uslcom.c revision 227309
1/* $OpenBSD: uslcom.c,v 1.17 2007/11/24 10:52:12 jsg Exp $ */ 2 3#include <sys/cdefs.h> 4__FBSDID("$FreeBSD: head/sys/dev/usb/serial/uslcom.c 227309 2011-11-07 15:43:11Z ed $"); 5 6/* 7 * Copyright (c) 2006 Jonathan Gray <jsg@openbsd.org> 8 * 9 * Permission to use, copy, modify, and distribute this software for any 10 * purpose with or without fee is hereby granted, provided that the above 11 * copyright notice and this permission notice appear in all copies. 12 * 13 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 14 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 15 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 16 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 17 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 18 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 19 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 20 */ 21 22#include <sys/stdint.h> 23#include <sys/stddef.h> 24#include <sys/param.h> 25#include <sys/queue.h> 26#include <sys/types.h> 27#include <sys/systm.h> 28#include <sys/kernel.h> 29#include <sys/bus.h> 30#include <sys/module.h> 31#include <sys/lock.h> 32#include <sys/mutex.h> 33#include <sys/condvar.h> 34#include <sys/sysctl.h> 35#include <sys/sx.h> 36#include <sys/unistd.h> 37#include <sys/callout.h> 38#include <sys/malloc.h> 39#include <sys/priv.h> 40 41#include <dev/usb/usb.h> 42#include <dev/usb/usbdi.h> 43#include <dev/usb/usbdi_util.h> 44#include "usbdevs.h" 45 46#define USB_DEBUG_VAR uslcom_debug 47#include <dev/usb/usb_debug.h> 48#include <dev/usb/usb_process.h> 49 50#include <dev/usb/serial/usb_serial.h> 51 52#ifdef USB_DEBUG 53static int uslcom_debug = 0; 54 55static SYSCTL_NODE(_hw_usb, OID_AUTO, uslcom, CTLFLAG_RW, 0, "USB uslcom"); 56SYSCTL_INT(_hw_usb_uslcom, OID_AUTO, debug, CTLFLAG_RW, 57 &uslcom_debug, 0, "Debug level"); 58#endif 59 60#define USLCOM_BULK_BUF_SIZE 1024 61#define USLCOM_CONFIG_INDEX 0 62#define USLCOM_IFACE_INDEX 0 63 64#define USLCOM_SET_DATA_BITS(x) ((x) << 8) 65 66/* Request types */ 67#define USLCOM_WRITE 0x41 68#define USLCOM_READ 0xc1 69 70/* Request codes */ 71#define USLCOM_UART 0x00 72#define USLCOM_BAUD_RATE 0x01 73#define USLCOM_DATA 0x03 74#define USLCOM_BREAK 0x05 75#define USLCOM_CTRL 0x07 76#define USLCOM_RCTRL 0x08 77#define USLCOM_SET_FLOWCTRL 0x13 78 79/* USLCOM_UART values */ 80#define USLCOM_UART_DISABLE 0x00 81#define USLCOM_UART_ENABLE 0x01 82 83/* USLCOM_CTRL/USLCOM_RCTRL values */ 84#define USLCOM_CTRL_DTR_ON 0x0001 85#define USLCOM_CTRL_DTR_SET 0x0100 86#define USLCOM_CTRL_RTS_ON 0x0002 87#define USLCOM_CTRL_RTS_SET 0x0200 88#define USLCOM_CTRL_CTS 0x0010 89#define USLCOM_CTRL_DSR 