PHung Tung / WAV2

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Dependencies:   F746_GUI SD_PlayerSkeleton F746_SAI_IO

mbed_src_STM32F7/api/DigitalInOut.h@0:aa3fc5ad02f7, 2019-06-04 (annotated)

Committer:
phungductung
Date:
Tue Jun 04 09:08:29 2019 +0000
Revision:
0:aa3fc5ad02f7
SPKT

Who changed what in which revision?

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phungductung 0:aa3fc5ad02f7 1 /* mbed Microcontroller Library
phungductung 0:aa3fc5ad02f7 2 * Copyright (c) 2006-2013 ARM Limited
phungductung 0:aa3fc5ad02f7 3 *
phungductung 0:aa3fc5ad02f7 4 * Licensed under the Apache License, Version 2.0 (the "License");
phungductung 0:aa3fc5ad02f7 5 * you may not use this file except in compliance with the License.
phungductung 0:aa3fc5ad02f7 6 * You may obtain a copy of the License at
phungductung 0:aa3fc5ad02f7 7 *
phungductung 0:aa3fc5ad02f7 8 * http://www.apache.org/licenses/LICENSE-2.0
phungductung 0:aa3fc5ad02f7 9 *
phungductung 0:aa3fc5ad02f7 10 * Unless required by applicable law or agreed to in writing, software
phungductung 0:aa3fc5ad02f7 11 * distributed under the License is distributed on an "AS IS" BASIS,
phungductung 0:aa3fc5ad02f7 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
phungductung 0:aa3fc5ad02f7 13 * See the License for the specific language governing permissions and
phungductung 0:aa3fc5ad02f7 14 * limitations under the License.
phungductung 0:aa3fc5ad02f7 15 */
phungductung 0:aa3fc5ad02f7 16 #ifndef MBED_DIGITALINOUT_H
phungductung 0:aa3fc5ad02f7 17 #define MBED_DIGITALINOUT_H
phungductung 0:aa3fc5ad02f7 18
phungductung 0:aa3fc5ad02f7 19 #include "platform.h"
phungductung 0:aa3fc5ad02f7 20
phungductung 0:aa3fc5ad02f7 21 #include "gpio_api.h"
phungductung 0:aa3fc5ad02f7 22
phungductung 0:aa3fc5ad02f7 23 namespace mbed {
phungductung 0:aa3fc5ad02f7 24
phungductung 0:aa3fc5ad02f7 25 /** A digital input/output, used for setting or reading a bi-directional pin
phungductung 0:aa3fc5ad02f7 26 */
phungductung 0:aa3fc5ad02f7 27 class DigitalInOut {
phungductung 0:aa3fc5ad02f7 28
phungductung 0:aa3fc5ad02f7 29 public:
phungductung 0:aa3fc5ad02f7 30 /** Create a DigitalInOut connected to the specified pin
phungductung 0:aa3fc5ad02f7 31 *
phungductung 0:aa3fc5ad02f7 32 * @param pin DigitalInOut pin to connect to
phungductung 0:aa3fc5ad02f7 33 */
phungductung 0:aa3fc5ad02f7 34 DigitalInOut(PinName pin) : gpio() {
phungductung 0:aa3fc5ad02f7 35 gpio_init_in(&gpio, pin);
phungductung 0:aa3fc5ad02f7 36 }
phungductung 0:aa3fc5ad02f7 37
phungductung 0:aa3fc5ad02f7 38 /** Create a DigitalInOut connected to the specified pin
phungductung 0:aa3fc5ad02f7 39 *
phungductung 0:aa3fc5ad02f7 40 * @param pin DigitalInOut pin to connect to
phungductung 0:aa3fc5ad02f7 41 * @param direction the initial direction of the pin
phungductung 0:aa3fc5ad02f7 42 * @param mode the initial mode of the pin
phungductung 0:aa3fc5ad02f7 43 * @param value the initial value of the pin if is an output
phungductung 0:aa3fc5ad02f7 44 */
phungductung 0:aa3fc5ad02f7 45 DigitalInOut(PinName pin, PinDirection direction, PinMode mode, int value) : gpio() {
phungductung 0:aa3fc5ad02f7 46 gpio_init_inout(&gpio, pin, direction, mode, value);
phungductung 0:aa3fc5ad02f7 47 }
phungductung 0:aa3fc5ad02f7 48
phungductung 0:aa3fc5ad02f7 49 /** Set the output, specified as 0 or 1 (int)
phungductung 0:aa3fc5ad02f7 50 *
phungductung 0:aa3fc5ad02f7 51 * @param value An integer specifying the pin output value,
