drivers/scsi/g_NCR5380.c

   1 /*
   2  * Generic Generic NCR5380 driver
   3  *
   4  * Copyright 1993, Drew Eckhardt
   5  *      Visionary Computing
   6  *      (Unix and Linux consulting and custom programming)
   7  *      drew@colorado.edu
   8  *      +1 (303) 440-4894
   9  *
  10  * NCR53C400 extensions (c) 1994,1995,1996, Kevin Lentin
  11  *    K.Lentin@cs.monash.edu.au
  12  *
  13  * ALPHA RELEASE 1.
  14  *
  15  * For more information, please consult
  16  *
  17  * NCR 5380 Family
  18  * SCSI Protocol Controller
  19  * Databook
  20  *
  21  * NCR Microelectronics
  22  * 1635 Aeroplaza Drive
  23  * Colorado Springs, CO 80916
  24  * 1+ (719) 578-3400
  25  * 1+ (800) 334-5454
  26  */
  27
  28 /*
  29  * TODO : flesh out DMA support, find some one actually using this (I have
  30  *      a memory mapped Trantor board that works fine)
  31  */
  32
  33 /*
  34  * Options :
  35  *
  36  * PARITY - enable parity checking.  Not supported.
  37  *
  38  * SCSI2 - enable support for SCSI-II tagged queueing.  Untested.
  39  *
  40  * USLEEP - enable support for devices that don't disconnect.  Untested.
  41  *
  42  * The card is detected and initialized in one of several ways :
  43  * 1.  With command line overrides - NCR5380=port,irq may be
  44  *     used on the LILO command line to override the defaults.
  45  *
  46  * 2.  With the GENERIC_NCR5380_OVERRIDE compile time define.  This is
  47  *     specified as an array of address, irq, dma, board tuples.  Ie, for
  48  *     one board at 0x350, IRQ5, no dma, I could say
  49  *     -DGENERIC_NCR5380_OVERRIDE={{0xcc000, 5, DMA_NONE, BOARD_NCR5380}}
  50  *
  51  * -1 should be specified for no or DMA interrupt, -2 to autoprobe for an
  52  *      IRQ line if overridden on the command line.
  53  *
  54  * 3.  When included as a module, with arguments passed on the command line:
  55  *         ncr_irq=xx   the interrupt
  56  *         ncr_addr=xx  the port or base address (for port or memory
  57  *                      mapped, resp.)
  58  *         ncr_dma=xx   the DMA
  59  *         ncr_5380=1   to set up for a NCR5380 board
  60  *         ncr_53c400=1 to set up for a NCR53C400 board
  61  *     e.g.
  62  *     modprobe g_NCR5380 ncr_irq=5 ncr_addr=0x350 ncr_5380=1
  63  *       for a port mapped NCR5380 board or
  64  *     modprobe g_NCR5380 ncr_irq=255 ncr_addr=0xc8000 ncr_53c400=1
  65  *       for a memory mapped NCR53C400 board with interrupts disabled.
  66  *
  67  * 255 should be specified for no or DMA interrupt, 254 to autoprobe for an
  68  *      IRQ line if overridden on the command line.
  69  *
  70  */
  71
  72 /*
  73  * $Log: generic_NCR5380.c,v $
  74  */
  75
  76 #define AUTOPROBE_IRQ
  77 #define AUTOSENSE
  78
  79 #include <linux/config.h>
  80
  81 #ifdef CONFIG_SCSI_GENERIC_NCR53C400
  82 #define NCR53C400_PSEUDO_DMA 1
  83 #define PSEUDO_DMA
  84 #define NCR53C400
  85 #define NCR5380_STATS
  86 #undef NCR5380_STAT_LIMIT
  87 #endif
  88 #if defined(CONFIG_SCSI_G_NCR5380_PORT) && defined(CONFIG_SCSI_G_NCR5380_MEM)
  89 #error You can not configure the Generic NCR 5380 SCSI Driver for memory mapped I/O and port mapped I/O at the same time (yet)
  90 #endif
  91 #if !defined(CONFIG_SCSI_G_NCR5380_PORT) && !defined(CONFIG_SCSI_G_NCR5380_MEM)
  92 #error You must configure the Generic NCR 5380 SCSI Driver for one of memory mapped I/O and port mapped I/O.
