82 /** |
82 /** |
83 An object encapsulating a request from the client(iOwningThread) to the GCE driver. |
83 An object encapsulating a request from the client(iOwningThread) to the GCE driver. |
84 */ |
84 */ |
85 typedef struct |
85 typedef struct |
86 { |
86 { |
87 /** The request status associated with the request - used to signal completion of the request and pass back a |
87 |
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88 /** The TClientRequest object associated with the request - used to signal completion of the request and pass back a |
88 completion code. */ |
89 completion code. */ |
89 TRequestStatus* iStatus; |
90 TClientRequest* iTClientReq; |
90 |
91 |
91 /** The thread which issued the request and which supplied the request status. */ |
92 /** The thread which issued the request and which supplied the request status. */ |
92 DThread* iOwningThread; |
93 DThread* iOwningThread; |
93 |
94 |
94 } TRequestNode; |
95 } TRequestNode; |
142 DDisplayLdd(); |
143 DDisplayLdd(); |
143 |
144 |
144 private: |
145 private: |
145 // Implementation for the differnt kinds of messages sent through RBusLogicalChannel |
146 // Implementation for the differnt kinds of messages sent through RBusLogicalChannel |
146 TInt DoControl(TInt aFunction, TAny* a1, TAny* a2, DThread* aClient); |
147 TInt DoControl(TInt aFunction, TAny* a1, TAny* a2, DThread* aClient); |
147 TInt DoRequest(TInt aReqNo, TRequestStatus* aStatus, TAny* a1, TAny* a2, DThread* aClient); |
148 TInt DoRequest(TInt aReqNo, TAny* a1, TAny* a2, TInt index, DThread* aClient); |
148 void DoCancel(TUint aMask); |
149 void DoCancel(TUint aMask); |
149 |
150 |
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151 TInt SendRequest(TMessageBase* aMsg); |
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152 TInt SendControl(TMessageBase* aMsg); |
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153 TInt SendMsg(TMessageBase* aMsg); |
150 |
154 |
151 TBufferNode* FindUserBufferNode(TInt aBufferId); |
155 TBufferNode* FindUserBufferNode(TInt aBufferId); |
152 TInt CheckAndOpenUserBuffer(TBufferNode* aNode, TInt aHandle, TInt aOffset, DThread* aClient); |
156 TInt CheckAndOpenUserBuffer(TBufferNode* aNode, TInt aHandle, TInt aOffset, DThread* aClient); |
153 TInt FreeUserBufferNode(TBufferNode* aNode); |
157 TInt FreeUserBufferNode(TBufferNode* aNode); |
154 |
158 |
155 void CompleteRequest(DThread* aThread,TRequestStatus*& aStatus,TInt aReason); |
159 void CompleteRequest(DThread* aThread, TClientRequest*& aTClientReq, TInt aReason); |
156 |
160 |
157 DDisplayPdd * Pdd(); |
161 DDisplayPdd * Pdd(); |
158 |
162 |
159 public: |
163 public: |
160 virtual TInt RequestComplete(TInt aRequest, TInt ); |
164 virtual TInt RequestComplete(TInt aRequest, TInt ); |
178 TBufferNode iLegacyBuffer[KDisplayLBMax]; |
182 TBufferNode iLegacyBuffer[KDisplayLBMax]; |
179 TBufferNode iCompositionBuffer[KDisplayCBMax]; |
183 TBufferNode iCompositionBuffer[KDisplayCBMax]; |
180 TBufferNode iUserBuffer[KDisplayUBMax]; |
184 TBufferNode iUserBuffer[KDisplayUBMax]; |
181 |
185 |
182 //pending queue for asynchronous requests |
186 //pending queue for asynchronous requests |
183 TRequestNode iPendingReq[KPendingReqArraySize]; |
187 TRequestNode iPendingReq[KPendingReqArraySize][KMaxQueuedRequests]; |
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188 |
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189 //Queue of TClientRequest objects, one for each type of asynchronous request. |
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190 TClientRequest* iClientRequest[KPendingReqArraySize][KMaxQueuedRequests]; |
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191 |
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192 //The index in structures iPendingReq and iClientRequest that identifies the active TClientRequest object. |
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193 //For each type of asynchronous request, iPendingIndex is the index of the active TClientRequest object |
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194 //in iPendingReq |
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195 TInt iPendingIndex[KPendingReqArraySize]; |
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196 |
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197 // Protect access of iClientRequest |
