1 /* $NetBSD: uplcom.c,v 1.21 2001/11/13 06:24:56 lukem Exp $ */
2
3 #include <sys/cdefs.h>
4 /*-
5 * SPDX-License-Identifier: BSD-2-Clause
6 *
7 * Copyright (c) 2001-2003, 2005 Shunsuke Akiyama <akiyama@jp.FreeBSD.org>.
8 * All rights reserved.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32 /*-
33 * Copyright (c) 2001 The NetBSD Foundation, Inc.
34 * All rights reserved.
35 *
36 * This code is derived from software contributed to The NetBSD Foundation
37 * by Ichiro FUKUHARA (ichiro@ichiro.org).
38 *
39 * Redistribution and use in source and binary forms, with or without
40 * modification, are permitted provided that the following conditions
41 * are met:
42 * 1. Redistributions of source code must retain the above copyright
43 * notice, this list of conditions and the following disclaimer.
44 * 2. Redistributions in binary form must reproduce the above copyright
45 * notice, this list of conditions and the following disclaimer in the
46 * documentation and/or other materials provided with the distribution.
47 *
48 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
49 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
50 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
51 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
52 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
53 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
54 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
55 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
56 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
57 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
58 * POSSIBILITY OF SUCH DAMAGE.
59 */
60
61 /*
62 * This driver supports several USB-to-RS232 serial adapters driven by
63 * Prolific PL-2303, PL-2303X and probably PL-2303HX USB-to-RS232
64 * bridge chip. The adapters are sold under many different brand
65 * names.
66 *
67 * Datasheets are available at Prolific www site at
68 * http://www.prolific.com.tw. The datasheets don't contain full
69 * programming information for the chip.
70 *
71 * PL-2303HX is probably programmed the same as PL-2303X.
72 *
73 * There are several differences between PL-2303 and PL-2303(H)X.
74 * PL-2303(H)X can do higher bitrate in bulk mode, has _probably_
75 * different command for controlling CRTSCTS and needs special
76 * sequence of commands for initialization which aren't also
77 * documented in the datasheet.
78 */
79
80 #include <sys/stdint.h>
81 #include <sys/stddef.h>
82 #include <sys/param.h>
83 #include <sys/queue.h>
84 #include <sys/types.h>
85 #include <sys/systm.h>
86 #include <sys/kernel.h>
87 #include <sys/bus.h>
88 #include <sys/module.h>
89 #include <sys/lock.h>
90 #include <sys/mutex.h>
91 #include <sys/condvar.h>
92 #include <sys/sysctl.h>
93 #include <sys/sx.h>
94 #include <sys/unistd.h>
95 #include <sys/callout.h>
96 #include <sys/malloc.h>
97 #include <sys/priv.h>
98
99 #include <dev/usb/usb.h>
100 #include <dev/usb/usbdi.h>
101 #include <dev/usb/usbdi_util.h>
102 #include <dev/usb/usb_cdc.h>
103 #include "usbdevs.h"
104
105 #define USB_DEBUG_VAR uplcom_debug
106 #include <dev/usb/usb_debug.h>
107 #include <dev/usb/usb_process.h>
108
109 #include <dev/usb/serial/usb_serial.h>
110
111 #ifdef USB_DEBUG
112 static int uplcom_debug = 0;
113
114 static SYSCTL_NODE(_hw_usb, OID_AUTO, uplcom, CTLFLAG_RW | CTLFLAG_MPSAFE, 0,
115 "USB uplcom");
116 SYSCTL_INT(_hw_usb_uplcom, OID_AUTO, debug, CTLFLAG_RWTUN,
117 &uplcom_debug, 0, "Debug level");
118 #endif
119
120 #define UPLCOM_MODVER 1 /* module version */
121
122 #define UPLCOM_CONFIG_INDEX 0
123 #define UPLCOM_IFACE_INDEX 0
124 #define UPLCOM_SECOND_IFACE_INDEX 1
125
126 #ifndef UPLCOM_INTR_INTERVAL
127 #define UPLCOM_INTR_INTERVAL 0 /* default */
128 #endif
129
130 #define UPLCOM_BULK_BUF_SIZE 1024 /* bytes */
131
132 #define UPLCOM_SET_REQUEST 0x01
133 #define UPLCOM_SET_REQUEST_PL2303HXN 0x80
134 #define UPLCOM_SET_CRTSCTS 0x41
135 #define UPLCOM_SET_CRTSCTS_PL2303X 0x61
136 #define UPLCOM_SET_CRTSCTS_PL2303HXN 0xFA
137 #define UPLCOM_CLEAR_CRTSCTS_PL2303HXN 0xFF
138 #define UPLCOM_CRTSCTS_REG_PL2303HXN 0x0A
139 #define UPLCOM_STATUS_REG_PL2303HX 0x8080
140 #define RSAQ_STATUS_CTS 0x80
141 #define RSAQ_STATUS_OVERRUN_ERROR 0x40
142 #define RSAQ_STATUS_PARITY_ERROR 0x20
143 #define RSAQ_STATUS_FRAME_ERROR 0x10
144 #define RSAQ_STATUS_RING 0x08
145 #define RSAQ_STATUS_BREAK_ERROR 0x04
146 #define RSAQ_STATUS_DSR 0x02
147 #define RSAQ_STATUS_DCD 0x01
