Merge branch 'topic/audigy-capture-boost' into to-push
[linux-2.6] / drivers / isdn / hardware / avm / t1isa.c
1 /* $Id: t1isa.c,v 1.1.2.3 2004/02/10 01:07:12 keil Exp $
2  * 
3  * Module for AVM T1 HEMA-card.
4  * 
5  * Copyright 1999 by Carsten Paeth <calle@calle.de>
6  * 
7  * This software may be used and distributed according to the terms
8  * of the GNU General Public License, incorporated herein by reference.
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/capi.h>
20 #include <linux/netdevice.h>
21 #include <linux/kernelcapi.h>
22 #include <linux/init.h>
23 #include <linux/pci.h>
24 #include <asm/io.h>
25 #include <linux/isdn/capicmd.h>
26 #include <linux/isdn/capiutil.h>
27 #include <linux/isdn/capilli.h>
28 #include "avmcard.h"
29
30 /* ------------------------------------------------------------- */
31
32 static char *revision = "$Revision: 1.1.2.3 $";
33
34 /* ------------------------------------------------------------- */
35
36 MODULE_DESCRIPTION("CAPI4Linux: Driver for AVM T1 HEMA ISA card");
37 MODULE_AUTHOR("Carsten Paeth");
38 MODULE_LICENSE("GPL");
39
40 /* ------------------------------------------------------------- */
41
42 static int hema_irq_table[16] =
43 {0,
44  0,
45  0,
46  0x80,                          /* irq 3 */
47  0,
48  0x90,                          /* irq 5 */
49  0,
50  0xA0,                          /* irq 7 */
51  0,
52  0xB0,                          /* irq 9 */
53  0xC0,                          /* irq 10 */
54  0xD0,                          /* irq 11 */
55  0xE0,                          /* irq 12 */
56  0,
57  0,
58  0xF0,                          /* irq 15 */
59 };
60
61 static int t1_detectandinit(unsigned int base, unsigned irq, int cardnr)
62 {
63         unsigned char cregs[8];
64         unsigned char reverse_cardnr;
65         unsigned char dummy;
66         int i;
67
68         reverse_cardnr =   ((cardnr & 0x01) << 3) | ((cardnr & 0x02) << 1)
69                          | ((cardnr & 0x04) >> 1) | ((cardnr & 0x08) >> 3);
70         cregs[0] = (HEMA_VERSION_ID << 4) | (reverse_cardnr & 0xf);
71         cregs[1] = 0x00; /* fast & slow link connected to CON1 */
72         cregs[2] = 0x05; /* fast link 20MBit, slow link 20 MBit */
73         cregs[3] = 0;
74         cregs[4] = 0x11; /* zero wait state */
75         cregs[5] = hema_irq_table[irq & 0xf];
76         cregs[6] = 0;
77         cregs[7] = 0;
78
79         /*
80          * no one else should use the ISA bus in this moment,
81          * but no function there to prevent this :-(
82          * save_flags(flags); cli();
83          */
84
85         /* board reset */
86         t1outp(base, T1_RESETBOARD, 0xf);
87         mdelay(100);
88         dummy = t1inp(base, T1_FASTLINK+T1_OUTSTAT); /* first read */
89
90         /* write config */
91         dummy = (base >> 4) & 0xff;
92         for (i=1;i<=0xf;i++) t1outp(base, i, dummy);
93         t1outp(base, HEMA_PAL_ID & 0xf, dummy);
94         t1outp(base, HEMA_PAL_ID >> 4, cregs[0]);
95         for(i=1;i<7;i++) t1outp(base, 0, cregs[i]);
96         t1outp(base, ((base >> 4)) & 0x3, cregs[7]);
97         /* restore_flags(flags); */
98
99         mdelay(100);
100         t1outp(base, T1_FASTLINK+T1_RESETLINK, 0);
101         t1outp(base, T1_SLOWLINK+T1_RESETLINK, 0);
102         mdelay(10);
103         t1outp(base, T1_FASTLINK+T1_RESETLINK, 1);
104         t1outp(base, T1_SLOWLINK+T1_RESETLINK, 1);
105         mdelay(100);
106         t1outp(base, T1_FASTLINK+T1_RESETLINK, 0);
107         t1outp(base, T1_SLOWLINK+T1_RESETLINK, 0);
108         mdelay(10);
109         t1outp(base, T1_FASTLINK+T1_ANALYSE, 0);
110         mdelay(5);
111         t1outp(base, T1_SLOWLINK+T1_ANALYSE, 0);
112
113         if (t1inp(base, T1_FASTLINK+T1_OUTSTAT) != 0x1) /* tx empty */
114                 return 1;
115         if (t1inp(base, T1_FASTLINK+T1_INSTAT) != 0x0) /* rx empty */
