uslcom.c revision 263166
1/* $OpenBSD: uslcom.c,v 1.17 2007/11/24 10:52:12 jsg Exp $ */ 2 3#include <sys/cdefs.h> 4__FBSDID("$FreeBSD: stable/9/sys/dev/usb/serial/uslcom.c 263166 2014-03-14 10:18:53Z 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/* 23 * Driver for Silicon Laboratories CP2101/CP2102/CP2103/CP2104/CP2105 24 * USB-Serial adapters. Based on datasheet AN571, publicly available from 25 * http://www.silabs.com/Support%20Documents/TechnicalDocs/AN571.pdf 26 */ 27 28#include <sys/stdint.h> 29#include <sys/stddef.h> 30#include <sys/param.h> 31#include <sys/queue.h> 32#include <sys/types.h> 33#include <sys/systm.h> 34#include <sys/kernel.h> 35#include <sys/bus.h> 36#include <sys/module.h> 37#include <sys/lock.h> 38#include <sys/mutex.h> 39#include <sys/condvar.h> 40#include <sys/sysctl.h> 41#include <sys/sx.h> 42#include <sys/unistd.h> 43#include <sys/callout.h> 44#include <sys/malloc.h> 45#include <sys/priv.h> 46 47#include <dev/usb/usb.h> 48#include <dev/usb/usbdi.h> 49#include <dev/usb/usbdi_util.h> 50#include <dev/usb/usb_ioctl.h> 51#include "usbdevs.h" 52 53#define USB_DEBUG_VAR uslcom_debug 54#include <dev/usb/usb_debug.h> 55#include <dev/usb/usb_process.h> 56 57#include <dev/usb/serial/usb_serial.h> 58 59#ifdef USB_DEBUG 60static int uslcom_debug = 0; 61 62static SYSCTL_NODE(_hw_usb, OID_AUTO, uslcom, CTLFLAG_RW, 0, "USB uslcom"); 63SYSCTL_INT(_hw_usb_uslcom, OID_AUTO, debug, CTLFLAG_RW, 64 &uslcom_debug, 0, "Debug level"); 65#endif 66 67#define USLCOM_BULK_BUF_SIZE 1024 68#define USLCOM_CONFIG_INDEX 0 69 70/* Request types */ 71#define USLCOM_WRITE 0x41 72#define USLCOM_READ 0xc1 73 74/* Request codes */ 75#define USLCOM_IFC_ENABLE 0x00 76#define USLCOM_SET_BAUDDIV 0x01 77#define USLCOM_SET_LINE_CTL 0x03 78#define USLCOM_SET_BREAK 0x05 79#define USLCOM_SET_MHS 0x07 80#define USLCOM_GET_MDMSTS 0x08 81#define USLCOM_SET_FLOW 0x13 82#define USLCOM_SET_BAUDRATE 0x1e 83#define USLCOM_VENDOR_SPECIFIC 0xff 84 85/* USLCOM_IFC_ENABLE values */ 86#define USLCOM_IFC_ENABLE_DIS 0x00 87#define USLCOM_IFC_ENABLE_EN 0x01 88 89/* USLCOM_SET_MHS/USLCOM_GET_MDMSTS values */ 90#define USLCOM_MHS_DTR_ON 0x0001 91#define USLCOM_MHS_DTR_SET 0x0100 92#define USLCOM_MHS_RTS_ON 0x0002 93#define USLCOM_MHS_RTS_SET 0x0200 94#define USLCOM_MHS_CTS 0x0010 95#define USLCOM_MHS_DSR 0x0020 96#define USLCOM_MHS_RI 0x0040 97#define USLCOM_MHS_DCD 0x0080 98 99/* USLCOM_SET_BAUDDIV values */ 100#define USLCOM_BAUDDIV_REF 3686400 /* 3.6864 MHz */ 101 102/* USLCOM_SET_LINE_CTL values */ 103#define USLCOM_STOP_BITS_1 0x00 104#define USLCOM_STOP_BITS_2 0x02 105#define USLCOM_PARITY_NONE 0x00 106#define USLCOM_PARITY_ODD 0x10 107#define USLCOM_PARITY_EVEN 0x20 108#define USLCOM_SET_DATA_BITS(x) ((x) << 8) 109 110/* USLCOM_SET_BREAK values */ 111#define USLCOM_SET_BREAK_OFF 0x00 112#define USLCOM_SET_BREAK_ON 0x01 113 114/* USLCOM_SET_FLOW values - 1st word */ 115#define USLCOM_FLOW_DTR_ON 0x00000001 /* DTR static active */ 116#define USLCOM_FLOW_CTS_HS 0x00000008 /* CTS handshake */ 117/* USLCOM_SET_FLOW values - 2nd word */ 118#define USLCOM_FLOW_RTS_ON 0x00000040 /* RTS static