1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2002, Alexander Kabaev <kan.FreeBSD.org>.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29 #include <sys/cdefs.h>
30 /*-
31 * Copyright (c) 2001 The NetBSD Foundation, Inc.
32 * All rights reserved.
33 *
34 * This code is derived from software contributed to The NetBSD Foundation
35 * by Ichiro FUKUHARA (ichiro@ichiro.org).
36 *
37 * Redistribution and use in source and binary forms, with or without
38 * modification, are permitted provided that the following conditions
39 * are met:
40 * 1. Redistributions of source code must retain the above copyright
41 * notice, this list of conditions and the following disclaimer.
42 * 2. Redistributions in binary form must reproduce the above copyright
43 * notice, this list of conditions and the following disclaimer in the
44 * documentation and/or other materials provided with the distribution.
45 *
46 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
47 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
48 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
49 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
50 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
51 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
52 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
53 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
54 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
55 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
56 * POSSIBILITY OF SUCH DAMAGE.
57 */
58
59 #include <sys/stdint.h>
60 #include <sys/stddef.h>
61 #include <sys/param.h>
62 #include <sys/queue.h>
63 #include <sys/types.h>
64 #include <sys/systm.h>
65 #include <sys/kernel.h>
66 #include <sys/bus.h>
67 #include <sys/module.h>
68 #include <sys/lock.h>
69 #include <sys/mutex.h>
70 #include <sys/condvar.h>
71 #include <sys/sysctl.h>
72 #include <sys/sx.h>
73 #include <sys/unistd.h>
74 #include <sys/callout.h>
75 #include <sys/malloc.h>
76 #include <sys/priv.h>
77
78 #include <dev/usb/usb.h>
79 #include <dev/usb/usbdi.h>
80 #include <dev/usb/usbdi_util.h>
81 #include "usbdevs.h"
82
83 #define USB_DEBUG_VAR ubsa_debug
84 #include <dev/usb/usb_debug.h>
85 #include <dev/usb/usb_process.h>
86
87 #include <dev/usb/serial/usb_serial.h>
88
89 #ifdef USB_DEBUG
90 static int ubsa_debug = 0;
91
92 static SYSCTL_NODE(_hw_usb, OID_AUTO, ubsa, CTLFLAG_RW | CTLFLAG_MPSAFE, 0,
93 "USB ubsa");
94 SYSCTL_INT(_hw_usb_ubsa, OID_AUTO, debug, CTLFLAG_RWTUN,
95 &ubsa_debug, 0, "ubsa debug level");
96 #endif
97
98 #define UBSA_BSIZE 1024 /* bytes */
99
100 #define UBSA_CONFIG_INDEX 0
101 #define UBSA_IFACE_INDEX 0
102
103 #define UBSA_REG_BAUDRATE 0x00
104 #define UBSA_REG_STOP_BITS 0x01
105 #define UBSA_REG_DATA_BITS 0x02
106 #define UBSA_REG_PARITY 0x03