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198 DMutex * iClientRequestMutex; |
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199 |
184 |
200 |
185 // current index |
201 // current index |
186 TInt iLegacyBuffIdx; |
202 TInt iLegacyBuffIdx; |
187 TInt iCompositionBuffIdx; |
203 TInt iCompositionBuffIdx; |
188 TInt iUserBuffIdx; |
204 TInt iUserBuffIdx; |
189 |
205 |
190 // rotations |
206 |
191 TInt iLegacyRotation; |
207 RDisplayChannel::TDisplayRotation iLegacyRotation; |
192 TInt iCurrentRotation; |
208 RDisplayChannel::TDisplayRotation iCurrentRotation; |
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209 |
193 |
210 |
194 TBool iReady; |
211 TBool iReady; |
195 |
212 |
196 /** Used in debug builds to track that all calls to DThread::Open() are balanced with a close before the driver closes. */ |
213 /** Used in debug builds to track that all calls to DThread::Open() are balanced with a close before the driver closes. */ |
197 TInt iThreadOpenCount; |
214 TInt iThreadOpenCount; |
198 |
215 |
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216 /** Used in debug builds to track the number of asynchronous requests that are queued is equal to the number of |
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217 requests that are completed, before the driver closes.*/ |
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218 TInt iAsyncReqCount; |
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219 |
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220 /** Chunk used in UDEB only for testing user buffers. */ |
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221 DChunk* iChunk; |
199 }; |
222 }; |
200 |
223 |
201 |
224 |
202 /** |
225 /** |
203 Display PDD base class with GCE support. |
226 Display PDD base class with GCE support. |
225 /** |
248 /** |
226 Called by the LDD to handle the device specific part of setting the rotation. |
249 Called by the LDD to handle the device specific part of setting the rotation. |
227 |
250 |
228 @return KErrNone if successful; or one of the other system wide error codes. |
251 @return KErrNone if successful; or one of the other system wide error codes. |
229 */ |
252 */ |
230 virtual TInt SetRotation(TInt aRotation)=0; |
253 virtual TInt SetRotation(RDisplayChannel::TDisplayRotation aRotation)=0; |
231 |
254 |
232 /** |
255 /** |
233 Called by the LDD to handle the device specific part of posting a User Buffer. |
256 Called by the LDD to handle the device specific part of posting a User Buffer. |
234 |
257 |
235 @return KErrNone if successful; or one of the other system wide error codes. |
258 @return KErrNone if successful; or one of the other system wide error codes. |
314 inline TInt DDisplayPdd::RequestComplete(TInt aRequest, TInt aReason) |
337 inline TInt DDisplayPdd::RequestComplete(TInt aRequest, TInt aReason) |
315 { return iLdd->RequestComplete(aRequest,aReason); } |
338 { return iLdd->RequestComplete(aRequest,aReason); } |
316 |
339 |
317 |
340 |
318 |
341 |
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342 |
319 //#define _GCE_DISPLAY_DEBUG |
343 //#define _GCE_DISPLAY_DEBUG |
320 |
344 |
321 #ifdef _GCE_DISPLAY_DEBUG |
345 #ifdef _GCE_DISPLAY_DEBUG |
322 |
346 |
323 #define __DEBUG_PRINT(a) Kern::Printf(a) |
347 #define __DEBUG_PRINT(a) Kern::Printf(a) |
324 #define __DEBUG_PRINT2(a,b) Kern::Printf(a,b) |
348 #define __DEBUG_PRINT2(a,b) Kern::Printf(a,b) |
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349 #define __DEBUG_PRINT3(a,b,c) Kern::Printf(a,b,c) |
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350 #define __DEBUG_PRINT4(a,b,c,d) Kern::Printf(a,b,c,d) |
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351 #define __DEBUG_PRINT5(a,b,c,d,e) Kern::Printf(a,b,c,d,e) |
325 |
352 |
326 #else |
353 #else |
327 |
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328 #define __DEBUG_PRINT(a) |
354 #define __DEBUG_PRINT(a) |
329 #define __DEBUG_PRINT2(a,b) |
355 #define __DEBUG_PRINT2(a,b) |
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356 #define __DEBUG_PRINT3(a,b,c) |
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357 #define __DEBUG_PRINT4(a,b,c,d) |
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358 #define __DEBUG_PRINT5(a,b,c,d,e) |
330 |
359 |
331 #endif |
360 #endif |
332 |
361 |
333 |
362 |
334 #endif // __DISPLAY_H__ |
363 #endif // __DISPLAY_H__ |