xref: /freebsd/sys/dev/usb/serial/uvscom.c (revision ca48e43ba9ee73a07cdbad8365117793b01273bb)
1 /*	$NetBSD: usb/uvscom.c,v 1.1 2002/03/19 15:08:42 augustss 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 /*
33  * uvscom: SUNTAC Slipper U VS-10U driver.
34  * Slipper U is a PC Card to USB converter for data communication card
35  * adapter.  It supports DDI Pocket's Air H" C@rd, C@rd H" 64, NTT's P-in,
36  * P-in m@ater and various data communication card adapters.
37  */
38 
39 #include <sys/stdint.h>
40 #include <sys/stddef.h>
41 #include <sys/param.h>
42 #include <sys/queue.h>
43 #include <sys/types.h>
44 #include <sys/systm.h>
45 #include <sys/kernel.h>
46 #include <sys/bus.h>
47 #include <sys/module.h>
48 #include <sys/lock.h>
49 #include <sys/mutex.h>
50 #include <sys/condvar.h>
51 #include <sys/sysctl.h>
52 #include <sys/sx.h>
53 #include <sys/unistd.h>
54 #include <sys/callout.h>
55 #include <sys/malloc.h>
56 #include <sys/priv.h>
57 
58 #include <dev/usb/usb.h>
59 #include <dev/usb/usbdi.h>
60 #include <dev/usb/usbdi_util.h>
61 #include "usbdevs.h"
62 
63 #define	USB_DEBUG_VAR uvscom_debug
64 #include <dev/usb/usb_debug.h>
65 #include <dev/usb/usb_process.h>
66 
67 #include <dev/usb/serial/usb_serial.h>
68 
69 #ifdef USB_DEBUG
70 static int uvscom_debug = 0;
71 
72 static SYSCTL_NODE(_hw_usb, OID_AUTO, uvscom, CTLFLAG_RW | CTLFLAG_MPSAFE, 0,
73     "USB uvscom");
74 SYSCTL_INT(_hw_usb_uvscom, OID_AUTO, debug, CTLFLAG_RWTUN,
75     &uvscom_debug, 0, "Debug level");
76 #endif
77 
78 #define	UVSCOM_MODVER		1	/* module version */
79 
80 #define	UVSCOM_CONFIG_INDEX	0
81 #define	UVSCOM_IFACE_INDEX	0
82 
83 /* Request */
84 #define	UVSCOM_SET_SPEED	0x10
85 #define	UVSCOM_LINE_CTL		0x11
86 #define	UVSCOM_SET_PARAM	0x12
87 #define	UVSCOM_READ_STATUS	0xd0
88 #define	UVSCOM_SHUTDOWN		0xe0
89 
90 /* UVSCOM_SET_SPEED parameters */
91 #define	UVSCOM_SPEED_150BPS	0x00
92 #define	UVSCOM_SPEED_300BPS	0x01
93 #define	UVSCOM_SPEED_600BPS	0x02
94 #define	UVSCOM_SPEED_1200BPS	0x03
95 #define	UVSCOM_SPEED_2400BPS	0x04
96 #define	UVSCOM_SPEED_4800BPS	0x05
97 #define	UVSCOM_SPEED_9600BPS	0x06
98 #define	UVSCOM_SPEED_19200BPS	0x07
99 #define	UVSCOM_SPEED_38400BPS	0x08
100 #define	UVSCOM_SPEED_57600BPS	0x09
101 #define	UVSCOM_SPEED_115200BPS	0x0a
102 
103 /* UVSCOM_LINE_CTL parameters */
104 #define	UVSCOM_BREAK		0x40
105 #define	UVSCOM_RTS		0x02
106 #define	UVSCOM_DTR		0x01
107 #define	UVSCOM_LINE_INIT	0x08
108 
109 /* UVSCOM_SET_PARAM parameters */
110 #define	UVSCOM_DATA_MASK	0x03
111 #define	UVSCOM_DATA_BIT_8	0x03
112 #define	UVSCOM_DATA_BIT_7	0x02
113 #define	UVSCOM_DATA_BIT_6	0x01
114 #define	UVSCOM_DATA_BIT_5	0x00
115 
116 #define	UVSCOM_STOP_MASK	0x04
117 #define	UVSCOM_STOP_BIT_2	0x04