107 #define UBSA_REG_DTR 0x0A
108 #define UBSA_REG_RTS 0x0B
109 #define UBSA_REG_BREAK 0x0C
110 #define UBSA_REG_FLOW_CTRL 0x10
111
112 #define UBSA_PARITY_NONE 0x00
113 #define UBSA_PARITY_EVEN 0x01
114 #define UBSA_PARITY_ODD 0x02
115 #define UBSA_PARITY_MARK 0x03
116 #define UBSA_PARITY_SPACE 0x04
117
118 #define UBSA_FLOW_NONE 0x0000
119 #define UBSA_FLOW_OCTS 0x0001
120 #define UBSA_FLOW_ODSR 0x0002
121 #define UBSA_FLOW_IDSR 0x0004
122 #define UBSA_FLOW_IDTR 0x0008
123 #define UBSA_FLOW_IRTS 0x0010
124 #define UBSA_FLOW_ORTS 0x0020
125 #define UBSA_FLOW_UNKNOWN 0x0040
126 #define UBSA_FLOW_OXON 0x0080
127 #define UBSA_FLOW_IXON 0x0100
128
129 /* line status register */
130 #define UBSA_LSR_TSRE 0x40 /* Transmitter empty: byte sent */
131 #define UBSA_LSR_TXRDY 0x20 /* Transmitter buffer empty */
132 #define UBSA_LSR_BI 0x10 /* Break detected */
133 #define UBSA_LSR_FE 0x08 /* Framing error: bad stop bit */
134 #define UBSA_LSR_PE 0x04 /* Parity error */
135 #define UBSA_LSR_OE 0x02 /* Overrun, lost incoming byte */
136 #define UBSA_LSR_RXRDY 0x01 /* Byte ready in Receive Buffer */
137 #define UBSA_LSR_RCV_MASK 0x1f /* Mask for incoming data or error */
138
139 /* modem status register */
140 /* All deltas are from the last read of the MSR. */
141 #define UBSA_MSR_DCD 0x80 /* Current Data Carrier Detect */
142 #define UBSA_MSR_RI 0x40 /* Current Ring Indicator */
143 #define UBSA_MSR_DSR 0x20 /* Current Data Set Ready */
144 #define UBSA_MSR_CTS 0x10 /* Current Clear to Send */
145 #define UBSA_MSR_DDCD 0x08 /* DCD has changed state */
146 #define UBSA_MSR_TERI 0x04 /* RI has toggled low to high */
147 #define UBSA_MSR_DDSR 0x02 /* DSR has changed state */
148 #define UBSA_MSR_DCTS 0x01 /* CTS has changed state */
149
150 enum {
151 UBSA_BULK_DT_WR,
152 UBSA_BULK_DT_RD,
153 UBSA_INTR_DT_RD,
154 UBSA_N_TRANSFER,
155 };
156
157 struct ubsa_softc {
158 struct ucom_super_softc sc_super_ucom;
159 struct ucom_softc sc_ucom;
160
161 struct usb_xfer *sc_xfer[UBSA_N_TRANSFER];
162 struct usb_device *sc_udev;
163 struct mtx sc_mtx;
164
165 uint8_t sc_iface_no; /* interface number */
166 uint8_t sc_iface_index; /* interface index */
167 uint8_t sc_lsr; /* local status register */
168 uint8_t sc_msr; /* UBSA status register */
169 };
170
171 static device_probe_t ubsa_probe;
172 static device_attach_t ubsa_attach;
173 static device_detach_t ubsa_detach;
174 static void ubsa_free_softc(struct ubsa_softc *);
175
176 static usb_callback_t ubsa_write_callback;
177 static usb_callback_t ubsa_read_callback;
178 static usb_callback_t ubsa_intr_callback;
179
180 static void ubsa_cfg_request(struct ubsa_softc *, uint8_t, uint16_t);
181 static void ubsa_free(struct ucom_softc *);
182 static void ubsa_cfg_set_dtr(struct ucom_softc *, uint8_t);
183 static void ubsa_cfg_set_rts(struct ucom_softc *, uint8_t);
