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Diffstat (limited to 'c/src/lib/libbsp/arm/stm32f4x/hal/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_gpio.c')
| -rw-r--r-- | c/src/lib/libbsp/arm/stm32f4x/hal/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_gpio.c | 545 |
1 files changed, 0 insertions, 545 deletions
diff --git a/c/src/lib/libbsp/arm/stm32f4x/hal/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_gpio.c b/c/src/lib/libbsp/arm/stm32f4x/hal/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_gpio.c deleted file mode 100644 index 7098f57be6..0000000000 --- a/c/src/lib/libbsp/arm/stm32f4x/hal/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_gpio.c +++ /dev/null @@ -1,545 +0,0 @@ -/** - ****************************************************************************** - * @file stm32f4xx_hal_gpio.c - * @author MCD Application Team - * @version V1.4.0 - * @date 14-August-2015 - * @brief GPIO HAL module driver. - * This file provides firmware functions to manage the following - * functionalities of the General Purpose Input/Output (GPIO) peripheral: - * + Initialization and de-initialization functions - * + IO operation functions - * - @verbatim - ============================================================================== - ##### GPIO Peripheral features ##### - ============================================================================== - [..] - Subject to the specific hardware characteristics of each I/O port listed in the datasheet, each - port bit of the General Purpose IO (GPIO) Ports, can be individually configured by software - in several modes: - (+) Input mode - (+) Analog mode - (+) Output mode - (+) Alternate function mode - (+) External interrupt/event lines - - [..] - During and just after reset, the alternate functions and external interrupt - lines are not active and the I/O ports are configured in input floating mode. - - [..] - All GPIO pins have weak internal pull-up and pull-down resistors, which can be - activated or not. - - [..] - In Output or Alternate mode, each IO can be configured on open-drain or push-pull - type and the IO speed can be selected depending on the VDD value. - - [..] - All ports have external interrupt/event capability. To use external interrupt - lines, the port must be configured in input mode. All available GPIO pins are - connected to the 16 external interrupt/event lines from EXTI0 to EXTI15. - - [..] - The external interrupt/event controller consists of up to 23 edge detectors - (16 lines are connected to GPIO) for generating event/interrupt requests (each - input line can be independently configured to select the type (interrupt or event) - and the corresponding trigger event (rising or falling or both). Each line can - also be masked independently. - - ##### How to use this driver ##### - ============================================================================== - [..] - (#) Enable the GPIO AHB clock using the following function: __HAL_RCC_GPIOx_CLK_ENABLE(). - - (#) Configure the GPIO pin(s) using HAL_GPIO_Init(). - (++) Configure the IO mode using "Mode" member from GPIO_InitTypeDef structure - (++) Activate Pull-up, Pull-down resistor using "Pull" member from GPIO_InitTypeDef - structure. - (++) In case of Output or alternate function mode selection: the speed is - configured through "Speed" member from GPIO_InitTypeDef structure. - (++) In alternate mode is selection, the alternate function connected to the IO - is configured through "Alternate" member from GPIO_InitTypeDef structure. - (++) Analog mode is required when a pin is to be used as ADC channel - or DAC output. - (++) In case of external interrupt/event