1/* $OpenBSD: uslcom.c,v 1.17 2007/11/24 10:52:12 jsg Exp $ */ 2 3#include <sys/cdefs.h> 4__FBSDID("$FreeBSD: releng/11.0/sys/dev/usb/serial/uslcom.c 292080 2015-12-11 05:28:00Z imp $"); 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_RWTUN, 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_GET_PARTNUM 0x370B 123#define USLCOM_WRITE_LATCH 0x37E1 124#define USLCOM_READ_LATCH 0x00C2 125 126/* USLCOM_GET_PARTNUM values from hardware */ 127#define USLCOM_PARTNUM_CP2101 1 128#define USLCOM_PARTNUM_CP2102 2 129#define USLCOM_PARTNUM_CP2103 3 130#define USLCOM_PARTNUM_CP2104 4 131#define USLCOM_PARTNUM_CP2105 5 132 133enum { 134 USLCOM_BULK_DT_WR, 135 USLCOM_BULK_DT_RD, 136 USLCOM_CTRL_DT_RD, 137 USLCOM_N_TRANSFER, 138}; 139 140struct uslcom_softc { 141 struct ucom_super_softc sc_super_ucom; 142 struct ucom_softc sc_ucom; 143 struct usb_callout sc_watchdog; 144 145 struct usb_xfer *sc_xfer[USLCOM_N_TRANSFER]; 146 struct usb_device *sc_udev; 147 struct mtx sc_mtx; 148 149 uint8_t sc_msr; 150 uint8_t sc_lsr; 151 uint8_t sc_iface_no; 152 uint8_t sc_partnum; 153}; 154 155static device_probe_t uslcom_probe; 156static device_attach_t uslcom_attach; 157static device_detach_t uslcom_detach; 158static void uslcom_free_softc(struct uslcom_softc *); 159 160static usb_callback_t uslcom_write_callback; 161static usb_callback_t uslcom_read_callback; 162static usb_callback_t uslcom_control_callback; 163 164static void uslcom_free(struct ucom_softc *); 165static void uslcom_open(struct ucom_softc *); 166static void uslcom_close(struct ucom_softc *); 167static uint8_t uslcom_get_partnum(struct uslcom_softc *); 168static void uslcom_set_dtr(struct ucom_softc *, uint8_t); 169static void uslcom_set_rts(struct ucom_softc *, uint8_t); 170static void uslcom_set_break(struct ucom_softc *, uint8_t); 171static int uslcom_ioctl(struct ucom_softc *, uint32_t, caddr_t, int, 172 struct thread *); 173static int uslcom_pre_param(struct ucom_softc *, struct termios *); 174static void uslcom_param(struct ucom_softc *, struct termios *); 175static void uslcom_get_status(struct ucom_softc *, uint8_t *, uint8_t *); 176static void uslcom_start_read(struct ucom_softc *); 177static void uslcom_stop_read(struct ucom_softc *); 178static void uslcom_start_write(struct ucom_softc *); 179static void uslcom_stop_write(struct ucom_softc *); 180static void uslcom_poll(struct ucom_softc *ucom); 181 182static const struct usb_config uslcom_config[USLCOM_N_TRANSFER] = { 183 184 [USLCOM_BULK_DT_WR] = { 185 .type = UE_BULK, 186 .endpoint = UE_ADDR_ANY, 187 .direction = UE_DIR_OUT, 188 .bufsize = USLCOM_BULK_BUF_SIZE, 189 .flags = {.pipe_bof = 1,}, 190 .callback = &uslcom_write_callback, 191 }, 192 193 [USLCOM_BULK_DT_RD] = { 194 .type = UE_BULK, 195 .endpoint = UE_ADDR_ANY, 196 .direction = UE_DIR_IN, 197 .bufsize = USLCOM_BULK_BUF_SIZE, 198 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 199 .callback = &uslcom_read_callback, 200 }, 201 [USLCOM_CTRL_DT_RD] = { 202 .type = UE_CONTROL, 203 .endpoint = 0x00, 204 .direction = UE_DIR_ANY, 205 .bufsize = sizeof(struct usb_device_request) + 8, 206 .flags = {.pipe_bof = 1,}, 207 .callback = &uslcom_control_callback, 208 .timeout = 1000, /* 1 second timeout */ 209 }, 210}; 211 212static struct ucom_callback uslcom_callback = { 213 .ucom_cfg_open = &uslcom_open, 214 .ucom_cfg_close = &uslcom_close, 215 .ucom_cfg_get_status = &uslcom_get_status, 216 .ucom_cfg_set_dtr = &uslcom_set_dtr, 217 .ucom_cfg_set_rts = &uslcom_set_rts, 218 .ucom_cfg_set_break = &uslcom_set_break, 219 .ucom_ioctl = &uslcom_ioctl, 220 .ucom_cfg_param = &uslcom_param, 221 .ucom_pre_param = &uslcom_pre_param, 222 .ucom_start_read = &uslcom_start_read, 223 .ucom_stop_read = &uslcom_stop_read, 224 .ucom_start_write = &uslcom_start_write, 225 .ucom_stop_write = &uslcom_stop_write, 226 .ucom_poll = &uslcom_poll, 227 .ucom_free = &uslcom_free, 228}; 229 230static const STRUCT_USB_HOST_ID uslcom_devs[] = { 231#define USLCOM_DEV(v,p) { USB_VP(USB_VENDOR_##v, USB_PRODUCT_##v##_##p) } 232 USLCOM_DEV(BALTECH, CARDREADER), 233 USLCOM_DEV(CLIPSAL, 5000CT2), 234 USLCOM_DEV(CLIPSAL, 5500PACA), 235 USLCOM_DEV(CLIPSAL, 5500PCU), 236 USLCOM_DEV(CLIPSAL, 560884), 237 USLCOM_DEV(CLIPSAL, 5800PC), 238 USLCOM_DEV(CLIPSAL, C5000CT2), 239 USLCOM_DEV(CLIPSAL, L51xx), 240 USLCOM_DEV(DATAAPEX, MULTICOM), 241 USLCOM_DEV(DELL, DW700), 242 USLCOM_DEV(DIGIANSWER, ZIGBEE802154), 243 USLCOM_DEV(DYNASTREAM, ANTDEVBOARD), 244 USLCOM_DEV(DYNASTREAM, ANTDEVBOARD2), 245 USLCOM_DEV(DYNASTREAM, ANT2USB), 246 USLCOM_DEV(ELV, USBI2C), 247 USLCOM_DEV(FESTO, CMSP), 248 USLCOM_DEV(FESTO, CPX_USB), 249 USLCOM_DEV(FOXCONN, PIRELLI_DP_L10), 250 USLCOM_DEV(FOXCONN, TCOM_TC_300), 251 USLCOM_DEV(GEMALTO, PROXPU), 252 USLCOM_DEV(JABLOTRON, PC60B), 253 USLCOM_DEV(KAMSTRUP, OPTICALEYE), 254 USLCOM_DEV(KAMSTRUP, MBUS_250D), 255 USLCOM_DEV(LAKESHORE, 121), 256 USLCOM_DEV(LAKESHORE, 218A), 257 USLCOM_DEV(LAKESHORE, 219), 258 USLCOM_DEV(LAKESHORE, 233), 259 USLCOM_DEV(LAKESHORE, 235), 260 USLCOM_DEV(LAKESHORE, 335), 261 USLCOM_DEV(LAKESHORE, 336), 262 USLCOM_DEV(LAKESHORE, 350), 263 USLCOM_DEV(LAKESHORE, 371), 264 USLCOM_DEV(LAKESHORE, 411), 265 USLCOM_DEV(LAKESHORE, 425), 266 USLCOM_DEV(LAKESHORE, 455A), 267 USLCOM_DEV(LAKESHORE, 465), 268 USLCOM_DEV(LAKESHORE, 475A), 269 USLCOM_DEV(LAKESHORE, 625A), 270 USLCOM_DEV(LAKESHORE, 642A), 271 USLCOM_DEV(LAKESHORE, 648), 272 USLCOM_DEV(LAKESHORE, 737), 273 USLCOM_DEV(LAKESHORE, 776), 274 USLCOM_DEV(LINKINSTRUMENTS, MSO19), 275 USLCOM_DEV(LINKINSTRUMENTS, MSO28), 276 USLCOM_DEV(LINKINSTRUMENTS, MSO28_2), 277 USLCOM_DEV(MEI, CASHFLOW_SC), 278 USLCOM_DEV(MEI, S2000), 279 USLCOM_DEV(NETGEAR, M4100), 280 USLCOM_DEV(OWEN, AC4), 281 USLCOM_DEV(OWL, CM_160), 282 USLCOM_DEV(PHILIPS, ACE1001), 283 USLCOM_DEV(PLX, CA42), 284 USLCOM_DEV(RENESAS, RX610), 285 USLCOM_DEV(SEL, C662), 