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   1 /* $Id: c4.c,v 1.1.2.2 2004/01/16 21:09:27 keil Exp $
   2  *
   3  * Module for AVM C4 & C2 card.
   4  *
   5  * Copyright 1999 by Carsten Paeth <calle@calle.de>
   6  *
   7  * This software may be used and distributed according to the terms
   8  * of the GNU General Public License, incorporated herein by reference.
   9  *
  10  */
  11
  12 #include <linux/module.h>
  13 #include <linux/kernel.h>
  14 #include <linux/proc_fs.h>
  15 #include <linux/seq_file.h>
  16 #include <linux/skbuff.h>
  17 #include <linux/delay.h>
  18 #include <linux/mm.h>
  19 #include <linux/interrupt.h>
  20 #include <linux/ioport.h>
  21 #include <linux/pci.h>
  22 #include <linux/capi.h>
  23 #include <linux/kernelcapi.h>
  24 #include <linux/init.h>
  25 #include <linux/gfp.h>
  26 #include <asm/io.h>
  27 #include <asm/uaccess.h>
  28 #include <linux/netdevice.h>
  29 #include <linux/isdn/capicmd.h>
  30 #include <linux/isdn/capiutil.h>
  31 #include <linux/isdn/capilli.h>
  32 #include "avmcard.h"
  33
  34 #undef AVM_C4_DEBUG
  35 #undef AVM_C4_POLLDEBUG
  36
  37 /* ------------------------------------------------------------- */
  38
  39 static char *revision = "$Revision: 1.1.2.2 $";
  40
  41 /* ------------------------------------------------------------- */
  42
  43 static int suppress_pollack;
  44
  45 static struct pci_device_id c4_pci_tbl[] = {
  46         { PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_21285, PCI_VENDOR_ID_AVM, PCI_DEVICE_ID_AVM_C4, 0, 0, (unsigned long)4 },
  47         { PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_21285, PCI_VENDOR_ID_AVM, PCI_DEVICE_ID_AVM_C2, 0, 0, (unsigned long)2 },
  48         { }                     /* Terminating entry */
  49 };
  50
  51 MODULE_DEVICE_TABLE(pci, c4_pci_tbl);
  52 MODULE_DESCRIPTION("CAPI4Linux: Driver for AVM C2/C4 cards");
  53 MODULE_AUTHOR("Carsten Paeth");
  54 MODULE_LICENSE("GPL");
  55 module_param(suppress_pollack, bool, 0);
  56
  57 /* ------------------------------------------------------------- */
  58
  59 static void c4_dispatch_tx(avmcard *card);
  60
  61 /* ------------------------------------------------------------- */
  62
  63 #define DC21285_DRAM_A0MR       0x40000000
  64 #define DC21285_DRAM_A1MR       0x40004000
  65 #define DC21285_DRAM_A2MR       0x40008000
  66 #define DC21285_DRAM_A3MR       0x4000C000
  67
  68 #define CAS_OFFSET      0x88
  69
  70 #define DC21285_ARMCSR_BASE     0x42000000
  71
  72 #define PCI_OUT_INT_STATUS      0x30
  73 #define PCI_OUT_INT_MASK        0x34
  74 #define MAILBOX_0               0x50
  75 #define MAILBOX_1               0x54
  76 #define MAILBOX_2               0x58
  77 #define MAILBOX_3               0x5C
  78 #define DOORBELL                0x60
  79 #define DOORBELL_SETUP          0x64
  80
  81 #define CHAN_1_CONTROL          0x90
  82 #define CHAN_2_CONTROL          0xB0
  83 #define DRAM_TIMING             0x10C
  84 #define DRAM_ADDR_SIZE_0        0x110
  85 #define DRAM_ADDR_SIZE_1        0x114
  86 #define DRAM_ADDR_SIZE_2        0x118
  87 #define DRAM_ADDR_SIZE_3        0x11C
  88 #define SA_CONTROL              0x13C
  89 #define XBUS_CYCLE              0x148
  90 #define XBUS_STROBE             0x14C
  91 #define DBELL_PCI_MASK          0x150
  92 #define DBELL_SA_MASK           0x154
  93
  94 #define SDRAM_SIZE              0x1000000
  95
  96 /* ------------------------------------------------------------- */
  97
  98 #define MBOX_PEEK_POKE          MAILBOX_0
  99
 100 #define DBELL_ADDR              0x01
 101 #define DBELL_DATA              0x02
 102 #define DBELL_RNWR              0x40
 103 #define DBELL_INIT              0x80
 104
 105 /* ------------------------------------------------------------- */
 106
 107 #define MBOX_UP_ADDR            MAILBOX_0
 108 #define MBOX_UP_LEN             MAILBOX_1
 109 #define MBOX_DOWN_ADDR          MAILBOX_2
 110 #define MBOX_DOWN_LEN           MAILBOX_3
 111
 112 #define DBELL_UP_HOST           0x00000100
 113 #define DBELL_UP_ARM            0x00000200
 114 #define DBELL_DOWN_HOST         0x00000400
 115 #define DBELL_DOWN_ARM          0x00000800
 116 #define DBELL_RESET_HOST        0x40000000
 117 #define DBELL_RESET_ARM         0x80000000
 118
 119 /* ------------------------------------------------------------- */
 120
 121 #define DRAM_TIMING_DEF         0x001A01A5
 122 #define DRAM_AD_SZ_DEF0         0x00000045
 123 #define DRAM_AD_SZ_NULL         0x00000000
 124
 125 #define SA_CTL_ALLRIGHT         0x64AA0271
 126
 127 #define INIT_XBUS_CYCLE         0x100016DB
 128 #define INIT_XBUS_STROBE        0xF1F1F1F1
 129
 130 /* ------------------------------------------------------------- */
 131
 132 #define RESET_TIMEOUT           (15*HZ) /* 15 sec */
 133 #define PEEK_POKE_TIMEOUT       (HZ/10) /* 0.1 sec */
 134
 135 /* ------------------------------------------------------------- */
 136
 137 #define c4outmeml(addr, value)  writel(value, addr)
 138 #define c4inmeml(addr)  readl(addr)
 139 #define c4outmemw(addr, value)  writew(value, addr)
 140 #define c4inmemw(addr)  readw(addr)
 141 #define c4outmemb(addr, value)  writeb(value, addr)
 142 #define c4inmemb(addr)  readb(addr)
 143
 144 /* ------------------------------------------------------------- */
 145
 146 static inline int wait_for_doorbell(avmcard *card, unsigned long t)
 147 {
 148         unsigned long stop;
 149
 150         stop = jiffies + t;
 151         while (c4inmeml(card->mbase+DOORBELL) != 0xffffffff) {
 152                 if (!time_before(jiffies, stop))
 153                         return -1;
 154                 mb();
 155         }
 156         return 0;
 157 }
 158
 159 static int c4_poke(avmcard *card,  unsigned long off, unsigned long value)
 160 {
 161
 162         if (wait_for_doorbell(card, HZ/10) < 0)
 163                 return -1;
 164
 165         c4outmeml(card->mbase+MBOX_PEEK_POKE, off);
 166         c4outmeml(card->mbase+DOORBELL, DBELL_ADDR);
 167
 168         if (wait_for_doorbell(card, HZ/10) < 0)
 169                 return -1;
 170
 171         c4outmeml(card->mbase+MBOX_PEEK_POKE, value);
 172         c4outmeml(card->mbase+DOORBELL, DBELL_DATA | DBELL_ADDR);
 173
 174         return 0;
 175 }
 176
 177 static int c4_peek(avmcard *card,  unsigned long off, unsigned long *valuep)
 178 {
