u3g.c revision 188989
1/*
2 * Copyright (c) 2008 AnyWi Technologies
3 * Author: Andrea Guzzo <aguzzo@anywi.com>
4 * * based on uark.c 1.1 2006/08/14 08:30:22 jsg *
5 * * parts from ubsa.c 183348 2008-09-25 12:00:56Z phk *
6 *
7 * Permission to use, copy, modify, and distribute this software for any
8 * purpose with or without fee is hereby granted, provided that the above
9 * copyright notice and this permission notice appear in all copies.
10 *
11 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
12 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
13 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
14 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
15 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
16 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
17 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18 *
19 * $FreeBSD: head/sys/dev/usb/serial/u3g.c 188989 2009-02-24 05:35:48Z thompsa $
20 */
21
22/*
23 * NOTE:
24 *
25 * - The detour through the tty layer is ridiculously expensive wrt
26 *   buffering due to the high speeds.
27 *
28 *   We should consider adding a simple r/w device which allows
29 *   attaching of PPP in a more efficient way.
30 *
31 */
32
33#include "usbdevs.h"
34#include <dev/usb/usb.h>
35#include <dev/usb/usb_mfunc.h>
36#include <dev/usb/usb_error.h>
37#include <dev/usb/usb_defs.h>
38
39#define	USB_DEBUG_VAR u3g_debug
40
41#include <dev/usb/usb_core.h>
42#include <dev/usb/usb_debug.h>
43#include <dev/usb/usb_process.h>
44#include <dev/usb/usb_request.h>
45#include <dev/usb/usb_lookup.h>
46#include <dev/usb/usb_util.h>
47#include <dev/usb/usb_busdma.h>
48#include <dev/usb/usb_msctest.h>
49#include <dev/usb/usb_dynamic.h>
50#include <dev/usb/usb_device.h>
51
52#include <dev/usb/serial/usb_serial.h>
53
54#if USB_DEBUG
55static int u3g_debug = 0;
56
57SYSCTL_NODE(_hw_usb2, OID_AUTO, u3g, CTLFLAG_RW, 0, "USB 3g");
58SYSCTL_INT(_hw_usb2_u3g, OID_AUTO, debug, CTLFLAG_RW,
59    &u3g_debug, 0, "Debug level");
60#endif
61
62#define	U3G_MAXPORTS		4
63#define	U3G_CONFIG_INDEX	0
64#define	U3G_BSIZE		2048
65
66#define	U3GSP_GPRS		0
67#define	U3GSP_EDGE		1
68#define	U3GSP_CDMA		2
69#define	U3GSP_UMTS		3
70#define	U3GSP_HSDPA		4
71#define	U3GSP_HSUPA		5
72#define	U3GSP_HSPA		6
73#define	U3GSP_MAX		7
74
75#define	U3GFL_NONE		0x0000	/* No flags */
76#define	U3GFL_HUAWEI_INIT	0x0001	/* Init command required */
77#define	U3GFL_SCSI_EJECT	0x0002	/* SCSI eject command required */
78#define	U3GFL_SIERRA_INIT	0x0004	/* Init command required */
79#define	U3GFL_SAEL_M460_INIT	0x0008	/* Init device */
80
81enum {
82	U3G_BULK_WR,
83	U3G_BULK_RD,
84	U3G_N_TRANSFER,
85};
86
87struct u3g_softc {
88	struct usb2_com_super_softc sc_super_ucom;
89	struct usb2_com_softc sc_ucom[U3G_MAXPORTS];
90
91	struct usb2_xfer *sc_xfer[U3G_MAXPORTS][U3G_N_TRANSFER];
92	struct usb2_device *sc_udev;
93
94	uint8_t	sc_lsr;			/* local status register */
95	uint8_t	sc_msr;			/* U3G status register */
96	uint8_t	sc_numports;
97};
98
99static device_probe_t u3g_probe;
