1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * HD-audio core stuff 4 */ 5 6 #ifndef __SOUND_HDAUDIO_H 7 #define __SOUND_HDAUDIO_H 8 9 #include <linux/device.h> 10 #include <linux/interrupt.h> 11 #include <linux/io.h> 12 #include <linux/io-64-nonatomic-lo-hi.h> 13 #include <linux/iopoll.h> 14 #include <linux/pci.h> 15 #include <linux/pm_runtime.h> 16 #include <linux/timecounter.h> 17 #include <sound/core.h> 18 #include <sound/pcm.h> 19 #include <sound/memalloc.h> 20 #include <sound/hda_verbs.h> 21 #include <drm/intel/i915_component.h> 22 23 /* codec node id */ 24 typedef u16 hda_nid_t; 25 26 struct hdac_bus; 27 struct hdac_stream; 28 struct hdac_device; 29 struct hdac_driver; 30 struct hdac_widget_tree; 31 struct hda_device_id; 32 33 /* 34 * exported bus type 35 */ 36 extern const struct bus_type snd_hda_bus_type; 37 38 /* 39 * generic arrays 40 */ 41 struct snd_array { 42 unsigned int used; 43 unsigned int alloced; 44 unsigned int elem_size; 45 unsigned int alloc_align; 46 void *list; 47 }; 48 49 /* 50 * HD-audio codec base device 51 */ 52 struct hdac_device { 53 struct device dev; 54 int type; 55 struct hdac_bus *bus; 56 unsigned int addr; /* codec address */ 57 struct list_head list; /* list point for bus codec_list */ 58 59 hda_nid_t afg; /* AFG node id */ 60 hda_nid_t mfg; /* MFG node id */ 61 62 /* ids */ 63 unsigned int vendor_id; 64 unsigned int subsystem_id; 65 unsigned int revision_id; 66 unsigned int afg_function_id; 67 unsigned int mfg_function_id; 68 unsigned int afg_unsol:1; 69 unsigned int mfg_unsol:1; 70 71 unsigned int power_caps; /* FG power caps */ 72 73 const char *vendor_name; /* codec vendor name */ 74 const char *chip_name; /* codec chip name */ 75 76 /* verb exec op override */ 77 int (*exec_verb)(struct hdac_device *dev, unsigned int cmd, 78 unsigned int flags, unsigned int *res); 79 80 /* widgets */ 81 unsigned int num_nodes; 82 hda_nid_t start_nid, end_nid; 83 84 /* misc flags */ 85 atomic_t in_pm; /* suspend/resume being performed */ 86 87 /* sysfs */ 88 struct mutex widget_lock; 89 struct hdac_widget_tree *widgets; 90 91 /* regmap */ 92 struct regmap *regmap; 93 struct mutex regmap_lock; 94 struct snd_array vendor_verbs; 95 bool lazy_cache:1; /* don't wake up for writes */ 96 bool caps_overwriting:1; /* caps overwrite being in process */ 97 bool cache_coef:1; /* cache COEF read/write too */ 98 unsigned int registered:1; /* codec was registered */ 99 }; 100 101 /* device/driver type used for matching */ 102 enum { 103 HDA_DEV_CORE, 104 HDA_DEV_LEGACY, 105 HDA_DEV_ASOC, 106 }; 107 108 enum { 109 SND_SKL_PCI_BIND_AUTO, /* automatic selection based on pci class */ 110 SND_SKL_PCI_BIND_LEGACY,/* bind only with legacy driver */ 111 SND_SKL_PCI_BIND_ASOC /* bind only with ASoC driver */ 112 }; 113 114 /* direction */ 115 enum { 116 HDA_INPUT, HDA_OUTPUT 117 }; 118 119 #define dev_to_hdac_dev(_dev) container_of(_dev, struct hdac_device, dev) 120 121 int snd_hdac_device_init(struct hdac_device *dev, struct hdac_bus *bus, 122 const char *name, unsigned int addr); 123 void snd_hdac_device_exit(struct hdac_device *dev); 124 int snd_hdac_device_register(struct hdac_device *codec); 125 void snd_hdac_device_unregister(struct hdac_device *codec); 126 int snd_hdac_device_set_chip_name(struct hdac_device *codec, const char *name); 127 int snd_hdac_codec_modalias(const struct hdac_device *hdac, char *buf, size_t size); 128 129 int snd_hdac_refresh_widgets(struct hdac_device *codec); 130 131 int snd_hdac_read(struct hdac_device *codec, hda_nid_t nid, 132 unsigned int verb, unsigned int