uslcom.c revision 239050
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 239050 2012-08-05 08:56:29Z 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; 144 145static usb_callback_t uslcom_write_callback; 146static usb_callback_t uslcom_read_callback; 147static usb_callback_t uslcom_control_callback; 148 149static void uslcom_open(struct ucom_softc *); 150static void uslcom_close(struct ucom_softc *); 151static void uslcom_set_dtr(struct ucom_softc *, uint8_t); 152static void uslcom_set_rts(struct ucom_softc *, uint8_t); 153static void uslcom_set_break(struct ucom_softc *, uint8_t); 154static int uslcom_ioctl(struct ucom_softc *, uint32_t, caddr_t, int, 155 struct thread *); 156static int uslcom_pre_param(struct ucom_softc *, struct termios *); 157static void uslcom_param(struct ucom_softc *, struct termios *); 158static void uslcom_get_status(struct ucom_softc *, uint8_t *, uint8_t *); 159static void uslcom_start_read(struct ucom_softc *); 160static void uslcom_stop_read(struct ucom_softc *); 161static void uslcom_start_write(struct ucom_softc *); 162static void uslcom_stop_write(struct ucom_softc *); 163static void uslcom_poll(struct ucom_softc *ucom); 164 165static const struct usb_config uslcom_config[USLCOM_N_TRANSFER] = { 166 167 [USLCOM_BULK_DT_WR] = { 168 .type = UE_BULK, 169 .endpoint = UE_ADDR_ANY, 170 .direction = UE_DIR_OUT, 171 .bufsize = USLCOM_BULK_BUF_SIZE, 172 .flags = {.pipe_bof = 1,}, 173 .callback = &uslcom_write_callback, 174 }, 175 176 [USLCOM_BULK_DT_RD] = { 177 .type = UE_BULK, 178 .endpoint = UE_ADDR_ANY, 179 .direction = UE_DIR_IN, 180 .bufsize = USLCOM_BULK_BUF_SIZE, 181 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 182 .callback = &uslcom_read_callback, 183 }, 184 [USLCOM_CTRL_DT_RD] = { 185 .type = UE_CONTROL, 186 .endpoint = 0x00, 187 .direction = UE_DIR_ANY, 188 .bufsize = sizeof(struct usb_device_request) + 8, 189 .flags = {.pipe_bof = 1,}, 190 .callback = &uslcom_control_callback, 191 .timeout = 1000, /* 1 second timeout */ 192 }, 193}; 194 195static struct ucom_callback uslcom_callback = { 196 .ucom_cfg_open = &uslcom_open, 197 .ucom_cfg_close = &uslcom_close, 198 .ucom_cfg_get_status = &uslcom_get_status, 199 .ucom_cfg_set_dtr = &uslcom_set_dtr, 200 .ucom_cfg_set_rts = &uslcom_set_rts, 201 .ucom_cfg_set_break = &uslcom_set_break, 202 .ucom_ioctl = &uslcom_ioctl, 203 .ucom_cfg_param = &uslcom_param, 204 .ucom_pre_param = &uslcom_pre_param, 205 .ucom_start_read = &uslcom_start_read, 206 .ucom_stop_read = &uslcom_stop_read, 207 .ucom_start_write = &uslcom_start_write, 208 .ucom_stop_write = &uslcom_stop_write, 209 .ucom_poll = &uslcom_poll, 210}; 211 212static const STRUCT_USB_HOST_ID uslcom_devs[] = { 213#define