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Diffstat (limited to 'include/sound/sb16_csp.h')
| -rw-r--r-- | include/sound/sb16_csp.h | 167 |
1 files changed, 167 insertions, 0 deletions
diff --git a/include/sound/sb16_csp.h b/include/sound/sb16_csp.h new file mode 100644 index 00000000000..eb8368b56b1 --- /dev/null +++ b/include/sound/sb16_csp.h @@ -0,0 +1,167 @@ +#ifndef __SOUND_SB16_CSP_H +#define __SOUND_SB16_CSP_H + +/* + * Copyright (c) 1999 by Uros Bizjak <uros@kss-loka.si> + * Takashi Iwai <tiwai@suse.de> + * + * 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 + * + */ + +/* CSP modes */ +#define SNDRV_SB_CSP_MODE_NONE 0x00 +#define SNDRV_SB_CSP_MODE_DSP_READ 0x01 /* Record from DSP */ +#define SNDRV_SB_CSP_MODE_DSP_WRITE 0x02 /* Play to DSP */ +#define SNDRV_SB_CSP_MODE_QSOUND 0x04 /* QSound */ + +/* CSP load flags */ +#define SNDRV_SB_CSP_LOAD_FROMUSER 0x01 +#define SNDRV_SB_CSP_LOAD_INITBLOCK 0x02 + +/* CSP sample width */ +#define SNDRV_SB_CSP_SAMPLE_8BIT 0x01 +#define SNDRV_SB_CSP_SAMPLE_16BIT 0x02 + +/* CSP channels */ +#define SNDRV_SB_CSP_MONO 0x01 +#define SNDRV_SB_CSP_STEREO 0x02 + +/* CSP rates */ +#define SNDRV_SB_CSP_RATE_8000 0x01 +#define SNDRV_SB_CSP_RATE_11025 0x02 +#define SNDRV_SB_CSP_RATE_22050 0x04 +#define SNDRV_SB_CSP_RATE_44100 0x08 +#define SNDRV_SB_CSP_RATE_ALL 0x0f + +/* CSP running state */ +#define SNDRV_SB_CSP_ST_IDLE 0x00 +#define SNDRV_SB_CSP_ST_LOADED 0x01 +#define SNDRV_SB_CSP_ST_RUNNING 0x02 +#define SNDRV_SB_CSP_ST_PAUSED 0x04 +#define SNDRV_SB_CSP_ST_AUTO 0x08 +#define SNDRV_SB_CSP_ST_QSOUND 0x10 + +/* maximum QSound value (180 degrees right) */ +#define SNDRV_SB_CSP_QSOUND_MAX_RIGHT 0x20 + +/* maximum microcode RIFF file size */ +#define SNDRV_SB_CSP_MAX_MICROCODE_FILE_SIZE 0x3000 + +/* microcode header */ +typedef struct snd_sb_csp_mc_header { + char codec_name[16]; /* id name of codec */ + unsigned short func_req; /* requested function */ +} snd_sb_csp_mc_header_t; + +/* microcode to be loaded */ +typedef struct snd_sb_csp_microcode { + snd_sb_csp_mc_header_t info; + unsigned char data[SNDRV_SB_CSP_MAX_MICROCODE_FILE_SIZE]; +} snd_sb_csp_microcode_t; + +/* start CSP with sample_width in mono/stereo */ +typedef struct snd_sb_csp_start { + int sample_width; /* sample width, look above */ + int channels; /* channels, look above */ +} snd_sb_csp_start_t; + +/* CSP information */ +typedef struct snd_sb_csp_info { + char codec_name[16]; /* id name of codec */ + unsigned short func_nr; /* function number */ + unsigned int acc_format; /* accepted PCM formats */ + unsigned short acc_channels; /* accepted channels */ + unsigned short acc_width; /* accepted sample width */ + unsigned short acc_rates; /* accepted sample rates */ + unsigned short csp_mode; /* CSP mode, see above */ + unsigned short run_channels; /* current channels */ + unsigned short run_width; /* current sample width */ + unsigned short version; /* version id: 0x10 - 0x1f */ + unsigned short state; /* state bits */ +} snd_sb_csp_info_t; + +/* HWDEP controls */ +/* get CSP information */ +#define SNDRV_SB_CSP_IOCTL_INFO _IOR('H', 0x10, snd_sb_csp_info_t) +/* load microcode to CSP */ +#define SNDRV_SB_CSP_IOCTL_LOAD_CODE _IOW('H', 0x11, snd_sb_csp_microcode_t) +/* unload microcode from CSP */ +#define SNDRV_SB_CSP_IOCTL_UNLOAD_CODE _IO('H', 0x12) +/* start CSP */ +#define SNDRV_SB_CSP_IOCTL_START _IOW('H', 0x13, snd_sb_csp_start_t) +/* stop CSP */ +#define SNDRV_SB_CSP_IOCTL_STOP _IO('H', 0x14) +/* pause CSP and DMA transfer */ +#define SNDRV_SB_CSP_IOCTL_PAUSE _IO('H', 0x15) +/* restart CSP and DMA transfer */ +#define SNDRV_SB_CSP_IOCTL_RESTART _IO('H', 0x16) + +#ifdef __KERNEL__ +#include "sb.h" +#include "hwdep.h" + +typedef struct snd_sb_csp snd_sb_csp_t; + +/* + * CSP operators + */ +typedef struct { + int (*csp_use) (snd_sb_csp_t * p); + int (*csp_unuse) (snd_sb_csp_t * p); + int (*csp_autoload) (snd_sb_csp_t * p, int pcm_sfmt, int play_rec_mode); + int (*csp_start) (snd_sb_csp_t * p, int sample_width, int channels); + int (*csp_stop) (snd_sb_csp_t * p); + int (*csp_qsound_transfer) (snd_sb_csp_t * p); +} snd_sb_csp_ops_t; + +/* + * CSP private data + */ +struct snd_sb_csp { + sb_t *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 */ + + snd_sb_csp_ops_t 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 */ + + snd_kcontrol_t *qsound_switch; + snd_kcontrol_t *qsound_space; + + struct semaphore access_mutex; /* locking */ +}; + +int snd_sb_csp_new(sb_t *chip, int device, snd_hwdep_t ** rhwdep); +#endif + +#endif /* __SOUND_SB16_CSP */ |