--- /dev/null
+/**
+ ******************************************************************************
+ * @file stm32l0xx_hal_dac_ex.c
+ * @author MCD Application Team
+ * @version V1.2.0
+ * @date 06-February-2015
+ * @brief Extended DAC HAL module driver.
+ * This file provides firmware functions to manage the following
+ * functionalities of DAC extension peripheral:
+ * + Extended features functions
+ *
+ *
+ @verbatim
+ ==============================================================================
+ ##### How to use this driver #####
+ ==============================================================================
+ [..]
+ (+) When Dual mode is enabled (i.e DAC Channel1 and Channel2 are used simultaneously) :
+ Use HAL_DACEx_DualGetValue() to get digital data to be converted and use
+ HAL_DACEx_DualSetValue() to set digital value to converted simultaneously in Channel 1 and Channel 2.
+ (+) Use HAL_DACEx_TriangleWaveGenerate() to generate Triangle signal.
+ (+) Use HAL_DACEx_NoiseWaveGenerate() to generate Noise signal.
+
+ @endverbatim
+ ******************************************************************************
+ * @attention
+ *
+ * <h2><center>© COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. Neither the name of STMicroelectronics nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ ******************************************************************************
+ */
+
+
+#if !defined (STM32L031xx) && !defined (STM32L041xx) && !defined (STM32L051xx) && !defined (STM32L061xx) && !defined (STM32L071xx) && !defined (STM32L081xx)
+/* Includes ------------------------------------------------------------------*/
+#include "stm32l0xx_hal.h"
+
+#ifdef HAL_DAC_MODULE_ENABLED
+/** @addtogroup STM32L0xx_HAL_Driver
+ * @{
+ */
+
+/** @defgroup DACEx DACEx
+ * @brief DAC driver modules
+ * @{
+ */
+
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+/* Private macro -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+/* Private function prototypes -----------------------------------------------*/
+/* Private functions ---------------------------------------------------------*/
+/** @addtogroup DACEx_Private_Functions
+ * @{
+ */
+#if defined (STM32L072xx) || defined (STM32L073xx) || defined (STM32L082xx) || defined (STM32L083xx)
+static void DAC_DMAConvCpltCh2(DMA_HandleTypeDef *hdma);
+static void DAC_DMAErrorCh2(DMA_HandleTypeDef *hdma);
+static void DAC_DMAHalfConvCpltCh2(DMA_HandleTypeDef *hdma);
+#endif
+static void DAC_DMAConvCpltCh1(DMA_HandleTypeDef *hdma);
+static void DAC_DMAErrorCh1(DMA_HandleTypeDef *hdma);
+static void DAC_DMAHalfConvCpltCh1(DMA_HandleTypeDef *hdma);
+
+/**
+ * @}
+ */
+
+/** @defgroup DACEx_Exported_Functions DACEx Exported Functions
+ * @{
+ */
+
+/** @defgroup DACEx_Exported_Functions_Group1 Extended features functions
+ * @brief Extended features functions
+ *
+
+ * @{
+ */
+
+#if defined (STM32L072xx) || defined (STM32L073xx) || defined (STM32L082xx) || defined (STM32L083xx)
+/**
+ * @brief Returns the last data output value of the selected DAC channel.
+ * @param hdac: pointer to a DAC_HandleTypeDef structure that contains
+ * the configuration information for the specified DAC.
+ * @retval The selected DAC channel data output value.
+ */
+uint32_t HAL_DACEx_DualGetValue(DAC_HandleTypeDef* hdac)
+{
+ uint32_t tmp = 0;
+
+ tmp |= hdac->Instance->DOR1;
+
+ tmp |= hdac->Instance->DOR2 << 16;
+
+ /* Returns the DAC channel data output register value */
+ return tmp;
+}
+#endif
+
+/**
+ * @brief Enables or disables the selected DAC channel wave generation.
+ * @param hdac: pointer to a DAC_HandleTypeDef structure that contains
+ * the configuration information for the specified DAC.
+ * @param Channel: The selected DAC channel.
+ * This parameter can be one of the following values:
+ * @arg DAC_CHANNEL_1: DAC Channel1 selected
+ * @arg DAC_CHANNEL_2: DAC Channel2 selected (STM32L07x/STM32L08x only)
+ * @param Amplitude: Select max triangle amplitude.
