drivers/isdn/hardware/mISDN/hfcpci.c

   1 /*
   2  *
   3  * hfcpci.c     low level driver for CCD's hfc-pci based cards
   4  *
   5  * Author     Werner Cornelius (werner@isdn4linux.de)
   6  *            based on existing driver for CCD hfc ISA cards
   7  *            type approval valid for HFC-S PCI A based card
   8  *
   9  * Copyright 1999  by Werner Cornelius (werner@isdn-development.de)
  10  * Copyright 2008  by Karsten Keil <kkeil@novell.com>
  11  *
  12  * This program is free software; you can redistribute it and/or modify
  13  * it under the terms of the GNU General Public License as published by
  14  * the Free Software Foundation; either version 2, or (at your option)
  15  * any later version.
  16  *
  17  * This program is distributed in the hope that it will be useful,
  18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  * GNU General Public License for more details.
  21  *
  22  * You should have received a copy of the GNU General Public License
  23  * along with this program; if not, write to the Free Software
  24  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  25  *
  26  */
  27
  28 #include <linux/module.h>
  29 #include <linux/pci.h>
  30 #include <linux/delay.h>
  31 #include <linux/mISDNhw.h>
  32
  33 #include "hfc_pci.h"
  34
  35 static const char *hfcpci_revision = "2.0";
  36
  37 #define MAX_CARDS       8
  38 static int HFC_cnt;
  39 static uint debug;
  40
  41 MODULE_AUTHOR("Karsten Keil");
  42 MODULE_LICENSE("GPL");
  43 module_param(debug, uint, 0);
  44
  45 static LIST_HEAD(HFClist);
  46 DEFINE_RWLOCK(HFClock);
  47
  48 enum {
  49         HFC_CCD_2BD0,
  50         HFC_CCD_B000,
  51         HFC_CCD_B006,
  52         HFC_CCD_B007,
  53         HFC_CCD_B008,
  54         HFC_CCD_B009,
  55         HFC_CCD_B00A,
  56         HFC_CCD_B00B,
  57         HFC_CCD_B00C,
  58         HFC_CCD_B100,
  59         HFC_CCD_B700,
  60         HFC_CCD_B701,
  61         HFC_ASUS_0675,
  62         HFC_BERKOM_A1T,
  63         HFC_BERKOM_TCONCEPT,
  64         HFC_ANIGMA_MC145575,
  65         HFC_ZOLTRIX_2BD0,
  66         HFC_DIGI_DF_M_IOM2_E,
  67         HFC_DIGI_DF_M_E,
  68         HFC_DIGI_DF_M_IOM2_A,
  69         HFC_DIGI_DF_M_A,
  70         HFC_ABOCOM_2BD1,
  71         HFC_SITECOM_DC105V2,
  72 };
  73
  74 struct hfcPCI_hw {
  75         unsigned char           cirm;
  76         unsigned char           ctmt;
  77         unsigned char           clkdel;
  78         unsigned char           states;
  79         unsigned char           conn;
  80         unsigned char           mst_m;
  81         unsigned char           int_m1;
  82         unsigned char           int_m2;
  83         unsigned char           sctrl;
  84         unsigned char           sctrl_r;
  85         unsigned char           sctrl_e;
  86         unsigned char           trm;
  87         unsigned char           fifo_en;
  88         unsigned char           bswapped;
  89         unsigned char           protocol;
  90         int                     nt_timer;
  91         unsigned char           *pci_io; /* start of PCI IO memory */
  92         dma_addr_t              dmahandle;
  93         void                    *fifos; /* FIFO memory */
  94         int                     last_bfifo_cnt[2];
  95             /* marker saving last b-fifo frame count */
  96         struct timer_list       timer;
  97 };
  98
  99 #define HFC_CFG_MASTER          1
 100 #define HFC_CFG_SLAVE           2
 101 #define HFC_CFG_PCM             3
 102 #define HFC_CFG_2HFC            4
 103 #define HFC_CFG_SLAVEHFC        5
 104 #define HFC_CFG_NEG_F0          6
 105 #define HFC_CFG_SW_DD_DU        7
 106
 107 #define FLG_HFC_TIMER_T1        16
 108 #define FLG_HFC_TIMER_T3        17
 109
 110 #define NT_T1_COUNT     1120    /* number of 3.125ms interrupts (3.5s) */
 111 #define NT_T3_COUNT     31      /* number of 3.125ms interrupts (97 ms) */
 112 #define CLKDEL_TE       0x0e    /* CLKDEL in TE mode */
 113 #define CLKDEL_NT       0x6c    /* CLKDEL in NT mode */
 114
 115
 116 struct hfc_pci {
 117         struct list_head        list;
 118         u_char                  subtype;
 119         u_char                  chanlimit;
 120         u_char                  initdone;
 121         u_long                  cfg;
 122         u_int                   irq;
 123         u_int                   irqcnt;
 124         struct pci_dev          *pdev;
 125         struct hfcPCI_hw        hw;
 126         spinlock_t              lock;   /* card lock */
 127         struct dchannel         dch;
 128         struct bchannel         bch[2];
 129 };
 130
 131 /* Interface functions */
 132 static void
 133 enable_hwirq(struct hfc_pci *hc)
 134 {
 135         hc->hw.int_m2 |= HFCPCI_IRQ_ENABLE;
 136         Write_hfc(hc, HFCPCI_INT_M2, hc->hw.int_m2);
 137 }
 138
 139 static void
 140 disable_hwirq(struct hfc_pci *hc)
 141 {
 142         hc->hw.int_m2 &= ~((u_char)HFCPCI_IRQ_ENABLE);
 143         Write_hfc(hc, HFCPCI_INT_M2, hc->hw.int_m2);
 144 }
 145
 146 /*
 147  * free hardware resources used by driver
 148  */
 149 static void
 150 release_io_hfcpci(struct hfc_pci *hc)
 151 {
 152         /* disable memory mapped ports + busmaster */
 153         pci_write_config_word(hc->pdev, PCI_COMMAND, 0);
 154         del_timer(&hc->hw.timer);
 155         pci_free_consistent(hc->pdev, 0x8000, hc->hw.fifos, hc->hw.dmahandle);
 156         iounmap((void *)hc->hw.pci_io);
 157 }
 158
 159 /*
 160  * set mode (NT or TE)
 161  */
 162 static void
 163 hfcpci_setmode(struct hfc_pci *hc)
 164 {
 165         if (hc->hw.protocol == ISDN_P_NT_S0) {
 166                 hc->hw.clkdel = CLKDEL_NT;      /* ST-Bit delay for NT-Mode */
 167                 hc->hw.sctrl |= SCTRL_MODE_NT;  /* NT-MODE */
 168                 hc->hw.states = 1;              /* G1 */
 169         } else {
 170                 hc->hw.clkdel = CLKDEL_TE;      /* ST-Bit delay for TE-Mode */
 171                 hc->hw.sctrl &= ~SCTRL_MODE_NT; /* TE-MODE */
 172                 hc->hw.states = 2;              /* F2 */
 173         }
 174         Write_hfc(hc, HFCPCI_CLKDEL, hc->hw.clkdel);
 175         Write_hfc(hc, HFCPCI_STATES, HFCPCI_LOAD_STATE | hc->hw.states);
 176         udelay(10);
 177         Write_hfc(hc, HFCPCI_STATES, hc->hw.states | 0x40); /* Deactivate */
 178         Write_hfc(hc, HFCPCI_SCTRL, hc->hw.sctrl);
 179 }
 180
 181 /*
 182  * function called to reset the HFC PCI chip. A complete software reset of chip
 183  * and fifos is done.
 184  */
 185 static void
 186 reset_hfcpci(struct hfc_pci *hc)
 187 {
 188         u_char  val;
 189         int     cnt = 0;
 190
 191         printk(KERN_DEBUG "reset_hfcpci: entered\n");
 192         val = Read_hfc(hc, HFCPCI_CHIP_ID);
 193         printk(KERN_INFO "HFC_PCI: resetting HFC ChipId(%x)\n", val);
 194         /* enable memory mapped ports, disable busmaster */
 195         pci_write_config_word(hc->pdev, PCI_COMMAND, PCI_ENA_MEMIO);
 196         disable_hwirq(hc);
 197         /* enable memory ports + busmaster */
 198         pci_write_config_word(hc->pdev, PCI_COMMAND,
 199             PCI_ENA_MEMIO + PCI_ENA_MASTER);
 200         val = Read_hfc(hc, HFCPCI_STATUS);
 201         printk(KERN_DEBUG "HFC-PCI status(%x) before reset\n", val);
 202         hc->hw.cirm = HFCPCI_RESET;     /* Reset On */
 203         Write_hfc(hc, HFCPCI_CIRM, hc->hw.cirm);
 204         set_current_state(TASK_UNINTERRUPTIBLE);
 205         mdelay(10);                     /* Timeout 10ms */
 206         hc->hw.cirm = 0;                /* Reset Off */
 207         Write_hfc(hc, HFCPCI_CIRM, hc->hw.cirm);
 208         val = Read_hfc(hc, HFCPCI_STATUS);
 209         printk(KERN_DEBUG "HFC-PCI status(%x) after reset\n", val);
 210         while (cnt < 50000) { /* max 50000 us */
 211                 udelay(5);
 212                 cnt += 5;
 213                 val = Read_hfc(hc, HFCPCI_STATUS);
 214                 if (!(val & 2))
 215                         break;
 216         }
 217         printk(KERN_DEBUG "HFC-PCI status(%x) after %dus\n", val, cnt);
 218
 219         hc->hw.fifo_en = 0x30;  /* only D fifos enabled */
 220
 221         hc->hw.bswapped = 0;    /* no exchange */
 222         hc->hw.ctmt = HFCPCI_TIM3_125 | HFCPCI_AUTO_TIMER;
 223         hc->hw.trm = HFCPCI_BTRANS_THRESMASK; /* no echo connect , threshold */
 224         hc->hw.sctrl = 0x40;    /* set tx_lo mode, error in datasheet ! */
 225         hc->hw.sctrl_r = 0;
 226         hc->hw.sctrl_e = HFCPCI_AUTO_AWAKE;     /* S/T Auto awake */
 227         hc->hw.mst_m = 0;
 228         if (test_bit(HFC_CFG_MASTER, &hc->cfg))
 229                 hc->hw.mst_m |= HFCPCI_MASTER;  /* HFC Master Mode */
 230         if (test_bit(HFC_CFG_NEG_F0, &hc->cfg))
 231                 hc->hw.mst_m |= HFCPCI_F0_NEGATIV;
 232         Write_hfc(hc, HFCPCI_FIFO_EN, hc->hw.fifo_en);
 233         Write_hfc(hc, HFCPCI_TRM, hc->hw.trm);
 234         Write_hfc(hc, HFCPCI_SCTRL_E, hc->hw.sctrl_e);
 235         Write_hfc(hc, HFCPCI_CTMT, hc->hw.ctmt);
 236
 237         hc->hw.int_m1 = HFCPCI_INTS_DTRANS | HFCPCI_INTS_DREC |
 238             HFCPCI_INTS_L1STATE | HFCPCI_INTS_TIMER;
 239         Write_hfc(hc, HFCPCI_INT_M1, hc->hw.int_m1);
 240
 241         /* Clear already pending ints */
 242         if (Read_hfc(hc, HFCPCI_INT_S1));
 243
 244         /* set NT/TE mode */
 245         hfcpci_setmode(hc);
 246
 247         Write_hfc(hc, HFCPCI_MST_MODE, hc->hw.mst_m);
 248         Write_hfc(hc, HFCPCI_SCTRL_R, hc->hw.sctrl_r);
 249
 250         /*
 251          * Init GCI/IOM2 in master mode
 252          * Slots 0 and 1 are set for B-chan 1 and 2
 253          * D- and monitor/CI channel are not enabled
 254          * STIO1 is used as output for data, B1+B2 from ST->IOM+HFC
 255          * STIO2 is used as data input, B1+B2 from IOM->ST
 256          * ST B-channel send disabled -> continous 1s
 257          * The IOM slots are always enabled
 258          */
 259         if (test_bit(HFC_CFG_PCM, &hc->cfg)) {
 260                 /* set data flow directions: connect B1,B2: HFC to/from PCM */
 261                 hc->hw.conn = 0x09;
 262         } else {
 263                 hc->hw.conn = 0x36;     /* set data flow directions */
 264                 if (test_bit(HFC_CFG_SW_DD_DU, &hc->cfg)) {
 265                         Write_hfc(hc, HFCPCI_B1_SSL, 0xC0);
 266                         Write_hfc(hc, HFCPCI_B2_SSL, 0xC1);
 267                         Write_hfc(hc, HFCPCI_B1_RSL, 0xC0);
 268                         Write_hfc(hc, HFCPCI_B2_RSL, 0xC1);
 269                 } else {
 270                         Write_hfc(hc, HFCPCI_B1_SSL, 0x80);
 271                         Write_hfc(hc, HFCPCI_B2_SSL, 0x81);
 272                         Write_hfc(hc, HFCPCI_B1_RSL, 0x80);
 273                         Write_hfc(hc, HFCPCI_B2_RSL, 0x81);
 274                 }
 275         }
 276         Write_hfc(hc, HFCPCI_CONNECT, hc->hw.conn);
 277         val = Read_hfc(hc, HFCPCI_INT_S2);
 278 }
 279
 280 /*
 281  * Timer function called when kernel timer expires
 282  */
 283 static void
 284 hfcpci_Timer(struct hfc_pci *hc)
 285 {
 286         hc->hw.timer.expires = jiffies + 75;
 287         /* WD RESET */
 288 /*
 289  *      WriteReg(hc, HFCD_DATA, HFCD_CTMT, hc->hw.ctmt | 0x80);
 290  *      add_timer(&hc->hw.timer);
 291  */
 292 }
 293
 294
 295 /*
 296  * select a b-channel entry matching and active
 297  */
 298 static struct bchannel *
 299 Sel_BCS(struct hfc_pci *hc, int channel)
 300 {
 301         if (test_bit(FLG_ACTIVE, &hc->bch[0].Flags) &&
 302                 (hc->bch[0].nr & channel))
 303                 return &hc->bch[0];
 304         else if (test_bit(FLG_ACTIVE, &hc->bch[1].Flags) &&
 305                 (hc->bch[1].nr & channel))
 306                 return &hc->bch[1];
 307         else
 308                 return NULL;
 309 }
 310
 311 /*
 312  * clear the desired B-channel rx fifo
 313  */
 314 static void
 315 hfcpci_clear_fifo_rx(struct hfc_pci *hc, int fifo)
 316 {
 317         u_char          fifo_state;
 318         struct bzfifo   *bzr;
 319
 320         if (fifo) {
