xref: /freebsd/sys/dev/usb/controller/uhci_pci.c (revision aa64588d28258aef88cc33b8043112e8856948d0)
1 /*-
2  * Copyright (c) 1998 The NetBSD Foundation, Inc.
3  * All rights reserved.
4  *
5  * This code is derived from software contributed to The NetBSD Foundation
6  * by Lennart Augustsson (augustss@carlstedt.se) at
7  * Carlstedt Research & Technology.
8  *
9  * Redistribution and use in source and binary forms, with or without
10  * modification, are permitted provided that the following conditions
11  * are met:
12  * 1. Redistributions of source code must retain the above copyright
13  *    notice, this list of conditions and the following disclaimer.
14  * 2. Redistributions in binary form must reproduce the above copyright
15  *    notice, this list of conditions and the following disclaimer in the
16  *    documentation and/or other materials provided with the distribution.
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
19  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
20  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
21  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
22  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28  * POSSIBILITY OF SUCH DAMAGE.
29  */
30 
31 #include <sys/cdefs.h>
32 __FBSDID("$FreeBSD$");
33 
34 /* Universal Host Controller Interface
35  *
36  * UHCI spec: http://www.intel.com/
37  */
38 
39 /* The low level controller code for UHCI has been split into
40  * PCI probes and UHCI specific code. This was done to facilitate the
41  * sharing of code between *BSD's
42  */
43 
44 #include <sys/stdint.h>
45 #include <sys/stddef.h>
46 #include <sys/param.h>
47 #include <sys/queue.h>
48 #include <sys/types.h>
49 #include <sys/systm.h>
50 #include <sys/kernel.h>
51 #include <sys/bus.h>
52 #include <sys/linker_set.h>
53 #include <sys/module.h>
54 #include <sys/lock.h>
55 #include <sys/mutex.h>
56 #include <sys/condvar.h>
57 #include <sys/sysctl.h>
58 #include <sys/sx.h>
59 #include <sys/unistd.h>
60 #include <sys/callout.h>
61 #include <sys/malloc.h>
62 #include <sys/priv.h>
63 
64 #include <dev/usb/usb.h>
65 #include <dev/usb/usbdi.h>
66 
67 #include <dev/usb/usb_core.h>
68 #include <dev/usb/usb_busdma.h>
69 #include <dev/usb/usb_process.h>
70 #include <dev/usb/usb_util.h>
71 #include <dev/usb/usb_debug.h>
72 
73 #include <dev/usb/usb_controller.h>
74 #include <dev/usb/usb_bus.h>
75 #include <dev/usb/usb_pci.h>
76 #include <dev/usb/controller/uhci.h>
77 #include <dev/usb/controller/uhcireg.h>
78 
79 #define	PCI_UHCI_VENDORID_INTEL		0x8086
80 #define	PCI_UHCI_VENDORID_VIA		0x1106
81 
82 /* PIIX4E has no separate stepping */
83 
84 static device_probe_t uhci_pci_probe;
85 static device_attach_t uhci_pci_attach;
86 static device_detach_t uhci_pci_detach;
87 static device_suspend_t uhci_pci_suspend;
88 static device_resume_t uhci_pci_resume;
89 
90 static int
91 uhci_pci_suspend(device_t self)
92 {
93 	uhci_softc_t *sc = device_get_softc(self);
94 	int err;
95 
96 	err = bus_generic_suspend(self);
97 	if (err) {
98 		return (err);
99 	}
100 	uhci_suspend(sc);
101 	return (0);
102 }
103 
104 static int
105 uhci_pci_resume(device_t self)
106 {
107 	uhci_softc_t *sc = device_get_softc(self);
108 
109 	pci_write_config(self, PCI_LEGSUP, PCI_LEGSUP_USBPIRQDEN, 2);
110 
111 	uhci_resume(sc);
112 
113 	bus_generic_resume(self);
114 	return (0);
115 }
116 
117 static const char *
118 uhci_pci_match(device_t self)
119 {
120 	uint32_t device_id = pci_get_devid(self);
121 
122 	switch (device_id) {
123 	case 0x26888086:
124 		return ("Intel 631XESB/632XESB/3100 USB controller USB-1");
125 
126 	case 0x26898086:
127 		return ("Intel 631XESB/632XESB/3100 USB controller USB-2");
128 
129 	case 0x268a8086:
130 		return ("Intel 631XESB/632XESB/3100 USB controller USB-3");
131 
