1 /* $Id: t1isa.c,v 1.1.2.3 2004/02/10 01:07:12 keil Exp $
3 * Module for AVM T1 HEMA-card.
5 * Copyright 1999 by Carsten Paeth <calle@calle.de>
7 * This software may be used and distributed according to the terms
8 * of the GNU General Public License, incorporated herein by reference.
12 #include <linux/module.h>
13 #include <linux/kernel.h>
14 #include <linux/skbuff.h>
15 #include <linux/delay.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>
25 #include <linux/isdn/capicmd.h>
26 #include <linux/isdn/capiutil.h>
27 #include <linux/isdn/capilli.h>
30 /* ------------------------------------------------------------- */
32 static char *revision = "$Revision: 1.1.2.3 $";
34 /* ------------------------------------------------------------- */
36 MODULE_DESCRIPTION("CAPI4Linux: Driver for AVM T1 HEMA ISA card");
37 MODULE_AUTHOR("Carsten Paeth");
38 MODULE_LICENSE("GPL");
40 /* ------------------------------------------------------------- */
42 static int hema_irq_table[16] =
61 static int t1_detectandinit(unsigned int base, unsigned irq, int cardnr)
63 unsigned char cregs[8];
64 unsigned char reverse_cardnr;
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 */
74 cregs[4] = 0x11; /* zero wait state */
75 cregs[5] = hema_irq_table[irq & 0xf];
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();
86 t1outp(base, T1_RESETBOARD, 0xf);
88 dummy = t1inp(base, T1_FASTLINK+T1_OUTSTAT); /* first read */
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); */
100 t1outp(base, T1_FASTLINK+T1_RESETLINK, 0);
101 t1outp(base, T1_SLOWLINK+T1_RESETLINK, 0);
103 t1outp(base, T1_FASTLINK+T1_RESETLINK, 1);
104 t1outp(base, T1_SLOWLINK+T1_RESETLINK, 1);
106 t1outp(base, T1_FASTLINK+T1_RESETLINK, 0);
107 t1outp(base, T1_SLOWLINK+T1_RESETLINK, 0);
109 t1outp(base, T1_FASTLINK+T1_ANALYSE, 0);
111 t1outp(base, T1_SLOWLINK+T1_ANALYSE, 0);
113 if (t1inp(base, T1_FASTLINK+T1_OUTSTAT) != 0x1) /* tx empty */
115 if (t1inp(base, T1_FASTLINK+T1_INSTAT) != 0x0) /* rx empty */
117 if (t1inp(base, T1_FASTLINK+T1_IRQENABLE) != 0x0)
119 if ((t1inp(base, T1_FASTLINK+T1_FIFOSTAT) & 0xf0) != 0x70)
121 if ((t1inp(base, T1_FASTLINK+T1_IRQMASTER) & 0x0e) != 0)
123 if ((t1inp(base, T1_FASTLINK+T1_IDENT) & 0x7d) != 1)
125 if (t1inp(base, T1_SLOWLINK+T1_OUTSTAT) != 0x1) /* tx empty */
127 if ((t1inp(base, T1_SLOWLINK+T1_IRQMASTER) & 0x0e) != 0)
129 if ((t1inp(base, T1_SLOWLINK+T1_IDENT) & 0x7d) != 0)
134 static irqreturn_t t1isa_interrupt(int interrupt, void *devptr, struct pt_regs *regs)
136 avmcard *card = devptr;
137 avmctrl_info *cinfo = &card->ctrlinfo[0];
138 struct capi_ctr *ctrl = &cinfo->capi_ctrl;
149 spin_lock_irqsave(&card->lock, flags);
151 while (b1_rx_full(card->port)) {
153 b1cmd = b1_get_byte(card->port);
157 case RECEIVE_DATA_B3_IND:
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);
164 if (MsgLen < 30) { /* not CAPI 64Bit */
165 memset(card->msgbuf+MsgLen, 0, 30-MsgLen);
167 CAPIMSG_SETLEN(card->msgbuf, 30);
169 if (!(skb = alloc_skb(DataB3Len+MsgLen, GFP_ATOMIC))) {
