1 /* $NetBSD: uvisor.c,v 1.9 2001/01/23 14:04:14 augustss Exp $ */
2 /* $FreeBSD$ */
3
4 /* Also already merged from NetBSD:
5 * $NetBSD: uvisor.c,v 1.12 2001/11/13 06:24:57 lukem Exp $
6 * $NetBSD: uvisor.c,v 1.13 2002/02/11 15:11:49 augustss Exp $
7 * $NetBSD: uvisor.c,v 1.14 2002/02/27 23:00:03 augustss Exp $
8 * $NetBSD: uvisor.c,v 1.15 2002/06/16 15:01:31 augustss Exp $
9 * $NetBSD: uvisor.c,v 1.16 2002/07/11 21:14:36 augustss Exp $
10 * $NetBSD: uvisor.c,v 1.17 2002/08/13 11:38:15 augustss Exp $
11 * $NetBSD: uvisor.c,v 1.18 2003/02/05 00:50:14 augustss Exp $
12 * $NetBSD: uvisor.c,v 1.19 2003/02/07 18:12:37 augustss Exp $
13 * $NetBSD: uvisor.c,v 1.20 2003/04/11 01:30:10 simonb Exp $
14 */
15
16 /*-
17 * SPDX-License-Identifier: BSD-2-Clause-NetBSD
18 *
19 * Copyright (c) 2000 The NetBSD Foundation, Inc.
20 * All rights reserved.
21 *
22 * This code is derived from software contributed to The NetBSD Foundation
23 * by Lennart Augustsson ([email protected]) at
24 * Carlstedt Research & Technology.
25 *
26 * Redistribution and use in source and binary forms, with or without
27 * modification, are permitted provided that the following conditions
28 * are met:
29 * 1. Redistributions of source code must retain the above copyright
30 * notice, this list of conditions and the following disclaimer.
31 * 2. Redistributions in binary form must reproduce the above copyright
32 * notice, this list of conditions and the following disclaimer in the
33 * documentation and/or other materials provided with the distribution.
34 *
35 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
36 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
37 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
38 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
39 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
40 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
41 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
42 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
43 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
44 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
45 * POSSIBILITY OF SUCH DAMAGE.
46 */
47
48 /*
49 * Handspring Visor (Palmpilot compatible PDA) driver
50 */
51
52 #include <sys/stdint.h>
53 #include <sys/stddef.h>
54 #include <sys/param.h>
55 #include <sys/queue.h>
56 #include <sys/types.h>
57 #include <sys/systm.h>
58 #include <sys/kernel.h>
59 #include <sys/bus.h>
60 #include <sys/module.h>
61 #include <sys/lock.h>
62 #include <sys/mutex.h>
63 #include <sys/condvar.h>
64 #include <sys/sysctl.h>
65 #include <sys/sx.h>
66 #include <sys/unistd.h>
67 #include <sys/callout.h>
68 #include <sys/malloc.h>
69 #include <sys/priv.h>
70
71 #include <dev/usb/usb.h>
