/* 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 */ unsignedshort func_nr; /* function number */ unsignedint 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 */
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