35
|
1 |
/*
|
|
2 |
* Copyright (c) 2007 - 2010 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: Takes control of device&vendor-specific control messages over EP0
|
|
15 |
*
|
|
16 |
*/
|
|
17 |
|
|
18 |
|
|
19 |
#include <usbman.h>
|
|
20 |
|
|
21 |
#include "cusbdevcon.h"
|
|
22 |
#include "cusbstatewatcher.h"
|
|
23 |
#include "crequestshandler.h"
|
|
24 |
#include "cstatemachine.h"
|
|
25 |
#include "debug.h"
|
|
26 |
|
|
27 |
// LITERALS
|
|
28 |
_LIT( KUsbDevConName, "UsbDevCon" );
|
|
29 |
|
|
30 |
// ---------------------------------------------------------------------------
|
|
31 |
// Two-phase construction
|
|
32 |
// ---------------------------------------------------------------------------
|
|
33 |
//
|
|
34 |
CUsbDevCon* CUsbDevCon::NewLC()
|
|
35 |
{
|
|
36 |
FLOG( _L( "[USBDEVCON]\tCUsbDevCon::NewLC" ) );
|
|
37 |
|
|
38 |
CUsbDevCon* self = new (ELeave) CUsbDevCon();
|
|
39 |
CleanupStack::PushL(self);
|
|
40 |
self->ConstructL();
|
|
41 |
return self;
|
|
42 |
}
|
|
43 |
|
|
44 |
// ---------------------------------------------------------------------------
|
|
45 |
// Two-phase construction
|
|
46 |
// ---------------------------------------------------------------------------
|
|
47 |
//
|
|
48 |
CUsbDevCon* CUsbDevCon::NewL()
|
|
49 |
{
|
|
50 |
FLOG( _L( "[USBDEVCON]\tCUsbDevCon::NewL" ) );
|
|
51 |
|
|
52 |
CUsbDevCon* self = CUsbDevCon::NewLC();
|
|
53 |
CleanupStack::Pop(self);
|
|
54 |
return self;
|
|
55 |
}
|
|
56 |
|
|
57 |
// ---------------------------------------------------------------------------
|
|
58 |
// Two-phase construction
|
|
59 |
// ---------------------------------------------------------------------------
|
|
60 |
//
|
|
61 |
void CUsbDevCon::ConstructL()
|
|
62 |
{
|
|
63 |
|
|
64 |
FLOG( _L( "[USBDEVCON]\tCUsbDevCon::ConstructL" ) );
|
|
65 |
|
|
66 |
// usbc
|
|
67 |
User::LeaveIfError(iLdd.Open(0));
|
|
68 |
FLOG( _L( "[USBDEVCON]\tCUsbDevCon::ConstructL RDevUsbcClient opened OK" ) );
|
|
69 |
|
|
70 |
// usb manager
|
|
71 |
User::LeaveIfError(iUsbManager.Connect());
|
|
72 |
FLOG( _L( "[USBDEVCON]\tCUsbDevCon::ConstructL RUsb connected OK" ) );
|
|
73 |
|
|
74 |
// usb watcher
|
|
75 |
User::LeaveIfError(iUsbWatcher.Connect());
|
|
76 |
FLOG( _L( "[USBDEVCON]\tCUsbDevCon::ConstructL RUsbWatcher connected OK" ) );
|
|
77 |
|
|
78 |
// device state watcher
|
|
79 |
iUsbStateWatcher = CUsbStateWatcher::NewL(*this, iLdd);
|
|
80 |
|
|
81 |
// Requests handler
|
|
82 |
iRequestsHandler = CRequestsHandler::NewL(iLdd, iUsbWatcher, iUsbManager);
|
|
83 |
|
|
84 |
// state machine
|
|
85 |
iStateMachine = CStateMachine::NewL(*iRequestsHandler, iLdd);
|
|
86 |
|
|
87 |
User::LeaveIfError(iShutdownTimer.CreateLocal());
|
|
88 |
|
|
89 |
// get usb state, and act accordingly to it
|
|
90 |
TUsbcDeviceState usbcstate(EUsbcDeviceStateUndefined);
|
|
91 |
iLdd.DeviceStatus(usbcstate);
|
|
92 |
|
|
93 |
FTRACE(FPrint(
|
|
94 |
_L("[USBDEVCON]\tCUsbDevCon::ConstructL: Usbc state = %d" ),usbcstate));
|
|
95 |
|
|
96 |
ActAccordinglyToUsbStateL(usbcstate);
|
|
97 |
|
|
98 |
}
|
|
99 |
|
|
100 |
// ---------------------------------------------------------------------------
