Embedded Artists / Mbed OS DMSupport

A board support package for the LPC4088 Display Module.

Dependencies:   DM_HttpServer DM_USBHost

Dependents:   lpc4088_displaymodule_emwin lpc4088_displaymodule_demo_sphere sampleGUI sampleEmptyGUI ... more

Fork of DMSupport by EmbeddedArtists AB

Display/BiosTouch.cpp@26:a65fbb4bde5c, 2015-01-22 (annotated)

Committer:
embeddedartists
Date:
Thu Jan 22 16:04:54 2015 +0100
Revision:
26:a65fbb4bde5c
Parent:
24:9a677afc86f1
Child:
28:8ae20cb0b943
- Changed BIOS version info to BOARD_ID.MAJ.MIN.REV

- Added support for interrupt drive I2C for the BIOS

Who changed what in which revision?

UserRevisionLine numberNew contents of line
embeddedartists 22:1a58a518435c 1 /*
embeddedartists 22:1a58a518435c 2 * Copyright 2014 Embedded Artists AB
embeddedartists 22:1a58a518435c 3 *
embeddedartists 22:1a58a518435c 4 * Licensed under the Apache License, Version 2.0 (the "License");
embeddedartists 22:1a58a518435c 5 * you may not use this file except in compliance with the License.
embeddedartists 22:1a58a518435c 6 * You may obtain a copy of the License at
embeddedartists 22:1a58a518435c 7 *
embeddedartists 22:1a58a518435c 8 * http://www.apache.org/licenses/LICENSE-2.0
embeddedartists 22:1a58a518435c 9 *
embeddedartists 22:1a58a518435c 10 * Unless required by applicable law or agreed to in writing, software
embeddedartists 22:1a58a518435c 11 * distributed under the License is distributed on an "AS IS" BASIS,
embeddedartists 22:1a58a518435c 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
embeddedartists 22:1a58a518435c 13 * See the License for the specific language governing permissions and
embeddedartists 22:1a58a518435c 14 * limitations under the License.
embeddedartists 22:1a58a518435c 15 */
embeddedartists 22:1a58a518435c 16
embeddedartists 22:1a58a518435c 17 #include "mbed.h"
embeddedartists 22:1a58a518435c 18 #include "BiosTouch.h"
embeddedartists 22:1a58a518435c 19 #include "BiosLoader.h"
embeddedartists 22:1a58a518435c 20 #include "DMBoard.h"
embeddedartists 22:1a58a518435c 21 #include "bios.h"
embeddedartists 22:1a58a518435c 22 #include "meas.h"
embeddedartists 22:1a58a518435c 23
embeddedartists 22:1a58a518435c 24 /******************************************************************************
embeddedartists 22:1a58a518435c 25 * Defines and typedefs
embeddedartists 22:1a58a518435c 26 *****************************************************************************/
embeddedartists 22:1a58a518435c 27
embeddedartists 26:a65fbb4bde5c 28 #define NUM_COORDS 5
embeddedartists 26:a65fbb4bde5c 29 #define NUM_MAILS 10
embeddedartists 26:a65fbb4bde5c 30 typedef struct {
embeddedartists 26:a65fbb4bde5c 31 touch_coordinate_t touch[NUM_COORDS];
embeddedartists 26:a65fbb4bde5c 32 int num;
embeddedartists 26:a65fbb4bde5c 33 } touch_mail_t;
embeddedartists 26:a65fbb4bde5c 34
embeddedartists 22:1a58a518435c 35 #define SIG_NEW_DATA 0x1
embeddedartists 22:1a58a518435c 36 class TouchHandler {
embeddedartists 22:1a58a518435c 37 public:
embeddedartists 22:1a58a518435c 38 TouchHandler(bios_header_t* bios, void* biosData, int num) :
embeddedartists 22:1a58a518435c 39 _latest(NULL), _touchIRQ(P2_25), _bios(bios),
embeddedartists 26:a65fbb4bde5c 40 _biosData(biosData), _points(num),