170 printk(KERN_ERR "%s: incoming packet dropped\n",
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);
179 case RECEIVE_MESSAGE:
181 ApplId = (unsigned) b1_get_word(card->port);
182 MsgLen = t1_get_slice(card->port, card->msgbuf);
183 spin_unlock_irqrestore(&card->lock, flags);
184 if (!(skb = alloc_skb(MsgLen, GFP_ATOMIC))) {
185 printk(KERN_ERR "%s: incoming packet dropped\n",
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));
194 capi_ctr_handle_message(ctrl, ApplId, skb);
198 case RECEIVE_NEW_NCCI:
200 ApplId = b1_get_word(card->port);
201 NCCI = b1_get_word(card->port);
202 WindowSize = b1_get_word(card->port);
203 spin_unlock_irqrestore(&card->lock, flags);
205 capilib_new_ncci(&cinfo->ncci_head, ApplId, NCCI, WindowSize);
209 case RECEIVE_FREE_NCCI:
211 ApplId = b1_get_word(card->port);
212 NCCI = b1_get_word(card->port);
213 spin_unlock_irqrestore(&card->lock, flags);
215 if (NCCI != 0xffffffff)
216 capilib_free_ncci(&cinfo->ncci_head, ApplId, NCCI);
221 b1_put_byte(card->port, SEND_POLLACK);
222 spin_unlock_irqrestore(&card->lock, flags);
223 capi_ctr_resume_output(ctrl);
227 spin_unlock_irqrestore(&card->lock, flags);
228 capi_ctr_suspend_output(ctrl);
233 cinfo->versionlen = t1_get_slice(card->port, cinfo->versionbuf);
234 spin_unlock_irqrestore(&card->lock, flags);
235 b1_parse_version(cinfo);
236 printk(KERN_INFO "%s: %s-card (%s) now active\n",
238 cinfo->version[VER_CARDTYPE],
239 cinfo->version[VER_DRIVER]);
240 capi_ctr_ready(ctrl);
243 case RECEIVE_TASK_READY:
244 ApplId = (unsigned) b1_get_word(card->port);
245 MsgLen = t1_get_slice(card->port, card->msgbuf);
246 spin_unlock_irqrestore(&card->lock, flags);
247 card->msgbuf[MsgLen] = 0;
249 && ( card->msgbuf[MsgLen-1] == '\n'
250 || card->msgbuf[MsgLen-1] == '\r')) {
251 card->msgbuf[MsgLen-1] = 0;
254 printk(KERN_INFO "%s: task %d \"%s\" ready.\n",
255 card->name, ApplId, card->msgbuf);
258 case RECEIVE_DEBUGMSG:
259 MsgLen = t1_get_slice(card->port, card->msgbuf);
260 spin_unlock_irqrestore(&card->lock, flags);
261 card->msgbuf[MsgLen] = 0;
263 && ( card->msgbuf[MsgLen-1] == '\n'
264 || card->msgbuf[MsgLen-1] == '\r')) {
265 card->msgbuf[MsgLen-1] = 0;
268 printk(KERN_INFO "%s: DEBUG: %s\n", card->name, card->msgbuf);
273 spin_unlock_irqrestore(&card->lock, flags);
274 printk(KERN_ERR "%s: card reseted ?\n", card->name);
277 spin_unlock_irqrestore(&card->lock, flags);
278 printk(KERN_ERR "%s: b1_interrupt: 0x%x ???\n",
286 /* ------------------------------------------------------------- */
288 static int t1isa_load_firmware(struct capi_ctr *ctrl, capiloaddata *data)
290 avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
291 avmcard *card = cinfo->card;
292 unsigned int port = card->port;
296 t1_disable_irq(port);
299 if ((retval = b1_load_t4file(card, &data->firmware))) {
301 printk(KERN_ERR "%s: failed to load t4file!!\n",
306 if (data->configuration.len > 0 && data->configuration.data) {
307 if ((retval = b1_load_config(card, &data->configuration))) {
309 printk(KERN_ERR "%s: failed to load config!!\n",
