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#define I2S_EVT_MIC 0x0
#define I2S_EVT_SPK 0x1
#define I2S_MAX_HANDLER 2
#define I2S_PIN_CK 1 /* PWM 0.1 */
#define I2S_PIN_CK_SW 21 /* PWM 1.2 */
#define I2S_PIN_CK_SR 18
#define I2S_PIN_WS_MIC 19 /* PWM 1.1 */
#define I2S_PIN_WS_SPK 11 /* PWM 2.1 */
#define I2S_PIN_SD_IN 13
#define I2S_PIN_SD_OUT 12
#define I2S_IRQ_WS_ID (INT_PWM2_BASE + 0)
#define I2S_IRQ_SD_ID (INT_PWM2_BASE + 2)
#define I2S_IRQ_WS_PRIORITY 6
#define I2S_IRQ_SD_PRIORITY 7
#define I2S_IDLE_CYCLES 8
#define I2S_PWM_SCALE_CK 2
#define I2S_PWM_SCALE_CK_MASK 0x0003
#define I2S_ABUF_SIZE_CHUNK 16
/* asm */
#define I2S_ABUF_OFF_IDXR 0
#define I2S_ABUF_OFF_IDXW 2
#define I2S_ABUF_OFF_SIZE 4
#define I2S_ABUF_OFF_ARRAY 8
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