--- /dev/null
+#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)
+
+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 */
+
+ struct soundfont_voice_info 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 */
+};
+
+struct snd_sf_sample {
+ struct soundfont_sample_info v;
+ int counter;
+ struct snd_util_memblk *block; /* allocated data block */
+ struct snd_sf_sample *next;
+};
+
+/*
+ * This represents all the information relating to a soundfont.
+ */
+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 */
+ struct snd_sf_zone *zones; /* Font information */
+ struct snd_sf_sample *samples; /* The sample headers */
+};
+
+/*
+ * Type of the sample access callback
+ */
+struct snd_sf_callback {
+ void *private_data;
+ int (*sample_new)(void *private_data, struct snd_sf_sample *sp,
+ struct snd_util_memhdr *hdr,
+ const void __user *buf, long count);
+ int (*sample_free)(void *private_data, struct snd_sf_sample *sp,
+ struct snd_util_memhdr *hdr);
+ void (*sample_reset)(void *private);
+};
+
+/*
+ * List of soundfonts.
+ */
+struct snd_sf_list {
+ struct snd_soundfont *currsf; /* The currently open soundfont */
+ int open_client; /* client pointer for lock */
+ int mem_used; /* used memory size */
+ struct snd_sf_zone *presets[SF_MAX_PRESETS];
+ struct snd_soundfont *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 */
+ struct snd_sf_callback callback; /* callback functions */
+ int presets_locked;
+ struct mutex presets_mutex;
+ spinlock_t lock;
+ struct snd_util_memhdr *memhdr;
+};
+
+/* Prototypes for soundfont.c */
+int snd_soundfont_load(struct snd_sf_list *sflist, const void __user *data,
+ long count, int client);
+int snd_soundfont_load_guspatch(struct snd_sf_list *sflist, const char __user *data,
+ long count, int client);
+int snd_soundfont_close_check(struct snd_sf_list *sflist, int client);
+
+struct snd_sf_list *snd_sf_new(struct snd_sf_callback *callback,
+ struct snd_util_memhdr *hdr);
+void snd_sf_free(struct snd_sf_list *sflist);
+
+int snd_soundfont_remove_samples(struct snd_sf_list *sflist);
+int snd_soundfont_remove_unlocked(struct snd_sf_list *sflist);
+
+int snd_soundfont_search_zone(struct snd_sf_list *sflist, int *notep, int vel,
+ int preset, int bank,
+ int def_preset, int def_bank,
+ struct snd_sf_zone **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 */
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