1 /* $OpenBSD: uslcom.c,v 1.17 2007/11/24 10:52:12 jsg Exp $ */ 2 3 /* 4 * Copyright (c) 2006 Jonathan Gray <jsg@openbsd.org> 5 * 6 * Permission to use, copy, modify, and distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17 */ 18 19 #include <sys/stdint.h> 20 #include <sys/param.h> 21 #include <sys/queue.h> 22 #include <sys/types.h> 23 #include <sys/systm.h> 24 #include <sys/kernel.h> 25 #include <sys/bus.h> 26 #include <sys/module.h> 27 #include <sys/lock.h> 28 #include <sys/condvar.h> 29 #include <sys/sysctl.h> 30 #include <sys/unistd.h> 31 #include <sys/callout.h> 32 #include <sys/malloc.h> 33 #include <sys/priv.h> 34 35 #include <bus/u4b/usb.h> 36 #include <bus/u4b/usbdi.h> 37 #include <bus/u4b/usbdi_util.h> 38 #include <bus/u4b/usb_ioctl.h> 39 #include <bus/u4b/usbdevs.h> 40 41 #define USB_DEBUG_VAR uslcom_debug 42 #include <bus/u4b/usb_debug.h> 43 #include <bus/u4b/usb_process.h> 44 45 #include <bus/u4b/serial/usb_serial.h> 46 47 #ifdef USB_DEBUG 48 static int uslcom_debug = 0; 49 50 static SYSCTL_NODE(_hw_usb, OID_AUTO, uslcom, CTLFLAG_RW, 0, "USB uslcom"); 51 SYSCTL_INT(_hw_usb_uslcom, OID_AUTO, debug, CTLFLAG_RW, 52 &uslcom_debug, 0, "Debug level"); 53 #endif 54 55 #define USLCOM_BULK_BUF_SIZE 1024 56 #define USLCOM_CONFIG_INDEX 0 57 #define USLCOM_IFACE_INDEX 0 58 59 #define USLCOM_SET_DATA_BITS(x) ((x) << 8) 60 61 /* Request types */ 62 #define USLCOM_WRITE 0x41 63 #define USLCOM_READ 0xc1 64 65 /* Request codes */ 66 #define USLCOM_UART 0x00 67 #define USLCOM_BAUD_RATE 0x01 68 #define USLCOM_DATA 0x03 69 #define USLCOM_BREAK 0x05 70 #define USLCOM_CTRL 0x07 71 #define USLCOM_RCTRL 0x08 72 #define USLCOM_SET_FLOWCTRL 0x13 73 #define USLCOM_VENDOR_SPECIFIC 0xff 74 75 /* USLCOM_UART values */ 76 #define USLCOM_UART_DISABLE 0x00 77 #define USLCOM_UART_ENABLE 0x01 78 79 /* USLCOM_CTRL/USLCOM_RCTRL values */ 80 #define USLCOM_CTRL_DTR_ON 0x0001 81 #define USLCOM_CTRL_DTR_SET 0x0100 82 #define USLCOM_CTRL_RTS_ON 0x0002 83 #define USLCOM_CTRL_RTS_SET 0x0200 84 #define USLCOM_CTRL_CTS 0x0010 85 #define USLCOM_CTRL_DSR 0x0020 86 #define USLCOM_CTRL_RI 0x0040 87 #define USLCOM_CTRL_DCD 0x0080 88 89 /* USLCOM_BAUD_RATE values */ 90 #define USLCOM_BAUD_REF 0x384000 91 92 /* USLCOM_DATA values */ 93 #define USLCOM_STOP_BITS_1 0x00 94 #define USLCOM_STOP_BITS_2 0x02 95 #define USLCOM_PARITY_NONE 0x00 96 #define USLCOM_PARITY_ODD 0x10 97 #define USLCOM_PARITY_EVEN 0x20 98 99 #define USLCOM_PORT_NO 0x0000 100 101 /* USLCOM_BREAK values */ 102 #define USLCOM_BREAK_OFF 0x00 103 #define USLCOM_BREAK_ON 0x01 104 105 /* USLCOM_SET_FLOWCTRL values - 1st word */ 106 #define USLCOM_FLOW_DTR_ON 0x00000001 /* DTR static active */ 107 #define USLCOM_FLOW_CTS_HS 0x00000008 /* CTS handshake */ 108 /* USLCOM_SET_FLOWCTRL values - 2nd word */ 109 #define USLCOM_FLOW_RTS_ON 