uslcom.c revision 238804
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 238804 2012-07-26 12:18:23Z gavin $"); 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_SET_BAUD_DIV 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_SET_BAUD_RATE 0x1e 80#define USLCOM_VENDOR_SPECIFIC 0xff 81 82/* USLCOM_UART values */ 83#define USLCOM_UART_DISABLE 0x00 84#define USLCOM_UART_ENABLE 0x01 85 86/* USLCOM_CTRL/USLCOM_RCTRL values */ 87#define USLCOM_CTRL_DTR_ON 0x0001 88#define USLCOM_CTRL_DTR_SET 0x0100 89#define USLCOM_CTRL_RTS_ON 0x0002 90#define USLCOM_CTRL_RTS_SET 0x0200 91#define USLCOM_CTRL_CTS 0x0010 92#define USLCOM_CTRL_DSR 0x0020 93#define USLCOM_CTRL_RI 0x0040 94#define USLCOM_CTRL_DCD 0x0080 95 96/* USLCOM_SET_BAUD_DIV values */ 97#define USLCOM_BAUD_REF 3686400 /* 3.6864 MHz */ 98 99/* USLCOM_DATA values */ 100#define USLCOM_STOP_BITS_1 0x00 101#define USLCOM_STOP_BITS_2 0x02 102#define USLCOM_PARITY_NONE 0x00 103#define USLCOM_PARITY_ODD 0x10 104#define USLCOM_PARITY_EVEN 0x20 105 106#define USLCOM_PORT_NO 0x0000 107 108/* USLCOM_BREAK values */ 109#define USLCOM_BREAK_OFF 0x00 110#define USLCOM_BREAK_ON 0x01 111 112/* USLCOM_SET_FLOWCTRL values - 1st word */ 113#define USLCOM_FLOW_DTR_ON 0x00000001 /* DTR static active */ 114#define USLCOM_FLOW_CTS_HS 0x00000008 /* CTS handshake */ 115/* USLCOM_SET_FLOWCTRL values - 2nd word */ 116#define USLCOM_FLOW_RTS_ON 0x00000040 /* RTS static active */ 117#define USLCOM_FLOW_RTS_HS 0x00000080 /* RTS handshake */ 118 119/* USLCOM_VENDOR_SPECIFIC values */ 120#define USLCOM_WRITE_LATCH 0x37E1 121#define USLCOM_READ_LATCH 0x00C2 122 123enum { 124 USLCOM_BULK_DT_WR, 125 USLCOM_BULK_DT_RD, 126 USLCOM_CTRL_DT_RD, 127 USLCOM_N_TRANSFER, 128}; 129 130struct uslcom_softc { 131 struct ucom_super_softc sc_super_ucom; 132 struct ucom_softc sc_ucom; 133 struct usb_callout sc_watchdog; 134 135 struct usb_xfer *sc_xfer[USLCOM_N_TRANSFER]; 136 struct usb_device *sc_udev; 137 struct mtx sc_mtx; 138 139 uint8_t sc_msr; 140 uint8_t sc_lsr; 141}; 142 143static device_probe_t uslcom_probe; 144static device_attach_t uslcom_attach; 145static device_detach_t uslcom_detach; 146 147static usb_callback_t uslcom_write_callback; 148static usb_callback_t uslcom_read_callback; 149static usb_callback_t uslcom_control_callback; 150 151static void uslcom_open(struct ucom_softc *); 152static void uslcom_close(struct ucom_softc *); 153static void uslcom_set_dtr(struct ucom_softc *, uint8_t); 154static void uslcom_set_rts(struct ucom_softc *, uint8_t); 155static void uslcom_set_break(struct ucom_softc *, uint8_t); 156static int uslcom_ioctl(struct ucom_softc *, uint32_t, caddr_t, int, 157 struct thread *); 158static int uslcom_pre_param(struct ucom_softc *, struct termios *); 159static void uslcom_param(struct ucom_softc *, struct termios *); 160static void uslcom_get_status(struct ucom_softc *, uint8_t *, uint8_t *); 161static void uslcom_start_read(struct ucom_softc *); 162static void uslcom_stop_read(struct ucom_softc *); 163static void uslcom_start_write(struct ucom_softc *); 164static void uslcom_stop_write(struct ucom_softc *); 165static void uslcom_poll(struct ucom_softc *ucom); 166 167static const struct usb_config uslcom_config[USLCOM_N_TRANSFER] = { 168 169 [USLCOM_BULK_DT_WR] = { 170 .type = UE_BULK, 171 .endpoint = UE_ADDR_ANY, 172 .direction = UE_DIR_OUT, 173 .bufsize = USLCOM_BULK_BUF_SIZE, 174 .flags = {.pipe_bof = 1,}, 175 .callback = &uslcom_write_callback, 176 }, 177 178 [USLCOM_BULK_DT_RD] = { 179 .type = UE_BULK, 180 .endpoint = UE_ADDR_ANY, 181 .direction = UE_DIR_IN, 182 .bufsize = USLCOM_BULK_BUF_SIZE, 183 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 184 .callback = &uslcom_read_callback, 185 }, 186 [USLCOM_CTRL_DT_RD] = { 187 .type = UE_CONTROL, 188 .endpoint = 0x00, 189 .direction = UE_DIR_ANY, 190 .bufsize = sizeof(struct usb_device_request) + 8, 191 .flags = {.pipe_bof = 1,}, 192 .callback = &uslcom_control_callback, 193 .timeout = 1000, /* 1 second timeout */ 194 }, 195}; 196 197static struct ucom_callback uslcom_callback = { 198 .ucom_cfg_open = &uslcom_open, 199 .ucom_cfg_close = &uslcom_close, 200 .ucom_cfg_get_status = &uslcom_get_status, 201 .ucom_cfg_set_dtr = &uslcom_set_dtr, 202 .ucom_cfg_set_rts = &uslcom_set_rts, 203 .ucom_cfg_set_break = &uslcom_set_break, 204 .ucom_ioctl = &uslcom_ioctl, 205 .ucom_cfg_param = &uslcom_param, 206 .ucom_pre_param = &uslcom_pre_param, 207 .ucom_start_read = &uslcom_start_read, 208 .ucom_stop_read = &uslcom_stop_read, 209 .ucom_start_write = &uslcom_start_write, 210 .ucom_stop_write = &uslcom_stop_write, 211 .ucom_poll = &uslcom_poll, 212}; 213 214static const STRUCT_USB_HOST_ID uslcom_devs[] = { 215#define USLCOM_DEV(v,p) { USB_VP(USB_VENDOR_##v, USB_PRODUCT_##v##_##p) } 216 USLCOM_DEV(BALTECH, CARDREADER), 217 USLCOM_DEV(CLIPSAL, 5000CT2), 218 USLCOM_DEV(CLIPSAL, 5500PACA), 219 USLCOM_DEV(CLIPSAL, 5500PCU), 220 USLCOM_DEV(CLIPSAL, 560884), 221 USLCOM_DEV(CLIPSAL, 5800PC), 222 USLCOM_DEV(CLIPSAL, C5000CT2), 223 USLCOM_DEV(CLIPSAL, L51xx), 224 USLCOM_DEV(DATAAPEX, MULTICOM), 225 USLCOM_DEV(DELL, DW700), 226 USLCOM_DEV(DIGIANSWER, ZIGBEE802154), 227 USLCOM_DEV(DYNASTREAM, ANTDEVBOARD), 228 USLCOM_DEV(DYNASTREAM, ANTDEVBOARD2), 229 USLCOM_DEV(DYNASTREAM, ANT2USB), 230 