projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | /* |
| 2 | * linux/include/asm-i386/ide.h | |
| 3 | * | |
| 4 | * Copyright (C) 1994-1996 Linus Torvalds & authors | |
| 5 | */ | |
| 6 | ||
| 7 | /* | |
| 8 | * This file contains the i386 architecture specific IDE code. | |
| 9 | */ | |
| 10 | ||
| 11 | #ifndef __ASMi386_IDE_H | |
| 12 | #define __ASMi386_IDE_H | |
| 13 | ||
| 14 | #ifdef __KERNEL__ | |
| 15 | ||
| 1da177e4 LT |
16 | |
| 17 | #ifndef MAX_HWIFS | |
| 18 | # ifdef CONFIG_BLK_DEV_IDEPCI | |
| 19 | #define MAX_HWIFS 10 | |
| 20 | # else | |
| 21 | #define MAX_HWIFS 6 | |
| 22 | # endif | |
| 23 | #endif | |
| 24 | ||
| 25 | #define IDE_ARCH_OBSOLETE_DEFAULTS | |
| 26 | ||
| 27 | static __inline__ int ide_default_irq(unsigned long base) | |
| 28 | { | |
| 29 | switch (base) { | |
| 30 | case 0x1f0: return 14; | |
| 31 | case 0x170: return 15; | |
| 32 | case 0x1e8: return 11; | |
| 33 | case 0x168: return 10; | |
| 34 | case 0x1e0: return 8; | |
| 35 | case 0x160: return 12; | |
| 36 | default: | |
| 37 | return 0; | |
| 38 | } | |
| 39 | } | |
| 40 | ||
| 41 | static __inline__ unsigned long ide_default_io_base(int index) | |
| 42 | { | |
| b1489009 | 43 | struct pci_dev *pdev; |
| 25000c2c AC |
44 | /* |
| 45 | * If PCI is present then it is not safe to poke around | |
| 46 | * the other legacy IDE ports. Only 0x1f0 and 0x170 are | |
| 47 | * defined compatibility mode ports for PCI. A user can | |
| 48 | * override this using ide= but we must default safe. | |
| 49 | */ | |
| b1489009 | 50 | if ((pdev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, NULL)) == NULL) { |
| c47abbbf AC |
51 | switch(index) { |
| 52 | case 2: return 0x1e8; | |
| 53 | case 3: return 0x168; | |
| 54 | case 4: return 0x1e0; | |
| 55 | case 5: return 0x160; | |
| 56 | } | |
| 57 | } | |
| b1489009 | 58 | pci_dev_put(pdev); |
| 1da177e4 LT |
59 | switch (index) { |
| 60 | case 0: return 0x1f0; | |
| 61 | case 1: return 0x170; | |
| 1da177e4 LT |
62 | default: |
| 63 | return 0; | |
| 64 | } | |
| 65 | } | |
| 66 | ||
| 67 | #define IDE_ARCH_OBSOLETE_INIT | |
| 68 | #define ide_default_io_ctl(base) ((base) + 0x206) /* obsolete */ | |
| 69 | ||
| 70 | #ifdef CONFIG_BLK_DEV_IDEPCI | |
| 71 | #define ide_init_default_irq(base) (0) | |
| 72 | #else | |
| 73 | #define ide_init_default_irq(base) ide_default_irq(base) | |
| 74 | #endif | |
| 75 | ||
| 76 | #include <asm-generic/ide_iops.h> | |
| 77 | ||
| 78 | #endif /* __KERNEL__ */ | |
| 79 | ||
| 80 | #endif /* __ASMi386_IDE_H */ |