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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/skbuff.h>
  15 #include <linux/delay.h>
  16 #include <linux/mm.h>
  17 #include <linux/interrupt.h>
  18 #include <linux/ioport.h>
  19 #include <linux/pci.h>
  20 #include <linux/capi.h>
  21 #include <linux/kernelcapi.h>
  22 #include <linux/init.h>
  23 #include <asm/io.h>
  24 #include <asm/uaccess.h>
  25 #include <linux/netdevice.h>
  26 #include <linux/isdn/capicmd.h>
  27 #include <linux/isdn/capiutil.h>
  28 #include <linux/isdn/capilli.h>
  29 #include "avmcard.h"
  30
  31 #undef CONFIG_C4_DEBUG
  32 #undef CONFIG_C4_POLLDEBUG
  33
  34 /* ------------------------------------------------------------- */
  35
  36 static char *revision = "$Revision: 1.1.2.2 $";
  37
  38 /* ------------------------------------------------------------- */
  39
  40 static int suppress_pollack;
  41
  42 static struct pci_device_id c4_pci_tbl[] = {
  43         { PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_21285, PCI_VENDOR_ID_AVM, PCI_DEVICE_ID_AVM_C4, 0, 0, (unsigned long)4 },
  44         { PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_21285, PCI_VENDOR_ID_AVM, PCI_DEVICE_ID_AVM_C2, 0, 0, (unsigned long)2 },
  45         { }                     /* Terminating entry */
  46 };
  47
  48 MODULE_DEVICE_TABLE(pci, c4_pci_tbl);
  49 MODULE_DESCRIPTION("CAPI4Linux: Driver for AVM C2/C4 cards");
  50 MODULE_AUTHOR("Carsten Paeth");
  51 MODULE_LICENSE("GPL");
  52 module_param(suppress_pollack, bool, 0);
  53
  54 /* ------------------------------------------------------------- */
  55
  56 static void c4_dispatch_tx(avmcard *card);
  57
  58 /* ------------------------------------------------------------- */
  59
  60 #define DC21285_DRAM_A0MR       0x40000000
  61 #define DC21285_DRAM_A1MR       0x40004000
  62 #define DC21285_DRAM_A2MR       0x40008000
  63 #define DC21285_DRAM_A3MR       0x4000C000
  64
  65 #define CAS_OFFSET      0x88
  66
  67 #define DC21285_ARMCSR_BASE     0x42000000
  68
  69 #define PCI_OUT_INT_STATUS      0x30
  70 #define PCI_OUT_INT_MASK        0x34
  71 #define MAILBOX_0               0x50
  72 #define MAILBOX_1               0x54
  73 #define MAILBOX_2               0x58
  74 #define MAILBOX_3               0x5C
  75 #define DOORBELL                0x60
  76 #define DOORBELL_SETUP          0x64
  77
  78 #define CHAN_1_CONTROL          0x90
  79 #define CHAN_2_CONTROL          0xB0
  80 #define DRAM_TIMING             0x10C
  81 #define DRAM_ADDR_SIZE_0        0x110
  82 #define DRAM_ADDR_SIZE_1        0x114
  83 #define DRAM_ADDR_SIZE_2        0x118
  84 #define DRAM_ADDR_SIZE_3        0x11C
  85 #define SA_CONTROL              0x13C
  86 #define XBUS_CYCLE              0x148
  87 #define XBUS_STROBE             0x14C
  88 #define DBELL_PCI_MASK          0x150
  89 #define DBELL_SA_MASK           0x154
  90
  91 #define SDRAM_SIZE              0x1000000
  92
  93 /* ------------------------------------------------------------- */
  94
  95 #define MBOX_PEEK_POKE          MAILBOX_0
  96
  97 #define DBELL_ADDR              0x01
  98 #define DBELL_DATA              0x02
  99 #define DBELL_RNWR              0x40
 100 #define DBELL_INIT              0x80
 101
 102 /* ------------------------------------------------------------- */
 103
 104 #define MBOX_UP_ADDR            MAILBOX_0
 105 #define MBOX_UP_LEN             MAILBOX_1
 106 #define MBOX_DOWN_ADDR          MAILBOX_2
 107 #define MBOX_DOWN_LEN           MAILBOX_3
 108
 109 #define DBELL_UP_HOST           0x00000100
 110 #define DBELL_UP_ARM            0x00000200
 111 #define DBELL_DOWN_HOST         0x00000400
 112 #define DBELL_DOWN_ARM          0x00000800
 113 #define DBELL_RESET_HOST        0x40000000
 114 #define DBELL_RESET_ARM         0x80000000
 115
 116 /* ------------------------------------------------------------- */
 117
 118 #define DRAM_TIMING_DEF         0x001A01A5
 119 #define DRAM_AD_SZ_DEF0         0x00000045
 120 #define DRAM_AD_SZ_NULL         0x00000000
 121
 122 #define SA_CTL_ALLRIGHT         0x64AA0271
 123
 124 #define INIT_XBUS_CYCLE         0x100016DB
 125 #define INIT_XBUS_STROBE        0xF1F1F1F1
 126
 127 /* ------------------------------------------------------------- */
 128
 129 #define RESET_TIMEOUT           (15*HZ) /* 15 sec */
 130 #define PEEK_POKE_TIMEOUT       (HZ/10) /* 0.1 sec */
 131
 132 /* ------------------------------------------------------------- */
 133
 134 #define c4outmeml(addr, value)  writel(value, addr)
 135 #define c4inmeml(addr)  readl(addr)
 136 #define c4outmemw(addr, value)  writew(value, addr)
 137 #define c4inmemw(addr)  readw(addr)
 138 #define c4outmemb(addr, value)  writeb(value, addr)
 139 #define c4inmemb(addr)  readb(addr)
 140
 141 /* ------------------------------------------------------------- */
 142
 143 static inline int wait_for_doorbell(avmcard *card, unsigned long t)
 144 {
 145         unsigned long stop;
 146
 147         stop = jiffies + t;
 148         while (c4inmeml(card->mbase+DOORBELL) != 0xffffffff) {
 149                 if (!time_before(jiffies, stop))
 150                         return -1;
 151                 mb();
 152         }
 153         return 0;
 154 }
 155
 156 static int c4_poke(avmcard *card,  unsigned long off, unsigned long value)
 157 {
 158
 159         if (wait_for_doorbell(card, HZ/10) < 0)
 160                 return -1;
 161
 162         c4outmeml(card->mbase+MBOX_PEEK_POKE, off);
 163         c4outmeml(card->mbase+DOORBELL, DBELL_ADDR);
 164
 165         if (wait_for_doorbell(card, HZ/10) < 0)
 166                 return -1;
 167
 168         c4outmeml(card->mbase+MBOX_PEEK_POKE, value);
 169         c4outmeml(card->mbase+DOORBELL, DBELL_DATA | DBELL_ADDR);
 170
 171         return 0;
 172 }
 173
 174 static int c4_peek(avmcard *card,  unsigned long off, unsigned long *valuep)
 175 {
 176         if (wait_for_doorbell(card, HZ/10) < 0)
 177                 return -1;
 178
 179         c4outmeml(card->mbase+MBOX_PEEK_POKE, off);
 180         c4outmeml(card->mbase+DOORBELL, DBELL_RNWR | DBELL_ADDR);
 181
 182         if (wait_for_doorbell(card, HZ/10) < 0)
 183                 return -1;
 184
