1 /* $NetBSD: uvisor.c,v 1.9 2001/01/23 14:04:14 augustss Exp $ */
2
3 /* Also already merged from NetBSD:
4 * $NetBSD: uvisor.c,v 1.12 2001/11/13 06:24:57 lukem Exp $
5 * $NetBSD: uvisor.c,v 1.13 2002/02/11 15:11:49 augustss Exp $
6 * $NetBSD: uvisor.c,v 1.14 2002/02/27 23:00:03 augustss Exp $
7 * $NetBSD: uvisor.c,v 1.15 2002/06/16 15:01:31 augustss Exp $
8 * $NetBSD: uvisor.c,v 1.16 2002/07/11 21:14:36 augustss Exp $
9 * $NetBSD: uvisor.c,v 1.17 2002/08/13 11:38:15 augustss Exp $
10 * $NetBSD: uvisor.c,v 1.18 2003/02/05 00:50:14 augustss Exp $
11 * $NetBSD: uvisor.c,v 1.19 2003/02/07 18:12:37 augustss Exp $
12 * $NetBSD: uvisor.c,v 1.20 2003/04/11 01:30:10 simonb Exp $
13 */
14
15 /*-
16 * SPDX-License-Identifier: BSD-2-Clause
17 *
18 * Copyright (c) 2000 The NetBSD Foundation, Inc.
19 * All rights reserved.
20 *
21 * This code is derived from software contributed to The NetBSD Foundation
22 * by Lennart Augustsson (lennart@augustsson.net) at
23 * Carlstedt Research & Technology.
24 *
25 * Redistribution and use in source and binary forms, with or without
26 * modification, are permitted provided that the following conditions
27 * are met:
28 * 1. Redistributions of source code must retain the above copyright
29 * notice, this list of conditions and the following disclaimer.
30 * 2. Redistributions in binary form must reproduce the above copyright
31 * notice, this list of conditions and the following disclaimer in the
32 * documentation and/or other materials provided with the distribution.
33 *
34 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
35 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
36 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
37 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
38 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
39 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
40 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
41 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
42 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
43 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
44 * POSSIBILITY OF SUCH DAMAGE.
45 */
46
47 /*
48 * Handspring Visor (Palmpilot compatible PDA) driver
49 */
50
51 #include <sys/stdint.h>
52 #include <sys/stddef.h>
53 #include <sys/param.h>
54 #include <sys/queue.h>
55 #include <sys/types.h>
56 #include <sys/systm.h>
57 #include <sys/kernel.h>
58 #include <sys/bus.h>
59 #include <sys/module.h>
60 #include <sys/lock.h>
61 #include <sys/mutex.h>
62 #include <sys/condvar.h>
63 #include <sys/sysctl.h>
64 #include <sys/sx.h>
65 #include <sys/unistd.h>
66 #include <sys/callout.h>
67 #include <sys/malloc.h>
68 #include <sys/priv.h>
69
70 #include <dev/usb/usb.h>
71 #include <dev/usb/usbdi.h>
72 #include <dev/usb/usbdi_util.h>
73 #include "usbdevs.h"
74
75 #define USB_DEBUG_VAR uvisor_debug
76 #include <dev/usb/usb_debug.h>
77 #include <dev/usb/usb_process.h>
78
79 #include <dev/usb/serial/usb_serial.h>
80
81 #ifdef USB_DEBUG
82 static int uvisor_debug = 0;
83
84 static SYSCTL_NODE(_hw_usb, OID_AUTO, uvisor, CTLFLAG_RW | CTLFLAG_MPSAFE, 0,
85 "USB uvisor");
86 SYSCTL_INT(_hw_usb_uvisor, OID_AUTO, debug, CTLFLAG_RWTUN,
87 &uvisor_debug, 0, "Debug level");
88 #endif
89
90 #define UVISOR_CONFIG_INDEX 0
91 #define UVISOR_IFACE_INDEX 0
92
93 /*
94 * The following buffer sizes are hardcoded due to the way the Palm
95 * firmware works. It looks like the device is not short terminating
96 * the data transferred.
