📄 fw.lst
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190 1 // is not necessary but doesn't hurt anything
191 1 USBCS &=~bmDISCON;
192 1
193 1 CKCON = (CKCON&(~bmSTRETCH)) | FW_STRETCH_VALUE; // Set stretch to 0 (after renumeration)
194 1
195 1 // clear the Sleep flag.
196 1 Sleep = FALSE;
197 1
198 1 // Task Dispatcher
199 1 while(TRUE) // Main Loop
200 1 {
201 2 if(GotSUD) // Wait for SUDAV
202 2 {
203 3 SetupCommand(); // Implement setup command
204 3 GotSUD = FALSE; // Clear SUDAV flag
205 3 }
206 2
207 2 // Poll User Device
208 2 // NOTE: Idle mode stops the processor clock. There are only two
209 2 // ways out of idle mode, the WAKEUP pin, and detection of the USB
210 2 // resume state on the USB bus. The timers will stop and the
211 2 // processor will not wake up on any other interrupts.
212 2 if (Sleep)
213 2 {
214 3 if(TD_Suspend())
215 3 {
216 4 Sleep = FALSE; // Clear the "go to sleep" flag. Do it here to prevent any race c
-ondition between wakeup and the next sleep.
217 4 do
218 4 {
219 5 EZUSB_Susp(); // Place processor in idle mode.
220 5 }
221 4 while(!Rwuen && EZUSB_EXTWAKEUP());
222 4 // Must continue to go back into suspend if the host has disabled remote wakeup
223 4 // *and* the wakeup was caused by the external wakeup pin.
224 4
225 4 // 8051 activity will resume here due to USB bus or Wakeup# pin activity.
226 4 EZUSB_Resume(); // If source is the Wakeup# pin, signal the host to Resume.
227 4 TD_Resume();
228 4 }
229 3 }
230 2 TD_Poll();
231 2 }
232 1 }
233
234 // Device request parser
235 void SetupCommand(void)
236 {
237 1 void *dscr_ptr;
238 1
239 1 switch(SETUPDAT[1])
240 1 {
C51 COMPILER V7.50 FW 11/03/2006 09:42:15 PAGE 5
241 2 case SC_GET_DESCRIPTOR: // *** Get Descriptor
242 2 if(DR_GetDescriptor())
243 2 switch(SETUPDAT[3])
244 2 {
245 3 case GD_DEVICE: // Device
246 3 SUDPTRH = MSB(pDeviceDscr);
247 3 SUDPTRL = LSB(pDeviceDscr);
248 3 break;
249 3 case GD_DEVICE_QUALIFIER: // Device Qualifier
250 3 SUDPTRH = MSB(pDeviceQualDscr);
251 3 SUDPTRL = LSB(pDeviceQualDscr);
252 3 break;
253 3 case GD_CONFIGURATION: // Configuration
254 3 SUDPTRH = MSB(pConfigDscr);
255 3 SUDPTRL = LSB(pConfigDscr);
256 3 break;
257 3 case GD_OTHER_SPEED_CONFIGURATION: // Other Speed Configuration
258 3 SUDPTRH = MSB(pOtherConfigDscr);
259 3 SUDPTRL = LSB(pOtherConfigDscr);
260 3 break;
261 3 case GD_STRING: // String
262 3 if(dscr_ptr = (void *)EZUSB_GetStringDscr(SETUPDAT[2]))
263 3 {
264 4 SUDPTRH = MSB(dscr_ptr);
265 4 SUDPTRL = LSB(dscr_ptr);
266 4 }
267 3 else
268 3 EZUSB_STALL_EP0(); // Stall End Point 0
269 3 break;
270 3 default: // Invalid request
271 3 EZUSB_STALL_EP0(); // Stall End Point 0
272 3 }
273 2 break;
274 2 case SC_GET_INTERFACE: // *** Get Interface
275 2 DR_GetInterface();
276 2 break;
277 2 case SC_SET_INTERFACE: // *** Set Interface
278 2 DR_SetInterface();
