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ac97_codec.h
/* SPDX-License-Identifier: GPL-2.0+ * * Copyright (c) by Jaroslav Kysela <perex@perex.cz> * Universal interface for Audio Codec '97 * * For more details look to AC '97 component specification revision 2.1 * by Intel Corporation (http://developer.intel.com). */ #ifndef __SOUND_AC97_CODEC_H #define __SOUND_AC97_CODEC_H #include <linux/bitops.h> #include <linux/device.h> #include <linux/workqueue.h> #include <sound/ac97/regs.h> #include <sound/pcm.h> #include <sound/control.h> #include <sound/info.h> /* maximum number of devices on the AC97 bus */ #define AC97_BUS_MAX_DEVICES 4 /* specific - SigmaTel */ #define AC97_SIGMATEL_OUTSEL 0x64 /* Output Select, STAC9758 */ #define AC97_SIGMATEL_INSEL 0x66 /* Input Select, STAC9758 */ #define AC97_SIGMATEL_IOMISC 0x68 /* STAC9758 */ #define AC97_SIGMATEL_ANALOG 0x6c /* Analog Special */ #define AC97_SIGMATEL_DAC2INVERT 0x6e #define AC97_SIGMATEL_BIAS1 0x70 #define AC97_SIGMATEL_BIAS2 0x72 #define AC97_SIGMATEL_VARIOUS 0x72 /* STAC9758 */ #define AC97_SIGMATEL_MULTICHN 0x74 /* Multi-Channel programming */ #define AC97_SIGMATEL_CIC1 0x76 #define AC97_SIGMATEL_CIC2 0x78 /* specific - Analog Devices */ #define AC97_AD_TEST 0x5a /* test register */ #define AC97_AD_TEST2 0x5c /* undocumented test register 2 */ #define AC97_AD_HPFD_SHIFT 12 /* High Pass Filter Disable */ #define AC97_AD_CODEC_CFG 0x70 /* codec configuration */ #define AC97_AD_JACK_SPDIF 0x72 /* Jack Sense & S/PDIF */ #define AC97_AD_SERIAL_CFG 0x74 /* Serial Configuration */ #define AC97_AD_MISC 0x76 /* Misc Control Bits */ #define AC97_AD_VREFD_SHIFT 2 /* V_REFOUT Disable (AD1888) */ /* specific - Cirrus Logic */ #define AC97_CSR_ACMODE 0x5e /* AC Mode Register */ #define AC97_CSR_MISC_CRYSTAL 0x60 /* Misc Crystal Control */ #define AC97_CSR_SPDIF 0x68 /* S/PDIF Register */ #define AC97_CSR_SERIAL 0x6a /* Serial Port Control */ #define AC97_CSR_SPECF_ADDR 0x6c /* Special Feature Address */ #define AC97_CSR_SPECF_DATA 0x6e /* Special Feature Data */ #define AC97_CSR_BDI_STATUS 0x7a /* BDI Status */ /* specific - Conexant */ #define AC97_CXR_AUDIO_MISC 0x5c #define AC97_CXR_SPDIFEN (1<<3) #define AC97_CXR_COPYRGT (1<<2) #define AC97_CXR_SPDIF_MASK (3<<0) #define AC97_CXR_SPDIF_PCM 0x0 #define AC97_CXR_SPDIF_AC3 0x2 /* specific - ALC */ #define AC97_ALC650_SPDIF_INPUT_STATUS1 0x60 /* S/PDIF input status 1 bit defines */ #define AC97_ALC650_PRO 0x0001 /* Professional status */ #define AC97_ALC650_NAUDIO 0x0002 /* Non audio stream */ #define AC97_ALC650_COPY 0x0004 /* Copyright status */ #define AC97_ALC650_PRE 0x0038 /* Preemphasis status */ #define AC97_ALC650_PRE_SHIFT 3 #define AC97_ALC650_MODE 0x00C0 /* Preemphasis status */ #define AC97_ALC650_MODE_SHIFT 6 #define AC97_ALC650_CC_MASK 0x7f00 /* Category Code mask */ #define AC97_ALC650_CC_SHIFT 8 #define AC97_ALC650_L 0x8000 /* Generation Level status */ #define AC97_ALC650_SPDIF_INPUT_STATUS2 0x62 /* S/PDIF input status 2 bit defines */ #define AC97_ALC650_SOUCE_MASK 0x000f /* Source number */ #define AC97_ALC650_CHANNEL_MASK 0x00f0 /* Channel number */ #define