1 /* $OpenBSD: uslcom.c,v 1.17 2007/11/24 10:52:12 jsg Exp $ */
2
3 /*
4 * Copyright (c) 2006 Jonathan Gray <jsg@openbsd.org>
5 *
6 * Permission to use, copy, modify, and distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
9 *
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 */
18
19 #include <sys/stdint.h>
20 #include <sys/param.h>
21 #include <sys/queue.h>
22 #include <sys/types.h>
23 #include <sys/systm.h>
24 #include <sys/kernel.h>
25 #include <sys/bus.h>
26 #include <sys/module.h>
27 #include <sys/lock.h>
28 #include <sys/condvar.h>
29 #include <sys/sysctl.h>
30 #include <sys/unistd.h>
31 #include <sys/callout.h>
32 #include <sys/malloc.h>
33 #include <sys/caps.h>
34 #include <sys/serial.h>
35
36 #include <bus/u4b/usb.h>
37 #include <bus/u4b/usbdi.h>
38 #include <bus/u4b/usbdi_util.h>
39 #include <bus/u4b/usb_ioctl.h>
40 #include "usbdevs.h"
41
42 #define USB_DEBUG_VAR uslcom_debug
43 #include <bus/u4b/usb_debug.h>
44 #include <bus/u4b/usb_process.h>
45
46 #include <bus/u4b/serial/usb_serial.h>
47
48 #ifdef USB_DEBUG
49 static int uslcom_debug = 0;
50
51 static SYSCTL_NODE(_hw_usb, OID_AUTO, uslcom, CTLFLAG_RW, 0, "USB uslcom");
52 SYSCTL_INT(_hw_usb_uslcom, OID_AUTO, debug, CTLFLAG_RW,
53 &uslcom_debug, 0, "Debug level");
54 #endif
55
56 #define USLCOM_BULK_BUF_SIZE 1024
57 #define USLCOM_CONFIG_INDEX 0
58 #define USLCOM_IFACE_INDEX 0
59
60 #define USLCOM_SET_DATA_BITS(x) ((x) << 8)
61
62 /* Request types */
63 #define USLCOM_WRITE 0x41
64 #define USLCOM_READ 0xc1
65
66 /* Request codes */
67 #define USLCOM_UART 0x00
68 #define USLCOM_BAUD_RATE 0x01
69 #define USLCOM_DATA 0x03
70 #define USLCOM_BREAK 0x05
71 #define USLCOM_CTRL 0x07
72 #define USLCOM_RCTRL 0x08
73 #define USLCOM_SET_FLOWCTRL 0x13
74 #define USLCOM_VENDOR_SPECIFIC 0xff
75
76 /* USLCOM_UART values */
77 #define USLCOM_UART_DISABLE 0x00
78 #define USLCOM_UART_ENABLE 0x01
79
80 /* USLCOM_CTRL/USLCOM_RCTRL values */
81 #define USLCOM_CTRL_DTR_ON 0x0001
82 #define USLCOM_CTRL_DTR_SET 0x0100
83 #define USLCOM_CTRL_RTS_ON 0x0002
84 #define USLCOM_CTRL_RTS_SET 0x0200
85 #define USLCOM_CTRL_CTS 0x0010
86 #define USLCOM_CTRL_DSR 0x0020
87 #define USLCOM_CTRL_RI 0x0040
88 #define USLCOM_CTRL_DCD 0x0080
89
90 /* USLCOM_BAUD_RATE values */
91 #define USLCOM_BAUD_REF 0x384000
92
93 /* USLCOM_DATA values */
94 #define USLCOM_STOP_BITS_1 0x00
95 #define USLCOM_STOP_BITS_2 0x02
96 #define USLCOM_PARITY_NONE 0x00
97 #define USLCOM_PARITY_ODD 0x10
98 #define USLCOM_PARITY_EVEN 0x20
99
100 #define USLCOM_PORT_NO 0x0000
101
102 /* USLCOM_BREAK values */
103 #define USLCOM_BREAK_OFF 0x00
104 #define USLCOM_BREAK_ON 0x01
105
106 /* USLCOM_SET_FLOWCTRL values - 1st word */
107 #define USLCOM_FLOW_DTR_ON 0x00000001 /* DTR static active */
108 #define USLCOM_FLOW_CTS_HS 0x00000008 /* CTS handshake */
109 /* USLCOM_SET_FLOWCTRL values - 2nd word */
110 #define USLCOM_FLOW_RTS_ON 0x00000040 /* RTS static active */
111 #define USLCOM_FLOW_RTS_HS 0x00000080 /* RTS handshake */
