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/**

  ******************************************************************************

  * @file    stm32f1xx_hal_dac_ex.c

  * @author  MCD Application Team

  * @brief   Extended DAC HAL module driver.

  *          This file provides firmware functions to manage the extended

  *          functionalities of the DAC peripheral.

  *

  *

  ******************************************************************************

  * @attention

  *

  * Copyright (c) 2016 STMicroelectronics.

  * All rights reserved.

  *

  * This software is licensed under terms that can be found in the LICENSE file

  * in the root directory of this software component.

  * If no LICENSE file comes with this software, it is provided AS-IS.

  *

  ******************************************************************************

  @verbatim

  ==============================================================================

                      ##### How to use this driver #####

  ==============================================================================

    [..]

     *** Signal generation operation ***

     ===================================

     [..]

      (+) Use HAL_DACEx_TriangleWaveGenerate() to generate Triangle signal.

      (+) Use HAL_DACEx_NoiseWaveGenerate() to generate Noise signal.

 @endverbatim

  ******************************************************************************

  */

/* Includes ------------------------------------------------------------------*/

#include "stm32f1xx_hal.h"

/** @addtogroup STM32F1xx_HAL_Driver

  * @{

  */

#ifdef HAL_DAC_MODULE_ENABLED

#if defined(DAC)

/** @defgroup DACEx DACEx

  * @brief DAC Extended HAL module driver

  * @{

  */

/* Private typedef -----------------------------------------------------------*/

/* Private define ------------------------------------------------------------*/

/* Private macro -------------------------------------------------------------*/

/* Private variables ---------------------------------------------------------*/

/* Private function prototypes -----------------------------------------------*/

/* Exported functions --------------------------------------------------------*/

/** @defgroup DACEx_Exported_Functions DACEx Exported Functions

  * @{

  */

/** @defgroup DACEx_Exported_Functions_Group2 IO operation functions

  *  @brief    Extended IO operation functions

  *

@verbatim

  ==============================================================================

                 ##### Extended features functions #####

  ==============================================================================

    [..]  This section provides functions allowing to:

      (+) Start conversion.

      (+) Stop conversion.

      (+) Start conversion and enable DMA transfer.

      (+) Stop conversion and disable DMA transfer.

      (+) Get result of conversion.

      (+) Get result of dual mode conversion.

@endverbatim

  * @{

  */

/**

  * @brief  Enables DAC and starts conversion of both channels.

  * @param  hdac pointer to a DAC_HandleTypeDef structure that contains

  *         the configuration information for the specified DAC.

  * @retval HAL status

  */

HAL_StatusTypeDef HAL_DACEx_DualStart(DAC_HandleTypeDef *hdac)

{

  uint32_t tmp_swtrig = 0UL;

  /* Check the DAC peripheral handle */

  if (hdac == NULL)

  {

    return HAL_ERROR;

  }

  /* Process locked */

  __HAL_LOCK(hdac);

  /* Change DAC state */

  hdac->State = HAL_DAC_STATE_BUSY;

  /* Enable the Peripheral */

  __HAL_DAC_ENABLE(hdac, DAC_CHANNEL_1);

  __HAL_DAC_ENABLE(hdac, DAC_CHANNEL_2);

  /* Check if software trigger enabled */

  if ((hdac->Instance->CR & (DAC_CR_TEN1 | DAC_CR_TSEL1)) == DAC_TRIGGER_SOFTWARE)

  {

    tmp_swtrig |= DAC_SWTRIGR_SWTRIG1;

  }

  if ((hdac->Instance->CR & (DAC_CR_TEN2 | DAC_CR_TSEL2)) == (DAC_TRIGGER_SOFTWARE << (DAC_CHANNEL_2 & 0x10UL)))

  {

    tmp_swtrig |= DAC_SWTRIGR_SWTRIG2;

  }

  /* Enable the selected DAC software conversion*/

  SET_BIT(hdac->Instance->SWTRIGR, tmp_swtrig);

  /* Change DAC state */

  hdac->State = HAL_DAC_STATE_READY;

  /* Process unlocked */

  __HAL_UNLOCK(hdac);

  /* Return function status */

  return HAL_OK;

}

/**

  * @brief  Disables DAC and stop conversion of both channels.

  * @param  hdac pointer to a DAC_HandleTypeDef structure that contains

  *         the configuration information for the specified DAC.

