FreeBSD/Linux Kernel Cross Reference
sys/dev/ic/cs4231var.h

     /*      $NetBSD: cs4231var.h,v 1.8 2008/04/28 20:23:49 martin Exp $     */
     
     /*-
      * Copyright (c) 1998, 1999 The NetBSD Foundation, Inc.
      * All rights reserved.
      *
      * This code is derived from software contributed to The NetBSD Foundation
      * by Paul Kranenburg.
      *
     * 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.
     */
    
    #ifndef _DEV_IC_CS4231VAR_H_
    #define _DEV_IC_CS4231VAR_H_
    
    #define AUDIOCS_PROM_NAME       "SUNW,CS4231"
    
    /*
     * List of device memory allocations (see cs4231_malloc/cs4231_free).
     */
    struct cs_dma {
            struct  cs_dma  *next;
            void *          addr;
            bus_dmamap_t    dmamap;
            bus_dma_segment_t segs[1];
            int             nsegs;
            size_t          size;
    };
    
    
    /*
     * DMA transfer to/from CS4231.
     */
    struct cs_transfer {
            int t_active;           /* this transfer is currently active */
            struct cs_dma *t_dma;   /* dma memory to transfer from/to */
            vsize_t t_segsz;        /* size of the segment */
            vsize_t t_blksz;        /* call audio(9) after this many bytes */
            vsize_t t_cnt;          /* how far are we into the segment */
    
            void (*t_intr)(void*);  /* audio(9) callback */
            void *t_arg;
    
            const char *t_name;     /* for error/debug messages */
    
            struct evcnt t_intrcnt;
            struct evcnt t_ierrcnt;
    };
    
    
    /*
     * Software state, per CS4231 audio chip.
     */
    struct cs4231_softc {
            struct ad1848_softc sc_ad1848;  /* base device */
    
            bus_space_tag_t sc_bustag;
            bus_dma_tag_t sc_dmatag;
    
            struct cs_dma *sc_dmas;         /* allocated dma resources */
    
            struct evcnt sc_intrcnt;        /* parent counter */
    
            struct cs_transfer sc_playback;
            struct cs_transfer sc_capture;
    };
    
    
    /*
     * Bus independent code shared by sbus and ebus attachments.
     */
    void    cs4231_common_attach(struct cs4231_softc *, bus_space_handle_t);
    int     cs4231_transfer_init(struct cs4231_softc *, struct cs_transfer *,
                                 bus_addr_t *, bus_size_t *,
                                 void *, void *, int, void (*)(void *), void *);
    void    cs4231_transfer_advance(struct cs_transfer *,
                                    bus_addr_t *, bus_size_t *);
    
    
    /*
    * Bus independent audio(9) methods.
    */
   int     cs4231_open(void *, int);
   void    cs4231_close(void *);
   int     cs4231_getdev(void *, struct audio_device *);
   int     cs4231_set_port(void *, mixer_ctrl_t *);
   int     cs4231_get_port(void *, mixer_ctrl_t *);
   int     cs4231_query_devinfo(void *, mixer_devinfo_t *);
   int     cs4231_get_props(void *);
   
   void    *cs4231_malloc(void *, int, size_t, struct malloc_type *, int);
   void    cs4231_free(void *, void *, struct malloc_type *);
   
   #endif /* _DEV_IC_CS4231VAR_H_ */

Cache object: 0d42a805e41d6e42e232412d52bb3fd3