118 #define	UVSCOM_STOP_BIT_1	0x00
119 
120 #define	UVSCOM_PARITY_MASK	0x18
121 #define	UVSCOM_PARITY_EVEN	0x18
122 #define	UVSCOM_PARITY_ODD	0x08
123 #define	UVSCOM_PARITY_NONE	0x00
124 
125 /* Status bits */
126 #define	UVSCOM_TXRDY		0x04
127 #define	UVSCOM_RXRDY		0x01
128 
129 #define	UVSCOM_DCD		0x08
130 #define	UVSCOM_NOCARD		0x04
131 #define	UVSCOM_DSR		0x02
132 #define	UVSCOM_CTS		0x01
133 #define	UVSCOM_USTAT_MASK	(UVSCOM_NOCARD | UVSCOM_DSR | UVSCOM_CTS)
134 
135 #define	UVSCOM_BULK_BUF_SIZE	1024	/* bytes */
136 
137 enum {
138 	UVSCOM_BULK_DT_WR,
139 	UVSCOM_BULK_DT_RD,
140 	UVSCOM_INTR_DT_RD,
141 	UVSCOM_N_TRANSFER,
142 };
143 
144 struct uvscom_softc {
145 	struct ucom_super_softc sc_super_ucom;
146 	struct ucom_softc sc_ucom;
147 
148 	struct usb_xfer *sc_xfer[UVSCOM_N_TRANSFER];
149 	struct usb_device *sc_udev;
150 	struct mtx sc_mtx;
151 
152 	uint16_t sc_line;		/* line control register */
153 
154 	uint8_t	sc_iface_no;		/* interface number */
155 	uint8_t	sc_iface_index;		/* interface index */
156 	uint8_t	sc_lsr;			/* local status register */
157 	uint8_t	sc_msr;			/* uvscom status register */
158 	uint8_t	sc_unit_status;		/* unit status */
159 };
160 
161 /* prototypes */
162 
163 static device_probe_t uvscom_probe;
164 static device_attach_t uvscom_attach;
165 static device_detach_t uvscom_detach;
166 static void uvscom_free_softc(struct uvscom_softc *);
167 
168 static usb_callback_t uvscom_write_callback;
169 static usb_callback_t uvscom_read_callback;
170 static usb_callback_t uvscom_intr_callback;
171 
172 static void	uvscom_free(struct ucom_softc *);
173 static void	uvscom_cfg_set_dtr(struct ucom_softc *, uint8_t);
174 static void	uvscom_cfg_set_rts(struct ucom_softc *, uint8_t);
175 static void	uvscom_cfg_set_break(struct ucom_softc *, uint8_t);
176 static int	uvscom_pre_param(struct ucom_softc *, struct termios *);
177 static void	uvscom_cfg_param(struct ucom_softc *, struct termios *);
178 static int	uvscom_pre_open(struct ucom_softc *);
179 static void	uvscom_cfg_open(struct ucom_softc *);
180 static void	uvscom_cfg_close(struct ucom_softc *);
181 static void	uvscom_start_read(struct ucom_softc *);
182 static void	uvscom_stop_read(struct ucom_softc *);
183 static void	uvscom_start_write(struct ucom_softc *);
184 static void	uvscom_stop_write(struct ucom_softc *);
185 static void	uvscom_cfg_get_status(struct ucom_softc *, uint8_t *,
186 		    uint8_t *);
187 static void	uvscom_cfg_write(struct uvscom_softc *, uint8_t, uint16_t);
188 static uint16_t	uvscom_cfg_read_status(struct uvscom_softc *);
189 static void	uvscom_poll(struct ucom_softc *ucom);
190 
191 static const struct usb_config uvscom_config[UVSCOM_N_TRANSFER] = {
192 	[UVSCOM_BULK_DT_WR] = {
193 		.type = UE_BULK,
