linux/drivers/isdn/hisax/isar.c
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   1/* $Id: isar.c,v 1.22.2.6 2004/02/11 13:21:34 keil Exp $
   2 *
   3 * isar.c   ISAR (Siemens PSB 7110) specific routines
   4 *
   5 * Author       Karsten Keil (keil@isdn4linux.de)
   6 *
   7 * This file is (c) under GNU General Public License
   8 *
   9 */
  10
  11#include <linux/init.h>
  12#include "hisax.h"
  13#include "isar.h"
  14#include "isdnl1.h"
  15#include <linux/interrupt.h>
  16#include <linux/slab.h>
  17
  18#define DBG_LOADFIRM    0
  19#define DUMP_MBOXFRAME  2
  20
  21#define DLE     0x10
  22#define ETX     0x03
  23
  24#define FAXMODCNT       13
  25static const u_char faxmodulation[] = {3, 24, 48, 72, 73, 74, 96, 97, 98, 121, 122, 145, 146};
  26static u_int modmask = 0x1fff;
  27static int frm_extra_delay = 2;
  28static int para_TOA = 6;
  29static const u_char *FC1_CMD[] = {"FAE", "FTS", "FRS", "FTM", "FRM", "FTH", "FRH", "CTRL"};
  30
  31static void isar_setup(struct IsdnCardState *cs);
  32static void isar_pump_cmd(struct BCState *bcs, u_char cmd, u_char para);
  33static void ll_deliver_faxstat(struct BCState *bcs, u_char status);
  34
  35static inline int
  36waitforHIA(struct IsdnCardState *cs, int timeout)
  37{
  38
  39        while ((cs->BC_Read_Reg(cs, 0, ISAR_HIA) & 1) && timeout) {
  40                udelay(1);
  41                timeout--;
  42        }
  43        if (!timeout)
  44                printk(KERN_WARNING "HiSax: ISAR waitforHIA timeout\n");
  45        return (timeout);
  46}
  47
  48
  49static int
  50sendmsg(struct IsdnCardState *cs, u_char his, u_char creg, u_char len,
  51        u_char *msg)
  52{
  53        int i;
  54
  55        if (!waitforHIA(cs, 4000))
  56                return (0);
  57#if DUMP_MBOXFRAME
  58        if (cs->debug & L1_DEB_HSCX)
  59                debugl1(cs, "sendmsg(%02x,%02x,%d)", his, creg, len);
  60#endif
  61        cs->BC_Write_Reg(cs, 0, ISAR_CTRL_H, creg);
  62        cs->BC_Write_Reg(cs, 0, ISAR_CTRL_L, len);
  63        cs->BC_Write_Reg(cs, 0, ISAR_WADR, 0);
  64        if (msg && len) {
  65                cs->BC_Write_Reg(cs, 1, ISAR_MBOX, msg[0]);
  66                for (i = 1; i < len; i++)
  67                        cs->BC_Write_Reg(cs, 2, ISAR_MBOX, msg[i]);
  68#if DUMP_MBOXFRAME > 1
  69                if (cs->debug & L1_DEB_HSCX_FIFO) {
  70                        char tmp[256], *t;
  71
  72                        i = len;
  73                        while (i > 0) {
  74                                t = tmp;
  75                                t += sprintf(t, "sendmbox cnt %d", len);
  76                                QuickHex(t, &msg[len-i], (i > 64) ? 64 : i);
  77                                debugl1(cs, "%s", tmp);
  78                                i -= 64;
  79                        }
  80                }
  81#endif
  82        }
  83        cs->BC_Write_Reg(cs, 1, ISAR_HIS, his);
  84        waitforHIA(cs, 10000);
  85        return (1);
  86}
  87
  88/* Call only with IRQ disabled !!! */
  89static inline void
  90rcv_mbox(struct IsdnCardState *cs, struct isar_reg *ireg, u_char *msg)
  91{
  92        int i;
  93
  94        cs->BC_Write_Reg(cs, 1, ISAR_RADR, 0);
  95        if (msg && ireg->clsb) {
  96                msg[0] = cs->BC_Read_Reg(cs, 1, ISAR_MBOX);
  97                for (i = 1; i < ireg->clsb; i++)
  98                        msg[i] = cs->BC_Read_Reg(cs, 2, ISAR_MBOX);
  99#if DUMP_MBOXFRAME > 1
 100                if (cs->debug & L1_DEB_HSCX_FIFO) {
 101                        char tmp[256], *t;
 102
 103                        i = ireg->clsb;
 104                        while (i > 0) {
 105                                t = tmp;
 106                                t += sprintf(t, "rcv_mbox cnt %d", ireg->clsb);
 107                                QuickHex(t, &msg[ireg->clsb - i], (i > 64) ? 64 : i);
 108                                debugl1(cs, "%s", tmp);
 109                                i -= 64;
 110                        }
 111                }
 112#endif
 113        }
 114        cs->BC_Write_Reg(cs, 1, ISAR_IIA, 0);
 115}
 116
 117/* Call only with IRQ disabled !!! */
 118static inline void
 119get_irq_infos(struct IsdnCardState *cs, struct isar_reg *ireg)
 120{
 121        ireg->iis = cs->BC_Read_Reg(cs, 1, ISAR_IIS);
 122        ireg->cmsb = cs->BC_Read_Reg(cs, 1, ISAR_CTRL_H);
 123        ireg->clsb = cs->BC_Read_Reg(cs, 1, ISAR_CTRL_L);
 124#if DUMP_MBOXFRAME
 125        if (cs->debug & L1_DEB_HSCX)
 126                debugl1(cs, "irq_stat(%02x,%02x,%d)", ireg->iis, ireg->cmsb,
 127                        ireg->clsb);
 128#endif
 129}
 130
 131static int
 132waitrecmsg(struct IsdnCardState *cs, u_char *len,
 133           u_char *msg, int maxdelay)
 134{
 135        int timeout = 0;
 136        struct isar_reg *ir = cs->bcs[0].hw.isar.reg;
 137
 138
 139        while ((!(cs->BC_Read_Reg(cs, 0, ISAR_IRQBIT) & ISAR_IRQSTA)) &&
 140              (timeout++ < maxdelay))
 141                udelay(1);
 142        if (timeout > maxdelay) {
 143                printk(KERN_WARNING"isar recmsg IRQSTA timeout\n");
 144                return (0);
 145        }
 146        get_irq_infos(cs, ir);
 147        rcv_mbox(cs, ir, msg);
 148        *len = ir->clsb;
 149        return (1);
 150}
 151
 152int
 153ISARVersion(struct IsdnCardState *cs, char *s)
 154{
 155        int ver;
 156        u_char msg[] = ISAR_MSG_HWVER;
 157        u_char tmp[64];
 158        u_char len;
 159        u_long flags;
 160        int debug;
 161
 162        cs->cardmsg(cs, CARD_RESET,  NULL);
 163        spin_lock_irqsave(&cs->lock, flags);
 164        /* disable ISAR IRQ */
 165        cs->BC_Write_Reg(cs, 0, ISAR_IRQBIT, 0);
 166        debug = cs->debug;
 167        cs->debug &= ~(L1_DEB_HSCX | L1_DEB_HSCX_FIFO);
 168        if (!sendmsg(cs, ISAR_HIS_VNR, 0, 3, msg)) {
 169                spin_unlock_irqrestore(&cs->lock, flags);
 170                return (-1);
 171        }
 172        if (!waitrecmsg(cs, &len, tmp, 100000)) {
 173                spin_unlock_irqrestore(&cs->lock, flags);
 174                return (-2);
 175        }
 176        cs->debug = debug;
 177        if (cs->bcs[0].hw.isar.reg->iis == ISAR_IIS_VNR) {
 178                if (len == 1) {
 179                        ver = tmp[0] & 0xf;
 180                        printk(KERN_INFO "%s ISAR version %d\n", s, ver);
 181                } else
 182                        ver = -3;
 183        } else
 184                ver = -4;
 185        spin_unlock_irqrestore(&cs->lock, flags);
 186        return (ver);
 187}
 188
 189static int
 190isar_load_firmware(struct IsdnCardState *cs, u_char __user *buf)
 191{
 192        int cfu_ret, ret, size, cnt, debug;
 193        u_char len, nom, noc;
 194        u_short sadr, left, *sp;
 195        u_char __user *p = buf;
 196        u_char *msg, *tmpmsg, *mp, tmp[64];
 197        u_long flags;
 198        struct isar_reg *ireg = cs->bcs[0].hw.isar.reg;
 199
 200        struct {u_short sadr;
 201                u_short len;
 202                u_short d_key;
 203        } blk_head;
 204
 205#define BLK_HEAD_SIZE 6
 206        if (1 != (ret = ISARVersion(cs, "Testing"))) {
 207                printk(KERN_ERR"isar_load_firmware wrong isar version %d\n", ret);
 208                return (1);
 209        }
 210        debug = cs->debug;
 211#if DBG_LOADFIRM < 2
 212        cs->debug &= ~(L1_DEB_HSCX | L1_DEB_HSCX_FIFO);
 213#endif
 214
 215        cfu_ret = copy_from_user(&size, p, sizeof(int));
 216        if (cfu_ret) {
 217                printk(KERN_ERR "isar_load_firmware copy_from_user ret %d\n", cfu_ret);
 218                return -EFAULT;
 219        }
 220        p += sizeof(int);
 221        printk(KERN_DEBUG"isar_load_firmware size: %d\n", size);
 222        cnt = 0;
 223        /* disable ISAR IRQ */
 224        cs->BC_Write_Reg(cs, 0, ISAR_IRQBIT, 0);
 225        if (!(msg = kmalloc(256, GFP_KERNEL))) {
 226                printk(KERN_ERR"isar_load_firmware no buffer\n");
 227                return (1);
 228        }
 229        if (!(tmpmsg = kmalloc(256, GFP_KERNEL))) {
 230                printk(KERN_ERR"isar_load_firmware no tmp buffer\n");
 231                kfree(msg);
 232                return (1);
 233        }
 234        spin_lock_irqsave(&cs->lock, flags);
 235        /* disable ISAR IRQ */
 236        cs->BC_Write_Reg(cs, 0, ISAR_IRQBIT, 0);
 237        spin_unlock_irqrestore(&cs->lock, flags);
 238        while (cnt < size) {
 239                if ((ret = copy_from_user(&blk_head, p, BLK_HEAD_SIZE))) {
 240                        printk(KERN_ERR"isar_load_firmware copy_from_user ret %d\n", ret);
 241                        goto reterror;
 242                }
 243#ifdef __BIG_ENDIAN
 244                sadr = (blk_head.sadr & 0xff) * 256 + blk_head.sadr / 256;
 245                blk_head.sadr = sadr;
 246                sadr = (blk_head.len & 0xff) * 256 + blk_head.len / 256;
 247                blk_head.len = sadr;
 248                sadr = (blk_head.d_key & 0xff) * 256 + blk_head.d_key / 256;
 249                blk_head.d_key = sadr;
 250#endif /* __BIG_ENDIAN */
 251                cnt += BLK_HEAD_SIZE;
 252                p += BLK_HEAD_SIZE;
 253                printk(KERN_DEBUG"isar firmware block (%#x,%5d,%#x)\n",
 254                       blk_head.sadr, blk_head.len, blk_head.d_key & 0xff);
 255                sadr = blk_head.sadr;
 256                left = blk_head.len;
 257                spin_lock_irqsave(&cs->lock, flags);
 258                if (!sendmsg(cs, ISAR_HIS_DKEY, blk_head.d_key & 0xff, 0, NULL)) {
 259                        printk(KERN_ERR"isar sendmsg dkey failed\n");
 260                        ret = 1; goto reterr_unlock;
 261                }
 262                if (!waitrecmsg(cs, &len, tmp, 100000)) {
 263                        printk(KERN_ERR"isar waitrecmsg dkey failed\n");
 264                        ret = 1; goto reterr_unlock;
 265                }
 266                if ((ireg->iis != ISAR_IIS_DKEY) || ireg->cmsb || len) {
 267                        printk(KERN_ERR"isar wrong dkey response (%x,%x,%x)\n",
 268                               ireg->iis, ireg->cmsb, len);
 269                        ret = 1; goto reterr_unlock;
 270                }
 271                spin_unlock_irqrestore(&cs->lock, flags);
 272                while (left > 0) {
 273                        if (left > 126)
 274                                noc = 126;
 275                        else
 276                                noc = left;
 277                        nom = 2 * noc;
 278                        mp  = msg;
 279                        *mp++ = sadr / 256;
 280                        *mp++ = sadr % 256;
 281                        left -= noc;
 282                        *mp++ = noc;
 283                        if ((ret = copy_from_user(tmpmsg, p, nom))) {
