/
sb16_csp.h
188 lines (161 loc) · 5.88 KB
/
sb16_csp.h
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
#ifndef __SOUND_SB16_CSP_H
#define __SOUND_SB16_CSP_H
/*
* Copyright (c) 1999 by Uros Bizjak <uros@kss-loka.si>
* Takashi Iwai <tiwai@suse.de>
*
* SB16ASP/AWE32 CSP control
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
/* CSP modes */
#define SNDRV_SB_CSP_MODE_NONE 0x00
#define SNDRV_SB_CSP_MODE_DSP_READ 0x01 /* Record from DSP */
#define SNDRV_SB_CSP_MODE_DSP_WRITE 0x02 /* Play to DSP */
#define SNDRV_SB_CSP_MODE_QSOUND 0x04 /* QSound */
/* CSP load flags */
#define SNDRV_SB_CSP_LOAD_FROMUSER 0x01
#define SNDRV_SB_CSP_LOAD_INITBLOCK 0x02
/* CSP sample width */
#define SNDRV_SB_CSP_SAMPLE_8BIT 0x01
#define SNDRV_SB_CSP_SAMPLE_16BIT 0x02
/* CSP channels */
#define SNDRV_SB_CSP_MONO 0x01
#define SNDRV_SB_CSP_STEREO 0x02
/* CSP rates */
#define SNDRV_SB_CSP_RATE_8000 0x01
#define SNDRV_SB_CSP_RATE_11025 0x02
#define SNDRV_SB_CSP_RATE_22050 0x04
#define SNDRV_SB_CSP_RATE_44100 0x08
#define SNDRV_SB_CSP_RATE_ALL 0x0f
/* CSP running state */
#define SNDRV_SB_CSP_ST_IDLE 0x00
#define SNDRV_SB_CSP_ST_LOADED 0x01
#define SNDRV_SB_CSP_ST_RUNNING 0x02
#define SNDRV_SB_CSP_ST_PAUSED 0x04
#define SNDRV_SB_CSP_ST_AUTO 0x08
#define SNDRV_SB_CSP_ST_QSOUND 0x10
/* maximum QSound value (180 degrees right) */
#define SNDRV_SB_CSP_QSOUND_MAX_RIGHT 0x20
/* maximum microcode RIFF file size */
#define SNDRV_SB_CSP_MAX_MICROCODE_FILE_SIZE 0x3000
/* microcode header */
struct snd_sb_csp_mc_header {
char codec_name[16]; /* id name of codec */
unsigned short func_req; /* requested function */
};
/* microcode to be loaded */
struct snd_sb_csp_microcode {
struct snd_sb_csp_mc_header info;
unsigned char data[SNDRV_SB_CSP_MAX_MICROCODE_FILE_SIZE];
};
/* start CSP with sample_width in mono/stereo */
struct snd_sb_csp_start {
int sample_width; /* sample width, look above */
int channels; /* channels, look above */
};
/* CSP information */
struct snd_sb_csp_info {
char codec_name[16]; /* id name of codec */
unsigned short func_nr; /* function number */
unsigned int acc_format; /* accepted PCM formats */
unsigned short acc_channels; /* accepted channels */
unsigned short acc_width; /* accepted sample width */
unsigned short acc_rates; /* accepted sample rates */
unsigned short csp_mode; /* CSP mode, see above */
unsigned short run_channels; /* current channels */
unsigned short run_width; /* current sample width */
unsigned short version; /* version id: 0x10 - 0x1f */
unsigned short state; /* state bits */
};
/* HWDEP controls */
/* get CSP information */
#define SNDRV_SB_CSP_IOCTL_INFO _IOR('H', 0x10, struct snd_sb_csp_info)
/* load microcode to CSP */
/* NOTE: struct snd_sb_csp_microcode overflows the max size (13 bits)
* defined for some architectures like MIPS, and it leads to build errors.
* (x86 and co have 14-bit size, thus it's valid, though.)
* As a workaround for skipping the size-limit check, here we don't use the
* normal _IOW() macro but _IOC() with the manual argument.
*/
#define SNDRV_SB_CSP_IOCTL_LOAD_CODE \
_IOC(_IOC_WRITE, 'H', 0x11, sizeof(struct snd_sb_csp_microcode))
/* unload microcode from CSP */
#define SNDRV_SB_CSP_IOCTL_UNLOAD_CODE _IO('H', 0x12)
/* start CSP */
#define SNDRV_SB_CSP_IOCTL_START _IOW('H', 0x13, struct snd_sb_csp_start)
/* stop CSP */
#define SNDRV_SB_CSP_IOCTL_STOP _IO('H', 0x14)
/* pause CSP and DMA transfer */
#define SNDRV_SB_CSP_IOCTL_PAUSE _IO('H', 0x15)
/* restart CSP and DMA transfer */
#define SNDRV_SB_CSP_IOCTL_RESTART _IO('H', 0x16)
#ifdef __KERNEL__
#include "sb.h"
#include "hwdep.h"
#include <linux/firmware.h>
struct snd_sb_csp;
/* indices for the known CSP programs */
enum {
CSP_PROGRAM_MULAW,
CSP_PROGRAM_ALAW,
CSP_PROGRAM_ADPCM_INIT,
CSP_PROGRAM_ADPCM_PLAYBACK,
CSP_PROGRAM_ADPCM_CAPTURE,
CSP_PROGRAM_COUNT
};
/*
* CSP operators
*/
struct snd_sb_csp_ops {
int (*csp_use) (struct snd_sb_csp * p);
int (*csp_unuse) (struct snd_sb_csp * p);
int (*csp_autoload) (struct snd_sb_csp * p, int pcm_sfmt, int play_rec_mode);
int (*csp_start) (struct snd_sb_csp * p, int sample_width, int channels);
int (*csp_stop) (struct snd_sb_csp * p);
int (*csp_qsound_transfer) (struct snd_sb_csp * p);
};
/*
* CSP private data
*/
struct snd_sb_csp {
struct snd_sb *chip; /* SB16 DSP */
int used; /* usage flag - exclusive */
char codec_name[16]; /* name of codec */
unsigned short func_nr; /* function number */
unsigned int acc_format; /* accepted PCM formats */
int acc_channels; /* accepted channels */
int acc_width; /* accepted sample width */
int acc_rates; /* accepted sample rates */
int mode; /* MODE */
int run_channels; /* current CSP channels */
int run_width; /* current sample width */
int version; /* CSP version (0x10 - 0x1f) */
int running; /* running state */
struct snd_sb_csp_ops ops; /* operators */
spinlock_t q_lock; /* locking */
int q_enabled; /* enabled flag */
int qpos_left; /* left position */
int qpos_right; /* right position */
int qpos_changed; /* position changed flag */
struct snd_kcontrol *qsound_switch;
struct snd_kcontrol *qsound_space;
struct mutex access_mutex; /* locking */
const struct firmware *csp_programs[CSP_PROGRAM_COUNT];
};
int snd_sb_csp_new(struct snd_sb *chip, int device, struct snd_hwdep ** rhwdep);
#endif
#endif /* __SOUND_SB16_CSP */