+ * This parameter can be one of the following values:
+ * @arg DAC_TRIANGLEAMPLITUDE_1: Select max triangle amplitude of 1
+ * @arg DAC_TRIANGLEAMPLITUDE_3: Select max triangle amplitude of 3
+ * @arg DAC_TRIANGLEAMPLITUDE_7: Select max triangle amplitude of 7
+ * @arg DAC_TRIANGLEAMPLITUDE_15: Select max triangle amplitude of 15
+ * @arg DAC_TRIANGLEAMPLITUDE_31: Select max triangle amplitude of 31
+ * @arg DAC_TRIANGLEAMPLITUDE_63: Select max triangle amplitude of 63
+ * @arg DAC_TRIANGLEAMPLITUDE_127: Select max triangle amplitude of 127
+ * @arg DAC_TRIANGLEAMPLITUDE_255: Select max triangle amplitude of 255
+ * @arg DAC_TRIANGLEAMPLITUDE_511: Select max triangle amplitude of 511
+ * @arg DAC_TRIANGLEAMPLITUDE_1023: Select max triangle amplitude of 1023
+ * @arg DAC_TRIANGLEAMPLITUDE_2047: Select max triangle amplitude of 2047
+ * @arg DAC_TRIANGLEAMPLITUDE_4095: Select max triangle amplitude of 4095
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_DACEx_TriangleWaveGenerate(DAC_HandleTypeDef* hdac, uint32_t Channel, uint32_t Amplitude)
+{
+ /* Check the parameters */
+ assert_param(IS_DAC_CHANNEL(Channel));
+ assert_param(IS_DAC_LFSR_UNMASK_TRIANGLE_AMPLITUDE(Amplitude));
+
+ /* Process locked */
+ __HAL_LOCK(hdac);
+
+ /* Change DAC state */
+ hdac->State = HAL_DAC_STATE_BUSY;
+
+ /* Enable the triangle wave generation for the selected DAC channel */
+ MODIFY_REG(hdac->Instance->CR, ((DAC_CR_WAVE1)|(DAC_CR_MAMP1))<<Channel, (DAC_CR_WAVE1_1 | Amplitude) << Channel);
+
+
+ /* Change DAC state */
+ hdac->State = HAL_DAC_STATE_READY;
+
+ /* Process unlocked */
+ __HAL_UNLOCK(hdac);
+
+ /* Return function status */
+ return HAL_OK;
+}
+
+/**
+ * @brief Enables or disables the selected DAC channel wave generation.
+ * @param hdac: pointer to a DAC_HandleTypeDef structure that contains
+ * the configuration information for the specified DAC.
+ * @param Channel: The selected DAC channel.
+ * This parameter can be one of the following values:
+ * @arg DAC_CHANNEL_1: DAC Channel1 selected
+ * @arg DAC_CHANNEL_2: DAC Channel2 selected (STM32L07x/STM32L08x only)
+ * @param Amplitude: Unmask DAC channel LFSR for noise wave generation.
+ * This parameter can be one of the following values:
+ * @arg DAC_LFSRUNMASK_BIT0: Unmask DAC channel LFSR bit0 for noise wave generation
+ * @arg DAC_LFSRUNMASK_BITS1_0: Unmask DAC channel LFSR bit[1:0] for noise wave generation
+ * @arg DAC_LFSRUNMASK_BITS2_0: Unmask DAC channel LFSR bit[2:0] for noise wave generation
+ * @arg DAC_LFSRUNMASK_BITS3_0: Unmask DAC channel LFSR bit[3:0] for noise wave generation
+ * @arg DAC_LFSRUNMASK_BITS4_0: Unmask DAC channel LFSR bit[4:0] for noise wave generation
+ * @arg DAC_LFSRUNMASK_BITS5_0: Unmask DAC channel LFSR bit[5:0] for noise wave generation
+ * @arg DAC_LFSRUNMASK_BITS6_0: Unmask DAC channel LFSR bit[6:0] for noise wave generation
+ * @arg DAC_LFSRUNMASK_BITS7_0: Unmask DAC channel LFSR bit[7:0] for noise wave generation
+ * @arg DAC_LFSRUNMASK_BITS8_0: Unmask DAC channel LFSR bit[8:0] for noise wave generation
+ * @arg DAC_LFSRUNMASK_BITS9_0: Unmask DAC channel LFSR bit[9:0] for noise wave generation
+ * @arg DAC_LFSRUNMASK_BITS10_0: Unmask DAC channel LFSR bit[10:0] for noise wave generation
+ * @arg DAC_LFSRUNMASK_BITS11_0: Unmask DAC channel LFSR bit[11:0] for noise wave generation
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_DACEx_NoiseWaveGenerate(DAC_HandleTypeDef* hdac, uint32_t Channel, uint32_t Amplitude)
+{
+ /* Check the parameters */
+ assert_param(IS_DAC_CHANNEL(Channel));
+ assert_param(IS_DAC_LFSR_UNMASK_TRIANGLE_AMPLITUDE(Amplitude));
+
+ /* Process locked */
+ __HAL_LOCK(hdac);
+
+ /* Change DAC state */
+ hdac->State = HAL_DAC_STATE_BUSY;
+
+/* Enable the noise wave generation for the selected DAC channel */
+ MODIFY_REG(hdac->Instance->CR, ((DAC_CR_WAVE1)|(DAC_CR_MAMP1))<<Channel, (DAC_CR_WAVE1_0 | Amplitude) << Channel);
+
+ /* Change DAC state */
+ hdac->State = HAL_DAC_STATE_READY;
+
+ /* Process unlocked */
+ __HAL_UNLOCK(hdac);
+
+ /* Return function status */
+ return HAL_OK;
+}
+
+#if defined (STM32L072xx) || defined (STM32L073xx) || defined (STM32L082xx) || defined (STM32L083xx)
+/**
+ * @brief Set the specified data holding register value for dual DAC channel.
+ * @param hdac: pointer to a DAC_HandleTypeDef structure that contains
+ * the configuration information for the specified DAC.
+ * @param Alignment: Specifies the data alignment for dual channel DAC.
+ * This parameter can be one of the following values:
+ * DAC_ALIGN_8B_R: 8bit right data alignment selected
+ * DAC_ALIGN_12B_L: 12bit left data alignment selected
+ * DAC_ALIGN_12B_R: 12bit right data alignment selected
+ * @param Data1: Data for DAC Channel2 to be loaded in the selected data holding register.
