hdac.c revision 230331
1/*- 2 * Copyright (c) 2006 Stephane E. Potvin <sepotvin@videotron.ca> 3 * Copyright (c) 2006 Ariff Abdullah <ariff@FreeBSD.org> 4 * Copyright (c) 2008-2012 Alexander Motin <mav@FreeBSD.org> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29/* 30 * Intel High Definition Audio (Controller) driver for FreeBSD. 31 */ 32 33#ifdef HAVE_KERNEL_OPTION_HEADERS 34#include "opt_snd.h" 35#endif 36 37#include <dev/sound/pcm/sound.h> 38#include <dev/pci/pcireg.h> 39#include <dev/pci/pcivar.h> 40 41#include <sys/ctype.h> 42#include <sys/taskqueue.h> 43 44#include <dev/sound/pci/hda/hdac_private.h> 45#include <dev/sound/pci/hda/hdac_reg.h> 46#include <dev/sound/pci/hda/hda_reg.h> 47#include <dev/sound/pci/hda/hdac.h> 48 49#define HDA_DRV_TEST_REV "20120111_0001" 50 51SND_DECLARE_FILE("$FreeBSD: head/sys/dev/sound/pci/hda/hdac.c 230331 2012-01-19 11:18:21Z mav $"); 52 53#define hdac_lock(sc) snd_mtxlock((sc)->lock) 54#define hdac_unlock(sc) snd_mtxunlock((sc)->lock) 55#define hdac_lockassert(sc) snd_mtxassert((sc)->lock) 56#define hdac_lockowned(sc) mtx_owned((sc)->lock) 57 58#define HDAC_QUIRK_64BIT (1 << 0) 59#define HDAC_QUIRK_DMAPOS (1 << 1) 60#define HDAC_QUIRK_MSI (1 << 2) 61 62static const struct { 63 char *key; 64 uint32_t value; 65} hdac_quirks_tab[] = { 66 { "64bit", HDAC_QUIRK_DMAPOS }, 67 { "dmapos", HDAC_QUIRK_DMAPOS }, 68 { "msi", HDAC_QUIRK_MSI }, 69}; 70#define HDAC_QUIRKS_TAB_LEN \ 71 (sizeof(hdac_quirks_tab) / sizeof(hdac_quirks_tab[0])) 72 73#define HDA_BDL_MIN 2 74#define HDA_BDL_MAX 256 75#define HDA_BDL_DEFAULT HDA_BDL_MIN 76 77#define HDA_BLK_MIN HDA_DMA_ALIGNMENT 78#define HDA_BLK_ALIGN (~(HDA_BLK_MIN - 1)) 79 80#define HDA_BUFSZ_MIN 4096 81#define HDA_BUFSZ_MAX 65536 82#define HDA_BUFSZ_DEFAULT 16384 83 84MALLOC_DEFINE(M_HDAC, "hdac", "HDA Controller"); 85 86static const struct { 87 uint32_t model; 88 char *desc; 89 char quirks_on; 90 char quirks_off; 91} hdac_devices[] = { 92 { HDA_INTEL_CPT, "Intel Cougar Point", 0, 0 }, 93 { HDA_INTEL_PATSBURG,"Intel Patsburg", 0, 0 }, 94 { HDA_INTEL_PPT1, "Intel Panther Point", 0, 0 }, 95 { HDA_INTEL_82801F, "Intel 82801F", 0, 0 }, 96 { HDA_INTEL_63XXESB, "Intel 631x/632xESB", 0, 0 }, 97 { HDA_INTEL_82801G, "Intel 82801G", 0, 0 }, 98 { HDA_INTEL_82801H, "Intel 82801H", 0, 0 }, 99 { HDA_INTEL_82801I, "Intel 82801I", 0, 0 }, 100 { HDA_INTEL_82801JI, "Intel 82801JI", 0, 0 }, 101 { HDA_INTEL_82801JD, "Intel 82801JD", 0, 0 }, 102 { HDA_INTEL_PCH, "Intel 5 Series/3400 Series", 0, 0 }, 103 { HDA_INTEL_PCH2, "Intel 5 Series/3400 Series", 0, 0 }, 104 { HDA_INTEL_SCH, "Intel SCH", 0, 0 }, 105 { HDA_NVIDIA_MCP51, "NVIDIA MCP51", 0, HDAC_QUIRK_MSI }, 106 { HDA_NVIDIA_MCP55, "NVIDIA MCP55", 0, HDAC_QUIRK_MSI }, 107 { HDA_NVIDIA_MCP61_1, "NVIDIA MCP61", 0, 0 }, 108 { HDA_NVIDIA_MCP61_2, "NVIDIA MCP61", 0, 0 }, 109 { HDA_NVIDIA_MCP65_1, "NVIDIA MCP65", 0, 0 }, 110 { HDA_NVIDIA_MCP65_2, "NVIDIA MCP65", 0, 0 }, 111 { HDA_NVIDIA_MCP67_1, "NVIDIA MCP67", 0, 0 }, 112 { HDA_NVIDIA_MCP67_2, "NVIDIA MCP67", 0, 0 }, 113 { HDA_NVIDIA_MCP73_1, "NVIDIA MCP73", 0, 0 }, 114 { HDA_NVIDIA_MCP73_2, "NVIDIA MCP73", 0, 0 }, 115 { HDA_NVIDIA_MCP78_1, "NVIDIA MCP78", 0, HDAC_QUIRK_64BIT }, 116 { HDA_NVIDIA_MCP78_2, "NVIDIA MCP78", 0, HDAC_QUIRK_64BIT }, 117 { HDA_NVIDIA_MCP78_3, "NVIDIA MCP78", 0, HDAC_QUIRK_64BIT }, 118 { HDA_NVIDIA_MCP78_4, "NVIDIA MCP78", 0, HDAC_QUIRK_64BIT }, 119 { HDA_NVIDIA_MCP79_1, "NVIDIA MCP79", 0, 0 }, 120 { HDA_NVIDIA_MCP79_2, "NVIDIA MCP79", 0, 0 }, 121 { HDA_NVIDIA_MCP79_3, "NVIDIA MCP79", 0, 0 }, 122 { HDA_NVIDIA_MCP79_4, "NVIDIA MCP79", 0, 0 }, 123 { HDA_NVIDIA_MCP89_1, "NVIDIA MCP89", 0, 0 }, 124 { HDA_NVIDIA_MCP89_2, "NVIDIA MCP89", 0, 0 }, 125 { HDA_NVIDIA_MCP89_3, "NVIDIA MCP89", 0, 0 }, 126 { HDA_NVIDIA_MCP89_4, "NVIDIA MCP89", 0, 0 }, 127 { HDA_NVIDIA_0BE2, "NVIDIA (0x0be2)", 0, HDAC_QUIRK_MSI }, 128 { HDA_NVIDIA_0BE3, "NVIDIA (0x0be3)", 0, HDAC_QUIRK_MSI }, 129 { HDA_NVIDIA_0BE4, "NVIDIA (0x0be4)", 0, HDAC_QUIRK_MSI }, 130 { HDA_NVIDIA_GT100, "NVIDIA GT100", 0, HDAC_QUIRK_MSI }, 131 { HDA_NVIDIA_GT104, "NVIDIA GT104", 0, HDAC_QUIRK_MSI }, 132 { HDA_NVIDIA_GT106, "NVIDIA GT106", 0, HDAC_QUIRK_MSI }, 133 { HDA_NVIDIA_GT108, "NVIDIA GT108", 0, HDAC_QUIRK_MSI }, 134 { HDA_NVIDIA_GT116, "NVIDIA GT116", 0, HDAC_QUIRK_MSI }, 135 { HDA_NVIDIA_GF119, "NVIDIA GF119", 0, 0 }, 136 { HDA_NVIDIA_GF110_1, "NVIDIA GF110", 0, HDAC_QUIRK_MSI }, 137 { HDA_NVIDIA_GF110_2, "NVIDIA GF110", 0, HDAC_QUIRK_MSI }, 138 { HDA_ATI_SB450, "ATI SB450", 0, 0 }, 139 { HDA_ATI_SB600, "ATI SB600", 0, 0 }, 140 { HDA_ATI_RS600, "ATI RS600", 0, 0 }, 141 { HDA_ATI_RS690, "ATI RS690", 0, 0 }, 142 { HDA_ATI_RS780, "ATI RS780", 0, 0 }, 143 { HDA_ATI_R600, "ATI R600", 0, 0 }, 144 { HDA_ATI_RV610, "ATI RV610", 0, 0 }, 145 { HDA_ATI_RV620, "ATI RV620", 0, 0 }, 146 { HDA_ATI_RV630, "ATI RV630", 0, 0 }, 147 { HDA_ATI_RV635, "ATI RV635", 0, 0 }, 148 { HDA_ATI_RV710, "ATI RV710", 0, 0 }, 149 { HDA_ATI_RV730, "ATI RV730", 0, 0 }, 150 { HDA_ATI_RV740, "ATI RV740", 0, 0 }, 151 { HDA_ATI_RV770, "ATI RV770", 0, 0 }, 152 { HDA_RDC_M3010, "RDC M3010", 0, 0 }, 153 { HDA_VIA_VT82XX, "VIA VT8251/8237A",0, 0 }, 154 { HDA_SIS_966, "SiS 966", 0, 0 }, 155 { HDA_ULI_M5461, "ULI M5461", 0, 0 }, 156 /* Unknown */ 157 { HDA_INTEL_ALL, "Intel", 0, 0 }, 158 { HDA_NVIDIA_ALL, "NVIDIA", 0, 0 }, 159 { HDA_ATI_ALL, "ATI", 0, 0 }, 160 { HDA_VIA_ALL, "VIA", 0, 0 }, 161 { HDA_SIS_ALL, "SiS", 0, 0 }, 162 { HDA_ULI_ALL, "ULI", 0, 0 }, 163}; 164#define HDAC_DEVICES_LEN (sizeof(hdac_devices) / sizeof(hdac_devices[0])) 165 166static const struct { 167 uint16_t vendor; 168 uint8_t reg; 169 uint8_t mask; 170 uint8_t enable; 171} hdac_pcie_snoop[] = { 172 { INTEL_VENDORID, 0x00, 0x00, 0x00 }, 173 { ATI_VENDORID, 0x42, 0xf8, 0x02 }, 174 { NVIDIA_VENDORID, 0x4e, 0xf0, 0x0f }, 175}; 176#define HDAC_PCIESNOOP_LEN \ 177 (sizeof(hdac_pcie_snoop) / sizeof(hdac_pcie_snoop[0])) 178 179/**************************************************************************** 180 * Function prototypes 181 ****************************************************************************/ 182static void hdac_intr_handler(void *); 183static int hdac_reset(struct hdac_softc *, int); 184static int hdac_get_capabilities(struct hdac_softc *); 185static void hdac_dma_cb(void *, bus_dma_segment_t *, int, int); 186static int hdac_dma_alloc(struct hdac_softc *, 187 struct hdac_dma *, bus_size_t); 188static void hdac_dma_free(struct hdac_softc *, struct hdac_dma *); 189static int hdac_mem_alloc(struct hdac_softc *); 190static void hdac_mem_free(struct hdac_softc *); 191static int hdac_irq_alloc(struct hdac_softc *); 192static void hdac_irq_free(struct hdac_softc *); 193static void hdac_corb_init(struct hdac_softc *); 194static void hdac_rirb_init(struct hdac_softc *); 195static void hdac_corb_start(struct hdac_softc *); 196static void hdac_rirb_start(struct hdac_softc *); 197 198static void hdac_attach2(void *); 199 200static uint32_t hdac_send_command(struct hdac_softc *, nid_t, uint32_t); 201 202static int hdac_probe(device_t); 203static int hdac_attach(device_t); 204static int hdac_detach(device_t); 205static int hdac_suspend(device_t); 206static int hdac_resume(device_t); 207 208static int hdac_rirb_flush(struct hdac_softc *sc); 209static int hdac_unsolq_flush(struct hdac_softc *sc); 210 211#define hdac_command(a1, a2, a3) \ 212 hdac_send_command(a1, a3, a2) 213 214/* This function surely going to make its way into upper level someday. */ 215static void 216hdac_config_fetch(struct hdac_softc *sc, uint32_t *on, uint32_t *off) 217{ 218 const char *res = NULL; 219 int i = 0, j, k, len, inv; 220 221 if (resource_string_value(device_get_name(sc->dev), 222 device_get_unit(sc->dev), "config", &res) != 0) 223 return; 224 if (!