132 	case 0x268b8086:
133 		return ("Intel 631XESB/632XESB/3100 USB controller USB-4");
134 
135 	case 0x70208086:
136 		return ("Intel 82371SB (PIIX3) USB controller");
137 
138 	case 0x71128086:
139 		return ("Intel 82371AB/EB (PIIX4) USB controller");
140 
141 	case 0x24128086:
142 		return ("Intel 82801AA (ICH) USB controller");
143 
144 	case 0x24228086:
145 		return ("Intel 82801AB (ICH0) USB controller");
146 
147 	case 0x24428086:
148 		return ("Intel 82801BA/BAM (ICH2) USB controller USB-A");
149 
150 	case 0x24448086:
151 		return ("Intel 82801BA/BAM (ICH2) USB controller USB-B");
152 
153 	case 0x24828086:
154 		return ("Intel 82801CA/CAM (ICH3) USB controller USB-A");
155 
156 	case 0x24848086:
157 		return ("Intel 82801CA/CAM (ICH3) USB controller USB-B");
158 
159 	case 0x24878086:
160 		return ("Intel 82801CA/CAM (ICH3) USB controller USB-C");
161 
162 	case 0x24c28086:
163 		return ("Intel 82801DB (ICH4) USB controller USB-A");
164 
165 	case 0x24c48086:
166 		return ("Intel 82801DB (ICH4) USB controller USB-B");
167 
168 	case 0x24c78086:
169 		return ("Intel 82801DB (ICH4) USB controller USB-C");
170 
171 	case 0x24d28086:
172 		return ("Intel 82801EB (ICH5) USB controller USB-A");
173 
174 	case 0x24d48086:
175 		return ("Intel 82801EB (ICH5) USB controller USB-B");
176 
177 	case 0x24d78086:
178 		return ("Intel 82801EB (ICH5) USB controller USB-C");
179 
180 	case 0x24de8086:
181 		return ("Intel 82801EB (ICH5) USB controller USB-D");
182 
183 	case 0x26588086:
184 		return ("Intel 82801FB/FR/FW/FRW (ICH6) USB controller USB-A");
185 
186 	case 0x26598086:
187 		return ("Intel 82801FB/FR/FW/FRW (ICH6) USB controller USB-B");
188 
189 	case 0x265a8086:
190 		return ("Intel 82801FB/FR/FW/FRW (ICH6) USB controller USB-C");
191 
192 	case 0x265b8086:
193 		return ("Intel 82801FB/FR/FW/FRW (ICH6) USB controller USB-D");
194 
195 	case 0x27c88086:
196 		return ("Intel 82801G (ICH7) USB controller USB-A");
197 	case 0x27c98086:
198 		return ("Intel 82801G (ICH7) USB controller USB-B");
199 	case 0x27ca8086:
200 		return ("Intel 82801G (ICH7) USB controller USB-C");
201 	case 0x27cb8086:
202 		return ("Intel 82801G (ICH7) USB controller USB-D");
203 
204 	case 0x28308086:
205 		return ("Intel 82801H (ICH8) USB controller USB-A");
206 	case 0x28318086:
207 		return ("Intel 82801H (ICH8) USB controller USB-B");
208 	case 0x28328086:
209 		return ("Intel 82801H (ICH8) USB controller USB-C");
210 	case 0x28348086:
211 		return ("Intel 82801H (ICH8) USB controller USB-D");
212 	case 0x28358086:
213 		return ("Intel 82801H (ICH8) USB controller USB-E");
214 	case 0x29348086:
215 		return ("Intel 82801I (ICH9) USB controller");
216 	case 0x29358086:
217 		return ("Intel 82801I (ICH9) USB controller");
218 	case 0x29368086:
219 		return ("Intel 82801I (ICH9) USB controller");
220 	case 0x29378086:
221 		return ("Intel 82801I (ICH9) USB controller");
222 	case 0x29388086:
223 		return ("Intel 82801I (ICH9) USB controller");
224 	case 0x29398086:
225 		return ("Intel 82801I (ICH9) USB controller");
226 	case 0x3a348086:
227 		return ("Intel 82801JI (ICH10) USB controller USB-A");
228 	case 0x3a358086:
229 		return ("Intel 82801JI (ICH10) USB controller USB-B");
230 	case 0x3a368086:
231 		return ("Intel 82801JI (ICH10) USB controller USB-C");
232 	case 0x3a378086:
233 		return ("Intel 82801JI (ICH10) USB controller USB-D");
234 	case 0x3a388086:
235 		return ("Intel 82801JI (ICH10) USB controller USB-E");
236 	case 0x3a398086:
237 		return ("Intel 82801JI (ICH10) USB controller USB-F");
238 
239 	case 0x719a8086:
240 		return ("Intel 82443MX USB controller");
241 
242 	case 0x76028086:
243 		return ("Intel 82372FB/82468GX USB controller");
244 
245 	case 0x30381106:
246 		return ("VIA 83C572 USB controller");
247 
248 	default:
249 		break;
250 	}
251 
252 	if ((pci_get_class(self) == PCIC_SERIALBUS) &&
253 	    (pci_get_subclass(self) == PCIS_SERIALBUS_USB) &&
254 	    (pci_get_progif(self) == PCI_INTERFACE_UHCI)) {
255 		return ("UHCI (generic) USB controller");
256 	}
257 	return (NULL);
258 }
259 
260 static int
261 uhci_pci_probe(device_t self)
262 {
263 	const char *desc = uhci_pci_match(self);
264 
265 	if (desc) {
266 		device_set_desc(self, desc);
267 		return (0);
268 	} else {
269 		return (ENXIO);
270 	}
271 }
272 
273 static int
274 uhci_pci_attach(device_t self)
275 {
276 	uhci_softc_t *sc = device_get_softc(self);
277 	int rid;
278 	int err;
279 
280 	/* initialise some bus fields */
281 	sc->sc_bus.parent = self;
282 	sc->sc_bus.devices = sc->sc_devices;
283 	sc->sc_bus.devices_max = UHCI_MAX_DEVICES;
284 
285 	/* get all DMA memory */
286 	if (usb_bus_mem_alloc_all(&sc->sc_bus, USB_GET_DMA_TAG(self),
287 	    &uhci_iterate_hw_softc)) {
288 		return ENOMEM;
289 	}
290 	sc->sc_dev = self;
291 
292 	pci_enable_busmaster(self);
293 
294 	rid = PCI_UHCI_BASE_REG;
295 	sc->sc_io_res = bus_alloc_resource_any(self, SYS_RES_IOPORT, &rid,
296 	    RF_ACTIVE);
297 	if (!sc->sc_io_res) {
298 		device_printf(self, "Could not map ports\n");
299 		goto error;
300 	}
301 	sc->sc_io_tag = rman_get_bustag(sc->sc_io_res);
302 	sc->sc_io_hdl = rman_get_bushandle(sc->sc_io_res);
303 	sc->sc_io_size = rman_get_size(sc->sc_io_res);
304 
305 	/* disable interrupts */
306 	bus_space_write_2(sc->sc_io_tag, sc->sc_io_hdl, UHCI_INTR, 0);
307 
308 	rid = 0;
309 	sc->sc_irq_res = bus_alloc_resource_any(self, SYS_RES_IRQ, &rid,
310 	    RF_SHAREABLE | RF_ACTIVE);
311 	if (sc->sc_irq_res == NULL) {
312 		device_printf(self, "Could not allocate irq\n");
313 		goto error;
314 	}
315 	sc->sc_bus.bdev = device_add_child(self, "usbus", -1);
316 	if (!sc->sc_bus.bdev) {
317 		device_printf(self, "Could not add USB device\n");
318 		goto error;
319 	}
320 	device_set_ivars(sc->sc_bus.bdev, &sc->sc_bus);
321 
322 	/*
323 	 * uhci_pci_match must never return NULL if uhci_pci_probe
324 	 * succeeded
325 	 */
326 	device_set_desc(sc->sc_bus.bdev, uhci_pci_match(self));
327 	switch (pci_get_vendor(self)) {
328 	case PCI_UHCI_VENDORID_INTEL:
329 		sprintf(sc->sc_vendor, "Intel");
330 		break;
331 	case PCI_UHCI_VENDORID_VIA:
332 		sprintf(sc->sc_vendor, "VIA");
333 		break;
334 	default:
335 		if (bootverbose) {
336 			device_printf(self, "(New UHCI DeviceId=0x%08x)\n",
337 			    pci_get_devid(self));
338 		}
339 		sprintf(sc->sc_vendor, "(0x%04x)", pci_get_vendor(self));
340 	}
341 
342 	switch (pci_read_config(self, PCI_USBREV, 1) & PCI_USB_REV_MASK) {
343 	case PCI_USB_REV_PRE_1_0:
344 		sc->sc_bus.usbrev = USB_REV_PRE_1_0;
345 		break;
346 	case PCI_USB_REV_1_0:
347 		sc->sc_bus.usbrev = USB_REV_1_0;
348 		break;
349 	default:
350 		/* Quirk for Parallels Desktop 4.0 */
351 		device_printf(self, "USB revision is unknown. Assuming v1.1.\n");
352 		sc->sc_bus.usbrev = USB_REV_1_1;
353 		break;
354 	}
355 
356 #if (__FreeBSD_version >= 700031)
357 	err = bus_setup_intr(self, sc->sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE,
358 	    NULL, (driver_intr_t *)uhci_interrupt, sc, &sc->sc_intr_hdl);
359 #else
360 	err = bus_setup_intr(self, sc->sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE,
361 	    (driver_intr_t *)uhci_interrupt, sc, &sc->sc_intr_hdl);
362 #endif
363 
364 	if (err) {
365 		device_printf(self, "Could not setup irq, %d\n", err);
366 		sc->sc_intr_hdl = NULL;
367 		goto error;
368 	}
369 	/*
370 	 * Set the PIRQD enable bit and switch off all the others. We don't
371 	 * want legacy support to interfere with us XXX Does this also mean
372 	 * that the BIOS won't touch the keyboard anymore if it is connected
373 	 * to the ports of the root hub?