 321                 bzr = &((union fifo_area *)(hc->hw.fifos))->b_chans.rxbz_b2;
 322                 fifo_state = hc->hw.fifo_en & HFCPCI_FIFOEN_B2RX;
 323         } else {
 324                 bzr = &((union fifo_area *)(hc->hw.fifos))->b_chans.rxbz_b1;
 325                 fifo_state = hc->hw.fifo_en & HFCPCI_FIFOEN_B1RX;
 326         }
 327         if (fifo_state)
 328                 hc->hw.fifo_en ^= fifo_state;
 329         Write_hfc(hc, HFCPCI_FIFO_EN, hc->hw.fifo_en);
 330         hc->hw.last_bfifo_cnt[fifo] = 0;
 331         bzr->f1 = MAX_B_FRAMES;
 332         bzr->f2 = bzr->f1;      /* init F pointers to remain constant */
 333         bzr->za[MAX_B_FRAMES].z1 = cpu_to_le16(B_FIFO_SIZE + B_SUB_VAL - 1);
 334         bzr->za[MAX_B_FRAMES].z2 = cpu_to_le16(
 335             le16_to_cpu(bzr->za[MAX_B_FRAMES].z1));
 336         if (fifo_state)
 337                 hc->hw.fifo_en |= fifo_state;
 338         Write_hfc(hc, HFCPCI_FIFO_EN, hc->hw.fifo_en);
 339 }
 340
 341 /*
 342  * clear the desired B-channel tx fifo
 343  */
 344 static void hfcpci_clear_fifo_tx(struct hfc_pci *hc, int fifo)
 345 {
 346         u_char          fifo_state;
 347         struct bzfifo   *bzt;
 348
 349         if (fifo) {
 350                 bzt = &((union fifo_area *)(hc->hw.fifos))->b_chans.txbz_b2;
 351                 fifo_state = hc->hw.fifo_en & HFCPCI_FIFOEN_B2TX;
 352         } else {
 353                 bzt = &((union fifo_area *)(hc->hw.fifos))->b_chans.txbz_b1;
 354                 fifo_state = hc->hw.fifo_en & HFCPCI_FIFOEN_B1TX;
 355         }
 356         if (fifo_state)
 357                 hc->hw.fifo_en ^= fifo_state;
 358         Write_hfc(hc, HFCPCI_FIFO_EN, hc->hw.fifo_en);
 359         if (hc->bch[fifo].debug & DEBUG_HW_BCHANNEL)
 360                 printk(KERN_DEBUG "hfcpci_clear_fifo_tx%d f1(%x) f2(%x) "
 361                     "z1(%x) z2(%x) state(%x)\n",
 362                     fifo, bzt->f1, bzt->f2,
 363                     le16_to_cpu(bzt->za[MAX_B_FRAMES].z1),
 364                     le16_to_cpu(bzt->za[MAX_B_FRAMES].z2),
 365                     fifo_state);
 366         bzt->f2 = MAX_B_FRAMES;
 367         bzt->f1 = bzt->f2;      /* init F pointers to remain constant */
 368         bzt->za[MAX_B_FRAMES].z1 = cpu_to_le16(B_FIFO_SIZE + B_SUB_VAL - 1);
 369         bzt->za[MAX_B_FRAMES].z2 = cpu_to_le16(
 370             le16_to_cpu(bzt->za[MAX_B_FRAMES].z1 - 1));
 371         if (fifo_state)
 372                 hc->hw.fifo_en |= fifo_state;
 373         Write_hfc(hc, HFCPCI_FIFO_EN, hc->hw.fifo_en);
 374         if (hc->bch[fifo].debug & DEBUG_HW_BCHANNEL)
 375                 printk(KERN_DEBUG
 376                     "hfcpci_clear_fifo_tx%d f1(%x) f2(%x) z1(%x) z2(%x)\n",
 377                     fifo, bzt->f1, bzt->f2,
 378                     le16_to_cpu(bzt->za[MAX_B_FRAMES].z1),
 379                     le16_to_cpu(bzt->za[MAX_B_FRAMES].z2));
 380 }
 381
 382 /*
 383  * read a complete B-frame out of the buffer
 384  */
 385 static void
 386 hfcpci_empty_bfifo(struct bchannel *bch, struct bzfifo *bz,
 387     u_char *bdata, int count)
 388 {
 389         u_char          *ptr, *ptr1, new_f2;
 390         int             total, maxlen, new_z2;
 391         struct zt       *zp;
 392
 393         if ((bch->debug & DEBUG_HW_BCHANNEL) && !(bch->debug & DEBUG_HW_BFIFO))
 394                 printk(KERN_DEBUG "hfcpci_empty_fifo\n");
 395         zp = &bz->za[bz->f2];   /* point to Z-Regs */
 396         new_z2 = le16_to_cpu(zp->z2) + count;   /* new position in fifo */
 397         if (new_z2 >= (B_FIFO_SIZE + B_SUB_VAL))
 398                 new_z2 -= B_FIFO_SIZE;  /* buffer wrap */
 399         new_f2 = (bz->f2 + 1) & MAX_B_FRAMES;
 400         if ((count > MAX_DATA_SIZE + 3) || (count < 4) ||
 401             (*(bdata + (le16_to_cpu(zp->z1) - B_SUB_VAL)))) {
 402                 if (bch->debug & DEBUG_HW)
 403                         printk(KERN_DEBUG "hfcpci_empty_fifo: incoming packet "
 404                             "invalid length %d or crc\n", count);
 405 #ifdef ERROR_STATISTIC
 406                 bch->err_inv++;
 407 #endif
 408                 bz->za[new_f2].z2 = cpu_to_le16(new_z2);
 409                 bz->f2 = new_f2;        /* next buffer */
 410         } else {
 411                 bch->rx_skb = mI_alloc_skb(count - 3, GFP_ATOMIC);
 412                 if (!bch->rx_skb) {
 413                         printk(KERN_WARNING "HFCPCI: receive out of memory\n");
 414                         return;
 415                 }
 416                 total = count;
 417                 count -= 3;
 418                 ptr = skb_put(bch->rx_skb, count);
 419
 420                 if (le16_to_cpu(zp->z2) + count <= B_FIFO_SIZE + B_SUB_VAL)
 421                         maxlen = count;         /* complete transfer */
 422                 else
 423                         maxlen = B_FIFO_SIZE + B_SUB_VAL -
 424                             le16_to_cpu(zp->z2);        /* maximum */
 425
 426                 ptr1 = bdata + (le16_to_cpu(zp->z2) - B_SUB_VAL);
 427                     /* start of data */
 428                 memcpy(ptr, ptr1, maxlen);      /* copy data */
 429                 count -= maxlen;
 430
 431                 if (count) {    /* rest remaining */
 432                         ptr += maxlen;
 433                         ptr1 = bdata;   /* start of buffer */
 434                         memcpy(ptr, ptr1, count);       /* rest */
 435                 }
 436                 bz->za[new_f2].z2 = cpu_to_le16(new_z2);
 437                 bz->f2 = new_f2;        /* next buffer */
 438                 recv_Bchannel(bch);
 439         }
 440 }
 441
 442 /*
 443  * D-channel receive procedure
 444  */
 445 static int
 446 receive_dmsg(struct hfc_pci *hc)
 447 {
 448         struct dchannel *dch = &hc->dch;
 449         int             maxlen;
 450         int             rcnt, total;
 451         int             count = 5;
 452         u_char          *ptr, *ptr1;
 453         struct dfifo    *df;
 454         struct zt       *zp;
 455
 456         df = &((union fifo_area *)(hc->hw.fifos))->d_chan.d_rx;
 457         while (((df->f1 & D_FREG_MASK) != (df->f2 & D_FREG_MASK)) && count--) {
 458                 zp = &df->za[df->f2 & D_FREG_MASK];
 459                 rcnt = le16_to_cpu(zp->z1) - le16_to_cpu(zp->z2);
 460                 if (rcnt < 0)
 461                         rcnt += D_FIFO_SIZE;
 462                 rcnt++;
 463                 if (dch->debug & DEBUG_HW_DCHANNEL)
 464                         printk(KERN_DEBUG
 465                             "hfcpci recd f1(%d) f2(%d) z1(%x) z2(%x) cnt(%d)\n",
 466                                 df->f1, df->f2,
 467                                 le16_to_cpu(zp->z1),
 468                                 le16_to_cpu(zp->z2),
 469                                 rcnt);
 470
 471                 if ((rcnt > MAX_DFRAME_LEN + 3) || (rcnt < 4) ||
 472                     (df->data[le16_to_cpu(zp->z1)])) {
 473                         if (dch->debug & DEBUG_HW)
 474                                 printk(KERN_DEBUG
 475                                     "empty_fifo hfcpci paket inv. len "
 476                                     "%d or crc %d\n",
 477                                     rcnt,
 478                                     df->data[le16_to_cpu(zp->z1)]);
 479 #ifdef ERROR_STATISTIC
 480                         cs->err_rx++;
 481 #endif
 482                         df->f2 = ((df->f2 + 1) & MAX_D_FRAMES) |
 483                             (MAX_D_FRAMES + 1); /* next buffer */
 484                         df->za[df->f2 & D_FREG_MASK].z2 =
 485                             cpu_to_le16((zp->z2 + rcnt) & (D_FIFO_SIZE - 1));
 486                 } else {
 487                         dch->rx_skb = mI_alloc_skb(rcnt - 3, GFP_ATOMIC);
 488                         if (!dch->rx_skb) {
 489                                 printk(KERN_WARNING
 490                                     "HFC-PCI: D receive out of memory\n");
 491                                 break;
 492                         }
 493                         total = rcnt;
 494                         rcnt -= 3;
 495                         ptr = skb_put(dch->rx_skb, rcnt);
 496
 497                         if (le16_to_cpu(zp->z2) + rcnt <= D_FIFO_SIZE)
 498                                 maxlen = rcnt;  /* complete transfer */
 499                         else
 500                                 maxlen = D_FIFO_SIZE - le16_to_cpu(zp->z2);
 501                                     /* maximum */
 502
 503                         ptr1 = df->data + le16_to_cpu(zp->z2);
 504                             /* start of data */
 505                         memcpy(ptr, ptr1, maxlen);      /* copy data */
 506                         rcnt -= maxlen;
 507
 508                         if (rcnt) {     /* rest remaining */
 509                                 ptr += maxlen;
 510                                 ptr1 = df->data;        /* start of buffer */
 511                                 memcpy(ptr, ptr1, rcnt);        /* rest */
 512                         }
 513                         df->f2 = ((df->f2 + 1) & MAX_D_FRAMES) |
 514                             (MAX_D_FRAMES + 1); /* next buffer */
 515                         df->za[df->f2 & D_FREG_MASK].z2 = cpu_to_le16((
 516                             le16_to_cpu(zp->z2) + total) & (D_FIFO_SIZE - 1));
 517                         recv_Dchannel(dch);
 518                 }
 519         }
 520         return 1;
 521 }
 522
 523 /*
 524  * check for transparent receive data and read max one threshold size if avail
 525  */
 526 int
 527 hfcpci_empty_fifo_trans(struct bchannel *bch, struct bzfifo *bz, u_char *bdata)
 528 {
 529         unsigned short  *z1r, *z2r;
 530         int             new_z2, fcnt, maxlen;
 531         u_char          *ptr, *ptr1;
 532
 533         z1r = &bz->za[MAX_B_FRAMES].z1;         /* pointer to z reg */
 534         z2r = z1r + 1;
 535
 536         fcnt = le16_to_cpu(*z1r) - le16_to_cpu(*z2r);
 537         if (!fcnt)
 538                 return 0;       /* no data avail */
 539
 540         if (fcnt <= 0)
 541                 fcnt += B_FIFO_SIZE;    /* bytes actually buffered */
 542         if (fcnt > HFCPCI_BTRANS_THRESHOLD)
 543                 fcnt = HFCPCI_BTRANS_THRESHOLD;         /* limit size */
 544
 545         new_z2 = le16_to_cpu(*z2r) + fcnt;      /* new position in fifo */
 546         if (new_z2 >= (B_FIFO_SIZE + B_SUB_VAL))
 547                 new_z2 -= B_FIFO_SIZE;  /* buffer wrap */
 548
 549         bch->rx_skb = mI_alloc_skb(fcnt, GFP_ATOMIC);
 550         if (bch->rx_skb) {
 551                 ptr = skb_put(bch->rx_skb, fcnt);
 552                 if (le16_to_cpu(*z2r) + fcnt <= B_FIFO_SIZE + B_SUB_VAL)
 553                         maxlen = fcnt;  /* complete transfer */
 554                 else
 555                         maxlen = B_FIFO_SIZE + B_SUB_VAL - le16_to_cpu(*z2r);
 556                             /* maximum */
 557
 558                 ptr1 = bdata + (le16_to_cpu(*z2r) - B_SUB_VAL);
 559                     /* start of data */
 560                 memcpy(ptr, ptr1, maxlen);      /* copy data */
 561                 fcnt -= maxlen;
 562
 563                 if (fcnt) {     /* rest remaining */
 564                         ptr += maxlen;
 565                         ptr1 = bdata;   /* start of buffer */
 566                         memcpy(ptr, ptr1, fcnt);        /* rest */
 567                 }
 568                 recv_Bchannel(bch);
 569         } else
 570                 printk(KERN_WARNING "HFCPCI: receive out of memory\n");
 571
 572         *z2r = cpu_to_le16(new_z2);             /* new position */
 573         return 1;
 574 }
 575
 576 /*
 577  * B-channel main receive routine
 578  */
 579 void
 580 main_rec_hfcpci(struct bchannel *bch)
 581 {
 582         struct hfc_pci  *hc = bch->hw;
 583         int             rcnt, real_fifo;
 584         int             receive, count = 5;
 585         struct bzfifo   *bz;
 586         u_char          *bdata;
 587         struct zt       *zp;
