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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 <linux/devcoredump.h>
#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"
#include "sar.h"
#include "sdio.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);
/* EDCCA is enabled during normal behavior. For debugging purpose in
* a noisy environment, it can be disabled via edcca debugfs. Because
* all rtw88 devices will probably be affected if environment is noisy,
* rtw_edcca_enabled is just declared by driver instead of by device.
* So, turning it off will take effect for all rtw88 devices before
* there is a tough reason to maintain rtw_edcca_enabled by device.
*/
bool rtw_edcca_enabled = true;
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 = 5720, .hw_value = 144,},
{.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,},
};
static const struct ieee80211_iface_limit rtw_iface_limits[] = {
{
.max = 1,
.types = BIT(NL80211_IFTYPE_STATION),
},
{
.max = 1,
.types = BIT(NL80211_IFTYPE_AP) |
BIT(NL80211_IFTYPE_P2P_CLIENT) |
BIT(NL80211_IFTYPE_P2P_GO)
}
};
static const struct ieee80211_iface_combination rtw_iface_combs[] = {
{
.limits = rtw_iface_limits,
.n_limits = ARRAY_SIZE(rtw_iface_limits),
.max_interfaces = 2,
.num_different_channels = 1,
}
};
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, 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 LINUX_VERSION_CODE >= KERNEL_VERSION(6, 0, 0)
if (vif->cfg.assoc)
#else
if (vif->bss_conf.assoc)
#endif
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;
const struct rtw_chip_info *chip = rtwdev->chip;
struct rtw_watch_dog_iter_data data = {};
bool busy_traffic = test_bit(RTW_FLAG_BUSY_TRAFFIC, rtwdev->flags);
u32 tx_unicast_shift, rx_unicast_shift;
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;
tx_unicast_shift = stats->tx_unicast >> RTW_TP_SHIFT;
rx_unicast_shift = stats->rx_unicast >> RTW_TP_SHIFT;
ewma_tp_add(&stats->tx_ewma_tp, tx_unicast_shift);
ewma_tp_add(&stats->rx_ewma_tp, rx_unicast_shift);
stats->tx_throughput = ewma_tp_read(&stats->tx_ewma_tp);
stats->rx_throughput = ewma_tp_read(&stats->rx_ewma_tp);
if (rtw_hci_type(rtwdev) == RTW_HCI_TYPE_USB && chip->ops->rx_aggregation) {
if (tx_unicast_shift < 1 && rx_unicast_shift < 1)
chip->ops->rx_aggregation(rtwdev, false);
else
chip->ops->rx_aggregation(rtwdev, true);
}
/* 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;
int received_beacons = rtwdev->dm_info.cur_pkt_count.num_bcn_pkt;
/* make sure BB/RF is working for dynamic mech */
rtw_leave_lps(rtwdev);
rtw_coex_wl_status_check(rtwdev);
rtw_coex_query_bt_hid_list(rtwdev);
if (rtwdev->chip->id == RTW_CHIP_TYPE_8821A && rtwdev->efuse.btcoex)
rtw_coex_query_bt_info(rtwdev);
rtw_phy_dynamic_mechanism(rtwdev);
data.rtwdev = rtwdev;
/* rtw_iterate_vifs internally uses an atomic iterator which is needed
* to avoid taking local->iflist_mtx mutex
*/
rtw_iterate_vifs(rtwdev, rtw_vif_watch_dog_iter, &data);
if (!rtw_fw_feature_check(&rtwdev->fw, FW_FEATURE_BCN_FILTER) &&
data.rtwvif) {
int beacon_int = rtwvif_to_vif(data.rtwvif)->bss_conf.beacon_int;
int watchdog_delay = 2000000 / 1024; /* TU */
int expected_beacons = DIV_ROUND_UP(watchdog_delay, beacon_int);
rtwdev->beacon_loss = received_beacons < expected_beacons / 2;
}
/* 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
*
* rtw_recalc_lps() iterate vifs and determine if driver can enter
* ps by vif->type and vif->cfg.ps, all we need to do here is to
* get that vif and check if device is having traffic more than the
* threshold.