100static device_attach_t u3g_attach;
101static device_detach_t u3g_detach;
102
103static usb2_callback_t u3g_write_callback;
104static usb2_callback_t u3g_read_callback;
105
106static void u3g_start_read(struct usb2_com_softc *ucom);
107static void u3g_stop_read(struct usb2_com_softc *ucom);
108static void u3g_start_write(struct usb2_com_softc *ucom);
109static void u3g_stop_write(struct usb2_com_softc *ucom);
110
111static int u3g_driver_loaded(struct module *mod, int what, void *arg);
112
113static const struct usb2_config u3g_config[U3G_N_TRANSFER] = {
114
115	[U3G_BULK_WR] = {
116		.type = UE_BULK,
117		.endpoint = UE_ADDR_ANY,
118		.direction = UE_DIR_OUT,
119		.mh.bufsize = U3G_BSIZE,/* bytes */
120		.mh.flags = {.pipe_bof = 1,.force_short_xfer = 1,},
121		.mh.callback = &u3g_write_callback,
122	},
123
124	[U3G_BULK_RD] = {
125		.type = UE_BULK,
126		.endpoint = UE_ADDR_ANY,
127		.direction = UE_DIR_IN,
128		.mh.bufsize = U3G_BSIZE,/* bytes */
129		.mh.flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
130		.mh.callback = &u3g_read_callback,
131	},
132};
133
134static const struct usb2_com_callback u3g_callback = {
135	.usb2_com_start_read = &u3g_start_read,
136	.usb2_com_stop_read = &u3g_stop_read,
137	.usb2_com_start_write = &u3g_start_write,
138	.usb2_com_stop_write = &u3g_stop_write,
139};
140
141static device_method_t u3g_methods[] = {
142	DEVMETHOD(device_probe, u3g_probe),
143	DEVMETHOD(device_attach, u3g_attach),
144	DEVMETHOD(device_detach, u3g_detach),
145	{0, 0}
146};
147
148static devclass_t u3g_devclass;
149
150static driver_t u3g_driver = {
151	.name = "u3g",
152	.methods = u3g_methods,
153	.size = sizeof(struct u3g_softc),
154};
155
156DRIVER_MODULE(u3g, ushub, u3g_driver, u3g_devclass, u3g_driver_loaded, 0);
157MODULE_DEPEND(u3g, ucom, 1, 1, 1);
158MODULE_DEPEND(u3g, usb, 1, 1, 1);
159
160static const struct usb2_device_id u3g_devs[] = {
161	/* OEM: Option */
162	{USB_VPI(USB_VENDOR_OPTION, USB_PRODUCT_OPTION_GT3G, U3GFL_NONE)},
163	{USB_VPI(USB_VENDOR_OPTION, USB_PRODUCT_OPTION_GT3GQUAD, U3GFL_NONE)},
164	{USB_VPI(USB_VENDOR_OPTION, USB_PRODUCT_OPTION_GT3GPLUS, U3GFL_NONE)},
165	{USB_VPI(USB_VENDOR_OPTION, USB_PRODUCT_OPTION_GTMAX36, U3GFL_NONE)},
166	{USB_VPI(USB_VENDOR_OPTION, USB_PRODUCT_OPTION_GTMAXHSUPA, U3GFL_NONE)},
167	{USB_VPI(USB_VENDOR_OPTION, USB_PRODUCT_OPTION_VODAFONEMC3G, U3GFL_NONE)},
168	/* OEM: Qualcomm, Inc. */
169	{USB_VPI(USB_VENDOR_QUALCOMMINC, USB_PRODUCT_QUALCOMMINC_ZTE_STOR, U3GFL_SCSI_EJECT)},
170	{USB_VPI(USB_VENDOR_QUALCOMMINC, USB_PRODUCT_QUALCOMMINC_CDMA_MSM, U3GFL_SCSI_EJECT)},
171	/* OEM: Huawei */
172	{USB_VPI(USB_VENDOR_HUAWEI, USB_PRODUCT_HUAWEI_MOBILE, U3GFL_HUAWEI_INIT)},
173	{USB_VPI(USB_VENDOR_HUAWEI, USB_PRODUCT_HUAWEI_E220, U3GFL_HUAWEI_INIT)},
174	/* OEM: Novatel */
175	{USB_VPI(USB_VENDOR_NOVATEL, USB_PRODUCT_NOVATEL_CDMA_MODEM, U3GFL_SCSI_EJECT)},
176	{USB_VPI(USB_VENDOR_NOVATEL, USB_PRODUCT_NOVATEL_ES620, U3GFL_SCSI_EJECT)},
177	{USB_VPI(USB_VENDOR_NOVATEL, USB_PRODUCT_NOVATEL_MC950D, U3GFL_SCSI_EJECT)},
178	{USB_VPI(USB_VENDOR_NOVATEL, USB_PRODUCT_NOVATEL_U720, U3GFL_SCSI_EJECT)},
179	{USB_VPI(USB_VENDOR_NOVATEL, USB_PRODUCT_NOVATEL_U727, U3GFL_SCSI_EJECT)},
180	{USB_VPI(USB_VENDOR_NOVATEL, USB_PRODUCT_NOVATEL_U740, U3GFL_SCSI_EJECT)},
181	{USB_VPI(USB_VENDOR_NOVATEL, USB_PRODUCT_NOVATEL_U740_2, U3GFL_SCSI_EJECT)},
182	{USB_VPI(USB_VENDOR_NOVATEL, USB_PRODUCT_NOVATEL_U870, U3GFL_SCSI_EJECT)},
183	{USB_VPI(USB_VENDOR_NOVATEL, USB_PRODUCT_NOVATEL_V620, U3GFL_SCSI_EJECT)},
184	{USB_VPI(USB_VENDOR_NOVATEL, USB_PRODUCT_NOVATEL_V640, U3GFL_SCSI_EJECT)},
185	{USB_VPI(USB_VENDOR_NOVATEL, USB_PRODUCT_NOVATEL_V720, U3GFL_SCSI_EJECT)},
186	{USB_VPI(USB_VENDOR_NOVATEL, USB_PRODUCT_NOVATEL_V740, U3GFL_SCSI_EJECT)},
187	{USB_VPI(USB_VENDOR_NOVATEL, USB_PRODUCT_NOVATEL_X950D, U3GFL_SCSI_EJECT)},
188	{USB_VPI(USB_VENDOR_NOVATEL, USB_PRODUCT_NOVATEL_XU870, U3GFL_SCSI_EJECT)},
189	{USB_VPI(USB_VENDOR_NOVATEL, USB_PRODUCT_NOVATEL_ZEROCD, U3GFL_SCSI_EJECT)},
190	{USB_VPI(USB_VENDOR_DELL, USB_PRODUCT_DELL_U740, U3GFL_SCSI_EJECT)},
191	/* OEM: Merlin */
192	{USB_VPI(USB_VENDOR_MERLIN, USB_PRODUCT_MERLIN_V620, U3GFL_NONE)},
193	/* OEM: Sierra Wireless: */
194	{USB_VPI(USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_AIRCARD580, U3GFL_NONE)},
195	{USB_VPI(USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_AIRCARD595, U3GFL_NONE)},
196	{USB_VPI(USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_AC595U, U3GFL_NONE)},
197	{USB_VPI(USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_AC597E, U3GFL_NONE)},
198	{USB_VPI(USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_C597, U3GFL_NONE)},
199	{USB_VPI(USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_AC880, U3GFL_NONE)},
200	{USB_VPI(USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_AC880E, U3GFL_NONE)},
201	{USB_VPI(USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_AC880U, U3GFL_NONE)},
202	{USB_VPI(USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_AC881, U3GFL_NONE)},
203	{USB_VPI(USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_AC881E, U3GFL_NONE)},
204	{USB_VPI(USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_AC881U, U3GFL_NONE)},
205	{USB_VPI(USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_EM5625, U3GFL_NONE)},
206	{USB_VPI(USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_MC5720, U3GFL_NONE)},
207	{USB_VPI(USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_MC5720_2, U3GFL_NONE)},
208	{USB_VPI(USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_MC5725, U3GFL_NONE)},
209	{USB_VPI(USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_MINI5725, U3GFL_NONE)},
210	{USB_VPI(USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_AIRCARD875, U3GFL_NONE)},
211	{USB_VPI(USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_MC8755, U3GFL_NONE)},
212	{USB_VPI(USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_MC8755_2, U3GFL_NONE)},
213	{USB_VPI(USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_MC8755_3, U3GFL_NONE)},
214	{USB_VPI(USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_MC8765, U3GFL_NONE)},
