/* $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__ */