uslsa.c revision 1.4
1 /* $NetBSD: uslsa.c,v 1.4 2007/10/25 19:32:15 plunky Exp $ */ 2 3 /* 4 * Copyright (c) 2007 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jonathan A. Kollasch <jakllsch (at) kollasch.net>. Craig Shelley's Linux 9 * driver provided invaluable documentation. 10 * 11 * This code is derived from ugensa.c, software contributed to 12 * The NetBSD Foundation by Roland C. Dowdeswell <elric (at) netbsd.org>. 13 * 14 * Redistribution and use in source and binary forms, with or without 15 * modification, are permitted provided that the following conditions 16 * are met: 17 * 1. Redistributions of source code must retain the above copyright 18 * notice, this list of conditions and the following disclaimer. 19 * 2. Redistributions in binary form must reproduce the above copyright 20 * notice, this list of conditions and the following disclaimer in the 21 * documentation and/or other materials provided with the distribution. 22 * 3. All advertising materials mentioning features or use of this software 23 * must display the following acknowledgement: 24 * This product includes software developed by the NetBSD 25 * Foundation, Inc. and its contributors. 26 * 4. Neither the name of The NetBSD Foundation nor the names of its 27 * contributors may be used to endorse or promote products derived 28 * from this software without specific prior written permission. 29 * 30 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 31 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 32 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 33 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 34 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 35 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 36 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 37 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 38 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 39 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 40 * POSSIBILITY OF SUCH DAMAGE. 41 */ 42 43 #include <sys/cdefs.h> 44 __KERNEL_RCSID(0, "$NetBSD: uslsa.c,v 1.4 2007/10/25 19:32:15 plunky Exp $"); 45 46 #include <sys/param.h> 47 #include <sys/systm.h> 48 #include <sys/kernel.h> 49 #include <sys/device.h> 50 #include <sys/conf.h> 51 #include <sys/tty.h> 52 53 #include <dev/usb/usb.h> 54 55 #include <dev/usb/usbdi.h> 56 #include <dev/usb/usbdi_util.h> 57 #include <dev/usb/usbdevs.h> 58 59 #include <dev/usb/ucomvar.h> 60 61 #ifdef DEBUG 62 #define USLSA_DEBUG 63 #endif 64 65 #ifdef USLSA_DEBUG 66 #define DPRINTF(x) if (uslsadebug) printf x 67 #define DPRINTFN(n,x) if (uslsadebug>(n)) printf x 68 int uslsadebug = 0; 69 #else 70 #define DPRINTF(x) 71 #define DPRINTFN(n,x) 72 #endif 73 74 #define USLSA_REQUEST_SET 0x41 75 #define USLSA_REQUEST_GET 0xc1 76 77 #define USLSA_REQ_SET_STATE 0x00 78 79 #define USLSA_REQ_SET_BPS 0x01 80 #define USLSA_REQ_GET_BPS 0x02 81 82 #define USLSA_REQ_SET_DPS 0x03 83 #define USLSA_REQ_GET_DPS 0x04 84 85 #define USLSA_REQ_SET_BREAK 0x05 86 #define USLSA_REQ_GET_BREAK 0x06 87 88 #define USLSA_REQ_SET_FLOW 0x07 89 #define USLSA_REQ_GET_FLOW 0x08 90 91 #define USLSA_REQ_SET_MODEM 0x13 92 #define USLSA_REQ_GET_MODEM 0x14 93 94 #define USLSA_REQ_SET_MISC 0x19 95 #define USLSA_REQ_GET_MISC 0x20 96 97 #define USLSA_STATE_DISABLE 