148
149 #define TYPE_PL2303 0
150 #define TYPE_PL2303HX 1
151 #define TYPE_PL2303HXD 2
152 #define TYPE_PL2303HXN 3
153
154 #define UPLCOM_STATE_INDEX 8
155
156 enum {
157 UPLCOM_BULK_DT_WR,
158 UPLCOM_BULK_DT_RD,
159 UPLCOM_INTR_DT_RD,
160 UPLCOM_N_TRANSFER,
161 };
162
163 struct uplcom_softc {
164 struct ucom_super_softc sc_super_ucom;
165 struct ucom_softc sc_ucom;
166
167 struct usb_xfer *sc_xfer[UPLCOM_N_TRANSFER];
168 struct usb_device *sc_udev;
169 struct mtx sc_mtx;
170
171 uint16_t sc_line;
172
173 uint8_t sc_lsr; /* local status register */
174 uint8_t sc_msr; /* uplcom status register */
175 uint8_t sc_chiptype; /* type of chip */
176 uint8_t sc_ctrl_iface_no;
177 uint8_t sc_data_iface_no;
178 uint8_t sc_iface_index[2];
179 };
180
181 /* prototypes */
182
183 static usb_error_t uplcom_reset(struct uplcom_softc *, struct usb_device *);
184 static usb_error_t uplcom_pl2303_do(struct usb_device *, uint8_t, uint8_t,
185 uint16_t, uint16_t, uint16_t);
186 static int uplcom_pl2303_init(struct usb_device *, uint8_t);
187 static void uplcom_free(struct ucom_softc *);
188 static void uplcom_cfg_set_dtr(struct ucom_softc *, uint8_t);
189 static void uplcom_cfg_set_rts(struct ucom_softc *, uint8_t);
190 static void uplcom_cfg_set_break(struct ucom_softc *, uint8_t);
191 static int uplcom_pre_param(struct ucom_softc *, struct termios *);
192 static void uplcom_cfg_param(struct ucom_softc *, struct termios *);
193 static void uplcom_start_read(struct ucom_softc *);
194 static void uplcom_stop_read(struct ucom_softc *);
195 static void uplcom_start_write(struct ucom_softc *);
196 static void uplcom_stop_write(struct ucom_softc *);
197 static void uplcom_cfg_get_status(struct ucom_softc *, uint8_t *,
198 uint8_t *);
199 static void uplcom_poll(struct ucom_softc *ucom);
200
201 static device_probe_t uplcom_probe;
202 static device_attach_t uplcom_attach;
203 static device_detach_t uplcom_detach;
204 static void uplcom_free_softc(struct uplcom_softc *);
205
206 static usb_callback_t uplcom_intr_callback;
207 static usb_callback_t uplcom_write_callback;
208 static usb_callback_t uplcom_read_callback;
209
210 static const struct usb_config uplcom_config_data[UPLCOM_N_TRANSFER] = {
211 [UPLCOM_BULK_DT_WR] = {
212 .type = UE_BULK,
213 .endpoint = UE_ADDR_ANY,
214 .direction = UE_DIR_OUT,
215 .bufsize = UPLCOM_BULK_BUF_SIZE,
216 .flags = {.pipe_bof = 1,.force_short_xfer = 1,},
217 .callback = &uplcom_write_callback,
218 .if_index = 0,
219 },
220
221 [UPLCOM_BULK_DT_RD] = {
222 .type = UE_BULK,
223 .endpoint = UE_ADDR_ANY,
224 .direction = UE_DIR_IN,
225 .bufsize = UPLCOM_BULK_BUF_SIZE,
226 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
227 .callback = &uplcom_read_callback,
228 .if_index = 0,
229 },
230
231 [UPLCOM_INTR_DT_RD] = {
232 .type = UE_INTERRUPT,
233 .endpoint = UE_ADDR_ANY,
234 .direction = UE_DIR_IN,
235 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
236 .bufsize = 0, /* use wMaxPacketSize */
237 .callback = &uplcom_intr_callback,
238 .if_index = 1,
239 },
240 };
241
242 static struct ucom_callback uplcom_callback = {
243 .ucom_cfg_get_status = &uplcom_cfg_get_status,
244 .ucom_cfg_set_dtr = &uplcom_cfg_set_dtr,
245 .ucom_cfg_set_rts = &uplcom_cfg_set_rts,
246 .ucom_cfg_set_break = &uplcom_cfg_set_break,
247 .ucom_cfg_param = &uplcom_cfg_param,
248 .ucom_pre_param = &uplcom_pre_param,
249 .ucom_start_read = &uplcom_start_read,
250 .ucom_stop_read = &uplcom_stop_read,
251 .ucom_start_write = &uplcom_start_write,
252 .ucom_stop_write = &uplcom_stop_write,
253 .ucom_poll = &uplcom_poll,
254 .ucom_free = &uplcom_free,
255 };
256
257 #define UPLCOM_DEV(v,p) \
258 { USB_VENDOR(USB_VENDOR_##v), USB_PRODUCT(USB_PRODUCT_##v##_##p) }
259
260 static const STRUCT_USB_HOST_ID uplcom_devs[] = {
261 UPLCOM_DEV(ACERP, S81), /* BenQ S81 phone */
262 UPLCOM_DEV(ADLINK, ND6530), /* ADLINK ND-6530 USB-Serial */
263 UPLCOM_DEV(ALCATEL, OT535), /* Alcatel One Touch 535/735 */
264 UPLCOM_DEV(ALCOR, AU9720), /* Alcor AU9720 USB 2.0-RS232 */
265 UPLCOM_DEV(ANCHOR, SERIAL), /* Anchor Serial adapter */
266 UPLCOM_DEV(ATEN, UC232A), /* PLANEX USB-RS232 URS-03 */
267 UPLCOM_DEV(ATEN, UC232B), /* Prolific USB-RS232 Controller D */
268 UPLCOM_DEV(BELKIN, F5U257), /* Belkin F5U257 USB to Serial */
269 UPLCOM_DEV(COREGA, CGUSBRS232R), /* Corega CG-USBRS232R */
270 UPLCOM_DEV(EPSON, CRESSI_EDY), /* Cressi Edy diving computer */
271 UPLCOM_DEV(EPSON, N2ITION3), /* Zeagle N2iTion3 diving computer */
