uslcom.c revision 238778
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 238778 2012-07-25 20:46:22Z gavin $"); 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 <dev/usb/usb_ioctl.h> 45#include "usbdevs.h" 46 47#define USB_DEBUG_VAR uslcom_debug 48#include <dev/usb/usb_debug.h> 49#include <dev/usb/usb_process.h> 50 51#include <dev/usb/serial/usb_serial.h> 52 53#ifdef USB_DEBUG 54static int uslcom_debug = 0; 55 56static SYSCTL_NODE(_hw_usb, OID_AUTO, uslcom, CTLFLAG_RW, 0, "USB uslcom"); 57SYSCTL_INT(_hw_usb_uslcom, OID_AUTO, debug, CTLFLAG_RW, 58 &uslcom_debug, 0, "Debug level"); 59#endif 60 61#define USLCOM_BULK_BUF_SIZE 1024 62#define USLCOM_CONFIG_INDEX 0 63#define USLCOM_IFACE_INDEX 0 64 65#define USLCOM_SET_DATA_BITS(x) ((x) << 8) 66 67/* Request types */ 68#define USLCOM_WRITE 0x41 69#define USLCOM_READ 0xc1 70 71/* Request codes */ 72#define USLCOM_UART 0x00 73#define USLCOM_SET_BAUD_DIV 0x01 74#define USLCOM_DATA 0x03 75#define USLCOM_BREAK 0x05 76#define USLCOM_CTRL 0x07 77#define USLCOM_RCTRL 0x08 78#define USLCOM_SET_FLOWCTRL 0x13 79#define USLCOM_SET_BAUD_RATE 0x1e 80#define USLCOM_VENDOR_SPECIFIC 0xff 81 82/* USLCOM_UART values */ 83#define USLCOM_UART_DISABLE 0x00 84#define USLCOM_UART_ENABLE 0x01 85 86/* USLCOM_CTRL/USLCOM_RCTRL values */ 87#define USLCOM_CTRL_DTR_ON 0x0001 88#define USLCOM_CTRL_DTR_SET 0x0100 89#define USLCOM_CTRL_RTS_ON 0x0002 90#define USLCOM_CTRL_RTS_SET 0x0200 91#define USLCOM_CTRL_CTS 0x0010 92#define USLCOM_CTRL_DSR 0x0020 93#define USLCOM_CTRL_RI 0x0040 94#define USLCOM_CTRL_DCD 0x0080 95 96/* USLCOM_SET_BAUD_DIV values */ 97#define USLCOM_BAUD_REF 3686400 /* 3.6864 MHz */ 98 99/* USLCOM_DATA values */ 100#define USLCOM_STOP_BITS_1 0x00 101#define USLCOM_STOP_BITS_2 0x02 102#define USLCOM_PARITY_NONE 0x00 103#define USLCOM_PARITY_ODD 0x10 104#define USLCOM_PARITY_EVEN 0x20 105 106#define USLCOM_PORT_NO 0x0000 107 108/* USLCOM_BREAK values */ 109#define USLCOM_BREAK_OFF 0x00 110#define USLCOM_BREAK_ON 0x01 111 112/* USLCOM_SET_FLOWCTRL values - 1st word */ 113#define USLCOM_FLOW_DTR_ON 0x00000001 /* DTR static active */ 114#define USLCOM_FLOW_CTS_HS 0x00000008 /* CTS handshake */ 115/* USLCOM_SET_FLOWCTRL values - 2nd word */ 116#define USLCOM_FLOW_RTS_ON 0x00000040 /* RTS static active */ 117#define USLCOM_FLOW_RTS_HS 0x00000080 /* RTS handshake */ 118 119/* USLCOM_VENDOR_SPECIFIC values */ 120#define USLCOM_WRITE_LATCH 0x37E1 121#define USLCOM_READ_LATCH 0x00C2 122 123enum { 124 USLCOM_BULK_DT_WR, 125 USLCOM_BULK_DT_RD, 126 USLCOM_CTRL_DT_RD, 127 USLCOM_N_TRANSFER, 128}; 129 130struct uslcom_softc { 131 struct ucom_super_softc sc_super_ucom; 132 struct ucom_softc sc_ucom; 133 struct usb_callout sc_watchdog; 134 135 struct usb_xfer *sc_xfer[USLCOM_N_TRANSFER]; 136 struct usb_device *sc_udev; 137 struct mtx sc_mtx; 138 139 uint8_t sc_msr; 140 uint8_t sc_lsr; 141}; 142 143static device_probe_t uslcom_probe; 144static device_attach_t uslcom_attach; 145static device_detach_t uslcom_detach; 146 147static usb_callback_t uslcom_write_callback; 148static usb_callback_t uslcom_read_callback; 149static usb_callback_t uslcom_control_callback; 150 151static void uslcom_open(struct ucom_softc *); 152static void uslcom_close(struct ucom_softc *); 153static void uslcom_set_dtr(struct ucom_softc *, uint8_t); 154static void uslcom_set_rts(struct ucom_softc *, uint8_t); 155static void uslcom_set_break(struct ucom_softc *, uint8_t); 156static int uslcom_ioctl(struct ucom_softc *, uint32_t, caddr_t, int, 157 struct thread *); 158static int uslcom_pre_param(struct ucom_softc *, struct termios *); 159static void uslcom_param(struct ucom_softc *, struct termios *); 160static void uslcom_get_status(struct ucom_softc *, uint8_t *, uint8_t *); 161static void uslcom_start_read(struct ucom_softc *); 162static void uslcom_stop_read(struct ucom_softc *); 163static void uslcom_start_write(struct ucom_softc *); 164static void uslcom_stop_write(struct ucom_softc *); 165static void uslcom_poll(struct ucom_softc *ucom); 166 167static const struct usb_config uslcom_config[USLCOM_N_TRANSFER] = { 168 169 [USLCOM_BULK_DT_WR] = { 170 .type = UE_BULK, 171 .endpoint = UE_ADDR_ANY, 172 .direction = UE_DIR_OUT, 173 .bufsize = USLCOM_BULK_BUF_SIZE, 174 .flags = {.pipe_bof = 1,}, 175 .callback = &uslcom_write_callback, 176 }, 177 178 [USLCOM_BULK_DT_RD] = { 179 .type = UE_BULK, 180 .endpoint = UE_ADDR_ANY, 181 .direction = UE_DIR_IN, 182 .bufsize = USLCOM_BULK_BUF_SIZE, 183 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 184 .callback = &uslcom_read_callback, 185 }, 186 [USLCOM_CTRL_DT_RD] = { 187 .type = UE_CONTROL, 188 .endpoint = 0x00, 189 .direction = UE_DIR_ANY, 190 .bufsize = sizeof(struct usb_device_request) + 8, 191 .flags = {.pipe_bof = 1,}, 192 .callback = &uslcom_control_callback, 193 .timeout = 1000, /* 1 second timeout */ 194 }, 195}; 196 197static struct ucom_callback uslcom_callback = { 198 .ucom_cfg_open = &uslcom_open, 199 .ucom_cfg_close = &uslcom_close, 200 .ucom_cfg_get_status = &uslcom_get_status, 201 .ucom_cfg_set_dtr = &uslcom_set_dtr, 202 .ucom_cfg_set_rts = &uslcom_set_rts, 203 .ucom_cfg_set_break = &uslcom_set_break, 204 .ucom_ioctl = &uslcom_ioctl, 205 .ucom_cfg_param = &uslcom_param, 206 .ucom_pre_param = &uslcom_pre_param, 207 .ucom_start_read = &uslcom_start_read, 208 .ucom_stop_read = &uslcom_stop_read, 209 .ucom_start_write = &uslcom_start_write, 210 .ucom_stop_write = &uslcom_stop_write, 211 .ucom_poll = &uslcom_poll, 