194 		.endpoint = UE_ADDR_ANY,
195 		.direction = UE_DIR_OUT,
196 		.bufsize = UVSCOM_BULK_BUF_SIZE,
197 		.flags = {.pipe_bof = 1,.force_short_xfer = 1,},
198 		.callback = &uvscom_write_callback,
199 	},
200 
201 	[UVSCOM_BULK_DT_RD] = {
202 		.type = UE_BULK,
203 		.endpoint = UE_ADDR_ANY,
204 		.direction = UE_DIR_IN,
205 		.bufsize = UVSCOM_BULK_BUF_SIZE,
206 		.flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
207 		.callback = &uvscom_read_callback,
208 	},
209 
210 	[UVSCOM_INTR_DT_RD] = {
211 		.type = UE_INTERRUPT,
212 		.endpoint = UE_ADDR_ANY,
213 		.direction = UE_DIR_IN,
214 		.flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
215 		.bufsize = 0,	/* use wMaxPacketSize */
216 		.callback = &uvscom_intr_callback,
217 	},
218 };
219 
220 static const struct ucom_callback uvscom_callback = {
221 	.ucom_cfg_get_status = &uvscom_cfg_get_status,
222 	.ucom_cfg_set_dtr = &uvscom_cfg_set_dtr,
223 	.ucom_cfg_set_rts = &uvscom_cfg_set_rts,
224 	.ucom_cfg_set_break = &uvscom_cfg_set_break,
225 	.ucom_cfg_param = &uvscom_cfg_param,
226 	.ucom_cfg_open = &uvscom_cfg_open,
227 	.ucom_cfg_close = &uvscom_cfg_close,
228 	.ucom_pre_open = &uvscom_pre_open,
229 	.ucom_pre_param = &uvscom_pre_param,
230 	.ucom_start_read = &uvscom_start_read,
231 	.ucom_stop_read = &uvscom_stop_read,
232 	.ucom_start_write = &uvscom_start_write,
233 	.ucom_stop_write = &uvscom_stop_write,
234 	.ucom_poll = &uvscom_poll,
235 	.ucom_free = &uvscom_free,
236 };
237 
238 static const STRUCT_USB_HOST_ID uvscom_devs[] = {
239 	/* SUNTAC U-Cable type A4 */
240 	{USB_VPI(USB_VENDOR_SUNTAC, USB_PRODUCT_SUNTAC_AS144L4, 0)},
241 	/* SUNTAC U-Cable type D2 */
242 	{USB_VPI(USB_VENDOR_SUNTAC, USB_PRODUCT_SUNTAC_DS96L, 0)},
243 	/* SUNTAC Ir-Trinity */
244 	{USB_VPI(USB_VENDOR_SUNTAC, USB_PRODUCT_SUNTAC_IS96U, 0)},
245 	/* SUNTAC U-Cable type P1 */
246 	{USB_VPI(USB_VENDOR_SUNTAC, USB_PRODUCT_SUNTAC_PS64P1, 0)},
247 	/* SUNTAC Slipper U */
248 	{USB_VPI(USB_VENDOR_SUNTAC, USB_PRODUCT_SUNTAC_VS10U, 0)},
249 };
250 
251 static device_method_t uvscom_methods[] = {
252 	DEVMETHOD(device_probe, uvscom_probe),
253 	DEVMETHOD(device_attach, uvscom_attach),
254 	DEVMETHOD(device_detach, uvscom_detach),
255 	DEVMETHOD_END
256 };
257 
258 static driver_t uvscom_driver = {
259 	.name = "uvscom",
260 	.methods = uvscom_methods,
261 	.size = sizeof(struct uvscom_softc),
262 };
263 
264 DRIVER_MODULE(uvscom, uhub, uvscom_driver, NULL, NULL);
265 MODULE_DEPEND(uvscom, ucom, 1, 1, 1);
266 MODULE_DEPEND(uvscom, usb, 1, 1, 1);
267 MODULE_VERSION(uvscom, UVSCOM_MODVER);
268 USB_PNP_HOST_INFO(uvscom_devs);
269 
270 static int
uvscom_probe(device_t dev)271 uvscom_probe(device_t dev)
272 {
273 	struct usb_attach_arg *uaa = device_get_ivars(dev);
274 
275 	if (uaa->usb_mode != USB_MODE_HOST) {
276 		return (ENXIO);
277 	}
278 	if (uaa->info.bConfigIndex != UVSCOM_CONFIG_INDEX) {
279 		return (ENXIO);
280 	}
281 	if (uaa->info.bIfaceIndex != UVSCOM_IFACE_INDEX) {
282 		return (ENXIO);
283 	}
284 	return (usbd_lookup_id_by_uaa(uvscom_devs, sizeof(uvscom_devs), uaa));
285 }
286 
287 static int
uvscom_attach(device_t dev)288 uvscom_attach(device_t dev)
289 {
290 	struct usb_attach_arg *uaa = device_get_ivars(dev);
291 	struct uvscom_softc *sc = device_get_softc(dev);
292 	int error;
293 
294 	device_set_usb_desc(dev);
295 	mtx_init(&sc->sc_mtx, "uvscom", NULL, MTX_DEF);
296 	ucom_ref(&sc->sc_super_ucom);
297 
298 	sc->sc_udev = uaa->device;
299 
300 	DPRINTF("sc=%p\n", sc);
301 
302 	sc->sc_iface_no = uaa->info.bIfaceNum;
303 	sc->sc_iface_index = UVSCOM_IFACE_INDEX;
304 
305 	error = usbd_transfer_setup(uaa->device, &sc->sc_iface_index,
306 	    sc->sc_xfer, uvscom_config, UVSCOM_N_TRANSFER, sc, &sc->sc_mtx);
307 
308 	if (error) {
309 		DPRINTF("could not allocate all USB transfers!\n");
310 		goto detach;
311 	}
312 	sc->sc_line = UVSCOM_LINE_INIT;
313 
314 	/* clear stall at first run */
315 	mtx_lock(&sc->sc_mtx);
316 	usbd_xfer_set_stall(sc->sc_xfer[UVSCOM_BULK_DT_WR]);
317 	usbd_xfer_set_stall(sc->sc_xfer[UVSCOM_BULK_DT_RD]);
318 	mtx_unlock(&sc->sc_mtx);
319 
320 	error = ucom_attach(&sc->sc_super_ucom, &sc->sc_ucom, 1, sc,
321 	    &uvscom_callback, &sc->sc_mtx);
322 	if (error) {
323 		goto detach;
324 	}
325 	ucom_set_pnpinfo_usb(&sc->sc_super_ucom, dev);
326 
327 	/* start interrupt pipe */
328 	mtx_lock(&sc->sc_mtx);
329 	usbd_transfer_start(sc->sc_xfer[UVSCOM_INTR_DT_RD]);
330 	mtx_unlock(&sc->sc_mtx);
331 
332 	return (0);
333 
334 detach:
335 	uvscom_detach(dev);
336 	return (ENXIO);
337 }
338 
339 static int
uvscom_detach(device_t dev)340 uvscom_detach(device_t dev)
341 {
342 	struct uvscom_softc *sc = device_get_softc(dev);
343 
344 	DPRINTF("sc=%p\n", sc);
345 
346 	/* stop interrupt pipe */
347 
348 	if (sc->sc_xfer[UVSCOM_INTR_DT_RD])
349 		usbd_transfer_stop(sc->sc_xfer[UVSCOM_INTR_DT_RD]);
350 
351 	ucom_detach(&sc->sc_super_ucom, &sc->sc_ucom);
352 	usbd_transfer_unsetup(sc->sc_xfer, UVSCOM_N_TRANSFER);
353 
354 	device_claim_softc(dev);
355 
356 	uvscom_free_softc(sc);
357 
358 	return (0);
359 }
360 
361 UCOM_UNLOAD_DRAIN(uvscom);
362 
363 static void
uvscom_free_softc(struct uvscom_softc * sc)364 uvscom_free_softc(struct uvscom_softc *sc)
365 {
366 	if (ucom_unref(&sc->sc_super_ucom)) {
367 		mtx_destroy(&sc->sc_mtx);
368 		device_free_softc(sc);
369 	}
370 }
371 
372 static void
uvscom_free(struct ucom_softc * ucom)373 uvscom_free(struct ucom_softc *ucom)
374 {
375 	uvscom_free_softc(ucom->sc_parent);
376 }
377 
