| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * This file is subject to the terms and conditions of the GNU General Public |
| 3 | * License. See the file "COPYING" in the main directory of this archive |
| 4 | * for more details. |
| 5 | * |
| 6 | * Copyright (C) 1994-1996 Linus Torvalds & authors |
| 7 | * |
| 8 | * Copied from i386; many of the especially older MIPS or ISA-based platforms |
| 9 | * are basically identical. Using this file probably implies i8259 PIC |
| 10 | * support in a system but the very least interrupt numbers 0 - 15 need to |
| 11 | * be put aside for legacy devices. |
| 12 | */ |
| 13 | #ifndef __ASM_MACH_GENERIC_IDE_H |
| 14 | #define __ASM_MACH_GENERIC_IDE_H |
| 15 | |
| 16 | #ifdef __KERNEL__ |
| 17 | |
| 18 | #include <linux/config.h> |
| 19 | #include <linux/pci.h> |
| 20 | #include <linux/stddef.h> |
| 21 | |
| 22 | #ifndef MAX_HWIFS |
| 23 | # ifdef CONFIG_BLK_DEV_IDEPCI |
| 24 | #define MAX_HWIFS 10 |
| 25 | # else |
| 26 | #define MAX_HWIFS 6 |
| 27 | # endif |
| 28 | #endif |
| 29 | |
| 30 | #define IDE_ARCH_OBSOLETE_DEFAULTS |
| 31 | |
| 32 | static __inline__ int ide_probe_legacy(void) |
| 33 | { |
| 34 | #ifdef CONFIG_PCI |
| 35 | struct pci_dev *dev; |
| 36 | if ((dev = pci_get_class(PCI_CLASS_BRIDGE_EISA << 8, NULL)) != NULL || |
| 37 | (dev = pci_get_class(PCI_CLASS_BRIDGE_ISA << 8, NULL)) != NULL) { |
| 38 | pci_dev_put(dev); |
| 39 | |
| 40 | return 1; |
| 41 | } |
| 42 | return 0; |
| 43 | #elif defined(CONFIG_EISA) || defined(CONFIG_ISA) |
| 44 | return 1; |
| 45 | #else |
| 46 | return 0; |
| 47 | #endif |
| 48 | } |
| 49 | |
| 50 | static __inline__ int ide_default_irq(unsigned long base) |
| 51 | { |
| 52 | if (ide_probe_legacy()) |
| 53 | switch (base) { |
| 54 | case 0x1f0: |
| 55 | return 14; |
| 56 | case 0x170: |
| 57 | return 15; |
| 58 | case 0x1e8: |
| 59 | return 11; |
| 60 | case 0x168: |
| 61 | return 10; |
| 62 | case 0x1e0: |
| 63 | return 8; |
| 64 | case 0x160: |
| 65 | return 12; |
| 66 | default: |
| 67 | return 0; |
| 68 | } |
| 69 | else |
| 70 | return 0; |
| 71 | } |
| 72 | |
| 73 | static __inline__ unsigned long ide_default_io_base(int index) |
| 74 | { |
| 75 | if (ide_probe_legacy()) |
| 76 | switch (index) { |
| 77 | case 0: |
| 78 | return 0x1f0; |
| 79 | case 1: |
| 80 | return 0x170; |
| 81 | case 2: |
| 82 | return 0x1e8; |
| 83 | case 3: |
| 84 | return 0x168; |
| 85 | case 4: |
| 86 | return 0x1e0; |
| 87 | case 5: |
| 88 | return 0x160; |
| 89 | default: |
| 90 | return 0; |
| 91 | } |
| 92 | else |
| 93 | return 0; |
| 94 | } |
| 95 | |
| 96 | #define IDE_ARCH_OBSOLETE_INIT |
| 97 | #define ide_default_io_ctl(base) ((base) + 0x206) /* obsolete */ |
| 98 | |
| 99 | #ifdef CONFIG_BLK_DEV_IDEPCI |
| 100 | #define ide_init_default_irq(base) (0) |
| 101 | #else |
| 102 | #define ide_init_default_irq(base) ide_default_irq(base) |
| 103 | #endif |
| 104 | |
| 105 | /* MIPS port and memory-mapped I/O string operations. */ |
| 106 | |
| 107 | #define __ide_insw insw |
| 108 | #define __ide_insl insl |
| 109 | #define __ide_outsw outsw |
| 110 | #define __ide_outsl outsl |
| 111 | |
| 112 | #define __ide_mm_insw readsw |
| 113 | #define __ide_mm_insl readsl |
| 114 | #define __ide_mm_outsw writesw |
| 115 | #define __ide_mm_outsl writesl |
| 116 | |
| 117 | #endif /* __KERNEL__ */ |
| 118 | |
| 119 | #endif /* __ASM_MACH_GENERIC_IDE_H */ |