lib/main/STM32H7/Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_ll_gpio.c

   1 /**
   2   ******************************************************************************
   3   * @file    stm32h7xx_ll_gpio.c
   4   * @author  MCD Application Team
   5   * @brief   GPIO LL module driver.
   6   ******************************************************************************
   7   * @attention
   8   *
   9   * <h2><center>&copy; COPYRIGHT(c) 2017 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
  20 #if defined(USE_FULL_LL_DRIVER)
  21
  22 /* Includes ------------------------------------------------------------------*/
  23 #include "stm32h7xx_ll_gpio.h"
  24 #include "stm32h7xx_ll_bus.h"
  25 #ifdef  USE_FULL_ASSERT
  26 #include "stm32_assert.h"
  27 #else
  28 #define assert_param(expr) ((void)0U)
  29 #endif
  30
  31 /** @addtogroup STM32H7xx_LL_Driver
  32   * @{
  33   */
  34
  35 #if defined (GPIOA) || defined (GPIOB) || defined (GPIOC) || defined (GPIOD) || defined (GPIOE) || defined (GPIOF) || defined (GPIOG) || defined (GPIOH) || defined (GPIOI) || defined (GPIOJ) || defined (GPIOK)
  36
  37 /** @addtogroup GPIO_LL
  38   * @{
  39   */
  40
  41 /* Private types -------------------------------------------------------------*/
  42 /* Private variables ---------------------------------------------------------*/
  43 /* Private constants ---------------------------------------------------------*/
  44 /* Private macros ------------------------------------------------------------*/
  45 /** @addtogroup GPIO_LL_Private_Macros
  46   * @{
  47   */
  48 #define IS_LL_GPIO_PIN(__VALUE__)          (((0x00000000U) < (__VALUE__)) && ((__VALUE__) <= (LL_GPIO_PIN_ALL)))
  49
  50 #define IS_LL_GPIO_MODE(__VALUE__)         (((__VALUE__) == LL_GPIO_MODE_INPUT)     ||\
  51                                             ((__VALUE__) == LL_GPIO_MODE_OUTPUT)    ||\
  52                                             ((__VALUE__) == LL_GPIO_MODE_ALTERNATE) ||\
  53                                             ((__VALUE__) == LL_GPIO_MODE_ANALOG))
  54
  55 #define IS_LL_GPIO_OUTPUT_TYPE(__VALUE__)  (((__VALUE__) == LL_GPIO_OUTPUT_PUSHPULL)  ||\
  56                                             ((__VALUE__) == LL_GPIO_OUTPUT_OPENDRAIN))
  57
  58 #define IS_LL_GPIO_SPEED(__VALUE__)        (((__VALUE__) == LL_GPIO_SPEED_FREQ_LOW)       ||\
  59                                             ((__VALUE__) == LL_GPIO_SPEED_FREQ_MEDIUM)    ||\
  60                                             ((__VALUE__) == LL_GPIO_SPEED_FREQ_HIGH)      ||\
  61                                             ((__VALUE__) == LL_GPIO_SPEED_FREQ_VERY_HIGH))
  62
  63 #define IS_LL_GPIO_PULL(__VALUE__)         (((__VALUE__) == LL_GPIO_PULL_NO)   ||\
  64                                             ((__VALUE__) == LL_GPIO_PULL_UP)   ||\
  65                                             ((__VALUE__) == LL_GPIO_PULL_DOWN))
  66