AC97_ALC650_CHANNEL_SHIFT 4 #define AC97_ALC650_SPSR_MASK 0x0f00 /* S/PDIF Sample Rate bits */ #define AC97_ALC650_SPSR_SHIFT 8 #define AC97_ALC650_SPSR_44K 0x0000 /* Use 44.1kHz Sample rate */ #define AC97_ALC650_SPSR_48K 0x0200 /* Use 48kHz Sample rate */ #define AC97_ALC650_SPSR_32K 0x0300 /* Use 32kHz Sample rate */ #define AC97_ALC650_CLOCK_ACCURACY 0x3000 /* Clock accuracy */ #define AC97_ALC650_CLOCK_SHIFT 12 #define AC97_ALC650_CLOCK_LOCK 0x4000 /* Clock locked status */ #define AC97_ALC650_V 0x8000 /* Validity status */ #define AC97_ALC650_SURR_DAC_VOL 0x64 #define AC97_ALC650_LFE_DAC_VOL 0x66 #define AC97_ALC650_UNKNOWN1 0x68 #define AC97_ALC650_MULTICH 0x6a #define AC97_ALC650_UNKNOWN2 0x6c #define AC97_ALC650_REVISION 0x6e #define AC97_ALC650_UNKNOWN3 0x70 #define AC97_ALC650_UNKNOWN4 0x72 #define AC97_ALC650_MISC 0x74 #define AC97_ALC650_GPIO_SETUP 0x76 #define AC97_ALC650_GPIO_STATUS 0x78 #define AC97_ALC650_CLOCK 0x7a /* specific - Yamaha YMF7x3 */ #define AC97_YMF7X3_DIT_CTRL 0x66 /* DIT Control (YMF743) / 2 (YMF753) */ #define AC97_YMF7X3_3D_MODE_SEL 0x68 /* 3D Mode Select */ /* specific - C-Media */ #define AC97_CM9738_VENDOR_CTRL 0x5a #define AC97_CM9739_MULTI_CHAN 0x64 #define AC97_CM9739_SPDIF_IN_STATUS 0x68 /* 32bit */ #define AC97_CM9739_SPDIF_CTRL 0x6c /* specific - wolfson */ #define AC97_WM97XX_FMIXER_VOL 0x72 #define AC97_WM9704_RMIXER_VOL 0x74 #define AC97_WM9704_TEST 0x5a #define AC97_WM9704_RPCM_VOL 0x70 #define AC97_WM9711_OUT3VOL 0x16 /* ac97->scaps */ #define AC97_SCAP_AUDIO (1<<0) /* audio codec 97 */ #define AC97_SCAP_MODEM (1<<1) /* modem codec 97 */ #define AC97_SCAP_SURROUND_DAC (1<<2) /* surround L&R DACs are present */ #define AC97_SCAP_CENTER_LFE_DAC (1<<3) /* center and LFE DACs are present */ #define AC97_SCAP_SKIP_AUDIO (1<<4) /* skip audio part of codec */ #define AC97_SCAP_SKIP_MODEM (1<<5) /* skip modem part of codec */ #define AC97_SCAP_INDEP_SDIN (1<<6) /* independent SDIN */ #define AC97_SCAP_INV_EAPD (1<<7) /* inverted EAPD */ #define AC97_SCAP_DETECT_BY_VENDOR (1<<8) /* use vendor registers for read tests */ #define AC97_SCAP_NO_SPDIF (1<<9) /* don't build SPDIF controls */ #define AC97_SCAP_EAPD_LED (1<<10) /* EAPD as mute LED */ #define AC97_SCAP_POWER_SAVE (1<<11) /* capable for aggressive power-saving */ /* ac97->flags */ #define AC97_HAS_PC_BEEP (1<<0) /* force PC Speaker usage */ #define AC97_AD_MULTI (1<<1) /* Analog Devices - multi codecs */ #define AC97_CS_SPDIF (1<<2) /* Cirrus Logic uses funky SPDIF */ #define AC97_CX_SPDIF (1<<3) /* Conexant's spdif interface */ #define AC97_STEREO_MUTES (1<<4) /* has stereo mute bits */ #define AC97_DOUBLE_RATE (1<<5) /* supports double rate playback */ #define AC97_HAS_NO_MASTER_VOL (1<<6) /* no Master volume */ #define AC97_HAS_NO_PCM_VOL (1<<7) /* no PCM volume */ #define AC97_DEFAULT_POWER_OFF (1<<8) /* no RESET write */ #define AC97_MODEM_PATCH (1<<9) /* modem patch */ #define AC97_HAS_NO_REC_GAIN (1<<10) /* no Record gain */ #define AC97_HAS_NO_PHONE (1<<11) /* no PHONE volume */ #define AC97_HAS_NO_PC_BEEP (1<<12) /* no PC Beep volume */ #define AC97_HAS_NO_VIDEO (1<<13) /* no Video volume */ #define