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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 ADC 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 */
/* extended audio ID register bit defines */
#define AC97_EXTID_VRA 0x0001
#define AC97_EXTID_DRA 0x0002
#define AC97_EXTID_SPDIF 0x0004
#define AC97_EXTID_VRM 0x0008
#define AC97_EXTID_DSA0 0x0010
#define AC97_EXTID_DSA1 0x0020
#define AC97_EXTID_CDAC 0x0040
#define AC97_EXTID_SDAC 0x0080
#define AC97_EXTID_LDAC 0x0100
#define AC97_EXTID_AMAP 0x0200
#define AC97_EXTID_REV0 0x0400
#define AC97_EXTID_REV1 0x0800
#define AC97_EXTID_ID0 0x4000
#define AC97_EXTID_ID1 0x8000
/* extended status register bit defines */
#define AC97_EXTSTAT_VRA 0x0001
#define AC97_EXTSTAT_DRA 0x0002
#define AC97_EXTSTAT_SPDIF 0x0004
#define AC97_EXTSTAT_VRM 0x0008
#define AC97_EXTSTAT_SPSA0 0x0010
#define AC97_EXTSTAT_SPSA1 0x0020
#define AC97_EXTSTAT_CDAC 0x0040
#define AC97_EXTSTAT_SDAC 0x0080
#define AC97_EXTSTAT_LDAC 0x0100
#define AC97_EXTSTAT_MADC 0x0200
#define AC97_EXTSTAT_SPCV 0x0400
#define AC97_EXTSTAT_PRI 0x0800
#define AC97_EXTSTAT_PRJ 0x1000
#define AC97_EXTSTAT_PRK 0x2000
#define AC97_EXTSTAT_PRL 0x4000
/* 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 {
/* Linked list of codecs */
struct list_head list;
/* AC97 controller connected with */
void *private_data;
char *name;
int id;
int dev_mixer;
int type;
u32 model;
int modem:1;
struct ac97_ops *codec_ops;
/* controller specific lower leverl ac97 accessing routines.
must be re-entrant safe */
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);
/* callback used by helper drivers for interesting ac97 setups */
void (*codec_unregister) (struct ac97_codec *codec);
struct ac97_driver *driver;
void *driver_private; /* Private data for the driver */
spinlock_t lock;
/* OSS mixer masks */
int modcnt;
int supported_mixers;
int stereo_mixers;
int record_sources;
/* Property flags */
int flags;
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 slots, int rate, int mode);
#define AUDIO_DIGITAL 0x8000
#define AUDIO_PRO 0x4000
#define AUDIO_DRS 0x2000
#define AUDIO_CCMASK 0x003F
#define AC97_DELUDED_MODEM 1 /* Audio codec reports its a modem */
#define AC97_NO_PCM_VOLUME 2 /* Volume control is missing */
};
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);
extern struct ac97_codec *ac97_alloc_codec(void);
extern void ac97_release_codec(struct ac97_codec *codec);
struct ac97_driver {
struct list_head list;
char *name;
u32 codec_id;
u32 codec_mask;
int (*probe) (struct ac97_codec *codec, struct ac97_driver *driver);
void (*remove) (struct ac97_codec *codec, struct ac97_driver *driver);
};
extern int ac97_register_driver(struct ac97_driver *driver);
extern void ac97_unregister_driver(struct ac97_driver *driver);
#endif /* _AC97_CODEC_H_ */