 12; i < 4; i++, mcs_map >>= 2, nss += 10) {
vht_mcs_cap = mcs_map & 0x3;
switch (vht_mcs_cap) {
case 2: /* MCS9 */
ra_mask |= 0x3ffULL << nss;
break;
case 1: /* MCS8 */
ra_mask |= 0x1ffULL << nss;
break;
case 0: /* MCS7 */
ra_mask |= 0x0ffULL << nss;
break;
default:
break;
}
}
return ra_mask;
}
static u8 get_rate_id(u8 wireless_set, enum rtw_bandwidth bw_mode, u8 tx_num)
{
u8 rate_id = 0;
switch (wireless_set) {
case WIRELESS_CCK:
rate_id = RTW_RATEID_B_20M;
break;
case WIRELESS_OFDM:
rate_id = RTW_RATEID_G;
break;
case WIRELESS_CCK | WIRELESS_OFDM:
rate_id = RTW_RATEID_BG;
break;
case WIRELESS_OFDM | WIRELESS_HT:
if (tx_num == 1)
rate_id = RTW_RATEID_GN_N1SS;
else if (tx_num == 2)
rate_id = RTW_RATEID_GN_N2SS;
else if (tx_num == 3)
rate_id = RTW_RATEID_ARFR5_N_3SS;
break;
case WIRELESS_CCK | WIRELESS_OFDM | WIRELESS_HT:
if (bw_mode == RTW_CHANNEL_WIDTH_40) {
if (tx_num == 1)
rate_id = RTW_RATEID_BGN_40M_1SS;
else if (tx_num == 2)
rate_id = RTW_RATEID_BGN_40M_2SS;
else if (tx_num == 3)
rate_id = RTW_RATEID_ARFR5_N_3SS;
else if (tx_num == 4)
rate_id = RTW_RATEID_ARFR7_N_4SS;
} else {
if (tx_num == 1)
rate_id = RTW_RATEID_BGN_20M_1SS;
else if (tx_num == 2)
rate_id = RTW_RATEID_BGN_20M_2SS;
else if (tx_num == 3)
rate_id = RTW_RATEID_ARFR5_N_3SS;
else if (tx_num == 4)
rate_id = RTW_RATEID_ARFR7_N_4SS;
}
break;
case WIRELESS_OFDM | WIRELESS_VHT:
if (tx_num == 1)
rate_id = RTW_RATEID_ARFR1_AC_1SS;
else if (tx_num == 2)
rate_id = RTW_RATEID_ARFR0_AC_2SS;
else if (tx_num == 3)
rate_id = RTW_RATEID_ARFR4_AC_3SS;
else if (tx_num == 4)
rate_id = RTW_RATEID_ARFR6_AC_4SS;
break;
case WIRELESS_CCK | WIRELESS_OFDM | WIRELESS_VHT:
if (bw_mode >= RTW_CHANNEL_WIDTH_80) {
if (tx_num == 1)
rate_id = RTW_RATEID_ARFR1_AC_1SS;
else if (tx_num == 2)
rate_id = RTW_RATEID_ARFR0_AC_2SS;
else if (tx_num == 3)
rate_id = RTW_RATEID_ARFR4_AC_3SS;
else if (tx_num == 4)
rate_id = RTW_RATEID_ARFR6_AC_4SS;
} else {
if (tx_num == 1)
rate_id = RTW_RATEID_ARFR2_AC_2G_1SS;
else if (tx_num == 2)
rate_id = RTW_RATEID_ARFR3_AC_2G_2SS;
else if (tx_num == 3)
rate_id = RTW_RATEID_ARFR4_AC_3SS;
else if (tx_num == 4)
rate_id = RTW_RATEID_ARFR6_AC_4SS;
}
break;
default:
break;
}
return rate_id;
}
#define RA_MASK_CCK_RATES 0x0000f
#define RA_MASK_OFDM_RATES 0x00ff0
#define RA_MASK_HT_RATES_1SS (0xff000ULL << 0)
#define RA_MASK_HT_RATES_2SS (0xff000ULL << 8)
#define RA_MASK_HT_RATES_3SS (0xff000ULL << 16)
#define RA_MASK_HT_RATES (RA_MASK_HT_RATES_1SS | \
RA_MASK_HT_RATES_2SS | \
RA_MASK_HT_RATES_3SS)
