From ec038c6127fa772d2c5604e329f22371830d5fa6 Mon Sep 17 00:00:00 2001
From: Wen Gong <quic_wgong@quicinc.com>
Date: Mon, 20 Dec 2021 18:11:09 +0200
Subject: [PATCH] ath11k: add support for hardware rfkill for QCA6390
Git-commit: ec038c6127fa772d2c5604e329f22371830d5fa6
Patch-mainline: v5.17-rc1
References: bsc#1206451
When hardware rfkill is enabled in the firmware it will report the
capability via using WMI_SYS_CAP_INFO_RFKILL bit in the WMI_SERVICE_READY
event to the host. ath11k will check the capability, and if it is enabled then
ath11k will set the GPIO information to firmware using WMI_PDEV_SET_PARAM. When
the firmware detects hardware rfkill is enabled by the user, it will report it
via WMI_RFKILL_STATE_CHANGE_EVENTID. Once ath11k receives the event it will
send wmi command WMI_PDEV_SET_PARAM to the firmware and also notifies cfg80211.
This only enable rfkill feature for QCA6390, rfkill_pin is all initialized to 0
for other chips in ath11k_hw_params.
Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1
Signed-off-by: Wen Gong <quic_wgong@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20211217102334.14907-1-quic_wgong@quicinc.com
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/net/wireless/ath/ath11k/core.c | 70 ++++++++++++++++++++++++++
drivers/net/wireless/ath/ath11k/core.h | 4 ++
drivers/net/wireless/ath/ath11k/hw.h | 3 ++
drivers/net/wireless/ath/ath11k/mac.c | 58 +++++++++++++++++++++
drivers/net/wireless/ath/ath11k/mac.h | 2 +
drivers/net/wireless/ath/ath11k/wmi.c | 41 +++++++++++++++
drivers/net/wireless/ath/ath11k/wmi.h | 25 +++++++++
7 files changed, 203 insertions(+)
diff --git a/drivers/net/wireless/ath/ath11k/core.c b/drivers/net/wireless/ath/ath11k/core.c
index 9e745424ea67..bfda297a53f2 100644
--- a/drivers/net/wireless/ath/ath11k/core.c
+++ b/drivers/net/wireless/ath/ath11k/core.c
@@ -52,6 +52,9 @@ static const struct ath11k_hw_params ath11k_hw_params[] = {
.target_ce_count = 11,
.svc_to_ce_map = ath11k_target_service_to_ce_map_wlan_ipq8074,
.svc_to_ce_map_len = 21,
+ .rfkill_pin = 0,
+ .rfkill_cfg = 0,
+ .rfkill_on_level = 0,
.single_pdev_only = false,
.rxdma1_enable = true,
.num_rxmda_per_pdev = 1,
@@ -114,6 +117,9 @@ static const struct ath11k_hw_params ath11k_hw_params[] = {
.target_ce_count = 11,
.svc_to_ce_map = ath11k_target_service_to_ce_map_wlan_ipq6018,
.svc_to_ce_map_len = 19,
+ .rfkill_pin = 0,
+ .rfkill_cfg = 0,
+ .rfkill_on_level = 0,
.single_pdev_only = false,
.rxdma1_enable = true,
.num_rxmda_per_pdev = 1,
@@ -173,6 +179,9 @@ static const struct ath11k_hw_params ath11k_hw_params[] = {
.target_ce_count = 9,
.svc_to_ce_map = ath11k_target_service_to_ce_map_wlan_qca6390,