embeddedartists 26:a65fbb4bde5c 41 _listener(NULL), _lostData(0),
embeddedartists 26:a65fbb4bde5c 42 _dbgAdded(0), _dbgRemoved(0) {}
embeddedartists 22:1a58a518435c 43 void handleTouchInterrupt();
embeddedartists 26:a65fbb4bde5c 44 void handleI2CInterrupt();
embeddedartists 26:a65fbb4bde5c 45 void handleNewData(touch_coordinate_t* coord, int num);
embeddedartists 22:1a58a518435c 46 void changeTouchInterrupt(bool enable, bool rising);
embeddedartists 22:1a58a518435c 47 TouchPanel::TouchError read(touch_coordinate_t* coord, int num);
embeddedartists 22:1a58a518435c 48 void run();
embeddedartists 22:1a58a518435c 49 FunctionPointer* setListener(FunctionPointer* listener);
embeddedartists 22:1a58a518435c 50 private:
embeddedartists 26:a65fbb4bde5c 51 Mail<touch_mail_t, NUM_MAILS> _mailbox;
embeddedartists 22:1a58a518435c 52 Mutex _mutex;
embeddedartists 22:1a58a518435c 53 touch_coordinate_t* _latest;
embeddedartists 22:1a58a518435c 54 InterruptIn _touchIRQ;
embeddedartists 22:1a58a518435c 55 bios_header_t* _bios;
embeddedartists 22:1a58a518435c 56 void* _biosData;
embeddedartists 22:1a58a518435c 57 int _points;
embeddedartists 22:1a58a518435c 58 FunctionPointer* _listener;
embeddedartists 26:a65fbb4bde5c 59 uint32_t _lostData;
embeddedartists 26:a65fbb4bde5c 60 uint32_t _dbgAdded;
embeddedartists 26:a65fbb4bde5c 61 uint32_t _dbgRemoved;
embeddedartists 22:1a58a518435c 62 };
embeddedartists 22:1a58a518435c 63
embeddedartists 22:1a58a518435c 64 /******************************************************************************
embeddedartists 22:1a58a518435c 65 * Local variables
embeddedartists 22:1a58a518435c 66 *****************************************************************************/
embeddedartists 22:1a58a518435c 67
embeddedartists 26:a65fbb4bde5c 68 static TouchHandler* theTouchHandler = NULL; // ugly but needed for IRQ
embeddedartists 26:a65fbb4bde5c 69
embeddedartists 22:1a58a518435c 70 /******************************************************************************
embeddedartists 22:1a58a518435c 71 * Private Functions
embeddedartists 22:1a58a518435c 72 *****************************************************************************/
embeddedartists 22:1a58a518435c 73
embeddedartists 26:a65fbb4bde5c 74 static void touch_i2c0_irq_handler()
embeddedartists 26:a65fbb4bde5c 75 {
embeddedartists 26:a65fbb4bde5c 76 if (theTouchHandler != NULL) {
embeddedartists 26:a65fbb4bde5c 77 theTouchHandler->handleI2CInterrupt();
embeddedartists 26:a65fbb4bde5c 78 }
embeddedartists 26:a65fbb4bde5c 79 }
embeddedartists 26:a65fbb4bde5c 80
embeddedartists 22:1a58a518435c 81 BiosTouch::BiosTouch() :
embeddedartists 22:1a58a518435c 82 _initialized(false),
embeddedartists 22:1a58a518435c 83 _haveInfo(false),
embeddedartists 22:1a58a518435c 84 _poweredOn(false),
embeddedartists 22:1a58a518435c 85 //_touchIRQ(P2_25),
embeddedartists 22:1a58a518435c 86 _bios(NULL),
embeddedartists 22:1a58a518435c 87 _biosData(NULL),
embeddedartists 22:1a58a518435c 88 _handlerThread(NULL),
embeddedartists 22:1a58a518435c 89 _handler(NULL),
embeddedartists 22:1a58a518435c 90 _supportsTouch(false)
embeddedartists 22:1a58a518435c 91 {
embeddedartists 22:1a58a518435c 92 }
embeddedartists 22:1a58a518435c 93
embeddedartists 22:1a58a518435c 94 BiosTouch::~BiosTouch()
embeddedartists 22:1a58a518435c 95 {
