tree-wide: fix assorted typos all over the place
[linux-2.6.git] / drivers / isdn / hardware / mISDN / mISDNisar.c
1 /*
2  * mISDNisar.c   ISAR (Siemens PSB 7110) specific functions
3  *
4  * Author Karsten Keil (keil@isdn4linux.de)
5  *
6  * Copyright 2009  by Karsten Keil <keil@isdn4linux.de>
7  *
8  * This program is free software; you can redistribute it and/or modify
9  * it under the terms of the GNU General Public License version 2 as
10  * published by the Free Software Foundation.
11  *
12  * This program is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15  * GNU General Public License for more details.
16  *
17  * You should have received a copy of the GNU General Public License
18  * along with this program; if not, write to the Free Software
19  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20  *
21  */
22
23 /* define this to enable static debug messages, if you kernel supports
24  * dynamic debugging, you should use debugfs for this
25  */
26 /* #define DEBUG */
27
28 #include <linux/delay.h>
29 #include <linux/vmalloc.h>
30 #include <linux/mISDNhw.h>
31 #include "isar.h"
32
33 #define ISAR_REV        "2.1"
34
35 MODULE_AUTHOR("Karsten Keil");
36 MODULE_LICENSE("GPL v2");
37 MODULE_VERSION(ISAR_REV);
38
39 #define DEBUG_HW_FIRMWARE_FIFO  0x10000
40
41 static const u8 faxmodulation_s[] = "3,24,48,72,73,74,96,97,98,121,122,145,146";
42 static const u8 faxmodulation[] = {3, 24, 48, 72, 73, 74, 96, 97, 98, 121,
43                                         122, 145, 146};
44 #define FAXMODCNT 13
45
46 static void isar_setup(struct isar_hw *);
47
48 static inline int
49 waitforHIA(struct isar_hw *isar, int timeout)
50 {
51         int t = timeout;
52         u8 val = isar->read_reg(isar->hw, ISAR_HIA);
53
54         while ((val & 1) && t) {
55                 udelay(1);
56                 t--;
57                 val = isar->read_reg(isar->hw, ISAR_HIA);
58         }
59         pr_debug("%s: HIA after %dus\n", isar->name, timeout - t);
60         return timeout;
61 }
62
63 /*
64  * send msg to ISAR mailbox
65  * if msg is NULL use isar->buf
66  */
67 static int
68 send_mbox(struct isar_hw *isar, u8 his, u8 creg, u8 len, u8 *msg)
69 {
70         if (!waitforHIA(isar, 1000))
71                 return 0;
72         pr_debug("send_mbox(%02x,%02x,%d)\n", his, creg, len);
73         isar->write_reg(isar->hw, ISAR_CTRL_H, creg);
74         isar->write_reg(isar->hw, ISAR_CTRL_L, len);
75         isar->write_reg(isar->hw, ISAR_WADR, 0);
76         if (!msg)
77                 msg = isar->buf;
78         if (msg && len) {
79                 isar->write_fifo(isar->hw, ISAR_MBOX, msg, len);
80                 if (isar->ch[0].bch.debug & DEBUG_HW_BFIFO) {
81                         int l = 0;
82
83                         while (l < (int)len) {
84                                 hex_dump_to_buffer(msg + l, len - l, 32, 1,
85                                         isar->log, 256, 1);
86                                 pr_debug("%s: %s %02x: %s\n", isar->name,
87                                         __func__, l, isar->log);
88                                 l += 32;
89                         }
90                 }
91         }
92         isar->write_reg(isar->hw, ISAR_HIS, his);
93         waitforHIA(isar, 1000);
94         return 1;
95 }
96
97 /*
98  * receive message from ISAR mailbox
99  * if msg is NULL use isar->buf
100  */
101 static void
102 rcv_mbox(struct isar_hw *isar, u8 *msg)
103 {
104         if (!msg)
105                 msg = isar->buf;
106         isar->write_reg(isar->hw, ISAR_RADR, 0);
107         if (msg && isar->clsb) {
108                 isar->read_fifo(isar->hw, ISAR_MBOX, msg, isar->clsb);
109                 if (isar->ch[0].bch.debug & DEBUG_HW_BFIFO) {
110                         int l = 0;
111
112                         while (l < (int)isar->clsb) {
113                                 hex_dump_to_buffer(msg + l, isar->clsb - l, 32,
114                                         1, isar->log, 256, 1);
115                                 pr_debug("%s: %s %02x: %s\n", isar->name,
116                                         __func__, l, isar->log);
117                                 l += 32;
118                         }
119                 }
120         }
121         isar->write_reg(isar->hw, ISAR_IIA, 0);
122 }
123
124 static inline void
125 get_irq_infos(struct isar_hw *isar)
126 {
127         isar->iis = isar->read_reg(isar->hw, ISAR_IIS);
128         isar->cmsb = isar->read_reg(isar->hw, ISAR_CTRL_H);
129         isar->clsb = isar->read_reg(isar->hw, ISAR_CTRL_L);
130         pr_debug("%s: rcv_mbox(%02x,%02x,%d)\n", isar->name,
131                 isar->iis, isar->cmsb, isar->clsb);
132 }
133
134 /*
135  * poll answer message from ISAR mailbox
136  * should be used only with ISAR IRQs disabled before DSP was started
137  *
138  */
139 static int
140 poll_mbox(struct isar_hw *isar, int maxdelay)
141 {
142         int t = maxdelay;
143         u8 irq;
144
145         irq = isar->read_reg(isar->hw, ISAR_IRQBIT);
146         while (t && !(irq & ISAR_IRQSTA)) {
147                 udelay(1);
148                 t--;
149         }
150         if (t)  {
151                 get_irq_infos(isar);
152                 rcv_mbox(isar, NULL);
153         }
154         pr_debug("%s: pulled %d bytes after %d us\n",
155                 isar->name, isar->clsb, maxdelay - t);
156         return t;
157 }
158
159 static int
160 ISARVersion(struct isar_hw *isar)
161 {
162         int ver;
163
164         /* disable ISAR IRQ */
165         isar->write_reg(isar->hw, ISAR_IRQBIT, 0);
166         isar->buf[0] = ISAR_MSG_HWVER;
167         isar->buf[1] = 0;
168         isar->buf[2] = 1;
169         if (!send_mbox(isar, ISAR_HIS_VNR, 0, 3, NULL))
170                 return -1;
171         if (!poll_mbox(isar, 1000))
172                 return -2;
173         if (isar->iis == ISAR_IIS_VNR) {
174                 if (isar->clsb == 1) {
175                         ver = isar->buf[0] & 0xf;
176                         return ver;
177                 }
178                 return -3;
179         }
180         return -4;
181 }
182
183 static int
184 load_firmware(struct isar_hw *isar, const u8 *buf, int size)
185 {
186         u32     saved_debug = isar->ch[0].bch.debug;
187         int     ret, cnt;
188         u8      nom, noc;
189         u16     left, val, *sp = (u16 *)buf;
190         u8      *mp;
191         u_long  flags;
192
193         struct {
194                 u16 sadr;
195                 u16 len;
196                 u16 d_key;
197         } blk_head;
198
199         if (1 != isar->version) {
200                 pr_err("%s: ISAR wrong version %d firmware download aborted\n",
201                         isar->name, isar->version);
202                 return -EINVAL;
203         }
204         if (!(saved_debug & DEBUG_HW_FIRMWARE_FIFO))
205                 isar->ch[0].bch.debug &= ~DEBUG_HW_BFIFO;
206         pr_debug("%s: load firmware %d words (%d bytes)\n",
207                 isar->name, size/2, size);
208         cnt = 0;
209         size /= 2;
210         /* disable ISAR IRQ */
211         spin_lock_irqsave(isar->hwlock, flags);
212         isar->write_reg(isar->hw, ISAR_IRQBIT, 0);
213         spin_unlock_irqrestore(isar->hwlock, flags);
214         while (cnt < size) {
215                 blk_head.sadr = le16_to_cpu(*sp++);
216                 blk_head.len = le16_to_cpu(*sp++);
217                 blk_head.d_key = le16_to_cpu(*sp++);
218                 cnt += 3;
219                 pr_debug("ISAR firmware block (%#x,%d,%#x)\n",
220                         blk_head.sadr, blk_head.len, blk_head.d_key & 0xff);
221                 left = blk_head.len;
222                 if (cnt + left > size) {
223                         pr_info("%s: firmware error have %d need %d words\n",
224                                 isar->name, size, cnt + left);
225                         ret = -EINVAL;
226                         goto reterrflg;
227                 }
228                 spin_lock_irqsave(isar->hwlock, flags);
229                 if (!send_mbox(isar, ISAR_HIS_DKEY, blk_head.d_key & 0xff,
230                     0, NULL)) {
231                         pr_info("ISAR send_mbox dkey failed\n");
232                         ret = -ETIME;
233                         goto reterror;
234                 }
235                 if (!poll_mbox(isar, 1000)) {
236                         pr_warning("ISAR poll_mbox dkey failed\n");
237                         ret = -ETIME;
238                         goto reterror;
239                 }
240                 spin_unlock_irqrestore(isar->hwlock, flags);
241                 if ((isar->iis != ISAR_IIS_DKEY) || isar->cmsb || isar->clsb) {
242                         pr_info("ISAR wrong dkey response (%x,%x,%x)\n",
243                                 isar->iis, isar->cmsb, isar->clsb);
244                         ret = 1;
245                         goto reterrflg;
246                 }
247                 while (left > 0) {
248                         if (left > 126)
249                                 noc = 126;
250                         else
251                                 noc = left;
252                         nom = (2 * noc) + 3;
253                         mp  = isar->buf;
254                         /* the ISAR is big endian */
