uslcom.c revision 227463
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 227463 2011-11-12 08:40:52Z 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#define USLCOM_IFACE_INDEX 0 64 65#define USLCOM_SET_DATA_BITS(x) ((x) << 8) 66 67/* Request types */ 68#define USLCOM_WRITE 0x41 69#define USLCOM_READ 0xc1 70 71/* Request codes */ 72#define USLCOM_UART 0x00 73#define USLCOM_BAUD_RATE 0x01 74#define USLCOM_DATA 0x03 75#define USLCOM_BREAK 0x05 76#define USLCOM_CTRL 0x07 77#define USLCOM_RCTRL 0x08 78#define USLCOM_SET_FLOWCTRL 0x13 79#define USLCOM_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_BAUD_RATE values */ 96#define USLCOM_BAUD_REF 0x384000 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#define USLCOM_PORT_NO 0x0000 106 107/* USLCOM_BREAK values */ 108#define USLCOM_BREAK_OFF 0x00 109#define USLCOM_BREAK_ON 0x01 110 111/* USLCOM_SET_FLOWCTRL values - 1st word */ 112#define USLCOM_FLOW_DTR_ON 0x00000001 /* DTR static active */ 113#define USLCOM_FLOW_CTS_HS 0x00000008 /* CTS handshake */ 114/* USLCOM_SET_FLOWCTRL values - 2nd word */ 115#define USLCOM_FLOW_RTS_ON 0x00000040 /* RTS static active */ 116#define USLCOM_FLOW_RTS_HS 0x00000080 /* RTS handshake */ 117 118/* USLCOM_VENDOR_SPECIFIC values */ 119#define USLCOM_WRITE_LATCH 0x37E1 120#define USLCOM_READ_LATCH 0x00C2 121 122enum { 123 USLCOM_BULK_DT_WR, 124 USLCOM_BULK_DT_RD, 125 USLCOM_CTRL_DT_RD, 126 USLCOM_N_TRANSFER, 127}; 128 129struct uslcom_softc { 130 struct ucom_super_softc sc_super_ucom; 131 struct ucom_softc sc_ucom; 132 struct usb_callout sc_watchdog; 133 134 struct usb_xfer *sc_xfer[USLCOM_N_TRANSFER]; 135 struct usb_device *sc_udev; 136 struct mtx sc_mtx; 137 138 uint8_t sc_msr; 139 uint8_t sc_lsr; 140}; 141 142static device_probe_t uslcom_probe; 143static device_attach_t uslcom_attach; 144static device_detach_t uslcom_detach; 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_open(struct ucom_softc *); 151static void uslcom_close(struct ucom_softc *); 152static void uslcom_set_dtr(struct ucom_softc *, uint8_t); 153static void uslcom_set_rts(struct ucom_softc *, uint8_t); 154static void uslcom_set_break(struct ucom_softc *, uint8_t); 155static int uslcom_ioctl(struct ucom_softc *, uint32_t, caddr_t, int, 156 struct thread *); 157static int uslcom_pre_param(struct ucom_softc *, struct termios *); 158static void uslcom_param(struct ucom_softc *, struct termios *); 159static void uslcom_get_status(struct ucom_softc *, uint8_t *, uint8_t *); 160static void uslcom_start_read(struct ucom_softc *); 161static void uslcom_stop_read(struct ucom_softc *); 162static void uslcom_start_write(struct ucom_softc *); 163static void uslcom_stop_write(struct ucom_softc *); 164static void uslcom_poll(struct ucom_softc *ucom); 165 166static const struct usb_config uslcom_config[USLCOM_N_TRANSFER] = { 167 168 [USLCOM_BULK_DT_WR] = { 169 .type = UE_BULK, 170 .endpoint = UE_ADDR_ANY, 171 .direction = UE_DIR_OUT, 