release/src-rt-6.x.4708/linux/linux-2.6.36/include/sound/emu8000.h

   1 #ifndef __SOUND_EMU8000_H
   2 #define __SOUND_EMU8000_H
   3 /*
   4  *  Defines for the emu8000 (AWE32/64)
   5  *
   6  *  Copyright (C) 1999 Steve Ratcliffe
   7  *  Copyright (C) 1999-2000 Takashi Iwai <tiwai@suse.de>
   8  *
   9  *   This program is free software; you can redistribute it and/or modify
  10  *   it under the terms of the GNU General Public License as published by
  11  *   the Free Software Foundation; either version 2 of the License, or
  12  *   (at your option) any later version.
  13  *
  14  *   This program is distributed in the hope that it will be useful,
  15  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  *   GNU General Public License for more details.
  18  *
  19  *   You should have received a copy of the GNU General Public License
  20  *   along with this program; if not, write to the Free Software
  21  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  22  */
  23
  24 #include "emux_synth.h"
  25 #include "seq_kernel.h"
  26
  27 /*
  28  * Hardware parameters.
  29  */
  30 #define EMU8000_MAX_DRAM (28 * 1024 * 1024) /* Max on-board mem is 28Mb ???*/
  31 #define EMU8000_DRAM_OFFSET 0x200000    /* Beginning of on board ram */
  32 #define EMU8000_CHANNELS   32   /* Number of hardware channels */
  33 #define EMU8000_DRAM_VOICES     30      /* number of normal voices */
  34
  35 /* Flags to set a dma channel to read or write */
  36 #define EMU8000_RAM_READ   0
  37 #define EMU8000_RAM_WRITE  1
  38 #define EMU8000_RAM_CLOSE  2
  39 #define EMU8000_RAM_MODE_MASK   0x03
  40 #define EMU8000_RAM_RIGHT       0x10    /* use 'right' DMA channel */
  41
  42 enum {
  43         EMU8000_CONTROL_BASS = 0,
  44         EMU8000_CONTROL_TREBLE,
  45         EMU8000_CONTROL_CHORUS_MODE,
  46         EMU8000_CONTROL_REVERB_MODE,
  47         EMU8000_CONTROL_FM_CHORUS_DEPTH,
  48         EMU8000_CONTROL_FM_REVERB_DEPTH,
  49         EMU8000_NUM_CONTROLS,
  50 };
  51
  52 /*
  53  * Structure to hold all state information for the emu8000 driver.
  54  *
  55  * Note 1: The chip supports 32 channels in hardware this is max_channels
  56  * some of the channels may be used for other things so max_channels is
  57  * the number in use for wave voices.
  58  */
  59 struct snd_emu8000 {
  60
  61         struct snd_emux *emu;
  62
  63         int index;              /* sequencer client index */
  64         int seq_ports;          /* number of sequencer ports */
  65         int fm_chorus_depth;    /* FM OPL3 chorus depth */
  66         int fm_reverb_depth;    /* FM OPL3 reverb depth */
  67
  68         int mem_size;           /* memory size */
  69         unsigned long port1;    /* Port usually base+0 */
  70         unsigned long port2;    /* Port usually at base+0x400 */
  71         unsigned long port3;    /* Port usually at base+0x800 */
  72         struct resource *res_port1;
  73         struct resource *res_port2;
  74         struct resource *res_port3;
  75         unsigned short last_reg;/* Last register command */
  76         spinlock_t reg_lock;
  77
  78         int dram_checked;
  79
  80         struct snd_card *card;          /* The card that this belongs to */
  81
  82         int chorus_mode;
  83         int reverb_mode;
  84         int bass_level;
  85         int treble_level;
  86
  87         struct snd_util_memhdr *memhdr;
  88
  89         spinlock_t control_lock;
  90         struct snd_kcontrol *controls[EMU8000_NUM_CONTROLS];
  91
  92         struct snd_pcm *pcm; /* pcm on emu8000 wavetable */
  93
  94 };
  95
  96 /* sequencer device id */
  97 #define SNDRV_SEQ_DEV_ID_EMU8000        "emu8000-synth"
  98
  99
 100 /* exported functions */
 101 int snd_emu8000_new(struct snd_card *card, int device, long port, int seq_ports,
 102                     struct snd_seq_device **ret);
 103 void snd_emu8000_poke(struct snd_emu8000 *emu, unsigned int port, unsigned int reg,
 104                       unsigned int val);
 105 unsigned short snd_emu8000_peek(struct snd_emu8000 *emu, unsigned int port,
 106                                 unsigned int reg);
 107 void snd_emu8000_poke_dw(struct snd_emu8000 *emu, unsigned int port, unsigned int reg,
 108                          unsigned int val);
 109 unsigned int snd_emu8000_peek_dw(struct snd_emu8000 *emu, unsigned int port,
 110                                  unsigned int reg);
 111 void snd_emu8000_dma_chan(struct snd_emu8000 *emu, int ch, int mode);
 112
 113 void snd_emu8000_init_fm(struct snd_emu8000 *emu);
 114
 115 void snd_emu8000_update_chorus_mode(struct snd_emu8000 *emu);
 116 void snd_emu8000_update_reverb_mode(struct snd_emu8000 *emu);
 117 void snd_emu8000_update_equalizer(struct snd_emu8000 *emu);
 118 int snd_emu8000_load_chorus_fx(struct snd_emu8000 *emu, int mode, const void __user *buf, long len);
 119 int snd_emu8000_load_reverb_fx(struct snd_emu8000 *emu, int mode, const void __user *buf, long len);
 120
 121 #endif /* __SOUND_EMU8000_H */