.svc_to_ce_map_len = 14,
+ .rfkill_pin = 48,
+ .rfkill_cfg = 0,
+ .rfkill_on_level = 1,
.single_pdev_only = true,
.rxdma1_enable = false,
.num_rxmda_per_pdev = 2,
@@ -231,6 +240,9 @@ static const struct ath11k_hw_params ath11k_hw_params[] = {
.target_ce_count = 9,
.svc_to_ce_map = ath11k_target_service_to_ce_map_wlan_qcn9074,
.svc_to_ce_map_len = 18,
+ .rfkill_pin = 0,
+ .rfkill_cfg = 0,
+ .rfkill_on_level = 0,
.rxdma1_enable = true,
.num_rxmda_per_pdev = 1,
.rx_mac_buf_ring = false,
@@ -289,6 +301,9 @@ static const struct ath11k_hw_params ath11k_hw_params[] = {
.target_ce_count = 9,
.svc_to_ce_map = ath11k_target_service_to_ce_map_wlan_qca6390,
.svc_to_ce_map_len = 14,
+ .rfkill_pin = 0,
+ .rfkill_cfg = 0,
+ .rfkill_on_level = 0,
.single_pdev_only = true,
.rxdma1_enable = false,
.num_rxmda_per_pdev = 2,
@@ -347,6 +362,9 @@ static const struct ath11k_hw_params ath11k_hw_params[] = {
.target_ce_count = 9,
.svc_to_ce_map = ath11k_target_service_to_ce_map_wlan_qca6390,
.svc_to_ce_map_len = 14,
+ .rfkill_pin = 0,
+ .rfkill_cfg = 0,
+ .rfkill_on_level = 0,
.single_pdev_only = true,
.rxdma1_enable = false,
.num_rxmda_per_pdev = 2,
@@ -1015,6 +1033,27 @@ static int ath11k_core_start(struct ath11k_base *ab,
return ret;
}
+static int ath11k_core_rfkill_config(struct ath11k_base *ab)
+{
+ struct ath11k *ar;
+ int ret = 0, i;
+
+ if (!(ab->target_caps.sys_cap_info & WMI_SYS_CAP_INFO_RFKILL))
+ return 0;
+
+ for (i = 0; i < ab->num_radios; i++) {
+ ar = ab->pdevs[i].ar;
+
+ ret = ath11k_mac_rfkill_config(ar);
+ if (ret && ret != -EOPNOTSUPP) {
+ ath11k_warn(ab, "failed to configure rfkill: %d", ret);
+ return ret;
+ }
+ }
+
+ return ret;
+}
+
int ath11k_core_qmi_firmware_ready(struct ath11k_base *ab)
{
int ret;
@@ -1061,6 +1100,13 @@ int ath11k_core_qmi_firmware_ready(struct ath11k_base *ab)
goto err_core_stop;
}
ath11k_hif_irq_enable(ab);
+
+ ret = ath11k_core_rfkill_config(ab);
+ if (ret && ret != -EOPNOTSUPP) {
+ ath11k_err(ab, "failed to config rfkill: %d\n", ret);
+ goto err_core_stop;
+ }
+
mutex_unlock(&ab->core_lock);
return 0;
@@ -1126,6 +1172,7 @@ void ath11k_core_halt(struct ath11k *ar)
cancel_delayed_work_sync(&ar->scan.timeout);
cancel_work_sync(&ar->regd_update_work);
cancel_work_sync(&ab->update_11d_work);
+ cancel_work_sync(&ab->rfkill_work);
rcu_assign_pointer(ab->pdevs_active[ar->pdev_idx], NULL);
synchronize_rcu();
@@ -1133,6 +1180,28 @@ void ath11k_core_halt(struct ath11k *ar)
idr_init(&ar->txmgmt_idr);
}
+static void ath11k_rfkill_work(struct work_struct *work)
+{
+ struct ath11k_base *ab = container_of(work, struct ath11k_base, rfkill_work);
+ struct ath11k *ar;