active */ 119#define USLCOM_FLOW_RTS_HS 0x00000080 /* RTS handshake */ 120 121/* USLCOM_VENDOR_SPECIFIC values */ 122#define USLCOM_WRITE_LATCH 0x37E1 123#define USLCOM_READ_LATCH 0x00C2 124 125enum { 126 USLCOM_BULK_DT_WR, 127 USLCOM_BULK_DT_RD, 128 USLCOM_CTRL_DT_RD, 129 USLCOM_N_TRANSFER, 130}; 131 132struct uslcom_softc { 133 struct ucom_super_softc sc_super_ucom; 134 struct ucom_softc sc_ucom; 135 struct usb_callout sc_watchdog; 136 137 struct usb_xfer *sc_xfer[USLCOM_N_TRANSFER]; 138 struct usb_device *sc_udev; 139 struct mtx sc_mtx; 140 141 uint8_t sc_msr; 142 uint8_t sc_lsr; 143 uint8_t sc_iface_no; 144}; 145 146static device_probe_t uslcom_probe; 147static device_attach_t uslcom_attach; 148static device_detach_t uslcom_detach; 149static void uslcom_free_softc(struct uslcom_softc *); 150 151static usb_callback_t uslcom_write_callback; 152static usb_callback_t uslcom_read_callback; 153static usb_callback_t uslcom_control_callback; 154 155static void uslcom_free(struct ucom_softc *); 156static void uslcom_open(struct ucom_softc *); 157static void uslcom_close(struct ucom_softc *); 158static void uslcom_set_dtr(struct ucom_softc *, uint8_t); 159static void uslcom_set_rts(struct ucom_softc *, uint8_t); 160static void uslcom_set_break(struct ucom_softc *, uint8_t); 161static int uslcom_ioctl(struct ucom_softc *, uint32_t, caddr_t, int, 162 struct thread *); 163static int uslcom_pre_param(struct ucom_softc *, struct termios *); 164static void uslcom_param(struct ucom_softc *, struct termios *); 165static void uslcom_get_status(struct ucom_softc *, uint8_t *, uint8_t *); 166static void uslcom_start_read(struct ucom_softc *); 167static void uslcom_stop_read(struct ucom_softc *); 168static void uslcom_start_write(struct ucom_softc *); 169static void uslcom_stop_write(struct ucom_softc *); 170static void uslcom_poll(struct ucom_softc *ucom); 171 172static const struct usb_config uslcom_config[USLCOM_N_TRANSFER] = { 173 174 [USLCOM_BULK_DT_WR] = { 175 .type = UE_BULK, 176 .endpoint = UE_ADDR_ANY, 177 .direction = UE_DIR_OUT, 178 .bufsize = USLCOM_BULK_BUF_SIZE, 179 .flags = {.pipe_bof = 1,}, 180 .callback = &uslcom_write_callback, 181 }, 182 183 [USLCOM_BULK_DT_RD] = { 184 .type = UE_BULK, 185 .endpoint = UE_ADDR_ANY, 186 .direction = UE_DIR_IN, 187 .bufsize = USLCOM_BULK_BUF_SIZE, 188 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 189 .callback = &uslcom_read_callback, 190 }, 191 [USLCOM_CTRL_DT_RD] = { 192 .type = UE_CONTROL, 193 .endpoint = 0x00, 194 .direction = UE_DIR_ANY, 195 .bufsize = sizeof(struct usb_device_request) + 8, 196 .flags = {.pipe_bof = 1,}, 197 .callback = &uslcom_control_callback, 198 .timeout = 1000, /* 1 second timeout */ 199 }, 200}; 201 202static struct ucom_callback uslcom_callback = { 203 .ucom_cfg_open = &uslcom_open, 204 .ucom_cfg_close = &uslcom_close, 205 .ucom_cfg_get_status = &uslcom_get_status, 206 .ucom_cfg_set_dtr = &uslcom_set_dtr, 207 .ucom_cfg_set_rts = &uslcom_set_rts, 208 .ucom_cfg_set_break = &uslcom_set_break, 209 .ucom_ioctl = &uslcom_ioctl, 210 .ucom_cfg_param = &uslcom_param, 211 .ucom_pre_param = &uslcom_pre_param, 212 .ucom_start_read = &uslcom_start_read, 213 .ucom_stop_read = &uslcom_stop_read, 214 .ucom_start_write = &uslcom_start_write, 215 .ucom_stop_write = &uslcom_stop_write, 216 .ucom_poll = &uslcom_poll, 217 .ucom_free = &uslcom_free, 218}; 219 220static const STRUCT_USB_HOST_ID uslcom_devs[] = { 221#define USLCOM_DEV(v,p) { USB_VP(USB_VENDOR_##v, USB_PRODUCT_##v##_##p) } 222 USLCOM_DEV(BALTECH, CARDREADER), 223 USLCOM_DEV(CLIPSAL, 5000CT2), 224 USLCOM_DEV(CLIPSAL, 5500PACA), 225 USLCOM_DEV(CLIPSAL, 5500PCU), 226 USLCOM_DEV(CLIPSAL, 560884), 227 USLCOM_DEV(CLIPSAL, 5800PC), 228 USLCOM_DEV(CLIPSAL, C5000CT2), 229 USLCOM_DEV(CLIPSAL, L51xx), 230 USLCOM_DEV(DATAAPEX, MULTICOM), 231 USLCOM_DEV(DELL, DW700), 232 USLCOM_DEV(DIGIANSWER, ZIGBEE802154), 233 USLCOM_DEV(DYNASTREAM, ANTDEVBOARD), 234 USLCOM_DEV(DYNASTREAM, ANTDEVBOARD2), 235 USLCOM_DEV(DYNASTREAM, ANT2USB), 236 USLCOM_DEV(ELV, USBI2C), 237 USLCOM_DEV(FESTO, CMSP), 238 USLCOM_DEV(FESTO, CPX_USB), 239 USLCOM_DEV(FOXCONN, PIRELLI_DP_L10), 240 USLCOM_DEV(FOXCONN, TCOM_TC_300), 241 USLCOM_DEV(GEMALTO, PROXPU), 242 USLCOM_DEV(JABLOTRON, PC60B), 243 USLCOM_DEV(KAMSTRUP, OPTICALEYE), 244 USLCOM_DEV(KAMSTRUP, MBUS_250D), 245 USLCOM_DEV(LAKESHORE, 121), 246 USLCOM_DEV(LAKESHORE, 218A), 247 USLCOM_DEV(LAKESHORE, 219), 248 USLCOM_DEV(LAKESHORE, 233), 249 USLCOM_DEV(LAKESHORE, 235), 250 USLCOM_DEV(LAKESHORE, 335), 251 USLCOM_DEV(LAKESHORE, 336), 252 USLCOM_DEV(LAKESHORE, 350), 253 USLCOM_DEV(LAKESHORE, 371), 254 USLCOM_DEV(LAKESHORE, 411), 255 USLCOM_DEV(LAKESHORE, 425), 256 USLCOM_DEV(LAKESHORE, 455A), 257 USLCOM_DEV(LAKESHORE, 465), 258 USLCOM_DEV(LAKESHORE, 475A), 259 USLCOM_DEV(LAKESHORE, 625A), 260 USLCOM_DEV(LAKESHORE, 642A), 261 USLCOM_DEV(LAKESHORE, 648), 262 USLCOM_DEV(LAKESHORE, 737), 263 USLCOM_DEV(LAKESHORE, 776), 264 USLCOM_DEV(LINKINSTRUMENTS, MSO19), 265 USLCOM_DEV(LINKINSTRUMENTS, MSO28), 266 USLCOM_DEV(LINKINSTRUMENTS, MSO28_2), 267 USLCOM_DEV(MEI, CASHFLOW_SC), 268 USLCOM_DEV(MEI, S2000), 269 USLCOM_DEV(NETGEAR, M4100), 270 USLCOM_DEV(OWEN, AC4), 271 USLCOM_DEV(OWL, CM_160), 272 USLCOM_DEV(PHILIPS, ACE1001), 273 USLCOM_DEV(PLX, CA42), 274 USLCOM_DEV(RENESAS, RX610), 275 USLCOM_DEV(SEL, C662), 276 USLCOM_DEV(SILABS, AC_SERV_CAN), 277 USLCOM_DEV(SILABS, AC_SERV_CIS), 278 USLCOM_DEV(SILABS, AC_SERV_IBUS), 279 USLCOM_DEV(SILABS, AC_SERV_OBD), 280 USLCOM_DEV(SILABS, AEROCOMM), 281 USLCOM_DEV(SILABS, AMBER_AMB2560), 282 USLCOM_DEV(SILABS, ARGUSISP), 283 USLCOM_DEV(SILABS, ARKHAM_DS101_A), 284 USLCOM_DEV(SILABS, ARKHAM_DS101_M), 285 USLCOM_DEV(SILABS, ARYGON_MIFARE), 286 USLCOM_DEV(SILABS, AVIT_USB_TTL), 287 USLCOM_DEV(SILABS, B_G_H3000), 288 USLCOM_DEV(SILABS, BALLUFF_RFID), 289 USLCOM_DEV(SILABS, BEI_VCP), 290 USLCOM_DEV(SILABS, BSM7DUSB), 291 USLCOM_DEV(SILABS, BURNSIDE), 292 USLCOM_DEV(SILABS, C2_EDGE_MODEM), 293 USLCOM_DEV(SILABS, CP2102), 294 USLCOM_DEV(SILABS, CP210X_2), 295 USLCOM_DEV(SILABS, CP210X_3), 296 USLCOM_DEV(SILABS, CP210X_4), 297 USLCOM_DEV(SILABS, CRUMB128), 298 USLCOM_DEV(SILABS, CYGNAL), 299 USLCOM_DEV(SILABS, CYGNAL_DEBUG), 300 USLCOM_DEV(SILABS, CYGNAL_GPS), 301 USLCOM_DEV(SILABS, DEGREE), 