diff options
Diffstat (limited to 'Drivers/STM32U0xx_HAL_Driver/Src/stm32u0xx_ll_gpio.c')
| -rw-r--r-- | Drivers/STM32U0xx_HAL_Driver/Src/stm32u0xx_ll_gpio.c | 263 |
1 files changed, 263 insertions, 0 deletions
diff --git a/Drivers/STM32U0xx_HAL_Driver/Src/stm32u0xx_ll_gpio.c b/Drivers/STM32U0xx_HAL_Driver/Src/stm32u0xx_ll_gpio.c new file mode 100644 index 0000000..299defb --- /dev/null +++ b/Drivers/STM32U0xx_HAL_Driver/Src/stm32u0xx_ll_gpio.c @@ -0,0 +1,263 @@ +/** + ****************************************************************************** + * @file stm32u0xx_ll_gpio.c + * @author MCD Application Team + * @brief GPIO LL module driver. + ****************************************************************************** + * @attention + * + * Copyright (c) 2023 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. + * + ****************************************************************************** + */ +#if defined(USE_FULL_LL_DRIVER) + +/* Includes ------------------------------------------------------------------*/ +#include "stm32u0xx_ll_gpio.h" +#include "stm32u0xx_ll_bus.h" +#ifdef USE_FULL_ASSERT +#include "stm32_assert.h" +#else +#define assert_param(expr) ((void)0U) +#endif /* USE_FULL_ASSERT */ + +/** @addtogroup STM32U0xx_LL_Driver + * @{ + */ + +/** @addtogroup GPIO_LL + * @{ + */ +/** MISRA C:2012 deviation rule has been granted for following rules: + * Rule-12.2 - Medium: RHS argument is in interval [0,INF] which is out of + * range of the shift operator in following API : + * LL_GPIO_Init + */ + +/* Private types -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +/* Private constants ---------------------------------------------------------*/ +/* Private macros ------------------------------------------------------------*/ +/** @addtogroup GPIO_LL_Private_Macros + * @{ + */ +#define IS_LL_GPIO_PIN(__VALUE__) (((0x00u) < (__VALUE__)) && ((__VALUE__) <= (LL_GPIO_PIN_ALL))) + +#define IS_LL_GPIO_MODE(__VALUE__) (((__VALUE__) == LL_GPIO_MODE_INPUT) ||\ + ((__VALUE__) == LL_GPIO_MODE_OUTPUT) ||\ + ((__VALUE__) == LL_GPIO_MODE_ALTERNATE) ||\ + ((__VALUE__) == LL_GPIO_MODE_ANALOG)) + +#define IS_LL_GPIO_OUTPUT_TYPE(__VALUE__) (((__VALUE__) == LL_GPIO_OUTPUT_PUSHPULL) ||\ + ((__VALUE__) == LL_GPIO_OUTPUT_OPENDRAIN)) + +#define IS_LL_GPIO_SPEED(__VALUE__) (((__VALUE__) == LL_GPIO_SPEED_FREQ_LOW) ||\ + ((__VALUE__) == LL_GPIO_SPEED_FREQ_MEDIUM) ||\ + ((__VALUE__) == LL_GPIO_SPEED_FREQ_HIGH) ||\ + ((__VALUE__) == LL_GPIO_SPEED_FREQ_VERY_HIGH)) + +#define IS_LL_GPIO_PULL(__VALUE__) (((__VALUE__) == LL_GPIO_PULL_NO) ||\ + ((__VALUE__) == LL_GPIO_PULL_UP) ||\ + ((__VALUE__) == LL_GPIO_PULL_DOWN)) + +#define IS_LL_GPIO_ALTERNATE(__VALUE__) (((__VALUE__) == LL_GPIO_AF_0 ) ||\ + ((__VALUE__) == LL_GPIO_AF_1 ) ||\ + ((__VALUE__) == LL_GPIO_AF_2 ) ||\ + ((__VALUE__) == LL_GPIO_AF_3 ) ||\ + ((__VALUE__) == LL_GPIO_AF_4 ) ||\ + ((__VALUE__) == LL_GPIO_AF_5 ) ||\ + ((__VALUE__) == LL_GPIO_AF_6 ) ||\ + ((__VALUE__) == LL_GPIO_AF_7 ) ||\ + ((__VALUE__) == LL_GPIO_AF_8 ) ||\ + ((__VALUE__) == LL_GPIO_AF_9 ) ||\ + ((__VALUE__) == LL_GPIO_AF_10 ) ||\ + ((__VALUE__) == LL_GPIO_AF_11 ) ||\ + ((__VALUE__) == LL_GPIO_AF_12 ) ||\ + ((__VALUE__) == LL_GPIO_AF_13 ) ||\ + ((__VALUE__) == LL_GPIO_AF_14 ) ||\ + ((__VALUE__) == LL_GPIO_AF_15 )) +/** + * @} + */ + +/* Private function prototypes -----------------------------------------------*/ + +/* Exported functions --------------------------------------------------------*/ +/** @addtogroup GPIO_LL_Exported_Functions + * @{ + */ + +/** @addtogroup GPIO_LL_EF_Init + * @{ + */ + +/** + * @brief De-initialize GPIO registers (Registers restored to their default values). + * @param GPIOx GPIO Port + * @retval An ErrorStatus enumeration value: + * - SUCCESS: GPIO registers are de-initialized + * - ERROR: Wrong GPIO Port + */ +ErrorStatus LL_GPIO_DeInit(GPIO_TypeDef *GPIOx) +{ + ErrorStatus status = SUCCESS; + + /* Check the parameters */ + assert_param(IS_GPIO_ALL_INSTANCE(GPIOx)); + + /* Force and Release reset on clock of GPIOx Port */ + if (GPIOx == GPIOA) + { + LL_IOP_GRP1_ForceReset(LL_IOP_GRP1_PERIPH_GPIOA); + LL_IOP_GRP1_ReleaseReset(LL_IOP_GRP1_PERIPH_GPIOA); + } + else if (GPIOx == GPIOB) + { + LL_IOP_GRP1_ForceReset(LL_IOP_GRP1_PERIPH_GPIOB); + LL_IOP_GRP1_ReleaseReset(LL_IOP_GRP1_PERIPH_GPIOB); + } + else if (GPIOx == GPIOC) + { + LL_IOP_GRP1_ForceReset(LL_IOP_GRP1_PERIPH_GPIOC); + LL_IOP_GRP1_ReleaseReset(LL_IOP_GRP1_PERIPH_GPIOC); + } + else if (GPIOx == GPIOD) + { + LL_IOP_GRP1_ForceReset(LL_IOP_GRP1_PERIPH_GPIOD); + LL_IOP_GRP1_ReleaseReset(LL_IOP_GRP1_PERIPH_GPIOD); + } +#if defined (GPIOE) + else if (GPIOx == GPIOE) + { + LL_IOP_GRP1_ForceReset(LL_IOP_GRP1_PERIPH_GPIOE); + LL_IOP_GRP1_ReleaseReset(LL_IOP_GRP1_PERIPH_GPIOE); + } +#endif /* GPIOE */ + else if (GPIOx == GPIOF) + { + LL_IOP_GRP1_ForceReset(LL_IOP_GRP1_PERIPH_GPIOF); + LL_IOP_GRP1_ReleaseReset(LL_IOP_GRP1_PERIPH_GPIOF); + } + else + { + status = ERROR; + } + + return (status); +} + +/** + * @brief Initialize GPIO registers according to the specified parameters in GPIO_InitStruct. + * @param GPIOx GPIO Port + * @param GPIO_InitStruct pointer to a @ref LL_GPIO_InitTypeDef structure + * that contains the configuration information for the specified GPIO peripheral. + * @retval An ErrorStatus enumeration value: + * - SUCCESS: GPIO registers are initialized according to GPIO_InitStruct