2 * Copyright (c) 1999 by Uros Bizjak <uros@kss-loka.si>
3 * Takashi Iwai <tiwai@suse.de>
5 * SB16ASP/AWE32 CSP control
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.
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.
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
22 #ifndef __SOUND_SB16_CSP_H
23 #define __SOUND_SB16_CSP_H
26 #include <sound/hwdep.h>
27 #include <linux/firmware.h>
28 #include <uapi/sound/sb16_csp.h>
32 /* indices for the known CSP programs */
36 CSP_PROGRAM_ADPCM_INIT,
37 CSP_PROGRAM_ADPCM_PLAYBACK,
38 CSP_PROGRAM_ADPCM_CAPTURE,
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);
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 */
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 */
73 struct snd_sb_csp_ops ops; /* operators */
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 */
81 struct snd_kcontrol *qsound_switch;
82 struct snd_kcontrol *qsound_space;
84 struct mutex access_mutex; /* locking */
86 const struct firmware *csp_programs[CSP_PROGRAM_COUNT];
89 int snd_sb_csp_new(struct snd_sb *chip, int device, struct snd_hwdep ** rhwdep);
90 #endif /* __SOUND_SB16_CSP */