212}; 213 214static const STRUCT_USB_HOST_ID uslcom_devs[] = { 215#define USLCOM_DEV(v,p) { USB_VP(USB_VENDOR_##v, USB_PRODUCT_##v##_##p) } 216 USLCOM_DEV(BALTECH, CARDREADER), 217 USLCOM_DEV(CLIPSAL, 5500PCU), 218 USLCOM_DEV(DATAAPEX, MULTICOM), 219 USLCOM_DEV(DELL, DW700), 220 USLCOM_DEV(DIGIANSWER, ZIGBEE802154), 221 USLCOM_DEV(DYNASTREAM, ANTDEVBOARD), 222 USLCOM_DEV(DYNASTREAM, ANTDEVBOARD2), 223 USLCOM_DEV(DYNASTREAM, ANT2USB), 224 USLCOM_DEV(ELV, USBI2C), 225 USLCOM_DEV(FOXCONN, PIRELLI_DP_L10), 226 USLCOM_DEV(FOXCONN, TCOM_TC_300), 227 USLCOM_DEV(GEMALTO, PROXPU), 228 USLCOM_DEV(JABLOTRON, PC60B), 229 USLCOM_DEV(MEI, CASHFLOW_SC), 230 USLCOM_DEV(MEI, S2000), 231 USLCOM_DEV(JABLOTRON, PC60B), 232 USLCOM_DEV(OWEN, AC4), 233 USLCOM_DEV(PHILIPS, ACE1001), 234 USLCOM_DEV(PLX, CA42), 235 USLCOM_DEV(RENESAS, RX610), 236 USLCOM_DEV(SILABS, AEROCOMM), 237 USLCOM_DEV(SILABS, AMBER_AMB2560), 238 USLCOM_DEV(SILABS, ARGUSISP), 239 USLCOM_DEV(SILABS, ARKHAM_DS101_A), 240 USLCOM_DEV(SILABS, ARKHAM_DS101_M), 241 USLCOM_DEV(SILABS, ARYGON_MIFARE), 242 USLCOM_DEV(SILABS, AVIT_USB_TTL), 243 USLCOM_DEV(SILABS, B_G_H3000), 244 USLCOM_DEV(SILABS, BALLUFF_RFID), 245 USLCOM_DEV(SILABS, BEI_VCP), 246 USLCOM_DEV(SILABS, BSM7DUSB), 247 USLCOM_DEV(SILABS, BURNSIDE), 248 USLCOM_DEV(SILABS, C2_EDGE_MODEM), 249 USLCOM_DEV(SILABS, CP2102), 250 USLCOM_DEV(SILABS, CP210X_2), 251 USLCOM_DEV(SILABS, CRUMB128), 252 USLCOM_DEV(SILABS, CYGNAL), 253 USLCOM_DEV(SILABS, CYGNAL_DEBUG), 254 USLCOM_DEV(SILABS, CYGNAL_GPS), 255 USLCOM_DEV(SILABS, DEGREE), 256 USLCOM_DEV(SILABS, EMS_C1007), 257 USLCOM_DEV(SILABS, HELICOM), 258 USLCOM_DEV(SILABS, IMS_USB_RS422), 259 USLCOM_DEV(SILABS, INFINITY_MIC), 260 USLCOM_DEV(SILABS, INSYS_MODEM), 261 USLCOM_DEV(SILABS, KYOCERA_GPS), 262 USLCOM_DEV(SILABS, LIPOWSKY_HARP), 263 USLCOM_DEV(SILABS, LIPOWSKY_JTAG), 264 USLCOM_DEV(SILABS, LIPOWSKY_LIN), 265 USLCOM_DEV(SILABS, MC35PU), 266 USLCOM_DEV(SILABS, MJS_TOSLINK), 267 USLCOM_DEV(SILABS, MSD_DASHHAWK), 268 USLCOM_DEV(SILABS, POLOLU), 269 USLCOM_DEV(SILABS, PROCYON_AVS), 270 USLCOM_DEV(SILABS, SB_PARAMOUNT_ME), 271 USLCOM_DEV(SILABS, SUUNTO), 272 USLCOM_DEV(SILABS, TAMSMASTER), 273 USLCOM_DEV(SILABS, TELEGESYS_ETRX2), 274 USLCOM_DEV(SILABS, TRACIENT), 275 USLCOM_DEV(SILABS, TRAQMATE), 276 USLCOM_DEV(SILABS, USBCOUNT50), 277 USLCOM_DEV(SILABS, USBPULSE100), 278 USLCOM_DEV(SILABS, USBSCOPE50), 279 USLCOM_DEV(SILABS, USBWAVE12), 280 USLCOM_DEV(SILABS, VSTABI), 281 USLCOM_DEV(SILABS, WAVIT), 282 USLCOM_DEV(SILABS, WMRBATT), 283 USLCOM_DEV(SILABS, WMRRIGBLASTER), 284 USLCOM_DEV(SILABS, WMRRIGTALK), 285 USLCOM_DEV(SILABS, ZEPHYR_BIO), 286 USLCOM_DEV(SILABS2, DCU11CLONE), 287 USLCOM_DEV(SILABS3, GPRS_MODEM), 288 USLCOM_DEV(SILABS4, 