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Diff: targets/cmsis/TARGET_STM/TARGET_DISCO_F100RB/stm32f10x_gpio.c
- Revision:
- 126:549ba18ddd81
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/targets/cmsis/TARGET_STM/TARGET_DISCO_F100RB/stm32f10x_gpio.c Wed Mar 19 16:00:09 2014 +0000
@@ -0,0 +1,665 @@
+/**
+ ******************************************************************************
+ * @file stm32f10x_gpio.c
+ * @author MCD Application Team
+ * @version V3.6.1
+ * @date 05-March-2012
+ * @brief This file provides all the GPIO firmware functions.
+ *******************************************************************************
+ * Copyright (c) 2014, STMicroelectronics
+ * All rights reserved.
+ *
+ * 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 "stm32f10x_gpio.h"
+#include "stm32f10x_rcc.h"
+
+/** @addtogroup STM32F10x_StdPeriph_Driver
+ * @{
+ */
+
+/** @defgroup GPIO
+ * @brief GPIO driver modules
+ * @{
+ */
+
+/** @defgroup GPIO_Private_TypesDefinitions
+ * @{
+ */
+
+/**
+ * @}
+ */
+
+/** @defgroup GPIO_Private_Defines
+ * @{
+ */
+
+/* ------------ RCC registers bit address in the alias region ----------------*/
+#define AFIO_OFFSET (AFIO_BASE - PERIPH_BASE)
+
+/* --- EVENTCR Register -----*/
+
+/* Alias word address of EVOE bit */
+#define EVCR_OFFSET (AFIO_OFFSET + 0x00)
+#define EVOE_BitNumber ((uint8_t)0x07)
+#define EVCR_EVOE_BB (PERIPH_BB_BASE + (EVCR_OFFSET * 32) + (EVOE_BitNumber * 4))
+
+
+/* --- MAPR Register ---*/
+/* Alias word address of MII_RMII_SEL bit */
+#define MAPR_OFFSET (AFIO_OFFSET + 0x04)
+#define MII_RMII_SEL_BitNumber ((u8)0x17)
+#define MAPR_MII_RMII_SEL_BB (PERIPH_BB_BASE + (MAPR_OFFSET * 32) + (MII_RMII_SEL_BitNumber * 4))
+
+
+#define EVCR_PORTPINCONFIG_MASK ((uint16_t)0xFF80)
+#define LSB_MASK ((uint16_t)0xFFFF)
+#define DBGAFR_POSITION_MASK ((uint32_t)0x000F0000)
+#define DBGAFR_SWJCFG_MASK ((uint32_t)0xF0FFFFFF)
+#define DBGAFR_LOCATION_MASK ((uint32_t)0x00200000)
+#define DBGAFR_NUMBITS_MASK ((uint32_t)0x00100000)
+/**
+ * @}
+ */
+
+/** @defgroup GPIO_Private_Macros
+ * @{
+ */
+
+/**
+ * @}
+ */
+
+/** @defgroup GPIO_Private_Variables
+ * @{
+ */
+
+/**
+ * @}
+ */
+
+/** @defgroup GPIO_Private_FunctionPrototypes
+ * @{
+ */
+
+/**
+ * @}
+ */
+
+/** @defgroup GPIO_Private_Functions
+ * @{
+ */
+
+/**
+ * @brief Deinitializes the GPIOx peripheral registers to their default reset values.
+ * @param GPIOx: where x can be (A..G) to select the GPIO peripheral.
