156 lines
5.1 KiB
C
156 lines
5.1 KiB
C
/* $NetBSD: autoconf.h,v 1.14 1998/02/13 02:09:12 cgd Exp $ */
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/*
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* Copyright (c) 1994, 1995, 1996 Carnegie-Mellon University.
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* All rights reserved.
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*
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* Author: Chris G. Demetriou
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*
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* Permission to use, copy, modify and distribute this software and
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* its documentation is hereby granted, provided that both the copyright
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation.
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*
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* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
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* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* Carnegie Mellon requests users of this software to return to
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*
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* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
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* School of Computer Science
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* Carnegie Mellon University
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* Pittsburgh PA 15213-3890
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*
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* any improvements or extensions that they make and grant Carnegie the
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* rights to redistribute these changes.
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*/
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/*
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* Machine-dependent structures of autoconfiguration
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*/
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struct confargs;
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typedef int (*intr_handler_t) __P((void *));
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struct abus {
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struct device *ab_dv; /* back-pointer to device */
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int ab_type; /* bus type (see below) */
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void (*ab_intr_establish) /* bus's set-handler function */
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__P((struct confargs *, intr_handler_t, void *));
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void (*ab_intr_disestablish) /* bus's unset-handler function */
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__P((struct confargs *));
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caddr_t (*ab_cvtaddr) /* convert slot/offset to address */
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__P((struct confargs *));
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int (*ab_matchname) /* see if name matches driver */
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__P((struct confargs *, char *));
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};
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#define BUS_MAIN 1 /* mainbus */
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#define BUS_TC 2 /* TurboChannel */
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#define BUS_ASIC 3 /* IOCTL ASIC; under TurboChannel */
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#define BUS_TCDS 4 /* TCDS ASIC; under TurboChannel */
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#define BUS_INTR_ESTABLISH(ca, handler, val) \
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(*(ca)->ca_bus->ab_intr_establish)((ca), (handler), (val))
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#define BUS_INTR_DISESTABLISH(ca) \
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(*(ca)->ca_bus->ab_intr_establish)(ca)
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#define BUS_CVTADDR(ca) \
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(*(ca)->ca_bus->ab_cvtaddr)(ca)
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#define BUS_MATCHNAME(ca, name) \
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(*(ca)->ca_bus->ab_matchname)((ca), (name))
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struct confargs {
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char *ca_name; /* Device name. */
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int ca_slot; /* Device slot. */
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int ca_offset; /* Offset into slot. */
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struct abus *ca_bus; /* bus device resides on. */
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};
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struct bootdev_data {
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char *protocol;
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int bus;
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int slot;
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int channel;
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char *remote_address;
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int unit;
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int boot_dev_type;
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char *ctrl_dev_type;
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};
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/*
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* The boot program passes a pointer (in the boot environment virtual
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* address address space; "BEVA") to a bootinfo to the kernel using
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* the following convention:
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*
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* a0 contains first free page frame number
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* a1 contains page number of current level 1 page table
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* if a2 contains BOOTINFO_MAGIC and a4 is nonzero:
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* a3 contains pointer (BEVA) to bootinfo
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* a4 contains bootinfo version number
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* if a2 contains BOOTINFO_MAGIC and a4 contains 0 (backward compat):
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* a3 contains pointer (BEVA) to bootinfo version
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* (u_long), then the bootinfo
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*/
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#define BOOTINFO_MAGIC 0xdeadbeeffeedface
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struct bootinfo_v1 {
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u_long ssym; /* 0: start of kernel sym table */
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u_long esym; /* 8: end of kernel sym table */
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char boot_flags[64]; /* 16: boot flags */
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char booted_kernel[64]; /* 80: name of booted kernel */
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void *hwrpb; /* 144: hwrpb pointer (BEVA) */
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u_long hwrpbsize; /* 152: size of hwrpb data */
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int (*cngetc) __P((void)); /* 160: console getc pointer */
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void (*cnputc) __P((int)); /* 168: console putc pointer */
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void (*cnpollc) __P((int)); /* 176: console pollc pointer */
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u_long pad[9]; /* 184: rsvd for future use */
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/* 256: total size */
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};
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/*
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* Kernel-internal structure used to hold important bits of boot
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* information. NOT to be used by boot blocks.
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*
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* Note that not all of the fields from the bootinfo struct(s)
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* passed by the boot blocks aren't here (because they're not currently
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* used by the kernel!). Fields here which aren't supplied by the
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* bootinfo structure passed by the boot blocks are supposed to be
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* filled in at startup with sane contents.
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*/
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struct bootinfo_kernel {
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u_long ssym; /* start of syms */
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u_long esym; /* end of syms */
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u_long hwrpb_phys; /* hwrpb physical address */
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u_long hwrpb_size; /* size of hwrpb data */
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char boot_flags[64]; /* boot flags */
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char booted_kernel[64]; /* name of booted kernel */
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char booted_dev[64]; /* name of booted device */
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};
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/*
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* Lookup table entry for Alpha system variations.
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*/
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struct alpha_variation_table {
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u_int64_t avt_variation; /* variation, from HWRPB */
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const char *avt_model; /* model string */
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};
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#ifdef _KERNEL
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#ifdef EVCNT_COUNTERS
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extern struct evcnt clock_intr_evcnt;
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#endif
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extern struct device *booted_device;
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extern int booted_partition;
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extern struct bootdev_data *bootdev_data;
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extern struct bootinfo_kernel bootinfo;
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const char *alpha_variation_name __P((u_int64_t,
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const struct alpha_variation_table *));
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const char *alpha_unknown_sysname __P((void));
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#endif /* _KERNEL */
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