| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame^] | 1 | /* |
| 2 | * linux/include/asm-m68k/ide.h |
| 3 | * |
| 4 | * Copyright (C) 1994-1996 Linus Torvalds & authors |
| 5 | */ |
| 6 | |
| 7 | /* Copyright(c) 1996 Kars de Jong */ |
| 8 | /* Based on the ide driver from 1.2.13pl8 */ |
| 9 | |
| 10 | /* |
| 11 | * Credits (alphabetical): |
| 12 | * |
| 13 | * - Bjoern Brauel |
| 14 | * - Kars de Jong |
| 15 | * - Torsten Ebeling |
| 16 | * - Dwight Engen |
| 17 | * - Thorsten Floeck |
| 18 | * - Roman Hodek |
| 19 | * - Guenther Kelleter |
| 20 | * - Chris Lawrence |
| 21 | * - Michael Rausch |
| 22 | * - Christian Sauer |
| 23 | * - Michael Schmitz |
| 24 | * - Jes Soerensen |
| 25 | * - Michael Thurm |
| 26 | * - Geert Uytterhoeven |
| 27 | */ |
| 28 | |
| 29 | #ifndef _M68K_IDE_H |
| 30 | #define _M68K_IDE_H |
| 31 | |
| 32 | #ifdef __KERNEL__ |
| 33 | |
| 34 | #include <linux/config.h> |
| 35 | |
| 36 | #include <asm/setup.h> |
| 37 | #include <asm/io.h> |
| 38 | #include <asm/irq.h> |
| 39 | |
| 40 | #ifdef CONFIG_ATARI |
| 41 | #include <linux/interrupt.h> |
| 42 | #include <asm/atari_stdma.h> |
| 43 | #endif |
| 44 | |
| 45 | #ifdef CONFIG_MAC |
| 46 | #include <asm/macints.h> |
| 47 | #endif |
| 48 | |
| 49 | #ifndef MAX_HWIFS |
| 50 | #define MAX_HWIFS 4 /* same as the other archs */ |
| 51 | #endif |
| 52 | |
| 53 | /* |
| 54 | * Get rid of defs from io.h - ide has its private and conflicting versions |
| 55 | * Since so far no single m68k platform uses ISA/PCI I/O space for IDE, we |
| 56 | * always use the `raw' MMIO versions |
| 57 | */ |
| 58 | #undef inb |
| 59 | #undef inw |
| 60 | #undef insw |
| 61 | #undef inl |
| 62 | #undef insl |
| 63 | #undef outb |
| 64 | #undef outw |
| 65 | #undef outsw |
| 66 | #undef outl |
| 67 | #undef outsl |
| 68 | #undef readb |
| 69 | #undef readw |
| 70 | #undef readl |
| 71 | #undef writeb |
| 72 | #undef writew |
| 73 | #undef writel |
| 74 | |
| 75 | #define inb in_8 |
| 76 | #define inw in_be16 |
| 77 | #define insw(port, addr, n) raw_insw((u16 *)port, addr, n) |
| 78 | #define inl in_be32 |
| 79 | #define insl(port, addr, n) raw_insl((u32 *)port, addr, n) |
| 80 | #define outb(val, port) out_8(port, val) |
| 81 | #define outw(val, port) out_be16(port, val) |
| 82 | #define outsw(port, addr, n) raw_outsw((u16 *)port, addr, n) |
| 83 | #define outl(val, port) out_be32(port, val) |
| 84 | #define outsl(port, addr, n) raw_outsl((u32 *)port, addr, n) |
| 85 | #define readb in_8 |
| 86 | #define readw in_be16 |
| 87 | #define __ide_mm_insw(port, addr, n) raw_insw((u16 *)port, addr, n) |
| 88 | #define readl in_be32 |
| 89 | #define __ide_mm_insl(port, addr, n) raw_insl((u32 *)port, addr, n) |
| 90 | #define writeb(val, port) out_8(port, val) |
| 91 | #define writew(val, port) out_be16(port, val) |
| 92 | #define __ide_mm_outsw(port, addr, n) raw_outsw((u16 *)port, addr, n) |
| 93 | #define writel(val, port) out_be32(port, val) |
| 94 | #define __ide_mm_outsl(port, addr, n) raw_outsl((u32 *)port, addr, n) |
| 95 | #if defined(CONFIG_ATARI) || defined(CONFIG_Q40) |
| 96 | #define insw_swapw(port, addr, n) raw_insw_swapw((u16 *)port, addr, n) |
| 97 | #define outsw_swapw(port, addr, n) raw_outsw_swapw((u16 *)port, addr, n) |
| 98 | #endif |
| 99 | |
| 100 | |
| 101 | /* Q40 and Atari have byteswapped IDE busses and since many interesting |
| 102 | * values in the identification string are text, chars and words they |
| 103 | * happened to be almost correct without swapping.. However *_capacity |
| 104 | * is needed for drives over 8 GB. RZ */ |
| 105 | #if defined(CONFIG_Q40) || defined(CONFIG_ATARI) |
| 106 | #define M68K_IDE_SWAPW (MACH_IS_Q40 || MACH_IS_ATARI) |
| 107 | #endif |
| 108 | |
| 109 | #ifdef CONFIG_BLK_DEV_FALCON_IDE |
| 110 | #define IDE_ARCH_LOCK |
| 111 | |
| 112 | extern int falconide_intr_lock; |
| 113 | |
| 114 | static __inline__ void ide_release_lock (void) |
| 115 | { |
| 116 | if (MACH_IS_ATARI) { |
| 117 | if (falconide_intr_lock == 0) { |
| 118 | printk("ide_release_lock: bug\n"); |
| 119 | return; |
| 120 | } |
| 121 | falconide_intr_lock = 0; |
| 122 | stdma_release(); |
| 123 | } |
| 124 | } |
| 125 | |
| 126 | static __inline__ void |
| 127 | ide_get_lock(irqreturn_t (*handler)(int, void *, struct pt_regs *), void *data) |
| 128 | { |
| 129 | if (MACH_IS_ATARI) { |
| 130 | if (falconide_intr_lock == 0) { |
| 131 | if (in_interrupt() > 0) |
| 132 | panic( "Falcon IDE hasn't ST-DMA lock in interrupt" ); |
| 133 | stdma_lock(handler, data); |
| 134 | falconide_intr_lock = 1; |
| 135 | } |
| 136 | } |
| 137 | } |
| 138 | #endif /* CONFIG_BLK_DEV_FALCON_IDE */ |
| 139 | |
| 140 | #define IDE_ARCH_ACK_INTR |
| 141 | #define ide_ack_intr(hwif) ((hwif)->hw.ack_intr ? (hwif)->hw.ack_intr(hwif) : 1) |
| 142 | |
| 143 | #endif /* __KERNEL__ */ |
| 144 | #endif /* _M68K_IDE_H */ |