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path: root/drivers/net/wireless/ath/wcn36xx
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Diffstat (limited to 'drivers/net/wireless/ath/wcn36xx')
-rw-r--r--drivers/net/wireless/ath/wcn36xx/debug.c2
-rw-r--r--drivers/net/wireless/ath/wcn36xx/dxe.c49
-rw-r--r--drivers/net/wireless/ath/wcn36xx/hal.h38
-rw-r--r--drivers/net/wireless/ath/wcn36xx/main.c55
-rw-r--r--drivers/net/wireless/ath/wcn36xx/pmc.c13
-rw-r--r--drivers/net/wireless/ath/wcn36xx/smd.c189
-rw-r--r--drivers/net/wireless/ath/wcn36xx/smd.h4
-rw-r--r--drivers/net/wireless/ath/wcn36xx/txrx.c147
-rw-r--r--drivers/net/wireless/ath/wcn36xx/txrx.h3
-rw-r--r--drivers/net/wireless/ath/wcn36xx/wcn36xx.h7
10 files changed, 414 insertions, 93 deletions
diff --git a/drivers/net/wireless/ath/wcn36xx/debug.c b/drivers/net/wireless/ath/wcn36xx/debug.c
index 389b5e7129a6..6af306ae41ad 100644
--- a/drivers/net/wireless/ath/wcn36xx/debug.c
+++ b/drivers/net/wireless/ath/wcn36xx/debug.c
@@ -120,7 +120,7 @@ static ssize_t write_file_dump(struct file *file,
if (begin == NULL)
break;
- if (kstrtou32(begin, 0, &arg[i]) != 0)
+ if (kstrtos32(begin, 0, &arg[i]) != 0)
break;
}
diff --git a/drivers/net/wireless/ath/wcn36xx/dxe.c b/drivers/net/wireless/ath/wcn36xx/dxe.c
index 8e1dbfda6538..aff04ef66266 100644
--- a/drivers/net/wireless/ath/wcn36xx/dxe.c
+++ b/drivers/net/wireless/ath/wcn36xx/dxe.c
@@ -403,8 +403,21 @@ static void reap_tx_dxes(struct wcn36xx *wcn, struct wcn36xx_dxe_ch *ch)
dma_unmap_single(wcn->dev, ctl->desc->src_addr_l,
ctl->skb->len, DMA_TO_DEVICE);
info = IEEE80211_SKB_CB(ctl->skb);
- if (!(info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS)) {
- /* Keep frame until TX status comes */
+ if (info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS) {
+ if (info->flags & IEEE80211_TX_CTL_NO_ACK) {
+ info->flags |= IEEE80211_TX_STAT_NOACK_TRANSMITTED;
+ ieee80211_tx_status_irqsafe(wcn->hw, ctl->skb);
+ } else {
+ /* Wait for the TX ack indication or timeout... */
+ spin_lock(&wcn->dxe_lock);
+ if (WARN_ON(wcn->tx_ack_skb))
+ ieee80211_free_txskb(wcn->hw, wcn->tx_ack_skb);
+ wcn->tx_ack_skb = ctl->skb; /* Tracking ref */
+ mod_timer(&wcn->tx_ack_timer, jiffies + HZ / 10);
+ spin_unlock(&wcn->dxe_lock);
+ }
+ /* do not free, ownership transferred to mac80211 status cb */
+ } else {
ieee80211_free_txskb(wcn->hw, ctl->skb);
}
@@ -426,7 +439,6 @@ static irqreturn_t wcn36xx_irq_tx_complete(int irq, void *dev)
{
struct wcn36xx *wcn = (struct wcn36xx *)dev;
int int_src, int_reason;
- bool transmitted = false;
wcn36xx_dxe_read_register(wcn, WCN36XX_DXE_INT_SRC_RAW_REG, &int_src);
@@ -466,7 +478,6 @@ static irqreturn_t wcn36xx_irq_tx_complete(int irq, void *dev)
if (int_reason & (WCN36XX_CH_STAT_INT_DONE_MASK |
WCN36XX_CH_STAT_INT_ED_MASK)) {
reap_tx_dxes(wcn, &wcn->dxe_tx_h_ch);
- transmitted = true;
}
}
@@ -479,7 +490,6 @@ static irqreturn_t wcn36xx_irq_tx_complete(int irq, void *dev)
WCN36XX_DXE_0_INT_CLR,
WCN36XX_INT_MASK_CHAN_TX_L);
-
if (int_reason & WCN36XX_CH_STAT_INT_ERR_MASK ) {
wcn36xx_dxe_write_register(wcn,
WCN36XX_DXE_0_INT_ERR_CLR,
@@ -507,25 +517,8 @@ static irqreturn_t wcn36xx_irq_tx_complete(int irq, void *dev)
if (int_reason & (WCN36XX_CH_STAT_INT_DONE_MASK |
WCN36XX_CH_STAT_INT_ED_MASK)) {
reap_tx_dxes(wcn, &wcn->dxe_tx_l_ch);
- transmitted = true;
- }
- }
-
- spin_lock(&wcn->dxe_lock);
