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tcvar.h revision 1.21 
      1 /* $NetBSD: tcvar.h,v 1.21 2005/06/01 16:17:40 drochner 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 #include <machine/tc_machdep.h>
     44 
     45 /*
     46  * In the long run, the following block will go completely away.
     47  * For now, the MI TC code still uses the old TC_IPL_ names
     48  * and not the new IPL_ names.
     49  */
     50 #if 1
     51 /*
     52  * Map the new definitions to the old.
     53  */
     54 #include <machine/intr.h>
     55 
     56 #define tc_intrlevel_t	int
     57 
     58 #define	TC_IPL_NONE	IPL_NONE
     59 #define	TC_IPL_BIO	IPL_BIO
     60 #define	TC_IPL_NET	IPL_NET
     61 #define	TC_IPL_TTY	IPL_TTY
     62 #define	TC_IPL_CLOCK	IPL_CLOCK
     63 #endif /* 1 */
     64 
     65 struct tc_softc {
     66 	struct	device sc_dv;
     67 
     68 	int	sc_speed;
     69 	int	sc_nslots;
     70 	struct tc_slotdesc *sc_slots;
     71 
     72 	const struct evcnt *(*sc_intr_evcnt)(struct device *, void *);
     73 	void	(*sc_intr_establish)(struct device *, void *,
     74 			int, int (*)(void *), void *);
     75 	void	(*sc_intr_disestablish)(struct device *, void *);
     76 	bus_dma_tag_t (*sc_get_dma_tag)(int);
     77 };
     78 
     79 /*
     80  * Arguments used to attach TURBOchannel busses.
     81  */
     82 struct tcbus_attach_args {
     83 	const char		*tba_busname;	/* XXX should be common */
     84 	bus_space_tag_t tba_memt;
     85 
     86 	/* Bus information */
     87 	u_int		tba_speed;		/* see TC_SPEED_* below */
     88 	u_int		tba_nslots;
     89 	struct tc_slotdesc *tba_slots;
     90 	u_int		tba_nbuiltins;
     91 	const struct tc_builtin *tba_builtins;
     92 
     93 
     94 	/* TC bus resource management; XXX will move elsewhere eventually. */
     95 	const struct evcnt *(*tba_intr_evcnt)(struct device *, void *);
     96 	void	(*tba_intr_establish)(struct device *, void *,
     97 			int, int (*)(void *), void *);
     98 	void	(*tba_intr_disestablish)(struct device *, void *);
     99 	bus_dma_tag_t (*tba_get_dma_tag)(int);
    100 };
    101 
    102 /*
    103  * Arguments used to attach TURBOchannel devices.
    104  */
    105 struct tc_attach_args {
    106 	bus_space_tag_t ta_memt;
    107 	bus_dma_tag_t	ta_dmat;
    108 
    109 	char		ta_modname[TC_ROM_LLEN+1];
    110 	u_int		ta_slot;
    111 	tc_offset_t	ta_offset;
    112 	tc_addr_t	ta_addr;
    113 	void		*ta_cookie;
    114 	u_int		ta_busspeed;		/* see TC_SPEED_* below */
    115 };
    116 
    117 /*
    118  * Description of TURBOchannel slots, provided by machine-dependent
    119  * code to the TURBOchannel bus driver.
    120  */
    121 struct tc_slotdesc {
    122 	tc_addr_t	tcs_addr;
    123 	void		*tcs_cookie;
    124 	int		tcs_used;
    125 };
    126 
    127 /*
    128  * Description of built-in TURBOchannel devices, provided by
    129  * machine-dependent code to the TURBOchannel bus driver.
    130  */
    131 struct tc_builtin {
    132 	const char	*tcb_modname;
    133 	u_int		tcb_slot;
    134 	tc_offset_t	tcb_offset;
    135 	void		*tcb_cookie;
    136 };
    137 
    138 /*
    139  * Interrupt establishment functions.
    140  */
    141 int	tc_checkslot(tc_addr_t, char *);
    142 void	tcattach(struct device *, struct device *, void *);
    143 const struct evcnt *tc_intr_evcnt(struct device *, void *);
    144 void	tc_intr_establish(struct device *, void *, int, int (*)(void *),
    145 	    void *);
    146 void	tc_intr_disestablish(struct device *, void *);
    147 
    148 /*
    149  * Miscellaneous definitions.
    150  */
    151 #define	TC_SPEED_12_5_MHZ	0		/* 12.5MHz TC bus */
    152 #define	TC_SPEED_25_MHZ		1		/* 25MHz TC bus */
    153 
    154 #endif /* __DEV_TC_TCVAR_H__ */
    155