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Annotation of sys/arch/vax/mba/mbavar.h, Revision 1.1.1.1

1.1       nbrk        1: /*     $OpenBSD: mbavar.h,v 1.7 2007/05/10 17:59:26 deraadt Exp $      */
                      2: /*     $NetBSD: mbavar.h,v 1.7 2000/06/04 18:04:39 ragge Exp $ */
                      3: /*
                      4:  * Copyright (c) 1994 Ludd, University of Lule}, Sweden
                      5:  * All rights reserved.
                      6:  *
                      7:  * Redistribution and use in source and binary forms, with or without
                      8:  * modification, are permitted provided that the following conditions
                      9:  * are met:
                     10:  * 1. Redistributions of source code must retain the above copyright
                     11:  *    notice, this list of conditions and the following disclaimer.
                     12:  * 2. Redistributions in binary form must reproduce the above copyright
                     13:  *    notice, this list of conditions and the following disclaimer in the
                     14:  *    documentation and/or other materials provided with the distribution.
                     15:  * 3. All advertising materials mentioning features or use of this software
                     16:  *    must display the following acknowledgement:
                     17:  *      This product includes software developed at Ludd, University of Lule}.
                     18:  * 4. The name of the author may not be used to endorse or promote products
                     19:  *    derived from this software without specific prior written permission
                     20:  *
                     21:  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
                     22:  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
                     23:  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
                     24:  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
                     25:  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
                     26:  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
                     27:  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
                     28:  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
                     29:  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
                     30:  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
                     31:  */
                     32:
                     33: #include <sys/device.h>
                     34: #include <machine/scb.h>
                     35:
                     36: #define MBCR_INIT      1
                     37: #define        MBCR_IE         (1<<2)
                     38: #define        MBDS_DPR        (1<<8)
                     39: #define        MBSR_NED        (1<<18)
                     40: #define        MBDT_MOH        (1<<13)
                     41: #define        MBDT_TYPE       511
                     42: #define MBDT_TAP       (1<<14)
                     43:
                     44: #define        CLOSED          0
                     45: #define        WANTOPEN        1
                     46: #define        RDLABEL         2
                     47: #define        OPEN            3
                     48: #define        OPENRAW         4
                     49:
                     50: #define        MAXMBADEV       8       /* Max units per MBA */
                     51:
                     52: /*
                     53:  * Devices that have different device drivers.
                     54:  */
                     55: enum   mb_devices {
                     56:        MB_RP,  /* RM/RP disk */
                     57:        MB_TU,  /* TM03 based tape, ex. TU45 or TU77 */
                     58:        MB_MT   /* TU78 tape */
                     59: };
                     60:
                     61: /*
                     62:  * Current state of the adapter.
                     63:  */
                     64: enum    sc_state {
                     65:        SC_AUTOCONF,
                     66:        SC_ACTIVE,
                     67:        SC_IDLE
                     68: };
                     69:
                     70: /*
                     71:  * Return value after a finished data transfer, from device driver.
                     72:  */
                     73: enum   xfer_action {
                     74:        XFER_RESTART,
                     75:        XFER_FINISH
                     76: };
                     77:
                     78: /*
                     79:  * Info passed do unit device driver during autoconfig.
                     80:  */
                     81: struct mba_attach_args {
                     82:        int     ma_unit;
                     83:         int    ma_type;
                     84:        char    *ma_name;
                     85:        enum    mb_devices ma_devtyp;
                     86:        bus_space_tag_t ma_iot;
                     87:        bus_space_handle_t ma_ioh;
                     88: };
                     89:
                     90: /*
                     91:  * Common struct used to communicate between the mba device driver
                     92:  * and the unit device driver.
                     93:  */
                     94: struct mba_device {
                     95:        struct  mba_device *md_back;    /* linked list of runnable devices */
                     96:            /* Start routine to be called by mbastart. */
                     97:        void    (*md_start)(struct mba_device *);
                     98:            /* Routine to be called after attn intr */
                     99:        int     (*md_attn)(struct mba_device *);
                    100:            /* Call after xfer finish */
                    101:        enum    xfer_action (*md_finish)(struct mba_device *, int, int *);
                    102:        void    *md_softc;      /* Backpointer to this units softc. */
                    103:        struct  mba_softc *md_mba;
                    104:        struct  buf_queue md_q; /* queue of I/O requests */
                    105: };
                    106:
                    107: struct mba_softc {
                    108:        struct  device sc_dev;
                    109:        bus_space_tag_t sc_iot;
                    110:        bus_space_handle_t sc_ioh;
                    111:        struct  mba_device *sc_first, *sc_last;
                    112:        enum    sc_state sc_state;
                    113:        struct  mba_device *sc_md[MAXMBADEV];
                    114: };
                    115:
                    116: struct  mbaunit {
                    117:        int     nr;
                    118:        char    *name;
                    119:        enum    mb_devices devtyp;
                    120: };
                    121:
                    122: /* Common prototypes */
                    123: void   mbaqueue(struct mba_device *);
                    124: