root/include/sound/ac97_codec.h

INCLUDED FROM

DEFINITIONS

1. ac97_is_audio
2. ac97_is_modem
3. ac97_is_rev22
4. ac97_can_amap
5. ac97_can_spdif
6. snd_ac97_update_power
7. snd_ac97_dev_add_pdata

   1 /* SPDX-License-Identifier: GPL-2.0+
   2  *
   3  *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
   4  *  Universal interface for Audio Codec '97
   5  *
   6  *  For more details look to AC '97 component specification revision 2.1
   7  *  by Intel Corporation (http://developer.intel.com).
   8  */
   9 
  10 #ifndef __SOUND_AC97_CODEC_H
  11 #define __SOUND_AC97_CODEC_H
  12 
  13 #include <linux/bitops.h>
  14 #include <linux/device.h>
  15 #include <linux/workqueue.h>
  16 #include <sound/ac97/regs.h>
  17 #include <sound/pcm.h>
  18 #include <sound/control.h>
  19 #include <sound/info.h>
  20 
  21 /* maximum number of devices on the AC97 bus */
  22 #define AC97_BUS_MAX_DEVICES    4
  23 
  24 /* specific - SigmaTel */
  25 #define AC97_SIGMATEL_OUTSEL    0x64    /* Output Select, STAC9758 */
  26 #define AC97_SIGMATEL_INSEL     0x66    /* Input Select, STAC9758 */
  27 #define AC97_SIGMATEL_IOMISC    0x68    /* STAC9758 */
  28 #define AC97_SIGMATEL_ANALOG    0x6c    /* Analog Special */
  29 #define AC97_SIGMATEL_DAC2INVERT 0x6e
  30 #define AC97_SIGMATEL_BIAS1     0x70
  31 #define AC97_SIGMATEL_BIAS2     0x72
  32 #define AC97_SIGMATEL_VARIOUS   0x72    /* STAC9758 */
  33 #define AC97_SIGMATEL_MULTICHN  0x74    /* Multi-Channel programming */
  34 #define AC97_SIGMATEL_CIC1      0x76
  35 #define AC97_SIGMATEL_CIC2      0x78
  36 
  37 /* specific - Analog Devices */
  38 #define AC97_AD_TEST            0x5a    /* test register */
  39 #define AC97_AD_TEST2           0x5c    /* undocumented test register 2 */
  40 #define AC97_AD_HPFD_SHIFT      12      /* High Pass Filter Disable */
  41 #define AC97_AD_CODEC_CFG       0x70    /* codec configuration */
  42 #define AC97_AD_JACK_SPDIF      0x72    /* Jack Sense & S/PDIF */
  43 #define AC97_AD_SERIAL_CFG      0x74    /* Serial Configuration */
  44 #define AC97_AD_MISC            0x76    /* Misc Control Bits */
  45 #define AC97_AD_VREFD_SHIFT     2       /* V_REFOUT Disable (AD1888) */
  46 
  47 /* specific - Cirrus Logic */
  48 #define AC97_CSR_ACMODE         0x5e    /* AC Mode Register */
  49 #define AC97_CSR_MISC_CRYSTAL   0x60    /* Misc Crystal Control */
  50 #define AC97_CSR_SPDIF          0x68    /* S/PDIF Register */
  51 #define AC97_CSR_SERIAL         0x6a    /* Serial Port Control */
  52 #define AC97_CSR_SPECF_ADDR     0x6c    /* Special Feature Address */
  53 #define AC97_CSR_SPECF_DATA     0x6e    /* Special Feature Data */
  54 #define AC97_CSR_BDI_STATUS     0x7a    /* BDI Status */
  55 
  56 /* specific - Conexant */
  57 #define AC97_CXR_AUDIO_MISC     0x5c
  58 #define AC97_CXR_SPDIFEN        (1<<3)
  59 #define AC97_CXR_COPYRGT        (1<<2)
  60 #define AC97_CXR_SPDIF_MASK     (3<<0)
  61 #define AC97_CXR_SPDIF_PCM      0x0
  62 #define AC97_CXR_SPDIF_AC3      0x2
  63 
  64 /* specific - ALC */
  65 #define AC97_ALC650_SPDIF_INPUT_STATUS1 0x60
  66 /* S/PDIF input status 1 bit defines */
  67 #define AC97_ALC650_PRO             0x0001  /* Professional status */
  68 #define AC97_ALC650_NAUDIO          0x0002  /* Non audio stream */
  69 #define AC97_ALC650_COPY            0x0004  /* Copyright status */
  70 #define AC97_ALC650_PRE             0x0038  /* Preemphasis status */