255                         *mp++ = blk_head.sadr >> 8;
256                         *mp++ = blk_head.sadr & 0xFF;
257                         left -= noc;
258                         cnt += noc;
259                         *mp++ = noc;
260                         pr_debug("%s: load %3d words at %04x\n", isar->name,
261                                 noc, blk_head.sadr);
262                         blk_head.sadr += noc;
263                         while (noc) {
264                                 val = le16_to_cpu(*sp++);
265                                 *mp++ = val >> 8;
266                                 *mp++ = val & 0xFF;;
267                                 noc--;
268                         }
269                         spin_lock_irqsave(isar->hwlock, flags);
270                         if (!send_mbox(isar, ISAR_HIS_FIRM, 0, nom, NULL)) {
271                                 pr_info("ISAR send_mbox prog failed\n");
272                                 ret = -ETIME;
273                                 goto reterror;
274                         }
275                         if (!poll_mbox(isar, 1000)) {
276                                 pr_info("ISAR poll_mbox prog failed\n");
277                                 ret = -ETIME;
278                                 goto reterror;
279                         }
280                         spin_unlock_irqrestore(isar->hwlock, flags);
281                         if ((isar->iis != ISAR_IIS_FIRM) ||
282                             isar->cmsb || isar->clsb) {
283                                 pr_info("ISAR wrong prog response (%x,%x,%x)\n",
284                                         isar->iis, isar->cmsb, isar->clsb);
285                                 ret = -EIO;
286                                 goto reterrflg;
287                         }
288                 }
289                 pr_debug("%s: ISAR firmware block %d words loaded\n",
290                         isar->name, blk_head.len);
291         }
292         isar->ch[0].bch.debug = saved_debug;
293         /* 10ms delay */
294         cnt = 10;
295         while (cnt--)
296                 mdelay(1);
297         isar->buf[0] = 0xff;
298         isar->buf[1] = 0xfe;
299         isar->bstat = 0;
300         spin_lock_irqsave(isar->hwlock, flags);
301         if (!send_mbox(isar, ISAR_HIS_STDSP, 0, 2, NULL)) {
302                 pr_info("ISAR send_mbox start dsp failed\n");
303                 ret = -ETIME;
304                 goto reterror;
305         }
306         if (!poll_mbox(isar, 1000)) {
307                 pr_info("ISAR poll_mbox start dsp failed\n");
308                 ret = -ETIME;
309                 goto reterror;
310         }
311         if ((isar->iis != ISAR_IIS_STDSP) || isar->cmsb || isar->clsb) {
312                 pr_info("ISAR wrong start dsp response (%x,%x,%x)\n",
313                         isar->iis, isar->cmsb, isar->clsb);
314                 ret = -EIO;
315                 goto reterror;
316         } else
317                 pr_debug("%s: ISAR start dsp success\n", isar->name);
318
319         /* NORMAL mode entered */
320         /* Enable IRQs of ISAR */
321         isar->write_reg(isar->hw, ISAR_IRQBIT, ISAR_IRQSTA);
322         spin_unlock_irqrestore(isar->hwlock, flags);
323         cnt = 1000; /* max 1s */
324         while ((!isar->bstat) && cnt) {
325                 mdelay(1);
326                 cnt--;
327         }
328         if (!cnt) {
329                 pr_info("ISAR no general status event received\n");
330                 ret = -ETIME;
331                 goto reterrflg;
332         } else
333                 pr_debug("%s: ISAR general status event %x\n",
334                         isar->name, isar->bstat);
335         /* 10ms delay */
336         cnt = 10;
337         while (cnt--)
338                 mdelay(1);
339         isar->iis = 0;
340         spin_lock_irqsave(isar->hwlock, flags);
341         if (!send_mbox(isar, ISAR_HIS_DIAG, ISAR_CTRL_STST, 0, NULL)) {
342                 pr_info("ISAR send_mbox self tst failed\n");
343                 ret = -ETIME;
344                 goto reterror;
345         }
346         spin_unlock_irqrestore(isar->hwlock, flags);
347         cnt = 10000; /* max 100 ms */
348         while ((isar->iis != ISAR_IIS_DIAG) && cnt) {
349                 udelay(10);
350                 cnt--;
351         }
352         mdelay(1);
353         if (!cnt) {
354                 pr_info("ISAR no self tst response\n");
355                 ret = -ETIME;
356                 goto reterrflg;
357         }
358         if ((isar->cmsb == ISAR_CTRL_STST) && (isar->clsb == 1)
359             && (isar->buf[0] == 0))
360                 pr_debug("%s: ISAR selftest OK\n", isar->name);
361         else {
362                 pr_info("ISAR selftest not OK %x/%x/%x\n",
363                         isar->cmsb, isar->clsb, isar->buf[0]);
364                 ret = -EIO;
365                 goto reterrflg;
366         }
367         spin_lock_irqsave(isar->hwlock, flags);
368         isar->iis = 0;
369         if (!send_mbox(isar, ISAR_HIS_DIAG, ISAR_CTRL_SWVER, 0, NULL)) {
370                 pr_info("ISAR RQST SVN failed\n");
371                 ret = -ETIME;
372                 goto reterror;
373         }
374         spin_unlock_irqrestore(isar->hwlock, flags);
375         cnt = 30000; /* max 300 ms */
376         while ((isar->iis != ISAR_IIS_DIAG) && cnt) {
377                 udelay(10);
378                 cnt--;
379         }
380         mdelay(1);
381         if (!cnt) {
382                 pr_info("ISAR no SVN response\n");
383                 ret = -ETIME;
384                 goto reterrflg;
385         } else {
386                 if ((isar->cmsb == ISAR_CTRL_SWVER) && (isar->clsb == 1)) {
387                         pr_notice("%s: ISAR software version %#x\n",
388                                 isar->name, isar->buf[0]);
389                 } else {
390                         pr_info("%s: ISAR wrong swver response (%x,%x)"
391                                 " cnt(%d)\n", isar->name, isar->cmsb,
392                                 isar->clsb, cnt);
393                         ret = -EIO;
394                         goto reterrflg;
395                 }
396         }
397         spin_lock_irqsave(isar->hwlock, flags);
398         isar_setup(isar);
399         spin_unlock_irqrestore(isar->hwlock, flags);
400         ret = 0;
401 reterrflg:
402         spin_lock_irqsave(isar->hwlock, flags);
403 reterror:
404         isar->ch[0].bch.debug = saved_debug;
405         if (ret)
406                 /* disable ISAR IRQ */
407                 isar->write_reg(isar->hw, ISAR_IRQBIT, 0);
408         spin_unlock_irqrestore(isar->hwlock, flags);
409         return ret;
410 }
411
412 static inline void
413 deliver_status(struct isar_ch *ch, int status)
414 {
415         pr_debug("%s: HL->LL FAXIND %x\n", ch->is->name, status);
416         _queue_data(&ch->bch.ch, PH_CONTROL_IND, status, 0, NULL, GFP_ATOMIC);
417 }
418
419 static inline void
420 isar_rcv_frame(struct isar_ch *ch)
421 {
422         u8              *ptr;
423
424         if (!ch->is->clsb) {
425                 pr_debug("%s; ISAR zero len frame\n", ch->is->name);
426                 ch->is->write_reg(ch->is->hw, ISAR_IIA, 0);
427                 return;
428         }
429         switch (ch->bch.state) {
430         case ISDN_P_NONE:
431                 pr_debug("%s: ISAR protocol 0 spurious IIS_RDATA %x/%x/%x\n",
432                         ch->is->name, ch->is->iis, ch->is->cmsb, ch->is->clsb);
433                 ch->is->write_reg(ch->is->hw, ISAR_IIA, 0);
434                 break;
435         case ISDN_P_B_RAW:
436         case ISDN_P_B_L2DTMF:
437         case ISDN_P_B_MODEM_ASYNC:
438                 if (!ch->bch.rx_skb) {
439                         ch->bch.rx_skb = mI_alloc_skb(ch->bch.maxlen,
440                                                 GFP_ATOMIC);
441                         if (unlikely(!ch->bch.rx_skb)) {
442                                 pr_info("%s: B receive out of memory\n",
443                                         ch->is->name);
444                                 ch->is->write_reg(ch->is->hw, ISAR_IIA, 0);
445                                 break;
446                         }
447                 }
448                 rcv_mbox(ch->is, skb_put(ch->bch.rx_skb, ch->is->clsb));
449                 recv_Bchannel(&ch->bch, 0);
450                 break;
451         case ISDN_P_B_HDLC:
452                 if (!ch->bch.rx_skb) {
453                         ch->bch.rx_skb = mI_alloc_skb(ch->bch.maxlen,
454                                                 GFP_ATOMIC);
455                         if (unlikely(!ch->bch.rx_skb)) {
456                                 pr_info("%s: B receive out of memory\n",
457                                         ch->is->name);
458                                 ch->is->write_reg(ch->is->hw, ISAR_IIA, 0);
459                                 break;
460                         }
461                 }
462                 if ((ch->bch.rx_skb->len + ch->is->clsb) >
463                     (ch->bch.maxlen + 2)) {
464                         pr_debug("%s: incoming packet too large\n",
465                                 ch->is->name);
466                         ch->is->write_reg(ch->is->hw, ISAR_IIA, 0);
467                         skb_trim(ch->bch.rx_skb, 0);
