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1 | /* |
2 | * Copyright (c) 1999 by Uros Bizjak <uros@kss-loka.si> |
3 | * Takashi Iwai <tiwai@suse.de> |
4 | * |
5 | * SB16ASP/AWE32 CSP control |
6 | * |
7 | * This program is free software; you can redistribute it and/or modify |
8 | * it under the terms of the GNU General Public License as published by |
9 | * the Free Software Foundation; either version 2 of the License, or |
10 | * (at your option) any later version. |
11 | * |
12 | * This program is distributed in the hope that it will be useful, |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
15 | * GNU General Public License for more details. |
16 | * |
17 | * You should have received a copy of the GNU General Public License |
18 | * along with this program; if not, write to the Free Software |
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
20 | * |
21 | */ |
22 | #ifndef __SOUND_SB16_CSP_H |
23 | #define __SOUND_SB16_CSP_H |
24 | |
25 | #include <sound/sb.h> |
26 | #include <sound/hwdep.h> |
27 | #include <linux/firmware.h> |
28 | #include <uapi/sound/sb16_csp.h> |
29 | |
30 | struct snd_sb_csp; |
31 | |
32 | /* indices for the known CSP programs */ |
33 | enum { |
34 | CSP_PROGRAM_MULAW, |
35 | CSP_PROGRAM_ALAW, |
36 | CSP_PROGRAM_ADPCM_INIT, |
37 | CSP_PROGRAM_ADPCM_PLAYBACK, |
38 | CSP_PROGRAM_ADPCM_CAPTURE, |
39 | |
40 | CSP_PROGRAM_COUNT |
41 | }; |
42 | |
43 | /* |
44 | * CSP operators |
45 | */ |
46 | struct snd_sb_csp_ops { |
47 | int (*csp_use) (struct snd_sb_csp * p); |
48 | int (*csp_unuse) (struct snd_sb_csp * p); |
49 | int (*csp_autoload) (struct snd_sb_csp * p, int pcm_sfmt, int play_rec_mode); |
50 | int (*csp_start) (struct snd_sb_csp * p, int sample_width, int channels); |
51 | int (*csp_stop) (struct snd_sb_csp * p); |
52 | int (*csp_qsound_transfer) (struct snd_sb_csp * p); |
53 | }; |
54 | |
55 | /* |
56 | * CSP private data |
57 | */ |
58 | struct snd_sb_csp { |
59 | struct snd_sb *chip; /* SB16 DSP */ |
60 | int used; /* usage flag - exclusive */ |
61 | char codec_name[16]; /* name of codec */ |
62 | unsigned short func_nr; /* function number */ |
63 | unsigned int acc_format; /* accepted PCM formats */ |
64 | int acc_channels; /* accepted channels */ |
65 | int acc_width; /* accepted sample width */ |
66 | int acc_rates; /* accepted sample rates */ |
67 | int mode; /* MODE */ |
68 | int run_channels; /* current CSP channels */ |
69 | int run_width; /* current sample width */ |
70 | int version; /* CSP version (0x10 - 0x1f) */ |
71 | int running; /* running state */ |
72 | |
73 | struct snd_sb_csp_ops ops; /* operators */ |
74 | |
75 | spinlock_t q_lock; /* locking */ |
76 | int q_enabled; /* enabled flag */ |
77 | int qpos_left; /* left position */ |
78 | int qpos_right; /* right position */ |
79 | int qpos_changed; /* position changed flag */ |
80 | |
81 | struct snd_kcontrol *qsound_switch; |
82 | struct snd_kcontrol *qsound_space; |
83 | |
84 | struct mutex access_mutex; /* locking */ |
85 | |
86 | const struct firmware *csp_programs[CSP_PROGRAM_COUNT]; |
87 | }; |
88 | |
89 | int snd_sb_csp_new(struct snd_sb *chip, int device, struct snd_hwdep ** rhwdep); |
90 | #endif /* __SOUND_SB16_CSP */ |
91 |
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