- if (wcn->tx_ack_skb && transmitted) {
- struct ieee80211_tx_info *info = IEEE80211_SKB_CB(wcn->tx_ack_skb);
-
- /* TX complete, no need to wait for 802.11 ack indication */
- if (info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS &&
- info->flags & IEEE80211_TX_CTL_NO_ACK) {
- info->flags |= IEEE80211_TX_STAT_NOACK_TRANSMITTED;
- del_timer(&wcn->tx_ack_timer);
- ieee80211_tx_status_irqsafe(wcn->hw, wcn->tx_ack_skb);
- wcn->tx_ack_skb = NULL;
- ieee80211_wake_queues(wcn->hw);
}
}
- spin_unlock(&wcn->dxe_lock);
return IRQ_HANDLED;
}
@@ -613,6 +606,10 @@ static int wcn36xx_rx_handle_packets(struct wcn36xx *wcn,
dxe = ctl->desc;
while (!(READ_ONCE(dxe->ctrl) & WCN36xx_DXE_CTRL_VLD)) {
+ /* do not read until we own DMA descriptor */
+ dma_rmb();
+
+ /* read/modify DMA descriptor */
skb = ctl->skb;
dma_addr = dxe->dst_addr_l;
ret = wcn36xx_dxe_fill_skb(wcn->dev, ctl, GFP_ATOMIC);
@@ -623,9 +620,15 @@ static int wcn36xx_rx_handle_packets(struct wcn36xx *wcn,
dma_unmap_single(wcn->dev, dma_addr, WCN36XX_PKT_SIZE,
DMA_FROM_DEVICE);
wcn36xx_rx_skb(wcn, skb);
- } /* else keep old skb not submitted and use it for rx DMA */
+ }
+ /* else keep old skb not submitted and reuse it for rx DMA
+ * (dropping the packet that it contained)
+ */
+ /* flush descriptor changes before re-marking as valid */
+ dma_wmb();
dxe->ctrl = ctrl;
+
ctl = ctl->next;
dxe = ctl->desc;
}
diff --git a/drivers/net/wireless/ath/wcn36xx/hal.h b/drivers/net/wireless/ath/wcn36xx/hal.h
index 455143c4164e..9bea2b01f9aa 100644
--- a/drivers/net/wireless/ath/wcn36xx/hal.h
+++ b/drivers/net/wireless/ath/wcn36xx/hal.h
@@ -359,6 +359,8 @@ enum wcn36xx_hal_host_msg_type {
WCN36XX_HAL_START_SCAN_OFFLOAD_RSP = 205,
WCN36XX_HAL_STOP_SCAN_OFFLOAD_REQ = 206,
WCN36XX_HAL_STOP_SCAN_OFFLOAD_RSP = 207,
+ WCN36XX_HAL_UPDATE_CHANNEL_LIST_REQ = 208,
+ WCN36XX_HAL_UPDATE_CHANNEL_LIST_RSP = 209,
WCN36XX_HAL_SCAN_OFFLOAD_IND = 210,
WCN36XX_HAL_AVOID_FREQ_RANGE_IND = 233,
@@ -1353,6 +1355,36 @@ struct wcn36xx_hal_stop_scan_offload_rsp_msg {
u32 status;
} __packed;
+#define WCN36XX_HAL_CHAN_REG1_MIN_PWR_MASK 0x000000ff
+#define WCN36XX_HAL_CHAN_REG1_MAX_PWR_MASK 0x0000ff00
+#define WCN36XX_HAL_CHAN_REG1_REG_PWR_MASK 0x00ff0000
+#define WCN36XX_HAL_CHAN_REG1_CLASS_ID_MASK 0xff000000
+#define WCN36XX_HAL_CHAN_REG2_ANT_GAIN_MASK 0x000000ff
+#define WCN36XX_HAL_CHAN_INFO_FLAG_PASSIVE BIT(7)
+#define WCN36XX_HAL_CHAN_INFO_FLAG_DFS BIT(10)
+#define WCN36XX_HAL_CHAN_INFO_FLAG_HT BIT(11)
+#define WCN36XX_HAL_CHAN_INFO_FLAG_VHT BIT(12)
+#define WCN36XX_HAL_CHAN_INFO_PHY_11A 0
+#define WCN36XX_HAL_CHAN_INFO_PHY_11BG 1
+#define WCN36XX_HAL_DEFAULT_ANT_GAIN 6
+#define WCN36XX_HAL_DEFAULT_MIN_POWER 6
+
+struct wcn36xx_hal_channel_param {
+ u32 mhz;
+ u32 band_center_freq1;
+ u32 band_center_freq2;
+ u32 channel_info;
+ u32 reg_info_1;
+ u32 reg_info_2;
+} __packed;
+
+struct wcn36xx_hal_update_channel_list_req_msg {
+ struct wcn36xx_hal_msg_header header;
+
+ u8 num_channel;
+ struct wcn36xx_hal_channel_param channels[80];
+} __packed;
+
enum wcn36xx_hal_rate_index {
HW_RATE_INDEX_1MBPS = 0x82,
HW_RATE_INDEX_2MBPS = 0x84,
@@ -3384,11 +3416,11 @@ struct tl_hal_flush_ac_rsp_msg {
struct wcn36xx_hal_enter_imps_req_msg {
struct wcn36xx_hal_msg_header header;
-};
+} __packed;
-struct wcn36xx_hal_exit_imps_req {
+struct wcn36xx_hal_exit_imps_req_msg {
struct wcn36xx_hal_msg_header header;
-};
+} __packed;
