drivers/scsi/atp870u.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  *  Copyright (C) 1997  Wu Ching Chen
   4  *  2.1.x update (C) 1998  Krzysztof G. Baranowski
   5  *  2.5.x update (C) 2002  Red Hat
   6  *  2.6.x update (C) 2004  Red Hat
   7  *
   8  * Marcelo Tosatti <marcelo@conectiva.com.br> : SMP fixes
   9  *
  10  * Wu Ching Chen : NULL pointer fixes  2000/06/02
  11  *                 support atp876 chip
  12  *                 enable 32 bit fifo transfer
  13  *                 support cdrom & remove device run ultra speed
  14  *                 fix disconnect bug  2000/12/21
  15  *                 support atp880 chip lvd u160 2001/05/15
  16  *                 fix prd table bug 2001/09/12 (7.1)
  17  *
  18  * atp885 support add by ACARD Hao Ping Lian 2005/01/05
  19  */
  20 #include <linux/module.h>
  21 #include <linux/init.h>
  22 #include <linux/interrupt.h>
  23 #include <linux/kernel.h>
  24 #include <linux/types.h>
  25 #include <linux/string.h>
  26 #include <linux/ioport.h>
  27 #include <linux/delay.h>
  28 #include <linux/proc_fs.h>
  29 #include <linux/spinlock.h>
  30 #include <linux/pci.h>
  31 #include <linux/blkdev.h>
  32 #include <linux/dma-mapping.h>
  33 #include <linux/slab.h>
  34 #include <asm/io.h>
  35
  36 #include <scsi/scsi.h>
  37 #include <scsi/scsi_cmnd.h>
  38 #include <scsi/scsi_device.h>
  39 #include <scsi/scsi_host.h>
  40
  41 #include "atp870u.h"
  42
  43 static struct scsi_host_template atp870u_template;
  44 static void send_s870(struct atp_unit *dev,unsigned char c);
  45 static void atp_is(struct atp_unit *dev, unsigned char c, bool wide_chip,
  46                    unsigned char lvdmode);
  47
  48 static inline void atp_writeb_base(struct atp_unit *atp, u8 reg, u8 val)
  49 {
  50         outb(val, atp->baseport + reg);
  51 }
  52
  53 static inline void atp_writew_base(struct atp_unit *atp, u8 reg, u16 val)
  54 {
  55         outw(val, atp->baseport + reg);
  56 }
  57
  58 static inline void atp_writeb_io(struct atp_unit *atp, u8 channel, u8 reg, u8 val)
  59 {
  60         outb(val, atp->ioport[channel] + reg);
  61 }
  62
  63 static inline void atp_writew_io(struct atp_unit *atp, u8 channel, u8 reg, u16 val)
  64 {
  65         outw(val, atp->ioport[channel] + reg);
  66 }
  67
  68 static inline void atp_writeb_pci(struct atp_unit *atp, u8 channel, u8 reg, u8 val)
  69 {
  70         outb(val, atp->pciport[channel] + reg);
  71 }
  72
  73 static inline void atp_writel_pci(struct atp_unit *atp, u8 channel, u8 reg, u32 val)
  74 {
  75         outl(val, atp->pciport[channel] + reg);
  76 }
  77
  78 static inline u8 atp_readb_base(struct atp_unit *atp, u8 reg)
  79 {
  80         return inb(atp->baseport + reg);
  81 }
  82
  83 static inline u16 atp_readw_base(struct atp_unit *atp, u8 reg)
  84 {
  85         return inw(atp->baseport + reg);
  86 }
  87
  88 static inline u32 atp_readl_base(struct atp_unit *atp, u8 reg)
  89 {
  90         return inl(atp->baseport + reg);
  91 }
  92
  93 static inline u8 atp_readb_io(struct atp_unit *atp, u8 channel, u8 reg)
  94 {
  95         return inb(atp->ioport[channel] + reg);
  96 }
  97
  98 static inline u16 atp_readw_io(struct atp_unit *atp, u8 channel, u8 reg)
  99 {
 100         return inw(atp->ioport[channel] + reg);
 101 }
 102
 103 static inline u8 atp_readb_pci(struct atp_unit *atp, u8 channel, u8 reg)
 104 {
 105         return inb(atp->pciport[channel] + reg);
 106 }
 107
 108 static inline bool is880(struct atp_unit *atp)
 109 {
 110         return atp->pdev->device == ATP880_DEVID1 ||
 111                atp->pdev->device == ATP880_DEVID2;
 112 }
 113
 114 static inline bool is885(struct atp_unit *atp)
 115 {
 116         return atp->pdev->device == ATP885_DEVID;
 117 }
 118
 119 static irqreturn_t atp870u_intr_handle(int irq, void *dev_id)
 120 {
 121         unsigned long flags;
 122         unsigned short int id;
 123         unsigned char i, j, c, target_id, lun,cmdp;
 124         unsigned char *prd;
 125         struct scsi_cmnd *workreq;
 126         unsigned long adrcnt, k;
 127 #ifdef ED_DBGP
 128         unsigned long l;
 129 #endif
 130         struct Scsi_Host *host = dev_id;
 131         struct atp_unit *dev = (struct atp_unit *)&host->hostdata;
 132
 133         for (c = 0; c < 2; c++) {
 134                 j = atp_readb_io(dev, c, 0x1f);
 135                 if ((j & 0x80) != 0)
 136                         break;
 137                 dev->in_int[c] = 0;
 138         }
 139         if ((j & 0x80) == 0)
 140                 return IRQ_NONE;
 141 #ifdef ED_DBGP
 142         printk("atp870u_intr_handle enter\n");
 143 #endif
 144         dev->in_int[c] = 1;
 145         cmdp = atp_readb_io(dev, c, 0x10);
 146         if (dev->working[c] != 0) {
 147                 if (is885(dev)) {
 148                         if ((atp_readb_io(dev, c, 0x16) & 0x80) == 0)
 149                                 atp_writeb_io(dev, c, 0x16,
 150                                               (atp_readb_io(dev, c, 0x16) | 0x80));
 151                 }
 152                 if ((atp_readb_pci(dev, c, 0x00) & 0x08) != 0)
 153                 {
 154                         for (k=0; k < 1000; k++) {
 155                                 if ((atp_readb_pci(dev, c, 2) & 0x08) == 0)
 156                                         break;
 157                                 if ((atp_readb_pci(dev, c, 2) & 0x01) == 0)
 158                                         break;
 159                         }
 160                 }
 161                 atp_writeb_pci(dev, c, 0, 0x00);
 162
 163                 i = atp_readb_io(dev, c, 0x17);
 164
 165                 if (is885(dev))
 166                         atp_writeb_pci(dev, c, 2, 0x06);
 167
 168                 target_id = atp_readb_io(dev, c, 0x15);
 169
 170                 /*
 171                  *      Remap wide devices onto id numbers
 172                  */
 173
 174                 if ((target_id & 0x40) != 0) {
 175                         target_id = (target_id & 0x07) | 0x08;
 176                 } else {
 177                         target_id &= 0x07;
 178                 }
 179
 180                 if ((j & 0x40) != 0) {
 181                      if (dev->last_cmd[c] == 0xff) {
 182                         dev->last_cmd[c] = target_id;
 183                      }
 184                      dev->last_cmd[c] |= 0x40;
 185                 }
 186                 if (is885(dev))
 187                         dev->r1f[c][target_id] |= j;
 188 #ifdef ED_DBGP
 189                 printk("atp870u_intr_handle status = %x\n",i);
 190 #endif
 191                 if (i == 0x85) {
 192                         if ((dev->last_cmd[c] & 0xf0) != 0x40) {
 193                            dev->last_cmd[c] = 0xff;
 194                         }
 195                         if (is885(dev)) {
 196                                 adrcnt = 0;
 197                                 ((unsigned char *) &adrcnt)[2] =
 198                                         atp_readb_io(dev, c, 0x12);
 199                                 ((unsigned char *) &adrcnt)[1] =
 200                                         atp_readb_io(dev, c, 0x13);
 201                                 ((unsigned char *) &adrcnt)[0] =
 202                                         atp_readb_io(dev, c, 0x14);
 203                                 if (dev->id[c][target_id].last_len != adrcnt) {
 204                                         k = dev->id[c][target_id].last_len;
 205                                         k -= adrcnt;
 206                                         dev->id[c][target_id].tran_len = k;
 207                                         dev->id[c][target_id].last_len = adrcnt;
 208                                 }
 209 #ifdef ED_DBGP
 210                                 printk("dev->id[c][target_id].last_len = %d "
 211                                        "dev->id[c][target_id].tran_len = %d\n",
 212                                        dev->id[c][target_id].last_len,
 213                                        dev->id[c][target_id].tran_len);
 214 #endif
 215                         }
 216
 217                         /*
 218                          *      Flip wide
 219                          */
 220                         if (dev->wide_id[c] != 0) {
 221                                 atp_writeb_io(dev, c, 0x1b, 0x01);
 222                                 while ((atp_readb_io(dev, c, 0x1b) & 0x01) != 0x01)
 223                                         atp_writeb_io(dev, c, 0x1b, 0x01);
 224                         }
 225                         /*
 226                          *      Issue more commands
 227                          */
 228                         spin_lock_irqsave(dev->host->host_lock, flags);
 229                         if (((dev->quhd[c] != dev->quend[c]) ||
 230                              (dev->last_cmd[c] != 0xff)) &&
 231                             (dev->in_snd[c] == 0)) {
 232 #ifdef ED_DBGP
 233                                 printk("Call sent_s870\n");
 234 #endif
 235                                 send_s870(dev,c);
 236                         }
 237                         spin_unlock_irqrestore(dev->host->host_lock, flags);
 238                         /*
 239                          *      Done
 240                          */
 241                         dev->in_int[c] = 0;
 242 #ifdef ED_DBGP
 243                                 printk("Status 0x85 return\n");
 244 #endif
 245                         return IRQ_HANDLED;
 246                 }
 247
 248                 if (i == 0x40) {
 249                      dev->last_cmd[c] |= 0x40;
 250                      dev->in_int[c] = 0;
 251                      return IRQ_HANDLED;
 252                 }
 253
 254                 if (i == 0x21) {
 255                         if ((dev->last_cmd[c] & 0xf0) != 0x40) {
 256                            dev->last_cmd[c] = 0xff;
 257                         }
 258                         adrcnt = 0;
 259                         ((unsigned char *) &adrcnt)[2] =
 260                                 atp_readb_io(dev, c, 0x12);
 261                         ((unsigned char *) &adrcnt)[1] =
 262                                 atp_readb_io(dev, c, 0x13);
 263                         ((unsigned char *) &adrcnt)[0] =
 264                                 atp_readb_io(dev, c, 0x14);
 265                         k = dev->id[c][target_id].last_len;
 266                         k -= adrcnt;
 267                         dev->id[c][target_id].tran_len = k;
 268                         dev->id[c][target_id].last_len = adrcnt;
 269                         atp_writeb_io(dev, c, 0x10, 0x41);
 270                         atp_writeb_io(dev, c, 0x18, 0x08);
 271                         dev->in_int[c] = 0;
 272                         return IRQ_HANDLED;
 273                 }
 274
 275                 if (is885(dev)) {
 276                         if ((i == 0x4c) || (i == 0x4d) || (i == 0x8c) || (i == 0x8d)) {
 277                                 if ((i == 0x4c) || (i == 0x8c))
 278                                         i=0x48;
 279                                 else
 280                                         i=0x49;
 281                         }
 282                 }
 283                 if ((i == 0x80) || (i == 0x8f)) {
 284 #ifdef ED_DBGP
 285                         printk(KERN_DEBUG "Device reselect\n");
 286 #endif
 287                         lun = 0;
 288                         if (cmdp == 0x44 || i == 0x80)
 289                                 lun = atp_readb_io(dev, c, 0x1d) & 0x07;
 290                         else {
 291                                 if ((dev->last_cmd[c] & 0xf0) != 0x40) {
 292                                    dev->last_cmd[c] = 0xff;
 293                                 }
 294                                 if (cmdp == 0x41) {
 295 #ifdef ED_DBGP
 296                                         printk("cmdp = 0x41\n");
 297 #endif
 298                                         adrcnt = 0;
 299                                         ((unsigned char *) &adrcnt)[2] =
 300                                                 atp_readb_io(dev, c, 0x12);
 301                                         ((unsigned char *) &adrcnt)[1] =
 302                                                 atp_readb_io(dev, c, 0x13);
 303                                         ((unsigned char *) &adrcnt)[0] =
 304                                                 atp_readb_io(dev, c, 0x14);
 305                                         k = dev->id[c][target_id].last_len;
 306                                         k -= adrcnt;
 307                                         dev->id[c][target_id].tran_len = k;
 308                                         dev->id[c][target_id].last_len = adrcnt;
 309                                         atp_writeb_io(dev, c, 0x18, 0x08);
 310                                         dev->in_int[c] = 0;
 311                                         return IRQ_HANDLED;
 312                                 } else {
 313 #ifdef ED_DBGP
 314                                         printk("cmdp != 0x41\n");
 315 #endif
 316                                         atp_writeb_io(dev, c, 0x10, 0x46);
 317                                         dev->id[c][target_id].dirct = 0x00;
 318                                         atp_writeb_io(dev, c, 0x12, 0x00);
 319                                         atp_writeb_io(dev, c, 0x13, 0x00);
 320                                         atp_writeb_io(dev, c, 0x14, 0x00);
 321                                         atp_writeb_io(dev, c, 0x18, 0x08);
 322                                         dev->in_int[c] = 0;
 323                                         return IRQ_HANDLED;
 324                                 }
 325                         }
 326                         if (dev->last_cmd[c] != 0xff) {
 327                            dev->last_cmd[c] |= 0x40;
 328                         }
 329                         if (is885(dev)) {
 330                                 j = atp_readb_base(dev, 0x29) & 0xfe;
 331                                 atp_writeb_base(dev, 0x29, j);
 332                         } else
 333                                 atp_writeb_io(dev, c, 0x10, 0x45);
 334
 335                         target_id = atp_readb_io(dev, c, 0x16);
 336                         /*
 337                          *      Remap wide identifiers
 338                          */
 339                         if ((target_id & 0x10) != 0) {
 340                                 target_id = (target_id & 0x07) | 0x08;
 341                         } else {
 342                                 target_id &= 0x07;
 343                         }
 344                         if (is885(dev))
 345                                 atp_writeb_io(dev, c, 0x10, 0x45);
 346                         workreq = dev->id[c][target_id].curr_req;
 347 #ifdef ED_DBGP
 348                         scmd_printk(KERN_DEBUG, workreq, "CDB");
 349                         for (l = 0; l < workreq->cmd_len; l++)
 350                                 printk(KERN_DEBUG " %x",workreq->cmnd[l]);
 351                         printk("\n");
 352 #endif
 353
 354                         atp_writeb_io(dev, c, 0x0f, lun);
 355                         atp_writeb_io(dev, c, 0x11, dev->id[c][target_id].devsp);
 356                         adrcnt = dev->id[c][target_id].tran_len;
 357                         k = dev->id[c][target_id].last_len;
 358
 359                         atp_writeb_io(dev, c, 0x12, ((unsigned char *) &k)[2]);
 360                         atp_writeb_io(dev, c, 0x13, ((unsigned char *) &k)[1]);
 361                         atp_writeb_io(dev, c, 0x14, ((unsigned char *) &k)[0]);
 362 #ifdef ED_DBGP
 363                         printk("k %x, k[0] 0x%x k[1] 0x%x k[2] 0x%x\n", k,
 364                                atp_readb_io(dev, c, 0x14),
 365                                atp_readb_io(dev, c, 0x13),
 366                                atp_readb_io(dev, c, 0x12));
 367 #endif
 368                         /* Remap wide */
 369                         j = target_id;
 370                         if (target_id > 7) {
 371                                 j = (j & 0x07) | 0x40;
 372                         }
 373                         /* Add direction */
 374                         j |= dev->id[c][target_id].dirct;
 375                         atp_writeb_io(dev, c, 0x15, j);
 376                         atp_writeb_io(dev, c, 0x16, 0x80);
 377
 378                         /* enable 32 bit fifo transfer */
 379                         if (is885(dev)) {
 380                                 i = atp_readb_pci(dev, c, 1) & 0xf3;
 381                                 //j=workreq->cmnd[0];
 382                                 if ((workreq->cmnd[0] == READ_6) ||
 383                                     (workreq->cmnd[0] == READ_10) ||
 384                                     (workreq->cmnd[0] == WRITE_6) ||
 385                                     (workreq->cmnd[0] == WRITE_10)) {
 386                                    i |= 0x0c;
 387                                 }
 388                                 atp_writeb_pci(dev, c, 1, i);
 389                         } else if (is880(dev)) {
 390                                 if ((workreq->cmnd[0] == READ_6) ||
 391                                     (workreq->cmnd[0] == READ_10) ||
 392                                     (workreq->cmnd[0] == WRITE_6) ||
 393                                     (workreq->cmnd[0] == WRITE_10))
 394                                         atp_writeb_base(dev, 0x3b,
 395                                                         (atp_readb_base(dev, 0x3b) & 0x3f) | 0xc0);
 396                                 else
 397                                         atp_writeb_base(dev, 0x3b,
 398                                                         atp_readb_base(dev, 0x3b) & 0x3f);
 399                         } else {
 400                                 if ((workreq->cmnd[0] == READ_6) ||
 401                                     (workreq->cmnd[0] == READ_10) ||
 402                                     (workreq->cmnd[0] == WRITE_6) ||
 403                                     (workreq->cmnd[0] == WRITE_10))
 404                                         atp_writeb_base(dev, 0x3a,
 405                                                         (atp_readb_base(dev, 0x3a) & 0xf3) | 0x08);
 406                                 else
 407                                         atp_writeb_base(dev, 0x3a,
 408                                                         atp_readb_base(dev, 0x3a) & 0xf3);
 409                         }
 410                         j = 0;
 411                         id = 1;
 412                         id = id << target_id;
 413                         /*
 414                          *      Is this a wide device
 415                          */
 416                         if ((id & dev->wide_id[c]) != 0) {
 417                                 j |= 0x01;
 418                         }
 419                         atp_writeb_io(dev, c, 0x1b, j);
 420                         while ((atp_readb_io(dev, c, 0x1b) & 0x01) != j)
 421                                 atp_writeb_io(dev, c, 0x1b, j);
 422                         if (dev->id[c][target_id].last_len == 0) {
 423                                 atp_writeb_io(dev, c, 0x18, 0x08);
 424                                 dev->in_int[c] = 0;
 425 #ifdef ED_DBGP
 426                                 printk("dev->id[c][target_id].last_len = 0\n");
 427 #endif
 428                                 return IRQ_HANDLED;
 429                         }
 430 #ifdef ED_DBGP
 431                         printk("target_id = %d adrcnt = %d\n",target_id,adrcnt);
 432 #endif
 433                         prd = dev->id[c][target_id].prd_pos;
 434                         while (adrcnt != 0) {
 435                                 id = ((unsigned short int *)prd)[2];
 436                                 if (id == 0) {
 437                                         k = 0x10000;
 438                                 } else {
 439                                         k = id;
 440                                 }
 441                                 if (k > adrcnt) {
 442                                         ((unsigned short int *)prd)[2] =
 443                                                 (unsigned short int)(k - adrcnt);
 444                                         ((unsigned long *)prd)[0] += adrcnt;
 445                                         adrcnt = 0;
 446                                         dev->id[c][target_id].prd_pos = prd;
 447                                 } else {
 448                                         adrcnt -= k;
 449                                         dev->id[c][target_id].prdaddr += 0x08;
 450                                         prd += 0x08;
 451                                         if (adrcnt == 0) {
 452                                                 dev->id[c][target_id].prd_pos = prd;
 453                                         }
 454                                 }
 455                         }
 456                         atp_writel_pci(dev, c, 0x04, dev->id[c][target_id].prdaddr);
 457 #ifdef ED_DBGP
 458                         printk("dev->id[%d][%d].prdaddr 0x%8x\n",
 459                                c, target_id, dev->id[c][target_id].prdaddr);
 460 #endif
 461                         if (!is885(dev)) {
 462                                 atp_writeb_pci(dev, c, 2, 0x06);
 463                                 atp_writeb_pci(dev, c, 2, 0x00);
 464                         }
 465                         /*
 466                          *      Check transfer direction
 467                          */
 468                         if (dev->id[c][target_id].dirct != 0) {
 469                                 atp_writeb_io(dev, c, 0x18, 0x08);
 470                                 atp_writeb_pci(dev, c, 0, 0x01);
 471                                 dev->in_int[c] = 0;
 472 #ifdef ED_DBGP
 473                                 printk("status 0x80 return dirct != 0\n");
 474 #endif
 475                                 return IRQ_HANDLED;
 476                         }
 477                         atp_writeb_io(dev, c, 0x18, 0x08);
 478                         atp_writeb_pci(dev, c, 0, 0x09);
 479                         dev->in_int[c] = 0;
 480 #ifdef ED_DBGP
 481                         printk("status 0x80 return dirct = 0\n");
 482 #endif
 483                         return IRQ_HANDLED;
 484                 }
 485
 486                 /*
 487                  *      Current scsi request on this target
 488                  */
 489
 490                 workreq = dev->id[c][target_id].curr_req;
 491
 492                 if (i == 0x42 || i == 0x16) {
 493                         if ((dev->last_cmd[c] & 0xf0) != 0x40) {
 494                            dev->last_cmd[c] = 0xff;
 495                         }
 496                         if (i == 0x16) {
 497                                 workreq->result = atp_readb_io(dev, c, 0x0f);
 498                                 if (((dev->r1f[c][target_id] & 0x10) != 0) && is885(dev)) {
 499                                         printk(KERN_WARNING "AEC67162 CRC ERROR !\n");
 500                                         workreq->result = SAM_STAT_CHECK_CONDITION;
 501                                 }
 502                         } else
 503                                 workreq->result = SAM_STAT_CHECK_CONDITION;
 504
 505                         if (is885(dev)) {
 506                                 j = atp_readb_base(dev, 0x29) | 0x01;
 507                                 atp_writeb_base(dev, 0x29, j);
 508                         }
 509                         /*
 510                          *      Complete the command
 511                          */
 512                         scsi_dma_unmap(workreq);
 513
 514                         spin_lock_irqsave(dev->host->host_lock, flags);
 515                         scsi_done(workreq);
 516 #ifdef ED_DBGP
 517                            printk("workreq->scsi_done\n");
 518 #endif
 519                         /*
 520                          *      Clear it off the queue
 521                          */
 522                         dev->id[c][target_id].curr_req = NULL;
 523                         dev->working[c]--;
 524                         spin_unlock_irqrestore(dev->host->host_lock, flags);
 525                         /*
 526                          *      Take it back wide
 527                          */
 528                         if (dev->wide_id[c] != 0) {
 529                                 atp_writeb_io(dev, c, 0x1b, 0x01);
 530                                 while ((atp_readb_io(dev, c, 0x1b) & 0x01) != 0x01)
 531                                         atp_writeb_io(dev, c, 0x1b, 0x01);
 532                         }
 533                         /*
 534                          *      If there is stuff to send and nothing going then send it
 535                          */
 536                         spin_lock_irqsave(dev->host->host_lock, flags);
 537                         if (((dev->last_cmd[c] != 0xff) ||
 538                              (dev->quhd[c] != dev->quend[c])) &&
 539                             (dev->in_snd[c] == 0)) {
 540 #ifdef ED_DBGP
 541                            printk("Call sent_s870(scsi_done)\n");
 542 #endif
 543                            send_s870(dev,c);
 544                         }
 545                         spin_unlock_irqrestore(dev->host->host_lock, flags);
 546                         dev->in_int[c] = 0;
 547                         return IRQ_HANDLED;
 548                 }
 549                 if ((dev->last_cmd[c] & 0xf0) != 0x40) {
 550                    dev->last_cmd[c] = 0xff;
 551                 }
 552                 if (i == 0x4f) {
 553                         i = 0x89;
 554                 }
 555                 i &= 0x0f;
 556                 if (i == 0x09) {
 557                         atp_writel_pci(dev, c, 4, dev->id[c][target_id].prdaddr);
 558                         atp_writeb_pci(dev, c, 2, 0x06);
 559                         atp_writeb_pci(dev, c, 2, 0x00);
 560                         atp_writeb_io(dev, c, 0x10, 0x41);
 561                         if (is885(dev)) {
 562                                 k = dev->id[c][target_id].last_len;
 563                                 atp_writeb_io(dev, c, 0x12,
 564                                               ((unsigned char *) (&k))[2]);
 565                                 atp_writeb_io(dev, c, 0x13,
 566                                               ((unsigned char *) (&k))[1]);
 567                                 atp_writeb_io(dev, c, 0x14,
 568                                               ((unsigned char *) (&k))[0]);
 569                                 dev->id[c][target_id].dirct = 0x00;
 570                         } else {
 571                                 dev->id[c][target_id].dirct = 0x00;
 572                         }
 573                         atp_writeb_io(dev, c, 0x18, 0x08);
 574                         atp_writeb_pci(dev, c, 0, 0x09);
 575                         dev->in_int[c] = 0;
 576                         return IRQ_HANDLED;
 577                 }
 578                 if (i == 0x08) {
 579                         atp_writel_pci(dev, c, 4, dev->id[c][target_id].prdaddr);
 580                         atp_writeb_pci(dev, c, 2, 0x06);
 581                         atp_writeb_pci(dev, c, 2, 0x00);
 582                         atp_writeb_io(dev, c, 0x10, 0x41);
 583                         if (is885(dev)) {
 584                                 k = dev->id[c][target_id].last_len;
 585                                 atp_writeb_io(dev, c, 0x12,
 586                                               ((unsigned char *) (&k))[2]);
 587                                 atp_writeb_io(dev, c, 0x13,
 588                                               ((unsigned char *) (&k))[1]);
 589                                 atp_writeb_io(dev, c, 0x14,
 590                                               ((unsigned char *) (&k))[0]);
 591                         }
 592                         atp_writeb_io(dev, c, 0x15,
 593                                       atp_readb_io(dev, c, 0x15) | 0x20);
 594                         dev->id[c][target_id].dirct = 0x20;
 595                         atp_writeb_io(dev, c, 0x18, 0x08);
 596                         atp_writeb_pci(dev, c, 0, 0x01);
 597                         dev->in_int[c] = 0;
 598                         return IRQ_HANDLED;
 599                 }
 600                 if (i == 0x0a)
 601                         atp_writeb_io(dev, c, 0x10, 0x30);
 602                 else
 603                         atp_writeb_io(dev, c, 0x10, 0x46);
 604                 dev->id[c][target_id].dirct = 0x00;
 605                 atp_writeb_io(dev, c, 0x12, 0x00);
 606                 atp_writeb_io(dev, c, 0x13, 0x00);
 607                 atp_writeb_io(dev, c, 0x14, 0x00);
 608                 atp_writeb_io(dev, c, 0x18, 0x08);
 609         }
 610         dev->in_int[c] = 0;
 611
 612         return IRQ_HANDLED;
 613 }
 614 /**
 615  *      atp870u_queuecommand_lck -      Queue SCSI command
 616  *      @req_p: request block
 617  *
 618  *      Queue a command to the ATP queue. Called with the host lock held.
