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/* $OpenBSD: tcvar.h,v 1.6 1996/12/08 01:03:07 niklas Exp $ */
/* $NetBSD: tcvar.h,v 1.7 1996/10/22 21:37:31 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__
/*
* Definitions for TurboChannel autoconfiguration.
*/
#ifdef __alpha__ /* XXX pmax does not yet have machine/bus.h */
#include <machine/bus.h>
#endif
#include <dev/tc/tcreg.h>
/*
* Machine-dependent definitions.
*/
#if (alpha + pmax != 1)
ERROR: COMPILING FOR UNSUPPORTED MACHINE, OR MORE THAN ONE.
#endif
#if alpha
#include <alpha/tc/tc_machdep.h>
#endif
#if pmax
#include <machine/tc_machdep.h>
#endif
/*
* In the long run, the following block will go completely away
* (i.e. both parts of the #if, including the #include, etc.).
* For now, the MI TC code still uses the old definitions provided
* by the pmax port, and not the new definitions provided by the
* alpha port.
*/
#ifdef __alpha__
/*
* On the alpha, map the new definitions to the old.
*/
#include <machine/intr.h>
#define tc_intrlevel_t int
#define TC_IPL_NONE IPL_NONE
#define TC_IPL_BIO IPL_BIO
#define TC_IPL_NET IPL_NET
#define TC_IPL_TTY IPL_TTY
#define TC_IPL_CLOCK IPL_CLOCK
#else
/*
* On the pmax, we still need the old definitions.
*/
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;
#endif
/*
* Arguments used to attach TurboChannel busses.
*/
struct tcbus_attach_args {
char *tba_busname; /* XXX should be common */
#ifdef __alpha__ /* XXX */
bus_space_tag_t tba_memt;
#endif
/* Bus information */
u_int tba_speed; /* see TC_SPEED_* below */
u_int tba_nslots;
struct tc_slotdesc *tba_slots;
u_int tba_nbuiltins;
const struct tc_builtin *tba_builtins;
/* TC bus resource management; XXX will move elsewhere eventually. */
void (*tba_intr_establish) __P((struct device *, void *,
tc_intrlevel_t, int (*)(void *), void *));
void (*tba_intr_disestablish) __P((struct device *, void *));
};
/*
* Arguments used to attach TurboChannel devices.
*/
struct tc_attach_args {
#ifdef __alpha__ /* XXX */
bus_space_tag_t ta_memt;
#endif
char ta_modname[TC_ROM_LLEN+1];
u_int ta_slot;
tc_offset_t ta_offset;
tc_addr_t ta_addr;
void *ta_cookie;
u_int ta_busspeed; /* see TC_SPEED_* below */
};
/*
* 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
/*
* Miscellaneous definitions.
*/
#define TC_SPEED_12_5_MHZ 0 /* 12.5MHz TC bus */
#define TC_SPEED_25_MHZ 1 /* 25MHz TC bus */
/*
* The TurboChannel bus cfdriver, so that subdevices can more
* easily tell what bus they're on.
*/
extern struct cfdriver tc_cd;
#endif /* __DEV_TC_TCVAR_H__ */
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