sys/dev/ic/daicvar.h

   1 /* $NetBSD: daicvar.h,v 1.10 2008/04/28 20:23:49 martin Exp $ */
   2
   3 /*-
   4  * Copyright (c) 2002 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Martin Husemann <martin@NetBSD.org>.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 #ifndef DIEHLISDNVAR
  33 #define DIEHLISDNVAR
  34 #if defined(KERNEL) || defined(_KERNEL)
  35
  36 #define DAIC_MAX_PORT           4
  37 #define DAIC_ISA_MEMSIZE        2048
  38 #define DAIC_ISA_QUADSIZE       (DAIC_MAX_PORT*DAIC_ISA_MEMSIZE)
  39 #define DAIC_MAX_ACTIVE         (2*DAIC_MAX_PORT)       /* simlutaneous connections on one instance */
  40
  41 /* A queue of pending outgoing calls */
  42 struct outcallentry {
  43         TAILQ_ENTRY(outcallentry) queue;
  44         unsigned int cdid;      /* call descriptor id for layer 4 */
  45         u_int8_t dchan_id;      /* task id for microcode */
  46         u_int8_t rc;            /* return code */
  47 };
  48
  49 /* One active connection */
  50 struct daic_connection {
  51         u_int cdid;                     /* layer 4 call descriptor id */
  52         struct ifqueue tx_queue;        /* outgoing data */
  53         struct ifqueue rx_queue;        /* incoming data */
  54         isdn_link_t isdn_linktab;       /* description of ourself */
  55         const struct isdn_l4_driver_functions
  56                         *l4_driver;             /* layer 4 driver               */
  57         void            *l4_driver_softc;       /* layer 4 driver instance      */
  58         u_int8_t dchan_inst;            /* d-channel instance */
  59         u_int8_t dchan_rc;              /* return code for dchannel requests */
  60         u_int8_t bchan_inst;            /* b-channel instance */
  61         u_int8_t bchan_rc;              /* return code for bchannel requests */
  62 };
  63
  64 /*
  65  * One BRI as exposed to the upper layers, with all the internal management
  66  * information we need for it. A pointer to this is passed as the driver
  67  * token.
  68  */
  69 struct daic_unit {
  70         struct daic_softc *du_sc;       /* pointer to softc */
  71         const struct isdn_l3_driver *du_l3;
  72         int du_port;                    /* port number (on multi BRI cards) */
  73         int du_state;                   /* state of board, see below */
  74 #define DAIC_STATE_COLD         0       /* nothing happened to the board */
  75 #define DAIC_STATE_DOWNLOAD     1       /* the card is waiting for protocol code */
  76 #define DAIC_STATE_TESTING      2       /* waiting for first interrupt from card */
  77 #define DAIC_STATE_RUNNING      3       /* the protocol is running */
  78 #define DAIC_STATE_DIAGNOSTIC   4       /* temporary disabled for diagnostics */
  79
  80         int du_assign;                  /* allocate new protocol instance */
  81 #define DAIC_ASSIGN_PENDING     1       /* we are awaiting a new ID */
  82 #define DAIC_ASSIGN_SLEEPING    2       /* somebody sleeping, wakeup after we got the ID */
  83 #define DAIC_ASSIGN_GLOBAL      4       /* result is a global d-channel id */
  84 #define DAIC_ASSIGN_NOGLOBAL    8       /* need to assign a global d-channel id */
  85
  86         u_int8_t du_global_dchan;       /* handle of global dchannel instance */
  87         u_int8_t du_request_res;        /* result of requests */
  88         u_int8_t du_assign_res;         /* result of assigns */
  89 };
  90
  91 /* superclass of all softc structs for attachments, you should
  92  * always be able to cast an attachments device_t self to this. */
  93 struct daic_softc {
  94         struct device sc_dev;
  95         bus_space_tag_t sc_iot;         /* bus identifier */
  96         bus_space_handle_t sc_ioh;      /* mem handle */
  97         int sc_cardtype;                /* variant of card */
  98 #define DAIC_TYPE_S     0
  99 #define DAIC_TYPE_SX    1
 100 #define DAIC_TYPE_SCOM  2
 101 #define DAIC_TYPE_QUAD  3
 102
 103         struct daic_unit sc_port[DAIC_MAX_PORT];
 104
 105         /* one record for each b-channel we could handle concurrently */
 106         struct daic_connection sc_con[DAIC_MAX_ACTIVE];
 107
 108         /* a tailq of ougoing calls no yet assigned to any b-channel */
 109         TAILQ_HEAD(outcallhead, outcallentry) sc_outcalls[DAIC_MAX_PORT];
 110 };
 111
 112 /*
 113  * functions exported from MI part
 114  */
 115 extern int daic_probe(bus_space_tag_t bus, bus_space_handle_t io);
 116 extern void daic_attach(device_t self, struct daic_softc *sc);
 117 extern int daic_intr(struct daic_softc *);
 118
 119 #endif
 120 #endif