468                         break;
469                 }
470                 if (ch->is->cmsb & HDLC_ERROR) {
471                         pr_debug("%s: ISAR frame error %x len %d\n",
472                                 ch->is->name, ch->is->cmsb, ch->is->clsb);
473 #ifdef ERROR_STATISTIC
474                         if (ch->is->cmsb & HDLC_ERR_RER)
475                                 ch->bch.err_inv++;
476                         if (ch->is->cmsb & HDLC_ERR_CER)
477                                 ch->bch.err_crc++;
478 #endif
479                         skb_trim(ch->bch.rx_skb, 0);
480                         ch->is->write_reg(ch->is->hw, ISAR_IIA, 0);
481                         break;
482                 }
483                 if (ch->is->cmsb & HDLC_FSD)
484                         skb_trim(ch->bch.rx_skb, 0);
485                 ptr = skb_put(ch->bch.rx_skb, ch->is->clsb);
486                 rcv_mbox(ch->is, ptr);
487                 if (ch->is->cmsb & HDLC_FED) {
488                         if (ch->bch.rx_skb->len < 3) { /* last 2 are the FCS */
489                                 pr_debug("%s: ISAR frame to short %d\n",
490                                         ch->is->name, ch->bch.rx_skb->len);
491                                 skb_trim(ch->bch.rx_skb, 0);
492                                 break;
493                         }
494                         skb_trim(ch->bch.rx_skb, ch->bch.rx_skb->len - 2);
495                         recv_Bchannel(&ch->bch, 0);
496                 }
497                 break;
498         case ISDN_P_B_T30_FAX:
499                 if (ch->state != STFAX_ACTIV) {
500                         pr_debug("%s: isar_rcv_frame: not ACTIV\n",
501                                 ch->is->name);
502                         ch->is->write_reg(ch->is->hw, ISAR_IIA, 0);
503                         if (ch->bch.rx_skb)
504                                 skb_trim(ch->bch.rx_skb, 0);
505                         break;
506                 }
507                 if (!ch->bch.rx_skb) {
508                         ch->bch.rx_skb = mI_alloc_skb(ch->bch.maxlen,
509                                                 GFP_ATOMIC);
510                         if (unlikely(!ch->bch.rx_skb)) {
511                                 pr_info("%s: B receive out of memory\n",
512                                         __func__);
513                                 ch->is->write_reg(ch->is->hw, ISAR_IIA, 0);
514                                 break;
515                         }
516                 }
517                 if (ch->cmd == PCTRL_CMD_FRM) {
518                         rcv_mbox(ch->is, skb_put(ch->bch.rx_skb, ch->is->clsb));
519                         pr_debug("%s: isar_rcv_frame: %d\n",
520                                 ch->is->name, ch->bch.rx_skb->len);
521                         if (ch->is->cmsb & SART_NMD) { /* ABORT */
522                                 pr_debug("%s: isar_rcv_frame: no more data\n",
523                                         ch->is->name);
524                                 ch->is->write_reg(ch->is->hw, ISAR_IIA, 0);
525                                 send_mbox(ch->is, SET_DPS(ch->dpath) |
526                                         ISAR_HIS_PUMPCTRL, PCTRL_CMD_ESC,
527                                         0, NULL);
528                                 ch->state = STFAX_ESCAPE;
529                                 /* set_skb_flag(skb, DF_NOMOREDATA); */
530                         }
531                         recv_Bchannel(&ch->bch, 0);
532                         if (ch->is->cmsb & SART_NMD)
533                                 deliver_status(ch, HW_MOD_NOCARR);
534                         break;
535                 }
536                 if (ch->cmd != PCTRL_CMD_FRH) {
537                         pr_debug("%s: isar_rcv_frame: unknown fax mode %x\n",
538                                 ch->is->name, ch->cmd);
539                         ch->is->write_reg(ch->is->hw, ISAR_IIA, 0);
540                         if (ch->bch.rx_skb)
541                                 skb_trim(ch->bch.rx_skb, 0);
542                         break;
543                 }
544                 /* PCTRL_CMD_FRH */
545                 if ((ch->bch.rx_skb->len + ch->is->clsb) >
546                     (ch->bch.maxlen + 2)) {
547                         pr_info("%s: %s incoming packet too large\n",
548                                 ch->is->name, __func__);
549                         ch->is->write_reg(ch->is->hw, ISAR_IIA, 0);
550                         skb_trim(ch->bch.rx_skb, 0);
551                         break;
552                 }  else if (ch->is->cmsb & HDLC_ERROR) {
553                         pr_info("%s: ISAR frame error %x len %d\n",
554                                 ch->is->name, ch->is->cmsb, ch->is->clsb);
555                         skb_trim(ch->bch.rx_skb, 0);
556                         ch->is->write_reg(ch->is->hw, ISAR_IIA, 0);
557                         break;
558                 }
559                 if (ch->is->cmsb & HDLC_FSD)
560                         skb_trim(ch->bch.rx_skb, 0);
561                 ptr = skb_put(ch->bch.rx_skb, ch->is->clsb);
562                 rcv_mbox(ch->is, ptr);
563                 if (ch->is->cmsb & HDLC_FED) {
564                         if (ch->bch.rx_skb->len < 3) { /* last 2 are the FCS */
565                                 pr_info("%s: ISAR frame to short %d\n",
566                                         ch->is->name, ch->bch.rx_skb->len);
567                                 skb_trim(ch->bch.rx_skb, 0);
568                                 break;
569                         }
570                         skb_trim(ch->bch.rx_skb, ch->bch.rx_skb->len - 2);
571                         recv_Bchannel(&ch->bch, 0);
572                 }
573                 if (ch->is->cmsb & SART_NMD) { /* ABORT */
574                         pr_debug("%s: isar_rcv_frame: no more data\n",
575                                 ch->is->name);
576                         ch->is->write_reg(ch->is->hw, ISAR_IIA, 0);
577                         if (ch->bch.rx_skb)
578                                 skb_trim(ch->bch.rx_skb, 0);
579                         send_mbox(ch->is, SET_DPS(ch->dpath) |
580                                 ISAR_HIS_PUMPCTRL, PCTRL_CMD_ESC, 0, NULL);
581                         ch->state = STFAX_ESCAPE;
582                         deliver_status(ch, HW_MOD_NOCARR);
583                 }
584                 break;
585         default:
586                 pr_info("isar_rcv_frame protocol (%x)error\n", ch->bch.state);
587                 ch->is->write_reg(ch->is->hw, ISAR_IIA, 0);
588                 break;
589         }
590 }
591
592 static void
593 isar_fill_fifo(struct isar_ch *ch)
594 {
595         int count;
596         u8 msb;
597         u8 *ptr;
598
599         pr_debug("%s: ch%d  tx_skb %p tx_idx %d\n",
600                 ch->is->name, ch->bch.nr, ch->bch.tx_skb, ch->bch.tx_idx);
601         if (!ch->bch.tx_skb)
602                 return;
603         count = ch->bch.tx_skb->len - ch->bch.tx_idx;
604         if (count <= 0)
605                 return;
606         if (!(ch->is->bstat &
607                 (ch->dpath == 1 ? BSTAT_RDM1 : BSTAT_RDM2)))
608                 return;
609         if (count > ch->mml) {
610                 msb = 0;
611                 count = ch->mml;
612         } else {
613                 msb = HDLC_FED;
614         }
615         ptr = ch->bch.tx_skb->data + ch->bch.tx_idx;
616         if (!ch->bch.tx_idx) {
617                 pr_debug("%s: frame start\n", ch->is->name);
618                 if ((ch->bch.state == ISDN_P_B_T30_FAX) &&
619                         (ch->cmd == PCTRL_CMD_FTH)) {
620                         if (count > 1) {
621                                 if ((ptr[0] == 0xff) && (ptr[1] == 0x13)) {
622                                         /* last frame */
623                                         test_and_set_bit(FLG_LASTDATA,
624                                                 &ch->bch.Flags);
625                                         pr_debug("%s: set LASTDATA\n",
626                                                 ch->is->name);
627                                         if (msb == HDLC_FED)
628                                                 test_and_set_bit(FLG_DLEETX,
629                                                         &ch->bch.Flags);
630                                 }
631                         }
632                 }
633                 msb |= HDLC_FST;
634         }
635         ch->bch.tx_idx += count;
636         switch (ch->bch.state) {
637         case ISDN_P_NONE:
638                 pr_info("%s: wrong protocol 0\n", __func__);
639                 break;
640         case ISDN_P_B_RAW:
641         case ISDN_P_B_L2DTMF:
642         case ISDN_P_B_MODEM_ASYNC:
643                 send_mbox(ch->is, SET_DPS(ch->dpath) | ISAR_HIS_SDATA,
644                         0, count, ptr);
645                 break;
646         case ISDN_P_B_HDLC:
647                 send_mbox(ch->is, SET_DPS(ch->dpath) | ISAR_HIS_SDATA,
648                         msb, count, ptr);
649                 break;
650         case ISDN_P_B_T30_FAX:
651                 if (ch->state != STFAX_ACTIV)
652                         pr_debug("%s: not ACTIV\n", ch->is->name);
653                 else if (ch->cmd == PCTRL_CMD_FTH)
654                         send_mbox(ch->is, SET_DPS(ch->dpath) | ISAR_HIS_SDATA,
655                                 msb, count, ptr);
656                 else if (ch->cmd == PCTRL_CMD_FTM)
657                         send_mbox(ch->is, SET_DPS(ch->dpath) | ISAR_HIS_SDATA,
658                                 0, count, ptr);
659                 else
660                         pr_debug("%s: not FTH/FTM\n", ch->is->name);
661                 break;
662         default:
663                 pr_info("%s: protocol(%x) error\n",
664                         __func__, ch->bch.state);
665                 break;
666         }
667 }
668
669 static inline struct isar_ch *
670 sel_bch_isar(struct isar_hw *isar, u8 dpath)
671 {
672         struct isar_ch  *base = &isar->ch[0];
673
674         if ((!dpath) || (dpath > 2))
675                 return NULL;
676         if (base->dpath == dpath)
677                 return base;
678         base++;
679         if (base->dpath == dpath)
680                 return base;
681         return NULL;
682 }
683
684 static void
685 send_next(struct isar_ch *ch)
686 {
687         pr_debug("%s: %s ch%d tx_skb %p tx_idx %d\n",
688                 ch->is->name, __func__, ch->bch.nr,
689                 ch->bch.tx_skb, ch->bch.tx_idx);
690         if (ch->bch.state == ISDN_P_B_T30_FAX) {
691                 if (ch->cmd == PCTRL_CMD_FTH) {
692                         if (test_bit(FLG_LASTDATA, &ch->bch.Flags)) {
693                                 pr_debug("set NMD_DATA\n");
694                                 test_and_set_bit(FLG_NMD_DATA, &ch->bch.Flags);
695                         }
696                 } else if (ch->cmd == PCTRL_CMD_FTM) {
697                         if (test_bit(FLG_DLEETX, &ch->bch.Flags)) {
698                                 test_and_set_bit(FLG_LASTDATA, &ch->bch.Flags);
699                                 test_and_set_bit(FLG_NMD_DATA, &ch->bch.Flags);
700                         }
701                 }
702         }
703         if (ch->bch.tx_skb) {
704                 /* send confirm, on trans, free on hdlc. */
705                 if (test_bit(FLG_TRANSPARENT, &ch->bch.Flags))
706                         confirm_Bsend(&ch->bch);
707                 dev_kfree_skb(ch->bch.tx_skb);
708         }
709         if (get_next_bframe(&ch->bch))
710                 isar_fill_fifo(ch);
711         else {
712                 if (test_and_clear_bit(FLG_DLEETX, &ch->bch.Flags)) {
713                         if (test_and_clear_bit(FLG_LASTDATA,
714                             &ch->bch.Flags)) {
715                                 if (test_and_clear_bit(FLG_NMD_DATA,
716                                     &ch->bch.Flags)) {
717                                         u8 zd = 0;
718                                         send_mbox(ch->is, SET_DPS(ch->dpath) |
719                                                 ISAR_HIS_SDATA, 0x01, 1, &zd);
720                                 }
721                                 test_and_set_bit(FLG_LL_OK, &ch->bch.Flags);
722                         } else {
723                                 deliver_status(ch, HW_MOD_CONNECT);
724                         }
725                 }
726         }
727 }
728
729 static void
730 check_send(struct isar_hw *isar, u8 rdm)
731 {
732         struct isar_ch  *ch;
733
734         pr_debug("%s: rdm %x\n", isar->name, rdm);
735         if (rdm & BSTAT_RDM1) {
736                 ch = sel_bch_isar(isar, 1);
737                 if (ch && test_bit(FLG_ACTIVE, &ch->bch.Flags)) {
738                         if (ch->bch.tx_skb && (ch->bch.tx_skb->len >
739                             ch->bch.tx_idx))
740                                 isar_fill_fifo(ch);
741                         else
742                                 send_next(ch);
743                 }
744         }
745         if (rdm & BSTAT_RDM2) {
746                 ch = sel_bch_isar(isar, 2);
747                 if (ch && test_bit(FLG_ACTIVE, &ch->bch.Flags)) {
748                         if (ch->bch.tx_skb && (ch->bch.tx_skb->len >
749                             ch->bch.tx_idx))
750                                 isar_fill_fifo(ch);
751                         else
752                                 send_next(ch);
753                 }
754         }
755 }
756
757 const char *dmril[] = {"NO SPEED", "1200/75", "NODEF2", "75/1200", "NODEF4",
758                         "300", "600", "1200", "2400", "4800", "7200",
759                         "9600nt", "9600t", "12000", "14400", "WRONG"};
760 const char *dmrim[] = {"NO MOD", "NO DEF", "V32/V32b", "V22", "V21",
761                         "Bell103", "V23", "Bell202", "V17", "V29", "V27ter"};
762
763 static void
764 isar_pump_status_rsp(struct isar_ch *ch) {
765         u8 ril = ch->is->buf[0];
766         u8 rim;
767
768         if (!test_and_clear_bit(ISAR_RATE_REQ, &ch->is->Flags))
769                 return;
770         if (ril > 14) {
771                 pr_info("%s: wrong pstrsp ril=%d\n", ch->is->name, ril);
772                 ril = 15;
773         }
774         switch (ch->is->buf[1]) {
775         case 0:
776                 rim = 0;
777                 break;
778         case 0x20:
779                 rim = 2;
780                 break;
781         case 0x40:
782                 rim = 3;
783                 break;
784         case 0x41:
785                 rim = 4;
786                 break;
787         case 0x51:
788                 rim = 5;
789                 break;
790         case 0x61:
791                 rim = 6;
792                 break;
793         case 0x71:
794                 rim = 7;
795                 break;
796         case 0x82:
797                 rim = 8;
798                 break;
799         case 0x92:
800                 rim = 9;
801                 break;
802         case 0xa2:
803                 rim = 10;
804                 break;
805         default:
806                 rim = 1;
807                 break;
808         }
809         sprintf(ch->conmsg, "%s %s", dmril[ril], dmrim[rim]);
810         pr_debug("%s: pump strsp %s\n", ch->is->name, ch->conmsg);
811 }
812
813 static void
814 isar_pump_statev_modem(struct isar_ch *ch, u8 devt) {
815         u8 dps = SET_DPS(ch->dpath);
816
817         switch (devt) {
818         case PSEV_10MS_TIMER:
819                 pr_debug("%s: pump stev TIMER\n", ch->is->name);
820                 break;
821         case PSEV_CON_ON:
822                 pr_debug("%s: pump stev CONNECT\n", ch->is->name);
823                 deliver_status(ch, HW_MOD_CONNECT);
824                 break;
825         case PSEV_CON_OFF:
826                 pr_debug("%s: pump stev NO CONNECT\n", ch->is->name);
827                 send_mbox(ch->is, dps | ISAR_HIS_PSTREQ, 0, 0, NULL);
828                 deliver_status(ch, HW_MOD_NOCARR);
829                 break;
830         case PSEV_V24_OFF:
831                 pr_debug("%s: pump stev V24 OFF\n", ch->is->name);
832                 break;
833         case PSEV_CTS_ON:
834                 pr_debug("%s: pump stev CTS ON\n", ch->is->name);
835                 break;
836         case PSEV_CTS_OFF:
837                 pr_debug("%s pump stev CTS OFF\n", ch->is->name);
838                 break;
839         case PSEV_DCD_ON:
840                 pr_debug("%s: pump stev CARRIER ON\n", ch->is->name);
841                 test_and_set_bit(ISAR_RATE_REQ, &ch->is->Flags);
842                 send_mbox(ch->is, dps | ISAR_HIS_PSTREQ, 0, 0, NULL);
843                 break;
844         case PSEV_DCD_OFF:
845                 pr_debug("%s: pump stev CARRIER OFF\n", ch->is->name);
846                 break;
847         case PSEV_DSR_ON:
848                 pr_debug("%s: pump stev DSR ON\n", ch->is->name);
849                 break;
850         case PSEV_DSR_OFF:
851                 pr_debug("%s: pump stev DSR_OFF\n", ch->is->name);
852                 break;
853         case PSEV_REM_RET:
854                 pr_debug("%s: pump stev REMOTE RETRAIN\n", ch->is->name);
855                 break;
856         case PSEV_REM_REN:
857                 pr_debug("%s: pump stev REMOTE RENEGOTIATE\n", ch->is->name);
858                 break;
859         case PSEV_GSTN_CLR:
860                 pr_debug("%s: pump stev GSTN CLEAR\n", ch->is->name);
861                 break;
862         default:
863                 pr_info("u%s: unknown pump stev %x\n", ch->is->name, devt);
864                 break;
865         }
866 }
867
868 static void
869 isar_pump_statev_fax(struct isar_ch *ch, u8 devt) {
870         u8 dps = SET_DPS(ch->dpath);
871         u8 p1;
872
873         switch (devt) {
874         case PSEV_10MS_TIMER:
875                 pr_debug("%s: pump stev TIMER\n", ch->is->name);
876                 break;
877         case PSEV_RSP_READY:
878                 pr_debug("%s: pump stev RSP_READY\n", ch->is->name);
879                 ch->state = STFAX_READY;
880                 deliver_status(ch, HW_MOD_READY);
881 #ifdef AUTOCON
882                 if (test_bit(BC_FLG_ORIG, &ch->bch.Flags))
883                         isar_pump_cmd(bch, HW_MOD_FRH, 3);
884                 else
885                         isar_pump_cmd(bch, HW_MOD_FTH, 3);
886 #endif
887                 break;
888         case PSEV_LINE_TX_H:
889                 if (ch->state == STFAX_LINE) {
890                         pr_debug("%s: pump stev LINE_TX_H\n", ch->is->name);