  71 #define AC97_ALC650_PRE_SHIFT       3
  72 #define AC97_ALC650_MODE            0x00C0  /* Preemphasis status */
  73 #define AC97_ALC650_MODE_SHIFT      6
  74 #define AC97_ALC650_CC_MASK         0x7f00  /* Category Code mask */
  75 #define AC97_ALC650_CC_SHIFT        8
  76 #define AC97_ALC650_L               0x8000  /* Generation Level status */
  77 
  78 #define AC97_ALC650_SPDIF_INPUT_STATUS2 0x62
  79 /* S/PDIF input status 2 bit defines */
  80 #define AC97_ALC650_SOUCE_MASK      0x000f  /* Source number */
  81 #define AC97_ALC650_CHANNEL_MASK    0x00f0  /* Channel number */
  82 #define AC97_ALC650_CHANNEL_SHIFT   4 
  83 #define AC97_ALC650_SPSR_MASK       0x0f00  /* S/PDIF Sample Rate bits */
  84 #define AC97_ALC650_SPSR_SHIFT      8
  85 #define AC97_ALC650_SPSR_44K        0x0000  /* Use 44.1kHz Sample rate */
  86 #define AC97_ALC650_SPSR_48K        0x0200  /* Use 48kHz Sample rate */
  87 #define AC97_ALC650_SPSR_32K        0x0300  /* Use 32kHz Sample rate */
  88 #define AC97_ALC650_CLOCK_ACCURACY  0x3000  /* Clock accuracy */
  89 #define AC97_ALC650_CLOCK_SHIFT     12
  90 #define AC97_ALC650_CLOCK_LOCK      0x4000  /* Clock locked status */
  91 #define AC97_ALC650_V               0x8000  /* Validity status */
  92 
  93 #define AC97_ALC650_SURR_DAC_VOL        0x64
  94 #define AC97_ALC650_LFE_DAC_VOL         0x66
  95 #define AC97_ALC650_UNKNOWN1            0x68
  96 #define AC97_ALC650_MULTICH             0x6a
  97 #define AC97_ALC650_UNKNOWN2            0x6c
  98 #define AC97_ALC650_REVISION            0x6e
  99 #define AC97_ALC650_UNKNOWN3            0x70
 100 #define AC97_ALC650_UNKNOWN4            0x72
 101 #define AC97_ALC650_MISC                0x74
 102 #define AC97_ALC650_GPIO_SETUP          0x76
 103 #define AC97_ALC650_GPIO_STATUS         0x78
 104 #define AC97_ALC650_CLOCK               0x7a
 105 
 106 /* specific - Yamaha YMF7x3 */
 107 #define AC97_YMF7X3_DIT_CTRL    0x66    /* DIT Control (YMF743) / 2 (YMF753) */
 108 #define AC97_YMF7X3_3D_MODE_SEL 0x68    /* 3D Mode Select */
 109 
 110 /* specific - C-Media */
 111 #define AC97_CM9738_VENDOR_CTRL 0x5a
 112 #define AC97_CM9739_MULTI_CHAN  0x64
 113 #define AC97_CM9739_SPDIF_IN_STATUS     0x68 /* 32bit */
 114 #define AC97_CM9739_SPDIF_CTRL  0x6c
 115 
 116 /* specific - wolfson */
 117 #define AC97_WM97XX_FMIXER_VOL  0x72
 118 #define AC97_WM9704_RMIXER_VOL  0x74
 119 #define AC97_WM9704_TEST        0x5a
 120 #define AC97_WM9704_RPCM_VOL    0x70
 121 #define AC97_WM9711_OUT3VOL     0x16
 122 
 123 
 124 /* ac97->scaps */
 125 #define AC97_SCAP_AUDIO         (1<<0)  /* audio codec 97 */
 126 #define AC97_SCAP_MODEM         (1<<1)  /* modem codec 97 */
 127 #define AC97_SCAP_SURROUND_DAC  (1<<2)  /* surround L&R DACs are present */
 128 #define AC97_SCAP_CENTER_LFE_DAC (1<<3) /* center and LFE DACs are present */
 129 #define AC97_SCAP_SKIP_AUDIO    (1<<4)  /* skip audio part of codec */
 130 #define AC97_SCAP_SKIP_MODEM    (1<<5)  /* skip modem part of codec */
 131 #define AC97_SCAP_INDEP_SDIN    (1<<6)  /* independent SDIN */
 132 #define AC97_SCAP_INV_EAPD      (1<<7)  /* inverted EAPD */
 133 #define AC97_SCAP_DETECT_BY_VENDOR (1<<8) /* use vendor registers for read tests */
 134 #define AC97_SCAP_NO_SPDIF      (1<<9)  /* don't build SPDIF controls */
 135 #define AC97_SCAP_EAPD_LED      (1<<10) /* EAPD as mute LED */
