mbed library sources. Supersedes mbed-src.
Fork of mbed-dev by
Diff: targets/TARGET_STM/TARGET_STM32F3/gpio_api.c
- Revision:
- 157:ff67d9f36b67
- Parent:
- 156:95d6b41a828b
- Child:
- 158:b23ee177fd68
--- a/targets/TARGET_STM/TARGET_STM32F3/gpio_api.c Mon Jan 16 15:03:32 2017 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,79 +0,0 @@ -/* mbed Microcontroller Library - ******************************************************************************* - * 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. - ******************************************************************************* - */ -#include "mbed_assert.h" -#include "gpio_api.h" -#include "pinmap.h" -#include "mbed_error.h" - -extern uint32_t Set_GPIO_Clock(uint32_t port_idx); - -uint32_t gpio_set(PinName pin) -{ - MBED_ASSERT(pin != (PinName)NC); - - pin_function(pin, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0)); - - return (uint32_t)(1 << ((uint32_t)pin & 0xF)); // Return the pin mask -} - -void gpio_init(gpio_t *obj, PinName pin) -{ - obj->pin = pin; - if (pin == (PinName)NC) { - return; - } - - uint32_t port_index = STM_PORT(pin); - - // Enable GPIO clock - uint32_t gpio_add = Set_GPIO_Clock(port_index); - GPIO_TypeDef *gpio = (GPIO_TypeDef *)gpio_add; - - // Fill GPIO object structure for future use - obj->mask = gpio_set(pin); - obj->reg_in = &gpio->IDR; - obj->reg_set = &gpio->BSRR; - obj->reg_clr = &gpio->BRR; -} - -void gpio_mode(gpio_t *obj, PinMode mode) -{ - pin_mode(obj->pin, mode); -} - -void gpio_dir(gpio_t *obj, PinDirection direction) -{ - MBED_ASSERT(obj->pin != (PinName)NC); - if (direction == PIN_OUTPUT) { - pin_function(obj->pin, STM_PIN_DATA(STM_MODE_OUTPUT_PP, GPIO_NOPULL, 0)); - } else { // PIN_INPUT - pin_function(obj->pin, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0)); - } -}