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/* $NetBSD: tcvar.h,v 1.1 1995/12/20 00:48:36 cgd Exp $ */
/*
* Copyright (c) 1995 Carnegie-Mellon University.
* All rights reserved.
*
* Author: Chris G. Demetriou
*
* Permission to use, copy, modify and distribute this software and
* its documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie the
* rights to redistribute these changes.
*/
#ifndef __DEV_TC_TCVAR_H__
#define __DEV_TC_TCVAR_H__
/*
* TurboChannel autoconfiguration definitions.
*/
#include <dev/tc/tcreg.h>
#include <machine/tc_machdep.h>
/*
* Interrupt levels. XXX should be common, elsewhere.
*/
typedef enum {
TC_IPL_NONE, /* block only this interrupt */
TC_IPL_BIO, /* block disk interrupts */
TC_IPL_NET, /* block network interrupts */
TC_IPL_TTY, /* block terminal interrupts */
TC_IPL_CLOCK, /* block clock interrupts */
} tc_intrlevel_t;
/*
* Arguments used to attach TurboChannel busses.
*/
struct tc_attach_args {
u_int tca_nslots;
struct tc_slotdesc *tca_slots;
u_int tca_nbuiltins;
const struct tc_builtin *tca_builtins;
void (*tca_intr_establish) __P((struct device *, void *,
tc_intrlevel_t, int (*)(void *), void *));
void (*tca_intr_disestablish) __P((struct device *, void *));
};
/*
* Arguments used to attach TurboChannel devices.
*/
struct tcdev_attach_args {
char tcda_modname[TC_ROM_LLEN+1];
u_int tcda_slot;
tc_offset_t tcda_offset;
tc_addr_t tcda_addr;
void *tcda_cookie;
};
/*
* Description of TurboChannel slots, provided by machine-dependent
* code to the TurboChannel bus driver.
*/
struct tc_slotdesc {
tc_addr_t tcs_addr;
void *tcs_cookie;
int tcs_used;
};
/*
* Description of built-in TurboChannel devices, provided by
* machine-dependent code to the TurboChannel bus driver.
*/
struct tc_builtin {
char *tcb_modname;
u_int tcb_slot;
tc_offset_t tcb_offset;
void *tcb_cookie;
};
/*
* Interrupt establishment functions.
*/
void tc_intr_establish __P((struct device *, void *, tc_intrlevel_t,
int (*)(void *), void *));
void tc_intr_disestablish __P((struct device *, void *));
/*
* Easy to remember names for TurboChannel device locators.
*/
#define tccf_slot cf_loc[0] /* slot */
#define tccf_offset cf_loc[1] /* offset */
#define TCCF_SLOT_UNKNOWN -1
#define TCCF_OFFSET_UNKNOWN -1
/*
* The TurboChannel bus cfdriver, so that subdevices can more
* easily tell what bus they're on.
*/
extern struct cfdriver tccd;
#endif /* __DEV_TC_TCVAR_H__ */
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