diff options
Diffstat (limited to 'include/linux/ac97_codec.h')
| -rw-r--r-- | include/linux/ac97_codec.h | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/include/linux/ac97_codec.h b/include/linux/ac97_codec.h new file mode 100644 index 000000000..68989d76d --- /dev/null +++ b/include/linux/ac97_codec.h @@ -0,0 +1,159 @@ +#ifndef _AC97_CODEC_H_ +#define _AC97_CODEC_H_ + + +/* AC97 1.0 */ +#define AC97_RESET 0x0000 // +#define AC97_MASTER_VOL_STEREO 0x0002 // Line Out +#define AC97_HEADPHONE_VOL 0x0004 // +#define AC97_MASTER_VOL_MONO 0x0006 // TAD Output +#define AC97_MASTER_TONE 0x0008 // +#define AC97_PCBEEP_VOL 0x000a // none +#define AC97_PHONE_VOL 0x000c // TAD Input (mono) +#define AC97_MIC_VOL 0x000e // MIC Input (mono) +#define AC97_LINEIN_VOL 0x0010 // Line Input (stereo) +#define AC97_CD_VOL 0x0012 // CD Input (stereo) +#define AC97_VIDEO_VOL 0x0014 // none +#define AC97_AUX_VOL 0x0016 // Aux Input (stereo) +#define AC97_PCMOUT_VOL 0x0018 // Wave Output (stereo) +#define AC97_RECORD_SELECT 0x001a // +#define AC97_RECORD_GAIN 0x001c +#define AC97_RECORD_GAIN_MIC 0x001e +#define AC97_GENERAL_PURPOSE 0x0020 +#define AC97_3D_CONTROL 0x0022 +#define AC97_MODEM_RATE 0x0024 +#define AC97_POWER_CONTROL 0x0026 + +/* AC'97 2.0 */ +#define AC97_EXTENDED_ID 0x0028 /* Extended Audio ID */ +#define AC97_EXTENDED_STATUS 0x002A /* Extended Audio Status */ +#define AC97_PCM_FRONT_DAC_RATE 0x002C /* PCM Front DAC Rate */ +#define AC97_PCM_SURR_DAC_RATE 0x002E /* PCM Surround DAC Rate */ +#define AC97_PCM_LFE_DAC_RATE 0x0030 /* PCM LFE DAC Rate */ +#define AC97_PCM_LR_DAC_RATE 0x0032 /* PCM LR DAC Rate */ +#define AC97_PCM_MIC_ADC_RATE 0x0034 /* PCM MIC ADC Rate */ +#define AC97_CENTER_LFE_MASTER 0x0036 /* Center + LFE Master Volume */ +#define AC97_SURROUND_MASTER 0x0038 /* Surround (Rear) Master Volume */ +#define AC97_RESERVED_3A 0x003A /* Reserved */ + +/* range 0x3c-0x58 - MODEM */ + +/* registers 0x005a - 0x007a are vendor reserved */ + +#define AC97_VENDOR_ID1 0x007c +#define AC97_VENDOR_ID2 0x007e + +/* volume control bit defines */ +#define AC97_MUTE 0x8000 +#define AC97_MICBOOST 0x0040 +#define AC97_LEFTVOL 0x3f00 +#define AC97_RIGHTVOL 0x003f + +/* record mux defines */ +#define AC97_RECMUX_MIC 0x0000 +#define AC97_RECMUX_CD 0x0101 +#define AC97_RECMUX_VIDEO 0x0202 /* not used */ +#define AC97_RECMUX_AUX 0x0303 +#define AC97_RECMUX_LINE 0x0404 +#define AC97_RECMUX_STEREO_MIX 0x0505 +#define AC97_RECMUX_MONO_MIX 0x0606 +#define AC97_RECMUX_PHONE 0x0707 + + +/* general purpose register bit defines */ +#define AC97_GP_LPBK 0x0080 /* Loopback mode */ +#define AC97_GP_MS 0x0100 /* Mic Select 0=Mic1, 1=Mic2 */ +#define AC97_GP_MIX 0x0200 /* Mono output select 0=Mix, 1=Mic */ +#define AC97_GP_RLBK 0x0400 /* Remote Loopback - Modem line codec */ +#define AC97_GP_LLBK 0x0800 /* Local Loopback - Modem Line codec */ +#define AC97_GP_LD 0x1000 /* Loudness 1=on */ +#define AC97_GP_3D 0x2000 /* 3D Enhancement 1=on */ +#define AC97_GP_ST 0x4000 /* Stereo Enhancement 1=on */ +#define AC97_GP_POP 0x8000 /* Pcm Out Path, 0=pre 