 588
 589
 590         if ((bch->nr & 2) && (!hc->hw.bswapped)) {
 591                 bz = &((union fifo_area *)(hc->hw.fifos))->b_chans.rxbz_b2;
 592                 bdata = ((union fifo_area *)(hc->hw.fifos))->b_chans.rxdat_b2;
 593                 real_fifo = 1;
 594         } else {
 595                 bz = &((union fifo_area *)(hc->hw.fifos))->b_chans.rxbz_b1;
 596                 bdata = ((union fifo_area *)(hc->hw.fifos))->b_chans.rxdat_b1;
 597                 real_fifo = 0;
 598         }
 599 Begin:
 600         count--;
 601         if (bz->f1 != bz->f2) {
 602                 if (bch->debug & DEBUG_HW_BCHANNEL)
 603                         printk(KERN_DEBUG "hfcpci rec ch(%x) f1(%d) f2(%d)\n",
 604                             bch->nr, bz->f1, bz->f2);
 605                 zp = &bz->za[bz->f2];
 606
 607                 rcnt = le16_to_cpu(zp->z1) - le16_to_cpu(zp->z2);
 608                 if (rcnt < 0)
 609                         rcnt += B_FIFO_SIZE;
 610                 rcnt++;
 611                 if (bch->debug & DEBUG_HW_BCHANNEL)
 612                         printk(KERN_DEBUG
 613                             "hfcpci rec ch(%x) z1(%x) z2(%x) cnt(%d)\n",
 614                             bch->nr, le16_to_cpu(zp->z1),
 615                             le16_to_cpu(zp->z2), rcnt);
 616                 hfcpci_empty_bfifo(bch, bz, bdata, rcnt);
 617                 rcnt = bz->f1 - bz->f2;
 618                 if (rcnt < 0)
 619                         rcnt += MAX_B_FRAMES + 1;
 620                 if (hc->hw.last_bfifo_cnt[real_fifo] > rcnt + 1) {
 621                         rcnt = 0;
 622                         hfcpci_clear_fifo_rx(hc, real_fifo);
 623                 }
 624                 hc->hw.last_bfifo_cnt[real_fifo] = rcnt;
 625                 if (rcnt > 1)
 626                         receive = 1;
 627                 else
 628                         receive = 0;
 629         } else if (test_bit(FLG_TRANSPARENT, &bch->Flags))
 630                 receive = hfcpci_empty_fifo_trans(bch, bz, bdata);
 631         else
 632                 receive = 0;
 633         if (count && receive)
 634                 goto Begin;
 635
 636 }
 637
 638 /*
 639  * D-channel send routine
 640  */
 641 static void
 642 hfcpci_fill_dfifo(struct hfc_pci *hc)
 643 {
 644         struct dchannel *dch = &hc->dch;
 645         int             fcnt;
 646         int             count, new_z1, maxlen;
 647         struct dfifo    *df;
 648         u_char          *src, *dst, new_f1;
 649
 650         if ((dch->debug & DEBUG_HW_DCHANNEL) && !(dch->debug & DEBUG_HW_DFIFO))
 651                 printk(KERN_DEBUG "%s\n", __func__);
 652
 653         if (!dch->tx_skb)
 654                 return;
 655         count = dch->tx_skb->len - dch->tx_idx;
 656         if (count <= 0)
 657                 return;
 658         df = &((union fifo_area *) (hc->hw.fifos))->d_chan.d_tx;
 659
 660         if (dch->debug & DEBUG_HW_DFIFO)
 661                 printk(KERN_DEBUG "%s:f1(%d) f2(%d) z1(f1)(%x)\n", __func__,
 662                     df->f1, df->f2,
 663                     le16_to_cpu(df->za[df->f1 & D_FREG_MASK].z1));
 664         fcnt = df->f1 - df->f2; /* frame count actually buffered */
 665         if (fcnt < 0)
 666                 fcnt += (MAX_D_FRAMES + 1);     /* if wrap around */
 667         if (fcnt > (MAX_D_FRAMES - 1)) {
 668                 if (dch->debug & DEBUG_HW_DCHANNEL)
 669                         printk(KERN_DEBUG
 670                             "hfcpci_fill_Dfifo more as 14 frames\n");
 671 #ifdef ERROR_STATISTIC
 672                 cs->err_tx++;
 673 #endif
 674                 return;
 675         }
 676         /* now determine free bytes in FIFO buffer */
 677         maxlen = le16_to_cpu(df->za[df->f2 & D_FREG_MASK].z2) -
 678             le16_to_cpu(df->za[df->f1 & D_FREG_MASK].z1) - 1;
 679         if (maxlen <= 0)
 680                 maxlen += D_FIFO_SIZE;  /* count now contains available bytes */
 681
 682         if (dch->debug & DEBUG_HW_DCHANNEL)
 683                 printk(KERN_DEBUG "hfcpci_fill_Dfifo count(%d/%d)\n",
 684                         count, maxlen);
 685         if (count > maxlen) {
 686                 if (dch->debug & DEBUG_HW_DCHANNEL)
 687                         printk(KERN_DEBUG "hfcpci_fill_Dfifo no fifo mem\n");
 688                 return;
 689         }
 690         new_z1 = (le16_to_cpu(df->za[df->f1 & D_FREG_MASK].z1) + count) &
 691             (D_FIFO_SIZE - 1);
 692         new_f1 = ((df->f1 + 1) & D_FREG_MASK) | (D_FREG_MASK + 1);
 693         src = dch->tx_skb->data + dch->tx_idx;  /* source pointer */
 694         dst = df->data + le16_to_cpu(df->za[df->f1 & D_FREG_MASK].z1);
 695         maxlen = D_FIFO_SIZE - le16_to_cpu(df->za[df->f1 & D_FREG_MASK].z1);
 696             /* end fifo */
 697         if (maxlen > count)
 698                 maxlen = count; /* limit size */
 699         memcpy(dst, src, maxlen);       /* first copy */
 700
 701         count -= maxlen;        /* remaining bytes */
 702         if (count) {
 703                 dst = df->data; /* start of buffer */
 704                 src += maxlen;  /* new position */
 705                 memcpy(dst, src, count);
 706         }
 707         df->za[new_f1 & D_FREG_MASK].z1 = cpu_to_le16(new_z1);
 708             /* for next buffer */
 709         df->za[df->f1 & D_FREG_MASK].z1 = cpu_to_le16(new_z1);
 710             /* new pos actual buffer */
 711         df->f1 = new_f1;        /* next frame */
 712         dch->tx_idx = dch->tx_skb->len;
 713 }
 714
 715 /*
 716  * B-channel send routine
 717  */
 718 static void
 719 hfcpci_fill_fifo(struct bchannel *bch)
 720 {
 721         struct hfc_pci  *hc = bch->hw;
 722         int             maxlen, fcnt;
 723         int             count, new_z1;
 724         struct bzfifo   *bz;
 725         u_char          *bdata;
 726         u_char          new_f1, *src, *dst;
 727         unsigned short  *z1t, *z2t;
 728
 729         if ((bch->debug & DEBUG_HW_BCHANNEL) && !(bch->debug & DEBUG_HW_BFIFO))
 730                 printk(KERN_DEBUG "%s\n", __func__);
 731         if ((!bch->tx_skb) || bch->tx_skb->len <= 0)
 732                 return;
 733         count = bch->tx_skb->len - bch->tx_idx;
 734         if ((bch->nr & 2) && (!hc->hw.bswapped)) {
 735                 bz = &((union fifo_area *)(hc->hw.fifos))->b_chans.txbz_b2;
 736                 bdata = ((union fifo_area *)(hc->hw.fifos))->b_chans.txdat_b2;
 737         } else {
 738                 bz = &((union fifo_area *)(hc->hw.fifos))->b_chans.txbz_b1;
 739                 bdata = ((union fifo_area *)(hc->hw.fifos))->b_chans.txdat_b1;
 740         }
 741
 742         if (test_bit(FLG_TRANSPARENT, &bch->Flags)) {
 743                 z1t = &bz->za[MAX_B_FRAMES].z1;
 744                 z2t = z1t + 1;
 745                 if (bch->debug & DEBUG_HW_BCHANNEL)
 746                         printk(KERN_DEBUG "hfcpci_fill_fifo_trans ch(%x) "
 747                             "cnt(%d) z1(%x) z2(%x)\n", bch->nr, count,
 748                             le16_to_cpu(*z1t), le16_to_cpu(*z2t));
 749                 fcnt = le16_to_cpu(*z2t) - le16_to_cpu(*z1t);
 750                 if (fcnt <= 0)
 751                         fcnt += B_FIFO_SIZE;
 752                             /* fcnt contains available bytes in fifo */
 753                 fcnt = B_FIFO_SIZE - fcnt;
 754                     /* remaining bytes to send (bytes in fifo) */
 755 next_t_frame:
 756                 count = bch->tx_skb->len - bch->tx_idx;
 757                 /* maximum fill shall be HFCPCI_BTRANS_MAX */
 758                 if (count > HFCPCI_BTRANS_MAX - fcnt)
 759                         count = HFCPCI_BTRANS_MAX - fcnt;
 760                 if (count <= 0)
 761                         return;
 762                 /* data is suitable for fifo */
 763                 new_z1 = le16_to_cpu(*z1t) + count;
 764                     /* new buffer Position */
 765                 if (new_z1 >= (B_FIFO_SIZE + B_SUB_VAL))
 766                         new_z1 -= B_FIFO_SIZE;  /* buffer wrap */
 767                 src = bch->tx_skb->data + bch->tx_idx;
 768                     /* source pointer */
 769                 dst = bdata + (le16_to_cpu(*z1t) - B_SUB_VAL);
 770                 maxlen = (B_FIFO_SIZE + B_SUB_VAL) - le16_to_cpu(*z1t);
 771                     /* end of fifo */
 772                 if (bch->debug & DEBUG_HW_BFIFO)
 773                         printk(KERN_DEBUG "hfcpci_FFt fcnt(%d) "
 774                             "maxl(%d) nz1(%x) dst(%p)\n",
 775                             fcnt, maxlen, new_z1, dst);
 776                 fcnt += count;
 777                 bch->tx_idx += count;
 778                 if (maxlen > count)
 779                         maxlen = count;         /* limit size */
 780                 memcpy(dst, src, maxlen);       /* first copy */
 781                 count -= maxlen;        /* remaining bytes */
 782                 if (count) {
 783                         dst = bdata;    /* start of buffer */
 784                         src += maxlen;  /* new position */
 785                         memcpy(dst, src, count);
 786                 }
 787                 *z1t = cpu_to_le16(new_z1);     /* now send data */
 788                 if (bch->tx_idx < bch->tx_skb->len)
 789                         return;
 790                 /* send confirm, on trans, free on hdlc. */
 791                 if (test_bit(FLG_TRANSPARENT, &bch->Flags))
 792                         confirm_Bsend(bch);
 793                 dev_kfree_skb(bch->tx_skb);
 794                 if (get_next_bframe(bch))
 795                         goto next_t_frame;
 796                 return;
 797         }
 798         if (bch->debug & DEBUG_HW_BCHANNEL)
 799                 printk(KERN_DEBUG
 800                     "%s: ch(%x) f1(%d) f2(%d) z1(f1)(%x)\n",
 801                     __func__, bch->nr, bz->f1, bz->f2,
 802                     bz->za[bz->f1].z1);
 803         fcnt = bz->f1 - bz->f2; /* frame count actually buffered */
 804         if (fcnt < 0)
 805                 fcnt += (MAX_B_FRAMES + 1);     /* if wrap around */
 806         if (fcnt > (MAX_B_FRAMES - 1)) {
 807                 if (bch->debug & DEBUG_HW_BCHANNEL)
 808                         printk(KERN_DEBUG
 809                             "hfcpci_fill_Bfifo more as 14 frames\n");
 810                 return;
 811         }
 812         /* now determine free bytes in FIFO buffer */
 813         maxlen = le16_to_cpu(bz->za[bz->f2].z2) -
 814             le16_to_cpu(bz->za[bz->f1].z1) - 1;
 815         if (maxlen <= 0)
 816                 maxlen += B_FIFO_SIZE;  /* count now contains available bytes */
 817
 818         if (bch->debug & DEBUG_HW_BCHANNEL)
 819                 printk(KERN_DEBUG "hfcpci_fill_fifo ch(%x) count(%d/%d)\n",
 820                         bch->nr, count, maxlen);
 821
 822         if (maxlen < count) {
 823                 if (bch->debug & DEBUG_HW_BCHANNEL)
 824                         printk(KERN_DEBUG "hfcpci_fill_fifo no fifo mem\n");
 825                 return;
 826         }
 827         new_z1 = le16_to_cpu(bz->za[bz->f1].z1) + count;
 828             /* new buffer Position */
 829         if (new_z1 >= (B_FIFO_SIZE + B_SUB_VAL))
 830                 new_z1 -= B_FIFO_SIZE;  /* buffer wrap */
 831
 832         new_f1 = ((bz->f1 + 1) & MAX_B_FRAMES);
 833         src = bch->tx_skb->data + bch->tx_idx;  /* source pointer */
 834         dst = bdata + (le16_to_cpu(bz->za[bz->f1].z1) - B_SUB_VAL);
 835         maxlen = (B_FIFO_SIZE + B_SUB_VAL) - le16_to_cpu(bz->za[bz->f1].z1);
 836             /* end fifo */
 837         if (maxlen > count)
 838                 maxlen = count; /* limit size */
 839         memcpy(dst, src, maxlen);       /* first copy */
 840
 841         count -= maxlen;        /* remaining bytes */
 842         if (count) {
 843                 dst = bdata;    /* start of buffer */
 844                 src += maxlen;  /* new position */
 845                 memcpy(dst, src, count);
 846         }