172 .bufsize = USLCOM_BULK_BUF_SIZE, 173 .flags = {.pipe_bof = 1,}, 174 .callback = &uslcom_write_callback, 175 }, 176 177 [USLCOM_BULK_DT_RD] = { 178 .type = UE_BULK, 179 .endpoint = UE_ADDR_ANY, 180 .direction = UE_DIR_IN, 181 .bufsize = USLCOM_BULK_BUF_SIZE, 182 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 183 .callback = &uslcom_read_callback, 184 }, 185 [USLCOM_CTRL_DT_RD] = { 186 .type = UE_CONTROL, 187 .endpoint = 0x00, 188 .direction = UE_DIR_ANY, 189 .bufsize = sizeof(struct usb_device_request) + 8, 190 .flags = {.pipe_bof = 1,}, 191 .callback = &uslcom_control_callback, 192 .timeout = 1000, /* 1 second timeout */ 193 }, 194}; 195 196static struct ucom_callback uslcom_callback = { 197 .ucom_cfg_open = &uslcom_open, 198 .ucom_cfg_close = &uslcom_close, 199 .ucom_cfg_get_status = &uslcom_get_status, 200 .ucom_cfg_set_dtr = &uslcom_set_dtr, 201 .ucom_cfg_set_rts = &uslcom_set_rts, 202 .ucom_cfg_set_break = &uslcom_set_break, 203 .ucom_ioctl = &uslcom_ioctl, 204 .ucom_cfg_param = &uslcom_param, 205 .ucom_pre_param = &uslcom_pre_param, 206 .ucom_start_read = &uslcom_start_read, 207 .ucom_stop_read = &uslcom_stop_read, 208 .ucom_start_write = &uslcom_start_write, 209 .ucom_stop_write = &uslcom_stop_write, 210 .ucom_poll = &uslcom_poll, 211}; 212 213static const STRUCT_USB_HOST_ID uslcom_devs[] = { 214#define USLCOM_DEV(v,p) { USB_VP(USB_VENDOR_##v, USB_PRODUCT_##v##_##p) } 215 USLCOM_DEV(BALTECH, CARDREADER), 216 USLCOM_DEV(CLIPSAL, 5500PCU), 217 USLCOM_DEV(DATAAPEX, MULTICOM), 218 USLCOM_DEV(DELL, DW700), 219 USLCOM_DEV(DIGIANSWER, ZIGBEE802154), 220 USLCOM_DEV(DYNASTREAM, ANTDEVBOARD), 221 USLCOM_DEV(DYNASTREAM, ANTDEVBOARD2), 222 USLCOM_DEV(DYNASTREAM, ANT2USB), 223 USLCOM_DEV(ELV, USBI2C), 224 USLCOM_DEV(FOXCONN, PIRELLI_DP_L10), 225 USLCOM_DEV(FOXCONN, TCOM_TC_300), 226 USLCOM_DEV(GEMALTO, PROXPU), 227 USLCOM_DEV(JABLOTRON, PC60B), 228 USLCOM_DEV(MEI, CASHFLOW_SC), 229 USLCOM_DEV(MEI, S2000), 230 USLCOM_DEV(JABLOTRON, PC60B), 231 USLCOM_DEV(OWEN, AC4), 232 USLCOM_DEV(PHILIPS, ACE1001), 233 USLCOM_DEV(PLX, CA42), 234 USLCOM_DEV(RENESAS, RX610), 235 USLCOM_DEV(SILABS, AEROCOMM), 236 USLCOM_DEV(SILABS, AMBER_AMB2560), 237 USLCOM_DEV(SILABS, ARGUSISP), 238 USLCOM_DEV(SILABS, ARKHAM_DS101_A), 239 USLCOM_DEV(SILABS, ARKHAM_DS101_M), 240 USLCOM_DEV(SILABS, ARYGON_MIFARE), 241 USLCOM_DEV(SILABS, AVIT_USB_TTL), 242 USLCOM_DEV(SILABS, B_G_H3000), 243 USLCOM_DEV(SILABS, BALLUFF_RFID), 244 USLCOM_DEV(SILABS, BEI_VCP), 245 USLCOM_DEV(SILABS, BSM7DUSB), 246 USLCOM_DEV(SILABS, BURNSIDE), 247 USLCOM_DEV(SILABS, C2_EDGE_MODEM), 248 USLCOM_DEV(SILABS, CP2102), 249 USLCOM_DEV(SILABS, CP210X_2), 250 USLCOM_DEV(SILABS, CRUMB128), 251 USLCOM_DEV(SILABS, CYGNAL), 252 USLCOM_DEV(SILABS, CYGNAL_DEBUG), 253 USLCOM_DEV(SILABS, CYGNAL_GPS), 254 USLCOM_DEV(SILABS, DEGREE), 255 USLCOM_DEV(SILABS, EMS_C1007), 256 USLCOM_DEV(SILABS, HELICOM), 257 USLCOM_DEV(SILABS, IMS_USB_RS422), 258 