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