 179         if (wait_for_doorbell(card, HZ/10) < 0)
 180                 return -1;
 181
 182         c4outmeml(card->mbase+MBOX_PEEK_POKE, off);
 183         c4outmeml(card->mbase+DOORBELL, DBELL_RNWR | DBELL_ADDR);
 184
 185         if (wait_for_doorbell(card, HZ/10) < 0)
 186                 return -1;
 187
 188         *valuep = c4inmeml(card->mbase+MBOX_PEEK_POKE);
 189
 190         return 0;
 191 }
 192
 193 /* ------------------------------------------------------------- */
 194
 195 static int c4_load_t4file(avmcard *card, capiloaddatapart * t4file)
 196 {
 197         u32 val;
 198         unsigned char *dp;
 199         u_int left;
 200         u32 loadoff = 0;
 201
 202         dp = t4file->data;
 203         left = t4file->len;
 204         while (left >= sizeof(u32)) {
 205                 if (t4file->user) {
 206                         if (copy_from_user(&val, dp, sizeof(val)))
 207                                 return -EFAULT;
 208                 } else {
 209                         memcpy(&val, dp, sizeof(val));
 210                 }
 211                 if (c4_poke(card, loadoff, val)) {
 212                         printk(KERN_ERR "%s: corrupted firmware file ?\n",
 213                                         card->name);
 214                         return -EIO;
 215                 }
 216                 left -= sizeof(u32);
 217                 dp += sizeof(u32);
 218                 loadoff += sizeof(u32);
 219         }
 220         if (left) {
 221                 val = 0;
 222                 if (t4file->user) {
 223                         if (copy_from_user(&val, dp, left))
 224                                 return -EFAULT;
 225                 } else {
 226                         memcpy(&val, dp, left);
 227                 }
 228                 if (c4_poke(card, loadoff, val)) {
 229                         printk(KERN_ERR "%s: corrupted firmware file ?\n",
 230                                         card->name);
 231                         return -EIO;
 232                 }
 233         }
 234         return 0;
 235 }
 236
 237 /* ------------------------------------------------------------- */
 238
 239 static inline void _put_byte(void **pp, u8 val)
 240 {
 241         u8 *s = *pp;
 242         *s++ = val;
 243         *pp = s;
 244 }
 245
 246 static inline void _put_word(void **pp, u32 val)
 247 {
 248         u8 *s = *pp;
 249         *s++ = val & 0xff;
 250         *s++ = (val >> 8) & 0xff;
 251         *s++ = (val >> 16) & 0xff;
 252         *s++ = (val >> 24) & 0xff;
 253         *pp = s;
 254 }
 255
 256 static inline void _put_slice(void **pp, unsigned char *dp, unsigned int len)
 257 {
 258         unsigned i = len;
 259         _put_word(pp, i);
 260         while (i-- > 0)
 261                 _put_byte(pp, *dp++);
 262 }
 263
 264 static inline u8 _get_byte(void **pp)
 265 {
 266         u8 *s = *pp;
 267         u8 val;
 268         val = *s++;
 269         *pp = s;
 270         return val;
 271 }
 272
 273 static inline u32 _get_word(void **pp)
 274 {
 275         u8 *s = *pp;
 276         u32 val;
 277         val = *s++;
 278         val |= (*s++ << 8);
 279         val |= (*s++ << 16);
 280         val |= (*s++ << 24);
 281         *pp = s;
 282         return val;
 283 }
 284
 285 static inline u32 _get_slice(void **pp, unsigned char *dp)
 286 {
 287         unsigned int len, i;
 288
 289         len = i = _get_word(pp);
 290         while (i-- > 0) *dp++ = _get_byte(pp);
 291         return len;
 292 }
 293
 294 /* ------------------------------------------------------------- */
 295
 296 static void c4_reset(avmcard *card)
 297 {
 298         unsigned long stop;
 299
 300         c4outmeml(card->mbase+DOORBELL, DBELL_RESET_ARM);
 301
 302         stop = jiffies + HZ*10;
 303         while (c4inmeml(card->mbase+DOORBELL) != 0xffffffff) {
 304                 if (!time_before(jiffies, stop))
 305                         return;
 306                 c4outmeml(card->mbase+DOORBELL, DBELL_ADDR);
 307                 mb();
 308         }
 309
 310         c4_poke(card, DC21285_ARMCSR_BASE + CHAN_1_CONTROL, 0);
 311         c4_poke(card, DC21285_ARMCSR_BASE + CHAN_2_CONTROL, 0);
 312 }
 313
 314 /* ------------------------------------------------------------- */
 315
 316 static int c4_detect(avmcard *card)
 317 {
 318         unsigned long stop, dummy;
 319
 320         c4outmeml(card->mbase+PCI_OUT_INT_MASK, 0x0c);
 321         if (c4inmeml(card->mbase+PCI_OUT_INT_MASK) != 0x0c)
 322                 return  1;
 323
 324         c4outmeml(card->mbase+DOORBELL, DBELL_RESET_ARM);
 325
 326         stop = jiffies + HZ*10;
 327         while (c4inmeml(card->mbase+DOORBELL) != 0xffffffff) {
 328                 if (!time_before(jiffies, stop))
 329                         return 2;
 330                 c4outmeml(card->mbase+DOORBELL, DBELL_ADDR);
 331                 mb();
 332         }
 333
 334         c4_poke(card, DC21285_ARMCSR_BASE + CHAN_1_CONTROL, 0);
 335         c4_poke(card, DC21285_ARMCSR_BASE + CHAN_2_CONTROL, 0);
 336
 337         c4outmeml(card->mbase+MAILBOX_0, 0x55aa55aa);
 338         if (c4inmeml(card->mbase+MAILBOX_0) != 0x55aa55aa) return 3;
 339
 340         c4outmeml(card->mbase+MAILBOX_0, 0xaa55aa55);
 341         if (c4inmeml(card->mbase+MAILBOX_0) != 0xaa55aa55) return 4;
 342
 343         if (c4_poke(card, DC21285_ARMCSR_BASE+DBELL_SA_MASK, 0)) return 5;
 344         if (c4_poke(card, DC21285_ARMCSR_BASE+DBELL_PCI_MASK, 0)) return 6;
 345         if (c4_poke(card, DC21285_ARMCSR_BASE+SA_CONTROL, SA_CTL_ALLRIGHT))
 346                 return 7;
 347         if (c4_poke(card, DC21285_ARMCSR_BASE+XBUS_CYCLE, INIT_XBUS_CYCLE))
 348                 return 8;
 349         if (c4_poke(card, DC21285_ARMCSR_BASE+XBUS_STROBE, INIT_XBUS_STROBE))
 350                 return 8;
 351         if (c4_poke(card, DC21285_ARMCSR_BASE+DRAM_TIMING, 0)) return 9;
 352
 353         mdelay(1);
 354
 355         if (c4_peek(card, DC21285_DRAM_A0MR, &dummy)) return 10;
 356         if (c4_peek(card, DC21285_DRAM_A1MR, &dummy)) return 11;
 357         if (c4_peek(card, DC21285_DRAM_A2MR, &dummy)) return 12;
 358         if (c4_peek(card, DC21285_DRAM_A3MR, &dummy)) return 13;
 359
 360         if (c4_poke(card, DC21285_DRAM_A0MR+CAS_OFFSET, 0)) return 14;
