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/usb/usb.h>
50 #include <dev/usb/usbdi.h>
52 #include <dev/usb/usb_core.h>
53 #include <dev/usb/usb_busdma.h>
54 #include <dev/usb/usb_process.h>
55 #include <dev/usb/usb_util.h>
57 #include <dev/usb/usb_controller.h>
58 #include <dev/usb/usb_bus.h>
60 #include <dev/usb/controller/dwc_otg.h>
62 static device_probe_t dwc_otg_probe;
63 static device_attach_t dwc_otg_attach;
64 static device_detach_t dwc_otg_detach;
66 struct dwc_otg_super_softc {
67 struct dwc_otg_softc sc_otg; /* must be first */
71 dwc_otg_probe(device_t dev)
73 device_set_desc(dev, "DWC OTG 2.0 integrated USB controller");
78 dwc_otg_attach(device_t dev)
80 struct dwc_otg_super_softc *sc = device_get_softc(dev);
84 /* initialise some bus fields */
85 sc->sc_otg.sc_bus.parent = dev;
86 sc->sc_otg.sc_bus.devices = sc->sc_otg.sc_devices;
87 sc->sc_otg.sc_bus.devices_max = DWC_OTG_MAX_DEVICES;
89 /* get all DMA memory */
90 if (usb_bus_mem_alloc_all(&sc->sc_otg.sc_bus,
91 USB_GET_DMA_TAG(dev), NULL)) {
95 sc->sc_otg.sc_io_res =
96 bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, RF_ACTIVE);
98 if (!(sc->sc_otg.sc_io_res)) {
102 sc->sc_otg.sc_io_tag = rman_get_bustag(sc->sc_otg.sc_io_res);
103 sc->sc_otg.sc_io_hdl = rman_get_bushandle(sc->sc_otg.sc_io_res);
104 sc->sc_otg.sc_io_size = rman_get_size(sc->sc_otg.sc_io_res);
107 sc->sc_otg.sc_irq_res =
108 bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE);
109 if (sc->sc_otg.sc_irq_res == NULL)
112 sc->sc_otg.sc_bus.bdev = device_add_child(dev, "usbus", -1);
113 if (sc->sc_otg.sc_bus.bdev == NULL)
116 device_set_ivars(sc->sc_otg.sc_bus.bdev, &sc->sc_otg.sc_bus);
118 err = bus_setup_intr(dev, sc->sc_otg.sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE,
119 NULL, (driver_intr_t *)dwc_otg_interrupt, sc, &sc->sc_otg.sc_intr_hdl);
121 sc->sc_otg.sc_intr_hdl = NULL;
124 err = dwc_otg_init(&sc->sc_otg);
126 err = device_probe_and_attach(sc->sc_otg.sc_bus.bdev);
138 dwc_otg_detach(device_t dev)
140 struct dwc_otg_super_softc *sc = device_get_softc(dev);
144 if (sc->sc_otg.sc_bus.bdev) {
145 bdev = sc->sc_otg.sc_bus.bdev;
147 device_delete_child(dev, bdev);
149 /* during module unload there are lots of children leftover */
150 device_delete_children(dev);
152 if (sc->sc_otg.sc_irq_res && sc->sc_otg.sc_intr_hdl) {
154 * only call dwc_otg_uninit() after dwc_otg_init()
156 dwc_otg_uninit(&sc->sc_otg);
158 err = bus_teardown_intr(dev, sc->sc_otg.sc_irq_res,
159 sc->sc_otg.sc_intr_hdl);
160 sc->sc_otg.sc_intr_hdl = NULL;
162 /* free IRQ channel, if any */
163 if (sc->sc_otg.sc_irq_res) {
164 bus_release_resource(dev, SYS_RES_IRQ, 0,
165 sc->sc_otg.sc_irq_res);
166 sc->sc_otg.sc_irq_res = NULL;
168 /* free memory resource, if any */
169 if (sc->sc_otg.sc_io_res) {
170 bus_release_resource(dev, SYS_RES_MEMORY, 0,
171 sc->sc_otg.sc_io_res);
172 sc->sc_otg.sc_io_res = NULL;
174 usb_bus_mem_free_all(&sc->sc_otg.sc_bus, NULL);
179 static device_method_t dwc_otg_methods[] = {
180 /* Device interface */
181 DEVMETHOD(device_probe, dwc_otg_probe),
182 DEVMETHOD(device_attach, dwc_otg_attach),
183 DEVMETHOD(device_detach, dwc_otg_detach),
184 DEVMETHOD(device_suspend, bus_generic_suspend),
185 DEVMETHOD(device_resume, bus_generic_resume),
186 DEVMETHOD(device_shutdown, bus_generic_shutdown),
191 static driver_t dwc_otg_driver = {
193 .methods = dwc_otg_methods,
194 .size = sizeof(struct dwc_otg_super_softc),
197 static devclass_t dwc_otg_devclass;
199 DRIVER_MODULE(dwcotg, atmelarm, dwc_otg_driver, dwc_otg_devclass, 0, 0);
200 MODULE_DEPEND(dwcotg, usb, 1, 1, 1);