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 X399 USB 3.0 controller");
105 return ("AMD 300 Series USB 3.0 controller");
107 return ("AMD FCH USB 3.0 controller");
110 return ("NEC uPD720200 USB 3.0 controller");
112 return ("NEC uPD720202 USB 3.0 controller");
115 return ("Fresco Logic FL1000G USB 3.0 controller");
117 return ("Fresco Logic FL1100 USB 3.0 controller");
120 return ("ASMedia ASM1042 USB 3.0 controller");
122 return ("ASMedia ASM1042A USB 3.0 controller");
125 return ("Intel BayTrail USB 3.0 controller");
127 return ("Intel Denverton USB 3.0 controller");
130 return ("Intel Panther Point USB 3.0 controller");
132 return ("Intel Braswell USB 3.0 controller");
134 return ("Intel Apollo Lake USB 3.0 controller");
136 return ("Intel Lynx Point USB 3.0 controller");
138 return ("Intel Wildcat Point USB 3.0 controller");
140 return ("Intel Wellsburg USB 3.0 controller");
142 return ("Broadwell Integrated PCH-LP chipset USB 3.0 controller");
144 return ("Intel Sunrise Point-LP USB 3.0 controller");
146 return ("Intel Sunrise Point USB 3.0 controller");
148 return ("Intel Lewisburg USB 3.0 controller");
150 return ("Intel Union Point USB 3.0 controller");
153 return ("Cavium ThunderX USB 3.0 controller");
159 if ((pci_get_class(self) == PCIC_SERIALBUS)
160 && (pci_get_subclass(self) == PCIS_SERIALBUS_USB)
161 && (pci_get_progif(self) == PCIP_SERIALBUS_USB_XHCI)) {
162 return ("XHCI (generic) USB 3.0 controller");
164 return (NULL); /* dunno */
168 xhci_pci_probe(device_t self)
170 const char *desc = xhci_pci_match(self);
173 device_set_desc(self, desc);
174 return (BUS_PROBE_DEFAULT);
180 static int xhci_use_msi = 1;
181 TUNABLE_INT("hw.usb.xhci.msi", &xhci_use_msi);
182 static int xhci_use_msix = 1;
183 TUNABLE_INT("hw.usb.xhci.msix", &xhci_use_msix);
186 xhci_interrupt_poll(void *_sc)
188 struct xhci_softc *sc = _sc;
189 USB_BUS_UNLOCK(&sc->sc_bus);
191 USB_BUS_LOCK(&sc->sc_bus);
192 usb_callout_reset(&sc->sc_callout, 1, (void *)&xhci_interrupt_poll, sc);
196 xhci_pci_port_route(device_t self, uint32_t set, uint32_t clear)
202 temp = pci_read_config(self, PCI_XHCI_INTEL_USB3_PSSEN, 4) |
203 pci_read_config(self, PCI_XHCI_INTEL_XUSB2PR, 4);
208 /* Don't set bits which the hardware doesn't support */
209 usb3_mask = pci_read_config(self, PCI_XHCI_INTEL_USB3PRM, 4);
210 usb2_mask = pci_read_config(self, PCI_XHCI_INTEL_USB2PRM, 4);
212 pci_write_config(self, PCI_XHCI_INTEL_USB3_PSSEN, temp & usb3_mask, 4);
213 pci_write_config(self, PCI_XHCI_INTEL_XUSB2PR, temp & usb2_mask, 4);
215 device_printf(self, "Port routing mask set to 0x%08x\n", temp);
221 xhci_pci_attach(device_t self)
223 struct xhci_softc *sc = device_get_softc(self);
224 int count, err, msix_table, rid;
226 uint8_t usedma32 = 0;
228 rid = PCI_XHCI_CBMEM;
229 sc->sc_io_res = bus_alloc_resource_any(self, SYS_RES_MEMORY, &rid,
231 if (!sc->sc_io_res) {
232 device_printf(self, "Could not map memory\n");
235 sc->sc_io_tag = rman_get_bustag(sc->sc_io_res);
236 sc->sc_io_hdl = rman_get_bushandle(sc->sc_io_res);
237 sc->sc_io_size = rman_get_size(sc->sc_io_res);
239 switch (pci_get_devid(self)) {
240 case 0x01941033: /* NEC uPD720200 USB 3.0 controller */
241 case 0x00141912: /* NEC uPD720201 USB 3.0 controller */
242 /* Don't use 64-bit DMA on these controllers. */
245 case 0x10001b73: /* FL1000G */
246 /* Fresco Logic host doesn't support MSI. */
249 case 0x0f358086: /* BayTrail */
250 case 0x9c318086: /* Panther Point */
251 case 0x1e318086: /* Panther Point */
252 case 0x8c318086: /* Lynx Point */
253 case 0x8cb18086: /* Wildcat Point */
254 case 0x9cb18086: /* Broadwell Mobile Integrated */
256 * On Intel chipsets, reroute ports from EHCI to XHCI
257 * controller and use a different IMOD value.
