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-rw-r--r--include/sound/emu8000.h108
1 files changed, 108 insertions, 0 deletions
diff --git a/include/sound/emu8000.h b/include/sound/emu8000.h
new file mode 100644
index 000000000..ad0365d6d
--- /dev/null
+++ b/include/sound/emu8000.h
@@ -0,0 +1,108 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+#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>
+ */
+
+#include <sound/emux_synth.h>
+#include <sound/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.
+ */
+struct snd_emu8000 {
+
+ struct snd_emux *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;
+
+ struct snd_card *card; /* The card that this belongs to */
+
+ int chorus_mode;
+ int reverb_mode;
+ int bass_level;
+ int treble_level;
+
+ struct snd_util_memhdr *memhdr;
+
+ spinlock_t control_lock;
+ struct snd_kcontrol *controls[EMU8000_NUM_CONTROLS];
+
+ struct snd_pcm *pcm; /* pcm on emu8000 wavetable */
+
+};
+
+/* sequencer device id */
+#define SNDRV_SEQ_DEV_ID_EMU8000 "emu8000-synth"
+
+
+/* exported functions */
+int snd_emu8000_new(struct snd_card *card, int device, long port, int seq_ports,
+ struct snd_seq_device **ret);
+void snd_emu8000_poke(struct snd_emu8000 *emu, unsigned int port, unsigned int reg,
+ unsigned int val);
+unsigned short snd_emu8000_peek(struct snd_emu8000 *emu, unsigned int port,
+ unsigned int reg);
+void snd_emu8000_poke_dw(struct snd_emu8000 *emu, unsigned int port, unsigned int reg,
+ unsigned int val);
+unsigned int snd_emu8000_peek_dw(struct snd_emu8000 *emu, unsigned int port,
+ unsigned int reg);
+void snd_emu8000_dma_chan(struct snd_emu8000 *emu, int ch, int mode);
+
+void snd_emu8000_init_fm(struct snd_emu8000 *emu);
+
+void snd_emu8000_update_chorus_mode(struct snd_emu8000 *emu);
+void snd_emu8000_update_reverb_mode(struct snd_emu8000 *emu);
+void snd_emu8000_update_equalizer(struct snd_emu8000 *emu);
+int snd_emu8000_load_chorus_fx(struct snd_emu8000 *emu, int mode, const void __user *buf, long len);
+int snd_emu8000_load_reverb_fx(struct snd_emu8000 *emu, int mode, const void __user *buf, long len);
+
+#endif /* __SOUND_EMU8000_H */