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Commit | Line | Data |
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1da177e4 | 1 | /* |
1da177e4 LT |
2 | * Copyright (C) 1994-1996 Linus Torvalds & authors |
3 | */ | |
4 | ||
5 | /* | |
6 | * This file contains the i386 architecture specific IDE code. | |
7 | */ | |
8 | ||
9 | #ifndef __ASMi386_IDE_H | |
10 | #define __ASMi386_IDE_H | |
11 | ||
12 | #ifdef __KERNEL__ | |
13 | ||
1da177e4 LT |
14 | |
15 | #ifndef MAX_HWIFS | |
16 | # ifdef CONFIG_BLK_DEV_IDEPCI | |
17 | #define MAX_HWIFS 10 | |
18 | # else | |
19 | #define MAX_HWIFS 6 | |
20 | # endif | |
21 | #endif | |
22 | ||
1da177e4 LT |
23 | static __inline__ int ide_default_irq(unsigned long base) |
24 | { | |
25 | switch (base) { | |
26 | case 0x1f0: return 14; | |
27 | case 0x170: return 15; | |
28 | case 0x1e8: return 11; | |
29 | case 0x168: return 10; | |
30 | case 0x1e0: return 8; | |
31 | case 0x160: return 12; | |
32 | default: | |
33 | return 0; | |
34 | } | |
35 | } | |
36 | ||
37 | static __inline__ unsigned long ide_default_io_base(int index) | |
38 | { | |
25000c2c AC |
39 | /* |
40 | * If PCI is present then it is not safe to poke around | |
41 | * the other legacy IDE ports. Only 0x1f0 and 0x170 are | |
42 | * defined compatibility mode ports for PCI. A user can | |
43 | * override this using ide= but we must default safe. | |
44 | */ | |
ed4aaadb | 45 | if (no_pci_devices()) { |
c47abbbf AC |
46 | switch(index) { |
47 | case 2: return 0x1e8; | |
48 | case 3: return 0x168; | |
49 | case 4: return 0x1e0; | |
50 | case 5: return 0x160; | |
51 | } | |
52 | } | |
1da177e4 LT |
53 | switch (index) { |
54 | case 0: return 0x1f0; | |
55 | case 1: return 0x170; | |
1da177e4 LT |
56 | default: |
57 | return 0; | |
58 | } | |
59 | } | |
60 | ||
1da177e4 LT |
61 | #include <asm-generic/ide_iops.h> |
62 | ||
63 | #endif /* __KERNEL__ */ | |
64 | ||
65 | #endif /* __ASMi386_IDE_H */ |