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- /* SPDX-License-Identifier: GPL-2.0-or-later */
- /*
- * Copyright (c) 1999 by Uros Bizjak <[email protected]>
- * Takashi Iwai <[email protected]>
- *
- * SB16ASP/AWE32 CSP control
- */
- #ifndef __SOUND_SB16_CSP_H
- #define __SOUND_SB16_CSP_H
- #include <sound/sb.h>
- #include <sound/hwdep.h>
- #include <linux/firmware.h>
- #include <uapi/sound/sb16_csp.h>
- struct snd_sb_csp;
- /* indices for the known CSP programs */
- enum {
- CSP_PROGRAM_MULAW,
- CSP_PROGRAM_ALAW,
- CSP_PROGRAM_ADPCM_INIT,
- CSP_PROGRAM_ADPCM_PLAYBACK,
- CSP_PROGRAM_ADPCM_CAPTURE,
- CSP_PROGRAM_COUNT
- };
- /*
- * CSP operators
- */
- struct snd_sb_csp_ops {
- int (*csp_use) (struct snd_sb_csp * p);
- int (*csp_unuse) (struct snd_sb_csp * p);
- int (*csp_autoload) (struct snd_sb_csp * p, snd_pcm_format_t pcm_sfmt, int play_rec_mode);
- int (*csp_start) (struct snd_sb_csp * p, int sample_width, int channels);
- int (*csp_stop) (struct snd_sb_csp * p);
- int (*csp_qsound_transfer) (struct snd_sb_csp * p);
- };
- /*
- * CSP private data
- */
- struct snd_sb_csp {
- struct snd_sb *chip; /* SB16 DSP */
- int used; /* usage flag - exclusive */
- char codec_name[16]; /* name of codec */
- unsigned short func_nr; /* function number */
- unsigned int acc_format; /* accepted PCM formats */
- int acc_channels; /* accepted channels */
- int acc_width; /* accepted sample width */
- int acc_rates; /* accepted sample rates */
- int mode; /* MODE */
- int run_channels; /* current CSP channels */
- int run_width; /* current sample width */
- int version; /* CSP version (0x10 - 0x1f) */
- int running; /* running state */
- struct snd_sb_csp_ops ops; /* operators */
- spinlock_t q_lock; /* locking */
- int q_enabled; /* enabled flag */
- int qpos_left; /* left position */
- int qpos_right; /* right position */
- int qpos_changed; /* position changed flag */
- struct snd_kcontrol *qsound_switch;
- struct snd_kcontrol *qsound_space;
- struct mutex access_mutex; /* locking */
- const struct firmware *csp_programs[CSP_PROGRAM_COUNT];
- };
- int snd_sb_csp_new(struct snd_sb *chip, int device, struct snd_hwdep ** rhwdep);
- #endif /* __SOUND_SB16_CSP */
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