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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 | } |
95 |
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