|
|
101 |
// Default construction
|
|
102 |
// ---------------------------------------------------------------------------
|
|
103 |
//
|
|
104 |
CUsbDevCon::CUsbDevCon() : CActive(EPriorityStandard),
|
|
105 |
iUsbStateWatcher(0),
|
|
106 |
iStateMachine (0),
|
|
107 |
iRequestsHandler(0),
|
|
108 |
iPrevUsbState(EUsbcDeviceStateUndefined)
|
|
109 |
{
|
|
110 |
CActiveScheduler::Add(this);
|
|
111 |
}
|
|
112 |
|
|
113 |
// ---------------------------------------------------------------------------
|
|
114 |
// Destruction
|
|
115 |
// ---------------------------------------------------------------------------
|
|
116 |
//
|
|
117 |
CUsbDevCon::~CUsbDevCon()
|
|
118 |
{
|
|
119 |
FLOG( _L( "[USBDEVCON]\tCUsbDevCon::~CUsbDevCon" ) );
|
|
120 |
|
|
121 |
Cancel();
|
|
122 |
|
|
123 |
FLOG( _L( "[USBDEVCON]\tCUsbDevCon::~CUsbDevCon Cancel" ) );
|
|
124 |
|
|
125 |
delete iStateMachine;
|
|
126 |
|
|
127 |
FLOG( _L( "[USBDEVCON]\tCUsbDevCon::~CUsbDevCon StateMachine" ) );
|
|
128 |
|
|
129 |
delete iRequestsHandler;
|
|
130 |
|
|
131 |
FLOG( _L( "[USBDEVCON]\tCUsbDevCon::~CUsbDevCon RequestsHandler" ) );
|
|
132 |
|
|
133 |
delete iUsbStateWatcher;
|
|
134 |
|
|
135 |
FLOG( _L( "[USBDEVCON]\tCUsbDevCon::~CUsbDevCon UsbStateWatcher" ) );
|
|
136 |
|
|
137 |
iUsbWatcher.Close();
|
|
138 |
|
|
139 |
FLOG( _L( "[USBDEVCON]\tCUsbDevCon::~CUsbDevCon UsbWatcher" ) );
|
|
140 |
|
|
141 |
iUsbManager.Close();
|
|
142 |
|
|
143 |
FLOG( _L( "[USBDEVCON]\tCUsbDevCon::~CUsbDevCon UsbManager" ) );
|
|
144 |
|
|
145 |
iLdd.Close();
|
|
146 |
|
|
147 |
FLOG( _L( "[USBDEVCON]\tCUsbDevCon::~CUsbDevCon LDD" ) );
|
|
148 |
|
|
149 |
iShutdownTimer.Close();
|
|
150 |
|
|
151 |
FLOG( _L( "[USBDEVCON]\tCUsbDevCon::~CUsbDevCon Timer" ) );
|
|
152 |
|
|
153 |
}
|
|
154 |
|
|
155 |
// ---------------------------------------------------------------------------
|
|
156 |
// Acts accordingly to USB state
|
|
157 |
// ---------------------------------------------------------------------------
|
|
158 |
//
|
|
159 |
void CUsbDevCon::ActAccordinglyToUsbStateL(TUsbcDeviceState aUsbcState)
|
|
160 |
{
|
|
161 |
|
|
162 |
switch (aUsbcState)
|
|
163 |
{
|
|
164 |
case EUsbcDeviceStateUndefined:
|
|
165 |
{
|
|
166 |
|
|
167 |
FLOG( _L( "[USBDEVCON]\tCUsbDevCon::ActAccordinglyToUsbStateL State: Undefined" ) );
|
|
168 |
|
|
169 |
StopL();
|
|
170 |
break;
|
|
171 |
}
|
|
172 |
|
|
173 |
case EUsbcDeviceStateAttached:
|
|
174 |
{
|
|
175 |
FLOG( _L( "[USBDEVCON]\tCUsbDevCon::ActAccordinglyToUsbStateL State: Attached, ignored" ) );
|
|
176 |
|
|
177 |
break;
|
|
178 |
}
|
|
179 |
|
|
180 |
case EUsbcDeviceStateSuspended:
|
|
181 |
{
|
|
182 |
FLOG( _L( "[USBDEVCON]\tCUsbDevCon::ActAccordinglyToUsbStateL State: Suspended" ) );
|
|
183 |
// NO break here
|
|
184 |
}
|
|
185 |
case EUsbcDeviceStatePowered:
|
|
186 |
{
|
|
187 |
FLOG( _L( "[USBDEVCON]\tCUsbDevCon::ActAccordinglyToUsbStateL State: Powered" ) );
|
|
188 |
|
|
189 |
// In powered or suspended state, we are not allowed to do any data
|
|
190 |
// communication. Hence if there are pending read/write requests,
|
|
191 |
// we need cancel them.