#define RA_MASK_VHT_RATES_1SS (0x3ff000ULL << 0)
#define RA_MASK_VHT_RATES_2SS (0x3ff000ULL << 10)
#define RA_MASK_VHT_RATES_3SS (0x3ff000ULL << 20)
#define RA_MASK_VHT_RATES (RA_MASK_VHT_RATES_1SS | \
RA_MASK_VHT_RATES_2SS | \
RA_MASK_VHT_RATES_3SS)
#define RA_MASK_CCK_IN_HT 0x00005
#define RA_MASK_CCK_IN_VHT 0x00005
#define RA_MASK_OFDM_IN_VHT 0x00010
#define RA_MASK_OFDM_IN_HT_2G 0x00010
#define RA_MASK_OFDM_IN_HT_5G 0x00030
static u64 rtw_update_rate_mask(struct rtw_dev *rtwdev,
struct rtw_sta_info *si,
u64 ra_mask, bool is_vht_enable,
u8 wireless_set)
{
struct rtw_hal *hal = &rtwdev->hal;
const struct cfg80211_bitrate_mask *mask = si->mask;
u64 cfg_mask = GENMASK_ULL(63, 0);
u8 rssi_level, band;
if (wireless_set != WIRELESS_CCK) {
rssi_level = si->rssi_level;
if (rssi_level == 0)
ra_mask &= 0xffffffffffffffffULL;
else if (rssi_level == 1)
ra_mask &= 0xfffffffffffffff0ULL;
else if (rssi_level == 2)
ra_mask &= 0xffffffffffffefe0ULL;
else if (rssi_level == 3)
ra_mask &= 0xffffffffffffcfc0ULL;
else if (rssi_level == 4)
ra_mask &= 0xffffffffffff8f80ULL;
else if (rssi_level >= 5)
ra_mask &= 0xffffffffffff0f00ULL;
}
if (!si->use_cfg_mask)
return ra_mask;
band = hal->current_band_type;
if (band == RTW_BAND_2G) {
band = NL80211_BAND_2GHZ;
cfg_mask = mask->control[band].legacy;
} else if (band == RTW_BAND_5G) {
band = NL80211_BAND_5GHZ;
cfg_mask = u64_encode_bits(mask->control[band].legacy,
RA_MASK_OFDM_RATES);
}
if (!is_vht_enable) {
if (ra_mask & RA_MASK_HT_RATES_1SS)
cfg_mask |= u64_encode_bits(mask->control[band].ht_mcs[0],
RA_MASK_HT_RATES_1SS);
if (ra_mask & RA_MASK_HT_RATES_2SS)
cfg_mask |= u64_encode_bits(mask->control[band].ht_mcs[1],
RA_MASK_HT_RATES_2SS);
} else {
if (ra_mask & RA_MASK_VHT_RATES_1SS)
cfg_mask |= u64_encode_bits(mask->control[band].vht_mcs[0],
RA_MASK_VHT_RATES_1SS);
if (ra_mask & RA_MASK_VHT_RATES_2SS)
cfg_mask |= u64_encode_bits(mask->control[band].vht_mcs[1],
RA_MASK_VHT_RATES_2SS);
}
ra_mask &= cfg_mask;
return ra_mask;
}
void rtw_update_sta_info(struct rtw_dev *rtwdev, struct rtw_sta_info *si)
{
struct ieee80211_sta *sta = si->sta;
struct rtw_efuse *efuse = &rtwdev->efuse;
struct rtw_hal *hal = &rtwdev->hal;
u8 wireless_set;
u8 bw_mode;
u8 rate_id;
u8 rf_type = RF_1T1R;
u8 stbc_en = 0;
u8 ldpc_en = 0;
u8 tx_num = 1;
u64 ra_mask = 0;
bool is_vht_enable = false;
bool is_support_sgi = false;
if (sta->vht_cap.vht_supported) {
is_vht_enable = true;
ra_mask |= get_vht_ra_mask(sta);
if (sta->vht_cap.cap & IEEE80211_VHT_CAP_RXSTBC_MASK)
stbc_en = VHT_STBC_EN;
