LXR linux-bk/include/linux/ac97

   1#ifndef _AC97_CODEC_H_
   2#define _AC97_CODEC_H_
   3
   4#include <linux/types.h>
   5#include <linux/soundcard.h>
   6
   7/* AC97 1.0 */
   8#define  AC97_RESET               0x0000      //
   9#define  AC97_MASTER_VOL_STEREO   0x0002      // Line Out
  10#define  AC97_HEADPHONE_VOL       0x0004      // 
  11#define  AC97_MASTER_VOL_MONO     0x0006      // TAD Output
  12#define  AC97_MASTER_TONE         0x0008      //
  13#define  AC97_PCBEEP_VOL          0x000a      // none
  14#define  AC97_PHONE_VOL           0x000c      // TAD Input (mono)
  15#define  AC97_MIC_VOL             0x000e      // MIC Input (mono)
  16#define  AC97_LINEIN_VOL          0x0010      // Line Input (stereo)
  17#define  AC97_CD_VOL              0x0012      // CD Input (stereo)
  18#define  AC97_VIDEO_VOL           0x0014      // none
  19#define  AC97_AUX_VOL             0x0016      // Aux Input (stereo)
  20#define  AC97_PCMOUT_VOL          0x0018      // Wave Output (stereo)
  21#define  AC97_RECORD_SELECT       0x001a      //
  22#define  AC97_RECORD_GAIN         0x001c
  23#define  AC97_RECORD_GAIN_MIC     0x001e
  24#define  AC97_GENERAL_PURPOSE     0x0020
  25#define  AC97_3D_CONTROL          0x0022
  26#define  AC97_MODEM_RATE          0x0024
  27#define  AC97_POWER_CONTROL       0x0026
  28
  29/* AC'97 2.0 */
  30#define AC97_EXTENDED_ID          0x0028       /* Extended Audio ID */
  31#define AC97_EXTENDED_STATUS      0x002A       /* Extended Audio Status */
  32#define AC97_PCM_FRONT_DAC_RATE   0x002C       /* PCM Front DAC Rate */
  33#define AC97_PCM_SURR_DAC_RATE    0x002E       /* PCM Surround DAC Rate */
  34#define AC97_PCM_LFE_DAC_RATE     0x0030       /* PCM LFE DAC Rate */
  35#define AC97_PCM_LR_ADC_RATE      0x0032       /* PCM LR ADC Rate */
  36#define AC97_PCM_MIC_ADC_RATE     0x0034       /* PCM MIC ADC Rate */
  37#define AC97_CENTER_LFE_MASTER    0x0036       /* Center + LFE Master Volume */
  38#define AC97_SURROUND_MASTER      0x0038       /* Surround (Rear) Master Volume */
  39#define AC97_RESERVED_3A          0x003A       /* Reserved in AC '97 < 2.2 */
  40
  41/* AC'97 2.2 */
  42#define AC97_SPDIF_CONTROL        0x003A       /* S/PDIF Control */
  43
  44/* range 0x3c-0x58 - MODEM */
  45#define AC97_EXTENDED_MODEM_ID    0x003C
  46#define AC97_EXTEND_MODEM_STAT    0x003E
  47#define AC97_LINE1_RATE           0x0040
  48#define AC97_LINE2_RATE           0x0042
  49#define AC97_HANDSET_RATE         0x0044
  50#define AC97_LINE1_LEVEL          0x0046
  51#define AC97_LINE2_LEVEL          0x0048
  52#define AC97_HANDSET_LEVEL        0x004A
  53#define AC97_GPIO_CONFIG          0x004C
  54#define AC97_GPIO_POLARITY        0x004E
  55#define AC97_GPIO_STICKY          0x0050
  56#define AC97_GPIO_WAKE_UP         0x0052
  57#define AC97_GPIO_STATUS          0x0054
  58#define AC97_MISC_MODEM_STAT      0x0056
  59#define AC97_RESERVED_58          0x0058
  60
  61/* registers 0x005a - 0x007a are vendor reserved */
  62
  63#define AC97_VENDOR_ID1           0x007c
  64#define AC97_VENDOR_ID2           0x007e
  65
  66/* volume control bit defines */
  67#define AC97_MUTE                 0x8000
  68#define AC97_MICBOOST             0x0040
  69#define AC97_LEFTVOL              0x3f00
  70#define AC97_RIGHTVOL             0x003f
  71
  72/* record mux defines */
  73#define AC97_RECMUX_MIC           0x0000
  74#define AC97_RECMUX_CD            0x0101
  75#define AC97_RECMUX_VIDEO         0x0202
  76#define AC97_RECMUX_AUX           0x0303
  77#define AC97_RECMUX_LINE          0x0404
  78#define AC97_RECMUX_STEREO_MIX    0x0505
  79#define AC97_RECMUX_MONO_MIX      0x0606
