xref: /netbsd-src/sys/dev/usb/uplcom.c (revision 6deb2c22d20de1d75d538e8a5c57b573926fd157)
1 /*	$NetBSD: uplcom.c,v 1.68 2009/09/23 19:07:19 plunky Exp $	*/
2 /*
3  * Copyright (c) 2001 The NetBSD Foundation, Inc.
4  * All rights reserved.
5  *
6  * This code is derived from software contributed to The NetBSD Foundation
7  * by Ichiro FUKUHARA (ichiro@ichiro.org).
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 NETBSD FOUNDATION, INC. AND CONTRIBUTORS
19  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
20  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
21  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
22  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28  * POSSIBILITY OF SUCH DAMAGE.
29  */
30 
31 /*
32  * General information: http://www.prolific.com.tw/fr_pl2303.htm
33  * http://www.hitachi-hitec.com/jyouhou/prolific/2303.pdf
34  */
35 
36 #include <sys/cdefs.h>
37 __KERNEL_RCSID(0, "$NetBSD: uplcom.c,v 1.68 2009/09/23 19:07:19 plunky Exp $");
38 
39 #include <sys/param.h>
40 #include <sys/systm.h>
41 #include <sys/kernel.h>
42 #include <sys/malloc.h>
43 #include <sys/ioctl.h>
44 #include <sys/conf.h>
45 #include <sys/tty.h>
46 #include <sys/file.h>
47 #include <sys/select.h>
48 #include <sys/proc.h>
49 #include <sys/device.h>
50 #include <sys/poll.h>
51 
52 #include <dev/usb/usb.h>
53 #include <dev/usb/usbcdc.h>
54 
55 #include <dev/usb/usbdi.h>
56 #include <dev/usb/usbdi_util.h>
57 #include <dev/usb/usbdevs.h>
58 #include <dev/usb/usb_quirks.h>
59 
60 #include <dev/usb/ucomvar.h>
61 
62 #ifdef UPLCOM_DEBUG
63 #define DPRINTFN(n, x)  if (uplcomdebug > (n)) logprintf x
64 int	uplcomdebug = 0;
65 #else
66 #define DPRINTFN(n, x)
67 #endif
68 #define DPRINTF(x) DPRINTFN(0, x)
69 
70 #define	UPLCOM_CONFIG_INDEX	0
71 #define	UPLCOM_IFACE_INDEX	0
72 #define	UPLCOM_SECOND_IFACE_INDEX	1
73 
74 #define	UPLCOM_SET_REQUEST	0x01
75 #define	UPLCOM_SET_CRTSCTS_0	0x41
76 #define	UPLCOM_SET_CRTSCTS_HX	0x61
77 #define RSAQ_STATUS_DSR		0x02
78 #define RSAQ_STATUS_DCD		0x01
79 
80 enum  pl2303_type {
81 	UPLCOM_TYPE_0,	/* we use this for all non-HX variants */
82 	UPLCOM_TYPE_HX,
83 };
84 
85 struct	uplcom_softc {
86 	USBBASEDEVICE		sc_dev;		/* base device */
87 	usbd_device_handle	sc_udev;	/* USB device */
88 	usbd_interface_handle	sc_iface;	/* interface */
89 	int			sc_iface_number;	/* interface number */
90 
91 	usbd_interface_handle	sc_intr_iface;	/* interrupt interface */
92 	int			sc_intr_number;	/* interrupt number */
93 	usbd_pipe_handle	sc_intr_pipe;	/* interrupt pipe */
94 	u_char			*sc_intr_buf;	/* interrupt buffer */
95 	int			sc_isize;
96 
97 	usb_cdc_line_state_t	sc_line_state;	/* current line state */
98 	int			sc_dtr;		/* current DTR state */
99 	int			sc_rts;		/* current RTS state */
100 
101 	device_ptr_t		sc_subdev;	/* ucom device */
102 
103 	u_char			sc_dying;	/* disconnecting */
104 
105 	u_char			sc_lsr;		/* Local status register */
106 	u_char			sc_msr;		/* uplcom status register */
107 
108 	enum pl2303_type	sc_type;	/* PL2303 chip type */
109 };
110 
111 /*
112  * These are the maximum number of bytes transferred per frame.
113  * The output buffer size cannot be increased due to the size encoding.
