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treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 176
[linux-block.git] / drivers / isdn / hardware / mISDN / mISDNisar.c
CommitLineData
82c29810 1// SPDX-License-Identifier: GPL-2.0-only
da2272c9
KK		 2/*
3 * mISDNisar.c ISAR (Siemens PSB 7110) specific functions
4 *
5 * Author Karsten Keil (keil@isdn4linux.de)
6 *
7 * Copyright 2009 by Karsten Keil <keil@isdn4linux.de>
da2272c9
KK		 8 */
9
10/* define this to enable static debug messages, if you kernel supports
11 * dynamic debugging, you should use debugfs for this
12 */
13/* #define DEBUG */
14
5a0e3ad6 15#include <linux/gfp.h>
da2272c9
KK		 16#include <linux/delay.h>
17#include <linux/vmalloc.h>
18#include <linux/mISDNhw.h>
07a97fe8 19#include <linux/module.h>
da2272c9
KK		 20#include "isar.h"
21
22#define ISAR_REV "2.1"
23
24MODULE_AUTHOR("Karsten Keil");
25MODULE_LICENSE("GPL v2");
26MODULE_VERSION(ISAR_REV);
27
28#define DEBUG_HW_FIRMWARE_FIFO 0x10000
29
30static const u8 faxmodulation_s[] = "3,24,48,72,73,74,96,97,98,121,122,145,146";
31static const u8 faxmodulation[] = {3, 24, 48, 72, 73, 74, 96, 97, 98, 121,
475be4d8 32 122, 145, 146};
da2272c9
KK		 33#define FAXMODCNT 13
34
35static void isar_setup(struct isar_hw *);
36
37static inline int
38waitforHIA(struct isar_hw *isar, int timeout)
39{
40 int t = timeout;
41 u8 val = isar->read_reg(isar->hw, ISAR_HIA);
42
43 while ((val & 1) && t) {
44 udelay(1);
45 t--;
46 val = isar->read_reg(isar->hw, ISAR_HIA);
47 }
48 pr_debug("%s: HIA after %dus\n", isar->name, timeout - t);
49 return timeout;
50}
51
52/*
53 * send msg to ISAR mailbox
54 * if msg is NULL use isar->buf
55 */
56static int
57send_mbox(struct isar_hw *isar, u8 his, u8 creg, u8 len, u8 *msg)
58{
59 if (!waitforHIA(isar, 1000))
60 return 0;
61 pr_debug("send_mbox(%02x,%02x,%d)\n", his, creg, len);
62 isar->write_reg(isar->hw, ISAR_CTRL_H, creg);
63 isar->write_reg(isar->hw, ISAR_CTRL_L, len);
64 isar->write_reg(isar->hw, ISAR_WADR, 0);
65 if (!msg)
66 msg = isar->buf;
67 if (msg && len) {
68 isar->write_fifo(isar->hw, ISAR_MBOX, msg, len);
69 if (isar->ch[0].bch.debug & DEBUG_HW_BFIFO) {
70 int l = 0;
71
72 while (l < (int)len) {
73 hex_dump_to_buffer(msg + l, len - l, 32, 1,
475be4d8 74 isar->log, 256, 1);
da2272c9 75 pr_debug("%s: %s %02x: %s\n", isar->name,
475be4d8 76 __func__, l, isar->log);
da2272c9
KK		 77 l += 32;
78 }
79 }
80 }
81 isar->write_reg(isar->hw, ISAR_HIS, his);
82 waitforHIA(isar, 1000);
83 return 1;
84}
85
86/*
87 * receive message from ISAR mailbox
88 * if msg is NULL use isar->buf
89 */
90static void
91rcv_mbox(struct isar_hw *isar, u8 *msg)
92{
93 if (!msg)
94 msg = isar->buf;
95 isar->write_reg(isar->hw, ISAR_RADR, 0);
96 if (msg && isar->clsb) {
97 isar->read_fifo(isar->hw, ISAR_MBOX, msg, isar->clsb);
98 if (isar->ch[0].bch.debug & DEBUG_HW_BFIFO) {
99 int l = 0;
100
101 while (l < (int)isar->clsb) {
102 hex_dump_to_buffer(msg + l, isar->clsb - l, 32,
475be4d8 103 1, isar->log, 256, 1);
da2272c9 104 pr_debug("%s: %s %02x: %s\n", isar->name,
475be4d8 105 __func__, l, isar->log);
da2272c9
KK		 106 l += 32;
107 }
108 }
109 }
110 isar->write_reg(isar->hw, ISAR_IIA, 0);
111}
112
113static inline void
114get_irq_infos(struct isar_hw *isar)
115{
116 isar->iis = isar->read_reg(isar->hw, ISAR_IIS);
117 isar->cmsb = isar->read_reg(isar->hw, ISAR_CTRL_H);
118 isar->clsb = isar->read_reg(isar->hw, ISAR_CTRL_L);
119 pr_debug("%s: rcv_mbox(%02x,%02x,%d)\n", isar->name,
475be4d8 120 isar->iis, isar->cmsb, isar->clsb);
da2272c9
KK		 121}
122
123/*
124 * poll answer message from ISAR mailbox
125 * should be used only with ISAR IRQs disabled before DSP was started
126 *
127 */
128static int
129poll_mbox(struct isar_hw *isar, int maxdelay)
130{
131 int t = maxdelay;
132 u8 irq;
133
134 irq = isar->read_reg(isar->hw, ISAR_IRQBIT);
135 while (t && !(irq & ISAR_IRQSTA)) {
136 udelay(1);
137 t--;
138 }
139 if (t) {
140 get_irq_infos(isar);
141 rcv_mbox(isar, NULL);
142 }
143 pr_debug("%s: pulled %d bytes after %d us\n",
475be4d8 144 isar->name, isar->clsb, maxdelay - t);
da2272c9
KK		 145 return t;
146}
147
148static int
149ISARVersion(struct isar_hw *isar)
150{
151 int ver;
152
153 /* disable ISAR IRQ */
154 isar->write_reg(isar->hw, ISAR_IRQBIT, 0);
155 isar->buf[0] = ISAR_MSG_HWVER;
156 isar->buf[1] = 0;
157 isar->buf[2] = 1;
158 if (!send_mbox(isar, ISAR_HIS_VNR, 0, 3, NULL))
159 return -1;
160 if (!poll_mbox(isar, 1000))
161 return -2;
162 if (isar->iis == ISAR_IIS_VNR) {
163 if (isar->clsb == 1) {
164 ver = isar->buf[0] & 0xf;
165 return ver;
166 }
167 return -3;
168 }
169 return -4;
170}
171
172static int
173load_firmware(struct isar_hw *isar, const u8 *buf, int size)
174{
175 u32 saved_debug = isar->ch[0].bch.debug;
176 int ret, cnt;
177 u8 nom, noc;
178 u16 left, val, *sp = (u16 *)buf;
179 u8 *mp;
180 u_long flags;
181
182 struct {
183 u16 sadr;
184 u16 len;
185 u16 d_key;
186 } blk_head;
187
188 if (1 != isar->version) {
189 pr_err("%s: ISAR wrong version %d firmware download aborted\n",
475be4d8 190 isar->name, isar->version);
da2272c9
KK		 191 return -EINVAL;
192 }
193 if (!(saved_debug & DEBUG_HW_FIRMWARE_FIFO))
194 isar->ch[0].bch.debug &= ~DEBUG_HW_BFIFO;
195 pr_debug("%s: load firmware %d words (%d bytes)\n",
475be4d8 196 isar->name, size / 2, size);
da2272c9
KK		 197 cnt = 0;
198 size /= 2;
199 /* disable ISAR IRQ */
200 spin_lock_irqsave(isar->hwlock, flags);
201 isar->write_reg(isar->hw, ISAR_IRQBIT, 0);
202 spin_unlock_irqrestore(isar->hwlock, flags);
203 while (cnt < size) {
204 blk_head.sadr = le16_to_cpu(*sp++);
205 blk_head.len = le16_to_cpu(*sp++);
206 blk_head.d_key = le16_to_cpu(*sp++);
207 cnt += 3;
208 pr_debug("ISAR firmware block (%#x,%d,%#x)\n",
475be4d8 209 blk_head.sadr, blk_head.len, blk_head.d_key & 0xff);
da2272c9
KK		 210 left = blk_head.len;
211 if (cnt + left > size) {
212 pr_info("%s: firmware error have %d need %d words\n",
213 isar->name, size, cnt + left);
214 ret = -EINVAL;
215 goto reterrflg;
216 }
217 spin_lock_irqsave(isar->hwlock, flags);
218 if (!send_mbox(isar, ISAR_HIS_DKEY, blk_head.d_key & 0xff,
475be4d8 219 0, NULL)) {
da2272c9
KK		 220 pr_info("ISAR send_mbox dkey failed\n");
221 ret = -ETIME;
222 goto reterror;
223 }
224 if (!poll_mbox(isar, 1000)) {
