1 /* |
|
2 * Copyright (c) 2004-2007 Nokia Corporation and/or its subsidiary(-ies). |
|
3 * All rights reserved. |
|
4 * This component and the accompanying materials are made available |
|
5 * under the terms of "Eclipse Public License v1.0" |
|
6 * which accompanies this distribution, and is available |
|
7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
|
8 * |
|
9 * Initial Contributors: |
|
10 * Nokia Corporation - initial contribution. |
|
11 * |
|
12 * Contributors: |
|
13 * |
|
14 * Description: Generic hid implementation |
|
15 * |
|
16 */ |
|
17 |
|
18 #include <e32std.h> |
|
19 |
|
20 #include "debug.h" |
|
21 #include "hidgeneric.h" |
|
22 #include "hidreportroot.h" |
|
23 #include "hidparser.h" |
|
24 #include "hiddriveritem.h" |
|
25 #include "hidconnectioninfo.h" |
|
26 |
|
27 // ======== MEMBER FUNCTIONS ======== |
|
28 |
|
29 // --------------------------------------------------------------------------- |
|
30 // NewLC |
|
31 // --------------------------------------------------------------------------- |
|
32 // |
|
33 EXPORT_C CGenericHid* CGenericHid::NewLC(MTransportLayer* aTransportLayer) |
|
34 { |
|
35 TRACE_INFO((_L("[HID]\tCGenericHid::NewLC(0x%08x)"), aTransportLayer)); |
|
36 CGenericHid* self = new (ELeave) CGenericHid(aTransportLayer); |
|
37 CleanupStack::PushL(self); |
|
38 self->ConstructL(); |
|
39 return self; |
|
40 } |
|
41 |
|
42 // --------------------------------------------------------------------------- |
|
43 // NewL |
|
44 // --------------------------------------------------------------------------- |
|
45 // |
|
46 EXPORT_C CGenericHid* CGenericHid::NewL(MTransportLayer* aTransportLayer) |
|
47 { |
|
48 TRACE_INFO((_L("[HID]\tCGenericHid::NewL(0x%08x)"), aTransportLayer)); |
|
49 CGenericHid* self = NewLC(aTransportLayer); |
|
50 CleanupStack::Pop(); |
|
51 return self; |
|
52 } |
|
53 |
|
54 // --------------------------------------------------------------------------- |
|
55 // ConstructL() |
|
56 // --------------------------------------------------------------------------- |
|
57 // |
|
58 void CGenericHid::ConstructL() |
|
59 { |
|
60 TRACE_INFO(_L("[HID]\tCGenericHid::ConstructL()")); |
|
61 TRACE_INFO(_L("[HID]\tCGenericHid::ConstructL(): Creating Parser...")); |
|
62 iParser = CParser::NewL(); |
|
63 iInputHandlingReg = CHidInputDataHandlingReg::NewL(); |
|
64 } |
|
65 |
|
66 // --------------------------------------------------------------------------- |
|
67 // CGenericHid() |
|
68 // --------------------------------------------------------------------------- |
|
69 // |
|
70 CGenericHid::CGenericHid(MTransportLayer* aTransportLayer) : |
|
71 iDriverList(_FOFF(CDriverListItem, iSlink)), |
|
72 iTransportLayer(aTransportLayer) |
|
73 { |
|
74 } |
|
75 |
|
76 // --------------------------------------------------------------------------- |
|
77 // Destructor |
|
78 // --------------------------------------------------------------------------- |
|
79 // |
|
80 CGenericHid::~CGenericHid() |
|
81 { |
|
82 TRACE_FUNC_ENTRY |
|
83 RemoveDrivers(); |
|
84 iConnectionInfo.ResetAndDestroy(); |
|
85 iConnectionInfo.Close(); |
|
86 delete iInputHandlingReg; |
|
87 delete iParser; |
|
88 REComSession::FinalClose(); |
|
89 TRACE_FUNC_EXIT |
|
90 } |
|
91 |
|
