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1/* SPDX-License-Identifier: GPL-2.0-or-later */2/*3 * Copyright (c) 1999 by Uros Bizjak <uros@kss-loka.si>4 * Takashi Iwai <tiwai@suse.de>5 *6 * SB16ASP/AWE32 CSP control7 */8#ifndef __SOUND_SB16_CSP_H9#define __SOUND_SB16_CSP_H10 11#include <sound/sb.h>12#include <sound/hwdep.h>13#include <linux/firmware.h>14#include <uapi/sound/sb16_csp.h>15 16struct snd_sb_csp;17 18/* indices for the known CSP programs */19enum {20 CSP_PROGRAM_MULAW,21 CSP_PROGRAM_ALAW,22 CSP_PROGRAM_ADPCM_INIT,23 CSP_PROGRAM_ADPCM_PLAYBACK,24 CSP_PROGRAM_ADPCM_CAPTURE,25 26 CSP_PROGRAM_COUNT27};28 29/*30 * CSP operators31 */32struct snd_sb_csp_ops {33 int (*csp_use) (struct snd_sb_csp * p);34 int (*csp_unuse) (struct snd_sb_csp * p);35 int (*csp_autoload) (struct snd_sb_csp * p, snd_pcm_format_t pcm_sfmt, int play_rec_mode);36 int (*csp_start) (struct snd_sb_csp * p, int sample_width, int channels);37 int (*csp_stop) (struct snd_sb_csp * p);38 int (*csp_qsound_transfer) (struct snd_sb_csp * p);39};40 41/*42 * CSP private data43 */44struct snd_sb_csp {45 struct snd_sb *chip; /* SB16 DSP */46 int used; /* usage flag - exclusive */47 char codec_name[16]; /* name of codec */48 unsigned short func_nr; /* function number */49 unsigned int acc_format; /* accepted PCM formats */50 int acc_channels; /* accepted channels */51 int acc_width; /* accepted sample width */52 int acc_rates; /* accepted sample rates */53 int mode; /* MODE */54 int run_channels; /* current CSP channels */55 int run_width; /* current sample width */56 int version; /* CSP version (0x10 - 0x1f) */57 int running; /* running state */58 59 struct snd_sb_csp_ops ops; /* operators */60 61 spinlock_t q_lock; /* locking */62 int q_enabled; /* enabled flag */63 int qpos_left; /* left position */64 int qpos_right; /* right position */65 int qpos_changed; /* position changed flag */66 67 struct snd_kcontrol *qsound_switch;68 struct snd_kcontrol *qsound_space;69 70 struct mutex access_mutex; /* locking */71 72 const struct firmware *csp_programs[CSP_PROGRAM_COUNT];73};74 75int snd_sb_csp_new(struct snd_sb *chip, int device, struct snd_hwdep ** rhwdep);76#endif /* __SOUND_SB16_CSP */77