97 */
98 #define UVISORIBUFSIZE 0 /* Use wMaxPacketSize */
99 #define UVISOROBUFSIZE 32 /* bytes */
100 #define UVISOROFRAMES 32 /* units */
101
102 /* From the Linux driver */
103 /*
104 * UVISOR_REQUEST_BYTES_AVAILABLE asks the visor for the number of bytes that
105 * are available to be transferred to the host for the specified endpoint.
106 * Currently this is not used, and always returns 0x0001
107 */
108 #define UVISOR_REQUEST_BYTES_AVAILABLE 0x01
109
110 /*
111 * UVISOR_CLOSE_NOTIFICATION is set to the device to notify it that the host
112 * is now closing the pipe. An empty packet is sent in response.
113 */
114 #define UVISOR_CLOSE_NOTIFICATION 0x02
115
116 /*
117 * UVISOR_GET_CONNECTION_INFORMATION is sent by the host during enumeration to
118 * get the endpoints used by the connection.
119 */
120 #define UVISOR_GET_CONNECTION_INFORMATION 0x03
121
122 /*
123 * UVISOR_GET_CONNECTION_INFORMATION returns data in the following format
124 */
125 #define UVISOR_MAX_CONN 8
126 struct uvisor_connection_info {
127 uWord num_ports;
128 struct {
129 uByte port_function_id;
130 uByte port;
131 } __packed connections[UVISOR_MAX_CONN];
132 } __packed;
133
134 #define UVISOR_CONNECTION_INFO_SIZE 18
135
136 /* struct uvisor_connection_info.connection[x].port defines: */
137 #define UVISOR_ENDPOINT_1 0x01
138 #define UVISOR_ENDPOINT_2 0x02
139
140 /* struct uvisor_connection_info.connection[x].port_function_id defines: */
141 #define UVISOR_FUNCTION_GENERIC 0x00
142 #define UVISOR_FUNCTION_DEBUGGER 0x01
143 #define UVISOR_FUNCTION_HOTSYNC 0x02
144 #define UVISOR_FUNCTION_CONSOLE 0x03
145 #define UVISOR_FUNCTION_REMOTE_FILE_SYS 0x04
146
147 /*
148 * Unknown PalmOS stuff.
149 */
150 #define UVISOR_GET_PALM_INFORMATION 0x04
151 #define UVISOR_GET_PALM_INFORMATION_LEN 0x44
152
153 struct uvisor_palm_connection_info {
154 uByte num_ports;
155 uByte endpoint_numbers_different;
156 uWord reserved1;
157 struct {
158 uDWord port_function_id;
159 uByte port;
160 uByte end_point_info;
161 uWord reserved;
162 } __packed connections[UVISOR_MAX_CONN];
163 } __packed;
164
165 enum {
166 UVISOR_BULK_DT_WR,
167 UVISOR_BULK_DT_RD,
168 UVISOR_N_TRANSFER,
169 };
170
171 struct uvisor_softc {
172 struct ucom_super_softc sc_super_ucom;
173 struct ucom_softc sc_ucom;
174
175 struct usb_xfer *sc_xfer[UVISOR_N_TRANSFER];
176 struct usb_device *sc_udev;
177 struct mtx sc_mtx;
178
179 uint16_t sc_flag;
180 #define UVISOR_FLAG_PALM4 0x0001
181 #define UVISOR_FLAG_VISOR 0x0002
182 #define UVISOR_FLAG_PALM35 0x0004
183 #define UVISOR_FLAG_SEND_NOTIFY 0x0008
184
185 uint8_t sc_iface_no;
186 uint8_t sc_iface_index;
187 };
188
189 /* prototypes */
190
191 static device_probe_t uvisor_probe;
192 static device_attach_t uvisor_attach;
193 static device_detach_t uvisor_detach;
194 static void uvisor_free_softc(struct uvisor_softc *);
195
196 static usb_callback_t uvisor_write_callback;
197 static usb_callback_t uvisor_read_callback;
198
199 static usb_error_t uvisor_init(struct uvisor_softc *, struct usb_device *,
200 struct usb_config *);
201 static void uvisor_free(struct ucom_softc *);
202 static void uvisor_cfg_open(struct ucom_softc *);
203 static void uvisor_cfg_close(struct ucom_softc *);
204 static void uvisor_start_read(struct ucom_softc *);
205 static void uvisor_stop_read(struct ucom_softc *);
206 static void uvisor_start_write(struct ucom_softc *);
207 static void uvisor_stop_write(struct ucom_softc *);
208
209 static const struct usb_config uvisor_config[UVISOR_N_TRANSFER] = {
210 [UVISOR_BULK_DT_WR] = {
211 .type = UE_BULK,
212 .endpoint = UE_ADDR_ANY,
213 .direction = UE_DIR_OUT,
214 .bufsize = UVISOROBUFSIZE * UVISOROFRAMES,
215 .frames = UVISOROFRAMES,
216 .flags = {.pipe_bof = 1,.force_short_xfer = 1,},
217 .callback = &uvisor_write_callback,
218 },
219
220 [UVISOR_BULK_DT_RD] = {
221 .type = UE_BULK,
222 .endpoint = UE_ADDR_ANY,
223 .direction = UE_DIR_IN,
224 .bufsize = UVISORIBUFSIZE,
225 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
226 .callback = &uvisor_read_callback,
227 },
228 };
229
230 static const struct ucom_callback uvisor_callback = {
231 .ucom_cfg_open = &uvisor_cfg_open,
232 .ucom_cfg_close = &uvisor_cfg_close,
233 .ucom_start_read = &uvisor_start_read,
234 .ucom_stop_read = &uvisor_stop_read,
235 .ucom_start_write = &uvisor_start_write,
236 .ucom_stop_write = &uvisor_stop_write,
237 .ucom_free = &uvisor_free,
238 };
239
240 static device_method_t uvisor_methods[] = {
241 DEVMETHOD(device_probe, uvisor_probe),
242 DEVMETHOD(device_attach, uvisor_attach),
243 DEVMETHOD(device_detach, uvisor_detach),
244 DEVMETHOD_END
245 };
246
247 static driver_t uvisor_driver = {
248 .name = "uvisor",
249 .methods = uvisor_methods,
250 .size = sizeof(struct uvisor_softc),
251 };
252
253 static const STRUCT_USB_HOST_ID uvisor_devs[] = {
254 #define UVISOR_DEV(v,p,i) { USB_VPI(USB_VENDOR_##v, USB_PRODUCT_##v##_##p, i) }
255 UVISOR_DEV(ACEECA, MEZ1000, UVISOR_FLAG_PALM4),
256 UVISOR_DEV(ALPHASMART, DANA_SYNC, UVISOR_FLAG_PALM4),
257 UVISOR_DEV(GARMIN, IQUE_3600, UVISOR_FLAG_PALM4),
258 UVISOR_DEV(FOSSIL, WRISTPDA, UVISOR_FLAG_PALM4),
259 UVISOR_DEV(HANDSPRING, VISOR, UVISOR_FLAG_VISOR),
260 UVISOR_DEV(HANDSPRING, TREO, UVISOR_FLAG_PALM4),
261 UVISOR_DEV(HANDSPRING, TREO600, UVISOR_FLAG_PALM4),
262 UVISOR_DEV(PALM, M500, UVISOR_FLAG_PALM4),
263 UVISOR_DEV(PALM, M505, UVISOR_FLAG_PALM4),
264 UVISOR_DEV(PALM, M515, UVISOR_FLAG_PALM4),
265 UVISOR_DEV(PALM, I705, UVISOR_FLAG_PALM4),
266 UVISOR_DEV(PALM, M125, UVISOR_FLAG_PALM4),
267 UVISOR_DEV(PALM, M130, UVISOR_FLAG_PALM4),
268 UVISOR_DEV(PALM, TUNGSTEN_Z, UVISOR_FLAG_PALM4),
