uslcom.c revision 239180
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 239180 2012-08-10 15:29:41Z hselasky $"); 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 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_SET_BAUD_DIV 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#define USLCOM_SET_BAUD_RATE 0x1e 79#define USLCOM_VENDOR_SPECIFIC 0xff 80 81/* USLCOM_UART values */ 82#define USLCOM_UART_DISABLE 0x00 83#define USLCOM_UART_ENABLE 0x01 84 85/* USLCOM_CTRL/USLCOM_RCTRL values */ 86#define USLCOM_CTRL_DTR_ON 0x0001 87#define USLCOM_CTRL_DTR_SET 0x0100 88#define USLCOM_CTRL_RTS_ON 0x0002 89#define USLCOM_CTRL_RTS_SET 0x0200 90#define USLCOM_CTRL_CTS 0x0010 91#define USLCOM_CTRL_DSR 0x0020 92#define USLCOM_CTRL_RI 0x0040 93#define USLCOM_CTRL_DCD 0x0080 94 95/* USLCOM_SET_BAUD_DIV values */ 96#define USLCOM_BAUD_REF 3686400 /* 3.6864 MHz */ 97 98/* USLCOM_DATA values */ 99#define USLCOM_STOP_BITS_1 0x00 100#define USLCOM_STOP_BITS_2 0x02 101#define USLCOM_PARITY_NONE 0x00 102#define USLCOM_PARITY_ODD 0x10 103#define USLCOM_PARITY_EVEN 0x20 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 /* DTR static active */ 111#define USLCOM_FLOW_CTS_HS 0x00000008 /* CTS handshake */ 112/* USLCOM_SET_FLOWCTRL values - 2nd word */ 113#define USLCOM_FLOW_RTS_ON 0x00000040 /* RTS static active */ 114#define USLCOM_FLOW_RTS_HS 0x00000080 /* RTS handshake */ 115 116/* USLCOM_VENDOR_SPECIFIC values */ 117#define USLCOM_WRITE_LATCH 0x37E1 118#define USLCOM_READ_LATCH 0x00C2 119 120enum { 121 USLCOM_BULK_DT_WR, 122 USLCOM_BULK_DT_RD, 123 USLCOM_CTRL_DT_RD, 124 USLCOM_N_TRANSFER, 125}; 126 127struct uslcom_softc { 128 struct ucom_super_softc sc_super_ucom; 129 struct ucom_softc sc_ucom; 130 struct usb_callout sc_watchdog; 131 132 struct usb_xfer *sc_xfer[USLCOM_N_TRANSFER]; 133 struct usb_device *sc_udev; 134 struct mtx sc_mtx; 135 136 uint8_t sc_msr; 137 uint8_t sc_lsr; 138 uint8_t sc_iface_no; 139}; 140 141static device_probe_t uslcom_probe; 142static device_attach_t uslcom_attach; 143static device_detach_t uslcom_detach; 144static device_free_softc_t uslcom_free_softc; 145 146static usb_callback_t uslcom_write_callback; 147static usb_callback_t uslcom_read_callback; 148static usb_callback_t uslcom_control_callback; 149 150static void uslcom_free(struct ucom_softc *); 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 .ucom_free = &uslcom_free, 213}; 214 215static const STRUCT_USB_HOST_ID uslcom_devs[] = { 216#define USLCOM_DEV(v,p) { USB_VP(USB_VENDOR_##v, USB_PRODUCT_##v##_##p) } 217 USLCOM_DEV(BALTECH, CARDREADER), 218 USLCOM_DEV(CLIPSAL, 5000CT2), 219 USLCOM_DEV(CLIPSAL, 5500PACA), 220 USLCOM_DEV(CLIPSAL, 5500PCU), 221 USLCOM_DEV(CLIPSAL, 560884), 222 USLCOM_DEV(CLIPSAL, 5800PC), 223 USLCOM_DEV(CLIPSAL, C5000CT2), 224 USLCOM_DEV(CLIPSAL, L51xx), 225 USLCOM_DEV(DATAAPEX, MULTICOM), 226 USLCOM_DEV(DELL, DW700), 