parm, unsigned int *res); 133 int _snd_hdac_read_parm(struct hdac_device *codec, hda_nid_t nid, int parm, 134 unsigned int *res); 135 int snd_hdac_read_parm_uncached(struct hdac_device *codec, hda_nid_t nid, 136 int parm); 137 int snd_hdac_override_parm(struct hdac_device *codec, hda_nid_t nid, 138 unsigned int parm, unsigned int val); 139 int snd_hdac_get_connections(struct hdac_device *codec, hda_nid_t nid, 140 hda_nid_t *conn_list, int max_conns); 141 int snd_hdac_get_sub_nodes(struct hdac_device *codec, hda_nid_t nid, 142 hda_nid_t *start_id); 143 unsigned int snd_hdac_stream_format_bits(snd_pcm_format_t format, snd_pcm_subformat_t subformat, 144 unsigned int maxbits); 145 unsigned int snd_hdac_stream_format(unsigned int channels, unsigned int bits, unsigned int rate); 146 unsigned int snd_hdac_spdif_stream_format(unsigned int channels, unsigned int bits, 147 unsigned int rate, unsigned short spdif_ctls); 148 int snd_hdac_query_supported_pcm(struct hdac_device *codec, hda_nid_t nid, 149 u32 *ratesp, u64 *formatsp, u32 *subformatsp, 150 unsigned int *bpsp); 151 bool snd_hdac_is_supported_format(struct hdac_device *codec, hda_nid_t nid, 152 unsigned int format); 153 154 int snd_hdac_codec_read(struct hdac_device *hdac, hda_nid_t nid, 155 int flags, unsigned int verb, unsigned int parm); 156 int snd_hdac_codec_write(struct hdac_device *hdac, hda_nid_t nid, 157 int flags, unsigned int verb, unsigned int parm); 158 bool snd_hdac_check_power_state(struct hdac_device *hdac, 159 hda_nid_t nid, unsigned int target_state); 160 unsigned int snd_hdac_sync_power_state(struct hdac_device *hdac, 161 hda_nid_t nid, unsigned int target_state); 162 /** 163 * snd_hdac_read_parm - read a codec parameter 164 * @codec: the codec object 165 * @nid: NID to read a parameter 166 * @parm: parameter to read 167 * 168 * Returns -1 for error. If you need to distinguish the error more 169 * strictly, use _snd_hdac_read_parm() directly. 170 */ snd_hdac_read_parm(struct hdac_device * codec,hda_nid_t nid,int parm)171 static inline int snd_hdac_read_parm(struct hdac_device *codec, hda_nid_t nid, 172 int parm) 173 { 174 unsigned int val; 175 176 return _snd_hdac_read_parm(codec, nid, parm, &val) < 0 ? -1 : val; 177 } 178 179 #ifdef CONFIG_PM 180 int snd_hdac_power_up(struct hdac_device *codec); 181 int snd_hdac_power_down(struct hdac_device *codec); 182 int snd_hdac_power_up_pm(struct hdac_device *codec); 183 int snd_hdac_power_down_pm(struct hdac_device *codec); 184 int snd_hdac_keep_power_up(struct hdac_device *codec); 185 186 /* call this at entering into suspend/resume callbacks in codec driver */ snd_hdac_enter_pm(struct hdac_device * codec)187 static inline void snd_hdac_enter_pm(struct hdac_device *codec) 188 { 189 atomic_inc(&codec->in_pm); 190 } 191 192 /* call this at leaving from suspend/resume callbacks in codec driver */ snd_hdac_leave_pm(struct hdac_device * codec)193 static inline void snd_hdac_leave_pm(struct hdac_device *codec) 194 { 195 atomic_dec(&codec->in_pm); 196 } 197 snd_hdac_is_in_pm(struct hdac_device * codec)198 static inline bool snd_hdac_is_in_pm(struct hdac_device *codec) 199 { 200 return atomic_read(&codec->in_pm); 201 } 202 snd_hdac_is_power_on(struct hdac_device * codec)203 static inline bool snd_hdac_is_power_on(struct hdac_device *codec) 204 { 205 return !pm_runtime_suspended(&codec->dev); 206 } 207 #else snd_hdac_power_up(struct hdac_device * codec)208 static inline int snd_hdac_power_up(struct hdac_device *codec) { return 0; } snd_hdac_power_down(struct hdac_device * codec)209 static inline int