spinal cord / PokittoLib_

PokittoLib is the library needed for programming the Pokitto DIY game console (www.pokitto.com)

mbed-pokitto/common/gpio.c@5:ea7377f3d1af, 2017-10-11 (annotated)

Committer:
Pokitto
Date:
Wed Oct 11 20:35:27 2017 +0000
Revision:
5:ea7377f3d1af
Fixed PokittoLib. Includes a working custom mbed-src

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Pokitto 5:ea7377f3d1af 1 /* mbed Microcontroller Library
Pokitto 5:ea7377f3d1af 2 * Copyright (c) 2006-2013 ARM Limited
Pokitto 5:ea7377f3d1af 3 *
Pokitto 5:ea7377f3d1af 4 * Licensed under the Apache License, Version 2.0 (the "License");
Pokitto 5:ea7377f3d1af 5 * you may not use this file except in compliance with the License.
Pokitto 5:ea7377f3d1af 6 * You may obtain a copy of the License at
Pokitto 5:ea7377f3d1af 7 *
Pokitto 5:ea7377f3d1af 8 * http://www.apache.org/licenses/LICENSE-2.0
Pokitto 5:ea7377f3d1af 9 *
Pokitto 5:ea7377f3d1af 10 * Unless required by applicable law or agreed to in writing, software
Pokitto 5:ea7377f3d1af 11 * distributed under the License is distributed on an "AS IS" BASIS,
Pokitto 5:ea7377f3d1af 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
Pokitto 5:ea7377f3d1af 13 * See the License for the specific language governing permissions and
Pokitto 5:ea7377f3d1af 14 * limitations under the License.
Pokitto 5:ea7377f3d1af 15 */
Pokitto 5:ea7377f3d1af 16 #include "gpio_api.h"
Pokitto 5:ea7377f3d1af 17
Pokitto 5:ea7377f3d1af 18 static inline void _gpio_init_in(gpio_t* gpio, PinName pin, PinMode mode)
Pokitto 5:ea7377f3d1af 19 {
Pokitto 5:ea7377f3d1af 20 gpio_init(gpio, pin);
Pokitto 5:ea7377f3d1af 21 if (pin != NC) {
Pokitto 5:ea7377f3d1af 22 gpio_dir(gpio, PIN_INPUT);
Pokitto 5:ea7377f3d1af 23 gpio_mode(gpio, mode);
Pokitto 5:ea7377f3d1af 24 }
Pokitto 5:ea7377f3d1af 25 }
Pokitto 5:ea7377f3d1af 26
Pokitto 5:ea7377f3d1af 27 static inline void _gpio_init_out(gpio_t* gpio, PinName pin, PinMode mode, int value)
Pokitto 5:ea7377f3d1af 28 {
Pokitto 5:ea7377f3d1af 29 gpio_init(gpio, pin);
Pokitto 5:ea7377f3d1af 30 if (pin != NC) {
Pokitto 5:ea7377f3d1af 31 gpio_write(gpio, value);
Pokitto 5:ea7377f3d1af 32 gpio_dir(gpio, PIN_OUTPUT);
Pokitto 5:ea7377f3d1af 33 gpio_mode(gpio, mode);
Pokitto 5:ea7377f3d1af 34 }
Pokitto 5:ea7377f3d1af 35 }
Pokitto 5:ea7377f3d1af 36
Pokitto 5:ea7377f3d1af 37 void gpio_init_in(gpio_t* gpio, PinName pin) {
Pokitto 5:ea7377f3d1af 38 gpio_init_in_ex(gpio, pin, PullDefault);
Pokitto 5:ea7377f3d1af 39 }
Pokitto 5:ea7377f3d1af 40
Pokitto 5:ea7377f3d1af 41 void gpio_init_in_ex(gpio_t* gpio, PinName pin, PinMode mode) {
Pokitto 5:ea7377f3d1af 42 _gpio_init_in(gpio, pin, mode);
Pokitto 5:ea7377f3d1af 43 }
Pokitto 5:ea7377f3d1af 44
Pokitto 5:ea7377f3d1af 45 void gpio_init_out(gpio_t* gpio, PinName pin) {
Pokitto 5:ea7377f3d1af 46 gpio_init_out_ex(gpio, pin, 0);
Pokitto 5:ea7377f3d1af 47 }
Pokitto 5:ea7377f3d1af 48
Pokitto 5:ea7377f3d1af 49 void gpio_init_out_ex(gpio_t* gpio, PinName pin, int value) {
Pokitto 5:ea7377f3d1af 50 _gpio_init_out(gpio, pin, PullNone, value);
Pokitto 5:ea7377f3d1af 51 }
Pokitto 5:ea7377f3d1af 52
Pokitto 5:ea7377f3d1af 53 void gpio_init_inout(gpio_t* gpio, PinName pin, PinDirection direction, PinMode mode, int value) {
Pokitto 5:ea7377f3d1af 54 if (direction == PIN_INPUT) {
Pokitto 5:ea7377f3d1af 55 _gpio_init_in(gpio, pin, mode);
Pokitto 5:ea7377f3d1af 56 if (pin != NC)
Pokitto 5:ea7377f3d1af 57 gpio_write(gpio, value); // we prepare the value in case it is switched later
Pokitto 5:ea7377f3d1af 58 } else {
Pokitto 5:ea7377f3d1af 59 _gpio_init_out(gpio, pin, mode, value);
Pokitto 5:ea7377f3d1af 60 }
Pokitto 5:ea7377f3d1af 61 }