sys/dev/tc/tcvar.h

   1 /* $NetBSD: tcvar.h,v 1.23 2007/10/19 12:01:20 ad 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@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 <sys/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 <sys/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)(device_t, void *);
  73         void    (*sc_intr_establish)(device_t, void *,
  74                         int, int (*)(void *), void *);
  75         void    (*sc_intr_disestablish)(device_t, 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)(device_t, void *);
  96         void    (*tba_intr_establish)(device_t, void *,
  97                         int, int (*)(void *), void *);
  98         void    (*tba_intr_disestablish)(device_t, 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(device_t, device_t, void *);
 143 const struct evcnt *tc_intr_evcnt(device_t, void *);
 144 void    tc_intr_establish(device_t, void *, int, int (*)(void *),
 145             void *);
 146 void    tc_intr_disestablish(device_t, 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__ */