 361         if (c4_poke(card, DC21285_DRAM_A1MR+CAS_OFFSET, 0)) return 15;
 362         if (c4_poke(card, DC21285_DRAM_A2MR+CAS_OFFSET, 0)) return 16;
 363         if (c4_poke(card, DC21285_DRAM_A3MR+CAS_OFFSET, 0)) return 17;
 364
 365         mdelay(1);
 366
 367         if (c4_poke(card, DC21285_ARMCSR_BASE+DRAM_TIMING, DRAM_TIMING_DEF))
 368                 return 18;
 369
 370         if (c4_poke(card, DC21285_ARMCSR_BASE+DRAM_ADDR_SIZE_0,DRAM_AD_SZ_DEF0))
 371                 return 19;
 372         if (c4_poke(card, DC21285_ARMCSR_BASE+DRAM_ADDR_SIZE_1,DRAM_AD_SZ_NULL))
 373                 return 20;
 374         if (c4_poke(card, DC21285_ARMCSR_BASE+DRAM_ADDR_SIZE_2,DRAM_AD_SZ_NULL))
 375                 return 21;
 376         if (c4_poke(card, DC21285_ARMCSR_BASE+DRAM_ADDR_SIZE_3,DRAM_AD_SZ_NULL))
 377                 return 22;
 378
 379         /* Transputer test */
 380
 381         if (   c4_poke(card, 0x000000, 0x11111111)
 382             || c4_poke(card, 0x400000, 0x22222222)
 383             || c4_poke(card, 0x800000, 0x33333333)
 384             || c4_poke(card, 0xC00000, 0x44444444))
 385                 return 23;
 386
 387         if (   c4_peek(card, 0x000000, &dummy) || dummy != 0x11111111
 388             || c4_peek(card, 0x400000, &dummy) || dummy != 0x22222222
 389             || c4_peek(card, 0x800000, &dummy) || dummy != 0x33333333
 390             || c4_peek(card, 0xC00000, &dummy) || dummy != 0x44444444)
 391                 return 24;
 392
 393         if (   c4_poke(card, 0x000000, 0x55555555)
 394             || c4_poke(card, 0x400000, 0x66666666)
 395             || c4_poke(card, 0x800000, 0x77777777)
 396             || c4_poke(card, 0xC00000, 0x88888888))
 397                 return 25;
 398
 399         if (   c4_peek(card, 0x000000, &dummy) || dummy != 0x55555555
 400             || c4_peek(card, 0x400000, &dummy) || dummy != 0x66666666
 401             || c4_peek(card, 0x800000, &dummy) || dummy != 0x77777777
 402             || c4_peek(card, 0xC00000, &dummy) || dummy != 0x88888888)
 403                 return 26;
 404
 405         return 0;
 406 }
 407
 408 /* ------------------------------------------------------------- */
 409
 410 static void c4_dispatch_tx(avmcard *card)
 411 {
 412         avmcard_dmainfo *dma = card->dma;
 413         struct sk_buff *skb;
 414         u8 cmd, subcmd;
 415         u16 len;
 416         u32 txlen;
 417         void *p;
 418
 419
 420         if (card->csr & DBELL_DOWN_ARM) { /* tx busy */
 421                 return;
 422         }
 423
 424         skb = skb_dequeue(&dma->send_queue);
 425         if (!skb) {
 426 #ifdef AVM_C4_DEBUG
 427                 printk(KERN_DEBUG "%s: tx underrun\n", card->name);
 428 #endif
 429                 return;
 430         }
 431
 432         len = CAPIMSG_LEN(skb->data);
 433
 434         if (len) {
 435                 cmd = CAPIMSG_COMMAND(skb->data);
 436                 subcmd = CAPIMSG_SUBCOMMAND(skb->data);
 437
 438                 p = dma->sendbuf.dmabuf;
 439
 440                 if (CAPICMD(cmd, subcmd) == CAPI_DATA_B3_REQ) {
 441                         u16 dlen = CAPIMSG_DATALEN(skb->data);
 442                         _put_byte(&p, SEND_DATA_B3_REQ);
 443                         _put_slice(&p, skb->data, len);
 444                         _put_slice(&p, skb->data + len, dlen);
 445                 } else {
 446                         _put_byte(&p, SEND_MESSAGE);
 447                         _put_slice(&p, skb->data, len);
 448                 }
 449                 txlen = (u8 *)p - (u8 *)dma->sendbuf.dmabuf;
 450 #ifdef AVM_C4_DEBUG
 451                 printk(KERN_DEBUG "%s: tx put msg len=%d\n", card->name, txlen);
 452 #endif
 453         } else {
 454                 txlen = skb->len-2;
 455 #ifdef AVM_C4_POLLDEBUG
 456                 if (skb->data[2] == SEND_POLLACK)
 457                         printk(KERN_INFO "%s: ack to c4\n", card->name);
 458 #endif
 459 #ifdef AVM_C4_DEBUG
 460                 printk(KERN_DEBUG "%s: tx put 0x%x len=%d\n",
 461                                 card->name, skb->data[2], txlen);
 462 #endif
 463                 skb_copy_from_linear_data_offset(skb, 2, dma->sendbuf.dmabuf,
 464                                                  skb->len - 2);
 465         }
 466         txlen = (txlen + 3) & ~3;
 467
 468         c4outmeml(card->mbase+MBOX_DOWN_ADDR, dma->sendbuf.dmaaddr);
 469         c4outmeml(card->mbase+MBOX_DOWN_LEN, txlen);
 470
 471         card->csr |= DBELL_DOWN_ARM;
 472
 473         c4outmeml(card->mbase+DOORBELL, DBELL_DOWN_ARM);
 474
 475         dev_kfree_skb_any(skb);
 476 }
 477
 478 /* ------------------------------------------------------------- */
 479
 480 static void queue_pollack(avmcard *card)
 481 {
 482         struct sk_buff *skb;
 483         void *p;
 484
 485         skb = alloc_skb(3, GFP_ATOMIC);
 486         if (!skb) {
 487                 printk(KERN_CRIT "%s: no memory, lost poll ack\n",
 488                                         card->name);
 489                 return;
 490         }
 491         p = skb->data;
 492         _put_byte(&p, 0);
 493         _put_byte(&p, 0);
 494         _put_byte(&p, SEND_POLLACK);
 495         skb_put(skb, (u8 *)p - (u8 *)skb->data);
 496
 497         skb_queue_tail(&card->dma->send_queue, skb);
 498         c4_dispatch_tx(card);
 499 }
 500
 501 /* ------------------------------------------------------------- */
 502
 503 static void c4_handle_rx(avmcard *card)
 504 {
 505         avmcard_dmainfo *dma = card->dma;
 506         struct capi_ctr *ctrl;
 507         avmctrl_info *cinfo;
 508         struct sk_buff *skb;
 509         void *p = dma->recvbuf.dmabuf;
 510         u32 ApplId, MsgLen, DataB3Len, NCCI, WindowSize;
 511         u8 b1cmd =  _get_byte(&p);
 512         u32 cidx;
 513
 514
 515 #ifdef AVM_C4_DEBUG
 516         printk(KERN_DEBUG "%s: rx 0x%x len=%lu\n", card->name,
 517                                 b1cmd, (unsigned long)dma->recvlen);
 518 #endif
 519
 520         switch (b1cmd) {
 521         case RECEIVE_DATA_B3_IND:
 522
 523                 ApplId = (unsigned) _get_word(&p);
 524                 MsgLen = _get_slice(&p, card->msgbuf);
 525                 DataB3Len = _get_slice(&p, card->databuf);
 526                 cidx = CAPIMSG_CONTROLLER(card->msgbuf)-card->cardnr;
 527                 if (cidx >= card->nlogcontr) cidx = 0;