+ * @retval None
+ */
+void GPIO_DeInit(GPIO_TypeDef* GPIOx)
+{
+ /* Check the parameters */
+ assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
+
+ if (GPIOx == GPIOA)
+ {
+ RCC_APB2PeriphResetCmd(RCC_APB2Periph_GPIOA, ENABLE);
+ RCC_APB2PeriphResetCmd(RCC_APB2Periph_GPIOA, DISABLE);
+ }
+ else if (GPIOx == GPIOB)
+ {
+ RCC_APB2PeriphResetCmd(RCC_APB2Periph_GPIOB, ENABLE);
+ RCC_APB2PeriphResetCmd(RCC_APB2Periph_GPIOB, DISABLE);
+ }
+ else if (GPIOx == GPIOC)
+ {
+ RCC_APB2PeriphResetCmd(RCC_APB2Periph_GPIOC, ENABLE);
+ RCC_APB2PeriphResetCmd(RCC_APB2Periph_GPIOC, DISABLE);
+ }
+ else if (GPIOx == GPIOD)
+ {
+ RCC_APB2PeriphResetCmd(RCC_APB2Periph_GPIOD, ENABLE);
+ RCC_APB2PeriphResetCmd(RCC_APB2Periph_GPIOD, DISABLE);
+ }
+ else if (GPIOx == GPIOE)
+ {
+ RCC_APB2PeriphResetCmd(RCC_APB2Periph_GPIOE, ENABLE);
+ RCC_APB2PeriphResetCmd(RCC_APB2Periph_GPIOE, DISABLE);
+ }
+ else if (GPIOx == GPIOF)
+ {
+ RCC_APB2PeriphResetCmd(RCC_APB2Periph_GPIOF, ENABLE);
+ RCC_APB2PeriphResetCmd(RCC_APB2Periph_GPIOF, DISABLE);
+ }
+ else
+ {
+ if (GPIOx == GPIOG)
+ {
+ RCC_APB2PeriphResetCmd(RCC_APB2Periph_GPIOG, ENABLE);
+ RCC_APB2PeriphResetCmd(RCC_APB2Periph_GPIOG, DISABLE);
+ }
+ }
+}
+
+/**
+ * @brief Deinitializes the Alternate Functions (remap, event control
+ * and EXTI configuration) registers to their default reset values.
+ * @param None
+ * @retval None
+ */
+void GPIO_AFIODeInit(void)
+{
+ RCC_APB2PeriphResetCmd(RCC_APB2Periph_AFIO, ENABLE);
+ RCC_APB2PeriphResetCmd(RCC_APB2Periph_AFIO, DISABLE);
+}
+
+/**
+ * @brief Initializes the GPIOx peripheral according to the specified
+ * parameters in the GPIO_InitStruct.
+ * @param GPIOx: where x can be (A..G) to select the GPIO peripheral.
+ * @param GPIO_InitStruct: pointer to a GPIO_InitTypeDef structure that
+ * contains the configuration information for the specified GPIO peripheral.
+ * @retval None
+ */
+void GPIO_Init(GPIO_TypeDef* GPIOx, GPIO_InitTypeDef* GPIO_InitStruct)
+{
+ uint32_t currentmode = 0x00, currentpin = 0x00, pinpos = 0x00, pos = 0x00;
+ uint32_t tmpreg = 0x00, pinmask = 0x00;
+ /* Check the parameters */
+ assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
+ assert_param(IS_GPIO_MODE(GPIO_InitStruct->GPIO_Mode));
+ assert_param(IS_GPIO_PIN(GPIO_InitStruct->GPIO_Pin));
+
+/*---------------------------- GPIO Mode Configuration -----------------------*/
+ currentmode = ((uint32_t)GPIO_InitStruct->GPIO_Mode) & ((uint32_t)0x0F);
+ if ((((uint32_t)GPIO_InitStruct->GPIO_Mode) & ((uint32_t)0x10)) != 0x00)
+ {
+ /* Check the parameters */
+ assert_param(IS_GPIO_SPEED(GPIO_InitStruct->GPIO_Speed));
+ /* Output mode */
+ currentmode |= (uint32_t)GPIO_InitStruct->GPIO_Speed;
+ }
+/*---------------------------- GPIO CRL Configuration ------------------------*/
+ /* Configure the eight low port pins */
+ if (((uint32_t)GPIO_InitStruct->GPIO_Pin & ((uint32_t)0x00FF)) != 0x00)
+ {
+ tmpreg = GPIOx->CRL;
+ for (pinpos = 0x00; pinpos < 0x08; pinpos++)
+ {
+ pos = ((uint32_t)0x01) << pinpos;
+ /* Get the port pins position */
+ currentpin = (GPIO_InitStruct->GPIO_Pin) & pos;