 185         *valuep = c4inmeml(card->mbase+MBOX_PEEK_POKE);
 186
 187         return 0;
 188 }
 189
 190 /* ------------------------------------------------------------- */
 191
 192 static int c4_load_t4file(avmcard *card, capiloaddatapart * t4file)
 193 {
 194         u32 val;
 195         unsigned char *dp;
 196         u_int left;
 197         u32 loadoff = 0;
 198
 199         dp = t4file->data;
 200         left = t4file->len;
 201         while (left >= sizeof(u32)) {
 202                 if (t4file->user) {
 203                         if (copy_from_user(&val, dp, sizeof(val)))
 204                                 return -EFAULT;
 205                 } else {
 206                         memcpy(&val, dp, sizeof(val));
 207                 }
 208                 if (c4_poke(card, loadoff, val)) {
 209                         printk(KERN_ERR "%s: corrupted firmware file ?\n",
 210                                         card->name);
 211                         return -EIO;
 212                 }
 213                 left -= sizeof(u32);
 214                 dp += sizeof(u32);
 215                 loadoff += sizeof(u32);
 216         }
 217         if (left) {
 218                 val = 0;
 219                 if (t4file->user) {
 220                         if (copy_from_user(&val, dp, left))
 221                                 return -EFAULT;
 222                 } else {
 223                         memcpy(&val, dp, left);
 224                 }
 225                 if (c4_poke(card, loadoff, val)) {
 226                         printk(KERN_ERR "%s: corrupted firmware file ?\n",
 227                                         card->name);
 228                         return -EIO;
 229                 }
 230         }
 231         return 0;
 232 }
 233
 234 /* ------------------------------------------------------------- */
 235
 236 static inline void _put_byte(void **pp, u8 val)
 237 {
 238         u8 *s = *pp;
 239         *s++ = val;
 240         *pp = s;
 241 }
 242
 243 static inline void _put_word(void **pp, u32 val)
 244 {
 245         u8 *s = *pp;
 246         *s++ = val & 0xff;
 247         *s++ = (val >> 8) & 0xff;
 248         *s++ = (val >> 16) & 0xff;
 249         *s++ = (val >> 24) & 0xff;
 250         *pp = s;
 251 }
 252
 253 static inline void _put_slice(void **pp, unsigned char *dp, unsigned int len)
 254 {
 255         unsigned i = len;
 256         _put_word(pp, i);
 257         while (i-- > 0)
 258                 _put_byte(pp, *dp++);
 259 }
 260
 261 static inline u8 _get_byte(void **pp)
 262 {
 263         u8 *s = *pp;
 264         u8 val;
 265         val = *s++;
 266         *pp = s;
 267         return val;
 268 }
 269
 270 static inline u32 _get_word(void **pp)
 271 {
 272         u8 *s = *pp;
 273         u32 val;
 274         val = *s++;
 275         val |= (*s++ << 8);
 276         val |= (*s++ << 16);
 277         val |= (*s++ << 24);
 278         *pp = s;
 279         return val;
 280 }
 281
 282 static inline u32 _get_slice(void **pp, unsigned char *dp)
 283 {
 284         unsigned int len, i;
 285
 286         len = i = _get_word(pp);
 287         while (i-- > 0) *dp++ = _get_byte(pp);
 288         return len;
 289 }
 290
 291 /* ------------------------------------------------------------- */
 292
 293 static void c4_reset(avmcard *card)
 294 {
 295         unsigned long stop;
 296
 297         c4outmeml(card->mbase+DOORBELL, DBELL_RESET_ARM);
 298
 299         stop = jiffies + HZ*10;
 300         while (c4inmeml(card->mbase+DOORBELL) != 0xffffffff) {
 301                 if (!time_before(jiffies, stop))
 302                         return;
 303                 c4outmeml(card->mbase+DOORBELL, DBELL_ADDR);
 304                 mb();
 305         }
 306
 307         c4_poke(card, DC21285_ARMCSR_BASE + CHAN_1_CONTROL, 0);
 308         c4_poke(card, DC21285_ARMCSR_BASE + CHAN_2_CONTROL, 0);
 309 }
 310
 311 /* ------------------------------------------------------------- */
 312
 313 static int c4_detect(avmcard *card)
 314 {
 315         unsigned long stop, dummy;
 316
 317         c4outmeml(card->mbase+PCI_OUT_INT_MASK, 0x0c);
 318         if (c4inmeml(card->mbase+PCI_OUT_INT_MASK) != 0x0c)
 319                 return  1;
 320
 321         c4outmeml(card->mbase+DOORBELL, DBELL_RESET_ARM);
 322
 323         stop = jiffies + HZ*10;
 324         while (c4inmeml(card->mbase+DOORBELL) != 0xffffffff) {
 325                 if (!time_before(jiffies, stop))
 326                         return 2;
 327                 c4outmeml(card->mbase+DOORBELL, DBELL_ADDR);
 328                 mb();
 329         }
 330
 331         c4_poke(card, DC21285_ARMCSR_BASE + CHAN_1_CONTROL, 0);
 332         c4_poke(card, DC21285_ARMCSR_BASE + CHAN_2_CONTROL, 0);
 333
 334         c4outmeml(card->mbase+MAILBOX_0, 0x55aa55aa);
 335         if (c4inmeml(card->mbase+MAILBOX_0) != 0x55aa55aa) return 3;
 336
 337         c4outmeml(card->mbase+MAILBOX_0, 0xaa55aa55);
 338         if (c4inmeml(card->mbase+MAILBOX_0) != 0xaa55aa55) return 4;
 339
 340         if (c4_poke(card, DC21285_ARMCSR_BASE+DBELL_SA_MASK, 0)) return 5;
 341         if (c4_poke(card, DC21285_ARMCSR_BASE+DBELL_PCI_MASK, 0)) return 6;
 342         if (c4_poke(card, DC21285_ARMCSR_BASE+SA_CONTROL, SA_CTL_ALLRIGHT))
 343                 return 7;
 344         if (c4_poke(card, DC21285_ARMCSR_BASE+XBUS_CYCLE, INIT_XBUS_CYCLE))
 345                 return 8;
 346         if (c4_poke(card, DC21285_ARMCSR_BASE+XBUS_STROBE, INIT_XBUS_STROBE))
 347                 return 8;
 348         if (c4_poke(card, DC21285_ARMCSR_BASE+DRAM_TIMING, 0)) return 9;
 349
 350         mdelay(1);
 351
 352         if (c4_peek(card, DC21285_DRAM_A0MR, &dummy)) return 10;
 353         if (c4_peek(card, DC21285_DRAM_A1MR, &dummy)) return 11;
 354         if (c4_peek(card, DC21285_DRAM_A2MR, &dummy)) return 12;
 355         if (c4_peek(card, DC21285_DRAM_A3MR, &dummy)) return 13;
 356
 357         if (c4_poke(card, DC21285_DRAM_A0MR+CAS_OFFSET, 0)) return 14;
 358         if (c4_poke(card, DC21285_DRAM_A1MR+CAS_OFFSET, 0)) return 15;
 359         if (c4_poke(card, DC21285_DRAM_A2MR+CAS_OFFSET, 0)) return 16;
 360         if (c4_poke(card, DC21285_DRAM_A3MR+CAS_OFFSET, 0)) return 17;