0x0020 90#define USLCOM_CTRL_RI 0x0040 91#define USLCOM_CTRL_DCD 0x0080 92 93/* USLCOM_BAUD_RATE values */ 94#define USLCOM_BAUD_REF 0x384000 95 96/* USLCOM_DATA values */ 97#define USLCOM_STOP_BITS_1 0x00 98#define USLCOM_STOP_BITS_2 0x02 99#define USLCOM_PARITY_NONE 0x00 100#define USLCOM_PARITY_ODD 0x10 101#define USLCOM_PARITY_EVEN 0x20 102 103#define USLCOM_PORT_NO 0xFFFF /* XXX think this should be 0 --hps */ 104 105/* USLCOM_BREAK values */ 106#define USLCOM_BREAK_OFF 0x00 107#define USLCOM_BREAK_ON 0x01 108 109/* USLCOM_SET_FLOWCTRL values - 1st word */ 110#define USLCOM_FLOW_DTR_ON 0x00000001 111#define USLCOM_FLOW_CTS_HS 0x00000008 /* CTS handshake */ 112#define USLCOM_FLOW_RESERVED 0xFFFFFF80 113/* USLCOM_SET_FLOWCTRL values - 2nd word */ 114#define USLCOM_FLOW_RTS_ON 0x00000040 115#define USLCOM_FLOW_RTS_HS 0x00000080 /* RTS handshake */ 116 117enum { 118 USLCOM_BULK_DT_WR, 119 USLCOM_BULK_DT_RD, 120 USLCOM_CTRL_DT_RD, 121 USLCOM_N_TRANSFER, 122}; 123 124struct uslcom_softc { 125 struct ucom_super_softc sc_super_ucom; 126 struct ucom_softc sc_ucom; 127 128 struct usb_xfer *sc_xfer[USLCOM_N_TRANSFER]; 129 struct usb_device *sc_udev; 130 struct mtx sc_mtx; 131 132 uint8_t sc_msr; 133 uint8_t sc_lsr; 134}; 135 136static device_probe_t uslcom_probe; 137static device_attach_t uslcom_attach; 138static device_detach_t uslcom_detach; 139 140static usb_callback_t uslcom_write_callback; 141static usb_callback_t uslcom_read_callback; 142static usb_callback_t uslcom_control_callback; 143 144static void uslcom_open(struct ucom_softc *); 145static void uslcom_close(struct ucom_softc *); 146static void uslcom_set_dtr(struct ucom_softc *, uint8_t); 147static void uslcom_set_rts(struct ucom_softc *, uint8_t); 148static void uslcom_set_break(struct ucom_softc *, uint8_t); 149static int uslcom_pre_param(struct ucom_softc *, struct termios *); 150static void uslcom_param(struct ucom_softc *, struct termios *); 151static void uslcom_get_status(struct ucom_softc *, uint8_t *, uint8_t *); 152static void uslcom_start_read(struct ucom_softc *); 153static void uslcom_stop_read(struct ucom_softc *); 154static void uslcom_start_write(struct ucom_softc *); 155static void uslcom_stop_write(struct ucom_softc *); 156static void uslcom_poll(struct ucom_softc *ucom); 157 158static const struct usb_config uslcom_config[USLCOM_N_TRANSFER] = { 159 160 [USLCOM_BULK_DT_WR] = { 161 .type = UE_BULK, 162 .endpoint = UE_ADDR_ANY, 163 .direction = UE_DIR_OUT, 164 .bufsize = USLCOM_BULK_BUF_SIZE, 165 .flags = {.pipe_bof = 1,}, 166 .callback = &uslcom_write_callback, 167 }, 168 169 [USLCOM_BULK_DT_RD] = { 170 .type = UE_BULK, 171 .endpoint = UE_ADDR_ANY, 172 .direction = UE_DIR_IN, 173 .bufsize = USLCOM_BULK_BUF_SIZE, 174 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 175 .callback = &uslcom_read_callback, 176 }, 177 [USLCOM_CTRL_DT_RD] = { 178 .type = UE_CONTROL, 179 .endpoint = 0x00, 180 .direction = UE_DIR_ANY, 181 .interval = 150, /* poll status every 150 ms */ 182 .bufsize = sizeof(struct usb_device_request) + 8, 183 .flags = {.pipe_bof = 1,}, 184 .callback = &uslcom_control_callback, 185 .timeout = 1000, /* 1 second timeout */ 186 }, 187}; 188 189static struct ucom_callback uslcom_callback = { 190 .ucom_cfg_open = &uslcom_open, 191 .ucom_cfg_close = &uslcom_close, 192 .ucom_cfg_get_status = &uslcom_get_status, 193 .ucom_cfg_set_dtr = &uslcom_set_dtr, 194 .ucom_cfg_set_rts = &uslcom_set_rts, 195 .ucom_cfg_set_break = &uslcom_set_break, 196 .ucom_cfg_param = &uslcom_param, 197 .ucom_pre_param = &uslcom_pre_param, 198 .ucom_start_read = &uslcom_start_read, 199 .ucom_stop_read = &uslcom_stop_read, 200 .ucom_start_write = &uslcom_start_write, 201 .ucom_stop_write = &uslcom_stop_write, 202 .ucom_poll = &uslcom_poll, 203}; 204 205static const STRUCT_USB_HOST_ID uslcom_devs[] = { 206#define USLCOM_DEV(v,p) { USB_VP(USB_VENDOR_##v, USB_PRODUCT_##v##_##p) } 207 USLCOM_DEV(BALTECH, CARDREADER), 208 USLCOM_DEV(CLIPSAL, 5500PCU), 209 USLCOM_DEV(DATAAPEX, MULTICOM), 210 USLCOM_DEV(DELL, DW700), 211 USLCOM_DEV(DIGIANSWER, ZIGBEE802154), 212 USLCOM_DEV(DYNASTREAM, ANTDEVBOARD), 213 USLCOM_DEV(DYNASTREAM, ANTDEVBOARD2), 214 USLCOM_DEV(DYNASTREAM, ANT2USB), 215 USLCOM_DEV(ELV, USBI2C), 216 USLCOM_DEV(FOXCONN, PIRELLI_DP_L10), 217 USLCOM_DEV(FOXCONN, TCOM_TC_300), 218 USLCOM_DEV(GEMALTO, PROXPU), 219 USLCOM_DEV(JABLOTRON, PC60B), 220 USLCOM_DEV(MEI, CASHFLOW_SC), 221 USLCOM_DEV(MEI, S2000), 222 USLCOM_DEV(JABLOTRON, PC60B), 223 USLCOM_DEV(OWEN, AC4), 224 USLCOM_DEV(PHILIPS, ACE1001), 225 USLCOM_DEV(PLX, CA42), 226 USLCOM_DEV(RENESAS, RX610), 227 USLCOM_DEV(SILABS, AEROCOMM), 228 USLCOM_DEV(SILABS, AMBER_AMB2560), 229 USLCOM_DEV(SILABS, ARGUSISP), 230 USLCOM_DEV(SILABS, ARKHAM_DS101_A), 231 USLCOM_DEV(SILABS, ARKHAM_DS101_M), 232 USLCOM_DEV(SILABS, ARYGON_MIFARE), 233 USLCOM_DEV(SILABS, AVIT_USB_TTL), 234 USLCOM_DEV(SILABS, B_G_H3000), 235 USLCOM_DEV(SILABS, BALLUFF_RFID), 236 USLCOM_DEV(SILABS, BEI_VCP), 237 USLCOM_DEV(SILABS, BSM7DUSB), 238 USLCOM_DEV(SILABS, BURNSIDE), 239 USLCOM_DEV(SILABS, C2_EDGE_MODEM), 240 USLCOM_DEV(SILABS, CP2102), 241 USLCOM_DEV(SILABS, CP210X_2), 242 USLCOM_DEV(SILABS, CRUMB128), 243 USLCOM_DEV(SILABS, CYGNAL), 244 USLCOM_DEV(SILABS, CYGNAL_DEBUG), 245 USLCOM_DEV(SILABS, CYGNAL_GPS), 246 USLCOM_DEV(SILABS, DEGREE), 247 USLCOM_DEV(SILABS, EMS_C1007), 