272 UPLCOM_DEV(ELECOM, UCSGT), /* ELECOM UC-SGT Serial Adapter */
273 UPLCOM_DEV(ELECOM, UCSGT0), /* ELECOM UC-SGT Serial Adapter */
274 UPLCOM_DEV(HAL, IMR001), /* HAL Corporation Crossam2+USB */
275 UPLCOM_DEV(HP, LD220), /* HP LD220 POS Display */
276 UPLCOM_DEV(IODATA, USBRSAQ), /* I/O DATA USB-RSAQ */
277 UPLCOM_DEV(IODATA, USBRSAQ5), /* I/O DATA USB-RSAQ5 */
278 UPLCOM_DEV(ITEGNO, WM1080A), /* iTegno WM1080A GSM/GFPRS modem */
279 UPLCOM_DEV(ITEGNO, WM2080A), /* iTegno WM2080A CDMA modem */
280 UPLCOM_DEV(LEADTEK, 9531), /* Leadtek 9531 GPS */
281 UPLCOM_DEV(MICROSOFT, 700WX), /* Microsoft Palm 700WX */
282 UPLCOM_DEV(MOBILEACTION, MA620), /* Mobile Action MA-620 Infrared Adapter */
283 UPLCOM_DEV(NETINDEX, WS002IN), /* Willcom W-S002IN */
284 UPLCOM_DEV(NOKIA2, CA42), /* Nokia CA-42 cable */
285 UPLCOM_DEV(OTI, DKU5), /* OTI DKU-5 cable */
286 UPLCOM_DEV(PANASONIC, TYTP50P6S), /* Panasonic TY-TP50P6-S flat screen */
287 UPLCOM_DEV(PLX, CA42), /* PLX CA-42 clone cable */
288 UPLCOM_DEV(PROLIFIC, ALLTRONIX_GPRS), /* Alltronix ACM003U00 modem */
289 UPLCOM_DEV(PROLIFIC, ALDIGA_AL11U), /* AlDiga AL-11U modem */
290 UPLCOM_DEV(PROLIFIC, DCU11), /* DCU-11 Phone Cable */
291 UPLCOM_DEV(PROLIFIC, HCR331), /* HCR331 Card Reader */
292 UPLCOM_DEV(PROLIFIC, MICROMAX_610U), /* Micromax 610U modem */
293 UPLCOM_DEV(PROLIFIC, MOTOROLA), /* Motorola cable */
294 UPLCOM_DEV(PROLIFIC, PHAROS), /* Prolific Pharos */
295 UPLCOM_DEV(PROLIFIC, PL2303), /* Generic adapter */
296 UPLCOM_DEV(PROLIFIC, PL2303GC), /* Generic adapter (PL2303HXN, type GC) */
297 UPLCOM_DEV(PROLIFIC, PL2303GB), /* Generic adapter (PL2303HXN, type GB) */
298 UPLCOM_DEV(PROLIFIC, PL2303GT), /* Generic adapter (PL2303HXN, type GT) */
299 UPLCOM_DEV(PROLIFIC, PL2303GL), /* Generic adapter (PL2303HXN, type GL) */
300 UPLCOM_DEV(PROLIFIC, PL2303GE), /* Generic adapter (PL2303HXN, type GE) */
301 UPLCOM_DEV(PROLIFIC, PL2303GS), /* Generic adapter (PL2303HXN, type GS) */
302 UPLCOM_DEV(PROLIFIC, RSAQ2), /* I/O DATA USB-RSAQ2 */
303 UPLCOM_DEV(PROLIFIC, RSAQ3), /* I/O DATA USB-RSAQ3 */
304 UPLCOM_DEV(PROLIFIC, UIC_MSR206), /* UIC MSR206 Card Reader */
305 UPLCOM_DEV(PROLIFIC2, PL2303), /* Prolific adapter */
306 UPLCOM_DEV(RADIOSHACK, USBCABLE), /* Radio Shack USB Adapter */
307 UPLCOM_DEV(RATOC, REXUSB60), /* RATOC REX-USB60 */
308 UPLCOM_DEV(SAGEM, USBSERIAL), /* Sagem USB-Serial Controller */
309 UPLCOM_DEV(SAMSUNG, I330), /* Samsung I330 phone cradle */
310 UPLCOM_DEV(SANWA, KB_USB2), /* Sanwa KB-USB2 Multimeter cable */
311 UPLCOM_DEV(SIEMENS3, EF81), /* Siemens EF81 */
312 UPLCOM_DEV(SIEMENS3, SX1), /* Siemens SX1 */
313 UPLCOM_DEV(SIEMENS3, X65), /* Siemens X65 */
314 UPLCOM_DEV(SIEMENS3, X75), /* Siemens X75 */
315 UPLCOM_DEV(SITECOM, SERIAL), /* Sitecom USB to Serial */
316 UPLCOM_DEV(SMART, PL2303), /* SMART Technologies USB to Serial */
317 UPLCOM_DEV(SONY, QN3), /* Sony QN3 phone cable */
318 UPLCOM_DEV(SONYERICSSON, DATAPILOT), /* Sony Ericsson Datapilot */
319 UPLCOM_DEV(SONYERICSSON, DCU10), /* Sony Ericsson DCU-10 Cable */
320 UPLCOM_DEV(SOURCENEXT, KEIKAI8), /* SOURCENEXT KeikaiDenwa 8 */
321 UPLCOM_DEV(SOURCENEXT, KEIKAI8_CHG), /* SOURCENEXT KeikaiDenwa 8 with charger */
322 UPLCOM_DEV(SPEEDDRAGON, MS3303H), /* Speed Dragon USB-Serial */
323 UPLCOM_DEV(SYNTECH, CPT8001C), /* Syntech CPT-8001C Barcode scanner */
324 UPLCOM_DEV(TDK, UHA6400), /* TDK USB-PHS Adapter UHA6400 */
325 UPLCOM_DEV(TDK, UPA9664), /* TDK USB-PHS Adapter UPA9664 */
326 UPLCOM_DEV(TRIPPLITE, U209), /* Tripp-Lite U209-000-R USB to Serial */
327 UPLCOM_DEV(YCCABLE, PL2303), /* YC Cable USB-Serial */
328 };
329 #undef UPLCOM_DEV
330
331 static device_method_t uplcom_methods[] = {
332 DEVMETHOD(device_probe, uplcom_probe),
333 DEVMETHOD(device_attach, uplcom_attach),
334 DEVMETHOD(device_detach, uplcom_detach),
335 DEVMETHOD_END
336 };
337
338 static driver_t uplcom_driver = {
339 .name = "uplcom",
340 .methods = uplcom_methods,
341 .size = sizeof(struct uplcom_softc),
342 };
343
344 DRIVER_MODULE(uplcom, uhub, uplcom_driver, NULL, NULL);
345 MODULE_DEPEND(uplcom, ucom, 1, 1, 1);
346 MODULE_DEPEND(uplcom, usb, 1, 1, 1);
347 MODULE_VERSION(uplcom, UPLCOM_MODVER);
348 USB_PNP_HOST_INFO(uplcom_devs);
349
350 static int
uplcom_probe(device_t dev)351 uplcom_probe(device_t dev)
352 {
353 struct usb_attach_arg *uaa = device_get_ivars(dev);
354
355 DPRINTFN(11, "\n");
356
357 if (uaa->usb_mode != USB_MODE_HOST) {
358 return (ENXIO);