891                         ch->state = STFAX_CONT;
892                         send_mbox(ch->is, dps | ISAR_HIS_PUMPCTRL,
893                                 PCTRL_CMD_CONT, 0, NULL);
894                 } else {
895                         pr_debug("%s: pump stev LINE_TX_H wrong st %x\n",
896                                 ch->is->name, ch->state);
897                 }
898                 break;
899         case PSEV_LINE_RX_H:
900                 if (ch->state == STFAX_LINE) {
901                         pr_debug("%s: pump stev LINE_RX_H\n", ch->is->name);
902                         ch->state = STFAX_CONT;
903                         send_mbox(ch->is, dps | ISAR_HIS_PUMPCTRL,
904                                 PCTRL_CMD_CONT, 0, NULL);
905                 } else {
906                         pr_debug("%s: pump stev LINE_RX_H wrong st %x\n",
907                                 ch->is->name, ch->state);
908                 }
909                 break;
910         case PSEV_LINE_TX_B:
911                 if (ch->state == STFAX_LINE) {
912                         pr_debug("%s: pump stev LINE_TX_B\n", ch->is->name);
913                         ch->state = STFAX_CONT;
914                         send_mbox(ch->is, dps | ISAR_HIS_PUMPCTRL,
915                                 PCTRL_CMD_CONT, 0, NULL);
916                 } else {
917                         pr_debug("%s: pump stev LINE_TX_B wrong st %x\n",
918                                 ch->is->name, ch->state);
919                 }
920                 break;
921         case PSEV_LINE_RX_B:
922                 if (ch->state == STFAX_LINE) {
923                         pr_debug("%s: pump stev LINE_RX_B\n", ch->is->name);
924                         ch->state = STFAX_CONT;
925                         send_mbox(ch->is, dps | ISAR_HIS_PUMPCTRL,
926                                 PCTRL_CMD_CONT, 0, NULL);
927                 } else {
928                         pr_debug("%s: pump stev LINE_RX_B wrong st %x\n",
929                                 ch->is->name, ch->state);
930                 }
931                 break;
932         case PSEV_RSP_CONN:
933                 if (ch->state == STFAX_CONT) {
934                         pr_debug("%s: pump stev RSP_CONN\n", ch->is->name);
935                         ch->state = STFAX_ACTIV;
936                         test_and_set_bit(ISAR_RATE_REQ, &ch->is->Flags);
937                         send_mbox(ch->is, dps | ISAR_HIS_PSTREQ, 0, 0, NULL);
938                         if (ch->cmd == PCTRL_CMD_FTH) {
939                                 int delay = (ch->mod == 3) ? 1000 : 200;
940                                 /* 1s (200 ms) Flags before data */
941                                 if (test_and_set_bit(FLG_FTI_RUN,
942                                     &ch->bch.Flags))
943                                         del_timer(&ch->ftimer);
944                                 ch->ftimer.expires =
945                                         jiffies + ((delay * HZ)/1000);
946                                 test_and_set_bit(FLG_LL_CONN,
947                                         &ch->bch.Flags);
948                                 add_timer(&ch->ftimer);
949                         } else {
950                                 deliver_status(ch, HW_MOD_CONNECT);
951                         }
952                 } else {
953                         pr_debug("%s: pump stev RSP_CONN wrong st %x\n",
954                                 ch->is->name, ch->state);
955                 }
956                 break;
957         case PSEV_FLAGS_DET:
958                 pr_debug("%s: pump stev FLAGS_DET\n", ch->is->name);
959                 break;
960         case PSEV_RSP_DISC:
961                 pr_debug("%s: pump stev RSP_DISC state(%d)\n",
962                         ch->is->name, ch->state);
963                 if (ch->state == STFAX_ESCAPE) {
964                         p1 = 5;
965                         switch (ch->newcmd) {
966                         case 0:
967                                 ch->state = STFAX_READY;
968                                 break;
969                         case PCTRL_CMD_FTM:
970                                 p1 = 2;
971                         case PCTRL_CMD_FTH:
972                                 send_mbox(ch->is, dps | ISAR_HIS_PUMPCTRL,
973                                         PCTRL_CMD_SILON, 1, &p1);
974                                 ch->state = STFAX_SILDET;
975                                 break;
976                         case PCTRL_CMD_FRH:
977                         case PCTRL_CMD_FRM:
978                                 ch->mod = ch->newmod;
979                                 p1 = ch->newmod;
980                                 ch->newmod = 0;
981                                 ch->cmd = ch->newcmd;
982                                 ch->newcmd = 0;
983                                 send_mbox(ch->is, dps | ISAR_HIS_PUMPCTRL,
984                                         ch->cmd, 1, &p1);
985                                 ch->state = STFAX_LINE;
986                                 ch->try_mod = 3;
987                                 break;
988                         default:
989                                 pr_debug("%s: RSP_DISC unknown newcmd %x\n",
990                                         ch->is->name, ch->newcmd);
991                                 break;
992                         }
993                 } else if (ch->state == STFAX_ACTIV) {
994                         if (test_and_clear_bit(FLG_LL_OK, &ch->bch.Flags))
995                                 deliver_status(ch, HW_MOD_OK);
996                         else if (ch->cmd == PCTRL_CMD_FRM)
997                                 deliver_status(ch, HW_MOD_NOCARR);
998                         else
999                                 deliver_status(ch, HW_MOD_FCERROR);
1000                         ch->state = STFAX_READY;
1001                 } else if (ch->state != STFAX_SILDET) {
1002                         /* ignore in STFAX_SILDET */
1003                         ch->state = STFAX_READY;
1004                         deliver_status(ch, HW_MOD_FCERROR);
1005                 }
1006                 break;
1007         case PSEV_RSP_SILDET:
1008                 pr_debug("%s: pump stev RSP_SILDET\n", ch->is->name);
1009                 if (ch->state == STFAX_SILDET) {
1010                         ch->mod = ch->newmod;
1011                         p1 = ch->newmod;
1012                         ch->newmod = 0;
1013                         ch->cmd = ch->newcmd;
1014                         ch->newcmd = 0;
1015                         send_mbox(ch->is, dps | ISAR_HIS_PUMPCTRL,
1016                                 ch->cmd, 1, &p1);
1017                         ch->state = STFAX_LINE;
1018                         ch->try_mod = 3;
1019                 }
1020                 break;
1021         case PSEV_RSP_SILOFF:
1022                 pr_debug("%s: pump stev RSP_SILOFF\n", ch->is->name);
1023                 break;
1024         case PSEV_RSP_FCERR:
1025                 if (ch->state == STFAX_LINE) {
1026                         pr_debug("%s: pump stev RSP_FCERR try %d\n",
1027                                 ch->is->name, ch->try_mod);
1028                         if (ch->try_mod--) {
1029                                 send_mbox(ch->is, dps | ISAR_HIS_PUMPCTRL,
1030                                         ch->cmd, 1, &ch->mod);
1031                                 break;
1032                         }
1033                 }
1034                 pr_debug("%s: pump stev RSP_FCERR\n", ch->is->name);
1035                 ch->state = STFAX_ESCAPE;
1036                 send_mbox(ch->is, dps | ISAR_HIS_PUMPCTRL, PCTRL_CMD_ESC,
1037                         0, NULL);
1038                 deliver_status(ch, HW_MOD_FCERROR);
1039                 break;
1040         default:
1041                 break;
1042         }
1043 }
1044
1045 void
1046 mISDNisar_irq(struct isar_hw *isar)
1047 {
1048         struct isar_ch *ch;
1049
1050         get_irq_infos(isar);
1051         switch (isar->iis & ISAR_IIS_MSCMSD) {
1052         case ISAR_IIS_RDATA:
1053                 ch = sel_bch_isar(isar, isar->iis >> 6);
1054                 if (ch)
1055                         isar_rcv_frame(ch);
1056                 else {
1057                         pr_debug("%s: ISAR spurious IIS_RDATA %x/%x/%x\n",
1058                                 isar->name, isar->iis, isar->cmsb,
1059                                 isar->clsb);
1060                         isar->write_reg(isar->hw, ISAR_IIA, 0);
1061                 }
1062                 break;
1063         case ISAR_IIS_GSTEV:
1064                 isar->write_reg(isar->hw, ISAR_IIA, 0);
1065                 isar->bstat |= isar->cmsb;
1066                 check_send(isar, isar->cmsb);
1067                 break;
1068         case ISAR_IIS_BSTEV:
1069 #ifdef ERROR_STATISTIC
1070                 ch = sel_bch_isar(isar, isar->iis >> 6);
1071                 if (ch) {
1072                         if (isar->cmsb == BSTEV_TBO)
1073                                 ch->bch.err_tx++;
1074                         if (isar->cmsb == BSTEV_RBO)
1075                                 ch->bch.err_rdo++;
1076                 }
1077 #endif
1078                 pr_debug("%s: Buffer STEV dpath%d msb(%x)\n",