116                 return 2;
117         if (t1inp(base, T1_FASTLINK+T1_IRQENABLE) != 0x0)
118                 return 3;
119         if ((t1inp(base, T1_FASTLINK+T1_FIFOSTAT) & 0xf0) != 0x70)
120                 return 4;
121         if ((t1inp(base, T1_FASTLINK+T1_IRQMASTER) & 0x0e) != 0)
122                 return 5;
123         if ((t1inp(base, T1_FASTLINK+T1_IDENT) & 0x7d) != 1)
124                 return 6;
125         if (t1inp(base, T1_SLOWLINK+T1_OUTSTAT) != 0x1) /* tx empty */
126                 return 7;
127         if ((t1inp(base, T1_SLOWLINK+T1_IRQMASTER) & 0x0e) != 0)
128                 return 8;
129         if ((t1inp(base, T1_SLOWLINK+T1_IDENT) & 0x7d) != 0)
130                 return 9;
131         return 0;
132 }
133
134 static irqreturn_t t1isa_interrupt(int interrupt, void *devptr)
135 {
136         avmcard *card = devptr;
137         avmctrl_info *cinfo = &card->ctrlinfo[0];
138         struct capi_ctr *ctrl = &cinfo->capi_ctrl;
139         unsigned char b1cmd;
140         struct sk_buff *skb;
141
142         unsigned ApplId;
143         unsigned MsgLen;
144         unsigned DataB3Len;
145         unsigned NCCI;
146         unsigned WindowSize;
147         unsigned long flags;
148
149         spin_lock_irqsave(&card->lock, flags);
150
151         while (b1_rx_full(card->port)) {
152
153                 b1cmd = b1_get_byte(card->port);
154
155                 switch (b1cmd) {
156
157                 case RECEIVE_DATA_B3_IND:
158
159                         ApplId = (unsigned) b1_get_word(card->port);
160                         MsgLen = t1_get_slice(card->port, card->msgbuf);
161                         DataB3Len = t1_get_slice(card->port, card->databuf);
162                         spin_unlock_irqrestore(&card->lock, flags);
163
164                         if (MsgLen < 30) { /* not CAPI 64Bit */
165                                 memset(card->msgbuf+MsgLen, 0, 30-MsgLen);
166                                 MsgLen = 30;
167                                 CAPIMSG_SETLEN(card->msgbuf, 30);
168                         }
169                         if (!(skb = alloc_skb(DataB3Len+MsgLen, GFP_ATOMIC))) {
170                                 printk(KERN_ERR "%s: incoming packet dropped\n",
171                                         card->name);
172                         } else {
173                                 memcpy(skb_put(skb, MsgLen), card->msgbuf, MsgLen);
174                                 memcpy(skb_put(skb, DataB3Len), card->databuf, DataB3Len);
175                                 capi_ctr_handle_message(ctrl, ApplId, skb);
176                         }
177                         break;
178
179                 case RECEIVE_MESSAGE:
180
181                         ApplId = (unsigned) b1_get_word(card->port);
182                         MsgLen = t1_get_slice(card->port, card->msgbuf);
183                         if (!(skb = alloc_skb(MsgLen, GFP_ATOMIC))) {
184                                 spin_unlock_irqrestore(&card->lock, flags);
185                                 printk(KERN_ERR "%s: incoming packet dropped\n",
186                                                 card->name);
187                         } else {
188                                 memcpy(skb_put(skb, MsgLen), card->msgbuf, MsgLen);
189                                 if (CAPIMSG_CMD(skb->data) == CAPI_DATA_B3)
190                                         capilib_data_b3_conf(&cinfo->ncci_head, ApplId,
191                                                              CAPIMSG_NCCI(skb->data),
192                                                              CAPIMSG_MSGID(skb->data));
193                                 spin_unlock_irqrestore(&card->lock, flags);
194                                 capi_ctr_handle_message(ctrl, ApplId, skb);
195                         }