 136 #define AC97_SCAP_POWER_SAVE    (1<<11) /* capable for aggressive power-saving */
 137 
 138 /* ac97->flags */
 139 #define AC97_HAS_PC_BEEP        (1<<0)  /* force PC Speaker usage */
 140 #define AC97_AD_MULTI           (1<<1)  /* Analog Devices - multi codecs */
 141 #define AC97_CS_SPDIF           (1<<2)  /* Cirrus Logic uses funky SPDIF */
 142 #define AC97_CX_SPDIF           (1<<3)  /* Conexant's spdif interface */
 143 #define AC97_STEREO_MUTES       (1<<4)  /* has stereo mute bits */
 144 #define AC97_DOUBLE_RATE        (1<<5)  /* supports double rate playback */
 145 #define AC97_HAS_NO_MASTER_VOL  (1<<6)  /* no Master volume */
 146 #define AC97_HAS_NO_PCM_VOL     (1<<7)  /* no PCM volume */
 147 #define AC97_DEFAULT_POWER_OFF  (1<<8)  /* no RESET write */
 148 #define AC97_MODEM_PATCH        (1<<9)  /* modem patch */
 149 #define AC97_HAS_NO_REC_GAIN    (1<<10) /* no Record gain */
 150 #define AC97_HAS_NO_PHONE       (1<<11) /* no PHONE volume */
 151 #define AC97_HAS_NO_PC_BEEP     (1<<12) /* no PC Beep volume */
 152 #define AC97_HAS_NO_VIDEO       (1<<13) /* no Video volume */
 153 #define AC97_HAS_NO_CD          (1<<14) /* no CD volume */
 154 #define AC97_HAS_NO_MIC (1<<15) /* no MIC volume */
 155 #define AC97_HAS_NO_TONE        (1<<16) /* no Tone volume */
 156 #define AC97_HAS_NO_STD_PCM     (1<<17) /* no standard AC97 PCM volume and mute */
 157 #define AC97_HAS_NO_AUX         (1<<18) /* no standard AC97 AUX volume and mute */
 158 #define AC97_HAS_8CH            (1<<19) /* supports 8-channel output */
 159 
 160 /* rates indexes */
 161 #define AC97_RATES_FRONT_DAC    0
 162 #define AC97_RATES_SURR_DAC     1
 163 #define AC97_RATES_LFE_DAC      2
 164 #define AC97_RATES_ADC          3
 165 #define AC97_RATES_MIC_ADC      4
 166 #define AC97_RATES_SPDIF        5
 167 
 168 #define AC97_NUM_GPIOS          16
 169 /*
 170  *
 171  */
 172 
 173 struct snd_ac97;
 174 struct snd_ac97_gpio_priv;
 175 struct snd_pcm_chmap;
 176 
 177 struct snd_ac97_build_ops {
 178         int (*build_3d) (struct snd_ac97 *ac97);
 179         int (*build_specific) (struct snd_ac97 *ac97);
 180         int (*build_spdif) (struct snd_ac97 *ac97);
 181         int (*build_post_spdif) (struct snd_ac97 *ac97);
 182 #ifdef CONFIG_PM
 183         void (*suspend) (struct snd_ac97 *ac97);
 184         void (*resume) (struct snd_ac97 *ac97);
 185 #endif
 186         void (*update_jacks) (struct snd_ac97 *ac97);   /* for jack-sharing */
 187 };
 188 
 189 struct snd_ac97_bus_ops {
 190         void (*reset) (struct snd_ac97 *ac97);
 191         void (*warm_reset)(struct snd_ac97 *ac97);
 192         void (*write) (struct snd_ac97 *ac97, unsigned short reg, unsigned short val);
 193         unsigned short (*read) (struct snd_ac97 *ac97, unsigned short reg);
 194         void (*wait) (struct snd_ac97 *ac97);
 195         void (*init) (struct snd_ac97 *ac97);
 196 };
 197 
 198 struct snd_ac97_bus {
 199         /* -- lowlevel (hardware) driver specific -- */
 200         struct snd_ac97_bus_ops *ops;
 201         void *private_data;
 202         void (*private_free) (struct snd_ac97_bus *bus);
 203         /* --- */
 204         struct snd_card *card;
 205         unsigned short num;     /* bus number */
 206         unsigned short no_vra: 1, /* bridge doesn't support VRA */
 207                        dra: 1,  /* bridge supports double rate */
