Demo Team / Mbed 2 deprecated APM_PONG_LEDs_7seg2_0

updated 7seg controls for new 7 seg boards

Dependencies:   PixelArray WS2812 mbed

Fork of frdm_pong_table_controller by Demo Team

PinDetect.h@12:7f428ce8ab35, 2017-08-06 (annotated)

Committer:
DanGibbons
Date:
Sun Aug 06 11:53:00 2017 +0000
Revision:
12:7f428ce8ab35
Parent:
10:554301a1579b 
Reduced LED Brightness

Who changed what in which revision?

UserRevisionLine numberNew contents of line
DanGibbons 10:554301a1579b 1 /*
DanGibbons 10:554301a1579b 2 Copyright (c) 2010 Andy Kirkham
DanGibbons 10:554301a1579b 3
DanGibbons 10:554301a1579b 4 Permission is hereby granted, free of charge, to any person obtaining a copy
DanGibbons 10:554301a1579b 5 of this software and associated documentation files (the "Software"), to deal
DanGibbons 10:554301a1579b 6 in the Software without restriction, including without limitation the rights
DanGibbons 10:554301a1579b 7 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
DanGibbons 10:554301a1579b 8 copies of the Software, and to permit persons to whom the Software is
DanGibbons 10:554301a1579b 9 furnished to do so, subject to the following conditions:
DanGibbons 10:554301a1579b 10
DanGibbons 10:554301a1579b 11 The above copyright notice and this permission notice shall be included in
DanGibbons 10:554301a1579b 12 all copies or substantial portions of the Software.
DanGibbons 10:554301a1579b 13
DanGibbons 10:554301a1579b 14 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
DanGibbons 10:554301a1579b 15 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
DanGibbons 10:554301a1579b 16 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
DanGibbons 10:554301a1579b 17 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
DanGibbons 10:554301a1579b 18 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
DanGibbons 10:554301a1579b 19 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
DanGibbons 10:554301a1579b 20 THE SOFTWARE.
DanGibbons 10:554301a1579b 21 */
DanGibbons 10:554301a1579b 22
DanGibbons 10:554301a1579b 23 #ifndef AJK_PIN_DETECT_H
DanGibbons 10:554301a1579b 24 #define AJK_PIN_DETECT_H
DanGibbons 10:554301a1579b 25
DanGibbons 10:554301a1579b 26 #ifndef MBED_H
DanGibbons 10:554301a1579b 27 #include "mbed.h"
DanGibbons 10:554301a1579b 28 #endif
DanGibbons 10:554301a1579b 29
DanGibbons 10:554301a1579b 30 #ifndef PINDETECT_PIN_ASSTERED
DanGibbons 10:554301a1579b 31 #define PINDETECT_PIN_ASSTERED 1
DanGibbons 10:554301a1579b 32 #endif
DanGibbons 10:554301a1579b 33
DanGibbons 10:554301a1579b 34 #ifndef PINDETECT_SAMPLE_PERIOD
DanGibbons 10:554301a1579b 35 #define PINDETECT_SAMPLE_PERIOD 20000
DanGibbons 10:554301a1579b 36 #endif
DanGibbons 10:554301a1579b 37
DanGibbons 10:554301a1579b 38 #ifndef PINDETECT_ASSERT_COUNT
DanGibbons 10:554301a1579b 39 #define PINDETECT_ASSERT_COUNT 1
DanGibbons 10:554301a1579b 40 #endif
DanGibbons 10:554301a1579b 41
DanGibbons 10:554301a1579b 42 #ifndef PINDETECT_HOLD_COUNT
DanGibbons 10:554301a1579b 43 #define PINDETECT_HOLD_COUNT 50
DanGibbons 10:554301a1579b 44 #endif
DanGibbons 10:554301a1579b 45
DanGibbons 10:554301a1579b 46 namespace AjK {
DanGibbons 10:554301a1579b 47
DanGibbons 10:554301a1579b 48 /** PinDetect adds mechanical switch debouncing to DigitialIn and interrupt callbacks.
DanGibbons 10:554301a1579b 49 *
DanGibbons 10:554301a1579b 50 * This is done by sampling the specified pin at regular intervals and detecting any
DanGibbons 10:554301a1579b 51 * change of state ( 0 -> 1 or 1 -> 0 ). When a state change is detected the attached
DanGibbons 10:554301a1579b 52 * callback handler is called. Additionally, if the pin stays in the same state after
DanGibbons 10:554301a1579b 53 * a state change for a defined period of time, an extra callback is made allowing a
DanGibbons 10:554301a1579b 54 * program to detect when a "key is pressed and held down" rather than a momentary
DanGibbons 10:554301a1579b 55 * key/switch press.