 847         bz->za[new_f1].z1 = cpu_to_le16(new_z1);        /* for next buffer */
 848         bz->f1 = new_f1;        /* next frame */
 849         dev_kfree_skb(bch->tx_skb);
 850         get_next_bframe(bch);
 851 }
 852
 853
 854
 855 /*
 856  * handle L1 state changes TE
 857  */
 858
 859 static void
 860 ph_state_te(struct dchannel *dch)
 861 {
 862         if (dch->debug)
 863                 printk(KERN_DEBUG "%s: TE newstate %x\n",
 864                         __func__, dch->state);
 865         switch (dch->state) {
 866         case 0:
 867                 l1_event(dch->l1, HW_RESET_IND);
 868                 break;
 869         case 3:
 870                 l1_event(dch->l1, HW_DEACT_IND);
 871                 break;
 872         case 5:
 873         case 8:
 874                 l1_event(dch->l1, ANYSIGNAL);
 875                 break;
 876         case 6:
 877                 l1_event(dch->l1, INFO2);
 878                 break;
 879         case 7:
 880                 l1_event(dch->l1, INFO4_P8);
 881                 break;
 882         }
 883 }
 884
 885 /*
 886  * handle L1 state changes NT
 887  */
 888
 889 static void
 890 handle_nt_timer3(struct dchannel *dch) {
 891         struct hfc_pci  *hc = dch->hw;
 892
 893         test_and_clear_bit(FLG_HFC_TIMER_T3, &dch->Flags);
 894         hc->hw.int_m1 &= ~HFCPCI_INTS_TIMER;
 895         Write_hfc(hc, HFCPCI_INT_M1, hc->hw.int_m1);
 896         hc->hw.nt_timer = 0;
 897         test_and_set_bit(FLG_ACTIVE, &dch->Flags);
 898         if (test_bit(HFC_CFG_MASTER, &hc->cfg))
 899                 hc->hw.mst_m |= HFCPCI_MASTER;
 900         Write_hfc(hc, HFCPCI_MST_MODE, hc->hw.mst_m);
 901         _queue_data(&dch->dev.D, PH_ACTIVATE_IND,
 902             MISDN_ID_ANY, 0, NULL, GFP_ATOMIC);
 903 }
 904
 905 static void
 906 ph_state_nt(struct dchannel *dch)
 907 {
 908         struct hfc_pci  *hc = dch->hw;
 909
 910         if (dch->debug)
 911                 printk(KERN_DEBUG "%s: NT newstate %x\n",
 912                         __func__, dch->state);
 913         switch (dch->state) {
 914         case 2:
 915                 if (hc->hw.nt_timer < 0) {
 916                         hc->hw.nt_timer = 0;
 917                         test_and_clear_bit(FLG_HFC_TIMER_T3, &dch->Flags);
 918                         test_and_clear_bit(FLG_HFC_TIMER_T1, &dch->Flags);
 919                         hc->hw.int_m1 &= ~HFCPCI_INTS_TIMER;
 920                         Write_hfc(hc, HFCPCI_INT_M1, hc->hw.int_m1);
 921                         /* Clear already pending ints */
 922                         if (Read_hfc(hc, HFCPCI_INT_S1));
 923                         Write_hfc(hc, HFCPCI_STATES, 4 | HFCPCI_LOAD_STATE);
 924                         udelay(10);
 925                         Write_hfc(hc, HFCPCI_STATES, 4);
 926                         dch->state = 4;
 927                 } else if (hc->hw.nt_timer == 0) {
 928                         hc->hw.int_m1 |= HFCPCI_INTS_TIMER;
 929                         Write_hfc(hc, HFCPCI_INT_M1, hc->hw.int_m1);
 930                         hc->hw.nt_timer = NT_T1_COUNT;
 931                         hc->hw.ctmt &= ~HFCPCI_AUTO_TIMER;
 932                         hc->hw.ctmt |= HFCPCI_TIM3_125;
 933                         Write_hfc(hc, HFCPCI_CTMT, hc->hw.ctmt |
 934                                 HFCPCI_CLTIMER);
 935                         test_and_clear_bit(FLG_HFC_TIMER_T3, &dch->Flags);
 936                         test_and_set_bit(FLG_HFC_TIMER_T1, &dch->Flags);
 937                         /* allow G2 -> G3 transition */
 938                         Write_hfc(hc, HFCPCI_STATES, 2 | HFCPCI_NT_G2_G3);
 939                 } else {
 940                         Write_hfc(hc, HFCPCI_STATES, 2 | HFCPCI_NT_G2_G3);
 941                 }
 942                 break;
 943         case 1:
 944                 hc->hw.nt_timer = 0;
 945                 test_and_clear_bit(FLG_HFC_TIMER_T3, &dch->Flags);
 946                 test_and_clear_bit(FLG_HFC_TIMER_T1, &dch->Flags);
 947                 hc->hw.int_m1 &= ~HFCPCI_INTS_TIMER;
 948                 Write_hfc(hc, HFCPCI_INT_M1, hc->hw.int_m1);
 949                 test_and_clear_bit(FLG_ACTIVE, &dch->Flags);
 950                 hc->hw.mst_m &= ~HFCPCI_MASTER;
 951                 Write_hfc(hc, HFCPCI_MST_MODE, hc->hw.mst_m);
 952                 test_and_clear_bit(FLG_L2_ACTIVATED, &dch->Flags);
 953                 _queue_data(&dch->dev.D, PH_DEACTIVATE_IND,
 954                     MISDN_ID_ANY, 0, NULL, GFP_ATOMIC);
 955                 break;
 956         case 4:
 957                 hc->hw.nt_timer = 0;
 958                 test_and_clear_bit(FLG_HFC_TIMER_T3, &dch->Flags);
 959                 test_and_clear_bit(FLG_HFC_TIMER_T1, &dch->Flags);
 960                 hc->hw.int_m1 &= ~HFCPCI_INTS_TIMER;
 961                 Write_hfc(hc, HFCPCI_INT_M1, hc->hw.int_m1);
 962                 break;
 963         case 3:
 964                 if (!test_and_set_bit(FLG_HFC_TIMER_T3, &dch->Flags)) {
 965                         if (!test_and_clear_bit(FLG_L2_ACTIVATED,
 966                             &dch->Flags)) {
 967                                 handle_nt_timer3(dch);
 968                                 break;
 969                         }
 970                         test_and_clear_bit(FLG_HFC_TIMER_T1, &dch->Flags);
 971                         hc->hw.int_m1 |= HFCPCI_INTS_TIMER;
 972                         Write_hfc(hc, HFCPCI_INT_M1, hc->hw.int_m1);
 973                         hc->hw.nt_timer = NT_T3_COUNT;
 974                         hc->hw.ctmt &= ~HFCPCI_AUTO_TIMER;
 975                         hc->hw.ctmt |= HFCPCI_TIM3_125;
 976                         Write_hfc(hc, HFCPCI_CTMT, hc->hw.ctmt |
 977                                 HFCPCI_CLTIMER);
 978                 }
 979                 break;
 980         }
 981 }
 982
 983 static void
 984 ph_state(struct dchannel *dch)
 985 {
 986         struct hfc_pci  *hc = dch->hw;
 987
 988         if (hc->hw.protocol == ISDN_P_NT_S0) {
 989                 if (test_bit(FLG_HFC_TIMER_T3, &dch->Flags) &&
 990                     hc->hw.nt_timer < 0)
 991                         handle_nt_timer3(dch);
 992                 else
 993                         ph_state_nt(dch);
 994         } else
 995                 ph_state_te(dch);
 996 }
 997
 998 /*
 999  * Layer 1 callback function
1000  */
1001 static int
1002 hfc_l1callback(struct dchannel *dch, u_int cmd)
1003 {
1004         struct hfc_pci          *hc = dch->hw;
1005
1006         switch (cmd) {
1007         case INFO3_P8:
1008         case INFO3_P10:
1009                 if (test_bit(HFC_CFG_MASTER, &hc->cfg))
1010                         hc->hw.mst_m |= HFCPCI_MASTER;
1011                 Write_hfc(hc, HFCPCI_MST_MODE, hc->hw.mst_m);
1012                 break;
1013         case HW_RESET_REQ:
1014                 Write_hfc(hc, HFCPCI_STATES, HFCPCI_LOAD_STATE | 3);
1015                 /* HFC ST 3 */
1016                 udelay(6);
1017                 Write_hfc(hc, HFCPCI_STATES, 3);        /* HFC ST 2 */
1018                 if (test_bit(HFC_CFG_MASTER, &hc->cfg))
1019                         hc->hw.mst_m |= HFCPCI_MASTER;
1020                 Write_hfc(hc, HFCPCI_MST_MODE, hc->hw.mst_m);
1021                 Write_hfc(hc, HFCPCI_STATES, HFCPCI_ACTIVATE |
1022                    HFCPCI_DO_ACTION);
1023                 l1_event(dch->l1, HW_POWERUP_IND);
1024                 break;
1025         case HW_DEACT_REQ:
1026                 hc->hw.mst_m &= ~HFCPCI_MASTER;
1027                 Write_hfc(hc, HFCPCI_MST_MODE, hc->hw.mst_m);
1028                 skb_queue_purge(&dch->squeue);
1029                 if (dch->tx_skb) {
1030                         dev_kfree_skb(dch->tx_skb);
1031                         dch->tx_skb = NULL;
1032                 }
1033                 dch->tx_idx = 0;
1034                 if (dch->rx_skb) {
1035                         dev_kfree_skb(dch->rx_skb);
1036                         dch->rx_skb = NULL;
1037                 }
1038                 test_and_clear_bit(FLG_TX_BUSY, &dch->Flags);
1039                 if (test_and_clear_bit(FLG_BUSY_TIMER, &dch->Flags))
1040                         del_timer(&dch->timer);
1041                 break;
1042         case HW_POWERUP_REQ:
1043                 Write_hfc(hc, HFCPCI_STATES, HFCPCI_DO_ACTION);
1044                 break;
1045         case PH_ACTIVATE_IND:
1046                 test_and_set_bit(FLG_ACTIVE, &dch->Flags);
1047                 _queue_data(&dch->dev.D, cmd, MISDN_ID_ANY, 0, NULL,
1048                         GFP_ATOMIC);
1049                 break;
1050         case PH_DEACTIVATE_IND:
1051                 test_and_clear_bit(FLG_ACTIVE, &dch->Flags);
1052                 _queue_data(&dch->dev.D, cmd, MISDN_ID_ANY, 0, NULL,
1053                         GFP_ATOMIC);
1054                 break;
1055         default:
1056                 if (dch->debug & DEBUG_HW)
1057                         printk(KERN_DEBUG "%s: unknown command %x\n",
1058                             __func__, cmd);
1059                 return -1;
1060         }
1061         return 0;
1062 }
1063
1064 /*
1065  * Interrupt handler
1066  */
1067 static inline void
1068 tx_birq(struct bchannel *bch)
1069 {
1070         if (bch->tx_skb && bch->tx_idx < bch->tx_skb->len)
1071                 hfcpci_fill_fifo(bch);
1072         else {
1073                 if (bch->tx_skb)
1074                         dev_kfree_skb(bch->tx_skb);
1075                 if (get_next_bframe(bch))
1076                         hfcpci_fill_fifo(bch);
1077         }
1078 }
1079
1080 static inline void
1081 tx_dirq(struct dchannel *dch)
1082 {
1083         if (dch->tx_skb && dch->tx_idx < dch->tx_skb->len)
1084                 hfcpci_fill_dfifo(dch->hw);
1085         else {
1086                 if (dch->tx_skb)
1087                         dev_kfree_skb(dch->tx_skb);
1088                 if (get_next_dframe(dch))
1089                         hfcpci_fill_dfifo(dch->hw);
1090         }
1091 }
1092
1093 static irqreturn_t
1094 hfcpci_int(int intno, void *dev_id)
1095 {
1096         struct hfc_pci  *hc = dev_id;
1097         u_char          exval;
1098         struct bchannel *bch;
1099         u_char          val, stat;
1100
1101         spin_lock(&hc->lock);
1102         if (!(hc->hw.int_m2 & 0x08)) {
1103                 spin_unlock(&hc->lock);
1104                 return IRQ_NONE; /* not initialised */
1105         }
1106         stat = Read_hfc(hc, HFCPCI_STATUS);
1107         if (HFCPCI_ANYINT & stat) {
1108                 val = Read_hfc(hc, HFCPCI_INT_S1);
1109                 if (hc->dch.debug & DEBUG_HW_DCHANNEL)
1110                         printk(KERN_DEBUG
1111                             "HFC-PCI: stat(%02x) s1(%02x)\n", stat, val);
1112         } else {
1113                 /* shared */
1114                 spin_unlock(&hc->lock);
1115                 return IRQ_NONE;
1116         }
1117         hc->irqcnt++;
1118
1119         if (hc->dch.debug & DEBUG_HW_DCHANNEL)
1120                 printk(KERN_DEBUG "HFC-PCI irq %x\n", val);
1121         val &= hc->hw.int_m1;
1122         if (val & 0x40) {       /* state machine irq */
1123                 exval = Read_hfc(hc, HFCPCI_STATES) & 0xf;
1124                 if (hc->dch.debug & DEBUG_HW_DCHANNEL)
1125                         printk(KERN_DEBUG "ph_state chg %d->%d\n",
1126                                 hc->dch.state, exval);
1127                 hc->dch.state = exval;
1128                 schedule_event(&hc->dch, FLG_PHCHANGE);
1129                 val &= ~0x40;
1130         }
1131         if (val & 0x80) {       /* timer irq */
1132                 if (hc->hw.protocol == ISDN_P_NT_S0) {
1133                         if ((--hc->hw.nt_timer) < 0)
1134                                 schedule_event(&hc->dch, FLG_PHCHANGE);
1135                 }
1136                 val &= ~0x80;
1137                 Write_hfc(hc, HFCPCI_CTMT, hc->hw.ctmt | HFCPCI_CLTIMER);
1138         }
1139         if (val & 0x08) {
1140                 bch = Sel_BCS(hc, hc->hw.bswapped ? 2 : 1);
1141                 if (bch)
1142                         main_rec_hfcpci(bch);
