ath5k: fix buffer overrun in rate debug code
[linux-2.6/mini2440.git] / drivers / net / wireless / wavelan_cs.c
blobde717f8ffd61061a5caccfa92cb62d70403b1087
1 /*
2 * Wavelan Pcmcia driver
4 * Jean II - HPLB '96
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.
25 #endif
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 ****************************************************************************
41 * Copyright 1995
42 * Anthony D. Joseph
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.
83 static inline u_char
84 hasr_read(u_long base)
86 return(inb(HASR(base)));
87 } /* hasr_read */
89 /*------------------------------------------------------------------*/
91 * Write to card's Host Adapter Command Register.
93 static inline void
94 hacr_write(u_long base,
95 u_char hacr)
97 outb(hacr, HACR(base));
98 } /* hacr_write */
100 /*------------------------------------------------------------------*/
102 * Write to card's Host Adapter Command Register. Include a delay for
103 * those times when it is needed.
105 static void
106 hacr_write_slow(u_long base,
107 u_char hacr)
109 hacr_write(base, hacr);
110 /* delay might only be needed sometimes */
111 mdelay(1);
112 } /* hacr_write_slow */
114 /*------------------------------------------------------------------*/
116 * Read the Parameter Storage Area from the WaveLAN card's memory
118 static void
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);
127 while(n-- > 0)
129 *b++ = readb(ptr);
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()...
135 ptr += 2;
137 } /* psa_read */
139 /*------------------------------------------------------------------*/
141 * Write the Paramter Storage Area to the WaveLAN card's memory
143 static void
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);
151 int count = 0;
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);
161 while(n-- > 0)
163 /* write to PSA */
164 writeb(*b++, ptr);
165 ptr += 2;
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... */
169 count = 0;
170 while((readb(verify) != PSA_COMP_PCMCIA_915) && (count++ < 100))
171 mdelay(1);
174 /* Put the host interface back in standard state */
175 hacr_write(base, HACR_DEFAULT);
176 } /* psa_write */
178 #ifdef SET_PSA_CRC
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
187 * depend on it.
189 static u_short
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;
205 else
206 crc_bytes >>= 1 ;
210 return crc_bytes;
211 } /* psa_crc */
212 #endif /* SET_PSA_CRC */
214 /*------------------------------------------------------------------*/
216 * update the checksum field in the Wavelan's PSA
218 static void
219 update_psa_checksum(struct net_device * dev)
221 #ifdef SET_PSA_CRC
222 psa_t psa;
223 u_short crc;
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;
236 /* Write it ! */
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));
248 if(crc != 0)
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.
258 static void
259 mmc_out(u_long base,
260 u_short o,
261 u_char d)
263 int count = 0;
265 /* Wait for MMC to go idle */
266 while((count++ < 100) && (inb(HASR(base)) & HASR_MMI_BUSY))
267 udelay(10);
269 outb((u_char)((o << 1) | MMR_MMI_WR), MMR(base));
270 outb(d, MMD(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 !
278 static void
279 mmc_write(u_long base,
280 u_char o,
281 u_char * b,
282 int n)
284 o += n;
285 b += n;
287 while(n-- > 0 )
288 mmc_out(base, --o, *(--b));
289 } /* mmc_write */
291 /*------------------------------------------------------------------*/
293 * Read 1 byte from the MMC.
294 * Optimised version for 1 byte, avoid using memory...
296 static u_char
297 mmc_in(u_long base,
298 u_short o)
300 int count = 0;
302 while((count++ < 100) && (inb(HASR(base)) & HASR_MMI_BUSY))
303 udelay(10);
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))
309 udelay(10);
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 !
321 static void
322 mmc_read(u_long base,
323 u_char o,
324 u_char * b,
325 int n)
327 o += n;
328 b += n;
330 while(n-- > 0)
331 *(--b) = mmc_in(base, --o);
332 } /* mmc_read */
334 /*------------------------------------------------------------------*/
336 * Get the type of encryption available...
338 static inline int
339 mmc_encr(u_long base) /* i/o port of the card */
341 int temp;
343 temp = mmc_in(base, mmroff(0, mmr_des_avail));
344 if((temp != MMR_DES_AVAIL_DES) && (temp != MMR_DES_AVAIL_AES))
345 return 0;
346 else
347 return temp;
350 /*------------------------------------------------------------------*/
352 * Wait for the frequency EEprom to complete a command...
354 static void
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))
363 udelay(delay);
366 /*------------------------------------------------------------------*/
368 * Read bytes from the Frequency EEprom (frequency select cards).
370 static void
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 */
382 while(n-- > 0)
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);
390 /* Read the value */
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.
402 * Jean II
404 static void
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);
431 /* Unprotect area */
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 */
435 /* Or use : */
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 */
442 /* Write enable */
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 */
452 while(n-- > 0)
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 */
462 mdelay(10);
463 fee_wait(base, 10, 100);
466 /* Write disable */
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 */
503 lp->cell_search=0;
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 */
512 /* table... */
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 */
526 while(ptr!=NULL)
528 old_ptr=ptr;
529 ptr=ptr->next;
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)
537 mm_t m;
538 unsigned long flags;
540 #ifdef WAVELAN_ROAMING_DEBUG
541 printk(KERN_DEBUG "WaveLAN: NWID promisc %s, device %s\n",(mode==NWID_PROMISC) ? "on" : "off", lp->dev->name);
542 #endif
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)
551 lp->cell_search=1;
552 else
553 lp->cell_search=0;
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;
564 while(ptr!=NULL){
565 if(ptr->nwid==nwid)
566 return ptr;
567 ptr=ptr->next;
569 return NULL;
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);
579 #endif
581 if(lp->wavepoint_table.num_wavepoints==MAX_WAVEPOINTS)
582 return NULL;
584 new_wavepoint = kmalloc(sizeof(wavepoint_history),GFP_ATOMIC);
585 if(new_wavepoint==NULL)
586 return 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)
611 if(wavepoint==NULL)
612 return;
614 if(lp->curr_point==wavepoint)
615 lp->curr_point=NULL;
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--;
627 kfree(wavepoint);
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);
638 #endif
640 if(lp->wavepoint_table.locked)
642 #if WAVELAN_ROAMING_DEBUG > 1
643 printk(KERN_DEBUG "WaveLAN: Wavepoint table locked...\n");
644 #endif
646 lp->cell_timer.expires=jiffies+1; /* If table in use, come back later */
647 add_timer(&lp->cell_timer);
648 return;
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);
657 #endif
659 old_point=wavepoint;
660 wavepoint=wavepoint->next;
661 wl_del_wavepoint(old_point,lp);
663 else
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
677 any beacons? */
678 if(num_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;
711 mm_t m;
712 unsigned long flags;
714 if(wavepoint==lp->curr_point) /* Sanity check... */
716 wv_nwid_filter(!NWID_PROMISC,lp);
717 return;
720 #ifdef WAVELAN_ROAMING_DEBUG
721 printk(KERN_DEBUG "WaveLAN: Doing handover to %.4X, dev %s\n",wavepoint->nwid,lp->dev->name);
722 #endif
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
743 of packet */
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);
754 #endif
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);
759 #endif
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);
767 if(wavepoint==NULL)
768 goto out;
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
774 stats. */
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);
788 out:
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)
799 return 1;
800 else
801 return 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())
817 static int
818 wv_82593_cmd(struct net_device * dev,
819 char * str,
820 int cmd,
821 int result)
823 unsigned int base = dev->base_addr;
824 int status;
825 int wait_completed;
826 long spin;
828 /* Spin until the chip finishes executing its current command (if any) */
829 spin = 1000;
832 /* Time calibration of the loop */
833 udelay(10);
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 be posted */
842 if(spin <= 0)
844 #ifdef DEBUG_INTERRUPT_ERROR
845 printk(KERN_INFO "wv_82593_cmd: %s timeout (previous command), status 0x%02x\n",
846 str, status);
847 #endif
848 return(FALSE);
851 /* Issue the command to the controller */
852 outb(cmd, LCCR(base));
854 /* If we don't have to check the result of the command
855 * Note : this mean that the irq handler will deal with that */
856 if(result == SR0_NO_RESULT)
857 return(TRUE);
859 /* We are waiting for command completion */
860 wait_completed = TRUE;
862 /* Busy wait while the LAN controller executes the command. */
863 spin = 1000;
866 /* Time calibration of the loop */
867 udelay(10);
869 /* Read the interrupt register */
870 outb(CR0_STATUS_0 | OP0_NOP, LCCR(base));
871 status = inb(LCSR(base));
873 /* Check if there was an interrupt posted */
874 if((status & SR0_INTERRUPT))
876 /* Acknowledge the interrupt */
877 outb(CR0_INT_ACK | OP0_NOP, LCCR(base));
879 /* Check if interrupt is a command completion */
880 if(((status & SR0_BOTH_RX_TX) != SR0_BOTH_RX_TX) &&
881 ((status & SR0_BOTH_RX_TX) != 0x0) &&
882 !(status & SR0_RECEPTION))
884 /* Signal command completion */
885 wait_completed = FALSE;
887 else
889 /* Note : Rx interrupts will be handled later, because we can
890 * handle multiple Rx packets at once */
891 #ifdef DEBUG_INTERRUPT_INFO
892 printk(KERN_INFO "wv_82593_cmd: not our interrupt\n");
893 #endif
897 while(wait_completed && (spin-- > 0));
899 /* If the interrupt hasn't be posted */
900 if(wait_completed)
902 #ifdef DEBUG_INTERRUPT_ERROR
903 printk(KERN_INFO "wv_82593_cmd: %s timeout, status 0x%02x\n",
904 str, status);
905 #endif
906 return(FALSE);
909 /* Check the return code returned by the card (see above) against
910 * the expected return code provided by the caller */
911 if((status & SR0_EVENT_MASK) != result)
913 #ifdef DEBUG_INTERRUPT_ERROR
914 printk(KERN_INFO "wv_82593_cmd: %s failed, status = 0x%x\n",
915 str, status);
916 #endif
917 return(FALSE);
920 return(TRUE);
921 } /* wv_82593_cmd */
923 /*------------------------------------------------------------------*/
925 * This routine does a 593 op-code number 7, and obtains the diagnose
926 * status for the WaveLAN.
928 static inline int
929 wv_diag(struct net_device * dev)
931 return(wv_82593_cmd(dev, "wv_diag(): diagnose",
932 OP0_DIAGNOSE, SR0_DIAGNOSE_PASSED));
933 } /* wv_diag */
935 /*------------------------------------------------------------------*/
937 * Routine to read len bytes from the i82593's ring buffer, starting at
938 * chip address addr. The results read from the chip are stored in buf.
939 * The return value is the address to use for next the call.
941 static int
942 read_ringbuf(struct net_device * dev,
943 int addr,
944 char * buf,
945 int len)
947 unsigned int base = dev->base_addr;
948 int ring_ptr = addr;
949 int chunk_len;
950 char * buf_ptr = buf;
952 /* Get all the buffer */
953 while(len > 0)
955 /* Position the Program I/O Register at the ring buffer pointer */
956 outb(ring_ptr & 0xff, PIORL(base));
957 outb(((ring_ptr >> 8) & PIORH_MASK), PIORH(base));
959 /* First, determine how much we can read without wrapping around the
960 ring buffer */
961 if((addr + len) < (RX_BASE + RX_SIZE))
962 chunk_len = len;
963 else
964 chunk_len = RX_BASE + RX_SIZE - addr;
965 insb(PIOP(base), buf_ptr, chunk_len);
966 buf_ptr += chunk_len;
967 len -= chunk_len;
968 ring_ptr = (ring_ptr - RX_BASE + chunk_len) % RX_SIZE + RX_BASE;
970 return(ring_ptr);
971 } /* read_ringbuf */
973 /*------------------------------------------------------------------*/
975 * Reconfigure the i82593, or at least ask for it...
976 * Because wv_82593_config use the transmission buffer, we must do it
977 * when we are sure that there is no transmission, so we do it now
978 * or in wavelan_packet_xmit() (I can't find any better place,
979 * wavelan_interrupt is not an option...), so you may experience
980 * some delay sometime...
982 static void
983 wv_82593_reconfig(struct net_device * dev)
985 net_local * lp = netdev_priv(dev);
986 struct pcmcia_device * link = lp->link;
987 unsigned long flags;
989 /* Arm the flag, will be cleard in wv_82593_config() */
990 lp->reconfig_82593 = TRUE;
992 /* Check if we can do it now ! */
993 if((link->open) && (netif_running(dev)) && !(netif_queue_stopped(dev)))
995 spin_lock_irqsave(&lp->spinlock, flags); /* Disable interrupts */
996 wv_82593_config(dev);
997 spin_unlock_irqrestore(&lp->spinlock, flags); /* Re-enable interrupts */
999 else
1001 #ifdef DEBUG_IOCTL_INFO
1002 printk(KERN_DEBUG
1003 "%s: wv_82593_reconfig(): delayed (state = %lX, link = %d)\n",
1004 dev->name, dev->state, link->open);
1005 #endif
1009 /********************* DEBUG & INFO SUBROUTINES *********************/
1011 * This routines are used in the code to show debug informations.
1012 * Most of the time, it dump the content of hardware structures...
1015 #ifdef DEBUG_PSA_SHOW
1016 /*------------------------------------------------------------------*/
1018 * Print the formatted contents of the Parameter Storage Area.
1020 static void
1021 wv_psa_show(psa_t * p)
1023 printk(KERN_DEBUG "##### wavelan psa contents: #####\n");
1024 printk(KERN_DEBUG "psa_io_base_addr_1: 0x%02X %02X %02X %02X\n",
1025 p->psa_io_base_addr_1,
1026 p->psa_io_base_addr_2,
1027 p->psa_io_base_addr_3,
1028 p->psa_io_base_addr_4);
1029 printk(KERN_DEBUG "psa_rem_boot_addr_1: 0x%02X %02X %02X\n",
1030 p->psa_rem_boot_addr_1,
1031 p->psa_rem_boot_addr_2,
1032 p->psa_rem_boot_addr_3);
1033 printk(KERN_DEBUG "psa_holi_params: 0x%02x, ", p->psa_holi_params);
1034 printk("psa_int_req_no: %d\n", p->psa_int_req_no);
1035 #ifdef DEBUG_SHOW_UNUSED
1036 printk(KERN_DEBUG "psa_unused0[]: %pM\n", p->psa_unused0);
1037 #endif /* DEBUG_SHOW_UNUSED */
1038 printk(KERN_DEBUG "psa_univ_mac_addr[]: %pM\n", p->psa_univ_mac_addr);
1039 printk(KERN_DEBUG "psa_local_mac_addr[]: %pM\n", p->psa_local_mac_addr);
1040 printk(KERN_DEBUG "psa_univ_local_sel: %d, ", p->psa_univ_local_sel);
1041 printk("psa_comp_number: %d, ", p->psa_comp_number);
1042 printk("psa_thr_pre_set: 0x%02x\n", p->psa_thr_pre_set);
1043 printk(KERN_DEBUG "psa_feature_select/decay_prm: 0x%02x, ",
1044 p->psa_feature_select);
1045 printk("psa_subband/decay_update_prm: %d\n", p->psa_subband);
1046 printk(KERN_DEBUG "psa_quality_thr: 0x%02x, ", p->psa_quality_thr);
1047 printk("psa_mod_delay: 0x%02x\n", p->psa_mod_delay);
1048 printk(KERN_DEBUG "psa_nwid: 0x%02x%02x, ", p->psa_nwid[0], p->psa_nwid[1]);
1049 printk("psa_nwid_select: %d\n", p->psa_nwid_select);
1050 printk(KERN_DEBUG "psa_encryption_select: %d, ", p->psa_encryption_select);
1051 printk("psa_encryption_key[]: %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x\n",
1052 p->psa_encryption_key[0],
1053 p->psa_encryption_key[1],
1054 p->psa_encryption_key[2],
1055 p->psa_encryption_key[3],
1056 p->psa_encryption_key[4],
1057 p->psa_encryption_key[5],
1058 p->psa_encryption_key[6],
1059 p->psa_encryption_key[7]);
1060 printk(KERN_DEBUG "psa_databus_width: %d\n", p->psa_databus_width);
1061 printk(KERN_DEBUG "psa_call_code/auto_squelch: 0x%02x, ",
1062 p->psa_call_code[0]);
1063 printk("psa_call_code[]: %02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X\n",
1064 p->psa_call_code[0],
1065 p->psa_call_code[1],
1066 p->psa_call_code[2],
1067 p->psa_call_code[3],
1068 p->psa_call_code[4],
1069 p->psa_call_code[5],
1070 p->psa_call_code[6],
1071 p->psa_call_code[7]);
1072 #ifdef DEBUG_SHOW_UNUSED
1073 printk(KERN_DEBUG "psa_reserved[]: %02X:%02X\n",
1074 p->psa_reserved[0],
1075 p->psa_reserved[1]);
1076 #endif /* DEBUG_SHOW_UNUSED */
1077 printk(KERN_DEBUG "psa_conf_status: %d, ", p->psa_conf_status);
1078 printk("psa_crc: 0x%02x%02x, ", p->psa_crc[0], p->psa_crc[1]);
1079 printk("psa_crc_status: 0x%02x\n", p->psa_crc_status);
1080 } /* wv_psa_show */
1081 #endif /* DEBUG_PSA_SHOW */
1083 #ifdef DEBUG_MMC_SHOW
1084 /*------------------------------------------------------------------*/
1086 * Print the formatted status of the Modem Management Controller.
1087 * This function need to be completed...
1089 static void
1090 wv_mmc_show(struct net_device * dev)
1092 unsigned int base = dev->base_addr;
1093 net_local * lp = netdev_priv(dev);
1094 mmr_t m;
1096 /* Basic check */
1097 if(hasr_read(base) & HASR_NO_CLK)
1099 printk(KERN_WARNING "%s: wv_mmc_show: modem not connected\n",
1100 dev->name);
1101 return;
1104 spin_lock_irqsave(&lp->spinlock, flags);
1106 /* Read the mmc */
1107 mmc_out(base, mmwoff(0, mmw_freeze), 1);
1108 mmc_read(base, 0, (u_char *)&m, sizeof(m));
1109 mmc_out(base, mmwoff(0, mmw_freeze), 0);
1111 /* Don't forget to update statistics */
1112 lp->wstats.discard.nwid += (m.mmr_wrong_nwid_h << 8) | m.mmr_wrong_nwid_l;
1114 spin_unlock_irqrestore(&lp->spinlock, flags);
1116 printk(KERN_DEBUG "##### wavelan modem status registers: #####\n");
1117 #ifdef DEBUG_SHOW_UNUSED
1118 printk(KERN_DEBUG "mmc_unused0[]: %02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X\n",
1119 m.mmr_unused0[0],
1120 m.mmr_unused0[1],
1121 m.mmr_unused0[2],
1122 m.mmr_unused0[3],
1123 m.mmr_unused0[4],
1124 m.mmr_unused0[5],
1125 m.mmr_unused0[6],
1126 m.mmr_unused0[7]);
1127 #endif /* DEBUG_SHOW_UNUSED */
1128 printk(KERN_DEBUG "Encryption algorithm: %02X - Status: %02X\n",
1129 m.mmr_des_avail, m.mmr_des_status);
1130 #ifdef DEBUG_SHOW_UNUSED
1131 printk(KERN_DEBUG "mmc_unused1[]: %02X:%02X:%02X:%02X:%02X\n",
1132 m.mmr_unused1[0],
1133 m.mmr_unused1[1],
1134 m.mmr_unused1[2],
1135 m.mmr_unused1[3],
1136 m.mmr_unused1[4]);
1137 #endif /* DEBUG_SHOW_UNUSED */
1138 printk(KERN_DEBUG "dce_status: 0x%x [%s%s%s%s]\n",
1139 m.mmr_dce_status,
1140 (m.mmr_dce_status & MMR_DCE_STATUS_RX_BUSY) ? "energy detected,":"",
1141 (m.mmr_dce_status & MMR_DCE_STATUS_LOOPT_IND) ?
