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Fix PDMIn.c formatting

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This commit is contained in:
Scott Shawcroft 2022-06-01 10:46:46 -07:00
parent 7fc0aa5791
commit 6d3698848c
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GPG Key ID: 0DFD512649C052DA
1 changed files with 87 additions and 86 deletions
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103
ports/atmel-samd/common-hal/audiobusio/PDMIn.c
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@ -110,26 +110,26 @@ void common_hal_audiobusio_pdmin_construct(audiobusio_pdmin_obj_t *self,
} else if (clock_pin == &pin_PB11) { } else if (clock_pin == &pin_PB11) {
self->clock_unit = 1; self->clock_unit = 1;
#endif #endif
#endif #else
#ifdef SAM_D5X_E5X #ifdef SAM_D5X_E5X
if (clock_pin == &pin_PA10 || clock_pin == &pin_PB16) { if (clock_pin == &pin_PA10 || clock_pin == &pin_PB16) {
self->clock_unit = 0; self->clock_unit = 0;
} else if (clock_pin == &pin_PB12 } else if (clock_pin == &pin_PB12
#if defined(PIN_PB28) && !defined(IGNORE_PIN_PB28) #if defined(PIN_PB28) && !defined(IGNORE_PIN_PB28)
|| data_pin == &pin_PB28) { || data_pin == &pin_PB28
#else
) {
#endif #endif
) {
self->clock_unit = 1; self->clock_unit = 1;
#endif #endif
} else { #endif
} else {
raise_ValueError_invalid_pin_name(MP_QSTR_clock); raise_ValueError_invalid_pin_name(MP_QSTR_clock);
} }
self->data_pin = data_pin; // PA07, PA19 -> SD0, PA08, PB16 -> SD1 self->data_pin = data_pin; // PA07, PA19 -> SD0, PA08, PB16 -> SD1
#ifdef SAMD21 #ifdef SAMD21
if (false if (false
#if defined(PIN_PA07) && !defined(IGNORE_PIN_PA07) #if defined(PIN_PA07) && !defined(IGNORE_PIN_PA07)
|| data_pin == &pin_PA07 || data_pin == &pin_PA07
#endif #endif
@ -138,7 +138,7 @@ if (false
#endif #endif
) { ) {
self->serializer = 0; self->serializer = 0;
} else if (false } else if (false
#if defined(PIN_PA08) && !defined(IGNORE_PIN_PA08) #if defined(PIN_PA08) && !defined(IGNORE_PIN_PA08)
|| data_pin == &pin_PA08 || data_pin == &pin_PA08
#endif #endif
@ -147,26 +147,27 @@ if (false
#endif #endif
) { ) {
self->serializer = 1; self->serializer = 1;
#endif #else
#ifdef SAM_D5X_E5X #ifdef SAM_D5X_E5X
if (data_pin == &pin_PB10 || data_pin == &pin_PA22) { if (data_pin == &pin_PB10 || data_pin == &pin_PA22) {
self->serializer = 1; self->serializer = 1;
#endif #endif
}else { #endif
} else {
raise_ValueError_invalid_pin_name(MP_QSTR_data); raise_ValueError_invalid_pin_name(MP_QSTR_data);
} }
if (!(bit_depth == 16 || bit_depth == 8) || !mono || oversample != OVERSAMPLING) { if (!(bit_depth == 16 || bit_depth == 8) || !mono || oversample != OVERSAMPLING) {
mp_raise_NotImplementedError(translate("Only 8 or 16 bit mono with " MP_STRINGIFY(OVERSAMPLING) "x oversampling is supported.")); mp_raise_NotImplementedError(translate("Only 8 or 16 bit mono with " MP_STRINGIFY(OVERSAMPLING) "x oversampling is supported."));
} }
turn_on_i2s(); turn_on_i2s();
if (I2S->CTRLA.bit.ENABLE == 0) { if (I2S->CTRLA.bit.ENABLE == 0) {
I2S->CTRLA.bit.SWRST = 1; I2S->CTRLA.bit.SWRST = 1;
while (I2S->CTRLA.bit.SWRST == 1) { while (I2S->CTRLA.bit.SWRST == 1) {
} }
} else { } else {
#ifdef SAMD21 #ifdef SAMD21
if ((I2S->CTRLA.vec.SEREN & (1 << self->serializer)) != 0) { if ((I2S->CTRLA.vec.SEREN & (1 << self->serializer)) != 0) {
mp_raise_RuntimeError(translate("Serializer in use")); mp_raise_RuntimeError(translate("Serializer in use"));
@ -177,7 +178,7 @@ if (I2S->CTRLA.bit.ENABLE == 0) {
mp_raise_RuntimeError(translate("Serializer in use")); mp_raise_RuntimeError(translate("Serializer in use"));
} }
#endif #endif
} }
#ifdef SAM_D5X_E5X #ifdef SAM_D5X_E5X
#define GPIO_I2S_FUNCTION GPIO_PIN_FUNCTION_J #define GPIO_I2S_FUNCTION GPIO_PIN_FUNCTION_J
#endif #endif
@ -185,62 +186,62 @@ if (I2S->CTRLA.bit.ENABLE == 0) {
#define GPIO_I2S_FUNCTION GPIO_PIN_FUNCTION_G #define GPIO_I2S_FUNCTION GPIO_PIN_FUNCTION_G
#endif #endif
uint32_t clock_divisor = (uint32_t)roundf(48000000.0f / sample_rate / oversample); uint32_t clock_divisor = (uint32_t)roundf(48000000.0f / sample_rate / oversample);
float mic_clock_freq = 48000000.0f / clock_divisor; float mic_clock_freq = 48000000.0f / clock_divisor;
self->sample_rate = mic_clock_freq / oversample; self->sample_rate = mic_clock_freq / oversample;
if (mic_clock_freq < MIN_MIC_CLOCK || clock_divisor == 0) { if (mic_clock_freq < MIN_MIC_CLOCK || clock_divisor == 0) {
mp_raise_ValueError(translate("sampling rate out of range")); mp_raise_ValueError(translate("sampling rate out of range"));
} }
// Find a free GCLK to generate the MCLK signal. // Find a free GCLK to generate the MCLK signal.
