📄 fw.lst
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183 1
184 1 // Task Dispatcher
185 1 while(TRUE) // Main Loop
186 1 {
187 2 if(GotSUD) // Wait for SUDAV
188 2 {
189 3 SetupCommand(); // Implement setup command
190 3 GotSUD = FALSE; // Clear SUDAV flag
191 3 }
192 2
193 2 // Poll User Device
194 2 // NOTE: Idle mode stops the processor clock. There are only two
195 2 // ways out of idle mode, the WAKEUP pin, and detection of the USB
196 2 // resume state on the USB bus. The timers will stop and the
197 2 // processor will not wake up on any other interrupts.
198 2 if (Sleep)
199 2 {
200 3 if(TD_Suspend())
201 3 {
202 4 Sleep = FALSE; // Clear the "go to sleep" flag. Do it here to prevent any race c
-ondition between wakeup and the next sleep.
203 4 do
204 4 {
205 5 EZUSB_Susp(); // Place processor in idle mode.
206 5 }
207 4 while(!Rwuen && EZUSB_EXTWAKEUP());
208 4 // Must continue to go back into suspend if the host has disabled remote wakeup
209 4 // *and* the wakeup was caused by the external wakeup pin.
210 4
211 4 // 8051 activity will resume here due to USB bus or Wakeup# pin activity.
212 4 EZUSB_Resume(); // If source is the Wakeup# pin, signal the host to Resume.
213 4 TD_Resume();
214 4 }
215 3 }
216 2 TD_Poll();
217 2 }
218 1 }
219
220 // Device request parser
221 void SetupCommand(void)
222 {
223 1 void *dscr_ptr;
224 1
225 1 switch(SETUPDAT[1])
226 1 {
227 2 case SC_GET_DESCRIPTOR: // *** Get Descriptor
228 2 if(DR_GetDescriptor())
229 2 switch(SETUPDAT[3])
230 2 {
231 3 case GD_DEVICE: // Device
232 3 SUDPTRH = MSB(pDeviceDscr);
233 3 SUDPTRL = LSB(pDeviceDscr);
234 3 break;
235 3 case GD_DEVICE_QUALIFIER: // Device Qualifier
236 3 SUDPTRH = MSB(pDeviceQualDscr);
237 3 SUDPTRL = LSB(pDeviceQualDscr);
238 3 break;
239 3 case GD_CONFIGURATION: // Configuration
240 3 SUDPTRH = MSB(pConfigDscr);
C51 COMPILER V6.10 FW 04/10/2008 17:22:30 PAGE 5
241 3 SUDPTRL = LSB(pConfigDscr);
242 3 break;
243 3 case GD_OTHER_SPEED_CONFIGURATION: // Other Speed Configuration
244 3 SUDPTRH = MSB(pOtherConfigDscr);
245 3 SUDPTRL = LSB(pOtherConfigDscr);
246 3 break;
247 3 case GD_STRING: // String
248 3 if(dscr_ptr = (void *)EZUSB_GetStringDscr(SETUPDAT[2]))
249 3 {
250 4 SUDPTRH = MSB(dscr_ptr);
251 4 SUDPTRL = LSB(dscr_ptr);
252 4 }
253 3 else
254 3 EZUSB_STALL_EP0(); // Stall End Point 0
255 3 break;
256 3 default: // Invalid request
257 3 EZUSB_STALL_EP0(); // Stall End Point 0
258 3 }
259 2 break;
260 2 case SC_GET_INTERFACE: // *** Get Interface
261 2 DR_GetInterface();
262 2 break;
263 2 case SC_SET_INTERFACE: // *** Set Interface
264 2 DR_SetInterface();
265 2 break;
266 2 case SC_SET_CONFIGURATION: // *** Set Configuration
267 2 DR_SetConfiguration();
268 2 break;
269 2 case SC_GET_CONFIGURATION: // *** Get Configuration
270 2 DR_GetConfiguration();
