usr/src/sys/news3400/hbdev/dmac_0448.h

/*
 * Copyright (c) 1992 The Regents of the University of California.
 * All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * Sony Corp. and Kazumasa Utashiro of Software Research Associates, Inc.
 *
 * %sccs.include.redist.c%
 *
 * from: $Hdr: dmac_0448.h,v 4.300 91/06/09 06:21:36 root Rel41 $ SONY
 *
 *      @(#)dmac_0448.h 7.1 (Berkeley) %G%
 */

/*
 * Copyright (c) 1989- by SONY Corporation.
 */
/*
 *      dmac_0448.h
 *              DMAC L7A0448
 */

/*      dmac register base address      */
#define DMAC_BASE               0xbfe00000

/*      register definition     */
#define DMAC_GSTAT              (DMAC_BASE + 0xf)
#define DMAC_GSEL               (DMAC_BASE + 0xe)

#define DMAC_CSTAT              (DMAC_BASE + 0x2)
#define DMAC_CCTL               (DMAC_BASE + 0x3)
#define DMAC_CTRCL              (DMAC_BASE + 0x4)
#define DMAC_CTRCM              (DMAC_BASE + 0x5)
#define DMAC_CTRCH              (DMAC_BASE + 0x6)
#define DMAC_CTAG               (DMAC_BASE + 0x7)
#define DMAC_CWID               (DMAC_BASE + 0x8)
#define DMAC_COFSL              (DMAC_BASE + 0x9)
#define DMAC_COFSH              (DMAC_BASE + 0xa)
#define DMAC_CMAP               (DMAC_BASE + 0xc)
#define DMAC_CMAPH              (DMAC_BASE + 0xc)
#define DMAC_CMAPL              (DMAC_BASE + 0xd)

#ifdef mips
#define VOLATILE        volatile
#else
#define VOLATILE
#endif

#ifndef U_CHAR
#define U_CHAR  unsigned VOLATILE char
#endif

#ifndef U_SHORT
#define U_SHORT unsigned VOLATILE short
#endif

#define dmac_gstat              *(U_CHAR *)DMAC_GSTAT
#define dmac_gsel               *(U_CHAR *)DMAC_GSEL

#define dmac_cstat              *(U_CHAR *)DMAC_CSTAT
#define dmac_cctl               *(U_CHAR *)DMAC_CCTL
#define dmac_ctrcl              *(U_CHAR *)DMAC_CTRCL
#define dmac_ctrcm              *(U_CHAR *)DMAC_CTRCM
#define dmac_ctrch              *(U_CHAR *)DMAC_CTRCH
#define dmac_ctag               *(U_CHAR *)DMAC_CTAG
#define dmac_cwid               *(U_CHAR *)DMAC_CWID
#define dmac_cofsl              *(U_CHAR *)DMAC_COFSL
#define dmac_cofsh              *(U_CHAR *)DMAC_COFSH
#define dmac_cmap               *(U_SHORT *)DMAC_CMAP
#define dmac_cmaph              *(U_CHAR *)DMAC_CMAPH
#define dmac_cmapl              *(U_CHAR *)DMAC_CMAPL

/*      status/control bit definition   */
#define DM_TCZ                  0x80
#define DM_A28                  0x40
#define DM_AFIX                 0x20
#define DM_APAD                 0x10
#define DM_ZINTEN               0x8
#define DM_RST                  0x4
#define DM_MODE                 0x2
#define DM_ENABLE               1

/*      general status bit definition   */
#define CH_INT(x)               (u_char)(1 << (2 * x))
#define CH0_INT                 1
#define CH1_INT                 4
#define CH2_INT                 0x10
#define CH3_INT                 0x40

#define CH_MRQ(x)               (u_char)(1 << (2 * x + 1))
#define CH0_MRQ                 2
#define CH1_MRQ                 8
#define CH2_MRQ                 0x20
#define CH3_MRQ                 0x80

/*      channel definition      */
#define CH_SCSI                 0
#define CH_FDC                  1
#define CH_AUDIO                2
#define CH_VIDEO                3

/*      dma status              */

        struct  dm_stat {
                unsigned int dm_gstat;
                unsigned int dm_cstat;
                unsigned int dm_cctl;
                unsigned int dm_tcnt;
                unsigned int dm_offset;
                unsigned int dm_tag;
                unsigned int dm_width;
        } ;

#define DMAC_WAIT       nops(10)

#define PINTEN          0xbfc80001
# define        DMA_INTEN       0x10
#define PINTSTAT        0xbfc80003