lib/main/STM32G4/Drivers/STM32G4xx_HAL_Driver/Src/stm32g4xx_ll_ucpd.c

   1 /**
   2   ******************************************************************************
   3   * @file    stm32g4xx_ll_ucpd.c
   4   * @author  MCD Application Team
   5   * @brief   UCPD LL module driver.
   6   ******************************************************************************
   7   * @attention
   8   *
   9   * <h2><center>&copy; Copyright (c) 2018 STMicroelectronics.
  10   * All rights reserved.</center></h2>
  11   *
  12   * This software component is licensed by ST under BSD 3-Clause license,
  13   * the "License"; You may not use this file except in compliance with the
  14   * License. You may obtain a copy of the License at:
  15   *                        opensource.org/licenses/BSD-3-Clause
  16   *
  17   ******************************************************************************
  18   */
  19 #if defined(USE_FULL_LL_DRIVER)
  20
  21 /* Includes ------------------------------------------------------------------*/
  22 #include "stm32g4xx_ll_ucpd.h"
  23 #include "stm32g4xx_ll_bus.h"
  24 #include "stm32g4xx_ll_rcc.h"
  25
  26 #ifdef  USE_FULL_ASSERT
  27 #include "stm32_assert.h"
  28 #else
  29 #define assert_param(expr) ((void)0U)
  30 #endif
  31
  32 /** @addtogroup STM32G4xx_LL_Driver
  33   * @{
  34   */
  35 #if defined (UCPD1)
  36 /** @addtogroup UCPD_LL
  37   * @{
  38   */
  39
  40 /* Private types -------------------------------------------------------------*/
  41 /* Private variables ---------------------------------------------------------*/
  42
  43 /* Private constants ---------------------------------------------------------*/
  44 /** @defgroup UCPD_LL_Private_Constants UCPD Private Constants
  45   * @{
  46   */
  47
  48 /**
  49   * @}
  50   */
  51
  52 /* Private macros ------------------------------------------------------------*/
  53 /** @defgroup UCPD_LL_Private_Macros UCPD Private Macros
  54   * @{
  55   */
  56
  57
  58 /**
  59   * @}
  60   */
  61
  62 /* Private function prototypes -----------------------------------------------*/
  63
  64 /* Exported functions --------------------------------------------------------*/
  65 /** @addtogroup UCPD_LL_Exported_Functions
  66   * @{
  67   */
  68
  69 /** @addtogroup UCPD_LL_EF_Init
  70   * @{
  71   */
  72
  73 /**
  74   * @brief  De-initialize the UCPD registers to their default reset values.
  75   * @param  UCPDx ucpd Instance
  76   * @retval An ErrorStatus enumeration value:
  77   *          - SUCCESS: ucpd registers are de-initialized
  78   *          - ERROR: ucpd registers are not de-initialized
  79   */
  80 ErrorStatus LL_UCPD_DeInit(UCPD_TypeDef *UCPDx)
  81 {
  82   ErrorStatus status = ERROR;
  83
  84   /* Check the parameters */
  85   assert_param(IS_UCPD_ALL_INSTANCE(UCPDx));
  86
  87   LL_UCPD_Disable(UCPDx);
  88
  89   if (UCPD1 == UCPDx)
  90   {
  91     /* Force reset of ucpd clock */
  92     LL_APB1_GRP2_ForceReset(LL_APB1_GRP2_PERIPH_UCPD1);
  93
  94     /* Release reset of ucpd clock */
  95     LL_APB1_GRP2_ReleaseReset(LL_APB1_GRP2_PERIPH_UCPD1);
  96
  97     /* Disbale ucpd clock */
  98     LL_APB1_GRP2_DisableClock(LL_APB1_GRP2_PERIPH_UCPD1);
  99
 100     status = SUCCESS;
 101   }
 102
 103   return status;
 104 }
 105
 106 /**
 107   * @brief  Initialize the ucpd registers according to the specified parameters in UCPD_InitStruct.
 108   * @note   As some bits in ucpd configuration registers can only be written when the ucpd is disabled (ucpd_CR1_SPE bit =0),
 109   *         UCPD peripheral should be in disabled state prior calling this function. Otherwise, ERROR result will be returned.
 110   * @param  UCPDx UCPD Instance
 111   * @param  UCPD_InitStruct pointer to a @ref LL_UCPD_InitTypeDef structure that contains
 112   *         the configuration information for the UCPD peripheral.
 113   * @retval An ErrorStatus enumeration value. (Return always SUCCESS)
 114   */
 115 ErrorStatus LL_UCPD_Init(UCPD_TypeDef *UCPDx, LL_UCPD_InitTypeDef *UCPD_InitStruct)
 116 {
 117   /* Check the ucpd Instance UCPDx*/
 118   assert_param(IS_UCPD_ALL_INSTANCE(UCPDx));
 119
 120   if(UCPD1 == UCPDx)
 121   {
 122     LL_APB1_GRP2_EnableClock(LL_APB1_GRP2_PERIPH_UCPD1);
 123   }
 124
 125
 126   LL_UCPD_Disable(UCPDx);
 127
 128   /*---------------------------- UCPDx CFG1 Configuration ------------------------*/
 129   MODIFY_REG(UCPDx->CFG1,
 130              UCPD_CFG1_PSC_UCPDCLK | UCPD_CFG1_TRANSWIN | UCPD_CFG1_IFRGAP | UCPD_CFG1_HBITCLKDIV,
 131              UCPD_InitStruct->psc_ucpdclk | (UCPD_InitStruct->transwin  << UCPD_CFG1_TRANSWIN_Pos) |
 132              (UCPD_InitStruct->IfrGap << UCPD_CFG1_IFRGAP_Pos) | UCPD_InitStruct->HbitClockDiv);
 133
 134   return SUCCESS;
 135 }
 136
 137 /**
 138   * @brief  Set each @ref LL_UCPD_InitTypeDef field to default value.
 139   * @param  UCPD_InitStruct pointer to a @ref LL_UCPD_InitTypeDef structure
 140   *         whose fields will be set to default values.
 141   * @retval None
 142   */
 143 void LL_UCPD_StructInit(LL_UCPD_InitTypeDef *UCPD_InitStruct)
 144 {
 145   /* Set UCPD_InitStruct fields to default values */
 146   UCPD_InitStruct->psc_ucpdclk  = LL_UCPD_PSC_DIV1;
 147   UCPD_InitStruct->transwin     = 0x7;   /* Divide by 8                     */
 148   UCPD_InitStruct->IfrGap       = 0x10;  /* Divide by 17                    */
 149   UCPD_InitStruct->HbitClockDiv = 0x1A;  /* Divide by 27 to produce HBITCLK */
 150 }
 151
 152 /**
 153   * @}
 154   */
 155
 156 /**
 157   * @}
 158   */
 159
 160 /**
 161   * @}
 162   */
 163 #endif /* defined (UCPD1) */
 164 /**
 165   * @}
 166   */
 167
 168 #endif /* USE_FULL_LL_DRIVER */
 169
 170 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/