Yihui Xiong / BLE_NODE_TEST

Test code for Grove Node BLE

Dependencies:   BLE_API nRF51822

Fork of BLE_LoopbackUART by Bluetooth Low Energy

mbed-src/api/DigitalInOut.h@10:22480ac31879, 2014-11-27 (annotated)

Committer:
yihui
Date:
Thu Nov 27 09:30:36 2014 +0000
Revision:
10:22480ac31879
Parent:
9:05f0b5a3a70a 
change to new revision hardware

Who changed what in which revision?

UserRevisionLine numberNew contents of line
yihui 9:05f0b5a3a70a 1 /* mbed Microcontroller Library
yihui 9:05f0b5a3a70a 2 * Copyright (c) 2006-2013 ARM Limited
yihui 9:05f0b5a3a70a 3 *
yihui 9:05f0b5a3a70a 4 * Licensed under the Apache License, Version 2.0 (the "License");
yihui 9:05f0b5a3a70a 5 * you may not use this file except in compliance with the License.
yihui 9:05f0b5a3a70a 6 * You may obtain a copy of the License at
yihui 9:05f0b5a3a70a 7 *
yihui 9:05f0b5a3a70a 8 * http://www.apache.org/licenses/LICENSE-2.0
yihui 9:05f0b5a3a70a 9 *
yihui 9:05f0b5a3a70a 10 * Unless required by applicable law or agreed to in writing, software
yihui 9:05f0b5a3a70a 11 * distributed under the License is distributed on an "AS IS" BASIS,
yihui 9:05f0b5a3a70a 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
yihui 9:05f0b5a3a70a 13 * See the License for the specific language governing permissions and
yihui 9:05f0b5a3a70a 14 * limitations under the License.
yihui 9:05f0b5a3a70a 15 */
yihui 9:05f0b5a3a70a 16 #ifndef MBED_DIGITALINOUT_H
yihui 9:05f0b5a3a70a 17 #define MBED_DIGITALINOUT_H
yihui 9:05f0b5a3a70a 18
yihui 9:05f0b5a3a70a 19 #include "platform.h"
yihui 9:05f0b5a3a70a 20
yihui 9:05f0b5a3a70a 21 #include "gpio_api.h"
yihui 9:05f0b5a3a70a 22
yihui 9:05f0b5a3a70a 23 namespace mbed {
yihui 9:05f0b5a3a70a 24
yihui 9:05f0b5a3a70a 25 /** A digital input/output, used for setting or reading a bi-directional pin
yihui 9:05f0b5a3a70a 26 */
yihui 9:05f0b5a3a70a 27 class DigitalInOut {
yihui 9:05f0b5a3a70a 28
yihui 9:05f0b5a3a70a 29 public:
yihui 9:05f0b5a3a70a 30 /** Create a DigitalInOut connected to the specified pin
yihui 9:05f0b5a3a70a 31 *
yihui 9:05f0b5a3a70a 32 * @param pin DigitalInOut pin to connect to
yihui 9:05f0b5a3a70a 33 */
yihui 9:05f0b5a3a70a 34 DigitalInOut(PinName pin) : gpio() {
yihui 9:05f0b5a3a70a 35 gpio_init_in(&gpio, pin);
yihui 9:05f0b5a3a70a 36 }
yihui 9:05f0b5a3a70a 37
yihui 9:05f0b5a3a70a 38 /** Create a DigitalInOut connected to the specified pin
yihui 9:05f0b5a3a70a 39 *
yihui 9:05f0b5a3a70a 40 * @param pin DigitalInOut pin to connect to
yihui 9:05f0b5a3a70a 41 * @param direction the initial direction of the pin
yihui 9:05f0b5a3a70a 42 * @param mode the initial mode of the pin
yihui 9:05f0b5a3a70a 43 * @param value the initial value of the pin if is an output
yihui 9:05f0b5a3a70a 44 */
yihui 9:05f0b5a3a70a 45 DigitalInOut(PinName pin, PinDirection direction, PinMode mode, int value) : gpio() {