struct wcn36xx_hal_enter_bmps_req_msg {
struct wcn36xx_hal_msg_header header;
diff --git a/drivers/net/wireless/ath/wcn36xx/main.c b/drivers/net/wireless/ath/wcn36xx/main.c
index ec913ec991f3..b04533bbc3a4 100644
--- a/drivers/net/wireless/ath/wcn36xx/main.c
+++ b/drivers/net/wireless/ath/wcn36xx/main.c
@@ -85,7 +85,9 @@ static struct ieee80211_channel wcn_5ghz_channels[] = {
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(5680, 136, PHY_QUADRUPLE_CHANNEL_20MHZ_HIGH_40MHZ_LOW),
CHAN5G(5700, 140, PHY_QUADRUPLE_CHANNEL_20MHZ_LOW_40MHZ_HIGH),
+ CHAN5G(5720, 144, PHY_QUADRUPLE_CHANNEL_20MHZ_HIGH_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),
@@ -135,7 +137,9 @@ static struct ieee80211_supported_band wcn_band_2ghz = {
.cap = IEEE80211_HT_CAP_GRN_FLD |
IEEE80211_HT_CAP_SGI_20 |
IEEE80211_HT_CAP_DSSSCCK40 |
- IEEE80211_HT_CAP_LSIG_TXOP_PROT,
+ IEEE80211_HT_CAP_LSIG_TXOP_PROT |
+ IEEE80211_HT_CAP_SGI_40 |
+ IEEE80211_HT_CAP_SUP_WIDTH_20_40,
.ht_supported = true,
.ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K,
.ampdu_density = IEEE80211_HT_MPDU_DENSITY_16,
@@ -432,6 +436,13 @@ static int wcn36xx_config(struct ieee80211_hw *hw, u32 changed)
if (changed & IEEE80211_CONF_CHANGE_PS)
wcn36xx_change_ps(wcn, hw->conf.flags & IEEE80211_CONF_PS);
+ if (changed & IEEE80211_CONF_CHANGE_IDLE) {
+ if (hw->conf.flags & IEEE80211_CONF_IDLE)
+ wcn36xx_smd_enter_imps(wcn);
+ else
+ wcn36xx_smd_exit_imps(wcn);
+ }
+
mutex_unlock(&wcn->conf_mutex);
return 0;
@@ -569,12 +580,14 @@ static int wcn36xx_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
if (IEEE80211_KEY_FLAG_PAIRWISE & key_conf->flags) {
sta_priv->is_data_encrypted = true;
/* Reconfigure bss with encrypt_type */
- if (NL80211_IFTYPE_STATION == vif->type)
+ if (NL80211_IFTYPE_STATION == vif->type) {
wcn36xx_smd_config_bss(wcn,
vif,
sta,
sta->addr,
true);
+ wcn36xx_smd_config_sta(wcn, vif, sta);
+ }
wcn36xx_smd_set_stakey(wcn,
vif_priv->encrypt_type,
@@ -604,15 +617,6 @@ 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)) {
@@ -650,19 +654,19 @@ static int wcn36xx_hw_scan(struct ieee80211_hw *hw,
struct ieee80211_scan_request *hw_req)
{
struct wcn36xx *wcn = hw->priv;
- int i;
if (!get_feat_caps(wcn->fw_feat_caps, SCAN_OFFLOAD)) {
/* fallback to mac80211 software scan */
return 1;
}
- /* For unknown reason, the hardware offloaded scan only works with
- * 2.4Ghz channels, fallback to software scan in other cases.
+ /* Firmware scan offload is limited to 48 channels, fallback to
+ * software driven scanning otherwise.
*/
- for (i = 0; i < hw_req->req.n_channels; i++) {
- if (hw_req->req.channels[i]->band != NL80211_BAND_2GHZ)
- return 1;
+ if (hw_req->req.n_channels > 48) {
+ wcn36xx_warn("Offload scan aborted, n_channels=%u",
+ hw_req->req.n_channels);
+ return 1;
}
mutex_lock(&wcn->scan_lock);
@@ -676,6 +680,7 @@ static int wcn36xx_hw_scan(struct ieee80211_hw *hw,
mutex_unlock(&wcn->scan_lock);
+ wcn36xx_smd_update_channel_list(wcn, &hw_req->req);
return wcn36xx_smd_start_hw_scan(wcn, vif, &hw_req->req);
}
@@ -913,7 +918,6 @@ 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,
@@ -1123,6 +1127,13 @@ static int wcn36xx_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wow)
goto out;
ret = wcn36xx_smd_wlan_host_suspend_ind(wcn);
}
+
+ /* Disable IRQ, we don't want to handle any packet before mac80211 is
+ * resumed and ready to receive packets.
