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/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */

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#ifndef __SOUND_SFNT_INFO_H

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#define __SOUND_SFNT_INFO_H

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* Patch record compatible with AWE driver on OSS

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#include <sound/asound.h>

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* patch information record

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#ifdef SNDRV_BIG_ENDIAN

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#define SNDRV_OSS_PATCHKEY(id) (0xfd00|id)

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#else

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#define SNDRV_OSS_PATCHKEY(id) ((id<<8)|0xfd)

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#endif

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/* patch interface header: 16 bytes */

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struct soundfont_patch_info {

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unsigned short key; /* use the key below */

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#define SNDRV_OSS_SOUNDFONT_PATCH SNDRV_OSS_PATCHKEY(0x07)

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short device_no; /* synthesizer number */

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unsigned short sf_id; /* file id (should be zero) */

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short optarg; /* optional argument */

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int len; /* data length (without this header) */

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short type; /* patch operation type */

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#define SNDRV_SFNT_LOAD_INFO 0 /* awe_voice_rec */

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#define SNDRV_SFNT_LOAD_DATA 1 /* awe_sample_info */

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#define SNDRV_SFNT_OPEN_PATCH 2 /* awe_open_parm */

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#define SNDRV_SFNT_CLOSE_PATCH 3 /* none */

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/* 4 is obsolete */

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#define SNDRV_SFNT_REPLACE_DATA 5 /* awe_sample_info (optarg=#channels)*/

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#define SNDRV_SFNT_MAP_PRESET 6 /* awe_voice_map */

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/* 7 is not used */

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#define SNDRV_SFNT_PROBE_DATA 8 /* optarg=sample */

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#define SNDRV_SFNT_REMOVE_INFO 9 /* optarg=(bank<<8)|instr */

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short reserved; /* word alignment data */

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/* the actual patch data begins after this */

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};

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* open patch

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#define SNDRV_SFNT_PATCH_NAME_LEN 32

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struct soundfont_open_parm {

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unsigned short type; /* sample type */

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#define SNDRV_SFNT_PAT_TYPE_MISC 0

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#define SNDRV_SFNT_PAT_TYPE_GUS 6

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#define SNDRV_SFNT_PAT_TYPE_MAP 7

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#define SNDRV_SFNT_PAT_LOCKED 0x100 /* lock the samples */

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#define SNDRV_SFNT_PAT_SHARED 0x200 /* sample is shared */

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short reserved;

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char name[SNDRV_SFNT_PATCH_NAME_LEN];

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};

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* raw voice information record

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/* wave table envelope & effect parameters to control EMU8000 */

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struct soundfont_voice_parm {

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unsigned short moddelay; /* modulation delay (0x8000) */

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unsigned short modatkhld; /* modulation attack & hold time (0x7f7f) */

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unsigned short moddcysus; /* modulation decay & sustain (0x7f7f) */

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unsigned short modrelease; /* modulation release time (0x807f) */

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short modkeyhold, modkeydecay; /* envelope change per key (not used) */

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unsigned short voldelay; /* volume delay (0x8000) */

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unsigned short volatkhld; /* volume attack & hold time (0x7f7f) */

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unsigned short voldcysus; /* volume decay & sustain (0x7f7f) */

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unsigned short volrelease; /* volume release time (0x807f) */

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short volkeyhold, volkeydecay; /* envelope change per key (not used) */

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unsigned short lfo1delay; /* LFO1 delay (0x8000) */

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unsigned short lfo2delay; /* LFO2 delay (0x8000) */

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unsigned short pefe; /* modulation pitch & cutoff (0x0000) */

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unsigned short fmmod; /* LFO1 pitch & cutoff (0x0000) */

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unsigned short tremfrq; /* LFO1 volume & freq (0x0000) */

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unsigned short fm2frq2; /* LFO2 pitch & freq (0x0000) */

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unsigned char cutoff; /* initial cutoff (0xff) */

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unsigned char filterQ; /* initial filter Q [0-15] (0x0) */

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unsigned char chorus; /* chorus send (0x00) */

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unsigned char reverb; /* reverb send (0x00) */

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unsigned short reserved[4]; /* not used */

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};

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/* wave table parameters: 92 bytes */

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struct soundfont_voice_info {

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unsigned short sf_id; /* file id (should be zero) */

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unsigned short sample; /* sample id */

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int start, end; /* sample offset correction */

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int loopstart, loopend; /* loop offset correction */