225 pr_warning("ISAR poll_mbox dkey failed\n");
226 ret = -ETIME;
227 goto reterror;
228 }
229 spin_unlock_irqrestore(isar->hwlock, flags);
230 if ((isar->iis != ISAR_IIS_DKEY) || isar->cmsb || isar->clsb) {
231 pr_info("ISAR wrong dkey response (%x,%x,%x)\n",
232 isar->iis, isar->cmsb, isar->clsb);
233 ret = 1;
234 goto reterrflg;
235 }
236 while (left > 0) {
237 if (left > 126)
238 noc = 126;
239 else
240 noc = left;
241 nom = (2 * noc) + 3;
242 mp = isar->buf;
243 /* the ISAR is big endian */
244 *mp++ = blk_head.sadr >> 8;
245 *mp++ = blk_head.sadr & 0xFF;
246 left -= noc;
247 cnt += noc;
248 *mp++ = noc;
249 pr_debug("%s: load %3d words at %04x\n", isar->name,
475be4d8 250 noc, blk_head.sadr);
da2272c9
KK		 251 blk_head.sadr += noc;
252 while (noc) {
253 val = le16_to_cpu(*sp++);
254 *mp++ = val >> 8;
ad65ffd1 255 *mp++ = val & 0xFF;
da2272c9
KK		 256 noc--;
257 }
258 spin_lock_irqsave(isar->hwlock, flags);
259 if (!send_mbox(isar, ISAR_HIS_FIRM, 0, nom, NULL)) {
260 pr_info("ISAR send_mbox prog failed\n");
261 ret = -ETIME;
262 goto reterror;
263 }
264 if (!poll_mbox(isar, 1000)) {
265 pr_info("ISAR poll_mbox prog failed\n");
266 ret = -ETIME;
267 goto reterror;
268 }
269 spin_unlock_irqrestore(isar->hwlock, flags);
270 if ((isar->iis != ISAR_IIS_FIRM) ||
271 isar->cmsb || isar->clsb) {
272 pr_info("ISAR wrong prog response (%x,%x,%x)\n",
273 isar->iis, isar->cmsb, isar->clsb);
274 ret = -EIO;
275 goto reterrflg;
276 }
277 }
278 pr_debug("%s: ISAR firmware block %d words loaded\n",
475be4d8 279 isar->name, blk_head.len);
da2272c9
KK		 280 }
281 isar->ch[0].bch.debug = saved_debug;
282 /* 10ms delay */
283 cnt = 10;
284 while (cnt--)
285 mdelay(1);
286 isar->buf[0] = 0xff;
287 isar->buf[1] = 0xfe;
288 isar->bstat = 0;
289 spin_lock_irqsave(isar->hwlock, flags);
290 if (!send_mbox(isar, ISAR_HIS_STDSP, 0, 2, NULL)) {
291 pr_info("ISAR send_mbox start dsp failed\n");
292 ret = -ETIME;
293 goto reterror;
294 }
295 if (!poll_mbox(isar, 1000)) {
296 pr_info("ISAR poll_mbox start dsp failed\n");
297 ret = -ETIME;
298 goto reterror;
299 }
300 if ((isar->iis != ISAR_IIS_STDSP) || isar->cmsb || isar->clsb) {
301 pr_info("ISAR wrong start dsp response (%x,%x,%x)\n",
302 isar->iis, isar->cmsb, isar->clsb);
303 ret = -EIO;
304 goto reterror;
305 } else
306 pr_debug("%s: ISAR start dsp success\n", isar->name);
307
308 /* NORMAL mode entered */
309 /* Enable IRQs of ISAR */
310 isar->write_reg(isar->hw, ISAR_IRQBIT, ISAR_IRQSTA);
311 spin_unlock_irqrestore(isar->hwlock, flags);
312 cnt = 1000; /* max 1s */
313 while ((!isar->bstat) && cnt) {
314 mdelay(1);
315 cnt--;
316 }
317 if (!cnt) {
318 pr_info("ISAR no general status event received\n");
319 ret = -ETIME;
320 goto reterrflg;
321 } else
322 pr_debug("%s: ISAR general status event %x\n",
475be4d8 323 isar->name, isar->bstat);
da2272c9
KK		 324 /* 10ms delay */
325 cnt = 10;
326 while (cnt--)
327 mdelay(1);
328 isar->iis = 0;
329 spin_lock_irqsave(isar->hwlock, flags);
330 if (!send_mbox(isar, ISAR_HIS_DIAG, ISAR_CTRL_STST, 0, NULL)) {
331 pr_info("ISAR send_mbox self tst failed\n");
332 ret = -ETIME;
333 goto reterror;
334 }
335 spin_unlock_irqrestore(isar->hwlock, flags);
336 cnt = 10000; /* max 100 ms */
337 while ((isar->iis != ISAR_IIS_DIAG) && cnt) {
338 udelay(10);
339 cnt--;
340 }
341 mdelay(1);
342 if (!cnt) {
343 pr_info("ISAR no self tst response\n");
344 ret = -ETIME;
345 goto reterrflg;
346 }
347 if ((isar->cmsb == ISAR_CTRL_STST) && (isar->clsb == 1)
348 && (isar->buf[0] == 0))
349 pr_debug("%s: ISAR selftest OK\n", isar->name);
350 else {
351 pr_info("ISAR selftest not OK %x/%x/%x\n",
352 isar->cmsb, isar->clsb, isar->buf[0]);
353 ret = -EIO;
354 goto reterrflg;
355 }
356 spin_lock_irqsave(isar->hwlock, flags);
357 isar->iis = 0;
358 if (!send_mbox(isar, ISAR_HIS_DIAG, ISAR_CTRL_SWVER, 0, NULL)) {
359 pr_info("ISAR RQST SVN failed\n");
360 ret = -ETIME;
361 goto reterror;
362 }
363 spin_unlock_irqrestore(isar->hwlock, flags);
364 cnt = 30000; /* max 300 ms */
365 while ((isar->iis != ISAR_IIS_DIAG) && cnt) {
366 udelay(10);
367 cnt--;
368 }
369 mdelay(1);
370 if (!cnt) {
371 pr_info("ISAR no SVN response\n");
372 ret = -ETIME;
373 goto reterrflg;
374 } else {
375 if ((isar->cmsb == ISAR_CTRL_SWVER) && (isar->clsb == 1)) {
376 pr_notice("%s: ISAR software version %#x\n",
475be4d8 377 isar->name, isar->buf[0]);
da2272c9
KK		 378 } else {
379 pr_info("%s: ISAR wrong swver response (%x,%x)"
380 " cnt(%d)\n", isar->name, isar->cmsb,
381 isar->clsb, cnt);
382 ret = -EIO;
383 goto reterrflg;
384 }
385 }
386 spin_lock_irqsave(isar->hwlock, flags);
387 isar_setup(isar);
388 spin_unlock_irqrestore(isar->hwlock, flags);
389 ret = 0;
390reterrflg:
391 spin_lock_irqsave(isar->hwlock, flags);
392reterror:
393 isar->ch[0].bch.debug = saved_debug;
394 if (ret)
395 /* disable ISAR IRQ */
396 isar->write_reg(isar->hw, ISAR_IRQBIT, 0);
397 spin_unlock_irqrestore(isar->hwlock, flags);
398 return ret;
399}
400
401static inline void
402deliver_status(struct isar_ch *ch, int status)
403{
404 pr_debug("%s: HL->LL FAXIND %x\n", ch->is->name, status);
405 _queue_data(&ch->bch.ch, PH_CONTROL_IND, status, 0, NULL, GFP_ATOMIC);
406}
407
408static inline void
409isar_rcv_frame(struct isar_ch *ch)
410{
7206e659
KK		 411 u8 *ptr;
412 int maxlen;
da2272c9
KK		 413
414 if (!ch->is->clsb) {
415 pr_debug("%s; ISAR zero len frame\n", ch->is->name);
416 ch->is->write_reg(ch->is->hw, ISAR_IIA, 0);
417 return;
418 }
c27b46e7
KK		 419 if (test_bit(FLG_RX_OFF, &ch->bch.Flags)) {
420 ch->bch.dropcnt += ch->is->clsb;
421 ch->is->write_reg(ch->is->hw, ISAR_IIA, 0);
422 return;
423 }
da2272c9
KK		 424 switch (ch->bch.state) {
425 case ISDN_P_NONE:
426 pr_debug("%s: ISAR protocol 0 spurious IIS_RDATA %x/%x/%x\n",
475be4d8 427 ch->is->name, ch->is->iis, ch->is->cmsb, ch->is->clsb);
da2272c9
KK		 428 ch->is->write_reg(ch->is->hw, ISAR_IIA, 0);
429 break;
430 case ISDN_P_B_RAW:
431 case ISDN_P_B_L2DTMF:
432 case ISDN_P_B_MODEM_ASYNC:
7206e659
KK		 433 maxlen = bchannel_get_rxbuf(&ch->bch, ch->is->clsb);
434 if (maxlen < 0) {
435 pr_warning("%s.B%d: No bufferspace for %d bytes\n",
436 ch->is->name, ch->bch.nr, ch->is->clsb);
437 ch->is->write_reg(ch->is->hw, ISAR_IIA, 0);
438 break;
da2272c9
KK		 439 }
440 rcv_mbox(ch->is, skb_put(ch->bch.rx_skb, ch->is->clsb));