92 // --------------------------------------------------------------------------- |
|
93 // From MDriverAccess |
|
94 // CountryCodeL |
|
95 // --------------------------------------------------------------------------- |
|
96 // |
|
97 TUint CGenericHid::CountryCodeL(TInt aConnID) |
|
98 { |
|
99 // Pass the request through to the transport layer. |
|
100 return (iTransportLayer->CountryCodeL(aConnID)); |
|
101 } |
|
102 |
|
103 // --------------------------------------------------------------------------- |
|
104 // From MDriverAccess |
|
105 // VendorIdL |
|
106 // --------------------------------------------------------------------------- |
|
107 // |
|
108 TUint CGenericHid::VendorIdL(TInt aConnID) |
|
109 { |
|
110 // Pass the request through to the transport layer. |
|
111 return (iTransportLayer->VendorIdL(aConnID)); |
|
112 } |
|
113 |
|
114 // --------------------------------------------------------------------------- |
|
115 // From MDriverAccess |
|
116 // ProductIdL() |
|
117 // --------------------------------------------------------------------------- |
|
118 // |
|
119 TUint CGenericHid::ProductIdL(TInt aConnID) |
|
120 { |
|
121 // Pass the request through to the transport layer. |
|
122 return iTransportLayer->ProductIdL(aConnID); |
|
123 } |
|
124 |
|
125 // --------------------------------------------------------------------------- |
|
126 // From MDriverAccess |
|
127 // SetProtocol |
|
128 // --------------------------------------------------------------------------- |
|
129 // |
|
130 void CGenericHid::SetProtocolL(TInt aConnectionId, TUint16 aInterface, |
|
131 MDriverAccess::TProtocols aProtocol, |
|
132 CHidDriver* aDriver) |
|
133 { |
|
134 iTransportLayer->SetProtocolL(aConnectionId, static_cast<TUint16>(aProtocol), |
|
135 aInterface); |
|
136 CConnectionInfo* conninfo = SeekConnectionInfo( aConnectionId ); |
|
137 if ( conninfo ) |
|
138 { |
|
139 conninfo->SetLastCommandHandler(aDriver); |
|
140 } |
|
141 } |
|
142 |
|
143 // --------------------------------------------------------------------------- |
|
144 // From MDriverAccess |
|
145 // GetProtocol |
|
146 // --------------------------------------------------------------------------- |
|
147 // |
|
148 void CGenericHid::GetProtocolL(TInt aConnectionId,TUint16 aInterface) |
|
149 { |
|
150 iTransportLayer->GetProtocolL(aConnectionId, aInterface); |
|
151 } |
|
152 |
|
153 // --------------------------------------------------------------------------- |
|
154 // From MDriverAccess |
|
155 // GetReport |
|
156 // --------------------------------------------------------------------------- |
|
157 // |
|
158 void CGenericHid::GetReportL(TInt aConnectionId, |
|
159 TUint8 aReportId, TUint16 aInterface, TUint16 aLength) |
|
160 { |
|
161 iTransportLayer->GetReportL(aConnectionId, MDriverAccess::EInput, aReportId, |
|
162 aInterface, aLength); |
|
163 } |
|
164 |
|
165 // --------------------------------------------------------------------------- |
|
166 // From MDriverAccess |
|
167 // SetReport() |
|
168 // --------------------------------------------------------------------------- |
|
169 // |
|
170 void CGenericHid::SetReportL(TInt aConnectionId, TUint8 aReportId, |
|
171 MDriverAccess::TReportType aReportType, const TDesC8& aPayload, |
|
172 TUint16 aInterface, CHidDriver* aDriver) |
|
173 { |
