From 412a8f99928beff605805807b0f07f6bf8d0a965 Mon Sep 17 00:00:00 2001 From: Uros Majstorovic Date: Fri, 13 May 2022 12:45:53 +0200 Subject: code rename --- fw/fe310/eos/i2s.c | 477 ----------------------------------------------------- 1 file changed, 477 deletions(-) delete mode 100644 fw/fe310/eos/i2s.c (limited to 'fw/fe310/eos/i2s.c') diff --git a/fw/fe310/eos/i2s.c b/fw/fe310/eos/i2s.c deleted file mode 100644 index 9cc9d9c..0000000 --- a/fw/fe310/eos/i2s.c +++ /dev/null @@ -1,477 +0,0 @@ -#include -#include - -#include "encoding.h" -#include "platform.h" -#include "prci_driver.h" - -#include "eos.h" -#include "interrupt.h" -#include "event.h" - -#include "board.h" - -#include "i2s.h" -#include "i2s_priv.h" - -#define I2S_REG_CK(o) _REG32(I2S_CTRL_ADDR_CK, o) -#define I2S_REG_WS_MIC(o) _REG32(I2S_CTRL_ADDR_WS_MIC, o) -#define I2S_REG_WS_SPK(o) _REG32(I2S_CTRL_ADDR_WS_SPK, o) - -#define I2S_PIN_PWM ((1 << I2S_PIN_CK) | (1 << I2S_PIN_CK_SW) | (1 << I2S_PIN_WS_MIC) | (1 << I2S_PIN_WS_SPK)) - -#define MIN(X, Y) (((X) < (Y)) ? (X) : (Y)) -#define MAX(X, Y) (((X) > (Y)) ? (X) : (Y)) - -#define EOS_ABUF_IDX_MASK(IDX, SIZE) ((IDX) & ((SIZE) - 1)) - -EOSABuf i2s_mic_buf; -EOSABuf i2s_spk_buf; - -static eos_i2s_handler_t i2s_mic_handler = NULL; -static eos_i2s_handler_t i2s_spk_handler = NULL; -static uint32_t i2s_clk_period; -static uint8_t i2s_mic_volume = 0; /* 0 - 8 */ -static uint8_t i2s_spk_volume = 16; /* 0 - 16 */ - -uint32_t _eos_i2s_drvr[] = { - 0, /* I2S_MIC_BUF */ - 0, /* I2S_SPK_BUF */ - EOS_I2S_FMT_PCM16, /* I2S_FMT */ - EOS_I2S_MODE_STEREO, /* I2S_MODE */ - 0, /* I2S_MIC_WM */ - 0, /* I2S_SPK_WM */ - 0, /* I2S_MIC_EVT */ - 0, /* I2S_SPK_EVT */ - 0, /* I2S_MIC_CMP2 */ - 0, /* I2S_MIC_CMP3 */ - 0, /* I2S_SAMPLE */ -}; - -#define I2S_MIC_BUF 0 -#define I2S_SPK_BUF 1 -#define I2S_FMT 2 -#define I2S_MODE 3 -#define I2S_MIC_WM 4 -#define I2S_SPK_WM 5 -#define I2S_MIC_EVT 6 -#define I2S_SPK_EVT 7 -#define I2S_MIC_CMP2 8 -#define I2S_MIC_CMP3 9 -#define I2S_SAMPLE 10 - -static void _abuf_init(EOSABuf *buf, uint8_t *array, uint16_t size) { - buf->idx_r = 0; - buf->idx_w = 0; - buf->size = size; - buf->array = array; -} - -static int _abuf_push8(EOSABuf *buf, uint8_t sample) { - if ((uint16_t)(buf->idx_w - buf->idx_r) == buf->size) return EOS_ERR_FULL; - - buf->array[EOS_ABUF_IDX_MASK(buf->idx_w, buf->size)] = sample; - buf->idx_w++; - return EOS_OK; -} - -static int _abuf_push16(EOSABuf *buf, uint16_t sample) { - if ((uint16_t)(buf->idx_w - buf->idx_r) == buf->size) return EOS_ERR_FULL; - - buf->array[EOS_ABUF_IDX_MASK(buf->idx_w, buf->size)] = sample >> 8; - buf->array[EOS_ABUF_IDX_MASK(buf->idx_w + 1, buf->size)] = sample & 0xFF; - buf->idx_w += 2; - return EOS_OK; -} - -static int _abuf_pop8(EOSABuf *buf, uint8_t *sample) { - if (buf->idx_r == buf->idx_w) { - return EOS_ERR_EMPTY; - } else { - *sample = buf->array[EOS_ABUF_IDX_MASK(buf->idx_r, buf->size)]; - buf->idx_r++; - return EOS_OK; - } -} - -static int _abuf_pop16(EOSABuf *buf, uint16_t *sample) { - if (buf->idx_r == buf->idx_w) { - return EOS_ERR_EMPTY; - } else { - *sample = buf->array[EOS_ABUF_IDX_MASK(buf->idx_r, buf->size)] << 8; - *sample |= buf->array[EOS_ABUF_IDX_MASK(buf->idx_r + 1, buf->size)]; - buf->idx_r += 2; - return EOS_OK; - } -} - -static void _abuf_flush(EOSABuf *buf) { - buf->idx_r = 0; - buf->idx_w = 0; -} - -static uint16_t _abuf_len(EOSABuf *buf) { - return buf->idx_w - buf->idx_r; -} - -static void i2s_handle_evt(unsigned char type, unsigned char *buffer, uint16_t len) { - switch(type & ~EOS_EVT_MASK) { - case EOS_I2S_ETYPE_MIC: - if (i2s_mic_handler) { - i2s_mic_handler(type); - clear_csr(mstatus, MSTATUS_MIE); - _eos_i2s_drvr[I2S_MIC_EVT] = 1; - set_csr(mstatus, MSTATUS_MIE); - } - break; - - case EOS_I2S_ETYPE_SPK: - if (i2s_spk_handler) { - i2s_spk_handler(type); - clear_csr(mstatus, MSTATUS_MIE); - _eos_i2s_drvr[I2S_SPK_EVT] = 1; - set_csr(mstatus, MSTATUS_MIE); - } - break; - - default: - eos_evtq_bad_handler(type, buffer, len); - break; - } -} - -#define PLIC_PRIORITY 0x0C000000 - -static void i2s_cmp_set(void) { - int c = 7; /* interrupt will trigger c i2s clocks before spk ws */ - int spk_ws_offset = i2s_spk_volume - 16 + i2s_mic_volume; - volatile uint32_t *p = (uint32_t *)PLIC_PRIORITY+I2S_IRQ_SD_ID; - - /* interrupt trigger - will start with left channel */ - if (spk_ws_offset - c < 0) { - I2S_REG_WS_SPK(PWM_CMP3) = i2s_clk_period * (64 + spk_ws_offset - c); - } else { - I2S_REG_WS_SPK(PWM_CMP3) = i2s_clk_period * (spk_ws_offset - c); - } - - /* disable interrupt for this cycle */ - *p = 0; - - /* empty buffers */ - // i2s_mic_buf.idx_r = i2s_mic_buf.idx_w; - // i2s_spk_buf.idx_w = i2s_spk_buf.idx_r; - - /* adjust spk ws relative to mic ws */ - if (spk_ws_offset <= 0) { - spk_ws_offset += 32; - GPIO_REG(GPIO_OUTPUT_XOR) &= ~(1 << I2S_PIN_WS_SPK); - } else { - GPIO_REG(GPIO_OUTPUT_XOR) |= (1 << I2S_PIN_WS_SPK); - } - I2S_REG_WS_SPK(PWM_CMP1) = i2s_clk_period * spk_ws_offset; - I2S_REG_WS_SPK(PWM_CMP2) = i2s_clk_period * (32 + spk_ws_offset); - - /* mic cmp2 relative to interrupt trigger */ - _eos_i2s_drvr[I2S_MIC_CMP2] = (17 + c - i2s_spk_volume) * i2s_clk_period; /* (17 + c - i2s_spk_volume) == (1 + i2s_mic_volume) - (spk_ws_offset - c) */ - _eos_i2s_drvr[I2S_MIC_CMP3] = 16 * i2s_clk_period; -} - -extern