snd_hdac_power_down(struct hdac_device *codec) { return 0; } snd_hdac_power_up_pm(struct hdac_device * codec)210 static inline int snd_hdac_power_up_pm(struct hdac_device *codec) { return 0; } snd_hdac_power_down_pm(struct hdac_device * codec)211 static inline int snd_hdac_power_down_pm(struct hdac_device *codec) { return 0; } snd_hdac_keep_power_up(struct hdac_device * codec)212 static inline int snd_hdac_keep_power_up(struct hdac_device *codec) { return 0; } snd_hdac_enter_pm(struct hdac_device * codec)213 static inline void snd_hdac_enter_pm(struct hdac_device *codec) {} snd_hdac_leave_pm(struct hdac_device * codec)214 static inline void snd_hdac_leave_pm(struct hdac_device *codec) {} snd_hdac_is_in_pm(struct hdac_device * codec)215 static inline bool snd_hdac_is_in_pm(struct hdac_device *codec) { return false; } snd_hdac_is_power_on(struct hdac_device * codec)216 static inline bool snd_hdac_is_power_on(struct hdac_device *codec) { return true; } 217 #endif 218 219 /* 220 * HD-audio codec base driver 221 */ 222 struct hdac_driver { 223 struct device_driver driver; 224 int type; 225 const struct hda_device_id *id_table; 226 int (*match)(struct hdac_device *dev, struct hdac_driver *drv); 227 void (*unsol_event)(struct hdac_device *dev, unsigned int event); 228 229 /* fields used by ext bus APIs */ 230 int (*probe)(struct hdac_device *dev); 231 int (*remove)(struct hdac_device *dev); 232 void (*shutdown)(struct hdac_device *dev); 233 }; 234 235 #define drv_to_hdac_driver(_drv) container_of(_drv, struct hdac_driver, driver) 236 237 const struct hda_device_id * 238 hdac_get_device_id(struct hdac_device *hdev, struct hdac_driver *drv); 239 240 /* 241 * Bus verb operators 242 */ 243 struct hdac_bus_ops { 244 /* send a single command */ 245 int (*command)(struct hdac_bus *bus, unsigned int cmd); 246 /* get a response from the last command */ 247 int (*get_response)(struct hdac_bus *bus, unsigned int addr, 248 unsigned int *res); 249 /* notify of codec link power-up/down */ 250 void (*link_power)(struct hdac_device *hdev, bool enable); 251 }; 252 253 /* 254 * ops used for ASoC HDA codec drivers 255 */ 256 struct hdac_ext_bus_ops { 257 int (*hdev_attach)(struct hdac_device *hdev); 258 int (*hdev_detach)(struct hdac_device *hdev); 259 }; 260 261 #define HDA_UNSOL_QUEUE_SIZE 64 262 #define HDA_MAX_CODECS 8 /* limit by controller side */ 263 264 /* 265 * CORB/RIRB 266 * 267 * Each CORB entry is 4byte, RIRB is 8byte 268 */ 269 struct hdac_rb { 270 __le32 *buf; /* virtual address of CORB/RIRB buffer */ 271 dma_addr_t addr; /* physical address of CORB/RIRB buffer */ 272 unsigned short rp, wp; /* RIRB read/write pointers */ 273 int cmds[HDA_MAX_CODECS]; /* number of pending requests */ 274 u32 res[HDA_MAX_CODECS]; /* last read value */ 275 }; 276 277 /* 278 * HD-audio bus base driver 279 * 280 * @ppcap: pp capabilities pointer 281 * @spbcap: SPIB capabilities pointer 282 * @mlcap: MultiLink capabilities pointer 283 * @gtscap: gts capabilities pointer 284 * @drsmcap: dma resume capabilities pointer 285 * @num_streams: streams supported 286 * @idx: HDA link index 287 * @hlink_list: link list of HDA links 288 * @lock: lock for link and display power mgmt 289 * @cmd_dma_state: state of cmd DMAs: CORB and RIRB 290 */ 291 struct hdac_bus { 292 struct device *dev; 293 const struct hdac_bus_ops *ops; 294 const struct hdac_ext_bus_ops *ext_ops; 295 296 /* h/w resources */ 297 unsigned long addr; 298 void __iomem *remap_addr; 299 int irq; 300 301 void __iomem *ppcap; 302 void __iomem *spbcap; 303 void __iomem *mlcap; 304 void __iomem *gtscap; 305 void __iomem *drsmcap; 306 307 /* codec linked list */ 308 struct list_head codec_list; 309 unsigned int num_codecs; 310 311 /* link caddr -> codec */ 312 struct hdac_device *caddr_tbl[HDA_MAX_CODEC_ADDRESS + 1]; 313 314 /* unsolicited event queue */ 315 u32 unsol_queue[HDA_UNSOL_QUEUE_SIZE * 2]; /* ring buffer */ 316 unsigned int unsol_rp, unsol_wp; 317 struct work_struct unsol_work; 318 319 /* bit flags of detected codecs */ 320 unsigned long codec_mask; 321 322 /* bit flags of powered codecs */ 323 unsigned long codec_powered; 324 325 /* CORB/RIRB */ 326 struct hdac_rb corb; 327 struct hdac_rb rirb; 328 unsigned int last_cmd[HDA_MAX_CODECS]; /* last sent command */ 329 wait_queue_head_t rirb_wq; 330 331 /* CORB/RIRB and position buffers */ 332 struct snd_dma_buffer rb; 333 struct snd_dma_buffer posbuf; 334 int dma_type; /* SNDRV_DMA_TYPE_XXX for CORB/RIRB */ 335 336 /* hdac_stream linked list */ 337 struct list_head stream_list; 338 339 /* operation state */ 340 bool chip_init:1; /* h/w initialized */ 341 342 /* behavior flags */ 343 bool aligned_mmio:1; /* aligned MMIO access */ 344 bool sync_write:1; /* sync after verb write */ 345 bool use_posbuf:1; /* use position buffer */ 346 bool snoop:1; /* enable snooping */ 347 bool align_bdle_4k:1; /* BDLE align 4K boundary */ 348 bool reverse_assign:1; /* assign devices in reverse order */ 349 bool corbrp_self_clear:1; /* CORBRP clears itself after reset */ 350 bool polling_mode:1; 351 bool needs_damn_long_delay:1; 352 bool not_use_interrupts:1; /* prohibiting the RIRB IRQ */ 353 bool access_sdnctl_in_dword:1; /* accessing the sdnctl register by dword */ 354 bool use_pio_for_commands:1; /* Use PIO instead of CORB for commands */ 355 356 int poll_count; 357 358 int bdl_pos_adj; /* BDL position adjustment */ 359 360 /* delay time in us for dma stop */ 361 unsigned int dma_stop_delay; 362 363 /* locks */ 364 spinlock_t reg_lock; 365 struct mutex cmd_mutex; 366 struct mutex lock; 367 368 /* DRM component interface */ 369 struct drm_audio_component *audio_component; 370 long display_power_status; 371 unsigned long display_power_active; 372 373 /* parameters required for enhanced capabilities */ 374 int num_streams; 375 int idx; 376 377 /* link management */ 378 struct list_head hlink_list; 379 bool cmd_dma_state; 380 381 /* factor used to derive STRIPE control value */ 382 unsigned int sdo_limit; 383 }; 384 385 int snd_hdac_bus_init(struct hdac_bus *bus, struct device *dev, 386 const struct hdac_bus_ops *ops); 387 void snd_hdac_bus_exit(struct hdac_bus *bus); 388 int snd_hdac_bus_exec_verb_unlocked(struct hdac_bus *bus, unsigned int addr, 389 unsigned int cmd, unsigned int *res); 390 391 void snd_hdac_codec_link_up(struct hdac_device *codec); 392 void snd_hdac_codec_link_down(struct hdac_device *codec); 393 394 int snd_hdac_bus_send_cmd(struct hdac_bus *bus, unsigned int val); 395 int snd_hdac_bus_get_response(struct hdac_bus *bus, unsigned int addr, 396 unsigned int *res); 397 int snd_hdac_bus_parse_capabilities(struct hdac_bus *bus); 398 399 bool snd_hdac_bus_init_chip(struct hdac_bus *bus, bool full_reset); 400 void snd_hdac_bus_stop_chip(struct hdac_bus *bus); 401 void snd_hdac_bus_init_cmd_io(struct hdac_bus *bus); 402 void snd_hdac_bus_stop_cmd_io(struct hdac_bus *bus); 403 void snd_hdac_bus_enter_link_reset(struct hdac_bus *bus); 404 void snd_hdac_bus_exit_link_reset(struct hdac_bus *bus); 405 int snd_hdac_bus_reset_link(struct hdac_bus *bus, bool full_reset); 406 void snd_hdac_bus_link_power(struct hdac_device *hdev, bool enable); 407 408 void snd_hdac_bus_update_rirb(struct hdac_bus *bus); 409 int snd_hdac_bus_handle_stream_irq(struct hdac_bus *bus, unsigned int status, 410 void (*ack)(struct hdac_bus *, 411 struct hdac_stream *)); 412 413 int snd_hdac_bus_alloc_stream_pages(struct hdac_bus *bus); 414 void snd_hdac_bus_free_stream_pages(struct hdac_bus *bus); 415 416 #ifdef CONFIG_SND_HDA_ALIGNED_MMIO 417 unsigned int snd_hdac_aligned_read(void __iomem *addr, unsigned int mask); 418 void snd_hdac_aligned_write(unsigned int val, void __iomem *addr, 419 unsigned int mask); 420 #define snd_hdac_aligned_mmio(bus) (bus)->aligned_mmio 421 #else 422 #define snd_hdac_aligned_mmio(bus) false 423 #define snd_hdac_aligned_read(addr, mask) 0 424 #define snd_hdac_aligned_write(val, addr, mask) do {} while (0) 425 #endif 426 snd_hdac_reg_writeb(struct hdac_bus * bus,void __iomem * addr,u8 val)427 static inline void snd_hdac_reg_writeb(struct hdac_bus *bus, void __iomem *addr, 428 u8 val) 429 { 430 if (snd_hdac_aligned_mmio(bus)) 431 snd_hdac_aligned_write(val, addr, 0xff); 432 else 433 writeb(val, addr); 434 } 435 snd_hdac_reg_writew(struct hdac_bus * bus,void __iomem * addr,u16 val)436 static inline void snd_hdac_reg_writew(struct hdac_bus *bus, void __iomem *addr, 437 u16 val) 438 { 439 if (snd_hdac_aligned_mmio(bus)) 440 snd_hdac_aligned_write(val, addr, 0xffff); 441 else 442 writew(val, addr); 443 } 444 snd_hdac_reg_readb(struct hdac_bus * bus,void __iomem * addr)445 static inline u8 snd_hdac_reg_readb(struct hdac_bus *bus, void __iomem *addr) 446 { 447 return snd_hdac_aligned_mmio(bus) ? 448 snd_hdac_aligned_read(addr, 0xff) : readb(addr); 449 } 450 snd_hdac_reg_readw(struct hdac_bus * bus,void __iomem * addr)451 static inline u16 snd_hdac_reg_readw(struct hdac_bus *bus, void __iomem *addr) 452 { 453 return snd_hdac_aligned_mmio(bus) ? 454 snd_hdac_aligned_read(addr, 0xffff) : readw(addr); 455 } 456 457 #define snd_hdac_reg_writel(bus, addr, val) writel(val, addr) 458 #define snd_hdac_reg_readl(bus, addr) readl(addr) 459 #define snd_hdac_reg_writeq(bus, addr, val) writeq(val, addr) 460 #define snd_hdac_reg_readq(bus, addr) readq(addr) 461 462 /* 463 * macros for easy use 464 */ 465 #define _snd_hdac_chip_writeb(chip, reg, value) \ 466 snd_hdac_reg_writeb(chip, (chip)->remap_addr + (reg), value) 467 #define _snd_hdac_chip_readb(chip, reg) \ 468 snd_hdac_reg_readb(chip, (chip)->remap_addr + (reg)) 469 #define _snd_hdac_chip_writew(chip, reg, value) \ 470 snd_hdac_reg_writew(chip, (chip)->remap_addr + (reg), value) 471 #define _snd_hdac_chip_readw(chip, reg) \ 472 snd_hdac_reg_readw(chip, (chip)->remap_addr + (reg)) 473 #define _snd_hdac_chip_writel(chip, reg, value) \ 474 snd_hdac_reg_writel(chip, (chip)->remap_addr + (reg), value) 475 #define _snd_hdac_chip_readl(chip, reg) \ 476 snd_hdac_reg_readl(chip, (chip)->remap_addr + (reg)) 477 478 /* read/write a register, pass without AZX_REG_ prefix */ 479 #define snd_hdac_chip_writel(chip, reg, value) \ 480 _snd_hdac_chip_writel(chip, AZX_REG_ ## reg, value) 481 #define snd_hdac_chip_writew(chip, reg, value) \ 482 _snd_hdac_chip_writew(chip, AZX_REG_ ## reg, value) 483 #define snd_hdac_chip_writeb(chip, reg, value) \ 484 _snd_hdac_chip_writeb(chip, AZX_REG_ ## reg, value) 485 #define snd_hdac_chip_readl(chip, reg) \ 486 _snd_hdac_chip_readl(chip, AZX_REG_ ## reg) 487 #define snd_hdac_chip_readw(chip, reg) \ 488 _snd_hdac_chip_readw(chip, AZX_REG_ ## reg) 489 #define snd_hdac_chip_readb(chip, reg) \ 490 _snd_hdac_chip_readb(chip, AZX_REG_ ## reg) 491 492 /* update a register, pass without