📄 fw.lst
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189 1
190 1 CKCON = (CKCON&(~bmSTRETCH)) | FW_STRETCH_VALUE; // Set stretch to 0 (after renumeration)
191 1
192 1 // clear the Sleep flag.
193 1 Sleep = FALSE;
194 1 TD_Init();
195 1 // EA = 0;
196 1 // Task Dispatcher
197 1 while(TRUE) // Main Loop
198 1 {
199 2 if(GotSUD) // Wait for SUDAV
200 2 {
201 3 SetupCommand(); // Implement setup command
202 3 GotSUD = FALSE; // Clear SUDAV flag
203 3 }
204 2
205 2 // Poll User Device
206 2 // NOTE: Idle mode stops the processor clock. There are only two
207 2 // ways out of idle mode, the WAKEUP pin, and detection of the USB
208 2 // resume state on the USB bus. The timers will stop and the
209 2 // processor will not wake up on any other interrupts.
210 2 if (Sleep)
211 2 {
212 3 if(TD_Suspend())
213 3 {
214 4 Sleep = FALSE; // Clear the "go to sleep" flag. Do it here to prevent any race c
-ondition between wakeup and the next sleep.
215 4 do
216 4 {
217 5 EZUSB_Susp(); // Place processor in idle mode.
218 5 }
219 4 while(!Rwuen && EZUSB_EXTWAKEUP());
220 4 // Must continue to go back into suspend if the host has disabled remote wakeup
221 4 // *and* the wakeup was caused by the external wakeup pin.
222 4
223 4 // 8051 activity will resume here due to USB bus or Wakeup# pin activity.
224 4 EZUSB_Resume(); // If source is the Wakeup# pin, signal the host to Resume.
225 4 TD_Resume();
226 4 }
227 3 }
228 2 TD_Poll();
229 2 }
230 1 }
231
232 // Device request parser
233 void SetupCommand(void)
234 {
235 1 void *dscr_ptr;
236 1
237 1 switch(SETUPDAT[1])
238 1 {
239 2 case SC_GET_DESCRIPTOR: // *** Get Descriptor
240 2 if(DR_GetDescriptor())
C51 COMPILER V6.23a FW 10/26/2005 19:02:16 PAGE 5
241 2 switch(SETUPDAT[3])
242 2 {
243 3 case GD_DEVICE: // Device
244 3 SUDPTRH = MSB(pDeviceDscr);
245 3 SUDPTRL = LSB(pDeviceDscr);
246 3 break;
247 3 case GD_DEVICE_QUALIFIER: // Device Qualifier
248 3 SUDPTRH = MSB(pDeviceQualDscr);
249 3 SUDPTRL = LSB(pDeviceQualDscr);
250 3 break;
251 3 case GD_CONFIGURATION: // Configuration
252 3 SUDPTRH = MSB(pConfigDscr);
253 3 SUDPTRL = LSB(pConfigDscr);
254 3 break;
255 3 case GD_OTHER_SPEED_CONFIGURATION: // Other Speed Configuration
256 3 SUDPTRH = MSB(pOtherConfigDscr);
257 3 SUDPTRL = LSB(pOtherConfigDscr);
258 3 break;
259 3 case GD_STRING: // String
260 3 if(dscr_ptr = (void *)EZUSB_GetStringDscr(SETUPDAT[2]))
261 3 {
262 4 SUDPTRH = MSB(dscr_ptr);
263 4 SUDPTRL = LSB(dscr_ptr);
264 4 }
265 3 else
266 3 EZUSB_STALL_EP0(); // Stall End Point 0
267 3 break;
268 3 default: // Invalid request
269 3 EZUSB_STALL_EP0(); // Stall End Point 0
270 3 }
271 2 break;
272 2 case SC_GET_INTERFACE: // *** Get Interface
273 2 DR_GetInterface();
274 2 break;
275 2 case SC_SET_INTERFACE: // *** Set Interface
276 2 DR_SetInterface();
277 2 break;
278 2 case SC_SET_CONFIGURATION: // *** Set Configuration
279 2 DR_SetConfiguration();
