| 1 | /* $NetBSD: ubsa_common.c,v 1.10 2016/04/23 10:15:32 skrll 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 1.10 2016/04/23 10:15:32 skrll Exp $" ); |
| 58 | |
| 59 | #include <sys/param.h> |
| 60 | #include <sys/systm.h> |
| 61 | #include <sys/kernel.h> |
| 62 | #include <sys/kmem.h> |
| 63 | #include <sys/ioccom.h> |
| 64 | #include <sys/fcntl.h> |
| 65 | #include <sys/conf.h> |
| 66 | #include <sys/tty.h> |
| 67 | #include <sys/file.h> |
| 68 | #include <sys/select.h> |
| 69 | #include <sys/proc.h> |
| 70 | #include <sys/device.h> |
| 71 | #include <sys/poll.h> |
| 72 | #include <sys/sysctl.h> |
| 73 | #include <sys/bus.h> |
| 74 | |
| 75 | #include <dev/usb/usb.h> |
| 76 | #include <dev/usb/usbdi.h> |
| 77 | #include <dev/usb/usbdi_util.h> |
| 78 | #include <dev/usb/usbdivar.h> |
| 79 | |
| 80 | #include <dev/usb/usbcdc.h> |
| 81 | #include <dev/usb/usbdevs.h> |
| 82 | #include <dev/usb/usb_quirks.h> |
| 83 | #include <dev/usb/ucomvar.h> |
| 84 | #include <dev/usb/ubsavar.h> |
| 85 | |
| 86 | #ifdef UBSA_DEBUG |
| 87 | extern int ubsadebug; |
| 88 | #define DPRINTFN(n, x) do { \ |
| 89 | if (ubsadebug > (n)) \ |
| 90 | printf x; \ |
| 91 | } while (0) |
| 92 | #else |
| 93 | #define DPRINTFN(n, x) |
| 94 | #endif |
| 95 | #define DPRINTF(x) DPRINTFN(0, x) |
| 96 | |
| 97 | int |
| 98 | ubsa_request(struct ubsa_softc *sc, int portno, uint8_t request, uint16_t value) |
| 99 | { |
| 100 | usb_device_request_t req; |
| 101 | usbd_status err; |
| 102 | |
| 103 | if (sc->sc_quadumts) |
| 104 | req.bmRequestType = UT_WRITE_CLASS_INTERFACE; |
| 105 | else |
| 106 | req.bmRequestType = UT_WRITE_VENDOR_DEVICE; |
| 107 | |
| 108 | if (portno >= UBSA_MAXCONN) { |
| 109 | printf("%s: ubsa_request: invalid port(%d)#\n" , |
| 110 | device_xname(sc->sc_dev), portno); |
| 111 | return USBD_INVAL; |
| 112 | } |
| 113 | |
| 114 | req.bRequest = request; |
| 115 | USETW(req.wValue, value); |
| 116 | USETW(req.wIndex, sc->sc_iface_number[portno]); |
| 117 | USETW(req.wLength, 0); |
| 118 | |
| 119 | err = usbd_do_request(sc->sc_udev, &req, 0); |
| 120 | if (err) |
| 121 | printf("%s: ubsa_request: %s\n" , |
| 122 | device_xname(sc->sc_dev), usbd_errstr(err)); |
| 123 | return err; |
| 124 | } |
| 125 | |
| 126 | void |
| 127 | ubsa_dtr(struct ubsa_softc *sc, int portno, int onoff) |
| 128 | { |
| 129 | |
| 130 | DPRINTF(("ubsa_dtr: onoff = %d\n" , onoff)); |
| 131 | |
| 132 | if (sc->sc_dtr == onoff) |
| 133 | return; |
| 134 | sc->sc_dtr = onoff; |
| 135 | |
| 136 | ubsa_request(sc, portno, UBSA_SET_DTR, onoff ? 1 : 0); |
| 137 | } |
| 138 | |
| 139 | void |
| 140 | ubsa_rts(struct ubsa_softc *sc, int portno, int onoff) |
| 141 | { |
| 142 | |
| 143 | DPRINTF(("ubsa_rts: onoff = %d\n" , onoff)); |
| 144 | |
| 145 | if (sc->sc_rts == onoff) |
| 146 | return; |
| 147 | sc->sc_rts = onoff; |
| 148 | |