72 #include <dev/usb/usbdi.h>
73 #include <dev/usb/usbdi_util.h>
74 #include "usbdevs.h"
75
76 #define USB_DEBUG_VAR uvisor_debug
77 #include <dev/usb/usb_debug.h>
78 #include <dev/usb/usb_process.h>
79
80 #include <dev/usb/serial/usb_serial.h>
81
82 #ifdef USB_DEBUG
83 static int uvisor_debug = 0;
84
85 static SYSCTL_NODE(_hw_usb, OID_AUTO, uvisor, CTLFLAG_RW, 0, "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
211 [UVISOR_BULK_DT_WR] = {
212 .type = UE_BULK,
213 .endpoint = UE_ADDR_ANY,
214 .direction = UE_DIR_OUT,
215 .bufsize = UVISOROBUFSIZE * UVISOROFRAMES,
216 .frames = UVISOROFRAMES,
217 .flags = {.pipe_bof = 1,.force_short_xfer = 1,},
218 .callback = &uvisor_write_callback,
219 },
220
221 [UVISOR_BULK_DT_RD] = {
222 .type = UE_BULK,
223 .endpoint = UE_ADDR_ANY,
224 .direction = UE_DIR_IN,
225 .bufsize = UVISORIBUFSIZE,
226 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
227 .callback = &uvisor_read_callback,
228 },
229 };
230
231 static const struct ucom_callback uvisor_callback = {
232 .ucom_cfg_open = &uvisor_cfg_open,
233 .ucom_cfg_close = &uvisor_cfg_close,
234 .ucom_start_read = &uvisor_start_read,
235 .ucom_stop_read = &uvisor_stop_read,
236 .ucom_start_write = &uvisor_start_write,
237 .ucom_stop_write = &uvisor_stop_write,
238 .ucom_free = &uvisor_free,
239 };
240
241 static device_method_t uvisor_methods[] = {
242 DEVMETHOD(device_probe, uvisor_probe),
243 DEVMETHOD(device_attach, uvisor_attach),
244 DEVMETHOD(device_detach, uvisor_detach),
245 DEVMETHOD_END
246 };
247
248 static devclass_t uvisor_devclass;
249
250 static driver_t uvisor_driver = {
251 .name = "uvisor",
252 .methods = uvisor_methods,
253 .size = sizeof(struct uvisor_softc),
254 };
255
256 static const STRUCT_USB_HOST_ID uvisor_devs[] = {
257 #define UVISOR_DEV(v,p,i) { USB_VPI(USB_VENDOR_##v, USB_PRODUCT_##v##_##p, i) }
258 UVISOR_DEV(ACEECA, MEZ1000, UVISOR_FLAG_PALM4),
259 UVISOR_DEV(ALPHASMART, DANA_SYNC, UVISOR_FLAG_PALM4),
260 UVISOR_DEV(GARMIN, IQUE_3600, UVISOR_FLAG_PALM4),
261 UVISOR_DEV(FOSSIL, WRISTPDA, UVISOR_FLAG_PALM4),
262 UVISOR_DEV(HANDSPRING, VISOR, UVISOR_FLAG_VISOR),
263 UVISOR_DEV(HANDSPRING, TREO, UVISOR_FLAG_PALM4),
264 UVISOR_DEV(HANDSPRING, TREO600, UVISOR_FLAG_PALM4),
265 UVISOR_DEV(PALM, M500, UVISOR_FLAG_PALM4),
266 UVISOR_DEV(PALM, M505, UVISOR_FLAG_PALM4),
267 UVISOR_DEV(PALM, M515, UVISOR_FLAG_PALM4),
268 UVISOR_DEV(PALM, I705, UVISOR_FLAG_PALM4),
269 UVISOR_DEV(PALM, M125, UVISOR_FLAG_PALM4),
270 UVISOR_DEV(PALM, M130, UVISOR_FLAG_PALM4),
271 UVISOR_DEV(PALM, TUNGSTEN_Z, UVISOR_FLAG_PALM4),
272 UVISOR_DEV(PALM, TUNGSTEN_T, UVISOR_FLAG_PALM4),
273 UVISOR_DEV(PALM, ZIRE, UVISOR_FLAG_PALM4),
274 UVISOR_DEV(PALM, ZIRE31, UVISOR_FLAG_PALM4),
275 UVISOR_DEV(SAMSUNG, I500, UVISOR_FLAG_PALM4),
