xref: /freebsd/sys/dev/usb/serial/u3g.c (revision b7c60aadbbd5c846a250c05791fe7406d6d78bf4)
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  * $FreeBSD$
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 
34 #include <sys/stdint.h>
35 #include <sys/stddef.h>
36 #include <sys/param.h>
37 #include <sys/queue.h>
38 #include <sys/types.h>
39 #include <sys/systm.h>
40 #include <sys/kernel.h>
41 #include <sys/bus.h>
42 #include <sys/module.h>
43 #include <sys/lock.h>
44 #include <sys/mutex.h>
45 #include <sys/condvar.h>
46 #include <sys/sysctl.h>
47 #include <sys/sx.h>
48 #include <sys/unistd.h>
49 #include <sys/callout.h>
50 #include <sys/malloc.h>
51 #include <sys/priv.h>
52 
53 #include <dev/usb/usb.h>
54 #include <dev/usb/usbdi.h>
55 #include <dev/usb/usbdi_util.h>
56 #include "usbdevs.h"
57 
58 #define	USB_DEBUG_VAR u3g_debug
59 #include <dev/usb/usb_debug.h>
60 #include <dev/usb/usb_process.h>
61 #include <dev/usb/usb_msctest.h>
62 
63 #include <dev/usb/serial/usb_serial.h>
64 #include <dev/usb/quirk/usb_quirk.h>
65 
66 #ifdef USB_DEBUG
67 static int u3g_debug = 0;
68 
69 static SYSCTL_NODE(_hw_usb, OID_AUTO, u3g, CTLFLAG_RW, 0, "USB 3g");
70 SYSCTL_INT(_hw_usb_u3g, OID_AUTO, debug, CTLFLAG_RW,
71     &u3g_debug, 0, "Debug level");
72 #endif
73 
74 #define	U3G_MAXPORTS		12
75 #define	U3G_CONFIG_INDEX	0
76 #define	U3G_BSIZE		2048
77 
78 #define	U3GSP_GPRS		0
79 #define	U3GSP_EDGE		1
80 #define	U3GSP_CDMA		2
81 #define	U3GSP_UMTS		3
82 #define	U3GSP_HSDPA		4
83 #define	U3GSP_HSUPA		5
84 #define	U3GSP_HSPA		6
85 #define	U3GSP_MAX		7
86 
87 /* Eject methods; See also usb_quirks.h:UQ_MSC_EJECT_* */
88 #define	U3GINIT_HUAWEI		1	/* Requires Huawei init command */
89 #define	U3GINIT_SIERRA		2	/* Requires Sierra init command */
90 #define	U3GINIT_SCSIEJECT	3	/* Requires SCSI eject command */
91 #define	U3GINIT_REZERO		4	/* Requires SCSI rezero command */
92 #define	U3GINIT_ZTESTOR		5	/* Requires ZTE SCSI command */
93 #define	U3GINIT_CMOTECH		6	/* Requires CMOTECH SCSI command */
94 #define	U3GINIT_WAIT		7	/* Device reappears after a delay */
95 #define	U3GINIT_SAEL_M460	8	/* Requires vendor init */
96 #define	U3GINIT_HUAWEISCSI	9	/* Requires Huawei SCSI init command */
97 #define	U3GINIT_TCT		10	/* Requires TCT Mobile init command */
98 
99 enum {
100 	U3G_BULK_WR,
101 	U3G_BULK_RD,
102 	U3G_N_TRANSFER,
103 };
104 
105 struct u3g_softc {
106 	struct ucom_super_softc sc_super_ucom;
107 	struct ucom_softc sc_ucom[U3G_MAXPORTS];
108 
109 	struct usb_xfer *sc_xfer[U3G_MAXPORTS][U3G_N_TRANSFER];
110 	struct usb_device *sc_udev;
111 	struct mtx sc_mtx;
112 
113 	uint8_t	sc_lsr;			/* local status register */
114 	uint8_t	sc_msr;			/* U3G status register */
115 	uint8_t	sc_numports;
116 };
117 
118 static device_probe_t u3g_probe;
119 static device_attach_t u3g_attach;
120 static device_detach_t u3g_detach;
121 
122 static usb_callback_t u3g_write_callback;
123 static usb_callback_t u3g_read_callback;
124 
125 static void u3g_start_read(struct ucom_softc *ucom);
126 static void u3g_stop_read(struct ucom_softc *ucom);
127 static void u3g_start_write(struct ucom_softc *ucom);
128 static void u3g_stop_write(struct ucom_softc *ucom);
129 
130 
131 static void u3g_test_autoinst(void *, struct usb_device *,
132 		struct usb_attach_arg *);
133 static int u3g_driver_loaded(struct module *mod, int what, void *arg);
134 
135 static eventhandler_tag u3g_etag;
136 
137 static const struct usb_config u3g_config[U3G_N_TRANSFER] = {
138 
139 	[U3G_BULK_WR] = {
140 		.type = UE_BULK,
141 		.endpoint = UE_ADDR_ANY,
142 		.direction = UE_DIR_OUT,
143 		.bufsize = U3G_BSIZE,/* bytes */
