/**
* @brief Deactivates the DAC peripheral.
*
* @param[in] dacp pointer to the @p DACDriver object
*
* @notapi
*/
void dac_lld_stop(DACDriver *dacp) {
/* If in ready state then disables the DAC clock.*/
if (dacp->state == DAC_READY) {
/* DMA disable.*/
dmaStreamRelease(dacp->dma);
#if STM32_DAC_USE_CHN1
if (&DACD1 == dacp) {
dacp->dac->CR &= ~STM32_DAC_CR_EN; /* DAC1 disable.*/
}
#endif
#if STM32_DAC_USE_CHN2
if (&DACD2 == dacp) {
dacp->dac->CR &= ~STM32_DAC_CR_EN << 16; /* DAC1 disable.*/
}
#endif
#if STM32_DAC_USE_CHN3
if (&DACD3 == dacp) {
dacp->dac->CR &= ~STM32_DAC_CR_EN; /* DAC2 disable.*/
rccDisableDAC2(FALSE); /* DAC Clock disable.*/
}
#endif
dacp->tim->CR1 &= ~TIM_CR1_CEN; /* Disable associated timer */
dacp->state = DAC_STOP;
if (!(DAC1->CR & (STM32_DAC_CR_EN | STM32_DAC_CR_EN << 16))) {
/* DAC Clock disable only if all channels are off.*/
rccDisableDAC1(FALSE);
}
}
}
/**
* @brief Deactivates the DAC peripheral.
*
* @param[in] dacp pointer to the @p DACDriver object
*
* @notapi
*/
void dac_lld_stop(DACDriver *dacp) {
/* If in ready state then disables the DAC clock.*/
if (dacp->state == DAC_READY) {
/* Disabling DAC.*/
dacp->params->dac->CR &= dacp->params->regmask;
#if STM32_DAC_USE_DAC1_CH1
if (&DACD1 == dacp) {
if ((dacp->params->dac->CR & DAC_CR_EN2) == 0U) {
rccDisableDAC1(false);
}
}
#endif
#if STM32_DAC_USE_DAC1_CH2
if (&DACD2 == dacp) {
if ((dacp->params->dac->CR & DAC_CR_EN1) == 0U) {
rccDisableDAC1(false);
}
}
#endif
#if STM32_DAC_USE_DAC2_CH1
if (&DACD3 == dacp) {
if ((dacp->params->dac->CR & DAC_CR_EN2) == 0U) {
rccDisableDAC2(false);
}
}
#endif
#if STM32_DAC_USE_DAC2_CH2
if (&DACD4 == dacp) {
if ((dacp->params->dac->CR & DAC_CR_EN1) == 0U) {
rccDisableDAC2(false);
}
}
#endif
}
}