1 /* $FreeBSD$ */ 2 /*- 3 * Copyright (c) 2010 Hans Petter Selasky. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27 /* 28 * USB eXtensible Host Controller Interface, a.k.a. USB 3.0 controller. 29 * 30 * The XHCI 1.0 spec can be found at 31 * http://www.intel.com/technology/usb/download/xHCI_Specification_for_USB.pdf 32 * and the USB 3.0 spec at 33 * http://www.usb.org/developers/docs/usb_30_spec_060910.zip 34 */ 35 36 /* 37 * A few words about the design implementation: This driver emulates 38 * the concept about TDs which is found in EHCI specification. This 39 * way we achieve that the USB controller drivers look similar to 40 * eachother which makes it easier to understand the code. 41 */ 42 43 #ifdef USB_GLOBAL_INCLUDE_FILE 44 #include USB_GLOBAL_INCLUDE_FILE 45 #else 46 #include <sys/stdint.h> 47 #include <sys/stddef.h> 48 #include <sys/param.h> 49 #include <sys/queue.h> 50 #include <sys/types.h> 51 #include <sys/systm.h> 52 #include <sys/kernel.h> 53 #include <sys/bus.h> 54 #include <sys/module.h> 55 #include <sys/lock.h> 56 #include <sys/mutex.h> 57 #include <sys/condvar.h> 58 #include <sys/sysctl.h> 59 #include <sys/sx.h> 60 #include <sys/unistd.h> 61 #include <sys/callout.h> 62 #include <sys/malloc.h> 63 #include <sys/priv.h> 64 65 #include <dev/usb/usb.h> 66 #include <dev/usb/usbdi.h> 67 68 #define USB_DEBUG_VAR xhcidebug 69 70 #include <dev/usb/usb_core.h> 71 #include <dev/usb/usb_debug.h> 72 #include <dev/usb/usb_busdma.h> 73 #include <dev/usb/usb_process.h> 74 #include <dev/usb/usb_transfer.h> 75 #include <dev/usb/usb_device.h> 76 #include <dev/usb/usb_hub.h> 77 #include <dev/usb/usb_util.h> 78 79 #include <dev/usb/usb_controller.h> 80 #include <dev/usb/usb_bus.h> 81 #endif /* USB_GLOBAL_INCLUDE_FILE */ 82 83 #include <dev/usb/controller/xhci.h> 84 #include <dev/usb/controller/xhcireg.h> 85 86 #define XHCI_BUS2SC(bus) \ 87 ((struct xhci_softc *)(((uint8_t *)(bus)) - \ 88 ((uint8_t *)&(((struct xhci_softc *)0)->sc_bus)))) 89 90 static SYSCTL_NODE(_hw_usb, OID_AUTO, xhci, CTLFLAG_RW, 0, "USB XHCI"); 91 92 static int xhcistreams; 93 SYSCTL_INT(_hw_usb_xhci, OID_AUTO, streams, CTLFLAG_RWTUN, 94 &xhcistreams, 0, "Set to enable streams mode support"); 95 96 #ifdef USB_DEBUG 97 static int xhcidebug; 98 static int xhciroute; 99 static int xhcipolling; 100 static int xhcidma32; 101 102 SYSCTL_INT(_hw_usb_xhci, OID_AUTO, debug, CTLFLAG_RWTUN, 103 &xhcidebug, 0, "Debug level"); 104 SYSCTL_INT(_hw_usb_xhci, OID_AUTO, xhci_port_route, CTLFLAG_RWTUN, 105 &xhciroute, 0, "Routing bitmap for switching EHCI ports to the XHCI controller"); 106 SYSCTL_INT(_hw_usb_xhci, OID_AUTO, use_polling, CTLFLAG_RWTUN, 107 &xhcipolling, 0, "Set to enable software interrupt polling for the XHCI controller"); 108 SYSCTL_INT(_hw_usb_xhci, OID_AUTO, dma32, CTLFLAG_RWTUN, 109 &xhcidma32, 0, "Set to only use 32-bit DMA for the XHCI controller"); 110 #else 111 #define xhciroute 0 112 #define xhcidma32 0 113 #endif 114 115 #define XHCI_INTR_ENDPT 1 116 117 struct xhci_std_temp { 118 struct xhci_softc *sc; 119 struct usb_page_cache *pc; 120 struct xhci_td *td; 121 struct xhci_td *td_next; 122 uint32_t len; 123 uint32_t offset; 124 uint32_t max_packet_size; 125 uint32_t average; 126 uint16_t isoc_delta; 127 uint16_t isoc_frame; 128 uint8_t shortpkt; 129 uint8_t multishort; 130 uint8_t last_frame; 131 uint8_t trb_type; 132 uint8_t direction; 133 uint8_t tbc; 134 uint8_t tlbpc; 135 uint8_t step_td; 136 uint8_t do_isoc_sync; 137 }; 138 139 static void xhci_do_poll(struct usb_bus *); 140 static void xhci_device_done(struct usb_xfer *, usb_error_t); 141 static void xhci_root_intr(struct xhci_softc *); 142 static void xhci_free_device_ext(struct usb_device *); 143 static struct xhci_endpoint_ext *xhci_get_endpoint_ext(struct usb_device *, 144 struct usb_endpoint_descriptor *); 145 static usb_proc_callback_t xhci_configure_msg; 146 static usb_error_t xhci_configure_device(struct usb_device *); 147 static usb_error_t xhci_configure_endpoint(struct usb_device *, 148 struct usb_endpoint_descriptor *, struct xhci_endpoint_ext *, 149 uint16_t, uint8_t, uint8_t, uint8_t, uint16_t, uint16_t, 150 uint8_t); 151 static usb_error_t xhci_configure_mask(struct usb_device *, 152 uint32_t, uint8_t); 153 static usb_error_t xhci_cmd_evaluate_ctx(struct xhci_softc *, 154 uint64_t, uint8_t); 155 static void xhci_endpoint_doorbell(struct usb_xfer *); 156 static void xhci_ctx_set_le32(struct xhci_softc *sc, volatile uint32_t *ptr, uint32_t val); 157 static uint32_t xhci_ctx_get_le32(struct xhci_softc *sc, volatile uint32_t *ptr); 158 static void xhci_ctx_set_le64(struct xhci_softc *sc, volatile uint64_t *ptr, uint64_t val); 159 #ifdef USB_DEBUG 160 static uint64_t xhci_ctx_get_le64(struct xhci_softc *sc, volatile uint64_t *ptr); 161 #endif 162 163 static const struct usb_bus_methods xhci_bus_methods; 164 165 #ifdef USB_DEBUG 166 static void 167 xhci_dump_trb(struct xhci_trb *trb) 168 { 169 DPRINTFN(5, "trb = %p\n", trb); 170 DPRINTFN(5, "qwTrb0 = 0x%016llx\n", (long long)le64toh(trb->qwTrb0)); 171 DPRINTFN(5, "dwTrb2 = 0x%08x\n", le32toh(trb->dwTrb2)); 172 DPRINTFN(5, "dwTrb3 = 0x%08x\n", le32toh(trb->dwTrb3)); 173 } 174 175 static void 176 xhci_dump_endpoint(struct xhci_softc *sc, struct xhci_endp_ctx *pep) 177 { 178 DPRINTFN(5, "pep = %p\n", pep); 179 DPRINTFN(5, "dwEpCtx0=0x%08x\n", xhci_ctx_get_le32(sc, &pep->dwEpCtx0)); 180 DPRINTFN(5, "dwEpCtx1=0x%08x\n", xhci_ctx_get_le32(sc, &pep->dwEpCtx1)); 181 DPRINTFN(5, "qwEpCtx2=0x%016llx\n", (long long)xhci_ctx_get_le64(sc, &pep->qwEpCtx2)); 182 DPRINTFN(5, "dwEpCtx4=0x%08x\n", xhci_ctx_get_le32(sc, &pep->dwEpCtx4)); 183 DPRINTFN(5, "dwEpCtx5=0x%08x\n", xhci_ctx_get_le32(sc, &pep->dwEpCtx5)); 184 DPRINTFN(5, "dwEpCtx6=0x%08x\n", xhci_ctx_get_le32(sc, &pep->dwEpCtx6)); 185 DPRINTFN(5, "dwEpCtx7=0x%08x\n", xhci_ctx_get_le32(sc, &pep->dwEpCtx7)); 186 } 187 188 static void 189 xhci_dump_device(struct xhci_softc *sc, struct xhci_slot_ctx *psl) 190 { 191 DPRINTFN(5, "psl = %p\n", psl); 192 DPRINTFN(5, "dwSctx0=0x%08x\n", xhci_ctx_get_le32(sc, &psl->dwSctx0)); 193 DPRINTFN(5, "dwSctx1=0x%08x\n", xhci_ctx_get_le32(sc, &psl->dwSctx1)); 194 DPRINTFN(5, "dwSctx2=0x%08x\n", xhci_ctx_get_le32(sc, &psl->dwSctx2)); 195 DPRINTFN(5, "dwSctx3=0x%08x\n", xhci_ctx_get_le32(sc, &psl->dwSctx3)); 196 } 197 #endif 198 199 uint8_t 200 xhci_use_polling(void) 201 { 202 #ifdef USB_DEBUG 203 return (xhcipolling != 0); 204 #else 205 return (0); 206 #endif 207 } 208 209 static void 210 xhci_iterate_hw_softc(struct usb_bus *bus, usb_bus_mem_sub_cb_t *cb) 211 { 212 struct xhci_softc *sc = XHCI_BUS2SC(bus); 213 uint8_t i; 214 215 cb(bus, &sc->sc_hw.root_pc, &sc->sc_hw.root_pg, 216 sizeof(struct xhci_hw_root), XHCI_PAGE_SIZE); 217 218 cb(bus, &sc->sc_hw.ctx_pc, &sc->sc_hw.ctx_pg, 219 sizeof(struct xhci_dev_ctx_addr), XHCI_PAGE_SIZE); 220 221 for (i = 0; i != XHCI_MAX_SCRATCHPADS; i++) { 222 cb(bus, &sc->sc_hw.scratch_pc[i], &sc->sc_hw.scratch_pg[i], 223 XHCI_PAGE_SIZE, XHCI_PAGE_SIZE); 224 } 225 } 226 227 static void 228 xhci_ctx_set_le32(struct xhci_softc *sc, volatile uint32_t *ptr, uint32_t val) 229 { 230 if (sc->sc_ctx_is_64_byte) { 231 uint32_t offset; 232 /* exploit the fact that our structures are XHCI_PAGE_SIZE aligned */ 233 /* all contexts are initially 32-bytes */ 234 offset = ((uintptr_t)ptr) & ((XHCI_PAGE_SIZE - 1) & ~(31U)); 235 ptr = (volatile uint32_t *)(((volatile uint8_t *)ptr) + offset); 236 } 237 *ptr = htole32(val); 238 } 239 240 static uint32_t 241 xhci_ctx_get_le32(struct xhci_softc *sc, volatile uint32_t *ptr) 242 { 243 if (sc->sc_ctx_is_64_byte) { 244 uint32_t offset; 245 /* exploit the fact that our structures are XHCI_PAGE_SIZE aligned */ 246 /* all contexts are initially 32-bytes */ 247 offset = ((uintptr_t)ptr) & ((XHCI_PAGE_SIZE - 1) & ~(31U)); 248 ptr = (volatile uint32_t *)(((volatile uint8_t *)ptr) + offset); 249 } 250 return (le32toh(*ptr)); 251 } 252 253 static void 254 xhci_ctx_set_le64(struct xhci_softc *sc, volatile uint64_t *ptr, uint64_t val) 255 { 256 if (sc->sc_ctx_is_64_byte) { 257 uint32_t offset; 258 /* exploit the fact that our structures are XHCI_PAGE_SIZE aligned */ 259 /* all contexts are initially 32-bytes */ 260 offset = ((uintptr_t)ptr) & ((XHCI_PAGE_SIZE - 1) & ~(31U)); 261 ptr = (volatile uint64_t *)(((volatile uint8_t *)ptr) + offset); 262 } 263 *ptr = htole64(val); 264 } 265 266 #ifdef USB_DEBUG 267 static uint64_t 268 xhci_ctx_get_le64(struct xhci_softc *sc, volatile uint64_t *ptr) 269 { 270 if (sc->sc_ctx_is_64_byte) { 271 uint32_t offset; 272 /* exploit the fact that our structures are XHCI_PAGE_SIZE aligned */ 273 /* all contexts are initially 32-bytes */ 274 offset = ((uintptr_t)ptr) & ((XHCI_PAGE_SIZE - 1) & ~(31U)); 275 ptr = (volatile uint64_t *)(((volatile uint8_t *)ptr) + offset); 276 } 277 return (le64toh(*ptr)); 278 } 279 #endif 280 281 static int 282 xhci_reset_command_queue_locked(struct xhci_softc *sc) 283 { 284 struct usb_page_search buf_res; 285 struct xhci_hw_root *phwr; 286 uint64_t addr; 287 uint32_t temp; 288 289 DPRINTF("\n"); 290 291 temp = XREAD4(sc, oper, XHCI_CRCR_LO); 292 if (temp & XHCI_CRCR_LO_CRR) { 293 DPRINTF("Command ring running\n"); 294 temp &= ~(XHCI_CRCR_LO_CS | XHCI_CRCR_LO_CA); 295 296 /* 297 * Try to abort the last command as per section 298 * 4.6.1.2 "Aborting a Command" of the XHCI 299 * specification: 300 */ 301 302 /* stop and cancel */ 303 XWRITE4(sc, oper, XHCI_CRCR_LO, temp | XHCI_CRCR_LO_CS); 304 XWRITE4(sc, oper, XHCI_CRCR_HI, 0); 305 306 XWRITE4(sc, oper, XHCI_CRCR_LO, temp | XHCI_CRCR_LO_CA); 307 XWRITE4(sc, oper, XHCI_CRCR_HI, 0); 308 309 /* wait 250ms */ 310 usb_pause_mtx(&sc->sc_bus.bus_mtx, hz / 4); 311 312 /* check if command ring is still running */ 313 temp = XREAD4(sc, oper, XHCI_CRCR_LO); 314 if (temp & XHCI_CRCR_LO_CRR) { 315 DPRINTF("Comand ring still running\n"); 316 return (USB_ERR_IOERROR); 317 } 318 } 319 320 /* reset command ring */ 321 sc->sc_command_ccs = 1; 322 sc->sc_command_idx = 0; 323 324 usbd_get_page(&sc->sc_hw.root_pc, 0, &buf_res); 325 326 /* set up command ring control base address */ 327 addr = buf_res.physaddr; 328 phwr = buf_res.buffer; 329 addr += (uintptr_t)&((struct xhci_hw_root *)0)->hwr_commands[0]; 330 331 DPRINTF("CRCR=0x%016llx\n", (unsigned long long)addr); 332 333 memset(phwr->hwr_commands, 0, sizeof(phwr->hwr_commands)); 334 phwr->hwr_commands[XHCI_MAX_COMMANDS - 1].qwTrb0 = htole64(addr); 335 336 usb_pc_cpu_flush(&sc->sc_hw.root_pc); 337 338 XWRITE4(sc, oper, XHCI_CRCR_LO, ((uint32_t)addr) | XHCI_CRCR_LO_RCS); 339 XWRITE4(sc, oper, XHCI_CRCR_HI, (uint32_t)(addr >> 32)); 340 341 return (0); 342 } 343 344 usb_error_t 345 xhci_start_controller(struct xhci_softc *sc) 346 { 347 struct usb_page_search buf_res; 348 struct xhci_hw_root *phwr; 349 struct xhci_dev_ctx_addr *pdctxa; 350 uint64_t addr; 351 uint32_t temp; 352 uint16_t i; 353 354 DPRINTF("\n"); 355 356 sc->sc_event_ccs = 1; 357 sc->sc_event_idx = 0; 358 sc->sc_command_ccs = 1; 359 sc->sc_command_idx = 0; 360 361 /* Reset controller */ 362 XWRITE4(sc, oper, XHCI_USBCMD, XHCI_CMD_HCRST); 363 364 for (i = 0; i != 100; i++) { 365 usb_pause_mtx(NULL, hz / 100); 366 temp = (XREAD4(sc, oper, XHCI_USBCMD) & XHCI_CMD_HCRST) | 367 (XREAD4(sc, oper, XHCI_USBSTS) & XHCI_STS_CNR); 368 if (!temp) 369 break; 370 } 371 372 if (temp) { 373 device_printf(sc->sc_bus.parent, "Controller " 374 "reset timeout.\n"); 375 return (USB_ERR_IOERROR); 376 } 377 378 /* set up number of device slots */ 379 DPRINTF("CONFIG=0x%08x -> 0x%08x\n", 380 XREAD4(sc, oper, XHCI_CONFIG), sc->sc_noslot); 381 382 XWRITE4(sc, oper, XHCI_CONFIG, sc->sc_noslot); 383 384 temp = XREAD4(sc, oper, XHCI_USBSTS); 385 386 /* clear interrupts */ 387 XWRITE4(sc, oper, XHCI_USBSTS, temp); 388 /* disable all device notifications */ 389 XWRITE4(sc, oper, XHCI_DNCTRL, 0); 390 391 /* set up device context base address */ 392 usbd_get_page(&sc->sc_hw.ctx_pc, 0, &buf_res); 393 pdctxa = buf_res.buffer; 394 memset(pdctxa, 0, sizeof(*pdctxa)); 395 396 addr = buf_res.physaddr; 397 addr += (uintptr_t)&((struct xhci_dev_ctx_addr *)0)->qwSpBufPtr[0]; 398 399 /* slot 0 points to the table of scratchpad pointers */ 400 pdctxa->qwBaaDevCtxAddr[0] = htole64(addr); 401 402 for (i = 0; i != sc->sc_noscratch; i++) { 403 struct usb_page_search buf_scp; 404 usbd_get_page(&sc->sc_hw.scratch_pc[i], 0, &buf_scp); 405 pdctxa->qwSpBufPtr[i] = htole64((uint64_t)buf_scp.physaddr); 406 } 407 408 addr = buf_res.physaddr; 409 410 XWRITE4(sc, oper, XHCI_DCBAAP_LO, (uint32_t)addr); 411 XWRITE4(sc, oper, XHCI_DCBAAP_HI, (uint32_t)(addr >> 32)); 412 XWRITE4(sc, oper, XHCI_DCBAAP_LO, (uint32_t)addr); 413 XWRITE4(sc, oper, XHCI_DCBAAP_HI, (uint32_t)(addr >> 32)); 414 415 /* set up event table size */ 416 DPRINTF("ERSTSZ=0x%08x -> 0x%08x\n", 417 XREAD4(sc, runt, XHCI_ERSTSZ(0)), sc->sc_erst_max); 418 419 XWRITE4(sc, runt, XHCI_ERSTSZ(0), XHCI_ERSTS_SET(sc->sc_erst_max)); 420 421 /* set up interrupt rate */ 422 XWRITE4(sc, runt, XHCI_IMOD(0), sc->sc_imod_default); 423 424 usbd_get_page(&sc->sc_hw.root_pc, 0, &buf_res); 425 426 phwr = buf_res.buffer; 427 addr = buf_res.physaddr; 428 addr += (uintptr_t)&((struct xhci_hw_root *)0)->hwr_events[0]; 429 430 /* reset hardware root structure */ 431 memset(phwr, 0, sizeof(*phwr)); 432 433 phwr->hwr_ring_seg[0].qwEvrsTablePtr = htole64(addr); 434 phwr->hwr_ring_seg[0].dwEvrsTableSize = htole32(XHCI_MAX_EVENTS); 435 436 DPRINTF("ERDP(0)=0x%016llx\n", (unsigned long long)addr); 437 438 XWRITE4(sc, runt, XHCI_ERDP_LO(0), (uint32_t)addr); 439 XWRITE4(sc, runt, XHCI_ERDP_HI(0), (uint32_t)(addr >> 32)); 440 441 addr = buf_res.physaddr; 442 443 DPRINTF("ERSTBA(0)=0x%016llx\n", (unsigned long long)addr); 444 445 XWRITE4(sc, runt, XHCI_ERSTBA_LO(0), (uint32_t)addr); 446 XWRITE4(sc, runt, XHCI_ERSTBA_HI(0), (uint32_t)(addr >> 32)); 447 448 /* set up interrupter registers */ 449 temp = XREAD4(sc, runt, XHCI_IMAN(0)); 450 temp |= XHCI_IMAN_INTR_ENA; 451 XWRITE4(sc, runt, XHCI_IMAN(0), temp); 452 453 /* set up command ring control base address */ 454 addr = buf_res.physaddr; 455 addr += (uintptr_t)&((struct xhci_hw_root *)0)->hwr_commands[0]; 456 457 DPRINTF("CRCR=0x%016llx\n", (unsigned long long)addr); 458 459 XWRITE4(sc, oper, XHCI_CRCR_LO, ((uint32_t)addr) | XHCI_CRCR_LO_RCS); 460 XWRITE4(sc, oper, XHCI_CRCR_HI, (uint32_t)(addr >> 32)); 461 462 phwr->hwr_commands[XHCI_MAX_COMMANDS - 1].qwTrb0 = htole64(addr); 463 464 usb_bus_mem_flush_all(&sc->sc_bus, &xhci_iterate_hw_softc); 465 466 /* Go! */ 467 XWRITE4(sc, oper, XHCI_USBCMD, XHCI_CMD_RS | 468 XHCI_CMD_INTE | XHCI_CMD_HSEE); 469 470 for (i = 0; i != 100; i++) { 471 usb_pause_mtx(NULL, hz / 100); 472 temp = XREAD4(sc, oper, XHCI_USBSTS) & XHCI_STS_HCH; 473 if (!temp) 474 break; 475 } 476 if (temp) { 477 XWRITE4(sc, oper, XHCI_USBCMD, 0); 478 device_printf(sc->sc_bus.parent, "Run timeout.