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1 /* $Id: c4.c,v 1.1.2.2 2004/01/16 21:09:27 kei 1
2 *
3 * Module for AVM C4 & C2 card.
4 *
5 * Copyright 1999 by Carsten Paeth <calle@call
6 *
7 * This software may be used and distributed a
8 * of the GNU General Public License, incorpor
9 *
10 */
11
12 #include <linux/module.h>
13 #include <linux/kernel.h>
14 #include <linux/skbuff.h>
15 #include <linux/delay.h>
16 #include <linux/mm.h>
17 #include <linux/interrupt.h>
18 #include <linux/ioport.h>
19 #include <linux/pci.h>
20 #include <linux/capi.h>
21 #include <linux/kernelcapi.h>
22 #include <linux/init.h>
23 #include <asm/io.h>
24 #include <asm/uaccess.h>
25 #include <linux/netdevice.h>
26 #include <linux/isdn/capicmd.h>
27 #include <linux/isdn/capiutil.h>
28 #include <linux/isdn/capilli.h>
29 #include "avmcard.h"
30
31 #undef AVM_C4_DEBUG
32 #undef AVM_C4_POLLDEBUG
33
34 /* -------------------------------------------
35
36 static char *revision = "$Revision: 1.1.2.2 $"
37
38 /* -------------------------------------------
39
40 static int suppress_pollack;
41
42 static struct pci_device_id c4_pci_tbl[] = {
43 { PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC
44 { PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC
45 { } /* Terminating
46 };
47
48 MODULE_DEVICE_TABLE(pci, c4_pci_tbl);
49 MODULE_DESCRIPTION("CAPI4Linux: Driver for AVM
50 MODULE_AUTHOR("Carsten Paeth");
51 MODULE_LICENSE("GPL");
52 module_param(suppress_pollack, bool, 0);
53
54 /* -------------------------------------------
55
56 static void c4_dispatch_tx(avmcard *card);
57
58 /* -------------------------------------------
59
60 #define DC21285_DRAM_A0MR 0x40000000
61 #define DC21285_DRAM_A1MR 0x40004000
62 #define DC21285_DRAM_A2MR 0x40008000
63 #define DC21285_DRAM_A3MR 0x4000C000
64
65 #define CAS_OFFSET 0x88
66
67 #define DC21285_ARMCSR_BASE 0x42000000
68
69 #define PCI_OUT_INT_STATUS 0x30
70 #define PCI_OUT_INT_MASK 0x34
71 #define MAILBOX_0 0x50
72 #define MAILBOX_1 0x54
73 #define MAILBOX_2 0x58
74 #define MAILBOX_3 0x5C
75 #define DOORBELL 0x60
76 #define DOORBELL_SETUP 0x64
77
78 #define CHAN_1_CONTROL 0x90
79 #define CHAN_2_CONTROL 0xB0
80 #define DRAM_TIMING 0x10C
81 #define DRAM_ADDR_SIZE_0 0x110
82 #define DRAM_ADDR_SIZE_1 0x114
83 #define DRAM_ADDR_SIZE_2 0x118
84 #define DRAM_ADDR_SIZE_3 0x11C
85 #define SA_CONTROL 0x13C
86 #define XBUS_CYCLE 0x148
87 #define XBUS_STROBE 0x14C
88 #define DBELL_PCI_MASK 0x150
89 #define DBELL_SA_MASK 0x154
90
91 #define SDRAM_SIZE 0x1000000
92
93 /* -------------------------------------------
94
95 #define MBOX_PEEK_POKE MAILBOX_0
96
97 #define DBELL_ADDR 0x01
98 #define DBELL_DATA 0x02
99 #define DBELL_RNWR 0x40
100 #define DBELL_INIT 0x80
101
102 /* -------------------------------------------
103
104 #define MBOX_UP_ADDR MAILBOX_0
105 #define MBOX_UP_LEN MAILBOX_1
106 #define MBOX_DOWN_ADDR MAILBOX_2
107 #define MBOX_DOWN_LEN MAILBOX_3
108
109 #define DBELL_UP_HOST 0x00000100
110 #define DBELL_UP_ARM 0x00000200
111 #define DBELL_DOWN_HOST 0x00000400
112 #define DBELL_DOWN_ARM 0x00000800
113 #define DBELL_RESET_HOST 0x40000000
114 #define DBELL_RESET_ARM 0x80000000
115
116 /* -------------------------------------------
117
118 #define DRAM_TIMING_DEF 0x001A01A5
119 #define DRAM_AD_SZ_DEF0 0x00000045
120 #define DRAM_AD_SZ_NULL 0x00000000
121
122 #define SA_CTL_ALLRIGHT 0x64AA0271
123
124 #define INIT_XBUS_CYCLE 0x100016DB
125 #define INIT_XBUS_STROBE 0xF1F1F1F1
126
127 /* -------------------------------------------
128
129 #define RESET_TIMEOUT (15*HZ) /* 15
130 #define PEEK_POKE_TIMEOUT (HZ/10) /* 0.1
131
132 /* -------------------------------------------
133
134 #define c4outmeml(addr, value) writel(value,