 619  */
 620 static int atp870u_queuecommand_lck(struct scsi_cmnd *req_p)
 621 {
 622         void (*done)(struct scsi_cmnd *) = scsi_done;
 623         unsigned char c;
 624         unsigned int m;
 625         struct atp_unit *dev;
 626         struct Scsi_Host *host;
 627
 628         c = scmd_channel(req_p);
 629         req_p->sense_buffer[0]=0;
 630         scsi_set_resid(req_p, 0);
 631         if (scmd_channel(req_p) > 1) {
 632                 req_p->result = DID_BAD_TARGET << 16;
 633                 done(req_p);
 634 #ifdef ED_DBGP
 635                 printk("atp870u_queuecommand : req_p->device->channel > 1\n");
 636 #endif
 637                 return 0;
 638         }
 639
 640         host = req_p->device->host;
 641         dev = (struct atp_unit *)&host->hostdata;
 642
 643         m = 1;
 644         m = m << scmd_id(req_p);
 645
 646         /*
 647          *      Fake a timeout for missing targets
 648          */
 649
 650         if ((m & dev->active_id[c]) == 0) {
 651                 req_p->result = DID_BAD_TARGET << 16;
 652                 done(req_p);
 653                 return 0;
 654         }
 655
 656         /*
 657          *      Count new command
 658          */
 659         dev->quend[c]++;
 660         if (dev->quend[c] >= qcnt) {
 661                 dev->quend[c] = 0;
 662         }
 663
 664         /*
 665          *      Check queue state
 666          */
 667         if (dev->quhd[c] == dev->quend[c]) {
 668                 if (dev->quend[c] == 0) {
 669                         dev->quend[c] = qcnt;
 670                 }
 671 #ifdef ED_DBGP
 672                 printk("atp870u_queuecommand : dev->quhd[c] == dev->quend[c]\n");
 673 #endif
 674                 dev->quend[c]--;
 675                 req_p->result = DID_BUS_BUSY << 16;
 676                 done(req_p);
 677                 return 0;
 678         }
 679         dev->quereq[c][dev->quend[c]] = req_p;
 680 #ifdef ED_DBGP
 681         printk("dev->ioport[c] = %x atp_readb_io(dev, c, 0x1c) = %x "
 682                "dev->in_int[%d] = %d dev->in_snd[%d] = %d\n",
 683                dev->ioport[c], atp_readb_io(dev, c, 0x1c), c,
 684                dev->in_int[c],c,dev->in_snd[c]);
 685 #endif
 686         if ((atp_readb_io(dev, c, 0x1c) == 0) &&
 687             (dev->in_int[c] == 0) &&
 688             (dev->in_snd[c] == 0)) {
 689 #ifdef ED_DBGP
 690                 printk("Call sent_s870(atp870u_queuecommand)\n");
 691 #endif
 692                 send_s870(dev,c);
 693         }
 694 #ifdef ED_DBGP
 695         printk("atp870u_queuecommand : exit\n");
 696 #endif
 697         return 0;
 698 }
 699
 700 static DEF_SCSI_QCMD(atp870u_queuecommand)
 701
 702 /*
 703  *      send_s870       -       send a command to the controller
 704  *
 705  *      On entry there is work queued to be done. We move some of that work to the
 706  *      controller itself.
 707  *
 708  *      Caller holds the host lock.
 709  */
 710 static void send_s870(struct atp_unit *dev, unsigned char c)
 711 {
 712         struct scsi_cmnd *workreq = NULL;
 713         unsigned int i;//,k;
 714         unsigned char  j, target_id;
 715         unsigned char *prd;
 716         unsigned short int w;
 717         unsigned long l, bttl = 0;
 718         unsigned long  sg_count;
 719
 720         if (dev->in_snd[c] != 0) {
 721 #ifdef ED_DBGP
 722                 printk("cmnd in_snd\n");
 723 #endif
 724                 return;
 725         }
 726 #ifdef ED_DBGP
 727         printk("Sent_s870 enter\n");
 728 #endif
 729         dev->in_snd[c] = 1;
 730         if ((dev->last_cmd[c] != 0xff) && ((dev->last_cmd[c] & 0x40) != 0)) {
 731                 dev->last_cmd[c] &= 0x0f;
 732                 workreq = dev->id[c][dev->last_cmd[c]].curr_req;
 733                 if (!workreq) {
 734                         dev->last_cmd[c] = 0xff;
 735                         if (dev->quhd[c] == dev->quend[c]) {
 736                                 dev->in_snd[c] = 0;
 737                                 return;
 738                         }
 739                 }
 740         }
 741         if (!workreq) {
 742                 if ((dev->last_cmd[c] != 0xff) && (dev->working[c] != 0)) {
 743                         dev->in_snd[c] = 0;
 744                         return;
 745                 }
 746                 dev->working[c]++;
 747                 j = dev->quhd[c];
 748                 dev->quhd[c]++;
 749                 if (dev->quhd[c] >= qcnt)
 750                         dev->quhd[c] = 0;
 751                 workreq = dev->quereq[c][dev->quhd[c]];
 752                 if (dev->id[c][scmd_id(workreq)].curr_req != NULL) {
 753                         dev->quhd[c] = j;
 754                         dev->working[c]--;
 755                         dev->in_snd[c] = 0;
 756                         return;
 757                 }
 758                 dev->id[c][scmd_id(workreq)].curr_req = workreq;
 759                 dev->last_cmd[c] = scmd_id(workreq);
 760         }
 761         if ((atp_readb_io(dev, c, 0x1f) & 0xb0) != 0 ||
 762             atp_readb_io(dev, c, 0x1c) != 0) {
 763 #ifdef ED_DBGP
 764                 printk("Abort to Send\n");
 765 #endif
 766                 dev->last_cmd[c] |= 0x40;
 767                 dev->in_snd[c] = 0;
 768                 return;
 769         }
 770 #ifdef ED_DBGP
 771         printk("OK to Send\n");
 772         scmd_printk(KERN_DEBUG, workreq, "CDB");
 773         for(i=0;i<workreq->cmd_len;i++) {
 774                 printk(" %x",workreq->cmnd[i]);
 775         }
 776         printk("\n");
 777 #endif
 778         l = scsi_bufflen(workreq);
 779
 780         if (is885(dev)) {
 781                 j = atp_readb_base(dev, 0x29) & 0xfe;
 782                 atp_writeb_base(dev, 0x29, j);
 783                 dev->r1f[c][scmd_id(workreq)] = 0;
 784         }
 785
 786         if (workreq->cmnd[0] == READ_CAPACITY) {
 787                 if (l > 8)
 788                         l = 8;
 789         }
 790         if (workreq->cmnd[0] == TEST_UNIT_READY) {
 791                 l = 0;
 792         }
 793
 794         j = 0;
 795         target_id = scmd_id(workreq);
 796
 797         /*
 798          *      Wide ?
 799          */
 800         w = 1;
 801         w = w << target_id;
 802         if ((w & dev->wide_id[c]) != 0) {
 803                 j |= 0x01;
 804         }
 805         atp_writeb_io(dev, c, 0x1b, j);
 806         while ((atp_readb_io(dev, c, 0x1b) & 0x01) != j) {
 807                 atp_writeb_pci(dev, c, 0x1b, j);
 808 #ifdef ED_DBGP
 809                 printk("send_s870 while loop 1\n");
 810 #endif
 811         }
 812         /*
 813          *      Write the command
 814          */
 815
 816         atp_writeb_io(dev, c, 0x00, workreq->cmd_len);
 817         atp_writeb_io(dev, c, 0x01, 0x2c);
 818         if (is885(dev))
 819                 atp_writeb_io(dev, c, 0x02, 0x7f);
 820         else
 821                 atp_writeb_io(dev, c, 0x02, 0xcf);
 822         for (i = 0; i < workreq->cmd_len; i++)
 823                 atp_writeb_io(dev, c, 0x03 + i, workreq->cmnd[i]);
 824         atp_writeb_io(dev, c, 0x0f, workreq->device->lun);
 825         /*
 826          *      Write the target
 827          */
 828         atp_writeb_io(dev, c, 0x11, dev->id[c][target_id].devsp);
 829 #ifdef ED_DBGP
 830         printk("dev->id[%d][%d].devsp = %2x\n",c,target_id,
 831                dev->id[c][target_id].devsp);
 832 #endif
 833
 834         sg_count = scsi_dma_map(workreq);
 835         /*
 836          *      Write transfer size
 837          */
 838         atp_writeb_io(dev, c, 0x12, ((unsigned char *) (&l))[2]);
 839         atp_writeb_io(dev, c, 0x13, ((unsigned char *) (&l))[1]);
 840         atp_writeb_io(dev, c, 0x14, ((unsigned char *) (&l))[0]);
 841         j = target_id;
 842         dev->id[c][j].last_len = l;
 843         dev->id[c][j].tran_len = 0;
 844 #ifdef ED_DBGP
 845         printk("dev->id[%2d][%2d].last_len = %d\n",c,j,dev->id[c][j].last_len);
 846 #endif
 847         /*
 848          *      Flip the wide bits
 849          */
 850         if ((j & 0x08) != 0) {
 851                 j = (j & 0x07) | 0x40;
 852         }
 853         /*
 854          *      Check transfer direction
 855          */
 856         if (workreq->sc_data_direction == DMA_TO_DEVICE)
 857                 atp_writeb_io(dev, c, 0x15, j | 0x20);
 858         else
 859                 atp_writeb_io(dev, c, 0x15, j);
 860         atp_writeb_io(dev, c, 0x16, atp_readb_io(dev, c, 0x16) | 0x80);
 861         atp_writeb_io(dev, c, 0x16, 0x80);
 862         dev->id[c][target_id].dirct = 0;
 863         if (l == 0) {
 864                 if (atp_readb_io(dev, c, 0x1c) == 0) {
 865 #ifdef ED_DBGP
 866                         printk("change SCSI_CMD_REG 0x08\n");
 867 #endif
 868                         atp_writeb_io(dev, c, 0x18, 0x08);
 869                 } else
 870                         dev->last_cmd[c] |= 0x40;
 871                 dev->in_snd[c] = 0;
 872                 return;
 873         }
 874         prd = dev->id[c][target_id].prd_table;
 875         dev->id[c][target_id].prd_pos = prd;
 876
 877         /*
 878          *      Now write the request list. Either as scatter/gather or as
 879          *      a linear chain.