+ * @param Data2: Data for DAC Channel1 to be loaded in the selected data holding register.
+ * @note In dual mode, a unique register access is required to write in both
+ * DAC channels at the same time.
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_DACEx_DualSetValue(DAC_HandleTypeDef* hdac, uint32_t Alignment, uint32_t Data1, uint32_t Data2)
+{
+ uint32_t data = 0, tmp = 0;
+
+ /* Check the parameters */
+ assert_param(IS_DAC_ALIGN(Alignment));
+ assert_param(IS_DAC_DATA(Data1));
+ assert_param(IS_DAC_DATA(Data2));
+
+ /* Calculate and set dual DAC data holding register value */
+ if (Alignment == DAC_ALIGN_8B_R)
+ {
+ data = ((uint32_t)Data2 << 8) | Data1;
+ }
+ else
+ {
+ data = ((uint32_t)Data2 << 16) | Data1;
+ }
+
+ tmp = (uint32_t)hdac->Instance;
+ tmp += __DAC_DHR12RD_ALIGNEMENT(Alignment);
+
+ /* Set the dual DAC selected data holding register */
+ *(__IO uint32_t *)tmp = data;
+
+ /* Return function status */
+ return HAL_OK;
+}
+
+
+/**
+ * @brief Conversion complete callback in non blocking mode for Channel2
+ * @param hdac: pointer to a DAC_HandleTypeDef structure that contains
+ * the configuration information for the specified DAC.
+ * @retval None
+ */
+__weak void HAL_DACEx_ConvCpltCallbackCh2(DAC_HandleTypeDef* hdac)
+{
+ /* NOTE : This function Should not be modified, when the callback is needed,
+ the HAL_DACEx_ConvCpltCallbackCh2 could be implemented in the user file
+ */
+}
+
+/**
+ * @brief Conversion half DMA transfer callback in non blocking mode for Channel2
+ * @param hdac: pointer to a DAC_HandleTypeDef structure that contains
+ * the configuration information for the specified DAC.
+ * @retval None
+ */
+__weak void HAL_DACEx_ConvHalfCpltCallbackCh2(DAC_HandleTypeDef* hdac)
+{
+ /* NOTE : This function Should not be modified, when the callback is needed,
+ the HAL_DACEx_ConvHalfCpltCallbackCh2 could be implemented in the user file
+ */
+}
+
+/**
+ * @brief Error DAC callback for Channel2.
+ * @param hdac: pointer to a DAC_HandleTypeDef structure that contains
+ * the configuration information for the specified DAC.
+ * @retval None
+ */
+__weak void HAL_DACEx_ErrorCallbackCh2(DAC_HandleTypeDef *hdac)
+{
+ /* NOTE : This function Should not be modified, when the callback is needed,
+ the HAL_DACEx_ErrorCallbackCh2 could be implemented in the user file
+ */
+}
+
+/**
+ * @brief DMA underrun DAC callback for channel2.
+ * @param hdac: pointer to a DAC_HandleTypeDef structure that contains
+ * the configuration information for the specified DAC.
+ * @retval None
+ */
+__weak void HAL_DACEx_DMAUnderrunCallbackCh2(DAC_HandleTypeDef *hdac)
+{
+ /* NOTE : This function Should not be modified, when the callback is needed,
+ the HAL_DAC_DMAUnderrunCallbackCh2 could be implemented in the user file
+ */
+}
+
+/**
+ * @brief Enables DAC and starts conversion of channel.
+ * @param hdac: pointer to a DAC_HandleTypeDef structure that contains
+ * the configuration information for the specified DAC.
+ * @param Channel: The selected DAC channel.
+ * This parameter can be one of the following values:
+ * @arg DAC_CHANNEL_1: DAC Channel1 selected
+ * @arg DAC_CHANNEL_2: DAC Channel2 selected
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_DAC_Start(DAC_HandleTypeDef* hdac, uint32_t Channel)
+{
+ uint32_t tmp1 = 0, tmp2 = 0;
+
+ /* Check the parameters */
+ assert_param(IS_DAC_CHANNEL(Channel));
+
+ /* Process locked */
+ __HAL_LOCK(hdac);
+
+ /* Change DAC state */
+ hdac->State = HAL_DAC_STATE_BUSY;
+
+ /* Enable the Peripharal */
+ __HAL_DAC_ENABLE(hdac, Channel);
+
+ if(Channel == DAC_CHANNEL_1)
+ {
+ tmp1 = hdac->Instance->CR & DAC_CR_TEN1;
+ tmp2 = hdac->Instance->CR & DAC_CR_TSEL1;
+ /* Check if software trigger enabled */
+ if((tmp1 == DAC_CR_TEN1) && (tmp2 == DAC_CR_TSEL1))
+ {
+ /* Enable the selected DAC software conversion */
+ SET_BIT(hdac->Instance->SWTRIGR, DAC_SWTRIGR_SWTRIG1);
+ }
+ }
+ else
+ {
+ tmp1 = hdac->Instance->CR & DAC_CR_TEN2;
+ tmp2 = hdac->Instance->CR & DAC_CR_TSEL2;
+ /* Check if software trigger enabled */
+ if((tmp1 == DAC_CR_TEN2) && (tmp2 == DAC_CR_TSEL2))
+ {
+ /* Enable the selected DAC software conversion*/
+ SET_BIT(hdac->Instance->SWTRIGR, DAC_SWTRIGR_SWTRIG2);
+ }
+ }
+
+ /* Change DAC state */
+ hdac->State = HAL_DAC_STATE_READY;
+
+ /* Process unlocked */
+ __HAL_UNLOCK(hdac);
+
+ /* Return function status */
+ return HAL_OK;
+}
+
+/**
+ * @brief Enables DAC and starts conversion of channel using DMA.
