1/* $NetBSD: ubsa_common.c,v 1.7 2011/12/23 00:51:45 jakllsch Exp $ */ 2/*- 3 * Copyright (c) 2002, Alexander Kabaev <kan.FreeBSD.org>. 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27/* 28 * Copyright (c) 2001 The NetBSD Foundation, Inc. 29 * All rights reserved. 30 * 31 * This code is derived from software contributed to The NetBSD Foundation 32 * by Ichiro FUKUHARA (ichiro@ichiro.org). 33 * 34 * Redistribution and use in source and binary forms, with or without 35 * modification, are permitted provided that the following conditions 36 * are met: 37 * 1. Redistributions of source code must retain the above copyright 38 * notice, this list of conditions and the following disclaimer. 39 * 2. Redistributions in binary form must reproduce the above copyright 40 * notice, this list of conditions and the following disclaimer in the 41 * documentation and/or other materials provided with the distribution. 42 * 43 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 44 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 45 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 46 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 47 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 48 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 49 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 50 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 51 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 52 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 53 * POSSIBILITY OF SUCH DAMAGE. 54 */ 55 56#include <sys/cdefs.h> 57__KERNEL_RCSID(0, "$NetBSD: ubsa_common.c,v 1.7 2011/12/23 00:51:45 jakllsch Exp $"); 58 59#include <sys/param.h> 60#include <sys/systm.h> 61#include <sys/kernel.h> 62#include <sys/malloc.h> 63#ifdef __FreeBSD__ 64#include <sys/bus.h> 65#endif 66#include <sys/ioccom.h> 67#include <sys/fcntl.h> 68#include <sys/conf.h> 69#include <sys/tty.h> 70#include <sys/file.h> 71#if __FreeBSD_version >= 500014 72#include <sys/selinfo.h> 73#else 74#include <sys/select.h> 75#endif 76#include <sys/proc.h> 77#include <sys/device.h> 78#include <sys/poll.h> 79#include <sys/sysctl.h> 80#include <sys/bus.h> 81 82#include <dev/usb/usb.h> 83#include <dev/usb/usbdi.h> 84#include <dev/usb/usbdi_util.h> 85#include <dev/usb/usbdivar.h> 86 87#include <dev/usb/usbcdc.h> 88#include <dev/usb/usbdevs.h> 89#include <dev/usb/usb_quirks.h> 90#include <dev/usb/ucomvar.h> 91#include <dev/usb/ubsavar.h> 92 93#ifdef UBSA_DEBUG 94extern int ubsadebug; 95#define DPRINTFN(n, x) do { \ 96 if (ubsadebug > (n)) \ 97 printf x; \ 98 } while (0) 99#else 100#define DPRINTFN(n, x) 101#endif 102#define DPRINTF(x) DPRINTFN(0, x) 103 104int 105ubsa_request(struct ubsa_softc *sc, int portno, u_int8_t request, u_int16_t value) 106{ 107 usb_device_request_t req; 108 usbd_status err; 109 110 if (sc->sc_quadumts) 111 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 112 else 113 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 114 115 if (portno >= UBSA_MAXCONN) { 116 printf("%s: ubsa_request: invalid port(%d)#\n", 117 device_xname(sc->sc_dev), portno); 118 return USBD_INVAL; 119 } 120 121 req.bRequest = request; 122 USETW(req.wValue, value); 123 USETW(req.wIndex, sc->sc_iface_number[portno]); 124 USETW(req.wLength, 0); 125 126 err = usbd_do_request(sc->sc_udev, &req, 0); 127 if (err) 128 printf("%s: ubsa_request: %s\n", 129 device_xname(sc->sc_dev), usbd_errstr(err)); 130 return (err); 131} 132 133void 134ubsa_dtr(struct ubsa_softc *sc, int portno, int onoff) 135{ 136 137 DPRINTF(("ubsa_dtr: onoff = %d\n", onoff)); 138 139 if (sc->sc_dtr == onoff) 140 return; 141 sc->sc_dtr = onoff; 142 143 ubsa_request(sc, portno, UBSA_SET_DTR, onoff ? 