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      1 #ifndef __SOUND_SB16_CSP_H
      2 #define __SOUND_SB16_CSP_H
      3 
      4 /*
      5  *  Copyright (c) 1999 by Uros Bizjak <uros (at) kss-loka.si>
      6  *                        Takashi Iwai <tiwai (at) suse.de>
      7  *
      8  *  SB16ASP/AWE32 CSP control
      9  *
     10  *   This program is free software; you can redistribute it and/or modify
     11  *   it under the terms of the GNU General Public License as published by
     12  *   the Free Software Foundation; either version 2 of the License, or
     13  *   (at your option) any later version.
     14  *
     15  *   This program is distributed in the hope that it will be useful,
     16  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
     17  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     18  *   GNU General Public License for more details.
     19  *
     20  *   You should have received a copy of the GNU General Public License
     21  *   along with this program; if not, write to the Free Software
     22  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
     23  *
     24  */
     25 
     26 /* CSP modes */
     27 #define SNDRV_SB_CSP_MODE_NONE		0x00
     28 #define SNDRV_SB_CSP_MODE_DSP_READ	0x01	/* Record from DSP */
     29 #define SNDRV_SB_CSP_MODE_DSP_WRITE	0x02	/* Play to DSP */
     30 #define SNDRV_SB_CSP_MODE_QSOUND		0x04	/* QSound */
     31 
     32 /* CSP load flags */
     33 #define SNDRV_SB_CSP_LOAD_FROMUSER	0x01
     34 #define SNDRV_SB_CSP_LOAD_INITBLOCK	0x02
     35 
     36 /* CSP sample width */
     37 #define SNDRV_SB_CSP_SAMPLE_8BIT		0x01
     38 #define SNDRV_SB_CSP_SAMPLE_16BIT		0x02
     39 
     40 /* CSP channels */
     41 #define SNDRV_SB_CSP_MONO			0x01
     42 #define SNDRV_SB_CSP_STEREO		0x02
     43 
     44 /* CSP rates */
     45 #define SNDRV_SB_CSP_RATE_8000		0x01
     46 #define SNDRV_SB_CSP_RATE_11025		0x02
     47 #define SNDRV_SB_CSP_RATE_22050		0x04
     48 #define SNDRV_SB_CSP_RATE_44100		0x08
     49 #define SNDRV_SB_CSP_RATE_ALL		0x0f
     50 
     51 /* CSP running state */
     52 #define SNDRV_SB_CSP_ST_IDLE		0x00
     53 #define SNDRV_SB_CSP_ST_LOADED		0x01
     54 #define SNDRV_SB_CSP_ST_RUNNING		0x02
     55 #define SNDRV_SB_CSP_ST_PAUSED		0x04
     56 #define SNDRV_SB_CSP_ST_AUTO		0x08
     57 #define SNDRV_SB_CSP_ST_QSOUND		0x10
     58 
     59 /* maximum QSound value (180 degrees right) */
     60 #define SNDRV_SB_CSP_QSOUND_MAX_RIGHT	0x20
     61 
     62 /* maximum microcode RIFF file size */
     63 #define SNDRV_SB_CSP_MAX_MICROCODE_FILE_SIZE	0x3000
     64 
     65 /* microcode header */
     66 typedef struct snd_sb_csp_mc_header {
     67 	char codec_name[16];		/* id name of codec */
     68 	unsigned short func_req;	/* requested function */
     69 } snd_sb_csp_mc_header_t;
     70 
     71 /* microcode to be loaded */
     72 typedef struct snd_sb_csp_microcode {
     73 	snd_sb_csp_mc_header_t info;
     74 	unsigned char data[SNDRV_SB_CSP_MAX_MICROCODE_FILE_SIZE];
     75 } snd_sb_csp_microcode_t;
     76 
     77 /* start CSP with sample_width in mono/stereo */
     78 typedef struct snd_sb_csp_start {
     79 	int sample_width;	/* sample width, look above */
     80 	int channels;		/* channels, look above */
     81 } snd_sb_csp_start_t;
     82 
     83 /* CSP information */
     84 typedef struct snd_sb_csp_info {
     85 	char codec_name[16];		/* id name of codec */
     86 	unsigned short func_nr;		/* function number */
     87 	unsigned int acc_format;	/* accepted PCM formats */
     88 	unsigned short acc_channels;	/* accepted channels */
     89 	unsigned short acc_width;	/* accepted sample width */
     90 	unsigned short acc_rates;	/* accepted sample rates */
     91 	unsigned short csp_mode;	/* CSP mode, see above */
     92 	unsigned short run_channels;	/* current channels  */
     93 	unsigned short run_width;	/* current sample width */
     94 	unsigned short version;		/* version id: 0x10 - 0x1f */
     95 	unsigned short state;		/* state bits */
     96 } snd_sb_csp_info_t;
     97 
     98 /* HWDEP controls */
     99 /* get CSP information */
    100 #define SNDRV_SB_CSP_IOCTL_INFO		_IOR('H', 0x10, snd_sb_csp_info_t)
    101 /* load microcode to CSP */
    102 #define SNDRV_SB_CSP_IOCTL_LOAD_CODE	_IOW('H', 0x11, snd_sb_csp_microcode_t)
    103 /* unload microcode from CSP */
    104 #define SNDRV_SB_CSP_IOCTL_UNLOAD_CODE	_IO('H', 0x12)
    105 /* start CSP */
    106 #define SNDRV_SB_CSP_IOCTL_START	_IOW('H', 0x13, snd_sb_csp_start_t)
    107 /* stop CSP */
    108 #define SNDRV_SB_CSP_IOCTL_STOP		_IO('H', 0x14)
    109 /* pause CSP and DMA transfer */
    110 #define SNDRV_SB_CSP_IOCTL_PAUSE	_IO('H', 0x15)
    111 /* restart CSP and DMA transfer */
    112 #define SNDRV_SB_CSP_IOCTL_RESTART	_IO('H', 0x16)
    113 
    114 
    115 #endif /* __SOUND_SB16_CSP */
    116