USLCOM_DEV(SILABS, INFINITY_MIC), 259 USLCOM_DEV(SILABS, INSYS_MODEM), 260 USLCOM_DEV(SILABS, KYOCERA_GPS), 261 USLCOM_DEV(SILABS, LIPOWSKY_HARP), 262 USLCOM_DEV(SILABS, LIPOWSKY_JTAG), 263 USLCOM_DEV(SILABS, LIPOWSKY_LIN), 264 USLCOM_DEV(SILABS, MC35PU), 265 USLCOM_DEV(SILABS, MJS_TOSLINK), 266 USLCOM_DEV(SILABS, MSD_DASHHAWK), 267 USLCOM_DEV(SILABS, POLOLU), 268 USLCOM_DEV(SILABS, PROCYON_AVS), 269 USLCOM_DEV(SILABS, SB_PARAMOUNT_ME), 270 USLCOM_DEV(SILABS, SUUNTO), 271 USLCOM_DEV(SILABS, TAMSMASTER), 272 USLCOM_DEV(SILABS, TELEGESYS_ETRX2), 273 USLCOM_DEV(SILABS, TRACIENT), 274 USLCOM_DEV(SILABS, TRAQMATE), 275 USLCOM_DEV(SILABS, USBCOUNT50), 276 USLCOM_DEV(SILABS, USBPULSE100), 277 USLCOM_DEV(SILABS, USBSCOPE50), 278 USLCOM_DEV(SILABS, USBWAVE12), 279 USLCOM_DEV(SILABS, VSTABI), 280 USLCOM_DEV(SILABS, WAVIT), 281 USLCOM_DEV(SILABS, WMRBATT), 282 USLCOM_DEV(SILABS, WMRRIGBLASTER), 283 USLCOM_DEV(SILABS, WMRRIGTALK), 284 USLCOM_DEV(SILABS, ZEPHYR_BIO), 285 USLCOM_DEV(SILABS2, DCU11CLONE), 286 USLCOM_DEV(SILABS3, GPRS_MODEM), 287 USLCOM_DEV(SILABS4, 100EU_MODEM), 288 USLCOM_DEV(SYNTECH, CYPHERLAB100), 289 USLCOM_DEV(USI, MC60), 290 USLCOM_DEV(VAISALA, CABLE), 291 USLCOM_DEV(WAGO, SERVICECABLE), 292 USLCOM_DEV(WAVESENSE, JAZZ), 293 USLCOM_DEV(WIENERPLEINBAUS, PL512), 294 USLCOM_DEV(WIENERPLEINBAUS, RCM), 295 USLCOM_DEV(WIENERPLEINBAUS, MPOD), 296 USLCOM_DEV(WIENERPLEINBAUS, CML), 297#undef USLCOM_DEV 298}; 299 300static device_method_t uslcom_methods[] = { 301 DEVMETHOD(device_probe, uslcom_probe), 302 DEVMETHOD(device_attach, uslcom_attach), 303 DEVMETHOD(device_detach, uslcom_detach), 304 {0, 0} 305}; 306 307static devclass_t uslcom_devclass; 308 309static driver_t uslcom_driver = { 310 .name = "uslcom", 311 .methods = uslcom_methods, 312 .size = sizeof(struct uslcom_softc), 313}; 314 315DRIVER_MODULE(uslcom, uhub, uslcom_driver, uslcom_devclass, NULL, 0); 316MODULE_DEPEND(uslcom, ucom, 1, 1, 1); 317MODULE_DEPEND(uslcom, usb, 1, 1, 1); 318MODULE_VERSION(uslcom, 1); 319 320static void 321uslcom_watchdog(void *arg) 322{ 323 struct uslcom_softc *sc = arg; 324 325 mtx_assert(&sc->sc_mtx, MA_OWNED); 326 327 usbd_transfer_start(sc->sc_xfer[USLCOM_CTRL_DT_RD]); 328 329 usb_callout_reset(&sc->sc_watchdog, 330 hz / 4, &uslcom_watchdog, sc); 331} 332 333static int 334uslcom_probe(device_t dev) 335{ 336 struct usb_attach_arg *uaa = device_get_ivars(dev); 337 338 DPRINTFN(11, "\n"); 339 340 if (uaa->usb_mode != USB_MODE_HOST) { 341 return (ENXIO); 342 } 343 if (uaa->info.bConfigIndex != USLCOM_CONFIG_INDEX) { 344 return (ENXIO); 345 } 346 if (uaa->info.bIfaceIndex != USLCOM_IFACE_INDEX) { 347 return (ENXIO); 348 } 349 return (usbd_lookup_id_by_uaa(uslcom_devs, sizeof(uslcom_devs), uaa)); 350} 351 352static int 353uslcom_attach(device_t dev) 354{ 355 struct usb_attach_arg *uaa = device_get_ivars(dev); 356 struct uslcom_softc *sc = device_get_softc(dev); 357 int error; 358 359 DPRINTFN(11, "\n"); 