embeddedartists 22:1a58a518435c 96 // _bios and _biosData are deallocated by BiosLoader
embeddedartists 22:1a58a518435c 97
embeddedartists 22:1a58a518435c 98 if (_handlerThread != NULL) {
embeddedartists 22:1a58a518435c 99 delete _handlerThread;
embeddedartists 22:1a58a518435c 100 _handlerThread = NULL;
embeddedartists 22:1a58a518435c 101 }
embeddedartists 22:1a58a518435c 102 if (_handler != NULL) {
embeddedartists 22:1a58a518435c 103 delete _handler;
embeddedartists 22:1a58a518435c 104 _handler = NULL;
embeddedartists 22:1a58a518435c 105 }
embeddedartists 22:1a58a518435c 106 }
embeddedartists 22:1a58a518435c 107
embeddedartists 22:1a58a518435c 108 // Function called from the BIOS
embeddedartists 22:1a58a518435c 109 static void touchIrqEnabler(uint32_t arg, bool enable, bool rising)
embeddedartists 22:1a58a518435c 110 {
embeddedartists 22:1a58a518435c 111 ((TouchHandler*)arg)->changeTouchInterrupt(enable, rising);
embeddedartists 26:a65fbb4bde5c 112 }
embeddedartists 26:a65fbb4bde5c 113
embeddedartists 26:a65fbb4bde5c 114 // Function called from the BIOS
embeddedartists 26:a65fbb4bde5c 115 static void touchNewData(uint32_t arg, touch_coordinate_t* coords, int num)
embeddedartists 26:a65fbb4bde5c 116 {
embeddedartists 26:a65fbb4bde5c 117 ((TouchHandler*)arg)->handleNewData(coords, num);
embeddedartists 22:1a58a518435c 118 }
embeddedartists 22:1a58a518435c 119
embeddedartists 22:1a58a518435c 120 static void touchTask(void const* args)
embeddedartists 22:1a58a518435c 121 {
embeddedartists 22:1a58a518435c 122 ((TouchHandler*)args)->run();
embeddedartists 22:1a58a518435c 123 }
embeddedartists 22:1a58a518435c 124
embeddedartists 22:1a58a518435c 125
embeddedartists 22:1a58a518435c 126 void TouchHandler::run()
embeddedartists 22:1a58a518435c 127 {
embeddedartists 22:1a58a518435c 128 RtosLog* log = DMBoard::instance().logger();
embeddedartists 26:a65fbb4bde5c 129
embeddedartists 22:1a58a518435c 130 _latest = (touch_coordinate_t*)malloc(_points*sizeof(touch_coordinate_t));
embeddedartists 22:1a58a518435c 131 if (_latest == NULL) {
embeddedartists 22:1a58a518435c 132 log->printf("Failed to allocate memory for touch events\n");
embeddedartists 22:1a58a518435c 133 mbed_die();
embeddedartists 22:1a58a518435c 134 }
embeddedartists 22:1a58a518435c 135 memset(_latest, 0, _points*sizeof(touch_coordinate_t));
embeddedartists 22:1a58a518435c 136 while(true) {
embeddedartists 26:a65fbb4bde5c 137 SET_MEAS_PIN_1();
embeddedartists 26:a65fbb4bde5c 138 osEvent evt = _mailbox.get(osWaitForever);
embeddedartists 26:a65fbb4bde5c 139 CLR_MEAS_PIN_1();
embeddedartists 26:a65fbb4bde5c 140 if (evt.status == osEventMail) {
embeddedartists 26:a65fbb4bde5c 141 touch_mail_t* mail = (touch_mail_t*)evt.value.p;
embeddedartists 26:a65fbb4bde5c 142 memcpy(_latest, mail->touch, mail->num * sizeof(touch_coordinate_t));
embeddedartists 26:a65fbb4bde5c 143 _mailbox.free(mail);
embeddedartists 26:a65fbb4bde5c 144 _dbgRemoved++;
embeddedartists 26:a65fbb4bde5c 145 if (_points == 1) {
embeddedartists 26:a65fbb4bde5c 146 log->printf("{%3d,%3d,%d} at %u/%u, with %u lost\n",
embeddedartists 26:a65fbb4bde5c 147 _latest[0].x,
embeddedartists 26:a65fbb4bde5c 148 _latest[0].y,
embeddedartists 26:a65fbb4bde5c 149 _latest[0].z,
embeddedartists 26:a65fbb4bde5c 150 _dbgRemoved, _dbgAdded,
