Mateusz Kowalik / Application

USB Serial application

Fork of USBSerial_HelloWorld by Samuel Mokrani

mbed-dev/hal/mbed_gpio.c@10:41552d038a69, 2017-01-10 (annotated)

Committer:
Zaitsev
Date:
Tue Jan 10 20:42:26 2017 +0000
Revision:
10:41552d038a69
USB Serial bi-directional bridge

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Zaitsev 10:41552d038a69 1 /* mbed Microcontroller Library
Zaitsev 10:41552d038a69 2 * Copyright (c) 2006-2013 ARM Limited
Zaitsev 10:41552d038a69 3 *
Zaitsev 10:41552d038a69 4 * Licensed under the Apache License, Version 2.0 (the "License");
Zaitsev 10:41552d038a69 5 * you may not use this file except in compliance with the License.
Zaitsev 10:41552d038a69 6 * You may obtain a copy of the License at
Zaitsev 10:41552d038a69 7 *
Zaitsev 10:41552d038a69 8 * http://www.apache.org/licenses/LICENSE-2.0
Zaitsev 10:41552d038a69 9 *
Zaitsev 10:41552d038a69 10 * Unless required by applicable law or agreed to in writing, software
Zaitsev 10:41552d038a69 11 * distributed under the License is distributed on an "AS IS" BASIS,
Zaitsev 10:41552d038a69 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
Zaitsev 10:41552d038a69 13 * See the License for the specific language governing permissions and
Zaitsev 10:41552d038a69 14 * limitations under the License.
Zaitsev 10:41552d038a69 15 */
Zaitsev 10:41552d038a69 16 #include "hal/gpio_api.h"
Zaitsev 10:41552d038a69 17
Zaitsev 10:41552d038a69 18 static inline void _gpio_init_in(gpio_t* gpio, PinName pin, PinMode mode)
Zaitsev 10:41552d038a69 19 {
Zaitsev 10:41552d038a69 20 gpio_init(gpio, pin);
Zaitsev 10:41552d038a69 21 if (pin != NC) {
Zaitsev 10:41552d038a69 22 gpio_dir(gpio, PIN_INPUT);
Zaitsev 10:41552d038a69 23 gpio_mode(gpio, mode);
Zaitsev 10:41552d038a69 24 }
Zaitsev 10:41552d038a69 25 }
Zaitsev 10:41552d038a69 26
Zaitsev 10:41552d038a69 27 static inline void _gpio_init_out(gpio_t* gpio, PinName pin, PinMode mode, int value)
Zaitsev 10:41552d038a69 28 {
Zaitsev 10:41552d038a69 29 gpio_init(gpio, pin);
Zaitsev 10:41552d038a69 30 if (pin != NC) {
Zaitsev 10:41552d038a69 31 gpio_write(gpio, value);
Zaitsev 10:41552d038a69 32 gpio_dir(gpio, PIN_OUTPUT);
Zaitsev 10:41552d038a69 33 gpio_mode(gpio, mode);
Zaitsev 10:41552d038a69 34 }
Zaitsev 10:41552d038a69 35 }
Zaitsev 10:41552d038a69 36
Zaitsev 10:41552d038a69 37 void gpio_init_in(gpio_t* gpio, PinName pin) {
Zaitsev 10:41552d038a69 38 gpio_init_in_ex(gpio, pin, PullDefault);
Zaitsev 10:41552d038a69 39 }
Zaitsev 10:41552d038a69 40
Zaitsev 10:41552d038a69 41 void gpio_init_in_ex(gpio_t* gpio, PinName pin, PinMode mode) {
Zaitsev 10:41552d038a69 42 _gpio_init_in(gpio, pin, mode);
Zaitsev 10:41552d038a69 43 }
Zaitsev 10:41552d038a69 44
Zaitsev 10:41552d038a69 45 void gpio_init_out(gpio_t* gpio, PinName pin) {
Zaitsev 10:41552d038a69 46 gpio_init_out_ex(gpio, pin, 0);
Zaitsev 10:41552d038a69 47 }
Zaitsev 10:41552d038a69 48
Zaitsev 10:41552d038a69 49 void gpio_init_out_ex(gpio_t* gpio, PinName pin, int value) {
Zaitsev 10:41552d038a69 50 _gpio_init_out(gpio, pin, PullNone, value);
Zaitsev 10:41552d038a69 51 }
Zaitsev 10:41552d038a69 52
Zaitsev 10:41552d038a69 53 void gpio_init_inout(gpio_t* gpio, PinName pin, PinDirection direction, PinMode mode, int value) {
Zaitsev 10:41552d038a69 54 if (direction == PIN_INPUT) {
Zaitsev 10:41552d038a69 55 _gpio_init_in(gpio, pin, mode);
Zaitsev 10:41552d038a69 56 if (pin != NC)
Zaitsev 10:41552d038a69 57 gpio_write(gpio, value); // we prepare the value in case it is switched later
Zaitsev 10:41552d038a69 58 } else {
Zaitsev 10:41552d038a69 59 _gpio_init_out(gpio, pin, mode, value);
Zaitsev 10:41552d038a69 60 }
Zaitsev 10:41552d038a69 61 }