 284                                printk(KERN_ERR"isar_load_firmware copy_from_user ret %d\n", ret);
 285                                goto reterror;
 286                        }
 287                        p += nom;
 288                        cnt += nom;
 289                        nom += 3;
 290                        sp = (u_short *)tmpmsg;
 291#if DBG_LOADFIRM
 292                        printk(KERN_DEBUG"isar: load %3d words at %04x left %d\n",
 293                               noc, sadr, left);
 294#endif
 295                        sadr += noc;
 296                        while (noc) {
 297#ifdef __BIG_ENDIAN
 298                                *mp++ = *sp % 256;
 299                                *mp++ = *sp / 256;
 300#else
 301                                *mp++ = *sp / 256;
 302                                *mp++ = *sp % 256;
 303#endif /* __BIG_ENDIAN */
 304                                sp++;
 305                                noc--;
 306                        }
 307                        spin_lock_irqsave(&cs->lock, flags);
 308                        if (!sendmsg(cs, ISAR_HIS_FIRM, 0, nom, msg)) {
 309                                printk(KERN_ERR"isar sendmsg prog failed\n");
 310                                ret = 1; goto reterr_unlock;
 311                        }
 312                        if (!waitrecmsg(cs, &len, tmp, 100000)) {
 313                                printk(KERN_ERR"isar waitrecmsg prog failed\n");
 314                                ret = 1; goto reterr_unlock;
 315                        }
 316                        if ((ireg->iis != ISAR_IIS_FIRM) || ireg->cmsb || len) {
 317                                printk(KERN_ERR"isar wrong prog response (%x,%x,%x)\n",
 318                                       ireg->iis, ireg->cmsb, len);
 319                                ret = 1; goto reterr_unlock;
 320                        }
 321                        spin_unlock_irqrestore(&cs->lock, flags);
 322                }
 323                printk(KERN_DEBUG"isar firmware block %5d words loaded\n",
 324                       blk_head.len);
 325        }
 326        /* 10ms delay */
 327        cnt = 10;
 328        while (cnt--)
 329                udelay(1000);
 330        msg[0] = 0xff;
 331        msg[1] = 0xfe;
 332        ireg->bstat = 0;
 333        spin_lock_irqsave(&cs->lock, flags);
 334        if (!sendmsg(cs, ISAR_HIS_STDSP, 0, 2, msg)) {
 335                printk(KERN_ERR"isar sendmsg start dsp failed\n");
 336                ret = 1; goto reterr_unlock;
 337        }
 338        if (!waitrecmsg(cs, &len, tmp, 100000)) {
 339                printk(KERN_ERR"isar waitrecmsg start dsp failed\n");
 340                ret = 1; goto reterr_unlock;
 341        }
 342        if ((ireg->iis != ISAR_IIS_STDSP) || ireg->cmsb || len) {
 343                printk(KERN_ERR"isar wrong start dsp response (%x,%x,%x)\n",
 344                       ireg->iis, ireg->cmsb, len);
 345                ret = 1; goto reterr_unlock;
 346        } else
 347                printk(KERN_DEBUG"isar start dsp success\n");
 348        /* NORMAL mode entered */
 349        /* Enable IRQs of ISAR */
 350        cs->BC_Write_Reg(cs, 0, ISAR_IRQBIT, ISAR_IRQSTA);
 351        spin_unlock_irqrestore(&cs->lock, flags);
 352        cnt = 1000; /* max 1s */
 353        while ((!ireg->bstat) && cnt) {
 354                udelay(1000);
 355                cnt--;
 356        }
 357        if (!cnt) {
 358                printk(KERN_ERR"isar no general status event received\n");
 359                ret = 1; goto reterror;
 360        } else {
 361                printk(KERN_DEBUG"isar general status event %x\n",
 362                       ireg->bstat);
 363        }
 364        /* 10ms delay */
 365        cnt = 10;
 366        while (cnt--)
 367                udelay(1000);
 368        spin_lock_irqsave(&cs->lock, flags);
 369        ireg->iis = 0;
 370        if (!sendmsg(cs, ISAR_HIS_DIAG, ISAR_CTRL_STST, 0, NULL)) {
 371                printk(KERN_ERR"isar sendmsg self tst failed\n");
 372                ret = 1; goto reterr_unlock;
 373        }
 374        cnt = 10000; /* max 100 ms */
 375        spin_unlock_irqrestore(&cs->lock, flags);
 376        while ((ireg->iis != ISAR_IIS_DIAG) && cnt) {
 377                udelay(10);
 378                cnt--;
 379        }
 380        udelay(1000);
 381        if (!cnt) {
 382                printk(KERN_ERR"isar no self tst response\n");
 383                ret = 1; goto reterror;
 384        }
 385        if ((ireg->cmsb == ISAR_CTRL_STST) && (ireg->clsb == 1)
 386            && (ireg->par[0] == 0)) {
 387                printk(KERN_DEBUG"isar selftest OK\n");
 388        } else {
 389                printk(KERN_DEBUG"isar selftest not OK %x/%x/%x\n",
 390                       ireg->cmsb, ireg->clsb, ireg->par[0]);
 391                ret = 1; goto reterror;
 392        }
 393        spin_lock_irqsave(&cs->lock, flags);
 394        ireg->iis = 0;
 395        if (!sendmsg(cs, ISAR_HIS_DIAG, ISAR_CTRL_SWVER, 0, NULL)) {
 396                printk(KERN_ERR"isar RQST SVN failed\n");
 397                ret = 1; goto reterr_unlock;
 398        }
 399        spin_unlock_irqrestore(&cs->lock, flags);
 400        cnt = 30000; /* max 300 ms */
 401        while ((ireg->iis != ISAR_IIS_DIAG) && cnt) {
 402                udelay(10);
 403                cnt--;
 404        }
 405        udelay(1000);
 406        if (!cnt) {
 407                printk(KERN_ERR"isar no SVN response\n");
 408                ret = 1; goto reterror;
 409        } else {
 410                if ((ireg->cmsb == ISAR_CTRL_SWVER) && (ireg->clsb == 1))
 411                        printk(KERN_DEBUG"isar software version %#x\n",
 412                               ireg->par[0]);
 413                else {
 414                        printk(KERN_ERR"isar wrong swver response (%x,%x) cnt(%d)\n",
 415                               ireg->cmsb, ireg->clsb, cnt);
 416                        ret = 1; goto reterror;
 417                }
 418        }
 419        spin_lock_irqsave(&cs->lock, flags);
 420        cs->debug = debug;
 421        isar_setup(cs);
 422
 423        ret = 0;
 424reterr_unlock:
 425        spin_unlock_irqrestore(&cs->lock, flags);
 426reterror:
 427        cs->debug = debug;
 428        if (ret)
 429                /* disable ISAR IRQ */
 430                cs->BC_Write_Reg(cs, 0, ISAR_IRQBIT, 0);
 431        kfree(msg);
 432        kfree(tmpmsg);
 433        return (ret);
 434}
 435
 436#define B_LL_NOCARRIER  8
 437#define B_LL_CONNECT    9
 438#define B_LL_OK         10
 439
 440static void
 441isar_bh(struct work_struct *work)
 442{
 443        struct BCState *bcs = container_of(work, struct BCState, tqueue);
 444
 445        BChannel_bh(work);
 446        if (test_and_clear_bit(B_LL_NOCARRIER, &bcs->event))
 447                ll_deliver_faxstat(bcs, ISDN_FAX_CLASS1_NOCARR);
 448        if (test_and_clear_bit(B_LL_CONNECT, &bcs->event))
 449                ll_deliver_faxstat(bcs, ISDN_FAX_CLASS1_CONNECT);
 450        if (test_and_clear_bit(B_LL_OK, &bcs->event))
 451                ll_deliver_faxstat(bcs, ISDN_FAX_CLASS1_OK);
 452}
 453
 454static void
 455send_DLE_ETX(struct BCState *bcs)
 456{
 457        u_char dleetx[2] = {DLE, ETX};
 458        struct sk_buff *skb;
 459
 460        if ((skb = dev_alloc_skb(2))) {
 461                skb_put_data(skb, dleetx, 2);
 462                skb_queue_tail(&bcs->rqueue, skb);
 463                schedule_event(bcs, B_RCVBUFREADY);
 464        } else {
 465                printk(KERN_WARNING "HiSax: skb out of memory\n");
 466        }
 467}
 468
 469static inline int
 470dle_count(unsigned char *buf, int len)
 471{
 472        int count = 0;
 473
 474        while (len--)
 475                if (*buf++ == DLE)
 476                        count++;
 477        return count;
 478}
 479
 480static inline void
 481insert_dle(unsigned char *dest, unsigned char *src, int count) {
 482        /* <DLE> in input stream have to be flagged as <DLE><DLE> */
 483        while (count--) {
 484                *dest++ = *src;
 485                if (*src++ == DLE)
 486                        *dest++ = DLE;
 487        }
 488}
 489
 490static void
 491isar_rcv_frame(struct IsdnCardState *cs, struct BCState *bcs)
 492{
 493        u_char *ptr;
 494        struct sk_buff *skb;
 495        struct isar_reg *ireg = bcs->hw.isar.reg;
 496
 497        if (!ireg->clsb) {
 498                debugl1(cs, "isar zero len frame");
 499                cs->BC_Write_Reg(cs, 1, ISAR_IIA, 0);
 500                return;
 501        }
 502        switch (bcs->mode) {
 503        case L1_MODE_NULL:
 504                debugl1(cs, "isar mode 0 spurious IIS_RDATA %x/%x/%x",
 505                        ireg->iis, ireg->cmsb, ireg->clsb);
 506                printk(KERN_WARNING"isar mode 0 spurious IIS_RDATA %x/%x/%x\n",
 507                       ireg->iis, ireg->cmsb, ireg->clsb);
 508                cs->BC_Write_Reg(cs, 1, ISAR_IIA, 0);
 509                break;
 510        case L1_MODE_TRANS:
 511        case L1_MODE_V32:
 512                if ((skb = dev_alloc_skb(ireg->clsb))) {
 513                        rcv_mbox(cs, ireg, (u_char *)skb_put(skb, ireg->clsb));
 514                        skb_queue_tail(&bcs->rqueue, skb);
 515                        schedule_event(bcs, B_RCVBUFREADY);
 516                } else {
 517                        printk(KERN_WARNING "HiSax: skb out of memory\n");
 518                        cs->BC_Write_Reg(cs, 1, ISAR_IIA, 0);
 519                }
 520                break;
 521        case L1_MODE_HDLC:
 522                if ((bcs->hw.isar.rcvidx + ireg->clsb) > HSCX_BUFMAX) {
 523                        if (cs->debug & L1_DEB_WARN)
 524                                debugl1(cs, "isar_rcv_frame: incoming packet too large");
 525                        cs->BC_Write_Reg(cs, 1, ISAR_IIA, 0);
 526                        bcs->hw.isar.rcvidx = 0;
 527                } else if (ireg->cmsb & HDLC_ERROR) {
 528                        if (cs->debug & L1_DEB_WARN)
 529                                debugl1(cs, "isar frame error %x len %d",
 530                                        ireg->cmsb, ireg->clsb);
 531#ifdef ERROR_STATISTIC
 532                        if (ireg->cmsb & HDLC_ERR_RER)
 533                                bcs->err_inv++;
 534                        if (ireg->cmsb & HDLC_ERR_CER)
 535                                bcs->err_crc++;
 536#endif
 537                        bcs->hw.isar.rcvidx = 0;
 538                        cs->BC_Write_Reg(cs, 1, ISAR_IIA, 0);
 539                } else {
 540                        if (ireg->cmsb & HDLC_FSD)
 541                                bcs->hw.isar.rcvidx = 0;
 542                        ptr = bcs->hw.isar.rcvbuf + bcs->hw.isar.rcvidx;
 543                        bcs->hw.isar.rcvidx += ireg->clsb;
