sb16_csp.h (4319B)
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 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License as published by 10 * the Free Software Foundation; either version 2 of the License, or 11 * (at your option) any later version. 12 * 13 * This program is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * GNU General Public License for more details. 17 * 18 * You should have received a copy of the GNU General Public License 19 * along with this program; if not, write to the Free Software 20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 21 * 22 */ 23#ifndef _UAPI__SOUND_SB16_CSP_H 24#define _UAPI__SOUND_SB16_CSP_H 25 26 27/* CSP modes */ 28#define SNDRV_SB_CSP_MODE_NONE 0x00 29#define SNDRV_SB_CSP_MODE_DSP_READ 0x01 /* Record from DSP */ 30#define SNDRV_SB_CSP_MODE_DSP_WRITE 0x02 /* Play to DSP */ 31#define SNDRV_SB_CSP_MODE_QSOUND 0x04 /* QSound */ 32 33/* CSP load flags */ 34#define SNDRV_SB_CSP_LOAD_FROMUSER 0x01 35#define SNDRV_SB_CSP_LOAD_INITBLOCK 0x02 36 37/* CSP sample width */ 38#define SNDRV_SB_CSP_SAMPLE_8BIT 0x01 39#define SNDRV_SB_CSP_SAMPLE_16BIT 0x02 40 41/* CSP channels */ 42#define SNDRV_SB_CSP_MONO 0x01 43#define SNDRV_SB_CSP_STEREO 0x02 44 45/* CSP rates */ 46#define SNDRV_SB_CSP_RATE_8000 0x01 47#define SNDRV_SB_CSP_RATE_11025 0x02 48#define SNDRV_SB_CSP_RATE_22050 0x04 49#define SNDRV_SB_CSP_RATE_44100 0x08 50#define SNDRV_SB_CSP_RATE_ALL 0x0f 51 52/* CSP running state */ 53#define SNDRV_SB_CSP_ST_IDLE 0x00 54#define SNDRV_SB_CSP_ST_LOADED 0x01 55#define SNDRV_SB_CSP_ST_RUNNING 0x02 56#define SNDRV_SB_CSP_ST_PAUSED 0x04 57#define SNDRV_SB_CSP_ST_AUTO 0x08 58#define SNDRV_SB_CSP_ST_QSOUND 0x10 59 60/* maximum QSound value (180 degrees right) */ 61#define SNDRV_SB_CSP_QSOUND_MAX_RIGHT 0x20 62 63/* maximum microcode RIFF file size */ 64#define SNDRV_SB_CSP_MAX_MICROCODE_FILE_SIZE 0x3000 65 66/* microcode header */ 67struct snd_sb_csp_mc_header { 68 char codec_name[16]; /* id name of codec */ 69 unsigned short func_req; /* requested function */ 70}; 71 72/* microcode to be loaded */ 73struct snd_sb_csp_microcode { 74 struct snd_sb_csp_mc_header info; 75 unsigned char data[SNDRV_SB_CSP_MAX_MICROCODE_FILE_SIZE]; 76}; 77 78/* start CSP with sample_width in mono/stereo */ 79struct snd_sb_csp_start { 80 int sample_width; /* sample width, look above */ 81 int channels; /* channels, look above */ 82}; 83 84/* CSP information */ 85struct snd_sb_csp_info { 86 char codec_name[16]; /* id name of codec */ 87 unsigned short func_nr; /* function number */ 88 unsigned int acc_format; /* accepted PCM formats */ 89 unsigned short acc_channels; /* accepted channels */ 90 unsigned short acc_width; /* accepted sample width */ 91 unsigned short acc_rates; /* accepted sample rates */ 92 unsigned short csp_mode; /* CSP mode, see above */ 93 unsigned short run_channels; /* current channels */ 94 unsigned short run_width; /* current sample width */ 95 unsigned short version; /* version id: 0x10 - 0x1f */ 96 unsigned short state; /* state bits */ 97}; 98 99/* HWDEP controls */ 100/* get CSP information */ 101#define SNDRV_SB_CSP_IOCTL_INFO _IOR('H', 0x10, struct snd_sb_csp_info) 102/* load microcode to CSP */ 103/* NOTE: struct snd_sb_csp_microcode overflows the max size (13 bits) 104 * defined for some architectures like MIPS, and it leads to build errors. 105 * (x86 and co have 14-bit size, thus it's valid, though.) 106 * As a workaround for skipping the size-limit check, here we don't use the 107 * normal _IOW() macro but _IOC() with the manual argument. 108 */ 109#define SNDRV_SB_CSP_IOCTL_LOAD_CODE \ 110 _IOC(_IOC_WRITE, 'H', 0x11, sizeof(struct snd_sb_csp_microcode)) 111/* unload microcode from CSP */ 112#define SNDRV_SB_CSP_IOCTL_UNLOAD_CODE _IO('H', 0x12) 113/* start CSP */ 114#define SNDRV_SB_CSP_IOCTL_START _IOW('H', 0x13, struct snd_sb_csp_start) 115/* stop CSP */ 116#define SNDRV_SB_CSP_IOCTL_STOP _IO('H', 0x14) 117/* pause CSP and DMA transfer */ 118#define SNDRV_SB_CSP_IOCTL_PAUSE _IO('H', 0x15) 119/* restart CSP and DMA transfer */ 120#define SNDRV_SB_CSP_IOCTL_RESTART _IO('H', 0x16) 121 122 123#endif /* _UAPI__SOUND_SB16_CSP_H */