259 sc->sc_port_route = &xhci_pci_port_route;
260 sc->sc_imod_default = XHCI_IMOD_DEFAULT_LP;
265 if (xhci_init(sc, self, usedma32)) {
266 device_printf(self, "Could not initialize softc\n");
267 bus_release_resource(self, SYS_RES_MEMORY, PCI_XHCI_CBMEM,
272 pci_enable_busmaster(self);
274 usb_callout_init_mtx(&sc->sc_callout, &sc->sc_bus.bus_mtx, 0);
277 if (xhci_use_msix && (msix_table = pci_msix_table_bar(self)) >= 0) {
278 sc->sc_msix_res = bus_alloc_resource_any(self, SYS_RES_MEMORY,
279 &msix_table, RF_ACTIVE);
280 if (sc->sc_msix_res == NULL) {
281 /* May not be enabled */
283 "Unable to map MSI-X table \n");
286 if (pci_alloc_msix(self, &count) == 0) {
288 device_printf(self, "MSI-X enabled\n");
291 bus_release_resource(self, SYS_RES_MEMORY,
292 msix_table, sc->sc_msix_res);
293 sc->sc_msix_res = NULL;
297 if (rid == 0 && xhci_use_msi && usemsi) {
299 if (pci_alloc_msi(self, &count) == 0) {
301 device_printf(self, "MSI enabled\n");
305 sc->sc_irq_res = bus_alloc_resource_any(self, SYS_RES_IRQ, &rid,
306 RF_ACTIVE | (rid != 0 ? 0 : RF_SHAREABLE));
307 if (sc->sc_irq_res == NULL) {
308 pci_release_msi(self);
309 device_printf(self, "Could not allocate IRQ\n");
310 /* goto error; FALLTHROUGH - use polling */
312 sc->sc_bus.bdev = device_add_child(self, "usbus", -1);
313 if (sc->sc_bus.bdev == NULL) {
314 device_printf(self, "Could not add USB device\n");
317 device_set_ivars(sc->sc_bus.bdev, &sc->sc_bus);
319 sprintf(sc->sc_vendor, "0x%04x", pci_get_vendor(self));
321 if (sc->sc_irq_res != NULL) {
322 err = bus_setup_intr(self, sc->sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE,
323 NULL, (driver_intr_t *)xhci_interrupt, sc, &sc->sc_intr_hdl);
325 bus_release_resource(self, SYS_RES_IRQ,
326 rman_get_rid(sc->sc_irq_res), sc->sc_irq_res);
327 sc->sc_irq_res = NULL;
328 pci_release_msi(self);
329 device_printf(self, "Could not setup IRQ, err=%d\n", err);
330 sc->sc_intr_hdl = NULL;
333 if (sc->sc_irq_res == NULL || sc->sc_intr_hdl == NULL) {
334 if (xhci_use_polling() != 0) {
335 device_printf(self, "Interrupt polling at %dHz\n", hz);
336 USB_BUS_LOCK(&sc->sc_bus);
337 xhci_interrupt_poll(sc);
338 USB_BUS_UNLOCK(&sc->sc_bus);
343 xhci_pci_take_controller(self);
345 err = xhci_halt_controller(sc);
348 err = xhci_start_controller(sc);
351 err = device_probe_and_attach(sc->sc_bus.bdev);
354 device_printf(self, "XHCI halt/start/probe failed err=%d\n", err);
360 xhci_pci_detach(self);
365 xhci_pci_detach(device_t self)
367 struct xhci_softc *sc = device_get_softc(self);
369 /* during module unload there are lots of children leftover */
370 device_delete_children(self);
372 usb_callout_drain(&sc->sc_callout);
373 xhci_halt_controller(sc);
374 xhci_reset_controller(sc);
376 pci_disable_busmaster(self);
378 if (sc->sc_irq_res && sc->sc_intr_hdl) {
379 bus_teardown_intr(self, sc->sc_irq_res, sc->sc_intr_hdl);
380 sc->sc_intr_hdl = NULL;
382 if (sc->sc_irq_res) {
383 bus_release_resource(self, SYS_RES_IRQ,
384 rman_get_rid(sc->sc_irq_res), sc->sc_irq_res);
385 sc->sc_irq_res = NULL;
386 pci_release_msi(self);
389 bus_release_resource(self, SYS_RES_MEMORY, PCI_XHCI_CBMEM,
391 sc->sc_io_res = NULL;
393 if (sc->sc_msix_res) {
394 bus_release_resource(self, SYS_RES_MEMORY,
395 rman_get_rid(sc->sc_msix_res), sc->sc_msix_res);
396 sc->sc_msix_res = NULL;
405 xhci_pci_take_controller(device_t self)
407 struct xhci_softc *sc = device_get_softc(self);
414 cparams = XREAD4(sc, capa, XHCI_HCSPARAMS0);
418 /* Synchronise with the BIOS if it owns the controller. */
419 for (eecp = XHCI_HCS0_XECP(cparams) << 2; eecp != 0 && XHCI_XECP_NEXT(eec);
420 eecp += XHCI_XECP_NEXT(eec) << 2) {
421 eec = XREAD4(sc, capa, eecp);
423 if (XHCI_XECP_ID(eec) != XHCI_ID_USB_LEGACY)
425 bios_sem = XREAD1(sc, capa, eecp +
429 device_printf(sc->sc_bus.bdev, "waiting for BIOS "
430 "to give up control\n");
431 XWRITE1(sc, capa, eecp +
432 XHCI_XECP_OS_SEM, 1);
435 bios_sem = XREAD1(sc, capa, eecp +
441 device_printf(sc->sc_bus.bdev,
442 "timed out waiting for BIOS\n");
445 usb_pause_mtx(NULL, hz / 100); /* wait 10ms */