+ * @param hdac: pointer to a DAC_HandleTypeDef structure that contains
+ * the configuration information for the specified DAC.
+ * @param Channel: The selected DAC channel.
+ * This parameter can be one of the following values:
+ * @arg DAC_CHANNEL_1: DAC Channel1 selected
+ * @arg DAC_CHANNEL_2: DAC Channel2 selected
+ * @param pData: The destination peripheral Buffer address.
+ * @param Length: The length of data to be transferred from memory to DAC peripheral
+ * @param Alignment: Specifies the data alignment for DAC channel.
+ * This parameter can be one of the following values:
+ * @arg DAC_ALIGN_8B_R: 8bit right data alignment selected
+ * @arg DAC_ALIGN_12B_L: 12bit left data alignment selected
+ * @arg DAC_ALIGN_12B_R: 12bit right data alignment selected
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_DAC_Start_DMA(DAC_HandleTypeDef* hdac, uint32_t Channel, uint32_t* pData, uint32_t Length, uint32_t Alignment)
+{
+ uint32_t tmpreg = 0;
+
+ /* Check the parameters */
+ assert_param(IS_DAC_CHANNEL(Channel));
+ assert_param(IS_DAC_ALIGN(Alignment));
+
+ /* Process locked */
+ __HAL_LOCK(hdac);
+
+ /* Change DAC state */
+ hdac->State = HAL_DAC_STATE_BUSY;
+
+ if(Channel == DAC_CHANNEL_1)
+ {
+ /* Set the DMA transfer complete callback for channel1 */
+ hdac->DMA_Handle1->XferCpltCallback = DAC_DMAConvCpltCh1;
+
+ /* Set the DMA half transfer complete callback for channel1 */
+ hdac->DMA_Handle1->XferHalfCpltCallback = DAC_DMAHalfConvCpltCh1;
+
+ /* Set the DMA error callback for channel1 */
+ hdac->DMA_Handle1->XferErrorCallback = DAC_DMAErrorCh1;
+
+ /* Enable the selected DAC channel1 DMA request */
+ SET_BIT(hdac->Instance->CR, DAC_CR_DMAEN1);
+
+ /* Case of use of channel 1 */
+ switch(Alignment)
+ {
+ case DAC_ALIGN_12B_R:
+ /* Get DHR12R1 address */
+ tmpreg = (uint32_t)&hdac->Instance->DHR12R1;
+ break;
+ case DAC_ALIGN_12B_L:
+ /* Get DHR12L1 address */
+ tmpreg = (uint32_t)&hdac->Instance->DHR12L1;
+ break;
+ case DAC_ALIGN_8B_R:
+ /* Get DHR8R1 address */
+ tmpreg = (uint32_t)&hdac->Instance->DHR8R1;
+ break;
+ default:
+ break;
+ }
+ UNUSED(tmpreg); /* avoid warning on tmpreg affectation with stupid compiler */
+ }
+ else
+ {
+ /* Set the DMA transfer complete callback for channel2 */
+ hdac->DMA_Handle2->XferCpltCallback = DAC_DMAConvCpltCh2;
+
+ /* Set the DMA half transfer complete callback for channel2 */
+ hdac->DMA_Handle2->XferHalfCpltCallback = DAC_DMAHalfConvCpltCh2;
+
+ /* Set the DMA error callback for channel2 */
+ hdac->DMA_Handle2->XferErrorCallback = DAC_DMAErrorCh2;
+
+ /* Enable the selected DAC channel2 DMA request */
+ SET_BIT(hdac->Instance->CR, DAC_CR_DMAEN2);
+
+ /* Case of use of channel 2 */
+ switch(Alignment)
+ {
+ case DAC_ALIGN_12B_R:
+ /* Get DHR12R2 address */
+ tmpreg = (uint32_t)&hdac->Instance->DHR12R2;
+ break;
+ case DAC_ALIGN_12B_L:
+ /* Get DHR12L2 address */
+ tmpreg = (uint32_t)&hdac->Instance->DHR12L2;
+ break;
+ case DAC_ALIGN_8B_R:
+ /* Get DHR8R2 address */
+ tmpreg = (uint32_t)&hdac->Instance->DHR8R2;
+ break;
+ default:
+ break;
+ }
+ }
+
+ /* Enable the DMA Stream */
+ if(Channel == DAC_CHANNEL_1)
+ {
+ /* Enable the DAC DMA underrun interrupt */
+ __HAL_DAC_ENABLE_IT(hdac, DAC_IT_DMAUDR1);
+
+ /* Enable the DMA Stream */
+ HAL_DMA_Start_IT(hdac->DMA_Handle1, (uint32_t)pData, tmpreg, Length);
+ }
+ else
+ {
+ /* Enable the DAC DMA underrun interrupt */
+ __HAL_DAC_ENABLE_IT(hdac, DAC_IT_DMAUDR2);
+
+ /* Enable the DMA Stream */
+ HAL_DMA_Start_IT(hdac->DMA_Handle2, (uint32_t)pData, tmpreg, Length);
+ }
+
+ /* Enable the Peripharal */
+ __HAL_DAC_ENABLE(hdac, Channel);
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(hdac);
+
+ /* Return function status */
+ return HAL_OK;
+}
+
+/**
+ * @brief Disables DAC and stop conversion of channel.