 880          */
 881
 882         if (l) {
 883                 struct scatterlist *sgpnt;
 884                 i = 0;
 885                 scsi_for_each_sg(workreq, sgpnt, sg_count, j) {
 886                         bttl = sg_dma_address(sgpnt);
 887                         l=sg_dma_len(sgpnt);
 888 #ifdef ED_DBGP
 889                         printk("1. bttl %x, l %x\n",bttl, l);
 890 #endif
 891                         while (l > 0x10000) {
 892                                 (((u16 *) (prd))[i + 3]) = 0x0000;
 893                                 (((u16 *) (prd))[i + 2]) = 0x0000;
 894                                 (((u32 *) (prd))[i >> 1]) = cpu_to_le32(bttl);
 895                                 l -= 0x10000;
 896                                 bttl += 0x10000;
 897                                 i += 0x04;
 898                         }
 899                         (((u32 *) (prd))[i >> 1]) = cpu_to_le32(bttl);
 900                         (((u16 *) (prd))[i + 2]) = cpu_to_le16(l);
 901                         (((u16 *) (prd))[i + 3]) = 0;
 902                         i += 0x04;
 903                 }
 904                 (((u16 *) (prd))[i - 1]) = cpu_to_le16(0x8000);
 905 #ifdef ED_DBGP
 906                 printk("prd %4x %4x %4x %4x\n",
 907                        (((unsigned short int *)prd)[0]),
 908                        (((unsigned short int *)prd)[1]),
 909                        (((unsigned short int *)prd)[2]),
 910                        (((unsigned short int *)prd)[3]));
 911                 printk("2. bttl %x, l %x\n",bttl, l);
 912 #endif
 913         }
 914 #ifdef ED_DBGP
 915         printk("send_s870: prdaddr_2 0x%8x target_id %d\n",
 916                dev->id[c][target_id].prdaddr,target_id);
 917 #endif
 918         dev->id[c][target_id].prdaddr = dev->id[c][target_id].prd_bus;
 919         atp_writel_pci(dev, c, 4, dev->id[c][target_id].prdaddr);
 920         atp_writeb_pci(dev, c, 2, 0x06);
 921         atp_writeb_pci(dev, c, 2, 0x00);
 922         if (is885(dev)) {
 923                 j = atp_readb_pci(dev, c, 1) & 0xf3;
 924                 if ((workreq->cmnd[0] == READ_6) ||
 925                     (workreq->cmnd[0] == READ_10) ||
 926                     (workreq->cmnd[0] == WRITE_6) ||
 927                     (workreq->cmnd[0] == WRITE_10)) {
 928                         j |= 0x0c;
 929                 }
 930                 atp_writeb_pci(dev, c, 1, j);
 931         } else if (is880(dev)) {
 932                 if ((workreq->cmnd[0] == READ_6) ||
 933                     (workreq->cmnd[0] == READ_10) ||
 934                     (workreq->cmnd[0] == WRITE_6) ||
 935                     (workreq->cmnd[0] == WRITE_10))
 936                         atp_writeb_base(dev, 0x3b,
 937                                         (atp_readb_base(dev, 0x3b) & 0x3f) | 0xc0);
 938                 else
 939                         atp_writeb_base(dev, 0x3b,
 940                                         atp_readb_base(dev, 0x3b) & 0x3f);
 941         } else {
 942                 if ((workreq->cmnd[0] == READ_6) ||
 943                     (workreq->cmnd[0] == READ_10) ||
 944                     (workreq->cmnd[0] == WRITE_6) ||
 945                     (workreq->cmnd[0] == WRITE_10))
 946                         atp_writeb_base(dev, 0x3a,
 947                                         (atp_readb_base(dev, 0x3a) & 0xf3) | 0x08);
 948                 else
 949                         atp_writeb_base(dev, 0x3a,
 950                                         atp_readb_base(dev, 0x3a) & 0xf3);
 951         }
 952
 953         if(workreq->sc_data_direction == DMA_TO_DEVICE) {
 954                 dev->id[c][target_id].dirct = 0x20;
 955                 if (atp_readb_io(dev, c, 0x1c) == 0) {
 956                         atp_writeb_io(dev, c, 0x18, 0x08);
 957                         atp_writeb_pci(dev, c, 0, 0x01);
 958 #ifdef ED_DBGP
 959                 printk( "start DMA(to target)\n");
 960 #endif
 961                 } else {
 962                         dev->last_cmd[c] |= 0x40;
 963                 }
 964                 dev->in_snd[c] = 0;
 965                 return;
 966         }
 967         if (atp_readb_io(dev, c, 0x1c) == 0) {
 968                 atp_writeb_io(dev, c, 0x18, 0x08);
 969                 atp_writeb_pci(dev, c, 0, 0x09);
 970 #ifdef ED_DBGP
 971                 printk( "start DMA(to host)\n");
 972 #endif
 973         } else {
 974                 dev->last_cmd[c] |= 0x40;
 975         }
 976         dev->in_snd[c] = 0;
 977         return;
 978
 979 }
 980
 981 static unsigned char fun_scam(struct atp_unit *dev, unsigned short int *val)
 982 {
 983         unsigned short int i, k;
 984         unsigned char j;
 985
 986         atp_writew_io(dev, 0, 0x1c, *val);
 987         for (i = 0; i < 10; i++) {      /* stable >= bus settle delay(400 ns)  */
 988                 k = atp_readw_io(dev, 0, 0x1c);
 989                 j = (unsigned char) (k >> 8);
 990                 if ((k & 0x8000) != 0)  /* DB7 all release?    */
 991                         i = 0;
 992         }
 993         *val |= 0x4000;         /* assert DB6           */
 994         atp_writew_io(dev, 0, 0x1c, *val);
 995         *val &= 0xdfff;         /* assert DB5           */
 996         atp_writew_io(dev, 0, 0x1c, *val);
 997         for (i = 0; i < 10; i++) {      /* stable >= bus settle delay(400 ns) */
 998                 if ((atp_readw_io(dev, 0, 0x1c) & 0x2000) != 0) /* DB5 all release?       */
 999                         i = 0;
1000         }
1001         *val |= 0x8000;         /* no DB4-0, assert DB7    */
1002         *val &= 0xe0ff;
1003         atp_writew_io(dev, 0, 0x1c, *val);
1004         *val &= 0xbfff;         /* release DB6             */
1005         atp_writew_io(dev, 0, 0x1c, *val);
1006         for (i = 0; i < 10; i++) {      /* stable >= bus settle delay(400 ns)  */
1007                 if ((atp_readw_io(dev, 0, 0x1c) & 0x4000) != 0) /* DB6 all release?  */
1008                         i = 0;
1009         }
1010
1011         return j;
1012 }
1013
1014 static void tscam(struct Scsi_Host *host, bool wide_chip, u8 scam_on)
1015 {
1016
1017         unsigned char i, j, k;
1018         unsigned long n;
1019         unsigned short int m, assignid_map, val;
1020         unsigned char mbuf[33], quintet[2];
1021         struct atp_unit *dev = (struct atp_unit *)&host->hostdata;
1022         static unsigned char g2q_tab[8] = {
1023                 0x38, 0x31, 0x32, 0x2b, 0x34, 0x2d, 0x2e, 0x27
1024         };
1025
1026 /*  I can't believe we need this before we've even done anything.  Remove it
1027  *  and see if anyone bitches.
1028         for (i = 0; i < 0x10; i++) {
1029                 udelay(0xffff);
1030         }
1031  */
1032
1033         atp_writeb_io(dev, 0, 1, 0x08);
1034         atp_writeb_io(dev, 0, 2, 0x7f);
1035         atp_writeb_io(dev, 0, 0x11, 0x20);
1036
1037         if ((scam_on & 0x40) == 0) {
1038                 return;
1039         }
1040         m = 1;
1041         m <<= dev->host_id[0];
1042         j = 16;
1043         if (!wide_chip) {
1044                 m |= 0xff00;
1045                 j = 8;
1046         }
1047         assignid_map = m;
1048         atp_writeb_io(dev, 0, 0x02, 0x02);      /* 2*2=4ms,3EH 2/32*3E=3.9ms */
1049         atp_writeb_io(dev, 0, 0x03, 0);
1050         atp_writeb_io(dev, 0, 0x04, 0);
1051         atp_writeb_io(dev, 0, 0x05, 0);
1052         atp_writeb_io(dev, 0, 0x06, 0);
1053         atp_writeb_io(dev, 0, 0x07, 0);
1054         atp_writeb_io(dev, 0, 0x08, 0);
1055
1056         for (i = 0; i < j; i++) {
1057                 m = 1;
1058                 m = m << i;
1059                 if ((m & assignid_map) != 0) {
1060                         continue;
1061                 }
1062                 atp_writeb_io(dev, 0, 0x0f, 0);
1063                 atp_writeb_io(dev, 0, 0x12, 0);
1064                 atp_writeb_io(dev, 0, 0x13, 0);
1065                 atp_writeb_io(dev, 0, 0x14, 0);
1066                 if (i > 7) {
1067                         k = (i & 0x07) | 0x40;
1068                 } else {
1069                         k = i;
1070                 }
1071                 atp_writeb_io(dev, 0, 0x15, k);
1072                 if (wide_chip)
1073                         atp_writeb_io(dev, 0, 0x1b, 0x01);
1074                 else
1075                         atp_writeb_io(dev, 0, 0x1b, 0x00);
1076                 do {
1077                         atp_writeb_io(dev, 0, 0x18, 0x09);
1078
1079                         while ((atp_readb_io(dev, 0, 0x1f) & 0x80) == 0x00)
1080                                 cpu_relax();
1081                         k = atp_readb_io(dev, 0, 0x17);
1082                         if ((k == 0x85) || (k == 0x42))
1083                                 break;
1084                         if (k != 0x16)
1085                                 atp_writeb_io(dev, 0, 0x10, 0x41);
1086                 } while (k != 0x16);
1087                 if ((k == 0x85) || (k == 0x42))
1088                         continue;
1089                 assignid_map |= m;
1090
1091         }
1092         atp_writeb_io(dev, 0, 0x02, 0x7f);
1093         atp_writeb_io(dev, 0, 0x1b, 0x02);
1094
1095         udelay(2);
1096
1097         val = 0x0080;           /* bsy  */
1098         atp_writew_io(dev, 0, 0x1c, val);
1099         val |= 0x0040;          /* sel  */
1100         atp_writew_io(dev, 0, 0x1c, val);
1101         val |= 0x0004;          /* msg  */
1102         atp_writew_io(dev, 0, 0x1c, val);
1103         udelay(2);              /* 2 deskew delay(45ns*2=90ns) */
1104         val &= 0x007f;          /* no bsy  */
1105         atp_writew_io(dev, 0, 0x1c, val);
1106         msleep(128);
1107         val &= 0x00fb;          /* after 1ms no msg */
1108         atp_writew_io(dev, 0, 0x1c, val);
1109         while ((atp_readb_io(dev, 0, 0x1c) & 0x04) != 0)
1110                 ;
1111         udelay(2);
1112         udelay(100);
1113         for (n = 0; n < 0x30000; n++)
1114                 if ((atp_readb_io(dev, 0, 0x1c) & 0x80) != 0)   /* bsy ? */
1115                         break;
1116         if (n < 0x30000)
1117                 for (n = 0; n < 0x30000; n++)
1118                         if ((atp_readb_io(dev, 0, 0x1c) & 0x81) == 0x0081) {
1119                                 udelay(2);
1120                                 val |= 0x8003;          /* io,cd,db7  */
1121                                 atp_writew_io(dev, 0, 0x1c, val);
1122                                 udelay(2);
1123                                 val &= 0x00bf;          /* no sel     */
1124                                 atp_writew_io(dev, 0, 0x1c, val);
1125                                 udelay(2);
1126                                 break;
1127                         }
1128         while (1) {
1129         /*
1130          * The funny division into multiple delays is to accomodate
1131          * arches like ARM where udelay() multiplies its argument by
1132          * a large number to initialize a loop counter.  To avoid
1133          * overflow, the maximum supported udelay is 2000 microseconds.