302 USLCOM_DEV(SILABS, DEKTEK_DTAPLUS), 303 USLCOM_DEV(SILABS, EMS_C1007), 304 USLCOM_DEV(SILABS, HAMLINKUSB), 305 USLCOM_DEV(SILABS, HELICOM), 306 USLCOM_DEV(SILABS, IMS_USB_RS422), 307 USLCOM_DEV(SILABS, INFINITY_MIC), 308 USLCOM_DEV(SILABS, INGENI_ZIGBEE), 309 USLCOM_DEV(SILABS, INSYS_MODEM), 310 USLCOM_DEV(SILABS, IRZ_SG10), 311 USLCOM_DEV(SILABS, KYOCERA_GPS), 312 USLCOM_DEV(SILABS, LIPOWSKY_HARP), 313 USLCOM_DEV(SILABS, LIPOWSKY_JTAG), 314 USLCOM_DEV(SILABS, LIPOWSKY_LIN), 315 USLCOM_DEV(SILABS, MC35PU), 316 USLCOM_DEV(SILABS, MMB_ZIGBEE), 317 USLCOM_DEV(SILABS, MJS_TOSLINK), 318 USLCOM_DEV(SILABS, MSD_DASHHAWK), 319 USLCOM_DEV(SILABS, MULTIPLEX_RC), 320 USLCOM_DEV(SILABS, OPTRIS_MSPRO), 321 USLCOM_DEV(SILABS, POLOLU), 322 USLCOM_DEV(SILABS, PROCYON_AVS), 323 USLCOM_DEV(SILABS, SB_PARAMOUNT_ME), 324 USLCOM_DEV(SILABS, SUUNTO), 325 USLCOM_DEV(SILABS, TAMSMASTER), 326 USLCOM_DEV(SILABS, TELEGESIS_ETRX2), 327 USLCOM_DEV(SILABS, TRACIENT), 328 USLCOM_DEV(SILABS, TRAQMATE), 329 USLCOM_DEV(SILABS, USBCOUNT50), 330 USLCOM_DEV(SILABS, USBPULSE100), 331 USLCOM_DEV(SILABS, USBSCOPE50), 332 USLCOM_DEV(SILABS, USBWAVE12), 333 USLCOM_DEV(SILABS, V_PREON32), 334 USLCOM_DEV(SILABS, VSTABI), 335 USLCOM_DEV(SILABS, WAVIT), 336 USLCOM_DEV(SILABS, WMRBATT), 337 USLCOM_DEV(SILABS, WMRRIGBLASTER), 338 USLCOM_DEV(SILABS, WMRRIGTALK), 339 USLCOM_DEV(SILABS, ZEPHYR_BIO), 340 USLCOM_DEV(SILABS2, DCU11CLONE), 341 USLCOM_DEV(SILABS3, GPRS_MODEM), 342 USLCOM_DEV(SILABS4, 100EU_MODEM), 343 USLCOM_DEV(SYNTECH, CYPHERLAB100), 344 USLCOM_DEV(USI, MC60), 345 USLCOM_DEV(VAISALA, CABLE), 346 USLCOM_DEV(WAGO, SERVICECABLE), 347 USLCOM_DEV(WAVESENSE, JAZZ), 348 USLCOM_DEV(WESTMOUNTAIN, RIGBLASTER_ADVANTAGE), 349 USLCOM_DEV(WIENERPLEINBAUS, PL512), 350 USLCOM_DEV(WIENERPLEINBAUS, RCM), 351 USLCOM_DEV(WIENERPLEINBAUS, MPOD), 352 USLCOM_DEV(WIENERPLEINBAUS, CML), 353#undef USLCOM_DEV 354}; 355 356static device_method_t uslcom_methods[] = { 357 DEVMETHOD(device_probe, uslcom_probe), 358 DEVMETHOD(device_attach, uslcom_attach), 359 DEVMETHOD(device_detach, uslcom_detach), 360 DEVMETHOD_END 361}; 362 363static devclass_t uslcom_devclass; 364 365static driver_t uslcom_driver = { 366 .name = "uslcom", 367 .methods = uslcom_methods, 368 .size = sizeof(struct uslcom_softc), 369}; 370 371DRIVER_MODULE(uslcom, uhub, uslcom_driver, uslcom_devclass, NULL, 0); 372MODULE_DEPEND(uslcom, ucom, 1, 1, 1); 373MODULE_DEPEND(uslcom, usb, 1, 1, 1); 374MODULE_VERSION(uslcom, 1); 375 376static void 377uslcom_watchdog(void *arg) 378{ 379 struct uslcom_softc *sc = arg; 380 381 mtx_assert(&sc->sc_mtx, MA_OWNED); 382 383 usbd_transfer_start(sc->sc_xfer[USLCOM_CTRL_DT_RD]); 384 385 usb_callout_reset(&sc->sc_watchdog, 386 hz / 4, &uslcom_watchdog, sc); 387} 388 389static int 390uslcom_probe(device_t dev) 391{ 392 struct usb_attach_arg *uaa = device_get_ivars(dev); 393 394 DPRINTFN(11, "\n"); 395 396 if (uaa->usb_mode != USB_MODE_HOST) { 397 return (ENXIO); 398 } 399 if (uaa->info.bConfigIndex != USLCOM_CONFIG_INDEX) { 400 return (ENXIO); 401 } 402 return (usbd_lookup_id_by_uaa(uslcom_devs, sizeof(uslcom_devs), uaa)); 403} 