1 /* $OpenBSD: uslcom.c,v 1.17 2007/11/24 10:52:12 jsg Exp $ */ 2 3 #include <sys/cdefs.h> 4 __FBSDID("$FreeBSD$"); 5 6 /* 7 * Copyright (c) 2006 Jonathan Gray <jsg@openbsd.org> 8 * 9 * Permission to use, copy, modify, and distribute this software for any 10 * purpose with or without fee is hereby granted, provided that the above 11 * copyright notice and this permission notice appear in all copies. 12 * 13 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 14 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 15 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 16 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 17 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 18 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 19 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 20 */ 21 22 /* 23 * Driver for Silicon Laboratories CP2101/CP2102/CP2103/CP2104/CP2105 24 * USB-Serial adapters. Based on datasheet AN571, publicly available from 25 * http://www.silabs.com/Support%20Documents/TechnicalDocs/AN571.pdf 26 */ 27 28 #include <sys/stdint.h> 29 #include <sys/stddef.h> 30 #include <sys/param.h> 31 #include <sys/queue.h> 32 #include <sys/types.h> 33 #include <sys/systm.h> 34 #include <sys/kernel.h> 35 #include <sys/bus.h> 36 #include <sys/module.h> 37 #include <sys/lock.h> 38 #include <sys/mutex.h> 39 #include <sys/condvar.h> 40 #include <sys/sysctl.h> 41 #include <sys/sx.h> 42 #include <sys/unistd.h> 43 #include <sys/callout.h> 44 #include <sys/malloc.h> 45 #include <sys/priv.h> 46 47 #include <dev/usb/usb.h> 48 #include <dev/usb/usbdi.h> 49 #include <dev/usb/usbdi_util.h> 50 #include <dev/usb/usb_ioctl.h> 51 #include "usbdevs.h" 52 53 #define USB_DEBUG_VAR uslcom_debug 54 #include <dev/usb/usb_debug.h> 55 #include <dev/usb/usb_process.h> 56 57 #include <dev/usb/serial/usb_serial.h> 58 59 #ifdef USB_DEBUG 60 static int uslcom_debug = 0; 61 62 static SYSCTL_NODE(_hw_usb, OID_AUTO, uslcom, CTLFLAG_RW, 0, "USB uslcom"); 63 SYSCTL_INT(_hw_usb_uslcom, OID_AUTO, debug, CTLFLAG_RW, 64 &uslcom_debug, 0, "Debug level"); 65 #endif 66 67 #define USLCOM_BULK_BUF_SIZE 1024 68 #define USLCOM_CONFIG_INDEX 0 69 70 /* Request types */ 71 #define USLCOM_WRITE 0x41 72 #define USLCOM_READ 0xc1 73 74 /* Request codes */ 75 #define USLCOM_IFC_ENABLE 0x00 76 #define USLCOM_SET_BAUDDIV 0x01 77 #define USLCOM_SET_LINE_CTL 0x03 78 #define USLCOM_SET_BREAK 0x05 79 #define USLCOM_SET_MHS 0x07 80 #define USLCOM_GET_MDMSTS 0x08 81 #define USLCOM_SET_FLOW 0x13 82 #define USLCOM_SET_BAUDRATE 0x1e 83 #define USLCOM_VENDOR_SPECIFIC 0xff 84 85 /* USLCOM_IFC_ENABLE values */ 86 #define USLCOM_IFC_ENABLE_DIS 0x00 87 #define USLCOM_IFC_ENABLE_EN 0x01 88 89 /* USLCOM_SET_MHS/USLCOM_GET_MDMSTS values */ 90 #define USLCOM_MHS_DTR_ON 0x0001 91 #define USLCOM_MHS_DTR_SET 0x0100 92 #define USLCOM_MHS_RTS_ON 0x0002 93 #define USLCOM_MHS_RTS_SET 0x0200 94 #define USLCOM_MHS_CTS 0x0010 95 #define USLCOM_MHS_DSR 0x0020 96 #define USLCOM_MHS_RI 0x0040 97 #define USLCOM_MHS_DCD 0x0080 98 99 /* USLCOM_SET_BAUDDIV values */ 100 #define USLCOM_BAUDDIV_REF 3686400 /* 3.6864 MHz */ 101 102 /* USLCOM_SET_LINE_CTL values */ 103 #define USLCOM_STOP_BITS_1 0x00 104 #define USLCOM_STOP_BITS_2 0x02 105 #define USLCOM_PARITY_NONE 0x00 106 #define