215	{USB_VPI(USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_AC875U, U3GFL_NONE)},
216	{USB_VPI(USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_MC8775_2, U3GFL_NONE)},
217	{USB_VPI(USB_VENDOR_HP, USB_PRODUCT_HP_HS2300, U3GFL_NONE)},
218	{USB_VPI(USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_MC8780, U3GFL_NONE)},
219	{USB_VPI(USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_MC8781, U3GFL_NONE)},
220	{USB_VPI(USB_VENDOR_HP, USB_PRODUCT_HP_HS2300, U3GFL_NONE)},
221	/* Sierra TruInstaller device ID */
222	{USB_VPI(USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_TRUINSTALL, U3GFL_SIERRA_INIT)},
223	/* PRUEBA SILABS */
224	{USB_VPI(USB_VENDOR_SILABS, USB_PRODUCT_SILABS_SAEL, U3GFL_SAEL_M460_INIT)},
225};
226
227static void
228u3g_sierra_init(struct usb2_device *udev)
229{
230	struct usb2_device_request req;
231
232	DPRINTFN(0, "\n");
233
234	req.bmRequestType = UT_VENDOR;
235	req.bRequest = UR_SET_INTERFACE;
236	USETW(req.wValue, UF_DEVICE_REMOTE_WAKEUP);
237	USETW(req.wIndex, UHF_PORT_CONNECTION);
238	USETW(req.wLength, 0);
239
240	if (usb2_do_request_flags(udev, NULL, &req,
241	    NULL, 0, NULL, USB_MS_HZ)) {
242		/* ignore any errors */
243	}
244	return;
245}
246
247static void
248u3g_huawei_init(struct usb2_device *udev)
249{
250	struct usb2_device_request req;
251
252	DPRINTFN(0, "\n");
253
254	req.bmRequestType = UT_WRITE_DEVICE;
255	req.bRequest = UR_SET_FEATURE;
256	USETW(req.wValue, UF_DEVICE_REMOTE_WAKEUP);
257	USETW(req.wIndex, UHF_PORT_SUSPEND);
258	USETW(req.wLength, 0);
259
260	if (usb2_do_request_flags(udev, NULL, &req,
261	    NULL, 0, NULL, USB_MS_HZ)) {
262		/* ignore any errors */
263	}
264	return;
265}
266
267static void
268u3g_sael_m460_init(struct usb2_device *udev)
269{
270	static const uint8_t setup[][24] = {
271	     { 0x41, 0x11, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
272	     { 0x41, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00 },
273	     { 0x41, 0x13, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00,
274	       0x01, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00,
275	       0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
276	     { 0xc1, 0x0f, 0x00, 0x00, 0x00, 0x00, 0x40, 0x02 },
277	     { 0xc1, 0x08, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00 },
278	     { 0x41, 0x07, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00 },
279	     { 0xc1, 0x0f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 },
280	     { 0x41, 0x01, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00 },
281	     { 0x41, 0x07, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00 },
282	     { 0x41, 0x03, 0x00, 0x08, 0x00, 0x00, 0x00, 0x00 },
283	     { 0x41, 0x19, 0x00, 0x00, 0x00, 0x00, 0x06, 0x00,
284	       0x00, 0x00, 0x00, 0x00, 0x11, 0x13 },
285	     { 0x41, 0x13, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00,
286	       0x09, 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00,
287	       0x0a, 0x00, 0x00, 0x00, 0x0a, 0x00, 0x00, 0x00 },
288	     { 0x41, 0x12, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00 },
289	     { 0x41, 0x01, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00 },
290	     { 0x41, 0x07, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00 },
291	     { 0x41, 0x03, 0x00, 0x08, 0x00, 0x00, 0x00, 0x00 },
292	     { 0x41, 0x19, 0x00, 0x00, 0x00, 0x00, 0x06, 0x00,
293	       0x00, 0x00, 0x00, 0x00, 0x11, 0x13 },
294	     { 0x41, 0x13, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00,
295	       0x09, 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00,
296	       0x0a, 0x00, 0x00, 0x00, 0x0a, 0x00, 0x00, 0x00 },
297	     { 0x41, 0x07, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00 },
298	};
299
300	struct usb2_device_request req;
301	uint16_t len;
302	uint8_t buf[0x300];
303	uint8_t n;
304
305	DPRINTFN(1, "\n");
306
307	if (usb2_req_set_alt_interface_no(udev, NULL, 0, 0)) {
308		DPRINTFN(0, "Alt setting 0 failed\n");
309		return;
310	}
311
312	for (n = 0; n != (sizeof(setup)/sizeof(setup[0])); n++) {
313
314		memcpy(&req, setup[n], sizeof(req));
315
316		len = UGETW(req.wLength);
317		if (req.bmRequestType & UE_DIR_IN) {
318			if (len > sizeof(buf)) {
319				DPRINTFN(0, "too small buffer\n");
320				continue;
321			}
322			if (usb2_do_request(udev, NULL, &req, buf)) {
323				DPRINTFN(0, "request %u failed\n",
324				    (unsigned int)n);
325				break;
326			}
327		} else {
328			if (len > (sizeof(setup[0]) - 8)) {
329				DPRINTFN(0, "too small buffer\n");
330				continue;
331			}
332			if (usb2_do_request(udev, NULL, &req,
333			    __DECONST(uint8_t *, &setup[n][8]))) {
334				DPRINTFN(0, "request %u failed\n",
335				    (unsigned int)n);
336				break;
337			}
338		}
339	}
340	return;
341}
342
343static int
344u3g_lookup_huawei(struct usb2_attach_arg *uaa)
345{
346	/* Calling the lookup function will also set the driver info! */
347	return (usb2_lookup_id_by_uaa(u3g_devs, sizeof(u3g_devs), uaa));
348}
349
350/*
351 * The following function handles 3G modem devices (E220, Mobile,
352 * etc.) with auto-install flash disks for Windows/MacOSX on the first
353 * interface.  After some command or some delay they change appearance
354 * to a modem.
355 */
356static usb2_error_t
357u3g_test_huawei_autoinst(struct usb2_device *udev,
358    struct usb2_attach_arg *uaa)
359{
360	struct usb2_interface *iface;
361	struct usb2_interface_descriptor *id;
362	uint32_t flags;
363
364	if (udev == NULL) {
365		return (USB_ERR_INVAL);
366	}
367	iface = usb2_get_iface(udev, 0);
368	if (iface == NULL) {
369		return (USB_ERR_INVAL);
370	}
371	id = iface->idesc;
372	if (id == NULL) {
373		return (USB_ERR_INVAL);
374	}
375	if (id->bInterfaceClass != UICLASS_MASS) {
376		return (USB_ERR_INVAL);
377	}
378	if (u3g_lookup_huawei(uaa)) {
379		/* no device match */
380		return (USB_ERR_INVAL);
381	}
382	flags = USB_GET_DRIVER_INFO(uaa);
383
384	if (flags & U3GFL_HUAWEI_INIT) {
385		u3g_huawei_init(udev);
386	} else if (flags & U3GFL_SCSI_EJECT) {
387		return (usb2_test_autoinstall(udev, 0, 1));
388	} else if (flags & U3GFL_SIERRA_INIT) {
389		u3g_sierra_init(udev);
390	} else {
391		/* no quirks */
392		return (USB_ERR_INVAL);
393	}
394	return (0);			/* success */
395}
396
397static int
398u3g_driver_loaded(struct module *mod, int what, void *arg)
399{
400	switch (what) {
401	case MOD_LOAD:
402		/* register our autoinstall handler */
403		usb2_test_huawei_autoinst_p = &u3g_test_huawei_autoinst;
404		break;
405	case MOD_UNLOAD:
406		usb2_test_huawei_unload(NULL);
407		break;
408	default:
409		return (EOPNOTSUPP);
410	}
411 	return (0);
412}
413
414static int
415u3g_probe(device_t self)
416{
417	struct usb2_attach_arg *uaa = device_get_ivars(self);
418
419	if (uaa->usb2_mode != USB_MODE_HOST) {
420		return (ENXIO);
421	}
422	if (uaa->info.bConfigIndex != U3G_CONFIG_INDEX) {
423		return (ENXIO);
424	}
425	if (uaa->info.bInterfaceClass != UICLASS_VENDOR) {
426		return (ENXIO);
427	}
428	return (u3g_lookup_huawei(uaa));
429}
430
431static int
432u3g_attach(device_t dev)
433{
434	struct usb2_config u3g_config_tmp[U3G_N_TRANSFER];
435	struct usb2_attach_arg *uaa = device_get_ivars(dev);
436	struct u3g_softc *sc = device_get_softc(dev);
437	struct usb2_interface *iface;
438	struct usb2_interface_descriptor *id;
439	uint32_t flags;
440	uint8_t m;
441	uint8_t n;
442	uint8_t i;
443	uint8_t x;
444	int error;
445
446	DPRINTF("sc=%p\n", sc);
447
448	flags = USB_GET_DRIVER_INFO(uaa);
449
450	if (flags & U3GFL_SAEL_M460_INIT)
451		u3g_sael_m460_init(uaa->device);
452
453	/* copy in USB config */
454	for (n = 0; n != U3G_N_TRANSFER; n++)
455		u3g_config_tmp[n] = u3g_config[n];
456
457	device_set_usb2_desc(dev);
458
459	sc->sc_udev = uaa->device;
460
461	x = 0;		/* interface index */
462	i = 0;		/* endpoint index */
463	m = 0;		/* number of ports */
464
465	while (m != U3G_MAXPORTS) {
466
467		/* update BULK endpoint index */
468		for (n = 0; n != U3G_N_TRANSFER; n++)
469			u3g_config_tmp[n].ep_index = i;
470
471		iface = usb2_get_iface(uaa->device, x);
472		if (iface == NULL) {
473			if (m != 0)
474				break;	/* end of interfaces */
475			DPRINTF("did not find any modem endpoints\n");
476			goto detach;
477		}
478
479		id = usb2_get_interface_descriptor(iface);
480		if ((id == NULL) ||
481		    (id->bInterfaceClass != UICLASS_VENDOR)) {
482			/* next interface */
483			x++;
484			i = 0;
485			continue;
486		}
487
488		/* try to allocate a set of BULK endpoints */
489		error = usb2_transfer_setup(uaa->device, &x,
490		    sc->sc_xfer[m], u3g_config_tmp, U3G_N_TRANSFER,
491		    &sc->sc_ucom[m], &Giant);
492		if (error) {
493			/* next interface */
494			x++;
495			i = 0;
496			continue;
497		}
498
499		/* grab other interface, if any */
500                if (x != uaa->info.bIfaceIndex)
501                        usb2_set_parent_iface(uaa->device, x,
502                            uaa->info.bIfaceIndex);
503
504		/* set stall by default */
505		usb2_transfer_set_stall(sc->sc_xfer[m][U3G_BULK_WR]);
506		usb2_transfer_set_stall(sc->sc_xfer[m][U3G_BULK_RD]);
507
508		m++;	/* found one port */
509		i++;	/* next endpoint index */
510	}
511
512	sc->sc_numports = m;
513
514	error = usb2_com_attach(&sc->sc_super_ucom, sc->sc_ucom,
515	    sc->sc_numports, sc, &u3g_callback, &Giant);
516	if (error) {
517		DPRINTF("usb2_com_attach failed\n");
518		goto detach;
519	}
520	if (sc->sc_numports != 1) {
521		/* be verbose */
522		device_printf(dev, "Found %u ports.\n",
523		    (unsigned int)sc->sc_numports);
524	}
525	return (0);
526
527detach:
528	u3g_detach(dev);
529	return (ENXIO);
530}
531
532static int
533u3g_detach(device_t dev)
534{
535	struct u3g_softc *sc = device_get_softc(dev);
536	uint8_t m;
537
538	DPRINTF("sc=%p\n", sc);
539
540	/* NOTE: It is not dangerous to detach more ports than attached! */
541	usb2_com_detach(&sc->sc_super_ucom, sc->sc_ucom, U3G_MAXPORTS);
542
543	for (m = 0; m != U3G_MAXPORTS; m++)
544		usb2_transfer_unsetup(sc->sc_xfer[m], U3G_N_TRANSFER);
545
546	return (0);
547}
548
549static void
550u3g_start_read(struct usb2_com_softc *ucom)
551{
552	struct u3g_softc *sc = ucom->sc_parent;
553
554	/* start read endpoint */
555	usb2_transfer_start(sc->sc_xfer[ucom->sc_local_unit][U3G_BULK_RD]);
556	return;
557}
558
559static void
560u3g_stop_read(struct usb2_com_softc *ucom)
561{
562	struct u3g_softc *sc = ucom->sc_parent;
563
564	/* stop read endpoint */
565	usb2_transfer_stop(sc->sc_xfer[ucom->sc_local_unit][U3G_BULK_RD]);
566	return;
567}
568
569static void
570u3g_start_write(struct usb2_com_softc *ucom)
571{
572	struct u3g_softc *sc = ucom->sc_parent;
573
574	usb2_transfer_start(sc->sc_xfer[ucom->sc_local_unit][U3G_BULK_WR]);
575	return;
576}
577
578static void
579u3g_stop_write(struct usb2_com_softc *ucom)
580{
581	struct u3g_softc *sc = ucom->sc_parent;
582
583	usb2_transfer_stop(sc->sc_xfer[ucom->sc_local_unit][U3G_BULK_WR]);
584	return;
585}
586
587static void
588u3g_write_callback(struct usb2_xfer *xfer)
589{
590	struct usb2_com_softc *ucom = xfer->priv_sc;
591	uint32_t actlen;
592
593	switch (USB_GET_STATE(xfer)) {
594	case USB_ST_TRANSFERRED:
595	case USB_ST_SETUP:
596tr_setup:
597		if (usb2_com_get_data(ucom, xfer->frbuffers, 0,
598		    U3G_BSIZE, &actlen)) {
599			xfer->frlengths[0] = actlen;
600			usb2_start_hardware(xfer);
601		}
602		break;
603
604	default:			/* Error */
605		if (xfer->error != USB_ERR_CANCELLED) {
606			/* do a builtin clear-stall */
607			xfer->flags.stall_pipe = 1;
608			goto tr_setup;
609		}
610		break;
611	}
612	return;
613}
614
615static void
616u3g_read_callback(struct usb2_xfer *xfer)
617{
618	struct usb2_com_softc *ucom = xfer->priv_sc;
619
620	switch (USB_GET_STATE(xfer)) {
621	case USB_ST_TRANSFERRED:
622		usb2_com_put_data(ucom, xfer->frbuffers, 0, xfer->actlen);
623
624	case USB_ST_SETUP:
625tr_setup:
626		xfer->frlengths[0] = xfer->max_data_length;
627		usb2_start_hardware(xfer);
628		break;
629
630	default:			/* Error */
631		if (xfer->error != USB_ERR_CANCELLED) {
632			/* do a builtin clear-stall */
633			xfer->flags.stall_pipe = 1;
634			goto tr_setup;
635		}
636		break;
637	}
638	return;
639}
640