 361
 362         mdelay(1);
 363
 364         if (c4_poke(card, DC21285_ARMCSR_BASE+DRAM_TIMING, DRAM_TIMING_DEF))
 365                 return 18;
 366
 367         if (c4_poke(card, DC21285_ARMCSR_BASE+DRAM_ADDR_SIZE_0,DRAM_AD_SZ_DEF0))
 368                 return 19;
 369         if (c4_poke(card, DC21285_ARMCSR_BASE+DRAM_ADDR_SIZE_1,DRAM_AD_SZ_NULL))
 370                 return 20;
 371         if (c4_poke(card, DC21285_ARMCSR_BASE+DRAM_ADDR_SIZE_2,DRAM_AD_SZ_NULL))
 372                 return 21;
 373         if (c4_poke(card, DC21285_ARMCSR_BASE+DRAM_ADDR_SIZE_3,DRAM_AD_SZ_NULL))
 374                 return 22;
 375
 376         /* Transputer test */
 377
 378         if (   c4_poke(card, 0x000000, 0x11111111)
 379             || c4_poke(card, 0x400000, 0x22222222)
 380             || c4_poke(card, 0x800000, 0x33333333)
 381             || c4_poke(card, 0xC00000, 0x44444444))
 382                 return 23;
 383
 384         if (   c4_peek(card, 0x000000, &dummy) || dummy != 0x11111111
 385             || c4_peek(card, 0x400000, &dummy) || dummy != 0x22222222
 386             || c4_peek(card, 0x800000, &dummy) || dummy != 0x33333333
 387             || c4_peek(card, 0xC00000, &dummy) || dummy != 0x44444444)
 388                 return 24;
 389
 390         if (   c4_poke(card, 0x000000, 0x55555555)
 391             || c4_poke(card, 0x400000, 0x66666666)
 392             || c4_poke(card, 0x800000, 0x77777777)
 393             || c4_poke(card, 0xC00000, 0x88888888))
 394                 return 25;
 395
 396         if (   c4_peek(card, 0x000000, &dummy) || dummy != 0x55555555
 397             || c4_peek(card, 0x400000, &dummy) || dummy != 0x66666666
 398             || c4_peek(card, 0x800000, &dummy) || dummy != 0x77777777
 399             || c4_peek(card, 0xC00000, &dummy) || dummy != 0x88888888)
 400                 return 26;
 401
 402         return 0;
 403 }
 404
 405 /* ------------------------------------------------------------- */
 406
 407 static void c4_dispatch_tx(avmcard *card)
 408 {
 409         avmcard_dmainfo *dma = card->dma;
 410         struct sk_buff *skb;
 411         u8 cmd, subcmd;
 412         u16 len;
 413         u32 txlen;
 414         void *p;
 415
 416
 417         if (card->csr & DBELL_DOWN_ARM) { /* tx busy */
 418                 return;
 419         }
 420
 421         skb = skb_dequeue(&dma->send_queue);
 422         if (!skb) {
 423 #ifdef CONFIG_C4_DEBUG
 424                 printk(KERN_DEBUG "%s: tx underrun\n", card->name);
 425 #endif
 426                 return;
 427         }
 428
 429         len = CAPIMSG_LEN(skb->data);
 430
 431         if (len) {
 432                 cmd = CAPIMSG_COMMAND(skb->data);
 433                 subcmd = CAPIMSG_SUBCOMMAND(skb->data);
 434
 435                 p = dma->sendbuf.dmabuf;
 436
 437                 if (CAPICMD(cmd, subcmd) == CAPI_DATA_B3_REQ) {
 438                         u16 dlen = CAPIMSG_DATALEN(skb->data);
 439                         _put_byte(&p, SEND_DATA_B3_REQ);
 440                         _put_slice(&p, skb->data, len);
 441                         _put_slice(&p, skb->data + len, dlen);
 442                 } else {
 443                         _put_byte(&p, SEND_MESSAGE);
 444                         _put_slice(&p, skb->data, len);
 445                 }
 446                 txlen = (u8 *)p - (u8 *)dma->sendbuf.dmabuf;
 447 #ifdef CONFIG_C4_DEBUG
 448                 printk(KERN_DEBUG "%s: tx put msg len=%d\n", card->name, txlen);
 449 #endif
 450         } else {
 451                 txlen = skb->len-2;
 452 #ifdef CONFIG_C4_POLLDEBUG
 453                 if (skb->data[2] == SEND_POLLACK)
 454                         printk(KERN_INFO "%s: ack to c4\n", card->name);
 455 #endif
 456 #ifdef CONFIG_C4_DEBUG
 457                 printk(KERN_DEBUG "%s: tx put 0x%x len=%d\n",
 458                                 card->name, skb->data[2], txlen);
 459 #endif
 460                 memcpy(dma->sendbuf.dmabuf, skb->data+2, skb->len-2);
 461         }
 462         txlen = (txlen + 3) & ~3;
 463
 464         c4outmeml(card->mbase+MBOX_DOWN_ADDR, dma->sendbuf.dmaaddr);
 465         c4outmeml(card->mbase+MBOX_DOWN_LEN, txlen);
 466
 467         card->csr |= DBELL_DOWN_ARM;
 468
 469         c4outmeml(card->mbase+DOORBELL, DBELL_DOWN_ARM);
 470
 471         dev_kfree_skb_any(skb);
 472 }
 473
 474 /* ------------------------------------------------------------- */
 475
 476 static void queue_pollack(avmcard *card)
 477 {
 478         struct sk_buff *skb;
 479         void *p;
 480
 481         skb = alloc_skb(3, GFP_ATOMIC);
 482         if (!skb) {
 483                 printk(KERN_CRIT "%s: no memory, lost poll ack\n",
 484                                         card->name);
 485                 return;
 486         }
 487         p = skb->data;
 488         _put_byte(&p, 0);
 489         _put_byte(&p, 0);
 490         _put_byte(&p, SEND_POLLACK);
 491         skb_put(skb, (u8 *)p - (u8 *)skb->data);
 492
 493         skb_queue_tail(&card->dma->send_queue, skb);
 494         c4_dispatch_tx(card);
 495 }
 496
 497 /* ------------------------------------------------------------- */
 498
 499 static void c4_handle_rx(avmcard *card)
 500 {
 501         avmcard_dmainfo *dma = card->dma;
 502         struct capi_ctr *ctrl;
 503         avmctrl_info *cinfo;
 504         struct sk_buff *skb;
 505         void *p = dma->recvbuf.dmabuf;
 506         u32 ApplId, MsgLen, DataB3Len, NCCI, WindowSize;
 507         u8 b1cmd =  _get_byte(&p);
 508         u32 cidx;
 509
 510
 511 #ifdef CONFIG_C4_DEBUG
 512         printk(KERN_DEBUG "%s: rx 0x%x len=%lu\n", card->name,
 513                                 b1cmd, (unsigned long)dma->recvlen);
 514 #endif
 515
 516         switch (b1cmd) {
 517         case RECEIVE_DATA_B3_IND:
 518
 519                 ApplId = (unsigned) _get_word(&p);
 520                 MsgLen = _get_slice(&p, card->msgbuf);
 521                 DataB3Len = _get_slice(&p, card->databuf);
 522                 cidx = CAPIMSG_CONTROLLER(card->msgbuf)-card->cardnr;
 523                 if (cidx >= card->nlogcontr) cidx = 0;
 524                 ctrl = &card->ctrlinfo[cidx].capi_ctrl;
 525
