The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/dev/ic/daicvar.h

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    1 /* $NetBSD: daicvar.h,v 1.6 2003/12/04 13:57:30 keihan 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  * 3. All advertising materials mentioning features or use of this software
   19  *    must display the following acknowledgement:
   20  *        This product includes software developed by the NetBSD
   21  *        Foundation, Inc. and its contributors.
   22  * 4. Neither the name of The NetBSD Foundation nor the names of its
   23  *    contributors may be used to endorse or promote products derived
   24  *    from this software without specific prior written permission.
   25  *
   26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
   27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
   28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
   30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   36  * POSSIBILITY OF SUCH DAMAGE.
   37  */
   38 
   39 #ifndef DIEHLISDNVAR
   40 #define DIEHLISDNVAR
   41 #if defined(KERNEL) || defined(_KERNEL)
   42 
   43 #define DAIC_MAX_PORT           4
   44 #define DAIC_ISA_MEMSIZE        2048
   45 #define DAIC_ISA_QUADSIZE       (DAIC_MAX_PORT*DAIC_ISA_MEMSIZE)
   46 #define DAIC_MAX_ACTIVE         (2*DAIC_MAX_PORT)       /* simlutaneous connections on one instance */
   47 
   48 /* A queue of pending outgoing calls */
   49 struct outcallentry {
   50         TAILQ_ENTRY(outcallentry) queue;
   51         unsigned int cdid;      /* call descriptor id for layer 4 */
   52         u_int8_t dchan_id;      /* task id for microcode */
   53         u_int8_t rc;            /* return code */
   54 };
   55 
   56 /* One active connection */
   57 struct daic_connection {
   58         u_int cdid;                     /* layer 4 call descriptor id */
   59         struct ifqueue tx_queue;        /* outgoing data */
   60         struct ifqueue rx_queue;        /* incoming data */
   61         isdn_link_t isdn_linktab;       /* description of ourself */
   62         const struct isdn_l4_driver_functions 
   63                         *l4_driver;             /* layer 4 driver               */
   64         void            *l4_driver_softc;       /* layer 4 driver instance      */
   65         u_int8_t dchan_inst;            /* d-channel instance */
   66         u_int8_t dchan_rc;              /* return code for dchannel requests */
   67         u_int8_t bchan_inst;            /* b-channel instance */
   68         u_int8_t bchan_rc;              /* return code for bchannel requests */
   69 };
   70 
   71 /*
   72  * One BRI as exposed to the upper layers, with all the internal management
   73  * information we need for it. A pointer to this is passed as the driver
   74  * token.
   75  */
   76 struct daic_unit {
   77         struct daic_softc *du_sc;       /* pointer to softc */
   78         const struct isdn_l3_driver *du_l3;
   79         int du_port;                    /* port number (on multi BRI cards) */
   80         int du_state;                   /* state of board, see below */
   81 #define DAIC_STATE_COLD         0       /* nothing happened to the board */
   82 #define DAIC_STATE_DOWNLOAD     1       /* the card is waiting for protocol code */
   83 #define DAIC_STATE_TESTING      2       /* waiting for first interrupt from card */
   84 #define DAIC_STATE_RUNNING      3       /* the protocol is running */
   85 #define DAIC_STATE_DIAGNOSTIC   4       /* temporary disabled for diagnostics */
   86 
   87         int du_assign;                  /* allocate new protocol instance */
   88 #define DAIC_ASSIGN_PENDING     1       /* we are awaiting a new ID */
   89 #define DAIC_ASSIGN_SLEEPING    2       /* somebody sleeping, wakeup after we got the ID */
   90 #define DAIC_ASSIGN_GLOBAL      4       /* result is a global d-channel id */
   91 #define DAIC_ASSIGN_NOGLOBAL    8       /* need to assign a global d-channel id */
   92 
   93         u_int8_t du_global_dchan;       /* handle of global dchannel instance */
   94         u_int8_t du_request_res;        /* result of requests */
   95         u_int8_t du_assign_res;         /* result of assigns */
   96 };
   97 
   98 /* superclass of all softc structs for attachments, you should
   99  * always be able to cast an attachments struct device *self to this. */
  100 struct daic_softc {
  101         struct device sc_dev;
  102         bus_space_tag_t sc_iot;         /* bus identifier */
  103         bus_space_handle_t sc_ioh;      /* mem handle */
  104         int sc_cardtype;                /* variant of card */
  105 #define DAIC_TYPE_S     0
  106 #define DAIC_TYPE_SX    1
  107 #define DAIC_TYPE_SCOM  2
  108 #define DAIC_TYPE_QUAD  3
  109 
  110         struct daic_unit sc_port[DAIC_MAX_PORT];
  111 
  112         /* one record for each b-channel we could handle concurrently */
  113         struct daic_connection sc_con[DAIC_MAX_ACTIVE];
  114 
  115         /* a tailq of ougoing calls no yet assigned to any b-channel */
  116         TAILQ_HEAD(outcallhead, outcallentry) sc_outcalls[DAIC_MAX_PORT];
  117 };
  118 
  119 /*
  120  * functions exported from MI part
  121  */
  122 extern int daic_probe __P((bus_space_tag_t bus, bus_space_handle_t io));
  123 extern void daic_attach __P((struct device *self, struct daic_softc *sc));
  124 extern int daic_intr __P((struct daic_softc *));
  125 
  126 #endif
  127 #endif

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