diff options
Diffstat (limited to 'fw/fe310/eos/i2s.c')
| -rw-r--r-- | fw/fe310/eos/i2s.c | 51 |
1 files changed, 17 insertions, 34 deletions
diff --git a/fw/fe310/eos/i2s.c b/fw/fe310/eos/i2s.c index f4d6b99..695967a 100644 --- a/fw/fe310/eos/i2s.c +++ b/fw/fe310/eos/i2s.c @@ -18,6 +18,8 @@ #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)) @@ -148,6 +150,11 @@ void eos_i2s_init(uint8_t wakeup_cause) { GPIO_REG(GPIO_PULLUP_EN) &= ~(1 << I2S_PIN_CK_SW); GPIO_REG(GPIO_OUTPUT_XOR) &= ~(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); + GPIO_REG(GPIO_PULLUP_EN) &= ~(1 << I2S_PIN_CK_SR); + GPIO_REG(GPIO_OUTPUT_XOR) &= ~(1 << I2S_PIN_CK_SR); + GPIO_REG(GPIO_INPUT_EN) &= ~(1 << I2S_PIN_WS_MIC); GPIO_REG(GPIO_OUTPUT_EN) |= (1 << I2S_PIN_WS_MIC); GPIO_REG(GPIO_PULLUP_EN) &= ~(1 << I2S_PIN_WS_MIC); @@ -158,12 +165,7 @@ void eos_i2s_init(uint8_t wakeup_cause) { GPIO_REG(GPIO_PULLUP_EN) &= ~(1 << I2S_PIN_WS_SPK); GPIO_REG(GPIO_OUTPUT_XOR) &= ~(1 << I2S_PIN_WS_SPK); - GPIO_REG(GPIO_INPUT_EN) &= ~(1 << I2S_PIN_CK_SR); - GPIO_REG(GPIO_OUTPUT_EN) |= (1 << I2S_PIN_CK_SR); - GPIO_REG(GPIO_PULLUP_EN) &= ~(1 << I2S_PIN_CK_SR); - GPIO_REG(GPIO_OUTPUT_XOR) &= ~(1 << I2S_PIN_CK_SR); - - GPIO_REG(GPIO_INPUT_EN) &= ~(1 << I2S_PIN_SD_IN); + GPIO_REG(GPIO_INPUT_EN) |= (1 << I2S_PIN_SD_IN); GPIO_REG(GPIO_OUTPUT_EN) &= ~(1 << I2S_PIN_SD_IN); GPIO_REG(GPIO_PULLUP_EN) &= ~(1 << I2S_PIN_SD_IN); GPIO_REG(GPIO_OUTPUT_XOR) &= ~(1 << I2S_PIN_SD_IN); @@ -173,6 +175,9 @@ void eos_i2s_init(uint8_t wakeup_cause) { GPIO_REG(GPIO_PULLUP_EN) &= ~(1 << I2S_PIN_SD_OUT); GPIO_REG(GPIO_OUTPUT_XOR) &= ~(1 << I2S_PIN_SD_OUT); + GPIO_REG(GPIO_IOF_EN) &= ~I2S_PIN_PWM; + GPIO_REG(GPIO_IOF_SEL) |= I2S_PIN_PWM; + GPIO_REG(GPIO_OUTPUT_VAL) |= (1 << I2S_PIN_CK_SW); GPIO_REG(GPIO_OUTPUT_VAL) &= ~((1 << I2S_PIN_CK) | (1 << I2S_PIN_CK_SR) | (1 << I2S_PIN_WS_MIC) | (1 << I2S_PIN_WS_SPK)); } @@ -212,20 +217,8 @@ void eos_i2s_start(uint32_t sample_rate, unsigned char fmt) { 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); GPIO_REG(GPIO_OUTPUT_VAL) |= (1 << I2S_PIN_CK_SR); - - GPIO_REG(GPIO_IOF_SEL) |= (1 << I2S_PIN_CK); - GPIO_REG(GPIO_IOF_EN) |= (1 << I2S_PIN_CK); - - GPIO_REG(GPIO_IOF_SEL) |= (1 << I2S_PIN_CK_SW); - GPIO_REG(GPIO_IOF_EN) |= (1 << I2S_PIN_CK_SW); - - GPIO_REG(GPIO_IOF_SEL) |= (1 << I2S_PIN_WS_MIC); - GPIO_REG(GPIO_IOF_EN) |= (1 << I2S_PIN_WS_MIC); - - GPIO_REG(GPIO_IOF_SEL) |= (1 << I2S_PIN_WS_SPK); - GPIO_REG(GPIO_IOF_EN) |= (1 << I2S_PIN_WS_SPK); + GPIO_REG(GPIO_IOF_EN) |= I2S_PIN_PWM; } void eos_i2s_stop(void) { @@ -243,22 +236,12 @@ void eos_i2s_stop(void) { eos_intr_disable(I2S_IRQ_WS_ID); eos_intr_disable(I2S_IRQ_SD_ID); - GPIO_REG(GPIO_IOF_EN) &= ~(1 << I2S_PIN_CK); - GPIO_REG(GPIO_IOF_SEL) &= ~(1 << I2S_PIN_CK); - - GPIO_REG(GPIO_IOF_EN) &= ~(1 << I2S_PIN_CK_SW); - GPIO_REG(GPIO_IOF_SEL) &= ~(1 << I2S_PIN_CK_SW); - - GPIO_REG(GPIO_IOF_EN) &= ~(1 << I2S_PIN_WS_MIC); - GPIO_REG(GPIO_IOF_SEL) &= ~(1 << I2S_PIN_WS_MIC); - - GPIO_REG(GPIO_IOF_EN) &= ~(1 << I2S_PIN_WS_SPK); - GPIO_REG(GPIO_IOF_SEL) &= ~(1 << I2S_PIN_WS_SPK); - - GPIO_REG(GPIO_INPUT_EN) &= ~(1 << I2S_PIN_SD_IN); + GPIO_REG(GPIO_OUTPUT_VAL) &= ~(1 << I2S_PIN_CK_SR); + GPIO_REG(GPIO_IOF_EN) &= ~I2S_PIN_PWM; +} - GPIO_REG(GPIO_OUTPUT_VAL) |= (1 << I2S_PIN_CK_SW); - GPIO_REG(GPIO_OUTPUT_VAL) &= ~((1 << I2S_PIN_CK) | (1 << I2S_PIN_CK_SR) | (1 << I2S_PIN_WS_MIC) | (1 << I2S_PIN_WS_SPK)); +int eos_i2s_running(void) { + return !!(GPIO_REG(GPIO_IOF_EN) & I2S_PIN_PWM); } void eos_i2s_mic_init(uint8_t *mic_arr, uint16_t mic_arr_size) { |