Marco Zecchini / Mbed OS Example_RTOS

Rtos API example

mbed-os/hal/mbed_gpio.c@0:9fca2b23d0ba, 2019-02-23 (annotated)

Committer:
marcozecchini
Date:
Sat Feb 23 12:13:36 2019 +0000
Revision:
0:9fca2b23d0ba
final commit

Who changed what in which revision?

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marcozecchini 0:9fca2b23d0ba 1 /* mbed Microcontroller Library
marcozecchini 0:9fca2b23d0ba 2 * Copyright (c) 2006-2013 ARM Limited
marcozecchini 0:9fca2b23d0ba 3 *
marcozecchini 0:9fca2b23d0ba 4 * Licensed under the Apache License, Version 2.0 (the "License");
marcozecchini 0:9fca2b23d0ba 5 * you may not use this file except in compliance with the License.
marcozecchini 0:9fca2b23d0ba 6 * You may obtain a copy of the License at
marcozecchini 0:9fca2b23d0ba 7 *
marcozecchini 0:9fca2b23d0ba 8 * http://www.apache.org/licenses/LICENSE-2.0
marcozecchini 0:9fca2b23d0ba 9 *
marcozecchini 0:9fca2b23d0ba 10 * Unless required by applicable law or agreed to in writing, software
marcozecchini 0:9fca2b23d0ba 11 * distributed under the License is distributed on an "AS IS" BASIS,
marcozecchini 0:9fca2b23d0ba 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
marcozecchini 0:9fca2b23d0ba 13 * See the License for the specific language governing permissions and
marcozecchini 0:9fca2b23d0ba 14 * limitations under the License.
marcozecchini 0:9fca2b23d0ba 15 */
marcozecchini 0:9fca2b23d0ba 16 #include "hal/gpio_api.h"
marcozecchini 0:9fca2b23d0ba 17
marcozecchini 0:9fca2b23d0ba 18 static inline void _gpio_init_in(gpio_t* gpio, PinName pin, PinMode mode)
marcozecchini 0:9fca2b23d0ba 19 {
marcozecchini 0:9fca2b23d0ba 20 gpio_init(gpio, pin);
marcozecchini 0:9fca2b23d0ba 21 if (pin != NC) {
marcozecchini 0:9fca2b23d0ba 22 gpio_dir(gpio, PIN_INPUT);
marcozecchini 0:9fca2b23d0ba 23 gpio_mode(gpio, mode);
marcozecchini 0:9fca2b23d0ba 24 }
marcozecchini 0:9fca2b23d0ba 25 }
marcozecchini 0:9fca2b23d0ba 26
marcozecchini 0:9fca2b23d0ba 27 static inline void _gpio_init_out(gpio_t* gpio, PinName pin, PinMode mode, int value)
marcozecchini 0:9fca2b23d0ba 28 {
marcozecchini 0:9fca2b23d0ba 29 gpio_init(gpio, pin);
marcozecchini 0:9fca2b23d0ba 30 if (pin != NC) {
marcozecchini 0:9fca2b23d0ba 31 gpio_write(gpio, value);
marcozecchini 0:9fca2b23d0ba 32 gpio_dir(gpio, PIN_OUTPUT);
marcozecchini 0:9fca2b23d0ba 33 gpio_mode(gpio, mode);
marcozecchini 0:9fca2b23d0ba 34 }
marcozecchini 0:9fca2b23d0ba 35 }
marcozecchini 0:9fca2b23d0ba 36
marcozecchini 0:9fca2b23d0ba 37 void gpio_init_in(gpio_t* gpio, PinName pin) {
marcozecchini 0:9fca2b23d0ba 38 gpio_init_in_ex(gpio, pin, PullDefault);
marcozecchini 0:9fca2b23d0ba 39 }
marcozecchini 0:9fca2b23d0ba 40
marcozecchini 0:9fca2b23d0ba 41 void gpio_init_in_ex(gpio_t* gpio, PinName pin, PinMode mode) {
marcozecchini 0:9fca2b23d0ba 42 _gpio_init_in(gpio, pin, mode);
marcozecchini 0:9fca2b23d0ba 43 }
marcozecchini 0:9fca2b23d0ba 44
marcozecchini 0:9fca2b23d0ba 45 void gpio_init_out(gpio_t* gpio, PinName pin) {
marcozecchini 0:9fca2b23d0ba 46 gpio_init_out_ex(gpio, pin, 0);
marcozecchini 0:9fca2b23d0ba 47 }
marcozecchini 0:9fca2b23d0ba 48
marcozecchini 0:9fca2b23d0ba 49 void gpio_init_out_ex(gpio_t* gpio, PinName pin, int value) {
marcozecchini 0:9fca2b23d0ba 50 _gpio_init_out(gpio, pin, PullNone, value);
marcozecchini 0:9fca2b23d0ba 51 }
marcozecchini 0:9fca2b23d0ba 52
marcozecchini 0:9fca2b23d0ba 53 void gpio_init_inout(gpio_t* gpio, PinName pin, PinDirection direction, PinMode mode, int value) {
marcozecchini 0:9fca2b23d0ba 54 if (direction == PIN_INPUT) {
marcozecchini 0:9fca2b23d0ba 55 _gpio_init_in(gpio, pin, mode);
marcozecchini 0:9fca2b23d0ba 56 if (pin != NC)
marcozecchini 0:9fca2b23d0ba 57 gpio_write(gpio, value); // we prepare the value in case it is switched later
marcozecchini 0:9fca2b23d0ba 58 } else {
marcozecchini 0:9fca2b23d0ba 59 _gpio_init_out(gpio, pin, mode, value);
marcozecchini 0:9fca2b23d0ba 60 }
marcozecchini 0:9fca2b23d0ba 61 }