USLCOM_DEV(v,p) { USB_VP(USB_VENDOR_##v, USB_PRODUCT_##v##_##p) } 214 USLCOM_DEV(BALTECH, CARDREADER), 215 USLCOM_DEV(CLIPSAL, 5000CT2), 216 USLCOM_DEV(CLIPSAL, 5500PACA), 217 USLCOM_DEV(CLIPSAL, 5500PCU), 218 USLCOM_DEV(CLIPSAL, 560884), 219 USLCOM_DEV(CLIPSAL, 5800PC), 220 USLCOM_DEV(CLIPSAL, C5000CT2), 221 USLCOM_DEV(CLIPSAL, L51xx), 222 USLCOM_DEV(DATAAPEX, MULTICOM), 223 USLCOM_DEV(DELL, DW700), 224 USLCOM_DEV(DIGIANSWER, ZIGBEE802154), 225 USLCOM_DEV(DYNASTREAM, ANTDEVBOARD), 226 USLCOM_DEV(DYNASTREAM, ANTDEVBOARD2), 227 USLCOM_DEV(DYNASTREAM, ANT2USB), 228 USLCOM_DEV(ELV, USBI2C), 229 USLCOM_DEV(FESTO, CMSP), 230 USLCOM_DEV(FESTO, CPX_USB), 231 USLCOM_DEV(FOXCONN, PIRELLI_DP_L10), 232 USLCOM_DEV(FOXCONN, TCOM_TC_300), 233 USLCOM_DEV(GEMALTO, PROXPU), 234 USLCOM_DEV(JABLOTRON, PC60B), 235 USLCOM_DEV(KAMSTRUP, OPTICALEYE), 236 USLCOM_DEV(KAMSTRUP, MBUS_250D), 237 USLCOM_DEV(LINKINSTRUMENTS, MSO19), 238 USLCOM_DEV(LINKINSTRUMENTS, MSO28), 239 USLCOM_DEV(LINKINSTRUMENTS, MSO28_2), 240 USLCOM_DEV(MEI, CASHFLOW_SC), 241 USLCOM_DEV(MEI, S2000), 242 USLCOM_DEV(OWEN, AC4), 243 USLCOM_DEV(PHILIPS, ACE1001), 244 USLCOM_DEV(PLX, CA42), 245 USLCOM_DEV(RENESAS, RX610), 246 USLCOM_DEV(SILABS, AC_SERV_CAN), 247 USLCOM_DEV(SILABS, AC_SERV_CIS), 248 USLCOM_DEV(SILABS, AC_SERV_IBUS), 249 USLCOM_DEV(SILABS, AC_SERV_OBD), 250 USLCOM_DEV(SILABS, AEROCOMM), 251 USLCOM_DEV(SILABS, AMBER_AMB2560), 252 USLCOM_DEV(SILABS, ARGUSISP), 253 USLCOM_DEV(SILABS, ARKHAM_DS101_A), 254 USLCOM_DEV(SILABS, ARKHAM_DS101_M), 255 USLCOM_DEV(SILABS, ARYGON_MIFARE), 256 USLCOM_DEV(SILABS, AVIT_USB_TTL), 257 USLCOM_DEV(SILABS, B_G_H3000), 258 USLCOM_DEV(SILABS, BALLUFF_RFID), 259 USLCOM_DEV(SILABS, BEI_VCP), 260 USLCOM_DEV(SILABS, BSM7DUSB), 261 USLCOM_DEV(SILABS, BURNSIDE), 262 USLCOM_DEV(SILABS, C2_EDGE_MODEM), 263 USLCOM_DEV(SILABS, CP2102), 264 USLCOM_DEV(SILABS, CP210X_2), 265 USLCOM_DEV(SILABS, CP210X_3), 266 USLCOM_DEV(SILABS, CP210X_4), 267 USLCOM_DEV(SILABS, CRUMB128), 268 USLCOM_DEV(SILABS, CYGNAL), 269 USLCOM_DEV(SILABS, CYGNAL_DEBUG), 270 USLCOM_DEV(SILABS, CYGNAL_GPS), 271 USLCOM_DEV(SILABS, DEGREE), 272 USLCOM_DEV(SILABS, DEKTEK_DTAPLUS), 273 USLCOM_DEV(SILABS, EMS_C1007), 274 USLCOM_DEV(SILABS, HAMLINKUSB), 275 USLCOM_DEV(SILABS, HELICOM), 276 USLCOM_DEV(SILABS, IMS_USB_RS422), 277 USLCOM_DEV(SILABS, INFINITY_MIC), 278 USLCOM_DEV(SILABS, INSYS_MODEM), 279 USLCOM_DEV(SILABS, IRZ_SG10), 280 USLCOM_DEV(SILABS, KYOCERA_GPS), 281 USLCOM_DEV(SILABS, LIPOWSKY_HARP), 282 USLCOM_DEV(SILABS, LIPOWSKY_JTAG), 283 USLCOM_DEV(SILABS, LIPOWSKY_LIN), 284 USLCOM_DEV(SILABS, MC35PU), 285 USLCOM_DEV(SILABS, MJS_TOSLINK), 286 USLCOM_DEV(SILABS, MSD_DASHHAWK), 287 USLCOM_DEV(SILABS, MULTIPLEX_RC), 288 USLCOM_DEV(SILABS, OPTRIS_MSPRO), 289 USLCOM_DEV(SILABS, POLOLU), 