1142 "loop test indicated," : "",
1143 (m.mmr_dce_status & MMR_DCE_STATUS_TX_BUSY) ? "transmitter on," : "",
1144 (m.mmr_dce_status & MMR_DCE_STATUS_JBR_EXPIRED) ?
1145 "jabber timer expired," : "");
1146 printk(KERN_DEBUG "Dsp ID: %02X\n",
1147 m.mmr_dsp_id);
1148 #ifdef DEBUG_SHOW_UNUSED
1149 printk(KERN_DEBUG "mmc_unused2[]: %02X:%02X\n",
1150 m.mmr_unused2[0],
1151 m.mmr_unused2[1]);
1152 #endif /* DEBUG_SHOW_UNUSED */
1153 printk(KERN_DEBUG "# correct_nwid: %d, # wrong_nwid: %d\n",
1154 (m.mmr_correct_nwid_h << 8) | m.mmr_correct_nwid_l,
1155 (m.mmr_wrong_nwid_h << 8) | m.mmr_wrong_nwid_l);
1156 printk(KERN_DEBUG "thr_pre_set: 0x%x [current signal %s]\n",
1157 m.mmr_thr_pre_set & MMR_THR_PRE_SET,
1158 (m.mmr_thr_pre_set & MMR_THR_PRE_SET_CUR) ? "above" : "below");
1159 printk(KERN_DEBUG "signal_lvl: %d [%s], ",
1160 m.mmr_signal_lvl & MMR_SIGNAL_LVL,
1161 (m.mmr_signal_lvl & MMR_SIGNAL_LVL_VALID) ? "new msg" : "no new msg");
1162 printk("silence_lvl: %d [%s], ", m.mmr_silence_lvl & MMR_SILENCE_LVL,
1163 (m.mmr_silence_lvl & MMR_SILENCE_LVL_VALID) ? "update done" : "no new update");
1164 printk("sgnl_qual: 0x%x [%s]\n", m.mmr_sgnl_qual & MMR_SGNL_QUAL,
1165 (m.mmr_sgnl_qual & MMR_SGNL_QUAL_ANT) ? "Antenna 1" : "Antenna 0");
1166 #ifdef DEBUG_SHOW_UNUSED
1167 printk(KERN_DEBUG "netw_id_l: %x\n", m.mmr_netw_id_l);
1168 #endif /* DEBUG_SHOW_UNUSED */
1169 } /* wv_mmc_show */
1170 #endif /* DEBUG_MMC_SHOW */
1172 #ifdef DEBUG_I82593_SHOW
1173 /*------------------------------------------------------------------*/
1175 * Print the formatted status of the i82593's receive unit.
1177 static void
1178 wv_ru_show(struct net_device * dev)
1180 net_local *lp = netdev_priv(dev);
1182 printk(KERN_DEBUG "##### wavelan i82593 receiver status: #####\n");
1183 printk(KERN_DEBUG "ru: rfp %d stop %d", lp->rfp, lp->stop);
1185 * Not implemented yet...
1187 printk("\n");
1188 } /* wv_ru_show */
1189 #endif /* DEBUG_I82593_SHOW */
1191 #ifdef DEBUG_DEVICE_SHOW
1192 /*------------------------------------------------------------------*/
1194 * Print the formatted status of the WaveLAN PCMCIA device driver.
1196 static void
1197 wv_dev_show(struct net_device * dev)
1199 printk(KERN_DEBUG "dev:");
1200 printk(" state=%lX,", dev->state);
1201 printk(" trans_start=%ld,", dev->trans_start);
1202 printk(" flags=0x%x,", dev->flags);
1203 printk("\n");
1204 } /* wv_dev_show */
1206 /*------------------------------------------------------------------*/
1208 * Print the formatted status of the WaveLAN PCMCIA device driver's
1209 * private information.
1211 static void
1212 wv_local_show(struct net_device * dev)
1214 net_local *lp = netdev_priv(dev);
1216 printk(KERN_DEBUG "local:");
1218 * Not implemented yet...
1220 printk("\n");
1221 } /* wv_local_show */
1222 #endif /* DEBUG_DEVICE_SHOW */
1224 #if defined(DEBUG_RX_INFO) || defined(DEBUG_TX_INFO)
1225 /*------------------------------------------------------------------*/
1227 * Dump packet header (and content if necessary) on the screen
1229 static void
1230 wv_packet_info(u_char * p, /* Packet to dump */
1231 int length, /* Length of the packet */
1232 char * msg1, /* Name of the device */
1233 char * msg2) /* Name of the function */
1235 int i;
1236 int maxi;
1238 printk(KERN_DEBUG "%s: %s(): dest %pM, length %d\n",
1239 msg1, msg2, p, length);
1240 printk(KERN_DEBUG "%s: %s(): src %pM, type 0x%02X%02X\n",
1241 msg1, msg2, &p[6], p[12], p[13]);
1243 #ifdef DEBUG_PACKET_DUMP
1245 printk(KERN_DEBUG "data=\"");
1247 if((maxi = length) > DEBUG_PACKET_DUMP)
1248 maxi = DEBUG_PACKET_DUMP;
1249 for(i = 14; i < maxi; i++)
1250 if(p[i] >= ' ' && p[i] <= '~')
1251 printk(" %c", p[i]);
1252 else
1253 printk("%02X", p[i]);
1254 if(maxi < length)
1255 printk("..");
1256 printk("\"\n");
1257 printk(KERN_DEBUG "\n");
1258 #endif /* DEBUG_PACKET_DUMP */
1260 #endif /* defined(DEBUG_RX_INFO) || defined(DEBUG_TX_INFO) */
1262 /*------------------------------------------------------------------*/
1264 * This is the information which is displayed by the driver at startup
1265 * There is a lot of flag to configure it at your will...
1267 static void
1268 wv_init_info(struct net_device * dev)
1270 unsigned int base = dev->base_addr;
1271 psa_t psa;
1273 /* Read the parameter storage area */
1274 psa_read(dev, 0, (unsigned char *) &psa, sizeof(psa));
1276 #ifdef DEBUG_PSA_SHOW
1277 wv_psa_show(&psa);
1278 #endif
1279 #ifdef DEBUG_MMC_SHOW
1280 wv_mmc_show(dev);
1281 #endif
1282 #ifdef DEBUG_I82593_SHOW
1283 wv_ru_show(dev);
1284 #endif
1286 #ifdef DEBUG_BASIC_SHOW
1287 /* Now, let's go for the basic stuff */
1288 printk(KERN_NOTICE "%s: WaveLAN: port %#x, irq %d, hw_addr %pM",
1289 dev->name, base, dev->irq, dev->dev_addr);
1291 /* Print current network id */
1292 if(psa.psa_nwid_select)
1293 printk(", nwid 0x%02X-%02X", psa.psa_nwid[0], psa.psa_nwid[1]);
1294 else
1295 printk(", nwid off");
1297 /* If 2.00 card */
1298 if(!(mmc_in(base, mmroff(0, mmr_fee_status)) &
1299 (MMR_FEE_STATUS_DWLD | MMR_FEE_STATUS_BUSY)))
1301 unsigned short freq;
1303 /* Ask the EEprom to read the frequency from the first area */
1304 fee_read(base, 0x00 /* 1st area - frequency... */,
1305 &freq, 1);
1307 /* Print frequency */
1308 printk(", 2.00, %ld", (freq >> 6) + 2400L);
1310 /* Hack !!! */
1311 if(freq & 0x20)
1312 printk(".5");
1314 else
1316 printk(", PCMCIA, ");
1317 switch (psa.psa_subband)
1319 case PSA_SUBBAND_915:
1320 printk("915");
1321 break;
1322 case PSA_SUBBAND_2425:
1323 printk("2425");
1324 break;
1325 case PSA_SUBBAND_2460:
1326 printk("2460");
1327 break;
1328 case PSA_SUBBAND_2484:
1329 printk("2484");
1330 break;
1331 case PSA_SUBBAND_2430_5:
1332 printk("2430.5");
1333 break;
1334 default:
1335 printk("unknown");
1339 printk(" MHz\n");
1340 #endif /* DEBUG_BASIC_SHOW */
1342 #ifdef DEBUG_VERSION_SHOW
1343 /* Print version information */
1344 printk(KERN_NOTICE "%s", version);
1345 #endif
1346 } /* wv_init_info */
1348 /********************* IOCTL, STATS & RECONFIG *********************/
1350 * We found here routines that are called by Linux on differents
1351 * occasions after the configuration and not for transmitting data
1352 * These may be called when the user use ifconfig, /proc/net/dev
1353 * or wireless extensions
1356 /*------------------------------------------------------------------*/
1358 * Get the current ethernet statistics. This may be called with the
1359 * card open or closed.
1360 * Used when the user read /proc/net/dev
1362 static en_stats *
1363 wavelan_get_stats(struct net_device * dev)
1365 #ifdef DEBUG_IOCTL_TRACE
1366 printk(KERN_DEBUG "%s: <>wavelan_get_stats()\n", dev->name);
1367 #endif
1369 return(&((net_local *)netdev_priv(dev))->stats);
1372 /*------------------------------------------------------------------*/
1374 * Set or clear the multicast filter for this adaptor.
1375 * num_addrs == -1 Promiscuous mode, receive all packets
1376 * num_addrs == 0 Normal mode, clear multicast list
1377 * num_addrs > 0 Multicast mode, receive normal and MC packets,
1378 * and do best-effort filtering.
1381 static void
1382 wavelan_set_multicast_list(struct net_device * dev)
1384 net_local * lp = netdev_priv(dev);
1386 #ifdef DEBUG_IOCTL_TRACE
1387 printk(KERN_DEBUG "%s: ->wavelan_set_multicast_list()\n", dev->name);
1388 #endif
1390 #ifdef DEBUG_IOCTL_INFO
1391 printk(KERN_DEBUG "%s: wavelan_set_multicast_list(): setting Rx mode %02X to %d addresses.\n",
1392 dev->name, dev->flags, dev->mc_count);
1393 #endif
1395 if(dev->flags & IFF_PROMISC)
1398 * Enable promiscuous mode: receive all packets.
1400 if(!lp->promiscuous)
1402 lp->promiscuous = 1;
1403 lp->allmulticast = 0;
1404 lp->mc_count = 0;
1406 wv_82593_reconfig(dev);
1409 else
1410 /* If all multicast addresses
1411 * or too much multicast addresses for the hardware filter */
1412 if((dev->flags & IFF_ALLMULTI) ||
1413 (dev->mc_count > I82593_MAX_MULTICAST_ADDRESSES))
1416 * Disable promiscuous mode, but active the all multicast mode
1418 if(!lp->allmulticast)
1420 lp->promiscuous = 0;
1421 lp->allmulticast = 1;
1422 lp->mc_count = 0;
1424 wv_82593_reconfig(dev);
1427 else
1428 /* If there is some multicast addresses to send */
1429 if(dev->mc_list != (struct dev_mc_list *) NULL)
1432 * Disable promiscuous mode, but receive all packets
1433 * in multicast list
1435 #ifdef MULTICAST_AVOID
1436 if(lp->promiscuous || lp->allmulticast ||
1437 (dev->mc_count != lp->mc_count))
1438 #endif
1440 lp->promiscuous = 0;
1441 lp->allmulticast = 0;
1442 lp->mc_count = dev->mc_count;
1444 wv_82593_reconfig(dev);
1447 else
1450 * Switch to normal mode: disable promiscuous mode and
1451 * clear the multicast list.
1453 if(lp->promiscuous || lp->mc_count == 0)
1455 lp->promiscuous = 0;
1456 lp->allmulticast = 0;
1457 lp->mc_count = 0;
1459 wv_82593_reconfig(dev);
1462 #ifdef DEBUG_IOCTL_TRACE
1463 printk(KERN_DEBUG "%s: <-wavelan_set_multicast_list()\n", dev->name);
1464 #endif
1467 /*------------------------------------------------------------------*/
1469 * This function doesn't exist...
1470 * (Note : it was a nice way to test the reconfigure stuff...)
1472 #ifdef SET_MAC_ADDRESS
1473 static int
1474 wavelan_set_mac_address(struct net_device * dev,
1475 void * addr)
1477 struct sockaddr * mac = addr;
1479 /* Copy the address */
1480 memcpy(dev->dev_addr, mac->sa_data, WAVELAN_ADDR_SIZE);
1482 /* Reconfig the beast */
1483 wv_82593_reconfig(dev);
1485 return 0;
1487 #endif /* SET_MAC_ADDRESS */
1490 /*------------------------------------------------------------------*/
1492 * Frequency setting (for hardware able of it)
1493 * It's a bit complicated and you don't really want to look into it...
1495 static int
1496 wv_set_frequency(u_long base, /* i/o port of the card */
1497 iw_freq * frequency)
1499 const int BAND_NUM = 10; /* Number of bands */
1500 long freq = 0L; /* offset to 2.4 GHz in .5 MHz */
1501 #ifdef DEBUG_IOCTL_INFO
1502 int i;
1503 #endif
1505 /* Setting by frequency */
1506 /* Theoritically, you may set any frequency between
1507 * the two limits with a 0.5 MHz precision. In practice,
1508 * I don't want you to have trouble with local
1509 * regulations... */
1510 if((frequency->e == 1) &&
1511 (frequency->m >= (int) 2.412e8) && (frequency->m <= (int) 2.487e8))
1513 freq = ((frequency->m / 10000) - 24000L) / 5;
1516 /* Setting by channel (same as wfreqsel) */
1517 /* Warning : each channel is 22MHz wide, so some of the channels
1518 * will interfere... */
1519 if((frequency->e == 0) &&
1520 (frequency->m >= 0) && (frequency->m < BAND_NUM))
1522 /* Get frequency offset. */
1523 freq = channel_bands[frequency->m] >> 1;
1526 /* Verify if the frequency is allowed */
1527 if(freq != 0L)
1529 u_short table[10]; /* Authorized frequency table */
1531 /* Read the frequency table */
1532 fee_read(base, 0x71 /* frequency table */,
1533 table, 10);
1535 #ifdef DEBUG_IOCTL_INFO
1536 printk(KERN_DEBUG "Frequency table :");
1537 for(i = 0; i < 10; i++)
1539 printk(" %04X",
1540 table[i]);
1542 printk("\n");
1543 #endif
1545 /* Look in the table if the frequency is allowed */
1546 if(!(table[9 - ((freq - 24) / 16)] &
1547 (1 << ((freq - 24) % 16))))
1548 return -EINVAL; /* not allowed */
1550 else
1551 return -EINVAL;
1553 /* If we get a usable frequency */
1554 if(freq != 0L)
1556 unsigned short area[16];
1557 unsigned short dac[2];
1558 unsigned short area_verify[16];
1559 unsigned short dac_verify[2];
1560 /* Corresponding gain (in the power adjust value table)
1561 * see AT&T Wavelan Data Manual, REF 407-024689/E, page 3-8
1562 * & WCIN062D.DOC, page 6.2.9 */
1563 unsigned short power_limit[] = { 40, 80, 120, 160, 0 };
1564 int power_band = 0; /* Selected band */
1565 unsigned short power_adjust; /* Correct value */
1567 /* Search for the gain */
1568 power_band = 0;
1569 while((freq > power_limit[power_band]) &&
1570 (power_limit[++power_band] != 0))
1573 /* Read the first area */
1574 fee_read(base, 0x00,
1575 area, 16);
1577 /* Read the DAC */
1578 fee_read(base, 0x60,
1579 dac, 2);
1581 /* Read the new power adjust value */
1582 fee_read(base, 0x6B - (power_band >> 1),
1583 &power_adjust, 1);
1584 if(power_band & 0x1)
1585 power_adjust >>= 8;
1586 else
1587 power_adjust &= 0xFF;
1589 #ifdef DEBUG_IOCTL_INFO
1590 printk(KERN_DEBUG "Wavelan EEprom Area 1 :");
1591 for(i = 0; i < 16; i++)
1593 printk(" %04X",
1594 area[i]);
1596 printk("\n");
1598 printk(KERN_DEBUG "Wavelan EEprom DAC : %04X %04X\n",
1599 dac[0], dac[1]);
1600 #endif
1602 /* Frequency offset (for info only...) */
1603 area[0] = ((freq << 5) & 0xFFE0) | (area[0] & 0x1F);
1605 /* Receiver Principle main divider coefficient */
1606 area[3] = (freq >> 1) + 2400L - 352L;
1607 area[2] = ((freq & 0x1) << 4) | (area[2] & 0xFFEF);
1609 /* Transmitter Main divider coefficient */
1610 area[13] = (freq >> 1) + 2400L;
1611 area[12] = ((freq & 0x1) << 4) | (area[2] & 0xFFEF);
1613 /* Others part of the area are flags, bit streams or unused... */
1615 /* Set the value in the DAC */
1616 dac[1] = ((power_adjust >> 1) & 0x7F) | (dac[1] & 0xFF80);
1617 dac[0] = ((power_adjust & 0x1) << 4) | (dac[0] & 0xFFEF);
1619 /* Write the first area */
1620 fee_write(base, 0x00,
1621 area, 16);
1623 /* Write the DAC */
1624 fee_write(base, 0x60,
1625 dac, 2);
1627 /* We now should verify here that the EEprom writing was ok */
1629 /* ReRead the first area */
1630 fee_read(base, 0x00,
1631 area_verify, 16);
1633 /* ReRead the DAC */
1634 fee_read(base, 0x60,
1635 dac_verify, 2);
1637 /* Compare */
1638 if(memcmp(area, area_verify, 16 * 2) ||
1639 memcmp(dac, dac_verify, 2 * 2))
1641 #ifdef DEBUG_IOCTL_ERROR
1642 printk(KERN_INFO "Wavelan: wv_set_frequency : unable to write new frequency to EEprom (?)\n");
1643 #endif
1644 return -EOPNOTSUPP;
1647 /* We must download the frequency parameters to the
1648 * synthetisers (from the EEprom - area 1)
1649 * Note : as the EEprom is auto decremented, we set the end
1650 * if the area... */
1651 mmc_out(base, mmwoff(0, mmw_fee_addr), 0x0F);
1652 mmc_out(base, mmwoff(0, mmw_fee_ctrl),
1653 MMW_FEE_CTRL_READ | MMW_FEE_CTRL_DWLD);
1655 /* Wait until the download is finished */
1656 fee_wait(base, 100, 100);
1658 /* We must now download the power adjust value (gain) to
1659 * the synthetisers (from the EEprom - area 7 - DAC) */
1660 mmc_out(base, mmwoff(0, mmw_fee_addr), 0x61);
1661 mmc_out(base, mmwoff(0, mmw_fee_ctrl),
1662 MMW_FEE_CTRL_READ | MMW_FEE_CTRL_DWLD);
1664 /* Wait until the download is finished */
1665 fee_wait(base, 100, 100);
1667 #ifdef DEBUG_IOCTL_INFO
1668 /* Verification of what we have done... */
1670 printk(KERN_DEBUG "Wavelan EEprom Area 1 :");
1671 for(i = 0; i < 16; i++)
1673 printk(" %04X",
1674 area_verify[i]);
1676 printk("\n");
1678 printk(KERN_DEBUG "Wavelan EEprom DAC : %04X %04X\n",
1679 dac_verify[0], dac_verify[1]);
1680 #endif
1682 return 0;
1684 else
1685 return -EINVAL; /* Bah, never get there... */
1688 /*------------------------------------------------------------------*/
1690 * Give the list of available frequencies
1692 static int
1693 wv_frequency_list(u_long base, /* i/o port of the card */
1694 iw_freq * list, /* List of frequency to fill */
1695 int max) /* Maximum number of frequencies */
1697 u_short table[10]; /* Authorized frequency table */
1698 long freq = 0L; /* offset to 2.4 GHz in .5 MHz + 12 MHz */
1699 int i; /* index in the table */
1700 const int BAND_NUM = 10; /* Number of bands */
1701 int c = 0; /* Channel number */
1703 /* Read the frequency table */
1704 fee_read(base, 0x71 /* frequency table */,
1705 table, 10);
1707 /* Look all frequencies */
1708 i = 0;
1709 for(freq = 0; freq < 150; freq++)
1710 /* Look in the table if the frequency is allowed */
1711 if(table[9 - (freq / 16)] & (1 << (freq % 16)))
1713 /* Compute approximate channel number */
1714 while((((channel_bands[c] >> 1) - 24) < freq) &&
1715 (c < BAND_NUM))
1716 c++;
1717 list[i].i = c; /* Set the list index */
1719 /* put in the list */
1720 list[i].m = (((freq + 24) * 5) + 24000L) * 10000;
1721 list[i++].e = 1;
1723 /* Check number */
1724 if(i >= max)
1725 return(i);
1728 return(i);
1731 #ifdef IW_WIRELESS_SPY
1732 /*------------------------------------------------------------------*/
1734 * Gather wireless spy statistics : for each packet, compare the source
1735 * address with out list, and if match, get the stats...
