ehci_pci.c revision 190183
1/*- 2 * Copyright (c) 1998 The NetBSD Foundation, Inc. 3 * All rights reserved. 4 * 5 * This code is derived from software contributed to The NetBSD Foundation 6 * by Lennart Augustsson (augustss@carlstedt.se) at 7 * Carlstedt Research & Technology. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed by the NetBSD 20 * Foundation, Inc. and its contributors. 21 * 4. Neither the name of The NetBSD Foundation nor the names of its 22 * contributors may be used to endorse or promote products derived 23 * from this software without specific prior written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 26 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 29 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35 * POSSIBILITY OF SUCH DAMAGE. 36 */ 37 38#include <sys/cdefs.h> 39__FBSDID("$FreeBSD: head/sys/dev/usb/controller/ehci_pci.c 190183 2009-03-20 21:57:54Z thompsa $"); 40 41/* 42 * USB Enhanced Host Controller Driver, a.k.a. USB 2.0 controller. 43 * 44 * The EHCI 1.0 spec can be found at 45 * http://developer.intel.com/technology/usb/download/ehci-r10.pdf 46 * and the USB 2.0 spec at 47 * http://www.usb.org/developers/docs/usb_20.zip 48 */ 49 50/* The low level controller code for EHCI has been split into 51 * PCI probes and EHCI specific code. This was done to facilitate the 52 * sharing of code between *BSD's 53 */ 54 55#include <dev/usb/usb_mfunc.h> 56#include <dev/usb/usb.h> 57 58#include <dev/usb/usb_core.h> 59#include <dev/usb/usb_busdma.h> 60#include <dev/usb/usb_process.h> 61#include <dev/usb/usb_sw_transfer.h> 62#include <dev/usb/usb_util.h> 63 64#include <dev/usb/usb_controller.h> 65#include <dev/usb/usb_bus.h> 66#include <dev/usb/usb_pci.h> 67#include <dev/usb/controller/ehci.h> 68 69#define PCI_EHCI_VENDORID_ACERLABS 0x10b9 70#define PCI_EHCI_VENDORID_AMD 0x1022 71#define PCI_EHCI_VENDORID_APPLE 0x106b 72#define PCI_EHCI_VENDORID_ATI 0x1002 73#define PCI_EHCI_VENDORID_CMDTECH 0x1095 74#define PCI_EHCI_VENDORID_INTEL 0x8086 75#define PCI_EHCI_VENDORID_NEC 0x1033 76#define PCI_EHCI_VENDORID_OPTI 0x1045 77#define PCI_EHCI_VENDORID_PHILIPS 0x1131 78#define PCI_EHCI_VENDORID_SIS 0x1039 79#define PCI_EHCI_VENDORID_NVIDIA 0x12D2 80#define PCI_EHCI_VENDORID_NVIDIA2 0x10DE 81#define PCI_EHCI_VENDORID_VIA 0x1106 82 83#define PCI_EHCI_BASE_REG 0x10 84 85static void ehci_pci_takecontroller(device_t self); 86 87static device_probe_t ehci_pci_probe; 88static device_attach_t ehci_pci_attach; 89static device_detach_t ehci_pci_detach; 90static device_suspend_t ehci_pci_suspend; 91static device_resume_t ehci_pci_resume; 92static device_shutdown_t ehci_pci_shutdown; 93 94static int 95ehci_pci_suspend(device_t self) 96{ 97 ehci_softc_t *sc = device_get_softc(self); 98 int err; 99 100 err = bus_generic_suspend(self); 101 if (err) 102 return (err); 103 ehci_suspend(sc); 104 return (0); 105} 106 107static int 108ehci_pci_resume(device_t self) 109{ 110 ehci_softc_t *sc = device_get_softc(self); 111 112 ehci_pci_takecontroller(self); 113 ehci_resume(sc); 114 115 bus_generic_resume(self); 116 117 return (0); 118} 119 120static int 121ehci_pci_shutdown(device_t self) 122{ 123 ehci_softc_t *sc = device_get_softc(self); 124 int err; 125 126 err = bus_generic_shutdown(self); 127 if (err) 128 return (err); 129 ehci_shutdown(sc); 130 131 return (0); 132} 133 134static const char * 135ehci_pci_match(device_t self) 136{ 137 uint32_t device_id = pci_get_devid(self); 138 139 switch (device_id) { 140 case 0x268c8086: 141 return ("Intel 63XXESB USB 2.0 controller"); 142 143 case 0x523910b9: 144 return "ALi M5239 USB 2.0 controller"; 145 146 case 0x10227463: 147 return "AMD 8111 USB 2.0 controller"; 148 149 case 0x20951022: 150 return ("AMD CS5536 (Geode) USB 2.0 controller"); 151 152 case 0x43451002: 153 return "ATI SB200 USB 2.0 controller"; 154 case 0x43731002: 155 return "ATI SB400 USB 2.0 controller"; 156 157 case 0x25ad8086: 158 return "Intel 6300ESB USB 2.0 controller"; 159 case 0x24cd8086: 160 return "Intel 82801DB/L/M (ICH4) USB 2.0 controller"; 161 case 0x24dd8086: 162 return "Intel 82801EB/R (ICH5) USB 2.0 controller"; 163 case 0x265c8086: 164 return "Intel 82801FB (ICH6) USB 2.0 controller"; 165 case 0x27cc8086: 166 return "Intel 82801GB/R (ICH7) USB 2.0 controller"; 167 168 case 0x28368086: 169 return "Intel 82801H (ICH8) USB 2.0 controller USB2-A"; 170 case 0x283a8086: 171 return "Intel 82801H (ICH8) USB 2.0 controller USB2-B"; 172 case 0x293a8086: 173 return "Intel 82801I (ICH9) USB 2.0 controller"; 174 case 0x293c8086: 175 return "Intel 82801I (ICH9) USB 2.0 controller"; 176 177 case 0x00e01033: 178 return ("NEC uPD 720100 USB 2.0 controller"); 179 180 case 0x006810de: 181 return "NVIDIA nForce2 USB 2.0 controller"; 182 case 0x008810de: 183 return "NVIDIA nForce2 Ultra 400 USB 2.0 controller"; 184 case 0x00d810de: 185 return "NVIDIA nForce3 USB 2.0 controller"; 186 case 0x00e810de: 187 return "NVIDIA nForce3 250 USB 2.0 controller"; 188 case 0x005b10de: 189 return "NVIDIA nForce4 USB 2.0 controller"; 190 191 case 0x15621131: 192 return "Philips ISP156x USB 2.0 controller"; 193 194 case 0x31041106: 195 return ("VIA VT6202 USB 2.0 controller"); 196 197 default: 198 break; 199 } 200 201 if ((pci_get_class(self) == PCIC_SERIALBUS) 202 && (pci_get_subclass(self) == PCIS_SERIALBUS_USB) 203 && (pci_get_progif(self) == PCI_INTERFACE_EHCI)) { 204 return ("EHCI (generic) USB 2.0 controller"); 205 } 206 return (NULL); /* dunno */ 207} 208 209static int 210ehci_pci_probe(device_t self) 211{ 212 const char *desc = ehci_pci_match(self); 213 214 if (desc) { 215 device_set_desc(self, desc); 216 return (0); 217 } else { 218 return (ENXIO); 219 } 220} 221 222static int 223ehci_pci_attach(device_t self) 224{ 225 ehci_softc_t *sc = device_get_softc(self); 226 int err; 227 int rid; 228 229 /* initialise some bus fields */ 230 sc->sc_bus.parent = self; 231 sc->sc_bus.devices = sc->sc_devices; 232 sc->sc_bus.devices_max = EHCI_MAX_DEVICES; 233 234 /* get all DMA memory */ 235 if (usb2_bus_mem_alloc_all(&sc->sc_bus, 236 USB_GET_DMA_TAG(self), &ehci_iterate_hw_softc)) { 237 return (ENOMEM); 238 } 239 240 pci_enable_busmaster(self); 241 242 switch (pci_read_config(self, PCI_USBREV, 1) & PCI_USB_REV_MASK) { 243 case PCI_USB_REV_PRE_1_0: 244 case PCI_USB_REV_1_0: 245 case PCI_USB_REV_1_1: 246 /* 247 * NOTE: some EHCI USB controllers have the wrong USB 248 * revision number. It appears those controllers are 249 * fully compliant so we just ignore this value in 250 * some common cases. 