joey shelton / LED_Demo2

dhgdh

Dependencies:   MAX44000 PWM_Tone_Library nexpaq_mdk

Fork of LED_Demo by joey shelton

mbd_os/hal/common/mbed_gpio.c@9:6bb35cef007d, 2016-10-22 (annotated)

Committer:
cyberjoey
Date:
Sat Oct 22 01:31:58 2016 +0000
Revision:
9:6bb35cef007d
Parent:
1:55a6170b404f 
WORKING

Who changed what in which revision?

UserRevisionLine numberNew contents of line
nexpaq 1:55a6170b404f 1 /* mbed Microcontroller Library
nexpaq 1:55a6170b404f 2 * Copyright (c) 2006-2013 ARM Limited
nexpaq 1:55a6170b404f 3 *
nexpaq 1:55a6170b404f 4 * Licensed under the Apache License, Version 2.0 (the "License");
nexpaq 1:55a6170b404f 5 * you may not use this file except in compliance with the License.
nexpaq 1:55a6170b404f 6 * You may obtain a copy of the License at
nexpaq 1:55a6170b404f 7 *
nexpaq 1:55a6170b404f 8 * http://www.apache.org/licenses/LICENSE-2.0
nexpaq 1:55a6170b404f 9 *
nexpaq 1:55a6170b404f 10 * Unless required by applicable law or agreed to in writing, software
nexpaq 1:55a6170b404f 11 * distributed under the License is distributed on an "AS IS" BASIS,
nexpaq 1:55a6170b404f 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
nexpaq 1:55a6170b404f 13 * See the License for the specific language governing permissions and
nexpaq 1:55a6170b404f 14 * limitations under the License.
nexpaq 1:55a6170b404f 15 */
nexpaq 1:55a6170b404f 16 #include "gpio_api.h"
nexpaq 1:55a6170b404f 17
nexpaq 1:55a6170b404f 18 static inline void _gpio_init_in(gpio_t* gpio, PinName pin, PinMode mode)
nexpaq 1:55a6170b404f 19 {
nexpaq 1:55a6170b404f 20 gpio_init(gpio, pin);
nexpaq 1:55a6170b404f 21 if (pin != NC) {
nexpaq 1:55a6170b404f 22 gpio_dir(gpio, PIN_INPUT);
nexpaq 1:55a6170b404f 23 gpio_mode(gpio, mode);
nexpaq 1:55a6170b404f 24 }
nexpaq 1:55a6170b404f 25 }
nexpaq 1:55a6170b404f 26
nexpaq 1:55a6170b404f 27 static inline void _gpio_init_out(gpio_t* gpio, PinName pin, PinMode mode, int value)
nexpaq 1:55a6170b404f 28 {
nexpaq 1:55a6170b404f 29 gpio_init(gpio, pin);
nexpaq 1:55a6170b404f 30 if (pin != NC) {
nexpaq 1:55a6170b404f 31 gpio_write(gpio, value);
nexpaq 1:55a6170b404f 32 gpio_dir(gpio, PIN_OUTPUT);
nexpaq 1:55a6170b404f 33 gpio_mode(gpio, mode);
nexpaq 1:55a6170b404f 34 }
nexpaq 1:55a6170b404f 35 }
nexpaq 1:55a6170b404f 36
nexpaq 1:55a6170b404f 37 void gpio_init_in(gpio_t* gpio, PinName pin) {
nexpaq 1:55a6170b404f 38 gpio_init_in_ex(gpio, pin, PullDefault);
nexpaq 1:55a6170b404f 39 }
nexpaq 1:55a6170b404f 40
nexpaq 1:55a6170b404f 41 void gpio_init_in_ex(gpio_t* gpio, PinName pin, PinMode mode) {
nexpaq 1:55a6170b404f 42 _gpio_init_in(gpio, pin, mode);
nexpaq 1:55a6170b404f 43 }
nexpaq 1:55a6170b404f 44
nexpaq 1:55a6170b404f 45 void gpio_init_out(gpio_t* gpio, PinName pin) {
nexpaq 1:55a6170b404f 46 gpio_init_out_ex(gpio, pin, 0);
nexpaq 1:55a6170b404f 47 }
nexpaq 1:55a6170b404f 48
nexpaq 1:55a6170b404f 49 void gpio_init_out_ex(gpio_t* gpio, PinName pin, int value) {
nexpaq 1:55a6170b404f 50 _gpio_init_out(gpio, pin, PullNone, value);
nexpaq 1:55a6170b404f 51 }
nexpaq 1:55a6170b404f 52
nexpaq 1:55a6170b404f 53 void gpio_init_inout(gpio_t* gpio, PinName pin, PinDirection direction, PinMode mode, int value) {
nexpaq 1:55a6170b404f 54 if (direction == PIN_INPUT) {
nexpaq 1:55a6170b404f 55 _gpio_init_in(gpio, pin, mode);
nexpaq 1:55a6170b404f 56 if (pin != NC)
nexpaq 1:55a6170b404f 57 gpio_write(gpio, value); // we prepare the value in case it is switched later
nexpaq 1:55a6170b404f 58 } else {
nexpaq 1:55a6170b404f 59 _gpio_init_out(gpio, pin, mode, value);
nexpaq 1:55a6170b404f 60 }
nexpaq 1:55a6170b404f 61 }