269 UVISOR_DEV(PALM, TUNGSTEN_T, UVISOR_FLAG_PALM4),
270 UVISOR_DEV(PALM, ZIRE, UVISOR_FLAG_PALM4),
271 UVISOR_DEV(PALM, ZIRE31, UVISOR_FLAG_PALM4),
272 UVISOR_DEV(SAMSUNG, I500, UVISOR_FLAG_PALM4),
273 UVISOR_DEV(SONY, CLIE_40, 0),
274 UVISOR_DEV(SONY, CLIE_41, 0),
275 UVISOR_DEV(SONY, CLIE_S360, UVISOR_FLAG_PALM4),
276 UVISOR_DEV(SONY, CLIE_NX60, UVISOR_FLAG_PALM4),
277 UVISOR_DEV(SONY, CLIE_35, UVISOR_FLAG_PALM35),
278 /* UVISOR_DEV(SONY, CLIE_25, UVISOR_FLAG_PALM4 ), */
279 UVISOR_DEV(SONY, CLIE_TJ37, UVISOR_FLAG_PALM4),
280 /* UVISOR_DEV(SONY, CLIE_TH55, UVISOR_FLAG_PALM4 ), See PR 80935 */
281 UVISOR_DEV(TAPWAVE, ZODIAC, UVISOR_FLAG_PALM4),
282 #undef UVISOR_DEV
283 };
284
285 DRIVER_MODULE(uvisor, uhub, uvisor_driver, NULL, NULL);
286 MODULE_DEPEND(uvisor, ucom, 1, 1, 1);
287 MODULE_DEPEND(uvisor, usb, 1, 1, 1);
288 MODULE_VERSION(uvisor, 1);
289 USB_PNP_HOST_INFO(uvisor_devs);
290
291 static int
uvisor_probe(device_t dev)292 uvisor_probe(device_t dev)
293 {
294 struct usb_attach_arg *uaa = device_get_ivars(dev);
295
296 if (uaa->usb_mode != USB_MODE_HOST) {
297 return (ENXIO);
298 }
299 if (uaa->info.bConfigIndex != UVISOR_CONFIG_INDEX) {
300 return (ENXIO);
301 }
302 if (uaa->info.bIfaceIndex != UVISOR_IFACE_INDEX) {
303 return (ENXIO);
304 }
305 return (usbd_lookup_id_by_uaa(uvisor_devs, sizeof(uvisor_devs), uaa));
306 }
307
308 static int
uvisor_attach(device_t dev)309 uvisor_attach(device_t dev)
310 {
311 struct usb_attach_arg *uaa = device_get_ivars(dev);
312 struct uvisor_softc *sc = device_get_softc(dev);
313 struct usb_config uvisor_config_copy[UVISOR_N_TRANSFER];
314 int error;
315
316 DPRINTF("sc=%p\n", sc);
317 memcpy(uvisor_config_copy, uvisor_config,
318 sizeof(uvisor_config_copy));
319
320 device_set_usb_desc(dev);
321
322 mtx_init(&sc->sc_mtx, "uvisor", NULL, MTX_DEF);
323 ucom_ref(&sc->sc_super_ucom);
324
325 sc->sc_udev = uaa->device;
326
327 /* configure the device */
328
329 sc->sc_flag = USB_GET_DRIVER_INFO(uaa);
330 sc->sc_iface_no = uaa->info.bIfaceNum;
331 sc->sc_iface_index = UVISOR_IFACE_INDEX;
332
333 error = uvisor_init(sc, uaa->device, uvisor_config_copy);
334
335 if (error) {
336 DPRINTF("init failed, error=%s\n",
337 usbd_errstr(error));
338 goto detach;
339 }
340 error = usbd_transfer_setup(uaa->device, &sc->sc_iface_index,
341 sc->sc_xfer, uvisor_config_copy, UVISOR_N_TRANSFER,
342 sc, &sc->sc_mtx);
343 if (error) {
344 DPRINTF("could not allocate all pipes\n");
345 goto detach;
346 }
347
348 error = ucom_attach(&sc->sc_super_ucom, &sc->sc_ucom, 1, sc,
349 &uvisor_callback, &sc->sc_mtx);
350 if (error) {
351 DPRINTF("ucom_attach failed\n");
352 goto detach;
353 }
354 ucom_set_pnpinfo_usb(&sc->sc_super_ucom, dev);
355
356 return (0);
357
358 detach:
359 uvisor_detach(dev);
360 return (ENXIO);