  93 #endif
  94
  95 #include <asm/system.h>
  96 #include <asm/io.h>
  97 #include <linux/signal.h>
  98 #include <linux/sched.h>
  99 #include <linux/blk.h>
 100 #include "scsi.h"
 101 #include "hosts.h"
 102 #include "g_NCR5380.h"
 103 #include "NCR5380.h"
 104 #include "constants.h"
 105 #include "sd.h"
 106 #include <linux/stat.h>
 107 #include <linux/init.h>
 108
 109 struct proc_dir_entry proc_scsi_g_ncr5380 = {
 110     PROC_SCSI_GENERIC_NCR5380, 9, "g_NCR5380",
 111     S_IFDIR | S_IRUGO | S_IXUGO, 2
 112 };
 113
 114 #define NCR_NOT_SET 0
 115 static int ncr_irq=NCR_NOT_SET;
 116 static int ncr_dma=NCR_NOT_SET;
 117 static int ncr_addr=NCR_NOT_SET;
 118 static int ncr_5380=NCR_NOT_SET;
 119 static int ncr_53c400=NCR_NOT_SET;
 120
 121 static struct override {
 122         NCR5380_implementation_fields;
 123     int irq;
 124     int dma;
 125     int board;  /* Use NCR53c400, Ricoh, etc. extensions ? */
 126 } overrides
 127 #ifdef GENERIC_NCR5380_OVERRIDE
 128     [] __initdata = GENERIC_NCR5380_OVERRIDE
 129 #else
 130     [1] __initdata = {{0,},};
 131 #endif
 132
 133 #define NO_OVERRIDES (sizeof(overrides) / sizeof(struct override))
 134
 135 /*
 136  * Function : static internal_setup(int board, char *str, int *ints)
 137  *
 138  * Purpose : LILO command line initialization of the overrides array,
 139  *
 140  * Inputs : board - either BOARD_NCR5380 for a normal NCR5380 board,
 141  *      or BOARD_NCR53C400 for a NCR53C400 board. str - unused, ints -
 142  *      array of integer parameters with ints[0] equal to the number of ints.
 143  *
 144  */
 145
 146 __initfunc(static void internal_setup(int board, char *str, int *ints)) {
 147     static int commandline_current = 0;
 148     switch (board) {
 149     case BOARD_NCR5380:
 150         if (ints[0] != 2 && ints[0] != 3) {
 151             printk("generic_NCR5380_setup : usage ncr5380=" STRVAL(NCR5380_map_name) ",irq,dma\n");
 152             return;
 153         }
 154     case BOARD_NCR53C400:
 155         if (ints[0] != 2) {
 156             printk("generic_NCR53C400_setup : usage ncr53c400=" STRVAL(NCR5380_map_name) ",irq\n");
 157             return;
 158         }
 159     }
 160
 161     if (commandline_current < NO_OVERRIDES) {
 162         overrides[commandline_current].NCR5380_map_name = (NCR5380_map_type)ints[1];
 163         overrides[commandline_current].irq = ints[2];
 164         if (ints[0] == 3)
 165             overrides[commandline_current].dma = ints[3];
 166         else
 167             overrides[commandline_current].dma = DMA_NONE;
 168         overrides[commandline_current].board = board;
 169             ++commandline_current;
 170     }
 171 }
 172
 173 /*
 174  * Function : generic_NCR5380_setup (char *str, int *ints)
 175  *
 176  * Purpose : LILO command line initialization of the overrides array,
 177  *
 178  * Inputs : str - unused, ints - array of integer parameters with ints[0]
 179  *      equal to the number of ints.
