Kev Mann / mbed-dev-OS5_10_4

RTC auf true

hal/mbed_gpio.c@2:7aab896b1a3b, 2019-03-13 (annotated)

Committer:
kevman
Date:
Wed Mar 13 11:03:24 2019 +0000
Revision:
2:7aab896b1a3b
Parent:
0:38ceb79fef03 
2019-03-13

Who changed what in which revision?

UserRevisionLine numberNew contents of line
kevman 0:38ceb79fef03 1 /* mbed Microcontroller Library
kevman 0:38ceb79fef03 2 * Copyright (c) 2006-2013 ARM Limited
kevman 0:38ceb79fef03 3 *
kevman 0:38ceb79fef03 4 * Licensed under the Apache License, Version 2.0 (the "License");
kevman 0:38ceb79fef03 5 * you may not use this file except in compliance with the License.
kevman 0:38ceb79fef03 6 * You may obtain a copy of the License at
kevman 0:38ceb79fef03 7 *
kevman 0:38ceb79fef03 8 * http://www.apache.org/licenses/LICENSE-2.0
kevman 0:38ceb79fef03 9 *
kevman 0:38ceb79fef03 10 * Unless required by applicable law or agreed to in writing, software
kevman 0:38ceb79fef03 11 * distributed under the License is distributed on an "AS IS" BASIS,
kevman 0:38ceb79fef03 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
kevman 0:38ceb79fef03 13 * See the License for the specific language governing permissions and
kevman 0:38ceb79fef03 14 * limitations under the License.
kevman 0:38ceb79fef03 15 */
kevman 0:38ceb79fef03 16 #include "hal/gpio_api.h"
kevman 0:38ceb79fef03 17
kevman 0:38ceb79fef03 18 static inline void _gpio_init_in(gpio_t *gpio, PinName pin, PinMode mode)
kevman 0:38ceb79fef03 19 {
kevman 0:38ceb79fef03 20 gpio_init(gpio, pin);
kevman 0:38ceb79fef03 21 if (pin != NC) {
kevman 0:38ceb79fef03 22 gpio_dir(gpio, PIN_INPUT);
kevman 0:38ceb79fef03 23 gpio_mode(gpio, mode);
kevman 0:38ceb79fef03 24 }
kevman 0:38ceb79fef03 25 }
kevman 0:38ceb79fef03 26
kevman 0:38ceb79fef03 27 static inline void _gpio_init_out(gpio_t *gpio, PinName pin, PinMode mode, int value)
kevman 0:38ceb79fef03 28 {
kevman 0:38ceb79fef03 29 gpio_init(gpio, pin);
kevman 0:38ceb79fef03 30 if (pin != NC) {
kevman 0:38ceb79fef03 31 gpio_write(gpio, value);
kevman 0:38ceb79fef03 32 gpio_dir(gpio, PIN_OUTPUT);
kevman 0:38ceb79fef03 33 gpio_mode(gpio, mode);
kevman 0:38ceb79fef03 34 }
kevman 0:38ceb79fef03 35 }
kevman 0:38ceb79fef03 36
kevman 0:38ceb79fef03 37 void gpio_init_in(gpio_t *gpio, PinName pin)
kevman 0:38ceb79fef03 38 {
kevman 0:38ceb79fef03 39 gpio_init_in_ex(gpio, pin, PullDefault);
kevman 0:38ceb79fef03 40 }
kevman 0:38ceb79fef03 41
kevman 0:38ceb79fef03 42 void gpio_init_in_ex(gpio_t *gpio, PinName pin, PinMode mode)
kevman 0:38ceb79fef03 43 {
kevman 0:38ceb79fef03 44 _gpio_init_in(gpio, pin, mode);
kevman 0:38ceb79fef03 45 }
kevman 0:38ceb79fef03 46
kevman 0:38ceb79fef03 47 void gpio_init_out(gpio_t *gpio, PinName pin)
kevman 0:38ceb79fef03 48 {
kevman 0:38ceb79fef03 49 gpio_init_out_ex(gpio, pin, 0);
kevman 0:38ceb79fef03 50 }
kevman 0:38ceb79fef03 51
kevman 0:38ceb79fef03 52 void gpio_init_out_ex(gpio_t *gpio, PinName pin, int value)
kevman 0:38ceb79fef03 53 {
kevman 0:38ceb79fef03 54 _gpio_init_out(gpio, pin, PullNone, value);
kevman 0:38ceb79fef03 55 }
kevman 0:38ceb79fef03 56
kevman 0:38ceb79fef03 57 void gpio_init_inout(gpio_t *gpio, PinName pin, PinDirection direction, PinMode mode, int value)
kevman 0:38ceb79fef03 58 {
kevman 0:38ceb79fef03 59 if (direction == PIN_INPUT) {
kevman 0:38ceb79fef03 60 _gpio_init_in(gpio, pin, mode);
kevman 0:38ceb79fef03 61 if (pin != NC) {
kevman 0:38ceb79fef03 62 gpio_write(gpio, value); // we prepare the value in case it is switched later
kevman 0:38ceb79fef03 63 }
kevman 0:38ceb79fef03 64 } else {
kevman 0:38ceb79fef03 65 _gpio_init_out(gpio, pin, mode, value);
kevman 0:38ceb79fef03 66 }
kevman 0:38ceb79fef03 67 }