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/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright (c) 1999 by Uros Bizjak * Takashi Iwai * * SB16ASP/AWE32 CSP control */ #ifndef __SOUND_SB16_CSP_H #define __SOUND_SB16_CSP_H #include #include #include #include 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 positio