0x00000040 /* RTS static active */ 110 #define USLCOM_FLOW_RTS_HS 0x00000080 /* RTS handshake */ 111 112 /* USLCOM_VENDOR_SPECIFIC values */ 113 #define USLCOM_WRITE_LATCH 0x37E1 114 #define USLCOM_READ_LATCH 0x00C2 115 116 enum { 117 USLCOM_BULK_DT_WR, 118 USLCOM_BULK_DT_RD, 119 USLCOM_CTRL_DT_RD, 120 USLCOM_N_TRANSFER, 121 }; 122 123 struct uslcom_softc { 124 struct ucom_super_softc sc_super_ucom; 125 struct ucom_softc sc_ucom; 126 struct usb_callout sc_watchdog; 127 128 struct usb_xfer *sc_xfer[USLCOM_N_TRANSFER]; 129 struct usb_device *sc_udev; 130 struct lock sc_lock; 131 132 uint8_t sc_msr; 133 uint8_t sc_lsr; 134 }; 135 136 static device_probe_t uslcom_probe; 137 static device_attach_t uslcom_attach; 138 static device_detach_t uslcom_detach; 139 140 static usb_callback_t uslcom_write_callback; 141 static usb_callback_t uslcom_read_callback; 142 static usb_callback_t uslcom_control_callback; 143 144 static void uslcom_open(struct ucom_softc *); 145 static void uslcom_close(struct ucom_softc *); 146 static void uslcom_set_dtr(struct ucom_softc *, uint8_t); 147 static void uslcom_set_rts(struct ucom_softc *, uint8_t); 148 static void uslcom_set_break(struct ucom_softc *, uint8_t); 149 static int uslcom_ioctl(struct ucom_softc *, uint32_t, caddr_t, int, 150 struct thread *); 151 static int uslcom_pre_param(struct ucom_softc *, struct termios *); 152 static void uslcom_param(struct ucom_softc *, struct termios *); 153 static void uslcom_get_status(struct ucom_softc *, uint8_t *, uint8_t *); 154 static void uslcom_start_read(struct ucom_softc *); 155 static void uslcom_stop_read(struct ucom_softc *); 156 static void uslcom_start_write(struct ucom_softc *); 157 static void uslcom_stop_write(struct ucom_softc *); 158 static void uslcom_poll(struct ucom_softc *ucom); 159 160 static const struct usb_config uslcom_config[USLCOM_N_TRANSFER] = { 161 162 [USLCOM_BULK_DT_WR] = { 163 .type = UE_BULK, 164 .endpoint = UE_ADDR_ANY, 165 .direction = UE_DIR_OUT, 166 .bufsize = USLCOM_BULK_BUF_SIZE, 167 .flags = {.pipe_bof = 1,}, 168 .callback = &uslcom_write_callback, 169 }, 170 171 [USLCOM_BULK_DT_RD] = { 172 .type = UE_BULK, 173 .endpoint = UE_ADDR_ANY, 174 .direction = UE_DIR_IN, 175 .bufsize = USLCOM_BULK_BUF_SIZE, 176 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 177 .callback = &uslcom_read_callback, 178 }, 179 [USLCOM_CTRL_DT_RD] = { 180 .type = UE_CONTROL, 181 .endpoint = 0x00, 182 .direction = UE_DIR_ANY, 183 .bufsize = sizeof(struct usb_device_request) + 8, 184 .flags = {.pipe_bof = 1,}, 185 .callback = &uslcom_control_callback, 186 .timeout = 1000, /* 1 second timeout */ 187 }, 188 }; 189 190 static struct ucom_callback uslcom_callback = { 191 .ucom_cfg_open = &uslcom_open, 192 .ucom_cfg_close = &uslcom_close, 193 .ucom_cfg_get_status = &uslcom_get_status, 194 .ucom_cfg_set_dtr = &uslcom_set_dtr, 195 .ucom_cfg_set_rts = &uslcom_set_rts, 196 .ucom_cfg_set_break = &uslcom_set_break, 197 .ucom_ioctl = &uslcom_ioctl, 198 .ucom_cfg_param = &uslcom_param, 199 .ucom_pre_param = &uslcom_pre_param, 200 .ucom_start_read = &uslcom_start_read, 201 .ucom_stop_read = &uslcom_stop_read, 202 .ucom_start_write = &uslcom_start_write, 203 .ucom_stop_write = &uslcom_stop_write, 204 .ucom_poll = &uslcom_poll, 205 }; 206 207 static const STRUCT_USB_HOST_ID uslcom_devs[] = { 208 #define USLCOM_DEV(v,p) { USB_VP(USB_VENDOR_##v, USB_PRODUCT_##v##_##p) } 209 USLCOM_DEV(BALTECH, CARDREADER), 210 USLCOM_DEV(CLIPSAL, 5500PCU), 211 USLCOM_DEV(DATAAPEX, MULTICOM), 212 USLCOM_DEV(DELL, DW700), 213 USLCOM_DEV(DIGIANSWER, ZIGBEE802154), 214 USLCOM_DEV(DYNASTREAM, ANTDEVBOARD), 215 USLCOM_DEV(DYNASTREAM, ANTDEVBOARD2), 216 USLCOM_DEV(DYNASTREAM, ANT2USB), 217 USLCOM_DEV(ELV, USBI2C), 218 USLCOM_DEV(FOXCONN, PIRELLI_DP_L10), 219 USLCOM_DEV(FOXCONN, TCOM_TC_300), 220 USLCOM_DEV(GEMALTO, PROXPU), 221 USLCOM_DEV(JABLOTRON, PC60B), 222 USLCOM_DEV(MEI, CASHFLOW_SC), 223 USLCOM_DEV(MEI, S2000), 224 USLCOM_DEV(JABLOTRON, PC60B), 225 USLCOM_DEV(OWEN, AC4), 226 USLCOM_DEV(PHILIPS, ACE1001), 227 USLCOM_DEV(PLX, CA42), 228 USLCOM_DEV(RENESAS, RX610), 229 USLCOM_DEV(SILABS, AEROCOMM), 230 USLCOM_DEV(SILABS, AMBER_AMB2560), 231 USLCOM_DEV(SILABS, ARGUSISP), 232 USLCOM_DEV(SILABS, ARKHAM_DS101_A), 233 USLCOM_DEV(SILABS, ARKHAM_DS101_M), 234 USLCOM_DEV(SILABS, ARYGON_MIFARE), 235 USLCOM_DEV(SILABS, AVIT_USB_TTL), 236 USLCOM_DEV(SILABS, B_G_H3000), 237 USLCOM_DEV(SILABS, BALLUFF_RFID), 238 USLCOM_DEV(SILABS, BEI_VCP), 239 USLCOM_DEV(SILABS, BSM7DUSB), 240 USLCOM_DEV(SILABS, BURNSIDE), 241 USLCOM_DEV(SILABS, C2_EDGE_MODEM), 242 USLCOM_DEV(SILABS, CP2102), 243 USLCOM_DEV(SILABS, CP210X_2), 244 USLCOM_DEV(SILABS, CRUMB128), 245 USLCOM_DEV(SILABS, CYGNAL), 246 USLCOM_DEV(SILABS, CYGNAL_DEBUG), 247 USLCOM_DEV(SILABS, CYGNAL_GPS), 248 USLCOM_DEV(SILABS, DEGREE), 249 USLCOM_DEV(SILABS, EMS_C1007), 250 USLCOM_DEV(SILABS, HELICOM), 251 USLCOM_DEV(SILABS, IMS_USB_RS422), 252 USLCOM_DEV(SILABS, INFINITY_MIC), 253 USLCOM_DEV(SILABS, INSYS_MODEM), 254 USLCOM_DEV(SILABS, KYOCERA_GPS), 255 USLCOM_DEV(SILABS, LIPOWSKY_HARP), 256 USLCOM_DEV(SILABS, LIPOWSKY_JTAG), 257 USLCOM_DEV(SILABS, LIPOWSKY_LIN), 258 USLCOM_DEV(SILABS, MC35PU), 259 USLCOM_DEV(SILABS, MJS_TOSLINK), 260 USLCOM_DEV(SILABS, MSD_DASHHAWK), 261 USLCOM_DEV(SILABS, POLOLU), 262 USLCOM_DEV(SILABS, PROCYON_AVS), 263 USLCOM_DEV(SILABS, SB_PARAMOUNT_ME), 264 USLCOM_DEV(SILABS, SUUNTO), 265 USLCOM_DEV(SILABS, TAMSMASTER), 266 USLCOM_DEV(SILABS, TELEGESIS_ETRX2), 267 USLCOM_DEV(SILABS, TRACIENT), 268 USLCOM_DEV(SILABS, TRAQMATE), 269 USLCOM_DEV(SILABS, USBCOUNT50), 270 USLCOM_DEV(SILABS, USBPULSE100), 