1143                 else if (hc->dch.debug)
1144                         printk(KERN_DEBUG "hfcpci spurious 0x08 IRQ\n");
1145         }
1146         if (val & 0x10) {
1147                 bch = Sel_BCS(hc, 2);
1148                 if (bch)
1149                         main_rec_hfcpci(bch);
1150                 else if (hc->dch.debug)
1151                         printk(KERN_DEBUG "hfcpci spurious 0x10 IRQ\n");
1152         }
1153         if (val & 0x01) {
1154                 bch = Sel_BCS(hc, hc->hw.bswapped ? 2 : 1);
1155                 if (bch)
1156                         tx_birq(bch);
1157                 else if (hc->dch.debug)
1158                         printk(KERN_DEBUG "hfcpci spurious 0x01 IRQ\n");
1159         }
1160         if (val & 0x02) {
1161                 bch = Sel_BCS(hc, 2);
1162                 if (bch)
1163                         tx_birq(bch);
1164                 else if (hc->dch.debug)
1165                         printk(KERN_DEBUG "hfcpci spurious 0x02 IRQ\n");
1166         }
1167         if (val & 0x20)
1168                 receive_dmsg(hc);
1169         if (val & 0x04) {       /* dframe transmitted */
1170                 if (test_and_clear_bit(FLG_BUSY_TIMER, &hc->dch.Flags))
1171                         del_timer(&hc->dch.timer);
1172                 tx_dirq(&hc->dch);
1173         }
1174         spin_unlock(&hc->lock);
1175         return IRQ_HANDLED;
1176 }
1177
1178 /*
1179  * timer callback for D-chan busy resolution. Currently no function
1180  */
1181 static void
1182 hfcpci_dbusy_timer(struct hfc_pci *hc)
1183 {
1184 }
1185
1186 /*
1187  * activate/deactivate hardware for selected channels and mode
1188  */
1189 static int
1190 mode_hfcpci(struct bchannel *bch, int bc, int protocol)
1191 {
1192         struct hfc_pci  *hc = bch->hw;
1193         int             fifo2;
1194         u_char          rx_slot = 0, tx_slot = 0, pcm_mode;
1195
1196         if (bch->debug & DEBUG_HW_BCHANNEL)
1197                 printk(KERN_DEBUG
1198                     "HFCPCI bchannel protocol %x-->%x ch %x-->%x\n",
1199                     bch->state, protocol, bch->nr, bc);
1200
1201         fifo2 = bc;
1202         pcm_mode = (bc>>24) & 0xff;
1203         if (pcm_mode) { /* PCM SLOT USE */
1204                 if (!test_bit(HFC_CFG_PCM, &hc->cfg))
1205                         printk(KERN_WARNING
1206                             "%s: pcm channel id without HFC_CFG_PCM\n",
1207                             __func__);
1208                 rx_slot = (bc>>8) & 0xff;
1209                 tx_slot = (bc>>16) & 0xff;
1210                 bc = bc & 0xff;
1211         } else if (test_bit(HFC_CFG_PCM, &hc->cfg) &&
1212             (protocol > ISDN_P_NONE))
1213                 printk(KERN_WARNING "%s: no pcm channel id but HFC_CFG_PCM\n",
1214                     __func__);
1215         if (hc->chanlimit > 1) {
1216                 hc->hw.bswapped = 0;    /* B1 and B2 normal mode */
1217                 hc->hw.sctrl_e &= ~0x80;
1218         } else {
1219                 if (bc & 2) {
1220                         if (protocol != ISDN_P_NONE) {
1221                                 hc->hw.bswapped = 1; /* B1 and B2 exchanged */
1222                                 hc->hw.sctrl_e |= 0x80;
1223                         } else {
1224                                 hc->hw.bswapped = 0; /* B1 and B2 normal mode */
1225                                 hc->hw.sctrl_e &= ~0x80;
1226                         }
1227                         fifo2 = 1;
1228                 } else {
1229                         hc->hw.bswapped = 0;    /* B1 and B2 normal mode */
1230                         hc->hw.sctrl_e &= ~0x80;
1231                 }
1232         }
1233         switch (protocol) {
1234         case (-1): /* used for init */
1235                 bch->state = -1;
1236                 bch->nr = bc;
1237         case (ISDN_P_NONE):
1238                 if (bch->state == ISDN_P_NONE)
1239                         return 0;
1240                 if (bc & 2) {
1241                         hc->hw.sctrl &= ~SCTRL_B2_ENA;
1242                         hc->hw.sctrl_r &= ~SCTRL_B2_ENA;
1243                 } else {
1244                         hc->hw.sctrl &= ~SCTRL_B1_ENA;
1245                         hc->hw.sctrl_r &= ~SCTRL_B1_ENA;
1246                 }
1247                 if (fifo2 & 2) {
1248                         hc->hw.fifo_en &= ~HFCPCI_FIFOEN_B2;
1249                         hc->hw.int_m1 &= ~(HFCPCI_INTS_B2TRANS +
1250                                 HFCPCI_INTS_B2REC);
1251                 } else {
1252                         hc->hw.fifo_en &= ~HFCPCI_FIFOEN_B1;
1253                         hc->hw.int_m1 &= ~(HFCPCI_INTS_B1TRANS +
1254                                 HFCPCI_INTS_B1REC);
1255                 }
1256 #ifdef REVERSE_BITORDER
1257                 if (bch->nr & 2)
1258                         hc->hw.cirm &= 0x7f;
1259                 else
1260                         hc->hw.cirm &= 0xbf;
1261 #endif
1262                 bch->state = ISDN_P_NONE;
1263                 bch->nr = bc;
1264                 test_and_clear_bit(FLG_HDLC, &bch->Flags);
1265                 test_and_clear_bit(FLG_TRANSPARENT, &bch->Flags);
1266                 break;
1267         case (ISDN_P_B_RAW):
1268                 bch->state = protocol;
1269                 bch->nr = bc;
1270                 hfcpci_clear_fifo_rx(hc, (fifo2 & 2)?1:0);
1271                 hfcpci_clear_fifo_tx(hc, (fifo2 & 2)?1:0);
1272                 if (bc & 2) {
1273                         hc->hw.sctrl |= SCTRL_B2_ENA;
1274                         hc->hw.sctrl_r |= SCTRL_B2_ENA;
1275 #ifdef REVERSE_BITORDER
1276                         hc->hw.cirm |= 0x80;
1277 #endif
1278                 } else {
1279                         hc->hw.sctrl |= SCTRL_B1_ENA;
1280                         hc->hw.sctrl_r |= SCTRL_B1_ENA;
1281 #ifdef REVERSE_BITORDER
1282                         hc->hw.cirm |= 0x40;
1283 #endif
1284                 }
1285                 if (fifo2 & 2) {
1286                         hc->hw.fifo_en |= HFCPCI_FIFOEN_B2;
1287                         hc->hw.int_m1 |= (HFCPCI_INTS_B2TRANS +
1288                             HFCPCI_INTS_B2REC);
1289                         hc->hw.ctmt |= 2;
1290                         hc->hw.conn &= ~0x18;
1291                 } else {
1292                         hc->hw.fifo_en |= HFCPCI_FIFOEN_B1;
1293                         hc->hw.int_m1 |= (HFCPCI_INTS_B1TRANS +
1294                             HFCPCI_INTS_B1REC);
1295                         hc->hw.ctmt |= 1;
1296                         hc->hw.conn &= ~0x03;
1297                 }
1298                 test_and_set_bit(FLG_TRANSPARENT, &bch->Flags);
1299                 break;
1300         case (ISDN_P_B_HDLC):
1301                 bch->state = protocol;
1302                 bch->nr = bc;
1303                 hfcpci_clear_fifo_rx(hc, (fifo2 & 2)?1:0);
1304                 hfcpci_clear_fifo_tx(hc, (fifo2 & 2)?1:0);
1305                 if (bc & 2) {
1306                         hc->hw.sctrl |= SCTRL_B2_ENA;
1307                         hc->hw.sctrl_r |= SCTRL_B2_ENA;
1308                 } else {
1309                         hc->hw.sctrl |= SCTRL_B1_ENA;
1310                         hc->hw.sctrl_r |= SCTRL_B1_ENA;
1311                 }
1312                 if (fifo2 & 2) {
1313                         hc->hw.last_bfifo_cnt[1] = 0;
1314                         hc->hw.fifo_en |= HFCPCI_FIFOEN_B2;
1315                         hc->hw.int_m1 |= (HFCPCI_INTS_B2TRANS +
1316                             HFCPCI_INTS_B2REC);
1317                         hc->hw.ctmt &= ~2;
1318                         hc->hw.conn &= ~0x18;
1319                 } else {
1320                         hc->hw.last_bfifo_cnt[0] = 0;
1321                         hc->hw.fifo_en |= HFCPCI_FIFOEN_B1;
1322                         hc->hw.int_m1 |= (HFCPCI_INTS_B1TRANS +
1323                             HFCPCI_INTS_B1REC);
1324                         hc->hw.ctmt &= ~1;
1325                         hc->hw.conn &= ~0x03;
1326                 }
1327                 test_and_set_bit(FLG_HDLC, &bch->Flags);
1328                 break;
1329         default:
1330                 printk(KERN_DEBUG "prot not known %x\n", protocol);
1331                 return -ENOPROTOOPT;
1332         }
1333         if (test_bit(HFC_CFG_PCM, &hc->cfg)) {
1334                 if ((protocol == ISDN_P_NONE) ||
1335                         (protocol == -1)) {     /* init case */
1336                         rx_slot = 0;
1337                         tx_slot = 0;
1338                 } else {
1339                         if (test_bit(HFC_CFG_SW_DD_DU, &hc->cfg)) {
1340                                 rx_slot |= 0xC0;
1341                                 tx_slot |= 0xC0;
1342                         } else {
1343                                 rx_slot |= 0x80;
1344                                 tx_slot |= 0x80;
1345                         }
1346                 }
1347                 if (bc & 2) {
1348                         hc->hw.conn &= 0xc7;
1349                         hc->hw.conn |= 0x08;
1350                         printk(KERN_DEBUG "%s: Write_hfc: B2_SSL 0x%x\n",
1351                                 __func__, tx_slot);
1352                         printk(KERN_DEBUG "%s: Write_hfc: B2_RSL 0x%x\n",
1353                                 __func__, rx_slot);
1354                         Write_hfc(hc, HFCPCI_B2_SSL, tx_slot);
1355                         Write_hfc(hc, HFCPCI_B2_RSL, rx_slot);
1356                 } else {
1357                         hc->hw.conn &= 0xf8;
1358                         hc->hw.conn |= 0x01;
1359                         printk(KERN_DEBUG "%s: Write_hfc: B1_SSL 0x%x\n",
1360                                 __func__, tx_slot);
1361                         printk(KERN_DEBUG "%s: Write_hfc: B1_RSL 0x%x\n",
1362                                 __func__, rx_slot);
1363                         Write_hfc(hc, HFCPCI_B1_SSL, tx_slot);
1364                         Write_hfc(hc, HFCPCI_B1_RSL, rx_slot);
1365                 }
1366         }
1367         Write_hfc(hc, HFCPCI_SCTRL_E, hc->hw.sctrl_e);
1368         Write_hfc(hc, HFCPCI_INT_M1, hc->hw.int_m1);
1369         Write_hfc(hc, HFCPCI_FIFO_EN, hc->hw.fifo_en);
1370         Write_hfc(hc, HFCPCI_SCTRL, hc->hw.sctrl);
1371         Write_hfc(hc, HFCPCI_SCTRL_R, hc->hw.sctrl_r);
1372         Write_hfc(hc, HFCPCI_CTMT, hc->hw.ctmt);
1373         Write_hfc(hc, HFCPCI_CONNECT, hc->hw.conn);
1374 #ifdef REVERSE_BITORDER
1375         Write_hfc(hc, HFCPCI_CIRM, hc->hw.cirm);
1376 #endif
1377         return 0;
1378 }
1379
1380 static int
1381 set_hfcpci_rxtest(struct bchannel *bch, int protocol, int chan)
1382 {
1383         struct hfc_pci  *hc = bch->hw;
1384
1385         if (bch->debug & DEBUG_HW_BCHANNEL)
1386                 printk(KERN_DEBUG
1387                     "HFCPCI bchannel test rx protocol %x-->%x ch %x-->%x\n",
1388                     bch->state, protocol, bch->nr, chan);
1389         if (bch->nr != chan) {
1390                 printk(KERN_DEBUG
1391                     "HFCPCI rxtest wrong channel parameter %x/%x\n",
1392                     bch->nr, chan);
1393                 return -EINVAL;
1394         }
1395         switch (protocol) {
1396         case (ISDN_P_B_RAW):
1397                 bch->state = protocol;
1398                 hfcpci_clear_fifo_rx(hc, (chan & 2)?1:0);
1399                 if (chan & 2) {
1400                         hc->hw.sctrl_r |= SCTRL_B2_ENA;
1401                         hc->hw.fifo_en |= HFCPCI_FIFOEN_B2RX;
1402                         hc->hw.int_m1 |= HFCPCI_INTS_B2REC;
1403                         hc->hw.ctmt |= 2;
1404                         hc->hw.conn &= ~0x18;
1405 #ifdef REVERSE_BITORDER
1406                         hc->hw.cirm |= 0x80;
1407 #endif
1408                 } else {
1409                         hc->hw.sctrl_r |= SCTRL_B1_ENA;
1410                         hc->hw.fifo_en |= HFCPCI_FIFOEN_B1RX;
1411                         hc->hw.int_m1 |= HFCPCI_INTS_B1REC;
1412                         hc->hw.ctmt |= 1;
