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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 AVM_C4_DEBUG
  32 #undef AVM_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 AVM_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 AVM_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 AVM_C4_POLLDEBUG
 453                 if (skb->data[2] == SEND_POLLACK)
 454                         printk(KERN_INFO "%s: ack to c4\n", card->name);
 455 #endif
 456 #ifdef AVM_C4_DEBUG
 457                 printk(KERN_DEBUG "%s: tx put 0x%x len=%d\n",
 458                                 card->name, skb->data[2], txlen);
 459 #endif
 460                 skb_copy_from_linear_data_offset(skb, 2, dma->sendbuf.dmabuf,
 461                                                  skb->len - 2);
 462         }
 463         txlen = (txlen + 3) & ~3;
 464
 465         c4outmeml(card->mbase+MBOX_DOWN_ADDR, dma->sendbuf.dmaaddr);
 466         c4outmeml(card->mbase+MBOX_DOWN_LEN, txlen);
 467
 468         card->csr |= DBELL_DOWN_ARM;
 469
 470         c4outmeml(card->mbase+DOORBELL, DBELL_DOWN_ARM);
 471
 472         dev_kfree_skb_any(skb);
 473 }
 474
 475 /* ------------------------------------------------------------- */
 476
 477 static void queue_pollack(avmcard *card)
 478 {
 479         struct sk_buff *skb;
 480         void *p;
 481
 482         skb = alloc_skb(3, GFP_ATOMIC);
 483         if (!skb) {
 484                 printk(KERN_CRIT "%s: no memory, lost poll ack\n",
 485                                         card->name);
 486                 return;
 487         }
 488         p = skb->data;
 489         _put_byte(&p, 0);
 490         _put_byte(&p, 0);
 491         _put_byte(&p, SEND_POLLACK);
 492         skb_put(skb, (u8 *)p - (u8 *)skb->data);
 493
 494         skb_queue_tail(&card->dma->send_queue, skb);
 495         c4_dispatch_tx(card);
 496 }
 497
 498 /* ------------------------------------------------------------- */
 499
 500 static void c4_handle_rx(avmcard *card)
 501 {
 502         avmcard_dmainfo *dma = card->dma;
 503         struct capi_ctr *ctrl;
 504         avmctrl_info *cinfo;
 505         struct sk_buff *skb;
 506         void *p = dma->recvbuf.dmabuf;
 507         u32 ApplId, MsgLen, DataB3Len, NCCI, WindowSize;
 508         u8 b1cmd =  _get_byte(&p);
 509         u32 cidx;
 510
 511
 512 #ifdef AVM_C4_DEBUG
 513         printk(KERN_DEBUG "%s: rx 0x%x len=%lu\n", card->name,
 514                                 b1cmd, (unsigned long)dma->recvlen);
 515 #endif
 516
 517         switch (b1cmd) {
 518         case RECEIVE_DATA_B3_IND:
 519
 520                 ApplId = (unsigned) _get_word(&p);
 521                 MsgLen = _get_slice(&p, card->msgbuf);
 522                 DataB3Len = _get_slice(&p, card->databuf);
 523                 cidx = CAPIMSG_CONTROLLER(card->msgbuf)-card->cardnr;
 524                 if (cidx >= card->nlogcontr) cidx = 0;
 525                 ctrl = &card->ctrlinfo[cidx].capi_ctrl;
 526
 527                 if (MsgLen < 30) { /* not CAPI 64Bit */
 528                         memset(card->msgbuf+MsgLen, 0, 30-MsgLen);
 529                         MsgLen = 30;
 530                         CAPIMSG_SETLEN(card->msgbuf, 30);
 531                 }
 532                 if (!(skb = alloc_skb(DataB3Len+MsgLen, GFP_ATOMIC))) {
 533                         printk(KERN_ERR "%s: incoming packet dropped\n",
 534                                         card->name);
 535                 } else {
 536                         memcpy(skb_put(skb, MsgLen), card->msgbuf, MsgLen);
 537                         memcpy(skb_put(skb, DataB3Len), card->databuf, DataB3Len);
 538                         capi_ctr_handle_message(ctrl, ApplId, skb);
 539                 }
 540                 break;
 541
 542         case RECEIVE_MESSAGE:
 543
 544                 ApplId = (unsigned) _get_word(&p);
 545                 MsgLen = _get_slice(&p, card->msgbuf);
 546                 cidx = CAPIMSG_CONTROLLER(card->msgbuf)-card->cardnr;
 547                 if (cidx >= card->nlogcontr) cidx = 0;
 548                 cinfo = &card->ctrlinfo[cidx];
 549                 ctrl = &card->ctrlinfo[cidx].capi_ctrl;
 550
 551                 if (!(skb = alloc_skb(MsgLen, GFP_ATOMIC))) {
 552                         printk(KERN_ERR "%s: incoming packet dropped\n",