144 		.flags = {.pipe_bof = 1,.force_short_xfer = 1,},
145 		.callback = &u3g_write_callback,
146 	},
147 
148 	[U3G_BULK_RD] = {
149 		.type = UE_BULK,
150 		.endpoint = UE_ADDR_ANY,
151 		.direction = UE_DIR_IN,
152 		.bufsize = U3G_BSIZE,/* bytes */
153 		.flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
154 		.callback = &u3g_read_callback,
155 	},
156 };
157 
158 static const struct ucom_callback u3g_callback = {
159 	.ucom_start_read = &u3g_start_read,
160 	.ucom_stop_read = &u3g_stop_read,
161 	.ucom_start_write = &u3g_start_write,
162 	.ucom_stop_write = &u3g_stop_write,
163 };
164 
165 static device_method_t u3g_methods[] = {
166 	DEVMETHOD(device_probe, u3g_probe),
167 	DEVMETHOD(device_attach, u3g_attach),
168 	DEVMETHOD(device_detach, u3g_detach),
169 	{0, 0}
170 };
171 
172 static devclass_t u3g_devclass;
173 
174 static driver_t u3g_driver = {
175 	.name = "u3g",
176 	.methods = u3g_methods,
177 	.size = sizeof(struct u3g_softc),
178 };
179 
180 DRIVER_MODULE(u3g, uhub, u3g_driver, u3g_devclass, u3g_driver_loaded, 0);
181 MODULE_DEPEND(u3g, ucom, 1, 1, 1);
182 MODULE_DEPEND(u3g, usb, 1, 1, 1);
183 MODULE_VERSION(u3g, 1);
184 
185 static const STRUCT_USB_HOST_ID u3g_devs[] = {
186 #define	U3G_DEV(v,p,i) { USB_VPI(USB_VENDOR_##v, USB_PRODUCT_##v##_##p, i) }
187 	U3G_DEV(ACERP, H10, 0),
188 	U3G_DEV(AIRPLUS, MCD650, 0),
189 	U3G_DEV(AIRPRIME, PC5220, 0),
190 	U3G_DEV(ALINK, 3G, 0),
191 	U3G_DEV(ALINK, 3GU, 0),
192 	U3G_DEV(ALINK, DWM652U5, 0),
193 	U3G_DEV(AMOI, H01, 0),
194 	U3G_DEV(AMOI, H01A, 0),
195 	U3G_DEV(AMOI, H02, 0),
196 	U3G_DEV(ANYDATA, ADU_500A, 0),
197 	U3G_DEV(ANYDATA, ADU_620UW, 0),
198 	U3G_DEV(ANYDATA, ADU_E100X, 0),
199 	U3G_DEV(AXESSTEL, DATAMODEM, 0),
200 	U3G_DEV(CMOTECH, CDMA_MODEM1, 0),
201 	U3G_DEV(CMOTECH, CGU628, U3GINIT_CMOTECH),
202 	U3G_DEV(DELL, U5500, 0),
203 	U3G_DEV(DELL, U5505, 0),
204 	U3G_DEV(DELL, U5510, 0),
205 	U3G_DEV(DELL, U5520, 0),
206 	U3G_DEV(DELL, U5520_2, 0),
207 	U3G_DEV(DELL, U5520_3, 0),
208 	U3G_DEV(DELL, U5700, 0),
209 	U3G_DEV(DELL, U5700_2, 0),
210 	U3G_DEV(DELL, U5700_3, 0),
211 	U3G_DEV(DELL, U5700_4, 0),
212 	U3G_DEV(DELL, U5720, 0),
213 	U3G_DEV(DELL, U5720_2, 0),
214 	U3G_DEV(DELL, U5730, 0),
215 	U3G_DEV(DELL, U5730_2, 0),
216 	U3G_DEV(DELL, U5730_3, 0),
217 	U3G_DEV(DELL, U740, 0),
218 	U3G_DEV(DLINK3, DWM652, 0),
219 	U3G_DEV(HP, EV2200, 0),
220 	U3G_DEV(HP, HS2300, 0),
221 	U3G_DEV(HUAWEI, E1401, U3GINIT_HUAWEI),
222 	U3G_DEV(HUAWEI, E1402, U3GINIT_HUAWEI),
223 	U3G_DEV(HUAWEI, E1403, U3GINIT_HUAWEI),
224 	U3G_DEV(HUAWEI, E1404, U3GINIT_HUAWEI),
225 	U3G_DEV(HUAWEI, E1405, U3GINIT_HUAWEI),
226 	U3G_DEV(HUAWEI, E1406, U3GINIT_HUAWEI),
227 	U3G_DEV(HUAWEI, E1407, U3GINIT_HUAWEI),
228 	U3G_DEV(HUAWEI, E1408, U3GINIT_HUAWEI),
229 	U3G_DEV(HUAWEI, E1409, U3GINIT_HUAWEI),
230 	U3G_DEV(HUAWEI, E140A, U3GINIT_HUAWEI),
231 	U3G_DEV(HUAWEI, E140B, U3GINIT_HUAWEI),
232 	U3G_DEV(HUAWEI, E140D, U3GINIT_HUAWEI),
233 	U3G_DEV(HUAWEI, E140E, U3GINIT_HUAWEI),
234 	U3G_DEV(HUAWEI, E140F, U3GINIT_HUAWEI),
235 	U3G_DEV(HUAWEI, E1410, U3GINIT_HUAWEI),
236 	U3G_DEV(HUAWEI, E1411, U3GINIT_HUAWEI),
237 	U3G_DEV(HUAWEI, E1412, U3GINIT_HUAWEI),
238 	U3G_DEV(HUAWEI, E1413, U3GINIT_HUAWEI),
239 	U3G_DEV(HUAWEI, E1414, U3GINIT_HUAWEI),
240 	U3G_DEV(HUAWEI, E1415, U3GINIT_HUAWEI),
241 	U3G_DEV(HUAWEI, E1416, U3GINIT_HUAWEI),
242 	U3G_DEV(HUAWEI, E1417, U3GINIT_HUAWEI),
243 	U3G_DEV(HUAWEI, E1418, U3GINIT_HUAWEI),
244 	U3G_DEV(HUAWEI, E1419, U3GINIT_HUAWEI),
245 	U3G_DEV(HUAWEI, E141A, U3GINIT_HUAWEI),
246 	U3G_DEV(HUAWEI, E141B, U3GINIT_HUAWEI),
247 	U3G_DEV(HUAWEI, E141C, U3GINIT_HUAWEI),
248 	U3G_DEV(HUAWEI, E141D, U3GINIT_HUAWEI),
249 	U3G_DEV(HUAWEI, E141E, U3GINIT_HUAWEI),
250 	U3G_DEV(HUAWEI, E141F, U3GINIT_HUAWEI),
251 	U3G_DEV(HUAWEI, E1420, U3GINIT_HUAWEI),
252 	U3G_DEV(HUAWEI, E1421, U3GINIT_HUAWEI),
253 	U3G_DEV(HUAWEI, E1422, U3GINIT_HUAWEI),
254 	U3G_DEV(HUAWEI, E1423, U3GINIT_HUAWEI),
255 	U3G_DEV(HUAWEI, E1424, U3GINIT_HUAWEI),
256 	U3G_DEV(HUAWEI, E1425, U3GINIT_HUAWEI),
257 	U3G_DEV(HUAWEI, E1426, U3GINIT_HUAWEI),
258 	U3G_DEV(HUAWEI, E1427, U3GINIT_HUAWEI),
259 	U3G_DEV(HUAWEI, E1428, U3GINIT_HUAWEI),
260 	U3G_DEV(HUAWEI, E1429, U3GINIT_HUAWEI),
261 	U3G_DEV(HUAWEI, E142A, U3GINIT_HUAWEI),
262 	U3G_DEV(HUAWEI, E142B, U3GINIT_HUAWEI),
263 	U3G_DEV(HUAWEI, E142C, U3GINIT_HUAWEI),
264 	U3G_DEV(HUAWEI, E142D, U3GINIT_HUAWEI),
265 	U3G_DEV(HUAWEI, E142E, U3GINIT_HUAWEI),
266 	U3G_DEV(HUAWEI, E142F, U3GINIT_HUAWEI),
267 	U3G_DEV(HUAWEI, E1430, U3GINIT_HUAWEI),
268 	U3G_DEV(HUAWEI, E1431, U3GINIT_HUAWEI),
269 	U3G_DEV(HUAWEI, E1432, U3GINIT_HUAWEI),
270 	U3G_DEV(HUAWEI, E1433, U3GINIT_HUAWEI),
271 	U3G_DEV(HUAWEI, E1434, U3GINIT_HUAWEI),
272 	U3G_DEV(HUAWEI, E1435, U3GINIT_HUAWEI),
273 	U3G_DEV(HUAWEI, E1436, U3GINIT_HUAWEI),
274 	U3G_DEV(HUAWEI, E1437, U3GINIT_HUAWEI),
275 	U3G_DEV(HUAWEI, E1438, U3GINIT_HUAWEI),
276 	U3G_DEV(HUAWEI, E1439, U3GINIT_HUAWEI),
277 	U3G_DEV(HUAWEI, E143A, U3GINIT_HUAWEI),
278 	U3G_DEV(HUAWEI, E143B, U3GINIT_HUAWEI),
279 	U3G_DEV(HUAWEI, E143C, U3GINIT_HUAWEI),
280 	U3G_DEV(HUAWEI, E143D, U3GINIT_HUAWEI),
281 	U3G_DEV(HUAWEI, E143E, U3GINIT_HUAWEI),
282 	U3G_DEV(HUAWEI, E143F, U3GINIT_HUAWEI),
283 	U3G_DEV(HUAWEI, E173, 0),
284 	U3G_DEV(HUAWEI, E173_INIT, U3GINIT_HUAWEISCSI),
285 	U3G_DEV(HUAWEI, E180V, U3GINIT_HUAWEI),
286 	U3G_DEV(HUAWEI, E220, U3GINIT_HUAWEI),
287 	U3G_DEV(HUAWEI, E220BIS, U3GINIT_HUAWEI),
288 	U3G_DEV(HUAWEI, MOBILE, U3GINIT_HUAWEI),
289 	U3G_DEV(HUAWEI, E1752, U3GINIT_HUAWEISCSI),
290 	U3G_DEV(HUAWEI, E1820, U3GINIT_HUAWEISCSI),
291 	U3G_DEV(HUAWEI, K3765, U3GINIT_HUAWEI),
292 	U3G_DEV(HUAWEI, K3765_INIT, U3GINIT_HUAWEISCSI),
293 	U3G_DEV(KYOCERA2, CDMA_MSM_K, 0),
294 	U3G_DEV(KYOCERA2, KPC680, 0),
295 	U3G_DEV(LONGCHEER, WM66, U3GINIT_HUAWEI),
296 	U3G_DEV(LONGCHEER, DISK, U3GINIT_TCT),
297 	U3G_DEV(LONGCHEER, W14, 0),
298 	U3G_DEV(LONGCHEER, XSSTICK, 0),
299 	U3G_DEV(MERLIN, V620, 0),
300 	U3G_DEV(NEOTEL, PRIME, 0),
301 	U3G_DEV(NOVATEL, E725, 0),
302 	U3G_DEV(NOVATEL, ES620, 0),
303 	U3G_DEV(NOVATEL, ES620_2, 0),
304 	U3G_DEV(NOVATEL, EU730, 0),
305 	U3G_DEV(NOVATEL, EU740, 0),
306 	U3G_DEV(NOVATEL, EU870D, 0),
307 	U3G_DEV(NOVATEL, MC760, 0),
308 	U3G_DEV(NOVATEL, MC547, 0),
309 	U3G_DEV(NOVATEL, MC950D, 0),
310 	U3G_DEV(NOVATEL, U720, 0),
311 	U3G_DEV(NOVATEL, U727, 0),
312 	U3G_DEV(NOVATEL, U727_2, 0),
313 	U3G_DEV(NOVATEL, U740, 0),
314 	U3G_DEV(NOVATEL, U740_2, 0),
315 	U3G_DEV(NOVATEL, U760, U3GINIT_SCSIEJECT),
316 	U3G_DEV(NOVATEL, U870, 0),
317 	U3G_DEV(NOVATEL, V620, 0),
318 	U3G_DEV(NOVATEL, V640, 0),
319 	U3G_DEV(NOVATEL, V720, 0),
320 	U3G_DEV(NOVATEL, V740, 0),
321 	U3G_DEV(NOVATEL, X950D, 0),
322 	U3G_DEV(NOVATEL, XU870, 0),
323 	U3G_DEV(OPTION, E6500, 0),
324 	U3G_DEV(OPTION, E6501, 0),
325 	U3G_DEV(OPTION, E6601, 0),
326 	U3G_DEV(OPTION, E6721, 0),
327 	U3G_DEV(OPTION, E6741, 0),
328 	U3G_DEV(OPTION, E6761, 0),
329 	U3G_DEV(OPTION, E6800, 0),
330 	U3G_DEV(OPTION, E7021, 0),
331 	U3G_DEV(OPTION, E7041, 0),
332 	U3G_DEV(OPTION, E7061, 0),
333 	U3G_DEV(OPTION, E7100, 0),
334 	U3G_DEV(OPTION, GE40X, 0),
335 	U3G_DEV(OPTION, GT3G, 0),
336 	U3G_DEV(OPTION, GT3GPLUS, 0),
337 	U3G_DEV(OPTION, GT3GQUAD, 0),
338 	U3G_DEV(OPTION, GT3G_1, 0),
339 	U3G_DEV(OPTION, GT3G_2, 0),
340 	U3G_DEV(OPTION, GT3G_3, 0),
341 	U3G_DEV(OPTION, GT3G_4, 0),
342 	U3G_DEV(OPTION, GT3G_5, 0),