+ if (currentpin == pos)
+ {
+ pos = pinpos << 2;
+ /* Clear the corresponding low control register bits */
+ pinmask = ((uint32_t)0x0F) << pos;
+ tmpreg &= ~pinmask;
+ /* Write the mode configuration in the corresponding bits */
+ tmpreg |= (currentmode << pos);
+ /* Reset the corresponding ODR bit */
+ if (GPIO_InitStruct->GPIO_Mode == GPIO_Mode_IPD)
+ {
+ GPIOx->BRR = (((uint32_t)0x01) << pinpos);
+ }
+ else
+ {
+ /* Set the corresponding ODR bit */
+ if (GPIO_InitStruct->GPIO_Mode == GPIO_Mode_IPU)
+ {
+ GPIOx->BSRR = (((uint32_t)0x01) << pinpos);
+ }
+ }
+ }
+ }
+ GPIOx->CRL = tmpreg;
+ }
+/*---------------------------- GPIO CRH Configuration ------------------------*/
+ /* Configure the eight high port pins */
+ if (GPIO_InitStruct->GPIO_Pin > 0x00FF)
+ {
+ tmpreg = GPIOx->CRH;
+ for (pinpos = 0x00; pinpos < 0x08; pinpos++)
+ {
+ pos = (((uint32_t)0x01) << (pinpos + 0x08));
+ /* Get the port pins position */
+ currentpin = ((GPIO_InitStruct->GPIO_Pin) & pos);
+ if (currentpin == pos)
+ {
+ pos = pinpos << 2;
+ /* Clear the corresponding high control register bits */
+ pinmask = ((uint32_t)0x0F) << pos;
+ tmpreg &= ~pinmask;
+ /* Write the mode configuration in the corresponding bits */
+ tmpreg |= (currentmode << pos);
+ /* Reset the corresponding ODR bit */
+ if (GPIO_InitStruct->GPIO_Mode == GPIO_Mode_IPD)
+ {
+ GPIOx->BRR = (((uint32_t)0x01) << (pinpos + 0x08));
+ }
+ /* Set the corresponding ODR bit */
+ if (GPIO_InitStruct->GPIO_Mode == GPIO_Mode_IPU)
+ {
+ GPIOx->BSRR = (((uint32_t)0x01) << (pinpos + 0x08));
+ }
+ }
+ }
+ GPIOx->CRH = tmpreg;
+ }
+}
+
+/**
+ * @brief Fills each GPIO_InitStruct member with its default value.
+ * @param GPIO_InitStruct : pointer to a GPIO_InitTypeDef structure which will
+ * be initialized.
+ * @retval None
+ */
+void GPIO_StructInit(GPIO_InitTypeDef* GPIO_InitStruct)
+{
+ /* Reset GPIO init structure parameters values */
+ GPIO_InitStruct->GPIO_Pin = GPIO_Pin_All;
+ GPIO_InitStruct->GPIO_Speed = GPIO_Speed_2MHz;
+ GPIO_InitStruct->GPIO_Mode = GPIO_Mode_IN_FLOATING;
+}
+
+/**
+ * @brief Reads the specified input port pin.
+ * @param GPIOx: where x can be (A..G) to select the GPIO peripheral.
+ * @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.
+ */
+uint8_t GPIO_ReadInputDataBit(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin)
+{
+ uint8_t bitstatus = 0x00;
+
+ /* Check the parameters */
+ assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
+ assert_param(IS_GET_GPIO_PIN(GPIO_Pin));
+
+ if ((GPIOx->IDR & GPIO_Pin) != (uint32_t)Bit_RESET)
+ {
+ bitstatus = (uint8_t)Bit_SET;
+ }
+ else
+ {
+ bitstatus = (uint8_t)Bit_RESET;
+ }
+ return bitstatus;
+}
+
+/**
+ * @brief Reads the specified GPIO input data port.
+ * @param GPIOx: where x can be (A..G) to select the GPIO peripheral.
+ * @retval GPIO input data port value.
+ */
+uint16_t GPIO_ReadInputData(GPIO_TypeDef* GPIOx)
+{
+ /* Check the parameters */
+ assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
+
+ return ((uint16_t)GPIOx->IDR);
+}
+
+/**
+ * @brief Reads the specified output data port bit.