034005a0 441 recv_Bchannel(&ch->bch, 0, false);
da2272c9
KK		 442 break;
443 case ISDN_P_B_HDLC:
7206e659
KK		 444 maxlen = bchannel_get_rxbuf(&ch->bch, ch->is->clsb);
445 if (maxlen < 0) {
446 pr_warning("%s.B%d: No bufferspace for %d bytes\n",
447 ch->is->name, ch->bch.nr, ch->is->clsb);
da2272c9 448 ch->is->write_reg(ch->is->hw, ISAR_IIA, 0);
da2272c9
KK		 449 break;
450 }
451 if (ch->is->cmsb & HDLC_ERROR) {
452 pr_debug("%s: ISAR frame error %x len %d\n",
475be4d8 453 ch->is->name, ch->is->cmsb, ch->is->clsb);
da2272c9
KK		 454#ifdef ERROR_STATISTIC
455 if (ch->is->cmsb & HDLC_ERR_RER)
456 ch->bch.err_inv++;
457 if (ch->is->cmsb & HDLC_ERR_CER)
458 ch->bch.err_crc++;
459#endif
460 skb_trim(ch->bch.rx_skb, 0);
461 ch->is->write_reg(ch->is->hw, ISAR_IIA, 0);
462 break;
463 }
464 if (ch->is->cmsb & HDLC_FSD)
465 skb_trim(ch->bch.rx_skb, 0);
466 ptr = skb_put(ch->bch.rx_skb, ch->is->clsb);
467 rcv_mbox(ch->is, ptr);
468 if (ch->is->cmsb & HDLC_FED) {
469 if (ch->bch.rx_skb->len < 3) { /* last 2 are the FCS */
470 pr_debug("%s: ISAR frame to short %d\n",
475be4d8 471 ch->is->name, ch->bch.rx_skb->len);
da2272c9
KK		 472 skb_trim(ch->bch.rx_skb, 0);
473 break;
474 }
475 skb_trim(ch->bch.rx_skb, ch->bch.rx_skb->len - 2);
034005a0 476 recv_Bchannel(&ch->bch, 0, false);
da2272c9
KK		 477 }
478 break;
479 case ISDN_P_B_T30_FAX:
480 if (ch->state != STFAX_ACTIV) {
481 pr_debug("%s: isar_rcv_frame: not ACTIV\n",
475be4d8 482 ch->is->name);
da2272c9
KK		 483 ch->is->write_reg(ch->is->hw, ISAR_IIA, 0);
484 if (ch->bch.rx_skb)
485 skb_trim(ch->bch.rx_skb, 0);
486 break;
487 }
488 if (!ch->bch.rx_skb) {
489 ch->bch.rx_skb = mI_alloc_skb(ch->bch.maxlen,
475be4d8 490 GFP_ATOMIC);
da2272c9
KK		 491 if (unlikely(!ch->bch.rx_skb)) {
492 pr_info("%s: B receive out of memory\n",
493 __func__);
494 ch->is->write_reg(ch->is->hw, ISAR_IIA, 0);
495 break;
496 }
497 }
498 if (ch->cmd == PCTRL_CMD_FRM) {
499 rcv_mbox(ch->is, skb_put(ch->bch.rx_skb, ch->is->clsb));
500 pr_debug("%s: isar_rcv_frame: %d\n",
475be4d8 501 ch->is->name, ch->bch.rx_skb->len);
da2272c9
KK		 502 if (ch->is->cmsb & SART_NMD) { /* ABORT */
503 pr_debug("%s: isar_rcv_frame: no more data\n",
475be4d8 504 ch->is->name);
da2272c9
KK		 505 ch->is->write_reg(ch->is->hw, ISAR_IIA, 0);
506 send_mbox(ch->is, SET_DPS(ch->dpath) |
475be4d8
JP		 507 ISAR_HIS_PUMPCTRL, PCTRL_CMD_ESC,
508 0, NULL);
da2272c9
KK		 509 ch->state = STFAX_ESCAPE;
510 /* set_skb_flag(skb, DF_NOMOREDATA); */
511 }
034005a0 512 recv_Bchannel(&ch->bch, 0, false);
da2272c9
KK		 513 if (ch->is->cmsb & SART_NMD)
514 deliver_status(ch, HW_MOD_NOCARR);
515 break;
516 }
517 if (ch->cmd != PCTRL_CMD_FRH) {
518 pr_debug("%s: isar_rcv_frame: unknown fax mode %x\n",
475be4d8 519 ch->is->name, ch->cmd);
da2272c9
KK		 520 ch->is->write_reg(ch->is->hw, ISAR_IIA, 0);
521 if (ch->bch.rx_skb)
522 skb_trim(ch->bch.rx_skb, 0);
523 break;
524 }
525 /* PCTRL_CMD_FRH */
526 if ((ch->bch.rx_skb->len + ch->is->clsb) >
527 (ch->bch.maxlen + 2)) {
528 pr_info("%s: %s incoming packet too large\n",
529 ch->is->name, __func__);
530 ch->is->write_reg(ch->is->hw, ISAR_IIA, 0);
531 skb_trim(ch->bch.rx_skb, 0);
532 break;
533 } else if (ch->is->cmsb & HDLC_ERROR) {
534 pr_info("%s: ISAR frame error %x len %d\n",
535 ch->is->name, ch->is->cmsb, ch->is->clsb);
536 skb_trim(ch->bch.rx_skb, 0);
537 ch->is->write_reg(ch->is->hw, ISAR_IIA, 0);
538 break;
539 }
540 if (ch->is->cmsb & HDLC_FSD)
541 skb_trim(ch->bch.rx_skb, 0);
542 ptr = skb_put(ch->bch.rx_skb, ch->is->clsb);
543 rcv_mbox(ch->is, ptr);
544 if (ch->is->cmsb & HDLC_FED) {
545 if (ch->bch.rx_skb->len < 3) { /* last 2 are the FCS */
546 pr_info("%s: ISAR frame to short %d\n",
547 ch->is->name, ch->bch.rx_skb->len);
548 skb_trim(ch->bch.rx_skb, 0);
549 break;
550 }
551 skb_trim(ch->bch.rx_skb, ch->bch.rx_skb->len - 2);
034005a0 552 recv_Bchannel(&ch->bch, 0, false);
da2272c9
KK		 553 }
554 if (ch->is->cmsb & SART_NMD) { /* ABORT */
555 pr_debug("%s: isar_rcv_frame: no more data\n",
475be4d8 556 ch->is->name);
da2272c9
KK		 557 ch->is->write_reg(ch->is->hw, ISAR_IIA, 0);
558 if (ch->bch.rx_skb)
559 skb_trim(ch->bch.rx_skb, 0);
560 send_mbox(ch->is, SET_DPS(ch->dpath) |
475be4d8 561 ISAR_HIS_PUMPCTRL, PCTRL_CMD_ESC, 0, NULL);
da2272c9
KK		 562 ch->state = STFAX_ESCAPE;
563 deliver_status(ch, HW_MOD_NOCARR);
564 }
565 break;
566 default:
567 pr_info("isar_rcv_frame protocol (%x)error\n", ch->bch.state);
568 ch->is->write_reg(ch->is->hw, ISAR_IIA, 0);
569 break;
570 }
571}
572
573static void
574isar_fill_fifo(struct isar_ch *ch)
575{
576 int count;
577 u8 msb;
578 u8 *ptr;
579
6d1ee48f
KK		 580 pr_debug("%s: ch%d tx_skb %d tx_idx %d\n", ch->is->name, ch->bch.nr,
581 ch->bch.tx_skb ? ch->bch.tx_skb->len : -1, ch->bch.tx_idx);
582 if (!(ch->is->bstat &
583 (ch->dpath == 1 ? BSTAT_RDM1 : BSTAT_RDM2)))
584 return;
585 if (!ch->bch.tx_skb) {
586 if (!test_bit(FLG_TX_EMPTY, &ch->bch.Flags) ||
587 (ch->bch.state != ISDN_P_B_RAW))
588 return;
589 count = ch->mml;
590 /* use the card buffer */
591 memset(ch->is->buf, ch->bch.fill[0], count);
592 send_mbox(ch->is, SET_DPS(ch->dpath) | ISAR_HIS_SDATA,
593 0, count, ch->is->buf);
da2272c9 594 return;
6d1ee48f 595 }
da2272c9
KK		 596 count = ch->bch.tx_skb->len - ch->bch.tx_idx;
597 if (count <= 0)
598 return;
da2272c9
KK		 599 if (count > ch->mml) {
600 msb = 0;
601 count = ch->mml;
602 } else {
603 msb = HDLC_FED;
604 }
605 ptr = ch->bch.tx_skb->data + ch->bch.tx_idx;
606 if (!ch->bch.tx_idx) {
607 pr_debug("%s: frame start\n", ch->is->name);
608 if ((ch->bch.state == ISDN_P_B_T30_FAX) &&
475be4d8 609 (ch->cmd == PCTRL_CMD_FTH)) {
da2272c9
KK		 610 if (count > 1) {
611 if ((ptr[0] == 0xff) && (ptr[1] == 0x13)) {
612 /* last frame */
613 test_and_set_bit(FLG_LASTDATA,
475be4d8 614 &ch->bch.Flags);
da2272c9 615 pr_debug("%s: set LASTDATA\n",
475be4d8 616 ch->is->name);
da2272c9
KK		 617 if (msb == HDLC_FED)
618 test_and_set_bit(FLG_DLEETX,
475be4d8 619 &ch->bch.Flags);
da2272c9
KK		 620 }
621 }
622 }
623 msb |= HDLC_FST;
624 }
625 ch->bch.tx_idx += count;
626 switch (ch->bch.state) {
627 case ISDN_P_NONE:
628 pr_info("%s: wrong protocol 0\n", __func__);
629 break;
630 case ISDN_P_B_RAW:
631 case ISDN_P_B_L2DTMF:
632 case ISDN_P_B_MODEM_ASYNC:
633 send_mbox(ch->is, SET_DPS(ch->dpath) | ISAR_HIS_SDATA,