290 USLCOM_DEV(SILABS, PROCYON_AVS), 291 USLCOM_DEV(SILABS, SB_PARAMOUNT_ME), 292 USLCOM_DEV(SILABS, SUUNTO), 293 USLCOM_DEV(SILABS, TAMSMASTER), 294 USLCOM_DEV(SILABS, TELEGESIS_ETRX2), 295 USLCOM_DEV(SILABS, TRACIENT), 296 USLCOM_DEV(SILABS, TRAQMATE), 297 USLCOM_DEV(SILABS, USBCOUNT50), 298 USLCOM_DEV(SILABS, USBPULSE100), 299 USLCOM_DEV(SILABS, USBSCOPE50), 300 USLCOM_DEV(SILABS, USBWAVE12), 301 USLCOM_DEV(SILABS, VSTABI), 302 USLCOM_DEV(SILABS, WAVIT), 303 USLCOM_DEV(SILABS, WMRBATT), 304 USLCOM_DEV(SILABS, WMRRIGBLASTER), 305 USLCOM_DEV(SILABS, WMRRIGTALK), 306 USLCOM_DEV(SILABS, ZEPHYR_BIO), 307 USLCOM_DEV(SILABS2, DCU11CLONE), 308 USLCOM_DEV(SILABS3, GPRS_MODEM), 309 USLCOM_DEV(SILABS4, 100EU_MODEM), 310 USLCOM_DEV(SYNTECH, CYPHERLAB100), 311 USLCOM_DEV(USI, MC60), 312 USLCOM_DEV(VAISALA, CABLE), 313 USLCOM_DEV(WAGO, SERVICECABLE), 314 USLCOM_DEV(WAVESENSE, JAZZ), 315 USLCOM_DEV(WIENERPLEINBAUS, PL512), 316 USLCOM_DEV(WIENERPLEINBAUS, RCM), 317 USLCOM_DEV(WIENERPLEINBAUS, MPOD), 318 USLCOM_DEV(WIENERPLEINBAUS, CML), 319#undef USLCOM_DEV 320}; 321 322static device_method_t uslcom_methods[] = { 323 DEVMETHOD(device_probe, uslcom_probe), 324 DEVMETHOD(device_attach, uslcom_attach), 325 DEVMETHOD(device_detach, uslcom_detach), 326 {0, 0} 327}; 328 329static devclass_t uslcom_devclass; 330 331static driver_t uslcom_driver = { 332 .name = "uslcom", 333 .methods = uslcom_methods, 334 .size = sizeof(struct uslcom_softc), 335}; 336 337DRIVER_MODULE(uslcom, uhub, uslcom_driver, uslcom_devclass, NULL, 0); 338MODULE_DEPEND(uslcom, ucom, 1, 1, 1); 339MODULE_DEPEND(uslcom, usb, 1, 1, 1); 340MODULE_VERSION(uslcom, 1); 341 342static void 343uslcom_watchdog(void *arg) 344{ 345 struct uslcom_softc *sc = arg; 346 347 mtx_assert(&sc->sc_mtx, MA_OWNED); 348 349 usbd_transfer_start(sc->sc_xfer[USLCOM_CTRL_DT_RD]); 350 351 usb_callout_reset(&sc->sc_watchdog, 352 hz / 4, &uslcom_watchdog, sc); 353} 354 355static int 356uslcom_probe(device_t dev) 357{ 358 struct usb_attach_arg *uaa = device_get_ivars(dev); 359 360 DPRINTFN(11, "\n"); 361 362 if (uaa->usb_mode != USB_MODE_HOST) { 363 return (ENXIO); 364 } 365 if (uaa->info.bConfigIndex != USLCOM_CONFIG_INDEX) { 366 return (ENXIO); 367 } 368 return (usbd_lookup_id_by_uaa(uslcom_devs, sizeof(uslcom_devs), uaa)); 369} 370 371static int 372uslcom_attach(device_t dev) 373{ 374 struct usb_attach_arg *uaa = device_get_ivars(dev); 375 struct uslcom_softc *sc = device_get_softc(dev); 376 int error; 377 378 DPRINTFN(11, "\n"); 379 380 device_set_usb_desc(dev); 381 mtx_init(&sc->sc_mtx, "uslcom", NULL, MTX_DEF); 382 usb_callout_init_mtx(&sc->sc_watchdog, &sc->sc_mtx, 0); 383 384 sc->sc_udev = uaa->device; 385 /* use the interface number from the USB interface descriptor */ 386 sc->sc_iface_no = uaa->info.bIfaceNum; 387 388 error = usbd_transfer_setup(uaa->device, 389 &uaa->info.bIfaceIndex, sc->sc_xfer, uslcom_config, 390 USLCOM_N_TRANSFER, sc, &sc->sc_mtx); 391 if (error) { 392 DPRINTF("one or more missing USB endpoints, " 393 "error=%s\n", usbd_errstr(error)); 394 goto detach; 395 } 396 /* clear stall at first run */ 397 mtx_lock(&sc->sc_mtx); 398 usbd_xfer_set_stall(sc->sc_xfer[USLCOM_BULK_DT_WR]); 399 usbd_xfer_set_stall(sc->sc_xfer[USLCOM_BULK_DT_RD]); 400 mtx_unlock(&sc->sc_mtx); 401 402 error = ucom_attach(&sc->sc_super_ucom, &sc->sc_ucom, 1, sc, 403 &uslcom_callback, &sc->sc_mtx); 404 if (error) { 405 goto detach; 406 } 407 ucom_set_pnpinfo_usb(&sc->sc_super_ucom, dev); 408 409 return (0); 410 411detach: 412 uslcom_detach(dev); 413 return (ENXIO); 414} 415 416static int 417uslcom_detach(device_t dev) 418{ 419 struct uslcom_softc *sc = device_get_softc(dev); 420 421 DPRINTF("sc=%p\n", sc); 422 423 ucom_detach(&sc->sc_super_ucom, &sc->sc_ucom); 424 usbd_transfer_unsetup(sc->sc_xfer, USLCOM_N_TRANSFER); 425 426 usb_callout_drain(&sc->sc_watchdog); 427 mtx_destroy(&sc->sc_mtx); 428 429 return (0); 430} 431 432static void 433uslcom_open(struct ucom_softc *ucom) 434{ 435 struct uslcom_softc *sc = ucom->sc_parent; 436 struct usb_device_request req; 437 438 req.bmRequestType = USLCOM_WRITE; 439 req.bRequest = USLCOM_UART; 440 USETW(req.wValue, USLCOM_UART_ENABLE); 441 USETW(req.wIndex, sc->sc_iface_no); 442 USETW(req.wLength, 0); 443 444 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 445 &req, NULL, 0, 1000)) { 446 DPRINTF("UART enable failed (ignored)\n"); 447 } 448 449 /* start polling status */ 450 uslcom_watchdog(sc); 451} 452 453static void 454uslcom_close(struct ucom_softc *ucom) 455{ 456 struct uslcom_softc *sc = ucom->sc_parent; 457 struct usb_device_request req; 458 459 /* stop polling status */ 460 usb_callout_stop(&sc->sc_watchdog); 461 462 req.bmRequestType = USLCOM_WRITE; 463 req.bRequest = USLCOM_UART; 464 USETW(req.wValue, USLCOM_UART_DISABLE); 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 disable failed (ignored)\n"); 471 } 472} 473 474static void 475uslcom_set_dtr(struct ucom_softc *ucom, uint8_t onoff) 476{ 477 struct uslcom_softc *sc = ucom->sc_parent; 478 struct usb_device_request req; 479 uint16_t ctl; 480 481 DPRINTF("onoff = %d\n", onoff); 482 483 ctl = onoff ? USLCOM_CTRL_DTR_ON : 0; 484 ctl |= USLCOM_CTRL_DTR_SET; 485 486 req.bmRequestType = USLCOM_WRITE; 487 req.bRequest = USLCOM_CTRL; 488 USETW(req.wValue, ctl); 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("Setting DTR failed (ignored)\n"); 495 } 496} 497 498static void 499uslcom_set_rts(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_RTS_ON : 0; 