📄 fw.lst
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182 1
183 1 // Task Dispatcher
184 1 while(TRUE) // Main Loop
185 1 {
186 2 if(GotSUD) // Wait for SUDAV
187 2 {
188 3 SetupCommand(); // Implement setup command
189 3 GotSUD = FALSE; // Clear SUDAV flag
190 3 }
191 2
192 2 // Poll User Device
193 2 // NOTE: Idle mode stops the processor clock. There are only two
194 2 // ways out of idle mode, the WAKEUP pin, and detection of the USB
195 2 // resume state on the USB bus. The timers will stop and the
196 2 // processor will not wake up on any other interrupts.
197 2 if (Sleep)
198 2 {
199 3 if(TD_Suspend())
200 3 {
201 4 Sleep = FALSE; // Clear the "go to sleep" flag. Do it here to prevent any race c
-ondition between wakeup and the next sleep.
202 4 do
203 4 {
204 5 EZUSB_Susp(); // Place processor in idle mode.
205 5 }
206 4 while(!Rwuen && EZUSB_EXTWAKEUP());
207 4 // Must continue to go back into suspend if the host has disabled remote wakeup
208 4 // *and* the wakeup was caused by the external wakeup pin.
209 4
210 4 // 8051 activity will resume here due to USB bus or Wakeup# pin activity.
211 4 EZUSB_Resume(); // If source is the Wakeup# pin, signal the host to Resume.
212 4 TD_Resume();
213 4 }
214 3 }
215 2 TD_Poll();
216 2 }
217 1 }
218
219 // Device request parser
220 void SetupCommand(void)
221 {
222 1 void *dscr_ptr;
223 1
224 1 switch(SETUPDAT[1])
225 1 {
226 2 case SC_GET_DESCRIPTOR: // *** Get Descriptor
227 2 if(DR_GetDescriptor())
228 2 switch(SETUPDAT[3])
229 2 {
230 3 case GD_DEVICE: // Device
231 3 SUDPTRH = MSB(pDeviceDscr);
232 3 SUDPTRL = LSB(pDeviceDscr);
233 3 break;
234 3 case GD_DEVICE_QUALIFIER: // Device Qualifier
235 3 SUDPTRH = MSB(pDeviceQualDscr);
236 3 SUDPTRL = LSB(pDeviceQualDscr);
237 3 break;
238 3 case GD_CONFIGURATION: // Configuration
239 3 SUDPTRH = MSB(pConfigDscr);
240 3 SUDPTRL = LSB(pConfigDscr);
C51 COMPILER V7.50 FW 08/10/2005 09:49:04 PAGE 5
241 3 break;
242 3 case GD_OTHER_SPEED_CONFIGURATION: // Other Speed Configuration
243 3 SUDPTRH = MSB(pOtherConfigDscr);
244 3 SUDPTRL = LSB(pOtherConfigDscr);
245 3 break;
246 3 case GD_STRING: // String
247 3 if(dscr_ptr = (void *)EZUSB_GetStringDscr(SETUPDAT[2]))
248 3 {
249 4 SUDPTRH = MSB(dscr_ptr);
250 4 SUDPTRL = LSB(dscr_ptr);
251 4 }
252 3 else
253 3 EZUSB_STALL_EP0(); // Stall End Point 0
254 3 break;
255 3 default: // Invalid request
256 3 EZUSB_STALL_EP0(); // Stall End Point 0
257 3 }
258 2 break;
259 2 case SC_GET_INTERFACE: // *** Get Interface
260 2 DR_GetInterface();
261 2 break;
262 2 case SC_SET_INTERFACE: // *** Set Interface
263 2 DR_SetInterface();
264 2 break;
265 2 case SC_SET_CONFIGURATION: // *** Set Configuration
266 2 DR_SetConfiguration();
267 2 break;
268 2 case SC_GET_CONFIGURATION: // *** Get Configuration
269 2 DR_GetConfiguration();