475be4d8 634 0, count, ptr);
da2272c9
KK		 635 break;
636 case ISDN_P_B_HDLC:
637 send_mbox(ch->is, SET_DPS(ch->dpath) | ISAR_HIS_SDATA,
475be4d8 638 msb, count, ptr);
da2272c9
KK		 639 break;
640 case ISDN_P_B_T30_FAX:
641 if (ch->state != STFAX_ACTIV)
642 pr_debug("%s: not ACTIV\n", ch->is->name);
643 else if (ch->cmd == PCTRL_CMD_FTH)
644 send_mbox(ch->is, SET_DPS(ch->dpath) | ISAR_HIS_SDATA,
475be4d8 645 msb, count, ptr);
da2272c9
KK		 646 else if (ch->cmd == PCTRL_CMD_FTM)
647 send_mbox(ch->is, SET_DPS(ch->dpath) | ISAR_HIS_SDATA,
475be4d8 648 0, count, ptr);
da2272c9
KK		 649 else
650 pr_debug("%s: not FTH/FTM\n", ch->is->name);
651 break;
652 default:
653 pr_info("%s: protocol(%x) error\n",
654 __func__, ch->bch.state);
655 break;
656 }
657}
658
659static inline struct isar_ch *
660sel_bch_isar(struct isar_hw *isar, u8 dpath)
661{
662 struct isar_ch *base = &isar->ch[0];
663
664 if ((!dpath) || (dpath > 2))
665 return NULL;
666 if (base->dpath == dpath)
667 return base;
668 base++;
669 if (base->dpath == dpath)
670 return base;
671 return NULL;
672}
673
674static void
675send_next(struct isar_ch *ch)
676{
6d1ee48f
KK		 677 pr_debug("%s: %s ch%d tx_skb %d tx_idx %d\n", ch->is->name, __func__,
678 ch->bch.nr, ch->bch.tx_skb ? ch->bch.tx_skb->len : -1,
679 ch->bch.tx_idx);
da2272c9
KK		 680 if (ch->bch.state == ISDN_P_B_T30_FAX) {
681 if (ch->cmd == PCTRL_CMD_FTH) {
682 if (test_bit(FLG_LASTDATA, &ch->bch.Flags)) {
683 pr_debug("set NMD_DATA\n");
684 test_and_set_bit(FLG_NMD_DATA, &ch->bch.Flags);
685 }
686 } else if (ch->cmd == PCTRL_CMD_FTM) {
687 if (test_bit(FLG_DLEETX, &ch->bch.Flags)) {
688 test_and_set_bit(FLG_LASTDATA, &ch->bch.Flags);
689 test_and_set_bit(FLG_NMD_DATA, &ch->bch.Flags);
690 }
691 }
692 }
8bfddfbe 693 if (ch->bch.tx_skb)
da2272c9 694 dev_kfree_skb(ch->bch.tx_skb);
8bfddfbe 695 if (get_next_bframe(&ch->bch)) {
da2272c9 696 isar_fill_fifo(ch);
6d1ee48f
KK		 697 test_and_clear_bit(FLG_TX_EMPTY, &ch->bch.Flags);
698 } else if (test_bit(FLG_TX_EMPTY, &ch->bch.Flags)) {
699 isar_fill_fifo(ch);
8bfddfbe 700 } else {
da2272c9
KK		 701 if (test_and_clear_bit(FLG_DLEETX, &ch->bch.Flags)) {
702 if (test_and_clear_bit(FLG_LASTDATA,
475be4d8 703 &ch->bch.Flags)) {
da2272c9 704 if (test_and_clear_bit(FLG_NMD_DATA,
475be4d8 705 &ch->bch.Flags)) {
da2272c9
KK		 706 u8 zd = 0;
707 send_mbox(ch->is, SET_DPS(ch->dpath) |
475be4d8 708 ISAR_HIS_SDATA, 0x01, 1, &zd);
da2272c9
KK		 709 }
710 test_and_set_bit(FLG_LL_OK, &ch->bch.Flags);
711 } else {
712 deliver_status(ch, HW_MOD_CONNECT);
713 }
6d1ee48f
KK		 714 } else if (test_bit(FLG_FILLEMPTY, &ch->bch.Flags)) {
715 test_and_set_bit(FLG_TX_EMPTY, &ch->bch.Flags);
da2272c9
KK		 716 }
717 }
718}
719
720static void
721check_send(struct isar_hw *isar, u8 rdm)
722{
723 struct isar_ch *ch;
724
725 pr_debug("%s: rdm %x\n", isar->name, rdm);
726 if (rdm & BSTAT_RDM1) {
727 ch = sel_bch_isar(isar, 1);
728 if (ch && test_bit(FLG_ACTIVE, &ch->bch.Flags)) {
729 if (ch->bch.tx_skb && (ch->bch.tx_skb->len >
475be4d8 730 ch->bch.tx_idx))
da2272c9
KK		 731 isar_fill_fifo(ch);
732 else
733 send_next(ch);
734 }
735 }
736 if (rdm & BSTAT_RDM2) {
737 ch = sel_bch_isar(isar, 2);
738 if (ch && test_bit(FLG_ACTIVE, &ch->bch.Flags)) {
739 if (ch->bch.tx_skb && (ch->bch.tx_skb->len >
475be4d8 740 ch->bch.tx_idx))
da2272c9
KK		 741 isar_fill_fifo(ch);
742 else
743 send_next(ch);
744 }
745 }
746}
747
748const char *dmril[] = {"NO SPEED", "1200/75", "NODEF2", "75/1200", "NODEF4",
475be4d8
JP		 749 "300", "600", "1200", "2400", "4800", "7200",
750 "9600nt", "9600t", "12000", "14400", "WRONG"};
da2272c9 751const char *dmrim[] = {"NO MOD", "NO DEF", "V32/V32b", "V22", "V21",
475be4d8 752 "Bell103", "V23", "Bell202", "V17", "V29", "V27ter"};
da2272c9
KK		 753
754static void
755isar_pump_status_rsp(struct isar_ch *ch) {
756 u8 ril = ch->is->buf[0];
757 u8 rim;
758
759 if (!test_and_clear_bit(ISAR_RATE_REQ, &ch->is->Flags))
760 return;
761 if (ril > 14) {
762 pr_info("%s: wrong pstrsp ril=%d\n", ch->is->name, ril);
763 ril = 15;
764 }
765 switch (ch->is->buf[1]) {
766 case 0:
767 rim = 0;
768 break;
769 case 0x20:
770 rim = 2;
771 break;
772 case 0x40:
773 rim = 3;
774 break;
775 case 0x41:
776 rim = 4;
777 break;
778 case 0x51:
779 rim = 5;
780 break;
781 case 0x61:
782 rim = 6;
783 break;
784 case 0x71:
785 rim = 7;
786 break;
787 case 0x82:
788 rim = 8;
789 break;
790 case 0x92:
791 rim = 9;
792 break;
793 case 0xa2:
794 rim = 10;
795 break;
796 default:
797 rim = 1;
798 break;
799 }
800 sprintf(ch->conmsg, "%s %s", dmril[ril], dmrim[rim]);
801 pr_debug("%s: pump strsp %s\n", ch->is->name, ch->conmsg);
802}
803
804static void
805isar_pump_statev_modem(struct isar_ch *ch, u8 devt) {
806 u8 dps = SET_DPS(ch->dpath);
807
808 switch (devt) {
809 case PSEV_10MS_TIMER:
810 pr_debug("%s: pump stev TIMER\n", ch->is->name);
811 break;
812 case PSEV_CON_ON:
813 pr_debug("%s: pump stev CONNECT\n", ch->is->name);
814 deliver_status(ch, HW_MOD_CONNECT);
815 break;
816 case PSEV_CON_OFF:
817 pr_debug("%s: pump stev NO CONNECT\n", ch->is->name);
818 send_mbox(ch->is, dps | ISAR_HIS_PSTREQ, 0, 0, NULL);
819 deliver_status(ch, HW_MOD_NOCARR);
820 break;
821 case PSEV_V24_OFF:
822 pr_debug("%s: pump stev V24 OFF\n", ch->is->name);
823 break;
824 case PSEV_CTS_ON:
825 pr_debug("%s: pump stev CTS ON\n", ch->is->name);
826 break;
827 case PSEV_CTS_OFF:
828 pr_debug("%s pump stev CTS OFF\n", ch->is->name);
829 break;
830 case PSEV_DCD_ON:
831 pr_debug("%s: pump stev CARRIER ON\n", ch->is->name);
832 test_and_set_bit(ISAR_RATE_REQ, &ch->is->Flags);
833 send_mbox(ch->is, dps | ISAR_HIS_PSTREQ, 0, 0, NULL);
834 break;
835 case PSEV_DCD_OFF:
836 pr_debug("%s: pump stev CARRIER OFF\n", ch->is->name);
837 break;
838 case PSEV_DSR_ON:
839 pr_debug("%s: pump stev DSR ON\n", ch->is->name);
840 break;
841 case PSEV_DSR_OFF:
842 pr_debug("%s: pump stev DSR_OFF\n", ch->is->name);
843 break;
844 case PSEV_REM_RET:
845 pr_debug("%s: pump stev REMOTE RETRAIN\n", ch->is->name);
846 break;
847 case PSEV_REM_REN:
848 pr_debug("%s: pump stev REMOTE RENEGOTIATE\n", ch->is->name);
849 break;
850 case PSEV_GSTN_CLR:
851 pr_debug("%s: pump stev GSTN CLEAR\n", ch->is->name);
852 break;
853 default:
af901ca1 854 pr_info("u%s: unknown pump stev %x\n", ch->is->name, devt);