1079                         isar->name, isar->iis>>6, isar->cmsb);
1080                 isar->write_reg(isar->hw, ISAR_IIA, 0);
1081                 break;
1082         case ISAR_IIS_PSTEV:
1083                 ch = sel_bch_isar(isar, isar->iis >> 6);
1084                 if (ch) {
1085                         rcv_mbox(isar, NULL);
1086                         if (ch->bch.state == ISDN_P_B_MODEM_ASYNC)
1087                                 isar_pump_statev_modem(ch, isar->cmsb);
1088                         else if (ch->bch.state == ISDN_P_B_T30_FAX)
1089                                 isar_pump_statev_fax(ch, isar->cmsb);
1090                         else if (ch->bch.state == ISDN_P_B_RAW) {
1091                                 int     tt;
1092                                 tt = isar->cmsb | 0x30;
1093                                 if (tt == 0x3e)
1094                                         tt = '*';
1095                                 else if (tt == 0x3f)
1096                                         tt = '#';
1097                                 else if (tt > '9')
1098                                         tt += 7;
1099                                 tt |= DTMF_TONE_VAL;
1100                                 _queue_data(&ch->bch.ch, PH_CONTROL_IND,
1101                                         MISDN_ID_ANY, sizeof(tt), &tt,
1102                                         GFP_ATOMIC);
1103                         } else
1104                                 pr_debug("%s: ISAR IIS_PSTEV pm %d sta %x\n",
1105                                         isar->name, ch->bch.state,
1106                                         isar->cmsb);
1107                 } else {
1108                         pr_debug("%s: ISAR spurious IIS_PSTEV %x/%x/%x\n",
1109                                 isar->name, isar->iis, isar->cmsb,
1110                                 isar->clsb);
1111                         isar->write_reg(isar->hw, ISAR_IIA, 0);
1112                 }
1113                 break;
1114         case ISAR_IIS_PSTRSP:
1115                 ch = sel_bch_isar(isar, isar->iis >> 6);
1116                 if (ch) {
1117                         rcv_mbox(isar, NULL);
1118                         isar_pump_status_rsp(ch);
1119                 } else {
1120                         pr_debug("%s: ISAR spurious IIS_PSTRSP %x/%x/%x\n",
1121                                 isar->name, isar->iis, isar->cmsb,
1122                                 isar->clsb);
1123                         isar->write_reg(isar->hw, ISAR_IIA, 0);
1124                 }
1125                 break;
1126         case ISAR_IIS_DIAG:
1127         case ISAR_IIS_BSTRSP:
1128         case ISAR_IIS_IOM2RSP:
1129                 rcv_mbox(isar, NULL);
1130                 break;
1131         case ISAR_IIS_INVMSG:
1132                 rcv_mbox(isar, NULL);
1133                 pr_debug("%s: invalid msg his:%x\n", isar->name, isar->cmsb);
1134                 break;
1135         default:
1136                 rcv_mbox(isar, NULL);
1137                 pr_debug("%s: unhandled msg iis(%x) ctrl(%x/%x)\n",
1138                         isar->name, isar->iis, isar->cmsb, isar->clsb);
1139                 break;
1140         }
1141 }
1142 EXPORT_SYMBOL(mISDNisar_irq);
1143
1144 static void
1145 ftimer_handler(unsigned long data)
1146 {
1147         struct isar_ch *ch = (struct isar_ch *)data;
1148
1149         pr_debug("%s: ftimer flags %lx\n", ch->is->name, ch->bch.Flags);
1150         test_and_clear_bit(FLG_FTI_RUN, &ch->bch.Flags);
1151         if (test_and_clear_bit(FLG_LL_CONN, &ch->bch.Flags))
1152                 deliver_status(ch, HW_MOD_CONNECT);
1153 }
1154
1155 static void
1156 setup_pump(struct isar_ch *ch) {
1157         u8 dps = SET_DPS(ch->dpath);
1158         u8 ctrl, param[6];
1159
1160         switch (ch->bch.state) {
1161         case ISDN_P_NONE:
1162         case ISDN_P_B_RAW:
1163         case ISDN_P_B_HDLC:
1164                 send_mbox(ch->is, dps | ISAR_HIS_PUMPCFG, PMOD_BYPASS, 0, NULL);
1165                 break;
1166         case ISDN_P_B_L2DTMF:
1167                 if (test_bit(FLG_DTMFSEND, &ch->bch.Flags)) {
1168                         param[0] = 5; /* TOA 5 db */
1169                         send_mbox(ch->is, dps | ISAR_HIS_PUMPCFG,
1170                                 PMOD_DTMF_TRANS, 1, param);
1171                 } else {
1172                         param[0] = 40; /* REL -46 dbm */
1173                         send_mbox(ch->is, dps | ISAR_HIS_PUMPCFG,
1174                                 PMOD_DTMF, 1, param);
1175                 }
1176         case ISDN_P_B_MODEM_ASYNC:
1177                 ctrl = PMOD_DATAMODEM;
1178                 if (test_bit(FLG_ORIGIN, &ch->bch.Flags)) {
1179                         ctrl |= PCTRL_ORIG;
1180                         param[5] = PV32P6_CTN;
1181                 } else {
1182                         param[5] = PV32P6_ATN;
1183                 }
1184                 param[0] = 6; /* 6 db */
1185                 param[1] = PV32P2_V23R | PV32P2_V22A | PV32P2_V22B |
1186                         PV32P2_V22C | PV32P2_V21 | PV32P2_BEL;
1187                 param[2] = PV32P3_AMOD | PV32P3_V32B | PV32P3_V23B;
1188                 param[3] = PV32P4_UT144;
1189                 param[4] = PV32P5_UT144;
1190                 send_mbox(ch->is, dps | ISAR_HIS_PUMPCFG, ctrl, 6, param);
1191                 break;
1192         case ISDN_P_B_T30_FAX:
1193                 ctrl = PMOD_FAX;
1194                 if (test_bit(FLG_ORIGIN, &ch->bch.Flags)) {
1195                         ctrl |= PCTRL_ORIG;
1196                         param[1] = PFAXP2_CTN;
1197                 } else {
1198                         param[1] = PFAXP2_ATN;
1199                 }
1200                 param[0] = 6; /* 6 db */
1201                 send_mbox(ch->is, dps | ISAR_HIS_PUMPCFG, ctrl, 2, param);
1202                 ch->state = STFAX_NULL;
1203                 ch->newcmd = 0;
1204                 ch->newmod = 0;
1205                 test_and_set_bit(FLG_FTI_RUN, &ch->bch.Flags);
1206                 break;
1207         }
1208         udelay(1000);
1209         send_mbox(ch->is, dps | ISAR_HIS_PSTREQ, 0, 0, NULL);
1210         udelay(1000);
1211 }
1212
1213 static void
1214 setup_sart(struct isar_ch *ch) {
1215         u8 dps = SET_DPS(ch->dpath);
1216         u8 ctrl, param[2] = {0, 0};
1217
1218         switch (ch->bch.state) {
1219         case ISDN_P_NONE:
1220                 send_mbox(ch->is, dps | ISAR_HIS_SARTCFG, SMODE_DISABLE,
1221                         0, NULL);
1222                 break;
1223         case ISDN_P_B_RAW:
1224         case ISDN_P_B_L2DTMF:
1225                 send_mbox(ch->is, dps | ISAR_HIS_SARTCFG, SMODE_BINARY,
1226                         2, param);
1227                 break;
1228         case ISDN_P_B_HDLC:
1229         case ISDN_P_B_T30_FAX:
1230                 send_mbox(ch->is, dps | ISAR_HIS_SARTCFG, SMODE_HDLC,
1231                         1, param);
1232                 break;
1233         case ISDN_P_B_MODEM_ASYNC:
1234                 ctrl = SMODE_V14 | SCTRL_HDMC_BOTH;
1235                 param[0] = S_P1_CHS_8;
1236                 param[1] = S_P2_BFT_DEF;
1237                 send_mbox(ch->is, dps | ISAR_HIS_SARTCFG, ctrl, 2, param);
1238                 break;
1239         }
1240         udelay(1000);
1241         send_mbox(ch->is, dps | ISAR_HIS_BSTREQ, 0, 0, NULL);
1242         udelay(1000);
1243 }
1244
1245 static void
1246 setup_iom2(struct isar_ch *ch) {
1247         u8 dps = SET_DPS(ch->dpath);
1248         u8 cmsb = IOM_CTRL_ENA, msg[5] = {IOM_P1_TXD, 0, 0, 0, 0};
1249
1250         if (ch->bch.nr == 2) {
1251                 msg[1] = 1;
1252                 msg[3] = 1;
1253         }
1254         switch (ch->bch.state) {
1255         case ISDN_P_NONE:
1256                 cmsb = 0;
1257                 /* dummy slot */
1258                 msg[1] = ch->dpath + 2;
1259                 msg[3] = ch->dpath + 2;
1260                 break;
1261         case ISDN_P_B_RAW:
1262         case ISDN_P_B_HDLC:
1263                 break;
1264         case ISDN_P_B_MODEM_ASYNC:
1265         case ISDN_P_B_T30_FAX:
1266                 cmsb |= IOM_CTRL_RCV;
1267         case ISDN_P_B_L2DTMF:
1268                 if (test_bit(FLG_DTMFSEND, &ch->bch.Flags))
1269                         cmsb |= IOM_CTRL_RCV;
1270                 cmsb |= IOM_CTRL_ALAW;
1271                 break;
1272         }
1273         send_mbox(ch->is, dps | ISAR_HIS_IOM2CFG, cmsb, 5, msg);
1274         udelay(1000);
1275         send_mbox(ch->is, dps | ISAR_HIS_IOM2REQ, 0, 0, NULL);
1276         udelay(1000);
1277 }
1278
1279 static int
1280 modeisar(struct isar_ch *ch, u32 bprotocol)
1281 {
1282         /* Here we are selecting the best datapath for requested protocol */
1283         if (ch->bch.state == ISDN_P_NONE) { /* New Setup */
1284                 switch (bprotocol) {
1285                 case ISDN_P_NONE: /* init */
1286                         if (!ch->dpath)
1287                                 /* no init for dpath 0 */
1288                                 return 0;
1289                         test_and_clear_bit(FLG_HDLC, &ch->bch.Flags);
1290                         test_and_clear_bit(FLG_TRANSPARENT, &ch->bch.Flags);
1291                         break;
1292                 case ISDN_P_B_RAW:
1293                 case ISDN_P_B_HDLC:
1294                         /* best is datapath 2 */
1295                         if (!test_and_set_bit(ISAR_DP2_USE, &ch->is->Flags))
1296                                 ch->dpath = 2;
1297                         else if (!test_and_set_bit(ISAR_DP1_USE,
1298                             &ch->is->Flags))
1299                                 ch->dpath = 1;
1300                         else {
1301                                 pr_info("modeisar both pathes in use\n");
1302                                 return -EBUSY;
1303                         }
1304                         if (bprotocol == ISDN_P_B_HDLC)
1305                                 test_and_set_bit(FLG_HDLC, &ch->bch.Flags);
1306                         else
1307                                 test_and_set_bit(FLG_TRANSPARENT,
1308                                         &ch->bch.Flags);
1309                         break;
1310                 case ISDN_P_B_MODEM_ASYNC:
1311                 case ISDN_P_B_T30_FAX:
1312                 case ISDN_P_B_L2DTMF:
1313                         /* only datapath 1 */
1314                         if (!test_and_set_bit(ISAR_DP1_USE, &ch->is->Flags))
1315                                 ch->dpath = 1;
1316                         else {
1317                                 pr_info("%s: ISAR modeisar analog functions"
1318                                         "only with DP1\n", ch->is->name);
1319                                 return -EBUSY;
1320                         }
1321                         break;
1322                 default:
1323                         pr_info("%s: protocol not known %x\n", ch->is->name,
1324                                 bprotocol);
1325                         return -ENOPROTOOPT;
1326                 }
1327         }
1328         pr_debug("%s: ISAR ch%d dp%d protocol %x->%x\n", ch->is->name,
1329                 ch->bch.nr, ch->dpath, ch->bch.state, bprotocol);
1330         ch->bch.state = bprotocol;
1331         setup_pump(ch);
1332         setup_iom2(ch);
1333         setup_sart(ch);
1334         if (ch->bch.state == ISDN_P_NONE) {
1335                 /* Clear resources */
1336                 if (ch->dpath == 1)
1337                         test_and_clear_bit(ISAR_DP1_USE, &ch->is->Flags);
1338                 else if (ch->dpath == 2)
1339                         test_and_clear_bit(ISAR_DP2_USE, &ch->is->Flags);
1340                 ch->dpath = 0;
1341                 ch->is->ctrl(ch->is->hw, HW_DEACT_IND, ch->bch.nr);
1342         } else
1343                 ch->is->ctrl(ch->is->hw, HW_ACTIVATE_IND, ch->bch.nr);
1344         return 0;
1345 }
1346
1347 static void
1348 isar_pump_cmd(struct isar_ch *ch, u32 cmd, u8 para)
1349 {
1350         u8 dps = SET_DPS(ch->dpath);
1351         u8 ctrl = 0, nom = 0, p1 = 0;
1352
1353         pr_debug("%s: isar_pump_cmd %x/%x state(%x)\n",
1354                 ch->is->name, cmd, para, ch->bch.state);
1355         switch (cmd) {
1356         case HW_MOD_FTM:
1357                 if (ch->state == STFAX_READY) {
1358                         p1 = para;
1359                         ctrl = PCTRL_CMD_FTM;
1360                         nom = 1;
1361                         ch->state = STFAX_LINE;
1362                         ch->cmd = ctrl;
1363                         ch->mod = para;
1364                         ch->newmod = 0;
1365                         ch->newcmd = 0;
1366                         ch->try_mod = 3;
1367                 } else if ((ch->state == STFAX_ACTIV) &&
1368                     (ch->cmd == PCTRL_CMD_FTM) && (ch->mod == para))
1369                         deliver_status(ch, HW_MOD_CONNECT);
1370                 else {
1371                         ch->newmod = para;
1372                         ch->newcmd = PCTRL_CMD_FTM;
1373                         nom = 0;
1374                         ctrl = PCTRL_CMD_ESC;
1375                         ch->state = STFAX_ESCAPE;
1376                 }
1377                 break;
1378         case HW_MOD_FTH:
1379                 if (ch->state == STFAX_READY) {
1380                         p1 = para;
1381                         ctrl = PCTRL_CMD_FTH;
1382                         nom = 1;
1383                         ch->state = STFAX_LINE;
1384                         ch->cmd = ctrl;
1385                         ch->mod = para;
1386                         ch->newmod = 0;
1387                         ch->newcmd = 0;
1388                         ch->try_mod = 3;
1389                 } else if ((ch->state == STFAX_ACTIV) &&
1390                     (ch->cmd == PCTRL_CMD_FTH) && (ch->mod == para))
1391                                 deliver_status(ch, HW_MOD_CONNECT);
1392                 else {
1393                         ch->newmod = para;
1394                         ch->newcmd = PCTRL_CMD_FTH;
1395                         nom = 0;
1396                         ctrl = PCTRL_CMD_ESC;
1397                         ch->state = STFAX_ESCAPE;
1398                 }
1399                 break;
1400         case HW_MOD_FRM:
1401                 if (ch->state == STFAX_READY) {
1402                         p1 = para;
1403                         ctrl = PCTRL_CMD_FRM;
1404                         nom = 1;
1405                         ch->state = STFAX_LINE;
1406                         ch->cmd = ctrl;
1407                         ch->mod = para;
1408                         ch->newmod = 0;
1409                         ch->newcmd = 0;
1410                         ch->try_mod = 3;
1411                 } else if ((ch->state == STFAX_ACTIV) &&
1412                     (ch->cmd == PCTRL_CMD_FRM) && (ch->mod == para))
1413                         deliver_status(ch, HW_MOD_CONNECT);
1414                 else {
1415                         ch->newmod = para;
1416                         ch->newcmd = PCTRL_CMD_FRM;
1417                         nom = 0;
1418                         ctrl = PCTRL_CMD_ESC;
1419                         ch->state = STFAX_ESCAPE;
1420                 }
1421                 break;
1422         case HW_MOD_FRH:
1423                 if (ch->state == STFAX_READY) {
1424                         p1 = para;
1425                         ctrl = PCTRL_CMD_FRH;
1426                         nom = 1;
1427                         ch->state = STFAX_LINE;
1428                         ch->cmd = ctrl;
1429                         ch->mod = para;
1430                         ch->newmod = 0;
1431                         ch->newcmd = 0;
1432                         ch->try_mod = 3;
1433                 } else if ((ch->state == STFAX_ACTIV) &&
1434                     (ch->cmd == PCTRL_CMD_FRH) && (ch->mod == para))
1435                         deliver_status(ch, HW_MOD_CONNECT);
1436                 else {
1437                         ch->newmod = para;
1438                         ch->newcmd = PCTRL_CMD_FRH;
1439                         nom = 0;
1440                         ctrl = PCTRL_CMD_ESC;
1441                         ch->state = STFAX_ESCAPE;
1442                 }
1443                 break;
1444         case PCTRL_CMD_TDTMF:
1445                 p1 = para;
1446                 nom = 1;
1447                 ctrl = PCTRL_CMD_TDTMF;
1448                 break;
1449         }
1450         if (ctrl)
1451                 send_mbox(ch->is, dps | ISAR_HIS_PUMPCTRL, ctrl, nom, &p1);
1452 }
1453
1454 static void
1455 isar_setup(struct isar_hw *isar)
1456 {
1457         u8 msg;
1458         int i;
1459
1460         /* Dpath 1, 2 */
1461         msg = 61;
1462         for (i = 0; i < 2; i++) {
1463                 /* Buffer Config */
1464                 send_mbox(isar, (i ? ISAR_HIS_DPS2 : ISAR_HIS_DPS1) |
1465                         ISAR_HIS_P12CFG, 4, 1, &msg);
1466                 isar->ch[i].mml = msg;
1467                 isar->ch[i].bch.state = 0;
1468                 isar->ch[i].dpath = i + 1;
1469                 modeisar(&isar->ch[i], ISDN_P_NONE);
1470         }
1471 }
1472
1473 static int
1474 isar_l2l1(struct mISDNchannel *ch, struct sk_buff *skb)
1475 {
1476         struct bchannel *bch = container_of(ch, struct bchannel, ch);
1477         struct isar_ch *ich = container_of(bch, struct isar_ch, bch);
1478         int ret = -EINVAL;
1479         struct mISDNhead *hh = mISDN_HEAD_P(skb);
1480         u32 id, *val;
1481         u_long flags;
1482
1483         switch (hh->prim) {
1484         case PH_DATA_REQ:
1485                 spin_lock_irqsave(ich->is->hwlock, flags);
1486                 ret = bchannel_senddata(bch, skb);
1487                 if (ret > 0) { /* direct TX */
1488                         id = hh->id; /* skb can be freed */
1489                         ret = 0;
1490                         isar_fill_fifo(ich);
1491                         spin_unlock_irqrestore(ich->is->hwlock, flags);
1492                         if (!test_bit(FLG_TRANSPARENT, &bch->Flags))
1493                                 queue_ch_frame(ch, PH_DATA_CNF, id, NULL);
1494                 } else
1495                         spin_unlock_irqrestore(ich->is->hwlock, flags);
1496                 return ret;
1497         case PH_ACTIVATE_REQ:
1498                 spin_lock_irqsave(ich->is->hwlock, flags);
1499                 if (!test_and_set_bit(FLG_ACTIVE, &bch->Flags))
1500                         ret = modeisar(ich, ch->protocol);
1501                 else