+ */
+ disable_irq(wcn->tx_irq);
+ disable_irq(wcn->rx_irq);
+
out:
mutex_unlock(&wcn->conf_mutex);
return ret;
@@ -1145,6 +1156,10 @@ static int wcn36xx_resume(struct ieee80211_hw *hw)
wcn36xx_smd_ipv6_ns_offload(wcn, vif, false);
wcn36xx_smd_arp_offload(wcn, vif, false);
}
+
+ enable_irq(wcn->tx_irq);
+ enable_irq(wcn->rx_irq);
+
mutex_unlock(&wcn->conf_mutex);
return 0;
@@ -1338,7 +1353,6 @@ static int wcn36xx_init_ieee80211(struct wcn36xx *wcn)
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);
- ieee80211_hw_set(wcn->hw, CONNECTION_MONITOR);
wcn->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
BIT(NL80211_IFTYPE_AP) |
@@ -1490,6 +1504,7 @@ static int wcn36xx_probe(struct platform_device *pdev)
mutex_init(&wcn->conf_mutex);
mutex_init(&wcn->hal_mutex);
mutex_init(&wcn->scan_lock);
+ __skb_queue_head_init(&wcn->amsdu);
wcn->hal_buf = devm_kmalloc(wcn->dev, WCN36XX_HAL_BUF_SIZE, GFP_KERNEL);
if (!wcn->hal_buf) {
@@ -1567,6 +1582,8 @@ static int wcn36xx_remove(struct platform_device *pdev)
iounmap(wcn->dxe_base);
iounmap(wcn->ccu_base);
+ __skb_queue_purge(&wcn->amsdu);
+
mutex_destroy(&wcn->hal_mutex);
ieee80211_free_hw(hw);
diff --git a/drivers/net/wireless/ath/wcn36xx/pmc.c b/drivers/net/wireless/ath/wcn36xx/pmc.c
index 2d0780fefd47..2c660458b383 100644
--- a/drivers/net/wireless/ath/wcn36xx/pmc.c
+++ b/drivers/net/wireless/ath/wcn36xx/pmc.c
@@ -18,19 +18,19 @@
#include "wcn36xx.h"
+#define WCN36XX_BMPS_FAIL_THREHOLD 3
+
int wcn36xx_pmc_enter_bmps_state(struct wcn36xx *wcn,
struct ieee80211_vif *vif)
{
int ret = 0;
struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif);
-
- if (!vif_priv->allow_bmps)
- return -ENOTSUPP;
-
+ /* TODO: Make sure the TX chain clean */
ret = wcn36xx_smd_enter_bmps(wcn, vif);
if (!ret) {
wcn36xx_dbg(WCN36XX_DBG_PMC, "Entered BMPS\n");
vif_priv->pw_state = WCN36XX_BMPS;
+ vif_priv->bmps_fail_ct = 0;
vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER;
} else {
/*
@@ -39,6 +39,11 @@ int wcn36xx_pmc_enter_bmps_state(struct wcn36xx *wcn,
* received just after auth complete
*/
wcn36xx_err("Can not enter BMPS!\n");
+
+ if (vif_priv->bmps_fail_ct++ == WCN36XX_BMPS_FAIL_THREHOLD) {
+ ieee80211_connection_loss(vif);
+ vif_priv->bmps_fail_ct = 0;
+ }
}
return ret;
}
diff --git a/drivers/net/wireless/ath/wcn36xx/smd.c b/drivers/net/wireless/ath/wcn36xx/smd.c
index 57fa857b290b..ed45e2cf039b 100644
--- a/drivers/net/wireless/ath/wcn36xx/smd.c
+++ b/drivers/net/wireless/ath/wcn36xx/smd.c
@@ -16,6 +16,7 @@
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+#include <linux/bitfield.h>
#include <linux/etherdevice.h>
#include <linux/firmware.h>
#include <linux/bitops.h>
@@ -266,7 +267,8 @@ static void wcn36xx_smd_set_sta_ht_params(struct ieee80211_sta *sta,
sta_params->max_ampdu_size = sta->ht_cap.ampdu_factor;
sta_params->max_ampdu_density = sta->ht_cap.ampdu_density;
- sta_params->max_amsdu_size = is_cap_supported(caps,
+ /* max_amsdu_size: 1 : 3839 bytes, 0 : 7935 bytes (max) */
+ sta_params->max_amsdu_size = !is_cap_supported(caps,
IEEE80211_HT_CAP_MAX_AMSDU);
sta_params->sgi_20Mhz = is_cap_supported(caps,
IEEE80211_HT_CAP_SGI_20);
@@ -927,6 +929,86 @@ out:
return ret;
}
+int wcn36xx_smd_update_channel_list(struct wcn36xx *wcn, struct cfg80211_scan_request *req)
+{
+ struct wcn36xx_hal_update_channel_list_req_msg *msg_body;
+ int ret, i;
+
+ msg_body = kzalloc(sizeof(*msg_body), GFP_KERNEL);
+ if (!msg_body)
+ return -ENOMEM;
+
+ INIT_HAL_MSG((*msg_body), WCN36XX_HAL_UPDATE_CHANNEL_LIST_REQ);
+
+ msg_body->num_channel = min_t(u8, req->n_channels, sizeof(msg_body->channels));
+ for (i = 0; i < msg_body->num_channel; i++) {
+ struct wcn36xx_hal_channel_param *param = &msg_body->channels[i];
+ u32 min_power = WCN36XX_HAL_DEFAULT_MIN_POWER;
+ u32 ant_gain = WCN36XX_HAL_DEFAULT_ANT_GAIN;
+
+ param->mhz = req->channels[i]->center_freq;
+ param->band_center_freq1 = req->channels[i]->center_freq;
+ param->band_center_freq2 = 0;
+
+ if (req->channels[i]->flags & IEEE80211_CHAN_NO_IR)
+ param->channel_info |= WCN36XX_HAL_CHAN_INFO_FLAG_PASSIVE;
+
+ if (req->channels[i]->flags & IEEE80211_CHAN_RADAR)
+ param->channel_info |= WCN36XX_HAL_CHAN_INFO_FLAG_DFS;
+
+ if (req->channels[i]->band == NL80211_BAND_5GHZ) {
+ param->channel_info |= WCN36XX_HAL_CHAN_INFO_FLAG_HT;
+ param->channel_info |= WCN36XX_HAL_CHAN_INFO_FLAG_VHT;
+ param->channel_info |= WCN36XX_HAL_CHAN_INFO_PHY_11A;
+ } else {
+ param->channel_info |= WCN36XX_HAL_CHAN_INFO_PHY_11BG;
+ }
+