0x0000 98 #define USLSA_STATE_ENABLE 0x0001 99 100 #define USLSA_BPS(b) (3686400/b) 101 102 #define USLSA_DPS_DATA_MASK 0x0f00 103 #define USLSA_DPS_DATA_FIVE 0x0500 104 #define USLSA_DPS_DATA_SIX 0x0600 105 #define USLSA_DPS_DATA_SEVEN 0x0700 106 #define USLSA_DPS_DATA_EIGHT 0x0800 107 #define USLSA_DPS_DATA_NINE 0x0900 108 109 #define USLSA_DPS_PARITY_MASK 0x00f0 110 #define USLSA_DPS_PARITY_SPACE 0x0040 111 #define USLSA_DPS_PARITY_MARK 0x0030 112 #define USLSA_DPS_PARITY_EVEN 0x0020 113 #define USLSA_DPS_PARITY_ODD 0x0010 114 #define USLSA_DPS_PARITY_NONE 0x0000 115 116 #define USLSA_DPS_STOP_MASK 0x000f 117 #define USLSA_DPS_STOP_TWO 0x0002 118 #define USLSA_DPS_STOP_ONE_FIVE 0x0001 119 #define USLSA_DPS_STOP_ONE 0x0000 120 121 #define USLSA_BREAK_DISABLE 0x0001 122 #define USLSA_BREAK_ENABLE 0x0000 123 124 #define USLSA_FLOW_SET_RTS 0x0200 125 #define USLSA_FLOW_SET_DTR 0x0100 126 #define USLSA_FLOW_MSR_MASK 0x00f0 127 #define USLSA_FLOW_MSR_DCD 0x0080 128 #define USLSA_FLOW_MSR_RI 0x0040 129 #define USLSA_FLOW_MSR_DSR 0x0020 130 #define USLSA_FLOW_MSR_CTS 0x0010 131 #define USLSA_FLOW_RTS 0x0002 132 #define USLSA_FLOW_DTR 0x0001 133 134 struct uslsa_softc { 135 USBBASEDEVICE sc_dev; /* base device */ 136 usbd_device_handle sc_udev; /* device */ 137 usbd_interface_handle sc_iface; /* interface */ 138 139 device_ptr_t sc_subdev; /* ucom device */ 140 141 u_char sc_dying; /* disconnecting */ 142 143 u_char sc_lsr; /* local status register */ 144 u_char sc_msr; /* uslsa status register */ 145 }; 146 147 static void uslsa_get_status(void *sc, int, u_char *, u_char *); 148 static void uslsa_set(void *, int, int, int); 149 static int uslsa_param(void *, int, struct termios *); 150 static int uslsa_open(void *, int); 151 static void uslsa_close(void *, int); 152 153 static int uslsa_request_set(struct uslsa_softc *, uint8_t, uint16_t); 154 static void uslsa_set_flow(struct uslsa_softc *, tcflag_t, tcflag_t); 155 156 struct ucom_methods uslsa_methods = { 157 uslsa_get_status, 158 uslsa_set, 159 uslsa_param, 160 NULL, 161 uslsa_open, 162 uslsa_close, 163 NULL, 164 NULL, 165 }; 166 167 #define USLSA_CONFIG_INDEX 0 168 #define USLSA_IFACE_INDEX 0 169 #define USLSA_BUFSIZE 256 170 171 static const struct usb_devno uslsa_devs[] = { 172 { USB_VENDOR_BALTECH, USB_PRODUCT_BALTECH_CARDREADER }, 173 { USB_VENDOR_DYNASTREAM, USB_PRODUCT_DYNASTREAM_ANTDEVBOARD }, 174 { USB_VENDOR_JABLOTRON, USB_PRODUCT_JABLOTRON_PC60B }, 175 { USB_VENDOR_SILABS, USB_PRODUCT_SILABS_ARGUSISP }, 176 { USB_VENDOR_SILABS, USB_PRODUCT_SILABS_CRUMB128 }, 177 { USB_VENDOR_SILABS, USB_PRODUCT_SILABS_DEGREECONT }, 178 { USB_VENDOR_SILABS, USB_PRODUCT_SILABS_DESKTOPMOBILE }, 179 { USB_VENDOR_SILABS, USB_PRODUCT_SILABS_IPLINK1220 }, 180 { USB_VENDOR_SILABS, USB_PRODUCT_SILABS_LIPOWSKY_HARP }, 181 { USB_VENDOR_SILABS, USB_PRODUCT_SILABS_LIPOWSKY_JTAG }, 182 { USB_VENDOR_SILABS, USB_PRODUCT_SILABS_LIPOWSKY_LIN }, 183 { USB_VENDOR_SILABS, USB_PRODUCT_SILABS_POLOLU }, 184 { USB_VENDOR_SILABS, USB_PRODUCT_SILABS_CP210X_1 }, 185 { USB_VENDOR_SILABS, USB_PRODUCT_SILABS_CP210X_2 }, 186 { USB_VENDOR_SILABS, USB_PRODUCT_SILABS_SUNNTO }, 187 { USB_VENDOR_SILABS2, USB_PRODUCT_SILABS2_DCU11CLONE }, 188 { USB_VENDOR_USI, USB_PRODUCT_USI_MC60 } 189 }; 190 #define uslsa_lookup(v, p) usb_lookup(uslsa_devs, v, p) 191 192 USB_DECLARE_DRIVER(uslsa); 193 194 USB_MATCH(uslsa) 195 { 196 USB_MATCH_START(uslsa, uaa); 197 198 return (uslsa_lookup(uaa->vendor, uaa->product) != NULL ? 