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Diffstat (limited to 'tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Libraries/STM32F10x_StdPeriph_Driver/src/stm32f10x_gpio.c')
| -rw-r--r-- | tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Libraries/STM32F10x_StdPeriph_Driver/src/stm32f10x_gpio.c | 650 |
1 files changed, 650 insertions, 0 deletions
diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Libraries/STM32F10x_StdPeriph_Driver/src/stm32f10x_gpio.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Libraries/STM32F10x_StdPeriph_Driver/src/stm32f10x_gpio.c new file mode 100644 index 0000000..457ff11 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Libraries/STM32F10x_StdPeriph_Driver/src/stm32f10x_gpio.c @@ -0,0 +1,650 @@ +/** + ****************************************************************************** + * @file stm32f10x_gpio.c + * @author MCD Application Team + * @version V3.5.0 + * @date 11-March-2011 + * @brief This file provides all the GPIO firmware functions. + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* 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 2011 STMicroelectronics *****END OF FILE****/ |