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path: root/drivers/net/wireless/ath/wcn36xx/main.c
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Diffstat (limited to 'drivers/net/wireless/ath/wcn36xx/main.c')
-rw-r--r--drivers/net/wireless/ath/wcn36xx/main.c288
1 files changed, 182 insertions, 106 deletions
diff --git a/drivers/net/wireless/ath/wcn36xx/main.c b/drivers/net/wireless/ath/wcn36xx/main.c
index 702b689c06df..706728fba72d 100644
--- a/drivers/net/wireless/ath/wcn36xx/main.c
+++ b/drivers/net/wireless/ath/wcn36xx/main.c
@@ -39,10 +39,10 @@ MODULE_PARM_DESC(debug_mask, "Debugging mask");
.max_power = 25, \
}
-#define CHAN5G(_freq, _idx) { \
+#define CHAN5G(_freq, _idx, _phy_val) { \
.band = NL80211_BAND_5GHZ, \
.center_freq = (_freq), \
- .hw_value = (_idx), \
+ .hw_value = (_phy_val) << HW_VALUE_PHY_SHIFT | HW_VALUE_CHANNEL(_idx), \
.max_power = 25, \
}
@@ -67,29 +67,29 @@ static struct ieee80211_channel wcn_2ghz_channels[] = {
};
static struct ieee80211_channel wcn_5ghz_channels[] = {
- CHAN5G(5180, 36),
- CHAN5G(5200, 40),
- CHAN5G(5220, 44),
- CHAN5G(5240, 48),
- CHAN5G(5260, 52),
- CHAN5G(5280, 56),
- CHAN5G(5300, 60),
- CHAN5G(5320, 64),
- CHAN5G(5500, 100),
- CHAN5G(5520, 104),
- CHAN5G(5540, 108),
- CHAN5G(5560, 112),
- CHAN5G(5580, 116),
- CHAN5G(5600, 120),
- CHAN5G(5620, 124),
- CHAN5G(5640, 128),
- CHAN5G(5660, 132),
- CHAN5G(5700, 140),
- CHAN5G(5745, 149),
- CHAN5G(5765, 153),
- CHAN5G(5785, 157),
- CHAN5G(5805, 161),
- CHAN5G(5825, 165)
+ CHAN5G(5180, 36, PHY_QUADRUPLE_CHANNEL_20MHZ_LOW_40MHZ_LOW),
+ CHAN5G(5200, 40, PHY_QUADRUPLE_CHANNEL_20MHZ_HIGH_40MHZ_LOW),
+ CHAN5G(5220, 44, PHY_QUADRUPLE_CHANNEL_20MHZ_LOW_40MHZ_HIGH),
+ CHAN5G(5240, 48, PHY_QUADRUPLE_CHANNEL_20MHZ_HIGH_40MHZ_HIGH),
+ CHAN5G(5260, 52, PHY_QUADRUPLE_CHANNEL_20MHZ_LOW_40MHZ_LOW),
+ CHAN5G(5280, 56, PHY_QUADRUPLE_CHANNEL_20MHZ_HIGH_40MHZ_LOW),
+ CHAN5G(5300, 60, PHY_QUADRUPLE_CHANNEL_20MHZ_LOW_40MHZ_HIGH),
+ CHAN5G(5320, 64, PHY_QUADRUPLE_CHANNEL_20MHZ_HIGH_40MHZ_HIGH),
+ CHAN5G(5500, 100, PHY_QUADRUPLE_CHANNEL_20MHZ_LOW_40MHZ_LOW),
+ CHAN5G(5520, 104, PHY_QUADRUPLE_CHANNEL_20MHZ_HIGH_40MHZ_LOW),
+ CHAN5G(5540, 108, PHY_QUADRUPLE_CHANNEL_20MHZ_LOW_40MHZ_HIGH),
+ CHAN5G(5560, 112, PHY_QUADRUPLE_CHANNEL_20MHZ_HIGH_40MHZ_HIGH),
+ CHAN5G(5580, 116, PHY_QUADRUPLE_CHANNEL_20MHZ_LOW_40MHZ_LOW),
+ CHAN5G(5600, 120, PHY_QUADRUPLE_CHANNEL_20MHZ_HIGH_40MHZ_LOW),
+ CHAN5G(5620, 124, PHY_QUADRUPLE_CHANNEL_20MHZ_LOW_40MHZ_HIGH),
+ CHAN5G(5640, 128, PHY_QUADRUPLE_CHANNEL_20MHZ_HIGH_40MHZ_HIGH),
