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