|
174 iTransportLayer->SetReportL(aConnectionId, static_cast<TUint8>(aReportType), |
|
175 aReportId, aInterface, aPayload); |
|
176 CConnectionInfo* conninfo = SeekConnectionInfo( aConnectionId ); |
|
177 if ( conninfo ) |
|
178 { |
|
179 conninfo->SetLastCommandHandler(aDriver); |
|
180 } |
|
181 } |
|
182 |
|
183 // --------------------------------------------------------------------------- |
|
184 // From MDriverAccess |
|
185 // DataOut() |
|
186 // --------------------------------------------------------------------------- |
|
187 // |
|
188 void CGenericHid::DataOutL(TInt aConnectionId, TUint8 aReportId, |
|
189 const TDesC8& aPayload, |
|
190 TUint16 aInterface) |
|
191 { |
|
192 iTransportLayer->DataOutL(aConnectionId, aReportId, aInterface, aPayload); |
|
193 } |
|
194 |
|
195 |
|
196 // --------------------------------------------------------------------------- |
|
197 // From MDriverAccess |
|
198 // GetIdle() |
|
199 // --------------------------------------------------------------------------- |
|
200 // |
|
201 void CGenericHid::GetIdleL(TInt aConnectionId, TUint8 aReportId, |
|
202 TUint16 aInterface ) |
|
203 { |
|
204 iTransportLayer->GetIdleL(aConnectionId, aReportId, aInterface); |
|
205 } |
|
206 |
|
207 // --------------------------------------------------------------------------- |
|
208 // From MDriverAccess |
|
209 // SetIdle() |
|
210 // --------------------------------------------------------------------------- |
|
211 // |
|
212 void CGenericHid::SetIdleL(TInt aConnectionId, TUint8 aDuration, |
|
213 TUint8 aReportId, TUint16 aInterface, CHidDriver* aDriver) |
|
214 { |
|
215 iTransportLayer->SetIdleL(aConnectionId, aDuration, aReportId, aInterface); |
|
216 CConnectionInfo* conninfo = SeekConnectionInfo( aConnectionId ); |
|
217 if ( conninfo ) |
|
218 { |
|
219 conninfo->SetLastCommandHandler(aDriver); |
|
220 } |
|
221 |
|
222 } |
|
223 |
|
224 // --------------------------------------------------------------------------- |
|
225 // RemoveDrivers() |
|
226 // --------------------------------------------------------------------------- |
|
227 // |
|
228 void CGenericHid::RemoveDrivers() |
|
229 { |
|
230 TRACE_FUNC |
|
231 // Driver instances |
|
232 CDriverListItem* driverItem; |
|
233 while ( !iDriverList.IsEmpty() ) |
|
234 { |
|
235 driverItem = iDriverList.Last(); |
|
236 iDriverList.Remove( *driverItem ); |
|
237 delete driverItem; |
|
238 } |
|
239 } |
|
240 |
|
241 // --------------------------------------------------------------------------- |
|
242 // From CHidTransport |
|
243 // Disconnected() |
|
244 // --------------------------------------------------------------------------- |
|
245 // |
|
246 TInt CGenericHid::Disconnected( TInt aConnectionId ) |
|
247 { |
|
248 TRACE_FUNC_ENTRY |
|
249 TInt retVal = KErrNone; |
|
250 |
|
251 TSglQueIter<CDriverListItem> driverIter( iDriverList ); |
|
252 driverIter.SetToFirst(); |
|
253 |
|
254 CDriverListItem* driverItem = driverIter; |
|
255 while ( driverItem ) |
|
256 { |
|
257 driverIter++; |
|
258 if ( driverItem->ConnectionId() == aConnectionId ) |
|
259 { |
|
260 TRACE_INFO(_L("[HID]\tCGenericHid::Disconnected driver")); |
|
261 if (driverItem->Driver()) |
|
262 { |
|
263 driverItem->Driver()->Disconnected(0); |
|
264 } |
|