135 #define c4inmeml(addr) readl(addr)
136 #define c4outmemw(addr, value) writew(value,
137 #define c4inmemw(addr) readw(addr)
138 #define c4outmemb(addr, value) writeb(value,
139 #define c4inmemb(addr) readb(addr)
140
141 /* -------------------------------------------
142
143 static inline int wait_for_doorbell(avmcard *c
144 {
145 unsigned long stop;
146
147 stop = jiffies + t;
148 while (c4inmeml(card->mbase+DOORBELL)
149 if (!time_before(jiffies, stop
150 return -1;
151 mb();
152 }
153 return 0;
154 }
155
156 static int c4_poke(avmcard *card, unsigned lo
157 {
158
159 if (wait_for_doorbell(card, HZ/10) < 0
160 return -1;
161
162 c4outmeml(card->mbase+MBOX_PEEK_POKE,
163 c4outmeml(card->mbase+DOORBELL, DBELL_
164
165 if (wait_for_doorbell(card, HZ/10) < 0
166 return -1;
167
168 c4outmeml(card->mbase+MBOX_PEEK_POKE,
169 c4outmeml(card->mbase+DOORBELL, DBELL_
170
171 return 0;
172 }
173
174 static int c4_peek(avmcard *card, unsigned lo
175 {
176 if (wait_for_doorbell(card, HZ/10) < 0
177 return -1;
178
179 c4outmeml(card->mbase+MBOX_PEEK_POKE,
180 c4outmeml(card->mbase+DOORBELL, DBELL_
181
182 if (wait_for_doorbell(card, HZ/10) < 0
183 return -1;
184
185 *valuep = c4inmeml(card->mbase+MBOX_PE
186
187 return 0;
188 }
189
190 /* -------------------------------------------
191
192 static int c4_load_t4file(avmcard *card, capil
193 {
194 u32 val;
195 unsigned char *dp;
196 u_int left;
197 u32 loadoff = 0;
198
199 dp = t4file->data;
200 left = t4file->len;
201 while (left >= sizeof(u32)) {
202 if (t4file->user) {
203 if (copy_from_user(&va
204 return -EFAULT
205 } else {
206 memcpy(&val, dp, sizeo
207 }
208 if (c4_poke(card, loadoff, val
209 printk(KERN_ERR "%s: c
210 card->
211 return -EIO;
212 }
213 left -= sizeof(u32);
214 dp += sizeof(u32);
215 loadoff += sizeof(u32);
216 }
217 if (left) {
218 val = 0;
219 if (t4file->user) {
220 if (copy_from_user(&va
221 return -EFAULT
222 } else {
223 memcpy(&val, dp, left)
224 }
225 if (c4_poke(card, loadoff, val
226 printk(KERN_ERR "%s: c
227 card->
228 return -EIO;
229 }
230 }
231 return 0;
232 }
233
234 /* -------------------------------------------
235
236 static inline void _put_byte(void **pp, u8 val
237 {
238 u8 *s = *pp;
239 *s++ = val;
240 *pp = s;
241 }
242
243 static inline void _put_word(void **pp, u32 va
244 {
245 u8 *s = *pp;
246 *s++ = val & 0xff;
247 *s++ = (val >> 8) & 0xff;
248 *s++ = (val >> 16) & 0xff;
249 *s++ = (val >> 24) & 0xff;
250 *pp = s;
251 }
252
253 static inline void _put_slice(void **pp, unsig
254 {
255 unsigned i = len;
256 _put_word(pp, i);
257 while (i-- > 0)
258 _put_byte(pp, *dp++);
259 }
260
261 static inline u8 _get_byte(void **pp)
262 {
263 u8 *s = *pp;
264 u8 val;
265 val = *s++;
266 *pp = s;
267 return val;
268 }
269
270 static inline u32 _get_word(void **pp)
271 {
272 u8 *s = *pp;
273 u32 val;
274 val = *s++;
275 val |= (*s++ << 8);
276 val |= (*s++ << 16);
277 val |= (*s++ << 24);
278 *pp = s;
279 return val;
280 }
281
282 static inline u32 _get_slice(void **pp, unsign
283 {
284 unsigned int len, i;
285
286 len = i = _get_word(pp);
287 while (i-- > 0) *dp++ = _get_byte(pp);
288 return len;
289 }
290
291 /* -------------------------------------------
292
293 static void c4_reset(avmcard *card)
294 {
295 unsigned long stop;
296
297 c4outmeml(card->mbase+DOORBELL, DBELL_
298
299 stop = jiffies + HZ*10;
300 while (c4inmeml(card->mbase+DOORBELL)
301 if (!time_before(jiffies, stop
302 return;
303 c4outmeml(card->mbase+DOORBELL
304 mb();
305 }
306
307 c4_poke(card, DC21285_ARMCSR_BASE + CH
308 c4_poke(card, DC21285_ARMCSR_BASE + CH
309 }
310
311 /* -------------------------------------------
312
313 static int c4_detect(avmcard *card)
314 {
315 unsigned long stop, dummy;
