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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/sound/emu8000.h
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Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'include/sound/emu8000.h')
-rw-r--r--include/sound/emu8000.h120
1 files changed, 120 insertions, 0 deletions
diff --git a/include/sound/emu8000.h b/include/sound/emu8000.h
new file mode 100644
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--- /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 */