378 static void
uvscom_write_callback(struct usb_xfer * xfer,usb_error_t error)379 uvscom_write_callback(struct usb_xfer *xfer, usb_error_t error)
380 {
381 	struct uvscom_softc *sc = usbd_xfer_softc(xfer);
382 	struct usb_page_cache *pc;
383 	uint32_t actlen;
384 
385 	switch (USB_GET_STATE(xfer)) {
386 	case USB_ST_SETUP:
387 	case USB_ST_TRANSFERRED:
388 tr_setup:
389 		pc = usbd_xfer_get_frame(xfer, 0);
390 		if (ucom_get_data(&sc->sc_ucom, pc, 0,
391 		    UVSCOM_BULK_BUF_SIZE, &actlen)) {
392 			usbd_xfer_set_frame_len(xfer, 0, actlen);
393 			usbd_transfer_submit(xfer);
394 		}
395 		return;
396 
397 	default:			/* Error */
398 		if (error != USB_ERR_CANCELLED) {
399 			/* try to clear stall first */
400 			usbd_xfer_set_stall(xfer);
401 			goto tr_setup;
402 		}
403 		return;
404 	}
405 }
406 
407 static void
uvscom_read_callback(struct usb_xfer * xfer,usb_error_t error)408 uvscom_read_callback(struct usb_xfer *xfer, usb_error_t error)
409 {
410 	struct uvscom_softc *sc = usbd_xfer_softc(xfer);
411 	struct usb_page_cache *pc;
412 	int actlen;
413 
414 	usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
415 
416 	switch (USB_GET_STATE(xfer)) {
417 	case USB_ST_TRANSFERRED:
418 		pc = usbd_xfer_get_frame(xfer, 0);
419 		ucom_put_data(&sc->sc_ucom, pc, 0, actlen);
420 
421 	case USB_ST_SETUP:
422 tr_setup:
423 		usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
424 		usbd_transfer_submit(xfer);
425 		return;
426 
427 	default:			/* Error */
428 		if (error != USB_ERR_CANCELLED) {
429 			/* try to clear stall first */
430 			usbd_xfer_set_stall(xfer);
431 			goto tr_setup;
432 		}
433 		return;
434 	}
435 }
436 
437 static void
uvscom_intr_callback(struct usb_xfer * xfer,usb_error_t error)438 uvscom_intr_callback(struct usb_xfer *xfer, usb_error_t error)
439 {
440 	struct uvscom_softc *sc = usbd_xfer_softc(xfer);
441 	struct usb_page_cache *pc;
442 	uint8_t buf[2];
443 	int actlen;
444 
445 	usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
446 
447 	switch (USB_GET_STATE(xfer)) {
448 	case USB_ST_TRANSFERRED:
449 		if (actlen >= 2) {
450 			pc = usbd_xfer_get_frame(xfer, 0);
451 			usbd_copy_out(pc, 0, buf, sizeof(buf));
452 
453 			sc->sc_lsr = 0;
454 			sc->sc_msr = 0;
455 			sc->sc_unit_status = buf[1];
456 
457 			if (buf[0] & UVSCOM_TXRDY) {
458 				sc->sc_lsr |= ULSR_TXRDY;
459 			}
460 			if (buf[0] & UVSCOM_RXRDY) {
461 				sc->sc_lsr |= ULSR_RXRDY;
462 			}
463 			if (buf[1] & UVSCOM_CTS) {
464 				sc->sc_msr |= SER_CTS;
465 			}
466 			if (buf[1] & UVSCOM_DSR) {
467 				sc->sc_msr |= SER_DSR;
468 			}
469 			if (buf[1] & UVSCOM_DCD) {
470 				sc->sc_msr |= SER_DCD;
471 			}
472 			/*
473 			 * the UCOM layer will ignore this call if the TTY
474 			 * device is closed!
