2 * Wavelan Pcmcia driver
6 * Reorganisation and extension of the driver.
7 * Original copyright follow. See wavelan_cs.p.h for details.
9 * This code is derived from Anthony D. Joseph's code and all the changes here
10 * are also under the original copyright below.
12 * This code supports version 2.00 of WaveLAN/PCMCIA cards (2.4GHz), and
13 * can work on Linux 2.0.36 with support of David Hinds' PCMCIA Card Services
15 * Joe Finney (joe@comp.lancs.ac.uk) at Lancaster University in UK added
16 * critical code in the routine to initialize the Modem Management Controller.
18 * Thanks to Alan Cox and Bruce Janson for their advice.
20 * -- Yunzhou Li (scip4166@nus.sg)
22 #ifdef WAVELAN_ROAMING
23 * Roaming support added 07/22/98 by Justin Seger (jseger@media.mit.edu)
24 * based on patch by Joe Finney from Lancaster University.
27 * Lucent (formerly AT&T GIS, formerly NCR) WaveLAN PCMCIA card: An
28 * Ethernet-like radio transceiver controlled by an Intel 82593 coprocessor.
30 * A non-shared memory PCMCIA ethernet driver for linux
32 * ISA version modified to support PCMCIA by Anthony Joseph (adj@lcs.mit.edu)
35 * Joseph O'Sullivan & John Langford (josullvn@cs.cmu.edu & jcl@cs.cmu.edu)
37 * Apr 2 '98 made changes to bring the i82593 control/int handling in line
38 * with offical specs...
40 ****************************************************************************
43 * Massachusetts Institute of Technology
45 * Permission to use, copy, modify, and distribute this program
46 * for any purpose and without fee is hereby granted, provided
47 * that this copyright and permission notice appear on all copies
48 * and supporting documentation, the name of M.I.T. not be used
49 * in advertising or publicity pertaining to distribution of the
50 * program without specific prior permission, and notice be given
51 * in supporting documentation that copying and distribution is
52 * by permission of M.I.T. M.I.T. makes no representations about
53 * the suitability of this software for any purpose. It is pro-
54 * vided "as is" without express or implied warranty.
55 ****************************************************************************
59 /* Do *NOT* add other headers here, you are guaranteed to be wrong - Jean II */
60 #include "wavelan_cs.p.h" /* Private header */
62 #ifdef WAVELAN_ROAMING
63 static void wl_cell_expiry(unsigned long data);
64 static void wl_del_wavepoint(wavepoint_history *wavepoint, struct net_local *lp);
65 static void wv_nwid_filter(unsigned char mode, net_local *lp);
66 #endif /* WAVELAN_ROAMING */
68 /************************* MISC SUBROUTINES **************************/
70 * Subroutines which won't fit in one of the following category
71 * (wavelan modem or i82593)
74 /******************* MODEM MANAGEMENT SUBROUTINES *******************/
76 * Useful subroutines to manage the modem of the wavelan
79 /*------------------------------------------------------------------*/
81 * Read from card's Host Adaptor Status Register.
84 hasr_read(u_long base)
86 return(inb(HASR(base)));
89 /*------------------------------------------------------------------*/
91 * Write to card's Host Adapter Command Register.
94 hacr_write(u_long base,
97 outb(hacr, HACR(base));
100 /*------------------------------------------------------------------*/
102 * Write to card's Host Adapter Command Register. Include a delay for
103 * those times when it is needed.
106 hacr_write_slow(u_long base,
109 hacr_write(base, hacr);
110 /* delay might only be needed sometimes */
112 } /* hacr_write_slow */
114 /*------------------------------------------------------------------*/
116 * Read the Parameter Storage Area from the WaveLAN card's memory
119 psa_read(struct net_device * dev,
120 int o, /* offset in PSA */
121 u_char * b, /* buffer to fill */
122 int n) /* size to read */
124 net_local *lp = netdev_priv(dev);
125 u_char __iomem *ptr = lp->mem + PSA_ADDR + (o << 1);
130 /* Due to a lack of address decode pins, the WaveLAN PCMCIA card
131 * only supports reading even memory addresses. That means the
132 * increment here MUST be two.
133 * Because of that, we can't use memcpy_fromio()...
139 /*------------------------------------------------------------------*/
141 * Write the Parameter Storage Area to the WaveLAN card's memory
144 psa_write(struct net_device * dev,
145 int o, /* Offset in psa */
146 u_char * b, /* Buffer in memory */
147 int n) /* Length of buffer */
149 net_local *lp = netdev_priv(dev);
150 u_char __iomem *ptr = lp->mem + PSA_ADDR + (o << 1);
152 unsigned int base = dev->base_addr;
153 /* As there seem to have no flag PSA_BUSY as in the ISA model, we are
154 * oblige to verify this address to know when the PSA is ready... */
155 volatile u_char __iomem *verify = lp->mem + PSA_ADDR +
156 (psaoff(0, psa_comp_number) << 1);
158 /* Authorize writing to PSA */
159 hacr_write(base, HACR_PWR_STAT | HACR_ROM_WEN);
167 /* I don't have the spec, so I don't know what the correct
168 * sequence to write is. This hack seem to work for me... */
170 while((readb(verify) != PSA_COMP_PCMCIA_915) && (count++ < 100))
174 /* Put the host interface back in standard state */
175 hacr_write(base, HACR_DEFAULT);
179 /*------------------------------------------------------------------*/
181 * Calculate the PSA CRC
182 * Thanks to Valster, Nico <NVALSTER@wcnd.nl.lucent.com> for the code
183 * NOTE: By specifying a length including the CRC position the
184 * returned value should be zero. (i.e. a correct checksum in the PSA)
186 * The Windows drivers don't use the CRC, but the AP and the PtP tool
190 psa_crc(unsigned char * psa, /* The PSA */
191 int size) /* Number of short for CRC */
193 int byte_cnt; /* Loop on the PSA */
194 u_short crc_bytes = 0; /* Data in the PSA */
195 int bit_cnt; /* Loop on the bits of the short */
197 for(byte_cnt = 0; byte_cnt < size; byte_cnt++ )
199 crc_bytes ^= psa[byte_cnt]; /* Its an xor */
201 for(bit_cnt = 1; bit_cnt < 9; bit_cnt++ )
203 if(crc_bytes & 0x0001)
204 crc_bytes = (crc_bytes >> 1) ^ 0xA001;
212 #endif /* SET_PSA_CRC */
214 /*------------------------------------------------------------------*/
216 * update the checksum field in the Wavelan's PSA
219 update_psa_checksum(struct net_device * dev)
225 /* read the parameter storage area */
226 psa_read(dev, 0, (unsigned char *) &psa, sizeof(psa));
228 /* update the checksum */
229 crc = psa_crc((unsigned char *) &psa,
230 sizeof(psa) - sizeof(psa.psa_crc[0]) - sizeof(psa.psa_crc[1])
231 - sizeof(psa.psa_crc_status));
233 psa.psa_crc[0] = crc & 0xFF;
234 psa.psa_crc[1] = (crc & 0xFF00) >> 8;
237 psa_write(dev, (char *)&psa.psa_crc - (char *)&psa,
238 (unsigned char *)&psa.psa_crc, 2);
240 #ifdef DEBUG_IOCTL_INFO
241 printk (KERN_DEBUG "%s: update_psa_checksum(): crc = 0x%02x%02x\n",
242 dev->name, psa.psa_crc[0], psa.psa_crc[1]);
244 /* Check again (luxury !) */
245 crc = psa_crc((unsigned char *) &psa,
246 sizeof(psa) - sizeof(psa.psa_crc_status));
249 printk(KERN_WARNING "%s: update_psa_checksum(): CRC does not agree with PSA data (even after recalculating)\n", dev->name);
250 #endif /* DEBUG_IOCTL_INFO */
251 #endif /* SET_PSA_CRC */
252 } /* update_psa_checksum */
254 /*------------------------------------------------------------------*/
256 * Write 1 byte to the MMC.
265 /* Wait for MMC to go idle */
266 while((count++ < 100) && (inb(HASR(base)) & HASR_MMI_BUSY))
269 outb((u_char)((o << 1) | MMR_MMI_WR), MMR(base));
273 /*------------------------------------------------------------------*/
275 * Routine to write bytes to the Modem Management Controller.
276 * We start by the end because it is the way it should be !
279 mmc_write(u_long base,
288 mmc_out(base, --o, *(--b));
291 /*------------------------------------------------------------------*/
293 * Read 1 byte from the MMC.
294 * Optimised version for 1 byte, avoid using memory...
302 while((count++ < 100) && (inb(HASR(base)) & HASR_MMI_BUSY))
304 outb(o << 1, MMR(base)); /* Set the read address */
306 outb(0, MMD(base)); /* Required dummy write */
308 while((count++ < 100) && (inb(HASR(base)) & HASR_MMI_BUSY))
310 return (u_char) (inb(MMD(base))); /* Now do the actual read */
313 /*------------------------------------------------------------------*/
315 * Routine to read bytes from the Modem Management Controller.
316 * The implementation is complicated by a lack of address lines,
317 * which prevents decoding of the low-order bit.
318 * (code has just been moved in the above function)
319 * We start by the end because it is the way it should be !
322 mmc_read(u_long base,
331 *(--b) = mmc_in(base, --o);
334 /*------------------------------------------------------------------*/
336 * Get the type of encryption available...
339 mmc_encr(u_long base) /* i/o port of the card */
343 temp = mmc_in(base, mmroff(0, mmr_des_avail));
344 if((temp != MMR_DES_AVAIL_DES) && (temp != MMR_DES_AVAIL_AES))
350 /*------------------------------------------------------------------*/
352 * Wait for the frequency EEprom to complete a command...
355 fee_wait(u_long base, /* i/o port of the card */
356 int delay, /* Base delay to wait for */
357 int number) /* Number of time to wait */
359 int count = 0; /* Wait only a limited time */
361 while((count++ < number) &&
362 (mmc_in(base, mmroff(0, mmr_fee_status)) & MMR_FEE_STATUS_BUSY))
366 /*------------------------------------------------------------------*/
368 * Read bytes from the Frequency EEprom (frequency select cards).
371 fee_read(u_long base, /* i/o port of the card */
372 u_short o, /* destination offset */
373 u_short * b, /* data buffer */
374 int n) /* number of registers */
376 b += n; /* Position at the end of the area */
378 /* Write the address */
379 mmc_out(base, mmwoff(0, mmw_fee_addr), o + n - 1);
381 /* Loop on all buffer */
384 /* Write the read command */
385 mmc_out(base, mmwoff(0, mmw_fee_ctrl), MMW_FEE_CTRL_READ);
387 /* Wait until EEprom is ready (should be quick !) */
388 fee_wait(base, 10, 100);
391 *--b = ((mmc_in(base, mmroff(0, mmr_fee_data_h)) << 8) |
392 mmc_in(base, mmroff(0, mmr_fee_data_l)));
397 /*------------------------------------------------------------------*/
399 * Write bytes from the Frequency EEprom (frequency select cards).
400 * This is a bit complicated, because the frequency eeprom has to
401 * be unprotected and the write enabled.
405 fee_write(u_long base, /* i/o port of the card */
406 u_short o, /* destination offset */
407 u_short * b, /* data buffer */
408 int n) /* number of registers */
410 b += n; /* Position at the end of the area */
412 #ifdef EEPROM_IS_PROTECTED /* disabled */
413 #ifdef DOESNT_SEEM_TO_WORK /* disabled */
414 /* Ask to read the protected register */
415 mmc_out(base, mmwoff(0, mmw_fee_ctrl), MMW_FEE_CTRL_PRREAD);
417 fee_wait(base, 10, 100);
419 /* Read the protected register */
420 printk("Protected 2 : %02X-%02X\n",
421 mmc_in(base, mmroff(0, mmr_fee_data_h)),
422 mmc_in(base, mmroff(0, mmr_fee_data_l)));
423 #endif /* DOESNT_SEEM_TO_WORK */
425 /* Enable protected register */
426 mmc_out(base, mmwoff(0, mmw_fee_addr), MMW_FEE_ADDR_EN);
427 mmc_out(base, mmwoff(0, mmw_fee_ctrl), MMW_FEE_CTRL_PREN);
429 fee_wait(base, 10, 100);
432 mmc_out(base, mmwoff(0, mmw_fee_addr), o + n);
433 mmc_out(base, mmwoff(0, mmw_fee_ctrl), MMW_FEE_CTRL_PRWRITE);
434 #ifdef DOESNT_SEEM_TO_WORK /* disabled */
436 mmc_out(base, mmwoff(0, mmw_fee_ctrl), MMW_FEE_CTRL_PRCLEAR);
437 #endif /* DOESNT_SEEM_TO_WORK */
439 fee_wait(base, 10, 100);
440 #endif /* EEPROM_IS_PROTECTED */
443 mmc_out(base, mmwoff(0, mmw_fee_addr), MMW_FEE_ADDR_EN);
444 mmc_out(base, mmwoff(0, mmw_fee_ctrl), MMW_FEE_CTRL_WREN);
446 fee_wait(base, 10, 100);
448 /* Write the EEprom address */
449 mmc_out(base, mmwoff(0, mmw_fee_addr), o + n - 1);
451 /* Loop on all buffer */
454 /* Write the value */
455 mmc_out(base, mmwoff(0, mmw_fee_data_h), (*--b) >> 8);
456 mmc_out(base, mmwoff(0, mmw_fee_data_l), *b & 0xFF);
458 /* Write the write command */
459 mmc_out(base, mmwoff(0, mmw_fee_ctrl), MMW_FEE_CTRL_WRITE);
461 /* Wavelan doc says : wait at least 10 ms for EEBUSY = 0 */
463 fee_wait(base, 10, 100);
467 mmc_out(base, mmwoff(0, mmw_fee_addr), MMW_FEE_ADDR_DS);
468 mmc_out(base, mmwoff(0, mmw_fee_ctrl), MMW_FEE_CTRL_WDS);
470 fee_wait(base, 10, 100);
472 #ifdef EEPROM_IS_PROTECTED /* disabled */
473 /* Reprotect EEprom */
474 mmc_out(base, mmwoff(0, mmw_fee_addr), 0x00);
475 mmc_out(base, mmwoff(0, mmw_fee_ctrl), MMW_FEE_CTRL_PRWRITE);
477 fee_wait(base, 10, 100);
478 #endif /* EEPROM_IS_PROTECTED */
481 /******************* WaveLAN Roaming routines... ********************/
483 #ifdef WAVELAN_ROAMING /* Conditional compile, see wavelan_cs.h */
485 static unsigned char WAVELAN_BEACON_ADDRESS[] = {0x09,0x00,0x0e,0x20,0x03,0x00};
487 static void wv_roam_init(struct net_device *dev)
489 net_local *lp= netdev_priv(dev);
491 /* Do not remove this unless you have a good reason */
492 printk(KERN_NOTICE "%s: Warning, you have enabled roaming on"
493 " device %s !\n", dev->name, dev->name);
494 printk(KERN_NOTICE "Roaming is currently an experimental unsupported feature"
495 " of the Wavelan driver.\n");
496 printk(KERN_NOTICE "It may work, but may also make the driver behave in"
497 " erratic ways or crash.\n");
499 lp->wavepoint_table.head=NULL; /* Initialise WavePoint table */
500 lp->wavepoint_table.num_wavepoints=0;
501 lp->wavepoint_table.locked=0;
502 lp->curr_point=NULL; /* No default WavePoint */
505 lp->cell_timer.data=(long)lp; /* Start cell expiry timer */
506 lp->cell_timer.function=wl_cell_expiry;
507 lp->cell_timer.expires=jiffies+CELL_TIMEOUT;
508 add_timer(&lp->cell_timer);
510 wv_nwid_filter(NWID_PROMISC,lp) ; /* Enter NWID promiscuous mode */
511 /* to build up a good WavePoint */
513 printk(KERN_DEBUG "WaveLAN: Roaming enabled on device %s\n",dev->name);
516 static void wv_roam_cleanup(struct net_device *dev)
518 wavepoint_history *ptr,*old_ptr;
519 net_local *lp= netdev_priv(dev);
521 printk(KERN_DEBUG "WaveLAN: Roaming Disabled on device %s\n",dev->name);
523 /* Fixme : maybe we should check that the timer exist before deleting it */
524 del_timer(&lp->cell_timer); /* Remove cell expiry timer */
525 ptr=lp->wavepoint_table.head; /* Clear device's WavePoint table */
530 wl_del_wavepoint(old_ptr,lp);
534 /* Enable/Disable NWID promiscuous mode on a given device */
535 static void wv_nwid_filter(unsigned char mode, net_local *lp)
540 #ifdef WAVELAN_ROAMING_DEBUG
541 printk(KERN_DEBUG "WaveLAN: NWID promisc %s, device %s\n",(mode==NWID_PROMISC) ? "on" : "off", lp->dev->name);
544 /* Disable interrupts & save flags */
545 spin_lock_irqsave(&lp->spinlock, flags);
547 m.w.mmw_loopt_sel = (mode==NWID_PROMISC) ? MMW_LOOPT_SEL_DIS_NWID : 0x00;
548 mmc_write(lp->dev->base_addr, (char *)&m.w.mmw_loopt_sel - (char *)&m, (unsigned char *)&m.w.mmw_loopt_sel, 1);
550 if(mode==NWID_PROMISC)
555 /* ReEnable interrupts & restore flags */
556 spin_unlock_irqrestore(&lp->spinlock, flags);
559 /* Find a record in the WavePoint table matching a given NWID */
560 static wavepoint_history *wl_roam_check(unsigned short nwid, net_local *lp)
562 wavepoint_history *ptr=lp->wavepoint_table.head;
572 /* Create a new wavepoint table entry */
573 static wavepoint_history *wl_new_wavepoint(unsigned short nwid, unsigned char seq, net_local* lp)
575 wavepoint_history *new_wavepoint;
577 #ifdef WAVELAN_ROAMING_DEBUG
578 printk(KERN_DEBUG "WaveLAN: New Wavepoint, NWID:%.4X\n",nwid);
581 if(lp->wavepoint_table.num_wavepoints==MAX_WAVEPOINTS)
584 new_wavepoint = kmalloc(sizeof(wavepoint_history),GFP_ATOMIC);
585 if(new_wavepoint==NULL)
588 new_wavepoint->nwid=nwid; /* New WavePoints NWID */
589 new_wavepoint->average_fast=0; /* Running Averages..*/
590 new_wavepoint->average_slow=0;
591 new_wavepoint->qualptr=0; /* Start of ringbuffer */