DanGibbons 10:554301a1579b 56 *
DanGibbons 10:554301a1579b 57 * All parameters are customisable which include:-
DanGibbons 10:554301a1579b 58 * <ul>
DanGibbons 10:554301a1579b 59 * <li> The sampling frequency. </li>
DanGibbons 10:554301a1579b 60 * <li> The number of continuous samples until a state change is detected. </li>
DanGibbons 10:554301a1579b 61 * <li> The number of continuous samples until a key is assumed held after a state change. </li>
DanGibbons 10:554301a1579b 62 * <li> The logic level which is assumed to be asserted (0volts or +volts). </li>
DanGibbons 10:554301a1579b 63 * </ul>
DanGibbons 10:554301a1579b 64 *
DanGibbons 10:554301a1579b 65 * Only callbacks that have been attached will be called by the library.
DanGibbons 10:554301a1579b 66 *
DanGibbons 10:554301a1579b 67 * Example:
DanGibbons 10:554301a1579b 68 * @code
DanGibbons 10:554301a1579b 69 * #include "mbed.h"
DanGibbons 10:554301a1579b 70 * #include "PinDetect.h"
DanGibbons 10:554301a1579b 71 *
DanGibbons 10:554301a1579b 72 * PinDetect pin( p30 );
DanGibbons 10:554301a1579b 73 * DigitialOut led1( LED1 );
DanGibbons 10:554301a1579b 74 * DigitialOut led2( LED2 );
DanGibbons 10:554301a1579b 75 * DigitialOut led3( LED3 );
DanGibbons 10:554301a1579b 76 * DigitialOut led4( LED4 );
DanGibbons 10:554301a1579b 77 *
DanGibbons 10:554301a1579b 78 * void keyPressed( void ) {
DanGibbons 10:554301a1579b 79 * led2 = 1;
DanGibbons 10:554301a1579b 80 * led3 = 0;
DanGibbons 10:554301a1579b 81 * led4 = 0;
DanGibbons 10:554301a1579b 82 * }
DanGibbons 10:554301a1579b 83 *
DanGibbons 10:554301a1579b 84 * void keyReleased( void ) {
DanGibbons 10:554301a1579b 85 * led2 = 0;
DanGibbons 10:554301a1579b 86 * led3 = 0;
DanGibbons 10:554301a1579b 87 * led4 = 0;
DanGibbons 10:554301a1579b 88 * }
DanGibbons 10:554301a1579b 89 *
DanGibbons 10:554301a1579b 90 * void keyPressedHeld( void ) {
DanGibbons 10:554301a1579b 91 * led3 = 1;
DanGibbons 10:554301a1579b 92 * }
DanGibbons 10:554301a1579b 93 *
DanGibbons 10:554301a1579b 94 * void keyReleasedHeld( void ) {
DanGibbons 10:554301a1579b 95 * led4 = 1;
DanGibbons 10:554301a1579b 96 * }
DanGibbons 10:554301a1579b 97 *
DanGibbons 10:554301a1579b 98 * int main() {
DanGibbons 10:554301a1579b 99 *
DanGibbons 10:554301a1579b 100 * pin.mode( PullDown );
DanGibbons 10:554301a1579b 101 * pin.attach_asserted( &keyPressed );
DanGibbons 10:554301a1579b 102 * pin.attach_deasserted( &keyReleased );
DanGibbons 10:554301a1579b 103 * pin.attach_asserted_held( &keyPressedHeld );
DanGibbons 10:554301a1579b 104 * pin.attach_deasserted_held( &keyReleasedHeld );
DanGibbons 10:554301a1579b 105 *
DanGibbons 10:554301a1579b 106 * // Sampling does not begin until you set a frequency.
DanGibbons 10:554301a1579b 107 * // The default is 20ms. If you want a different frequency
DanGibbons 10:554301a1579b 108 * // then pass the period in microseconds for example, for 10ms :-
DanGibbons 10:554301a1579b 109 * // pin.setSampleFrequency( 10000 );
DanGibbons 10:554301a1579b 110 * //
DanGibbons 10:554301a1579b 111 * pin.setSampleFrequency(); // Defaults to 20ms.