  80#define AC97_RECMUX_PHONE         0x0707
  81
  82/* general purpose register bit defines */
  83#define AC97_GP_LPBK              0x0080       /* Loopback mode */
  84#define AC97_GP_MS                0x0100       /* Mic Select 0=Mic1, 1=Mic2 */
  85#define AC97_GP_MIX               0x0200       /* Mono output select 0=Mix, 1=Mic */
  86#define AC97_GP_RLBK              0x0400       /* Remote Loopback - Modem line codec */
  87#define AC97_GP_LLBK              0x0800       /* Local Loopback - Modem Line codec */
  88#define AC97_GP_LD                0x1000       /* Loudness 1=on */
  89#define AC97_GP_3D                0x2000       /* 3D Enhancement 1=on */
  90#define AC97_GP_ST                0x4000       /* Stereo Enhancement 1=on */
  91#define AC97_GP_POP               0x8000       /* Pcm Out Path, 0=pre 3D, 1=post 3D */
  92
  93/* extended audio status and control bit defines */
  94#define AC97_EA_VRA               0x0001       /* Variable bit rate enable bit */
  95#define AC97_EA_DRA               0x0002       /* Double-rate audio enable bit */
  96#define AC97_EA_SPDIF             0x0004       /* S/PDIF Enable bit */
  97#define AC97_EA_VRM               0x0008       /* Variable bit rate for MIC enable bit */
  98#define AC97_EA_CDAC              0x0040       /* PCM Center DAC is ready (Read only) */
  99#define AC97_EA_SDAC              0x0040       /* PCM Surround DACs are ready (Read only) */
 100#define AC97_EA_LDAC              0x0080       /* PCM LFE DAC is ready (Read only) */
 101#define AC97_EA_MDAC              0x0100       /* MIC ADC is ready (Read only) */
 102#define AC97_EA_SPCV              0x0400       /* S/PDIF configuration valid (Read only) */
 103#define AC97_EA_PRI               0x0800       /* Turns the PCM Center DAC off */
 104#define AC97_EA_PRJ               0x1000       /* Turns the PCM Surround DACs off */
 105#define AC97_EA_PRK               0x2000       /* Turns the PCM LFE DAC off */
 106#define AC97_EA_PRL               0x4000       /* Turns the MIC ADC off */
 107#define AC97_EA_SLOT_MASK         0xffcf       /* Mask for slot assignment bits */
 108#define AC97_EA_SPSA_3_4          0x0000       /* Slot assigned to 3 & 4 */
 109#define AC97_EA_SPSA_7_8          0x0010       /* Slot assigned to 7 & 8 */
 110#define AC97_EA_SPSA_6_9          0x0020       /* Slot assigned to 6 & 9 */
 111#define AC97_EA_SPSA_10_11        0x0030       /* Slot assigned to 10 & 11 */
 112
 113/* S/PDIF control bit defines */
 114#define AC97_SC_PRO               0x0001       /* Professional status */
 115#define AC97_SC_NAUDIO            0x0002       /* Non audio stream */
 116#define AC97_SC_COPY              0x0004       /* Copyright status */
 117#define AC97_SC_PRE               0x0008       /* Preemphasis status */
 118#define AC97_SC_CC_MASK           0x07f0       /* Category Code mask */
 119#define AC97_SC_L                 0x0800       /* Generation Level status */
 120#define AC97_SC_SPSR_MASK         0xcfff       /* S/PDIF Sample Rate bits */
 121#define AC97_SC_SPSR_44K          0x0000       /* Use 44.1kHz Sample rate */
 122#define AC97_SC_SPSR_48K          0x2000       /* Use 48kHz Sample rate */
 123#define AC97_SC_SPSR_32K          0x3000       /* Use 32kHz Sample rate */
 124#define AC97_SC_DRS               0x4000       /* Double Rate S/PDIF */
 125#define AC97_SC_V                 0x8000       /* Validity status */
 126
 127/* powerdown control and status bit defines */
 128
 129/* status */
 130#define AC97_PWR_MDM              0x0010       /* Modem section ready */
 131#define AC97_PWR_REF              0x0008       /* Vref nominal */