 553                                         card->name);
 554                 } else {
 555                         memcpy(skb_put(skb, MsgLen), card->msgbuf, MsgLen);
 556                         if (CAPIMSG_CMD(skb->data) == CAPI_DATA_B3_CONF)
 557                                 capilib_data_b3_conf(&cinfo->ncci_head, ApplId,
 558                                                      CAPIMSG_NCCI(skb->data),
 559                                                      CAPIMSG_MSGID(skb->data));
 560
 561                         capi_ctr_handle_message(ctrl, ApplId, skb);
 562                 }
 563                 break;
 564
 565         case RECEIVE_NEW_NCCI:
 566
 567                 ApplId = _get_word(&p);
 568                 NCCI = _get_word(&p);
 569                 WindowSize = _get_word(&p);
 570                 cidx = (NCCI&0x7f) - card->cardnr;
 571                 if (cidx >= card->nlogcontr) cidx = 0;
 572
 573                 capilib_new_ncci(&card->ctrlinfo[cidx].ncci_head, ApplId, NCCI, WindowSize);
 574
 575                 break;
 576
 577         case RECEIVE_FREE_NCCI:
 578
 579                 ApplId = _get_word(&p);
 580                 NCCI = _get_word(&p);
 581
 582                 if (NCCI != 0xffffffff) {
 583                         cidx = (NCCI&0x7f) - card->cardnr;
 584                         if (cidx >= card->nlogcontr) cidx = 0;
 585                         capilib_free_ncci(&card->ctrlinfo[cidx].ncci_head, ApplId, NCCI);
 586                 }
 587                 break;
 588
 589         case RECEIVE_START:
 590 #ifdef AVM_C4_POLLDEBUG
 591                 printk(KERN_INFO "%s: poll from c4\n", card->name);
 592 #endif
 593                 if (!suppress_pollack)
 594                         queue_pollack(card);
 595                 for (cidx=0; cidx < card->nr_controllers; cidx++) {
 596                         ctrl = &card->ctrlinfo[cidx].capi_ctrl;
 597                         capi_ctr_resume_output(ctrl);
 598                 }
 599                 break;
 600
 601         case RECEIVE_STOP:
 602                 for (cidx=0; cidx < card->nr_controllers; cidx++) {
 603                         ctrl = &card->ctrlinfo[cidx].capi_ctrl;
 604                         capi_ctr_suspend_output(ctrl);
 605                 }
 606                 break;
 607
 608         case RECEIVE_INIT:
 609
 610                 cidx = card->nlogcontr;
 611                 if (cidx >= card->nr_controllers) {
 612                         printk(KERN_ERR "%s: card with %d controllers ??\n",
 613                                         card->name, cidx+1);
 614                         break;
 615                 }
 616                 card->nlogcontr++;
 617                 cinfo = &card->ctrlinfo[cidx];
 618                 ctrl = &cinfo->capi_ctrl;
 619                 cinfo->versionlen = _get_slice(&p, cinfo->versionbuf);
 620                 b1_parse_version(cinfo);
 621                 printk(KERN_INFO "%s: %s-card (%s) now active\n",
 622                        card->name,
 623                        cinfo->version[VER_CARDTYPE],
 624                        cinfo->version[VER_DRIVER]);
 625                 capi_ctr_ready(&cinfo->capi_ctrl);
 626                 break;
 627
 628         case RECEIVE_TASK_READY:
 629                 ApplId = (unsigned) _get_word(&p);
 630                 MsgLen = _get_slice(&p, card->msgbuf);
 631                 card->msgbuf[MsgLen] = 0;
 632                 while (    MsgLen > 0
 633                        && (   card->msgbuf[MsgLen-1] == '\n'
 634                            || card->msgbuf[MsgLen-1] == '\r')) {
 635                         card->msgbuf[MsgLen-1] = 0;
 636                         MsgLen--;
 637                 }
 638                 printk(KERN_INFO "%s: task %d \"%s\" ready.\n",
 639                                 card->name, ApplId, card->msgbuf);
 640                 break;
 641
 642         case RECEIVE_DEBUGMSG:
 643                 MsgLen = _get_slice(&p, card->msgbuf);
 644                 card->msgbuf[MsgLen] = 0;
 645                 while (    MsgLen > 0
 646                        && (   card->msgbuf[MsgLen-1] == '\n'
 647                            || card->msgbuf[MsgLen-1] == '\r')) {
 648                         card->msgbuf[MsgLen-1] = 0;