343 	U3G_DEV(OPTION, GT3G_6, 0),
344 	U3G_DEV(OPTION, GTHSDPA, 0),
345 	U3G_DEV(OPTION, GTM380, 0),
346 	U3G_DEV(OPTION, GTMAX36, 0),
347 	U3G_DEV(OPTION, GTMAX380HSUPAE, 0),
348 	U3G_DEV(OPTION, GTMAXHSUPA, 0),
349 	U3G_DEV(OPTION, GTMAXHSUPAE, 0),
350 	U3G_DEV(OPTION, VODAFONEMC3G, 0),
351 	U3G_DEV(QISDA, H20_1, 0),
352 	U3G_DEV(QISDA, H20_2, 0),
353 	U3G_DEV(QISDA, H21_1, 0),
354 	U3G_DEV(QISDA, H21_2, 0),
355 	U3G_DEV(QUALCOMM2, AC8700, 0),
356 	U3G_DEV(QUALCOMM2, MF330, 0),
357 	U3G_DEV(QUALCOMM2, VW110L, U3GINIT_SCSIEJECT),
358 	U3G_DEV(QUALCOMMINC, AC2726, 0),
359 	U3G_DEV(QUALCOMMINC, AC8700, 0),
360 	U3G_DEV(QUALCOMMINC, AC8710, 0),
361 	U3G_DEV(QUALCOMMINC, CDMA_MSM, U3GINIT_SCSIEJECT),
362 	U3G_DEV(QUALCOMMINC, E0002, 0),
363 	U3G_DEV(QUALCOMMINC, E0003, 0),
364 	U3G_DEV(QUALCOMMINC, E0004, 0),
365 	U3G_DEV(QUALCOMMINC, E0005, 0),
366 	U3G_DEV(QUALCOMMINC, E0006, 0),
367 	U3G_DEV(QUALCOMMINC, E0007, 0),
368 	U3G_DEV(QUALCOMMINC, E0008, 0),
369 	U3G_DEV(QUALCOMMINC, E0009, 0),
370 	U3G_DEV(QUALCOMMINC, E000A, 0),
371 	U3G_DEV(QUALCOMMINC, E000B, 0),
372 	U3G_DEV(QUALCOMMINC, E000C, 0),
373 	U3G_DEV(QUALCOMMINC, E000D, 0),
374 	U3G_DEV(QUALCOMMINC, E000E, 0),
375 	U3G_DEV(QUALCOMMINC, E000F, 0),
376 	U3G_DEV(QUALCOMMINC, E0010, 0),
377 	U3G_DEV(QUALCOMMINC, E0011, 0),
378 	U3G_DEV(QUALCOMMINC, E0012, 0),
379 	U3G_DEV(QUALCOMMINC, E0013, 0),
380 	U3G_DEV(QUALCOMMINC, E0014, 0),
381 	U3G_DEV(QUALCOMMINC, E0017, 0),
382 	U3G_DEV(QUALCOMMINC, E0018, 0),
383 	U3G_DEV(QUALCOMMINC, E0019, 0),
384 	U3G_DEV(QUALCOMMINC, E0020, 0),
385 	U3G_DEV(QUALCOMMINC, E0021, 0),
386 	U3G_DEV(QUALCOMMINC, E0022, 0),
387 	U3G_DEV(QUALCOMMINC, E0023, 0),
388 	U3G_DEV(QUALCOMMINC, E0024, 0),
389 	U3G_DEV(QUALCOMMINC, E0025, 0),
390 	U3G_DEV(QUALCOMMINC, E0026, 0),
391 	U3G_DEV(QUALCOMMINC, E0027, 0),
392 	U3G_DEV(QUALCOMMINC, E0028, 0),
393 	U3G_DEV(QUALCOMMINC, E0029, 0),
394 	U3G_DEV(QUALCOMMINC, E0030, 0),
395 	U3G_DEV(QUALCOMMINC, E0032, 0),
396 	U3G_DEV(QUALCOMMINC, E0033, 0),
397 	U3G_DEV(QUALCOMMINC, E0037, 0),
398 	U3G_DEV(QUALCOMMINC, E0039, 0),
399 	U3G_DEV(QUALCOMMINC, E0042, 0),
400 	U3G_DEV(QUALCOMMINC, E0043, 0),
401 	U3G_DEV(QUALCOMMINC, E0048, 0),
402 	U3G_DEV(QUALCOMMINC, E0049, 0),
403 	U3G_DEV(QUALCOMMINC, E0051, 0),
404 	U3G_DEV(QUALCOMMINC, E0052, 0),
405 	U3G_DEV(QUALCOMMINC, E0054, 0),
406 	U3G_DEV(QUALCOMMINC, E0055, 0),
407 	U3G_DEV(QUALCOMMINC, E0057, 0),
408 	U3G_DEV(QUALCOMMINC, E0058, 0),
409 	U3G_DEV(QUALCOMMINC, E0059, 0),
410 	U3G_DEV(QUALCOMMINC, E0060, 0),
411 	U3G_DEV(QUALCOMMINC, E0061, 0),
412 	U3G_DEV(QUALCOMMINC, E0062, 0),
413 	U3G_DEV(QUALCOMMINC, E0063, 0),
414 	U3G_DEV(QUALCOMMINC, E0064, 0),
415 	U3G_DEV(QUALCOMMINC, E0066, 0),
416 	U3G_DEV(QUALCOMMINC, E0069, 0),
417 	U3G_DEV(QUALCOMMINC, E0070, 0),
418 	U3G_DEV(QUALCOMMINC, E0073, 0),
419 	U3G_DEV(QUALCOMMINC, E0076, 0),
420 	U3G_DEV(QUALCOMMINC, E0078, 0),
421 	U3G_DEV(QUALCOMMINC, E0082, 0),
422 	U3G_DEV(QUALCOMMINC, E0086, 0),
423 	U3G_DEV(QUALCOMMINC, SURFSTICK, 0),
424 	U3G_DEV(QUALCOMMINC, E2002, 0),
425 	U3G_DEV(QUALCOMMINC, E2003, 0),
426 	U3G_DEV(QUALCOMMINC, MF626, 0),
427 	U3G_DEV(QUALCOMMINC, MF628, 0),
428 	U3G_DEV(QUALCOMMINC, MF633R, 0),
429 	U3G_DEV(QUANTA, GKE, 0),
430 	U3G_DEV(QUANTA, GLE, 0),
431 	U3G_DEV(QUANTA, GLX, 0),
432 	U3G_DEV(QUANTA, Q101, 0),
433 	U3G_DEV(QUANTA, Q111, 0),
434 	U3G_DEV(SIERRA, AC402, 0),
435 	U3G_DEV(SIERRA, AC595U, 0),
436 	U3G_DEV(SIERRA, AC597E, 0),
437 	U3G_DEV(SIERRA, AC875E, 0),
438 	U3G_DEV(SIERRA, AC875U, 0),
439 	U3G_DEV(SIERRA, AC875U_2, 0),
440 	U3G_DEV(SIERRA, AC880, 0),
441 	U3G_DEV(SIERRA, AC880E, 0),
442 	U3G_DEV(SIERRA, AC880U, 0),