  67 #define IS_LL_GPIO_ALTERNATE(__VALUE__)    (((__VALUE__) == LL_GPIO_AF_0  )   ||\
  68                                             ((__VALUE__) == LL_GPIO_AF_1  )   ||\
  69                                             ((__VALUE__) == LL_GPIO_AF_2  )   ||\
  70                                             ((__VALUE__) == LL_GPIO_AF_3  )   ||\
  71                                             ((__VALUE__) == LL_GPIO_AF_4  )   ||\
  72                                             ((__VALUE__) == LL_GPIO_AF_5  )   ||\
  73                                             ((__VALUE__) == LL_GPIO_AF_6  )   ||\
  74                                             ((__VALUE__) == LL_GPIO_AF_7  )   ||\
  75                                             ((__VALUE__) == LL_GPIO_AF_8  )   ||\
  76                                             ((__VALUE__) == LL_GPIO_AF_9  )   ||\
  77                                             ((__VALUE__) == LL_GPIO_AF_10 )   ||\
  78                                             ((__VALUE__) == LL_GPIO_AF_11 )   ||\
  79                                             ((__VALUE__) == LL_GPIO_AF_12 )   ||\
  80                                             ((__VALUE__) == LL_GPIO_AF_13 )   ||\
  81                                             ((__VALUE__) == LL_GPIO_AF_14 )   ||\
  82                                             ((__VALUE__) == LL_GPIO_AF_15 ))
  83 /**
  84   * @}
  85   */
  86
  87 /* Private function prototypes -----------------------------------------------*/
  88
  89 /* Exported functions --------------------------------------------------------*/
  90 /** @addtogroup GPIO_LL_Exported_Functions
  91   * @{
  92   */
  93
  94 /** @addtogroup GPIO_LL_EF_Init
  95   * @{
  96   */
  97
  98 /**
  99   * @brief  De-initialize GPIO registers (Registers restored to their default values).
 100   * @param  GPIOx GPIO Port
 101   * @retval An ErrorStatus enumeration value:
 102   *          - SUCCESS: GPIO registers are de-initialized
 103   *          - ERROR:   Wrong GPIO Port
 104   */
 105 ErrorStatus LL_GPIO_DeInit(GPIO_TypeDef *GPIOx)
 106 {
 107   ErrorStatus status = SUCCESS;
 108
 109   /* Check the parameters */
 110   assert_param(IS_GPIO_ALL_INSTANCE(GPIOx));
 111
 112   /* Force and Release reset on clock of GPIOx Port */
 113   if (GPIOx == GPIOA)
 114   {
 115     LL_AHB4_GRP1_ForceReset(LL_AHB4_GRP1_PERIPH_GPIOA);
 116     LL_AHB4_GRP1_ReleaseReset(LL_AHB4_GRP1_PERIPH_GPIOA);
 117   }
 118   else if (GPIOx == GPIOB)
 119   {
 120     LL_AHB4_GRP1_ForceReset(LL_AHB4_GRP1_PERIPH_GPIOB);
 121     LL_AHB4_GRP1_ReleaseReset(LL_AHB4_GRP1_PERIPH_GPIOB);
 122   }
 123   else if (GPIOx == GPIOC)
 124   {
 125     LL_AHB4_GRP1_ForceReset(LL_AHB4_GRP1_PERIPH_GPIOC);
 126     LL_AHB4_GRP1_ReleaseReset(LL_AHB4_GRP1_PERIPH_GPIOC);
 127   }
 128 #if defined(GPIOD)
 129   else if (GPIOx == GPIOD)
 130   {
 131     LL_AHB4_GRP1_ForceReset(LL_AHB4_GRP1_PERIPH_GPIOD);
 132     LL_AHB4_GRP1_ReleaseReset(LL_AHB4_GRP1_PERIPH_GPIOD);