selection the "Mode" member from - GPIO_InitTypeDef structure select the type (interrupt or event) and - the corresponding trigger event (rising or falling or both). - - (#) In case of external interrupt/event mode selection, configure NVIC IRQ priority - mapped to the EXTI line using HAL_NVIC_SetPriority() and enable it using - HAL_NVIC_EnableIRQ(). - - (#) To get the level of a pin configured in input mode use HAL_GPIO_ReadPin(). - - (#) To set/reset the level of a pin configured in output mode use - HAL_GPIO_WritePin()/HAL_GPIO_TogglePin(). - - (#) To lock pin configuration until next reset use HAL_GPIO_LockPin(). - - - (#) During and just after reset, the alternate functions are not - active and the GPIO pins are configured in input floating mode (except JTAG - pins). - - (#) The LSE oscillator pins OSC32_IN and OSC32_OUT can be used as general purpose - (PC14 and PC15, respectively) when the LSE oscillator is off. The LSE has - priority over the GPIO function. - - (#) The HSE oscillator pins OSC_IN/OSC_OUT can be used as - general purpose PH0 and PH1, respectively, when the HSE oscillator is off. - The HSE has priority over the GPIO function. - - @endverbatim - ****************************************************************************** - * @attention - * - * <h2><center>© COPYRIGHT(c) 2015 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. - * - ****************************************************************************** - */ - -/* Includes ------------------------------------------------------------------*/ -#include "stm32f4xx_hal.h" - -/** @addtogroup STM32F4xx_HAL_Driver - * @{ - */ - -/** @defgroup GPIO GPIO - * @brief GPIO HAL module driver - * @{ - */ - -#ifdef HAL_GPIO_MODULE_ENABLED - -/* Private typedef -----------------------------------------------------------*/ -/* Private define ------------------------------------------------------------*/ -/** @addtogroup GPIO_Private_Constants GPIO Private Constants - * @{ - */ -#define GPIO_MODE ((uint32_t)0x00000003) -#define EXTI_MODE ((uint32_t)0x10000000) -#define GPIO_MODE_IT ((uint32_t)0x00010000) -#define GPIO_MODE_EVT ((uint32_t)0x00020000) -#define RISING_EDGE ((uint32_t)0x00100000) -#define FALLING_EDGE ((uint32_t)0x00200000) -#define GPIO_OUTPUT_TYPE ((uint32_t)0x00000010) - -#define GPIO_NUMBER ((uint32_t)16) -/** - * @} - */ -/* Private macro -------------------------------------------------------------*/ -/* Private variables ---------------------------------------------------------*/ -/* Private function prototypes -----------------------------------------------*/ -/* Private functions ---------------------------------------------------------*/ -/* Exported functions --------------------------------------------------------*/ -/** @defgroup GPIO_Exported_Functions GPIO Exported Functions - * @{ - */ - -/** @defgroup GPIO_Exported_Functions_Group1 Initialization and de-initialization functions - * @brief Initialization and Configuration functions - * -@verbatim - =============================================================================== - ##### Initialization and de-initialization functions ##### - =============================================================================== - [..] - This section provides functions allowing to initialize and de-initialize the GPIOs - to be ready for use. - -@endverbatim - * @{ - */ - - -/** - * @brief Initializes the GPIOx peripheral according to the specified parameters in the GPIO_Init. - * @param GPIOx: where x can be (A..K) to select the GPIO peripheral for STM32F429X device or - * x can be (A..I) to select the GPIO peripheral for STM32F40XX and STM32F427X devices. - * @param