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/ct/bshwvar.h

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    1 /* $FreeBSD: releng/8.1/sys/dev/ct/bshwvar.h 139749 2005-01-06 01:43:34Z imp $ */
    2 /*      $NecBSD: bshwvar.h,v 1.3.14.3 2001/06/21 04:07:37 honda Exp $   */
    3 /*      $NetBSD$        */
    4 
    5 /*-
    6  * [NetBSD for NEC PC-98 series]
    7  *  Copyright (c) 1994, 1995, 1996, 1997, 1998
    8  *      NetBSD/pc98 porting staff. All rights reserved.
    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. 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
   23  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   24  * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
   25  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
   26  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
   27  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
   29  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
   30  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   31  * POSSIBILITY OF SUCH DAMAGE.
   32  */
   33 #ifndef _BSHWVAR_H_
   34 #define _BSHWVAR_H_
   35 
   36 /*
   37  * bshwvar.h
   38  * NEC 55 compatible board specific definitions
   39  */
   40 
   41 #define BSHW_DEFAULT_CHIPCLK    20      /* 20MHz */
   42 #define BSHW_DEFAULT_HOSTID     7
   43 
   44 struct bshw {
   45 #define BSHW_SYNC_RELOAD        0x01
   46 #define BSHW_SMFIFO             0x02
   47 #define BSHW_DOUBLE_DMACHAN     0x04
   48         u_int hw_flags;
   49         u_int hw_sregaddr;
   50 
   51         int ((*hw_dma_init)(struct ct_softc *));
   52         void ((*hw_dma_start)(struct ct_softc *));
   53         void ((*hw_dma_stop)(struct ct_softc *));
   54 };
   55 
   56 struct bshw_softc {
   57         int sc_hostid;
   58         int sc_irq;                     /* irq */
   59         int sc_drq;                     /* drq */
   60 
   61         /* dma transfer */
   62         u_int8_t *sc_segaddr;
   63         u_int8_t *sc_bufp;
   64         int sc_seglen;
   65         u_int sc_sdatalen;              /* SMIT */
   66         u_int sc_edatalen;              /* SMIT */
   67 
   68         /* private bounce */
   69         u_int8_t *sc_bounce_phys;
   70         u_int8_t *sc_bounce_addr;
   71         u_int sc_bounce_size;
   72         bus_addr_t sc_minphys;
   73         
   74         /* io control */
   75 #define BSHW_READ_INTERRUPT_DRIVEN      0x0001
   76 #define BSHW_WRITE_INTERRUPT_DRIVEN     0x0002
   77 #define BSHW_DMA_BLOCK                  0x0010
   78 #define BSHW_SMIT_BLOCK                 0x0020
   79         u_int sc_io_control;
   80 
   81         /* hardware */
   82         struct bshw *sc_hw;
   83         void ((*sc_dmasync_before))(struct ct_softc *);
   84         void ((*sc_dmasync_after))(struct ct_softc *);
   85 };
   86 
   87 void bshw_synch_setup(struct ct_softc *, struct targ_info *);
   88 void bshw_bus_reset(struct ct_softc *);
   89 int bshw_read_settings(struct ct_bus_access_handle *, struct bshw_softc *);
   90 int bshw_smit_xfer_start(struct ct_softc *);
   91 void bshw_smit_xfer_stop(struct ct_softc *);
   92 int bshw_dma_xfer_start(struct ct_softc *);
   93 void bshw_dma_xfer_stop(struct ct_softc *);
   94 
   95 extern struct dvcfg_hwsel bshw_hwsel;
   96 #endif  /* !_BSHWVAR_H_ */

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