*/
if (rtwdev->ps_enabled && data.rtwvif && !ps_active &&
!rtwdev->beacon_loss && !rtwdev->ap_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 void rtw_ips_work(struct work_struct *work)
{
struct rtw_dev *rtwdev = container_of(work, struct rtw_dev, ips_work);
mutex_lock(&rtwdev->mutex);
if (rtwdev->hw->conf.flags & IEEE80211_CONF_IDLE)
rtw_enter_ips(rtwdev);
mutex_unlock(&rtwdev->mutex);
}
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;
}
static void rtw_sta_rc_work(struct work_struct *work)
{
struct rtw_sta_info *si = container_of(work, struct rtw_sta_info,
rc_work);
struct rtw_dev *rtwdev = si->rtwdev;
mutex_lock(&rtwdev->mutex);
rtw_update_sta_info(rtwdev, si, true);
mutex_unlock(&rtwdev->mutex);
}
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;
struct rtw_vif *rtwvif = (struct rtw_vif *)vif->drv_priv;
int i;
si->mac_id = rtw_acquire_macid(rtwdev);
if (si->mac_id >= RTW_MAX_MAC_ID_NUM)
return -ENOSPC;
#if LINUX_VERSION_CODE >= KERNEL_VERSION(6, 0, 0)
if (vif->type == NL80211_IFTYPE_STATION && vif->cfg.assoc == 0)
#else
if (vif->type == NL80211_IFTYPE_STATION && vif->bss_conf.assoc == 0)
#endif
rtwvif->mac_id = si->mac_id;
si->rtwdev = rtwdev;
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]);
INIT_WORK(&si->rc_work, rtw_sta_rc_work);
rtw_update_sta_info(rtwdev, si, true);
rtw_fw_media_status_report(rtwdev, si->mac_id, true);
rtwdev->sta_cnt++;
rtwdev->beacon_loss = false;
rtw_dbg(rtwdev, RTW_DBG_STATE, "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;
cancel_work_sync(&si->rc_work);
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_dbg(rtwdev, RTW_DBG_STATE, "sta %pM with macid %d left\n",
sta->addr, si->mac_id);
}
struct rtw_fwcd_hdr {
u32 item;
u32 size;
u32 padding1;
u32 padding2;
} __packed;
static int rtw_fwcd_prep(struct rtw_dev *rtwdev)
{
const struct rtw_chip_info *chip = rtwdev->chip;
struct rtw_fwcd_desc *desc = &rtwdev->fw.fwcd_desc;
const struct rtw_fwcd_segs *segs = chip->fwcd_segs;
u32 prep_size = chip->fw_rxff_size + sizeof(struct rtw_fwcd_hdr);
u8 i;
if (segs) {
prep_size += segs->num * sizeof(struct rtw_fwcd_hdr);
for (i = 0; i < segs->num; i++)
prep_size += segs->segs[i];
}
desc->data = vmalloc(prep_size);
if (!desc->data)
return -ENOMEM;
desc->size = prep_size;
desc->next = desc->data;
return 0;
}
static u8 *rtw_fwcd_next(struct rtw_dev *rtwdev, u32 item, u32 size)
{
struct rtw_fwcd_desc *desc = &rtwdev->fw.fwcd_desc;
struct rtw_fwcd_hdr *hdr;
u8 *next;
if (!desc->data) {
rtw_dbg(rtwdev, RTW_DBG_FW, "fwcd isn't prepared successfully\n");
return NULL;
}
next = desc->next + sizeof(struct rtw_fwcd_hdr);
if (next - desc->data + size > desc->size) {
rtw_dbg(rtwdev, RTW_DBG_FW, "fwcd isn't prepared enough\n");
return NULL;
}
hdr = (struct rtw_fwcd_hdr *)(desc->next);
hdr->item = item;
hdr->size = size;
hdr->padding1 = 0x01234567;
hdr->padding2 = 0x89abcdef;
desc->next = next + size;
return next;
}
static void rtw_fwcd_dump(struct rtw_dev *rtwdev)
{
struct rtw_fwcd_desc *desc = &rtwdev->fw.fwcd_desc;
rtw_dbg(rtwdev, RTW_DBG_FW, "dump fwcd\n");
/* Data will be freed after lifetime of device coredump. After calling
* dev_coredump, data is supposed to be handled by the device coredump
* framework. Note that a new dump will be discarded if a previous one
* hasn't been released yet.