phungductung 0:aa3fc5ad02f7 52 * 0 for logical 0, 1 (or any other non-zero value) for logical 1
phungductung 0:aa3fc5ad02f7 53 */
phungductung 0:aa3fc5ad02f7 54 void write(int value) {
phungductung 0:aa3fc5ad02f7 55 gpio_write(&gpio, value);
phungductung 0:aa3fc5ad02f7 56 }
phungductung 0:aa3fc5ad02f7 57
phungductung 0:aa3fc5ad02f7 58 /** Return the output setting, represented as 0 or 1 (int)
phungductung 0:aa3fc5ad02f7 59 *
phungductung 0:aa3fc5ad02f7 60 * @returns
phungductung 0:aa3fc5ad02f7 61 * an integer representing the output setting of the pin if it is an output,
phungductung 0:aa3fc5ad02f7 62 * or read the input if set as an input
phungductung 0:aa3fc5ad02f7 63 */
phungductung 0:aa3fc5ad02f7 64 int read() {
phungductung 0:aa3fc5ad02f7 65 return gpio_read(&gpio);
phungductung 0:aa3fc5ad02f7 66 }
phungductung 0:aa3fc5ad02f7 67
phungductung 0:aa3fc5ad02f7 68 /** Set as an output
phungductung 0:aa3fc5ad02f7 69 */
phungductung 0:aa3fc5ad02f7 70 void output() {
phungductung 0:aa3fc5ad02f7 71 gpio_dir(&gpio, PIN_OUTPUT);
phungductung 0:aa3fc5ad02f7 72 }
phungductung 0:aa3fc5ad02f7 73
phungductung 0:aa3fc5ad02f7 74 /** Set as an input
phungductung 0:aa3fc5ad02f7 75 */
phungductung 0:aa3fc5ad02f7 76 void input() {
phungductung 0:aa3fc5ad02f7 77 gpio_dir(&gpio, PIN_INPUT);
phungductung 0:aa3fc5ad02f7 78 }
phungductung 0:aa3fc5ad02f7 79
phungductung 0:aa3fc5ad02f7 80 /** Set the input pin mode
phungductung 0:aa3fc5ad02f7 81 *
phungductung 0:aa3fc5ad02f7 82 * @param mode PullUp, PullDown, PullNone, OpenDrain
phungductung 0:aa3fc5ad02f7 83 */
phungductung 0:aa3fc5ad02f7 84 void mode(PinMode pull) {
phungductung 0:aa3fc5ad02f7 85 gpio_mode(&gpio, pull);
phungductung 0:aa3fc5ad02f7 86 }
phungductung 0:aa3fc5ad02f7 87
phungductung 0:aa3fc5ad02f7 88 /** Return the output setting, represented as 0 or 1 (int)
phungductung 0:aa3fc5ad02f7 89 *
phungductung 0:aa3fc5ad02f7 90 * @returns
phungductung 0:aa3fc5ad02f7 91 * Non zero value if pin is connected to uc GPIO
phungductung 0:aa3fc5ad02f7 92 * 0 if gpio object was initialized with NC
phungductung 0:aa3fc5ad02f7 93 */
phungductung 0:aa3fc5ad02f7 94 int is_connected() {
phungductung 0:aa3fc5ad02f7 95 return gpio_is_connected(&gpio);
phungductung 0:aa3fc5ad02f7 96 }
phungductung 0:aa3fc5ad02f7 97
phungductung 0:aa3fc5ad02f7 98 #ifdef MBED_OPERATORS
phungductung 0:aa3fc5ad02f7 99 /** A shorthand for write()
phungductung 0:aa3fc5ad02f7 100 */
phungductung 0:aa3fc5ad02f7 101 DigitalInOut& operator= (int value) {
phungductung 0:aa3fc5ad02f7 102 write(value);
phungductung 0:aa3fc5ad02f7 103 return *this;
phungductung 0:aa3fc5ad02f7 104 }
phungductung 0:aa3fc5ad02f7 105
phungductung 0:aa3fc5ad02f7 106 DigitalInOut& operator= (DigitalInOut& rhs) {
phungductung 0:aa3fc5ad02f7 107 write(rhs.read());
phungductung 0:aa3fc5ad02f7 108 return *this;
phungductung 0:aa3fc5ad02f7 109 }
phungductung 0:aa3fc5ad02f7 110
phungductung 0:aa3fc5ad02f7 111 /** A shorthand for read()
phungductung 0:aa3fc5ad02f7 112 */
phungductung 0:aa3fc5ad02f7 113 operator int() {
phungductung 0:aa3fc5ad02f7 114 return read();
phungductung 0:aa3fc5ad02f7 115 }
phungductung 0:aa3fc5ad02f7 116 #endif
phungductung 0:aa3fc5ad02f7 117
phungductung 0:aa3fc5ad02f7 118 protected:
phungductung 0:aa3fc5ad02f7 119 gpio_t gpio;
phungductung 0:aa3fc5ad02f7 120 };
phungductung 0:aa3fc5ad02f7 121
phungductung 0:aa3fc5ad02f7 122 } // namespace mbed
phungductung 0:aa3fc5ad02f7 123
phungductung 0:aa3fc5ad02f7 124 #endif