360 361 device_set_usb_desc(dev); 362 mtx_init(&sc->sc_mtx, "uslcom", NULL, MTX_DEF); 363 usb_callout_init_mtx(&sc->sc_watchdog, &sc->sc_mtx, 0); 364 365 sc->sc_udev = uaa->device; 366 367 error = usbd_transfer_setup(uaa->device, 368 &uaa->info.bIfaceIndex, sc->sc_xfer, uslcom_config, 369 USLCOM_N_TRANSFER, sc, &sc->sc_mtx); 370 if (error) { 371 DPRINTF("one or more missing USB endpoints, " 372 "error=%s\n", usbd_errstr(error)); 373 goto detach; 374 } 375 /* clear stall at first run */ 376 mtx_lock(&sc->sc_mtx); 377 usbd_xfer_set_stall(sc->sc_xfer[USLCOM_BULK_DT_WR]); 378 usbd_xfer_set_stall(sc->sc_xfer[USLCOM_BULK_DT_RD]); 379 mtx_unlock(&sc->sc_mtx); 380 381 error = ucom_attach(&sc->sc_super_ucom, &sc->sc_ucom, 1, sc, 382 &uslcom_callback, &sc->sc_mtx); 383 if (error) { 384 goto detach; 385 } 386 ucom_set_pnpinfo_usb(&sc->sc_super_ucom, dev); 387 388 return (0); 389 390detach: 391 uslcom_detach(dev); 392 return (ENXIO); 393} 394 395static int 396uslcom_detach(device_t dev) 397{ 398 struct uslcom_softc *sc = device_get_softc(dev); 399 400 DPRINTF("sc=%p\n", sc); 401 402 ucom_detach(&sc->sc_super_ucom, &sc->sc_ucom); 403 usbd_transfer_unsetup(sc->sc_xfer, USLCOM_N_TRANSFER); 404 405 usb_callout_drain(&sc->sc_watchdog); 406 mtx_destroy(&sc->sc_mtx); 407 408 return (0); 409} 410 411static void 412uslcom_open(struct ucom_softc *ucom) 413{ 414 struct uslcom_softc *sc = ucom->sc_parent; 415 struct usb_device_request req; 416 417 req.bmRequestType = USLCOM_WRITE; 418 req.bRequest = USLCOM_UART; 419 USETW(req.wValue, USLCOM_UART_ENABLE); 420 USETW(req.wIndex, USLCOM_PORT_NO); 421 USETW(req.wLength, 0); 422 423 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 424 &req, NULL, 0, 1000)) { 425 DPRINTF("UART enable failed (ignored)\n"); 426 } 427 428 /* start polling status */ 429 uslcom_watchdog(sc); 430} 431 432static void 433uslcom_close(struct ucom_softc *ucom) 434{ 435 struct uslcom_softc *sc = ucom->sc_parent; 436 struct usb_device_request req; 437 438 /* stop polling status */ 439 usb_callout_stop(&sc->sc_watchdog); 440 441 req.bmRequestType = USLCOM_WRITE; 442 req.bRequest = USLCOM_UART; 443 USETW(req.wValue, USLCOM_UART_DISABLE); 444 USETW(req.wIndex, USLCOM_PORT_NO); 445 USETW(req.wLength, 0); 446 447 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 448 &req, NULL, 0, 1000)) { 449 DPRINTF("UART disable failed (ignored)\n"); 450 } 451} 452 453static void 454uslcom_set_dtr(struct ucom_softc *ucom, uint8_t onoff) 455{ 456 struct uslcom_softc *sc = ucom->sc_parent; 457 struct usb_device_request req; 458 uint16_t ctl; 459 460 DPRINTF("onoff = %d\n", onoff); 461 462 ctl = onoff ? USLCOM_CTRL_DTR_ON : 0; 463 ctl |= USLCOM_CTRL_DTR_SET; 464 465 req.bmRequestType = USLCOM_WRITE; 466 req.bRequest = USLCOM_CTRL; 467 USETW(req.wValue, ctl); 468 USETW(req.wIndex, USLCOM_PORT_NO); 469 USETW(req.wLength, 0); 470 471 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 472 &req, NULL, 0, 