112
113 /* USLCOM_VENDOR_SPECIFIC values */
114 #define USLCOM_WRITE_LATCH 0x37E1
115 #define USLCOM_READ_LATCH 0x00C2
116
117 enum {
118 USLCOM_BULK_DT_WR,
119 USLCOM_BULK_DT_RD,
120 USLCOM_CTRL_DT_RD,
121 USLCOM_N_TRANSFER,
122 };
123
124 struct uslcom_softc {
125 struct ucom_super_softc sc_super_ucom;
126 struct ucom_softc sc_ucom;
127 struct usb_callout sc_watchdog;
128
129 struct usb_xfer *sc_xfer[USLCOM_N_TRANSFER];
130 struct usb_device *sc_udev;
131 struct lock sc_lock;
132
133 uint8_t sc_msr;
134 uint8_t sc_lsr;
135 };
136
137 static device_probe_t uslcom_probe;
138 static device_attach_t uslcom_attach;
139 static device_detach_t uslcom_detach;
140
141 static usb_callback_t uslcom_write_callback;
142 static usb_callback_t uslcom_read_callback;
143 static usb_callback_t uslcom_control_callback;
144
145 static void uslcom_open(struct ucom_softc *);
146 static void uslcom_close(struct ucom_softc *);
147 static void uslcom_set_dtr(struct ucom_softc *, uint8_t);
148 static void uslcom_set_rts(struct ucom_softc *, uint8_t);
149 static void uslcom_set_break(struct ucom_softc *, uint8_t);
150 static int uslcom_ioctl(struct ucom_softc *, uint32_t, caddr_t, int,
151 struct thread *);
152 static int uslcom_pre_param(struct ucom_softc *, struct termios *);
153 static void uslcom_param(struct ucom_softc *, struct termios *);
154 static void uslcom_get_status(struct ucom_softc *, uint8_t *, uint8_t *);
155 static void uslcom_start_read(struct ucom_softc *);
156 static void uslcom_stop_read(struct ucom_softc *);
157 static void uslcom_start_write(struct ucom_softc *);
158 static void uslcom_stop_write(struct ucom_softc *);
159 static void uslcom_poll(struct ucom_softc *ucom);
160
161 static const struct usb_config uslcom_config[USLCOM_N_TRANSFER] = {
162
163 [USLCOM_BULK_DT_WR] = {
164 .type = UE_BULK,
165 .endpoint = UE_ADDR_ANY,
166 .direction = UE_DIR_OUT,
167 .bufsize = USLCOM_BULK_BUF_SIZE,
168 .flags = {.pipe_bof = 1,},
169 .callback = &uslcom_write_callback,
170 },
171
172 [USLCOM_BULK_DT_RD] = {
173 .type = UE_BULK,
174 .endpoint = UE_ADDR_ANY,
175 .direction = UE_DIR_IN,
176 .bufsize = USLCOM_BULK_BUF_SIZE,
177 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
178 .callback = &uslcom_read_callback,
179 },
180 [USLCOM_CTRL_DT_RD] = {
181 .type = UE_CONTROL,
182 .endpoint = 0x00,
183 .direction = UE_DIR_ANY,
184 .bufsize = sizeof(struct usb_device_request) + 8,
185 .flags = {.pipe_bof = 1,},
186 .callback = &uslcom_control_callback,
187 .timeout = 1000, /* 1 second timeout */
188 },
189 };
190
191 static struct ucom_callback uslcom_callback = {
192 .ucom_cfg_open = &uslcom_open,
193 .ucom_cfg_close = &uslcom_close,
194 .ucom_cfg_get_status = &uslcom_get_status,
195 .ucom_cfg_set_dtr = &uslcom_set_dtr,
196 .ucom_cfg_set_rts = &uslcom_set_rts,
197 .ucom_cfg_set_break = &uslcom_set_break,
198 .ucom_ioctl = &uslcom_ioctl,
199 .ucom_cfg_param = &uslcom_param,