475 			 */
476 			ucom_status_change(&sc->sc_ucom);
477 		}
478 	case USB_ST_SETUP:
479 tr_setup:
480 		usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
481 		usbd_transfer_submit(xfer);
482 		return;
483 
484 	default:			/* Error */
485 		if (error != USB_ERR_CANCELLED) {
486 			/* try to clear stall first */
487 			usbd_xfer_set_stall(xfer);
488 			goto tr_setup;
489 		}
490 		return;
491 	}
492 }
493 
494 static void
uvscom_cfg_set_dtr(struct ucom_softc * ucom,uint8_t onoff)495 uvscom_cfg_set_dtr(struct ucom_softc *ucom, uint8_t onoff)
496 {
497 	struct uvscom_softc *sc = ucom->sc_parent;
498 
499 	DPRINTF("onoff = %d\n", onoff);
500 
501 	if (onoff)
502 		sc->sc_line |= UVSCOM_DTR;
503 	else
504 		sc->sc_line &= ~UVSCOM_DTR;
505 
506 	uvscom_cfg_write(sc, UVSCOM_LINE_CTL, sc->sc_line);
507 }
508 
509 static void
uvscom_cfg_set_rts(struct ucom_softc * ucom,uint8_t onoff)510 uvscom_cfg_set_rts(struct ucom_softc *ucom, uint8_t onoff)
511 {
512 	struct uvscom_softc *sc = ucom->sc_parent;
513 
514 	DPRINTF("onoff = %d\n", onoff);
515 
516 	if (onoff)
517 		sc->sc_line |= UVSCOM_RTS;
518 	else
519 		sc->sc_line &= ~UVSCOM_RTS;
520 
521 	uvscom_cfg_write(sc, UVSCOM_LINE_CTL, sc->sc_line);
522 }
523 
524 static void
uvscom_cfg_set_break(struct ucom_softc * ucom,uint8_t onoff)525 uvscom_cfg_set_break(struct ucom_softc *ucom, uint8_t onoff)
526 {
527 	struct uvscom_softc *sc = ucom->sc_parent;
528 
529 	DPRINTF("onoff = %d\n", onoff);
530 
531 	if (onoff)
532 		sc->sc_line |= UVSCOM_BREAK;
533 	else
534 		sc->sc_line &= ~UVSCOM_BREAK;
535 
536 	uvscom_cfg_write(sc, UVSCOM_LINE_CTL, sc->sc_line);
537 }
538 
539 static int
uvscom_pre_param(struct ucom_softc * ucom,struct termios * t)540 uvscom_pre_param(struct ucom_softc *ucom, struct termios *t)
541 {
542 	switch (t->c_ospeed) {
543 		case B150:
544 		case B300:
545 		case B600:
546 		case B1200:
547 		case B2400:
548 		case B4800:
549 		case B9600:
550 		case B19200:
551 		case B38400:
552 		case B57600:
553 		case B115200:
554 		default:
555 		return (EINVAL);
556 	}
557 	return (0);
558 }
559 
560 static void
uvscom_cfg_param(struct ucom_softc * ucom,struct termios * t)561 uvscom_cfg_param(struct ucom_softc *ucom, struct termios *t)
562 {
563 	struct uvscom_softc *sc = ucom->sc_parent;
564 	uint16_t value;
565 
566 	DPRINTF("\n");
567 
568 	switch (t->c_ospeed) {
569 	case B150:
570 		value = UVSCOM_SPEED_150BPS;
571 		break;
572 	case B300:
573 		value = UVSCOM_SPEED_300BPS;
574 		break;