(res != NULL && strlen(res) > 0)) 225 return; 226 HDA_BOOTVERBOSE( 227 device_printf(sc->dev, "Config options:"); 228 ); 229 for (;;) { 230 while (res[i] != '\0' && 231 (res[i] == ',' || isspace(res[i]) != 0)) 232 i++; 233 if (res[i] == '\0') { 234 HDA_BOOTVERBOSE( 235 printf("\n"); 236 ); 237 return; 238 } 239 j = i; 240 while (res[j] != '\0' && 241 !(res[j] == ',' || isspace(res[j]) != 0)) 242 j++; 243 len = j - i; 244 if (len > 2 && strncmp(res + i, "no", 2) == 0) 245 inv = 2; 246 else 247 inv = 0; 248 for (k = 0; len > inv && k < HDAC_QUIRKS_TAB_LEN; k++) { 249 if (strncmp(res + i + inv, 250 hdac_quirks_tab[k].key, len - inv) != 0) 251 continue; 252 if (len - inv != strlen(hdac_quirks_tab[k].key)) 253 continue; 254 HDA_BOOTVERBOSE( 255 printf(" %s%s", (inv != 0) ? "no" : "", 256 hdac_quirks_tab[k].key); 257 ); 258 if (inv == 0) { 259 *on |= hdac_quirks_tab[k].value; 260 *on &= ~hdac_quirks_tab[k].value; 261 } else if (inv != 0) { 262 *off |= hdac_quirks_tab[k].value; 263 *off &= ~hdac_quirks_tab[k].value; 264 } 265 break; 266 } 267 i = j; 268 } 269} 270 271/**************************************************************************** 272 * void hdac_intr_handler(void *) 273 * 274 * Interrupt handler. Processes interrupts received from the hdac. 275 ****************************************************************************/ 276static void 277hdac_intr_handler(void *context) 278{ 279 struct hdac_softc *sc; 280 device_t dev; 281 uint32_t intsts; 282 uint8_t rirbsts; 283 int i; 284 285 sc = (struct hdac_softc *)context; 286 hdac_lock(sc); 287 288 /* Do we have anything to do? */ 289 intsts = HDAC_READ_4(&sc->mem, HDAC_INTSTS); 290 if ((intsts & HDAC_INTSTS_GIS) == 0) { 291 hdac_unlock(sc); 292 return; 293 } 294 295 /* Was this a controller interrupt? */ 296 if (intsts & HDAC_INTSTS_CIS) { 297 rirbsts = HDAC_READ_1(&sc->mem, HDAC_RIRBSTS); 298 /* Get as many responses that we can */ 299 while (rirbsts & HDAC_RIRBSTS_RINTFL) { 300 HDAC_WRITE_1(&sc->mem, 301 HDAC_RIRBSTS, HDAC_RIRBSTS_RINTFL); 302 hdac_rirb_flush(sc); 303 rirbsts = HDAC_READ_1(&sc->mem, HDAC_RIRBSTS); 304 } 305 if (sc->unsolq_rp != sc->unsolq_wp) 306 taskqueue_enqueue(taskqueue_thread, &sc->unsolq_task); 307 } 308 309 if (intsts & HDAC_INTSTS_SIS_MASK) { 310 for (i = 0; i < sc->num_ss; i++) { 311 if ((intsts & (1 << i)) == 0) 312 continue; 313 HDAC_WRITE_1(&sc->mem, (i << 5) + HDAC_SDSTS, 314 HDAC_SDSTS_DESE | HDAC_SDSTS_FIFOE | HDAC_SDSTS_BCIS ); 315 if ((dev = sc->streams[i].dev) != NULL) { 316 HDAC_STREAM_INTR(dev, 317 sc->streams[i].dir, sc->streams[i].stream); 318 } 319 } 320 } 321 322 HDAC_WRITE_4(&sc->mem, HDAC_INTSTS, intsts); 323 hdac_unlock(sc); 324} 325 326static void 327hdac_poll_callback(void *arg) 328{ 329 struct hdac_softc *sc = arg; 330 331 if (sc == NULL) 332 return; 333 334 hdac_lock(sc); 335 if (sc->polling == 0) { 336 hdac_unlock(sc); 337 return; 338 } 339 callout_reset(&sc->poll_callout, sc->poll_ival, 340 hdac_poll_callback, sc); 341 hdac_unlock(sc); 342 343 hdac_intr_handler(sc); 344} 345 346/**************************************************************************** 347 * int hdac_reset(hdac_softc *, int) 348 * 349 * Reset the hdac to a quiescent and known state. 350 ****************************************************************************/ 351static int 352hdac_reset(struct hdac_softc *sc, int wakeup) 353{ 354 uint32_t gctl; 355 int count, i; 356 357 /* 358 * Stop all Streams DMA engine 359 */ 360 for (i = 0; i < sc->num_iss; i++) 361 HDAC_WRITE_4(&sc->mem, HDAC_ISDCTL(sc, i), 0x0); 362 for (i = 0; i < sc->num_oss; i++) 363 HDAC_WRITE_4(&sc->mem, HDAC_OSDCTL(sc, i), 0x0); 364 for (i = 0; i < sc->num_bss; i++) 365 HDAC_WRITE_4(&sc->mem, HDAC_BSDCTL(sc, i), 0x0); 366 367 /* 368 * Stop Control DMA engines. 369 */ 370 HDAC_WRITE_1(&sc->mem, HDAC_CORBCTL, 0x0); 371 HDAC_WRITE_1(&sc->mem, HDAC_RIRBCTL, 0x0); 372 373 /* 374 * Reset DMA position buffer. 375 */ 376 HDAC_WRITE_4(&sc->mem, HDAC_DPIBLBASE, 0x0); 377 HDAC_WRITE_4(&sc->mem, HDAC_DPIBUBASE, 0x0); 378 379 /* 380 * Reset the controller. The reset must remain asserted for 381 * a minimum of 100us. 382 */ 383 gctl = HDAC_READ_4(&sc->mem, HDAC_GCTL); 384 HDAC_WRITE_4(&sc->mem, HDAC_GCTL, gctl & ~HDAC_GCTL_CRST); 385 count = 10000; 386 do { 387 gctl = HDAC_READ_4(&sc->mem, HDAC_GCTL); 388 if (!(gctl & HDAC_GCTL_CRST)) 389 break; 390 DELAY(10); 391 } while (--count); 392 if (gctl & HDAC_GCTL_CRST) { 393 device_printf(sc->dev, "Unable to put hdac in reset\n"); 394 return (ENXIO); 395 } 396 397 /* If wakeup is not requested - leave the controller in reset state. */ 398 if (!wakeup) 399 return (0); 400 401 DELAY(100); 402 gctl = HDAC_READ_4(&sc->mem, HDAC_GCTL); 403 HDAC_WRITE_4(&sc->mem, HDAC_GCTL, gctl | HDAC_GCTL_CRST); 404 count = 10000; 405 do { 406 gctl = HDAC_READ_4(&sc->mem, HDAC_GCTL); 407 if (gctl & HDAC_GCTL_CRST) 408 break; 409 DELAY(10); 410 } while (--count); 411 if (!(gctl & HDAC_GCTL_CRST)) { 412 device_printf(sc->dev, "Device stuck in reset\n"); 413 return (ENXIO); 414 } 415 416 /* 417 * Wait for codecs to finish their own reset sequence. The delay here 418 * should be of 250us but for some reasons, on it's not enough on my 419 * computer. Let's use twice as much as necessary to make sure that 420 * it's reset properly. 421 */ 422 DELAY(1000); 423 424 return (0); 425} 426 427 428/**************************************************************************** 429 * int hdac_get_capabilities(struct hdac_softc *); 430 * 431 * Retreive the general capabilities of the hdac; 432 * Number of Input Streams 433 * Number of Output Streams 434 * Number of bidirectional Streams 435 * 64bit ready 436 * CORB and RIRB sizes 437 ****************************************************************************/ 438static int 439hdac_get_capabilities(struct hdac_softc *sc) 440{ 441 uint16_t gcap; 442 uint8_t corbsize, rirbsize; 443 444 gcap = HDAC_READ_2(&sc->mem, HDAC_GCAP); 445 sc->num_iss = HDAC_GCAP_ISS(gcap); 446 sc->num_oss = HDAC_GCAP_OSS(gcap); 447 sc->num_bss = HDAC_GCAP_BSS(gcap); 448 sc->num_ss = sc->num_iss + sc->num_oss + sc->num_bss; 449 sc->num_sdo = HDAC_GCAP_NSDO(gcap); 450 sc->support_64bit = (gcap & HDAC_GCAP_64OK) != 0; 451 if (sc->quirks_on & HDAC_QUIRK_64BIT) 452 sc->support_64bit = 1; 453 else if (sc->quirks_off & HDAC_QUIRK_64BIT) 454 sc->support_64bit = 0; 455 456 corbsize = HDAC_READ_1(&sc->mem, HDAC_CORBSIZE); 457 if ((corbsize & HDAC_CORBSIZE_CORBSZCAP_256) == 458 HDAC_CORBSIZE_CORBSZCAP_256) 459 sc->corb_size = 256; 460 else if ((corbsize & HDAC_CORBSIZE_CORBSZCAP_16) == 461 HDAC_CORBSIZE_CORBSZCAP_16) 462 sc->corb_size = 16; 463 else if ((corbsize & HDAC_CORBSIZE_CORBSZCAP_2) == 464 HDAC_CORBSIZE_CORBSZCAP_2) 465 sc->corb_size = 2; 466 else { 467 device_printf(sc->dev, "%s: Invalid corb size (%x)\n", 468 __func__, corbsize); 469 return (ENXIO); 470 } 471 472 rirbsize = HDAC_READ_1(&sc->mem, HDAC_RIRBSIZE); 473 if ((rirbsize & HDAC_RIRBSIZE_RIRBSZCAP_256) == 474 HDAC_RIRBSIZE_RIRBSZCAP_256) 475 sc->rirb_size = 256; 476 else if ((rirbsize & HDAC_RIRBSIZE_RIRBSZCAP_16) == 477 HDAC_RIRBSIZE_RIRBSZCAP_16) 478 sc->rirb_size = 16; 479 else if ((rirbsize & HDAC_RIRBSIZE_RIRBSZCAP_2) == 480 HDAC_RIRBSIZE_RIRBSZCAP_2) 481 sc->rirb_size = 2; 482 else { 483 device_printf(sc->dev, "%s: Invalid rirb size (%x)\n", 484 __func__, rirbsize); 485 return (ENXIO); 486 } 487 488 HDA_BOOTVERBOSE( 489 device_printf(sc->dev, "Caps: OSS %d, ISS %d, BSS %d, " 490 "NSDO %d%s, CORB %d, RIRB %d\n", 491 sc->num_oss, sc->num_iss, sc->num_bss, 1 << sc->num_sdo, 492 sc->support_64bit ? ", 64bit" : "", 493 sc->corb_size, sc->rirb_size); 494 ); 495 496 return (0); 497} 498 499 500/**************************************************************************** 501 * void hdac_dma_cb 502 * 503 * This function is called by bus_dmamap_load when the mapping has been 504 * established. We just record the physical address of the mapping into 505 * the struct hdac_dma passed in. 506 ****************************************************************************/ 507static void 508hdac_dma_cb(void *callback_arg, bus_dma_segment_t *segs, int nseg, int error) 509{ 510 struct hdac_dma *dma; 511 512 if (error == 0) { 513 dma = (struct hdac_dma *)callback_arg; 514 dma->dma_paddr = segs[0].ds_addr; 515 } 516} 517 518 519/**************************************************************************** 520 * int hdac_dma_alloc 521 * 522 * This function allocate and setup a dma region (struct hdac_dma). 