1413                         hc->hw.conn &= ~0x03;
1414 #ifdef REVERSE_BITORDER
1415                         hc->hw.cirm |= 0x40;
1416 #endif
1417                 }
1418                 break;
1419         case (ISDN_P_B_HDLC):
1420                 bch->state = protocol;
1421                 hfcpci_clear_fifo_rx(hc, (chan & 2)?1:0);
1422                 if (chan & 2) {
1423                         hc->hw.sctrl_r |= SCTRL_B2_ENA;
1424                         hc->hw.last_bfifo_cnt[1] = 0;
1425                         hc->hw.fifo_en |= HFCPCI_FIFOEN_B2RX;
1426                         hc->hw.int_m1 |= HFCPCI_INTS_B2REC;
1427                         hc->hw.ctmt &= ~2;
1428                         hc->hw.conn &= ~0x18;
1429                 } else {
1430                         hc->hw.sctrl_r |= SCTRL_B1_ENA;
1431                         hc->hw.last_bfifo_cnt[0] = 0;
1432                         hc->hw.fifo_en |= HFCPCI_FIFOEN_B1RX;
1433                         hc->hw.int_m1 |= HFCPCI_INTS_B1REC;
1434                         hc->hw.ctmt &= ~1;
1435                         hc->hw.conn &= ~0x03;
1436                 }
1437                 break;
1438         default:
1439                 printk(KERN_DEBUG "prot not known %x\n", protocol);
1440                 return -ENOPROTOOPT;
1441         }
1442         Write_hfc(hc, HFCPCI_INT_M1, hc->hw.int_m1);
1443         Write_hfc(hc, HFCPCI_FIFO_EN, hc->hw.fifo_en);
1444         Write_hfc(hc, HFCPCI_SCTRL_R, hc->hw.sctrl_r);
1445         Write_hfc(hc, HFCPCI_CTMT, hc->hw.ctmt);
1446         Write_hfc(hc, HFCPCI_CONNECT, hc->hw.conn);
1447 #ifdef REVERSE_BITORDER
1448         Write_hfc(hc, HFCPCI_CIRM, hc->hw.cirm);
1449 #endif
1450         return 0;
1451 }
1452
1453 static void
1454 deactivate_bchannel(struct bchannel *bch)
1455 {
1456         struct hfc_pci  *hc = bch->hw;
1457         u_long          flags;
1458
1459         spin_lock_irqsave(&hc->lock, flags);
1460         if (test_and_clear_bit(FLG_TX_NEXT, &bch->Flags)) {
1461                 dev_kfree_skb(bch->next_skb);
1462                 bch->next_skb = NULL;
1463         }
1464         if (bch->tx_skb) {
1465                 dev_kfree_skb(bch->tx_skb);
1466                 bch->tx_skb = NULL;
1467         }
1468         bch->tx_idx = 0;
1469         if (bch->rx_skb) {
1470                 dev_kfree_skb(bch->rx_skb);
1471                 bch->rx_skb = NULL;
1472         }
1473         mode_hfcpci(bch, bch->nr, ISDN_P_NONE);
1474         test_and_clear_bit(FLG_ACTIVE, &bch->Flags);
1475         test_and_clear_bit(FLG_TX_BUSY, &bch->Flags);
1476         spin_unlock_irqrestore(&hc->lock, flags);
1477 }
1478
1479 /*
1480  * Layer 1 B-channel hardware access
1481  */
1482 static int
1483 channel_bctrl(struct bchannel *bch, struct mISDN_ctrl_req *cq)
1484 {
1485         int                     ret = 0;
1486
1487         switch (cq->op) {
1488         case MISDN_CTRL_GETOP:
1489                 cq->op = 0;
1490                 break;
1491         default:
1492                 printk(KERN_WARNING "%s: unknown Op %x\n", __func__, cq->op);
1493                 ret = -EINVAL;
1494                 break;
1495         }
1496         return ret;
1497 }
1498 static int
1499 hfc_bctrl(struct mISDNchannel *ch, u_int cmd, void *arg)
1500 {
1501         struct bchannel *bch = container_of(ch, struct bchannel, ch);
1502         struct hfc_pci  *hc = bch->hw;
1503         int             ret = -EINVAL;
1504         u_long          flags;
1505
1506         if (bch->debug & DEBUG_HW)
1507                 printk(KERN_DEBUG "%s: cmd:%x %p\n", __func__, cmd, arg);
1508         switch (cmd) {
1509         case HW_TESTRX_RAW:
1510                 spin_lock_irqsave(&hc->lock, flags);
1511                 ret = set_hfcpci_rxtest(bch, ISDN_P_B_RAW, (int)(long)arg);
1512                 spin_unlock_irqrestore(&hc->lock, flags);
1513                 break;
1514         case HW_TESTRX_HDLC:
1515                 spin_lock_irqsave(&hc->lock, flags);
1516                 ret = set_hfcpci_rxtest(bch, ISDN_P_B_HDLC, (int)(long)arg);
1517                 spin_unlock_irqrestore(&hc->lock, flags);
1518                 break;
1519         case HW_TESTRX_OFF:
1520                 spin_lock_irqsave(&hc->lock, flags);
1521                 mode_hfcpci(bch, bch->nr, ISDN_P_NONE);
1522                 spin_unlock_irqrestore(&hc->lock, flags);
1523                 ret = 0;
1524                 break;
1525         case CLOSE_CHANNEL:
1526                 test_and_clear_bit(FLG_OPEN, &bch->Flags);
1527                 if (test_bit(FLG_ACTIVE, &bch->Flags))
1528                         deactivate_bchannel(bch);
1529                 ch->protocol = ISDN_P_NONE;
1530                 ch->peer = NULL;
1531                 module_put(THIS_MODULE);
1532                 ret = 0;
1533                 break;
1534         case CONTROL_CHANNEL:
1535                 ret = channel_bctrl(bch, arg);
1536                 break;
1537         default:
1538                 printk(KERN_WARNING "%s: unknown prim(%x)\n",
1539                         __func__, cmd);
1540         }
1541         return ret;
1542 }
1543
1544 /*
1545  * Layer2 -> Layer 1 Dchannel data
1546  */
1547 static int
1548 hfcpci_l2l1D(struct mISDNchannel *ch, struct sk_buff *skb)
1549 {
1550         struct mISDNdevice      *dev = container_of(ch, struct mISDNdevice, D);
1551         struct dchannel         *dch = container_of(dev, struct dchannel, dev);
1552         struct hfc_pci          *hc = dch->hw;
1553         int                     ret = -EINVAL;
1554         struct mISDNhead        *hh = mISDN_HEAD_P(skb);
1555         unsigned int            id;
1556         u_long                  flags;
1557
1558         switch (hh->prim) {
1559         case PH_DATA_REQ:
1560                 spin_lock_irqsave(&hc->lock, flags);
1561                 ret = dchannel_senddata(dch, skb);
1562                 if (ret > 0) { /* direct TX */
1563                         id = hh->id; /* skb can be freed */
1564                         hfcpci_fill_dfifo(dch->hw);
1565                         ret = 0;
1566                         spin_unlock_irqrestore(&hc->lock, flags);
1567                         queue_ch_frame(ch, PH_DATA_CNF, id, NULL);
1568                 } else
1569                         spin_unlock_irqrestore(&hc->lock, flags);
1570                 return ret;
1571         case PH_ACTIVATE_REQ:
1572                 spin_lock_irqsave(&hc->lock, flags);
1573                 if (hc->hw.protocol == ISDN_P_NT_S0) {
1574                         ret = 0;
1575                         if (test_bit(HFC_CFG_MASTER, &hc->cfg))
1576                                 hc->hw.mst_m |= HFCPCI_MASTER;
1577                         Write_hfc(hc, HFCPCI_MST_MODE, hc->hw.mst_m);
1578                         if (test_bit(FLG_ACTIVE, &dch->Flags)) {
1579                                 spin_unlock_irqrestore(&hc->lock, flags);
1580                                 _queue_data(&dch->dev.D, PH_ACTIVATE_IND,
1581                                     MISDN_ID_ANY, 0, NULL, GFP_ATOMIC);
1582                                 break;
1583                         }
1584                         test_and_set_bit(FLG_L2_ACTIVATED, &dch->Flags);
1585                         Write_hfc(hc, HFCPCI_STATES, HFCPCI_ACTIVATE |
1586                             HFCPCI_DO_ACTION | 1);
1587                 } else
1588                         ret = l1_event(dch->l1, hh->prim);
1589                 spin_unlock_irqrestore(&hc->lock, flags);
1590                 break;
1591         case PH_DEACTIVATE_REQ:
1592                 test_and_clear_bit(FLG_L2_ACTIVATED, &dch->Flags);
1593                 spin_lock_irqsave(&hc->lock, flags);
1594                 if (hc->hw.protocol == ISDN_P_NT_S0) {
1595                         /* prepare deactivation */
1596                         Write_hfc(hc, HFCPCI_STATES, 0x40);
1597                         skb_queue_purge(&dch->squeue);
1598                         if (dch->tx_skb) {
1599                                 dev_kfree_skb(dch->tx_skb);
1600                                 dch->tx_skb = NULL;
1601                         }
1602                         dch->tx_idx = 0;
1603                         if (dch->rx_skb) {
1604                                 dev_kfree_skb(dch->rx_skb);
1605                                 dch->rx_skb = NULL;
1606                         }
1607                         test_and_clear_bit(FLG_TX_BUSY, &dch->Flags);
1608                         if (test_and_clear_bit(FLG_BUSY_TIMER, &dch->Flags))
1609                                 del_timer(&dch->timer);
1610 #ifdef FIXME
1611                         if (test_and_clear_bit(FLG_L1_BUSY, &dch->Flags))
1612                                 dchannel_sched_event(&hc->dch, D_CLEARBUSY);
1613 #endif
1614                         hc->hw.mst_m &= ~HFCPCI_MASTER;
1615                         Write_hfc(hc, HFCPCI_MST_MODE, hc->hw.mst_m);
1616                         ret = 0;
1617                 } else {
1618                         ret = l1_event(dch->l1, hh->prim);
1619                 }
1620                 spin_unlock_irqrestore(&hc->lock, flags);
1621                 break;
1622         }
1623         if (!ret)
1624                 dev_kfree_skb(skb);
1625         return ret;
1626 }
1627
1628 /*
1629  * Layer2 -> Layer 1 Bchannel data
1630  */
1631 static int
1632 hfcpci_l2l1B(struct mISDNchannel *ch, struct sk_buff *skb)
1633 {
1634         struct bchannel         *bch = container_of(ch, struct bchannel, ch);
1635         struct hfc_pci          *hc = bch->hw;
1636         int                     ret = -EINVAL;
1637         struct mISDNhead        *hh = mISDN_HEAD_P(skb);
1638         unsigned int            id;
1639         u_long                  flags;
1640
1641         switch (hh->prim) {
1642         case PH_DATA_REQ:
1643                 spin_lock_irqsave(&hc->lock, flags);
1644                 ret = bchannel_senddata(bch, skb);
1645                 if (ret > 0) { /* direct TX */
1646                         id = hh->id; /* skb can be freed */
1647                         hfcpci_fill_fifo(bch);
1648                         ret = 0;
1649                         spin_unlock_irqrestore(&hc->lock, flags);
1650                         if (!test_bit(FLG_TRANSPARENT, &bch->Flags))
1651                                 queue_ch_frame(ch, PH_DATA_CNF, id, NULL);
1652                 } else
1653                         spin_unlock_irqrestore(&hc->lock, flags);
1654                 return ret;
1655         case PH_ACTIVATE_REQ:
1656                 spin_lock_irqsave(&hc->lock, flags);
1657                 if (!test_and_set_bit(FLG_ACTIVE, &bch->Flags))
1658                         ret = mode_hfcpci(bch, bch->nr, ch->protocol);
1659                 else
1660                         ret = 0;
1661                 spin_unlock_irqrestore(&hc->lock, flags);
1662                 if (!ret)
1663                         _queue_data(ch, PH_ACTIVATE_IND, MISDN_ID_ANY, 0,
1664                                 NULL, GFP_KERNEL);
1665                 break;
1666         case PH_DEACTIVATE_REQ:
1667                 deactivate_bchannel(bch);
1668                 _queue_data(ch, PH_DEACTIVATE_IND, MISDN_ID_ANY, 0,
1669                         NULL, GFP_KERNEL);
1670                 ret = 0;
1671                 break;
1672         }
1673         if (!ret)
1674                 dev_kfree_skb(skb);
1675         return ret;
1676 }
1677
1678 /*
1679  * called for card init message
1680  */
1681
1682 void
1683 inithfcpci(struct hfc_pci *hc)
1684 {
1685         printk(KERN_DEBUG "inithfcpci: entered\n");
1686         hc->dch.timer.function = (void *) hfcpci_dbusy_timer;
1687         hc->dch.timer.data = (long) &hc->dch;
1688         init_timer(&hc->dch.timer);
1689         hc->chanlimit = 2;
1690         mode_hfcpci(&hc->bch[0], 1, -1);
1691         mode_hfcpci(&hc->bch[1], 2, -1);
1692 }
1693
1694
1695 static int
1696 init_card(struct hfc_pci *hc)
1697 {
1698         int     cnt = 3;
1699         u_long  flags;
1700
1701         printk(KERN_DEBUG "init_card: entered\n");
1702
1703
1704         spin_lock_irqsave(&hc->lock, flags);
