1 /*
2 * Copyright 2015 Andrew Turner.
3 * 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 are
7 * met:
8 *
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.
14 *
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
18 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE
19 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
20 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
21 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
22 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
24 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28 #include <sys/param.h>
29 #include <sys/kernel.h>
30 #include <sys/bus.h>
31 #include <sys/callout.h>
32 #include <sys/condvar.h>
33 #include <sys/module.h>
34
35 #include <dev/ofw/ofw_bus_subr.h>
36
37 #include <dev/usb/usb.h>
38 #include <dev/usb/usbdi.h>
39
40 #include <dev/usb/usb_busdma.h>
41 #include <dev/usb/usb_process.h>
42
43 #include <dev/usb/usb_controller.h>
44 #include <dev/usb/usb_bus.h>
45
46 #include <dev/usb/controller/dwc_otg.h>
47 #include <dev/usb/controller/dwc_otg_fdt.h>
48
49 #include <arm/broadcom/bcm2835/bcm2835_mbox_prop.h>
50
51 static struct ofw_compat_data compat_data[] = {
52 {"broadcom,bcm2835-usb", 1},
53 {"brcm,bcm2835-usb", 1},
54 {"brcm,bcm2708-usb", 1},
55 {NULL, 0}
56 };
57
58 static device_probe_t bcm283x_dwc_otg_probe;
59 static device_attach_t bcm283x_dwc_otg_attach;
60
61 static int
bcm283x_dwc_otg_probe(device_t dev)62 bcm283x_dwc_otg_probe(device_t dev)
63 {
64
65 if (!ofw_bus_status_okay(dev))
66 return (ENXIO);
67
68 if (ofw_bus_search_compatible(dev, compat_data)->ocd_data == 0)
69 return (ENXIO);
70
71 device_set_desc(dev, "DWC OTG 2.0 integrated USB controller (bcm283x)");
72
73 return (BUS_PROBE_VENDOR);
74 }
75
76 static int
bcm283x_dwc_otg_attach(device_t dev)77 bcm283x_dwc_otg_attach(device_t dev)
78 {
79 int err;
80
81 err = bcm2835_mbox_set_power_state(BCM2835_MBOX_POWER_ID_USB_HCD, TRUE);
82 if (err)
83 device_printf(dev, "failed to set power state, err=%d\n", err);
84
85 return (dwc_otg_attach(dev));
86 }
87
88 static device_method_t bcm283x_dwc_otg_methods[] = {
89 /* bus interface */
90 DEVMETHOD(device_probe, bcm283x_dwc_otg_probe),
91 DEVMETHOD(device_attach, bcm283x_dwc_otg_attach),
92
93 DEVMETHOD_END
94 };
95
96 DEFINE_CLASS_1(bcm283x_dwcotg, bcm283x_dwc_otg_driver, bcm283x_dwc_otg_methods,
97 sizeof(struct dwc_otg_fdt_softc), dwc_otg_driver);
98 DRIVER_MODULE(bcm283x_dwcotg, simplebus, bcm283x_dwc_otg_driver, 0, 0);
99 MODULE_DEPEND(bcm283x_dwcotg, usb, 1, 1, 1);
100