embeddedartists 26:a65fbb4bde5c 151 _lostData);
embeddedartists 24:9a677afc86f1 152 } else {
embeddedartists 26:a65fbb4bde5c 153 log->printf("{%d,%d,%d,%d,%d} at %u/%u, with %u lost\n",
embeddedartists 26:a65fbb4bde5c 154 _latest[0].z,
embeddedartists 26:a65fbb4bde5c 155 _latest[1].z,
embeddedartists 26:a65fbb4bde5c 156 _latest[2].z,
embeddedartists 26:a65fbb4bde5c 157 _latest[3].z,
embeddedartists 26:a65fbb4bde5c 158 _latest[4].z,
embeddedartists 26:a65fbb4bde5c 159 _dbgRemoved, _dbgAdded,
embeddedartists 26:a65fbb4bde5c 160 _lostData);
embeddedartists 24:9a677afc86f1 161 }
embeddedartists 26:a65fbb4bde5c 162 } else {
embeddedartists 26:a65fbb4bde5c 163 log->printf("got non-mail event: 0x%x\n", evt.status);
embeddedartists 26:a65fbb4bde5c 164 continue;
embeddedartists 26:a65fbb4bde5c 165 }
embeddedartists 26:a65fbb4bde5c 166 _mutex.lock();
embeddedartists 26:a65fbb4bde5c 167 FunctionPointer* fp = _listener;
embeddedartists 26:a65fbb4bde5c 168 _mutex.unlock();
embeddedartists 26:a65fbb4bde5c 169
embeddedartists 26:a65fbb4bde5c 170 if (fp != NULL) {
embeddedartists 26:a65fbb4bde5c 171 fp->call();
embeddedartists 26:a65fbb4bde5c 172 }
embeddedartists 22:1a58a518435c 173 }
embeddedartists 22:1a58a518435c 174 }
embeddedartists 22:1a58a518435c 175
embeddedartists 22:1a58a518435c 176 TouchPanel::TouchError TouchHandler::read(touch_coordinate_t* coord, int num)
embeddedartists 22:1a58a518435c 177 {
embeddedartists 22:1a58a518435c 178 if (num > _points || num < 1) {
embeddedartists 22:1a58a518435c 179 return TouchPanel::TouchError_InvalidParam;
embeddedartists 22:1a58a518435c 180 }
embeddedartists 22:1a58a518435c 181 _mutex.lock();
embeddedartists 22:1a58a518435c 182 memcpy(coord, _latest, num*sizeof(touch_coordinate_t));
embeddedartists 22:1a58a518435c 183 _mutex.unlock();
embeddedartists 22:1a58a518435c 184
embeddedartists 22:1a58a518435c 185 return TouchPanel::TouchError_Ok;
embeddedartists 22:1a58a518435c 186 }
embeddedartists 22:1a58a518435c 187
embeddedartists 22:1a58a518435c 188 void TouchHandler::handleTouchInterrupt()
embeddedartists 22:1a58a518435c 189 {
embeddedartists 22:1a58a518435c 190 SET_MEAS_PIN_2();
embeddedartists 26:a65fbb4bde5c 191 _bios->touchIrqHandler(_biosData);
embeddedartists 26:a65fbb4bde5c 192 CLR_MEAS_PIN_2();
embeddedartists 26:a65fbb4bde5c 193 }
embeddedartists 26:a65fbb4bde5c 194
embeddedartists 26:a65fbb4bde5c 195 void TouchHandler::handleI2CInterrupt()
embeddedartists 26:a65fbb4bde5c 196 {
embeddedartists 26:a65fbb4bde5c 197 SET_MEAS_PIN_3();
embeddedartists 26:a65fbb4bde5c 198 _bios->touchI2CIRQHandler(_biosData);
embeddedartists 26:a65fbb4bde5c 199 CLR_MEAS_PIN_3();
embeddedartists 26:a65fbb4bde5c 200 }
embeddedartists 26:a65fbb4bde5c 201
embeddedartists 26:a65fbb4bde5c 202 void TouchHandler::handleNewData(touch_coordinate_t* coord, int num)
embeddedartists 26:a65fbb4bde5c 203 {
embeddedartists 26:a65fbb4bde5c 204 SET_MEAS_PIN_4();
embeddedartists 26:a65fbb4bde5c 205 touch_mail_t* mail = _mailbox.alloc(0);
embeddedartists 26:a65fbb4bde5c 206 if (mail == NULL) {
embeddedartists 26:a65fbb4bde5c 207 //DMBoard::instance().logger()->printf("Lost touch event\n");
embeddedartists 26:a65fbb4bde5c 208 _lostData++;
embeddedartists 26:a65fbb4bde5c 209 } else {