 526                 if (MsgLen < 30) { /* not CAPI 64Bit */
 527                         memset(card->msgbuf+MsgLen, 0, 30-MsgLen);
 528                         MsgLen = 30;
 529                         CAPIMSG_SETLEN(card->msgbuf, 30);
 530                 }
 531                 if (!(skb = alloc_skb(DataB3Len+MsgLen, GFP_ATOMIC))) {
 532                         printk(KERN_ERR "%s: incoming packet dropped\n",
 533                                         card->name);
 534                 } else {
 535                         memcpy(skb_put(skb, MsgLen), card->msgbuf, MsgLen);
 536                         memcpy(skb_put(skb, DataB3Len), card->databuf, DataB3Len);
 537                         capi_ctr_handle_message(ctrl, ApplId, skb);
 538                 }
 539                 break;
 540
 541         case RECEIVE_MESSAGE:
 542
 543                 ApplId = (unsigned) _get_word(&p);
 544                 MsgLen = _get_slice(&p, card->msgbuf);
 545                 cidx = CAPIMSG_CONTROLLER(card->msgbuf)-card->cardnr;
 546                 if (cidx >= card->nlogcontr) cidx = 0;
 547                 cinfo = &card->ctrlinfo[cidx];
 548                 ctrl = &card->ctrlinfo[cidx].capi_ctrl;
 549
 550                 if (!(skb = alloc_skb(MsgLen, GFP_ATOMIC))) {
 551                         printk(KERN_ERR "%s: incoming packet dropped\n",
 552                                         card->name);
 553                 } else {
 554                         memcpy(skb_put(skb, MsgLen), card->msgbuf, MsgLen);
 555                         if (CAPIMSG_CMD(skb->data) == CAPI_DATA_B3_CONF)
 556                                 capilib_data_b3_conf(&cinfo->ncci_head, ApplId,
 557                                                      CAPIMSG_NCCI(skb->data),
 558                                                      CAPIMSG_MSGID(skb->data));
 559
 560                         capi_ctr_handle_message(ctrl, ApplId, skb);
 561                 }
 562                 break;
 563
 564         case RECEIVE_NEW_NCCI:
 565
 566                 ApplId = _get_word(&p);
 567                 NCCI = _get_word(&p);
 568                 WindowSize = _get_word(&p);
 569                 cidx = (NCCI&0x7f) - card->cardnr;
 570                 if (cidx >= card->nlogcontr) cidx = 0;
 571
 572                 capilib_new_ncci(&card->ctrlinfo[cidx].ncci_head, ApplId, NCCI, WindowSize);
 573
 574                 break;
 575
 576         case RECEIVE_FREE_NCCI:
 577
 578                 ApplId = _get_word(&p);
 579                 NCCI = _get_word(&p);
 580
 581                 if (NCCI != 0xffffffff) {
 582                         cidx = (NCCI&0x7f) - card->cardnr;
 583                         if (cidx >= card->nlogcontr) cidx = 0;
 584                         capilib_free_ncci(&card->ctrlinfo[cidx].ncci_head, ApplId, NCCI);
 585                 }
 586                 break;
 587
 588         case RECEIVE_START:
 589 #ifdef CONFIG_C4_POLLDEBUG
 590                 printk(KERN_INFO "%s: poll from c4\n", card->name);
 591 #endif
 592                 if (!suppress_pollack)
 593                         queue_pollack(card);
 594                 for (cidx=0; cidx < card->nr_controllers; cidx++) {
 595                         ctrl = &card->ctrlinfo[cidx].capi_ctrl;
 596                         capi_ctr_resume_output(ctrl);
 597                 }
 598                 break;
 599
 600         case RECEIVE_STOP:
 601                 for (cidx=0; cidx < card->nr_controllers; cidx++) {
 602                         ctrl = &card->ctrlinfo[cidx].capi_ctrl;
 603                         capi_ctr_suspend_output(ctrl);
 604                 }
 605                 break;
 606
 607         case RECEIVE_INIT:
 608
 609                 cidx = card->nlogcontr;
 610                 if (cidx >= card->nr_controllers) {
 611                         printk(KERN_ERR "%s: card with %d controllers ??\n",
 612                                         card->name, cidx+1);
 613                         break;
 614                 }
 615                 card->nlogcontr++;
 616                 cinfo = &card->ctrlinfo[cidx];
 617                 ctrl = &cinfo->capi_ctrl;
 618                 cinfo->versionlen = _get_slice(&p, cinfo->versionbuf);
 619                 b1_parse_version(cinfo);
 620                 printk(KERN_INFO "%s: %s-card (%s) now active\n",
 621                        card->name,
 622                        cinfo->version[VER_CARDTYPE],
 623                        cinfo->version[VER_DRIVER]);
 624                 capi_ctr_ready(&cinfo->capi_ctrl);
 625                 break;
 626
 627         case RECEIVE_TASK_READY:
 628                 ApplId = (unsigned) _get_word(&p);
 629                 MsgLen = _get_slice(&p, card->msgbuf);
 630                 card->msgbuf[MsgLen] = 0;
 631                 while (    MsgLen > 0
 632                        && (   card->msgbuf[MsgLen-1] == '\n'
 633                            || card->msgbuf[MsgLen-1] == '\r')) {
 634                         card->msgbuf[MsgLen-1] = 0;
 635                         MsgLen--;
 636                 }
 637                 printk(KERN_INFO "%s: task %d \"%s\" ready.\n",
 638                                 card->name, ApplId, card->msgbuf);
 639                 break;
 640
 641         case RECEIVE_DEBUGMSG:
 642                 MsgLen = _get_slice(&p, card->msgbuf);
 643                 card->msgbuf[MsgLen] = 0;
 644                 while (    MsgLen > 0
 645                        && (   card->msgbuf[MsgLen-1] == '\n'
 646                            || card->msgbuf[MsgLen-1] == '\r')) {
 647                         card->msgbuf[MsgLen-1] = 0;
 648                         MsgLen--;
 649                 }
 650                 printk(KERN_INFO "%s: DEBUG: %s\n", card->name, card->msgbuf);
 651                 break;
 652
 653         default:
 654                 printk(KERN_ERR "%s: c4_interrupt: 0x%x ???\n",
 655                                 card->name, b1cmd);
 656                 return;
 657         }
 658 }
 659
 660 /* ------------------------------------------------------------- */
 661
 662 static irqreturn_t c4_handle_interrupt(avmcard *card)
 663 {
 664         unsigned long flags;
 665         u32 status;
