📄 rtl8019.lst.svn-base
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248 1 chRTLInitTmp = ReadReg(0x05);
249 1 chRTLInitTmp = ReadReg(0x04);
250 1
251 1 RTLPage(1);
252 1 //MAR0~7
253 1 chRTLInitTmp = ReadReg(0x08);
254 1 chRTLInitTmp = ReadReg(0x09);
255 1 chRTLInitTmp = ReadReg(0x0a);
256 1 chRTLInitTmp = ReadReg(0x0b);
257 1 chRTLInitTmp = ReadReg(0x0c);
258 1 chRTLInitTmp = ReadReg(0x0d);
259 1 chRTLInitTmp = ReadReg(0x0e);
260 1 chRTLInitTmp = ReadReg(0x0f);
261 1 //for(i = 0;i < 20000;i++);
262 1 //PAR0~5
263 1 chRTLInitTmp = ReadReg(0x03);
264 1 chRTLInitTmp = ReadReg(0x01);
265 1 chRTLInitTmp = ReadReg(0x02);
266 1 chRTLInitTmp = ReadReg(0x06);
267 1 chRTLInitTmp = ReadReg(0x05);
268 1 chRTLInitTmp = ReadReg(0x04); */
269 1
270 1 /* transimit start page */
271 1 LastSendStartPage = SEND_START_PAGE0;
272 1 StartPageOfPacket = RECEIVE_START_PAGE + 1;
273 1
274 1 /* in the beginning, no packet is in sending */
275 1 InSending = FALSE;
276 1
277 1 RTLPage(0);
278 1 /* initial over, start command and receive */
279 1 WriteReg(0x0c,0xcc); //将芯片置于正常模式，跟外部网络连接
280 1 WriteReg(0x0d,0xe0);
281 1 WriteReg(0x07,0xFF);
282 1 chRTLInitTmp = ReadReg(0x07); //清除所有中断标志位
283 1 //(CR_PAGE0 | CR_ABORT_COMPLETE_DMA | CR_START_COMMAND));
284 1 WriteReg(0x00,0x22);
285 1 }
*** WARNING C280 IN LINE 169 OF E:\NETBRO~1\TRUNK\NETBRO~1\VW\RTL8019.C: 'i': unreferenced local variable
286
287 /* write buffer to rlt ram */
288 void RTLWriteRam(unsigned int address, unsigned int size, unsigned char xdata * buff) reentrant
289 {
290 1 unsigned char xdata *Endp;
291 1 unsigned char PrePage; // store page
292 1 PrePage = ReadReg(0x00);//CR
293 1 RTLPage(0);
294 1 WriteReg(RSARH_WPAGE0,(unsigned char)((address>>8)&0x00ff));
295 1 WriteReg(RSARL_WPAGE0,(unsigned char)address);
296 1 WriteReg(RBCRH_WPAGE0,(unsigned char)((size>>8)&0x00ff));
297 1 WriteReg(RBCRL_WPAGE0,(unsigned char)size);
298 1 WriteReg(CR,(0x00 | CR_REMOTE_WRITE | CR_START_COMMAND));
299 1 for(Endp = buff + size; buff < Endp;)
300 1 {
301 2 WriteReg(REMOTE_DMA_PORT,*(buff++));
C51 COMPILER V7.06 RTL8019 07/24/2007 16:39:36 PAGE 6
302 2 }
303 1 /* complete dma */
304 1 WriteReg(RBCRH_WPAGE0,0);
305 1 WriteReg(RBCRL_WPAGE0,0);
306 1 WriteReg(0x00,((PrePage&0xC0) | CR_ABORT_COMPLETE_DMA | CR_START_COMMAND));
307 1 //printf("RTL8019AS初始化完成！");
308 1 }
309
310 /* read rlt ram data to buffer */
311 void RTLReadRam(unsigned int address,unsigned int size,unsigned char xdata * buff) reentrant
312 {
313 1 unsigned char xdata * Endp;
314 1 unsigned char PrePage; /* store page */
315 1
316 1 PrePage = ReadReg(CR);
317 1 RTLPage(0);
318 1 WriteReg(RSARH_WPAGE0,(unsigned char)((address>>8)&0x00ff));
319 1 WriteReg(RSARL_WPAGE0,(unsigned char)address);