uint8_t gclk = find_free_gclk(clock_divisor); uint8_t gclk = find_free_gclk(clock_divisor);
if (gclk > GCLK_GEN_NUM) { if (gclk > GCLK_GEN_NUM) {
mp_raise_RuntimeError(translate("Unable to find free GCLK")); mp_raise_RuntimeError(translate("Unable to find free GCLK"));
} }
self->gclk = gclk; self->gclk = gclk;
enable_clock_generator(self->gclk, CLOCK_48MHZ, clock_divisor); enable_clock_generator(self->gclk, CLOCK_48MHZ, clock_divisor);
connect_gclk_to_peripheral(self->gclk, I2S_GCLK_ID_0 + self->clock_unit); connect_gclk_to_peripheral(self->gclk, I2S_GCLK_ID_0 + self->clock_unit);
// Clock unit configuration // Clock unit configuration
uint32_t clkctrl = I2S_CLKCTRL_MCKSEL_GCLK | uint32_t clkctrl = I2S_CLKCTRL_MCKSEL_GCLK |
I2S_CLKCTRL_NBSLOTS(2) | I2S_CLKCTRL_NBSLOTS(2) |
I2S_CLKCTRL_FSWIDTH_SLOT | I2S_CLKCTRL_FSWIDTH_SLOT |
I2S_CLKCTRL_SLOTSIZE_16; I2S_CLKCTRL_SLOTSIZE_16;
// Serializer configuration // Serializer configuration
#ifdef SAMD21 #ifdef SAMD21
uint32_t serctrl = (self->clock_unit << I2S_SERCTRL_CLKSEL_Pos) | SERCTRL(SERMODE_PDM2) | SERCTRL(DATASIZE_32); uint32_t serctrl = (self->clock_unit << I2S_SERCTRL_CLKSEL_Pos) | SERCTRL(SERMODE_PDM2) | SERCTRL(DATASIZE_32);
#endif #endif
#ifdef SAM_D5X_E5X #ifdef SAM_D5X_E5X
uint32_t serctrl = (self->clock_unit << I2S_RXCTRL_CLKSEL_Pos) | SERCTRL(SERMODE_PDM2) | SERCTRL(DATASIZE_32); uint32_t serctrl = (self->clock_unit << I2S_RXCTRL_CLKSEL_Pos) | SERCTRL(SERMODE_PDM2) | SERCTRL(DATASIZE_32);
#endif #endif
// Configure the I2S peripheral // Configure the I2S peripheral
i2s_set_enable(false); i2s_set_enable(false);
I2S->CLKCTRL[self->clock_unit].reg = clkctrl; I2S->CLKCTRL[self->clock_unit].reg = clkctrl;
#ifdef SAMD21 #ifdef SAMD21
I2S->SERCTRL[self->serializer].reg = serctrl; I2S->SERCTRL[self->serializer].reg = serctrl;
#endif #endif
#ifdef SAM_D5X_E5X #ifdef SAM_D5X_E5X
I2S->RXCTRL.reg = serctrl; I2S->RXCTRL.reg = serctrl;
#endif #endif
i2s_set_enable(true); i2s_set_enable(true);
// Run the clock all the time. This eliminates startup delay for the microphone, // Run the clock all the time. This eliminates startup delay for the microphone,
// which can be 10-100ms. Turn serializer on as needed. // which can be 10-100ms. Turn serializer on as needed.
i2s_set_clock_unit_enable(self->clock_unit, true); i2s_set_clock_unit_enable(self->clock_unit, true);
claim_pin(clock_pin); claim_pin(clock_pin);
claim_pin(data_pin); claim_pin(data_pin);
gpio_set_pin_function(self->clock_pin->number, GPIO_I2S_FUNCTION); gpio_set_pin_function(self->clock_pin->number, GPIO_I2S_FUNCTION);
gpio_set_pin_function(self->data_pin->number, GPIO_I2S_FUNCTION); gpio_set_pin_function(self->data_pin->number, GPIO_I2S_FUNCTION);
self->bytes_per_sample = oversample >> 3; self->bytes_per_sample = oversample >> 3;
self->bit_depth = bit_depth; self->bit_depth = bit_depth;
} }
bool common_hal_audiobusio_pdmin_deinited(audiobusio_pdmin_obj_t *self) { bool common_hal_audiobusio_pdmin_deinited(audiobusio_pdmin_obj_t *self) {