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Annotation of sys/dev/sbus/cs4231var.h, Revision 1.1

1.1     ! nbrk        1: /*     $OpenBSD: cs4231var.h,v 1.9 2006/06/02 20:00:56 miod Exp $      */
        !             2:
        !             3: /*
        !             4:  * Copyright (c) 1999 Jason L. Wright (jason@thought.net)
        !             5:  * All rights reserved.
        !             6:  *
        !             7:  * Redistribution and use in source and binary forms, with or without
        !             8:  * modification, are permitted provided that the following conditions
        !             9:  * are met:
        !            10:  * 1. Redistributions of source code must retain the above copyright
        !            11:  *    notice, this list of conditions and the following disclaimer.
        !            12:  * 2. Redistributions in binary form must reproduce the above copyright
        !            13:  *    notice, this list of conditions and the following disclaimer in the
        !            14:  *    documentation and/or other materials provided with the distribution.
        !            15:  *
        !            16:  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
        !            17:  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
        !            18:  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
        !            19:  * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
        !            20:  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
        !            21:  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
        !            22:  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            23:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
        !            24:  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
        !            25:  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
        !            26:  * POSSIBILITY OF SUCH DAMAGE.
        !            27:  *
        !            28:  * Effort sponsored in part by the Defense Advanced Research Projects
        !            29:  * Agency (DARPA) and Air Force Research Laboratory, Air Force
        !            30:  * Materiel Command, USAF, under agreement number F30602-01-2-0537.
        !            31:  *
        !            32:  */
        !            33:
        !            34: /*
        !            35:  * Driver for CS4231 based audio found in some sun4m systems
        !            36:  */
        !            37:
        !            38: /*
        !            39:  * List of device memory allocations (see cs4231_malloc/cs4231_free).
        !            40:  */
        !            41: struct cs_dma {
        !            42:        struct cs_dma *         next;
        !            43:        caddr_t                 addr;
        !            44:        bus_dmamap_t            dmamap;
        !            45:        bus_dma_segment_t       segs[1];
        !            46:        int                     nsegs;
        !            47:        size_t                  size;
        !            48: };
        !            49:
        !            50: struct cs_volume {
        !            51:        u_int8_t        left;
        !            52:        u_int8_t        right;
        !            53: };
        !            54:
        !            55: struct cs_channel {
        !            56:        void            (*cs_intr)(void *);     /* interrupt handler */
        !            57:        void            *cs_arg;                /* interrupt arg */
        !            58:        struct cs_dma   *cs_curdma;             /* current dma block */
        !            59:        u_int32_t       cs_cnt;                 /* current block count */
        !            60:        u_int32_t       cs_blksz;               /* current block size */
        !            61:        u_int32_t       cs_segsz;               /* current segment size */
        !            62:        int             cs_locked;              /* channel locked? */
        !            63: };
        !            64:
        !            65: struct cs4231_softc {
        !            66:        struct  device sc_dev;          /* base device */
        !            67:        struct  intrhand sc_ih;         /* interrupt vectoring */
        !            68:        bus_dma_tag_t sc_dmatag;
        !            69:        bus_space_tag_t sc_bustag;      /* CS4231/APC register tag */
        !            70:        bus_space_handle_t sc_regs;     /* CS4231/APC register handle */
        !            71:        int     sc_burst;               /* XXX: DMA burst size in effect */
        !            72:        int     sc_open;                /* already open? */
        !            73:
        !            74:        struct cs_channel sc_playback, sc_capture;
        !            75:
        !            76:        char            sc_mute[9];     /* which devs are muted */
        !            77:        u_int8_t        sc_out_port;    /* output port */
        !            78:        u_int8_t        sc_in_port;     /* input port */
        !            79:        struct  cs_volume sc_volume[9]; /* software volume */
        !            80:        struct  cs_volume sc_adc;       /* adc volume */
        !            81:
        !            82:        int sc_format_bits;
        !            83:        int sc_speed_bits;
        !            84:        int sc_precision;
        !            85:        int sc_need_commit;
        !            86:        int sc_channels;
        !            87:        struct cs_dma   *sc_dmas;       /* dma list */
        !            88: };