+ if (min_power > req->channels[i]->max_power)
+ min_power = req->channels[i]->max_power;
+
+ if (req->channels[i]->max_antenna_gain)
+ ant_gain = req->channels[i]->max_antenna_gain;
+
+ u32p_replace_bits(&param->reg_info_1, min_power,
+ WCN36XX_HAL_CHAN_REG1_MIN_PWR_MASK);
+ u32p_replace_bits(&param->reg_info_1, req->channels[i]->max_power,
+ WCN36XX_HAL_CHAN_REG1_MAX_PWR_MASK);
+ u32p_replace_bits(&param->reg_info_1, req->channels[i]->max_reg_power,
+ WCN36XX_HAL_CHAN_REG1_REG_PWR_MASK);
+ u32p_replace_bits(&param->reg_info_1, 0,
+ WCN36XX_HAL_CHAN_REG1_CLASS_ID_MASK);
+ u32p_replace_bits(&param->reg_info_2, ant_gain,
+ WCN36XX_HAL_CHAN_REG2_ANT_GAIN_MASK);
+
+ wcn36xx_dbg(WCN36XX_DBG_HAL,
+ "%s: freq=%u, channel_info=%08x, reg_info1=%08x, reg_info2=%08x\n",
+ __func__, param->mhz, param->channel_info, param->reg_info_1,
+ param->reg_info_2);
+ }
+
+ mutex_lock(&wcn->hal_mutex);
+
+ PREPARE_HAL_BUF(wcn->hal_buf, (*msg_body));
+
+ ret = wcn36xx_smd_send_and_wait(wcn, msg_body->header.len);
+ if (ret) {
+ wcn36xx_err("Sending hal_update_channel_list failed\n");
+ goto out;
+ }
+
+ ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
+ if (ret) {
+ wcn36xx_err("hal_update_channel_list response failed err=%d\n", ret);
+ goto out;
+ }
+
+out:
+ kfree(msg_body);
+ mutex_unlock(&wcn->hal_mutex);
+ return ret;
+}
+
static int wcn36xx_smd_switch_channel_rsp(void *buf, size_t len)
{
struct wcn36xx_hal_switch_channel_rsp_msg *rsp;
@@ -2184,6 +2266,59 @@ out:
return ret;
}
+int wcn36xx_smd_enter_imps(struct wcn36xx *wcn)
+{
+ struct wcn36xx_hal_enter_imps_req_msg msg_body;
+ int ret;
+
+ mutex_lock(&wcn->hal_mutex);
+ INIT_HAL_MSG(msg_body, WCN36XX_HAL_ENTER_IMPS_REQ);
+
+ PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
+
+ ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
+ if (ret) {
+ wcn36xx_err("Sending hal_enter_imps failed\n");
+ goto out;
+ }
+ ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
+ if (ret) {
+ wcn36xx_err("hal_enter_imps response failed err=%d\n", ret);
+ goto out;
+ }
+
+ wcn36xx_dbg(WCN36XX_DBG_HAL, "Entered idle mode\n");
+out:
+ mutex_unlock(&wcn->hal_mutex);
+ return ret;
+}
+
+int wcn36xx_smd_exit_imps(struct wcn36xx *wcn)
+{
+ struct wcn36xx_hal_exit_imps_req_msg msg_body;
+ int ret;
+
+ mutex_lock(&wcn->hal_mutex);
+ INIT_HAL_MSG(msg_body, WCN36XX_HAL_EXIT_IMPS_REQ);
+
+ PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
+
+ ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
+ if (ret) {
+ wcn36xx_err("Sending hal_exit_imps failed\n");
+ goto out;
+ }
+ ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
+ if (ret) {
+ wcn36xx_err("hal_exit_imps response failed err=%d\n", ret);
+ goto out;
+ }
+ wcn36xx_dbg(WCN36XX_DBG_HAL, "Exited idle mode\n");
+out:
+ mutex_unlock(&wcn->hal_mutex);
+ return ret;
+}
+
int wcn36xx_smd_set_power_params(struct wcn36xx *wcn, bool ignore_dtim)
{
struct wcn36xx_hal_set_power_params_req_msg msg_body;
@@ -2341,8 +2476,11 @@ int wcn36xx_smd_feature_caps_exchange(struct wcn36xx *wcn)
INIT_HAL_MSG(msg_body, WCN36XX_HAL_FEATURE_CAPS_EXCHANGE_REQ);
set_feat_caps(msg_body.feat_caps, STA_POWERSAVE);
- if (wcn->rf_id == RF_IRIS_WCN3680)
+ if (wcn->rf_id == RF_IRIS_WCN3680) {
set_feat_caps(msg_body.feat_caps, DOT11AC);
+ set_feat_caps(msg_body.feat_caps, WLAN_CH144);
+ set_feat_caps(msg_body.feat_caps, ANTENNA_DIVERSITY_SELECTION);
+ }
PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
@@ -2623,30 +2761,52 @@ static int wcn36xx_smd_delete_sta_context_ind(struct wcn36xx *wcn,
size_t len)
{
struct wcn36xx_hal_delete_sta_context_ind_msg *rsp = buf;
- struct wcn36xx_vif *tmp;
+ struct wcn36xx_vif *vif_priv;
+ struct ieee80211_vif *vif;
+ struct ieee80211_bss_conf *bss_conf;
struct ieee80211_sta *sta;
+ bool found = false;
if (len != sizeof(*rsp)) {
wcn36xx_warn("Corrupted delete sta indication\n");
return -EIO;
}
- wcn36xx_dbg(WCN36XX_DBG_HAL, "delete station indication %pM index %d\n",
- rsp->addr2, rsp->sta_id);
+ wcn36xx_dbg(WCN36XX_DBG_HAL,
+ "delete station indication %pM index %d reason %d\n",
+ rsp->addr2, rsp->sta_id, rsp->reason_code);
- list_for_each_entry(tmp, &wcn->vif_list, list) {
+ list_for_each_entry(vif_priv, &wcn->vif_list, list) {
rcu_read_lock();
- sta = ieee80211_find_sta(wcn36xx_priv_to_vif(tmp), rsp->addr2);
- if (sta)
- ieee80211_report_low_ack(sta, 0);
+ vif = wcn36xx_priv_to_vif(vif_priv);
+
+ if (vif->type == NL80211_IFTYPE_STATION) {
+ /* We could call ieee80211_find_sta too, but checking
+ * bss_conf is clearer.