*/
dev_coredumpv(rtwdev->dev, desc->data, desc->size, GFP_KERNEL);
}
static void rtw_fwcd_free(struct rtw_dev *rtwdev, bool free_self)
{
struct rtw_fwcd_desc *desc = &rtwdev->fw.fwcd_desc;
if (free_self) {
rtw_dbg(rtwdev, RTW_DBG_FW, "free fwcd by self\n");
vfree(desc->data);
}
desc->data = NULL;
desc->next = NULL;
}
static int rtw_fw_dump_crash_log(struct rtw_dev *rtwdev)
{
u32 size = rtwdev->chip->fw_rxff_size;
u32 *buf;
u8 seq;
buf = (u32 *)rtw_fwcd_next(rtwdev, RTW_FWCD_TLV, size);
if (!buf)
return -ENOMEM;
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");
return -EINVAL;
}
if (GET_FW_DUMP_LEN(buf) == 0) {
rtw_dbg(rtwdev, RTW_DBG_FW, "fw crash dump's length is 0\n");
return -EINVAL;
}
seq = GET_FW_DUMP_SEQ(buf);
if (seq > 0) {
rtw_dbg(rtwdev, RTW_DBG_FW,
"fw crash dump's seq is wrong: %d\n", seq);
return -EINVAL;
}
return 0;
}
int rtw_dump_fw(struct rtw_dev *rtwdev, const u32 ocp_src, u32 size,
u32 fwcd_item)
{
u32 rxff = rtwdev->chip->fw_rxff_size;
u32 dump_size, done_size = 0;
u8 *buf;
int ret;
buf = rtw_fwcd_next(rtwdev, fwcd_item, size);
if (!buf)
return -ENOMEM;
while (size) {
dump_size = size > rxff ? rxff : size;
ret = rtw_ddma_to_fw_fifo(rtwdev, ocp_src + done_size,
dump_size);
if (ret) {
rtw_err(rtwdev,
"ddma fw 0x%x [+0x%x] to fw fifo fail\n",
ocp_src, done_size);
return ret;
}
ret = rtw_fw_dump_fifo(rtwdev, RTW_FW_FIFO_SEL_RXBUF_FW, 0,
dump_size, (u32 *)(buf + done_size));
if (ret) {
rtw_err(rtwdev,
"dump fw 0x%x [+0x%x] from fw fifo fail\n",
ocp_src, done_size);
return ret;
}
size -= dump_size;
done_size += dump_size;
}
return 0;
}
EXPORT_SYMBOL(rtw_dump_fw);
int rtw_dump_reg(struct rtw_dev *rtwdev, const u32 addr, const u32 size)
{
u8 *buf;
u32 i;
if (addr & 0x3) {
WARN(1, "should be 4-byte aligned, addr = 0x%08x\n", addr);
return -EINVAL;
}
buf = rtw_fwcd_next(rtwdev, RTW_FWCD_REG, size);
if (!buf)
return -ENOMEM;
for (i = 0; i < size; i += 4)
*(u32 *)(buf + i) = rtw_read32(rtwdev, addr + i);
return 0;
}
EXPORT_SYMBOL(rtw_dump_reg);
void rtw_vif_assoc_changed(struct rtw_vif *rtwvif,
struct ieee80211_bss_conf *conf)
{
#if LINUX_VERSION_CODE >= KERNEL_VERSION(6, 0, 0)
struct ieee80211_vif *vif = NULL;
if (conf)
vif = container_of(conf, struct ieee80211_vif, bss_conf);
if (conf && vif->cfg.assoc) {
rtwvif->aid = vif->cfg.aid;
#else
if (conf && conf->assoc) {
rtwvif->aid = conf->aid;
#endif
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 __fw_recovery_work(struct rtw_dev *rtwdev)
{
int ret = 0;
set_bit(RTW_FLAG_RESTARTING, rtwdev->flags);
clear_bit(RTW_FLAG_RESTART_TRIGGERING, rtwdev->flags);
ret = rtw_fwcd_prep(rtwdev);
if (ret)
goto free;
ret = rtw_fw_dump_crash_log(rtwdev);
if (ret)
goto free;
ret = rtw_chip_dump_fw_crash(rtwdev);
if (ret)
goto free;
rtw_fwcd_dump(rtwdev);
free:
rtw_fwcd_free(rtwdev, !!ret);
rtw_write8(rtwdev, REG_MCU_TST_CFG, 0);
WARN(1, "firmware crash, start reset and recover\n");
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);
bitmap_zero(rtwdev->hw_port, RTW_PORT_NUM);
rtw_enter_ips(rtwdev);
}
static void rtw_fw_recovery_work(struct work_struct *work)
{
struct rtw_dev *rtwdev = container_of(work, struct rtw_dev,
fw_recovery_work);
mutex_lock(&rtwdev->mutex);
__fw_recovery_work(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_set_rx_freq_band(struct rtw_rx_pkt_stat *pkt_stat, u8 channel)
{
if (IS_CH_2G_BAND(channel))
pkt_stat->band = NL80211_BAND_2GHZ;
else if (IS_CH_5G_BAND(channel))
pkt_stat->band = NL80211_BAND_5GHZ;
else
return;
pkt_stat->freq = ieee80211_channel_to_frequency(channel, pkt_stat->band);
}
EXPORT_SYMBOL(rtw_set_rx_freq_band);
void rtw_set_dtim_period(struct rtw_dev *rtwdev, int dtim_period)
{
rtw_write32_set(rtwdev, REG_TCR, BIT_TCR_UPDATE_TIMIE);
rtw_write8(rtwdev, REG_DTIM_COUNTER_ROOT, dtim_period - 1);
