linux/drivers/scsi/atp870u.c
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   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
  43static struct scsi_host_template atp870u_template;
  44static void send_s870(struct atp_unit *dev,unsigned char c);
  45static void atp_is(struct atp_unit *dev, unsigned char c, bool wide_chip,
  46                   unsigned char lvdmode);
  47
  48static inline void atp_writeb_base(struct atp_unit *atp, u8 reg, u8 val)
  49{
  50        outb(val, atp->baseport + reg);
  51}
  52
  53static inline void atp_writew_base(struct atp_unit *atp, u8 reg, u16 val)
  54{
  55        outw(val, atp->baseport + reg);
  56}
  57
  58static 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
  63static 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
  68static 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
  73static 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
  78static inline u8 atp_readb_base(struct atp_unit *atp, u8 reg)
  79{
  80        return inb(atp->baseport + reg);
  81}
  82
  83static inline u16 atp_readw_base(struct atp_unit *atp, u8 reg)
  84{
  85        return inw(atp->baseport + reg);
  86}
  87
  88static inline u32 atp_readl_base(struct atp_unit *atp, u8 reg)
  89{
  90        return inl(atp->baseport + reg);
  91}
  92
  93static inline u8 atp_readb_io(struct atp_unit *atp, u8 channel, u8 reg)
  94{
  95        return inb(atp->ioport[channel] + reg);
  96}
  97
  98static inline u16 atp_readw_io(struct atp_unit *atp, u8 channel, u8 reg)
  99{
 100        return inw(atp->ioport[channel] + reg);
 101}
 102
 103static inline u8 atp_readb_pci(struct atp_unit *atp, u8 channel, u8 reg)
 104{
 105        return inb(atp->pciport[channel] + reg);
 106}
 107
 108static inline bool is880(struct atp_unit *atp)
 109{
 110        return atp->pdev->device == ATP880_DEVID1 ||
 111               atp->pdev->device == ATP880_DEVID2;
 112}
 113
 114static inline bool is885(struct atp_unit *atp)
 115{
 116        return atp->pdev->device == ATP885_DEVID;
 117}
 118
 119static 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 */
 620static 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
 700static 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 */
 710static 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
 981static 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
1014static 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
1236static 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
1252static 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
1293static 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
1305static 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
1357static 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
1443static 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 */
1555static 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
1625scsi_add_fail:
1626        free_irq(shpnt->irq, shpnt);
1627free_tables:
1628        atp870u_free_tables(shpnt);
1629unregister:
1630        scsi_host_put(shpnt);
1631release_region:
1632        pci_release_regions(pdev);
1633disable_device:
1634        pci_disable_device(pdev);
1635fail:
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
1643static 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
1676static 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
1685static 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
1695static 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
1715static 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}
1727MODULE_LICENSE("GPL");
1728
1729static 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
1744static 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
1758MODULE_DEVICE_TABLE(pci, atp870u_id_table);
1759
1760static struct pci_driver atp870u_driver = {
1761        .id_table       = atp870u_id_table,
1762        .name           = "atp870u",
1763        .probe          = atp870u_probe,
1764        .remove         = atp870u_remove,
1765};
1766
1767module_pci_driver(atp870u_driver);
1768
1769static 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
1835phase_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                }
1846sel_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;
1874rd_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
1899inq_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
1948try_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;
1973u3p_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;
1991u3p_in:
1992                atp_writeb_io(dev, c, 0x14, 0x09);
1993                atp_writeb_io(dev, c, 0x18, 0x20);
1994                k = 0;
1995u3p_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;
2015u3p_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                }
2049chg_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
2074try_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;
2099widep_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;
2117widep_in:
2118                atp_writeb_io(dev, c, 0x14, 0xff);
2119                atp_writeb_io(dev, c, 0x18, 0x20);
2120                k = 0;
2121widep_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;
2141widep_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;
2171not_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;
2182set_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
2220try_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;
2260phase_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;
2282phase_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;
2289phase_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;
2316phase_cmds:
2317                atp_writeb_io(dev, c, 0x10, 0x30);
2318tar_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;
2373set_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}
2381