+ * @param GPIOx: where x can be (A..G) to select the GPIO peripheral.
+ * @param GPIO_Pin: specifies the port bit to read.
+ * This parameter can be GPIO_Pin_x where x can be (0..15).
+ * @retval The output port pin value.
+ */
+uint8_t GPIO_ReadOutputDataBit(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin)
+{
+ uint8_t bitstatus = 0x00;
+ /* Check the parameters */
+ assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
+ assert_param(IS_GET_GPIO_PIN(GPIO_Pin));
+
+ if ((GPIOx->ODR & GPIO_Pin) != (uint32_t)Bit_RESET)
+ {
+ bitstatus = (uint8_t)Bit_SET;
+ }
+ else
+ {
+ bitstatus = (uint8_t)Bit_RESET;
+ }
+ return bitstatus;
+}
+
+/**
+ * @brief Reads the specified GPIO output data port.
+ * @param GPIOx: where x can be (A..G) to select the GPIO peripheral.
+ * @retval GPIO output data port value.
+ */
+uint16_t GPIO_ReadOutputData(GPIO_TypeDef* GPIOx)
+{
+ /* Check the parameters */
+ assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
+
+ return ((uint16_t)GPIOx->ODR);
+}
+
+/**
+ * @brief Sets the selected data port bits.
+ * @param GPIOx: where x can be (A..G) to select the GPIO peripheral.
+ * @param GPIO_Pin: specifies the port bits to be written.
+ * This parameter can be any combination of GPIO_Pin_x where x can be (0..15).
+ * @retval None
+ */
+void GPIO_SetBits(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin)
+{
+ /* Check the parameters */
+ assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
+ assert_param(IS_GPIO_PIN(GPIO_Pin));
+
+ GPIOx->BSRR = GPIO_Pin;
+}
+
+/**
+ * @brief Clears the selected data port bits.
+ * @param GPIOx: where x can be (A..G) to select the GPIO peripheral.
+ * @param GPIO_Pin: specifies the port bits to be written.
+ * This parameter can be any combination of GPIO_Pin_x where x can be (0..15).
+ * @retval None
+ */
+void GPIO_ResetBits(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin)
+{
+ /* Check the parameters */
+ assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
+ assert_param(IS_GPIO_PIN(GPIO_Pin));
+
+ GPIOx->BRR = GPIO_Pin;
+}
+
+/**
+ * @brief Sets or clears the selected data port bit.
+ * @param GPIOx: where x can be (A..G) to select the GPIO peripheral.
+ * @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 BitVal: specifies the value to be written to the selected bit.
+ * This parameter can be one of the BitAction enum values:
+ * @arg Bit_RESET: to clear the port pin
+ * @arg Bit_SET: to set the port pin
+ * @retval None
+ */
+void GPIO_WriteBit(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin, BitAction BitVal)
+{
+ /* Check the parameters */
+ assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
+ assert_param(IS_GET_GPIO_PIN(GPIO_Pin));
+ assert_param(IS_GPIO_BIT_ACTION(BitVal));
+
+ if (BitVal != Bit_RESET)
+ {
+ GPIOx->BSRR = GPIO_Pin;
+ }
+ else
+ {
+ GPIOx->BRR = GPIO_Pin;
+ }
+}
+
+/**
+ * @brief Writes data to the specified GPIO data port.
+ * @param GPIOx: where x can be (A..G) to select the GPIO peripheral.
+ * @param PortVal: specifies the value to be written to the port output data register.
+ * @retval None
+ */
+void GPIO_Write(GPIO_TypeDef* GPIOx, uint16_t PortVal)
+{
+ /* Check the parameters */
+ assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
+
+ GPIOx->ODR = PortVal;
+}
+
+/**
+ * @brief Locks GPIO Pins configuration registers.
+ * @param GPIOx: where x can be (A..G) to select the GPIO peripheral.
+ * @param GPIO_Pin: specifies the port bit to be written.
+ * This parameter can be any combination of GPIO_Pin_x where x can be (0..15).