 180  */
 181
 182 __initfunc(void generic_NCR5380_setup (char *str, int *ints)) {
 183     internal_setup (BOARD_NCR5380, str, ints);
 184 }
 185
 186 /*
 187  * Function : generic_NCR53C400_setup (char *str, int *ints)
 188  *
 189  * Purpose : LILO command line initialization of the overrides array,
 190  *
 191  * Inputs : str - unused, ints - array of integer parameters with ints[0]
 192  *      equal to the number of ints.
 193  */
 194
 195 __initfunc(void generic_NCR53C400_setup (char *str, int *ints)) {
 196     internal_setup (BOARD_NCR53C400, str, ints);
 197 }
 198
 199 /*
 200  * Function : int generic_NCR5380_detect(Scsi_Host_Template * tpnt)
 201  *
 202  * Purpose : initializes generic NCR5380 driver based on the
 203  *      command line / compile time port and irq definitions.
 204  *
 205  * Inputs : tpnt - template for this SCSI adapter.
 206  *
 207  * Returns : 1 if a host adapter was found, 0 if not.
 208  *
 209  */
 210
 211 __initfunc(int generic_NCR5380_detect(Scsi_Host_Template * tpnt)) {
 212     static int current_override = 0;
 213     int count;
 214     int flags = 0;
 215     struct Scsi_Host *instance;
 216
 217     if (ncr_irq != NCR_NOT_SET)
 218         overrides[0].irq=ncr_irq;
 219     if (ncr_dma != NCR_NOT_SET)
 220         overrides[0].dma=ncr_dma;
 221     if (ncr_addr != NCR_NOT_SET)
 222         overrides[0].NCR5380_map_name=(NCR5380_map_type)ncr_addr;
 223     if (ncr_5380 != NCR_NOT_SET)
 224         overrides[0].board=BOARD_NCR5380;
 225     else if (ncr_53c400 != NCR_NOT_SET)
 226         overrides[0].board=BOARD_NCR53C400;
 227
 228     tpnt->proc_dir = &proc_scsi_g_ncr5380;
 229
 230     for (count = 0; current_override < NO_OVERRIDES; ++current_override) {
 231         if (!(overrides[current_override].NCR5380_map_name))
 232             continue;
 233
 234         switch (overrides[current_override].board) {
 235         case BOARD_NCR5380:
 236             flags = FLAG_NO_PSEUDO_DMA;
 237             break;
 238         case BOARD_NCR53C400:
 239             flags = FLAG_NCR53C400;
 240             break;
 241         }
 242
 243         instance = scsi_register (tpnt, sizeof(struct NCR5380_hostdata));
 244         instance->NCR5380_instance_name = overrides[current_override].NCR5380_map_name;
 245
 246         NCR5380_init(instance, flags);
 247
 248         if (overrides[current_override].irq != IRQ_AUTO)
 249             instance->irq = overrides[current_override].irq;
 250         else
 251             instance->irq = NCR5380_probe_irq(instance, 0xffff);
 252
 253         if (instance->irq != IRQ_NONE)
 254             if (request_irq(instance->irq, generic_NCR5380_intr, SA_INTERRUPT, "NCR5380", NULL)) {
 255                 printk("scsi%d : IRQ%d not free, interrupts disabled\n",
 256                     instance->host_no, instance->irq);
 257                 instance->irq = IRQ_NONE;
 258             }
 259
 260         if (instance->irq == IRQ_NONE) {
 261             printk("scsi%d : interrupts not enabled. for better interactive performance,\n", instance->host_no);
 262             printk("scsi%d : please jumper the board for a free IRQ.\n", instance->host_no);
 263         }
 264
 265         printk("scsi%d : at " STRVAL(NCR5380_map_name) " 0x%x", instance->host_no, (unsigned int)instance->NCR5380_instance_name);
 266         if (instance->irq == IRQ_NONE)
 267             printk (" interrupts disabled");
 268         else
 269             printk (" irq %d", instance->irq);
 270         printk(" options CAN_QUEUE=%d  CMD_PER_LUN=%d release=%d",
 271             CAN_QUEUE, CMD_PER_LUN, GENERIC_NCR5380_PUBLIC_RELEASE);
 272         NCR5380_print_options(instance);
 273         printk("\n");
 274
 275         ++current_override;
 276         ++count;
 277     }
 278     return count;
 279 }
 280
 281 const char * generic_NCR5380_info (struct Scsi_Host* host) {
 282     static const char string[]="Generic NCR5380/53C400 Driver";
 283     return string;
 284 }
 285
 286 int generic_NCR5380_release_resources(struct Scsi_Host * instance)
 287 {
 288     NCR5380_local_declare();
 289
 290     NCR5380_setup(instance);
 291
 292     if (instance->irq != IRQ_NONE)
 293         free_irq(instance->irq, NULL);
 294
 295         return 0;
 296 }
 297
 298 #ifdef BIOSPARAM
 299 /*
 300  * Function : int generic_NCR5380_biosparam(Disk * disk, kdev_t dev, int *ip)
 301  *
 302  * Purpose : Generates a BIOS / DOS compatible H-C-S mapping for
 303  *      the specified device / size.