114  */
115 #define UPLCOMIBUFSIZE 256
116 #define UPLCOMOBUFSIZE 256
117 
118 Static	usbd_status uplcom_reset(struct uplcom_softc *);
119 Static	usbd_status uplcom_set_line_coding(struct uplcom_softc *sc,
120 					   usb_cdc_line_state_t *state);
121 Static	usbd_status uplcom_set_crtscts(struct uplcom_softc *);
122 Static	void uplcom_intr(usbd_xfer_handle, usbd_private_handle, usbd_status);
123 
124 Static	void uplcom_set(void *, int, int, int);
125 Static	void uplcom_dtr(struct uplcom_softc *, int);
126 Static	void uplcom_rts(struct uplcom_softc *, int);
127 Static	void uplcom_break(struct uplcom_softc *, int);
128 Static	void uplcom_set_line_state(struct uplcom_softc *);
129 Static	void uplcom_get_status(void *, int portno, u_char *lsr, u_char *msr);
130 #if TODO
131 Static	int  uplcom_ioctl(void *, int, u_long, void *, int, usb_proc_ptr );
132 #endif
133 Static	int  uplcom_param(void *, int, struct termios *);
134 Static	int  uplcom_open(void *, int);
135 Static	void uplcom_close(void *, int);
136 Static usbd_status uplcom_vendor_control_write(usbd_device_handle, u_int16_t, u_int16_t);
137 
138 struct	ucom_methods uplcom_methods = {
139 	uplcom_get_status,
140 	uplcom_set,
141 	uplcom_param,
142 	NULL, /* uplcom_ioctl, TODO */
143 	uplcom_open,
144 	uplcom_close,
145 	NULL,
146 	NULL,
147 };
148 
149 static const struct usb_devno uplcom_devs[] = {
150 	/* I/O DATA USB-RSAQ2 */
151 	{ USB_VENDOR_PROLIFIC, USB_PRODUCT_PROLIFIC_RSAQ2 },
152 	/* I/O DATA USB-RSAQ3 */
153 	{ USB_VENDOR_PROLIFIC, USB_PRODUCT_PROLIFIC_RSAQ3 },
154 	/* I/O DATA USB-RSAQ */
155 	{ USB_VENDOR_IODATA, USB_PRODUCT_IODATA_USBRSAQ },
156 	/* I/O DATA USB-RSAQ5 */
157 	{ USB_VENDOR_IODATA, USB_PRODUCT_IODATA_USBRSAQ5 },
158 	/* PLANEX USB-RS232 URS-03 */
159 	{ USB_VENDOR_ATEN, USB_PRODUCT_ATEN_UC232A },
160 	/* various */
161 	{ USB_VENDOR_PROLIFIC, USB_PRODUCT_PROLIFIC_PL2303 },
162 	/* SMART Technologies USB to serial */
163 	{ USB_VENDOR_PROLIFIC2, USB_PRODUCT_PROLIFIC2_PL2303 },
164 	/* IOGEAR/ATENTRIPPLITE */
165 	{ USB_VENDOR_TRIPPLITE, USB_PRODUCT_TRIPPLITE_U209 },
166 	/* ELECOM UC-SGT */
167 	{ USB_VENDOR_ELECOM, USB_PRODUCT_ELECOM_UCSGT },
168 	/* ELECOM UC-SGT0 */
169 	{ USB_VENDOR_ELECOM, USB_PRODUCT_ELECOM_UCSGT0 },
170 	/* Panasonic 50" Touch Panel */
171 	{ USB_VENDOR_PANASONIC, USB_PRODUCT_PANASONIC_TYTP50P6S },
172 	/* RATOC REX-USB60 */
173 	{ USB_VENDOR_RATOC, USB_PRODUCT_RATOC_REXUSB60 },
174 	/* TDK USB-PHS Adapter UHA6400 */
175 	{ USB_VENDOR_TDK, USB_PRODUCT_TDK_UHA6400 },
176 	/* TDK USB-PDC Adapter UPA9664 */
177 	{ USB_VENDOR_TDK, USB_PRODUCT_TDK_UPA9664 },
178 	/* Sony Ericsson USB Cable */
179 	{ USB_VENDOR_SUSTEEN, USB_PRODUCT_SUSTEEN_DCU10 },
180 	/* SOURCENEXT KeikaiDenwa 8 */
181 	{ USB_VENDOR_SOURCENEXT, USB_PRODUCT_SOURCENEXT_KEIKAI8 },
182 	/* SOURCENEXT KeikaiDenwa 8 with charger */
183 	{ USB_VENDOR_SOURCENEXT, USB_PRODUCT_SOURCENEXT_KEIKAI8_CHG },
184 	/* HAL Corporation Crossam2+USB */
185 	{ USB_VENDOR_HAL, USB_PRODUCT_HAL_IMR001 },
186 	/* Sitecom USB to serial cable */
187 	{ USB_VENDOR_SITECOM, USB_PRODUCT_SITECOM_CN104 },
188 	/* Pharos USB GPS - Microsoft version */
189 	{ USB_VENDOR_PROLIFIC, USB_PRODUCT_PROLIFIC_PL2303X },
190 	/* Willcom WS002IN (DD) */
191 	{ USB_VENDOR_NETINDEX, USB_PRODUCT_NETINDEX_WS002IN },
192 	/* COREGA CG-USBRS232R */
193 	{ USB_VENDOR_COREGA, USB_PRODUCT_COREGA_CGUSBRS232R },
194 };
195 #define uplcom_lookup(v, p) usb_lookup(uplcom_devs, v, p)
196 
197 int uplcom_match(device_t, cfdata_t, void *);
198 void uplcom_attach(device_t, device_t, void *);
199 void uplcom_childdet(device_t, device_t);
200 int uplcom_detach(device_t, int);
201 int uplcom_activate(device_t, enum devact);
202 extern struct cfdriver uplcom_cd;
203 CFATTACH_DECL2_NEW(uplcom, sizeof(struct uplcom_softc), uplcom_match,
204     uplcom_attach, uplcom_detach, uplcom_activate, NULL, uplcom_childdet);
205 
206 USB_MATCH(uplcom)
207 {
208 	USB_MATCH_START(uplcom, uaa);
209 
210 	return (uplcom_lookup(uaa->vendor, uaa->product) != NULL ?
