| /* | |
| * Copyright (c) 1999 by Uros Bizjak <[email protected]> | |
| * Takashi Iwai <[email protected]> | |
| * | |
| * SB16ASP/AWE32 CSP control | |
| * | |
| * This program is free software; you can redistribute it and/or modify | |
| * it under the terms of the GNU General Public License as published by | |
| * the Free Software Foundation; either version 2 of the License, or | |
| * (at your option) any later version. | |
| * | |
| * This program is distributed in the hope that it will be useful, | |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| * GNU General Public License for more details. | |
| * | |
| * You should have received a copy of the GNU General Public License | |
| * along with this program; if not, write to the Free Software | |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
| * | |
| */ | |
| #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, int 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 */ |