drivers: wifi: Swctrl1 configuration for coex

Support to configure swctrl1 as input or output for coexistence.

Signed-off-by: Murali Thokala <[email protected]>

Author: muraliThokala

drivers/wifi/nrf_wifi/Kconfig.nrfwifi

@@ -182,6 +182,18 @@ config NRF70_SR_COEX_RF_SWITCH
 	  If this GPIO is asserted (1), the SR side RF switch is connected to the Wi-Fi side (shared antenna).
 	  If this GPIO is de-asserted (0), the SR side RF switch is connected to the SR side (separate antenna).
 
+config NRF70_SR_COEX_SLEEP_CTRL_GPIO_CTRL
+	bool "Configuration of GPIO control for coexistence"
+	default y
+
+config NRF70_SR_COEX_SWCTRL1_OUTPUT
+	int "Configure SWCTRIL1 as output"
+	default 0
+
+config NRF70_SR_COEX_BT_GRANT_ACTIVE_LOW
+	int "Configure BT grant active low"
+	default 1
+
 config NRF70_WORKQ_STACK_SIZE
 	int "Stack size for workqueue"
 	default 4096

drivers/wifi/nrf_wifi/src/coex.c

@@ -103,7 +103,7 @@ const uint16_t config_buffer_5G[] = {
 /* Shared antenna */
 const uint32_t ch_config_sha[] = {
 	0x00000028, 0x00000000, 0x001e1023, 0x00000000, 0x00000000,
-	0x00000000, 0x00000021, 0x000002ca, 0x00000050, 0x00000000,
+	0x00000000, 0x00000021, 0x000002ca, 0x0000005A, 0x00000000,
 	0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000,
 	0x00000000
 };

drivers/wifi/nrf_wifi/src/fmac_main.c

@@ -582,6 +582,13 @@ enum nrf_wifi_status nrf_wifi_fmac_dev_add_zep(struct nrf_wifi_drv_priv_zep *drv
 
 	unsigned int fw_ver = 0;
 
+#if defined(CONFIG_NRF70_SR_COEX_SLEEP_CTRL_GPIO_CTRL) && \
+	defined(CONFIG_NRF70_SYSTEM_MODE)
+	unsigned int alt_swctrl1_function_bt_coex_status1 =
+			(~CONFIG_NRF70_SR_COEX_SWCTRL1_OUTPUT) & 0x1;
+	unsigned int invert_bt_coex_grant_output = CONFIG_NRF70_SR_COEX_BT_GRANT_ACTIVE_LOW;
+#endif /* CONFIG_NRF70_SR_COEX_SLEEP_CTRL_GPIO_CTRL && CONFIG_NRF70_SYSTEM_MODE */
+
 	rpu_ctx_zep = &drv_priv_zep->rpu_ctx_zep;
 
 	rpu_ctx_zep->drv_priv_zep = drv_priv_zep;
@@ -625,6 +632,18 @@ enum nrf_wifi_status nrf_wifi_fmac_dev_add_zep(struct nrf_wifi_drv_priv_zep *drv
 
 	configure_board_dep_params(&board_params);
 
+#if defined(CONFIG_NRF70_SR_COEX_SLEEP_CTRL_GPIO_CTRL) && \
+	defined(CONFIG_NRF70_SYSTEM_MODE)
+	LOG_INF("Configuring SLEEP CTRL GPIO control register\n");
+	status = nrf_wifi_coex_config_sleep_ctrl_gpio_ctrl(rpu_ctx_zep->rpu_ctx,
+			alt_swctrl1_function_bt_coex_status1,
+			invert_bt_coex_grant_output);
+	if (status != NRF_WIFI_STATUS_SUCCESS) {
+		LOG_ERR("%s: Failed to configure GPIO control register", __func__);
+		goto err;
+	}
+#endif /* CONFIG_NRF70_SR_COEX_SLEEP_CTRL_GPIO_CTRL  && CONFIG_NRF70_SYSTEM_MODE */
+
 #ifdef CONFIG_NRF70_RADIO_TEST
 	status = nrf_wifi_rt_fmac_dev_init(rpu_ctx_zep->rpu_ctx,
 #ifdef CONFIG_NRF_WIFI_LOW_POWER