DanGibbons 10:554301a1579b 112 *
DanGibbons 10:554301a1579b 113 * while( 1 ) {
DanGibbons 10:554301a1579b 114 * led1 = !led1;
DanGibbons 10:554301a1579b 115 * wait( 0.2 );
DanGibbons 10:554301a1579b 116 * }
DanGibbons 10:554301a1579b 117 * }
DanGibbons 10:554301a1579b 118 * @endcode
DanGibbons 10:554301a1579b 119 *
DanGibbons 10:554301a1579b 120 * This example will flash led1 in a similar to a standard starting program.
DanGibbons 10:554301a1579b 121 *
DanGibbons 10:554301a1579b 122 * Applying a "1" (switch on) to pin 30 will switch on led2, removing the "1" to "0"
DanGibbons 10:554301a1579b 123 * (switch off) led2 goes out. Holding the "switch" at one for one second will switch
DanGibbons 10:554301a1579b 124 * on led3. An unasserted P30 (switched off) will, after one second illuminate led4
DanGibbons 10:554301a1579b 125 * when the deasserted calledback is called.
DanGibbons 10:554301a1579b 126 *
DanGibbons 10:554301a1579b 127 * The above is a very basic introduction. For more details:-
DanGibbons 10:554301a1579b 128 * @see example.h
DanGibbons 10:554301a1579b 129 */
DanGibbons 10:554301a1579b 130 class PinDetect {
DanGibbons 10:554301a1579b 131
DanGibbons 10:554301a1579b 132 protected:
DanGibbons 10:554301a1579b 133 DigitalIn *_in;
DanGibbons 10:554301a1579b 134 Ticker *_ticker;
DanGibbons 10:554301a1579b 135 int _prevState;
DanGibbons 10:554301a1579b 136 int _currentStateCounter;
DanGibbons 10:554301a1579b 137 int _sampleTime;
DanGibbons 10:554301a1579b 138 int _assertValue;
DanGibbons 10:554301a1579b 139 int _samplesTillAssertReload;
DanGibbons 10:554301a1579b 140 int _samplesTillAssert;
DanGibbons 10:554301a1579b 141 int _samplesTillHeldReload;
DanGibbons 10:554301a1579b 142 int _samplesTillHeld;
DanGibbons 10:554301a1579b 143 FunctionPointer _callbackAsserted;
DanGibbons 10:554301a1579b 144 FunctionPointer _callbackDeasserted;
DanGibbons 10:554301a1579b 145 FunctionPointer _callbackAssertedHeld;
DanGibbons 10:554301a1579b 146 FunctionPointer _callbackDeassertedHeld;
DanGibbons 10:554301a1579b 147
DanGibbons 10:554301a1579b 148 /** initialise class
DanGibbons 10:554301a1579b 149 *
DanGibbons 10:554301a1579b 150 * @param PinName p is a valid pin that supports DigitalIn
DanGibbons 10:554301a1579b 151 * @param PinMode m The mode the DigitalIn should use.
DanGibbons 10:554301a1579b 152 */
DanGibbons 10:554301a1579b 153 void init(PinName p, PinMode m) {
DanGibbons 10:554301a1579b 154 _sampleTime = PINDETECT_SAMPLE_PERIOD;
DanGibbons 10:554301a1579b 155 _samplesTillAssert = PINDETECT_ASSERT_COUNT;
DanGibbons 10:554301a1579b 156 _samplesTillHeld = 0;
DanGibbons 10:554301a1579b 157 _samplesTillAssertReload = PINDETECT_ASSERT_COUNT;
DanGibbons 10:554301a1579b 158 _samplesTillHeldReload = PINDETECT_HOLD_COUNT;
DanGibbons 10:554301a1579b 159 _assertValue = PINDETECT_PIN_ASSTERED;
DanGibbons 10:554301a1579b 160
DanGibbons 10:554301a1579b 161 _in = new DigitalIn( p );
DanGibbons 10:554301a1579b 162 _in->mode( m );
DanGibbons 10:554301a1579b 163 _prevState = _in->read();
DanGibbons 10:554301a1579b 164 _ticker = new Ticker;
DanGibbons 10:554301a1579b 165 }
DanGibbons 10:554301a1579b 166
DanGibbons 10:554301a1579b 167 public:
DanGibbons 10:554301a1579b 168
DanGibbons 10:554301a1579b 169 friend class Ticker;
DanGibbons 10:554301a1579b 170
DanGibbons 10:554301a1579b 171 PinDetect() { error("You must supply a PinName"); }
DanGibbons 10:554301a1579b 172
DanGibbons 10:554301a1579b 173 /** PinDetect constructor
DanGibbons 10:554301a1579b 174 *
DanGibbons 10:554301a1579b 175 * By default the PinMode is set to PullDown.