1502                         ret = 0;
1503                 spin_unlock_irqrestore(ich->is->hwlock, flags);
1504                 if (!ret)
1505                         _queue_data(ch, PH_ACTIVATE_IND, MISDN_ID_ANY, 0,
1506                                 NULL, GFP_KERNEL);
1507                 break;
1508         case PH_DEACTIVATE_REQ:
1509                 spin_lock_irqsave(ich->is->hwlock, flags);
1510                 mISDN_clear_bchannel(bch);
1511                 modeisar(ich, ISDN_P_NONE);
1512                 spin_unlock_irqrestore(ich->is->hwlock, flags);
1513                 _queue_data(ch, PH_DEACTIVATE_IND, MISDN_ID_ANY, 0,
1514                         NULL, GFP_KERNEL);
1515                 ret = 0;
1516                 break;
1517         case PH_CONTROL_REQ:
1518                 val = (u32 *)skb->data;
1519                 pr_debug("%s: PH_CONTROL | REQUEST %x/%x\n", ich->is->name,
1520                         hh->id, *val);
1521                 if ((hh->id == 0) && ((*val & ~DTMF_TONE_MASK) ==
1522                     DTMF_TONE_VAL)) {
1523                         if (bch->state == ISDN_P_B_L2DTMF) {
1524                                 char tt = *val & DTMF_TONE_MASK;
1525
1526                                 if (tt == '*')
1527                                         tt = 0x1e;
1528                                 else if (tt == '#')
1529                                         tt = 0x1f;
1530                                 else if (tt > '9')
1531                                         tt -= 7;
1532                                 tt &= 0x1f;
1533                                 spin_lock_irqsave(ich->is->hwlock, flags);
1534                                 isar_pump_cmd(ich, PCTRL_CMD_TDTMF, tt);
1535                                 spin_unlock_irqrestore(ich->is->hwlock, flags);
1536                         } else {
1537                                 pr_info("%s: DTMF send wrong protocol %x\n",
1538                                         __func__, bch->state);
1539                                 return -EINVAL;
1540                         }
1541                 } else if ((hh->id == HW_MOD_FRM) || (hh->id == HW_MOD_FRH) ||
1542                     (hh->id == HW_MOD_FTM) || (hh->id == HW_MOD_FTH)) {
1543                         for (id = 0; id < FAXMODCNT; id++)
1544                                 if (faxmodulation[id] == *val)
1545                                         break;
1546                         if ((FAXMODCNT > id) &&
1547                             test_bit(FLG_INITIALIZED, &bch->Flags)) {
1548                                 pr_debug("%s: isar: new mod\n", ich->is->name);
1549                                 isar_pump_cmd(ich, hh->id, *val);
1550                                 ret = 0;
1551                         } else {
1552                                 pr_info("%s: wrong modulation\n",
1553                                         ich->is->name);
1554                                 ret = -EINVAL;
1555                         }
1556                 } else if (hh->id == HW_MOD_LASTDATA)
1557                         test_and_set_bit(FLG_DLEETX, &bch->Flags);
1558                 else {
1559                         pr_info("%s: unknown PH_CONTROL_REQ %x\n",
1560                                 ich->is->name, hh->id);
1561                         ret = -EINVAL;
1562                 }
1563         default:
1564                 pr_info("%s: %s unknown prim(%x,%x)\n",
1565                         ich->is->name, __func__, hh->prim, hh->id);
1566                 ret = -EINVAL;
1567         }
1568         if (!ret)
1569                 dev_kfree_skb(skb);
1570         return ret;
1571 }
1572
1573 static int
1574 channel_bctrl(struct bchannel *bch, struct mISDN_ctrl_req *cq)
1575 {
1576         int     ret = 0;
1577
1578         switch (cq->op) {
1579         case MISDN_CTRL_GETOP:
1580                 cq->op = 0;
1581                 break;
1582         /* Nothing implemented yet */
1583         case MISDN_CTRL_FILL_EMPTY:
1584         default:
1585                 pr_info("%s: unknown Op %x\n", __func__, cq->op);
1586                 ret = -EINVAL;
1587                 break;
1588         }
1589         return ret;
1590 }
1591
1592 static int
1593 isar_bctrl(struct mISDNchannel *ch, u32 cmd, void *arg)
1594 {
1595         struct bchannel *bch = container_of(ch, struct bchannel, ch);
1596         struct isar_ch *ich = container_of(bch, struct isar_ch, bch);
1597         int ret = -EINVAL;
1598         u_long flags;
1599
1600         pr_debug("%s: %s cmd:%x %p\n", ich->is->name, __func__, cmd, arg);
1601         switch (cmd) {
1602         case CLOSE_CHANNEL:
1603                 test_and_clear_bit(FLG_OPEN, &bch->Flags);
1604                 if (test_bit(FLG_ACTIVE, &bch->Flags)) {
1605                         spin_lock_irqsave(ich->is->hwlock, flags);
1606                         mISDN_freebchannel(bch);
1607                         modeisar(ich, ISDN_P_NONE);
1608                         spin_unlock_irqrestore(ich->is->hwlock, flags);
1609                 } else {
1610                         skb_queue_purge(&bch->rqueue);
1611                         bch->rcount = 0;
1612                 }
1613                 ch->protocol = ISDN_P_NONE;
1614                 ch->peer = NULL;
1615                 module_put(ich->is->owner);
1616                 ret = 0;
1617                 break;
1618         case CONTROL_CHANNEL:
1619                 ret = channel_bctrl(bch, arg);
1620                 break;
1621         default:
1622                 pr_info("%s: %s unknown prim(%x)\n",
1623                         ich->is->name, __func__, cmd);
1624         }
1625         return ret;
1626 }
1627
1628 static void
1629 free_isar(struct isar_hw *isar)
1630 {
1631         modeisar(&isar->ch[0], ISDN_P_NONE);
1632         modeisar(&isar->ch[1], ISDN_P_NONE);
1633         del_timer(&isar->ch[0].ftimer);
1634         del_timer(&isar->ch[1].ftimer);
1635         test_and_clear_bit(FLG_INITIALIZED, &isar->ch[0].bch.Flags);
1636         test_and_clear_bit(FLG_INITIALIZED, &isar->ch[1].bch.Flags);
1637 }
1638
1639 static int
1640 init_isar(struct isar_hw *isar)
1641 {
1642         int     cnt = 3;
1643
1644         while (cnt--) {
1645                 isar->version = ISARVersion(isar);
1646                 if (isar->ch[0].bch.debug & DEBUG_HW)
1647                         pr_notice("%s: Testing version %d (%d time)\n",
1648                                 isar->name, isar->version, 3 - cnt);
1649                 if (isar->version == 1)
1650                         break;
1651                 isar->ctrl(isar->hw, HW_RESET_REQ, 0);
1652         }
1653         if (isar->version != 1)
1654                 return -EINVAL;
1655         isar->ch[0].ftimer.function = &ftimer_handler;
1656         isar->ch[0].ftimer.data = (long)&isar->ch[0];
1657         init_timer(&isar->ch[0].ftimer);
1658         test_and_set_bit(FLG_INITIALIZED, &isar->ch[0].bch.Flags);
1659         isar->ch[1].ftimer.function = &ftimer_handler;
1660         isar->ch[1].ftimer.data = (long)&isar->ch[1];
1661         init_timer(&isar->ch[1].ftimer);
1662         test_and_set_bit(FLG_INITIALIZED, &isar->ch[1].bch.Flags);
1663         return 0;
1664 }
1665
1666 static int
1667 isar_open(struct isar_hw *isar, struct channel_req *rq)
1668 {
1669         struct bchannel         *bch;
1670
1671         if (rq->adr.channel > 2)
1672                 return -EINVAL;
1673         if (rq->protocol == ISDN_P_NONE)
1674                 return -EINVAL;
1675         bch = &isar->ch[rq->adr.channel - 1].bch;
1676         if (test_and_set_bit(FLG_OPEN, &bch->Flags))
1677                 return -EBUSY; /* b-channel can be only open once */
1678         test_and_clear_bit(FLG_FILLEMPTY, &bch->Flags);
1679         bch->ch.protocol = rq->protocol;
1680         rq->ch = &bch->ch;
1681         return 0;
1682 }
1683
1684 u32
1685 mISDNisar_init(struct isar_hw *isar, void *hw)
1686 {
1687         u32 ret, i;
1688
1689         isar->hw = hw;
1690         for (i = 0; i < 2; i++) {
1691                 isar->ch[i].bch.nr = i + 1;
1692                 mISDN_initbchannel(&isar->ch[i].bch, MAX_DATA_MEM);
1693                 isar->ch[i].bch.ch.nr = i + 1;
1694                 isar->ch[i].bch.ch.send = &isar_l2l1;
1695                 isar->ch[i].bch.ch.ctrl = isar_bctrl;
1696                 isar->ch[i].bch.hw = hw;
1697                 isar->ch[i].is = isar;
1698         }
1699
1700         isar->init = &init_isar;
1701         isar->release = &free_isar;
1702         isar->firmware = &load_firmware;
1703         isar->open = &isar_open;
1704
1705         ret =   (1 << (ISDN_P_B_RAW & ISDN_P_B_MASK)) |
1706                 (1 << (ISDN_P_B_HDLC & ISDN_P_B_MASK)) |
1707                 (1 << (ISDN_P_B_L2DTMF & ISDN_P_B_MASK)) |
1708                 (1 << (ISDN_P_B_MODEM_ASYNC & ISDN_P_B_MASK)) |
1709                 (1 << (ISDN_P_B_T30_FAX & ISDN_P_B_MASK));
1710
1711         return ret;
1712 }
1713 EXPORT_SYMBOL(mISDNisar_init);
1714
1715 static int isar_mod_init(void)
1716 {
1717         pr_notice("mISDN: ISAR driver Rev. %s\n", ISAR_REV);
1718         return 0;
1719 }
1720
1721 static void isar_mod_cleanup(void)
1722 {
1723         pr_notice("mISDN: ISAR module unloaded\n");
1724 }
1725 module_init(isar_mod_init);
1726 module_exit(isar_mod_cleanup);