1134          *
1135          * XXX it would be more polite to find a way to use msleep()
1136          */
1137         mdelay(2);
1138         udelay(48);
1139         if ((atp_readb_io(dev, 0, 0x1c) & 0x80) == 0x00) {      /* bsy ? */
1140                 atp_writew_io(dev, 0, 0x1c, 0);
1141                 atp_writeb_io(dev, 0, 0x1b, 0);
1142                 atp_writeb_io(dev, 0, 0x15, 0);
1143                 atp_writeb_io(dev, 0, 0x18, 0x09);
1144                 while ((atp_readb_io(dev, 0, 0x1f) & 0x80) == 0)
1145                         cpu_relax();
1146                 atp_readb_io(dev, 0, 0x17);
1147                 return;
1148         }
1149         val &= 0x00ff;          /* synchronization  */
1150         val |= 0x3f00;
1151         fun_scam(dev, &val);
1152         udelay(2);
1153         val &= 0x00ff;          /* isolation        */
1154         val |= 0x2000;
1155         fun_scam(dev, &val);
1156         udelay(2);
1157         i = 8;
1158         j = 0;
1159
1160         while (1) {
1161                 if ((atp_readw_io(dev, 0, 0x1c) & 0x2000) == 0)
1162                         continue;
1163                 udelay(2);
1164                 val &= 0x00ff;          /* get ID_STRING */
1165                 val |= 0x2000;
1166                 k = fun_scam(dev, &val);
1167                 if ((k & 0x03) == 0)
1168                         break;
1169                 mbuf[j] <<= 0x01;
1170                 mbuf[j] &= 0xfe;
1171                 if ((k & 0x02) != 0)
1172                         mbuf[j] |= 0x01;
1173                 i--;
1174                 if (i > 0)
1175                         continue;
1176                 j++;
1177                 i = 8;
1178         }
1179
1180         /* isolation complete..  */
1181 /*    mbuf[32]=0;
1182         printk(" \n%x %x %x %s\n ",assignid_map,mbuf[0],mbuf[1],&mbuf[2]); */
1183         i = 15;
1184         j = mbuf[0];
1185         if ((j & 0x20) != 0) {  /* bit5=1:ID up to 7      */
1186                 i = 7;
1187         }
1188         if ((j & 0x06) != 0) {  /* IDvalid?             */
1189                 k = mbuf[1];
1190                 while (1) {
1191                         m = 1;
1192                         m <<= k;
1193                         if ((m & assignid_map) == 0)
1194                                 break;
1195                         if (k > 0)
1196                                 k--;
1197                         else
1198                                 break;
1199                 }
1200         }
1201         if ((m & assignid_map) != 0) {  /* srch from max acceptable ID#  */
1202                 k = i;                  /* max acceptable ID#            */
1203                 while (1) {
1204                         m = 1;
1205                         m <<= k;
1206                         if ((m & assignid_map) == 0)
1207                                 break;
1208                         if (k > 0)
1209                                 k--;
1210                         else
1211                                 break;
1212                 }
1213         }
1214         /* k=binID#,       */
1215         assignid_map |= m;
1216         if (k < 8) {
1217                 quintet[0] = 0x38;      /* 1st dft ID<8    */
1218         } else {
1219                 quintet[0] = 0x31;      /* 1st  ID>=8      */
1220         }
1221         k &= 0x07;
1222         quintet[1] = g2q_tab[k];
1223
1224         val &= 0x00ff;          /* AssignID 1stQuintet,AH=001xxxxx  */
1225         m = quintet[0] << 8;
1226         val |= m;
1227         fun_scam(dev, &val);
1228         val &= 0x00ff;          /* AssignID 2ndQuintet,AH=001xxxxx */
1229         m = quintet[1] << 8;
1230         val |= m;
1231         fun_scam(dev, &val);
1232
1233         }
1234 }
1235
1236 static void atp870u_free_tables(struct Scsi_Host *host)
1237 {
1238         struct atp_unit *atp_dev = (struct atp_unit *)&host->hostdata;
1239         int j, k;
1240         for (j=0; j < 2; j++) {
1241                 for (k = 0; k < 16; k++) {
1242                         if (!atp_dev->id[j][k].prd_table)
1243                                 continue;
1244                         dma_free_coherent(&atp_dev->pdev->dev, 1024,
1245                                           atp_dev->id[j][k].prd_table,
1246                                           atp_dev->id[j][k].prd_bus);
1247                         atp_dev->id[j][k].prd_table = NULL;
1248                 }
1249         }
1250 }
1251
1252 static int atp870u_init_tables(struct Scsi_Host *host)
1253 {
1254         struct atp_unit *atp_dev = (struct atp_unit *)&host->hostdata;
1255         int c,k;
1256         for(c=0;c < 2;c++) {
1257                 for(k=0;k<16;k++) {
1258                         atp_dev->id[c][k].prd_table =
1259                                 dma_alloc_coherent(&atp_dev->pdev->dev, 1024,
1260                                                    &(atp_dev->id[c][k].prd_bus),
1261                                                    GFP_KERNEL);
1262                         if (!atp_dev->id[c][k].prd_table) {
1263                                 printk("atp870u_init_tables fail\n");
1264                                 atp870u_free_tables(host);
1265                                 return -ENOMEM;
1266                         }
1267                         atp_dev->id[c][k].prdaddr = atp_dev->id[c][k].prd_bus;
1268                         atp_dev->id[c][k].devsp=0x20;
1269                         atp_dev->id[c][k].devtype = 0x7f;
1270                         atp_dev->id[c][k].curr_req = NULL;
1271                 }
1272
1273                 atp_dev->active_id[c] = 0;
1274                 atp_dev->wide_id[c] = 0;
1275                 atp_dev->host_id[c] = 0x07;
1276                 atp_dev->quhd[c] = 0;
1277                 atp_dev->quend[c] = 0;
1278                 atp_dev->last_cmd[c] = 0xff;
1279                 atp_dev->in_snd[c] = 0;
1280                 atp_dev->in_int[c] = 0;
1281
1282                 for (k = 0; k < qcnt; k++) {
1283                         atp_dev->quereq[c][k] = NULL;
1284                 }
1285                 for (k = 0; k < 16; k++) {
1286                            atp_dev->id[c][k].curr_req = NULL;
1287                            atp_dev->sp[c][k] = 0x04;
1288                 }
1289         }
1290         return 0;
1291 }
1292
1293 static void atp_set_host_id(struct atp_unit *atp, u8 c, u8 host_id)
1294 {
1295         atp_writeb_io(atp, c, 0, host_id | 0x08);
1296         atp_writeb_io(atp, c, 0x18, 0);
1297         while ((atp_readb_io(atp, c, 0x1f) & 0x80) == 0)
1298                 mdelay(1);
1299         atp_readb_io(atp, c, 0x17);
1300         atp_writeb_io(atp, c, 1, 8);
1301         atp_writeb_io(atp, c, 2, 0x7f);
1302         atp_writeb_io(atp, c, 0x11, 0x20);
1303 }
1304
1305 static void atp870_init(struct Scsi_Host *shpnt)
1306 {
1307         struct atp_unit *atpdev = shost_priv(shpnt);
1308         struct pci_dev *pdev = atpdev->pdev;
1309         unsigned char k, host_id;
1310         u8 scam_on;
1311         bool wide_chip =
1312                 (pdev->device == PCI_DEVICE_ID_ARTOP_AEC7610 &&
1313                  pdev->revision == 4) ||
1314                 (pdev->device == PCI_DEVICE_ID_ARTOP_AEC7612UW) ||
1315                 (pdev->device == PCI_DEVICE_ID_ARTOP_AEC7612SUW);
1316
1317         pci_read_config_byte(pdev, 0x49, &host_id);
1318
1319         dev_info(&pdev->dev, "ACARD AEC-671X PCI Ultra/W SCSI-2/3 "
1320                  "Host Adapter: IO:%lx, IRQ:%d.\n",
1321                  shpnt->io_port, shpnt->irq);
1322
1323         atpdev->ioport[0] = shpnt->io_port;
1324         atpdev->pciport[0] = shpnt->io_port + 0x20;
1325         host_id &= 0x07;
1326         atpdev->host_id[0] = host_id;
1327         scam_on = atp_readb_pci(atpdev, 0, 2);
1328         atpdev->global_map[0] = atp_readb_base(atpdev, 0x2d);
1329         atpdev->ultra_map[0] = atp_readw_base(atpdev, 0x2e);
1330
1331         if (atpdev->ultra_map[0] == 0) {
1332                 scam_on = 0x00;
1333                 atpdev->global_map[0] = 0x20;
1334                 atpdev->ultra_map[0] = 0xffff;
1335         }
1336
1337         if (pdev->revision > 0x07)      /* check if atp876 chip */
1338                 atp_writeb_base(atpdev, 0x3e, 0x00); /* enable terminator */
1339
1340         k = (atp_readb_base(atpdev, 0x3a) & 0xf3) | 0x10;
1341         atp_writeb_base(atpdev, 0x3a, k);
1342         atp_writeb_base(atpdev, 0x3a, k & 0xdf);
1343         msleep(32);
1344         atp_writeb_base(atpdev, 0x3a, k);
1345         msleep(32);
1346         atp_set_host_id(atpdev, 0, host_id);
1347
1348         tscam(shpnt, wide_chip, scam_on);
1349         atp_writeb_base(atpdev, 0x3a, atp_readb_base(atpdev, 0x3a) | 0x10);
1350         atp_is(atpdev, 0, wide_chip, 0);
1351         atp_writeb_base(atpdev, 0x3a, atp_readb_base(atpdev, 0x3a) & 0xef);
1352         atp_writeb_base(atpdev, 0x3b, atp_readb_base(atpdev, 0x3b) | 0x20);
1353         shpnt->max_id = wide_chip ? 16 : 8;
1354         shpnt->this_id = host_id;
1355 }
1356
1357 static void atp880_init(struct Scsi_Host *shpnt)
1358 {
1359         struct atp_unit *atpdev = shost_priv(shpnt);
1360         struct pci_dev *pdev = atpdev->pdev;
1361         unsigned char k, m, host_id;
1362         unsigned int n;
1363
1364         pci_write_config_byte(pdev, PCI_LATENCY_TIMER, 0x80);
1365
1366         atpdev->ioport[0] = shpnt->io_port + 0x40;
1367         atpdev->pciport[0] = shpnt->io_port + 0x28;
1368
1369         host_id = atp_readb_base(atpdev, 0x39) >> 4;
1370
1371         dev_info(&pdev->dev, "ACARD AEC-67160 PCI Ultra3 LVD "
1372                  "Host Adapter: IO:%lx, IRQ:%d.\n",
1373                  shpnt->io_port, shpnt->irq);
1374         atpdev->host_id[0] = host_id;
1375
1376         atpdev->global_map[0] = atp_readb_base(atpdev, 0x35);
1377         atpdev->ultra_map[0] = atp_readw_base(atpdev, 0x3c);
1378
1379         n = 0x3f09;
1380         while (n < 0x4000) {
1381                 m = 0;
1382                 atp_writew_base(atpdev, 0x34, n);
1383                 n += 0x0002;
1384                 if (atp_readb_base(atpdev, 0x30) == 0xff)
1385                         break;
1386
1387                 atpdev->sp[0][m++] = atp_readb_base(atpdev, 0x30);
1388                 atpdev->sp[0][m++] = atp_readb_base(atpdev, 0x31);
1389                 atpdev->sp[0][m++] = atp_readb_base(atpdev, 0x32);
1390                 atpdev->sp[0][m++] = atp_readb_base(atpdev, 0x33);
1391                 atp_writew_base(atpdev, 0x34, n);
1392                 n += 0x0002;
1393                 atpdev->sp[0][m++] = atp_readb_base(atpdev, 0x30);
1394                 atpdev->sp[0][m++] = atp_readb_base(atpdev, 0x31);
1395                 atpdev->sp[0][m++] = atp_readb_base(atpdev, 0x32);
1396                 atpdev->sp[0][m++] = atp_readb_base(atpdev, 0x33);
1397                 atp_writew_base(atpdev, 0x34, n);
1398                 n += 0x0002;
1399                 atpdev->sp[0][m++] = atp_readb_base(atpdev, 0x30);
1400                 atpdev->sp[0][m++] = atp_readb_base(atpdev, 0x31);
1401                 atpdev->sp[0][m++] = atp_readb_base(atpdev, 0x32);
1402                 atpdev->sp[0][m++] = atp_readb_base(atpdev, 0x33);
1403                 atp_writew_base(atpdev, 0x34, n);
1404                 n += 0x0002;
1405                 atpdev->sp[0][m++] = atp_readb_base(atpdev, 0x30);
1406                 atpdev->sp[0][m++] = atp_readb_base(atpdev, 0x31);
1407                 atpdev->sp[0][m++] = atp_readb_base(atpdev, 0x32);
1408                 atpdev->sp[0][m++] = atp_readb_base(atpdev, 0x33);
1409                 n += 0x0018;
1410         }
1411         atp_writew_base(atpdev, 0x34, 0);
1412         atpdev->ultra_map[0] = 0;
1413         atpdev->async[0] = 0;
1414         for (k = 0; k < 16; k++) {
1415                 n = 1 << k;
1416                 if (atpdev->sp[0][k] > 1)
1417                         atpdev->ultra_map[0] |= n;
1418                 else
1419                         if (atpdev->sp[0][k] == 0)
1420                                 atpdev->async[0] |= n;
1421         }
1422         atpdev->async[0] = ~(atpdev->async[0]);
1423         atp_writeb_base(atpdev, 0x35, atpdev->global_map[0]);
1424
1425         k = atp_readb_base(atpdev, 0x38) & 0x80;
1426         atp_writeb_base(atpdev, 0x38, k);
1427         atp_writeb_base(atpdev, 0x3b, 0x20);
1428         msleep(32);
1429         atp_writeb_base(atpdev, 0x3b, 0);
1430         msleep(32);
1431         atp_readb_io(atpdev, 0, 0x1b);
1432         atp_readb_io(atpdev, 0, 0x17);
1433
1434         atp_set_host_id(atpdev, 0, host_id);
1435
1436         tscam(shpnt, true, atp_readb_base(atpdev, 0x22));
1437         atp_is(atpdev, 0, true, atp_readb_base(atpdev, 0x3f) & 0x40);
1438         atp_writeb_base(atpdev, 0x38, 0xb0);
1439         shpnt->max_id = 16;
1440         shpnt->this_id = host_id;
1441 }
1442
1443 static void atp885_init(struct Scsi_Host *shpnt)
1444 {
1445         struct atp_unit *atpdev = shost_priv(shpnt);
1446         struct pci_dev *pdev = atpdev->pdev;