DanGibbons 10:554301a1579b 176 *
DanGibbons 10:554301a1579b 177 * @see http://mbed.org/handbook/DigitalIn
DanGibbons 10:554301a1579b 178 * @param p PinName is a valid pin that supports DigitalIn
DanGibbons 10:554301a1579b 179 */
DanGibbons 10:554301a1579b 180 PinDetect(PinName p) {
DanGibbons 10:554301a1579b 181 init( p, PullDown );
DanGibbons 10:554301a1579b 182 }
DanGibbons 10:554301a1579b 183
DanGibbons 10:554301a1579b 184 /** PinDetect constructor
DanGibbons 10:554301a1579b 185 *
DanGibbons 10:554301a1579b 186 * @see http://mbed.org/handbook/DigitalIn
DanGibbons 10:554301a1579b 187 * @param PinName p is a valid pin that supports DigitalIn
DanGibbons 10:554301a1579b 188 * @param PinMode m The mode the DigitalIn should use.
DanGibbons 10:554301a1579b 189 */
DanGibbons 10:554301a1579b 190 PinDetect(PinName p, PinMode m) {
DanGibbons 10:554301a1579b 191 init( p, m );
DanGibbons 10:554301a1579b 192 }
DanGibbons 10:554301a1579b 193
DanGibbons 10:554301a1579b 194 /** PinDetect destructor
DanGibbons 10:554301a1579b 195 */
DanGibbons 10:554301a1579b 196 ~PinDetect() {
DanGibbons 10:554301a1579b 197 if ( _ticker ) delete( _ticker );
DanGibbons 10:554301a1579b 198 if ( _in ) delete( _in );
DanGibbons 10:554301a1579b 199 }
DanGibbons 10:554301a1579b 200
DanGibbons 10:554301a1579b 201 /** Set the sampling time in microseconds.
DanGibbons 10:554301a1579b 202 *
DanGibbons 10:554301a1579b 203 * @param int The time between pin samples in microseconds.
DanGibbons 10:554301a1579b 204 */
DanGibbons 10:554301a1579b 205 void setSampleFrequency(int i = PINDETECT_SAMPLE_PERIOD) {
DanGibbons 10:554301a1579b 206 _sampleTime = i;
DanGibbons 10:554301a1579b 207 _prevState = _in->read();
DanGibbons 10:554301a1579b 208 _ticker->attach_us( this, &PinDetect::isr, _sampleTime );
DanGibbons 10:554301a1579b 209 }
DanGibbons 10:554301a1579b 210
DanGibbons 10:554301a1579b 211 /** Set the value used as assert.
DanGibbons 10:554301a1579b 212 *
DanGibbons 10:554301a1579b 213 * Defaults to 1 (ie if pin == 1 then pin asserted).
DanGibbons 10:554301a1579b 214 *
DanGibbons 10:554301a1579b 215 * @param int New assert value (1 or 0)
DanGibbons 10:554301a1579b 216 */
DanGibbons 10:554301a1579b 217 void setAssertValue (int i = PINDETECT_PIN_ASSTERED) { _assertValue = i & 1; }
DanGibbons 10:554301a1579b 218
DanGibbons 10:554301a1579b 219 /** Set the number of continuous samples until assert assumed.
DanGibbons 10:554301a1579b 220 *
DanGibbons 10:554301a1579b 221 * Defaults to 1 (1 * sample frequency).
DanGibbons 10:554301a1579b 222 *
DanGibbons 10:554301a1579b 223 * @param int The number of continuous samples until assert assumed.
DanGibbons 10:554301a1579b 224 */
DanGibbons 10:554301a1579b 225 void setSamplesTillAssert(int i) { _samplesTillAssertReload = i; }
DanGibbons 10:554301a1579b 226
DanGibbons 10:554301a1579b 227 /** Set the number of continuous samples until held assumed.
DanGibbons 10:554301a1579b 228 *
DanGibbons 10:554301a1579b 229 * Defaults to 50 * sample frequency.
DanGibbons 10:554301a1579b 230 *
DanGibbons 10:554301a1579b 231 * @param int The number of continuous samples until held assumed.
