modtronix H / mbed_nz32sc151

mbed library for NZ32-SC151

common/gpio.c@17:639ed60ce759, 2016-08-19 (annotated)

Committer:
modtronix-com
Date:
Fri Aug 19 15:46:42 2016 +1000
Revision:
17:639ed60ce759
Parent:
1:71204b8406f2 
Added tag v1.1 for changeset 076cbe3e55be

Who changed what in which revision?

UserRevisionLine numberNew contents of line
modtronix 1:71204b8406f2 1 /* mbed Microcontroller Library
modtronix 1:71204b8406f2 2 * Copyright (c) 2006-2013 ARM Limited
modtronix 1:71204b8406f2 3 *
modtronix 1:71204b8406f2 4 * Licensed under the Apache License, Version 2.0 (the "License");
modtronix 1:71204b8406f2 5 * you may not use this file except in compliance with the License.
modtronix 1:71204b8406f2 6 * You may obtain a copy of the License at
modtronix 1:71204b8406f2 7 *
modtronix 1:71204b8406f2 8 * http://www.apache.org/licenses/LICENSE-2.0
modtronix 1:71204b8406f2 9 *
modtronix 1:71204b8406f2 10 * Unless required by applicable law or agreed to in writing, software
modtronix 1:71204b8406f2 11 * distributed under the License is distributed on an "AS IS" BASIS,
modtronix 1:71204b8406f2 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
modtronix 1:71204b8406f2 13 * See the License for the specific language governing permissions and
modtronix 1:71204b8406f2 14 * limitations under the License.
modtronix 1:71204b8406f2 15 */
modtronix 1:71204b8406f2 16 #include "gpio_api.h"
modtronix 1:71204b8406f2 17
modtronix 1:71204b8406f2 18 static inline void _gpio_init_in(gpio_t* gpio, PinName pin, PinMode mode)
modtronix 1:71204b8406f2 19 {
modtronix 1:71204b8406f2 20 gpio_init(gpio, pin);
modtronix 1:71204b8406f2 21 if (pin != NC) {
modtronix 1:71204b8406f2 22 gpio_dir(gpio, PIN_INPUT);
modtronix 1:71204b8406f2 23 gpio_mode(gpio, mode);
modtronix 1:71204b8406f2 24 }
modtronix 1:71204b8406f2 25 }
modtronix 1:71204b8406f2 26
modtronix 1:71204b8406f2 27 static inline void _gpio_init_out(gpio_t* gpio, PinName pin, PinMode mode, int value)
modtronix 1:71204b8406f2 28 {
modtronix 1:71204b8406f2 29 gpio_init(gpio, pin);
modtronix 1:71204b8406f2 30 if (pin != NC) {
modtronix 1:71204b8406f2 31 gpio_write(gpio, value);
modtronix 1:71204b8406f2 32 gpio_dir(gpio, PIN_OUTPUT);
modtronix 1:71204b8406f2 33 gpio_mode(gpio, mode);
modtronix 1:71204b8406f2 34 }
modtronix 1:71204b8406f2 35 }
modtronix 1:71204b8406f2 36
modtronix 1:71204b8406f2 37 void gpio_init_in(gpio_t* gpio, PinName pin) {
modtronix 1:71204b8406f2 38 gpio_init_in_ex(gpio, pin, PullDefault);
modtronix 1:71204b8406f2 39 }
modtronix 1:71204b8406f2 40
modtronix 1:71204b8406f2 41 void gpio_init_in_ex(gpio_t* gpio, PinName pin, PinMode mode) {
modtronix 1:71204b8406f2 42 _gpio_init_in(gpio, pin, mode);
modtronix 1:71204b8406f2 43 }
modtronix 1:71204b8406f2 44
modtronix 1:71204b8406f2 45 void gpio_init_out(gpio_t* gpio, PinName pin) {
modtronix 1:71204b8406f2 46 gpio_init_out_ex(gpio, pin, 0);
modtronix 1:71204b8406f2 47 }
modtronix 1:71204b8406f2 48
modtronix 1:71204b8406f2 49 void gpio_init_out_ex(gpio_t* gpio, PinName pin, int value) {
modtronix 1:71204b8406f2 50 _gpio_init_out(gpio, pin, PullNone, value);
modtronix 1:71204b8406f2 51 }
modtronix 1:71204b8406f2 52
modtronix 1:71204b8406f2 53 void gpio_init_inout(gpio_t* gpio, PinName pin, PinDirection direction, PinMode mode, int value) {
modtronix 1:71204b8406f2 54 if (direction == PIN_INPUT) {
modtronix 1:71204b8406f2 55 _gpio_init_in(gpio, pin, mode);
modtronix 1:71204b8406f2 56 if (pin != NC)
modtronix 1:71204b8406f2 57 gpio_write(gpio, value); // we prepare the value in case it is switched later
modtronix 1:71204b8406f2 58 } else {
modtronix 1:71204b8406f2 59 _gpio_init_out(gpio, pin, mode, value);
modtronix 1:71204b8406f2 60 }
modtronix 1:71204b8406f2 61 }