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tcvar.h revision 1.12 
      1 /*	$NetBSD: tcvar.h,v 1.12 1998/04/19 13:04:24 jonathan Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1995 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 #ifndef __DEV_TC_TCVAR_H__
     31 #define __DEV_TC_TCVAR_H__
     32 
     33 /*
     34  * Definitions for TurboChannel autoconfiguration.
     35  */
     36 
     37 #include <machine/bus.h>
     38 #include <dev/tc/tcreg.h>
     39 
     40 /*
     41  * Machine-dependent definitions.
     42  */
     43 #if (alpha + pmax != 1)
     44 ERROR: COMPILING FOR UNSUPPORTED MACHINE, OR MORE THAN ONE.
     45 #endif
     46 #if alpha
     47 #include <alpha/tc/tc_machdep.h>
     48 #endif
     49 #if pmax
     50 #include <machine/tc_machdep.h>
     51 #endif
     52 
     53 /*
     54  * In the long run, the following block will go completely away.
     55  * For now, the MI TC code still uses the old TC_IPL_ names
     56  * and not the new IPL_ names.
     57  */
     58 #if 1
     59 /*
     60  * Map the new definitions to the old.
     61  */
     62 #include <machine/intr.h>
     63 
     64 #define tc_intrlevel_t	int
     65 
     66 #define	TC_IPL_NONE	IPL_NONE
     67 #define	TC_IPL_BIO	IPL_BIO
     68 #define	TC_IPL_NET	IPL_NET
     69 #define	TC_IPL_TTY	IPL_TTY
     70 #define	TC_IPL_CLOCK	IPL_CLOCK
     71 #endif /* 1 */
     72 
     73 
     74 /*
     75  * Arguments used to attach TurboChannel busses.
     76  */
     77 struct tcbus_attach_args {
     78 	char		*tba_busname;		/* XXX should be common */
     79 	bus_space_tag_t tba_memt;
     80 
     81 	/* Bus information */
     82 	u_int		tba_speed;		/* see TC_SPEED_* below */
     83 	u_int		tba_nslots;
     84 	struct tc_slotdesc *tba_slots;
     85 	u_int		tba_nbuiltins;
     86 	const struct tc_builtin *tba_builtins;
     87 
     88 
     89 	/* TC bus resource management; XXX will move elsewhere eventually. */
     90 	void	(*tba_intr_establish) __P((struct device *, void *,
     91 		    tc_intrlevel_t, int (*)(void *), void *));
     92 	void	(*tba_intr_disestablish) __P((struct device *, void *));
     93 #ifdef __alpha__
     94 	bus_dma_tag_t (*tba_get_dma_tag) __P((int));
     95 #endif
     96 };
     97 
     98 /*
     99  * Arguments used to attach TurboChannel devices.
    100  */
    101 struct tc_attach_args {
    102 	bus_space_tag_t ta_memt;
    103 #ifdef __alpha__
    104 	bus_dma_tag_t	ta_dmat;
    105 #endif
    106 
    107 	char		ta_modname[TC_ROM_LLEN+1];
    108 	u_int		ta_slot;
    109 	tc_offset_t	ta_offset;
    110 	tc_addr_t	ta_addr;
    111 	void		*ta_cookie;
    112 	u_int		ta_busspeed;		/* see TC_SPEED_* below */
    113 };
    114 
    115 /*
    116  * Description of TurboChannel slots, provided by machine-dependent
    117  * code to the TurboChannel bus driver.
    118  */
    119 struct tc_slotdesc {
    120 	tc_addr_t	tcs_addr;
    121 	void		*tcs_cookie;
    122 	int		tcs_used;
    123 };
    124 
    125 /*
    126  * Description of built-in TurboChannel devices, provided by
    127  * machine-dependent code to the TurboChannel bus driver.
    128  */
    129 struct tc_builtin {
    130 	char		*tcb_modname;
    131 	u_int		tcb_slot;
    132 	tc_offset_t	tcb_offset;
    133 	void		*tcb_cookie;
    134 };
    135 
    136 /*
    137  * Interrupt establishment functions.
    138  */
    139 void	tc_intr_establish __P((struct device *, void *, tc_intrlevel_t,
    140 	    int (*)(void *), void *));
    141 void	tc_intr_disestablish __P((struct device *, void *));
    142 
    143 #include "locators.h"
    144 /*
    145  * Easy to remember names for TurboChannel device locators.
    146  */
    147 #define	tccf_slot	cf_loc[TCCF_SLOT]		/* slot */
    148 #define	tccf_offset	cf_loc[TCCF_OFFSET]		/* offset */
    149 
    150 #define	TCCF_SLOT_UNKNOWN	TCCF_SLOT_DEFAULT
    151 #define	TCCF_OFFSET_UNKNOWN	TCCF_OFFSET_DEFAULT
    152 
    153 /*
    154  * Miscellaneous definitions.
    155  */
    156 #define	TC_SPEED_12_5_MHZ	0		/* 12.5MHz TC bus */
    157 #define	TC_SPEED_25_MHZ		1		/* 25MHz TC bus */
    158 
    159 #endif /* __DEV_TC_TCVAR_H__ */
    160