USLCOM_DEV(ELV, USBI2C), 231 USLCOM_DEV(FESTO, CMSP), 232 USLCOM_DEV(FESTO, CPX_USB), 233 USLCOM_DEV(FOXCONN, PIRELLI_DP_L10), 234 USLCOM_DEV(FOXCONN, TCOM_TC_300), 235 USLCOM_DEV(GEMALTO, PROXPU), 236 USLCOM_DEV(JABLOTRON, PC60B), 237 USLCOM_DEV(KAMSTRUP, OPTICALEYE), 238 USLCOM_DEV(KAMSTRUP, MBUS_250D), 239 USLCOM_DEV(LINKINSTRUMENTS, MSO19), 240 USLCOM_DEV(LINKINSTRUMENTS, MSO28), 241 USLCOM_DEV(LINKINSTRUMENTS, MSO28_2), 242 USLCOM_DEV(MEI, CASHFLOW_SC), 243 USLCOM_DEV(MEI, S2000), 244 USLCOM_DEV(OWEN, AC4), 245 USLCOM_DEV(PHILIPS, ACE1001), 246 USLCOM_DEV(PLX, CA42), 247 USLCOM_DEV(RENESAS, RX610), 248 USLCOM_DEV(SILABS, AC_SERV_CAN), 249 USLCOM_DEV(SILABS, AC_SERV_CIS), 250 USLCOM_DEV(SILABS, AC_SERV_IBUS), 251 USLCOM_DEV(SILABS, AC_SERV_OBD), 252 USLCOM_DEV(SILABS, AEROCOMM), 253 USLCOM_DEV(SILABS, AMBER_AMB2560), 254 USLCOM_DEV(SILABS, ARGUSISP), 255 USLCOM_DEV(SILABS, ARKHAM_DS101_A), 256 USLCOM_DEV(SILABS, ARKHAM_DS101_M), 257 USLCOM_DEV(SILABS, ARYGON_MIFARE), 258 USLCOM_DEV(SILABS, AVIT_USB_TTL), 259 USLCOM_DEV(SILABS, B_G_H3000), 260 USLCOM_DEV(SILABS, BALLUFF_RFID), 261 USLCOM_DEV(SILABS, BEI_VCP), 262 USLCOM_DEV(SILABS, BSM7DUSB), 263 USLCOM_DEV(SILABS, BURNSIDE), 264 USLCOM_DEV(SILABS, C2_EDGE_MODEM), 265 USLCOM_DEV(SILABS, CP2102), 266 USLCOM_DEV(SILABS, CP210X_2), 267 USLCOM_DEV(SILABS, CP210X_3), 268 USLCOM_DEV(SILABS, CP210X_4), 269 USLCOM_DEV(SILABS, CRUMB128), 270 USLCOM_DEV(SILABS, CYGNAL), 271 USLCOM_DEV(SILABS, CYGNAL_DEBUG), 272 USLCOM_DEV(SILABS, CYGNAL_GPS), 273 USLCOM_DEV(SILABS, DEGREE), 274 USLCOM_DEV(SILABS, DEKTEK_DTAPLUS), 275 USLCOM_DEV(SILABS, EMS_C1007), 276 USLCOM_DEV(SILABS, HAMLINKUSB), 277 USLCOM_DEV(SILABS, HELICOM), 278 USLCOM_DEV(SILABS, IMS_USB_RS422), 279 USLCOM_DEV(SILABS, INFINITY_MIC), 280 USLCOM_DEV(SILABS, INSYS_MODEM), 281 USLCOM_DEV(SILABS, IRZ_SG10), 282 USLCOM_DEV(SILABS, KYOCERA_GPS), 283 USLCOM_DEV(SILABS, LIPOWSKY_HARP), 284 USLCOM_DEV(SILABS, LIPOWSKY_JTAG), 285 USLCOM_DEV(SILABS, LIPOWSKY_LIN), 286 USLCOM_DEV(SILABS, MC35PU), 287 USLCOM_DEV(SILABS, MJS_TOSLINK), 288 USLCOM_DEV(SILABS, MSD_DASHHAWK), 289 USLCOM_DEV(SILABS, MULTIPLEX_RC), 290 USLCOM_DEV(SILABS, OPTRIS_MSPRO), 291 USLCOM_DEV(SILABS, POLOLU), 292 USLCOM_DEV(SILABS, PROCYON_AVS), 293 USLCOM_DEV(SILABS, SB_PARAMOUNT_ME), 294 USLCOM_DEV(SILABS, SUUNTO), 295 USLCOM_DEV(SILABS, TAMSMASTER), 296 USLCOM_DEV(SILABS, TELEGESIS_ETRX2), 297 USLCOM_DEV(SILABS, TRACIENT), 298 USLCOM_DEV(SILABS, TRAQMATE), 299 USLCOM_DEV(SILABS, USBCOUNT50), 300 USLCOM_DEV(SILABS, USBPULSE100), 301 USLCOM_DEV(SILABS, USBSCOPE50), 302 USLCOM_DEV(SILABS, USBWAVE12), 303 USLCOM_DEV(SILABS, VSTABI), 304 USLCOM_DEV(SILABS, WAVIT), 305 USLCOM_DEV(SILABS, WMRBATT), 306 USLCOM_DEV(SILABS, WMRRIGBLASTER), 307 USLCOM_DEV(SILABS, WMRRIGTALK), 308 USLCOM_DEV(SILABS, ZEPHYR_BIO), 309 USLCOM_DEV(SILABS2, DCU11CLONE), 310 USLCOM_DEV(SILABS3, GPRS_MODEM), 311 USLCOM_DEV(SILABS4, 100EU_MODEM), 312 USLCOM_DEV(SYNTECH, CYPHERLAB100), 313 USLCOM_DEV(USI, MC60), 314 USLCOM_DEV(VAISALA, CABLE), 315 USLCOM_DEV(WAGO, SERVICECABLE), 316 USLCOM_DEV(WAVESENSE, JAZZ), 317 USLCOM_DEV(WIENERPLEINBAUS, PL512), 318 USLCOM_DEV(WIENERPLEINBAUS, RCM), 319 USLCOM_DEV(WIENERPLEINBAUS, MPOD), 320 USLCOM_DEV(WIENERPLEINBAUS, CML), 321#undef USLCOM_DEV 322}; 323 324static device_method_t uslcom_methods[] = { 325 DEVMETHOD(device_probe, uslcom_probe), 326 DEVMETHOD(device_attach, uslcom_attach), 327 DEVMETHOD(device_detach, uslcom_detach), 328 {0, 0} 329}; 330 331static devclass_t uslcom_devclass; 332 333static driver_t uslcom_driver = { 334 .name = "uslcom", 335 .methods = uslcom_methods, 336 .size = sizeof(struct uslcom_softc), 337}; 338 339DRIVER_MODULE(uslcom, uhub, uslcom_driver, uslcom_devclass, NULL, 0); 340MODULE_DEPEND(uslcom, ucom, 1, 1, 1); 341MODULE_DEPEND(uslcom, usb, 1, 1, 1); 342MODULE_VERSION(uslcom, 1); 343 344static void 345uslcom_watchdog(void *arg) 346{ 347 struct uslcom_softc *sc = arg; 348 349 mtx_assert(&sc->sc_mtx, MA_OWNED); 350 351 usbd_transfer_start(sc->sc_xfer[USLCOM_CTRL_DT_RD]); 352 353 usb_callout_reset(&sc->sc_watchdog, 354 hz / 4, &uslcom_watchdog, sc); 355} 356 357static int 358uslcom_probe(device_t dev) 359{ 360 struct usb_attach_arg *uaa = device_get_ivars(dev); 361 362 DPRINTFN(11, "\n"); 363 364 if (uaa->usb_mode != USB_MODE_HOST) { 365 return (ENXIO); 366 } 367 if (uaa->info.bConfigIndex != USLCOM_CONFIG_INDEX) { 368 return (ENXIO); 369 } 370 if (uaa->info.bIfaceIndex != USLCOM_IFACE_INDEX) { 371 return (ENXIO); 372 } 373 return (usbd_lookup_id_by_uaa(uslcom_devs, sizeof(uslcom_devs), uaa)); 374} 375 376static int 377uslcom_attach(device_t dev) 378{ 379 struct usb_attach_arg *uaa = device_get_ivars(dev); 380 struct uslcom_softc *sc = device_get_softc(dev); 381 int error; 382 383 DPRINTFN(11, "\n"); 384 385 device_set_usb_desc(dev); 386 mtx_init(&sc->sc_mtx, "uslcom", NULL, MTX_DEF); 387 usb_callout_init_mtx(&sc->sc_watchdog, &sc->sc_mtx, 0); 388 389 sc->sc_udev = uaa->device; 390 391 error = usbd_transfer_setup(uaa->device, 392 &uaa->info.bIfaceIndex, sc->sc_xfer, uslcom_config, 393 USLCOM_N_TRANSFER, sc, &sc->sc_mtx); 394 if (error) { 395 DPRINTF("one or more missing USB endpoints, " 396 "error=%s\n", usbd_errstr(error)); 397 goto detach; 398 } 399 /* clear stall at first