sys/arch/dreamcast/dev/g2/aicavar.h

   1 /*      $NetBSD: aicavar.h,v 1.1.4.4 2005/01/17 19:29:13 skrll Exp $    */
   2
   3 /*
   4  * Copyright (c) 2003 SHIMIZU Ryo <ryo@misakimix.org>
   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  *
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  * 3. The name of the author may not be used to endorse or promote products
  17  *    derived from this software without specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  20  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  21  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  22  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  23  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  24  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  29  */
  30
  31 #ifndef _AICAVAR_H_
  32 #define _AICAVAR_H_
  33
  34 typedef struct {
  35         uint32_t serial;
  36         uint32_t command;
  37         uint32_t blocksize;
  38         uint32_t channel;
  39         uint32_t rate;
  40         uint32_t precision;
  41         uint32_t l_param;       /* volume,etc... for left */
  42         uint32_t r_param;       /* volume,etc... for right */
  43 } aica_cmd_t;
  44
  45 #define AICA_COMMAND_NOP        0
  46 #define AICA_COMMAND_PLAY       1
  47 #define AICA_COMMAND_STOP       2
  48 #define AICA_COMMAND_INIT       3
  49 #define AICA_COMMAND_MVOL       4
  50 #define AICA_COMMAND_VOL        5
  51
  52 #define AICA_ARM_CODE           0x00000000      /* text+data+bss+stack
  53                                                    0x00000000-0x0000ff00 */
  54 #define AICA_ARM_CMD            0x0000ff00      /* SH4<->ARM work for
  55                                                    communication */
  56 #define AICA_ARM_CMDADDR(x)     (AICA_ARM_CMD + offsetof(aica_cmd_t, x))
  57 #define AICA_ARM_CMD_SERIAL     AICA_ARM_CMDADDR(serial)
  58 #define AICA_ARM_CMD_COMMAND    AICA_ARM_CMDADDR(command)
  59 #define AICA_ARM_CMD_BLOCKSIZE  AICA_ARM_CMDADDR(blocksize)
  60 #define AICA_ARM_CMD_CHANNEL    AICA_ARM_CMDADDR(channel)
  61 #define AICA_ARM_CMD_RATE       AICA_ARM_CMDADDR(rate)
  62 #define AICA_ARM_CMD_PRECISION  AICA_ARM_CMDADDR(precision)
  63 #define AICA_ARM_CMD_LPARAM     AICA_ARM_CMDADDR(l_param)
  64 #define AICA_ARM_CMD_RPARAM     AICA_ARM_CMDADDR(r_param)
  65
  66 #define AICA_ARM_END            0x00010000
  67
  68 #define AICA_DMABUF_START       0x00010000
  69 #define AICA_DMABUF_LEFT        0x00010000      /* DMA buffer for PLAY
  70                                                    0x00010000-0x0001FFFF */
  71 #define AICA_DMABUF_RIGHT       0x00020000      /* DMA buffer for PLAY
  72                                                    0x00020000-0x0002FFFF */
  73 #define AICA_DMABUF_MONO        AICA_DMABUF_LEFT
  74 #define AICA_DMABUF_END         0x00030000
  75
  76 #define AICA_DMABUF_SIZE        0x0000ffc0
  77
  78 #define AICA_MEMORY_END         0x00200000
  79
  80
  81 #define L256TO16(l)     (((l) >> 4) & 0x0f)
  82 #define L16TO256(l)     ((((l) << 4) & 0xf0) + ((l) & 0x0f))
  83
  84
  85 enum MIXER_CLASS {
  86         AICA_MASTER_VOL = 0,
  87         AICA_OUTPUT_GAIN,
  88         AICA_OUTPUT_CLASS,
  89
  90         AICA_NDEVS
  91 };
  92
  93 #endif /* _AICAVAR_H_ */
  94