200 .ucom_pre_param = &uslcom_pre_param,
201 .ucom_start_read = &uslcom_start_read,
202 .ucom_stop_read = &uslcom_stop_read,
203 .ucom_start_write = &uslcom_start_write,
204 .ucom_stop_write = &uslcom_stop_write,
205 .ucom_poll = &uslcom_poll,
206 };
207
208 static const STRUCT_USB_HOST_ID uslcom_devs[] = {
209 #define USLCOM_DEV(v,p) { USB_VP(USB_VENDOR_##v, USB_PRODUCT_##v##_##p) }
210 USLCOM_DEV(BALTECH, CARDREADER),
211 USLCOM_DEV(CLIPSAL, 5500PCU),
212 USLCOM_DEV(DATAAPEX, MULTICOM),
213 USLCOM_DEV(DELL, DW700),
214 USLCOM_DEV(DIGIANSWER, ZIGBEE802154),
215 USLCOM_DEV(DYNASTREAM, ANTDEVBOARD),
216 USLCOM_DEV(DYNASTREAM, ANTDEVBOARD2),
217 USLCOM_DEV(DYNASTREAM, ANT2USB),
218 USLCOM_DEV(ELV, USBI2C),
219 USLCOM_DEV(FOXCONN, PIRELLI_DP_L10),
220 USLCOM_DEV(FOXCONN, TCOM_TC_300),
221 USLCOM_DEV(GEMALTO, PROXPU),
222 USLCOM_DEV(JABLOTRON, PC60B),
223 USLCOM_DEV(MEI, CASHFLOW_SC),
224 USLCOM_DEV(MEI, S2000),
225 USLCOM_DEV(JABLOTRON, PC60B),
226 USLCOM_DEV(OWEN, AC4),
227 USLCOM_DEV(PHILIPS, ACE1001),
228 USLCOM_DEV(PLX, CA42),
229 USLCOM_DEV(RENESAS, RX610),
230 USLCOM_DEV(SILABS, AEROCOMM),
231 USLCOM_DEV(SILABS, AMBER_AMB2560),
232 USLCOM_DEV(SILABS, ARGUSISP),
233 USLCOM_DEV(SILABS, ARKHAM_DS101_A),
234 USLCOM_DEV(SILABS, ARKHAM_DS101_M),
235 USLCOM_DEV(SILABS, ARYGON_MIFARE),
236 USLCOM_DEV(SILABS, AVIT_USB_TTL),
237 USLCOM_DEV(SILABS, B_G_H3000),
238 USLCOM_DEV(SILABS, BALLUFF_RFID),
239 USLCOM_DEV(SILABS, BEI_VCP),
240 USLCOM_DEV(SILABS, BSM7DUSB),
241 USLCOM_DEV(SILABS, BURNSIDE),
242 USLCOM_DEV(SILABS, C2_EDGE_MODEM),
243 USLCOM_DEV(SILABS, CP2102),
244 USLCOM_DEV(SILABS, CP210X_2),
245 USLCOM_DEV(SILABS, CRUMB128),
246 USLCOM_DEV(SILABS, CYGNAL),
247 USLCOM_DEV(SILABS, CYGNAL_DEBUG),
248 USLCOM_DEV(SILABS, CYGNAL_GPS),
249 USLCOM_DEV(SILABS, DEGREE),
250 USLCOM_DEV(SILABS, EMS_C1007),
251 USLCOM_DEV(SILABS, HELICOM),
252 USLCOM_DEV(SILABS, IMS_USB_RS422),
253 USLCOM_DEV(SILABS, INFINITY_MIC),
254 USLCOM_DEV(SILABS, INSYS_MODEM),
255 USLCOM_DEV(SILABS, KYOCERA_GPS),
256 USLCOM_DEV(SILABS, LIPOWSKY_HARP),
257 USLCOM_DEV(SILABS, LIPOWSKY_JTAG),
258 USLCOM_DEV(SILABS, LIPOWSKY_LIN),
259 USLCOM_DEV(SILABS, MC35PU),
260 USLCOM_DEV(SILABS, MJS_TOSLINK),
261 USLCOM_DEV(SILABS, MSD_DASHHAWK),
262 USLCOM_DEV(SILABS, POLOLU),
263 USLCOM_DEV(SILABS, PROCYON_AVS),
264 USLCOM_DEV(SILABS, SB_PARAMOUNT_ME),
265 USLCOM_DEV(SILABS, SUUNTO),
266 USLCOM_DEV(SILABS, TAMSMASTER),
267 USLCOM_DEV(SILABS, TELEGESIS_ETRX2),
268 USLCOM_DEV(SILABS, TRACIENT),
269 USLCOM_DEV(SILABS, TRAQMATE),
270 USLCOM_DEV(SILABS, USBCOUNT50),
271 USLCOM_DEV(SILABS, USBPULSE100),
272 USLCOM_DEV(SILABS, USBSCOPE50),
273 USLCOM_DEV(SILABS, USBWAVE12),
274 USLCOM_DEV(SILABS, VSTABI),
275 USLCOM_DEV(SILABS, WAVIT),
276 USLCOM_DEV(SILABS, WMRBATT),
277 USLCOM_DEV(SILABS, WMRRIGBLASTER),
278 USLCOM_DEV(SILABS, WMRRIGTALK),
279 USLCOM_DEV(SILABS, ZEPHYR_BIO),
280 USLCOM_DEV(SILABS2, DCU11CLONE),
281 USLCOM_DEV(SILABS3, GPRS_MODEM),
282 USLCOM_DEV(SILABS4, 100EU_MODEM),