316
317 c4outmeml(card->mbase+PCI_OUT_INT_MASK
318 if (c4inmeml(card->mbase+PCI_OUT_INT_M
319 return 1;
320
321 c4outmeml(card->mbase+DOORBELL, DBELL_
322
323 stop = jiffies + HZ*10;
324 while (c4inmeml(card->mbase+DOORBELL)
325 if (!time_before(jiffies, stop
326 return 2;
327 c4outmeml(card->mbase+DOORBELL
328 mb();
329 }
330
331 c4_poke(card, DC21285_ARMCSR_BASE + CH
332 c4_poke(card, DC21285_ARMCSR_BASE + CH
333
334 c4outmeml(card->mbase+MAILBOX_0, 0x55a
335 if (c4inmeml(card->mbase+MAILBOX_0) !=
336
337 c4outmeml(card->mbase+MAILBOX_0, 0xaa5
338 if (c4inmeml(card->mbase+MAILBOX_0) !=
339
340 if (c4_poke(card, DC21285_ARMCSR_BASE+
341 if (c4_poke(card, DC21285_ARMCSR_BASE+
342 if (c4_poke(card, DC21285_ARMCSR_BASE+
343 return 7;
344 if (c4_poke(card, DC21285_ARMCSR_BASE+
345 return 8;
346 if (c4_poke(card, DC21285_ARMCSR_BASE+
347 return 8;
348 if (c4_poke(card, DC21285_ARMCSR_BASE+
349
350 mdelay(1);
351
352 if (c4_peek(card, DC21285_DRAM_A0MR, &
353 if (c4_peek(card, DC21285_DRAM_A1MR, &
354 if (c4_peek(card, DC21285_DRAM_A2MR, &
355 if (c4_peek(card, DC21285_DRAM_A3MR, &
356
357 if (c4_poke(card, DC21285_DRAM_A0MR+CA
358 if (c4_poke(card, DC21285_DRAM_A1MR+CA
359 if (c4_poke(card, DC21285_DRAM_A2MR+CA
360 if (c4_poke(card, DC21285_DRAM_A3MR+CA
361
362 mdelay(1);
363
364 if (c4_poke(card, DC21285_ARMCSR_BASE+
365 return 18;
366
367 if (c4_poke(card, DC21285_ARMCSR_BASE+
368 return 19;
369 if (c4_poke(card, DC21285_ARMCSR_BASE+
370 return 20;
371 if (c4_poke(card, DC21285_ARMCSR_BASE+
372 return 21;
373 if (c4_poke(card, DC21285_ARMCSR_BASE+
374 return 22;
375
376 /* Transputer test */
377
378 if ( c4_poke(card, 0x000000, 0x11111
379 || c4_poke(card, 0x400000, 0x22222
380 || c4_poke(card, 0x800000, 0x33333
381 || c4_poke(card, 0xC00000, 0x44444
382 return 23;
383
384 if ( c4_peek(card, 0x000000, &dummy)
385 || c4_peek(card, 0x400000, &dummy)
386 || c4_peek(card, 0x800000, &dummy)
387 || c4_peek(card, 0xC00000, &dummy)
388 return 24;
389
390 if ( c4_poke(card, 0x000000, 0x55555
391 || c4_poke(card, 0x400000, 0x66666
392 || c4_poke(card, 0x800000, 0x77777
393 || c4_poke(card, 0xC00000, 0x88888
394 return 25;
395
396 if ( c4_peek(card, 0x000000, &dummy)
397 || c4_peek(card, 0x400000, &dummy)
398 || c4_peek(card, 0x800000, &dummy)
399 || c4_peek(card, 0xC00000, &dummy)
400 return 26;
401
402 return 0;
403 }
404
405 /* -------------------------------------------
406
407 static void c4_dispatch_tx(avmcard *card)
408 {
409 avmcard_dmainfo *dma = card->dma;
410 struct sk_buff *skb;
411 u8 cmd, subcmd;
412 u16 len;
413 u32 txlen;
414 void *p;
415
416
417 if (card->csr & DBELL_DOWN_ARM) { /* t
418 return;
419 }
420
421 skb = skb_dequeue(&dma->send_queue);
422 if (!skb) {
423 #ifdef AVM_C4_DEBUG
424 printk(KERN_DEBUG "%s: tx unde
425 #endif
426 return;
427 }
428
429 len = CAPIMSG_LEN(skb->data);
430
431 if (len) {
432 cmd = CAPIMSG_COMMAND(skb->dat
433 subcmd = CAPIMSG_SUBCOMMAND(sk
434
435 p = dma->sendbuf.dmabuf;
436
437 if (CAPICMD(cmd, subcmd) == CA
438 u16 dlen = CAPIMSG_DAT
439 _put_byte(&p, SEND_DAT
440 _put_slice(&p, skb->da
441 _put_slice(&p, skb->da
442 } else {
443 _put_byte(&p, SEND_MES
444 _put_slice(&p, skb->da
445 }
446 txlen = (u8 *)p - (u8 *)dma->s
447 #ifdef AVM_C4_DEBUG
448 printk(KERN_DEBUG "%s: tx put
449 #endif
450 } else {
451 txlen = skb->len-2;
452 #ifdef AVM_C4_POLLDEBUG
453 if (skb->data[2] == SEND_POLLA
454 printk(KERN_INFO "%s:
455 #endif
456 #ifdef AVM_C4_DEBUG
457 printk(KERN_DEBUG "%s: tx put
458 card->name, sk
459 #endif
460 skb_copy_from_linear_data_offs
461
462 }
463 txlen = (txlen + 3) & ~3;
464
465 c4outmeml(card->mbase+MBOX_DOWN_ADDR,
466 c4outmeml(card->mbase+MBOX_DOWN_LEN, t
467
468 card->csr |= DBELL_DOWN_ARM;