508 ctl |= USLCOM_CTRL_RTS_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 int 523uslcom_pre_param(struct ucom_softc *ucom, struct termios *t) 524{ 525 if (t->c_ospeed <= 0 || t->c_ospeed > 921600) 526 return (EINVAL); 527 return (0); 528} 529 530static void 531uslcom_param(struct ucom_softc *ucom, struct termios *t) 532{ 533 struct uslcom_softc *sc = ucom->sc_parent; 534 struct usb_device_request req; 535 uint32_t baudrate, flowctrl[4]; 536 uint16_t data; 537 538 DPRINTF("\n"); 539 540 baudrate = t->c_ospeed; 541 req.bmRequestType = USLCOM_WRITE; 542 req.bRequest = USLCOM_SET_BAUD_RATE; 543 USETW(req.wValue, 0); 544 USETW(req.wIndex, sc->sc_iface_no); 545 USETW(req.wLength, sizeof(baudrate)); 546 547 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 548 &req, &baudrate, 0, 1000)) { 549 DPRINTF("Set baudrate failed (ignored)\n"); 550 } 551 552 if (t->c_cflag & CSTOPB) 553 data = USLCOM_STOP_BITS_2; 554 else 555 data = USLCOM_STOP_BITS_1; 556 if (t->c_cflag & PARENB) { 557 if (t->c_cflag & PARODD) 558 data |= USLCOM_PARITY_ODD; 559 else 560 data |= USLCOM_PARITY_EVEN; 561 } else 562 data |= USLCOM_PARITY_NONE; 563 switch (t->c_cflag & CSIZE) { 564 case CS5: 565 data |= USLCOM_SET_DATA_BITS(5); 566 break; 567 case CS6: 568 data |= USLCOM_SET_DATA_BITS(6); 569 break; 570 case CS7: 571 data |= USLCOM_SET_DATA_BITS(7); 572 break; 573 case CS8: 574 data |= USLCOM_SET_DATA_BITS(8); 575 break; 576 } 577 578 req.bmRequestType = USLCOM_WRITE; 579 req.bRequest = USLCOM_DATA; 580 USETW(req.wValue, data); 581 USETW(req.wIndex, sc->sc_iface_no); 582 USETW(req.wLength, 0); 583 584 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 585 &req, NULL, 0, 1000)) { 586 DPRINTF("Set format failed (ignored)\n"); 587 } 588 589 if (t->c_cflag & CRTSCTS) { 590 flowctrl[0] = htole32(USLCOM_FLOW_DTR_ON | USLCOM_FLOW_CTS_HS); 591 flowctrl[1] = htole32(USLCOM_FLOW_RTS_HS); 592 flowctrl[2] = 0; 593 flowctrl[3] = 0; 594 } else { 595 flowctrl[0] = htole32(USLCOM_FLOW_DTR_ON); 596 flowctrl[1] = htole32(USLCOM_FLOW_RTS_ON); 597 flowctrl[2] = 0; 598 flowctrl[3] = 0; 599 } 600 req.bmRequestType = USLCOM_WRITE; 601 req.bRequest = USLCOM_SET_FLOWCTRL; 602 USETW(req.wValue, 0); 603 USETW(req.wIndex, sc->sc_iface_no); 604 USETW(req.wLength, sizeof(flowctrl)); 605 606 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 607 &req, flowctrl, 0, 1000)) { 608 DPRINTF("Set flowcontrol failed (ignored)\n"); 609 } 610} 611 612static void 613uslcom_get_status(struct ucom_softc *ucom, uint8_t *lsr, uint8_t *msr) 614{ 615 struct uslcom_softc *sc = ucom->sc_parent; 616 617 DPRINTF("\n"); 618 619 *lsr = sc->sc_lsr; 620 *msr = sc->sc_msr; 621} 622 623static void 624uslcom_set_break(struct ucom_softc *ucom, uint8_t onoff) 625{ 626 struct