 133   }
 134 #endif /* GPIOD */
 135 #if defined(GPIOE)
 136   else if (GPIOx == GPIOE)
 137   {
 138     LL_AHB4_GRP1_ForceReset(LL_AHB4_GRP1_PERIPH_GPIOE);
 139     LL_AHB4_GRP1_ReleaseReset(LL_AHB4_GRP1_PERIPH_GPIOE);
 140   }
 141 #endif /* GPIOE */
 142 #if defined(GPIOF)
 143   else if (GPIOx == GPIOF)
 144   {
 145     LL_AHB4_GRP1_ForceReset(LL_AHB4_GRP1_PERIPH_GPIOF);
 146     LL_AHB4_GRP1_ReleaseReset(LL_AHB4_GRP1_PERIPH_GPIOF);
 147   }
 148 #endif /* GPIOF */
 149 #if defined(GPIOG)
 150   else if (GPIOx == GPIOG)
 151   {
 152     LL_AHB4_GRP1_ForceReset(LL_AHB4_GRP1_PERIPH_GPIOG);
 153     LL_AHB4_GRP1_ReleaseReset(LL_AHB4_GRP1_PERIPH_GPIOG);
 154   }
 155 #endif /* GPIOG */
 156 #if defined(GPIOH)
 157   else if (GPIOx == GPIOH)
 158   {
 159     LL_AHB4_GRP1_ForceReset(LL_AHB4_GRP1_PERIPH_GPIOH);
 160     LL_AHB4_GRP1_ReleaseReset(LL_AHB4_GRP1_PERIPH_GPIOH);
 161   }
 162 #endif /* GPIOH */
 163 #if defined(GPIOI)
 164   else if (GPIOx == GPIOI)
 165   {
 166     LL_AHB4_GRP1_ForceReset(LL_AHB4_GRP1_PERIPH_GPIOI);
 167     LL_AHB4_GRP1_ReleaseReset(LL_AHB4_GRP1_PERIPH_GPIOI);
 168   }
 169 #endif /* GPIOI */
 170 #if defined(GPIOJ)
 171   else if (GPIOx == GPIOJ)
 172   {
 173     LL_AHB4_GRP1_ForceReset(LL_AHB4_GRP1_PERIPH_GPIOJ);
 174     LL_AHB4_GRP1_ReleaseReset(LL_AHB4_GRP1_PERIPH_GPIOJ);
 175   }
 176 #endif /* GPIOJ */
 177 #if defined(GPIOK)
 178   else if (GPIOx == GPIOK)
 179   {
 180     LL_AHB4_GRP1_ForceReset(LL_AHB4_GRP1_PERIPH_GPIOK);
 181     LL_AHB4_GRP1_ReleaseReset(LL_AHB4_GRP1_PERIPH_GPIOK);
 182   }
 183 #endif /* GPIOK */
 184   else
 185   {
 186     status = ERROR;
 187   }
 188
 189   return (status);
 190 }
 191
 192 /**
 193   * @brief  Initialize GPIO registers according to the specified parameters in GPIO_InitStruct.
 194   * @param  GPIOx GPIO Port
 195   * @param GPIO_InitStruct pointer to a @ref LL_GPIO_InitTypeDef structure
 196   *         that contains the configuration information for the specified GPIO peripheral.
 197   * @retval An ErrorStatus enumeration value:
 198   *          - SUCCESS: GPIO registers are initialized according to GPIO_InitStruct content
 199   *          - ERROR:   Not applicable
 200   */
 201 ErrorStatus LL_GPIO_Init(GPIO_TypeDef *GPIOx, LL_GPIO_InitTypeDef *GPIO_InitStruct)
 202 {
 203   uint32_t pinpos, currentpin;
 204
 205   /* Check the parameters */
 206   assert_param(IS_GPIO_ALL_INSTANCE(GPIOx));
 207   assert_param(IS_LL_GPIO_PIN(GPIO_InitStruct->Pin));
 208   assert_param(IS_LL_GPIO_MODE(GPIO_InitStruct->Mode));
 209   assert_param(IS_LL_GPIO_PULL(GPIO_InitStruct->Pull));
 210
 211   /* ------------------------- Configure the port pins ---------------- */
 212   /* Initialize  pinpos on first pin set */
 213   pinpos = POSITION_VAL(GPIO_InitStruct->Pin);
 214
 215   /* Configure the port pins */
 216   while (((GPIO_InitStruct->Pin) >> pinpos) != 0x00000000U)
 217   {
 218     /* Get current io position */
