1 files changed, 120 insertions, 0 deletions

diff --git a/include/sound/emu8000.h b/include/sound/emu8000.h
new file mode 100644
index 000000000000..4362c54e09d0
--- /dev/null
+++ b/include/sound/emu8000.h
@@ -0,0 +1,120 @@
+#ifndef __SOUND_EMU8000_H
+#define __SOUND_EMU8000_H
+/*
+ *  Defines for the emu8000 (AWE32/64)
+ *
+ *  Copyright (C) 1999 Steve Ratcliffe
+ *  Copyright (C) 1999-2000 Takashi Iwai <tiwai@suse.de>
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ */
+
+#include "emux_synth.h"
+#include "seq_kernel.h"
+
+/*
+ * Hardware parameters.
+ */
+#define EMU8000_MAX_DRAM (28 * 1024 * 1024) /* Max on-board mem is 28Mb ???*/
+#define EMU8000_DRAM_OFFSET 0x200000    /* Beginning of on board ram */
+#define EMU8000_CHANNELS   32   /* Number of hardware channels */
+#define EMU8000_DRAM_VOICES     30      /* number of normal voices */
+
+/* Flags to set a dma channel to read or write */
+#define EMU8000_RAM_READ   0
+#define EMU8000_RAM_WRITE  1
+#define EMU8000_RAM_CLOSE  2
+#define EMU8000_RAM_MODE_MASK   0x03
+#define EMU8000_RAM_RIGHT       0x10    /* use 'right' DMA channel */
+
+enum {
+        EMU8000_CONTROL_BASS = 0,
+        EMU8000_CONTROL_TREBLE,
+        EMU8000_CONTROL_CHORUS_MODE,
+        EMU8000_CONTROL_REVERB_MODE,
+        EMU8000_CONTROL_FM_CHORUS_DEPTH,
+        EMU8000_CONTROL_FM_REVERB_DEPTH,
+        EMU8000_NUM_CONTROLS,
+};
+
+/*
+ * Structure to hold all state information for the emu8000 driver.
+ *
+ * Note 1: The chip supports 32 channels in hardware this is max_channels
+ * some of the channels may be used for other things so max_channels is
+ * the number in use for wave voices.
+ */
+typedef struct snd_emu8000 {
+
+        snd_emux_t *emu;
+
+        int index;              /* sequencer client index */
+        int seq_ports;          /* number of sequencer ports */
+        int fm_chorus_depth;    /* FM OPL3 chorus depth */
+        int fm_reverb_depth;    /* FM OPL3 reverb depth */
+
+        int mem_size;           /* memory size */
+        unsigned long port1;    /* Port usually base+0 */
+        unsigned long port2;    /* Port usually at base+0x400 */
+        unsigned long port3;    /* Port usually at base+0x800 */
+        struct resource *res_port1;
+        struct resource *res_port2;
+        struct resource *res_port3;
+        unsigned short last_reg;/* Last register command */
+        spinlock_t reg_lock;
+
+        int dram_checked;
+
+        snd_card_t *card;               /* The card that this belongs to */
+
+        int chorus_mode;
+        int reverb_mode;
+        int bass_level;
+        int treble_level;
+
+        snd_util_memhdr_t *memhdr;
+
+        spinlock_t control_lock;
+        snd_kcontrol_t *controls[EMU8000_NUM_CONTROLS];
+
+        snd_pcm_t *pcm; /* pcm on emu8000 wavetable */
+
+} emu8000_t;
+
+/* sequencer device id */
+#define SNDRV_SEQ_DEV_ID_EMU8000        "emu8000-synth"
+
+
+/* exported functions */
+int snd_emu8000_new(snd_card_t *card, int device, long port, int seq_ports, snd_seq_device_t **ret);
+void snd_emu8000_poke(emu8000_t *emu, unsigned int port, unsigned int reg,
+                      unsigned int val);
+unsigned short snd_emu8000_peek(emu8000_t *emu, unsigned int port,
+                                unsigned int reg);
+void snd_emu8000_poke_dw(emu8000_t *emu, unsigned int port, unsigned int reg,
+                         unsigned int val);
+unsigned int snd_emu8000_peek_dw(emu8000_t *emu, unsigned int port,
+                                 unsigned int reg);
+void snd_emu8000_dma_chan(emu8000_t *emu, int ch, int mode);
+
+void snd_emu8000_init_fm(emu8000_t *emu);
+
+void snd_emu8000_update_chorus_mode(emu8000_t *emu);
+void snd_emu8000_update_reverb_mode(emu8000_t *emu);
+void snd_emu8000_update_equalizer(emu8000_t *emu);
+int snd_emu8000_load_chorus_fx(emu8000_t *emu, int mode, const void __user *buf, long len);
+int snd_emu8000_load_reverb_fx(emu8000_t *emu, int mode, const void __user *buf, long len);
+
+#endif /* __SOUND_EMU8000_H */