469
470 c4outmeml(card->mbase+DOORBELL, DBELL_
471
472 dev_kfree_skb_any(skb);
473 }
474
475 /* -------------------------------------------
476
477 static void queue_pollack(avmcard *card)
478 {
479 struct sk_buff *skb;
480 void *p;
481
482 skb = alloc_skb(3, GFP_ATOMIC);
483 if (!skb) {
484 printk(KERN_CRIT "%s: no memor
485 card->
486 return;
487 }
488 p = skb->data;
489 _put_byte(&p, 0);
490 _put_byte(&p, 0);
491 _put_byte(&p, SEND_POLLACK);
492 skb_put(skb, (u8 *)p - (u8 *)skb->data
493
494 skb_queue_tail(&card->dma->send_queue,
495 c4_dispatch_tx(card);
496 }
497
498 /* -------------------------------------------
499
500 static void c4_handle_rx(avmcard *card)
501 {
502 avmcard_dmainfo *dma = card->dma;
503 struct capi_ctr *ctrl;
504 avmctrl_info *cinfo;
505 struct sk_buff *skb;
506 void *p = dma->recvbuf.dmabuf;
507 u32 ApplId, MsgLen, DataB3Len, NCCI, W
508 u8 b1cmd = _get_byte(&p);
509 u32 cidx;
510
511
512 #ifdef AVM_C4_DEBUG
513 printk(KERN_DEBUG "%s: rx 0x%x len=%lu
514 b1cmd, (unsign
515 #endif
516
517 switch (b1cmd) {
518 case RECEIVE_DATA_B3_IND:
519
520 ApplId = (unsigned) _get_word(
521 MsgLen = _get_slice(&p, card->
522 DataB3Len = _get_slice(&p, car
523 cidx = CAPIMSG_CONTROLLER(card
524 if (cidx >= card->nlogcontr) c
525 ctrl = &card->ctrlinfo[cidx].c
526
527 if (MsgLen < 30) { /* not CAPI
528 memset(card->msgbuf+Ms
529 MsgLen = 30;
530 CAPIMSG_SETLEN(card->m
531 }
532 if (!(skb = alloc_skb(DataB3Le
533 printk(KERN_ERR "%s: i
534 card->
535 } else {
536 memcpy(skb_put(skb, Ms
537 memcpy(skb_put(skb, Da
538 capi_ctr_handle_messag
539 }
540 break;
541
542 case RECEIVE_MESSAGE:
543
544 ApplId = (unsigned) _get_word(
545 MsgLen = _get_slice(&p, card->
546 cidx = CAPIMSG_CONTROLLER(card
547 if (cidx >= card->nlogcontr) c
548 cinfo = &card->ctrlinfo[cidx];
549 ctrl = &card->ctrlinfo[cidx].c
550
551 if (!(skb = alloc_skb(MsgLen,
552 printk(KERN_ERR "%s: i
553 card->
554 } else {
555 memcpy(skb_put(skb, Ms
556 if (CAPIMSG_CMD(skb->d
557 capilib_data_b
558
559
560
561 capi_ctr_handle_messag
562 }
563 break;
564
565 case RECEIVE_NEW_NCCI:
566
567 ApplId = _get_word(&p);
568 NCCI = _get_word(&p);
569 WindowSize = _get_word(&p);
570 cidx = (NCCI&0x7f) - card->car
571 if (cidx >= card->nlogcontr) c
572
573 capilib_new_ncci(&card->ctrlin
574
575 break;
576
577 case RECEIVE_FREE_NCCI:
578
579 ApplId = _get_word(&p);
580 NCCI = _get_word(&p);
581
582 if (NCCI != 0xffffffff) {
583 cidx = (NCCI&0x7f) - c
584 if (cidx >= card->nlog
585 capilib_free_ncci(&car
586 }
587 break;
588
589 case RECEIVE_START:
590 #ifdef AVM_C4_POLLDEBUG
591 printk(KERN_INFO "%s: poll fro
592 #endif
593 if (!suppress_pollack)
594 queue_pollack(card);
595 for (cidx=0; cidx < card->nr_c
596 ctrl = &card->ctrlinfo
597 capi_ctr_resume_output
598 }
599 break;
600
601 case RECEIVE_STOP:
602 for (cidx=0; cidx < card->nr_c
603 ctrl = &card->ctrlinfo
604 capi_ctr_suspend_outpu
605 }
606 break;
607
608 case RECEIVE_INIT:
609
610 cidx = card->nlogcontr;
611 if (cidx >= card->nr_controlle
612 printk(KERN_ERR "%s: c
613 card->
614 break;
615 }
616 card->nlogcontr++;
617 cinfo = &card->ctrlinfo[cidx];
618 ctrl = &cinfo->capi_ctrl;
619 cinfo->versionlen = _get_slice
620 b1_parse_version(cinfo);
621 printk(KERN_INFO "%s: %s-card
622 card->name,
623 cinfo->version[VER_CARD
624 cinfo->version[VER_DRIV
625 capi_ctr_ready(&cinfo->capi_ct
626 break;
627
628 case RECEIVE_TASK_READY:
629 ApplId = (unsigned) _get_word(
630 MsgLen = _get_slice(&p, card->
631 card->msgbuf[MsgLen] = 0;
632 while ( MsgLen > 0
633 && ( card->msgbuf[Msg
634 || card->msgbuf[Msg
635 card->msgbuf[MsgLen-1]
636 MsgLen--;
637 }
638 printk(KERN_INFO "%s: task %d
639 card->name, Ap
640 break;
641