+ CHAN5G(5660, 132, PHY_QUADRUPLE_CHANNEL_20MHZ_LOW_40MHZ_LOW),
+ CHAN5G(5700, 140, PHY_QUADRUPLE_CHANNEL_20MHZ_LOW_40MHZ_HIGH),
+ CHAN5G(5745, 149, PHY_QUADRUPLE_CHANNEL_20MHZ_LOW_40MHZ_LOW),
+ CHAN5G(5765, 153, PHY_QUADRUPLE_CHANNEL_20MHZ_HIGH_40MHZ_LOW),
+ CHAN5G(5785, 157, PHY_QUADRUPLE_CHANNEL_20MHZ_LOW_40MHZ_HIGH),
+ CHAN5G(5805, 161, PHY_QUADRUPLE_CHANNEL_20MHZ_HIGH_40MHZ_HIGH),
+ CHAN5G(5825, 165, 0)
};
#define RATE(_bitrate, _hw_rate, _flags) { \
@@ -163,7 +163,7 @@ static struct ieee80211_supported_band wcn_band_5ghz = {
.ampdu_density = IEEE80211_HT_MPDU_DENSITY_16,
.mcs = {
.rx_mask = { 0xff, 0, 0, 0, 0, 0, 0, 0, 0, 0, },
- .rx_highest = cpu_to_le16(72),
+ .rx_highest = cpu_to_le16(150),
.tx_params = IEEE80211_HT_MCS_TX_DEFINED,
}
}
@@ -354,8 +354,6 @@ static void wcn36xx_stop(struct ieee80211_hw *hw)
wcn36xx_dbg(WCN36XX_DBG_MAC, "mac stop\n");
- cancel_work_sync(&wcn->scan_work);
-
mutex_lock(&wcn->scan_lock);
if (wcn->scan_req) {
struct cfg80211_scan_info scan_info = {
@@ -378,12 +376,37 @@ static void wcn36xx_stop(struct ieee80211_hw *hw)
kfree(wcn->hal_buf);
}
-static int wcn36xx_config(struct ieee80211_hw *hw, u32 changed)
+static void wcn36xx_change_ps(struct wcn36xx *wcn, bool enable)
{
- struct wcn36xx *wcn = hw->priv;
struct ieee80211_vif *vif = NULL;
struct wcn36xx_vif *tmp;
+ list_for_each_entry(tmp, &wcn->vif_list, list) {
+ vif = wcn36xx_priv_to_vif(tmp);
+ if (enable && !wcn->sw_scan) {
+ if (vif->bss_conf.ps) /* ps allowed ? */
+ wcn36xx_pmc_enter_bmps_state(wcn, vif);
+ } else {
+ wcn36xx_pmc_exit_bmps_state(wcn, vif);
+ }
+ }
+}
+
+static void wcn36xx_change_opchannel(struct wcn36xx *wcn, int ch)
+{
+ struct ieee80211_vif *vif = NULL;
+ struct wcn36xx_vif *tmp;
+
+ list_for_each_entry(tmp, &wcn->vif_list, list) {
+ vif = wcn36xx_priv_to_vif(tmp);
+ wcn36xx_smd_switch_channel(wcn, vif, ch);
+ }
+}
+
+static int wcn36xx_config(struct ieee80211_hw *hw, u32 changed)
+{
+ struct wcn36xx *wcn = hw->priv;
+
wcn36xx_dbg(WCN36XX_DBG_MAC, "mac config changed 0x%08x\n", changed);
mutex_lock(&wcn->conf_mutex);
@@ -392,24 +415,29 @@ static int wcn36xx_config(struct ieee80211_hw *hw, u32 changed)
int ch = WCN36XX_HW_CHANNEL(wcn);
wcn36xx_dbg(WCN36XX_DBG_MAC, "wcn36xx_config channel switch=%d\n",
ch);
- list_for_each_entry(tmp, &wcn->vif_list, list) {
- vif = wcn36xx_priv_to_vif(tmp);
- wcn36xx_smd_switch_channel(wcn, vif, ch);
- }
- }
- if (changed & IEEE80211_CONF_CHANGE_PS) {
- list_for_each_entry(tmp, &wcn->vif_list, list) {
- vif = wcn36xx_priv_to_vif(tmp);
- if (hw->conf.flags & IEEE80211_CONF_PS) {