575 	case B600:
576 		value = UVSCOM_SPEED_600BPS;
577 		break;
578 	case B1200:
579 		value = UVSCOM_SPEED_1200BPS;
580 		break;
581 	case B2400:
582 		value = UVSCOM_SPEED_2400BPS;
583 		break;
584 	case B4800:
585 		value = UVSCOM_SPEED_4800BPS;
586 		break;
587 	case B9600:
588 		value = UVSCOM_SPEED_9600BPS;
589 		break;
590 	case B19200:
591 		value = UVSCOM_SPEED_19200BPS;
592 		break;
593 	case B38400:
594 		value = UVSCOM_SPEED_38400BPS;
595 		break;
596 	case B57600:
597 		value = UVSCOM_SPEED_57600BPS;
598 		break;
599 	case B115200:
600 		value = UVSCOM_SPEED_115200BPS;
601 		break;
602 	default:
603 		return;
604 	}
605 
606 	uvscom_cfg_write(sc, UVSCOM_SET_SPEED, value);
607 
608 	value = 0;
609 
610 	if (t->c_cflag & CSTOPB) {
611 		value |= UVSCOM_STOP_BIT_2;
612 	}
613 	if (t->c_cflag & PARENB) {
614 		if (t->c_cflag & PARODD) {
615 			value |= UVSCOM_PARITY_ODD;
616 		} else {
617 			value |= UVSCOM_PARITY_EVEN;
618 		}
619 	} else {
620 		value |= UVSCOM_PARITY_NONE;
621 	}
622 
623 	switch (t->c_cflag & CSIZE) {
624 	case CS5:
625 		value |= UVSCOM_DATA_BIT_5;
626 		break;
627 	case CS6:
628 		value |= UVSCOM_DATA_BIT_6;
629 		break;
630 	case CS7:
631 		value |= UVSCOM_DATA_BIT_7;
632 		break;
633 	default:
634 	case CS8:
635 		value |= UVSCOM_DATA_BIT_8;
636 		break;
637 	}
638 
639 	uvscom_cfg_write(sc, UVSCOM_SET_PARAM, value);
640 }
641 
642 static int
uvscom_pre_open(struct ucom_softc * ucom)643 uvscom_pre_open(struct ucom_softc *ucom)
644 {
645 	struct uvscom_softc *sc = ucom->sc_parent;
646 
647 	DPRINTF("sc = %p\n", sc);
648 
649 	/* check if PC card was inserted */
650 
651 	if (sc->sc_unit_status & UVSCOM_NOCARD) {
652 		DPRINTF("no PC card!\n");
653 		return (ENXIO);
654 	}
655 	return (0);
656 }
657 
658 static void
uvscom_cfg_open(struct ucom_softc * ucom)659 uvscom_cfg_open(struct ucom_softc *ucom)
660 {
661 	struct uvscom_softc *sc = ucom->sc_parent;
662 
663 	DPRINTF("sc = %p\n", sc);
664 
665 	uvscom_cfg_read_status(sc);
666 }
667 
668 static void
uvscom_cfg_close(struct ucom_softc * ucom)669 uvscom_cfg_close(struct ucom_softc *ucom)
670 {
671 	struct uvscom_softc *sc = ucom->sc_parent;
672 
673 	DPRINTF("sc=%p\n", sc);
674 
675 	uvscom_cfg_write(sc, UVSCOM_SHUTDOWN, 0);
676 }
677 
678 static void
uvscom_start_read(struct ucom_softc * ucom)679 uvscom_start_read(struct ucom_softc *ucom)
680 {
681 	struct uvscom_softc *sc = ucom->sc_parent;
682 
683 	usbd_transfer_start(sc->sc_xfer[UVSCOM_BULK_DT_RD]);
684 }
685 