da2272c9
KK		 855 break;
856 }
857}
858
859static void
860isar_pump_statev_fax(struct isar_ch *ch, u8 devt) {
861 u8 dps = SET_DPS(ch->dpath);
862 u8 p1;
863
864 switch (devt) {
865 case PSEV_10MS_TIMER:
866 pr_debug("%s: pump stev TIMER\n", ch->is->name);
867 break;
868 case PSEV_RSP_READY:
869 pr_debug("%s: pump stev RSP_READY\n", ch->is->name);
870 ch->state = STFAX_READY;
871 deliver_status(ch, HW_MOD_READY);
872#ifdef AUTOCON
873 if (test_bit(BC_FLG_ORIG, &ch->bch.Flags))
874 isar_pump_cmd(bch, HW_MOD_FRH, 3);
875 else
876 isar_pump_cmd(bch, HW_MOD_FTH, 3);
877#endif
878 break;
879 case PSEV_LINE_TX_H:
880 if (ch->state == STFAX_LINE) {
881 pr_debug("%s: pump stev LINE_TX_H\n", ch->is->name);
882 ch->state = STFAX_CONT;
883 send_mbox(ch->is, dps | ISAR_HIS_PUMPCTRL,
475be4d8 884 PCTRL_CMD_CONT, 0, NULL);
da2272c9
KK		 885 } else {
886 pr_debug("%s: pump stev LINE_TX_H wrong st %x\n",
475be4d8 887 ch->is->name, ch->state);
da2272c9
KK		 888 }
889 break;
890 case PSEV_LINE_RX_H:
891 if (ch->state == STFAX_LINE) {
892 pr_debug("%s: pump stev LINE_RX_H\n", ch->is->name);
893 ch->state = STFAX_CONT;
894 send_mbox(ch->is, dps | ISAR_HIS_PUMPCTRL,
475be4d8 895 PCTRL_CMD_CONT, 0, NULL);
da2272c9
KK		 896 } else {
897 pr_debug("%s: pump stev LINE_RX_H wrong st %x\n",
475be4d8 898 ch->is->name, ch->state);
da2272c9
KK		 899 }
900 break;
901 case PSEV_LINE_TX_B:
902 if (ch->state == STFAX_LINE) {
903 pr_debug("%s: pump stev LINE_TX_B\n", ch->is->name);
904 ch->state = STFAX_CONT;
905 send_mbox(ch->is, dps | ISAR_HIS_PUMPCTRL,
475be4d8 906 PCTRL_CMD_CONT, 0, NULL);
da2272c9
KK		 907 } else {
908 pr_debug("%s: pump stev LINE_TX_B wrong st %x\n",
475be4d8 909 ch->is->name, ch->state);
da2272c9
KK		 910 }
911 break;
912 case PSEV_LINE_RX_B:
913 if (ch->state == STFAX_LINE) {
914 pr_debug("%s: pump stev LINE_RX_B\n", ch->is->name);
915 ch->state = STFAX_CONT;
916 send_mbox(ch->is, dps | ISAR_HIS_PUMPCTRL,
475be4d8 917 PCTRL_CMD_CONT, 0, NULL);
da2272c9
KK		 918 } else {
919 pr_debug("%s: pump stev LINE_RX_B wrong st %x\n",
475be4d8 920 ch->is->name, ch->state);
da2272c9
KK		 921 }
922 break;
923 case PSEV_RSP_CONN:
924 if (ch->state == STFAX_CONT) {
925 pr_debug("%s: pump stev RSP_CONN\n", ch->is->name);
926 ch->state = STFAX_ACTIV;
927 test_and_set_bit(ISAR_RATE_REQ, &ch->is->Flags);
928 send_mbox(ch->is, dps | ISAR_HIS_PSTREQ, 0, 0, NULL);
929 if (ch->cmd == PCTRL_CMD_FTH) {
930 int delay = (ch->mod == 3) ? 1000 : 200;
931 /* 1s (200 ms) Flags before data */
932 if (test_and_set_bit(FLG_FTI_RUN,
475be4d8 933 &ch->bch.Flags))
da2272c9
KK		 934 del_timer(&ch->ftimer);
935 ch->ftimer.expires =
475be4d8 936 jiffies + ((delay * HZ) / 1000);
da2272c9 937 test_and_set_bit(FLG_LL_CONN,
475be4d8 938 &ch->bch.Flags);
da2272c9
KK		 939 add_timer(&ch->ftimer);
940 } else {
941 deliver_status(ch, HW_MOD_CONNECT);
942 }
943 } else {
944 pr_debug("%s: pump stev RSP_CONN wrong st %x\n",
475be4d8 945 ch->is->name, ch->state);
da2272c9
KK		 946 }
947 break;
948 case PSEV_FLAGS_DET:
949 pr_debug("%s: pump stev FLAGS_DET\n", ch->is->name);
950 break;
951 case PSEV_RSP_DISC:
952 pr_debug("%s: pump stev RSP_DISC state(%d)\n",
475be4d8 953 ch->is->name, ch->state);
da2272c9
KK		 954 if (ch->state == STFAX_ESCAPE) {
955 p1 = 5;
956 switch (ch->newcmd) {
957 case 0:
958 ch->state = STFAX_READY;
959 break;
960 case PCTRL_CMD_FTM:
961 p1 = 2;
d287c502 962 /* fall through */
da2272c9
KK		 963 case PCTRL_CMD_FTH:
964 send_mbox(ch->is, dps | ISAR_HIS_PUMPCTRL,
475be4d8 965 PCTRL_CMD_SILON, 1, &p1);
da2272c9
KK		 966 ch->state = STFAX_SILDET;
967 break;
968 case PCTRL_CMD_FRH:
969 case PCTRL_CMD_FRM:
970 ch->mod = ch->newmod;
971 p1 = ch->newmod;
972 ch->newmod = 0;
973 ch->cmd = ch->newcmd;
974 ch->newcmd = 0;
975 send_mbox(ch->is, dps | ISAR_HIS_PUMPCTRL,
475be4d8 976 ch->cmd, 1, &p1);
da2272c9
KK		 977 ch->state = STFAX_LINE;
978 ch->try_mod = 3;
979 break;
980 default:
981 pr_debug("%s: RSP_DISC unknown newcmd %x\n",
475be4d8 982 ch->is->name, ch->newcmd);
da2272c9
KK		 983 break;
984 }
985 } else if (ch->state == STFAX_ACTIV) {
986 if (test_and_clear_bit(FLG_LL_OK, &ch->bch.Flags))
987 deliver_status(ch, HW_MOD_OK);
988 else if (ch->cmd == PCTRL_CMD_FRM)
989 deliver_status(ch, HW_MOD_NOCARR);
990 else
991 deliver_status(ch, HW_MOD_FCERROR);
992 ch->state = STFAX_READY;
993 } else if (ch->state != STFAX_SILDET) {
994 /* ignore in STFAX_SILDET */
995 ch->state = STFAX_READY;
996 deliver_status(ch, HW_MOD_FCERROR);
997 }
998 break;
999 case PSEV_RSP_SILDET:
1000 pr_debug("%s: pump stev RSP_SILDET\n", ch->is->name);
1001 if (ch->state == STFAX_SILDET) {
1002 ch->mod = ch->newmod;
1003 p1 = ch->newmod;
1004 ch->newmod = 0;
1005 ch->cmd = ch->newcmd;
1006 ch->newcmd = 0;
1007 send_mbox(ch->is, dps | ISAR_HIS_PUMPCTRL,
475be4d8 1008 ch->cmd, 1, &p1);
da2272c9
KK		 1009 ch->state = STFAX_LINE;
1010 ch->try_mod = 3;
1011 }
1012 break;
1013 case PSEV_RSP_SILOFF:
1014 pr_debug("%s: pump stev RSP_SILOFF\n", ch->is->name);
1015 break;
1016 case PSEV_RSP_FCERR:
1017 if (ch->state == STFAX_LINE) {
1018 pr_debug("%s: pump stev RSP_FCERR try %d\n",
475be4d8 1019 ch->is->name, ch->try_mod);
da2272c9
KK		 1020 if (ch->try_mod--) {
1021 send_mbox(ch->is, dps | ISAR_HIS_PUMPCTRL,
475be4d8 1022 ch->cmd, 1, &ch->mod);
da2272c9
KK		 1023 break;
1024 }
1025 }
1026 pr_debug("%s: pump stev RSP_FCERR\n", ch->is->name);
1027 ch->state = STFAX_ESCAPE;
1028 send_mbox(ch->is, dps | ISAR_HIS_PUMPCTRL, PCTRL_CMD_ESC,
475be4d8 1029 0, NULL);
da2272c9
KK		 1030 deliver_status(ch, HW_MOD_FCERROR);
1031 break;
1032 default:
1033 break;
1034 }
1035}
1036
1037void
1038mISDNisar_irq(struct isar_hw *isar)
1039{
1040 struct isar_ch *ch;
1041
1042 get_irq_infos(isar);
1043 switch (isar->iis & ISAR_IIS_MSCMSD) {
1044 case ISAR_IIS_RDATA:
1045 ch = sel_bch_isar(isar, isar->iis >> 6);
1046 if (ch)
1047 isar_rcv_frame(ch);
1048 else {
1049 pr_debug("%s: ISAR spurious IIS_RDATA %x/%x/%x\n",
475be4d8
JP		 1050 isar->name, isar->iis, isar->cmsb,
1051 isar->clsb);
da2272c9
KK		 1052 isar->write_reg(isar->hw, ISAR_IIA, 0);
1053 }
1054 break;
1055 case ISAR_IIS_GSTEV:
1056 isar->write_reg(isar->hw, ISAR_IIA, 0);
1057 isar->bstat |= isar->cmsb;
1058 check_send(isar, isar->cmsb);
1059 break;
1060 case ISAR_IIS_BSTEV:
1061#ifdef ERROR_STATISTIC