+ * @param hdac: pointer to a DAC_HandleTypeDef structure that contains
+ * the configuration information for the specified DAC.
+ * @param Channel: The selected DAC channel.
+ * This parameter can be one of the following values:
+ * @arg DAC_CHANNEL_1: DAC Channel1 selected
+ * @arg DAC_CHANNEL_2: DAC Channel2 selected
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_DAC_Stop_DMA(DAC_HandleTypeDef* hdac, uint32_t Channel)
+{
+ HAL_StatusTypeDef status = HAL_OK;
+
+ /* Check the parameters */
+ assert_param(IS_DAC_CHANNEL(Channel));
+
+ /* Disable the selected DAC channel DMA request */
+ CLEAR_BIT(hdac->Instance->CR, (DAC_CR_DMAEN1 << Channel));
+
+ /* Disable the Peripharal */
+ __HAL_DAC_DISABLE(hdac, Channel);
+
+ /* Disable the DMA Channel */
+ /* Channel1 is used */
+ if(Channel == DAC_CHANNEL_1)
+ {
+ status = HAL_DMA_Abort(hdac->DMA_Handle1);
+ }
+ else /* Channel2 is used for */
+ {
+ status = HAL_DMA_Abort(hdac->DMA_Handle2);
+ }
+
+ /* Check if DMA Channel effectively disabled */
+ if(status != HAL_OK)
+ {
+ /* Update DAC state machine to error */
+ hdac->State = HAL_DAC_STATE_ERROR;
+ }
+ else
+ {
+ /* Change DAC state */
+ hdac->State = HAL_DAC_STATE_READY;
+ }
+
+ /* Return function status */
+ return status;
+}
+
+/**
+ * @brief Returns the last data output value of the selected DAC channel.
+ * @param hdac: pointer to a DAC_HandleTypeDef structure that contains
+ * the configuration information for the specified DAC.
+ * @param Channel: The selected DAC channel.
+ * This parameter can be one of the following values:
+ * @arg DAC_CHANNEL_1: DAC Channel1 selected
+ * @arg DAC_CHANNEL_2: DAC Channel2 selected
+ * @retval The selected DAC channel data output value.
+ */
+uint32_t HAL_DAC_GetValue(DAC_HandleTypeDef* hdac, uint32_t Channel)
+{
+ /* Check the parameters */
+ assert_param(IS_DAC_CHANNEL(Channel));
+
+ /* Returns the DAC channel data output register value */
+ if(Channel == DAC_CHANNEL_1)
+ {
+ return hdac->Instance->DOR1;
+ }
+ else
+ {
+ return hdac->Instance->DOR2;
+ }
+}
+
+/**
+ * @brief Handles DAC interrupt request
+ * @param hdac: pointer to a DAC_HandleTypeDef structure that contains
+ * the configuration information for the specified DAC.
+ * @retval None
+ */
+void HAL_DAC_IRQHandler(DAC_HandleTypeDef* hdac)
+{
+ /* Check underrun flag of DAC channel 1 */
+ if(__HAL_DAC_GET_FLAG(hdac, DAC_FLAG_DMAUDR1))
+ {
+ /* Change DAC state to error state */
+ hdac->State = HAL_DAC_STATE_ERROR;
+
+ /* Set DAC error code to chanel1 DMA underrun error */
+ hdac->ErrorCode |= HAL_DAC_ERROR_DMAUNDERRUNCH1;
+
+ /* Clear the underrun flag */
+ __HAL_DAC_CLEAR_FLAG(hdac,DAC_FLAG_DMAUDR1);
+
+ /* Disable the selected DAC channel1 DMA request */
+ CLEAR_BIT(hdac->Instance->CR, DAC_CR_DMAEN1);
+
+ /* Error callback */
+ HAL_DAC_DMAUnderrunCallbackCh1(hdac);
+ }
+
+ /* Check underrun flag of DAC channel 2 */
+ if(__HAL_DAC_GET_FLAG(hdac, DAC_FLAG_DMAUDR2))
+ {
+ /* Change DAC state to error state */
+ hdac->State = HAL_DAC_STATE_ERROR;
+
+ /* Set DAC error code to channel2 DMA underrun error */
+ hdac->ErrorCode |= HAL_DAC_ERROR_DMAUNDERRUNCH2;
+
+ /* Clear the underrun flag */
+ __HAL_DAC_CLEAR_FLAG(hdac,DAC_FLAG_DMAUDR2);
+
+ /* Disable the selected DAC channel1 DMA request */
+ CLEAR_BIT(hdac->Instance->CR, DAC_CR_DMAEN2);
+
+ /* Error callback */
+ HAL_DACEx_DMAUnderrunCallbackCh2(hdac);
+ }
+}
+
+
+/**
+ * @brief Set the specified data holding register value for DAC channel.