359 }
360 if (uaa->info.bConfigIndex != UPLCOM_CONFIG_INDEX) {
361 return (ENXIO);
362 }
363 if (uaa->info.bIfaceIndex != UPLCOM_IFACE_INDEX) {
364 return (ENXIO);
365 }
366 return (usbd_lookup_id_by_uaa(uplcom_devs, sizeof(uplcom_devs), uaa));
367 }
368
369 static int
uplcom_attach(device_t dev)370 uplcom_attach(device_t dev)
371 {
372 struct usb_attach_arg *uaa = device_get_ivars(dev);
373 struct uplcom_softc *sc = device_get_softc(dev);
374 struct usb_interface *iface;
375 struct usb_interface_descriptor *id;
376 struct usb_device_descriptor *dd;
377 int error;
378
379 struct usb_device_request req;
380 usb_error_t err;
381 uint8_t buf[4];
382
383 DPRINTFN(11, "\n");
384
385 device_set_usb_desc(dev);
386 mtx_init(&sc->sc_mtx, "uplcom", NULL, MTX_DEF);
387 ucom_ref(&sc->sc_super_ucom);
388
389 DPRINTF("sc = %p\n", sc);
390
391 sc->sc_udev = uaa->device;
392
393 dd = usbd_get_device_descriptor(sc->sc_udev);
394
395 switch (UGETW(dd->bcdDevice)) {
396 case 0x0300:
397 sc->sc_chiptype = TYPE_PL2303HX;
398 /* or TA, that is HX with external crystal */
399 break;
400 case 0x0400:
401 sc->sc_chiptype = TYPE_PL2303HXD;
402 /* or EA, that is HXD with ESD protection */
403 /* or RA, that has internal voltage level converter that works only up to 1Mbaud (!) */
404 break;
405 case 0x0500:
406 sc->sc_chiptype = TYPE_PL2303HXD;
407 /* in fact it's TB, that is HXD with external crystal */
408 break;
409 default:
410 /* NOTE: I have no info about the bcdDevice for the base PL2303 (up to 1.2Mbaud,
411 only fixed rates) and for PL2303SA (8-pin chip, up to 115200 baud */
412 /* Determine the chip type. This algorithm is taken from Linux. */
413 if (dd->bDeviceClass == 0x02)
414 sc->sc_chiptype = TYPE_PL2303;
415 else if (dd->bMaxPacketSize == 0x40)
416 sc->sc_chiptype = TYPE_PL2303HX;
417 else
418 sc->sc_chiptype = TYPE_PL2303;
419 break;
420 }
421
422 /*
423 * The new chip revision PL2303HXN is only compatible with the new
424 * UPLCOM_SET_REQUEST_PL2303HXN command. Issuing the old command
425 * UPLCOM_SET_REQUEST to the new chip raises an error. Thus, PL2303HX
426 * and PL2303HXN can be distinguished by issuing an old-style request
427 * (on a status register) to the new chip and checking the error.
428 */
429 if (sc->sc_chiptype == TYPE_PL2303HX) {
430 req.bmRequestType = UT_READ_VENDOR_DEVICE;
431 req.bRequest = UPLCOM_SET_REQUEST;
432 USETW(req.wValue, UPLCOM_STATUS_REG_PL2303HX);
433 req.wIndex[0] = sc->sc_data_iface_no;
434 req.wIndex[1] = 0;
435 USETW(req.wLength, 1);
436 err = usbd_do_request(sc->sc_udev, NULL, &req, buf);
437 if (err)
438 sc->sc_chiptype = TYPE_PL2303HXN;
439 }
440
441 switch (sc->sc_chiptype) {
442 case TYPE_PL2303:
443 DPRINTF("chiptype: 2303\n");
444 break;
445 case TYPE_PL2303HX:
446 DPRINTF("chiptype: 2303HX/TA\n");
447 break;
448 case TYPE_PL2303HXN:
449 DPRINTF("chiptype: 2303HXN\n");
450 break;
451 case TYPE_PL2303HXD:
452 DPRINTF("chiptype: 2303HXD/TB/RA/EA\n");
453 break;
454 default:
455 DPRINTF("chiptype: unknown %d\n", sc->sc_chiptype);
456 break;
457 }
458
459 /*
460 * USB-RSAQ1 has two interface
461 *
462 * USB-RSAQ1 | USB-RSAQ2
463 * -----------------+-----------------
464 * Interface 0 |Interface 0
465 * Interrupt(0x81) | Interrupt(0x81)
466 * -----------------+ BulkIN(0x02)
467 * Interface 1 | BulkOUT(0x83)
468 * BulkIN(0x02) |
469 * BulkOUT(0x83) |
470 */
471
472 sc->sc_ctrl_iface_no = uaa->info.bIfaceNum;
473 sc->sc_iface_index[1] = UPLCOM_IFACE_INDEX;
474
475 iface = usbd_get_iface(uaa->device, UPLCOM_SECOND_IFACE_INDEX);
476 if (iface) {
477 id = usbd_get_interface_descriptor(iface);
478 if (id == NULL) {
479 device_printf(dev, "no interface descriptor (2)\n");
480 goto detach;
481 }
482 sc->sc_data_iface_no = id->bInterfaceNumber;
483 sc->sc_iface_index[0] = UPLCOM_SECOND_IFACE_INDEX;
484 usbd_set_parent_iface(uaa->device,
485 UPLCOM_SECOND_IFACE_INDEX, uaa->info.bIfaceIndex);
486 } else {
487 sc->sc_data_iface_no = sc->sc_ctrl_iface_no;
488 sc->sc_iface_index[0] = UPLCOM_IFACE_INDEX;
489 }
490
491 error = usbd_transfer_setup(uaa->device,
492 sc->sc_iface_index, sc->sc_xfer, uplcom_config_data,
493 UPLCOM_N_TRANSFER, sc, &sc->sc_mtx);
494 if (error) {
495 DPRINTF("one or more missing USB endpoints, "
496 "error=%s\n", usbd_errstr(error));
497 goto detach;
498 }
499 error = uplcom_reset(sc, uaa->device);
500 if (error) {
501 device_printf(dev, "reset failed, error=%s\n",
502 usbd_errstr(error));
503 goto detach;
504 }
505
