diff options
Diffstat (limited to 'code/fe310/eos/i2s.c')
| -rw-r--r-- | code/fe310/eos/i2s.c | 74 |
1 files changed, 48 insertions, 26 deletions
diff --git a/code/fe310/eos/i2s.c b/code/fe310/eos/i2s.c index 543102f..5d68f70 100644 --- a/code/fe310/eos/i2s.c +++ b/code/fe310/eos/i2s.c @@ -18,12 +18,11 @@ EOSABuf _eos_i2s_mic_buf; EOSABuf _eos_i2s_spk_buf; uint32_t _eos_i2s_ck_period = 0; -uint32_t _eos_i2s_mic_wm = 0; -uint32_t _eos_i2s_spk_wm = 0; uint32_t _eos_i2s_mic_volume = 2; uint32_t _eos_i2s_spk_volume = 3; static eos_evt_fptr_t evt_handler[I2S_MAX_HANDLER]; uint32_t _eos_i2s_evt_enable[I2S_MAX_HANDLER]; +uint32_t _eos_i2s_wm[I2S_MAX_HANDLER]; static void _abuf_init(EOSABuf *buf, uint8_t *array, uint16_t size) { buf->idx_r = 0; @@ -123,6 +122,11 @@ void eos_i2s_init(uint32_t sample_rate) { I2S_PWM_REG_WS(PWM_CMP1) = (_eos_i2s_ck_period + 1) * 32; I2S_PWM_REG_WS(PWM_CMP2) = (_eos_i2s_ck_period + 1) * 64 - 512; + _eos_i2s_evt_enable[I2S_EVT_MIC] = 0; + _eos_i2s_evt_enable[I2S_EVT_SPK] = 0; + evt_handler[I2S_EVT_MIC] = NULL; + evt_handler[I2S_EVT_SPK] = NULL; + eos_intr_set(I2S_IRQ_SD_ID, 0, NULL); eos_intr_set(I2S_IRQ_CK_ID, 0, NULL); eos_intr_set(I2S_IRQ_WS_ID, 0, NULL); @@ -133,29 +137,10 @@ void eos_i2s_init(uint32_t sample_rate) { eos_evtq_set_handler(EOS_EVT_AUDIO, audio_handler, EOS_EVT_FLAG_WRAP); } -void eos_i2s_init_mic(uint8_t *mic_arr, uint16_t mic_arr_size, eos_evt_fptr_t mic_wm_handler, uint16_t mic_wm) { - _abuf_init(&_eos_i2s_mic_buf, mic_arr, mic_arr_size); - _eos_i2s_mic_wm = mic_wm; - evt_handler[I2S_EVT_MIC] = mic_wm_handler; - if (mic_wm) { - _eos_i2s_evt_enable[I2S_EVT_MIC] = 1; - } else { - _eos_i2s_evt_enable[I2S_EVT_MIC] = 0; - } -} - -void eos_i2s_init_spk(uint8_t *spk_arr, uint16_t spk_arr_size, eos_evt_fptr_t spk_wm_handler, uint16_t spk_wm) { - _abuf_init(&_eos_i2s_spk_buf, spk_arr, spk_arr_size); - _eos_i2s_spk_wm = spk_wm; - evt_handler[I2S_EVT_SPK] = spk_wm_handler; - if (spk_wm) { - _eos_i2s_evt_enable[I2S_EVT_SPK] = 1; - } else { - _eos_i2s_evt_enable[I2S_EVT_SPK] = 0; - } -} - void eos_i2s_start(void) { + _eos_i2s_evt_enable[I2S_EVT_MIC] = 1; + _eos_i2s_evt_enable[I2S_EVT_SPK] = 1; + eos_intr_set_priority(I2S_IRQ_SD_ID, I2S_IRQ_SD_PRIORITY); eos_intr_set_priority(I2S_IRQ_CK_ID, I2S_IRQ_CK_PRIORITY); eos_intr_set_priority(I2S_IRQ_WS_ID, I2S_IRQ_WS_PRIORITY); @@ -185,8 +170,8 @@ void eos_i2s_stop(void) { eos_intr_set_priority(I2S_IRQ_WS_ID, 0); eos_intr_set_priority(I2S_IRQ_CI_ID, 0); eos_intr_mask(0); - eos_i2s_init_mic(NULL, 0, NULL, 0); - eos_i2s_init_spk(NULL, 0, NULL, 0); + eos_i2s_mic_init(NULL, 0); + eos_i2s_spk_init(NULL, 0); GPIO_REG(GPIO_IOF_EN) &= ~(1 << I2S_PIN_CK); GPIO_REG(GPIO_IOF_SEL) &= ~(1 << I2S_PIN_CK); @@ -197,6 +182,25 @@ void eos_i2s_stop(void) { GPIO_REG(GPIO_OUTPUT_VAL) &= ~((1 << I2S_PIN_CK) | (1 << I2S_PIN_WS)); } +void eos_i2s_mic_init(uint8_t *mic_arr, uint16_t mic_arr_size) { + clear_csr(mstatus, MSTATUS_MIE); + _abuf_init(&_eos_i2s_mic_buf, mic_arr, mic_arr_size); + set_csr(mstatus, MSTATUS_MIE); +} + +void eos_i2s_mic_set_handler(eos_evt_fptr_t wm_handler) { + clear_csr(mstatus, MSTATUS_MIE); + evt_handler[I2S_EVT_MIC] = wm_handler; + set_csr(mstatus, MSTATUS_MIE); +} + +void eos_i2s_mic_set_wm(uint16_t wm) { + clear_csr(mstatus, MSTATUS_MIE); + _eos_i2s_wm[I2S_EVT_MIC] = wm; + set_csr(mstatus, MSTATUS_MIE); + +} + uint16_t eos_i2s_mic_len(void) { clear_csr(mstatus, MSTATUS_MIE); uint16_t ret = _abuf_len(&_eos_i2s_mic_buf); @@ -228,6 +232,24 @@ int eos_i2s_mic_pop(uint8_t *sample) { return ret; } +void eos_i2s_spk_init(uint8_t *spk_arr, uint16_t spk_arr_size) { + clear_csr(mstatus, MSTATUS_MIE); + _abuf_init(&_eos_i2s_spk_buf, spk_arr, spk_arr_size); + set_csr(mstatus, MSTATUS_MIE); +} + +void eos_i2s_spk_set_handler(eos_evt_fptr_t wm_handler) { + clear_csr(mstatus, MSTATUS_MIE); + evt_handler[I2S_EVT_SPK] = wm_handler; + set_csr(mstatus, MSTATUS_MIE); +} + +void eos_i2s_spk_set_wm(uint16_t wm) { + clear_csr(mstatus, MSTATUS_MIE); + _eos_i2s_wm[I2S_EVT_SPK] = wm; + set_csr(mstatus, MSTATUS_MIE); +} + uint16_t eos_i2s_spk_len(void) { clear_csr(mstatus, MSTATUS_MIE); uint16_t ret = _abuf_len(&_eos_i2s_spk_buf); |