+ * @param hdac: pointer to a DAC_HandleTypeDef structure that contains
+ * the configuration information for the specified DAC.
+ * @param Channel: The selected DAC channel.
+ * This parameter can be one of the following values:
+ * @arg DAC_CHANNEL_1: DAC Channel1 selected
+ * @arg DAC_CHANNEL_2: DAC Channel2 selected
+ * @param Alignment: Specifies the data alignment.
+ * This parameter can be one of the following values:
+ * @arg DAC_ALIGN_8B_R: 8bit right data alignment selected
+ * @arg DAC_ALIGN_12B_L: 12bit left data alignment selected
+ * @arg DAC_ALIGN_12B_R: 12bit right data alignment selected
+ * @param Data: Data to be loaded in the selected data holding register.
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_DAC_SetValue(DAC_HandleTypeDef* hdac, uint32_t Channel, uint32_t Alignment, uint32_t Data)
+{
+ __IO uint32_t tmp = 0;
+
+ /* Check the parameters */
+ assert_param(IS_DAC_CHANNEL(Channel));
+ assert_param(IS_DAC_ALIGN(Alignment));
+ assert_param(IS_DAC_DATA(Data));
+
+ tmp = (uint32_t)hdac->Instance;
+ if(Channel == DAC_CHANNEL_1)
+ {
+ tmp += __DAC_DHR12R1_ALIGNEMENT(Alignment);
+ }
+ else
+ {
+ tmp += __DAC_DHR12R2_ALIGNEMENT(Alignment);
+ }
+
+ /* Set the DAC channel selected data holding register */
+ *(__IO uint32_t *) tmp = Data;
+
+ /* Return function status */
+ return HAL_OK;
+}
+#else /* All products with only one channel */
+
+/**
+ * @brief Enables DAC and starts conversion of channel.
+ * @param hdac: pointer to a DAC_HandleTypeDef structure that contains
+ * the configuration information for the specified DAC.
+ * @param Channel: The selected DAC channel.
+ * This parameter can be one of the following values:
+ * @arg DAC_CHANNEL_1: DAC Channel1 selected
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_DAC_Start(DAC_HandleTypeDef* hdac, uint32_t Channel)
+{
+ uint32_t tmp1 = 0, tmp2 = 0;
+
+ /* Check the parameters */
+ assert_param(IS_DAC_CHANNEL(Channel));
+
+ /* Process locked */
+ __HAL_LOCK(hdac);
+
+ /* Change DAC state */
+ hdac->State = HAL_DAC_STATE_BUSY;
+
+ /* Enable the Peripharal */
+ __HAL_DAC_ENABLE(hdac, Channel);
+
+ tmp1 = hdac->Instance->CR & DAC_CR_TEN1;
+ tmp2 = hdac->Instance->CR & DAC_CR_TSEL1;
+ /* Check if software trigger enabled */
+ if((tmp1 == DAC_CR_TEN1) && (tmp2 == DAC_CR_TSEL1))
+ {
+ /* Enable the selected DAC software conversion */
+ SET_BIT(hdac->Instance->SWTRIGR, DAC_SWTRIGR_SWTRIG1);
+ }
+
+ /* Change DAC state */
+ hdac->State = HAL_DAC_STATE_READY;
+
+ /* Process unlocked */
+ __HAL_UNLOCK(hdac);
+
+ /* Return function status */
+ return HAL_OK;
+}
+
+/**
+ * @brief Enables DAC and starts conversion of channel using DMA.
+ * @param hdac: pointer to a DAC_HandleTypeDef structure that contains
+ * the configuration information for the specified DAC.
+ * @param Channel: The selected DAC channel.
+ * This parameter can be one of the following values:
+ * @arg DAC_CHANNEL_1: DAC Channel1 selected
+ * @param pData: The destination peripheral Buffer address.
+ * @param Length: The length of data to be transferred from memory to DAC peripheral
+ * @param Alignment: Specifies the data alignment for DAC channel.