276 UVISOR_DEV(SONY, CLIE_40, 0),
277 UVISOR_DEV(SONY, CLIE_41, 0),
278 UVISOR_DEV(SONY, CLIE_S360, UVISOR_FLAG_PALM4),
279 UVISOR_DEV(SONY, CLIE_NX60, UVISOR_FLAG_PALM4),
280 UVISOR_DEV(SONY, CLIE_35, UVISOR_FLAG_PALM35),
281 /* UVISOR_DEV(SONY, CLIE_25, UVISOR_FLAG_PALM4 ), */
282 UVISOR_DEV(SONY, CLIE_TJ37, UVISOR_FLAG_PALM4),
283 /* UVISOR_DEV(SONY, CLIE_TH55, UVISOR_FLAG_PALM4 ), See PR 80935 */
284 UVISOR_DEV(TAPWAVE, ZODIAC, UVISOR_FLAG_PALM4),
285 #undef UVISOR_DEV
286 };
287
288 DRIVER_MODULE(uvisor, uhub, uvisor_driver, uvisor_devclass, NULL, 0);
289 MODULE_DEPEND(uvisor, ucom, 1, 1, 1);
290 MODULE_DEPEND(uvisor, usb, 1, 1, 1);
291 MODULE_VERSION(uvisor, 1);
292 USB_PNP_HOST_INFO(uvisor_devs);
293
294 static int
uvisor_probe(device_t dev)295 uvisor_probe(device_t dev)
296 {
297 struct usb_attach_arg *uaa = device_get_ivars(dev);
298
299 if (uaa->usb_mode != USB_MODE_HOST) {
300 return (ENXIO);
301 }
302 if (uaa->info.bConfigIndex != UVISOR_CONFIG_INDEX) {
303 return (ENXIO);
304 }
305 if (uaa->info.bIfaceIndex != UVISOR_IFACE_INDEX) {
306 return (ENXIO);
307 }
308 return (usbd_lookup_id_by_uaa(uvisor_devs, sizeof(uvisor_devs), uaa));
309 }
310
311 static int
uvisor_attach(device_t dev)312 uvisor_attach(device_t dev)
313 {
314 struct usb_attach_arg *uaa = device_get_ivars(dev);
315 struct uvisor_softc *sc = device_get_softc(dev);
316 struct usb_config uvisor_config_copy[UVISOR_N_TRANSFER];
317 int error;
318
319 DPRINTF("sc=%p\n", sc);
320 memcpy(uvisor_config_copy, uvisor_config,
321 sizeof(uvisor_config_copy));
322
323 device_set_usb_desc(dev);
324
325 mtx_init(&sc->sc_mtx, "uvisor", NULL, MTX_DEF);
326 ucom_ref(&sc->sc_super_ucom);
327
328 sc->sc_udev = uaa->device;
329
330 /* configure the device */
331
332 sc->sc_flag = USB_GET_DRIVER_INFO(uaa);
333 sc->sc_iface_no = uaa->info.bIfaceNum;
334 sc->sc_iface_index = UVISOR_IFACE_INDEX;
335
336 error = uvisor_init(sc, uaa->device, uvisor_config_copy);
337
338 if (error) {
339 DPRINTF("init failed, error=%s\n",
340 usbd_errstr(error));
341 goto detach;
342 }
343 error = usbd_transfer_setup(uaa->device, &sc->sc_iface_index,
344 sc->sc_xfer, uvisor_config_copy, UVISOR_N_TRANSFER,
345 sc, &sc->sc_mtx);
346 if (error) {
347 DPRINTF("could not allocate all pipes\n");
348 goto detach;
349 }
350
351 error = ucom_attach(&sc->sc_super_ucom, &sc->sc_ucom, 1, sc,
352 &uvisor_callback, &sc->sc_mtx);
353 if (error) {
354 DPRINTF("ucom_attach failed\n");
355 goto detach;
356 }
357 ucom_set_pnpinfo_usb(&sc->sc_super_ucom, dev);
358
359 return (0);
360
361 detach:
362 uvisor_detach(dev);
363 return (ENXIO);
364 }
365
366 static int
uvisor_detach(device_t dev)367 uvisor_detach(device_t dev)
368 {
369 struct uvisor_softc *sc = device_get_softc(dev);
370
