/** | |
****************************************************************************** | |
* @file stm32f1xx_ll_gpio.c | |
* @author MCD Application Team | |
* @version V1.1.1 | |
* @date 12-May-2017 | |
* @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__) ((((uint32_t)0x00000000U) < (__VALUE__)) && ((__VALUE__) <= (LL_GPIO_PIN_ALL))) | |
#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 pinpos = 0x00000000U; | |
uint32_t currentpin = 0x00000000U; | |
/* 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) & 0x0000FFFFU) >> pinpos) != 0x00000000U) | |
{ | |
/* Get current io position */ | |
if(pinpos <8 ) | |
{ | |
currentpin = (GPIO_InitStruct->Pin) & (0x00000101U << pinpos); | |
} | |
else | |
{ | |
currentpin = (GPIO_InitStruct->Pin) & ((0x00010001U << (pinpos-8)) | 0x04000000U); | |
} | |
if (currentpin) | |
{ | |
/* 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_FLOATING)) | |
{ | |
/* Speed mode configuration */ | |
LL_GPIO_SetPinSpeed(GPIOx, currentpin, GPIO_InitStruct->Speed); | |
} | |
} | |
pinpos++; | |
} | |
if ((GPIO_InitStruct->Mode == LL_GPIO_MODE_OUTPUT) || (GPIO_InitStruct->Mode == LL_GPIO_MODE_FLOATING)) | |
{ | |
/* 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); | |
} | |
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 = 0x00000000U; | |
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****/ | |