void _eos_i2s_start_pwm(void); - -int eos_i2s_init(uint8_t wakeup_cause) { - eos_evtq_set_handler(EOS_EVT_I2S, i2s_handle_evt); - - I2S_REG_CK(PWM_CFG) = 0; - I2S_REG_WS_MIC(PWM_CFG) = 0; - I2S_REG_WS_SPK(PWM_CFG) = 0; - - eos_i2s_init_mux(); - - GPIO_REG(GPIO_OUTPUT_VAL) |= (1 << I2S_PIN_CK_SW); - GPIO_REG(GPIO_OUTPUT_VAL) &= ~(1 << I2S_PIN_CK_SR); - - GPIO_REG(GPIO_INPUT_EN) &= ~(1 << I2S_PIN_CK_SW); - GPIO_REG(GPIO_OUTPUT_EN) |= (1 << I2S_PIN_CK_SW); - - GPIO_REG(GPIO_INPUT_EN) &= ~(1 << I2S_PIN_CK_SR); - GPIO_REG(GPIO_OUTPUT_EN) |= (1 << I2S_PIN_CK_SR); - - return EOS_OK; -} - -void eos_i2s_init_mux(void) { - GPIO_REG(GPIO_OUTPUT_VAL) &= ~((1 << I2S_PIN_CK) | (1 << I2S_PIN_WS_MIC) | (1 << I2S_PIN_WS_SPK)); - - GPIO_REG(GPIO_INPUT_EN) &= ~(1 << I2S_PIN_CK); - GPIO_REG(GPIO_OUTPUT_EN) |= (1 << I2S_PIN_CK); - - GPIO_REG(GPIO_INPUT_EN) &= ~(1 << I2S_PIN_WS_MIC); - GPIO_REG(GPIO_OUTPUT_EN) |= (1 << I2S_PIN_WS_MIC); - - GPIO_REG(GPIO_INPUT_EN) &= ~(1 << I2S_PIN_WS_SPK); - GPIO_REG(GPIO_OUTPUT_EN) |= (1 << I2S_PIN_WS_SPK); - - GPIO_REG(GPIO_INPUT_EN) |= (1 << I2S_PIN_SD_IN); - GPIO_REG(GPIO_OUTPUT_EN) &= ~(1 << I2S_PIN_SD_IN); - - GPIO_REG(GPIO_INPUT_EN) &= ~(1 << I2S_PIN_SD_OUT); - GPIO_REG(GPIO_OUTPUT_EN) &= ~(1 << I2S_PIN_SD_OUT); -} - -void eos_i2s_start(uint32_t sample_rate) { - i2s_clk_period = ((PRCI_get_cpu_freq() / (sample_rate * 64)) & ~I2S_PWM_SCALE_CK_MASK) + 1; - - GPIO_REG(GPIO_INPUT_EN) |= (1 << I2S_PIN_SD_IN); - GPIO_REG(GPIO_OUTPUT_EN) &= ~(1 << I2S_PIN_SD_IN); - - GPIO_REG(GPIO_INPUT_EN) &= ~(1 << I2S_PIN_SD_OUT); - GPIO_REG(GPIO_OUTPUT_EN) &= ~(1 << I2S_PIN_SD_OUT); - - I2S_REG_CK(PWM_CMP0) = i2s_clk_period >> I2S_PWM_SCALE_CK; - I2S_REG_CK(PWM_CMP1) = I2S_REG_CK(PWM_CMP0) / 2; - I2S_REG_CK(PWM_CMP2) = 0; - I2S_REG_CK(PWM_CMP3) = 0; - - I2S_REG_WS_MIC(PWM_CMP0) = i2s_clk_period * 64 - 1; - I2S_REG_WS_MIC(PWM_CMP1) = i2s_clk_period * 32; - - I2S_REG_WS_SPK(PWM_CMP0) = i2s_clk_period * 64 - 1; - i2s_cmp_set(); - - I2S_REG_CK(PWM_COUNT) = 0; - I2S_REG_WS_MIC(PWM_COUNT) = 0; - I2S_REG_WS_SPK(PWM_COUNT) = i2s_clk_period / 2; - - if (i2s_mic_buf.array && i2s_mic_buf.size) { - _eos_i2s_drvr[I2S_MIC_BUF] = (uint32_t)&i2s_mic_buf; - if (_eos_i2s_drvr[I2S_MIC_WM] == 0) { - _eos_i2s_drvr[I2S_MIC_WM] = i2s_mic_buf.size / 2; - } - } - if (i2s_spk_buf.array && i2s_spk_buf.size) { - _eos_i2s_drvr[I2S_SPK_BUF] = (uint32_t)&i2s_spk_buf; - if (_eos_i2s_drvr[I2S_SPK_WM] == 0) { - _eos_i2s_drvr[I2S_SPK_WM] = i2s_spk_buf.size / 2; - } - } - if (i2s_mic_handler) _eos_i2s_drvr[I2S_MIC_EVT] = 1; - if (i2s_spk_handler) _eos_i2s_drvr[I2S_SPK_EVT] = 