371 DPRINTF("sc=%p\n", sc);
372
373 ucom_detach(&sc->sc_super_ucom, &sc->sc_ucom);
374 usbd_transfer_unsetup(sc->sc_xfer, UVISOR_N_TRANSFER);
375
376 device_claim_softc(dev);
377
378 uvisor_free_softc(sc);
379
380 return (0);
381 }
382
383 UCOM_UNLOAD_DRAIN(uvisor);
384
385 static void
uvisor_free_softc(struct uvisor_softc * sc)386 uvisor_free_softc(struct uvisor_softc *sc)
387 {
388 if (ucom_unref(&sc->sc_super_ucom)) {
389 mtx_destroy(&sc->sc_mtx);
390 device_free_softc(sc);
391 }
392 }
393
394 static void
uvisor_free(struct ucom_softc * ucom)395 uvisor_free(struct ucom_softc *ucom)
396 {
397 uvisor_free_softc(ucom->sc_parent);
398 }
399
400 static usb_error_t
uvisor_init(struct uvisor_softc * sc,struct usb_device * udev,struct usb_config * config)401 uvisor_init(struct uvisor_softc *sc, struct usb_device *udev, struct usb_config *config)
402 {
403 usb_error_t err = 0;
404 struct usb_device_request req;
405 struct uvisor_connection_info coninfo;
406 struct uvisor_palm_connection_info pconinfo;
407 uint16_t actlen;
408 uint8_t buffer[256];
409
410 if (sc->sc_flag & UVISOR_FLAG_VISOR) {
411 DPRINTF("getting connection info\n");
412 req.bmRequestType = UT_READ_VENDOR_ENDPOINT;
413 req.bRequest = UVISOR_GET_CONNECTION_INFORMATION;
414 USETW(req.wValue, 0);
415 USETW(req.wIndex, 0);
416 USETW(req.wLength, UVISOR_CONNECTION_INFO_SIZE);
417 err = usbd_do_request_flags(udev, NULL,
418 &req, &coninfo, USB_SHORT_XFER_OK,
419 &actlen, USB_DEFAULT_TIMEOUT);
420
421 if (err) {
422 goto done;
423 }
424 }
425 #ifdef USB_DEBUG
426 if (sc->sc_flag & UVISOR_FLAG_VISOR) {
427 uint16_t i, np;
428 const char *desc;
429
430 np = UGETW(coninfo.num_ports);
431 if (np > UVISOR_MAX_CONN) {
432 np = UVISOR_MAX_CONN;
433 }
434 DPRINTF("Number of ports: %d\n", np);
435
436 for (i = 0; i < np; ++i) {
437 switch (coninfo.connections[i].port_function_id) {
438 case UVISOR_FUNCTION_GENERIC:
439 desc = "Generic";
440 break;
441 case UVISOR_FUNCTION_DEBUGGER:
442 desc = "Debugger";
443 break;
444 case UVISOR_FUNCTION_HOTSYNC:
445 desc = "HotSync";
446 break;
447 case UVISOR_FUNCTION_REMOTE_FILE_SYS:
448 desc = "Remote File System";
449 break;
450 default:
451 desc = "unknown";
452 break;
453 }
454 DPRINTF("Port %d is for %s\n",
455 coninfo.connections[i].port, desc);
456 }
457 }
458 #endif
459
460 if (sc->sc_flag & UVISOR_FLAG_PALM4) {
461 uint8_t port;
462
463 /* Palm OS 4.0 Hack */
464 req.bmRequestType = UT_READ_VENDOR_ENDPOINT;
465 req.bRequest = UVISOR_GET_PALM_INFORMATION;
466 USETW(req.wValue, 0);
467 USETW(req.wIndex, 0);
468 USETW(req.wLength, UVISOR_GET_PALM_INFORMATION_LEN);
469
470 err = usbd_do_request_flags
471 (udev, NULL, &req, &pconinfo, USB_SHORT_XFER_OK,
472 &actlen, USB_DEFAULT_TIMEOUT);
473
474 if (err) {
475 goto done;
476 }
477 if (actlen < 12) {
478 DPRINTF("too little data\n");
479 err = USB_ERR_INVAL;
480 goto done;
481 }
482 if (pconinfo.endpoint_numbers_different) {
483 port = pconinfo.connections[0].end_point_info;
484 config[0].endpoint = (port & 0xF); /* output */
485 config[1].endpoint = (port >> 4); /* input */
486 } else {
487 port = pconinfo.connections[0].port;
488 config[0].endpoint = (port & 0xF); /* output */
489 config[1].endpoint = (port & 0xF); /* input */
490 }
491 #if 0
492 req.bmRequestType = UT_READ_VENDOR_ENDPOINT;
493 req.bRequest = UVISOR_GET_PALM_INFORMATION;
494 USETW(req.wValue, 0);
495 USETW(req.wIndex, 0);
496 USETW(req.wLength, UVISOR_GET_PALM_INFORMATION_LEN);
497 err = usbd_do_request(udev, &req, buffer);
498 if (err) {
499 goto done;
500 }
501 #endif
502 }
503 if (sc->sc_flag & UVISOR_FLAG_PALM35) {
504 /* get the config number */
505 DPRINTF("getting config info\n");
506 req.bmRequestType = UT_READ;
507 req.bRequest = UR_GET_CONFIG;
508 USETW(req.wValue, 0);
509 USETW(req.wIndex, 0);
510 USETW(req.wLength, 1);
511
512 err = usbd_do_request(udev, NULL, &req, buffer);
513 if (err) {
514 goto done;
515 }
516 /* get the interface number */
517 DPRINTF("get the interface number\n");
518 req.bmRequestType = UT_READ_DEVICE;
519 req.bRequest = UR_GET_INTERFACE;
520 USETW(req.wValue, 0);
521 USETW(req.wIndex, 0);
522 USETW(req.wLength, 1);
523 err = usbd_do_request(udev, NULL, &req, buffer);
524 if (err) {
525 goto done;
526 }
527 }
528 #if 0
529 uWord wAvail;
530
531 DPRINTF("getting available bytes\n");
532 req.bmRequestType = UT_READ_VENDOR_ENDPOINT;
533 req.bRequest = UVISOR_REQUEST_BYTES_AVAILABLE;
534 USETW(req.wValue, 0);
535 USETW(req.wIndex, 5);
536 USETW(req.wLength, sizeof(wAvail));
537 err = usbd_do_request(udev, NULL, &req, &wAvail);
538 if (err) {
539 goto done;
540 }
541 DPRINTF("avail=%d\n", UGETW(wAvail));
542 #endif
543
544 DPRINTF("done\n");
545 done:
546 return (err);
547 }
548
549 static void
uvisor_cfg_open(struct ucom_softc * ucom)550 uvisor_cfg_open(struct ucom_softc *ucom)
551 {
552 return;
553 }
554
555 static void
uvisor_cfg_close(struct ucom_softc * ucom)556 uvisor_cfg_close(struct ucom_softc *ucom)
557 {
558 struct uvisor_softc *sc = ucom->sc_parent;
559 uint8_t buffer[UVISOR_CONNECTION_INFO_SIZE];
560 struct usb_device_request req;
561 usb_error_t err;
562
563 req.bmRequestType = UT_READ_VENDOR_ENDPOINT; /* XXX read? */
564 req.bRequest = UVISOR_CLOSE_NOTIFICATION;
565 USETW(req.wValue, 0);
566 USETW(req.wIndex, 0);
567 USETW(req.wLength, UVISOR_CONNECTION_INFO_SIZE);
568
569 err = ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
570 &req, buffer, 0, 1000);
571 if (err) {
572 DPRINTFN(0, "close notification failed, error=%s\n",
