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