248 USLCOM_DEV(SILABS, HELICOM), 249 USLCOM_DEV(SILABS, IMS_USB_RS422), 250 USLCOM_DEV(SILABS, INFINITY_MIC), 251 USLCOM_DEV(SILABS, INSYS_MODEM), 252 USLCOM_DEV(SILABS, KYOCERA_GPS), 253 USLCOM_DEV(SILABS, LIPOWSKY_HARP), 254 USLCOM_DEV(SILABS, LIPOWSKY_JTAG), 255 USLCOM_DEV(SILABS, LIPOWSKY_LIN), 256 USLCOM_DEV(SILABS, MC35PU), 257 USLCOM_DEV(SILABS, MJS_TOSLINK), 258 USLCOM_DEV(SILABS, MSD_DASHHAWK), 259 USLCOM_DEV(SILABS, POLOLU), 260 USLCOM_DEV(SILABS, PROCYON_AVS), 261 USLCOM_DEV(SILABS, SB_PARAMOUNT_ME), 262 USLCOM_DEV(SILABS, SUUNTO), 263 USLCOM_DEV(SILABS, TAMSMASTER), 264 USLCOM_DEV(SILABS, TELEGESYS_ETRX2), 265 USLCOM_DEV(SILABS, TRACIENT), 266 USLCOM_DEV(SILABS, TRAQMATE), 267 USLCOM_DEV(SILABS, USBCOUNT50), 268 USLCOM_DEV(SILABS, USBPULSE100), 269 USLCOM_DEV(SILABS, USBSCOPE50), 270 USLCOM_DEV(SILABS, USBWAVE12), 271 USLCOM_DEV(SILABS, VSTABI), 272 USLCOM_DEV(SILABS, WAVIT), 273 USLCOM_DEV(SILABS, WMRBATT), 274 USLCOM_DEV(SILABS, WMRRIGBLASTER), 275 USLCOM_DEV(SILABS, WMRRIGTALK), 276 USLCOM_DEV(SILABS, ZEPHYR_BIO), 277 USLCOM_DEV(SILABS2, DCU11CLONE), 278 USLCOM_DEV(SILABS3, GPRS_MODEM), 279 USLCOM_DEV(SILABS4, 100EU_MODEM), 280 USLCOM_DEV(SYNTECH, CYPHERLAB100), 281 USLCOM_DEV(USI, MC60), 282 USLCOM_DEV(VAISALA, CABLE), 283 USLCOM_DEV(WAGO, SERVICECABLE), 284 USLCOM_DEV(WAVESENSE, JAZZ), 285 USLCOM_DEV(WIENERPLEINBAUS, PL512), 286 USLCOM_DEV(WIENERPLEINBAUS, RCM), 287 USLCOM_DEV(WIENERPLEINBAUS, MPOD), 288 USLCOM_DEV(WIENERPLEINBAUS, CML), 289#undef USLCOM_DEV 290}; 291 292static device_method_t uslcom_methods[] = { 293 DEVMETHOD(device_probe, uslcom_probe), 294 DEVMETHOD(device_attach, uslcom_attach), 295 DEVMETHOD(device_detach, uslcom_detach), 296 {0, 0} 297}; 298 299static devclass_t uslcom_devclass; 300 301static driver_t uslcom_driver = { 302 .name = "uslcom", 303 .methods = uslcom_methods, 304 .size = sizeof(struct uslcom_softc), 305}; 306 307DRIVER_MODULE(uslcom, uhub, uslcom_driver, uslcom_devclass, NULL, 0); 308MODULE_DEPEND(uslcom, ucom, 1, 1, 1); 309MODULE_DEPEND(uslcom, usb, 1, 1, 1); 310MODULE_VERSION(uslcom, 1); 311 312static int 313uslcom_probe(device_t dev) 314{ 315 struct usb_attach_arg *uaa = device_get_ivars(dev); 316 317 DPRINTFN(11, "\n"); 318 319 if (uaa->usb_mode != USB_MODE_HOST) { 320 return (ENXIO); 321 } 322 if (uaa->info.bConfigIndex != USLCOM_CONFIG_INDEX) { 323 return (ENXIO); 324 } 325 if (uaa->info.bIfaceIndex != USLCOM_IFACE_INDEX) { 326 return (ENXIO); 327 } 328 return (usbd_lookup_id_by_uaa(uslcom_devs, sizeof(uslcom_devs), uaa)); 329} 330 331static int 332uslcom_attach(device_t dev) 333{ 334 struct usb_attach_arg *uaa = device_get_ivars(dev); 335 struct