PHung Tung / SRC_STM32F7

SPKT

Dependents:   WAV

common/gpio.c@0:e87aa4c49e95, 2019-06-04 (annotated)

Committer:
phungductung
Date:
Tue Jun 04 21:51:46 2019 +0000
Revision:
0:e87aa4c49e95
libray

Who changed what in which revision?

UserRevisionLine numberNew contents of line
phungductung 0:e87aa4c49e95 1 /* mbed Microcontroller Library
phungductung 0:e87aa4c49e95 2 * Copyright (c) 2006-2013 ARM Limited
phungductung 0:e87aa4c49e95 3 *
phungductung 0:e87aa4c49e95 4 * Licensed under the Apache License, Version 2.0 (the "License");
phungductung 0:e87aa4c49e95 5 * you may not use this file except in compliance with the License.
phungductung 0:e87aa4c49e95 6 * You may obtain a copy of the License at
phungductung 0:e87aa4c49e95 7 *
phungductung 0:e87aa4c49e95 8 * http://www.apache.org/licenses/LICENSE-2.0
phungductung 0:e87aa4c49e95 9 *
phungductung 0:e87aa4c49e95 10 * Unless required by applicable law or agreed to in writing, software
phungductung 0:e87aa4c49e95 11 * distributed under the License is distributed on an "AS IS" BASIS,
phungductung 0:e87aa4c49e95 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
phungductung 0:e87aa4c49e95 13 * See the License for the specific language governing permissions and
phungductung 0:e87aa4c49e95 14 * limitations under the License.
phungductung 0:e87aa4c49e95 15 */
phungductung 0:e87aa4c49e95 16 #include "gpio_api.h"
phungductung 0:e87aa4c49e95 17
phungductung 0:e87aa4c49e95 18 static inline void _gpio_init_in(gpio_t* gpio, PinName pin, PinMode mode)
phungductung 0:e87aa4c49e95 19 {
phungductung 0:e87aa4c49e95 20 gpio_init(gpio, pin);
phungductung 0:e87aa4c49e95 21 if (pin != NC) {
phungductung 0:e87aa4c49e95 22 gpio_dir(gpio, PIN_INPUT);
phungductung 0:e87aa4c49e95 23 gpio_mode(gpio, mode);
phungductung 0:e87aa4c49e95 24 }
phungductung 0:e87aa4c49e95 25 }
phungductung 0:e87aa4c49e95 26
phungductung 0:e87aa4c49e95 27 static inline void _gpio_init_out(gpio_t* gpio, PinName pin, PinMode mode, int value)
phungductung 0:e87aa4c49e95 28 {
phungductung 0:e87aa4c49e95 29 gpio_init(gpio, pin);
phungductung 0:e87aa4c49e95 30 if (pin != NC) {
phungductung 0:e87aa4c49e95 31 gpio_write(gpio, value);
phungductung 0:e87aa4c49e95 32 gpio_dir(gpio, PIN_OUTPUT);
phungductung 0:e87aa4c49e95 33 gpio_mode(gpio, mode);
phungductung 0:e87aa4c49e95 34 }
phungductung 0:e87aa4c49e95 35 }
phungductung 0:e87aa4c49e95 36
phungductung 0:e87aa4c49e95 37 void gpio_init_in(gpio_t* gpio, PinName pin) {
phungductung 0:e87aa4c49e95 38 gpio_init_in_ex(gpio, pin, PullDefault);
phungductung 0:e87aa4c49e95 39 }
phungductung 0:e87aa4c49e95 40
phungductung 0:e87aa4c49e95 41 void gpio_init_in_ex(gpio_t* gpio, PinName pin, PinMode mode) {
phungductung 0:e87aa4c49e95 42 _gpio_init_in(gpio, pin, mode);
phungductung 0:e87aa4c49e95 43 }
phungductung 0:e87aa4c49e95 44
phungductung 0:e87aa4c49e95 45 void gpio_init_out(gpio_t* gpio, PinName pin) {
phungductung 0:e87aa4c49e95 46 gpio_init_out_ex(gpio, pin, 0);
phungductung 0:e87aa4c49e95 47 }
phungductung 0:e87aa4c49e95 48
phungductung 0:e87aa4c49e95 49 void gpio_init_out_ex(gpio_t* gpio, PinName pin, int value) {
phungductung 0:e87aa4c49e95 50 _gpio_init_out(gpio, pin, PullNone, value);
phungductung 0:e87aa4c49e95 51 }
phungductung 0:e87aa4c49e95 52
phungductung 0:e87aa4c49e95 53 void gpio_init_inout(gpio_t* gpio, PinName pin, PinDirection direction, PinMode mode, int value) {
phungductung 0:e87aa4c49e95 54 if (direction == PIN_INPUT) {
phungductung 0:e87aa4c49e95 55 _gpio_init_in(gpio, pin, mode);
phungductung 0:e87aa4c49e95 56 if (pin != NC)
phungductung 0:e87aa4c49e95 57 gpio_write(gpio, value); // we prepare the value in case it is switched later
phungductung 0:e87aa4c49e95 58 } else {
phungductung 0:e87aa4c49e95 59 _gpio_init_out(gpio, pin, mode, value);
phungductung 0:e87aa4c49e95 60 }
phungductung 0:e87aa4c49e95 61 }