592 new_wavepoint->last_seq=seq-1; /* Last sequence no.seen */
593 memset(new_wavepoint->sigqual,0,WAVEPOINT_HISTORY);/* Empty ringbuffer */
595 new_wavepoint->next=lp->wavepoint_table.head;/* Add to wavepoint table */
596 new_wavepoint->prev=NULL;
598 if(lp->wavepoint_table.head!=NULL)
599 lp->wavepoint_table.head->prev=new_wavepoint;
601 lp->wavepoint_table.head=new_wavepoint;
603 lp->wavepoint_table.num_wavepoints++; /* no. of visible wavepoints */
605 return new_wavepoint;
608 /* Remove a wavepoint entry from WavePoint table */
609 static void wl_del_wavepoint(wavepoint_history *wavepoint, struct net_local *lp)
614 if(lp->curr_point==wavepoint)
617 if(wavepoint->prev!=NULL)
618 wavepoint->prev->next=wavepoint->next;
620 if(wavepoint->next!=NULL)
621 wavepoint->next->prev=wavepoint->prev;
623 if(lp->wavepoint_table.head==wavepoint)
624 lp->wavepoint_table.head=wavepoint->next;
626 lp->wavepoint_table.num_wavepoints--;
630 /* Timer callback function - checks WavePoint table for stale entries */
631 static void wl_cell_expiry(unsigned long data)
633 net_local *lp=(net_local *)data;
634 wavepoint_history *wavepoint=lp->wavepoint_table.head,*old_point;
636 #if WAVELAN_ROAMING_DEBUG > 1
637 printk(KERN_DEBUG "WaveLAN: Wavepoint timeout, dev %s\n",lp->dev->name);
640 if(lp->wavepoint_table.locked)
642 #if WAVELAN_ROAMING_DEBUG > 1
643 printk(KERN_DEBUG "WaveLAN: Wavepoint table locked...\n");
646 lp->cell_timer.expires=jiffies+1; /* If table in use, come back later */
647 add_timer(&lp->cell_timer);
651 while(wavepoint!=NULL)
653 if(time_after(jiffies, wavepoint->last_seen + CELL_TIMEOUT))
655 #ifdef WAVELAN_ROAMING_DEBUG
656 printk(KERN_DEBUG "WaveLAN: Bye bye %.4X\n",wavepoint->nwid);
660 wavepoint=wavepoint->next;
661 wl_del_wavepoint(old_point,lp);
664 wavepoint=wavepoint->next;
666 lp->cell_timer.expires=jiffies+CELL_TIMEOUT;
667 add_timer(&lp->cell_timer);
670 /* Update SNR history of a wavepoint */
671 static void wl_update_history(wavepoint_history *wavepoint, unsigned char sigqual, unsigned char seq)
673 int i=0,num_missed=0,ptr=0;
674 int average_fast=0,average_slow=0;
676 num_missed=(seq-wavepoint->last_seq)%WAVEPOINT_HISTORY;/* Have we missed
679 for(i=0;i<num_missed;i++)
681 wavepoint->sigqual[wavepoint->qualptr++]=0; /* If so, enter them as 0's */
682 wavepoint->qualptr %=WAVEPOINT_HISTORY; /* in the ringbuffer. */
684 wavepoint->last_seen=jiffies; /* Add beacon to history */
685 wavepoint->last_seq=seq;
686 wavepoint->sigqual[wavepoint->qualptr++]=sigqual;
687 wavepoint->qualptr %=WAVEPOINT_HISTORY;
688 ptr=(wavepoint->qualptr-WAVEPOINT_FAST_HISTORY+WAVEPOINT_HISTORY)%WAVEPOINT_HISTORY;
690 for(i=0;i<WAVEPOINT_FAST_HISTORY;i++) /* Update running averages */
692 average_fast+=wavepoint->sigqual[ptr++];
693 ptr %=WAVEPOINT_HISTORY;
696 average_slow=average_fast;
697 for(i=WAVEPOINT_FAST_HISTORY;i<WAVEPOINT_HISTORY;i++)
699 average_slow+=wavepoint->sigqual[ptr++];
700 ptr %=WAVEPOINT_HISTORY;
703 wavepoint->average_fast=average_fast/WAVEPOINT_FAST_HISTORY;
704 wavepoint->average_slow=average_slow/WAVEPOINT_HISTORY;
707 /* Perform a handover to a new WavePoint */
708 static void wv_roam_handover(wavepoint_history *wavepoint, net_local *lp)
710 unsigned int base = lp->dev->base_addr;
714 if(wavepoint==lp->curr_point) /* Sanity check... */
716 wv_nwid_filter(!NWID_PROMISC,lp);
720 #ifdef WAVELAN_ROAMING_DEBUG
721 printk(KERN_DEBUG "WaveLAN: Doing handover to %.4X, dev %s\n",wavepoint->nwid,lp->dev->name);
724 /* Disable interrupts & save flags */
725 spin_lock_irqsave(&lp->spinlock, flags);
727 m.w.mmw_netw_id_l = wavepoint->nwid & 0xFF;
728 m.w.mmw_netw_id_h = (wavepoint->nwid & 0xFF00) >> 8;
730 mmc_write(base, (char *)&m.w.mmw_netw_id_l - (char *)&m, (unsigned char *)&m.w.mmw_netw_id_l, 2);
732 /* ReEnable interrupts & restore flags */
733 spin_unlock_irqrestore(&lp->spinlock, flags);
735 wv_nwid_filter(!NWID_PROMISC,lp);
736 lp->curr_point=wavepoint;
739 /* Called when a WavePoint beacon is received */
740 static void wl_roam_gather(struct net_device * dev,
741 u_char * hdr, /* Beacon header */
742 u_char * stats) /* SNR, Signal quality
745 wavepoint_beacon *beacon= (wavepoint_beacon *)hdr; /* Rcvd. Beacon */
746 unsigned short nwid=ntohs(beacon->nwid);
747 unsigned short sigqual=stats[2] & MMR_SGNL_QUAL; /* SNR of beacon */
748 wavepoint_history *wavepoint=NULL; /* WavePoint table entry */
749 net_local *lp = netdev_priv(dev); /* Device info */
751 #ifdef I_NEED_THIS_FEATURE
752 /* Some people don't need this, some other may need it */
753 nwid=nwid^ntohs(beacon->domain_id);
756 #if WAVELAN_ROAMING_DEBUG > 1
757 printk(KERN_DEBUG "WaveLAN: beacon, dev %s:\n",dev->name);
758 printk(KERN_DEBUG "Domain: %.4X NWID: %.4X SigQual=%d\n",ntohs(beacon->domain_id),nwid,sigqual);
761 lp->wavepoint_table.locked=1; /* <Mutex> */
763 wavepoint=wl_roam_check(nwid,lp); /* Find WavePoint table entry */
764 if(wavepoint==NULL) /* If no entry, Create a new one... */
766 wavepoint=wl_new_wavepoint(nwid,beacon->seq,lp);
770 if(lp->curr_point==NULL) /* If this is the only WavePoint, */
771 wv_roam_handover(wavepoint, lp); /* Jump on it! */
773 wl_update_history(wavepoint, sigqual, beacon->seq); /* Update SNR history
776 if(lp->curr_point->average_slow < SEARCH_THRESH_LOW) /* If our current */
777 if(!lp->cell_search) /* WavePoint is getting faint, */
778 wv_nwid_filter(NWID_PROMISC,lp); /* start looking for a new one */
780 if(wavepoint->average_slow >
781 lp->curr_point->average_slow + WAVELAN_ROAMING_DELTA)
782 wv_roam_handover(wavepoint, lp); /* Handover to a better WavePoint */
784 if(lp->curr_point->average_slow > SEARCH_THRESH_HIGH) /* If our SNR is */
785 if(lp->cell_search) /* getting better, drop out of cell search mode */
786 wv_nwid_filter(!NWID_PROMISC,lp);
789 lp->wavepoint_table.locked=0; /* </MUTEX> :-) */
792 /* Test this MAC frame a WavePoint beacon */
793 static inline int WAVELAN_BEACON(unsigned char *data)
795 wavepoint_beacon *beacon= (wavepoint_beacon *)data;
796 static const wavepoint_beacon beacon_template={0xaa,0xaa,0x03,0x08,0x00,0x0e,0x20,0x03,0x00};
798 if(memcmp(beacon,&beacon_template,9)==0)
803 #endif /* WAVELAN_ROAMING */
805 /************************ I82593 SUBROUTINES *************************/
807 * Useful subroutines to manage the Ethernet controller
810 /*------------------------------------------------------------------*/
812 * Routine to synchronously send a command to the i82593 chip.
813 * Should be called with interrupts disabled.
814 * (called by wv_packet_write(), wv_ru_stop(), wv_ru_start(),
815 * wv_82593_config() & wv_diag())
818 wv_82593_cmd(struct net_device * dev,
823 unsigned int base = dev->base_addr;
828 /* Spin until the chip finishes executing its current command (if any) */
832 /* Time calibration of the loop */
835 /* Read the interrupt register */
836 outb(OP0_NOP | CR0_STATUS_3, LCCR(base));
837 status = inb(LCSR(base));
839 while(((status & SR3_EXEC_STATE_MASK) != SR3_EXEC_IDLE) && (spin-- > 0));
841 /* If the interrupt hasn't been posted */
843 #ifdef DEBUG_INTERRUPT_ERROR
844 printk(KERN_INFO "wv_82593_cmd: %s timeout (previous command), status 0x%02x\n",
850 /* Issue the command to the controller */
851 outb(cmd, LCCR(base));
853 /* If we don't have to check the result of the command
854 * Note : this mean that the irq handler will deal with that */
855 if(result == SR0_NO_RESULT)
858 /* We are waiting for command completion */
859 wait_completed = TRUE;
861 /* Busy wait while the LAN controller executes the command. */
865 /* Time calibration of the loop */
868 /* Read the interrupt register */
869 outb(CR0_STATUS_0 | OP0_NOP, LCCR(base));
870 status = inb(LCSR(base));
872 /* Check if there was an interrupt posted */
873 if((status & SR0_INTERRUPT))
875 /* Acknowledge the interrupt */
876 outb(CR0_INT_ACK | OP0_NOP, LCCR(base));
878 /* Check if interrupt is a command completion */
879 if(((status & SR0_BOTH_RX_TX) != SR0_BOTH_RX_TX) &&
880 ((status & SR0_BOTH_RX_TX) != 0x0) &&
881 !(status & SR0_RECEPTION))
883 /* Signal command completion */
884 wait_completed = FALSE;
888 /* Note : Rx interrupts will be handled later, because we can
889 * handle multiple Rx packets at once */
890 #ifdef DEBUG_INTERRUPT_INFO
891 printk(KERN_INFO "wv_82593_cmd: not our interrupt\n");
896 while(wait_completed && (spin-- > 0));
898 /* If the interrupt hasn't be posted */
901 #ifdef DEBUG_INTERRUPT_ERROR
902 printk(KERN_INFO "wv_82593_cmd: %s timeout, status 0x%02x\n",
908 /* Check the return code returned by the card (see above) against
909 * the expected return code provided by the caller */
910 if((status & SR0_EVENT_MASK) != result)
912 #ifdef DEBUG_INTERRUPT_ERROR
913 printk(KERN_INFO "wv_82593_cmd: %s failed, status = 0x%x\n",
922 /*------------------------------------------------------------------*/
924 * This routine does a 593 op-code number 7, and obtains the diagnose
925 * status for the WaveLAN.
928 wv_diag(struct net_device * dev)
930 return(wv_82593_cmd(dev, "wv_diag(): diagnose",
931 OP0_DIAGNOSE, SR0_DIAGNOSE_PASSED));
934 /*------------------------------------------------------------------*/
936 * Routine to read len bytes from the i82593's ring buffer, starting at
937 * chip address addr. The results read from the chip are stored in buf.
938 * The return value is the address to use for next the call.
941 read_ringbuf(struct net_device * dev,
946 unsigned int base = dev->base_addr;
949 char * buf_ptr = buf;
951 /* Get all the buffer */
954 /* Position the Program I/O Register at the ring buffer pointer */
955 outb(ring_ptr & 0xff, PIORL(base));
956 outb(((ring_ptr >> 8) & PIORH_MASK), PIORH(base));
958 /* First, determine how much we can read without wrapping around the
960 if((addr + len) < (RX_BASE + RX_SIZE))
963 chunk_len = RX_BASE + RX_SIZE - addr;
964 insb(PIOP(base), buf_ptr, chunk_len);
965 buf_ptr += chunk_len;
967 ring_ptr = (ring_ptr - RX_BASE + chunk_len) % RX_SIZE + RX_BASE;
972 /*------------------------------------------------------------------*/
974 * Reconfigure the i82593, or at least ask for it...
975 * Because wv_82593_config use the transmission buffer, we must do it
976 * when we are sure that there is no transmission, so we do it now
977 * or in wavelan_packet_xmit() (I can't find any better place,
978 * wavelan_interrupt is not an option...), so you may experience
979 * some delay sometime...
982 wv_82593_reconfig(struct net_device * dev)
984 net_local * lp = netdev_priv(dev);
985 struct pcmcia_device * link = lp->link;
988 /* Arm the flag, will be cleard in wv_82593_config() */
989 lp->reconfig_82593 = TRUE;
991 /* Check if we can do it now ! */
992 if((link->open) && (netif_running(dev)) && !(netif_queue_stopped(dev)))
994 spin_lock_irqsave(&lp->spinlock, flags); /* Disable interrupts */
995 wv_82593_config(dev);
996 spin_unlock_irqrestore(&lp->spinlock, flags); /* Re-enable interrupts */
1000 #ifdef DEBUG_IOCTL_INFO
1002 "%s: wv_82593_reconfig(): delayed (state = %lX, link = %d)\n",
1003 dev->name, dev->state, link->open);
1008 /********************* DEBUG & INFO SUBROUTINES *********************/
1010 * This routines are used in the code to show debug informations.
1011 * Most of the time, it dump the content of hardware structures...
1014 #ifdef DEBUG_PSA_SHOW
1015 /*------------------------------------------------------------------*/
1017 * Print the formatted contents of the Parameter Storage Area.
1020 wv_psa_show(psa_t * p)
1022 printk(KERN_DEBUG "##### wavelan psa contents: #####\n");
1023 printk(KERN_DEBUG "psa_io_base_addr_1: 0x%02X %02X %02X %02X\n",
1024 p->psa_io_base_addr_1,
1025 p->psa_io_base_addr_2,
1026 p->psa_io_base_addr_3,
1027 p->psa_io_base_addr_4);
1028 printk(KERN_DEBUG "psa_rem_boot_addr_1: 0x%02X %02X %02X\n",
1029 p->psa_rem_boot_addr_1,
1030 p->psa_rem_boot_addr_2,
1031 p->psa_rem_boot_addr_3);
1032 printk(KERN_DEBUG "psa_holi_params: 0x%02x, ", p->psa_holi_params);
1033 printk("psa_int_req_no: %d\n", p->psa_int_req_no);
1034 #ifdef DEBUG_SHOW_UNUSED
1035 printk(KERN_DEBUG "psa_unused0[]: %pM\n", p->psa_unused0);
1036 #endif /* DEBUG_SHOW_UNUSED */
1037 printk(KERN_DEBUG "psa_univ_mac_addr[]: %pM\n", p->psa_univ_mac_addr);
1038 printk(KERN_DEBUG "psa_local_mac_addr[]: %pM\n", p->psa_local_mac_addr);
1039 printk(KERN_DEBUG "psa_univ_local_sel: %d, ", p->psa_univ_local_sel);
1040 printk("psa_comp_number: %d, ", p->psa_comp_number);
1041 printk("psa_thr_pre_set: 0x%02x\n", p->psa_thr_pre_set);
1042 printk(KERN_DEBUG "psa_feature_select/decay_prm: 0x%02x, ",
1043 p->psa_feature_select);
1044 printk("psa_subband/decay_update_prm: %d\n", p->psa_subband);
1045 printk(KERN_DEBUG "psa_quality_thr: 0x%02x, ", p->psa_quality_thr);
1046 printk("psa_mod_delay: 0x%02x\n", p->psa_mod_delay);
1047 printk(KERN_DEBUG "psa_nwid: 0x%02x%02x, ", p->psa_nwid[0], p->psa_nwid[1]);
1048 printk("psa_nwid_select: %d\n", p->psa_nwid_select);
1049 printk(KERN_DEBUG "psa_encryption_select: %d, ", p->psa_encryption_select);
1050 printk("psa_encryption_key[]: %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x\n",
1051 p->psa_encryption_key[0],
1052 p->psa_encryption_key[1],
1053 p->psa_encryption_key[2],
1054 p->psa_encryption_key[3],
1055 p->psa_encryption_key[4],
1056 p->psa_encryption_key[5],
1057 p->psa_encryption_key[6],
1058 p->psa_encryption_key[7]);
1059 printk(KERN_DEBUG "psa_databus_width: %d\n", p->psa_databus_width);
1060 printk(KERN_DEBUG "psa_call_code/auto_squelch: 0x%02x, ",
1061 p->psa_call_code[0]);
1062 printk("psa_call_code[]: %02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X\n",
1063 p->psa_call_code[0],
1064 p->psa_call_code[1],
1065 p->psa_call_code[2],
1066 p->psa_call_code[3],
1067 p->psa_call_code[4],
1068 p->psa_call_code[5],
1069 p->psa_call_code[6],
1070 p->psa_call_code[7]);
1071 #ifdef DEBUG_SHOW_UNUSED
1072 printk(KERN_DEBUG "psa_reserved[]: %02X:%02X\n",
1074 p->psa_reserved[1]);
1075 #endif /* DEBUG_SHOW_UNUSED */
1076 printk(KERN_DEBUG "psa_conf_status: %d, ", p->psa_conf_status);
1077 printk("psa_crc: 0x%02x%02x, ", p->psa_crc[0], p->psa_crc[1]);
1078 printk("psa_crc_status: 0x%02x\n", p->psa_crc_status);
1080 #endif /* DEBUG_PSA_SHOW */
1082 #ifdef DEBUG_MMC_SHOW
1083 /*------------------------------------------------------------------*/
1085 * Print the formatted status of the Modem Management Controller.
1086 * This function need to be completed...
1089 wv_mmc_show(struct net_device * dev)
1091 unsigned int base = dev->base_addr;
1092 net_local * lp = netdev_priv(dev);
1096 if(hasr_read(base) & HASR_NO_CLK)
1098 printk(KERN_WARNING "%s: wv_mmc_show: modem not connected\n",
1103 spin_lock_irqsave(&lp->spinlock, flags);
1106 mmc_out(base, mmwoff(0, mmw_freeze), 1);
1107 mmc_read(base, 0, (u_char *)&m, sizeof(m));
1108 mmc_out(base, mmwoff(0, mmw_freeze), 0);
1110 /* Don't forget to update statistics */
1111 lp->wstats.discard.nwid += (m.mmr_wrong_nwid_h << 8) | m.mmr_wrong_nwid_l;
1113 spin_unlock_irqrestore(&lp->spinlock, flags);
1115 printk(KERN_DEBUG "##### wavelan modem status registers: #####\n");
1116 #ifdef DEBUG_SHOW_UNUSED
1117 printk(KERN_DEBUG "mmc_unused0[]: %02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X\n",
1126 #endif /* DEBUG_SHOW_UNUSED */
1127 printk(KERN_DEBUG "Encryption algorithm: %02X - Status: %02X\n",
1128 m.mmr_des_avail, m.mmr_des_status);
1129 #ifdef DEBUG_SHOW_UNUSED
1130 printk(KERN_DEBUG "mmc_unused1[]: %02X:%02X:%02X:%02X:%02X\n",
1136 #endif /* DEBUG_SHOW_UNUSED */
1137 printk(KERN_DEBUG "dce_status: 0x%x [%s%s%s%s]\n",
1139 (m.mmr_dce_status & MMR_DCE_STATUS_RX_BUSY) ? "energy detected,":"",
1140 (m.mmr_dce_status & MMR_DCE_STATUS_LOOPT_IND) ?
1141 "loop test indicated," : "",
1142 (m.mmr_dce_status & MMR_DCE_STATUS_TX_BUSY) ? "transmitter on," : "",
1143 (m.mmr_dce_status & MMR_DCE_STATUS_JBR_EXPIRED) ?
1144 "jabber timer expired," : "");
1145 printk(KERN_DEBUG "Dsp ID: %02X\n",
1147 #ifdef DEBUG_SHOW_UNUSED
1148 printk(KERN_DEBUG "mmc_unused2[]: %02X:%02X\n",
1151 #endif /* DEBUG_SHOW_UNUSED */
1152 printk(KERN_DEBUG "# correct_nwid: %d, # wrong_nwid: %d\n",
1153 (m.mmr_correct_nwid_h << 8) | m.mmr_correct_nwid_l,
1154 (m.mmr_wrong_nwid_h << 8) | m.mmr_wrong_nwid_l);
1155 printk(KERN_DEBUG "thr_pre_set: 0x%x [current signal %s]\n",
1156 m.mmr_thr_pre_set & MMR_THR_PRE_SET,
1157 (m.mmr_thr_pre_set & MMR_THR_PRE_SET_CUR) ? "above" : "below");
1158 printk(KERN_DEBUG "signal_lvl: %d [%s], ",
1159 m.mmr_signal_lvl & MMR_SIGNAL_LVL,
1160 (m.mmr_signal_lvl & MMR_SIGNAL_LVL_VALID) ? "new msg" : "no new msg");
1161 printk("silence_lvl: %d [%s], ", m.mmr_silence_lvl & MMR_SILENCE_LVL,
1162 (m.mmr_silence_lvl & MMR_SILENCE_LVL_VALID) ? "update done" : "no new update");
1163 printk("sgnl_qual: 0x%x [%s]\n", m.mmr_sgnl_qual & MMR_SGNL_QUAL,
1164 (m.mmr_sgnl_qual & MMR_SGNL_QUAL_ANT) ? "Antenna 1" : "Antenna 0");
1165 #ifdef DEBUG_SHOW_UNUSED
1166 printk(KERN_DEBUG "netw_id_l: %x\n", m.mmr_netw_id_l);
1167 #endif /* DEBUG_SHOW_UNUSED */
1169 #endif /* DEBUG_MMC_SHOW */
1171 #ifdef DEBUG_I82593_SHOW
1172 /*------------------------------------------------------------------*/
1174 * Print the formatted status of the i82593's receive unit.
1177 wv_ru_show(struct net_device * dev)
1179 net_local *lp = netdev_priv(dev);
1181 printk(KERN_DEBUG "##### wavelan i82593 receiver status: #####\n");
1182 printk(KERN_DEBUG "ru: rfp %d stop %d", lp->rfp, lp->stop);
1184 * Not implemented yet...
1188 #endif /* DEBUG_I82593_SHOW */
1190 #ifdef DEBUG_DEVICE_SHOW
1191 /*------------------------------------------------------------------*/
1193 * Print the formatted status of the WaveLAN PCMCIA device driver.
1196 wv_dev_show(struct net_device * dev)
1198 printk(KERN_DEBUG "dev:");
1199 printk(" state=%lX,", dev->state);
1200 printk(" trans_start=%ld,", dev->trans_start);
1201 printk(" flags=0x%x,", dev->flags);
1205 /*------------------------------------------------------------------*/
1207 * Print the formatted status of the WaveLAN PCMCIA device driver's
1208 * private information.
1211 wv_local_show(struct net_device * dev)
1213 net_local *lp = netdev_priv(dev);
1215 printk(KERN_DEBUG "local:");
1217 * Not implemented yet...
1220 } /* wv_local_show */
1221 #endif /* DEBUG_DEVICE_SHOW */
1223 #if defined(DEBUG_RX_INFO) || defined(DEBUG_TX_INFO)
1224 /*------------------------------------------------------------------*/
1226 * Dump packet header (and content if necessary) on the screen
1229 wv_packet_info(u_char * p, /* Packet to dump */
1230 int length, /* Length of the packet */
1231 char * msg1, /* Name of the device */
1232 char * msg2) /* Name of the function */
1237 printk(KERN_DEBUG "%s: %s(): dest %pM, length %d\n",
1238 msg1, msg2, p, length);
1239 printk(KERN_DEBUG "%s: %s(): src %pM, type 0x%02X%02X\n",
1240 msg1, msg2, &p[6], p[12], p[13]);
1242 #ifdef DEBUG_PACKET_DUMP
1244 printk(KERN_DEBUG "data=\"");
1246 if((maxi = length) > DEBUG_PACKET_DUMP)
1247 maxi = DEBUG_PACKET_DUMP;
1248 for(i = 14; i < maxi; i++)
1249 if(p[i] >= ' ' && p[i] <= '~')
1250 printk(" %c", p[i]);
1252 printk("%02X", p[i]);
1256 printk(KERN_DEBUG "\n");
1257 #endif /* DEBUG_PACKET_DUMP */
1259 #endif /* defined(DEBUG_RX_INFO) || defined(DEBUG_TX_INFO) */
1261 /*------------------------------------------------------------------*/
1263 * This is the information which is displayed by the driver at startup
1264 * There is a lot of flag to configure it at your will...
1267 wv_init_info(struct net_device * dev)
1269 unsigned int base = dev->base_addr;
1272 /* Read the parameter storage area */
1273 psa_read(dev, 0, (unsigned char *) &psa, sizeof(psa));
1275 #ifdef DEBUG_PSA_SHOW
1278 #ifdef DEBUG_MMC_SHOW
1281 #ifdef DEBUG_I82593_SHOW
1285 #ifdef DEBUG_BASIC_SHOW
1286 /* Now, let's go for the basic stuff */
1287 printk(KERN_NOTICE "%s: WaveLAN: port %#x, irq %d, hw_addr %pM",
1288 dev->name, base, dev->irq, dev->dev_addr);
1290 /* Print current network id */
1291 if(psa.psa_nwid_select)
1292 printk(", nwid 0x%02X-%02X", psa.psa_nwid[0], psa.psa_nwid[1]);
1294 printk(", nwid off");
1297 if(!(mmc_in(base, mmroff(0, mmr_fee_status)) &
1298 (MMR_FEE_STATUS_DWLD | MMR_FEE_STATUS_BUSY)))
1300 unsigned short freq;
1302 /* Ask the EEprom to read the frequency from the first area */
1303 fee_read(base, 0x00 /* 1st area - frequency... */,
1306 /* Print frequency */
1307 printk(", 2.00, %ld", (freq >> 6) + 2400L);
1315 printk(", PCMCIA, ");
1316 switch (psa.psa_subband)
1318 case PSA_SUBBAND_915:
1321 case PSA_SUBBAND_2425:
1324 case PSA_SUBBAND_2460:
1327 case PSA_SUBBAND_2484:
1330 case PSA_SUBBAND_2430_5:
1339 #endif /* DEBUG_BASIC_SHOW */
1341 #ifdef DEBUG_VERSION_SHOW
1342 /* Print version information */
1343 printk(KERN_NOTICE "%s", version);
1345 } /* wv_init_info */
1347 /********************* IOCTL, STATS & RECONFIG *********************/
1349 * We found here routines that are called by Linux on differents
1350 * occasions after the configuration and not for transmitting data
1351 * These may be called when the user use ifconfig, /proc/net/dev
1352 * or wireless extensions
1356 /*------------------------------------------------------------------*/
1358 * Set or clear the multicast filter for this adaptor.
1359 * num_addrs == -1 Promiscuous mode, receive all packets
1360 * num_addrs == 0 Normal mode, clear multicast list
1361 * num_addrs > 0 Multicast mode, receive normal and MC packets,
1362 * and do best-effort filtering.
1366 wavelan_set_multicast_list(struct net_device * dev)
1368 net_local * lp = netdev_priv(dev);
1370 #ifdef DEBUG_IOCTL_TRACE
1371 printk(KERN_DEBUG "%s: ->wavelan_set_multicast_list()\n", dev->name);
1374 #ifdef DEBUG_IOCTL_INFO
1375 printk(KERN_DEBUG "%s: wavelan_set_multicast_list(): setting Rx mode %02X to %d addresses.\n",
1376 dev->name, dev->flags, dev->mc_count);
1379 if(dev->flags & IFF_PROMISC)
1382 * Enable promiscuous mode: receive all packets.
1384 if(!lp->promiscuous)
1386 lp->promiscuous = 1;
1387 lp->allmulticast = 0;
1390 wv_82593_reconfig(dev);
1394 /* If all multicast addresses
1395 * or too much multicast addresses for the hardware filter */
1396 if((dev->flags & IFF_ALLMULTI) ||
1397 (dev->mc_count > I82593_MAX_MULTICAST_ADDRESSES))
1400 * Disable promiscuous mode, but active the all multicast mode
1402 if(!lp->allmulticast)
1404 lp->promiscuous = 0;
1405 lp->allmulticast = 1;
1408 wv_82593_reconfig(dev);
1412 /* If there is some multicast addresses to send */
1413 if(dev->mc_list != (struct dev_mc_list *) NULL)
1416 * Disable promiscuous mode, but receive all packets
1419 #ifdef MULTICAST_AVOID
1420 if(lp->promiscuous || lp->allmulticast ||
1421 (dev->mc_count != lp->mc_count))
1424 lp->promiscuous = 0;
1425 lp->allmulticast = 0;
1426 lp->mc_count = dev->mc_count;
1428 wv_82593_reconfig(dev);
1434 * Switch to normal mode: disable promiscuous mode and
1435 * clear the multicast list.
1437 if(lp->promiscuous || lp->mc_count == 0)
1439 lp->promiscuous = 0;
1440 lp->allmulticast = 0;
1443 wv_82593_reconfig(dev);
1446 #ifdef DEBUG_IOCTL_TRACE
1447 printk(KERN_DEBUG "%s: <-wavelan_set_multicast_list()\n", dev->name);
1451 /*------------------------------------------------------------------*/
1453 * This function doesn't exist...
1454 * (Note : it was a nice way to test the reconfigure stuff...)
1456 #ifdef SET_MAC_ADDRESS
1458 wavelan_set_mac_address(struct net_device * dev,
1461 struct sockaddr * mac = addr;
1463 /* Copy the address */
1464 memcpy(dev->dev_addr, mac->sa_data, WAVELAN_ADDR_SIZE);
1466 /* Reconfig the beast */
1467 wv_82593_reconfig(dev);
1471 #endif /* SET_MAC_ADDRESS */
1474 /*------------------------------------------------------------------*/
1476 * Frequency setting (for hardware able of it)
1477 * It's a bit complicated and you don't really want to look into it...
1480 wv_set_frequency(u_long base, /* i/o port of the card */
1481 iw_freq * frequency)
1483 const int BAND_NUM = 10; /* Number of bands */
1484 long freq = 0L; /* offset to 2.4 GHz in .5 MHz */
1485 #ifdef DEBUG_IOCTL_INFO
1489 /* Setting by frequency */
1490 /* Theoritically, you may set any frequency between
1491 * the two limits with a 0.5 MHz precision. In practice,
1492 * I don't want you to have trouble with local
1494 if((frequency->e == 1) &&
1495 (frequency->m >= (int) 2.412e8) && (frequency->m <= (int) 2.487e8))
1497 freq = ((frequency->m / 10000) - 24000L) / 5;
1500 /* Setting by channel (same as wfreqsel) */
1501 /* Warning : each channel is 22MHz wide, so some of the channels
1502 * will interfere... */
1503 if((frequency->e == 0) &&
1504 (frequency->m >= 0) && (frequency->m < BAND_NUM))
1506 /* Get frequency offset. */
1507 freq = channel_bands[frequency->m] >> 1;
1510 /* Verify if the frequency is allowed */
1513 u_short table[10]; /* Authorized frequency table */
1515 /* Read the frequency table */
1516 fee_read(base, 0x71 /* frequency table */,
1519 #ifdef DEBUG_IOCTL_INFO
1520 printk(KERN_DEBUG "Frequency table :");
1521 for(i = 0; i < 10; i++)
1529 /* Look in the table if the frequency is allowed */
1530 if(!(table[9 - ((freq - 24) / 16)] &
1531 (1 << ((freq - 24) % 16))))
1532 return -EINVAL; /* not allowed */
1537 /* If we get a usable frequency */
1540 unsigned short area[16];
1541 unsigned short dac[2];
1542 unsigned short area_verify[16];
1543 unsigned short dac_verify[2];
1544 /* Corresponding gain (in the power adjust value table)
1545 * see AT&T Wavelan Data Manual, REF 407-024689/E, page 3-8
1546 * & WCIN062D.DOC, page 6.2.9 */
1547 unsigned short power_limit[] = { 40, 80, 120, 160, 0 };
1548 int power_band = 0; /* Selected band */
1549 unsigned short power_adjust; /* Correct value */
1551 /* Search for the gain */
1553 while((freq > power_limit[power_band]) &&
1554 (power_limit[++power_band] != 0))
1557 /* Read the first area */
1558 fee_read(base, 0x00,
1562 fee_read(base, 0x60,
1565 /* Read the new power adjust value */
1566 fee_read(base, 0x6B - (power_band >> 1),
1568 if(power_band & 0x1)
1571 power_adjust &= 0xFF;
1573 #ifdef DEBUG_IOCTL_INFO
1574 printk(KERN_DEBUG "Wavelan EEprom Area 1 :");
1575 for(i = 0; i < 16; i++)
1582 printk(KERN_DEBUG "Wavelan EEprom DAC : %04X %04X\n",
1586 /* Frequency offset (for info only...) */
1587 area[0] = ((freq << 5) & 0xFFE0) | (area[0] & 0x1F);
1589 /* Receiver Principle main divider coefficient */
1590 area[3] = (freq >> 1) + 2400L - 352L;
1591 area[2] = ((freq & 0x1) << 4) | (area[2] & 0xFFEF);
1593 /* Transmitter Main divider coefficient */
1594 area[13] = (freq >> 1) + 2400L;
1595 area[12] = ((freq & 0x1) << 4) | (area[2] & 0xFFEF);
1597 /* Others part of the area are flags, bit streams or unused... */
1599 /* Set the value in the DAC */
1600 dac[1] = ((power_adjust >> 1) & 0x7F) | (dac[1] & 0xFF80);
1601 dac[0] = ((power_adjust & 0x1) << 4) | (dac[0] & 0xFFEF);
1603 /* Write the first area */
1604 fee_write(base, 0x00,
1608 fee_write(base, 0x60,
1611 /* We now should verify here that the EEprom writing was ok */
1613 /* ReRead the first area */
1614 fee_read(base, 0x00,
1617 /* ReRead the DAC */
1618 fee_read(base, 0x60,
1622 if(memcmp(area, area_verify, 16 * 2) ||
1623 memcmp(dac, dac_verify, 2 * 2))
1625 #ifdef DEBUG_IOCTL_ERROR
1626 printk(KERN_INFO "Wavelan: wv_set_frequency : unable to write new frequency to EEprom (?)\n");
1631 /* We must download the frequency parameters to the
1632 * synthetisers (from the EEprom - area 1)
1633 * Note : as the EEprom is auto decremented, we set the end
1635 mmc_out(base, mmwoff(0, mmw_fee_addr), 0x0F);
1636 mmc_out(base, mmwoff(0, mmw_fee_ctrl),
1637 MMW_FEE_CTRL_READ | MMW_FEE_CTRL_DWLD);
1639 /* Wait until the download is finished */
1640 fee_wait(base, 100, 100);
1642 /* We must now download the power adjust value (gain) to
1643 * the synthetisers (from the EEprom - area 7 - DAC) */
1644 mmc_out(base, mmwoff(0, mmw_fee_addr), 0x61);
1645 mmc_out(base, mmwoff(0, mmw_fee_ctrl),
1646 MMW_FEE_CTRL_READ | MMW_FEE_CTRL_DWLD);
1648 /* Wait until the download is finished */
1649 fee_wait(base, 100, 100);
1651 #ifdef DEBUG_IOCTL_INFO
1652 /* Verification of what we have done... */
1654 printk(KERN_DEBUG "Wavelan EEprom Area 1 :");
1655 for(i = 0; i < 16; i++)
1662 printk(KERN_DEBUG "Wavelan EEprom DAC : %04X %04X\n",
1663 dac_verify[0], dac_verify[1]);
1669 return -EINVAL; /* Bah, never get there... */
1672 /*------------------------------------------------------------------*/
1674 * Give the list of available frequencies
1677 wv_frequency_list(u_long base, /* i/o port of the card */
1678 iw_freq * list, /* List of frequency to fill */
1679 int max) /* Maximum number of frequencies */
1681 u_short table[10]; /* Authorized frequency table */
1682 long freq = 0L; /* offset to 2.4 GHz in .5 MHz + 12 MHz */
1683 int i; /* index in the table */
1684 const int BAND_NUM = 10; /* Number of bands */
1685 int c = 0; /* Channel number */
1687 /* Read the frequency table */
1688 fee_read(base, 0x71 /* frequency table */,
1691 /* Look all frequencies */
1693 for(freq = 0; freq < 150; freq++)
1694 /* Look in the table if the frequency is allowed */
1695 if(table[9 - (freq / 16)] & (1 << (freq % 16)))
1697 /* Compute approximate channel number */
1698 while((((channel_bands[c] >> 1) - 24) < freq) &&
1701 list[i].i = c; /* Set the list index */
1703 /* put in the list */
1704 list[i].m = (((freq + 24) * 5) + 24000L) * 10000;
1715 #ifdef IW_WIRELESS_SPY
1716 /*------------------------------------------------------------------*/
1718 * Gather wireless spy statistics : for each packet, compare the source
1719 * address with out list, and if match, get the stats...
1720 * Sorry, but this function really need wireless extensions...
1723 wl_spy_gather(struct net_device * dev,
1724 u_char * mac, /* MAC address */
1725 u_char * stats) /* Statistics to gather */
1727 struct iw_quality wstats;
1729 wstats.qual = stats[2] & MMR_SGNL_QUAL;
1730 wstats.level = stats[0] & MMR_SIGNAL_LVL;
1731 wstats.noise = stats[1] & MMR_SILENCE_LVL;
1732 wstats.updated = 0x7;
1734 /* Update spy records */
1735 wireless_spy_update(dev, mac, &wstats);
1737 #endif /* IW_WIRELESS_SPY */
1740 /*------------------------------------------------------------------*/
1742 * This function calculate an histogram on the signal level.
1743 * As the noise is quite constant, it's like doing it on the SNR.
1744 * We have defined a set of interval (lp->his_range), and each time
1745 * the level goes in that interval, we increment the count (lp->his_sum).
1746 * With this histogram you may detect if one wavelan is really weak,
1747 * or you may also calculate the mean and standard deviation of the level...
1750 wl_his_gather(struct net_device * dev,
1751 u_char * stats) /* Statistics to gather */
1753 net_local * lp = netdev_priv(dev);
1754 u_char level = stats[0] & MMR_SIGNAL_LVL;
1757 /* Find the correct interval */
1759 while((i < (lp->his_number - 1)) && (level >= lp->his_range[i++]))
1762 /* Increment interval counter */
1765 #endif /* HISTOGRAM */
1767 static void wl_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
1769 strncpy(info->driver, "wavelan_cs", sizeof(info->driver)-1);
1772 static const struct ethtool_ops ops = {
1773 .get_drvinfo = wl_get_drvinfo
1776 /*------------------------------------------------------------------*/
1778 * Wireless Handler : get protocol name
1780 static int wavelan_get_name(struct net_device *dev,
1781 struct iw_request_info *info,
1782 union iwreq_data *wrqu,
1785 strcpy(wrqu->name, "WaveLAN");
1789 /*------------------------------------------------------------------*/
1791 * Wireless Handler : set NWID
1793 static int wavelan_set_nwid(struct net_device *dev,
1794 struct iw_request_info *info,
1795 union iwreq_data *wrqu,
1798 unsigned int base = dev->base_addr;
1799 net_local *lp = netdev_priv(dev);
1802 unsigned long flags;
1805 /* Disable interrupts and save flags. */
1806 spin_lock_irqsave(&lp->spinlock, flags);
1808 /* Set NWID in WaveLAN. */
1809 if (!wrqu->nwid.disabled) {
1810 /* Set NWID in psa */
1811 psa.psa_nwid[0] = (wrqu->nwid.value & 0xFF00) >> 8;
1812 psa.psa_nwid[1] = wrqu->nwid.value & 0xFF;
1813 psa.psa_nwid_select = 0x01;
1815 (char *) psa.psa_nwid - (char *) &psa,
1816 (unsigned char *) psa.psa_nwid, 3);
1818 /* Set NWID in mmc. */
1819 m.w.mmw_netw_id_l = psa.psa_nwid[1];
1820 m.w.mmw_netw_id_h = psa.psa_nwid[0];
1822 (char *) &m.w.mmw_netw_id_l -
1824 (unsigned char *) &m.w.mmw_netw_id_l, 2);
1825 mmc_out(base, mmwoff(0, mmw_loopt_sel), 0x00);
1827 /* Disable NWID in the psa. */
1828 psa.psa_nwid_select = 0x00;
1830 (char *) &psa.psa_nwid_select -
1832 (unsigned char *) &psa.psa_nwid_select,
1835 /* Disable NWID in the mmc (no filtering). */
1836 mmc_out(base, mmwoff(0, mmw_loopt_sel),
1837 MMW_LOOPT_SEL_DIS_NWID);
1839 /* update the Wavelan checksum */
1840 update_psa_checksum(dev);
1842 /* Enable interrupts and restore flags. */
1843 spin_unlock_irqrestore(&lp->spinlock, flags);
1848 /*------------------------------------------------------------------*/
1850 * Wireless Handler : get NWID
1852 static int wavelan_get_nwid(struct net_device *dev,
1853 struct iw_request_info *info,
1854 union iwreq_data *wrqu,
1857 net_local *lp = netdev_priv(dev);
1859 unsigned long flags;
1862 /* Disable interrupts and save flags. */
1863 spin_lock_irqsave(&lp->spinlock, flags);
1865 /* Read the NWID. */
1867 (char *) psa.psa_nwid - (char *) &psa,
1868 (unsigned char *) psa.psa_nwid, 3);
1869 wrqu->nwid.value = (psa.psa_nwid[0] << 8) + psa.psa_nwid[1];
1870 wrqu->nwid.disabled = !(psa.psa_nwid_select);
1871 wrqu->nwid.fixed = 1; /* Superfluous */
1873 /* Enable interrupts and restore flags. */
1874 spin_unlock_irqrestore(&lp->spinlock, flags);
1879 /*------------------------------------------------------------------*/
1881 * Wireless Handler : set frequency
1883 static int wavelan_set_freq(struct net_device *dev,
1884 struct iw_request_info *info,
1885 union iwreq_data *wrqu,
1888 unsigned int base = dev->base_addr;
1889 net_local *lp = netdev_priv(dev);
1890 unsigned long flags;
1893 /* Disable interrupts and save flags. */
1894 spin_lock_irqsave(&lp->spinlock, flags);
1896 /* Attempt to recognise 2.00 cards (2.4 GHz frequency selectable). */
1897 if (!(mmc_in(base, mmroff(0, mmr_fee_status)) &
1898 (MMR_FEE_STATUS_DWLD | MMR_FEE_STATUS_BUSY)))
1899 ret = wv_set_frequency(base, &(wrqu->freq));
1903 /* Enable interrupts and restore flags. */
1904 spin_unlock_irqrestore(&lp->spinlock, flags);
1909 /*------------------------------------------------------------------*/
1911 * Wireless Handler : get frequency
1913 static int wavelan_get_freq(struct net_device *dev,
1914 struct iw_request_info *info,
1915 union iwreq_data *wrqu,
1918 unsigned int base = dev->base_addr;
1919 net_local *lp = netdev_priv(dev);
1921 unsigned long flags;
1924 /* Disable interrupts and save flags. */
1925 spin_lock_irqsave(&lp->spinlock, flags);
1927 /* Attempt to recognise 2.00 cards (2.4 GHz frequency selectable).
1928 * Does it work for everybody, especially old cards? */
1929 if (!(mmc_in(base, mmroff(0, mmr_fee_status)) &
1930 (MMR_FEE_STATUS_DWLD | MMR_FEE_STATUS_BUSY))) {
1931 unsigned short freq;
1933 /* Ask the EEPROM to read the frequency from the first area. */
1934 fee_read(base, 0x00, &freq, 1);
1935 wrqu->freq.m = ((freq >> 5) * 5 + 24000L) * 10000;
1939 (char *) &psa.psa_subband - (char *) &psa,
1940 (unsigned char *) &psa.psa_subband, 1);
1942 if (psa.psa_subband <= 4) {
1943 wrqu->freq.m = fixed_bands[psa.psa_subband];
1944 wrqu->freq.e = (psa.psa_subband != 0);
1949 /* Enable interrupts and restore flags. */
1950 spin_unlock_irqrestore(&lp->spinlock, flags);
1955 /*------------------------------------------------------------------*/
1957 * Wireless Handler : set level threshold
1959 static int wavelan_set_sens(struct net_device *dev,
1960 struct iw_request_info *info,
1961 union iwreq_data *wrqu,
1964 unsigned int base = dev->base_addr;
1965 net_local *lp = netdev_priv(dev);
1967 unsigned long flags;
1970 /* Disable interrupts and save flags. */
1971 spin_lock_irqsave(&lp->spinlock, flags);
1973 /* Set the level threshold. */
1974 /* We should complain loudly if wrqu->sens.fixed = 0, because we
1975 * can't set auto mode... */
1976 psa.psa_thr_pre_set = wrqu->sens.value & 0x3F;
1978 (char *) &psa.psa_thr_pre_set - (char *) &psa,
1979 (unsigned char *) &psa.psa_thr_pre_set, 1);
1980 /* update the Wavelan checksum */
1981 update_psa_checksum(dev);
1982 mmc_out(base, mmwoff(0, mmw_thr_pre_set),
1983 psa.psa_thr_pre_set);
1985 /* Enable interrupts and restore flags. */
1986 spin_unlock_irqrestore(&lp->spinlock, flags);
1991 /*------------------------------------------------------------------*/
1993 * Wireless Handler : get level threshold
1995 static int wavelan_get_sens(struct net_device *dev,
1996 struct iw_request_info *info,
1997 union iwreq_data *wrqu,
2000 net_local *lp = netdev_priv(dev);
2002 unsigned long flags;
2005 /* Disable interrupts and save flags. */
2006 spin_lock_irqsave(&lp->spinlock, flags);
2008 /* Read the level threshold. */
2010 (char *) &psa.psa_thr_pre_set - (char *) &psa,
2011 (unsigned char *) &psa.psa_thr_pre_set, 1);
2012 wrqu->sens.value = psa.psa_thr_pre_set & 0x3F;
2013 wrqu->sens.fixed = 1;
2015 /* Enable interrupts and restore flags. */
2016 spin_unlock_irqrestore(&lp->spinlock, flags);
2021 /*------------------------------------------------------------------*/
2023 * Wireless Handler : set encryption key
2025 static int wavelan_set_encode(struct net_device *dev,
2026 struct iw_request_info *info,
2027 union iwreq_data *wrqu,
2030 unsigned int base = dev->base_addr;
2031 net_local *lp = netdev_priv(dev);
2032 unsigned long flags;
2036 /* Disable interrupts and save flags. */
2037 spin_lock_irqsave(&lp->spinlock, flags);
2039 /* Check if capable of encryption */
2040 if (!mmc_encr(base)) {
2044 /* Check the size of the key */
2045 if((wrqu->encoding.length != 8) && (wrqu->encoding.length != 0)) {
2050 /* Basic checking... */
2051 if (wrqu->encoding.length == 8) {
2052 /* Copy the key in the driver */
2053 memcpy(psa.psa_encryption_key, extra,
2054 wrqu->encoding.length);
2055 psa.psa_encryption_select = 1;
2058 (char *) &psa.psa_encryption_select -
2060 (unsigned char *) &psa.
2061 psa_encryption_select, 8 + 1);
2063 mmc_out(base, mmwoff(0, mmw_encr_enable),
2064 MMW_ENCR_ENABLE_EN | MMW_ENCR_ENABLE_MODE);
2065 mmc_write(base, mmwoff(0, mmw_encr_key),
2066 (unsigned char *) &psa.
2067 psa_encryption_key, 8);
2070 /* disable encryption */
2071 if (wrqu->encoding.flags & IW_ENCODE_DISABLED) {
2072 psa.psa_encryption_select = 0;
2074 (char *) &psa.psa_encryption_select -
2076 (unsigned char *) &psa.
2077 psa_encryption_select, 1);
2079 mmc_out(base, mmwoff(0, mmw_encr_enable), 0);
2081 /* update the Wavelan checksum */
2082 update_psa_checksum(dev);
2085 /* Enable interrupts and restore flags. */
2086 spin_unlock_irqrestore(&lp->spinlock, flags);
2091 /*------------------------------------------------------------------*/
2093 * Wireless Handler : get encryption key
2095 static int wavelan_get_encode(struct net_device *dev,
2096 struct iw_request_info *info,
2097 union iwreq_data *wrqu,
2100 unsigned int base = dev->base_addr;
2101 net_local *lp = netdev_priv(dev);
2103 unsigned long flags;
2106 /* Disable interrupts and save flags. */
2107 spin_lock_irqsave(&lp->spinlock, flags);
2109 /* Check if encryption is available */
2110 if (!mmc_encr(base)) {
2113 /* Read the encryption key */
2115 (char *) &psa.psa_encryption_select -
2117 (unsigned char *) &psa.
2118 psa_encryption_select, 1 + 8);
2120 /* encryption is enabled ? */
2121 if (psa.psa_encryption_select)
2122 wrqu->encoding.flags = IW_ENCODE_ENABLED;
2124 wrqu->encoding.flags = IW_ENCODE_DISABLED;
2125 wrqu->encoding.flags |= mmc_encr(base);
2127 /* Copy the key to the user buffer */
2128 wrqu->encoding.length = 8;
2129 memcpy(extra, psa.psa_encryption_key, wrqu->encoding.length);
2132 /* Enable interrupts and restore flags. */
2133 spin_unlock_irqrestore(&lp->spinlock, flags);
2138 #ifdef WAVELAN_ROAMING_EXT
2139 /*------------------------------------------------------------------*/
2141 * Wireless Handler : set ESSID (domain)
2143 static int wavelan_set_essid(struct net_device *dev,
2144 struct iw_request_info *info,
2145 union iwreq_data *wrqu,
2148 net_local *lp = netdev_priv(dev);
2149 unsigned long flags;
2152 /* Disable interrupts and save flags. */
2153 spin_lock_irqsave(&lp->spinlock, flags);
2155 /* Check if disable */
2156 if(wrqu->data.flags == 0)
2157 lp->filter_domains = 0;
2159 char essid[IW_ESSID_MAX_SIZE + 1];
2162 /* Terminate the string */
2163 memcpy(essid, extra, wrqu->data.length);
2164 essid[IW_ESSID_MAX_SIZE] = '\0';
2166 #ifdef DEBUG_IOCTL_INFO
2167 printk(KERN_DEBUG "SetEssid : ``%s''\n", essid);
2168 #endif /* DEBUG_IOCTL_INFO */
2170 /* Convert to a number (note : Wavelan specific) */
2171 lp->domain_id = simple_strtoul(essid, &endp, 16);
2172 /* Has it worked ? */
2174 lp->filter_domains = 1;
2176 lp->filter_domains = 0;
2181 /* Enable interrupts and restore flags. */
2182 spin_unlock_irqrestore(&lp->spinlock, flags);
2187 /*------------------------------------------------------------------*/
2189 * Wireless Handler : get ESSID (domain)
2191 static int wavelan_get_essid(struct net_device *dev,
2192 struct iw_request_info *info,
2193 union iwreq_data *wrqu,
2196 net_local *lp = netdev_priv(dev);
2198 /* Is the domain ID active ? */
2199 wrqu->data.flags = lp->filter_domains;
2201 /* Copy Domain ID into a string (Wavelan specific) */
2202 /* Sound crazy, be we can't have a snprintf in the kernel !!! */
2203 sprintf(extra, "%lX", lp->domain_id);
2204 extra[IW_ESSID_MAX_SIZE] = '\0';
2206 /* Set the length */
2207 wrqu->data.length = strlen(extra);
2212 /*------------------------------------------------------------------*/
2214 * Wireless Handler : set AP address
2216 static int wavelan_set_wap(struct net_device *dev,
2217 struct iw_request_info *info,
2218 union iwreq_data *wrqu,
2221 #ifdef DEBUG_IOCTL_INFO
2222 printk(KERN_DEBUG "Set AP to : %pM\n", wrqu->ap_addr.sa_data);
2223 #endif /* DEBUG_IOCTL_INFO */
2228 /*------------------------------------------------------------------*/
2230 * Wireless Handler : get AP address
2232 static int wavelan_get_wap(struct net_device *dev,
2233 struct iw_request_info *info,
2234 union iwreq_data *wrqu,
2237 /* Should get the real McCoy instead of own Ethernet address */
2238 memcpy(wrqu->ap_addr.sa_data, dev->dev_addr, WAVELAN_ADDR_SIZE);
2239 wrqu->ap_addr.sa_family = ARPHRD_ETHER;
2243 #endif /* WAVELAN_ROAMING_EXT */
2245 #ifdef WAVELAN_ROAMING
2246 /*------------------------------------------------------------------*/
2248 * Wireless Handler : set mode
2250 static int wavelan_set_mode(struct net_device *dev,
2251 struct iw_request_info *info,
2252 union iwreq_data *wrqu,
2255 net_local *lp = netdev_priv(dev);
2256 unsigned long flags;
2259 /* Disable interrupts and save flags. */
2260 spin_lock_irqsave(&lp->spinlock, flags);
2263 switch(wrqu->mode) {
2266 wv_roam_cleanup(dev);
2280 /* Enable interrupts and restore flags. */
2281 spin_unlock_irqrestore(&lp->spinlock, flags);
2286 /*------------------------------------------------------------------*/
2288 * Wireless Handler : get mode
2290 static int wavelan_get_mode(struct net_device *dev,
2291 struct iw_request_info *info,
2292 union iwreq_data *wrqu,
2296 wrqu->mode = IW_MODE_INFRA;
2298 wrqu->mode = IW_MODE_ADHOC;
2302 #endif /* WAVELAN_ROAMING */
2304 /*------------------------------------------------------------------*/
2306 * Wireless Handler : get range info
2308 static int wavelan_get_range(struct net_device *dev,
2309 struct iw_request_info *info,
2310 union iwreq_data *wrqu,
2313 unsigned int base = dev->base_addr;
2314 net_local *lp = netdev_priv(dev);
2315 struct iw_range *range = (struct iw_range *) extra;
2316 unsigned long flags;
2319 /* Set the length (very important for backward compatibility) */
2320 wrqu->data.length = sizeof(struct iw_range);
2322 /* Set all the info we don't care or don't know about to zero */
2323 memset(range, 0, sizeof(struct iw_range));
2325 /* Set the Wireless Extension versions */
2326 range->we_version_compiled = WIRELESS_EXT;
2327 range->we_version_source = 9;
2329 /* Set information in the range struct. */
2330 range->throughput = 1.4 * 1000 * 1000; /* don't argue on this ! */
2331 range->min_nwid = 0x0000;
2332 range->max_nwid = 0xFFFF;
2334 range->sensitivity = 0x3F;
2335 range->max_qual.qual = MMR_SGNL_QUAL;
2336 range->max_qual.level = MMR_SIGNAL_LVL;
2337 range->max_qual.noise = MMR_SILENCE_LVL;
2338 range->avg_qual.qual = MMR_SGNL_QUAL; /* Always max */
2339 /* Need to get better values for those two */
2340 range->avg_qual.level = 30;
2341 range->avg_qual.noise = 8;
2343 range->num_bitrates = 1;
2344 range->bitrate[0] = 2000000; /* 2 Mb/s */
2346 /* Event capability (kernel + driver) */
2347 range->event_capa[0] = (IW_EVENT_CAPA_MASK(0x8B02) |
2348 IW_EVENT_CAPA_MASK(0x8B04) |
2349 IW_EVENT_CAPA_MASK(0x8B06));
2350 range->event_capa[1] = IW_EVENT_CAPA_K_1;
2352 /* Disable interrupts and save flags. */
2353 spin_lock_irqsave(&lp->spinlock, flags);
2355 /* Attempt to recognise 2.00 cards (2.4 GHz frequency selectable). */
2356 if (!(mmc_in(base, mmroff(0, mmr_fee_status)) &
2357 (MMR_FEE_STATUS_DWLD | MMR_FEE_STATUS_BUSY))) {
2358 range->num_channels = 10;
2359 range->num_frequency = wv_frequency_list(base, range->freq,
2360 IW_MAX_FREQUENCIES);
2362 range->num_channels = range->num_frequency = 0;
2364 /* Encryption supported ? */
2365 if (mmc_encr(base)) {
2366 range->encoding_size[0] = 8; /* DES = 64 bits key */
2367 range->num_encoding_sizes = 1;
2368 range->max_encoding_tokens = 1; /* Only one key possible */
2370 range->num_encoding_sizes = 0;
2371 range->max_encoding_tokens = 0;
2374 /* Enable interrupts and restore flags. */
2375 spin_unlock_irqrestore(&lp->spinlock, flags);
2380 /*------------------------------------------------------------------*/
2382 * Wireless Private Handler : set quality threshold
2384 static int wavelan_set_qthr(struct net_device *dev,
2385 struct iw_request_info *info,
2386 union iwreq_data *wrqu,
2389 unsigned int base = dev->base_addr;
2390 net_local *lp = netdev_priv(dev);
2392 unsigned long flags;
2394 /* Disable interrupts and save flags. */
2395 spin_lock_irqsave(&lp->spinlock, flags);
2397 psa.psa_quality_thr = *(extra) & 0x0F;
2399 (char *) &psa.psa_quality_thr - (char *) &psa,
2400 (unsigned char *) &psa.psa_quality_thr, 1);
2401 /* update the Wavelan checksum */
2402 update_psa_checksum(dev);
2403 mmc_out(base, mmwoff(0, mmw_quality_thr),
2404 psa.psa_quality_thr);
2406 /* Enable interrupts and restore flags. */
2407 spin_unlock_irqrestore(&lp->spinlock, flags);
2412 /*------------------------------------------------------------------*/
2414 * Wireless Private Handler : get quality threshold
2416 static int wavelan_get_qthr(struct net_device *dev,
2417 struct iw_request_info *info,
2418 union iwreq_data *wrqu,
2421 net_local *lp = netdev_priv(dev);
2423 unsigned long flags;
2425 /* Disable interrupts and save flags. */
2426 spin_lock_irqsave(&lp->spinlock, flags);
2429 (char *) &psa.psa_quality_thr - (char *) &psa,
2430 (unsigned char *) &psa.psa_quality_thr, 1);
2431 *(extra) = psa.psa_quality_thr & 0x0F;
2433 /* Enable interrupts and restore flags. */
2434 spin_unlock_irqrestore(&lp->spinlock, flags);
2439 #ifdef WAVELAN_ROAMING
2440 /*------------------------------------------------------------------*/
2442 * Wireless Private Handler : set roaming
2444 static int wavelan_set_roam(struct net_device *dev,
2445 struct iw_request_info *info,
2446 union iwreq_data *wrqu,
2449 net_local *lp = netdev_priv(dev);
2450 unsigned long flags;
2452 /* Disable interrupts and save flags. */
2453 spin_lock_irqsave(&lp->spinlock, flags);
2455 /* Note : should check if user == root */
2456 if(do_roaming && (*extra)==0)
2457 wv_roam_cleanup(dev);
2458 else if(do_roaming==0 && (*extra)!=0)
2461 do_roaming = (*extra);
2463 /* Enable interrupts and restore flags. */
2464 spin_unlock_irqrestore(&lp->spinlock, flags);
2469 /*------------------------------------------------------------------*/
2471 * Wireless Private Handler : get quality threshold
2473 static int wavelan_get_roam(struct net_device *dev,
2474 struct iw_request_info *info,
2475 union iwreq_data *wrqu,
2478 *(extra) = do_roaming;
2482 #endif /* WAVELAN_ROAMING */
2485 /*------------------------------------------------------------------*/
2487 * Wireless Private Handler : set histogram
2489 static int wavelan_set_histo(struct net_device *dev,
2490 struct iw_request_info *info,
2491 union iwreq_data *wrqu,
2494 net_local *lp = netdev_priv(dev);
2496 /* Check the number of intervals. */
2497 if (wrqu->data.length > 16) {
2501 /* Disable histo while we copy the addresses.
