Magnificent7 / Hackathon

Includes library modifications to allow access to AIN_4 (AIN_0 / 5)

mbd_os/hal/common/mbed_gpio.c@0:eafc3fd41f75, 2016-09-20 (annotated)

Committer:
bryantaylor
Date:
Tue Sep 20 21:26:12 2016 +0000
Revision:
0:eafc3fd41f75
hackathon

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bryantaylor 0:eafc3fd41f75 1 /* mbed Microcontroller Library
bryantaylor 0:eafc3fd41f75 2 * Copyright (c) 2006-2013 ARM Limited
bryantaylor 0:eafc3fd41f75 3 *
bryantaylor 0:eafc3fd41f75 4 * Licensed under the Apache License, Version 2.0 (the "License");
bryantaylor 0:eafc3fd41f75 5 * you may not use this file except in compliance with the License.
bryantaylor 0:eafc3fd41f75 6 * You may obtain a copy of the License at
bryantaylor 0:eafc3fd41f75 7 *
bryantaylor 0:eafc3fd41f75 8 * http://www.apache.org/licenses/LICENSE-2.0
bryantaylor 0:eafc3fd41f75 9 *
bryantaylor 0:eafc3fd41f75 10 * Unless required by applicable law or agreed to in writing, software
bryantaylor 0:eafc3fd41f75 11 * distributed under the License is distributed on an "AS IS" BASIS,
bryantaylor 0:eafc3fd41f75 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
bryantaylor 0:eafc3fd41f75 13 * See the License for the specific language governing permissions and
bryantaylor 0:eafc3fd41f75 14 * limitations under the License.
bryantaylor 0:eafc3fd41f75 15 */
bryantaylor 0:eafc3fd41f75 16 #include "gpio_api.h"
bryantaylor 0:eafc3fd41f75 17
bryantaylor 0:eafc3fd41f75 18 static inline void _gpio_init_in(gpio_t* gpio, PinName pin, PinMode mode)
bryantaylor 0:eafc3fd41f75 19 {
bryantaylor 0:eafc3fd41f75 20 gpio_init(gpio, pin);
bryantaylor 0:eafc3fd41f75 21 if (pin != NC) {
bryantaylor 0:eafc3fd41f75 22 gpio_dir(gpio, PIN_INPUT);
bryantaylor 0:eafc3fd41f75 23 gpio_mode(gpio, mode);
bryantaylor 0:eafc3fd41f75 24 }
bryantaylor 0:eafc3fd41f75 25 }
bryantaylor 0:eafc3fd41f75 26
bryantaylor 0:eafc3fd41f75 27 static inline void _gpio_init_out(gpio_t* gpio, PinName pin, PinMode mode, int value)
bryantaylor 0:eafc3fd41f75 28 {
bryantaylor 0:eafc3fd41f75 29 gpio_init(gpio, pin);
bryantaylor 0:eafc3fd41f75 30 if (pin != NC) {
bryantaylor 0:eafc3fd41f75 31 gpio_write(gpio, value);
bryantaylor 0:eafc3fd41f75 32 gpio_dir(gpio, PIN_OUTPUT);
bryantaylor 0:eafc3fd41f75 33 gpio_mode(gpio, mode);
bryantaylor 0:eafc3fd41f75 34 }
bryantaylor 0:eafc3fd41f75 35 }
bryantaylor 0:eafc3fd41f75 36
bryantaylor 0:eafc3fd41f75 37 void gpio_init_in(gpio_t* gpio, PinName pin) {
bryantaylor 0:eafc3fd41f75 38 gpio_init_in_ex(gpio, pin, PullDefault);
bryantaylor 0:eafc3fd41f75 39 }
bryantaylor 0:eafc3fd41f75 40
bryantaylor 0:eafc3fd41f75 41 void gpio_init_in_ex(gpio_t* gpio, PinName pin, PinMode mode) {
bryantaylor 0:eafc3fd41f75 42 _gpio_init_in(gpio, pin, mode);
bryantaylor 0:eafc3fd41f75 43 }
bryantaylor 0:eafc3fd41f75 44
bryantaylor 0:eafc3fd41f75 45 void gpio_init_out(gpio_t* gpio, PinName pin) {
bryantaylor 0:eafc3fd41f75 46 gpio_init_out_ex(gpio, pin, 0);
bryantaylor 0:eafc3fd41f75 47 }
bryantaylor 0:eafc3fd41f75 48
bryantaylor 0:eafc3fd41f75 49 void gpio_init_out_ex(gpio_t* gpio, PinName pin, int value) {
bryantaylor 0:eafc3fd41f75 50 _gpio_init_out(gpio, pin, PullNone, value);
bryantaylor 0:eafc3fd41f75 51 }
bryantaylor 0:eafc3fd41f75 52
bryantaylor 0:eafc3fd41f75 53 void gpio_init_inout(gpio_t* gpio, PinName pin, PinDirection direction, PinMode mode, int value) {
bryantaylor 0:eafc3fd41f75 54 if (direction == PIN_INPUT) {
bryantaylor 0:eafc3fd41f75 55 _gpio_init_in(gpio, pin, mode);
bryantaylor 0:eafc3fd41f75 56 if (pin != NC)
bryantaylor 0:eafc3fd41f75 57 gpio_write(gpio, value); // we prepare the value in case it is switched later
bryantaylor 0:eafc3fd41f75 58 } else {
bryantaylor 0:eafc3fd41f75 59 _gpio_init_out(gpio, pin, mode, value);
bryantaylor 0:eafc3fd41f75 60 }
bryantaylor 0:eafc3fd41f75 61 }