1736 * Sorry, but this function really need wireless extensions...
1738 static inline void
1739 wl_spy_gather(struct net_device * dev,
1740 u_char * mac, /* MAC address */
1741 u_char * stats) /* Statistics to gather */
1743 struct iw_quality wstats;
1745 wstats.qual = stats[2] & MMR_SGNL_QUAL;
1746 wstats.level = stats[0] & MMR_SIGNAL_LVL;
1747 wstats.noise = stats[1] & MMR_SILENCE_LVL;
1748 wstats.updated = 0x7;
1750 /* Update spy records */
1751 wireless_spy_update(dev, mac, &wstats);
1753 #endif /* IW_WIRELESS_SPY */
1755 #ifdef HISTOGRAM
1756 /*------------------------------------------------------------------*/
1758 * This function calculate an histogram on the signal level.
1759 * As the noise is quite constant, it's like doing it on the SNR.
1760 * We have defined a set of interval (lp->his_range), and each time
1761 * the level goes in that interval, we increment the count (lp->his_sum).
1762 * With this histogram you may detect if one wavelan is really weak,
1763 * or you may also calculate the mean and standard deviation of the level...
1765 static inline void
1766 wl_his_gather(struct net_device * dev,
1767 u_char * stats) /* Statistics to gather */
1769 net_local * lp = netdev_priv(dev);
1770 u_char level = stats[0] & MMR_SIGNAL_LVL;
1771 int i;
1773 /* Find the correct interval */
1774 i = 0;
1775 while((i < (lp->his_number - 1)) && (level >= lp->his_range[i++]))
1778 /* Increment interval counter */
1779 (lp->his_sum[i])++;
1781 #endif /* HISTOGRAM */
1783 static void wl_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
1785 strncpy(info->driver, "wavelan_cs", sizeof(info->driver)-1);
1788 static const struct ethtool_ops ops = {
1789 .get_drvinfo = wl_get_drvinfo
1792 /*------------------------------------------------------------------*/
1794 * Wireless Handler : get protocol name
1796 static int wavelan_get_name(struct net_device *dev,
1797 struct iw_request_info *info,
1798 union iwreq_data *wrqu,
1799 char *extra)
1801 strcpy(wrqu->name, "WaveLAN");
1802 return 0;
1805 /*------------------------------------------------------------------*/
1807 * Wireless Handler : set NWID
1809 static int wavelan_set_nwid(struct net_device *dev,
1810 struct iw_request_info *info,
1811 union iwreq_data *wrqu,
1812 char *extra)
1814 unsigned int base = dev->base_addr;
1815 net_local *lp = netdev_priv(dev);
1816 psa_t psa;
1817 mm_t m;
1818 unsigned long flags;
1819 int ret = 0;
1821 /* Disable interrupts and save flags. */
1822 spin_lock_irqsave(&lp->spinlock, flags);
1824 /* Set NWID in WaveLAN. */
1825 if (!wrqu->nwid.disabled) {
1826 /* Set NWID in psa */
1827 psa.psa_nwid[0] = (wrqu->nwid.value & 0xFF00) >> 8;
1828 psa.psa_nwid[1] = wrqu->nwid.value & 0xFF;
1829 psa.psa_nwid_select = 0x01;
1830 psa_write(dev,
1831 (char *) psa.psa_nwid - (char *) &psa,
1832 (unsigned char *) psa.psa_nwid, 3);
1834 /* Set NWID in mmc. */
1835 m.w.mmw_netw_id_l = psa.psa_nwid[1];
1836 m.w.mmw_netw_id_h = psa.psa_nwid[0];
1837 mmc_write(base,
1838 (char *) &m.w.mmw_netw_id_l -
1839 (char *) &m,
1840 (unsigned char *) &m.w.mmw_netw_id_l, 2);
1841 mmc_out(base, mmwoff(0, mmw_loopt_sel), 0x00);
1842 } else {
1843 /* Disable NWID in the psa. */
1844 psa.psa_nwid_select = 0x00;
1845 psa_write(dev,
1846 (char *) &psa.psa_nwid_select -
1847 (char *) &psa,
1848 (unsigned char *) &psa.psa_nwid_select,
1851 /* Disable NWID in the mmc (no filtering). */
1852 mmc_out(base, mmwoff(0, mmw_loopt_sel),
1853 MMW_LOOPT_SEL_DIS_NWID);
1855 /* update the Wavelan checksum */
1856 update_psa_checksum(dev);
1858 /* Enable interrupts and restore flags. */
1859 spin_unlock_irqrestore(&lp->spinlock, flags);
1861 return ret;
1864 /*------------------------------------------------------------------*/
1866 * Wireless Handler : get NWID
1868 static int wavelan_get_nwid(struct net_device *dev,
1869 struct iw_request_info *info,
1870 union iwreq_data *wrqu,
1871 char *extra)
1873 net_local *lp = netdev_priv(dev);
1874 psa_t psa;
1875 unsigned long flags;
1876 int ret = 0;
1878 /* Disable interrupts and save flags. */
1879 spin_lock_irqsave(&lp->spinlock, flags);
1881 /* Read the NWID. */
1882 psa_read(dev,
1883 (char *) psa.psa_nwid - (char *) &psa,
1884 (unsigned char *) psa.psa_nwid, 3);
1885 wrqu->nwid.value = (psa.psa_nwid[0] << 8) + psa.psa_nwid[1];
1886 wrqu->nwid.disabled = !(psa.psa_nwid_select);
1887 wrqu->nwid.fixed = 1; /* Superfluous */
1889 /* Enable interrupts and restore flags. */
1890 spin_unlock_irqrestore(&lp->spinlock, flags);
1892 return ret;
1895 /*------------------------------------------------------------------*/
1897 * Wireless Handler : set frequency
1899 static int wavelan_set_freq(struct net_device *dev,
1900 struct iw_request_info *info,
1901 union iwreq_data *wrqu,
1902 char *extra)
1904 unsigned int base = dev->base_addr;
1905 net_local *lp = netdev_priv(dev);
1906 unsigned long flags;
1907 int ret;
1909 /* Disable interrupts and save flags. */
1910 spin_lock_irqsave(&lp->spinlock, flags);
1912 /* Attempt to recognise 2.00 cards (2.4 GHz frequency selectable). */
1913 if (!(mmc_in(base, mmroff(0, mmr_fee_status)) &
1914 (MMR_FEE_STATUS_DWLD | MMR_FEE_STATUS_BUSY)))
1915 ret = wv_set_frequency(base, &(wrqu->freq));
1916 else
1917 ret = -EOPNOTSUPP;
1919 /* Enable interrupts and restore flags. */
1920 spin_unlock_irqrestore(&lp->spinlock, flags);
1922 return ret;
1925 /*------------------------------------------------------------------*/
1927 * Wireless Handler : get frequency
1929 static int wavelan_get_freq(struct net_device *dev,
1930 struct iw_request_info *info,
1931 union iwreq_data *wrqu,
1932 char *extra)
1934 unsigned int base = dev->base_addr;
1935 net_local *lp = netdev_priv(dev);
1936 psa_t psa;
1937 unsigned long flags;
1938 int ret = 0;
1940 /* Disable interrupts and save flags. */
1941 spin_lock_irqsave(&lp->spinlock, flags);
1943 /* Attempt to recognise 2.00 cards (2.4 GHz frequency selectable).
1944 * Does it work for everybody, especially old cards? */
1945 if (!(mmc_in(base, mmroff(0, mmr_fee_status)) &
1946 (MMR_FEE_STATUS_DWLD | MMR_FEE_STATUS_BUSY))) {
1947 unsigned short freq;
1949 /* Ask the EEPROM to read the frequency from the first area. */
1950 fee_read(base, 0x00, &freq, 1);
1951 wrqu->freq.m = ((freq >> 5) * 5 + 24000L) * 10000;
1952 wrqu->freq.e = 1;
1953 } else {
1954 psa_read(dev,
1955 (char *) &psa.psa_subband - (char *) &psa,
1956 (unsigned char *) &psa.psa_subband, 1);
1958 if (psa.psa_subband <= 4) {
1959 wrqu->freq.m = fixed_bands[psa.psa_subband];
1960 wrqu->freq.e = (psa.psa_subband != 0);
1961 } else
1962 ret = -EOPNOTSUPP;
1965 /* Enable interrupts and restore flags. */
1966 spin_unlock_irqrestore(&lp->spinlock, flags);
1968 return ret;
1971 /*------------------------------------------------------------------*/
1973 * Wireless Handler : set level threshold
1975 static int wavelan_set_sens(struct net_device *dev,
1976 struct iw_request_info *info,
1977 union iwreq_data *wrqu,
1978 char *extra)
1980 unsigned int base = dev->base_addr;
1981 net_local *lp = netdev_priv(dev);
1982 psa_t psa;
1983 unsigned long flags;
1984 int ret = 0;
1986 /* Disable interrupts and save flags. */
1987 spin_lock_irqsave(&lp->spinlock, flags);
1989 /* Set the level threshold. */
1990 /* We should complain loudly if wrqu->sens.fixed = 0, because we
1991 * can't set auto mode... */
1992 psa.psa_thr_pre_set = wrqu->sens.value & 0x3F;
1993 psa_write(dev,
1994 (char *) &psa.psa_thr_pre_set - (char *) &psa,
1995 (unsigned char *) &psa.psa_thr_pre_set, 1);
1996 /* update the Wavelan checksum */
1997 update_psa_checksum(dev);
1998 mmc_out(base, mmwoff(0, mmw_thr_pre_set),
1999 psa.psa_thr_pre_set);
2001 /* Enable interrupts and restore flags. */
2002 spin_unlock_irqrestore(&lp->spinlock, flags);
2004 return ret;
2007 /*------------------------------------------------------------------*/
2009 * Wireless Handler : get level threshold
2011 static int wavelan_get_sens(struct net_device *dev,
2012 struct iw_request_info *info,
2013 union iwreq_data *wrqu,
2014 char *extra)
2016 net_local *lp = netdev_priv(dev);
2017 psa_t psa;
2018 unsigned long flags;
2019 int ret = 0;
2021 /* Disable interrupts and save flags. */
2022 spin_lock_irqsave(&lp->spinlock, flags);
2024 /* Read the level threshold. */
2025 psa_read(dev,
2026 (char *) &psa.psa_thr_pre_set - (char *) &psa,
2027 (unsigned char *) &psa.psa_thr_pre_set, 1);
2028 wrqu->sens.value = psa.psa_thr_pre_set & 0x3F;
2029 wrqu->sens.fixed = 1;
2031 /* Enable interrupts and restore flags. */
2032 spin_unlock_irqrestore(&lp->spinlock, flags);
2034 return ret;
2037 /*------------------------------------------------------------------*/
2039 * Wireless Handler : set encryption key
2041 static int wavelan_set_encode(struct net_device *dev,
2042 struct iw_request_info *info,
2043 union iwreq_data *wrqu,
2044 char *extra)
2046 unsigned int base = dev->base_addr;
2047 net_local *lp = netdev_priv(dev);
2048 unsigned long flags;
2049 psa_t psa;
2050 int ret = 0;
2052 /* Disable interrupts and save flags. */
2053 spin_lock_irqsave(&lp->spinlock, flags);
2055 /* Check if capable of encryption */
2056 if (!mmc_encr(base)) {
2057 ret = -EOPNOTSUPP;
2060 /* Check the size of the key */
2061 if((wrqu->encoding.length != 8) && (wrqu->encoding.length != 0)) {
2062 ret = -EINVAL;
2065 if(!ret) {
2066 /* Basic checking... */
2067 if (wrqu->encoding.length == 8) {
2068 /* Copy the key in the driver */
2069 memcpy(psa.psa_encryption_key, extra,
2070 wrqu->encoding.length);
2071 psa.psa_encryption_select = 1;
2073 psa_write(dev,
2074 (char *) &psa.psa_encryption_select -
2075 (char *) &psa,
2076 (unsigned char *) &psa.
2077 psa_encryption_select, 8 + 1);
2079 mmc_out(base, mmwoff(0, mmw_encr_enable),
2080 MMW_ENCR_ENABLE_EN | MMW_ENCR_ENABLE_MODE);
2081 mmc_write(base, mmwoff(0, mmw_encr_key),
2082 (unsigned char *) &psa.
2083 psa_encryption_key, 8);
2086 /* disable encryption */
2087 if (wrqu->encoding.flags & IW_ENCODE_DISABLED) {
2088 psa.psa_encryption_select = 0;
2089 psa_write(dev,
2090 (char *) &psa.psa_encryption_select -
2091 (char *) &psa,
2092 (unsigned char *) &psa.
2093 psa_encryption_select, 1);
2095 mmc_out(base, mmwoff(0, mmw_encr_enable), 0);
2097 /* update the Wavelan checksum */
2098 update_psa_checksum(dev);
2101 /* Enable interrupts and restore flags. */
2102 spin_unlock_irqrestore(&lp->spinlock, flags);
2104 return ret;
2107 /*------------------------------------------------------------------*/
2109 * Wireless Handler : get encryption key
2111 static int wavelan_get_encode(struct net_device *dev,
2112 struct iw_request_info *info,
2113 union iwreq_data *wrqu,
2114 char *extra)
2116 unsigned int base = dev->base_addr;
2117 net_local *lp = netdev_priv(dev);
2118 psa_t psa;
2119 unsigned long flags;
2120 int ret = 0;
2122 /* Disable interrupts and save flags. */
2123 spin_lock_irqsave(&lp->spinlock, flags);
2125 /* Check if encryption is available */
2126 if (!mmc_encr(base)) {
2127 ret = -EOPNOTSUPP;
2128 } else {
2129 /* Read the encryption key */
2130 psa_read(dev,
2131 (char *) &psa.psa_encryption_select -
2132 (char *) &psa,
2133 (unsigned char *) &psa.