 208                        isdin: 1;/* independent SDIN */
 209         unsigned int clock;     /* AC'97 base clock (usually 48000Hz) */
 210         spinlock_t bus_lock;    /* used mainly for slot allocation */
 211         unsigned short used_slots[2][4]; /* actually used PCM slots */
 212         unsigned short pcms_count; /* count of PCMs */
 213         struct ac97_pcm *pcms;
 214         struct snd_ac97 *codec[4];
 215         struct snd_info_entry *proc;
 216 };
 217 
 218 /* static resolution table */
 219 struct snd_ac97_res_table {
 220         unsigned short reg;     /* register */
 221         unsigned short bits;    /* resolution bitmask */
 222 };
 223 
 224 struct snd_ac97_template {
 225         void *private_data;
 226         void (*private_free) (struct snd_ac97 *ac97);
 227         struct pci_dev *pci;    /* assigned PCI device - used for quirks */
 228         unsigned short num;     /* number of codec: 0 = primary, 1 = secondary */
 229         unsigned short addr;    /* physical address of codec [0-3] */
 230         unsigned int scaps;     /* driver capabilities */
 231         const struct snd_ac97_res_table *res_table;     /* static resolution */
 232 };
 233 
 234 struct snd_ac97 {
 235         /* -- lowlevel (hardware) driver specific -- */
 236         const struct snd_ac97_build_ops *build_ops;
 237         void *private_data;
 238         void (*private_free) (struct snd_ac97 *ac97);
 239         /* --- */
 240         struct snd_ac97_bus *bus;
 241         struct pci_dev *pci;    /* assigned PCI device - used for quirks */
 242         struct snd_info_entry *proc;
 243         struct snd_info_entry *proc_regs;
 244         unsigned short subsystem_vendor;
 245         unsigned short subsystem_device;
 246         struct mutex reg_mutex;
 247         struct mutex page_mutex;        /* mutex for AD18xx multi-codecs and paging (2.3) */
 248         unsigned short num;     /* number of codec: 0 = primary, 1 = secondary */
 249         unsigned short addr;    /* physical address of codec [0-3] */
 250         unsigned int id;        /* identification of codec */
 251         unsigned short caps;    /* capabilities (register 0) */
 252         unsigned short ext_id;  /* extended feature identification (register 28) */
 253         unsigned short ext_mid; /* extended modem ID (register 3C) */
 254         const struct snd_ac97_res_table *res_table;     /* static resolution */
 255         unsigned int scaps;     /* driver capabilities */
 256         unsigned int flags;     /* specific code */
 257         unsigned int rates[6];  /* see AC97_RATES_* defines */
 258         unsigned int spdif_status;
 259         unsigned short regs[0x80]; /* register cache */
 260         DECLARE_BITMAP(reg_accessed, 0x80); /* bit flags */
 261         union {                 /* vendor specific code */
 262                 struct {
 263                         unsigned short unchained[3];    // 0 = C34, 1 = C79, 2 = C69
 264                         unsigned short chained[3];      // 0 = C34, 1 = C79, 2 = C69
 265                         unsigned short id[3];           // codec IDs (lower 16-bit word)
 266                         unsigned short pcmreg[3];       // PCM registers
 267                         unsigned short codec_cfg[3];    // CODEC_CFG bits
 268                         unsigned char swap_mic_linein;  // AD1986/AD1986A only