\n"); 479 return (USB_ERR_IOERROR); 480 } 481 482 /* catch any lost interrupts */ 483 xhci_do_poll(&sc->sc_bus); 484 485 if (sc->sc_port_route != NULL) { 486 /* Route all ports to the XHCI by default */ 487 sc->sc_port_route(sc->sc_bus.parent, 488 ~xhciroute, xhciroute); 489 } 490 return (0); 491 } 492 493 usb_error_t 494 xhci_halt_controller(struct xhci_softc *sc) 495 { 496 uint32_t temp; 497 uint16_t i; 498 499 DPRINTF("\n"); 500 501 sc->sc_capa_off = 0; 502 sc->sc_oper_off = XREAD1(sc, capa, XHCI_CAPLENGTH); 503 sc->sc_runt_off = XREAD4(sc, capa, XHCI_RTSOFF) & ~0xF; 504 sc->sc_door_off = XREAD4(sc, capa, XHCI_DBOFF) & ~0x3; 505 506 /* Halt controller */ 507 XWRITE4(sc, oper, XHCI_USBCMD, 0); 508 509 for (i = 0; i != 100; i++) { 510 usb_pause_mtx(NULL, hz / 100); 511 temp = XREAD4(sc, oper, XHCI_USBSTS) & XHCI_STS_HCH; 512 if (temp) 513 break; 514 } 515 516 if (!temp) { 517 device_printf(sc->sc_bus.parent, "Controller halt timeout.\n"); 518 return (USB_ERR_IOERROR); 519 } 520 return (0); 521 } 522 523 usb_error_t 524 xhci_init(struct xhci_softc *sc, device_t self, uint8_t dma32) 525 { 526 uint32_t temp; 527 528 DPRINTF("\n"); 529 530 /* initialize some bus fields */ 531 sc->sc_bus.parent = self; 532 533 /* set the bus revision */ 534 sc->sc_bus.usbrev = USB_REV_3_0; 535 536 /* set up the bus struct */ 537 sc->sc_bus.methods = &xhci_bus_methods; 538 539 /* set up devices array */ 540 sc->sc_bus.devices = sc->sc_devices; 541 sc->sc_bus.devices_max = XHCI_MAX_DEVICES; 542 543 /* set default cycle state in case of early interrupts */ 544 sc->sc_event_ccs = 1; 545 sc->sc_command_ccs = 1; 546 547 /* set up bus space offsets */ 548 sc->sc_capa_off = 0; 549 sc->sc_oper_off = XREAD1(sc, capa, XHCI_CAPLENGTH); 550 sc->sc_runt_off = XREAD4(sc, capa, XHCI_RTSOFF) & ~0x1F; 551 sc->sc_door_off = XREAD4(sc, capa, XHCI_DBOFF) & ~0x3; 552 553 DPRINTF("CAPLENGTH=0x%x\n", sc->sc_oper_off); 554 DPRINTF("RUNTIMEOFFSET=0x%x\n", sc->sc_runt_off); 555 DPRINTF("DOOROFFSET=0x%x\n", sc->sc_door_off); 556 557 DPRINTF("xHCI version = 0x%04x\n", XREAD2(sc, capa, XHCI_HCIVERSION)); 558 559 if (!(XREAD4(sc, oper, XHCI_PAGESIZE) & XHCI_PAGESIZE_4K)) { 560 device_printf(sc->sc_bus.parent, "Controller does " 561 "not support 4K page size.\n"); 562 return (ENXIO); 563 } 564 565 temp = XREAD4(sc, capa, XHCI_HCSPARAMS0); 566 567 DPRINTF("HCS0 = 0x%08x\n", temp); 568 569 /* set up context size */ 570 if (XHCI_HCS0_CSZ(temp)) { 571 sc->sc_ctx_is_64_byte = 1; 572 } else { 573 sc->sc_ctx_is_64_byte = 0; 574 } 575 576 /* get DMA bits */ 577 sc->sc_bus.dma_bits = (XHCI_HCS0_AC64(temp) && 578 xhcidma32 == 0 && dma32 == 0) ? 64 : 32; 579 580 device_printf(self, "%d bytes context size, %d-bit DMA\n", 581 sc->sc_ctx_is_64_byte ? 64 : 32, (int)sc->sc_bus.dma_bits); 582 583 temp = XREAD4(sc, capa, XHCI_HCSPARAMS1); 584 585 /* get number of device slots */ 586 sc->sc_noport = XHCI_HCS1_N_PORTS(temp); 587 588 if (sc->sc_noport == 0) { 589 device_printf(sc->sc_bus.parent, "Invalid number " 590 "of ports: %u\n", sc->sc_noport); 591 return (ENXIO); 592 } 593 594 sc->sc_noport = sc->sc_noport; 595 sc->sc_noslot = XHCI_HCS1_DEVSLOT_MAX(temp); 596 597 DPRINTF("Max slots: %u\n", sc->sc_noslot); 598 599 if (sc->sc_noslot > XHCI_MAX_DEVICES) 600 sc->sc_noslot = XHCI_MAX_DEVICES; 601 602 temp = XREAD4(sc, capa, XHCI_HCSPARAMS2); 603 604 DPRINTF("HCS2=0x%08x\n", temp); 605 606 /* get number of scratchpads */ 607 sc->sc_noscratch = XHCI_HCS2_SPB_MAX(temp); 608 609 if (sc->sc_noscratch > XHCI_MAX_SCRATCHPADS) { 610 device_printf(sc->sc_bus.parent, "XHCI request " 611 "too many scratchpads\n"); 612 return (ENOMEM); 613 } 614 615 DPRINTF("Max scratch: %u\n", sc->sc_noscratch); 616 617 /* get event table size */ 618 sc->sc_erst_max = 1U << XHCI_HCS2_ERST_MAX(temp); 619 if (sc->sc_erst_max > XHCI_MAX_RSEG) 620 sc->sc_erst_max = XHCI_MAX_RSEG; 621 622 temp = XREAD4(sc, capa, XHCI_HCSPARAMS3); 623 624 /* get maximum exit latency */ 625 sc->sc_exit_lat_max = XHCI_HCS3_U1_DEL(temp) + 626 XHCI_HCS3_U2_DEL(temp) + 250 /* us */; 627 628 /* Check if we should use the default IMOD value. */ 629 if (sc->sc_imod_default == 0) 630 sc->sc_imod_default = XHCI_IMOD_DEFAULT; 631 632 /* get all DMA memory */ 633 if (usb_bus_mem_alloc_all(&sc->sc_bus, 634 USB_GET_DMA_TAG(self), &xhci_iterate_hw_softc)) { 635 return (ENOMEM); 636 } 637 638 /* set up command queue mutex and condition varible */ 639 cv_init(&sc->sc_cmd_cv, "CMDQ"); 640 sx_init(&sc->sc_cmd_sx, "CMDQ lock"); 641 642 sc->sc_config_msg[0].hdr.pm_callback = &xhci_configure_msg; 643 sc->sc_config_msg[0].bus = &sc->sc_bus; 644 sc->sc_config_msg[1].hdr.pm_callback = &xhci_configure_msg; 645 sc->sc_config_msg[1].bus = &sc->sc_bus; 646 647 return (0); 648 } 649 650 void 651 xhci_uninit(struct xhci_softc *sc) 652 { 653 /* 654 * NOTE: At this point the control transfer process is gone 655 * and "xhci_configure_msg" is no longer called. Consequently 656 * waiting for the configuration messages to complete is not 657 * needed. 658 */ 659 usb_bus_mem_free_all(&sc->sc_bus, &xhci_iterate_hw_softc); 660 661 cv_destroy(&sc->sc_cmd_cv); 662 sx_destroy(&sc->sc_cmd_sx); 663 } 664 665 static void 666 xhci_set_hw_power_sleep(struct usb_bus *bus, uint32_t state) 667 { 668 struct xhci_softc *sc = XHCI_BUS2SC(bus); 669 670 switch (state) { 671 case USB_HW_POWER_SUSPEND: 672 DPRINTF("Stopping the XHCI\n"); 673 xhci_halt_controller(sc); 674 break; 675 case USB_HW_POWER_SHUTDOWN: 676 DPRINTF("Stopping the XHCI\n"); 677 xhci_halt_controller(sc); 678 break; 679 case USB_HW_POWER_RESUME: 680 DPRINTF("Starting the XHCI\n"); 681 xhci_start_controller(sc); 682 break; 683 default: 684 break; 685 } 686 } 687 688 static usb_error_t 689 xhci_generic_done_sub(struct usb_xfer *xfer) 690 { 691 struct xhci_td *td; 692 struct xhci_td *td_alt_next; 693 uint32_t len; 694 uint8_t status; 695 696 td = xfer->td_transfer_cache; 697 td_alt_next = td->alt_next; 698 699 if (xfer->aframes != xfer->nframes) 700 usbd_xfer_set_frame_len(xfer, xfer->aframes, 0); 701 702 while (1) { 703 704 usb_pc_cpu_invalidate(td->page_cache); 705 706 status = td->status; 707 len = td->remainder; 708 709 DPRINTFN(4, "xfer=%p[%u/%u] rem=%u/%u status=%u\n", 710 xfer, (unsigned int)xfer->aframes, 711 (unsigned int)xfer->nframes, 712 (unsigned int)len, (unsigned int)td->len, 713 (unsigned int)status); 714 715 /* 716 * Verify the status length and 717 * add the length to "frlengths[]": 718 */ 719 if (len > td->len) { 720 /* should not happen */ 721 DPRINTF("Invalid status length, " 722 "0x%04x/0x%04x bytes\n", len, td->len); 723 status = XHCI_TRB_ERROR_LENGTH; 724 } else if (xfer->aframes != xfer->nframes) { 725 xfer->frlengths[xfer->aframes] += td->len - len; 726 } 727 /* Check for last transfer */ 728 if (((void *)td) == xfer->td_transfer_last) { 729 td = NULL; 730 break; 731 } 732 /* Check for transfer error */ 733 if (status != XHCI_TRB_ERROR_SHORT_PKT && 734 status != XHCI_TRB_ERROR_SUCCESS) { 735 /* the transfer is finished */ 736 td = NULL; 737 break; 738 } 739 /* Check for short transfer */ 740 if (len > 0) { 741 if (xfer->flags_int.short_frames_ok || 742 xfer->flags_int.isochronous_xfr || 743 xfer->flags_int.control_xfr) { 744 /* follow alt next */ 745 td = td->alt_next; 746 } else { 747 /* the transfer is finished */ 748 td = NULL; 749 } 750 break; 751 } 752 td = td->obj_next; 753 754 if (td->alt_next != td_alt_next) { 755 /* this USB frame is complete */ 756 break; 757 } 758 } 759 760 /* update transfer cache */ 761 762 xfer->td_transfer_cache = td; 763 764 return ((status == XHCI_TRB_ERROR_STALL) ? USB_ERR_STALLED : 765 (status != XHCI_TRB_ERROR_SHORT_PKT && 766 status != XHCI_TRB_ERROR_SUCCESS) ? USB_ERR_IOERROR : 767 USB_ERR_NORMAL_COMPLETION); 768 } 769 770 static void 771 xhci_generic_done(struct usb_xfer *xfer) 772 { 773 usb_error_t err = 0; 774 775 DPRINTFN(13, "xfer=%p endpoint=%p transfer done\n", 776 xfer, xfer->endpoint); 777 778 /* reset scanner */ 779 780 xfer->td_transfer_cache = xfer->td_transfer_first; 781 782 if (xfer->flags_int.control_xfr) { 783 784 if (xfer->flags_int.control_hdr) 785 err = xhci_generic_done_sub(xfer); 786 787 xfer->aframes = 1; 788 789 if (xfer->td_transfer_cache == NULL) 790 goto done; 791 } 792 793 while (xfer->aframes != xfer->nframes) { 794 795 err = xhci_generic_done_sub(xfer); 796 xfer->aframes++; 797 798 if (xfer->td_transfer_cache == NULL) 799 goto done; 800 } 801 802 if (xfer->flags_int.control_xfr && 803 !xfer->flags_int.control_act) 804 err = xhci_generic_done_sub(xfer); 805 done: 806 /* transfer is complete */ 807 xhci_device_done(xfer, err); 808 } 809 810 static void 811 xhci_activate_transfer(struct usb_xfer *xfer) 812 { 813 struct xhci_td *td; 814 815 td = xfer->td_transfer_cache; 816 817 usb_pc_cpu_invalidate(td->page_cache); 818 819 if (!(td->td_trb[0].dwTrb3 & htole32(XHCI_TRB_3_CYCLE_BIT))) { 820 821 /* activate the transfer */ 822 823 td->td_trb[0].dwTrb3 |= htole32(XHCI_TRB_3_CYCLE_BIT); 824 usb_pc_cpu_flush(td->page_cache); 825 826 xhci_endpoint_doorbell(xfer); 827 } 828 } 829 830 static void 831 xhci_skip_transfer(struct usb_xfer *xfer) 832 { 833 struct xhci_td *td; 834 struct xhci_td *td_last; 835 836 td = xfer->td_transfer_cache; 837 td_last = xfer->td_transfer_last; 838 839 td = td->alt_next; 840 841 usb_pc_cpu_invalidate(td->page_cache); 842 843 if (!(td->td_trb[0].dwTrb3 & htole32(XHCI_TRB_3_CYCLE_BIT))) { 844 845 usb_pc_cpu_invalidate(td_last->page_cache); 846 847 /* copy LINK TRB to current waiting location */ 848 849 td->td_trb[0].qwTrb0 = td_last->td_trb[td_last->ntrb].qwTrb0; 850 td->td_trb[0].dwTrb2 = td_last->td_trb[td_last->ntrb].dwTrb2; 851 usb_pc_cpu_flush(td->page_cache); 852 853 td->td_trb[0].dwTrb3 = td_last->td_trb[td_last->ntrb].dwTrb3; 854 usb_pc_cpu_flush(td->page_cache); 855 856 xhci_endpoint_doorbell(xfer); 857 } 858 } 859 860 /*------------------------------------------------------------------------* 861 * xhci_check_transfer 862 *------------------------------------------------------------------------*/ 863 static void 864 xhci_check_transfer(struct xhci_softc *sc, struct xhci_trb *trb) 865 { 866 struct xhci_endpoint_ext *pepext; 867 int64_t offset; 868 uint64_t td_event; 869 uint32_t temp; 870 uint32_t remainder; 871 uint16_t stream_id; 872 uint16_t i; 873 uint8_t status; 874 uint8_t halted; 875 uint8_t epno; 876 uint8_t index; 877 878 /* decode TRB */ 879 td_event = le64toh(trb->qwTrb0); 880 temp = le32toh(trb->dwTrb2); 881 882 remainder = XHCI_TRB_2_REM_GET(temp); 883 status = XHCI_TRB_2_ERROR_GET(temp); 884 stream_id = XHCI_TRB_2_STREAM_GET(temp); 885 886 temp = le32toh(trb->dwTrb3); 887 epno = XHCI_TRB_3_EP_GET(temp); 888 index = XHCI_TRB_3_SLOT_GET(temp); 889 890 /* check if error means halted */ 891 halted = (status != XHCI_TRB_ERROR_SHORT_PKT && 892 status != XHCI_TRB_ERROR_SUCCESS); 893 894 DPRINTF("slot=%u epno=%u stream=%u remainder=%u status=%u\n", 895 index, epno, stream_id, remainder, status); 896 897 if (index > sc->sc_noslot) { 898 DPRINTF("Invalid slot.\n"); 899 return; 900 } 901 902 if ((epno == 0) || (epno >= XHCI_MAX_ENDPOINTS)) { 903 DPRINTF("Invalid endpoint.\n"); 904 return; 905 } 906 907 pepext = &sc->sc_hw.devs[index].endp[epno]; 908 909 if (pepext->trb_ep_mode != USB_EP_MODE_STREAMS) { 910 stream_id = 0; 911 DPRINTF("stream_id=0\n"); 912 } else if (stream_id >= XHCI_MAX_STREAMS) { 913 DPRINTF("Invalid stream ID.\n"); 914 return; 915 } 916 917 /* try to find the USB transfer that generated the event */ 918 for (i = 0; i != (XHCI_MAX_TRANSFERS - 1); i++) { 919 struct usb_xfer *xfer; 920 struct xhci_td *td; 921 922 xfer = pepext->xfer[i + (XHCI_MAX_TRANSFERS * stream_id)]; 923 if (xfer == NULL) 924 continue; 925 926 td = xfer->td_transfer_cache; 927 928 DPRINTFN(5, "Checking if 0x%016llx == (0x%016llx .. 0x%016llx)\n", 929 (long long)td_event, 930 (long long)td->td_self, 931 (long long)td->td_self + sizeof(td->td_trb)); 932 933 /* 934 * NOTE: Some XHCI implementations might not trigger 935 * an event on the last LINK TRB so we need to 936 * consider both the last and second last event 937 * address as conditions for a successful transfer. 938 * 939 * NOTE: We assume that the XHCI will only trigger one 940 * event per chain of TRBs. 941 */ 942 943 offset = td_event - td->td_self; 944 945 if (offset >= 0 && 946 offset < (int64_t)sizeof(td->td_trb)) { 947 948 usb_pc_cpu_invalidate(td->page_cache); 949 950 /* compute rest of remainder, if any */ 951 for (i = (offset / 16) + 1; i < td->ntrb; i++) { 952 temp = le32toh(td->td_trb[i].dwTrb2); 953 remainder += XHCI_TRB_2_BYTES_GET(temp); 954 } 955 956 DPRINTFN(5, "New remainder: %u\n", remainder); 957 958 /* clear isochronous transfer errors */ 959 if (xfer->flags_int.isochronous_xfr) { 960 if (halted) { 961 halted = 0; 962 status = XHCI_TRB_ERROR_SUCCESS; 963 remainder = td->len; 964 } 965 } 966 967 /* "td->remainder" is verified later */ 968 td->remainder = remainder; 969 td->status = status; 970 971 usb_pc_cpu_flush(td->page_cache); 972 973 /* 974 * 1) Last transfer descriptor makes the 975 * transfer done 976 */ 977 if (((void *)td) == xfer->td_transfer_last) { 978 DPRINTF("TD is last\n"); 979 xhci_generic_done(xfer); 980 break; 981 } 982 983 /* 984 * 2) Any kind of error makes the transfer 985 * done 986 */ 987 if (halted) { 988 DPRINTF("TD has I/O error\n"); 989 xhci_generic_done(xfer); 990 break; 991 } 992 993 /* 994 * 3) If there is no alternate next transfer, 995 * a short packet also makes the transfer done 996 */ 997 if (td->remainder > 0) { 998 if (td->alt_next == NULL) { 999 DPRINTF( 1000 "short TD has no alternate next\n"); 1001 xhci_generic_done(xfer); 1002 break; 1003 } 1004 DPRINTF("TD has short pkt\n"); 1005 if (xfer->flags_int.short_frames_ok || 1006 xfer->flags_int.isochronous_xfr || 1007 xfer->flags_int.control_xfr) { 1008 /* follow the alt next */ 1009 xfer->td_transfer_cache = td->alt_next; 1010 xhci_activate_transfer(xfer); 1011 break; 1012 } 1013 xhci_skip_transfer(xfer); 1014 xhci_generic_done(xfer); 1015 break; 1016 } 1017 1018 /* 1019 * 4) Transfer complete - go to next TD 1020 */ 1021 DPRINTF("Following next TD\n"); 1022 xfer->td_transfer_cache = td->obj_next; 1023 xhci_activate_transfer(xfer); 1024 break; /* there should only be one match */ 1025 } 1026 } 1027 } 1028 1029 static int 1030 xhci_check_command(struct xhci_softc *sc, struct xhci_trb *trb) 1031 { 1032 if (sc->sc_cmd_addr == trb->qwTrb0) { 1033 DPRINTF("Received command event\n"); 1034 sc->sc_cmd_result[0] = trb->dwTrb2; 1035 sc->sc_cmd_result[1] = trb->dwTrb3; 1036 cv_signal(&sc->sc_cmd_cv); 1037 return (1); /* command match */ 1038 } 1039 return (0); 1040 } 1041 1042 static int 1043 xhci_interrupt_poll(struct xhci_softc *sc) 1044 { 1045 struct usb_page_search buf_res; 1046 struct xhci_hw_root *phwr; 1047 uint64_t addr; 1048 uint32_t temp; 1049 int retval = 0; 1050 uint16_t i; 1051 uint8_t event; 1052 uint8_t j; 1053 uint8_t k; 1054 uint8_t t; 1055 1056 usbd_get_page(&sc->sc_hw.root_pc, 0, &buf_res); 1057 1058 phwr = buf_res.buffer; 1059 1060 /* Receive any events */ 1061 1062 usb_pc_cpu_invalidate(&sc->sc_hw.root_pc); 1063 1064 i = sc->sc_event_idx; 1065 j = sc->sc_event_ccs; 1066 t = 2; 1067 1068 while (1) { 1069 1070 temp = le32toh(phwr->hwr_events[i].dwTrb3); 1071 1072 k = (temp & XHCI_TRB_3_CYCLE_BIT) ? 1 : 0; 1073 1074 if (j != k) 1075 break; 1076 1077 event = XHCI_TRB_3_TYPE_GET(temp); 1078 1079 DPRINTFN(10, "event[%u] = %u (0x%016llx 0x%08lx 0x%08lx)\n", 1080 i, event, (long long)le64toh(phwr->hwr_events[i].qwTrb0), 1081 (long)le32toh(phwr->hwr_events[i].dwTrb2), 1082 (long)le32toh(phwr->hwr_events[i].dwTrb3)); 1083 1084 switch (event) { 1085 case XHCI_TRB_EVENT_TRANSFER: 1086 xhci_check_transfer(sc, &phwr->hwr_events[i]); 1087 break; 1088 case XHCI_TRB_EVENT_CMD_COMPLETE: 1089 retval |= xhci_check_command(sc, &phwr->hwr_events[i]); 1090 break; 1091 default: 1092 DPRINTF("Unhandled event = %u\n", event); 1093 break; 1094 } 1095 1096 i++; 1097 1098 if (i == XHCI_MAX_EVENTS) { 1099 i = 0; 1100 j ^= 1; 1101 1102 /* check for timeout */ 1103 if (!--t) 1104 break; 1105 } 1106 } 1107 1108 sc->sc_event_idx = i; 1109 sc->sc_event_ccs = j; 1110 1111 /* 1112 * NOTE: The Event Ring Dequeue Pointer Register is 64-bit 1113 * latched. That means to activate the register we need to 1114 * write both the low and high double word of the 64-bit 1115 * register. 1116 */ 1117 1118 addr = buf_res.physaddr; 1119 addr += (uintptr_t)&((struct xhci_hw_root *)0)->hwr_events[i]; 1120 1121 /* try to clear busy bit */ 1122 addr |= XHCI_ERDP_LO_BUSY; 1123 1124 XWRITE4(sc, runt, XHCI_ERDP_LO(0), (uint32_t)addr); 1125 XWRITE4(sc, runt, XHCI_ERDP_HI(0), (uint32_t)(addr >> 32)); 1126 1127 return (retval); 1128 } 1129 1130 static usb_error_t 1131 xhci_do_command(struct xhci_softc *sc, struct xhci_trb *trb, 1132 uint16_t timeout_ms) 1133 { 1134 struct usb_page_search buf_res; 1135 struct xhci_hw_root *phwr; 1136 uint64_t addr; 1137 uint32_t temp; 1138 uint8_t i; 1139 uint8_t j; 1140 uint8_t timeout = 0; 1141 int err; 1142 1143 XHCI_CMD_ASSERT_LOCKED(sc); 1144 1145 /* get hardware root structure */ 1146 1147 usbd_get_page(&sc->sc_hw.root_pc, 0, &buf_res); 1148 1149 phwr = buf_res.buffer; 1150 1151 /* Queue command */ 1152 1153 USB_BUS_LOCK(&sc->sc_bus); 1154 retry: 1155 i = sc->sc_command_idx; 1156 j = sc->sc_command_ccs; 1157 1158 DPRINTFN(10, "command[%u] = %u (0x%016llx, 0x%08lx, 0x%08lx)\n", 1159 i, XHCI_TRB_3_TYPE_GET(le32toh(trb->dwTrb3)), 1160 (long long)le64toh(trb->qwTrb0), 1161 (long)le32toh(trb->dwTrb2), 1162 (long)le32toh(trb->dwTrb3)); 1163 1164 phwr->hwr_commands[i].qwTrb0 = trb->qwTrb0; 1165 phwr->hwr_commands[i].dwTrb2 = trb->dwTrb2; 1166 1167 usb_pc_cpu_flush(&sc->sc_hw.root_pc); 1168 1169 temp = trb->dwTrb3; 1170 1171 if (j) 1172 temp |= htole32(XHCI_TRB_3_CYCLE_BIT); 1173 else 1174 temp &= ~htole32(XHCI_TRB_3_CYCLE_BIT); 1175 1176 temp &= ~htole32(XHCI_TRB_3_TC_BIT); 1177 1178 phwr->hwr_commands[i].dwTrb3 = temp; 1179 1180 usb_pc_cpu_flush(&sc->sc_hw.root_pc); 1181 1182 addr = buf_res.physaddr; 1183 addr += (uintptr_t)&((struct xhci_hw_root *)0)->hwr_commands[i]; 1184 1185 sc->sc_cmd_addr = htole64(addr); 1186 1187 i++; 1188 1189 if (i == (XHCI_MAX_COMMANDS - 1)) { 1190 1191 if (j) { 1192 temp = htole32(XHCI_TRB_3_TC_BIT | 1193 XHCI_TRB_3_TYPE_SET(XHCI_TRB_TYPE_LINK) | 1194 XHCI_TRB_3_CYCLE_BIT); 1195 } else { 1196 temp = htole32(XHCI_TRB_3_TC_BIT | 1197 XHCI_TRB_3_TYPE_SET(XHCI_TRB_TYPE_LINK)); 1198 } 1199 1200 phwr->hwr_commands[i].dwTrb3 = temp; 1201 1202 usb_pc_cpu_flush(&sc->sc_hw.root_pc); 1203 1204 i = 0; 1205 j ^= 1; 1206 } 1207 1208 sc->sc_command_idx = i; 1209 sc->sc_command_ccs = j; 1210 1211 XWRITE4(sc, door, XHCI_DOORBELL(0), 0); 1212 1213 err = cv_timedwait(&sc->sc_cmd_cv, &sc->sc_bus.bus_mtx, 1214 USB_MS_TO_TICKS(timeout_ms)); 1215 1216 /* 1217 * In some error cases event interrupts are not generated. 1218 * Poll one time to see if the command has completed. 1219 */ 1220 if (err != 0 && xhci_interrupt_poll(sc) != 0) { 1221 DPRINTF("Command was completed when polling\n"); 1222 err = 0; 1223 } 1224 if (err != 0) { 1225 DPRINTF("Command timeout!\n"); 1226 /* 1227 * After some weeks of continuous operation, it has 1228 * been observed that the ASMedia Technology, ASM1042 1229 * SuperSpeed USB Host Controller can suddenly stop 1230 * accepting commands via the command queue. Try to 1231 * first reset the command queue. If that fails do a 1232 * host controller reset. 1233 */ 1234 if (timeout == 0 && 1235 xhci_reset_command_queue_locked(sc) == 0) { 1236 temp = le32toh(trb->dwTrb3); 1237 1238 /* 1239 * Avoid infinite XHCI reset loops if the set 1240 * address command fails to respond due to a 1241 * non-enumerating device: 1242 */ 1243 if (XHCI_TRB_3_TYPE_GET(temp) == XHCI_TRB_TYPE_ADDRESS_DEVICE && 1244 (temp & XHCI_TRB_3_BSR_BIT) == 0) { 1245 DPRINTF("Set address timeout\n"); 1246 } else { 1247 timeout = 1; 1248 goto retry; 1249 } 1250 } else { 1251 DPRINTF("Controller reset!\n"); 1252 usb_bus_reset_async_locked(&sc->sc_bus); 1253 } 1254 err = USB_ERR_TIMEOUT; 1255 trb->dwTrb2 = 0; 1256 trb->dwTrb3 = 0; 1257 } else { 1258 temp = le32toh(sc->sc_cmd_result[0]); 1259 if (XHCI_TRB_2_ERROR_GET(temp) != XHCI_TRB_ERROR_SUCCESS) 1260 err = USB_ERR_IOERROR; 1261 1262 trb->dwTrb2 = sc->sc_cmd_result[0]; 1263 trb->dwTrb3 = sc->sc_cmd_result[1]; 1264 } 1265 1266 USB_BUS_UNLOCK(&sc->sc_bus); 1267 1268 return (err); 1269 } 1270 1271 #if 0 1272 static usb_error_t 1273 xhci_cmd_nop(struct xhci_softc *sc) 1274 { 1275 struct xhci_trb trb; 1276 uint32_t temp; 1277 1278 DPRINTF("\n"); 1279 1280 trb.qwTrb0 = 0; 1281 trb.dwTrb2 = 0; 1282 temp = XHCI_TRB_3_TYPE_SET(XHCI_TRB_TYPE_NOOP); 1283 1284 trb.dwTrb3 = htole32(temp); 1285 1286 return (xhci_do_command(sc, &trb, 100 /* ms */)); 1287 } 1288 #endif 1289 1290 static usb_error_t 1291 xhci_cmd_enable_slot(struct xhci_softc *sc, uint8_t *pslot) 1292 { 1293 struct xhci_trb trb; 1294 uint32_t temp; 1295 usb_error_t err; 1296 1297 DPRINTF("\n"); 1298 1299 trb.qwTrb0 = 0; 1300 trb.dwTrb2 = 0; 1301 trb.dwTrb3 = htole32(XHCI_TRB_3_TYPE_SET(XHCI_TRB_TYPE_ENABLE_SLOT)); 1302 1303 err = xhci_do_command(sc, &trb, 100 /* ms */); 1304 if (err) 1305 goto done; 1306 1307 temp = le32toh(trb.dwTrb3); 1308 1309 *pslot = XHCI_TRB_3_SLOT_GET(temp); 1310 1311 done: 1312 return (err); 1313 } 1314 1315 static usb_error_t 1316 xhci_cmd_disable_slot(struct xhci_softc *sc, uint8_t slot_id) 1317 { 1318 struct xhci_trb trb; 1319 uint32_t temp; 1320 1321 DPRINTF("\n"); 1322 1323 trb.qwTrb0 = 0; 1324 trb.dwTrb2 = 0; 1325 temp = XHCI_TRB_3_TYPE_SET(XHCI_TRB_TYPE_DISABLE_SLOT) | 1326 XHCI_TRB_3_SLOT_SET(slot_id); 1327 1328 trb.dwTrb3 = htole32(temp); 1329 1330 return (xhci_do_command(sc, &trb, 100 /* ms */)); 1331 } 1332 1333 static usb_error_t 1334 xhci_cmd_set_address(struct xhci_softc *sc, uint64_t input_ctx, 1335 uint8_t bsr, uint8_t slot_id) 1336 { 1337 struct xhci_trb trb; 1338 uint32_t temp; 1339 1340 DPRINTF("\n"); 1341 1342 trb.qwTrb0 = htole64(input_ctx); 1343 trb.dwTrb2 = 0; 1344 temp = XHCI_TRB_3_TYPE_SET(XHCI_TRB_TYPE_ADDRESS_DEVICE) | 1345 XHCI_TRB_3_SLOT_SET(slot_id); 1346 1347 if (bsr) 1348 temp |= XHCI_TRB_3_BSR_BIT; 1349 1350 trb.dwTrb3 = htole32(temp); 1351 1352 return (xhci_do_command(sc, &trb, 500 /* ms */)); 1353 } 1354 1355 static usb_error_t 1356 xhci_set_address(struct usb_device *udev, struct mtx *mtx, uint16_t address) 1357 { 1358 struct usb_page_search buf_inp; 1359 struct usb_page_search buf_dev; 1360 struct xhci_softc *sc = XHCI_BUS2SC(udev->bus); 1361 struct xhci_hw_dev *hdev; 1362 struct xhci_dev_ctx *pdev; 1363 struct xhci_endpoint_ext *pepext; 1364 uint32_t temp; 1365 uint16_t mps; 1366 usb_error_t err; 1367 uint8_t index; 1368 1369 /* the root HUB case is not handled here */ 1370 if (udev->parent_hub == NULL) 1371 return (USB_ERR_INVAL); 1372 1373 index = udev->controller_slot_id; 1374 1375 hdev = &sc->sc_hw.devs[index]; 1376 1377 if (mtx != NULL) 1378 mtx_unlock(mtx); 1379 1380 XHCI_CMD_LOCK(sc); 1381 1382 switch (hdev->state) { 1383 case XHCI_ST_DEFAULT: 1384 case XHCI_ST_ENABLED: 1385 1386 hdev->state = XHCI_ST_ENABLED; 1387 1388 /* set configure mask to slot and EP0 */ 1389 xhci_configure_mask(udev, 3, 0); 1390 1391 /* configure input slot context structure */ 1392 err = xhci_configure_device(udev); 1393 1394 if (err != 0) { 1395 DPRINTF("Could not configure device\n"); 1396 break; 1397 } 1398 1399 /* configure input endpoint context structure */ 1400 switch (udev->speed) { 1401 case USB_SPEED_LOW: 1402 case USB_SPEED_FULL: 1403 mps = 8; 1404 break; 1405 case USB_SPEED_HIGH: 1406 mps = 64; 1407 break; 1408 default: 1409 mps = 512; 1410 break; 1411 } 1412 1413 pepext = xhci_get_endpoint_ext(udev, 1414 &udev->ctrl_ep_desc); 1415 1416 /* ensure the control endpoint is setup again */ 1417 USB_BUS_LOCK(udev->bus); 1418 pepext->trb_halted = 1; 1419 pepext->trb_running = 0; 1420 USB_BUS_UNLOCK(udev->bus); 1421 1422 err = xhci_configure_endpoint(udev, 1423 &udev->ctrl_ep_desc, pepext, 1424 0, 1, 1, 0, mps, mps, USB_EP_MODE_DEFAULT); 1425 1426 if (err != 0) { 1427 DPRINTF("Could not configure default endpoint\n"); 1428 break; 1429 } 1430 1431 /* execute set address command */ 1432 usbd_get_page(&hdev->input_pc, 0, &buf_inp); 1433 1434 err = xhci_cmd_set_address(sc, buf_inp.physaddr, 1435 (address == 0), index); 1436 1437 if (err != 0) { 1438 temp = le32toh(sc->sc_cmd_result[0]); 1439 if (address == 0 && sc->sc_port_route != NULL && 1440 XHCI_TRB_2_ERROR_GET(temp) == 1441 XHCI_TRB_ERROR_PARAMETER) { 1442 /* LynxPoint XHCI - ports are not switchable */ 1443 /* Un-route all ports from the XHCI */ 1444 sc->sc_port_route(sc->sc_bus.parent, 0, ~0); 1445 } 1446 DPRINTF("Could not set address " 1447 "for slot %u.\n", index); 1448 if (address != 0) 1449 break; 1450 } 1451 1452 /* update device address to new value */ 1453 1454 usbd_get_page(&hdev->device_pc, 0, &buf_dev); 1455 pdev = buf_dev.buffer; 1456 usb_pc_cpu_invalidate(&hdev->device_pc); 1457 1458 temp = xhci_ctx_get_le32(sc, &pdev->ctx_slot.dwSctx3); 1459 udev->address = XHCI_SCTX_3_DEV_ADDR_GET(temp); 1460 1461 /* update device state to new value */ 1462 1463 if (address != 0) 1464 hdev->state = XHCI_ST_ADDRESSED; 1465 else 1466 hdev->state = XHCI_ST_DEFAULT; 1467 break; 1468 1469 default: 1470 DPRINTF("Wrong state for set address.\n"); 1471 err = USB_ERR_IOERROR; 1472 break; 1473 } 1474 XHCI_CMD_UNLOCK(sc); 1475 1476 if (mtx != NULL) 1477 mtx_lock(mtx); 1478 1479 return (err); 1480 } 1481 1482 static usb_error_t 1483 xhci_cmd_configure_ep(struct xhci_softc *sc, uint64_t input_ctx, 1484 uint8_t deconfigure, uint8_t slot_id) 1485 { 1486 struct xhci_trb trb; 1487 uint32_t temp; 1488 1489 DPRINTF("\n"); 1490 1491 trb.qwTrb0 = htole64(input_ctx); 1492 trb.dwTrb2 = 0; 1493 temp = XHCI_TRB_3_TYPE_SET(XHCI_TRB_TYPE_CONFIGURE_EP) | 1494 XHCI_TRB_3_SLOT_SET(slot_id); 1495 1496 if (deconfigure) 1497 temp |= XHCI_TRB_3_DCEP_BIT; 1498 1499 trb.dwTrb3 = htole32(temp); 1500 1501 return (xhci_do_command(sc, &trb, 100 /* ms */)); 1502 } 1503 1504 static usb_error_t 1505 xhci_cmd_evaluate_ctx(struct xhci_softc *sc, uint64_t input_ctx, 1506 uint8_t slot_id) 1507 { 1508 struct xhci_trb trb; 1509 uint32_t temp; 1510 1511 DPRINTF("\n"); 1512 1513 trb.qwTrb0 = htole64(input_ctx); 1514 trb.dwTrb2 = 0; 1515 temp = XHCI_TRB_3_TYPE_SET(XHCI_TRB_TYPE_EVALUATE_CTX) | 1516 XHCI_TRB_3_SLOT_SET(slot_id); 1517 trb.dwTrb3 = htole32(temp); 1518 1519 return (xhci_do_command(sc, &trb, 100 /* ms */)); 1520 } 1521 1522 static usb_error_t 1523 xhci_cmd_reset_ep(struct xhci_softc *sc, uint8_t preserve, 1524 uint8_t ep_id, uint8_t slot_id) 1525 { 1526 struct xhci_trb trb; 1527 uint32_t temp; 1528 1529 DPRINTF("\n"); 1530 1531 trb.qwTrb0 = 0; 1532 trb.dwTrb2 = 0; 1533 temp = XHCI_TRB_3_TYPE_SET(XHCI_TRB_TYPE_RESET_EP) | 1534 XHCI_TRB_3_SLOT_SET(slot_id) | 1535 XHCI_TRB_3_EP_SET(ep_id); 1536 1537 if (preserve) 1538 temp |= XHCI_TRB_3_PRSV_BIT; 1539 1540 trb.dwTrb3 = htole32(temp); 1541 1542 return (xhci_do_command(sc, &trb, 100 /* ms */)); 1543 } 1544 1545 static usb_error_t 1546 xhci_cmd_set_tr_dequeue_ptr(struct xhci_softc *sc, uint64_t dequeue_ptr, 1547 uint16_t stream_id, uint8_t ep_id, uint8_t slot_id) 1548 { 1549 struct xhci_trb trb; 1550 uint32_t temp; 1551 1552 DPRINTF("\n"); 1553 1554 trb.qwTrb0 = htole64(dequeue_ptr); 1555 1556 temp = XHCI_TRB_2_STREAM_SET(stream_id); 1557 trb.dwTrb2 = htole32(temp); 1558 1559 temp = XHCI_TRB_3_TYPE_SET(XHCI_TRB_TYPE_SET_TR_DEQUEUE) | 1560 XHCI_TRB_3_SLOT_SET(slot_id) | 1561 XHCI_TRB_3_EP_SET(ep_id); 1562 trb.dwTrb3 = htole32(temp); 1563 1564 return (xhci_do_command(sc, &trb, 100 /* ms */)); 1565 } 1566 1567 static usb_error_t 1568 xhci_cmd_stop_ep(struct xhci_softc *sc, uint8_t suspend, 1569 uint8_t ep_id, uint8_t slot_id) 1570 { 1571 struct xhci_trb trb; 1572 uint32_t temp; 1573 1574 DPRINTF("\n"); 1575 1576 trb.qwTrb0 = 0; 1577 trb.dwTrb2 = 0; 1578 temp = XHCI_TRB_3_TYPE_SET(XHCI_TRB_TYPE_STOP_EP) | 1579 XHCI_TRB_3_SLOT_SET(slot_id) | 1580 XHCI_TRB_3_EP_SET(ep_id); 1581 1582 if (suspend) 1583 temp |= XHCI_TRB_3_SUSP_EP_BIT; 1584 1585 trb.dwTrb3 = htole32(temp); 1586 1587 return (xhci_do_command(sc, &trb, 100 /* ms */)); 1588 } 1589 1590 static usb_error_t 1591 xhci_cmd_reset_dev(struct xhci_softc *sc, uint8_t slot_id) 1592 { 1593 struct xhci_trb trb; 1594 uint32_t temp; 1595 1596 DPRINTF("\n"); 1597 1598 trb.qwTrb0 = 0; 1599 trb.dwTrb2 = 0; 1600 temp = XHCI_TRB_3_TYPE_SET(XHCI_TRB_TYPE_RESET_DEVICE) | 1601 XHCI_TRB_3_SLOT_SET(slot_id); 1602 1603 trb.dwTrb3 = htole32(temp); 1604 1605 return (xhci_do_command(sc, &trb, 100 /* ms */)); 1606 } 1607 1608 /*------------------------------------------------------------------------* 1609 * xhci_interrupt - XHCI interrupt handler 1610 *------------------------------------------------------------------------*/ 1611 void 1612 xhci_interrupt(struct xhci_softc *sc) 1613 { 1614 uint32_t status; 1615 uint32_t temp; 1616 1617 USB_BUS_LOCK(&sc->sc_bus); 1618 1619 status = XREAD4(sc, oper, XHCI_USBSTS); 1620 1621 /* acknowledge interrupts, if any */ 1622 if (status != 0) { 1623 XWRITE4(sc, oper, XHCI_USBSTS, status); 1624 DPRINTFN(16, "real interrupt (status=0x%08x)\n", status); 1625 } 1626 1627 temp = XREAD4(sc, runt, XHCI_IMAN(0)); 1628 1629 /* force clearing of pending interrupts */ 1630 if (temp & XHCI_IMAN_INTR_PEND) 1631 XWRITE4(sc, runt, XHCI_IMAN(0), temp); 1632 1633 /* check for event(s) */ 1634 xhci_interrupt_poll(sc); 1635 1636 if (status & (XHCI_STS_PCD | XHCI_STS_HCH | 1637 XHCI_STS_HSE | XHCI_STS_HCE)) { 1638 1639 if (status & XHCI_STS_PCD) { 1640 xhci_root_intr(sc); 1641 } 1642 1643 if (status & XHCI_STS_HCH) { 1644 printf("%s: host controller halted\n", 1645 __FUNCTION__); 1646 } 1647 1648 if (status & XHCI_STS_HSE) { 1649 printf("%s: host system error\n", 1650 __FUNCTION__); 1651 } 1652 1653 if (status & XHCI_STS_HCE) { 1654 printf("%s: host controller error\n", 1655 __FUNCTION__); 1656 } 1657 } 1658 USB_BUS_UNLOCK(&sc->sc_bus); 1659 } 1660 1661 /*------------------------------------------------------------------------* 1662 * xhci_timeout - XHCI timeout handler 1663 *------------------------------------------------------------------------*/ 1664 static void 1665 xhci_timeout(void *arg) 1666 { 1667 struct usb_xfer *xfer = arg; 1668 1669 DPRINTF("xfer=%p\n", xfer); 1670 1671 USB_BUS_LOCK_ASSERT(xfer->xroot->bus, MA_OWNED); 1672 1673 /* transfer is transferred */ 1674 xhci_device_done(xfer, USB_ERR_TIMEOUT); 1675 } 1676 1677 static void 1678 xhci_do_poll(struct usb_bus *bus) 1679 { 1680 struct xhci_softc *sc = XHCI_BUS2SC(bus); 1681 1682 USB_BUS_LOCK(&sc->sc_bus); 1683 xhci_interrupt_poll(sc); 1684 USB_BUS_UNLOCK(&sc->sc_bus); 1685 } 1686 1687 static void 1688 xhci_setup_generic_chain_sub(struct xhci_std_temp *temp) 1689 { 1690 struct usb_page_search buf_res; 1691 struct xhci_td *td; 1692 struct xhci_td *td_next; 1693 struct xhci_td *td_alt_next; 1694 struct xhci_td *td_first; 1695 uint32_t buf_offset; 1696 uint32_t average; 1697 uint32_t len_old; 1698 uint32_t npkt_off; 1699 uint32_t dword; 1700 uint8_t shortpkt_old; 1701 uint8_t precompute; 1702 uint8_t x; 1703 1704 td_alt_next = NULL; 1705 buf_offset = 0; 1706 shortpkt_old = temp->shortpkt; 1707 len_old = temp->len; 1708 npkt_off = 0; 1709 precompute = 1; 1710 1711 restart: 1712 1713 td = temp->td; 1714 td_next = td_first = temp->td_next; 1715 1716 while (1) { 1717 1718 if (temp->len == 0) { 1719 1720 if (temp->shortpkt) 1721 break; 1722 1723 /* send a Zero Length Packet, ZLP, last */ 1724 1725 temp->shortpkt = 1; 1726 average = 0; 1727 1728 } else { 1729 1730 average = temp->average; 1731 1732 if (temp->len < average) { 1733 if (temp->len % temp->max_packet_size) { 1734 temp->shortpkt = 1; 1735 } 1736 average = temp->len; 1737 } 1738 } 1739 1740 if (td_next == NULL) 1741 panic("%s: out of XHCI transfer descriptors!", __FUNCTION__); 1742 1743 /* get next TD */ 1744 1745 td = td_next; 1746 td_next = td->obj_next; 1747 1748 /* check if we are pre-computing */ 1749 1750 if (precompute) { 1751 1752 /* update remaining length */ 1753 1754 temp->len -= average; 1755 1756 continue; 1757 } 1758 /* fill out current TD */ 1759 1760 td->len = average; 1761 td->remainder = 0; 1762 td->status = 0; 1763 1764 /* update remaining length */ 1765 1766 temp->len -= average; 1767 1768 /* reset TRB index */ 1769 1770 x = 0; 1771 1772 if (temp->trb_type == XHCI_TRB_TYPE_SETUP_STAGE) { 1773 /* immediate data */ 1774 1775 if (average > 8) 1776 average = 8; 1777 1778 td->td_trb[0].qwTrb0 = 0; 1779 1780 usbd_copy_out(temp->pc, temp->offset + buf_offset, 1781 (uint8_t *)(uintptr_t)&td->td_trb[0].qwTrb0, 1782 average); 1783 1784 dword = XHCI_TRB_2_BYTES_SET(8) | 1785 XHCI_TRB_2_TDSZ_SET(0) | 1786 XHCI_TRB_2_IRQ_SET(0); 1787 1788 td->td_trb[0].dwTrb2 = htole32(dword); 1789 1790 dword = XHCI_TRB_3_TYPE_SET(XHCI_TRB_TYPE_SETUP_STAGE) | 1791 XHCI_TRB_3_IDT_BIT | XHCI_TRB_3_CYCLE_BIT; 1792 1793 /* check wLength */ 1794 if (td->td_trb[0].qwTrb0 & 1795 htole64(XHCI_TRB_0_WLENGTH_MASK)) { 1796 if (td->td_trb[0].qwTrb0 & 1797 htole64(XHCI_TRB_0_DIR_IN_MASK)) 1798 dword |= XHCI_TRB_3_TRT_IN; 1799 else 1800 dword |= XHCI_TRB_3_TRT_OUT; 1801 } 1802 1803 td->td_trb[0].dwTrb3 = htole32(dword); 1804 #ifdef USB_DEBUG 1805 xhci_dump_trb(&td->td_trb[x]); 1806 #endif 1807 x++; 1808 1809 } else do { 1810 1811 uint32_t npkt; 1812 1813 /* fill out buffer pointers */ 1814 1815 if (average == 0) { 1816 memset(&buf_res, 0, sizeof(buf_res)); 1817 } else { 1818 usbd_get_page(temp->pc, temp->offset + 1819 buf_offset, &buf_res); 1820 1821 /* get length to end of page */ 1822 if (buf_res.length > average) 1823 buf_res.length = average; 1824 1825 /* check for maximum length */ 1826 if (buf_res.length > XHCI_TD_PAGE_SIZE) 1827 buf_res.length = XHCI_TD_PAGE_SIZE; 1828 1829 npkt_off += buf_res.length; 1830 } 1831 1832 /* set up npkt */ 1833 npkt = (len_old - npkt_off + temp->max_packet_size - 1) / 1834 temp->max_packet_size; 1835 1836 if (npkt == 0) 1837 npkt = 1; 1838 else if (npkt > 31) 1839 npkt = 31; 1840 1841 /* fill out TRB's */ 1842 td->td_trb[x].qwTrb0 = 1843 htole64((uint64_t)buf_res.physaddr); 1844 1845 dword = 1846 XHCI_TRB_2_BYTES_SET(buf_res.length) | 1847 XHCI_TRB_2_TDSZ_SET(npkt) | 1848 XHCI_TRB_2_IRQ_SET(0); 1849 1850 td->td_trb[x].dwTrb2 = htole32(dword); 1851 1852 switch (temp->trb_type) { 1853 case XHCI_TRB_TYPE_ISOCH: 1854 dword = XHCI_TRB_3_CHAIN_BIT | XHCI_TRB_3_CYCLE_BIT | 1855 XHCI_TRB_3_TBC_SET(temp->tbc) | 1856 XHCI_TRB_3_TLBPC_SET(temp->tlbpc); 1857 if (td != td_first) { 1858 dword |= XHCI_TRB_3_TYPE_SET(XHCI_TRB_TYPE_NORMAL); 1859 } else if (temp->do_isoc_sync != 0) { 1860 temp->do_isoc_sync = 0; 1861 /* wait until "isoc_frame" */ 1862 dword |= XHCI_TRB_3_TYPE_SET(XHCI_TRB_TYPE_ISOCH) | 1863 XHCI_TRB_3_FRID_SET(temp->isoc_frame / 8); 1864 } else { 1865 /* start data transfer at next interval */ 1866 dword |= XHCI_TRB_3_TYPE_SET(XHCI_TRB_TYPE_ISOCH) | 1867 XHCI_TRB_3_ISO_SIA_BIT; 1868 } 1869 if (temp->direction == UE_DIR_IN) 1870 dword |= XHCI_TRB_3_ISP_BIT; 1871 break; 1872 case XHCI_TRB_TYPE_DATA_STAGE: 1873 dword = XHCI_TRB_3_CHAIN_BIT | XHCI_TRB_3_CYCLE_BIT | 1874 XHCI_TRB_3_TYPE_SET(XHCI_TRB_TYPE_DATA_STAGE); 1875 if (temp->direction == UE_DIR_IN) 1876 dword |= XHCI_TRB_3_DIR_IN | XHCI_TRB_3_ISP_BIT; 1877 /* 1878 * Section 3.2.9 in the XHCI 1879 * specification about control 1880 * transfers says that we should use a 1881 * normal-TRB if there are more TRBs 1882 * extending the data-stage 1883 * TRB. Update the "trb_type". 1884 */ 1885 temp->trb_type = XHCI_TRB_TYPE_NORMAL; 1886 break; 1887 case XHCI_TRB_TYPE_STATUS_STAGE: 1888 dword = XHCI_TRB_3_CHAIN_BIT | XHCI_TRB_3_CYCLE_BIT | 1889 XHCI_TRB_3_TYPE_SET(XHCI_TRB_TYPE_STATUS_STAGE); 1890 if (temp->direction == UE_DIR_IN) 1891 dword |= XHCI_TRB_3_DIR_IN; 1892 break; 1893 default: /* XHCI_TRB_TYPE_NORMAL */ 1894 dword = XHCI_TRB_3_CHAIN_BIT | XHCI_TRB_3_CYCLE_BIT | 1895 XHCI_TRB_3_TYPE_SET(XHCI_TRB_TYPE_NORMAL); 1896 if (temp->direction == UE_DIR_IN) 1897 dword |= XHCI_TRB_3_ISP_BIT; 1898 break; 1899 } 1900 td->td_trb[x].dwTrb3 = htole32(dword); 1901 1902 average -= buf_res.length; 1903 buf_offset += buf_res.length; 1904 #ifdef USB_DEBUG 1905 xhci_dump_trb(&td->td_trb[x]); 1906 #endif 1907 x++; 1908 1909 } while (average != 0); 1910 1911 td->td_trb[x-1].dwTrb3 |= htole32(XHCI_TRB_3_IOC_BIT); 1912 1913 /* store number of data TRB's */ 1914 1915 td->ntrb = x; 1916 1917 DPRINTF("NTRB=%u\n", x); 1918 1919 /* fill out link TRB */ 1920 1921 if (td_next != NULL) { 1922 /* link the current TD with the next one */ 1923 td->td_trb[x].qwTrb0 = htole64((uint64_t)td_next->td_self); 1924 DPRINTF("LINK=0x%08llx\n", (long long)td_next->td_self); 1925 } else { 1926 /* this field will get updated later */ 1927 DPRINTF("NOLINK\n"); 1928 } 1929 1930 dword = XHCI_TRB_2_IRQ_SET(0); 1931 1932 td->td_trb[x].dwTrb2 = htole32(dword); 1933 1934 dword = XHCI_TRB_3_TYPE_SET(XHCI_TRB_TYPE_LINK) | 1935 XHCI_TRB_3_CYCLE_BIT | XHCI_TRB_3_IOC_BIT | 1936 /* 1937 * CHAIN-BIT: Ensure that a multi-TRB IN-endpoint 1938 * frame only receives a single short packet event 1939 * by setting the CHAIN bit in the LINK field. In 1940 * addition some XHCI controllers have problems 1941 * sending a ZLP unless the CHAIN-BIT is set in 1942 * the LINK TRB. 1943 */ 1944 XHCI_TRB_3_CHAIN_BIT; 1945 1946 td->td_trb[x].dwTrb3 = htole32(dword); 1947 1948 td->alt_next = td_alt_next; 1949 #ifdef USB_DEBUG 1950 xhci_dump_trb(&td->td_trb[x]); 1951 #endif 1952 usb_pc_cpu_flush(td->page_cache); 1953 } 1954 1955 if (precompute) { 1956 precompute = 0; 1957 1958 /* set up alt next pointer, if any */ 1959 if (temp->last_frame) { 1960 td_alt_next = NULL; 1961 } else { 1962 /* we use this field internally */ 1963 td_alt_next = td_next; 1964 } 1965 1966 /* restore */ 1967 temp->shortpkt = shortpkt_old; 1968 temp->len = len_old; 1969 goto restart; 1970 } 1971 1972 /* 1973 * Remove cycle bit from the first TRB if we are 1974 * stepping them: 1975 */ 1976 if (temp->step_td != 0) { 1977 td_first->td_trb[0].dwTrb3 &= ~htole32(XHCI_TRB_3_CYCLE_BIT); 1978 usb_pc_cpu_flush(td_first->page_cache); 1979 } 1980 1981 /* clear TD SIZE to zero, hence this is the last TRB */ 1982 /* remove chain bit because this is the last data TRB in the chain */ 1983 td->td_trb[td->ntrb - 1].dwTrb2 &= ~htole32(XHCI_TRB_2_TDSZ_SET(15)); 1984 td->td_trb[td->ntrb - 1].dwTrb3 &= ~htole32(XHCI_TRB_3_CHAIN_BIT); 1985 /* remove CHAIN-BIT from last LINK TRB */ 1986 td->td_trb[td->ntrb].dwTrb3 &= ~htole32(XHCI_TRB_3_CHAIN_BIT); 1987 1988 usb_pc_cpu_flush(td->page_cache); 1989 1990 temp->td = td; 1991 temp->td_next = td_next; 1992 } 1993 1994 static void 1995 xhci_setup_generic_chain(struct usb_xfer *xfer) 1996 { 1997 struct xhci_std_temp temp; 1998 struct xhci_td *td; 1999 uint32_t x; 2000 uint32_t y; 2001 uint8_t mult; 2002 2003 temp.do_isoc_sync = 0; 2004 temp.step_td = 0; 2005 temp.tbc = 0; 2006 temp.tlbpc = 0; 2007 temp.average = xfer->max_hc_frame_size; 2008 temp.max_packet_size = xfer->max_packet_size; 2009 temp.sc = XHCI_BUS2SC(xfer->xroot->bus); 2010 temp.pc = NULL; 2011 temp.last_frame = 0; 2012 temp.offset = 0; 2013 temp.multishort = xfer->flags_int.isochronous_xfr || 2014 xfer->flags_int.control_xfr || 2015 xfer->flags_int.short_frames_ok; 2016 2017 /* toggle the DMA set we are using */ 2018 xfer->flags_int.curr_dma_set ^= 1; 2019 2020 /* get next DMA set */ 2021 td = xfer->td_start[xfer->flags_int.curr_dma_set]; 2022 2023 temp.td = NULL; 2024 temp.td_next = td; 2025 2026 xfer->td_transfer_first = td; 2027 xfer->td_transfer_cache = td; 2028 2029 if (xfer->flags_int.isochronous_xfr) { 2030 uint8_t shift; 2031 2032 /* compute multiplier for ISOCHRONOUS transfers */ 2033 mult = xfer->endpoint->ecomp ? 2034 UE_GET_SS_ISO_MULT(xfer->endpoint->ecomp->bmAttributes) 2035 : 0; 2036 /* check for USB 2.0 multiplier */ 2037 if (mult == 0) { 2038 mult = (xfer->endpoint->edesc-> 2039 wMaxPacketSize[1] >> 3) & 3; 2040 } 2041 /* range check */ 2042 if (mult > 2) 2043 mult = 3; 2044 else 2045 mult++; 2046 2047 x = XREAD4(temp.sc, runt, XHCI_MFINDEX); 2048 2049 DPRINTF("MFINDEX=0x%08x\n", x); 2050 2051 switch (usbd_get_speed(xfer->xroot->udev)) { 2052 case USB_SPEED_FULL: 2053 shift = 3; 2054 temp.isoc_delta = 8; /* 1ms */ 2055 x += temp.isoc_delta - 1; 2056 x &= ~(temp.isoc_delta - 1); 2057 break; 2058 default: 2059 shift = usbd_xfer_get_fps_shift(xfer); 2060 temp.isoc_delta = 1U << shift; 2061 x += temp.isoc_delta - 1; 2062 x &= ~(temp.isoc_delta - 1); 2063 /* simple frame load balancing */ 2064 x += xfer->endpoint->usb_uframe; 2065 break; 2066 } 2067 2068 y = XHCI_MFINDEX_GET(x - xfer->endpoint->isoc_next); 2069 2070 if ((xfer->endpoint->is_synced == 0) || 2071 (y < (xfer->nframes << shift)) || 2072 (XHCI_MFINDEX_GET(-y) >= (128 * 8))) { 2073 /* 2074 * If there is data underflow or the pipe 2075 * queue is empty we schedule the transfer a 2076 * few frames ahead of the current frame 2077 * position. Else two isochronous transfers 2078 * might overlap. 2079 */ 2080 xfer->endpoint->isoc_next = XHCI_MFINDEX_GET(x + (3 * 8)); 2081 xfer->endpoint->is_synced = 1; 2082 temp.do_isoc_sync = 1; 2083 2084 DPRINTFN(3, "start next=%d\n", xfer->endpoint->isoc_next); 2085 } 2086 2087 /* compute isochronous completion time */ 2088 2089 y = XHCI_MFINDEX_GET(xfer->endpoint->isoc_next - (x & ~7)); 2090 2091 xfer->isoc_time_complete = 2092 usb_isoc_time_expand(&temp.sc->sc_bus, x / 8) + 2093 (y / 8) + (((xfer->nframes << shift) + 7) / 8); 2094 2095 x = 0; 2096 temp.isoc_frame = xfer->endpoint->isoc_next; 2097 temp.trb_type = XHCI_TRB_TYPE_ISOCH; 2098 2099 xfer->endpoint->isoc_next += xfer->nframes << shift; 2100 2101 } else if (xfer->flags_int.control_xfr) { 2102 2103 /* check if we should prepend a setup message */ 2104 2105 if (xfer->flags_int.control_hdr) { 2106 2107 temp.len = xfer->frlengths[0]; 2108 temp.pc = xfer->frbuffers + 0; 2109 temp.shortpkt = temp.len ? 1 : 0; 2110 temp.trb_type = XHCI_TRB_TYPE_SETUP_STAGE; 2111 temp.direction = 0; 2112 2113 /* check for last frame */ 2114 if (xfer->nframes == 1) { 2115 /* no STATUS stage yet, SETUP is last */ 2116 if (xfer->flags_int.control_act) 2117 temp.last_frame = 1; 2118 } 2119 2120 xhci_setup_generic_chain_sub(&temp); 2121 } 2122 x = 1; 2123 mult = 1; 2124 temp.isoc_delta = 0; 2125 temp.isoc_frame = 0; 2126 temp.trb_type = xfer->flags_int.control_did_data ? 2127 XHCI_TRB_TYPE_NORMAL : XHCI_TRB_TYPE_DATA_STAGE; 2128 } else { 2129 x = 0; 2130 mult = 1; 2131 temp.isoc_delta = 0; 2132 temp.isoc_frame = 0; 2133 temp.trb_type = XHCI_TRB_TYPE_NORMAL; 2134 } 2135 2136 if (x != xfer->nframes) { 2137 /* set up page_cache pointer */ 2138 temp.pc = xfer->frbuffers + x; 2139 /* set endpoint direction */ 2140 temp.direction = UE_GET_DIR(xfer->endpointno); 2141 } 2142 2143 while (x != xfer->nframes) { 2144 2145 /* DATA0 / DATA1 message */ 2146 2147 temp.len = xfer->frlengths[x]; 2148 temp.step_td = ((xfer->endpointno & UE_DIR_IN) && 2149 x != 0 && temp.multishort == 0); 2150 2151 x++; 2152 2153 if (x == xfer->nframes) { 2154 if (xfer->flags_int.control_xfr) { 2155 /* no STATUS stage yet, DATA is last */ 2156 if (xfer->flags_int.control_act) 2157 temp.last_frame = 1; 2158 } else { 2159 temp.last_frame = 1; 2160 } 2161 } 2162 if (temp.len == 0) { 2163 2164 /* make sure that we send an USB packet */ 2165 2166 temp.shortpkt = 0; 2167 2168 temp.tbc = 0; 2169 temp.tlbpc = mult - 1; 2170 2171 } else if (xfer->flags_int.isochronous_xfr) { 2172 2173 uint8_t tdpc; 2174 2175 /* 2176 * Isochronous transfers don't have short 2177 * packet termination: 2178 */ 2179 2180 temp.shortpkt = 1; 2181 2182 /* isochronous transfers have a transfer limit */ 2183 2184 if (temp.len > xfer->max_frame_size) 2185 temp.len = xfer->max_frame_size; 2186 2187 /* compute TD packet count */ 2188 tdpc = (temp.len + xfer->max_packet_size - 1) / 2189 xfer->max_packet_size; 2190 2191 temp.tbc = ((tdpc + mult - 1) / mult) - 1; 2192 temp.tlbpc = (tdpc % mult); 2193 2194 if (temp.tlbpc == 0) 2195 temp.tlbpc = mult - 1; 2196 else 2197 temp.tlbpc--; 2198 } else { 2199 2200 /* regular data transfer */ 2201 2202 temp.shortpkt = xfer->flags.force_short_xfer ? 0 : 1; 2203 } 2204 2205 xhci_setup_generic_chain_sub(&temp); 2206 2207 if (xfer->flags_int.isochronous_xfr) { 2208 temp.offset += xfer->frlengths[x - 1]; 2209 temp.isoc_frame += temp.isoc_delta; 2210 } else { 2211 /* get next Page Cache pointer */ 2212 temp.pc = xfer->frbuffers + x; 2213 } 2214 } 2215 2216 /* check if we should append a status stage */ 2217 2218 if (xfer->flags_int.control_xfr && 2219 !xfer->flags_int.control_act) { 2220 2221 /* 2222 * Send a DATA1 message and invert the current 2223 * endpoint direction. 2224 */ 2225 temp.step_td = (xfer->nframes != 0); 2226 temp.direction = UE_GET_DIR(xfer->endpointno) ^ UE_DIR_IN; 2227 temp.len = 0; 2228 temp.pc = NULL; 2229 temp.shortpkt = 0; 2230 temp.last_frame = 1; 2231 temp.trb_type = XHCI_TRB_TYPE_STATUS_STAGE; 2232 2233 xhci_setup_generic_chain_sub(&temp); 2234 } 2235 2236 td = temp.td; 2237 2238 /* must have at least one frame! */ 2239 2240 xfer->td_transfer_last = td; 2241 2242 DPRINTF("first=%p last=%p\n", xfer->td_transfer_first, td); 2243 } 2244 2245 static void 2246 xhci_set_slot_pointer(struct xhci_softc *sc, uint8_t index, uint64_t dev_addr) 2247 { 2248 struct usb_page_search buf_res; 2249 struct xhci_dev_ctx_addr *pdctxa; 2250 2251 usbd_get_page(&sc->sc_hw.ctx_pc, 0, &buf_res); 2252 2253 pdctxa = buf_res.buffer; 2254 2255 DPRINTF("addr[%u]=0x%016llx\n", index, (long long)dev_addr); 2256 2257 pdctxa->qwBaaDevCtxAddr[index] = htole64(dev_addr); 2258 2259 usb_pc_cpu_flush(&sc->sc_hw.ctx_pc); 2260 } 2261 2262 static usb_error_t 2263 xhci_configure_mask(struct usb_device *udev, uint32_t mask, uint8_t drop) 2264 { 2265 struct xhci_softc *sc = XHCI_BUS2SC(udev->bus); 2266 struct usb_page_search buf_inp; 2267 struct xhci_input_dev_ctx *pinp; 2268 uint32_t temp; 2269 uint8_t index; 2270 uint8_t x; 2271 2272 index = udev->controller_slot_id; 2273 2274 usbd_get_page(&sc->sc_hw.devs[index].input_pc, 0, &buf_inp); 2275 2276 pinp = buf_inp.buffer; 2277 2278 if (drop) { 2279 mask &= XHCI_INCTX_NON_CTRL_MASK; 2280 xhci_ctx_set_le32(sc, &pinp->ctx_input.dwInCtx0, mask); 2281 xhci_ctx_set_le32(sc, &pinp->ctx_input.dwInCtx1, 0); 2282 } else { 2283 /* 2284 * Some hardware requires that we drop the endpoint 2285 * context before adding it again: 2286 */ 2287 xhci_ctx_set_le32(sc, &pinp->ctx_input.dwInCtx0, 2288 mask & XHCI_INCTX_NON_CTRL_MASK); 2289 2290 /* Add new endpoint context */ 2291 xhci_ctx_set_le32(sc, &pinp->ctx_input.dwInCtx1, mask); 2292 2293 /* find most significant set bit */ 2294 for (x = 31; x != 1; x--) { 2295 if (mask & (1 << x)) 2296 break; 2297 } 2298 2299 /* adjust */ 2300 x--; 2301 2302 /* figure out the maximum number of contexts */ 2303 if (x > sc->sc_hw.devs[index].context_num) 2304 sc->sc_hw.devs[index].context_num = x; 2305 else 2306 x = sc->sc_hw.devs[index].context_num; 2307 2308 /* update number of contexts */ 2309 temp = xhci_ctx_get_le32(sc, &pinp->ctx_slot.dwSctx0); 2310 temp &= ~XHCI_SCTX_0_CTX_NUM_SET(31); 2311 temp |= XHCI_SCTX_0_CTX_NUM_SET(x + 1); 2312 xhci_ctx_set_le32(sc, &pinp->ctx_slot.dwSctx0, temp); 2313 } 2314 usb_pc_cpu_flush(&sc->sc_hw.devs[index].input_pc); 2315 return (0); 2316 } 2317 2318 static usb_error_t 2319 xhci_configure_endpoint(struct usb_device *udev, 2320 struct usb_endpoint_descriptor *edesc, struct xhci_endpoint_ext *pepext, 2321 uint16_t interval, uint8_t max_packet_count, 2322 uint8_t mult, uint8_t fps_shift, uint16_t max_packet_size, 2323 uint16_t max_frame_size, uint8_t ep_mode) 2324 { 2325 struct usb_page_search buf_inp; 2326 struct xhci_softc *sc = XHCI_BUS2SC(udev->bus); 2327 struct xhci_input_dev_ctx *pinp; 2328 uint64_t ring_addr = pepext->physaddr; 2329 uint32_t temp; 2330 uint8_t index; 2331 uint8_t epno; 2332 uint8_t type; 2333 2334 index = udev->controller_slot_id; 2335 2336 usbd_get_page(&sc->sc_hw.devs[index].input_pc, 0, &buf_inp); 2337 2338 pinp = buf_inp.buffer; 2339 2340 epno = edesc->bEndpointAddress; 2341 type = edesc->bmAttributes & UE_XFERTYPE; 2342 2343 if (type == UE_CONTROL) 2344 epno |= UE_DIR_IN; 2345 2346 epno = XHCI_EPNO2EPID(epno); 2347 2348 if (epno == 0) 2349 return (USB_ERR_NO_PIPE); /* invalid */ 2350 2351 if (max_packet_count == 0) 2352 return (USB_ERR_BAD_BUFSIZE); 2353 2354 max_packet_count--; 2355 2356 if (mult == 0) 2357 return (USB_ERR_BAD_BUFSIZE); 2358 2359 /* store endpoint mode */ 2360 pepext->trb_ep_mode = ep_mode; 2361 /* store bMaxPacketSize for control endpoints */ 2362 pepext->trb_ep_maxp = edesc->wMaxPacketSize[0]; 2363 usb_pc_cpu_flush(pepext->page_cache); 2364 2365 if (ep_mode == USB_EP_MODE_STREAMS) { 2366 temp = XHCI_EPCTX_0_EPSTATE_SET(0) | 2367 XHCI_EPCTX_0_MAXP_STREAMS_SET(XHCI_MAX_STREAMS_LOG - 1) | 2368 XHCI_EPCTX_0_LSA_SET(1); 2369 2370 ring_addr += sizeof(struct xhci_trb) * 2371 XHCI_MAX_TRANSFERS * XHCI_MAX_STREAMS; 2372 } else { 2373 temp = XHCI_EPCTX_0_EPSTATE_SET(0) | 2374 XHCI_EPCTX_0_MAXP_STREAMS_SET(0) | 2375 XHCI_EPCTX_0_LSA_SET(0); 2376 2377 ring_addr |= XHCI_EPCTX_2_DCS_SET(1); 2378 } 2379 2380 switch (udev->speed) { 2381 case USB_SPEED_FULL: 2382 case USB_SPEED_LOW: 2383 /* 1ms -> 125us */ 2384 fps_shift += 3; 2385 break; 2386 default: 2387 break; 2388 } 2389 2390 switch (type) { 2391 case UE_INTERRUPT: 2392 if (fps_shift > 3) 2393 fps_shift--; 2394 temp |= XHCI_EPCTX_0_IVAL_SET(fps_shift); 2395 break; 2396 case UE_ISOCHRONOUS: 2397 temp |= XHCI_EPCTX_0_IVAL_SET(fps_shift); 2398 2399 switch (udev->speed) { 2400 case USB_SPEED_SUPER: 2401 if (mult > 3) 2402 mult = 3; 2403 temp |= XHCI_EPCTX_0_MULT_SET(mult - 1); 2404 max_packet_count /= mult; 2405 break; 2406 default: 2407 break; 2408 } 2409 break; 2410 default: 2411 break; 2412 } 2413 2414 xhci_ctx_set_le32(sc, &pinp->ctx_ep[epno - 1].dwEpCtx0, temp); 2415 2416 temp = 2417 XHCI_EPCTX_1_HID_SET(0) | 2418 XHCI_EPCTX_1_MAXB_SET(max_packet_count) | 2419 XHCI_EPCTX_1_MAXP_SIZE_SET(max_packet_size); 2420 2421 /* 2422 * Always enable the "three strikes and you are gone" feature 2423 * except for ISOCHRONOUS endpoints. This is suggested by 2424 * section 4.3.3 in the XHCI specification about device slot 2425 * initialisation. 2426 */ 2427 if (type != UE_ISOCHRONOUS) 2428 temp |= XHCI_EPCTX_1_CERR_SET(3); 2429 2430 switch (type) { 2431 case UE_CONTROL: 2432 temp |= XHCI_EPCTX_1_EPTYPE_SET(4); 2433 break; 2434 case UE_ISOCHRONOUS: 2435 temp |= XHCI_EPCTX_1_EPTYPE_SET(1); 2436 break; 2437 case UE_BULK: 2438 temp |= XHCI_EPCTX_1_EPTYPE_SET(2); 2439 break; 2440 default: 2441 temp |= XHCI_EPCTX_1_EPTYPE_SET(3); 2442 break; 2443 } 2444 2445 /* check for IN direction */ 2446 if (epno & 1) 2447 temp |= XHCI_EPCTX_1_EPTYPE_SET(4); 2448 2449 xhci_ctx_set_le32(sc, &pinp->ctx_ep[epno - 1].dwEpCtx1, temp); 2450 xhci_ctx_set_le64(sc, &pinp->ctx_ep[epno - 1].qwEpCtx2, ring_addr); 2451 2452 switch (edesc->bmAttributes & UE_XFERTYPE) { 2453 case UE_INTERRUPT: 2454 case UE_ISOCHRONOUS: 2455 temp = XHCI_EPCTX_4_MAX_ESIT_PAYLOAD_SET(max_frame_size) | 2456 XHCI_EPCTX_4_AVG_TRB_LEN_SET(MIN(XHCI_PAGE_SIZE, 2457 max_frame_size)); 2458 break; 2459 case UE_CONTROL: 2460 temp = XHCI_EPCTX_4_AVG_TRB_LEN_SET(8); 2461 break; 2462 default: 2463 temp = XHCI_EPCTX_4_AVG_TRB_LEN_SET(XHCI_PAGE_SIZE); 2464 break; 2465 } 2466 2467 xhci_ctx_set_le32(sc, &pinp->ctx_ep[epno - 1].dwEpCtx4, temp); 2468 2469 #ifdef USB_DEBUG 2470 xhci_dump_endpoint(sc, &pinp->ctx_ep[epno - 1]); 2471 #endif 2472 usb_pc_cpu_flush(&sc->sc_hw.devs[index].input_pc); 2473 2474 return (0); /* success */ 2475 } 2476 2477 static usb_error_t 2478 xhci_configure_endpoint_by_xfer(struct usb_xfer *xfer) 2479 { 2480 struct xhci_endpoint_ext *pepext; 2481 struct usb_endpoint_ss_comp_descriptor *ecomp; 2482 usb_stream_t x; 2483 2484 pepext = xhci_get_endpoint_ext(xfer->xroot->udev, 2485 xfer->endpoint->edesc); 2486 2487 ecomp = xfer->endpoint->ecomp; 2488 2489 for (x = 0; x != XHCI_MAX_STREAMS; x++) { 2490 uint64_t temp; 2491 2492 /* halt any transfers */ 2493 pepext->trb[x * XHCI_MAX_TRANSFERS].dwTrb3 = 0; 2494 2495 /* compute start of TRB ring for stream "x" */ 2496 temp = pepext->physaddr + 2497 (x * XHCI_MAX_TRANSFERS * sizeof(struct xhci_trb)) + 2498 XHCI_SCTX_0_SCT_SEC_TR_RING; 2499 2500 /* make tree structure */ 2501 pepext->trb[(XHCI_MAX_TRANSFERS * 2502 XHCI_MAX_STREAMS) + x].qwTrb0 = htole64(temp); 2503 2504 /* reserved fields */ 2505 pepext->trb[(XHCI_MAX_TRANSFERS * 2506 XHCI_MAX_STREAMS) + x].dwTrb2 = 0; 2507 pepext->trb[(XHCI_MAX_TRANSFERS * 2508 XHCI_MAX_STREAMS) + x].dwTrb3 = 0; 2509 } 2510 usb_pc_cpu_flush(pepext->page_cache); 2511 2512 return (xhci_configure_endpoint(xfer->xroot->udev, 2513 xfer->endpoint->edesc, pepext, 2514 xfer->interval, xfer->max_packet_count, 2515 (ecomp != NULL) ? UE_GET_SS_ISO_MULT(ecomp->bmAttributes) + 1 : 1, 2516 usbd_xfer_get_fps_shift(xfer), xfer->max_packet_size, 2517 xfer->max_frame_size, xfer->endpoint->ep_mode)); 2518 } 2519 2520 static usb_error_t 2521 xhci_configure_device(struct usb_device *udev) 2522 { 2523 struct xhci_softc *sc = XHCI_BUS2SC(udev->bus); 2524 struct usb_page_search buf_inp; 2525 struct usb_page_cache *pcinp; 2526 struct xhci_input_dev_ctx *pinp; 2527 struct usb_device *hubdev; 2528 uint32_t temp; 2529 uint32_t route; 2530 uint32_t rh_port; 2531 uint8_t is_hub; 2532 uint8_t index; 2533 uint8_t depth; 2534 2535 index = udev->controller_slot_id; 2536 2537 DPRINTF("index=%u\n", index); 2538 2539 pcinp = &sc->sc_hw.devs[index].input_pc; 2540 2541 usbd_get_page(pcinp, 0, &buf_inp); 2542 2543 pinp = buf_inp.buffer; 2544 2545 rh_port = 0; 2546 route = 0; 2547 2548 /* figure out route string and root HUB port number */ 2549 2550 for (hubdev = udev; hubdev != NULL; hubdev = hubdev->parent_hub) { 2551 2552 if (hubdev->parent_hub == NULL) 2553 break; 2554 2555 depth = hubdev->parent_hub->depth; 2556 2557 /* 2558 * NOTE: HS/FS/LS devices and the SS root HUB can have 2559 * more than 15 ports 2560 */ 2561 2562 rh_port = hubdev->port_no; 2563 2564 if (depth == 0) 2565 break; 2566 2567 if (rh_port > 15) 2568 rh_port = 15; 2569 2570 if (depth < 6) 2571 route |= rh_port << (4 * (depth - 1)); 2572 } 2573 2574 DPRINTF("Route=0x%08x\n", route); 2575 2576 temp = XHCI_SCTX_0_ROUTE_SET(route) | 2577 XHCI_SCTX_0_CTX_NUM_SET( 2578 sc->sc_hw.devs[index].context_num + 1); 2579 2580 switch (udev->speed) { 2581 case USB_SPEED_LOW: 2582 temp |= XHCI_SCTX_0_SPEED_SET(2); 2583 if (udev->parent_hs_hub != NULL && 2584 udev->parent_hs_hub->ddesc.bDeviceProtocol == 2585 UDPROTO_HSHUBMTT) { 2586 DPRINTF("Device inherits MTT\n"); 2587 temp |= XHCI_SCTX_0_MTT_SET(1); 2588 } 2589 break; 2590 case USB_SPEED_HIGH: 2591 temp |= XHCI_SCTX_0_SPEED_SET(3); 2592 if (sc->sc_hw.devs[index].nports != 0 && 2593 udev->ddesc.bDeviceProtocol == UDPROTO_HSHUBMTT) { 2594 DPRINTF("HUB supports MTT\n"); 2595 temp |= XHCI_SCTX_0_MTT_SET(1); 2596 } 2597 break; 2598 case USB_SPEED_FULL: 2599 temp |= XHCI_SCTX_0_SPEED_SET(1); 2600 if (udev->parent_hs_hub != NULL && 2601 udev->parent_hs_hub->ddesc.bDeviceProtocol == 2602 UDPROTO_HSHUBMTT) { 2603 DPRINTF("Device inherits MTT\n"); 2604 temp |= XHCI_SCTX_0_MTT_SET(1); 2605 } 2606 break; 2607 default: 2608 temp |= XHCI_SCTX_0_SPEED_SET(4); 2609 break; 2610 } 2611 2612 is_hub = sc->sc_hw.devs[index].nports != 0 && 2613 (udev->speed == USB_SPEED_SUPER || 2614 udev->speed == USB_SPEED_HIGH); 2615 2616 if (is_hub) 2617 temp |= XHCI_SCTX_0_HUB_SET(1); 2618 2619 xhci_ctx_set_le32(sc, &pinp->ctx_slot.dwSctx0, temp); 2620 2621 temp = XHCI_SCTX_1_RH_PORT_SET(rh_port); 2622 2623 if (is_hub) { 2624 temp |= XHCI_SCTX_1_NUM_PORTS_SET( 2625 sc->sc_hw.devs[index].nports); 2626 } 2627 2628 switch (udev->speed) { 2629 case USB_SPEED_SUPER: 2630 switch (sc->sc_hw.devs[index].state) { 2631 case XHCI_ST_ADDRESSED: 2632 case XHCI_ST_CONFIGURED: 2633 /* enable power save */ 2634 temp |= XHCI_SCTX_1_MAX_EL_SET(sc->sc_exit_lat_max); 2635 break; 2636 default: 2637 /* disable power save */ 2638 break; 2639 } 2640 break; 2641 default: 2642 break; 2643 } 2644 2645 xhci_ctx_set_le32(sc, &pinp->ctx_slot.dwSctx1, temp); 2646 2647 temp = XHCI_SCTX_2_IRQ_TARGET_SET(0); 2648 2649 if (is_hub) { 2650 temp |= XHCI_SCTX_2_TT_THINK_TIME_SET( 2651 sc->sc_hw.devs[index].tt); 2652 } 2653 2654 hubdev = udev->parent_hs_hub; 2655 2656 /* check if we should activate the transaction translator */ 2657 switch (udev->speed) { 2658 case USB_SPEED_FULL: 2659 case USB_SPEED_LOW: 2660 if (hubdev != NULL) { 2661 temp |= XHCI_SCTX_2_TT_HUB_SID_SET( 2662 hubdev->controller_slot_id); 2663 temp |= XHCI_SCTX_2_TT_PORT_NUM_SET( 2664 udev->hs_port_no); 2665 } 2666 break; 2667 default: 2668 break; 2669 } 2670 2671 xhci_ctx_set_le32(sc, &pinp->ctx_slot.dwSctx2, temp); 2672 2673 /* 2674 * These fields should be initialized to zero, according to 2675 * XHCI section 6.2.2 - slot context: 2676 */ 2677 temp = XHCI_SCTX_3_DEV_ADDR_SET(0) | 2678 XHCI_SCTX_3_SLOT_STATE_SET(0); 2679 2680 xhci_ctx_set_le32(sc, &pinp->ctx_slot.dwSctx3, temp); 2681 2682 #ifdef USB_DEBUG 2683 xhci_dump_device(sc, &pinp->ctx_slot); 2684 #endif 2685 usb_pc_cpu_flush(pcinp); 2686 2687 return (0); /* success */ 2688 } 2689 2690 static usb_error_t 2691 xhci_alloc_device_ext(struct usb_device *udev) 2692 { 2693 struct xhci_softc *sc = XHCI_BUS2SC(udev->bus); 2694 struct usb_page_search buf_dev; 2695 struct usb_page_search buf_ep; 2696 struct xhci_trb *trb; 2697 struct usb_page_cache *pc; 2698 struct usb_page *pg; 2699 uint64_t addr; 2700 uint8_t index; 2701 uint8_t i; 2702 2703 index = udev->controller_slot_id; 2704 2705 pc = &sc->sc_hw.devs[index].device_pc; 2706 pg = &sc->sc_hw.devs[index].device_pg; 2707 2708 /* need to initialize the page cache */ 2709 pc->tag_parent = sc->sc_bus.dma_parent_tag; 2710 2711 if (usb_pc_alloc_mem(pc, pg, sc->sc_ctx_is_64_byte ? 2712 (2 * sizeof(struct xhci_dev_ctx)) : 2713 sizeof(struct xhci_dev_ctx), XHCI_PAGE_SIZE)) 2714 goto error; 2715 2716 usbd_get_page(pc, 0, &buf_dev); 2717 2718 pc = &sc->sc_hw.devs[index].input_pc; 2719 pg = &sc->sc_hw.devs[index].input_pg; 2720 2721 /* need to initialize the page cache */ 2722 pc->tag_parent = sc->sc_bus.dma_parent_tag; 2723 2724 if (usb_pc_alloc_mem(pc, pg, sc->sc_ctx_is_64_byte ? 2725 (2 * sizeof(struct xhci_input_dev_ctx)) : 2726 sizeof(struct xhci_input_dev_ctx), XHCI_PAGE_SIZE)) { 2727 goto error; 2728 } 2729 2730 /* initialize all endpoint LINK TRBs */ 2731 2732 for (i = 0; i != XHCI_MAX_ENDPOINTS; i++) { 2733 2734 pc = &sc->sc_hw.devs[index].endpoint_pc[i]; 2735 pg = &sc->sc_hw.devs[index].endpoint_pg[i]; 2736 2737 /* need to initialize the page cache */ 2738 pc->tag_parent = sc->sc_bus.dma_parent_tag; 2739 2740 if (usb_pc_alloc_mem(pc, pg, 2741 sizeof(struct xhci_dev_endpoint_trbs), XHCI_TRB_ALIGN)) { 2742 goto error; 2743 } 2744 2745 /* lookup endpoint TRB ring */ 2746 usbd_get_page(pc, 0, &buf_ep); 2747 2748 /* get TRB pointer */ 2749 trb = buf_ep.buffer; 2750 trb += XHCI_MAX_TRANSFERS - 1; 2751 2752 /* get TRB start address */ 2753 addr = buf_ep.physaddr; 2754 2755 /* create LINK TRB */ 2756 trb->qwTrb0 = htole64(addr); 2757 trb->dwTrb2 = htole32(XHCI_TRB_2_IRQ_SET(0)); 2758 trb->dwTrb3 = htole32(XHCI_TRB_3_CYCLE_BIT | 2759 XHCI_TRB_3_TYPE_SET(XHCI_TRB_TYPE_LINK)); 2760 2761 usb_pc_cpu_flush(pc); 2762 } 2763 2764 xhci_set_slot_pointer(sc, index, buf_dev.physaddr); 2765 2766 return (0); 2767 2768 error: 2769 xhci_free_device_ext(udev); 2770 2771 return (USB_ERR_NOMEM); 2772 } 2773 2774 static void 2775 xhci_free_device_ext(struct usb_device *udev) 2776 { 2777 struct xhci_softc *sc = XHCI_BUS2SC(udev->bus); 2778 uint8_t index; 2779 uint8_t i; 2780 2781 index = udev->controller_slot_id; 2782 xhci_set_slot_pointer(sc, index, 0); 2783 2784 usb_pc_free_mem(&sc->sc_hw.devs[index].device_pc); 2785 usb_pc_free_mem(&sc->sc_hw.devs[index].input_pc); 2786 for (i = 0; i != XHCI_MAX_ENDPOINTS; i++) 2787 usb_pc_free_mem(&sc->sc_hw.devs[index].endpoint_pc[i]); 2788 } 2789 2790 static struct xhci_endpoint_ext * 2791 xhci_get_endpoint_ext(struct usb_device *udev, struct usb_endpoint_descriptor *edesc) 2792 { 2793 struct xhci_softc *sc = XHCI_BUS2SC(udev->bus); 2794 struct xhci_endpoint_ext *pepext; 2795 struct usb_page_cache *pc; 2796 struct usb_page_search buf_ep; 2797 uint8_t epno; 2798 uint8_t index; 2799 2800 epno = edesc->bEndpointAddress; 2801 if ((edesc->bmAttributes & UE_XFERTYPE) == UE_CONTROL) 2802 epno |= UE_DIR_IN; 2803 2804 epno = XHCI_EPNO2EPID(epno); 2805 2806 index = udev->controller_slot_id; 2807 2808 pc = &sc->sc_hw.devs[index].endpoint_pc[epno]; 2809 2810 usbd_get_page(pc, 0, &buf_ep); 2811 2812 pepext = &sc->sc_hw.devs[index].endp[epno]; 2813 pepext->page_cache = pc; 2814 pepext->trb = buf_ep.buffer; 2815 pepext->physaddr = buf_ep.physaddr; 2816 2817 return (pepext); 2818 } 2819 2820 static void 2821 xhci_endpoint_doorbell(struct usb_xfer *xfer) 2822 { 2823 struct xhci_softc *sc = XHCI_BUS2SC(xfer->xroot->bus); 2824 uint8_t epno; 2825 uint8_t index; 2826 2827 epno = xfer->endpointno; 2828 if (xfer->flags_int.control_xfr) 2829 epno |= UE_DIR_IN; 2830 2831 epno = XHCI_EPNO2EPID(epno); 2832 index = xfer->xroot->udev->controller_slot_id; 2833 2834 if (xfer->xroot->udev->flags.self_suspended == 0) { 2835 XWRITE4(sc, door, XHCI_DOORBELL(index), 2836 epno | XHCI_DB_SID_SET(xfer->stream_id)); 2837 } 2838 } 2839 2840 static void 2841 xhci_transfer_remove(struct usb_xfer *xfer, usb_error_t error) 2842 { 2843 struct xhci_endpoint_ext *pepext; 2844 2845 if (xfer->flags_int.bandwidth_reclaimed) { 2846 xfer->flags_int.bandwidth_reclaimed = 0; 2847 2848 pepext = xhci_get_endpoint_ext(xfer->xroot->udev, 2849 xfer->endpoint->edesc); 2850 2851 pepext->trb_used[xfer->stream_id]--; 2852 2853 pepext->xfer[xfer->qh_pos] = NULL; 2854 2855 if (error && pepext->trb_running != 0) { 2856 pepext->trb_halted = 1; 2857 pepext->trb_running = 0; 2858 } 2859 } 2860 } 2861 2862 static usb_error_t 2863 xhci_transfer_insert(struct usb_xfer *xfer) 2864 { 2865 struct xhci_td *td_first; 2866 struct xhci_td *td_last; 2867 struct xhci_trb *trb_link; 2868 struct xhci_endpoint_ext *pepext; 2869 uint64_t addr; 2870 usb_stream_t id; 2871 uint8_t i; 2872 uint8_t inext; 2873 uint8_t trb_limit; 2874 2875 DPRINTFN(8, "\n"); 2876 2877 id = xfer->stream_id; 2878 2879 /* check if already inserted */ 2880 if (xfer->flags_int.bandwidth_reclaimed) { 2881 DPRINTFN(8, "Already in schedule\n"); 2882 return (0); 2883 } 2884 2885 pepext = xhci_get_endpoint_ext(xfer->xroot->udev, 2886 xfer->endpoint->edesc); 2887 2888 td_first = xfer->td_transfer_first; 2889 td_last = xfer->td_transfer_last; 2890 addr = pepext->physaddr; 2891 2892 switch (xfer->endpoint->edesc->bmAttributes & UE_XFERTYPE) { 2893 case UE_CONTROL: 2894 case UE_INTERRUPT: 2895 /* single buffered */ 2896 trb_limit = 1; 2897 break; 2898 default: 2899 /* multi buffered */ 2900 trb_limit = (XHCI_MAX_TRANSFERS - 2); 2901 break; 2902 } 2903 2904 if (pepext->trb_used[id] >= trb_limit) { 2905 DPRINTFN(8, "Too many TDs queued.\n"); 2906 return (USB_ERR_NOMEM); 2907 } 2908 2909 /* check if bMaxPacketSize changed */ 2910 if (xfer->flags_int.control_xfr != 0 && 2911 pepext->trb_ep_maxp != xfer->endpoint->edesc->wMaxPacketSize[0]) { 2912 2913 DPRINTFN(8, "Reconfigure control endpoint\n"); 2914 2915 /* force driver to reconfigure endpoint */ 2916 pepext->trb_halted = 1; 2917 pepext->trb_running = 0; 2918 } 2919 2920 /* check for stopped condition, after putting transfer on interrupt queue */ 2921 if (pepext->trb_running == 0) { 2922 struct xhci_softc *sc = XHCI_BUS2SC(xfer->xroot->bus); 2923 2924 DPRINTFN(8, "Not running\n"); 2925 2926 /* start configuration */ 2927 (void)usb_proc_msignal(USB_BUS_CONTROL_XFER_PROC(&sc->sc_bus), 2928 &sc->sc_config_msg[0], &sc->sc_config_msg[1]); 2929 return (0); 2930 } 2931 2932 pepext->trb_used[id]++; 2933 2934 /* get current TRB index */ 2935 i = pepext->trb_index[id]; 2936 2937 /* get next TRB index */ 2938 inext = (i + 1); 2939 2940 /* the last entry of the ring is a hardcoded link TRB */ 2941 if (inext >= (XHCI_MAX_TRANSFERS - 1)) 2942 inext = 0; 2943 2944 /* store next TRB index, before stream ID offset is added */ 2945 pepext->trb_index[id] = inext; 2946 2947 /* offset for stream */ 2948 i += id * XHCI_MAX_TRANSFERS; 2949 inext += id * XHCI_MAX_TRANSFERS; 2950 2951 /* compute terminating return address */ 2952 addr += (inext * sizeof(struct xhci_trb)); 2953 2954 /* compute link TRB pointer */ 2955 trb_link = td_last->td_trb + td_last->ntrb; 2956 2957 /* update next pointer of last link TRB */ 2958 trb_link->qwTrb0 = htole64(addr); 2959 trb_link->dwTrb2 = htole32(XHCI_TRB_2_IRQ_SET(0)); 2960 trb_link->dwTrb3 = htole32(XHCI_TRB_3_IOC_BIT | 2961 XHCI_TRB_3_CYCLE_BIT | 2962 XHCI_TRB_3_TYPE_SET(XHCI_TRB_TYPE_LINK)); 2963 2964 #ifdef USB_DEBUG 2965 xhci_dump_trb(&td_last->td_trb[td_last->ntrb]); 2966 #endif 2967 usb_pc_cpu_flush(td_last->page_cache); 2968 2969 /* write ahead chain end marker */ 2970 2971 pepext->trb[inext].qwTrb0 = 0; 2972 pepext->trb[inext].dwTrb2 = 0; 2973 pepext->trb[inext].dwTrb3 = 0; 2974 2975 /* update next pointer of link TRB */ 2976 2977 pepext->trb[i].qwTrb0 = htole64((uint64_t)td_first->td_self); 2978 pepext->trb[i].dwTrb2 = htole32(XHCI_TRB_2_IRQ_SET(0)); 2979 2980 #ifdef USB_DEBUG 2981 xhci_dump_trb(&pepext->trb[i]); 2982 #endif 2983 usb_pc_cpu_flush(pepext->page_cache); 2984 2985 /* toggle cycle bit which activates the transfer chain */ 2986 2987 pepext->trb[i].dwTrb3 = htole32(XHCI_TRB_3_CYCLE_BIT | 2988 XHCI_TRB_3_TYPE_SET(XHCI_TRB_TYPE_LINK)); 2989 2990 usb_pc_cpu_flush(pepext->page_cache); 2991 2992 DPRINTF("qh_pos = %u\n", i); 2993 2994 pepext->xfer[i] = xfer; 2995 2996 xfer->qh_pos = i; 2997 2998 xfer->flags_int.bandwidth_reclaimed = 1; 2999 3000 xhci_endpoint_doorbell(xfer); 3001 3002 return (0); 3003 } 3004 3005 static void 3006 xhci_root_intr(struct xhci_softc *sc) 3007 { 3008 uint16_t i; 3009 3010 USB_BUS_LOCK_ASSERT(&sc->sc_bus, MA_OWNED); 3011 3012 /* clear any old interrupt data */ 3013 memset(sc->sc_hub_idata, 0, sizeof(sc->sc_hub_idata)); 3014 3015 for (i = 1; i <= sc->sc_noport; i++) { 3016 /* pick out CHANGE bits from the status register */ 3017 if (XREAD4(sc, oper, XHCI_PORTSC(i)) & ( 3018 XHCI_PS_CSC | XHCI_PS_PEC | 3019 XHCI_PS_OCC | XHCI_PS_WRC | 3020 XHCI_PS_PRC | XHCI_PS_PLC | 3021 XHCI_PS_CEC)) { 3022 sc->sc_hub_idata[i / 8] |= 1 << (i % 8); 3023 DPRINTF("port %d changed\n", i); 3024 } 3025 } 3026 uhub_root_intr(&sc->sc_bus, sc->sc_hub_idata, 3027 sizeof(sc->sc_hub_idata)); 3028 } 3029 3030 /*------------------------------------------------------------------------* 3031 * xhci_device_done - XHCI done handler 3032 * 3033 * NOTE: This function can be called two times in a row on 3034 * the same USB transfer. From close and from interrupt. 3035 *------------------------------------------------------------------------*/ 3036 static void 3037 xhci_device_done(struct usb_xfer *xfer, usb_error_t error) 3038 { 3039 DPRINTFN(2, "xfer=%p, endpoint=%p, error=%d\n", 3040 xfer, xfer->endpoint, error); 3041 3042 /* remove transfer from HW queue */ 3043 xhci_transfer_remove(xfer, error); 3044 3045 /* dequeue transfer and start next transfer */ 3046 usbd_transfer_done(xfer, error); 3047 } 3048 3049 /*------------------------------------------------------------------------* 3050 * XHCI data transfer support (generic type) 3051 *------------------------------------------------------------------------*/ 3052 static void 3053 xhci_device_generic_open(struct usb_xfer *xfer) 3054 { 3055 if (xfer->flags_int.isochronous_xfr) { 3056 switch (xfer->xroot->udev->speed) { 3057 case USB_SPEED_FULL: 3058 break; 3059 default: 3060 usb_hs_bandwidth_alloc(xfer); 3061 break; 3062 } 3063 } 3064 } 3065 3066 static void 3067 xhci_device_generic_close(struct usb_xfer *xfer) 3068 { 3069 DPRINTF("\n"); 3070 3071 xhci_device_done(xfer, USB_ERR_CANCELLED); 3072 3073 if (xfer->flags_int.isochronous_xfr) { 3074 switch (xfer->xroot->udev->speed) { 3075 case USB_SPEED_FULL: 3076 break; 3077 default: 3078 usb_hs_bandwidth_free(xfer); 3079 break; 3080 } 3081 } 3082 } 3083 3084 static void 3085 xhci_device_generic_multi_enter(struct usb_endpoint *ep, 3086 usb_stream_t stream_id, struct usb_xfer *enter_xfer) 3087 { 3088 struct usb_xfer *xfer; 3089 3090 /* check if there is a current transfer */ 3091 xfer = ep->endpoint_q[stream_id].curr; 3092 if (xfer == NULL) 3093 return; 3094 3095 /* 3096 * Check if the current transfer is started and then pickup 3097 * the next one, if any. Else wait for next start event due to 3098 * block on failure feature. 3099 */ 3100 if (!xfer->flags_int.bandwidth_reclaimed) 3101 return; 3102 3103 xfer = TAILQ_FIRST(&ep->endpoint_q[stream_id].head); 3104 if (xfer == NULL) { 3105 /* 3106 * In case of enter we have to consider that the 3107 * transfer is queued by the USB core after the enter 3108 * method is called. 3109 */ 3110 xfer = enter_xfer; 3111 3112 if (xfer == NULL) 3113 return; 3114 } 3115 3116 /* try to multi buffer */ 3117 xhci_transfer_insert(xfer); 3118 } 3119 3120 static void 3121 xhci_device_generic_enter(struct usb_xfer *xfer) 3122 { 3123 DPRINTF("\n"); 3124 3125 /* set up TD's and QH */ 3126 xhci_setup_generic_chain(xfer); 3127 3128 xhci_device_generic_multi_enter(xfer->endpoint, 3129 xfer->stream_id, xfer); 3130 } 3131 3132 static void 3133 xhci_device_generic_start(struct usb_xfer *xfer) 3134 { 3135 DPRINTF("\n"); 3136 3137 /* try to insert xfer on HW queue */ 3138 xhci_transfer_insert(xfer); 3139 3140 /* try to multi buffer */ 3141 xhci_device_generic_multi_enter(xfer->endpoint, 3142 xfer->stream_id, NULL); 3143 3144 /* add transfer last on interrupt queue */ 3145 usbd_transfer_enqueue(&xfer->xroot->bus->intr_q, xfer); 3146 3147 /* start timeout, if any */ 3148 if (xfer->timeout != 0) 3149 usbd_transfer_timeout_ms(xfer, &xhci_timeout, xfer->timeout); 3150 } 3151 3152 static const struct usb_pipe_methods xhci_device_generic_methods = 3153 { 3154 .open = xhci_device_generic_open, 3155 .close = xhci_device_generic_close, 3156 .enter = xhci_device_generic_enter, 3157 .start = xhci_device_generic_start, 3158 }; 3159 3160 /*------------------------------------------------------------------------* 3161 * xhci root HUB support 3162 *------------------------------------------------------------------------* 3163 * Simulate a hardware HUB by handling all the necessary requests. 