2134 psa_encryption_select, 1 + 8);
2136 /* encryption is enabled ? */
2137 if (psa.psa_encryption_select)
2138 wrqu->encoding.flags = IW_ENCODE_ENABLED;
2139 else
2140 wrqu->encoding.flags = IW_ENCODE_DISABLED;
2141 wrqu->encoding.flags |= mmc_encr(base);
2143 /* Copy the key to the user buffer */
2144 wrqu->encoding.length = 8;
2145 memcpy(extra, psa.psa_encryption_key, wrqu->encoding.length);
2148 /* Enable interrupts and restore flags. */
2149 spin_unlock_irqrestore(&lp->spinlock, flags);
2151 return ret;
2154 #ifdef WAVELAN_ROAMING_EXT
2155 /*------------------------------------------------------------------*/
2157 * Wireless Handler : set ESSID (domain)
2159 static int wavelan_set_essid(struct net_device *dev,
2160 struct iw_request_info *info,
2161 union iwreq_data *wrqu,
2162 char *extra)
2164 net_local *lp = netdev_priv(dev);
2165 unsigned long flags;
2166 int ret = 0;
2168 /* Disable interrupts and save flags. */
2169 spin_lock_irqsave(&lp->spinlock, flags);
2171 /* Check if disable */
2172 if(wrqu->data.flags == 0)
2173 lp->filter_domains = 0;
2174 else {
2175 char essid[IW_ESSID_MAX_SIZE + 1];
2176 char * endp;
2178 /* Terminate the string */
2179 memcpy(essid, extra, wrqu->data.length);
2180 essid[IW_ESSID_MAX_SIZE] = '\0';
2182 #ifdef DEBUG_IOCTL_INFO
2183 printk(KERN_DEBUG "SetEssid : ``%s''\n", essid);
2184 #endif /* DEBUG_IOCTL_INFO */
2186 /* Convert to a number (note : Wavelan specific) */
2187 lp->domain_id = simple_strtoul(essid, &endp, 16);
2188 /* Has it worked ? */
2189 if(endp > essid)
2190 lp->filter_domains = 1;
2191 else {
2192 lp->filter_domains = 0;
2193 ret = -EINVAL;
2197 /* Enable interrupts and restore flags. */
2198 spin_unlock_irqrestore(&lp->spinlock, flags);
2200 return ret;
2203 /*------------------------------------------------------------------*/
2205 * Wireless Handler : get ESSID (domain)
2207 static int wavelan_get_essid(struct net_device *dev,
2208 struct iw_request_info *info,
2209 union iwreq_data *wrqu,
2210 char *extra)
2212 net_local *lp = netdev_priv(dev);
2214 /* Is the domain ID active ? */
2215 wrqu->data.flags = lp->filter_domains;
2217 /* Copy Domain ID into a string (Wavelan specific) */
2218 /* Sound crazy, be we can't have a snprintf in the kernel !!! */
2219 sprintf(extra, "%lX", lp->domain_id);
2220 extra[IW_ESSID_MAX_SIZE] = '\0';
2222 /* Set the length */
2223 wrqu->data.length = strlen(extra);
2225 return 0;
2228 /*------------------------------------------------------------------*/
2230 * Wireless Handler : set AP address
2232 static int wavelan_set_wap(struct net_device *dev,
2233 struct iw_request_info *info,
2234 union iwreq_data *wrqu,
2235 char *extra)
2237 #ifdef DEBUG_IOCTL_INFO
2238 printk(KERN_DEBUG "Set AP to : %pM\n", wrqu->ap_addr.sa_data);
2239 #endif /* DEBUG_IOCTL_INFO */
2241 return -EOPNOTSUPP;
2244 /*------------------------------------------------------------------*/
2246 * Wireless Handler : get AP address
2248 static int wavelan_get_wap(struct net_device *dev,
2249 struct iw_request_info *info,
2250 union iwreq_data *wrqu,
2251 char *extra)
2253 /* Should get the real McCoy instead of own Ethernet address */
2254 memcpy(wrqu->ap_addr.sa_data, dev->dev_addr, WAVELAN_ADDR_SIZE);
2255 wrqu->ap_addr.sa_family = ARPHRD_ETHER;
2257 return -EOPNOTSUPP;
2259 #endif /* WAVELAN_ROAMING_EXT */
2261 #ifdef WAVELAN_ROAMING
2262 /*------------------------------------------------------------------*/
2264 * Wireless Handler : set mode
2266 static int wavelan_set_mode(struct net_device *dev,
2267 struct iw_request_info *info,
2268 union iwreq_data *wrqu,
2269 char *extra)
2271 net_local *lp = netdev_priv(dev);
2272 unsigned long flags;
2273 int ret = 0;
2275 /* Disable interrupts and save flags. */
2276 spin_lock_irqsave(&lp->spinlock, flags);
2278 /* Check mode */
2279 switch(wrqu->mode) {
2280 case IW_MODE_ADHOC:
2281 if(do_roaming) {
2282 wv_roam_cleanup(dev);
2283 do_roaming = 0;
2285 break;
2286 case IW_MODE_INFRA:
2287 if(!do_roaming) {
2288 wv_roam_init(dev);
2289 do_roaming = 1;
2291 break;
2292 default:
2293 ret = -EINVAL;
2296 /* Enable interrupts and restore flags. */
2297 spin_unlock_irqrestore(&lp->spinlock, flags);
2299 return ret;
2302 /*------------------------------------------------------------------*/
2304 * Wireless Handler : get mode
2306 static int wavelan_get_mode(struct net_device *dev,
2307 struct iw_request_info *info,
2308 union iwreq_data *wrqu,
2309 char *extra)
2311 if(do_roaming)
2312 wrqu->mode = IW_MODE_INFRA;
2313 else
2314 wrqu->mode = IW_MODE_ADHOC;
2316 return 0;
2318 #endif /* WAVELAN_ROAMING */
2320 /*------------------------------------------------------------------*/
2322 * Wireless Handler : get range info
2324 static int wavelan_get_range(struct net_device *dev,
2325 struct iw_request_info *info,
2326 union iwreq_data *wrqu,
2327 char *extra)
2329 unsigned int base = dev->base_addr;
2330 net_local *lp = netdev_priv(dev);
2331 struct iw_range *range = (struct iw_range *) extra;
2332 unsigned long flags;
2333 int ret = 0;
2335 /* Set the length (very important for backward compatibility) */
2336 wrqu->data.length = sizeof(struct iw_range);
2338 /* Set all the info we don't care or don't know about to zero */
2339 memset(range, 0, sizeof(struct iw_range));
2341 /* Set the Wireless Extension versions */
2342 range->we_version_compiled = WIRELESS_EXT;
2343 range->we_version_source = 9;
2345 /* Set information in the range struct. */
2346 range->throughput = 1.4 * 1000 * 1000; /* don't argue on this ! */
2347 range->min_nwid = 0x0000;
2348 range->max_nwid = 0xFFFF;
2350 range->sensitivity = 0x3F;
2351 range->max_qual.qual = MMR_SGNL_QUAL;
2352 range->max_qual.level = MMR_SIGNAL_LVL;
2353 range->max_qual.noise = MMR_SILENCE_LVL;
2354 range->avg_qual.qual = MMR_SGNL_QUAL; /* Always max */
2355 /* Need to get better values for those two */
2356 range->avg_qual.level = 30;
2357 range->avg_qual.noise = 8;
2359 range->num_bitrates = 1;
2360 range->bitrate[0] = 2000000; /* 2 Mb/s */
2362 /* Event capability (kernel + driver) */
2363 range->event_capa[0] = (IW_EVENT_CAPA_MASK(0x8B02) |
2364 IW_EVENT_CAPA_MASK(0x8B04) |
2365 IW_EVENT_CAPA_MASK(0x8B06));
2366 range->event_capa[1] = IW_EVENT_CAPA_K_1;
2368 /* Disable interrupts and save flags. */
2369 spin_lock_irqsave(&lp->spinlock, flags);
2371 /* Attempt to recognise 2.00 cards (2.4 GHz frequency selectable). */
2372 if (!(mmc_in(base, mmroff(0, mmr_fee_status)) &
2373 (MMR_FEE_STATUS_DWLD | MMR_FEE_STATUS_BUSY))) {
2374 range->num_channels = 10;
2375 range->num_frequency = wv_frequency_list(base, range->freq,
2376 IW_MAX_FREQUENCIES);
2377 } else
2378 range->num_channels = range->num_frequency = 0;
2380 /* Encryption supported ? */
2381 if (mmc_encr(base)) {
2382 range->encoding_size[0] = 8; /* DES = 64 bits key */
2383 range->num_encoding_sizes = 1;
2384 range->max_encoding_tokens = 1; /* Only one key possible */
2385 } else {
2386 range->num_encoding_sizes = 0;
2387 range->max_encoding_tokens = 0;
2390 /* Enable interrupts and restore flags. */
2391 spin_unlock_irqrestore(&lp->spinlock, flags);
2393 return ret;
2396 /*------------------------------------------------------------------*/
2398 * Wireless Private Handler : set quality threshold
2400 static int wavelan_set_qthr(struct net_device *dev,
2401 struct iw_request_info *info,
2402 union iwreq_data *wrqu,
2403 char *extra)
2405 unsigned int base = dev->base_addr;
2406 net_local *lp = netdev_priv(dev);
2407 psa_t psa;
2408 unsigned long flags;
2410 /* Disable interrupts and save flags. */
2411 spin_lock_irqsave(&lp->spinlock, flags);
2413 psa.psa_quality_thr = *(extra) & 0x0F;
2414 psa_write(dev,
2415 (char *) &psa.psa_quality_thr - (char *) &psa,
2416 (unsigned char *) &psa.psa_quality_thr, 1);
2417 /* update the Wavelan checksum */
2418 update_psa_checksum(dev);
2419 mmc_out(base, mmwoff(0, mmw_quality_thr),
2420 psa.psa_quality_thr);
2422 /* Enable interrupts and restore flags. */
2423 spin_unlock_irqrestore(&lp->spinlock, flags);
2425 return 0;
2428 /*------------------------------------------------------------------*/
2430 * Wireless Private Handler : get quality threshold
2432 static int wavelan_get_qthr(struct net_device *dev,
2433 struct iw_request_info *info,
2434 union iwreq_data *wrqu,
2435 char *extra)
2437 net_local *lp = netdev_priv(dev);
2438 psa_t psa;
2439 unsigned long flags;
2441 /* Disable interrupts and save flags. */
2442 spin_lock_irqsave(&lp->spinlock, flags);
2444 psa_read(dev,
2445 (char *) &psa.psa_quality_thr - (char *) &psa,
2446 (unsigned char *) &psa.psa_quality_thr, 1);
2447 *(extra) = psa.psa_quality_thr & 0x0F;
2449 /* Enable interrupts and restore flags. */
2450 spin_unlock_irqrestore(&lp->spinlock, flags);
2452 return 0;
2455 #ifdef WAVELAN_ROAMING
2456 /*------------------------------------------------------------------*/
2458 * Wireless Private Handler : set roaming
2460 static int wavelan_set_roam(struct net_device *dev,
2461 struct iw_request_info *info,
2462 union iwreq_data *wrqu,
2463 char *extra)
2465 net_local *lp = netdev_priv(dev);
2466 unsigned long flags;
2468 /* Disable interrupts and save flags. */
2469 spin_lock_irqsave(&lp->spinlock, flags);
2471 /* Note : should check if user == root */
2472 if(do_roaming && (*extra)==0)
2473 wv_roam_cleanup(dev);
2474 else if(do_roaming==0 && (*extra)!=0)
2475 wv_roam_init(dev);
2477 do_roaming = (*extra);
2479 /* Enable interrupts and restore flags. */
2480 spin_unlock_irqrestore(&lp->spinlock, flags);
2482 return 0;
2485 /*------------------------------------------------------------------*/
2487 * Wireless Private Handler : get quality threshold
2489 static int wavelan_get_roam(struct net_device *dev,
2490 struct iw_request_info *info,
2491 union iwreq_data *wrqu,
2492 char *extra)
2494 *(extra) = do_roaming;
2496 return 0;
2498 #endif /* WAVELAN_ROAMING */
2500 #ifdef HISTOGRAM
2501 /*------------------------------------------------------------------*/
2503 * Wireless Private Handler : set histogram
2505 static int wavelan_set_histo(struct net_device *dev,
2506 struct iw_request_info *info,
2507 union iwreq_data *wrqu,
2508 char *extra)
2510 net_local *lp = netdev_priv(dev);
2512 /* Check the number of intervals. */
2513 if (wrqu->data.length > 16) {
2514 return(-E2BIG);
2517 /* Disable histo while we copy the addresses.
2518 * As we don't disable interrupts, we need to do this */
2519 lp->his_number = 0;
2521 /* Are there ranges to copy? */
2522 if (wrqu->data.length > 0) {
2523 /* Copy interval ranges to the driver */
2524 memcpy(lp->his_range, extra, wrqu->data.length);
2527 int i;
2528 printk(KERN_DEBUG "Histo :");
2529 for(i = 0; i < wrqu->data.length; i++)
2530 printk(" %d", lp->his_range[i]);
2531 printk("\n");
2534 /* Reset result structure. */
2535 memset(lp->his_sum, 0x00, sizeof(long) * 16);
2538 /* Now we can set the number of ranges */
2539 lp->his_number = wrqu->data.length;
2541 return(0);
2544 /*------------------------------------------------------------------*/
2546 * Wireless Private Handler : get histogram
2548 static int wavelan_get_histo(struct net_device *dev,
2549 struct iw_request_info *info,
2550 union iwreq_data *wrqu,
2551 char *extra)
2553 net_local *lp = netdev_priv(dev);
2555 /* Set the number of intervals. */
2556 wrqu->data.length = lp->his_number;
2558 /* Give back the distribution statistics */
2559 if(lp->his_number > 0)
2560 memcpy(extra, lp->his_sum, sizeof(long) * lp->his_number);
2562 return(0);
2564 #endif /* HISTOGRAM */
2566 /*------------------------------------------------------------------*/
2568 * Structures to export the Wireless Handlers
2571 static const struct iw_priv_args wavelan_private_args[] = {
2572 /*{ cmd, set_args, get_args, name } */
2573 { SIOCSIPQTHR, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, 0, "setqualthr" },
2574 { SIOCGIPQTHR, 0, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, "getqualthr" },
2575 { SIOCSIPROAM, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, 0, "setroam" },
2576 { SIOCGIPROAM, 0, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, "getroam" },
2577 { SIOCSIPHISTO, IW_PRIV_TYPE_BYTE | 16, 0, "sethisto" },
2578 { SIOCGIPHISTO, 0, IW_PRIV_TYPE_INT | 16, "gethisto" },
2581 static const iw_handler wavelan_handler[] =
2583 NULL, /* SIOCSIWNAME */
2584 wavelan_get_name, /* SIOCGIWNAME */
2585 wavelan_set_nwid, /* SIOCSIWNWID */
2586 wavelan_get_nwid, /* SIOCGIWNWID */
2587 wavelan_set_freq, /* SIOCSIWFREQ */
2588 wavelan_get_freq, /* SIOCGIWFREQ */
2589 #ifdef WAVELAN_ROAMING
2590 wavelan_set_mode, /* SIOCSIWMODE */
2591 wavelan_get_mode, /* SIOCGIWMODE */
2592 #else /* WAVELAN_ROAMING */
2593 NULL, /* SIOCSIWMODE */
2594 NULL, /* SIOCGIWMODE */
2595 #endif /* WAVELAN_ROAMING */
2596 wavelan_set_sens, /* SIOCSIWSENS */
2597 wavelan_get_sens, /* SIOCGIWSENS */
2598 NULL, /* SIOCSIWRANGE */
2599 wavelan_get_range, /* SIOCGIWRANGE */
2600 NULL, /* SIOCSIWPRIV */
2601 NULL, /* SIOCGIWPRIV */
2602 NULL, /* SIOCSIWSTATS */
2603 NULL, /* SIOCGIWSTATS */
2604 iw_handler_set_spy, /* SIOCSIWSPY */
2605 iw_handler_get_spy, /* SIOCGIWSPY */
2606 iw_handler_set_thrspy, /* SIOCSIWTHRSPY */
2607 iw_handler_get_thrspy, /* SIOCGIWTHRSPY */
2608 #ifdef WAVELAN_ROAMING_EXT
2609 wavelan_set_wap, /* SIOCSIWAP */
2610 wavelan_get_wap, /* SIOCGIWAP */
2611 NULL, /* -- hole -- */
2612 NULL, /* SIOCGIWAPLIST */
2613 NULL, /* -- hole -- */
2614 NULL, /* -- hole -- */
2615 wavelan_set_essid, /* SIOCSIWESSID */
2616 wavelan_get_essid, /* SIOCGIWESSID */
2617 #else /* WAVELAN_ROAMING_EXT */
2618 NULL, /* SIOCSIWAP */
2619 NULL, /* SIOCGIWAP */
2620 NULL, /* -- hole -- */
2621 NULL, /* SIOCGIWAPLIST */
2622 NULL, /* -- hole -- */
2623 NULL, /* -- hole -- */
2624 NULL, /* SIOCSIWESSID */
2625 NULL, /* SIOCGIWESSID */
2626 #endif /* WAVELAN_ROAMING_EXT */
2627 NULL, /* SIOCSIWNICKN */
2628 NULL, /* SIOCGIWNICKN */
2629 NULL, /* -- hole -- */
2630 NULL, /* -- hole -- */
2631 NULL, /* SIOCSIWRATE */
2632 NULL, /* SIOCGIWRATE */
2633 NULL, /* SIOCSIWRTS */
2634 NULL, /* SIOCGIWRTS */
2635 NULL, /* SIOCSIWFRAG */
2636 NULL, /* SIOCGIWFRAG */
2637 NULL, /* SIOCSIWTXPOW */
2638 NULL, /* SIOCGIWTXPOW */
2639 NULL, /* SIOCSIWRETRY */
2640 NULL, /* SIOCGIWRETRY */
2641 wavelan_set_encode, /* SIOCSIWENCODE */
2642 wavelan_get_encode, /* SIOCGIWENCODE */
2645 static const iw_handler wavelan_private_handler[] =
2647 wavelan_set_qthr, /* SIOCIWFIRSTPRIV */
2648 wavelan_get_qthr, /* SIOCIWFIRSTPRIV + 1 */
2649 #ifdef WAVELAN_ROAMING
2650 wavelan_set_roam, /* SIOCIWFIRSTPRIV + 2 */
2651 wavelan_get_roam, /* SIOCIWFIRSTPRIV + 3 */
2652 #else /* WAVELAN_ROAMING */
2653 NULL, /* SIOCIWFIRSTPRIV + 2 */
2654 NULL, /* SIOCIWFIRSTPRIV + 3 */
2655 #endif /* WAVELAN_ROAMING */
2656 #ifdef HISTOGRAM
2657 wavelan_set_histo, /* SIOCIWFIRSTPRIV + 4 */
2658 wavelan_get_histo, /* SIOCIWFIRSTPRIV + 5 */
2659 #endif /* HISTOGRAM */
2662 static const struct iw_handler_def wavelan_handler_def =
2664 .num_standard = ARRAY_SIZE(wavelan_handler),
2665 .num_private = ARRAY_SIZE(wavelan_private_handler),
2666 .num_private_args = ARRAY_SIZE(wavelan_private_args),
2667 .standard = wavelan_handler,
2668 .private = wavelan_private_handler,
2669 .private_args = wavelan_private_args,
2670 .get_wireless_stats = wavelan_get_wireless_stats,
2673 /*------------------------------------------------------------------*/
2675 * Get wireless statistics
2676 * Called by /proc/net/wireless...
2678 static iw_stats *
2679 wavelan_get_wireless_stats(struct net_device * dev)
2681 unsigned int base = dev->base_addr;
2682 net_local * lp = netdev_priv(dev);
2683 mmr_t m;
2684 iw_stats * wstats;
2685 unsigned long flags;
2687 #ifdef DEBUG_IOCTL_TRACE
2688 printk(KERN_DEBUG "%s: ->wavelan_get_wireless_stats()\n", dev->name);
2689 #endif
2691 /* Disable interrupts & save flags */
2692 spin_lock_irqsave(&lp->spinlock, flags);
2694 wstats = &lp->wstats;
2696 /* Get data from the mmc */
2697 mmc_out(base, mmwoff(0, mmw_freeze), 1);
2699 mmc_read(base, mmroff(0, mmr_dce_status), &m.mmr_dce_status, 1);
2700 mmc_read(base, mmroff(0, mmr_wrong_nwid_l), &m.mmr_wrong_nwid_l, 2);
2701 mmc_read(base, mmroff(0, mmr_thr_pre_set), &m.mmr_thr_pre_set, 4);
2703 mmc_out(base, mmwoff(0, mmw_freeze), 0);
2705 /* Copy data to wireless stuff */
2706 wstats->status = m.mmr_dce_status & MMR_DCE_STATUS;
2707 wstats->qual.qual = m.mmr_sgnl_qual & MMR_SGNL_QUAL;
2708 wstats->qual.level = m.mmr_signal_lvl & MMR_SIGNAL_LVL;
2709 wstats->qual.noise = m.mmr_silence_lvl & MMR_SILENCE_LVL;
2710 wstats->qual.updated = (((m.mmr_signal_lvl & MMR_SIGNAL_LVL_VALID) >> 7) |
2711 ((m.mmr_signal_lvl & MMR_SIGNAL_LVL_VALID) >> 6) |
2712 ((m.mmr_silence_lvl & MMR_SILENCE_LVL_VALID) >> 5));
2713 wstats->discard.nwid += (m.mmr_wrong_nwid_h << 8) | m.mmr_wrong_nwid_l;
2714 wstats->discard.code = 0L;
2715 wstats->discard.misc = 0L;
2717 /* ReEnable interrupts & restore flags */
2718 spin_unlock_irqrestore(&lp->spinlock, flags);
2720 #ifdef DEBUG_IOCTL_TRACE
2721 printk(KERN_DEBUG "%s: <-wavelan_get_wireless_stats()\n", dev->name);
2722 #endif
2723 return &lp->wstats;
2726 /************************* PACKET RECEPTION *************************/
2728 * This part deal with receiving the packets.