if (sta->vht_cap.cap & IEEE80211_VHT_CAP_RXLDPC)
ldpc_en = VHT_LDPC_EN;
} else if (sta->ht_cap.ht_supported) {
ra_mask |= (sta->ht_cap.mcs.rx_mask[1] << 20) |
(sta->ht_cap.mcs.rx_mask[0] << 12);
if (sta->ht_cap.cap & IEEE80211_HT_CAP_RX_STBC)
stbc_en = HT_STBC_EN;
if (sta->ht_cap.cap & IEEE80211_HT_CAP_LDPC_CODING)
ldpc_en = HT_LDPC_EN;
}
if (efuse->hw_cap.nss == 1)
ra_mask &= RA_MASK_VHT_RATES_1SS | RA_MASK_HT_RATES_1SS;
if (hal->current_band_type == RTW_BAND_5G) {
ra_mask |= (u64)sta->supp_rates[NL80211_BAND_5GHZ] << 4;
if (sta->vht_cap.vht_supported) {
ra_mask &= RA_MASK_VHT_RATES | RA_MASK_OFDM_IN_VHT;
wireless_set = WIRELESS_OFDM | WIRELESS_VHT;
} else if (sta->ht_cap.ht_supported) {
ra_mask &= RA_MASK_HT_RATES | RA_MASK_OFDM_IN_HT_5G;
wireless_set = WIRELESS_OFDM | WIRELESS_HT;
} else {
wireless_set = WIRELESS_OFDM;
}
} else if (hal->current_band_type == RTW_BAND_2G) {
ra_mask |= sta->supp_rates[NL80211_BAND_2GHZ];
if (sta->vht_cap.vht_supported) {
ra_mask &= RA_MASK_VHT_RATES | RA_MASK_CCK_IN_VHT |
RA_MASK_OFDM_IN_VHT;
wireless_set = WIRELESS_CCK | WIRELESS_OFDM |
WIRELESS_HT | WIRELESS_VHT;
} else if (sta->ht_cap.ht_supported) {
ra_mask &= RA_MASK_HT_RATES | RA_MASK_CCK_IN_HT |
RA_MASK_OFDM_IN_HT_2G;
wireless_set = WIRELESS_CCK | WIRELESS_OFDM |
WIRELESS_HT;
} else if (sta->supp_rates[0] <= 0xf) {
wireless_set = WIRELESS_CCK;
} else {
wireless_set = WIRELESS_CCK | WIRELESS_OFDM;
}
} else {
rtw_err(rtwdev, "Unknown band type\n");
wireless_set = 0;
}
switch (sta->bandwidth) {
case IEEE80211_STA_RX_BW_80:
bw_mode = RTW_CHANNEL_WIDTH_80;
is_support_sgi = sta->vht_cap.vht_supported &&
(sta->vht_cap.cap & IEEE80211_VHT_CAP_SHORT_GI_80);
break;
case IEEE80211_STA_RX_BW_40:
bw_mode = RTW_CHANNEL_WIDTH_40;
is_support_sgi = sta->ht_cap.ht_supported &&
(sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_40);
break;
default:
bw_mode = RTW_CHANNEL_WIDTH_20;
is_support_sgi = sta->ht_cap.ht_supported &&
(sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_20);
break;
}
if (sta->vht_cap.vht_supported && ra_mask & 0xffc00000) {
tx_num = 2;
rf_type = RF_2T2R;
} else if (sta->ht_cap.ht_supported && ra_mask & 0xfff00000) {
tx_num = 2;
rf_type = RF_2T2R;
}
rate_id = get_rate_id(wireless_set, bw_mode, tx_num);
ra_mask = rtw_update_rate_mask(rtwdev, si, ra_mask, is_vht_enable,
wireless_set);
si->bw_mode = bw_mode;
si->stbc_en = stbc_en;
si->ldpc_en = ldpc_en;
si->rf_type = rf_type;
si->wireless_set = wireless_set;
si->sgi_enable = is_support_sgi;
si->vht_enable = is_vht_enable;
si->ra_mask = ra_mask;