diff options
Diffstat (limited to 'fw/fe310/eos/i2s.c')
| -rw-r--r-- | fw/fe310/eos/i2s.c | 65 |
1 files changed, 33 insertions, 32 deletions
diff --git a/fw/fe310/eos/i2s.c b/fw/fe310/eos/i2s.c index c8216ff..b4fd277 100644 --- a/fw/fe310/eos/i2s.c +++ b/fw/fe310/eos/i2s.c @@ -9,13 +9,14 @@ #include "interrupt.h" #include "event.h" +#include "board.h" + #include "i2s.h" -#include "i2s_def.h" -#include "irq_def.h" +#include "i2s_priv.h" -#define I2S_PWM_REG_CK PWM0_REG -#define I2S_PWM_REG_WS_MIC PWM1_REG -#define I2S_PWM_REG_WS_SPK PWM2_REG +#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 MIN(X, Y) (((X) < (Y)) ? (X) : (Y)) #define MAX(X, Y) (((X) > (Y)) ? (X) : (Y)) @@ -112,22 +113,22 @@ static void i2s_handle_evt(unsigned char type, unsigned char *buffer, uint16_t l } static void _mic_vol_set(uint8_t vol) { - I2S_PWM_REG_WS_MIC(PWM_CMP2) = i2s_clk_period * (vol + 1); - I2S_PWM_REG_WS_MIC(PWM_CMP3) = I2S_PWM_REG_WS_MIC(PWM_CMP2) + i2s_clk_period * 16; + I2S_REG_WS_MIC(PWM_CMP2) = i2s_clk_period * (vol + 1); + I2S_REG_WS_MIC(PWM_CMP3) = I2S_REG_WS_MIC(PWM_CMP2) + i2s_clk_period * 16; } static void _spk_vol_set(uint8_t vol) { int spk_cmp = vol + i2s_mic_volume - 16; if (spk_cmp <= 0) { - I2S_PWM_REG_WS_SPK(PWM_CMP1) = i2s_clk_period * (32 + spk_cmp); - I2S_PWM_REG_WS_SPK(PWM_CMP2) = i2s_clk_period * (64 + spk_cmp); - I2S_PWM_REG_WS_SPK(PWM_CMP3) = i2s_clk_period * 33; + I2S_REG_WS_SPK(PWM_CMP1) = i2s_clk_period * (32 + spk_cmp); + I2S_REG_WS_SPK(PWM_CMP2) = i2s_clk_period * (64 + spk_cmp); + I2S_REG_WS_SPK(PWM_CMP3) = i2s_clk_period * 33; GPIO_REG(GPIO_OUTPUT_XOR) &= ~(1 << I2S_PIN_WS_SPK); } else { - I2S_PWM_REG_WS_SPK(PWM_CMP1) = i2s_clk_period * spk_cmp; - I2S_PWM_REG_WS_SPK(PWM_CMP2) = i2s_clk_period * (32 + spk_cmp); - I2S_PWM_REG_WS_SPK(PWM_CMP3) = i2s_clk_period * (33 + spk_cmp); + I2S_REG_WS_SPK(PWM_CMP1) = i2s_clk_period * spk_cmp; + I2S_REG_WS_SPK(PWM_CMP2) = i2s_clk_period * (32 + spk_cmp); + I2S_REG_WS_SPK(PWM_CMP3) = i2s_clk_period * (33 + spk_cmp); GPIO_REG(GPIO_OUTPUT_XOR) |= (1 << I2S_PIN_WS_SPK); } } @@ -179,21 +180,21 @@ void eos_i2s_init(void) { void eos_i2s_start(uint32_t sample_rate, unsigned char fmt) { i2s_clk_period = ((PRCI_get_cpu_freq() / (sample_rate * 64)) & ~I2S_PWM_SCALE_CK_MASK) + 1; - I2S_PWM_REG_CK(PWM_CMP0) = i2s_clk_period >> I2S_PWM_SCALE_CK; - I2S_PWM_REG_CK(PWM_CMP1) = I2S_PWM_REG_CK(PWM_CMP0) / 2; - I2S_PWM_REG_CK(PWM_CMP2) = 0; - I2S_PWM_REG_CK(PWM_CMP3) = 0; + 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_PWM_REG_WS_MIC(PWM_CMP0) = i2s_clk_period * 64 - 1; - I2S_PWM_REG_WS_MIC(PWM_CMP1) = i2s_clk_period * 32; + I2S_REG_WS_MIC(PWM_CMP0) = i2s_clk_period * 64 - 1; + I2S_REG_WS_MIC(PWM_CMP1) = i2s_clk_period * 32; _mic_vol_set(i2s_mic_volume); - I2S_PWM_REG_WS_SPK(PWM_CMP0) = i2s_clk_period * 64 - 1; + I2S_REG_WS_SPK(PWM_CMP0) = i2s_clk_period * 64 - 1; _spk_vol_set(i2s_spk_volume); - I2S_PWM_REG_CK(PWM_COUNT) = 0; - I2S_PWM_REG_WS_MIC(PWM_COUNT) = 0; - I2S_PWM_REG_WS_SPK(PWM_COUNT) = i2s_clk_period / 2; + I2S_REG_CK(PWM_COUNT) = 0; + I2S_REG_WS_MIC(PWM_COUNT) = 0; + I2S_REG_WS_SPK(PWM_COUNT) = i2s_clk_period / 2; _eos_i2s_fmt = fmt; _eos_i2s_mic_evt_enable = 1; @@ -206,9 +207,9 @@ void eos_i2s_start(uint32_t sample_rate, unsigned char fmt) { _eos_i2s_start_pwm(); /* - I2S_PWM_REG_CK(PWM_CFG) = PWM_CFG_ENALWAYS | PWM_CFG_ZEROCMP | I2S_PWM_SCALE_CK; - I2S_PWM_REG_WS_MIC(PWM_CFG) = PWM_CFG_ENALWAYS | PWM_CFG_ZEROCMP | PWM_CFG_CMP2GANG; - I2S_PWM_REG_WS_SPK(PWM_CFG) = PWM_CFG_ENALWAYS | PWM_CFG_ZEROCMP | PWM_CFG_CMP1GANG; + 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_INPUT_EN) |= (1 << I2S_PIN_SD_IN); @@ -228,12 +229,12 @@ void eos_i2s_start(uint32_t sample_rate, unsigned char fmt) { } void eos_i2s_stop(void) { - I2S_PWM_REG_CK(PWM_CFG) = 0; - I2S_PWM_REG_WS_MIC(PWM_CFG) = 0; - I2S_PWM_REG_WS_SPK(PWM_CFG) = 0; - I2S_PWM_REG_CK(PWM_COUNT) = 0; - I2S_PWM_REG_WS_MIC(PWM_COUNT) = 0; - I2S_PWM_REG_WS_SPK(PWM_COUNT) = 0; + 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_mic_evt_enable = 0; _eos_i2s_spk_evt_enable = 0; |