  * @retval HAL status

  */

HAL_StatusTypeDef HAL_DACEx_DualStop(DAC_HandleTypeDef *hdac)

{

  /* Check the DAC peripheral handle */

  if (hdac == NULL)

  {

    return HAL_ERROR;

  }

  /* Disable the Peripheral */

  __HAL_DAC_DISABLE(hdac, DAC_CHANNEL_1);

  __HAL_DAC_DISABLE(hdac, DAC_CHANNEL_2);

  /* Change DAC state */

  hdac->State = HAL_DAC_STATE_READY;

  /* Return function status */

  return HAL_OK;

}

/**

  * @brief  Enable or disable 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

  * @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 DAC peripheral handle */

  if (hdac == NULL)

  {

    return HAL_ERROR;

  }

  /* 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 & 0x10UL),

             (DAC_CR_WAVE1_1 | Amplitude) << (Channel & 0x10UL));

  /* Change DAC state */

  hdac->State = HAL_DAC_STATE_READY;

  /* Process unlocked */

  __HAL_UNLOCK(hdac);

  /* Return function status */

  return HAL_OK;

}

/**

  * @brief  Enable or disable 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

  * @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 DAC peripheral handle */

  if (hdac == NULL)

  {

    return HAL_ERROR;

  }

  /* 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 & 0x10UL),

             (DAC_CR_WAVE1_0 | Amplitude) << (Channel & 0x10UL));

  /* Change DAC state */

  hdac->State = HAL_DAC_STATE_READY;

  /* Process unlocked */

  __HAL_UNLOCK(hdac);

  /* Return function status */

  return HAL_OK;

}

/**

  * @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 Channel1 to be loaded in the selected data holding register.

  * @param  Data2 Data for DAC Channel2 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;

  uint32_t tmp;

  /* Check the DAC peripheral handle */

  if (hdac == NULL)

  {

    return HAL_ERROR;

  }

  /* 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 << 8U) | Data1;

  }

  else

  {

    data = ((uint32_t)Data2 << 16U) | Data1;

  }

  tmp = (uint32_t)hdac->Instance;

  tmp += DAC_DHR12RD_ALIGNMENT(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)

{

  /* Prevent unused argument(s) compilation warning */

  UNUSED(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)

{

  /* Prevent unused argument(s) compilation warning */

  UNUSED(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)

{

  /* Prevent unused argument(s) compilation warning */

  UNUSED(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)

{

  /* Prevent unused argument(s) compilation warning */

  UNUSED(hdac);

  /* NOTE : This function should not be modified, when the callback is needed,

            the HAL_DACEx_DMAUnderrunCallbackCh2 could be implemented in the user file

   */

}

/**

  * @}

  */

/** @defgroup DACEx_Exported_Functions_Group3 Peripheral Control functions

  *  @brief    Extended Peripheral Control functions

  *

@verbatim

  ==============================================================================

             ##### Peripheral Control functions #####

  ==============================================================================

    [..]  This section provides functions allowing to:

      (+) Set the specified data holding register value for DAC channel.

@endverbatim

  * @{

  */

/**

  * @brief  Return 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(const DAC_HandleTypeDef *hdac)

{

  uint32_t tmp = 0UL;

  tmp |= hdac->Instance->DOR1;

  tmp |= hdac->Instance->DOR2 << 16UL;

  /* Returns the DAC channel data output register value */

  return tmp;

}

/**

  * @}

  */

/**

  * @}

  */

/* Private functions ---------------------------------------------------------*/

/** @defgroup DACEx_Private_Functions DACEx private functions

  *  @brief    Extended private functions

  * @{

  */

/**

  * @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

  */

void DAC_DMAConvCpltCh2(DMA_HandleTypeDef *hdma)

{

  DAC_HandleTypeDef *hdac = (DAC_HandleTypeDef *)((DMA_HandleTypeDef *)hdma)->Parent;

#if (USE_HAL_DAC_REGISTER_CALLBACKS == 1)

  hdac->ConvCpltCallbackCh2(hdac);

#else

  HAL_DACEx_ConvCpltCallbackCh2(hdac);

#endif /* USE_HAL_DAC_REGISTER_CALLBACKS */

  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

  */

void DAC_DMAHalfConvCpltCh2(DMA_HandleTypeDef *hdma)

{

  DAC_HandleTypeDef *hdac = (DAC_HandleTypeDef *)((DMA_HandleTypeDef *)hdma)->Parent;

  /* Conversion complete callback */

#if (USE_HAL_DAC_REGISTER_CALLBACKS == 1)

  hdac->ConvHalfCpltCallbackCh2(hdac);

#else

  HAL_DACEx_ConvHalfCpltCallbackCh2(hdac);

#endif /* USE_HAL_DAC_REGISTER_CALLBACKS */

}

/**

  * @brief  DMA error callback.

  * @param  hdma pointer to a DMA_HandleTypeDef structure that contains

  *                the configuration information for the specified DMA module.

  * @retval None

  */

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;

#if (USE_HAL_DAC_REGISTER_CALLBACKS == 1)

  hdac->ErrorCallbackCh2(hdac);

#else

  HAL_DACEx_ErrorCallbackCh2(hdac);

#endif /* USE_HAL_DAC_REGISTER_CALLBACKS */

  hdac->State = HAL_DAC_STATE_READY;

}

/**

  * @}

  */

/**

  * @}

  */

#endif /* DAC */

#endif /* HAL_DAC_MODULE_ENABLED */

/**

  * @}

  */