184 static void ubsa_cfg_set_break(struct ucom_softc *, uint8_t);
185 static int ubsa_pre_param(struct ucom_softc *, struct termios *);
186 static void ubsa_cfg_param(struct ucom_softc *, struct termios *);
187 static void ubsa_start_read(struct ucom_softc *);
188 static void ubsa_stop_read(struct ucom_softc *);
189 static void ubsa_start_write(struct ucom_softc *);
190 static void ubsa_stop_write(struct ucom_softc *);
191 static void ubsa_cfg_get_status(struct ucom_softc *, uint8_t *,
192 uint8_t *);
193 static void ubsa_poll(struct ucom_softc *ucom);
194
195 static const struct usb_config ubsa_config[UBSA_N_TRANSFER] = {
196 [UBSA_BULK_DT_WR] = {
197 .type = UE_BULK,
198 .endpoint = UE_ADDR_ANY,
199 .direction = UE_DIR_OUT,
200 .bufsize = UBSA_BSIZE, /* bytes */
201 .flags = {.pipe_bof = 1,.force_short_xfer = 1,},
202 .callback = &ubsa_write_callback,
203 },
204
205 [UBSA_BULK_DT_RD] = {
206 .type = UE_BULK,
207 .endpoint = UE_ADDR_ANY,
208 .direction = UE_DIR_IN,
209 .bufsize = UBSA_BSIZE, /* bytes */
210 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
211 .callback = &ubsa_read_callback,
212 },
213
214 [UBSA_INTR_DT_RD] = {
215 .type = UE_INTERRUPT,
216 .endpoint = UE_ADDR_ANY,
217 .direction = UE_DIR_IN,
218 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
219 .bufsize = 0, /* use wMaxPacketSize */
220 .callback = &ubsa_intr_callback,
221 },
222 };
223
224 static const struct ucom_callback ubsa_callback = {
225 .ucom_cfg_get_status = &ubsa_cfg_get_status,
226 .ucom_cfg_set_dtr = &ubsa_cfg_set_dtr,
227 .ucom_cfg_set_rts = &ubsa_cfg_set_rts,
228 .ucom_cfg_set_break = &ubsa_cfg_set_break,
229 .ucom_cfg_param = &ubsa_cfg_param,
230 .ucom_pre_param = &ubsa_pre_param,
231 .ucom_start_read = &ubsa_start_read,
232 .ucom_stop_read = &ubsa_stop_read,
233 .ucom_start_write = &ubsa_start_write,
234 .ucom_stop_write = &ubsa_stop_write,
235 .ucom_poll = &ubsa_poll,
236 .ucom_free = &ubsa_free,
237 };
238
239 static const STRUCT_USB_HOST_ID ubsa_devs[] = {
240 /* AnyData ADU-500A */
241 {USB_VPI(USB_VENDOR_ANYDATA, USB_PRODUCT_ANYDATA_ADU_500A, 0)},
242 /* AnyData ADU-E100A/H */
243 {USB_VPI(USB_VENDOR_ANYDATA, USB_PRODUCT_ANYDATA_ADU_E100X, 0)},
244 /* Axesstel MV100H */
245 {USB_VPI(USB_VENDOR_AXESSTEL, USB_PRODUCT_AXESSTEL_DATAMODEM, 0)},
246 /* BELKIN F5U103 */
247 {USB_VPI(USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_F5U103, 0)},
248 /* BELKIN F5U120 */
249 {USB_VPI(USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_F5U120, 0)},
250 /* GoHubs GO-COM232 */
251 {USB_VPI(USB_VENDOR_ETEK, USB_PRODUCT_ETEK_1COM, 0)},
252 /* GoHubs GO-COM232 */
253 {USB_VPI(USB_VENDOR_GOHUBS, USB_PRODUCT_GOHUBS_GOCOM232, 0)},
254 /* Peracom */
255 {USB_VPI(USB_VENDOR_PERACOM, USB_PRODUCT_PERACOM_SERIAL1, 0)},
256 };
257
258 static device_method_t ubsa_methods[] = {
259 DEVMETHOD(device_probe, ubsa_probe),
260 DEVMETHOD(device_attach, ubsa_attach),
261 DEVMETHOD(device_detach, ubsa_detach),
262 DEVMETHOD_END
263 };
264
265 static driver_t ubsa_driver = {
266 .name = "ubsa",
267 .methods = ubsa_methods,
268 .size = sizeof(struct ubsa_softc),
269 };
270
271 DRIVER_MODULE(ubsa, uhub, ubsa_driver, NULL, NULL);
272 MODULE_DEPEND(ubsa, ucom, 1, 1, 1);
273 MODULE_DEPEND(ubsa, usb, 1, 1, 1);
274 MODULE_VERSION(ubsa, 1);
275 USB_PNP_HOST_INFO(ubsa_devs);
276
277 static int
ubsa_probe(device_t dev)278 ubsa_probe(device_t dev)
279 {
280 struct usb_attach_arg *uaa = device_get_ivars(dev);
281
282 if (uaa->usb_mode != USB_MODE_HOST) {
283 return (ENXIO);
284 }
285 if (uaa->info.bConfigIndex != UBSA_CONFIG_INDEX) {
286 return (ENXIO);
287 }
288 if (uaa->info.bIfaceIndex != UBSA_IFACE_INDEX) {
289 return (ENXIO);
290 }
291 return (usbd_lookup_id_by_uaa(ubsa_devs, sizeof(ubsa_devs), uaa));
292 }
293
294 static int
ubsa_attach(device_t dev)295 ubsa_attach(device_t dev)
296 {
297 struct usb_attach_arg *uaa = device_get_ivars(dev);
298 struct ubsa_softc *sc = device_get_softc(dev);
299 int error;
300
301 DPRINTF("sc=%p\n", sc);
302
303 device_set_usb_desc(dev);
304 mtx_init(&sc->sc_mtx, "ubsa", NULL, MTX_DEF);
305 ucom_ref(&sc->sc_super_ucom);
306
307 sc->sc_udev = uaa->device;
308 sc->sc_iface_no = uaa->info.bIfaceNum;
309 sc->sc_iface_index = UBSA_IFACE_INDEX;
310
311 error = usbd_transfer_setup(uaa->device, &sc->sc_iface_index,
312 sc->sc_xfer, ubsa_config, UBSA_N_TRANSFER, sc, &sc->sc_mtx);
313
314 if (error) {
315 DPRINTF("could not allocate all pipes\n");
316 goto detach;
317 }
318 /* clear stall at first run */
319 mtx_lock(&sc->sc_mtx);
320 usbd_xfer_set_stall(sc->sc_xfer[UBSA_BULK_DT_WR]);
321 usbd_xfer_set_stall(sc->sc_xfer[UBSA_BULK_DT_RD]);
322 mtx_unlock(&sc->sc_mtx);
323
324 error = ucom_attach(&sc->sc_super_ucom, &sc->sc_ucom, 1, sc,
325 &ubsa_callback, &sc->sc_mtx);
326 if (error) {
327 DPRINTF("ucom_attach failed\n");
328 goto detach;
329 }
330 ucom_set_pnpinfo_usb(&sc->sc_super_ucom, dev);
331
332 return (0);
333
334 detach:
335 ubsa_detach(dev);
336 return (ENXIO);
337 }
338
339 static int
ubsa_detach(device_t dev)340 ubsa_detach(device_t dev)
341 {
342 struct ubsa_softc *sc = device_get_softc(dev);
343
344 DPRINTF("sc=%p\n", sc);
345
346 ucom_detach(&sc->sc_super_ucom, &sc->sc_ucom);
347 usbd_transfer_unsetup(sc->sc_xfer, UBSA_N_TRANSFER);
348
349 device_claim_softc(dev);
350
351 ubsa_free_softc(sc);
352
353 return (0);
354 }
355
356 UCOM_UNLOAD_DRAIN(ubsa);
357
358 static void
ubsa_free_softc(struct ubsa_softc * sc)359 ubsa_free_softc(struct ubsa_softc *sc)
360 {
361 if (ucom_unref(&sc->sc_super_ucom)) {
362 mtx_destroy(&sc->sc_mtx);
363 device_free_softc(sc);
364 }
365 }
366
367 static void
ubsa_free(struct ucom_softc * ucom)368 ubsa_free(struct ucom_softc *ucom)
369 {
370 ubsa_free_softc(ucom->sc_parent);
371 }
372
373 static void
ubsa_cfg_request(struct ubsa_softc * sc,uint8_t index,uint16_t value)374 ubsa_cfg_request(struct ubsa_softc *sc, uint8_t index, uint16_t value)
375 {
376 struct usb_device_request req;
377 usb_error_t err;
378
379 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
380 req.bRequest = index;
381 USETW(req.wValue, value);
382 req.wIndex[0] = sc->sc_iface_no;
383 req.wIndex[1] = 0;
384 USETW(req.wLength, 0);
385
386 err = ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
387 &req, NULL, 0, 1000);
388 if (err) {
389 DPRINTFN(0, "device request failed, err=%s "
390 "(ignored)\n", usbd_errstr(err));
391 }
392 }
393
394 static void
ubsa_cfg_set_dtr(struct ucom_softc * ucom,uint8_t onoff)395 ubsa_cfg_set_dtr(struct ucom_softc *ucom, uint8_t onoff)
396 {
397 struct ubsa_softc *sc = ucom->sc_parent;
398
399 DPRINTF("onoff = %d\n", onoff);
400
401 ubsa_cfg_request(sc, UBSA_REG_DTR, onoff ? 1 : 0);
402 }
403
404 static void
ubsa_cfg_set_rts(struct ucom_softc * ucom,uint8_t onoff)405 ubsa_cfg_set_rts(struct ucom_softc *ucom, uint8_t onoff)
406 {
407 struct ubsa_softc *sc = ucom->sc_parent;
408
409 DPRINTF("onoff = %d\n", onoff);
410
411 ubsa_cfg_request(sc, UBSA_REG_RTS, onoff ? 1 : 0);
412 }
413
414 static void
ubsa_cfg_set_break(struct ucom_softc * ucom,uint8_t onoff)415 ubsa_cfg_set_break(struct ucom_softc *ucom, uint8_t onoff)
416 {
417 struct ubsa_softc *sc = ucom->sc_parent;
418
419 DPRINTF("onoff = %d\n", onoff);
420
421 ubsa_cfg_request(sc, UBSA_REG_BREAK, onoff ? 1 : 0);
422 }
423
424 static int
ubsa_pre_param(struct ucom_softc * ucom,struct termios * t)425 ubsa_pre_param(struct ucom_softc *ucom, struct termios *t)
426 {
427
428 DPRINTF("sc = %p\n", ucom->sc_parent);
429
430 switch (t->c_ospeed) {
431 case B0:
432 case B300:
433 case B600:
434 case B1200:
435 case B2400:
436 case B4800:
437 case B9600:
438 case B19200:
439 case B38400:
440 case B57600:
441 case B115200:
442 case B230400:
443 break;
444 default:
445 return (EINVAL);
446 }
447 return (0);
448 }
449
450 static void
ubsa_cfg_param(struct ucom_softc * ucom,struct termios * t)451 ubsa_cfg_param(struct ucom_softc *ucom, struct termios *t)
452 {
453 struct ubsa_softc *sc = ucom->sc_parent;
454 uint16_t value = 0;
455
456 DPRINTF("sc = %p\n", sc);
457
458 switch (t->c_ospeed) {
459 case B0:
460 ubsa_cfg_request(sc, UBSA_REG_FLOW_CTRL, 0);
461 ubsa_cfg_set_dtr(&sc->sc_ucom, 0);
462 ubsa_cfg_set_rts(&sc->sc_ucom, 0);
463 break;
464 case B300:
465 case B600:
466 case B1200:
467 case B2400:
468 case B4800:
469 case B9600:
470 case B19200:
471 case B38400:
472 case B57600:
473 case B115200:
474 case B230400:
475 value = B230400 / t->c_ospeed;
476 ubsa_cfg_request(sc, UBSA_REG_BAUDRATE, value);
477 break;
478 default:
479 return;
480 }
481
482 if (t->c_cflag & PARENB)
483 value = (t->c_cflag & PARODD) ? UBSA_PARITY_ODD : UBSA_PARITY_EVEN;
484 else
485 value = UBSA_PARITY_NONE;
486
487 ubsa_cfg_request(sc, UBSA_REG_PARITY, value);
488
489 switch (t->c_cflag & CSIZE) {
490 case CS5:
491 value = 0;
492 break;
493 case CS6:
494 value = 1;
495 break;
496 case CS7:
497 value = 2;
498 break;
499 default:
500 case CS8:
501 value = 3;
502 break;
503 }
504
505 ubsa_cfg_request(sc, UBSA_REG_DATA_BITS, value);
506
507 value = (t->c_cflag & CSTOPB) ? 1 : 0;
508
509 ubsa_cfg_request(sc, UBSA_REG_STOP_BITS, value);
510
511 value = 0;
512 if (t->c_cflag & CRTSCTS)
513 value |= UBSA_FLOW_OCTS | UBSA_FLOW_IRTS;
514
515 if (t->c_iflag & (IXON | IXOFF))
516 value |= UBSA_FLOW_OXON | UBSA_FLOW_IXON;
517
518 ubsa_cfg_request(sc, UBSA_REG_FLOW_CTRL, value);
519 }
520
521 static void
ubsa_start_read(struct ucom_softc * ucom)522 ubsa_start_read(struct ucom_softc *ucom)
523 {
524 struct ubsa_softc *sc = ucom->sc_parent;
525
526 /* start interrupt endpoint */
527 usbd_transfer_start(sc->sc_xfer[UBSA_INTR_DT_RD]);
528
529 /* start read endpoint */
530 usbd_transfer_start(sc->sc_xfer[UBSA_BULK_DT_RD]);
531 }
532
533 static void
ubsa_stop_read(struct ucom_softc * ucom)534 ubsa_stop_read(struct ucom_softc *ucom)
535 {
536 struct ubsa_softc *sc = ucom->sc_parent;
537
538 /* stop interrupt endpoint */
539 usbd_transfer_stop(sc->sc_xfer[UBSA_INTR_DT_RD]);
540
541 /* stop read endpoint */
542 usbd_transfer_stop(sc->sc_xfer[UBSA_BULK_DT_RD]);
543 }
544
545 static void
ubsa_start_write(struct ucom_softc * ucom)546 ubsa_start_write(struct ucom_softc *ucom)
547 {
548 struct ubsa_softc *sc = ucom->sc_parent;
549
550 usbd_transfer_start(sc->sc_xfer[UBSA_BULK_DT_WR]);
551 }
552
553 static void
ubsa_stop_write(struct ucom_softc * ucom)554 ubsa_stop_write(struct ucom_softc *ucom)
555 {
556 struct ubsa_softc *sc = ucom->sc_parent;
557
558 usbd_transfer_stop(sc->sc_xfer[UBSA_BULK_DT_WR]);
559 }
560
561 static void
ubsa_cfg_get_status(struct ucom_softc * ucom,uint8_t * lsr,uint8_t * msr)562 ubsa_cfg_get_status(struct ucom_softc *ucom, uint8_t *lsr, uint8_t *msr)
563 {
564 struct ubsa_softc *sc = ucom->sc_parent;
565
566 DPRINTF("\n");
567
568 *lsr = sc->sc_lsr;
569 *msr = sc->sc_msr;
570 }
571
572 static void
ubsa_write_callback(struct usb_xfer * xfer,usb_error_t error)573 ubsa_write_callback(struct usb_xfer *xfer, usb_error_t error)
574 {
575 struct ubsa_softc *sc = usbd_xfer_softc(xfer);
576 struct usb_page_cache *pc;
577 uint32_t actlen;
578
579 switch (USB_GET_STATE(xfer)) {
580 case USB_ST_SETUP:
581 case USB_ST_TRANSFERRED:
582 tr_setup:
583 pc = usbd_xfer_get_frame(xfer, 0);
584 if (ucom_get_data(&sc->sc_ucom, pc, 0,