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short rate_offset; /* sample rate pitch offset */

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unsigned short mode; /* sample mode */

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#define SNDRV_SFNT_MODE_ROMSOUND 0x8000

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#define SNDRV_SFNT_MODE_STEREO 1

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#define SNDRV_SFNT_MODE_LOOPING 2

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#define SNDRV_SFNT_MODE_NORELEASE 4 /* obsolete */

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#define SNDRV_SFNT_MODE_INIT_PARM 8

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short root; /* midi root key */

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short tune; /* pitch tuning (in cents) */

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unsigned char low, high; /* key note range */

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unsigned char vellow, velhigh; /* velocity range */

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signed char fixkey, fixvel; /* fixed key, velocity */

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signed char pan, fixpan; /* panning, fixed panning */

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short exclusiveClass; /* exclusive class (0 = none) */

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unsigned char amplitude; /* sample volume (127 max) */

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unsigned char attenuation; /* attenuation (0.375dB) */

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short scaleTuning; /* pitch scale tuning(%), normally 100 */

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struct soundfont_voice_parm parm; /* voice envelope parameters */

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unsigned short sample_mode; /* sample mode_flag (set by driver) */

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};

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/* instrument info header: 4 bytes */

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struct soundfont_voice_rec_hdr {

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unsigned char bank; /* midi bank number */

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unsigned char instr; /* midi preset number */

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char nvoices; /* number of voices */

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char write_mode; /* write mode; normally 0 */

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#define SNDRV_SFNT_WR_APPEND 0 /* append anyway */

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#define SNDRV_SFNT_WR_EXCLUSIVE 1 /* skip if already exists */

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#define SNDRV_SFNT_WR_REPLACE 2 /* replace if already exists */

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};

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* sample wave information

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/* wave table sample header: 32 bytes */

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struct soundfont_sample_info {

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unsigned short sf_id; /* file id (should be zero) */

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unsigned short sample; /* sample id */

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int start, end; /* start & end offset */

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int loopstart, loopend; /* loop start & end offset */

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int size; /* size (0 = ROM) */

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short dummy; /* not used */

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unsigned short mode_flags; /* mode flags */

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#define SNDRV_SFNT_SAMPLE_8BITS 1 /* wave data is 8bits */

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#define SNDRV_SFNT_SAMPLE_UNSIGNED 2 /* wave data is unsigned */

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#define SNDRV_SFNT_SAMPLE_NO_BLANK 4 /* no blank loop is attached */

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#define SNDRV_SFNT_SAMPLE_SINGLESHOT 8 /* single-shot w/o loop */

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#define SNDRV_SFNT_SAMPLE_BIDIR_LOOP 16 /* bidirectional looping */

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#define SNDRV_SFNT_SAMPLE_STEREO_LEFT 32 /* stereo left sound */

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#define SNDRV_SFNT_SAMPLE_STEREO_RIGHT 64 /* stereo right sound */

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#define SNDRV_SFNT_SAMPLE_REVERSE_LOOP 128 /* reverse looping */

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unsigned int truesize; /* used memory size (set by driver) */

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};

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* voice preset mapping (aliasing)

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struct soundfont_voice_map {

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int map_bank, map_instr, map_key; /* key = -1 means all keys */

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int src_bank, src_instr, src_key;

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};

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* ioctls for hwdep

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#define SNDRV_EMUX_HWDEP_NAME "Emux WaveTable"

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#define SNDRV_EMUX_VERSION ((1 << 16) | (0 << 8) | 0) /* 1.0.0 */

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struct snd_emux_misc_mode {

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int port; /* -1 = all */

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int mode;

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int value;

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int value2; /* reserved */

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};

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#define SNDRV_EMUX_IOCTL_VERSION _IOR('H', 0x80, unsigned int)

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#define SNDRV_EMUX_IOCTL_LOAD_PATCH _IOWR('H', 0x81, struct soundfont_patch_info)

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#define SNDRV_EMUX_IOCTL_RESET_SAMPLES _IO('H', 0x82)

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#define SNDRV_EMUX_IOCTL_REMOVE_LAST_SAMPLES _IO('H', 0x83)

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#define SNDRV_EMUX_IOCTL_MEM_AVAIL _IOW('H', 0x84, int)

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#define SNDRV_EMUX_IOCTL_MISC_MODE _IOWR('H', 0x84, struct snd_emux_misc_mode)

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#endif /* __SOUND_SFNT_INFO_H */

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