drivers/audio/AC97.h

   1 #ifndef AC97_MIXER_H
   2 #define AC97_MIXER_H
   3
   4 /* This is a main memory cache copy of the codec's ac97 configuration
   5    registers. See Intel's Audio Codec 97 standard (rev2.3) for info. */
   6
   7 typedef struct ac97_struct {
   8   u16_t Reset;                    /* 0x00 */
   9   u16_t MasterVolume;             /* 0x02 */
  10   u16_t AUXOutVolume;             /* 0x04 */
  11   u16_t MonoVolume;               /* 0x06 */
  12   u16_t MasterTone;               /* 0x08 */
  13   u16_t PCBeepVolume;             /* 0x0A */
  14   u16_t PhoneVolume;              /* 0x0C */
  15   u16_t MicVolume;                /* 0x0E */
  16   u16_t LineInVolume;             /* 0x10 */
  17   u16_t CDVolume;                 /* 0x12 */
  18   u16_t VideoVolume;              /* 0x14 */
  19   u16_t AUXInVolume;              /* 0x16 */
  20   u16_t PCMOutVolume;             /* 0x18 */
  21   u16_t RecordSelect;             /* 0x1A */
  22   u16_t RecordGain;               /* 0x1C */
  23   u16_t RecordGainMic;            /* 0x1E */
  24   u16_t GeneralPurpose;           /* 0x20 */
  25   u16_t Control3D;                /* 0x22 */
  26   u16_t AudioIntAndPaging;        /* 0x24 */
  27   u16_t PowerdownControlAndStat;  /* 0x26 */
  28   u16_t ExtendedAudio1;           /* 0x28 */
  29   u16_t ExtendedAudio2;           /* 0x2A */
  30                                   /* ...  */
  31   u16_t VendorID1;                /* 0x7C */
  32   u16_t VendorID2;                /* 0x7E */
  33 } ac97_t;
  34
  35
  36
  37 /* Source and output volume control register defines */
  38 #define AC97_MASTER_VOLUME        0x02U   /* Master out */
  39 #define AC97_AUX_OUT_VOLUME       0x04U   /* Auxiliary out volume */
  40 #define AC97_MONO_VOLUME          0x06U   /* Mono out volume */
  41 #define AC97_MASTER_TONE          0x08U   /* high byte= bass, low byte= treble*/
  42 #define AC97_PC_BEEP_VOLUME       0x0aU   /* PC speaker volume */
  43 #define AC97_PHONE_VOLUME         0x0cU   /* Phone volume */
  44 #define AC97_MIC_VOLUME           0x0eU   /* Mic, mono */
  45 #define AC97_LINE_IN_VOLUME       0x10U   /* Line volume */
  46 #define AC97_CD_VOLUME            0x12U   /* CD audio volume */
  47 #define AC97_VIDEO_VOLUME         0x14U   /* Video (TV) volume */
  48 #define AC97_AUX_IN_VOLUME        0x16U   /* Aux line source, left */
  49 #define AC97_PCM_OUT_VOLUME       0x18U   /* The DACs - wav+synth */
  50 #define AC97_RECORD_GAIN_VOLUME   0x1cU   /* Record input level */
  51
  52 /* Other CODEC control register defines */
  53 #define AC97_RESET                     0x00U   /* any write here to reset CODEC */
  54 #define AC97_GENERAL_PURPOSE           0x20U   /*  */
  55 #define AC97_POWERDOWN_CONTROL_STAT    0x26U   /*  */
  56 #define AC97_RECORD_SELECT             0x1aU   /* record mux select */
  57 #define AC97_VENDOR_ID1                0x7cU   /* 1st two Vendor ID bytes */
  58 #define AC97_VENDOR_ID2                0x7eU   /* last Vendor ID byte plus rev. number */
  59
  60 /* Record Select defines */
  61 #define AC97_RECORD_MIC         0
  62 #define AC97_RECORD_CD          1
  63 #define AC97_RECORD_VIDEO       2
  64 #define AC97_RECORD_AUX         3
  65 #define AC97_RECORD_LINE        4
  66 #define AC97_RECORD_STEREO_MIX  5
  67 #define AC97_RECORD_MONO_MIX    6
  68 #define AC97_RECORD_PHONE       7
  69
  70 #define MASTER_VOL_MASK     0x1F
  71 #define DAC_VOL_MASK        0x1F
  72 #define AUX_IN_VOL_MASK     0x1F
  73 #define MUTE_MASK           0x8000
  74 #endif  /* AC97_MIXER_H */