 544                        rcv_mbox(cs, ireg, ptr);
 545                        if (ireg->cmsb & HDLC_FED) {
 546                                if (bcs->hw.isar.rcvidx < 3) { /* last 2 bytes are the FCS */
 547                                        if (cs->debug & L1_DEB_WARN)
 548                                                debugl1(cs, "isar frame to short %d",
 549                                                        bcs->hw.isar.rcvidx);
 550                                } else if (!(skb = dev_alloc_skb(bcs->hw.isar.rcvidx - 2))) {
 551                                        printk(KERN_WARNING "ISAR: receive out of memory\n");
 552                                } else {
 553                                        skb_put_data(skb, bcs->hw.isar.rcvbuf,
 554                                                     bcs->hw.isar.rcvidx - 2);
 555                                        skb_queue_tail(&bcs->rqueue, skb);
 556                                        schedule_event(bcs, B_RCVBUFREADY);
 557                                }
 558                                bcs->hw.isar.rcvidx = 0;
 559                        }
 560                }
 561                break;
 562        case L1_MODE_FAX:
 563                if (bcs->hw.isar.state != STFAX_ACTIV) {
 564                        if (cs->debug & L1_DEB_WARN)
 565                                debugl1(cs, "isar_rcv_frame: not ACTIV");
 566                        cs->BC_Write_Reg(cs, 1, ISAR_IIA, 0);
 567                        bcs->hw.isar.rcvidx = 0;
 568                        break;
 569                }
 570                if (bcs->hw.isar.cmd == PCTRL_CMD_FRM) {
 571                        rcv_mbox(cs, ireg, bcs->hw.isar.rcvbuf);
 572                        bcs->hw.isar.rcvidx = ireg->clsb +
 573                                dle_count(bcs->hw.isar.rcvbuf, ireg->clsb);
 574                        if (cs->debug & L1_DEB_HSCX)
 575                                debugl1(cs, "isar_rcv_frame: raw(%d) dle(%d)",
 576                                        ireg->clsb, bcs->hw.isar.rcvidx);
 577                        if ((skb = dev_alloc_skb(bcs->hw.isar.rcvidx))) {
 578                                insert_dle((u_char *)skb_put(skb, bcs->hw.isar.rcvidx),
 579                                           bcs->hw.isar.rcvbuf, ireg->clsb);
 580                                skb_queue_tail(&bcs->rqueue, skb);
 581                                schedule_event(bcs, B_RCVBUFREADY);
 582                                if (ireg->cmsb & SART_NMD) { /* ABORT */
 583                                        if (cs->debug & L1_DEB_WARN)
 584                                                debugl1(cs, "isar_rcv_frame: no more data");
 585                                        bcs->hw.isar.rcvidx = 0;
 586                                        send_DLE_ETX(bcs);
 587                                        sendmsg(cs, SET_DPS(bcs->hw.isar.dpath) |
 588                                                ISAR_HIS_PUMPCTRL, PCTRL_CMD_ESC,
 589                                                0, NULL);
 590                                        bcs->hw.isar.state = STFAX_ESCAPE;
 591                                        schedule_event(bcs, B_LL_NOCARRIER);
 592                                }
 593                        } else {
 594                                printk(KERN_WARNING "HiSax: skb out of memory\n");
 595                        }
 596                        break;
 597                }
 598                if (bcs->hw.isar.cmd != PCTRL_CMD_FRH) {
 599                        if (cs->debug & L1_DEB_WARN)
 600                                debugl1(cs, "isar_rcv_frame: unknown fax mode %x",
 601                                        bcs->hw.isar.cmd);
 602                        cs->BC_Write_Reg(cs, 1, ISAR_IIA, 0);
 603                        bcs->hw.isar.rcvidx = 0;
 604                        break;
 605                }
 606                /* PCTRL_CMD_FRH */
 607                if ((bcs->hw.isar.rcvidx + ireg->clsb) > HSCX_BUFMAX) {
 608                        if (cs->debug & L1_DEB_WARN)
 609                                debugl1(cs, "isar_rcv_frame: incoming packet too large");
 610                        cs->BC_Write_Reg(cs, 1, ISAR_IIA, 0);
 611                        bcs->hw.isar.rcvidx = 0;
 612                } else if (ireg->cmsb & HDLC_ERROR) {
 613                        if (cs->debug & L1_DEB_WARN)
 614                                debugl1(cs, "isar frame error %x len %d",
 615                                        ireg->cmsb, ireg->clsb);
 616                        bcs->hw.isar.rcvidx = 0;
 617                        cs->BC_Write_Reg(cs, 1, ISAR_IIA, 0);
 618                } else {
 619                        if (ireg->cmsb & HDLC_FSD) {
 620                                bcs->hw.isar.rcvidx = 0;
 621                        }
 622                        ptr = bcs->hw.isar.rcvbuf + bcs->hw.isar.rcvidx;
 623                        bcs->hw.isar.rcvidx += ireg->clsb;
 624                        rcv_mbox(cs, ireg, ptr);
 625                        if (ireg->cmsb & HDLC_FED) {
 626                                int len = bcs->hw.isar.rcvidx +
 627                                        dle_count(bcs->hw.isar.rcvbuf, bcs->hw.isar.rcvidx);
 628                                if (bcs->hw.isar.rcvidx < 3) { /* last 2 bytes are the FCS */
 629                                        if (cs->debug & L1_DEB_WARN)
 630                                                debugl1(cs, "isar frame to short %d",
 631                                                        bcs->hw.isar.rcvidx);
 632                                        printk(KERN_WARNING "ISAR: frame to short %d\n",
 633                                               bcs->hw.isar.rcvidx);
 634                                } else if (!(skb = dev_alloc_skb(len))) {
 635                                        printk(KERN_WARNING "ISAR: receive out of memory\n");
 636                                } else {
 637                                        insert_dle((u_char *)skb_put(skb, len),
 638                                                   bcs->hw.isar.rcvbuf,
 639                                                   bcs->hw.isar.rcvidx);
 640                                        skb_queue_tail(&bcs->rqueue, skb);
 641                                        schedule_event(bcs, B_RCVBUFREADY);
 642                                        send_DLE_ETX(bcs);
 643                                        schedule_event(bcs, B_LL_OK);
 644                                        test_and_clear_bit(BC_FLG_FRH_WAIT, &bcs->Flag);
 645                                }
 646                                bcs->hw.isar.rcvidx = 0;
 647                        }
 648                }
 649                if (ireg->cmsb & SART_NMD) { /* ABORT */
 650                        if (cs->debug & L1_DEB_WARN)
 651                                debugl1(cs, "isar_rcv_frame: no more data");
 652                        bcs->hw.isar.rcvidx = 0;
 653                        sendmsg(cs, SET_DPS(bcs->hw.isar.dpath) |
 654                                ISAR_HIS_PUMPCTRL, PCTRL_CMD_ESC, 0, NULL);
 655                        bcs->hw.isar.state = STFAX_ESCAPE;
 656                        if (test_and_clear_bit(BC_FLG_FRH_WAIT, &bcs->Flag)) {
 657                                send_DLE_ETX(bcs);
 658                                schedule_event(bcs, B_LL_NOCARRIER);
 659                        }
 660                }
 661                break;
 662        default:
 663                printk(KERN_ERR"isar_rcv_frame mode (%x)error\n", bcs->mode);
 664                cs->BC_Write_Reg(cs, 1, ISAR_IIA, 0);
 665                break;
 666        }
 667}
 668
 669void
 670isar_fill_fifo(struct BCState *bcs)
 671{
 672        struct IsdnCardState *cs = bcs->cs;
 673        int count;
 674        u_char msb;
 675        u_char *ptr;
 676
 677        if ((cs->debug & L1_DEB_HSCX) && !(cs->debug & L1_DEB_HSCX_FIFO))
 678                debugl1(cs, "isar_fill_fifo");
 679        if (!bcs->tx_skb)
 680                return;
 681        if (bcs->tx_skb->len <= 0)
 682                return;
 683        if (!(bcs->hw.isar.reg->bstat &
 684              (bcs->hw.isar.dpath == 1 ? BSTAT_RDM1 : BSTAT_RDM2)))
 685                return;
 686        if (bcs->tx_skb->len > bcs->hw.isar.mml) {
 687                msb = 0;
 688                count = bcs->hw.isar.mml;
 689        } else {
 690                count = bcs->tx_skb->len;
 691                msb = HDLC_FED;
 692        }
 693        ptr = bcs->tx_skb->data;
 694        if (!bcs->hw.isar.txcnt) {
 695                msb |= HDLC_FST;
 696                if ((bcs->mode == L1_MODE_FAX) &&
 697                    (bcs->hw.isar.cmd == PCTRL_CMD_FTH)) {
 698                        if (bcs->tx_skb->len > 1) {
 699                                if ((ptr[0] == 0xff) && (ptr[1] == 0x13))
 700                                        /* last frame */
 701                                        test_and_set_bit(BC_FLG_LASTDATA,
 702                                                         &bcs->Flag);
 703                        }
 704                }
 705        }
 706        skb_pull(bcs->tx_skb, count);
 707        bcs->tx_cnt -= count;
 708        bcs->hw.isar.txcnt += count;
 709        switch (bcs->mode) {
 710        case L1_MODE_NULL:
 711                printk(KERN_ERR"isar_fill_fifo wrong mode 0\n");
 712                break;
 713        case L1_MODE_TRANS:
 714        case L1_MODE_V32:
 715                sendmsg(cs, SET_DPS(bcs->hw.isar.dpath) | ISAR_HIS_SDATA,
 716                        0, count, ptr);
 717                break;
 718        case L1_MODE_HDLC:
 719                sendmsg(cs, SET_DPS(bcs->hw.isar.dpath) | ISAR_HIS_SDATA,
 720                        msb, count, ptr);
 721                break;
 722        case L1_MODE_FAX:
 723                if (bcs->hw.isar.state != STFAX_ACTIV) {
 724                        if (cs->debug & L1_DEB_WARN)
 725                                debugl1(cs, "isar_fill_fifo: not ACTIV");
 726                } else if (bcs->hw.isar.cmd == PCTRL_CMD_FTH) {
 727                        sendmsg(cs, SET_DPS(bcs->hw.isar.dpath) | ISAR_HIS_SDATA,
 728                                msb, count, ptr);
 729                } else if (bcs->hw.isar.cmd == PCTRL_CMD_FTM) {
 730                        sendmsg(cs, SET_DPS(bcs->hw.isar.dpath) | ISAR_HIS_SDATA,
 731                                0, count, ptr);
 732                } else {
 733                        if (cs->debug & L1_DEB_WARN)
 734                                debugl1(cs, "isar_fill_fifo: not FTH/FTM");
 735                }
 736                break;
 737        default:
 738                if (cs->debug)
 739                        debugl1(cs, "isar_fill_fifo mode(%x) error", bcs->mode);