100EU_MODEM), 289 USLCOM_DEV(SYNTECH, CYPHERLAB100), 290 USLCOM_DEV(USI, MC60), 291 USLCOM_DEV(VAISALA, CABLE), 292 USLCOM_DEV(WAGO, SERVICECABLE), 293 USLCOM_DEV(WAVESENSE, JAZZ), 294 USLCOM_DEV(WIENERPLEINBAUS, PL512), 295 USLCOM_DEV(WIENERPLEINBAUS, RCM), 296 USLCOM_DEV(WIENERPLEINBAUS, MPOD), 297 USLCOM_DEV(WIENERPLEINBAUS, CML), 298#undef USLCOM_DEV 299}; 300 301static device_method_t uslcom_methods[] = { 302 DEVMETHOD(device_probe, uslcom_probe), 303 DEVMETHOD(device_attach, uslcom_attach), 304 DEVMETHOD(device_detach, uslcom_detach), 305 {0, 0} 306}; 307 308static devclass_t uslcom_devclass; 309 310static driver_t uslcom_driver = { 311 .name = "uslcom", 312 .methods = uslcom_methods, 313 .size = sizeof(struct uslcom_softc), 314}; 315 316DRIVER_MODULE(uslcom, uhub, uslcom_driver, uslcom_devclass, NULL, 0); 317MODULE_DEPEND(uslcom, ucom, 1, 1, 1); 318MODULE_DEPEND(uslcom, usb, 1, 1, 1); 319MODULE_VERSION(uslcom, 1); 320 321static void 322uslcom_watchdog(void *arg) 323{ 324 struct uslcom_softc *sc = arg; 325 326 mtx_assert(&sc->sc_mtx, MA_OWNED); 327 328 usbd_transfer_start(sc->sc_xfer[USLCOM_CTRL_DT_RD]); 329 330 usb_callout_reset(&sc->sc_watchdog, 331 hz / 4, &uslcom_watchdog, sc); 332} 333 334static int 335uslcom_probe(device_t dev) 336{ 337 struct usb_attach_arg *uaa = device_get_ivars(dev); 338 339 DPRINTFN(11, "\n"); 340 341 if (uaa->usb_mode != USB_MODE_HOST) { 342 return (ENXIO); 343 } 344 if (uaa->info.bConfigIndex != USLCOM_CONFIG_INDEX) { 345 return (ENXIO); 346 } 347 if (uaa->info.bIfaceIndex != USLCOM_IFACE_INDEX) { 348 return (ENXIO); 349 } 350 return (usbd_lookup_id_by_uaa(uslcom_devs, sizeof(uslcom_devs), uaa)); 351} 352 353static int 354uslcom_attach(device_t dev) 355{ 356 struct usb_attach_arg *uaa = device_get_ivars(dev); 357 struct uslcom_softc *sc = device_get_softc(dev); 358 int error; 359 360 DPRINTFN(11, "\n"); 361 362 device_set_usb_desc(dev); 363 mtx_init(&sc->sc_mtx, "uslcom", NULL, MTX_DEF); 364 usb_callout_init_mtx(&sc->sc_watchdog, &sc->sc_mtx, 0); 365 366 sc->sc_udev = uaa->device; 367 368 error = usbd_transfer_setup(uaa->device, 369 &uaa->info.bIfaceIndex, sc->sc_xfer, uslcom_config, 370 USLCOM_N_TRANSFER, sc, &sc->sc_mtx); 371 if (error) { 372 DPRINTF("one or more missing USB endpoints, " 373 "error=%s\n", usbd_errstr(error)); 374 goto detach; 375 } 376 /* clear stall at first run */ 377 mtx_lock(&sc->sc_mtx); 378 usbd_xfer_set_stall(sc->sc_xfer[USLCOM_BULK_DT_WR]); 379 usbd_xfer_set_stall(sc->sc_xfer[USLCOM_BULK_DT_RD]); 380 mtx_unlock(&sc->sc_mtx); 381 382 error = ucom_attach(&sc->sc_super_ucom, &sc->sc_ucom, 1, sc, 383 &uslcom_callback, &sc->sc_mtx); 384 if (error) { 385 goto detach; 386 } 387 ucom_set_pnpinfo_usb(&sc->sc_super_ucom, dev); 