run */ 400 mtx_lock(&sc->sc_mtx); 401 usbd_xfer_set_stall(sc->sc_xfer[USLCOM_BULK_DT_WR]); 402 usbd_xfer_set_stall(sc->sc_xfer[USLCOM_BULK_DT_RD]); 403 mtx_unlock(&sc->sc_mtx); 404 405 error = ucom_attach(&sc->sc_super_ucom, &sc->sc_ucom, 1, sc, 406 &uslcom_callback, &sc->sc_mtx); 407 if (error) { 408 goto detach; 409 } 410 ucom_set_pnpinfo_usb(&sc->sc_super_ucom, dev); 411 412 return (0); 413 414detach: 415 uslcom_detach(dev); 416 return (ENXIO); 417} 418 419static int 420uslcom_detach(device_t dev) 421{ 422 struct uslcom_softc *sc = device_get_softc(dev); 423 424 DPRINTF("sc=%p\n", sc); 425 426 ucom_detach(&sc->sc_super_ucom, &sc->sc_ucom); 427 usbd_transfer_unsetup(sc->sc_xfer, USLCOM_N_TRANSFER); 428 429 usb_callout_drain(&sc->sc_watchdog); 430 mtx_destroy(&sc->sc_mtx); 431 432 return (0); 433} 434 435static void 436uslcom_open(struct ucom_softc *ucom) 437{ 438 struct uslcom_softc *sc = ucom->sc_parent; 439 struct usb_device_request req; 440 441 req.bmRequestType = USLCOM_WRITE; 442 req.bRequest = USLCOM_UART; 443 USETW(req.wValue, USLCOM_UART_ENABLE); 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 enable failed (ignored)\n"); 450 } 451 452 /* start polling status */ 453 uslcom_watchdog(sc); 454} 455 456static void 457uslcom_close(struct ucom_softc *ucom) 458{ 459 struct uslcom_softc *sc = ucom->sc_parent; 460 struct usb_device_request req; 461 462 /* stop polling status */ 463 usb_callout_stop(&sc->sc_watchdog); 464 465 req.bmRequestType = USLCOM_WRITE; 466 req.bRequest = USLCOM_UART; 467 USETW(req.wValue, USLCOM_UART_DISABLE); 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("UART disable failed (ignored)\n"); 474 } 475} 476 477static void 478uslcom_set_dtr(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_DTR_ON : 0; 487 ctl |= USLCOM_CTRL_DTR_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 void 502uslcom_set_rts(struct ucom_softc *ucom, uint8_t onoff) 503{ 504 struct uslcom_softc *sc = ucom->sc_parent; 505 struct usb_device_request req; 506 uint16_t ctl; 507 508 DPRINTF("onoff = %d\n", onoff); 509 510 ctl = onoff ? USLCOM_CTRL_RTS_ON : 0; 511 ctl |= USLCOM_CTRL_RTS_SET; 512 513 req.bmRequestType = USLCOM_WRITE; 514 req.bRequest = USLCOM_CTRL; 515 USETW(req.wValue, ctl); 516 USETW(req.wIndex, USLCOM_PORT_NO); 517 USETW(req.wLength, 0); 518 519 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 520 &req, NULL, 0, 1000)) { 521 DPRINTF("Setting DTR failed (ignored)\n"); 522 } 523} 524 525static int 526uslcom_pre_param(struct ucom_softc *ucom, struct termios *t) 527{ 528 if (t->c_ospeed <= 0 || t->c_ospeed > 921600) 529 return (EINVAL); 530 return (0); 