196 lines
6.9 KiB
C
196 lines
6.9 KiB
C
/* $NetBSD: autoconf.h,v 1.13 1996/01/15 00:06:51 thorpej Exp $ */
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/*
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This software was developed by the Computer Systems Engineering group
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* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
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* contributed to Berkeley.
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*
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* All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Lawrence Berkeley Laboratory.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)autoconf.h 8.2 (Berkeley) 9/30/93
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*/
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/*
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* Autoconfiguration information.
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*/
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/*
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* Most devices are configured according to information kept in
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* the FORTH PROMs. In particular, we extract the `name', `reg',
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* and `address' properties of each device attached to the mainbus;
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* other drives may also use this information. The mainbus itself
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* (which `is' the CPU, in some sense) gets just the node, with a
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* fake name ("mainbus").
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*/
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#define RA_MAXVADDR 4 /* max (virtual) addresses per device */
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#define RA_MAXREG 2 /* max # of register banks per device */
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#define RA_MAXINTR 8 /* max interrupts per device */
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struct romaux {
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const char *ra_name; /* name from FORTH PROM */
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int ra_node; /* FORTH PROM node ID */
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void *ra_vaddrs[RA_MAXVADDR];/* ROM mapped virtual addresses */
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int ra_nvaddrs; /* # of ra_vaddrs[]s, may be 0 */
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#define ra_vaddr ra_vaddrs[0] /* compatibility */
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struct rom_reg {
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int rr_iospace; /* register space (obio, etc) */
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void *rr_paddr; /* register physical address */
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int rr_len; /* register length */
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} ra_reg[RA_MAXREG];
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int ra_nreg; /* # of ra_reg[]s */
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#define ra_iospace ra_reg[0].rr_iospace
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#define ra_paddr ra_reg[0].rr_paddr
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#define ra_len ra_reg[0].rr_len
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struct rom_intr { /* interrupt information: */
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int int_pri; /* priority (IPL) */
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int int_vec; /* vector (always 0?) */
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} ra_intr[RA_MAXINTR];
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int ra_nintr; /* number of interrupt info elements */
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struct bootpath *ra_bp; /* used for locating boot device */
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};
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struct confargs {
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int ca_bustype;
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struct romaux ca_ra;
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int ca_slot;
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int ca_offset;
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};
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#define BUS_MAIN 0
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#define BUS_OBIO 1
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#define BUS_VME16 2
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#define BUS_VME32 3
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#define BUS_SBUS 4
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extern int bt2pmt[];
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/*
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* mapiodev maps an I/O device to a virtual address, returning the address.
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* mapdev does the real work: you can supply a special virtual address and
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* it will use that instead of creating one, but you must only do this if
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* you get it from ../sparc/vaddrs.h.
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*/
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void *mapdev __P((struct rom_reg *pa, int va,
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int offset, int size, int bustype));
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#define mapiodev(pa, offset, size, bustype) \
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mapdev(pa, 0, offset, size, bustype)
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#ifdef notyet
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/*
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* REG2PHYS is provided for drivers with a `d_mmap' function.
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*/
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#define REG2PHYS(rr, offset, bt) \
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(((u_int)(rr)->rr_paddr + (offset)) | \
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((cputyp == CPU_SUN4M) \
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? ((rr)->rr_iospace << PMAP_SHFT4M) \
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: bt2pmt[bt]) \
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)
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#else
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#define REG2PHYS(rr, offset, bt) \
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(((u_int)(rr)->rr_paddr + (offset)) | (bt2pmt[bt]) \
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)
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#endif
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#if defined(SUN4)
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void * bus_map __P((struct rom_reg *, int, int));
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#endif
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/*
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* The various getprop* functions obtain `properties' from the ROMs.
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* getprop() obtains a property as a byte-sequence, and returns its
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* length; the others convert or make some other guarantee.
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*/
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int getprop __P((int node, char *name, void *buf, int bufsiz));
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char *getpropstring __P((int node, char *name));
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int getpropint __P((int node, char *name, int deflt));
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/* Frequently used options node */
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extern int optionsnode;
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/*
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* The romprop function gets physical and virtual addresses from the PROM
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* and fills in a romaux. It returns 1 on success, 0 if the physical
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* address is not available as a "reg" property.
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*/
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int romprop __P((struct romaux *ra, const char *name, int node));
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/*
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* The matchbyname function is useful in drivers that are matched
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* by romaux name, i.e., all `mainbus attached' devices. It expects
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* its aux pointer to point to a pointer to the name (the address of
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* a romaux structure suffices, for instance).
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*/
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int matchbyname __P((struct device *, void *cf, void *aux));
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/*
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* `clockfreq' produces a printable representation of a clock frequency
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* (this is just a frill).
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*/
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char *clockfreq __P((int freq));
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/*
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* Memory description arrays. Shared between pmap.c and autoconf.c; no
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* one else should use this (except maybe mem.c, e.g., if we fix the VM to
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* handle discontiguous physical memory).
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*/
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struct memarr {
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u_int addr;
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u_int len;
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};
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int makememarr(struct memarr *, int max, int which);
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#define MEMARR_AVAILPHYS 0
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#define MEMARR_TOTALPHYS 1
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/* Pass a string to the FORTH interpreter. May fail silently. */
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void rominterpret __P((char *));
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/* Openprom V2 style boot path */
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struct bootpath {
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char name[8]; /* name of this node */
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int val[2]; /* up to two optional values */
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};
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struct device *bootdv; /* found during autoconfiguration */
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struct bootpath *bootpath_store __P((int, struct bootpath *));
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int sd_crazymap __P((int));
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/* Parse a disk string into a dev_t, return device struct pointer */
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struct device *parsedisk __P((char *, int, int, dev_t *));
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/* Establish a mountroot_hook, for benefit of floppy drive, mostly. */
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void mountroot_hook_establish __P((void (*func) __P((struct device *)),
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struct device *));
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