+ */
+ bss_conf = &vif->bss_conf;
+ if (vif_priv->sta_assoc &&
+ !memcmp(bss_conf->bssid, rsp->addr2, ETH_ALEN)) {
+ found = true;
+ wcn36xx_dbg(WCN36XX_DBG_HAL,
+ "connection loss bss_index %d\n",
+ vif_priv->bss_index);
+ ieee80211_connection_loss(vif);
+ }
+ } else {
+ sta = ieee80211_find_sta(vif, rsp->addr2);
+ if (sta) {
+ found = true;
+ ieee80211_report_low_ack(sta, 0);
+ }
+ }
+
rcu_read_unlock();
- if (sta)
+ if (found)
return 0;
}
- wcn36xx_warn("STA with addr %pM and index %d not found\n",
- rsp->addr2,
- rsp->sta_id);
+ wcn36xx_warn("BSS or STA with addr %pM not found\n", rsp->addr2);
return -ENOENT;
}
@@ -3060,6 +3220,9 @@ int wcn36xx_smd_rsp_process(struct rpmsg_device *rpdev,
case WCN36XX_HAL_GTK_OFFLOAD_RSP:
case WCN36XX_HAL_GTK_OFFLOAD_GETINFO_RSP:
case WCN36XX_HAL_HOST_RESUME_RSP:
+ case WCN36XX_HAL_ENTER_IMPS_RSP:
+ case WCN36XX_HAL_EXIT_IMPS_RSP:
+ case WCN36XX_HAL_UPDATE_CHANNEL_LIST_RSP:
memcpy(wcn->hal_buf, buf, len);
wcn->hal_rsp_len = len;
complete(&wcn->hal_rsp_compl);
diff --git a/drivers/net/wireless/ath/wcn36xx/smd.h b/drivers/net/wireless/ath/wcn36xx/smd.h
index d8bded03945d..88e045dad8f3 100644
--- a/drivers/net/wireless/ath/wcn36xx/smd.h
+++ b/drivers/net/wireless/ath/wcn36xx/smd.h
@@ -70,6 +70,7 @@ int wcn36xx_smd_update_scan_params(struct wcn36xx *wcn, u8 *channels, size_t cha
int wcn36xx_smd_start_hw_scan(struct wcn36xx *wcn, struct ieee80211_vif *vif,
struct cfg80211_scan_request *req);
int wcn36xx_smd_stop_hw_scan(struct wcn36xx *wcn);
+int wcn36xx_smd_update_channel_list(struct wcn36xx *wcn, struct cfg80211_scan_request *req);
int wcn36xx_smd_add_sta_self(struct wcn36xx *wcn, struct ieee80211_vif *vif);
int wcn36xx_smd_delete_sta_self(struct wcn36xx *wcn, u8 *addr);
int wcn36xx_smd_delete_sta(struct wcn36xx *wcn, u8 sta_index);
@@ -163,4 +164,7 @@ int wcn36xx_smd_wlan_host_suspend_ind(struct wcn36xx *wcn);
int wcn36xx_smd_host_resume(struct wcn36xx *wcn);
+int wcn36xx_smd_enter_imps(struct wcn36xx *wcn);
+int wcn36xx_smd_exit_imps(struct wcn36xx *wcn);
+
#endif /* _SMD_H_ */
diff --git a/drivers/net/wireless/ath/wcn36xx/txrx.c b/drivers/net/wireless/ath/wcn36xx/txrx.c
index cab196bb38cd..75951ccbc840 100644
--- a/drivers/net/wireless/ath/wcn36xx/txrx.c
+++ b/drivers/net/wireless/ath/wcn36xx/txrx.c
@@ -31,6 +31,13 @@ struct wcn36xx_rate {
enum rate_info_bw bw;
};
+/* Buffer descriptor rx_ch field is limited to 5-bit (4+1), a mapping is used
+ * for 11A Channels.