283 USLCOM_DEV(SYNTECH, CYPHERLAB100),
284 USLCOM_DEV(USI, MC60),
285 USLCOM_DEV(VAISALA, CABLE),
286 USLCOM_DEV(WAGO, SERVICECABLE),
287 USLCOM_DEV(WAVESENSE, JAZZ),
288 USLCOM_DEV(WIENERPLEINBAUS, PL512),
289 USLCOM_DEV(WIENERPLEINBAUS, RCM),
290 USLCOM_DEV(WIENERPLEINBAUS, MPOD),
291 USLCOM_DEV(WIENERPLEINBAUS, CML),
292 #undef USLCOM_DEV
293 };
294
295 static device_method_t uslcom_methods[] = {
296 DEVMETHOD(device_probe, uslcom_probe),
297 DEVMETHOD(device_attach, uslcom_attach),
298 DEVMETHOD(device_detach, uslcom_detach),
299 DEVMETHOD_END
300 };
301
302 static devclass_t uslcom_devclass;
303
304 static driver_t uslcom_driver = {
305 .name = "uslcom",
306 .methods = uslcom_methods,
307 .size = sizeof(struct uslcom_softc),
308 };
309
310 DRIVER_MODULE(uslcom, uhub, uslcom_driver, uslcom_devclass, NULL, NULL);
311 MODULE_DEPEND(uslcom, ucom, 1, 1, 1);
312 MODULE_DEPEND(uslcom, usb, 1, 1, 1);
313 MODULE_VERSION(uslcom, 1);
314
315 static void
uslcom_watchdog(void * arg)316 uslcom_watchdog(void *arg)
317 {
318 struct uslcom_softc *sc = arg;
319
320 KKASSERT(lockowned(&sc->sc_lock));
321
322 usbd_transfer_start(sc->sc_xfer[USLCOM_CTRL_DT_RD]);
323
324 usb_callout_reset(&sc->sc_watchdog,
325 hz / 4, &uslcom_watchdog, sc);
326 }
327
328 static int
uslcom_probe(device_t dev)329 uslcom_probe(device_t dev)
330 {
331 struct usb_attach_arg *uaa = device_get_ivars(dev);
332
333 DPRINTFN(11, "\n");
334
335 if (uaa->usb_mode != USB_MODE_HOST) {
336 return (ENXIO);
337 }
338 if (uaa->info.bConfigIndex != USLCOM_CONFIG_INDEX) {
339 return (ENXIO);
340 }
341 if (uaa->info.bIfaceIndex != USLCOM_IFACE_INDEX) {
342 return (ENXIO);
343 }
344 return (usbd_lookup_id_by_uaa(uslcom_devs, sizeof(uslcom_devs), uaa));
345 }
346
347 static int
uslcom_attach(device_t dev)348 uslcom_attach(device_t dev)
349 {
350 struct usb_attach_arg *uaa = device_get_ivars(dev);
351 struct uslcom_softc *sc = device_get_softc(dev);
352 int error;
353
354 DPRINTFN(11, "\n");
355
356 device_set_usb_desc(dev);
357 lockinit(&sc->sc_lock, "uslcom", 0, LK_CANRECURSE);
358 usb_callout_init_mtx(&sc->sc_watchdog, &sc->sc_lock, 0);
359
360 sc->sc_udev = uaa->device;
361
362 error = usbd_transfer_setup(uaa->device,
363 &uaa->info.bIfaceIndex, sc->sc_xfer, uslcom_config,
364 USLCOM_N_TRANSFER, sc, &sc->sc_lock);
365 if (error) {
366 DPRINTF("one or more missing USB endpoints, "
367 "error=%s\n", usbd_errstr(error));
368 goto detach;
369 }
370 /* clear stall at first run */
371 lockmgr(&sc->sc_lock, LK_EXCLUSIVE);
372 usbd_xfer_set_stall(sc->sc_xfer[USLCOM_BULK_DT_WR]);
373 usbd_xfer_set_stall(sc->sc_xfer[USLCOM_BULK_DT_RD]);
374 lockmgr(&sc->sc_lock, LK_RELEASE);
375
376 error = ucom_attach(&sc->sc_super_ucom, &sc->sc_ucom, 1, sc,
377 &uslcom_callback, &sc->sc_lock);
378 if (error) {
379 goto detach;
380 }
381 ucom_set_pnpinfo_usb(&sc->sc_super_ucom, dev);
382
383 return (0);
384
385 detach:
386 uslcom_detach(dev);
387 return (ENXIO);