embeddedartists 26:a65fbb4bde5c 210 _dbgAdded++;
embeddedartists 26:a65fbb4bde5c 211 mail->num = (num < NUM_COORDS) ? num : NUM_COORDS;
embeddedartists 26:a65fbb4bde5c 212 memcpy(&mail->touch, coord, mail->num*sizeof(touch_coordinate_t));
embeddedartists 26:a65fbb4bde5c 213 _mailbox.put(mail);
embeddedartists 22:1a58a518435c 214 }
embeddedartists 26:a65fbb4bde5c 215 CLR_MEAS_PIN_4();
embeddedartists 22:1a58a518435c 216 }
embeddedartists 22:1a58a518435c 217
embeddedartists 22:1a58a518435c 218 void TouchHandler::changeTouchInterrupt(bool enable, bool rising)
embeddedartists 22:1a58a518435c 219 {
embeddedartists 22:1a58a518435c 220 if (enable) {
embeddedartists 22:1a58a518435c 221 if (rising) {
embeddedartists 22:1a58a518435c 222 _touchIRQ.rise(this, &TouchHandler::handleTouchInterrupt);
embeddedartists 22:1a58a518435c 223 } else {
embeddedartists 22:1a58a518435c 224 _touchIRQ.fall(this, &TouchHandler::handleTouchInterrupt);
embeddedartists 22:1a58a518435c 225 }
embeddedartists 22:1a58a518435c 226 } else {
embeddedartists 22:1a58a518435c 227 if (rising) {
embeddedartists 22:1a58a518435c 228 _touchIRQ.rise(NULL);
embeddedartists 22:1a58a518435c 229 } else {
embeddedartists 22:1a58a518435c 230 _touchIRQ.fall(NULL);
embeddedartists 22:1a58a518435c 231 }
embeddedartists 22:1a58a518435c 232 }
embeddedartists 22:1a58a518435c 233 }
embeddedartists 22:1a58a518435c 234
embeddedartists 22:1a58a518435c 235 FunctionPointer* TouchHandler::setListener(FunctionPointer* listener)
embeddedartists 22:1a58a518435c 236 {
embeddedartists 22:1a58a518435c 237 _mutex.lock();
embeddedartists 22:1a58a518435c 238 FunctionPointer* old = _listener;
embeddedartists 22:1a58a518435c 239 _listener = listener;
embeddedartists 22:1a58a518435c 240 _mutex.unlock();
embeddedartists 22:1a58a518435c 241 return old;
embeddedartists 22:1a58a518435c 242 }
embeddedartists 22:1a58a518435c 243
embeddedartists 22:1a58a518435c 244
embeddedartists 22:1a58a518435c 245 /******************************************************************************
embeddedartists 22:1a58a518435c 246 * Public Functions
embeddedartists 22:1a58a518435c 247 *****************************************************************************/
embeddedartists 22:1a58a518435c 248
embeddedartists 22:1a58a518435c 249 BiosTouch::TouchError BiosTouch::init()
embeddedartists 22:1a58a518435c 250 {
embeddedartists 22:1a58a518435c 251 TouchError result = TouchError_Ok;
embeddedartists 22:1a58a518435c 252 if (!_initialized) {
embeddedartists 22:1a58a518435c 253 do {
embeddedartists 22:1a58a518435c 254 if (BiosLoader::instance().params(&_bios, &_biosData) != DMBoard::Ok) {
embeddedartists 22:1a58a518435c 255 result = TouchError_ConfigError;
embeddedartists 22:1a58a518435c 256 break;
embeddedartists 22:1a58a518435c 257 }
embeddedartists 22:1a58a518435c 258
embeddedartists 22:1a58a518435c 259 result = (TouchError)_bios->touchInformation(_biosData, &_supportsTouch, &_supportsTouchCalibration, &_touchIsResistive, &_touchNumFingers);
embeddedartists 22:1a58a518435c 260 if (result != TouchError_Ok) {
embeddedartists 22:1a58a518435c 261 break;
embeddedartists 22:1a58a518435c 262 }
embeddedartists 22:1a58a518435c 263 _haveInfo = true;
embeddedartists 22:1a58a518435c 264
embeddedartists 22:1a58a518435c 265 // is it supported at all?
