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1da177e4 LT |
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 | */ | |
674e95ca DH |
22 | #ifndef __SOUND_SB16_CSP_H |
23 | #define __SOUND_SB16_CSP_H | |
1da177e4 | 24 | |
a1ce3928 DH |
25 | #include <sound/sb.h> |
26 | #include <sound/hwdep.h> | |
de66d53e | 27 | #include <linux/firmware.h> |
674e95ca | 28 | #include <uapi/sound/sb16_csp.h> |
1da177e4 | 29 | |
029d64b0 | 30 | struct snd_sb_csp; |
1da177e4 | 31 | |
de66d53e CL |
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 | ||
1da177e4 LT |
43 | /* |
44 | * CSP operators | |
45 | */ | |
029d64b0 TI |
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 | }; | |
1da177e4 LT |
54 | |
55 | /* | |
56 | * CSP private data | |
57 | */ | |
58 | struct snd_sb_csp { | |
029d64b0 | 59 | struct snd_sb *chip; /* SB16 DSP */ |
1da177e4 LT |
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 | ||
029d64b0 | 73 | struct snd_sb_csp_ops ops; /* operators */ |
1da177e4 LT |
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 | ||
029d64b0 TI |
81 | struct snd_kcontrol *qsound_switch; |
82 | struct snd_kcontrol *qsound_space; | |
1da177e4 | 83 | |
8b7547f9 | 84 | struct mutex access_mutex; /* locking */ |
de66d53e CL |
85 | |
86 | const struct firmware *csp_programs[CSP_PROGRAM_COUNT]; | |
1da177e4 LT |
87 | }; |
88 | ||
029d64b0 | 89 | int snd_sb_csp_new(struct snd_sb *chip, int device, struct snd_hwdep ** rhwdep); |
1da177e4 | 90 | #endif /* __SOUND_SB16_CSP */ |