 649                         MsgLen--;
 650                 }
 651                 printk(KERN_INFO "%s: DEBUG: %s\n", card->name, card->msgbuf);
 652                 break;
 653
 654         default:
 655                 printk(KERN_ERR "%s: c4_interrupt: 0x%x ???\n",
 656                                 card->name, b1cmd);
 657                 return;
 658         }
 659 }
 660
 661 /* ------------------------------------------------------------- */
 662
 663 static irqreturn_t c4_handle_interrupt(avmcard *card)
 664 {
 665         unsigned long flags;
 666         u32 status;
 667
 668         spin_lock_irqsave(&card->lock, flags);
 669         status = c4inmeml(card->mbase+DOORBELL);
 670
 671         if (status & DBELL_RESET_HOST) {
 672                 u_int i;
 673                 c4outmeml(card->mbase+PCI_OUT_INT_MASK, 0x0c);
 674                 spin_unlock_irqrestore(&card->lock, flags);
 675                 if (card->nlogcontr == 0)
 676                         return IRQ_HANDLED;
 677                 printk(KERN_ERR "%s: unexpected reset\n", card->name);
 678                 for (i=0; i < card->nr_controllers; i++) {
 679                         avmctrl_info *cinfo = &card->ctrlinfo[i];
 680                         memset(cinfo->version, 0, sizeof(cinfo->version));
 681                         spin_lock_irqsave(&card->lock, flags);
 682                         capilib_release(&cinfo->ncci_head);
 683                         spin_unlock_irqrestore(&card->lock, flags);
 684                         capi_ctr_reseted(&cinfo->capi_ctrl);
 685                 }
 686                 card->nlogcontr = 0;
 687                 return IRQ_HANDLED;
 688         }
 689
 690         status &= (DBELL_UP_HOST | DBELL_DOWN_HOST);
 691         if (!status) {
 692                 spin_unlock_irqrestore(&card->lock, flags);
 693                 return IRQ_HANDLED;
 694         }
 695         c4outmeml(card->mbase+DOORBELL, status);
 696
 697         if ((status & DBELL_UP_HOST) != 0) {
 698                 card->dma->recvlen = c4inmeml(card->mbase+MBOX_UP_LEN);
 699                 c4outmeml(card->mbase+MBOX_UP_LEN, 0);
 700                 c4_handle_rx(card);
 701                 card->dma->recvlen = 0;
 702                 c4outmeml(card->mbase+MBOX_UP_LEN, card->dma->recvbuf.size);
 703                 c4outmeml(card->mbase+DOORBELL, DBELL_UP_ARM);
 704         }
 705
 706         if ((status & DBELL_DOWN_HOST) != 0) {
 707                 card->csr &= ~DBELL_DOWN_ARM;
 708                 c4_dispatch_tx(card);
 709         } else if (card->csr & DBELL_DOWN_HOST) {
 710                 if (c4inmeml(card->mbase+MBOX_DOWN_LEN) == 0) {
 711                         card->csr &= ~DBELL_DOWN_ARM;
 712                         c4_dispatch_tx(card);
 713                 }
 714         }
 715         spin_unlock_irqrestore(&card->lock, flags);
 716         return IRQ_HANDLED;
 717 }
 718
 719 static irqreturn_t c4_interrupt(int interrupt, void *devptr)
 720 {
 721         avmcard *card = devptr;
 722
 723         return c4_handle_interrupt(card);
 724 }
 725
 726 /* ------------------------------------------------------------- */
 727
 728 static void c4_send_init(avmcard *card)
 729 {
 730         struct sk_buff *skb;
 731         void *p;
 732         unsigned long flags;
 733
 734         skb = alloc_skb(15, GFP_ATOMIC);
 735         if (!skb) {
 736                 printk(KERN_CRIT "%s: no memory, lost register appl.\n",
 737                                         card->name);
 738                 return;
 739         }
 740         p = skb->data;
 741         _put_byte(&p, 0);
 742         _put_byte(&p, 0);
 743         _put_byte(&p, SEND_INIT);
 744         _put_word(&p, CAPI_MAXAPPL);
 745         _put_word(&p, AVM_NCCI_PER_CHANNEL*30);
 746         _put_word(&p, card->cardnr - 1);
 747         skb_put(skb, (u8 *)p - (u8 *)skb->data);
 748
 749         skb_queue_tail(&card->dma->send_queue, skb);
 750         spin_lock_irqsave(&card->lock, flags);
 751         c4_dispatch_tx(card);
 752         spin_unlock_irqrestore(&card->lock, flags);
 753 }
 754
 755 static int queue_sendconfigword(avmcard *card, u32 val)
 756 {
 757         struct sk_buff *skb;
 758         unsigned long flags;
 759         void *p;
 760
 761         skb = alloc_skb(3+4, GFP_ATOMIC);
 762         if (!skb) {
