294 lines
10 KiB
C
294 lines
10 KiB
C
/**
|
|
******************************************************************************
|
|
* @file stm32l4xx_ll_gpio.c
|
|
* @author MCD Application Team
|
|
* @brief GPIO LL module driver.
|
|
******************************************************************************
|
|
* @attention
|
|
*
|
|
* Copyright (c) 2017 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 "stm32l4xx_ll_gpio.h"
|
|
#include "stm32l4xx_ll_bus.h"
|
|
#ifdef USE_FULL_ASSERT
|
|
#include "stm32_assert.h"
|
|
#else
|
|
#define assert_param(expr) ((void)0U)
|
|
#endif
|
|
|
|
/** @addtogroup STM32L4xx_LL_Driver
|
|
* @{
|
|
*/
|
|
|
|
#if defined (GPIOA) || defined (GPIOB) || defined (GPIOC) || defined (GPIOD) || defined (GPIOE) || defined (GPIOF) || defined (GPIOG) || defined (GPIOH) || defined (GPIOI)
|
|
|
|
/** @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_AHB2_GRP1_ForceReset(LL_AHB2_GRP1_PERIPH_GPIOA);
|
|
LL_AHB2_GRP1_ReleaseReset(LL_AHB2_GRP1_PERIPH_GPIOA);
|
|
}
|
|
else if (GPIOx == GPIOB)
|
|
{
|
|
LL_AHB2_GRP1_ForceReset(LL_AHB2_GRP1_PERIPH_GPIOB);
|
|
LL_AHB2_GRP1_ReleaseReset(LL_AHB2_GRP1_PERIPH_GPIOB);
|
|
}
|
|
else if (GPIOx == GPIOC)
|
|
{
|
|
LL_AHB2_GRP1_ForceReset(LL_AHB2_GRP1_PERIPH_GPIOC);
|
|
LL_AHB2_GRP1_ReleaseReset(LL_AHB2_GRP1_PERIPH_GPIOC);
|
|
}
|
|
#if defined(GPIOD)
|
|
else if (GPIOx == GPIOD)
|
|
{
|
|
LL_AHB2_GRP1_ForceReset(LL_AHB2_GRP1_PERIPH_GPIOD);
|
|
LL_AHB2_GRP1_ReleaseReset(LL_AHB2_GRP1_PERIPH_GPIOD);
|
|
}
|
|
#endif /* GPIOD */
|
|
#if defined(GPIOE)
|
|
else if (GPIOx == GPIOE)
|
|
{
|
|
LL_AHB2_GRP1_ForceReset(LL_AHB2_GRP1_PERIPH_GPIOE);
|
|
LL_AHB2_GRP1_ReleaseReset(LL_AHB2_GRP1_PERIPH_GPIOE);
|
|
}
|
|
#endif /* GPIOE */
|
|
#if defined(GPIOF)
|
|
else if (GPIOx == GPIOF)
|
|
{
|
|
LL_AHB2_GRP1_ForceReset(LL_AHB2_GRP1_PERIPH_GPIOF);
|
|
LL_AHB2_GRP1_ReleaseReset(LL_AHB2_GRP1_PERIPH_GPIOF);
|
|
}
|
|
#endif /* GPIOF */
|
|
#if defined(GPIOG)
|
|
else if (GPIOx == GPIOG)
|
|
{
|
|
LL_AHB2_GRP1_ForceReset(LL_AHB2_GRP1_PERIPH_GPIOG);
|
|
LL_AHB2_GRP1_ReleaseReset(LL_AHB2_GRP1_PERIPH_GPIOG);
|
|
}
|
|
#endif /* GPIOG */
|
|
#if defined(GPIOH)
|
|
else if (GPIOx == GPIOH)
|
|
{
|
|
LL_AHB2_GRP1_ForceReset(LL_AHB2_GRP1_PERIPH_GPIOH);
|
|
LL_AHB2_GRP1_ReleaseReset(LL_AHB2_GRP1_PERIPH_GPIOH);
|
|
}
|
|
#endif /* GPIOH */
|
|
#if defined(GPIOI)
|
|
else if (GPIOx == GPIOI)
|
|
{
|
|
LL_AHB2_GRP1_ForceReset(LL_AHB2_GRP1_PERIPH_GPIOI);
|
|
LL_AHB2_GRP1_ReleaseReset(LL_AHB2_GRP1_PERIPH_GPIOI);
|
|
}
|
|
#endif /* GPIOI */
|
|
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 = POSITION_VAL(GPIO_InitStruct->Pin);
|
|
|
|
/* 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, GPIO_InitStruct->Pin, 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 /* defined (GPIOA) || defined (GPIOB) || defined (GPIOC) || defined (GPIOD) || defined (GPIOE) || defined (GPIOF) || defined (GPIOG) || defined (GPIOH) || defined (GPIOI) */
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
#endif /* USE_FULL_LL_DRIVER */
|
|
|