yihui 9:05f0b5a3a70a 46 gpio_init_inout(&gpio, pin, direction, mode, value);
yihui 9:05f0b5a3a70a 47 }
yihui 9:05f0b5a3a70a 48
yihui 9:05f0b5a3a70a 49 /** Set the output, specified as 0 or 1 (int)
yihui 9:05f0b5a3a70a 50 *
yihui 9:05f0b5a3a70a 51 * @param value An integer specifying the pin output value,
yihui 9:05f0b5a3a70a 52 * 0 for logical 0, 1 (or any other non-zero value) for logical 1
yihui 9:05f0b5a3a70a 53 */
yihui 9:05f0b5a3a70a 54 void write(int value) {
yihui 9:05f0b5a3a70a 55 gpio_write(&gpio, value);
yihui 9:05f0b5a3a70a 56 }
yihui 9:05f0b5a3a70a 57
yihui 9:05f0b5a3a70a 58 /** Return the output setting, represented as 0 or 1 (int)
yihui 9:05f0b5a3a70a 59 *
yihui 9:05f0b5a3a70a 60 * @returns
yihui 9:05f0b5a3a70a 61 * an integer representing the output setting of the pin if it is an output,
yihui 9:05f0b5a3a70a 62 * or read the input if set as an input
yihui 9:05f0b5a3a70a 63 */
yihui 9:05f0b5a3a70a 64 int read() {
yihui 9:05f0b5a3a70a 65 return gpio_read(&gpio);
yihui 9:05f0b5a3a70a 66 }
yihui 9:05f0b5a3a70a 67
yihui 9:05f0b5a3a70a 68 /** Set as an output
yihui 9:05f0b5a3a70a 69 */
yihui 9:05f0b5a3a70a 70 void output() {
yihui 9:05f0b5a3a70a 71 gpio_dir(&gpio, PIN_OUTPUT);
yihui 9:05f0b5a3a70a 72 }
yihui 9:05f0b5a3a70a 73
yihui 9:05f0b5a3a70a 74 /** Set as an input
yihui 9:05f0b5a3a70a 75 */
yihui 9:05f0b5a3a70a 76 void input() {
yihui 9:05f0b5a3a70a 77 gpio_dir(&gpio, PIN_INPUT);
yihui 9:05f0b5a3a70a 78 }
yihui 9:05f0b5a3a70a 79
yihui 9:05f0b5a3a70a 80 /** Set the input pin mode
yihui 9:05f0b5a3a70a 81 *
yihui 9:05f0b5a3a70a 82 * @param mode PullUp, PullDown, PullNone, OpenDrain
yihui 9:05f0b5a3a70a 83 */
yihui 9:05f0b5a3a70a 84 void mode(PinMode pull) {
yihui 9:05f0b5a3a70a 85 gpio_mode(&gpio, pull);
yihui 9:05f0b5a3a70a 86 }
yihui 9:05f0b5a3a70a 87
yihui 9:05f0b5a3a70a 88 #ifdef MBED_OPERATORS
yihui 9:05f0b5a3a70a 89 /** A shorthand for write()
yihui 9:05f0b5a3a70a 90 */
yihui 9:05f0b5a3a70a 91 DigitalInOut& operator= (int value) {
yihui 9:05f0b5a3a70a 92 write(value);
yihui 9:05f0b5a3a70a 93 return *this;
yihui 9:05f0b5a3a70a 94 }
yihui 9:05f0b5a3a70a 95
yihui 9:05f0b5a3a70a 96 DigitalInOut& operator= (DigitalInOut& rhs) {
yihui 9:05f0b5a3a70a 97 write(rhs.read());
yihui 9:05f0b5a3a70a 98 return *this;
yihui 9:05f0b5a3a70a 99 }
yihui 9:05f0b5a3a70a 100
yihui 9:05f0b5a3a70a 101 /** A shorthand for read()
yihui 9:05f0b5a3a70a 102 */
yihui 9:05f0b5a3a70a 103 operator int() {
yihui 9:05f0b5a3a70a 104 return read();
yihui 9:05f0b5a3a70a 105 }
yihui 9:05f0b5a3a70a 106 #endif
yihui 9:05f0b5a3a70a 107
yihui 9:05f0b5a3a70a 108 protected:
yihui 9:05f0b5a3a70a 109 gpio_t gpio;
yihui 9:05f0b5a3a70a 110 };
yihui 9:05f0b5a3a70a 111
yihui 9:05f0b5a3a70a 112 } // namespace mbed
yihui 9:05f0b5a3a70a 113
yihui 9:05f0b5a3a70a 114 #endif