diff options
Diffstat (limited to 'code/fe310/eos/i2s_def.h')
| -rw-r--r-- | code/fe310/eos/i2s_def.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/code/fe310/eos/i2s_def.h b/code/fe310/eos/i2s_def.h new file mode 100644 index 0000000..3a09982 --- /dev/null +++ b/code/fe310/eos/i2s_def.h @@ -0,0 +1,24 @@ +#define I2S_ETYPE_MIC 1 +#define I2S_ETYPE_SPK 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 + 3) + +#define I2S_IDLE_CYCLES 8 + +#define I2S_PWM_SCALE_CK 2 +#define I2S_PWM_SCALE_CK_MASK 0x0003 + +/* 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 |