- if (vif->bss_conf.ps) /* ps allowed ? */
- wcn36xx_pmc_enter_bmps_state(wcn, vif);
- } else {
- wcn36xx_pmc_exit_bmps_state(wcn, vif);
- }
+ if (wcn->sw_scan_opchannel == ch) {
+ /* If channel is the initial operating channel, we may
+ * want to receive/transmit regular data packets, then
+ * simply stop the scan session and exit PS mode.
+ */
+ wcn36xx_smd_finish_scan(wcn, HAL_SYS_MODE_SCAN,
+ wcn->sw_scan_vif);
+ } else if (wcn->sw_scan) {
+ /* A scan is ongoing, do not change the operating
+ * channel, but start a scan session on the channel.
+ */
+ wcn36xx_smd_init_scan(wcn, HAL_SYS_MODE_SCAN,
+ wcn->sw_scan_vif);
+ wcn36xx_smd_start_scan(wcn, ch);
+ } else {
+ wcn36xx_change_opchannel(wcn, ch);
}
}
+ if (changed & IEEE80211_CONF_CHANGE_PS)
+ wcn36xx_change_ps(wcn, hw->conf.flags & IEEE80211_CONF_PS);
+
mutex_unlock(&wcn->conf_mutex);
return 0;
@@ -582,6 +610,15 @@ static int wcn36xx_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
}
}
}
+ /* FIXME: Only enable bmps support when encryption is enabled.
+ * For any reasons, when connected to open/no-security BSS,
+ * the wcn36xx controller in bmps mode does not forward
+ * 'wake-up' beacons despite AP sends DTIM with station AID.
+ * It could be due to a firmware issue or to the way driver
+ * configure the station.
+ */
+ if (vif->type == NL80211_IFTYPE_STATION)
+ vif_priv->allow_bmps = true;
break;
case DISABLE_KEY:
if (!(IEEE80211_KEY_FLAG_PAIRWISE & key_conf->flags)) {
@@ -614,55 +651,26 @@ out:
return ret;
}
-static void wcn36xx_hw_scan_worker(struct work_struct *work)
+static int wcn36xx_hw_scan(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_scan_request *hw_req)
{
- struct wcn36xx *wcn = container_of(work, struct wcn36xx, scan_work);
- struct cfg80211_scan_request *req = wcn->scan_req;
- u8 channels[WCN36XX_HAL_PNO_MAX_NETW_CHANNELS_EX];
- struct cfg80211_scan_info scan_info = {};
- bool aborted = false;
+ struct wcn36xx *wcn = hw->priv;
int i;
- wcn36xx_dbg(WCN36XX_DBG_MAC, "mac80211 scan %d channels worker\n", req->n_channels);
-
- for (i = 0; i < req->n_channels; i++)
- channels[i] = req->channels[i]->hw_value;
-
- wcn36xx_smd_update_scan_params(wcn, channels, req->n_channels);
-
- wcn36xx_smd_init_scan(wcn, HAL_SYS_MODE_SCAN);
- for (i = 0; i < req->n_channels; i++) {
- mutex_lock(&wcn->scan_lock);
- aborted = wcn->scan_aborted;
- mutex_unlock(&wcn->scan_lock);
-
- if (aborted)
- break;
-
- wcn->scan_freq = req->channels[i]->center_freq;
- wcn->scan_band = req->channels[i]->band;
-
- wcn36xx_smd_start_scan(wcn, req->channels[i]->hw_value);