227 USLCOM_DEV(DIGIANSWER, ZIGBEE802154), 228 USLCOM_DEV(DYNASTREAM, ANTDEVBOARD), 229 USLCOM_DEV(DYNASTREAM, ANTDEVBOARD2), 230 USLCOM_DEV(DYNASTREAM, ANT2USB), 231 USLCOM_DEV(ELV, USBI2C), 232 USLCOM_DEV(FESTO, CMSP), 233 USLCOM_DEV(FESTO, CPX_USB), 234 USLCOM_DEV(FOXCONN, PIRELLI_DP_L10), 235 USLCOM_DEV(FOXCONN, TCOM_TC_300), 236 USLCOM_DEV(GEMALTO, PROXPU), 237 USLCOM_DEV(JABLOTRON, PC60B), 238 USLCOM_DEV(KAMSTRUP, OPTICALEYE), 239 USLCOM_DEV(KAMSTRUP, MBUS_250D), 240 USLCOM_DEV(LINKINSTRUMENTS, MSO19), 241 USLCOM_DEV(LINKINSTRUMENTS, MSO28), 242 USLCOM_DEV(LINKINSTRUMENTS, MSO28_2), 243 USLCOM_DEV(MEI, CASHFLOW_SC), 244 USLCOM_DEV(MEI, S2000), 245 USLCOM_DEV(OWEN, AC4), 246 USLCOM_DEV(PHILIPS, ACE1001), 247 USLCOM_DEV(PLX, CA42), 248 USLCOM_DEV(RENESAS, RX610), 249 USLCOM_DEV(SILABS, AC_SERV_CAN), 250 USLCOM_DEV(SILABS, AC_SERV_CIS), 251 USLCOM_DEV(SILABS, AC_SERV_IBUS), 252 USLCOM_DEV(SILABS, AC_SERV_OBD), 253 USLCOM_DEV(SILABS, AEROCOMM), 254 USLCOM_DEV(SILABS, AMBER_AMB2560), 255 USLCOM_DEV(SILABS, ARGUSISP), 256 USLCOM_DEV(SILABS, ARKHAM_DS101_A), 257 USLCOM_DEV(SILABS, ARKHAM_DS101_M), 258 USLCOM_DEV(SILABS, ARYGON_MIFARE), 259 USLCOM_DEV(SILABS, AVIT_USB_TTL), 260 USLCOM_DEV(SILABS, B_G_H3000), 261 USLCOM_DEV(SILABS, BALLUFF_RFID), 262 USLCOM_DEV(SILABS, BEI_VCP), 263 USLCOM_DEV(SILABS, BSM7DUSB), 264 USLCOM_DEV(SILABS, BURNSIDE), 265 USLCOM_DEV(SILABS, C2_EDGE_MODEM), 266 USLCOM_DEV(SILABS, CP2102), 267 USLCOM_DEV(SILABS, CP210X_2), 268 USLCOM_DEV(SILABS, CP210X_3), 269 USLCOM_DEV(SILABS, CP210X_4), 270 USLCOM_DEV(SILABS, CRUMB128), 271 USLCOM_DEV(SILABS, CYGNAL), 272 USLCOM_DEV(SILABS, CYGNAL_DEBUG), 273 USLCOM_DEV(SILABS, CYGNAL_GPS), 274 USLCOM_DEV(SILABS, DEGREE), 275 USLCOM_DEV(SILABS, DEKTEK_DTAPLUS), 276 USLCOM_DEV(SILABS, EMS_C1007), 277 USLCOM_DEV(SILABS, HAMLINKUSB), 278 USLCOM_DEV(SILABS, HELICOM), 279 USLCOM_DEV(SILABS, IMS_USB_RS422), 280 USLCOM_DEV(SILABS, INFINITY_MIC), 281 USLCOM_DEV(SILABS, INSYS_MODEM), 282 USLCOM_DEV(SILABS, IRZ_SG10), 283 USLCOM_DEV(SILABS, KYOCERA_GPS), 284 USLCOM_DEV(SILABS, LIPOWSKY_HARP), 285 USLCOM_DEV(SILABS, LIPOWSKY_JTAG), 286 USLCOM_DEV(SILABS, LIPOWSKY_LIN), 287 USLCOM_DEV(SILABS, MC35PU), 288 USLCOM_DEV(SILABS, MJS_TOSLINK), 289 USLCOM_DEV(SILABS, MSD_DASHHAWK), 290 USLCOM_DEV(SILABS, MULTIPLEX_RC), 291 USLCOM_DEV(SILABS, OPTRIS_MSPRO), 292 USLCOM_DEV(SILABS, POLOLU), 293 USLCOM_DEV(SILABS, PROCYON_AVS), 294 USLCOM_DEV(SILABS, SB_PARAMOUNT_ME), 295 USLCOM_DEV(SILABS, SUUNTO), 296 USLCOM_DEV(SILABS, TAMSMASTER), 297 USLCOM_DEV(SILABS, TELEGESIS_ETRX2), 298 USLCOM_DEV(SILABS, TRACIENT), 299 USLCOM_DEV(SILABS, TRAQMATE), 300 USLCOM_DEV(SILABS, USBCOUNT50), 301 USLCOM_DEV(SILABS, USBPULSE100), 302 USLCOM_DEV(SILABS, USBSCOPE50), 303 USLCOM_DEV(SILABS, USBWAVE12), 304 USLCOM_DEV(SILABS, VSTABI), 305 USLCOM_DEV(SILABS, WAVIT), 306 USLCOM_DEV(SILABS, WMRBATT), 307 