embeddedartists 22:1a58a518435c 266 if (!_supportsTouch) {
embeddedartists 22:1a58a518435c 267 result = TouchError_TouchNotSupported;
embeddedartists 22:1a58a518435c 268 break;
embeddedartists 22:1a58a518435c 269 }
embeddedartists 22:1a58a518435c 270
embeddedartists 26:a65fbb4bde5c 271 NVIC_DisableIRQ(I2C0_IRQn);
embeddedartists 26:a65fbb4bde5c 272 NVIC_SetVector(I2C0_IRQn, (uint32_t)touch_i2c0_irq_handler);
embeddedartists 26:a65fbb4bde5c 273 _handler = theTouchHandler = new TouchHandler(_bios, _biosData, _touchNumFingers);
embeddedartists 26:a65fbb4bde5c 274 NVIC_EnableIRQ(I2C0_IRQn);
embeddedartists 22:1a58a518435c 275
embeddedartists 26:a65fbb4bde5c 276 result = (TouchError)_bios->touchInit(_biosData, touchIrqEnabler, (uint32_t)_handler, touchNewData, (uint32_t)_handler);
embeddedartists 22:1a58a518435c 277 if (result != TouchError_Ok) {
embeddedartists 22:1a58a518435c 278 break;
embeddedartists 22:1a58a518435c 279 }
embeddedartists 22:1a58a518435c 280
embeddedartists 22:1a58a518435c 281 result = (TouchError)_bios->touchPowerUp(_biosData);
embeddedartists 22:1a58a518435c 282 if (result != TouchError_Ok) {
embeddedartists 22:1a58a518435c 283 break;
embeddedartists 22:1a58a518435c 284 }
embeddedartists 22:1a58a518435c 285
embeddedartists 22:1a58a518435c 286 _handlerThread = new Thread(touchTask, _handler);
embeddedartists 22:1a58a518435c 287
embeddedartists 22:1a58a518435c 288 _initialized = true;
embeddedartists 22:1a58a518435c 289 } while(0);
embeddedartists 22:1a58a518435c 290
embeddedartists 22:1a58a518435c 291 if (!_initialized) {
embeddedartists 22:1a58a518435c 292 if (_handler != NULL) {
embeddedartists 22:1a58a518435c 293 delete _handler;
embeddedartists 22:1a58a518435c 294 _handler = NULL;
embeddedartists 26:a65fbb4bde5c 295 theTouchHandler = NULL;
embeddedartists 22:1a58a518435c 296 }
embeddedartists 22:1a58a518435c 297 }
embeddedartists 22:1a58a518435c 298 }
embeddedartists 22:1a58a518435c 299 return result;
embeddedartists 22:1a58a518435c 300 }
embeddedartists 22:1a58a518435c 301
embeddedartists 22:1a58a518435c 302 BiosTouch::TouchError BiosTouch::read(touch_coordinate_t &coord)
embeddedartists 22:1a58a518435c 303 {
embeddedartists 22:1a58a518435c 304 TouchError err = TouchError_Ok;
embeddedartists 22:1a58a518435c 305 if (!_initialized) {
embeddedartists 22:1a58a518435c 306 err = TouchError_NoInit;
embeddedartists 22:1a58a518435c 307 } else {
embeddedartists 22:1a58a518435c 308 err = _handler->read(&coord, 1);
embeddedartists 22:1a58a518435c 309 }
embeddedartists 22:1a58a518435c 310 return err;
embeddedartists 22:1a58a518435c 311 }
embeddedartists 22:1a58a518435c 312
embeddedartists 22:1a58a518435c 313 BiosTouch::TouchError BiosTouch::read(touch_coordinate_t* coord, int num)
embeddedartists 22:1a58a518435c 314 {
embeddedartists 22:1a58a518435c 315 TouchError err = TouchError_Ok;
embeddedartists 22:1a58a518435c 316 if (!_initialized) {
embeddedartists 22:1a58a518435c 317 err = TouchError_NoInit;
embeddedartists 22:1a58a518435c 318 } else {
embeddedartists 22:1a58a518435c 319 err = _handler->read(coord, num);
embeddedartists 22:1a58a518435c 320 }
embeddedartists 22:1a58a518435c 321 return err;
embeddedartists 22:1a58a518435c 322 }
embeddedartists 22:1a58a518435c 323
embeddedartists 22:1a58a518435c 324 BiosTouch::TouchError BiosTouch::info(bool* resistive, int* maxPoints, bool* calibrated)
embeddedartists 22:1a58a518435c 325 {