- msleep(30);
- wcn36xx_smd_end_scan(wcn, req->channels[i]->hw_value);
-
- wcn->scan_freq = 0;
+ if (!get_feat_caps(wcn->fw_feat_caps, SCAN_OFFLOAD)) {
+ /* fallback to mac80211 software scan */
+ return 1;
}
- wcn36xx_smd_finish_scan(wcn, HAL_SYS_MODE_SCAN);
-
- scan_info.aborted = aborted;
- ieee80211_scan_completed(wcn->hw, &scan_info);
- mutex_lock(&wcn->scan_lock);
- wcn->scan_req = NULL;
- mutex_unlock(&wcn->scan_lock);
-}
+ /* For unknown reason, the hardware offloaded scan only works with
+ * 2.4Ghz channels, fallback to software scan in other cases.
+ */
+ for (i = 0; i < hw_req->req.n_channels; i++) {
+ if (hw_req->req.channels[i]->band != NL80211_BAND_2GHZ)
+ return 1;
+ }
-static int wcn36xx_hw_scan(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif,
- struct ieee80211_scan_request *hw_req)
-{
- struct wcn36xx *wcn = hw->priv;
mutex_lock(&wcn->scan_lock);
if (wcn->scan_req) {
mutex_unlock(&wcn->scan_lock);
@@ -674,12 +682,6 @@ static int wcn36xx_hw_scan(struct ieee80211_hw *hw,
mutex_unlock(&wcn->scan_lock);
- if (!get_feat_caps(wcn->fw_feat_caps, SCAN_OFFLOAD)) {
- /* legacy manual/sw scan */
- schedule_work(&wcn->scan_work);
- return 0;
- }
-
return wcn36xx_smd_start_hw_scan(wcn, vif, &hw_req->req);
}
@@ -696,16 +698,35 @@ static void wcn36xx_cancel_hw_scan(struct ieee80211_hw *hw,
/* ieee80211_scan_completed will be called on FW scan
* indication */
wcn36xx_smd_stop_hw_scan(wcn);
- } else {
- struct cfg80211_scan_info scan_info = {
- .aborted = true,
- };
-
- cancel_work_sync(&wcn->scan_work);
- ieee80211_scan_completed(wcn->hw, &scan_info);
}
}
+static void wcn36xx_sw_scan_start(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ const u8 *mac_addr)
+{
+ struct wcn36xx *wcn = hw->priv;
+ struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif);
+
+ wcn->sw_scan = true;
+ wcn->sw_scan_vif = vif;
+ if (vif_priv->sta_assoc)
+ wcn->sw_scan_opchannel = WCN36XX_HW_CHANNEL(wcn);
+ else
+ wcn->sw_scan_opchannel = 0;
+}
+
+static void wcn36xx_sw_scan_complete(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif)
+{
+ struct wcn36xx *wcn = hw->priv;
+
+ /* ensure that any scan session is finished */
+ wcn36xx_smd_finish_scan(wcn, HAL_SYS_MODE_SCAN, wcn->sw_scan_vif);
+ wcn->sw_scan = false;
+ wcn->sw_scan_opchannel = 0;
+}
+
static void wcn36xx_update_allowed_rates(struct ieee80211_sta *sta,
enum nl80211_band band)
{
@@ -745,7 +766,16 @@ static void wcn36xx_update_allowed_rates(struct ieee80211_sta *sta,
sta->ht_cap.mcs.rx_mask,
sizeof(sta->ht_cap.mcs.rx_mask));