1 : 0); 144} 145 146void 147ubsa_rts(struct ubsa_softc *sc, int portno, int onoff) 148{ 149 150 DPRINTF(("ubsa_rts: onoff = %d\n", onoff)); 151 152 if (sc->sc_rts == onoff) 153 return; 154 sc->sc_rts = onoff; 155 156 ubsa_request(sc, portno, UBSA_SET_RTS, onoff ? 1 : 0); 157} 158 159void 160ubsa_quadumts_dtr(struct ubsa_softc *sc, int portno, int onoff) 161{ 162 163 DPRINTF(("ubsa_dtr: onoff = %d\n", onoff)); 164 165 if (sc->sc_dtr == onoff) 166 return; 167 sc->sc_dtr = onoff; 168 169 ubsa_request(sc, portno, UBSA_QUADUMTS_SET_PIN, 170 (sc->sc_rts ? 2 : 0)+(sc->sc_dtr ? 1 : 0)); 171} 172 173void 174ubsa_quadumts_rts(struct ubsa_softc *sc, int portno, int onoff) 175{ 176 177 DPRINTF(("ubsa_rts: onoff = %d\n", onoff)); 178 179 if (sc->sc_rts == onoff) 180 return; 181 sc->sc_rts = onoff; 182 183 ubsa_request(sc, portno, UBSA_QUADUMTS_SET_PIN, 184 (sc->sc_rts ? 2 : 0)+(sc->sc_dtr ? 1 : 0)); 185} 186 187void 188ubsa_break(struct ubsa_softc *sc, int portno, int onoff) 189{ 190 DPRINTF(("ubsa_rts: onoff = %d\n", onoff)); 191 192 ubsa_request(sc, portno, UBSA_SET_BREAK, onoff ? 1 : 0); 193} 194 195void 196ubsa_set(void *addr, int portno, int reg, int onoff) 197{ 198 struct ubsa_softc *sc; 199 200 sc = addr; 201 switch (reg) { 202 case UCOM_SET_DTR: 203 if (sc->sc_quadumts) 204 ubsa_quadumts_dtr(sc, portno, onoff); 205 else 206 ubsa_dtr(sc, portno, onoff); 207 break; 208 case UCOM_SET_RTS: 209 if (sc->sc_quadumts) 210 ubsa_quadumts_rts(sc, portno, onoff); 211 else 212 ubsa_rts(sc, portno, onoff); 213 break; 214 case UCOM_SET_BREAK: 215 if (!sc->sc_quadumts) 216 ubsa_break(sc, portno, onoff); 217 break; 218 default: 219 break; 220 } 221} 222 223void 224ubsa_baudrate(struct ubsa_softc *sc, int portno, speed_t speed) 225{ 226 u_int16_t value = 0; 227 228 DPRINTF(("ubsa_baudrate: speed = %d\n", speed)); 229 230 switch(speed) { 231 case B0: 232 break; 233 case B300: 234 case B600: 235 case B1200: 236 case B2400: 237 case B4800: 238 case B9600: 239 case B19200: 240 case B38400: 241 case B57600: 242 case B115200: 243 case B230400: 244 value = B230400 / speed; 245 break; 246 default: 247 printf("%s: ubsa_param: unsupported baudrate, " 248 "forcing default of 9600\n", 249 device_xname(sc->sc_dev)); 250 value = B230400 / B9600; 251 break; 252 }; 253 254 if (speed == B0) { 255 ubsa_flow(sc, portno, 0, 0); 256 ubsa_dtr(sc, portno, 0); 257 ubsa_rts(sc, portno, 0); 258 } else 259 ubsa_request(sc, portno, UBSA_SET_BAUDRATE, value); 260} 261 262void 263ubsa_parity(struct ubsa_softc *sc, int portno, tcflag_t cflag) 264{ 265 int value; 266 267 DPRINTF(("ubsa_parity: cflag = 0x%x\n", cflag)); 268 269 if (cflag & PARENB) 270 value = (cflag & PARODD) ? UBSA_PARITY_ODD : UBSA_PARITY_EVEN; 271 else 272 value = UBSA_PARITY_NONE; 273 274 ubsa_request(sc, portno, UBSA_SET_PARITY, value); 275} 276 277void 278ubsa_databits(struct ubsa_softc *sc, int portno, tcflag_t cflag) 279{ 280 int value; 281 282 DPRINTF(("ubsa_databits: cflag = 0x%x\n", cflag)); 283 284 switch (cflag & CSIZE) { 285 case CS5: value = 0; break; 286 case CS6: value = 1; break; 287 case CS7: value = 2; break; 288 case CS8: value = 3; break; 289 default: 290 printf("%s: ubsa_param: unsupported databits requested, " 291 "forcing default of 8\n", 292 device_xname(sc->sc_dev)); 293 value = 3; 294 } 295 296 ubsa_request(sc, portno, UBSA_SET_DATA_BITS, value); 297} 298 299void 300ubsa_stopbits(struct ubsa_softc *sc, int portno, tcflag_t cflag) 301{ 302 int value; 303 304 DPRINTF(("ubsa_stopbits: cflag = 0x%x\n", cflag)); 305 306 value = (cflag & CSTOPB) ? 