642 case RECEIVE_DEBUGMSG:
643 MsgLen = _get_slice(&p, card->
644 card->msgbuf[MsgLen] = 0;
645 while ( MsgLen > 0
646 && ( card->msgbuf[Msg
647 || card->msgbuf[Msg
648 card->msgbuf[MsgLen-1]
649 MsgLen--;
650 }
651 printk(KERN_INFO "%s: DEBUG: %
652 break;
653
654 default:
655 printk(KERN_ERR "%s: c4_interr
656 card->name, b1
657 return;
658 }
659 }
660
661 /* -------------------------------------------
662
663 static irqreturn_t c4_handle_interrupt(avmcard
664 {
665 unsigned long flags;
666 u32 status;
667
668 spin_lock_irqsave(&card->lock, flags);
669 status = c4inmeml(card->mbase+DOORBELL
670
671 if (status & DBELL_RESET_HOST) {
672 u_int i;
673 c4outmeml(card->mbase+PCI_OUT_
674 spin_unlock_irqrestore(&card->
675 if (card->nlogcontr == 0)
676 return IRQ_HANDLED;
677 printk(KERN_ERR "%s: unexpecte
678 for (i=0; i < card->nr_control
679 avmctrl_info *cinfo =
680 memset(cinfo->version,
681 spin_lock_irqsave(&car
682 capilib_release(&cinfo
683 spin_unlock_irqrestore
684 capi_ctr_reseted(&cinf
685 }
686 card->nlogcontr = 0;
687 return IRQ_HANDLED;
688 }
689
690 status &= (DBELL_UP_HOST | DBELL_DOWN_
691 if (!status) {
692 spin_unlock_irqrestore(&card->
693 return IRQ_HANDLED;
694 }
695 c4outmeml(card->mbase+DOORBELL, status
696
697 if ((status & DBELL_UP_HOST) != 0) {
698 card->dma->recvlen = c4inmeml(
699 c4outmeml(card->mbase+MBOX_UP_
700 c4_handle_rx(card);
701 card->dma->recvlen = 0;
702 c4outmeml(card->mbase+MBOX_UP_
703 c4outmeml(card->mbase+DOORBELL
704 }
705
706 if ((status & DBELL_DOWN_HOST) != 0) {
707 card->csr &= ~DBELL_DOWN_ARM;
708 c4_dispatch_tx(card);
709 } else if (card->csr & DBELL_DOWN_HOST
710 if (c4inmeml(card->mbase+MBOX_
711 card->csr &= ~DBELL_DO
712 c4_dispatch_tx(card);
713 }
714 }
715 spin_unlock_irqrestore(&card->lock, fl
716 return IRQ_HANDLED;
717 }
718
719 static irqreturn_t c4_interrupt(int interrupt,
720 {
721 avmcard *card = devptr;
722
723 return c4_handle_interrupt(card);
724 }
725
726 /* -------------------------------------------
727
728 static void c4_send_init(avmcard *card)
729 {
730 struct sk_buff *skb;
731 void *p;
732 unsigned long flags;
733
734 skb = alloc_skb(15, GFP_ATOMIC);
735 if (!skb) {
736 printk(KERN_CRIT "%s: no memor
737 card->
738 return;
739 }
740 p = skb->data;
741 _put_byte(&p, 0);
742 _put_byte(&p, 0);
743 _put_byte(&p, SEND_INIT);
744 _put_word(&p, CAPI_MAXAPPL);
745 _put_word(&p, AVM_NCCI_PER_CHANNEL*30)
746 _put_word(&p, card->cardnr - 1);
747 skb_put(skb, (u8 *)p - (u8 *)skb->data
748
749 skb_queue_tail(&card->dma->send_queue,
750 spin_lock_irqsave(&card->lock, flags);
751 c4_dispatch_tx(card);
752 spin_unlock_irqrestore(&card->lock, fl
753 }
754
755 static int queue_sendconfigword(avmcard *card,
756 {
757 struct sk_buff *skb;
758 unsigned long flags;
759 void *p;
760
761 skb = alloc_skb(3+4, GFP_ATOMIC);
762 if (!skb) {
763 printk(KERN_CRIT "%s: no memor
764 card->
765 return -ENOMEM;
766 }
767 p = skb->data;
768 _put_byte(&p, 0);
769 _put_byte(&p, 0);
770 _put_byte(&p, SEND_CONFIG);
771 _put_word(&p, val);
772 skb_put(skb, (u8 *)p - (u8 *)skb->data
773
774 skb_queue_tail(&card->dma->send_queue,
775 spin_lock_irqsave(&card->lock, flags);
776 c4_dispatch_tx(card);
777 spin_unlock_irqrestore(&card->lock, fl
778 return 0;
779 }
780
781 static int queue_sendconfig(avmcard *card, cha
782 {
783 struct sk_buff *skb;
784 unsigned long flags;
785 void *p;
786
787 skb = alloc_skb(3+4, GFP_ATOMIC);
788 if (!skb) {
789 printk(KERN_CRIT "%s: no memor
790 card->
791 return -ENOMEM;
792 }
793 p = skb->data;
794 _put_byte(&p, 0);
795 _put_byte(&p, 0);
796 _put_byte(&p, SEND_CONFIG);
797 _put_byte(&p, cval[0]);
798 _put_byte(&p, cval[1]);
799 _put_byte(&p, cval[2]);
800 _put_byte(&p, cval[3]);