388 389 return (0); 390 391detach: 392 uslcom_detach(dev); 393 return (ENXIO); 394} 395 396static int 397uslcom_detach(device_t dev) 398{ 399 struct uslcom_softc *sc = device_get_softc(dev); 400 401 DPRINTF("sc=%p\n", sc); 402 403 ucom_detach(&sc->sc_super_ucom, &sc->sc_ucom); 404 usbd_transfer_unsetup(sc->sc_xfer, USLCOM_N_TRANSFER); 405 406 usb_callout_drain(&sc->sc_watchdog); 407 mtx_destroy(&sc->sc_mtx); 408 409 return (0); 410} 411 412static void 413uslcom_open(struct ucom_softc *ucom) 414{ 415 struct uslcom_softc *sc = ucom->sc_parent; 416 struct usb_device_request req; 417 418 req.bmRequestType = USLCOM_WRITE; 419 req.bRequest = USLCOM_UART; 420 USETW(req.wValue, USLCOM_UART_ENABLE); 421 USETW(req.wIndex, USLCOM_PORT_NO); 422 USETW(req.wLength, 0); 423 424 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 425 &req, NULL, 0, 1000)) { 426 DPRINTF("UART enable failed (ignored)\n"); 427 } 428 429 /* start polling status */ 430 uslcom_watchdog(sc); 431} 432 433static void 434uslcom_close(struct ucom_softc *ucom) 435{ 436 struct uslcom_softc *sc = ucom->sc_parent; 437 struct usb_device_request req; 438 439 /* stop polling status */ 440 usb_callout_stop(&sc->sc_watchdog); 441 442 req.bmRequestType = USLCOM_WRITE; 443 req.bRequest = USLCOM_UART; 444 USETW(req.wValue, USLCOM_UART_DISABLE); 445 USETW(req.wIndex, USLCOM_PORT_NO); 446 USETW(req.wLength, 0); 447 448 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 449 &req, NULL, 0, 1000)) { 450 DPRINTF("UART disable failed (ignored)\n"); 451 } 452} 453 454static void 455uslcom_set_dtr(struct ucom_softc *ucom, uint8_t onoff) 456{ 457 struct uslcom_softc *sc = ucom->sc_parent; 458 struct usb_device_request req; 459 uint16_t ctl; 460 461 DPRINTF("onoff = %d\n", onoff); 462 463 ctl = onoff ? USLCOM_CTRL_DTR_ON : 0; 464 ctl |= USLCOM_CTRL_DTR_SET; 465 466 req.bmRequestType = USLCOM_WRITE; 467 req.bRequest = USLCOM_CTRL; 468 USETW(req.wValue, ctl); 469 USETW(req.wIndex, USLCOM_PORT_NO); 470 USETW(req.wLength, 0); 471 472 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 473 &req, NULL, 0, 1000)) { 474 DPRINTF("Setting DTR failed (ignored)\n"); 475 } 476} 477 478static void 479uslcom_set_rts(struct ucom_softc *ucom, uint8_t onoff) 480{ 481 struct uslcom_softc *sc = ucom->sc_parent; 482 struct usb_device_request req; 483 uint16_t ctl; 484 485 DPRINTF("onoff = %d\n", onoff); 486 487 ctl = onoff ? USLCOM_CTRL_RTS_ON : 0; 488 ctl |= USLCOM_CTRL_RTS_SET; 489 490 req.bmRequestType = USLCOM_WRITE; 491 req.bRequest = USLCOM_CTRL; 492 USETW(req.wValue, ctl); 493 USETW(req.wIndex, USLCOM_PORT_NO); 494 USETW(req.wLength, 0); 495 496 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 497 &req, NULL, 0, 1000)) { 498 DPRINTF("Setting DTR