+ bool rfkill_radio_on;
+ int i;
+
+ spin_lock_bh(&ab->base_lock);
+ rfkill_radio_on = ab->rfkill_radio_on;
+ spin_unlock_bh(&ab->base_lock);
+
+ for (i = 0; i < ab->num_radios; i++) {
+ ar = ab->pdevs[i].ar;
+ if (!ar)
+ continue;
+
+ /* notify cfg80211 radio state change */
+ ath11k_mac_rfkill_enable_radio(ar, rfkill_radio_on);
+ wiphy_rfkill_set_hw_state(ar->hw->wiphy, !rfkill_radio_on);
+ }
+}
+
static void ath11k_update_11d(struct work_struct *work)
{
struct ath11k_base *ab = container_of(work, struct ath11k_base, update_11d_work);
@@ -1339,6 +1408,7 @@ struct ath11k_base *ath11k_core_alloc(struct device *dev, size_t priv_size,
init_waitqueue_head(&ab->qmi.cold_boot_waitq);
INIT_WORK(&ab->restart_work, ath11k_core_restart);
INIT_WORK(&ab->update_11d_work, ath11k_update_11d);
+ INIT_WORK(&ab->rfkill_work, ath11k_rfkill_work);
timer_setup(&ab->rx_replenish_retry, ath11k_ce_rx_replenish_retry, 0);
init_completion(&ab->htc_suspend);
init_completion(&ab->wow.wakeup_completed);
diff --git a/drivers/net/wireless/ath/ath11k/core.h b/drivers/net/wireless/ath/ath11k/core.h
index 5cb906cf1b90..45aae41d917d 100644
--- a/drivers/net/wireless/ath/ath11k/core.h
+++ b/drivers/net/wireless/ath/ath11k/core.h
@@ -786,6 +786,10 @@ struct ath11k_base {
struct ath11k_dbring_cap *db_caps;
u32 num_db_cap;
+ struct work_struct rfkill_work;
+
+ /* true means radio is on */
+ bool rfkill_radio_on;
/* To synchronize 11d scan vdev id */
struct mutex vdev_id_11d_lock;
diff --git a/drivers/net/wireless/ath/ath11k/hw.h b/drivers/net/wireless/ath/ath11k/hw.h
index a8a5b76ea4a3..e4685c714579 100644
--- a/drivers/net/wireless/ath/ath11k/hw.h
+++ b/drivers/net/wireless/ath/ath11k/hw.h
@@ -151,6 +151,9 @@ struct ath11k_hw_params {
u32 svc_to_ce_map_len;
bool single_pdev_only;
+ u32 rfkill_pin;
+ u32 rfkill_cfg;
+ u32 rfkill_on_level;
bool rxdma1_enable;
int num_rxmda_per_pdev;
diff --git a/drivers/net/wireless/ath/ath11k/mac.c b/drivers/net/wireless/ath/ath11k/mac.c
index aebb4b7dd8c0..07f499d5ec92 100644
--- a/drivers/net/wireless/ath/ath11k/mac.c
+++ b/drivers/net/wireless/ath/ath11k/mac.c
@@ -5571,6 +5571,63 @@ static int ath11k_mac_mgmt_tx(struct ath11k *ar, struct sk_buff *skb,
return 0;
}
+int ath11k_mac_rfkill_config(struct ath11k *ar)
+{
+ struct ath11k_base *ab = ar->ab;
+ u32 param;
+ int ret;
+
+ if (ab->hw_params.rfkill_pin == 0)
+ return -EOPNOTSUPP;
+
+ ath11k_dbg(ab, ATH11K_DBG_MAC,
+ "mac rfkill_pin %d rfkill_cfg %d rfkill_on_level %d",
+ ab->hw_params.rfkill_pin, ab->hw_params.rfkill_cfg,
+ ab->hw_params.rfkill_on_level);
+
+ param = FIELD_PREP(WMI_RFKILL_CFG_RADIO_LEVEL,
+ ab->hw_params.rfkill_on_level) |