 304  *
 305  * Inputs : size = size of device in sectors (512 bytes), dev = block device
 306  *      major / minor, ip[] = {heads, sectors, cylinders}
 307  *
 308  * Returns : always 0 (success), initializes ip
 309  *
 310  */
 311
 312 /*
 313  * XXX Most SCSI boards use this mapping, I could be incorrect.  Some one
 314  * using hard disks on a trantor should verify that this mapping corresponds
 315  * to that used by the BIOS / ASPI driver by running the linux fdisk program
 316  * and matching the H_C_S coordinates to what DOS uses.
 317  */
 318
 319 int generic_NCR5380_biosparam(Disk * disk, kdev_t dev, int *ip)
 320 {
 321   int size = disk->capacity;
 322   ip[0] = 64;
 323   ip[1] = 32;
 324   ip[2] = size >> 11;
 325   return 0;
 326 }
 327 #endif
 328
 329 #if NCR53C400_PSEUDO_DMA
 330 static inline int NCR5380_pread (struct Scsi_Host *instance, unsigned char *dst,    int len)
 331 {
 332     int blocks = len / 128;
 333     int start = 0;
 334     int bl;
 335 #ifdef CONFIG_SCSI_G_NCR5380_PORT
 336     int i;
 337 #endif
 338
 339     NCR5380_local_declare();
 340
 341     NCR5380_setup(instance);
 342
 343 #if (NDEBUG & NDEBUG_C400_PREAD)
 344     printk("53C400r: About to read %d blocks for %d bytes\n", blocks, len);
 345 #endif
 346
 347     NCR5380_write(C400_CONTROL_STATUS_REG, CSR_BASE | CSR_TRANS_DIR);
 348     NCR5380_write(C400_BLOCK_COUNTER_REG, blocks);
 349     while (1) {
 350
 351 #if (NDEBUG & NDEBUG_C400_PREAD)
 352         printk("53C400r: %d blocks left\n", blocks);
 353 #endif
 354
 355         if ((bl=NCR5380_read(C400_BLOCK_COUNTER_REG)) == 0) {
 356 #if (NDEBUG & NDEBUG_C400_PREAD)
 357             if (blocks)
 358                 printk("53C400r: blocks still == %d\n", blocks);
 359             else
 360                 printk("53C400r: Exiting loop\n");
 361 #endif
 362             break;
 363         }
 364
 365 #if 1
 366         if (NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_GATED_53C80_IRQ) {
 367             printk("53C400r: Got 53C80_IRQ start=%d, blocks=%d\n", start, blocks);
 368             return -1;
 369         }
 370 #endif
 371
 372 #if (NDEBUG & NDEBUG_C400_PREAD)
 373         printk("53C400r: Waiting for buffer, bl=%d\n", bl);
 374 #endif
 375
 376         while (NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_HOST_BUF_NOT_RDY)
 377             ;
 378 #if (NDEBUG & NDEBUG_C400_PREAD)
 379         printk("53C400r: Transferring 128 bytes\n");
 380 #endif
 381
 382 #ifdef CONFIG_SCSI_G_NCR5380_PORT
 383         for (i=0; i<128; i++)
 384             dst[start+i] = NCR5380_read(C400_HOST_BUFFER);
 385 #else
 386         /* implies CONFIG_SCSI_G_NCR5380_MEM */
 387         memmove(dst+start,NCR53C400_host_buffer+NCR5380_map_name,128);