251 */ 252 device_printf(self, "pre-2.0 USB revision (ignored)\n"); 253 /* fallthrough */ 254 case PCI_USB_REV_2_0: 255 sc->sc_bus.usbrev = USB_REV_2_0; 256 break; 257 default: 258 /* Quirk for Parallels Desktop 4.0 */ 259 device_printf(self, "USB revision is unknown. Assuming v2.0.\n"); 260 sc->sc_bus.usbrev = USB_REV_2_0; 261 break; 262 } 263 264 rid = PCI_CBMEM; 265 sc->sc_io_res = bus_alloc_resource_any(self, SYS_RES_MEMORY, &rid, 266 RF_ACTIVE); 267 if (!sc->sc_io_res) { 268 device_printf(self, "Could not map memory\n"); 269 goto error; 270 } 271 sc->sc_io_tag = rman_get_bustag(sc->sc_io_res); 272 sc->sc_io_hdl = rman_get_bushandle(sc->sc_io_res); 273 sc->sc_io_size = rman_get_size(sc->sc_io_res); 274 275 rid = 0; 276 sc->sc_irq_res = bus_alloc_resource_any(self, SYS_RES_IRQ, &rid, 277 RF_SHAREABLE | RF_ACTIVE); 278 if (sc->sc_irq_res == NULL) { 279 device_printf(self, "Could not allocate irq\n"); 280 goto error; 281 } 282 sc->sc_bus.bdev = device_add_child(self, "usbus", -1); 283 if (!sc->sc_bus.bdev) { 284 device_printf(self, "Could not add USB device\n"); 285 goto error; 286 } 287 device_set_ivars(sc->sc_bus.bdev, &sc->sc_bus); 288 289 /* 290 * ehci_pci_match will never return NULL if ehci_pci_probe 291 * succeeded 292 */ 293 device_set_desc(sc->sc_bus.bdev, ehci_pci_match(self)); 294 switch (pci_get_vendor(self)) { 295 case PCI_EHCI_VENDORID_ACERLABS: 296 sprintf(sc->sc_vendor, "AcerLabs"); 297 break; 298 case PCI_EHCI_VENDORID_AMD: 299 sprintf(sc->sc_vendor, "AMD"); 300 break; 301 case PCI_EHCI_VENDORID_APPLE: 302 sprintf(sc->sc_vendor, "Apple"); 303 break; 304 case PCI_EHCI_VENDORID_ATI: 305 sprintf(sc->sc_vendor, "ATI"); 306 break; 307 case PCI_EHCI_VENDORID_CMDTECH: 308 sprintf(sc->sc_vendor, "CMDTECH"); 309 break; 310 case PCI_EHCI_VENDORID_INTEL: 311 sprintf(sc->sc_vendor, "Intel"); 312 break; 313 case PCI_EHCI_VENDORID_NEC: 314 sprintf(sc->sc_vendor, "NEC"); 315 break; 316 case PCI_EHCI_VENDORID_OPTI: 317 sprintf(sc->sc_vendor, "OPTi"); 318 break; 319 case PCI_EHCI_VENDORID_PHILIPS: 320 sprintf(sc->sc_vendor, "Philips"); 321 break; 322 case PCI_EHCI_VENDORID_SIS: 323 sprintf(sc->sc_vendor, "SiS"); 324 break; 325 case PCI_EHCI_VENDORID_NVIDIA: 326 case PCI_EHCI_VENDORID_NVIDIA2: 327 sprintf(sc->sc_vendor, "nVidia"); 328 break; 329 case PCI_EHCI_VENDORID_VIA: 330 sprintf(sc->sc_vendor, "VIA"); 331 break; 332 default: 333 if (bootverbose) 334 device_printf(self, "(New EHCI DeviceId=0x%08x)\n", 335 pci_get_devid(self)); 336 sprintf(sc->sc_vendor, "(0x%04x)", pci_get_vendor(self)); 337 } 338 339#if (__FreeBSD_version >= 700031) 340 err = bus_setup_intr(self, sc->sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE, 341 NULL, (driver_intr_t *)ehci_interrupt, sc, &sc->sc_intr_hdl); 342#else 343 err = bus_setup_intr(self, sc->sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE, 344 (driver_intr_t *)ehci_interrupt, sc, &sc->sc_intr_hdl); 345#endif 346 if (err) { 347 device_printf(self, "Could not setup irq, %d\n", err); 348 sc->sc_intr_hdl = NULL; 349 goto error; 350 } 351 ehci_pci_takecontroller(self); 352 err = ehci_init(sc); 353 if (!err) { 354 err = device_probe_and_attach(sc->sc_bus.bdev); 355 } 356 if (err) { 357 device_printf(self, "USB init failed err=%d\n", err); 358 goto error; 359 } 360 return (0); 361 362error: 363 ehci_pci_detach(self); 364 return (ENXIO); 365} 366 367static int 368ehci_pci_detach(device_t self) 369{ 370 ehci_softc_t *sc = device_get_softc(self); 371 device_t bdev; 372 373 if (sc->sc_bus.bdev) { 374 bdev = sc->sc_bus.bdev; 375 device_detach(bdev); 376 device_delete_child(self, bdev); 377 } 378 /* during module unload there are lots of children leftover */ 379 device_delete_all_children(self); 380 381 pci_disable_busmaster(self); 382 383 /* 384 * disable interrupts that might have been switched on in ehci_init 385 */ 386 if (sc->sc_io_res) { 387 EWRITE4(sc, EHCI_USBINTR, 0); 388 } 389 if (sc->sc_irq_res && sc->sc_intr_hdl) { 390 /* 391 * only call ehci_detach() after ehci_init() 392 */ 393 ehci_detach(sc); 394 395 int err = bus_teardown_intr(self, sc->sc_irq_res, sc->sc_intr_hdl); 396 397 if (err) 398 /* XXX or should we panic? */ 399 device_printf(self, "Could not tear down irq, %d\n", 400 err); 401 sc->sc_intr_hdl = NULL; 402 } 403 if (sc->sc_irq_res) { 404 bus_release_resource(self, SYS_RES_IRQ, 0, sc->sc_irq_res); 405 sc->sc_irq_res = NULL; 406 } 407 if (sc->sc_io_res) { 408 bus_release_resource(self, SYS_RES_MEMORY, PCI_CBMEM, 409 sc->sc_io_res); 410 sc->sc_io_res = NULL; 411 } 412 usb2_bus_mem_free_all(&sc->sc_bus, &ehci_iterate_hw_softc); 413 414 return (0); 415} 416 417static void 418ehci_pci_takecontroller(device_t self) 419{ 420 ehci_softc_t *sc = device_get_softc(self); 421 uint32_t cparams; 422 uint32_t eec; 423 uint16_t to; 424 uint8_t eecp; 425 uint8_t bios_sem; 426 427 cparams = EREAD4(sc, EHCI_HCCPARAMS); 428 429 /* Synchronise with the BIOS if it owns the controller. */ 430 for (eecp = EHCI_HCC_EECP(cparams); eecp != 0; 431 eecp = EHCI_EECP_NEXT(eec)) { 432 eec = pci_read_config(self, eecp, 4); 433 if (EHCI_EECP_ID(eec) != EHCI_EC_LEGSUP) { 434 continue; 435 } 436 bios_sem = pci_read_config(self, eecp + 437 EHCI_LEGSUP_BIOS_SEM, 1); 438 if (bios_sem == 0) { 439 continue; 440 } 441 device_printf(sc->sc_bus.bdev, "waiting for BIOS " 442 "to give up control\n"); 443 pci_write_config(self, eecp + 444 EHCI_LEGSUP_OS_SEM, 1, 1); 445 to = 500; 446 while (1) { 447 bios_sem = pci_read_config(self, eecp + 448 EHCI_LEGSUP_BIOS_SEM, 1); 449 if (bios_sem == 0) 450 break; 451 452 if (--to == 0) { 453 device_printf(sc->sc_bus.bdev, 454 "timed out waiting for BIOS\n"); 455 break; 456 } 457 usb2_pause_mtx(NULL, hz / 100); /* wait 10ms */ 458 } 459 } 460} 461 462static driver_t ehci_driver = 463{ 464 .name = "ehci", 465 .methods = (device_method_t[]){ 466 /* device interface */ 467 DEVMETHOD(device_probe, ehci_pci_probe), 468 DEVMETHOD(device_attach, ehci_pci_attach), 469 DEVMETHOD(device_detach, ehci_pci_detach), 470 DEVMETHOD(device_suspend, ehci_pci_suspend), 471 DEVMETHOD(device_resume, ehci_pci_resume), 472 DEVMETHOD(device_shutdown, ehci_pci_shutdown), 473 /* bus interface */ 474 DEVMETHOD(bus_print_child, bus_generic_print_child), 475 476 {0, 0} 477 }, 478 .size = sizeof(struct ehci_softc), 479}; 480 481static devclass_t ehci_devclass; 482 483DRIVER_MODULE(ehci, pci, ehci_driver, ehci_devclass, 0, 0); 484MODULE_DEPEND(ehci, usb, 1, 1, 1); 485