uslcom_softc *sc = device_get_softc(dev); 336 int error; 337 338 DPRINTFN(11, "\n"); 339 340 device_set_usb_desc(dev); 341 mtx_init(&sc->sc_mtx, "uslcom", NULL, MTX_DEF); 342 343 sc->sc_udev = uaa->device; 344 345 error = usbd_transfer_setup(uaa->device, 346 &uaa->info.bIfaceIndex, sc->sc_xfer, uslcom_config, 347 USLCOM_N_TRANSFER, sc, &sc->sc_mtx); 348 if (error) { 349 DPRINTF("one or more missing USB endpoints, " 350 "error=%s\n", usbd_errstr(error)); 351 goto detach; 352 } 353 /* clear stall at first run */ 354 mtx_lock(&sc->sc_mtx); 355 usbd_xfer_set_stall(sc->sc_xfer[USLCOM_BULK_DT_WR]); 356 usbd_xfer_set_stall(sc->sc_xfer[USLCOM_BULK_DT_RD]); 357 mtx_unlock(&sc->sc_mtx); 358 359 error = ucom_attach(&sc->sc_super_ucom, &sc->sc_ucom, 1, sc, 360 &uslcom_callback, &sc->sc_mtx); 361 if (error) { 362 goto detach; 363 } 364 ucom_set_pnpinfo_usb(&sc->sc_super_ucom, dev); 365 366 return (0); 367 368detach: 369 uslcom_detach(dev); 370 return (ENXIO); 371} 372 373static int 374uslcom_detach(device_t dev) 375{ 376 struct uslcom_softc *sc = device_get_softc(dev); 377 378 DPRINTF("sc=%p\n", sc); 379 380 ucom_detach(&sc->sc_super_ucom, &sc->sc_ucom); 381 usbd_transfer_unsetup(sc->sc_xfer, USLCOM_N_TRANSFER); 382 mtx_destroy(&sc->sc_mtx); 383 384 return (0); 385} 386 387static void 388uslcom_open(struct ucom_softc *ucom) 389{ 390 struct uslcom_softc *sc = ucom->sc_parent; 391 struct usb_device_request req; 392 393 req.bmRequestType = USLCOM_WRITE; 394 req.bRequest = USLCOM_UART; 395 USETW(req.wValue, USLCOM_UART_ENABLE); 396 USETW(req.wIndex, USLCOM_PORT_NO); 397 USETW(req.wLength, 0); 398 399 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 400 &req, NULL, 0, 1000)) { 401 DPRINTF("UART enable failed (ignored)\n"); 402 } 403 /* Start polling status */ 404 usbd_transfer_start(sc->sc_xfer[USLCOM_CTRL_DT_RD]); 405} 406 407static void 408uslcom_close(struct ucom_softc *ucom) 409{ 410 struct uslcom_softc *sc = ucom->sc_parent; 411 struct usb_device_request req; 412 413 /* Stop polling status */ 414 usbd_transfer_stop(sc->sc_xfer[USLCOM_CTRL_DT_RD]); 415 416 req.bmRequestType = USLCOM_WRITE; 417 req.bRequest = USLCOM_UART; 418 USETW(req.wValue, USLCOM_UART_DISABLE); 419 USETW(req.wIndex, USLCOM_PORT_NO); 420 USETW(req.wLength, 0); 421 422 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 423 &req, NULL, 0, 1000)) { 424 DPRINTF("UART disable failed (ignored)\n"); 425 } 426} 427 428static void 429uslcom_set_dtr(struct ucom_softc *ucom, uint8_t onoff) 430{ 431 struct uslcom_softc *sc = ucom->sc_parent; 432 struct usb_device_request req; 433 uint16_t ctl; 434 435 DPRINTF("onoff = %d\n", onoff); 436 437 ctl = onoff ? USLCOM_CTRL_DTR_ON : 0; 438 ctl |= USLCOM_CTRL_DTR_SET; 439 440 req.bmRequestType = USLCOM_WRITE; 441 req.bRequest = USLCOM_CTRL; 442 USETW(req.wValue, ctl); 443 USETW(req.wIndex, USLCOM_PORT_NO); 444 USETW(req.wLength, 0); 445 446 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 447 &req, NULL, 0, 1000)) { 448 DPRINTF("Setting DTR failed (ignored)\n"); 449 } 450} 451 452static void 453uslcom_set_rts(struct ucom_softc *ucom, uint8_t onoff) 454{ 455 struct uslcom_softc *sc = ucom->sc_parent; 456 struct usb_device_request req; 457 uint16_t ctl; 458 459 DPRINTF("onoff = %d\n", onoff); 460 461 ctl = onoff ? USLCOM_CTRL_RTS_ON : 0; 462 ctl |= USLCOM_CTRL_RTS_SET; 463 464 req.bmRequestType = USLCOM_WRITE; 465 req.bRequest = USLCOM_CTRL; 466 USETW(req.wValue, ctl); 467 USETW(req.wIndex, USLCOM_PORT_NO); 468 USETW(req.wLength, 0); 469 470 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 471 &req, NULL, 0, 1000)) { 472 DPRINTF("Setting DTR failed (ignored)\n"); 473 } 474} 475 476static int 477uslcom_pre_param(struct ucom_softc *ucom, struct termios *t) 478{ 479 if (t->c_ospeed <= 0 || t->c_ospeed > 921600) 480 return (EINVAL); 481 return (0); 482} 483 484static void 485uslcom_param(struct ucom_softc *ucom, struct termios *t) 486{ 487 struct uslcom_softc *sc = ucom->sc_parent; 488 struct usb_device_request req; 489 uint32_t flowctrl[4]; 490 uint16_t data; 491 492 DPRINTF("\n"); 493 494 req.bmRequestType = USLCOM_WRITE; 495 req.bRequest = USLCOM_BAUD_RATE; 496 USETW(req.wValue, USLCOM_BAUD_REF / t->c_ospeed); 497 USETW(req.wIndex, USLCOM_PORT_NO); 498 USETW(req.wLength, 0); 499 500 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 501 &req, NULL, 0, 1000)) { 502 DPRINTF("Set baudrate failed (ignored)\n"); 503 } 504 505 if (t->c_cflag & CSTOPB) 506 data = USLCOM_STOP_BITS_2; 507 else 508 data = USLCOM_STOP_BITS_1; 509 if (t->c_cflag & PARENB) { 510 if (t->c_cflag & PARODD) 511 data |= USLCOM_PARITY_ODD; 512 else 513 data |= USLCOM_PARITY_EVEN; 514 } else 515 data |= USLCOM_PARITY_NONE; 516 switch (t->c_cflag & CSIZE) { 517 case CS5: 518 data |= USLCOM_SET_DATA_BITS(5); 519 break; 520 case CS6: 521 data |= USLCOM_SET_DATA_BITS(6); 522 break; 523 case CS7: 524 data |= USLCOM_SET_DATA_BITS(7); 525 break; 526 case CS8: 527 data |= USLCOM_SET_DATA_BITS(8); 528 break; 529 } 530 531 req.bmRequestType = USLCOM_WRITE; 532 req.bRequest = USLCOM_DATA; 533 USETW(req.wValue, data); 534 USETW(req.wIndex, USLCOM_PORT_NO); 535 USETW(req.wLength, 0); 536 537 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 538 &req, NULL, 0, 1000)) { 539 DPRINTF("Set format failed (ignored)\n"); 540 } 541 542 if (t->c_cflag & CRTSCTS) { 543 flowctrl[0] = htole32(USLCOM_FLOW_RESERVED | 544 USLCOM_FLOW_DTR_ON | USLCOM_FLOW_CTS_HS); 545 flowctrl[1] = htole32(USLCOM_FLOW_RTS_HS); 546 flowctrl[2] = 0; 547 flowctrl[3] = 0; 548 } else { 549 flowctrl[0] = htole32(USLCOM_FLOW_RESERVED | 550 USLCOM_FLOW_DTR_ON); 551 flowctrl[1] = htole32(USLCOM_FLOW_RTS_ON); 552 flowctrl[2] = 0; 553 flowctrl[3] = 0; 554 } 555 req.bmRequestType = USLCOM_WRITE; 556 req.bRequest = USLCOM_SET_FLOWCTRL; 557 USETW(req.wValue, 0); 558 USETW(req.wIndex, USLCOM_PORT_NO); 559 USETW(req.wLength, sizeof(flowctrl)); 560 561 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 562 &req, flowctrl, 0, 1000)) { 563 DPRINTF("Set flowcontrol failed (ignored)\n"); 564 } 565} 566 567static void 568uslcom_get_status(struct ucom_softc *ucom, uint8_t *lsr, uint8_t *msr) 569{ 570 struct uslcom_softc *sc = ucom->sc_parent; 571 572 DPRINTF("\n"); 573 574 *lsr = sc->sc_lsr; 575 *msr = sc->sc_msr; 576} 577 578static void 579uslcom_set_break(struct ucom_softc *ucom, uint8_t onoff) 580{ 581 struct uslcom_softc *sc = ucom->sc_parent; 582 struct usb_device_request req; 583 uint16_t brk = onoff ? USLCOM_BREAK_ON : USLCOM_BREAK_OFF; 584 585 req.bmRequestType = USLCOM_WRITE; 586 req.bRequest = USLCOM_BREAK; 587 USETW(req.wValue, brk); 588 USETW(req.wIndex, USLCOM_PORT_NO); 589 USETW(req.wLength, 0); 590 591 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 592 &req, NULL, 0, 1000)) { 593 DPRINTF("Set BREAK failed (ignored)\n"); 594 } 595} 596 597static void 598uslcom_write_callback(struct usb_xfer *xfer, usb_error_t error) 599{ 600 struct uslcom_softc *sc = usbd_xfer_softc(xfer); 601 struct usb_page_cache *pc; 602 uint32_t actlen; 603 604 switch (USB_GET_STATE(xfer)) { 605 case USB_ST_SETUP: 606 case USB_ST_TRANSFERRED: 607tr_setup: 608 pc = usbd_xfer_get_frame(xfer, 0); 609 if (ucom_get_data(&sc->sc_ucom, pc, 0, 610 USLCOM_BULK_BUF_SIZE, &actlen)) { 611 612 DPRINTF("actlen = %d\n", actlen); 613 614 usbd_xfer_set_frame_len(xfer, 0, actlen); 615 usbd_transfer_submit(xfer); 616 } 617 return; 618 619 default: /* Error */ 620 if (error != USB_ERR_CANCELLED) { 621 /* try to clear stall first */ 622 usbd_xfer_set_stall(xfer); 623 goto tr_setup; 624 } 625 return; 626 } 627} 628 629static void 630uslcom_read_callback(struct usb_xfer *xfer, usb_error_t error) 631{ 632 struct uslcom_softc *sc = usbd_xfer_softc(xfer); 633 struct usb_page_cache *pc; 634 int actlen; 635 636 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 637 638 switch (USB_GET_STATE(xfer)) { 639 case USB_ST_TRANSFERRED: 640 pc = usbd_xfer_get_frame(xfer, 0); 641 ucom_put_data(&sc->sc_ucom, pc, 0, actlen); 642 643 case USB_ST_SETUP: 644tr_setup: 645 