GPIO_Init: pointer to a GPIO_InitTypeDef structure that contains - * the configuration information for the specified GPIO peripheral. - * @retval None - */ -void HAL_GPIO_Init(GPIO_TypeDef *GPIOx, GPIO_InitTypeDef *GPIO_Init) -{ - uint32_t position; - uint32_t ioposition = 0x00; - uint32_t iocurrent = 0x00; - uint32_t temp = 0x00; - - /* Check the parameters */ - assert_param(IS_GPIO_ALL_INSTANCE(GPIOx)); - assert_param(IS_GPIO_PIN(GPIO_Init->Pin)); - assert_param(IS_GPIO_MODE(GPIO_Init->Mode)); - assert_param(IS_GPIO_PULL(GPIO_Init->Pull)); - - /* Configure the port pins */ - for(position = 0; position < GPIO_NUMBER; position++) - { - /* Get the IO position */ - ioposition = ((uint32_t)0x01) << position; - /* Get the current IO position */ - iocurrent = (uint32_t)(GPIO_Init->Pin) & ioposition; - - if(iocurrent == ioposition) - { - /*--------------------- GPIO Mode Configuration ------------------------*/ - /* In case of Alternate function mode selection */ - if((GPIO_Init->Mode == GPIO_MODE_AF_PP) || (GPIO_Init->Mode == GPIO_MODE_AF_OD)) - { - /* Check the Alternate function parameter */ - assert_param(IS_GPIO_AF(GPIO_Init->Alternate)); - /* Configure Alternate function mapped with the current IO */ - temp = GPIOx->AFR[position >> 3]; - temp &= ~((uint32_t)0xF << ((uint32_t)(position & (uint32_t)0x07) * 4)) ; - temp |= ((uint32_t)(GPIO_Init->Alternate) << (((uint32_t)position & (uint32_t)0x07) * 4)); - GPIOx->AFR[position >> 3] = temp; - } - - /* Configure IO Direction mode (Input, Output, Alternate or Analog) */ - temp = GPIOx->MODER; - temp &= ~(GPIO_MODER_MODER0 << (position * 2)); - temp |= ((GPIO_Init->Mode & GPIO_MODE) << (position * 2)); - GPIOx->MODER = temp; - - /* In case of Output or Alternate function mode selection */ - if((GPIO_Init->Mode == GPIO_MODE_OUTPUT_PP) || (GPIO_Init->Mode == GPIO_MODE_AF_PP) || - (GPIO_Init->Mode == GPIO_MODE_OUTPUT_OD) || (GPIO_Init->Mode == GPIO_MODE_AF_OD)) - { - /* Check the Speed parameter */ - assert_param(IS_GPIO_SPEED(GPIO_Init->Speed)); - /* Configure the IO Speed */ - temp = GPIOx->OSPEEDR; - temp &= ~(GPIO_OSPEEDER_OSPEEDR0 << (position * 2)); - temp |= (GPIO_Init->Speed << (position * 2)); - GPIOx->OSPEEDR = temp; - - /* Configure the IO Output Type */ - temp = GPIOx->OTYPER; - temp &= ~(GPIO_OTYPER_OT_0 << position) ; - temp |= (((GPIO_Init->Mode & GPIO_OUTPUT_TYPE) >> 4) << position); - GPIOx->OTYPER = temp; - } - - /* Activate the Pull-up or Pull down resistor for the current IO */ - temp = GPIOx->PUPDR; - temp &= ~(GPIO_PUPDR_PUPDR0 << (position * 2)); - temp |= ((GPIO_Init->Pull) << (position * 2)); - GPIOx->PUPDR = temp; - - /*--------------------- EXTI Mode Configuration ------------------------*/ - /* Configure the External Interrupt or event for the current IO */ - if((GPIO_Init->Mode & EXTI_MODE) == EXTI_MODE) - { - /* Enable SYSCFG Clock */ - __HAL_RCC_SYSCFG_CLK_ENABLE(); - - temp = SYSCFG->EXTICR[position >> 2]; - temp &= ~(((uint32_t)0x0F) << (4 * (position & 0x03))); - temp |= ((uint32_t)(GPIO_GET_INDEX(GPIOx)) << (4 * (position & 0x03))); - SYSCFG->EXTICR[position >> 2] = temp; - - /* Clear EXTI line configuration */ - temp = EXTI->IMR; - temp &= ~((uint32_t)iocurrent); - if((GPIO_Init->Mode & GPIO_MODE_IT) == GPIO_MODE_IT) - { - temp |= iocurrent; - } - EXTI->IMR = temp; - - temp = EXTI->EMR; - temp &= ~((uint32_t)iocurrent); - if((GPIO_Init->Mode & GPIO_MODE_EVT) == GPIO_MODE_EVT) - { - temp |= iocurrent; - } - EXTI->EMR = temp; - - /* Clear Rising Falling edge configuration */ - temp = EXTI->RTSR; - temp &= ~((uint32_t)iocurrent); - if((GPIO_Init->Mode & RISING_EDGE) == RISING_EDGE) - { - temp |= iocurrent; - } - EXTI->RTSR = temp; - - temp = EXTI->FTSR; - temp &= ~((uint32_t)iocurrent); - if((GPIO_Init->Mode & FALLING_EDGE) == FALLING_EDGE) - { - temp |= iocurrent; - } - EXTI->FTSR = temp; - } - } - } -} - -/** - * @brief De-initializes the GPIOx peripheral registers to their default reset values. - * @param GPIOx: where x can be (A..K) to select the GPIO peripheral for STM32F429X device or - * x can be (A..I) to select the GPIO peripheral for STM32F40XX and STM32F427X devices. - * @param GPIO_Pin: specifies the port bit to be written. - * This parameter can be one of GPIO_PIN_x where x can be (0..15). - * @retval None - */ -void HAL_GPIO_DeInit(GPIO_TypeDef *GPIOx, uint32_t GPIO_Pin) -{ - uint32_t position; - uint32_t ioposition = 0x00; - uint32_t iocurrent = 0x00; - uint32_t tmp = 0x00; - - /* Check the parameters */ - assert_param(IS_GPIO_ALL_INSTANCE(GPIOx)); - - /* Configure the port pins */ - for(position = 0; position < GPIO_NUMBER; position++) - { - /* Get the IO position */ - ioposition = ((uint32_t)0x01) << position; - /* Get the current IO position */ - iocurrent = (GPIO_Pin) & ioposition; - - if(iocurrent == ioposition) - { - /*------------------------- GPIO Mode Configuration --------------------*/ - /* Configure IO Direction in Input Floating Mode */ - GPIOx->MODER &= ~(GPIO_MODER_MODER0 << (position * 2)); - - /* Configure the default Alternate Function in current IO */ - GPIOx->AFR[position >> 3] &= ~((uint32_t)0xF << ((uint32_t)(position & (uint32_t)0x07) * 4)) ; - - /* Configure the default value for IO Speed */ - GPIOx->OSPEEDR &= ~(GPIO_OSPEEDER_OSPEEDR0 << (position * 2)); - - /* Configure the default value IO Output Type */ - GPIOx->OTYPER &= ~(GPIO_OTYPER_OT_0 << position) ; - - /* Deactivate the Pull-up and Pull-down resistor for the current IO */ - GPIOx->PUPDR &= ~(GPIO_PUPDR_PUPDR0 << (position * 2)); - - /*------------------------- EXTI Mode Configuration --------------------*/ - tmp = SYSCFG->EXTICR[position >> 2]; - tmp &= (((uint32_t)0x0F) << (4 * (position & 0x03))); - if(tmp == ((uint32_t)(GPIO_GET_INDEX(GPIOx)) << (4 * (position & 0x03)))) - { - /* Configure the External Interrupt or event for the current IO */ - tmp = ((uint32_t)0x0F) << (4 * (position & 0x03)); - SYSCFG->EXTICR[position >> 2] &= ~tmp; - - /* Clear EXTI line configuration */ - EXTI->IMR &= ~((uint32_t)iocurrent); - EXTI->EMR &= ~((uint32_t)iocurrent); - - /* Clear Rising Falling edge configuration */ - EXTI->RTSR &= ~((uint32_t)iocurrent); - EXTI->FTSR &= ~((uint32_t)iocurrent); - } - } - } -} - -/** - * @} - */ - -/** @defgroup GPIO_Exported_Functions_Group2 IO operation functions - * @brief GPIO Read and Write - * -@verbatim - =============================================================================== - ##### IO operation functions ##### - =============================================================================== - -@endverbatim - * @{ - */ - -/** - * @brief Reads the specified input port pin. - * @param GPIOx: where x can be (A..K) to select the GPIO peripheral for STM32F429X device or - * x can be (A..I) to select the GPIO peripheral for STM32F40XX and STM32F427X devices. - * @param GPIO_Pin: specifies the port bit to read. - * This parameter can be GPIO_PIN_x where x can be (0..15). - * @retval The input port pin value. - */ -GPIO_PinState HAL_GPIO_ReadPin(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin) -{ - GPIO_PinState bitstatus; - - /* Check the parameters */ - assert_param(IS_GPIO_PIN(GPIO_Pin)); - - if((GPIOx->IDR & GPIO_Pin) != (uint32_t)GPIO_PIN_RESET) - { - bitstatus = GPIO_PIN_SET; - } - else - { - bitstatus = GPIO_PIN_RESET; - } - return bitstatus; -} - -/** - * @brief Sets or clears the selected data