 763                 printk(KERN_CRIT "%s: no memory, send config\n",
 764                                         card->name);
 765                 return -ENOMEM;
 766         }
 767         p = skb->data;
 768         _put_byte(&p, 0);
 769         _put_byte(&p, 0);
 770         _put_byte(&p, SEND_CONFIG);
 771         _put_word(&p, val);
 772         skb_put(skb, (u8 *)p - (u8 *)skb->data);
 773
 774         skb_queue_tail(&card->dma->send_queue, skb);
 775         spin_lock_irqsave(&card->lock, flags);
 776         c4_dispatch_tx(card);
 777         spin_unlock_irqrestore(&card->lock, flags);
 778         return 0;
 779 }
 780
 781 static int queue_sendconfig(avmcard *card, char cval[4])
 782 {
 783         struct sk_buff *skb;
 784         unsigned long flags;
 785         void *p;
 786
 787         skb = alloc_skb(3+4, GFP_ATOMIC);
 788         if (!skb) {
 789                 printk(KERN_CRIT "%s: no memory, send config\n",
 790                                         card->name);
 791                 return -ENOMEM;
 792         }
 793         p = skb->data;
 794         _put_byte(&p, 0);
 795         _put_byte(&p, 0);
 796         _put_byte(&p, SEND_CONFIG);
 797         _put_byte(&p, cval[0]);
 798         _put_byte(&p, cval[1]);
 799         _put_byte(&p, cval[2]);
 800         _put_byte(&p, cval[3]);
 801         skb_put(skb, (u8 *)p - (u8 *)skb->data);
 802
 803         skb_queue_tail(&card->dma->send_queue, skb);
 804
 805         spin_lock_irqsave(&card->lock, flags);
 806         c4_dispatch_tx(card);
 807         spin_unlock_irqrestore(&card->lock, flags);
 808         return 0;
 809 }
 810
 811 static int c4_send_config(avmcard *card, capiloaddatapart * config)
 812 {
 813         u8 val[4];
 814         unsigned char *dp;
 815         u_int left;
 816         int retval;
 817
 818         if ((retval = queue_sendconfigword(card, 1)) != 0)
 819                 return retval;
 820         if ((retval = queue_sendconfigword(card, config->len)) != 0)
 821                 return retval;
 822
 823         dp = config->data;
 824         left = config->len;
 825         while (left >= sizeof(u32)) {
 826                 if (config->user) {
 827                         if (copy_from_user(val, dp, sizeof(val)))
 828                                 return -EFAULT;
 829                 } else {
 830                         memcpy(val, dp, sizeof(val));
 831                 }
 832                 if ((retval = queue_sendconfig(card, val)) != 0)
 833                         return retval;
 834                 left -= sizeof(val);
 835                 dp += sizeof(val);
 836         }
 837         if (left) {
 838                 memset(val, 0, sizeof(val));
 839                 if (config->user) {
 840                         if (copy_from_user(&val, dp, left))
 841                                 return -EFAULT;
 842                 } else {
 843                         memcpy(&val, dp, left);
 844                 }
 845                 if ((retval = queue_sendconfig(card, val)) != 0)
 846                         return retval;
 847         }
 848
 849         return 0;
 850 }
 851
 852 static int c4_load_firmware(struct capi_ctr *ctrl, capiloaddata *data)
 853 {
 854         avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
 855         avmcard *card = cinfo->card;
 856         int retval;
 857
 858         if ((retval = c4_load_t4file(card, &data->firmware))) {
 859                 printk(KERN_ERR "%s: failed to load t4file!!\n",
 860                                         card->name);
 861                 c4_reset(card);
 862                 return retval;
 863         }
 864
 865         card->csr = 0;
 866         c4outmeml(card->mbase+MBOX_UP_LEN, 0);
 867         c4outmeml(card->mbase+MBOX_DOWN_LEN, 0);
 868         c4outmeml(card->mbase+DOORBELL, DBELL_INIT);
 869         mdelay(1);
 870         c4outmeml(card->mbase+DOORBELL,
 871                         DBELL_UP_HOST | DBELL_DOWN_HOST | DBELL_RESET_HOST);
 872
 873         c4outmeml(card->mbase+PCI_OUT_INT_MASK, 0x08);
 874
 875         card->dma->recvlen = 0;
 876         c4outmeml(card->mbase+MBOX_UP_ADDR, card->dma->recvbuf.dmaaddr);
 877         c4outmeml(card->mbase+MBOX_UP_LEN, card->dma->recvbuf.size);
 878         c4outmeml(card->mbase+DOORBELL, DBELL_UP_ARM);
