Aditya Mehrotra / mbed-dev

Biomimetics MBED Library w/ Added Support for CAN3

Dependents:   CAN_TEST SPIne_Plus_DYNO_SENSORS SPIne_Plus_v2 SPIne_Plus_Dyno_v2

hal/mbed_gpio.c@3:993b4d6ff61e, 2021-03-09 (annotated)

Committer:
adimmit
Date:
Tue Mar 09 20:33:24 2021 +0000
Revision:
3:993b4d6ff61e
Parent:
0:083111ae2a11 
added CAN3

Who changed what in which revision?

UserRevisionLine numberNew contents of line
saloutos 0:083111ae2a11 1 /* mbed Microcontroller Library
saloutos 0:083111ae2a11 2 * Copyright (c) 2006-2013 ARM Limited
saloutos 0:083111ae2a11 3 *
saloutos 0:083111ae2a11 4 * Licensed under the Apache License, Version 2.0 (the "License");
saloutos 0:083111ae2a11 5 * you may not use this file except in compliance with the License.
saloutos 0:083111ae2a11 6 * You may obtain a copy of the License at
saloutos 0:083111ae2a11 7 *
saloutos 0:083111ae2a11 8 * http://www.apache.org/licenses/LICENSE-2.0
saloutos 0:083111ae2a11 9 *
saloutos 0:083111ae2a11 10 * Unless required by applicable law or agreed to in writing, software
saloutos 0:083111ae2a11 11 * distributed under the License is distributed on an "AS IS" BASIS,
saloutos 0:083111ae2a11 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
saloutos 0:083111ae2a11 13 * See the License for the specific language governing permissions and
saloutos 0:083111ae2a11 14 * limitations under the License.
saloutos 0:083111ae2a11 15 */
saloutos 0:083111ae2a11 16 #include "hal/gpio_api.h"
saloutos 0:083111ae2a11 17
saloutos 0:083111ae2a11 18 static inline void _gpio_init_in(gpio_t* gpio, PinName pin, PinMode mode)
saloutos 0:083111ae2a11 19 {
saloutos 0:083111ae2a11 20 gpio_init(gpio, pin);
saloutos 0:083111ae2a11 21 if (pin != NC) {
saloutos 0:083111ae2a11 22 gpio_dir(gpio, PIN_INPUT);
saloutos 0:083111ae2a11 23 gpio_mode(gpio, mode);
saloutos 0:083111ae2a11 24 }
saloutos 0:083111ae2a11 25 }
saloutos 0:083111ae2a11 26
saloutos 0:083111ae2a11 27 static inline void _gpio_init_out(gpio_t* gpio, PinName pin, PinMode mode, int value)
saloutos 0:083111ae2a11 28 {
saloutos 0:083111ae2a11 29 gpio_init(gpio, pin);
saloutos 0:083111ae2a11 30 if (pin != NC) {
saloutos 0:083111ae2a11 31 gpio_write(gpio, value);
saloutos 0:083111ae2a11 32 gpio_dir(gpio, PIN_OUTPUT);
saloutos 0:083111ae2a11 33 gpio_mode(gpio, mode);
saloutos 0:083111ae2a11 34 }
saloutos 0:083111ae2a11 35 }
saloutos 0:083111ae2a11 36
saloutos 0:083111ae2a11 37 void gpio_init_in(gpio_t* gpio, PinName pin) {
saloutos 0:083111ae2a11 38 gpio_init_in_ex(gpio, pin, PullDefault);
saloutos 0:083111ae2a11 39 }
saloutos 0:083111ae2a11 40
saloutos 0:083111ae2a11 41 void gpio_init_in_ex(gpio_t* gpio, PinName pin, PinMode mode) {
saloutos 0:083111ae2a11 42 _gpio_init_in(gpio, pin, mode);
saloutos 0:083111ae2a11 43 }
saloutos 0:083111ae2a11 44
saloutos 0:083111ae2a11 45 void gpio_init_out(gpio_t* gpio, PinName pin) {
saloutos 0:083111ae2a11 46 gpio_init_out_ex(gpio, pin, 0);
saloutos 0:083111ae2a11 47 }
saloutos 0:083111ae2a11 48
saloutos 0:083111ae2a11 49 void gpio_init_out_ex(gpio_t* gpio, PinName pin, int value) {
saloutos 0:083111ae2a11 50 _gpio_init_out(gpio, pin, PullNone, value);
saloutos 0:083111ae2a11 51 }
saloutos 0:083111ae2a11 52
saloutos 0:083111ae2a11 53 void gpio_init_inout(gpio_t* gpio, PinName pin, PinDirection direction, PinMode mode, int value) {
saloutos 0:083111ae2a11 54 if (direction == PIN_INPUT) {
saloutos 0:083111ae2a11 55 _gpio_init_in(gpio, pin, mode);
saloutos 0:083111ae2a11 56 if (pin != NC)
saloutos 0:083111ae2a11 57 gpio_write(gpio, value); // we prepare the value in case it is switched later
saloutos 0:083111ae2a11 58 } else {
saloutos 0:083111ae2a11 59 _gpio_init_out(gpio, pin, mode, value);
saloutos 0:083111ae2a11 60 }
saloutos 0:083111ae2a11 61 }