271 USLCOM_DEV(SILABS, USBSCOPE50), 272 USLCOM_DEV(SILABS, USBWAVE12), 273 USLCOM_DEV(SILABS, VSTABI), 274 USLCOM_DEV(SILABS, WAVIT), 275 USLCOM_DEV(SILABS, WMRBATT), 276 USLCOM_DEV(SILABS, WMRRIGBLASTER), 277 USLCOM_DEV(SILABS, WMRRIGTALK), 278 USLCOM_DEV(SILABS, ZEPHYR_BIO), 279 USLCOM_DEV(SILABS2, DCU11CLONE), 280 USLCOM_DEV(SILABS3, GPRS_MODEM), 281 USLCOM_DEV(SILABS4, 100EU_MODEM), 282 USLCOM_DEV(SYNTECH, CYPHERLAB100), 283 USLCOM_DEV(USI, MC60), 284 USLCOM_DEV(VAISALA, CABLE), 285 USLCOM_DEV(WAGO, SERVICECABLE), 286 USLCOM_DEV(WAVESENSE, JAZZ), 287 USLCOM_DEV(WIENERPLEINBAUS, PL512), 288 USLCOM_DEV(WIENERPLEINBAUS, RCM), 289 USLCOM_DEV(WIENERPLEINBAUS, MPOD), 290 USLCOM_DEV(WIENERPLEINBAUS, CML), 291 #undef USLCOM_DEV 292 }; 293 294 static device_method_t uslcom_methods[] = { 295 DEVMETHOD(device_probe, uslcom_probe), 296 DEVMETHOD(device_attach, uslcom_attach), 297 DEVMETHOD(device_detach, uslcom_detach), 298 DEVMETHOD_END 299 }; 300 301 static devclass_t uslcom_devclass; 302 303 static driver_t uslcom_driver = { 304 .name = "uslcom", 305 .methods = uslcom_methods, 306 .size = sizeof(struct uslcom_softc), 307 }; 308 309 DRIVER_MODULE(uslcom, uhub, uslcom_driver, uslcom_devclass, NULL, 0); 310 MODULE_DEPEND(uslcom, ucom, 1, 1, 1); 311 MODULE_DEPEND(uslcom, usb, 1, 1, 1); 312 MODULE_VERSION(uslcom, 1); 313 314 static void 315 uslcom_watchdog(void *arg) 316 { 317 struct uslcom_softc *sc = arg; 318 319 KKASSERT(lockowned(&sc->sc_lock)); 320 321 usbd_transfer_start(sc->sc_xfer[USLCOM_CTRL_DT_RD]); 322 323 usb_callout_reset(&sc->sc_watchdog, 324 hz / 4, &uslcom_watchdog, sc); 325 } 326 327 static int 328 uslcom_probe(device_t dev) 329 { 330 struct usb_attach_arg *uaa = device_get_ivars(dev); 331 332 DPRINTFN(11, "\n"); 333 334 if (uaa->usb_mode != USB_MODE_HOST) { 335 return (ENXIO); 336 } 337 if (uaa->info.bConfigIndex != USLCOM_CONFIG_INDEX) { 338 return (ENXIO); 339 } 340 if (uaa->info.bIfaceIndex != USLCOM_IFACE_INDEX) { 341 return (ENXIO); 342 } 343 return (usbd_lookup_id_by_uaa(uslcom_devs, sizeof(uslcom_devs), uaa)); 344 } 345 346 static int 347 uslcom_attach(device_t dev) 348 { 349 struct usb_attach_arg *uaa = device_get_ivars(dev); 350 struct uslcom_softc *sc = device_get_softc(dev); 351 int error; 352 353 DPRINTFN(11, "\n"); 354 355 device_set_usb_desc(dev); 356 lockinit(&sc->sc_lock, "uslcom", 0, LK_CANRECURSE); 357 usb_callout_init_mtx(&sc->sc_watchdog, &sc->sc_lock, 0); 358 359 sc->sc_udev = uaa->device; 360 361 error = usbd_transfer_setup(uaa->device, 362 &uaa->info.bIfaceIndex, sc->sc_xfer, uslcom_config, 363 USLCOM_N_TRANSFER, sc, &sc->sc_lock); 364 if (error) { 365 DPRINTF("one or more missing USB endpoints, " 366 "error=%s\n", usbd_errstr(error)); 367 goto detach; 368 } 369 /* clear stall at first run */ 370 