 879
 880         if (data->configuration.len > 0 && data->configuration.data) {
 881                 retval = c4_send_config(card, &data->configuration);
 882                 if (retval) {
 883                         printk(KERN_ERR "%s: failed to set config!!\n",
 884                                         card->name);
 885                         c4_reset(card);
 886                         return retval;
 887                 }
 888         }
 889
 890         c4_send_init(card);
 891
 892         return 0;
 893 }
 894
 895
 896 static void c4_reset_ctr(struct capi_ctr *ctrl)
 897 {
 898         avmcard *card = ((avmctrl_info *)(ctrl->driverdata))->card;
 899         avmctrl_info *cinfo;
 900         u_int i;
 901         unsigned long flags;
 902
 903         spin_lock_irqsave(&card->lock, flags);
 904
 905         c4_reset(card);
 906
 907         spin_unlock_irqrestore(&card->lock, flags);
 908
 909         for (i=0; i < card->nr_controllers; i++) {
 910                 cinfo = &card->ctrlinfo[i];
 911                 memset(cinfo->version, 0, sizeof(cinfo->version));
 912                 capi_ctr_reseted(&cinfo->capi_ctrl);
 913         }
 914         card->nlogcontr = 0;
 915 }
 916
 917 static void c4_remove(struct pci_dev *pdev)
 918 {
 919         avmcard *card = pci_get_drvdata(pdev);
 920         avmctrl_info *cinfo;
 921         u_int i;
 922
 923         if (!card)
 924                 return;
 925
 926         c4_reset(card);
 927
 928         for (i=0; i < card->nr_controllers; i++) {
 929                 cinfo = &card->ctrlinfo[i];
 930                 detach_capi_ctr(&cinfo->capi_ctrl);
 931         }
 932
 933         free_irq(card->irq, card);
 934         iounmap(card->mbase);
 935         release_region(card->port, AVMB1_PORTLEN);
 936         avmcard_dma_free(card->dma);
 937         pci_set_drvdata(pdev, NULL);
 938         b1_free_card(card);
 939 }
 940
 941 /* ------------------------------------------------------------- */
 942
 943
 944 static void c4_register_appl(struct capi_ctr *ctrl,
 945                                 u16 appl,
 946                                 capi_register_params *rp)
 947 {
 948         avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
 949         avmcard *card = cinfo->card;
 950         struct sk_buff *skb;
 951         int want = rp->level3cnt;
 952         unsigned long flags;
 953         int nconn;
 954         void *p;
 955
 956         if (ctrl->cnr == card->cardnr) {
 957
 958                 if (want > 0) nconn = want;
 959                 else nconn = ctrl->profile.nbchannel * 4 * -want;
 960                 if (nconn == 0) nconn = ctrl->profile.nbchannel * 4;
 961
 962                 skb = alloc_skb(23, GFP_ATOMIC);
 963                 if (!skb) {
 964                         printk(KERN_CRIT "%s: no memory, lost register appl.\n",
 965                                                 card->name);
 966                         return;
 967                 }
 968                 p = skb->data;
 969                 _put_byte(&p, 0);
 970                 _put_byte(&p, 0);
 971                 _put_byte(&p, SEND_REGISTER);
 972                 _put_word(&p, appl);
 973                 _put_word(&p, 1024 * (nconn+1));
 974                 _put_word(&p, nconn);
 975                 _put_word(&p, rp->datablkcnt);
 976                 _put_word(&p, rp->datablklen);
 977                 skb_put(skb, (u8 *)p - (u8 *)skb->data);
 978
 979                 skb_queue_tail(&card->dma->send_queue, skb);
 980
 981                 spin_lock_irqsave(&card->lock, flags);
 982                 c4_dispatch_tx(card);
 983                 spin_unlock_irqrestore(&card->lock, flags);
 984         }
 985 }
 986
 987 /* ------------------------------------------------------------- */
 988
 989 static void c4_release_appl(struct capi_ctr *ctrl, u16 appl)
 990 {
 991         avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
 992         avmcard *card = cinfo->card;
 993         unsigned long flags;
 994         struct sk_buff *skb;
 995         void *p;
 996
 997         spin_lock_irqsave(&card->lock, flags);
 998         capilib_release_appl(&cinfo->ncci_head, appl);
 999         spin_unlock_irqrestore(&card->lock, flags);
1000
1001         if (ctrl->cnr == card->cardnr) {