 740                printk(KERN_ERR"isar_fill_fifo mode(%x) error\n", bcs->mode);
 741                break;
 742        }
 743}
 744
 745static inline
 746struct BCState *sel_bcs_isar(struct IsdnCardState *cs, u_char dpath)
 747{
 748        if ((!dpath) || (dpath == 3))
 749                return (NULL);
 750        if (cs->bcs[0].hw.isar.dpath == dpath)
 751                return (&cs->bcs[0]);
 752        if (cs->bcs[1].hw.isar.dpath == dpath)
 753                return (&cs->bcs[1]);
 754        return (NULL);
 755}
 756
 757static void
 758send_frames(struct BCState *bcs)
 759{
 760        if (bcs->tx_skb) {
 761                if (bcs->tx_skb->len) {
 762                        isar_fill_fifo(bcs);
 763                        return;
 764                } else {
 765                        if (test_bit(FLG_LLI_L1WAKEUP, &bcs->st->lli.flag) &&
 766                            (PACKET_NOACK != bcs->tx_skb->pkt_type)) {
 767                                u_long  flags;
 768                                spin_lock_irqsave(&bcs->aclock, flags);
 769                                bcs->ackcnt += bcs->hw.isar.txcnt;
 770                                spin_unlock_irqrestore(&bcs->aclock, flags);
 771                                schedule_event(bcs, B_ACKPENDING);
 772                        }
 773                        if (bcs->mode == L1_MODE_FAX) {
 774                                if (bcs->hw.isar.cmd == PCTRL_CMD_FTH) {
 775                                        if (test_bit(BC_FLG_LASTDATA, &bcs->Flag)) {
 776                                                test_and_set_bit(BC_FLG_NMD_DATA, &bcs->Flag);
 777                                        }
 778                                } else if (bcs->hw.isar.cmd == PCTRL_CMD_FTM) {
 779                                        if (test_bit(BC_FLG_DLEETX, &bcs->Flag)) {
 780                                                test_and_set_bit(BC_FLG_LASTDATA, &bcs->Flag);
 781                                                test_and_set_bit(BC_FLG_NMD_DATA, &bcs->Flag);
 782                                        }
 783                                }
 784                        }
 785                        dev_kfree_skb_any(bcs->tx_skb);
 786                        bcs->hw.isar.txcnt = 0;
 787                        bcs->tx_skb = NULL;
 788                }
 789        }
 790        if ((bcs->tx_skb = skb_dequeue(&bcs->squeue))) {
 791                bcs->hw.isar.txcnt = 0;
 792                test_and_set_bit(BC_FLG_BUSY, &bcs->Flag);
 793                isar_fill_fifo(bcs);
 794        } else {
 795                if (test_and_clear_bit(BC_FLG_DLEETX, &bcs->Flag)) {
 796                        if (test_and_clear_bit(BC_FLG_LASTDATA, &bcs->Flag)) {
 797                                if (test_and_clear_bit(BC_FLG_NMD_DATA, &bcs->Flag)) {
 798                                        u_char dummy = 0;
 799                                        sendmsg(bcs->cs, SET_DPS(bcs->hw.isar.dpath) |
 800                                                ISAR_HIS_SDATA, 0x01, 1, &dummy);
 801                                }
 802                                test_and_set_bit(BC_FLG_LL_OK, &bcs->Flag);
 803                        } else {
 804                                schedule_event(bcs, B_LL_CONNECT);
 805                        }
 806                }
 807                test_and_clear_bit(BC_FLG_BUSY, &bcs->Flag);
 808                schedule_event(bcs, B_XMTBUFREADY);
 809        }
 810}
 811
 812static inline void
 813check_send(struct IsdnCardState *cs, u_char rdm)
 814{
 815        struct BCState *bcs;
 816
 817        if (rdm & BSTAT_RDM1) {
 818                if ((bcs = sel_bcs_isar(cs, 1))) {
 819                        if (bcs->mode) {
 820                                send_frames(bcs);
 821                        }
 822                }
 823        }
 824        if (rdm & BSTAT_RDM2) {
 825                if ((bcs = sel_bcs_isar(cs, 2))) {
 826                        if (bcs->mode) {
 827                                send_frames(bcs);
 828                        }
 829                }
 830        }
 831
 832}
 833
 834static const char *dmril[] = {"NO SPEED", "1200/75", "NODEF2", "75/1200",
 835                              "NODEF4", "300", "600", "1200", "2400",
 836                              "4800", "7200", "9600nt", "9600t", "12000",
 837                              "14400", "WRONG"};
 838static const char *dmrim[] = {"NO MOD", "NO DEF", "V32/V32b", "V22", "V21",
 839                              "Bell103", "V23", "Bell202", "V17", "V29",
 840                              "V27ter"};
 841
 842static void
 843isar_pump_status_rsp(struct BCState *bcs, struct isar_reg *ireg) {
 844        struct IsdnCardState *cs = bcs->cs;
 845        u_char ril = ireg->par[0];
 846        u_char rim;
 847
 848        if (!test_and_clear_bit(ISAR_RATE_REQ, &bcs->hw.isar.reg->Flags))
 849                return;
 850        if (ril > 14) {
 851                if (cs->debug & L1_DEB_WARN)
 852                        debugl1(cs, "wrong pstrsp ril=%d", ril);
 853                ril = 15;
 854        }
 855        switch (ireg->par[1]) {
 856        case 0:
 857                rim = 0;
 858                break;
 859        case 0x20:
 860                rim = 2;
 861                break;
 862        case 0x40:
 863                rim = 3;
 864                break;
 865        case 0x41:
 866                rim = 4;
 867                break;
 868        case 0x51:
 869                rim = 5;
 870                break;
 871        case 0x61:
 872                rim = 6;
 873                break;
 874        case 0x71:
 875                rim = 7;
 876                break;
 877        case 0x82:
 878                rim = 8;
 879                break;
 880        case 0x92:
 881                rim = 9;
 882                break;
 883        case 0xa2:
 884                rim = 10;
 885                break;
 886        default:
 887                rim = 1;
 888                break;
 889        }
 890        sprintf(bcs->hw.isar.conmsg, "%s %s", dmril[ril], dmrim[rim]);
 891        bcs->conmsg = bcs->hw.isar.conmsg;
 892        if (cs->debug & L1_DEB_HSCX)
 893                debugl1(cs, "pump strsp %s", bcs->conmsg);
 894}
 895
 896static void
 897isar_pump_statev_modem(struct BCState *bcs, u_char devt) {
 898        struct IsdnCardState *cs = bcs->cs;
 899        u_char dps = SET_DPS(bcs->hw.isar.dpath);
 900
 901        switch (devt) {
 902        case PSEV_10MS_TIMER:
 903                if (cs->debug & L1_DEB_HSCX)
 904                        debugl1(cs, "pump stev TIMER");
 905                break;
 906        case PSEV_CON_ON:
 907                if (cs->debug & L1_DEB_HSCX)
 908                        debugl1(cs, "pump stev CONNECT");
 909                l1_msg_b(bcs->st, PH_ACTIVATE | REQUEST, NULL);
 910                break;
 911        case PSEV_CON_OFF:
 912                if (cs->debug & L1_DEB_HSCX)
 913                        debugl1(cs, "pump stev NO CONNECT");
 914                sendmsg(cs, dps | ISAR_HIS_PSTREQ, 0, 0, NULL);
 915                l1_msg_b(bcs->st, PH_DEACTIVATE | REQUEST, NULL);
 916                break;
 917        case PSEV_V24_OFF:
 918                if (cs->debug & L1_DEB_HSCX)
 919                        debugl1(cs, "pump stev V24 OFF");
 920                break;
 921        case PSEV_CTS_ON:
 922                if (cs->debug & L1_DEB_HSCX)
 923                        debugl1(cs, "pump stev CTS ON");
 924                break;
 925        case PSEV_CTS_OFF:
 926                if (cs->debug & L1_DEB_HSCX)
 927                        debugl1(cs, "pump stev CTS OFF");
 928                break;
 929        case PSEV_DCD_ON:
 930                if (cs->debug & L1_DEB_HSCX)
 931                        debugl1(cs, "pump stev CARRIER ON");
 932                test_and_set_bit(ISAR_RATE_REQ, &bcs->hw.isar.reg->Flags);
 933                sendmsg(cs, dps | ISAR_HIS_PSTREQ, 0, 0, NULL);
 934                break;
 935        case PSEV_DCD_OFF:
 936                if (cs->debug & L1_DEB_HSCX)
 937                        debugl1(cs, "pump stev CARRIER OFF");
 938                break;
 939        case PSEV_DSR_ON:
 940                if (cs->debug & L1_DEB_HSCX)
 941                        debugl1(cs, "pump stev DSR ON");
 942                break;
 943        case PSEV_DSR_OFF:
 944                if (cs->debug & L1_DEB_HSCX)
 945                        debugl1(cs, "pump stev DSR_OFF");
 946                break;
 947        case PSEV_REM_RET:
 948                if (cs->debug & L1_DEB_HSCX)
 949                        debugl1(cs, "pump stev REMOTE RETRAIN");
 950                break;
 951        case PSEV_REM_REN:
 952                if (cs->debug & L1_DEB_HSCX)
 953                        debugl1(cs, "pump stev REMOTE RENEGOTIATE");
 954                break;
 955        case PSEV_GSTN_CLR:
 956                if (cs->debug & L1_DEB_HSCX)
 957                        debugl1(cs, "pump stev GSTN CLEAR");
 958                break;
 959        default:
 960                if (cs->debug & L1_DEB_HSCX)
 961                        debugl1(cs, "unknown pump stev %x", devt);
 962                break;
 963        }
 964}
 965
 966static void
 967ll_deliver_faxstat(struct BCState *bcs, u_char status)
 968{
 969        isdn_ctrl ic;
 970        struct Channel *chanp = (struct Channel *) bcs->st->lli.userdata;
 971
 972        if (bcs->cs->debug & L1_DEB_HSCX)
 973                debugl1(bcs->cs, "HL->LL FAXIND %x", status);
 974        ic.driver = bcs->cs->myid;
 975        ic.command = ISDN_STAT_FAXIND;
 976        ic.arg = chanp->chan;
 977        ic.parm.aux.cmd = status;
 978        bcs->cs->iif.statcallb(&ic);
 979}
 980
 981static void
 982isar_pump_statev_fax(struct BCState *bcs, u_char devt) {
 983        struct IsdnCardState *cs = bcs->cs;
 984        u_char dps = SET_DPS(bcs->hw.isar.dpath);
 985        u_char p1;
 986
 987        switch (devt) {
 988        case PSEV_10MS_TIMER:
 989                if (cs->debug & L1_DEB_HSCX)
 990                        debugl1(cs, "pump stev TIMER");
 991                break;
 992        case PSEV_RSP_READY:
 993                if (cs->debug & L1_DEB_HSCX)
 994                        debugl1(cs, "pump stev RSP_READY");
 995                bcs->hw.isar.state = STFAX_READY;
 996                l1_msg_b(bcs->st, PH_ACTIVATE | REQUEST, NULL);
 997                if (test_bit(BC_FLG_ORIG, &bcs->Flag)) {
 998                        isar_pump_cmd(bcs, ISDN_FAX_CLASS1_FRH, 3);
 999                } else {
1000                        isar_pump_cmd(bcs, ISDN_FAX_CLASS1_FTH, 3);
1001                }
1002                break;
1003        case PSEV_LINE_TX_H:
1004                if (bcs->hw.isar.state == STFAX_LINE) {
1005                        if (cs->debug & L1_DEB_HSCX)
1006                                debugl1(cs, "pump stev LINE_TX_H");