320 1 WriteReg(RBCRH_WPAGE0,(unsigned char)((size>>8)&0x00ff));
321 1 WriteReg(RBCRL_WPAGE0,(unsigned char)size);
322 1 WriteReg(CR,(0x00 | CR_REMOTE_READ | CR_START_COMMAND));
323 1 for(Endp = buff + size; buff < Endp;)
324 1 {
325 2 *(buff++) = ReadReg(REMOTE_DMA_PORT);
326 2 }
327 1 /* complete dma */
328 1 WriteReg(RBCRH_WPAGE0,0);
329 1 WriteReg(RBCRL_WPAGE0,0);
330 1 WriteReg(CR,((PrePage&0xC0) | CR_ABORT_COMPLETE_DMA | CR_START_COMMAND));
331 1 }
332 /* call this function to send a packet by RTL8019. packet store in ram
333 starts at 'buffer' and its size is 'size'. 'size' should not large than
334 MAX_PACKET_SIZE or the excess data will be discard. */
335 unsigned char RTLSendPacket(unsigned char xdata * buffer,unsigned int size)
336 {
337 1 unsigned char StartPage;
338 1 unsigned char PrePage;
339 1
340 1 /* if send is already running */
341 1 if(InSending == TRUE)
342 1 return FALSE;
343 1 else
344 1 InSending = TRUE;
345 1 /* store page */
346 1 PrePage = ReadReg(CR);
347 1
348 1 /* check pakcet size */
349 1 if(size < MIN_PACKET_SIZE)
350 1 {
351 2 size = MIN_PACKET_SIZE;
352 2 }
353 1 else
354 1 {
355 2 if(size > MAX_PACKET_SIZE)
356 2 size = MAX_PACKET_SIZE;
357 2 }
358 1
359 1 /* write packet to ram */
360 1 if(LastSendStartPage == SEND_START_PAGE0)
361 1 {
362 2 StartPage = SEND_START_PAGE1;
363 2 LastSendStartPage = SEND_START_PAGE1;
C51 COMPILER V7.06 RTL8019 07/24/2007 16:39:36 PAGE 7
364 2 }
365 1 else
366 1 {
367 2 StartPage = SEND_START_PAGE0;
368 2 LastSendStartPage = SEND_START_PAGE0;
369 2 }
370 1 RTLWriteRam((unsigned int)(((unsigned int)StartPage)<<8),size,buffer);
371 1
372 1 /* wait for last time trasmition to complete */
373 1 while((ReadReg(CR) & CR_TXP) == CR_TXP);
374 1
375 1 /* write trasmit start page and size */
376 1 RTLPage(0);
377 1 WriteReg(TPSR_WPAGE0,StartPage); /* TPSR */
378 1 WriteReg(TBCRL_WPAGE0,(unsigned char)size);/*low */
379 1 WriteReg(TBCRH_WPAGE0,(unsigned char)((size>>8)&0x00ff)); /*high*/
380 1 WriteReg(CR,((PrePage&0xC0) | CR_ABORT_COMPLETE_DMA | CR_TXP | CR_START_COMMAND));
381 1
382 1 InSending = FALSE;
383 1 return TRUE;
384 1 }
385
386 /* call this function to receive a ethernet packet from RTL8019.
387 return value:
388 NULL: no packet can receive yet.
389 not NULL:
390 a address point to MemHead. This Head contain merory
391 Imformation(memory start address, memory end address ...) of
392 received packet. Memory is allocated by function 'MemAllocate(unsigned int size)'.
393 a example of struct SMemHead is:
394
395 struct SMemHead
396 {
397 unsigned char used; // if in using
398 unsigned char xdata *pStart; // the start address of memory
399 unsigned char xdata *pEnd;
400 };