port bit. - * - * @note This function uses GPIOx_BSRR register to allow atomic read/modify - * accesses. In this way, there is no risk of an IRQ occurring between - * the read and the modify access. - * - * @param GPIOx: where x can be (A..K) to select the GPIO peripheral for STM32F429X device or - * x can be (A..I) to select the GPIO peripheral for STM32F40XX and STM32F427X devices. - * @param GPIO_Pin: specifies the port bit to be written. - * This parameter can be one of GPIO_PIN_x where x can be (0..15). - * @param PinState: specifies the value to be written to the selected bit. - * This parameter can be one of the GPIO_PinState enum values: - * @arg GPIO_PIN_RESET: to clear the port pin - * @arg GPIO_PIN_SET: to set the port pin - * @retval None - */ -void HAL_GPIO_WritePin(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin, GPIO_PinState PinState) -{ - /* Check the parameters */ - assert_param(IS_GPIO_PIN(GPIO_Pin)); - assert_param(IS_GPIO_PIN_ACTION(PinState)); - - if(PinState != GPIO_PIN_RESET) - { - GPIOx->BSRR = GPIO_Pin; - } - else - { - GPIOx->BSRR = (uint32_t)GPIO_Pin << 16; - } -} - -/** - * @brief Toggles the specified GPIO pins. - * @param GPIOx: Where x can be (A..K) to select the GPIO peripheral for STM32F429X device or - * x can be (A..I) to select the GPIO peripheral for STM32F40XX and STM32F427X devices. - * @param GPIO_Pin: Specifies the pins to be toggled. - * @retval None - */ -void HAL_GPIO_TogglePin(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin) -{ - /* Check the parameters */ - assert_param(IS_GPIO_PIN(GPIO_Pin)); - - GPIOx->ODR ^= GPIO_Pin; -} - -/** - * @brief Locks GPIO Pins configuration registers. - * @note The locked registers are GPIOx_MODER, GPIOx_OTYPER, GPIOx_OSPEEDR, - * GPIOx_PUPDR, GPIOx_AFRL and GPIOx_AFRH. - * @note The configuration of the locked GPIO pins can no longer be modified - * until the next reset. - * @param GPIOx: where x can be (A..F) to select the GPIO peripheral for STM32F4 family - * @param GPIO_Pin: specifies the port bit to be locked. - * This parameter can be any combination of GPIO_PIN_x where x can be (0..15). - * @retval None - */ -HAL_StatusTypeDef HAL_GPIO_LockPin(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin) -{ - __IO uint32_t tmp = GPIO_LCKR_LCKK; - - /* Check the parameters */ - assert_param(IS_GPIO_PIN(GPIO_Pin)); - - /* Apply lock key write sequence */ - tmp |= GPIO_Pin; - /* Set LCKx bit(s): LCKK='1' + LCK[15-0] */ - GPIOx->LCKR = tmp; - /* Reset LCKx bit(s): LCKK='0' + LCK[15-0] */ - GPIOx->LCKR = GPIO_Pin; - /* Set LCKx bit(s): LCKK='1' + LCK[15-0] */ - GPIOx->LCKR = tmp; - /* Read LCKK bit*/ - tmp = GPIOx->LCKR; - - if((GPIOx->LCKR & GPIO_LCKR_LCKK) != RESET) - { - return HAL_OK; - } - else - { - return HAL_ERROR; - } -} - -/** - * @brief This function handles EXTI interrupt request. - * @param GPIO_Pin: Specifies the pins connected EXTI line - * @retval None - */ -void HAL_GPIO_EXTI_IRQHandler(uint16_t GPIO_Pin) -{ - /* EXTI line interrupt detected */ - if(__HAL_GPIO_EXTI_GET_IT(GPIO_Pin) != RESET) - { - __HAL_GPIO_EXTI_CLEAR_IT(GPIO_Pin); - HAL_GPIO_EXTI_Callback(GPIO_Pin); - } -} - -/** - * @brief EXTI line detection callbacks. - * @param GPIO_Pin: Specifies the pins connected EXTI line - * @retval None - */ -__weak void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin) -{ - /* NOTE: This function Should not be modified, when the callback is needed, - the HAL_GPIO_EXTI_Callback could be implemented in the user file - */ -} - -/** - * @} - */ - - -/** - * @} - */ - -#endif /* HAL_GPIO_MODULE_ENABLED */ -/** - * @} - */ - -/** - * @} - */ - -/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |