2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2010 Hans Petter Selasky. All rights reserved.
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 #include <sys/cdefs.h>
29 __FBSDID("$FreeBSD$");
31 #include <sys/stdint.h>
32 #include <sys/stddef.h>
33 #include <sys/param.h>
34 #include <sys/queue.h>
35 #include <sys/types.h>
36 #include <sys/systm.h>
37 #include <sys/kernel.h>
39 #include <sys/module.h>
41 #include <sys/mutex.h>
42 #include <sys/condvar.h>
43 #include <sys/sysctl.h>
45 #include <sys/unistd.h>
46 #include <sys/callout.h>
47 #include <sys/malloc.h>
50 #include <dev/usb/usb.h>
51 #include <dev/usb/usbdi.h>
53 #include <dev/usb/usb_core.h>
54 #include <dev/usb/usb_busdma.h>
55 #include <dev/usb/usb_process.h>
56 #include <dev/usb/usb_util.h>
58 #include <dev/usb/usb_controller.h>
59 #include <dev/usb/usb_bus.h>
60 #include <dev/usb/usb_pci.h>
61 #include <dev/usb/controller/xhci.h>
62 #include <dev/usb/controller/xhcireg.h>
65 static device_probe_t xhci_pci_probe;
66 static device_attach_t xhci_pci_attach;
67 static device_detach_t xhci_pci_detach;
68 static usb_take_controller_t xhci_pci_take_controller;
70 static device_method_t xhci_device_methods[] = {
71 /* device interface */
72 DEVMETHOD(device_probe, xhci_pci_probe),
73 DEVMETHOD(device_attach, xhci_pci_attach),
74 DEVMETHOD(device_detach, xhci_pci_detach),
75 DEVMETHOD(device_suspend, bus_generic_suspend),
76 DEVMETHOD(device_resume, bus_generic_resume),
77 DEVMETHOD(device_shutdown, bus_generic_shutdown),
78 DEVMETHOD(usb_take_controller, xhci_pci_take_controller),
83 static driver_t xhci_driver = {
85 .methods = xhci_device_methods,
86 .size = sizeof(struct xhci_softc),
89 static devclass_t xhci_devclass;
91 DRIVER_MODULE(xhci, pci, xhci_driver, xhci_devclass, NULL, NULL);
92 MODULE_DEPEND(xhci, usb, 1, 1, 1);
95 xhci_pci_match(device_t self)
97 uint32_t device_id = pci_get_devid(self);
101 return ("AMD KERNCZ USB 3.0 controller");
103 return ("AMD 300 Series USB 3.0 controller");
105 return ("AMD FCH USB 3.0 controller");
108 return ("NEC uPD720200 USB 3.0 controller");
110 return ("NEC uPD720202 USB 3.0 controller");
113 return ("Fresco Logic FL1000G USB 3.0 controller");
116 return ("ASMedia ASM1042 USB 3.0 controller");
118 return ("ASMedia ASM1042A USB 3.0 controller");
121 return ("Intel BayTrail USB 3.0 controller");
123 return ("Intel Denverton USB 3.0 controller");
126 return ("Intel Panther Point USB 3.0 controller");
128 return ("Intel Braswell USB 3.0 controller");
130 return ("Intel Apollo Lake USB 3.0 controller");
132 return ("Intel Lynx Point USB 3.0 controller");
134 return ("Intel Wildcat Point USB 3.0 controller");
136 return ("Intel Wellsburg USB 3.0 controller");
138 return ("Broadwell Integrated PCH-LP chipset USB 3.0 controller");
140 return ("Intel Sunrise Point-LP USB 3.0 controller");
142 return ("Intel Sunrise Point USB 3.0 controller");
144 return ("Intel Lewisburg USB 3.0 controller");
146 return ("Intel Union Point USB 3.0 controller");
149 return ("Cavium ThunderX USB 3.0 controller");
155 if ((pci_get_class(self) == PCIC_SERIALBUS)
156 && (pci_get_subclass(self) == PCIS_SERIALBUS_USB)
157 && (pci_get_progif(self) == PCIP_SERIALBUS_USB_XHCI)) {
158 return ("XHCI (generic) USB 3.0 controller");
160 return (NULL); /* dunno */
164 xhci_pci_probe(device_t self)
166 const char *desc = xhci_pci_match(self);
169 device_set_desc(self, desc);
170 return (BUS_PROBE_DEFAULT);
176 static int xhci_use_msi = 1;
177 TUNABLE_INT("hw.usb.xhci.msi", &xhci_use_msi);
178 static int xhci_use_msix = 1;
179 TUNABLE_INT("hw.usb.xhci.msix", &xhci_use_msix);
182 xhci_interrupt_poll(void *_sc)
184 struct xhci_softc *sc = _sc;
185 USB_BUS_UNLOCK(&sc->sc_bus);
187 USB_BUS_LOCK(&sc->sc_bus);
188 usb_callout_reset(&sc->sc_callout, 1, (void *)&xhci_interrupt_poll, sc);
192 xhci_pci_port_route(device_t self, uint32_t set, uint32_t clear)
198 temp = pci_read_config(self, PCI_XHCI_INTEL_USB3_PSSEN, 4) |
199 pci_read_config(self, PCI_XHCI_INTEL_XUSB2PR, 4);
204 /* Don't set bits which the hardware doesn't support */
205 usb3_mask = pci_read_config(self, PCI_XHCI_INTEL_USB3PRM, 4);
206 usb2_mask = pci_read_config(self, PCI_XHCI_INTEL_USB2PRM, 4);
208 pci_write_config(self, PCI_XHCI_INTEL_USB3_PSSEN, temp & usb3_mask, 4);
209 pci_write_config(self, PCI_XHCI_INTEL_XUSB2PR, temp & usb2_mask, 4);
211 device_printf(self, "Port routing mask set to 0x%08x\n", temp);
217 xhci_pci_attach(device_t self)
219 struct xhci_softc *sc = device_get_softc(self);
220 int count, err, msix_table, rid;
222 uint8_t usedma32 = 0;
224 rid = PCI_XHCI_CBMEM;
225 sc->sc_io_res = bus_alloc_resource_any(self, SYS_RES_MEMORY, &rid,
227 if (!sc->sc_io_res) {
228 device_printf(self, "Could not map memory\n");
231 sc->sc_io_tag = rman_get_bustag(sc->sc_io_res);
232 sc->sc_io_hdl = rman_get_bushandle(sc->sc_io_res);
233 sc->sc_io_size = rman_get_size(sc->sc_io_res);
235 switch (pci_get_devid(self)) {
236 case 0x01941033: /* NEC uPD720200 USB 3.0 controller */
237 case 0x00141912: /* NEC uPD720201 USB 3.0 controller */
238 /* Don't use 64-bit DMA on these controllers. */
241 case 0x10001b73: /* FL1000G */
242 /* Fresco Logic host doesn't support MSI. */
245 case 0x0f358086: /* BayTrail */
246 case 0x9c318086: /* Panther Point */
247 case 0x1e318086: /* Panther Point */
248 case 0x8c318086: /* Lynx Point */
249 case 0x8cb18086: /* Wildcat Point */
250 case 0x9cb18086: /* Broadwell Mobile Integrated */
252 * On Intel chipsets, reroute ports from EHCI to XHCI
253 * controller and use a different IMOD value.
255 sc->sc_port_route = &xhci_pci_port_route;
256 sc->sc_imod_default = XHCI_IMOD_DEFAULT_LP;
260 if (xhci_init(sc, self, usedma32)) {
261 device_printf(self, "Could not initialize softc\n");
262 bus_release_resource(self, SYS_RES_MEMORY, PCI_XHCI_CBMEM,
267 pci_enable_busmaster(self);
269 usb_callout_init_mtx(&sc->sc_callout, &sc->sc_bus.bus_mtx, 0);
272 if (xhci_use_msix && (msix_table = pci_msix_table_bar(self)) >= 0) {
273 sc->sc_msix_res = bus_alloc_resource_any(self, SYS_RES_MEMORY,
274 &msix_table, RF_ACTIVE);
275 if (sc->sc_msix_res == NULL) {
276 /* May not be enabled */
278 "Unable to map MSI-X table \n");
281 if (pci_alloc_msix(self, &count) == 0) {
283 device_printf(self, "MSI-X enabled\n");
286 bus_release_resource(self, SYS_RES_MEMORY,
287 msix_table, sc->sc_msix_res);
288 sc->sc_msix_res = NULL;
292 if (rid == 0 && xhci_use_msi && usemsi) {
294 if (pci_alloc_msi(self, &count) == 0) {
296 device_printf(self, "MSI enabled\n");
300 sc->sc_irq_res = bus_alloc_resource_any(self, SYS_RES_IRQ, &rid,
301 RF_ACTIVE | (rid != 0 ? 0 : RF_SHAREABLE));
302 if (sc->sc_irq_res == NULL) {
303 pci_release_msi(self);
304 device_printf(self, "Could not allocate IRQ\n");
305 /* goto error; FALLTHROUGH - use polling */
307 sc->sc_bus.bdev = device_add_child(self, "usbus", -1);
308 if (sc->sc_bus.bdev == NULL) {
309 device_printf(self, "Could not add USB device\n");
312 device_set_ivars(sc->sc_bus.bdev, &sc->sc_bus);
314 sprintf(sc->sc_vendor, "0x%04x", pci_get_vendor(self));
316 if (sc->sc_irq_res != NULL) {
317 err = bus_setup_intr(self, sc->sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE,
318 NULL, (driver_intr_t *)xhci_interrupt, sc, &sc->sc_intr_hdl);
320 bus_release_resource(self, SYS_RES_IRQ,
321 rman_get_rid(sc->sc_irq_res), sc->sc_irq_res);
322 sc->sc_irq_res = NULL;
323 pci_release_msi(self);
324 device_printf(self, "Could not setup IRQ, err=%d\n", err);
325 sc->sc_intr_hdl = NULL;
328 if (sc->sc_irq_res == NULL || sc->sc_intr_hdl == NULL) {
329 if (xhci_use_polling() != 0) {
330 device_printf(self, "Interrupt polling at %dHz\n", hz);
331 USB_BUS_LOCK(&sc->sc_bus);
332 xhci_interrupt_poll(sc);
333 USB_BUS_UNLOCK(&sc->sc_bus);
338 xhci_pci_take_controller(self);
340 err = xhci_halt_controller(sc);
343 err = xhci_start_controller(sc);
346 err = device_probe_and_attach(sc->sc_bus.bdev);
349 device_printf(self, "XHCI halt/start/probe failed err=%d\n", err);
355 xhci_pci_detach(self);
360 xhci_pci_detach(device_t self)
362 struct xhci_softc *sc = device_get_softc(self);
364 /* during module unload there are lots of children leftover */
365 device_delete_children(self);
367 usb_callout_drain(&sc->sc_callout);
368 xhci_halt_controller(sc);
369 xhci_reset_controller(sc);
371 pci_disable_busmaster(self);
373 if (sc->sc_irq_res && sc->sc_intr_hdl) {
374 bus_teardown_intr(self, sc->sc_irq_res, sc->sc_intr_hdl);
375 sc->sc_intr_hdl = NULL;
377 if (sc->sc_irq_res) {
378 bus_release_resource(self, SYS_RES_IRQ,
379 rman_get_rid(sc->sc_irq_res), sc->sc_irq_res);
380 sc->sc_irq_res = NULL;
381 pci_release_msi(self);
384 bus_release_resource(self, SYS_RES_MEMORY, PCI_XHCI_CBMEM,
386 sc->sc_io_res = NULL;
388 if (sc->sc_msix_res) {
389 bus_release_resource(self, SYS_RES_MEMORY,
390 rman_get_rid(sc->sc_msix_res), sc->sc_msix_res);
391 sc->sc_msix_res = NULL;
400 xhci_pci_take_controller(device_t self)
402 struct xhci_softc *sc = device_get_softc(self);
409 cparams = XREAD4(sc, capa, XHCI_HCSPARAMS0);
413 /* Synchronise with the BIOS if it owns the controller. */
414 for (eecp = XHCI_HCS0_XECP(cparams) << 2; eecp != 0 && XHCI_XECP_NEXT(eec);
415 eecp += XHCI_XECP_NEXT(eec) << 2) {
416 eec = XREAD4(sc, capa, eecp);
418 if (XHCI_XECP_ID(eec) != XHCI_ID_USB_LEGACY)
420 bios_sem = XREAD1(sc, capa, eecp +
424 device_printf(sc->sc_bus.bdev, "waiting for BIOS "
425 "to give up control\n");
426 XWRITE1(sc, capa, eecp +
427 XHCI_XECP_OS_SEM, 1);
430 bios_sem = XREAD1(sc, capa, eecp +
436 device_printf(sc->sc_bus.bdev,
437 "timed out waiting for BIOS\n");
440 usb_pause_mtx(NULL, hz / 100); /* wait 10ms */