156 lines
5.8 KiB
C
156 lines
5.8 KiB
C
/*
|
|
* Copyright (c) 1992, 1993
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* This software was developed by the Computer Systems Engineering group
|
|
* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
|
|
* contributed to Berkeley.
|
|
*
|
|
* All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Lawrence Berkeley Laboratory.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* @(#)autoconf.h 8.2 (Berkeley) 9/30/93
|
|
*
|
|
* from: Header: autoconf.h,v 1.11 93/09/28 05:26:41 leres Exp (LBL)
|
|
* $Id: autoconf.h,v 1.4 1994/09/17 23:46:32 deraadt Exp $
|
|
*/
|
|
|
|
/*
|
|
* Autoconfiguration information.
|
|
*/
|
|
|
|
/*
|
|
* Most devices are configured according to information kept in
|
|
* the FORTH PROMs. In particular, we extract the `name', `reg',
|
|
* and `address' properties of each device attached to the mainbus;
|
|
* other drives may also use this information. The mainbus itself
|
|
* (which `is' the CPU, in some sense) gets just the node, with a
|
|
* fake name ("mainbus").
|
|
*/
|
|
#define RA_MAXINTR 8 /* max interrupts per device */
|
|
struct romaux {
|
|
const char *ra_name; /* name from FORTH PROM */
|
|
int ra_node; /* FORTH PROM node ID */
|
|
int ra_iospace; /* register space (obio, etc) */
|
|
void *ra_paddr; /* register physical address */
|
|
int ra_len; /* register length */
|
|
void *ra_vaddr; /* ROM mapped virtual address, or 0 */
|
|
struct rom_intr { /* interrupt information: */
|
|
int int_pri; /* priority (IPL) */
|
|
int int_vec; /* vector (always 0?) */
|
|
} ra_intr[RA_MAXINTR];
|
|
int ra_nintr; /* number of interrupt info elements */
|
|
struct bootpath *ra_bp; /* used for locating boot device */
|
|
};
|
|
|
|
|
|
struct confargs {
|
|
int ca_bustype;
|
|
struct romaux ca_ra;
|
|
int ca_slot;
|
|
int ca_offset;
|
|
};
|
|
#define BUS_MAIN 0
|
|
#define BUS_SBUS 1
|
|
#define BUS_OBIO 2
|
|
#define BUS_VME 3
|
|
|
|
/*
|
|
* The various getprop* functions obtain `properties' from the ROMs.
|
|
* getprop() obtains a property as a byte-sequence, and returns its
|
|
* length; the others convert or make some other guarantee.
|
|
*/
|
|
int getprop __P((int node, char *name, void *buf, int bufsiz));
|
|
char *getpropstring __P((int node, char *name));
|
|
int getpropint __P((int node, char *name, int deflt));
|
|
|
|
/* Frequently used options node */
|
|
extern int optionsnode;
|
|
|
|
/*
|
|
* The romprop function gets physical and virtual addresses from the PROM
|
|
* and fills in a romaux. It returns 1 on success, 0 if the physical
|
|
* address is not available as a "reg" property.
|
|
*/
|
|
int romprop __P((struct romaux *ra, const char *name, int node));
|
|
|
|
/*
|
|
* The matchbyname function is useful in drivers that are matched
|
|
* by romaux name, i.e., all `mainbus attached' devices. It expects
|
|
* its aux pointer to point to a pointer to the name (the address of
|
|
* a romaux structure suffices, for instance).
|
|
*/
|
|
int matchbyname __P((struct device *, struct cfdata *cf, void *aux));
|
|
|
|
/*
|
|
* `clockfreq' produces a printable representation of a clock frequency
|
|
* (this is just a frill).
|
|
*/
|
|
char *clockfreq __P((int freq));
|
|
|
|
/*
|
|
* mapiodev maps an I/O device to a virtual address, returning the address.
|
|
* mapdev does the real work: you can supply a special virtual address and
|
|
* it will use that instead of creating one, but you must only do this if
|
|
* you get it from ../sparc/vaddrs.h.
|
|
*/
|
|
void *mapdev __P((void *pa, int va, int size));
|
|
#define mapiodev(pa, size) mapdev(pa, 0, size)
|
|
|
|
/*
|
|
* Memory description arrays. Shared between pmap.c and autoconf.c; no
|
|
* one else should use this (except maybe mem.c, e.g., if we fix the VM to
|
|
* handle discontiguous physical memory).
|
|
*/
|
|
struct memarr {
|
|
u_int addr;
|
|
u_int len;
|
|
};
|
|
int makememarr(struct memarr *, int max, int which);
|
|
#define MEMARR_AVAILPHYS 0
|
|
#define MEMARR_TOTALPHYS 1
|
|
|
|
/* Pass a string to the FORTH interpreter. May fail silently. */
|
|
void rominterpret __P((char *));
|
|
|
|
/* Openprom V2 style boot path */
|
|
struct bootpath {
|
|
char name[8]; /* name of this node */
|
|
int val[2]; /* up to two optional values */
|
|
};
|
|
|
|
struct device *bootdv; /* found during autoconfiguration */
|
|
|
|
/* Parse a disk string into a dev_t, return device struct pointer */
|
|
struct device *parsedisk __P((char *, int, int, dev_t *));
|