+ * @retval None
+ */
+void GPIO_PinLockConfig(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin)
+{
+ uint32_t tmp = 0x00010000;
+
+ /* Check the parameters */
+ assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
+ assert_param(IS_GPIO_PIN(GPIO_Pin));
+
+ tmp |= GPIO_Pin;
+ /* Set LCKK bit */
+ GPIOx->LCKR = tmp;
+ /* Reset LCKK bit */
+ GPIOx->LCKR = GPIO_Pin;
+ /* Set LCKK bit */
+ GPIOx->LCKR = tmp;
+ /* Read LCKK bit*/
+ tmp = GPIOx->LCKR;
+ /* Read LCKK bit*/
+ tmp = GPIOx->LCKR;
+}
+
+/**
+ * @brief Selects the GPIO pin used as Event output.
+ * @param GPIO_PortSource: selects the GPIO port to be used as source
+ * for Event output.
+ * This parameter can be GPIO_PortSourceGPIOx where x can be (A..E).
+ * @param GPIO_PinSource: specifies the pin for the Event output.
+ * This parameter can be GPIO_PinSourcex where x can be (0..15).
+ * @retval None
+ */
+void GPIO_EventOutputConfig(uint8_t GPIO_PortSource, uint8_t GPIO_PinSource)
+{
+ uint32_t tmpreg = 0x00;
+ /* Check the parameters */
+ assert_param(IS_GPIO_EVENTOUT_PORT_SOURCE(GPIO_PortSource));
+ assert_param(IS_GPIO_PIN_SOURCE(GPIO_PinSource));
+
+ tmpreg = AFIO->EVCR;
+ /* Clear the PORT[6:4] and PIN[3:0] bits */
+ tmpreg &= EVCR_PORTPINCONFIG_MASK;
+ tmpreg |= (uint32_t)GPIO_PortSource << 0x04;
+ tmpreg |= GPIO_PinSource;
+ AFIO->EVCR = tmpreg;
+}
+
+/**
+ * @brief Enables or disables the Event Output.
+ * @param NewState: new state of the Event output.
+ * This parameter can be: ENABLE or DISABLE.
+ * @retval None
+ */
+void GPIO_EventOutputCmd(FunctionalState NewState)
+{
+ /* Check the parameters */
+ assert_param(IS_FUNCTIONAL_STATE(NewState));
+
+ *(__IO uint32_t *) EVCR_EVOE_BB = (uint32_t)NewState;
+}
+
+/**
+ * @brief Changes the mapping of the specified pin.
+ * @param GPIO_Remap: selects the pin to remap.
+ * This parameter can be one of the following values:
+ * @arg GPIO_Remap_SPI1 : SPI1 Alternate Function mapping
+ * @arg GPIO_Remap_I2C1 : I2C1 Alternate Function mapping
+ * @arg GPIO_Remap_USART1 : USART1 Alternate Function mapping
+ * @arg GPIO_Remap_USART2 : USART2 Alternate Function mapping
+ * @arg GPIO_PartialRemap_USART3 : USART3 Partial Alternate Function mapping
+ * @arg GPIO_FullRemap_USART3 : USART3 Full Alternate Function mapping
+ * @arg GPIO_PartialRemap_TIM1 : TIM1 Partial Alternate Function mapping
+ * @arg GPIO_FullRemap_TIM1 : TIM1 Full Alternate Function mapping
+ * @arg GPIO_PartialRemap1_TIM2 : TIM2 Partial1 Alternate Function mapping
+ * @arg GPIO_PartialRemap2_TIM2 : TIM2 Partial2 Alternate Function mapping
+ * @arg GPIO_FullRemap_TIM2 : TIM2 Full Alternate Function mapping
+ * @arg GPIO_PartialRemap_TIM3 : TIM3 Partial Alternate Function mapping
+ * @arg GPIO_FullRemap_TIM3 : TIM3 Full Alternate Function mapping
+ * @arg GPIO_Remap_TIM4 : TIM4 Alternate Function mapping
+ * @arg GPIO_Remap1_CAN1 : CAN1 Alternate Function mapping
+ * @arg GPIO_Remap2_CAN1 : CAN1 Alternate Function mapping
+ * @arg GPIO_Remap_PD01 : PD01 Alternate Function mapping