 219     currentpin = (GPIO_InitStruct->Pin) & (0x00000001UL << pinpos);
 220
 221     if (currentpin != 0x00000000U)
 222     {
 223
 224       if ((GPIO_InitStruct->Mode == LL_GPIO_MODE_OUTPUT) || (GPIO_InitStruct->Mode == LL_GPIO_MODE_ALTERNATE))
 225       {
 226         /* Check Speed mode parameters */
 227         assert_param(IS_LL_GPIO_SPEED(GPIO_InitStruct->Speed));
 228
 229         /* Speed mode configuration */
 230         LL_GPIO_SetPinSpeed(GPIOx, currentpin, GPIO_InitStruct->Speed);
 231
 232         /* Check Output mode parameters */
 233         assert_param(IS_LL_GPIO_OUTPUT_TYPE(GPIO_InitStruct->OutputType));
 234
 235         /* Output mode configuration*/
 236         LL_GPIO_SetPinOutputType(GPIOx, GPIO_InitStruct->Pin, GPIO_InitStruct->OutputType);
 237
 238       }
 239
 240       /* Pull-up Pull down resistor configuration*/
 241       LL_GPIO_SetPinPull(GPIOx, currentpin, GPIO_InitStruct->Pull);
 242
 243       if (GPIO_InitStruct->Mode == LL_GPIO_MODE_ALTERNATE)
 244       {
 245         /* Check Alternate parameter */
 246         assert_param(IS_LL_GPIO_ALTERNATE(GPIO_InitStruct->Alternate));
 247
 248         /* Alternate function configuration */
 249         if (currentpin < LL_GPIO_PIN_8)
 250         {
 251           LL_GPIO_SetAFPin_0_7(GPIOx, currentpin, GPIO_InitStruct->Alternate);
 252         }
 253         else
 254         {
 255           LL_GPIO_SetAFPin_8_15(GPIOx, currentpin, GPIO_InitStruct->Alternate);
 256         }
 257       }
 258
 259       /* Pin Mode configuration */
 260       LL_GPIO_SetPinMode(GPIOx, currentpin, GPIO_InitStruct->Mode);
 261     }
 262     pinpos++;
 263   }
 264
 265   return (SUCCESS);
 266 }
 267
 268 /**
 269   * @brief Set each @ref LL_GPIO_InitTypeDef field to default value.
 270   * @param GPIO_InitStruct pointer to a @ref LL_GPIO_InitTypeDef structure
 271   *                          whose fields will be set to default values.
 272   * @retval None
 273   */
 274
 275 void LL_GPIO_StructInit(LL_GPIO_InitTypeDef *GPIO_InitStruct)
 276 {
 277   /* Reset GPIO init structure parameters values */
 278   GPIO_InitStruct->Pin        = LL_GPIO_PIN_ALL;
 279   GPIO_InitStruct->Mode       = LL_GPIO_MODE_ANALOG;
 280   GPIO_InitStruct->Speed      = LL_GPIO_SPEED_FREQ_LOW;
 281   GPIO_InitStruct->OutputType = LL_GPIO_OUTPUT_PUSHPULL;
 282   GPIO_InitStruct->Pull       = LL_GPIO_PULL_NO;
 283   GPIO_InitStruct->Alternate  = LL_GPIO_AF_0;
 284 }
 285
 286 /**
 287   * @}
 288   */
 289
 290 /**
 291   * @}
 292   */
 293
 294 /**
 295   * @}
 296   */
 297
 298 #endif /* defined (GPIOA) || defined (GPIOB) || defined (GPIOC) || defined (GPIOD) || defined (GPIOE) || defined (GPIOF) || defined (GPIOG) || defined (GPIOH) || defined (GPIOI) || defined (GPIOJ) || defined (GPIOK) */
 299
 300 /**
 301   * @}
 302   */
 303
 304 #endif /* USE_FULL_LL_DRIVER */
 305
 306 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
 307