443 	U3G_DEV(SIERRA, AC881, 0),
444 	U3G_DEV(SIERRA, AC881E, 0),
445 	U3G_DEV(SIERRA, AC881U, 0),
446 	U3G_DEV(SIERRA, AC885E, 0),
447 	U3G_DEV(SIERRA, AC885E_2, 0),
448 	U3G_DEV(SIERRA, AC885U, 0),
449 	U3G_DEV(SIERRA, AIRCARD580, 0),
450 	U3G_DEV(SIERRA, AIRCARD595, 0),
451 	U3G_DEV(SIERRA, AIRCARD875, 0),
452 	U3G_DEV(SIERRA, C22, 0),
453 	U3G_DEV(SIERRA, C597, 0),
454 	U3G_DEV(SIERRA, C888, 0),
455 	U3G_DEV(SIERRA, E0029, 0),
456 	U3G_DEV(SIERRA, E6892, 0),
457 	U3G_DEV(SIERRA, E6893, 0),
458 	U3G_DEV(SIERRA, EM5625, 0),
459 	U3G_DEV(SIERRA, EM5725, 0),
460 	U3G_DEV(SIERRA, MC5720, 0),
461 	U3G_DEV(SIERRA, MC5720_2, 0),
462 	U3G_DEV(SIERRA, MC5725, 0),
463 	U3G_DEV(SIERRA, MC5727, 0),
464 	U3G_DEV(SIERRA, MC5727_2, 0),
465 	U3G_DEV(SIERRA, MC5728, 0),
466 	U3G_DEV(SIERRA, MC8700, 0),
467 	U3G_DEV(SIERRA, MC8755, 0),
468 	U3G_DEV(SIERRA, MC8755_2, 0),
469 	U3G_DEV(SIERRA, MC8755_3, 0),
470 	U3G_DEV(SIERRA, MC8755_4, 0),
471 	U3G_DEV(SIERRA, MC8765, 0),
472 	U3G_DEV(SIERRA, MC8765_2, 0),
473 	U3G_DEV(SIERRA, MC8765_3, 0),
474 	U3G_DEV(SIERRA, MC8775, 0),
475 	U3G_DEV(SIERRA, MC8775_2, 0),
476 	U3G_DEV(SIERRA, MC8780, 0),
477 	U3G_DEV(SIERRA, MC8780_2, 0),
478 	U3G_DEV(SIERRA, MC8780_3, 0),
479 	U3G_DEV(SIERRA, MC8781, 0),
480 	U3G_DEV(SIERRA, MC8781_2, 0),
481 	U3G_DEV(SIERRA, MC8781_3, 0),
482 	U3G_DEV(SIERRA, MC8785, 0),
483 	U3G_DEV(SIERRA, MC8785_2, 0),
484 	U3G_DEV(SIERRA, MC8790, 0),
485 	U3G_DEV(SIERRA, MC8791, 0),
486 	U3G_DEV(SIERRA, MC8792, 0),
487 	U3G_DEV(SIERRA, MINI5725, 0),
488 	U3G_DEV(SIERRA, T11, 0),
489 	U3G_DEV(SIERRA, T598, 0),
490 	U3G_DEV(SILABS, SAEL, U3GINIT_SAEL_M460),
491 	U3G_DEV(STELERA, C105, 0),
492 	U3G_DEV(STELERA, E1003, 0),
493 	U3G_DEV(STELERA, E1004, 0),
494 	U3G_DEV(STELERA, E1005, 0),
495 	U3G_DEV(STELERA, E1006, 0),
496 	U3G_DEV(STELERA, E1007, 0),
497 	U3G_DEV(STELERA, E1008, 0),
498 	U3G_DEV(STELERA, E1009, 0),
499 	U3G_DEV(STELERA, E100A, 0),
500 	U3G_DEV(STELERA, E100B, 0),
501 	U3G_DEV(STELERA, E100C, 0),
502 	U3G_DEV(STELERA, E100D, 0),
503 	U3G_DEV(STELERA, E100E, 0),
504 	U3G_DEV(STELERA, E100F, 0),
505 	U3G_DEV(STELERA, E1010, 0),
506 	U3G_DEV(STELERA, E1011, 0),
507 	U3G_DEV(STELERA, E1012, 0),
508 	U3G_DEV(TCTMOBILE, X060S, 0),
509 	U3G_DEV(TCTMOBILE, X080S, U3GINIT_TCT),
510 	U3G_DEV(TELIT, UC864E, 0),
511 	U3G_DEV(TELIT, UC864G, 0),
512 	U3G_DEV(TLAYTECH, TEU800, 0),
513 	U3G_DEV(TOSHIBA, G450, 0),
514 	U3G_DEV(TOSHIBA, HSDPA, 0),
515 	U3G_DEV(YISO, C893, 0),
516 	/* Autoinstallers */
517 	U3G_DEV(NOVATEL, ZEROCD, U3GINIT_SCSIEJECT),
518 	U3G_DEV(OPTION, GTICON322, U3GINIT_REZERO),
519 	U3G_DEV(QUALCOMMINC, ZTE_STOR, U3GINIT_ZTESTOR),
520 	U3G_DEV(QUALCOMMINC, ZTE_STOR2, U3GINIT_SCSIEJECT),
521 	U3G_DEV(QUANTA, Q101_STOR, U3GINIT_SCSIEJECT),
522 	U3G_DEV(SIERRA, TRUINSTALL, U3GINIT_SIERRA),
523 #undef	U3G_DEV
524 };
525 
526 static int
527 u3g_sierra_init(struct usb_device *udev)
528 {
529 	struct usb_device_request req;
530 
531 	req.bmRequestType = UT_VENDOR;
532 	req.bRequest = UR_SET_INTERFACE;
533 	USETW(req.wValue, UF_DEVICE_REMOTE_WAKEUP);
534 	USETW(req.wIndex, UHF_PORT_CONNECTION);
535 	USETW(req.wLength, 0);
536 
537 	if (usbd_do_request_flags(udev, NULL, &req,
538 	    NULL, 0, NULL, USB_MS_HZ)) {
539 		/* ignore any errors */
540 	}
541 	return (0);
542 }
543 
544 static int
545 u3g_huawei_init(struct usb_device *udev)
546 {
547 	struct usb_device_request req;
548 
549 	req.bmRequestType = UT_WRITE_DEVICE;
550 	req.bRequest = UR_SET_FEATURE;
551 	USETW(req.wValue, UF_DEVICE_REMOTE_WAKEUP);
552 	USETW(req.wIndex, UHF_PORT_SUSPEND);
553 	USETW(req.wLength, 0);
554 
555 	if (usbd_do_request_flags(udev, NULL, &req,