1062 ch = sel_bch_isar(isar, isar->iis >> 6);
1063 if (ch) {
1064 if (isar->cmsb == BSTEV_TBO)
1065 ch->bch.err_tx++;
1066 if (isar->cmsb == BSTEV_RBO)
1067 ch->bch.err_rdo++;
1068 }
1069#endif
1070 pr_debug("%s: Buffer STEV dpath%d msb(%x)\n",
475be4d8 1071 isar->name, isar->iis >> 6, isar->cmsb);
da2272c9
KK		 1072 isar->write_reg(isar->hw, ISAR_IIA, 0);
1073 break;
1074 case ISAR_IIS_PSTEV:
1075 ch = sel_bch_isar(isar, isar->iis >> 6);
1076 if (ch) {
1077 rcv_mbox(isar, NULL);
1078 if (ch->bch.state == ISDN_P_B_MODEM_ASYNC)
1079 isar_pump_statev_modem(ch, isar->cmsb);
1080 else if (ch->bch.state == ISDN_P_B_T30_FAX)
1081 isar_pump_statev_fax(ch, isar->cmsb);
1082 else if (ch->bch.state == ISDN_P_B_RAW) {
1083 int tt;
1084 tt = isar->cmsb | 0x30;
1085 if (tt == 0x3e)
1086 tt = '*';
1087 else if (tt == 0x3f)
1088 tt = '#';
1089 else if (tt > '9')
1090 tt += 7;
1091 tt |= DTMF_TONE_VAL;
1092 _queue_data(&ch->bch.ch, PH_CONTROL_IND,
475be4d8
JP		 1093 MISDN_ID_ANY, sizeof(tt), &tt,
1094 GFP_ATOMIC);
da2272c9
KK		 1095 } else
1096 pr_debug("%s: ISAR IIS_PSTEV pm %d sta %x\n",
475be4d8
JP		 1097 isar->name, ch->bch.state,
1098 isar->cmsb);
da2272c9
KK		 1099 } else {
1100 pr_debug("%s: ISAR spurious IIS_PSTEV %x/%x/%x\n",
475be4d8
JP		 1101 isar->name, isar->iis, isar->cmsb,
1102 isar->clsb);
da2272c9
KK		 1103 isar->write_reg(isar->hw, ISAR_IIA, 0);
1104 }
1105 break;
1106 case ISAR_IIS_PSTRSP:
1107 ch = sel_bch_isar(isar, isar->iis >> 6);
1108 if (ch) {
1109 rcv_mbox(isar, NULL);
1110 isar_pump_status_rsp(ch);
1111 } else {
1112 pr_debug("%s: ISAR spurious IIS_PSTRSP %x/%x/%x\n",
475be4d8
JP		 1113 isar->name, isar->iis, isar->cmsb,
1114 isar->clsb);
da2272c9
KK		 1115 isar->write_reg(isar->hw, ISAR_IIA, 0);
1116 }
1117 break;
1118 case ISAR_IIS_DIAG:
1119 case ISAR_IIS_BSTRSP:
1120 case ISAR_IIS_IOM2RSP:
1121 rcv_mbox(isar, NULL);
1122 break;
1123 case ISAR_IIS_INVMSG:
1124 rcv_mbox(isar, NULL);
1125 pr_debug("%s: invalid msg his:%x\n", isar->name, isar->cmsb);
1126 break;
1127 default:
1128 rcv_mbox(isar, NULL);
1129 pr_debug("%s: unhandled msg iis(%x) ctrl(%x/%x)\n",
475be4d8 1130 isar->name, isar->iis, isar->cmsb, isar->clsb);
da2272c9
KK		 1131 break;
1132 }
1133}
1134EXPORT_SYMBOL(mISDNisar_irq);
1135
1136static void
e99e88a9 1137ftimer_handler(struct timer_list *t)
da2272c9 1138{
e99e88a9 1139 struct isar_ch *ch = from_timer(ch, t, ftimer);
da2272c9
KK		 1140
1141 pr_debug("%s: ftimer flags %lx\n", ch->is->name, ch->bch.Flags);
1142 test_and_clear_bit(FLG_FTI_RUN, &ch->bch.Flags);
1143 if (test_and_clear_bit(FLG_LL_CONN, &ch->bch.Flags))
1144 deliver_status(ch, HW_MOD_CONNECT);
1145}
1146
1147static void
1148setup_pump(struct isar_ch *ch) {
1149 u8 dps = SET_DPS(ch->dpath);
1150 u8 ctrl, param[6];
1151
1152 switch (ch->bch.state) {
1153 case ISDN_P_NONE:
1154 case ISDN_P_B_RAW:
1155 case ISDN_P_B_HDLC:
1156 send_mbox(ch->is, dps | ISAR_HIS_PUMPCFG, PMOD_BYPASS, 0, NULL);
1157 break;
1158 case ISDN_P_B_L2DTMF:
1159 if (test_bit(FLG_DTMFSEND, &ch->bch.Flags)) {
1160 param[0] = 5; /* TOA 5 db */
1161 send_mbox(ch->is, dps | ISAR_HIS_PUMPCFG,
475be4d8 1162 PMOD_DTMF_TRANS, 1, param);
da2272c9
KK		 1163 } else {
1164 param[0] = 40; /* REL -46 dbm */
1165 send_mbox(ch->is, dps | ISAR_HIS_PUMPCFG,
475be4d8 1166 PMOD_DTMF, 1, param);
da2272c9 1167 }
d287c502 1168 /* fall through */
da2272c9
KK		 1169 case ISDN_P_B_MODEM_ASYNC:
1170 ctrl = PMOD_DATAMODEM;
1171 if (test_bit(FLG_ORIGIN, &ch->bch.Flags)) {
1172 ctrl |= PCTRL_ORIG;
1173 param[5] = PV32P6_CTN;
1174 } else {
1175 param[5] = PV32P6_ATN;
1176 }
1177 param[0] = 6; /* 6 db */
1178 param[1] = PV32P2_V23R | PV32P2_V22A | PV32P2_V22B |
1179 PV32P2_V22C | PV32P2_V21 | PV32P2_BEL;
1180 param[2] = PV32P3_AMOD | PV32P3_V32B | PV32P3_V23B;
1181 param[3] = PV32P4_UT144;
1182 param[4] = PV32P5_UT144;
1183 send_mbox(ch->is, dps | ISAR_HIS_PUMPCFG, ctrl, 6, param);
1184 break;
1185 case ISDN_P_B_T30_FAX:
1186 ctrl = PMOD_FAX;
1187 if (test_bit(FLG_ORIGIN, &ch->bch.Flags)) {
1188 ctrl |= PCTRL_ORIG;
1189 param[1] = PFAXP2_CTN;
1190 } else {
1191 param[1] = PFAXP2_ATN;
1192 }
1193 param[0] = 6; /* 6 db */
1194 send_mbox(ch->is, dps | ISAR_HIS_PUMPCFG, ctrl, 2, param);
1195 ch->state = STFAX_NULL;
1196 ch->newcmd = 0;
1197 ch->newmod = 0;
1198 test_and_set_bit(FLG_FTI_RUN, &ch->bch.Flags);
1199 break;
1200 }
1201 udelay(1000);
1202 send_mbox(ch->is, dps | ISAR_HIS_PSTREQ, 0, 0, NULL);
1203 udelay(1000);
1204}
1205
1206static void
1207setup_sart(struct isar_ch *ch) {
1208 u8 dps = SET_DPS(ch->dpath);
1209 u8 ctrl, param[2] = {0, 0};
1210
1211 switch (ch->bch.state) {
1212 case ISDN_P_NONE:
1213 send_mbox(ch->is, dps | ISAR_HIS_SARTCFG, SMODE_DISABLE,
475be4d8 1214 0, NULL);
da2272c9
KK		 1215 break;
1216 case ISDN_P_B_RAW:
1217 case ISDN_P_B_L2DTMF:
1218 send_mbox(ch->is, dps | ISAR_HIS_SARTCFG, SMODE_BINARY,
475be4d8 1219 2, param);
da2272c9
KK		 1220 break;
1221 case ISDN_P_B_HDLC:
1222 case ISDN_P_B_T30_FAX:
1223 send_mbox(ch->is, dps | ISAR_HIS_SARTCFG, SMODE_HDLC,
475be4d8 1224 1, param);
da2272c9
KK		 1225 break;
1226 case ISDN_P_B_MODEM_ASYNC:
1227 ctrl = SMODE_V14 | SCTRL_HDMC_BOTH;
1228 param[0] = S_P1_CHS_8;
1229 param[1] = S_P2_BFT_DEF;
1230 send_mbox(ch->is, dps | ISAR_HIS_SARTCFG, ctrl, 2, param);
1231 break;
1232 }
1233 udelay(1000);
1234 send_mbox(ch->is, dps | ISAR_HIS_BSTREQ, 0, 0, NULL);
1235 udelay(1000);
1236}
1237
1238static void
1239setup_iom2(struct isar_ch *ch) {
1240 u8 dps = SET_DPS(ch->dpath);
1241 u8 cmsb = IOM_CTRL_ENA, msg[5] = {IOM_P1_TXD, 0, 0, 0, 0};
1242
1243 if (ch->bch.nr == 2) {
1244 msg[1] = 1;
1245 msg[3] = 1;
1246 }
1247 switch (ch->bch.state) {
1248 case ISDN_P_NONE:
1249 cmsb = 0;
1250 /* dummy slot */
1251 msg[1] = ch->dpath + 2;
1252 msg[3] = ch->dpath + 2;
1253 break;
1254 case ISDN_P_B_RAW:
1255 case ISDN_P_B_HDLC:
1256 break;
1257 case ISDN_P_B_MODEM_ASYNC:
1258 case ISDN_P_B_T30_FAX:
1259 cmsb |= IOM_CTRL_RCV;
d287c502 1260 /* fall through */
da2272c9
KK		 1261 case ISDN_P_B_L2DTMF:
1262 if (test_bit(FLG_DTMFSEND, &ch->bch.Flags))
1263 cmsb |= IOM_CTRL_RCV;
1264 cmsb |= IOM_CTRL_ALAW;
1265 break;
1266 }
1267 send_mbox(ch->is, dps | ISAR_HIS_IOM2CFG, cmsb, 5, msg);
1268 udelay(1000);
1269 send_mbox(ch->is, dps | ISAR_HIS_IOM2REQ, 0, 0, NULL);
1270 udelay(1000);
1271}
1272