388 }
389
390 static int
uslcom_detach(device_t dev)391 uslcom_detach(device_t dev)
392 {
393 struct uslcom_softc *sc = device_get_softc(dev);
394
395 DPRINTF("sc=%p\n", sc);
396
397 ucom_detach(&sc->sc_super_ucom, &sc->sc_ucom);
398 usbd_transfer_unsetup(sc->sc_xfer, USLCOM_N_TRANSFER);
399
400 usb_callout_drain(&sc->sc_watchdog);
401 lockuninit(&sc->sc_lock);
402
403 return (0);
404 }
405
406 static void
uslcom_open(struct ucom_softc * ucom)407 uslcom_open(struct ucom_softc *ucom)
408 {
409 struct uslcom_softc *sc = ucom->sc_parent;
410 struct usb_device_request req;
411
412 req.bmRequestType = USLCOM_WRITE;
413 req.bRequest = USLCOM_UART;
414 USETW(req.wValue, USLCOM_UART_ENABLE);
415 USETW(req.wIndex, USLCOM_PORT_NO);
416 USETW(req.wLength, 0);
417
418 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
419 &req, NULL, 0, 1000)) {
420 DPRINTF("UART enable failed (ignored)\n");
421 }
422
423 /* start polling status */
424 uslcom_watchdog(sc);
425 }
426
427 static void
uslcom_close(struct ucom_softc * ucom)428 uslcom_close(struct ucom_softc *ucom)
429 {
430 struct uslcom_softc *sc = ucom->sc_parent;
431 struct usb_device_request req;
432
433 /* stop polling status */
434 usb_callout_stop(&sc->sc_watchdog);
435
436 req.bmRequestType = USLCOM_WRITE;
437 req.bRequest = USLCOM_UART;
438 USETW(req.wValue, USLCOM_UART_DISABLE);
439 USETW(req.wIndex, USLCOM_PORT_NO);
440 USETW(req.wLength, 0);
441
442 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
443 &req, NULL, 0, 1000)) {
444 DPRINTF("UART disable failed (ignored)\n");
445 }
446 }
447
448 static void
uslcom_set_dtr(struct ucom_softc * ucom,uint8_t onoff)449 uslcom_set_dtr(struct ucom_softc *ucom, uint8_t onoff)
450 {
451 struct uslcom_softc *sc = ucom->sc_parent;
452 struct usb_device_request req;
453 uint16_t ctl;
454
455 DPRINTF("onoff = %d\n", onoff);
456
457 ctl = onoff ? USLCOM_CTRL_DTR_ON : 0;
458 ctl |= USLCOM_CTRL_DTR_SET;
459
460 req.bmRequestType = USLCOM_WRITE;
461 req.bRequest = USLCOM_CTRL;
462 USETW(req.wValue, ctl);
463 USETW(req.wIndex, USLCOM_PORT_NO);
464 USETW(req.wLength, 0);
465
466 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
467 &req, NULL, 0, 1000)) {
468 DPRINTF("Setting DTR failed (ignored)\n");
469 }
470 }
471
472 static void
uslcom_set_rts(struct ucom_softc * ucom,uint8_t onoff)473 uslcom_set_rts(struct ucom_softc *ucom, uint8_t onoff)
474 {
475 struct uslcom_softc *sc = ucom->sc_parent;
476 struct usb_device_request req;
477 uint16_t ctl;
478
479 DPRINTF("onoff = %d\n", onoff);
480
481 ctl = onoff ? USLCOM_CTRL_RTS_ON : 0;
482 ctl |= USLCOM_CTRL_RTS_SET;
483
484 req.bmRequestType = USLCOM_WRITE;
485 req.bRequest = USLCOM_CTRL;
486 USETW(req.wValue, ctl);
487 USETW(req.wIndex, USLCOM_PORT_NO);
488 USETW(req.wLength, 0);
489
490 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
491 &req, NULL, 0, 1000)) {
492 DPRINTF("Setting DTR failed (ignored)\n");
493 }
494 }
495
496 static int
