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