1007                        bcs->hw.isar.state = STFAX_CONT;
1008                        sendmsg(cs, dps | ISAR_HIS_PUMPCTRL, PCTRL_CMD_CONT, 0, NULL);
1009                } else {
1010                        if (cs->debug & L1_DEB_WARN)
1011                                debugl1(cs, "pump stev LINE_TX_H wrong st %x",
1012                                        bcs->hw.isar.state);
1013                }
1014                break;
1015        case PSEV_LINE_RX_H:
1016                if (bcs->hw.isar.state == STFAX_LINE) {
1017                        if (cs->debug & L1_DEB_HSCX)
1018                                debugl1(cs, "pump stev LINE_RX_H");
1019                        bcs->hw.isar.state = STFAX_CONT;
1020                        sendmsg(cs, dps | ISAR_HIS_PUMPCTRL, PCTRL_CMD_CONT, 0, NULL);
1021                } else {
1022                        if (cs->debug & L1_DEB_WARN)
1023                                debugl1(cs, "pump stev LINE_RX_H wrong st %x",
1024                                        bcs->hw.isar.state);
1025                }
1026                break;
1027        case PSEV_LINE_TX_B:
1028                if (bcs->hw.isar.state == STFAX_LINE) {
1029                        if (cs->debug & L1_DEB_HSCX)
1030                                debugl1(cs, "pump stev LINE_TX_B");
1031                        bcs->hw.isar.state = STFAX_CONT;
1032                        sendmsg(cs, dps | ISAR_HIS_PUMPCTRL, PCTRL_CMD_CONT, 0, NULL);
1033                } else {
1034                        if (cs->debug & L1_DEB_WARN)
1035                                debugl1(cs, "pump stev LINE_TX_B wrong st %x",
1036                                        bcs->hw.isar.state);
1037                }
1038                break;
1039        case PSEV_LINE_RX_B:
1040                if (bcs->hw.isar.state == STFAX_LINE) {
1041                        if (cs->debug & L1_DEB_HSCX)
1042                                debugl1(cs, "pump stev LINE_RX_B");
1043                        bcs->hw.isar.state = STFAX_CONT;
1044                        sendmsg(cs, dps | ISAR_HIS_PUMPCTRL, PCTRL_CMD_CONT, 0, NULL);
1045                } else {
1046                        if (cs->debug & L1_DEB_WARN)
1047                                debugl1(cs, "pump stev LINE_RX_B wrong st %x",
1048                                        bcs->hw.isar.state);
1049                }
1050                break;
1051        case PSEV_RSP_CONN:
1052                if (bcs->hw.isar.state == STFAX_CONT) {
1053                        if (cs->debug & L1_DEB_HSCX)
1054                                debugl1(cs, "pump stev RSP_CONN");
1055                        bcs->hw.isar.state = STFAX_ACTIV;
1056                        test_and_set_bit(ISAR_RATE_REQ, &bcs->hw.isar.reg->Flags);
1057                        sendmsg(cs, dps | ISAR_HIS_PSTREQ, 0, 0, NULL);
1058                        if (bcs->hw.isar.cmd == PCTRL_CMD_FTH) {
1059                                /* 1s Flags before data */
1060                                if (test_and_set_bit(BC_FLG_FTI_RUN, &bcs->Flag))
1061                                        del_timer(&bcs->hw.isar.ftimer);
1062                                /* 1000 ms */
1063                                bcs->hw.isar.ftimer.expires =
1064                                        jiffies + ((1000 * HZ) / 1000);
1065                                test_and_set_bit(BC_FLG_LL_CONN,
1066                                                 &bcs->Flag);
1067                                add_timer(&bcs->hw.isar.ftimer);
1068                        } else {
1069                                schedule_event(bcs, B_LL_CONNECT);
1070                        }
1071                } else {
1072                        if (cs->debug & L1_DEB_WARN)
1073                                debugl1(cs, "pump stev RSP_CONN wrong st %x",
1074                                        bcs->hw.isar.state);
1075                }
1076                break;
1077        case PSEV_FLAGS_DET:
1078                if (cs->debug & L1_DEB_HSCX)
1079                        debugl1(cs, "pump stev FLAGS_DET");
1080                break;
1081        case PSEV_RSP_DISC:
1082                if (cs->debug & L1_DEB_HSCX)
1083                        debugl1(cs, "pump stev RSP_DISC");
1084                if (bcs->hw.isar.state == STFAX_ESCAPE) {
1085                        p1 = 5;
1086                        switch (bcs->hw.isar.newcmd) {
1087                        case 0:
1088                                bcs->hw.isar.state = STFAX_READY;
1089                                break;
1090                        case PCTRL_CMD_FTM:
1091                                p1 = 2;
1092                                /* fall through */
1093                        case PCTRL_CMD_FTH:
1094                                sendmsg(cs, dps | ISAR_HIS_PUMPCTRL,
1095                                        PCTRL_CMD_SILON, 1, &p1);
1096                                bcs->hw.isar.state = STFAX_SILDET;
1097                                break;
1098                        case PCTRL_CMD_FRM:
1099                                if (frm_extra_delay)
1100                                        mdelay(frm_extra_delay);
1101                                /* fall through */
1102                        case PCTRL_CMD_FRH:
1103                                p1 = bcs->hw.isar.mod = bcs->hw.isar.newmod;
1104                                bcs->hw.isar.newmod = 0;
1105                                bcs->hw.isar.cmd = bcs->hw.isar.newcmd;
1106                                bcs->hw.isar.newcmd = 0;
1107                                sendmsg(cs, dps | ISAR_HIS_PUMPCTRL,
1108                                        bcs->hw.isar.cmd, 1, &p1);
1109                                bcs->hw.isar.state = STFAX_LINE;
1110                                bcs->hw.isar.try_mod = 3;
1111                                break;
1112                        default:
1113                                if (cs->debug & L1_DEB_HSCX)
1114                                        debugl1(cs, "RSP_DISC unknown newcmd %x", bcs->hw.isar.newcmd);
1115                                break;
1116                        }
1117                } else if (bcs->hw.isar.state == STFAX_ACTIV) {
1118                        if (test_and_clear_bit(BC_FLG_LL_OK, &bcs->Flag)) {
1119                                schedule_event(bcs, B_LL_OK);
1120                        } else if (bcs->hw.isar.cmd == PCTRL_CMD_FRM) {
1121                                send_DLE_ETX(bcs);
1122                                schedule_event(bcs, B_LL_NOCARRIER);
1123                        } else {
1124                                ll_deliver_faxstat(bcs, ISDN_FAX_CLASS1_FCERROR);
1125                        }
1126                        bcs->hw.isar.state = STFAX_READY;
1127                } else {
1128                        bcs->hw.isar.state = STFAX_READY;
1129                        ll_deliver_faxstat(bcs, ISDN_FAX_CLASS1_FCERROR);
1130                }
1131                break;
1132        case PSEV_RSP_SILDET:
1133                if (cs->debug & L1_DEB_HSCX)
1134                        debugl1(cs, "pump stev RSP_SILDET");
1135                if (bcs->hw.isar.state == STFAX_SILDET) {
1136                        p1 = bcs->hw.isar.mod = bcs->hw.isar.newmod;
1137                        bcs->hw.isar.newmod = 0;
1138                        bcs->hw.isar.cmd = bcs->hw.isar.newcmd;
1139                        bcs->hw.isar.newcmd = 0;
1140                        sendmsg(cs, dps | ISAR_HIS_PUMPCTRL,
1141                                bcs->hw.isar.cmd, 1, &p1);
1142                        bcs->hw.isar.state = STFAX_LINE;
1143                        bcs->hw.isar.try_mod = 3;
1144                }
1145                break;
1146        case PSEV_RSP_SILOFF:
1147                if (cs->debug & L1_DEB_HSCX)
1148                        debugl1(cs, "pump stev RSP_SILOFF");
1149                break;
1150        case PSEV_RSP_FCERR:
1151                if (bcs->hw.isar.state == STFAX_LINE) {
1152                        if (cs->debug & L1_DEB_HSCX)
1153                                debugl1(cs, "pump stev RSP_FCERR try %d",
1154                                        bcs->hw.isar.try_mod);
1155                        if (bcs->hw.isar.try_mod--) {
1156                                sendmsg(cs, dps | ISAR_HIS_PUMPCTRL,
1157                                        bcs->hw.isar.cmd, 1,
1158                                        &bcs->hw.isar.mod);
1159                                break;
1160                        }
1161                }
1162                if (cs->debug & L1_DEB_HSCX)
1163                        debugl1(cs, "pump stev RSP_FCERR");
1164                bcs->hw.isar.state = STFAX_ESCAPE;
1165                sendmsg(cs, dps | ISAR_HIS_PUMPCTRL, PCTRL_CMD_ESC, 0, NULL);
1166                ll_deliver_faxstat(bcs, ISDN_FAX_CLASS1_FCERROR);
1167                break;
1168        default:
1169                break;
1170        }
1171}
1172
1173static char debbuf[128];
1174
1175void
1176isar_int_main(struct IsdnCardState *cs)
1177{
1178        struct isar_reg *ireg = cs->bcs[0].hw.isar.reg;
1179        struct BCState *bcs;
1180
1181        get_irq_infos(cs, ireg);
1182        switch (ireg->iis & ISAR_IIS_MSCMSD) {
1183        case ISAR_IIS_RDATA:
1184                if ((bcs = sel_bcs_isar(cs, ireg->iis >> 6))) {
1185                        isar_rcv_frame(cs, bcs);
1186                } else {
1187                        debugl1(cs, "isar spurious IIS_RDATA %x/%x/%x",
1188                                ireg->iis, ireg->cmsb, ireg->clsb);
1189                        cs->BC_Write_Reg(cs, 1, ISAR_IIA, 0);
1190                }
1191                break;
1192        case ISAR_IIS_GSTEV:
1193                cs->BC_Write_Reg(cs, 1, ISAR_IIA, 0);
1194                ireg->bstat |= ireg->cmsb;
1195                check_send(cs, ireg->cmsb);
1196                break;
1197        case ISAR_IIS_BSTEV:
1198#ifdef ERROR_STATISTIC
1199                if ((bcs = sel_bcs_isar(cs, ireg->iis >> 6))) {
1200                        if (ireg->cmsb == BSTEV_TBO)
1201                                bcs->err_tx++;
1202                        if (ireg->cmsb == BSTEV_RBO)
1203                                bcs->err_rdo++;
1204                }
1205#endif
1206                if (cs->debug & L1_DEB_WARN)
1207                        debugl1(cs, "Buffer STEV dpath%d msb(%x)",
1208                                ireg->iis >> 6, ireg->cmsb);
1209                cs->BC_Write_Reg(cs, 1, ISAR_IIA, 0);
1210                break;
1211        case ISAR_IIS_PSTEV:
1212                if ((bcs = sel_bcs_isar(cs, ireg->iis >> 6))) {
1213                        rcv_mbox(cs, ireg, (u_char *)ireg->par);
1214                        if (bcs->mode == L1_MODE_V32) {
1215                                isar_pump_statev_modem(bcs, ireg->cmsb);