401
402 You can use your own struct SMemHead and MemAllocat function in your project.
403 */
404 struct SMemHead xdata * RTLReceivePacket() reentrant
405 {
406 1 unsigned char curr,bnry;
407 1 unsigned int address;
408 1 unsigned int PacketSize;
409 1 struct SMemHead xdata *MemHead;
410 1
411 1 /* if send is running don't crrupt RTL register*/
412 1 if(InSending == TRUE)
413 1 return NULL;
414 1
415 1 MemHead = NULL;
416 1
417 1 RTLPage(1);
418 1 curr = ReadReg(CURR_RPAGE1);
419 1 RTLPage(0);
420 1
421 1 /* check if startpage exceed range becasue of unknow error */
422 1 if(StartPageOfPacket >= RECEIVE_STOP_PAGE || StartPageOfPacket < RECEIVE_START_PAGE)
423 1 {
424 2 /* use curr as the StartPageOfPacket in this case */
425 2 StartPageOfPacket = curr;
C51 COMPILER V7.06 RTL8019 07/24/2007 16:39:36 PAGE 8
426 2 return NULL;
427 2 }
428 1
429 1 /* check if there is packets to read */
430 1 if(StartPageOfPacket == curr)
431 1 return NULL;
432 1
433 1 /*
434 1 * read a packet
435 1 */
436 1
437 1 /* read packet head imformation */
438 1 address = ((unsigned int)StartPageOfPacket)<<8;
439 1 RTLReadRam(address,4,Head);
440 1
441 1 /* check rsr, if isn't a good packet no read */
442 1 if(Head[0] & RSR_RECEIVE_NO_ERROR)
443 1 {
444 2 /* this is a good packet */
445 2
446 2 /* packet size, sub 4 bytes, this 4 byte is MAC checksum */
447 2 PacketSize = ((unsigned int)Head[3])*256 + Head[2] - 4;
448 2
449 2 /* allocate buffer and read packet into buffer */
450 2 if((MemHead = MemAllocate(PacketSize)) != NULL)
451 2 {
452 3 /* if packet is put from bnry+1 to receive_stop_page and receive
453 3 start page to next packet startpage, that is if bnry+1 > next
454 3 packet start page and next start page != receive_start_page,
455 3 we need read by two times. the first time from bnry+1 to receive
456 3 _stop_page, the second time from receive start page to next packet
457 3 startpage.
458 3 */
459 3 address += 4;
460 3 if(StartPageOfPacket > Head[1] && Head[1] != RECEIVE_START_PAGE)
461 3 {
462 4 RTLReadRam(address,(unsigned int)((((unsigned int)RECEIVE_STOP_PAGE)<<8) - address),MemHead->pStart);
-/* read from rtl */
463 4 RTLReadRam((unsigned int)(((unsigned int)RECEIVE_START_PAGE)<<8),(unsigned int)(PacketSize - ((((unsig
-ned int)RECEIVE_STOP_PAGE)<<8) - address)),
464 4 MemHead->pStart + ((((unsigned int)RECEIVE_STOP_PAGE)<<8) - address)); /* read from rtl */
465 4 }
466 3 else
467 3 {
468 4 RTLReadRam(address,PacketSize,MemHead->pStart); /* read from rtl */
469 4 }
470 3
471 3 }
472 2 }
473 1
474 1 /* get next packet start page */
475 1 StartPageOfPacket = Head[1];
476 1
477 1 /* reset bnry */
478 1 bnry = StartPageOfPacket - 1;
479 1 if(bnry < RECEIVE_START_PAGE)
480 1 bnry = RECEIVE_STOP_PAGE - 1;
481 1 WriteReg(BNRY_WPAGE0,bnry);
482 1
483 1 return MemHead;
484 1 }
485
C51 COMPILER V7.06 RTL8019 07/24/2007 16:39:36 PAGE 9
486
487 void RTL8019SendPacketTest()
488 {
489 1 /* send a arp request packet, src ip = 192.168.2.13, dest ip = 192.168.2.14,
490 1 if you config your computer's ip as 192.168.2.14, then after run this function,
491 1 your computer will receive the packet, and when you type "arp -a" in windows
492 1 command window(dos window) you will see a arp entry of 52 54 4c 30 2e 2f.
493 1 this indicate a packet has been successful sent
494 1 */
495 1 /* this is a arp broad cast packet */
496 1 //Dest MAC
497 1 TestPacket[0] = 0xff;
498 1 TestPacket[1] = 0xff;
499 1 TestPacket[2] = 0xff;
500 1 TestPacket[3] = 0xff;
501 1 TestPacket[4] = 0xff;
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