AZX_REG_ prefix */ 493 #define snd_hdac_chip_updatel(chip, reg, mask, val) \ 494 snd_hdac_chip_writel(chip, reg, \ 495 (snd_hdac_chip_readl(chip, reg) & ~(mask)) | (val)) 496 #define snd_hdac_chip_updatew(chip, reg, mask, val) \ 497 snd_hdac_chip_writew(chip, reg, \ 498 (snd_hdac_chip_readw(chip, reg) & ~(mask)) | (val)) 499 #define snd_hdac_chip_updateb(chip, reg, mask, val) \ 500 snd_hdac_chip_writeb(chip, reg, \ 501 (snd_hdac_chip_readb(chip, reg) & ~(mask)) | (val)) 502 503 /* update register macro */ 504 #define snd_hdac_updatel(addr, reg, mask, val) \ 505 writel(((readl(addr + reg) & ~(mask)) | (val)), addr + reg) 506 507 #define snd_hdac_updatew(addr, reg, mask, val) \ 508 writew(((readw(addr + reg) & ~(mask)) | (val)), addr + reg) 509 510 /* 511 * HD-audio stream 512 */ 513 struct hdac_stream { 514 struct hdac_bus *bus; 515 struct snd_dma_buffer bdl; /* BDL buffer */ 516 __le32 *posbuf; /* position buffer pointer */ 517 int direction; /* playback / capture (SNDRV_PCM_STREAM_*) */ 518 519 unsigned int bufsize; /* size of the play buffer in bytes */ 520 unsigned int period_bytes; /* size of the period in bytes */ 521 unsigned int frags; /* number for period in the play buffer */ 522 unsigned int fifo_size; /* FIFO size */ 523 524 void __iomem *sd_addr; /* stream descriptor pointer */ 525 526 void __iomem *spib_addr; /* software position in buffers stream pointer */ 527 void __iomem *fifo_addr; /* software position Max fifos stream pointer */ 528 529 void __iomem *dpibr_addr; /* DMA position in buffer resume pointer */ 530 u32 dpib; /* DMA position in buffer */ 531 u32 lpib; /* Linear position in buffer */ 532 533 u32 sd_int_sta_mask; /* stream int status mask */ 534 535 /* pcm support */ 536 struct snd_pcm_substream *substream; /* assigned substream, 537 * set in PCM open 538 */ 539 struct snd_compr_stream *cstream; 540 unsigned int format_val; /* format value to be set in the 541 * controller and the codec 542 */ 543 unsigned char stream_tag; /* assigned stream */ 544 unsigned char index; /* stream index */ 545 int assigned_key; /* last device# key assigned to */ 546 547 bool opened:1; 548 bool running:1; 549 bool prepared:1; 550 bool no_period_wakeup:1; 551 bool locked:1; 552 bool stripe:1; /* apply stripe control */ 553 554 u64 curr_pos; 555 /* timestamp */ 556 unsigned long start_wallclk; /* start + minimum wallclk */ 557 unsigned long period_wallclk; /* wallclk for period */ 558 struct timecounter tc; 559 struct cyclecounter cc; 560 int delay_negative_threshold; 561 562 struct list_head list; 563 #ifdef CONFIG_SND_HDA_DSP_LOADER 564 /* DSP access mutex */ 565 struct mutex dsp_mutex; 566 #endif 567 }; 568 569 void snd_hdac_stream_init(struct hdac_bus *bus, struct hdac_stream *azx_dev, 570 int idx, int direction, int tag); 571 struct hdac_stream *snd_hdac_stream_assign(struct hdac_bus *bus, 572 struct snd_pcm_substream *substream); 573 void snd_hdac_stream_release_locked(struct hdac_stream *azx_dev); 574 void snd_hdac_stream_release(struct hdac_stream *azx_dev); 575 struct hdac_stream *snd_hdac_get_stream(struct hdac_bus *bus, 576 int dir, int stream_tag); 577 578 int snd_hdac_stream_setup(struct hdac_stream *azx_dev, bool code_loading); 579 void snd_hdac_stream_cleanup(struct hdac_stream *azx_dev); 580 int snd_hdac_stream_setup_periods(struct hdac_stream *azx_dev); 581 int snd_hdac_stream_set_params(struct hdac_stream *azx_dev, 582 unsigned int format_val); 583 void snd_hdac_stream_start(struct hdac_stream *azx_dev); 584 void snd_hdac_stream_stop(struct hdac_stream *azx_dev); 585 void