1216                        } else if (bcs->mode == L1_MODE_FAX) {
1217                                isar_pump_statev_fax(bcs, ireg->cmsb);
1218                        } else if (ireg->cmsb == PSEV_10MS_TIMER) {
1219                                if (cs->debug & L1_DEB_HSCX)
1220                                        debugl1(cs, "pump stev TIMER");
1221                        } else {
1222                                if (cs->debug & L1_DEB_WARN)
1223                                        debugl1(cs, "isar IIS_PSTEV pmode %d stat %x",
1224                                                bcs->mode, ireg->cmsb);
1225                        }
1226                } else {
1227                        debugl1(cs, "isar spurious IIS_PSTEV %x/%x/%x",
1228                                ireg->iis, ireg->cmsb, ireg->clsb);
1229                        cs->BC_Write_Reg(cs, 1, ISAR_IIA, 0);
1230                }
1231                break;
1232        case ISAR_IIS_PSTRSP:
1233                if ((bcs = sel_bcs_isar(cs, ireg->iis >> 6))) {
1234                        rcv_mbox(cs, ireg, (u_char *)ireg->par);
1235                        isar_pump_status_rsp(bcs, ireg);
1236                } else {
1237                        debugl1(cs, "isar spurious IIS_PSTRSP %x/%x/%x",
1238                                ireg->iis, ireg->cmsb, ireg->clsb);
1239                        cs->BC_Write_Reg(cs, 1, ISAR_IIA, 0);
1240                }
1241                break;
1242        case ISAR_IIS_DIAG:
1243        case ISAR_IIS_BSTRSP:
1244        case ISAR_IIS_IOM2RSP:
1245                rcv_mbox(cs, ireg, (u_char *)ireg->par);
1246                if ((cs->debug & (L1_DEB_HSCX | L1_DEB_HSCX_FIFO))
1247                    == L1_DEB_HSCX) {
1248                        u_char *tp = debbuf;
1249
1250                        tp += sprintf(debbuf, "msg iis(%x) msb(%x)",
1251                                      ireg->iis, ireg->cmsb);
1252                        QuickHex(tp, (u_char *)ireg->par, ireg->clsb);
1253                        debugl1(cs, "%s", debbuf);
1254                }
1255                break;
1256        case ISAR_IIS_INVMSG:
1257                rcv_mbox(cs, ireg, debbuf);
1258                if (cs->debug & L1_DEB_WARN)
1259                        debugl1(cs, "invalid msg his:%x",
1260                                ireg->cmsb);
1261                break;
1262        default:
1263                rcv_mbox(cs, ireg, debbuf);
1264                if (cs->debug & L1_DEB_WARN)
1265                        debugl1(cs, "unhandled msg iis(%x) ctrl(%x/%x)",
1266                                ireg->iis, ireg->cmsb, ireg->clsb);
1267                break;
1268        }
1269}
1270
1271static void
1272ftimer_handler(struct timer_list *t) {
1273        struct BCState *bcs = from_timer(bcs, t, hw.isar.ftimer);
1274        if (bcs->cs->debug)
1275                debugl1(bcs->cs, "ftimer flags %04lx",
1276                        bcs->Flag);
1277        test_and_clear_bit(BC_FLG_FTI_RUN, &bcs->Flag);
1278        if (test_and_clear_bit(BC_FLG_LL_CONN, &bcs->Flag)) {
1279                schedule_event(bcs, B_LL_CONNECT);
1280        }
1281        if (test_and_clear_bit(BC_FLG_FTI_FTS, &bcs->Flag)) {
1282                schedule_event(bcs, B_LL_OK);
1283        }
1284}
1285
1286static void
1287setup_pump(struct BCState *bcs) {
1288        struct IsdnCardState *cs = bcs->cs;
1289        u_char dps = SET_DPS(bcs->hw.isar.dpath);
1290        u_char ctrl, param[6];
1291
1292        switch (bcs->mode) {
1293        case L1_MODE_NULL:
1294        case L1_MODE_TRANS:
1295        case L1_MODE_HDLC:
1296                sendmsg(cs, dps | ISAR_HIS_PUMPCFG, PMOD_BYPASS, 0, NULL);
1297                break;
1298        case L1_MODE_V32:
1299                ctrl = PMOD_DATAMODEM;
1300                if (test_bit(BC_FLG_ORIG, &bcs->Flag)) {
1301                        ctrl |= PCTRL_ORIG;
1302                        param[5] = PV32P6_CTN;
1303                } else {
1304                        param[5] = PV32P6_ATN;
1305                }
1306                param[0] = para_TOA; /* 6 db */
1307                param[1] = PV32P2_V23R | PV32P2_V22A | PV32P2_V22B |
1308                        PV32P2_V22C | PV32P2_V21 | PV32P2_BEL;
1309                param[2] = PV32P3_AMOD | PV32P3_V32B | PV32P3_V23B;
1310                param[3] = PV32P4_UT144;
1311                param[4] = PV32P5_UT144;
1312                sendmsg(cs, dps | ISAR_HIS_PUMPCFG, ctrl, 6, param);
1313                break;
1314        case L1_MODE_FAX:
1315                ctrl = PMOD_FAX;
1316                if (test_bit(BC_FLG_ORIG, &bcs->Flag)) {
1317                        ctrl |= PCTRL_ORIG;
1318                        param[1] = PFAXP2_CTN;
1319                } else {
1320                        param[1] = PFAXP2_ATN;
1321                }
1322                param[0] = para_TOA; /* 6 db */
1323                sendmsg(cs, dps | ISAR_HIS_PUMPCFG, ctrl, 2, param);
1324                bcs->hw.isar.state = STFAX_NULL;
1325                bcs->hw.isar.newcmd = 0;
1326                bcs->hw.isar.newmod = 0;
1327                test_and_set_bit(BC_FLG_FTI_RUN, &bcs->Flag);
1328                break;
1329        }
1330        udelay(1000);
1331        sendmsg(cs, dps | ISAR_HIS_PSTREQ, 0, 0, NULL);
1332        udelay(1000);
1333}
1334
1335static void
1336setup_sart(struct BCState *bcs) {
1337        struct IsdnCardState *cs = bcs->cs;
1338        u_char dps = SET_DPS(bcs->hw.isar.dpath);
1339        u_char ctrl, param[2];
1340
1341        switch (bcs->mode) {
1342        case L1_MODE_NULL:
1343                sendmsg(cs, dps | ISAR_HIS_SARTCFG, SMODE_DISABLE, 0,
1344                        NULL);
1345                break;
1346        case L1_MODE_TRANS:
1347                sendmsg(cs, dps | ISAR_HIS_SARTCFG, SMODE_BINARY, 2,
1348                        "\0\0");
1349                break;
1350        case L1_MODE_HDLC:
1351                param[0] = 0;
1352                sendmsg(cs, dps | ISAR_HIS_SARTCFG, SMODE_HDLC, 1,
1353                        param);
1354                break;
1355        case L1_MODE_V32:
1356                ctrl = SMODE_V14 | SCTRL_HDMC_BOTH;
1357                param[0] = S_P1_CHS_8;
1358                param[1] = S_P2_BFT_DEF;
1359                sendmsg(cs, dps | ISAR_HIS_SARTCFG, ctrl, 2,
1360                        param);
1361                break;
1362        case L1_MODE_FAX:
1363                /* SART must not configured with FAX */
1364                break;
1365        }
1366        udelay(1000);
1367        sendmsg(cs, dps | ISAR_HIS_BSTREQ, 0, 0, NULL);
1368        udelay(1000);
1369}
1370
1371static void
1372setup_iom2(struct BCState *bcs) {
1373        struct IsdnCardState *cs = bcs->cs;
1374        u_char dps = SET_DPS(bcs->hw.isar.dpath);
1375        u_char cmsb = IOM_CTRL_ENA, msg[5] = {IOM_P1_TXD, 0, 0, 0, 0};
1376
1377        if (bcs->channel)
1378                msg[1] = msg[3] = 1;
1379        switch (bcs->mode) {
1380        case L1_MODE_NULL:
1381                cmsb = 0;
1382                /* dummy slot */
1383                msg[1] = msg[3] = bcs->hw.isar.dpath + 2;
1384                break;
1385        case L1_MODE_TRANS:
1386        case L1_MODE_HDLC:
1387                break;
1388        case L1_MODE_V32:
1389        case L1_MODE_FAX:
1390                cmsb |= IOM_CTRL_ALAW | IOM_CTRL_RCV;
1391                break;
1392        }
1393        sendmsg(cs, dps | ISAR_HIS_IOM2CFG, cmsb, 5, msg);
1394        udelay(1000);
1395        sendmsg(cs, dps | ISAR_HIS_IOM2REQ, 0, 0, NULL);
1396        udelay(1000);
1397}
1398
1399static int
1400modeisar(struct BCState *bcs, int mode, int bc)
1401{
1402        struct IsdnCardState *cs = bcs->cs;
1403
1404        /* Here we are selecting the best datapath for requested mode */
1405        if (bcs->mode == L1_MODE_NULL) { /* New Setup */
1406                bcs->channel = bc;
1407                switch (mode) {
1408                case L1_MODE_NULL: /* init */
1409                        if (!bcs->hw.isar.dpath)
1410                                /* no init for dpath 0 */
1411                                return (0);
1412                        break;
1413                case L1_MODE_TRANS:
1414                case L1_MODE_HDLC:
1415                        /* best is datapath 2 */
1416                        if (!test_and_set_bit(ISAR_DP2_USE,
1417                                              &bcs->hw.isar.reg->Flags))
1418                                bcs->hw.isar.dpath = 2;
1419                        else if (!test_and_set_bit(ISAR_DP1_USE,
1420                                                   &bcs->hw.isar.reg->Flags))
1421                                bcs->hw.isar.dpath = 1;
1422                        else {
1423                                printk(KERN_WARNING"isar modeisar both paths in use\n");
1424                                return (1);
1425                        }
1426                        break;
1427                case L1_MODE_V32:
1428                case L1_MODE_FAX:
1429                        /* only datapath 1 */
1430                        if (!test_and_set_bit(ISAR_DP1_USE,
1431                                              &bcs->hw.isar.reg->Flags))
1432                                bcs->hw.isar.dpath = 1;
1433                        else {
1434                                printk(KERN_WARNING"isar modeisar analog functions only with DP1\n");
1435                                debugl1(cs, "isar modeisar analog functions only with DP1");
1436                                return (1);
1437                        }
1438                        break;
1439                }
1440        }
1441        if (cs->debug & L1_DEB_HSCX)
1442                debugl1(cs, "isar dp%d mode %d->%d ichan %d",
1443                        bcs->hw.isar.dpath, bcs->mode, mode, bc);
1444        bcs->mode = mode;
1445        setup_pump(bcs);
1446        setup_iom2(bcs);
1447        setup_sart(bcs);
1448        if (bcs->mode == L1_MODE_NULL) {
1449                /* Clear resources */
1450                if (bcs->hw.isar.dpath == 1)
1451                        test_and_clear_bit(ISAR_DP1_USE, &bcs->hw.isar.reg->Flags);
1452                else if (bcs->hw.isar.dpath == 2)
1453                        test_and_clear_bit(ISAR_DP2_USE, &bcs->hw.isar.reg->Flags);
1454                bcs->hw.isar.dpath = 0;
1455        }
1456        return (0);
1457}
1458
1459static void
1460isar_pump_cmd(struct BCState *bcs, u_char cmd, u_char para)
1461{
1462        struct IsdnCardState *cs = bcs->cs;
1463        u_char dps = SET_DPS(bcs->hw.isar.dpath);
1464        u_char ctrl = 0, nom = 0, p1 = 0;
1465
1466        switch (cmd) {
1467        case ISDN_FAX_CLASS1_FTM:
1468                test_and_clear_bit(BC_FLG_FRH_WAIT, &bcs->Flag);
1469                if (bcs->hw.isar.state == STFAX_READY) {
1470                        p1 = para;
