1/*-
2 * Copyright (C) 2008 MARVELL INTERNATIONAL LTD.
3 * All rights reserved.
4 *
5 * Developed by Semihalf.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
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.
15 * 3. Neither the name of MARVELL nor the names of contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32/*
33 * FDT attachment driver for the USB Enhanced Host Controller.
34 */
35
36#include <sys/cdefs.h>
| 1/*-
2 * Copyright (C) 2008 MARVELL INTERNATIONAL LTD.
3 * All rights reserved.
4 *
5 * Developed by Semihalf.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
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.
15 * 3. Neither the name of MARVELL nor the names of contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32/*
33 * FDT attachment driver for the USB Enhanced Host Controller.
34 */
35
36#include <sys/cdefs.h>
|
38
39#include "opt_bus.h"
40
41#include <sys/stdint.h>
42#include <sys/stddef.h>
43#include <sys/param.h>
44#include <sys/queue.h>
45#include <sys/types.h>
46#include <sys/systm.h>
47#include <sys/kernel.h>
48#include <sys/bus.h>
49#include <sys/linker_set.h>
50#include <sys/module.h>
51#include <sys/lock.h>
52#include <sys/mutex.h>
53#include <sys/condvar.h>
54#include <sys/sysctl.h>
55#include <sys/sx.h>
56#include <sys/unistd.h>
57#include <sys/callout.h>
58#include <sys/malloc.h>
59#include <sys/priv.h>
60
61#include <dev/ofw/ofw_bus.h>
62#include <dev/ofw/ofw_bus_subr.h>
63
64#include <dev/usb/usb.h>
65#include <dev/usb/usbdi.h>
66
67#include <dev/usb/usb_core.h>
68#include <dev/usb/usb_busdma.h>
69#include <dev/usb/usb_process.h>
70#include <dev/usb/usb_util.h>
71
72#include <dev/usb/usb_controller.h>
73#include <dev/usb/usb_bus.h>
74#include <dev/usb/controller/ehci.h>
75#include <dev/usb/controller/ehcireg.h>
76
77#include <arm/mv/mvreg.h>
78#include <arm/mv/mvvar.h>
79
80#define EHCI_VENDORID_MRVL 0x1286
81#define EHCI_HC_DEVSTR "Marvell Integrated USB 2.0 controller"
82
83static device_attach_t mv_ehci_attach;
84static device_detach_t mv_ehci_detach;
85static device_shutdown_t mv_ehci_shutdown;
86static device_suspend_t mv_ehci_suspend;
87static device_resume_t mv_ehci_resume;
88
89static int err_intr(void *arg);
90
91static struct resource *irq_err;
92static void *ih_err;
93
94/* EHCI HC regs start at this offset within USB range */
95#define MV_USB_HOST_OFST 0x0100
96
97#define USB_BRIDGE_INTR_CAUSE 0x210
98#define USB_BRIDGE_INTR_MASK 0x214
99
100#define MV_USB_ADDR_DECODE_ERR (1 << 0)
101#define MV_USB_HOST_UNDERFLOW (1 << 1)
102#define MV_USB_HOST_OVERFLOW (1 << 2)
103#define MV_USB_DEVICE_UNDERFLOW (1 << 3)
104
105static int
106mv_ehci_suspend(device_t self)
107{
108 ehci_softc_t *sc = device_get_softc(self);
109 int err;
110
111 err = bus_generic_suspend(self);
112 if (err)
113 return (err);
114 ehci_suspend(sc);
115 return (0);
116}
117
118static int
119mv_ehci_resume(device_t self)
120{
121 ehci_softc_t *sc = device_get_softc(self);
122
123 ehci_resume(sc);
124
125 bus_generic_resume(self);
126
127 return (0);
128}
129
130static int
131mv_ehci_shutdown(device_t self)
132{
133 ehci_softc_t *sc = device_get_softc(self);
134 int err;
135
136 err = bus_generic_shutdown(self);
137 if (err)
138 return (err);
139 ehci_shutdown(sc);
140
141 return (0);
142}
143
144static int
145mv_ehci_probe(device_t self)
146{
147
148 if (!ofw_bus_is_compatible(self, "mrvl,usb-ehci"))
149 return (ENXIO);
150
151 device_set_desc(self, EHCI_HC_DEVSTR);
152
153 return (BUS_PROBE_DEFAULT);
154}
155
156static int
157mv_ehci_attach(device_t self)
158{
159 ehci_softc_t *sc = device_get_softc(self);
160 bus_space_handle_t bsh;
161 int err;
162 int rid;
163
164 /* initialise some bus fields */
165 sc->sc_bus.parent = self;
166 sc->sc_bus.devices = sc->sc_devices;
167 sc->sc_bus.devices_max = EHCI_MAX_DEVICES;
168
169 /* get all DMA memory */
170 if (usb_bus_mem_alloc_all(&sc->sc_bus,
171 USB_GET_DMA_TAG(self), &ehci_iterate_hw_softc)) {
172 return (ENOMEM);
173 }
174
175 rid = 0;
176 sc->sc_io_res = bus_alloc_resource_any(self, SYS_RES_MEMORY, &rid, RF_ACTIVE);
177 if (!sc->sc_io_res) {
178 device_printf(self, "Could not map memory\n");
179 goto error;
180 }
181 sc->sc_io_tag = rman_get_bustag(sc->sc_io_res);
182 bsh = rman_get_bushandle(sc->sc_io_res);
183 sc->sc_io_size = rman_get_size(sc->sc_io_res) - MV_USB_HOST_OFST;
184
185 /*
186 * Marvell EHCI host controller registers start at certain offset
187 * within the whole USB registers range, so create a subregion for the
188 * host mode configuration purposes.
189 */
190
191 if (bus_space_subregion(sc->sc_io_tag, bsh, MV_USB_HOST_OFST,
192 sc->sc_io_size, &sc->sc_io_hdl) != 0)
193 panic("%s: unable to subregion USB host registers",
194 device_get_name(self));
195
196 rid = 0;
197 irq_err = bus_alloc_resource_any(self, SYS_RES_IRQ, &rid,
198 RF_SHAREABLE | RF_ACTIVE);
199 if (irq_err == NULL) {
200 device_printf(self, "Could not allocate error irq\n");
201 mv_ehci_detach(self);
202 return (ENXIO);
203 }
204
205 /*
206 * Notice: Marvell EHCI controller has TWO interrupt lines, so make
207 * sure to use the correct rid for the main one (controller interrupt)
208 * -- refer to DTS for the right resource number to use here.
209 */
210 rid = 1;
211 sc->sc_irq_res = bus_alloc_resource_any(self, SYS_RES_IRQ, &rid,
212 RF_SHAREABLE | RF_ACTIVE);
213 if (sc->sc_irq_res == NULL) {
214 device_printf(self, "Could not allocate irq\n");
215 goto error;
216 }
217
218 sc->sc_bus.bdev = device_add_child(self, "usbus", -1);
219 if (!sc->sc_bus.bdev) {
220 device_printf(self, "Could not add USB device\n");
221 goto error;
222 }
223 device_set_ivars(sc->sc_bus.bdev, &sc->sc_bus);
224 device_set_desc(sc->sc_bus.bdev, EHCI_HC_DEVSTR);
225
226 sprintf(sc->sc_vendor, "Marvell");
227
| 38
39#include "opt_bus.h"
40
41#include <sys/stdint.h>
42#include <sys/stddef.h>
43#include <sys/param.h>
44#include <sys/queue.h>
45#include <sys/types.h>
46#include <sys/systm.h>
47#include <sys/kernel.h>
48#include <sys/bus.h>
49#include <sys/linker_set.h>
50#include <sys/module.h>
51#include <sys/lock.h>
52#include <sys/mutex.h>
53#include <sys/condvar.h>
54#include <sys/sysctl.h>
55#include <sys/sx.h>
56#include <sys/unistd.h>
57#include <sys/callout.h>
58#include <sys/malloc.h>
59#include <sys/priv.h>
60
61#include <dev/ofw/ofw_bus.h>
62#include <dev/ofw/ofw_bus_subr.h>
63
64#include <dev/usb/usb.h>
65#include <dev/usb/usbdi.h>
66
67#include <dev/usb/usb_core.h>
68#include <dev/usb/usb_busdma.h>
69#include <dev/usb/usb_process.h>
70#include <dev/usb/usb_util.h>
71
72#include <dev/usb/usb_controller.h>
73#include <dev/usb/usb_bus.h>
74#include <dev/usb/controller/ehci.h>
75#include <dev/usb/controller/ehcireg.h>
76
77#include <arm/mv/mvreg.h>
78#include <arm/mv/mvvar.h>
79
80#define EHCI_VENDORID_MRVL 0x1286
81#define EHCI_HC_DEVSTR "Marvell Integrated USB 2.0 controller"
82
83static device_attach_t mv_ehci_attach;
84static device_detach_t mv_ehci_detach;
85static device_shutdown_t mv_ehci_shutdown;
86static device_suspend_t mv_ehci_suspend;
87static device_resume_t mv_ehci_resume;
88
89static int err_intr(void *arg);
90
91static struct resource *irq_err;
92static void *ih_err;
93
94/* EHCI HC regs start at this offset within USB range */
95#define MV_USB_HOST_OFST 0x0100
96
97#define USB_BRIDGE_INTR_CAUSE 0x210
98#define USB_BRIDGE_INTR_MASK 0x214
99
100#define MV_USB_ADDR_DECODE_ERR (1 << 0)
101#define MV_USB_HOST_UNDERFLOW (1 << 1)
102#define MV_USB_HOST_OVERFLOW (1 << 2)
103#define MV_USB_DEVICE_UNDERFLOW (1 << 3)
104
105static int
106mv_ehci_suspend(device_t self)
107{
108 ehci_softc_t *sc = device_get_softc(self);
109 int err;
110
111 err = bus_generic_suspend(self);
112 if (err)
113 return (err);
114 ehci_suspend(sc);
115 return (0);
116}
117
118static int
119mv_ehci_resume(device_t self)
120{
121 ehci_softc_t *sc = device_get_softc(self);
122
123 ehci_resume(sc);
124
125 bus_generic_resume(self);
126
127 return (0);
128}
129
130static int
131mv_ehci_shutdown(device_t self)
132{
133 ehci_softc_t *sc = device_get_softc(self);
134 int err;
135
136 err = bus_generic_shutdown(self);
137 if (err)
138 return (err);
139 ehci_shutdown(sc);
140
141 return (0);
142}
143
144static int
145mv_ehci_probe(device_t self)
146{
147
148 if (!ofw_bus_is_compatible(self, "mrvl,usb-ehci"))
149 return (ENXIO);
150
151 device_set_desc(self, EHCI_HC_DEVSTR);
152
153 return (BUS_PROBE_DEFAULT);
154}
155
156static int
157mv_ehci_attach(device_t self)
158{
159 ehci_softc_t *sc = device_get_softc(self);
160 bus_space_handle_t bsh;
161 int err;
162 int rid;
163
164 /* initialise some bus fields */
165 sc->sc_bus.parent = self;
166 sc->sc_bus.devices = sc->sc_devices;
167 sc->sc_bus.devices_max = EHCI_MAX_DEVICES;
168
169 /* get all DMA memory */
170 if (usb_bus_mem_alloc_all(&sc->sc_bus,
171 USB_GET_DMA_TAG(self), &ehci_iterate_hw_softc)) {
172 return (ENOMEM);
173 }
174
175 rid = 0;
176 sc->sc_io_res = bus_alloc_resource_any(self, SYS_RES_MEMORY, &rid, RF_ACTIVE);
177 if (!sc->sc_io_res) {
178 device_printf(self, "Could not map memory\n");
179 goto error;
180 }
181 sc->sc_io_tag = rman_get_bustag(sc->sc_io_res);
182 bsh = rman_get_bushandle(sc->sc_io_res);
183 sc->sc_io_size = rman_get_size(sc->sc_io_res) - MV_USB_HOST_OFST;
184
185 /*
186 * Marvell EHCI host controller registers start at certain offset
187 * within the whole USB registers range, so create a subregion for the
188 * host mode configuration purposes.
189 */
190
191 if (bus_space_subregion(sc->sc_io_tag, bsh, MV_USB_HOST_OFST,
192 sc->sc_io_size, &sc->sc_io_hdl) != 0)
193 panic("%s: unable to subregion USB host registers",
194 device_get_name(self));
195
196 rid = 0;
197 irq_err = bus_alloc_resource_any(self, SYS_RES_IRQ, &rid,
198 RF_SHAREABLE | RF_ACTIVE);
199 if (irq_err == NULL) {
200 device_printf(self, "Could not allocate error irq\n");
201 mv_ehci_detach(self);
202 return (ENXIO);
203 }
204
205 /*
206 * Notice: Marvell EHCI controller has TWO interrupt lines, so make
207 * sure to use the correct rid for the main one (controller interrupt)
208 * -- refer to DTS for the right resource number to use here.
209 */
210 rid = 1;
211 sc->sc_irq_res = bus_alloc_resource_any(self, SYS_RES_IRQ, &rid,
212 RF_SHAREABLE | RF_ACTIVE);
213 if (sc->sc_irq_res == NULL) {
214 device_printf(self, "Could not allocate irq\n");
215 goto error;
216 }
217
218 sc->sc_bus.bdev = device_add_child(self, "usbus", -1);
219 if (!sc->sc_bus.bdev) {
220 device_printf(self, "Could not add USB device\n");
221 goto error;
222 }
223 device_set_ivars(sc->sc_bus.bdev, &sc->sc_bus);
224 device_set_desc(sc->sc_bus.bdev, EHCI_HC_DEVSTR);
225
226 sprintf(sc->sc_vendor, "Marvell");
227
|
229 err_intr, NULL, sc, &ih_err);
230 if (err) {
231 device_printf(self, "Could not setup error irq, %d\n", err);
232 ih_err = NULL;
233 goto error;
234 }
235
236 EWRITE4(sc, USB_BRIDGE_INTR_MASK, MV_USB_ADDR_DECODE_ERR |
237 MV_USB_HOST_UNDERFLOW | MV_USB_HOST_OVERFLOW |
238 MV_USB_DEVICE_UNDERFLOW);
239
240 err = bus_setup_intr(self, sc->sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE,
241 NULL, (driver_intr_t *)ehci_interrupt, sc, &sc->sc_intr_hdl);
242 if (err) {
243 device_printf(self, "Could not setup irq, %d\n", err);
244 sc->sc_intr_hdl = NULL;
245 goto error;
246 }
247
248 /*
249 * Workaround for Marvell integrated EHCI controller: reset of
250 * the EHCI core clears the USBMODE register, which sets the core in
251 * an undefined state (neither host nor agent), so it needs to be set
252 * again for proper operation.
253 *
254 * Refer to errata document MV-S500832-00D.pdf (p. 5.24 GL USB-2) for
255 * details.
256 */
257 sc->sc_flags |= EHCI_SCFLG_SETMODE;
258 if (bootverbose)
259 device_printf(self, "5.24 GL USB-2 workaround enabled\n");
260
261 /* XXX all MV chips need it? */
262 sc->sc_flags |= EHCI_SCFLG_FORCESPEED | EHCI_SCFLG_NORESTERM;
263
264 err = ehci_init(sc);
265 if (!err) {
266 err = device_probe_and_attach(sc->sc_bus.bdev);
267 }
268 if (err) {
269 device_printf(self, "USB init failed err=%d\n", err);
270 goto error;
271 }
272 return (0);
273
274error:
275 mv_ehci_detach(self);
276 return (ENXIO);
277}
278
279static int
280mv_ehci_detach(device_t self)
281{
282 ehci_softc_t *sc = device_get_softc(self);
283 device_t bdev;
284 int err;
285
286 if (sc->sc_bus.bdev) {
287 bdev = sc->sc_bus.bdev;
288 device_detach(bdev);
289 device_delete_child(self, bdev);
290 }
291 /* during module unload there are lots of children leftover */
292 device_delete_all_children(self);
293
294 /*
295 * disable interrupts that might have been switched on in ehci_init
296 */
297 if (sc->sc_io_res) {
298 EWRITE4(sc, EHCI_USBINTR, 0);
299 EWRITE4(sc, USB_BRIDGE_INTR_MASK, 0);
300 }
301 if (sc->sc_irq_res && sc->sc_intr_hdl) {
302 /*
303 * only call ehci_detach() after ehci_init()
304 */
305 ehci_detach(sc);
306
307 err = bus_teardown_intr(self, sc->sc_irq_res, sc->sc_intr_hdl);
308
309 if (err)
310 /* XXX or should we panic? */
311 device_printf(self, "Could not tear down irq, %d\n",
312 err);
313 sc->sc_intr_hdl = NULL;
314 }
315 if (irq_err && ih_err) {
316 err = bus_teardown_intr(self, irq_err, ih_err);
317
318 if (err)
319 device_printf(self, "Could not tear down irq, %d\n",
320 err);
321 ih_err = NULL;
322 }
323 if (irq_err) {
324 bus_release_resource(self, SYS_RES_IRQ, 0, irq_err);
325 irq_err = NULL;
326 }
327 if (sc->sc_irq_res) {
328 bus_release_resource(self, SYS_RES_IRQ, 1, sc->sc_irq_res);
329 sc->sc_irq_res = NULL;
330 }
331 if (sc->sc_io_res) {
332 bus_release_resource(self, SYS_RES_MEMORY, 0,
333 sc->sc_io_res);
334 sc->sc_io_res = NULL;
335 }
336 usb_bus_mem_free_all(&sc->sc_bus, &ehci_iterate_hw_softc);
337
338 return (0);
339}
340
341static int
342err_intr(void *arg)
343{
344 ehci_softc_t *sc = arg;
345 unsigned int cause;
346
347 cause = EREAD4(sc, USB_BRIDGE_INTR_CAUSE);
348 if (cause) {
349 printf("IRQ ERR: cause: 0x%08x\n", cause);
350 if (cause & MV_USB_ADDR_DECODE_ERR)
351 printf("IRQ ERR: Address decoding error\n");
352 if (cause & MV_USB_HOST_UNDERFLOW)
353 printf("IRQ ERR: USB Host Underflow\n");
354 if (cause & MV_USB_HOST_OVERFLOW)
355 printf("IRQ ERR: USB Host Overflow\n");
356 if (cause & MV_USB_DEVICE_UNDERFLOW)
357 printf("IRQ ERR: USB Device Underflow\n");
358 if (cause & ~(MV_USB_ADDR_DECODE_ERR | MV_USB_HOST_UNDERFLOW |
359 MV_USB_HOST_OVERFLOW | MV_USB_DEVICE_UNDERFLOW))
360 printf("IRQ ERR: Unknown error\n");
361
362 EWRITE4(sc, USB_BRIDGE_INTR_CAUSE, 0);
363 }
364 return (FILTER_HANDLED);
365}
366
367static device_method_t ehci_methods[] = {
368 /* Device interface */
369 DEVMETHOD(device_probe, mv_ehci_probe),
370 DEVMETHOD(device_attach, mv_ehci_attach),
371 DEVMETHOD(device_detach, mv_ehci_detach),
372 DEVMETHOD(device_suspend, mv_ehci_suspend),
373 DEVMETHOD(device_resume, mv_ehci_resume),
374 DEVMETHOD(device_shutdown, mv_ehci_shutdown),
375
376 /* Bus interface */
377 DEVMETHOD(bus_print_child, bus_generic_print_child),
378
379 {0, 0}
380};
381
382static driver_t ehci_driver = {
383 "ehci",
384 ehci_methods,
385 sizeof(ehci_softc_t),
386};
387
388static devclass_t ehci_devclass;
389
390DRIVER_MODULE(ehci, simplebus, ehci_driver, ehci_devclass, 0, 0);
391MODULE_DEPEND(ehci, usb, 1, 1, 1);
| 229 err_intr, NULL, sc, &ih_err);
230 if (err) {
231 device_printf(self, "Could not setup error irq, %d\n", err);
232 ih_err = NULL;
233 goto error;
234 }
235
236 EWRITE4(sc, USB_BRIDGE_INTR_MASK, MV_USB_ADDR_DECODE_ERR |
237 MV_USB_HOST_UNDERFLOW | MV_USB_HOST_OVERFLOW |
238 MV_USB_DEVICE_UNDERFLOW);
239
240 err = bus_setup_intr(self, sc->sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE,
241 NULL, (driver_intr_t *)ehci_interrupt, sc, &sc->sc_intr_hdl);
242 if (err) {
243 device_printf(self, "Could not setup irq, %d\n", err);
244 sc->sc_intr_hdl = NULL;
245 goto error;
246 }
247
248 /*
249 * Workaround for Marvell integrated EHCI controller: reset of
250 * the EHCI core clears the USBMODE register, which sets the core in
251 * an undefined state (neither host nor agent), so it needs to be set
252 * again for proper operation.
253 *
254 * Refer to errata document MV-S500832-00D.pdf (p. 5.24 GL USB-2) for
255 * details.
256 */
257 sc->sc_flags |= EHCI_SCFLG_SETMODE;
258 if (bootverbose)
259 device_printf(self, "5.24 GL USB-2 workaround enabled\n");
260
261 /* XXX all MV chips need it? */
262 sc->sc_flags |= EHCI_SCFLG_FORCESPEED | EHCI_SCFLG_NORESTERM;
263
264 err = ehci_init(sc);
265 if (!err) {
266 err = device_probe_and_attach(sc->sc_bus.bdev);
267 }
268 if (err) {
269 device_printf(self, "USB init failed err=%d\n", err);
270 goto error;
271 }
272 return (0);
273
274error:
275 mv_ehci_detach(self);
276 return (ENXIO);
277}
278
279static int
280mv_ehci_detach(device_t self)
281{
282 ehci_softc_t *sc = device_get_softc(self);
283 device_t bdev;
284 int err;
285
286 if (sc->sc_bus.bdev) {
287 bdev = sc->sc_bus.bdev;
288 device_detach(bdev);
289 device_delete_child(self, bdev);
290 }
291 /* during module unload there are lots of children leftover */
292 device_delete_all_children(self);
293
294 /*
295 * disable interrupts that might have been switched on in ehci_init
296 */
297 if (sc->sc_io_res) {
298 EWRITE4(sc, EHCI_USBINTR, 0);
299 EWRITE4(sc, USB_BRIDGE_INTR_MASK, 0);
300 }
301 if (sc->sc_irq_res && sc->sc_intr_hdl) {
302 /*
303 * only call ehci_detach() after ehci_init()
304 */
305 ehci_detach(sc);
306
307 err = bus_teardown_intr(self, sc->sc_irq_res, sc->sc_intr_hdl);
308
309 if (err)
310 /* XXX or should we panic? */
311 device_printf(self, "Could not tear down irq, %d\n",
312 err);
313 sc->sc_intr_hdl = NULL;
314 }
315 if (irq_err && ih_err) {
316 err = bus_teardown_intr(self, irq_err, ih_err);
317
318 if (err)
319 device_printf(self, "Could not tear down irq, %d\n",
320 err);
321 ih_err = NULL;
322 }
323 if (irq_err) {
324 bus_release_resource(self, SYS_RES_IRQ, 0, irq_err);
325 irq_err = NULL;
326 }
327 if (sc->sc_irq_res) {
328 bus_release_resource(self, SYS_RES_IRQ, 1, sc->sc_irq_res);
329 sc->sc_irq_res = NULL;
330 }
331 if (sc->sc_io_res) {
332 bus_release_resource(self, SYS_RES_MEMORY, 0,
333 sc->sc_io_res);
334 sc->sc_io_res = NULL;
335 }
336 usb_bus_mem_free_all(&sc->sc_bus, &ehci_iterate_hw_softc);
337
338 return (0);
339}
340
341static int
342err_intr(void *arg)
343{
344 ehci_softc_t *sc = arg;
345 unsigned int cause;
346
347 cause = EREAD4(sc, USB_BRIDGE_INTR_CAUSE);
348 if (cause) {
349 printf("IRQ ERR: cause: 0x%08x\n", cause);
350 if (cause & MV_USB_ADDR_DECODE_ERR)
351 printf("IRQ ERR: Address decoding error\n");
352 if (cause & MV_USB_HOST_UNDERFLOW)
353 printf("IRQ ERR: USB Host Underflow\n");
354 if (cause & MV_USB_HOST_OVERFLOW)
355 printf("IRQ ERR: USB Host Overflow\n");
356 if (cause & MV_USB_DEVICE_UNDERFLOW)
357 printf("IRQ ERR: USB Device Underflow\n");
358 if (cause & ~(MV_USB_ADDR_DECODE_ERR | MV_USB_HOST_UNDERFLOW |
359 MV_USB_HOST_OVERFLOW | MV_USB_DEVICE_UNDERFLOW))
360 printf("IRQ ERR: Unknown error\n");
361
362 EWRITE4(sc, USB_BRIDGE_INTR_CAUSE, 0);
363 }
364 return (FILTER_HANDLED);
365}
366
367static device_method_t ehci_methods[] = {
368 /* Device interface */
369 DEVMETHOD(device_probe, mv_ehci_probe),
370 DEVMETHOD(device_attach, mv_ehci_attach),
371 DEVMETHOD(device_detach, mv_ehci_detach),
372 DEVMETHOD(device_suspend, mv_ehci_suspend),
373 DEVMETHOD(device_resume, mv_ehci_resume),
374 DEVMETHOD(device_shutdown, mv_ehci_shutdown),
375
376 /* Bus interface */
377 DEVMETHOD(bus_print_child, bus_generic_print_child),
378
379 {0, 0}
380};
381
382static driver_t ehci_driver = {
383 "ehci",
384 ehci_methods,
385 sizeof(ehci_softc_t),
386};
387
388static devclass_t ehci_devclass;
389
390DRIVER_MODULE(ehci, simplebus, ehci_driver, ehci_devclass, 0, 0);
391MODULE_DEPEND(ehci, usb, 1, 1, 1);
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