+ */
+static const u8 ab_rx_ch_map[] = { 36, 40, 44, 48, 52, 56, 60, 64, 100, 104,
+ 108, 112, 116, 120, 124, 128, 132, 136, 140,
+ 149, 153, 157, 161, 165, 144 };
+
static const struct wcn36xx_rate wcn36xx_rate_table[] = {
/* 11b rates */
{ 10, 0, RX_ENC_LEGACY, 0, RATE_INFO_BW_20 },
@@ -224,6 +231,41 @@ static const struct wcn36xx_rate wcn36xx_rate_table[] = {
{ 4333, 9, RX_ENC_VHT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_80 },
};
+static struct sk_buff *wcn36xx_unchain_msdu(struct sk_buff_head *amsdu)
+{
+ struct sk_buff *skb, *first;
+ int total_len = 0;
+ int space;
+
+ first = __skb_dequeue(amsdu);
+
+ skb_queue_walk(amsdu, skb)
+ total_len += skb->len;
+
+ space = total_len - skb_tailroom(first);
+ if (space > 0 && pskb_expand_head(first, 0, space, GFP_ATOMIC) < 0) {
+ __skb_queue_head(amsdu, first);
+ return NULL;
+ }
+
+ /* Walk list again, copying contents into msdu_head */
+ while ((skb = __skb_dequeue(amsdu))) {
+ skb_copy_from_linear_data(skb, skb_put(first, skb->len),
+ skb->len);
+ dev_kfree_skb_irq(skb);
+ }
+
+ return first;
+}
+
+static void __skb_queue_purge_irq(struct sk_buff_head *list)
+{
+ struct sk_buff *skb;
+
+ while ((skb = __skb_dequeue(list)) != NULL)
+ dev_kfree_skb_irq(skb);
+}
+
int wcn36xx_rx_skb(struct wcn36xx *wcn, struct sk_buff *skb)
{
struct ieee80211_rx_status status;
@@ -245,6 +287,26 @@ int wcn36xx_rx_skb(struct wcn36xx *wcn, struct sk_buff *skb)
"BD <<< ", (char *)bd,
sizeof(struct wcn36xx_rx_bd));
+ if (bd->pdu.mpdu_data_off <= bd->pdu.mpdu_header_off ||
+ bd->pdu.mpdu_len < bd->pdu.mpdu_header_len)
+ goto drop;
+
+ if (bd->asf && !bd->esf) { /* chained A-MSDU chunks */
+ /* Sanity check */
+ if (bd->pdu.mpdu_data_off + bd->pdu.mpdu_len > WCN36XX_PKT_SIZE)
+ goto drop;
+
+ skb_put(skb, bd->pdu.mpdu_data_off + bd->pdu.mpdu_len);
+ skb_pull(skb, bd->pdu.mpdu_data_off);
+
+ /* Only set status for first chained BD (with mac header) */
+ goto done;
+ }
+
+ if (bd->pdu.mpdu_header_off < sizeof(*bd) ||
+ bd->pdu.mpdu_header_off + bd->pdu.mpdu_len > WCN36XX_PKT_SIZE)
+ goto drop;
+
skb_put(skb, bd->pdu.mpdu_header_off + bd->pdu.mpdu_len);
skb_pull(skb, bd->pdu.mpdu_header_off);
@@ -291,6 +353,22 @@ int wcn36xx_rx_skb(struct wcn36xx *wcn, struct sk_buff *skb)
ieee80211_is_probe_resp(hdr->frame_control))
status.boottime_ns = ktime_get_boottime_ns();
+ if (bd->scan_learn) {
+ /* If packet originates from hardware scanning, extract the
+ * band/channel from bd descriptor.
+ */
+ u8 hwch = (bd->reserved0 << 4) + bd->rx_ch;
+
+ if (bd->rf_band != 1 && hwch <= sizeof(ab_rx_ch_map) && hwch >= 1) {
+ status.band = NL80211_BAND_5GHZ;
+ status.freq = ieee80211_channel_to_frequency(ab_rx_ch_map[hwch - 1],
+ status.band);
+ } else {
+ status.band = NL80211_BAND_2GHZ;
+ status.freq = ieee80211_channel_to_frequency(hwch, status.band);
+ }
+ }
+
memcpy(IEEE80211_SKB_RXCB(skb), &status, sizeof(status));
if (ieee80211_is_beacon(hdr->frame_control)) {
@@ -305,9 +383,37 @@ int wcn36xx_rx_skb(struct wcn36xx *wcn, struct sk_buff *skb)
(char *)skb->data, skb->len);
}
+done:
+ /* Chained AMSDU ? slow path */
+ if (unlikely(bd->asf && !(bd->lsf && bd->esf))) {
+ if (bd->esf && !skb_queue_empty(&wcn->amsdu)) {
+ wcn36xx_err("Discarding non complete chain");
+ __skb_queue_purge_irq(&wcn->amsdu);
+ }
+
+ __skb_queue_tail(&wcn->amsdu, skb);
+
+ if (!bd->lsf)
+ return 0; /* Not the last AMSDU, wait for more */
+
+ skb = wcn36xx_unchain_msdu(&wcn->amsdu);
+ if (!skb)
+ goto drop;
+ }
+
ieee80211_rx_irqsafe(wcn->hw, skb);
return 0;
+
+drop: /* drop everything */
+ wcn36xx_err("Drop frame! skb:%p len:%u hoff:%u doff:%u asf=%u esf=%u lsf=%u\n",
+ skb, bd->pdu.mpdu_len, bd->pdu.mpdu_header_off,
+ bd->pdu.mpdu_data_off, bd->asf, bd->esf, bd->lsf);
+
+ dev_kfree_skb_irq(skb);
+ __skb_queue_purge_irq(&wcn->amsdu);
+
+ return -EINVAL;
}
static void wcn36xx_set_tx_pdu(struct wcn36xx_tx_bd *bd,
@@ -321,8 +427,6 @@ static void wcn36xx_set_tx_pdu(struct wcn36xx_tx_bd *bd,
bd->pdu.mpdu_header_off;
bd->pdu.mpdu_len = len;
bd->pdu.tid = tid;
- /* Use seq number generated by mac80211 */
- bd->pdu.bd_ssn = WCN36XX_TXBD_SSN_FILL_HOST;
}
static inline struct wcn36xx_vif *get_vif_by_addr(struct wcn36xx *wcn,
@@ -419,6 +523,9 @@ static void wcn36xx_set_tx_data(struct wcn36xx_tx_bd *bd,
tid = ieee80211_get_tid(hdr);
/* TID->QID is one-to-one mapping */
bd->queue_id = tid;
+ bd->pdu.bd_ssn = WCN36XX_TXBD_SSN_FILL_DPU_QOS;
+ } else {
+ bd->pdu.bd_ssn = WCN36XX_TXBD_SSN_FILL_DPU_NON_QOS;
}
if (info->flags & IEEE80211_TX_INTFL_DONT_ENCRYPT ||
@@ -429,6 +536,9 @@ static void wcn36xx_set_tx_data(struct wcn36xx_tx_bd *bd,
if (ieee80211_is_any_nullfunc(hdr->frame_control)) {
/* Don't use a regular queue for null packet (no ampdu) */
bd->queue_id = WCN36XX_TX_U_WQ_ID;
+ bd->bd_rate = WCN36XX_BD_RATE_CTRL;
+ if (ieee80211_is_qos_nullfunc(hdr->frame_control))
+ bd->pdu.bd_ssn = WCN36XX_TXBD_SSN_FILL_HOST;
}
if (bcast) {
@@ -488,6 +598,8 @@ static void wcn36xx_set_tx_mgmt(struct wcn36xx_tx_bd *bd,
bd->queue_id = WCN36XX_TX_U_WQ_ID;
*vif_priv = __vif_priv;
+ bd->pdu.bd_ssn = WCN36XX_TXBD_SSN_FILL_DPU_NON_QOS;
+
wcn36xx_set_tx_pdu(bd,
ieee80211_is_data_qos(hdr->frame_control) ?