embeddedartists 22:1a58a518435c 326 TouchError err = TouchError_Ok;
embeddedartists 22:1a58a518435c 327 if (!_haveInfo) {
embeddedartists 22:1a58a518435c 328 err = TouchError_NoInit;
embeddedartists 22:1a58a518435c 329 } else {
embeddedartists 22:1a58a518435c 330 *resistive = _touchIsResistive;
embeddedartists 22:1a58a518435c 331 *maxPoints = _touchNumFingers;
embeddedartists 22:1a58a518435c 332 *calibrated = _supportsTouchCalibration;
embeddedartists 22:1a58a518435c 333 }
embeddedartists 22:1a58a518435c 334 return err;
embeddedartists 22:1a58a518435c 335 }
embeddedartists 22:1a58a518435c 336
embeddedartists 22:1a58a518435c 337 bool BiosTouch::isTouchSupported()
embeddedartists 22:1a58a518435c 338 {
embeddedartists 22:1a58a518435c 339 #if defined(DM_BOARD_USE_TOUCH)
embeddedartists 22:1a58a518435c 340 if (_haveInfo) {
embeddedartists 22:1a58a518435c 341 return _supportsTouch;
embeddedartists 22:1a58a518435c 342 }
embeddedartists 22:1a58a518435c 343 #endif
embeddedartists 22:1a58a518435c 344 return false;
embeddedartists 22:1a58a518435c 345 }
embeddedartists 22:1a58a518435c 346
embeddedartists 22:1a58a518435c 347 BiosTouch::TouchError BiosTouch::calibrateStart()
embeddedartists 22:1a58a518435c 348 {
embeddedartists 22:1a58a518435c 349 TouchError err = TouchError_Ok;
embeddedartists 22:1a58a518435c 350 if (!_initialized) {
embeddedartists 22:1a58a518435c 351 err = TouchError_NoInit;
embeddedartists 22:1a58a518435c 352 } else {
embeddedartists 22:1a58a518435c 353 err = (TouchError)_bios->touchCalibrateStart(_biosData);
embeddedartists 22:1a58a518435c 354 }
embeddedartists 22:1a58a518435c 355 return err;
embeddedartists 22:1a58a518435c 356 }
embeddedartists 22:1a58a518435c 357
embeddedartists 22:1a58a518435c 358 BiosTouch::TouchError BiosTouch::getNextCalibratePoint(uint16_t* x, uint16_t* y, bool* last)
embeddedartists 22:1a58a518435c 359 {
embeddedartists 22:1a58a518435c 360 TouchError err = TouchError_Ok;
embeddedartists 22:1a58a518435c 361 if (!_initialized) {
embeddedartists 22:1a58a518435c 362 err = TouchError_NoInit;
embeddedartists 22:1a58a518435c 363 } else {
embeddedartists 22:1a58a518435c 364 err = (TouchError)_bios->touchGetNextCalibPoint(_biosData, x, y, last);
embeddedartists 22:1a58a518435c 365 }
embeddedartists 22:1a58a518435c 366 return err;
embeddedartists 22:1a58a518435c 367 }
embeddedartists 22:1a58a518435c 368
embeddedartists 22:1a58a518435c 369 BiosTouch::TouchError BiosTouch::waitForCalibratePoint(bool* morePoints, uint32_t timeout)
embeddedartists 22:1a58a518435c 370 {
embeddedartists 22:1a58a518435c 371 TouchError err = TouchError_Ok;
embeddedartists 22:1a58a518435c 372 if (!_initialized) {
embeddedartists 22:1a58a518435c 373 err = TouchError_NoInit;
embeddedartists 22:1a58a518435c 374 } else {
embeddedartists 22:1a58a518435c 375 err = (TouchError)_bios->touchWaitForCalibratePoint(_biosData, morePoints, timeout);
embeddedartists 22:1a58a518435c 376 }
embeddedartists 22:1a58a518435c 377 return err;
embeddedartists 22:1a58a518435c 378 }
embeddedartists 22:1a58a518435c 379
embeddedartists 22:1a58a518435c 380 FunctionPointer* BiosTouch::setListener(FunctionPointer* listener)
embeddedartists 22:1a58a518435c 381 {
embeddedartists 22:1a58a518435c 382 if (_initialized) {
embeddedartists 22:1a58a518435c 383 return _handler->setListener(listener);
embeddedartists 22:1a58a518435c 384 }
embeddedartists 22:1a58a518435c 385 return NULL;
embeddedartists 22:1a58a518435c 386 }