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/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
  36static char *revision = "$Revision: 1.1.2.2 $";
  37
  38/* ------------------------------------------------------------- */
  39
  40static int suppress_pollack;
  41
  42static 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
  48MODULE_DEVICE_TABLE(pci, c4_pci_tbl);
  49MODULE_DESCRIPTION("CAPI4Linux: Driver for AVM C2/C4 cards");
  50MODULE_AUTHOR("Carsten Paeth");
  51MODULE_LICENSE("GPL");
  52module_param(suppress_pollack, bool, 0);
  53
  54/* ------------------------------------------------------------- */
  55
  56static 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
 143static 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
 156static 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
 174static 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
 192static 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
 236static inline void _put_byte(void **pp, u8 val)
 237{
 238        u8 *s = *pp;
 239        *s++ = val;
 240        *pp = s;
 241}
 242
 243static 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
 253static 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
 261static 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
 270static 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
 282static 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
 293static 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
 313static 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
 407static 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
 477static 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
 500static 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
 663static 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
 719static irqreturn_t c4_interrupt(int interrupt, void *devptr)
 720{
 721        avmcard *card = devptr;
 722
 723        return c4_handle_interrupt(card);
 724}
 725
 726/* ------------------------------------------------------------- */
 727
 728static 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
 755static 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
 781static 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
 811static 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
 852static 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
 896static 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
 917static 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
 944static 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
 989static 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
1025static 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
1049static 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
1065static 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
1135static 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
1242static 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
1271static 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
1278static struct capi_driver capi_driver_c2 = {
1279        .name           = "c2",
1280        .revision       = "1.0",
1281};
1282
1283static struct capi_driver capi_driver_c4 = {
1284        .name           = "c4",
1285        .revision       = "1.0",
1286};
1287
1288static 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
1312static 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
1319module_init(c4_init);
1320module_exit(c4_exit);
1321
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