 666
 667         spin_lock_irqsave(&card->lock, flags);
 668         status = c4inmeml(card->mbase+DOORBELL);
 669
 670         if (status & DBELL_RESET_HOST) {
 671                 u_int i;
 672                 c4outmeml(card->mbase+PCI_OUT_INT_MASK, 0x0c);
 673                 spin_unlock_irqrestore(&card->lock, flags);
 674                 if (card->nlogcontr == 0)
 675                         return IRQ_HANDLED;
 676                 printk(KERN_ERR "%s: unexpected reset\n", card->name);
 677                 for (i=0; i < card->nr_controllers; i++) {
 678                         avmctrl_info *cinfo = &card->ctrlinfo[i];
 679                         memset(cinfo->version, 0, sizeof(cinfo->version));
 680                         capilib_release(&cinfo->ncci_head);
 681                         capi_ctr_reseted(&cinfo->capi_ctrl);
 682                 }
 683                 card->nlogcontr = 0;
 684                 return IRQ_HANDLED;
 685         }
 686
 687         status &= (DBELL_UP_HOST | DBELL_DOWN_HOST);
 688         if (!status) {
 689                 spin_unlock_irqrestore(&card->lock, flags);
 690                 return IRQ_HANDLED;
 691         }
 692         c4outmeml(card->mbase+DOORBELL, status);
 693
 694         if ((status & DBELL_UP_HOST) != 0) {
 695                 card->dma->recvlen = c4inmeml(card->mbase+MBOX_UP_LEN);
 696                 c4outmeml(card->mbase+MBOX_UP_LEN, 0);
 697                 c4_handle_rx(card);
 698                 card->dma->recvlen = 0;
 699                 c4outmeml(card->mbase+MBOX_UP_LEN, card->dma->recvbuf.size);
 700                 c4outmeml(card->mbase+DOORBELL, DBELL_UP_ARM);
 701         }
 702
 703         if ((status & DBELL_DOWN_HOST) != 0) {
 704                 card->csr &= ~DBELL_DOWN_ARM;
 705                 c4_dispatch_tx(card);
 706         } else if (card->csr & DBELL_DOWN_HOST) {
 707                 if (c4inmeml(card->mbase+MBOX_DOWN_LEN) == 0) {
 708                         card->csr &= ~DBELL_DOWN_ARM;
 709                         c4_dispatch_tx(card);
 710                 }
 711         }
 712         spin_unlock_irqrestore(&card->lock, flags);
 713         return IRQ_HANDLED;
 714 }
 715
 716 static irqreturn_t c4_interrupt(int interrupt, void *devptr, struct pt_regs *regs)
 717 {
 718         avmcard *card = devptr;
 719
 720         return c4_handle_interrupt(card);
 721 }
 722
 723 /* ------------------------------------------------------------- */
 724
 725 static void c4_send_init(avmcard *card)
 726 {
 727         struct sk_buff *skb;
 728         void *p;
 729
 730         skb = alloc_skb(15, GFP_ATOMIC);
 731         if (!skb) {
 732                 printk(KERN_CRIT "%s: no memory, lost register appl.\n",
 733                                         card->name);
 734                 return;
 735         }
 736         p = skb->data;
 737         _put_byte(&p, 0);
 738         _put_byte(&p, 0);
 739         _put_byte(&p, SEND_INIT);
 740         _put_word(&p, CAPI_MAXAPPL);
 741         _put_word(&p, AVM_NCCI_PER_CHANNEL*30);
 742         _put_word(&p, card->cardnr - 1);
 743         skb_put(skb, (u8 *)p - (u8 *)skb->data);
 744
 745         skb_queue_tail(&card->dma->send_queue, skb);
 746         c4_dispatch_tx(card);
 747 }
 748
 749 static int queue_sendconfigword(avmcard *card, u32 val)
 750 {
 751         struct sk_buff *skb;
 752         void *p;
 753
 754         skb = alloc_skb(3+4, GFP_ATOMIC);
 755         if (!skb) {
 756                 printk(KERN_CRIT "%s: no memory, send config\n",
 757                                         card->name);
 758                 return -ENOMEM;
 759         }
 760         p = skb->data;
 761         _put_byte(&p, 0);
 762         _put_byte(&p, 0);
 763         _put_byte(&p, SEND_CONFIG);
 764         _put_word(&p, val);
 765         skb_put(skb, (u8 *)p - (u8 *)skb->data);
 766
 767         skb_queue_tail(&card->dma->send_queue, skb);
 768         c4_dispatch_tx(card);
 769         return 0;
 770 }
 771
 772 static int queue_sendconfig(avmcard *card, char cval[4])
 773 {
 774         struct sk_buff *skb;
 775         unsigned long flags;
 776         void *p;
 777
 778         skb = alloc_skb(3+4, GFP_ATOMIC);
 779         if (!skb) {
 780                 printk(KERN_CRIT "%s: no memory, send config\n",
 781                                         card->name);
 782                 return -ENOMEM;
 783         }
 784         p = skb->data;
 785         _put_byte(&p, 0);
 786         _put_byte(&p, 0);
 787         _put_byte(&p, SEND_CONFIG);
 788         _put_byte(&p, cval[0]);
 789         _put_byte(&p, cval[1]);
 790         _put_byte(&p, cval[2]);
 791         _put_byte(&p, cval[3]);
 792         skb_put(skb, (u8 *)p - (u8 *)skb->data);
 793
 794         skb_queue_tail(&card->dma->send_queue, skb);
 795
 796         spin_lock_irqsave(&card->lock, flags);
 797         c4_dispatch_tx(card);
 798         spin_unlock_irqrestore(&card->lock, flags);
 799         return 0;
 800 }
 801
 802 static int c4_send_config(avmcard *card, capiloaddatapart * config)
 803 {
 804         u8 val[4];
 805         unsigned char *dp;
 806         u_int left;
 807         int retval;
 808
 809         if ((retval = queue_sendconfigword(card, 1)) != 0)
 810                 return retval;
 811         if ((retval = queue_sendconfigword(card, config->len)) != 0)
 812                 return retval;
 813
 814         dp = config->data;
 815         left = config->len;
 816         while (left >= sizeof(u32)) {
 817                 if (config->user) {
 818                         if (copy_from_user(val, dp, sizeof(val)))
 819                                 return -EFAULT;
 820                 } else {
 821                         memcpy(val, dp, sizeof(val));
 822                 }
 823                 if ((retval = queue_sendconfig(card, val)) != 0)
 824                         return retval;
 825                 left -= sizeof(val);
 826                 dp += sizeof(val);
 827         }
 828         if (left) {
 829                 memset(val, 0, sizeof(val));
 830                 if (config->user) {
 831                         if (copy_from_user(&val, dp, left))
 832                                 return -EFAULT;