280 2 break;
281 2 case SC_GET_CONFIGURATION: // *** Get Configuration
282 2 DR_GetConfiguration();
283 2 break;
284 2 case SC_GET_STATUS: // *** Get Status
285 2 if(DR_GetStatus())
286 2 switch(SETUPDAT[0])
287 2 {
288 3 case GS_DEVICE: // Device
289 3 EP0BUF[0] = ((BYTE)Rwuen << 1) | (BYTE)Selfpwr;
290 3 EP0BUF[1] = 0;
291 3 EP0BCH = 0;
292 3 EP0BCL = 2;
293 3 break;
294 3 case GS_INTERFACE: // Interface
295 3 EP0BUF[0] = 0;
296 3 EP0BUF[1] = 0;
297 3 EP0BCH = 0;
298 3 EP0BCL = 2;
299 3 break;
300 3 case GS_ENDPOINT: // End Point
301 3 EP0BUF[0] = *(BYTE xdata *) epcs(SETUPDAT[4]) & bmEPSTALL;
302 3 EP0BUF[1] = 0;
C51 COMPILER V6.23a FW 10/26/2005 19:02:16 PAGE 6
303 3 EP0BCH = 0;
304 3 EP0BCL = 2;
305 3 break;
306 3 default: // Invalid Command
307 3 EZUSB_STALL_EP0(); // Stall End Point 0
308 3 }
309 2 break;
310 2 case SC_CLEAR_FEATURE: // *** Clear Feature
311 2 if(DR_ClearFeature())
312 2 switch(SETUPDAT[0])
313 2 {
314 3 case FT_DEVICE: // Device
315 3 if(SETUPDAT[2] == 1)
316 3 Rwuen = FALSE; // Disable Remote Wakeup
317 3 else
318 3 EZUSB_STALL_EP0(); // Stall End Point 0
319 3 break;
320 3 case FT_ENDPOINT: // End Point
321 3 if(SETUPDAT[2] == 0)
322 3 {
323 4 *(BYTE xdata *) epcs(SETUPDAT[4]) &= ~bmEPSTALL;
324 4 EZUSB_RESET_DATA_TOGGLE( SETUPDAT[4] );
325 4 }
326 3 else
327 3 EZUSB_STALL_EP0(); // Stall End Point 0
328 3 break;
329 3 }
330 2 break;
331 2 case SC_SET_FEATURE: // *** Set Feature
332 2 if(DR_SetFeature())
333 2 switch(SETUPDAT[0])
334 2 {
335 3 case FT_DEVICE: // Device
336 3 if(SETUPDAT[2] == 1)
337 3 Rwuen = TRUE; // Enable Remote Wakeup
338 3 else if(SETUPDAT[2] == 2)
339 3 // Set Feature Test Mode. The core handles this request. However, it is
340 3 // necessary for the firmware to complete the handshake phase of the
341 3 // control transfer before the chip will enter test mode. It is also
342 3 // necessary for FX2 to be physically disconnected (D+ and D-)
343 3 // from the host before it will enter test mode.
344 3 break;
345 3 else
346 3 EZUSB_STALL_EP0(); // Stall End Point 0
347 3 break;
348 3 case FT_ENDPOINT: // End Point
349 3 *(BYTE xdata *) epcs(SETUPDAT[4]) |= bmEPSTALL;
350 3 break;
351 3 }
352 2 break;
353 2 default: // *** Invalid Command
354 2 if(DR_VendorCmnd())
355 2 EZUSB_STALL_EP0(); // Stall End Point 0
356 2 }
357 1
358 1 // Acknowledge handshake phase of device request
359 1 EP0CS |= bmHSNAK;
360 1 }
361
362 // Wake-up interrupt handler
363 void resume_isr(void) interrupt WKUP_VECT
364 {
C51 COMPILER V6.23a FW 10/26/2005 19:02:16 PAGE 7
365 1 EZUSB_CLEAR_RSMIRQ();
366 1 }
367
368
MODULE INFORMATION: STATIC OVERLAYABLE
CODE SIZE = 1144 ----
CONSTANT SIZE = 10 ----
XDATA SIZE = ---- ----
PDATA SIZE = ---- ----
DATA SIZE = 14 16
IDATA SIZE = ---- ----
BIT SIZE = 4 ----
END OF MODULE INFORMATION.
C51 COMPILATION COMPLETE. 0 WARNING(S), 0 ERROR(S)
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