include/sound/sb16_csp.h

   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 */