+ FIELD_PREP(WMI_RFKILL_CFG_GPIO_PIN_NUM,
+ ab->hw_params.rfkill_pin) |
+ FIELD_PREP(WMI_RFKILL_CFG_PIN_AS_GPIO,
+ ab->hw_params.rfkill_cfg);
+
+ ret = ath11k_wmi_pdev_set_param(ar, WMI_PDEV_PARAM_HW_RFKILL_CONFIG,
+ param, ar->pdev->pdev_id);
+ if (ret) {
+ ath11k_warn(ab,
+ "failed to set rfkill config 0x%x: %d\n",
+ param, ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+int ath11k_mac_rfkill_enable_radio(struct ath11k *ar, bool enable)
+{
+ enum wmi_rfkill_enable_radio param;
+ int ret;
+
+ if (enable)
+ param = WMI_RFKILL_ENABLE_RADIO_ON;
+ else
+ param = WMI_RFKILL_ENABLE_RADIO_OFF;
+
+ ath11k_dbg(ar->ab, ATH11K_DBG_MAC, "mac %d rfkill enable %d",
+ ar->pdev_idx, param);
+
+ ret = ath11k_wmi_pdev_set_param(ar, WMI_PDEV_PARAM_RFKILL_ENABLE,
+ param, ar->pdev->pdev_id);
+ if (ret) {
+ ath11k_warn(ar->ab, "failed to set rfkill enable param %d: %d\n",
+ param, ret);
+ return ret;
+ }
+
+ return 0;
+}
+
static void ath11k_mac_op_tx(struct ieee80211_hw *hw,
struct ieee80211_tx_control *control,
struct sk_buff *skb)
@@ -5803,6 +5860,7 @@ static void ath11k_mac_op_stop(struct ieee80211_hw *hw)
cancel_delayed_work_sync(&ar->scan.timeout);
cancel_work_sync(&ar->regd_update_work);
cancel_work_sync(&ar->ab->update_11d_work);
+ cancel_work_sync(&ar->ab->rfkill_work);
spin_lock_bh(&ar->data_lock);
list_for_each_entry_safe(ppdu_stats, tmp, &ar->ppdu_stats_info, list) {
diff --git a/drivers/net/wireless/ath/ath11k/mac.h b/drivers/net/wireless/ath/ath11k/mac.h
index cab3356ec0dc..0e6c870b09c8 100644
--- a/drivers/net/wireless/ath/ath11k/mac.h
+++ b/drivers/net/wireless/ath/ath11k/mac.h
@@ -147,6 +147,8 @@ u8 ath11k_mac_hw_rate_to_idx(const struct ieee80211_supported_band *sband,
void __ath11k_mac_scan_finish(struct ath11k *ar);
void ath11k_mac_scan_finish(struct ath11k *ar);
+int ath11k_mac_rfkill_enable_radio(struct ath11k *ar, bool enable);
+int ath11k_mac_rfkill_config(struct ath11k *ar);
struct ath11k_vif *ath11k_mac_get_arvif(struct ath11k *ar, u32 vdev_id);
struct ath11k_vif *ath11k_mac_get_arvif_by_vdev_id(struct ath11k_base *ab,
diff --git a/drivers/net/wireless/ath/ath11k/wmi.c b/drivers/net/wireless/ath/ath11k/wmi.c
index 79b0463fe28e..747e1522ec8d 100644
--- a/drivers/net/wireless/ath/ath11k/wmi.c
+++ b/drivers/net/wireless/ath/ath11k/wmi.c
@@ -128,6 +128,8 @@ static const struct wmi_tlv_policy wmi_tlv_policies[] = {
= { .min_len = sizeof(struct wmi_peer_assoc_conf_event) },
[WMI_TAG_STATS_EVENT]
= { .min_len = sizeof(struct wmi_stats_event) },
+ [WMI_TAG_RFKILL_EVENT] = {
+ .min_len = sizeof(struct wmi_rfkill_state_change_ev) },
[WMI_TAG_PDEV_CTL_FAILSAFE_CHECK_EVENT]
= { .min_len = sizeof(struct wmi_pdev_ctl_failsafe_chk_event) },