1273static int
1274modeisar(struct isar_ch *ch, u32 bprotocol)
1275{
1276 /* Here we are selecting the best datapath for requested protocol */
1277 if (ch->bch.state == ISDN_P_NONE) { /* New Setup */
1278 switch (bprotocol) {
1279 case ISDN_P_NONE: /* init */
1280 if (!ch->dpath)
1281 /* no init for dpath 0 */
1282 return 0;
1283 test_and_clear_bit(FLG_HDLC, &ch->bch.Flags);
1284 test_and_clear_bit(FLG_TRANSPARENT, &ch->bch.Flags);
1285 break;
1286 case ISDN_P_B_RAW:
1287 case ISDN_P_B_HDLC:
1288 /* best is datapath 2 */
1289 if (!test_and_set_bit(ISAR_DP2_USE, &ch->is->Flags))
1290 ch->dpath = 2;
1291 else if (!test_and_set_bit(ISAR_DP1_USE,
475be4d8 1292 &ch->is->Flags))
da2272c9
KK		 1293 ch->dpath = 1;
1294 else {
465b1678 1295 pr_info("modeisar both paths in use\n");
da2272c9
KK		 1296 return -EBUSY;
1297 }
1298 if (bprotocol == ISDN_P_B_HDLC)
1299 test_and_set_bit(FLG_HDLC, &ch->bch.Flags);
1300 else
1301 test_and_set_bit(FLG_TRANSPARENT,
475be4d8 1302 &ch->bch.Flags);
da2272c9
KK		 1303 break;
1304 case ISDN_P_B_MODEM_ASYNC:
1305 case ISDN_P_B_T30_FAX:
1306 case ISDN_P_B_L2DTMF:
1307 /* only datapath 1 */
1308 if (!test_and_set_bit(ISAR_DP1_USE, &ch->is->Flags))
1309 ch->dpath = 1;
1310 else {
1311 pr_info("%s: ISAR modeisar analog functions"
1312 "only with DP1\n", ch->is->name);
1313 return -EBUSY;
1314 }
1315 break;
1316 default:
1317 pr_info("%s: protocol not known %x\n", ch->is->name,
1318 bprotocol);
1319 return -ENOPROTOOPT;
1320 }
1321 }
1322 pr_debug("%s: ISAR ch%d dp%d protocol %x->%x\n", ch->is->name,
475be4d8 1323 ch->bch.nr, ch->dpath, ch->bch.state, bprotocol);
da2272c9
KK		 1324 ch->bch.state = bprotocol;
1325 setup_pump(ch);
1326 setup_iom2(ch);
1327 setup_sart(ch);
1328 if (ch->bch.state == ISDN_P_NONE) {
1329 /* Clear resources */
1330 if (ch->dpath == 1)
1331 test_and_clear_bit(ISAR_DP1_USE, &ch->is->Flags);
1332 else if (ch->dpath == 2)
1333 test_and_clear_bit(ISAR_DP2_USE, &ch->is->Flags);
1334 ch->dpath = 0;
1335 ch->is->ctrl(ch->is->hw, HW_DEACT_IND, ch->bch.nr);
1336 } else
1337 ch->is->ctrl(ch->is->hw, HW_ACTIVATE_IND, ch->bch.nr);
1338 return 0;
1339}
1340
1341static void
1342isar_pump_cmd(struct isar_ch *ch, u32 cmd, u8 para)
1343{
1344 u8 dps = SET_DPS(ch->dpath);
1345 u8 ctrl = 0, nom = 0, p1 = 0;
1346
1347 pr_debug("%s: isar_pump_cmd %x/%x state(%x)\n",
475be4d8 1348 ch->is->name, cmd, para, ch->bch.state);
da2272c9
KK		 1349 switch (cmd) {
1350 case HW_MOD_FTM:
1351 if (ch->state == STFAX_READY) {
1352 p1 = para;
1353 ctrl = PCTRL_CMD_FTM;
1354 nom = 1;
1355 ch->state = STFAX_LINE;
1356 ch->cmd = ctrl;
1357 ch->mod = para;
1358 ch->newmod = 0;
1359 ch->newcmd = 0;
1360 ch->try_mod = 3;
1361 } else if ((ch->state == STFAX_ACTIV) &&
475be4d8 1362 (ch->cmd == PCTRL_CMD_FTM) && (ch->mod == para))
da2272c9
KK		 1363 deliver_status(ch, HW_MOD_CONNECT);
1364 else {
1365 ch->newmod = para;
1366 ch->newcmd = PCTRL_CMD_FTM;
1367 nom = 0;
1368 ctrl = PCTRL_CMD_ESC;
1369 ch->state = STFAX_ESCAPE;
1370 }
1371 break;
1372 case HW_MOD_FTH:
1373 if (ch->state == STFAX_READY) {
1374 p1 = para;
1375 ctrl = PCTRL_CMD_FTH;
1376 nom = 1;
1377 ch->state = STFAX_LINE;
1378 ch->cmd = ctrl;
1379 ch->mod = para;
1380 ch->newmod = 0;
1381 ch->newcmd = 0;
1382 ch->try_mod = 3;
1383 } else if ((ch->state == STFAX_ACTIV) &&
475be4d8
JP		 1384 (ch->cmd == PCTRL_CMD_FTH) && (ch->mod == para))
1385 deliver_status(ch, HW_MOD_CONNECT);
da2272c9
KK		 1386 else {
1387 ch->newmod = para;
1388 ch->newcmd = PCTRL_CMD_FTH;
1389 nom = 0;
1390 ctrl = PCTRL_CMD_ESC;
1391 ch->state = STFAX_ESCAPE;
1392 }
1393 break;
1394 case HW_MOD_FRM:
1395 if (ch->state == STFAX_READY) {
1396 p1 = para;
1397 ctrl = PCTRL_CMD_FRM;
1398 nom = 1;
1399 ch->state = STFAX_LINE;
1400 ch->cmd = ctrl;
1401 ch->mod = para;
1402 ch->newmod = 0;
1403 ch->newcmd = 0;
1404 ch->try_mod = 3;
1405 } else if ((ch->state == STFAX_ACTIV) &&
475be4d8 1406 (ch->cmd == PCTRL_CMD_FRM) && (ch->mod == para))
da2272c9
KK		 1407 deliver_status(ch, HW_MOD_CONNECT);
1408 else {
1409 ch->newmod = para;
1410 ch->newcmd = PCTRL_CMD_FRM;
1411 nom = 0;
1412 ctrl = PCTRL_CMD_ESC;
1413 ch->state = STFAX_ESCAPE;
1414 }
1415 break;
1416 case HW_MOD_FRH:
1417 if (ch->state == STFAX_READY) {
1418 p1 = para;
1419 ctrl = PCTRL_CMD_FRH;
1420 nom = 1;
1421 ch->state = STFAX_LINE;
1422 ch->cmd = ctrl;
1423 ch->mod = para;
1424 ch->newmod = 0;
1425 ch->newcmd = 0;
1426 ch->try_mod = 3;
1427 } else if ((ch->state == STFAX_ACTIV) &&
475be4d8 1428 (ch->cmd == PCTRL_CMD_FRH) && (ch->mod == para))
da2272c9
KK		 1429 deliver_status(ch, HW_MOD_CONNECT);
1430 else {
1431 ch->newmod = para;
1432 ch->newcmd = PCTRL_CMD_FRH;
1433 nom = 0;
1434 ctrl = PCTRL_CMD_ESC;
1435 ch->state = STFAX_ESCAPE;
1436 }
1437 break;
1438 case PCTRL_CMD_TDTMF:
1439 p1 = para;
1440 nom = 1;
1441 ctrl = PCTRL_CMD_TDTMF;
1442 break;
1443 }
1444 if (ctrl)
1445 send_mbox(ch->is, dps | ISAR_HIS_PUMPCTRL, ctrl, nom, &p1);
1446}
1447
1448static void
1449isar_setup(struct isar_hw *isar)
1450{
1451 u8 msg;
1452 int i;
1453
1454 /* Dpath 1, 2 */
1455 msg = 61;
1456 for (i = 0; i < 2; i++) {
1457 /* Buffer Config */
1458 send_mbox(isar, (i ? ISAR_HIS_DPS2 : ISAR_HIS_DPS1) |
475be4d8 1459 ISAR_HIS_P12CFG, 4, 1, &msg);
da2272c9
KK		 1460 isar->ch[i].mml = msg;
1461 isar->ch[i].bch.state = 0;
1462 isar->ch[i].dpath = i + 1;
1463 modeisar(&isar->ch[i], ISDN_P_NONE);
1464 }
1465}
1466
1467static int
1468isar_l2l1(struct mISDNchannel *ch, struct sk_buff *skb)
1469{
1470 struct bchannel *bch = container_of(ch, struct bchannel, ch);
1471 struct isar_ch *ich = container_of(bch, struct isar_ch, bch);
1472 int ret = -EINVAL;
1473 struct mISDNhead *hh = mISDN_HEAD_P(skb);
1474 u32 id, *val;
1475 u_long flags;
1476
1477 switch (hh->prim) {
1478 case PH_DATA_REQ:
1479 spin_lock_irqsave(ich->is->hwlock, flags);
1480 ret = bchannel_senddata(bch, skb);
1481 if (ret > 0) { /* direct TX */
da2272c9
KK		 1482 ret = 0;
1483 isar_fill_fifo(ich);
8bfddfbe
KK		 1484 }
1485 spin_unlock_irqrestore(ich->is->hwlock, flags);
da2272c9
KK		 1486 return ret;
1487 case PH_ACTIVATE_REQ:
1488 spin_lock_irqsave(ich->is->hwlock, flags);
1489 if (!test_and_set_bit(FLG_ACTIVE, &bch->Flags))
1490 ret = modeisar(ich, ch->protocol);
1491 else
1492 ret = 0;
1493 spin_unlock_irqrestore(ich->is->hwlock, flags);
