mbed library sources
Dependents: STM32F103C8T6-RangoTec STM32-103C8_Plantilla_USB
common/gpio.c
- Committer:
- mbed_official
- Date:
- 2014-03-19
- Revision:
- 127:ce7cebc0511f
- Parent:
- 113:65a335a675de
- Child:
- 160:6870f452afa4
File content as of revision 127:ce7cebc0511f:
/* mbed Microcontroller Library * Copyright (c) 2006-2013 ARM Limited * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include "gpio_api.h" static inline void _gpio_init_in(gpio_t* gpio, PinName pin, PinMode mode) { gpio_init(gpio, pin); gpio_dir(gpio, PIN_INPUT); gpio_mode(gpio, mode); } static inline void _gpio_init_out(gpio_t* gpio, PinName pin, PinMode mode, int value) { gpio_init(gpio, pin); gpio_write(gpio, value); gpio_dir(gpio, PIN_OUTPUT); gpio_mode(gpio, mode); } void gpio_init_in(gpio_t* gpio, PinName pin) { gpio_init_in_ex(gpio, pin, PullDefault); } void gpio_init_in_ex(gpio_t* gpio, PinName pin, PinMode mode) { _gpio_init_in(gpio, pin, mode); } void gpio_init_out(gpio_t* gpio, PinName pin) { gpio_init_out_ex(gpio, pin, 0); } void gpio_init_out_ex(gpio_t* gpio, PinName pin, int value) { _gpio_init_out(gpio, pin, PullNone, value); } void gpio_init_inout(gpio_t* gpio, PinName pin, PinDirection direction, PinMode mode, int value) { if (direction == PIN_INPUT) { _gpio_init_in(gpio, pin, mode); gpio_write(gpio, value); // we prepare the value in case it is switched later } else { _gpio_init_out(gpio, pin, mode, value); } }