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Annotation of sys/dev/pci/esavar.h, Revision 1.1

1.1     ! nbrk        1: /* $OpenBSD: esavar.h,v 1.1 2002/04/08 01:47:33 frantzen Exp $ */
        !             2: /* $NetBSD: esavar.h,v 1.4 2002/03/16 14:34:01 jmcneill Exp $ */
        !             3:
        !             4: /*
        !             5:  * Copyright (c) 2001, 2002 Jared D. McNeill <jmcneill@invisible.yi.org>
        !             6:  * All rights reserved.
        !             7:  *
        !             8:  * Redistribution and use in source and binary forms, with or without
        !             9:  * modification, are permitted provided that the following conditions
        !            10:  * are met:
        !            11:  * 1. Redistributions of source code must retain the above copyright
        !            12:  *    notice, this list of conditions and the following disclaimer.
        !            13:  * 2. The name of the author may not be used to endorse or promote products
        !            14:  *    derived from this software without specific prior written permission.
        !            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 WARRANTIES
        !            18:  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
        !            19:  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
        !            20:  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
        !            21:  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
        !            22:  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
        !            23:  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
        !            24:  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            25:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            26:  * SUCH DAMAGE.
        !            27:  */
        !            28:
        !            29: /*
        !            30:  * ESS Allegro-1 / Maestro3 Audio Driver
        !            31:  *
        !            32:  * Based on the FreeBSD maestro3 driver
        !            33:  *
        !            34:  */
        !            35:
        !            36: /*
        !            37:  * Number of simultaneous voices
        !            38:  *
        !            39:  * NOTE: The current code attaches audio0 thru audioESA_NUM_VOICES-1
        !            40:  *       to this driver, and a lot of people probably don't want that.
        !            41:  *       So, we'll default to 1 but we'll allow for the possibility of
        !            42:  *       more.
        !            43:  *
        !            44:  * The current MINISRC image limits us to a maximum of 4 simultaneous voices.
        !            45:  */
        !            46: #ifndef ESA_NUM_VOICES
        !            47: #define        ESA_NUM_VOICES          1
        !            48: #endif
        !            49:
        !            50: #define KERNADDR(p)    ((void *)((p)->addr))
        !            51: #define        DMAADDR(p)      ((p)->map->dm_segs[0].ds_addr)
        !            52:
        !            53: #define ESA_MINRATE    8000
        !            54: #define ESA_MAXRATE    48000
        !            55:
        !            56: struct esa_list {
        !            57:        int                     currlen;
        !            58:        int                     mem_addr;
        !            59:        int                     max;
        !            60:        int                     indexmap[ESA_NUM_VOICES * 2];
        !            61: };
        !            62:
        !            63: struct esa_dma {
        !            64:        bus_dmamap_t            map;
        !            65:        caddr_t                 addr;
        !            66:        bus_dma_segment_t       segs[1];
        !            67:        int                     nsegs;
        !            68:        size_t                  size;
        !            69:        struct esa_dma          *next;
        !            70: };
        !            71:
        !            72: struct esa_channel {
        !            73:        int                     active;
        !            74:        int                     data_offset;
        !            75:        int                     index;
        !            76:        size_t                  bufsize;
        !            77:        int                     blksize;
        !            78:        int                     pos;
        !            79:        void                    *buf;
        !            80:        u_int32_t               start;
        !            81:        u_int32_t               count;
        !            82:
        !            83:        /* mode settings */
        !            84:        struct audio_params     mode;
        !            85:
        !            86:        void                    (*intr)(void *);
        !            87:        void                    *arg;
        !            88: };
        !            89:
        !            90: struct esa_voice {
        !            91:        struct device           *parent;        /* pointer to our parent */
        !            92:        struct esa_channel      play;
        !            93:        struct esa_channel      rec;
        !            94:        struct esa_dma          *dma;
        !            95:        int                     inlist;
        !            96:        int                     index;  /* 0: play, 1: record */
        !            97: };
        !            98:
        !            99: struct esa_softc
        !           100: {
        !           101:        struct device           sc_dev;
        !           102:        bus_space_tag_t         sc_iot;
        !           103:        bus_space_handle_t      sc_ioh;
        !           104:        bus_addr_t              sc_iob;
        !           105:        bus_size_t              sc_ios;
        !           106:
        !           107:        pcitag_t                sc_tag;
        !           108:        pci_chipset_tag_t       sc_pct;
        !           109:        bus_dma_tag_t           sc_dmat;
        !           110:        pcireg_t                sc_pcireg;
        !           111:
        !           112:        void                    *sc_ih;
        !           113:
        !           114:        struct ac97_codec_if    *codec_if;
        !           115:        struct ac97_host_if     host_if;
        !           116:        enum ac97_host_flags    codec_flags;
        !           117:
        !           118:        struct device           *sc_audiodev[ESA_NUM_VOICES];
        !           119:
        !           120:        struct esa_voice        voice[ESA_NUM_VOICES];
        !           121:        struct esa_dma          *sc_dmas;
        !           122:        int                     count;
        !           123:
        !           124:        /* timer management */
        !           125:        int                     sc_ntimers;
        !           126:
        !           127:        /* packed list structures */
        !           128:        struct esa_list         mixer_list;
        !           129:        struct esa_list         adc1_list;
        !           130:        struct esa_list         dma_list;
        !           131:        struct esa_list         msrc_list;
        !           132:
        !           133:        int                     type;           /* Allegro-1 or Maestro 3? */
        !           134:        int                     delay1, delay2;
        !           135:
        !           136:        void                    *powerhook;
        !           137:        u_int16_t               *savemem;
        !           138: };