523 * It must be freed by a corresponding hdac_dma_free. 524 ****************************************************************************/ 525static int 526hdac_dma_alloc(struct hdac_softc *sc, struct hdac_dma *dma, bus_size_t size) 527{ 528 bus_size_t roundsz; 529 int result; 530 531 roundsz = roundup2(size, HDA_DMA_ALIGNMENT); 532 bzero(dma, sizeof(*dma)); 533 534 /* 535 * Create a DMA tag 536 */ 537 result = bus_dma_tag_create( 538 bus_get_dma_tag(sc->dev), /* parent */ 539 HDA_DMA_ALIGNMENT, /* alignment */ 540 0, /* boundary */ 541 (sc->support_64bit) ? BUS_SPACE_MAXADDR : 542 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 543 BUS_SPACE_MAXADDR, /* highaddr */ 544 NULL, /* filtfunc */ 545 NULL, /* fistfuncarg */ 546 roundsz, /* maxsize */ 547 1, /* nsegments */ 548 roundsz, /* maxsegsz */ 549 0, /* flags */ 550 NULL, /* lockfunc */ 551 NULL, /* lockfuncarg */ 552 &dma->dma_tag); /* dmat */ 553 if (result != 0) { 554 device_printf(sc->dev, "%s: bus_dma_tag_create failed (%x)\n", 555 __func__, result); 556 goto hdac_dma_alloc_fail; 557 } 558 559 /* 560 * Allocate DMA memory 561 */ 562 result = bus_dmamem_alloc(dma->dma_tag, (void **)&dma->dma_vaddr, 563 BUS_DMA_NOWAIT | BUS_DMA_ZERO | 564 ((sc->flags & HDAC_F_DMA_NOCACHE) ? BUS_DMA_NOCACHE : 0), 565 &dma->dma_map); 566 if (result != 0) { 567 device_printf(sc->dev, "%s: bus_dmamem_alloc failed (%x)\n", 568 __func__, result); 569 goto hdac_dma_alloc_fail; 570 } 571 572 dma->dma_size = roundsz; 573 574 /* 575 * Map the memory 576 */ 577 result = bus_dmamap_load(dma->dma_tag, dma->dma_map, 578 (void *)dma->dma_vaddr, roundsz, hdac_dma_cb, (void *)dma, 0); 579 if (result != 0 || dma->dma_paddr == 0) { 580 if (result == 0) 581 result = ENOMEM; 582 device_printf(sc->dev, "%s: bus_dmamem_load failed (%x)\n", 583 __func__, result); 584 goto hdac_dma_alloc_fail; 585 } 586 587 HDA_BOOTHVERBOSE( 588 device_printf(sc->dev, "%s: size=%ju -> roundsz=%ju\n", 589 __func__, (uintmax_t)size, (uintmax_t)roundsz); 590 ); 591 592 return (0); 593 594hdac_dma_alloc_fail: 595 hdac_dma_free(sc, dma); 596 597 return (result); 598} 599 600 601/**************************************************************************** 602 * void hdac_dma_free(struct hdac_softc *, struct hdac_dma *) 603 * 604 * Free a struct dhac_dma that has been previously allocated via the 605 * hdac_dma_alloc function. 606 ****************************************************************************/ 607static void 608hdac_dma_free(struct hdac_softc *sc, struct hdac_dma *dma) 609{ 610 if (dma->dma_map != NULL) { 611#if 0 612 /* Flush caches */ 613 bus_dmamap_sync(dma->dma_tag, dma->dma_map, 614 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 615#endif 616 bus_dmamap_unload(dma->dma_tag, dma->dma_map); 617 } 618 if (dma->dma_vaddr != NULL) { 619 bus_dmamem_free(dma->dma_tag, dma->dma_vaddr, dma->dma_map); 620 dma->dma_vaddr = NULL; 621 } 622 dma->dma_map = NULL; 623 if (dma->dma_tag != NULL) { 624 bus_dma_tag_destroy(dma->dma_tag); 625 dma->dma_tag = NULL; 626 } 627 dma->dma_size = 0; 628} 629 630/**************************************************************************** 631 * int hdac_mem_alloc(struct hdac_softc *) 632 * 633 * Allocate all the bus resources necessary to speak with the physical 634 * controller. 635 ****************************************************************************/ 636static int 637hdac_mem_alloc(struct hdac_softc *sc) 638{ 639 struct hdac_mem *mem; 640 641 mem = &sc->mem; 642 mem->mem_rid = PCIR_BAR(0); 643 mem->mem_res = bus_alloc_resource_any(sc->dev, SYS_RES_MEMORY, 644 &mem->mem_rid, RF_ACTIVE); 645 if (mem->mem_res == NULL) { 646 device_printf(sc->dev, 647 "%s: Unable to allocate memory resource\n", __func__); 648 return (ENOMEM); 649 } 650 mem->mem_tag = rman_get_bustag(mem->mem_res); 651 mem->mem_handle = rman_get_bushandle(mem->mem_res); 652 653 return (0); 654} 655 656/**************************************************************************** 657 * void hdac_mem_free(struct hdac_softc *) 658 * 659 * Free up resources previously allocated by hdac_mem_alloc. 660 ****************************************************************************/ 661static void 662hdac_mem_free(struct hdac_softc *sc) 663{ 664 struct hdac_mem *mem; 665 666 mem = &sc->mem; 667 if (mem->mem_res != NULL) 668 bus_release_resource(sc->dev, SYS_RES_MEMORY, mem->mem_rid, 669 mem->mem_res); 670 mem->mem_res = NULL; 671} 672 673/**************************************************************************** 674 * int hdac_irq_alloc(struct hdac_softc *) 675 * 676 * Allocate and setup the resources necessary for interrupt handling. 677 ****************************************************************************/ 678static int 679hdac_irq_alloc(struct hdac_softc *sc) 680{ 681 struct hdac_irq *irq; 682 int result; 683 684 irq = &sc->irq; 685 irq->irq_rid = 0x0; 686 687 if ((sc->quirks_off & HDAC_QUIRK_MSI) == 0 && 688 (result = pci_msi_count(sc->dev)) == 1 && 689 pci_alloc_msi(sc->dev, &result) == 0) 690 irq->irq_rid = 0x1; 691 692 irq->irq_res = bus_alloc_resource_any(sc->dev, SYS_RES_IRQ, 693 &irq->irq_rid, RF_SHAREABLE | RF_ACTIVE); 694 if (irq->irq_res == NULL) { 695 device_printf(sc->dev, "%s: Unable to allocate irq\n", 696 __func__); 697 goto hdac_irq_alloc_fail; 698 } 699 result = bus_setup_intr(sc->dev, irq->irq_res, INTR_MPSAFE | INTR_TYPE_AV, 700 NULL, hdac_intr_handler, sc, &irq->irq_handle); 701 if (result != 0) { 702 device_printf(sc->dev, 703 "%s: Unable to setup interrupt handler (%x)\n", 704 __func__, result); 705 goto hdac_irq_alloc_fail; 706 } 707 708 return (0); 709 710hdac_irq_alloc_fail: 711 hdac_irq_free(sc); 712 713 return (ENXIO); 714} 715 716/**************************************************************************** 717 * void hdac_irq_free(struct hdac_softc *) 718 * 719 * Free up resources previously allocated by hdac_irq_alloc. 720 ****************************************************************************/ 721static void 722hdac_irq_free(struct hdac_softc *sc) 723{ 724 struct hdac_irq *irq; 725 726 irq = &sc->irq; 727 if (irq->irq_res != NULL && irq->irq_handle != NULL) 728 bus_teardown_intr(sc->dev, irq->irq_res, irq->irq_handle); 729 if (irq->irq_res != NULL) 730 bus_release_resource(sc->dev, SYS_RES_IRQ, irq->irq_rid, 731 irq->irq_res); 732 if (irq->irq_rid == 0x1) 733 pci_release_msi(sc->dev); 734 irq->irq_handle = NULL; 735 irq->irq_res = NULL; 736 irq->irq_rid = 0x0; 737} 738 739/**************************************************************************** 740 * void hdac_corb_init(struct hdac_softc *) 741 * 742 * Initialize the corb registers for operations but do not start it up yet. 743 * The CORB engine must not be running when this function is called. 