uslcom_softc *sc = ucom->sc_parent; 627 struct usb_device_request req; 628 uint16_t brk = onoff ? USLCOM_BREAK_ON : USLCOM_BREAK_OFF; 629 630 req.bmRequestType = USLCOM_WRITE; 631 req.bRequest = USLCOM_BREAK; 632 USETW(req.wValue, brk); 633 USETW(req.wIndex, sc->sc_iface_no); 634 USETW(req.wLength, 0); 635 636 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 637 &req, NULL, 0, 1000)) { 638 DPRINTF("Set BREAK failed (ignored)\n"); 639 } 640} 641 642static int 643uslcom_ioctl(struct ucom_softc *ucom, uint32_t cmd, caddr_t data, 644 int flag, struct thread *td) 645{ 646 struct uslcom_softc *sc = ucom->sc_parent; 647 struct usb_device_request req; 648 int error = 0; 649 uint8_t latch; 650 651 DPRINTF("cmd=0x%08x\n", cmd); 652 653 switch (cmd) { 654 case USB_GET_GPIO: 655 req.bmRequestType = USLCOM_READ; 656 req.bRequest = USLCOM_VENDOR_SPECIFIC; 657 USETW(req.wValue, USLCOM_READ_LATCH); 658 USETW(req.wIndex, 0); 659 USETW(req.wLength, sizeof(latch)); 660 661 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 662 &req, &latch, 0, 1000)) { 663 DPRINTF("Get LATCH failed\n"); 664 error = EIO; 665 } 666 *(int *)data = latch; 667 break; 668 669 case USB_SET_GPIO: 670 req.bmRequestType = USLCOM_WRITE; 671 req.bRequest = USLCOM_VENDOR_SPECIFIC; 672 USETW(req.wValue, USLCOM_WRITE_LATCH); 673 USETW(req.wIndex, (*(int *)data)); 674 USETW(req.wLength, 0); 675 676 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 677 &req, NULL, 0, 1000)) { 678 DPRINTF("Set LATCH failed\n"); 679 error = EIO; 680 } 681 break; 682 683 default: 684 DPRINTF("Unknown IOCTL\n"); 685 error = ENOIOCTL; 686 break; 687 } 688 return (error); 689} 690 691static void 692uslcom_write_callback(struct usb_xfer *xfer, usb_error_t error) 693{ 694 struct uslcom_softc *sc = usbd_xfer_softc(xfer); 695 struct usb_page_cache *pc; 696 uint32_t actlen; 697 698 switch (USB_GET_STATE(xfer)) { 699 case USB_ST_SETUP: 700 case USB_ST_TRANSFERRED: 701tr_setup: 702 pc = usbd_xfer_get_frame(xfer, 0); 703 if (ucom_get_data(&sc->sc_ucom, pc, 0, 704 USLCOM_BULK_BUF_SIZE, &actlen)) { 705 706 DPRINTF("actlen = %d\n", actlen); 707 708 usbd_xfer_set_frame_len(xfer, 0, actlen); 709 usbd_transfer_submit(xfer); 710 } 711 return; 712 713 default: /* Error */ 714 if (error != USB_ERR_CANCELLED) { 715 /* try to clear stall first */ 716 usbd_xfer_set_stall(xfer); 717 goto tr_setup; 718 } 719 return; 720 } 721} 722 723static void 724uslcom_read_callback(struct usb_xfer *xfer, usb_error_t error) 725{ 726 struct uslcom_softc *sc = usbd_xfer_softc(xfer); 727 struct usb_page_cache *pc; 728 int actlen; 729 730 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 731 732 switch (USB_GET_STATE(xfer)) { 733 case USB_ST_TRANSFERRED: 734 pc = usbd_xfer_get_frame(xfer, 