361 }
362
363 static int
uvisor_detach(device_t dev)364 uvisor_detach(device_t dev)
365 {
366 struct uvisor_softc *sc = device_get_softc(dev);
367
368 DPRINTF("sc=%p\n", sc);
369
370 ucom_detach(&sc->sc_super_ucom, &sc->sc_ucom);
371 usbd_transfer_unsetup(sc->sc_xfer, UVISOR_N_TRANSFER);
372
373 device_claim_softc(dev);
374
375 uvisor_free_softc(sc);
376
377 return (0);
378 }
379
380 UCOM_UNLOAD_DRAIN(uvisor);
381
382 static void
uvisor_free_softc(struct uvisor_softc * sc)383 uvisor_free_softc(struct uvisor_softc *sc)
384 {
385 if (ucom_unref(&sc->sc_super_ucom)) {
386 mtx_destroy(&sc->sc_mtx);
387 device_free_softc(sc);
388 }
389 }
390
391 static void
uvisor_free(struct ucom_softc * ucom)392 uvisor_free(struct ucom_softc *ucom)
393 {
394 uvisor_free_softc(ucom->sc_parent);
395 }
396
397 static usb_error_t
uvisor_init(struct uvisor_softc * sc,struct usb_device * udev,struct usb_config * config)398 uvisor_init(struct uvisor_softc *sc, struct usb_device *udev, struct usb_config *config)
399 {
400 usb_error_t err = 0;
401 struct usb_device_request req;
402 struct uvisor_connection_info coninfo;
403 struct uvisor_palm_connection_info pconinfo;
404 uint16_t actlen;
405 uint8_t buffer[256];
406
407 if (sc->sc_flag & UVISOR_FLAG_VISOR) {
408 DPRINTF("getting connection info\n");
409 req.bmRequestType = UT_READ_VENDOR_ENDPOINT;
410 req.bRequest = UVISOR_GET_CONNECTION_INFORMATION;
411 USETW(req.wValue, 0);
412 USETW(req.wIndex, 0);
413 USETW(req.wLength, UVISOR_CONNECTION_INFO_SIZE);
414 err = usbd_do_request_flags(udev, NULL,
415 &req, &coninfo, USB_SHORT_XFER_OK,
416 &actlen, USB_DEFAULT_TIMEOUT);
417
418 if (err) {
419 goto done;
420 }
421 }
422 #ifdef USB_DEBUG
423 if (sc->sc_flag & UVISOR_FLAG_VISOR) {
424 uint16_t i, np;
425 const char *desc;
426
427 np = UGETW(coninfo.num_ports);
428 if (np > UVISOR_MAX_CONN) {
429 np = UVISOR_MAX_CONN;
430 }
431 DPRINTF("Number of ports: %d\n", np);
432
433 for (i = 0; i < np; ++i) {
434 switch (coninfo.connections[i].port_function_id) {
435 case UVISOR_FUNCTION_GENERIC:
436 desc = "Generic";
437 break;
438 case UVISOR_FUNCTION_DEBUGGER:
439 desc = "Debugger";
440 break;
441 case UVISOR_FUNCTION_HOTSYNC:
442 desc = "HotSync";
443 break;
444 case UVISOR_FUNCTION_REMOTE_FILE_SYS:
445 desc = "Remote File System";
446 break;
447 default:
448 desc = "unknown";
449 break;
450 }
451 DPRINTF("Port %d is for %s\n",
452 coninfo.connections[i].port, desc);
453 }
454 }
455 #endif
456
457 if (sc->sc_flag & UVISOR_FLAG_PALM4) {
458 uint8_t port;
459
460 /* Palm OS 4.0 Hack */
461 req.bmRequestType = UT_READ_VENDOR_ENDPOINT;
462 req.bRequest = UVISOR_GET_PALM_INFORMATION;
463 USETW(req.wValue, 0);
464 USETW(req.wIndex, 0);
465 USETW(req.wLength, UVISOR_GET_PALM_INFORMATION_LEN);
466
467 err = usbd_do_request_flags