failed (ignored)\n"); 499 } 500} 501 502static int 503uslcom_pre_param(struct ucom_softc *ucom, struct termios *t) 504{ 505 if (t->c_ospeed <= 0 || t->c_ospeed > 921600) 506 return (EINVAL); 507 return (0); 508} 509 510static void 511uslcom_param(struct ucom_softc *ucom, struct termios *t) 512{ 513 struct uslcom_softc *sc = ucom->sc_parent; 514 struct usb_device_request req; 515 uint32_t baudrate, flowctrl[4]; 516 uint16_t data; 517 518 DPRINTF("\n"); 519 520 baudrate = t->c_ospeed; 521 req.bmRequestType = USLCOM_WRITE; 522 req.bRequest = USLCOM_SET_BAUD_RATE; 523 USETW(req.wValue, 0); 524 USETW(req.wIndex, USLCOM_PORT_NO); 525 USETW(req.wLength, sizeof(baudrate)); 526 527 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 528 &req, &baudrate, 0, 1000)) { 529 DPRINTF("Set baudrate failed (ignored)\n"); 530 } 531 532 if (t->c_cflag & CSTOPB) 533 data = USLCOM_STOP_BITS_2; 534 else 535 data = USLCOM_STOP_BITS_1; 536 if (t->c_cflag & PARENB) { 537 if (t->c_cflag & PARODD) 538 data |= USLCOM_PARITY_ODD; 539 else 540 data |= USLCOM_PARITY_EVEN; 541 } else 542 data |= USLCOM_PARITY_NONE; 543 switch (t->c_cflag & CSIZE) { 544 case CS5: 545 data |= USLCOM_SET_DATA_BITS(5); 546 break; 547 case CS6: 548 data |= USLCOM_SET_DATA_BITS(6); 549 break; 550 case CS7: 551 data |= USLCOM_SET_DATA_BITS(7); 552 break; 553 case CS8: 554 data |= USLCOM_SET_DATA_BITS(8); 555 break; 556 } 557 558 req.bmRequestType = USLCOM_WRITE; 559 req.bRequest = USLCOM_DATA; 560 USETW(req.wValue, data); 561 USETW(req.wIndex, USLCOM_PORT_NO); 562 USETW(req.wLength, 0); 563 564 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 565 &req, NULL, 0, 1000)) { 566 DPRINTF("Set format failed (ignored)\n"); 567 } 568 569 if (t->c_cflag & CRTSCTS) { 570 flowctrl[0] = htole32(USLCOM_FLOW_DTR_ON | USLCOM_FLOW_CTS_HS); 571 flowctrl[1] = htole32(USLCOM_FLOW_RTS_HS); 572 flowctrl[2] = 0; 573 flowctrl[3] = 0; 574 } else { 575 flowctrl[0] = htole32(USLCOM_FLOW_DTR_ON); 576 flowctrl[1] = htole32(USLCOM_FLOW_RTS_ON); 577 flowctrl[2] = 0; 578 flowctrl[3] = 0; 579 } 580 req.bmRequestType = USLCOM_WRITE; 581 req.bRequest = USLCOM_SET_FLOWCTRL; 582 USETW(req.wValue, 0); 583 USETW(req.wIndex, USLCOM_PORT_NO); 584 USETW(req.wLength, sizeof(flowctrl)); 585 586 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 587 &req, flowctrl, 0, 1000)) { 588 DPRINTF("Set flowcontrol failed (ignored)\n"); 589 } 590} 591 592static void 593uslcom_get_status(struct ucom_softc *ucom, uint8_t *lsr, uint8_t *msr) 594{ 595 struct uslcom_softc *sc = ucom->sc_parent; 596 597 DPRINTF("\n"); 598 599 *lsr = sc->sc_lsr; 600 *msr = sc->sc_msr; 601} 602 603static void 604uslcom_set_break(struct ucom_softc *ucom, uint8_t onoff) 605{ 606 struct uslcom_softc *sc = ucom->sc_parent; 607 struct usb_device_request req; 608 uint16_t brk = onoff ? USLCOM_BREAK_ON : USLCOM_BREAK_OFF; 609 610 req.bmRequestType = USLCOM_WRITE; 611 req.bRequest = USLCOM_BREAK; 612 USETW(req.wValue, brk); 613 USETW(req.wIndex, USLCOM_PORT_NO); 614 USETW(req.wLength, 0); 615 616 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 617 &req, NULL, 0, 1000)) { 618 DPRINTF("Set BREAK failed (ignored)\n"); 619 } 620} 621 622static int 623uslcom_ioctl(struct ucom_softc *ucom, uint32_t cmd, caddr_t data, 624 int flag, struct thread *td) 625{ 626 struct uslcom_softc *sc = ucom->sc_parent; 627 struct usb_device_request req; 628 int error = 0; 629 uint8_t latch; 630 631 DPRINTF("cmd=0x%08x\n", cmd); 632 633 switch (cmd) { 634 case USB_GET_GPIO: 635 req.bmRequestType = USLCOM_READ; 636 req.bRequest = USLCOM_VENDOR_SPECIFIC; 637 USETW(req.wValue, USLCOM_READ_LATCH); 638 USETW(req.wIndex, 0); 639 USETW(req.wLength, sizeof(latch)); 640 641 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 642 &req, &latch, 0, 1000)) { 643 DPRINTF("Get LATCH failed\n"); 644 error = EIO; 645 } 646 *(int *)data = latch; 647 break; 648 649 case USB_SET_GPIO: 650 req.bmRequestType = USLCOM_WRITE; 651 req.bRequest = USLCOM_VENDOR_SPECIFIC; 652 USETW(req.wValue, USLCOM_WRITE_LATCH); 653 USETW(req.wIndex, (*(int *)data)); 654 USETW(req.wLength, 0); 655 656 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 657 &req, NULL, 0, 1000)) { 658 DPRINTF("Set LATCH failed\n"); 659 error = EIO; 660 } 661 break; 662 663 default: 664 DPRINTF("Unknown IOCTL\n"); 665 error = ENOIOCTL; 666 break; 667 } 668 return (error); 669} 670 671static void 672uslcom_write_callback(struct usb_xfer *xfer, usb_error_t error) 673{ 674 struct uslcom_softc *sc = usbd_xfer_softc(xfer); 675 struct usb_page_cache *pc; 676 uint32_t actlen; 677 678 switch (USB_GET_STATE(xfer)) { 679 case USB_ST_SETUP: 680 case USB_ST_TRANSFERRED: 681tr_setup: 682 pc = usbd_xfer_get_frame(xfer, 0); 683 if (ucom_get_data(&sc->sc_ucom, pc, 0, 684 USLCOM_BULK_BUF_SIZE, &actlen)) { 685 686 DPRINTF("actlen = %d\n", actlen); 687 688 usbd_xfer_set_frame_len(xfer, 0, actlen); 689 usbd_transfer_submit(xfer); 690 } 691 return; 692 693 default: /* Error */ 694 if (error != USB_ERR_CANCELLED) { 695 /* try to clear stall first */ 696 usbd_xfer_set_stall(xfer); 697 goto tr_setup; 698 } 699 return; 700 } 701} 702 703static void 704uslcom_read_callback(struct usb_xfer *xfer, usb_error_t error) 705{ 706 struct uslcom_softc *sc = usbd_xfer_softc(xfer); 707 struct usb_page_cache *pc; 708 int actlen; 709 710 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 711 712 switch (USB_GET_STATE(xfer)) { 713 case USB_ST_TRANSFERRED: 714 pc = usbd_xfer_get_frame(xfer, 0); 715 