lockmgr(&sc->sc_lock, LK_EXCLUSIVE); 371 usbd_xfer_set_stall(sc->sc_xfer[USLCOM_BULK_DT_WR]); 372 usbd_xfer_set_stall(sc->sc_xfer[USLCOM_BULK_DT_RD]); 373 lockmgr(&sc->sc_lock, LK_RELEASE); 374 375 error = ucom_attach(&sc->sc_super_ucom, &sc->sc_ucom, 1, sc, 376 &uslcom_callback, &sc->sc_lock); 377 if (error) { 378 goto detach; 379 } 380 ucom_set_pnpinfo_usb(&sc->sc_super_ucom, dev); 381 382 return (0); 383 384 detach: 385 uslcom_detach(dev); 386 return (ENXIO); 387 } 388 389 static int 390 uslcom_detach(device_t dev) 391 { 392 struct uslcom_softc *sc = device_get_softc(dev); 393 394 DPRINTF("sc=%p\n", sc); 395 396 ucom_detach(&sc->sc_super_ucom, &sc->sc_ucom); 397 usbd_transfer_unsetup(sc->sc_xfer, USLCOM_N_TRANSFER); 398 399 usb_callout_drain(&sc->sc_watchdog); 400 lockuninit(&sc->sc_lock); 401 402 return (0); 403 } 404 405 static void 406 uslcom_open(struct ucom_softc *ucom) 407 { 408 struct uslcom_softc *sc = ucom->sc_parent; 409 struct usb_device_request req; 410 411 req.bmRequestType = USLCOM_WRITE; 412 req.bRequest = USLCOM_UART; 413 USETW(req.wValue, USLCOM_UART_ENABLE); 414 USETW(req.wIndex, USLCOM_PORT_NO); 415 USETW(req.wLength, 0); 416 417 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 418 &req, NULL, 0, 1000)) { 419 DPRINTF("UART enable failed (ignored)\n"); 420 } 421 422 /* start polling status */ 423 uslcom_watchdog(sc); 424 } 425 426 static void 427 uslcom_close(struct ucom_softc *ucom) 428 { 429 struct uslcom_softc *sc = ucom->sc_parent; 430 struct usb_device_request req; 431 432 /* stop polling status */ 433 usb_callout_stop(&sc->sc_watchdog); 434 435 req.bmRequestType = USLCOM_WRITE; 436 req.bRequest = USLCOM_UART; 437 USETW(req.wValue, USLCOM_UART_DISABLE); 438 USETW(req.wIndex, USLCOM_PORT_NO); 439 USETW(req.wLength, 0); 440 441 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 442 &req, NULL, 0, 1000)) { 443 DPRINTF("UART disable failed (ignored)\n"); 444 } 445 } 446 447 static void 448 uslcom_set_dtr(struct ucom_softc *ucom, uint8_t onoff) 449 { 450 struct uslcom_softc *sc = ucom->sc_parent; 451 struct usb_device_request req; 452 uint16_t ctl; 453 454 DPRINTF("onoff = %d\n", onoff); 455 456 ctl = onoff ? USLCOM_CTRL_DTR_ON : 0; 457 ctl |= USLCOM_CTRL_DTR_SET; 458 459 req.bmRequestType = USLCOM_WRITE; 460 req.bRequest = USLCOM_CTRL; 461 USETW(req.wValue, ctl); 462 USETW(req.wIndex, USLCOM_PORT_NO); 463 USETW(req.wLength, 0); 464 465 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 466 &req, NULL, 0, 1000)) { 467 DPRINTF("Setting DTR failed (ignored)\n"); 468 } 469 } 470 471 static void 472 uslcom_set_rts(struct ucom_softc *ucom, uint8_t onoff) 473 { 474 struct uslcom_softc *sc = ucom->sc_parent; 475 struct usb_device_request req; 476 uint16_t ctl; 477 478 DPRINTF("onoff = %d\n", onoff); 479 480 ctl = onoff ? USLCOM_CTRL_RTS_ON : 0; 