468 (udev, NULL, &req, &pconinfo, USB_SHORT_XFER_OK,
469 &actlen, USB_DEFAULT_TIMEOUT);
470
471 if (err) {
472 goto done;
473 }
474 if (actlen < 12) {
475 DPRINTF("too little data\n");
476 err = USB_ERR_INVAL;
477 goto done;
478 }
479 if (pconinfo.endpoint_numbers_different) {
480 port = pconinfo.connections[0].end_point_info;
481 config[0].endpoint = (port & 0xF); /* output */
482 config[1].endpoint = (port >> 4); /* input */
483 } else {
484 port = pconinfo.connections[0].port;
485 config[0].endpoint = (port & 0xF); /* output */
486 config[1].endpoint = (port & 0xF); /* input */
487 }
488 #if 0
489 req.bmRequestType = UT_READ_VENDOR_ENDPOINT;
490 req.bRequest = UVISOR_GET_PALM_INFORMATION;
491 USETW(req.wValue, 0);
492 USETW(req.wIndex, 0);
493 USETW(req.wLength, UVISOR_GET_PALM_INFORMATION_LEN);
494 err = usbd_do_request(udev, &req, buffer);
495 if (err) {
496 goto done;
497 }
498 #endif
499 }
500 if (sc->sc_flag & UVISOR_FLAG_PALM35) {
501 /* get the config number */
502 DPRINTF("getting config info\n");
503 req.bmRequestType = UT_READ;
504 req.bRequest = UR_GET_CONFIG;
505 USETW(req.wValue, 0);
506 USETW(req.wIndex, 0);
507 USETW(req.wLength, 1);
508
509 err = usbd_do_request(udev, NULL, &req, buffer);
510 if (err) {
511 goto done;
512 }
513 /* get the interface number */
514 DPRINTF("get the interface number\n");
515 req.bmRequestType = UT_READ_DEVICE;
516 req.bRequest = UR_GET_INTERFACE;
517 USETW(req.wValue, 0);
518 USETW(req.wIndex, 0);
519 USETW(req.wLength, 1);
520 err = usbd_do_request(udev, NULL, &req, buffer);
521 if (err) {
522 goto done;
523 }
524 }
525 #if 0
526 uWord wAvail;
527
528 DPRINTF("getting available bytes\n");
529 req.bmRequestType = UT_READ_VENDOR_ENDPOINT;
530 req.bRequest = UVISOR_REQUEST_BYTES_AVAILABLE;
531 USETW(req.wValue, 0);
532 USETW(req.wIndex, 5);
533 USETW(req.wLength, sizeof(wAvail));
534 err = usbd_do_request(udev, NULL, &req, &wAvail);
535 if (err) {
536 goto done;
537 }
538 DPRINTF("avail=%d\n", UGETW(wAvail));
539 #endif
540
541 DPRINTF("done\n");
542 done:
543 return (err);
544 }
545
546 static void
uvisor_cfg_open(struct ucom_softc * ucom)547 uvisor_cfg_open(struct ucom_softc *ucom)
548 {
549 return;
550 }
551
552 static void
uvisor_cfg_close(struct ucom_softc * ucom)553 uvisor_cfg_close(struct ucom_softc *ucom)
554 {
555 struct uvisor_softc *sc = ucom->sc_parent;
556 uint8_t buffer[UVISOR_CONNECTION_INFO_SIZE];
557 struct usb_device_request req;
558 usb_error_t err;
559
560 req.bmRequestType = UT_READ_VENDOR_ENDPOINT; /* XXX read? */
561 req.bRequest = UVISOR_CLOSE_NOTIFICATION;
562 USETW(req.wValue, 0);
563 USETW(req.wIndex, 0);
564 USETW(req.wLength, UVISOR_CONNECTION_INFO_SIZE);
565
566 err = ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
567 &req, buffer, 0, 1000);
568 if (err) {
