1 /* $NetBSD: promdev.h,v 1.2 1997/09/14 19:22:55 pk Exp $ */ 2 3 /* 4 * Copyright (c) 1993 Paul Kranenburg 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by Paul Kranenburg. 18 * 4. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 #include <machine/bsd_openprom.h> 34 35 struct promdata { 36 int fd; /* Openboot descriptor */ 37 struct saioreq *si; /* Oldmon IO request */ 38 int devtype; /* Kind of device we're booting from */ 39 #define DT_BLOCK 1 40 #define DT_NET 2 41 #define DT_BYTE 3 42 /* Hooks for netif.c */ 43 int (*xmit) __P((struct promdata *, void *, size_t)); 44 int (*recv) __P((struct promdata *, void *, size_t)); 45 }; 46 47 #define LOADADDR ((caddr_t)0x4000) 48 #define DDB_MAGIC0 ( ('D'<<24) | ('D'<<16) | ('B'<<8) | ('0') ) 49 #define DDB_MAGIC1 ( ('D'<<24) | ('D'<<16) | ('B'<<8) | ('1') ) 50 51 52 extern struct promvec *promvec; 53 extern char *prom_bootdevice; 54 extern char *prom_bootfile; 55 extern int prom_boothow; 56 extern int hz; 57 extern int cputyp, nbpg, pgofset, pgshift; 58 extern int debug; 59 60 extern void prom_init __P((void)); 61 62 /* Note: dvma_*() routines are for "oldmon" machines only */ 63 extern char *dvma_mapin __P((char *, size_t)); 64 extern char *dvma_mapout __P((char *, size_t)); 65 extern char *dvma_alloc __P((int)); 66 67 /* 68 * duplicates from pmap.c for mapping device on "oldmon" machines. 69 */ 70 #include <sparc/sparc/asm.h> 71 72 #define getcontext() lduba(AC_CONTEXT, ASI_CONTROL) 73 #define setcontext(c) stba(AC_CONTEXT, ASI_CONTROL, c) 74 #define getsegmap(va) (cputyp == CPU_SUN4C \ 75 ? lduba(va, ASI_SEGMAP) \ 76 : lduha(va, ASI_SEGMAP)) 77 #define setsegmap(va, pmeg) (cputyp == CPU_SUN4C \ 78 ? stba(va, ASI_SEGMAP, pmeg) \ 79 : stha(va, ASI_SEGMAP, pmeg)) 80 #define getregmap(va) ((unsigned)lduha(va+2, ASI_REGMAP) >> 8) 81 #define setregmap(va, smeg) stha(va+2, ASI_REGMAP, (smeg << 8)) 82 83 #define getpte(va) lda(va, ASI_PTE) 84 #define setpte(va, pte) sta(va, ASI_PTE, pte) 85