199 UMATCH_VENDOR_PRODUCT : UMATCH_NONE); 200 } 201 202 USB_ATTACH(uslsa) 203 { 204 USB_ATTACH_START(uslsa, sc, uaa); 205 usbd_device_handle dev = uaa->device; 206 usbd_interface_handle iface; 207 usb_interface_descriptor_t *id; 208 usb_endpoint_descriptor_t *ed; 209 char *devinfop; 210 char *devname; 211 usbd_status err; 212 struct ucom_attach_args uca; 213 int i; 214 215 devname = USBDEVNAME(sc->sc_dev); 216 217 DPRINTFN(10, ("\nuslsa_attach: sc=%p\n", sc)); 218 219 /* Move the device into the configured state. */ 220 err = usbd_set_config_index(dev, USLSA_CONFIG_INDEX, 1); 221 if (err) { 222 printf("\n%s: failed to set configuration, err=%s\n", 223 devname, usbd_errstr(err)); 224 goto bad; 225 } 226 227 err = usbd_device2interface_handle(dev, USLSA_IFACE_INDEX, &iface); 228 if (err) { 229 printf("\n%s: failed to get interface, err=%s\n", 230 devname, usbd_errstr(err)); 231 goto bad; 232 } 233 234 devinfop = usbd_devinfo_alloc(dev, 0); 235 USB_ATTACH_SETUP; 236 printf("%s: %s\n", devname, devinfop); 237 usbd_devinfo_free(devinfop); 238 239 id = usbd_get_interface_descriptor(iface); 240 241 sc->sc_udev = dev; 242 sc->sc_iface = iface; 243 244 uca.info = "Silicon Labs CP210x"; 245 uca.portno = UCOM_UNK_PORTNO; 246 uca.ibufsize = USLSA_BUFSIZE; 247 uca.obufsize = USLSA_BUFSIZE; 248 uca.ibufsizepad = USLSA_BUFSIZE; 249 uca.opkthdrlen = 0; 250 uca.device = dev; 251 uca.iface = iface; 252 uca.methods = &uslsa_methods; 253 uca.arg = sc; 254 255 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, 256 USBDEV(sc->sc_dev)); 257 258 uca.bulkin = uca.bulkout = -1; 259 for (i = 0; i < id->bNumEndpoints; i++) { 260 int addr, dir, attr; 261 262 ed = usbd_interface2endpoint_descriptor(iface, i); 263 if (ed == NULL) { 264 printf("%s: could not read endpoint descriptor" 265 ": %s\n", devname, usbd_errstr(err)); 266 goto bad; 267 } 268 addr = ed->bEndpointAddress; 269 dir = UE_GET_DIR(ed->bEndpointAddress); 270 attr = ed->bmAttributes & UE_XFERTYPE; 271 if (dir == UE_DIR_IN && attr == UE_BULK) 272 uca.bulkin = addr; 273 else if (dir == UE_DIR_OUT && attr == UE_BULK) 274 uca.bulkout = addr; 275 else 276 printf("%s: unexpected endpoint\n", devname); 277 } 278 if (uca.bulkin == -1) { 279 printf("%s: Could not find data bulk in\n", 280 USBDEVNAME(sc->sc_dev)); 281 goto bad; 282 } 283 if (uca.bulkout == -1) { 284 printf("%s: Could not find data bulk out\n", 285 USBDEVNAME(sc->sc_dev)); 286 goto bad; 287 } 288 289 DPRINTF(("uslsa: in=0x%x out=0x%x\n", uca.bulkin, uca.bulkout)); 290 sc->sc_subdev = config_found_sm_loc(self, "ucombus", NULL, &uca, 291 ucomprint, ucomsubmatch); 292 293 USB_ATTACH_SUCCESS_RETURN; 294 295 bad: 296 DPRINTF(("uslsa_attach: ATTACH ERROR\n")); 297 sc->sc_dying = 1; 298 USB_ATTACH_ERROR_RETURN; 299 } 300 301 int 302 uslsa_activate(device_ptr_t self, enum devact act) 303 { 304 struct uslsa_softc *sc = (struct uslsa_softc *) self; 305 int rv = 0; 306 307 switch (act) { 308 case DVACT_ACTIVATE: 309 return (EOPNOTSUPP); 310 break; 311 312 case DVACT_DEACTIVATE: 313 sc->sc_dying = 1; 314 if (sc->sc_subdev) 315 rv = config_deactivate(sc->sc_subdev); 