1002                 skb = alloc_skb(7, GFP_ATOMIC);
1003                 if (!skb) {
1004                         printk(KERN_CRIT "%s: no memory, lost release appl.\n",
1005                                                 card->name);
1006                         return;
1007                 }
1008                 p = skb->data;
1009                 _put_byte(&p, 0);
1010                 _put_byte(&p, 0);
1011                 _put_byte(&p, SEND_RELEASE);
1012                 _put_word(&p, appl);
1013
1014                 skb_put(skb, (u8 *)p - (u8 *)skb->data);
1015                 skb_queue_tail(&card->dma->send_queue, skb);
1016                 spin_lock_irqsave(&card->lock, flags);
1017                 c4_dispatch_tx(card);
1018                 spin_unlock_irqrestore(&card->lock, flags);
1019         }
1020 }
1021
1022 /* ------------------------------------------------------------- */
1023
1024
1025 static u16 c4_send_message(struct capi_ctr *ctrl, struct sk_buff *skb)
1026 {
1027         avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
1028         avmcard *card = cinfo->card;
1029         u16 retval = CAPI_NOERROR;
1030         unsigned long flags;
1031
1032         spin_lock_irqsave(&card->lock, flags);
1033         if (CAPIMSG_CMD(skb->data) == CAPI_DATA_B3_REQ) {
1034                 retval = capilib_data_b3_req(&cinfo->ncci_head,
1035                                              CAPIMSG_APPID(skb->data),
1036                                              CAPIMSG_NCCI(skb->data),
1037                                              CAPIMSG_MSGID(skb->data));
1038         }
1039         if (retval == CAPI_NOERROR) {
1040                 skb_queue_tail(&card->dma->send_queue, skb);
1041                 c4_dispatch_tx(card);
1042         }
1043         spin_unlock_irqrestore(&card->lock, flags);
1044         return retval;
1045 }
1046
1047 /* ------------------------------------------------------------- */
1048
1049 static char *c4_procinfo(struct capi_ctr *ctrl)
1050 {
1051         avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
1052
1053         if (!cinfo)
1054                 return "";
1055         sprintf(cinfo->infobuf, "%s %s 0x%x %d 0x%lx",
1056                 cinfo->cardname[0] ? cinfo->cardname : "-",
1057                 cinfo->version[VER_DRIVER] ? cinfo->version[VER_DRIVER] : "-",
1058                 cinfo->card ? cinfo->card->port : 0x0,
1059                 cinfo->card ? cinfo->card->irq : 0,
1060                 cinfo->card ? cinfo->card->membase : 0
1061                 );
1062         return cinfo->infobuf;
1063 }
1064
1065 static int c4_read_proc(char *page, char **start, off_t off,
1066                         int count, int *eof, struct capi_ctr *ctrl)
1067 {
1068         avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
1069         avmcard *card = cinfo->card;
1070         u8 flag;
1071         int len = 0;
1072         char *s;
1073
1074         len += sprintf(page+len, "%-16s %s\n", "name", card->name);
1075         len += sprintf(page+len, "%-16s 0x%x\n", "io", card->port);
1076         len += sprintf(page+len, "%-16s %d\n", "irq", card->irq);
1077         len += sprintf(page+len, "%-16s 0x%lx\n", "membase", card->membase);
1078         switch (card->cardtype) {
1079         case avm_b1isa: s = "B1 ISA"; break;
1080         case avm_b1pci: s = "B1 PCI"; break;
1081         case avm_b1pcmcia: s = "B1 PCMCIA"; break;
1082         case avm_m1: s = "M1"; break;
1083         case avm_m2: s = "M2"; break;
1084         case avm_t1isa: s = "T1 ISA (HEMA)"; break;
1085         case avm_t1pci: s = "T1 PCI"; break;
1086         case avm_c4: s = "C4"; break;
1087         case avm_c2: s = "C2"; break;
1088         default: s = "???"; break;
1089         }
1090         len += sprintf(page+len, "%-16s %s\n", "type", s);
1091         if ((s = cinfo->version[VER_DRIVER]) != NULL)
1092            len += sprintf(page+len, "%-16s %s\n", "ver_driver", s);
1093         if ((s = cinfo->version[VER_CARDTYPE]) != NULL)
1094            len += sprintf(page+len, "%-16s %s\n", "ver_cardtype", s);
1095         if ((s = cinfo->version[VER_SERIAL]) != NULL)
1096            len += sprintf(page+len, "%-16s %s\n", "ver_serial", s);
1097
1098         if (card->cardtype != avm_m1) {
1099                 flag = ((u8 *)(ctrl->profile.manu))[3];
