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Annotation of sys/dev/ic/adw.h, Revision 1.1

1.1     ! nbrk        1: /*     $OpenBSD: adw.h,v 1.9 2002/03/14 01:26:53 millert Exp $ */
        !             2: /*      $NetBSD: adw.h,v 1.9 2000/05/26 15:13:43 dante Exp $        */
        !             3:
        !             4: /*
        !             5:  * Generic driver definitions and exported functions for the Advanced
        !             6:  * Systems Inc. SCSI controllers
        !             7:  *
        !             8:  * Copyright (c) 1998, 1999, 2000 The NetBSD Foundation, Inc.
        !             9:  * All rights reserved.
        !            10:  *
        !            11:  * Author: Baldassare Dante Profeta <dante@mclink.it>
        !            12:  *
        !            13:  * Redistribution and use in source and binary forms, with or without
        !            14:  * modification, are permitted provided that the following conditions
        !            15:  * are met:
        !            16:  * 1. Redistributions of source code must retain the above copyright
        !            17:  *    notice, this list of conditions and the following disclaimer.
        !            18:  * 2. Redistributions in binary form must reproduce the above copyright
        !            19:  *    notice, this list of conditions and the following disclaimer in the
        !            20:  *    documentation and/or other materials provided with the distribution.
        !            21:  * 3. All advertising materials mentioning features or use of this software
        !            22:  *    must display the following acknowledgement:
        !            23:  *        This product includes software developed by the NetBSD
        !            24:  *        Foundation, Inc. and its contributors.
        !            25:  * 4. Neither the name of The NetBSD Foundation nor the names of its
        !            26:  *    contributors may be used to endorse or promote products derived
        !            27:  *    from this software without specific prior written permission.
        !            28:  *
        !            29:  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
        !            30:  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
        !            31:  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
        !            32:  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
        !            33:  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
        !            34:  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
        !            35:  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
        !            36:  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
        !            37:  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
        !            38:  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
        !            39:  * POSSIBILITY OF SUCH DAMAGE.
        !            40:  */
        !            41:
        !            42: #ifndef _ADVANSYS_WIDE_H_
        !            43: #define _ADVANSYS_WIDE_H_
        !            44:
        !            45: /******************************************************************************/
        !            46:
        !            47: typedef int (* ADW_ISR_CALLBACK) (ADW_SOFTC *, ADW_SCSI_REQ_Q *);
        !            48: typedef void (* ADW_ASYNC_CALLBACK) (ADW_SOFTC *, u_int8_t);
        !            49:
        !            50:
        !            51: /*
        !            52:  * per request scatter-gather element limit
        !            53:  * We could have up to 256 SG lists.
        !            54:  */
        !            55: #define ADW_MAX_SG_LIST                255
        !            56:
        !            57: /*
        !            58:  * Scatter-Gather Definitions per request.
        !            59:  */
        !            60:
        !            61: #define NO_OF_SG_PER_BLOCK     15
        !            62:
        !            63: /* Number of SG blocks needed. */
        !            64: #define ADW_NUM_SG_BLOCK \
        !            65:        ((ADW_MAX_SG_LIST + (NO_OF_SG_PER_BLOCK - 1))/NO_OF_SG_PER_BLOCK)
        !            66:
        !            67:
        !            68: struct adw_ccb {
        !            69:        ADW_SCSI_REQ_Q          scsiq;
        !            70:        ADW_SG_BLOCK            sg_block[ADW_NUM_SG_BLOCK];
        !            71:
        !            72:        struct scsi_sense_data  scsi_sense;
        !            73:
        !            74:        TAILQ_ENTRY(adw_ccb)    chain;
        !            75:        struct adw_ccb          *nexthash;
        !            76:        u_int32_t               hashkey;
        !            77:
        !            78:        struct scsi_xfer        *xs;    /* the scsi_xfer for this cmd */
        !            79:        int                     flags;  /* see below */
        !            80:
        !            81:        int                     timeout;
        !            82:
        !            83:        /*
        !            84:         * This DMA map maps the buffer involved in the transfer.
        !            85:         */
        !            86:        bus_dmamap_t            dmamap_xfer;
        !            87: };
        !            88:
        !            89: typedef struct adw_ccb ADW_CCB;
        !            90:
        !            91: /* flags for ADW_CCB */
        !            92: #define CCB_ALLOC      0x01
        !            93: #define CCB_ABORTING   0x02
        !            94: #define CCB_ABORTED    0x04
        !            95:
        !            96:
        !            97: #define ADW_MAX_CCB    63      /* Max. number commands per device (63) */
        !            98:
        !            99: struct adw_control {
        !           100:        ADW_CCB         ccbs[ADW_MAX_CCB];      /* all our control blocks */
        !           101:        ADW_CARRIER     *carriers;              /* all our carriers */
        !           102: };
        !           103:
        !           104: /*
        !           105:  * Offset of a CCB from the beginning of the control DMA mapping.
        !           106:  */
        !           107: #define        ADW_CCB_OFF(c)  (offsetof(struct adw_control, ccbs[0]) +        \
        !           108:                    (((u_long)(c)) - ((u_long)&sc->sc_control->ccbs[0])))
        !           109:
        !           110: /******************************************************************************/
        !           111:
        !           112: int adw_init(ADW_SOFTC *sc);
        !           113: void adw_attach(ADW_SOFTC *sc);
        !           114: int adw_intr(void *arg);
        !           115: ADW_CCB *adw_ccb_phys_kv(ADW_SOFTC *, u_int32_t);
        !           116:
        !           117: /******************************************************************************/
        !           118:
        !           119: #endif /* _ADVANSYS_ADW_H_ */