C++ (Cpp) adc_disable_watchdog_no_lockの例

コード例 #1

ファイル: adc-stm32f0.c プロジェクト: Basavaraja-MS/ec_local

int adc_read_channel(enum adc_channel ch)
{
	const struct adc_t *adc = adc_channels + ch;
	int value;
	int restore_watchdog = 0;

	mutex_lock(&adc_lock);
	if (adc_watchdog_enabled()) {
		restore_watchdog = 1;
		adc_disable_watchdog_no_lock();
	}

	adc_configure(adc->channel);

	/* Clear flags */
	STM32_ADC_ISR = 0xe;

	/* Start conversion */
	STM32_ADC_CR |= 1 << 2; /* ADSTART */

	/* Wait for end of conversion */
	while (!(STM32_ADC_ISR & (1 << 2)))
		;
	/* read converted value */
	value = STM32_ADC_DR;

	if (restore_watchdog)
		adc_enable_watchdog_no_lock();
	mutex_unlock(&adc_lock);

	return value * adc->factor_mul / adc->factor_div + adc->shift;
}

コード例 #2

ファイル: adc-stm32f0.c プロジェクト: Basavaraja-MS/ec_local

int adc_disable_watchdog(void)
{
	int ret;

	mutex_lock(&adc_lock);
	ret = adc_disable_watchdog_no_lock();
	mutex_unlock(&adc_lock);

	return ret;
}

コード例 #3

ファイル: adc-stm32f3.c プロジェクト: coreboot/chrome-ec

int adc_disable_watchdog(void)
{
	int ret;

	if (!adc_powered())
		return EC_ERROR_UNKNOWN;

	mutex_lock(&adc_lock);
	ret = adc_disable_watchdog_no_lock();
	mutex_unlock(&adc_lock);
	return ret;
}

コード例 #4

ファイル: adc-stm32f0.c プロジェクト: Basavaraja-MS/ec_local

int adc_read_all_channels(int *data)
{
	int i;
	uint32_t channels = 0;
	uint32_t raw_data[ADC_CH_COUNT];
	const struct adc_t *adc;
	int restore_watchdog = 0;
	int ret = EC_SUCCESS;

	mutex_lock(&adc_lock);

	if (adc_watchdog_enabled()) {
		restore_watchdog = 1;
		adc_disable_watchdog_no_lock();
	}

	/* Select all used channels */
	for (i = 0; i < ADC_CH_COUNT; ++i)
		channels |= 1 << adc_channels[i].channel;
	STM32_ADC_CHSELR = channels;

	/* Enable DMA */
	STM32_ADC_CFGR1 |= 0x1;

	dma_clear_isr(STM32_DMAC_ADC);
	dma_start_rx(&dma_adc_option, ADC_CH_COUNT, raw_data);

	/* Clear flags */
	STM32_ADC_ISR = 0xe;

	STM32_ADC_CR |= 1 << 2; /* ADSTART */

	if (dma_wait(STM32_DMAC_ADC)) {
		ret = EC_ERROR_UNKNOWN;
		goto fail; /* goto fail; goto fail; */
	}

	for (i = 0; i < ADC_CH_COUNT; ++i) {
		adc = adc_channels + i;
		data[i] = (raw_data[i] & 0xffff) *
			   adc->factor_mul / adc->factor_div + adc->shift;
	}

fail:
	if (restore_watchdog)
		adc_enable_watchdog_no_lock();
	mutex_unlock(&adc_lock);
	return ret;
}

コード例 #5

ファイル: adc-stm32f.c プロジェクト: thehobn/ec

int adc_read_all_channels(int *data)
{
	int i;
	int16_t raw_data[ADC_CH_COUNT];
	const struct adc_t *adc;
	int restore_watchdog = 0;
	int ret = EC_SUCCESS;

	if (!adc_powered())
		return EC_ERROR_UNKNOWN;

	mutex_lock(&adc_lock);

	if (adc_watchdog_enabled()) {
		restore_watchdog = 1;
		adc_disable_watchdog_no_lock();
	}

	adc_configure_all();

	dma_clear_isr(STM32_DMAC_ADC);
	dma_start_rx(&dma_adc_option, ADC_CH_COUNT, raw_data);

	/* Start conversion */
	STM32_ADC_CR2 |= (1 << 0); /* ADON */

	if (dma_wait(STM32_DMAC_ADC)) {
		ret = EC_ERROR_UNKNOWN;
		goto exit_all_channels;
	}

	for (i = 0; i < ADC_CH_COUNT; ++i) {
		adc = adc_channels + i;
		data[i] = raw_data[i] * adc->factor_mul / adc->factor_div +
			  adc->shift;
	}

exit_all_channels:
	dma_disable(STM32_DMAC_ADC);

	if (restore_watchdog)
		adc_enable_watchdog_no_lock();

	mutex_unlock(&adc_lock);
	return ret;
}

コード例 #6

ファイル: adc-stm32f0.c プロジェクト: Basavaraja-MS/ec_local

int adc_set_watchdog_delay(int delay_ms)
{
	int resume_watchdog = 0;

	mutex_lock(&adc_lock);
	if (adc_watchdog_enabled()) {
		resume_watchdog = 1;
		adc_disable_watchdog_no_lock();
	}

	watchdog_delay_ms = delay_ms;

	if (resume_watchdog)
		adc_enable_watchdog_no_lock();
	mutex_unlock(&adc_lock);

	return EC_SUCCESS;
}

コード例 #7

ファイル: adc-stm32f3.c プロジェクト: coreboot/chrome-ec

int adc_read_channel(enum adc_channel ch)
{
	const struct adc_t *adc = adc_channels + ch;
	int value;
	int restore_watchdog = 0;
	timestamp_t deadline;

	if (!adc_powered())
		return EC_ERROR_UNKNOWN;

	mutex_lock(&adc_lock);

	if (adc_watchdog_enabled()) {
		restore_watchdog = 1;
		adc_disable_watchdog_no_lock();
	}

	adc_configure(adc->channel);

	/* Clear EOC bit */
	STM32_ADC_SR &= ~(1 << 1);

	/* Start conversion */
	STM32_ADC_CR2 |= (1 << 0); /* ADON */

	/* Wait for EOC bit set */
	deadline.val = get_time().val + ADC_SINGLE_READ_TIMEOUT;
	value = ADC_READ_ERROR;
	do {
		if (adc_conversion_ended()) {
			value = STM32_ADC_DR & ADC_READ_MAX;
			break;
		}
	} while (!timestamp_expired(deadline, NULL));

	if (restore_watchdog)
		adc_enable_watchdog_no_lock();

	mutex_unlock(&adc_lock);
	return (value == ADC_READ_ERROR) ? ADC_READ_ERROR :
	       value * adc->factor_mul / adc->factor_div + adc->shift;
}