USLCOM_PARITY_ODD 0x10 107 #define USLCOM_PARITY_EVEN 0x20 108 #define USLCOM_SET_DATA_BITS(x) ((x) << 8) 109 110 /* USLCOM_SET_BREAK values */ 111 #define USLCOM_SET_BREAK_OFF 0x00 112 #define USLCOM_SET_BREAK_ON 0x01 113 114 /* USLCOM_SET_FLOW values - 1st word */ 115 #define USLCOM_FLOW_DTR_ON 0x00000001 /* DTR static active */ 116 #define USLCOM_FLOW_CTS_HS 0x00000008 /* CTS handshake */ 117 /* USLCOM_SET_FLOW values - 2nd word */ 118 #define USLCOM_FLOW_RTS_ON 0x00000040 /* RTS static active */ 119 #define USLCOM_FLOW_RTS_HS 0x00000080 /* RTS handshake */ 120 121 /* USLCOM_VENDOR_SPECIFIC values */ 122 #define USLCOM_GET_PARTNUM 0x370B 123 #define USLCOM_WRITE_LATCH 0x37E1 124 #define USLCOM_READ_LATCH 0x00C2 125 126 /* USLCOM_GET_PARTNUM values from hardware */ 127 #define USLCOM_PARTNUM_CP2101 1 128 #define USLCOM_PARTNUM_CP2102 2 129 #define USLCOM_PARTNUM_CP2103 3 130 #define USLCOM_PARTNUM_CP2104 4 131 #define USLCOM_PARTNUM_CP2105 5 132 133 enum { 134 USLCOM_BULK_DT_WR, 135 USLCOM_BULK_DT_RD, 136 USLCOM_CTRL_DT_RD, 137 USLCOM_N_TRANSFER, 138 }; 139 140 struct uslcom_softc { 141 struct ucom_super_softc sc_super_ucom; 142 struct ucom_softc sc_ucom; 143 struct usb_callout sc_watchdog; 144 145 struct usb_xfer *sc_xfer[USLCOM_N_TRANSFER]; 146 struct usb_device *sc_udev; 147 struct mtx sc_mtx; 148 149 uint8_t sc_msr; 150 uint8_t sc_lsr; 151 uint8_t sc_iface_no; 152 uint8_t sc_partnum; 153 }; 154 155 static device_probe_t uslcom_probe; 156 static device_attach_t uslcom_attach; 157 static device_detach_t uslcom_detach; 158 static void uslcom_free_softc(struct uslcom_softc *); 159 160 static usb_callback_t uslcom_write_callback; 161 static usb_callback_t uslcom_read_callback; 162 static usb_callback_t uslcom_control_callback; 163 164 static void uslcom_free(struct ucom_softc *); 165 static void uslcom_open(struct ucom_softc *); 166 static void uslcom_close(struct ucom_softc *); 167 static uint8_t uslcom_get_partnum(struct uslcom_softc *); 168 static void uslcom_set_dtr(struct ucom_softc *, uint8_t); 169 static void uslcom_set_rts(struct ucom_softc *, uint8_t); 170 static void uslcom_set_break(struct ucom_softc *, uint8_t); 171 static int uslcom_ioctl(struct ucom_softc *, uint32_t, caddr_t, int, 172 struct thread *); 173 static int uslcom_pre_param(struct ucom_softc *, struct termios *); 174 static void uslcom_param(struct ucom_softc *, struct termios *); 175 static void uslcom_get_status(struct ucom_softc *, uint8_t *, uint8_t *); 176 static void uslcom_start_read(struct ucom_softc *); 177 static void uslcom_stop_read(struct ucom_softc *); 178 static void uslcom_start_write(struct ucom_softc *); 179 static void uslcom_stop_write(struct ucom_softc *); 180 static void uslcom_poll(struct ucom_softc *ucom); 181 182 static const struct usb_config uslcom_config[USLCOM_N_TRANSFER] = { 183 184 [USLCOM_BULK_DT_WR] = { 185 .type = UE_BULK, 186 .endpoint = UE_ADDR_ANY, 187 .direction = UE_DIR_OUT, 188 .bufsize = USLCOM_BULK_BUF_SIZE, 189 .flags = {.pipe_bof = 1,}, 190 .callback = &uslcom_write_callback, 191 }, 192 193 [USLCOM_BULK_DT_RD] = { 194 .type = UE_BULK, 195 .endpoint = UE_ADDR_ANY, 196 .direction = UE_DIR_IN, 197 .bufsize = USLCOM_BULK_BUF_SIZE, 198 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 199 .callback = &uslcom_read_callback, 200 }, 201 [USLCOM_CTRL_DT_RD] = { 202 .type = UE_CONTROL, 203 .endpoint = 0x00, 204 .direction = UE_DIR_ANY, 205 .bufsize = sizeof(struct usb_device_request) + 8, 206 .flags = {.pipe_bof = 1,}, 207 .callback = &uslcom_control_callback, 208 .timeout = 1000, /* 1 second timeout */ 209 }, 210 }; 211 212 static struct ucom_callback uslcom_callback = { 213 .ucom_cfg_open = &uslcom_open, 214 .ucom_cfg_close = &uslcom_close, 215 .ucom_cfg_get_status = &uslcom_get_status, 216 .ucom_cfg_set_dtr = &uslcom_set_dtr, 217 .ucom_cfg_set_rts = &uslcom_set_rts, 218 .ucom_cfg_set_break = &uslcom_set_break, 219 .ucom_ioctl = &uslcom_ioctl, 220 .ucom_cfg_param = &uslcom_param, 221 .ucom_pre_param = &uslcom_pre_param, 222 .ucom_start_read = &uslcom_start_read, 223 .ucom_stop_read = &uslcom_stop_read, 224 .ucom_start_write = &uslcom_start_write, 225 .ucom_stop_write = &uslcom_stop_write, 226 .ucom_poll = &uslcom_poll, 227 .ucom_free = &uslcom_free, 228 }; 229 230 static const STRUCT_USB_HOST_ID uslcom_devs[] = { 231 #define USLCOM_DEV(v,p) { USB_VP(USB_VENDOR_##v, USB_PRODUCT_##v##_##p) } 232 USLCOM_DEV(BALTECH, CARDREADER), 233 USLCOM_DEV(CLIPSAL, 5000CT2), 234 USLCOM_DEV(CLIPSAL, 5500PACA), 235 USLCOM_DEV(CLIPSAL, 5500PCU), 236 USLCOM_DEV(CLIPSAL, 560884), 237 USLCOM_DEV(CLIPSAL, 5800PC), 238 USLCOM_DEV(CLIPSAL, C5000CT2), 239 USLCOM_DEV(CLIPSAL, L51xx), 240 USLCOM_DEV(DATAAPEX, MULTICOM), 241 USLCOM_DEV(DELL, DW700), 242 USLCOM_DEV(DIGIANSWER, ZIGBEE802154), 243 USLCOM_DEV(DYNASTREAM, ANTDEVBOARD), 244 USLCOM_DEV(DYNASTREAM, ANTDEVBOARD2), 245 USLCOM_DEV(DYNASTREAM, ANT2USB), 246 USLCOM_DEV(ELV, USBI2C), 247 USLCOM_DEV(FESTO, CMSP), 248 USLCOM_DEV(FESTO, CPX_USB), 249 USLCOM_DEV(FOXCONN, PIRELLI_DP_L10), 250 USLCOM_DEV(FOXCONN, TCOM_TC_300), 251 USLCOM_DEV(GEMALTO, PROXPU), 252 USLCOM_DEV(JABLOTRON, PC60B), 253 USLCOM_DEV(KAMSTRUP, OPTICALEYE), 254 USLCOM_DEV(KAMSTRUP, MBUS_250D), 255 USLCOM_DEV(LINKINSTRUMENTS, MSO19), 256 USLCOM_DEV(LINKINSTRUMENTS, MSO28), 257 USLCOM_DEV(LINKINSTRUMENTS, MSO28_2), 258 USLCOM_DEV(MEI, CASHFLOW_SC), 259 USLCOM_DEV(MEI, S2000), 260 USLCOM_DEV(OWEN, AC4), 261 USLCOM_DEV(PHILIPS, ACE1001), 262 USLCOM_DEV(PLX, CA42), 263 USLCOM_DEV(RENESAS, RX610), 264 USLCOM_DEV(SILABS, AC_SERV_CAN), 265 USLCOM_DEV(SILABS, AC_SERV_CIS), 266 USLCOM_DEV(SILABS, AC_SERV_IBUS), 267 USLCOM_DEV(SILABS, AC_SERV_OBD), 268 USLCOM_DEV(SILABS, AEROCOMM), 269 USLCOM_DEV(SILABS, AMBER_AMB2560), 270 USLCOM_DEV(SILABS, ARGUSISP), 271 USLCOM_DEV(SILABS, ARKHAM_DS101_A), 272 USLCOM_DEV(SILABS, ARKHAM_DS101_M), 273 USLCOM_DEV(SILABS, ARYGON_MIFARE), 274 USLCOM_DEV(SILABS, AVIT_USB_TTL), 275 USLCOM_DEV(SILABS, B_G_H3000), 276 USLCOM_DEV(SILABS, BALLUFF_RFID), 277 USLCOM_DEV(SILABS, BEI_VCP), 278 USLCOM_DEV(SILABS, BSM7DUSB), 279 USLCOM_DEV(SILABS, BURNSIDE), 280 USLCOM_DEV(SILABS, C2_EDGE_MODEM), 281 USLCOM_DEV(SILABS, CP2102), 282 USLCOM_DEV(SILABS, CP210X_2), 283 USLCOM_DEV(SILABS, CP210X_3), 284 USLCOM_DEV(SILABS, CP210X_4), 285 USLCOM_DEV(SILABS, CRUMB128), 286 USLCOM_DEV(SILABS, CYGNAL), 287 USLCOM_DEV(SILABS, CYGNAL_DEBUG), 288 USLCOM_DEV(SILABS, CYGNAL_GPS), 289 USLCOM_DEV(SILABS, DEGREE), 290 USLCOM_DEV(SILABS, DEKTEK_DTAPLUS), 291 USLCOM_DEV(SILABS, EMS_C1007), 292 USLCOM_DEV(SILABS, HAMLINKUSB), 293 