DanGibbons 10:554301a1579b 232 */
DanGibbons 10:554301a1579b 233 void setSamplesTillHeld(int i) { _samplesTillHeldReload = i; }
DanGibbons 10:554301a1579b 234
DanGibbons 10:554301a1579b 235 /** Set the pin mode.
DanGibbons 10:554301a1579b 236 *
DanGibbons 10:554301a1579b 237 * @see http://mbed.org/projects/libraries/api/mbed/trunk/DigitalInOut#DigitalInOut.mode
DanGibbons 10:554301a1579b 238 * @param PinMode m The mode to pass on to the DigitalIn
DanGibbons 10:554301a1579b 239 */
DanGibbons 10:554301a1579b 240 void mode(PinMode m) { _in->mode( m ); }
DanGibbons 10:554301a1579b 241
DanGibbons 10:554301a1579b 242 /** Attach a callback function
DanGibbons 10:554301a1579b 243 *
DanGibbons 10:554301a1579b 244 * @code
DanGibbons 10:554301a1579b 245 *
DanGibbons 10:554301a1579b 246 * DigitalOut led1( LED1 );
DanGibbons 10:554301a1579b 247 * PinDetect pin( p30 );
DanGibbons 10:554301a1579b 248 *
DanGibbons 10:554301a1579b 249 * void myCallback( void ) {
DanGibbons 10:554301a1579b 250 * led1 = 1;
DanGibbons 10:554301a1579b 251 * };
DanGibbons 10:554301a1579b 252 *
DanGibbons 10:554301a1579b 253 * main() {
DanGibbons 10:554301a1579b 254 * pin.attach_asserted( &myCallback );
DanGibbons 10:554301a1579b 255 * }
DanGibbons 10:554301a1579b 256 *
DanGibbons 10:554301a1579b 257 * @endcode
DanGibbons 10:554301a1579b 258 *
DanGibbons 10:554301a1579b 259 * Call this function when a pin is asserted.
DanGibbons 10:554301a1579b 260 * @param function A C function pointer
DanGibbons 10:554301a1579b 261 */
DanGibbons 10:554301a1579b 262 void attach_asserted(void (*function)(void)) {
DanGibbons 10:554301a1579b 263 _callbackAsserted.attach( function );
DanGibbons 10:554301a1579b 264 }
DanGibbons 10:554301a1579b 265
DanGibbons 10:554301a1579b 266 /** Attach a callback object/method
DanGibbons 10:554301a1579b 267 *
DanGibbons 10:554301a1579b 268 * @code
DanGibbons 10:554301a1579b 269 *
DanGibbons 10:554301a1579b 270 * class Bar {
DanGibbons 10:554301a1579b 271 * public:
DanGibbons 10:554301a1579b 272 * void myCallback( void ) { led1 = 1; }
DanGibbons 10:554301a1579b 273 * };
DanGibbons 10:554301a1579b 274 *
DanGibbons 10:554301a1579b 275 * DigitalOut led1( LED1 );
DanGibbons 10:554301a1579b 276 * PinDetect pin( p30 );
DanGibbons 10:554301a1579b 277 * Bar bar;
DanGibbons 10:554301a1579b 278 *
DanGibbons 10:554301a1579b 279 * main() {
DanGibbons 10:554301a1579b 280 * pin.attach_asserted( &bar, &Bar::myCallback );
DanGibbons 10:554301a1579b 281 * }
DanGibbons 10:554301a1579b 282 *
DanGibbons 10:554301a1579b 283 * @endcode
DanGibbons 10:554301a1579b 284 *
DanGibbons 10:554301a1579b 285 * Call this function when a pin is asserted.
DanGibbons 10:554301a1579b 286 * @param object An object that conatins the callback method.
DanGibbons 10:554301a1579b 287 * @param method The method within the object to call.
