diff options
Diffstat (limited to 'fw/midi-dials/Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_gpio.c')
| -rw-r--r-- | fw/midi-dials/Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_gpio.c | 543 |
1 files changed, 543 insertions, 0 deletions
diff --git a/fw/midi-dials/Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_gpio.c b/fw/midi-dials/Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_gpio.c new file mode 100644 index 0000000..6faa77a --- /dev/null +++ b/fw/midi-dials/Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_gpio.c @@ -0,0 +1,543 @@ +/**
+ ******************************************************************************
+ * @file stm32f0xx_hal_gpio.c
+ * @author MCD Application Team
+ * @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 #####
+ ==============================================================================
+ [..]
+ (+) Each port bit of the general-purpose I/O (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.
+
+ (+) The microcontroller IO pins are connected to onboard peripherals/modules through a
+ multiplexer that allows only one peripheral alternate function (AF) connected
+ to an IO pin at a time. In this way, there can be no conflict between peripherals
+ sharing the same IO pin.
+
+ (+) 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 28 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().
+
+ (#) HAL_GPIO_DeInit allows to set register values to their reset value. It's also
+ recommended to use it to unconfigure pin which was used as an external interrupt
+ or in event mode. That's the only way to reset corresponding bit in EXTI & SYSCFG
+ registers.
+
+ (#) 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 PF0 and PF1, respectively, when the HSE oscillator is off.
+ The HSE has priority over the GPIO function.
+
+ @endverbatim
+ ******************************************************************************
+ * @attention
+ *
+ * <h2><center>© Copyright (c) 2016 STMicroelectronics.
+ * All rights reserved.</center></h2>
+ *
+ * This software component is licensed by ST under BSD 3-Clause license,
+ * the "License"; You may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at:
+ * opensource.org/licenses/BSD-3-Clause
+ *
+ ******************************************************************************
+ */
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32f0xx_hal.h"
+
+/** @addtogroup STM32F0xx_HAL_Driver
+ * @{
+ */
+
+/** @defgroup GPIO GPIO
+ * @brief GPIO HAL module driver
+ * @{
+ */
+
+/** MISRA C:2012 deviation rule has been granted for following rules:
+ * Rule-18.1_d - Medium: Array pointer `GPIOx' is accessed with index [..,..]
+ * which may be out of array bounds [..,UNKNOWN] in following APIs:
+ * HAL_GPIO_Init
+ * HAL_GPIO_DeInit
+ */
+
+#ifdef HAL_GPIO_MODULE_ENABLED
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private defines -----------------------------------------------------------*/
+/** @defgroup GPIO_Private_Defines GPIO Private Defines
+ * @{
+ */
+#define GPIO_MODE (0x00000003U)
+#define EXTI_MODE (0x10000000U)
+#define GPIO_MODE_IT (0x00010000U)
+#define GPIO_MODE_EVT (0x00020000U)
+#define RISING_EDGE (0x00100000U)
+#define FALLING_EDGE (0x00200000U)
+#define GPIO_OUTPUT_TYPE (0x00000010U)
+
+#define GPIO_NUMBER (16U)
+/**
+ * @}
+ */
+
+/* Private macros ------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+/* Private function prototypes -----------------------------------------------*/
+/* Exported functions --------------------------------------------------------*/
+
+/** @defgroup GPIO_Exported_Functions GPIO Exported Functions
+ * @{
+ */
+
+/** @defgroup GPIO_Exported_Functions_Group1 Initialization/de-initialization functions
+ * @brief Initialization and Configuration functions
+ *
+@verbatim
+ ===============================================================================
+ ##### Initialization and de-initialization functions #####
+ ===============================================================================
+
+@endverbatim
+ * @{
+ */
+
+/**
+ * @brief Initialize the GPIOx peripheral according to the specified parameters in the GPIO_Init.