196                         break;
197
198                 case RECEIVE_NEW_NCCI:
199
200                         ApplId = b1_get_word(card->port);
201                         NCCI = b1_get_word(card->port);
202                         WindowSize = b1_get_word(card->port);
203                         capilib_new_ncci(&cinfo->ncci_head, ApplId, NCCI, WindowSize);
204                         spin_unlock_irqrestore(&card->lock, flags);
205                         break;
206
207                 case RECEIVE_FREE_NCCI:
208
209                         ApplId = b1_get_word(card->port);
210                         NCCI = b1_get_word(card->port);
211                         if (NCCI != 0xffffffff)
212                                 capilib_free_ncci(&cinfo->ncci_head, ApplId, NCCI);
213                         spin_unlock_irqrestore(&card->lock, flags);
214                         break;
215
216                 case RECEIVE_START:
217                         b1_put_byte(card->port, SEND_POLLACK);
218                         spin_unlock_irqrestore(&card->lock, flags);
219                         capi_ctr_resume_output(ctrl);
220                         break;
221
222                 case RECEIVE_STOP:
223                         spin_unlock_irqrestore(&card->lock, flags);
224                         capi_ctr_suspend_output(ctrl);
225                         break;
226
227                 case RECEIVE_INIT:
228
229                         cinfo->versionlen = t1_get_slice(card->port, cinfo->versionbuf);
230                         spin_unlock_irqrestore(&card->lock, flags);
231                         b1_parse_version(cinfo);
232                         printk(KERN_INFO "%s: %s-card (%s) now active\n",
233                                card->name,
234                                cinfo->version[VER_CARDTYPE],
235                                cinfo->version[VER_DRIVER]);
236                         capi_ctr_ready(ctrl);
237                         break;
238
239                 case RECEIVE_TASK_READY:
240                         ApplId = (unsigned) b1_get_word(card->port);
241                         MsgLen = t1_get_slice(card->port, card->msgbuf);
242                         spin_unlock_irqrestore(&card->lock, flags);
243                         card->msgbuf[MsgLen] = 0;
244                         while (    MsgLen > 0
245                                && (   card->msgbuf[MsgLen-1] == '\n'
246                                    || card->msgbuf[MsgLen-1] == '\r')) {
247                                 card->msgbuf[MsgLen-1] = 0;
248                                 MsgLen--;
249                         }
250                         printk(KERN_INFO "%s: task %d \"%s\" ready.\n",
251                                         card->name, ApplId, card->msgbuf);
252                         break;
253
254                 case RECEIVE_DEBUGMSG:
255                         MsgLen = t1_get_slice(card->port, card->msgbuf);
256                         spin_unlock_irqrestore(&card->lock, flags);
257                         card->msgbuf[MsgLen] = 0;
258                         while (    MsgLen > 0
259                                && (   card->msgbuf[MsgLen-1] == '\n'
260                                    || card->msgbuf[MsgLen-1] == '\r')) {
261                                 card->msgbuf[MsgLen-1] = 0;
262                                 MsgLen--;
263                         }
264                         printk(KERN_INFO "%s: DEBUG: %s\n", card->name, card->msgbuf);
265                         break;
266
267
268                 case 0xff:
269                         spin_unlock_irqrestore(&card->lock, flags);
270                         printk(KERN_ERR "%s: card reseted ?\n", card->name);
271                         return IRQ_HANDLED;
272                 default:
273                         spin_unlock_irqrestore(&card->lock, flags);