744 ****************************************************************************/ 745static void 746hdac_corb_init(struct hdac_softc *sc) 747{ 748 uint8_t corbsize; 749 uint64_t corbpaddr; 750 751 /* Setup the CORB size. */ 752 switch (sc->corb_size) { 753 case 256: 754 corbsize = HDAC_CORBSIZE_CORBSIZE(HDAC_CORBSIZE_CORBSIZE_256); 755 break; 756 case 16: 757 corbsize = HDAC_CORBSIZE_CORBSIZE(HDAC_CORBSIZE_CORBSIZE_16); 758 break; 759 case 2: 760 corbsize = HDAC_CORBSIZE_CORBSIZE(HDAC_CORBSIZE_CORBSIZE_2); 761 break; 762 default: 763 panic("%s: Invalid CORB size (%x)\n", __func__, sc->corb_size); 764 } 765 HDAC_WRITE_1(&sc->mem, HDAC_CORBSIZE, corbsize); 766 767 /* Setup the CORB Address in the hdac */ 768 corbpaddr = (uint64_t)sc->corb_dma.dma_paddr; 769 HDAC_WRITE_4(&sc->mem, HDAC_CORBLBASE, (uint32_t)corbpaddr); 770 HDAC_WRITE_4(&sc->mem, HDAC_CORBUBASE, (uint32_t)(corbpaddr >> 32)); 771 772 /* Set the WP and RP */ 773 sc->corb_wp = 0; 774 HDAC_WRITE_2(&sc->mem, HDAC_CORBWP, sc->corb_wp); 775 HDAC_WRITE_2(&sc->mem, HDAC_CORBRP, HDAC_CORBRP_CORBRPRST); 776 /* 777 * The HDA specification indicates that the CORBRPRST bit will always 778 * read as zero. Unfortunately, it seems that at least the 82801G 779 * doesn't reset the bit to zero, which stalls the corb engine. 780 * manually reset the bit to zero before continuing. 781 */ 782 HDAC_WRITE_2(&sc->mem, HDAC_CORBRP, 0x0); 783 784 /* Enable CORB error reporting */ 785#if 0 786 HDAC_WRITE_1(&sc->mem, HDAC_CORBCTL, HDAC_CORBCTL_CMEIE); 787#endif 788} 789 790/**************************************************************************** 791 * void hdac_rirb_init(struct hdac_softc *) 792 * 793 * Initialize the rirb registers for operations but do not start it up yet. 794 * The RIRB engine must not be running when this function is called. 795 ****************************************************************************/ 796static void 797hdac_rirb_init(struct hdac_softc *sc) 798{ 799 uint8_t rirbsize; 800 uint64_t rirbpaddr; 801 802 /* Setup the RIRB size. */ 803 switch (sc->rirb_size) { 804 case 256: 805 rirbsize = HDAC_RIRBSIZE_RIRBSIZE(HDAC_RIRBSIZE_RIRBSIZE_256); 806 break; 807 case 16: 808 rirbsize = HDAC_RIRBSIZE_RIRBSIZE(HDAC_RIRBSIZE_RIRBSIZE_16); 809 break; 810 case 2: 811 rirbsize = HDAC_RIRBSIZE_RIRBSIZE(HDAC_RIRBSIZE_RIRBSIZE_2); 812 break; 813 default: 814 panic("%s: Invalid RIRB size (%x)\n", __func__, sc->rirb_size); 815 } 816 HDAC_WRITE_1(&sc->mem, HDAC_RIRBSIZE, rirbsize); 817 818 /* Setup the RIRB Address in the hdac */ 819 rirbpaddr = (uint64_t)sc->rirb_dma.dma_paddr; 820 HDAC_WRITE_4(&sc->mem, HDAC_RIRBLBASE, (uint32_t)rirbpaddr); 821 HDAC_WRITE_4(&sc->mem, HDAC_RIRBUBASE, (uint32_t)(rirbpaddr >> 32)); 822 823 /* Setup the WP and RP */ 824 sc->rirb_rp = 0; 825 HDAC_WRITE_2(&sc->mem, HDAC_RIRBWP, HDAC_RIRBWP_RIRBWPRST); 826 827 /* Setup the interrupt threshold */ 828 HDAC_WRITE_2(&sc->mem, HDAC_RINTCNT, sc->rirb_size / 2); 829 830 /* Enable Overrun and response received reporting */ 831#if 0 832 HDAC_WRITE_1(&sc->mem, HDAC_RIRBCTL, 833 HDAC_RIRBCTL_RIRBOIC | HDAC_RIRBCTL_RINTCTL); 834#else 835 HDAC_WRITE_1(&sc->mem, HDAC_RIRBCTL, HDAC_RIRBCTL_RINTCTL); 836#endif 837 838#if 0 839 /* 840 * Make sure that the Host CPU cache doesn't contain any dirty 841 * cache lines that falls in the rirb. If I understood correctly, it 842 * should be sufficient to do this only once as the rirb is purely 843 * read-only from now on. 844 */ 845 bus_dmamap_sync(sc->rirb_dma.dma_tag, sc->rirb_dma.dma_map, 846 BUS_DMASYNC_PREREAD); 847#endif 848} 849 850/**************************************************************************** 851 * void hdac_corb_start(hdac_softc *) 852 * 853 * Startup the corb DMA engine 854 ****************************************************************************/ 855static void 856hdac_corb_start(struct hdac_softc *sc) 857{ 858 uint32_t corbctl; 859 860 corbctl = HDAC_READ_1(&sc->mem, HDAC_CORBCTL); 861 corbctl |= HDAC_CORBCTL_CORBRUN; 862 HDAC_WRITE_1(&sc->mem, HDAC_CORBCTL, corbctl); 863} 864 865/**************************************************************************** 866 * void hdac_rirb_start(hdac_softc *) 867 * 868 * Startup the rirb DMA engine 869 ****************************************************************************/ 870static void 871hdac_rirb_start(struct hdac_softc *sc) 872{ 873 uint32_t rirbctl; 874 875 rirbctl = HDAC_READ_1(&sc->mem, HDAC_RIRBCTL); 876 rirbctl |= HDAC_RIRBCTL_RIRBDMAEN; 877 HDAC_WRITE_1(&sc->mem, HDAC_RIRBCTL, rirbctl); 878} 879 880static int 881hdac_rirb_flush(struct hdac_softc *sc) 882{ 883 struct hdac_rirb *rirb_base, *rirb; 884 nid_t cad; 885 uint32_t resp; 886 uint8_t rirbwp; 887 int ret; 888 889 rirb_base = (struct hdac_rirb *)sc->rirb_dma.dma_vaddr; 890 rirbwp = HDAC_READ_1(&sc->mem, HDAC_RIRBWP); 891#if 0 892 bus_dmamap_sync(sc->rirb_dma.dma_tag, sc->rirb_dma.dma_map, 893 BUS_DMASYNC_POSTREAD); 894#endif 895 896 ret = 0; 897 while (sc->rirb_rp != rirbwp) { 898 sc->rirb_rp++; 899 sc->rirb_rp %= sc->rirb_size; 900 rirb = &rirb_base[sc->rirb_rp]; 901 cad = HDAC_RIRB_RESPONSE_EX_SDATA_IN(rirb->response_ex); 902 resp = rirb->response; 903 if (rirb->response_ex & HDAC_RIRB_RESPONSE_EX_UNSOLICITED) { 904 sc->unsolq[sc->unsolq_wp++] = resp; 905 sc->unsolq_wp %= HDAC_UNSOLQ_MAX; 906 sc->unsolq[sc->unsolq_wp++] = cad; 907 sc->unsolq_wp %= HDAC_UNSOLQ_MAX; 908 } else if (sc->codecs[cad].pending <= 0) { 909 device_printf(sc->dev, "Unexpected unsolicited " 910 "response from address %d: %08x\n", cad, resp); 911 } else { 912 sc->codecs[cad].response = resp; 913 sc->codecs[cad].pending--; 914 } 915 ret++; 916 } 917 return (ret); 918} 919 920static int 921hdac_unsolq_flush(struct hdac_softc *sc) 922{ 923 device_t child; 924 nid_t cad; 925 uint32_t resp; 926 int ret = 0; 927 928 if (sc->unsolq_st == HDAC_UNSOLQ_READY) { 929 sc->unsolq_st = HDAC_UNSOLQ_BUSY; 930 while (sc->unsolq_rp != sc->unsolq_wp) { 931 resp = sc->unsolq[sc->unsolq_rp++]; 932 sc->unsolq_rp %= HDAC_UNSOLQ_MAX; 933 cad = sc->unsolq[sc->unsolq_rp++]; 934 sc->unsolq_rp %= HDAC_UNSOLQ_MAX; 935 if ((child = sc->codecs[cad].dev) != NULL) 936 HDAC_UNSOL_INTR(child, resp); 937 ret++; 938 } 939 sc->unsolq_st = HDAC_UNSOLQ_READY; 940 } 941 942 return (ret); 943} 944 945/**************************************************************************** 946 * uint32_t hdac_command_sendone_internal 947 * 948 * Wrapper function that sends only one command to a given codec 949 ****************************************************************************/ 950static uint32_t 951hdac_send_command(struct hdac_softc *sc, nid_t cad, uint32_t verb) 952{ 953 int timeout; 954 uint32_t *corb; 955 956 if (!hdac_lockowned(sc)) 957 device_printf(sc->dev, "WARNING!!!! mtx not owned!!!!\n"); 958 verb &= ~HDA_CMD_CAD_MASK; 959 verb |= ((uint32_t)cad) << HDA_CMD_CAD_SHIFT; 960 sc->codecs[cad].response = HDA_INVALID; 961 962 sc->codecs[cad].pending++; 963 sc->corb_wp++; 964 sc->corb_wp %= sc->corb_size; 965 corb = (uint32_t *)sc->corb_dma.dma_vaddr; 966#if 0 967 bus_dmamap_sync(sc->corb_dma.dma_tag, 968 sc->corb_dma.dma_map, BUS_DMASYNC_PREWRITE); 969#endif 970 corb[sc->corb_wp] = verb; 971#if 0 972 bus_dmamap_sync(sc->corb_dma.dma_tag, 973 sc->corb_dma.dma_map, BUS_DMASYNC_POSTWRITE); 974#endif 975 HDAC_WRITE_2(&sc->mem, HDAC_CORBWP, sc->corb_wp); 976 977 timeout = 10000; 978 do { 979 if (hdac_rirb_flush(sc) == 0) 980 DELAY(10); 981 } while (sc->codecs[cad].pending != 0 && --timeout); 982 983 if (sc->codecs[cad].pending != 0) { 984 device_printf(sc->dev, "Command timeout on address %d\n", cad); 985 sc->codecs[cad].pending = 0; 986 } 987 988 if (sc->unsolq_rp != sc->unsolq_wp) 989 taskqueue_enqueue(taskqueue_thread, &sc->unsolq_task); 990 return (sc->codecs[cad].response); 991} 992 993/**************************************************************************** 994 * Device Methods 995 ****************************************************************************/ 996 997/**************************************************************************** 998 * int hdac_probe(device_t) 999 * 1000 * Probe for the presence of an hdac. If none is found, check for a generic 1001 * match using the subclass of the device. 