801 skb_put(skb, (u8 *)p - (u8 *)skb->data
802
803 skb_queue_tail(&card->dma->send_queue,
804
805 spin_lock_irqsave(&card->lock, flags);
806 c4_dispatch_tx(card);
807 spin_unlock_irqrestore(&card->lock, fl
808 return 0;
809 }
810
811 static int c4_send_config(avmcard *card, capil
812 {
813 u8 val[4];
814 unsigned char *dp;
815 u_int left;
816 int retval;
817
818 if ((retval = queue_sendconfigword(car
819 return retval;
820 if ((retval = queue_sendconfigword(car
821 return retval;
822
823 dp = config->data;
824 left = config->len;
825 while (left >= sizeof(u32)) {
826 if (config->user) {
827 if (copy_from_user(val
828 return -EFAULT
829 } else {
830 memcpy(val, dp, sizeof
831 }
832 if ((retval = queue_sendconfig
833 return retval;
834 left -= sizeof(val);
835 dp += sizeof(val);
836 }
837 if (left) {
838 memset(val, 0, sizeof(val));
839 if (config->user) {
840 if (copy_from_user(&va
841 return -EFAULT
842 } else {
843 memcpy(&val, dp, left)
844 }
845 if ((retval = queue_sendconfig
846 return retval;
847 }
848
849 return 0;
850 }
851
852 static int c4_load_firmware(struct capi_ctr *c
853 {
854 avmctrl_info *cinfo = (avmctrl_info *)
855 avmcard *card = cinfo->card;
856 int retval;
857
858 if ((retval = c4_load_t4file(card, &da
859 printk(KERN_ERR "%s: failed to
860 card->
861 c4_reset(card);
862 return retval;
863 }
864
865 card->csr = 0;
866 c4outmeml(card->mbase+MBOX_UP_LEN, 0);
867 c4outmeml(card->mbase+MBOX_DOWN_LEN, 0
868 c4outmeml(card->mbase+DOORBELL, DBELL_
869 mdelay(1);
870 c4outmeml(card->mbase+DOORBELL,
871 DBELL_UP_HOST | DBELL_
872
873 c4outmeml(card->mbase+PCI_OUT_INT_MASK
874
875 card->dma->recvlen = 0;
876 c4outmeml(card->mbase+MBOX_UP_ADDR, ca
877 c4outmeml(card->mbase+MBOX_UP_LEN, car
878 c4outmeml(card->mbase+DOORBELL, DBELL_
879
880 if (data->configuration.len > 0 && dat
881 retval = c4_send_config(card,
882 if (retval) {
883 printk(KERN_ERR "%s: f
884 card->
885 c4_reset(card);
886 return retval;
887 }
888 }
889
890 c4_send_init(card);
891
892 return 0;
893 }
894
895
896 static void c4_reset_ctr(struct capi_ctr *ctrl
897 {
898 avmcard *card = ((avmctrl_info *)(ctrl
899 avmctrl_info *cinfo;
900 u_int i;
901 unsigned long flags;
902
903 spin_lock_irqsave(&card->lock, flags);
904
905 c4_reset(card);
906
907 spin_unlock_irqrestore(&card->lock, fl
908
909 for (i=0; i < card->nr_controllers; i+
910 cinfo = &card->ctrlinfo[i];
911 memset(cinfo->version, 0, size
912 capi_ctr_reseted(&cinfo->capi_
913 }
914 card->nlogcontr = 0;
915 }
916
917 static void c4_remove(struct pci_dev *pdev)
918 {
919 avmcard *card = pci_get_drvdata(pdev);
920 avmctrl_info *cinfo;
921 u_int i;
922
923 if (!card)
924 return;
925
926 c4_reset(card);
927
928 for (i=0; i < card->nr_controllers; i+
929 cinfo = &card->ctrlinfo[i];
930 detach_capi_ctr(&cinfo->capi_c
931 }
932
933 free_irq(card->irq, card);
934 iounmap(card->mbase);
935 release_region(card->port, AVMB1_PORTL
936 avmcard_dma_free(card->dma);
937 pci_set_drvdata(pdev, NULL);
938 b1_free_card(card);
939 }
940
941 /* -------------------------------------------
942
943
944 static void c4_register_appl(struct capi_ctr *
945 u16 appl,
946 capi_register_
947 {
948 avmctrl_info *cinfo = (avmctrl_info *)
949 avmcard *card = cinfo->card;
950 struct sk_buff *skb;
951 int want = rp->level3cnt;
952 unsigned long flags;
953 int nconn;
954 void *p;
955
956 if (ctrl->cnr == card->cardnr) {
957
958 if (want > 0) nconn = want;
959 else nconn = ctrl->profile.nbc
960 if (nconn == 0) nconn = ctrl->
961
962 skb = alloc_skb(23, GFP_ATOMIC
963 if (!skb) {
964 printk(KERN_CRIT "%s:
965
966 return;
967 }
968 p = skb->data;
969 _put_byte(&p, 0);
970 _put_byte(&p, 0);
971 _put_byte(&p, SEND_REGISTER);
972 _put_word(&p, appl);