 388 #endif
 389         start+=128;
 390         blocks--;
 391     }
 392
 393     if (blocks) {
 394 #if (NDEBUG & NDEBUG_C400_PREAD)
 395         printk("53C400r: EXTRA: Waiting for buffer\n");
 396 #endif
 397         while (NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_HOST_BUF_NOT_RDY)
 398             ;
 399
 400 #if (NDEBUG & NDEBUG_C400_PREAD)
 401         printk("53C400r: Transferring EXTRA 128 bytes\n");
 402 #endif
 403 #ifdef CONFIG_SCSI_G_NCR5380_PORT
 404         for (i=0; i<128; i++)
 405             dst[start+i] = NCR5380_read(C400_HOST_BUFFER);
 406 #else
 407         /* implies CONFIG_SCSI_G_NCR5380_MEM */
 408         memmove(dst+start,NCR53C400_host_buffer+NCR5380_map_name,128);
 409 #endif
 410         start+=128;
 411         blocks--;
 412     }
 413 #if (NDEBUG & NDEBUG_C400_PREAD)
 414     else
 415         printk("53C400r: No EXTRA required\n");
 416 #endif
 417
 418 #if (NDEBUG & NDEBUG_C400_PREAD)
 419     printk("53C400r: Final values: blocks=%d   start=%d\n", blocks, start);
 420 #endif
 421
 422     if (!(NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_GATED_53C80_IRQ))
 423         printk("53C400r: no 53C80 gated irq after transfer");
 424 #if (NDEBUG & NDEBUG_C400_PREAD)
 425     else
 426         printk("53C400r: Got 53C80 interrupt and tried to clear it\n");
 427 #endif
 428
 429 /* DON'T DO THIS - THEY NEVER ARRIVE!
 430     printk("53C400r: Waiting for 53C80 registers\n");
 431     while (NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_53C80_REG)
 432         ;
 433 */
 434
 435     if (!(NCR5380_read(BUS_AND_STATUS_REG) & BASR_END_DMA_TRANSFER))
 436         printk("53C400r: no end dma signal\n");
 437 #if (NDEBUG & NDEBUG_C400_PREAD)
 438     else
 439         printk("53C400r: end dma as expected\n");
 440 #endif
 441
 442     NCR5380_write(MODE_REG, MR_BASE);
 443     NCR5380_read(RESET_PARITY_INTERRUPT_REG);
 444     return 0;
 445 }
 446
 447 static inline int NCR5380_pwrite (struct Scsi_Host *instance, unsigned char *src,    int len)
 448 {
 449     int blocks = len / 128;
 450     int start = 0;
 451     int i;
 452     int bl;
 453     NCR5380_local_declare();
 454
 455     NCR5380_setup(instance);
 456
 457 #if (NDEBUG & NDEBUG_C400_PWRITE)
 458     printk("53C400w: About to write %d blocks for %d bytes\n", blocks, len);
 459 #endif
 460
 461     NCR5380_write(C400_CONTROL_STATUS_REG, CSR_BASE);
 462     NCR5380_write(C400_BLOCK_COUNTER_REG, blocks);
 463     while (1) {
 464         if (NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_GATED_53C80_IRQ) {
 465             printk("53C400w: Got 53C80_IRQ start=%d, blocks=%d\n", start, blocks);
 466             return -1;
 467         }
 468