 833                 } else {
 834                         memcpy(&val, dp, left);
 835                 }
 836                 if ((retval = queue_sendconfig(card, val)) != 0)
 837                         return retval;
 838         }
 839
 840         return 0;
 841 }
 842
 843 static int c4_load_firmware(struct capi_ctr *ctrl, capiloaddata *data)
 844 {
 845         avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
 846         avmcard *card = cinfo->card;
 847         int retval;
 848
 849         if ((retval = c4_load_t4file(card, &data->firmware))) {
 850                 printk(KERN_ERR "%s: failed to load t4file!!\n",
 851                                         card->name);
 852                 c4_reset(card);
 853                 return retval;
 854         }
 855
 856         card->csr = 0;
 857         c4outmeml(card->mbase+MBOX_UP_LEN, 0);
 858         c4outmeml(card->mbase+MBOX_DOWN_LEN, 0);
 859         c4outmeml(card->mbase+DOORBELL, DBELL_INIT);
 860         mdelay(1);
 861         c4outmeml(card->mbase+DOORBELL,
 862                         DBELL_UP_HOST | DBELL_DOWN_HOST | DBELL_RESET_HOST);
 863
 864         c4outmeml(card->mbase+PCI_OUT_INT_MASK, 0x08);
 865
 866         card->dma->recvlen = 0;
 867         c4outmeml(card->mbase+MBOX_UP_ADDR, card->dma->recvbuf.dmaaddr);
 868         c4outmeml(card->mbase+MBOX_UP_LEN, card->dma->recvbuf.size);
 869         c4outmeml(card->mbase+DOORBELL, DBELL_UP_ARM);
 870
 871         if (data->configuration.len > 0 && data->configuration.data) {
 872                 retval = c4_send_config(card, &data->configuration);
 873                 if (retval) {
 874                         printk(KERN_ERR "%s: failed to set config!!\n",
 875                                         card->name);
 876                         c4_reset(card);
 877                         return retval;
 878                 }
 879         }
 880
 881         c4_send_init(card);
 882
 883         return 0;
 884 }
 885
 886
 887 static void c4_reset_ctr(struct capi_ctr *ctrl)
 888 {
 889         avmcard *card = ((avmctrl_info *)(ctrl->driverdata))->card;
 890         avmctrl_info *cinfo;
 891         u_int i;
 892         unsigned long flags;
 893
 894         spin_lock_irqsave(&card->lock, flags);
 895
 896         c4_reset(card);
 897
 898         spin_unlock_irqrestore(&card->lock, flags);
 899
 900         for (i=0; i < card->nr_controllers; i++) {
 901                 cinfo = &card->ctrlinfo[i];
 902                 memset(cinfo->version, 0, sizeof(cinfo->version));
 903                 capi_ctr_reseted(&cinfo->capi_ctrl);
 904         }
 905         card->nlogcontr = 0;
 906 }
 907
 908 static void c4_remove(struct pci_dev *pdev)
 909 {
 910         avmcard *card = pci_get_drvdata(pdev);
 911         avmctrl_info *cinfo;
 912         u_int i;
 913
 914         if (!card)
 915                 return;
 916
 917         c4_reset(card);
 918
 919         for (i=0; i < card->nr_controllers; i++) {
 920                 cinfo = &card->ctrlinfo[i];
 921                 detach_capi_ctr(&cinfo->capi_ctrl);
 922         }
 923
 924         free_irq(card->irq, card);
 925         iounmap(card->mbase);
 926         release_region(card->port, AVMB1_PORTLEN);
 927         avmcard_dma_free(card->dma);
 928         pci_set_drvdata(pdev, NULL);
 929         b1_free_card(card);
 930 }
 931
 932 /* ------------------------------------------------------------- */
 933
 934
 935 static void c4_register_appl(struct capi_ctr *ctrl,
 936                                 u16 appl,
 937                                 capi_register_params *rp)
 938 {
 939         avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
 940         avmcard *card = cinfo->card;
 941         struct sk_buff *skb;
 942         int want = rp->level3cnt;
 943         unsigned long flags;
 944         int nconn;
 945         void *p;
 946
 947         if (ctrl->cnr == card->cardnr) {
 948
 949                 if (want > 0) nconn = want;
 950                 else nconn = ctrl->profile.nbchannel * 4 * -want;
 951                 if (nconn == 0) nconn = ctrl->profile.nbchannel * 4;
 952
 953                 skb = alloc_skb(23, GFP_ATOMIC);
 954                 if (!skb) {
 955                         printk(KERN_CRIT "%s: no memory, lost register appl.\n",
 956                                                 card->name);
 957                         return;
 958                 }
 959                 p = skb->data;
 960                 _put_byte(&p, 0);
 961                 _put_byte(&p, 0);
 962                 _put_byte(&p, SEND_REGISTER);
 963                 _put_word(&p, appl);
 964                 _put_word(&p, 1024 * (nconn+1));
 965                 _put_word(&p, nconn);
 966                 _put_word(&p, rp->datablkcnt);
 967                 _put_word(&p, rp->datablklen);
 968                 skb_put(skb, (u8 *)p - (u8 *)skb->data);
 969
 970                 skb_queue_tail(&card->dma->send_queue, skb);
 971
 972                 spin_lock_irqsave(&card->lock, flags);
 973                 c4_dispatch_tx(card);
 974                 spin_unlock_irqrestore(&card->lock, flags);
 975         }
 976 }
 977
 978 /* ------------------------------------------------------------- */
 979
 980 static void c4_release_appl(struct capi_ctr *ctrl, u16 appl)
 981 {
 982         avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
 983         avmcard *card = cinfo->card;
 984         unsigned long flags;
 985         struct sk_buff *skb;
 986         void *p;
 987
 988         capilib_release_appl(&cinfo->ncci_head, appl);
 989
 990         if (ctrl->cnr == card->cardnr) {
 991                 skb = alloc_skb(7, GFP_ATOMIC);
 992                 if (!skb) {
 993                         printk(KERN_CRIT "%s: no memory, lost release appl.\n",
 994                                                 card->name);
 995                         return;
 996                 }
 997                 p = skb->data;
 998                 _put_byte(&p, 0);
 999                 _put_byte(&p, 0);
1000                 _put_byte(&p, SEND_RELEASE);
1001                 _put_word(&p, appl);
1002
1003                 skb_put(skb, (u8 *)p - (u8 *)skb->data);