1002 ****************************************************************************/ 1003static int 1004hdac_probe(device_t dev) 1005{ 1006 int i, result; 1007 uint32_t model; 1008 uint16_t class, subclass; 1009 char desc[64]; 1010 1011 model = (uint32_t)pci_get_device(dev) << 16; 1012 model |= (uint32_t)pci_get_vendor(dev) & 0x0000ffff; 1013 class = pci_get_class(dev); 1014 subclass = pci_get_subclass(dev); 1015 1016 bzero(desc, sizeof(desc)); 1017 result = ENXIO; 1018 for (i = 0; i < HDAC_DEVICES_LEN; i++) { 1019 if (hdac_devices[i].model == model) { 1020 strlcpy(desc, hdac_devices[i].desc, sizeof(desc)); 1021 result = BUS_PROBE_DEFAULT; 1022 break; 1023 } 1024 if (HDA_DEV_MATCH(hdac_devices[i].model, model) && 1025 class == PCIC_MULTIMEDIA && 1026 subclass == PCIS_MULTIMEDIA_HDA) { 1027 snprintf(desc, sizeof(desc), 1028 "%s (0x%04x)", 1029 hdac_devices[i].desc, pci_get_device(dev)); 1030 result = BUS_PROBE_GENERIC; 1031 break; 1032 } 1033 } 1034 if (result == ENXIO && class == PCIC_MULTIMEDIA && 1035 subclass == PCIS_MULTIMEDIA_HDA) { 1036 snprintf(desc, sizeof(desc), "Generic (0x%08x)", model); 1037 result = BUS_PROBE_GENERIC; 1038 } 1039 if (result != ENXIO) { 1040 strlcat(desc, " HDA Controller", sizeof(desc)); 1041 device_set_desc_copy(dev, desc); 1042 } 1043 1044 return (result); 1045} 1046 1047static void 1048hdac_unsolq_task(void *context, int pending) 1049{ 1050 struct hdac_softc *sc; 1051 1052 sc = (struct hdac_softc *)context; 1053 1054 hdac_lock(sc); 1055 hdac_unsolq_flush(sc); 1056 hdac_unlock(sc); 1057} 1058 1059/**************************************************************************** 1060 * int hdac_attach(device_t) 1061 * 1062 * Attach the device into the kernel. Interrupts usually won't be enabled 1063 * when this function is called. Setup everything that doesn't require 1064 * interrupts and defer probing of codecs until interrupts are enabled. 1065 ****************************************************************************/ 1066static int 1067hdac_attach(device_t dev) 1068{ 1069 struct hdac_softc *sc; 1070 int result; 1071 int i, devid = -1; 1072 uint32_t model; 1073 uint16_t class, subclass; 1074 uint16_t vendor; 1075 uint8_t v; 1076 1077 sc = device_get_softc(dev); 1078 HDA_BOOTVERBOSE( 1079 device_printf(dev, "HDA Driver Revision: %s\n", 1080 HDA_DRV_TEST_REV); 1081 ); 1082 1083 model = (uint32_t)pci_get_device(dev) << 16; 1084 model |= (uint32_t)pci_get_vendor(dev) & 0x0000ffff; 1085 class = pci_get_class(dev); 1086 subclass = pci_get_subclass(dev); 1087 1088 for (i = 0; i < HDAC_DEVICES_LEN; i++) { 1089 if (hdac_devices[i].model == model) { 1090 devid = i; 1091 break; 1092 } 1093 if (HDA_DEV_MATCH(hdac_devices[i].model, model) && 1094 class == PCIC_MULTIMEDIA && 1095 subclass == PCIS_MULTIMEDIA_HDA) { 1096 devid = i; 1097 break; 1098 } 1099 } 1100 1101 sc->lock = snd_mtxcreate(device_get_nameunit(dev), "HDA driver mutex"); 1102 sc->dev = dev; 1103 TASK_INIT(&sc->unsolq_task, 0, hdac_unsolq_task, sc); 1104 callout_init(&sc->poll_callout, CALLOUT_MPSAFE); 1105 for (i = 0; i < HDAC_CODEC_MAX; i++) 1106 sc->codecs[i].dev = NULL; 1107 if (devid >= 0) { 1108 sc->quirks_on = hdac_devices[devid].quirks_on; 1109 sc->quirks_off = hdac_devices[devid].quirks_off; 1110 } else { 1111 sc->quirks_on = 0; 1112 sc->quirks_off = 0; 1113 } 1114 if (resource_int_value(device_get_name(dev), 1115 device_get_unit(dev), "msi", &i) == 0) { 1116 if (i == 0) 1117 sc->quirks_off |= HDAC_QUIRK_MSI; 1118 else { 1119 sc->quirks_on |= HDAC_QUIRK_MSI; 1120 sc->quirks_off |= ~HDAC_QUIRK_MSI; 1121 } 1122 } 1123 hdac_config_fetch(sc, &sc->quirks_on, &sc->quirks_off); 1124 HDA_BOOTVERBOSE( 1125 device_printf(sc->dev, 1126 "Config options: on=0x%08x off=0x%08x\n", 1127 sc->quirks_on, sc->quirks_off); 1128 ); 1129 sc->poll_ival = hz; 1130 if (resource_int_value(device_get_name(dev), 1131 device_get_unit(dev), "polling", &i) == 0 && i != 0) 1132 sc->polling = 1; 1133 else 1134 sc->polling = 0; 1135 1136 pci_enable_busmaster(dev); 1137 1138 vendor = pci_get_vendor(dev); 1139 if (vendor == INTEL_VENDORID) { 1140 /* TCSEL -> TC0 */ 1141 v = pci_read_config(dev, 0x44, 1); 1142 pci_write_config(dev, 0x44, v & 0xf8, 1); 1143 HDA_BOOTHVERBOSE( 1144 device_printf(dev, "TCSEL: 0x%02d -> 0x%02d\n", v, 1145 pci_read_config(dev, 0x44, 1)); 1146 ); 1147 } 1148 1149#if defined(__i386__) || defined(__amd64__) 1150 sc->flags |= HDAC_F_DMA_NOCACHE; 1151 1152 if (resource_int_value(device_get_name(dev), 1153 device_get_unit(dev), "snoop", &i) == 0 && i != 0) { 1154#else 1155 sc->flags &= ~HDAC_F_DMA_NOCACHE; 1156#endif 1157 /* 1158 * Try to enable PCIe snoop to avoid messing around with 1159 * uncacheable DMA attribute. Since PCIe snoop register 1160 * config is pretty much vendor specific, there are no 1161 * general solutions on how to enable it, forcing us (even 1162 * Microsoft) to enable uncacheable or write combined DMA 1163 * by default. 1164 * 1165 * http://msdn2.microsoft.com/en-us/library/ms790324.aspx 1166 */ 1167 for (i = 0; i < HDAC_PCIESNOOP_LEN; i++) { 1168 if (hdac_pcie_snoop[i].vendor != vendor) 1169 continue; 1170 sc->flags &= ~HDAC_F_DMA_NOCACHE; 1171 if (hdac_pcie_snoop[i].reg == 0x00) 1172 break; 1173 v = pci_read_config(dev, hdac_pcie_snoop[i].reg, 1); 1174 if ((v & hdac_pcie_snoop[i].enable) == 1175 hdac_pcie_snoop[i].enable) 1176 break; 1177 v &= hdac_pcie_snoop[i].mask; 1178 v |= hdac_pcie_snoop[i].enable; 1179 pci_write_config(dev, hdac_pcie_snoop[i].reg, v, 1); 1180 v = pci_read_config(dev, hdac_pcie_snoop[i].reg, 1); 1181 if ((v & hdac_pcie_snoop[i].enable) != 1182 hdac_pcie_snoop[i].enable) { 1183 HDA_BOOTVERBOSE( 1184 device_printf(dev, 1185 "WARNING: Failed to enable PCIe " 1186 "snoop!\n"); 1187 ); 1188#if defined(__i386__) || defined(__amd64__) 1189 sc->flags |= HDAC_F_DMA_NOCACHE; 1190#endif 1191 } 1192 break; 1193 } 1194#if defined(__i386__) || defined(__amd64__) 1195 } 1196#endif 1197 1198 HDA_BOOTHVERBOSE( 1199 device_printf(dev, "DMA Coherency: %s / vendor=0x%04x\n", 1200 (sc->flags & HDAC_F_DMA_NOCACHE) ? 1201 "Uncacheable" : "PCIe snoop", vendor); 1202 ); 1203 1204 /* Allocate resources */ 1205 result = hdac_mem_alloc(sc); 1206 if (result != 0) 1207 goto hdac_attach_fail; 1208 result = hdac_irq_alloc(sc); 1209 if (result != 0) 1210 goto hdac_attach_fail; 1211 1212 /* Get Capabilities */ 1213 result = hdac_get_capabilities(sc); 1214 if (result != 0) 1215 goto hdac_attach_fail; 1216 1217 /* Allocate CORB, RIRB, POS and BDLs dma memory */ 1218 result = hdac_dma_alloc(sc, &sc->corb_dma, 1219 sc->corb_size * sizeof(uint32_t)); 1220 if (result != 0) 1221 goto hdac_attach_fail; 1222 result = hdac_dma_alloc(sc, &sc->rirb_dma, 1223 sc->rirb_size * sizeof(struct hdac_rirb)); 1224 if (result != 0) 1225 goto hdac_attach_fail; 1226 sc->streams = malloc(sizeof(struct hdac_stream) * sc->num_ss, 1227 M_HDAC, M_ZERO | M_WAITOK); 1228 for (i = 0; i < sc->num_ss; i++) { 1229 result = hdac_dma_alloc(sc, &sc->streams[i].bdl, 1230 sizeof(struct hdac_bdle) * HDA_BDL_MAX); 1231 if (result != 0) 1232 goto hdac_attach_fail; 1233 } 1234 if (sc->quirks_on & HDAC_QUIRK_DMAPOS) { 1235 if (hdac_dma_alloc(sc, &sc->pos_dma, (sc->num_ss) * 8) != 0) { 1236 HDA_BOOTVERBOSE( 1237 device_printf(dev, "Failed to " 1238 "allocate DMA pos buffer " 1239 "(non-fatal)\n"); 1240 ); 1241 } else { 1242 uint64_t addr = sc->pos_dma.dma_paddr; 1243 1244 HDAC_WRITE_4(&sc->mem, HDAC_DPIBUBASE, addr >> 32); 1245 HDAC_WRITE_4(&sc->mem, HDAC_DPIBLBASE, 1246 (addr & HDAC_DPLBASE_DPLBASE_MASK) | 1247 HDAC_DPLBASE_DPLBASE_DMAPBE); 1248 } 1249 } 1250 1251 result = bus_dma_tag_create( 1252 bus_get_dma_tag(sc->dev), /* parent */ 1253 HDA_DMA_ALIGNMENT, /* alignment */ 1254 0, /* boundary */ 1255 (sc->support_64bit) ? BUS_SPACE_MAXADDR : 1256 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 1257 BUS_SPACE_MAXADDR, /* highaddr */ 1258 NULL, /* filtfunc */ 1259 NULL, /* fistfuncarg */ 1260 HDA_BUFSZ_MAX, /* maxsize */ 1261 1, /* nsegments */ 1262 HDA_BUFSZ_MAX, /* maxsegsz */ 1263 0, /* flags */ 1264 NULL, /* lockfunc */ 1265 NULL, /* lockfuncarg */ 1266 &sc->chan_dmat); /* dmat */ 1267 if (result != 0) { 1268 device_printf(dev, "%s: bus_dma_tag_create failed (%x)\n", 1269 __func__, result); 1270 goto hdac_attach_fail; 1271 } 1272 1273 /* Quiesce everything */ 1274 HDA_BOOTHVERBOSE( 1275 device_printf(dev, "Reset controller...