0); 735 ucom_put_data(&sc->sc_ucom, pc, 0, actlen); 736 737 case USB_ST_SETUP: 738tr_setup: 739 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 740 usbd_transfer_submit(xfer); 741 return; 742 743 default: /* Error */ 744 if (error != USB_ERR_CANCELLED) { 745 /* try to clear stall first */ 746 usbd_xfer_set_stall(xfer); 747 goto tr_setup; 748 } 749 return; 750 } 751} 752 753static void 754uslcom_control_callback(struct usb_xfer *xfer, usb_error_t error) 755{ 756 struct uslcom_softc *sc = usbd_xfer_softc(xfer); 757 struct usb_page_cache *pc; 758 struct usb_device_request req; 759 uint8_t msr = 0; 760 uint8_t buf; 761 762 switch (USB_GET_STATE(xfer)) { 763 case USB_ST_TRANSFERRED: 764 pc = usbd_xfer_get_frame(xfer, 1); 765 usbd_copy_out(pc, 0, &buf, sizeof(buf)); 766 if (buf & USLCOM_CTRL_CTS) 767 msr |= SER_CTS; 768 if (buf & USLCOM_CTRL_DSR) 769 msr |= SER_DSR; 770 if (buf & USLCOM_CTRL_RI) 771 msr |= SER_RI; 772 if (buf & USLCOM_CTRL_DCD) 773 msr |= SER_DCD; 774 775 if (msr != sc->sc_msr) { 776 DPRINTF("status change msr=0x%02x " 777 "(was 0x%02x)\n", msr, sc->sc_msr); 778 sc->sc_msr = msr; 779 ucom_status_change(&sc->sc_ucom); 780 } 781 break; 782 783 case USB_ST_SETUP: 784 req.bmRequestType = USLCOM_READ; 785 req.bRequest = USLCOM_RCTRL; 786 USETW(req.wValue, 0); 787 USETW(req.wIndex, sc->sc_iface_no); 788 USETW(req.wLength, sizeof(buf)); 789 790 usbd_xfer_set_frames(xfer, 2); 791 usbd_xfer_set_frame_len(xfer, 0, sizeof(req)); 792 usbd_xfer_set_frame_len(xfer, 1, sizeof(buf)); 793 794 pc = usbd_xfer_get_frame(xfer, 0); 795 usbd_copy_in(pc, 0, &req, sizeof(req)); 796 usbd_transfer_submit(xfer); 797 break; 798 799 default: /* error */ 800 if (error != USB_ERR_CANCELLED) 801 DPRINTF("error=%s\n", usbd_errstr(error)); 802 break; 803 } 804} 805 806static void 807uslcom_start_read(struct ucom_softc *ucom) 808{ 809 struct uslcom_softc *sc = ucom->sc_parent; 810 811 /* start read endpoint */ 812 usbd_transfer_start(sc->sc_xfer[USLCOM_BULK_DT_RD]); 813} 814 815static void 816uslcom_stop_read(struct ucom_softc *ucom) 817{ 818 struct uslcom_softc *sc = ucom->sc_parent; 819 820 /* stop read endpoint */ 821 usbd_transfer_stop(sc->sc_xfer[USLCOM_BULK_DT_RD]); 822} 823 824static void 825uslcom_start_write(struct ucom_softc *ucom) 826{ 827 struct uslcom_softc *sc = ucom->sc_parent; 828 829 usbd_transfer_start(sc->sc_xfer[USLCOM_BULK_DT_WR]); 830} 831 832static void 833uslcom_stop_write(struct ucom_softc *ucom) 834{ 835 struct uslcom_softc *sc = ucom->sc_parent; 836 837 usbd_transfer_stop(sc->sc_xfer[USLCOM_BULK_DT_WR]); 838} 839 840static void 841uslcom_poll(struct ucom_softc *ucom) 842{ 843 struct uslcom_softc *sc = ucom->sc_parent; 844 usbd_transfer_poll(sc->sc_xfer, USLCOM_N_TRANSFER); 845} 846