LXR linux/drivers/ide/ide-pio-blacklist.c

   1// SPDX-License-Identifier: GPL-2.0
   2/*
   3 * PIO blacklist.  Some drives incorrectly report their maximal PIO mode,
   4 * at least in respect to CMD640.  Here we keep info on some known drives.
   5 *
   6 * Changes to the ide_pio_blacklist[] should be made with EXTREME CAUTION
   7 * to avoid breaking the fragile cmd640.c support.
   8 */
   9
  10#include <linux/string.h>
  11#include <linux/ide.h>
  12
  13static struct ide_pio_info {
  14        const char      *name;
  15        int             pio;
  16} ide_pio_blacklist [] = {
  17        { "Conner Peripherals 540MB - CFS540A", 3 },
  18
  19        { "WDC AC2700",  3 },
  20        { "WDC AC2540",  3 },
  21        { "WDC AC2420",  3 },
  22        { "WDC AC2340",  3 },
  23        { "WDC AC2250",  0 },
  24        { "WDC AC2200",  0 },
  25        { "WDC AC21200", 4 },
  26        { "WDC AC2120",  0 },
  27        { "WDC AC2850",  3 },
  28        { "WDC AC1270",  3 },
  29        { "WDC AC1170",  1 },
  30        { "WDC AC1210",  1 },
  31        { "WDC AC280",   0 },
  32        { "WDC AC31000", 3 },
  33        { "WDC AC31200", 3 },
  34
  35        { "Maxtor 7131 AT", 1 },
  36        { "Maxtor 7171 AT", 1 },
  37        { "Maxtor 7213 AT", 1 },
  38        { "Maxtor 7245 AT", 1 },
  39        { "Maxtor 7345 AT", 1 },
  40        { "Maxtor 7546 AT", 3 },
  41        { "Maxtor 7540 AV", 3 },
  42
  43        { "SAMSUNG SHD-3121A", 1 },
  44        { "SAMSUNG SHD-3122A", 1 },
  45        { "SAMSUNG SHD-3172A", 1 },
  46
  47        { "ST5660A",  3 },
  48        { "ST3660A",  3 },
  49        { "ST3630A",  3 },
  50        { "ST3655A",  3 },
  51        { "ST3391A",  3 },
  52        { "ST3390A",  1 },
  53        { "ST3600A",  1 },
  54        { "ST3290A",  0 },
  55        { "ST3144A",  0 },
  56        { "ST3491A",  1 }, /* reports 3, should be 1 or 2 (depending on drive)
  57                              according to Seagate's FIND-ATA program */
  58
  59        { "QUANTUM ELS127A", 0 },
  60        { "QUANTUM ELS170A", 0 },
  61        { "QUANTUM LPS240A", 0 },
  62        { "QUANTUM LPS210A", 3 },
  63        { "QUANTUM LPS270A", 3 },
  64        { "QUANTUM LPS365A", 3 },
  65        { "QUANTUM LPS540A", 3 },
  66        { "QUANTUM LIGHTNING 540A", 3 },
  67        { "QUANTUM LIGHTNING 730A", 3 },
  68
  69        { "QUANTUM FIREBALL_540", 3 }, /* Older Quantum Fireballs don't work */
  70        { "QUANTUM FIREBALL_640", 3 },
  71        { "QUANTUM FIREBALL_1080", 3 },
  72        { "QUANTUM FIREBALL_1280", 3 },
  73        { NULL, 0 }
  74};
  75
  76/**
  77 *      ide_scan_pio_blacklist  -       check for a blacklisted drive
  78 *      @model: Drive model string
  79 *
  80 *      This routine searches the ide_pio_blacklist for an entry
  81 *      matching the start/whole of the supplied model name.
  82 *
  83 *      Returns -1 if no match found.
  84 *      Otherwise returns the recommended PIO mode from ide_pio_blacklist[].
  85 */
  86
  87int ide_scan_pio_blacklist(char *model)
  88{
  89        struct ide_pio_info *p;
  90
  91        for (p = ide_pio_blacklist; p->name != NULL; p++) {
  92                if (strncmp(p->name, model, strlen(p->name)) == 0)
  93                        return p->pio;
  94        }
  95        return -1;
  96}
  97