1494 if (!ret)
1495 _queue_data(ch, PH_ACTIVATE_IND, MISDN_ID_ANY, 0,
475be4d8 1496 NULL, GFP_KERNEL);
da2272c9
KK		 1497 break;
1498 case PH_DEACTIVATE_REQ:
1499 spin_lock_irqsave(ich->is->hwlock, flags);
1500 mISDN_clear_bchannel(bch);
1501 modeisar(ich, ISDN_P_NONE);
1502 spin_unlock_irqrestore(ich->is->hwlock, flags);
1503 _queue_data(ch, PH_DEACTIVATE_IND, MISDN_ID_ANY, 0,
475be4d8 1504 NULL, GFP_KERNEL);
da2272c9
KK		 1505 ret = 0;
1506 break;
1507 case PH_CONTROL_REQ:
1508 val = (u32 *)skb->data;
1509 pr_debug("%s: PH_CONTROL | REQUEST %x/%x\n", ich->is->name,
475be4d8 1510 hh->id, *val);
da2272c9 1511 if ((hh->id == 0) && ((*val & ~DTMF_TONE_MASK) ==
475be4d8 1512 DTMF_TONE_VAL)) {
da2272c9
KK		 1513 if (bch->state == ISDN_P_B_L2DTMF) {
1514 char tt = *val & DTMF_TONE_MASK;
1515
1516 if (tt == '*')
1517 tt = 0x1e;
1518 else if (tt == '#')
1519 tt = 0x1f;
1520 else if (tt > '9')
1521 tt -= 7;
1522 tt &= 0x1f;
1523 spin_lock_irqsave(ich->is->hwlock, flags);
1524 isar_pump_cmd(ich, PCTRL_CMD_TDTMF, tt);
1525 spin_unlock_irqrestore(ich->is->hwlock, flags);
1526 } else {
1527 pr_info("%s: DTMF send wrong protocol %x\n",
1528 __func__, bch->state);
1529 return -EINVAL;
1530 }
1531 } else if ((hh->id == HW_MOD_FRM) || (hh->id == HW_MOD_FRH) ||
475be4d8 1532 (hh->id == HW_MOD_FTM) || (hh->id == HW_MOD_FTH)) {
da2272c9
KK		 1533 for (id = 0; id < FAXMODCNT; id++)
1534 if (faxmodulation[id] == *val)
1535 break;
1536 if ((FAXMODCNT > id) &&
1537 test_bit(FLG_INITIALIZED, &bch->Flags)) {
1538 pr_debug("%s: isar: new mod\n", ich->is->name);
1539 isar_pump_cmd(ich, hh->id, *val);
1540 ret = 0;
1541 } else {
1542 pr_info("%s: wrong modulation\n",
1543 ich->is->name);
1544 ret = -EINVAL;
1545 }
1546 } else if (hh->id == HW_MOD_LASTDATA)
1547 test_and_set_bit(FLG_DLEETX, &bch->Flags);
1548 else {
1549 pr_info("%s: unknown PH_CONTROL_REQ %x\n",
1550 ich->is->name, hh->id);
1551 ret = -EINVAL;
1552 }
d287c502 1553 /* fall through */
da2272c9
KK		 1554 default:
1555 pr_info("%s: %s unknown prim(%x,%x)\n",
1556 ich->is->name, __func__, hh->prim, hh->id);
1557 ret = -EINVAL;
1558 }
1559 if (!ret)
1560 dev_kfree_skb(skb);
1561 return ret;
1562}
1563
1564static int
1565channel_bctrl(struct bchannel *bch, struct mISDN_ctrl_req *cq)
1566{
034005a0 1567 return mISDN_ctrl_bchannel(bch, cq);
da2272c9
KK		 1568}
1569
1570static int
1571isar_bctrl(struct mISDNchannel *ch, u32 cmd, void *arg)
1572{
1573 struct bchannel *bch = container_of(ch, struct bchannel, ch);
1574 struct isar_ch *ich = container_of(bch, struct isar_ch, bch);
1575 int ret = -EINVAL;
1576 u_long flags;
1577
1578 pr_debug("%s: %s cmd:%x %p\n", ich->is->name, __func__, cmd, arg);
1579 switch (cmd) {
1580 case CLOSE_CHANNEL:
1581 test_and_clear_bit(FLG_OPEN, &bch->Flags);
4b921eda 1582 cancel_work_sync(&bch->workq);
1368112c 1583 spin_lock_irqsave(ich->is->hwlock, flags);
4b921eda 1584 mISDN_clear_bchannel(bch);
1368112c
KK		 1585 modeisar(ich, ISDN_P_NONE);
1586 spin_unlock_irqrestore(ich->is->hwlock, flags);
da2272c9
KK		 1587 ch->protocol = ISDN_P_NONE;
1588 ch->peer = NULL;
1589 module_put(ich->is->owner);
1590 ret = 0;
1591 break;
1592 case CONTROL_CHANNEL:
1593 ret = channel_bctrl(bch, arg);
1594 break;
1595 default:
1596 pr_info("%s: %s unknown prim(%x)\n",
1597 ich->is->name, __func__, cmd);
1598 }
1599 return ret;
1600}
1601
1602static void
1603free_isar(struct isar_hw *isar)
1604{
1605 modeisar(&isar->ch[0], ISDN_P_NONE);
1606 modeisar(&isar->ch[1], ISDN_P_NONE);
1607 del_timer(&isar->ch[0].ftimer);
1608 del_timer(&isar->ch[1].ftimer);
1609 test_and_clear_bit(FLG_INITIALIZED, &isar->ch[0].bch.Flags);
1610 test_and_clear_bit(FLG_INITIALIZED, &isar->ch[1].bch.Flags);
1611}
1612
1613static int
1614init_isar(struct isar_hw *isar)
1615{
1616 int cnt = 3;
1617
1618 while (cnt--) {
1619 isar->version = ISARVersion(isar);
1620 if (isar->ch[0].bch.debug & DEBUG_HW)
1621 pr_notice("%s: Testing version %d (%d time)\n",
475be4d8 1622 isar->name, isar->version, 3 - cnt);
da2272c9
KK		 1623 if (isar->version == 1)
1624 break;
1625 isar->ctrl(isar->hw, HW_RESET_REQ, 0);
1626 }
1627 if (isar->version != 1)
1628 return -EINVAL;
e99e88a9 1629 timer_setup(&isar->ch[0].ftimer, ftimer_handler, 0);
da2272c9 1630 test_and_set_bit(FLG_INITIALIZED, &isar->ch[0].bch.Flags);
e99e88a9 1631 timer_setup(&isar->ch[1].ftimer, ftimer_handler, 0);
da2272c9
KK		 1632 test_and_set_bit(FLG_INITIALIZED, &isar->ch[1].bch.Flags);
1633 return 0;
1634}
1635
1636static int
1637isar_open(struct isar_hw *isar, struct channel_req *rq)
1638{
1639 struct bchannel *bch;
1640
819a1008 1641 if (rq->adr.channel == 0 || rq->adr.channel > 2)
da2272c9
KK		 1642 return -EINVAL;
1643 if (rq->protocol == ISDN_P_NONE)
1644 return -EINVAL;
1645 bch = &isar->ch[rq->adr.channel - 1].bch;
1646 if (test_and_set_bit(FLG_OPEN, &bch->Flags))
1647 return -EBUSY; /* b-channel can be only open once */
da2272c9
KK		 1648 bch->ch.protocol = rq->protocol;
1649 rq->ch = &bch->ch;
1650 return 0;
1651}
1652
1653u32
1654mISDNisar_init(struct isar_hw *isar, void *hw)
1655{
1656 u32 ret, i;
1657
1658 isar->hw = hw;
1659 for (i = 0; i < 2; i++) {
1660 isar->ch[i].bch.nr = i + 1;
034005a0 1661 mISDN_initbchannel(&isar->ch[i].bch, MAX_DATA_MEM, 32);
da2272c9
KK		 1662 isar->ch[i].bch.ch.nr = i + 1;
1663 isar->ch[i].bch.ch.send = &isar_l2l1;
1664 isar->ch[i].bch.ch.ctrl = isar_bctrl;
1665 isar->ch[i].bch.hw = hw;
1666 isar->ch[i].is = isar;
1667 }
1668
1669 isar->init = &init_isar;
1670 isar->release = &free_isar;
1671 isar->firmware = &load_firmware;
1672 isar->open = &isar_open;
1673
1674 ret = (1 << (ISDN_P_B_RAW & ISDN_P_B_MASK)) |
1675 (1 << (ISDN_P_B_HDLC & ISDN_P_B_MASK)) |
1676 (1 << (ISDN_P_B_L2DTMF & ISDN_P_B_MASK)) |
1677 (1 << (ISDN_P_B_MODEM_ASYNC & ISDN_P_B_MASK)) |
1678 (1 << (ISDN_P_B_T30_FAX & ISDN_P_B_MASK));
1679
1680 return ret;
1681}
1682EXPORT_SYMBOL(mISDNisar_init);
1683
88850740 1684static int __init isar_mod_init(void)
da2272c9
KK		 1685{
1686 pr_notice("mISDN: ISAR driver Rev. %s\n", ISAR_REV);
1687 return 0;
1688}
1689
88850740 1690static void __exit isar_mod_cleanup(void)
da2272c9
KK		 1691{
1692 pr_notice("mISDN: ISAR module unloaded\n");
1693}
1694module_init(isar_mod_init);
1695module_exit(isar_mod_cleanup);
Linux 6.x block layer and io_uring tree(s)