1000)) { 473 DPRINTF("Setting DTR failed (ignored)\n"); 474 } 475} 476 477static void 478uslcom_set_rts(struct ucom_softc *ucom, uint8_t onoff) 479{ 480 struct uslcom_softc *sc = ucom->sc_parent; 481 struct usb_device_request req; 482 uint16_t ctl; 483 484 DPRINTF("onoff = %d\n", onoff); 485 486 ctl = onoff ? USLCOM_CTRL_RTS_ON : 0; 487 ctl |= USLCOM_CTRL_RTS_SET; 488 489 req.bmRequestType = USLCOM_WRITE; 490 req.bRequest = USLCOM_CTRL; 491 USETW(req.wValue, ctl); 492 USETW(req.wIndex, USLCOM_PORT_NO); 493 USETW(req.wLength, 0); 494 495 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 496 &req, NULL, 0, 1000)) { 497 DPRINTF("Setting DTR failed (ignored)\n"); 498 } 499} 500 501static int 502uslcom_pre_param(struct ucom_softc *ucom, struct termios *t) 503{ 504 if (t->c_ospeed <= 0 || t->c_ospeed > 921600) 505 return (EINVAL); 506 return (0); 507} 508 509static void 510uslcom_param(struct ucom_softc *ucom, struct termios *t) 511{ 512 struct uslcom_softc *sc = ucom->sc_parent; 513 struct usb_device_request req; 514 uint32_t flowctrl[4]; 515 uint16_t data; 516 517 DPRINTF("\n"); 518 519 req.bmRequestType = USLCOM_WRITE; 520 req.bRequest = USLCOM_BAUD_RATE; 521 USETW(req.wValue, USLCOM_BAUD_REF / t->c_ospeed); 522 USETW(req.wIndex, USLCOM_PORT_NO); 523 USETW(req.wLength, 0); 524 525 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 526 &req, NULL, 0, 1000)) { 527 DPRINTF("Set baudrate failed (ignored)\n"); 528 } 529 530 if (t->c_cflag & CSTOPB) 531 data = USLCOM_STOP_BITS_2; 532 else 533 data = USLCOM_STOP_BITS_1; 534 if (t->c_cflag & PARENB) { 535 if (t->c_cflag & PARODD) 536 data |= USLCOM_PARITY_ODD; 537 else 538 data |= USLCOM_PARITY_EVEN; 539 } else 540 data |= USLCOM_PARITY_NONE; 541 switch (t->c_cflag & CSIZE) { 542 case CS5: 543 data |= USLCOM_SET_DATA_BITS(5); 544 break; 545 case CS6: 546 data |= USLCOM_SET_DATA_BITS(6); 547 break; 548 case CS7: 549 data |= USLCOM_SET_DATA_BITS(7); 550 break; 551 case CS8: 552 data |= USLCOM_SET_DATA_BITS(8); 553 break; 554 } 555 556 req.bmRequestType = USLCOM_WRITE; 557 req.bRequest = USLCOM_DATA; 558 USETW(req.wValue, data); 559 USETW(req.wIndex, USLCOM_PORT_NO); 560 USETW(req.wLength, 0); 561 562 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 563 &req, NULL, 0, 1000)) { 564 DPRINTF("Set format failed (ignored)\n"); 565 } 566 567 if (t->c_cflag & CRTSCTS) { 568 flowctrl[0] = htole32(USLCOM_FLOW_DTR_ON | USLCOM_FLOW_CTS_HS); 569 flowctrl[1] = htole32(USLCOM_FLOW_RTS_HS); 570 flowctrl[2] = 0; 571 flowctrl[3] = 0; 572 } else { 573 flowctrl[0] = htole32(USLCOM_FLOW_DTR_ON); 574 flowctrl[1] = htole32(USLCOM_FLOW_RTS_ON); 575 flowctrl[2] = 0; 576 flowctrl[3] = 0; 577 } 578 req.bmRequestType = USLCOM_WRITE; 579 req.bRequest = USLCOM_SET_FLOWCTRL; 580 USETW(req.wValue, 0); 581 USETW(req.wIndex, USLCOM_PORT_NO); 582 USETW(req.wLength, sizeof(flowctrl)); 583 584 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 585 &req, flowctrl, 