ath10k: add pdev param support to enable/disable btcoex

10.4 firmware has support to enable or disable btcoex functionality
without reloading firmware via wmi pdev param. Add provision to send
pdev param command via existing btcoex knob.
Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

drivers/net/wireless/ath/ath10k/core.c

@@ -1756,6 +1756,16 @@ int ath10k_core_start(struct ath10k *ar, enum ath10k_firmware_mode mode,
 		if (test_bit(WMI_SERVICE_BSS_CHANNEL_INFO_64, ar->wmi.svc_map))
 			val |= WMI_10_4_BSS_CHANNEL_INFO_64;
 
+		/* 10.4 firmware supports BT-Coex without reloading firmware
+		 * via pdev param. To support Bluetooth coexistence pdev param,
+		 * WMI_COEX_GPIO_SUPPORT of extended resource config should be
+		 * enabled always.
+		 */
+		if (test_bit(WMI_SERVICE_COEX_GPIO, ar->wmi.svc_map) &&
+		    test_bit(ATH10K_FW_FEATURE_BTCOEX_PARAM,
+			     ar->running_fw->fw_file.fw_features))
+			val |= WMI_10_4_COEX_GPIO_SUPPORT;
+
 		status = ath10k_mac_ext_resource_config(ar, val);
 		if (status) {
 			ath10k_err(ar,

drivers/net/wireless/ath/ath10k/debug.c

@@ -2125,6 +2125,7 @@ static ssize_t ath10k_write_btcoex(struct file *file,
 	size_t buf_size;
 	int ret;
 	bool val;
+	u32 pdev_param;
 
 	buf_size = min(count, (sizeof(buf) - 1));
 	if (copy_from_user(buf, ubuf, buf_size))
@@ -2148,14 +2149,25 @@ static ssize_t ath10k_write_btcoex(struct file *file,
 		goto exit;
 	}
 
+	pdev_param = ar->wmi.pdev_param->enable_btcoex;
+	if (test_bit(ATH10K_FW_FEATURE_BTCOEX_PARAM,
+		     ar->running_fw->fw_file.fw_features)) {
+		ret = ath10k_wmi_pdev_set_param(ar, pdev_param, val);
+		if (ret) {
+			ath10k_warn(ar, "failed to enable btcoex: %d\n", ret);
+			ret = count;
+			goto exit;
+		}
+	} else {
+		ath10k_info(ar, "restarting firmware due to btcoex change");
+		queue_work(ar->workqueue, &ar->restart_work);
+	}
+
 	if (val)
 		set_bit(ATH10K_FLAG_BTCOEX, &ar->dev_flags);
 	else
 		clear_bit(ATH10K_FLAG_BTCOEX, &ar->dev_flags);
 
-	ath10k_info(ar, "restarting firmware due to btcoex change");
-
-	queue_work(ar->workqueue, &ar->restart_work);
 	ret = count;
 
 exit:

drivers/net/wireless/ath/ath10k/mac.c

@@ -4468,6 +4468,19 @@ static int ath10k_start(struct ieee80211_hw *hw)
 		}
 	}
 
+	param = ar->wmi.pdev_param->enable_btcoex;
+	if (test_bit(WMI_SERVICE_COEX_GPIO, ar->wmi.svc_map) &&
+	    test_bit(ATH10K_FW_FEATURE_BTCOEX_PARAM,
+		     ar->running_fw->fw_file.fw_features)) {
+		ret = ath10k_wmi_pdev_set_param(ar, param, 0);
+		if (ret) {
+			ath10k_warn(ar,
+				    "failed to set btcoex param: %d\n", ret);
+			goto err_core_stop;
+		}
+		clear_bit(ATH10K_FLAG_BTCOEX, &ar->dev_flags);
+	}
+
 	ar->num_started_vdevs = 0;
 	ath10k_regd_update(ar);
 

drivers/net/wireless/ath/ath10k/wmi.c

@@ -1104,6 +1104,7 @@ static struct wmi_pdev_param_map wmi_pdev_param_map = {
 	.wapi_mbssid_offset = WMI_PDEV_PARAM_UNSUPPORTED,
 	.arp_srcaddr = WMI_PDEV_PARAM_UNSUPPORTED,
 	.arp_dstaddr = WMI_PDEV_PARAM_UNSUPPORTED,
+	.enable_btcoex = WMI_PDEV_PARAM_UNSUPPORTED,
 };
 
 static struct wmi_pdev_param_map wmi_10x_pdev_param_map = {
@@ -1199,6 +1200,7 @@ static struct wmi_pdev_param_map wmi_10x_pdev_param_map = {
 	.wapi_mbssid_offset = WMI_PDEV_PARAM_UNSUPPORTED,
 	.arp_srcaddr = WMI_PDEV_PARAM_UNSUPPORTED,
 	.arp_dstaddr = WMI_PDEV_PARAM_UNSUPPORTED,
+	.enable_btcoex = WMI_PDEV_PARAM_UNSUPPORTED,
 };
 
 static struct wmi_pdev_param_map wmi_10_2_4_pdev_param_map = {
@@ -1294,6 +1296,7 @@ static struct wmi_pdev_param_map wmi_10_2_4_pdev_param_map = {
 	.wapi_mbssid_offset = WMI_PDEV_PARAM_UNSUPPORTED,
 	.arp_srcaddr = WMI_PDEV_PARAM_UNSUPPORTED,
 	.arp_dstaddr = WMI_PDEV_PARAM_UNSUPPORTED,
+	.enable_btcoex = WMI_PDEV_PARAM_UNSUPPORTED,
 };
 
 /* firmware 10.2 specific mappings */
@@ -1550,6 +1553,7 @@ static struct wmi_pdev_param_map wmi_10_4_pdev_param_map = {
 	.wapi_mbssid_offset = WMI_10_4_PDEV_PARAM_WAPI_MBSSID_OFFSET,
 	.arp_srcaddr = WMI_10_4_PDEV_PARAM_ARP_SRCADDR,
 	.arp_dstaddr = WMI_10_4_PDEV_PARAM_ARP_DSTADDR,
+	.enable_btcoex = WMI_10_4_PDEV_PARAM_ENABLE_BTCOEX,
 };
 
 static const struct wmi_peer_flags_map wmi_peer_flags_map = {

drivers/net/wireless/ath/ath10k/wmi.h

@@ -3447,6 +3447,7 @@ struct wmi_pdev_param_map {
 	u32 wapi_mbssid_offset;
 	u32 arp_srcaddr;
 	u32 arp_dstaddr;
+	u32 enable_btcoex;
 };
 
 #define WMI_PDEV_PARAM_UNSUPPORTED 0
@@ -3760,6 +3761,9 @@ enum wmi_10_4_pdev_param {
 	WMI_10_4_PDEV_PARAM_ATF_OBSS_NOISE_SCH,
 	WMI_10_4_PDEV_PARAM_ATF_OBSS_NOISE_SCALING_FACTOR,
 	WMI_10_4_PDEV_PARAM_CUST_TXPOWER_SCALE,
+	WMI_10_4_PDEV_PARAM_ATF_DYNAMIC_ENABLE,
+	WMI_10_4_PDEV_PARAM_ATF_SSID_GROUP_POLICY,
+	WMI_10_4_PDEV_PARAM_ENABLE_BTCOEX,
 };
 
 struct wmi_pdev_set_param_cmd {