211 		UMATCH_VENDOR_PRODUCT : UMATCH_NONE);
212 }
213 
214 USB_ATTACH(uplcom)
215 {
216 	USB_ATTACH_START(uplcom, sc, uaa);
217 	usbd_device_handle dev = uaa->device;
218 	usb_device_descriptor_t *ddesc;
219 	usb_config_descriptor_t *cdesc;
220 	usb_interface_descriptor_t *id;
221 	usb_endpoint_descriptor_t *ed;
222 	char *devinfop;
223 	const char *devname = device_xname(self);
224 	usbd_status err;
225 	int i;
226 	struct ucom_attach_args uca;
227 
228 	sc->sc_dev = self;
229 
230 	aprint_naive("\n");
231 	aprint_normal("\n");
232 
233 	devinfop = usbd_devinfo_alloc(dev, 0);
234 	aprint_normal_dev(self, "%s\n", devinfop);
235 	usbd_devinfo_free(devinfop);
236 
237         sc->sc_udev = dev;
238 
239 	DPRINTF(("\n\nuplcom attach: sc=%p\n", sc));
240 
241 	/* initialize endpoints */
242 	uca.bulkin = uca.bulkout = -1;
243 	sc->sc_intr_number = -1;
244 	sc->sc_intr_pipe = NULL;
245 
246 	/* Move the device into the configured state. */
247 	err = usbd_set_config_index(dev, UPLCOM_CONFIG_INDEX, 1);
248 	if (err) {
249 		aprint_error("\n%s: failed to set configuration, err=%s\n",
250 			devname, usbd_errstr(err));
251 		sc->sc_dying = 1;
252 		USB_ATTACH_ERROR_RETURN;
253 	}
254 
255 	/* determine chip type */
256 	ddesc = usbd_get_device_descriptor(dev);
257 	if (ddesc->bDeviceClass != UDCLASS_COMM &&
258 	    ddesc->bMaxPacketSize == 0x40)
259 		sc->sc_type = UPLCOM_TYPE_HX;
260 
261 #ifdef UPLCOM_DEBUG
262 	/* print the chip type */
263 	if (sc->sc_type == UPLCOM_TYPE_HX) {
264 		DPRINTF(("uplcom_attach: chiptype HX\n"));
265 	} else {
266 		DPRINTF(("uplcom_attach: chiptype 0\n"));
267 	}
268 #endif
269 
270 	/* Move the device into the configured state. */
271 	err = usbd_set_config_index(dev, UPLCOM_CONFIG_INDEX, 1);
272 	if (err) {
273 		aprint_error_dev(self, "failed to set configuration: %s\n",
274 		    usbd_errstr(err));
275 		sc->sc_dying = 1;
276 		USB_ATTACH_ERROR_RETURN;
277 	}
278 
279 	/* get the config descriptor */
280 	cdesc = usbd_get_config_descriptor(sc->sc_udev);
281 
282 	if (cdesc == NULL) {
283 		aprint_error_dev(self,
284 		    "failed to get configuration descriptor\n");
285 		sc->sc_dying = 1;
286 		USB_ATTACH_ERROR_RETURN;
287 	}
288 
289 	/* get the (first/common) interface */
290 	err = usbd_device2interface_handle(dev, UPLCOM_IFACE_INDEX,
291 							&sc->sc_iface);
292 	if (err) {
293 		aprint_error("\n%s: failed to get interface, err=%s\n",
294 			devname, usbd_errstr(err));
295 		sc->sc_dying = 1;
296 		USB_ATTACH_ERROR_RETURN;
297 	}
298 
299 	/* Find the interrupt endpoints */
300 
301 	id = usbd_get_interface_descriptor(sc->sc_iface);
302 	sc->sc_iface_number = id->bInterfaceNumber;
303 
304 	for (i = 0; i < id->bNumEndpoints; i++) {
305 		ed = usbd_interface2endpoint_descriptor(sc->sc_iface, i);
306 		if (ed == NULL) {
307 			aprint_error_dev(self,
308 			    "no endpoint descriptor for %d\n", i);
309 			sc->sc_dying = 1;
310 			USB_ATTACH_ERROR_RETURN;
311 		}
312 
313 		if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
314 		    UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) {
315 			sc->sc_intr_number = ed->bEndpointAddress;