USLCOM_DEV(SILABS, HELICOM), 294 USLCOM_DEV(SILABS, IMS_USB_RS422), 295 USLCOM_DEV(SILABS, INFINITY_MIC), 296 USLCOM_DEV(SILABS, INSYS_MODEM), 297 USLCOM_DEV(SILABS, IRZ_SG10), 298 USLCOM_DEV(SILABS, KYOCERA_GPS), 299 USLCOM_DEV(SILABS, LIPOWSKY_HARP), 300 USLCOM_DEV(SILABS, LIPOWSKY_JTAG), 301 USLCOM_DEV(SILABS, LIPOWSKY_LIN), 302 USLCOM_DEV(SILABS, MC35PU), 303 USLCOM_DEV(SILABS, MJS_TOSLINK), 304 USLCOM_DEV(SILABS, MSD_DASHHAWK), 305 USLCOM_DEV(SILABS, MULTIPLEX_RC), 306 USLCOM_DEV(SILABS, OPTRIS_MSPRO), 307 USLCOM_DEV(SILABS, POLOLU), 308 USLCOM_DEV(SILABS, PROCYON_AVS), 309 USLCOM_DEV(SILABS, SB_PARAMOUNT_ME), 310 USLCOM_DEV(SILABS, SUUNTO), 311 USLCOM_DEV(SILABS, TAMSMASTER), 312 USLCOM_DEV(SILABS, TELEGESIS_ETRX2), 313 USLCOM_DEV(SILABS, TRACIENT), 314 USLCOM_DEV(SILABS, TRAQMATE), 315 USLCOM_DEV(SILABS, USBCOUNT50), 316 USLCOM_DEV(SILABS, USBPULSE100), 317 USLCOM_DEV(SILABS, USBSCOPE50), 318 USLCOM_DEV(SILABS, USBWAVE12), 319 USLCOM_DEV(SILABS, VSTABI), 320 USLCOM_DEV(SILABS, WAVIT), 321 USLCOM_DEV(SILABS, WMRBATT), 322 USLCOM_DEV(SILABS, WMRRIGBLASTER), 323 USLCOM_DEV(SILABS, WMRRIGTALK), 324 USLCOM_DEV(SILABS, ZEPHYR_BIO), 325 USLCOM_DEV(SILABS2, DCU11CLONE), 326 USLCOM_DEV(SILABS3, GPRS_MODEM), 327 USLCOM_DEV(SILABS4, 100EU_MODEM), 328 USLCOM_DEV(SYNTECH, CYPHERLAB100), 329 USLCOM_DEV(USI, MC60), 330 USLCOM_DEV(VAISALA, CABLE), 331 USLCOM_DEV(WAGO, SERVICECABLE), 332 USLCOM_DEV(WAVESENSE, JAZZ), 333 USLCOM_DEV(WIENERPLEINBAUS, PL512), 334 USLCOM_DEV(WIENERPLEINBAUS, RCM), 335 USLCOM_DEV(WIENERPLEINBAUS, MPOD), 336 USLCOM_DEV(WIENERPLEINBAUS, CML), 337 #undef USLCOM_DEV 338 }; 339 340 static device_method_t uslcom_methods[] = { 341 DEVMETHOD(device_probe, uslcom_probe), 342 DEVMETHOD(device_attach, uslcom_attach), 343 DEVMETHOD(device_detach, uslcom_detach), 344 DEVMETHOD_END 345 }; 346 347 static devclass_t uslcom_devclass; 348 349 static driver_t uslcom_driver = { 350 .name = "uslcom", 351 .methods = uslcom_methods, 352 .size = sizeof(struct uslcom_softc), 353 }; 354 355 DRIVER_MODULE(uslcom, uhub, uslcom_driver, uslcom_devclass, NULL, 0); 356 MODULE_DEPEND(uslcom, ucom, 1, 1, 1); 357 MODULE_DEPEND(uslcom, usb, 1, 1, 1); 358 MODULE_VERSION(uslcom, 1); 359 360 static void 361 uslcom_watchdog(void *arg) 362 { 363 struct uslcom_softc *sc = arg; 364 365 mtx_assert(&sc->sc_mtx, MA_OWNED); 366 367 usbd_transfer_start(sc->sc_xfer[USLCOM_CTRL_DT_RD]); 368 369 usb_callout_reset(&sc->sc_watchdog, 370 hz / 4, &uslcom_watchdog, sc); 371 } 372 373 static int 374 uslcom_probe(device_t dev) 375 { 376 struct usb_attach_arg *uaa = device_get_ivars(dev); 377 378 DPRINTFN(11, "\n"); 379 380 if (uaa->usb_mode != USB_MODE_HOST) { 381 return (ENXIO); 382 } 383 if (uaa->info.bConfigIndex != USLCOM_CONFIG_INDEX) { 384 return (ENXIO); 385 } 386 return (usbd_lookup_id_by_uaa(uslcom_devs, sizeof(uslcom_devs), uaa)); 387 } 388 389 static int 390 uslcom_attach(device_t dev) 391 { 392 struct usb_attach_arg *uaa = device_get_ivars(dev); 393 struct uslcom_softc *sc = device_get_softc(dev); 394 int error; 395 396 DPRINTFN(11, "\n"); 397 398 device_set_usb_desc(dev); 399 mtx_init(&sc->sc_mtx, "uslcom", NULL, MTX_DEF); 400 ucom_ref(&sc->sc_super_ucom); 401 usb_callout_init_mtx(&sc->sc_watchdog, &sc->sc_mtx, 0); 402 403 sc->sc_udev = uaa->device; 404 /* use the interface number from the USB interface descriptor */ 405 sc->sc_iface_no = uaa->info.bIfaceNum; 406 407 error = usbd_transfer_setup(uaa->device, 408 &uaa->info.bIfaceIndex, sc->sc_xfer, uslcom_config, 409 USLCOM_N_TRANSFER, sc, &sc->sc_mtx); 410 if (error) { 411 DPRINTF("one or more missing USB endpoints, " 412 "error=%s\n", usbd_errstr(error)); 413 goto detach; 414 } 415 /* clear stall at first run */ 416 mtx_lock(&sc->sc_mtx); 417 usbd_xfer_set_stall(sc->sc_xfer[USLCOM_BULK_DT_WR]); 418 usbd_xfer_set_stall(sc->sc_xfer[USLCOM_BULK_DT_RD]); 419 mtx_unlock(&sc->sc_mtx); 420 421 sc->sc_partnum = uslcom_get_partnum(sc); 422 423 error = ucom_attach(&sc->sc_super_ucom, &sc->sc_ucom, 1, sc, 424 &uslcom_callback, &sc->sc_mtx); 425 if (error) { 426 goto detach; 427 } 428 ucom_set_pnpinfo_usb(&sc->sc_super_ucom, dev); 429 430 return (0); 431 432 detach: 433 uslcom_detach(dev); 434 return (ENXIO); 435 } 436 437 static int 438 uslcom_detach(device_t dev) 439 { 440 struct uslcom_softc *sc = device_get_softc(dev); 441 442 DPRINTF("sc=%p\n", sc); 443 444 ucom_detach(&sc->sc_super_ucom, &sc->sc_ucom); 445 usbd_transfer_unsetup(sc->sc_xfer, USLCOM_N_TRANSFER); 446 447 usb_callout_drain(&sc->sc_watchdog); 448 449 device_claim_softc(dev); 450 451 uslcom_free_softc(sc); 452 453 return (0); 454 } 455 456 UCOM_UNLOAD_DRAIN(uslcom); 457 458 static void 459 uslcom_free_softc(struct uslcom_softc *sc) 460 { 461 if (ucom_unref(&sc->sc_super_ucom)) { 462 mtx_destroy(&sc->sc_mtx); 463 device_free_softc(sc); 464 } 465 } 466 467 static void 468 uslcom_free(struct ucom_softc *ucom) 469 { 470 uslcom_free_softc(ucom->sc_parent); 471 } 472 473 static void 474 uslcom_open(struct ucom_softc *ucom) 475 { 476 struct uslcom_softc *sc = ucom->sc_parent; 477 struct usb_device_request req; 478 479 req.bmRequestType = USLCOM_WRITE; 480 req.bRequest = USLCOM_IFC_ENABLE; 481 USETW(req.wValue, USLCOM_IFC_ENABLE_EN); 482 USETW(req.wIndex, sc->sc_iface_no); 483 USETW(req.wLength, 0); 484 485 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 486 &req, NULL, 0, 1000)) { 487 DPRINTF("UART enable failed (ignored)\n"); 488 } 489 490 /* start polling status */ 491 uslcom_watchdog(sc); 492 } 493 494 static void 495 uslcom_close(struct ucom_softc *ucom) 496 { 497 struct uslcom_softc *sc = ucom->sc_parent; 498 struct usb_device_request req; 499 500 /* stop polling status */ 501 usb_callout_stop(&sc->sc_watchdog); 502 503 req.bmRequestType = USLCOM_WRITE; 504 req.bRequest = USLCOM_IFC_ENABLE; 505 USETW(req.wValue, USLCOM_IFC_ENABLE_DIS); 506 USETW(req.wIndex, sc->sc_iface_no); 507 USETW(req.wLength, 0); 508 509 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 510 &req, NULL, 0, 1000)) { 511 DPRINTF("UART disable failed (ignored)\n"); 512 } 513 } 514 515 static uint8_t 516 uslcom_get_partnum(struct uslcom_softc *sc) 517 { 518 struct usb_device_request req; 519 uint8_t partnum; 520 521 /* Find specific chip type */ 522 partnum = 0; 523 req.bmRequestType = USLCOM_READ; 524 req.bRequest = USLCOM_VENDOR_SPECIFIC; 525 USETW(req.wValue, USLCOM_GET_PARTNUM); 526 USETW(req.wIndex, sc->sc_iface_no); 527 USETW(req.wLength, sizeof(partnum)); 528 529 if (usbd_do_request_flags(sc->sc_udev, NULL, 530 &req, &partnum, 0, NULL, 1000)) { 531 