506 if (sc->sc_chiptype == TYPE_PL2303) {
507 /* HX variants seem to lock up after a clear stall request. */
508 mtx_lock(&sc->sc_mtx);
509 usbd_xfer_set_stall(sc->sc_xfer[UPLCOM_BULK_DT_WR]);
510 usbd_xfer_set_stall(sc->sc_xfer[UPLCOM_BULK_DT_RD]);
511 mtx_unlock(&sc->sc_mtx);
512 } else if (sc->sc_chiptype == TYPE_PL2303HX ||
513 sc->sc_chiptype == TYPE_PL2303HXD) {
514 /* reset upstream data pipes */
515 if (uplcom_pl2303_do(sc->sc_udev, UT_WRITE_VENDOR_DEVICE,
516 UPLCOM_SET_REQUEST, 8, 0, 0) ||
517 uplcom_pl2303_do(sc->sc_udev, UT_WRITE_VENDOR_DEVICE,
518 UPLCOM_SET_REQUEST, 9, 0, 0)) {
519 goto detach;
520 }
521 } else if (sc->sc_chiptype == TYPE_PL2303HXN) {
522 /* reset upstream data pipes */
523 if (uplcom_pl2303_do(sc->sc_udev, UT_WRITE_VENDOR_DEVICE,
524 UPLCOM_SET_REQUEST_PL2303HXN, 0x07, 0x03, 0)) {
525 goto detach;
526 }
527 }
528
529 error = ucom_attach(&sc->sc_super_ucom, &sc->sc_ucom, 1, sc,
530 &uplcom_callback, &sc->sc_mtx);
531 if (error) {
532 goto detach;
533 }
534 /*
535 * do the initialization during attach so that the system does not
536 * sleep during open:
537 */
538 if (uplcom_pl2303_init(uaa->device, sc->sc_chiptype)) {
539 device_printf(dev, "init failed\n");
540 goto detach;
541 }
542 ucom_set_pnpinfo_usb(&sc->sc_super_ucom, dev);
543
544 return (0);
545
546 detach:
547 uplcom_detach(dev);
548 return (ENXIO);
549 }
550
551 static int
uplcom_detach(device_t dev)552 uplcom_detach(device_t dev)
553 {
554 struct uplcom_softc *sc = device_get_softc(dev);
555
556 DPRINTF("sc=%p\n", sc);
557
558 ucom_detach(&sc->sc_super_ucom, &sc->sc_ucom);
559 usbd_transfer_unsetup(sc->sc_xfer, UPLCOM_N_TRANSFER);
560
561 device_claim_softc(dev);
562
563 uplcom_free_softc(sc);
564
565 return (0);
566 }
567
568 UCOM_UNLOAD_DRAIN(uplcom);
569
570 static void
uplcom_free_softc(struct uplcom_softc * sc)571 uplcom_free_softc(struct uplcom_softc *sc)
572 {
573 if (ucom_unref(&sc->sc_super_ucom)) {
574 mtx_destroy(&sc->sc_mtx);
575 device_free_softc(sc);
576 }
577 }
578
579 static void
uplcom_free(struct ucom_softc * ucom)580 uplcom_free(struct ucom_softc *ucom)
581 {
582 uplcom_free_softc(ucom->sc_parent);
583 }
584
585 static usb_error_t
uplcom_reset(struct uplcom_softc * sc,struct usb_device * udev)586 uplcom_reset(struct uplcom_softc *sc, struct usb_device *udev)
587 {
588 struct usb_device_request req;
589
590 if (sc->sc_chiptype == TYPE_PL2303HXN) {
591 /* PL2303HXN doesn't need this reset sequence */
592 return (0);
593 }
594
595 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
596 req.bRequest = UPLCOM_SET_REQUEST;
597 USETW(req.wValue, 0);
598 req.wIndex[0] = sc->sc_data_iface_no;
599 req.wIndex[1] = 0;
600 USETW(req.wLength, 0);
601
602 return (usbd_do_request(udev, NULL, &req, NULL));
603 }
604
605 static usb_error_t
uplcom_pl2303_do(struct usb_device * udev,uint8_t req_type,uint8_t request,uint16_t value,uint16_t index,uint16_t length)606 uplcom_pl2303_do(struct usb_device *udev, uint8_t req_type, uint8_t request,
607 uint16_t value, uint16_t index, uint16_t length)
608 {
609 struct usb_device_request req;
610 usb_error_t err;
611 uint8_t buf[4];
612
613 req.bmRequestType = req_type;
614 req.bRequest = request;
615 USETW(req.wValue, value);
616 USETW(req.wIndex, index);
617 USETW(req.wLength, length);
618
619 err = usbd_do_request(udev, NULL, &req, buf);
620 if (err) {
621 DPRINTF("error=%s\n", usbd_errstr(err));
622 return (1);
623 }
624 return (0);
625 }
626
627 static int
uplcom_pl2303_init(struct usb_device * udev,uint8_t chiptype)628 uplcom_pl2303_init(struct usb_device *udev, uint8_t chiptype)
629 {
630 int err;
631
632 if (chiptype == TYPE_PL2303HXN) {
633 /* PL2303HXN doesn't need this initialization sequence */
634 return (0);
635 }
636
637 if (uplcom_pl2303_do(udev, UT_READ_VENDOR_DEVICE, UPLCOM_SET_REQUEST, 0x8484, 0, 1)
638 || uplcom_pl2303_do(udev, UT_WRITE_VENDOR_DEVICE, UPLCOM_SET_REQUEST, 0x0404, 0, 0)
639 || uplcom_pl2303_do(udev, UT_READ_VENDOR_DEVICE, UPLCOM_SET_REQUEST, 0x8484, 0, 1)
640 || uplcom_pl2303_do(udev, UT_READ_VENDOR_DEVICE, UPLCOM_SET_REQUEST, 0x8383, 0, 1)
641 || uplcom_pl2303_do(udev, UT_READ_VENDOR_DEVICE, UPLCOM_SET_REQUEST, 0x8484, 0, 1)
642 || uplcom_pl2303_do(udev, UT_WRITE_VENDOR_DEVICE, UPLCOM_SET_REQUEST, 0x0404, 1, 0)
643 || uplcom_pl2303_do(udev, UT_READ_VENDOR_DEVICE, UPLCOM_SET_REQUEST, 0x8484, 0, 1)
644 || uplcom_pl2303_do(udev, UT_READ_VENDOR_DEVICE, UPLCOM_SET_REQUEST, 0x8383, 0, 1)