USLCOM_DEV(SILABS, WMRRIGBLASTER), 308 USLCOM_DEV(SILABS, WMRRIGTALK), 309 USLCOM_DEV(SILABS, ZEPHYR_BIO), 310 USLCOM_DEV(SILABS2, DCU11CLONE), 311 USLCOM_DEV(SILABS3, GPRS_MODEM), 312 USLCOM_DEV(SILABS4, 100EU_MODEM), 313 USLCOM_DEV(SYNTECH, CYPHERLAB100), 314 USLCOM_DEV(USI, MC60), 315 USLCOM_DEV(VAISALA, CABLE), 316 USLCOM_DEV(WAGO, SERVICECABLE), 317 USLCOM_DEV(WAVESENSE, JAZZ), 318 USLCOM_DEV(WIENERPLEINBAUS, PL512), 319 USLCOM_DEV(WIENERPLEINBAUS, RCM), 320 USLCOM_DEV(WIENERPLEINBAUS, MPOD), 321 USLCOM_DEV(WIENERPLEINBAUS, CML), 322#undef USLCOM_DEV 323}; 324 325static device_method_t uslcom_methods[] = { 326 DEVMETHOD(device_probe, uslcom_probe), 327 DEVMETHOD(device_attach, uslcom_attach), 328 DEVMETHOD(device_detach, uslcom_detach), 329 DEVMETHOD(device_free_softc, uslcom_free_softc), 330 DEVMETHOD_END 331}; 332 333static devclass_t uslcom_devclass; 334 335static driver_t uslcom_driver = { 336 .name = "uslcom", 337 .methods = uslcom_methods, 338 .size = sizeof(struct uslcom_softc), 339}; 340 341DRIVER_MODULE(uslcom, uhub, uslcom_driver, uslcom_devclass, NULL, 0); 342MODULE_DEPEND(uslcom, ucom, 1, 1, 1); 343MODULE_DEPEND(uslcom, usb, 1, 1, 1); 344MODULE_VERSION(uslcom, 1); 345 346static void 347uslcom_watchdog(void *arg) 348{ 349 struct uslcom_softc *sc = arg; 350 351 mtx_assert(&sc->sc_mtx, MA_OWNED); 352 353 usbd_transfer_start(sc->sc_xfer[USLCOM_CTRL_DT_RD]); 354 355 usb_callout_reset(&sc->sc_watchdog, 356 hz / 4, &uslcom_watchdog, sc); 357} 358 359static int 360uslcom_probe(device_t dev) 361{ 362 struct usb_attach_arg *uaa = device_get_ivars(dev); 363 364 DPRINTFN(11, "\n"); 365 366 if (uaa->usb_mode != USB_MODE_HOST) { 367 return (ENXIO); 368 } 369 if (uaa->info.bConfigIndex != USLCOM_CONFIG_INDEX) { 370 return (ENXIO); 371 } 372 return (usbd_lookup_id_by_uaa(uslcom_devs, sizeof(uslcom_devs), uaa)); 373} 374 375static int 376uslcom_attach(device_t dev) 377{ 378 struct usb_attach_arg *uaa = device_get_ivars(dev); 379 struct uslcom_softc *sc = device_get_softc(dev); 380 int error; 381 382 DPRINTFN(11, "\n"); 383 384 device_set_usb_desc(dev); 385 mtx_init(&sc->sc_mtx, "uslcom", NULL, MTX_DEF); 386 ucom_ref(&sc->sc_super_ucom); 387 usb_callout_init_mtx(&sc->sc_watchdog, &sc->sc_mtx, 0); 388 389 sc->sc_udev = uaa->device; 390 /* use the interface number from the USB interface descriptor */ 391 sc->sc_iface_no = uaa->info.bIfaceNum; 392 393 error = usbd_transfer_setup(uaa->device, 394 &uaa->info.bIfaceIndex, sc->sc_xfer, uslcom_config, 395 USLCOM_N_TRANSFER, sc, &sc->sc_mtx); 396 if (error) { 397 DPRINTF("one or more missing USB endpoints, " 398 "error=%s\n", usbd_errstr(error)); 399 goto detach; 400 } 401 /* clear stall at first run */ 402 mtx_lock(&sc->sc_mtx); 403 usbd_xfer_set_stall(sc->sc_xfer[USLCOM_BULK_DT_WR]); 404 usbd_xfer_set_stall(sc->sc_xfer[USLCOM_BULK_DT_RD]); 405 mtx_unlock(&sc->sc_mtx); 406 407 