DPRINTF("GET_PARTNUM failed\n"); 532 } 533 534 return(partnum); 535 } 536 537 static void 538 uslcom_set_dtr(struct ucom_softc *ucom, uint8_t onoff) 539 { 540 struct uslcom_softc *sc = ucom->sc_parent; 541 struct usb_device_request req; 542 uint16_t ctl; 543 544 DPRINTF("onoff = %d\n", onoff); 545 546 ctl = onoff ? USLCOM_MHS_DTR_ON : 0; 547 ctl |= USLCOM_MHS_DTR_SET; 548 549 req.bmRequestType = USLCOM_WRITE; 550 req.bRequest = USLCOM_SET_MHS; 551 USETW(req.wValue, ctl); 552 USETW(req.wIndex, sc->sc_iface_no); 553 USETW(req.wLength, 0); 554 555 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 556 &req, NULL, 0, 1000)) { 557 DPRINTF("Setting DTR failed (ignored)\n"); 558 } 559 } 560 561 static void 562 uslcom_set_rts(struct ucom_softc *ucom, uint8_t onoff) 563 { 564 struct uslcom_softc *sc = ucom->sc_parent; 565 struct usb_device_request req; 566 uint16_t ctl; 567 568 DPRINTF("onoff = %d\n", onoff); 569 570 ctl = onoff ? USLCOM_MHS_RTS_ON : 0; 571 ctl |= USLCOM_MHS_RTS_SET; 572 573 req.bmRequestType = USLCOM_WRITE; 574 req.bRequest = USLCOM_SET_MHS; 575 USETW(req.wValue, ctl); 576 USETW(req.wIndex, sc->sc_iface_no); 577 USETW(req.wLength, 0); 578 579 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 580 &req, NULL, 0, 1000)) { 581 DPRINTF("Setting DTR failed (ignored)\n"); 582 } 583 } 584 585 static int 586 uslcom_pre_param(struct ucom_softc *ucom, struct termios *t) 587 { 588 if (t->c_ospeed <= 0 || t->c_ospeed > 921600) 589 return (EINVAL); 590 return (0); 591 } 592 593 static void 594 uslcom_param(struct ucom_softc *ucom, struct termios *t) 595 { 596 struct uslcom_softc *sc = ucom->sc_parent; 597 struct usb_device_request req; 598 uint32_t baudrate, flowctrl[4]; 599 uint16_t data; 600 601 DPRINTF("\n"); 602 603 baudrate = t->c_ospeed; 604 req.bmRequestType = USLCOM_WRITE; 605 req.bRequest = USLCOM_SET_BAUDRATE; 606 USETW(req.wValue, 0); 607 USETW(req.wIndex, sc->sc_iface_no); 608 USETW(req.wLength, sizeof(baudrate)); 609 610 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 611 &req, &baudrate, 0, 1000)) { 612 DPRINTF("Set baudrate failed (ignored)\n"); 613 } 614 615 if (t->c_cflag & CSTOPB) 616 data = USLCOM_STOP_BITS_2; 617 else 618 data = USLCOM_STOP_BITS_1; 619 if (t->c_cflag & PARENB) { 620 if (t->c_cflag & PARODD) 621 data |= USLCOM_PARITY_ODD; 622 else 623 data |= USLCOM_PARITY_EVEN; 624 } else 625 data |= USLCOM_PARITY_NONE; 626 switch (t->c_cflag & CSIZE) { 627 case CS5: 628 data |= USLCOM_SET_DATA_BITS(5); 629 break; 630 case CS6: 631 data |= USLCOM_SET_DATA_BITS(6); 632 break; 633 case CS7: 634 data |= USLCOM_SET_DATA_BITS(7); 635 break; 636 case CS8: 637 data |= USLCOM_SET_DATA_BITS(8); 638 break; 639 } 640 641 req.bmRequestType = USLCOM_WRITE; 642 req.bRequest = USLCOM_SET_LINE_CTL; 643 USETW(req.wValue, data); 644 USETW(req.wIndex, sc->sc_iface_no); 645 USETW(req.wLength, 0); 646 647 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 648 &req, NULL, 0, 1000)) { 649 DPRINTF("Set format failed (ignored)\n"); 650 } 651 652 if (t->c_cflag & CRTSCTS) { 653 flowctrl[0] = htole32(USLCOM_FLOW_DTR_ON | USLCOM_FLOW_CTS_HS); 654 flowctrl[1] = htole32(USLCOM_FLOW_RTS_HS); 655 } else { 656 flowctrl[0] = htole32(USLCOM_FLOW_DTR_ON); 657 flowctrl[1] = htole32(USLCOM_FLOW_RTS_ON); 658 } 659 flowctrl[2] = 