531} 532 533static void 534uslcom_param(struct ucom_softc *ucom, struct termios *t) 535{ 536 struct uslcom_softc *sc = ucom->sc_parent; 537 struct usb_device_request req; 538 uint32_t baudrate, flowctrl[4]; 539 uint16_t data; 540 541 DPRINTF("\n"); 542 543 baudrate = t->c_ospeed; 544 req.bmRequestType = USLCOM_WRITE; 545 req.bRequest = USLCOM_SET_BAUD_RATE; 546 USETW(req.wValue, 0); 547 USETW(req.wIndex, USLCOM_PORT_NO); 548 USETW(req.wLength, sizeof(baudrate)); 549 550 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 551 &req, &baudrate, 0, 1000)) { 552 DPRINTF("Set baudrate failed (ignored)\n"); 553 } 554 555 if (t->c_cflag & CSTOPB) 556 data = USLCOM_STOP_BITS_2; 557 else 558 data = USLCOM_STOP_BITS_1; 559 if (t->c_cflag & PARENB) { 560 if (t->c_cflag & PARODD) 561 data |= USLCOM_PARITY_ODD; 562 else 563 data |= USLCOM_PARITY_EVEN; 564 } else 565 data |= USLCOM_PARITY_NONE; 566 switch (t->c_cflag & CSIZE) { 567 case CS5: 568 data |= USLCOM_SET_DATA_BITS(5); 569 break; 570 case CS6: 571 data |= USLCOM_SET_DATA_BITS(6); 572 break; 573 case CS7: 574 data |= USLCOM_SET_DATA_BITS(7); 575 break; 576 case CS8: 577 data |= USLCOM_SET_DATA_BITS(8); 578 break; 579 } 580 581 req.bmRequestType = USLCOM_WRITE; 582 req.bRequest = USLCOM_DATA; 583 USETW(req.wValue, data); 584 USETW(req.wIndex, USLCOM_PORT_NO); 585 USETW(req.wLength, 0); 586 587 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 588 &req, NULL, 0, 1000)) { 589 DPRINTF("Set format failed (ignored)\n"); 590 } 591 592 if (t->c_cflag & CRTSCTS) { 593 flowctrl[0] = htole32(USLCOM_FLOW_DTR_ON | USLCOM_FLOW_CTS_HS); 594 flowctrl[1] = htole32(USLCOM_FLOW_RTS_HS); 595 flowctrl[2] = 0; 596 flowctrl[3] = 0; 597 } else { 598 flowctrl[0] = htole32(USLCOM_FLOW_DTR_ON); 599 flowctrl[1] = htole32(USLCOM_FLOW_RTS_ON); 600 flowctrl[2] = 0; 601 flowctrl[3] = 0; 602 } 603 req.bmRequestType = USLCOM_WRITE; 604 req.bRequest = USLCOM_SET_FLOWCTRL; 605 USETW(req.wValue, 0); 606 USETW(req.wIndex, USLCOM_PORT_NO); 607 USETW(req.wLength, sizeof(flowctrl)); 608 609 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 610 &req, flowctrl, 0, 1000)) { 611 DPRINTF("Set flowcontrol failed (ignored)\n"); 612 } 613} 614 615static void 616uslcom_get_status(struct ucom_softc *ucom, uint8_t *lsr, uint8_t *msr) 617{ 618 struct uslcom_softc *sc = ucom->sc_parent; 619 620 DPRINTF("\n"); 621 622 *lsr = sc->sc_lsr; 623 *msr = sc->sc_msr; 624} 625 626static void 627uslcom_set_break(struct ucom_softc *ucom, uint8_t onoff) 628{ 629 struct uslcom_softc *sc = ucom->sc_parent; 630 struct usb_device_request req; 631 uint16_t brk = onoff ? USLCOM_BREAK_ON : USLCOM_BREAK_OFF; 