| /* |
| * Copyright (c) 2015, Freescale Semiconductor, Inc. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without modification, |
| * are permitted provided that the following conditions are met: |
| * |
| * o Redistributions of source code must retain the above copyright notice, this list |
| * of conditions and the following disclaimer. |
| * |
| * o 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. |
| * |
| * o Neither the name of Freescale Semiconductor, Inc. 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. |
| */ |
| |
| #include "fsl_gpio.h" |
| |
| /******************************************************************************* |
| * Variables |
| ******************************************************************************/ |
| static PORT_Type *const s_portBases[] = PORT_BASE_PTRS; |
| static GPIO_Type *const s_gpioBases[] = GPIO_BASE_PTRS; |
| |
| /******************************************************************************* |
| * Prototypes |
| ******************************************************************************/ |
| |
| /*! |
| * @brief Gets the GPIO instance according to the GPIO base |
| * |
| * @param base GPIO peripheral base pointer(PTA, PTB, PTC, etc.) |
| * @retval GPIO instance |
| */ |
| static uint32_t GPIO_GetInstance(GPIO_Type *base); |
| |
| /******************************************************************************* |
| * Code |
| ******************************************************************************/ |
| |
| static uint32_t GPIO_GetInstance(GPIO_Type *base) |
| { |
| uint32_t instance; |
| |
| /* Find the instance index from base address mappings. */ |
| for (instance = 0; instance < FSL_FEATURE_SOC_GPIO_COUNT; instance++) |
| { |
| if (s_gpioBases[instance] == base) |
| { |
| break; |
| } |
| } |
| |
| assert(instance < FSL_FEATURE_SOC_GPIO_COUNT); |
| |
| return instance; |
| } |
| |
| void GPIO_PinInit(GPIO_Type *base, uint32_t pin, const gpio_pin_config_t *config) |
| { |
| assert(config); |
| |
| if (config->pinDirection == kGPIO_DigitalInput) |
| { |
| base->PDDR &= ~(1U << pin); |
| } |
| else |
| { |
| GPIO_WritePinOutput(base, pin, config->outputLogic); |
| base->PDDR |= (1U << pin); |
| } |
| } |
| |
| uint32_t GPIO_GetPinsInterruptFlags(GPIO_Type *base) |
| { |
| uint8_t instance; |
| PORT_Type *portBase; |
| instance = GPIO_GetInstance(base); |
| portBase = s_portBases[instance]; |
| return portBase->ISFR; |
| } |
| |
| void GPIO_ClearPinsInterruptFlags(GPIO_Type *base, uint32_t mask) |
| { |
| uint8_t instance; |
| PORT_Type *portBase; |
| instance = GPIO_GetInstance(base); |
| portBase = s_portBases[instance]; |
| portBase->ISFR = mask; |
| } |
| |
| #if defined(FSL_FEATURE_SOC_FGPIO_COUNT) && FSL_FEATURE_SOC_FGPIO_COUNT |
| |
| /******************************************************************************* |
| * Variables |
| ******************************************************************************/ |
| static FGPIO_Type *const s_fgpioBases[] = FGPIO_BASE_PTRS; |
| |
| /******************************************************************************* |
| * Prototypes |
| ******************************************************************************/ |
| /*! |
| * @brief Gets the FGPIO instance according to the GPIO base |
| * |
| * @param base FGPIO peripheral base pointer(PTA, PTB, PTC, etc.) |
| * @retval FGPIO instance |
| */ |
| static uint32_t FGPIO_GetInstance(FGPIO_Type *base); |
| |
| /******************************************************************************* |
| * Code |
| ******************************************************************************/ |
| |
| static uint32_t FGPIO_GetInstance(FGPIO_Type *base) |
| { |
| uint32_t instance; |
| |
| /* Find the instance index from base address mappings. */ |
| for (instance = 0; instance < FSL_FEATURE_SOC_FGPIO_COUNT; instance++) |
| { |
| if (s_fgpioBases[instance] == base) |
| { |
| break; |
| } |
| } |
| |
| assert(instance < FSL_FEATURE_SOC_FGPIO_COUNT); |
| |
| return instance; |
| } |
| |
| void FGPIO_PinInit(FGPIO_Type *base, uint32_t pin, const gpio_pin_config_t *config) |
| { |
| assert(config); |
| |
| if (config->pinDirection == kGPIO_DigitalInput) |
| { |
| base->PDDR &= ~(1U << pin); |
| } |
| else |
| { |
| FGPIO_WritePinOutput(base, pin, config->outputLogic); |
| base->PDDR |= (1U << pin); |
| } |
| } |
| |
| uint32_t FGPIO_GetPinsInterruptFlags(FGPIO_Type *base) |
| { |
| uint8_t instance; |
| instance = FGPIO_GetInstance(base); |
| PORT_Type *portBase; |
| portBase = s_portBases[instance]; |
| return portBase->ISFR; |
| } |
| |
| void FGPIO_ClearPinsInterruptFlags(FGPIO_Type *base, uint32_t mask) |
| { |
| uint8_t instance; |
| instance = FGPIO_GetInstance(base); |
| PORT_Type *portBase; |
| portBase = s_portBases[instance]; |
| portBase->ISFR = mask; |
| } |
| |
| #endif /* FSL_FEATURE_SOC_FGPIO_COUNT */ |