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1a59d1b8 | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
1da177e4 LT |
2 | #ifndef __SOUND_SOUNDFONT_H |
3 | #define __SOUND_SOUNDFONT_H | |
4 | ||
5 | /* | |
6 | * Soundfont defines and definitions. | |
7 | * | |
8 | * Copyright (C) 1999 Steve Ratcliffe | |
9 | * Copyright (c) 1999-2000 Takashi iwai <tiwai@suse.de> | |
1da177e4 LT |
10 | */ |
11 | ||
a1ce3928 DH |
12 | #include <sound/sfnt_info.h> |
13 | #include <sound/util_mem.h> | |
1da177e4 LT |
14 | |
15 | #define SF_MAX_INSTRUMENTS 128 /* maximum instrument number */ | |
16 | #define SF_MAX_PRESETS 256 /* drums are mapped from 128 to 256 */ | |
17 | #define SF_IS_DRUM_BANK(z) ((z) == 128) | |
18 | ||
03da312a | 19 | struct snd_sf_zone { |
1da177e4 LT |
20 | struct snd_sf_zone *next; /* Link to next */ |
21 | unsigned char bank; /* Midi bank for this zone */ | |
22 | unsigned char instr; /* Midi program for this zone */ | |
23 | unsigned char mapped; /* True if mapped to something else */ | |
24 | ||
03da312a | 25 | struct soundfont_voice_info v; /* All the soundfont parameters */ |
1da177e4 LT |
26 | int counter; |
27 | struct snd_sf_sample *sample; /* Link to sample */ | |
28 | ||
29 | /* The following deals with preset numbers (programs) */ | |
30 | struct snd_sf_zone *next_instr; /* Next zone of this instrument */ | |
31 | struct snd_sf_zone *next_zone; /* Next zone in play list */ | |
03da312a | 32 | }; |
1da177e4 | 33 | |
03da312a TI |
34 | struct snd_sf_sample { |
35 | struct soundfont_sample_info v; | |
1da177e4 | 36 | int counter; |
03da312a | 37 | struct snd_util_memblk *block; /* allocated data block */ |
1da177e4 | 38 | struct snd_sf_sample *next; |
03da312a | 39 | }; |
1da177e4 LT |
40 | |
41 | /* | |
42 | * This represents all the information relating to a soundfont. | |
43 | */ | |
03da312a | 44 | struct snd_soundfont { |
1da177e4 LT |
45 | struct snd_soundfont *next; /* Link to next */ |
46 | /*struct snd_soundfont *prev;*/ /* Link to previous */ | |
47 | short id; /* file id */ | |
48 | short type; /* font type */ | |
49 | unsigned char name[SNDRV_SFNT_PATCH_NAME_LEN]; /* identifier */ | |
03da312a TI |
50 | struct snd_sf_zone *zones; /* Font information */ |
51 | struct snd_sf_sample *samples; /* The sample headers */ | |
52 | }; | |
1da177e4 LT |
53 | |
54 | /* | |
55 | * Type of the sample access callback | |
56 | */ | |
03da312a | 57 | struct snd_sf_callback { |
1da177e4 | 58 | void *private_data; |
03da312a TI |
59 | int (*sample_new)(void *private_data, struct snd_sf_sample *sp, |
60 | struct snd_util_memhdr *hdr, | |
61 | const void __user *buf, long count); | |
62 | int (*sample_free)(void *private_data, struct snd_sf_sample *sp, | |
63 | struct snd_util_memhdr *hdr); | |
64 | void (*sample_reset)(void *private); | |
65 | }; | |
1da177e4 LT |
66 | |
67 | /* | |
68 | * List of soundfonts. | |
69 | */ | |
03da312a TI |
70 | struct snd_sf_list { |
71 | struct snd_soundfont *currsf; /* The currently open soundfont */ | |
1da177e4 LT |
72 | int open_client; /* client pointer for lock */ |
73 | int mem_used; /* used memory size */ | |
03da312a TI |
74 | struct snd_sf_zone *presets[SF_MAX_PRESETS]; |
75 | struct snd_soundfont *fonts; /* The list of soundfonts */ | |
1da177e4 LT |
76 | int fonts_size; /* number of fonts allocated */ |
77 | int zone_counter; /* last allocated time for zone */ | |
78 | int sample_counter; /* last allocated time for sample */ | |
79 | int zone_locked; /* locked time for zone */ | |
80 | int sample_locked; /* locked time for sample */ | |
03da312a | 81 | struct snd_sf_callback callback; /* callback functions */ |
1da177e4 | 82 | int presets_locked; |
ef9f0a42 | 83 | struct mutex presets_mutex; |
1da177e4 | 84 | spinlock_t lock; |
03da312a TI |
85 | struct snd_util_memhdr *memhdr; |
86 | }; | |
1da177e4 LT |
87 | |
88 | /* Prototypes for soundfont.c */ | |
03da312a TI |
89 | int snd_soundfont_load(struct snd_sf_list *sflist, const void __user *data, |
90 | long count, int client); | |
91 | int snd_soundfont_load_guspatch(struct snd_sf_list *sflist, const char __user *data, | |
1da177e4 | 92 | long count, int client); |
03da312a | 93 | int snd_soundfont_close_check(struct snd_sf_list *sflist, int client); |
1da177e4 | 94 | |
03da312a TI |
95 | struct snd_sf_list *snd_sf_new(struct snd_sf_callback *callback, |
96 | struct snd_util_memhdr *hdr); | |
97 | void snd_sf_free(struct snd_sf_list *sflist); | |
1da177e4 | 98 | |
03da312a TI |
99 | int snd_soundfont_remove_samples(struct snd_sf_list *sflist); |
100 | int snd_soundfont_remove_unlocked(struct snd_sf_list *sflist); | |
1da177e4 | 101 | |
03da312a | 102 | int snd_soundfont_search_zone(struct snd_sf_list *sflist, int *notep, int vel, |
1da177e4 LT |
103 | int preset, int bank, |
104 | int def_preset, int def_bank, | |
03da312a | 105 | struct snd_sf_zone **table, int max_layers); |
1da177e4 LT |
106 | |
107 | /* Parameter conversions */ | |
108 | int snd_sf_calc_parm_hold(int msec); | |
109 | int snd_sf_calc_parm_attack(int msec); | |
110 | int snd_sf_calc_parm_decay(int msec); | |
497888cf | 111 | #define snd_sf_calc_parm_delay(msec) (0x8000 - (msec) * 1000 / 725) |
1da177e4 LT |
112 | extern int snd_sf_vol_table[128]; |
113 | int snd_sf_linear_to_log(unsigned int amount, int offset, int ratio); | |
114 | ||
115 | ||
116 | #endif /* __SOUND_SOUNDFONT_H */ |