973 _put_word(&p, 1024 * (nconn+1)
974 _put_word(&p, nconn);
975 _put_word(&p, rp->datablkcnt);
976 _put_word(&p, rp->datablklen);
977 skb_put(skb, (u8 *)p - (u8 *)s
978
979 skb_queue_tail(&card->dma->sen
980
981 spin_lock_irqsave(&card->lock,
982 c4_dispatch_tx(card);
983 spin_unlock_irqrestore(&card->
984 }
985 }
986
987 /* -------------------------------------------
988
989 static void c4_release_appl(struct capi_ctr *c
990 {
991 avmctrl_info *cinfo = (avmctrl_info *)
992 avmcard *card = cinfo->card;
993 unsigned long flags;
994 struct sk_buff *skb;
995 void *p;
996
997 spin_lock_irqsave(&card->lock, flags);
998 capilib_release_appl(&cinfo->ncci_head
999 spin_unlock_irqrestore(&card->lock, fl
1000
1001 if (ctrl->cnr == card->cardnr) {
1002 skb = alloc_skb(7, GFP_ATOMIC
1003 if (!skb) {
1004 printk(KERN_CRIT "%s:
1005
1006 return;
1007 }
1008 p = skb->data;
1009 _put_byte(&p, 0);
1010 _put_byte(&p, 0);
1011 _put_byte(&p, SEND_RELEASE);
1012 _put_word(&p, appl);
1013
1014 skb_put(skb, (u8 *)p - (u8 *)
1015 skb_queue_tail(&card->dma->se
1016 spin_lock_irqsave(&card->lock
1017 c4_dispatch_tx(card);
1018 spin_unlock_irqrestore(&card-
1019 }
1020 }
1021
1022 /* ------------------------------------------
1023
1024
1025 static u16 c4_send_message(struct capi_ctr *c
1026 {
1027 avmctrl_info *cinfo = (avmctrl_info *
1028 avmcard *card = cinfo->card;
1029 u16 retval = CAPI_NOERROR;
1030 unsigned long flags;
1031
1032 spin_lock_irqsave(&card->lock, flags)
1033 if (CAPIMSG_CMD(skb->data) == CAPI_DA
1034 retval = capilib_data_b3_req(
1035
1036
1037
1038 }
1039 if (retval == CAPI_NOERROR) {
1040 skb_queue_tail(&card->dma->se
1041 c4_dispatch_tx(card);
1042 }
1043 spin_unlock_irqrestore(&card->lock, f
1044 return retval;
1045 }
1046
1047 /* ------------------------------------------
1048
1049 static char *c4_procinfo(struct capi_ctr *ctr
1050 {
1051 avmctrl_info *cinfo = (avmctrl_info *
1052
1053 if (!cinfo)
1054 return "";
1055 sprintf(cinfo->infobuf, "%s %s 0x%x %
1056 cinfo->cardname[0] ? cinfo->c
1057 cinfo->version[VER_DRIVER] ?
1058 cinfo->card ? cinfo->card->po
1059 cinfo->card ? cinfo->card->ir
1060 cinfo->card ? cinfo->card->me
1061 );
1062 return cinfo->infobuf;
1063 }
1064
1065 static int c4_read_proc(char *page, char **st
1066 int count, int *eof,
1067 {
1068 avmctrl_info *cinfo = (avmctrl_info *
1069 avmcard *card = cinfo->card;
1070 u8 flag;
1071 int len = 0;
1072 char *s;
1073
1074 len += sprintf(page+len, "%-16s %s\n"
1075 len += sprintf(page+len, "%-16s 0x%x\
1076 len += sprintf(page+len, "%-16s %d\n"
1077 len += sprintf(page+len, "%-16s 0x%lx
1078 switch (card->cardtype) {
1079 case avm_b1isa: s = "B1 ISA"; break;
1080 case avm_b1pci: s = "B1 PCI"; break;
1081 case avm_b1pcmcia: s = "B1 PCMCIA"; b
1082 case avm_m1: s = "M1"; break;
1083 case avm_m2: s = "M2"; break;
1084 case avm_t1isa: s = "T1 ISA (HEMA)";
1085 case avm_t1pci: s = "T1 PCI"; break;
1086 case avm_c4: s = "C4"; break;
1087 case avm_c2: s = "C2"; break;
1088 default: s = "???"; break;
1089 }
1090 len += sprintf(page+len, "%-16s %s\n"
1091 if ((s = cinfo->version[VER_DRIVER])
1092 len += sprintf(page+len, "%-16s %s
1093 if ((s = cinfo->version[VER_CARDTYPE]
1094 len += sprintf(page+len, "%-16s %s
1095 if ((s = cinfo->version[VER_SERIAL])
1096 len += sprintf(page+len, "%-16s %s
1097
1098 if (card->cardtype != avm_m1) {
1099 flag = ((u8 *)(ctrl->profile.
1100 if (flag)
1101 len += sprintf(page+l
1102 "protocol",
1103 (flag & 0x01) ? " DSS
1104 (flag & 0x02) ? " CT1
1105 (flag & 0x04) ? " VN3
1106 (flag & 0x08) ? " NI1
1107 (flag & 0x10) ? " AUS
1108 (flag & 0x20) ? " ESS
1109 (flag & 0x40) ? " 1TR
1110 );
1111 }
1112 if (card->cardtype != avm_m1) {
1113 flag = ((u8 *)(ctrl->profile.