AC97_HAS_NO_CD (1<<14) /* no CD volume */ #define AC97_HAS_NO_MIC (1<<15) /* no MIC volume */ #define AC97_HAS_NO_TONE (1<<16) /* no Tone volume */ #define AC97_HAS_NO_STD_PCM (1<<17) /* no standard AC97 PCM volume and mute */ #define AC97_HAS_NO_AUX (1<<18) /* no standard AC97 AUX volume and mute */ #define AC97_HAS_8CH (1<<19) /* supports 8-channel output */ /* rates indexes */ #define AC97_RATES_FRONT_DAC 0 #define AC97_RATES_SURR_DAC 1 #define AC97_RATES_LFE_DAC 2 #define AC97_RATES_ADC 3 #define AC97_RATES_MIC_ADC 4 #define AC97_RATES_SPDIF 5 #define AC97_NUM_GPIOS 16 /* * */ struct snd_ac97; struct snd_ac97_gpio_priv; struct snd_pcm_chmap; struct snd_ac97_build_ops { int (*build_3d) (struct snd_ac97 *ac97); int (*build_specific) (struct snd_ac97 *ac97); int (*build_spdif) (struct snd_ac97 *ac97); int (*build_post_spdif) (struct snd_ac97 *ac97); #ifdef CONFIG_PM void (*suspend) (struct snd_ac97 *ac97); void (*resume) (struct snd_ac97 *ac97); #endif void (*update_jacks) (struct snd_ac97 *ac97); /* for jack-sharing */ }; struct snd_ac97_bus_ops { void (*reset) (struct snd_ac97 *ac97); void (*warm_reset)(struct snd_ac97 *ac97); void (*write) (struct snd_ac97 *ac97, unsigned short reg, unsigned short val); unsigned short (*read) (struct snd_ac97 *ac97, unsigned short reg); void (*wait) (struct snd_ac97 *ac97); void (*init) (struct snd_ac97 *ac97); }; struct snd_ac97_bus { /* -- lowlevel (hardware) driver specific -- */ const struct snd_ac97_bus_ops *ops; void *private_data; void (*private_free) (struct snd_ac97_bus *bus); /* --- */ struct snd_card *card; unsigned short num; /* bus number */ unsigned short no_vra: 1, /* bridge doesn't support VRA */ dra: 1, /* bridge supports double rate */ isdin: 1;/* independent SDIN */ unsigned int clock; /* AC'97 base clock (usually 48000Hz) */ spinlock_t bus_lock; /* used mainly for slot allocation */ unsigned short used_slots[2][4]; /* actually used PCM slots */ unsigned short pcms_count; /* count of PCMs */ struct ac97_pcm *pcms; struct snd_ac97 *codec[4]; struct snd_info_entry *proc; }; /* static resolution table */ struct snd_ac97_res_table { unsigned short reg; /* register */ unsigned short bits; /* resolution bitmask */ }; struct snd_ac97_template { void *private_data; void (*private_free) (struct snd_ac97 *ac97); struct pci_dev *pci; /* assigned PCI device - used for quirks */ unsigned short num; /* number of codec: 0 = primary, 1 = secondary */ unsigned short addr; /* physical address of codec [0-3] */ unsigned int scaps; /* driver capabilities */ const struct snd_ac97_res_table *res_table; /* static resolution */ }; struct snd_ac97 { /* -- lowlevel (hardware) driver specific -- */ const struct snd_ac97_build_ops *build_ops; void *private_data; void (*private_free) (struct snd_ac97 *ac97); /* --- */ struct snd_ac97_bus *bus; struct pci_dev *pci; /* assigned PCI device - used for quirks */ struct snd_info_entry *proc; struct snd_info_entry *proc_regs; unsigned short subsystem_vendor; unsigned short subsystem_device; struct mutex reg_mutex; struct mutex page_mutex; /* mutex for AD18xx multi-codecs and paging (2.3) */ unsigned short num; /* number