Commit | Line | Data |
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9ad54093 BZ |
1 | /* |
2 | * PIO blacklist. Some drives incorrectly report their maximal PIO mode, | |
3 | * at least in respect to CMD640. Here we keep info on some known drives. | |
4 | * | |
5 | * Changes to the ide_pio_blacklist[] should be made with EXTREME CAUTION | |
6 | * to avoid breaking the fragile cmd640.c support. | |
7 | */ | |
8 | ||
9 | #include <linux/string.h> | |
10 | ||
11 | static struct ide_pio_info { | |
12 | const char *name; | |
13 | int pio; | |
14 | } ide_pio_blacklist [] = { | |
15 | { "Conner Peripherals 540MB - CFS540A", 3 }, | |
16 | ||
17 | { "WDC AC2700", 3 }, | |
18 | { "WDC AC2540", 3 }, | |
19 | { "WDC AC2420", 3 }, | |
20 | { "WDC AC2340", 3 }, | |
21 | { "WDC AC2250", 0 }, | |
22 | { "WDC AC2200", 0 }, | |
23 | { "WDC AC21200", 4 }, | |
24 | { "WDC AC2120", 0 }, | |
25 | { "WDC AC2850", 3 }, | |
26 | { "WDC AC1270", 3 }, | |
27 | { "WDC AC1170", 1 }, | |
28 | { "WDC AC1210", 1 }, | |
29 | { "WDC AC280", 0 }, | |
30 | { "WDC AC31000", 3 }, | |
31 | { "WDC AC31200", 3 }, | |
32 | ||
33 | { "Maxtor 7131 AT", 1 }, | |
34 | { "Maxtor 7171 AT", 1 }, | |
35 | { "Maxtor 7213 AT", 1 }, | |
36 | { "Maxtor 7245 AT", 1 }, | |
37 | { "Maxtor 7345 AT", 1 }, | |
38 | { "Maxtor 7546 AT", 3 }, | |
39 | { "Maxtor 7540 AV", 3 }, | |
40 | ||
41 | { "SAMSUNG SHD-3121A", 1 }, | |
42 | { "SAMSUNG SHD-3122A", 1 }, | |
43 | { "SAMSUNG SHD-3172A", 1 }, | |
44 | ||
45 | { "ST5660A", 3 }, | |
46 | { "ST3660A", 3 }, | |
47 | { "ST3630A", 3 }, | |
48 | { "ST3655A", 3 }, | |
49 | { "ST3391A", 3 }, | |
50 | { "ST3390A", 1 }, | |
51 | { "ST3600A", 1 }, | |
52 | { "ST3290A", 0 }, | |
53 | { "ST3144A", 0 }, | |
54 | { "ST3491A", 1 }, /* reports 3, should be 1 or 2 (depending on drive) | |
55 | according to Seagate's FIND-ATA program */ | |
56 | ||
57 | { "QUANTUM ELS127A", 0 }, | |
58 | { "QUANTUM ELS170A", 0 }, | |
59 | { "QUANTUM LPS240A", 0 }, | |
60 | { "QUANTUM LPS210A", 3 }, | |
61 | { "QUANTUM LPS270A", 3 }, | |
62 | { "QUANTUM LPS365A", 3 }, | |
63 | { "QUANTUM LPS540A", 3 }, | |
64 | { "QUANTUM LIGHTNING 540A", 3 }, | |
65 | { "QUANTUM LIGHTNING 730A", 3 }, | |
66 | ||
67 | { "QUANTUM FIREBALL_540", 3 }, /* Older Quantum Fireballs don't work */ | |
68 | { "QUANTUM FIREBALL_640", 3 }, | |
69 | { "QUANTUM FIREBALL_1080", 3 }, | |
70 | { "QUANTUM FIREBALL_1280", 3 }, | |
71 | { NULL, 0 } | |
72 | }; | |
73 | ||
74 | /** | |
75 | * ide_scan_pio_blacklist - check for a blacklisted drive | |
76 | * @model: Drive model string | |
77 | * | |
78 | * This routine searches the ide_pio_blacklist for an entry | |
79 | * matching the start/whole of the supplied model name. | |
80 | * | |
81 | * Returns -1 if no match found. | |
82 | * Otherwise returns the recommended PIO mode from ide_pio_blacklist[]. | |
83 | */ | |
84 | ||
85 | int ide_scan_pio_blacklist(char *model) | |
86 | { | |
87 | struct ide_pio_info *p; | |
88 | ||
89 | for (p = ide_pio_blacklist; p->name != NULL; p++) { | |
90 | if (strncmp(p->name, model, strlen(p->name)) == 0) | |
91 | return p->pio; | |
92 | } | |
93 | return -1; | |
94 | } |