315 if (!b1_loaded(card)) {
316 printk(KERN_ERR "%s: failed to load t4file.\n", card->name);
320 spin_lock_irqsave(&card->lock, flags);
321 b1_setinterrupt(port, card->irq, card->cardtype);
322 b1_put_byte(port, SEND_INIT);
323 b1_put_word(port, CAPI_MAXAPPL);
324 b1_put_word(port, AVM_NCCI_PER_CHANNEL*30);
325 b1_put_word(port, ctrl->cnr - 1);
326 spin_unlock_irqrestore(&card->lock, flags);
331 static void t1isa_reset_ctr(struct capi_ctr *ctrl)
333 avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
334 avmcard *card = cinfo->card;
335 unsigned int port = card->port;
337 t1_disable_irq(port);
341 memset(cinfo->version, 0, sizeof(cinfo->version));
342 capilib_release(&cinfo->ncci_head);
343 capi_ctr_reseted(ctrl);
346 static void t1isa_remove(struct pci_dev *pdev)
348 avmctrl_info *cinfo = pci_get_drvdata(pdev);
356 t1_disable_irq(card->port);
357 b1_reset(card->port);
358 b1_reset(card->port);
359 t1_reset(card->port);
361 detach_capi_ctr(&cinfo->capi_ctrl);
362 free_irq(card->irq, card);
363 release_region(card->port, AVMB1_PORTLEN);
367 /* ------------------------------------------------------------- */
369 static u16 t1isa_send_message(struct capi_ctr *ctrl, struct sk_buff *skb);
370 static char *t1isa_procinfo(struct capi_ctr *ctrl);
372 static int t1isa_probe(struct pci_dev *pdev, int cardnr)
378 card = b1_alloc_card(1);
380 printk(KERN_WARNING "t1isa: no memory.\n");
385 cinfo = card->ctrlinfo;
386 card->port = pci_resource_start(pdev, 0);
387 card->irq = pdev->irq;
388 card->cardtype = avm_t1isa;
389 card->cardnr = cardnr;
390 sprintf(card->name, "t1isa-%x", card->port);
392 if (!(((card->port & 0x7) == 0) && ((card->port & 0x30) != 0x30))) {
393 printk(KERN_WARNING "t1isa: invalid port 0x%x.\n", card->port);
397 if (hema_irq_table[card->irq & 0xf] == 0) {
398 printk(KERN_WARNING "t1isa: irq %d not valid.\n", card->irq);
402 if (!request_region(card->port, AVMB1_PORTLEN, card->name)) {
403 printk(KERN_INFO "t1isa: ports 0x%03x-0x%03x in use.\n",
404 card->port, card->port + AVMB1_PORTLEN);
408 retval = request_irq(card->irq, t1isa_interrupt, 0, card->name, card);
410 printk(KERN_INFO "t1isa: unable to get IRQ %d.\n", card->irq);
412 goto err_release_region;
415 if ((retval = t1_detectandinit(card->port, card->irq, card->cardnr)) != 0) {
416 printk(KERN_INFO "t1isa: NO card at 0x%x (%d)\n",
421 t1_disable_irq(card->port);
422 b1_reset(card->port);
424 cinfo->capi_ctrl.owner = THIS_MODULE;
425 cinfo->capi_ctrl.driver_name = "t1isa";
426 cinfo->capi_ctrl.driverdata = cinfo;
427 cinfo->capi_ctrl.register_appl = b1_register_appl;
428 cinfo->capi_ctrl.release_appl = b1_release_appl;
429 cinfo->capi_ctrl.send_message = t1isa_send_message;
430 cinfo->capi_ctrl.load_firmware = t1isa_load_firmware;
431 cinfo->capi_ctrl.reset_ctr = t1isa_reset_ctr;
432 cinfo->capi_ctrl.procinfo = t1isa_procinfo;
433 cinfo->capi_ctrl.ctr_read_proc = b1ctl_read_proc;
434 strcpy(cinfo->capi_ctrl.name, card->name);
436 retval = attach_capi_ctr(&cinfo->capi_ctrl);
438 printk(KERN_INFO "t1isa: attach controller failed.\n");