+ * @arg GPIO_Remap_TIM5CH4_LSI : LSI connected to TIM5 Channel4 input capture for calibration
+ * @arg GPIO_Remap_ADC1_ETRGINJ : ADC1 External Trigger Injected Conversion remapping
+ * @arg GPIO_Remap_ADC1_ETRGREG : ADC1 External Trigger Regular Conversion remapping
+ * @arg GPIO_Remap_ADC2_ETRGINJ : ADC2 External Trigger Injected Conversion remapping
+ * @arg GPIO_Remap_ADC2_ETRGREG : ADC2 External Trigger Regular Conversion remapping
+ * @arg GPIO_Remap_ETH : Ethernet remapping (only for Connectivity line devices)
+ * @arg GPIO_Remap_CAN2 : CAN2 remapping (only for Connectivity line devices)
+ * @arg GPIO_Remap_SWJ_NoJTRST : Full SWJ Enabled (JTAG-DP + SW-DP) but without JTRST
+ * @arg GPIO_Remap_SWJ_JTAGDisable : JTAG-DP Disabled and SW-DP Enabled
+ * @arg GPIO_Remap_SWJ_Disable : Full SWJ Disabled (JTAG-DP + SW-DP)
+ * @arg GPIO_Remap_SPI3 : SPI3/I2S3 Alternate Function mapping (only for Connectivity line devices)
+ * When the SPI3/I2S3 is remapped using this function, the SWJ is configured
+ * to Full SWJ Enabled (JTAG-DP + SW-DP) but without JTRST.
+ * @arg GPIO_Remap_TIM2ITR1_PTP_SOF : Ethernet PTP output or USB OTG SOF (Start of Frame) connected
+ * to TIM2 Internal Trigger 1 for calibration (only for Connectivity line devices)
+ * If the GPIO_Remap_TIM2ITR1_PTP_SOF is enabled the TIM2 ITR1 is connected to
+ * Ethernet PTP output. When Reset TIM2 ITR1 is connected to USB OTG SOF output.
+ * @arg GPIO_Remap_PTP_PPS : Ethernet MAC PPS_PTS output on PB05 (only for Connectivity line devices)
+ * @arg GPIO_Remap_TIM15 : TIM15 Alternate Function mapping (only for Value line devices)
+ * @arg GPIO_Remap_TIM16 : TIM16 Alternate Function mapping (only for Value line devices)
+ * @arg GPIO_Remap_TIM17 : TIM17 Alternate Function mapping (only for Value line devices)
+ * @arg GPIO_Remap_CEC : CEC Alternate Function mapping (only for Value line devices)
+ * @arg GPIO_Remap_TIM1_DMA : TIM1 DMA requests mapping (only for Value line devices)
+ * @arg GPIO_Remap_TIM9 : TIM9 Alternate Function mapping (only for XL-density devices)
+ * @arg GPIO_Remap_TIM10 : TIM10 Alternate Function mapping (only for XL-density devices)
+ * @arg GPIO_Remap_TIM11 : TIM11 Alternate Function mapping (only for XL-density devices)
+ * @arg GPIO_Remap_TIM13 : TIM13 Alternate Function mapping (only for High density Value line and XL-density devices)
+ * @arg GPIO_Remap_TIM14 : TIM14 Alternate Function mapping (only for High density Value line and XL-density devices)
+ * @arg GPIO_Remap_FSMC_NADV : FSMC_NADV Alternate Function mapping (only for High density Value line and XL-density devices)
+ * @arg GPIO_Remap_TIM67_DAC_DMA : TIM6/TIM7 and DAC DMA requests remapping (only for High density Value line devices)
+ * @arg GPIO_Remap_TIM12 : TIM12 Alternate Function mapping (only for High density Value line devices)
+ * @arg GPIO_Remap_MISC : Miscellaneous Remap (DMA2 Channel5 Position and DAC Trigger remapping,
+ * only for High density Value line devices)
+ * @param NewState: new state of the port pin remapping.
+ * This parameter can be: ENABLE or DISABLE.