2502 * As we don't disable interrupts, we need to do this */
2505 /* Are there ranges to copy? */
2506 if (wrqu->data.length > 0) {
2507 /* Copy interval ranges to the driver */
2508 memcpy(lp->his_range, extra, wrqu->data.length);
2512 printk(KERN_DEBUG "Histo :");
2513 for(i = 0; i < wrqu->data.length; i++)
2514 printk(" %d", lp->his_range[i]);
2518 /* Reset result structure. */
2519 memset(lp->his_sum, 0x00, sizeof(long) * 16);
2522 /* Now we can set the number of ranges */
2523 lp->his_number = wrqu->data.length;
2528 /*------------------------------------------------------------------*/
2530 * Wireless Private Handler : get histogram
2532 static int wavelan_get_histo(struct net_device *dev,
2533 struct iw_request_info *info,
2534 union iwreq_data *wrqu,
2537 net_local *lp = netdev_priv(dev);
2539 /* Set the number of intervals. */
2540 wrqu->data.length = lp->his_number;
2542 /* Give back the distribution statistics */
2543 if(lp->his_number > 0)
2544 memcpy(extra, lp->his_sum, sizeof(long) * lp->his_number);
2548 #endif /* HISTOGRAM */
2550 /*------------------------------------------------------------------*/
2552 * Structures to export the Wireless Handlers
2555 static const struct iw_priv_args wavelan_private_args[] = {
2556 /*{ cmd, set_args, get_args, name } */
2557 { SIOCSIPQTHR, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, 0, "setqualthr" },
2558 { SIOCGIPQTHR, 0, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, "getqualthr" },
2559 { SIOCSIPROAM, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, 0, "setroam" },
2560 { SIOCGIPROAM, 0, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, "getroam" },
2561 { SIOCSIPHISTO, IW_PRIV_TYPE_BYTE | 16, 0, "sethisto" },
2562 { SIOCGIPHISTO, 0, IW_PRIV_TYPE_INT | 16, "gethisto" },
2565 static const iw_handler wavelan_handler[] =
2567 NULL, /* SIOCSIWNAME */
2568 wavelan_get_name, /* SIOCGIWNAME */
2569 wavelan_set_nwid, /* SIOCSIWNWID */
2570 wavelan_get_nwid, /* SIOCGIWNWID */
2571 wavelan_set_freq, /* SIOCSIWFREQ */
2572 wavelan_get_freq, /* SIOCGIWFREQ */
2573 #ifdef WAVELAN_ROAMING
2574 wavelan_set_mode, /* SIOCSIWMODE */
2575 wavelan_get_mode, /* SIOCGIWMODE */
2576 #else /* WAVELAN_ROAMING */
2577 NULL, /* SIOCSIWMODE */
2578 NULL, /* SIOCGIWMODE */
2579 #endif /* WAVELAN_ROAMING */
2580 wavelan_set_sens, /* SIOCSIWSENS */
2581 wavelan_get_sens, /* SIOCGIWSENS */
2582 NULL, /* SIOCSIWRANGE */
2583 wavelan_get_range, /* SIOCGIWRANGE */
2584 NULL, /* SIOCSIWPRIV */
2585 NULL, /* SIOCGIWPRIV */
2586 NULL, /* SIOCSIWSTATS */
2587 NULL, /* SIOCGIWSTATS */
2588 iw_handler_set_spy, /* SIOCSIWSPY */
2589 iw_handler_get_spy, /* SIOCGIWSPY */
2590 iw_handler_set_thrspy, /* SIOCSIWTHRSPY */
2591 iw_handler_get_thrspy, /* SIOCGIWTHRSPY */
2592 #ifdef WAVELAN_ROAMING_EXT
2593 wavelan_set_wap, /* SIOCSIWAP */
2594 wavelan_get_wap, /* SIOCGIWAP */
2595 NULL, /* -- hole -- */
2596 NULL, /* SIOCGIWAPLIST */
2597 NULL, /* -- hole -- */
2598 NULL, /* -- hole -- */
2599 wavelan_set_essid, /* SIOCSIWESSID */
2600 wavelan_get_essid, /* SIOCGIWESSID */
2601 #else /* WAVELAN_ROAMING_EXT */
2602 NULL, /* SIOCSIWAP */
2603 NULL, /* SIOCGIWAP */
2604 NULL, /* -- hole -- */
2605 NULL, /* SIOCGIWAPLIST */
2606 NULL, /* -- hole -- */
2607 NULL, /* -- hole -- */
2608 NULL, /* SIOCSIWESSID */
2609 NULL, /* SIOCGIWESSID */
2610 #endif /* WAVELAN_ROAMING_EXT */
2611 NULL, /* SIOCSIWNICKN */
2612 NULL, /* SIOCGIWNICKN */
2613 NULL, /* -- hole -- */
2614 NULL, /* -- hole -- */
2615 NULL, /* SIOCSIWRATE */
2616 NULL, /* SIOCGIWRATE */
2617 NULL, /* SIOCSIWRTS */
2618 NULL, /* SIOCGIWRTS */
2619 NULL, /* SIOCSIWFRAG */
2620 NULL, /* SIOCGIWFRAG */
2621 NULL, /* SIOCSIWTXPOW */
2622 NULL, /* SIOCGIWTXPOW */
2623 NULL, /* SIOCSIWRETRY */
2624 NULL, /* SIOCGIWRETRY */
2625 wavelan_set_encode, /* SIOCSIWENCODE */
2626 wavelan_get_encode, /* SIOCGIWENCODE */
2629 static const iw_handler wavelan_private_handler[] =
2631 wavelan_set_qthr, /* SIOCIWFIRSTPRIV */
2632 wavelan_get_qthr, /* SIOCIWFIRSTPRIV + 1 */
2633 #ifdef WAVELAN_ROAMING
2634 wavelan_set_roam, /* SIOCIWFIRSTPRIV + 2 */
2635 wavelan_get_roam, /* SIOCIWFIRSTPRIV + 3 */
2636 #else /* WAVELAN_ROAMING */
2637 NULL, /* SIOCIWFIRSTPRIV + 2 */
2638 NULL, /* SIOCIWFIRSTPRIV + 3 */
2639 #endif /* WAVELAN_ROAMING */
2641 wavelan_set_histo, /* SIOCIWFIRSTPRIV + 4 */
2642 wavelan_get_histo, /* SIOCIWFIRSTPRIV + 5 */
2643 #endif /* HISTOGRAM */
2646 static const struct iw_handler_def wavelan_handler_def =
2648 .num_standard = ARRAY_SIZE(wavelan_handler),
2649 .num_private = ARRAY_SIZE(wavelan_private_handler),
2650 .num_private_args = ARRAY_SIZE(wavelan_private_args),
2651 .standard = wavelan_handler,
2652 .private = wavelan_private_handler,
2653 .private_args = wavelan_private_args,
2654 .get_wireless_stats = wavelan_get_wireless_stats,
2657 /*------------------------------------------------------------------*/
2659 * Get wireless statistics
2660 * Called by /proc/net/wireless...
2663 wavelan_get_wireless_stats(struct net_device * dev)
2665 unsigned int base = dev->base_addr;
2666 net_local * lp = netdev_priv(dev);
2669 unsigned long flags;
2671 #ifdef DEBUG_IOCTL_TRACE
2672 printk(KERN_DEBUG "%s: ->wavelan_get_wireless_stats()\n", dev->name);
2675 /* Disable interrupts & save flags */
2676 spin_lock_irqsave(&lp->spinlock, flags);
2678 wstats = &lp->wstats;
2680 /* Get data from the mmc */
2681 mmc_out(base, mmwoff(0, mmw_freeze), 1);
2683 mmc_read(base, mmroff(0, mmr_dce_status), &m.mmr_dce_status, 1);
2684 mmc_read(base, mmroff(0, mmr_wrong_nwid_l), &m.mmr_wrong_nwid_l, 2);
2685 mmc_read(base, mmroff(0, mmr_thr_pre_set), &m.mmr_thr_pre_set, 4);
2687 mmc_out(base, mmwoff(0, mmw_freeze), 0);
2689 /* Copy data to wireless stuff */
2690 wstats->status = m.mmr_dce_status & MMR_DCE_STATUS;
2691 wstats->qual.qual = m.mmr_sgnl_qual & MMR_SGNL_QUAL;
2692 wstats->qual.level = m.mmr_signal_lvl & MMR_SIGNAL_LVL;
2693 wstats->qual.noise = m.mmr_silence_lvl & MMR_SILENCE_LVL;
2694 wstats->qual.updated = (((m.mmr_signal_lvl & MMR_SIGNAL_LVL_VALID) >> 7) |
2695 ((m.mmr_signal_lvl & MMR_SIGNAL_LVL_VALID) >> 6) |
2696 ((m.mmr_silence_lvl & MMR_SILENCE_LVL_VALID) >> 5));
2697 wstats->discard.nwid += (m.mmr_wrong_nwid_h << 8) | m.mmr_wrong_nwid_l;
2698 wstats->discard.code = 0L;
2699 wstats->discard.misc = 0L;
2701 /* ReEnable interrupts & restore flags */
2702 spin_unlock_irqrestore(&lp->spinlock, flags);
2704 #ifdef DEBUG_IOCTL_TRACE
2705 printk(KERN_DEBUG "%s: <-wavelan_get_wireless_stats()\n", dev->name);
2710 /************************* PACKET RECEPTION *************************/
2712 * This part deal with receiving the packets.
2713 * The interrupt handler get an interrupt when a packet has been
2714 * successfully received and called this part...
2717 /*------------------------------------------------------------------*/
2719 * Calculate the starting address of the frame pointed to by the receive
2720 * frame pointer and verify that the frame seem correct
2721 * (called by wv_packet_rcv())
2724 wv_start_of_frame(struct net_device * dev,
2725 int rfp, /* end of frame */
2726 int wrap) /* start of buffer */
2728 unsigned int base = dev->base_addr;
2732 rp = (rfp - 5 + RX_SIZE) % RX_SIZE;
2733 outb(rp & 0xff, PIORL(base));
2734 outb(((rp >> 8) & PIORH_MASK), PIORH(base));
2735 len = inb(PIOP(base));
2736 len |= inb(PIOP(base)) << 8;
2738 /* Sanity checks on size */
2740 if(len > MAXDATAZ + 100)
2742 #ifdef DEBUG_RX_ERROR
2743 printk(KERN_INFO "%s: wv_start_of_frame: Received frame too large, rfp %d len 0x%x\n",
2744 dev->name, rfp, len);
2749 /* Frame too short */
2752 #ifdef DEBUG_RX_ERROR
2753 printk(KERN_INFO "%s: wv_start_of_frame: Received null frame, rfp %d len 0x%x\n",
2754 dev->name, rfp, len);
2759 /* Wrap around buffer */
2760 if(len > ((wrap - (rfp - len) + RX_SIZE) % RX_SIZE)) /* magic formula ! */
2762 #ifdef DEBUG_RX_ERROR
2763 printk(KERN_INFO "%s: wv_start_of_frame: wrap around buffer, wrap %d rfp %d len 0x%x\n",
2764 dev->name, wrap, rfp, len);
2769 return((rp - len + RX_SIZE) % RX_SIZE);
2770 } /* wv_start_of_frame */
2772 /*------------------------------------------------------------------*/
2774 * This routine does the actual copy of data (including the ethernet
2775 * header structure) from the WaveLAN card to an sk_buff chain that
2776 * will be passed up to the network interface layer. NOTE: We
2777 * currently don't handle trailer protocols (neither does the rest of
2778 * the network interface), so if that is needed, it will (at least in
2779 * part) be added here. The contents of the receive ring buffer are
2780 * copied to a message chain that is then passed to the kernel.
2782 * Note: if any errors occur, the packet is "dropped on the floor"
2783 * (called by wv_packet_rcv())
2786 wv_packet_read(struct net_device * dev,
2790 net_local * lp = netdev_priv(dev);
2791 struct sk_buff * skb;
2793 #ifdef DEBUG_RX_TRACE
2794 printk(KERN_DEBUG "%s: ->wv_packet_read(0x%X, %d)\n",
2795 dev->name, fd_p, sksize);
2798 /* Allocate some buffer for the new packet */
2799 if((skb = dev_alloc_skb(sksize+2)) == (struct sk_buff *) NULL)
2801 #ifdef DEBUG_RX_ERROR
2802 printk(KERN_INFO "%s: wv_packet_read(): could not alloc_skb(%d, GFP_ATOMIC)\n",
2805 dev->stats.rx_dropped++;
2807 * Not only do we want to return here, but we also need to drop the
2808 * packet on the floor to clear the interrupt.
2813 skb_reserve(skb, 2);
2814 fd_p = read_ringbuf(dev, fd_p, (char *) skb_put(skb, sksize), sksize);
2815 skb->protocol = eth_type_trans(skb, dev);
2817 #ifdef DEBUG_RX_INFO
2818 wv_packet_info(skb_mac_header(skb), sksize, dev->name, "wv_packet_read");
2819 #endif /* DEBUG_RX_INFO */
2821 /* Statistics gathering & stuff associated.
2822 * It seem a bit messy with all the define, but it's really simple... */
2824 #ifdef IW_WIRELESS_SPY
2825 (lp->spy_data.spy_number > 0) ||
2826 #endif /* IW_WIRELESS_SPY */
2828 (lp->his_number > 0) ||
2829 #endif /* HISTOGRAM */
2830 #ifdef WAVELAN_ROAMING
2832 #endif /* WAVELAN_ROAMING */
2835 u_char stats[3]; /* Signal level, Noise level, Signal quality */
2837 /* read signal level, silence level and signal quality bytes */
2838 fd_p = read_ringbuf(dev, (fd_p + 4) % RX_SIZE + RX_BASE,
2840 #ifdef DEBUG_RX_INFO
2841 printk(KERN_DEBUG "%s: wv_packet_read(): Signal level %d/63, Silence level %d/63, signal quality %d/16\n",
2842 dev->name, stats[0] & 0x3F, stats[1] & 0x3F, stats[2] & 0x0F);
2845 #ifdef WAVELAN_ROAMING
2847 if(WAVELAN_BEACON(skb->data))
2848 wl_roam_gather(dev, skb->data, stats);
2849 #endif /* WAVELAN_ROAMING */
2852 wl_spy_gather(dev, skb_mac_header(skb) + WAVELAN_ADDR_SIZE, stats);
2853 #endif /* WIRELESS_SPY */
2855 wl_his_gather(dev, stats);
2856 #endif /* HISTOGRAM */
2860 * Hand the packet to the Network Module
2864 /* Keep stats up to date */
2865 dev->stats.rx_packets++;
2866 dev->stats.rx_bytes += sksize;
2868 #ifdef DEBUG_RX_TRACE
2869 printk(KERN_DEBUG "%s: <-wv_packet_read()\n", dev->name);
2874 /*------------------------------------------------------------------*/
2876 * This routine is called by the interrupt handler to initiate a
2877 * packet transfer from the card to the network interface layer above
2878 * this driver. This routine checks if a buffer has been successfully
2879 * received by the WaveLAN card. If so, the routine wv_packet_read is
2880 * called to do the actual transfer of the card's data including the
2881 * ethernet header into a packet consisting of an sk_buff chain.
2882 * (called by wavelan_interrupt())
2883 * Note : the spinlock is already grabbed for us and irq are disabled.
2886 wv_packet_rcv(struct net_device * dev)
2888 unsigned int base = dev->base_addr;
2889 net_local * lp = netdev_priv(dev);
2899 #ifdef DEBUG_RX_TRACE
2900 printk(KERN_DEBUG "%s: ->wv_packet_rcv()\n", dev->name);
2903 /* Get the new receive frame pointer from the i82593 chip */
2904 outb(CR0_STATUS_2 | OP0_NOP, LCCR(base));
2905 i593_rfp = inb(LCSR(base));
2906 i593_rfp |= inb(LCSR(base)) << 8;
2907 i593_rfp %= RX_SIZE;
2909 /* Get the new receive frame pointer from the WaveLAN card.
2910 * It is 3 bytes more than the increment of the i82593 receive
2911 * frame pointer, for each packet. This is because it includes the
2912 * 3 roaming bytes added by the mmc.
2914 newrfp = inb(RPLL(base));
2915 newrfp |= inb(RPLH(base)) << 8;
2918 #ifdef DEBUG_RX_INFO
2919 printk(KERN_DEBUG "%s: wv_packet_rcv(): i593_rfp %d stop %d newrfp %d lp->rfp %d\n",
2920 dev->name, i593_rfp, lp->stop, newrfp, lp->rfp);
2923 #ifdef DEBUG_RX_ERROR
2924 /* If no new frame pointer... */
2925 if(lp->overrunning || newrfp == lp->rfp)
2926 printk(KERN_INFO "%s: wv_packet_rcv(): no new frame: i593_rfp %d stop %d newrfp %d lp->rfp %d\n",
2927 dev->name, i593_rfp, lp->stop, newrfp, lp->rfp);
2930 /* Read all frames (packets) received */
2931 while(newrfp != lp->rfp)
2933 /* A frame is composed of the packet, followed by a status word,
2934 * the length of the frame (word) and the mmc info (SNR & qual).
