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 *
18 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
19 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
20 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
21 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
22 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28 * POSSIBILITY OF SUCH DAMAGE.
29 */
30
31 #include <sys/cdefs.h>
32 __FBSDID("$FreeBSD: releng/9.0/sys/mips/rmi/xls_ehci.c 220558 2011-04-12 07:49:11Z hselasky $");
33
34 #include "opt_bus.h"
35
36 #include <sys/stdint.h>
37 #include <sys/stddef.h>
38 #include <sys/param.h>
39 #include <sys/queue.h>
40 #include <sys/types.h>
41 #include <sys/systm.h>
42 #include <sys/kernel.h>
43 #include <sys/bus.h>
44 #include <sys/module.h>
45 #include <sys/lock.h>
46 #include <sys/mutex.h>
47 #include <sys/condvar.h>
48 #include <sys/sysctl.h>
49 #include <sys/sx.h>
50 #include <sys/unistd.h>
51 #include <sys/callout.h>
52 #include <sys/malloc.h>
53 #include <sys/priv.h>
54
55 #include <sys/rman.h>
56 #include <machine/resource.h>
57
58 #include <dev/usb/usb.h>
59 #include <dev/usb/usbdi.h>
60
61 #include <dev/usb/usb_core.h>
62 #include <dev/usb/usb_busdma.h>
63 #include <dev/usb/usb_process.h>
64 #include <dev/usb/usb_util.h>
65
66 #include <dev/usb/usb_controller.h>
67 #include <dev/usb/usb_bus.h>
68 #include <dev/usb/controller/ehci.h>
69 #include <dev/usb/controller/ehcireg.h>
70 #include <mips/rmi/pic.h>
71
72 static int ehci_xls_attach(device_t self);
73 static int ehci_xls_detach(device_t self);
74 static int ehci_xls_shutdown(device_t self);
75 static int ehci_xls_suspend(device_t self);
76 static int ehci_xls_resume(device_t self);
77
78 static int
79 ehci_xls_suspend(device_t self)
80 {
81 ehci_softc_t *sc = device_get_softc(self);
82 int err;
83
84 err = bus_generic_suspend(self);
85 if (err)
86 return (err);
87 ehci_suspend(sc);
88 return (0);
89 }
90
91 static int
92 ehci_xls_resume(device_t self)
93 {
94 ehci_softc_t *sc = device_get_softc(self);
95
96 ehci_resume(sc);
97
98 bus_generic_resume(self);
99
100 return (0);
101 }
102
103 static int
104 ehci_xls_shutdown(device_t self)
105 {
106 ehci_softc_t *sc = device_get_softc(self);
107 int err;
108
109 err = bus_generic_shutdown(self);
110 if (err)
111 return (err);
112 ehci_shutdown(sc);
113
114 return (0);
115 }
116
117 static const char *xlr_usb_dev_desc = "RMI XLR USB 2.0 controller";
118 static const char *xlr_vendor_desc = "RMI Corp";
119
120 static int
121 ehci_xls_probe(device_t self)
122 {
123 /* TODO see if usb is enabled on the board */
124 device_set_desc(self, xlr_usb_dev_desc);
125 return BUS_PROBE_DEFAULT;
126 }
127
128 static int
129 ehci_xls_attach(device_t self)
130 {
131 ehci_softc_t *sc = device_get_softc(self);
132 int err;
133 int rid;
134
135 sc->sc_bus.parent = self;
136 sc->sc_bus.devices = sc->sc_devices;
137 sc->sc_bus.devices_max = EHCI_MAX_DEVICES;
138
139 /* get all DMA memory */
140 if (usb_bus_mem_alloc_all(&sc->sc_bus,
141 USB_GET_DMA_TAG(self), &ehci_iterate_hw_softc)) {
142 return (ENOMEM);
143 }
144
145 rid = 0;
146 sc->sc_io_res = bus_alloc_resource_any(self, SYS_RES_MEMORY, &rid,
147 RF_ACTIVE);
148 if (!sc->sc_io_res) {
149 device_printf(self, "Could not map memory\n");
150 goto error;
151 }
152 sc->sc_io_tag = rman_get_bustag(sc->sc_io_res);
153 sc->sc_io_hdl = rman_get_bushandle(sc->sc_io_res);
154 printf("IO Resource tag %lx, hdl %lx, size %lx\n",
155 (u_long)sc->sc_io_tag, (u_long)sc->sc_io_hdl,
156 (u_long)sc->sc_io_size);
157
158 rid = 0;
159 sc->sc_irq_res = bus_alloc_resource(self, SYS_RES_IRQ, &rid,
160 PIC_USB_IRQ, PIC_USB_IRQ, 1, RF_SHAREABLE | RF_ACTIVE);
161 if (sc->sc_irq_res == NULL) {
162 device_printf(self, "Could not allocate irq\n");
163 goto error;
164 }
165
166 sc->sc_bus.bdev = device_add_child(self, "usbus", -1);
167 if (!sc->sc_bus.bdev) {
168 device_printf(self, "Could not add USB device\n");
169 goto error;
170 }
171 device_set_ivars(sc->sc_bus.bdev, &sc->sc_bus);
172 device_set_desc(sc->sc_bus.bdev, xlr_usb_dev_desc);
173
174 sprintf(sc->sc_vendor, xlr_vendor_desc);
175
176 err = bus_setup_intr(self, sc->sc_irq_res,
177 INTR_TYPE_BIO | INTR_MPSAFE, NULL,
178 (driver_intr_t *) ehci_interrupt, sc, &sc->sc_intr_hdl);
179 if (err) {
180 device_printf(self, "Could not setup irq, %d\n", err);
181 sc->sc_intr_hdl = NULL;
182 goto error;
183 }
184
185 err = ehci_init(sc);
186 if (err) {
187 device_printf(self, "USB init failed err=%d\n", err);
188 goto error;
189 }
190
191 err = device_probe_and_attach(sc->sc_bus.bdev);
192 if (err) {
193 device_printf(self, "USB probe and attach failed err=%d\n", err);
194 goto error;
195 }
196
197 return (0);
198
199 error:
200 ehci_xls_detach(self);
201 return (ENXIO);
202 }
203
204 static int
205 ehci_xls_detach(device_t self)
206 {
207 ehci_softc_t *sc = device_get_softc(self);
208 device_t bdev;
209 int err;
210
211 if (sc->sc_bus.bdev) {
212 bdev = sc->sc_bus.bdev;
213 device_detach(bdev);
214 device_delete_child(self, bdev);
215 }
216 /* during module unload there are lots of children leftover */
217 device_delete_all_children(self);
218
219 if (sc->sc_irq_res && sc->sc_intr_hdl) {
220 ehci_detach(sc);
221
222 err = bus_teardown_intr(self, sc->sc_irq_res, sc->sc_intr_hdl);
223 if (err)
224 device_printf(self, "Could not tear down irq, %d\n",
225 err);
226 sc->sc_intr_hdl = 0;
227 }
228
229 if (sc->sc_irq_res) {
230 bus_release_resource(self, SYS_RES_IRQ, 0, sc->sc_irq_res);
231 sc->sc_irq_res = NULL;
232 }
233 if (sc->sc_io_res) {
234 bus_release_resource(self, SYS_RES_MEMORY, 0,
235 sc->sc_io_res);
236 sc->sc_io_res = NULL;
237 sc->sc_io_tag = 0;
238 sc->sc_io_hdl = 0;
239 }
240
241 usb_bus_mem_free_all(&sc->sc_bus, &ehci_iterate_hw_softc);
242
243 return (0);
244 }
245
246 static device_method_t ehci_methods[] = {
247 /* Device interface */
248 DEVMETHOD(device_probe, ehci_xls_probe),
249 DEVMETHOD(device_attach, ehci_xls_attach),
250 DEVMETHOD(device_detach, ehci_xls_detach),
251 DEVMETHOD(device_suspend, ehci_xls_suspend),
252 DEVMETHOD(device_resume, ehci_xls_resume),
253 DEVMETHOD(device_shutdown, ehci_xls_shutdown),
254
255 /* Bus interface */
256 DEVMETHOD(bus_print_child, bus_generic_print_child),
257
258 {0, 0}
259 };
260
261 static driver_t ehci_driver = {
262 "ehci",
263 ehci_methods,
264 sizeof(struct ehci_softc),
265 };
266
267 static devclass_t ehci_devclass;
268
269 DRIVER_MODULE(ehci, iodi, ehci_driver, ehci_devclass, 0, 0);
270 MODULE_DEPEND(ehci, usb, 1, 1, 1);
Cache object: 022a6c45c9b51597f1deff6ec9add0d5
|