3164 *------------------------------------------------------------------------*/ 3165 3166 #define HSETW(ptr, val) ptr = { (uint8_t)(val), (uint8_t)((val) >> 8) } 3167 3168 static const 3169 struct usb_device_descriptor xhci_devd = 3170 { 3171 .bLength = sizeof(xhci_devd), 3172 .bDescriptorType = UDESC_DEVICE, /* type */ 3173 HSETW(.bcdUSB, 0x0300), /* USB version */ 3174 .bDeviceClass = UDCLASS_HUB, /* class */ 3175 .bDeviceSubClass = UDSUBCLASS_HUB, /* subclass */ 3176 .bDeviceProtocol = UDPROTO_SSHUB, /* protocol */ 3177 .bMaxPacketSize = 9, /* max packet size */ 3178 HSETW(.idVendor, 0x0000), /* vendor */ 3179 HSETW(.idProduct, 0x0000), /* product */ 3180 HSETW(.bcdDevice, 0x0100), /* device version */ 3181 .iManufacturer = 1, 3182 .iProduct = 2, 3183 .iSerialNumber = 0, 3184 .bNumConfigurations = 1, /* # of configurations */ 3185 }; 3186 3187 static const 3188 struct xhci_bos_desc xhci_bosd = { 3189 .bosd = { 3190 .bLength = sizeof(xhci_bosd.bosd), 3191 .bDescriptorType = UDESC_BOS, 3192 HSETW(.wTotalLength, sizeof(xhci_bosd)), 3193 .bNumDeviceCaps = 3, 3194 }, 3195 .usb2extd = { 3196 .bLength = sizeof(xhci_bosd.usb2extd), 3197 .bDescriptorType = 1, 3198 .bDevCapabilityType = 2, 3199 .bmAttributes[0] = 2, 3200 }, 3201 .usbdcd = { 3202 .bLength = sizeof(xhci_bosd.usbdcd), 3203 .bDescriptorType = UDESC_DEVICE_CAPABILITY, 3204 .bDevCapabilityType = 3, 3205 .bmAttributes = 0, /* XXX */ 3206 HSETW(.wSpeedsSupported, 0x000C), 3207 .bFunctionalitySupport = 8, 3208 .bU1DevExitLat = 255, /* dummy - not used */ 3209 .wU2DevExitLat = { 0x00, 0x08 }, 3210 }, 3211 .cidd = { 3212 .bLength = sizeof(xhci_bosd.cidd), 3213 .bDescriptorType = 1, 3214 .bDevCapabilityType = 4, 3215 .bReserved = 0, 3216 .bContainerID = 0, /* XXX */ 3217 }, 3218 }; 3219 3220 static const 3221 struct xhci_config_desc xhci_confd = { 3222 .confd = { 3223 .bLength = sizeof(xhci_confd.confd), 3224 .bDescriptorType = UDESC_CONFIG, 3225 .wTotalLength[0] = sizeof(xhci_confd), 3226 .bNumInterface = 1, 3227 .bConfigurationValue = 1, 3228 .iConfiguration = 0, 3229 .bmAttributes = UC_SELF_POWERED, 3230 .bMaxPower = 0 /* max power */ 3231 }, 3232 .ifcd = { 3233 .bLength = sizeof(xhci_confd.ifcd), 3234 .bDescriptorType = UDESC_INTERFACE, 3235 .bNumEndpoints = 1, 3236 .bInterfaceClass = UICLASS_HUB, 3237 .bInterfaceSubClass = UISUBCLASS_HUB, 3238 .bInterfaceProtocol = 0, 3239 }, 3240 .endpd = { 3241 .bLength = sizeof(xhci_confd.endpd), 3242 .bDescriptorType = UDESC_ENDPOINT, 3243 .bEndpointAddress = UE_DIR_IN | XHCI_INTR_ENDPT, 3244 .bmAttributes = UE_INTERRUPT, 3245 .wMaxPacketSize[0] = 2, /* max 15 ports */ 3246 .bInterval = 255, 3247 }, 3248 .endpcd = { 3249 .bLength = sizeof(xhci_confd.endpcd), 3250 .bDescriptorType = UDESC_ENDPOINT_SS_COMP, 3251 .bMaxBurst = 0, 3252 .bmAttributes = 0, 3253 }, 3254 }; 3255 3256 static const 3257 struct usb_hub_ss_descriptor xhci_hubd = { 3258 .bLength = sizeof(xhci_hubd), 3259 .bDescriptorType = UDESC_SS_HUB, 3260 }; 3261 3262 static usb_error_t 3263 xhci_roothub_exec(struct usb_device *udev, 3264 struct usb_device_request *req, const void **pptr, uint16_t *plength) 3265 { 3266 struct xhci_softc *sc = XHCI_BUS2SC(udev->bus); 3267 const char *str_ptr; 3268 const void *ptr; 3269 uint32_t port; 3270 uint32_t v; 3271 uint16_t len; 3272 uint16_t i; 3273 uint16_t value; 3274 uint16_t index; 3275 uint8_t j; 3276 usb_error_t err; 3277 3278 USB_BUS_LOCK_ASSERT(&sc->sc_bus, MA_OWNED); 3279 3280 /* buffer reset */ 3281 ptr = (const void *)&sc->sc_hub_desc; 3282 len = 0; 3283 err = 0; 3284 3285 value = UGETW(req->wValue); 3286 index = UGETW(req->wIndex); 3287 3288 DPRINTFN(3, "type=0x%02x request=0x%02x wLen=0x%04x " 3289 "wValue=0x%04x wIndex=0x%04x\n", 3290 req->bmRequestType, req->bRequest, 3291 UGETW(req->wLength), value, index); 3292 3293 #define C(x,y) ((x) | ((y) << 8)) 3294 switch (C(req->bRequest, req->bmRequestType)) { 3295 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 3296 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 3297 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 3298 /* 3299 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 3300 * for the integrated root hub. 3301 */ 3302 break; 3303 case C(UR_GET_CONFIG, UT_READ_DEVICE): 3304 len = 1; 3305 sc->sc_hub_desc.temp[0] = sc->sc_conf; 3306 break; 3307 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 3308 switch (value >> 8) { 3309 case UDESC_DEVICE: 3310 if ((value & 0xff) != 0) { 3311 err = USB_ERR_IOERROR; 3312 goto done; 3313 } 3314 len = sizeof(xhci_devd); 3315 ptr = (const void *)&xhci_devd; 3316 break; 3317 3318 case UDESC_BOS: 3319 if ((value & 0xff) != 0) { 3320 err = USB_ERR_IOERROR; 3321 goto done; 3322 } 3323 len = sizeof(xhci_bosd); 3324 ptr = (const void *)&xhci_bosd; 3325 break; 3326 3327 case UDESC_CONFIG: 3328 if ((value & 0xff) != 0) { 3329 err = USB_ERR_IOERROR; 3330 goto done; 3331 } 3332 len = sizeof(xhci_confd); 3333 ptr = (const void *)&xhci_confd; 3334 break; 3335 3336 case UDESC_STRING: 3337 switch (value & 0xff) { 3338 case 0: /* Language table */ 3339 str_ptr = "\001"; 3340 break; 3341 3342 case 1: /* Vendor */ 3343 str_ptr = sc->sc_vendor; 3344 break; 3345 3346 case 2: /* Product */ 3347 str_ptr = "XHCI root HUB"; 3348 break; 3349 3350 default: 3351 str_ptr = ""; 3352 break; 3353 } 3354 3355 len = usb_make_str_desc( 3356 sc->sc_hub_desc.temp, 3357 sizeof(sc->sc_hub_desc.temp), 3358 str_ptr); 3359 break; 3360 3361 default: 3362 err = USB_ERR_IOERROR; 3363 goto done; 3364 } 3365 break; 3366 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 3367 len = 1; 3368 sc->sc_hub_desc.temp[0] = 0; 3369 break; 3370 case C(UR_GET_STATUS, UT_READ_DEVICE): 3371 len = 2; 3372 USETW(sc->sc_hub_desc.stat.wStatus, UDS_SELF_POWERED); 3373 break; 3374 case C(UR_GET_STATUS, UT_READ_INTERFACE): 3375 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 3376 len = 2; 3377 USETW(sc->sc_hub_desc.stat.wStatus, 0); 3378 break; 3379 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 3380 if (value >= XHCI_MAX_DEVICES) { 3381 err = USB_ERR_IOERROR; 3382 goto done; 3383 } 3384 break; 3385 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 3386 if (value != 0 && value != 1) { 3387 err = USB_ERR_IOERROR; 3388 goto done; 3389 } 3390 sc->sc_conf = value; 3391 break; 3392 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 3393 break; 3394 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 3395 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 3396 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 3397 err = USB_ERR_IOERROR; 3398 goto done; 3399 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 3400 break; 3401 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 3402 break; 3403 /* Hub requests */ 3404 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 3405 break; 3406 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 3407 DPRINTFN(9, "UR_CLEAR_PORT_FEATURE\n"); 3408 3409 if ((index < 1) || 3410 (index > sc->sc_noport)) { 3411 err = USB_ERR_IOERROR; 3412 goto done; 3413 } 3414 port = XHCI_PORTSC(index); 3415 3416 v = XREAD4(sc, oper, port); 3417 i = XHCI_PS_PLS_GET(v); 3418 v &= ~XHCI_PS_CLEAR; 3419 3420 switch (value) { 3421 case UHF_C_BH_PORT_RESET: 3422 XWRITE4(sc, oper, port, v | XHCI_PS_WRC); 3423 break; 3424 case UHF_C_PORT_CONFIG_ERROR: 3425 XWRITE4(sc, oper, port, v | XHCI_PS_CEC); 3426 break; 3427 case UHF_C_PORT_SUSPEND: 3428 case UHF_C_PORT_LINK_STATE: 3429 XWRITE4(sc, oper, port, v | XHCI_PS_PLC); 3430 break; 3431 case UHF_C_PORT_CONNECTION: 3432 XWRITE4(sc, oper, port, v | XHCI_PS_CSC); 3433 break; 3434 case UHF_C_PORT_ENABLE: 3435 XWRITE4(sc, oper, port, v | XHCI_PS_PEC); 3436 break; 3437 case UHF_C_PORT_OVER_CURRENT: 3438 XWRITE4(sc, oper, port, v | XHCI_PS_OCC); 3439 break; 3440 case UHF_C_PORT_RESET: 3441 XWRITE4(sc, oper, port, v | XHCI_PS_PRC); 3442 break; 3443 case UHF_PORT_ENABLE: 3444 XWRITE4(sc, oper, port, v | XHCI_PS_PED); 3445 break; 3446 case UHF_PORT_POWER: 3447 XWRITE4(sc, oper, port, v & ~XHCI_PS_PP); 3448 break; 3449 case UHF_PORT_INDICATOR: 3450 XWRITE4(sc, oper, port, v & ~XHCI_PS_PIC_SET(3)); 3451 break; 3452 case UHF_PORT_SUSPEND: 3453 3454 /* U3 -> U15 */ 3455 if (i == 3) { 3456 XWRITE4(sc, oper, port, v | 3457 XHCI_PS_PLS_SET(0xF) | XHCI_PS_LWS); 3458 } 3459 3460 /* wait 20ms for resume sequence to complete */ 3461 usb_pause_mtx(&sc->sc_bus.bus_mtx, hz / 50); 3462 3463 /* U0 */ 3464 XWRITE4(sc, oper, port, v | 3465 XHCI_PS_PLS_SET(0) | XHCI_PS_LWS); 3466 break; 3467 default: 3468 err = USB_ERR_IOERROR; 3469 goto done; 3470 } 3471 break; 3472 3473 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 3474 if ((value & 0xff) != 0) { 3475 err = USB_ERR_IOERROR; 3476 goto done; 3477 } 3478 3479 v = XREAD4(sc, capa, XHCI_HCSPARAMS0); 3480 3481 sc->sc_hub_desc.hubd = xhci_hubd; 3482 3483 sc->sc_hub_desc.hubd.bNbrPorts = sc->sc_noport; 3484 3485 if (XHCI_HCS0_PPC(v)) 3486 i = UHD_PWR_INDIVIDUAL; 3487 else 3488 i = UHD_PWR_GANGED; 3489 3490 if (XHCI_HCS0_PIND(v)) 3491 i |= UHD_PORT_IND; 3492 3493 i |= UHD_OC_INDIVIDUAL; 3494 3495 USETW(sc->sc_hub_desc.hubd.wHubCharacteristics, i); 3496 3497 /* see XHCI section 5.4.9: */ 3498 sc->sc_hub_desc.hubd.bPwrOn2PwrGood = 10; 3499 3500 for (j = 1; j <= sc->sc_noport; j++) { 3501 3502 v = XREAD4(sc, oper, XHCI_PORTSC(j)); 3503 if (v & XHCI_PS_DR) { 3504 sc->sc_hub_desc.hubd. 3505 DeviceRemovable[j / 8] |= 1U << (j % 8); 3506 } 3507 } 3508 len = sc->sc_hub_desc.hubd.bLength; 3509 break; 3510 3511 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 3512 len = 16; 3513 memset(sc->sc_hub_desc.temp, 0, 16); 3514 break; 3515 3516 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 3517 DPRINTFN(9, "UR_GET_STATUS i=%d\n", index); 3518 3519 if ((index < 1) || 3520 (index > sc->sc_noport)) { 3521 err = USB_ERR_IOERROR; 3522 goto done; 3523 } 3524 3525 v = XREAD4(sc, oper, XHCI_PORTSC(index)); 3526 3527 DPRINTFN(9, "port status=0x%08x\n", v); 3528 3529 i = UPS_PORT_LINK_STATE_SET(XHCI_PS_PLS_GET(v)); 3530 3531 switch (XHCI_PS_SPEED_GET(v)) { 3532 case 3: 3533 i |= UPS_HIGH_SPEED; 3534 break; 3535 case 2: 3536 i |= UPS_LOW_SPEED; 3537 break; 3538 case 1: 3539 /* FULL speed */ 3540 break; 3541 default: 3542 i |= UPS_OTHER_SPEED; 3543 break; 3544 } 3545 3546 if (v & XHCI_PS_CCS) 3547 i |= UPS_CURRENT_CONNECT_STATUS; 3548 if (v & XHCI_PS_PED) 3549 i |= UPS_PORT_ENABLED; 3550 if (v & XHCI_PS_OCA) 3551 i |= UPS_OVERCURRENT_INDICATOR; 3552 if (v & XHCI_PS_PR) 3553 i |= UPS_RESET; 3554 if (v & XHCI_PS_PP) { 3555 /* 3556 * The USB 3.0 RH is using the 3557 * USB 2.0's power bit 3558 */ 3559 i |= UPS_PORT_POWER; 3560 } 3561 USETW(sc->sc_hub_desc.ps.wPortStatus, i); 3562 3563 i = 0; 3564 if (v & XHCI_PS_CSC) 3565 i |= UPS_C_CONNECT_STATUS; 3566 if (v & XHCI_PS_PEC) 3567 i |= UPS_C_PORT_ENABLED; 3568 if (v & XHCI_PS_OCC) 3569 i |= UPS_C_OVERCURRENT_INDICATOR; 3570 if (v & XHCI_PS_WRC) 3571 i |= UPS_C_BH_PORT_RESET; 3572 if (v & XHCI_PS_PRC) 3573 i |= UPS_C_PORT_RESET; 3574 if (v & XHCI_PS_PLC) 3575 i |= UPS_C_PORT_LINK_STATE; 3576 if (v & XHCI_PS_CEC) 3577 i |= UPS_C_PORT_CONFIG_ERROR; 3578 3579 USETW(sc->sc_hub_desc.ps.wPortChange, i); 3580 len = sizeof(sc->sc_hub_desc.ps); 3581 break; 3582 3583 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 3584 err = USB_ERR_IOERROR; 3585 goto done; 3586 3587 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 3588 break; 3589 3590 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 3591 3592 i = index >> 8; 3593 index &= 0x00FF; 3594 3595 if ((index < 1) || 3596 (index > sc->sc_noport)) { 3597 err = USB_ERR_IOERROR; 3598 goto done; 3599 } 3600 3601 port = XHCI_PORTSC(index); 3602 v = XREAD4(sc, oper, port) & ~XHCI_PS_CLEAR; 3603 3604 switch (value) { 3605 case UHF_PORT_U1_TIMEOUT: 3606 if (XHCI_PS_SPEED_GET(v) != 4) { 3607 err = USB_ERR_IOERROR; 3608 goto done; 3609 } 3610 port = XHCI_PORTPMSC(index); 3611 v = XREAD4(sc, oper, port); 3612 v &= ~XHCI_PM3_U1TO_SET(0xFF); 3613 v |= XHCI_PM3_U1TO_SET(i); 3614 XWRITE4(sc, oper, port, v); 3615 break; 3616 case UHF_PORT_U2_TIMEOUT: 3617 if (XHCI_PS_SPEED_GET(v) != 4) { 3618 err = USB_ERR_IOERROR; 3619 goto done; 3620 } 3621 port = XHCI_PORTPMSC(index); 3622 v = XREAD4(sc, oper, port); 3623 v &= ~XHCI_PM3_U2TO_SET(0xFF); 3624 v |= XHCI_PM3_U2TO_SET(i); 3625 XWRITE4(sc, oper, port, v); 3626 break; 3627 case UHF_BH_PORT_RESET: 3628 XWRITE4(sc, oper, port, v | XHCI_PS_WPR); 3629 break; 3630 case UHF_PORT_LINK_STATE: 3631 XWRITE4(sc, oper, port, v | 3632 XHCI_PS_PLS_SET(i) | XHCI_PS_LWS); 3633 /* 4ms settle time */ 3634 usb_pause_mtx(&sc->sc_bus.bus_mtx, hz / 250); 3635 break; 3636 case UHF_PORT_ENABLE: 3637 DPRINTFN(3, "set port enable %d\n", index); 3638 break; 3639 case UHF_PORT_SUSPEND: 3640 DPRINTFN(6, "suspend port %u (LPM=%u)\n", index, i); 3641 j = XHCI_PS_SPEED_GET(v); 3642 if ((j < 1) || (j > 3)) { 3643 /* non-supported speed */ 3644 err = USB_ERR_IOERROR; 3645 goto done; 3646 } 3647 XWRITE4(sc, oper, port, v | 3648 XHCI_PS_PLS_SET(i ? 2 /* LPM */ : 3) | XHCI_PS_LWS); 3649 break; 3650 case UHF_PORT_RESET: 3651 DPRINTFN(6, "reset port %d\n", index); 3652 XWRITE4(sc, oper, port, v | XHCI_PS_PR); 3653 break; 3654 case UHF_PORT_POWER: 3655 DPRINTFN(3, "set port power %d\n", index); 3656 XWRITE4(sc, oper, port, v | XHCI_PS_PP); 3657 break; 3658 case UHF_PORT_TEST: 3659 DPRINTFN(3, "set port test %d\n", index); 3660 break; 3661 case UHF_PORT_INDICATOR: 3662 DPRINTFN(3, "set port indicator %d\n", index); 3663 3664 v &= ~XHCI_PS_PIC_SET(3); 3665 v |= XHCI_PS_PIC_SET(1); 3666 3667 XWRITE4(sc, oper, port, v); 3668 break; 3669 default: 3670 err = USB_ERR_IOERROR; 3671 goto done; 3672 } 3673 break; 3674 3675 case C(UR_CLEAR_TT_BUFFER, UT_WRITE_CLASS_OTHER): 3676 case C(UR_RESET_TT, UT_WRITE_CLASS_OTHER): 3677 case C(UR_GET_TT_STATE, UT_READ_CLASS_OTHER): 3678 case C(UR_STOP_TT, UT_WRITE_CLASS_OTHER): 3679 break; 3680 default: 3681 err = USB_ERR_IOERROR; 3682 goto done; 3683 } 3684 done: 3685 *plength = len; 3686 *pptr = ptr; 3687 return (err); 3688 } 3689 3690 static void 3691 xhci_xfer_setup(struct usb_setup_params *parm) 3692 { 3693 struct usb_page_search page_info; 3694 struct usb_page_cache *pc; 3695 struct xhci_softc *sc; 3696 struct usb_xfer *xfer; 3697 void *last_obj; 3698 uint32_t ntd; 3699 uint32_t n; 3700 3701 sc = XHCI_BUS2SC(parm->udev->bus); 3702 xfer = parm->curr_xfer; 3703 3704 /* 3705 * The proof for the "ntd" formula is illustrated like this: 3706 * 3707 * +------------------------------------+ 3708 * | | 3709 * | |remainder -> | 3710 * | +-----+---+ | 3711 * | | xxx | x | frm 0 | 3712 * | +-----+---++ | 3713 * | | xxx | xx | frm 1 | 3714 * | +-----+----+ | 3715 * | ... | 3716 * +------------------------------------+ 3717 * 3718 * "xxx" means a completely full USB transfer descriptor 3719 * 3720 * "x" and "xx" means a short USB packet 3721 * 3722 * For the remainder of an USB transfer modulo 3723 * "max_data_length" we need two USB transfer descriptors. 3724 * One to transfer the remaining data and one to finalise with 3725 * a zero length packet in case the "force_short_xfer" flag is 3726 * set. We only need two USB transfer descriptors in the case 3727 * where the transfer length of the first one is a factor of 3728 * "max_frame_size". The rest of the needed USB transfer 3729 * descriptors is given by the buffer size divided by the 3730 * maximum data payload. 