0, 1000)) { 586 DPRINTF("Set flowcontrol failed (ignored)\n"); 587 } 588} 589 590static void 591uslcom_get_status(struct ucom_softc *ucom, uint8_t *lsr, uint8_t *msr) 592{ 593 struct uslcom_softc *sc = ucom->sc_parent; 594 595 DPRINTF("\n"); 596 597 *lsr = sc->sc_lsr; 598 *msr = sc->sc_msr; 599} 600 601static void 602uslcom_set_break(struct ucom_softc *ucom, uint8_t onoff) 603{ 604 struct uslcom_softc *sc = ucom->sc_parent; 605 struct usb_device_request req; 606 uint16_t brk = onoff ? USLCOM_BREAK_ON : USLCOM_BREAK_OFF; 607 608 req.bmRequestType = USLCOM_WRITE; 609 req.bRequest = USLCOM_BREAK; 610 USETW(req.wValue, brk); 611 USETW(req.wIndex, USLCOM_PORT_NO); 612 USETW(req.wLength, 0); 613 614 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 615 &req, NULL, 0, 1000)) { 616 DPRINTF("Set BREAK failed (ignored)\n"); 617 } 618} 619 620static int 621uslcom_ioctl(struct ucom_softc *ucom, uint32_t cmd, caddr_t data, 622 int flag, struct thread *td) 623{ 624 struct uslcom_softc *sc = ucom->sc_parent; 625 struct usb_device_request req; 626 int error = 0; 627 uint8_t latch; 628 629 DPRINTF("cmd=0x%08x\n", cmd); 630 631 switch (cmd) { 632 case USB_GET_GPIO: 633 req.bmRequestType = USLCOM_READ; 634 req.bRequest = USLCOM_VENDOR_SPECIFIC; 635 USETW(req.wValue, USLCOM_READ_LATCH); 636 USETW(req.wIndex, 0); 637 USETW(req.wLength, sizeof(latch)); 638 639 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 640 &req, &latch, 0, 1000)) { 641 DPRINTF("Get LATCH failed\n"); 642 error = EIO; 643 } 644 *(int *)data = latch; 645 break; 646 647 case USB_SET_GPIO: 648 req.bmRequestType = USLCOM_WRITE; 649 req.bRequest = USLCOM_VENDOR_SPECIFIC; 650 USETW(req.wValue, USLCOM_WRITE_LATCH); 651 USETW(req.wIndex, (*(int *)data)); 652 USETW(req.wLength, 0); 653 654 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 655 &req, NULL, 0, 1000)) { 656 DPRINTF("Set LATCH failed\n"); 657 error = EIO; 658 } 659 break; 660 661 default: 662 DPRINTF("Unknown IOCTL\n"); 663 error = ENOIOCTL; 664 break; 665 } 666 return (error); 667} 668 669static void 670uslcom_write_callback(struct usb_xfer *xfer, usb_error_t error) 671{ 672 struct uslcom_softc *sc = usbd_xfer_softc(xfer); 673 struct usb_page_cache *pc; 674 uint32_t actlen; 675 676 switch (USB_GET_STATE(xfer)) { 677 case USB_ST_SETUP: 678 case USB_ST_TRANSFERRED: 679tr_setup: 680 pc = usbd_xfer_get_frame(xfer, 0); 681 if (ucom_get_data(&sc->sc_ucom, pc, 0, 682 USLCOM_BULK_BUF_SIZE, &actlen)) { 683 684 DPRINTF("actlen = %d\n", actlen); 685 686 usbd_xfer_set_frame_len(xfer, 0, actlen); 687 usbd_transfer_submit(xfer); 688 } 689 return; 690 691 default: /* Error */ 692 if (error != USB_ERR_CANCELLED) { 693 /* try to clear stall first */ 694 usbd_xfer_set_stall(xfer); 695 goto tr_setup; 696 } 697 return; 698 } 699} 700 701static void 702uslcom_read_callback(struct usb_xfer *xfer, usb_error_t error) 703{ 704 struct uslcom_softc *sc = usbd_xfer_softc(xfer); 705 struct