| 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 | const 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, |
| 314 | const struct snd_ac97_bus_ops *ops, |
| 315 | void *private_data, struct snd_ac97_bus **rbus); |
| 316 | /* create mixer controls */ |
| 317 | int snd_ac97_mixer(struct snd_ac97_bus *bus, struct snd_ac97_template *template, |
| 318 | struct snd_ac97 **rac97); |
| 319 | const char *snd_ac97_get_short_name(struct snd_ac97 *ac97); |
| 320 | |
| 321 | void snd_ac97_write(struct snd_ac97 *ac97, unsigned short reg, unsigned short value); |
| 322 | unsigned short snd_ac97_read(struct snd_ac97 *ac97, unsigned short reg); |
| 323 | void snd_ac97_write_cache(struct snd_ac97 *ac97, unsigned short reg, unsigned short value); |
| 324 | int snd_ac97_update(struct snd_ac97 *ac97, unsigned short reg, unsigned short value); |
| 325 | int snd_ac97_update_bits(struct snd_ac97 *ac97, unsigned short reg, unsigned short mask, unsigned short value); |
| 326 | #ifdef CONFIG_SND_AC97_POWER_SAVE |
| 327 | int snd_ac97_update_power(struct snd_ac97 *ac97, int reg, int powerup); |
| 328 | #else |
| 329 | static inline int snd_ac97_update_power(struct snd_ac97 *ac97, int reg, |
| 330 | int powerup) |
| 331 | { |
| 332 | return 0; |
| 333 | } |
| 334 | #endif |
| 335 | #ifdef CONFIG_PM |
| 336 | void snd_ac97_suspend(struct snd_ac97 *ac97); |
| 337 | void snd_ac97_resume(struct snd_ac97 *ac97); |
| 338 | #else |
| 339 | static inline void snd_ac97_suspend(struct snd_ac97 *ac97) {} |
| 340 | static inline void snd_ac97_resume(struct snd_ac97 *ac97) {} |
| 341 | #endif |
| 342 | int snd_ac97_reset(struct snd_ac97 *ac97, bool try_warm, unsigned int id, |
| 343 | unsigned int id_mask); |
| 344 | |
| 345 | /* quirk types */ |
| 346 | enum { |
| 347 | AC97_TUNE_DEFAULT = -1, /* use default from quirk list (not valid in list) */ |
| 348 | AC97_TUNE_NONE = 0, /* nothing extra to do */ |
| 349 | AC97_TUNE_HP_ONLY, /* headphone (true line-out) control as master only */ |
| 350 | AC97_TUNE_SWAP_HP, /* swap headphone and master controls */ |
| 351 | AC97_TUNE_SWAP_SURROUND, /* swap master and surround controls */ |
| 352 | AC97_TUNE_AD_SHARING, /* for AD1985, turn on OMS bit and use headphone */ |
| 353 | AC97_TUNE_ALC_JACK, /* for Realtek, enable JACK detection */ |
| 354 | AC97_TUNE_INV_EAPD, /* inverted EAPD implementation */ |
| 355 | AC97_TUNE_MUTE_LED, /* EAPD bit works as mute LED */ |
| 356 | AC97_TUNE_HP_MUTE_LED, /* EAPD bit works as mute LED, use headphone control as master */ |
| 357 | }; |
| 358 | |
| 359 | struct ac97_quirk { |
| 360 | unsigned short subvendor; /* PCI subsystem vendor id */ |
| 361 | unsigned short subdevice; /* PCI subsystem device id */ |
| 362 | unsigned short mask; /* device id bit mask, 0 = accept all */ |
| 363 | unsigned int codec_id; /* codec id (if any), 0 = accept all */ |
| 364 | const char *name; /* name shown as info */ |
| 365 | int type; /* quirk type above */ |
| 366 | }; |
| 367 | |
| 368 | int snd_ac97_tune_hardware(struct snd_ac97 *ac97, |
| 369 | const struct ac97_quirk *quirk, |
| 370 | const char *override); |
| 371 | int snd_ac97_set_rate(struct snd_ac97 *ac97, int reg, unsigned int rate); |
| 372 | |
| 373 | /* |
| 374 | * PCM allocation |
| 375 | */ |
| 376 | |
| 377 | enum ac97_pcm_cfg { |
| 378 | AC97_PCM_CFG_FRONT = 2, |
| 379 | AC97_PCM_CFG_REAR = 10, /* alias surround */ |
| 380 | AC97_PCM_CFG_LFE = 11, /* center + lfe */ |
| 381 | AC97_PCM_CFG_40 = 4, /* front + rear */ |
| 382 | AC97_PCM_CFG_51 = 6, /* front + rear + center/lfe */ |
| 383 | AC97_PCM_CFG_SPDIF = 20 |
| 384 | }; |
| 385 | |
| 386 | struct ac97_pcm { |
| 387 | struct snd_ac97_bus *bus; |
| 388 | unsigned int stream: 1, /* stream type: 1 = capture */ |
| 389 | exclusive: 1, /* exclusive mode, don't override with other pcms */ |
| 390 | copy_flag: 1, /* lowlevel driver must fill all entries */ |
| 391 | spdif: 1; /* spdif pcm */ |
| 392 | unsigned short aslots; /* active slots */ |
| 393 | unsigned short cur_dbl; /* current double-rate state */ |
| 394 | unsigned int rates; /* available rates */ |
| 395 | struct { |
| 396 | unsigned short slots; /* driver input: requested AC97 slot numbers */ |
| 397 | unsigned short rslots[4]; /* allocated slots per codecs */ |
| 398 | unsigned char rate_table[4]; |
| 399 | struct snd_ac97 *codec[4]; /* allocated codecs */ |
| 400 | } r[2]; /* 0 = standard rates, 1 = double rates */ |
| 401 | unsigned long private_value; /* used by the hardware driver */ |
| 402 | }; |
| 403 | |
| 404 | int snd_ac97_pcm_assign(struct snd_ac97_bus *ac97, |
| 405 | unsigned short pcms_count, |
| 406 | const struct ac97_pcm *pcms); |
| 407 | int snd_ac97_pcm_open(struct ac97_pcm *pcm, unsigned int rate, |
| 408 | enum ac97_pcm_cfg cfg, unsigned short slots); |
| 409 | int snd_ac97_pcm_close(struct ac97_pcm *pcm); |
| 410 | int snd_ac97_pcm_double_rate_rules(struct snd_pcm_runtime *runtime); |
| 411 | |
| 412 | /* ad hoc AC97 device driver access */ |
| 413 | extern struct bus_type ac97_bus_type; |
| 414 | |
| 415 | /* AC97 platform_data adding function */ |
| 416 | static inline void snd_ac97_dev_add_pdata(struct snd_ac97 *ac97, void *data) |
| 417 | { |
| 418 | ac97->dev.platform_data = data; |
| 419 | } |
| 420 | |
| 421 | #endif /* __SOUND_AC97_CODEC_H */ |