DanGibbons 10:554301a1579b 288 */
DanGibbons 10:554301a1579b 289 template<typename T>
DanGibbons 10:554301a1579b 290 void attach_asserted(T *object, void (T::*member)(void)) {
DanGibbons 10:554301a1579b 291 _callbackAsserted.attach( object, member );
DanGibbons 10:554301a1579b 292 }
DanGibbons 10:554301a1579b 293
DanGibbons 10:554301a1579b 294 /** Attach a callback function
DanGibbons 10:554301a1579b 295 *
DanGibbons 10:554301a1579b 296 * @code
DanGibbons 10:554301a1579b 297 *
DanGibbons 10:554301a1579b 298 * DigitalOut led1( LED1 );
DanGibbons 10:554301a1579b 299 * PinDetect pin( p30 );
DanGibbons 10:554301a1579b 300 *
DanGibbons 10:554301a1579b 301 * void myCallback( void ) {
DanGibbons 10:554301a1579b 302 * led1 = 0;
DanGibbons 10:554301a1579b 303 * };
DanGibbons 10:554301a1579b 304 *
DanGibbons 10:554301a1579b 305 * main() {
DanGibbons 10:554301a1579b 306 * pin.attach_deasserted( &myCallback );
DanGibbons 10:554301a1579b 307 * }
DanGibbons 10:554301a1579b 308 *
DanGibbons 10:554301a1579b 309 * @endcode
DanGibbons 10:554301a1579b 310 *
DanGibbons 10:554301a1579b 311 * Call this function when a pin is deasserted.
DanGibbons 10:554301a1579b 312 * @param function A C function pointer
DanGibbons 10:554301a1579b 313 */
DanGibbons 10:554301a1579b 314 void attach_deasserted(void (*function)(void)) {
DanGibbons 10:554301a1579b 315 _callbackDeasserted.attach( function );
DanGibbons 10:554301a1579b 316 }
DanGibbons 10:554301a1579b 317
DanGibbons 10:554301a1579b 318 /** Attach a callback object/method
DanGibbons 10:554301a1579b 319 *
DanGibbons 10:554301a1579b 320 * @code
DanGibbons 10:554301a1579b 321 *
DanGibbons 10:554301a1579b 322 * class Bar {
DanGibbons 10:554301a1579b 323 * public:
DanGibbons 10:554301a1579b 324 * void myCallback( void ) { led1 = 0; }
DanGibbons 10:554301a1579b 325 * };
DanGibbons 10:554301a1579b 326 *
DanGibbons 10:554301a1579b 327 * DigitalOut led1( LED1 );
DanGibbons 10:554301a1579b 328 * PinDetect pin( p30 );
DanGibbons 10:554301a1579b 329 * Bar bar;
DanGibbons 10:554301a1579b 330 *
DanGibbons 10:554301a1579b 331 * main() {
DanGibbons 10:554301a1579b 332 * pin.attach_deasserted( &bar, &Bar::myCallback );
DanGibbons 10:554301a1579b 333 * }
DanGibbons 10:554301a1579b 334 *
DanGibbons 10:554301a1579b 335 * @endcode
DanGibbons 10:554301a1579b 336 *
DanGibbons 10:554301a1579b 337 * Call this function when a pin is deasserted.
DanGibbons 10:554301a1579b 338 * @param object An object that conatins the callback method.
DanGibbons 10:554301a1579b 339 * @param method The method within the object to call.
DanGibbons 10:554301a1579b 340 */
DanGibbons 10:554301a1579b 341 template<typename T>
DanGibbons 10:554301a1579b 342 void attach_deasserted(T *object, void (T::*member)(void)) {
DanGibbons 10:554301a1579b 343 _callbackDeasserted.attach( object, member );
DanGibbons 10:554301a1579b 344 }
DanGibbons 10:554301a1579b 345
DanGibbons 10:554301a1579b 346 /** Attach a callback function
DanGibbons 10:554301a1579b 347 *
DanGibbons 10:554301a1579b 348 * @code
DanGibbons 10:554301a1579b 349 *
DanGibbons 10:554301a1579b 350 * DigitalOut led2( LED2 );
DanGibbons 10:554301a1579b 351 * PinDetect pin( p30 );
DanGibbons 10:554301a1579b 352 *
DanGibbons 10:554301a1579b 353 * void myCallback( void ) {
DanGibbons 10:554301a1579b 354 * led2 = 1;
DanGibbons 10:554301a1579b 355 * };
DanGibbons 10:554301a1579b 356 *
DanGibbons 10:554301a1579b 357 * main() {
DanGibbons 10:554301a1579b 358 * pin.attach_asserted_held( &myCallback );
DanGibbons 10:554301a1579b 359 * }
DanGibbons 10:554301a1579b 360 *
DanGibbons 10:554301a1579b 361 * @endcode
DanGibbons 10:554301a1579b 362 *
DanGibbons 10:554301a1579b 363 * Call this function when a pin is asserted and held.