2935 * It's because the length is at the end that we can only scan
2936 * frames backward. */
2938 /* Find the first frame by skipping backwards over the frames */
2939 rp = newrfp; /* End of last frame */
2940 while(((f_start = wv_start_of_frame(dev, rp, newrfp)) != lp->rfp) &&
2944 /* If we had a problem */
2947 #ifdef DEBUG_RX_ERROR
2948 printk(KERN_INFO "wavelan_cs: cannot find start of frame ");
2949 printk(" i593_rfp %d stop %d newrfp %d lp->rfp %d\n",
2950 i593_rfp, lp->stop, newrfp, lp->rfp);
2952 lp->rfp = rp; /* Get to the last usable frame */
2956 /* f_start point to the beggining of the first frame received
2957 * and rp to the beggining of the next one */
2959 /* Read status & length of the frame */
2960 stat_ptr = (rp - 7 + RX_SIZE) % RX_SIZE;
2961 stat_ptr = read_ringbuf(dev, stat_ptr, c, 4);
2962 status = c[0] | (c[1] << 8);
2963 len = c[2] | (c[3] << 8);
2966 if((status & RX_RCV_OK) != RX_RCV_OK)
2968 dev->stats.rx_errors++;
2969 if(status & RX_NO_SFD)
2970 dev->stats.rx_frame_errors++;
2971 if(status & RX_CRC_ERR)
2972 dev->stats.rx_crc_errors++;
2973 if(status & RX_OVRRUN)
2974 dev->stats.rx_over_errors++;
2976 #ifdef DEBUG_RX_FAIL
2977 printk(KERN_DEBUG "%s: wv_packet_rcv(): packet not received ok, status = 0x%x\n",
2982 /* Read the packet and transmit to Linux */
2983 wv_packet_read(dev, f_start, len - 2);
2985 /* One frame has been processed, skip it */
2990 * Update the frame stop register, but set it to less than
2991 * the full 8K to allow space for 3 bytes of signal strength
2994 lp->stop = (i593_rfp + RX_SIZE - ((RX_SIZE / 64) * 3)) % RX_SIZE;
2995 outb(OP0_SWIT_TO_PORT_1 | CR0_CHNL, LCCR(base));
2996 outb(CR1_STOP_REG_UPDATE | (lp->stop >> RX_SIZE_SHIFT), LCCR(base));
2997 outb(OP1_SWIT_TO_PORT_0, LCCR(base));
2999 #ifdef DEBUG_RX_TRACE
3000 printk(KERN_DEBUG "%s: <-wv_packet_rcv()\n", dev->name);
3004 /*********************** PACKET TRANSMISSION ***********************/
3006 * This part deal with sending packet through the wavelan
3007 * We copy the packet to the send buffer and then issue the send
3008 * command to the i82593. The result of this operation will be
3009 * checked in wavelan_interrupt()
3012 /*------------------------------------------------------------------*/
3014 * This routine fills in the appropriate registers and memory
3015 * locations on the WaveLAN card and starts the card off on
3017 * (called in wavelan_packet_xmit())
3020 wv_packet_write(struct net_device * dev,
3024 net_local * lp = netdev_priv(dev);
3025 unsigned int base = dev->base_addr;
3026 unsigned long flags;
3028 register u_short xmtdata_base = TX_BASE;
3030 #ifdef DEBUG_TX_TRACE
3031 printk(KERN_DEBUG "%s: ->wv_packet_write(%d)\n", dev->name, length);
3034 spin_lock_irqsave(&lp->spinlock, flags);
3036 /* Write the length of data buffer followed by the buffer */
3037 outb(xmtdata_base & 0xff, PIORL(base));
3038 outb(((xmtdata_base >> 8) & PIORH_MASK) | PIORH_SEL_TX, PIORH(base));
3039 outb(clen & 0xff, PIOP(base)); /* lsb */
3040 outb(clen >> 8, PIOP(base)); /* msb */
3043 outsb(PIOP(base), buf, clen);
3045 /* Indicate end of transmit chain */
3046 outb(OP0_NOP, PIOP(base));
3047 /* josullvn@cs.cmu.edu: need to send a second NOP for alignment... */
3048 outb(OP0_NOP, PIOP(base));
3050 /* Reset the transmit DMA pointer */
3051 hacr_write_slow(base, HACR_PWR_STAT | HACR_TX_DMA_RESET);
3052 hacr_write(base, HACR_DEFAULT);
3053 /* Send the transmit command */
3054 wv_82593_cmd(dev, "wv_packet_write(): transmit",
3055 OP0_TRANSMIT, SR0_NO_RESULT);
3057 /* Make sure the watchdog will keep quiet for a while */
3058 dev->trans_start = jiffies;
3060 /* Keep stats up to date */
3061 dev->stats.tx_bytes += length;
3063 spin_unlock_irqrestore(&lp->spinlock, flags);
3065 #ifdef DEBUG_TX_INFO
3066 wv_packet_info((u_char *) buf, length, dev->name, "wv_packet_write");
3067 #endif /* DEBUG_TX_INFO */
3069 #ifdef DEBUG_TX_TRACE
3070 printk(KERN_DEBUG "%s: <-wv_packet_write()\n", dev->name);
3074 /*------------------------------------------------------------------*/
3076 * This routine is called when we want to send a packet (NET3 callback)
3077 * In this routine, we check if the harware is ready to accept
3078 * the packet. We also prevent reentrance. Then, we call the function
3079 * to send the packet...
3082 wavelan_packet_xmit(struct sk_buff * skb,
3083 struct net_device * dev)
3085 net_local * lp = netdev_priv(dev);
3086 unsigned long flags;
3088 #ifdef DEBUG_TX_TRACE
3089 printk(KERN_DEBUG "%s: ->wavelan_packet_xmit(0x%X)\n", dev->name,
3094 * Block a timer-based transmit from overlapping a previous transmit.
3095 * In other words, prevent reentering this routine.
3097 netif_stop_queue(dev);
3099 /* If somebody has asked to reconfigure the controller,
3100 * we can do it now */
3101 if(lp->reconfig_82593)
3103 spin_lock_irqsave(&lp->spinlock, flags); /* Disable interrupts */
3104 wv_82593_config(dev);
3105 spin_unlock_irqrestore(&lp->spinlock, flags); /* Re-enable interrupts */
3106 /* Note : the configure procedure was totally synchronous,
3107 * so the Tx buffer is now free */
3110 #ifdef DEBUG_TX_ERROR
3112 printk(KERN_INFO "skb has next\n");
3115 /* Check if we need some padding */
3116 /* Note : on wireless the propagation time is in the order of 1us,
3117 * and we don't have the Ethernet specific requirement of beeing
3118 * able to detect collisions, therefore in theory we don't really
3119 * need to pad. Jean II */
3120 if (skb_padto(skb, ETH_ZLEN))
3123 wv_packet_write(dev, skb->data, skb->len);
3127 #ifdef DEBUG_TX_TRACE
3128 printk(KERN_DEBUG "%s: <-wavelan_packet_xmit()\n", dev->name);
3133 /********************** HARDWARE CONFIGURATION **********************/
3135 * This part do the real job of starting and configuring the hardware.
3138 /*------------------------------------------------------------------*/
3140 * Routine to initialize the Modem Management Controller.
3141 * (called by wv_hw_config())
3144 wv_mmc_init(struct net_device * dev)
3146 unsigned int base = dev->base_addr;
3150 int i; /* Loop counter */
3152 #ifdef DEBUG_CONFIG_TRACE
3153 printk(KERN_DEBUG "%s: ->wv_mmc_init()\n", dev->name);
3156 /* Read the parameter storage area */
3157 psa_read(dev, 0, (unsigned char *) &psa, sizeof(psa));
3160 * Check the first three octets of the MAC addr for the manufacturer's code.
3161 * Note: If you get the error message below, you've got a
3162 * non-NCR/AT&T/Lucent PCMCIA cards, see wavelan_cs.h for detail on
3163 * how to configure your card...
3165 for (i = 0; i < ARRAY_SIZE(MAC_ADDRESSES); i++)
3166 if ((psa.psa_univ_mac_addr[0] == MAC_ADDRESSES[i][0]) &&
3167 (psa.psa_univ_mac_addr[1] == MAC_ADDRESSES[i][1]) &&
3168 (psa.psa_univ_mac_addr[2] == MAC_ADDRESSES[i][2]))
3171 /* If we have not found it... */
3172 if (i == ARRAY_SIZE(MAC_ADDRESSES))
3174 #ifdef DEBUG_CONFIG_ERRORS
3175 printk(KERN_WARNING "%s: wv_mmc_init(): Invalid MAC address: %02X:%02X:%02X:...\n",
3176 dev->name, psa.psa_univ_mac_addr[0],
3177 psa.psa_univ_mac_addr[1], psa.psa_univ_mac_addr[2]);
3182 /* Get the MAC address */
3183 memcpy(&dev->dev_addr[0], &psa.psa_univ_mac_addr[0], WAVELAN_ADDR_SIZE);
3185 #ifdef USE_PSA_CONFIG
3186 configured = psa.psa_conf_status & 1;
3191 /* Is the PSA is not configured */
3194 /* User will be able to configure NWID after (with iwconfig) */
3195 psa.psa_nwid[0] = 0;
3196 psa.psa_nwid[1] = 0;
3198 /* As NWID is not set : no NWID checking */
3199 psa.psa_nwid_select = 0;
3201 /* Disable encryption */
3202 psa.psa_encryption_select = 0;
3204 /* Set to standard values
3207 * 0x04 for PCMCIA and 2.00 card (AT&T 407-024689/E document)
3209 if (psa.psa_comp_number & 1)
3210 psa.psa_thr_pre_set = 0x01;
3212 psa.psa_thr_pre_set = 0x04;
3213 psa.psa_quality_thr = 0x03;
3215 /* It is configured */
3216 psa.psa_conf_status |= 1;
3218 #ifdef USE_PSA_CONFIG
3220 psa_write(dev, (char *)psa.psa_nwid - (char *)&psa,
3221 (unsigned char *)psa.psa_nwid, 4);
3222 psa_write(dev, (char *)&psa.psa_thr_pre_set - (char *)&psa,
3223 (unsigned char *)&psa.psa_thr_pre_set, 1);
3224 psa_write(dev, (char *)&psa.psa_quality_thr - (char *)&psa,
3225 (unsigned char *)&psa.psa_quality_thr, 1);
3226 psa_write(dev, (char *)&psa.psa_conf_status - (char *)&psa,
3227 (unsigned char *)&psa.psa_conf_status, 1);
3228 /* update the Wavelan checksum */
3229 update_psa_checksum(dev);
3230 #endif /* USE_PSA_CONFIG */
3233 /* Zero the mmc structure */
3234 memset(&m, 0x00, sizeof(m));
3236 /* Copy PSA info to the mmc */
3237 m.mmw_netw_id_l = psa.psa_nwid[1];
3238 m.mmw_netw_id_h = psa.psa_nwid[0];
3240 if(psa.psa_nwid_select & 1)
3241 m.mmw_loopt_sel = 0x00;
3243 m.mmw_loopt_sel = MMW_LOOPT_SEL_DIS_NWID;
3245 memcpy(&m.mmw_encr_key, &psa.psa_encryption_key,
3246 sizeof(m.mmw_encr_key));
3248 if(psa.psa_encryption_select)
3249 m.mmw_encr_enable = MMW_ENCR_ENABLE_EN | MMW_ENCR_ENABLE_MODE;
3251 m.mmw_encr_enable = 0;
3253 m.mmw_thr_pre_set = psa.psa_thr_pre_set & 0x3F;
3254 m.mmw_quality_thr = psa.psa_quality_thr & 0x0F;
3257 * Set default modem control parameters.
3258 * See NCR document 407-0024326 Rev. A.
3260 m.mmw_jabber_enable = 0x01;
3261 m.mmw_anten_sel = MMW_ANTEN_SEL_ALG_EN;
3263 m.mmw_mod_delay = 0x04;
3264 m.mmw_jam_time = 0x38;
3266 m.mmw_des_io_invert = 0;
3268 m.mmw_decay_prm = 0;
3269 m.mmw_decay_updat_prm = 0;
3271 /* Write all info to mmc */
3272 mmc_write(base, 0, (u_char *)&m, sizeof(m));
3274 /* The following code start the modem of the 2.00 frequency
3275 * selectable cards at power on. It's not strictly needed for the
3276 * following boots...
3277 * The original patch was by Joe Finney for the PCMCIA driver, but
3278 * I've cleaned it a bit and add documentation.
3279 * Thanks to Loeke Brederveld from Lucent for the info.
3282 /* Attempt to recognise 2.00 cards (2.4 GHz frequency selectable)
3283 * (does it work for everybody ? - especially old cards...) */
3284 /* Note : WFREQSEL verify that it is able to read from EEprom
3285 * a sensible frequency (address 0x00) + that MMR_FEE_STATUS_ID
3286 * is 0xA (Xilinx version) or 0xB (Ariadne version).
3287 * My test is more crude but do work... */
3288 if(!(mmc_in(base, mmroff(0, mmr_fee_status)) &
3289 (MMR_FEE_STATUS_DWLD | MMR_FEE_STATUS_BUSY)))
3291 /* We must download the frequency parameters to the
3292 * synthetisers (from the EEprom - area 1)
3293 * Note : as the EEprom is auto decremented, we set the end
3295 m.mmw_fee_addr = 0x0F;
3296 m.mmw_fee_ctrl = MMW_FEE_CTRL_READ | MMW_FEE_CTRL_DWLD;
3297 mmc_write(base, (char *)&m.mmw_fee_ctrl - (char *)&m,
3298 (unsigned char *)&m.mmw_fee_ctrl, 2);
3300 /* Wait until the download is finished */
3301 fee_wait(base, 100, 100);
3303 #ifdef DEBUG_CONFIG_INFO
3304 /* The frequency was in the last word downloaded... */
3305 mmc_read(base, (char *)&m.mmw_fee_data_l - (char *)&m,
3306 (unsigned char *)&m.mmw_fee_data_l, 2);
3308 /* Print some info for the user */
3309 printk(KERN_DEBUG "%s: Wavelan 2.00 recognised (frequency select) : Current frequency = %ld\n",
3311 ((m.mmw_fee_data_h << 4) |
3312 (m.mmw_fee_data_l >> 4)) * 5 / 2 + 24000L);
3315 /* We must now download the power adjust value (gain) to
3316 * the synthetisers (from the EEprom - area 7 - DAC) */
3317 m.mmw_fee_addr = 0x61;
3318 m.mmw_fee_ctrl = MMW_FEE_CTRL_READ | MMW_FEE_CTRL_DWLD;
3319 mmc_write(base, (char *)&m.mmw_fee_ctrl - (char *)&m,
3320 (unsigned char *)&m.mmw_fee_ctrl, 2);
3322 /* Wait until the download is finished */
3323 } /* if 2.00 card */
3325 #ifdef DEBUG_CONFIG_TRACE
3326 printk(KERN_DEBUG "%s: <-wv_mmc_init()\n", dev->name);
3331 /*------------------------------------------------------------------*/
3333 * Routine to gracefully turn off reception, and wait for any commands
3335 * (called in wv_ru_start() and wavelan_close() and wavelan_event())
3338 wv_ru_stop(struct net_device * dev)
3340 unsigned int base = dev->base_addr;
3341 net_local * lp = netdev_priv(dev);
3342 unsigned long flags;
3346 #ifdef DEBUG_CONFIG_TRACE
3347 printk(KERN_DEBUG "%s: ->wv_ru_stop()\n", dev->name);
3350 spin_lock_irqsave(&lp->spinlock, flags);
3352 /* First, send the LAN controller a stop receive command */
3353 wv_82593_cmd(dev, "wv_graceful_shutdown(): stop-rcv",
3354 OP0_STOP_RCV, SR0_NO_RESULT);
3356 /* Then, spin until the receive unit goes idle */
3361 outb(OP0_NOP | CR0_STATUS_3, LCCR(base));
3362 status = inb(LCSR(base));
3364 while(((status & SR3_RCV_STATE_MASK) != SR3_RCV_IDLE) && (spin-- > 0));
3366 /* Now, spin until the chip finishes executing its current command */
3370 outb(OP0_NOP | CR0_STATUS_3, LCCR(base));
3371 status = inb(LCSR(base));
3373 while(((status & SR3_EXEC_STATE_MASK) != SR3_EXEC_IDLE) && (spin-- > 0));
3375 spin_unlock_irqrestore(&lp->spinlock, flags);
3377 /* If there was a problem */
3380 #ifdef DEBUG_CONFIG_ERRORS
3381 printk(KERN_INFO "%s: wv_ru_stop(): The chip doesn't want to stop...\n",
3387 #ifdef DEBUG_CONFIG_TRACE
3388 printk(KERN_DEBUG "%s: <-wv_ru_stop()\n", dev->name);
3393 /*------------------------------------------------------------------*/
3395 * This routine starts the receive unit running. First, it checks if
3396 * the card is actually ready. Then the card is instructed to receive
3398 * (called in wv_hw_reset() & wavelan_open())
3401 wv_ru_start(struct net_device * dev)
3403 unsigned int base = dev->base_addr;
3404 net_local * lp = netdev_priv(dev);
3405 unsigned long flags;
3407 #ifdef DEBUG_CONFIG_TRACE
3408 printk(KERN_DEBUG "%s: ->wv_ru_start()\n", dev->name);
3412 * We need to start from a quiescent state. To do so, we could check
3413 * if the card is already running, but instead we just try to shut
3414 * it down. First, we disable reception (in case it was already enabled).
3416 if(!wv_ru_stop(dev))
3419 spin_lock_irqsave(&lp->spinlock, flags);
3421 /* Now we know that no command is being executed. */
3423 /* Set the receive frame pointer and stop pointer */
3425 outb(OP0_SWIT_TO_PORT_1 | CR0_CHNL, LCCR(base));
3427 /* Reset ring management. This sets the receive frame pointer to 1 */
3428 outb(OP1_RESET_RING_MNGMT, LCCR(base));
3431 /* XXX the i82593 manual page 6-4 seems to indicate that the stop register
3432 should be set as below */
3433 /* outb(CR1_STOP_REG_UPDATE|((RX_SIZE - 0x40)>> RX_SIZE_SHIFT),LCCR(base));*/
3435 /* but I set it 0 instead */
3438 /* but I set it to 3 bytes per packet less than 8K */
3439 lp->stop = (0 + RX_SIZE - ((RX_SIZE / 64) * 3)) % RX_SIZE;
3441 outb(CR1_STOP_REG_UPDATE | (lp->stop >> RX_SIZE_SHIFT), LCCR(base));
3442 outb(OP1_INT_ENABLE, LCCR(base));
3443 outb(OP1_SWIT_TO_PORT_0, LCCR(base));
3445 /* Reset receive DMA pointer */
3446 hacr_write_slow(base, HACR_PWR_STAT | HACR_TX_DMA_RESET);
3447 hacr_write_slow(base, HACR_DEFAULT);
3449 /* Receive DMA on channel 1 */
3450 wv_82593_cmd(dev, "wv_ru_start(): rcv-enable",
3451 CR0_CHNL | OP0_RCV_ENABLE, SR0_NO_RESULT);
3453 #ifdef DEBUG_I82593_SHOW
3459 /* spin until the chip starts receiving */
3462 outb(OP0_NOP | CR0_STATUS_3, LCCR(base));
3463 status = inb(LCSR(base));
3467 while(((status & SR3_RCV_STATE_MASK) != SR3_RCV_ACTIVE) &&
3468 ((status & SR3_RCV_STATE_MASK) != SR3_RCV_READY));
3469 printk(KERN_DEBUG "rcv status is 0x%x [i:%d]\n",
3470 (status & SR3_RCV_STATE_MASK), i);
3474 spin_unlock_irqrestore(&lp->spinlock, flags);
3476 #ifdef DEBUG_CONFIG_TRACE
3477 printk(KERN_DEBUG "%s: <-wv_ru_start()\n", dev->name);
3482 /*------------------------------------------------------------------*/
3484 * This routine does a standard config of the WaveLAN controller (i82593).