270 2 break;
271 2 case SC_GET_STATUS: // *** Get Status
272 2 if(DR_GetStatus())
273 2 switch(SETUPDAT[0])
274 2 {
275 3 case GS_DEVICE: // Device
276 3 EP0BUF[0] = ((BYTE)Rwuen << 1) | (BYTE)Selfpwr;
277 3 EP0BUF[1] = 0;
278 3 EP0BCH = 0;
279 3 EP0BCL = 2;
280 3 break;
281 3 case GS_INTERFACE: // Interface
282 3 EP0BUF[0] = 0;
283 3 EP0BUF[1] = 0;
284 3 EP0BCH = 0;
285 3 EP0BCL = 2;
286 3 break;
287 3 case GS_ENDPOINT: // End Point
288 3 EP0BUF[0] = *(BYTE xdata *) epcs(SETUPDAT[4]) & bmEPSTALL;
289 3 EP0BUF[1] = 0;
290 3 EP0BCH = 0;
291 3 EP0BCL = 2;
292 3 break;
293 3 default: // Invalid Command
294 3 EZUSB_STALL_EP0(); // Stall End Point 0
295 3 }
296 2 break;
297 2 case SC_CLEAR_FEATURE: // *** Clear Feature
298 2 if(DR_ClearFeature())
299 2 switch(SETUPDAT[0])
300 2 {
301 3 case FT_DEVICE: // Device
302 3 if(SETUPDAT[2] == 1)
C51 COMPILER V7.50 FW 08/10/2005 09:49:04 PAGE 6
303 3 Rwuen = FALSE; // Disable Remote Wakeup
304 3 else
305 3 EZUSB_STALL_EP0(); // Stall End Point 0
306 3 break;
307 3 case FT_ENDPOINT: // End Point
308 3 if(SETUPDAT[2] == 0)
309 3 {
310 4 *(BYTE xdata *) epcs(SETUPDAT[4]) &= ~bmEPSTALL;
311 4 EZUSB_RESET_DATA_TOGGLE( SETUPDAT[4] );
312 4 }
313 3 else
314 3 EZUSB_STALL_EP0(); // Stall End Point 0
315 3 break;
316 3 }
317 2 break;
318 2 case SC_SET_FEATURE: // *** Set Feature
319 2 if(DR_SetFeature())
320 2 switch(SETUPDAT[0])
321 2 {
322 3 case FT_DEVICE: // Device
323 3 if(SETUPDAT[2] == 1)
324 3 Rwuen = TRUE; // Enable Remote Wakeup
325 3 else if(SETUPDAT[2] == 2)
326 3 // Set Feature Test Mode. The core handles this request. However, it is
327 3 // necessary for the firmware to complete the handshake phase of the
328 3 // control transfer before the chip will enter test mode. It is also
329 3 // necessary for FX2 to be physically disconnected (D+ and D-)
330 3 // from the host before it will enter test mode.
331 3 break;
332 3 else
333 3 EZUSB_STALL_EP0(); // Stall End Point 0
334 3 break;
335 3 case FT_ENDPOINT: // End Point
336 3 *(BYTE xdata *) epcs(SETUPDAT[4]) |= bmEPSTALL;
337 3 break;
338 3 }
339 2 break;
340 2 default: // *** Invalid Command
341 2 if(DR_VendorCmnd())
342 2 EZUSB_STALL_EP0(); // Stall End Point 0
343 2 }
344 1
345 1 // Acknowledge handshake phase of device request
346 1 EP0CS |= bmHSNAK;
347 1 }
348
349 // Wake-up interrupt handler
350 void resume_isr(void) interrupt WKUP_VECT
351 {
352 1 EZUSB_CLEAR_RSMIRQ();
353 1 }
354
355
MODULE INFORMATION: STATIC OVERLAYABLE
CODE SIZE = 1095 ----
CONSTANT SIZE = 10 ----
XDATA SIZE = ---- ----
PDATA SIZE = ---- ----
DATA SIZE = 14 16
IDATA SIZE = ---- ----
C51 COMPILER V7.50 FW 08/10/2005 09:49:04 PAGE 7
BIT SIZE = 4 ----
END OF MODULE INFORMATION.
C51 COMPILATION COMPLETE. 0 WARNING(S), 0 ERROR(S)
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