| 149 | ubsa_request(sc, portno, UBSA_SET_RTS, onoff ? 1 : 0); |
| 150 | } |
| 151 | |
| 152 | void |
| 153 | ubsa_quadumts_dtr(struct ubsa_softc *sc, int portno, int onoff) |
| 154 | { |
| 155 | |
| 156 | DPRINTF(("ubsa_dtr: onoff = %d\n" , onoff)); |
| 157 | |
| 158 | if (sc->sc_dtr == onoff) |
| 159 | return; |
| 160 | sc->sc_dtr = onoff; |
| 161 | |
| 162 | ubsa_request(sc, portno, UBSA_QUADUMTS_SET_PIN, |
| 163 | (sc->sc_rts ? 2 : 0)+(sc->sc_dtr ? 1 : 0)); |
| 164 | } |
| 165 | |
| 166 | void |
| 167 | ubsa_quadumts_rts(struct ubsa_softc *sc, int portno, int onoff) |
| 168 | { |
| 169 | |
| 170 | DPRINTF(("ubsa_rts: onoff = %d\n" , onoff)); |
| 171 | |
| 172 | if (sc->sc_rts == onoff) |
| 173 | return; |
| 174 | sc->sc_rts = onoff; |
| 175 | |
| 176 | ubsa_request(sc, portno, UBSA_QUADUMTS_SET_PIN, |
| 177 | (sc->sc_rts ? 2 : 0)+(sc->sc_dtr ? 1 : 0)); |
| 178 | } |
| 179 | |
| 180 | void |
| 181 | ubsa_break(struct ubsa_softc *sc, int portno, int onoff) |
| 182 | { |
| 183 | DPRINTF(("ubsa_rts: onoff = %d\n" , onoff)); |
| 184 | |
| 185 | ubsa_request(sc, portno, UBSA_SET_BREAK, onoff ? 1 : 0); |
| 186 | } |
| 187 | |
| 188 | void |
| 189 | ubsa_set(void *addr, int portno, int reg, int onoff) |
| 190 | { |
| 191 | struct ubsa_softc *sc; |
| 192 | |
| 193 | sc = addr; |
| 194 | switch (reg) { |
| 195 | case UCOM_SET_DTR: |
| 196 | if (sc->sc_quadumts) |
| 197 | ubsa_quadumts_dtr(sc, portno, onoff); |
| 198 | else |
| 199 | ubsa_dtr(sc, portno, onoff); |
| 200 | break; |
| 201 | case UCOM_SET_RTS: |
| 202 | if (sc->sc_quadumts) |
| 203 | ubsa_quadumts_rts(sc, portno, onoff); |
| 204 | else |
| 205 | ubsa_rts(sc, portno, onoff); |
| 206 | break; |
| 207 | case UCOM_SET_BREAK: |
| 208 | if (!sc->sc_quadumts) |
| 209 | ubsa_break(sc, portno, onoff); |
| 210 | break; |
| 211 | default: |
| 212 | break; |
| 213 | } |
| 214 | } |
| 215 | |
| 216 | void |
| 217 | ubsa_baudrate(struct ubsa_softc *sc, int portno, speed_t speed) |
| 218 | { |
| 219 | uint16_t value = 0; |
| 220 | |
| 221 | DPRINTF(("ubsa_baudrate: speed = %d\n" , speed)); |
| 222 | |
| 223 | switch(speed) { |
| 224 | case B0: |
| 225 | break; |
| 226 | case B300: |
| 227 | case B600: |
| 228 | case B1200: |
| 229 | case B2400: |
| 230 | case B4800: |
| 231 | case B9600: |
| 232 | case B19200: |
| 233 | case B38400: |
| 234 | case B57600: |
| 235 | case B115200: |
| 236 | case B230400: |
| 237 | value = B230400 / speed; |
| 238 | break; |
| 239 | default: |
| 240 | printf("%s: ubsa_param: unsupported baudrate, " |
| 241 | "forcing default of 9600\n" , |
| 242 | device_xname(sc->sc_dev)); |
| 243 | value = B230400 / B9600; |
| 244 | break; |
| 245 | }; |
| 246 | |
| 247 | if (speed == B0) { |
| 248 | ubsa_flow(sc, portno, 0, 0); |
| 249 | ubsa_dtr(sc, portno, 0); |
| 250 | ubsa_rts(sc, portno, 0); |
| 251 | } else |
| 252 | ubsa_request(sc, portno, UBSA_SET_BAUDRATE, value); |
| 253 | } |
| 254 | |
| 255 | void |
| 256 | ubsa_parity(struct ubsa_softc *sc, int portno, tcflag_t cflag) |
| 257 | { |
| 258 | int value; |
| 259 | |
| 260 | DPRINTF(("ubsa_parity: cflag = 0x%x\n" , cflag)); |
| 261 | |
| 262 | if (cflag & PARENB) |
| 263 | value = (cflag & PARODD) ? UBSA_PARITY_ODD : UBSA_PARITY_EVEN; |
| 264 | else |
| 265 | value = UBSA_PARITY_NONE; |
| 266 | |
| 267 | ubsa_request(sc, portno, UBSA_SET_PARITY, value); |
| 268 | } |
| 269 | |
| 270 | void |
| 271 | ubsa_databits(struct ubsa_softc *sc, int portno, tcflag_t cflag) |
| 272 | { |
| 273 | int value; |
| 274 | |
| 275 | DPRINTF(("ubsa_databits: cflag = 0x%x\n" , cflag)); |
| 276 | |
| 277 | switch (cflag & CSIZE) { |
| 278 | case CS5: value = 0; break; |
| 279 | case CS6: value = 1; break; |
| 280 | case CS7: value = 2; break; |
| 281 | case CS8: value = 3; break; |
| 282 | default: |
| 283 | printf("%s: ubsa_param: unsupported databits requested, " |
| 284 | "forcing default of 8\n" , |
| 285 | device_xname(sc->sc_dev)); |
| 286 | value = 3; |
| 287 | } |
| 288 | |
| 289 | ubsa_request(sc, portno, UBSA_SET_DATA_BITS, value); |
| 290 | } |
| 291 | |
| 292 | void |
| 293 | ubsa_stopbits(struct ubsa_softc *sc, int portno, tcflag_t cflag) |
| 294 | { |
| 295 | int value; |
| 296 | |
| 297 | DPRINTF(("ubsa_stopbits: cflag = 0x%x\n" , cflag)); |
| 298 | |
| 299 | value = (cflag & CSTOPB) ? 1 : 0; |
| 300 | |
| 301 | ubsa_request(sc, portno, UBSA_SET_STOP_BITS, value); |
| 302 | } |
| 303 | |
| 304 | void |
| 305 | ubsa_flow(struct ubsa_softc *sc, int portno, tcflag_t cflag, tcflag_t iflag) |
| 306 | { |
| 307 | int value; |
| 308 | |
| 309 | DPRINTF(("ubsa_flow: cflag = 0x%x, iflag = 0x%x\n" , cflag, iflag)); |
| 310 | |
| 311 | value = 0; |
| 312 | if (cflag & CRTSCTS) |
| 313 | value |= UBSA_FLOW_OCTS | UBSA_FLOW_IRTS; |
| 314 | if (iflag & (IXON|IXOFF)) |
| 315 | value |= UBSA_FLOW_OXON | UBSA_FLOW_IXON; |
| 316 | |
| 317 | ubsa_request(sc, portno, UBSA_SET_FLOW_CTRL, value); |
| 318 | } |
| 319 | |
| 320 | int |
| 321 | ubsa_param(void *addr, int portno, struct termios *ti) |
| 322 | { |
| 323 | struct ubsa_softc *sc = addr; |
| 324 | |
| 325 | DPRINTF(("ubsa_param: sc = %p\n" , sc)); |
| 326 | |
| 327 | if (!sc->sc_quadumts) { |
| 328 | ubsa_baudrate(sc, portno, ti->c_ospeed); |
| 329 | ubsa_parity(sc, portno, ti->c_cflag); |
| 330 | ubsa_databits(sc, portno, ti->c_cflag); |
| 331 | ubsa_stopbits(sc, portno, ti->c_cflag); |
| 332 | ubsa_flow(sc, portno, ti->c_cflag, ti->c_iflag); |
| 333 | } |
| 334 | |
| 335 | return 0; |
| 336 | } |
| 337 | |
| 338 | int |
| 339 | ubsa_open(void *addr, int portno) |
| 340 | { |
| 341 | struct ubsa_softc *sc = addr; |
| 342 | int err; |
| 343 | |
| 344 | if (sc->sc_dying) |
| 345 | return ENXIO; |
| 346 | |
| 347 | if (sc->sc_intr_number != -1 && sc->sc_intr_pipe == NULL) { |
| 348 | sc->sc_intr_buf = kmem_alloc(sc->sc_isize, KM_SLEEP); |