\n"); 1276 ); 1277 hdac_reset(sc, 1); 1278 1279 /* Initialize the CORB and RIRB */ 1280 hdac_corb_init(sc); 1281 hdac_rirb_init(sc); 1282 1283 /* Defer remaining of initialization until interrupts are enabled */ 1284 sc->intrhook.ich_func = hdac_attach2; 1285 sc->intrhook.ich_arg = (void *)sc; 1286 if (cold == 0 || config_intrhook_establish(&sc->intrhook) != 0) { 1287 sc->intrhook.ich_func = NULL; 1288 hdac_attach2((void *)sc); 1289 } 1290 1291 return (0); 1292 1293hdac_attach_fail: 1294 hdac_irq_free(sc); 1295 for (i = 0; i < sc->num_ss; i++) 1296 hdac_dma_free(sc, &sc->streams[i].bdl); 1297 free(sc->streams, M_HDAC); 1298 hdac_dma_free(sc, &sc->rirb_dma); 1299 hdac_dma_free(sc, &sc->corb_dma); 1300 hdac_mem_free(sc); 1301 snd_mtxfree(sc->lock); 1302 1303 return (ENXIO); 1304} 1305 1306static int 1307sysctl_hdac_pindump(SYSCTL_HANDLER_ARGS) 1308{ 1309 struct hdac_softc *sc; 1310 device_t *devlist; 1311 device_t dev; 1312 int devcount, i, err, val; 1313 1314 dev = oidp->oid_arg1; 1315 sc = device_get_softc(dev); 1316 if (sc == NULL) 1317 return (EINVAL); 1318 val = 0; 1319 err = sysctl_handle_int(oidp, &val, 0, req); 1320 if (err != 0 || req->newptr == NULL || val == 0) 1321 return (err); 1322 1323 /* XXX: Temporary. For debugging. */ 1324 if (val == 100) { 1325 hdac_suspend(dev); 1326 return (0); 1327 } else if (val == 101) { 1328 hdac_resume(dev); 1329 return (0); 1330 } 1331 1332 if ((err = device_get_children(dev, &devlist, &devcount)) != 0) 1333 return (err); 1334 hdac_lock(sc); 1335 for (i = 0; i < devcount; i++) 1336 HDAC_PINDUMP(devlist[i]); 1337 hdac_unlock(sc); 1338 free(devlist, M_TEMP); 1339 return (0); 1340} 1341 1342static int 1343hdac_mdata_rate(uint16_t fmt) 1344{ 1345 static const int mbits[8] = { 8, 16, 32, 32, 32, 32, 32, 32 }; 1346 int rate, bits; 1347 1348 if (fmt & (1 << 14)) 1349 rate = 44100; 1350 else 1351 rate = 48000; 1352 rate *= ((fmt >> 11) & 0x07) + 1; 1353 rate /= ((fmt >> 8) & 0x07) + 1; 1354 bits = mbits[(fmt >> 4) & 0x03]; 1355 bits *= (fmt & 0x0f) + 1; 1356 return (rate * bits); 1357} 1358 1359static int 1360hdac_bdata_rate(uint16_t fmt, int output) 1361{ 1362 static const int bbits[8] = { 8, 16, 20, 24, 32, 32, 32, 32 }; 1363 int rate, bits; 1364 1365 rate = 48000; 1366 rate *= ((fmt >> 11) & 0x07) + 1; 1367 bits = bbits[(fmt >> 4) & 0x03]; 1368 bits *= (fmt & 0x0f) + 1; 1369 if (!output) 1370 bits = ((bits + 7) & ~0x07) + 10; 1371 return (rate * bits); 1372} 1373 1374static void 1375hdac_poll_reinit(struct hdac_softc *sc) 1376{ 1377 int i, pollticks, min = 1000000; 1378 struct hdac_stream *s; 1379 1380 if (sc->polling == 0) 1381 return; 1382 if (sc->unsol_registered > 0) 1383 min = hz / 2; 1384 for (i = 0; i < sc->num_ss; i++) { 1385 s = &sc->streams[i]; 1386 if (s->running == 0) 1387 continue; 1388 pollticks = ((uint64_t)hz * s->blksz) / 1389 (hdac_mdata_rate(s->format) / 8); 1390 pollticks >>= 1; 1391 if (pollticks > hz) 1392 pollticks = hz; 1393 if (pollticks < 1) { 1394 HDA_BOOTVERBOSE( 1395 device_printf(sc->dev, 1396 "poll interval < 1 tick !\n"); 1397 ); 1398 pollticks = 1; 1399 } 1400 if (min > pollticks) 1401 min = pollticks; 1402 } 1403 HDA_BOOTVERBOSE( 1404 device_printf(sc->dev, 1405 "poll interval %d -> %d ticks\n", 1406 sc->poll_ival, min); 1407 ); 1408 sc->poll_ival = min; 1409 if (min == 1000000) 1410 callout_stop(&sc->poll_callout); 1411 else 1412 callout_reset(&sc->poll_callout, 1, hdac_poll_callback, sc); 1413} 1414 1415static int 1416sysctl_hdac_polling(SYSCTL_HANDLER_ARGS) 1417{ 1418 struct hdac_softc *sc; 1419 device_t dev; 1420 uint32_t ctl; 1421 int err, val; 1422 1423 dev = oidp->oid_arg1; 1424 sc = device_get_softc(dev); 1425 if (sc == NULL) 1426 return (EINVAL); 1427 hdac_lock(sc); 1428 val = sc->polling; 1429 hdac_unlock(sc); 1430 err = sysctl_handle_int(oidp, &val, 0, req); 1431 1432 if (err != 0 || req->newptr == NULL) 1433 return (err); 1434 if (val < 0 || val > 1) 1435 return (EINVAL); 1436 1437 hdac_lock(sc); 1438 if (val != sc->polling) { 1439 if (val == 0) { 1440 callout_stop(&sc->poll_callout); 1441 hdac_unlock(sc); 1442 callout_drain(&sc->poll_callout); 1443 hdac_lock(sc); 1444 sc->polling = 0; 1445 ctl = HDAC_READ_4(&sc->mem, HDAC_INTCTL); 1446 ctl |= HDAC_INTCTL_GIE; 1447 HDAC_WRITE_4(&sc->mem, HDAC_INTCTL, ctl); 1448 } else { 1449 ctl = HDAC_READ_4(&sc->mem, HDAC_INTCTL); 1450 ctl &= ~HDAC_INTCTL_GIE; 1451 HDAC_WRITE_4(&sc->mem, HDAC_INTCTL, ctl); 1452 sc->polling = 1; 1453 hdac_poll_reinit(sc); 1454 } 1455 } 1456 hdac_unlock(sc); 1457 1458 return (err); 1459} 1460 1461static void 1462hdac_attach2(void *arg) 1463{ 1464 struct hdac_softc *sc; 1465 device_t child; 1466 uint32_t vendorid, revisionid; 1467 int i; 1468 uint16_t statests; 1469 1470 sc = (struct hdac_softc *)arg; 1471 1472 hdac_lock(sc); 1473 1474 /* Remove ourselves from the config hooks */ 1475 if (sc->intrhook.ich_func != NULL) { 1476 config_intrhook_disestablish(&sc->intrhook); 1477 sc->intrhook.ich_func = NULL; 1478 } 1479 1480 HDA_BOOTHVERBOSE( 1481 device_printf(sc->dev, "Starting CORB Engine...\n"); 1482 ); 1483 hdac_corb_start(sc); 1484 HDA_BOOTHVERBOSE( 1485 device_printf(sc->dev, "Starting RIRB Engine...\n"); 1486 ); 1487 hdac_rirb_start(sc); 1488 HDA_BOOTHVERBOSE( 1489 device_printf(sc->dev, 1490 "Enabling controller interrupt...\n"); 1491 ); 1492 HDAC_WRITE_4(&sc->mem, HDAC_GCTL, HDAC_READ_4(&sc->mem, HDAC_GCTL) | 1493 HDAC_GCTL_UNSOL); 1494 if (sc->polling == 0) { 1495 HDAC_WRITE_4(&sc->mem, HDAC_INTCTL, 1496 HDAC_INTCTL_CIE | HDAC_INTCTL_GIE); 1497 } 1498 DELAY(1000); 1499 1500 HDA_BOOTHVERBOSE( 1501 device_printf(sc->dev, "Scanning HDA codecs ...\n"); 1502 ); 1503 statests = HDAC_READ_2(&sc->mem, HDAC_STATESTS); 1504 hdac_unlock(sc); 1505 for (i = 0; i < HDAC_CODEC_MAX; i++) { 1506 if (HDAC_STATESTS_SDIWAKE(statests, i)) { 1507 HDA_BOOTHVERBOSE( 1508 device_printf(sc->dev, 1509 "Found CODEC at address %d\n", i); 1510 ); 1511 hdac_lock(sc); 1512 vendorid = hdac_send_command(sc, i, 1513 HDA_CMD_GET_PARAMETER(0, 0x0, HDA_PARAM_VENDOR_ID)); 1514 revisionid = hdac_send_command(sc, i, 1515 HDA_CMD_GET_PARAMETER(0, 0x0, HDA_PARAM_REVISION_ID)); 1516 hdac_unlock(sc); 1517 if (vendorid == HDA_INVALID && 1518 revisionid == HDA_INVALID) { 1519 device_printf(sc->dev, 1520 "CODEC is not responding!\n"); 1521 continue; 1522 } 1523 sc->codecs[i].vendor_id = 1524 HDA_PARAM_VENDOR_ID_VENDOR_ID(vendorid); 1525 sc->codecs[i].device_id = 1526 HDA_PARAM_VENDOR_ID_DEVICE_ID(vendorid); 1527 sc->codecs[i].revision_id = 1528 HDA_PARAM_REVISION_ID_REVISION_ID(revisionid); 1529 sc->codecs[i].stepping_id = 1530 HDA_PARAM_REVISION_ID_STEPPING_ID(revisionid); 1531 child = device_add_child(sc->dev, "hdacc", -1); 1532 if (child == NULL) { 1533 device_printf(sc->dev, 1534 "Failed to add CODEC device\n"); 1535 continue; 1536 } 1537 device_set_ivars(child, (void *)(intptr_t)i); 1538 sc->codecs[i].dev = child; 1539 } 1540 } 1541 bus_generic_attach(sc->dev); 1542 1543 SYSCTL_ADD_PROC(device_get_sysctl_ctx(sc->dev), 1544 SYSCTL_CHILDREN(device_get_sysctl_tree(sc->dev)), OID_AUTO, 1545 "pindump", CTLTYPE_INT | CTLFLAG_RW, sc->dev, sizeof(sc->dev), 1546 sysctl_hdac_pindump, "I", "Dump pin states/data"); 1547 SYSCTL_ADD_PROC(device_get_sysctl_ctx(sc->dev), 1548 SYSCTL_CHILDREN(device_get_sysctl_tree(sc->dev)), OID_AUTO, 1549 "polling", CTLTYPE_INT | CTLFLAG_RW, sc->dev, sizeof(sc->dev), 1550 sysctl_hdac_polling, "I", "Enable polling mode"); 1551} 1552 1553/**************************************************************************** 1554 * int hdac_suspend(device_t) 1555 * 1556 * Suspend and power down HDA bus and codecs. 