initial commit

components/ExternLib/codec_board/dummy_codec.h

@@ -0,0 +1,33 @@
+#include "esp_codec_dev.h"
+#include "audio_codec_ctrl_if.h"
+#include "audio_codec_gpio_if.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @brief  Dummy codec configuration
+ */
+typedef struct {
+    int16_t                      enable_gpio;   /*!< Enable GPIO setting */
+    const audio_codec_gpio_if_t *gpio_if;       /*!< GPIO interface to control gpio */
+} dummy_codec_cfg_t;
+
+/**
+ * @brief  Create a dummy codec
+ *
+ * @note  Dummy codec means use I2S to transfer audio data with out I2C control interface
+ *
+ * @param[in]  codec_cfg  Dummy codec configuration
+ *
+ * @return
+ *       - NULL    No memory for dummy codec
+ *       - Others  Dummy codec instance
+ *
+ */
+const audio_codec_if_t *dummy_codec_new(dummy_codec_cfg_t *codec_cfg);
+
+#ifdef __cplusplus
+}
+#endif