xref: /freebsd/sys/dev/usb/controller/generic_ehci_acpi.c (revision e6bfd18d21b225af6a0ed67ceeaf1293b7b9eba5)
1 /*-
2  * Copyright (c) 2012 Ganbold Tsagaankhuu <ganbold@freebsd.org>
3  * Copyright (c) 2016 The FreeBSD Foundation
4  * All rights reserved.
5  *
6  * This software was developed by Andrew Turner under
7  * sponsorship from the FreeBSD Foundation.
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 AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28  * SUCH DAMAGE.
29  */
30 
31 #include <sys/cdefs.h>
32 __FBSDID("$FreeBSD$");
33 
34 #include "opt_bus.h"
35 
36 #include <sys/param.h>
37 #include <sys/systm.h>
38 #include <sys/bus.h>
39 #include <sys/condvar.h>
40 #include <sys/kernel.h>
41 #include <sys/module.h>
42 
43 #include <dev/usb/usb.h>
44 #include <dev/usb/usbdi.h>
45 
46 #include <dev/usb/usb_core.h>
47 #include <dev/usb/usb_busdma.h>
48 #include <dev/usb/usb_process.h>
49 
50 #include <dev/usb/usb_controller.h>
51 #include <dev/usb/usb_bus.h>
52 #include <dev/usb/controller/ehci.h>
53 
54 #include <contrib/dev/acpica/include/acpi.h>
55 #include <contrib/dev/acpica/include/accommon.h>
56 #include <dev/acpica/acpivar.h>
57 
58 #include "generic_ehci.h"
59 
60 static int
61 generic_ehci_acpi_probe(device_t self)
62 {
63 	ACPI_HANDLE h;
64 
65 	if ((h = acpi_get_handle(self)) == NULL ||
66 	    !acpi_MatchHid(h, "PNP0D20"))
67 		return (ENXIO);
68 
69 	device_set_desc(self, "Generic EHCI Controller");
70 	return (BUS_PROBE_DEFAULT);
71 }
72 
73 static device_method_t ehci_acpi_methods[] = {
74 	/* Device interface */
75 	DEVMETHOD(device_probe,		generic_ehci_acpi_probe),
76 
77 	DEVMETHOD_END
78 };
79 
80 DEFINE_CLASS_1(ehci, ehci_acpi_driver, ehci_acpi_methods,
81     sizeof(ehci_softc_t), generic_ehci_driver);
82 
83 DRIVER_MODULE(ehci, acpi, ehci_acpi_driver, 0, 0);
84 MODULE_DEPEND(ehci, usb, 1, 1, 1);
85