404 405static int 406uslcom_attach(device_t dev) 407{ 408 struct usb_attach_arg *uaa = device_get_ivars(dev); 409 struct uslcom_softc *sc = device_get_softc(dev); 410 int error; 411 412 DPRINTFN(11, "\n"); 413 414 device_set_usb_desc(dev); 415 mtx_init(&sc->sc_mtx, "uslcom", NULL, MTX_DEF); 416 ucom_ref(&sc->sc_super_ucom); 417 usb_callout_init_mtx(&sc->sc_watchdog, &sc->sc_mtx, 0); 418 419 sc->sc_udev = uaa->device; 420 /* use the interface number from the USB interface descriptor */ 421 sc->sc_iface_no = uaa->info.bIfaceNum; 422 423 error = usbd_transfer_setup(uaa->device, 424 &uaa->info.bIfaceIndex, sc->sc_xfer, uslcom_config, 425 USLCOM_N_TRANSFER, sc, &sc->sc_mtx); 426 if (error) { 427 DPRINTF("one or more missing USB endpoints, " 428 "error=%s\n", usbd_errstr(error)); 429 goto detach; 430 } 431 /* clear stall at first run */ 432 mtx_lock(&sc->sc_mtx); 433 usbd_xfer_set_stall(sc->sc_xfer[USLCOM_BULK_DT_WR]); 434 usbd_xfer_set_stall(sc->sc_xfer[USLCOM_BULK_DT_RD]); 435 mtx_unlock(&sc->sc_mtx); 436 437 error = ucom_attach(&sc->sc_super_ucom, &sc->sc_ucom, 1, sc, 438 &uslcom_callback, &sc->sc_mtx); 439 if (error) { 440 goto detach; 441 } 442 ucom_set_pnpinfo_usb(&sc->sc_super_ucom, dev); 443 444 return (0); 445 446detach: 447 uslcom_detach(dev); 448 return (ENXIO); 449} 450 451static int 452uslcom_detach(device_t dev) 453{ 454 struct uslcom_softc *sc = device_get_softc(dev); 455 456 DPRINTF("sc=%p\n", sc); 457 458 ucom_detach(&sc->sc_super_ucom, &sc->sc_ucom); 459 usbd_transfer_unsetup(sc->sc_xfer, USLCOM_N_TRANSFER); 460 461 usb_callout_drain(&sc->sc_watchdog); 462 463 device_claim_softc(dev); 464 465 uslcom_free_softc(sc); 466 467 return (0); 468} 469 470UCOM_UNLOAD_DRAIN(uslcom); 471 472static void 473uslcom_free_softc(struct uslcom_softc *sc) 474{ 475 if (ucom_unref(&sc->sc_super_ucom)) { 476 mtx_destroy(&sc->sc_mtx); 477 device_free_softc(sc); 478 } 479} 480 481static void 482uslcom_free(struct ucom_softc *ucom) 483{ 484 uslcom_free_softc(ucom->sc_parent); 485} 486 487static void 488uslcom_open(struct ucom_softc *ucom) 489{ 490 struct uslcom_softc *sc = ucom->sc_parent; 491 struct usb_device_request req; 492 493 req.bmRequestType = USLCOM_WRITE; 494 req.bRequest = USLCOM_IFC_ENABLE; 495 USETW(req.wValue, USLCOM_IFC_ENABLE_EN); 496 USETW(req.wIndex, sc->sc_iface_no); 497 USETW(req.wLength, 0); 498 499 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 500 &req, NULL, 0, 1000)) { 501 DPRINTF("UART enable failed (ignored)\n"); 502 } 503 504 /* start polling status */ 505 uslcom_watchdog(sc); 506} 507 508static void 509uslcom_close(struct ucom_softc *ucom) 510{ 511 struct uslcom_softc *sc = ucom->sc_parent; 512 struct usb_device_request req; 513 514 /* stop polling status */ 515 usb_callout_stop(&sc->sc_watchdog); 516 517 req.bmRequestType = USLCOM_WRITE; 518 req.bRequest = USLCOM_IFC_ENABLE; 519 USETW(req.wValue, USLCOM_IFC_ENABLE_DIS); 520 USETW(req.wIndex, sc->sc_iface_no); 521 USETW(req.wLength, 0); 522 523 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 524 &req, NULL, 0, 1000)) { 525 DPRINTF("UART disable failed (ignored)\n"); 526 } 527} 528 