316 			sc->sc_isize = UGETW(ed->wMaxPacketSize);
317 		}
318 	}
319 
320 	if (sc->sc_intr_number== -1) {
321 		aprint_error_dev(self, "Could not find interrupt in\n");
322 		sc->sc_dying = 1;
323 		USB_ATTACH_ERROR_RETURN;
324 	}
325 
326 	/* keep interface for interrupt */
327 	sc->sc_intr_iface = sc->sc_iface;
328 
329 	/*
330 	 * USB-RSAQ1 has two interface
331 	 *
332 	 *  USB-RSAQ1       | USB-RSAQ2
333  	 * -----------------+-----------------
334 	 * Interface 0      |Interface 0
335 	 *  Interrupt(0x81) | Interrupt(0x81)
336 	 * -----------------+ BulkIN(0x02)
337 	 * Interface 1	    | BulkOUT(0x83)
338 	 *   BulkIN(0x02)   |
339 	 *   BulkOUT(0x83)  |
340 	 */
341 	if (cdesc->bNumInterface == 2) {
342 		err = usbd_device2interface_handle(dev,
343 				UPLCOM_SECOND_IFACE_INDEX, &sc->sc_iface);
344 		if (err) {
345 			aprint_error("\n%s: failed to get second interface, err=%s\n",
346 							devname, usbd_errstr(err));
347 			sc->sc_dying = 1;
348 			USB_ATTACH_ERROR_RETURN;
349 		}
350 	}
351 
352 	/* Find the bulk{in,out} endpoints */
353 
354 	id = usbd_get_interface_descriptor(sc->sc_iface);
355 	sc->sc_iface_number = id->bInterfaceNumber;
356 
357 	for (i = 0; i < id->bNumEndpoints; i++) {
358 		ed = usbd_interface2endpoint_descriptor(sc->sc_iface, i);
359 		if (ed == NULL) {
360 			aprint_error_dev(self,
361 			    "no endpoint descriptor for %d\n", i);
362 			sc->sc_dying = 1;
363 			USB_ATTACH_ERROR_RETURN;
364 		}
365 
366 		if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
367 		    UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
368 			uca.bulkin = ed->bEndpointAddress;
369 		} else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
370 		    UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
371 			uca.bulkout = ed->bEndpointAddress;
372 		}
373 	}
374 
375 	if (uca.bulkin == -1) {
376 		aprint_error_dev(self, "Could not find data bulk in\n");
377 		sc->sc_dying = 1;
378 		USB_ATTACH_ERROR_RETURN;
379 	}
380 
381 	if (uca.bulkout == -1) {
382 		aprint_error_dev(self, "Could not find data bulk out\n");
383 		sc->sc_dying = 1;
384 		USB_ATTACH_ERROR_RETURN;
385 	}
386 
387 	sc->sc_dtr = sc->sc_rts = -1;
388 	uca.portno = UCOM_UNK_PORTNO;
389 	/* bulkin, bulkout set above */
390 	uca.ibufsize = UPLCOMIBUFSIZE;
391 	uca.obufsize = UPLCOMOBUFSIZE;
392 	uca.ibufsizepad = UPLCOMIBUFSIZE;
393 	uca.opkthdrlen = 0;
394 	uca.device = dev;
395 	uca.iface = sc->sc_iface;
396 	uca.methods = &uplcom_methods;
397 	uca.arg = sc;
398 	uca.info = NULL;
399 
400 	err = uplcom_reset(sc);
401 
402 	if (err) {
403 		aprint_error_dev(self, "reset failed, %s\n", usbd_errstr(err));
404 		sc->sc_dying = 1;
405 		USB_ATTACH_ERROR_RETURN;
406 	}
407 
408 	usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev,
409 			   USBDEV(sc->sc_dev));
410 
411 	DPRINTF(("uplcom: in=0x%x out=0x%x intr=0x%x\n",
412 			uca.bulkin, uca.bulkout, sc->sc_intr_number ));
413 	sc->sc_subdev = config_found_sm_loc(self, "ucombus", NULL, &uca,
414 					    ucomprint, ucomsubmatch);
415 
416 	USB_ATTACH_SUCCESS_RETURN;
417 }
418 
419 void
420 uplcom_childdet(device_t self, device_t child)
421 {
