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mbed-os/hal/mbed_gpio.c@1:b36bbc1c6d27, 2020-04-11 (annotated)

Committer:
demayer
Date:
Sat Apr 11 08:15:48 2020 +0000
Revision:
1:b36bbc1c6d27
Parent:
0:6bf0743ece18 
IMU-library in .h und .cpp file aufgeteilt

Who changed what in which revision?

UserRevisionLine numberNew contents of line
demayer 0:6bf0743ece18 1 /* mbed Microcontroller Library
demayer 0:6bf0743ece18 2 * Copyright (c) 2006-2013 ARM Limited
demayer 0:6bf0743ece18 3 *
demayer 0:6bf0743ece18 4 * Licensed under the Apache License, Version 2.0 (the "License");
demayer 0:6bf0743ece18 5 * you may not use this file except in compliance with the License.
demayer 0:6bf0743ece18 6 * You may obtain a copy of the License at
demayer 0:6bf0743ece18 7 *
demayer 0:6bf0743ece18 8 * http://www.apache.org/licenses/LICENSE-2.0
demayer 0:6bf0743ece18 9 *
demayer 0:6bf0743ece18 10 * Unless required by applicable law or agreed to in writing, software
demayer 0:6bf0743ece18 11 * distributed under the License is distributed on an "AS IS" BASIS,
demayer 0:6bf0743ece18 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
demayer 0:6bf0743ece18 13 * See the License for the specific language governing permissions and
demayer 0:6bf0743ece18 14 * limitations under the License.
demayer 0:6bf0743ece18 15 */
demayer 0:6bf0743ece18 16 #include "hal/gpio_api.h"
demayer 0:6bf0743ece18 17
demayer 0:6bf0743ece18 18 static inline void _gpio_init_in(gpio_t* gpio, PinName pin, PinMode mode)
demayer 0:6bf0743ece18 19 {
demayer 0:6bf0743ece18 20 gpio_init(gpio, pin);
demayer 0:6bf0743ece18 21 if (pin != NC) {
demayer 0:6bf0743ece18 22 gpio_dir(gpio, PIN_INPUT);
demayer 0:6bf0743ece18 23 gpio_mode(gpio, mode);
demayer 0:6bf0743ece18 24 }
demayer 0:6bf0743ece18 25 }
demayer 0:6bf0743ece18 26
demayer 0:6bf0743ece18 27 static inline void _gpio_init_out(gpio_t* gpio, PinName pin, PinMode mode, int value)
demayer 0:6bf0743ece18 28 {
demayer 0:6bf0743ece18 29 gpio_init(gpio, pin);
demayer 0:6bf0743ece18 30 if (pin != NC) {
demayer 0:6bf0743ece18 31 gpio_write(gpio, value);
demayer 0:6bf0743ece18 32 gpio_dir(gpio, PIN_OUTPUT);
demayer 0:6bf0743ece18 33 gpio_mode(gpio, mode);
demayer 0:6bf0743ece18 34 }
demayer 0:6bf0743ece18 35 }
demayer 0:6bf0743ece18 36
demayer 0:6bf0743ece18 37 void gpio_init_in(gpio_t* gpio, PinName pin) {
demayer 0:6bf0743ece18 38 gpio_init_in_ex(gpio, pin, PullDefault);
demayer 0:6bf0743ece18 39 }
demayer 0:6bf0743ece18 40
demayer 0:6bf0743ece18 41 void gpio_init_in_ex(gpio_t* gpio, PinName pin, PinMode mode) {
demayer 0:6bf0743ece18 42 _gpio_init_in(gpio, pin, mode);
demayer 0:6bf0743ece18 43 }
demayer 0:6bf0743ece18 44
demayer 0:6bf0743ece18 45 void gpio_init_out(gpio_t* gpio, PinName pin) {
demayer 0:6bf0743ece18 46 gpio_init_out_ex(gpio, pin, 0);
demayer 0:6bf0743ece18 47 }
demayer 0:6bf0743ece18 48
demayer 0:6bf0743ece18 49 void gpio_init_out_ex(gpio_t* gpio, PinName pin, int value) {
demayer 0:6bf0743ece18 50 _gpio_init_out(gpio, pin, PullNone, value);
demayer 0:6bf0743ece18 51 }
demayer 0:6bf0743ece18 52
demayer 0:6bf0743ece18 53 void gpio_init_inout(gpio_t* gpio, PinName pin, PinDirection direction, PinMode mode, int value) {
demayer 0:6bf0743ece18 54 if (direction == PIN_INPUT) {
demayer 0:6bf0743ece18 55 _gpio_init_in(gpio, pin, mode);
demayer 0:6bf0743ece18 56 if (pin != NC)
demayer 0:6bf0743ece18 57 gpio_write(gpio, value); // we prepare the value in case it is switched later
demayer 0:6bf0743ece18 58 } else {
demayer 0:6bf0743ece18 59 _gpio_init_out(gpio, pin, mode, value);
demayer 0:6bf0743ece18 60 }
demayer 0:6bf0743ece18 61 }