265 // Remove it from the list of driver instances |
|
266 |
|
267 iDriverList.Remove(*driverItem); |
|
268 delete driverItem; |
|
269 driverItem = NULL; |
|
270 retVal = KErrNone; |
|
271 } |
|
272 driverItem = driverIter; |
|
273 |
|
274 TRACE_INFO(_L("[HID]\tCGenericHid::Disconnected next driver")); |
|
275 } |
|
276 TRACE_INFO(_L("[HID]\tCGenericHid::Disconnected remove connection info")); |
|
277 TInt count = iConnectionInfo.Count(); |
|
278 for (TInt i = count-1 ; i>=0; i--) |
|
279 { |
|
280 TRACE_INFO((_L("[HID]\tCGenericHid::Disconnected remove connection info %d"),i)); |
|
281 CConnectionInfo* conninfo = iConnectionInfo[i]; |
|
282 TRACE_INFO((_L("[HID]\tCGenericHid::Disconnected remove connection info %d"),i)); |
|
283 if ( conninfo->ConnectionID() == aConnectionId ) |
|
284 { |
|
285 iConnectionInfo.Remove(i); |
|
286 delete conninfo; |
|
287 TRACE_INFO((_L("[HID]\tCGenericHid::Disconnected remove connection info %d removed"),i)); |
|
288 } |
|
289 } |
|
290 TRACE_FUNC_EXIT |
|
291 return retVal; |
|
292 } |
|
293 |
|
294 // --------------------------------------------------------------------------- |
|
295 // From CHidTransport |
|
296 // ConnectedL |
|
297 // HID device has been connected. Attempt to find a driver that can |
|
298 // handle reports in the format specified by the report descriptor. |
|
299 // --------------------------------------------------------------------------- |
|
300 // |
|
301 TInt CGenericHid::ConnectedL( TInt aConnectionId, const TDesC8& aDescriptor ) |
|
302 { |
|
303 TRACE_INFO((_L("[HID]\tCGenericHid::ConnectedL(%d, ...)"), aConnectionId)) |
|
304 |
|
305 // Place the parsed report descriptor in the driver list item: |
|
306 |
|
307 TBool found = EFalse; |
|
308 CConnectionInfo* conninfo = SeekConnectionInfo( aConnectionId ); |
|
309 if ( conninfo ) |
|
310 { |
|
311 return KErrInUse; |
|
312 } |
|
313 |
|
314 CReportRoot* reportRoot = iParser->ParseL( aDescriptor ); |
|
315 CleanupStack::PushL(reportRoot); |
|
316 |
|
317 TRACE_INFO(_L("[HID]\tCGenericHid::ConnectedL: evaluate driver array")); |
|
318 // Implementation info array |
|
319 RImplInfoPtrArray implInfoArray; |
|
320 REComSession::ListImplementationsL( KHidDriverPluginInterfaceUid, implInfoArray ); |
|
321 CleanupClosePushL(implInfoArray); |
|
322 |
|
323 TRACE_INFO((_L("[HID]\tCGenericHid::ConnectedL: %d implementations found"), implInfoArray.Count())); |
|
324 TInt index = 0; |
|
325 TInt retVal = KErrHidNoDriver; |
|
326 TInt supportedfields = 0; |
|
327 CHidDriver* driver = NULL; |
|
328 for ( index = 0; index < implInfoArray.Count(); index++ ) |
|
329 { |
|
330 // parse implementation UID |
|
331 CImplementationInformation* info = implInfoArray[ index ]; |
|
332 TUid implUid = info->ImplementationUid(); |
|
333 TRACE_INFO((_L("[HID]\tCGenericHid::ConnectedL: load plugin 0x%08x"),implUid )); |
|
334 // load driver |
|
335 // Trap so other drivers will be enumerated even if |
|
336 // this fails: |
|
337 |
|
338 TRAPD(retTrap, driver = CHidDriver::NewL( implUid, this )); |
|
339 if ( retTrap != KErrNone) |
|
340 { |
|
341 continue; |
|
342 } |
|
343 CleanupStack::PushL(driver); |
|
344 TRACE_INFO((_L("[HID]\tCGenericHid::ConnectedL: init plugin 0x%08x"),implUid )); |
|
345 driver->InitialiseL( aConnectionId ); |
|
346 TInt ret = driver->CanHandleReportL( reportRoot ); |