+ * @param GPIOx where x can be (A..F) to select the GPIO peripheral for STM32F0 family
+ * @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 = 0x00u;
+ uint32_t iocurrent;
+ uint32_t temp;
+
+ /* 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 */
+ while (((GPIO_Init->Pin) >> position) != 0x00u)
+ {
+ /* Get current io position */
+ iocurrent = (GPIO_Init->Pin) & (1uL << position);
+
+ if (iocurrent != 0x00u)
+ {
+ /*--------------------- 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 parameters */
+ assert_param(IS_GPIO_AF_INSTANCE(GPIOx));
+ assert_param(IS_GPIO_AF(GPIO_Init->Alternate));
+
+ /* Configure Alternate function mapped with the current IO */
+ temp = GPIOx->AFR[position >> 3u];
+ temp &= ~(0xFu << ((position & 0x07u) * 4u));
+ temp |= ((GPIO_Init->Alternate) << ((position & 0x07u) * 4u));
+ GPIOx->AFR[position >> 3u] = temp;
+ }
+
+ /* Configure IO Direction mode (Input, Output, Alternate or Analog) */
+ temp = GPIOx->MODER;
+ temp &= ~(GPIO_MODER_MODER0 << (position * 2u));
+ temp |= ((GPIO_Init->Mode & GPIO_MODE) << (position * 2u));
+ 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 * 2u));
+ temp |= (GPIO_Init->Speed << (position * 2u));
+ GPIOx->OSPEEDR = temp;
+
+ /* Configure the IO Output Type */
+ temp = GPIOx->OTYPER;
+ temp &= ~(GPIO_OTYPER_OT_0 << position) ;
+ temp |= (((GPIO_Init->Mode & GPIO_OUTPUT_TYPE) >> 4u) << position);
+ GPIOx->OTYPER = temp;
+ }
+
+ /* Activate the Pull-up or Pull down resistor for the current IO */
+ temp = GPIOx->PUPDR;
+ temp &= ~(GPIO_PUPDR_PUPDR0 << (position * 2u));
+ temp |= ((GPIO_Init->Pull) << (position * 2u));
+ 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 >> 2u];
+ temp &= ~(0x0FuL << (4u * (position & 0x03u)));
+ temp |= (GPIO_GET_INDEX(GPIOx) << (4u * (position & 0x03u)));
+ SYSCFG->EXTICR[position >> 2u] = temp;
+
+ /* Clear EXTI line configuration */
+ temp = EXTI->IMR;
+ temp &= ~(iocurrent);
+ if((GPIO_Init->Mode & GPIO_MODE_IT) == GPIO_MODE_IT)
+ {
+ temp |= iocurrent;
+ }
+ EXTI->IMR = temp;
+
+ temp = EXTI->EMR;
+ temp &= ~(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 &= ~(iocurrent);
+ if((GPIO_Init->Mode & RISING_EDGE) == RISING_EDGE)
+ {
+ temp |= iocurrent;
+ }
+ EXTI->RTSR = temp;
+
+ temp = EXTI->FTSR;
+ temp &= ~(iocurrent);
+ if((GPIO_Init->Mode & FALLING_EDGE) == FALLING_EDGE)
+ {
+ temp |= iocurrent;
+ }
+ EXTI->FTSR = temp;
+ }
+ }
+
+ position++;
+ }
+}
+
+/**
+ * @brief De-initialize the GPIOx peripheral registers to their default reset values.