1004                 skb_queue_tail(&card->dma->send_queue, skb);
1005                 spin_lock_irqsave(&card->lock, flags);
1006                 c4_dispatch_tx(card);
1007                 spin_unlock_irqrestore(&card->lock, flags);
1008         }
1009 }
1010
1011 /* ------------------------------------------------------------- */
1012
1013
1014 static u16 c4_send_message(struct capi_ctr *ctrl, struct sk_buff *skb)
1015 {
1016         avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
1017         avmcard *card = cinfo->card;
1018         u16 retval = CAPI_NOERROR;
1019         unsigned long flags;
1020
1021         if (CAPIMSG_CMD(skb->data) == CAPI_DATA_B3_REQ) {
1022                 retval = capilib_data_b3_req(&cinfo->ncci_head,
1023                                              CAPIMSG_APPID(skb->data),
1024                                              CAPIMSG_NCCI(skb->data),
1025                                              CAPIMSG_MSGID(skb->data));
1026         }
1027         if (retval == CAPI_NOERROR) {
1028                 skb_queue_tail(&card->dma->send_queue, skb);
1029                 spin_lock_irqsave(&card->lock, flags);
1030                 c4_dispatch_tx(card);
1031                 spin_unlock_irqrestore(&card->lock, flags);
1032         }
1033         return retval;
1034 }
1035
1036 /* ------------------------------------------------------------- */
1037
1038 static char *c4_procinfo(struct capi_ctr *ctrl)
1039 {
1040         avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
1041
1042         if (!cinfo)
1043                 return "";
1044         sprintf(cinfo->infobuf, "%s %s 0x%x %d 0x%lx",
1045                 cinfo->cardname[0] ? cinfo->cardname : "-",
1046                 cinfo->version[VER_DRIVER] ? cinfo->version[VER_DRIVER] : "-",
1047                 cinfo->card ? cinfo->card->port : 0x0,
1048                 cinfo->card ? cinfo->card->irq : 0,
1049                 cinfo->card ? cinfo->card->membase : 0
1050                 );
1051         return cinfo->infobuf;
1052 }
1053
1054 static int c4_read_proc(char *page, char **start, off_t off,
1055                         int count, int *eof, struct capi_ctr *ctrl)
1056 {
1057         avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
1058         avmcard *card = cinfo->card;
1059         u8 flag;
1060         int len = 0;
1061         char *s;
1062
1063         len += sprintf(page+len, "%-16s %s\n", "name", card->name);
1064         len += sprintf(page+len, "%-16s 0x%x\n", "io", card->port);
1065         len += sprintf(page+len, "%-16s %d\n", "irq", card->irq);
1066         len += sprintf(page+len, "%-16s 0x%lx\n", "membase", card->membase);
1067         switch (card->cardtype) {
1068         case avm_b1isa: s = "B1 ISA"; break;
1069         case avm_b1pci: s = "B1 PCI"; break;
1070         case avm_b1pcmcia: s = "B1 PCMCIA"; break;
1071         case avm_m1: s = "M1"; break;
1072         case avm_m2: s = "M2"; break;
1073         case avm_t1isa: s = "T1 ISA (HEMA)"; break;
1074         case avm_t1pci: s = "T1 PCI"; break;
1075         case avm_c4: s = "C4"; break;
1076         case avm_c2: s = "C2"; break;
1077         default: s = "???"; break;
1078         }
1079         len += sprintf(page+len, "%-16s %s\n", "type", s);
1080         if ((s = cinfo->version[VER_DRIVER]) != 0)
1081            len += sprintf(page+len, "%-16s %s\n", "ver_driver", s);
1082         if ((s = cinfo->version[VER_CARDTYPE]) != 0)
1083            len += sprintf(page+len, "%-16s %s\n", "ver_cardtype", s);
1084         if ((s = cinfo->version[VER_SERIAL]) != 0)
1085            len += sprintf(page+len, "%-16s %s\n", "ver_serial", s);
1086
1087         if (card->cardtype != avm_m1) {
1088                 flag = ((u8 *)(ctrl->profile.manu))[3];
1089                 if (flag)
1090                         len += sprintf(page+len, "%-16s%s%s%s%s%s%s%s\n",
1091                         "protocol",
1092                         (flag & 0x01) ? " DSS1" : "",
1093                         (flag & 0x02) ? " CT1" : "",
1094                         (flag & 0x04) ? " VN3" : "",
1095                         (flag & 0x08) ? " NI1" : "",
1096                         (flag & 0x10) ? " AUSTEL" : "",
1097                         (flag & 0x20) ? " ESS" : "",
1098                         (flag & 0x40) ? " 1TR6" : ""
1099                         );
1100         }
1101         if (card->cardtype != avm_m1) {
1102                 flag = ((u8 *)(ctrl->profile.manu))[5];
1103                 if (flag)
1104                         len += sprintf(page+len, "%-16s%s%s%s%s\n",
1105                         "linetype",
1106                         (flag & 0x01) ? " point to point" : "",
1107                         (flag & 0x02) ? " point to multipoint" : "",
1108                         (flag & 0x08) ? " leased line without D-channel" : "",
1109                         (flag & 0x04) ? " leased line with D-channel" : ""
1110                         );
1111         }
1112         len += sprintf(page+len, "%-16s %s\n", "cardname", cinfo->cardname);
1113
1114         if (off+count >= len)
1115            *eof = 1;
1116         if (len < off)
1117            return 0;
1118         *start = page + off;
1119         return ((count < len-off) ? count : len-off);
1120 }
1121
1122 /* ------------------------------------------------------------- */
1123
1124 static int c4_add_card(struct capicardparams *p, struct pci_dev *dev,
1125                        int nr_controllers)
1126 {
1127         avmcard *card;
1128         avmctrl_info *cinfo;
1129         int retval;
1130         int i;
1131
1132         card = b1_alloc_card(nr_controllers);
1133         if (!card) {
1134                 printk(KERN_WARNING "c4: no memory.\n");
1135                 retval = -ENOMEM;
1136                 goto err;
1137         }
1138         card->dma = avmcard_dma_alloc("c4", dev, 2048+128, 2048+128);
1139         if (!card->dma) {
1140                 printk(KERN_WARNING "c4: no memory.\n");
1141                 retval = -ENOMEM;
1142                 goto err_free;
1143         }
1144
1145         sprintf(card->name, "c%d-%x", nr_controllers, p->port);
1146         card->port = p->port;
