tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
1#ifndef __SOUND_SB16_CSP_H
2#define __SOUND_SB16_CSP_H
3
4/*
5 * Copyright (c) 1999 by Uros Bizjak <uros@kss-loka.si>
6 * Takashi Iwai <tiwai@suse.de>
7 *
8 * SB16ASP/AWE32 CSP control
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 *
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 */
66struct 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 */
72struct 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 */
78struct snd_sb_csp_start {
79 int sample_width; /* sample width, look above */
80 int channels; /* channels, look above */
81};
82
83/* CSP information */
84struct 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#define SNDRV_SB_CSP_IOCTL_LOAD_CODE _IOW('H', 0x11, struct snd_sb_csp_microcode)
103/* unload microcode from CSP */
104#define SNDRV_SB_CSP_IOCTL_UNLOAD_CODE _IO('H', 0x12)
105/* start CSP */
106#define SNDRV_SB_CSP_IOCTL_START _IOW('H', 0x13, struct snd_sb_csp_start)
107/* stop CSP */
108#define SNDRV_SB_CSP_IOCTL_STOP _IO('H', 0x14)
109/* pause CSP and DMA transfer */
110#define SNDRV_SB_CSP_IOCTL_PAUSE _IO('H', 0x15)
111/* restart CSP and DMA transfer */
112#define SNDRV_SB_CSP_IOCTL_RESTART _IO('H', 0x16)
113
114#ifdef __KERNEL__
115#include "sb.h"
116#include "hwdep.h"
117
118struct snd_sb_csp;
119
120/*
121 * CSP operators
122 */
123struct snd_sb_csp_ops {
124 int (*csp_use) (struct snd_sb_csp * p);
125 int (*csp_unuse) (struct snd_sb_csp * p);
126 int (*csp_autoload) (struct snd_sb_csp * p, int pcm_sfmt, int play_rec_mode);
127 int (*csp_start) (struct snd_sb_csp * p, int sample_width, int channels);
128 int (*csp_stop) (struct snd_sb_csp * p);
129 int (*csp_qsound_transfer) (struct snd_sb_csp * p);
130};
131
132/*
133 * CSP private data
134 */
135struct snd_sb_csp {
136 struct snd_sb *chip; /* SB16 DSP */
137 int used; /* usage flag - exclusive */
138 char codec_name[16]; /* name of codec */
139 unsigned short func_nr; /* function number */
140 unsigned int acc_format; /* accepted PCM formats */
141 int acc_channels; /* accepted channels */
142 int acc_width; /* accepted sample width */
143 int acc_rates; /* accepted sample rates */
144 int mode; /* MODE */
145 int run_channels; /* current CSP channels */
146 int run_width; /* current sample width */
147 int version; /* CSP version (0x10 - 0x1f) */
148 int running; /* running state */
149
150 struct snd_sb_csp_ops ops; /* operators */
151
152 spinlock_t q_lock; /* locking */
153 int q_enabled; /* enabled flag */
154 int qpos_left; /* left position */
155 int qpos_right; /* right position */
156 int qpos_changed; /* position changed flag */
157
158 struct snd_kcontrol *qsound_switch;
159 struct snd_kcontrol *qsound_space;
160
161 struct mutex access_mutex; /* locking */
162};
163
164int snd_sb_csp_new(struct snd_sb *chip, int device, struct snd_hwdep ** rhwdep);
165#endif
166
167#endif /* __SOUND_SB16_CSP */