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Annotation of sys/dev/sbus/cs4231var.h, Revision 1.1.1.1

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: };