556 	    NULL, 0, NULL, USB_MS_HZ)) {
557 		/* ignore any errors */
558 	}
559 	return (0);
560 }
561 
562 static void
563 u3g_sael_m460_init(struct usb_device *udev)
564 {
565 	static const uint8_t setup[][24] = {
566 	     { 0x41, 0x11, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
567 	     { 0x41, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00 },
568 	     { 0x41, 0x13, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00,
569 	       0x01, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00,
570 	       0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
571 	     { 0xc1, 0x0f, 0x00, 0x00, 0x00, 0x00, 0x40, 0x02 },
572 	     { 0xc1, 0x08, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00 },
573 	     { 0x41, 0x07, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00 },
574 	     { 0xc1, 0x0f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 },
575 	     { 0x41, 0x01, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00 },
576 	     { 0x41, 0x07, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00 },
577 	     { 0x41, 0x03, 0x00, 0x08, 0x00, 0x00, 0x00, 0x00 },
578 	     { 0x41, 0x19, 0x00, 0x00, 0x00, 0x00, 0x06, 0x00,
579 	       0x00, 0x00, 0x00, 0x00, 0x11, 0x13 },
580 	     { 0x41, 0x13, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00,
581 	       0x09, 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00,
582 	       0x0a, 0x00, 0x00, 0x00, 0x0a, 0x00, 0x00, 0x00 },
583 	     { 0x41, 0x12, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00 },
584 	     { 0x41, 0x01, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00 },
585 	     { 0x41, 0x07, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00 },
586 	     { 0x41, 0x03, 0x00, 0x08, 0x00, 0x00, 0x00, 0x00 },
587 	     { 0x41, 0x19, 0x00, 0x00, 0x00, 0x00, 0x06, 0x00,
588 	       0x00, 0x00, 0x00, 0x00, 0x11, 0x13 },
589 	     { 0x41, 0x13, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00,
590 	       0x09, 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00,
591 	       0x0a, 0x00, 0x00, 0x00, 0x0a, 0x00, 0x00, 0x00 },
592 	     { 0x41, 0x07, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00 },
593 	};
594 
595 	struct usb_device_request req;
596 	usb_error_t err;
597 	uint16_t len;
598 	uint8_t buf[0x300];
599 	uint8_t n;
600 
601 	DPRINTFN(1, "\n");
602 
603 	if (usbd_req_set_alt_interface_no(udev, NULL, 0, 0)) {
604 		DPRINTFN(0, "Alt setting 0 failed\n");
605 		return;
606 	}
607 
608 	for (n = 0; n != (sizeof(setup)/sizeof(setup[0])); n++) {
609 
610 		memcpy(&req, setup[n], sizeof(req));
611 
612 		len = UGETW(req.wLength);
613 		if (req.bmRequestType & UE_DIR_IN) {
614 			if (len > sizeof(buf)) {
615 				DPRINTFN(0, "too small buffer\n");
616 				continue;
617 			}
618 			err = usbd_do_request(udev, NULL, &req, buf);
619 		} else {
620 			if (len > (sizeof(setup[0]) - 8)) {
621 				DPRINTFN(0, "too small buffer\n");
622 				continue;
623 			}
624 			err = usbd_do_request(udev, NULL, &req,
625 			    __DECONST(uint8_t *, &setup[n][8]));
626 		}
627 		if (err) {
628 			DPRINTFN(1, "request %u failed\n",
629 			    (unsigned int)n);
630 			/*
631 			 * Some of the requests will fail. Stop doing
632 			 * requests when we are getting timeouts so
633 			 * that we don't block the explore/attach
634 			 * thread forever.
635 			 */
636 			if (err == USB_ERR_TIMEOUT)
637 				break;
638 		}
639 	}
640 }
641 
642 /*
643  * The following function handles 3G modem devices (E220, Mobile,
644  * etc.) with auto-install flash disks for Windows/MacOSX on the first
645  * interface.  After some command or some delay they change appearance
646  * to a modem.
647  */
648 static void
649 u3g_test_autoinst(void *arg, struct usb_device *udev,
650     struct usb_attach_arg *uaa)
651 {
652 	struct usb_interface *iface;
653 	struct usb_interface_descriptor *id;
654 	int error;
655 	unsigned long method;
656 
657 	if (uaa->dev_state != UAA_DEV_READY)
658 		return;
659 
660 	iface = usbd_get_iface(udev, 0);
661 	if (iface == NULL)
662 		return;
663 	id = iface->idesc;
664 	if (id == NULL || id->bInterfaceClass != UICLASS_MASS)
665 		return;
666 
667 	if (usb_test_quirk(uaa, UQ_MSC_EJECT_HUAWEI))
668 		method = U3GINIT_HUAWEI;
669 	else if (usb_test_quirk(uaa, UQ_MSC_EJECT_SIERRA))
670 		method = U3GINIT_SIERRA;
671 	else if (usb_test_quirk(uaa, UQ_MSC_EJECT_SCSIEJECT))
672 		method = U3GINIT_SCSIEJECT;
673 	else if (usb_test_quirk(uaa, UQ_MSC_EJECT_REZERO))
674 		method = U3GINIT_REZERO;
675 	else if (usb_test_quirk(uaa, UQ_MSC_EJECT_ZTESTOR))
676 		method = U3GINIT_ZTESTOR;
677 	else if (usb_test_quirk(uaa, UQ_MSC_EJECT_CMOTECH))
678 		method = U3GINIT_CMOTECH;
679 	else if (usb_test_quirk(uaa, UQ_MSC_EJECT_WAIT))
680 		method = U3GINIT_WAIT;
681 	else if (usb_test_quirk(uaa, UQ_MSC_EJECT_HUAWEISCSI))
682 		method = U3GINIT_HUAWEISCSI;
683 	else if (usb_test_quirk(uaa, UQ_MSC_EJECT_TCT))
684 		method = U3GINIT_TCT;
685 	else if (usbd_lookup_id_by_uaa(u3g_devs, sizeof(u3g_devs), uaa) == 0)
686 		method = USB_GET_DRIVER_INFO(uaa);
687 	else
688 		return;		/* no device match */
689 
690 	if (bootverbose) {
691 		printf("Ejecting %s %s using method %ld\n",
692 		       usb_get_manufacturer(udev),
693 		       usb_get_product(udev), method);
694 	}
695 
696 	switch (method) {
697 		case U3GINIT_HUAWEI:
698 			error = u3g_huawei_init(udev);
699 			break;
700 		case U3GINIT_HUAWEISCSI:
701 			error = usb_msc_eject(udev, 0, MSC_EJECT_HUAWEI);
702 			break;
703 		case U3GINIT_SCSIEJECT:
704 			error = usb_msc_eject(udev, 0, MSC_EJECT_STOPUNIT);
705 			break;
706 		case U3GINIT_REZERO:
707 			error = usb_msc_eject(udev, 0, MSC_EJECT_REZERO);
708 			break;
709 		case U3GINIT_ZTESTOR:
710 			error = usb_msc_eject(udev, 0, MSC_EJECT_STOPUNIT);
711 			error |= usb_msc_eject(udev, 0, MSC_EJECT_ZTESTOR);
712 			break;
713 		case U3GINIT_CMOTECH:
714 			error = usb_msc_eject(udev, 0, MSC_EJECT_CMOTECH);
715 			break;
716 		case U3GINIT_TCT:
717 			error = usb_msc_eject(udev, 0, MSC_EJECT_TCT);
718 			break;
719 		case U3GINIT_SIERRA:
720 			error = u3g_sierra_init(udev);
721 			break;
722 		case U3GINIT_WAIT:
723 			/* Just pretend we ejected, the card will timeout */
724 			error = 0;
725 			break;
726 		default:
727 			/* no 3G eject quirks */
728 			error = EOPNOTSUPP;
729 			break;
730 	}
731 	if (error == 0) {
732 		/* success, mark the udev as disappearing */
733 		uaa->dev_state = UAA_DEV_EJECTING;
734 	}
735 }
736 
737 static int
738 u3g_driver_loaded(struct module *mod, int what, void *arg)
739 {
740 	switch (what) {
741 	case MOD_LOAD:
742 		/* register our autoinstall handler */
743 		u3g_etag = EVENTHANDLER_REGISTER(usb_dev_configured,
744 		    u3g_test_autoinst, NULL, EVENTHANDLER_PRI_ANY);
745 		break;
746 	case MOD_UNLOAD:
747 		EVENTHANDLER_DEREGISTER(usb_dev_configured, u3g_etag);
748 		break;
749 	default:
750 		return (EOPNOTSUPP);
751 	}
752  	return (0);
753 }
754 
755 static int
756 u3g_probe(device_t self)
757 {
758 	struct usb_attach_arg *uaa = device_get_ivars(self);
759 
760 	if (uaa->usb_mode != USB_MODE_HOST) {
761 		return (ENXIO);
762 	}
763 	if (uaa->info.bConfigIndex != U3G_CONFIG_INDEX) {
764 		return (ENXIO);
765 	}
766 	if (uaa->info.bInterfaceClass != UICLASS_VENDOR) {
767 		return (ENXIO);
768 	}
769 	return (usbd_lookup_id_by_uaa(u3g_devs, sizeof(u3g_devs), uaa));
770 }
771 
772 static int
773 u3g_attach(device_t dev)
774 {
775 	struct usb_config u3g_config_tmp[U3G_N_TRANSFER];
776 	struct usb_attach_arg *uaa = device_get_ivars(dev);
777 	struct u3g_softc *sc = device_get_softc(dev);
778 	struct usb_interface *iface;
779 	struct usb_interface_descriptor *id;
780 	uint32_t iface_valid;
781 	int error, type, nports;
782 	int ep, n;
783 	uint8_t i;
784 
785 	DPRINTF("sc=%p\n", sc);
786 
787 	type = USB_GET_DRIVER_INFO(uaa);
788 	if (type == U3GINIT_SAEL_M460
789 	    || usb_test_quirk(uaa, UQ_MSC_EJECT_SAEL_M460)) {
790 		u3g_sael_m460_init(uaa->device);
791 	}
792 
793 	/* copy in USB config */
794 	for (n = 0; n != U3G_N_TRANSFER; n++)
795 		u3g_config_tmp[n] = u3g_config[n];
796 
797 	device_set_usb_desc(dev);
798 	mtx_init(&sc->sc_mtx, "u3g", NULL, MTX_DEF);
799 
800 	sc->sc_udev = uaa->device;
801 
802 	/* Claim all interfaces on the device */
803 	iface_valid = 0;
804 	for (i = uaa->info.bIfaceIndex; i < USB_IFACE_MAX; i++) {
805 		iface = usbd_get_iface(uaa->device, i);