632 633 req.bmRequestType = USLCOM_WRITE; 634 req.bRequest = USLCOM_BREAK; 635 USETW(req.wValue, brk); 636 USETW(req.wIndex, USLCOM_PORT_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 BREAK failed (ignored)\n"); 642 } 643} 644 645static int 646uslcom_ioctl(struct ucom_softc *ucom, uint32_t cmd, caddr_t data, 647 int flag, struct thread *td) 648{ 649 struct uslcom_softc *sc = ucom->sc_parent; 650 struct usb_device_request req; 651 int error = 0; 652 uint8_t latch; 653 654 DPRINTF("cmd=0x%08x\n", cmd); 655 656 switch (cmd) { 657 case USB_GET_GPIO: 658 req.bmRequestType = USLCOM_READ; 659 req.bRequest = USLCOM_VENDOR_SPECIFIC; 660 USETW(req.wValue, USLCOM_READ_LATCH); 661 USETW(req.wIndex, 0); 662 USETW(req.wLength, sizeof(latch)); 663 664 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 665 &req, &latch, 0, 1000)) { 666 DPRINTF("Get LATCH failed\n"); 667 error = EIO; 668 } 669 *(int *)data = latch; 670 break; 671 672 case USB_SET_GPIO: 673 req.bmRequestType = USLCOM_WRITE; 674 req.bRequest = USLCOM_VENDOR_SPECIFIC; 675 USETW(req.wValue, USLCOM_WRITE_LATCH); 676 USETW(req.wIndex, (*(int *)data)); 677 USETW(req.wLength, 0); 678 679 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 680 &req, NULL, 0, 1000)) { 681 DPRINTF("Set LATCH failed\n"); 682 error = EIO; 683 } 684 break; 685 686 default: 687 DPRINTF("Unknown IOCTL\n"); 688 error = ENOIOCTL; 689 break; 690 } 691 return (error); 692} 693 694static void 695uslcom_write_callback(struct usb_xfer *xfer, usb_error_t error) 696{ 697 struct uslcom_softc *sc = usbd_xfer_softc(xfer); 698 struct usb_page_cache *pc; 699 uint32_t actlen; 700 701 switch (USB_GET_STATE(xfer)) { 702 case USB_ST_SETUP: 703 case USB_ST_TRANSFERRED: 704tr_setup: 705 pc = usbd_xfer_get_frame(xfer, 0); 706 if (ucom_get_data(&sc->sc_ucom, pc, 0, 707 USLCOM_BULK_BUF_SIZE, &actlen)) { 708 709 DPRINTF("actlen = %d\n", actlen); 710 711 usbd_xfer_set_frame_len(xfer, 0, actlen); 712 usbd_transfer_submit(xfer); 713 } 714 return; 715 716 default: /* Error */ 717 if (error != USB_ERR_CANCELLED) { 718 /* try to clear stall first */ 719 usbd_xfer_set_stall(xfer); 720 goto tr_setup; 721 } 722 return; 723 } 724} 725 726static void 727uslcom_read_callback(struct usb_xfer *xfer, usb_error_t error) 728{ 729 struct uslcom_softc *sc = usbd_xfer_softc(xfer); 730 struct usb_page_cache *pc; 731 int actlen; 732 733 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 734 735 switch (USB_GET_STATE(xfer)) { 736 case USB_ST_TRANSFERRED: 737 pc = usbd_xfer_get_frame(xfer, 0); 738 ucom_put_data(&sc->sc_ucom, pc, 0, actlen); 739 740 case USB_ST_SETUP: 741tr_setup: 742 