error = ucom_attach(&sc->sc_super_ucom, &sc->sc_ucom, 1, sc, 408 &uslcom_callback, &sc->sc_mtx); 409 if (error) { 410 goto detach; 411 } 412 ucom_set_pnpinfo_usb(&sc->sc_super_ucom, dev); 413 414 return (0); 415 416detach: 417 uslcom_detach(dev); 418 return (ENXIO); 419} 420 421static int 422uslcom_detach(device_t dev) 423{ 424 struct uslcom_softc *sc = device_get_softc(dev); 425 426 DPRINTF("sc=%p\n", sc); 427 428 ucom_detach(&sc->sc_super_ucom, &sc->sc_ucom); 429 usbd_transfer_unsetup(sc->sc_xfer, USLCOM_N_TRANSFER); 430 431 usb_callout_drain(&sc->sc_watchdog); 432 433 return (0); 434} 435 436UCOM_UNLOAD_DRAIN(uslcom); 437 438static void 439uslcom_free_softc(device_t dev, void *arg) 440{ 441 struct uslcom_softc *sc = arg; 442 443 if (ucom_unref(&sc->sc_super_ucom)) { 444 if (mtx_initialized(&sc->sc_mtx)) 445 mtx_destroy(&sc->sc_mtx); 446 device_free_softc(dev, sc); 447 } 448} 449 450static void 451uslcom_free(struct ucom_softc *ucom) 452{ 453 uslcom_free_softc(NULL, ucom->sc_parent); 454} 455 456static void 457uslcom_open(struct ucom_softc *ucom) 458{ 459 struct uslcom_softc *sc = ucom->sc_parent; 460 struct usb_device_request req; 461 462 req.bmRequestType = USLCOM_WRITE; 463 req.bRequest = USLCOM_UART; 464 USETW(req.wValue, USLCOM_UART_ENABLE); 465 USETW(req.wIndex, sc->sc_iface_no); 466 USETW(req.wLength, 0); 467 468 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 469 &req, NULL, 0, 1000)) { 470 DPRINTF("UART enable failed (ignored)\n"); 471 } 472 473 /* start polling status */ 474 uslcom_watchdog(sc); 475} 476 477static void 478uslcom_close(struct ucom_softc *ucom) 479{ 480 struct uslcom_softc *sc = ucom->sc_parent; 481 struct usb_device_request req; 482 483 /* stop polling status */ 484 usb_callout_stop(&sc->sc_watchdog); 485 486 req.bmRequestType = USLCOM_WRITE; 487 req.bRequest = USLCOM_UART; 488 USETW(req.wValue, USLCOM_UART_DISABLE); 489 USETW(req.wIndex, sc->sc_iface_no); 490 USETW(req.wLength, 0); 491 492 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 493 &req, NULL, 0, 1000)) { 494 DPRINTF("UART disable failed (ignored)\n"); 495 } 496} 497 498static void 499uslcom_set_dtr(struct ucom_softc *ucom, uint8_t onoff) 500{ 501 struct uslcom_softc *sc = ucom->sc_parent; 502 struct usb_device_request req; 503 uint16_t ctl; 504 505 DPRINTF("onoff = %d\n", onoff); 506 507 ctl = onoff ? USLCOM_CTRL_DTR_ON : 0; 508 ctl |= USLCOM_CTRL_DTR_SET; 509 510 req.bmRequestType = USLCOM_WRITE; 511 req.bRequest = USLCOM_CTRL; 512 USETW(req.wValue, ctl); 513 USETW(req.wIndex, sc->sc_iface_no); 514 USETW(req.wLength, 0); 515 516 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 517 &req, NULL, 0, 1000)) { 518 DPRINTF("Setting DTR failed (ignored)\n"); 519 } 520} 521 522static void 523uslcom_set_rts(struct ucom_softc *ucom, uint8_t onoff) 524{ 525 struct uslcom_softc *sc = ucom->sc_parent; 526 struct usb_device_request