|
|
192 |
// Not call StopL() here because we do not want to shut down this
|
|
193 |
// process so earlier but in Undefined state.
|
|
194 |
if ( iStateMachine->IsStarted() )
|
|
195 |
{
|
|
196 |
iStateMachine->Stop();
|
|
197 |
// release device control
|
|
198 |
User::LeaveIfError(iLdd.ReleaseDeviceControl());
|
|
199 |
}
|
|
200 |
break;
|
|
201 |
}
|
|
202 |
|
|
203 |
case EUsbcDeviceStateDefault:
|
|
204 |
{
|
|
205 |
// The request will only be started from default state.
|
|
206 |
// If it has been started already, nothing will be done.
|
|
207 |
FLOG( _L( "[USBDEVCON]\tCUsbDevCon::ActAccordinglyToUsbStateL State: Default" ) );
|
|
208 |
|
|
209 |
StartL();
|
|
210 |
break;
|
|
211 |
}
|
|
212 |
|
|
213 |
case EUsbcDeviceStateAddress:
|
|
214 |
{
|
|
215 |
FLOG( _L( "[USBDEVCON]\tCUsbDevCon::ActAccordinglyToUsbStateL State: Addressed" ) );
|
|
216 |
|
|
217 |
StartL();
|
|
218 |
break;
|
|
219 |
}
|
|
220 |
|
|
221 |
case EUsbcDeviceStateConfigured:
|
|
222 |
{
|
|
223 |
FLOG( _L( "[USBDEVCON]\tCUsbDevCon::ActAccordinglyToUsbStateL State: Configured" ) );
|
|
224 |
|
|
225 |
StartL();
|
|
226 |
|
|
227 |
break;
|
|
228 |
}
|
|
229 |
default:
|
|
230 |
{
|
|
231 |
|
|
232 |
FLOG( _L( "[USBDEVCON]\tCUsbDevCon::ActAccordinglyToUsbStateL State: ***Unknown***" ) );
|
|
233 |
|
|
234 |
StopL();
|
|
235 |
break;
|
|
236 |
}
|
|
237 |
}
|
|
238 |
|
|
239 |
iPrevUsbState = aUsbcState;
|
|
240 |
|
|
241 |
// listen to USB states change
|
|
242 |
iUsbStateWatcher->Activate();
|
|
243 |
|
|
244 |
}
|
|
245 |
|
|
246 |
// ---------------------------------------------------------------------------
|
|
247 |
// Timer is completed
|
|
248 |
// ---------------------------------------------------------------------------
|
|
249 |
//
|
|
250 |
void CUsbDevCon::RunL()
|
|
251 |
{
|
|
252 |
FTRACE(FPrint(
|
|
253 |
_L("[USBDEVCON]\tCUsbDevCon::RunL: iStatus = %d" ),iStatus.Int()));
|
|
254 |
|
|
255 |
if(KErrNone == iStatus.Int())
|
|
256 |
{
|
|
257 |
FLOG( _L( "[USBDEVCON]\tCUsbDevCon::RunL Exiting usbdevcon" ) );
|
|
258 |
|
|
259 |
// Shutdown timer is finished, exit program
|
|
260 |
CActiveScheduler::Stop(); // destruct resources
|
|
261 |
}
|
|
262 |
}
|
|
263 |
|
|
264 |
// ---------------------------------------------------------------------------
|
|
265 |
// Cancellation
|
|
266 |
// ---------------------------------------------------------------------------
|
|
267 |
//
|
|
268 |
void CUsbDevCon::DoCancel()
|
|
269 |
{
|
|
270 |
FLOG( _L( "[USBDEVCON]\tCUsbDevCon::DoCancel" ) )
|
|
271 |
iShutdownTimer.Cancel();
|
|
272 |
}
|
|
273 |
|
|
274 |
// ----------------------------------------------------------------------------
|
|
275 |
// Standard active object error function.