645 || uplcom_pl2303_do(udev, UT_WRITE_VENDOR_DEVICE, UPLCOM_SET_REQUEST, 0, 1, 0)
646 || uplcom_pl2303_do(udev, UT_WRITE_VENDOR_DEVICE, UPLCOM_SET_REQUEST, 1, 0, 0))
647 return (EIO);
648
649 if (chiptype != TYPE_PL2303)
650 err = uplcom_pl2303_do(udev, UT_WRITE_VENDOR_DEVICE, UPLCOM_SET_REQUEST, 2, 0x44, 0);
651 else
652 err = uplcom_pl2303_do(udev, UT_WRITE_VENDOR_DEVICE, UPLCOM_SET_REQUEST, 2, 0x24, 0);
653 if (err)
654 return (EIO);
655
656 return (0);
657 }
658
659 static void
uplcom_cfg_set_dtr(struct ucom_softc * ucom,uint8_t onoff)660 uplcom_cfg_set_dtr(struct ucom_softc *ucom, uint8_t onoff)
661 {
662 struct uplcom_softc *sc = ucom->sc_parent;
663 struct usb_device_request req;
664
665 DPRINTF("onoff = %d\n", onoff);
666
667 if (onoff)
668 sc->sc_line |= UCDC_LINE_DTR;
669 else
670 sc->sc_line &= ~UCDC_LINE_DTR;
671
672 req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
673 req.bRequest = UCDC_SET_CONTROL_LINE_STATE;
674 USETW(req.wValue, sc->sc_line);
675 req.wIndex[0] = sc->sc_data_iface_no;
676 req.wIndex[1] = 0;
677 USETW(req.wLength, 0);
678
679 ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
680 &req, NULL, 0, 1000);
681 }
682
683 static void
uplcom_cfg_set_rts(struct ucom_softc * ucom,uint8_t onoff)684 uplcom_cfg_set_rts(struct ucom_softc *ucom, uint8_t onoff)
685 {
686 struct uplcom_softc *sc = ucom->sc_parent;
687 struct usb_device_request req;
688
689 DPRINTF("onoff = %d\n", onoff);
690
691 if (onoff)
692 sc->sc_line |= UCDC_LINE_RTS;
693 else
694 sc->sc_line &= ~UCDC_LINE_RTS;
695
696 req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
697 req.bRequest = UCDC_SET_CONTROL_LINE_STATE;
698 USETW(req.wValue, sc->sc_line);
699 req.wIndex[0] = sc->sc_data_iface_no;
700 req.wIndex[1] = 0;
701 USETW(req.wLength, 0);
702
703 ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
704 &req, NULL, 0, 1000);
705 }
706
707 static void
uplcom_cfg_set_break(struct ucom_softc * ucom,uint8_t onoff)708 uplcom_cfg_set_break(struct ucom_softc *ucom, uint8_t onoff)
709 {
710 struct uplcom_softc *sc = ucom->sc_parent;
711 struct usb_device_request req;
712 uint16_t temp;
713
714 DPRINTF("onoff = %d\n", onoff);
715
716 temp = (onoff ? UCDC_BREAK_ON : UCDC_BREAK_OFF);
717
718 req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
719 req.bRequest = UCDC_SEND_BREAK;
720 USETW(req.wValue, temp);
721 req.wIndex[0] = sc->sc_data_iface_no;
722 req.wIndex[1] = 0;
723 USETW(req.wLength, 0);
724
725 ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
726 &req, NULL, 0, 1000);
727 }
728
729 /*
730 * NOTE: These baud rates are officially supported, they can be written
731 * directly into dwDTERate register.
732 *
733 * Free baudrate setting is not supported by the base PL2303, and on
734 * other models it requires writing a divisor value to dwDTERate instead
735 * of the raw baudrate. The formula for divisor calculation is not published
736 * by the vendor, so it is speculative, though the official product homepage
737 * refers to the Linux module source as a reference implementation.
738 */
739 static const uint32_t uplcom_rates[] = {
740 /*
741 * Basic 'standard' speed rates, supported by all models
742 * NOTE: 900 and 56000 actually works as well
743 */
744 75, 150, 300, 600, 900, 1200, 1800, 2400, 3600, 4800, 7200, 9600, 14400,
745 19200, 28800, 38400, 56000, 57600, 115200,
746 /*
747 * Advanced speed rates up to 6Mbs, supported by HX/TA and HXD/TB/EA/RA
748 * NOTE: regardless of the spec, 256000 does not work
749 */
750 128000, 134400, 161280, 201600, 230400, 268800, 403200, 460800, 614400,
751 806400, 921600, 1228800, 2457600, 3000000, 6000000,
752 /*
753 * Advanced speed rates up to 12, supported by HXD/TB/EA/RA
754 */
755 12000000
756 };
757
758 #define N_UPLCOM_RATES nitems(uplcom_rates)
759
760 static int
uplcom_baud_supported(unsigned speed)761 uplcom_baud_supported(unsigned speed)
762 {
763 int i;
764 for (i = 0; i < N_UPLCOM_RATES; i++) {
765 if (uplcom_rates[i] == speed)
766 return 1;
767 }
768 return 0;
769 }
770
771 static int
uplcom_pre_param(struct ucom_softc * ucom,struct termios * t)772 uplcom_pre_param(struct ucom_softc *ucom, struct termios *t)
773 {
774 struct uplcom_softc *sc = ucom->sc_parent;
775
776 DPRINTF("\n");
777
778 /**
779 * Check requested baud rate.
780 *
781 * The PL2303 can only set specific baud rates, up to 1228800 baud.
782 * The PL2303HX can set any baud rate up to 6Mb.
783 * The PL2303HX rev. D and PL2303HXN can set any baud rate up to 12Mb.