req; 527 uint16_t ctl; 528 529 DPRINTF("onoff = %d\n", onoff); 530 531 ctl = onoff ? USLCOM_CTRL_RTS_ON : 0; 532 ctl |= USLCOM_CTRL_RTS_SET; 533 534 req.bmRequestType = USLCOM_WRITE; 535 req.bRequest = USLCOM_CTRL; 536 USETW(req.wValue, ctl); 537 USETW(req.wIndex, sc->sc_iface_no); 538 USETW(req.wLength, 0); 539 540 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 541 &req, NULL, 0, 1000)) { 542 DPRINTF("Setting DTR failed (ignored)\n"); 543 } 544} 545 546static int 547uslcom_pre_param(struct ucom_softc *ucom, struct termios *t) 548{ 549 if (t->c_ospeed <= 0 || t->c_ospeed > 921600) 550 return (EINVAL); 551 return (0); 552} 553 554static void 555uslcom_param(struct ucom_softc *ucom, struct termios *t) 556{ 557 struct uslcom_softc *sc = ucom->sc_parent; 558 struct usb_device_request req; 559 uint32_t baudrate, flowctrl[4]; 560 uint16_t data; 561 562 DPRINTF("\n"); 563 564 baudrate = t->c_ospeed; 565 req.bmRequestType = USLCOM_WRITE; 566 req.bRequest = USLCOM_SET_BAUD_RATE; 567 USETW(req.wValue, 0); 568 USETW(req.wIndex, sc->sc_iface_no); 569 USETW(req.wLength, sizeof(baudrate)); 570 571 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 572 &req, &baudrate, 0, 1000)) { 573 DPRINTF("Set baudrate failed (ignored)\n"); 574 } 575 576 if (t->c_cflag & CSTOPB) 577 data = USLCOM_STOP_BITS_2; 578 else 579 data = USLCOM_STOP_BITS_1; 580 if (t->c_cflag & PARENB) { 581 if (t->c_cflag & PARODD) 582 data |= USLCOM_PARITY_ODD; 583 else 584 data |= USLCOM_PARITY_EVEN; 585 } else 586 data |= USLCOM_PARITY_NONE; 587 switch (t->c_cflag & CSIZE) { 588 case CS5: 589 data |= USLCOM_SET_DATA_BITS(5); 590 break; 591 case CS6: 592 data |= USLCOM_SET_DATA_BITS(6); 593 break; 594 case CS7: 595 data |= USLCOM_SET_DATA_BITS(7); 596 break; 597 case CS8: 598 data |= USLCOM_SET_DATA_BITS(8); 599 break; 600 } 601 602 req.bmRequestType = USLCOM_WRITE; 603 req.bRequest = USLCOM_DATA; 604 USETW(req.wValue, data); 605 USETW(req.wIndex, sc->sc_iface_no); 606 USETW(req.wLength, 0); 607 608 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 609 &req, NULL, 0, 1000)) { 610 DPRINTF("Set format failed (ignored)\n"); 611 } 612 613 if (t->c_cflag & CRTSCTS) { 614 flowctrl[0] = htole32(USLCOM_FLOW_DTR_ON | USLCOM_FLOW_CTS_HS); 615 flowctrl[1] = htole32(USLCOM_FLOW_RTS_HS); 616 flowctrl[2] = 0; 617 flowctrl[3] = 0; 618 } else { 619 flowctrl[0] = htole32(USLCOM_FLOW_DTR_ON); 620 flowctrl[1] = htole32(USLCOM_FLOW_RTS_ON); 621 flowctrl[2] = 0; 622 flowctrl[3] = 0; 623 } 624 req.bmRequestType = USLCOM_WRITE; 625 req.bRequest = USLCOM_SET_FLOWCTRL; 626 USETW(req.wValue, 0); 627 USETW(req.wIndex, sc->sc_iface_no); 628 USETW(req.wLength, sizeof(flowctrl)); 629 630 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 631 &req, flowctrl, 0, 1000)) { 632 DPRINTF("Set flowcontrol failed (ignored)\n"); 633 } 634} 635 636static void 637uslcom_get_status(struct ucom_softc *ucom, uint8_t *lsr, uint8_t *msr) 638{ 639 struct uslcom_softc *sc = ucom->sc_parent; 640 641 DPRINTF("\n"); 642 643 *lsr = sc->sc_lsr; 644 *msr = sc->sc_msr; 645} 646 647static void 648uslcom_set_break(struct ucom_softc *ucom, uint8_t onoff) 649{ 650 struct uslcom_softc *sc = ucom->sc_parent; 651 struct usb_device_request req; 652 uint16_t brk = onoff ? USLCOM_BREAK_ON : USLCOM_BREAK_OFF; 653 654 req.bmRequestType = USLCOM_WRITE; 655 req.bRequest = USLCOM_BREAK; 656 USETW(req.wValue, brk); 657 USETW(req.wIndex, sc->sc_iface_no); 658 USETW(req.wLength, 0); 659 660 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 661 &req, NULL, 0, 1000)) { 662 DPRINTF("Set BREAK failed (ignored)\n"); 663 } 664} 665 666static int 667uslcom_ioctl(struct ucom_softc *ucom, uint32_t cmd, caddr_t data, 668 int flag, struct thread *td) 669{ 670 struct uslcom_softc *sc = ucom->sc_parent; 671 struct usb_device_request req; 672 int error = 0; 673 uint8_t latch; 674 675 DPRINTF("cmd=0x%08x\n", cmd); 676 677 switch (cmd) { 678 case USB_GET_GPIO: 679 req.bmRequestType = USLCOM_READ; 680 req.bRequest = USLCOM_VENDOR_SPECIFIC; 681 USETW(req.wValue, USLCOM_READ_LATCH); 682 USETW(req.wIndex, 0); 683 USETW(req.wLength, sizeof(latch)); 684 685 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 686 &req, &latch, 0, 1000)) { 687 DPRINTF("Get LATCH failed\n"); 688 error = EIO; 689 } 690 *(int *)data = latch; 691 break; 692 693 case USB_SET_GPIO: 694 req.bmRequestType = USLCOM_WRITE; 695 req.bRequest = USLCOM_VENDOR_SPECIFIC; 696 USETW(req.wValue, USLCOM_WRITE_LATCH); 697 USETW(req.wIndex, (*(int *)data)); 698 USETW(req.wLength, 0); 699 700 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 701 &req, NULL, 0, 1000)) { 702 DPRINTF("Set LATCH failed\n"); 703 error = EIO; 704 } 705 break; 706 707 default: 708 DPRINTF("Unknown IOCTL\n"); 709 error = ENOIOCTL; 710 break; 711 } 712 return (error); 713} 714 715static void 716uslcom_write_callback(struct usb_xfer *xfer, usb_error_t error) 717{ 718 struct uslcom_softc *sc = usbd_xfer_softc(xfer); 719 struct usb_page_cache *pc; 720 uint32_t actlen; 721 722 switch (USB_GET_STATE(xfer)) { 723 case USB_ST_SETUP: 724 case USB_ST_TRANSFERRED: 725tr_setup: 726 pc = usbd_xfer_get_frame(xfer, 0); 727 if (ucom_get_data(&sc->sc_ucom, pc, 0, 728 USLCOM_BULK_BUF_SIZE, &actlen)) { 729 730 DPRINTF("actlen = %d\n", actlen); 731 732 usbd_xfer_set_frame_len(xfer, 0, actlen); 733 usbd_transfer_submit(xfer); 734 } 735 return; 736 737 default: /* Error */ 738 if (error != USB_ERR_CANCELLED) { 739 /* try to clear stall first */ 740 usbd_xfer_set_stall(xfer); 741 goto tr_setup; 742 } 743 return; 744 } 745} 746 747static void 748uslcom_read_callback(struct usb_xfer *xfer, usb_error_t error) 749{ 750 struct uslcom_softc *sc = usbd_xfer_softc(xfer); 751 struct usb_page_cache *pc; 752 int actlen; 753 754 