2729 * The interrupt handler get an interrupt when a packet has been
2730 * successfully received and called this part...
2733 /*------------------------------------------------------------------*/
2735 * Calculate the starting address of the frame pointed to by the receive
2736 * frame pointer and verify that the frame seem correct
2737 * (called by wv_packet_rcv())
2739 static int
2740 wv_start_of_frame(struct net_device * dev,
2741 int rfp, /* end of frame */
2742 int wrap) /* start of buffer */
2744 unsigned int base = dev->base_addr;
2745 int rp;
2746 int len;
2748 rp = (rfp - 5 + RX_SIZE) % RX_SIZE;
2749 outb(rp & 0xff, PIORL(base));
2750 outb(((rp >> 8) & PIORH_MASK), PIORH(base));
2751 len = inb(PIOP(base));
2752 len |= inb(PIOP(base)) << 8;
2754 /* Sanity checks on size */
2755 /* Frame too big */
2756 if(len > MAXDATAZ + 100)
2758 #ifdef DEBUG_RX_ERROR
2759 printk(KERN_INFO "%s: wv_start_of_frame: Received frame too large, rfp %d len 0x%x\n",
2760 dev->name, rfp, len);
2761 #endif
2762 return(-1);
2765 /* Frame too short */
2766 if(len < 7)
2768 #ifdef DEBUG_RX_ERROR
2769 printk(KERN_INFO "%s: wv_start_of_frame: Received null frame, rfp %d len 0x%x\n",
2770 dev->name, rfp, len);
2771 #endif
2772 return(-1);
2775 /* Wrap around buffer */
2776 if(len > ((wrap - (rfp - len) + RX_SIZE) % RX_SIZE)) /* magic formula ! */
2778 #ifdef DEBUG_RX_ERROR
2779 printk(KERN_INFO "%s: wv_start_of_frame: wrap around buffer, wrap %d rfp %d len 0x%x\n",
2780 dev->name, wrap, rfp, len);
2781 #endif
2782 return(-1);
2785 return((rp - len + RX_SIZE) % RX_SIZE);
2786 } /* wv_start_of_frame */
2788 /*------------------------------------------------------------------*/
2790 * This routine does the actual copy of data (including the ethernet
2791 * header structure) from the WaveLAN card to an sk_buff chain that
2792 * will be passed up to the network interface layer. NOTE: We
2793 * currently don't handle trailer protocols (neither does the rest of
2794 * the network interface), so if that is needed, it will (at least in
2795 * part) be added here. The contents of the receive ring buffer are
2796 * copied to a message chain that is then passed to the kernel.
2798 * Note: if any errors occur, the packet is "dropped on the floor"
2799 * (called by wv_packet_rcv())
2801 static void
2802 wv_packet_read(struct net_device * dev,
2803 int fd_p,
2804 int sksize)
2806 net_local * lp = netdev_priv(dev);
2807 struct sk_buff * skb;
2809 #ifdef DEBUG_RX_TRACE
2810 printk(KERN_DEBUG "%s: ->wv_packet_read(0x%X, %d)\n",
2811 dev->name, fd_p, sksize);
2812 #endif
2814 /* Allocate some buffer for the new packet */
2815 if((skb = dev_alloc_skb(sksize+2)) == (struct sk_buff *) NULL)
2817 #ifdef DEBUG_RX_ERROR
2818 printk(KERN_INFO "%s: wv_packet_read(): could not alloc_skb(%d, GFP_ATOMIC)\n",
2819 dev->name, sksize);
2820 #endif
2821 lp->stats.rx_dropped++;
2823 * Not only do we want to return here, but we also need to drop the
2824 * packet on the floor to clear the interrupt.
2826 return;
2829 skb_reserve(skb, 2);
2830 fd_p = read_ringbuf(dev, fd_p, (char *) skb_put(skb, sksize), sksize);
2831 skb->protocol = eth_type_trans(skb, dev);
2833 #ifdef DEBUG_RX_INFO
2834 wv_packet_info(skb_mac_header(skb), sksize, dev->name, "wv_packet_read");
2835 #endif /* DEBUG_RX_INFO */
2837 /* Statistics gathering & stuff associated.
2838 * It seem a bit messy with all the define, but it's really simple... */
2840 #ifdef IW_WIRELESS_SPY
2841 (lp->spy_data.spy_number > 0) ||
2842 #endif /* IW_WIRELESS_SPY */
2843 #ifdef HISTOGRAM
2844 (lp->his_number > 0) ||
2845 #endif /* HISTOGRAM */
2846 #ifdef WAVELAN_ROAMING
2847 (do_roaming) ||
2848 #endif /* WAVELAN_ROAMING */
2851 u_char stats[3]; /* Signal level, Noise level, Signal quality */
2853 /* read signal level, silence level and signal quality bytes */
2854 fd_p = read_ringbuf(dev, (fd_p + 4) % RX_SIZE + RX_BASE,
2855 stats, 3);
2856 #ifdef DEBUG_RX_INFO
2857 printk(KERN_DEBUG "%s: wv_packet_read(): Signal level %d/63, Silence level %d/63, signal quality %d/16\n",
2858 dev->name, stats[0] & 0x3F, stats[1] & 0x3F, stats[2] & 0x0F);
2859 #endif
2861 #ifdef WAVELAN_ROAMING
2862 if(do_roaming)
2863 if(WAVELAN_BEACON(skb->data))
2864 wl_roam_gather(dev, skb->data, stats);
2865 #endif /* WAVELAN_ROAMING */
2867 #ifdef WIRELESS_SPY
2868 wl_spy_gather(dev, skb_mac_header(skb) + WAVELAN_ADDR_SIZE, stats);
2869 #endif /* WIRELESS_SPY */
2870 #ifdef HISTOGRAM
2871 wl_his_gather(dev, stats);
2872 #endif /* HISTOGRAM */
2876 * Hand the packet to the Network Module
2878 netif_rx(skb);
2880 /* Keep stats up to date */
2881 lp->stats.rx_packets++;
2882 lp->stats.rx_bytes += sksize;
2884 #ifdef DEBUG_RX_TRACE
2885 printk(KERN_DEBUG "%s: <-wv_packet_read()\n", dev->name);
2886 #endif
2887 return;
2890 /*------------------------------------------------------------------*/
2892 * This routine is called by the interrupt handler to initiate a
2893 * packet transfer from the card to the network interface layer above
2894 * this driver. This routine checks if a buffer has been successfully
2895 * received by the WaveLAN card. If so, the routine wv_packet_read is
2896 * called to do the actual transfer of the card's data including the
2897 * ethernet header into a packet consisting of an sk_buff chain.
2898 * (called by wavelan_interrupt())
2899 * Note : the spinlock is already grabbed for us and irq are disabled.
2901 static void
2902 wv_packet_rcv(struct net_device * dev)
2904 unsigned int base = dev->base_addr;
2905 net_local * lp = netdev_priv(dev);
2906 int newrfp;
2907 int rp;
2908 int len;
2909 int f_start;
2910 int status;
2911 int i593_rfp;
2912 int stat_ptr;
2913 u_char c[4];
2915 #ifdef DEBUG_RX_TRACE
2916 printk(KERN_DEBUG "%s: ->wv_packet_rcv()\n", dev->name);
2917 #endif
2919 /* Get the new receive frame pointer from the i82593 chip */
2920 outb(CR0_STATUS_2 | OP0_NOP, LCCR(base));
2921 i593_rfp = inb(LCSR(base));
2922 i593_rfp |= inb(LCSR(base)) << 8;
2923 i593_rfp %= RX_SIZE;
2925 /* Get the new receive frame pointer from the WaveLAN card.
2926 * It is 3 bytes more than the increment of the i82593 receive
2927 * frame pointer, for each packet. This is because it includes the
2928 * 3 roaming bytes added by the mmc.
2930 newrfp = inb(RPLL(base));
2931 newrfp |= inb(RPLH(base)) << 8;
2932 newrfp %= RX_SIZE;
2934 #ifdef DEBUG_RX_INFO
2935 printk(KERN_DEBUG "%s: wv_packet_rcv(): i593_rfp %d stop %d newrfp %d lp->rfp %d\n",
2936 dev->name, i593_rfp, lp->stop, newrfp, lp->rfp);
2937 #endif
2939 #ifdef DEBUG_RX_ERROR
2940 /* If no new frame pointer... */
2941 if(lp->overrunning || newrfp == lp->rfp)
2942 printk(KERN_INFO "%s: wv_packet_rcv(): no new frame: i593_rfp %d stop %d newrfp %d lp->rfp %d\n",
2943 dev->name, i593_rfp, lp->stop, newrfp, lp->rfp);
2944 #endif
2946 /* Read all frames (packets) received */
2947 while(newrfp != lp->rfp)
2949 /* A frame is composed of the packet, followed by a status word,
2950 * the length of the frame (word) and the mmc info (SNR & qual).
2951 * It's because the length is at the end that we can only scan
2952 * frames backward. */
2954 /* Find the first frame by skipping backwards over the frames */
2955 rp = newrfp; /* End of last frame */
2956 while(((f_start = wv_start_of_frame(dev, rp, newrfp)) != lp->rfp) &&
2957 (f_start != -1))
2958 rp = f_start;
2960 /* If we had a problem */
2961 if(f_start == -1)
2963 #ifdef DEBUG_RX_ERROR
2964 printk(KERN_INFO "wavelan_cs: cannot find start of frame ");
2965 printk(" i593_rfp %d stop %d newrfp %d lp->rfp %d\n",
2966 i593_rfp, lp->stop, newrfp, lp->rfp);
2967 #endif
2968 lp->rfp = rp; /* Get to the last usable frame */
2969 continue;
2972 /* f_start point to the beggining of the first frame received
2973 * and rp to the beggining of the next one */
2975 /* Read status & length of the frame */
2976 stat_ptr = (rp - 7 + RX_SIZE) % RX_SIZE;
2977 stat_ptr = read_ringbuf(dev, stat_ptr, c, 4);
2978 status = c[0] | (c[1] << 8);
2979 len = c[2] | (c[3] << 8);
2981 /* Check status */
2982 if((status & RX_RCV_OK) != RX_RCV_OK)
2984 lp->stats.rx_errors++;
2985 if(status & RX_NO_SFD)
2986 lp->stats.rx_frame_errors++;
2987 if(status & RX_CRC_ERR)
2988 lp->stats.rx_crc_errors++;
2989 if(status & RX_OVRRUN)
2990 lp->stats.rx_over_errors++;
2992 #ifdef DEBUG_RX_FAIL
2993 printk(KERN_DEBUG "%s: wv_packet_rcv(): packet not received ok, status = 0x%x\n",
2994 dev->name, status);
2995 #endif
2997 else
2998 /* Read the packet and transmit to Linux */
2999 wv_packet_read(dev, f_start, len - 2);
3001 /* One frame has been processed, skip it */
3002 lp->rfp = rp;
3006 * Update the frame stop register, but set it to less than
3007 * the full 8K to allow space for 3 bytes of signal strength
3008 * per packet.
3010 lp->stop = (i593_rfp + RX_SIZE - ((RX_SIZE / 64) * 3)) % RX_SIZE;
3011 outb(OP0_SWIT_TO_PORT_1 | CR0_CHNL, LCCR(base));
3012 outb(CR1_STOP_REG_UPDATE | (lp->stop >> RX_SIZE_SHIFT), LCCR(base));
3013 outb(OP1_SWIT_TO_PORT_0, LCCR(base));
3015 #ifdef DEBUG_RX_TRACE
3016 printk(KERN_DEBUG "%s: <-wv_packet_rcv()\n", dev->name);
3017 #endif
3020 /*********************** PACKET TRANSMISSION ***********************/
3022 * This part deal with sending packet through the wavelan
3023 * We copy the packet to the send buffer and then issue the send
3024 * command to the i82593. The result of this operation will be
3025 * checked in wavelan_interrupt()
3028 /*------------------------------------------------------------------*/
3030 * This routine fills in the appropriate registers and memory
3031 * locations on the WaveLAN card and starts the card off on
3032 * the transmit.
3033 * (called in wavelan_packet_xmit())
3035 static void
3036 wv_packet_write(struct net_device * dev,
3037 void * buf,
3038 short length)
3040 net_local * lp = netdev_priv(dev);
3041 unsigned int base = dev->base_addr;
3042 unsigned long flags;
3043 int clen = length;
3044 register u_short xmtdata_base = TX_BASE;
3046 #ifdef DEBUG_TX_TRACE
3047 printk(KERN_DEBUG "%s: ->wv_packet_write(%d)\n", dev->name, length);
3048 #endif
3050 spin_lock_irqsave(&lp->spinlock, flags);
3052 /* Write the length of data buffer followed by the buffer */
3053 outb(xmtdata_base & 0xff, PIORL(base));
3054 outb(((xmtdata_base >> 8) & PIORH_MASK) | PIORH_SEL_TX, PIORH(base));
3055 outb(clen & 0xff, PIOP(base)); /* lsb */
3056 outb(clen >> 8, PIOP(base)); /* msb */
3058 /* Send the data */
3059 outsb(PIOP(base), buf, clen);
3061 /* Indicate end of transmit chain */
3062 outb(OP0_NOP, PIOP(base));
3063 /* josullvn@cs.cmu.edu: need to send a second NOP for alignment... */
3064 outb(OP0_NOP, PIOP(base));
3066 /* Reset the transmit DMA pointer */
3067 hacr_write_slow(base, HACR_PWR_STAT | HACR_TX_DMA_RESET);
3068 hacr_write(base, HACR_DEFAULT);
3069 /* Send the transmit command */
3070 wv_82593_cmd(dev, "wv_packet_write(): transmit",
3071 OP0_TRANSMIT, SR0_NO_RESULT);
3073 /* Make sure the watchdog will keep quiet for a while */
3074 dev->trans_start = jiffies;
3076 /* Keep stats up to date */
3077 lp->stats.tx_bytes += length;
3079 spin_unlock_irqrestore(&lp->spinlock, flags);
3081 #ifdef DEBUG_TX_INFO
3082 wv_packet_info((u_char *) buf, length, dev->name, "wv_packet_write");
3083 #endif /* DEBUG_TX_INFO */
3085 #ifdef DEBUG_TX_TRACE
3086 printk(KERN_DEBUG "%s: <-wv_packet_write()\n", dev->name);
3087 #endif
3090 /*------------------------------------------------------------------*/
3092 * This routine is called when we want to send a packet (NET3 callback)
3093 * In this routine, we check if the harware is ready to accept
3094 * the packet. We also prevent reentrance. Then, we call the function
3095 * to send the packet...
3097 static int
3098 wavelan_packet_xmit(struct sk_buff * skb,
3099 struct net_device * dev)
3101 net_local * lp = netdev_priv(dev);
3102 unsigned long flags;
3104 #ifdef DEBUG_TX_TRACE
3105 printk(KERN_DEBUG "%s: ->wavelan_packet_xmit(0x%X)\n", dev->name,
3106 (unsigned) skb);
3107 #endif
3110 * Block a timer-based transmit from overlapping a previous transmit.
3111 * In other words, prevent reentering this routine.
3113 netif_stop_queue(dev);
3115 /* If somebody has asked to reconfigure the controller,
3116 * we can do it now */
3117 if(lp->reconfig_82593)
3119 spin_lock_irqsave(&lp->spinlock, flags); /* Disable interrupts */
3120 wv_82593_config(dev);
3121 spin_unlock_irqrestore(&lp->spinlock, flags); /* Re-enable interrupts */
3122 /* Note : the configure procedure was totally synchronous,
3123 * so the Tx buffer is now free */
3126 #ifdef DEBUG_TX_ERROR
3127 if (skb->next)
3128 printk(KERN_INFO "skb has next\n");
3129 #endif
3131 /* Check if we need some padding */
3132 /* Note : on wireless the propagation time is in the order of 1us,
3133 * and we don't have the Ethernet specific requirement of beeing
3134 * able to detect collisions, therefore in theory we don't really
3135 * need to pad. Jean II */
3136 if (skb_padto(skb, ETH_ZLEN))
3137 return 0;
3139 wv_packet_write(dev, skb->data, skb->len);
3141 dev_kfree_skb(skb);
3143 #ifdef DEBUG_TX_TRACE
3144 printk(KERN_DEBUG "%s: <-wavelan_packet_xmit()\n", dev->name);
3145 #endif
3146 return(0);
3149 /********************** HARDWARE CONFIGURATION **********************/
3151 * This part do the real job of starting and configuring the hardware.
3154 /*------------------------------------------------------------------*/
3156 * Routine to initialize the Modem Management Controller.
3157 * (called by wv_hw_config())
3159 static int
3160 wv_mmc_init(struct net_device * dev)
3162 unsigned int base = dev->base_addr;
3163 psa_t psa;
3164 mmw_t m;
3165 int configured;
3166 int i; /* Loop counter */
3168 #ifdef DEBUG_CONFIG_TRACE
3169 printk(KERN_DEBUG "%s: ->wv_mmc_init()\n", dev->name);
3170 #endif
3172 /* Read the parameter storage area */
3173 psa_read(dev, 0, (unsigned char *) &psa, sizeof(psa));
3176 * Check the first three octets of the MAC addr for the manufacturer's code.
3177 * Note: If you get the error message below, you've got a
3178 * non-NCR/AT&T/Lucent PCMCIA cards, see wavelan_cs.h for detail on
3179 * how to configure your card...
