1 /* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ 2 /* 3 * Copyright (c) 1999 by Uros Bizjak <uros@kss-loka.si> 4 * Takashi Iwai <tiwai@suse.de> 5 * 6 * SB16ASP/AWE32 CSP control 7 */ 8 #ifndef _UAPI__SOUND_SB16_CSP_H 9 #define _UAPI__SOUND_SB16_CSP_H 10 11 12 /* CSP modes */ 13 #define SNDRV_SB_CSP_MODE_NONE 0x00 14 #define SNDRV_SB_CSP_MODE_DSP_READ 0x01 /* Record from DSP */ 15 #define SNDRV_SB_CSP_MODE_DSP_WRITE 0x02 /* Play to DSP */ 16 #define SNDRV_SB_CSP_MODE_QSOUND 0x04 /* QSound */ 17 18 /* CSP load flags */ 19 #define SNDRV_SB_CSP_LOAD_FROMUSER 0x01 20 #define SNDRV_SB_CSP_LOAD_INITBLOCK 0x02 21 22 /* CSP sample width */ 23 #define SNDRV_SB_CSP_SAMPLE_8BIT 0x01 24 #define SNDRV_SB_CSP_SAMPLE_16BIT 0x02 25 26 /* CSP channels */ 27 #define SNDRV_SB_CSP_MONO 0x01 28 #define SNDRV_SB_CSP_STEREO 0x02 29 30 /* CSP rates */ 31 #define SNDRV_SB_CSP_RATE_8000 0x01 32 #define SNDRV_SB_CSP_RATE_11025 0x02 33 #define SNDRV_SB_CSP_RATE_22050 0x04 34 #define SNDRV_SB_CSP_RATE_44100 0x08 35 #define SNDRV_SB_CSP_RATE_ALL 0x0f 36 37 /* CSP running state */ 38 #define SNDRV_SB_CSP_ST_IDLE 0x00 39 #define SNDRV_SB_CSP_ST_LOADED 0x01 40 #define SNDRV_SB_CSP_ST_RUNNING 0x02 41 #define SNDRV_SB_CSP_ST_PAUSED 0x04 42 #define SNDRV_SB_CSP_ST_AUTO 0x08 43 #define SNDRV_SB_CSP_ST_QSOUND 0x10 44 45 /* maximum QSound value (180 degrees right) */ 46 #define SNDRV_SB_CSP_QSOUND_MAX_RIGHT 0x20 47 48 /* maximum microcode RIFF file size */ 49 #define SNDRV_SB_CSP_MAX_MICROCODE_FILE_SIZE 0x3000 50 51 /* microcode header */ 52 struct snd_sb_csp_mc_header { 53 char codec_name[16]; /* id name of codec */ 54 unsigned short func_req; /* requested function */ 55 }; 56 57 /* microcode to be loaded */ 58 struct snd_sb_csp_microcode { 59 struct snd_sb_csp_mc_header info; 60 unsigned char data[SNDRV_SB_CSP_MAX_MICROCODE_FILE_SIZE]; 61 }; 62 63 /* start CSP with sample_width in mono/stereo */ 64 struct snd_sb_csp_start { 65 int sample_width; /* sample width, look above */ 66 int channels; /* channels, look above */ 67 }; 68 69 /* CSP information */ 70 struct snd_sb_csp_info { 71 char codec_name[16]; /* id name of codec */ 72 unsigned short func_nr; /* function number */ 73 unsigned int acc_format; /* accepted PCM formats */ 74 unsigned short acc_channels; /* accepted channels */ 75 unsigned short acc_width; /* accepted sample width */ 76 unsigned short acc_rates; /* accepted sample rates */ 77 unsigned short csp_mode; /* CSP mode, see above */ 78 unsigned short run_channels; /* current channels */ 79 unsigned short run_width; /* current sample width */ 80 unsigned short version; /* version id: 0x10 - 0x1f */ 81 unsigned short state; /* state bits */ 82 }; 83 84 /* HWDEP controls */ 85 /* get CSP information */ 86 #define SNDRV_SB_CSP_IOCTL_INFO _IOR('H', 0x10, struct snd_sb_csp_info) 87 /* load microcode to CSP */ 88 /* NOTE: struct snd_sb_csp_microcode overflows the max size (13 bits) 89 * defined for some architectures like MIPS, and it leads to build errors. 90 * (x86 and co have 14-bit size, thus it's valid, though.) 91 * As a workaround for skipping the size-limit check, here we don't use the 92 * normal _IOW() macro but _IOC() with the manual argument. 93 */ 94 #define SNDRV_SB_CSP_IOCTL_LOAD_CODE \ 95 _IOC(_IOC_WRITE, 'H', 0x11, sizeof(struct snd_sb_csp_microcode)) 96 /* unload microcode from CSP */ 97 #define SNDRV_SB_CSP_IOCTL_UNLOAD_CODE _IO('H', 0x12) 98 /* start CSP */ 99 #define SNDRV_SB_CSP_IOCTL_START _IOW('H', 0x13, struct snd_sb_csp_start) 100 /* stop CSP */ 101 #define SNDRV_SB_CSP_IOCTL_STOP _IO('H', 0x14) 102 /* pause CSP and DMA transfer */ 103 #define SNDRV_SB_CSP_IOCTL_PAUSE _IO('H', 0x15) 104 /* restart CSP and DMA transfer */ 105 #define SNDRV_SB_CSP_IOCTL_RESTART _IO('H', 0x16) 106 107 108 #endif /* _UAPI__SOUND_SB16_CSP_H */ 109