573 usbd_errstr(err));
574 }
575 }
576
577 static void
uvisor_start_read(struct ucom_softc * ucom)578 uvisor_start_read(struct ucom_softc *ucom)
579 {
580 struct uvisor_softc *sc = ucom->sc_parent;
581
582 usbd_transfer_start(sc->sc_xfer[UVISOR_BULK_DT_RD]);
583 }
584
585 static void
uvisor_stop_read(struct ucom_softc * ucom)586 uvisor_stop_read(struct ucom_softc *ucom)
587 {
588 struct uvisor_softc *sc = ucom->sc_parent;
589
590 usbd_transfer_stop(sc->sc_xfer[UVISOR_BULK_DT_RD]);
591 }
592
593 static void
uvisor_start_write(struct ucom_softc * ucom)594 uvisor_start_write(struct ucom_softc *ucom)
595 {
596 struct uvisor_softc *sc = ucom->sc_parent;
597
598 usbd_transfer_start(sc->sc_xfer[UVISOR_BULK_DT_WR]);
599 }
600
601 static void
uvisor_stop_write(struct ucom_softc * ucom)602 uvisor_stop_write(struct ucom_softc *ucom)
603 {
604 struct uvisor_softc *sc = ucom->sc_parent;
605
606 usbd_transfer_stop(sc->sc_xfer[UVISOR_BULK_DT_WR]);
607 }
608
609 static void
uvisor_write_callback(struct usb_xfer * xfer,usb_error_t error)610 uvisor_write_callback(struct usb_xfer *xfer, usb_error_t error)
611 {
612 struct uvisor_softc *sc = usbd_xfer_softc(xfer);
613 struct usb_page_cache *pc;
614 uint32_t actlen;
615 uint8_t x;
616
617 switch (USB_GET_STATE(xfer)) {
618 case USB_ST_SETUP:
619 case USB_ST_TRANSFERRED:
620 tr_setup:
621 for (x = 0; x != UVISOROFRAMES; x++) {
622
623 usbd_xfer_set_frame_offset(xfer,
624 x * UVISOROBUFSIZE, x);
625
626 pc = usbd_xfer_get_frame(xfer, x);
627 if (ucom_get_data(&sc->sc_ucom, pc, 0,
628 UVISOROBUFSIZE, &actlen)) {
629 usbd_xfer_set_frame_len(xfer, x, actlen);
630 } else {
631 break;
632 }
633 }
634 /* check for data */
635 if (x != 0) {
636 usbd_xfer_set_frames(xfer, x);
637 usbd_transfer_submit(xfer);
638 }
639 break;
640
641 default: /* Error */
642 if (error != USB_ERR_CANCELLED) {
643 /* try to clear stall first */
644 usbd_xfer_set_stall(xfer);
645 goto tr_setup;
646 }
647 break;
648 }
649 }
650
651 static void
uvisor_read_callback(struct usb_xfer * xfer,usb_error_t error)652 uvisor_read_callback(struct usb_xfer *xfer, usb_error_t error)
653 {
654 struct uvisor_softc *sc = usbd_xfer_softc(xfer);
655 struct usb_page_cache *pc;
656 int actlen;
657
658 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
659
660 switch (USB_GET_STATE(xfer)) {
661 case USB_ST_TRANSFERRED:
662 pc = usbd_xfer_get_frame(xfer, 0);
663 ucom_put_data(&sc->sc_ucom, pc, 0, actlen);
664
665 case USB_ST_SETUP:
666 tr_setup:
667 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
668 usbd_transfer_submit(xfer);
669 return;
670
671 default: /* Error */
672 if (error != USB_ERR_CANCELLED) {
673 /* try to clear stall first */
674 usbd_xfer_set_stall(xfer);
675 goto tr_setup;
676 }
677 return;
678 }
679 }
680