286 USLCOM_DEV(SILABS, AC_SERV_CAN), 287 USLCOM_DEV(SILABS, AC_SERV_CIS), 288 USLCOM_DEV(SILABS, AC_SERV_IBUS), 289 USLCOM_DEV(SILABS, AC_SERV_OBD), 290 USLCOM_DEV(SILABS, AEROCOMM), 291 USLCOM_DEV(SILABS, AMBER_AMB2560), 292 USLCOM_DEV(SILABS, ARGUSISP), 293 USLCOM_DEV(SILABS, ARKHAM_DS101_A), 294 USLCOM_DEV(SILABS, ARKHAM_DS101_M), 295 USLCOM_DEV(SILABS, ARYGON_MIFARE), 296 USLCOM_DEV(SILABS, AVIT_USB_TTL), 297 USLCOM_DEV(SILABS, B_G_H3000), 298 USLCOM_DEV(SILABS, BALLUFF_RFID), 299 USLCOM_DEV(SILABS, BEI_VCP), 300 USLCOM_DEV(SILABS, BSM7DUSB), 301 USLCOM_DEV(SILABS, BURNSIDE), 302 USLCOM_DEV(SILABS, C2_EDGE_MODEM), 303 USLCOM_DEV(SILABS, CP2102), 304 USLCOM_DEV(SILABS, CP210X_2), 305 USLCOM_DEV(SILABS, CP210X_3), 306 USLCOM_DEV(SILABS, CP210X_4), 307 USLCOM_DEV(SILABS, CRUMB128), 308 USLCOM_DEV(SILABS, CYGNAL), 309 USLCOM_DEV(SILABS, CYGNAL_DEBUG), 310 USLCOM_DEV(SILABS, CYGNAL_GPS), 311 USLCOM_DEV(SILABS, DEGREE), 312 USLCOM_DEV(SILABS, DEKTEK_DTAPLUS), 313 USLCOM_DEV(SILABS, EMS_C1007), 314 USLCOM_DEV(SILABS, HAMLINKUSB), 315 USLCOM_DEV(SILABS, HELICOM), 316 USLCOM_DEV(SILABS, IMS_USB_RS422), 317 USLCOM_DEV(SILABS, INFINITY_MIC), 318 USLCOM_DEV(SILABS, INGENI_ZIGBEE), 319 USLCOM_DEV(SILABS, INSYS_MODEM), 320 USLCOM_DEV(SILABS, IRZ_SG10), 321 USLCOM_DEV(SILABS, KYOCERA_GPS), 322 USLCOM_DEV(SILABS, LIPOWSKY_HARP), 323 USLCOM_DEV(SILABS, LIPOWSKY_JTAG), 324 USLCOM_DEV(SILABS, LIPOWSKY_LIN), 325 USLCOM_DEV(SILABS, MC35PU), 326 USLCOM_DEV(SILABS, MMB_ZIGBEE), 327 USLCOM_DEV(SILABS, MJS_TOSLINK), 328 USLCOM_DEV(SILABS, MSD_DASHHAWK), 329 USLCOM_DEV(SILABS, MULTIPLEX_RC), 330 USLCOM_DEV(SILABS, OPTRIS_MSPRO), 331 USLCOM_DEV(SILABS, POLOLU), 332 USLCOM_DEV(SILABS, PROCYON_AVS), 333 USLCOM_DEV(SILABS, SB_PARAMOUNT_ME), 334 USLCOM_DEV(SILABS, SUUNTO), 335 USLCOM_DEV(SILABS, TAMSMASTER), 336 USLCOM_DEV(SILABS, TELEGESIS_ETRX2), 337 USLCOM_DEV(SILABS, TRACIENT), 338 USLCOM_DEV(SILABS, TRAQMATE), 339 USLCOM_DEV(SILABS, USBCOUNT50), 340 USLCOM_DEV(SILABS, USBPULSE100), 341 USLCOM_DEV(SILABS, USBSCOPE50), 342 USLCOM_DEV(SILABS, USBWAVE12), 343 USLCOM_DEV(SILABS, V_PREON32), 344 USLCOM_DEV(SILABS, VSTABI), 345 USLCOM_DEV(SILABS, WAVIT), 346 USLCOM_DEV(SILABS, WMRBATT), 347 USLCOM_DEV(SILABS, WMRRIGBLASTER), 348 USLCOM_DEV(SILABS, WMRRIGTALK), 349 USLCOM_DEV(SILABS, ZEPHYR_BIO), 350 USLCOM_DEV(SILABS2, DCU11CLONE), 351 USLCOM_DEV(SILABS3, GPRS_MODEM), 352 USLCOM_DEV(SILABS4, 100EU_MODEM), 353 USLCOM_DEV(SYNTECH, CYPHERLAB100), 354 USLCOM_DEV(USI, MC60), 355 USLCOM_DEV(VAISALA, CABLE), 356 USLCOM_DEV(WAGO, SERVICECABLE), 357 USLCOM_DEV(WAVESENSE, JAZZ), 358 USLCOM_DEV(WESTMOUNTAIN, RIGBLASTER_ADVANTAGE), 359 USLCOM_DEV(WIENERPLEINBAUS, PL512), 360 USLCOM_DEV(WIENERPLEINBAUS, RCM), 361 USLCOM_DEV(WIENERPLEINBAUS, MPOD), 362 USLCOM_DEV(WIENERPLEINBAUS, CML), 363#undef USLCOM_DEV 364}; 365 366static device_method_t uslcom_methods[] = { 367 DEVMETHOD(device_probe, uslcom_probe), 