content + * - ERROR: Not applicable + */ +ErrorStatus LL_GPIO_Init(GPIO_TypeDef *GPIOx, LL_GPIO_InitTypeDef *GPIO_InitStruct) +{ + uint32_t pinpos; + uint32_t currentpin; + + /* Check the parameters */ + assert_param(IS_GPIO_ALL_INSTANCE(GPIOx)); + assert_param(IS_LL_GPIO_PIN(GPIO_InitStruct->Pin)); + assert_param(IS_LL_GPIO_MODE(GPIO_InitStruct->Mode)); + assert_param(IS_LL_GPIO_PULL(GPIO_InitStruct->Pull)); + + /* ------------------------- Configure the port pins ---------------- */ + /* Initialize pinpos on first pin set */ + pinpos = 0; + + /* Configure the port pins */ + while (((GPIO_InitStruct->Pin) >> pinpos) != 0x00u) + { + /* Get current io position */ + currentpin = (GPIO_InitStruct->Pin) & (0x00000001uL << pinpos); + + if (currentpin != 0x00u) + { + if ((GPIO_InitStruct->Mode == LL_GPIO_MODE_OUTPUT) || (GPIO_InitStruct->Mode == LL_GPIO_MODE_ALTERNATE)) + { + /* Check Speed mode parameters */ + assert_param(IS_LL_GPIO_SPEED(GPIO_InitStruct->Speed)); + + /* Speed mode configuration */ + LL_GPIO_SetPinSpeed(GPIOx, currentpin, GPIO_InitStruct->Speed); + + /* Check Output mode parameters */ + assert_param(IS_LL_GPIO_OUTPUT_TYPE(GPIO_InitStruct->OutputType)); + + /* Output mode configuration*/ + LL_GPIO_SetPinOutputType(GPIOx, currentpin, GPIO_InitStruct->OutputType); + } + + /* Pull-up Pull down resistor configuration*/ + LL_GPIO_SetPinPull(GPIOx, currentpin, GPIO_InitStruct->Pull); + + if (GPIO_InitStruct->Mode == LL_GPIO_MODE_ALTERNATE) + { + /* Check Alternate parameter */ + assert_param(IS_LL_GPIO_ALTERNATE(GPIO_InitStruct->Alternate)); + + /* Speed mode configuration */ + if (currentpin < LL_GPIO_PIN_8) + { + LL_GPIO_SetAFPin_0_7(GPIOx, currentpin, GPIO_InitStruct->Alternate); + } + else + { + LL_GPIO_SetAFPin_8_15(GPIOx, currentpin, GPIO_InitStruct->Alternate); + } + } + + /* Pin Mode configuration */ + LL_GPIO_SetPinMode(GPIOx, currentpin, GPIO_InitStruct->Mode); + } + pinpos++; + } + + return (SUCCESS); +} + +/** + * @brief Set each @ref LL_GPIO_InitTypeDef field to default value. + * @param GPIO_InitStruct pointer to a @ref LL_GPIO_InitTypeDef structure + * whose fields will be set to default values. + * @retval None + */ + +void LL_GPIO_StructInit(LL_GPIO_InitTypeDef *GPIO_InitStruct) +{ + /* Reset GPIO init structure parameters values */ + GPIO_InitStruct->Pin = LL_GPIO_PIN_ALL; + GPIO_InitStruct->Mode = LL_GPIO_MODE_ANALOG; + GPIO_InitStruct->Speed = LL_GPIO_SPEED_FREQ_LOW; + GPIO_InitStruct->OutputType = LL_GPIO_OUTPUT_PUSHPULL; + GPIO_InitStruct->Pull = LL_GPIO_PULL_NO; + GPIO_InitStruct->Alternate = LL_GPIO_AF_0; +} + +/** + * @} + */ + +/** + * @} + */ + +/** + * @} + */ + +/** + * @} + */ + +#endif /* USE_FULL_LL_DRIVER */ |