316 break; 317 } 318 return (rv); 319 } 320 321 USB_DETACH(uslsa) 322 { 323 USB_DETACH_START(uslsa, sc); 324 int rv = 0; 325 326 DPRINTF(("uslsa_detach: sc=%p flags=%d\n", sc, flags)); 327 328 sc->sc_dying = 1; 329 330 if (sc->sc_subdev != NULL) 331 rv = config_detach(sc->sc_subdev, flags); 332 333 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, 334 USBDEV(sc->sc_dev)); 335 336 return (rv); 337 } 338 339 static void 340 uslsa_get_status(void *vsc, int portno, u_char *lsr, u_char *msr) 341 { 342 struct uslsa_softc *sc; 343 usb_device_request_t req; 344 usbd_status err; 345 int actlen; 346 uint16_t flowreg; 347 348 sc = vsc; 349 350 DPRINTF(("uslsa_get_status:\n")); 351 352 req.bmRequestType = USLSA_REQUEST_GET; 353 req.bRequest = USLSA_REQ_GET_FLOW; 354 USETW(req.wValue, 0); 355 USETW(req.wIndex, 0); 356 USETW(req.wLength, sizeof(flowreg)); 357 358 err = usbd_do_request_flags(sc->sc_udev, &req, &flowreg, 359 USBD_SHORT_XFER_OK, &actlen, USBD_DEFAULT_TIMEOUT); 360 if (err) 361 printf("%s: uslsa_get_status: %s\n", 362 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 363 364 DPRINTF(("uslsa_get_status: flowreg=0x%x\n", flowreg)); 365 366 sc->sc_msr = (u_char)(USLSA_FLOW_MSR_MASK & flowreg); 367 368 if (lsr != NULL) 369 *lsr = sc->sc_lsr; 370 if (msr != NULL) 371 *msr = sc->sc_msr; 372 } 373 374 static void 375 uslsa_set(void *vsc, int portno, int reg, int onoff) 376 { 377 struct uslsa_softc *sc; 378 379 sc = vsc; 380 381 DPRINTF(("uslsa_set: sc=%p, port=%d reg=%d onoff=%d\n", sc, portno, 382 reg, onoff)); 383 384 switch (reg) { 385 case UCOM_SET_DTR: 386 if (uslsa_request_set(sc, USLSA_REQ_SET_FLOW, 387 (onoff ? (USLSA_FLOW_DTR | USLSA_FLOW_SET_DTR) : 388 USLSA_FLOW_SET_DTR))) 389 printf("%s: uslsa_set_dtr failed\n", 390 USBDEVNAME(sc->sc_dev)); 391 break; 392 case UCOM_SET_RTS: 393 if (uslsa_request_set(sc, USLSA_REQ_SET_FLOW, 394 (onoff ? (USLSA_FLOW_RTS | USLSA_FLOW_SET_RTS) : 395 USLSA_FLOW_SET_RTS))) 396 printf("%s: uslsa_set_rts failed\n", 397 USBDEVNAME(sc->sc_dev)); 398 break; 399 case UCOM_SET_BREAK: 400 if (uslsa_request_set(sc, USLSA_REQ_SET_BREAK, 401 (onoff ? USLSA_BREAK_ENABLE : 402 USLSA_BREAK_DISABLE))) 403 printf("%s: uslsa_set_break failed\n", 404 USBDEVNAME(sc->sc_dev)); 405 break; 406 default: 407 break; 408 } 409 } 410 411 static int 412 uslsa_param(void *vsc, int portno, struct termios * t) 413 { 414 struct uslsa_softc *sc; 415 uint16_t data; 416 417 sc = vsc; 418 419 DPRINTF(("uslsa_param: sc=%p\n", sc)); 420 421 switch (t->c_ospeed) { 422 case B600: 423 case B1200: 424 case B2400: 425 case B4800: 426 case B9600: 427 case B19200: 428 case B38400: 429 case B57600: 430 case B115200: 431 case B230400: 432 case B460800: 433 case B921600: 434 data = USLSA_BPS(t->c_ospeed); 435 break; 436 default: 437 printf("%s: uslsa_param: unsupported data rate, " 438 "forcing default of 115200bps\n", 439 USBDEVNAME(sc->sc_dev)); 440 data = USLSA_BPS(B115200); 441 }; 442 443 if (uslsa_request_set(sc, USLSA_REQ_SET_BPS, data)) 444 printf("%s: uslsa_param: setting data rate failed\n", 445 USBDEVNAME(sc->sc_dev)); 446 447 data = 0; 448 449 if (ISSET(t->c_cflag, CSTOPB)) 450 data |= USLSA_DPS_STOP_TWO; 451 else 452 data |= USLSA_DPS_STOP_ONE; 453 454 if (ISSET(t->c_cflag, PARENB)) { 455 if (ISSET(t->c_cflag, PARODD)) 456 data |= USLSA_DPS_PARITY_ODD; 457 else 458 data |= USLSA_DPS_PARITY_EVEN; 459 } else 460 data |= USLSA_DPS_PARITY_NONE; 461 462 switch (ISSET(t->c_cflag, CSIZE)) { 463 case CS5: 464 data |= USLSA_DPS_DATA_FIVE; 465 break; 466 case CS6: 467 data |= USLSA_DPS_DATA_SIX; 468 break; 469 case CS7: 470 data |= USLSA_DPS_DATA_SEVEN; 471 break; 472 case CS8: 473 data |= USLSA_DPS_DATA_EIGHT; 474 break; 475 } 476 477 DPRINTF(("uslsa_param: setting DPS register to 0x%x\n", data)); 478 if (uslsa_request_set(sc, USLSA_REQ_SET_DPS, data)) 479 printf("%s: setting DPS register failed: invalid argument\n", 480 USBDEVNAME(sc->sc_dev)); 481 482 uslsa_set_flow(sc, t->c_cflag, t->c_iflag); 483 484 return 0; 485 } 486 487 488 static int 489 uslsa_open(void *vsc, int portno) 490 { 491 struct uslsa_softc *sc; 492 493 sc = vsc; 494 495 DPRINTF(("uslsa_open: sc=%p\n", sc)); 496 497 if (sc->sc_dying) 498 return (EIO); 499 500 if (uslsa_request_set(sc, USLSA_REQ_SET_STATE, USLSA_STATE_ENABLE)) 501 return (EIO); 502 503 return 0; 504 } 505 506 void 507 uslsa_close(void *vsc, int portno) 508 { 509 struct uslsa_softc *sc; 510 511 sc = vsc; 512 513 if (sc->sc_dying) 514 return; 515 516 DPRINTF(("uslsa_close: sc=%p\n", sc)); 517 518 if (uslsa_request_set(sc, USLSA_REQ_SET_STATE, 519 USLSA_STATE_DISABLE)) 520 printf("%s: disable-on-close failed\n", 521 USBDEVNAME(sc->sc_dev)); 522 } 523 524 /* 525 * uslsa_request_set(), wrapper for doing sets with usbd_do_request() 526 */ 527 static int 528 uslsa_request_set(struct uslsa_softc * sc, uint8_t request, uint16_t value) 529 { 530 usb_device_request_t req; 531 usbd_status err; 532 533 req.bmRequestType = USLSA_REQUEST_SET; 534 req.bRequest = request; 535 USETW(req.wValue, value); 536 USETW(req.wIndex, 0); 537 USETW(req.wLength, 0); 538 539 err = usbd_do_request(sc->sc_udev, &req, 0); 540 if (err) 541 printf("%s: uslsa_request: %s\n", 542 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 543 return err; 544 } 545 546 /* 547 * uslsa_set_flow() does some magic to set up hardware flow control 548 */ 549 static void 550 uslsa_set_flow(struct uslsa_softc *sc, tcflag_t cflag, tcflag_t iflag) 551 { 552 uint8_t mysterydata[16]; 553 usb_device_request_t req; 554 usbd_status err; 555 556 DPRINTF(("uslsa_set_flow: cflag = 0x%x, iflag = 0x%x\n", 557 cflag, iflag)); 558 559 req.bmRequestType = USLSA_REQUEST_GET; 560 req.bRequest = USLSA_REQ_GET_MODEM; 561 USETW(req.wValue, 0); 562 USETW(req.wIndex, 0); 563 USETW(req.wLength, 16); 564 565 err = usbd_do_request(sc->sc_udev, &req, mysterydata); 566 if (err) 567 printf("%s: uslsa_set_flow: %s\n", 568 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 569 570 if (ISSET(cflag, CRTSCTS)) { 571 mysterydata[0] &= ~0x7b; 572 mysterydata[0] |= 0x09; 573 mysterydata[4] = 0x80; 574 } else { 575 mysterydata[0] &= ~0x7b; 576 mysterydata[0] |= 0x01; 577 mysterydata[4] = 0x40; 578 } 579 580 req.bmRequestType = USLSA_REQUEST_SET; 581 req.bRequest = USLSA_REQ_SET_MODEM; 582 USETW(req.wValue, 0); 583 USETW(req.wIndex, 0); 584 USETW(req.wLength, 16); 585 586 err = usbd_do_request(sc->sc_udev, &req, mysterydata); 587 if (err) 588 printf("%s: uslsa_set_flow: %s\n", 589 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 590 } 591
Indexes created Thu Sep 25 02:09:54 GMT 2025