784 *
785 */
786
787 /* accept raw divisor data, if someone wants to do the math in user domain */
788 if (t->c_ospeed & 0x80000000)
789 return 0;
790 switch (sc->sc_chiptype) {
791 case TYPE_PL2303HXN:
792 if (t->c_ospeed <= 12000000)
793 return (0);
794 break;
795 case TYPE_PL2303HXD:
796 if (t->c_ospeed <= 12000000)
797 return (0);
798 break;
799 case TYPE_PL2303HX:
800 if (t->c_ospeed <= 6000000)
801 return (0);
802 break;
803 default:
804 if (uplcom_baud_supported(t->c_ospeed))
805 return (0);
806 break;
807 }
808
809 DPRINTF("uplcom_param: bad baud rate (%d)\n", t->c_ospeed);
810 return (EIO);
811 }
812
813 static unsigned
uplcom_encode_baud_rate_divisor(uint8_t * buf,unsigned baud)814 uplcom_encode_baud_rate_divisor(uint8_t *buf, unsigned baud)
815 {
816 unsigned baseline, mantissa, exponent;
817
818 /* Determine the baud rate divisor. This algorithm is taken from Linux. */
819 /*
820 * Apparently the formula is:
821 * baudrate = baseline / (mantissa * 4^exponent)
822 * where
823 * mantissa = buf[8:0]
824 * exponent = buf[11:9]
825 */
826 if (baud == 0)
827 baud = 1;
828 baseline = 383385600;
829 mantissa = baseline / baud;
830 if (mantissa == 0)
831 mantissa = 1;
832 exponent = 0;
833 while (mantissa >= 512) {
834 if (exponent < 7) {
835 mantissa >>= 2; /* divide by 4 */
836 exponent++;
837 } else {
838 /* Exponent is maxed. Trim mantissa and leave. This gives approx. 45.8 baud */
839 mantissa = 511;
840 break;
841 }
842 }
843
844 buf[3] = 0x80;
845 buf[2] = 0;
846 buf[1] = exponent << 1 | mantissa >> 8;
847 buf[0] = mantissa & 0xff;
848
849 /* Calculate and return the exact baud rate. */
850 baud = (baseline / mantissa) >> (exponent << 1);
851 DPRINTF("real baud rate will be %u\n", baud);
852
853 return baud;
854 }
855 static void
uplcom_cfg_param(struct ucom_softc * ucom,struct termios * t)856 uplcom_cfg_param(struct ucom_softc *ucom, struct termios *t)
857 {
858 struct uplcom_softc *sc = ucom->sc_parent;
859 struct usb_cdc_line_state ls;
860 struct usb_device_request req;
861
862 DPRINTF("sc = %p\n", sc);
863
864 memset(&ls, 0, sizeof(ls));
865
866 /*
867 * NOTE: If unsupported baud rates are set directly, the PL2303* uses 9600 baud.
868 */
869 if ((t->c_ospeed & 0x80000000) || uplcom_baud_supported(t->c_ospeed))
870 USETDW(ls.dwDTERate, t->c_ospeed);
871 else
872 t->c_ospeed = uplcom_encode_baud_rate_divisor((uint8_t*)&ls.dwDTERate, t->c_ospeed);
873
874 if (t->c_cflag & CSTOPB) {
875 if ((t->c_cflag & CSIZE) == CS5) {
876 /*
877 * NOTE: Comply with "real" UARTs / RS232:
878 * use 1.5 instead of 2 stop bits with 5 data bits
879 */
880 ls.bCharFormat = UCDC_STOP_BIT_1_5;
881 } else {
882 ls.bCharFormat = UCDC_STOP_BIT_2;
883 }
884 } else {
885 ls.bCharFormat = UCDC_STOP_BIT_1;
886 }
887
888 if (t->c_cflag & PARENB) {
889 if (t->c_cflag & PARODD) {
890 ls.bParityType = UCDC_PARITY_ODD;
891 } else {
892 ls.bParityType = UCDC_PARITY_EVEN;
893 }
894 } else {
895 ls.bParityType = UCDC_PARITY_NONE;
896 }
897
898 switch (t->c_cflag & CSIZE) {
899 case CS5:
900 ls.bDataBits = 5;
901 break;
902 case CS6:
903 ls.bDataBits = 6;
904 break;
905 case CS7:
906 ls.bDataBits = 7;
907 break;
908 case CS8:
909 ls.bDataBits = 8;
910 break;
911 }
912
913 DPRINTF("rate=0x%08x fmt=%d parity=%d bits=%d\n",
914 UGETDW(ls.dwDTERate), ls.bCharFormat,
915 ls.bParityType, ls.bDataBits);
916
917 req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
918 req.bRequest = UCDC_SET_LINE_CODING;
919 USETW(req.wValue, 0);
920 req.wIndex[0] = sc->sc_data_iface_no;
921 req.wIndex[1] = 0;
922 USETW(req.wLength, UCDC_LINE_STATE_LENGTH);
923
924 ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
925 &req, &ls, 0, 1000);
926
927 if (t->c_cflag & CRTSCTS) {
928 DPRINTF("crtscts = on\n");
929
930 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
931 if (sc->sc_chiptype == TYPE_PL2303HXN) {
932 req.bRequest = UPLCOM_SET_REQUEST_PL2303HXN;
933 USETW(req.wValue, UPLCOM_CRTSCTS_REG_PL2303HXN);
934 USETW(req.wIndex, UPLCOM_SET_CRTSCTS_PL2303HXN);
935 } else {
936 req.bRequest = UPLCOM_SET_REQUEST;
937 USETW(req.wValue, 0);
938 if (sc->sc_chiptype != TYPE_PL2303)
939 USETW(req.wIndex, UPLCOM_SET_CRTSCTS_PL2303X);
940 else
941 USETW(req.wIndex, UPLCOM_SET_CRTSCTS);
942 }
943 USETW(req.wLength, 0);
944
945 ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
946 &req, NULL, 0, 1000);
947 } else {
948 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
949 if (sc->sc_chiptype == TYPE_PL2303HXN) {
950 req.bRequest = UPLCOM_SET_REQUEST_PL2303HXN;
951 USETW(req.wValue, UPLCOM_CRTSCTS_REG_PL2303HXN);
952 USETW(req.wIndex, UPLCOM_CLEAR_CRTSCTS_PL2303HXN);
953 }
954 else {
955 req.bRequest = UPLCOM_SET_REQUEST;
956 USETW(req.wValue, 0);
957 USETW(req.wIndex, 0);
958 }
959 USETW(req.wLength, 0);
960 ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
961 &req, NULL, 0, 1000);
962 }
963 }
964
965 static void
uplcom_start_read(struct ucom_softc * ucom)966 uplcom_start_read(struct ucom_softc *ucom)
967 {
968 struct uplcom_softc *sc = ucom->sc_parent;
969