481 ctl |= USLCOM_CTRL_RTS_SET; 482 483 req.bmRequestType = USLCOM_WRITE; 484 req.bRequest = USLCOM_CTRL; 485 USETW(req.wValue, ctl); 486 USETW(req.wIndex, USLCOM_PORT_NO); 487 USETW(req.wLength, 0); 488 489 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 490 &req, NULL, 0, 1000)) { 491 DPRINTF("Setting DTR failed (ignored)\n"); 492 } 493 } 494 495 static int 496 uslcom_pre_param(struct ucom_softc *ucom, struct termios *t) 497 { 498 if (t->c_ospeed <= 0 || t->c_ospeed > 921600) 499 return (EINVAL); 500 return (0); 501 } 502 503 static void 504 uslcom_param(struct ucom_softc *ucom, struct termios *t) 505 { 506 struct uslcom_softc *sc = ucom->sc_parent; 507 struct usb_device_request req; 508 uint32_t flowctrl[4]; 509 uint16_t data; 510 511 DPRINTF("\n"); 512 513 req.bmRequestType = USLCOM_WRITE; 514 req.bRequest = USLCOM_BAUD_RATE; 515 USETW(req.wValue, USLCOM_BAUD_REF / t->c_ospeed); 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("Set baudrate failed (ignored)\n"); 522 } 523 524 if (t->c_cflag & CSTOPB) 525 data = USLCOM_STOP_BITS_2; 526 else 527 data = USLCOM_STOP_BITS_1; 528 if (t->c_cflag & PARENB) { 529 if (t->c_cflag & PARODD) 530 data |= USLCOM_PARITY_ODD; 531 else 532 data |= USLCOM_PARITY_EVEN; 533 } else 534 data |= USLCOM_PARITY_NONE; 535 switch (t->c_cflag & CSIZE) { 536 case CS5: 537 data |= USLCOM_SET_DATA_BITS(5); 538 break; 539 case CS6: 540 data |= USLCOM_SET_DATA_BITS(6); 541 break; 542 case CS7: 543 data |= USLCOM_SET_DATA_BITS(7); 544 break; 545 case CS8: 546 data |= USLCOM_SET_DATA_BITS(8); 547 break; 548 } 549 550 req.bmRequestType = USLCOM_WRITE; 551 req.bRequest = USLCOM_DATA; 552 USETW(req.wValue, data); 553 USETW(req.wIndex, USLCOM_PORT_NO); 554 USETW(req.wLength, 0); 555 556 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 557 &req, NULL, 0, 1000)) { 558 DPRINTF("Set format failed (ignored)\n"); 559 } 560 561 if (t->c_cflag & CRTSCTS) { 562 flowctrl[0] = htole32(USLCOM_FLOW_DTR_ON | USLCOM_FLOW_CTS_HS); 563 flowctrl[1] = htole32(USLCOM_FLOW_RTS_HS); 564 flowctrl[2] = 0; 565 flowctrl[3] = 0; 566 } else { 567 flowctrl[0] = htole32(USLCOM_FLOW_DTR_ON); 568 flowctrl[1] = htole32(USLCOM_FLOW_RTS_ON); 569 flowctrl[2] = 0; 570 flowctrl[3] = 0; 571 } 572 req.bmRequestType = USLCOM_WRITE; 573 req.bRequest = USLCOM_SET_FLOWCTRL; 574 USETW(req.wValue, 0); 575 USETW(req.wIndex, USLCOM_PORT_NO); 576 USETW(req.wLength, sizeof(flowctrl)); 577 578 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 579 &req, flowctrl, 0, 1000)) { 580 DPRINTF("Set flowcontrol failed (ignored)\n"); 581 } 582 } 583 584 static void 585 uslcom_get_status(struct ucom_softc *ucom, uint8_t *lsr, uint8_t *msr) 586 { 587 struct uslcom_softc *sc = ucom->sc_parent; 588 589 DPRINTF("\n"); 590 591 *lsr = sc->sc_lsr; 592 *msr = sc->sc_msr; 593 } 594 595 