 528                 ctrl = &card->ctrlinfo[cidx].capi_ctrl;
 529
 530                 if (MsgLen < 30) { /* not CAPI 64Bit */
 531                         memset(card->msgbuf+MsgLen, 0, 30-MsgLen);
 532                         MsgLen = 30;
 533                         CAPIMSG_SETLEN(card->msgbuf, 30);
 534                 }
 535                 if (!(skb = alloc_skb(DataB3Len+MsgLen, GFP_ATOMIC))) {
 536                         printk(KERN_ERR "%s: incoming packet dropped\n",
 537                                         card->name);
 538                 } else {
 539                         memcpy(skb_put(skb, MsgLen), card->msgbuf, MsgLen);
 540                         memcpy(skb_put(skb, DataB3Len), card->databuf, DataB3Len);
 541                         capi_ctr_handle_message(ctrl, ApplId, skb);
 542                 }
 543                 break;
 544
 545         case RECEIVE_MESSAGE:
 546
 547                 ApplId = (unsigned) _get_word(&p);
 548                 MsgLen = _get_slice(&p, card->msgbuf);
 549                 cidx = CAPIMSG_CONTROLLER(card->msgbuf)-card->cardnr;
 550                 if (cidx >= card->nlogcontr) cidx = 0;
 551                 cinfo = &card->ctrlinfo[cidx];
 552                 ctrl = &card->ctrlinfo[cidx].capi_ctrl;
 553
 554                 if (!(skb = alloc_skb(MsgLen, GFP_ATOMIC))) {
 555                         printk(KERN_ERR "%s: incoming packet dropped\n",
 556                                         card->name);
 557                 } else {
 558                         memcpy(skb_put(skb, MsgLen), card->msgbuf, MsgLen);
 559                         if (CAPIMSG_CMD(skb->data) == CAPI_DATA_B3_CONF)
 560                                 capilib_data_b3_conf(&cinfo->ncci_head, ApplId,
 561                                                      CAPIMSG_NCCI(skb->data),
 562                                                      CAPIMSG_MSGID(skb->data));
 563
 564                         capi_ctr_handle_message(ctrl, ApplId, skb);
 565                 }
 566                 break;
 567
 568         case RECEIVE_NEW_NCCI:
 569
 570                 ApplId = _get_word(&p);
 571                 NCCI = _get_word(&p);
 572                 WindowSize = _get_word(&p);
 573                 cidx = (NCCI&0x7f) - card->cardnr;
 574                 if (cidx >= card->nlogcontr) cidx = 0;
 575
 576                 capilib_new_ncci(&card->ctrlinfo[cidx].ncci_head, ApplId, NCCI, WindowSize);
 577
 578                 break;
 579
 580         case RECEIVE_FREE_NCCI:
 581
 582                 ApplId = _get_word(&p);
 583                 NCCI = _get_word(&p);
 584
 585                 if (NCCI != 0xffffffff) {
 586                         cidx = (NCCI&0x7f) - card->cardnr;
 587                         if (cidx >= card->nlogcontr) cidx = 0;
 588                         capilib_free_ncci(&card->ctrlinfo[cidx].ncci_head, ApplId, NCCI);
 589                 }
 590                 break;
 591
 592         case RECEIVE_START:
 593 #ifdef AVM_C4_POLLDEBUG
 594                 printk(KERN_INFO "%s: poll from c4\n", card->name);
 595 #endif
 596                 if (!suppress_pollack)
 597                         queue_pollack(card);
 598                 for (cidx=0; cidx < card->nr_controllers; cidx++) {
 599                         ctrl = &card->ctrlinfo[cidx].capi_ctrl;
 600                         capi_ctr_resume_output(ctrl);
 601                 }
 602                 break;
 603
 604         case RECEIVE_STOP:
 605                 for (cidx=0; cidx < card->nr_controllers; cidx++) {
 606                         ctrl = &card->ctrlinfo[cidx].capi_ctrl;
 607                         capi_ctr_suspend_output(ctrl);
 608                 }
 609                 break;
 610
 611         case RECEIVE_INIT:
 612
 613                 cidx = card->nlogcontr;
 614                 if (cidx >= card->nr_controllers) {
 615                         printk(KERN_ERR "%s: card with %d controllers ??\n",
 616                                         card->name, cidx+1);
 617                         break;
 618                 }
 619                 card->nlogcontr++;
 620                 cinfo = &card->ctrlinfo[cidx];
 621                 ctrl = &cinfo->capi_ctrl;
 622                 cinfo->versionlen = _get_slice(&p, cinfo->versionbuf);
 623                 b1_parse_version(cinfo);
 624                 printk(KERN_INFO "%s: %s-card (%s) now active\n",
 625                        card->name,
 626                        cinfo->version[VER_CARDTYPE],
 627                        cinfo->version[VER_DRIVER]);
 628                 capi_ctr_ready(&cinfo->capi_ctrl);
 629                 break;
 630
 631         case RECEIVE_TASK_READY:
 632                 ApplId = (unsigned) _get_word(&p);
 633                 MsgLen = _get_slice(&p, card->msgbuf);
 634                 card->msgbuf[MsgLen] = 0;
 635                 while (    MsgLen > 0
 636                        && (   card->msgbuf[MsgLen-1] == '\n'
 637                            || card->msgbuf[MsgLen-1] == '\r')) {
 638                         card->msgbuf[MsgLen-1] = 0;
 639                         MsgLen--;
 640                 }
 641                 printk(KERN_INFO "%s: task %d \"%s\" ready.\n",
 642                                 card->name, ApplId, card->msgbuf);
 643                 break;
 644
 645         case RECEIVE_DEBUGMSG:
 646                 MsgLen = _get_slice(&p, card->msgbuf);
 647                 card->msgbuf[MsgLen] = 0;
 648                 while (    MsgLen > 0
 649                        && (   card->msgbuf[MsgLen-1] == '\n'
 650                            || card->msgbuf[MsgLen-1] == '\r')) {
 651                         card->msgbuf[MsgLen-1] = 0;
 652                         MsgLen--;
 653                 }
 654                 printk(KERN_INFO "%s: DEBUG: %s\n", card->name, card->msgbuf);
 655                 break;
 656
 657         default:
 658                 printk(KERN_ERR "%s: c4_interrupt: 0x%x ???\n",
 659                                 card->name, b1cmd);
 660                 return;
 661         }
 662 }
 663
 664 /* ------------------------------------------------------------- */
 665
 666 static irqreturn_t c4_handle_interrupt(avmcard *card)
 667 {
 668         unsigned long flags;
 669         u32 status;
 670
 671         spin_lock_irqsave(&card->lock, flags);