uslcom_pre_param(struct ucom_softc * ucom,struct termios * t)497 uslcom_pre_param(struct ucom_softc *ucom, struct termios *t)
498 {
499 if (t->c_ospeed <= 0 || t->c_ospeed > 921600)
500 return (EINVAL);
501 return (0);
502 }
503
504 static void
uslcom_param(struct ucom_softc * ucom,struct termios * t)505 uslcom_param(struct ucom_softc *ucom, struct termios *t)
506 {
507 struct uslcom_softc *sc = ucom->sc_parent;
508 struct usb_device_request req;
509 uint32_t flowctrl[4];
510 uint16_t data;
511
512 DPRINTF("\n");
513
514 req.bmRequestType = USLCOM_WRITE;
515 req.bRequest = USLCOM_BAUD_RATE;
516 USETW(req.wValue, USLCOM_BAUD_REF / t->c_ospeed);
517 USETW(req.wIndex, USLCOM_PORT_NO);
518 USETW(req.wLength, 0);
519
520 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
521 &req, NULL, 0, 1000)) {
522 DPRINTF("Set baudrate failed (ignored)\n");
523 }
524
525 if (t->c_cflag & CSTOPB)
526 data = USLCOM_STOP_BITS_2;
527 else
528 data = USLCOM_STOP_BITS_1;
529 if (t->c_cflag & PARENB) {
530 if (t->c_cflag & PARODD)
531 data |= USLCOM_PARITY_ODD;
532 else
533 data |= USLCOM_PARITY_EVEN;
534 } else
535 data |= USLCOM_PARITY_NONE;
536 switch (t->c_cflag & CSIZE) {
537 case CS5:
538 data |= USLCOM_SET_DATA_BITS(5);
539 break;
540 case CS6:
541 data |= USLCOM_SET_DATA_BITS(6);
542 break;
543 case CS7:
544 data |= USLCOM_SET_DATA_BITS(7);
545 break;
546 case CS8:
547 data |= USLCOM_SET_DATA_BITS(8);
548 break;
549 }
550
551 req.bmRequestType = USLCOM_WRITE;
552 req.bRequest = USLCOM_DATA;
553 USETW(req.wValue, data);
554 USETW(req.wIndex, USLCOM_PORT_NO);
555 USETW(req.wLength, 0);
556
557 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
558 &req, NULL, 0, 1000)) {
559 DPRINTF("Set format failed (ignored)\n");
560 }
561
562 if (t->c_cflag & CRTSCTS) {
563 flowctrl[0] = htole32(USLCOM_FLOW_DTR_ON | USLCOM_FLOW_CTS_HS);
564 flowctrl[1] = htole32(USLCOM_FLOW_RTS_HS);
565 flowctrl[2] = 0;
566 flowctrl[3] = 0;
567 } else {
568 flowctrl[0] = htole32(USLCOM_FLOW_DTR_ON);
569 flowctrl[1] = htole32(USLCOM_FLOW_RTS_ON);
570 flowctrl[2] = 0;
571 flowctrl[3] = 0;
572 }
573 req.bmRequestType = USLCOM_WRITE;
574 req.bRequest = USLCOM_SET_FLOWCTRL;
575 USETW(req.wValue, 0);
576 USETW(req.wIndex, USLCOM_PORT_NO);
577 USETW(req.wLength, sizeof(flowctrl));
578
579 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
580 &req, flowctrl, 0, 1000)) {
581 DPRINTF("Set flowcontrol failed (ignored)\n");
582 }
583 }
584
585 static void
uslcom_get_status(struct ucom_softc * ucom,uint8_t * lsr,uint8_t * msr)586 uslcom_get_status(struct ucom_softc *ucom, uint8_t *lsr, uint8_t *msr)
587 {
588 struct uslcom_softc *sc = ucom->sc_parent;
589
590 DPRINTF("\n");
591
592 *lsr = sc->sc_lsr;
593 *msr = sc->sc_msr;
594 }
595
596 static void
uslcom_set_break(struct ucom_softc * ucom,uint8_t onoff)597 uslcom_set_break(struct ucom_softc *ucom, uint8_t onoff)
598 {
599 struct uslcom_softc *sc = ucom->sc_parent;
600 struct usb_device_request req;