279 2 break;
280 2 case SC_SET_CONFIGURATION: // *** Set Configuration
281 2 DR_SetConfiguration();
282 2 break;
283 2 case SC_GET_CONFIGURATION: // *** Get Configuration
284 2 DR_GetConfiguration();
285 2 break;
286 2 case SC_GET_STATUS: // *** Get Status
287 2 if(DR_GetStatus())
288 2 switch(SETUPDAT[0])
289 2 {
290 3 case GS_DEVICE: // Device
291 3 EP0BUF[0] = ((BYTE)Rwuen << 1) | (BYTE)Selfpwr;
292 3 EP0BUF[1] = 0;
293 3 EP0BCH = 0;
294 3 EP0BCL = 2;
295 3 break;
296 3 case GS_INTERFACE: // Interface
297 3 EP0BUF[0] = 0;
298 3 EP0BUF[1] = 0;
299 3 EP0BCH = 0;
300 3 EP0BCL = 2;
301 3 break;
302 3 case GS_ENDPOINT: // End Point
C51 COMPILER V7.50 FW 11/03/2006 09:42:15 PAGE 6
303 3 EP0BUF[0] = *(BYTE xdata *) epcs(SETUPDAT[4]) & bmEPSTALL;
304 3 EP0BUF[1] = 0;
305 3 EP0BCH = 0;
306 3 EP0BCL = 2;
307 3 break;
308 3 default: // Invalid Command
309 3 EZUSB_STALL_EP0(); // Stall End Point 0
310 3 }
311 2 break;
312 2 case SC_CLEAR_FEATURE: // *** Clear Feature
313 2 if(DR_ClearFeature())
314 2 switch(SETUPDAT[0])
315 2 {
316 3 case FT_DEVICE: // Device
317 3 if(SETUPDAT[2] == 1)
318 3 Rwuen = FALSE; // Disable Remote Wakeup
319 3 else
320 3 EZUSB_STALL_EP0(); // Stall End Point 0
321 3 break;
322 3 case FT_ENDPOINT: // End Point
323 3 if(SETUPDAT[2] == 0)
324 3 {
325 4 *(BYTE xdata *) epcs(SETUPDAT[4]) &= ~bmEPSTALL;
326 4 EZUSB_RESET_DATA_TOGGLE( SETUPDAT[4] );
327 4 }
328 3 else
329 3 EZUSB_STALL_EP0(); // Stall End Point 0
330 3 break;
331 3 }
332 2 break;
333 2 case SC_SET_FEATURE: // *** Set Feature
334 2 if(DR_SetFeature())
335 2 switch(SETUPDAT[0])
336 2 {
337 3 case FT_DEVICE: // Device
338 3 if(SETUPDAT[2] == 1)
339 3 Rwuen = TRUE; // Enable Remote Wakeup
340 3 else if(SETUPDAT[2] == 2)
341 3 // Set Feature Test Mode. The core handles this request. However, it is
342 3 // necessary for the firmware to complete the handshake phase of the
343 3 // control transfer before the chip will enter test mode. It is also
344 3 // necessary for FX2 to be physically disconnected (D+ and D-)
345 3 // from the host before it will enter test mode.
346 3 break;
347 3 else
348 3 EZUSB_STALL_EP0(); // Stall End Point 0
349 3 break;
350 3 case FT_ENDPOINT: // End Point
351 3 *(BYTE xdata *) epcs(SETUPDAT[4]) |= bmEPSTALL;
352 3 break;
353 3 }
354 2 break;
355 2 default: // *** Invalid Command
356 2 if(DR_VendorCmnd())
357 2 EZUSB_STALL_EP0(); // Stall End Point 0
358 2 }
359 1
360 1 // Acknowledge handshake phase of device request
361 1 EP0CS |= bmHSNAK;
362 1 }
363
364 // Wake-up interrupt handler
C51 COMPILER V7.50 FW 11/03/2006 09:42:15 PAGE 7
365 void resume_isr(void) interrupt WKUP_VECT
366 {
367 1 EZUSB_CLEAR_RSMIRQ();
368 1 }
369
370
MODULE INFORMATION: STATIC OVERLAYABLE
CODE SIZE = 915 ----
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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