1471                        ctrl = PCTRL_CMD_FTM;
1472                        nom = 1;
1473                        bcs->hw.isar.state = STFAX_LINE;
1474                        bcs->hw.isar.cmd = ctrl;
1475                        bcs->hw.isar.mod = para;
1476                        bcs->hw.isar.newmod = 0;
1477                        bcs->hw.isar.newcmd = 0;
1478                        bcs->hw.isar.try_mod = 3;
1479                } else if ((bcs->hw.isar.state == STFAX_ACTIV) &&
1480                           (bcs->hw.isar.cmd == PCTRL_CMD_FTM) &&
1481                           (bcs->hw.isar.mod == para)) {
1482                        ll_deliver_faxstat(bcs, ISDN_FAX_CLASS1_CONNECT);
1483                } else {
1484                        bcs->hw.isar.newmod = para;
1485                        bcs->hw.isar.newcmd = PCTRL_CMD_FTM;
1486                        nom = 0;
1487                        ctrl = PCTRL_CMD_ESC;
1488                        bcs->hw.isar.state = STFAX_ESCAPE;
1489                }
1490                break;
1491        case ISDN_FAX_CLASS1_FTH:
1492                test_and_clear_bit(BC_FLG_FRH_WAIT, &bcs->Flag);
1493                if (bcs->hw.isar.state == STFAX_READY) {
1494                        p1 = para;
1495                        ctrl = PCTRL_CMD_FTH;
1496                        nom = 1;
1497                        bcs->hw.isar.state = STFAX_LINE;
1498                        bcs->hw.isar.cmd = ctrl;
1499                        bcs->hw.isar.mod = para;
1500                        bcs->hw.isar.newmod = 0;
1501                        bcs->hw.isar.newcmd = 0;
1502                        bcs->hw.isar.try_mod = 3;
1503                } else if ((bcs->hw.isar.state == STFAX_ACTIV) &&
1504                           (bcs->hw.isar.cmd == PCTRL_CMD_FTH) &&
1505                           (bcs->hw.isar.mod == para)) {
1506                        ll_deliver_faxstat(bcs, ISDN_FAX_CLASS1_CONNECT);
1507                } else {
1508                        bcs->hw.isar.newmod = para;
1509                        bcs->hw.isar.newcmd = PCTRL_CMD_FTH;
1510                        nom = 0;
1511                        ctrl = PCTRL_CMD_ESC;
1512                        bcs->hw.isar.state = STFAX_ESCAPE;
1513                }
1514                break;
1515        case ISDN_FAX_CLASS1_FRM:
1516                test_and_clear_bit(BC_FLG_FRH_WAIT, &bcs->Flag);
1517                if (bcs->hw.isar.state == STFAX_READY) {
1518                        p1 = para;
1519                        ctrl = PCTRL_CMD_FRM;
1520                        nom = 1;
1521                        bcs->hw.isar.state = STFAX_LINE;
1522                        bcs->hw.isar.cmd = ctrl;
1523                        bcs->hw.isar.mod = para;
1524                        bcs->hw.isar.newmod = 0;
1525                        bcs->hw.isar.newcmd = 0;
1526                        bcs->hw.isar.try_mod = 3;
1527                } else if ((bcs->hw.isar.state == STFAX_ACTIV) &&
1528                           (bcs->hw.isar.cmd == PCTRL_CMD_FRM) &&
1529                           (bcs->hw.isar.mod == para)) {
1530                        ll_deliver_faxstat(bcs, ISDN_FAX_CLASS1_CONNECT);
1531                } else {
1532                        bcs->hw.isar.newmod = para;
1533                        bcs->hw.isar.newcmd = PCTRL_CMD_FRM;
1534                        nom = 0;
1535                        ctrl = PCTRL_CMD_ESC;
1536                        bcs->hw.isar.state = STFAX_ESCAPE;
1537                }
1538                break;
1539        case ISDN_FAX_CLASS1_FRH:
1540                test_and_set_bit(BC_FLG_FRH_WAIT, &bcs->Flag);
1541                if (bcs->hw.isar.state == STFAX_READY) {
1542                        p1 = para;
1543                        ctrl = PCTRL_CMD_FRH;
1544                        nom = 1;
1545                        bcs->hw.isar.state = STFAX_LINE;
1546                        bcs->hw.isar.cmd = ctrl;
1547                        bcs->hw.isar.mod = para;
1548                        bcs->hw.isar.newmod = 0;
1549                        bcs->hw.isar.newcmd = 0;
1550                        bcs->hw.isar.try_mod = 3;
1551                } else if ((bcs->hw.isar.state == STFAX_ACTIV) &&
1552                           (bcs->hw.isar.cmd == PCTRL_CMD_FRH) &&
1553                           (bcs->hw.isar.mod == para)) {
1554                        ll_deliver_faxstat(bcs, ISDN_FAX_CLASS1_CONNECT);
1555                } else {
1556                        bcs->hw.isar.newmod = para;
1557                        bcs->hw.isar.newcmd = PCTRL_CMD_FRH;
1558                        nom = 0;
1559                        ctrl = PCTRL_CMD_ESC;
1560                        bcs->hw.isar.state = STFAX_ESCAPE;
1561                }
1562                break;
1563        case ISDN_FAXPUMP_HALT:
1564                bcs->hw.isar.state = STFAX_NULL;
1565                nom = 0;
1566                ctrl = PCTRL_CMD_HALT;
1567                break;
1568        }
1569        if (ctrl)
1570                sendmsg(cs, dps | ISAR_HIS_PUMPCTRL, ctrl, nom, &p1);
1571}
1572
1573static void
1574isar_setup(struct IsdnCardState *cs)
1575{
1576        u_char msg;
1577        int i;
1578
1579        /* Dpath 1, 2 */
1580        msg = 61;
1581        for (i = 0; i < 2; i++) {
1582                /* Buffer Config */
1583                sendmsg(cs, (i ? ISAR_HIS_DPS2 : ISAR_HIS_DPS1) |
1584                        ISAR_HIS_P12CFG, 4, 1, &msg);
1585                cs->bcs[i].hw.isar.mml = msg;
1586                cs->bcs[i].mode = 0;
1587                cs->bcs[i].hw.isar.dpath = i + 1;
1588                modeisar(&cs->bcs[i], 0, 0);
1589                INIT_WORK(&cs->bcs[i].tqueue, isar_bh);
1590        }
1591}
1592
1593static void
1594isar_l2l1(struct PStack *st, int pr, void *arg)
1595{
1596        struct BCState *bcs = st->l1.bcs;
1597        struct sk_buff *skb = arg;
1598        int ret;
1599        u_long flags;
1600
1601        switch (pr) {
1602        case (PH_DATA | REQUEST):
1603                spin_lock_irqsave(&bcs->cs->lock, flags);
1604                if (bcs->tx_skb) {
1605                        skb_queue_tail(&bcs->squeue, skb);
1606                } else {
1607                        bcs->tx_skb = skb;
1608                        test_and_set_bit(BC_FLG_BUSY, &bcs->Flag);
1609                        if (bcs->cs->debug & L1_DEB_HSCX)
1610                                debugl1(bcs->cs, "DRQ set BC_FLG_BUSY");
1611                        bcs->hw.isar.txcnt = 0;
1612                        bcs->cs->BC_Send_Data(bcs);
1613                }
1614                spin_unlock_irqrestore(&bcs->cs->lock, flags);
1615                break;
1616        case (PH_PULL | INDICATION):
1617                spin_lock_irqsave(&bcs->cs->lock, flags);
1618                if (bcs->tx_skb) {
1619                        printk(KERN_WARNING "isar_l2l1: this shouldn't happen\n");
1620                } else {
1621                        test_and_set_bit(BC_FLG_BUSY, &bcs->Flag);
1622                        if (bcs->cs->debug & L1_DEB_HSCX)
1623                                debugl1(bcs->cs, "PUI set BC_FLG_BUSY");
1624                        bcs->tx_skb = skb;
1625                        bcs->hw.isar.txcnt = 0;
1626                        bcs->cs->BC_Send_Data(bcs);
1627                }
1628                spin_unlock_irqrestore(&bcs->cs->lock, flags);
1629                break;
1630        case (PH_PULL | REQUEST):
1631                if (!bcs->tx_skb) {
1632                        test_and_clear_bit(FLG_L1_PULL_REQ, &st->l1.Flags);
1633                        st->l1.l1l2(st, PH_PULL | CONFIRM, NULL);
1634                } else
1635                        test_and_set_bit(FLG_L1_PULL_REQ, &st->l1.Flags);
1636                break;
1637        case (PH_ACTIVATE | REQUEST):
1638                spin_lock_irqsave(&bcs->cs->lock, flags);
1639                test_and_set_bit(BC_FLG_ACTIV, &bcs->Flag);
1640                bcs->hw.isar.conmsg[0] = 0;
1641                if (test_bit(FLG_ORIG, &st->l2.flag))
1642                        test_and_set_bit(BC_FLG_ORIG, &bcs->Flag);
1643                else
1644                        test_and_clear_bit(BC_FLG_ORIG, &bcs->Flag);
1645                switch (st->l1.mode) {
1646                case L1_MODE_TRANS:
1647                case L1_MODE_HDLC:
1648                        ret = modeisar(bcs, st->l1.mode, st->l1.bc);
1649                        spin_unlock_irqrestore(&bcs->cs->lock, flags);
1650                        if (ret)
1651                                l1_msg_b(st, PH_DEACTIVATE | REQUEST, arg);
1652                        else
1653                                l1_msg_b(st, PH_ACTIVATE | REQUEST, arg);
1654                        break;
1655                case L1_MODE_V32:
1656                case L1_MODE_FAX:
1657                        ret = modeisar(bcs, st->l1.mode, st->l1.bc);
1658                        spin_unlock_irqrestore(&bcs->cs->lock, flags);
1659                        if (ret)
1660                                l1_msg_b(st, PH_DEACTIVATE | REQUEST, arg);
1661                        break;
1662                default:
1663                        spin_unlock_irqrestore(&bcs->cs->lock, flags);
1664                        break;
1665                }
1666                break;
1667        case (PH_DEACTIVATE | REQUEST):
1668                l1_msg_b(st, pr, arg);
1669                break;
1670        case (PH_DEACTIVATE | CONFIRM):
1671                spin_lock_irqsave(&bcs->cs->lock, flags);
1672                switch (st->l1.mode) {
1673                case L1_MODE_TRANS:
1674                case L1_MODE_HDLC:
1675                case L1_MODE_V32:
1676                        break;
1677                case L1_MODE_FAX:
1678                        isar_pump_cmd(bcs, ISDN_FAXPUMP_HALT, 0);
1679                        break;
1680                }
1681                test_and_clear_bit(BC_FLG_ACTIV, &bcs->Flag);
1682                test_and_clear_bit(BC_FLG_BUSY, &bcs->Flag);
1683                if (bcs->cs->debug & L1_DEB_HSCX)
1684                        debugl1(bcs->cs, "PDAC clear BC_FLG_BUSY");
1685                modeisar(bcs, 0, st->l1.bc);
1686                spin_unlock_irqrestore(&bcs->cs->lock, flags);
1687                st->l1.l1l2(st, PH_DEACTIVATE | CONFIRM, NULL);
1688                break;
1689        }
1690}
1691
1692static void
1693close_isarstate(struct BCState *bcs)
1694{
1695        modeisar(bcs, 0, bcs->channel);
1696        if (test_and_clear_bit(BC_FLG_INIT, &bcs->Flag)) {
1697                kfree(bcs->hw.isar.rcvbuf);
1698                bcs->hw.isar.rcvbuf = NULL;
1699                skb_queue_purge(&bcs->rqueue);
1700                skb_queue_purge(&bcs->squeue);
1701                if (bcs->tx_skb) {
1702                        dev_kfree_skb_any(bcs->tx_skb);
1703                        bcs->tx_skb = NULL;