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 743 usbd_transfer_submit(xfer); 744 return; 745 746 default: /* Error */ 747 if (error != USB_ERR_CANCELLED) { 748 /* try to clear stall first */ 749 usbd_xfer_set_stall(xfer); 750 goto tr_setup; 751 } 752 return; 753 } 754} 755 756static void 757uslcom_control_callback(struct usb_xfer *xfer, usb_error_t error) 758{ 759 struct uslcom_softc *sc = usbd_xfer_softc(xfer); 760 struct usb_page_cache *pc; 761 struct usb_device_request req; 762 uint8_t msr = 0; 763 uint8_t buf; 764 765 switch (USB_GET_STATE(xfer)) { 766 case USB_ST_TRANSFERRED: 767 pc = usbd_xfer_get_frame(xfer, 1); 768 usbd_copy_out(pc, 0, &buf, sizeof(buf)); 769 if (buf & USLCOM_CTRL_CTS) 770 msr |= SER_CTS; 771 if (buf & USLCOM_CTRL_DSR) 772 msr |= SER_DSR; 773 if (buf & USLCOM_CTRL_RI) 774 msr |= SER_RI; 775 if (buf & USLCOM_CTRL_DCD) 776 msr |= SER_DCD; 777 778 if (msr != sc->sc_msr) { 779 DPRINTF("status change msr=0x%02x " 780 "(was 0x%02x)\n", msr, sc->sc_msr); 781 sc->sc_msr = msr; 782 ucom_status_change(&sc->sc_ucom); 783 } 784 break; 785 786 case USB_ST_SETUP: 787 req.bmRequestType = USLCOM_READ; 788 req.bRequest = USLCOM_RCTRL; 789 USETW(req.wValue, 0); 790 USETW(req.wIndex, USLCOM_PORT_NO); 791 USETW(req.wLength, sizeof(buf)); 792 793 usbd_xfer_set_frames(xfer, 2); 794 usbd_xfer_set_frame_len(xfer, 0, sizeof(req)); 795 usbd_xfer_set_frame_len(xfer, 1, sizeof(buf)); 796 797 pc = usbd_xfer_get_frame(xfer, 0); 798 usbd_copy_in(pc, 0, &req, sizeof(req)); 799 usbd_transfer_submit(xfer); 800 break; 801 802 default: /* error */ 803 if (error != USB_ERR_CANCELLED) 804 DPRINTF("error=%s\n", usbd_errstr(error)); 805 break; 806 } 807} 808 809static void 810uslcom_start_read(struct ucom_softc *ucom) 811{ 812 struct uslcom_softc *sc = ucom->sc_parent; 813 814 /* start read endpoint */ 815 usbd_transfer_start(sc->sc_xfer[USLCOM_BULK_DT_RD]); 816} 817 818static void 819uslcom_stop_read(struct ucom_softc *ucom) 820{ 821 struct uslcom_softc *sc = ucom->sc_parent; 822 823 /* stop read endpoint */ 824 usbd_transfer_stop(sc->sc_xfer[USLCOM_BULK_DT_RD]); 825} 826 827static void 828uslcom_start_write(struct ucom_softc *ucom) 829{ 830 struct uslcom_softc *sc = ucom->sc_parent; 831 832 usbd_transfer_start(sc->sc_xfer[USLCOM_BULK_DT_WR]); 833} 834 835static void 836uslcom_stop_write(struct ucom_softc *ucom) 837{ 838 struct uslcom_softc *sc = ucom->sc_parent; 839 840 usbd_transfer_stop(sc->sc_xfer[USLCOM_BULK_DT_WR]); 841} 842 843static void 844uslcom_poll(struct ucom_softc *ucom) 845{ 846 struct uslcom_softc *sc = ucom->sc_parent; 847 usbd_transfer_poll(sc->sc_xfer, USLCOM_N_TRANSFER); 848} 849