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 755 756 switch (USB_GET_STATE(xfer)) { 757 case USB_ST_TRANSFERRED: 758 pc = usbd_xfer_get_frame(xfer, 0); 759 ucom_put_data(&sc->sc_ucom, pc, 0, actlen); 760 761 case USB_ST_SETUP: 762tr_setup: 763 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 764 usbd_transfer_submit(xfer); 765 return; 766 767 default: /* Error */ 768 if (error != USB_ERR_CANCELLED) { 769 /* try to clear stall first */ 770 usbd_xfer_set_stall(xfer); 771 goto tr_setup; 772 } 773 return; 774 } 775} 776 777static void 778uslcom_control_callback(struct usb_xfer *xfer, usb_error_t error) 779{ 780 struct uslcom_softc *sc = usbd_xfer_softc(xfer); 781 struct usb_page_cache *pc; 782 struct usb_device_request req; 783 uint8_t msr = 0; 784 uint8_t buf; 785 786 switch (USB_GET_STATE(xfer)) { 787 case USB_ST_TRANSFERRED: 788 pc = usbd_xfer_get_frame(xfer, 1); 789 usbd_copy_out(pc, 0, &buf, sizeof(buf)); 790 if (buf & USLCOM_CTRL_CTS) 791 msr |= SER_CTS; 792 if (buf & USLCOM_CTRL_DSR) 793 msr |= SER_DSR; 794 if (buf & USLCOM_CTRL_RI) 795 msr |= SER_RI; 796 if (buf & USLCOM_CTRL_DCD) 797 msr |= SER_DCD; 798 799 if (msr != sc->sc_msr) { 800 DPRINTF("status change msr=0x%02x " 801 "(was 0x%02x)\n", msr, sc->sc_msr); 802 sc->sc_msr = msr; 803 ucom_status_change(&sc->sc_ucom); 804 } 805 break; 806 807 case USB_ST_SETUP: 808 req.bmRequestType = USLCOM_READ; 809 req.bRequest = USLCOM_RCTRL; 810 USETW(req.wValue, 0); 811 USETW(req.wIndex, sc->sc_iface_no); 812 USETW(req.wLength, sizeof(buf)); 813 814 usbd_xfer_set_frames(xfer, 2); 815 usbd_xfer_set_frame_len(xfer, 0, sizeof(req)); 816 usbd_xfer_set_frame_len(xfer, 1, sizeof(buf)); 817 818 pc = usbd_xfer_get_frame(xfer, 0); 819 usbd_copy_in(pc, 0, &req, sizeof(req)); 820 usbd_transfer_submit(xfer); 821 break; 822 823 default: /* error */ 824 if (error != USB_ERR_CANCELLED) 825 DPRINTF("error=%s\n", usbd_errstr(error)); 826 break; 827 } 828} 829 830static void 831uslcom_start_read(struct ucom_softc *ucom) 832{ 833 struct uslcom_softc *sc = ucom->sc_parent; 834 835 /* start read endpoint */ 836 usbd_transfer_start(sc->sc_xfer[USLCOM_BULK_DT_RD]); 837} 838 839static void 840uslcom_stop_read(struct ucom_softc *ucom) 841{ 842 struct uslcom_softc *sc = ucom->sc_parent; 843 844 /* stop read endpoint */ 845 usbd_transfer_stop(sc->sc_xfer[USLCOM_BULK_DT_RD]); 846} 847 848static void 849uslcom_start_write(struct ucom_softc *ucom) 850{ 851 struct uslcom_softc *sc = ucom->sc_parent; 852 853 usbd_transfer_start(sc->sc_xfer[USLCOM_BULK_DT_WR]); 854} 855 856static void 857uslcom_stop_write(struct ucom_softc *ucom) 858{ 859 struct uslcom_softc *sc = ucom->sc_parent; 860 861 usbd_transfer_stop(sc->sc_xfer[USLCOM_BULK_DT_WR]); 862} 863 864static void 865uslcom_poll(struct ucom_softc *ucom) 866{ 867 struct uslcom_softc *sc = ucom->sc_parent; 868 usbd_transfer_poll(sc->sc_xfer, USLCOM_N_TRANSFER); 869} 870