+ * This parameter can be one of the following values:
+ * @arg DAC_ALIGN_8B_R: 8bit right data alignment selected
+ * @arg DAC_ALIGN_12B_L: 12bit left data alignment selected
+ * @arg DAC_ALIGN_12B_R: 12bit right data alignment selected
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_DAC_Start_DMA(DAC_HandleTypeDef* hdac, uint32_t Channel, uint32_t* pData, uint32_t Length, uint32_t Alignment)
+{
+ uint32_t tmpreg = 0;
+
+ /* Check the parameters */
+ assert_param(IS_DAC_CHANNEL(Channel));
+ assert_param(IS_DAC_ALIGN(Alignment));
+
+ /* Process locked */
+ __HAL_LOCK(hdac);
+
+ /* Change DAC state */
+ hdac->State = HAL_DAC_STATE_BUSY;
+
+ /* Set the DMA transfer complete callback for channel1 */
+ hdac->DMA_Handle1->XferCpltCallback = DAC_DMAConvCpltCh1;
+
+ /* Set the DMA half transfer complete callback for channel1 */
+ hdac->DMA_Handle1->XferHalfCpltCallback = DAC_DMAHalfConvCpltCh1;
+
+ /* Set the DMA error callback for channel1 */
+ hdac->DMA_Handle1->XferErrorCallback = DAC_DMAErrorCh1;
+
+ /* Enable the selected DAC channel1 DMA request */
+ SET_BIT(hdac->Instance->CR, DAC_CR_DMAEN1);
+
+ /* Case of use of channel 1 */
+ switch(Alignment)
+ {
+ case DAC_ALIGN_12B_R:
+ /* Get DHR12R1 address */
+ tmpreg = (uint32_t)&hdac->Instance->DHR12R1;
+ break;
+ case DAC_ALIGN_12B_L:
+ /* Get DHR12L1 address */
+ tmpreg = (uint32_t)&hdac->Instance->DHR12L1;
+ break;
+ case DAC_ALIGN_8B_R:
+ /* Get DHR8R1 address */
+ tmpreg = (uint32_t)&hdac->Instance->DHR8R1;
+ break;
+ default:
+ break;
+ }
+ UNUSED(tmpreg); /* avoid warning on tmpreg affectation with stupid compiler */
+
+ /* Enable the DMA Stream */
+ /* Enable the DAC DMA underrun interrupt */
+ __HAL_DAC_ENABLE_IT(hdac, DAC_IT_DMAUDR1);
+
+ /* Enable the DMA Stream */
+ HAL_DMA_Start_IT(hdac->DMA_Handle1, (uint32_t)pData, tmpreg, Length);
+
+ /* Enable the Peripharal */
+ __HAL_DAC_ENABLE(hdac, Channel);
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(hdac);
+
+ /* Return function status */
+ return HAL_OK;
+}
+
+/**
+ * @brief Disables DAC and stop conversion of channel.
+ * @param hdac: pointer to a DAC_HandleTypeDef structure that contains
+ * the configuration information for the specified DAC.
+ * @param Channel: The selected DAC channel.
+ * This parameter can be one of the following values:
+ * @arg DAC_CHANNEL_1: DAC Channel1 selected
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_DAC_Stop_DMA(DAC_HandleTypeDef* hdac, uint32_t Channel)
+{
+ HAL_StatusTypeDef status = HAL_OK;
+
+ /* Check the parameters */
+ assert_param(IS_DAC_CHANNEL(Channel));
+
+ /* Disable the selected DAC channel DMA request */
+ CLEAR_BIT(hdac->Instance->CR, (DAC_CR_DMAEN1 << Channel));
+
+ /* Disable the Peripharal */
+ __HAL_DAC_DISABLE(hdac, Channel);
+
+ /* Disable the DMA Channel */
+ status = HAL_DMA_Abort(hdac->DMA_Handle1);
+
+ /* Check if DMA Channel effectively disabled */
+ if(status != HAL_OK)
+ {
+ /* Update DAC state machine to error */
+ hdac->State = HAL_DAC_STATE_ERROR;
+ }
+ else
+ {
+ /* Change DAC state */
+ hdac->State = HAL_DAC_STATE_READY;
+ }
+
+ /* Return function status */
+ return status;
+}
+
+/**
+ * @brief Returns the last data output value of the selected DAC channel.
+ * @param hdac: pointer to a DAC_HandleTypeDef structure that contains
+ * the configuration information for the specified DAC.
+ * @param Channel: The selected DAC channel.
+ * This parameter can be one of the following values:
+ * @arg DAC_CHANNEL_1: DAC Channel1 selected
+ * @retval The selected DAC channel data output value.
+ */
+uint32_t HAL_DAC_GetValue(DAC_HandleTypeDef* hdac, uint32_t Channel)
+{
+ /* Check the parameters */
+ assert_param(IS_DAC_CHANNEL(Channel));
+
+ /* Returns the DAC channel data output register value */
+ return hdac->Instance->DOR1;
+}
+
+/**
+ * @brief Handles DAC interrupt request
+ * @param hdac: pointer to a DAC_HandleTypeDef structure that contains
+ * the configuration information for the specified DAC.
+ * @retval None
+ */
+void HAL_DAC_IRQHandler(DAC_HandleTypeDef* hdac)
+{
+ /* Check underrun flag of DAC channel 1 */
+ if(__HAL_DAC_GET_FLAG(hdac, DAC_FLAG_DMAUDR1))
+ {
+ /* Change DAC state to error state */
+ hdac->State = HAL_DAC_STATE_ERROR;
+
+ /* Set DAC error code to chanel1 DMA underrun error */
+ hdac->ErrorCode |= HAL_DAC_ERROR_DMAUNDERRUNCH1;
+
+ /* Clear the underrun flag */
+ __HAL_DAC_CLEAR_FLAG(hdac,DAC_FLAG_DMAUDR1);
+
+ /* Disable the selected DAC channel1 DMA request */
+ CLEAR_BIT(hdac->Instance->CR, DAC_CR_DMAEN1);
+
+ /* Error callback */
+ HAL_DAC_DMAUnderrunCallbackCh1(hdac);
+ }
+}
+
+/**
+ * @brief Set the specified data holding register value for DAC channel.
+ * @param hdac: pointer to a DAC_HandleTypeDef structure that contains
+ * the configuration information for the specified DAC.
+ * @param Channel: The selected DAC channel.
+ * This parameter can be one of the following values:
+ * @arg DAC_CHANNEL_1: DAC Channel1 selected
+ * @param Alignment: Specifies the data alignment.
