1 /*-
2 * Copyright (c) 1998 The NetBSD Foundation, Inc.
3 * All rights reserved.
4 *
5 * This code is derived from software contributed to The NetBSD Foundation
6 * by Lennart Augustsson (augustss@carlstedt.se) at
7 * Carlstedt Research & Technology.
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 * 3. All advertising materials mentioning features or use of this software
18 * must display the following acknowledgement:
19 * This product includes software developed by the NetBSD
20 * Foundation, Inc. and its contributors.
21 * 4. Neither the name of The NetBSD Foundation nor the names of its
22 * contributors may be used to endorse or promote products derived
23 * from this software without specific prior written permission.
24 *
25 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
26 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
27 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
28 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
29 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
35 * POSSIBILITY OF SUCH DAMAGE.
36 */
37
38 #include <sys/cdefs.h>
39 __FBSDID("$FreeBSD: releng/8.2/sys/mips/rmi/xls_ehci.c 215938 2010-11-27 12:26:40Z jchandra $");
40
41 #include "opt_bus.h"
42
43 #include <sys/stdint.h>
44 #include <sys/stddef.h>
45 #include <sys/param.h>
46 #include <sys/queue.h>
47 #include <sys/types.h>
48 #include <sys/systm.h>
49 #include <sys/kernel.h>
50 #include <sys/bus.h>
51 #include <sys/linker_set.h>
52 #include <sys/module.h>
53 #include <sys/lock.h>
54 #include <sys/mutex.h>
55 #include <sys/condvar.h>
56 #include <sys/sysctl.h>
57 #include <sys/sx.h>
58 #include <sys/unistd.h>
59 #include <sys/callout.h>
60 #include <sys/malloc.h>
61 #include <sys/priv.h>
62
63 #include <sys/rman.h>
64 #include <machine/resource.h>
65
66 #include <dev/usb/usb.h>
67 #include <dev/usb/usbdi.h>
68
69 #include <dev/usb/usb_core.h>
70 #include <dev/usb/usb_busdma.h>
71 #include <dev/usb/usb_process.h>
72 #include <dev/usb/usb_util.h>
73
74 #include <dev/usb/usb_controller.h>
75 #include <dev/usb/usb_bus.h>
76 #include <dev/usb/controller/ehci.h>
77 #include <dev/usb/controller/ehcireg.h>
78 #include <mips/rmi/pic.h>
79
80 static int ehci_xls_attach(device_t self);
81 static int ehci_xls_detach(device_t self);
82 static int ehci_xls_shutdown(device_t self);
83 static int ehci_xls_suspend(device_t self);
84 static int ehci_xls_resume(device_t self);
85
86 static int
87 ehci_xls_suspend(device_t self)
88 {
89 ehci_softc_t *sc = device_get_softc(self);
90 int err;
91
92 err = bus_generic_suspend(self);
93 if (err)
94 return (err);
95 ehci_suspend(sc);
96 return (0);
97 }
98
99 static int
100 ehci_xls_resume(device_t self)
101 {
102 ehci_softc_t *sc = device_get_softc(self);
103
104 ehci_resume(sc);
105
106 bus_generic_resume(self);
107
108 return (0);
109 }
110
111 static int
112 ehci_xls_shutdown(device_t self)
113 {
114 ehci_softc_t *sc = device_get_softc(self);
115 int err;
116
117 err = bus_generic_shutdown(self);
118 if (err)
119 return (err);
120 ehci_shutdown(sc);
121
122 return (0);
123 }
124
125 static const char *xlr_usb_dev_desc = "RMI XLR USB 2.0 controller";
126 static const char *xlr_vendor_desc = "RMI Corp";
127
128 static int
129 ehci_xls_probe(device_t self)
130 {
131 /* TODO see if usb is enabled on the board */
132 device_set_desc(self, xlr_usb_dev_desc);
133 return BUS_PROBE_DEFAULT;
134 }
135
136 static int
137 ehci_xls_attach(device_t self)
138 {
139 ehci_softc_t *sc = device_get_softc(self);
140 int err;
141 int rid;
142
143 sc->sc_bus.parent = self;
144 sc->sc_bus.devices = sc->sc_devices;
145 sc->sc_bus.devices_max = EHCI_MAX_DEVICES;
146
147 /* get all DMA memory */
148 if (usb_bus_mem_alloc_all(&sc->sc_bus,
