3 * Copyright (c) 2008 Hans Petter Selasky. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 #include <sys/stdint.h>
28 #include <sys/stddef.h>
29 #include <sys/param.h>
30 #include <sys/queue.h>
31 #include <sys/types.h>
32 #include <sys/systm.h>
33 #include <sys/kernel.h>
35 #include <sys/module.h>
37 #include <sys/mutex.h>
38 #include <sys/condvar.h>
39 #include <sys/sysctl.h>
41 #include <sys/unistd.h>
42 #include <sys/callout.h>
43 #include <sys/malloc.h>
46 #include <dev/usb/usb.h>
47 #include <dev/usb/usbdi.h>
49 #include <dev/usb/usb_core.h>
50 #include <dev/usb/usb_busdma.h>
51 #include <dev/usb/usb_process.h>
52 #include <dev/usb/usb_util.h>
54 #include <dev/usb/usb_controller.h>
55 #include <dev/usb/usb_bus.h>
56 #include <dev/usb/controller/musb_otg.h>
60 static device_probe_t musbotg_probe;
61 static device_attach_t musbotg_attach;
62 static device_detach_t musbotg_detach;
63 static device_shutdown_t musbotg_shutdown;
65 struct musbotg_super_softc {
66 struct musbotg_softc sc_otg; /* must be first */
70 musbotg_vbus_poll(struct musbotg_super_softc *sc)
72 uint8_t vbus_val = 1; /* fake VBUS on - TODO */
75 musbotg_vbus_interrupt(&sc->sc_otg, vbus_val);
79 musbotg_clocks_on(void *arg)
82 struct musbotg_super_softc *sc = arg;
88 musbotg_clocks_off(void *arg)
91 struct musbotg_super_softc *sc = arg;
97 musbotg_probe(device_t dev)
99 device_set_desc(dev, "MUSB OTG integrated USB controller");
104 musbotg_attach(device_t dev)
106 struct musbotg_super_softc *sc = device_get_softc(dev);
110 /* setup MUSB OTG USB controller interface softc */
111 sc->sc_otg.sc_clocks_on = &musbotg_clocks_on;
112 sc->sc_otg.sc_clocks_off = &musbotg_clocks_off;
113 sc->sc_otg.sc_clocks_arg = sc;
115 /* initialise some bus fields */
116 sc->sc_otg.sc_bus.parent = dev;
117 sc->sc_otg.sc_bus.devices = sc->sc_otg.sc_devices;
118 sc->sc_otg.sc_bus.devices_max = MUSB2_MAX_DEVICES;
120 /* get all DMA memory */
121 if (usb_bus_mem_alloc_all(&sc->sc_otg.sc_bus,
122 USB_GET_DMA_TAG(dev), NULL)) {
126 sc->sc_otg.sc_io_res =
127 bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, RF_ACTIVE);
129 if (!(sc->sc_otg.sc_io_res)) {
133 sc->sc_otg.sc_io_tag = rman_get_bustag(sc->sc_otg.sc_io_res);
134 sc->sc_otg.sc_io_hdl = rman_get_bushandle(sc->sc_otg.sc_io_res);
135 sc->sc_otg.sc_io_size = rman_get_size(sc->sc_otg.sc_io_res);
138 sc->sc_otg.sc_irq_res =
139 bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE);
140 if (!(sc->sc_otg.sc_irq_res)) {
143 sc->sc_otg.sc_bus.bdev = device_add_child(dev, "usbus", -1);
144 if (!(sc->sc_otg.sc_bus.bdev)) {
147 device_set_ivars(sc->sc_otg.sc_bus.bdev, &sc->sc_otg.sc_bus);
149 #if (__FreeBSD_version >= 700031)
150 err = bus_setup_intr(dev, sc->sc_otg.sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE,
151 NULL, (driver_intr_t *)musbotg_interrupt, sc, &sc->sc_otg.sc_intr_hdl);
153 err = bus_setup_intr(dev, sc->sc_otg.sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE,
154 (driver_intr_t *)musbotg_interrupt, sc, &sc->sc_otg.sc_intr_hdl);
157 sc->sc_otg.sc_intr_hdl = NULL;
160 err = musbotg_init(&sc->sc_otg);
162 err = device_probe_and_attach(sc->sc_otg.sc_bus.bdev);
167 /* poll VBUS one time */
168 musbotg_vbus_poll(sc);
178 musbotg_detach(device_t dev)
180 struct musbotg_super_softc *sc = device_get_softc(dev);
184 if (sc->sc_otg.sc_bus.bdev) {
185 bdev = sc->sc_otg.sc_bus.bdev;
187 device_delete_child(dev, bdev);
189 /* during module unload there are lots of children leftover */
190 device_delete_all_children(dev);
192 if (sc->sc_otg.sc_irq_res && sc->sc_otg.sc_intr_hdl) {
194 * only call musbotg_uninit() after musbotg_init()
196 musbotg_uninit(&sc->sc_otg);
198 err = bus_teardown_intr(dev, sc->sc_otg.sc_irq_res,
199 sc->sc_otg.sc_intr_hdl);
200 sc->sc_otg.sc_intr_hdl = NULL;
202 /* free IRQ channel, if any */
203 if (sc->sc_otg.sc_irq_res) {
204 bus_release_resource(dev, SYS_RES_IRQ, 0,
205 sc->sc_otg.sc_irq_res);
206 sc->sc_otg.sc_irq_res = NULL;
208 /* free memory resource, if any */
209 if (sc->sc_otg.sc_io_res) {
210 bus_release_resource(dev, SYS_RES_MEMORY, 0,
211 sc->sc_otg.sc_io_res);
212 sc->sc_otg.sc_io_res = NULL;
214 usb_bus_mem_free_all(&sc->sc_otg.sc_bus, NULL);
220 musbotg_shutdown(device_t dev)
222 struct musbotg_super_softc *sc = device_get_softc(dev);
225 err = bus_generic_shutdown(dev);
229 musbotg_uninit(&sc->sc_otg);
234 static device_method_t musbotg_methods[] = {
235 /* Device interface */
236 DEVMETHOD(device_probe, musbotg_probe),
237 DEVMETHOD(device_attach, musbotg_attach),
238 DEVMETHOD(device_detach, musbotg_detach),
239 DEVMETHOD(device_shutdown, musbotg_shutdown),
242 DEVMETHOD(bus_print_child, bus_generic_print_child),
247 static driver_t musbotg_driver = {
250 sizeof(struct musbotg_super_softc),
253 static devclass_t musbotg_devclass;
255 DRIVER_MODULE(musbotg, atmelarm, musbotg_driver, musbotg_devclass, 0, 0);
256 MODULE_DEPEND(musbotg, usb, 1, 1, 1);