snd_hdac_stop_streams(struct hdac_bus *bus); 586 void snd_hdac_stop_streams_and_chip(struct hdac_bus *bus); 587 void snd_hdac_stream_reset(struct hdac_stream *azx_dev); 588 void snd_hdac_stream_sync_trigger(struct hdac_stream *azx_dev, bool set, 589 unsigned int streams, unsigned int reg); 590 void snd_hdac_stream_sync(struct hdac_stream *azx_dev, bool start, 591 unsigned int streams); 592 void snd_hdac_stream_timecounter_init(struct hdac_stream *azx_dev, 593 unsigned int streams, bool start); 594 int snd_hdac_get_stream_stripe_ctl(struct hdac_bus *bus, 595 struct snd_pcm_substream *substream); 596 597 void snd_hdac_stream_spbcap_enable(struct hdac_bus *chip, 598 bool enable, int index); 599 int snd_hdac_stream_set_spib(struct hdac_bus *bus, 600 struct hdac_stream *azx_dev, u32 value); 601 int snd_hdac_stream_get_spbmaxfifo(struct hdac_bus *bus, 602 struct hdac_stream *azx_dev); 603 void snd_hdac_stream_drsm_enable(struct hdac_bus *bus, 604 bool enable, int index); 605 int snd_hdac_stream_wait_drsm(struct hdac_stream *azx_dev); 606 int snd_hdac_stream_set_dpibr(struct hdac_bus *bus, 607 struct hdac_stream *azx_dev, u32 value); 608 int snd_hdac_stream_set_lpib(struct hdac_stream *azx_dev, u32 value); 609 610 /* 611 * macros for easy use 612 */ 613 /* read/write a register, pass without AZX_REG_ prefix */ 614 #define snd_hdac_stream_writel(dev, reg, value) \ 615 snd_hdac_reg_writel((dev)->bus, (dev)->sd_addr + AZX_REG_ ## reg, value) 616 #define snd_hdac_stream_writew(dev, reg, value) \ 617 snd_hdac_reg_writew((dev)->bus, (dev)->sd_addr + AZX_REG_ ## reg, value) 618 #define snd_hdac_stream_writeb(dev, reg, value) \ 619 snd_hdac_reg_writeb((dev)->bus, (dev)->sd_addr + AZX_REG_ ## reg, value) 620 #define snd_hdac_stream_readl(dev, reg) \ 621 snd_hdac_reg_readl((dev)->bus, (dev)->sd_addr + AZX_REG_ ## reg) 622 #define snd_hdac_stream_readw(dev, reg) \ 623 snd_hdac_reg_readw((dev)->bus, (dev)->sd_addr + AZX_REG_ ## reg) 624 #define snd_hdac_stream_readb(dev, reg) \ 625 snd_hdac_reg_readb((dev)->bus, (dev)->sd_addr + AZX_REG_ ## reg) 626 #define snd_hdac_stream_readb_poll(dev, reg, val, cond, delay_us, timeout_us) \ 627 read_poll_timeout_atomic(snd_hdac_reg_readb, val, cond, delay_us, timeout_us, \ 628 false, (dev)->bus, (dev)->sd_addr + AZX_REG_ ## reg) 629 #define snd_hdac_stream_readw_poll(dev, reg, val, cond, delay_us, timeout_us) \ 630 read_poll_timeout_atomic(snd_hdac_reg_readw, val, cond, delay_us, timeout_us, \ 631 false, (dev)->bus, (dev)->sd_addr + AZX_REG_ ## reg) 632 #define snd_hdac_stream_readl_poll(dev, reg, val, cond, delay_us, timeout_us) \ 633 read_poll_timeout_atomic(snd_hdac_reg_readl, val, cond, delay_us, timeout_us, \ 634 false, (dev)->bus, (dev)->sd_addr + AZX_REG_ ## reg) 635 636 /* update a register, pass without AZX_REG_ prefix */ 637 #define snd_hdac_stream_updatel(dev, reg, mask, val) \ 638 snd_hdac_stream_writel(dev, reg, \ 639 (snd_hdac_stream_readl(dev, reg) & \ 640 ~(mask)) | (val)) 641 #define snd_hdac_stream_updatew(dev, reg, mask, val) \ 642 snd_hdac_stream_writew(dev, reg, \ 643 (snd_hdac_stream_readw(dev, reg) & \ 644 ~(mask)) | (val)) 645 #define snd_hdac_stream_updateb(dev, reg, mask, val) \ 646 snd_hdac_stream_writeb(dev, reg, \ 647 (snd_hdac_stream_readb(dev, reg) & \ 648 ~(mask)) | (val)) 649 650 #ifdef CONFIG_SND_HDA_DSP_LOADER 651 /* DSP lock helpers */ 652 #define snd_hdac_dsp_lock_init(dev) mutex_init(&(dev)->dsp_mutex) 653 #define snd_hdac_dsp_lock(dev) mutex_lock(&(dev)->dsp_mutex) 654 #define snd_hdac_dsp_unlock(dev) mutex_unlock(&(dev)->dsp_mutex) 655 #define