}
+
+ if (sta->vht_cap.vht_supported) {
+ sta_priv->supported_rates.op_rate_mode = STA_11ac;
+ sta_priv->supported_rates.vht_rx_mcs_map =
+ sta->vht_cap.vht_mcs.rx_mcs_map;
+ sta_priv->supported_rates.vht_tx_mcs_map =
+ sta->vht_cap.vht_mcs.tx_mcs_map;
+ }
}
+
void wcn36xx_set_default_rates(struct wcn36xx_hal_supported_rates *rates)
{
u16 ofdm_rates[WCN36XX_HAL_NUM_OFDM_RATES] = {
@@ -772,6 +802,14 @@ void wcn36xx_set_default_rates(struct wcn36xx_hal_supported_rates *rates)
sizeof(*ofdm_rates) * WCN36XX_HAL_NUM_OFDM_RATES);
rates->supported_mcs_set[0] = 0xFF;
}
+
+void wcn36xx_set_default_rates_v1(struct wcn36xx_hal_supported_rates_v1 *rates)
+{
+ rates->op_rate_mode = STA_11ac;
+ rates->vht_rx_mcs_map = IEEE80211_VHT_MCS_SUPPORT_0_9;
+ rates->vht_tx_mcs_map = IEEE80211_VHT_MCS_SUPPORT_0_9;
+}
+
static void wcn36xx_bss_info_changed(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_bss_conf *bss_conf,
@@ -879,6 +917,7 @@ static void wcn36xx_bss_info_changed(struct ieee80211_hw *hw,
vif->addr,
bss_conf->aid);
vif_priv->sta_assoc = false;
+ vif_priv->allow_bmps = false;
wcn36xx_smd_set_link_st(wcn,
bss_conf->bssid,
vif->addr,
@@ -1083,6 +1122,7 @@ static int wcn36xx_ampdu_action(struct ieee80211_hw *hw,
u16 tid = params->tid;
u16 *ssn = &params->ssn;
int ret = 0;
+ u8 session;
wcn36xx_dbg(WCN36XX_DBG_MAC, "mac ampdu action action %d tid %d\n",
action, tid);
@@ -1092,10 +1132,11 @@ static int wcn36xx_ampdu_action(struct ieee80211_hw *hw,
switch (action) {
case IEEE80211_AMPDU_RX_START:
sta_priv->tid = tid;
- wcn36xx_smd_add_ba_session(wcn, sta, tid, ssn, 0,
- get_sta_index(vif, sta_priv));
- wcn36xx_smd_add_ba(wcn);
- wcn36xx_smd_trigger_ba(wcn, get_sta_index(vif, sta_priv));
+ session = wcn36xx_smd_add_ba_session(wcn, sta, tid, ssn, 0,
+ get_sta_index(vif, sta_priv));
+ wcn36xx_smd_add_ba(wcn, session);
+ wcn36xx_smd_trigger_ba(wcn, get_sta_index(vif, sta_priv), tid,
+ session);
break;
case IEEE80211_AMPDU_RX_STOP:
wcn36xx_smd_del_ba(wcn, tid, get_sta_index(vif, sta_priv));
@@ -1149,6 +1190,8 @@ static const struct ieee80211_ops wcn36xx_ops = {
.set_key = wcn36xx_set_key,
.hw_scan = wcn36xx_hw_scan,
.cancel_hw_scan = wcn36xx_cancel_hw_scan,
+ .sw_scan_start = wcn36xx_sw_scan_start,
+ .sw_scan_complete = wcn36xx_sw_scan_complete,
.bss_info_changed = wcn36xx_bss_info_changed,
.set_rts_threshold = wcn36xx_set_rts_threshold,
.sta_add = wcn36xx_sta_add,
@@ -1158,6 +1201,35 @@ static const struct ieee80211_ops wcn36xx_ops = {
CFG80211_TESTMODE_CMD(wcn36xx_tm_cmd)
};
+static void
