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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 | /* * This file is subject to the terms and conditions of the GNU General Public * License. See the file "COPYING" in the main directory of this archive * for more details. * * This file contains the MIPS architecture specific IDE code. * * Copyright (C) 1994-1996 Linus Torvalds & authors */ #ifndef __ASM_IDE_H #define __ASM_IDE_H #ifdef __KERNEL__ #include <linux/config.h> #ifndef MAX_HWIFS # ifdef CONFIG_BLK_DEV_IDEPCI #define MAX_HWIFS 10 # else #define MAX_HWIFS 6 # endif #endif #define ide__sti() __sti() struct ide_ops { int (*ide_default_irq)(ide_ioreg_t base); ide_ioreg_t (*ide_default_io_base)(int index); void (*ide_init_hwif_ports)(hw_regs_t *hw, ide_ioreg_t data_port, ide_ioreg_t ctrl_port, int *irq); int (*ide_request_irq)(unsigned int irq, void (*handler)(int, void *, struct pt_regs *), unsigned long flags, const char *device, void *dev_id); void (*ide_free_irq)(unsigned int irq, void *dev_id); 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); }; extern struct ide_ops *ide_ops; static __inline__ int ide_default_irq(ide_ioreg_t base) { return ide_ops->ide_default_irq(base); } static __inline__ ide_ioreg_t ide_default_io_base(int index) { return ide_ops->ide_default_io_base(index); } static inline void ide_init_hwif_ports(hw_regs_t *hw, ide_ioreg_t data_port, ide_ioreg_t ctrl_port, int *irq) { ide_ioreg_t reg = data_port; int i; for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++) { hw->io_ports[i] = reg; reg += 1; } if (ctrl_port) { hw->io_ports[IDE_CONTROL_OFFSET] = ctrl_port; } else { hw->io_ports[IDE_CONTROL_OFFSET] = hw->io_ports[IDE_DATA_OFFSET] + 0x206; } if (irq != NULL) *irq = 0; hw->io_ports[IDE_IRQ_OFFSET] = 0; } static __inline__ void ide_init_default_hwifs(void) { #ifndef CONFIG_BLK_DEV_IDEPCI hw_regs_t hw; int index; for(index = 0; index < MAX_HWIFS; index++) { ide_init_hwif_ports(&hw, ide_default_io_base(index), 0, NULL); hw.irq = ide_default_irq(ide_default_io_base(index)); ide_register_hw(&hw, NULL); } #endif /* CONFIG_BLK_DEV_IDEPCI */ } typedef union { unsigned all : 8; /* all of the bits together */ struct { unsigned head : 4; /* always zeros here */ unsigned unit : 1; /* drive select number, 0 or 1 */ unsigned bit5 : 1; /* always 1 */ unsigned lba : 1; /* using LBA instead of CHS */ unsigned bit7 : 1; /* always 1 */ } b; } select_t; static __inline__ int ide_request_irq(unsigned int irq, void (*handler)(int,void *, struct pt_regs *), unsigned long flags, const char *device, void *dev_id) { return ide_ops->ide_request_irq(irq, handler, flags, device, dev_id); } static __inline__ void ide_free_irq(unsigned int irq, void *dev_id) { ide_ops->ide_free_irq(irq, dev_id); } static __inline__ int ide_check_region (ide_ioreg_t from, unsigned int extent) { return ide_ops->ide_check_region(from, extent); } static __inline__ void ide_request_region(ide_ioreg_t from, unsigned int extent, const char *name) { ide_ops->ide_request_region(from, extent, name); } static __inline__ void ide_release_region(ide_ioreg_t from, unsigned int extent) { ide_ops->ide_release_region(from, extent); } #if defined(CONFIG_SWAP_IO_SPACE) && defined(__MIPSEB__) #ifdef insl #undef insl #endif #ifdef outsl #undef outsl #endif #ifdef insw #undef insw #endif #ifdef outsw #undef outsw #endif #define insw(p,a,c) \ do { \ unsigned short *ptr = (unsigned short *)(a); \ unsigned int i = (c); \ while (i--) \ *ptr++ = inw(p); \ } while (0) #define insl(p,a,c) \ do { \ unsigned long *ptr = (unsigned long *)(a); \ unsigned int i = (c); \ while (i--) \ *ptr++ = inl(p); \ } while (0) #define outsw(p,a,c) \ do { \ unsigned short *ptr = (unsigned short *)(a); \ unsigned int i = (c); \ while (i--) \ outw(*ptr++, (p)); \ } while (0) #define outsl(p,a,c) { \ unsigned long *ptr = (unsigned long *)(a); \ unsigned int i = (c); \ while (i--) \ outl(*ptr++, (p)); \ } while (0) #endif /* defined(CONFIG_SWAP_IO_SPACE) && defined(__MIPSEB__) */ /* * The following are not needed for the non-m68k ports */ #define ide_ack_intr(hwif) (1) #define ide_fix_driveid(id) do {} while (0) #define ide_release_lock(lock) do {} while (0) #define ide_get_lock(lock, hdlr, data) do {} while (0) #endif /* __KERNEL__ */ #endif /* __ASM_IDE_H */ |