usb_page_cache *pc; 706 int actlen; 707 708 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 709 710 switch (USB_GET_STATE(xfer)) { 711 case USB_ST_TRANSFERRED: 712 pc = usbd_xfer_get_frame(xfer, 0); 713 ucom_put_data(&sc->sc_ucom, pc, 0, actlen); 714 715 case USB_ST_SETUP: 716tr_setup: 717 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 718 usbd_transfer_submit(xfer); 719 return; 720 721 default: /* Error */ 722 if (error != USB_ERR_CANCELLED) { 723 /* try to clear stall first */ 724 usbd_xfer_set_stall(xfer); 725 goto tr_setup; 726 } 727 return; 728 } 729} 730 731static void 732uslcom_control_callback(struct usb_xfer *xfer, usb_error_t error) 733{ 734 struct uslcom_softc *sc = usbd_xfer_softc(xfer); 735 struct usb_page_cache *pc; 736 struct usb_device_request req; 737 uint8_t msr = 0; 738 uint8_t buf; 739 740 switch (USB_GET_STATE(xfer)) { 741 case USB_ST_TRANSFERRED: 742 pc = usbd_xfer_get_frame(xfer, 1); 743 usbd_copy_out(pc, 0, &buf, sizeof(buf)); 744 if (buf & USLCOM_CTRL_CTS) 745 msr |= SER_CTS; 746 if (buf & USLCOM_CTRL_DSR) 747 msr |= SER_DSR; 748 if (buf & USLCOM_CTRL_RI) 749 msr |= SER_RI; 750 if (buf & USLCOM_CTRL_DCD) 751 msr |= SER_DCD; 752 753 if (msr != sc->sc_msr) { 754 DPRINTF("status change msr=0x%02x " 755 "(was 0x%02x)\n", msr, sc->sc_msr); 756 sc->sc_msr = msr; 757 ucom_status_change(&sc->sc_ucom); 758 } 759 break; 760 761 case USB_ST_SETUP: 762 req.bmRequestType = USLCOM_READ; 763 req.bRequest = USLCOM_RCTRL; 764 USETW(req.wValue, 0); 765 USETW(req.wIndex, USLCOM_PORT_NO); 766 USETW(req.wLength, sizeof(buf)); 767 768 usbd_xfer_set_frames(xfer, 2); 769 usbd_xfer_set_frame_len(xfer, 0, sizeof(req)); 770 usbd_xfer_set_frame_len(xfer, 1, sizeof(buf)); 771 772 pc = usbd_xfer_get_frame(xfer, 0); 773 usbd_copy_in(pc, 0, &req, sizeof(req)); 774 usbd_transfer_submit(xfer); 775 break; 776 777 default: /* error */ 778 if (error != USB_ERR_CANCELLED) 779 DPRINTF("error=%s\n", usbd_errstr(error)); 780 break; 781 } 782} 783 784static void 785uslcom_start_read(struct ucom_softc *ucom) 786{ 787 struct uslcom_softc *sc = ucom->sc_parent; 788 789 /* start read endpoint */ 790 usbd_transfer_start(sc->sc_xfer[USLCOM_BULK_DT_RD]); 791} 792 793static void 794uslcom_stop_read(struct ucom_softc *ucom) 795{ 796 struct uslcom_softc *sc = ucom->sc_parent; 797 798 /* stop read endpoint */ 799 usbd_transfer_stop(sc->sc_xfer[USLCOM_BULK_DT_RD]); 800} 801 802static void 803uslcom_start_write(struct ucom_softc *ucom) 804{ 805 struct uslcom_softc *sc = ucom->sc_parent; 806 807 usbd_transfer_start(sc->sc_xfer[USLCOM_BULK_DT_WR]); 808} 809 810static void 811uslcom_stop_write(struct ucom_softc *ucom) 812{ 813 struct uslcom_softc *sc = ucom->sc_parent; 814 815 usbd_transfer_stop(sc->sc_xfer[USLCOM_BULK_DT_WR]); 816} 817 818static void 819uslcom_poll(struct ucom_softc *ucom) 820{ 821 struct uslcom_softc *sc = ucom->sc_parent; 822 usbd_transfer_poll(sc->sc_xfer, USLCOM_N_TRANSFER); 823} 824