 469         if ((bl=NCR5380_read(C400_BLOCK_COUNTER_REG)) == 0) {
 470 #if (NDEBUG & NDEBUG_C400_PWRITE)
 471             if (blocks)
 472                 printk("53C400w: exiting loop, blocks still == %d\n", blocks);
 473             else
 474                 printk("53C400w: exiting loop\n");
 475 #endif
 476             break;
 477         }
 478
 479 #if (NDEBUG & NDEBUG_C400_PWRITE)
 480         printk("53C400w: %d blocks left\n", blocks);
 481
 482         printk("53C400w: waiting for buffer, bl=%d\n", bl);
 483 #endif
 484         while (NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_HOST_BUF_NOT_RDY)
 485             ;
 486
 487 #if (NDEBUG & NDEBUG_C400_PWRITE)
 488         printk("53C400w: transferring 128 bytes\n");
 489 #endif
 490 #ifdef CONFIG_SCSI_G_NCR5380_PORT
 491         for (i=0; i<128; i++)
 492             NCR5380_write(C400_HOST_BUFFER, src[start+i]);
 493 #else
 494         /* implies CONFIG_SCSI_G_NCR5380_MEM */
 495         memmove(NCR53C400_host_buffer+NCR5380_map_name,src+start,128);
 496 #endif
 497         start+=128;
 498         blocks--;
 499     }
 500     if (blocks) {
 501 #if (NDEBUG & NDEBUG_C400_PWRITE)
 502         printk("53C400w: EXTRA waiting for buffer\n");
 503 #endif
 504         while (NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_HOST_BUF_NOT_RDY)
 505             ;
 506
 507 #if (NDEBUG & NDEBUG_C400_PWRITE)
 508         printk("53C400w: transferring EXTRA 128 bytes\n");
 509 #endif
 510 #ifdef CONFIG_SCSI_G_NCR5380_PORT
 511         for (i=0; i<128; i++)
 512             NCR5380_write(C400_HOST_BUFFER, src[start+i]);
 513 #else
 514         /* implies CONFIG_SCSI_G_NCR5380_MEM */
 515         memmove(NCR53C400_host_buffer+NCR5380_map_name,src+start,128);
 516 #endif
 517         start+=128;
 518         blocks--;
 519     }
 520 #if (NDEBUG & NDEBUG_C400_PWRITE)
 521     else
 522         printk("53C400w: No EXTRA required\n");
 523 #endif
 524
 525 #if (NDEBUG & NDEBUG_C400_PWRITE)
 526     printk("53C400w: Final values: blocks=%d   start=%d\n", blocks, start);
 527 #endif
 528
 529 #if 0
 530     printk("53C400w: waiting for registers to be available\n");
 531     THEY NEVER DO!
 532     while (NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_53C80_REG)
 533         ;
 534     printk("53C400w: Got em\n");
 535 #endif
 536
 537     /* Let's wait for this instead - could be ugly */
 538     /* All documentation says to check for this. Maybe my hardware is too
 539      * fast. Waiting for it seems to work fine! KLL
 540      */
 541     while (!(i = NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_GATED_53C80_IRQ))
 542         ;
 543
 544     /*
 545      * I know. i is certainly != 0 here but the loop is new. See previous
 546      * comment.