1100                 if (flag)
1101                         len += sprintf(page+len, "%-16s%s%s%s%s%s%s%s\n",
1102                         "protocol",
1103                         (flag & 0x01) ? " DSS1" : "",
1104                         (flag & 0x02) ? " CT1" : "",
1105                         (flag & 0x04) ? " VN3" : "",
1106                         (flag & 0x08) ? " NI1" : "",
1107                         (flag & 0x10) ? " AUSTEL" : "",
1108                         (flag & 0x20) ? " ESS" : "",
1109                         (flag & 0x40) ? " 1TR6" : ""
1110                         );
1111         }
1112         if (card->cardtype != avm_m1) {
1113                 flag = ((u8 *)(ctrl->profile.manu))[5];
1114                 if (flag)
1115                         len += sprintf(page+len, "%-16s%s%s%s%s\n",
1116                         "linetype",
1117                         (flag & 0x01) ? " point to point" : "",
1118                         (flag & 0x02) ? " point to multipoint" : "",
1119                         (flag & 0x08) ? " leased line without D-channel" : "",
1120                         (flag & 0x04) ? " leased line with D-channel" : ""
1121                         );
1122         }
1123         len += sprintf(page+len, "%-16s %s\n", "cardname", cinfo->cardname);
1124
1125         if (off+count >= len)
1126            *eof = 1;
1127         if (len < off)
1128            return 0;
1129         *start = page + off;
1130         return ((count < len-off) ? count : len-off);
1131 }
1132
1133 /* ------------------------------------------------------------- */
1134
1135 static int c4_add_card(struct capicardparams *p, struct pci_dev *dev,
1136                        int nr_controllers)
1137 {
1138         avmcard *card;
1139         avmctrl_info *cinfo;
1140         int retval;
1141         int i;
1142
1143         card = b1_alloc_card(nr_controllers);
1144         if (!card) {
1145                 printk(KERN_WARNING "c4: no memory.\n");
1146                 retval = -ENOMEM;
1147                 goto err;
1148         }
1149         card->dma = avmcard_dma_alloc("c4", dev, 2048+128, 2048+128);
1150         if (!card->dma) {
1151                 printk(KERN_WARNING "c4: no memory.\n");
1152                 retval = -ENOMEM;
1153                 goto err_free;
1154         }
1155
1156         sprintf(card->name, "c%d-%x", nr_controllers, p->port);
1157         card->port = p->port;
1158         card->irq = p->irq;
1159         card->membase = p->membase;
1160         card->cardtype = (nr_controllers == 4) ? avm_c4 : avm_c2;
1161
1162         if (!request_region(card->port, AVMB1_PORTLEN, card->name)) {
1163                 printk(KERN_WARNING "c4: ports 0x%03x-0x%03x in use.\n",
1164                        card->port, card->port + AVMB1_PORTLEN);
1165                 retval = -EBUSY;
1166                 goto err_free_dma;
1167         }
1168
1169         card->mbase = ioremap(card->membase, 128);
1170         if (card->mbase == NULL) {
1171                 printk(KERN_NOTICE "c4: can't remap memory at 0x%lx\n",
1172                        card->membase);
1173                 retval = -EIO;
1174                 goto err_release_region;
1175         }
1176
1177         retval = c4_detect(card);
1178         if (retval != 0) {
1179                 printk(KERN_NOTICE "c4: NO card at 0x%x error(%d)\n",
1180                        card->port, retval);
1181                 retval = -EIO;
1182                 goto err_unmap;
1183         }
1184         c4_reset(card);
1185
1186         retval = request_irq(card->irq, c4_interrupt, IRQF_SHARED, card->name, card);
1187         if (retval) {
1188                 printk(KERN_ERR "c4: unable to get IRQ %d.\n",card->irq);
1189                 retval = -EBUSY;
1190                 goto err_unmap;
1191         }
1192
1193         for (i=0; i < nr_controllers ; i++) {
1194                 cinfo = &card->ctrlinfo[i];
1195                 cinfo->capi_ctrl.owner = THIS_MODULE;
1196                 cinfo->capi_ctrl.driver_name   = "c4";
1197                 cinfo->capi_ctrl.driverdata    = cinfo;
1198                 cinfo->capi_ctrl.register_appl = c4_register_appl;
1199                 cinfo->capi_ctrl.release_appl  = c4_release_appl;
1200                 cinfo->capi_ctrl.send_message  = c4_send_message;
