| David Howells | 674e95c | 2012-10-09 09:49:13 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 1999 by Uros Bizjak <uros@kss-loka.si> |
| 3 | * Takashi Iwai <tiwai@suse.de> |
| 4 | * |
| 5 | * SB16ASP/AWE32 CSP control |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License as published by |
| 9 | * the Free Software Foundation; either version 2 of the License, or |
| 10 | * (at your option) any later version. |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | * GNU General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License |
| 18 | * along with this program; if not, write to the Free Software |
| 19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 20 | * |
| 21 | */ |
| 22 | #ifndef _UAPI__SOUND_SB16_CSP_H |
| 23 | #define _UAPI__SOUND_SB16_CSP_H |
| 24 | |
| 25 | |
| 26 | /* CSP modes */ |
| 27 | #define SNDRV_SB_CSP_MODE_NONE 0x00 |
| 28 | #define SNDRV_SB_CSP_MODE_DSP_READ 0x01 /* Record from DSP */ |
| 29 | #define SNDRV_SB_CSP_MODE_DSP_WRITE 0x02 /* Play to DSP */ |
| 30 | #define SNDRV_SB_CSP_MODE_QSOUND 0x04 /* QSound */ |
| 31 | |
| 32 | /* CSP load flags */ |
| 33 | #define SNDRV_SB_CSP_LOAD_FROMUSER 0x01 |
| 34 | #define SNDRV_SB_CSP_LOAD_INITBLOCK 0x02 |
| 35 | |
| 36 | /* CSP sample width */ |
| 37 | #define SNDRV_SB_CSP_SAMPLE_8BIT 0x01 |
| 38 | #define SNDRV_SB_CSP_SAMPLE_16BIT 0x02 |
| 39 | |
| 40 | /* CSP channels */ |
| 41 | #define SNDRV_SB_CSP_MONO 0x01 |
| 42 | #define SNDRV_SB_CSP_STEREO 0x02 |
| 43 | |
| 44 | /* CSP rates */ |
| 45 | #define SNDRV_SB_CSP_RATE_8000 0x01 |
| 46 | #define SNDRV_SB_CSP_RATE_11025 0x02 |
| 47 | #define SNDRV_SB_CSP_RATE_22050 0x04 |
| 48 | #define SNDRV_SB_CSP_RATE_44100 0x08 |
| 49 | #define SNDRV_SB_CSP_RATE_ALL 0x0f |
| 50 | |
| 51 | /* CSP running state */ |
| 52 | #define SNDRV_SB_CSP_ST_IDLE 0x00 |
| 53 | #define SNDRV_SB_CSP_ST_LOADED 0x01 |
| 54 | #define SNDRV_SB_CSP_ST_RUNNING 0x02 |
| 55 | #define SNDRV_SB_CSP_ST_PAUSED 0x04 |
| 56 | #define SNDRV_SB_CSP_ST_AUTO 0x08 |
| 57 | #define SNDRV_SB_CSP_ST_QSOUND 0x10 |
| 58 | |
| 59 | /* maximum QSound value (180 degrees right) */ |
| 60 | #define SNDRV_SB_CSP_QSOUND_MAX_RIGHT 0x20 |
| 61 | |
| 62 | /* maximum microcode RIFF file size */ |
| 63 | #define SNDRV_SB_CSP_MAX_MICROCODE_FILE_SIZE 0x3000 |
| 64 | |
| 65 | /* microcode header */ |
| 66 | struct snd_sb_csp_mc_header { |
| 67 | char codec_name[16]; /* id name of codec */ |
| 68 | unsigned short func_req; /* requested function */ |
| 69 | }; |
| 70 | |
| 71 | /* microcode to be loaded */ |
| 72 | struct snd_sb_csp_microcode { |
| 73 | struct snd_sb_csp_mc_header info; |
| 74 | unsigned char data[SNDRV_SB_CSP_MAX_MICROCODE_FILE_SIZE]; |
| 75 | }; |
| 76 | |
| 77 | /* start CSP with sample_width in mono/stereo */ |
| 78 | struct snd_sb_csp_start { |
| 79 | int sample_width; /* sample width, look above */ |
| 80 | int channels; /* channels, look above */ |
| 81 | }; |
| 82 | |
| 83 | /* CSP information */ |
| 84 | struct snd_sb_csp_info { |
| 85 | char codec_name[16]; /* id name of codec */ |
| 86 | unsigned short func_nr; /* function number */ |
| 87 | unsigned int acc_format; /* accepted PCM formats */ |
| 88 | unsigned short acc_channels; /* accepted channels */ |
| 89 | unsigned short acc_width; /* accepted sample width */ |
| 90 | unsigned short acc_rates; /* accepted sample rates */ |
| 91 | unsigned short csp_mode; /* CSP mode, see above */ |
| 92 | unsigned short run_channels; /* current channels */ |
| 93 | unsigned short run_width; /* current sample width */ |
| 94 | unsigned short version; /* version id: 0x10 - 0x1f */ |
| 95 | unsigned short state; /* state bits */ |
| 96 | }; |
| 97 | |
| 98 | /* HWDEP controls */ |
| 99 | /* get CSP information */ |
| 100 | #define SNDRV_SB_CSP_IOCTL_INFO _IOR('H', 0x10, struct snd_sb_csp_info) |
| 101 | /* load microcode to CSP */ |
| 102 | /* NOTE: struct snd_sb_csp_microcode overflows the max size (13 bits) |
| 103 | * defined for some architectures like MIPS, and it leads to build errors. |
| 104 | * (x86 and co have 14-bit size, thus it's valid, though.) |
| 105 | * As a workaround for skipping the size-limit check, here we don't use the |
| 106 | * normal _IOW() macro but _IOC() with the manual argument. |
| 107 | */ |
| 108 | #define SNDRV_SB_CSP_IOCTL_LOAD_CODE \ |
| 109 | _IOC(_IOC_WRITE, 'H', 0x11, sizeof(struct snd_sb_csp_microcode)) |
| 110 | /* unload microcode from CSP */ |
| 111 | #define SNDRV_SB_CSP_IOCTL_UNLOAD_CODE _IO('H', 0x12) |
| 112 | /* start CSP */ |
| 113 | #define SNDRV_SB_CSP_IOCTL_START _IOW('H', 0x13, struct snd_sb_csp_start) |
| 114 | /* stop CSP */ |
| 115 | #define SNDRV_SB_CSP_IOCTL_STOP _IO('H', 0x14) |
| 116 | /* pause CSP and DMA transfer */ |
| 117 | #define SNDRV_SB_CSP_IOCTL_PAUSE _IO('H', 0x15) |
| 118 | /* restart CSP and DMA transfer */ |
| 119 | #define SNDRV_SB_CSP_IOCTL_RESTART _IO('H', 0x16) |
| 120 | |
| 121 | |
| 122 | #endif /* _UAPI__SOUND_SB16_CSP_H */ |