 547      */
 548     if (i) {
 549 #if (NDEBUG & NDEBUG_C400_PWRITE)
 550         printk("53C400w: got 53C80 gated irq (last block)\n");
 551 #endif
 552         if (!((i=NCR5380_read(BUS_AND_STATUS_REG)) & BASR_END_DMA_TRANSFER))
 553             printk("53C400w: No END OF DMA bit - WHOOPS! BASR=%0x\n",i);
 554 #if (NDEBUG & NDEBUG_C400_PWRITE)
 555         else
 556             printk("53C400w: Got END OF DMA\n");
 557 #endif
 558     }
 559     else
 560         printk("53C400w: no 53C80 gated irq after transfer (last block)\n");
 561
 562 #if 0
 563     if (!(NCR5380_read(BUS_AND_STATUS_REG) & BASR_END_DMA_TRANSFER)) {
 564         printk("53C400w: no end dma signal\n");
 565     }
 566 #endif
 567
 568 #if (NDEBUG & NDEBUG_C400_PWRITE)
 569     printk("53C400w: waiting for last byte...\n");
 570 #endif
 571     while (!(NCR5380_read(TARGET_COMMAND_REG) & TCR_LAST_BYTE_SENT))
 572         ;
 573
 574 #if (NDEBUG & NDEBUG_C400_PWRITE)
 575     printk("53C400w:     got last byte.\n");
 576     printk("53C400w: pwrite exiting with status 0, whoopee!\n");
 577 #endif
 578     return 0;
 579 }
 580 #endif /* PSEUDO_DMA */
 581
 582 #include "NCR5380.c"
 583
 584 #define PRINTP(x) len += sprintf(buffer+len, x)
 585 #define ANDP ,
 586
 587 static int sprint_opcode(char* buffer, int len, int opcode) {
 588     int start = len;
 589     PRINTP("0x%02x " ANDP opcode);
 590     return len-start;
 591 }
 592
 593 static int sprint_command (char* buffer, int len, unsigned char *command) {
 594     int i,s,start=len;
 595     len += sprint_opcode(buffer, len, command[0]);
 596     for ( i = 1, s = COMMAND_SIZE(command[0]); i < s; ++i)
 597         PRINTP("%02x " ANDP command[i]);
 598     PRINTP("\n");
 599     return len-start;
 600 }
 601
 602 static int sprint_Scsi_Cmnd (char* buffer, int len, Scsi_Cmnd *cmd) {
 603     int start = len;
 604     PRINTP("host number %d destination target %d, lun %d\n" ANDP
 605        cmd->host->host_no ANDP
 606        cmd->target ANDP
 607        cmd->lun);
 608     PRINTP("        command = ");
 609     len += sprint_command (buffer, len, cmd->cmnd);
 610     return len-start;
 611 }
 612
 613 int generic_NCR5380_proc_info(char* buffer, char** start, off_t offset, int length, int hostno, int inout)
 614 {
 615     int len = 0;
 616     NCR5380_local_declare();
 617     unsigned char status;
 618     int i;
 619     struct Scsi_Host *scsi_ptr;
 620     Scsi_Cmnd *ptr;
 621     struct NCR5380_hostdata *hostdata;
 622
 623     cli();
 624
 625     for (scsi_ptr = first_instance; scsi_ptr; scsi_ptr=scsi_ptr->next)
 626         if (scsi_ptr->host_no == hostno)
 627             break;
 628     NCR5380_setup(scsi_ptr);
 629     hostdata = (struct NCR5380_hostdata *)scsi_ptr->hostdata;
 630
 631     PRINTP("SCSI host number %d : %s\n" ANDP scsi_ptr->host_no ANDP scsi_ptr->hostt->name);
 632     PRINTP("Generic NCR5380 driver version %d\n" ANDP GENERIC_NCR5380_PUBLIC_RELEASE);
 633     PRINTP("NCR5380 core version %d\n" ANDP NCR5380_PUBLIC_RELEASE);
 634 #ifdef NCR53C400
 635     PRINTP("NCR53C400 extension version %d\n" ANDP NCR53C400_PUBLIC_RELEASE);
 636     PRINTP("NCR53C400 card%s detected\n" ANDP  (((struct NCR5380_hostdata *)scsi_ptr->hostdata)->flags & FLAG_NCR53C400)?"":" not");
 637 # if NCR53C400_PSEUDO_DMA
 638     PRINTP("NCR53C400 pseudo DMA used\n");
 639 # endif
 640 #else
 641     PRINTP("NO NCR53C400 driver extensions\n");
 642 #endif
 643     PRINTP("Using %s mapping at %s 0x%x, " ANDP STRVAL(NCR5380_map_config) ANDP STRVAL(NCR5380_map_name) ANDP scsi_ptr->NCR5380_instance_name);