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 646 usbd_transfer_submit(xfer); 647 return; 648 649 default: /* Error */ 650 if (error != USB_ERR_CANCELLED) { 651 /* try to clear stall first */ 652 usbd_xfer_set_stall(xfer); 653 goto tr_setup; 654 } 655 return; 656 } 657} 658 659static void 660uslcom_control_callback(struct usb_xfer *xfer, usb_error_t error) 661{ 662 struct uslcom_softc *sc = usbd_xfer_softc(xfer); 663 struct usb_page_cache *pc; 664 struct usb_device_request req; 665 uint8_t msr = 0; 666 uint8_t buf; 667 668 switch (USB_GET_STATE(xfer)) { 669 case USB_ST_TRANSFERRED: 670 pc = usbd_xfer_get_frame(xfer, 1); 671 usbd_copy_out(pc, 0, &buf, sizeof(buf)); 672 if (buf & USLCOM_CTRL_CTS) 673 msr |= SER_CTS; 674 if (buf & USLCOM_CTRL_DSR) 675 msr |= SER_DSR; 676 if (buf & USLCOM_CTRL_RI) 677 msr |= SER_RI; 678 if (buf & USLCOM_CTRL_DCD) 679 msr |= SER_DCD; 680 681 if (msr != sc->sc_msr) { 682 DPRINTF("status change msr=0x%02x " 683 "(was 0x%02x)\n", msr, sc->sc_msr); 684 sc->sc_msr = msr; 685 ucom_status_change(&sc->sc_ucom); 686 } 687 688 /* FALLTHROUGH */ 689 690 case USB_ST_SETUP: 691tr_setup: 692 req.bmRequestType = USLCOM_READ; 693 req.bRequest = USLCOM_RCTRL; 694 USETW(req.wValue, 0); 695 USETW(req.wIndex, 0); 696 USETW(req.wLength, sizeof(buf)); 697 698 usbd_xfer_set_frames(xfer, 2); 699 usbd_xfer_set_frame_len(xfer, 0, sizeof(req)); 700 usbd_xfer_set_frame_len(xfer, 1, sizeof(buf)); 701 702 pc = usbd_xfer_get_frame(xfer, 0); 703 usbd_copy_in(pc, 0, &req, sizeof(req)); 704 usbd_transfer_submit(xfer); 705 break; 706 707 default: /* error */ 708 if (error != USB_ERR_CANCELLED) { 709 DPRINTF("error=%s\n", usbd_errstr(error)); 710 goto tr_setup; 711 } 712 break; 713 } 714} 715 716static void 717uslcom_start_read(struct ucom_softc *ucom) 718{ 719 struct uslcom_softc *sc = ucom->sc_parent; 720 721 /* start read endpoint */ 722 usbd_transfer_start(sc->sc_xfer[USLCOM_BULK_DT_RD]); 723} 724 725static void 726uslcom_stop_read(struct ucom_softc *ucom) 727{ 728 struct uslcom_softc *sc = ucom->sc_parent; 729 730 /* stop read endpoint */ 731 usbd_transfer_stop(sc->sc_xfer[USLCOM_BULK_DT_RD]); 732} 733 734static void 735uslcom_start_write(struct ucom_softc *ucom) 736{ 737 struct uslcom_softc *sc = ucom->sc_parent; 738 739 usbd_transfer_start(sc->sc_xfer[USLCOM_BULK_DT_WR]); 740} 741 742static void 743uslcom_stop_write(struct ucom_softc *ucom) 744{ 745 struct uslcom_softc *sc = ucom->sc_parent; 746 747 usbd_transfer_stop(sc->sc_xfer[USLCOM_BULK_DT_WR]); 748} 749 750static void 751uslcom_poll(struct ucom_softc *ucom) 752{ 753 struct uslcom_softc *sc = ucom->sc_parent; 754 usbd_transfer_poll(sc->sc_xfer, USLCOM_N_TRANSFER); 755} 756