1447         unsigned char k, m, c;
1448         unsigned int n;
1449         unsigned char setupdata[2][16];
1450
1451         dev_info(&pdev->dev, "ACARD AEC-67162 PCI Ultra3 LVD "
1452                  "Host Adapter: IO:%lx, IRQ:%d.\n",
1453                  shpnt->io_port, shpnt->irq);
1454
1455         atpdev->ioport[0] = shpnt->io_port + 0x80;
1456         atpdev->ioport[1] = shpnt->io_port + 0xc0;
1457         atpdev->pciport[0] = shpnt->io_port + 0x40;
1458         atpdev->pciport[1] = shpnt->io_port + 0x50;
1459
1460         c = atp_readb_base(atpdev, 0x29);
1461         atp_writeb_base(atpdev, 0x29, c | 0x04);
1462
1463         n = 0x1f80;
1464         while (n < 0x2000) {
1465                 atp_writew_base(atpdev, 0x3c, n);
1466                 if (atp_readl_base(atpdev, 0x38) == 0xffffffff)
1467                         break;
1468                 for (m = 0; m < 2; m++) {
1469                         atpdev->global_map[m] = 0;
1470                         for (k = 0; k < 4; k++) {
1471                                 atp_writew_base(atpdev, 0x3c, n++);
1472                                 ((u32 *)&setupdata[m][0])[k] =
1473                                         atp_readl_base(atpdev, 0x38);
1474                         }
1475                         for (k = 0; k < 4; k++) {
1476                                 atp_writew_base(atpdev, 0x3c, n++);
1477                                 ((u32 *)&atpdev->sp[m][0])[k] =
1478                                         atp_readl_base(atpdev, 0x38);
1479                         }
1480                         n += 8;
1481                 }
1482         }
1483         c = atp_readb_base(atpdev, 0x29);
1484         atp_writeb_base(atpdev, 0x29, c & 0xfb);
1485         for (c = 0; c < 2; c++) {
1486                 atpdev->ultra_map[c] = 0;
1487                 atpdev->async[c] = 0;
1488                 for (k = 0; k < 16; k++) {
1489                         n = 1 << k;
1490                         if (atpdev->sp[c][k] > 1)
1491                                 atpdev->ultra_map[c] |= n;
1492                         else
1493                                 if (atpdev->sp[c][k] == 0)
1494                                         atpdev->async[c] |= n;
1495                 }
1496                 atpdev->async[c] = ~(atpdev->async[c]);
1497
1498                 if (atpdev->global_map[c] == 0) {
1499                         k = setupdata[c][1];
1500                         if ((k & 0x40) != 0)
1501                                 atpdev->global_map[c] |= 0x20;
1502                         k &= 0x07;
1503                         atpdev->global_map[c] |= k;
1504                         if ((setupdata[c][2] & 0x04) != 0)
1505                                 atpdev->global_map[c] |= 0x08;
1506                         atpdev->host_id[c] = setupdata[c][0] & 0x07;
1507                 }
1508         }
1509
1510         k = atp_readb_base(atpdev, 0x28) & 0x8f;
1511         k |= 0x10;
1512         atp_writeb_base(atpdev, 0x28, k);
1513         atp_writeb_pci(atpdev, 0, 1, 0x80);
1514         atp_writeb_pci(atpdev, 1, 1, 0x80);
1515         msleep(100);
1516         atp_writeb_pci(atpdev, 0, 1, 0);
1517         atp_writeb_pci(atpdev, 1, 1, 0);
1518         msleep(1000);
1519         atp_readb_io(atpdev, 0, 0x1b);
1520         atp_readb_io(atpdev, 0, 0x17);
1521         atp_readb_io(atpdev, 1, 0x1b);
1522         atp_readb_io(atpdev, 1, 0x17);
1523
1524         k = atpdev->host_id[0];
1525         if (k > 7)
1526                 k = (k & 0x07) | 0x40;
1527         atp_set_host_id(atpdev, 0, k);
1528
1529         k = atpdev->host_id[1];
1530         if (k > 7)
1531                 k = (k & 0x07) | 0x40;
1532         atp_set_host_id(atpdev, 1, k);
1533
1534         msleep(600); /* this delay used to be called tscam_885() */
1535         dev_info(&pdev->dev, "Scanning Channel A SCSI Device ...\n");
1536         atp_is(atpdev, 0, true, atp_readb_io(atpdev, 0, 0x1b) >> 7);
1537         atp_writeb_io(atpdev, 0, 0x16, 0x80);
1538         dev_info(&pdev->dev, "Scanning Channel B SCSI Device ...\n");
1539         atp_is(atpdev, 1, true, atp_readb_io(atpdev, 1, 0x1b) >> 7);
1540         atp_writeb_io(atpdev, 1, 0x16, 0x80);
1541         k = atp_readb_base(atpdev, 0x28) & 0xcf;
1542         k |= 0xc0;
1543         atp_writeb_base(atpdev, 0x28, k);
1544         k = atp_readb_base(atpdev, 0x1f) | 0x80;
1545         atp_writeb_base(atpdev, 0x1f, k);
1546         k = atp_readb_base(atpdev, 0x29) | 0x01;
1547         atp_writeb_base(atpdev, 0x29, k);
1548         shpnt->max_id = 16;
1549         shpnt->max_lun = (atpdev->global_map[0] & 0x07) + 1;
1550         shpnt->max_channel = 1;
1551         shpnt->this_id = atpdev->host_id[0];
1552 }
1553
1554 /* return non-zero on detection */
1555 static int atp870u_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1556 {
1557         struct Scsi_Host *shpnt = NULL;
1558         struct atp_unit *atpdev;
1559         int err;
1560
1561         if (ent->device == PCI_DEVICE_ID_ARTOP_AEC7610 && pdev->revision < 2) {
1562                 dev_err(&pdev->dev, "ATP850S chips (AEC6710L/F cards) are not supported.\n");
1563                 return -ENODEV;
1564         }
1565
1566         err = pci_enable_device(pdev);
1567         if (err)
1568                 goto fail;
1569
1570         if (dma_set_mask(&pdev->dev, DMA_BIT_MASK(32))) {
1571                 printk(KERN_ERR "atp870u: DMA mask required but not available.\n");
1572                 err = -EIO;
1573                 goto disable_device;
1574         }
1575
1576         err = pci_request_regions(pdev, "atp870u");
1577         if (err)
1578                 goto disable_device;
1579         pci_set_master(pdev);
1580
1581         err = -ENOMEM;
1582         shpnt = scsi_host_alloc(&atp870u_template, sizeof(struct atp_unit));
1583         if (!shpnt)
1584                 goto release_region;
1585
1586         atpdev = shost_priv(shpnt);
1587
1588         atpdev->host = shpnt;
1589         atpdev->pdev = pdev;
1590         pci_set_drvdata(pdev, atpdev);
1591
1592         shpnt->io_port = pci_resource_start(pdev, 0);
1593         shpnt->io_port &= 0xfffffff8;
1594         shpnt->n_io_port = pci_resource_len(pdev, 0);
1595         atpdev->baseport = shpnt->io_port;
1596         shpnt->unique_id = shpnt->io_port;
1597         shpnt->irq = pdev->irq;
1598
1599         err = atp870u_init_tables(shpnt);
1600         if (err) {
1601                 dev_err(&pdev->dev, "Unable to allocate tables for Acard controller\n");
1602                 goto unregister;
1603         }
1604
1605         if (is880(atpdev))
1606                 atp880_init(shpnt);
1607         else if (is885(atpdev))
1608                 atp885_init(shpnt);
1609         else
1610                 atp870_init(shpnt);
1611
1612         err = request_irq(shpnt->irq, atp870u_intr_handle, IRQF_SHARED, "atp870u", shpnt);
1613         if (err) {
1614                 dev_err(&pdev->dev, "Unable to allocate IRQ %d.\n", shpnt->irq);
1615                 goto free_tables;
1616         }
1617
1618         err = scsi_add_host(shpnt, &pdev->dev);
1619         if (err)
1620                 goto scsi_add_fail;
1621         scsi_scan_host(shpnt);
1622
1623         return 0;
1624
1625 scsi_add_fail:
1626         free_irq(shpnt->irq, shpnt);
1627 free_tables:
1628         atp870u_free_tables(shpnt);
1629 unregister:
1630         scsi_host_put(shpnt);
1631 release_region:
1632         pci_release_regions(pdev);
1633 disable_device:
1634         pci_disable_device(pdev);
1635 fail:
1636         return err;
1637 }
1638
1639 /* The abort command does not leave the device in a clean state where
1640    it is available to be used again.  Until this gets worked out, we will
1641    leave it commented out.  */
1642
1643 static int atp870u_abort(struct scsi_cmnd * SCpnt)
1644 {
1645         unsigned char  j, k, c;
1646         struct scsi_cmnd *workrequ;
1647         struct atp_unit *dev;
1648         struct Scsi_Host *host;
1649         host = SCpnt->device->host;
1650
1651         dev = (struct atp_unit *)&host->hostdata;
1652         c = scmd_channel(SCpnt);
1653         printk(" atp870u: abort Channel = %x \n", c);
1654         printk("working=%x last_cmd=%x ", dev->working[c], dev->last_cmd[c]);
1655         printk(" quhdu=%x quendu=%x ", dev->quhd[c], dev->quend[c]);
1656         for (j = 0; j < 0x18; j++) {
1657                 printk(" r%2x=%2x", j, atp_readb_io(dev, c, j));
1658         }
1659         printk(" r1c=%2x", atp_readb_io(dev, c, 0x1c));
1660         printk(" r1f=%2x in_snd=%2x ", atp_readb_io(dev, c, 0x1f), dev->in_snd[c]);
1661         printk(" d00=%2x", atp_readb_pci(dev, c, 0x00));
1662         printk(" d02=%2x", atp_readb_pci(dev, c, 0x02));
1663         for(j=0;j<16;j++) {
1664            if (dev->id[c][j].curr_req != NULL) {
1665                 workrequ = dev->id[c][j].curr_req;
1666                 printk("\n que cdb= ");
1667                 for (k=0; k < workrequ->cmd_len; k++) {
1668                     printk(" %2x ",workrequ->cmnd[k]);
1669                 }
1670                 printk(" last_lenu= %x ",(unsigned int)dev->id[c][j].last_len);
1671            }
1672         }
1673         return SUCCESS;
1674 }
1675
1676 static const char *atp870u_info(struct Scsi_Host *notused)
1677 {
1678         static char buffer[128];
1679
1680         strcpy(buffer, "ACARD AEC-6710/6712/67160 PCI Ultra/W/LVD SCSI-3 Adapter Driver V2.6+ac ");
1681
1682         return buffer;
1683 }
1684
1685 static int atp870u_show_info(struct seq_file *m, struct Scsi_Host *HBAptr)
1686 {
1687         seq_puts(m, "ACARD AEC-671X Driver Version: 2.6+ac\n\n"
1688                 "Adapter Configuration:\n");
1689         seq_printf(m, "               Base IO: %#.4lx\n", HBAptr->io_port);
1690         seq_printf(m, "                   IRQ: %d\n", HBAptr->irq);
1691         return 0;
1692 }
1693
1694
1695 static int atp870u_biosparam(struct scsi_device *disk, struct block_device *dev,
1696                         sector_t capacity, int *ip)
1697 {
1698         int heads, sectors, cylinders;
1699
1700         heads = 64;
1701         sectors = 32;
1702         cylinders = (unsigned long)capacity / (heads * sectors);
1703         if (cylinders > 1024) {
1704                 heads = 255;
1705                 sectors = 63;
1706                 cylinders = (unsigned long)capacity / (heads * sectors);
1707         }
1708         ip[0] = heads;
1709         ip[1] = sectors;
1710         ip[2] = cylinders;
1711
1712         return 0;
1713 }
1714
1715 static void atp870u_remove (struct pci_dev *pdev)
1716 {
1717         struct atp_unit *devext = pci_get_drvdata(pdev);
1718         struct Scsi_Host *pshost = devext->host;
1719
1720         scsi_remove_host(pshost);
1721         free_irq(pshost->irq, pshost);
1722         pci_release_regions(pdev);
1723         pci_disable_device(pdev);
1724         atp870u_free_tables(pshost);
1725         scsi_host_put(pshost);
1726 }
1727 MODULE_LICENSE("GPL");
1728
1729 static struct scsi_host_template atp870u_template = {
1730      .module                    = THIS_MODULE,
1731      .name                      = "atp870u"             /* name */,
1732      .proc_name                 = "atp870u",
1733      .show_info                 = atp870u_show_info,
1734      .info                      = atp870u_info          /* info */,
1735      .queuecommand              = atp870u_queuecommand  /* queuecommand */,
1736      .eh_abort_handler          = atp870u_abort         /* abort */,
1737      .bios_param                = atp870u_biosparam     /* biosparm */,
1738      .can_queue                 = qcnt                  /* can_queue */,
1739      .this_id                   = 7                     /* SCSI ID */,
1740      .sg_tablesize              = ATP870U_SCATTER       /*SG_ALL*/,
1741      .max_sectors               = ATP870U_MAX_SECTORS,
1742 };
1743
1744 static struct pci_device_id atp870u_id_table[] = {
1745         { PCI_DEVICE(PCI_VENDOR_ID_ARTOP, ATP885_DEVID)                   },
1746         { PCI_DEVICE(PCI_VENDOR_ID_ARTOP, ATP880_DEVID1)                  },
1747         { PCI_DEVICE(PCI_VENDOR_ID_ARTOP, ATP880_DEVID2)                  },
1748         { PCI_DEVICE(PCI_VENDOR_ID_ARTOP, PCI_DEVICE_ID_ARTOP_AEC7610)    },
1749         { PCI_DEVICE(PCI_VENDOR_ID_ARTOP, PCI_DEVICE_ID_ARTOP_AEC7612UW)  },
1750         { PCI_DEVICE(PCI_VENDOR_ID_ARTOP, PCI_DEVICE_ID_ARTOP_AEC7612U)   },
1751         { PCI_DEVICE(PCI_VENDOR_ID_ARTOP, PCI_DEVICE_ID_ARTOP_AEC7612S)   },
1752         { PCI_DEVICE(PCI_VENDOR_ID_ARTOP, PCI_DEVICE_ID_ARTOP_AEC7612D)   },
1753         { PCI_DEVICE(PCI_VENDOR_ID_ARTOP, PCI_DEVICE_ID_ARTOP_AEC7612SUW) },
1754         { PCI_DEVICE(PCI_VENDOR_ID_ARTOP, PCI_DEVICE_ID_ARTOP_8060)       },
1755         { 0, },
1756 };
1757
1758 MODULE_DEVICE_TABLE(pci, atp870u_id_table);
1759
1760 static struct pci_driver atp870u_driver = {
1761         .id_table       = atp870u_id_table,
1762         .name           = "atp870u",
1763         .probe          = atp870u_probe,
1764         .remove         = atp870u_remove,
