Daiki Kato / mbed-os-lychee

mbed-os for GR-LYCHEE

Dependents:   mbed-os-example-blinky-gr-lychee GR-Boads_Camera_sample GR-Boards_Audio_Recoder GR-Boads_Camera_DisplayApp ... more

hal/mbed_gpio.c@0:f782d9c66c49, 2018-02-02 (annotated)

Committer:
dkato
Date:
Fri Feb 02 05:42:23 2018 +0000
Revision:
0:f782d9c66c49
mbed-os for GR-LYCHEE

Who changed what in which revision?

UserRevisionLine numberNew contents of line
dkato 0:f782d9c66c49 1 /* mbed Microcontroller Library
dkato 0:f782d9c66c49 2 * Copyright (c) 2006-2013 ARM Limited
dkato 0:f782d9c66c49 3 *
dkato 0:f782d9c66c49 4 * Licensed under the Apache License, Version 2.0 (the "License");
dkato 0:f782d9c66c49 5 * you may not use this file except in compliance with the License.
dkato 0:f782d9c66c49 6 * You may obtain a copy of the License at
dkato 0:f782d9c66c49 7 *
dkato 0:f782d9c66c49 8 * http://www.apache.org/licenses/LICENSE-2.0
dkato 0:f782d9c66c49 9 *
dkato 0:f782d9c66c49 10 * Unless required by applicable law or agreed to in writing, software
dkato 0:f782d9c66c49 11 * distributed under the License is distributed on an "AS IS" BASIS,
dkato 0:f782d9c66c49 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
dkato 0:f782d9c66c49 13 * See the License for the specific language governing permissions and
dkato 0:f782d9c66c49 14 * limitations under the License.
dkato 0:f782d9c66c49 15 */
dkato 0:f782d9c66c49 16 #include "hal/gpio_api.h"
dkato 0:f782d9c66c49 17
dkato 0:f782d9c66c49 18 static inline void _gpio_init_in(gpio_t* gpio, PinName pin, PinMode mode)
dkato 0:f782d9c66c49 19 {
dkato 0:f782d9c66c49 20 gpio_init(gpio, pin);
dkato 0:f782d9c66c49 21 if (pin != NC) {
dkato 0:f782d9c66c49 22 gpio_dir(gpio, PIN_INPUT);
dkato 0:f782d9c66c49 23 gpio_mode(gpio, mode);
dkato 0:f782d9c66c49 24 }
dkato 0:f782d9c66c49 25 }
dkato 0:f782d9c66c49 26
dkato 0:f782d9c66c49 27 static inline void _gpio_init_out(gpio_t* gpio, PinName pin, PinMode mode, int value)
dkato 0:f782d9c66c49 28 {
dkato 0:f782d9c66c49 29 gpio_init(gpio, pin);
dkato 0:f782d9c66c49 30 if (pin != NC) {
dkato 0:f782d9c66c49 31 gpio_write(gpio, value);
dkato 0:f782d9c66c49 32 gpio_dir(gpio, PIN_OUTPUT);
dkato 0:f782d9c66c49 33 gpio_mode(gpio, mode);
dkato 0:f782d9c66c49 34 }
dkato 0:f782d9c66c49 35 }
dkato 0:f782d9c66c49 36
dkato 0:f782d9c66c49 37 void gpio_init_in(gpio_t* gpio, PinName pin) {
dkato 0:f782d9c66c49 38 gpio_init_in_ex(gpio, pin, PullDefault);
dkato 0:f782d9c66c49 39 }
dkato 0:f782d9c66c49 40
dkato 0:f782d9c66c49 41 void gpio_init_in_ex(gpio_t* gpio, PinName pin, PinMode mode) {
dkato 0:f782d9c66c49 42 _gpio_init_in(gpio, pin, mode);
dkato 0:f782d9c66c49 43 }
dkato 0:f782d9c66c49 44
dkato 0:f782d9c66c49 45 void gpio_init_out(gpio_t* gpio, PinName pin) {
dkato 0:f782d9c66c49 46 gpio_init_out_ex(gpio, pin, 0);
dkato 0:f782d9c66c49 47 }
dkato 0:f782d9c66c49 48
dkato 0:f782d9c66c49 49 void gpio_init_out_ex(gpio_t* gpio, PinName pin, int value) {
dkato 0:f782d9c66c49 50 _gpio_init_out(gpio, pin, PullNone, value);
dkato 0:f782d9c66c49 51 }
dkato 0:f782d9c66c49 52
dkato 0:f782d9c66c49 53 void gpio_init_inout(gpio_t* gpio, PinName pin, PinDirection direction, PinMode mode, int value) {
dkato 0:f782d9c66c49 54 if (direction == PIN_INPUT) {
dkato 0:f782d9c66c49 55 _gpio_init_in(gpio, pin, mode);
dkato 0:f782d9c66c49 56 if (pin != NC)
dkato 0:f782d9c66c49 57 gpio_write(gpio, value); // we prepare the value in case it is switched later
dkato 0:f782d9c66c49 58 } else {
dkato 0:f782d9c66c49 59 _gpio_init_out(gpio, pin, mode, value);
dkato 0:f782d9c66c49 60 }
dkato 0:f782d9c66c49 61 }