422 	struct uplcom_softc *sc = device_private(self);
423 
424 	KASSERT(sc->sc_subdev == child);
425 	sc->sc_subdev = NULL;
426 }
427 
428 USB_DETACH(uplcom)
429 {
430 	USB_DETACH_START(uplcom, sc);
431 	int rv = 0;
432 
433 	DPRINTF(("uplcom_detach: sc=%p flags=%d\n", sc, flags));
434 
435         if (sc->sc_intr_pipe != NULL) {
436                 usbd_abort_pipe(sc->sc_intr_pipe);
437                 usbd_close_pipe(sc->sc_intr_pipe);
438 		free(sc->sc_intr_buf, M_USBDEV);
439                 sc->sc_intr_pipe = NULL;
440         }
441 
442 	sc->sc_dying = 1;
443 	if (sc->sc_subdev != NULL)
444 		rv = config_detach(sc->sc_subdev, flags);
445 
446 	usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev,
447 			   USBDEV(sc->sc_dev));
448 
449 	return (rv);
450 }
451 
452 int
453 uplcom_activate(device_t self, enum devact act)
454 {
455 	struct uplcom_softc *sc = device_private(self);
456 	int rv = 0;
457 
458 	switch (act) {
459 	case DVACT_ACTIVATE:
460 		return (EOPNOTSUPP);
461 
462 	case DVACT_DEACTIVATE:
463 		if (sc->sc_subdev != NULL)
464 			rv = config_deactivate(sc->sc_subdev);
465 		sc->sc_dying = 1;
466 		break;
467 	}
468 	return (rv);
469 }
470 
471 usbd_status
472 uplcom_reset(struct uplcom_softc *sc)
473 {
474 	usb_device_request_t req;
475 	usbd_status err;
476 
477         req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
478         req.bRequest = UPLCOM_SET_REQUEST;
479         USETW(req.wValue, 0);
480         USETW(req.wIndex, sc->sc_iface_number);
481         USETW(req.wLength, 0);
482 
483         err = usbd_do_request(sc->sc_udev, &req, 0);
484 	if (err)
485 		return (EIO);
486 
487 	return (0);
488 }
489 
490 struct pl2303x_init {
491 	uint8_t		req_type;
492 	uint8_t		request;
493 	uint16_t	value;
494 	uint16_t	index;
495 	uint16_t	length;
496 };
497 
498 static const struct pl2303x_init pl2303x[] = {
499 	{ UT_READ_VENDOR_DEVICE,  UPLCOM_SET_REQUEST, 0x8484,    0, 0 },
500 	{ UT_WRITE_VENDOR_DEVICE, UPLCOM_SET_REQUEST, 0x0404,    0, 0 },
501 	{ UT_READ_VENDOR_DEVICE,  UPLCOM_SET_REQUEST, 0x8484,    0, 0 },
502 	{ UT_READ_VENDOR_DEVICE,  UPLCOM_SET_REQUEST, 0x8383,    0, 0 },
503 	{ UT_READ_VENDOR_DEVICE,  UPLCOM_SET_REQUEST, 0x8484,    0, 0 },
504 	{ UT_WRITE_VENDOR_DEVICE, UPLCOM_SET_REQUEST, 0x0404,    1, 0 },
505 	{ UT_READ_VENDOR_DEVICE,  UPLCOM_SET_REQUEST, 0x8484,    0, 0 },
506 	{ UT_READ_VENDOR_DEVICE,  UPLCOM_SET_REQUEST, 0x8383,    0, 0 },
507 	{ UT_WRITE_VENDOR_DEVICE, UPLCOM_SET_REQUEST,      0,    1, 0 },
508 	{ UT_WRITE_VENDOR_DEVICE, UPLCOM_SET_REQUEST,      1,    0, 0 },
509 	{ UT_WRITE_VENDOR_DEVICE, UPLCOM_SET_REQUEST,      2, 0x44, 0 }
510 };
511 #define N_PL2302X_INIT  (sizeof(pl2303x)/sizeof(pl2303x[0]))
512 
513 static usbd_status
514 uplcom_pl2303x_init(struct uplcom_softc *sc)
515 {
516 	usb_device_request_t req;
517 	usbd_status err;
518 	int i;
519 
520 	for (i = 0; i < N_PL2302X_INIT; i++) {
521 		req.bmRequestType = pl2303x[i].req_type;
522 		req.bRequest = pl2303x[i].request;
523 		USETW(req.wValue, pl2303x[i].value);
524 		USETW(req.wIndex, pl2303x[i].index);
525 		USETW(req.wLength, pl2303x[i].length);
526 