0; 660 flowctrl[3] = 0; 661 req.bmRequestType = USLCOM_WRITE; 662 req.bRequest = USLCOM_SET_FLOW; 663 USETW(req.wValue, 0); 664 USETW(req.wIndex, sc->sc_iface_no); 665 USETW(req.wLength, sizeof(flowctrl)); 666 667 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 668 &req, flowctrl, 0, 1000)) { 669 DPRINTF("Set flowcontrol failed (ignored)\n"); 670 } 671 } 672 673 static void 674 uslcom_get_status(struct ucom_softc *ucom, uint8_t *lsr, uint8_t *msr) 675 { 676 struct uslcom_softc *sc = ucom->sc_parent; 677 678 DPRINTF("\n"); 679 680 *lsr = sc->sc_lsr; 681 *msr = sc->sc_msr; 682 } 683 684 static void 685 uslcom_set_break(struct ucom_softc *ucom, uint8_t onoff) 686 { 687 struct uslcom_softc *sc = ucom->sc_parent; 688 struct usb_device_request req; 689 uint16_t brk = onoff ? USLCOM_SET_BREAK_ON : USLCOM_SET_BREAK_OFF; 690 691 req.bmRequestType = USLCOM_WRITE; 692 req.bRequest = USLCOM_SET_BREAK; 693 USETW(req.wValue, brk); 694 USETW(req.wIndex, sc->sc_iface_no); 695 USETW(req.wLength, 0); 696 697 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 698 &req, NULL, 0, 1000)) { 699 DPRINTF("Set BREAK failed (ignored)\n"); 700 } 701 } 702 703 static int 704 uslcom_ioctl(struct ucom_softc *ucom, uint32_t cmd, caddr_t data, 705 int flag, struct thread *td) 706 { 707 struct uslcom_softc *sc = ucom->sc_parent; 708 struct usb_device_request req; 709 int error = 0; 710 uint8_t latch; 711 712 DPRINTF("cmd=0x%08x\n", cmd); 713 714 switch (cmd) { 715 case USB_GET_GPIO: 716 if (sc->sc_partnum < USLCOM_PARTNUM_CP2103) { 717 error = ENODEV; 718 break; 719 } 720 req.bmRequestType = USLCOM_READ; 721 req.bRequest = USLCOM_VENDOR_SPECIFIC; 722 USETW(req.wValue, USLCOM_READ_LATCH); 723 USETW(req.wIndex, sc->sc_iface_no); 724 USETW(req.wLength, sizeof(latch)); 725 726 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 727 &req, &latch, 0, 1000)) { 728 DPRINTF("Get LATCH failed\n"); 729 error = EIO; 730 } 731 *(int *)data = latch; 732 break; 733 734 case USB_SET_GPIO: 735 if (sc->sc_partnum < USLCOM_PARTNUM_CP2103) 736 error = ENODEV; 737 else if ((sc->sc_partnum == USLCOM_PARTNUM_CP2103) || 738 (sc->sc_partnum == USLCOM_PARTNUM_CP2104)) { 739 req.bmRequestType = USLCOM_WRITE; 740 req.bRequest = USLCOM_VENDOR_SPECIFIC; 741 USETW(req.wValue, USLCOM_WRITE_LATCH); 742 USETW(req.wIndex, (*(int *)data)); 743 USETW(req.wLength, 0); 744 745 if (ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 746 &req, NULL, 0, 1000)) { 747 DPRINTF("Set LATCH failed\n"); 748 error = EIO; 749 } 750 } else 751 error = ENODEV; /* Not yet */ 752 break; 753 754 default: 755 DPRINTF("Unknown IOCTL\n"); 756 error = ENOIOCTL; 757 break; 758 } 759 return (error); 760 } 761 762 static void 763 uslcom_write_callback(struct usb_xfer *xfer, usb_error_t error) 764 { 765 struct uslcom_softc *sc = usbd_xfer_softc(xfer); 766 struct usb_page_cache *pc; 767 uint32_t actlen; 768 769 switch (USB_GET_STATE(xfer)) { 770 case USB_ST_SETUP: 771 case USB_ST_TRANSFERRED: 772 tr_setup: 773 pc = usbd_xfer_get_frame(xfer, 0); 774 if (ucom_get_data(&sc->sc_ucom, pc, 0, 775 USLCOM_BULK_BUF_SIZE, &actlen)) { 776 777 DPRINTF("actlen = %d\n", actlen); 778 779 usbd_xfer_set_frame_len(xfer, 0, actlen); 780 usbd_transfer_submit(xfer); 781 } 782 return; 783 784 default: /* Error */ 785 