3485 * In the ISA driver, this is integrated in wavelan_hardware_reset()
3486 * (called by wv_hw_config(), wv_82593_reconfig() & wavelan_packet_xmit())
3489 wv_82593_config(struct net_device * dev)
3491 unsigned int base = dev->base_addr;
3492 net_local * lp = netdev_priv(dev);
3493 struct i82593_conf_block cfblk;
3496 #ifdef DEBUG_CONFIG_TRACE
3497 printk(KERN_DEBUG "%s: ->wv_82593_config()\n", dev->name);
3500 /* Create & fill i82593 config block
3502 * Now conform to Wavelan document WCIN085B
3504 memset(&cfblk, 0x00, sizeof(struct i82593_conf_block));
3505 cfblk.d6mod = FALSE; /* Run in i82593 advanced mode */
3506 cfblk.fifo_limit = 5; /* = 56 B rx and 40 B tx fifo thresholds */
3507 cfblk.forgnesi = FALSE; /* 0=82C501, 1=AMD7992B compatibility */
3509 cfblk.throttle_enb = FALSE;
3510 cfblk.contin = TRUE; /* enable continuous mode */
3511 cfblk.cntrxint = FALSE; /* enable continuous mode receive interrupts */
3512 cfblk.addr_len = WAVELAN_ADDR_SIZE;
3513 cfblk.acloc = TRUE; /* Disable source addr insertion by i82593 */
3514 cfblk.preamb_len = 0; /* 2 bytes preamble (SFD) */
3515 cfblk.loopback = FALSE;
3516 cfblk.lin_prio = 0; /* conform to 802.3 backoff algorithm */
3517 cfblk.exp_prio = 5; /* conform to 802.3 backoff algorithm */
3518 cfblk.bof_met = 1; /* conform to 802.3 backoff algorithm */
3519 cfblk.ifrm_spc = 0x20 >> 4; /* 32 bit times interframe spacing */
3520 cfblk.slottim_low = 0x20 >> 5; /* 32 bit times slot time */
3521 cfblk.slottim_hi = 0x0;
3522 cfblk.max_retr = 15;
3523 cfblk.prmisc = ((lp->promiscuous) ? TRUE: FALSE); /* Promiscuous mode */
3524 cfblk.bc_dis = FALSE; /* Enable broadcast reception */
3525 cfblk.crs_1 = TRUE; /* Transmit without carrier sense */
3526 cfblk.nocrc_ins = FALSE; /* i82593 generates CRC */
3527 cfblk.crc_1632 = FALSE; /* 32-bit Autodin-II CRC */
3528 cfblk.crs_cdt = FALSE; /* CD not to be interpreted as CS */
3529 cfblk.cs_filter = 0; /* CS is recognized immediately */
3530 cfblk.crs_src = FALSE; /* External carrier sense */
3531 cfblk.cd_filter = 0; /* CD is recognized immediately */
3532 cfblk.min_fr_len = ETH_ZLEN >> 2; /* Minimum frame length 64 bytes */
3533 cfblk.lng_typ = FALSE; /* Length field > 1500 = type field */
3534 cfblk.lng_fld = TRUE; /* Disable 802.3 length field check */
3535 cfblk.rxcrc_xf = TRUE; /* Don't transfer CRC to memory */
3536 cfblk.artx = TRUE; /* Disable automatic retransmission */
3537 cfblk.sarec = TRUE; /* Disable source addr trig of CD */
3538 cfblk.tx_jabber = TRUE; /* Disable jabber jam sequence */
3539 cfblk.hash_1 = FALSE; /* Use bits 0-5 in mc address hash */
3540 cfblk.lbpkpol = TRUE; /* Loopback pin active high */
3541 cfblk.fdx = FALSE; /* Disable full duplex operation */
3542 cfblk.dummy_6 = 0x3f; /* all ones */
3543 cfblk.mult_ia = FALSE; /* No multiple individual addresses */
3544 cfblk.dis_bof = FALSE; /* Disable the backoff algorithm ?! */
3545 cfblk.dummy_1 = TRUE; /* set to 1 */
3546 cfblk.tx_ifs_retrig = 3; /* Hmm... Disabled */
3547 #ifdef MULTICAST_ALL
3548 cfblk.mc_all = (lp->allmulticast ? TRUE: FALSE); /* Allow all multicasts */
3550 cfblk.mc_all = FALSE; /* No multicast all mode */
3552 cfblk.rcv_mon = 0; /* Monitor mode disabled */
3553 cfblk.frag_acpt = TRUE; /* Do not accept fragments */
3554 cfblk.tstrttrs = FALSE; /* No start transmission threshold */
3555 cfblk.fretx = TRUE; /* FIFO automatic retransmission */
3556 cfblk.syncrqs = FALSE; /* Synchronous DRQ deassertion... */
3557 cfblk.sttlen = TRUE; /* 6 byte status registers */
3558 cfblk.rx_eop = TRUE; /* Signal EOP on packet reception */
3559 cfblk.tx_eop = TRUE; /* Signal EOP on packet transmission */
3560 cfblk.rbuf_size = RX_SIZE>>11; /* Set receive buffer size */
3561 cfblk.rcvstop = TRUE; /* Enable Receive Stop Register */
3563 #ifdef DEBUG_I82593_SHOW
3565 u_char *c = (u_char *) &cfblk;
3567 printk(KERN_DEBUG "wavelan_cs: config block:");
3568 for(i = 0; i < sizeof(struct i82593_conf_block); i++,c++)
3570 if((i % 16) == 0) printk("\n" KERN_DEBUG);
3571 printk("%02x ", *c);
3577 /* Copy the config block to the i82593 */
3578 outb(TX_BASE & 0xff, PIORL(base));
3579 outb(((TX_BASE >> 8) & PIORH_MASK) | PIORH_SEL_TX, PIORH(base));
3580 outb(sizeof(struct i82593_conf_block) & 0xff, PIOP(base)); /* lsb */
3581 outb(sizeof(struct i82593_conf_block) >> 8, PIOP(base)); /* msb */
3582 outsb(PIOP(base), (char *) &cfblk, sizeof(struct i82593_conf_block));
3584 /* reset transmit DMA pointer */
3585 hacr_write_slow(base, HACR_PWR_STAT | HACR_TX_DMA_RESET);
3586 hacr_write(base, HACR_DEFAULT);
3587 if(!wv_82593_cmd(dev, "wv_82593_config(): configure",
3588 OP0_CONFIGURE, SR0_CONFIGURE_DONE))
3591 /* Initialize adapter's ethernet MAC address */
3592 outb(TX_BASE & 0xff, PIORL(base));
3593 outb(((TX_BASE >> 8) & PIORH_MASK) | PIORH_SEL_TX, PIORH(base));
3594 outb(WAVELAN_ADDR_SIZE, PIOP(base)); /* byte count lsb */
3595 outb(0, PIOP(base)); /* byte count msb */
3596 outsb(PIOP(base), &dev->dev_addr[0], WAVELAN_ADDR_SIZE);
3598 /* reset transmit DMA pointer */
3599 hacr_write_slow(base, HACR_PWR_STAT | HACR_TX_DMA_RESET);
3600 hacr_write(base, HACR_DEFAULT);
3601 if(!wv_82593_cmd(dev, "wv_82593_config(): ia-setup",
3602 OP0_IA_SETUP, SR0_IA_SETUP_DONE))
3605 #ifdef WAVELAN_ROAMING
3606 /* If roaming is enabled, join the "Beacon Request" multicast group... */
3607 /* But only if it's not in there already! */
3609 dev_mc_add(dev,WAVELAN_BEACON_ADDRESS, WAVELAN_ADDR_SIZE, 1);
3610 #endif /* WAVELAN_ROAMING */
3612 /* If any multicast address to set */
3615 struct dev_mc_list * dmi;
3616 int addrs_len = WAVELAN_ADDR_SIZE * lp->mc_count;
3618 #ifdef DEBUG_CONFIG_INFO
3619 printk(KERN_DEBUG "%s: wv_hw_config(): set %d multicast addresses:\n",
3620 dev->name, lp->mc_count);
3621 for(dmi=dev->mc_list; dmi; dmi=dmi->next)
3622 printk(KERN_DEBUG " %pM\n", dmi->dmi_addr);
3625 /* Initialize adapter's ethernet multicast addresses */
3626 outb(TX_BASE & 0xff, PIORL(base));
3627 outb(((TX_BASE >> 8) & PIORH_MASK) | PIORH_SEL_TX, PIORH(base));
3628 outb(addrs_len & 0xff, PIOP(base)); /* byte count lsb */
3629 outb((addrs_len >> 8), PIOP(base)); /* byte count msb */
3630 for(dmi=dev->mc_list; dmi; dmi=dmi->next)
3631 outsb(PIOP(base), dmi->dmi_addr, dmi->dmi_addrlen);
3633 /* reset transmit DMA pointer */
3634 hacr_write_slow(base, HACR_PWR_STAT | HACR_TX_DMA_RESET);
3635 hacr_write(base, HACR_DEFAULT);
3636 if(!wv_82593_cmd(dev, "wv_82593_config(): mc-setup",
3637 OP0_MC_SETUP, SR0_MC_SETUP_DONE))
3639 lp->mc_count = dev->mc_count; /* remember to avoid repeated reset */
3642 /* Job done, clear the flag */
3643 lp->reconfig_82593 = FALSE;
3645 #ifdef DEBUG_CONFIG_TRACE
3646 printk(KERN_DEBUG "%s: <-wv_82593_config()\n", dev->name);
3651 /*------------------------------------------------------------------*/
3653 * Read the Access Configuration Register, perform a software reset,
3654 * and then re-enable the card's software.
3656 * If I understand correctly : reset the pcmcia interface of the
3658 * (called by wv_config())
3661 wv_pcmcia_reset(struct net_device * dev)
3664 conf_reg_t reg = { 0, CS_READ, CISREG_COR, 0 };
3665 struct pcmcia_device * link = ((net_local *)netdev_priv(dev))->link;
3667 #ifdef DEBUG_CONFIG_TRACE
3668 printk(KERN_DEBUG "%s: ->wv_pcmcia_reset()\n", dev->name);
3671 i = pcmcia_access_configuration_register(link, ®);
3674 cs_error(link, AccessConfigurationRegister, i);
3678 #ifdef DEBUG_CONFIG_INFO
3679 printk(KERN_DEBUG "%s: wavelan_pcmcia_reset(): Config reg is 0x%x\n",
3680 dev->name, (u_int) reg.Value);
3683 reg.Action = CS_WRITE;
3684 reg.Value = reg.Value | COR_SW_RESET;
3685 i = pcmcia_access_configuration_register(link, ®);
3688 cs_error(link, AccessConfigurationRegister, i);
3692 reg.Action = CS_WRITE;
3693 reg.Value = COR_LEVEL_IRQ | COR_CONFIG;
3694 i = pcmcia_access_configuration_register(link, ®);
3697 cs_error(link, AccessConfigurationRegister, i);
3701 #ifdef DEBUG_CONFIG_TRACE
3702 printk(KERN_DEBUG "%s: <-wv_pcmcia_reset()\n", dev->name);
3707 /*------------------------------------------------------------------*/
3709 * wavelan_hw_config() is called after a CARD_INSERTION event is
3710 * received, to configure the wavelan hardware.
3711 * Note that the reception will be enabled in wavelan->open(), so the
3712 * device is configured but idle...
3713 * Performs the following actions:
3714 * 1. A pcmcia software reset (using wv_pcmcia_reset())
3715 * 2. A power reset (reset DMA)
3716 * 3. Reset the LAN controller
3717 * 4. Initialize the radio modem (using wv_mmc_init)
3718 * 5. Configure LAN controller (using wv_82593_config)
3719 * 6. Perform a diagnostic on the LAN controller
3720 * (called by wavelan_event() & wv_hw_reset())
3723 wv_hw_config(struct net_device * dev)
3725 net_local * lp = netdev_priv(dev);
3726 unsigned int base = dev->base_addr;
3727 unsigned long flags;
3730 #ifdef DEBUG_CONFIG_TRACE
3731 printk(KERN_DEBUG "%s: ->wv_hw_config()\n", dev->name);
3734 /* compile-time check the sizes of structures */
3735 BUILD_BUG_ON(sizeof(psa_t) != PSA_SIZE);
3736 BUILD_BUG_ON(sizeof(mmw_t) != MMW_SIZE);
3737 BUILD_BUG_ON(sizeof(mmr_t) != MMR_SIZE);
3739 /* Reset the pcmcia interface */
3740 if(wv_pcmcia_reset(dev) == FALSE)
3743 /* Disable interrupts */
3744 spin_lock_irqsave(&lp->spinlock, flags);
3746 /* Disguised goto ;-) */
3749 /* Power UP the module + reset the modem + reset host adapter
3750 * (in fact, reset DMA channels) */
3751 hacr_write_slow(base, HACR_RESET);
3752 hacr_write(base, HACR_DEFAULT);
3754 /* Check if the module has been powered up... */
3755 if(hasr_read(base) & HASR_NO_CLK)
3757 #ifdef DEBUG_CONFIG_ERRORS
3758 printk(KERN_WARNING "%s: wv_hw_config(): modem not connected or not a wavelan card\n",
3764 /* initialize the modem */
3765 if(wv_mmc_init(dev) == FALSE)
3767 #ifdef DEBUG_CONFIG_ERRORS
3768 printk(KERN_WARNING "%s: wv_hw_config(): Can't configure the modem\n",
3774 /* reset the LAN controller (i82593) */
3775 outb(OP0_RESET, LCCR(base));
3776 mdelay(1); /* A bit crude ! */
3778 /* Initialize the LAN controller */
3779 if(wv_82593_config(dev) == FALSE)
3781 #ifdef DEBUG_CONFIG_ERRORS
3782 printk(KERN_INFO "%s: wv_hw_config(): i82593 init failed\n",
3789 if(wv_diag(dev) == FALSE)
3791 #ifdef DEBUG_CONFIG_ERRORS
3792 printk(KERN_INFO "%s: wv_hw_config(): i82593 diagnostic failed\n",
3799 * insert code for loopback test here
3802 /* The device is now configured */
3808 /* Re-enable interrupts */
3809 spin_unlock_irqrestore(&lp->spinlock, flags);
3811 #ifdef DEBUG_CONFIG_TRACE
3812 printk(KERN_DEBUG "%s: <-wv_hw_config()\n", dev->name);
3817 /*------------------------------------------------------------------*/
3819 * Totally reset the wavelan and restart it.
3820 * Performs the following actions:
3821 * 1. Call wv_hw_config()
3822 * 2. Start the LAN controller's receive unit
3823 * (called by wavelan_event(), wavelan_watchdog() and wavelan_open())
3826 wv_hw_reset(struct net_device * dev)
3828 net_local * lp = netdev_priv(dev);
3830 #ifdef DEBUG_CONFIG_TRACE
3831 printk(KERN_DEBUG "%s: ->wv_hw_reset()\n", dev->name);
3837 /* Call wv_hw_config() for most of the reset & init stuff */
3838 if(wv_hw_config(dev) == FALSE)
3841 /* start receive unit */
3844 #ifdef DEBUG_CONFIG_TRACE
3845 printk(KERN_DEBUG "%s: <-wv_hw_reset()\n", dev->name);
3849 /*------------------------------------------------------------------*/
3851 * wv_pcmcia_config() is called after a CARD_INSERTION event is
3852 * received, to configure the PCMCIA socket, and to make the ethernet
3853 * device available to the system.
3854 * (called by wavelan_event())
3857 wv_pcmcia_config(struct pcmcia_device * link)
3859 struct net_device * dev = (struct net_device *) link->priv;
3863 net_local * lp = netdev_priv(dev);
3866 #ifdef DEBUG_CONFIG_TRACE
3867 printk(KERN_DEBUG "->wv_pcmcia_config(0x%p)\n", link);
3872 i = pcmcia_request_io(link, &link->io);
3875 cs_error(link, RequestIO, i);
3880 * Now allocate an interrupt line. Note that this does not
3881 * actually assign a handler to the interrupt.
3883 i = pcmcia_request_irq(link, &link->irq);
3886 cs_error(link, RequestIRQ, i);
3891 * This actually configures the PCMCIA socket -- setting up
3892 * the I/O windows and the interrupt mapping.
3894 link->conf.ConfigIndex = 1;
3895 i = pcmcia_request_configuration(link, &link->conf);
3898 cs_error(link, RequestConfiguration, i);
3903 * Allocate a small memory window. Note that the struct pcmcia_device
3904 * structure provides space for one window handle -- if your
3905 * device needs several windows, you'll need to keep track of
3906 * the handles in your private data structure, link->priv.
3908 req.Attributes = WIN_DATA_WIDTH_8|WIN_MEMORY_TYPE_AM|WIN_ENABLE;
3909 req.Base = req.Size = 0;
3910 req.AccessSpeed = mem_speed;
3911 i = pcmcia_request_window(&link, &req, &link->win);
3914 cs_error(link, RequestWindow, i);
3918 lp->mem = ioremap(req.Base, req.Size);
3919 dev->mem_start = (u_long)lp->mem;
3920 dev->mem_end = dev->mem_start + req.Size;
3922 mem.CardOffset = 0; mem.Page = 0;
3923 i = pcmcia_map_mem_page(link->win, &mem);
3926 cs_error(link, MapMemPage, i);
3930 /* Feed device with this info... */
3931 dev->irq = link->irq.AssignedIRQ;
3932 dev->base_addr = link->io.BasePort1;
3933 netif_start_queue(dev);
3935 #ifdef DEBUG_CONFIG_INFO
3936 printk(KERN_DEBUG "wv_pcmcia_config: MEMSTART %p IRQ %d IOPORT 0x%x\n",
3937 lp->mem, dev->irq, (u_int) dev->base_addr);
3940 SET_NETDEV_DEV(dev, &handle_to_dev(link));
3941 i = register_netdev(dev);
3944 #ifdef DEBUG_CONFIG_ERRORS
3945 printk(KERN_INFO "wv_pcmcia_config(): register_netdev() failed\n");
3950 while(0); /* Humm... Disguised goto !!! */
3952 /* If any step failed, release any partially configured state */
3955 wv_pcmcia_release(link);
3959 strcpy(((net_local *) netdev_priv(dev))->node.dev_name, dev->name);
3960 link->dev_node = &((net_local *) netdev_priv(dev))->node;
3962 #ifdef DEBUG_CONFIG_TRACE
3963 printk(KERN_DEBUG "<-wv_pcmcia_config()\n");
3968 /*------------------------------------------------------------------*/
3970 * After a card is removed, wv_pcmcia_release() will unregister the net
3971 * device, and release the PCMCIA configuration. If the device is
3972 * still open, this will be postponed until it is closed.
3975 wv_pcmcia_release(struct pcmcia_device *link)
3977 struct net_device * dev = (struct net_device *) link->priv;
3978 net_local * lp = netdev_priv(dev);
3980 #ifdef DEBUG_CONFIG_TRACE
3981 printk(KERN_DEBUG "%s: -> wv_pcmcia_release(0x%p)\n", dev->name, link);
3985 pcmcia_disable_device(link);
3987 #ifdef DEBUG_CONFIG_TRACE
3988 printk(KERN_DEBUG "%s: <- wv_pcmcia_release()\n", dev->name);
3992 /************************ INTERRUPT HANDLING ************************/
3995 * This function is the interrupt handler for the WaveLAN card. This
3996 * routine will be called whenever:
3997 * 1. A packet is received.
3998 * 2. A packet has successfully been transferred and the unit is
3999 * ready to transmit another packet.
4000 * 3. A command has completed execution.
4003 wavelan_interrupt(int irq,
4006 struct net_device * dev = dev_id;
4012 #ifdef DEBUG_INTERRUPT_TRACE
4013 printk(KERN_DEBUG "%s: ->wavelan_interrupt()\n", dev->name);
4016 lp = netdev_priv(dev);
4017 base = dev->base_addr;
4019 #ifdef DEBUG_INTERRUPT_INFO
4020 /* Check state of our spinlock (it should be cleared) */
4021 if(spin_is_locked(&lp->spinlock))
4023 "%s: wavelan_interrupt(): spinlock is already locked !!!\n",
4027 /* Prevent reentrancy. We need to do that because we may have
4028 * multiple interrupt handler running concurently.