1705         disable_hwirq(hc);
1706         spin_unlock_irqrestore(&hc->lock, flags);
1707         if (request_irq(hc->irq, hfcpci_int, IRQF_SHARED, "HFC PCI", hc)) {
1708                 printk(KERN_WARNING
1709                     "mISDN: couldn't get interrupt %d\n", hc->irq);
1710                 return -EIO;
1711         }
1712         spin_lock_irqsave(&hc->lock, flags);
1713         reset_hfcpci(hc);
1714         while (cnt) {
1715                 inithfcpci(hc);
1716                 /*
1717                  * Finally enable IRQ output
1718                  * this is only allowed, if an IRQ routine is allready
1719                  * established for this HFC, so don't do that earlier
1720                  */
1721                 enable_hwirq(hc);
1722                 spin_unlock_irqrestore(&hc->lock, flags);
1723                 /* Timeout 80ms */
1724                 current->state = TASK_UNINTERRUPTIBLE;
1725                 schedule_timeout((80*HZ)/1000);
1726                 printk(KERN_INFO "HFC PCI: IRQ %d count %d\n",
1727                         hc->irq, hc->irqcnt);
1728                 /* now switch timer interrupt off */
1729                 spin_lock_irqsave(&hc->lock, flags);
1730                 hc->hw.int_m1 &= ~HFCPCI_INTS_TIMER;
1731                 Write_hfc(hc, HFCPCI_INT_M1, hc->hw.int_m1);
1732                 /* reinit mode reg */
1733                 Write_hfc(hc, HFCPCI_MST_MODE, hc->hw.mst_m);
1734                 if (!hc->irqcnt) {
1735                         printk(KERN_WARNING
1736                             "HFC PCI: IRQ(%d) getting no interrupts "
1737                             "during init %d\n", hc->irq, 4 - cnt);
1738                         if (cnt == 1) {
1739                                 spin_unlock_irqrestore(&hc->lock, flags);
1740                                 return -EIO;
1741                         } else {
1742                                 reset_hfcpci(hc);
1743                                 cnt--;
1744                         }
1745                 } else {
1746                         spin_unlock_irqrestore(&hc->lock, flags);
1747                         hc->initdone = 1;
1748                         return 0;
1749                 }
1750         }
1751         disable_hwirq(hc);
1752         spin_unlock_irqrestore(&hc->lock, flags);
1753         free_irq(hc->irq, hc);
1754         return -EIO;
1755 }
1756
1757 static int
1758 channel_ctrl(struct hfc_pci *hc, struct mISDN_ctrl_req *cq)
1759 {
1760         int     ret = 0;
1761         u_char  slot;
1762
1763         switch (cq->op) {
1764         case MISDN_CTRL_GETOP:
1765                 cq->op = MISDN_CTRL_LOOP | MISDN_CTRL_CONNECT |
1766                     MISDN_CTRL_DISCONNECT;
1767                 break;
1768         case MISDN_CTRL_LOOP:
1769                 /* channel 0 disabled loop */
1770                 if (cq->channel < 0 || cq->channel > 2) {
1771                         ret = -EINVAL;
1772                         break;
1773                 }
1774                 if (cq->channel & 1) {
1775                         if (test_bit(HFC_CFG_SW_DD_DU, &hc->cfg))
1776                                 slot = 0xC0;
1777                         else
1778                                 slot = 0x80;
1779                         printk(KERN_DEBUG "%s: Write_hfc: B1_SSL/RSL 0x%x\n",
1780                             __func__, slot);
1781                         Write_hfc(hc, HFCPCI_B1_SSL, slot);
1782                         Write_hfc(hc, HFCPCI_B1_RSL, slot);
1783                         hc->hw.conn = (hc->hw.conn & ~7) | 6;
1784                         Write_hfc(hc, HFCPCI_CONNECT, hc->hw.conn);
1785                 }
1786                 if (cq->channel & 2) {
1787                         if (test_bit(HFC_CFG_SW_DD_DU, &hc->cfg))
1788                                 slot = 0xC1;
1789                         else
1790                                 slot = 0x81;
1791                         printk(KERN_DEBUG "%s: Write_hfc: B2_SSL/RSL 0x%x\n",
1792                             __func__, slot);
1793                         Write_hfc(hc, HFCPCI_B2_SSL, slot);
1794                         Write_hfc(hc, HFCPCI_B2_RSL, slot);
1795                         hc->hw.conn = (hc->hw.conn & ~0x38) | 0x30;
1796                         Write_hfc(hc, HFCPCI_CONNECT, hc->hw.conn);
1797                 }
1798                 if (cq->channel & 3)
1799                         hc->hw.trm |= 0x80;     /* enable IOM-loop */
1800                 else {
1801                         hc->hw.conn = (hc->hw.conn & ~0x3f) | 0x09;
1802                         Write_hfc(hc, HFCPCI_CONNECT, hc->hw.conn);
1803                         hc->hw.trm &= 0x7f;     /* disable IOM-loop */
1804                 }
1805                 Write_hfc(hc, HFCPCI_TRM, hc->hw.trm);
1806                 break;
1807         case MISDN_CTRL_CONNECT:
1808                 if (cq->channel == cq->p1) {
1809                         ret = -EINVAL;
1810                         break;
1811                 }
1812                 if (cq->channel < 1 || cq->channel > 2 ||
1813                     cq->p1 < 1 || cq->p1 > 2) {
1814                         ret = -EINVAL;
1815                         break;
1816                 }
1817                 if (test_bit(HFC_CFG_SW_DD_DU, &hc->cfg))
1818                         slot = 0xC0;
1819                 else
1820                         slot = 0x80;
1821                 printk(KERN_DEBUG "%s: Write_hfc: B1_SSL/RSL 0x%x\n",
1822                     __func__, slot);
1823                 Write_hfc(hc, HFCPCI_B1_SSL, slot);
1824                 Write_hfc(hc, HFCPCI_B2_RSL, slot);
1825                 if (test_bit(HFC_CFG_SW_DD_DU, &hc->cfg))
1826                         slot = 0xC1;
1827                 else
1828                         slot = 0x81;
1829                 printk(KERN_DEBUG "%s: Write_hfc: B2_SSL/RSL 0x%x\n",
1830                     __func__, slot);
1831                 Write_hfc(hc, HFCPCI_B2_SSL, slot);
1832                 Write_hfc(hc, HFCPCI_B1_RSL, slot);
1833                 hc->hw.conn = (hc->hw.conn & ~0x3f) | 0x36;
1834                 Write_hfc(hc, HFCPCI_CONNECT, hc->hw.conn);
1835                 hc->hw.trm |= 0x80;
1836                 Write_hfc(hc, HFCPCI_TRM, hc->hw.trm);
1837                 break;
1838         case MISDN_CTRL_DISCONNECT:
1839                 hc->hw.conn = (hc->hw.conn & ~0x3f) | 0x09;
1840                 Write_hfc(hc, HFCPCI_CONNECT, hc->hw.conn);
1841                 hc->hw.trm &= 0x7f;     /* disable IOM-loop */
1842                 break;
1843         default:
1844                 printk(KERN_WARNING "%s: unknown Op %x\n",
1845                     __func__, cq->op);
1846                 ret = -EINVAL;
1847                 break;
1848         }
1849         return ret;
1850 }
1851
1852 static int
1853 open_dchannel(struct hfc_pci *hc, struct mISDNchannel *ch,
1854     struct channel_req *rq)
1855 {
1856         int err = 0;
1857
1858         if (debug & DEBUG_HW_OPEN)
1859                 printk(KERN_DEBUG "%s: dev(%d) open from %p\n", __func__,
1860                     hc->dch.dev.id, __builtin_return_address(0));
1861         if (rq->protocol == ISDN_P_NONE)
1862                 return -EINVAL;
1863         if (!hc->initdone) {
1864                 if (rq->protocol == ISDN_P_TE_S0) {
1865                         err = create_l1(&hc->dch, hfc_l1callback);
1866                         if (err)
1867                                 return err;
1868                 }
1869                 hc->hw.protocol = rq->protocol;
1870                 ch->protocol = rq->protocol;
1871                 err = init_card(hc);
1872                 if (err)
1873                         return err;
1874         } else {
1875                 if (rq->protocol != ch->protocol) {
1876                         if (hc->hw.protocol == ISDN_P_TE_S0)
1877                                 l1_event(hc->dch.l1, CLOSE_CHANNEL);
1878                         hc->hw.protocol = rq->protocol;
1879                         ch->protocol = rq->protocol;
1880                         hfcpci_setmode(hc);
1881                 }
1882         }
1883
1884         if (((ch->protocol == ISDN_P_NT_S0) && (hc->dch.state == 3)) ||
1885             ((ch->protocol == ISDN_P_TE_S0) && (hc->dch.state == 7))) {
1886                 _queue_data(ch, PH_ACTIVATE_IND, MISDN_ID_ANY,
1887                     0, NULL, GFP_KERNEL);
1888         }
1889         rq->ch = ch;
1890         if (!try_module_get(THIS_MODULE))
1891                 printk(KERN_WARNING "%s:cannot get module\n", __func__);
1892         return 0;
1893 }
1894
1895 static int
1896 open_bchannel(struct hfc_pci *hc, struct channel_req *rq)
1897 {
1898         struct bchannel         *bch;
1899
1900         if (rq->adr.channel > 2)
1901                 return -EINVAL;
1902         if (rq->protocol == ISDN_P_NONE)
1903                 return -EINVAL;
1904         bch = &hc->bch[rq->adr.channel - 1];
1905         if (test_and_set_bit(FLG_OPEN, &bch->Flags))
1906                 return -EBUSY; /* b-channel can be only open once */
1907         bch->ch.protocol = rq->protocol;
1908         rq->ch = &bch->ch; /* TODO: E-channel */
1909         if (!try_module_get(THIS_MODULE))
1910                 printk(KERN_WARNING "%s:cannot get module\n", __func__);
1911         return 0;
1912 }
1913
1914 /*
1915  * device control function
1916  */
1917 static int
1918 hfc_dctrl(struct mISDNchannel *ch, u_int cmd, void *arg)
1919 {
1920         struct mISDNdevice      *dev = container_of(ch, struct mISDNdevice, D);
1921         struct dchannel         *dch = container_of(dev, struct dchannel, dev);
1922         struct hfc_pci          *hc = dch->hw;
1923         struct channel_req      *rq;
1924         int                     err = 0;
1925
1926         if (dch->debug & DEBUG_HW)
1927                 printk(KERN_DEBUG "%s: cmd:%x %p\n",
1928                     __func__, cmd, arg);
1929         switch (cmd) {
1930         case OPEN_CHANNEL:
1931                 rq = arg;
1932                 if (rq->adr.channel == 0)
1933                         err = open_dchannel(hc, ch, rq);
1934                 else
1935                         err = open_bchannel(hc, rq);
1936                 break;
1937         case CLOSE_CHANNEL:
1938                 if (debug & DEBUG_HW_OPEN)
1939                         printk(KERN_DEBUG "%s: dev(%d) close from %p\n",
1940                             __func__, hc->dch.dev.id,
1941                             __builtin_return_address(0));
1942                 module_put(THIS_MODULE);
1943                 break;
1944         case CONTROL_CHANNEL:
1945                 err = channel_ctrl(hc, arg);
1946                 break;
1947         default:
1948                 if (dch->debug & DEBUG_HW)
1949                         printk(KERN_DEBUG "%s: unknown command %x\n",
1950                             __func__, cmd);
1951                 return -EINVAL;
1952         }
1953         return err;
1954 }
1955
1956 static int
1957 setup_hw(struct hfc_pci *hc)
1958 {
1959         void    *buffer;
1960
1961         printk(KERN_INFO "mISDN: HFC-PCI driver %s\n", hfcpci_revision);
1962         hc->hw.cirm = 0;
1963         hc->dch.state = 0;
1964         pci_set_master(hc->pdev);
1965         if (!hc->irq) {
1966                 printk(KERN_WARNING "HFC-PCI: No IRQ for PCI card found\n");
1967                 return 1;
1968         }
1969         hc->hw.pci_io = (char *)(ulong)hc->pdev->resource[1].start;
1970
1971         if (!hc->hw.pci_io) {
1972                 printk(KERN_WARNING "HFC-PCI: No IO-Mem for PCI card found\n");
1973                 return 1;
1974         }
1975         /* Allocate memory for FIFOS */
1976         /* the memory needs to be on a 32k boundary within the first 4G */
1977         pci_set_dma_mask(hc->pdev, 0xFFFF8000);
1978         buffer = pci_alloc_consistent(hc->pdev, 0x8000, &hc->hw.dmahandle);
1979         /* We silently assume the address is okay if nonzero */
1980         if (!buffer) {
1981                 printk(KERN_WARNING
1982                     "HFC-PCI: Error allocating memory for FIFO!\n");