368 DEVMETHOD(device_attach, uslcom_attach), 369 DEVMETHOD(device_detach, uslcom_detach), 370 DEVMETHOD_END 371}; 372 373static devclass_t uslcom_devclass; 374 375static driver_t uslcom_driver = { 376 .name = "uslcom", 377 .methods = uslcom_methods, 378 .size = sizeof(struct uslcom_softc), 379}; 380 381DRIVER_MODULE(uslcom, uhub, uslcom_driver, uslcom_devclass, NULL, 0); 382MODULE_DEPEND(uslcom, ucom, 1, 1, 1); 383MODULE_DEPEND(uslcom, usb, 1, 1, 1); 384MODULE_VERSION(uslcom, 1); 385USB_PNP_HOST_INFO(uslcom_devs); 386 387static void 388uslcom_watchdog(void *arg) 389{ 390 struct uslcom_softc *sc = arg; 391 392 mtx_assert(&sc->sc_mtx, MA_OWNED); 393 394 usbd_transfer_start(sc->sc_xfer[USLCOM_CTRL_DT_RD]); 395 396 usb_callout_reset(&sc->sc_watchdog, 397 hz / 4, &uslcom_watchdog, sc); 398} 399 400static int 401uslcom_probe(device_t dev) 402{ 403 struct usb_attach_arg *uaa = device_get_ivars(dev); 404 405 DPRINTFN(11, "\n"); 406 407 if (uaa->usb_mode != USB_MODE_HOST) { 408 return (ENXIO); 409 } 410 if (uaa->info.bConfigIndex != USLCOM_CONFIG_INDEX) { 411 return (ENXIO); 412 } 413 return (usbd_lookup_id_by_uaa(uslcom_devs, sizeof(uslcom_devs), uaa)); 414} 415 416static int 417uslcom_attach(device_t dev) 418{ 419 struct usb_attach_arg *uaa = device_get_ivars(dev); 420 struct uslcom_softc *sc = device_get_softc(dev); 421 int error; 422 423 DPRINTFN(11, "\n"); 424 425 device_set_usb_desc(dev); 426 mtx_init(&sc->sc_mtx, "uslcom", NULL, MTX_DEF); 427 ucom_ref(&sc->sc_super_ucom); 428 usb_callout_init_mtx(&sc->sc_watchdog, &sc->sc_mtx, 0); 429 430 sc->sc_udev = uaa->device; 431 /* use the interface number from the USB interface descriptor */ 432 sc->sc_iface_no = uaa->info.bIfaceNum; 433 434 error = usbd_transfer_setup(uaa->device, 435 &uaa->info.bIfaceIndex, sc->sc_xfer, uslcom_config, 436 USLCOM_N_TRANSFER, sc, &sc->sc_mtx); 437 if (error) { 438 DPRINTF("one or more missing USB endpoints, " 439 "error=%s\n", usbd_errstr(error)); 440 goto detach; 441 } 442 /* clear stall at first run */ 443 mtx_lock(&sc->sc_mtx); 444 usbd_xfer_set_stall(sc->sc_xfer[USLCOM_BULK_DT_WR]); 445 usbd_xfer_set_stall(sc->sc_xfer[USLCOM_BULK_DT_RD]); 446 mtx_unlock(&sc->sc_mtx); 447 448 sc->sc_partnum = uslcom_get_partnum(sc); 449 450 error = ucom_attach(&sc->sc_super_ucom, &sc->sc_ucom, 1, sc, 451 &uslcom_callback, &sc->sc_mtx); 452 if (error) { 453 goto detach; 454 } 455 ucom_set_pnpinfo_usb(&sc->sc_super_ucom, dev); 456 457 return (0); 458 459detach: 460 uslcom_detach(dev); 461 return (ENXIO); 462} 463 464static int 465uslcom_detach(device_t dev) 466{ 467 struct uslcom_softc *sc = device_get_softc(dev); 468 469 DPRINTF("sc=%p\n", sc); 470 471 ucom_detach(&sc->sc_super_ucom, &sc->sc_ucom); 472 usbd_transfer_unsetup(sc->sc_xfer, USLCOM_N_TRANSFER); 473 474 usb_callout_drain(&sc->sc_watchdog); 475 476 device_claim_softc(dev); 477 478 uslcom_free_softc(sc); 479 480 return (0); 481} 482 