569 DPRINTFN(0, "close notification failed, error=%s\n",
570 usbd_errstr(err));
571 }
572 }
573
574 static void
uvisor_start_read(struct ucom_softc * ucom)575 uvisor_start_read(struct ucom_softc *ucom)
576 {
577 struct uvisor_softc *sc = ucom->sc_parent;
578
579 usbd_transfer_start(sc->sc_xfer[UVISOR_BULK_DT_RD]);
580 }
581
582 static void
uvisor_stop_read(struct ucom_softc * ucom)583 uvisor_stop_read(struct ucom_softc *ucom)
584 {
585 struct uvisor_softc *sc = ucom->sc_parent;
586
587 usbd_transfer_stop(sc->sc_xfer[UVISOR_BULK_DT_RD]);
588 }
589
590 static void
uvisor_start_write(struct ucom_softc * ucom)591 uvisor_start_write(struct ucom_softc *ucom)
592 {
593 struct uvisor_softc *sc = ucom->sc_parent;
594
595 usbd_transfer_start(sc->sc_xfer[UVISOR_BULK_DT_WR]);
596 }
597
598 static void
uvisor_stop_write(struct ucom_softc * ucom)599 uvisor_stop_write(struct ucom_softc *ucom)
600 {
601 struct uvisor_softc *sc = ucom->sc_parent;
602
603 usbd_transfer_stop(sc->sc_xfer[UVISOR_BULK_DT_WR]);
604 }
605
606 static void
uvisor_write_callback(struct usb_xfer * xfer,usb_error_t error)607 uvisor_write_callback(struct usb_xfer *xfer, usb_error_t error)
608 {
609 struct uvisor_softc *sc = usbd_xfer_softc(xfer);
610 struct usb_page_cache *pc;
611 uint32_t actlen;
612 uint8_t x;
613
614 switch (USB_GET_STATE(xfer)) {
615 case USB_ST_SETUP:
616 case USB_ST_TRANSFERRED:
617 tr_setup:
618 for (x = 0; x != UVISOROFRAMES; x++) {
619 usbd_xfer_set_frame_offset(xfer,
620 x * UVISOROBUFSIZE, x);
621
622 pc = usbd_xfer_get_frame(xfer, x);
623 if (ucom_get_data(&sc->sc_ucom, pc, 0,
624 UVISOROBUFSIZE, &actlen)) {
625 usbd_xfer_set_frame_len(xfer, x, actlen);
626 } else {
627 break;
628 }
629 }
630 /* check for data */
631 if (x != 0) {
632 usbd_xfer_set_frames(xfer, x);
633 usbd_transfer_submit(xfer);
634 }
635 break;
636
637 default: /* Error */
638 if (error != USB_ERR_CANCELLED) {
639 /* try to clear stall first */
640 usbd_xfer_set_stall(xfer);
641 goto tr_setup;
642 }
643 break;
644 }
645 }
646
647 static void
uvisor_read_callback(struct usb_xfer * xfer,usb_error_t error)648 uvisor_read_callback(struct usb_xfer *xfer, usb_error_t error)
649 {
650 struct uvisor_softc *sc = usbd_xfer_softc(xfer);
651 struct usb_page_cache *pc;
652 int actlen;
653
654 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
655
656 switch (USB_GET_STATE(xfer)) {
657 case USB_ST_TRANSFERRED:
658 pc = usbd_xfer_get_frame(xfer, 0);
659 ucom_put_data(&sc->sc_ucom, pc, 0, actlen);
660
661 case USB_ST_SETUP:
662 tr_setup:
663 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
664 usbd_transfer_submit(xfer);
665 return;
666
667 default: /* Error */
668 if (error != USB_ERR_CANCELLED) {
669 /* try to clear stall first */
670 usbd_xfer_set_stall(xfer);
671 goto tr_setup;
672 }
673 return;
674 }
675 }
676