527 		err = usbd_do_request(sc->sc_udev, &req, 0);
528 		if (err) {
529 			aprint_error_dev(sc->sc_dev,
530 			    "uplcom_pl2303x_init failed: %s\n",
531 			    usbd_errstr(err));
532 			return (EIO);
533 		}
534 	}
535 
536 	return (0);
537 }
538 
539 void
540 uplcom_set_line_state(struct uplcom_softc *sc)
541 {
542 	usb_device_request_t req;
543 	int ls;
544 
545 	/* make sure we have initialized state for sc_dtr and sc_rts */
546 	if (sc->sc_dtr == -1)
547 		sc->sc_dtr = 0;
548 	if (sc->sc_rts == -1)
549 		sc->sc_rts = 0;
550 
551 	ls = (sc->sc_dtr ? UCDC_LINE_DTR : 0) |
552 		(sc->sc_rts ? UCDC_LINE_RTS : 0);
553 
554 	req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
555 	req.bRequest = UCDC_SET_CONTROL_LINE_STATE;
556 	USETW(req.wValue, ls);
557 	USETW(req.wIndex, sc->sc_iface_number);
558 	USETW(req.wLength, 0);
559 
560 	(void)usbd_do_request(sc->sc_udev, &req, 0);
561 }
562 
563 void
564 uplcom_set(void *addr, int portno, int reg, int onoff)
565 {
566 	struct uplcom_softc *sc = addr;
567 
568 	switch (reg) {
569 	case UCOM_SET_DTR:
570 		uplcom_dtr(sc, onoff);
571 		break;
572 	case UCOM_SET_RTS:
573 		uplcom_rts(sc, onoff);
574 		break;
575 	case UCOM_SET_BREAK:
576 		uplcom_break(sc, onoff);
577 		break;
578 	default:
579 		break;
580 	}
581 }
582 
583 void
584 uplcom_dtr(struct uplcom_softc *sc, int onoff)
585 {
586 
587 	DPRINTF(("uplcom_dtr: onoff=%d\n", onoff));
588 
589 	if (sc->sc_dtr != -1 && !sc->sc_dtr == !onoff)
590 		return;
591 
592 	sc->sc_dtr = !!onoff;
593 
594 	uplcom_set_line_state(sc);
595 }
596 
597 void
598 uplcom_rts(struct uplcom_softc *sc, int onoff)
599 {
600 	DPRINTF(("uplcom_rts: onoff=%d\n", onoff));
601 
602 	if (sc->sc_rts != -1 && !sc->sc_rts == !onoff)
603 		return;
604 
605 	sc->sc_rts = !!onoff;
606 
607 	uplcom_set_line_state(sc);
608 }
609 
610 void
611 uplcom_break(struct uplcom_softc *sc, int onoff)
612 {
613 	usb_device_request_t req;
614 
615 	DPRINTF(("uplcom_break: onoff=%d\n", onoff));
616 
617 	req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
618 	req.bRequest = UCDC_SEND_BREAK;
619 	USETW(req.wValue, onoff ? UCDC_BREAK_ON : UCDC_BREAK_OFF);
620 	USETW(req.wIndex, sc->sc_iface_number);
621 	USETW(req.wLength, 0);
622 
623 	(void)usbd_do_request(sc->sc_udev, &req, 0);
624 }
625 
626 usbd_status
627 uplcom_set_crtscts(struct uplcom_softc *sc)
628 {
629 	usb_device_request_t req;
630 	usbd_status err;
631 
632 	DPRINTF(("uplcom_set_crtscts: on\n"));
633 
634 	req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
635 	req.bRequest = UPLCOM_SET_REQUEST;
636 	USETW(req.wValue, 0);
637 	if (sc->sc_type == UPLCOM_TYPE_HX)
638 		USETW(req.wIndex, UPLCOM_SET_CRTSCTS_HX);
639 	else
640 		USETW(req.wIndex, UPLCOM_SET_CRTSCTS_0);
641 	USETW(req.wLength, 0);
642 
643 	err = usbd_do_request(sc->sc_udev, &req, 0);
644 	if (err) {
645 		DPRINTF(("uplcom_set_crtscts: failed, err=%s\n",
646 			usbd_errstr(err)));
647 		return (err);
648 	}
649 
650 	return (USBD_NORMAL_COMPLETION);
651 }
652 
653 usbd_status
654 uplcom_set_line_coding(struct uplcom_softc *sc, usb_cdc_line_state_t *state)
655 {
656 	usb_device_request_t req;
657 	usbd_status err;