149 USB_GET_DMA_TAG(self), &ehci_iterate_hw_softc)) {
150 return (ENOMEM);
151 }
152
153 rid = 0;
154 sc->sc_io_res = bus_alloc_resource_any(self, SYS_RES_MEMORY, &rid,
155 RF_ACTIVE);
156 if (!sc->sc_io_res) {
157 device_printf(self, "Could not map memory\n");
158 goto error;
159 }
160 sc->sc_io_tag = rman_get_bustag(sc->sc_io_res);
161 sc->sc_io_hdl = rman_get_bushandle(sc->sc_io_res);
162 printf("IO Resource tag %lx, hdl %lx, size %lx\n",
163 (u_long)sc->sc_io_tag, (u_long)sc->sc_io_hdl,
164 (u_long)sc->sc_io_size);
165
166 rid = 0;
167 sc->sc_irq_res = bus_alloc_resource(self, SYS_RES_IRQ, &rid,
168 PIC_USB_IRQ, PIC_USB_IRQ, 1, RF_SHAREABLE | RF_ACTIVE);
169 if (sc->sc_irq_res == NULL) {
170 device_printf(self, "Could not allocate irq\n");
171 goto error;
172 }
173
174 sc->sc_bus.bdev = device_add_child(self, "usbus", -1);
175 if (!sc->sc_bus.bdev) {
176 device_printf(self, "Could not add USB device\n");
177 goto error;
178 }
179 device_set_ivars(sc->sc_bus.bdev, &sc->sc_bus);
180 device_set_desc(sc->sc_bus.bdev, xlr_usb_dev_desc);
181
182 sprintf(sc->sc_vendor, xlr_vendor_desc);
183
184 err = bus_setup_intr(self, sc->sc_irq_res,
185 INTR_TYPE_BIO | INTR_MPSAFE, NULL,
186 (driver_intr_t *) ehci_interrupt, sc, &sc->sc_intr_hdl);
187 if (err) {
188 device_printf(self, "Could not setup irq, %d\n", err);
189 sc->sc_intr_hdl = NULL;
190 goto error;
191 }
192
193 err = ehci_init(sc);
194 if (err) {
195 device_printf(self, "USB init failed err=%d\n", err);
196 goto error;
197 }
198
199 err = device_probe_and_attach(sc->sc_bus.bdev);
200 if (err) {
201 device_printf(self, "USB probe and attach failed err=%d\n", err);
202 goto error;
203 }
204
205 return (0);
206
207 error:
208 ehci_xls_detach(self);
209 return (ENXIO);
210 }
211
212 static int
213 ehci_xls_detach(device_t self)
214 {
215 ehci_softc_t *sc = device_get_softc(self);
216 device_t bdev;
217 int err;
218
219 if (sc->sc_bus.bdev) {
220 bdev = sc->sc_bus.bdev;
221 device_detach(bdev);
222 device_delete_child(self, bdev);
223 }
224 /* during module unload there are lots of children leftover */
225 device_delete_all_children(self);
226
227 /*
228 * disable interrupts that might have been switched on in ehci_init
229 */
230 if (sc->sc_io_res) {
231 EWRITE4(sc, EHCI_USBINTR, 0);
232 }
233
234 if (sc->sc_irq_res && sc->sc_intr_hdl) {
235 ehci_detach(sc);
236
237 err = bus_teardown_intr(self, sc->sc_irq_res, sc->sc_intr_hdl);
238 if (err)
239 device_printf(self, "Could not tear down irq, %d\n",
240 err);
241 sc->sc_intr_hdl = 0;
242 }
243
244 if (sc->sc_irq_res) {
245 bus_release_resource(self, SYS_RES_IRQ, 0, sc->sc_irq_res);
246 sc->sc_irq_res = NULL;
247 }
248 if (sc->sc_io_res) {
249 bus_release_resource(self, SYS_RES_MEMORY, 0,
250 sc->sc_io_res);
251 sc->sc_io_res = NULL;
252 sc->sc_io_tag = 0;
253 sc->sc_io_hdl = 0;
254 }
255
256 usb_bus_mem_free_all(&sc->sc_bus, &ehci_iterate_hw_softc);
257
258 return (0);
259 }
260
261 static device_method_t ehci_methods[] = {
262 /* Device interface */
263 DEVMETHOD(device_probe, ehci_xls_probe),
264 DEVMETHOD(device_attach, ehci_xls_attach),
265 DEVMETHOD(device_detach, ehci_xls_detach),
266 DEVMETHOD(device_suspend, ehci_xls_suspend),
267 DEVMETHOD(device_resume, ehci_xls_resume),
268 DEVMETHOD(device_shutdown, ehci_xls_shutdown),
269
270 /* Bus interface */
271 DEVMETHOD(bus_print_child, bus_generic_print_child),
272
273 {0, 0}
274 };
275
276 static driver_t ehci_driver = {
277 "ehci",
278 ehci_methods,
279 sizeof(struct ehci_softc),
280 };
281
282 static devclass_t ehci_devclass;
283
284 DRIVER_MODULE(ehci, iodi, ehci_driver, ehci_devclass, 0, 0);
285 MODULE_DEPEND(ehci, usb, 1, 1, 1);
Cache object: 0d8bcf14404df4979014a7995e5d1252
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