+ * @retval None
+ */
+void GPIO_PinRemapConfig(uint32_t GPIO_Remap, FunctionalState NewState)
+{
+ uint32_t tmp = 0x00, tmp1 = 0x00, tmpreg = 0x00, tmpmask = 0x00;
+
+ /* Check the parameters */
+ assert_param(IS_GPIO_REMAP(GPIO_Remap));
+ assert_param(IS_FUNCTIONAL_STATE(NewState));
+
+ if((GPIO_Remap & 0x80000000) == 0x80000000)
+ {
+ tmpreg = AFIO->MAPR2;
+ }
+ else
+ {
+ tmpreg = AFIO->MAPR;
+ }
+
+ tmpmask = (GPIO_Remap & DBGAFR_POSITION_MASK) >> 0x10;
+ tmp = GPIO_Remap & LSB_MASK;
+
+ if ((GPIO_Remap & (DBGAFR_LOCATION_MASK | DBGAFR_NUMBITS_MASK)) == (DBGAFR_LOCATION_MASK | DBGAFR_NUMBITS_MASK))
+ {
+ tmpreg &= DBGAFR_SWJCFG_MASK;
+ AFIO->MAPR &= DBGAFR_SWJCFG_MASK;
+ }
+ else if ((GPIO_Remap & DBGAFR_NUMBITS_MASK) == DBGAFR_NUMBITS_MASK)
+ {
+ tmp1 = ((uint32_t)0x03) << tmpmask;
+ tmpreg &= ~tmp1;
+ tmpreg |= ~DBGAFR_SWJCFG_MASK;
+ }
+ else
+ {
+ tmpreg &= ~(tmp << ((GPIO_Remap >> 0x15)*0x10));
+ tmpreg |= ~DBGAFR_SWJCFG_MASK;
+ }
+
+ if (NewState != DISABLE)
+ {
+ tmpreg |= (tmp << ((GPIO_Remap >> 0x15)*0x10));
+ }
+
+ if((GPIO_Remap & 0x80000000) == 0x80000000)
+ {
+ AFIO->MAPR2 = tmpreg;
+ }
+ else
+ {
+ AFIO->MAPR = tmpreg;
+ }
+}
+
+/**
+ * @brief Selects the GPIO pin used as EXTI Line.
+ * @param GPIO_PortSource: selects the GPIO port to be used as source for EXTI lines.
+ * This parameter can be GPIO_PortSourceGPIOx where x can be (A..G).
+ * @param GPIO_PinSource: specifies the EXTI line to be configured.
+ * This parameter can be GPIO_PinSourcex where x can be (0..15).
+ * @retval None
+ */
+void GPIO_EXTILineConfig(uint8_t GPIO_PortSource, uint8_t GPIO_PinSource)
+{
+ uint32_t tmp = 0x00;
+ /* Check the parameters */
+ assert_param(IS_GPIO_EXTI_PORT_SOURCE(GPIO_PortSource));
+ assert_param(IS_GPIO_PIN_SOURCE(GPIO_PinSource));
+
+ tmp = ((uint32_t)0x0F) << (0x04 * (GPIO_PinSource & (uint8_t)0x03));
+ AFIO->EXTICR[GPIO_PinSource >> 0x02] &= ~tmp;
+ AFIO->EXTICR[GPIO_PinSource >> 0x02] |= (((uint32_t)GPIO_PortSource) << (0x04 * (GPIO_PinSource & (uint8_t)0x03)));
+}
+
+/**
+ * @brief Selects the Ethernet media interface.
+ * @note This function applies only to STM32 Connectivity line devices.
+ * @param GPIO_ETH_MediaInterface: specifies the Media Interface mode.
+ * This parameter can be one of the following values:
+ * @arg GPIO_ETH_MediaInterface_MII: MII mode
+ * @arg GPIO_ETH_MediaInterface_RMII: RMII mode
+ * @retval None
+ */
+void GPIO_ETH_MediaInterfaceConfig(uint32_t GPIO_ETH_MediaInterface)
+{
+ assert_param(IS_GPIO_ETH_MEDIA_INTERFACE(GPIO_ETH_MediaInterface));
+
+ /* Configure MII_RMII selection bit */
+ *(__IO uint32_t *) MAPR_MII_RMII_SEL_BB = GPIO_ETH_MediaInterface;
+}
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/