529static void 530uslcom_set_dtr(struct ucom_softc *ucom, uint8_t onoff) 531{ 532 struct uslcom_softc *sc = ucom->sc_parent; 533 struct usb_device_request req; 534 uint16_t ctl; 535 536 DPRINTF("onoff = %d\n", onoff); 537 538 ctl = onoff ? USLCOM_MHS_DTR_ON : 0; 539 ctl |= USLCOM_MHS_DTR_SET; 540 541 req.bmRequestType = USLCOM_WRITE; 542 req.bRequest = USLCOM_SET_MHS; 543 USETW(req.wValue, ctl); 544 USETW(req.wIndex, sc->sc_iface_no); 545 USETW(req.wLength, 0); 546 547 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 548 &req, NULL, 0, 1000)) { 549 DPRINTF("Setting DTR failed (ignored)\n"); 550 } 551} 552 553static void 554uslcom_set_rts(struct ucom_softc *ucom, uint8_t onoff) 555{ 556 struct uslcom_softc *sc = ucom->sc_parent; 557 struct usb_device_request req; 558 uint16_t ctl; 559 560 DPRINTF("onoff = %d\n", onoff); 561 562 ctl = onoff ? USLCOM_MHS_RTS_ON : 0; 563 ctl |= USLCOM_MHS_RTS_SET; 564 565 req.bmRequestType = USLCOM_WRITE; 566 req.bRequest = USLCOM_SET_MHS; 567 USETW(req.wValue, ctl); 568 USETW(req.wIndex, sc->sc_iface_no); 569 USETW(req.wLength, 0); 570 571 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 572 &req, NULL, 0, 1000)) { 573 DPRINTF("Setting DTR failed (ignored)\n"); 574 } 575} 576 577static int 578uslcom_pre_param(struct ucom_softc *ucom, struct termios *t) 579{ 580 if (t->c_ospeed <= 0 || t->c_ospeed > 921600) 581 return (EINVAL); 582 return (0); 583} 584 585static void 586uslcom_param(struct ucom_softc *ucom, struct termios *t) 587{ 588 struct uslcom_softc *sc = ucom->sc_parent; 589 struct usb_device_request req; 590 uint32_t baudrate, flowctrl[4]; 591 uint16_t data; 592 593 DPRINTF("\n"); 594 595 baudrate = t->c_ospeed; 596 req.bmRequestType = USLCOM_WRITE; 597 req.bRequest = USLCOM_SET_BAUDRATE; 598 USETW(req.wValue, 0); 599 USETW(req.wIndex, sc->sc_iface_no); 600 USETW(req.wLength, sizeof(baudrate)); 601 602 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 603 &req, &baudrate, 0, 1000)) { 604 DPRINTF("Set baudrate failed (ignored)\n"); 605 } 606 607 if (t->c_cflag & CSTOPB) 608 data = USLCOM_STOP_BITS_2; 609 else 610 data = USLCOM_STOP_BITS_1; 611 if (t->c_cflag & PARENB) { 612 if (t->c_cflag & PARODD) 613 data |= USLCOM_PARITY_ODD; 614 else 615 data |= USLCOM_PARITY_EVEN; 616 } else 617 data |= USLCOM_PARITY_NONE; 618 switch (t->c_cflag & CSIZE) { 619 case CS5: 620 data |= USLCOM_SET_DATA_BITS(5); 621 break; 622 case CS6: 623 data |= USLCOM_SET_DATA_BITS(6); 624 break; 625 case CS7: 626 data |= USLCOM_SET_DATA_BITS(7); 627 break; 628 case CS8: 629 data |= USLCOM_SET_DATA_BITS(8); 630 break; 631 } 632 633 req.bmRequestType = USLCOM_WRITE; 634 req.bRequest = USLCOM_SET_LINE_CTL; 635 USETW(req.wValue, data); 636 USETW(req.wIndex, sc->sc_iface_no); 637 USETW(req.wLength, 0); 638 639 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 640 &req, NULL, 0, 1000)) { 641 DPRINTF("Set format failed (ignored)\n"); 642 } 643 644 if (t->c_cflag & CRTSCTS) { 645 flowctrl[0] = htole32(USLCOM_FLOW_DTR_ON | USLCOM_FLOW_CTS_HS); 646 flowctrl[1] = htole32(USLCOM_FLOW_RTS_HS); 647 } else { 648 flowctrl[0] = htole32(USLCOM_FLOW_DTR_ON); 649 