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/cdefs.h> 29 __FBSDID("$FreeBSD$"); 30 31 #include <sys/param.h> 32 #include <sys/kernel.h> 33 #include <sys/bus.h> 34 #include <sys/callout.h> 35 #include <sys/condvar.h> 36 #include <sys/module.h> 37 38 #include <dev/ofw/ofw_bus_subr.h> 39 40 #include <dev/usb/usb.h> 41 #include <dev/usb/usbdi.h> 42 43 #include <dev/usb/usb_busdma.h> 44 #include <dev/usb/usb_process.h> 45 46 #include <dev/usb/usb_controller.h> 47 #include <dev/usb/usb_bus.h> 48 49 #include <dev/usb/controller/dwc_otg.h> 50 #include <dev/usb/controller/dwc_otg_fdt.h> 51 52 #include <arm/broadcom/bcm2835/bcm2835_mbox_prop.h> 53 54 static struct ofw_compat_data compat_data[] = { 55 {"broadcom,bcm2835-usb", 1}, 56 {"brcm,bcm2835-usb", 1}, 57 {"brcm,bcm2708-usb", 1}, 58 {NULL, 0} 59 }; 60 61 static device_probe_t bcm283x_dwc_otg_probe; 62 static device_attach_t bcm283x_dwc_otg_attach; 63 64 static int 65 bcm283x_dwc_otg_probe(device_t dev) 66 { 67 68 if (!ofw_bus_status_okay(dev)) 69 return (ENXIO); 70 71 if (ofw_bus_search_compatible(dev, compat_data)->ocd_data == 0) 72 return (ENXIO); 73 74 device_set_desc(dev, "DWC OTG 2.0 integrated USB controller (bcm283x)"); 75 76 return (BUS_PROBE_VENDOR); 77 } 78 79 static int 80 bcm283x_dwc_otg_attach(device_t dev) 81 { 82 int err; 83 84 err = bcm2835_mbox_set_power_state(BCM2835_MBOX_POWER_ID_USB_HCD, TRUE); 85 if (err) 86 device_printf(dev, "failed to set power state, err=%d\n", err); 87 88 return (dwc_otg_attach(dev)); 89 } 90 91 static device_method_t bcm283x_dwc_otg_methods[] = { 92 /* bus interface */ 93 DEVMETHOD(device_probe, bcm283x_dwc_otg_probe), 94 DEVMETHOD(device_attach, bcm283x_dwc_otg_attach), 95 96 DEVMETHOD_END 97 }; 98 99 static devclass_t bcm283x_dwc_otg_devclass; 100 101 DEFINE_CLASS_1(bcm283x_dwcotg, bcm283x_dwc_otg_driver, bcm283x_dwc_otg_methods, 102 sizeof(struct dwc_otg_fdt_softc), dwc_otg_driver); 103 DRIVER_MODULE(bcm283x_dwcotg, simplebus, bcm283x_dwc_otg_driver, 104 bcm283x_dwc_otg_devclass, 0, 0); 105 MODULE_DEPEND(bcm283x_dwcotg, usb, 1, 1, 1); 106