1 #ifndef __SOUND_SB16_CSP_H
2 #define __SOUND_SB16_CSP_H
5 * Copyright (c) 1999 by Uros Bizjak <uros@kss-loka.si>
6 * Takashi Iwai <tiwai@suse.de>
8 * SB16ASP/AWE32 CSP control
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.
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.
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
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 */
33 #define SNDRV_SB_CSP_LOAD_FROMUSER 0x01
34 #define SNDRV_SB_CSP_LOAD_INITBLOCK 0x02
36 /* CSP sample width */
37 #define SNDRV_SB_CSP_SAMPLE_8BIT 0x01
38 #define SNDRV_SB_CSP_SAMPLE_16BIT 0x02
41 #define SNDRV_SB_CSP_MONO 0x01
42 #define SNDRV_SB_CSP_STEREO 0x02
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
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
59 /* maximum QSound value (180 degrees right) */
60 #define SNDRV_SB_CSP_QSOUND_MAX_RIGHT 0x20
62 /* maximum microcode RIFF file size */
63 #define SNDRV_SB_CSP_MAX_MICROCODE_FILE_SIZE 0x3000
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 */
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];
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 */
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 */
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.
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)
113 #define SNDRV_SB_CSP_IOCTL_START _IOW('H', 0x13, struct snd_sb_csp_start)
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)
124 #include <linux/firmware.h>
128 /* indices for the known CSP programs */
132 CSP_PROGRAM_ADPCM_INIT,
133 CSP_PROGRAM_ADPCM_PLAYBACK,
134 CSP_PROGRAM_ADPCM_CAPTURE,
142 struct snd_sb_csp_ops {
143 int (*csp_use) (struct snd_sb_csp * p);
144 int (*csp_unuse) (struct snd_sb_csp * p);
145 int (*csp_autoload) (struct snd_sb_csp * p, int pcm_sfmt, int play_rec_mode);
146 int (*csp_start) (struct snd_sb_csp * p, int sample_width, int channels);
147 int (*csp_stop) (struct snd_sb_csp * p);
148 int (*csp_qsound_transfer) (struct snd_sb_csp * p);
155 struct snd_sb *chip; /* SB16 DSP */
156 int used; /* usage flag - exclusive */
157 char codec_name[16]; /* name of codec */
158 unsigned short func_nr; /* function number */
159 unsigned int acc_format; /* accepted PCM formats */
160 int acc_channels; /* accepted channels */
161 int acc_width; /* accepted sample width */
162 int acc_rates; /* accepted sample rates */
164 int run_channels; /* current CSP channels */
165 int run_width; /* current sample width */
166 int version; /* CSP version (0x10 - 0x1f) */
167 int running; /* running state */
169 struct snd_sb_csp_ops ops; /* operators */
171 spinlock_t q_lock; /* locking */
172 int q_enabled; /* enabled flag */
173 int qpos_left; /* left position */
174 int qpos_right; /* right position */
175 int qpos_changed; /* position changed flag */
177 struct snd_kcontrol *qsound_switch;
178 struct snd_kcontrol *qsound_space;
180 struct mutex access_mutex; /* locking */
182 const struct firmware *csp_programs[CSP_PROGRAM_COUNT];
185 int snd_sb_csp_new(struct snd_sb *chip, int device, struct snd_hwdep ** rhwdep);
188 #endif /* __SOUND_SB16_CSP */