1557 ****************************************************************************/ 1558static int 1559hdac_suspend(device_t dev) 1560{ 1561 struct hdac_softc *sc = device_get_softc(dev); 1562 1563 HDA_BOOTHVERBOSE( 1564 device_printf(dev, "Suspend...\n"); 1565 ); 1566 bus_generic_suspend(dev); 1567 1568 hdac_lock(sc); 1569 HDA_BOOTHVERBOSE( 1570 device_printf(dev, "Reset controller...\n"); 1571 ); 1572 hdac_reset(sc, 0); 1573 hdac_unlock(sc); 1574 taskqueue_drain(taskqueue_thread, &sc->unsolq_task); 1575 HDA_BOOTHVERBOSE( 1576 device_printf(dev, "Suspend done\n"); 1577 ); 1578 return (0); 1579} 1580 1581/**************************************************************************** 1582 * int hdac_resume(device_t) 1583 * 1584 * Powerup and restore HDA bus and codecs state. 1585 ****************************************************************************/ 1586static int 1587hdac_resume(device_t dev) 1588{ 1589 struct hdac_softc *sc = device_get_softc(dev); 1590 int error; 1591 1592 HDA_BOOTHVERBOSE( 1593 device_printf(dev, "Resume...\n"); 1594 ); 1595 hdac_lock(sc); 1596 1597 /* Quiesce everything */ 1598 HDA_BOOTHVERBOSE( 1599 device_printf(dev, "Reset controller...\n"); 1600 ); 1601 hdac_reset(sc, 1); 1602 1603 /* Initialize the CORB and RIRB */ 1604 hdac_corb_init(sc); 1605 hdac_rirb_init(sc); 1606 1607 HDA_BOOTHVERBOSE( 1608 device_printf(dev, "Starting CORB Engine...\n"); 1609 ); 1610 hdac_corb_start(sc); 1611 HDA_BOOTHVERBOSE( 1612 device_printf(dev, "Starting RIRB Engine...\n"); 1613 ); 1614 hdac_rirb_start(sc); 1615 HDA_BOOTHVERBOSE( 1616 device_printf(dev, "Enabling controller interrupt...\n"); 1617 ); 1618 HDAC_WRITE_4(&sc->mem, HDAC_GCTL, HDAC_READ_4(&sc->mem, HDAC_GCTL) | 1619 HDAC_GCTL_UNSOL); 1620 HDAC_WRITE_4(&sc->mem, HDAC_INTCTL, HDAC_INTCTL_CIE | HDAC_INTCTL_GIE); 1621 DELAY(1000); 1622 hdac_unlock(sc); 1623 1624 error = bus_generic_resume(dev); 1625 HDA_BOOTHVERBOSE( 1626 device_printf(dev, "Resume done\n"); 1627 ); 1628 return (error); 1629} 1630 1631/**************************************************************************** 1632 * int hdac_detach(device_t) 1633 * 1634 * Detach and free up resources utilized by the hdac device. 1635 ****************************************************************************/ 1636static int 1637hdac_detach(device_t dev) 1638{ 1639 struct hdac_softc *sc = device_get_softc(dev); 1640 device_t *devlist; 1641 int cad, i, devcount, error; 1642 1643 if ((error = device_get_children(dev, &devlist, &devcount)) != 0) 1644 return (error); 1645 for (i = 0; i < devcount; i++) { 1646 cad = (intptr_t)device_get_ivars(devlist[i]); 1647 if ((error = device_delete_child(dev, devlist[i])) != 0) { 1648 free(devlist, M_TEMP); 1649 return (error); 1650 } 1651 sc->codecs[cad].dev = NULL; 1652 } 1653 free(devlist, M_TEMP); 1654 1655 hdac_lock(sc); 1656 hdac_reset(sc, 0); 1657 hdac_unlock(sc); 1658 taskqueue_drain(taskqueue_thread, &sc->unsolq_task); 1659 hdac_irq_free(sc); 1660 1661 for (i = 0; i < sc->num_ss; i++) 1662 hdac_dma_free(sc, &sc->streams[i].bdl); 1663 free(sc->streams, M_HDAC); 1664 hdac_dma_free(sc, &sc->pos_dma); 1665 hdac_dma_free(sc, &sc->rirb_dma); 1666 hdac_dma_free(sc, &sc->corb_dma); 1667 if (sc->chan_dmat != NULL) { 1668 bus_dma_tag_destroy(sc->chan_dmat); 1669 sc->chan_dmat = NULL; 1670 } 1671 hdac_mem_free(sc); 1672 snd_mtxfree(sc->lock); 1673 return (0); 1674} 1675 1676static bus_dma_tag_t 1677hdac_get_dma_tag(device_t dev, device_t child) 1678{ 1679 struct hdac_softc *sc = device_get_softc(dev); 1680 1681 return (sc->chan_dmat); 1682} 1683 1684static int 1685hdac_print_child(device_t dev, device_t child) 1686{ 1687 int retval; 1688 1689 retval = bus_print_child_header(dev, child); 1690 retval += printf(" at cad %d", 1691 (int)(intptr_t)device_get_ivars(child)); 1692 retval += bus_print_child_footer(dev, child); 1693 1694 return (retval); 1695} 1696 1697static int 1698hdac_child_location_str(device_t dev, device_t child, char *buf, 1699 size_t buflen) 1700{ 1701 1702 snprintf(buf, buflen, "cad=%d", 1703 (int)(intptr_t)device_get_ivars(child)); 1704 return (0); 1705} 1706 1707static int 1708hdac_child_pnpinfo_str_method(device_t dev, device_t child, char *buf, 1709 size_t buflen) 1710{ 1711 struct hdac_softc *sc = device_get_softc(dev); 1712 nid_t cad = (uintptr_t)device_get_ivars(child); 1713 1714 snprintf(buf, buflen, "vendor=0x%04x device=0x%04x revision=0x%02x " 1715 "stepping=0x%02x", 1716 sc->codecs[cad].vendor_id, sc->codecs[cad].device_id, 1717 sc->codecs[cad].revision_id, sc->codecs[cad].stepping_id); 1718 return (0); 1719} 1720 1721static int 1722hdac_read_ivar(device_t dev, device_t child, int which, uintptr_t *result) 1723{ 1724 struct hdac_softc *sc = device_get_softc(dev); 1725 nid_t cad = (uintptr_t)device_get_ivars(child); 1726 1727 switch (which) { 1728 case HDA_IVAR_CODEC_ID: 1729 *result = cad; 1730 break; 1731 case HDA_IVAR_VENDOR_ID: 1732 *result = sc->codecs[cad].vendor_id; 1733 break; 1734 case HDA_IVAR_DEVICE_ID: 1735 *result = sc->codecs[cad].device_id; 1736 break; 1737 case HDA_IVAR_REVISION_ID: 1738 *result = sc->codecs[cad].revision_id; 1739 break; 1740 case HDA_IVAR_STEPPING_ID: 1741 *result = sc->codecs[cad].stepping_id; 1742 break; 1743 case HDA_IVAR_SUBVENDOR_ID: 1744 *result = pci_get_subvendor(dev); 1745 break; 1746 case HDA_IVAR_SUBDEVICE_ID: 1747 *result = pci_get_subdevice(dev); 1748 break; 1749 case HDA_IVAR_DMA_NOCACHE: 1750 *result = (sc->flags & HDAC_F_DMA_NOCACHE) != 0; 1751 break; 1752 default: 1753 return (ENOENT); 1754 } 1755 return (0); 1756} 1757 1758static struct mtx * 1759hdac_get_mtx(device_t dev, device_t child) 1760{ 1761 struct hdac_softc *sc = device_get_softc(dev); 1762 1763 return (sc->lock); 1764} 1765 1766static uint32_t 1767hdac_codec_command(device_t dev, device_t child, uint32_t verb) 1768{ 1769 1770 return (hdac_send_command(device_get_softc(dev), 1771 (intptr_t)device_get_ivars(child), verb)); 1772} 1773 1774static int 1775hdac_find_stream(struct hdac_softc *sc, int dir, int stream) 1776{ 1777 int i, ss; 1778 1779 ss = -1; 1780 /* Allocate ISS/BSS first. */ 1781 if (dir == 0) { 1782 for (i = 0; i < sc->num_iss; i++) { 1783 if (sc->streams[i].stream == stream) { 1784 ss = i; 1785 break; 1786 } 1787 } 1788 } else { 1789 for (i = 0; i < sc->num_oss; i++) { 1790 if (sc->streams[i + sc->num_iss].stream == stream) { 1791 ss = i + sc->num_iss; 1792 break; 1793 } 1794 } 1795 } 1796 /* Fallback to BSS. */ 1797 if (ss == -1) { 1798 for (i = 0; i < sc->num_bss; i++) { 1799 if (sc->streams[i + sc->num_iss + sc->num_oss].stream 1800 == stream) { 1801 ss = i + sc->num_iss + sc->num_oss; 1802 break; 1803 } 1804 } 1805 } 1806 return (ss); 1807} 1808 1809static int 1810hdac_stream_alloc(device_t dev, device_t child, int dir, int format, int stripe, 1811 uint32_t **dmapos) 1812{ 1813 struct hdac_softc *sc = device_get_softc(dev); 1814 nid_t cad = (uintptr_t)device_get_ivars(child); 1815 int stream, ss, bw, maxbw, prevbw; 1816 1817 /* Look for empty stream. */ 1818 ss = hdac_find_stream(sc, dir, 0); 1819 1820 /* Return if found nothing. */ 1821 if (ss < 0) 1822 return (0); 1823 1824 /* Check bus bandwidth. */ 1825 bw = hdac_bdata_rate(format, dir); 