static void 596 uslcom_set_break(struct ucom_softc *ucom, uint8_t onoff) 597 { 598 struct uslcom_softc *sc = ucom->sc_parent; 599 struct usb_device_request req; 600 uint16_t brk = onoff ? USLCOM_BREAK_ON : USLCOM_BREAK_OFF; 601 602 req.bmRequestType = USLCOM_WRITE; 603 req.bRequest = USLCOM_BREAK; 604 USETW(req.wValue, brk); 605 USETW(req.wIndex, USLCOM_PORT_NO); 606 USETW(req.wLength, 0); 607 608 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 609 &req, NULL, 0, 1000)) { 610 DPRINTF("Set BREAK failed (ignored)\n"); 611 } 612 } 613 614 static int 615 uslcom_ioctl(struct ucom_softc *ucom, uint32_t cmd, caddr_t data, 616 int flag, struct thread *td) 617 { 618 struct uslcom_softc *sc = ucom->sc_parent; 619 struct usb_device_request req; 620 int error = 0; 621 uint8_t latch; 622 623 DPRINTF("cmd=0x%08x\n", cmd); 624 625 switch (cmd) { 626 case USB_GET_GPIO: 627 req.bmRequestType = USLCOM_READ; 628 req.bRequest = USLCOM_VENDOR_SPECIFIC; 629 USETW(req.wValue, USLCOM_READ_LATCH); 630 USETW(req.wIndex, 0); 631 USETW(req.wLength, sizeof(latch)); 632 633 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 634 &req, &latch, 0, 1000)) { 635 DPRINTF("Get LATCH failed\n"); 636 error = EIO; 637 } 638 *(int *)data = latch; 639 break; 640 641 case USB_SET_GPIO: 642 req.bmRequestType = USLCOM_WRITE; 643 req.bRequest = USLCOM_VENDOR_SPECIFIC; 644 USETW(req.wValue, USLCOM_WRITE_LATCH); 645 USETW(req.wIndex, (*(int *)data)); 646 USETW(req.wLength, 0); 647 648 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 649 &req, NULL, 0, 1000)) { 650 DPRINTF("Set LATCH failed\n"); 651 error = EIO; 652 } 653 break; 654 655 default: 656 DPRINTF("Unknown IOCTL\n"); 657 error = ENOIOCTL; 658 break; 659 } 660 return (error); 661 } 662 663 static void 664 uslcom_write_callback(struct usb_xfer *xfer, usb_error_t error) 665 { 666 struct uslcom_softc *sc = usbd_xfer_softc(xfer); 667 struct usb_page_cache *pc; 668 uint32_t actlen; 669 670 switch (USB_GET_STATE(xfer)) { 671 case USB_ST_SETUP: 672 case USB_ST_TRANSFERRED: 673 tr_setup: 674 pc = usbd_xfer_get_frame(xfer, 0); 675 if (ucom_get_data(&sc->sc_ucom, pc, 0, 676 USLCOM_BULK_BUF_SIZE, &actlen)) { 677 678 DPRINTF("actlen = %d\n", actlen); 679 680 usbd_xfer_set_frame_len(xfer, 0, actlen); 681 usbd_transfer_submit(xfer); 682 } 683 return; 684 685 default: /* Error */ 686 if (error != USB_ERR_CANCELLED) { 687 /* try to clear stall first */ 688 usbd_xfer_set_stall(xfer); 689 goto tr_setup; 690 } 691 return; 692 } 693 } 694 695 static void 696 uslcom_read_callback(struct usb_xfer *xfer, usb_error_t error) 697 { 698 struct uslcom_softc *sc = usbd_xfer_softc(xfer); 699 struct usb_page_cache *pc; 700 int actlen; 701 702 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 703 704 switch (USB_GET_STATE(xfer)) { 705 case USB_ST_TRANSFERRED: 