483UCOM_UNLOAD_DRAIN(uslcom); 484 485static void 486uslcom_free_softc(struct uslcom_softc *sc) 487{ 488 if (ucom_unref(&sc->sc_super_ucom)) { 489 mtx_destroy(&sc->sc_mtx); 490 device_free_softc(sc); 491 } 492} 493 494static void 495uslcom_free(struct ucom_softc *ucom) 496{ 497 uslcom_free_softc(ucom->sc_parent); 498} 499 500static void 501uslcom_open(struct ucom_softc *ucom) 502{ 503 struct uslcom_softc *sc = ucom->sc_parent; 504 struct usb_device_request req; 505 506 req.bmRequestType = USLCOM_WRITE; 507 req.bRequest = USLCOM_IFC_ENABLE; 508 USETW(req.wValue, USLCOM_IFC_ENABLE_EN); 509 USETW(req.wIndex, sc->sc_iface_no); 510 USETW(req.wLength, 0); 511 512 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 513 &req, NULL, 0, 1000)) { 514 DPRINTF("UART enable failed (ignored)\n"); 515 } 516 517 /* start polling status */ 518 uslcom_watchdog(sc); 519} 520 521static void 522uslcom_close(struct ucom_softc *ucom) 523{ 524 struct uslcom_softc *sc = ucom->sc_parent; 525 struct usb_device_request req; 526 527 /* stop polling status */ 528 usb_callout_stop(&sc->sc_watchdog); 529 530 req.bmRequestType = USLCOM_WRITE; 531 req.bRequest = USLCOM_IFC_ENABLE; 532 USETW(req.wValue, USLCOM_IFC_ENABLE_DIS); 533 USETW(req.wIndex, sc->sc_iface_no); 534 USETW(req.wLength, 0); 535 536 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 537 &req, NULL, 0, 1000)) { 538 DPRINTF("UART disable failed (ignored)\n"); 539 } 540} 541 542static uint8_t 543uslcom_get_partnum(struct uslcom_softc *sc) 544{ 545 struct usb_device_request req; 546 uint8_t partnum; 547 548 /* Find specific chip type */ 549 partnum = 0; 550 req.bmRequestType = USLCOM_READ; 551 req.bRequest = USLCOM_VENDOR_SPECIFIC; 552 USETW(req.wValue, USLCOM_GET_PARTNUM); 553 USETW(req.wIndex, sc->sc_iface_no); 554 USETW(req.wLength, sizeof(partnum)); 555 556 if (usbd_do_request_flags(sc->sc_udev, NULL, 557 &req, &partnum, 0, NULL, 1000)) { 558 DPRINTF("GET_PARTNUM failed\n"); 559 } 560 561 return(partnum); 562} 563 564static void 565uslcom_set_dtr(struct ucom_softc *ucom, uint8_t onoff) 566{ 567 struct uslcom_softc *sc = ucom->sc_parent; 568 struct usb_device_request req; 569 uint16_t ctl; 570 571 DPRINTF("onoff = %d\n", onoff); 572 573 ctl = onoff ? USLCOM_MHS_DTR_ON : 0; 574 ctl |= USLCOM_MHS_DTR_SET; 575 576 req.bmRequestType = USLCOM_WRITE; 577 req.bRequest = USLCOM_SET_MHS; 578 USETW(req.wValue, ctl); 579 USETW(req.wIndex, sc->sc_iface_no); 580 USETW(req.wLength, 0); 581 582 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 583 &req, NULL, 0, 1000)) { 584 DPRINTF("Setting DTR failed (ignored)\n"); 585 } 586} 587 588static void 589uslcom_set_rts(struct ucom_softc *ucom, uint8_t onoff) 590{ 591 struct uslcom_softc *sc = ucom->sc_parent; 592 struct usb_device_request req; 593 uint16_t ctl; 594 595 DPRINTF("onoff = %d\n", onoff); 596 597 ctl = onoff ? USLCOM_MHS_RTS_ON : 0; 598 ctl |= USLCOM_MHS_RTS_SET; 599 600 req.bmRequestType = USLCOM_WRITE; 601 req.bRequest = USLCOM_SET_MHS; 602 USETW(req.wValue, ctl); 603 USETW(req.wIndex, sc->sc_iface_no); 604 USETW(req.wLength, 0); 605 606 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 607 &req, NULL, 0, 1000)) { 608 DPRINTF("Setting DTR failed (ignored)\n"); 609 } 610} 611 612static int 613uslcom_pre_param(struct ucom_softc *ucom, struct termios *t) 614{ 615 if (t->c_ospeed <= 0 || t->c_ospeed > 921600) 616 return (EINVAL); 617 return (0); 618} 619 620static void 621uslcom_param(struct ucom_softc *ucom, struct termios *t) 622{ 623 struct uslcom_softc *sc = ucom->sc_parent; 624 struct usb_device_request req; 625 uint32_t baudrate, flowctrl[4]; 626 uint16_t data; 627 628 DPRINTF("\n"); 629 630 baudrate = t->c_ospeed; 631 req.bmRequestType = USLCOM_WRITE; 632 req.bRequest = USLCOM_SET_BAUDRATE; 633 USETW(req.wValue, 0); 634 USETW(req.wIndex, sc->sc_iface_no); 635 USETW(req.wLength, sizeof(baudrate)); 636 637 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 638 &req, &baudrate, 0, 1000)) { 639 DPRINTF("Set baudrate failed (ignored)\n"); 640 } 641 642 if (t->c_cflag & CSTOPB) 643 data = USLCOM_STOP_BITS_2; 644 else 645 data = USLCOM_STOP_BITS_1; 646 if (t->c_cflag & PARENB) { 647 if (t->c_cflag & PARODD) 648 data |= USLCOM_PARITY_ODD; 649 else 650 data |= USLCOM_PARITY_EVEN; 651 } else 652 data |= USLCOM_PARITY_NONE; 653 switch (t->c_cflag & CSIZE) { 654 case CS5: 655 data |= USLCOM_SET_DATA_BITS(5); 656 break; 657 case CS6: 658 data |= USLCOM_SET_DATA_BITS(6); 659 break; 660 case CS7: 661 data |= USLCOM_SET_DATA_BITS(7); 662 break; 663 case CS8: 664 data |= USLCOM_SET_DATA_BITS(8); 665 break; 666 } 667 668 req.bmRequestType = USLCOM_WRITE; 669 req.bRequest = USLCOM_SET_LINE_CTL; 670 USETW(req.wValue, data); 671 USETW(req.wIndex, sc->sc_iface_no); 672 USETW(req.wLength, 0); 673 674 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 675 &req, NULL, 0, 1000)) { 676 DPRINTF("Set format failed (ignored)\n"); 677 } 678 679 if (t->c_cflag & CRTSCTS) { 680 flowctrl[0] = htole32(USLCOM_FLOW_DTR_ON | USLCOM_FLOW_CTS_HS); 681 flowctrl[1] = htole32(USLCOM_FLOW_RTS_HS); 682 } else { 683 flowctrl[0] = htole32(USLCOM_FLOW_DTR_ON); 684 flowctrl[1] = htole32(USLCOM_FLOW_RTS_ON); 685 } 686 flowctrl[2] = 0; 687 flowctrl[3] = 0; 688 req.bmRequestType = USLCOM_WRITE; 689 req.bRequest = USLCOM_SET_FLOW; 690 USETW(req.wValue, 0); 691 USETW(req.wIndex, sc->sc_iface_no); 692 USETW(req.wLength, sizeof(flowctrl)); 693 694 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 695 &req, flowctrl, 0, 1000)) { 696 DPRINTF("Set flowcontrol failed (ignored)\n"); 697 } 698} 699 700static void 701uslcom_get_status(struct ucom_softc *ucom, uint8_t *lsr, uint8_t *msr) 702{ 703 struct uslcom_softc *sc = ucom->sc_parent; 704 705 DPRINTF("\n"); 706 707 *lsr = sc->sc_lsr; 708 *msr = sc->sc_msr; 709} 710 711static void 712uslcom_set_break(struct ucom_softc *ucom, uint8_t onoff) 