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 __SOUND_SB16_CSP_H 24 #define __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 */ 67 struct 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 */ 73 struct 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 */ 79 struct snd_sb_csp_start { 80 int sample_width; /* sample width, look above */ 81 int channels; /* channels, look above */ 82 }; 83 84 /* CSP information */ 85 struct 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 /* __SOUND_SB16_CSP_H */ 124