274                         printk(KERN_ERR "%s: b1_interrupt: 0x%x ???\n",
275                                         card->name, b1cmd);
276                         return IRQ_NONE;
277                 }
278         }
279         return IRQ_HANDLED;
280 }
281
282 /* ------------------------------------------------------------- */
283
284 static int t1isa_load_firmware(struct capi_ctr *ctrl, capiloaddata *data)
285 {
286         avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
287         avmcard *card = cinfo->card;
288         unsigned int port = card->port;
289         unsigned long flags;
290         int retval;
291
292         t1_disable_irq(port);
293         b1_reset(port);
294
295         if ((retval = b1_load_t4file(card, &data->firmware))) {
296                 b1_reset(port);
297                 printk(KERN_ERR "%s: failed to load t4file!!\n",
298                                         card->name);
299                 return retval;
300         }
301
302         if (data->configuration.len > 0 && data->configuration.data) {
303                 if ((retval = b1_load_config(card, &data->configuration))) {
304                         b1_reset(port);
305                         printk(KERN_ERR "%s: failed to load config!!\n",
306                                         card->name);
307                         return retval;
308                 }
309         }
310
311         if (!b1_loaded(card)) {
312                 printk(KERN_ERR "%s: failed to load t4file.\n", card->name);
313                 return -EIO;
314         }
315
316         spin_lock_irqsave(&card->lock, flags);
317         b1_setinterrupt(port, card->irq, card->cardtype);
318         b1_put_byte(port, SEND_INIT);
319         b1_put_word(port, CAPI_MAXAPPL);
320         b1_put_word(port, AVM_NCCI_PER_CHANNEL*30);
321         b1_put_word(port, ctrl->cnr - 1);
322         spin_unlock_irqrestore(&card->lock, flags);
323
324         return 0;
325 }
326
327 static void t1isa_reset_ctr(struct capi_ctr *ctrl)
328 {
329         avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
330         avmcard *card = cinfo->card;
331         unsigned int port = card->port;
332         unsigned long flags;
333
334         t1_disable_irq(port);
335         b1_reset(port);
336         b1_reset(port);
337
338         memset(cinfo->version, 0, sizeof(cinfo->version));
339         spin_lock_irqsave(&card->lock, flags);
340         capilib_release(&cinfo->ncci_head);
341         spin_unlock_irqrestore(&card->lock, flags);
342         capi_ctr_reseted(ctrl);
343 }
344
345 static void t1isa_remove(struct pci_dev *pdev)
346 {
347         avmctrl_info *cinfo = pci_get_drvdata(pdev);
348         avmcard *card;
349         
350         if (!cinfo)
351                 return;
352
353         card = cinfo->card;
354
355         t1_disable_irq(card->port);
356         b1_reset(card->port);
357         b1_reset(card->port);
358         t1_reset(card->port);
359
360         detach_capi_ctr(&cinfo->capi_ctrl);
361         free_irq(card->irq, card);
362         release_region(card->port, AVMB1_PORTLEN);
363         b1_free_card(card);
364 }
365
366 /* ------------------------------------------------------------- */
367
368 static u16 t1isa_send_message(struct capi_ctr *ctrl, struct sk_buff *skb);
369 static char *t1isa_procinfo(struct capi_ctr *ctrl);
370
371 static int t1isa_probe(struct pci_dev *pdev, int cardnr)
372 {
373         avmctrl_info *cinfo;
374         avmcard *card;
375         int retval;
376
377         card = b1_alloc_card(1);
378         if (!card) {
379                 printk(KERN_WARNING "t1isa: no memory.\n");
380                 retval = -ENOMEM;
381                 goto err;
382         }
383
384         cinfo = card->ctrlinfo;
385         card->port = pci_resource_start(pdev, 0);
386         card->irq = pdev->irq;
