1 #include <sys/cdefs.h>
2 __FBSDID("$FreeBSD$");
3
4 /*-
5 * Copyright (c) 2015-2016 Stanislav Galabov. All rights reserved.
6 * Copyright (c) 2010,2011 Aleksandr Rybalko. All rights reserved.
7 * Copyright (c) 2007-2008 Hans Petter Selasky. All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * SUCH DAMAGE.
29 */
30
31 #include <sys/stdint.h>
32 #include <sys/stddef.h>
33 #include <sys/param.h>
34 #include <sys/queue.h>
35 #include <sys/types.h>
36 #include <sys/systm.h>
37 #include <sys/kernel.h>
38 #include <sys/bus.h>
39 #include <sys/module.h>
40 #include <sys/lock.h>
41 #include <sys/mutex.h>
42 #include <sys/condvar.h>
43 #include <sys/sysctl.h>
44 #include <sys/sx.h>
45 #include <sys/unistd.h>
46 #include <sys/callout.h>
47 #include <sys/malloc.h>
48 #include <sys/priv.h>
49 #include <sys/rman.h>
50
51 #include <dev/usb/usb.h>
52 #include <dev/usb/usbdi.h>
53
54 #include <dev/usb/usb_core.h>
55 #include <dev/usb/usb_busdma.h>
56 #include <dev/usb/usb_process.h>
57 #include <dev/usb/usb_util.h>
58
59 #include <dev/usb/usb_controller.h>
60 #include <dev/usb/usb_bus.h>
61
62 #include <dev/usb/controller/dwc_otg.h>
63
64 #include <dev/ofw/openfirm.h>
65 #include <dev/ofw/ofw_bus.h>
66 #include <dev/ofw/ofw_bus_subr.h>
67
68 #define MEM_RID 0
69
70 static device_probe_t dotg_fdt_probe;
71 static device_attach_t dotg_fdt_attach;
72 static device_detach_t dotg_fdt_detach;
73
74 static int
dotg_fdt_probe(device_t dev)75 dotg_fdt_probe(device_t dev)
76 {
77
78 if (!ofw_bus_status_okay(dev))
79 return (ENXIO);
80
81 if (!ofw_bus_is_compatible(dev, "ralink,rt3050-otg"))
82 return (ENXIO);
83
84 device_set_desc(dev, "MTK DWC-OTG USB Controller");
85 return (0);
86 }
87
88 static int
dotg_fdt_attach(device_t dev)89 dotg_fdt_attach(device_t dev)
90 {
91 struct dwc_otg_softc *sc = device_get_softc(dev);
92 int err, rid;
93
94 /* setup controller interface softc */
95
96 /* initialise some bus fields */
97 sc->sc_mode = DWC_MODE_HOST;
98 sc->sc_bus.parent = dev;
99
100 rid = 0;
101 sc->sc_io_res =
102 bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, RF_ACTIVE);
103 if (!(sc->sc_io_res)) {
104 printf("Can`t alloc MEM\n");
105 goto error;
106 }
107
108 rid = 0;
109 sc->sc_irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ,
110 &rid, RF_ACTIVE);
111 if (!(sc->sc_irq_res)) {
112 printf("Can`t alloc IRQ\n");
113 goto error;
114 }
115
116 sc->sc_bus.bdev = device_add_child(dev, "usbus", -1);
117 if (!(sc->sc_bus.bdev)) {
118 printf("Can`t add usbus\n");
119 goto error;
120 }
121 device_set_ivars(sc->sc_bus.bdev, &sc->sc_bus);
122
123 err = dwc_otg_init(sc);
124 if (err) printf("dotg_init fail\n");
125 if (!err) {
126 err = device_probe_and_attach(sc->sc_bus.bdev);
127 if (err) printf("device_probe_and_attach fail %d\n", err);
128 }
129 if (err) {
130 goto error;
131 }
132 return (0);
133
134 error:
135 dotg_fdt_detach(dev);
136 return (ENXIO);
137 }
138
139 static int
dotg_fdt_detach(device_t dev)140 dotg_fdt_detach(device_t dev)
141 {
142 struct dwc_otg_softc *sc = device_get_softc(dev);
143 int err;
144
145 /* during module unload there are lots of children leftover */
146 device_delete_children(dev);
147
148 if (sc->sc_irq_res && sc->sc_intr_hdl) {
149 /*
150 * only call dotg_fdt_uninit() after dotg_fdt_init()
151 */
152 dwc_otg_uninit(sc);
153
154 err = bus_teardown_intr(dev, sc->sc_irq_res,
155 sc->sc_intr_hdl);
156 sc->sc_intr_hdl = NULL;
157 }
158 if (sc->sc_irq_res) {
159 bus_release_resource(dev, SYS_RES_IRQ, 0,
160 sc->sc_irq_res);
161 sc->sc_irq_res = NULL;
162 }
163 if (sc->sc_io_res) {
164 bus_release_resource(dev, SYS_RES_MEMORY, 0,
165 sc->sc_io_res);
166 sc->sc_io_res = NULL;
167 }
168 usb_bus_mem_free_all(&sc->sc_bus, NULL);
169
170 return (0);
171 }
172
173 static device_method_t dotg_fdt_methods[] = {
174 /* Device interface */
175 DEVMETHOD(device_probe, dotg_fdt_probe),
176 DEVMETHOD(device_attach, dotg_fdt_attach),
177 DEVMETHOD(device_detach, dotg_fdt_detach),
178 DEVMETHOD(device_suspend, bus_generic_suspend),
179 DEVMETHOD(device_resume, bus_generic_resume),
180 DEVMETHOD(device_shutdown, bus_generic_shutdown),
181
182 DEVMETHOD_END
183 };
184
185 static driver_t dotg_fdt_driver = {
186 .name = "dwcotg",
187 .methods = dotg_fdt_methods,
188 .size = sizeof(struct dwc_otg_softc),
189 };
190
191 static devclass_t dotg_fdt_devclass;
192
193 DRIVER_MODULE(dotg, simplebus, dotg_fdt_driver, dotg_fdt_devclass, 0, 0);
194