585 UBSA_BSIZE, &actlen)) {
586 usbd_xfer_set_frame_len(xfer, 0, actlen);
587 usbd_transfer_submit(xfer);
588 }
589 return;
590
591 default: /* Error */
592 if (error != USB_ERR_CANCELLED) {
593 /* try to clear stall first */
594 usbd_xfer_set_stall(xfer);
595 goto tr_setup;
596 }
597 return;
598 }
599 }
600
601 static void
ubsa_read_callback(struct usb_xfer * xfer,usb_error_t error)602 ubsa_read_callback(struct usb_xfer *xfer, usb_error_t error)
603 {
604 struct ubsa_softc *sc = usbd_xfer_softc(xfer);
605 struct usb_page_cache *pc;
606 int actlen;
607
608 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
609
610 switch (USB_GET_STATE(xfer)) {
611 case USB_ST_TRANSFERRED:
612 pc = usbd_xfer_get_frame(xfer, 0);
613 ucom_put_data(&sc->sc_ucom, pc, 0, actlen);
614
615 case USB_ST_SETUP:
616 tr_setup:
617 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
618 usbd_transfer_submit(xfer);
619 return;
620
621 default: /* Error */
622 if (error != USB_ERR_CANCELLED) {
623 /* try to clear stall first */
624 usbd_xfer_set_stall(xfer);
625 goto tr_setup;
626 }
627 return;
628 }
629 }
630
631 static void
ubsa_intr_callback(struct usb_xfer * xfer,usb_error_t error)632 ubsa_intr_callback(struct usb_xfer *xfer, usb_error_t error)
633 {
634 struct ubsa_softc *sc = usbd_xfer_softc(xfer);
635 struct usb_page_cache *pc;
636 uint8_t buf[4];
637 int actlen;
638
639 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
640
641 switch (USB_GET_STATE(xfer)) {
642 case USB_ST_TRANSFERRED:
643
644 if (actlen >= (int)sizeof(buf)) {
645 pc = usbd_xfer_get_frame(xfer, 0);
646 usbd_copy_out(pc, 0, buf, sizeof(buf));
647
648 /*
649 * MSR bits need translation from ns16550 to SER_* values.
650 * LSR bits are ns16550 in hardware and ucom.
651 */
652 sc->sc_msr = 0;
653 if (buf[3] & UBSA_MSR_CTS)
654 sc->sc_msr |= SER_CTS;
655 if (buf[3] & UBSA_MSR_DCD)
656 sc->sc_msr |= SER_DCD;
657 if (buf[3] & UBSA_MSR_RI)
658 sc->sc_msr |= SER_RI;
659 if (buf[3] & UBSA_MSR_DSR)
660 sc->sc_msr |= SER_DSR;
661 sc->sc_lsr = buf[2];
662
663 DPRINTF("lsr = 0x%02x, msr = 0x%02x\n",
664 sc->sc_lsr, sc->sc_msr);
665
666 ucom_status_change(&sc->sc_ucom);
667 } else {
668 DPRINTF("ignoring short packet, %d bytes\n", actlen);
669 }
670 /* FALLTHROUGH */
671 case USB_ST_SETUP:
672 tr_setup:
673 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
674 usbd_transfer_submit(xfer);
675 return;
676
677 default: /* Error */
678 if (error != USB_ERR_CANCELLED) {
679 /* try to clear stall first */
680 usbd_xfer_set_stall(xfer);
681 goto tr_setup;
682 }
683 return;
684 }
685 }
686
687 static void
ubsa_poll(struct ucom_softc * ucom)688 ubsa_poll(struct ucom_softc *ucom)
689 {
690 struct ubsa_softc *sc = ucom->sc_parent;
691 usbd_transfer_poll(sc->sc_xfer, UBSA_N_TRANSFER);
692
693 }
694