3731 */ 3732 parm->hc_max_packet_size = 0x400; 3733 parm->hc_max_packet_count = 16 * 3; 3734 parm->hc_max_frame_size = XHCI_TD_PAYLOAD_MAX; 3735 3736 xfer->flags_int.bdma_enable = 1; 3737 3738 usbd_transfer_setup_sub(parm); 3739 3740 if (xfer->flags_int.isochronous_xfr) { 3741 ntd = ((1 * xfer->nframes) 3742 + (xfer->max_data_length / xfer->max_hc_frame_size)); 3743 } else if (xfer->flags_int.control_xfr) { 3744 ntd = ((2 * xfer->nframes) + 1 /* STATUS */ 3745 + (xfer->max_data_length / xfer->max_hc_frame_size)); 3746 } else { 3747 ntd = ((2 * xfer->nframes) 3748 + (xfer->max_data_length / xfer->max_hc_frame_size)); 3749 } 3750 3751 alloc_dma_set: 3752 3753 if (parm->err) 3754 return; 3755 3756 /* 3757 * Allocate queue heads and transfer descriptors 3758 */ 3759 last_obj = NULL; 3760 3761 if (usbd_transfer_setup_sub_malloc( 3762 parm, &pc, sizeof(struct xhci_td), 3763 XHCI_TD_ALIGN, ntd)) { 3764 parm->err = USB_ERR_NOMEM; 3765 return; 3766 } 3767 if (parm->buf) { 3768 for (n = 0; n != ntd; n++) { 3769 struct xhci_td *td; 3770 3771 usbd_get_page(pc + n, 0, &page_info); 3772 3773 td = page_info.buffer; 3774 3775 /* init TD */ 3776 td->td_self = page_info.physaddr; 3777 td->obj_next = last_obj; 3778 td->page_cache = pc + n; 3779 3780 last_obj = td; 3781 3782 usb_pc_cpu_flush(pc + n); 3783 } 3784 } 3785 xfer->td_start[xfer->flags_int.curr_dma_set] = last_obj; 3786 3787 if (!xfer->flags_int.curr_dma_set) { 3788 xfer->flags_int.curr_dma_set = 1; 3789 goto alloc_dma_set; 3790 } 3791 } 3792 3793 static usb_error_t 3794 xhci_configure_reset_endpoint(struct usb_xfer *xfer) 3795 { 3796 struct xhci_softc *sc = XHCI_BUS2SC(xfer->xroot->bus); 3797 struct usb_page_search buf_inp; 3798 struct usb_device *udev; 3799 struct xhci_endpoint_ext *pepext; 3800 struct usb_endpoint_descriptor *edesc; 3801 struct usb_page_cache *pcinp; 3802 usb_error_t err; 3803 usb_stream_t stream_id; 3804 uint8_t index; 3805 uint8_t epno; 3806 3807 pepext = xhci_get_endpoint_ext(xfer->xroot->udev, 3808 xfer->endpoint->edesc); 3809 3810 udev = xfer->xroot->udev; 3811 index = udev->controller_slot_id; 3812 3813 pcinp = &sc->sc_hw.devs[index].input_pc; 3814 3815 usbd_get_page(pcinp, 0, &buf_inp); 3816 3817 edesc = xfer->endpoint->edesc; 3818 3819 epno = edesc->bEndpointAddress; 3820 stream_id = xfer->stream_id; 3821 3822 if ((edesc->bmAttributes & UE_XFERTYPE) == UE_CONTROL) 3823 epno |= UE_DIR_IN; 3824 3825 epno = XHCI_EPNO2EPID(epno); 3826 3827 if (epno == 0) 3828 return (USB_ERR_NO_PIPE); /* invalid */ 3829 3830 XHCI_CMD_LOCK(sc); 3831 3832 /* configure endpoint */ 3833 3834 err = xhci_configure_endpoint_by_xfer(xfer); 3835 3836 if (err != 0) { 3837 XHCI_CMD_UNLOCK(sc); 3838 return (err); 3839 } 3840 3841 /* 3842 * Get the endpoint into the stopped state according to the 3843 * endpoint context state diagram in the XHCI specification: 3844 */ 3845 3846 err = xhci_cmd_stop_ep(sc, 0, epno, index); 3847 3848 if (err != 0) 3849 DPRINTF("Could not stop endpoint %u\n", epno); 3850 3851 err = xhci_cmd_reset_ep(sc, 0, epno, index); 3852 3853 if (err != 0) 3854 DPRINTF("Could not reset endpoint %u\n", epno); 3855 3856 err = xhci_cmd_set_tr_dequeue_ptr(sc, 3857 (pepext->physaddr + (stream_id * sizeof(struct xhci_trb) * 3858 XHCI_MAX_TRANSFERS)) | XHCI_EPCTX_2_DCS_SET(1), 3859 stream_id, epno, index); 3860 3861 if (err != 0) 3862 DPRINTF("Could not set dequeue ptr for endpoint %u\n", epno); 3863 3864 /* 3865 * Get the endpoint into the running state according to the 3866 * endpoint context state diagram in the XHCI specification: 3867 */ 3868 3869 xhci_configure_mask(udev, (1U << epno) | 1U, 0); 3870 3871 err = xhci_cmd_evaluate_ctx(sc, buf_inp.physaddr, index); 3872 3873 if (err != 0) 3874 DPRINTF("Could not configure endpoint %u\n", epno); 3875 3876 err = xhci_cmd_configure_ep(sc, buf_inp.physaddr, 0, index); 3877 3878 if (err != 0) 3879 DPRINTF("Could not configure endpoint %u\n", epno); 3880 3881 XHCI_CMD_UNLOCK(sc); 3882 3883 return (0); 3884 } 3885 3886 static void 3887 xhci_xfer_unsetup(struct usb_xfer *xfer) 3888 { 3889 return; 3890 } 3891 3892 static void 3893 xhci_start_dma_delay(struct usb_xfer *xfer) 3894 { 3895 struct xhci_softc *sc = XHCI_BUS2SC(xfer->xroot->bus); 3896 3897 /* put transfer on interrupt queue (again) */ 3898 usbd_transfer_enqueue(&sc->sc_bus.intr_q, xfer); 3899 3900 (void)usb_proc_msignal(USB_BUS_CONTROL_XFER_PROC(&sc->sc_bus), 3901 &sc->sc_config_msg[0], &sc->sc_config_msg[1]); 3902 } 3903 3904 static void 3905 xhci_configure_msg(struct usb_proc_msg *pm) 3906 { 3907 struct xhci_softc *sc; 3908 struct xhci_endpoint_ext *pepext; 3909 struct usb_xfer *xfer; 3910 3911 sc = XHCI_BUS2SC(((struct usb_bus_msg *)pm)->bus); 3912 3913 restart: 3914 TAILQ_FOREACH(xfer, &sc->sc_bus.intr_q.head, wait_entry) { 3915 3916 pepext = xhci_get_endpoint_ext(xfer->xroot->udev, 3917 xfer->endpoint->edesc); 3918 3919 if ((pepext->trb_halted != 0) || 3920 (pepext->trb_running == 0)) { 3921 3922 uint16_t i; 3923 3924 /* clear halted and running */ 3925 pepext->trb_halted = 0; 3926 pepext->trb_running = 0; 3927 3928 /* nuke remaining buffered transfers */ 3929 3930 for (i = 0; i != (XHCI_MAX_TRANSFERS * 3931 XHCI_MAX_STREAMS); i++) { 3932 /* 3933 * NOTE: We need to use the timeout 3934 * error code here else existing 3935 * isochronous clients can get 3936 * confused: 3937 */ 3938 if (pepext->xfer[i] != NULL) { 3939 xhci_device_done(pepext->xfer[i], 3940 USB_ERR_TIMEOUT); 3941 } 3942 } 3943 3944 /* 3945 * NOTE: The USB transfer cannot vanish in 3946 * this state! 3947 */ 3948 3949 USB_BUS_UNLOCK(&sc->sc_bus); 3950 3951 xhci_configure_reset_endpoint(xfer); 3952 3953 USB_BUS_LOCK(&sc->sc_bus); 3954 3955 /* check if halted is still cleared */ 3956 if (pepext->trb_halted == 0) { 3957 pepext->trb_running = 1; 3958 memset(pepext->trb_index, 0, 3959 sizeof(pepext->trb_index)); 3960 } 3961 goto restart; 3962 } 3963 3964 if (xfer->flags_int.did_dma_delay) { 3965 3966 /* remove transfer from interrupt queue (again) */ 3967 usbd_transfer_dequeue(xfer); 3968 3969 /* we are finally done */ 3970 usb_dma_delay_done_cb(xfer); 3971 3972 /* queue changed - restart */ 3973 goto restart; 3974 } 3975 } 3976 3977 TAILQ_FOREACH(xfer, &sc->sc_bus.intr_q.head, wait_entry) { 3978 3979 /* try to insert xfer on HW queue */ 3980 xhci_transfer_insert(xfer); 3981 3982 /* try to multi buffer */ 3983 xhci_device_generic_multi_enter(xfer->endpoint, 3984 xfer->stream_id, NULL); 3985 } 3986 } 3987 3988 static void 3989 xhci_ep_init(struct usb_device *udev, struct usb_endpoint_descriptor *edesc, 3990 struct usb_endpoint *ep) 3991 { 3992 struct xhci_endpoint_ext *pepext; 3993 3994 DPRINTFN(2, "endpoint=%p, addr=%d, endpt=%d, mode=%d\n", 3995 ep, udev->address, edesc->bEndpointAddress, udev->flags.usb_mode); 3996 3997 if (udev->parent_hub == NULL) { 3998 /* root HUB has special endpoint handling */ 3999 return; 4000 } 4001 4002 ep->methods = &xhci_device_generic_methods; 4003 4004 pepext = xhci_get_endpoint_ext(udev, edesc); 4005 4006 USB_BUS_LOCK(udev->bus); 4007 pepext->trb_halted = 1; 4008 pepext->trb_running = 0; 4009 USB_BUS_UNLOCK(udev->bus); 4010 } 4011 4012 static void 4013 xhci_ep_uninit(struct usb_device *udev, struct usb_endpoint *ep) 4014 { 4015 4016 } 4017 4018 static void 4019 xhci_ep_clear_stall(struct usb_device *udev, struct usb_endpoint *ep) 4020 { 4021 struct xhci_endpoint_ext *pepext; 4022 4023 DPRINTF("\n"); 4024 4025 if (udev->flags.usb_mode != USB_MODE_HOST) { 4026 /* not supported */ 4027 return; 4028 } 4029 if (udev->parent_hub == NULL) { 4030 /* root HUB has special endpoint handling */ 4031 return; 4032 } 4033 4034 pepext = xhci_get_endpoint_ext(udev, ep->edesc); 4035 4036 USB_BUS_LOCK(udev->bus); 4037 pepext->trb_halted = 1; 4038 pepext->trb_running = 0; 4039 USB_BUS_UNLOCK(udev->bus); 4040 } 4041 4042 static usb_error_t 4043 xhci_device_init(struct usb_device *udev) 4044 { 4045 struct xhci_softc *sc = XHCI_BUS2SC(udev->bus); 4046 usb_error_t err; 4047 uint8_t temp; 4048 4049 /* no init for root HUB */ 4050 if (udev->parent_hub == NULL) 4051 return (0); 4052 4053 XHCI_CMD_LOCK(sc); 4054 4055 /* set invalid default */ 4056 4057 udev->controller_slot_id = sc->sc_noslot + 1; 4058 4059 /* try to get a new slot ID from the XHCI */ 4060 4061 err = xhci_cmd_enable_slot(sc, &temp); 4062 4063 if (err) { 4064 XHCI_CMD_UNLOCK(sc); 4065 return (err); 4066 } 4067 4068 if (temp > sc->sc_noslot) { 4069 XHCI_CMD_UNLOCK(sc); 4070 return (USB_ERR_BAD_ADDRESS); 4071 } 4072 4073 if (sc->sc_hw.devs[temp].state != XHCI_ST_DISABLED) { 4074 DPRINTF("slot %u already allocated.\n", temp); 4075 XHCI_CMD_UNLOCK(sc); 4076 return (USB_ERR_BAD_ADDRESS); 4077 } 4078 4079 /* store slot ID for later reference */ 4080 4081 udev->controller_slot_id = temp; 4082 4083 /* reset data structure */ 4084 4085 memset(&sc->sc_hw.devs[temp], 0, sizeof(sc->sc_hw.devs[0])); 4086 4087 /* set mark slot allocated */ 4088 4089 sc->sc_hw.devs[temp].state = XHCI_ST_ENABLED; 4090 4091 err = xhci_alloc_device_ext(udev); 4092 4093 XHCI_CMD_UNLOCK(sc); 4094 4095 /* get device into default state */ 4096 4097 if (err == 0) 4098 err = xhci_set_address(udev, NULL, 0); 4099 4100 return (err); 4101 } 4102 4103 static void 4104 xhci_device_uninit(struct usb_device *udev) 4105 { 4106 struct xhci_softc *sc = XHCI_BUS2SC(udev->bus); 4107 uint8_t index; 4108 4109 /* no init for root HUB */ 4110 if (udev->parent_hub == NULL) 4111 return; 4112 4113 XHCI_CMD_LOCK(sc); 4114 4115 index = udev->controller_slot_id; 4116 4117 if (index <= sc->sc_noslot) { 4118 xhci_cmd_disable_slot(sc, index); 4119 sc->sc_hw.devs[index].state = XHCI_ST_DISABLED; 4120 4121 /* free device extension */ 4122 xhci_free_device_ext(udev); 4123 } 4124 4125 XHCI_CMD_UNLOCK(sc); 4126 } 4127 4128 static void 4129 xhci_get_dma_delay(struct usb_device *udev, uint32_t *pus) 4130 { 4131 /* 4132 * Wait until the hardware has finished any possible use of 4133 * the transfer descriptor(s) 4134 */ 4135 *pus = 2048; /* microseconds */ 4136 } 4137 4138 static void 4139 xhci_device_resume(struct usb_device *udev) 4140 { 4141 struct xhci_softc *sc = XHCI_BUS2SC(udev->bus); 4142 uint8_t index; 4143 uint8_t n; 4144 uint8_t p; 4145 4146 DPRINTF("\n"); 4147 4148 /* check for root HUB */ 4149 if (udev->parent_hub == NULL) 4150 return; 4151 4152 index = udev->controller_slot_id; 4153 4154 XHCI_CMD_LOCK(sc); 4155 4156 /* blindly resume all endpoints */ 4157 4158 USB_BUS_LOCK(udev->bus); 4159 4160 for (n = 1; n != XHCI_MAX_ENDPOINTS; n++) { 4161 for (p = 0; p != XHCI_MAX_STREAMS; p++) { 4162 XWRITE4(sc, door, XHCI_DOORBELL(index), 4163 n | XHCI_DB_SID_SET(p)); 4164 } 4165 } 4166 4167 USB_BUS_UNLOCK(udev->bus); 4168 4169 XHCI_CMD_UNLOCK(sc); 4170 } 4171 4172 static void 4173 xhci_device_suspend(struct usb_device *udev) 4174 { 4175 struct xhci_softc *sc = XHCI_BUS2SC(udev->bus); 4176 uint8_t index; 4177 uint8_t n; 4178 usb_error_t err; 4179 4180 DPRINTF("\n"); 4181 4182 /* check for root HUB */ 4183 if (udev->parent_hub == NULL) 4184 return; 4185 4186 index = udev->controller_slot_id; 4187 4188 XHCI_CMD_LOCK(sc); 4189 4190 /* blindly suspend all endpoints */ 4191 4192 for (n = 1; n != XHCI_MAX_ENDPOINTS; n++) { 4193 err = xhci_cmd_stop_ep(sc, 1, n, index); 4194 if (err != 0) { 4195 DPRINTF("Failed to suspend endpoint " 4196 "%u on slot %u (ignored).\n", n, index); 4197 } 4198 } 4199 4200 XHCI_CMD_UNLOCK(sc); 4201 } 4202 4203 static void 4204 xhci_set_hw_power(struct usb_bus *bus) 4205 { 4206 DPRINTF("\n"); 4207 } 4208 4209 static void 4210 xhci_device_state_change(struct usb_device *udev) 4211 { 4212 struct xhci_softc *sc = XHCI_BUS2SC(udev->bus); 4213 struct usb_page_search buf_inp; 4214 usb_error_t err; 4215 uint8_t index; 4216 4217 /* check for root HUB */ 4218 if (udev->parent_hub == NULL) 4219 return; 4220 4221 index = udev->controller_slot_id; 4222 4223 DPRINTF("\n"); 4224 4225 if (usb_get_device_state(udev) == USB_STATE_CONFIGURED) { 4226 err = uhub_query_info(udev, &sc->sc_hw.devs[index].nports, 4227 &sc->sc_hw.devs[index].tt); 4228 if (err != 0) 4229 sc->sc_hw.devs[index].nports = 0; 4230 } 4231 4232 XHCI_CMD_LOCK(sc); 4233 4234 switch (usb_get_device_state(udev)) { 4235 case USB_STATE_POWERED: 4236 if (sc->sc_hw.devs[index].state == XHCI_ST_DEFAULT) 4237 break; 4238 4239 /* set default state */ 4240 sc->sc_hw.devs[index].state = XHCI_ST_DEFAULT; 4241 4242 /* reset number of contexts */ 4243 sc->sc_hw.devs[index].context_num = 0; 4244 4245 err = xhci_cmd_reset_dev(sc, index); 4246 4247 if (err != 0) { 4248 DPRINTF("Device reset failed " 4249 "for slot %u.\n", index); 4250 } 4251 break; 4252 4253 case USB_STATE_ADDRESSED: 4254 if (sc->sc_hw.devs[index].state == XHCI_ST_ADDRESSED) 4255 break; 4256 4257 sc->sc_hw.devs[index].state = XHCI_ST_ADDRESSED; 4258 4259 err = xhci_cmd_configure_ep(sc, 0, 1, index); 4260 4261 if (err) { 4262 DPRINTF("Failed to deconfigure " 4263 "slot %u.\n", index); 4264 } 4265 break; 4266 4267 case USB_STATE_CONFIGURED: 4268 if (sc->sc_hw.devs[index].state == XHCI_ST_CONFIGURED) 4269 break; 4270 4271 /* set configured state */ 4272 sc->sc_hw.devs[index].state = XHCI_ST_CONFIGURED; 4273 4274 /* reset number of contexts */ 4275 sc->sc_hw.devs[index].context_num = 0; 4276 4277 usbd_get_page(&sc->sc_hw.devs[index].input_pc, 0, &buf_inp); 4278 4279 xhci_configure_mask(udev, 3, 0); 4280 4281 err = xhci_configure_device(udev); 4282 if (err != 0) { 4283 DPRINTF("Could not configure device " 4284 "at slot %u.\n", index); 4285 } 4286 4287 err = xhci_cmd_evaluate_ctx(sc, buf_inp.physaddr, index); 4288 if (err != 0) { 4289 DPRINTF("Could not evaluate device " 4290 "context at slot %u.\n", index); 4291 } 4292 break; 4293 4294 default: 4295 break; 4296 } 4297 XHCI_CMD_UNLOCK(sc); 4298 } 4299 4300 static usb_error_t 4301 xhci_set_endpoint_mode(struct usb_device *udev, struct usb_endpoint *ep, 4302 uint8_t ep_mode) 4303 { 4304 switch (ep_mode) { 4305 case USB_EP_MODE_DEFAULT: 4306 return (0); 4307 case USB_EP_MODE_STREAMS: 4308 if (xhcistreams == 0 || 4309 (ep->edesc->bmAttributes & UE_XFERTYPE) != UE_BULK || 4310 udev->speed != USB_SPEED_SUPER) 4311 return (USB_ERR_INVAL); 4312 return (0); 4313 default: 4314 return (USB_ERR_INVAL); 4315 } 4316 } 4317 4318 static const struct usb_bus_methods xhci_bus_methods = { 4319 .endpoint_init = xhci_ep_init, 4320 .endpoint_uninit = xhci_ep_uninit, 4321 .xfer_setup = xhci_xfer_setup, 4322 .xfer_unsetup = xhci_xfer_unsetup, 4323 .get_dma_delay = xhci_get_dma_delay, 4324 .device_init = xhci_device_init, 4325 .device_uninit = xhci_device_uninit, 4326 .device_resume = xhci_device_resume, 4327 .device_suspend = xhci_device_suspend, 4328 .set_hw_power = xhci_set_hw_power, 4329 .roothub_exec = xhci_roothub_exec, 4330 .xfer_poll = xhci_do_poll, 4331 .start_dma_delay = xhci_start_dma_delay, 4332 .set_address = xhci_set_address, 4333 .clear_stall = xhci_ep_clear_stall, 4334 .device_state_change = xhci_device_state_change, 4335 .set_hw_power_sleep = xhci_set_hw_power_sleep, 4336 .set_endpoint_mode = xhci_set_endpoint_mode, 4337 }; 4338