|
|
276 |
// ----------------------------------------------------------------------------
|
|
277 |
//
|
|
278 |
TInt CUsbDevCon::RunError( TInt /*aError*/ )
|
|
279 |
{
|
|
280 |
return KErrNone;
|
|
281 |
}
|
|
282 |
|
|
283 |
// ---------------------------------------------------------------------------
|
|
284 |
// Starts UsbDevCon services
|
|
285 |
// ---------------------------------------------------------------------------
|
|
286 |
//
|
|
287 |
void CUsbDevCon::StartL()
|
|
288 |
{
|
|
289 |
|
|
290 |
FLOG( _L( "[USBDEVCON]\tCUsbDevCon::StartL" ) );
|
|
291 |
|
|
292 |
if(!iStateMachine->IsStarted())
|
|
293 |
{
|
|
294 |
// set device control
|
|
295 |
User::LeaveIfError(iLdd.SetDeviceControl());
|
|
296 |
|
|
297 |
// start state machine
|
|
298 |
iStateMachine->Start();
|
|
299 |
|
|
300 |
}
|
|
301 |
|
|
302 |
// Cancel shutdown timer, if it is started
|
|
303 |
iShutdownTimer.Cancel();
|
|
304 |
}
|
|
305 |
|
|
306 |
// ---------------------------------------------------------------------------
|
|
307 |
// Stops UsbDevCon services
|
|
308 |
// ---------------------------------------------------------------------------
|
|
309 |
//
|
|
310 |
void CUsbDevCon::StopL()
|
|
311 |
{
|
|
312 |
|
|
313 |
FLOG( _L( "[USBDEVCON]\tCUsbDevCon::StopL" ) );
|
|
314 |
|
|
315 |
if(iStateMachine->IsStarted())
|
|
316 |
{
|
|
317 |
|
|
318 |
// stop state machine
|
|
319 |
iStateMachine->Stop();
|
|
320 |
|
|
321 |
// release device control
|
|
322 |
User::LeaveIfError(iLdd.ReleaseDeviceControl());
|
|
323 |
|
|
324 |
}
|
|
325 |
|
|
326 |
if(!IsActive()) // not waiting for timer
|
|
327 |
{
|
|
328 |
FLOG( _L( "[USBDEVCON]\tCUsbDevCon::StopL Starting timer" ) );
|
|
329 |
// run timer
|
|
330 |
iShutdownTimer.Cancel();
|
|
331 |
|
|
332 |
// RunL will be called after KInactiveTimeForShutDown milliseconds
|
|
333 |
iShutdownTimer.After(iStatus, TTimeIntervalMicroSeconds32(KInactiveTimeForShutDown));
|
|
334 |
SetActive();
|
|
335 |
FLOG( _L( "[USBDEVCON]\tCUsbDevCon::StopL Timer is started" ) );
|
|
336 |
}
|
|
337 |
}
|
|
338 |
|
|
339 |
|
|
340 |
// ----------------------------------------------------------------------------
|
|
341 |
// Constructs and installs the active scheduler, constructs UsbDevCon object.
|
|
342 |
// ----------------------------------------------------------------------------
|
|
343 |
//
|
|
344 |
static void StartUsbDevConL()
|
|
345 |
{
|
|
346 |
|
|
347 |
FLOG( _L( "[USBDEVCON]\tStartUsbDevConL" ) );
|
|
348 |
|
|
349 |
// Construct and install the active scheduler
|
|
350 |
CActiveScheduler *myScheduler = new ( ELeave ) CActiveScheduler();
|
|
351 |
|
|
352 |
// Push onto the cleanup stack
|
|
353 |
CleanupStack::PushL( myScheduler );
|
|
354 |
|
|
355 |
// Install as the active scheduler
|
|
356 |
CActiveScheduler::Install( myScheduler );
|
|
357 |
|
|
358 |
CUsbDevCon* instance = CUsbDevCon::NewLC();
|
|
359 |
|
|
360 |
RProcess::Rendezvous(KErrNone); // signal to starter process, that usbdevcon started OK or failed to start
|
|
361 |
|
|
362 |
FLOG( _L( "[USBDEVCON]\tStartUsbDevConL Usbdevcon is started successfully" ) );
|
|
363 |
|
|
364 |
// returns only when UsbDevCon closing
|
|
365 |
CActiveScheduler::Start();
|
|
366 |
|
|
367 |
CleanupStack::PopAndDestroy( instance );
|
|
368 |
CleanupStack::PopAndDestroy( myScheduler );
|
|
369 |
}
|
|
370 |
|
|
371 |
// ---------------------------------------------------------------------------
|
|
372 |
// Main function of the application executable.
|
|
373 |
// ---------------------------------------------------------------------------
|
|
374 |
//
|
|
375 |
GLDEF_C TInt E32Main()
|
|
376 |
{
|
|
377 |
TInt err;
|
|
378 |
|
|
379 |
// rename the thread so it is easy to find the panic application
|
|
380 |
err = User::RenameThread(KUsbDevConName);
|
|
381 |
|
|
382 |
if(KErrNone != err)
|
|
383 |
{
|
|
384 |
return err;
|
|
385 |
}
|
|
386 |
|
|
387 |
__UHEAP_MARK;
|
|
388 |
|
|
389 |
// create clean-up stack
|
|
390 |
CTrapCleanup* cleanup = CTrapCleanup::New();
|
|
391 |
|
|
392 |
TRAP( err, StartUsbDevConL() );
|
|
393 |
|
|
394 |
delete cleanup; // destroy clean-up stack
|
|
395 |
__UHEAP_MARKEND;
|
|
396 |
|
|
397 |
return err;
|
|
398 |
}
|