1201                 cinfo->capi_ctrl.load_firmware = c4_load_firmware;
1202                 cinfo->capi_ctrl.reset_ctr     = c4_reset_ctr;
1203                 cinfo->capi_ctrl.procinfo      = c4_procinfo;
1204                 cinfo->capi_ctrl.ctr_read_proc = c4_read_proc;
1205                 strcpy(cinfo->capi_ctrl.name, card->name);
1206
1207                 retval = attach_capi_ctr(&cinfo->capi_ctrl);
1208                 if (retval) {
1209                         printk(KERN_ERR "c4: attach controller failed (%d).\n", i);
1210                         for (i--; i >= 0; i--) {
1211                                 cinfo = &card->ctrlinfo[i];
1212                                 detach_capi_ctr(&cinfo->capi_ctrl);
1213                         }
1214                         goto err_free_irq;
1215                 }
1216                 if (i == 0)
1217                         card->cardnr = cinfo->capi_ctrl.cnr;
1218         }
1219
1220         printk(KERN_INFO "c4: AVM C%d at i/o %#x, irq %d, mem %#lx\n",
1221                nr_controllers, card->port, card->irq,
1222                card->membase);
1223         pci_set_drvdata(dev, card);
1224         return 0;
1225
1226  err_free_irq:
1227         free_irq(card->irq, card);
1228  err_unmap:
1229         iounmap(card->mbase);
1230  err_release_region:
1231         release_region(card->port, AVMB1_PORTLEN);
1232  err_free_dma:
1233         avmcard_dma_free(card->dma);
1234  err_free:
1235         b1_free_card(card);
1236  err:
1237         return retval;
1238 }
1239
1240 /* ------------------------------------------------------------- */
1241
1242 static int __devinit c4_probe(struct pci_dev *dev,
1243                               const struct pci_device_id *ent)
1244 {
1245         int nr = ent->driver_data;
1246         int retval = 0;
1247         struct capicardparams param;
1248
1249         if (pci_enable_device(dev) < 0) {
1250                 printk(KERN_ERR "c4: failed to enable AVM-C%d\n", nr);
1251                 return -ENODEV;
1252         }
1253         pci_set_master(dev);
1254
1255         param.port = pci_resource_start(dev, 1);
1256         param.irq = dev->irq;
1257         param.membase = pci_resource_start(dev, 0);
1258
1259         printk(KERN_INFO "c4: PCI BIOS reports AVM-C%d at i/o %#x, irq %d, mem %#x\n",
1260                nr, param.port, param.irq, param.membase);
1261
1262         retval = c4_add_card(&param, dev, nr);
1263         if (retval != 0) {
1264                 printk(KERN_ERR "c4: no AVM-C%d at i/o %#x, irq %d detected, mem %#x\n",
1265                        nr, param.port, param.irq, param.membase);
1266                 return -ENODEV;
1267         }
1268         return 0;
1269 }
1270
1271 static struct pci_driver c4_pci_driver = {
1272        .name           = "c4",
1273        .id_table       = c4_pci_tbl,
1274        .probe          = c4_probe,
1275        .remove         = c4_remove,
1276 };
1277
1278 static struct capi_driver capi_driver_c2 = {
1279         .name           = "c2",
1280         .revision       = "1.0",
1281 };
1282
1283 static struct capi_driver capi_driver_c4 = {
1284         .name           = "c4",
1285         .revision       = "1.0",
1286 };
1287
1288 static int __init c4_init(void)
1289 {
1290         char *p;
1291         char rev[32];
1292         int err;
1293
1294         if ((p = strchr(revision, ':')) != NULL && p[1]) {
1295                 strlcpy(rev, p + 2, 32);
1296                 if ((p = strchr(rev, '$')) != NULL && p > rev)
1297                    *(p-1) = 0;
1298         } else
1299                 strcpy(rev, "1.0");
1300
1301         err = pci_register_driver(&c4_pci_driver);
1302         if (!err) {
1303                 strlcpy(capi_driver_c2.revision, rev, 32);
1304                 register_capi_driver(&capi_driver_c2);
1305                 strlcpy(capi_driver_c4.revision, rev, 32);
1306                 register_capi_driver(&capi_driver_c4);
1307                 printk(KERN_INFO "c4: revision %s\n", rev);
1308         }
1309         return err;
1310 }
1311
1312 static void __exit c4_exit(void)
1313 {
1314         unregister_capi_driver(&capi_driver_c2);
1315         unregister_capi_driver(&capi_driver_c4);
1316         pci_unregister_driver(&c4_pci_driver);
1317 }
1318
1319 module_init(c4_init);
1320 module_exit(c4_exit);