+wcn36xx_set_ieee80211_vht_caps(struct ieee80211_sta_vht_cap *vht_cap)
+{
+ vht_cap->vht_supported = true;
+
+ vht_cap->cap = (IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895 |
+ IEEE80211_VHT_CAP_SHORT_GI_80 |
+ IEEE80211_VHT_CAP_RXSTBC_1 |
+ IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
+ IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE |
+ 3 << IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT |
+ 7 << IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT);
+
+ vht_cap->vht_mcs.rx_mcs_map =
+ cpu_to_le16(IEEE80211_VHT_MCS_SUPPORT_0_9 |
+ IEEE80211_VHT_MCS_NOT_SUPPORTED << 2 |
+ IEEE80211_VHT_MCS_NOT_SUPPORTED << 4 |
+ IEEE80211_VHT_MCS_NOT_SUPPORTED << 6 |
+ IEEE80211_VHT_MCS_NOT_SUPPORTED << 8 |
+ IEEE80211_VHT_MCS_NOT_SUPPORTED << 10 |
+ IEEE80211_VHT_MCS_NOT_SUPPORTED << 12 |
+ IEEE80211_VHT_MCS_NOT_SUPPORTED << 14);
+
+ vht_cap->vht_mcs.rx_highest = cpu_to_le16(433);
+ vht_cap->vht_mcs.tx_highest = vht_cap->vht_mcs.rx_highest;
+
+ vht_cap->vht_mcs.tx_mcs_map = vht_cap->vht_mcs.rx_mcs_map;
+}
+
static int wcn36xx_init_ieee80211(struct wcn36xx *wcn)
{
static const u32 cipher_suites[] = {
@@ -1173,6 +1245,7 @@ static int wcn36xx_init_ieee80211(struct wcn36xx *wcn)
ieee80211_hw_set(wcn->hw, SIGNAL_DBM);
ieee80211_hw_set(wcn->hw, HAS_RATE_CONTROL);
ieee80211_hw_set(wcn->hw, SINGLE_SCAN_ON_ALL_BANDS);
+ ieee80211_hw_set(wcn->hw, REPORTS_TX_ACK_STATUS);
wcn->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
BIT(NL80211_IFTYPE_AP) |
@@ -1183,6 +1256,9 @@ static int wcn36xx_init_ieee80211(struct wcn36xx *wcn)
if (wcn->rf_id != RF_IRIS_WCN3620)
wcn->hw->wiphy->bands[NL80211_BAND_5GHZ] = &wcn_band_5ghz;
+ if (wcn->rf_id == RF_IRIS_WCN3680)
+ wcn36xx_set_ieee80211_vht_caps(&wcn_band_5ghz.vht_cap);
+
wcn->hw->wiphy->max_scan_ssids = WCN36XX_MAX_SCAN_SSIDS;
wcn->hw->wiphy->max_scan_ie_len = WCN36XX_MAX_SCAN_IE_LEN;
@@ -1280,6 +1356,8 @@ static int wcn36xx_platform_get_resources(struct wcn36xx *wcn,
if (iris_node) {
if (of_device_is_compatible(iris_node, "qcom,wcn3620"))
wcn->rf_id = RF_IRIS_WCN3620;
+ if (of_device_is_compatible(iris_node, "qcom,wcn3680"))
+ wcn->rf_id = RF_IRIS_WCN3680;
of_node_put(iris_node);
}
@@ -1326,8 +1404,6 @@ static int wcn36xx_probe(struct platform_device *pdev)
goto out_wq;
}
- INIT_WORK(&wcn->scan_work, wcn36xx_hw_scan_worker);
-
wcn->smd_channel = qcom_wcnss_open_channel(wcnss, "WLAN_CTRL", wcn36xx_smd_rsp_process, hw);
if (IS_ERR(wcn->smd_channel)) {
wcn36xx_err("failed to open WLAN_CTRL channel\n");
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.