From a11a851faaeda2ba1eea8a608d45541b3deeacd5 Mon Sep 17 00:00:00 2001
From: Alexey Zholtikov <git@zh.com.ru>
Date: Wed, 15 Oct 2025 21:20:34 +0300
Subject: [PATCH] wip:

---
 zh_ac_dimmer.c | 21 +++++++++++++--------
 1 file changed, 13 insertions(+), 8 deletions(-)

diff --git a/zh_ac_dimmer.c b/zh_ac_dimmer.c
index 8c64399..de05406 100644
--- a/zh_ac_dimmer.c
+++ b/zh_ac_dimmer.c
@@ -27,6 +27,7 @@ static zh_ac_dimmer_init_config_t _init_config = {0};
 volatile static bool _is_dimmer_work = false;
 volatile static uint64_t _current_micros = 0;
 volatile static uint16_t _current_frequency = 0;
+volatile static uint16_t _old_frequency = 0;
 volatile static uint8_t _dimmer_value = 0;
 static bool _is_initialized = false;
 
@@ -98,7 +99,7 @@ esp_err_t _zh_ac_dimmer_gpio_init(const zh_ac_dimmer_init_config_t *config)
         .intr_type = GPIO_INTR_DISABLE,
         .mode = GPIO_MODE_OUTPUT,
         .pin_bit_mask = (1ULL << config->triac_gpio),
-        .pull_down_en = GPIO_PULLDOWN_ENABLE,
+        .pull_down_en = GPIO_PULLDOWN_DISABLE,
         .pull_up_en = GPIO_PULLUP_DISABLE,
     };
     esp_err_t err = gpio_config(&triac_gpio_config);
@@ -107,7 +108,7 @@ esp_err_t _zh_ac_dimmer_gpio_init(const zh_ac_dimmer_init_config_t *config)
         .intr_type = GPIO_INTR_ANYEDGE,
         .mode = GPIO_MODE_INPUT,
         .pin_bit_mask = (1ULL << config->zero_cross_gpio),
-        .pull_down_en = GPIO_PULLDOWN_ENABLE,
+        .pull_down_en = GPIO_PULLDOWN_DISABLE,
         .pull_up_en = GPIO_PULLUP_DISABLE,
     };
     err = gpio_config(&zero_cross_gpio_config);
@@ -134,17 +135,17 @@ esp_err_t _zh_ac_dimmer_timer_init(void)
     };
     esp_err_t err = gptimer_new_timer(&timer_config, &_dimmer_timer);
     ZH_ERROR_CHECK(err == ESP_OK, err, "Failed create dimmer timer.");
-    err = gptimer_enable(_dimmer_timer);
-    ZH_ERROR_CHECK(err == ESP_OK, err, "Failed enable dimmer timer.");
     gptimer_event_callbacks_t cbs = {
         .on_alarm = _zh_ac_dimmer_timer_on_alarm_cb,
     };
     err = gptimer_register_event_callbacks(_dimmer_timer, &cbs, NULL);
     ZH_ERROR_CHECK(err == ESP_OK, err, "Failed register dimmer timer event callbacks.");
+    err = gptimer_enable(_dimmer_timer);
+    ZH_ERROR_CHECK(err == ESP_OK, err, "Failed enable dimmer timer.");
     return ESP_OK;
 }
 
-void IRAM_ATTR _zh_ac_dimmer_isr_handler(void *arg)
+void  _zh_ac_dimmer_isr_handler(void *arg)
 {
     if (_is_dimmer_work == false)
     {
@@ -173,19 +174,23 @@ void IRAM_ATTR _zh_ac_dimmer_isr_handler(void *arg)
                 gpio_set_level(_init_config.triac_gpio, 1);
                 return;
             }
+            // ESP_DRAM_LOGI(TAG, "%d", _current_frequency);
             gptimer_alarm_config_t alarm_config = {
-                .alarm_count = (_current_frequency / 100) * (100 - _dimmer_value),
+                .alarm_count = (9000/ 100) * (100 - _dimmer_value),
                 .flags.auto_reload_on_alarm = false,
             };
             gptimer_set_alarm_action(_dimmer_timer, &alarm_config);
             gptimer_start(_dimmer_timer);
         }
     }
+    // ESP_DRAM_LOGI(TAG, "%d", _current_frequency);
 }
 
-bool IRAM_ATTR _zh_ac_dimmer_timer_on_alarm_cb(gptimer_handle_t timer, const gptimer_alarm_event_data_t *edata, void *user_ctx)
+bool _zh_ac_dimmer_timer_on_alarm_cb(gptimer_handle_t timer, const gptimer_alarm_event_data_t *edata, void *user_ctx)
 {
-    gptimer_stop(_dimmer_timer);
     gpio_set_level(_init_config.triac_gpio, 1);
+    gptimer_stop(_dimmer_timer);
+    gptimer_set_raw_count(_dimmer_timer, 0);
+    // gpio_set_level(_init_config.triac_gpio, 0);
     return false;
 }
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