flowctrl[1] = htole32(USLCOM_FLOW_RTS_ON); 650 } 651 flowctrl[2] = 0; 652 flowctrl[3] = 0; 653 req.bmRequestType = USLCOM_WRITE; 654 req.bRequest = USLCOM_SET_FLOW; 655 USETW(req.wValue, 0); 656 USETW(req.wIndex, sc->sc_iface_no); 657 USETW(req.wLength, sizeof(flowctrl)); 658 659 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 660 &req, flowctrl, 0, 1000)) { 661 DPRINTF("Set flowcontrol failed (ignored)\n"); 662 } 663} 664 665static void 666uslcom_get_status(struct ucom_softc *ucom, uint8_t *lsr, uint8_t *msr) 667{ 668 struct uslcom_softc *sc = ucom->sc_parent; 669 670 DPRINTF("\n"); 671 672 *lsr = sc->sc_lsr; 673 *msr = sc->sc_msr; 674} 675 676static void 677uslcom_set_break(struct ucom_softc *ucom, uint8_t onoff) 678{ 679 struct uslcom_softc *sc = ucom->sc_parent; 680 struct usb_device_request req; 681 uint16_t brk = onoff ? USLCOM_SET_BREAK_ON : USLCOM_SET_BREAK_OFF; 682 683 req.bmRequestType = USLCOM_WRITE; 684 req.bRequest = USLCOM_SET_BREAK; 685 USETW(req.wValue, brk); 686 USETW(req.wIndex, sc->sc_iface_no); 687 USETW(req.wLength, 0); 688 689 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 690 &req, NULL, 0, 1000)) { 691 DPRINTF("Set BREAK failed (ignored)\n"); 692 } 693} 694 695static int 696uslcom_ioctl(struct ucom_softc *ucom, uint32_t cmd, caddr_t data, 697 int flag, struct thread *td) 698{ 699 struct uslcom_softc *sc = ucom->sc_parent; 700 struct usb_device_request req; 701 int error = 0; 702 uint8_t latch; 703 704 DPRINTF("cmd=0x%08x\n", cmd); 705 706 switch (cmd) { 707 case USB_GET_GPIO: 708 req.bmRequestType = USLCOM_READ; 709 req.bRequest = USLCOM_VENDOR_SPECIFIC; 710 USETW(req.wValue, USLCOM_READ_LATCH); 711 USETW(req.wIndex, 0); 712 USETW(req.wLength, sizeof(latch)); 713 714 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 715 &req, &latch, 0, 1000)) { 716 DPRINTF("Get LATCH failed\n"); 717 error = EIO; 718 } 719 *(int *)data = latch; 720 break; 721 722 case USB_SET_GPIO: 723 req.bmRequestType = USLCOM_WRITE; 724 req.bRequest = USLCOM_VENDOR_SPECIFIC; 725 USETW(req.wValue, USLCOM_WRITE_LATCH); 726 USETW(req.wIndex, (*(int *)data)); 727 USETW(req.wLength, 0); 728 729 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 730 &req, NULL, 0, 1000)) { 731 DPRINTF("Set LATCH failed\n"); 732 error = EIO; 733 } 734 break; 735 736 default: 737 DPRINTF("Unknown IOCTL\n"); 738 error = ENOIOCTL; 739 break; 740 } 741 return (error); 742} 743 744static void 745uslcom_write_callback(struct usb_xfer *xfer, usb_error_t error) 746{ 747 struct uslcom_softc *sc = usbd_xfer_softc(xfer); 748 struct usb_page_cache *pc; 749 uint32_t actlen; 750 751 switch (USB_GET_STATE(xfer)) { 752 case USB_ST_SETUP: 753 case USB_ST_TRANSFERRED: 754tr_setup: 755 pc = usbd_xfer_get_frame(xfer, 0); 756 if (ucom_get_data(&sc->sc_ucom, pc, 0, 757 USLCOM_BULK_BUF_SIZE, &actlen)) { 758 759 DPRINTF("actlen = %d\n", actlen); 760 761 usbd_xfer_set_frame_len(xfer, 0, actlen); 762 usbd_transfer_submit(xfer); 763 } 764 return; 765 766 default: /* Error */ 767 if (error != USB_ERR_CANCELLED) { 768 /* try to clear stall first */ 769 usbd_xfer_set_stall(xfer); 770 goto tr_setup; 771 } 772 return; 773 } 774} 775 776static void 777uslcom_read_callback(struct usb_xfer *xfer, usb_error_t error) 778{ 779 struct uslcom_softc *sc = usbd_xfer_softc(xfer); 780 struct usb_page_cache *pc; 781 int actlen; 782 783 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 784 785 switch (USB_GET_STATE(xfer)) { 786 case USB_ST_TRANSFERRED: 787 pc = usbd_xfer_get_frame(xfer, 0); 788 ucom_put_data(&sc->sc_ucom, pc, 0, actlen); 789 790 case USB_ST_SETUP: 791tr_setup: 792 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 793 usbd_transfer_submit(xfer); 794 return; 795 796 default: /* Error */ 797 if (error != USB_ERR_CANCELLED) { 798 /* try to clear stall first */ 799 usbd_xfer_set_stall(xfer); 800 goto tr_setup; 801 } 802 return; 803 } 804} 805 806static void 807uslcom_control_callback(struct usb_xfer *xfer, usb_error_t error) 808{ 809 struct uslcom_softc *sc = usbd_xfer_softc(xfer); 810 struct usb_page_cache *pc; 811 struct usb_device_request req; 812 uint8_t msr = 0; 813 uint8_t buf; 814 815 switch (USB_GET_STATE(xfer)) { 816 case USB_ST_TRANSFERRED: 817 pc = usbd_xfer_get_frame(xfer, 1); 818 usbd_copy_out(pc, 0, &buf, sizeof(buf)); 819 if (buf & USLCOM_MHS_CTS) 820 msr |= SER_CTS; 821 if (buf & USLCOM_MHS_DSR) 822 msr |= SER_DSR; 823 if (buf & USLCOM_MHS_RI) 824 msr |= SER_RI; 825 if (buf & USLCOM_MHS_DCD) 826 msr |= SER_DCD; 827 828 if (msr != sc->sc_msr) { 829 DPRINTF("status change msr=0x%02x " 830 "(was 0x%02x)\n", msr, sc->sc_msr); 831 sc->sc_msr = msr; 832 ucom_status_change(&sc->sc_ucom); 833 } 834 break; 835 836 case USB_ST_SETUP: 837 req.bmRequestType = USLCOM_READ; 838 req.bRequest = USLCOM_GET_MDMSTS; 839 USETW(req.wValue, 0); 840 USETW(req.wIndex, sc->sc_iface_no); 841 USETW(req.wLength, sizeof(buf)); 842 843 usbd_xfer_set_frames(xfer, 2); 844 usbd_xfer_set_frame_len(xfer, 0, sizeof(req)); 845 usbd_xfer_set_frame_len(xfer, 1, sizeof(buf)); 846 847 pc = usbd_xfer_get_frame(xfer, 0); 848 usbd_copy_in(pc, 0, &req, sizeof(req)); 849 usbd_transfer_submit(xfer); 850 break; 851 852 default: /* error */ 853 if (error != USB_ERR_CANCELLED) 854 DPRINTF("error=%s\n", usbd_errstr(error)); 855 break; 856 } 857} 858 859static void 860uslcom_start_read(struct ucom_softc *ucom) 861{ 862 struct uslcom_softc *sc = ucom->sc_parent; 863 864 /* start read endpoint */ 865 usbd_transfer_start(sc->sc_xfer[USLCOM_BULK_DT_RD]); 866} 867 868static void 869uslcom_stop_read(struct ucom_softc *ucom) 870{ 871 struct uslcom_softc *sc = ucom->sc_parent; 872 873 /* stop read endpoint */ 874 usbd_transfer_stop(sc->sc_xfer[USLCOM_BULK_DT_RD]); 875} 876 877static void 878uslcom_start_write(struct ucom_softc *ucom) 879{ 880 struct uslcom_softc *sc = ucom->sc_parent; 881 882 usbd_transfer_start(sc->sc_xfer[USLCOM_BULK_DT_WR]); 883} 884 885static void 886uslcom_stop_write(struct ucom_softc *ucom) 887{ 888 struct uslcom_softc *sc = ucom->sc_parent; 889 890 usbd_transfer_stop(sc->sc_xfer[USLCOM_BULK_DT_WR]); 891} 892 893static void 894uslcom_poll(struct ucom_softc *ucom) 895{ 896 struct uslcom_softc *sc = ucom->sc_parent; 897 usbd_transfer_poll(sc->sc_xfer, USLCOM_N_TRANSFER); 898} 899