1147         card->irq = p->irq;
1148         card->membase = p->membase;
1149         card->cardtype = (nr_controllers == 4) ? avm_c4 : avm_c2;
1150
1151         if (!request_region(card->port, AVMB1_PORTLEN, card->name)) {
1152                 printk(KERN_WARNING "c4: ports 0x%03x-0x%03x in use.\n",
1153                        card->port, card->port + AVMB1_PORTLEN);
1154                 retval = -EBUSY;
1155                 goto err_free_dma;
1156         }
1157
1158         card->mbase = ioremap(card->membase, 128);
1159         if (card->mbase == 0) {
1160                 printk(KERN_NOTICE "c4: can't remap memory at 0x%lx\n",
1161                        card->membase);
1162                 retval = -EIO;
1163                 goto err_release_region;
1164         }
1165
1166         retval = c4_detect(card);
1167         if (retval != 0) {
1168                 printk(KERN_NOTICE "c4: NO card at 0x%x error(%d)\n",
1169                        card->port, retval);
1170                 retval = -EIO;
1171                 goto err_unmap;
1172         }
1173         c4_reset(card);
1174
1175         retval = request_irq(card->irq, c4_interrupt, IRQF_SHARED, card->name, card);
1176         if (retval) {
1177                 printk(KERN_ERR "c4: unable to get IRQ %d.\n",card->irq);
1178                 retval = -EBUSY;
1179                 goto err_unmap;
1180         }
1181
1182         for (i=0; i < nr_controllers ; i++) {
1183                 cinfo = &card->ctrlinfo[i];
1184                 cinfo->capi_ctrl.owner = THIS_MODULE;
1185                 cinfo->capi_ctrl.driver_name   = "c4";
1186                 cinfo->capi_ctrl.driverdata    = cinfo;
1187                 cinfo->capi_ctrl.register_appl = c4_register_appl;
1188                 cinfo->capi_ctrl.release_appl  = c4_release_appl;
1189                 cinfo->capi_ctrl.send_message  = c4_send_message;
1190                 cinfo->capi_ctrl.load_firmware = c4_load_firmware;
1191                 cinfo->capi_ctrl.reset_ctr     = c4_reset_ctr;
1192                 cinfo->capi_ctrl.procinfo      = c4_procinfo;
1193                 cinfo->capi_ctrl.ctr_read_proc = c4_read_proc;
1194                 strcpy(cinfo->capi_ctrl.name, card->name);
1195
1196                 retval = attach_capi_ctr(&cinfo->capi_ctrl);
1197                 if (retval) {
1198                         printk(KERN_ERR "c4: attach controller failed (%d).\n", i);
1199                         for (i--; i >= 0; i--) {
1200                                 cinfo = &card->ctrlinfo[i];
1201                                 detach_capi_ctr(&cinfo->capi_ctrl);
1202                         }
1203                         goto err_free_irq;
1204                 }
1205                 if (i == 0)
1206                         card->cardnr = cinfo->capi_ctrl.cnr;
1207         }
1208
1209         printk(KERN_INFO "c4: AVM C%d at i/o %#x, irq %d, mem %#lx\n",
1210                nr_controllers, card->port, card->irq,
1211                card->membase);
1212         pci_set_drvdata(dev, card);
1213         return 0;
1214
1215  err_free_irq:
1216         free_irq(card->irq, card);
1217  err_unmap:
1218         iounmap(card->mbase);
1219  err_release_region:
1220         release_region(card->port, AVMB1_PORTLEN);
1221  err_free_dma:
1222         avmcard_dma_free(card->dma);
1223  err_free:
1224         b1_free_card(card);
1225  err:
1226         return retval;
1227 }
1228
1229 /* ------------------------------------------------------------- */
1230
1231 static int __devinit c4_probe(struct pci_dev *dev,
1232                               const struct pci_device_id *ent)
1233 {
1234         int nr = ent->driver_data;
1235         int retval = 0;
1236         struct capicardparams param;
1237
1238         if (pci_enable_device(dev) < 0) {
1239                 printk(KERN_ERR "c4: failed to enable AVM-C%d\n", nr);
1240                 return -ENODEV;
1241         }
1242         pci_set_master(dev);
1243
1244         param.port = pci_resource_start(dev, 1);
1245         param.irq = dev->irq;
1246         param.membase = pci_resource_start(dev, 0);
1247
1248         printk(KERN_INFO "c4: PCI BIOS reports AVM-C%d at i/o %#x, irq %d, mem %#x\n",
1249                nr, param.port, param.irq, param.membase);
1250
1251         retval = c4_add_card(&param, dev, nr);
1252         if (retval != 0) {
1253                 printk(KERN_ERR "c4: no AVM-C%d at i/o %#x, irq %d detected, mem %#x\n",
1254                        nr, param.port, param.irq, param.membase);
1255                 return -ENODEV;
1256         }
1257         return 0;
1258 }
1259
1260 static struct pci_driver c4_pci_driver = {
1261        .name           = "c4",
1262        .id_table       = c4_pci_tbl,
1263        .probe          = c4_probe,
1264        .remove         = c4_remove,
1265 };
1266
1267 static struct capi_driver capi_driver_c2 = {
1268         .name           = "c2",
1269         .revision       = "1.0",
1270 };
1271
1272 static struct capi_driver capi_driver_c4 = {
1273         .name           = "c4",
1274         .revision       = "1.0",
1275 };
1276
1277 static int __init c4_init(void)
1278 {
1279         char *p;
1280         char rev[32];
1281         int err;
1282
1283         if ((p = strchr(revision, ':')) != 0 && p[1]) {
1284                 strlcpy(rev, p + 2, 32);
1285                 if ((p = strchr(rev, '$')) != 0 && p > rev)
1286                    *(p-1) = 0;
1287         } else
1288                 strcpy(rev, "1.0");
1289
1290         err = pci_register_driver(&c4_pci_driver);
1291         if (!err) {
1292                 strlcpy(capi_driver_c2.revision, rev, 32);
1293                 register_capi_driver(&capi_driver_c2);
1294                 strlcpy(capi_driver_c4.revision, rev, 32);
1295                 register_capi_driver(&capi_driver_c4);
1296                 printk(KERN_INFO "c4: revision %s\n", rev);
1297         }
1298         return err;
1299 }
1300
1301 static void __exit c4_exit(void)
1302 {
1303         unregister_capi_driver(&capi_driver_c2);
1304         unregister_capi_driver(&capi_driver_c4);
1305         pci_unregister_driver(&c4_pci_driver);
1306 }
1307
1308 module_init(c4_init);
1309 module_exit(c4_exit);