374 	 */
375 #ifdef USB_DEBUG
376 	if (pci_read_config(self, PCI_LEGSUP, 2) != PCI_LEGSUP_USBPIRQDEN) {
377 		device_printf(self, "LegSup = 0x%04x\n",
378 		    pci_read_config(self, PCI_LEGSUP, 2));
379 	}
380 #endif
381 	pci_write_config(self, PCI_LEGSUP, PCI_LEGSUP_USBPIRQDEN, 2);
382 
383 	err = uhci_init(sc);
384 	if (!err) {
385 		err = device_probe_and_attach(sc->sc_bus.bdev);
386 	}
387 	if (err) {
388 		device_printf(self, "USB init failed\n");
389 		goto error;
390 	}
391 	return (0);
392 
393 error:
394 	uhci_pci_detach(self);
395 	return (ENXIO);
396 }
397 
398 int
399 uhci_pci_detach(device_t self)
400 {
401 	uhci_softc_t *sc = device_get_softc(self);
402 	device_t bdev;
403 
404 	if (sc->sc_bus.bdev) {
405 		bdev = sc->sc_bus.bdev;
406 		device_detach(bdev);
407 		device_delete_child(self, bdev);
408 	}
409 	/* during module unload there are lots of children leftover */
410 	device_delete_all_children(self);
411 
412 	/*
413 	 * disable interrupts that might have been switched on in
414 	 * uhci_init.
415 	 */
416 	if (sc->sc_io_res) {
417 		USB_BUS_LOCK(&sc->sc_bus);
418 
419 		/* stop the controller */
420 		uhci_reset(sc);
421 
422 		USB_BUS_UNLOCK(&sc->sc_bus);
423 	}
424 	pci_disable_busmaster(self);
425 
426 	if (sc->sc_irq_res && sc->sc_intr_hdl) {
427 		int err = bus_teardown_intr(self, sc->sc_irq_res, sc->sc_intr_hdl);
428 
429 		if (err) {
430 			/* XXX or should we panic? */
431 			device_printf(self, "Could not tear down irq, %d\n",
432 			    err);
433 		}
434 		sc->sc_intr_hdl = NULL;
435 	}
436 	if (sc->sc_irq_res) {
437 		bus_release_resource(self, SYS_RES_IRQ, 0, sc->sc_irq_res);
438 		sc->sc_irq_res = NULL;
439 	}
440 	if (sc->sc_io_res) {
441 		bus_release_resource(self, SYS_RES_IOPORT, PCI_UHCI_BASE_REG,
442 		    sc->sc_io_res);
443 		sc->sc_io_res = NULL;
444 	}
445 	usb_bus_mem_free_all(&sc->sc_bus, &uhci_iterate_hw_softc);
446 
447 	return (0);
448 }
449 
450 static driver_t uhci_driver =
451 {
452 	.name = "uhci",
453 	.methods = (device_method_t[]){
454 		/* device interface */
455 		DEVMETHOD(device_probe, uhci_pci_probe),
456 		DEVMETHOD(device_attach, uhci_pci_attach),
457 		DEVMETHOD(device_detach, uhci_pci_detach),
458 
459 		DEVMETHOD(device_suspend, uhci_pci_suspend),
460 		DEVMETHOD(device_resume, uhci_pci_resume),
461 		DEVMETHOD(device_shutdown, bus_generic_shutdown),
462 
463 		/* Bus interface */
464 		DEVMETHOD(bus_print_child, bus_generic_print_child),
465 		{0, 0}
466 	},
467 	.size = sizeof(struct uhci_softc),
468 };
469 
470 static devclass_t uhci_devclass;
471 
472 DRIVER_MODULE(uhci, pci, uhci_driver, uhci_devclass, 0, 0);
473 MODULE_DEPEND(uhci, usb, 1, 1, 1);
474