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1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ | |
2 | /* | |
3 | * Copyright (c) 1999 by Uros Bizjak <uros@kss-loka.si> | |
4 | * Takashi Iwai <tiwai@suse.de> | |
5 | * | |
6 | * SB16ASP/AWE32 CSP control | |
7 | */ | |
8 | #ifndef __SOUND_SB16_CSP_H | |
9 | #define __SOUND_SB16_CSP_H | |
10 | ||
11 | #include <sound/sb.h> | |
12 | #include <sound/hwdep.h> | |
13 | #include <linux/firmware.h> | |
14 | #include <uapi/sound/sb16_csp.h> | |
15 | ||
16 | struct snd_sb_csp; | |
17 | ||
18 | /* indices for the known CSP programs */ | |
19 | enum { | |
20 | CSP_PROGRAM_MULAW, | |
21 | CSP_PROGRAM_ALAW, | |
22 | CSP_PROGRAM_ADPCM_INIT, | |
23 | CSP_PROGRAM_ADPCM_PLAYBACK, | |
24 | CSP_PROGRAM_ADPCM_CAPTURE, | |
25 | ||
26 | CSP_PROGRAM_COUNT | |
27 | }; | |
28 | ||
29 | /* | |
30 | * CSP operators | |
31 | */ | |
32 | struct snd_sb_csp_ops { | |
33 | int (*csp_use) (struct snd_sb_csp * p); | |
34 | int (*csp_unuse) (struct snd_sb_csp * p); | |
35 | int (*csp_autoload) (struct snd_sb_csp * p, snd_pcm_format_t pcm_sfmt, int play_rec_mode); | |
36 | int (*csp_start) (struct snd_sb_csp * p, int sample_width, int channels); | |
37 | int (*csp_stop) (struct snd_sb_csp * p); | |
38 | int (*csp_qsound_transfer) (struct snd_sb_csp * p); | |
39 | }; | |
40 | ||
41 | /* | |
42 | * CSP private data | |
43 | */ | |
44 | struct snd_sb_csp { | |
45 | struct snd_sb *chip; /* SB16 DSP */ | |
46 | int used; /* usage flag - exclusive */ | |
47 | char codec_name[16]; /* name of codec */ | |
48 | unsigned short func_nr; /* function number */ | |
49 | unsigned int acc_format; /* accepted PCM formats */ | |
50 | int acc_channels; /* accepted channels */ | |
51 | int acc_width; /* accepted sample width */ | |
52 | int acc_rates; /* accepted sample rates */ | |
53 | int mode; /* MODE */ | |
54 | int run_channels; /* current CSP channels */ | |
55 | int run_width; /* current sample width */ | |
56 | int version; /* CSP version (0x10 - 0x1f) */ | |
57 | int running; /* running state */ | |
58 | ||
59 | struct snd_sb_csp_ops ops; /* operators */ | |
60 | ||
61 | spinlock_t q_lock; /* locking */ | |
62 | int q_enabled; /* enabled flag */ | |
63 | int qpos_left; /* left position */ | |
64 | int qpos_right; /* right position */ | |
65 | int qpos_changed; /* position changed flag */ | |
66 | ||
67 | struct snd_kcontrol *qsound_switch; | |
68 | struct snd_kcontrol *qsound_space; | |
69 | ||
70 | struct mutex access_mutex; /* locking */ | |
71 | ||
72 | const struct firmware *csp_programs[CSP_PROGRAM_COUNT]; | |
73 | }; | |
74 | ||
75 | int snd_sb_csp_new(struct snd_sb *chip, int device, struct snd_hwdep ** rhwdep); | |
76 | #endif /* __SOUND_SB16_CSP */ |