5 * Copyright (c) 2009 Hans Petter Selasky. All rights reserved.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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/linker_set.h>
38 #include <sys/module.h>
40 #include <sys/mutex.h>
41 #include <sys/condvar.h>
42 #include <sys/sysctl.h>
44 #include <sys/unistd.h>
45 #include <sys/callout.h>
46 #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>
59 #include <dev/usb/controller/atmegadci.h>
63 static device_probe_t atmegadci_probe;
64 static device_attach_t atmegadci_attach;
65 static device_detach_t atmegadci_detach;
66 static device_shutdown_t atmegadci_shutdown;
68 struct atmegadci_super_softc {
69 struct atmegadci_softc sc_otg; /* must be first */
73 atmegadci_clocks_on(struct usb_bus *bus)
79 atmegadci_clocks_off(struct usb_bus *bus)
85 atmegadci_probe(device_t dev)
87 device_set_desc(dev, "ATMEL OTG integrated USB controller");
92 atmegadci_attach(device_t dev)
94 struct atmegadci_super_softc *sc = device_get_softc(dev);
98 /* setup MUSB OTG USB controller interface softc */
99 sc->sc_otg.sc_clocks_on = &atmegadci_clocks_on;
100 sc->sc_otg.sc_clocks_off = &atmegadci_clocks_off;
102 /* initialise some bus fields */
103 sc->sc_otg.sc_bus.parent = dev;
104 sc->sc_otg.sc_bus.devices = sc->sc_otg.sc_devices;
105 sc->sc_otg.sc_bus.devices_max = ATMEGA_MAX_DEVICES;
107 /* get all DMA memory */
108 if (usb_bus_mem_alloc_all(&sc->sc_otg.sc_bus,
109 USB_GET_DMA_TAG(dev), NULL)) {
113 sc->sc_otg.sc_io_res =
114 bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, RF_ACTIVE);
116 if (!(sc->sc_otg.sc_io_res)) {
120 sc->sc_otg.sc_io_tag = rman_get_bustag(sc->sc_otg.sc_io_res);
121 sc->sc_otg.sc_io_hdl = rman_get_bushandle(sc->sc_otg.sc_io_res);
124 sc->sc_otg.sc_irq_res =
125 bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE);
126 if (!(sc->sc_otg.sc_irq_res)) {
129 sc->sc_otg.sc_bus.bdev = device_add_child(dev, "usbus", -1);
130 if (!(sc->sc_otg.sc_bus.bdev)) {
133 device_set_ivars(sc->sc_otg.sc_bus.bdev, &sc->sc_otg.sc_bus);
135 err = bus_setup_intr(dev, sc->sc_otg.sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE,
136 NULL, (driver_intr_t *)atmegadci_interrupt, sc, &sc->sc_otg.sc_intr_hdl);
138 sc->sc_otg.sc_intr_hdl = NULL;
141 err = atmegadci_init(&sc->sc_otg);
143 err = device_probe_and_attach(sc->sc_otg.sc_bus.bdev);
151 atmegadci_detach(dev);
156 atmegadci_detach(device_t dev)
158 struct atmegadci_super_softc *sc = device_get_softc(dev);
162 if (sc->sc_otg.sc_bus.bdev) {
163 bdev = sc->sc_otg.sc_bus.bdev;
165 device_delete_child(dev, bdev);
167 /* during module unload there are lots of children leftover */
168 device_delete_all_children(dev);
170 if (sc->sc_otg.sc_irq_res && sc->sc_otg.sc_intr_hdl) {
172 * only call atmegadci_uninit() after atmegadci_init()
174 atmegadci_uninit(&sc->sc_otg);
176 err = bus_teardown_intr(dev, sc->sc_otg.sc_irq_res,
177 sc->sc_otg.sc_intr_hdl);
178 sc->sc_otg.sc_intr_hdl = NULL;
180 /* free IRQ channel, if any */
181 if (sc->sc_otg.sc_irq_res) {
182 bus_release_resource(dev, SYS_RES_IRQ, 0,
183 sc->sc_otg.sc_irq_res);
184 sc->sc_otg.sc_irq_res = NULL;
186 /* free memory resource, if any */
187 if (sc->sc_otg.sc_io_res) {
188 bus_release_resource(dev, SYS_RES_MEMORY, 0,
189 sc->sc_otg.sc_io_res);
190 sc->sc_otg.sc_io_res = NULL;
192 usb_bus_mem_free_all(&sc->sc_otg.sc_bus, NULL);
198 atmegadci_shutdown(device_t dev)
200 struct atmegadci_super_softc *sc = device_get_softc(dev);
203 err = bus_generic_shutdown(dev);
207 atmegadci_uninit(&sc->sc_otg);
212 static device_method_t atmegadci_methods[] = {
213 /* Device interface */
214 DEVMETHOD(device_probe, atmegadci_probe),
215 DEVMETHOD(device_attach, atmegadci_attach),
216 DEVMETHOD(device_detach, atmegadci_detach),
217 DEVMETHOD(device_shutdown, atmegadci_shutdown),
220 DEVMETHOD(bus_print_child, bus_generic_print_child),
225 static driver_t atmegadci_driver = {
228 sizeof(struct atmegadci_super_softc),
231 static devclass_t atmegadci_devclass;
233 DRIVER_MODULE(atmegadci, atmelarm, atmegadci_driver, atmegadci_devclass, 0, 0);
234 MODULE_DEPEND(atmegadci, usb, 1, 1, 1);