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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 | /* * BK Id: SCCS/s.ide.h 1.10 05/17/01 18:14:24 cort */ /* * linux/include/asm-ppc/ide.h * * Copyright (C) 1994-1996 Linus Torvalds & authors */ /* * This file contains the ppc architecture specific IDE code. */ #ifndef __ASMPPC_IDE_H #define __ASMPPC_IDE_H #ifdef __KERNEL__ #include <linux/sched.h> #include <asm/processor.h> #ifndef MAX_HWIFS #define MAX_HWIFS 8 #endif #include <asm/hdreg.h> #include <linux/config.h> #include <linux/hdreg.h> #include <linux/ioport.h> #include <asm/io.h> extern int pmac_ide_ports_known; extern ide_ioreg_t pmac_ide_regbase[MAX_HWIFS]; extern int pmac_ide_irq[MAX_HWIFS]; extern void pmac_ide_probe(void); extern int chrp_ide_ports_known; extern ide_ioreg_t chrp_ide_regbase[MAX_HWIFS]; extern ide_ioreg_t chrp_idedma_regbase; /* one for both channels */ extern unsigned int chrp_ide_irq; extern void chrp_ide_probe(void); extern void ppc_generic_ide_fix_driveid(struct hd_driveid *id); struct ide_machdep_calls { void (*insw)(ide_ioreg_t port, void *buf, int ns); void (*outsw)(ide_ioreg_t port, void *buf, int ns); int (*default_irq)(ide_ioreg_t base); ide_ioreg_t (*default_io_base)(int index); int (*ide_check_region)(ide_ioreg_t from, unsigned int extent); void (*ide_request_region)(ide_ioreg_t from, unsigned int extent, const char *name); void (*ide_release_region)(ide_ioreg_t from, unsigned int extent); void (*fix_driveid)(struct hd_driveid *id); void (*ide_init_hwif)(hw_regs_t *hw, ide_ioreg_t data_port, ide_ioreg_t ctrl_port, int *irq); int io_base; }; extern struct ide_machdep_calls ppc_ide_md; void ide_insw(ide_ioreg_t port, void *buf, int ns); void ide_outsw(ide_ioreg_t port, void *buf, int ns); void ppc_generic_ide_fix_driveid(struct hd_driveid *id); #undef insw #define insw(port, buf, ns) do { \ ppc_ide_md.insw((port), (buf), (ns)); \ } while (0) #undef outsw #define outsw(port, buf, ns) do { \ ppc_ide_md.outsw((port), (buf), (ns)); \ } while (0) #undef SUPPORT_SLOW_DATA_PORTS #define SUPPORT_SLOW_DATA_PORTS 0 #undef SUPPORT_VLB_SYNC #define SUPPORT_VLB_SYNC 0 #define ide__sti() __sti() static __inline__ int ide_default_irq(ide_ioreg_t base) { if ( ppc_ide_md.default_irq ) return ppc_ide_md.default_irq(base); else return -1; } static __inline__ ide_ioreg_t ide_default_io_base(int index) { if (ppc_ide_md.default_io_base) return ppc_ide_md.default_io_base(index); return 0; } static __inline__ void ide_init_hwif_ports(hw_regs_t *hw, ide_ioreg_t data_port, ide_ioreg_t ctrl_port, int *irq) { if (ppc_ide_md.ide_init_hwif != NULL) ppc_ide_md.ide_init_hwif(hw, data_port, ctrl_port, irq); } static __inline__ void ide_init_default_hwifs(void) { #ifndef CONFIG_BLK_DEV_IDEPCI hw_regs_t hw; int index; ide_ioreg_t base; for (index = 0; index < MAX_HWIFS; index++) { base = ide_default_io_base(index); if (base == 0) continue; ide_init_hwif_ports(&hw, base, 0, NULL); hw.irq = ide_default_irq(base); ide_register_hw(&hw, NULL); } #endif /* CONFIG_BLK_DEV_IDEPCI */ } static __inline__ int ide_check_region (ide_ioreg_t from, unsigned int extent) { if (ppc_ide_md.ide_check_region) return ppc_ide_md.ide_check_region(from, extent); return 0; } static __inline__ void ide_request_region (ide_ioreg_t from, unsigned int extent, const char *name) { if ( ppc_ide_md.ide_request_region ) ppc_ide_md.ide_request_region(from, extent, name); } static __inline__ void ide_release_region (ide_ioreg_t from, unsigned int extent) { if ( ppc_ide_md.ide_release_region ) ppc_ide_md.ide_release_region(from, extent); } static __inline__ void ide_fix_driveid (struct hd_driveid *id) { if ( ppc_ide_md.fix_driveid ) ppc_ide_md.fix_driveid(id); } typedef union { unsigned all : 8; /* all of the bits together */ struct { unsigned bit7 : 1; /* always 1 */ unsigned lba : 1; /* using LBA instead of CHS */ unsigned bit5 : 1; /* always 1 */ unsigned unit : 1; /* drive select number, 0/1 */ unsigned head : 4; /* always zeros here */ } b; } select_t; #if !defined(ide_request_irq) #define ide_request_irq(irq,hand,flg,dev,id) request_irq((irq),(hand),(flg),(dev),(id)) #endif #if !defined(ide_free_irq) #define ide_free_irq(irq,dev_id) free_irq((irq), (dev_id)) #endif /* * The following are not needed for the non-m68k ports */ #ifdef CONFIG_APUS #define ide_ack_intr(hwif) (hwif->hw.ack_intr ? hwif->hw.ack_intr(hwif) : 1) #else #define ide_ack_intr(hwif) (1) #endif #define ide_release_lock(lock) do {} while (0) #define ide_get_lock(lock, hdlr, data) do {} while (0) #endif /* __KERNEL__ */ #endif /* __ASMPPC_IDE_H */ |