387         card->cardtype = avm_t1isa;
388         card->cardnr = cardnr;
389         sprintf(card->name, "t1isa-%x", card->port);
390
391         if (!(((card->port & 0x7) == 0) && ((card->port & 0x30) != 0x30))) {
392                 printk(KERN_WARNING "t1isa: invalid port 0x%x.\n", card->port);
393                 retval = -EINVAL;
394                 goto err_free;
395         }
396         if (hema_irq_table[card->irq & 0xf] == 0) {
397                 printk(KERN_WARNING "t1isa: irq %d not valid.\n", card->irq);
398                 retval = -EINVAL;
399                 goto err_free;
400         }
401         if (!request_region(card->port, AVMB1_PORTLEN, card->name)) {
402                 printk(KERN_INFO "t1isa: ports 0x%03x-0x%03x in use.\n",
403                        card->port, card->port + AVMB1_PORTLEN);
404                 retval = -EBUSY;
405                 goto err_free;
406         }
407         retval = request_irq(card->irq, t1isa_interrupt, 0, card->name, card);
408         if (retval) {
409                 printk(KERN_INFO "t1isa: unable to get IRQ %d.\n", card->irq);
410                 retval = -EBUSY;
411                 goto err_release_region;
412         }
413
414         if ((retval = t1_detectandinit(card->port, card->irq, card->cardnr)) != 0) {
415                 printk(KERN_INFO "t1isa: NO card at 0x%x (%d)\n",
416                        card->port, retval);
417                 retval = -ENODEV;
418                 goto err_free_irq;
419         }
420         t1_disable_irq(card->port);
421         b1_reset(card->port);
422
423         cinfo->capi_ctrl.owner = THIS_MODULE;
424         cinfo->capi_ctrl.driver_name   = "t1isa";
425         cinfo->capi_ctrl.driverdata    = cinfo;
426         cinfo->capi_ctrl.register_appl = b1_register_appl;
427         cinfo->capi_ctrl.release_appl  = b1_release_appl;
428         cinfo->capi_ctrl.send_message  = t1isa_send_message;
429         cinfo->capi_ctrl.load_firmware = t1isa_load_firmware;
430         cinfo->capi_ctrl.reset_ctr     = t1isa_reset_ctr;
431         cinfo->capi_ctrl.procinfo      = t1isa_procinfo;
432         cinfo->capi_ctrl.ctr_read_proc = b1ctl_read_proc;
433         strcpy(cinfo->capi_ctrl.name, card->name);
434
435         retval = attach_capi_ctr(&cinfo->capi_ctrl);
436         if (retval) {
437                 printk(KERN_INFO "t1isa: attach controller failed.\n");
438                 goto err_free_irq;
439         }
440
441         printk(KERN_INFO "t1isa: AVM T1 ISA at i/o %#x, irq %d, card %d\n",
442                card->port, card->irq, card->cardnr);
443
444         pci_set_drvdata(pdev, cinfo);
445         return 0;
446
447  err_free_irq:
448         free_irq(card->irq, card);
449  err_release_region:
450         release_region(card->port, AVMB1_PORTLEN);
451  err_free:
452         b1_free_card(card);
453  err:
454         return retval;
455 }
456
457 static u16 t1isa_send_message(struct capi_ctr *ctrl, struct sk_buff *skb)
458 {
459         avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
460         avmcard *card = cinfo->card;
461         unsigned int port = card->port;
462         unsigned long flags;
463         u16 len = CAPIMSG_LEN(skb->data);
464         u8 cmd = CAPIMSG_COMMAND(skb->data);
465         u8 subcmd = CAPIMSG_SUBCOMMAND(skb->data);
466         u16 dlen, retval;
467
468         spin_lock_irqsave(&card->lock, flags);
469         if (CAPICMD(cmd, subcmd) == CAPI_DATA_B3_REQ) {
470                 retval = capilib_data_b3_req(&cinfo->ncci_head,
471                                              CAPIMSG_APPID(skb->data),
472                                              CAPIMSG_NCCI(skb->data),
473                                              CAPIMSG_MSGID(skb->data));
474                 if (retval != CAPI_NOERROR) {
475                         spin_unlock_irqrestore(&card->lock, flags);