3181 for (i = 0; i < ARRAY_SIZE(MAC_ADDRESSES); i++)
3182 if ((psa.psa_univ_mac_addr[0] == MAC_ADDRESSES[i][0]) &&
3183 (psa.psa_univ_mac_addr[1] == MAC_ADDRESSES[i][1]) &&
3184 (psa.psa_univ_mac_addr[2] == MAC_ADDRESSES[i][2]))
3185 break;
3187 /* If we have not found it... */
3188 if (i == ARRAY_SIZE(MAC_ADDRESSES))
3190 #ifdef DEBUG_CONFIG_ERRORS
3191 printk(KERN_WARNING "%s: wv_mmc_init(): Invalid MAC address: %02X:%02X:%02X:...\n",
3192 dev->name, psa.psa_univ_mac_addr[0],
3193 psa.psa_univ_mac_addr[1], psa.psa_univ_mac_addr[2]);
3194 #endif
3195 return FALSE;
3198 /* Get the MAC address */
3199 memcpy(&dev->dev_addr[0], &psa.psa_univ_mac_addr[0], WAVELAN_ADDR_SIZE);
3201 #ifdef USE_PSA_CONFIG
3202 configured = psa.psa_conf_status & 1;
3203 #else
3204 configured = 0;
3205 #endif
3207 /* Is the PSA is not configured */
3208 if(!configured)
3210 /* User will be able to configure NWID after (with iwconfig) */
3211 psa.psa_nwid[0] = 0;
3212 psa.psa_nwid[1] = 0;
3214 /* As NWID is not set : no NWID checking */
3215 psa.psa_nwid_select = 0;
3217 /* Disable encryption */
3218 psa.psa_encryption_select = 0;
3220 /* Set to standard values
3221 * 0x04 for AT,
3222 * 0x01 for MCA,
3223 * 0x04 for PCMCIA and 2.00 card (AT&T 407-024689/E document)
3225 if (psa.psa_comp_number & 1)
3226 psa.psa_thr_pre_set = 0x01;
3227 else
3228 psa.psa_thr_pre_set = 0x04;
3229 psa.psa_quality_thr = 0x03;
3231 /* It is configured */
3232 psa.psa_conf_status |= 1;
3234 #ifdef USE_PSA_CONFIG
3235 /* Write the psa */
3236 psa_write(dev, (char *)psa.psa_nwid - (char *)&psa,
3237 (unsigned char *)psa.psa_nwid, 4);
3238 psa_write(dev, (char *)&psa.psa_thr_pre_set - (char *)&psa,
3239 (unsigned char *)&psa.psa_thr_pre_set, 1);
3240 psa_write(dev, (char *)&psa.psa_quality_thr - (char *)&psa,
3241 (unsigned char *)&psa.psa_quality_thr, 1);
3242 psa_write(dev, (char *)&psa.psa_conf_status - (char *)&psa,
3243 (unsigned char *)&psa.psa_conf_status, 1);
3244 /* update the Wavelan checksum */
3245 update_psa_checksum(dev);
3246 #endif /* USE_PSA_CONFIG */
3249 /* Zero the mmc structure */
3250 memset(&m, 0x00, sizeof(m));
3252 /* Copy PSA info to the mmc */
3253 m.mmw_netw_id_l = psa.psa_nwid[1];
3254 m.mmw_netw_id_h = psa.psa_nwid[0];
3256 if(psa.psa_nwid_select & 1)
3257 m.mmw_loopt_sel = 0x00;
3258 else
3259 m.mmw_loopt_sel = MMW_LOOPT_SEL_DIS_NWID;
3261 memcpy(&m.mmw_encr_key, &psa.psa_encryption_key,
3262 sizeof(m.mmw_encr_key));
3264 if(psa.psa_encryption_select)
3265 m.mmw_encr_enable = MMW_ENCR_ENABLE_EN | MMW_ENCR_ENABLE_MODE;
3266 else
3267 m.mmw_encr_enable = 0;
3269 m.mmw_thr_pre_set = psa.psa_thr_pre_set & 0x3F;
3270 m.mmw_quality_thr = psa.psa_quality_thr & 0x0F;
3273 * Set default modem control parameters.
3274 * See NCR document 407-0024326 Rev. A.
3276 m.mmw_jabber_enable = 0x01;
3277 m.mmw_anten_sel = MMW_ANTEN_SEL_ALG_EN;
3278 m.mmw_ifs = 0x20;
3279 m.mmw_mod_delay = 0x04;
3280 m.mmw_jam_time = 0x38;
3282 m.mmw_des_io_invert = 0;
3283 m.mmw_freeze = 0;
3284 m.mmw_decay_prm = 0;
3285 m.mmw_decay_updat_prm = 0;
3287 /* Write all info to mmc */
3288 mmc_write(base, 0, (u_char *)&m, sizeof(m));
3290 /* The following code start the modem of the 2.00 frequency
3291 * selectable cards at power on. It's not strictly needed for the
3292 * following boots...
3293 * The original patch was by Joe Finney for the PCMCIA driver, but
3294 * I've cleaned it a bit and add documentation.
3295 * Thanks to Loeke Brederveld from Lucent for the info.
3298 /* Attempt to recognise 2.00 cards (2.4 GHz frequency selectable)
3299 * (does it work for everybody ? - especially old cards...) */
3300 /* Note : WFREQSEL verify that it is able to read from EEprom
3301 * a sensible frequency (address 0x00) + that MMR_FEE_STATUS_ID
3302 * is 0xA (Xilinx version) or 0xB (Ariadne version).
3303 * My test is more crude but do work... */
3304 if(!(mmc_in(base, mmroff(0, mmr_fee_status)) &
3305 (MMR_FEE_STATUS_DWLD | MMR_FEE_STATUS_BUSY)))
3307 /* We must download the frequency parameters to the
3308 * synthetisers (from the EEprom - area 1)
3309 * Note : as the EEprom is auto decremented, we set the end
3310 * if the area... */
3311 m.mmw_fee_addr = 0x0F;
3312 m.mmw_fee_ctrl = MMW_FEE_CTRL_READ | MMW_FEE_CTRL_DWLD;
3313 mmc_write(base, (char *)&m.mmw_fee_ctrl - (char *)&m,
3314 (unsigned char *)&m.mmw_fee_ctrl, 2);
3316 /* Wait until the download is finished */
3317 fee_wait(base, 100, 100);
3319 #ifdef DEBUG_CONFIG_INFO
3320 /* The frequency was in the last word downloaded... */
3321 mmc_read(base, (char *)&m.mmw_fee_data_l - (char *)&m,
3322 (unsigned char *)&m.mmw_fee_data_l, 2);
3324 /* Print some info for the user */
3325 printk(KERN_DEBUG "%s: Wavelan 2.00 recognised (frequency select) : Current frequency = %ld\n",
3326 dev->name,
3327 ((m.mmw_fee_data_h << 4) |
3328 (m.mmw_fee_data_l >> 4)) * 5 / 2 + 24000L);
3329 #endif
3331 /* We must now download the power adjust value (gain) to
3332 * the synthetisers (from the EEprom - area 7 - DAC) */
3333 m.mmw_fee_addr = 0x61;
3334 m.mmw_fee_ctrl = MMW_FEE_CTRL_READ | MMW_FEE_CTRL_DWLD;
3335 mmc_write(base, (char *)&m.mmw_fee_ctrl - (char *)&m,
3336 (unsigned char *)&m.mmw_fee_ctrl, 2);
3338 /* Wait until the download is finished */
3339 } /* if 2.00 card */
3341 #ifdef DEBUG_CONFIG_TRACE
3342 printk(KERN_DEBUG "%s: <-wv_mmc_init()\n", dev->name);
3343 #endif
3344 return TRUE;
3347 /*------------------------------------------------------------------*/
3349 * Routine to gracefully turn off reception, and wait for any commands
3350 * to complete.
3351 * (called in wv_ru_start() and wavelan_close() and wavelan_event())
3353 static int
3354 wv_ru_stop(struct net_device * dev)
3356 unsigned int base = dev->base_addr;
3357 net_local * lp = netdev_priv(dev);
3358 unsigned long flags;
3359 int status;
3360 int spin;
3362 #ifdef DEBUG_CONFIG_TRACE
3363 printk(KERN_DEBUG "%s: ->wv_ru_stop()\n", dev->name);
3364 #endif
3366 spin_lock_irqsave(&lp->spinlock, flags);
3368 /* First, send the LAN controller a stop receive command */
3369 wv_82593_cmd(dev, "wv_graceful_shutdown(): stop-rcv",
3370 OP0_STOP_RCV, SR0_NO_RESULT);
3372 /* Then, spin until the receive unit goes idle */
3373 spin = 300;
3376 udelay(10);
3377 outb(OP0_NOP | CR0_STATUS_3, LCCR(base));
3378 status = inb(LCSR(base));
3380 while(((status & SR3_RCV_STATE_MASK) != SR3_RCV_IDLE) && (spin-- > 0));
3382 /* Now, spin until the chip finishes executing its current command */
3385 udelay(10);
3386 outb(OP0_NOP | CR0_STATUS_3, LCCR(base));
3387 status = inb(LCSR(base));
3389 while(((status & SR3_EXEC_STATE_MASK) != SR3_EXEC_IDLE) && (spin-- > 0));
3391 spin_unlock_irqrestore(&lp->spinlock, flags);
3393 /* If there was a problem */
3394 if(spin <= 0)
3396 #ifdef DEBUG_CONFIG_ERRORS
3397 printk(KERN_INFO "%s: wv_ru_stop(): The chip doesn't want to stop...\n",
3398 dev->name);
3399 #endif
3400 return FALSE;
3403 #ifdef DEBUG_CONFIG_TRACE
3404 printk(KERN_DEBUG "%s: <-wv_ru_stop()\n", dev->name);
3405 #endif
3406 return TRUE;
3407 } /* wv_ru_stop */
3409 /*------------------------------------------------------------------*/
3411 * This routine starts the receive unit running. First, it checks if
3412 * the card is actually ready. Then the card is instructed to receive
3413 * packets again.
3414 * (called in wv_hw_reset() & wavelan_open())
3416 static int
3417 wv_ru_start(struct net_device * dev)
3419 unsigned int base = dev->base_addr;
3420 net_local * lp = netdev_priv(dev);
3421 unsigned long flags;
3423 #ifdef DEBUG_CONFIG_TRACE
3424 printk(KERN_DEBUG "%s: ->wv_ru_start()\n", dev->name);
3425 #endif
3428 * We need to start from a quiescent state. To do so, we could check
3429 * if the card is already running, but instead we just try to shut
3430 * it down. First, we disable reception (in case it was already enabled).
3432 if(!wv_ru_stop(dev))
3433 return FALSE;
3435 spin_lock_irqsave(&lp->spinlock, flags);
3437 /* Now we know that no command is being executed. */
3439 /* Set the receive frame pointer and stop pointer */
3440 lp->rfp = 0;
3441 outb(OP0_SWIT_TO_PORT_1 | CR0_CHNL, LCCR(base));
3443 /* Reset ring management. This sets the receive frame pointer to 1 */
3444 outb(OP1_RESET_RING_MNGMT, LCCR(base));
3446 #if 0
3447 /* XXX the i82593 manual page 6-4 seems to indicate that the stop register
3448 should be set as below */
3449 /* outb(CR1_STOP_REG_UPDATE|((RX_SIZE - 0x40)>> RX_SIZE_SHIFT),LCCR(base));*/
3450 #elif 0
3451 /* but I set it 0 instead */
3452 lp->stop = 0;
3453 #else
3454 /* but I set it to 3 bytes per packet less than 8K */
3455 lp->stop = (0 + RX_SIZE - ((RX_SIZE / 64) * 3)) % RX_SIZE;
3456 #endif
3457 outb(CR1_STOP_REG_UPDATE | (lp->stop >> RX_SIZE_SHIFT), LCCR(base));
3458 outb(OP1_INT_ENABLE, LCCR(base));
3459 outb(OP1_SWIT_TO_PORT_0, LCCR(base));
3461 /* Reset receive DMA pointer */
3462 hacr_write_slow(base, HACR_PWR_STAT | HACR_TX_DMA_RESET);
3463 hacr_write_slow(base, HACR_DEFAULT);
3465 /* Receive DMA on channel 1 */
3466 wv_82593_cmd(dev, "wv_ru_start(): rcv-enable",
3467 CR0_CHNL | OP0_RCV_ENABLE, SR0_NO_RESULT);
3469 #ifdef DEBUG_I82593_SHOW
3471 int status;
3472 int opri;
3473 int spin = 10000;
3475 /* spin until the chip starts receiving */
3478 outb(OP0_NOP | CR0_STATUS_3, LCCR(base));
3479 status = inb(LCSR(base));
3480 if(spin-- <= 0)
3481 break;
3483 while(((status & SR3_RCV_STATE_MASK) != SR3_RCV_ACTIVE) &&
3484 ((status & SR3_RCV_STATE_MASK) != SR3_RCV_READY));
3485 printk(KERN_DEBUG "rcv status is 0x%x [i:%d]\n",
3486 (status & SR3_RCV_STATE_MASK), i);
3488 #endif
3490 spin_unlock_irqrestore(&lp->spinlock, flags);
3492 #ifdef DEBUG_CONFIG_TRACE
3493 printk(KERN_DEBUG "%s: <-wv_ru_start()\n", dev->name);
3494 #endif
3495 return TRUE;
3498 /*------------------------------------------------------------------*/
3500 * This routine does a standard config of the WaveLAN controller (i82593).
3501 * In the ISA driver, this is integrated in wavelan_hardware_reset()
3502 * (called by wv_hw_config(), wv_82593_reconfig() & wavelan_packet_xmit())
3504 static int
3505 wv_82593_config(struct net_device * dev)
3507 unsigned int base = dev->base_addr;
3508 net_local * lp = netdev_priv(dev);
3509 struct i82593_conf_block cfblk;
3510 int ret = TRUE;
3512 #ifdef DEBUG_CONFIG_TRACE
3513 printk(KERN_DEBUG "%s: ->wv_82593_config()\n", dev->name);
3514 #endif
3516 /* Create & fill i82593 config block
3518 * Now conform to Wavelan document WCIN085B
3520 memset(&cfblk, 0x00, sizeof(struct i82593_conf_block));
3521 cfblk.d6mod = FALSE; /* Run in i82593 advanced mode */
3522 cfblk.fifo_limit = 5; /* = 56 B rx and 40 B tx fifo thresholds */
3523 cfblk.forgnesi = FALSE; /* 0=82C501, 1=AMD7992B compatibility */
3524 cfblk.fifo_32 = 1;
3525 cfblk.throttle_enb = FALSE;
3526 cfblk.contin = TRUE; /* enable continuous mode */
3527 cfblk.cntrxint = FALSE; /* enable continuous mode receive interrupts */
3528 cfblk.addr_len = WAVELAN_ADDR_SIZE;
3529 cfblk.acloc = TRUE; /* Disable source addr insertion by i82593 */
3530 cfblk.preamb_len = 0; /* 2 bytes preamble (SFD) */
3531 cfblk.loopback = FALSE;
3532 cfblk.lin_prio = 0; /* conform to 802.3 backoff algorithm */
3533 cfblk.exp_prio = 5; /* conform to 802.3 backoff algorithm */
3534 cfblk.bof_met = 1; /* conform to 802.3 backoff algorithm */
3535 cfblk.ifrm_spc = 0x20 >> 4; /* 32 bit times interframe spacing */
3536 cfblk.slottim_low = 0x20 >> 5; /* 32 bit times slot time */
3537 cfblk.slottim_hi = 0x0;
3538 cfblk.max_retr = 15;
3539 cfblk.prmisc = ((lp->promiscuous) ? TRUE: FALSE); /* Promiscuous mode */
3540 cfblk.bc_dis = FALSE; /* Enable broadcast reception */
3541 cfblk.crs_1 = TRUE; /* Transmit without carrier sense */
3542 cfblk.nocrc_ins = FALSE; /* i82593 generates CRC */
3543 cfblk.crc_1632 = FALSE; /* 32-bit Autodin-II CRC */
3544 cfblk.crs_cdt = FALSE; /* CD not to be interpreted as CS */
3545 cfblk.cs_filter = 0; /* CS is recognized immediately */
3546 cfblk.crs_src = FALSE; /* External carrier sense */
3547 cfblk.cd_filter = 0; /* CD is recognized immediately */
3548 cfblk.min_fr_len = ETH_ZLEN >> 2; /* Minimum frame length 64 bytes */
3549 cfblk.lng_typ = FALSE; /* Length field > 1500 = type field */
3550 cfblk.lng_fld = TRUE; /* Disable 802.3 length field check */
3551 cfblk.rxcrc_xf = TRUE; /* Don't transfer CRC to memory */
3552 cfblk.artx = TRUE; /* Disable automatic retransmission */
3553 cfblk.sarec = TRUE; /* Disable source addr trig of CD */
3554 cfblk.tx_jabber = TRUE; /* Disable jabber jam sequence */
3555 cfblk.hash_1 = FALSE; /* Use bits 0-5 in mc address hash */
3556 cfblk.lbpkpol = TRUE; /* Loopback pin active high */
3557 cfblk.fdx = FALSE; /* Disable full duplex operation */
3558 cfblk.dummy_6 = 0x3f; /* all ones */
3559 cfblk.mult_ia = FALSE; /* No multiple individual addresses */
3560 cfblk.dis_bof = FALSE; /* Disable the backoff algorithm ?! */
3561 cfblk.dummy_1 = TRUE; /* set to 1 */
3562 cfblk.tx_ifs_retrig = 3; /* Hmm... Disabled */
3563 #ifdef MULTICAST_ALL
3564 cfblk.mc_all = (lp->allmulticast ? TRUE: FALSE); /* Allow all multicasts */
3565 #else
3566 cfblk.mc_all = FALSE; /* No multicast all mode */
3567 #endif
3568 cfblk.rcv_mon = 0; /* Monitor mode disabled */
3569 cfblk.frag_acpt = TRUE; /* Do not accept fragments */
3570 cfblk.tstrttrs = FALSE; /* No start transmission threshold */
3571 cfblk.fretx = TRUE; /* FIFO automatic retransmission */
3572 cfblk.syncrqs = FALSE; /* Synchronous DRQ deassertion... */
3573 cfblk.sttlen = TRUE; /* 6 byte status registers */
3574 cfblk.rx_eop = TRUE; /* Signal EOP on packet reception */
3575 cfblk.tx_eop = TRUE; /* Signal EOP on packet transmission */
3576 cfblk.rbuf_size = RX_SIZE>>11; /* Set receive buffer size */
3577 cfblk.rcvstop = TRUE; /* Enable Receive Stop Register */
3579 #ifdef DEBUG_I82593_SHOW
3581 u_char *c = (u_char *) &cfblk;
3582 int i;
3583 printk(KERN_DEBUG "wavelan_cs: config block:");
3584 for(i = 0; i < sizeof(struct i82593_conf_block); i++,c++)
3586 if((i % 16) == 0) printk("\n" KERN_DEBUG);
3587 printk("%02x ", *c);
3589 printk("\n");
3591 #endif
3593 /* Copy the config block to the i82593 */
3594 outb(TX_BASE & 0xff, PIORL(base));
3595 outb(((TX_BASE >> 8) & PIORH_MASK) | PIORH_SEL_TX, PIORH(base));
3596 outb(sizeof(struct i82593_conf_block) & 0xff, PIOP(base)); /* lsb */
3597 outb(sizeof(struct i82593_conf_block) >> 8, PIOP(base)); /* msb */
3598 outsb(PIOP(base), (char *) &cfblk, sizeof(struct i82593_conf_block));
3600 /* reset transmit DMA pointer */
3601 hacr_write_slow(base, HACR_PWR_STAT | HACR_TX_DMA_RESET);
3602 hacr_write(base, HACR_DEFAULT);
3603 if(!wv_82593_cmd(dev, "wv_82593_config(): configure",
3604 OP0_CONFIGURE, SR0_CONFIGURE_DONE))
3605 ret = FALSE;
3607 /* Initialize adapter's ethernet MAC address */
3608 outb(TX_BASE & 0xff, PIORL(base));
3609 outb(((TX_BASE >> 8) & PIORH_MASK) | PIORH_SEL_TX, PIORH(base));
3610 outb(WAVELAN_ADDR_SIZE, PIOP(base)); /* byte count lsb */
3611 outb(0, PIOP(base)); /* byte count msb */
3612 outsb(PIOP(base), &dev->dev_addr[0], WAVELAN_ADDR_SIZE);
3614 /* reset transmit DMA pointer */
3615 hacr_write_slow(base, HACR_PWR_STAT | HACR_TX_DMA_RESET);
3616 hacr_write(base, HACR_DEFAULT);
3617 if(!wv_82593_cmd(dev, "wv_82593_config(): ia-setup",
3618 OP0_IA_SETUP, SR0_IA_SETUP_DONE))
3619 ret = FALSE;
3621 #ifdef WAVELAN_ROAMING
3622 /* If roaming is enabled, join the "Beacon Request" multicast group... */
3623 /* But only if it's not in there already! */
3624 if(do_roaming)
3625 dev_mc_add(dev,WAVELAN_BEACON_ADDRESS, WAVELAN_ADDR_SIZE, 1);
3626 #endif /* WAVELAN_ROAMING */
3628 /* If any multicast address to set */
3629 if(lp->mc_count)
3631 struct dev_mc_list * dmi;
3632 int addrs_len = WAVELAN_ADDR_SIZE * lp->mc_count;
3634 #ifdef DEBUG_CONFIG_INFO
3635 printk(KERN_DEBUG "%s: wv_hw_config(): set %d multicast addresses:\n",
3636 dev->name, lp->mc_count);
3637 for(dmi=dev->mc_list; dmi; dmi=dmi->next)
3638 printk(KERN_DEBUG " %pM\n", dmi->dmi_addr);
3639 #endif
3641 /* Initialize adapter's ethernet multicast addresses */
3642 outb(TX_BASE & 0xff, PIORL(base));
3643 outb(((TX_BASE >> 8) & PIORH_MASK) | PIORH_SEL_TX, PIORH(base));
3644 outb(addrs_len & 0xff, PIOP(base)); /* byte count lsb */
3645 outb((addrs_len >> 8), PIOP(base)); /* byte count msb */
3646 for(dmi=dev->mc_list; dmi; dmi=dmi->next)
3647 outsb(PIOP(base), dmi->dmi_addr, dmi->dmi_addrlen);
3649 /* reset transmit DMA pointer */
3650 hacr_write_slow(base, HACR_PWR_STAT | HACR_TX_DMA_RESET);
3651 hacr_write(base, HACR_DEFAULT);
3652 if(!wv_82593_cmd(dev, "wv_82593_config(): mc-setup",
3653 OP0_MC_SETUP, SR0_MC_SETUP_DONE))
3654 ret = FALSE;
3655 lp->mc_count = dev->mc_count; /* remember to avoid repeated reset */
3658 /* Job done, clear the flag */
3659 lp->reconfig_82593 = FALSE;
3661 #ifdef DEBUG_CONFIG_TRACE
3662 printk(KERN_DEBUG "%s: <-wv_82593_config()\n", dev->name);
3663 #endif
3664 return(ret);
3667 /*------------------------------------------------------------------*/
3669 * Read the Access Configuration Register, perform a software reset,
3670 * and then re-enable the card's software.