of codec: 0 = primary, 1 = secondary */ unsigned short addr; /* physical address of codec [0-3] */ unsigned int id; /* identification of codec */ unsigned short caps; /* capabilities (register 0) */ unsigned short ext_id; /* extended feature identification (register 28) */ unsigned short ext_mid; /* extended modem ID (register 3C) */ const struct snd_ac97_res_table *res_table; /* static resolution */ unsigned int scaps; /* driver capabilities */ unsigned int flags; /* specific code */ unsigned int rates[6]; /* see AC97_RATES_* defines */ unsigned int spdif_status; unsigned short regs[0x80]; /* register cache */ DECLARE_BITMAP(reg_accessed, 0x80); /* bit flags */ union { /* vendor specific code */ struct { unsigned short unchained[3]; // 0 = C34, 1 = C79, 2 = C69 unsigned short chained[3]; // 0 = C34, 1 = C79, 2 = C69 unsigned short id[3]; // codec IDs (lower 16-bit word) unsigned short pcmreg[3]; // PCM registers unsigned short codec_cfg[3]; // CODEC_CFG bits unsigned char swap_mic_linein; // AD1986/AD1986A only unsigned char lo_as_master; /* LO as master */ } ad18xx; unsigned int dev_flags; /* device specific */ } spec; /* jack-sharing info */ unsigned char indep_surround; unsigned char channel_mode; #ifdef CONFIG_SND_AC97_POWER_SAVE unsigned int power_up; /* power states */ struct delayed_work power_work; #endif struct device dev; struct snd_ac97_gpio_priv *gpio_priv; struct snd_pcm_chmap *chmaps[2]; /* channel-maps (optional) */ }; #define to_ac97_t(d) container_of(d, struct snd_ac97, dev) /* conditions */ static inline int ac97_is_audio(struct snd_ac97 * ac97) { return (ac97->scaps & AC97_SCAP_AUDIO); } static inline int ac97_is_modem(struct snd_ac97 * ac97) { return (ac97->scaps & AC97_SCAP_MODEM); } static inline int ac97_is_rev22(struct snd_ac97 * ac97) { return (ac97->ext_id & AC97_EI_REV_MASK) >= AC97_EI_REV_22; } static inline int ac97_can_amap(struct snd_ac97 * ac97) { return (ac97->ext_id & AC97_EI_AMAP) != 0; } static inline int ac97_can_spdif(struct snd_ac97 * ac97) { return (ac97->ext_id & AC97_EI_SPDIF) != 0; } /* functions */ /* create new AC97 bus */ int snd_ac97_bus(struct snd_card *card, int num, const struct snd_ac97_bus_ops *ops, void *private_data, struct snd_ac97_bus **rbus); /* create mixer controls */ int snd_ac97_mixer(struct snd_ac97_bus *bus, struct snd_ac97_template *template, struct snd_ac97 **rac97); const char *snd_ac97_get_short_name(struct snd_ac97 *ac97); void snd_ac97_write(struct snd_ac97 *ac97, unsigned short reg, unsigned short value); unsigned short snd_ac97_read(struct snd_ac97 *ac97, unsigned short reg); void snd_ac97_write_cache(struct snd_ac97 *ac97, unsigned short reg, unsigned short value); int snd_ac97_update(struct snd_ac97 *ac97, unsigned short reg, unsigned short value); int snd_ac97_update_bits(struct snd_ac97 *ac97, unsigned short reg, unsigned short mask, unsigned short value); #ifdef CONFIG_SND_AC97_POWER_SAVE int snd_ac97_update_power(struct snd_ac97 *ac97, int reg, int powerup); #else static inline int snd_ac97_update_power(struct snd_ac97 *ac97, int reg, int powerup) { return 0; } #endif #ifdef CONFIG_PM void snd_ac97_suspend(struct