442 printk(KERN_INFO "t1isa: AVM T1 ISA at i/o %#x, irq %d, card %d\n",
443 card->port, card->irq, card->cardnr);
445 pci_set_drvdata(pdev, cinfo);
449 free_irq(card->irq, card);
451 release_region(card->port, AVMB1_PORTLEN);
458 static u16 t1isa_send_message(struct capi_ctr *ctrl, struct sk_buff *skb)
460 avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
461 avmcard *card = cinfo->card;
462 unsigned int port = card->port;
464 u16 len = CAPIMSG_LEN(skb->data);
465 u8 cmd = CAPIMSG_COMMAND(skb->data);
466 u8 subcmd = CAPIMSG_SUBCOMMAND(skb->data);
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)
477 dlen = CAPIMSG_DATALEN(skb->data);
479 spin_lock_irqsave(&card->lock, flags);
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 spin_unlock_irqrestore(&card->lock, flags);
486 spin_lock_irqsave(&card->lock, flags);
487 b1_put_byte(port, SEND_MESSAGE);
488 t1_put_slice(port, skb->data, len);
489 spin_unlock_irqrestore(&card->lock, flags);
492 dev_kfree_skb_any(skb);
495 /* ------------------------------------------------------------- */
497 static char *t1isa_procinfo(struct capi_ctr *ctrl)
499 avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
503 sprintf(cinfo->infobuf, "%s %s 0x%x %d %d",
504 cinfo->cardname[0] ? cinfo->cardname : "-",
505 cinfo->version[VER_DRIVER] ? cinfo->version[VER_DRIVER] : "-",
506 cinfo->card ? cinfo->card->port : 0x0,
507 cinfo->card ? cinfo->card->irq : 0,
508 cinfo->card ? cinfo->card->cardnr : 0
510 return cinfo->infobuf;
514 /* ------------------------------------------------------------- */
517 static struct pci_dev isa_dev[MAX_CARDS];
518 static int io[MAX_CARDS];
519 static int irq[MAX_CARDS];
520 static int cardnr[MAX_CARDS];
522 module_param_array(io, int, NULL, 0);
523 module_param_array(irq, int, NULL, 0);
524 module_param_array(cardnr, int, NULL, 0);
525 MODULE_PARM_DESC(io, "I/O base address(es)");
526 MODULE_PARM_DESC(irq, "IRQ number(s) (assigned)");
527 MODULE_PARM_DESC(cardnr, "Card number(s) (as jumpered)");
529 static int t1isa_add_card(struct capi_driver *driver, capicardparams *data)
533 for (i = 0; i < MAX_CARDS; i++) {
534 if (isa_dev[i].resource[0].start)
537 isa_dev[i].resource[0].start = data->port;
538 isa_dev[i].irq = data->irq;
540 if (t1isa_probe(&isa_dev[i], data->cardnr) == 0)
546 static struct capi_driver capi_driver_t1isa = {
549 .add_card = t1isa_add_card,
552 static int __init t1isa_init(void)
558 if ((p = strchr(revision, ':')) != 0 && p[1]) {
559 strlcpy(rev, p + 2, 32);
560 if ((p = strchr(rev, '$')) != 0 && p > rev)
565 for (i = 0; i < MAX_CARDS; i++) {
569 isa_dev[i].resource[0].start = io[i];
570 isa_dev[i].irq = irq[i];
572 if (t1isa_probe(&isa_dev[i], cardnr[i]) != 0)
576 strlcpy(capi_driver_t1isa.revision, rev, 32);
577 register_capi_driver(&capi_driver_t1isa);
578 printk(KERN_INFO "t1isa: revision %s\n", rev);
583 static void __exit t1isa_exit(void)
587 for (i = 0; i < MAX_CARDS; i++) {
591 t1isa_remove(&isa_dev[i]);
595 module_init(t1isa_init);
596 module_exit(t1isa_exit);