Ermanno Brusadin / mbed

mbed library sources

Dependents:   FRDM-KL46Z_LCD_Test FRDM-KL46Z_LCD_Test FRDM-KL46Z_Plantilla FRDM-KL46Z_Plantilla ... more

common/gpio.c@0:6bc4ac881c8e, 2016-07-28 (annotated)

Committer:
ebrus
Date:
Thu Jul 28 15:56:34 2016 +0000
Revision:
0:6bc4ac881c8e
1;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ebrus 0:6bc4ac881c8e 1 /* mbed Microcontroller Library
ebrus 0:6bc4ac881c8e 2 * Copyright (c) 2006-2013 ARM Limited
ebrus 0:6bc4ac881c8e 3 *
ebrus 0:6bc4ac881c8e 4 * Licensed under the Apache License, Version 2.0 (the "License");
ebrus 0:6bc4ac881c8e 5 * you may not use this file except in compliance with the License.
ebrus 0:6bc4ac881c8e 6 * You may obtain a copy of the License at
ebrus 0:6bc4ac881c8e 7 *
ebrus 0:6bc4ac881c8e 8 * http://www.apache.org/licenses/LICENSE-2.0
ebrus 0:6bc4ac881c8e 9 *
ebrus 0:6bc4ac881c8e 10 * Unless required by applicable law or agreed to in writing, software
ebrus 0:6bc4ac881c8e 11 * distributed under the License is distributed on an "AS IS" BASIS,
ebrus 0:6bc4ac881c8e 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
ebrus 0:6bc4ac881c8e 13 * See the License for the specific language governing permissions and
ebrus 0:6bc4ac881c8e 14 * limitations under the License.
ebrus 0:6bc4ac881c8e 15 */
ebrus 0:6bc4ac881c8e 16 #include "gpio_api.h"
ebrus 0:6bc4ac881c8e 17
ebrus 0:6bc4ac881c8e 18 static inline void _gpio_init_in(gpio_t* gpio, PinName pin, PinMode mode)
ebrus 0:6bc4ac881c8e 19 {
ebrus 0:6bc4ac881c8e 20 gpio_init(gpio, pin);
ebrus 0:6bc4ac881c8e 21 if (pin != NC) {
ebrus 0:6bc4ac881c8e 22 gpio_dir(gpio, PIN_INPUT);
ebrus 0:6bc4ac881c8e 23 gpio_mode(gpio, mode);
ebrus 0:6bc4ac881c8e 24 }
ebrus 0:6bc4ac881c8e 25 }
ebrus 0:6bc4ac881c8e 26
ebrus 0:6bc4ac881c8e 27 static inline void _gpio_init_out(gpio_t* gpio, PinName pin, PinMode mode, int value)
ebrus 0:6bc4ac881c8e 28 {
ebrus 0:6bc4ac881c8e 29 gpio_init(gpio, pin);
ebrus 0:6bc4ac881c8e 30 if (pin != NC) {
ebrus 0:6bc4ac881c8e 31 gpio_write(gpio, value);
ebrus 0:6bc4ac881c8e 32 gpio_dir(gpio, PIN_OUTPUT);
ebrus 0:6bc4ac881c8e 33 gpio_mode(gpio, mode);
ebrus 0:6bc4ac881c8e 34 }
ebrus 0:6bc4ac881c8e 35 }
ebrus 0:6bc4ac881c8e 36
ebrus 0:6bc4ac881c8e 37 void gpio_init_in(gpio_t* gpio, PinName pin) {
ebrus 0:6bc4ac881c8e 38 gpio_init_in_ex(gpio, pin, PullDefault);
ebrus 0:6bc4ac881c8e 39 }
ebrus 0:6bc4ac881c8e 40
ebrus 0:6bc4ac881c8e 41 void gpio_init_in_ex(gpio_t* gpio, PinName pin, PinMode mode) {
ebrus 0:6bc4ac881c8e 42 _gpio_init_in(gpio, pin, mode);
ebrus 0:6bc4ac881c8e 43 }
ebrus 0:6bc4ac881c8e 44
ebrus 0:6bc4ac881c8e 45 void gpio_init_out(gpio_t* gpio, PinName pin) {
ebrus 0:6bc4ac881c8e 46 gpio_init_out_ex(gpio, pin, 0);
ebrus 0:6bc4ac881c8e 47 }
ebrus 0:6bc4ac881c8e 48
ebrus 0:6bc4ac881c8e 49 void gpio_init_out_ex(gpio_t* gpio, PinName pin, int value) {
ebrus 0:6bc4ac881c8e 50 _gpio_init_out(gpio, pin, PullNone, value);
ebrus 0:6bc4ac881c8e 51 }
ebrus 0:6bc4ac881c8e 52
ebrus 0:6bc4ac881c8e 53 void gpio_init_inout(gpio_t* gpio, PinName pin, PinDirection direction, PinMode mode, int value) {
ebrus 0:6bc4ac881c8e 54 if (direction == PIN_INPUT) {
ebrus 0:6bc4ac881c8e 55 _gpio_init_in(gpio, pin, mode);
ebrus 0:6bc4ac881c8e 56 if (pin != NC)
ebrus 0:6bc4ac881c8e 57 gpio_write(gpio, value); // we prepare the value in case it is switched later
ebrus 0:6bc4ac881c8e 58 } else {
ebrus 0:6bc4ac881c8e 59 _gpio_init_out(gpio, pin, mode, value);
ebrus 0:6bc4ac881c8e 60 }
ebrus 0:6bc4ac881c8e 61 }