ucom_put_data(&sc->sc_ucom, pc, 0, actlen); 716 717 case USB_ST_SETUP: 718tr_setup: 719 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 720 usbd_transfer_submit(xfer); 721 return; 722 723 default: /* Error */ 724 if (error != USB_ERR_CANCELLED) { 725 /* try to clear stall first */ 726 usbd_xfer_set_stall(xfer); 727 goto tr_setup; 728 } 729 return; 730 } 731} 732 733static void 734uslcom_control_callback(struct usb_xfer *xfer, usb_error_t error) 735{ 736 struct uslcom_softc *sc = usbd_xfer_softc(xfer); 737 struct usb_page_cache *pc; 738 struct usb_device_request req; 739 uint8_t msr = 0; 740 uint8_t buf; 741 742 switch (USB_GET_STATE(xfer)) { 743 case USB_ST_TRANSFERRED: 744 pc = usbd_xfer_get_frame(xfer, 1); 745 usbd_copy_out(pc, 0, &buf, sizeof(buf)); 746 if (buf & USLCOM_CTRL_CTS) 747 msr |= SER_CTS; 748 if (buf & USLCOM_CTRL_DSR) 749 msr |= SER_DSR; 750 if (buf & USLCOM_CTRL_RI) 751 msr |= SER_RI; 752 if (buf & USLCOM_CTRL_DCD) 753 msr |= SER_DCD; 754 755 if (msr != sc->sc_msr) { 756 DPRINTF("status change msr=0x%02x " 757 "(was 0x%02x)\n", msr, sc->sc_msr); 758 sc->sc_msr = msr; 759 ucom_status_change(&sc->sc_ucom); 760 } 761 break; 762 763 case USB_ST_SETUP: 764 req.bmRequestType = USLCOM_READ; 765 req.bRequest = USLCOM_RCTRL; 766 USETW(req.wValue, 0); 767 USETW(req.wIndex, USLCOM_PORT_NO); 768 USETW(req.wLength, sizeof(buf)); 769 770 usbd_xfer_set_frames(xfer, 2); 771 usbd_xfer_set_frame_len(xfer, 0, sizeof(req)); 772 usbd_xfer_set_frame_len(xfer, 1, sizeof(buf)); 773 774 pc = usbd_xfer_get_frame(xfer, 0); 775 usbd_copy_in(pc, 0, &req, sizeof(req)); 776 usbd_transfer_submit(xfer); 777 break; 778 779 default: /* error */ 780 if (error != USB_ERR_CANCELLED) 781 DPRINTF("error=%s\n", usbd_errstr(error)); 782 break; 783 } 784} 785 786static void 787uslcom_start_read(struct ucom_softc *ucom) 788{ 789 struct uslcom_softc *sc = ucom->sc_parent; 790 791 /* start read endpoint */ 792 usbd_transfer_start(sc->sc_xfer[USLCOM_BULK_DT_RD]); 793} 794 795static void 796uslcom_stop_read(struct ucom_softc *ucom) 797{ 798 struct uslcom_softc *sc = ucom->sc_parent; 799 800 /* stop read endpoint */ 801 usbd_transfer_stop(sc->sc_xfer[USLCOM_BULK_DT_RD]); 802} 803 804static void 805uslcom_start_write(struct ucom_softc *ucom) 806{ 807 struct uslcom_softc *sc = ucom->sc_parent; 808 809 usbd_transfer_start(sc->sc_xfer[USLCOM_BULK_DT_WR]); 810} 811 812static void 813uslcom_stop_write(struct ucom_softc *ucom) 814{ 815 struct uslcom_softc *sc = ucom->sc_parent; 816 817 usbd_transfer_stop(sc->sc_xfer[USLCOM_BULK_DT_WR]); 818} 819 820static void 821uslcom_poll(struct ucom_softc *ucom) 822{ 823 struct uslcom_softc *sc = ucom->sc_parent; 824 usbd_transfer_poll(sc->sc_xfer, USLCOM_N_TRANSFER); 825} 826