1114 if (flag)
1115 len += sprintf(page+l
1116 "linetype",
1117 (flag & 0x01) ? " poi
1118 (flag & 0x02) ? " poi
1119 (flag & 0x08) ? " lea
1120 (flag & 0x04) ? " lea
1121 );
1122 }
1123 len += sprintf(page+len, "%-16s %s\n"
1124
1125 if (off+count >= len)
1126 *eof = 1;
1127 if (len < off)
1128 return 0;
1129 *start = page + off;
1130 return ((count < len-off) ? count : l
1131 }
1132
1133 /* ------------------------------------------
1134
1135 static int c4_add_card(struct capicardparams
1136 int nr_controllers)
1137 {
1138 avmcard *card;
1139 avmctrl_info *cinfo;
1140 int retval;
1141 int i;
1142
1143 card = b1_alloc_card(nr_controllers);
1144 if (!card) {
1145 printk(KERN_WARNING "c4: no m
1146 retval = -ENOMEM;
1147 goto err;
1148 }
1149 card->dma = avmcard_dma_alloc("c4", d
1150 if (!card->dma) {
1151 printk(KERN_WARNING "c4: no m
1152 retval = -ENOMEM;
1153 goto err_free;
1154 }
1155
1156 sprintf(card->name, "c%d-%x", nr_cont
1157 card->port = p->port;
1158 card->irq = p->irq;
1159 card->membase = p->membase;
1160 card->cardtype = (nr_controllers == 4
1161
1162 if (!request_region(card->port, AVMB1
1163 printk(KERN_WARNING "c4: port
1164 card->port, card->port
1165 retval = -EBUSY;
1166 goto err_free_dma;
1167 }
1168
1169 card->mbase = ioremap(card->membase,
1170 if (card->mbase == 0) {
1171 printk(KERN_NOTICE "c4: can't
1172 card->membase);
1173 retval = -EIO;
1174 goto err_release_region;
1175 }
1176
1177 retval = c4_detect(card);
1178 if (retval != 0) {
1179 printk(KERN_NOTICE "c4: NO ca
1180 card->port, retval);
1181 retval = -EIO;
1182 goto err_unmap;
1183 }
1184 c4_reset(card);
1185
1186 retval = request_irq(card->irq, c4_in
1187 if (retval) {
1188 printk(KERN_ERR "c4: unable t
1189 retval = -EBUSY;
1190 goto err_unmap;
1191 }
1192
1193 for (i=0; i < nr_controllers ; i++) {
1194 cinfo = &card->ctrlinfo[i];
1195 cinfo->capi_ctrl.owner = THIS
1196 cinfo->capi_ctrl.driver_name
1197 cinfo->capi_ctrl.driverdata
1198 cinfo->capi_ctrl.register_app
1199 cinfo->capi_ctrl.release_appl
1200 cinfo->capi_ctrl.send_message
1201 cinfo->capi_ctrl.load_firmwar
1202 cinfo->capi_ctrl.reset_ctr
1203 cinfo->capi_ctrl.procinfo
1204 cinfo->capi_ctrl.ctr_read_pro
1205 strcpy(cinfo->capi_ctrl.name,
1206
1207 retval = attach_capi_ctr(&cin
1208 if (retval) {
1209 printk(KERN_ERR "c4:
1210 for (i--; i >= 0; i--
1211 cinfo = &card
1212 detach_capi_c
1213 }
1214 goto err_free_irq;
1215 }
1216 if (i == 0)
1217 card->cardnr = cinfo-
1218 }
1219
1220 printk(KERN_INFO "c4: AVM C%d at i/o
1221 nr_controllers, card->port, ca
1222 card->membase);
1223 pci_set_drvdata(dev, card);
1224 return 0;
1225
1226 err_free_irq:
1227 free_irq(card->irq, card);
1228 err_unmap:
1229 iounmap(card->mbase);
1230 err_release_region:
1231 release_region(card->port, AVMB1_PORT
1232 err_free_dma:
1233 avmcard_dma_free(card->dma);
1234 err_free:
1235 b1_free_card(card);
1236 err:
1237 return retval;
1238 }
1239
1240 /* ------------------------------------------
1241
1242 static int __devinit c4_probe(struct pci_dev
1243 const struct pc
1244 {
1245 int nr = ent->driver_data;
1246 int retval = 0;
1247 struct capicardparams param;
1248
1249 if (pci_enable_device(dev) < 0) {
1250 printk(KERN_ERR "c4: failed t
1251 return -ENODEV;
1252 }
1253 pci_set_master(dev);
1254
1255 param.port = pci_resource_start(dev,
1256 param.irq = dev->irq;
1257 param.membase = pci_resource_start(de
1258
1259 printk(KERN_INFO "c4: PCI BIOS report
1260 nr, param.port, param.irq, par
1261
1262 retval = c4_add_card(¶m, dev, nr)
1263 if (retval != 0) {
1264 printk(KERN_ERR "c4: no AVM-C
1265 nr, param.port, param.
1266 return -ENODEV;
1267 }
1268 return 0;
1269 }
1270
1271 static struct pci_driver c4_pci_driver = {
1272 .name = "c4",
1273 .id_table = c4_pci_tbl,
1274 .probe = c4_probe,
1275 .remove = c4_remove,
1276 };
1277
1278 static struct capi_driver capi_driver_c2 = {
1279 .name = "c2",
1280 .revision = "1.0",
1281 };
1282
1283 static struct capi_driver capi_driver_c4 = {
1284 .name = "c4",
1285 .revision = "1.0",
1286 };
1287
1288 static int __init c4_init(void)
1289 {
1290 char *p;
1291 char rev[32];
1292 int err;
1293
1294 if ((p = strchr(revision, ':')) != 0
1295 strlcpy(rev, p + 2, 32);
1296 if ((p = strchr(rev, '$')) !=
1297 *(p-1) = 0;
1298 } else
1299 strcpy(rev, "1.0");
1300
1301 err = pci_register_driver(&c4_pci_dri
1302 if (!err) {
1303 strlcpy(capi_driver_c2.revisi
1304 register_capi_driver(&capi_dr
1305 strlcpy(capi_driver_c4.revisi
1306 register_capi_driver(&capi_dr
1307 printk(KERN_INFO "c4: revisio
1308 }
1309 return err;
1310 }
1311
1312 static void __exit c4_exit(void)
1313 {
1314 unregister_capi_driver(&capi_driver_c
1315 unregister_capi_driver(&capi_driver_c
1316 pci_unregister_driver(&c4_pci_driver)
1317 }
1318
1319 module_init(c4_init);
1320 module_exit(c4_exit);
1321
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