DanGibbons 10:554301a1579b 364 * @param function A C function pointer
DanGibbons 10:554301a1579b 365 */
DanGibbons 10:554301a1579b 366 void attach_asserted_held(void (*function)(void)) {
DanGibbons 10:554301a1579b 367 _callbackAssertedHeld.attach( function );
DanGibbons 10:554301a1579b 368 }
DanGibbons 10:554301a1579b 369
DanGibbons 10:554301a1579b 370 /** Attach a callback object/method
DanGibbons 10:554301a1579b 371 *
DanGibbons 10:554301a1579b 372 * @code
DanGibbons 10:554301a1579b 373 *
DanGibbons 10:554301a1579b 374 * class Bar {
DanGibbons 10:554301a1579b 375 * public:
DanGibbons 10:554301a1579b 376 * void myCallback( void ) { led2 = 0; }
DanGibbons 10:554301a1579b 377 * };
DanGibbons 10:554301a1579b 378 *
DanGibbons 10:554301a1579b 379 * DigitalOut led2( LED2 );
DanGibbons 10:554301a1579b 380 * PinDetect pin( p30 );
DanGibbons 10:554301a1579b 381 * Bar bar;
DanGibbons 10:554301a1579b 382 *
DanGibbons 10:554301a1579b 383 * main() {
DanGibbons 10:554301a1579b 384 * pin.attach_asserted_held( &bar, &Bar::myCallback );
DanGibbons 10:554301a1579b 385 * }
DanGibbons 10:554301a1579b 386 *
DanGibbons 10:554301a1579b 387 * @endcode
DanGibbons 10:554301a1579b 388 *
DanGibbons 10:554301a1579b 389 * Call this function when a pin is asserted and held.
DanGibbons 10:554301a1579b 390 * @param object An object that conatins the callback method.
DanGibbons 10:554301a1579b 391 * @param method The method within the object to call.
DanGibbons 10:554301a1579b 392 */
DanGibbons 10:554301a1579b 393 template<typename T>
DanGibbons 10:554301a1579b 394 void attach_asserted_held(T *object, void (T::*member)(void)) {
DanGibbons 10:554301a1579b 395 _callbackAssertedHeld.attach( object, member );
DanGibbons 10:554301a1579b 396 }
DanGibbons 10:554301a1579b 397
DanGibbons 10:554301a1579b 398 /** Attach a callback function
DanGibbons 10:554301a1579b 399 *
DanGibbons 10:554301a1579b 400 * @code
DanGibbons 10:554301a1579b 401 *
DanGibbons 10:554301a1579b 402 * DigitalOut led3( LED3 );
DanGibbons 10:554301a1579b 403 * PinDetect pin( p30 );
DanGibbons 10:554301a1579b 404 *
DanGibbons 10:554301a1579b 405 * void myCallback( void ) {
DanGibbons 10:554301a1579b 406 * led3 = 1;
DanGibbons 10:554301a1579b 407 * };
DanGibbons 10:554301a1579b 408 *
DanGibbons 10:554301a1579b 409 * main() {
DanGibbons 10:554301a1579b 410 * pin.attach_deasserted_held( &myCallback );
DanGibbons 10:554301a1579b 411 * }
DanGibbons 10:554301a1579b 412 *
DanGibbons 10:554301a1579b 413 * @endcode
DanGibbons 10:554301a1579b 414 *
DanGibbons 10:554301a1579b 415 * Call this function when a pin is deasserted and held.
DanGibbons 10:554301a1579b 416 * @param function A C function pointer
DanGibbons 10:554301a1579b 417 */
DanGibbons 10:554301a1579b 418 void attach_deasserted_held(void (*function)(void)) {
DanGibbons 10:554301a1579b 419 _callbackDeassertedHeld.attach( function );
DanGibbons 10:554301a1579b 420 }
DanGibbons 10:554301a1579b 421
DanGibbons 10:554301a1579b 422 /** Attach a callback object/method
DanGibbons 10:554301a1579b 423 *
DanGibbons 10:554301a1579b 424 * @code
DanGibbons 10:554301a1579b 425 *
DanGibbons 10:554301a1579b 426 * class Bar {
DanGibbons 10:554301a1579b 427 * public:
DanGibbons 10:554301a1579b 428 * void myCallback( void ) { led3 = 0; }
DanGibbons 10:554301a1579b 429 * };
DanGibbons 10:554301a1579b 430 *
DanGibbons 10:554301a1579b 431 * DigitalOut led3( LED3 );
DanGibbons 10:554301a1579b 432 * PinDetect pin( p30 );
DanGibbons 10:554301a1579b 433 * Bar bar;
DanGibbons 10:554301a1579b 434 *
DanGibbons 10:554301a1579b 435 * main() {
DanGibbons 10:554301a1579b 436 * pin.attach_deasserted_held( &bar, &Bar::myCallback );
DanGibbons 10:554301a1579b 437 * }
DanGibbons 10:554301a1579b 438 *
DanGibbons 10:554301a1579b 439 * @endcode
DanGibbons 10:554301a1579b 440 *
DanGibbons 10:554301a1579b 441 * Call this function when a pin is deasserted and held.