snd_hdac_stream_is_locked(dev) ((dev)->locked) 656 /* DSP loader helpers */ 657 int snd_hdac_dsp_prepare(struct hdac_stream *azx_dev, unsigned int format, 658 unsigned int byte_size, struct snd_dma_buffer *bufp); 659 void snd_hdac_dsp_trigger(struct hdac_stream *azx_dev, bool start); 660 void snd_hdac_dsp_cleanup(struct hdac_stream *azx_dev, 661 struct snd_dma_buffer *dmab); 662 #else /* CONFIG_SND_HDA_DSP_LOADER */ 663 #define snd_hdac_dsp_lock_init(dev) do {} while (0) 664 #define snd_hdac_dsp_lock(dev) do {} while (0) 665 #define snd_hdac_dsp_unlock(dev) do {} while (0) 666 #define snd_hdac_stream_is_locked(dev) 0 667 668 static inline int snd_hdac_dsp_prepare(struct hdac_stream * azx_dev,unsigned int format,unsigned int byte_size,struct snd_dma_buffer * bufp)669 snd_hdac_dsp_prepare(struct hdac_stream *azx_dev, unsigned int format, 670 unsigned int byte_size, struct snd_dma_buffer *bufp) 671 { 672 return 0; 673 } 674 snd_hdac_dsp_trigger(struct hdac_stream * azx_dev,bool start)675 static inline void snd_hdac_dsp_trigger(struct hdac_stream *azx_dev, bool start) 676 { 677 } 678 snd_hdac_dsp_cleanup(struct hdac_stream * azx_dev,struct snd_dma_buffer * dmab)679 static inline void snd_hdac_dsp_cleanup(struct hdac_stream *azx_dev, 680 struct snd_dma_buffer *dmab) 681 { 682 } 683 #endif /* CONFIG_SND_HDA_DSP_LOADER */ 684 685 686 /* 687 * generic array helpers 688 */ 689 void *snd_array_new(struct snd_array *array); 690 void snd_array_free(struct snd_array *array); snd_array_init(struct snd_array * array,unsigned int size,unsigned int align)691 static inline void snd_array_init(struct snd_array *array, unsigned int size, 692 unsigned int align) 693 { 694 array->elem_size = size; 695 array->alloc_align = align; 696 } 697 snd_array_elem(struct snd_array * array,unsigned int idx)698 static inline void *snd_array_elem(struct snd_array *array, unsigned int idx) 699 { 700 return array->list + idx * array->elem_size; 701 } 702 snd_array_index(struct snd_array * array,void * ptr)703 static inline unsigned int snd_array_index(struct snd_array *array, void *ptr) 704 { 705 return (unsigned long)(ptr - array->list) / array->elem_size; 706 } 707 708 /* a helper macro to iterate for each snd_array element */ 709 #define snd_array_for_each(array, idx, ptr) \ 710 for ((idx) = 0, (ptr) = (array)->list; (idx) < (array)->used; \ 711 (ptr) = snd_array_elem(array, ++(idx))) 712 713 /* 714 * Device matching 715 */ 716 717 #define HDA_CONTROLLER_IS_HSW(pci) (pci_match_id((struct pci_device_id []){ \ 718 { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_HDA_HSW_0) }, \ 719 { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_HDA_HSW_2) }, \ 720 { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_HDA_HSW_3) }, \ 721 { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_HDA_BDW) }, \ 722 { } \ 723 }, pci)) 724 725 #define HDA_CONTROLLER_IS_APL(pci) (pci_match_id((struct pci_device_id []){ \ 726 { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_HDA_APL) }, \ 727 { } \ 728 }, pci)) 729 730 #define HDA_CONTROLLER_IN_GPU(pci) (pci_match_id((struct pci_device_id []){ \ 731 { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_HDA_DG1) }, \ 732 { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_HDA_DG2_0) }, \ 733 { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_HDA_DG2_1) }, \ 734 { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_HDA_DG2_2) }, \ 735 { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_HDA_BMG) }, \ 736 { } \ 737 }, pci) || HDA_CONTROLLER_IS_HSW(pci)) 738 739 #endif /* __SOUND_HDAUDIO_H */ 740