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autoconf.h revision 1.9 
      1 /* $NetBSD: autoconf.h,v 1.9 1997/07/25 06:59:47 cgd Exp $ */
      2 
      3 /*
      4  * Copyright (c) 1994, 1995, 1996 Carnegie-Mellon University.
      5  * All rights reserved.
      6  *
      7  * Author: Chris G. Demetriou
      8  *
      9  * Permission to use, copy, modify and distribute this software and
     10  * its documentation is hereby granted, provided that both the copyright
     11  * notice and this permission notice appear in all copies of the
     12  * software, derivative works or modified versions, and any portions
     13  * thereof, and that both notices appear in supporting documentation.
     14  *
     15  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
     16  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
     17  * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
     18  *
     19  * Carnegie Mellon requests users of this software to return to
     20  *
     21  *  Software Distribution Coordinator  or  Software.Distribution (at) CS.CMU.EDU
     22  *  School of Computer Science
     23  *  Carnegie Mellon University
     24  *  Pittsburgh PA 15213-3890
     25  *
     26  * any improvements or extensions that they make and grant Carnegie the
     27  * rights to redistribute these changes.
     28  */
     29 
     30 /*
     31  * Machine-dependent structures of autoconfiguration
     32  */
     33 
     34 struct confargs;
     35 
     36 typedef int (*intr_handler_t) __P((void *));
     37 
     38 struct abus {
     39 	struct	device *ab_dv;		/* back-pointer to device */
     40 	int	ab_type;		/* bus type (see below) */
     41 	void	(*ab_intr_establish)	/* bus's set-handler function */
     42 		    __P((struct confargs *, intr_handler_t, void *));
     43 	void	(*ab_intr_disestablish)	/* bus's unset-handler function */
     44 		    __P((struct confargs *));
     45 	caddr_t	(*ab_cvtaddr)		/* convert slot/offset to address */
     46 		    __P((struct confargs *));
     47 	int	(*ab_matchname)		/* see if name matches driver */
     48 		    __P((struct confargs *, char *));
     49 };
     50 
     51 #define	BUS_MAIN	1		/* mainbus */
     52 #define	BUS_TC		2		/* TurboChannel */
     53 #define	BUS_ASIC	3		/* IOCTL ASIC; under TurboChannel */
     54 #define	BUS_TCDS	4		/* TCDS ASIC; under TurboChannel */
     55 
     56 #define	BUS_INTR_ESTABLISH(ca, handler, val)				\
     57 	    (*(ca)->ca_bus->ab_intr_establish)((ca), (handler), (val))
     58 #define	BUS_INTR_DISESTABLISH(ca)					\
     59 	    (*(ca)->ca_bus->ab_intr_establish)(ca)
     60 #define	BUS_CVTADDR(ca)							\
     61 	    (*(ca)->ca_bus->ab_cvtaddr)(ca)
     62 #define	BUS_MATCHNAME(ca, name)						\
     63 	    (*(ca)->ca_bus->ab_matchname)((ca), (name))
     64 
     65 struct confargs {
     66 	char	*ca_name;		/* Device name. */
     67 	int	ca_slot;		/* Device slot. */
     68 	int	ca_offset;		/* Offset into slot. */
     69 	struct	abus *ca_bus;		/* bus device resides on. */
     70 };
     71 
     72 struct bootdev_data {
     73 	char	*protocol;
     74 	int	bus;
     75 	int	slot;
     76 	int	channel;
     77 	char	*remote_address;
     78 	int	unit;
     79 	int	boot_dev_type;
     80 	char	*ctrl_dev_type;
     81 };
     82 
     83 /*
     84  * The boot program passes a pointer to a bootinfo to the kernel
     85  * using the following convention:
     86  *
     87  *	a0 contains first free page frame number
     88  *	a1 contains page number of current level 1 page table
     89  *	if a2 contains BOOTINFO_MAGIC:
     90  *		a3 contains (boot env. virtual) address of bootinfo
     91  */
     92 
     93 #define	BOOTINFO_MAGIC		0xdeadbeeffeedface
     94 
     95 struct bootinfo_v1 {
     96 	u_long	ssym;			/* 0: start of kernel sym table	*/
     97 	u_long	esym;			/* 8: end of kernel sym table	*/
     98 	char	boot_flags[64];		/* 16: boot flags		*/
     99 	char	booted_kernel[64];	/* 80: name of booted kernel	*/
    100 	void	*hwrpb;			/* 144: hwrpb pointer */
    101 	int	(*cngetc) __P((void));	/* 152: console getc pointer	*/
    102 	void	(*cnputc) __P((int));	/* 160: console putc pointer	*/
    103 	void	(*cnpollc) __P((int));	/* 168: console pollc pointer	*/
    104 					/* 176: total size		*/
    105 };
    106 
    107 struct bootinfo {
    108 	u_long	version;		/* 0: version number		*/
    109 	union {				/* 8: union:			*/
    110 		struct bootinfo_v1 v1;	/*    version 1 boot info	*/
    111 		char pad[256];		/*    space rsvd for future use	*/
    112 	} un;				/*				*/
    113 					/* 264: total size		*/
    114 };
    115 
    116 #ifdef EVCNT_COUNTERS
    117 extern struct evcnt clock_intr_evcnt;
    118 #endif
    119 
    120 extern struct device *booted_device;
    121 extern int booted_partition;
    122 extern struct bootdev_data *bootdev_data;
    123