|
347 if (ret == KErrNone) |
|
348 { |
|
349 TRACE_INFO(_L("[HID]\tCGenericHid::ConnectedL(): found driver")); |
|
350 |
|
351 // Make a new driver list item: |
|
352 CDriverListItem* driverItem = new ( ELeave ) CDriverListItem( aConnectionId ); |
|
353 CleanupStack::PushL( driverItem ); |
|
354 driver->SetInputHandlingReg( iInputHandlingReg ); |
|
355 supportedfields += driver->SupportedFieldCount(); |
|
356 iDriverList.AddLast( *driverItem ); |
|
357 CleanupStack::Pop( driverItem ); |
|
358 driverItem->SetDriver( driver ); |
|
359 CleanupStack::Pop( driver ); |
|
360 retVal = KErrNone; |
|
361 found = ETrue; |
|
362 } |
|
363 else |
|
364 { |
|
365 CleanupStack::PopAndDestroy( driver ); |
|
366 } |
|
367 } |
|
368 TRACE_INFO((_L("[HID]\tCGenericHid::ConnectedL Partial supported hid device supported %d in report %d&"),supportedfields,iParser->FieldCount())); |
|
369 if (supportedfields < iParser->FieldCount() && found ) |
|
370 { |
|
371 TRACE_INFO(_L("[HID]\tCGenericHid::ConnectedL Partial supported hid device")); |
|
372 } |
|
373 implInfoArray.ResetAndDestroy(); |
|
374 CleanupStack::PopAndDestroy(); // info |
|
375 if ( found ) |
|
376 { |
|
377 TRACE_INFO(_L("[HID]\tCGenericHid::ConnectedL append connection info")); |
|
378 conninfo = CConnectionInfo::NewL(aConnectionId, reportRoot); |
|
379 CleanupStack::Pop(reportRoot); // ownership transfered to conninfo |
|
380 CleanupStack::PushL(conninfo); |
|
381 iConnectionInfo.AppendL(conninfo); |
|
382 CleanupStack::Pop(conninfo); |
|
383 } |
|
384 else |
|
385 { |
|
386 CleanupStack::PopAndDestroy(reportRoot); |
|
387 } |
|
388 |
|
389 return retVal; |
|
390 } |
|
391 |
|
392 // --------------------------------------------------------------------------- |
|
393 // From CHidTransport |
|
394 // DataIn |
|
395 // Determine which driver is handling this connection ID and pass the payload |
|
396 // reference to it |
|
397 // --------------------------------------------------------------------------- |
|
398 // |
|
399 TInt CGenericHid::DataIn(TInt aConnectionId, |
|
400 CHidTransport::THidChannelType aChannel, const TDesC8& aPayload) |
|
401 { |
|
402 TRACE_FUNC_ENTRY |
|
403 TInt retVal = KErrHidNoDriver; |
|
404 TInt ret = KErrNone; |
|
405 |
|
406 TSglQueIter<CDriverListItem> driverIter( iDriverList ); |
|
407 driverIter.SetToFirst(); |
|
408 |
|
409 CDriverListItem* item = driverIter; |
|
410 TBool found = EFalse; |
|
411 while ( item ) |
|
412 { |
|
413 if ( item->ConnectionId() == aConnectionId ) |
|
414 { |
|
415 ret = item->Driver()->DataIn( aChannel, aPayload ); |
|
416 if (ret == KErrNone) |
|
417 { |
|
418 TRACE_INFO(_L("[HID]\tCGenericHid::DataIn command handled")); |
|
419 found = ETrue; |
|
420 retVal = KErrNone; |
|
421 } |
|
422 } |
|
423 TRACE_INFO(_L("[HID]\tCGenericHid::DataIn next driver")); |
|
424 driverIter++; |
|
425 item = driverIter; |
|
426 } |
|
427 if ( !found && aChannel == CHidTransport::EHidChannelCtrl ) |
|
428 { |
|
429 retVal = KErrNone; |
|
430 } |
|
431 iInputHandlingReg->Reset(); |
|
432 TRACE_FUNC_EXIT |
|
433 return retVal; |
|
434 } |
|
435 |
|
436 |
|
437 // --------------------------------------------------------------------------- |
|
438 // ReportDescriptor |
|
439 // Provides access to the parsed results to the factory |
|