sizeof(struct ieee80211_qos_hdr) :
@@ -502,10 +614,11 @@ int wcn36xx_start_tx(struct wcn36xx *wcn,
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
struct wcn36xx_vif *vif_priv = NULL;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
- unsigned long flags;
bool is_low = ieee80211_is_data(hdr->frame_control);
bool bcast = is_broadcast_ether_addr(hdr->addr1) ||
is_multicast_ether_addr(hdr->addr1);
+ bool ack_ind = (info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS) &&
+ !(info->flags & IEEE80211_TX_CTL_NO_ACK);
struct wcn36xx_tx_bd bd;
int ret;
@@ -521,30 +634,16 @@ int wcn36xx_start_tx(struct wcn36xx *wcn,
bd.dpu_rf = WCN36XX_BMU_WQ_TX;
- if (info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS) {
+ if (unlikely(ack_ind)) {
wcn36xx_dbg(WCN36XX_DBG_DXE, "TX_ACK status requested\n");
- spin_lock_irqsave(&wcn->dxe_lock, flags);
- if (wcn->tx_ack_skb) {
- spin_unlock_irqrestore(&wcn->dxe_lock, flags);
- wcn36xx_warn("tx_ack_skb already set\n");
- return -EINVAL;
- }
-
- wcn->tx_ack_skb = skb;
- spin_unlock_irqrestore(&wcn->dxe_lock, flags);
-
/* Only one at a time is supported by fw. Stop the TX queues
* until the ack status gets back.
*/
ieee80211_stop_queues(wcn->hw);
- /* TX watchdog if no TX irq or ack indication received */
- mod_timer(&wcn->tx_ack_timer, jiffies + HZ / 10);
-
/* Request ack indication from the firmware */
- if (!(info->flags & IEEE80211_TX_CTL_NO_ACK))
- bd.tx_comp = 1;
+ bd.tx_comp = 1;
}
/* Data frames served first*/
@@ -558,14 +657,8 @@ int wcn36xx_start_tx(struct wcn36xx *wcn,
bd.tx_bd_sign = 0xbdbdbdbd;
ret = wcn36xx_dxe_tx_frame(wcn, vif_priv, &bd, skb, is_low);
- if (ret && (info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS)) {
- /* If the skb has not been transmitted,
- * don't keep a reference to it.
- */
- spin_lock_irqsave(&wcn->dxe_lock, flags);
- wcn->tx_ack_skb = NULL;
- spin_unlock_irqrestore(&wcn->dxe_lock, flags);
-
+ if (unlikely(ret && ack_ind)) {
+ /* If the skb has not been transmitted, resume TX queue */
ieee80211_wake_queues(wcn->hw);
}
diff --git a/drivers/net/wireless/ath/wcn36xx/txrx.h b/drivers/net/wireless/ath/wcn36xx/txrx.h
index 032216e82b2b..b54311ffde9c 100644
--- a/drivers/net/wireless/ath/wcn36xx/txrx.h
+++ b/drivers/net/wireless/ath/wcn36xx/txrx.h
@@ -110,7 +110,8 @@ struct wcn36xx_rx_bd {
/* 0x44 */
u32 exp_seq_num:12;
u32 cur_seq_num:12;
- u32 fr_type_subtype:8;
+ u32 rf_band:2;
+ u32 fr_type_subtype:6;
/* 0x48 */
u32 msdu_size:16;
diff --git a/drivers/net/wireless/ath/wcn36xx/wcn36xx.h b/drivers/net/wireless/ath/wcn36xx/wcn36xx.h
index add6e527e833..1c8d918137da 100644
--- a/drivers/net/wireless/ath/wcn36xx/wcn36xx.h
+++ b/drivers/net/wireless/ath/wcn36xx/wcn36xx.h
@@ -128,7 +128,6 @@ struct wcn36xx_vif {
enum wcn36xx_hal_bss_type bss_type;
/* Power management */
- bool allow_bmps;
enum wcn36xx_power_state pw_state;
u8 bss_index;
@@ -151,6 +150,8 @@ struct wcn36xx_vif {
} rekey_data;
struct list_head sta_list;
+
+ int bmps_fail_ct;
};
/**
@@ -269,6 +270,9 @@ struct wcn36xx {
struct sk_buff *tx_ack_skb;
struct timer_list tx_ack_timer;
+ /* For A-MSDU re-aggregation */
+ struct sk_buff_head amsdu;
+
/* RF module */
unsigned rf_id;
@@ -276,7 +280,6 @@ struct wcn36xx {
/* Debug file system entry */
struct wcn36xx_dfs_entry dfs;
#endif /* CONFIG_WCN36XX_DEBUGFS */
-
};
static inline bool wcn36xx_is_fw_version(struct wcn36xx *wcn,
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-01 04:33:48 +0000