1826 if (dir == 1) { 1827 bw *= 1 << (sc->num_sdo - stripe); 1828 prevbw = sc->sdo_bw_used; 1829 maxbw = 48000 * 960 * (1 << sc->num_sdo); 1830 } else { 1831 prevbw = sc->codecs[cad].sdi_bw_used; 1832 maxbw = 48000 * 464; 1833 } 1834 HDA_BOOTHVERBOSE( 1835 device_printf(dev, "%dKbps of %dKbps bandwidth used%s\n", 1836 (bw + prevbw) / 1000, maxbw / 1000, 1837 bw + prevbw > maxbw ? " -- OVERFLOW!" : ""); 1838 ); 1839 if (bw + prevbw > maxbw) 1840 return (0); 1841 if (dir == 1) 1842 sc->sdo_bw_used += bw; 1843 else 1844 sc->codecs[cad].sdi_bw_used += bw; 1845 1846 /* Allocate stream number */ 1847 if (ss >= sc->num_iss + sc->num_oss) 1848 stream = 15 - (ss - sc->num_iss + sc->num_oss); 1849 else if (ss >= sc->num_iss) 1850 stream = ss - sc->num_iss + 1; 1851 else 1852 stream = ss + 1; 1853 1854 sc->streams[ss].dev = child; 1855 sc->streams[ss].dir = dir; 1856 sc->streams[ss].stream = stream; 1857 sc->streams[ss].bw = bw; 1858 sc->streams[ss].format = format; 1859 sc->streams[ss].stripe = stripe; 1860 if (dmapos != NULL) { 1861 if (sc->pos_dma.dma_vaddr != NULL) 1862 *dmapos = (uint32_t *)(sc->pos_dma.dma_vaddr + ss * 8); 1863 else 1864 *dmapos = NULL; 1865 } 1866 return (stream); 1867} 1868 1869static void 1870hdac_stream_free(device_t dev, device_t child, int dir, int stream) 1871{ 1872 struct hdac_softc *sc = device_get_softc(dev); 1873 nid_t cad = (uintptr_t)device_get_ivars(child); 1874 int ss; 1875 1876 ss = hdac_find_stream(sc, dir, stream); 1877 KASSERT(ss >= 0, 1878 ("Free for not allocated stream (%d/%d)\n", dir, stream)); 1879 if (dir == 1) 1880 sc->sdo_bw_used -= sc->streams[ss].bw; 1881 else 1882 sc->codecs[cad].sdi_bw_used -= sc->streams[ss].bw; 1883 sc->streams[ss].stream = 0; 1884 sc->streams[ss].dev = NULL; 1885} 1886 1887static int 1888hdac_stream_start(device_t dev, device_t child, 1889 int dir, int stream, bus_addr_t buf, int blksz, int blkcnt) 1890{ 1891 struct hdac_softc *sc = device_get_softc(dev); 1892 struct hdac_bdle *bdle; 1893 uint64_t addr; 1894 int i, ss, off; 1895 uint32_t ctl; 1896 1897 ss = hdac_find_stream(sc, dir, stream); 1898 KASSERT(ss >= 0, 1899 ("Start for not allocated stream (%d/%d)\n", dir, stream)); 1900 1901 addr = (uint64_t)buf; 1902 bdle = (struct hdac_bdle *)sc->streams[ss].bdl.dma_vaddr; 1903 for (i = 0; i < blkcnt; i++, bdle++) { 1904 bdle->addrl = (uint32_t)addr; 1905 bdle->addrh = (uint32_t)(addr >> 32); 1906 bdle->len = blksz; 1907 bdle->ioc = 1; 1908 addr += blksz; 1909 } 1910 1911 off = ss << 5; 1912 HDAC_WRITE_4(&sc->mem, off + HDAC_SDCBL, blksz * blkcnt); 1913 HDAC_WRITE_2(&sc->mem, off + HDAC_SDLVI, blkcnt - 1); 1914 addr = sc->streams[ss].bdl.dma_paddr; 1915 HDAC_WRITE_4(&sc->mem, off + HDAC_SDBDPL, (uint32_t)addr); 1916 HDAC_WRITE_4(&sc->mem, off + HDAC_SDBDPU, (uint32_t)(addr >> 32)); 1917 1918 ctl = HDAC_READ_1(&sc->mem, off + HDAC_SDCTL2); 1919 if (dir) 1920 ctl |= HDAC_SDCTL2_DIR; 1921 else 1922 ctl &= ~HDAC_SDCTL2_DIR; 1923 ctl &= ~HDAC_SDCTL2_STRM_MASK; 1924 ctl |= stream << HDAC_SDCTL2_STRM_SHIFT; 1925 ctl &= ~HDAC_SDCTL2_STRIPE_MASK; 1926 ctl |= sc->streams[ss].stripe << HDAC_SDCTL2_STRIPE_SHIFT; 1927 HDAC_WRITE_1(&sc->mem, off + HDAC_SDCTL2, ctl); 1928 1929 HDAC_WRITE_2(&sc->mem, off + HDAC_SDFMT, sc->streams[ss].format); 1930 1931 ctl = HDAC_READ_4(&sc->mem, HDAC_INTCTL); 1932 ctl |= 1 << ss; 1933 HDAC_WRITE_4(&sc->mem, HDAC_INTCTL, ctl); 1934 1935 ctl = HDAC_READ_1(&sc->mem, off + HDAC_SDCTL0); 1936 ctl |= HDAC_SDCTL_IOCE | HDAC_SDCTL_FEIE | HDAC_SDCTL_DEIE | 1937 HDAC_SDCTL_RUN; 1938 HDAC_WRITE_1(&sc->mem, off + HDAC_SDCTL0, ctl); 1939 1940 sc->streams[ss].blksz = blksz; 1941 sc->streams[ss].running = 1; 1942 hdac_poll_reinit(sc); 1943 return (0); 1944} 1945 1946static void 1947hdac_stream_stop(device_t dev, device_t child, int dir, int stream) 1948{ 1949 struct hdac_softc *sc = device_get_softc(dev); 1950 int ss, off; 1951 uint32_t ctl; 1952 1953 ss = hdac_find_stream(sc, dir, stream); 1954 KASSERT(ss >= 0, 1955 ("Stop for not allocated stream (%d/%d)\n", dir, stream)); 1956 1957 off = ss << 5; 1958 ctl = HDAC_READ_1(&sc->mem, off + HDAC_SDCTL0); 1959 ctl &= ~(HDAC_SDCTL_IOCE | HDAC_SDCTL_FEIE | HDAC_SDCTL_DEIE | 1960 HDAC_SDCTL_RUN); 1961 HDAC_WRITE_1(&sc->mem, off + HDAC_SDCTL0, ctl); 1962 1963 ctl = HDAC_READ_4(&sc->mem, HDAC_INTCTL); 1964 ctl &= ~(1 << ss); 1965 HDAC_WRITE_4(&sc->mem, HDAC_INTCTL, ctl); 1966 1967 sc->streams[ss].running = 0; 1968 hdac_poll_reinit(sc); 1969} 1970 1971static void 1972hdac_stream_reset(device_t dev, device_t child, int dir, int stream) 1973{ 1974 struct hdac_softc *sc = device_get_softc(dev); 1975 int timeout = 1000; 1976 int to = timeout; 1977 int ss, off; 1978 uint32_t ctl; 1979 1980 ss = hdac_find_stream(sc, dir, stream); 1981 KASSERT(ss >= 0, 1982 ("Reset for not allocated stream (%d/%d)\n", dir, stream)); 1983 1984 off = ss << 5; 1985 ctl = HDAC_READ_1(&sc->mem, off + HDAC_SDCTL0); 1986 ctl |= HDAC_SDCTL_SRST; 1987 HDAC_WRITE_1(&sc->mem, off + HDAC_SDCTL0, ctl); 1988 do { 1989 ctl = HDAC_READ_1(&sc->mem, off + HDAC_SDCTL0); 1990 if (ctl & HDAC_SDCTL_SRST) 1991 break; 1992 DELAY(10); 1993 } while (--to); 1994 if (!(ctl & HDAC_SDCTL_SRST)) 1995 device_printf(dev, "Reset setting timeout\n"); 1996 ctl &= ~HDAC_SDCTL_SRST; 1997 HDAC_WRITE_1(&sc->mem, off + HDAC_SDCTL0, ctl); 1998 to = timeout; 1999 do { 2000 ctl = HDAC_READ_1(&sc->mem, off + HDAC_SDCTL0); 2001 if (!(ctl & HDAC_SDCTL_SRST)) 2002 break; 2003 DELAY(10); 2004 } while (--to); 2005 if (ctl & HDAC_SDCTL_SRST) 2006 device_printf(dev, "Reset timeout!\n"); 2007} 2008 2009static uint32_t 2010hdac_stream_getptr(device_t dev, device_t child, int dir, int stream) 2011{ 2012 struct hdac_softc *sc = device_get_softc(dev); 2013 int ss, off; 2014 2015 ss = hdac_find_stream(sc, dir, stream); 2016 KASSERT(ss >= 0, 2017 ("Reset for not allocated stream (%d/%d)\n", dir, stream)); 2018 2019 off = ss << 5; 2020 return (HDAC_READ_4(&sc->mem, off + HDAC_SDLPIB)); 2021} 2022 2023static int 2024hdac_unsol_alloc(device_t dev, device_t child, int tag) 2025{ 2026 struct hdac_softc *sc = device_get_softc(dev); 2027 2028 sc->unsol_registered++; 2029 hdac_poll_reinit(sc); 2030 return (tag); 2031} 2032 2033static void 2034hdac_unsol_free(device_t dev, device_t child, int tag) 2035{ 2036 struct hdac_softc *sc = device_get_softc(dev); 2037 2038 sc->unsol_registered--; 2039 hdac_poll_reinit(sc); 2040} 2041 2042static device_method_t hdac_methods[] = { 2043 /* device interface */ 2044 DEVMETHOD(device_probe, hdac_probe), 2045 DEVMETHOD(device_attach, hdac_attach), 2046 DEVMETHOD(device_detach, hdac_detach), 2047 DEVMETHOD(device_suspend, hdac_suspend), 2048 DEVMETHOD(device_resume, hdac_resume), 2049 /* Bus interface */ 2050 DEVMETHOD(bus_get_dma_tag, hdac_get_dma_tag), 2051 DEVMETHOD(bus_print_child, hdac_print_child), 2052 DEVMETHOD(bus_child_location_str, hdac_child_location_str), 2053 DEVMETHOD(bus_child_pnpinfo_str, hdac_child_pnpinfo_str_method), 2054 DEVMETHOD(bus_read_ivar, hdac_read_ivar), 2055 DEVMETHOD(hdac_get_mtx, hdac_get_mtx), 2056 DEVMETHOD(hdac_codec_command, hdac_codec_command), 2057 DEVMETHOD(hdac_stream_alloc, hdac_stream_alloc), 2058 DEVMETHOD(hdac_stream_free, hdac_stream_free), 2059 DEVMETHOD(hdac_stream_start, hdac_stream_start), 2060 DEVMETHOD(hdac_stream_stop, hdac_stream_stop), 2061 DEVMETHOD(hdac_stream_reset, hdac_stream_reset), 2062 DEVMETHOD(hdac_stream_getptr, hdac_stream_getptr), 2063 DEVMETHOD(hdac_unsol_alloc, hdac_unsol_alloc), 2064 DEVMETHOD(hdac_unsol_free, hdac_unsol_free), 2065 { 0, 0 } 2066}; 2067 2068static driver_t hdac_driver = { 2069 "hdac", 2070 hdac_methods, 2071 sizeof(struct hdac_softc), 2072}; 2073 2074static devclass_t hdac_devclass; 2075 2076DRIVER_MODULE(snd_hda, pci, hdac_driver, hdac_devclass, 0, 0); 2077