FreeBSD/Linux Kernel Cross Reference
sys/dev/ic/tms320av110var.h

     /*      $NetBSD: tms320av110var.h,v 1.10 2008/04/28 20:23:51 martin Exp $       */
     
     /*-
      * Copyright (c) 1997 The NetBSD Foundation, Inc.
      * All rights reserved.
      *
      * This code is derived from software contributed to The NetBSD Foundation
      * by Ignatios Souvatzis.
      *
     * Redistribution and use in source and binary forms, with or without
     * modification, are permitted provided that the following conditions
     * are met:
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     *
     * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     * POSSIBILITY OF SUCH DAMAGE.
     */
    
    /*
     * Machine independent definitions, declarations and data structures for
     * access to the TMS320AV110 data sheet.
     *
     * Currently, only minimum support for audio output. For audio/video
     * synchronization, more is needed.
     */
    
    #ifndef _TMS320AV110_VAR_H_
    #define _TMS320AV110_VAR_H_
    
    #include <sys/bus.h>
    
    /* softc */
    
    struct tav_softc {
            struct device   sc_dev;
    
            bus_space_tag_t sc_iot;
            bus_space_handle_t sc_ioh;
    
            /* above audio callback function */
            void            (*sc_intr)(void *);
            void            *sc_intrarg;
            int             sc_bsize;
    
            /* below audio interrupt acknowledge function. Ignored if NULL */
            void            (*sc_intack)(struct tav_softc *);
    
            /* initialization from below */
    
            uint8_t         sc_pcm_div;     /* passed in */
            uint8_t         sc_pcm_ord;     /* passed in */
            uint8_t         sc_pcm_18;      /* passed in */
            uint8_t         sc_dif; /* passed in */
    };
    
    /* prototypes */
    
    void tms320av110_attach_mi(struct tav_softc *);
    int tms320av110_intr(void *);
    
    static void tav_write_short(bus_space_tag_t, bus_space_handle_t,
        bus_size_t, uint16_t);
    
    /* access functions/macros: */
    /* XXX shouldn't these be in the reg.h file? */
    
    #define tav_read_byte(ioh, iot, off) bus_space_read_1(ioh, iot, off)
    
    #define tav_read_short(ioh, iot, off)   (               \
            bus_space_read_1((ioh), (iot), (off))   |       \
            bus_space_read_1((ioh), (iot), (off)+1) << 8)
    
    #define tav_read_long(ioh, iot, off)    (               \
            bus_space_read_1((ioh), (iot), (off))   |       \
            bus_space_read_1((ioh), (iot), (off)+1) << 8 |  \
            bus_space_read_1((ioh), (iot), (off)+2) << 16 | \
            bus_space_read_1((ioh), (iot), (off)+3))
    
    #define tav_read_time(ioh, iot, off)    (               \
            bus_space_read_1((ioh), (iot), (off))   |       \
            bus_space_read_1((ioh), (iot), (off)+1) << 8 |  \
            bus_space_read_1((ioh), (iot), (off)+2) << 16 | \
            bus_space_read_1((ioh), (iot), (off)+3) << 24 | \
            bus_space_read_1((ioh), (iot), (off)+4) << 32)
    
    #define tav_write_byte(ioh, iot, off, v) bus_space_write_1(ioh, iot, off, v)
   
   static __inline void
   tav_write_short(bus_space_tag_t iot, bus_space_handle_t ioh,
       bus_size_t off, uint16_t val)
   {
   
           bus_space_write_1(iot, ioh, off+1, (val)>>8);
           bus_space_write_1(iot, ioh, off,  (uint8_t)val);
   }
   
   #endif /* _TMS320AV110_VAR_H_ */

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