mirror of https://github.com/ARMmbed/mbed-os.git
139 lines
6.8 KiB
C
139 lines
6.8 KiB
C
/* mbed Microcontroller Library
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*******************************************************************************
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* Copyright (c) 2016, STMicroelectronics
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. Neither the name of STMicroelectronics nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*******************************************************************************
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*/
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#ifndef MBED_PIN_DEVICE_H
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#define MBED_PIN_DEVICE_H
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#include "cmsis.h"
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// when LL is available, below include can be used
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// #include "stm32f4xx_ll_gpio.h"
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// until then let's define locally the required functions
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#define LL_GPIO_PIN_0 GPIO_BSRR_BS_0 /*!< Select pin 0 */
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#define LL_GPIO_PIN_1 GPIO_BSRR_BS_1 /*!< Select pin 1 */
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#define LL_GPIO_PIN_2 GPIO_BSRR_BS_2 /*!< Select pin 2 */
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#define LL_GPIO_PIN_3 GPIO_BSRR_BS_3 /*!< Select pin 3 */
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#define LL_GPIO_PIN_4 GPIO_BSRR_BS_4 /*!< Select pin 4 */
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#define LL_GPIO_PIN_5 GPIO_BSRR_BS_5 /*!< Select pin 5 */
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#define LL_GPIO_PIN_6 GPIO_BSRR_BS_6 /*!< Select pin 6 */
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#define LL_GPIO_PIN_7 GPIO_BSRR_BS_7 /*!< Select pin 7 */
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#define LL_GPIO_PIN_8 GPIO_BSRR_BS_8 /*!< Select pin 8 */
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#define LL_GPIO_PIN_9 GPIO_BSRR_BS_9 /*!< Select pin 9 */
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#define LL_GPIO_PIN_10 GPIO_BSRR_BS_10 /*!< Select pin 10 */
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#define LL_GPIO_PIN_11 GPIO_BSRR_BS_11 /*!< Select pin 11 */
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#define LL_GPIO_PIN_12 GPIO_BSRR_BS_12 /*!< Select pin 12 */
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#define LL_GPIO_PIN_13 GPIO_BSRR_BS_13 /*!< Select pin 13 */
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#define LL_GPIO_PIN_14 GPIO_BSRR_BS_14 /*!< Select pin 14 */
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#define LL_GPIO_PIN_15 GPIO_BSRR_BS_15 /*!< Select pin 15 */
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#define LL_GPIO_MODE_INPUT ((uint32_t)0x00000000U) /*!< Select input mode */
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#define LL_GPIO_MODE_OUTPUT GPIO_MODER_MODER0_0 /*!< Select output mode */
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#define LL_GPIO_MODE_ALTERNATE GPIO_MODER_MODER0_1 /*!< Select alternate function mode */
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#define LL_GPIO_MODE_ANALOG GPIO_MODER_MODER0 /*!< Select analog mode */
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#define LL_GPIO_OUTPUT_PUSHPULL ((uint32_t)0x00000000U) /*!< Select push-pull as output type */
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#define LL_GPIO_OUTPUT_OPENDRAIN GPIO_OTYPER_OT_0 /*!< Select open-drain as output type */
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#define LL_GPIO_PULL_NO ((uint32_t)0x00000000U) /*!< Select I/O no pull */
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#define LL_GPIO_PULL_UP GPIO_PUPDR_PUPDR0_0 /*!< Select I/O pull up */
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#define LL_GPIO_PULL_DOWN GPIO_PUPDR_PUPDR0_1 /*!< Select I/O pull down */
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#define LL_GPIO_SPEED_FREQ_LOW ((uint32_t)0x00000000U) /*!< Select I/O low output speed */
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#define LL_GPIO_SPEED_FREQ_MEDIUM GPIO_OSPEEDER_OSPEEDR0_0 /*!< Select I/O medium output speed */
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#define LL_GPIO_SPEED_FREQ_HIGH GPIO_OSPEEDER_OSPEEDR0_1 /*!< Select I/O fast output speed */
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#define LL_GPIO_SPEED_FREQ_VERY_HIGH GPIO_OSPEEDER_OSPEEDR0 /*!< Select I/O high output speed */
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__STATIC_INLINE void LL_GPIO_SetAFPin_0_7(GPIO_TypeDef *GPIOx, uint32_t Pin, uint32_t Alternate)
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{
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MODIFY_REG(GPIOx->AFR[0], (0xFU << (POSITION_VAL(Pin) * 4U)),
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(Alternate << (POSITION_VAL(Pin) * 4U)));
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}
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__STATIC_INLINE void LL_GPIO_SetAFPin_8_15(GPIO_TypeDef *GPIOx, uint32_t Pin, uint32_t Alternate)
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{
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MODIFY_REG(GPIOx->AFR[1], (0xFU << (POSITION_VAL(Pin >> 8U) * 4U)),
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(Alternate << (POSITION_VAL(Pin >> 8U) * 4U)));
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}
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__STATIC_INLINE void LL_GPIO_SetPinMode(GPIO_TypeDef *GPIOx, uint32_t Pin, uint32_t Mode)
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{
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MODIFY_REG(GPIOx->MODER, (GPIO_MODER_MODER0 << (POSITION_VAL(Pin) * 2U)), (Mode << (POSITION_VAL(Pin) * 2U)));
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}
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__STATIC_INLINE uint32_t LL_GPIO_GetPinMode(GPIO_TypeDef *GPIOx, uint32_t Pin)
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{
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return (uint32_t)(READ_BIT(GPIOx->MODER, ((Pin * Pin) * GPIO_MODER_MODER0)) / (Pin * Pin));
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}
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__STATIC_INLINE void LL_GPIO_SetPinPull(GPIO_TypeDef *GPIOx, uint32_t Pin, uint32_t Pull)
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{
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MODIFY_REG(GPIOx->PUPDR, (GPIO_PUPDR_PUPDR0 << (POSITION_VAL(Pin) * 2U)), (Pull << (POSITION_VAL(Pin) * 2U)));
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}
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__STATIC_INLINE void LL_GPIO_SetPinOutputType(GPIO_TypeDef *GPIOx, uint32_t PinMask, uint32_t OutputType)
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{
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MODIFY_REG(GPIOx->OTYPER, PinMask, (PinMask * OutputType));
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}
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__STATIC_INLINE void LL_GPIO_SetPinSpeed(GPIO_TypeDef *GPIOx, uint32_t Pin, uint32_t Speed)
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{
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MODIFY_REG(GPIOx->OSPEEDR, (GPIO_OSPEEDER_OSPEEDR0 << (POSITION_VAL(Pin) * 2U)),
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(Speed << (POSITION_VAL(Pin) * 2U)));
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}
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// Above lines shall be defined in LL when available
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extern const uint32_t ll_pin_defines[16];
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/* Family specific implementations */
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static inline void stm_pin_DisconnectDebug(PinName pin)
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{
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/* empty for now */
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}
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static inline void stm_pin_PullConfig(GPIO_TypeDef *gpio, uint32_t ll_pin, uint32_t pull_config)
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{
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switch (pull_config) {
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case GPIO_PULLUP:
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LL_GPIO_SetPinPull(gpio, ll_pin, LL_GPIO_PULL_UP);
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break;
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case GPIO_PULLDOWN:
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LL_GPIO_SetPinPull(gpio, ll_pin, LL_GPIO_PULL_DOWN);
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break;
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default:
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LL_GPIO_SetPinPull(gpio, ll_pin, LL_GPIO_PULL_NO);
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break;
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}
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}
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static inline void stm_pin_SetAFPin( GPIO_TypeDef *gpio, PinName pin, uint32_t afnum)
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{
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uint32_t ll_pin = ll_pin_defines[STM_PIN(pin)];
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if (STM_PIN(pin) > 7)
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LL_GPIO_SetAFPin_8_15(gpio, ll_pin, afnum);
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else
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LL_GPIO_SetAFPin_0_7(gpio, ll_pin, afnum);
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}
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#endif
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