/**
******************************************************************************
* @file stm32f1xx_ll_gpio.c
* @author MCD Application Team
* @brief GPIO LL module driver.
******************************************************************************
* @attention
*
* <h2><center>© COPYRIGHT(c) 2016 STMicroelectronics</center></h2>
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************
*/
#if defined(USE_FULL_LL_DRIVER)
/* Includes ------------------------------------------------------------------*/
#include "stm32f1xx_ll_gpio.h"
#include "stm32f1xx_ll_bus.h"
#ifdef USE_FULL_ASSERT
#include "stm32_assert.h"
#else
#define assert_param(expr) ((void)0U)
#endif
/** @addtogroup STM32F1xx_LL_Driver
* @{
*/
#if defined (GPIOA) || defined (GPIOB) || defined (GPIOC) || defined (GPIOD) || defined (GPIOE) || defined (GPIOF) || defined (GPIOG)
/** @addtogroup GPIO_LL
* @{
*/
/* Private types -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private constants ---------------------------------------------------------*/
/* Private macros ------------------------------------------------------------*/
/** @addtogroup GPIO_LL_Private_Macros
* @{
*/
#define IS_LL_GPIO_PIN(__VALUE__) ((((__VALUE__) & LL_GPIO_PIN_ALL)!= 0U) &&\
(((__VALUE__) & (~LL_GPIO_PIN_ALL))== 0U))
#define IS_LL_GPIO_MODE(__VALUE__) (((__VALUE__) == LL_GPIO_MODE_ANALOG) ||\
((__VALUE__) == LL_GPIO_MODE_FLOATING) ||\
((__VALUE__) == LL_GPIO_MODE_INPUT) ||\
((__VALUE__) == LL_GPIO_MODE_OUTPUT) ||\
((__VALUE__) == LL_GPIO_MODE_ALTERNATE))
#define IS_LL_GPIO_SPEED(__VALUE__) (((__VALUE__) == LL_GPIO_SPEED_FREQ_LOW) ||\
((__VALUE__) == LL_GPIO_SPEED_FREQ_MEDIUM) ||\
((__VALUE__) == LL_GPIO_SPEED_FREQ_HIGH))
#define IS_LL_GPIO_OUTPUT_TYPE(__VALUE__) (((__VALUE__) == LL_GPIO_OUTPUT_PUSHPULL) ||\
((__VALUE__) == LL_GPIO_OUTPUT_OPENDRAIN))
#define IS_LL_GPIO_PULL(__VALUE__) (((__VALUE__) == LL_GPIO_PULL_DOWN) ||\
((__VALUE__) == LL_GPIO_PULL_UP))
/**
* @}
*/
/* 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_APB2_GRP1_ForceReset(LL_APB2_GRP1_PERIPH_GPIOA);
LL_APB2_GRP1_ReleaseReset(LL_APB2_GRP1_PERIPH_GPIOA);
}
else if (GPIOx == GPIOB)
{
LL_APB2_GRP1_ForceReset(LL_APB2_GRP1_PERIPH_GPIOB);
LL_APB2_GRP1_ReleaseReset(LL_APB2_GRP1_PERIPH_GPIOB);
}
else if (GPIOx == GPIOC)
{
LL_APB2_GRP1_ForceReset(LL_APB2_GRP1_PERIPH_GPIOC);
LL_APB2_GRP1_ReleaseReset(LL_APB2_GRP1_PERIPH_GPIOC);
}
else if (GPIOx == GPIOD)
{
LL_APB2_GRP1_ForceReset(LL_APB2_GRP1_PERIPH_GPIOD);
LL_APB2_GRP1_ReleaseReset(LL_APB2_GRP1_PERIPH_GPIOD);
}
#if defined(GPIOE)
else if (GPIOx == GPIOE)
{
LL_APB2_GRP1_ForceReset(LL_APB2_GRP1_PERIPH_GPIOE);
LL_APB2_GRP1_ReleaseReset(LL_APB2_GRP1_PERIPH_GPIOE);
}
#endif
#if defined(GPIOF)
else if (GPIOx == GPIOF)
{
LL_APB2_GRP1_ForceReset(LL_APB2_GRP1_PERIPH_GPIOF);
LL_APB2_GRP1_ReleaseReset(LL_APB2_GRP1_PERIPH_GPIOF);
}
#endif
#if defined(GPIOG)
else if (GPIOx == GPIOG)
{
LL_APB2_GRP1_ForceReset(LL_APB2_GRP1_PERIPH_GPIOG);
LL_APB2_GRP1_ReleaseReset(LL_APB2_GRP1_PERIPH_GPIOG);
}
#endif
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 pinmask;
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));
/* ------------------------- Configure the port pins ---------------- */
/* Initialize pinpos on first pin set */
pinmask = ((GPIO_InitStruct->Pin) << GPIO_PIN_MASK_POS) >> GPIO_PIN_NB;
pinpos = POSITION_VAL(pinmask);
/* Configure the port pins */
while ((pinmask >> pinpos) != 0U)
{
/* skip if bit is not set */
if ((pinmask & (1U << pinpos)) != 0U)
{
/* Get current io position */
if (pinpos < GPIO_PIN_MASK_POS)
{
currentpin = (0x00000101U << pinpos);
}
else
{
currentpin = ((0x00010001U << (pinpos - GPIO_PIN_MASK_POS)) | 0x04000000U);
}
/* Check Pin Mode and Pin Pull parameters */
assert_param(IS_LL_GPIO_MODE(GPIO_InitStruct->Mode));
assert_param(IS_LL_GPIO_PULL(GPIO_InitStruct->Pull));
/* Pin Mode configuration */
LL_GPIO_SetPinMode(GPIOx, currentpin, GPIO_InitStruct->Mode);
/* Pull-up Pull-down resistor configuration*/
LL_GPIO_SetPinPull(GPIOx, currentpin, GPIO_InitStruct->Pull);
if ((GPIO_InitStruct->Mode == LL_GPIO_MODE_OUTPUT) || (GPIO_InitStruct->Mode == LL_GPIO_MODE_ALTERNATE))
{
/* Check speed and Output mode parameters */
assert_param(IS_LL_GPIO_SPEED(GPIO_InitStruct->Speed));
assert_param(IS_LL_GPIO_OUTPUT_TYPE(GPIO_InitStruct->OutputType));
/* Speed mode configuration */
LL_GPIO_SetPinSpeed(GPIOx, currentpin, GPIO_InitStruct->Speed);
/* Output mode configuration*/
LL_GPIO_SetPinOutputType(GPIOx, currentpin, GPIO_InitStruct->OutputType);
}
}
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_FLOATING;
GPIO_InitStruct->Speed = LL_GPIO_SPEED_FREQ_LOW;
GPIO_InitStruct->OutputType = LL_GPIO_OUTPUT_OPENDRAIN;
GPIO_InitStruct->Pull = LL_GPIO_PULL_DOWN;
}
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
#endif /* defined (GPIOA) || defined (GPIOB) || defined (GPIOC) || defined (GPIOD) || defined (GPIOE) || defined (GPIOF) || defined (GPIOG) */
/**
* @}
*/
#endif /* USE_FULL_LL_DRIVER */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/