 132#define AC97_PWR_ANL              0x0004       /* Analog section ready */
 133#define AC97_PWR_DAC              0x0002       /* DAC section ready */
 134#define AC97_PWR_ADC              0x0001       /* ADC section ready */
 135
 136/* control */
 137#define AC97_PWR_PR0              0x0100       /* ADC and Mux powerdown */
 138#define AC97_PWR_PR1              0x0200       /* DAC powerdown */
 139#define AC97_PWR_PR2              0x0400       /* Output mixer powerdown (Vref on) */
 140#define AC97_PWR_PR3              0x0800       /* Output mixer powerdown (Vref off) */
 141#define AC97_PWR_PR4              0x1000       /* AC-link powerdown */
 142#define AC97_PWR_PR5              0x2000       /* Internal Clk disable */
 143#define AC97_PWR_PR6              0x4000       /* HP amp powerdown */
 144#define AC97_PWR_PR7              0x8000       /* Modem off - if supported */
 145
 146/* extended audio ID register bit defines */
 147#define AC97_EXTID_VRA            0x0001
 148#define AC97_EXTID_DRA            0x0002
 149#define AC97_EXTID_SPDIF          0x0004
 150#define AC97_EXTID_VRM            0x0008
 151#define AC97_EXTID_DSA0           0x0010
 152#define AC97_EXTID_DSA1           0x0020
 153#define AC97_EXTID_CDAC           0x0040
 154#define AC97_EXTID_SDAC           0x0080
 155#define AC97_EXTID_LDAC           0x0100
 156#define AC97_EXTID_AMAP           0x0200
 157#define AC97_EXTID_REV0           0x0400
 158#define AC97_EXTID_REV1           0x0800
 159#define AC97_EXTID_ID0            0x4000
 160#define AC97_EXTID_ID1            0x8000
 161
 162/* extended status register bit defines */
 163#define AC97_EXTSTAT_VRA          0x0001
 164#define AC97_EXTSTAT_DRA          0x0002
 165#define AC97_EXTSTAT_SPDIF        0x0004
 166#define AC97_EXTSTAT_VRM          0x0008
 167#define AC97_EXTSTAT_SPSA0        0x0010
 168#define AC97_EXTSTAT_SPSA1        0x0020
 169#define AC97_EXTSTAT_CDAC         0x0040
 170#define AC97_EXTSTAT_SDAC         0x0080
 171#define AC97_EXTSTAT_LDAC         0x0100
 172#define AC97_EXTSTAT_MADC         0x0200
 173#define AC97_EXTSTAT_SPCV         0x0400
 174#define AC97_EXTSTAT_PRI          0x0800
 175#define AC97_EXTSTAT_PRJ          0x1000
 176#define AC97_EXTSTAT_PRK          0x2000
 177#define AC97_EXTSTAT_PRL          0x4000
 178
 179/* useful power states */
 180#define AC97_PWR_D0               0x0000      /* everything on */
 181#define AC97_PWR_D1              AC97_PWR_PR0|AC97_PWR_PR1|AC97_PWR_PR4
 182#define AC97_PWR_D2              AC97_PWR_PR0|AC97_PWR_PR1|AC97_PWR_PR2|AC97_PWR_PR3|AC97_PWR_PR4
 183#define AC97_PWR_D3              AC97_PWR_PR0|AC97_PWR_PR1|AC97_PWR_PR2|AC97_PWR_PR3|AC97_PWR_PR4
 184#define AC97_PWR_ANLOFF          AC97_PWR_PR2|AC97_PWR_PR3  /* analog section off */
 185
 186/* Total number of defined registers.  */
 187#define AC97_REG_CNT 64
 188
 189
 190/* OSS interface to the ac97s.. */
 191#define AC97_STEREO_MASK (SOUND_MASK_VOLUME|SOUND_MASK_PCM|\
 192        SOUND_MASK_LINE|SOUND_MASK_CD|\
 193        SOUND_MASK_ALTPCM|SOUND_MASK_IGAIN|\
 194        SOUND_MASK_LINE1|SOUND_MASK_VIDEO)
 195
 196#define AC97_SUPPORTED_MASK (AC97_STEREO_MASK | \
 197        SOUND_MASK_BASS|SOUND_MASK_TREBLE|\
 198        SOUND_MASK_SPEAKER|SOUND_MASK_MIC|\
 199        SOUND_MASK_PHONEIN|SOUND_MASK_PHONEOUT)
 200
 201#define AC97_RECORD_MASK (SOUND_MASK_MIC|\
 202        SOUND_MASK_CD|SOUND_MASK_IGAIN|SOUND_MASK_VIDEO|\
 203        SOUND_MASK_LINE1| SOUND_MASK_LINE|\
 204        SOUND_MASK_PHONEIN)
 205
 206/* original check is not good enough in case FOO is greater than
 207 * SOUND_MIXER_NRDEVICES because the supported_mixers has exactly
 208 * SOUND_MIXER_NRDEVICES elements.