+ * @param GPIOx where x can be (A..F) to select the GPIO peripheral for STM32F0 family
+ * @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 = 0x00u;
+ uint32_t iocurrent;
+ uint32_t tmp;
+
+ /* Check the parameters */
+ assert_param(IS_GPIO_ALL_INSTANCE(GPIOx));
+ assert_param(IS_GPIO_PIN(GPIO_Pin));
+
+ /* Configure the port pins */
+ while ((GPIO_Pin >> position) != 0x00u)
+ {
+ /* Get current io position */
+ iocurrent = (GPIO_Pin) & (1uL << position);
+
+ if (iocurrent != 0x00u)
+ {
+ /*------------------------- EXTI Mode Configuration --------------------*/
+ /* Clear the External Interrupt or Event for the current IO */
+
+ tmp = SYSCFG->EXTICR[position >> 2u];
+ tmp &= (0x0FuL << (4u * (position & 0x03u)));
+ if (tmp == (GPIO_GET_INDEX(GPIOx) << (4u * (position & 0x03u))))
+ {
+ /* 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);
+
+ /* Configure the External Interrupt or event for the current IO */
+ tmp = 0x0FuL << (4u * (position & 0x03u));
+ SYSCFG->EXTICR[position >> 2u] &= ~tmp;
+ }
+
+ /*------------------------- GPIO Mode Configuration --------------------*/
+ /* Configure IO Direction in Input Floating Mode */
+ GPIOx->MODER &= ~(GPIO_MODER_MODER0 << (position * 2u));
+
+ /* Configure the default Alternate Function in current IO */
+ GPIOx->AFR[position >> 3u] &= ~(0xFu << ((uint32_t)(position & 0x07u) * 4u)) ;
+
+ /* Configure the default value for IO Speed */
+ GPIOx->OSPEEDR &= ~(GPIO_OSPEEDER_OSPEEDR0 << (position * 2u));
+
+ /* 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 * 2U));
+ }
+
+ position++;
+ }
+}
+
+/**
+ * @}
+ */
+
+/** @defgroup GPIO_Exported_Functions_Group2 IO operation functions
+ * @brief GPIO Read, Write, Toggle, Lock and EXTI management functions.
+ *
+@verbatim
+ ===============================================================================
+ ##### IO operation functions #####
+ ===============================================================================
+
+@endverbatim
+ * @{
+ */
+
+/**
+ * @brief Read the specified input port pin.
+ * @param GPIOx where x can be (A..F) to select the GPIO peripheral for STM32F0 family
+ * @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 Set or clear the selected data port bit.
+ * @note This function uses GPIOx_BSRR and GPIOx_BRR registers 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..H) to select the GPIO peripheral for STM32F0 family
+ * @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 = (uint32_t)GPIO_Pin;
+ }
+ else
+ {
+ GPIOx->BRR = (uint32_t)GPIO_Pin;
+ }
+}
+
+/**
+ * @brief Toggle the specified GPIO pin.
+ * @param GPIOx where x can be (A..F) to select the GPIO peripheral for STM32F0 family
+ * @param GPIO_Pin specifies the pin 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));
+
+ if ((GPIOx->ODR & GPIO_Pin) != 0X00u)
+ {
+ GPIOx->BSRR = (uint32_t)GPIO_Pin << GPIO_NUMBER;
+ }
+ else
+ {
+ GPIOx->BSRR = (uint32_t)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 STM32F0 family
+ * @param GPIO_Pin specifies the port bits 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_LOCK_INSTANCE(GPIOx));
+ assert_param(IS_GPIO_PIN(GPIO_Pin));
+
+ /* Apply lock key write sequence */
+ SET_BIT(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 register. This read is mandatory to complete key lock sequence */
+ tmp = GPIOx->LCKR;
+
+ /* read again in order to confirm lock is active */
+ if((GPIOx->LCKR & GPIO_LCKR_LCKK) != 0x00u)
+ {
+ return HAL_OK;
+ }
+ else
+ {
+ return HAL_ERROR;
+ }
+}
+
+/**
+ * @brief Handle EXTI interrupt request.
+ * @param GPIO_Pin Specifies the port pin connected to corresponding 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) != 0x00u)
+ {
+ __HAL_GPIO_EXTI_CLEAR_IT(GPIO_Pin);
+ HAL_GPIO_EXTI_Callback(GPIO_Pin);
+ }
+}
+
+/**
+ * @brief EXTI line detection callback.
+ * @param GPIO_Pin Specifies the port pin connected to corresponding EXTI line.
+ * @retval None
+ */
+__weak void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin)
+{
+ /* Prevent unused argument(s) compilation warning */
+ UNUSED(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****/
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