 672         status = c4inmeml(card->mbase+DOORBELL);
 673
 674         if (status & DBELL_RESET_HOST) {
 675                 u_int i;
 676                 c4outmeml(card->mbase+PCI_OUT_INT_MASK, 0x0c);
 677                 spin_unlock_irqrestore(&card->lock, flags);
 678                 if (card->nlogcontr == 0)
 679                         return IRQ_HANDLED;
 680                 printk(KERN_ERR "%s: unexpected reset\n", card->name);
 681                 for (i=0; i < card->nr_controllers; i++) {
 682                         avmctrl_info *cinfo = &card->ctrlinfo[i];
 683                         memset(cinfo->version, 0, sizeof(cinfo->version));
 684                         spin_lock_irqsave(&card->lock, flags);
 685                         capilib_release(&cinfo->ncci_head);
 686                         spin_unlock_irqrestore(&card->lock, flags);
 687                         capi_ctr_down(&cinfo->capi_ctrl);
 688                 }
 689                 card->nlogcontr = 0;
 690                 return IRQ_HANDLED;
 691         }
 692
 693         status &= (DBELL_UP_HOST | DBELL_DOWN_HOST);
 694         if (!status) {
 695                 spin_unlock_irqrestore(&card->lock, flags);
 696                 return IRQ_HANDLED;
 697         }
 698         c4outmeml(card->mbase+DOORBELL, status);
 699
 700         if ((status & DBELL_UP_HOST) != 0) {
 701                 card->dma->recvlen = c4inmeml(card->mbase+MBOX_UP_LEN);
 702                 c4outmeml(card->mbase+MBOX_UP_LEN, 0);
 703                 c4_handle_rx(card);
 704                 card->dma->recvlen = 0;
 705                 c4outmeml(card->mbase+MBOX_UP_LEN, card->dma->recvbuf.size);
 706                 c4outmeml(card->mbase+DOORBELL, DBELL_UP_ARM);
 707         }
 708
 709         if ((status & DBELL_DOWN_HOST) != 0) {
 710                 card->csr &= ~DBELL_DOWN_ARM;
 711                 c4_dispatch_tx(card);
 712         } else if (card->csr & DBELL_DOWN_HOST) {
 713                 if (c4inmeml(card->mbase+MBOX_DOWN_LEN) == 0) {
 714                         card->csr &= ~DBELL_DOWN_ARM;
 715                         c4_dispatch_tx(card);
 716                 }
 717         }
 718         spin_unlock_irqrestore(&card->lock, flags);
 719         return IRQ_HANDLED;
 720 }
 721
 722 static irqreturn_t c4_interrupt(int interrupt, void *devptr)
 723 {
 724         avmcard *card = devptr;
 725
 726         return c4_handle_interrupt(card);
 727 }
 728
 729 /* ------------------------------------------------------------- */
 730
 731 static void c4_send_init(avmcard *card)
 732 {
 733         struct sk_buff *skb;
 734         void *p;
 735         unsigned long flags;
 736
 737         skb = alloc_skb(15, GFP_ATOMIC);
 738         if (!skb) {
 739                 printk(KERN_CRIT "%s: no memory, lost register appl.\n",
 740                                         card->name);
 741                 return;
 742         }
 743         p = skb->data;
 744         _put_byte(&p, 0);
 745         _put_byte(&p, 0);
 746         _put_byte(&p, SEND_INIT);
 747         _put_word(&p, CAPI_MAXAPPL);
 748         _put_word(&p, AVM_NCCI_PER_CHANNEL*30);
 749         _put_word(&p, card->cardnr - 1);
 750         skb_put(skb, (u8 *)p - (u8 *)skb->data);
 751
 752         skb_queue_tail(&card->dma->send_queue, skb);
 753         spin_lock_irqsave(&card->lock, flags);
 754         c4_dispatch_tx(card);
 755         spin_unlock_irqrestore(&card->lock, flags);
 756 }
 757
 758 static int queue_sendconfigword(avmcard *card, u32 val)
 759 {
 760         struct sk_buff *skb;
 761         unsigned long flags;
 762         void *p;
 763
 764         skb = alloc_skb(3+4, GFP_ATOMIC);
 765         if (!skb) {
 766                 printk(KERN_CRIT "%s: no memory, send config\n",
 767                                         card->name);
 768                 return -ENOMEM;
 769         }
 770         p = skb->data;
 771         _put_byte(&p, 0);
 772         _put_byte(&p, 0);
 773         _put_byte(&p, SEND_CONFIG);
 774         _put_word(&p, val);
 775         skb_put(skb, (u8 *)p - (u8 *)skb->data);
 776
 777         skb_queue_tail(&card->dma->send_queue, skb);
 778         spin_lock_irqsave(&card->lock, flags);
 779         c4_dispatch_tx(card);
 780         spin_unlock_irqrestore(&card->lock, flags);
 781         return 0;
 782 }
 783
 784 static int queue_sendconfig(avmcard *card, char cval[4])
 785 {
 786         struct sk_buff *skb;
 787         unsigned long flags;
 788         void *p;
 789
 790         skb = alloc_skb(3+4, GFP_ATOMIC);
 791         if (!skb) {
 792                 printk(KERN_CRIT "%s: no memory, send config\n",
 793                                         card->name);
 794                 return -ENOMEM;
 795         }
 796         p = skb->data;
 797         _put_byte(&p, 0);
 798         _put_byte(&p, 0);
 799         _put_byte(&p, SEND_CONFIG);
 800         _put_byte(&p, cval[0]);
 801         _put_byte(&p, cval[1]);
 802         _put_byte(&p, cval[2]);
 803         _put_byte(&p, cval[3]);
 804         skb_put(skb, (u8 *)p - (u8 *)skb->data);
 805
 806         skb_queue_tail(&card->dma->send_queue, skb);
 807
 808         spin_lock_irqsave(&card->lock, flags);
 809         c4_dispatch_tx(card);
 810         spin_unlock_irqrestore(&card->lock, flags);
 811         return 0;
 812 }
 813
 814 static int c4_send_config(avmcard *card, capiloaddatapart * config)
 815 {
 816         u8 val[4];
 817         unsigned char *dp;
 818         u_int left;
 819         int retval;
 820
 821         if ((retval = queue_sendconfigword(card, 1)) != 0)
 822                 return retval;
 823         if ((retval = queue_sendconfigword(card, config->len)) != 0)
 824                 return retval;
 825
 826         dp = config->data;
 827         left = config->len;
 828         while (left >= sizeof(u32)) {
 829                 if (config->user) {
 830                         if (copy_from_user(val, dp, sizeof(val)))
 831                                 return -EFAULT;
 832                 } else {
 833                         memcpy(val, dp, sizeof(val));
 834                 }
 835                 if ((retval = queue_sendconfig(card, val)) != 0)
 836                         return retval;
 837                 left -= sizeof(val);
 838                 dp += sizeof(val);
 839         }