}
void rtw_update_channel(struct rtw_dev *rtwdev, u8 center_channel,
u8 primary_channel, enum rtw_supported_band band,
enum rtw_bandwidth bandwidth)
{
enum nl80211_band nl_band = rtw_hw_to_nl80211_band(band);
struct rtw_hal *hal = &rtwdev->hal;
u8 *cch_by_bw = hal->cch_by_bw;
u32 center_freq, primary_freq;
enum rtw_sar_bands sar_band;
u8 primary_channel_idx;
center_freq = ieee80211_channel_to_frequency(center_channel, nl_band);
primary_freq = ieee80211_channel_to_frequency(primary_channel, nl_band);
/* assign the center channel used while 20M bw is selected */
cch_by_bw[RTW_CHANNEL_WIDTH_20] = primary_channel;
/* assign the center channel used while current bw is selected */
cch_by_bw[bandwidth] = center_channel;
switch (bandwidth) {
case RTW_CHANNEL_WIDTH_20:
default:
primary_channel_idx = RTW_SC_DONT_CARE;
break;
case RTW_CHANNEL_WIDTH_40:
if (primary_freq > center_freq)
primary_channel_idx = RTW_SC_20_UPPER;
else
primary_channel_idx = RTW_SC_20_LOWER;
break;
case RTW_CHANNEL_WIDTH_80:
if (primary_freq > center_freq) {
if (primary_freq - center_freq == 10)
primary_channel_idx = RTW_SC_20_UPPER;
else
primary_channel_idx = RTW_SC_20_UPMOST;
/* assign the center channel used
* while 40M bw is selected
*/
cch_by_bw[RTW_CHANNEL_WIDTH_40] = center_channel + 4;
} else {
if (center_freq - primary_freq == 10)
primary_channel_idx = RTW_SC_20_LOWER;
else
primary_channel_idx = RTW_SC_20_LOWEST;
/* assign the center channel used
* while 40M bw is selected
*/
cch_by_bw[RTW_CHANNEL_WIDTH_40] = center_channel - 4;
}
break;
}
switch (center_channel) {
case 1 ... 14:
sar_band = RTW_SAR_BAND_0;
break;
case 36 ... 64:
sar_band = RTW_SAR_BAND_1;
break;
case 100 ... 144:
sar_band = RTW_SAR_BAND_3;
break;
case 149 ... 177:
sar_band = RTW_SAR_BAND_4;
break;
default:
WARN(1, "unknown ch(%u) to SAR band\n", center_channel);
sar_band = RTW_SAR_BAND_0;
break;
}
hal->current_primary_channel_index = primary_channel_idx;
hal->current_band_width = bandwidth;
hal->primary_channel = primary_channel;
hal->current_channel = center_channel;
hal->current_band_type = band;
hal->sar_band = sar_band;
}
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;
u32 primary_freq, center_freq;
u8 center_chan;
u8 bandwidth = RTW_CHANNEL_WIDTH_20;
center_chan = channel->hw_value;
primary_freq = channel->center_freq;
center_freq = chandef->center_freq1;
switch (width) {
case NL80211_CHAN_WIDTH_20_NOHT:
case NL80211_CHAN_WIDTH_20:
bandwidth = RTW_CHANNEL_WIDTH_20;
break;
case NL80211_CHAN_WIDTH_40:
bandwidth = RTW_CHANNEL_WIDTH_40;
if (primary_freq > center_freq)
center_chan -= 2;
else
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)
center_chan -= 2;
else
center_chan -= 6;
} else {
if (center_freq - primary_freq == 10)
center_chan += 2;
else
center_chan += 6;
}
break;
default:
center_chan = 0;
break;
}
chan_params->center_chan = center_chan;
chan_params->bandwidth = bandwidth;
chan_params->primary_chan = channel->hw_value;
}
void rtw_set_channel(struct rtw_dev *rtwdev)
{
const struct rtw_chip_info *chip = rtwdev->chip;
struct ieee80211_hw *hw = rtwdev->hw;
struct rtw_hal *hal = &rtwdev->hal;
struct rtw_channel_params ch_param;
u8 center_chan, primary_chan, bandwidth, band;
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;
primary_chan = ch_param.primary_chan;
bandwidth = ch_param.bandwidth;
band = ch_param.center_chan > 14 ? RTW_BAND_5G : RTW_BAND_2G;
rtw_update_channel(rtwdev, center_chan, primary_chan, band, bandwidth);
if (rtwdev->scan_info.op_chan)
rtw_store_op_chan(rtwdev, true);
chip->ops->set_channel(rtwdev, center_chan, bandwidth,
hal->current_primary_channel_index);
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)
{
const 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;
}