SAFE public projects git trees. - safe/jmp/linux-2.6/blob - 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);