 840         if (left) {
 841                 memset(val, 0, sizeof(val));
 842                 if (config->user) {
 843                         if (copy_from_user(&val, dp, left))
 844                                 return -EFAULT;
 845                 } else {
 846                         memcpy(&val, dp, left);
 847                 }
 848                 if ((retval = queue_sendconfig(card, val)) != 0)
 849                         return retval;
 850         }
 851
 852         return 0;
 853 }
 854
 855 static int c4_load_firmware(struct capi_ctr *ctrl, capiloaddata *data)
 856 {
 857         avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
 858         avmcard *card = cinfo->card;
 859         int retval;
 860
 861         if ((retval = c4_load_t4file(card, &data->firmware))) {
 862                 printk(KERN_ERR "%s: failed to load t4file!!\n",
 863                                         card->name);
 864                 c4_reset(card);
 865                 return retval;
 866         }
 867
 868         card->csr = 0;
 869         c4outmeml(card->mbase+MBOX_UP_LEN, 0);
 870         c4outmeml(card->mbase+MBOX_DOWN_LEN, 0);
 871         c4outmeml(card->mbase+DOORBELL, DBELL_INIT);
 872         mdelay(1);
 873         c4outmeml(card->mbase+DOORBELL,
 874                         DBELL_UP_HOST | DBELL_DOWN_HOST | DBELL_RESET_HOST);
 875
 876         c4outmeml(card->mbase+PCI_OUT_INT_MASK, 0x08);
 877
 878         card->dma->recvlen = 0;
 879         c4outmeml(card->mbase+MBOX_UP_ADDR, card->dma->recvbuf.dmaaddr);
 880         c4outmeml(card->mbase+MBOX_UP_LEN, card->dma->recvbuf.size);
 881         c4outmeml(card->mbase+DOORBELL, DBELL_UP_ARM);
 882
 883         if (data->configuration.len > 0 && data->configuration.data) {
 884                 retval = c4_send_config(card, &data->configuration);
 885                 if (retval) {
 886                         printk(KERN_ERR "%s: failed to set config!!\n",
 887                                         card->name);
 888                         c4_reset(card);
 889                         return retval;
 890                 }
 891         }
 892
 893         c4_send_init(card);
 894
 895         return 0;
 896 }
 897
 898
 899 static void c4_reset_ctr(struct capi_ctr *ctrl)
 900 {
 901         avmcard *card = ((avmctrl_info *)(ctrl->driverdata))->card;
 902         avmctrl_info *cinfo;
 903         u_int i;
 904         unsigned long flags;
 905
 906         spin_lock_irqsave(&card->lock, flags);
 907
 908         c4_reset(card);
 909
 910         spin_unlock_irqrestore(&card->lock, flags);
 911
 912         for (i=0; i < card->nr_controllers; i++) {
 913                 cinfo = &card->ctrlinfo[i];
 914                 memset(cinfo->version, 0, sizeof(cinfo->version));
 915                 capi_ctr_down(&cinfo->capi_ctrl);
 916         }
 917         card->nlogcontr = 0;
 918 }
 919
 920 static void c4_remove(struct pci_dev *pdev)
 921 {
 922         avmcard *card = pci_get_drvdata(pdev);
 923         avmctrl_info *cinfo;
 924         u_int i;
 925
 926         if (!card)
 927                 return;
 928
 929         c4_reset(card);
 930
 931         for (i=0; i < card->nr_controllers; i++) {
 932                 cinfo = &card->ctrlinfo[i];
 933                 detach_capi_ctr(&cinfo->capi_ctrl);
 934         }
 935
 936         free_irq(card->irq, card);
 937         iounmap(card->mbase);
 938         release_region(card->port, AVMB1_PORTLEN);
 939         avmcard_dma_free(card->dma);
 940         pci_set_drvdata(pdev, NULL);
 941         b1_free_card(card);
 942 }
 943
 944 /* ------------------------------------------------------------- */
 945
 946
 947 static void c4_register_appl(struct capi_ctr *ctrl,
 948                                 u16 appl,
 949                                 capi_register_params *rp)
 950 {
 951         avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
 952         avmcard *card = cinfo->card;
 953         struct sk_buff *skb;
 954         int want = rp->level3cnt;
 955         unsigned long flags;
 956         int nconn;
 957         void *p;
 958
 959         if (ctrl->cnr == card->cardnr) {
 960
 961                 if (want > 0) nconn = want;
 962                 else nconn = ctrl->profile.nbchannel * 4 * -want;
 963                 if (nconn == 0) nconn = ctrl->profile.nbchannel * 4;
 964
 965                 skb = alloc_skb(23, GFP_ATOMIC);
 966                 if (!skb) {
 967                         printk(KERN_CRIT "%s: no memory, lost register appl.\n",
 968                                                 card->name);
 969                         return;
 970                 }
 971                 p = skb->data;
 972                 _put_byte(&p, 0);
 973                 _put_byte(&p, 0);
 974                 _put_byte(&p, SEND_REGISTER);
 975                 _put_word(&p, appl);
 976                 _put_word(&p, 1024 * (nconn+1));
 977                 _put_word(&p, nconn);
 978                 _put_word(&p, rp->datablkcnt);
 979                 _put_word(&p, rp->datablklen);
 980                 skb_put(skb, (u8 *)p - (u8 *)skb->data);
 981
 982                 skb_queue_tail(&card->dma->send_queue, skb);
 983
 984                 spin_lock_irqsave(&card->lock, flags);
 985                 c4_dispatch_tx(card);
 986                 spin_unlock_irqrestore(&card->lock, flags);
 987         }
 988 }
 989
 990 /* ------------------------------------------------------------- */
 991
 992 static void c4_release_appl(struct capi_ctr *ctrl, u16 appl)
 993 {
 994         avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
 995         avmcard *card = cinfo->card;
 996         unsigned long flags;
 997         struct sk_buff *skb;
 998         void *p;
 999
1000         spin_lock_irqsave(&card->lock, flags);
1001         capilib_release_appl(&cinfo->ncci_head, appl);
1002         spin_unlock_irqrestore(&card->lock, flags);
1003
1004         if (ctrl->cnr == card->cardnr) {
1005                 skb = alloc_skb(7, GFP_ATOMIC);
1006                 if (!skb) {
1007                         printk(KERN_CRIT "%s: no memory, lost release appl.\n",
1008                                                 card->name);
1009                         return;
1010                 }
1011                 p = skb->data;
1012                 _put_byte(&p, 0);