1983                 return 1;
1984         }
1985         hc->hw.fifos = buffer;
1986         pci_write_config_dword(hc->pdev, 0x80, hc->hw.dmahandle);
1987         hc->hw.pci_io = ioremap((ulong) hc->hw.pci_io, 256);
1988         printk(KERN_INFO
1989                 "HFC-PCI: defined at mem %#lx fifo %#lx(%#lx) IRQ %d HZ %d\n",
1990                 (u_long) hc->hw.pci_io, (u_long) hc->hw.fifos,
1991                 (u_long) virt_to_bus(hc->hw.fifos),
1992                 hc->irq, HZ);
1993         /* enable memory mapped ports, disable busmaster */
1994         pci_write_config_word(hc->pdev, PCI_COMMAND, PCI_ENA_MEMIO);
1995         hc->hw.int_m2 = 0;
1996         disable_hwirq(hc);
1997         hc->hw.int_m1 = 0;
1998         Write_hfc(hc, HFCPCI_INT_M1, hc->hw.int_m1);
1999         /* At this point the needed PCI config is done */
2000         /* fifos are still not enabled */
2001         hc->hw.timer.function = (void *) hfcpci_Timer;
2002         hc->hw.timer.data = (long) hc;
2003         init_timer(&hc->hw.timer);
2004         /* default PCM master */
2005         test_and_set_bit(HFC_CFG_MASTER, &hc->cfg);
2006         return 0;
2007 }
2008
2009 static void
2010 release_card(struct hfc_pci *hc) {
2011         u_long  flags;
2012
2013         spin_lock_irqsave(&hc->lock, flags);
2014         hc->hw.int_m2 = 0; /* interrupt output off ! */
2015         disable_hwirq(hc);
2016         mode_hfcpci(&hc->bch[0], 1, ISDN_P_NONE);
2017         mode_hfcpci(&hc->bch[1], 2, ISDN_P_NONE);
2018         if (hc->dch.timer.function != NULL) {
2019                 del_timer(&hc->dch.timer);
2020                 hc->dch.timer.function = NULL;
2021         }
2022         spin_unlock_irqrestore(&hc->lock, flags);
2023         if (hc->hw.protocol == ISDN_P_TE_S0)
2024                 l1_event(hc->dch.l1, CLOSE_CHANNEL);
2025         if (hc->initdone)
2026                 free_irq(hc->irq, hc);
2027         release_io_hfcpci(hc); /* must release after free_irq! */
2028         mISDN_unregister_device(&hc->dch.dev);
2029         mISDN_freebchannel(&hc->bch[1]);
2030         mISDN_freebchannel(&hc->bch[0]);
2031         mISDN_freedchannel(&hc->dch);
2032         list_del(&hc->list);
2033         pci_set_drvdata(hc->pdev, NULL);
2034         kfree(hc);
2035 }
2036
2037 static int
2038 setup_card(struct hfc_pci *card)
2039 {
2040         int             err = -EINVAL;
2041         u_int           i;
2042         u_long          flags;
2043         char            name[MISDN_MAX_IDLEN];
2044
2045         if (HFC_cnt >= MAX_CARDS)
2046                 return -EINVAL; /* maybe better value */
2047
2048         card->dch.debug = debug;
2049         spin_lock_init(&card->lock);
2050         mISDN_initdchannel(&card->dch, MAX_DFRAME_LEN_L1, ph_state);
2051         card->dch.hw = card;
2052         card->dch.dev.Dprotocols = (1 << ISDN_P_TE_S0) | (1 << ISDN_P_NT_S0);
2053         card->dch.dev.Bprotocols = (1 << (ISDN_P_B_RAW & ISDN_P_B_MASK)) |
2054             (1 << (ISDN_P_B_HDLC & ISDN_P_B_MASK));
2055         card->dch.dev.D.send = hfcpci_l2l1D;
2056         card->dch.dev.D.ctrl = hfc_dctrl;
2057         card->dch.dev.nrbchan = 2;
2058         for (i = 0; i < 2; i++) {
2059                 card->bch[i].nr = i + 1;
2060                 test_and_set_bit(i + 1, &card->dch.dev.channelmap[0]);
2061                 card->bch[i].debug = debug;
2062                 mISDN_initbchannel(&card->bch[i], MAX_DATA_MEM);
2063                 card->bch[i].hw = card;
2064                 card->bch[i].ch.send = hfcpci_l2l1B;
2065                 card->bch[i].ch.ctrl = hfc_bctrl;
2066                 card->bch[i].ch.nr = i + 1;
2067                 list_add(&card->bch[i].ch.list, &card->dch.dev.bchannels);
2068         }
2069         err = setup_hw(card);
2070         if (err)
2071                 goto error;
2072         snprintf(name, MISDN_MAX_IDLEN - 1, "hfc-pci.%d", HFC_cnt + 1);
2073         err = mISDN_register_device(&card->dch.dev, name);
2074         if (err)
2075                 goto error;
2076         HFC_cnt++;
2077         write_lock_irqsave(&HFClock, flags);
2078         list_add_tail(&card->list, &HFClist);
2079         write_unlock_irqrestore(&HFClock, flags);
2080         printk(KERN_INFO "HFC %d cards installed\n", HFC_cnt);
2081         return 0;
2082 error:
2083         mISDN_freebchannel(&card->bch[1]);
2084         mISDN_freebchannel(&card->bch[0]);
2085         mISDN_freedchannel(&card->dch);
2086         kfree(card);
2087         return err;
2088 }
2089
2090 /* private data in the PCI devices list */
2091 struct _hfc_map {
2092         u_int   subtype;
2093         u_int   flag;
2094         char    *name;
2095 };
2096
2097 static const struct _hfc_map hfc_map[] =
2098 {
2099         {HFC_CCD_2BD0, 0, "CCD/Billion/Asuscom 2BD0"},
2100         {HFC_CCD_B000, 0, "Billion B000"},
2101         {HFC_CCD_B006, 0, "Billion B006"},
2102         {HFC_CCD_B007, 0, "Billion B007"},
2103         {HFC_CCD_B008, 0, "Billion B008"},
2104         {HFC_CCD_B009, 0, "Billion B009"},
2105         {HFC_CCD_B00A, 0, "Billion B00A"},
2106         {HFC_CCD_B00B, 0, "Billion B00B"},
2107         {HFC_CCD_B00C, 0, "Billion B00C"},
2108         {HFC_CCD_B100, 0, "Seyeon B100"},
2109         {HFC_CCD_B700, 0, "Primux II S0 B700"},
2110         {HFC_CCD_B701, 0, "Primux II S0 NT B701"},
2111         {HFC_ABOCOM_2BD1, 0, "Abocom/Magitek 2BD1"},
2112         {HFC_ASUS_0675, 0, "Asuscom/Askey 675"},
2113         {HFC_BERKOM_TCONCEPT, 0, "German telekom T-Concept"},
2114         {HFC_BERKOM_A1T, 0, "German telekom A1T"},
2115         {HFC_ANIGMA_MC145575, 0, "Motorola MC145575"},
2116         {HFC_ZOLTRIX_2BD0, 0, "Zoltrix 2BD0"},
2117         {HFC_DIGI_DF_M_IOM2_E, 0,
2118             "Digi International DataFire Micro V IOM2 (Europe)"},
2119         {HFC_DIGI_DF_M_E, 0,
2120             "Digi International DataFire Micro V (Europe)"},
2121         {HFC_DIGI_DF_M_IOM2_A, 0,
2122             "Digi International DataFire Micro V IOM2 (North America)"},
2123         {HFC_DIGI_DF_M_A, 0,
2124             "Digi International DataFire Micro V (North America)"},
2125         {HFC_SITECOM_DC105V2, 0, "Sitecom Connectivity DC-105 ISDN TA"},
2126         {},
2127 };
2128
2129 static struct pci_device_id hfc_ids[] =
2130 {
2131         {PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_2BD0,
2132                 PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[0]},
2133         {PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_B000,
2134                 PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[1]},
2135         {PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_B006,
2136                 PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[2]},
2137         {PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_B007,
2138                 PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[3]},
2139         {PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_B008,
2140                 PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[4]},
2141         {PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_B009,
2142                 PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[5]},
2143         {PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_B00A,
2144                 PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[6]},
2145         {PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_B00B,
2146                 PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[7]},
2147         {PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_B00C,
2148                 PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[8]},
2149         {PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_B100,
2150                 PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[9]},
2151         {PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_B700,
2152                 PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[10]},
2153         {PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_B701,
2154                 PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[11]},
2155         {PCI_VENDOR_ID_ABOCOM, PCI_DEVICE_ID_ABOCOM_2BD1,
2156                 PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[12]},
2157         {PCI_VENDOR_ID_ASUSTEK, PCI_DEVICE_ID_ASUSTEK_0675,
2158                 PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[13]},
2159         {PCI_VENDOR_ID_BERKOM, PCI_DEVICE_ID_BERKOM_T_CONCEPT,
2160                 PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[14]},
2161         {PCI_VENDOR_ID_BERKOM, PCI_DEVICE_ID_BERKOM_A1T,
2162                 PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[15]},
2163         {PCI_VENDOR_ID_ANIGMA, PCI_DEVICE_ID_ANIGMA_MC145575,
2164                 PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[16]},
2165         {PCI_VENDOR_ID_ZOLTRIX, PCI_DEVICE_ID_ZOLTRIX_2BD0,
2166                 PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[17]},
2167         {PCI_VENDOR_ID_DIGI, PCI_DEVICE_ID_DIGI_DF_M_IOM2_E,
2168                 PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[18]},
2169         {PCI_VENDOR_ID_DIGI, PCI_DEVICE_ID_DIGI_DF_M_E,
2170                 PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[19]},
2171         {PCI_VENDOR_ID_DIGI, PCI_DEVICE_ID_DIGI_DF_M_IOM2_A,
2172                 PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[20]},
2173         {PCI_VENDOR_ID_DIGI, PCI_DEVICE_ID_DIGI_DF_M_A,
2174                 PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[21]},
2175         {PCI_VENDOR_ID_SITECOM, PCI_DEVICE_ID_SITECOM_DC105V2,
2176                 PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[22]},
2177         {},
2178 };
2179
2180 static int __devinit
2181 hfc_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
2182 {
2183         int             err = -ENOMEM;
2184         struct hfc_pci  *card;
2185         struct _hfc_map *m = (struct _hfc_map *)ent->driver_data;
2186
2187         card = kzalloc(sizeof(struct hfc_pci), GFP_ATOMIC);
2188         if (!card) {
2189                 printk(KERN_ERR "No kmem for HFC card\n");
2190                 return err;
2191         }
2192         card->pdev = pdev;
2193         card->subtype = m->subtype;
2194         err = pci_enable_device(pdev);
2195         if (err) {
2196                 kfree(card);
2197                 return err;
2198         }
2199
2200         printk(KERN_INFO "mISDN_hfcpci: found adapter %s at %s\n",
2201                m->name, pci_name(pdev));
2202
2203         card->irq = pdev->irq;
2204         pci_set_drvdata(pdev, card);
2205         err = setup_card(card);
2206         if (err)
2207                 pci_set_drvdata(pdev, NULL);
2208         return err;
2209 }
2210
2211 static void __devexit
2212 hfc_remove_pci(struct pci_dev *pdev)
2213 {
2214         struct hfc_pci  *card = pci_get_drvdata(pdev);
2215         u_long          flags;
2216
2217         if (card) {
2218                 write_lock_irqsave(&HFClock, flags);
2219                 release_card(card);
2220                 write_unlock_irqrestore(&HFClock, flags);
2221         } else
2222                 if (debug)
2223                         printk(KERN_WARNING "%s: drvdata allready removed\n",
2224                             __func__);
2225 }
2226
2227
2228 static struct pci_driver hfc_driver = {
2229         .name = "hfcpci",
2230         .probe = hfc_probe,
2231         .remove = __devexit_p(hfc_remove_pci),
2232         .id_table = hfc_ids,
2233 };
2234
2235 static int __init
2236 HFC_init(void)
2237 {
2238         int             err;
2239
2240         err = pci_register_driver(&hfc_driver);
2241         return err;
2242 }
2243
2244 static void __exit
2245 HFC_cleanup(void)
2246 {
2247         struct hfc_pci  *card, *next;
2248
2249         list_for_each_entry_safe(card, next, &HFClist, list) {
2250                 release_card(card);
2251         }
2252         pci_unregister_driver(&hfc_driver);
2253 }
2254
2255 module_init(HFC_init);
2256 module_exit(HFC_cleanup);