476                         return retval;
477                 }
478                 dlen = CAPIMSG_DATALEN(skb->data);
479
480                 b1_put_byte(port, SEND_DATA_B3_REQ);
481                 t1_put_slice(port, skb->data, len);
482                 t1_put_slice(port, skb->data + len, dlen);
483         } else {
484                 b1_put_byte(port, SEND_MESSAGE);
485                 t1_put_slice(port, skb->data, len);
486         }
487         spin_unlock_irqrestore(&card->lock, flags);
488         dev_kfree_skb_any(skb);
489         return CAPI_NOERROR;
490 }
491 /* ------------------------------------------------------------- */
492
493 static char *t1isa_procinfo(struct capi_ctr *ctrl)
494 {
495         avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
496
497         if (!cinfo)
498                 return "";
499         sprintf(cinfo->infobuf, "%s %s 0x%x %d %d",
500                 cinfo->cardname[0] ? cinfo->cardname : "-",
501                 cinfo->version[VER_DRIVER] ? cinfo->version[VER_DRIVER] : "-",
502                 cinfo->card ? cinfo->card->port : 0x0,
503                 cinfo->card ? cinfo->card->irq : 0,
504                 cinfo->card ? cinfo->card->cardnr : 0
505                 );
506         return cinfo->infobuf;
507 }
508
509
510 /* ------------------------------------------------------------- */
511
512 #define MAX_CARDS 4
513 static struct pci_dev isa_dev[MAX_CARDS];
514 static int io[MAX_CARDS];
515 static int irq[MAX_CARDS];
516 static int cardnr[MAX_CARDS];
517
518 module_param_array(io, int, NULL, 0);
519 module_param_array(irq, int, NULL, 0);
520 module_param_array(cardnr, int, NULL, 0);
521 MODULE_PARM_DESC(io, "I/O base address(es)");
522 MODULE_PARM_DESC(irq, "IRQ number(s) (assigned)");
523 MODULE_PARM_DESC(cardnr, "Card number(s) (as jumpered)");
524
525 static int t1isa_add_card(struct capi_driver *driver, capicardparams *data)
526 {
527         int i;
528
529         for (i = 0; i < MAX_CARDS; i++) {
530                 if (isa_dev[i].resource[0].start)
531                         continue;
532
533                 isa_dev[i].resource[0].start = data->port;
534                 isa_dev[i].irq = data->irq;
535
536                 if (t1isa_probe(&isa_dev[i], data->cardnr) == 0)
537                         return 0;
538         }
539         return -ENODEV;
540 }
541
542 static struct capi_driver capi_driver_t1isa = {
543         .name           = "t1isa",
544         .revision       = "1.0",
545         .add_card       = t1isa_add_card,
546 };
547
548 static int __init t1isa_init(void)
549 {
550         char rev[32];
551         char *p;
552         int i;
553
554         if ((p = strchr(revision, ':')) != NULL && p[1]) {
555                 strlcpy(rev, p + 2, 32);
556                 if ((p = strchr(rev, '$')) != NULL && p > rev)
557                    *(p-1) = 0;
558         } else
559                 strcpy(rev, "1.0");
560
561         for (i = 0; i < MAX_CARDS; i++) {
562                 if (!io[i])
563                         break;
564
565                 isa_dev[i].resource[0].start = io[i];
566                 isa_dev[i].irq = irq[i];
567
568                 if (t1isa_probe(&isa_dev[i], cardnr[i]) != 0)
569                         return -ENODEV;
570         }
571
572         strlcpy(capi_driver_t1isa.revision, rev, 32);
573         register_capi_driver(&capi_driver_t1isa);
574         printk(KERN_INFO "t1isa: revision %s\n", rev);
575
576         return 0;
577 }
578
579 static void __exit t1isa_exit(void)
580 {
581         int i;
582
583         unregister_capi_driver(&capi_driver_t1isa);
584         for (i = 0; i < MAX_CARDS; i++) {
585                 if (!io[i])
586                         break;
587
588                 t1isa_remove(&isa_dev[i]);
589         }
590 }
591
592 module_init(t1isa_init);
593 module_exit(t1isa_exit);