1013                 _put_byte(&p, 0);
1014                 _put_byte(&p, SEND_RELEASE);
1015                 _put_word(&p, appl);
1016
1017                 skb_put(skb, (u8 *)p - (u8 *)skb->data);
1018                 skb_queue_tail(&card->dma->send_queue, skb);
1019                 spin_lock_irqsave(&card->lock, flags);
1020                 c4_dispatch_tx(card);
1021                 spin_unlock_irqrestore(&card->lock, flags);
1022         }
1023 }
1024
1025 /* ------------------------------------------------------------- */
1026
1027
1028 static u16 c4_send_message(struct capi_ctr *ctrl, struct sk_buff *skb)
1029 {
1030         avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
1031         avmcard *card = cinfo->card;
1032         u16 retval = CAPI_NOERROR;
1033         unsigned long flags;
1034
1035         spin_lock_irqsave(&card->lock, flags);
1036         if (CAPIMSG_CMD(skb->data) == CAPI_DATA_B3_REQ) {
1037                 retval = capilib_data_b3_req(&cinfo->ncci_head,
1038                                              CAPIMSG_APPID(skb->data),
1039                                              CAPIMSG_NCCI(skb->data),
1040                                              CAPIMSG_MSGID(skb->data));
1041         }
1042         if (retval == CAPI_NOERROR) {
1043                 skb_queue_tail(&card->dma->send_queue, skb);
1044                 c4_dispatch_tx(card);
1045         }
1046         spin_unlock_irqrestore(&card->lock, flags);
1047         return retval;
1048 }
1049
1050 /* ------------------------------------------------------------- */
1051
1052 static char *c4_procinfo(struct capi_ctr *ctrl)
1053 {
1054         avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
1055
1056         if (!cinfo)
1057                 return "";
1058         sprintf(cinfo->infobuf, "%s %s 0x%x %d 0x%lx",
1059                 cinfo->cardname[0] ? cinfo->cardname : "-",
1060                 cinfo->version[VER_DRIVER] ? cinfo->version[VER_DRIVER] : "-",
1061                 cinfo->card ? cinfo->card->port : 0x0,
1062                 cinfo->card ? cinfo->card->irq : 0,
1063                 cinfo->card ? cinfo->card->membase : 0
1064                 );
1065         return cinfo->infobuf;
1066 }
1067
1068 static int c4_proc_show(struct seq_file *m, void *v)
1069 {
1070         struct capi_ctr *ctrl = m->private;
1071         avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
1072         avmcard *card = cinfo->card;
1073         u8 flag;
1074         char *s;
1075
1076         seq_printf(m, "%-16s %s\n", "name", card->name);
1077         seq_printf(m, "%-16s 0x%x\n", "io", card->port);
1078         seq_printf(m, "%-16s %d\n", "irq", card->irq);
1079         seq_printf(m, "%-16s 0x%lx\n", "membase", card->membase);
1080         switch (card->cardtype) {
1081         case avm_b1isa: s = "B1 ISA"; break;
1082         case avm_b1pci: s = "B1 PCI"; break;
1083         case avm_b1pcmcia: s = "B1 PCMCIA"; break;
1084         case avm_m1: s = "M1"; break;
1085         case avm_m2: s = "M2"; break;
1086         case avm_t1isa: s = "T1 ISA (HEMA)"; break;
1087         case avm_t1pci: s = "T1 PCI"; break;
1088         case avm_c4: s = "C4"; break;
1089         case avm_c2: s = "C2"; break;
1090         default: s = "???"; break;
1091         }
1092         seq_printf(m, "%-16s %s\n", "type", s);
1093         if ((s = cinfo->version[VER_DRIVER]) != NULL)
1094                 seq_printf(m, "%-16s %s\n", "ver_driver", s);
1095         if ((s = cinfo->version[VER_CARDTYPE]) != NULL)
1096                 seq_printf(m, "%-16s %s\n", "ver_cardtype", s);
1097         if ((s = cinfo->version[VER_SERIAL]) != NULL)
1098                 seq_printf(m, "%-16s %s\n", "ver_serial", s);
1099
1100         if (card->cardtype != avm_m1) {
1101                 flag = ((u8 *)(ctrl->profile.manu))[3];
1102                 if (flag)
1103                         seq_printf(m, "%-16s%s%s%s%s%s%s%s\n",
1104                         "protocol",
1105                         (flag & 0x01) ? " DSS1" : "",
1106                         (flag & 0x02) ? " CT1" : "",
1107                         (flag & 0x04) ? " VN3" : "",
1108                         (flag & 0x08) ? " NI1" : "",
1109                         (flag & 0x10) ? " AUSTEL" : "",
1110                         (flag & 0x20) ? " ESS" : "",
1111                         (flag & 0x40) ? " 1TR6" : ""
1112                         );
1113         }
1114         if (card->cardtype != avm_m1) {
1115                 flag = ((u8 *)(ctrl->profile.manu))[5];
1116                 if (flag)
1117                         seq_printf(m, "%-16s%s%s%s%s\n",
1118                         "linetype",
1119                         (flag & 0x01) ? " point to point" : "",
1120                         (flag & 0x02) ? " point to multipoint" : "",
1121                         (flag & 0x08) ? " leased line without D-channel" : "",
1122                         (flag & 0x04) ? " leased line with D-channel" : ""
1123                         );
1124         }
1125         seq_printf(m, "%-16s %s\n", "cardname", cinfo->cardname);
1126
1127         return 0;
1128 }
1129
1130 static int c4_proc_open(struct inode *inode, struct file *file)
1131 {
1132         return single_open(file, c4_proc_show, PDE(inode)->data);
1133 }
1134
1135 static const struct file_operations c4_proc_fops = {
1136         .owner          = THIS_MODULE,
1137         .open           = c4_proc_open,
1138         .read           = seq_read,
1139         .llseek         = seq_lseek,
1140         .release        = single_release,
1141 };
1142
1143 /* ------------------------------------------------------------- */
1144
1145 static int c4_add_card(struct capicardparams *p, struct pci_dev *dev,
1146                        int nr_controllers)
1147 {
1148         avmcard *card;
1149         avmctrl_info *cinfo;
1150         int retval;
1151         int i;
1152
1153         card = b1_alloc_card(nr_controllers);
1154         if (!card) {
1155                 printk(KERN_WARNING "c4: no memory.\n");
1156                 retval = -ENOMEM;
1157                 goto err;
1158         }
1159         card->dma = avmcard_dma_alloc("c4", dev, 2048+128, 2048+128);
1160         if (!card->dma) {
1161                 printk(KERN_WARNING "c4: no memory.\n");
1162                 retval = -ENOMEM;
1163                 goto err_free;