3D, 1=post 3D */ + + +/* powerdown control and status bit defines */ + +/* status */ +#define AC97_PWR_MDM 0x0010 /* Modem section ready */ +#define AC97_PWR_REF 0x0008 /* Vref nominal */ +#define AC97_PWR_ANL 0x0004 /* Analog section ready */ +#define AC97_PWR_DAC 0x0002 /* DAC section ready */ +#define AC97_PWR_ADC 0x0001 /* ADC section ready */ + +/* control */ +#define AC97_PWR_PR0 0x0100 /* ADC and Mux powerdown */ +#define AC97_PWR_PR1 0x0200 /* DAC powerdown */ +#define AC97_PWR_PR2 0x0400 /* Output mixer powerdown (Vref on) */ +#define AC97_PWR_PR3 0x0800 /* Output mixer powerdown (Vref off) */ +#define AC97_PWR_PR4 0x1000 /* AC-link powerdown */ +#define AC97_PWR_PR5 0x2000 /* Internal Clk disable */ +#define AC97_PWR_PR6 0x4000 /* HP amp powerdown */ +#define AC97_PWR_PR7 0x8000 /* Modem off - if supported */ + +/* useful power states */ +#define AC97_PWR_D0 0x0000 /* everything on */ +#define AC97_PWR_D1 AC97_PWR_PR0|AC97_PWR_PR1|AC97_PWR_PR4 +#define AC97_PWR_D2 AC97_PWR_PR0|AC97_PWR_PR1|AC97_PWR_PR2|AC97_PWR_PR3|AC97_PWR_PR4 +#define AC97_PWR_D3 AC97_PWR_PR0|AC97_PWR_PR1|AC97_PWR_PR2|AC97_PWR_PR3|AC97_PWR_PR4 +#define AC97_PWR_ANLOFF AC97_PWR_PR2|AC97_PWR_PR3 /* analog section off */ + +/* Total number of defined registers. */ +#define AC97_REG_CNT 64 + + +/* OSS interface to the ac97s.. */ +#define AC97_STEREO_MASK (SOUND_MASK_VOLUME|SOUND_MASK_PCM|\ + SOUND_MASK_LINE|SOUND_MASK_CD|\ + SOUND_MASK_ALTPCM|SOUND_MASK_IGAIN|\ + SOUND_MASK_LINE1|SOUND_MASK_VIDEO) + +#define AC97_SUPPORTED_MASK (AC97_STEREO_MASK | \ + SOUND_MASK_BASS|SOUND_MASK_TREBLE|\ + SOUND_MASK_SPEAKER|SOUND_MASK_MIC|\ + SOUND_MASK_PHONEIN|SOUND_MASK_PHONEOUT) + +#define AC97_RECORD_MASK (SOUND_MASK_MIC|\ + SOUND_MASK_CD|SOUND_MASK_VIDEO|\ + SOUND_MASK_LINE1| SOUND_MASK_LINE|\ + SOUND_MASK_PHONEIN) + +#define supported_mixer(CODEC,FOO) ( CODEC->supported_mixers & (1<<FOO) ) + +struct ac97_codec { + /* AC97 controller connected with */ + void *private_data; + + char *name; + int id; + int dev_mixer; + + /* codec specific init/reset routines, used mainly for 4 or 6 channel support */ + int (*codec_init) (struct ac97_codec *codec); + + /* controller specific lower leverl ac97 accessing routines */ + u16 (*codec_read) (struct ac97_codec *codec, u8 reg); + void (*codec_write) (struct ac97_codec *codec, u8 reg, u16 val); + + /* OSS mixer masks */ + int modcnt; + int supported_mixers; + int stereo_mixers; + int record_sources; + + /* OSS mixer interface */ + int (*read_mixer) (struct ac97_codec *codec, int oss_channel); + void (*write_mixer)(struct ac97_codec *codec, int oss_channel, + unsigned int left, unsigned int right); + int (*recmask_io) (struct ac97_codec *codec, int rw, int mask); + int (*mixer_ioctl)(struct ac97_codec *codec, unsigned int cmd, unsigned long arg); + + /* saved OSS mixer states */ + unsigned int mixer_state[SOUND_MIXER_NRDEVICES]; +}; + +extern int ac97_read_proc (char *page_out, char **start, off_t off, + int count, int *eof, void *data); +extern int ac97_probe_codec(struct ac97_codec *); + +#endif /* _AC97_CODEC_H_ */ |