include/linux/ac97_codec.h

   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_DAC_RATE      0x0032       /* PCM LR DAC 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 */
  40
  41 /* range 0x3c-0x58 - MODEM */
  42
  43 /* registers 0x005a - 0x007a are vendor reserved */
  44
  45 #define AC97_VENDOR_ID1           0x007c
  46 #define AC97_VENDOR_ID2           0x007e
  47
  48 /* volume control bit defines */
  49 #define AC97_MUTE                 0x8000
  50 #define AC97_MICBOOST             0x0040
  51 #define AC97_LEFTVOL              0x3f00
  52 #define AC97_RIGHTVOL             0x003f
  53
  54 /* record mux defines */
  55 #define AC97_RECMUX_MIC           0x0000
  56 #define AC97_RECMUX_CD            0x0101
  57 #define AC97_RECMUX_VIDEO         0x0202
  58 #define AC97_RECMUX_AUX           0x0303
  59 #define AC97_RECMUX_LINE          0x0404
  60 #define AC97_RECMUX_STEREO_MIX    0x0505
  61 #define AC97_RECMUX_MONO_MIX      0x0606
  62 #define AC97_RECMUX_PHONE         0x0707
  63
  64 /* general purpose register bit defines */
  65 #define AC97_GP_LPBK              0x0080       /* Loopback mode */
  66 #define AC97_GP_MS                0x0100       /* Mic Select 0=Mic1, 1=Mic2 */
  67 #define AC97_GP_MIX               0x0200       /* Mono output select 0=Mix, 1=Mic */
  68 #define AC97_GP_RLBK              0x0400       /* Remote Loopback - Modem line codec */
  69 #define AC97_GP_LLBK              0x0800       /* Local Loopback - Modem Line codec */
  70 #define AC97_GP_LD                0x1000       /* Loudness 1=on */
  71 #define AC97_GP_3D                0x2000       /* 3D Enhancement 1=on */
  72 #define AC97_GP_ST                0x4000       /* Stereo Enhancement 1=on */
  73 #define AC97_GP_POP               0x8000       /* Pcm Out Path, 0=pre 3D, 1=post 3D */
  74
  75 /* powerdown control and status bit defines */
  76
  77 /* status */
  78 #define AC97_PWR_MDM              0x0010       /* Modem section ready */
  79 #define AC97_PWR_REF              0x0008       /* Vref nominal */
  80 #define AC97_PWR_ANL              0x0004       /* Analog section ready */
  81 #define AC97_PWR_DAC              0x0002       /* DAC section ready */
  82 #define AC97_PWR_ADC              0x0001       /* ADC section ready */
  83
  84 /* control */
  85 #define AC97_PWR_PR0              0x0100       /* ADC and Mux powerdown */
  86 #define AC97_PWR_PR1              0x0200       /* DAC powerdown */
  87 #define AC97_PWR_PR2              0x0400       /* Output mixer powerdown (Vref on) */
  88 #define AC97_PWR_PR3              0x0800       /* Output mixer powerdown (Vref off) */
  89 #define AC97_PWR_PR4              0x1000       /* AC-link powerdown */
  90 #define AC97_PWR_PR5              0x2000       /* Internal Clk disable */
  91 #define AC97_PWR_PR6              0x4000       /* HP amp powerdown */
  92 #define AC97_PWR_PR7              0x8000       /* Modem off - if supported */
  93
  94 /* useful power states */
  95 #define AC97_PWR_D0               0x0000      /* everything on */
  96 #define AC97_PWR_D1              AC97_PWR_PR0|AC97_PWR_PR1|AC97_PWR_PR4
  97 #define AC97_PWR_D2              AC97_PWR_PR0|AC97_PWR_PR1|AC97_PWR_PR2|AC97_PWR_PR3|AC97_PWR_PR4
  98 #define AC97_PWR_D3              AC97_PWR_PR0|AC97_PWR_PR1|AC97_PWR_PR2|AC97_PWR_PR3|AC97_PWR_PR4
  99 #define AC97_PWR_ANLOFF          AC97_PWR_PR2|AC97_PWR_PR3  /* analog section off */
 100
 101 /* Total number of defined registers.  */
 102 #define AC97_REG_CNT 64
 103
 104
 105 /* OSS interface to the ac97s.. */
 106 #define AC97_STEREO_MASK (SOUND_MASK_VOLUME|SOUND_MASK_PCM|\
 107         SOUND_MASK_LINE|SOUND_MASK_CD|\
 108         SOUND_MASK_ALTPCM|SOUND_MASK_IGAIN|\
 109         SOUND_MASK_LINE1|SOUND_MASK_VIDEO)
 110
 111 #define AC97_SUPPORTED_MASK (AC97_STEREO_MASK | \
 112         SOUND_MASK_BASS|SOUND_MASK_TREBLE|\
 113         SOUND_MASK_SPEAKER|SOUND_MASK_MIC|\
 114         SOUND_MASK_PHONEIN|SOUND_MASK_PHONEOUT)
 115
 116 #define AC97_RECORD_MASK (SOUND_MASK_MIC|\
 117         SOUND_MASK_CD|SOUND_MASK_IGAIN|SOUND_MASK_VIDEO|\
 118         SOUND_MASK_LINE1| SOUND_MASK_LINE|\
 119         SOUND_MASK_PHONEIN)
 120
 121 #define supported_mixer(CODEC,FOO) ( CODEC->supported_mixers & (1<<FOO) )
 122
 123 struct ac97_codec {
 124         /* AC97 controller connected with */
 125         void *private_data;
 126
 127         char *name;
 128         int id;
 129         int dev_mixer;
 130
 131         /* codec specific init/reset routines, used mainly for 4 or 6 channel support */
 132         int  (*codec_init)  (struct ac97_codec *codec);
 133
 134         /* controller specific lower leverl ac97 accessing routines */
 135         u16  (*codec_read)  (struct ac97_codec *codec, u8 reg);
 136         void (*codec_write) (struct ac97_codec *codec, u8 reg, u16 val);
 137
 138         /* OSS mixer masks */
 139         int modcnt;
 140         int supported_mixers;
 141         int stereo_mixers;
 142         int record_sources;
 143
 144         /* OSS mixer interface */
 145         int  (*read_mixer) (struct ac97_codec *codec, int oss_channel);
 146         void (*write_mixer)(struct ac97_codec *codec, int oss_channel,
 147                             unsigned int left, unsigned int right);
 148         int  (*recmask_io) (struct ac97_codec *codec, int rw, int mask);
 149         int  (*mixer_ioctl)(struct ac97_codec *codec, unsigned int cmd, unsigned long arg);
 150
 151         /* saved OSS mixer states */
 152         unsigned int mixer_state[SOUND_MIXER_NRDEVICES];
 153 };
 154
 155 extern int ac97_read_proc (char *page_out, char **start, off_t off,
 156                            int count, int *eof, void *data);
 157 extern int ac97_probe_codec(struct ac97_codec *);
 158
 159 #endif /* _AC97_CODEC_H_ */