1 : 0; 307 308 ubsa_request(sc, portno, UBSA_SET_STOP_BITS, value); 309} 310 311void 312ubsa_flow(struct ubsa_softc *sc, int portno, tcflag_t cflag, tcflag_t iflag) 313{ 314 int value; 315 316 DPRINTF(("ubsa_flow: cflag = 0x%x, iflag = 0x%x\n", cflag, iflag)); 317 318 value = 0; 319 if (cflag & CRTSCTS) 320 value |= UBSA_FLOW_OCTS | UBSA_FLOW_IRTS; 321 if (iflag & (IXON|IXOFF)) 322 value |= UBSA_FLOW_OXON | UBSA_FLOW_IXON; 323 324 ubsa_request(sc, portno, UBSA_SET_FLOW_CTRL, value); 325} 326 327int 328ubsa_param(void *addr, int portno, struct termios *ti) 329{ 330 struct ubsa_softc *sc = addr; 331 332 DPRINTF(("ubsa_param: sc = %p\n", sc)); 333 334 if (!sc->sc_quadumts) { 335 ubsa_baudrate(sc, portno, ti->c_ospeed); 336 ubsa_parity(sc, portno, ti->c_cflag); 337 ubsa_databits(sc, portno, ti->c_cflag); 338 ubsa_stopbits(sc, portno, ti->c_cflag); 339 ubsa_flow(sc, portno, ti->c_cflag, ti->c_iflag); 340 } 341 342 return (0); 343} 344 345int 346ubsa_open(void *addr, int portno) 347{ 348 struct ubsa_softc *sc = addr; 349 int err; 350 351 if (sc->sc_dying) 352 return (ENXIO); 353 354 if (sc->sc_intr_number != -1 && sc->sc_intr_pipe == NULL) { 355 sc->sc_intr_buf = malloc(sc->sc_isize, M_USBDEV, M_WAITOK); 356 /* XXX only iface# = 0 has intr line */ 357 /* XXX E220 specific? need to check */ 358 err = usbd_open_pipe_intr(sc->sc_iface[0], 359 sc->sc_intr_number, 360 USBD_SHORT_XFER_OK, 361 &sc->sc_intr_pipe, 362 sc, 363 sc->sc_intr_buf, 364 sc->sc_isize, 365 ubsa_intr, 366 UBSA_INTR_INTERVAL); 367 if (err) { 368 printf("%s: cannot open interrupt pipe (addr %d)\n", 369 device_xname(sc->sc_dev), 370 sc->sc_intr_number); 371 return (EIO); 372 } 373 } 374 375 return (0); 376} 377 378void 379ubsa_close(void *addr, int portno) 380{ 381 struct ubsa_softc *sc = addr; 382 int err; 383 384 if (sc->sc_dying) 385 return; 386 387 DPRINTF(("ubsa_close: close\n")); 388 389 if (sc->sc_intr_pipe != NULL) { 390 err = usbd_abort_pipe(sc->sc_intr_pipe); 391 if (err) 392 printf("%s: abort interrupt pipe failed: %s\n", 393 device_xname(sc->sc_dev), 394 usbd_errstr(err)); 395 err = usbd_close_pipe(sc->sc_intr_pipe); 396 if (err) 397 printf("%s: close interrupt pipe failed: %s\n", 398 device_xname(sc->sc_dev), 399 usbd_errstr(err)); 400 free(sc->sc_intr_buf, M_USBDEV); 401 sc->sc_intr_pipe = NULL; 402 } 403} 404 405void 406ubsa_intr(usbd_xfer_handle xfer, usbd_private_handle priv, 407 usbd_status status) 408{ 409 struct ubsa_softc *sc = priv; 410 u_char *buf; 411 int i; 412 413 buf = sc->sc_intr_buf; 414 if (sc->sc_dying) 415 return; 416 417 if (status != USBD_NORMAL_COMPLETION) { 418 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) 419 return; 420 421 DPRINTF(("%s: ubsa_intr: abnormal status: %s\n", 422 device_xname(sc->sc_dev), usbd_errstr(status))); 423 usbd_clear_endpoint_stall_async(sc->sc_intr_pipe); 424 return; 425 } 426 427 /* incidentally, Belkin adapter status bits match UART 16550 bits */ 428 sc->sc_lsr = buf[2]; 429 sc->sc_msr = buf[3]; 430 431 DPRINTF(("%s: ubsa lsr = 0x%02x, msr = 0x%02x\n", 432 device_xname(sc->sc_dev), sc->sc_lsr, sc->sc_msr)); 433 434 for (i = 0; i < sc->sc_numif; i++) { 435 ucom_status_change(device_private(sc->sc_subdevs[i])); 436 } 437} 438 439void 440ubsa_get_status(void *addr, int portno, u_char *lsr, u_char *msr) 441{ 442 struct ubsa_softc *sc = addr; 443 444 DPRINTF(("ubsa_get_status\n")); 445 446 if (lsr != NULL) 447 *lsr = sc->sc_lsr; 448 if (msr != NULL) 449 *msr = sc->sc_msr; 450} 451 452