From 7db51f40961aa3f471a195de30ccf60a3298dddf Mon Sep 17 00:00:00 2001
From: Andy Green <andy@warmcat.com>
Date: Sat, 12 Feb 2022 05:58:13 +0000
Subject: [PATCH] esp32s2: wifi and pwm

s2 ROM needs an explicit set_mode() as tested on Kaluga
Adapt PWM but unable to test as Kaluga has a smart RGB LED unlike Wrover
Kit
---
 .../freertos/esp32/drivers/netdev/wifi-esp32.c    |  6 ++++--
 lib/plat/freertos/esp32/drivers/pwm-esp32.c       | 15 ++++++++++++++-
 2 files changed, 18 insertions(+), 3 deletions(-)

diff --git a/lib/plat/freertos/esp32/drivers/netdev/wifi-esp32.c b/lib/plat/freertos/esp32/drivers/netdev/wifi-esp32.c
index c9300e077..ef18d5b11 100644
--- a/lib/plat/freertos/esp32/drivers/netdev/wifi-esp32.c
+++ b/lib/plat/freertos/esp32/drivers/netdev/wifi-esp32.c
@@ -406,6 +406,8 @@ lws_netdev_plat_wifi_init(void)
 		return 1;
 	}
 
+	 ESP_ERROR_CHECK(esp_wifi_set_mode(WIFI_MODE_STA));
+
 	return 0;
 }
 
@@ -445,11 +447,11 @@ lws_netdev_wifi_up_plat(struct lws_netdev_instance *nd)
 		return 0;
 
 	ESP_ERROR_CHECK(esp_event_handler_instance_register(IP_EVENT,
-			  IP_EVENT_STA_GOT_IP, &_event_handler_ip, nd,
+			  IP_EVENT_STA_GOT_IP, _event_handler_ip, nd,
 			  &wnde32->instance_got_ip));
 
 	ESP_ERROR_CHECK(esp_event_handler_instance_register(WIFI_EVENT,
-			  ESP_EVENT_ANY_ID, &_event_handler_wifi, nd,
+			  ESP_EVENT_ANY_ID, _event_handler_wifi, nd,
 			  &wnde32->instance_any_id));
 
 	esp_wifi_start();
diff --git a/lib/plat/freertos/esp32/drivers/pwm-esp32.c b/lib/plat/freertos/esp32/drivers/pwm-esp32.c
index 1950f2d1a..f71540e33 100644
--- a/lib/plat/freertos/esp32/drivers/pwm-esp32.c
+++ b/lib/plat/freertos/esp32/drivers/pwm-esp32.c
@@ -29,10 +29,18 @@
 #define _LEDC_HIGH_SPEED_MODE 0
 
 static const ledc_timer_config_t tc = {
+#if defined(CONFIG_IDF_TARGET_ESP32S2)
+	.speed_mode             	= LEDC_LOW_SPEED_MODE,
+#else
 	.speed_mode             	= _LEDC_HIGH_SPEED_MODE,
+#endif
 	.duty_resolution        	= LEDC_TIMER_13_BIT,
 	.timer_num              	= LEDC_TIMER_0,
+#if defined(CONFIG_IDF_TARGET_ESP32S2)
+	.freq_hz                	= 1000,
+#else
 	.freq_hz                	= 5000,
+#endif
 	.clk_cfg                	= LEDC_AUTO_CLK
 };
 
@@ -40,9 +48,14 @@ int
 lws_pwm_plat_init(const struct lws_pwm_ops *lo)
 {
 	ledc_channel_config_t lc = {
+#if defined(CONFIG_IDF_TARGET_ESP32S2)
+		.speed_mode		= LEDC_LOW_SPEED_MODE,
 		.duty			= 8191,
-		.intr_type		= LEDC_INTR_FADE_END,
+#else
 		.speed_mode		= _LEDC_HIGH_SPEED_MODE,
+		.duty			= 8191,
+#endif
+		.intr_type		= LEDC_INTR_FADE_END,
 		.timer_sel		= LEDC_TIMER_0,
 	};
 	size_t n;