1 /**
2   ******************************************************************************
3   * @file    stm32l5xx_hal_dfsdm_ex.c
4   * @author  MCD Application Team
5   * @brief   DFSDM Extended HAL module driver.
6   *          This file provides firmware functions to manage the following
7   *          functionality of the DFSDM Peripheral Controller:
8   *           + Set and get pulses skipping on channel.
9   *
10   ******************************************************************************
11   * @attention
12   *
13   * Copyright (c) 2019 STMicroelectronics.
14   * All rights reserved.
15   *
16   * This software is licensed under terms that can be found in the LICENSE file
17   * in the root directory of this software component.
18   * If no LICENSE file comes with this software, it is provided AS-IS.
19   *
20   ******************************************************************************
21   */
22 
23 /* Includes ------------------------------------------------------------------*/
24 #include "stm32l5xx_hal.h"
25 
26 /** @addtogroup STM32L5xx_HAL_Driver
27   * @{
28   */
29 
30 #ifdef HAL_DFSDM_MODULE_ENABLED
31 
32 /** @defgroup DFSDMEx DFSDMEx
33   * @brief DFSDM Extended HAL module driver
34   * @{
35   */
36 
37 /* Private types -------------------------------------------------------------*/
38 /* Private variables ---------------------------------------------------------*/
39 /* Private constants ---------------------------------------------------------*/
40 /* Private macros ------------------------------------------------------------*/
41 /* Private functions ---------------------------------------------------------*/
42 /* Exported functions --------------------------------------------------------*/
43 
44 /** @defgroup DFSDMEx_Exported_Functions DFSDM Extended Exported Functions
45   * @{
46   */
47 
48 /** @defgroup DFSDMEx_Exported_Functions_Group1_Channel Extended channel operation functions
49   * @brief    DFSDM extended channel operation functions
50  *
51 @verbatim
52  ===============================================================================
53                ##### Extended channel operation functions #####
54  ===============================================================================
55     [..]  This section provides functions allowing to:
56       (+) Set and get value of pulses skipping on channel
57 
58 @endverbatim
59   * @{
60   */
61 
62 /**
63   * @brief  Set value of pulses skipping.
64   * @param  hdfsdm_channel DFSDM channel handle.
65   * @param  PulsesValue Value of pulses to be skipped.
66   *         This parameter must be a number between Min_Data = 0 and Max_Data = 63.
67   * @retval HAL status.
68   */
HAL_DFDSMEx_ChannelSetPulsesSkipping(DFSDM_Channel_HandleTypeDef * hdfsdm_channel,uint32_t PulsesValue)69 HAL_StatusTypeDef HAL_DFDSMEx_ChannelSetPulsesSkipping(DFSDM_Channel_HandleTypeDef *hdfsdm_channel, uint32_t PulsesValue)
70 {
71   HAL_StatusTypeDef status = HAL_OK;
72 
73   /* Check pulses value */
74   assert_param(IS_DFSDM_CHANNEL_SKIPPING_VALUE(PulsesValue));
75 
76   /* Check DFSDM channel state */
77   if (hdfsdm_channel->State == HAL_DFSDM_CHANNEL_STATE_READY)
78   {
79     /* Set new value of pulses skipping */
80     hdfsdm_channel->Instance->CHDLYR = (PulsesValue & DFSDM_CHDLYR_PLSSKP);
81   }
82   else
83   {
84     status = HAL_ERROR;
85   }
86   return status;
87 }
88 
89 /**
90   * @brief  Get value of pulses skipping.
91   * @param  hdfsdm_channel DFSDM channel handle.
92   * @param  PulsesValue Value of pulses to be skipped.
93   * @retval HAL status.
94   */
HAL_DFDSMEx_ChannelGetPulsesSkipping(const DFSDM_Channel_HandleTypeDef * hdfsdm_channel,uint32_t * PulsesValue)95 HAL_StatusTypeDef HAL_DFDSMEx_ChannelGetPulsesSkipping(const DFSDM_Channel_HandleTypeDef *hdfsdm_channel, uint32_t *PulsesValue)
96 {
97   HAL_StatusTypeDef status = HAL_OK;
98 
99   /* Check DFSDM channel state */
100   if (hdfsdm_channel->State == HAL_DFSDM_CHANNEL_STATE_READY)
101   {
102     /* Get value of remaining pulses to be skipped */
103     *PulsesValue = (hdfsdm_channel->Instance->CHDLYR & DFSDM_CHDLYR_PLSSKP);
104   }
105   else
106   {
107     status = HAL_ERROR;
108   }
109   return status;
110 }
111 
112 /**
113   * @}
114   */
115 
116 /**
117   * @}
118   */
119 
120 /**
121   * @}
122   */
123 
124 #endif /* HAL_DFSDM_MODULE_ENABLED */
125 
126 /**
127   * @}
128   */
129