970 /* start interrupt endpoint */
971 usbd_transfer_start(sc->sc_xfer[UPLCOM_INTR_DT_RD]);
972
973 /* start read endpoint */
974 usbd_transfer_start(sc->sc_xfer[UPLCOM_BULK_DT_RD]);
975 }
976
977 static void
uplcom_stop_read(struct ucom_softc * ucom)978 uplcom_stop_read(struct ucom_softc *ucom)
979 {
980 struct uplcom_softc *sc = ucom->sc_parent;
981
982 /* stop interrupt endpoint */
983 usbd_transfer_stop(sc->sc_xfer[UPLCOM_INTR_DT_RD]);
984
985 /* stop read endpoint */
986 usbd_transfer_stop(sc->sc_xfer[UPLCOM_BULK_DT_RD]);
987 }
988
989 static void
uplcom_start_write(struct ucom_softc * ucom)990 uplcom_start_write(struct ucom_softc *ucom)
991 {
992 struct uplcom_softc *sc = ucom->sc_parent;
993
994 usbd_transfer_start(sc->sc_xfer[UPLCOM_BULK_DT_WR]);
995 }
996
997 static void
uplcom_stop_write(struct ucom_softc * ucom)998 uplcom_stop_write(struct ucom_softc *ucom)
999 {
1000 struct uplcom_softc *sc = ucom->sc_parent;
1001
1002 usbd_transfer_stop(sc->sc_xfer[UPLCOM_BULK_DT_WR]);
1003 }
1004
1005 static void
uplcom_cfg_get_status(struct ucom_softc * ucom,uint8_t * lsr,uint8_t * msr)1006 uplcom_cfg_get_status(struct ucom_softc *ucom, uint8_t *lsr, uint8_t *msr)
1007 {
1008 struct uplcom_softc *sc = ucom->sc_parent;
1009
1010 DPRINTF("\n");
1011
1012 *lsr = sc->sc_lsr;
1013 *msr = sc->sc_msr;
1014 }
1015
1016 static void
uplcom_intr_callback(struct usb_xfer * xfer,usb_error_t error)1017 uplcom_intr_callback(struct usb_xfer *xfer, usb_error_t error)
1018 {
1019 struct uplcom_softc *sc = usbd_xfer_softc(xfer);
1020 struct usb_page_cache *pc;
1021 uint8_t buf[9];
1022 int actlen;
1023
1024 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
1025
1026 switch (USB_GET_STATE(xfer)) {
1027 case USB_ST_TRANSFERRED:
1028
1029 DPRINTF("actlen = %u\n", actlen);
1030
1031 if (actlen >= 9) {
1032 pc = usbd_xfer_get_frame(xfer, 0);
1033 usbd_copy_out(pc, 0, buf, sizeof(buf));
1034
1035 DPRINTF("status = 0x%02x\n", buf[UPLCOM_STATE_INDEX]);
1036
1037 sc->sc_lsr = 0;
1038 sc->sc_msr = 0;
1039
1040 if (buf[UPLCOM_STATE_INDEX] & RSAQ_STATUS_CTS) {
1041 sc->sc_msr |= SER_CTS;
1042 }
1043 if (buf[UPLCOM_STATE_INDEX] & RSAQ_STATUS_OVERRUN_ERROR) {
1044 sc->sc_lsr |= ULSR_OE;
1045 }
1046 if (buf[UPLCOM_STATE_INDEX] & RSAQ_STATUS_PARITY_ERROR) {
1047 sc->sc_lsr |= ULSR_PE;
1048 }
1049 if (buf[UPLCOM_STATE_INDEX] & RSAQ_STATUS_FRAME_ERROR) {
1050 sc->sc_lsr |= ULSR_FE;
1051 }
1052 if (buf[UPLCOM_STATE_INDEX] & RSAQ_STATUS_RING) {
1053 sc->sc_msr |= SER_RI;
1054 }
1055 if (buf[UPLCOM_STATE_INDEX] & RSAQ_STATUS_BREAK_ERROR) {
1056 sc->sc_lsr |= ULSR_BI;
1057 }
1058 if (buf[UPLCOM_STATE_INDEX] & RSAQ_STATUS_DSR) {
1059 sc->sc_msr |= SER_DSR;
1060 }
1061 if (buf[UPLCOM_STATE_INDEX] & RSAQ_STATUS_DCD) {
1062 sc->sc_msr |= SER_DCD;
1063 }
1064 ucom_status_change(&sc->sc_ucom);
1065 }
1066 case USB_ST_SETUP:
1067 tr_setup:
1068 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
1069 usbd_transfer_submit(xfer);
1070 return;
1071
1072 default: /* Error */
1073 if (error != USB_ERR_CANCELLED) {
1074 /* try to clear stall first */
1075 usbd_xfer_set_stall(xfer);
1076 goto tr_setup;
1077 }
1078 return;
1079 }
1080 }
1081
1082 static void
uplcom_write_callback(struct usb_xfer * xfer,usb_error_t error)1083 uplcom_write_callback(struct usb_xfer *xfer, usb_error_t error)
1084 {
1085 struct uplcom_softc *sc = usbd_xfer_softc(xfer);
1086 struct usb_page_cache *pc;
1087 uint32_t actlen;
1088
1089 switch (USB_GET_STATE(xfer)) {
1090 case USB_ST_SETUP:
1091 case USB_ST_TRANSFERRED:
1092 tr_setup:
1093 pc = usbd_xfer_get_frame(xfer, 0);
1094 if (ucom_get_data(&sc->sc_ucom, pc, 0,
1095 UPLCOM_BULK_BUF_SIZE, &actlen)) {
1096 DPRINTF("actlen = %d\n", actlen);
1097
1098 usbd_xfer_set_frame_len(xfer, 0, actlen);
1099 usbd_transfer_submit(xfer);
1100 }
1101 return;
1102
1103 default: /* Error */
1104 if (error != USB_ERR_CANCELLED) {
1105 /* try to clear stall first */
1106 usbd_xfer_set_stall(xfer);
1107 goto tr_setup;
1108 }
1109 return;
1110 }
1111 }
1112
1113 static void
uplcom_read_callback(struct usb_xfer * xfer,usb_error_t error)1114 uplcom_read_callback(struct usb_xfer *xfer, usb_error_t error)
1115 {
1116 struct uplcom_softc *sc = usbd_xfer_softc(xfer);
1117 struct usb_page_cache *pc;
1118 int actlen;
1119
1120 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
1121
1122 switch (USB_GET_STATE(xfer)) {
1123 case USB_ST_TRANSFERRED:
1124 pc = usbd_xfer_get_frame(xfer, 0);
1125 ucom_put_data(&sc->sc_ucom, pc, 0, actlen);
1126
1127 case USB_ST_SETUP:
1128 tr_setup:
1129 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
1130 usbd_transfer_submit(xfer);
1131 return;
1132
1133 default: /* Error */
1134 if (error != USB_ERR_CANCELLED) {
1135 /* try to clear stall first */
1136 usbd_xfer_set_stall(xfer);
1137 goto tr_setup;
1138 }
1139 return;
1140 }
1141 }
1142
1143 static void
uplcom_poll(struct ucom_softc * ucom)1144 uplcom_poll(struct ucom_softc *ucom)
1145 {
1146 struct uplcom_softc *sc = ucom->sc_parent;
1147 usbd_transfer_poll(sc->sc_xfer, UPLCOM_N_TRANSFER);
1148 }
1149