658 
659 	DPRINTF(("uplcom_set_line_coding: rate=%d fmt=%d parity=%d bits=%d\n",
660 		UGETDW(state->dwDTERate), state->bCharFormat,
661 		state->bParityType, state->bDataBits));
662 
663 	if (memcmp(state, &sc->sc_line_state, UCDC_LINE_STATE_LENGTH) == 0) {
664 		DPRINTF(("uplcom_set_line_coding: already set\n"));
665 		return (USBD_NORMAL_COMPLETION);
666 	}
667 
668 	req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
669 	req.bRequest = UCDC_SET_LINE_CODING;
670 	USETW(req.wValue, 0);
671 	USETW(req.wIndex, sc->sc_iface_number);
672 	USETW(req.wLength, UCDC_LINE_STATE_LENGTH);
673 
674 	err = usbd_do_request(sc->sc_udev, &req, state);
675 	if (err) {
676 		DPRINTF(("uplcom_set_line_coding: failed, err=%s\n",
677 			usbd_errstr(err)));
678 		return (err);
679 	}
680 
681 	sc->sc_line_state = *state;
682 
683 	return (USBD_NORMAL_COMPLETION);
684 }
685 
686 int
687 uplcom_param(void *addr, int portno, struct termios *t)
688 {
689 	struct uplcom_softc *sc = addr;
690 	usbd_status err;
691 	usb_cdc_line_state_t ls;
692 
693 	DPRINTF(("uplcom_param: sc=%p\n", sc));
694 
695 	USETDW(ls.dwDTERate, t->c_ospeed);
696 	if (ISSET(t->c_cflag, CSTOPB))
697 		ls.bCharFormat = UCDC_STOP_BIT_2;
698 	else
699 		ls.bCharFormat = UCDC_STOP_BIT_1;
700 	if (ISSET(t->c_cflag, PARENB)) {
701 		if (ISSET(t->c_cflag, PARODD))
702 			ls.bParityType = UCDC_PARITY_ODD;
703 		else
704 			ls.bParityType = UCDC_PARITY_EVEN;
705 	} else
706 		ls.bParityType = UCDC_PARITY_NONE;
707 	switch (ISSET(t->c_cflag, CSIZE)) {
708 	case CS5:
709 		ls.bDataBits = 5;
710 		break;
711 	case CS6:
712 		ls.bDataBits = 6;
713 		break;
714 	case CS7:
715 		ls.bDataBits = 7;
716 		break;
717 	case CS8:
718 		ls.bDataBits = 8;
719 		break;
720 	}
721 
722 	err = uplcom_set_line_coding(sc, &ls);
723 	if (err) {
724 		DPRINTF(("uplcom_param: err=%s\n", usbd_errstr(err)));
725 		return (EIO);
726 	}
727 
728 	if (ISSET(t->c_cflag, CRTSCTS))
729 		uplcom_set_crtscts(sc);
730 
731 	if (sc->sc_rts == -1 || sc->sc_dtr == -1)
732 		uplcom_set_line_state(sc);
733 
734 	if (err) {
735 		DPRINTF(("uplcom_param: err=%s\n", usbd_errstr(err)));
736 		return (EIO);
737 	}
738 
739 	return (0);
740 }
741 
742 Static usbd_status
743 uplcom_vendor_control_write(usbd_device_handle dev, u_int16_t value, u_int16_t index)
744 {
745 	usb_device_request_t req;
746 	usbd_status err;
747 
748 	req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
749 	req.bRequest = UPLCOM_SET_REQUEST;
750 	USETW(req.wValue, value);
751 	USETW(req.wIndex, index);
752 	USETW(req.wLength, 0);
753 
754 	err = usbd_do_request(dev, &req, NULL);
755 
756 	if (err) {
757 		DPRINTF(("uplcom_open: vendor write failed, err=%s (%d)\n",
758 			    usbd_errstr(err), err));
759 	}
760 
761 	return err;
762 }
763 
764 int
765 uplcom_open(void *addr, int portno)
766 {
767 	struct uplcom_softc *sc = addr;
768 	usbd_status err;
769 
770 	if (sc->sc_dying)
771 		return (EIO);
772 
773 	DPRINTF(("uplcom_open: sc=%p\n", sc));
774 
775 	/* Some unknown device frobbing. */
776 	if (sc->sc_type == UPLCOM_TYPE_HX)
777 		uplcom_vendor_control_write(sc->sc_udev, 2, 0x44);
778 	else