1765 };
1766
1767 module_pci_driver(atp870u_driver);
1768
1769 static void atp_is(struct atp_unit *dev, unsigned char c, bool wide_chip,
1770                    unsigned char lvdmode)
1771 {
1772         unsigned char i, j, k, rmb, n;
1773         unsigned short int m;
1774         static unsigned char mbuf[512];
1775         static unsigned char satn[9] = { 0, 0, 0, 0, 0, 0, 0, 6, 6 };
1776         static unsigned char inqd[9] = { 0x12, 0, 0, 0, 0x24, 0, 0, 0x24, 6 };
1777         static unsigned char synn[6] = { 0x80, 1, 3, 1, 0x19, 0x0e };
1778         unsigned char synu[6] = { 0x80, 1, 3, 1, 0x0a, 0x0e };
1779         static unsigned char synw[6] = { 0x80, 1, 3, 1, 0x19, 0x0e };
1780         static unsigned char synw_870[6] = { 0x80, 1, 3, 1, 0x0c, 0x07 };
1781         unsigned char synuw[6] = { 0x80, 1, 3, 1, 0x0a, 0x0e };
1782         static unsigned char wide[6] = { 0x80, 1, 2, 3, 1, 0 };
1783         static unsigned char u3[9] = { 0x80, 1, 6, 4, 0x09, 00, 0x0e, 0x01, 0x02 };
1784
1785         for (i = 0; i < 16; i++) {
1786                 if (!wide_chip && (i > 7))
1787                         break;
1788                 m = 1;
1789                 m = m << i;
1790                 if ((m & dev->active_id[c]) != 0) {
1791                         continue;
1792                 }
1793                 if (i == dev->host_id[c]) {
1794                         printk(KERN_INFO "         ID: %2d  Host Adapter\n", dev->host_id[c]);
1795                         continue;
1796                 }
1797                 atp_writeb_io(dev, c, 0x1b, wide_chip ? 0x01 : 0x00);
1798                 atp_writeb_io(dev, c, 1, 0x08);
1799                 atp_writeb_io(dev, c, 2, 0x7f);
1800                 atp_writeb_io(dev, c, 3, satn[0]);
1801                 atp_writeb_io(dev, c, 4, satn[1]);
1802                 atp_writeb_io(dev, c, 5, satn[2]);
1803                 atp_writeb_io(dev, c, 6, satn[3]);
1804                 atp_writeb_io(dev, c, 7, satn[4]);
1805                 atp_writeb_io(dev, c, 8, satn[5]);
1806                 atp_writeb_io(dev, c, 0x0f, 0);
1807                 atp_writeb_io(dev, c, 0x11, dev->id[c][i].devsp);
1808                 atp_writeb_io(dev, c, 0x12, 0);
1809                 atp_writeb_io(dev, c, 0x13, satn[6]);
1810                 atp_writeb_io(dev, c, 0x14, satn[7]);
1811                 j = i;
1812                 if ((j & 0x08) != 0) {
1813                         j = (j & 0x07) | 0x40;
1814                 }
1815                 atp_writeb_io(dev, c, 0x15, j);
1816                 atp_writeb_io(dev, c, 0x18, satn[8]);
1817
1818                 while ((atp_readb_io(dev, c, 0x1f) & 0x80) == 0x00)
1819                         cpu_relax();
1820
1821                 if (atp_readb_io(dev, c, 0x17) != 0x11 && atp_readb_io(dev, c, 0x17) != 0x8e)
1822                         continue;
1823
1824                 while (atp_readb_io(dev, c, 0x17) != 0x8e)
1825                         cpu_relax();
1826
1827                 dev->active_id[c] |= m;
1828
1829                 atp_writeb_io(dev, c, 0x10, 0x30);
1830                 if (is885(dev) || is880(dev))
1831                         atp_writeb_io(dev, c, 0x14, 0x00);
1832                 else /* result of is870() merge - is this a bug? */
1833                         atp_writeb_io(dev, c, 0x04, 0x00);
1834
1835 phase_cmd:
1836                 atp_writeb_io(dev, c, 0x18, 0x08);
1837
1838                 while ((atp_readb_io(dev, c, 0x1f) & 0x80) == 0x00)
1839                         cpu_relax();
1840
1841                 j = atp_readb_io(dev, c, 0x17);
1842                 if (j != 0x16) {
1843                         atp_writeb_io(dev, c, 0x10, 0x41);
1844                         goto phase_cmd;
1845                 }
1846 sel_ok:
1847                 atp_writeb_io(dev, c, 3, inqd[0]);
1848                 atp_writeb_io(dev, c, 4, inqd[1]);
1849                 atp_writeb_io(dev, c, 5, inqd[2]);
1850                 atp_writeb_io(dev, c, 6, inqd[3]);
1851                 atp_writeb_io(dev, c, 7, inqd[4]);
1852                 atp_writeb_io(dev, c, 8, inqd[5]);
1853                 atp_writeb_io(dev, c, 0x0f, 0);
1854                 atp_writeb_io(dev, c, 0x11, dev->id[c][i].devsp);
1855                 atp_writeb_io(dev, c, 0x12, 0);
1856                 atp_writeb_io(dev, c, 0x13, inqd[6]);
1857                 atp_writeb_io(dev, c, 0x14, inqd[7]);
1858                 atp_writeb_io(dev, c, 0x18, inqd[8]);
1859
1860                 while ((atp_readb_io(dev, c, 0x1f) & 0x80) == 0x00)
1861                         cpu_relax();
1862
1863                 if (atp_readb_io(dev, c, 0x17) != 0x11 && atp_readb_io(dev, c, 0x17) != 0x8e)
1864                         continue;
1865
1866                 while (atp_readb_io(dev, c, 0x17) != 0x8e)
1867                         cpu_relax();
1868
1869                 if (wide_chip)
1870                         atp_writeb_io(dev, c, 0x1b, 0x00);
1871
1872                 atp_writeb_io(dev, c, 0x18, 0x08);
1873                 j = 0;
1874 rd_inq_data:
1875                 k = atp_readb_io(dev, c, 0x1f);
1876                 if ((k & 0x01) != 0) {
1877                         mbuf[j++] = atp_readb_io(dev, c, 0x19);
1878                         goto rd_inq_data;
1879                 }
1880                 if ((k & 0x80) == 0) {
1881                         goto rd_inq_data;
1882                 }
1883                 j = atp_readb_io(dev, c, 0x17);
1884                 if (j == 0x16) {
1885                         goto inq_ok;
1886                 }
1887                 atp_writeb_io(dev, c, 0x10, 0x46);
1888                 atp_writeb_io(dev, c, 0x12, 0);
1889                 atp_writeb_io(dev, c, 0x13, 0);
1890                 atp_writeb_io(dev, c, 0x14, 0);
1891                 atp_writeb_io(dev, c, 0x18, 0x08);
1892
1893                 while ((atp_readb_io(dev, c, 0x1f) & 0x80) == 0x00)
1894                         cpu_relax();
1895
1896                 if (atp_readb_io(dev, c, 0x17) != 0x16)
1897                         goto sel_ok;
1898
1899 inq_ok:
1900                 mbuf[36] = 0;
1901                 printk(KERN_INFO "         ID: %2d  %s\n", i, &mbuf[8]);
1902                 dev->id[c][i].devtype = mbuf[0];
1903                 rmb = mbuf[1];
1904                 n = mbuf[7];
1905                 if (!wide_chip)
1906                         goto not_wide;
1907                 if ((mbuf[7] & 0x60) == 0) {
1908                         goto not_wide;
1909                 }
1910                 if (is885(dev) || is880(dev)) {
1911                         if ((i < 8) && ((dev->global_map[c] & 0x20) == 0))
1912                                 goto not_wide;
1913                 } else { /* result of is870() merge - is this a bug? */
1914                         if ((dev->global_map[c] & 0x20) == 0)
1915                                 goto not_wide;
1916                 }
1917                 if (lvdmode == 0) {
1918                         goto chg_wide;
1919                 }
1920                 if (dev->sp[c][i] != 0x04)      // force u2
1921                 {
1922                         goto chg_wide;
1923                 }
1924
1925                 atp_writeb_io(dev, c, 0x1b, 0x01);
1926                 atp_writeb_io(dev, c, 3, satn[0]);
1927                 atp_writeb_io(dev, c, 4, satn[1]);
1928                 atp_writeb_io(dev, c, 5, satn[2]);
1929                 atp_writeb_io(dev, c, 6, satn[3]);
1930                 atp_writeb_io(dev, c, 7, satn[4]);
1931                 atp_writeb_io(dev, c, 8, satn[5]);
1932                 atp_writeb_io(dev, c, 0x0f, 0);
1933                 atp_writeb_io(dev, c, 0x11, dev->id[c][i].devsp);
1934                 atp_writeb_io(dev, c, 0x12, 0);
1935                 atp_writeb_io(dev, c, 0x13, satn[6]);
1936                 atp_writeb_io(dev, c, 0x14, satn[7]);
1937                 atp_writeb_io(dev, c, 0x18, satn[8]);
1938
1939                 while ((atp_readb_io(dev, c, 0x1f) & 0x80) == 0x00)
1940                         cpu_relax();
1941
1942                 if (atp_readb_io(dev, c, 0x17) != 0x11 && atp_readb_io(dev, c, 0x17) != 0x8e)
1943                         continue;
1944
1945                 while (atp_readb_io(dev, c, 0x17) != 0x8e)
1946                         cpu_relax();
1947
1948 try_u3:
1949                 j = 0;
1950                 atp_writeb_io(dev, c, 0x14, 0x09);
1951                 atp_writeb_io(dev, c, 0x18, 0x20);
1952
1953                 while ((atp_readb_io(dev, c, 0x1f) & 0x80) == 0) {
1954                         if ((atp_readb_io(dev, c, 0x1f) & 0x01) != 0)
1955                                 atp_writeb_io(dev, c, 0x19, u3[j++]);
1956                         cpu_relax();
1957                 }
1958
1959                 while ((atp_readb_io(dev, c, 0x17) & 0x80) == 0x00)
1960                         cpu_relax();
1961
1962                 j = atp_readb_io(dev, c, 0x17) & 0x0f;
1963                 if (j == 0x0f) {
1964                         goto u3p_in;
1965                 }
1966                 if (j == 0x0a) {
1967                         goto u3p_cmd;
1968                 }
1969                 if (j == 0x0e) {
1970                         goto try_u3;
1971                 }
1972                 continue;
1973 u3p_out:
1974                 atp_writeb_io(dev, c, 0x18, 0x20);
1975                 while ((atp_readb_io(dev, c, 0x1f) & 0x80) == 0) {
1976                         if ((atp_readb_io(dev, c, 0x1f) & 0x01) != 0)
1977                                 atp_writeb_io(dev, c, 0x19, 0);
1978                         cpu_relax();
1979                 }
1980                 j = atp_readb_io(dev, c, 0x17) & 0x0f;
1981                 if (j == 0x0f) {
1982                         goto u3p_in;
1983                 }
1984                 if (j == 0x0a) {
1985                         goto u3p_cmd;
1986                 }
1987                 if (j == 0x0e) {
1988                         goto u3p_out;
1989                 }
1990                 continue;
1991 u3p_in:
1992                 atp_writeb_io(dev, c, 0x14, 0x09);
1993                 atp_writeb_io(dev, c, 0x18, 0x20);
1994                 k = 0;
1995 u3p_in1:
1996                 j = atp_readb_io(dev, c, 0x1f);
1997                 if ((j & 0x01) != 0) {
1998                         mbuf[k++] = atp_readb_io(dev, c, 0x19);
1999                         goto u3p_in1;
2000                 }
2001                 if ((j & 0x80) == 0x00) {
2002                         goto u3p_in1;
2003                 }
2004                 j = atp_readb_io(dev, c, 0x17) & 0x0f;
2005                 if (j == 0x0f) {
2006                         goto u3p_in;
2007                 }
2008                 if (j == 0x0a) {
2009                         goto u3p_cmd;
2010                 }
2011                 if (j == 0x0e) {
2012                         goto u3p_out;
2013                 }
2014                 continue;
2015 u3p_cmd:
2016                 atp_writeb_io(dev, c, 0x10, 0x30);
2017                 atp_writeb_io(dev, c, 0x14, 0x00);
2018                 atp_writeb_io(dev, c, 0x18, 0x08);
2019
2020                 while ((atp_readb_io(dev, c, 0x1f) & 0x80) == 0x00);
2021
2022                 j = atp_readb_io(dev, c, 0x17);
2023                 if (j != 0x16) {
2024                         if (j == 0x4e) {
2025                                 goto u3p_out;
2026                         }
2027                         continue;
2028                 }
2029                 if (mbuf[0] != 0x01) {
2030                         goto chg_wide;
2031                 }
2032                 if (mbuf[1] != 0x06) {
2033                         goto chg_wide;
2034                 }
2035                 if (mbuf[2] != 0x04) {
2036                         goto chg_wide;
2037                 }
2038                 if (mbuf[3] == 0x09) {
2039                         m = 1;
2040                         m = m << i;
2041                         dev->wide_id[c] |= m;
2042                         dev->id[c][i].devsp = 0xce;
2043 #ifdef ED_DBGP
2044                         printk("dev->id[%2d][%2d].devsp = %2x\n",
2045                                c, i, dev->id[c][i].devsp);
2046 #endif
2047                         continue;
2048                 }
2049 chg_wide:
2050                 atp_writeb_io(dev, c, 0x1b, 0x01);
2051                 atp_writeb_io(dev, c, 3, satn[0]);
2052                 atp_writeb_io(dev, c, 4, satn[1]);
2053                 atp_writeb_io(dev, c, 5, satn[2]);
2054                 atp_writeb_io(dev, c, 6, satn[3]);
2055                 atp_writeb_io(dev, c, 7, satn[4]);
2056                 atp_writeb_io(dev, c, 8, satn[5]);
2057                 atp_writeb_io(dev, c, 0x0f, 0);
2058                 atp_writeb_io(dev, c, 0x11, dev->id[c][i].devsp);
2059                 atp_writeb_io(dev, c, 0x12, 0);
2060                 atp_writeb_io(dev, c, 0x13, satn[6]);
2061                 atp_writeb_io(dev, c, 0x14, satn[7]);
2062                 atp_writeb_io(dev, c, 0x18, satn[8]);
2063
2064                 while ((atp_readb_io(dev, c, 0x1f) & 0x80) == 0x00)
