diff options
Diffstat (limited to 'os/hal/src/dac.c')
| -rw-r--r-- | os/hal/src/dac.c | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/os/hal/src/dac.c b/os/hal/src/dac.c index b4a659791..a4cb5aa10 100644 --- a/os/hal/src/dac.c +++ b/os/hal/src/dac.c @@ -196,6 +196,60 @@ void dacStartConversionI(DACDriver *dacp, dac_lld_start_conversion(dacp); } +/** + * @brief Stops an ongoing conversion. + * @details This function stops the currently ongoing conversion and returns + * the driver in the @p DAC_READY state. If there was no conversion + * being processed then the function does nothing. + * + * @param[in] dacp pointer to the @p DACDriver object + * + * @api + */ +void dacStopConversion(DACDriver *dacp) { + + chDbgCheck(dacp != NULL, "dacStopConversion"); + + chSysLock(); + chDbgAssert((dacp->state == DAC_READY) || + (dacp->state == DAC_ACTIVE), + "dacStopConversion(), #1", "invalid state"); + if (dacp->state != DAC_READY) { + adc_lld_stop_conversion(dacp); + dacp->grpp = NULL; + dacp->state = DAC_READY; + _dac_reset_s(dacp); + } + chSysUnlock(); +} + +/** + * @brief Stops an ongoing conversion. + * @details This function stops the currently ongoing conversion and returns + * the driver in the @p DAC_READY state. If there was no conversion + * being processed then the function does nothing. + * + * @param[in] dacp pointer to the @p DACDriver object + * + * @iclass + */ +void dacStopConversionI(DACDriver *dacp) { + + chDbgCheckClassI(); + chDbgCheck(dacp != NULL, "dacStopConversionI"); + chDbgAssert((dacp->state == DAC_READY) || + (dacp->state == DAC_ACTIVE) || + (dacp->state == DAC_COMPLETE), + "dacStopConversionI(), #1", "invalid state"); + + if (dacp->state != DAC_READY) { + adc_lld_stop_conversion(dacp); + dacp->grpp = NULL; + dacp->state = DAC_READY; + _dac_reset_i(dacp); + } +} + #if DAC_USE_WAIT || defined(__DOXYGEN__) /** * @brief Performs a DAC conversion. |