706 pc = usbd_xfer_get_frame(xfer, 0); 707 ucom_put_data(&sc->sc_ucom, pc, 0, actlen); 708 709 case USB_ST_SETUP: 710 tr_setup: 711 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 712 usbd_transfer_submit(xfer); 713 return; 714 715 default: /* Error */ 716 if (error != USB_ERR_CANCELLED) { 717 /* try to clear stall first */ 718 usbd_xfer_set_stall(xfer); 719 goto tr_setup; 720 } 721 return; 722 } 723 } 724 725 static void 726 uslcom_control_callback(struct usb_xfer *xfer, usb_error_t error) 727 { 728 struct uslcom_softc *sc = usbd_xfer_softc(xfer); 729 struct usb_page_cache *pc; 730 struct usb_device_request req; 731 uint8_t msr = 0; 732 uint8_t buf; 733 734 switch (USB_GET_STATE(xfer)) { 735 case USB_ST_TRANSFERRED: 736 pc = usbd_xfer_get_frame(xfer, 1); 737 usbd_copy_out(pc, 0, &buf, sizeof(buf)); 738 if (buf & USLCOM_CTRL_CTS) 739 msr |= SER_CTS; 740 if (buf & USLCOM_CTRL_DSR) 741 msr |= SER_DSR; 742 if (buf & USLCOM_CTRL_RI) 743 msr |= SER_RI; 744 if (buf & USLCOM_CTRL_DCD) 745 msr |= SER_DCD; 746 747 if (msr != sc->sc_msr) { 748 DPRINTF("status change msr=0x%02x " 749 "(was 0x%02x)\n", msr, sc->sc_msr); 750 sc->sc_msr = msr; 751 ucom_status_change(&sc->sc_ucom); 752 } 753 break; 754 755 case USB_ST_SETUP: 756 req.bmRequestType = USLCOM_READ; 757 req.bRequest = USLCOM_RCTRL; 758 USETW(req.wValue, 0); 759 USETW(req.wIndex, USLCOM_PORT_NO); 760 USETW(req.wLength, sizeof(buf)); 761 762 usbd_xfer_set_frames(xfer, 2); 763 usbd_xfer_set_frame_len(xfer, 0, sizeof(req)); 764 usbd_xfer_set_frame_len(xfer, 1, sizeof(buf)); 765 766 pc = usbd_xfer_get_frame(xfer, 0); 767 usbd_copy_in(pc, 0, &req, sizeof(req)); 768 usbd_transfer_submit(xfer); 769 break; 770 771 default: /* error */ 772 if (error != USB_ERR_CANCELLED) 773 DPRINTF("error=%s\n", usbd_errstr(error)); 774 break; 775 } 776 } 777 778 static void 779 uslcom_start_read(struct ucom_softc *ucom) 780 { 781 struct uslcom_softc *sc = ucom->sc_parent; 782 783 /* start read endpoint */ 784 usbd_transfer_start(sc->sc_xfer[USLCOM_BULK_DT_RD]); 785 } 786 787 static void 788 uslcom_stop_read(struct ucom_softc *ucom) 789 { 790 struct uslcom_softc *sc = ucom->sc_parent; 791 792 /* stop read endpoint */ 793 usbd_transfer_stop(sc->sc_xfer[USLCOM_BULK_DT_RD]); 794 } 795 796 static void 797 uslcom_start_write(struct ucom_softc *ucom) 798 { 799 struct uslcom_softc *sc = ucom->sc_parent; 800 801 usbd_transfer_start(sc->sc_xfer[USLCOM_BULK_DT_WR]); 802 } 803 804 static void 805 uslcom_stop_write(struct ucom_softc *ucom) 806 { 807 struct uslcom_softc *sc = ucom->sc_parent; 808 809 usbd_transfer_stop(sc->sc_xfer[USLCOM_BULK_DT_WR]); 810 } 811 812 static void 813 uslcom_poll(struct ucom_softc *ucom) 814 { 815 struct uslcom_softc *sc = ucom->sc_parent; 816 usbd_transfer_poll(sc->sc_xfer, USLCOM_N_TRANSFER); 817 } 818