2065                         cpu_relax();
2066
2067                 if (atp_readb_io(dev, c, 0x17) != 0x11 &&
2068                     atp_readb_io(dev, c, 0x17) != 0x8e)
2069                         continue;
2070
2071                 while (atp_readb_io(dev, c, 0x17) != 0x8e)
2072                         cpu_relax();
2073
2074 try_wide:
2075                 j = 0;
2076                 atp_writeb_io(dev, c, 0x14, 0x05);
2077                 atp_writeb_io(dev, c, 0x18, 0x20);
2078
2079                 while ((atp_readb_io(dev, c, 0x1f) & 0x80) == 0) {
2080                         if ((atp_readb_io(dev, c, 0x1f) & 0x01) != 0)
2081                                 atp_writeb_io(dev, c, 0x19, wide[j++]);
2082                         cpu_relax();
2083                 }
2084
2085                 while ((atp_readb_io(dev, c, 0x17) & 0x80) == 0x00)
2086                         cpu_relax();
2087
2088                 j = atp_readb_io(dev, c, 0x17) & 0x0f;
2089                 if (j == 0x0f) {
2090                         goto widep_in;
2091                 }
2092                 if (j == 0x0a) {
2093                         goto widep_cmd;
2094                 }
2095                 if (j == 0x0e) {
2096                         goto try_wide;
2097                 }
2098                 continue;
2099 widep_out:
2100                 atp_writeb_io(dev, c, 0x18, 0x20);
2101                 while ((atp_readb_io(dev, c, 0x1f) & 0x80) == 0) {
2102                         if ((atp_readb_io(dev, c, 0x1f) & 0x01) != 0)
2103                                 atp_writeb_io(dev, c, 0x19, 0);
2104                         cpu_relax();
2105                 }
2106                 j = atp_readb_io(dev, c, 0x17) & 0x0f;
2107                 if (j == 0x0f) {
2108                         goto widep_in;
2109                 }
2110                 if (j == 0x0a) {
2111                         goto widep_cmd;
2112                 }
2113                 if (j == 0x0e) {
2114                         goto widep_out;
2115                 }
2116                 continue;
2117 widep_in:
2118                 atp_writeb_io(dev, c, 0x14, 0xff);
2119                 atp_writeb_io(dev, c, 0x18, 0x20);
2120                 k = 0;
2121 widep_in1:
2122                 j = atp_readb_io(dev, c, 0x1f);
2123                 if ((j & 0x01) != 0) {
2124                         mbuf[k++] = atp_readb_io(dev, c, 0x19);
2125                         goto widep_in1;
2126                 }
2127                 if ((j & 0x80) == 0x00) {
2128                         goto widep_in1;
2129                 }
2130                 j = atp_readb_io(dev, c, 0x17) & 0x0f;
2131                 if (j == 0x0f) {
2132                         goto widep_in;
2133                 }
2134                 if (j == 0x0a) {
2135                         goto widep_cmd;
2136                 }
2137                 if (j == 0x0e) {
2138                         goto widep_out;
2139                 }
2140                 continue;
2141 widep_cmd:
2142                 atp_writeb_io(dev, c, 0x10, 0x30);
2143                 atp_writeb_io(dev, c, 0x14, 0x00);
2144                 atp_writeb_io(dev, c, 0x18, 0x08);
2145
2146                 while ((atp_readb_io(dev, c, 0x1f) & 0x80) == 0x00)
2147                         cpu_relax();
2148
2149                 j = atp_readb_io(dev, c, 0x17);
2150                 if (j != 0x16) {
2151                         if (j == 0x4e) {
2152                                 goto widep_out;
2153                         }
2154                         continue;
2155                 }
2156                 if (mbuf[0] != 0x01) {
2157                         goto not_wide;
2158                 }
2159                 if (mbuf[1] != 0x02) {
2160                         goto not_wide;
2161                 }
2162                 if (mbuf[2] != 0x03) {
2163                         goto not_wide;
2164                 }
2165                 if (mbuf[3] != 0x01) {
2166                         goto not_wide;
2167                 }
2168                 m = 1;
2169                 m = m << i;
2170                 dev->wide_id[c] |= m;
2171 not_wide:
2172                 if ((dev->id[c][i].devtype == 0x00) ||
2173                     (dev->id[c][i].devtype == 0x07) ||
2174                     ((dev->id[c][i].devtype == 0x05) && ((n & 0x10) != 0))) {
2175                         m = 1;
2176                         m = m << i;
2177                         if ((dev->async[c] & m) != 0) {
2178                                 goto set_sync;
2179                         }
2180                 }
2181                 continue;
2182 set_sync:
2183                 if ((!is885(dev) && !is880(dev)) || (dev->sp[c][i] == 0x02)) {
2184                         synu[4] = 0x0c;
2185                         synuw[4] = 0x0c;
2186                 } else {
2187                         if (dev->sp[c][i] >= 0x03) {
2188                                 synu[4] = 0x0a;
2189                                 synuw[4] = 0x0a;
2190                         }
2191                 }
2192                 j = 0;
2193                 if ((m & dev->wide_id[c]) != 0) {
2194                         j |= 0x01;
2195                 }
2196                 atp_writeb_io(dev, c, 0x1b, j);
2197                 atp_writeb_io(dev, c, 3, satn[0]);
2198                 atp_writeb_io(dev, c, 4, satn[1]);
2199                 atp_writeb_io(dev, c, 5, satn[2]);
2200                 atp_writeb_io(dev, c, 6, satn[3]);
2201                 atp_writeb_io(dev, c, 7, satn[4]);
2202                 atp_writeb_io(dev, c, 8, satn[5]);
2203                 atp_writeb_io(dev, c, 0x0f, 0);
2204                 atp_writeb_io(dev, c, 0x11, dev->id[c][i].devsp);
2205                 atp_writeb_io(dev, c, 0x12, 0);
2206                 atp_writeb_io(dev, c, 0x13, satn[6]);
2207                 atp_writeb_io(dev, c, 0x14, satn[7]);
2208                 atp_writeb_io(dev, c, 0x18, satn[8]);
2209
2210                 while ((atp_readb_io(dev, c, 0x1f) & 0x80) == 0x00)
2211                         cpu_relax();
2212
2213                 if (atp_readb_io(dev, c, 0x17) != 0x11 &&
2214                     atp_readb_io(dev, c, 0x17) != 0x8e)
2215                         continue;
2216
2217                 while (atp_readb_io(dev, c, 0x17) != 0x8e)
2218                         cpu_relax();
2219
2220 try_sync:
2221                 j = 0;
2222                 atp_writeb_io(dev, c, 0x14, 0x06);
2223                 atp_writeb_io(dev, c, 0x18, 0x20);
2224
2225                 while ((atp_readb_io(dev, c, 0x1f) & 0x80) == 0) {
2226                         if ((atp_readb_io(dev, c, 0x1f) & 0x01) != 0) {
2227                                 if ((m & dev->wide_id[c]) != 0) {
2228                                         if (is885(dev) || is880(dev)) {
2229                                                 if ((m & dev->ultra_map[c]) != 0) {
2230                                                         atp_writeb_io(dev, c, 0x19, synuw[j++]);
2231                                                 } else {
2232                                                         atp_writeb_io(dev, c, 0x19, synw[j++]);
2233                                                 }
2234                                         } else
2235                                                 atp_writeb_io(dev, c, 0x19, synw_870[j++]);
2236                                 } else {
2237                                         if ((m & dev->ultra_map[c]) != 0) {
2238                                                 atp_writeb_io(dev, c, 0x19, synu[j++]);
2239                                         } else {
2240                                                 atp_writeb_io(dev, c, 0x19, synn[j++]);
2241                                         }
2242                                 }
2243                         }
2244                 }
2245
2246                 while ((atp_readb_io(dev, c, 0x17) & 0x80) == 0x00)
2247                         cpu_relax();
2248
2249                 j = atp_readb_io(dev, c, 0x17) & 0x0f;
2250                 if (j == 0x0f) {
2251                         goto phase_ins;
2252                 }
2253                 if (j == 0x0a) {
2254                         goto phase_cmds;
2255                 }
2256                 if (j == 0x0e) {
2257                         goto try_sync;
2258                 }
2259                 continue;
2260 phase_outs:
2261                 atp_writeb_io(dev, c, 0x18, 0x20);
2262                 while ((atp_readb_io(dev, c, 0x1f) & 0x80) == 0x00) {
2263                         if ((atp_readb_io(dev, c, 0x1f) & 0x01) != 0x00)
2264                                 atp_writeb_io(dev, c, 0x19, 0x00);
2265                         cpu_relax();
2266                 }
2267                 j = atp_readb_io(dev, c, 0x17);
2268                 if (j == 0x85) {
2269                         goto tar_dcons;
2270                 }
2271                 j &= 0x0f;
2272                 if (j == 0x0f) {
2273                         goto phase_ins;
2274                 }
2275                 if (j == 0x0a) {
2276                         goto phase_cmds;
2277                 }
2278                 if (j == 0x0e) {
2279                         goto phase_outs;
2280                 }
2281                 continue;
2282 phase_ins:
2283                 if (is885(dev) || is880(dev))
2284                         atp_writeb_io(dev, c, 0x14, 0x06);
2285                 else
2286                         atp_writeb_io(dev, c, 0x14, 0xff);
2287                 atp_writeb_io(dev, c, 0x18, 0x20);
2288                 k = 0;
2289 phase_ins1:
2290                 j = atp_readb_io(dev, c, 0x1f);
2291                 if ((j & 0x01) != 0x00) {
2292                         mbuf[k++] = atp_readb_io(dev, c, 0x19);
2293                         goto phase_ins1;
2294                 }
2295                 if ((j & 0x80) == 0x00) {
2296                         goto phase_ins1;
2297                 }
2298
2299                 while ((atp_readb_io(dev, c, 0x17) & 0x80) == 0x00);
2300
2301                 j = atp_readb_io(dev, c, 0x17);
2302                 if (j == 0x85) {
2303                         goto tar_dcons;
2304                 }
2305                 j &= 0x0f;
2306                 if (j == 0x0f) {
2307                         goto phase_ins;
2308                 }
2309                 if (j == 0x0a) {
2310                         goto phase_cmds;
2311                 }
2312                 if (j == 0x0e) {
2313                         goto phase_outs;
2314                 }
2315                 continue;
2316 phase_cmds:
2317                 atp_writeb_io(dev, c, 0x10, 0x30);
2318 tar_dcons:
2319                 atp_writeb_io(dev, c, 0x14, 0x00);
2320                 atp_writeb_io(dev, c, 0x18, 0x08);
2321
2322                 while ((atp_readb_io(dev, c, 0x1f) & 0x80) == 0x00)
2323                         cpu_relax();
2324
2325                 j = atp_readb_io(dev, c, 0x17);
2326                 if (j != 0x16) {
2327                         continue;
2328                 }
2329                 if (mbuf[0] != 0x01) {
2330                         continue;
2331                 }
2332                 if (mbuf[1] != 0x03) {
2333                         continue;
2334                 }
2335                 if (mbuf[4] == 0x00) {
2336                         continue;
2337                 }
2338                 if (mbuf[3] > 0x64) {
2339                         continue;
2340                 }
2341                 if (is885(dev) || is880(dev)) {
2342                         if (mbuf[4] > 0x0e) {
2343                                 mbuf[4] = 0x0e;
2344                         }
2345                 } else {
2346                         if (mbuf[4] > 0x0c) {
2347                                 mbuf[4] = 0x0c;
2348                         }
2349                 }
2350                 dev->id[c][i].devsp = mbuf[4];
2351                 if (is885(dev) || is880(dev))
2352                         if (mbuf[3] < 0x0c) {
2353                                 j = 0xb0;
2354                                 goto set_syn_ok;
2355                         }
2356                 if ((mbuf[3] < 0x0d) && (rmb == 0)) {
2357                         j = 0xa0;
2358                         goto set_syn_ok;
2359                 }
2360                 if (mbuf[3] < 0x1a) {
2361                         j = 0x20;
2362                         goto set_syn_ok;
2363                 }
2364                 if (mbuf[3] < 0x33) {
2365                         j = 0x40;
2366                         goto set_syn_ok;
2367                 }
2368                 if (mbuf[3] < 0x4c) {
2369                         j = 0x50;
2370                         goto set_syn_ok;
2371                 }
2372                 j = 0x60;
2373 set_syn_ok:
2374                 dev->id[c][i].devsp = (dev->id[c][i].devsp & 0x0f) | j;
2375 #ifdef ED_DBGP
2376                 printk("dev->id[%2d][%2d].devsp = %2x\n",
2377                        c,i,dev->id[c][i].devsp);
2378 #endif
2379         }
2380 }