3672 * If I understand correctly : reset the pcmcia interface of the
3673 * wavelan.
3674 * (called by wv_config())
3676 static int
3677 wv_pcmcia_reset(struct net_device * dev)
3679 int i;
3680 conf_reg_t reg = { 0, CS_READ, CISREG_COR, 0 };
3681 struct pcmcia_device * link = ((net_local *)netdev_priv(dev))->link;
3683 #ifdef DEBUG_CONFIG_TRACE
3684 printk(KERN_DEBUG "%s: ->wv_pcmcia_reset()\n", dev->name);
3685 #endif
3687 i = pcmcia_access_configuration_register(link, &reg);
3688 if (i != 0)
3690 cs_error(link, AccessConfigurationRegister, i);
3691 return FALSE;
3694 #ifdef DEBUG_CONFIG_INFO
3695 printk(KERN_DEBUG "%s: wavelan_pcmcia_reset(): Config reg is 0x%x\n",
3696 dev->name, (u_int) reg.Value);
3697 #endif
3699 reg.Action = CS_WRITE;
3700 reg.Value = reg.Value | COR_SW_RESET;
3701 i = pcmcia_access_configuration_register(link, &reg);
3702 if (i != 0)
3704 cs_error(link, AccessConfigurationRegister, i);
3705 return FALSE;
3708 reg.Action = CS_WRITE;
3709 reg.Value = COR_LEVEL_IRQ | COR_CONFIG;
3710 i = pcmcia_access_configuration_register(link, &reg);
3711 if (i != 0)
3713 cs_error(link, AccessConfigurationRegister, i);
3714 return FALSE;
3717 #ifdef DEBUG_CONFIG_TRACE
3718 printk(KERN_DEBUG "%s: <-wv_pcmcia_reset()\n", dev->name);
3719 #endif
3720 return TRUE;
3723 /*------------------------------------------------------------------*/
3725 * wavelan_hw_config() is called after a CARD_INSERTION event is
3726 * received, to configure the wavelan hardware.
3727 * Note that the reception will be enabled in wavelan->open(), so the
3728 * device is configured but idle...
3729 * Performs the following actions:
3730 * 1. A pcmcia software reset (using wv_pcmcia_reset())
3731 * 2. A power reset (reset DMA)
3732 * 3. Reset the LAN controller
3733 * 4. Initialize the radio modem (using wv_mmc_init)
3734 * 5. Configure LAN controller (using wv_82593_config)
3735 * 6. Perform a diagnostic on the LAN controller
3736 * (called by wavelan_event() & wv_hw_reset())
3738 static int
3739 wv_hw_config(struct net_device * dev)
3741 net_local * lp = netdev_priv(dev);
3742 unsigned int base = dev->base_addr;
3743 unsigned long flags;
3744 int ret = FALSE;
3746 #ifdef DEBUG_CONFIG_TRACE
3747 printk(KERN_DEBUG "%s: ->wv_hw_config()\n", dev->name);
3748 #endif
3750 /* compile-time check the sizes of structures */
3751 BUILD_BUG_ON(sizeof(psa_t) != PSA_SIZE);
3752 BUILD_BUG_ON(sizeof(mmw_t) != MMW_SIZE);
3753 BUILD_BUG_ON(sizeof(mmr_t) != MMR_SIZE);
3755 /* Reset the pcmcia interface */
3756 if(wv_pcmcia_reset(dev) == FALSE)
3757 return FALSE;
3759 /* Disable interrupts */
3760 spin_lock_irqsave(&lp->spinlock, flags);
3762 /* Disguised goto ;-) */
3765 /* Power UP the module + reset the modem + reset host adapter
3766 * (in fact, reset DMA channels) */
3767 hacr_write_slow(base, HACR_RESET);
3768 hacr_write(base, HACR_DEFAULT);
3770 /* Check if the module has been powered up... */
3771 if(hasr_read(base) & HASR_NO_CLK)
3773 #ifdef DEBUG_CONFIG_ERRORS
3774 printk(KERN_WARNING "%s: wv_hw_config(): modem not connected or not a wavelan card\n",
3775 dev->name);
3776 #endif
3777 break;
3780 /* initialize the modem */
3781 if(wv_mmc_init(dev) == FALSE)
3783 #ifdef DEBUG_CONFIG_ERRORS
3784 printk(KERN_WARNING "%s: wv_hw_config(): Can't configure the modem\n",
3785 dev->name);
3786 #endif
3787 break;
3790 /* reset the LAN controller (i82593) */
3791 outb(OP0_RESET, LCCR(base));
3792 mdelay(1); /* A bit crude ! */
3794 /* Initialize the LAN controller */
3795 if(wv_82593_config(dev) == FALSE)
3797 #ifdef DEBUG_CONFIG_ERRORS
3798 printk(KERN_INFO "%s: wv_hw_config(): i82593 init failed\n",
3799 dev->name);
3800 #endif
3801 break;
3804 /* Diagnostic */
3805 if(wv_diag(dev) == FALSE)
3807 #ifdef DEBUG_CONFIG_ERRORS
3808 printk(KERN_INFO "%s: wv_hw_config(): i82593 diagnostic failed\n",
3809 dev->name);
3810 #endif
3811 break;
3815 * insert code for loopback test here
3818 /* The device is now configured */
3819 lp->configured = 1;
3820 ret = TRUE;
3822 while(0);
3824 /* Re-enable interrupts */
3825 spin_unlock_irqrestore(&lp->spinlock, flags);
3827 #ifdef DEBUG_CONFIG_TRACE
3828 printk(KERN_DEBUG "%s: <-wv_hw_config()\n", dev->name);
3829 #endif
3830 return(ret);
3833 /*------------------------------------------------------------------*/
3835 * Totally reset the wavelan and restart it.
3836 * Performs the following actions:
3837 * 1. Call wv_hw_config()
3838 * 2. Start the LAN controller's receive unit
3839 * (called by wavelan_event(), wavelan_watchdog() and wavelan_open())
3841 static void
3842 wv_hw_reset(struct net_device * dev)
3844 net_local * lp = netdev_priv(dev);
3846 #ifdef DEBUG_CONFIG_TRACE
3847 printk(KERN_DEBUG "%s: ->wv_hw_reset()\n", dev->name);
3848 #endif
3850 lp->nresets++;
3851 lp->configured = 0;
3853 /* Call wv_hw_config() for most of the reset & init stuff */
3854 if(wv_hw_config(dev) == FALSE)
3855 return;
3857 /* start receive unit */
3858 wv_ru_start(dev);
3860 #ifdef DEBUG_CONFIG_TRACE
3861 printk(KERN_DEBUG "%s: <-wv_hw_reset()\n", dev->name);
3862 #endif
3865 /*------------------------------------------------------------------*/
3867 * wv_pcmcia_config() is called after a CARD_INSERTION event is
3868 * received, to configure the PCMCIA socket, and to make the ethernet
3869 * device available to the system.
3870 * (called by wavelan_event())
3872 static int
3873 wv_pcmcia_config(struct pcmcia_device * link)
3875 struct net_device * dev = (struct net_device *) link->priv;
3876 int i;
3877 win_req_t req;
3878 memreq_t mem;
3879 net_local * lp = netdev_priv(dev);
3882 #ifdef DEBUG_CONFIG_TRACE
3883 printk(KERN_DEBUG "->wv_pcmcia_config(0x%p)\n", link);
3884 #endif
3888 i = pcmcia_request_io(link, &link->io);
3889 if (i != 0)
3891 cs_error(link, RequestIO, i);
3892 break;
3896 * Now allocate an interrupt line. Note that this does not
3897 * actually assign a handler to the interrupt.
3899 i = pcmcia_request_irq(link, &link->irq);
3900 if (i != 0)
3902 cs_error(link, RequestIRQ, i);
3903 break;
3907 * This actually configures the PCMCIA socket -- setting up
3908 * the I/O windows and the interrupt mapping.
3910 link->conf.ConfigIndex = 1;
3911 i = pcmcia_request_configuration(link, &link->conf);
3912 if (i != 0)
3914 cs_error(link, RequestConfiguration, i);
3915 break;
3919 * Allocate a small memory window. Note that the struct pcmcia_device
3920 * structure provides space for one window handle -- if your
3921 * device needs several windows, you'll need to keep track of
3922 * the handles in your private data structure, link->priv.
3924 req.Attributes = WIN_DATA_WIDTH_8|WIN_MEMORY_TYPE_AM|WIN_ENABLE;
3925 req.Base = req.Size = 0;
3926 req.AccessSpeed = mem_speed;
3927 i = pcmcia_request_window(&link, &req, &link->win);
3928 if (i != 0)
3930 cs_error(link, RequestWindow, i);
3931 break;
3934 lp->mem = ioremap(req.Base, req.Size);
3935 dev->mem_start = (u_long)lp->mem;
3936 dev->mem_end = dev->mem_start + req.Size;
3938 mem.CardOffset = 0; mem.Page = 0;
3939 i = pcmcia_map_mem_page(link->win, &mem);
3940 if (i != 0)
3942 cs_error(link, MapMemPage, i);
3943 break;
3946 /* Feed device with this info... */
3947 dev->irq = link->irq.AssignedIRQ;
3948 dev->base_addr = link->io.BasePort1;
3949 netif_start_queue(dev);
3951 #ifdef DEBUG_CONFIG_INFO
3952 printk(KERN_DEBUG "wv_pcmcia_config: MEMSTART %p IRQ %d IOPORT 0x%x\n",
3953 lp->mem, dev->irq, (u_int) dev->base_addr);
3954 #endif
3956 SET_NETDEV_DEV(dev, &handle_to_dev(link));
3957 i = register_netdev(dev);
3958 if(i != 0)
3960 #ifdef DEBUG_CONFIG_ERRORS
3961 printk(KERN_INFO "wv_pcmcia_config(): register_netdev() failed\n");
3962 #endif
3963 break;
3966 while(0); /* Humm... Disguised goto !!! */
3968 /* If any step failed, release any partially configured state */
3969 if(i != 0)
3971 wv_pcmcia_release(link);
3972 return FALSE;
3975 strcpy(((net_local *) netdev_priv(dev))->node.dev_name, dev->name);
3976 link->dev_node = &((net_local *) netdev_priv(dev))->node;
3978 #ifdef DEBUG_CONFIG_TRACE
3979 printk(KERN_DEBUG "<-wv_pcmcia_config()\n");
3980 #endif
3981 return TRUE;
3984 /*------------------------------------------------------------------*/
3986 * After a card is removed, wv_pcmcia_release() will unregister the net
3987 * device, and release the PCMCIA configuration. If the device is
3988 * still open, this will be postponed until it is closed.
3990 static void
3991 wv_pcmcia_release(struct pcmcia_device *link)
3993 struct net_device * dev = (struct net_device *) link->priv;
3994 net_local * lp = netdev_priv(dev);
3996 #ifdef DEBUG_CONFIG_TRACE
3997 printk(KERN_DEBUG "%s: -> wv_pcmcia_release(0x%p)\n", dev->name, link);
3998 #endif
4000 iounmap(lp->mem);
4001 pcmcia_disable_device(link);
4003 #ifdef DEBUG_CONFIG_TRACE
4004 printk(KERN_DEBUG "%s: <- wv_pcmcia_release()\n", dev->name);
4005 #endif
4008 /************************ INTERRUPT HANDLING ************************/
4011 * This function is the interrupt handler for the WaveLAN card. This
4012 * routine will be called whenever:
4013 * 1. A packet is received.
4014 * 2. A packet has successfully been transferred and the unit is
4015 * ready to transmit another packet.
4016 * 3. A command has completed execution.
4018 static irqreturn_t
4019 wavelan_interrupt(int irq,
4020 void * dev_id)
4022 struct net_device * dev = dev_id;
4023 net_local * lp;
4024 unsigned int base;
4025 int status0;
4026 u_int tx_status;
4028 #ifdef DEBUG_INTERRUPT_TRACE
4029 printk(KERN_DEBUG "%s: ->wavelan_interrupt()\n", dev->name);
4030 #endif
4032 lp = netdev_priv(dev);
4033 base = dev->base_addr;
4035 #ifdef DEBUG_INTERRUPT_INFO
4036 /* Check state of our spinlock (it should be cleared) */
4037 if(spin_is_locked(&lp->spinlock))
4038 printk(KERN_DEBUG
4039 "%s: wavelan_interrupt(): spinlock is already locked !!!\n",
4040 dev->name);
4041 #endif
4043 /* Prevent reentrancy. We need to do that because we may have
4044 * multiple interrupt handler running concurently.
4045 * It is safe because interrupts are disabled before aquiring
4046 * the spinlock. */
4047 spin_lock(&lp->spinlock);
4049 /* Treat all pending interrupts */
4050 while(1)
4052 /* ---------------- INTERRUPT CHECKING ---------------- */
4054 * Look for the interrupt and verify the validity
4056 outb(CR0_STATUS_0 | OP0_NOP, LCCR(base));
4057 status0 = inb(LCSR(base));
4059 #ifdef DEBUG_INTERRUPT_INFO
4060 printk(KERN_DEBUG "status0 0x%x [%s => 0x%x]", status0,
4061 (status0&SR0_INTERRUPT)?"int":"no int",status0&~SR0_INTERRUPT);
4062 if(status0&SR0_INTERRUPT)
4064 printk(" [%s => %d]\n", (status0 & SR0_CHNL) ? "chnl" :
4065 ((status0 & SR0_EXECUTION) ? "cmd" :
4066 ((status0 & SR0_RECEPTION) ? "recv" : "unknown")),
4067 (status0 & SR0_EVENT_MASK));
4069 else
4070 printk("\n");
4071 #endif
4073 /* Return if no actual interrupt from i82593 (normal exit) */
4074 if(!(status0 & SR0_INTERRUPT))
4075 break;
4077 /* If interrupt is both Rx and Tx or none...
4078 * This code in fact is there to catch the spurious interrupt
4079 * when you remove the wavelan pcmcia card from the socket */
4080 if(((status0 & SR0_BOTH_RX_TX) == SR0_BOTH_RX_TX) ||
4081 ((status0 & SR0_BOTH_RX_TX) == 0x0))
4083 #ifdef DEBUG_INTERRUPT_INFO
4084 printk(KERN_INFO "%s: wv_interrupt(): bogus interrupt (or from dead card) : %X\n",
4085 dev->name, status0);
4086 #endif
4087 /* Acknowledge the interrupt */
4088 outb(CR0_INT_ACK | OP0_NOP, LCCR(base));
4089 break;
4092 /* ----------------- RECEIVING PACKET ----------------- */
4094 * When the wavelan signal the reception of a new packet,
4095 * we call wv_packet_rcv() to copy if from the buffer and
4096 * send it to NET3
4098 if(status0 & SR0_RECEPTION)
4100 #ifdef DEBUG_INTERRUPT_INFO
4101 printk(KERN_DEBUG "%s: wv_interrupt(): receive\n", dev->name);
4102 #endif
4104 if((status0 & SR0_EVENT_MASK) == SR0_STOP_REG_HIT)
4106 #ifdef DEBUG_INTERRUPT_ERROR
4107 printk(KERN_INFO "%s: wv_interrupt(): receive buffer overflow\n",
4108 dev->name);
4109 #endif
4110 lp->stats.rx_over_errors++;
4111 lp->overrunning = 1;
4114 /* Get the packet */
4115 wv_packet_rcv(dev);
4116 lp->overrunning = 0;
4118 /* Acknowledge the interrupt */
4119 outb(CR0_INT_ACK | OP0_NOP, LCCR(base));
4120 continue;
4123 /* ---------------- COMMAND COMPLETION ---------------- */
4125 * Interrupts issued when the i82593 has completed a command.