| 349 | /* XXX only iface# = 0 has intr line */ |
| 350 | /* XXX E220 specific? need to check */ |
| 351 | err = usbd_open_pipe_intr(sc->sc_iface[0], |
| 352 | sc->sc_intr_number, |
| 353 | USBD_SHORT_XFER_OK, |
| 354 | &sc->sc_intr_pipe, |
| 355 | sc, |
| 356 | sc->sc_intr_buf, |
| 357 | sc->sc_isize, |
| 358 | ubsa_intr, |
| 359 | UBSA_INTR_INTERVAL); |
| 360 | if (err) { |
| 361 | printf("%s: cannot open interrupt pipe (addr %d)\n" , |
| 362 | device_xname(sc->sc_dev), |
| 363 | sc->sc_intr_number); |
| 364 | return EIO; |
| 365 | } |
| 366 | } |
| 367 | |
| 368 | return 0; |
| 369 | } |
| 370 | |
| 371 | void |
| 372 | ubsa_close(void *addr, int portno) |
| 373 | { |
| 374 | struct ubsa_softc *sc = addr; |
| 375 | int err; |
| 376 | |
| 377 | if (sc->sc_dying) |
| 378 | return; |
| 379 | |
| 380 | DPRINTF(("ubsa_close: close\n" )); |
| 381 | |
| 382 | if (sc->sc_intr_pipe != NULL) { |
| 383 | err = usbd_abort_pipe(sc->sc_intr_pipe); |
| 384 | if (err) |
| 385 | printf("%s: abort interrupt pipe failed: %s\n" , |
| 386 | device_xname(sc->sc_dev), |
| 387 | usbd_errstr(err)); |
| 388 | err = usbd_close_pipe(sc->sc_intr_pipe); |
| 389 | if (err) |
| 390 | printf("%s: close interrupt pipe failed: %s\n" , |
| 391 | device_xname(sc->sc_dev), |
| 392 | usbd_errstr(err)); |
| 393 | kmem_free(sc->sc_intr_buf, sc->sc_isize); |
| 394 | sc->sc_intr_pipe = NULL; |
| 395 | } |
| 396 | } |
| 397 | |
| 398 | void |
| 399 | ubsa_intr(struct usbd_xfer *xfer, void *priv, |
| 400 | usbd_status status) |
| 401 | { |
| 402 | struct ubsa_softc *sc = priv; |
| 403 | u_char *buf; |
| 404 | int i; |
| 405 | |
| 406 | buf = sc->sc_intr_buf; |
| 407 | if (sc->sc_dying) |
| 408 | return; |
| 409 | |
| 410 | if (status != USBD_NORMAL_COMPLETION) { |
| 411 | if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) |
| 412 | return; |
| 413 | |
| 414 | DPRINTF(("%s: ubsa_intr: abnormal status: %s\n" , |
| 415 | device_xname(sc->sc_dev), usbd_errstr(status))); |
| 416 | usbd_clear_endpoint_stall_async(sc->sc_intr_pipe); |
| 417 | return; |
| 418 | } |
| 419 | |
| 420 | /* incidentally, Belkin adapter status bits match UART 16550 bits */ |
| 421 | sc->sc_lsr = buf[2]; |
| 422 | sc->sc_msr = buf[3]; |
| 423 | |
| 424 | DPRINTF(("%s: ubsa lsr = 0x%02x, msr = 0x%02x\n" , |
| 425 | device_xname(sc->sc_dev), sc->sc_lsr, sc->sc_msr)); |
| 426 | |
| 427 | for (i = 0; i < sc->sc_numif; i++) { |
| 428 | ucom_status_change(device_private(sc->sc_subdevs[i])); |
| 429 | } |
| 430 | } |
| 431 | |
| 432 | void |
| 433 | ubsa_get_status(void *addr, int portno, u_char *lsr, u_char *msr) |
| 434 | { |
| 435 | struct ubsa_softc *sc = addr; |
| 436 | |
| 437 | DPRINTF(("ubsa_get_status\n" )); |
| 438 | |
| 439 | if (lsr != NULL) |
| 440 | *lsr = sc->sc_lsr; |
| 441 | if (msr != NULL) |
| 442 | *msr = sc->sc_msr; |
| 443 | } |
| 444 | |
| 445 | |