440 // --------------------------------------------------------------------------- |
|
441 // |
|
442 CReportRoot* CGenericHid::ReportDescriptor(TInt aConnectionId) |
|
443 { |
|
444 CConnectionInfo* conninfo = SeekConnectionInfo( aConnectionId ); |
|
445 if ( conninfo ) |
|
446 { |
|
447 return conninfo->ReportRoot(); |
|
448 } |
|
449 return NULL; |
|
450 } |
|
451 |
|
452 // --------------------------------------------------------------------------- |
|
453 // From CHidTransport |
|
454 // DriverActive() |
|
455 // --------------------------------------------------------------------------- |
|
456 // |
|
457 TInt CGenericHid::DriverActive(TInt aConnectionId, |
|
458 CHidTransport::TDriverState aActive) |
|
459 { |
|
460 TRACE_FUNC_ENTRY |
|
461 TInt retVal = KErrHidNoDriver; |
|
462 // Find the driver handling the connection and stop it |
|
463 TSglQueIter<CDriverListItem> driverIter( iDriverList ); |
|
464 driverIter.SetToFirst(); |
|
465 CDriverListItem* item = driverIter; |
|
466 |
|
467 while ( item ) |
|
468 { |
|
469 TRACE_INFO(_L("[HID]\tCGenericHid::DriverActive")); |
|
470 if ( item->ConnectionId() == aConnectionId && item->Driver() ) |
|
471 { |
|
472 TRACE_INFO(_L("[HID]\tCGenericHid::DriverActive driver found")); |
|
473 if ( aActive == CHidTransport::EActive ) |
|
474 { |
|
475 TRAP(retVal, item->Driver()->StartL( aConnectionId )); |
|
476 if (retVal != KErrNone) |
|
477 { |
|
478 break; |
|
479 } |
|
480 } |
|
481 else if ( aActive == CHidTransport::ESuspend) |
|
482 { |
|
483 item->Driver()->Stop(); |
|
484 retVal = KErrNone; |
|
485 } |
|
486 } |
|
487 driverIter++; |
|
488 item = driverIter; |
|
489 } |
|
490 TRACE_FUNC_EXIT |
|
491 return retVal; |
|
492 } |
|
493 |
|
494 // --------------------------------------------------------------------------- |
|
495 // CommandResult() |
|
496 // --------------------------------------------------------------------------- |
|
497 // |
|
498 void CGenericHid::CommandResult(TInt aConnectionId, TInt aCmdAck) |
|
499 { |
|
500 // Get the driver handling this connection |
|
501 CConnectionInfo* conninfo = SeekConnectionInfo( aConnectionId ); |
|
502 if ( conninfo ) |
|
503 { |
|
504 CHidDriver* hiddriver = conninfo->ReturnLastCommandHandler(); |
|
505 if (hiddriver) |
|
506 { |
|
507 hiddriver->CommandResult(aCmdAck); |
|
508 } |
|
509 } |
|
510 } |
|
511 |
|
512 // --------------------------------------------------------------------------- |
|
513 // SeekConnectionInfo() |
|
514 // --------------------------------------------------------------------------- |
|
515 // |
|
516 CConnectionInfo* CGenericHid::SeekConnectionInfo(TInt aConnectionId) |
|
517 { |
|
518 TRACE_FUNC |
|
519 CConnectionInfo* conninfo = NULL; |
|
520 TInt count = iConnectionInfo.Count(); |
|
521 TRACE_INFO((_L("[HID]\tCGenericHid::SeekConnectionInfo count %d"), count)); |
|
522 for (TInt i = 0 ; i < count; i++) |
|
523 { |
|
524 conninfo = iConnectionInfo[i]; |
|
525 TRACE_INFO((_L("[HID]\tCGenericHid::SeekConnectionInfo connection info check %d %d"),aConnectionId, conninfo->ConnectionID())); |
|
526 if ( conninfo->ConnectionID() == aConnectionId) |
|
527 { |
|
528 TRACE_INFO(_L("[HID]\tCGenericHid::SeekConnectionInfo connection info found")); |
|
529 return conninfo; |
|
530 } |
|
531 } |
|
532 return NULL; |
|
533 } |
|