 209 * before matching the given mixer against the bitmask in supported_mixers we
 210 * check if mixer number exceeds maximum allowed size which is as mentioned
 211 * above SOUND_MIXER_NRDEVICES */
 212#define supported_mixer(CODEC,FOO) ((FOO >= 0) && \
 213                                    (FOO < SOUND_MIXER_NRDEVICES) && \
 214                                    (CODEC)->supported_mixers & (1<<FOO) )
 215
 216struct ac97_codec {
 217        /* Linked list of codecs */
 218        struct list_head list;
 219
 220        /* AC97 controller connected with */
 221        void *private_data;
 222
 223        char *name;
 224        int id;
 225        int dev_mixer; 
 226        int type;
 227        u32 model;
 228
 229        int modem:1;
 230
 231        struct ac97_ops *codec_ops;
 232
 233        /* controller specific lower leverl ac97 accessing routines.
 234           must be re-entrant safe */
 235        u16  (*codec_read)  (struct ac97_codec *codec, u8 reg);
 236        void (*codec_write) (struct ac97_codec *codec, u8 reg, u16 val);
 237
 238        /* Wait for codec-ready.  Ok to sleep here.  */
 239        void  (*codec_wait)  (struct ac97_codec *codec);
 240
 241        /* callback used by helper drivers for interesting ac97 setups */
 242        void  (*codec_unregister) (struct ac97_codec *codec);
 243        
 244        struct ac97_driver *driver;
 245        void *driver_private;   /* Private data for the driver */
 246        
 247        spinlock_t lock;
 248        
 249        /* OSS mixer masks */
 250        int modcnt;
 251        int supported_mixers;
 252        int stereo_mixers;
 253        int record_sources;
 254
 255        /* Property flags */
 256        int flags;
 257
 258        int bit_resolution;
 259
 260        /* OSS mixer interface */
 261        int  (*read_mixer) (struct ac97_codec *codec, int oss_channel);
 262        void (*write_mixer)(struct ac97_codec *codec, int oss_channel,
 263                            unsigned int left, unsigned int right);
 264        int  (*recmask_io) (struct ac97_codec *codec, int rw, int mask);
 265        int  (*mixer_ioctl)(struct ac97_codec *codec, unsigned int cmd, unsigned long arg);
 266
 267        /* saved OSS mixer states */
 268        unsigned int mixer_state[SOUND_MIXER_NRDEVICES];
 269
 270        /* Software Modem interface */
 271        int  (*modem_ioctl)(struct ac97_codec *codec, unsigned int cmd, unsigned long arg);
 272};
 273
 274/*
 275 *      Operation structures for each known AC97 chip
 276 */
 277 
 278struct ac97_ops
 279{
 280        /* Initialise */
 281        int (*init)(struct ac97_codec *c);
 282        /* Amplifier control */
 283        int (*amplifier)(struct ac97_codec *codec, int on);
 284        /* Digital mode control */
 285        int (*digital)(struct ac97_codec *codec, int slots, int rate, int mode);
 286#define AUDIO_DIGITAL           0x8000
 287#define AUDIO_PRO               0x4000
 288#define AUDIO_DRS               0x2000
 289#define AUDIO_CCMASK            0x003F
 290        
 291#define AC97_DELUDED_MODEM      1       /* Audio codec reports its a modem */
 292#define AC97_NO_PCM_VOLUME      2       /* Volume control is missing       */
 293};
 294
 295extern int ac97_read_proc (char *page_out, char **start, off_t off,
 296                           int count, int *eof, void *data);
 297extern int ac97_probe_codec(struct ac97_codec *);
 298extern unsigned int ac97_set_adc_rate(struct ac97_codec *codec, unsigned int rate);
 299extern unsigned int ac97_set_dac_rate(struct ac97_codec *codec, unsigned int rate);
 300extern int ac97_save_state(struct ac97_codec *codec);
 301extern int ac97_restore_state(struct ac97_codec *codec);
 302
 303extern struct ac97_codec *ac97_alloc_codec(void);
 304extern void ac97_release_codec(struct ac97_codec *codec);
 305
 306struct ac97_driver {
 307        struct list_head list;
 308        char *name;
 309        u32 codec_id;
 310        u32 codec_mask;
 311        int (*probe) (struct ac97_codec *codec, struct ac97_driver *driver);
 312        void (*remove) (struct ac97_codec *codec, struct ac97_driver *driver);
 313};
 314
 315extern int ac97_register_driver(struct ac97_driver *driver);
 316extern void ac97_unregister_driver(struct ac97_driver *driver);
 317
 318#endif /* _AC97_CODEC_H_ */
 319