713{ 714 struct uslcom_softc *sc = ucom->sc_parent; 715 struct usb_device_request req; 716 uint16_t brk = onoff ? USLCOM_SET_BREAK_ON : USLCOM_SET_BREAK_OFF; 717 718 req.bmRequestType = USLCOM_WRITE; 719 req.bRequest = USLCOM_SET_BREAK; 720 USETW(req.wValue, brk); 721 USETW(req.wIndex, sc->sc_iface_no); 722 USETW(req.wLength, 0); 723 724 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 725 &req, NULL, 0, 1000)) { 726 DPRINTF("Set BREAK failed (ignored)\n"); 727 } 728} 729 730static int 731uslcom_ioctl(struct ucom_softc *ucom, uint32_t cmd, caddr_t data, 732 int flag, struct thread *td) 733{ 734 struct uslcom_softc *sc = ucom->sc_parent; 735 struct usb_device_request req; 736 int error = 0; 737 uint8_t latch; 738 739 DPRINTF("cmd=0x%08x\n", cmd); 740 741 switch (cmd) { 742 case USB_GET_GPIO: 743 if (sc->sc_partnum < USLCOM_PARTNUM_CP2103) { 744 error = ENODEV; 745 break; 746 } 747 req.bmRequestType = USLCOM_READ; 748 req.bRequest = USLCOM_VENDOR_SPECIFIC; 749 USETW(req.wValue, USLCOM_READ_LATCH); 750 USETW(req.wIndex, sc->sc_iface_no); 751 USETW(req.wLength, sizeof(latch)); 752 753 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 754 &req, &latch, 0, 1000)) { 755 DPRINTF("Get LATCH failed\n"); 756 error = EIO; 757 } 758 *(int *)data = latch; 759 break; 760 761 case USB_SET_GPIO: 762 if (sc->sc_partnum < USLCOM_PARTNUM_CP2103) 763 error = ENODEV; 764 else if ((sc->sc_partnum == USLCOM_PARTNUM_CP2103) || 765 (sc->sc_partnum == USLCOM_PARTNUM_CP2104)) { 766 req.bmRequestType = USLCOM_WRITE; 767 req.bRequest = USLCOM_VENDOR_SPECIFIC; 768 USETW(req.wValue, USLCOM_WRITE_LATCH); 769 USETW(req.wIndex, (*(int *)data)); 770 USETW(req.wLength, 0); 771 772 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 773 &req, NULL, 0, 1000)) { 774 DPRINTF("Set LATCH failed\n"); 775 error = EIO; 776 } 777 } else 778 error = ENODEV; /* Not yet */ 779 break; 780 781 default: 782 DPRINTF("Unknown IOCTL\n"); 783 error = ENOIOCTL; 784 break; 785 } 786 return (error); 787} 788 789static void 790uslcom_write_callback(struct usb_xfer *xfer, usb_error_t error) 791{ 792 struct uslcom_softc *sc = usbd_xfer_softc(xfer); 793 struct usb_page_cache *pc; 794 uint32_t actlen; 795 796 switch (USB_GET_STATE(xfer)) { 797 case USB_ST_SETUP: 798 case USB_ST_TRANSFERRED: 799tr_setup: 800 pc = usbd_xfer_get_frame(xfer, 0); 801 if (ucom_get_data(&sc->sc_ucom, pc, 0, 802 USLCOM_BULK_BUF_SIZE, &actlen)) { 803 804 DPRINTF("actlen = %d\n", actlen); 805 806 usbd_xfer_set_frame_len(xfer, 0, actlen); 807 usbd_transfer_submit(xfer); 808 } 809 return; 810 811 default: /* Error */ 812 if (error != USB_ERR_CANCELLED) { 813 /* try to clear stall first */ 814 usbd_xfer_set_stall(xfer); 815 goto tr_setup; 816 } 817 return; 818 } 819} 820 821static void 822uslcom_read_callback(struct usb_xfer *xfer, usb_error_t error) 823{ 824 struct uslcom_softc *sc = usbd_xfer_softc(xfer); 825 struct usb_page_cache *pc; 826 