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hal/gpio_api.h
- Committer:
- mbed_official
- Date:
- 2015-01-27
- Revision:
- 455:8bc3a354916d
- Parent:
- 113:65a335a675de
File content as of revision 455:8bc3a354916d:
/* 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. */ #ifndef MBED_GPIO_API_H #define MBED_GPIO_API_H #include "device.h" #ifdef __cplusplus extern "C" { #endif /* Set the given pin as GPIO * @param pin The pin to be set as GPIO * @return The GPIO port mask for this pin **/ uint32_t gpio_set(PinName pin); /* Checks if gpio object is connected (pin was not initialized with NC) * @param pin The pin to be set as GPIO * @return 0 if port is initialized with NC **/ int gpio_is_connected(const gpio_t *obj); /* GPIO object */ void gpio_init(gpio_t *obj, PinName pin); void gpio_mode (gpio_t *obj, PinMode mode); void gpio_dir (gpio_t *obj, PinDirection direction); void gpio_write(gpio_t *obj, int value); int gpio_read (gpio_t *obj); // the following set of functions are generic and are implemented in the common gpio.c file void gpio_init_in(gpio_t* gpio, PinName pin); void gpio_init_in_ex(gpio_t* gpio, PinName pin, PinMode mode); void gpio_init_out(gpio_t* gpio, PinName pin); void gpio_init_out_ex(gpio_t* gpio, PinName pin, int value); void gpio_init_inout(gpio_t* gpio, PinName pin, PinDirection direction, PinMode mode, int value); #ifdef __cplusplus } #endif #endif