[WMI_TAG_HOST_SWFDA_EVENT] = {
@@ -524,6 +526,8 @@ static int ath11k_pull_service_ready_tlv(struct ath11k_base *ab,
cap->default_dbs_hw_mode_index = ev->default_dbs_hw_mode_index;
cap->num_msdu_desc = ev->num_msdu_desc;
+ ath11k_dbg(ab, ATH11K_DBG_WMI, "wmi sys cap info 0x%x\n", cap->sys_cap_info);
+
return 0;
}
@@ -7334,6 +7338,40 @@ ath11k_wmi_pdev_dfs_radar_detected_event(struct ath11k_base *ab, struct sk_buff
kfree(tb);
}
+static void ath11k_rfkill_state_change_event(struct ath11k_base *ab,
+ struct sk_buff *skb)
+{
+ const struct wmi_rfkill_state_change_ev *ev;
+ const void **tb;
+ int ret;
+
+ tb = ath11k_wmi_tlv_parse_alloc(ab, skb->data, skb->len, GFP_ATOMIC);
+ if (IS_ERR(tb)) {
+ ret = PTR_ERR(tb);
+ ath11k_warn(ab, "failed to parse tlv: %d\n", ret);
+ return;
+ }
+
+ ev = tb[WMI_TAG_RFKILL_EVENT];
+ if (!ev) {
+ kfree(tb);
+ return;
+ }
+
+ ath11k_dbg(ab, ATH11K_DBG_MAC,
+ "wmi tlv rfkill state change gpio %d type %d radio_state %d\n",
+ ev->gpio_pin_num,
+ ev->int_type,
+ ev->radio_state);
+
+ spin_lock_bh(&ab->base_lock);
+ ab->rfkill_radio_on = (ev->radio_state == WMI_RFKILL_RADIO_STATE_ON);
+ spin_unlock_bh(&ab->base_lock);
+
+ queue_work(ab->workqueue, &ab->rfkill_work);
+ kfree(tb);
+}
+
static void
ath11k_wmi_pdev_temperature_event(struct ath11k_base *ab,
struct sk_buff *skb)
@@ -7606,6 +7644,9 @@ static void ath11k_wmi_tlv_op_rx(struct ath11k_base *ab, struct sk_buff *skb)
case WMI_11D_NEW_COUNTRY_EVENTID:
ath11k_reg_11d_new_cc_event(ab, skb);
break;
+ case WMI_RFKILL_STATE_CHANGE_EVENTID:
+ ath11k_rfkill_state_change_event(ab, skb);
+ break;
/* TODO: Add remaining events */
default:
ath11k_dbg(ab, ATH11K_DBG_WMI, "Unknown eventid: 0x%x\n", id);
diff --git a/drivers/net/wireless/ath/ath11k/wmi.h b/drivers/net/wireless/ath/ath11k/wmi.h
index 20aa7234fc72..2f26ec1a8aa3 100644
--- a/drivers/net/wireless/ath/ath11k/wmi.h
+++ b/drivers/net/wireless/ath/ath11k/wmi.h
@@ -5215,6 +5215,31 @@ struct target_resource_config {
u32 twt_ap_sta_count;
};
+enum wmi_sys_cap_info_flags {
+ WMI_SYS_CAP_INFO_RXTX_LED = BIT(0),
+ WMI_SYS_CAP_INFO_RFKILL = BIT(1),
+};
+
+#define WMI_RFKILL_CFG_GPIO_PIN_NUM GENMASK(5, 0)
+#define WMI_RFKILL_CFG_RADIO_LEVEL BIT(6)
+#define WMI_RFKILL_CFG_PIN_AS_GPIO GENMASK(10, 7)
+
+enum wmi_rfkill_enable_radio {
+ WMI_RFKILL_ENABLE_RADIO_ON = 0,
+ WMI_RFKILL_ENABLE_RADIO_OFF = 1,
+};
+
+enum wmi_rfkill_radio_state {
+ WMI_RFKILL_RADIO_STATE_OFF = 1,
+ WMI_RFKILL_RADIO_STATE_ON = 2,
+};
+
+struct wmi_rfkill_state_change_ev {
+ u32 gpio_pin_num;
+ u32 int_type;
+ u32 radio_state;
+} __packed;
+
#define WMI_MAX_MEM_REQS 32
#define MAX_RADIOS 3
--
2.35.3