4029 * It is safe because interrupts are disabled before aquiring
4031 spin_lock(&lp->spinlock);
4033 /* Treat all pending interrupts */
4036 /* ---------------- INTERRUPT CHECKING ---------------- */
4038 * Look for the interrupt and verify the validity
4040 outb(CR0_STATUS_0 | OP0_NOP, LCCR(base));
4041 status0 = inb(LCSR(base));
4043 #ifdef DEBUG_INTERRUPT_INFO
4044 printk(KERN_DEBUG "status0 0x%x [%s => 0x%x]", status0,
4045 (status0&SR0_INTERRUPT)?"int":"no int",status0&~SR0_INTERRUPT);
4046 if(status0&SR0_INTERRUPT)
4048 printk(" [%s => %d]\n", (status0 & SR0_CHNL) ? "chnl" :
4049 ((status0 & SR0_EXECUTION) ? "cmd" :
4050 ((status0 & SR0_RECEPTION) ? "recv" : "unknown")),
4051 (status0 & SR0_EVENT_MASK));
4057 /* Return if no actual interrupt from i82593 (normal exit) */
4058 if(!(status0 & SR0_INTERRUPT))
4061 /* If interrupt is both Rx and Tx or none...
4062 * This code in fact is there to catch the spurious interrupt
4063 * when you remove the wavelan pcmcia card from the socket */
4064 if(((status0 & SR0_BOTH_RX_TX) == SR0_BOTH_RX_TX) ||
4065 ((status0 & SR0_BOTH_RX_TX) == 0x0))
4067 #ifdef DEBUG_INTERRUPT_INFO
4068 printk(KERN_INFO "%s: wv_interrupt(): bogus interrupt (or from dead card) : %X\n",
4069 dev->name, status0);
4071 /* Acknowledge the interrupt */
4072 outb(CR0_INT_ACK | OP0_NOP, LCCR(base));
4076 /* ----------------- RECEIVING PACKET ----------------- */
4078 * When the wavelan signal the reception of a new packet,
4079 * we call wv_packet_rcv() to copy if from the buffer and
4082 if(status0 & SR0_RECEPTION)
4084 #ifdef DEBUG_INTERRUPT_INFO
4085 printk(KERN_DEBUG "%s: wv_interrupt(): receive\n", dev->name);
4088 if((status0 & SR0_EVENT_MASK) == SR0_STOP_REG_HIT)
4090 #ifdef DEBUG_INTERRUPT_ERROR
4091 printk(KERN_INFO "%s: wv_interrupt(): receive buffer overflow\n",
4094 dev->stats.rx_over_errors++;
4095 lp->overrunning = 1;
4098 /* Get the packet */
4100 lp->overrunning = 0;
4102 /* Acknowledge the interrupt */
4103 outb(CR0_INT_ACK | OP0_NOP, LCCR(base));
4107 /* ---------------- COMMAND COMPLETION ---------------- */
4109 * Interrupts issued when the i82593 has completed a command.
4110 * Most likely : transmission done
4113 /* If a transmission has been done */
4114 if((status0 & SR0_EVENT_MASK) == SR0_TRANSMIT_DONE ||
4115 (status0 & SR0_EVENT_MASK) == SR0_RETRANSMIT_DONE ||
4116 (status0 & SR0_EVENT_MASK) == SR0_TRANSMIT_NO_CRC_DONE)
4118 #ifdef DEBUG_TX_ERROR
4119 if((status0 & SR0_EVENT_MASK) == SR0_TRANSMIT_NO_CRC_DONE)
4120 printk(KERN_INFO "%s: wv_interrupt(): packet transmitted without CRC.\n",
4124 /* Get transmission status */
4125 tx_status = inb(LCSR(base));
4126 tx_status |= (inb(LCSR(base)) << 8);
4127 #ifdef DEBUG_INTERRUPT_INFO
4128 printk(KERN_DEBUG "%s: wv_interrupt(): transmission done\n",
4133 rcv_bytes = inb(LCSR(base));
4134 rcv_bytes |= (inb(LCSR(base)) << 8);
4135 status3 = inb(LCSR(base));
4136 printk(KERN_DEBUG "tx_status 0x%02x rcv_bytes 0x%02x status3 0x%x\n",
4137 tx_status, rcv_bytes, (u_int) status3);
4140 /* Check for possible errors */
4141 if((tx_status & TX_OK) != TX_OK)
4143 dev->stats.tx_errors++;
4145 if(tx_status & TX_FRTL)
4147 #ifdef DEBUG_TX_ERROR
4148 printk(KERN_INFO "%s: wv_interrupt(): frame too long\n",
4152 if(tx_status & TX_UND_RUN)
4154 #ifdef DEBUG_TX_FAIL
4155 printk(KERN_DEBUG "%s: wv_interrupt(): DMA underrun\n",
4158 dev->stats.tx_aborted_errors++;
4160 if(tx_status & TX_LOST_CTS)
4162 #ifdef DEBUG_TX_FAIL
4163 printk(KERN_DEBUG "%s: wv_interrupt(): no CTS\n", dev->name);
4165 dev->stats.tx_carrier_errors++;
4167 if(tx_status & TX_LOST_CRS)
4169 #ifdef DEBUG_TX_FAIL
4170 printk(KERN_DEBUG "%s: wv_interrupt(): no carrier\n",
4173 dev->stats.tx_carrier_errors++;
4175 if(tx_status & TX_HRT_BEAT)
4177 #ifdef DEBUG_TX_FAIL
4178 printk(KERN_DEBUG "%s: wv_interrupt(): heart beat\n", dev->name);
4180 dev->stats.tx_heartbeat_errors++;
4182 if(tx_status & TX_DEFER)
4184 #ifdef DEBUG_TX_FAIL
4185 printk(KERN_DEBUG "%s: wv_interrupt(): channel jammed\n",
4189 /* Ignore late collisions since they're more likely to happen
4190 * here (the WaveLAN design prevents the LAN controller from
4191 * receiving while it is transmitting). We take action only when
4192 * the maximum retransmit attempts is exceeded.
4194 if(tx_status & TX_COLL)
4196 if(tx_status & TX_MAX_COL)
4198 #ifdef DEBUG_TX_FAIL
4199 printk(KERN_DEBUG "%s: wv_interrupt(): channel congestion\n",
4202 if(!(tx_status & TX_NCOL_MASK))
4204 dev->stats.collisions += 0x10;
4208 } /* if(!(tx_status & TX_OK)) */
4210 dev->stats.collisions += (tx_status & TX_NCOL_MASK);
4211 dev->stats.tx_packets++;
4213 netif_wake_queue(dev);
4214 outb(CR0_INT_ACK | OP0_NOP, LCCR(base)); /* Acknowledge the interrupt */
4216 else /* if interrupt = transmit done or retransmit done */
4218 #ifdef DEBUG_INTERRUPT_ERROR
4219 printk(KERN_INFO "wavelan_cs: unknown interrupt, status0 = %02x\n",
4222 outb(CR0_INT_ACK | OP0_NOP, LCCR(base)); /* Acknowledge the interrupt */
4226 spin_unlock(&lp->spinlock);
4228 #ifdef DEBUG_INTERRUPT_TRACE
4229 printk(KERN_DEBUG "%s: <-wavelan_interrupt()\n", dev->name);
4232 /* We always return IRQ_HANDLED, because we will receive empty
4233 * interrupts under normal operations. Anyway, it doesn't matter
4234 * as we are dealing with an ISA interrupt that can't be shared.
4236 * Explanation : under heavy receive, the following happens :
4237 * ->wavelan_interrupt()
4238 * (status0 & SR0_INTERRUPT) != 0
4240 * (status0 & SR0_INTERRUPT) != 0
4242 * (status0 & SR0_INTERRUPT) == 0 // i.e. no more event
4243 * <-wavelan_interrupt()
4244 * ->wavelan_interrupt()
4245 * (status0 & SR0_INTERRUPT) == 0 // i.e. empty interrupt
4246 * <-wavelan_interrupt()
4249 } /* wv_interrupt */
4251 /*------------------------------------------------------------------*/
4253 * Watchdog: when we start a transmission, a timer is set for us in the
4254 * kernel. If the transmission completes, this timer is disabled. If
4255 * the timer expires, we are called and we try to unlock the hardware.
4257 * Note : This watchdog is move clever than the one in the ISA driver,
4258 * because it try to abort the current command before reseting
4260 * On the other hand, it's a bit simpler, because we don't have to
4261 * deal with the multiple Tx buffers...
4264 wavelan_watchdog(struct net_device * dev)
4266 net_local * lp = netdev_priv(dev);
4267 unsigned int base = dev->base_addr;
4268 unsigned long flags;
4269 int aborted = FALSE;
4271 #ifdef DEBUG_INTERRUPT_TRACE
4272 printk(KERN_DEBUG "%s: ->wavelan_watchdog()\n", dev->name);
4275 #ifdef DEBUG_INTERRUPT_ERROR
4276 printk(KERN_INFO "%s: wavelan_watchdog: watchdog timer expired\n",
4280 spin_lock_irqsave(&lp->spinlock, flags);
4282 /* Ask to abort the current command */
4283 outb(OP0_ABORT, LCCR(base));
4285 /* Wait for the end of the command (a bit hackish) */
4286 if(wv_82593_cmd(dev, "wavelan_watchdog(): abort",
4287 OP0_NOP | CR0_STATUS_3, SR0_EXECUTION_ABORTED))
4290 /* Release spinlock here so that wv_hw_reset() can grab it */
4291 spin_unlock_irqrestore(&lp->spinlock, flags);
4293 /* Check if we were successful in aborting it */
4296 /* It seem that it wasn't enough */
4297 #ifdef DEBUG_INTERRUPT_ERROR
4298 printk(KERN_INFO "%s: wavelan_watchdog: abort failed, trying reset\n",
4304 #ifdef DEBUG_PSA_SHOW
4307 psa_read(dev, 0, (unsigned char *) &psa, sizeof(psa));
4311 #ifdef DEBUG_MMC_SHOW
4314 #ifdef DEBUG_I82593_SHOW
4318 /* We are no more waiting for something... */
4319 netif_wake_queue(dev);
4321 #ifdef DEBUG_INTERRUPT_TRACE
4322 printk(KERN_DEBUG "%s: <-wavelan_watchdog()\n", dev->name);
4326 /********************* CONFIGURATION CALLBACKS *********************/
4328 * Here are the functions called by the pcmcia package (cardmgr) and
4329 * linux networking (NET3) for initialization, configuration and
4330 * deinstallations of the Wavelan Pcmcia Hardware.
4333 /*------------------------------------------------------------------*/
4335 * Configure and start up the WaveLAN PCMCIA adaptor.
4336 * Called by NET3 when it "open" the device.
4339 wavelan_open(struct net_device * dev)
4341 net_local * lp = netdev_priv(dev);
4342 struct pcmcia_device * link = lp->link;
4343 unsigned int base = dev->base_addr;
4345 #ifdef DEBUG_CALLBACK_TRACE
4346 printk(KERN_DEBUG "%s: ->wavelan_open(dev=0x%x)\n", dev->name,
4347 (unsigned int) dev);
4350 /* Check if the modem is powered up (wavelan_close() power it down */
4351 if(hasr_read(base) & HASR_NO_CLK)
4353 /* Power up (power up time is 250us) */
4354 hacr_write(base, HACR_DEFAULT);
4356 /* Check if the module has been powered up... */
4357 if(hasr_read(base) & HASR_NO_CLK)
4359 #ifdef DEBUG_CONFIG_ERRORS
4360 printk(KERN_WARNING "%s: wavelan_open(): modem not connected\n",
4367 /* Start reception and declare the driver ready */
4370 if(!wv_ru_start(dev))
4371 wv_hw_reset(dev); /* If problem : reset */
4372 netif_start_queue(dev);
4374 /* Mark the device as used */
4377 #ifdef WAVELAN_ROAMING
4380 #endif /* WAVELAN_ROAMING */
4382 #ifdef DEBUG_CALLBACK_TRACE
4383 printk(KERN_DEBUG "%s: <-wavelan_open()\n", dev->name);
4388 /*------------------------------------------------------------------*/
4390 * Shutdown the WaveLAN PCMCIA adaptor.
4391 * Called by NET3 when it "close" the device.
4394 wavelan_close(struct net_device * dev)
4396 struct pcmcia_device * link = ((net_local *)netdev_priv(dev))->link;
4397 unsigned int base = dev->base_addr;
4399 #ifdef DEBUG_CALLBACK_TRACE
4400 printk(KERN_DEBUG "%s: ->wavelan_close(dev=0x%x)\n", dev->name,
4401 (unsigned int) dev);
4404 /* If the device isn't open, then nothing to do */
4407 #ifdef DEBUG_CONFIG_INFO
4408 printk(KERN_DEBUG "%s: wavelan_close(): device not open\n", dev->name);
4413 #ifdef WAVELAN_ROAMING
4414 /* Cleanup of roaming stuff... */
4416 wv_roam_cleanup(dev);
4417 #endif /* WAVELAN_ROAMING */
4421 /* If the card is still present */
4422 if(netif_running(dev))
4424 netif_stop_queue(dev);
4426 /* Stop receiving new messages and wait end of transmission */
4429 /* Power down the module */
4430 hacr_write(base, HACR_DEFAULT & (~HACR_PWR_STAT));
4433 #ifdef DEBUG_CALLBACK_TRACE
4434 printk(KERN_DEBUG "%s: <-wavelan_close()\n", dev->name);
4439 static const struct net_device_ops wavelan_netdev_ops = {
4440 .ndo_open = wavelan_open,
4441 .ndo_stop = wavelan_close,
4442 .ndo_start_xmit = wavelan_packet_xmit,
4443 .ndo_set_multicast_list = wavelan_set_multicast_list,
4444 #ifdef SET_MAC_ADDRESS
4445 .ndo_set_mac_address = wavelan_set_mac_address,
4447 .ndo_tx_timeout = wavelan_watchdog,
4448 .ndo_change_mtu = eth_change_mtu,
4449 .ndo_validate_addr = eth_validate_addr,
4452 /*------------------------------------------------------------------*/
4454 * wavelan_attach() creates an "instance" of the driver, allocating
4455 * local data structures for one device (one interface). The device
4456 * is registered with Card Services.
4458 * The dev_link structure is initialized, but we don't actually
4459 * configure the card at this point -- we wait until we receive a
4460 * card insertion event.
4463 wavelan_probe(struct pcmcia_device *p_dev)
4465 struct net_device * dev; /* Interface generic data */
4466 net_local * lp; /* Interface specific data */
4469 #ifdef DEBUG_CALLBACK_TRACE
4470 printk(KERN_DEBUG "-> wavelan_attach()\n");
4473 /* The io structure describes IO port mapping */
4474 p_dev->io.NumPorts1 = 8;
4475 p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
4476 p_dev->io.IOAddrLines = 3;
4478 /* Interrupt setup */
4479 p_dev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING | IRQ_HANDLE_PRESENT;
4480 p_dev->irq.IRQInfo1 = IRQ_LEVEL_ID;
4481 p_dev->irq.Handler = wavelan_interrupt;
4483 /* General socket configuration */
4484 p_dev->conf.Attributes = CONF_ENABLE_IRQ;
4485 p_dev->conf.IntType = INT_MEMORY_AND_IO;
4487 /* Allocate the generic data structure */
4488 dev = alloc_etherdev(sizeof(net_local));
4492 p_dev->priv = p_dev->irq.Instance = dev;
4494 lp = netdev_priv(dev);
4496 /* Init specific data */
4498 lp->reconfig_82593 = FALSE;
4500 /* Multicast stuff */
4501 lp->promiscuous = 0;
4502 lp->allmulticast = 0;
4506 spin_lock_init(&lp->spinlock);
4511 /* wavelan NET3 callbacks */
4512 dev->netdev_ops = &wavelan_netdev_ops;
4513 dev->watchdog_timeo = WATCHDOG_JIFFIES;
4514 SET_ETHTOOL_OPS(dev, &ops);
4516 dev->wireless_handlers = &wavelan_handler_def;
4517 lp->wireless_data.spy_data = &lp->spy_data;
4518 dev->wireless_data = &lp->wireless_data;
4520 /* Other specific data */
4521 dev->mtu = WAVELAN_MTU;
4523 ret = wv_pcmcia_config(p_dev);
4527 ret = wv_hw_config(dev);
4530 pcmcia_disable_device(p_dev);
4536 #ifdef DEBUG_CALLBACK_TRACE
4537 printk(KERN_DEBUG "<- wavelan_attach()\n");
4543 /*------------------------------------------------------------------*/
4545 * This deletes a driver "instance". The device is de-registered with
4546 * Card Services. If it has been released, all local data structures
4547 * are freed. Otherwise, the structures will be freed when the device
4551 wavelan_detach(struct pcmcia_device *link)
4553 #ifdef DEBUG_CALLBACK_TRACE
4554 printk(KERN_DEBUG "-> wavelan_detach(0x%p)\n", link);
4557 /* Some others haven't done their job : give them another chance */
4558 wv_pcmcia_release(link);
4563 struct net_device * dev = (struct net_device *) link->priv;
4565 /* Remove ourselves from the kernel list of ethernet devices */
4566 /* Warning : can't be called from interrupt, timer or wavelan_close() */
4568 unregister_netdev(dev);
4569 link->dev_node = NULL;
4570 ((net_local *)netdev_priv(dev))->link = NULL;
4571 ((net_local *)netdev_priv(dev))->dev = NULL;
4575 #ifdef DEBUG_CALLBACK_TRACE
4576 printk(KERN_DEBUG "<- wavelan_detach()\n");
4580 static int wavelan_suspend(struct pcmcia_device *link)
4582 struct net_device * dev = (struct net_device *) link->priv;
4584 /* NB: wavelan_close will be called, but too late, so we are
4585 * obliged to close nicely the wavelan here. David, could you
4586 * close the device before suspending them ? And, by the way,
4587 * could you, on resume, add a "route add -net ..." after the
4588 * ifconfig up ? Thanks... */
4590 /* Stop receiving new messages and wait end of transmission */
4594 netif_device_detach(dev);
4596 /* Power down the module */
4597 hacr_write(dev->base_addr, HACR_DEFAULT & (~HACR_PWR_STAT));
4602 static int wavelan_resume(struct pcmcia_device *link)
4604 struct net_device * dev = (struct net_device *) link->priv;
4608 netif_device_attach(dev);
4615 static struct pcmcia_device_id wavelan_ids[] = {
4616 PCMCIA_DEVICE_PROD_ID12("AT&T","WaveLAN/PCMCIA", 0xe7c5affd, 0x1bc50975),
4617 PCMCIA_DEVICE_PROD_ID12("Digital", "RoamAbout/DS", 0x9999ab35, 0x00d05e06),
4618 PCMCIA_DEVICE_PROD_ID12("Lucent Technologies", "WaveLAN/PCMCIA", 0x23eb9949, 0x1bc50975),
4619 PCMCIA_DEVICE_PROD_ID12("NCR", "WaveLAN/PCMCIA", 0x24358cd4, 0x1bc50975),
4622 MODULE_DEVICE_TABLE(pcmcia, wavelan_ids);
4624 static struct pcmcia_driver wavelan_driver = {
4625 .owner = THIS_MODULE,
4627 .name = "wavelan_cs",
4629 .probe = wavelan_probe,
4630 .remove = wavelan_detach,
4631 .id_table = wavelan_ids,
4632 .suspend = wavelan_suspend,
4633 .resume = wavelan_resume,
4637 init_wavelan_cs(void)
4639 return pcmcia_register_driver(&wavelan_driver);
4643 exit_wavelan_cs(void)
4645 pcmcia_unregister_driver(&wavelan_driver);
4648 module_init(init_wavelan_cs);
4649 module_exit(exit_wavelan_cs);