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123 lines
4.2 KiB
123 lines
4.2 KiB
/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ |
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/* |
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* Copyright (c) 1999 by Uros Bizjak <[email protected]> |
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* Takashi Iwai <[email protected]> |
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* |
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* SB16ASP/AWE32 CSP control |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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* |
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*/ |
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#ifndef _UAPI__SOUND_SB16_CSP_H |
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#define _UAPI__SOUND_SB16_CSP_H |
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/* CSP modes */ |
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#define SNDRV_SB_CSP_MODE_NONE 0x00 |
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#define SNDRV_SB_CSP_MODE_DSP_READ 0x01 /* Record from DSP */ |
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#define SNDRV_SB_CSP_MODE_DSP_WRITE 0x02 /* Play to DSP */ |
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#define SNDRV_SB_CSP_MODE_QSOUND 0x04 /* QSound */ |
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/* CSP load flags */ |
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#define SNDRV_SB_CSP_LOAD_FROMUSER 0x01 |
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#define SNDRV_SB_CSP_LOAD_INITBLOCK 0x02 |
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/* CSP sample width */ |
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#define SNDRV_SB_CSP_SAMPLE_8BIT 0x01 |
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#define SNDRV_SB_CSP_SAMPLE_16BIT 0x02 |
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/* CSP channels */ |
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#define SNDRV_SB_CSP_MONO 0x01 |
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#define SNDRV_SB_CSP_STEREO 0x02 |
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/* CSP rates */ |
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#define SNDRV_SB_CSP_RATE_8000 0x01 |
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#define SNDRV_SB_CSP_RATE_11025 0x02 |
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#define SNDRV_SB_CSP_RATE_22050 0x04 |
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#define SNDRV_SB_CSP_RATE_44100 0x08 |
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#define SNDRV_SB_CSP_RATE_ALL 0x0f |
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/* CSP running state */ |
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#define SNDRV_SB_CSP_ST_IDLE 0x00 |
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#define SNDRV_SB_CSP_ST_LOADED 0x01 |
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#define SNDRV_SB_CSP_ST_RUNNING 0x02 |
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#define SNDRV_SB_CSP_ST_PAUSED 0x04 |
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#define SNDRV_SB_CSP_ST_AUTO 0x08 |
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#define SNDRV_SB_CSP_ST_QSOUND 0x10 |
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/* maximum QSound value (180 degrees right) */ |
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#define SNDRV_SB_CSP_QSOUND_MAX_RIGHT 0x20 |
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/* maximum microcode RIFF file size */ |
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#define SNDRV_SB_CSP_MAX_MICROCODE_FILE_SIZE 0x3000 |
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/* microcode header */ |
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struct snd_sb_csp_mc_header { |
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char codec_name[16]; /* id name of codec */ |
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unsigned short func_req; /* requested function */ |
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}; |
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/* microcode to be loaded */ |
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struct snd_sb_csp_microcode { |
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struct snd_sb_csp_mc_header info; |
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unsigned char data[SNDRV_SB_CSP_MAX_MICROCODE_FILE_SIZE]; |
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}; |
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/* start CSP with sample_width in mono/stereo */ |
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struct snd_sb_csp_start { |
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int sample_width; /* sample width, look above */ |
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int channels; /* channels, look above */ |
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}; |
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/* CSP information */ |
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struct snd_sb_csp_info { |
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char codec_name[16]; /* id name of codec */ |
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unsigned short func_nr; /* function number */ |
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unsigned int acc_format; /* accepted PCM formats */ |
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unsigned short acc_channels; /* accepted channels */ |
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unsigned short acc_width; /* accepted sample width */ |
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unsigned short acc_rates; /* accepted sample rates */ |
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unsigned short csp_mode; /* CSP mode, see above */ |
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unsigned short run_channels; /* current channels */ |
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unsigned short run_width; /* current sample width */ |
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unsigned short version; /* version id: 0x10 - 0x1f */ |
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unsigned short state; /* state bits */ |
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}; |
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/* HWDEP controls */ |
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/* get CSP information */ |
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#define SNDRV_SB_CSP_IOCTL_INFO _IOR('H', 0x10, struct snd_sb_csp_info) |
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/* load microcode to CSP */ |
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/* NOTE: struct snd_sb_csp_microcode overflows the max size (13 bits) |
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* defined for some architectures like MIPS, and it leads to build errors. |
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* (x86 and co have 14-bit size, thus it's valid, though.) |
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* As a workaround for skipping the size-limit check, here we don't use the |
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* normal _IOW() macro but _IOC() with the manual argument. |
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*/ |
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#define SNDRV_SB_CSP_IOCTL_LOAD_CODE \ |
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_IOC(_IOC_WRITE, 'H', 0x11, sizeof(struct snd_sb_csp_microcode)) |
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/* unload microcode from CSP */ |
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#define SNDRV_SB_CSP_IOCTL_UNLOAD_CODE _IO('H', 0x12) |
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/* start CSP */ |
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#define SNDRV_SB_CSP_IOCTL_START _IOW('H', 0x13, struct snd_sb_csp_start) |
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/* stop CSP */ |
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#define SNDRV_SB_CSP_IOCTL_STOP _IO('H', 0x14) |
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/* pause CSP and DMA transfer */ |
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#define SNDRV_SB_CSP_IOCTL_PAUSE _IO('H', 0x15) |
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/* restart CSP and DMA transfer */ |
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#define SNDRV_SB_CSP_IOCTL_RESTART _IO('H', 0x16) |
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#endif /* _UAPI__SOUND_SB16_CSP_H */
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