int actlen; 827 828 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 829 830 switch (USB_GET_STATE(xfer)) { 831 case USB_ST_TRANSFERRED: 832 pc = usbd_xfer_get_frame(xfer, 0); 833 ucom_put_data(&sc->sc_ucom, pc, 0, actlen); 834 835 case USB_ST_SETUP: 836tr_setup: 837 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 838 usbd_transfer_submit(xfer); 839 return; 840 841 default: /* Error */ 842 if (error != USB_ERR_CANCELLED) { 843 /* try to clear stall first */ 844 usbd_xfer_set_stall(xfer); 845 goto tr_setup; 846 } 847 return; 848 } 849} 850 851static void 852uslcom_control_callback(struct usb_xfer *xfer, usb_error_t error) 853{ 854 struct uslcom_softc *sc = usbd_xfer_softc(xfer); 855 struct usb_page_cache *pc; 856 struct usb_device_request req; 857 uint8_t msr = 0; 858 uint8_t buf; 859 860 switch (USB_GET_STATE(xfer)) { 861 case USB_ST_TRANSFERRED: 862 pc = usbd_xfer_get_frame(xfer, 1); 863 usbd_copy_out(pc, 0, &buf, sizeof(buf)); 864 if (buf & USLCOM_MHS_CTS) 865 msr |= SER_CTS; 866 if (buf & USLCOM_MHS_DSR) 867 msr |= SER_DSR; 868 if (buf & USLCOM_MHS_RI) 869 msr |= SER_RI; 870 if (buf & USLCOM_MHS_DCD) 871 msr |= SER_DCD; 872 873 if (msr != sc->sc_msr) { 874 DPRINTF("status change msr=0x%02x " 875 "(was 0x%02x)\n", msr, sc->sc_msr); 876 sc->sc_msr = msr; 877 ucom_status_change(&sc->sc_ucom); 878 } 879 break; 880 881 case USB_ST_SETUP: 882 req.bmRequestType = USLCOM_READ; 883 req.bRequest = USLCOM_GET_MDMSTS; 884 USETW(req.wValue, 0); 885 USETW(req.wIndex, sc->sc_iface_no); 886 USETW(req.wLength, sizeof(buf)); 887 888 usbd_xfer_set_frames(xfer, 2); 889 usbd_xfer_set_frame_len(xfer, 0, sizeof(req)); 890 usbd_xfer_set_frame_len(xfer, 1, sizeof(buf)); 891 892 pc = usbd_xfer_get_frame(xfer, 0); 893 usbd_copy_in(pc, 0, &req, sizeof(req)); 894 usbd_transfer_submit(xfer); 895 break; 896 897 default: /* error */ 898 if (error != USB_ERR_CANCELLED) 899 DPRINTF("error=%s\n", usbd_errstr(error)); 900 break; 901 } 902} 903 904static void 905uslcom_start_read(struct ucom_softc *ucom) 906{ 907 struct uslcom_softc *sc = ucom->sc_parent; 908 909 /* start read endpoint */ 910 usbd_transfer_start(sc->sc_xfer[USLCOM_BULK_DT_RD]); 911} 912 913static void 914uslcom_stop_read(struct ucom_softc *ucom) 915{ 916 struct uslcom_softc *sc = ucom->sc_parent; 917 918 /* stop read endpoint */ 919 usbd_transfer_stop(sc->sc_xfer[USLCOM_BULK_DT_RD]); 920} 921 922static void 923uslcom_start_write(struct ucom_softc *ucom) 924{ 925 struct uslcom_softc *sc = ucom->sc_parent; 926 927 usbd_transfer_start(sc->sc_xfer[USLCOM_BULK_DT_WR]); 928} 929 930static void 931uslcom_stop_write(struct ucom_softc *ucom) 932{ 933 struct uslcom_softc *sc = ucom->sc_parent; 934 935 usbd_transfer_stop(sc->sc_xfer[USLCOM_BULK_DT_WR]); 936} 937 938static void 939uslcom_poll(struct ucom_softc *ucom) 940{ 941 struct uslcom_softc *sc = ucom->sc_parent; 942 usbd_transfer_poll(sc->sc_xfer, USLCOM_N_TRANSFER); 943} 944