1704                        test_and_clear_bit(BC_FLG_BUSY, &bcs->Flag);
1705                        if (bcs->cs->debug & L1_DEB_HSCX)
1706                                debugl1(bcs->cs, "closeisar clear BC_FLG_BUSY");
1707                }
1708        }
1709        del_timer(&bcs->hw.isar.ftimer);
1710}
1711
1712static int
1713open_isarstate(struct IsdnCardState *cs, struct BCState *bcs)
1714{
1715        if (!test_and_set_bit(BC_FLG_INIT, &bcs->Flag)) {
1716                if (!(bcs->hw.isar.rcvbuf = kmalloc(HSCX_BUFMAX, GFP_ATOMIC))) {
1717                        printk(KERN_WARNING
1718                               "HiSax: No memory for isar.rcvbuf\n");
1719                        return (1);
1720                }
1721                skb_queue_head_init(&bcs->rqueue);
1722                skb_queue_head_init(&bcs->squeue);
1723        }
1724        bcs->tx_skb = NULL;
1725        test_and_clear_bit(BC_FLG_BUSY, &bcs->Flag);
1726        if (cs->debug & L1_DEB_HSCX)
1727                debugl1(cs, "openisar clear BC_FLG_BUSY");
1728        bcs->event = 0;
1729        bcs->hw.isar.rcvidx = 0;
1730        bcs->tx_cnt = 0;
1731        return (0);
1732}
1733
1734static int
1735setstack_isar(struct PStack *st, struct BCState *bcs)
1736{
1737        bcs->channel = st->l1.bc;
1738        if (open_isarstate(st->l1.hardware, bcs))
1739                return (-1);
1740        st->l1.bcs = bcs;
1741        st->l2.l2l1 = isar_l2l1;
1742        setstack_manager(st);
1743        bcs->st = st;
1744        setstack_l1_B(st);
1745        return (0);
1746}
1747
1748int
1749isar_auxcmd(struct IsdnCardState *cs, isdn_ctrl *ic) {
1750        u_long adr;
1751        int features, i;
1752        struct BCState *bcs;
1753
1754        if (cs->debug & L1_DEB_HSCX)
1755                debugl1(cs, "isar_auxcmd cmd/ch %x/%ld", ic->command, ic->arg);
1756        switch (ic->command) {
1757        case (ISDN_CMD_FAXCMD):
1758                bcs = cs->channel[ic->arg].bcs;
1759                if (cs->debug & L1_DEB_HSCX)
1760                        debugl1(cs, "isar_auxcmd cmd/subcmd %d/%d",
1761                                ic->parm.aux.cmd, ic->parm.aux.subcmd);
1762                switch (ic->parm.aux.cmd) {
1763                case ISDN_FAX_CLASS1_CTRL:
1764                        if (ic->parm.aux.subcmd == ETX)
1765                                test_and_set_bit(BC_FLG_DLEETX,
1766                                                 &bcs->Flag);
1767                        break;
1768                case ISDN_FAX_CLASS1_FTS:
1769                        if (ic->parm.aux.subcmd == AT_QUERY) {
1770                                ic->command = ISDN_STAT_FAXIND;
1771                                ic->parm.aux.cmd = ISDN_FAX_CLASS1_OK;
1772                                cs->iif.statcallb(ic);
1773                                return (0);
1774                        } else if (ic->parm.aux.subcmd == AT_EQ_QUERY) {
1775                                strcpy(ic->parm.aux.para, "0-255");
1776                                ic->command = ISDN_STAT_FAXIND;
1777                                ic->parm.aux.cmd = ISDN_FAX_CLASS1_QUERY;
1778                                cs->iif.statcallb(ic);
1779                                return (0);
1780                        } else if (ic->parm.aux.subcmd == AT_EQ_VALUE) {
1781                                if (cs->debug & L1_DEB_HSCX)
1782                                        debugl1(cs, "isar_auxcmd %s=%d",
1783                                                FC1_CMD[ic->parm.aux.cmd], ic->parm.aux.para[0]);
1784                                if (bcs->hw.isar.state == STFAX_READY) {
1785                                        if (!ic->parm.aux.para[0]) {
1786                                                ic->command = ISDN_STAT_FAXIND;
1787                                                ic->parm.aux.cmd = ISDN_FAX_CLASS1_OK;
1788                                                cs->iif.statcallb(ic);
1789                                                return (0);
1790                                        }
1791                                        if (!test_and_set_bit(BC_FLG_FTI_RUN, &bcs->Flag)) {
1792                                                /* n*10 ms */
1793                                                bcs->hw.isar.ftimer.expires =
1794                                                        jiffies + ((ic->parm.aux.para[0] * 10 * HZ) / 1000);
1795                                                test_and_set_bit(BC_FLG_FTI_FTS, &bcs->Flag);
1796                                                add_timer(&bcs->hw.isar.ftimer);
1797                                                return (0);
1798                                        } else {
1799                                                if (cs->debug)
1800                                                        debugl1(cs, "isar FTS=%d and FTI busy",
1801                                                                ic->parm.aux.para[0]);
1802                                        }
1803                                } else {
1804                                        if (cs->debug)
1805                                                debugl1(cs, "isar FTS=%d and isar.state not ready(%x)",
1806                                                        ic->parm.aux.para[0], bcs->hw.isar.state);
1807                                }
1808                                ic->command = ISDN_STAT_FAXIND;
1809                                ic->parm.aux.cmd = ISDN_FAX_CLASS1_ERROR;
1810                                cs->iif.statcallb(ic);
1811                        }
1812                        break;
1813                case ISDN_FAX_CLASS1_FRM:
1814                case ISDN_FAX_CLASS1_FRH:
1815                case ISDN_FAX_CLASS1_FTM:
1816                case ISDN_FAX_CLASS1_FTH:
1817                        if (ic->parm.aux.subcmd == AT_QUERY) {
1818                                sprintf(ic->parm.aux.para,
1819                                        "%d", bcs->hw.isar.mod);
1820                                ic->command = ISDN_STAT_FAXIND;
1821                                ic->parm.aux.cmd = ISDN_FAX_CLASS1_QUERY;
1822                                cs->iif.statcallb(ic);
1823                                return (0);
1824                        } else if (ic->parm.aux.subcmd == AT_EQ_QUERY) {
1825                                char *p = ic->parm.aux.para;
1826                                for (i = 0; i < FAXMODCNT; i++)
1827                                        if ((1 << i) & modmask)
1828                                                p += sprintf(p, "%d,", faxmodulation[i]);
1829                                p--;
1830                                *p = 0;
1831                                ic->command = ISDN_STAT_FAXIND;
1832                                ic->parm.aux.cmd = ISDN_FAX_CLASS1_QUERY;
1833                                cs->iif.statcallb(ic);
1834                                return (0);
1835                        } else if (ic->parm.aux.subcmd == AT_EQ_VALUE) {
1836                                if (cs->debug & L1_DEB_HSCX)
1837                                        debugl1(cs, "isar_auxcmd %s=%d",
1838                                                FC1_CMD[ic->parm.aux.cmd], ic->parm.aux.para[0]);
1839                                for (i = 0; i < FAXMODCNT; i++)
1840                                        if (faxmodulation[i] == ic->parm.aux.para[0])
1841                                                break;
1842                                if ((i < FAXMODCNT) && ((1 << i) & modmask) &&
1843                                    test_bit(BC_FLG_INIT, &bcs->Flag)) {
1844                                        isar_pump_cmd(bcs,
1845                                                      ic->parm.aux.cmd,
1846                                                      ic->parm.aux.para[0]);
1847                                        return (0);
1848                                }
1849                        }
1850                        /* wrong modulation or not activ */
1851                        /* fall through */
1852                default:
1853                        ic->command = ISDN_STAT_FAXIND;
1854                        ic->parm.aux.cmd = ISDN_FAX_CLASS1_ERROR;
1855                        cs->iif.statcallb(ic);
1856                }
1857                break;
1858        case (ISDN_CMD_IOCTL):
1859                switch (ic->arg) {
1860                case 9: /* load firmware */
1861                        features = ISDN_FEATURE_L2_MODEM |
1862                                ISDN_FEATURE_L2_FAX |
1863                                ISDN_FEATURE_L3_FCLASS1;
1864                        memcpy(&adr, ic->parm.num, sizeof(ulong));
1865                        if (isar_load_firmware(cs, (u_char __user *)adr))
1866                                return (1);
1867                        else
1868                                ll_run(cs, features);
1869                        break;
1870                case 20:
1871                        features = *(unsigned int *) ic->parm.num;
1872                        printk(KERN_DEBUG "HiSax: max modulation old(%04x) new(%04x)\n",
1873                               modmask, features);
1874                        modmask = features;
1875                        break;
1876                case 21:
1877                        features = *(unsigned int *) ic->parm.num;
1878                        printk(KERN_DEBUG "HiSax: FRM extra delay old(%d) new(%d) ms\n",
1879                               frm_extra_delay, features);
1880                        if (features >= 0)
1881                                frm_extra_delay = features;
1882                        break;
1883                case 22:
1884                        features = *(unsigned int *) ic->parm.num;
1885                        printk(KERN_DEBUG "HiSax: TOA old(%d) new(%d) db\n",
1886                               para_TOA, features);
1887                        if (features >= 0 && features < 32)
1888                                para_TOA = features;
1889                        break;
1890                default:
1891                        printk(KERN_DEBUG "HiSax: invalid ioctl %d\n",
1892                               (int) ic->arg);
1893                        return (-EINVAL);
1894                }
1895                break;
1896        default:
1897                return (-EINVAL);
1898        }
1899        return (0);
1900}
1901
1902void initisar(struct IsdnCardState *cs)
1903{
1904        cs->bcs[0].BC_SetStack = setstack_isar;
1905        cs->bcs[1].BC_SetStack = setstack_isar;
1906        cs->bcs[0].BC_Close = close_isarstate;
1907        cs->bcs[1].BC_Close = close_isarstate;
1908        timer_setup(&cs->bcs[0].hw.isar.ftimer, ftimer_handler, 0);
1909        timer_setup(&cs->bcs[1].hw.isar.ftimer, ftimer_handler, 0);
1910}
1911