Emir Sokic / mbedPAI Featured

mbed.h verzija za koristenje na predmetu PAI

DigitalInOut.h@0:05aad811ea07, 2015-03-10 (annotated)

Committer:
esokic
Date:
Tue Mar 10 09:51:52 2015 +0000
Revision:
0:05aad811ea07
mbed.h verzija od marta 2014, za koristenje na predmetu PAI

Who changed what in which revision?

UserRevisionLine numberNew contents of line
esokic 0:05aad811ea07 1 /* mbed Microcontroller Library
esokic 0:05aad811ea07 2 * Copyright (c) 2006-2013 ARM Limited
esokic 0:05aad811ea07 3 *
esokic 0:05aad811ea07 4 * Licensed under the Apache License, Version 2.0 (the "License");
esokic 0:05aad811ea07 5 * you may not use this file except in compliance with the License.
esokic 0:05aad811ea07 6 * You may obtain a copy of the License at
esokic 0:05aad811ea07 7 *
esokic 0:05aad811ea07 8 * http://www.apache.org/licenses/LICENSE-2.0
esokic 0:05aad811ea07 9 *
esokic 0:05aad811ea07 10 * Unless required by applicable law or agreed to in writing, software
esokic 0:05aad811ea07 11 * distributed under the License is distributed on an "AS IS" BASIS,
esokic 0:05aad811ea07 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
esokic 0:05aad811ea07 13 * See the License for the specific language governing permissions and
esokic 0:05aad811ea07 14 * limitations under the License.
esokic 0:05aad811ea07 15 */
esokic 0:05aad811ea07 16 #ifndef MBED_DIGITALINOUT_H
esokic 0:05aad811ea07 17 #define MBED_DIGITALINOUT_H
esokic 0:05aad811ea07 18
esokic 0:05aad811ea07 19 #include "platform.h"
esokic 0:05aad811ea07 20
esokic 0:05aad811ea07 21 #include "gpio_api.h"
esokic 0:05aad811ea07 22
esokic 0:05aad811ea07 23 namespace mbed {
esokic 0:05aad811ea07 24
esokic 0:05aad811ea07 25 /** A digital input/output, used for setting or reading a bi-directional pin
esokic 0:05aad811ea07 26 */
esokic 0:05aad811ea07 27 class DigitalInOut {
esokic 0:05aad811ea07 28
esokic 0:05aad811ea07 29 public:
esokic 0:05aad811ea07 30 /** Create a DigitalInOut connected to the specified pin
esokic 0:05aad811ea07 31 *
esokic 0:05aad811ea07 32 * @param pin DigitalInOut pin to connect to
esokic 0:05aad811ea07 33 */
esokic 0:05aad811ea07 34 DigitalInOut(PinName pin) {
esokic 0:05aad811ea07 35 gpio_init_in(&gpio, pin);
esokic 0:05aad811ea07 36 }
esokic 0:05aad811ea07 37
esokic 0:05aad811ea07 38 /** Create a DigitalInOut connected to the specified pin
esokic 0:05aad811ea07 39 *
esokic 0:05aad811ea07 40 * @param pin DigitalInOut pin to connect to
esokic 0:05aad811ea07 41 * @param direction the initial direction of the pin
esokic 0:05aad811ea07 42 * @param mode the initial mode of the pin
esokic 0:05aad811ea07 43 * @param value the initial value of the pin if is an output
esokic 0:05aad811ea07 44 */
esokic 0:05aad811ea07 45 DigitalInOut(PinName pin, PinDirection direction, PinMode mode, int value) {
esokic 0:05aad811ea07 46 gpio_init_inout(&gpio, pin, direction, mode, value);
esokic 0:05aad811ea07 47 }
esokic 0:05aad811ea07 48
esokic 0:05aad811ea07 49 /** Set the output, specified as 0 or 1 (int)
esokic 0:05aad811ea07 50 *
esokic 0:05aad811ea07 51 * @param value An integer specifying the pin output value,
esokic 0:05aad811ea07 52 * 0 for logical 0, 1 (or any other non-zero value) for logical 1
esokic 0:05aad811ea07 53 */
esokic 0:05aad811ea07 54 void write(int value) {
esokic 0:05aad811ea07 55 gpio_write(&gpio, value);
esokic 0:05aad811ea07 56 }
esokic 0:05aad811ea07 57
esokic 0:05aad811ea07 58 /** Return the output setting, represented as 0 or 1 (int)
esokic 0:05aad811ea07 59 *
esokic 0:05aad811ea07 60 * @returns
esokic 0:05aad811ea07 61 * an integer representing the output setting of the pin if it is an output,
esokic 0:05aad811ea07 62 * or read the input if set as an input
esokic 0:05aad811ea07 63 */
esokic 0:05aad811ea07 64 int read() {
esokic 0:05aad811ea07 65 return gpio_read(&gpio);
esokic 0:05aad811ea07 66 }
esokic 0:05aad811ea07 67
esokic 0:05aad811ea07 68 /** Set as an output
esokic 0:05aad811ea07 69 */
esokic 0:05aad811ea07 70 void output() {
esokic 0:05aad811ea07 71 gpio_dir(&gpio, PIN_OUTPUT);
esokic 0:05aad811ea07 72 }
esokic 0:05aad811ea07 73
esokic 0:05aad811ea07 74 /** Set as an input
esokic 0:05aad811ea07 75 */
esokic 0:05aad811ea07 76 void input() {
esokic 0:05aad811ea07 77 gpio_dir(&gpio, PIN_INPUT);
esokic 0:05aad811ea07 78 }
esokic 0:05aad811ea07 79
esokic 0:05aad811ea07 80 /** Set the input pin mode
esokic 0:05aad811ea07 81 *
esokic 0:05aad811ea07 82 * @param mode PullUp, PullDown, PullNone, OpenDrain
esokic 0:05aad811ea07 83 */
esokic 0:05aad811ea07 84 void mode(PinMode pull) {
esokic 0:05aad811ea07 85 gpio_mode(&gpio, pull);
esokic 0:05aad811ea07 86 }
esokic 0:05aad811ea07 87
esokic 0:05aad811ea07 88 #ifdef MBED_OPERATORS
esokic 0:05aad811ea07 89 /** A shorthand for write()
esokic 0:05aad811ea07 90 */
esokic 0:05aad811ea07 91 DigitalInOut& operator= (int value) {
esokic 0:05aad811ea07 92 write(value);
esokic 0:05aad811ea07 93 return *this;
esokic 0:05aad811ea07 94 }
esokic 0:05aad811ea07 95
esokic 0:05aad811ea07 96 DigitalInOut& operator= (DigitalInOut& rhs) {
esokic 0:05aad811ea07 97 write(rhs.read());
esokic 0:05aad811ea07 98 return *this;
esokic 0:05aad811ea07 99 }
esokic 0:05aad811ea07 100
esokic 0:05aad811ea07 101 /** A shorthand for read()
esokic 0:05aad811ea07 102 */
esokic 0:05aad811ea07 103 operator int() {
esokic 0:05aad811ea07 104 return read();
esokic 0:05aad811ea07 105 }
esokic 0:05aad811ea07 106 #endif
esokic 0:05aad811ea07 107
esokic 0:05aad811ea07 108 protected:
esokic 0:05aad811ea07 109 gpio_t gpio;
esokic 0:05aad811ea07 110 };
esokic 0:05aad811ea07 111
esokic 0:05aad811ea07 112 } // namespace mbed
esokic 0:05aad811ea07 113
esokic 0:05aad811ea07 114 #endif