BA / Mbed OS BaBoRo1

Erste version der Software für der Prototyp

mbed-os/hal/mbed_gpio.c@0:380207fcb5c1, 2018-03-29 (annotated)

Committer:
borlanic
Date:
Thu Mar 29 07:02:09 2018 +0000
Revision:
0:380207fcb5c1
Encoder, IMU --> OK; Controller --> in bearbeitung

Who changed what in which revision?

UserRevisionLine numberNew contents of line
borlanic 0:380207fcb5c1 1 /* mbed Microcontroller Library
borlanic 0:380207fcb5c1 2 * Copyright (c) 2006-2013 ARM Limited
borlanic 0:380207fcb5c1 3 *
borlanic 0:380207fcb5c1 4 * Licensed under the Apache License, Version 2.0 (the "License");
borlanic 0:380207fcb5c1 5 * you may not use this file except in compliance with the License.
borlanic 0:380207fcb5c1 6 * You may obtain a copy of the License at
borlanic 0:380207fcb5c1 7 *
borlanic 0:380207fcb5c1 8 * http://www.apache.org/licenses/LICENSE-2.0
borlanic 0:380207fcb5c1 9 *
borlanic 0:380207fcb5c1 10 * Unless required by applicable law or agreed to in writing, software
borlanic 0:380207fcb5c1 11 * distributed under the License is distributed on an "AS IS" BASIS,
borlanic 0:380207fcb5c1 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
borlanic 0:380207fcb5c1 13 * See the License for the specific language governing permissions and
borlanic 0:380207fcb5c1 14 * limitations under the License.
borlanic 0:380207fcb5c1 15 */
borlanic 0:380207fcb5c1 16 #include "hal/gpio_api.h"
borlanic 0:380207fcb5c1 17
borlanic 0:380207fcb5c1 18 static inline void _gpio_init_in(gpio_t* gpio, PinName pin, PinMode mode)
borlanic 0:380207fcb5c1 19 {
borlanic 0:380207fcb5c1 20 gpio_init(gpio, pin);
borlanic 0:380207fcb5c1 21 if (pin != NC) {
borlanic 0:380207fcb5c1 22 gpio_dir(gpio, PIN_INPUT);
borlanic 0:380207fcb5c1 23 gpio_mode(gpio, mode);
borlanic 0:380207fcb5c1 24 }
borlanic 0:380207fcb5c1 25 }
borlanic 0:380207fcb5c1 26
borlanic 0:380207fcb5c1 27 static inline void _gpio_init_out(gpio_t* gpio, PinName pin, PinMode mode, int value)
borlanic 0:380207fcb5c1 28 {
borlanic 0:380207fcb5c1 29 gpio_init(gpio, pin);
borlanic 0:380207fcb5c1 30 if (pin != NC) {
borlanic 0:380207fcb5c1 31 gpio_write(gpio, value);
borlanic 0:380207fcb5c1 32 gpio_dir(gpio, PIN_OUTPUT);
borlanic 0:380207fcb5c1 33 gpio_mode(gpio, mode);
borlanic 0:380207fcb5c1 34 }
borlanic 0:380207fcb5c1 35 }
borlanic 0:380207fcb5c1 36
borlanic 0:380207fcb5c1 37 void gpio_init_in(gpio_t* gpio, PinName pin) {
borlanic 0:380207fcb5c1 38 gpio_init_in_ex(gpio, pin, PullDefault);
borlanic 0:380207fcb5c1 39 }
borlanic 0:380207fcb5c1 40
borlanic 0:380207fcb5c1 41 void gpio_init_in_ex(gpio_t* gpio, PinName pin, PinMode mode) {
borlanic 0:380207fcb5c1 42 _gpio_init_in(gpio, pin, mode);
borlanic 0:380207fcb5c1 43 }
borlanic 0:380207fcb5c1 44
borlanic 0:380207fcb5c1 45 void gpio_init_out(gpio_t* gpio, PinName pin) {
borlanic 0:380207fcb5c1 46 gpio_init_out_ex(gpio, pin, 0);
borlanic 0:380207fcb5c1 47 }
borlanic 0:380207fcb5c1 48
borlanic 0:380207fcb5c1 49 void gpio_init_out_ex(gpio_t* gpio, PinName pin, int value) {
borlanic 0:380207fcb5c1 50 _gpio_init_out(gpio, pin, PullNone, value);
borlanic 0:380207fcb5c1 51 }
borlanic 0:380207fcb5c1 52
borlanic 0:380207fcb5c1 53 void gpio_init_inout(gpio_t* gpio, PinName pin, PinDirection direction, PinMode mode, int value) {
borlanic 0:380207fcb5c1 54 if (direction == PIN_INPUT) {
borlanic 0:380207fcb5c1 55 _gpio_init_in(gpio, pin, mode);
borlanic 0:380207fcb5c1 56 if (pin != NC)
borlanic 0:380207fcb5c1 57 gpio_write(gpio, value); // we prepare the value in case it is switched later
borlanic 0:380207fcb5c1 58 } else {
borlanic 0:380207fcb5c1 59 _gpio_init_out(gpio, pin, mode, value);
borlanic 0:380207fcb5c1 60 }
borlanic 0:380207fcb5c1 61 }