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 */
66 typedef struct snd_sb_csp_mc_header {
67 char codec_name[16]; /* id name of codec */
68 unsigned short func_req; /* requested function */
69 } snd_sb_csp_mc_header_t;
70
71 /* microcode to be loaded */
72 typedef struct snd_sb_csp_microcode {
73 snd_sb_csp_mc_header_t info;
74 unsigned char data[SNDRV_SB_CSP_MAX_MICROCODE_FILE_SIZE];
75 } snd_sb_csp_microcode_t;
76
77 /* start CSP with sample_width in mono/stereo */
78 typedef struct snd_sb_csp_start {
79 int sample_width; /* sample width, look above */
80 int channels; /* channels, look above */
81 } snd_sb_csp_start_t;
82
83 /* CSP information */
84 typedef 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 } snd_sb_csp_info_t;
97
98 /* HWDEP controls */
99 /* get CSP information */
100 #define SNDRV_SB_CSP_IOCTL_INFO _IOR('H', 0x10, snd_sb_csp_info_t)
101 /* load microcode to CSP */
102 #define SNDRV_SB_CSP_IOCTL_LOAD_CODE _IOW('H', 0x11, snd_sb_csp_microcode_t)
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, snd_sb_csp_start_t)
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
118 typedef struct snd_sb_csp snd_sb_csp_t;
119
120 /*
121 * CSP operators
122 */
123 typedef struct {
124 int (*csp_use) (snd_sb_csp_t * p);
125 int (*csp_unuse) (snd_sb_csp_t * p);
126 int (*csp_autoload) (snd_sb_csp_t * p, int pcm_sfmt, int play_rec_mode);
127 int (*csp_start) (snd_sb_csp_t * p, int sample_width, int channels);
128 int (*csp_stop) (snd_sb_csp_t * p);
129 int (*csp_qsound_transfer) (snd_sb_csp_t * p);
130 } snd_sb_csp_ops_t;
131
132 /*
133 * CSP private data
134 */
135 struct snd_sb_csp {
136 sb_t *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 snd_sb_csp_ops_t 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 snd_kcontrol_t *qsound_switch;
159 snd_kcontrol_t *qsound_space;
160
161 struct semaphore access_mutex; /* locking */
162 };
163
164 int snd_sb_csp_new(sb_t *chip, int device, snd_hwdep_t ** rhwdep);
165 #endif
166
167 #endif /* __SOUND_SB16_CSP */
168
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