1164         }
1165
1166         sprintf(card->name, "c%d-%x", nr_controllers, p->port);
1167         card->port = p->port;
1168         card->irq = p->irq;
1169         card->membase = p->membase;
1170         card->cardtype = (nr_controllers == 4) ? avm_c4 : avm_c2;
1171
1172         if (!request_region(card->port, AVMB1_PORTLEN, card->name)) {
1173                 printk(KERN_WARNING "c4: ports 0x%03x-0x%03x in use.\n",
1174                        card->port, card->port + AVMB1_PORTLEN);
1175                 retval = -EBUSY;
1176                 goto err_free_dma;
1177         }
1178
1179         card->mbase = ioremap(card->membase, 128);
1180         if (card->mbase == NULL) {
1181                 printk(KERN_NOTICE "c4: can't remap memory at 0x%lx\n",
1182                        card->membase);
1183                 retval = -EIO;
1184                 goto err_release_region;
1185         }
1186
1187         retval = c4_detect(card);
1188         if (retval != 0) {
1189                 printk(KERN_NOTICE "c4: NO card at 0x%x error(%d)\n",
1190                        card->port, retval);
1191                 retval = -EIO;
1192                 goto err_unmap;
1193         }
1194         c4_reset(card);
1195
1196         retval = request_irq(card->irq, c4_interrupt, IRQF_SHARED, card->name, card);
1197         if (retval) {
1198                 printk(KERN_ERR "c4: unable to get IRQ %d.\n",card->irq);
1199                 retval = -EBUSY;
1200                 goto err_unmap;
1201         }
1202
1203         for (i=0; i < nr_controllers ; i++) {
1204                 cinfo = &card->ctrlinfo[i];
1205                 cinfo->capi_ctrl.owner = THIS_MODULE;
1206                 cinfo->capi_ctrl.driver_name   = "c4";
1207                 cinfo->capi_ctrl.driverdata    = cinfo;
1208                 cinfo->capi_ctrl.register_appl = c4_register_appl;
1209                 cinfo->capi_ctrl.release_appl  = c4_release_appl;
1210                 cinfo->capi_ctrl.send_message  = c4_send_message;
1211                 cinfo->capi_ctrl.load_firmware = c4_load_firmware;
1212                 cinfo->capi_ctrl.reset_ctr     = c4_reset_ctr;
1213                 cinfo->capi_ctrl.procinfo      = c4_procinfo;
1214                 cinfo->capi_ctrl.proc_fops = &c4_proc_fops;
1215                 strcpy(cinfo->capi_ctrl.name, card->name);
1216
1217                 retval = attach_capi_ctr(&cinfo->capi_ctrl);
1218                 if (retval) {
1219                         printk(KERN_ERR "c4: attach controller failed (%d).\n", i);
1220                         for (i--; i >= 0; i--) {
1221                                 cinfo = &card->ctrlinfo[i];
1222                                 detach_capi_ctr(&cinfo->capi_ctrl);
1223                         }
1224                         goto err_free_irq;
1225                 }
1226                 if (i == 0)
1227                         card->cardnr = cinfo->capi_ctrl.cnr;
1228         }
1229
1230         printk(KERN_INFO "c4: AVM C%d at i/o %#x, irq %d, mem %#lx\n",
1231                nr_controllers, card->port, card->irq,
1232                card->membase);
1233         pci_set_drvdata(dev, card);
1234         return 0;
1235
1236  err_free_irq:
1237         free_irq(card->irq, card);
1238  err_unmap:
1239         iounmap(card->mbase);
1240  err_release_region:
1241         release_region(card->port, AVMB1_PORTLEN);
1242  err_free_dma:
1243         avmcard_dma_free(card->dma);
1244  err_free:
1245         b1_free_card(card);
1246  err:
1247         return retval;
1248 }
1249
1250 /* ------------------------------------------------------------- */
1251
1252 static int __devinit c4_probe(struct pci_dev *dev,
1253                               const struct pci_device_id *ent)
1254 {
1255         int nr = ent->driver_data;
1256         int retval = 0;
1257         struct capicardparams param;
1258
1259         if (pci_enable_device(dev) < 0) {
1260                 printk(KERN_ERR "c4: failed to enable AVM-C%d\n", nr);
1261                 return -ENODEV;
1262         }
1263         pci_set_master(dev);
1264
1265         param.port = pci_resource_start(dev, 1);
1266         param.irq = dev->irq;
1267         param.membase = pci_resource_start(dev, 0);
1268
1269         printk(KERN_INFO "c4: PCI BIOS reports AVM-C%d at i/o %#x, irq %d, mem %#x\n",
1270                nr, param.port, param.irq, param.membase);
1271
1272         retval = c4_add_card(&param, dev, nr);
1273         if (retval != 0) {
1274                 printk(KERN_ERR "c4: no AVM-C%d at i/o %#x, irq %d detected, mem %#x\n",
1275                        nr, param.port, param.irq, param.membase);
1276                 return -ENODEV;
1277         }
1278         return 0;
1279 }
1280
1281 static struct pci_driver c4_pci_driver = {
1282        .name           = "c4",
1283        .id_table       = c4_pci_tbl,
1284        .probe          = c4_probe,
1285        .remove         = c4_remove,
1286 };
1287
1288 static struct capi_driver capi_driver_c2 = {
1289         .name           = "c2",
1290         .revision       = "1.0",
1291 };
1292
1293 static struct capi_driver capi_driver_c4 = {
1294         .name           = "c4",
1295         .revision       = "1.0",
1296 };
1297
1298 static int __init c4_init(void)
1299 {
1300         char *p;
1301         char rev[32];
1302         int err;
1303
1304         if ((p = strchr(revision, ':')) != NULL && p[1]) {
1305                 strlcpy(rev, p + 2, 32);
1306                 if ((p = strchr(rev, '$')) != NULL && p > rev)
1307                    *(p-1) = 0;
1308         } else
1309                 strcpy(rev, "1.0");
1310
1311         err = pci_register_driver(&c4_pci_driver);
1312         if (!err) {
1313                 strlcpy(capi_driver_c2.revision, rev, 32);
1314                 register_capi_driver(&capi_driver_c2);
1315                 strlcpy(capi_driver_c4.revision, rev, 32);
1316                 register_capi_driver(&capi_driver_c4);
1317                 printk(KERN_INFO "c4: revision %s\n", rev);
1318         }
1319         return err;
1320 }
1321
1322 static void __exit c4_exit(void)
1323 {
1324         unregister_capi_driver(&capi_driver_c2);
1325         unregister_capi_driver(&capi_driver_c4);
1326         pci_unregister_driver(&c4_pci_driver);
1327 }
1328
1329 module_init(c4_init);
1330 module_exit(c4_exit);