271 2 break;
272 2 case SC_GET_STATUS: // *** Get Status
273 2 if(DR_GetStatus())
274 2 switch(SETUPDAT[0])
275 2 {
276 3 case GS_DEVICE: // Device
277 3 EP0BUF[0] = ((BYTE)Rwuen << 1) | (BYTE)Selfpwr;
278 3 EP0BUF[1] = 0;
279 3 EP0BCH = 0;
280 3 EP0BCL = 2;
281 3 break;
282 3 case GS_INTERFACE: // Interface
283 3 EP0BUF[0] = 0;
284 3 EP0BUF[1] = 0;
285 3 EP0BCH = 0;
286 3 EP0BCL = 2;
287 3 break;
288 3 case GS_ENDPOINT: // End Point
289 3 EP0BUF[0] = *(BYTE xdata *) epcs(SETUPDAT[4]) & bmEPSTALL;
290 3 EP0BUF[1] = 0;
291 3 EP0BCH = 0;
292 3 EP0BCL = 2;
293 3 break;
294 3 default: // Invalid Command
295 3 EZUSB_STALL_EP0(); // Stall End Point 0
296 3 }
297 2 break;
298 2 case SC_CLEAR_FEATURE: // *** Clear Feature
299 2 if(DR_ClearFeature())
300 2 switch(SETUPDAT[0])
301 2 {
302 3 case FT_DEVICE: // Device
C51 COMPILER V6.10 FW 04/10/2008 17:22:30 PAGE 6
303 3 if(SETUPDAT[2] == 1)
304 3 Rwuen = FALSE; // Disable Remote Wakeup
305 3 else
306 3 EZUSB_STALL_EP0(); // Stall End Point 0
307 3 break;
308 3 case FT_ENDPOINT: // End Point
309 3 if(SETUPDAT[2] == 0)
310 3 {
311 4 *(BYTE xdata *) epcs(SETUPDAT[4]) &= ~bmEPSTALL;
312 4 EZUSB_RESET_DATA_TOGGLE( SETUPDAT[4] );
313 4 }
314 3 else
315 3 EZUSB_STALL_EP0(); // Stall End Point 0
316 3 break;
317 3 }
318 2 break;
319 2 case SC_SET_FEATURE: // *** Set Feature
320 2 if(DR_SetFeature())
321 2 switch(SETUPDAT[0])
322 2 {
323 3 case FT_DEVICE: // Device
324 3 if(SETUPDAT[2] == 1)
325 3 Rwuen = TRUE; // Enable Remote Wakeup
326 3 else if(SETUPDAT[2] == 2)
327 3 // Set Feature Test Mode. The core handles this request. However, it is
328 3 // necessary for the firmware to complete the handshake phase of the
329 3 // control transfer before the chip will enter test mode. It is also
330 3 // necessary for FX2 to be physically disconnected (D+ and D-)
331 3 // from the host before it will enter test mode.
332 3 break;
333 3 else
334 3 EZUSB_STALL_EP0(); // Stall End Point 0
335 3 break;
336 3 case FT_ENDPOINT: // End Point
337 3 *(BYTE xdata *) epcs(SETUPDAT[4]) |= bmEPSTALL;
338 3 break;
339 3 }
340 2 break;
341 2 default: // *** Invalid Command
342 2 if(DR_VendorCmnd())
343 2 EZUSB_STALL_EP0(); // Stall End Point 0
344 2 }
345 1
346 1 // Acknowledge handshake phase of device request
347 1 EP0CS |= bmHSNAK;
348 1 }
349
350 // Wake-up interrupt handler
351 void resume_isr(void) interrupt WKUP_VECT
352 {
353 1 EZUSB_CLEAR_RSMIRQ();
354 1 }
355
356
MODULE INFORMATION: STATIC OVERLAYABLE
CODE SIZE = 1098 ----
CONSTANT SIZE = 10 ----
XDATA SIZE = ---- ----
PDATA SIZE = ---- ----
DATA SIZE = 14 16
C51 COMPILER V6.10 FW 04/10/2008 17:22:30 PAGE 7
IDATA SIZE = ---- ----
BIT SIZE = 4 ----
END OF MODULE INFORMATION.
C51 COMPILATION COMPLETE. 0 WARNING(S), 0 ERROR(S)
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