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sb16_csp.h
/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ /* * Copyright (c) 1999 by Uros Bizjak <uros@kss-loka.si> * Takashi Iwai <tiwai@suse.de> * * SB16ASP/AWE32 CSP control */ #ifndef __SOUND_SB16_CSP_H #define __SOUND_SB16_CSP_H /* 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 */ struct snd_sb_csp_mc_header { char codec_name[16]; /* id name of codec */ unsigned short func_req; /* requested function */ }; /* microcode to be loaded */ struct snd_sb_csp_microcode { struct snd_sb_csp_mc_header info; unsigned char data[SNDRV_SB_CSP_MAX_MICROCODE_FILE_SIZE]; }; /* start CSP with sample_width in mono/stereo */ struct snd_sb_csp_start { int sample_width; /* sample width, look above */ int channels; /* channels, look above */ }; /* CSP information */ 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 */ }; /* HWDEP controls */ /* get CSP information */ #define SNDRV_SB_CSP_IOCTL_INFO _IOR('H', 0x10, struct snd_sb_csp_info) /* load microcode to CSP */ /* NOTE: struct snd_sb_csp_microcode overflows the max size (13 bits) * defined for some architectures like MIPS, and it leads to build errors. * (x86 and co have 14-bit size, thus it's valid, though.) * As a workaround for skipping the size-limit check, here we don't use the * normal _IOW() macro but _IOC() with the manual argument. */ #define SNDRV_SB_CSP_IOCTL_LOAD_CODE \ _IOC(_IOC_WRITE, 'H', 0x11, sizeof(struct snd_sb_csp_microcode)) /* 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, struct snd_sb_csp_start) /* 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) #endif /* __SOUND_SB16_CSP_H */
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