diff --git a/include/sound/soundfont.h b/include/sound/soundfont.h
new file mode 100644
index 0000000..c992958
--- /dev/null
+++ b/include/sound/soundfont.h
@@ -0,0 +1,130 @@
+#ifndef __SOUND_SOUNDFONT_H
+#define __SOUND_SOUNDFONT_H
+
+/*
+ *  Soundfont defines and definitions.
+ *
+ *  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 "sfnt_info.h"
+#include "util_mem.h"
+
+#define SF_MAX_INSTRUMENTS	128	/* maximum instrument number */
+#define SF_MAX_PRESETS  256	/* drums are mapped from 128 to 256 */
+#define SF_IS_DRUM_BANK(z) ((z) == 128)
+
+typedef struct snd_sf_zone {
+	struct snd_sf_zone *next;	/* Link to next */
+	unsigned char bank;		/* Midi bank for this zone */
+	unsigned char instr;		/* Midi program for this zone */
+	unsigned char mapped;		/* True if mapped to something else */
+
+	soundfont_voice_info_t v;	/* All the soundfont parameters */
+	int counter;
+	struct snd_sf_sample *sample;	/* Link to sample */
+
+	/* The following deals with preset numbers (programs) */
+	struct snd_sf_zone *next_instr;	/* Next zone of this instrument */
+	struct snd_sf_zone *next_zone;	/* Next zone in play list */
+} snd_sf_zone_t;
+
+typedef struct snd_sf_sample {
+	soundfont_sample_info_t v;
+	int counter;
+	snd_util_memblk_t *block;	/* allocated data block */
+	struct snd_sf_sample *next;
+} snd_sf_sample_t;
+
+/*
+ * This represents all the information relating to a soundfont.
+ */
+typedef struct snd_soundfont {
+	struct snd_soundfont *next;	/* Link to next */
+	/*struct snd_soundfont *prev;*/	/* Link to previous */
+	short  id;		/* file id */
+	short  type;		/* font type */
+	unsigned char name[SNDRV_SFNT_PATCH_NAME_LEN];	/* identifier */
+	snd_sf_zone_t *zones; /* Font information */
+	snd_sf_sample_t *samples; /* The sample headers */
+} snd_soundfont_t;
+
+/*
+ * Type of the sample access callback
+ */
+typedef int (*snd_sf_sample_new_t)(void *private_data, snd_sf_sample_t *sp,
+				   snd_util_memhdr_t *hdr, const void __user *buf, long count);
+typedef int (*snd_sf_sample_free_t)(void *private_data, snd_sf_sample_t *sp,
+				    snd_util_memhdr_t *hdr);
+typedef void (*snd_sf_sample_reset_t)(void *private);
+
+typedef struct snd_sf_callback {
+	void *private_data;
+	snd_sf_sample_new_t sample_new;
+	snd_sf_sample_free_t sample_free;
+	snd_sf_sample_reset_t sample_reset;
+} snd_sf_callback_t;
+
+/*
+ * List of soundfonts.
+ */
+typedef struct snd_sf_list {
+	snd_soundfont_t *currsf; /* The currently open soundfont */
+	int open_client;	/* client pointer for lock */
+	int mem_used;		/* used memory size */
+	snd_sf_zone_t *presets[SF_MAX_PRESETS];
+	snd_soundfont_t *fonts; /* The list of soundfonts */
+	int fonts_size;	/* number of fonts allocated */
+	int zone_counter;	/* last allocated time for zone */
+	int sample_counter;	/* last allocated time for sample */
+	int zone_locked;	/* locked time for zone */
+	int sample_locked;	/* locked time for sample */
+	snd_sf_callback_t callback;	/* callback functions */
+	int presets_locked;
+	struct semaphore presets_mutex;
+	spinlock_t lock;
+	snd_util_memhdr_t *memhdr;
+} snd_sf_list_t;
+
+/* Prototypes for soundfont.c */
+int snd_soundfont_load(snd_sf_list_t *sflist, const void __user *data, long count, int client);
+int snd_soundfont_load_guspatch(snd_sf_list_t *sflist, const char __user *data,
+				long count, int client);
+int snd_soundfont_close_check(snd_sf_list_t *sflist, int client);
+
+snd_sf_list_t *snd_sf_new(snd_sf_callback_t *callback, snd_util_memhdr_t *hdr);
+void snd_sf_free(snd_sf_list_t *sflist);
+
+int snd_soundfont_remove_samples(snd_sf_list_t *sflist);
+int snd_soundfont_remove_unlocked(snd_sf_list_t *sflist);
+
+int snd_soundfont_search_zone(snd_sf_list_t *sflist, int *notep, int vel,
+			      int preset, int bank,
+			      int def_preset, int def_bank,
+			      snd_sf_zone_t **table, int max_layers);
+
+/* Parameter conversions */
+int snd_sf_calc_parm_hold(int msec);
+int snd_sf_calc_parm_attack(int msec);
+int snd_sf_calc_parm_decay(int msec);
+#define snd_sf_calc_parm_delay(msec) (0x8000 - (msec) * 1000 / 725);
+extern int snd_sf_vol_table[128];
+int snd_sf_linear_to_log(unsigned int amount, int offset, int ratio);
+
+
+#endif /* __SOUND_SOUNDFONT_H */