ac97_codec.h
上传用户:lgb322
上传日期:2013-02-24
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- #ifndef _AC97_CODEC_H_
- #define _AC97_CODEC_H_
- #include <linux/types.h>
- #include <linux/soundcard.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_ADC_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 in AC '97 < 2.2 */
- /* AC'97 2.2 */
- #define AC97_SPDIF_CONTROL 0x003A /* S/PDIF Control */
- /* range 0x3c-0x58 - MODEM */
- #define AC97_EXTENDED_MODEM_ID 0x003C
- #define AC97_EXTEND_MODEM_STAT 0x003E
- #define AC97_LINE1_RATE 0x0040
- #define AC97_LINE2_RATE 0x0042
- #define AC97_HANDSET_RATE 0x0044
- #define AC97_LINE1_LEVEL 0x0046
- #define AC97_LINE2_LEVEL 0x0048
- #define AC97_HANDSET_LEVEL 0x004A
- #define AC97_GPIO_CONFIG 0x004C
- #define AC97_GPIO_POLARITY 0x004E
- #define AC97_GPIO_STICKY 0x0050
- #define AC97_GPIO_WAKE_UP 0x0052
- #define AC97_GPIO_STATUS 0x0054
- #define AC97_MISC_MODEM_STAT 0x0056
- #define AC97_RESERVED_58 0x0058
- /* 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
- #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 */
- /* extended audio status and control bit defines */
- #define AC97_EA_VRA 0x0001 /* Variable bit rate enable bit */
- #define AC97_EA_DRA 0x0002 /* Double-rate audio enable bit */
- #define AC97_EA_SPDIF 0x0004 /* S/PDIF Enable bit */
- #define AC97_EA_VRM 0x0008 /* Variable bit rate for MIC enable bit */
- #define AC97_EA_CDAC 0x0040 /* PCM Center DAC is ready (Read only) */
- #define AC97_EA_SDAC 0x0040 /* PCM Surround DACs are ready (Read only) */
- #define AC97_EA_LDAC 0x0080 /* PCM LFE DAC is ready (Read only) */
- #define AC97_EA_MDAC 0x0100 /* MIC ADC is ready (Read only) */
- #define AC97_EA_SPCV 0x0400 /* S/PDIF configuration valid (Read only) */
- #define AC97_EA_PRI 0x0800 /* Turns the PCM Center DAC off */
- #define AC97_EA_PRJ 0x1000 /* Turns the PCM Surround DACs off */
- #define AC97_EA_PRK 0x2000 /* Turns the PCM LFE DAC off */
- #define AC97_EA_PRL 0x4000 /* Turns the MIC ADC off */
- #define AC97_EA_SLOT_MASK 0xffcf /* Mask for slot assignment bits */
- #define AC97_EA_SPSA_3_4 0x0000 /* Slot assigned to 3 & 4 */
- #define AC97_EA_SPSA_7_8 0x0010 /* Slot assigned to 7 & 8 */
- #define AC97_EA_SPSA_6_9 0x0020 /* Slot assigned to 6 & 9 */
- #define AC97_EA_SPSA_10_11 0x0030 /* Slot assigned to 10 & 11 */
- /* S/PDIF control bit defines */
- #define AC97_SC_PRO 0x0001 /* Professional status */
- #define AC97_SC_NAUDIO 0x0002 /* Non audio stream */
- #define AC97_SC_COPY 0x0004 /* Copyright status */
- #define AC97_SC_PRE 0x0008 /* Preemphasis status */
- #define AC97_SC_CC_MASK 0x07f0 /* Category Code mask */
- #define AC97_SC_L 0x0800 /* Generation Level status */
- #define AC97_SC_SPSR_MASK 0xcfff /* S/PDIF Sample Rate bits */
- #define AC97_SC_SPSR_44K 0x0000 /* Use 44.1kHz Sample rate */
- #define AC97_SC_SPSR_48K 0x2000 /* Use 48kHz Sample rate */
- #define AC97_SC_SPSR_32K 0x3000 /* Use 32kHz Sample rate */
- #define AC97_SC_DRS 0x4000 /* Double Rate S/PDIF */
- #define AC97_SC_V 0x8000 /* Validity status */
- /* 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_IGAIN|SOUND_MASK_VIDEO|
- SOUND_MASK_LINE1| SOUND_MASK_LINE|
- SOUND_MASK_PHONEIN)
- /* original check is not good enough in case FOO is greater than
- * SOUND_MIXER_NRDEVICES because the supported_mixers has exactly
- * SOUND_MIXER_NRDEVICES elements.
- * before matching the given mixer against the bitmask in supported_mixers we
- * check if mixer number exceeds maximum allowed size which is as mentioned
- * above SOUND_MIXER_NRDEVICES */
- #define supported_mixer(CODEC,FOO) ((FOO >= 0) &&
- (FOO < SOUND_MIXER_NRDEVICES) &&
- (CODEC)->supported_mixers & (1<<FOO) )
- struct ac97_codec {
- /* AC97 controller connected with */
- void *private_data;
- char *name;
- int id;
- int dev_mixer;
- int type;
- struct ac97_ops *codec_ops;
- /* 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);
- /* Wait for codec-ready. Ok to sleep here. */
- void (*codec_wait) (struct ac97_codec *codec);
- /* OSS mixer masks */
- int modcnt;
- int supported_mixers;
- int stereo_mixers;
- int record_sources;
- int bit_resolution;
- /* 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];
- /* Software Modem interface */
- int (*modem_ioctl)(struct ac97_codec *codec, unsigned int cmd, unsigned long arg);
- };
- /*
- * Operation structures for each known AC97 chip
- */
-
- struct ac97_ops
- {
- /* Initialise */
- int (*init)(struct ac97_codec *c);
- /* Amplifier control */
- int (*amplifier)(struct ac97_codec *codec, int on);
- /* Digital mode control */
- int (*digital)(struct ac97_codec *codec, int format);
- };
- 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 *);
- extern unsigned int ac97_set_adc_rate(struct ac97_codec *codec, unsigned int rate);
- extern unsigned int ac97_set_dac_rate(struct ac97_codec *codec, unsigned int rate);
- extern int ac97_save_state(struct ac97_codec *codec);
- extern int ac97_restore_state(struct ac97_codec *codec);
- #endif /* _AC97_CODEC_H_ */