Initial commit - sync AliceRC to Gitea

AliceRC_ESP32/components/audio/audio.h

@@ -0,0 +1,40 @@
+/**
+ * @file audio.h
+ * @brief Audio driver for PWM/DAC audio output
+ */
+#pragma once
+
+#include <stdint.h>
+#include "esp_err.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Audio sample rate */
+#define AUDIO_SAMPLE_RATE   8000
+
+/* Initialize audio output (PWM for ESP32S3, DAC for ESP32) */
+esp_err_t audio_init(int gpio);
+
+/* Play a beep/tone */
+void audio_beep(uint16_t freq_hz, uint16_t duration_ms);
+
+/* Play a startup sound */
+void audio_play_startup(void);
+
+/* Play a warning beep */
+void audio_play_warning(void);
+
+/* Set volume (0-100) */
+void audio_set_volume(uint8_t volume);
+
+/* Get current volume */
+uint8_t audio_get_volume(void);
+
+/* Audio task for continuous audio playback */
+void audio_task(void *pvParameters);
+
+#ifdef __cplusplus
+}
+#endif