 269                         unsigned char lo_as_master;     /* LO as master */
 270                 } ad18xx;
 271                 unsigned int dev_flags;         /* device specific */
 272         } spec;
 273         /* jack-sharing info */
 274         unsigned char indep_surround;
 275         unsigned char channel_mode;
 276 
 277 #ifdef CONFIG_SND_AC97_POWER_SAVE
 278         unsigned int power_up;  /* power states */
 279         struct delayed_work power_work;
 280 #endif
 281         struct device dev;
 282         struct snd_ac97_gpio_priv *gpio_priv;
 283 
 284         struct snd_pcm_chmap *chmaps[2]; /* channel-maps (optional) */
 285 };
 286 
 287 #define to_ac97_t(d) container_of(d, struct snd_ac97, dev)
 288 
 289 /* conditions */
 290 static inline int ac97_is_audio(struct snd_ac97 * ac97)
 291 {
 292         return (ac97->scaps & AC97_SCAP_AUDIO);
 293 }
 294 static inline int ac97_is_modem(struct snd_ac97 * ac97)
 295 {
 296         return (ac97->scaps & AC97_SCAP_MODEM);
 297 }
 298 static inline int ac97_is_rev22(struct snd_ac97 * ac97)
 299 {
 300         return (ac97->ext_id & AC97_EI_REV_MASK) >= AC97_EI_REV_22;
 301 }
 302 static inline int ac97_can_amap(struct snd_ac97 * ac97)
 303 {
 304         return (ac97->ext_id & AC97_EI_AMAP) != 0;
 305 }
 306 static inline int ac97_can_spdif(struct snd_ac97 * ac97)
 307 {
 308         return (ac97->ext_id & AC97_EI_SPDIF) != 0;
 309 }
 310 
 311 /* functions */
 312 /* create new AC97 bus */
 313 int snd_ac97_bus(struct snd_card *card, int num, struct snd_ac97_bus_ops *ops,
 314                  void *private_data, struct snd_ac97_bus **rbus);
 315 /* create mixer controls */
 316 int snd_ac97_mixer(struct snd_ac97_bus *bus, struct snd_ac97_template *template,
 317                    struct snd_ac97 **rac97);
 318 const char *snd_ac97_get_short_name(struct snd_ac97 *ac97);
 319 
 320 void snd_ac97_write(struct snd_ac97 *ac97, unsigned short reg, unsigned short value);
 321 unsigned short snd_ac97_read(struct snd_ac97 *ac97, unsigned short reg);
 322 void snd_ac97_write_cache(struct snd_ac97 *ac97, unsigned short reg, unsigned short value);
 323 int snd_ac97_update(struct snd_ac97 *ac97, unsigned short reg, unsigned short value);
 324 int snd_ac97_update_bits(struct snd_ac97 *ac97, unsigned short reg, unsigned short mask, unsigned short value);
 325 #ifdef CONFIG_SND_AC97_POWER_SAVE
 326 int snd_ac97_update_power(struct snd_ac97 *ac97, int reg, int powerup);
 327 #else
 328 static inline int snd_ac97_update_power(struct snd_ac97 *ac97, int reg,
 329                                         int powerup)
 330 {
 331         return 0;
 332 }
 333 #endif
 334 #ifdef CONFIG_PM
 335 void snd_ac97_suspend(struct snd_ac97 *ac97);
 336 void snd_ac97_resume(struct snd_ac97 *ac97);
 337 #endif
 338 int snd_ac97_reset(struct snd_ac97 *ac97, bool try_warm, unsigned int id,
 339         unsigned int id_mask);
 340 
 341 /* quirk types */
 342 enum {
 343         AC97_TUNE_DEFAULT = -1, /* use default from quirk list (not valid in list) */
 344         AC97_TUNE_NONE = 0,     /* nothing extra to do */
 345         AC97_TUNE_HP_ONLY,      /* headphone (true line-out) control as master only */
 346         AC97_TUNE_SWAP_HP,      /* swap headphone and master controls */
 347         AC97_TUNE_SWAP_SURROUND, /* swap master and surround controls */
 348         AC97_TUNE_AD_SHARING,   /* for AD1985, turn on OMS bit and use headphone */