DanGibbons 10:554301a1579b 442 * @param object An object that conatins the callback method.
DanGibbons 10:554301a1579b 443 * @param method The method within the object to call.
DanGibbons 10:554301a1579b 444 */
DanGibbons 10:554301a1579b 445 template<typename T>
DanGibbons 10:554301a1579b 446 void attach_deasserted_held(T *object, void (T::*member)(void)) {
DanGibbons 10:554301a1579b 447 _callbackDeassertedHeld.attach( object, member );
DanGibbons 10:554301a1579b 448 }
DanGibbons 10:554301a1579b 449
DanGibbons 10:554301a1579b 450 /** operator int()
DanGibbons 10:554301a1579b 451 *
DanGibbons 10:554301a1579b 452 * Read the value of the pin being sampled.
DanGibbons 10:554301a1579b 453 */
DanGibbons 10:554301a1579b 454 operator int() { return _in->read(); }
DanGibbons 10:554301a1579b 455
DanGibbons 10:554301a1579b 456 protected:
DanGibbons 10:554301a1579b 457 /** The Ticker periodic callback function
DanGibbons 10:554301a1579b 458 */
DanGibbons 10:554301a1579b 459 void isr(void) {
DanGibbons 10:554301a1579b 460 int currentState = _in->read();
DanGibbons 10:554301a1579b 461
DanGibbons 10:554301a1579b 462 if ( currentState != _prevState ) {
DanGibbons 10:554301a1579b 463 if ( _samplesTillAssert == 0 ) {
DanGibbons 10:554301a1579b 464 _prevState = currentState;
DanGibbons 10:554301a1579b 465 _samplesTillHeld = _samplesTillHeldReload;
DanGibbons 10:554301a1579b 466 if ( currentState == _assertValue )
DanGibbons 10:554301a1579b 467 _callbackAsserted.call();
DanGibbons 10:554301a1579b 468 else
DanGibbons 10:554301a1579b 469 _callbackDeasserted.call();
DanGibbons 10:554301a1579b 470 }
DanGibbons 10:554301a1579b 471 else {
DanGibbons 10:554301a1579b 472 _samplesTillAssert--;
DanGibbons 10:554301a1579b 473 }
DanGibbons 10:554301a1579b 474 }
DanGibbons 10:554301a1579b 475 else {
DanGibbons 10:554301a1579b 476 _samplesTillAssert = _samplesTillAssertReload;
DanGibbons 10:554301a1579b 477 }
DanGibbons 10:554301a1579b 478
DanGibbons 10:554301a1579b 479 if ( _samplesTillHeld ) {
DanGibbons 10:554301a1579b 480 if ( _prevState == currentState ) {
DanGibbons 10:554301a1579b 481 _samplesTillHeld--;
DanGibbons 10:554301a1579b 482 if ( _samplesTillHeld == 0 ) {
DanGibbons 10:554301a1579b 483 if ( currentState == _assertValue )
DanGibbons 10:554301a1579b 484 _callbackAssertedHeld.call();
DanGibbons 10:554301a1579b 485 else
DanGibbons 10:554301a1579b 486 _callbackDeassertedHeld.call();
DanGibbons 10:554301a1579b 487 }
DanGibbons 10:554301a1579b 488 }
DanGibbons 10:554301a1579b 489 else {
DanGibbons 10:554301a1579b 490 _samplesTillHeld = 0;
DanGibbons 10:554301a1579b 491 }
DanGibbons 10:554301a1579b 492 }
DanGibbons 10:554301a1579b 493 }
DanGibbons 10:554301a1579b 494
DanGibbons 10:554301a1579b 495 };
DanGibbons 10:554301a1579b 496
DanGibbons 10:554301a1579b 497 }; // namespace AjK ends.
DanGibbons 10:554301a1579b 498
DanGibbons 10:554301a1579b 499 using namespace AjK;
DanGibbons 10:554301a1579b 500
DanGibbons 10:554301a1579b 501 #endif