806 		if (iface == NULL)
807 			break;
808 		id = usbd_get_interface_descriptor(iface);
809 		if (id == NULL || id->bInterfaceClass != UICLASS_VENDOR)
810 			continue;
811 		usbd_set_parent_iface(uaa->device, i, uaa->info.bIfaceIndex);
812 		iface_valid |= (1<<i);
813 	}
814 
815 	i = 0;		/* interface index */
816 	ep = 0;		/* endpoint index */
817 	nports = 0;	/* number of ports */
818 	while (i < USB_IFACE_MAX) {
819 		if ((iface_valid & (1<<i)) == 0) {
820 			i++;
821 			continue;
822 		}
823 
824 		/* update BULK endpoint index */
825 		for (n = 0; n < U3G_N_TRANSFER; n++)
826 			u3g_config_tmp[n].ep_index = ep;
827 
828 		/* try to allocate a set of BULK endpoints */
829 		error = usbd_transfer_setup(uaa->device, &i,
830 		    sc->sc_xfer[nports], u3g_config_tmp, U3G_N_TRANSFER,
831 		    &sc->sc_ucom[nports], &sc->sc_mtx);
832 		if (error) {
833 			/* next interface */
834 			i++;
835 			ep = 0;
836 			continue;
837 		}
838 
839 		/* set stall by default */
840 		mtx_lock(&sc->sc_mtx);
841 		usbd_xfer_set_stall(sc->sc_xfer[nports][U3G_BULK_WR]);
842 		usbd_xfer_set_stall(sc->sc_xfer[nports][U3G_BULK_RD]);
843 		mtx_unlock(&sc->sc_mtx);
844 
845 		nports++;	/* found one port */
846 		ep++;
847 		if (nports == U3G_MAXPORTS)
848 			break;
849 	}
850 	if (nports == 0) {
851 		device_printf(dev, "no ports found\n");
852 		goto detach;
853 	}
854 	sc->sc_numports = nports;
855 
856 	error = ucom_attach(&sc->sc_super_ucom, sc->sc_ucom,
857 	    sc->sc_numports, sc, &u3g_callback, &sc->sc_mtx);
858 	if (error) {
859 		DPRINTF("ucom_attach failed\n");
860 		goto detach;
861 	}
862 	ucom_set_pnpinfo_usb(&sc->sc_super_ucom, dev);
863 	device_printf(dev, "Found %u port%s.\n", sc->sc_numports,
864 	    sc->sc_numports > 1 ? "s":"");
865 
866 	return (0);
867 
868 detach:
869 	u3g_detach(dev);
870 	return (ENXIO);
871 }
872 
873 static int
874 u3g_detach(device_t dev)
875 {
876 	struct u3g_softc *sc = device_get_softc(dev);
877 	uint8_t subunit;
878 
879 	DPRINTF("sc=%p\n", sc);
880 
881 	/* NOTE: It is not dangerous to detach more ports than attached! */
882 	ucom_detach(&sc->sc_super_ucom, sc->sc_ucom);
883 
884 	for (subunit = 0; subunit != U3G_MAXPORTS; subunit++)
885 		usbd_transfer_unsetup(sc->sc_xfer[subunit], U3G_N_TRANSFER);
886 	mtx_destroy(&sc->sc_mtx);
887 
888 	return (0);
889 }
890 
891 static void
892 u3g_start_read(struct ucom_softc *ucom)
893 {
894 	struct u3g_softc *sc = ucom->sc_parent;
895 
896 	/* start read endpoint */
897 	usbd_transfer_start(sc->sc_xfer[ucom->sc_subunit][U3G_BULK_RD]);
898 	return;
899 }
900 
901 static void
902 u3g_stop_read(struct ucom_softc *ucom)
903 {
904 	struct u3g_softc *sc = ucom->sc_parent;
905 
906 	/* stop read endpoint */
907 	usbd_transfer_stop(sc->sc_xfer[ucom->sc_subunit][U3G_BULK_RD]);
908 	return;
909 }
910 
911 static void
912 u3g_start_write(struct ucom_softc *ucom)
913 {
914 	struct u3g_softc *sc = ucom->sc_parent;
915 
916 	usbd_transfer_start(sc->sc_xfer[ucom->sc_subunit][U3G_BULK_WR]);
917 	return;
918 }
919 
920 static void
921 u3g_stop_write(struct ucom_softc *ucom)
922 {
923 	struct u3g_softc *sc = ucom->sc_parent;
924 
925 	usbd_transfer_stop(sc->sc_xfer[ucom->sc_subunit][U3G_BULK_WR]);
926 	return;
927 }
928 
929 static void
930 u3g_write_callback(struct usb_xfer *xfer, usb_error_t error)
931 {
932 	struct ucom_softc *ucom = usbd_xfer_softc(xfer);
933 	struct usb_page_cache *pc;
934 	uint32_t actlen;
935 
936 	switch (USB_GET_STATE(xfer)) {
937 	case USB_ST_TRANSFERRED:
938 	case USB_ST_SETUP:
939 tr_setup:
940 		pc = usbd_xfer_get_frame(xfer, 0);
941 		if (ucom_get_data(ucom, pc, 0, U3G_BSIZE, &actlen)) {
942 			usbd_xfer_set_frame_len(xfer, 0, actlen);
943 			usbd_transfer_submit(xfer);
944 		}
945 		break;
946 
947 	default:			/* Error */
948 		if (error != USB_ERR_CANCELLED) {
949 			/* do a builtin clear-stall */
950 			usbd_xfer_set_stall(xfer);
951 			goto tr_setup;
952 		}
953 		break;
954 	}
955 	return;
956 }
957 
958 static void
959 u3g_read_callback(struct usb_xfer *xfer, usb_error_t error)
960 {
961 	struct ucom_softc *ucom = usbd_xfer_softc(xfer);
962 	struct usb_page_cache *pc;
963 	int actlen;
964 
965 	usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
966 
967 	switch (USB_GET_STATE(xfer)) {
968 	case USB_ST_TRANSFERRED:
969 		pc = usbd_xfer_get_frame(xfer, 0);
970 		ucom_put_data(ucom, pc, 0, actlen);
971 
972 	case USB_ST_SETUP:
973 tr_setup:
974 		usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
975 		usbd_transfer_submit(xfer);
976 		break;
977 
978 	default:			/* Error */
979 		if (error != USB_ERR_CANCELLED) {
980 			/* do a builtin clear-stall */
981 			usbd_xfer_set_stall(xfer);
982 			goto tr_setup;
983 		}
984 		break;
985 	}
986 	return;
987 }
988