 349         AC97_TUNE_ALC_JACK,     /* for Realtek, enable JACK detection */
 350         AC97_TUNE_INV_EAPD,     /* inverted EAPD implementation */
 351         AC97_TUNE_MUTE_LED,     /* EAPD bit works as mute LED */
 352         AC97_TUNE_HP_MUTE_LED,  /* EAPD bit works as mute LED, use headphone control as master */
 353 };
 354 
 355 struct ac97_quirk {
 356         unsigned short subvendor; /* PCI subsystem vendor id */
 357         unsigned short subdevice; /* PCI subsystem device id */
 358         unsigned short mask;    /* device id bit mask, 0 = accept all */
 359         unsigned int codec_id;  /* codec id (if any), 0 = accept all */
 360         const char *name;       /* name shown as info */
 361         int type;               /* quirk type above */
 362 };
 363 
 364 int snd_ac97_tune_hardware(struct snd_ac97 *ac97,
 365                            const struct ac97_quirk *quirk,
 366                            const char *override);
 367 int snd_ac97_set_rate(struct snd_ac97 *ac97, int reg, unsigned int rate);
 368 
 369 /*
 370  * PCM allocation
 371  */
 372 
 373 enum ac97_pcm_cfg {
 374         AC97_PCM_CFG_FRONT = 2,
 375         AC97_PCM_CFG_REAR = 10,         /* alias surround */
 376         AC97_PCM_CFG_LFE = 11,          /* center + lfe */
 377         AC97_PCM_CFG_40 = 4,            /* front + rear */
 378         AC97_PCM_CFG_51 = 6,            /* front + rear + center/lfe */
 379         AC97_PCM_CFG_SPDIF = 20
 380 };
 381 
 382 struct ac97_pcm {
 383         struct snd_ac97_bus *bus;
 384         unsigned int stream: 1,            /* stream type: 1 = capture */
 385                      exclusive: 1,         /* exclusive mode, don't override with other pcms */
 386                      copy_flag: 1,         /* lowlevel driver must fill all entries */
 387                      spdif: 1;             /* spdif pcm */
 388         unsigned short aslots;             /* active slots */
 389         unsigned short cur_dbl;            /* current double-rate state */
 390         unsigned int rates;                /* available rates */
 391         struct {
 392                 unsigned short slots;      /* driver input: requested AC97 slot numbers */
 393                 unsigned short rslots[4];  /* allocated slots per codecs */
 394                 unsigned char rate_table[4];
 395                 struct snd_ac97 *codec[4];         /* allocated codecs */
 396         } r[2];                            /* 0 = standard rates, 1 = double rates */
 397         unsigned long private_value;       /* used by the hardware driver */
 398 };
 399 
 400 int snd_ac97_pcm_assign(struct snd_ac97_bus *ac97,
 401                         unsigned short pcms_count,
 402                         const struct ac97_pcm *pcms);
 403 int snd_ac97_pcm_open(struct ac97_pcm *pcm, unsigned int rate,
 404                       enum ac97_pcm_cfg cfg, unsigned short slots);
 405 int snd_ac97_pcm_close(struct ac97_pcm *pcm);
 406 int snd_ac97_pcm_double_rate_rules(struct snd_pcm_runtime *runtime);
 407 
 408 /* ad hoc AC97 device driver access */
 409 extern struct bus_type ac97_bus_type;
 410 
 411 /* AC97 platform_data adding function */
 412 static inline void snd_ac97_dev_add_pdata(struct snd_ac97 *ac97, void *data)
 413 {
 414         ac97->dev.platform_data = data;
 415 }
 416 
 417 #endif /* __SOUND_AC97_CODEC_H */