601 uint16_t brk = onoff ? USLCOM_BREAK_ON : USLCOM_BREAK_OFF;
602
603 req.bmRequestType = USLCOM_WRITE;
604 req.bRequest = USLCOM_BREAK;
605 USETW(req.wValue, brk);
606 USETW(req.wIndex, USLCOM_PORT_NO);
607 USETW(req.wLength, 0);
608
609 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
610 &req, NULL, 0, 1000)) {
611 DPRINTF("Set BREAK failed (ignored)\n");
612 }
613 }
614
615 static int
uslcom_ioctl(struct ucom_softc * ucom,uint32_t cmd,caddr_t data,int flag,struct thread * td)616 uslcom_ioctl(struct ucom_softc *ucom, uint32_t cmd, caddr_t data,
617 int flag, struct thread *td)
618 {
619 struct uslcom_softc *sc = ucom->sc_parent;
620 struct usb_device_request req;
621 int error = 0;
622 uint8_t latch;
623
624 DPRINTF("cmd=0x%08x\n", cmd);
625
626 switch (cmd) {
627 case USB_GET_GPIO:
628 req.bmRequestType = USLCOM_READ;
629 req.bRequest = USLCOM_VENDOR_SPECIFIC;
630 USETW(req.wValue, USLCOM_READ_LATCH);
631 USETW(req.wIndex, 0);
632 USETW(req.wLength, sizeof(latch));
633
634 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
635 &req, &latch, 0, 1000)) {
636 DPRINTF("Get LATCH failed\n");
637 error = EIO;
638 }
639 *(int *)data = latch;
640 break;
641
642 case USB_SET_GPIO:
643 req.bmRequestType = USLCOM_WRITE;
644 req.bRequest = USLCOM_VENDOR_SPECIFIC;
645 USETW(req.wValue, USLCOM_WRITE_LATCH);
646 USETW(req.wIndex, (*(int *)data));
647 USETW(req.wLength, 0);
648
649 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
650 &req, NULL, 0, 1000)) {
651 DPRINTF("Set LATCH failed\n");
652 error = EIO;
653 }
654 break;
655
656 default:
657 DPRINTF("Unknown IOCTL\n");
658 error = ENOIOCTL;
659 break;
660 }
661 return (error);
662 }
663
664 static void
uslcom_write_callback(struct usb_xfer * xfer,usb_error_t error)665 uslcom_write_callback(struct usb_xfer *xfer, usb_error_t error)
666 {
667 struct uslcom_softc *sc = usbd_xfer_softc(xfer);
668 struct usb_page_cache *pc;
669 uint32_t actlen;
670
671 switch (USB_GET_STATE(xfer)) {
672 case USB_ST_SETUP:
673 case USB_ST_TRANSFERRED:
674 tr_setup:
675 pc = usbd_xfer_get_frame(xfer, 0);
676 if (ucom_get_data(&sc->sc_ucom, pc, 0,
677 USLCOM_BULK_BUF_SIZE, &actlen)) {
678
679 DPRINTF("actlen = %d\n", actlen);
680
681 usbd_xfer_set_frame_len(xfer, 0, actlen);
682 usbd_transfer_submit(xfer);
683 }
684 return;
685
686 default: /* Error */
687 if (error != USB_ERR_CANCELLED) {
688 /* try to clear stall first */
689 usbd_xfer_set_stall(xfer);
690 goto tr_setup;
691 }
692 return;
693 }
694 }
695
696 static void
uslcom_read_callback(struct usb_xfer * xfer,usb_error_t error)697 uslcom_read_callback(struct usb_xfer *xfer, usb_error_t error)
698 {
699 struct uslcom_softc *sc = usbd_xfer_softc(xfer);
700 struct usb_page_cache *pc;
701 int actlen;
702
703 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
704
705 switch (USB_GET_STATE(xfer)) {
706 case USB_ST_TRANSFERRED:
707 pc = usbd_xfer_get_frame(xfer, 0);
708 ucom_put_data(&sc->sc_ucom, pc, 0, actlen);
709
710 case USB_ST_SETUP:
711 tr_setup:
712 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
713 usbd_transfer_submit(xfer);
714 return;
715
716 default: /* Error */
717 if (error != USB_ERR_CANCELLED) {
718 /* try to clear stall first */
719 usbd_xfer_set_stall(xfer);
720 goto tr_setup;
721 }
722 return;
723 }
724 }
725
726 static void
uslcom_control_callback(struct usb_xfer * xfer,usb_error_t error)727 uslcom_control_callback(struct usb_xfer *xfer, usb_error_t error)
728 {
729 struct uslcom_softc *sc = usbd_xfer_softc(xfer);
730 struct usb_page_cache *pc;
731 struct usb_device_request req;
732 uint8_t msr = 0;
733 uint8_t buf;
734
735 switch (USB_GET_STATE(xfer)) {
736 case USB_ST_TRANSFERRED:
737 pc = usbd_xfer_get_frame(xfer, 1);
738 usbd_copy_out(pc, 0, &buf, sizeof(buf));
739 if (buf & USLCOM_CTRL_CTS)
740 msr |= SER_CTS;
741 if (buf & USLCOM_CTRL_DSR)
742 msr |= SER_DSR;
743 if (buf & USLCOM_CTRL_RI)
744 msr |= SER_RI;
745 if (buf & USLCOM_CTRL_DCD)
746 msr |= SER_DCD;
747
748 if (msr != sc->sc_msr) {
749 DPRINTF("status change msr=0x%02x "
750 "(was 0x%02x)\n", msr, sc->sc_msr);
751 sc->sc_msr = msr;
752 ucom_status_change(&sc->sc_ucom);
753 }
754 break;
755
756 case USB_ST_SETUP:
757 req.bmRequestType = USLCOM_READ;
758 req.bRequest = USLCOM_RCTRL;
759 USETW(req.wValue, 0);
760 USETW(req.wIndex, USLCOM_PORT_NO);
761 USETW(req.wLength, sizeof(buf));
762
763 usbd_xfer_set_frames(xfer, 2);
764 usbd_xfer_set_frame_len(xfer, 0, sizeof(req));
765 usbd_xfer_set_frame_len(xfer, 1, sizeof(buf));
766
767 pc = usbd_xfer_get_frame(xfer, 0);
768 usbd_copy_in(pc, 0, &req, sizeof(req));
769 usbd_transfer_submit(xfer);
770 break;
771
772 default: /* error */
773 if (error != USB_ERR_CANCELLED)
774 DPRINTF("error=%s\n", usbd_errstr(error));
775 break;
776 }
777 }
778
779 static void
uslcom_start_read(struct ucom_softc * ucom)780 uslcom_start_read(struct ucom_softc *ucom)
781 {
782 struct uslcom_softc *sc = ucom->sc_parent;
783
784 /* start read endpoint */
785 usbd_transfer_start(sc->sc_xfer[USLCOM_BULK_DT_RD]);
786 }
787
788 static void
uslcom_stop_read(struct ucom_softc * ucom)789 uslcom_stop_read(struct ucom_softc *ucom)
790 {
791 struct uslcom_softc *sc = ucom->sc_parent;
792
793 /* stop read endpoint */
794 usbd_transfer_stop(sc->sc_xfer[USLCOM_BULK_DT_RD]);
795 }
796
797 static void
uslcom_start_write(struct ucom_softc * ucom)798 uslcom_start_write(struct ucom_softc *ucom)
799 {
800 struct uslcom_softc *sc = ucom->sc_parent;
801
802 usbd_transfer_start(sc->sc_xfer[USLCOM_BULK_DT_WR]);
803 }
804
805 static void
uslcom_stop_write(struct ucom_softc * ucom)806 uslcom_stop_write(struct ucom_softc *ucom)
807 {
808 struct uslcom_softc *sc = ucom->sc_parent;
809
810 usbd_transfer_stop(sc->sc_xfer[USLCOM_BULK_DT_WR]);
811 }
812
813 static void
uslcom_poll(struct ucom_softc * ucom)814 uslcom_poll(struct ucom_softc *ucom)
815 {
816 struct uslcom_softc *sc = ucom->sc_parent;
817 usbd_transfer_poll(sc->sc_xfer, USLCOM_N_TRANSFER);
818 }
819