1; - - eos_intr_set_priority(I2S_IRQ_SD_ID, IRQ_PRIORITY_I2S_SD); - eos_intr_set_priority(I2S_IRQ_WS_ID, IRQ_PRIORITY_I2S_WS); - eos_intr_enable(I2S_IRQ_SD_ID); - eos_intr_enable(I2S_IRQ_WS_ID); - - _eos_i2s_start_pwm(); - /* - I2S_REG_CK(PWM_CFG) = PWM_CFG_ENALWAYS | PWM_CFG_ZEROCMP | I2S_PWM_SCALE_CK; - I2S_REG_WS_MIC(PWM_CFG) = PWM_CFG_ENALWAYS | PWM_CFG_ZEROCMP | PWM_CFG_CMP2GANG; - I2S_REG_WS_SPK(PWM_CFG) = PWM_CFG_ENALWAYS | PWM_CFG_ZEROCMP | PWM_CFG_CMP1GANG; - */ - - GPIO_REG(GPIO_OUTPUT_VAL) |= (1 << I2S_PIN_WS_MIC); - GPIO_REG(GPIO_INPUT_EN) &= ~(1 << I2S_PIN_WS_MIC); - GPIO_REG(GPIO_OUTPUT_EN) |= (1 << I2S_PIN_WS_MIC); - - GPIO_REG(GPIO_OUTPUT_VAL) |= (1 << I2S_PIN_CK_SR); - GPIO_REG(GPIO_IOF_SEL) |= I2S_PIN_PWM; - GPIO_REG(GPIO_IOF_EN) |= I2S_PIN_PWM; -} - -void eos_i2s_stop(void) { - I2S_REG_CK(PWM_CFG) = 0; - I2S_REG_WS_MIC(PWM_CFG) = 0; - I2S_REG_WS_SPK(PWM_CFG) = 0; - I2S_REG_CK(PWM_COUNT) = 0; - I2S_REG_WS_MIC(PWM_COUNT) = 0; - I2S_REG_WS_SPK(PWM_COUNT) = 0; - - _eos_i2s_drvr[I2S_MIC_BUF] = 0; - _eos_i2s_drvr[I2S_MIC_EVT] = 0; - _eos_i2s_drvr[I2S_MIC_WM] = 0; - - _eos_i2s_drvr[I2S_SPK_BUF] = 0; - _eos_i2s_drvr[I2S_SPK_EVT] = 0; - _eos_i2s_drvr[I2S_SPK_WM] = 0; - - eos_intr_disable(I2S_IRQ_WS_ID); - eos_intr_disable(I2S_IRQ_SD_ID); - - GPIO_REG(GPIO_OUTPUT_VAL) |= (1 << I2S_PIN_CK_SW); - GPIO_REG(GPIO_OUTPUT_VAL) &= ~(1 << I2S_PIN_CK_SR); - - GPIO_REG(GPIO_OUTPUT_XOR) &= ~(1 << I2S_PIN_WS_SPK); - GPIO_REG(GPIO_IOF_EN) &= ~I2S_PIN_PWM; - - eos_i2s_mic_set_wm(0); - eos_i2s_spk_set_wm(0); -} - -int eos_i2s_running(void) { - return !!(GPIO_REG(GPIO_IOF_EN) & (1 << I2S_PIN_CK)); -} - -void eos_i2s_set_fmt(unsigned char fmt) { - _eos_i2s_drvr[I2S_FMT] = fmt; -} - -void eos_i2s_set_mode(unsigned char mode) { - _eos_i2s_drvr[I2S_MODE] = mode; -} - -void eos_i2s_mic_init(uint8_t *mic_arr, uint16_t mic_arr_size) { - clear_csr(mstatus, MSTATUS_MIE); - _abuf_init(&i2s_mic_buf, mic_arr, mic_arr_size); - set_csr(mstatus, MSTATUS_MIE); -} - -void eos_i2s_mic_set_handler(eos_i2s_handler_t wm_handler) { - clear_csr(mstatus, MSTATUS_MIE); - i2s_mic_handler = wm_handler; - set_csr(mstatus, MSTATUS_MIE); -} - -void eos_i2s_mic_set_wm(uint16_t wm) { - clear_csr(mstatus, MSTATUS_MIE); - _eos_i2s_drvr[I2S_MIC_WM] = wm; - set_csr(mstatus, MSTATUS_MIE); - -} - -uint16_t eos_i2s_mic_len(void) { - clear_csr(mstatus, MSTATUS_MIE); - uint16_t ret = _abuf_len(&i2s_mic_buf); - set_csr(mstatus, MSTATUS_MIE); - return ret; -} - -uint16_t eos_i2s_mic_read(uint8_t *sample, uint16_t ssize) { - uint16_t i; - uint16_t _ssize = 0; - - clear_csr(mstatus, MSTATUS_MIE); - _ssize = MIN(ssize, _abuf_len(&i2s_mic_buf)); - set_csr(mstatus, MSTATUS_MIE); - - for (i=0; i<_ssize; i++) { - sample[i] = i2s_mic_buf.array[EOS_ABUF_IDX_MASK(i2s_mic_buf.idx_r + i, i2s_mic_buf.size)]; - } - - clear_csr(mstatus, MSTATUS_MIE); - i2s_mic_buf.idx_r += _ssize; - set_csr(mstatus, MSTATUS_MIE); - - return _ssize; -} - -int eos_i2s_mic_pop8(uint8_t *sample) { - int ret; - - clear_csr(mstatus, MSTATUS_MIE); - ret = _abuf_pop8(&i2s_mic_buf, sample); - set_csr(mstatus, MSTATUS_MIE); - - return ret; -} - -int eos_i2s_mic_pop16(uint16_t *sample) { - int ret; - - clear_csr(mstatus, MSTATUS_MIE); - ret = _abuf_pop16(&i2s_mic_buf, sample); - set_csr(mstatus, MSTATUS_MIE); - - return ret; -} - -int eos_i2s_mic_vol_get(void) { - return i2s_mic_volume; -} - -void eos_i2s_mic_vol_set(int vol) { - if ((vol < 0) || (vol > 8)) return; - - i2s_mic_volume = vol; - - clear_csr(mstatus, MSTATUS_MIE); - i2s_cmp_set(); - set_csr(mstatus, MSTATUS_MIE); -} - -void eos_i2s_spk_init(uint8_t *spk_arr, uint16_t spk_arr_size) { - clear_csr(mstatus, MSTATUS_MIE); - _abuf_init(&i2s_spk_buf, spk_arr, spk_arr_size); - set_csr(mstatus, MSTATUS_MIE); -} - -void eos_i2s_spk_set_handler(eos_i2s_handler_t wm_handler) { - clear_csr(mstatus, MSTATUS_MIE); - i2s_spk_handler = wm_handler; - set_csr(mstatus, MSTATUS_MIE); -} - -void eos_i2s_spk_set_wm(uint16_t wm) { - clear_csr(mstatus, MSTATUS_MIE); - _eos_i2s_drvr[I2S_SPK_WM] = wm; - set_csr(mstatus, MSTATUS_MIE); -} - -uint16_t eos_i2s_spk_len(void) { - clear_csr(mstatus, MSTATUS_MIE); - uint16_t ret = _abuf_len(&i2s_spk_buf); - set_csr(mstatus, MSTATUS_MIE); - return ret; -} - -uint16_t eos_i2s_spk_write(uint8_t *sample, uint16_t ssize) { - uint16_t i; - uint16_t _ssize = 0; - - clear_csr(mstatus, MSTATUS_MIE); - _ssize = MIN(ssize, i2s_spk_buf.size - _abuf_len(&i2s_spk_buf)); - set_csr(mstatus, MSTATUS_MIE); - - for (i=0; i<_ssize; i++) { - i2s_spk_buf.array[EOS_ABUF_IDX_MASK(i2s_spk_buf.idx_w + i, i2s_spk_buf.size)] = sample[i]; - } - - clear_csr(mstatus, MSTATUS_MIE); - i2s_spk_buf.idx_w += _ssize; - set_csr(mstatus, MSTATUS_MIE); - - return _ssize; -} - -int eos_i2s_spk_push8(uint8_t sample) { - int ret; - - clear_csr(mstatus, MSTATUS_MIE); - ret = _abuf_push8(&i2s_spk_buf, sample); - set_csr(mstatus, MSTATUS_MIE); - - return ret; -} - -int eos_i2s_spk_push16(uint16_t sample) { - int ret; - - clear_csr(mstatus, MSTATUS_MIE); - ret = _abuf_push16(&i2s_spk_buf, sample); - set_csr(mstatus, MSTATUS_MIE); - - return ret; -} - -int eos_i2s_spk_vol_get(void) { - return i2s_spk_volume; -} - -void eos_i2s_spk_vol_set(int vol) { - if ((vol < 0) || (vol > 16)) return; - - i2s_spk_volume = vol; - - clear_csr(mstatus, MSTATUS_MIE); - i2s_cmp_set(); - set_csr(mstatus, MSTATUS_MIE); -} -- cgit v1.2.3