4126 * Most likely : transmission done
4129 /* If a transmission has been done */
4130 if((status0 & SR0_EVENT_MASK) == SR0_TRANSMIT_DONE ||
4131 (status0 & SR0_EVENT_MASK) == SR0_RETRANSMIT_DONE ||
4132 (status0 & SR0_EVENT_MASK) == SR0_TRANSMIT_NO_CRC_DONE)
4134 #ifdef DEBUG_TX_ERROR
4135 if((status0 & SR0_EVENT_MASK) == SR0_TRANSMIT_NO_CRC_DONE)
4136 printk(KERN_INFO "%s: wv_interrupt(): packet transmitted without CRC.\n",
4137 dev->name);
4138 #endif
4140 /* Get transmission status */
4141 tx_status = inb(LCSR(base));
4142 tx_status |= (inb(LCSR(base)) << 8);
4143 #ifdef DEBUG_INTERRUPT_INFO
4144 printk(KERN_DEBUG "%s: wv_interrupt(): transmission done\n",
4145 dev->name);
4147 u_int rcv_bytes;
4148 u_char status3;
4149 rcv_bytes = inb(LCSR(base));
4150 rcv_bytes |= (inb(LCSR(base)) << 8);
4151 status3 = inb(LCSR(base));
4152 printk(KERN_DEBUG "tx_status 0x%02x rcv_bytes 0x%02x status3 0x%x\n",
4153 tx_status, rcv_bytes, (u_int) status3);
4155 #endif
4156 /* Check for possible errors */
4157 if((tx_status & TX_OK) != TX_OK)
4159 lp->stats.tx_errors++;
4161 if(tx_status & TX_FRTL)
4163 #ifdef DEBUG_TX_ERROR
4164 printk(KERN_INFO "%s: wv_interrupt(): frame too long\n",
4165 dev->name);
4166 #endif
4168 if(tx_status & TX_UND_RUN)
4170 #ifdef DEBUG_TX_FAIL
4171 printk(KERN_DEBUG "%s: wv_interrupt(): DMA underrun\n",
4172 dev->name);
4173 #endif
4174 lp->stats.tx_aborted_errors++;
4176 if(tx_status & TX_LOST_CTS)
4178 #ifdef DEBUG_TX_FAIL
4179 printk(KERN_DEBUG "%s: wv_interrupt(): no CTS\n", dev->name);
4180 #endif
4181 lp->stats.tx_carrier_errors++;
4183 if(tx_status & TX_LOST_CRS)
4185 #ifdef DEBUG_TX_FAIL
4186 printk(KERN_DEBUG "%s: wv_interrupt(): no carrier\n",
4187 dev->name);
4188 #endif
4189 lp->stats.tx_carrier_errors++;
4191 if(tx_status & TX_HRT_BEAT)
4193 #ifdef DEBUG_TX_FAIL
4194 printk(KERN_DEBUG "%s: wv_interrupt(): heart beat\n", dev->name);
4195 #endif
4196 lp->stats.tx_heartbeat_errors++;
4198 if(tx_status & TX_DEFER)
4200 #ifdef DEBUG_TX_FAIL
4201 printk(KERN_DEBUG "%s: wv_interrupt(): channel jammed\n",
4202 dev->name);
4203 #endif
4205 /* Ignore late collisions since they're more likely to happen
4206 * here (the WaveLAN design prevents the LAN controller from
4207 * receiving while it is transmitting). We take action only when
4208 * the maximum retransmit attempts is exceeded.
4210 if(tx_status & TX_COLL)
4212 if(tx_status & TX_MAX_COL)
4214 #ifdef DEBUG_TX_FAIL
4215 printk(KERN_DEBUG "%s: wv_interrupt(): channel congestion\n",
4216 dev->name);
4217 #endif
4218 if(!(tx_status & TX_NCOL_MASK))
4220 lp->stats.collisions += 0x10;
4224 } /* if(!(tx_status & TX_OK)) */
4226 lp->stats.collisions += (tx_status & TX_NCOL_MASK);
4227 lp->stats.tx_packets++;
4229 netif_wake_queue(dev);
4230 outb(CR0_INT_ACK | OP0_NOP, LCCR(base)); /* Acknowledge the interrupt */
4232 else /* if interrupt = transmit done or retransmit done */
4234 #ifdef DEBUG_INTERRUPT_ERROR
4235 printk(KERN_INFO "wavelan_cs: unknown interrupt, status0 = %02x\n",
4236 status0);
4237 #endif
4238 outb(CR0_INT_ACK | OP0_NOP, LCCR(base)); /* Acknowledge the interrupt */
4240 } /* while(1) */
4242 spin_unlock(&lp->spinlock);
4244 #ifdef DEBUG_INTERRUPT_TRACE
4245 printk(KERN_DEBUG "%s: <-wavelan_interrupt()\n", dev->name);
4246 #endif
4248 /* We always return IRQ_HANDLED, because we will receive empty
4249 * interrupts under normal operations. Anyway, it doesn't matter
4250 * as we are dealing with an ISA interrupt that can't be shared.
4252 * Explanation : under heavy receive, the following happens :
4253 * ->wavelan_interrupt()
4254 * (status0 & SR0_INTERRUPT) != 0
4255 * ->wv_packet_rcv()
4256 * (status0 & SR0_INTERRUPT) != 0
4257 * ->wv_packet_rcv()
4258 * (status0 & SR0_INTERRUPT) == 0 // i.e. no more event
4259 * <-wavelan_interrupt()
4260 * ->wavelan_interrupt()
4261 * (status0 & SR0_INTERRUPT) == 0 // i.e. empty interrupt
4262 * <-wavelan_interrupt()
4263 * Jean II */
4264 return IRQ_HANDLED;
4265 } /* wv_interrupt */
4267 /*------------------------------------------------------------------*/
4269 * Watchdog: when we start a transmission, a timer is set for us in the
4270 * kernel. If the transmission completes, this timer is disabled. If
4271 * the timer expires, we are called and we try to unlock the hardware.
4273 * Note : This watchdog is move clever than the one in the ISA driver,
4274 * because it try to abort the current command before reseting
4275 * everything...
4276 * On the other hand, it's a bit simpler, because we don't have to
4277 * deal with the multiple Tx buffers...
4279 static void
4280 wavelan_watchdog(struct net_device * dev)
4282 net_local * lp = netdev_priv(dev);
4283 unsigned int base = dev->base_addr;
4284 unsigned long flags;
4285 int aborted = FALSE;
4287 #ifdef DEBUG_INTERRUPT_TRACE
4288 printk(KERN_DEBUG "%s: ->wavelan_watchdog()\n", dev->name);
4289 #endif
4291 #ifdef DEBUG_INTERRUPT_ERROR
4292 printk(KERN_INFO "%s: wavelan_watchdog: watchdog timer expired\n",
4293 dev->name);
4294 #endif
4296 spin_lock_irqsave(&lp->spinlock, flags);
4298 /* Ask to abort the current command */
4299 outb(OP0_ABORT, LCCR(base));
4301 /* Wait for the end of the command (a bit hackish) */
4302 if(wv_82593_cmd(dev, "wavelan_watchdog(): abort",
4303 OP0_NOP | CR0_STATUS_3, SR0_EXECUTION_ABORTED))
4304 aborted = TRUE;
4306 /* Release spinlock here so that wv_hw_reset() can grab it */
4307 spin_unlock_irqrestore(&lp->spinlock, flags);
4309 /* Check if we were successful in aborting it */
4310 if(!aborted)
4312 /* It seem that it wasn't enough */
4313 #ifdef DEBUG_INTERRUPT_ERROR
4314 printk(KERN_INFO "%s: wavelan_watchdog: abort failed, trying reset\n",
4315 dev->name);
4316 #endif
4317 wv_hw_reset(dev);
4320 #ifdef DEBUG_PSA_SHOW
4322 psa_t psa;
4323 psa_read(dev, 0, (unsigned char *) &psa, sizeof(psa));
4324 wv_psa_show(&psa);
4326 #endif
4327 #ifdef DEBUG_MMC_SHOW
4328 wv_mmc_show(dev);
4329 #endif
4330 #ifdef DEBUG_I82593_SHOW
4331 wv_ru_show(dev);
4332 #endif
4334 /* We are no more waiting for something... */
4335 netif_wake_queue(dev);
4337 #ifdef DEBUG_INTERRUPT_TRACE
4338 printk(KERN_DEBUG "%s: <-wavelan_watchdog()\n", dev->name);
4339 #endif
4342 /********************* CONFIGURATION CALLBACKS *********************/
4344 * Here are the functions called by the pcmcia package (cardmgr) and
4345 * linux networking (NET3) for initialization, configuration and
4346 * deinstallations of the Wavelan Pcmcia Hardware.
4349 /*------------------------------------------------------------------*/
4351 * Configure and start up the WaveLAN PCMCIA adaptor.
4352 * Called by NET3 when it "open" the device.
4354 static int
4355 wavelan_open(struct net_device * dev)
4357 net_local * lp = netdev_priv(dev);
4358 struct pcmcia_device * link = lp->link;
4359 unsigned int base = dev->base_addr;
4361 #ifdef DEBUG_CALLBACK_TRACE
4362 printk(KERN_DEBUG "%s: ->wavelan_open(dev=0x%x)\n", dev->name,
4363 (unsigned int) dev);
4364 #endif
4366 /* Check if the modem is powered up (wavelan_close() power it down */
4367 if(hasr_read(base) & HASR_NO_CLK)
4369 /* Power up (power up time is 250us) */
4370 hacr_write(base, HACR_DEFAULT);
4372 /* Check if the module has been powered up... */
4373 if(hasr_read(base) & HASR_NO_CLK)
4375 #ifdef DEBUG_CONFIG_ERRORS
4376 printk(KERN_WARNING "%s: wavelan_open(): modem not connected\n",
4377 dev->name);
4378 #endif
4379 return FALSE;
4383 /* Start reception and declare the driver ready */
4384 if(!lp->configured)
4385 return FALSE;
4386 if(!wv_ru_start(dev))
4387 wv_hw_reset(dev); /* If problem : reset */
4388 netif_start_queue(dev);
4390 /* Mark the device as used */
4391 link->open++;
4393 #ifdef WAVELAN_ROAMING
4394 if(do_roaming)
4395 wv_roam_init(dev);
4396 #endif /* WAVELAN_ROAMING */
4398 #ifdef DEBUG_CALLBACK_TRACE
4399 printk(KERN_DEBUG "%s: <-wavelan_open()\n", dev->name);
4400 #endif
4401 return 0;
4404 /*------------------------------------------------------------------*/
4406 * Shutdown the WaveLAN PCMCIA adaptor.
4407 * Called by NET3 when it "close" the device.
4409 static int
4410 wavelan_close(struct net_device * dev)
4412 struct pcmcia_device * link = ((net_local *)netdev_priv(dev))->link;
4413 unsigned int base = dev->base_addr;
4415 #ifdef DEBUG_CALLBACK_TRACE
4416 printk(KERN_DEBUG "%s: ->wavelan_close(dev=0x%x)\n", dev->name,
4417 (unsigned int) dev);
4418 #endif
4420 /* If the device isn't open, then nothing to do */
4421 if(!link->open)
4423 #ifdef DEBUG_CONFIG_INFO
4424 printk(KERN_DEBUG "%s: wavelan_close(): device not open\n", dev->name);
4425 #endif
4426 return 0;
4429 #ifdef WAVELAN_ROAMING
4430 /* Cleanup of roaming stuff... */
4431 if(do_roaming)
4432 wv_roam_cleanup(dev);
4433 #endif /* WAVELAN_ROAMING */
4435 link->open--;
4437 /* If the card is still present */
4438 if(netif_running(dev))
4440 netif_stop_queue(dev);
4442 /* Stop receiving new messages and wait end of transmission */
4443 wv_ru_stop(dev);
4445 /* Power down the module */
4446 hacr_write(base, HACR_DEFAULT & (~HACR_PWR_STAT));
4449 #ifdef DEBUG_CALLBACK_TRACE
4450 printk(KERN_DEBUG "%s: <-wavelan_close()\n", dev->name);
4451 #endif
4452 return 0;
4455 /*------------------------------------------------------------------*/
4457 * wavelan_attach() creates an "instance" of the driver, allocating
4458 * local data structures for one device (one interface). The device
4459 * is registered with Card Services.
4461 * The dev_link structure is initialized, but we don't actually
4462 * configure the card at this point -- we wait until we receive a
4463 * card insertion event.
4465 static int
4466 wavelan_probe(struct pcmcia_device *p_dev)
4468 struct net_device * dev; /* Interface generic data */
4469 net_local * lp; /* Interface specific data */
4470 int ret;
4472 #ifdef DEBUG_CALLBACK_TRACE
4473 printk(KERN_DEBUG "-> wavelan_attach()\n");
4474 #endif
4476 /* The io structure describes IO port mapping */
4477 p_dev->io.NumPorts1 = 8;
4478 p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
4479 p_dev->io.IOAddrLines = 3;
4481 /* Interrupt setup */
4482 p_dev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING | IRQ_HANDLE_PRESENT;
4483 p_dev->irq.IRQInfo1 = IRQ_LEVEL_ID;
4484 p_dev->irq.Handler = wavelan_interrupt;
4486 /* General socket configuration */
4487 p_dev->conf.Attributes = CONF_ENABLE_IRQ;
4488 p_dev->conf.IntType = INT_MEMORY_AND_IO;
4490 /* Allocate the generic data structure */
4491 dev = alloc_etherdev(sizeof(net_local));
4492 if (!dev)
4493 return -ENOMEM;
4495 p_dev->priv = p_dev->irq.Instance = dev;
4497 lp = netdev_priv(dev);
4499 /* Init specific data */
4500 lp->configured = 0;
4501 lp->reconfig_82593 = FALSE;
4502 lp->nresets = 0;
4503 /* Multicast stuff */
4504 lp->promiscuous = 0;
4505 lp->allmulticast = 0;
4506 lp->mc_count = 0;
4508 /* Init spinlock */
4509 spin_lock_init(&lp->spinlock);
4511 /* back links */
4512 lp->dev = dev;
4514 /* wavelan NET3 callbacks */
4515 dev->open = &wavelan_open;
4516 dev->stop = &wavelan_close;
4517 dev->hard_start_xmit = &wavelan_packet_xmit;
4518 dev->get_stats = &wavelan_get_stats;
4519 dev->set_multicast_list = &wavelan_set_multicast_list;
4520 #ifdef SET_MAC_ADDRESS
4521 dev->set_mac_address = &wavelan_set_mac_address;
4522 #endif /* SET_MAC_ADDRESS */
4524 /* Set the watchdog timer */
4525 dev->tx_timeout = &wavelan_watchdog;
4526 dev->watchdog_timeo = WATCHDOG_JIFFIES;
4527 SET_ETHTOOL_OPS(dev, &ops);
4529 dev->wireless_handlers = &wavelan_handler_def;
4530 lp->wireless_data.spy_data = &lp->spy_data;
4531 dev->wireless_data = &lp->wireless_data;
4533 /* Other specific data */
4534 dev->mtu = WAVELAN_MTU;
4536 ret = wv_pcmcia_config(p_dev);
4537 if (ret)
4538 return ret;
4540 ret = wv_hw_config(dev);
4541 if (ret) {
4542 dev->irq = 0;
4543 pcmcia_disable_device(p_dev);
4544 return ret;
4547 wv_init_info(dev);
4549 #ifdef DEBUG_CALLBACK_TRACE
4550 printk(KERN_DEBUG "<- wavelan_attach()\n");
4551 #endif
4553 return 0;
4556 /*------------------------------------------------------------------*/
4558 * This deletes a driver "instance". The device is de-registered with
4559 * Card Services. If it has been released, all local data structures
4560 * are freed. Otherwise, the structures will be freed when the device
4561 * is released.
4563 static void
4564 wavelan_detach(struct pcmcia_device *link)
4566 #ifdef DEBUG_CALLBACK_TRACE
4567 printk(KERN_DEBUG "-> wavelan_detach(0x%p)\n", link);
4568 #endif
4570 /* Some others haven't done their job : give them another chance */
4571 wv_pcmcia_release(link);
4573 /* Free pieces */
4574 if(link->priv)
4576 struct net_device * dev = (struct net_device *) link->priv;
4578 /* Remove ourselves from the kernel list of ethernet devices */
4579 /* Warning : can't be called from interrupt, timer or wavelan_close() */
4580 if (link->dev_node)
4581 unregister_netdev(dev);
4582 link->dev_node = NULL;
4583 ((net_local *)netdev_priv(dev))->link = NULL;
4584 ((net_local *)netdev_priv(dev))->dev = NULL;
4585 free_netdev(dev);
4588 #ifdef DEBUG_CALLBACK_TRACE
4589 printk(KERN_DEBUG "<- wavelan_detach()\n");
4590 #endif
4593 static int wavelan_suspend(struct pcmcia_device *link)
4595 struct net_device * dev = (struct net_device *) link->priv;
4597 /* NB: wavelan_close will be called, but too late, so we are
4598 * obliged to close nicely the wavelan here. David, could you
4599 * close the device before suspending them ? And, by the way,
4600 * could you, on resume, add a "route add -net ..." after the
4601 * ifconfig up ? Thanks... */
4603 /* Stop receiving new messages and wait end of transmission */
4604 wv_ru_stop(dev);
4606 if (link->open)
4607 netif_device_detach(dev);
4609 /* Power down the module */
4610 hacr_write(dev->base_addr, HACR_DEFAULT & (~HACR_PWR_STAT));
4612 return 0;
4615 static int wavelan_resume(struct pcmcia_device *link)
4617 struct net_device * dev = (struct net_device *) link->priv;
4619 if (link->open) {
4620 wv_hw_reset(dev);
4621 netif_device_attach(dev);
4624 return 0;
4628 static struct pcmcia_device_id wavelan_ids[] = {
4629 PCMCIA_DEVICE_PROD_ID12("AT&T","WaveLAN/PCMCIA", 0xe7c5affd, 0x1bc50975),
4630 PCMCIA_DEVICE_PROD_ID12("Digital", "RoamAbout/DS", 0x9999ab35, 0x00d05e06),
4631 PCMCIA_DEVICE_PROD_ID12("Lucent Technologies", "WaveLAN/PCMCIA", 0x23eb9949, 0x1bc50975),
4632 PCMCIA_DEVICE_PROD_ID12("NCR", "WaveLAN/PCMCIA", 0x24358cd4, 0x1bc50975),
4633 PCMCIA_DEVICE_NULL,
4635 MODULE_DEVICE_TABLE(pcmcia, wavelan_ids);
4637 static struct pcmcia_driver wavelan_driver = {
4638 .owner = THIS_MODULE,
4639 .drv = {
4640 .name = "wavelan_cs",
4642 .probe = wavelan_probe,
4643 .remove = wavelan_detach,
4644 .id_table = wavelan_ids,
4645 .suspend = wavelan_suspend,
4646 .resume = wavelan_resume,
4649 static int __init
4650 init_wavelan_cs(void)
4652 return pcmcia_register_driver(&wavelan_driver);
4655 static void __exit
4656 exit_wavelan_cs(void)
4658 pcmcia_unregister_driver(&wavelan_driver);
4661 module_init(init_wavelan_cs);
4662 module_exit(exit_wavelan_cs);