2 * Copyright (c) 2012 Hans Petter Selasky. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
16 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
19 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 #include <sys/cdefs.h>
27 __FBSDID("$FreeBSD$");
29 #include <sys/stdint.h>
30 #include <sys/stddef.h>
31 #include <sys/param.h>
32 #include <sys/queue.h>
33 #include <sys/types.h>
34 #include <sys/systm.h>
35 #include <sys/kernel.h>
37 #include <sys/module.h>
39 #include <sys/mutex.h>
40 #include <sys/condvar.h>
41 #include <sys/sysctl.h>
43 #include <sys/unistd.h>
44 #include <sys/callout.h>
45 #include <sys/malloc.h>
49 #include <dev/fdt/fdt_common.h>
50 #include <dev/ofw/openfirm.h>
51 #include <dev/ofw/ofw_bus.h>
52 #include <dev/ofw/ofw_bus_subr.h>
54 #include <dev/usb/usb.h>
55 #include <dev/usb/usbdi.h>
57 #include <dev/usb/usb_core.h>
58 #include <dev/usb/usb_busdma.h>
59 #include <dev/usb/usb_process.h>
60 #include <dev/usb/usb_util.h>
62 #include <dev/usb/usb_controller.h>
63 #include <dev/usb/usb_bus.h>
65 #include <dev/usb/controller/dwc_otg.h>
67 static device_probe_t dwc_otg_probe;
68 static device_attach_t dwc_otg_attach;
69 static device_detach_t dwc_otg_detach;
71 struct dwc_otg_super_softc {
72 struct dwc_otg_softc sc_otg; /* must be first */
76 dwc_otg_probe(device_t dev)
79 if (!ofw_bus_status_okay(dev))
82 if (!ofw_bus_is_compatible(dev, "synopsys,designware-hs-otg2"))
85 device_set_desc(dev, "DWC OTG 2.0 integrated USB controller");
91 dwc_otg_attach(device_t dev)
93 struct dwc_otg_super_softc *sc = device_get_softc(dev);
97 /* initialise some bus fields */
98 sc->sc_otg.sc_bus.parent = dev;
99 sc->sc_otg.sc_bus.devices = sc->sc_otg.sc_devices;
100 sc->sc_otg.sc_bus.devices_max = DWC_OTG_MAX_DEVICES;
101 sc->sc_otg.sc_bus.dma_bits = 32;
103 /* get all DMA memory */
104 if (usb_bus_mem_alloc_all(&sc->sc_otg.sc_bus,
105 USB_GET_DMA_TAG(dev), NULL)) {
109 sc->sc_otg.sc_io_res =
110 bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, RF_ACTIVE);
112 if (!(sc->sc_otg.sc_io_res)) {
116 sc->sc_otg.sc_io_tag = rman_get_bustag(sc->sc_otg.sc_io_res);
117 sc->sc_otg.sc_io_hdl = rman_get_bushandle(sc->sc_otg.sc_io_res);
118 sc->sc_otg.sc_io_size = rman_get_size(sc->sc_otg.sc_io_res);
121 sc->sc_otg.sc_irq_res =
122 bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE);
123 if (sc->sc_otg.sc_irq_res == NULL)
126 sc->sc_otg.sc_bus.bdev = device_add_child(dev, "usbus", -1);
127 if (sc->sc_otg.sc_bus.bdev == NULL)
130 device_set_ivars(sc->sc_otg.sc_bus.bdev, &sc->sc_otg.sc_bus);
132 err = bus_setup_intr(dev, sc->sc_otg.sc_irq_res, INTR_TYPE_TTY | INTR_MPSAFE,
133 &dwc_otg_filter_interrupt, &dwc_otg_interrupt, sc, &sc->sc_otg.sc_intr_hdl);
135 sc->sc_otg.sc_intr_hdl = NULL;
138 err = dwc_otg_init(&sc->sc_otg);
140 err = device_probe_and_attach(sc->sc_otg.sc_bus.bdev);
154 dwc_otg_detach(device_t dev)
156 struct dwc_otg_super_softc *sc = device_get_softc(dev);
160 if (sc->sc_otg.sc_bus.bdev) {
161 bdev = sc->sc_otg.sc_bus.bdev;
163 device_delete_child(dev, bdev);
165 /* during module unload there are lots of children leftover */
166 device_delete_children(dev);
168 if (sc->sc_otg.sc_irq_res && sc->sc_otg.sc_intr_hdl) {
170 * only call dwc_otg_uninit() after dwc_otg_init()
172 dwc_otg_uninit(&sc->sc_otg);
174 err = bus_teardown_intr(dev, sc->sc_otg.sc_irq_res,
175 sc->sc_otg.sc_intr_hdl);
176 sc->sc_otg.sc_intr_hdl = NULL;
178 /* free IRQ channel, if any */
179 if (sc->sc_otg.sc_irq_res) {
180 bus_release_resource(dev, SYS_RES_IRQ, 0,
181 sc->sc_otg.sc_irq_res);
182 sc->sc_otg.sc_irq_res = NULL;
184 /* free memory resource, if any */
185 if (sc->sc_otg.sc_io_res) {
186 bus_release_resource(dev, SYS_RES_MEMORY, 0,
187 sc->sc_otg.sc_io_res);
188 sc->sc_otg.sc_io_res = NULL;
190 usb_bus_mem_free_all(&sc->sc_otg.sc_bus, NULL);
195 static device_method_t dwc_otg_methods[] = {
196 /* Device interface */
197 DEVMETHOD(device_probe, dwc_otg_probe),
198 DEVMETHOD(device_attach, dwc_otg_attach),
199 DEVMETHOD(device_detach, dwc_otg_detach),
200 DEVMETHOD(device_suspend, bus_generic_suspend),
201 DEVMETHOD(device_resume, bus_generic_resume),
202 DEVMETHOD(device_shutdown, bus_generic_shutdown),
207 static driver_t dwc_otg_driver = {
209 .methods = dwc_otg_methods,
210 .size = sizeof(struct dwc_otg_super_softc),
213 static devclass_t dwc_otg_devclass;
215 DRIVER_MODULE(dwcotg, simplebus, dwc_otg_driver, dwc_otg_devclass, 0, 0);
216 MODULE_DEPEND(dwcotg, usb, 1, 1, 1);