eb45b93a9a
deal with stuff like: (1) configuring built-in devices, (2) looking at TC slots configuring any devices found. The lists of slots, slot locations, etc. and built-in devices are provided by machine-dependent code. Interrupt handling is also provided by machine-dependent code, but the MD code provides hooks so that standard names for 'establish' and 'disestablish' can be used in drivers. This code requires <machine/tc_machdep.h>, which defines some portability types specific to the TurboChannel bus code.
121 lines
3.1 KiB
C
121 lines
3.1 KiB
C
/* $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__ */
|