+ * This parameter can be one of the following values:
+ * @arg DAC_ALIGN_8B_R: 8bit right data alignment selected
+ * @arg DAC_ALIGN_12B_L: 12bit left data alignment selected
+ * @arg DAC_ALIGN_12B_R: 12bit right data alignment selected
+ * @param Data: Data to be loaded in the selected data holding register.
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_DAC_SetValue(DAC_HandleTypeDef* hdac, uint32_t Channel, uint32_t Alignment, uint32_t Data)
+{
+ __IO uint32_t tmp = 0;
+
+ /* Check the parameters */
+ assert_param(IS_DAC_CHANNEL(Channel));
+ assert_param(IS_DAC_ALIGN(Alignment));
+ assert_param(IS_DAC_DATA(Data));
+
+ tmp = (uint32_t)hdac->Instance;
+ tmp += __DAC_DHR12R1_ALIGNEMENT(Alignment);
+
+ /* Set the DAC channel selected data holding register */
+ *(__IO uint32_t *) tmp = Data;
+
+ /* Return function status */
+ return HAL_OK;
+}
+
+#endif /* #if defined (STM32L072xx) || defined (STM32L073xx) || defined (STM32L082xx) || defined (STM32L083xx) */
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/** @defgroup DACEx_Private_Functions DACEx Private Functions
+ * @{
+ */
+#if defined (STM32L072xx) || defined (STM32L073xx) || defined (STM32L082xx) || defined (STM32L083xx)
+/**
+ * @brief DMA conversion complete callback.
+ * @param hdma: pointer to a DMA_HandleTypeDef structure that contains
+ * the configuration information for the specified DMA module.
+ * @retval None
+ */
+static void DAC_DMAConvCpltCh2(DMA_HandleTypeDef *hdma)
+{
+ DAC_HandleTypeDef* hdac = ( DAC_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
+
+ HAL_DACEx_ConvCpltCallbackCh2(hdac);
+
+ hdac->State= HAL_DAC_STATE_READY;
+}
+
+/**
+ * @brief DMA half transfer complete callback.
+ * @param hdma: pointer to a DMA_HandleTypeDef structure that contains
+ * the configuration information for the specified DMA module.
+ * @retval None
+ */
+static void DAC_DMAHalfConvCpltCh2(DMA_HandleTypeDef *hdma)
+{
+ DAC_HandleTypeDef* hdac = ( DAC_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
+ /* Conversion complete callback */
+ HAL_DACEx_ConvHalfCpltCallbackCh2(hdac);
+}
+
+/**
+ * @brief DMA error callback
+ * @param hdma: pointer to a DMA_HandleTypeDef structure that contains
+ * the configuration information for the specified DMA module.
+ * @retval None
+ */
+static void DAC_DMAErrorCh2(DMA_HandleTypeDef *hdma)
+{
+ DAC_HandleTypeDef* hdac = ( DAC_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
+
+ /* Set DAC error code to DMA error */
+ hdac->ErrorCode |= HAL_DAC_ERROR_DMA;
+
+ HAL_DACEx_ErrorCallbackCh2(hdac);
+
+ hdac->State= HAL_DAC_STATE_READY;
+}
+#endif /* STM32L072xx || STM32L073xx || STM32L082xx || STM32L083xx */
+
+/**
+ * @brief DMA conversion complete callback.
+ * @param hdma: pointer to a DMA_HandleTypeDef structure that contains
+ * the configuration information for the specified DMA module.
+ * @retval None
+ */
+static void DAC_DMAConvCpltCh1(DMA_HandleTypeDef *hdma)
+{
+ DAC_HandleTypeDef* hdac = ( DAC_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
+
+ HAL_DAC_ConvCpltCallbackCh1(hdac);
+
+ hdac->State= HAL_DAC_STATE_READY;
+}
+
+/**
+ * @brief DMA half transfer complete callback.
+ * @param hdma: pointer to a DMA_HandleTypeDef structure that contains
+ * the configuration information for the specified DMA module.
+ * @retval None
+ */
+static void DAC_DMAHalfConvCpltCh1(DMA_HandleTypeDef *hdma)
+{
+ DAC_HandleTypeDef* hdac = ( DAC_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
+ /* Conversion complete callback */
+ HAL_DAC_ConvHalfCpltCallbackCh1(hdac);
+}
+
+/**
+ * @brief DMA error callback
+ * @param hdma: pointer to a DMA_HandleTypeDef structure that contains
+ * the configuration information for the specified DMA module.
+ * @retval None
+ */
+static void DAC_DMAErrorCh1(DMA_HandleTypeDef *hdma)
+{
+ DAC_HandleTypeDef* hdac = ( DAC_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
+
+ /* Set DAC error code to DMA error */
+ hdac->ErrorCode |= HAL_DAC_ERROR_DMA;
+
+ HAL_DAC_ErrorCallbackCh1(hdac);
+
+ hdac->State= HAL_DAC_STATE_READY;
+}
+
+/**
+ * @}
+ */
+
+
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+#endif /* HAL_DAC_MODULE_ENABLED */
+#endif /* #if !defined (STM32L031xx) && !defined (STM32L041xx) && !defined (STM32L051xx) && !defined (STM32L061xx) && !defined (STM32L071xx) && !defined (STM32L081xx) */
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+
projects / qmk_firmware.git / blobdiff