779 		uplcom_vendor_control_write(sc->sc_udev, 2, 0x24);
780 
781 	if (sc->sc_intr_number != -1 && sc->sc_intr_pipe == NULL) {
782 		sc->sc_intr_buf = malloc(sc->sc_isize, M_USBDEV, M_WAITOK);
783 		err = usbd_open_pipe_intr(sc->sc_intr_iface, sc->sc_intr_number,
784 			USBD_SHORT_XFER_OK, &sc->sc_intr_pipe, sc,
785 			sc->sc_intr_buf, sc->sc_isize,
786 			uplcom_intr, USBD_DEFAULT_INTERVAL);
787 		if (err) {
788 			DPRINTF(("%s: cannot open interrupt pipe (addr %d)\n",
789 				USBDEVNAME(sc->sc_dev), sc->sc_intr_number));
790 					return (EIO);
791 		}
792 	}
793 
794 	if (sc->sc_type == UPLCOM_TYPE_HX)
795 		return (uplcom_pl2303x_init(sc));
796 
797 	return (0);
798 }
799 
800 void
801 uplcom_close(void *addr, int portno)
802 {
803 	struct uplcom_softc *sc = addr;
804 	int err;
805 
806 	if (sc->sc_dying)
807 		return;
808 
809 	DPRINTF(("uplcom_close: close\n"));
810 
811 	if (sc->sc_intr_pipe != NULL) {
812 		err = usbd_abort_pipe(sc->sc_intr_pipe);
813 		if (err)
814 			printf("%s: abort interrupt pipe failed: %s\n",
815 				USBDEVNAME(sc->sc_dev), usbd_errstr(err));
816 		err = usbd_close_pipe(sc->sc_intr_pipe);
817 		if (err)
818 			printf("%s: close interrupt pipe failed: %s\n",
819 				USBDEVNAME(sc->sc_dev), usbd_errstr(err));
820 		free(sc->sc_intr_buf, M_USBDEV);
821 		sc->sc_intr_pipe = NULL;
822 	}
823 }
824 
825 void
826 uplcom_intr(usbd_xfer_handle xfer, usbd_private_handle priv,
827     usbd_status status)
828 {
829 	struct uplcom_softc *sc = priv;
830 	u_char *buf = sc->sc_intr_buf;
831 	u_char pstatus;
832 
833 	if (sc->sc_dying)
834 		return;
835 
836 	if (status != USBD_NORMAL_COMPLETION) {
837 		if (status == USBD_NOT_STARTED || status == USBD_CANCELLED)
838 			return;
839 
840 		DPRINTF(("%s: abnormal status: %s\n", USBDEVNAME(sc->sc_dev),
841 			usbd_errstr(status)));
842 		usbd_clear_endpoint_stall_async(sc->sc_intr_pipe);
843 		return;
844 	}
845 
846 	DPRINTF(("%s: uplcom status = %02x\n", USBDEVNAME(sc->sc_dev), buf[8]));
847 
848 	sc->sc_lsr = sc->sc_msr = 0;
849 	pstatus = buf[8];
850 	if (ISSET(pstatus, RSAQ_STATUS_DSR))
851 		sc->sc_msr |= UMSR_DSR;
852 	if (ISSET(pstatus, RSAQ_STATUS_DCD))
853 		sc->sc_msr |= UMSR_DCD;
854 	ucom_status_change(device_private(sc->sc_subdev));
855 }
856 
857 void
858 uplcom_get_status(void *addr, int portno, u_char *lsr, u_char *msr)
859 {
860 	struct uplcom_softc *sc = addr;
861 
862 	DPRINTF(("uplcom_get_status:\n"));
863 
864 	if (lsr != NULL)
865 		*lsr = sc->sc_lsr;
866 	if (msr != NULL)
867 		*msr = sc->sc_msr;
868 }
869 
870 #if TODO
871 int
872 uplcom_ioctl(void *addr, int portno, u_long cmd, void *data, int flag,
873 	     usb_proc_ptr p)
874 {
875 	struct uplcom_softc *sc = addr;
876 	int error = 0;
877 
878 	if (sc->sc_dying)
879 		return (EIO);
880 
881 	DPRINTF(("uplcom_ioctl: cmd=0x%08lx\n", cmd));
882 
883 	switch (cmd) {
884 	case TIOCNOTTY:
885 	case TIOCMGET:
886 	case TIOCMSET:
887 	case USB_GET_CM_OVER_DATA:
888 	case USB_SET_CM_OVER_DATA:
889 		break;
890 
891 	default:
892 		DPRINTF(("uplcom_ioctl: unknown\n"));
893 		error = ENOTTY;
894 		break;
895 	}
896 
897 	return (error);
898 }
899 #endif
900