 644     if (scsi_ptr->irq == IRQ_NONE)
 645         PRINTP("no interrupt\n");
 646     else
 647         PRINTP("on interrupt %d\n" ANDP scsi_ptr->irq);
 648
 649 #ifdef NCR5380_STATS
 650     if (hostdata->connected || hostdata->issue_queue || hostdata->disconnected_queue)
 651         PRINTP("There are commands pending, transfer rates may be crud\n");
 652     if (hostdata->pendingr)
 653         PRINTP("  %d pending reads" ANDP hostdata->pendingr);
 654     if (hostdata->pendingw)
 655         PRINTP("  %d pending writes" ANDP hostdata->pendingw);
 656     if (hostdata->pendingr || hostdata->pendingw)
 657         PRINTP("\n");
 658     for (dev = scsi_devices; dev; dev=dev->next) {
 659         if (dev->host == scsi_ptr) {
 660             unsigned long br = hostdata->bytes_read[dev->id];
 661             unsigned long bw = hostdata->bytes_write[dev->id];
 662             long tr = hostdata->time_read[dev->id] / HZ;
 663             long tw = hostdata->time_write[dev->id] / HZ;
 664
 665             PRINTP("  T:%d %s " ANDP dev->id ANDP (dev->type < MAX_SCSI_DEVICE_CODE) ? scsi_device_types[(int)dev->type] : "Unknown");
 666             for (i=0; i<8; i++)
 667                 if (dev->vendor[i] >= 0x20)
 668                     *(buffer+(len++)) = dev->vendor[i];
 669             *(buffer+(len++)) = ' ';
 670             for (i=0; i<16; i++)
 671                 if (dev->model[i] >= 0x20)
 672                     *(buffer+(len++)) = dev->model[i];
 673             *(buffer+(len++)) = ' ';
 674             for (i=0; i<4; i++)
 675                 if (dev->rev[i] >= 0x20)
 676                     *(buffer+(len++)) = dev->rev[i];
 677             *(buffer+(len++)) = ' ';
 678
 679             PRINTP("\n%10ld kb read    in %5ld secs" ANDP br/1024 ANDP tr);
 680             if (tr)
 681                 PRINTP(" @ %5ld bps" ANDP br / tr);
 682
 683             PRINTP("\n%10ld kb written in %5ld secs" ANDP bw/1024 ANDP tw);
 684             if (tw)
 685                 PRINTP(" @ %5ld bps" ANDP bw / tw);
 686             PRINTP("\n");
 687         }
 688     }
 689 #endif
 690
 691     status = NCR5380_read(STATUS_REG);
 692     if (!(status & SR_REQ))
 693         PRINTP("REQ not asserted, phase unknown.\n");
 694     else {
 695         for (i = 0; (phases[i].value != PHASE_UNKNOWN) &&
 696                     (phases[i].value != (status & PHASE_MASK)); ++i)
 697             ;
 698         PRINTP("Phase %s\n" ANDP phases[i].name);
 699     }
 700
 701     if (!hostdata->connected) {
 702         PRINTP("No currently connected command\n");
 703     } else {
 704         len += sprint_Scsi_Cmnd (buffer, len, (Scsi_Cmnd *) hostdata->connected);
 705     }
 706
 707     PRINTP("issue_queue\n");
 708
 709     for (ptr = (Scsi_Cmnd *) hostdata->issue_queue; ptr;
 710                 ptr = (Scsi_Cmnd *) ptr->host_scribble)
 711         len += sprint_Scsi_Cmnd (buffer, len, ptr);
 712
 713     PRINTP("disconnected_queue\n");
 714
 715     for (ptr = (Scsi_Cmnd *) hostdata->disconnected_queue; ptr;
 716                 ptr = (Scsi_Cmnd *) ptr->host_scribble)
 717         len += sprint_Scsi_Cmnd (buffer, len, ptr);
 718
 719     *start = buffer + offset;
 720     len -= offset;
 721     if (len > length)
 722             len = length;
 723     sti();
 724     return len;
 725 }
 726
 727 #undef PRINTP
 728 #undef ANDP
 729
 730 #ifdef MODULE
 731 /* Eventually this will go into an include file, but this will be later */
 732 Scsi_Host_Template driver_template = GENERIC_NCR5380;
 733
 734 #include <linux/module.h>
 735 #include "scsi_module.c"
 736 #endif