if (error != USB_ERR_CANCELLED) { 786 /* try to clear stall first */ 787 usbd_xfer_set_stall(xfer); 788 goto tr_setup; 789 } 790 return; 791 } 792 } 793 794 static void 795 uslcom_read_callback(struct usb_xfer *xfer, usb_error_t error) 796 { 797 struct uslcom_softc *sc = usbd_xfer_softc(xfer); 798 struct usb_page_cache *pc; 799 int actlen; 800 801 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 802 803 switch (USB_GET_STATE(xfer)) { 804 case USB_ST_TRANSFERRED: 805 pc = usbd_xfer_get_frame(xfer, 0); 806 ucom_put_data(&sc->sc_ucom, pc, 0, actlen); 807 808 case USB_ST_SETUP: 809 tr_setup: 810 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 811 usbd_transfer_submit(xfer); 812 return; 813 814 default: /* Error */ 815 if (error != USB_ERR_CANCELLED) { 816 /* try to clear stall first */ 817 usbd_xfer_set_stall(xfer); 818 goto tr_setup; 819 } 820 return; 821 } 822 } 823 824 static void 825 uslcom_control_callback(struct usb_xfer *xfer, usb_error_t error) 826 { 827 struct uslcom_softc *sc = usbd_xfer_softc(xfer); 828 struct usb_page_cache *pc; 829 struct usb_device_request req; 830 uint8_t msr = 0; 831 uint8_t buf; 832 833 switch (USB_GET_STATE(xfer)) { 834 case USB_ST_TRANSFERRED: 835 pc = usbd_xfer_get_frame(xfer, 1); 836 usbd_copy_out(pc, 0, &buf, sizeof(buf)); 837 if (buf & USLCOM_MHS_CTS) 838 msr |= SER_CTS; 839 if (buf & USLCOM_MHS_DSR) 840 msr |= SER_DSR; 841 if (buf & USLCOM_MHS_RI) 842 msr |= SER_RI; 843 if (buf & USLCOM_MHS_DCD) 844 msr |= SER_DCD; 845 846 if (msr != sc->sc_msr) { 847 DPRINTF("status change msr=0x%02x " 848 "(was 0x%02x)\n", msr, sc->sc_msr); 849 sc->sc_msr = msr; 850 ucom_status_change(&sc->sc_ucom); 851 } 852 break; 853 854 case USB_ST_SETUP: 855 req.bmRequestType = USLCOM_READ; 856 req.bRequest = USLCOM_GET_MDMSTS; 857 USETW(req.wValue, 0); 858 USETW(req.wIndex, sc->sc_iface_no); 859 USETW(req.wLength, sizeof(buf)); 860 861 usbd_xfer_set_frames(xfer, 2); 862 usbd_xfer_set_frame_len(xfer, 0, sizeof(req)); 863 usbd_xfer_set_frame_len(xfer, 1, sizeof(buf)); 864 865 pc = usbd_xfer_get_frame(xfer, 0); 866 usbd_copy_in(pc, 0, &req, sizeof(req)); 867 usbd_transfer_submit(xfer); 868 break; 869 870 default: /* error */ 871 if (error != USB_ERR_CANCELLED) 872 DPRINTF("error=%s\n", usbd_errstr(error)); 873 break; 874 } 875 } 876 877 static void 878 uslcom_start_read(struct ucom_softc *ucom) 879 { 880 struct uslcom_softc *sc = ucom->sc_parent; 881 882 /* start read endpoint */ 883 usbd_transfer_start(sc->sc_xfer[USLCOM_BULK_DT_RD]); 884 } 885 886 static void 887 uslcom_stop_read(struct ucom_softc *ucom) 888 { 889 struct uslcom_softc *sc = ucom->sc_parent; 890 891 /* stop read endpoint */ 892 usbd_transfer_stop(sc->sc_xfer[USLCOM_BULK_DT_RD]); 893 } 894 895 static void 896 uslcom_start_write(struct ucom_softc *ucom) 897 { 898 struct uslcom_softc *sc = ucom->sc_parent; 899 900 usbd_transfer_start(sc->sc_xfer[USLCOM_BULK_DT_WR]); 901 } 902 903 static void 904 uslcom_stop_write(struct ucom_softc *ucom) 905 { 906 struct uslcom_softc *sc = ucom->sc_parent; 907 908 usbd_transfer_stop(sc->sc_xfer[USLCOM_BULK_DT_WR]); 909 } 910 911 static void 912 uslcom_poll(struct ucom_softc *ucom) 913 { 914 struct uslcom_softc *sc = ucom->sc_parent; 915 usbd_transfer_poll(sc->sc_xfer, USLCOM_N_TRANSFER); 916 } 917