snd_ac97 *ac97); void snd_ac97_resume(struct snd_ac97 *ac97); #else static inline void snd_ac97_suspend(struct snd_ac97 *ac97) {} static inline void snd_ac97_resume(struct snd_ac97 *ac97) {} #endif int snd_ac97_reset(struct snd_ac97 *ac97, bool try_warm, unsigned int id, unsigned int id_mask); /* quirk types */ enum { AC97_TUNE_DEFAULT = -1, /* use default from quirk list (not valid in list) */ AC97_TUNE_NONE = 0, /* nothing extra to do */ AC97_TUNE_HP_ONLY, /* headphone (true line-out) control as master only */ AC97_TUNE_SWAP_HP, /* swap headphone and master controls */ AC97_TUNE_SWAP_SURROUND, /* swap master and surround controls */ AC97_TUNE_AD_SHARING, /* for AD1985, turn on OMS bit and use headphone */ AC97_TUNE_ALC_JACK, /* for Realtek, enable JACK detection */ AC97_TUNE_INV_EAPD, /* inverted EAPD implementation */ AC97_TUNE_MUTE_LED, /* EAPD bit works as mute LED */ AC97_TUNE_HP_MUTE_LED, /* EAPD bit works as mute LED, use headphone control as master */ }; struct ac97_quirk { unsigned short subvendor; /* PCI subsystem vendor id */ unsigned short subdevice; /* PCI subsystem device id */ unsigned short mask; /* device id bit mask, 0 = accept all */ unsigned int codec_id; /* codec id (if any), 0 = accept all */ const char *name; /* name shown as info */ int type; /* quirk type above */ }; int snd_ac97_tune_hardware(struct snd_ac97 *ac97, const struct ac97_quirk *quirk, const char *override); int snd_ac97_set_rate(struct snd_ac97 *ac97, int reg, unsigned int rate); /* * PCM allocation */ enum ac97_pcm_cfg { AC97_PCM_CFG_FRONT = 2, AC97_PCM_CFG_REAR = 10, /* alias surround */ AC97_PCM_CFG_LFE = 11, /* center + lfe */ AC97_PCM_CFG_40 = 4, /* front + rear */ AC97_PCM_CFG_51 = 6, /* front + rear + center/lfe */ AC97_PCM_CFG_SPDIF = 20 }; struct ac97_pcm { struct snd_ac97_bus *bus; unsigned int stream: 1, /* stream type: 1 = capture */ exclusive: 1, /* exclusive mode, don't override with other pcms */ copy_flag: 1, /* lowlevel driver must fill all entries */ spdif: 1; /* spdif pcm */ unsigned short aslots; /* active slots */ unsigned short cur_dbl; /* current double-rate state */ unsigned int rates; /* available rates */ struct { unsigned short slots; /* driver input: requested AC97 slot numbers */ unsigned short rslots[4]; /* allocated slots per codecs */ unsigned char rate_table[4]; struct snd_ac97 *codec[4]; /* allocated codecs */ } r[2]; /* 0 = standard rates, 1 = double rates */ unsigned long private_value; /* used by the hardware driver */ }; int snd_ac97_pcm_assign(struct snd_ac97_bus *ac97, unsigned short pcms_count, const struct ac97_pcm *pcms); int snd_ac97_pcm_open(struct ac97_pcm *pcm, unsigned int rate, enum ac97_pcm_cfg cfg, unsigned short slots); int snd_ac97_pcm_close(struct ac97_pcm *pcm); int snd_ac97_pcm_double_rate_rules(struct snd_pcm_runtime *runtime); /* ad hoc AC97 device driver access */ extern const struct bus_type ac97_bus_type; /* AC97 platform_data adding function */ static inline void snd_ac97_dev_add_pdata(struct snd_ac97 *ac97, void *data) { ac97->dev.platform_data = data; } #endif /* __SOUND_AC97_CODEC_H */
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