686 static void
uvscom_stop_read(struct ucom_softc * ucom)687 uvscom_stop_read(struct ucom_softc *ucom)
688 {
689 	struct uvscom_softc *sc = ucom->sc_parent;
690 
691 	usbd_transfer_stop(sc->sc_xfer[UVSCOM_BULK_DT_RD]);
692 }
693 
694 static void
uvscom_start_write(struct ucom_softc * ucom)695 uvscom_start_write(struct ucom_softc *ucom)
696 {
697 	struct uvscom_softc *sc = ucom->sc_parent;
698 
699 	usbd_transfer_start(sc->sc_xfer[UVSCOM_BULK_DT_WR]);
700 }
701 
702 static void
uvscom_stop_write(struct ucom_softc * ucom)703 uvscom_stop_write(struct ucom_softc *ucom)
704 {
705 	struct uvscom_softc *sc = ucom->sc_parent;
706 
707 	usbd_transfer_stop(sc->sc_xfer[UVSCOM_BULK_DT_WR]);
708 }
709 
710 static void
uvscom_cfg_get_status(struct ucom_softc * ucom,uint8_t * lsr,uint8_t * msr)711 uvscom_cfg_get_status(struct ucom_softc *ucom, uint8_t *lsr, uint8_t *msr)
712 {
713 	struct uvscom_softc *sc = ucom->sc_parent;
714 
715 	*lsr = sc->sc_lsr;
716 	*msr = sc->sc_msr;
717 }
718 
719 static void
uvscom_cfg_write(struct uvscom_softc * sc,uint8_t index,uint16_t value)720 uvscom_cfg_write(struct uvscom_softc *sc, uint8_t index, uint16_t value)
721 {
722 	struct usb_device_request req;
723 	usb_error_t err;
724 
725 	req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
726 	req.bRequest = index;
727 	USETW(req.wValue, value);
728 	USETW(req.wIndex, 0);
729 	USETW(req.wLength, 0);
730 
731 	err = ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
732 	    &req, NULL, 0, 1000);
733 	if (err) {
734 		DPRINTFN(0, "device request failed, err=%s "
735 		    "(ignored)\n", usbd_errstr(err));
736 	}
737 }
738 
739 static uint16_t
uvscom_cfg_read_status(struct uvscom_softc * sc)740 uvscom_cfg_read_status(struct uvscom_softc *sc)
741 {
742 	struct usb_device_request req;
743 	usb_error_t err;
744 	uint8_t data[2];
745 
746 	req.bmRequestType = UT_READ_VENDOR_DEVICE;
747 	req.bRequest = UVSCOM_READ_STATUS;
748 	USETW(req.wValue, 0);
749 	USETW(req.wIndex, 0);
750 	USETW(req.wLength, 2);
751 
752 	err = ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
753 	    &req, data, 0, 1000);
754 	if (err) {
755 		DPRINTFN(0, "device request failed, err=%s "
756 		    "(ignored)\n", usbd_errstr(err));
757 	}
758 	return (data[0] | (data[1] << 8));
759 }
760 
761 static void
uvscom_poll(struct ucom_softc * ucom)762 uvscom_poll(struct ucom_softc *ucom)
763 {
764 	struct uvscom_softc *sc = ucom->sc_parent;
765 	usbd_transfer_poll(sc->sc_xfer, UVSCOM_N_TRANSFER);
766 }
767