| 1 | /* $NetBSD: umct.c,v 1.35 2016/07/07 06:55:42 msaitoh Exp $ */ |
| 2 | /* |
| 3 | * Copyright (c) 2001 The NetBSD Foundation, Inc. |
| 4 | * All rights reserved. |
| 5 | * |
| 6 | * This code is derived from software contributed to The NetBSD Foundation |
| 7 | * by Ichiro FUKUHARA (ichiro@ichiro.org). |
| 8 | * |
| 9 | * Redistribution and use in source and binary forms, with or without |
| 10 | * modification, are permitted provided that the following conditions |
| 11 | * are met: |
| 12 | * 1. Redistributions of source code must retain the above copyright |
| 13 | * notice, this list of conditions and the following disclaimer. |
| 14 | * 2. Redistributions in binary form must reproduce the above copyright |
| 15 | * notice, this list of conditions and the following disclaimer in the |
| 16 | * documentation and/or other materials provided with the distribution. |
| 17 | * |
| 18 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS |
| 19 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
| 20 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 21 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS |
| 22 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 23 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 24 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| 25 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| 26 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 27 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 28 | * POSSIBILITY OF SUCH DAMAGE. |
| 29 | */ |
| 30 | |
| 31 | /* |
| 32 | * MCT USB-RS232 Interface Controller |
| 33 | * http://www.mct.com.tw/prod/rs232.html |
| 34 | * http://www.dlink.com/products/usb/dsbs25 |
| 35 | */ |
| 36 | |
| 37 | #include <sys/cdefs.h> |
| 38 | __KERNEL_RCSID(0, "$NetBSD: umct.c,v 1.35 2016/07/07 06:55:42 msaitoh Exp $" ); |
| 39 | |
| 40 | #include <sys/param.h> |
| 41 | #include <sys/systm.h> |
| 42 | #include <sys/kernel.h> |
| 43 | #include <sys/ioctl.h> |
| 44 | #include <sys/conf.h> |
| 45 | #include <sys/tty.h> |
| 46 | #include <sys/file.h> |
| 47 | #include <sys/select.h> |
| 48 | #include <sys/proc.h> |
| 49 | #include <sys/vnode.h> |
| 50 | #include <sys/device.h> |
| 51 | #include <sys/poll.h> |
| 52 | |
| 53 | #include <dev/usb/usb.h> |
| 54 | #include <dev/usb/usbcdc.h> |
| 55 | |
| 56 | #include <dev/usb/usbdi.h> |
| 57 | #include <dev/usb/usbdi_util.h> |
| 58 | #include <dev/usb/usbdevs.h> |
| 59 | #include <dev/usb/usb_quirks.h> |
| 60 | |
| 61 | #include <dev/usb/ucomvar.h> |
| 62 | #include <dev/usb/umct.h> |
| 63 | |
| 64 | #ifdef UMCT_DEBUG |
| 65 | #define DPRINTFN(n, x) if (umctdebug > (n)) printf x |
| 66 | int umctdebug = 0; |
| 67 | #else |
| 68 | #define DPRINTFN(n, x) |
| 69 | #endif |
| 70 | #define DPRINTF(x) DPRINTFN(0, x) |
| 71 | |
| 72 | #define UMCT_CONFIG_INDEX 0 |
| 73 | #define UMCT_IFACE_INDEX 0 |
| 74 | |
| 75 | struct umct_softc { |
| 76 | device_t sc_dev; /* base device */ |
| 77 | struct usbd_device * sc_udev; /* USB device */ |
| 78 | struct usbd_interface * sc_iface; /* interface */ |
| 79 | int sc_iface_number; /* interface number */ |
| 80 | uint16_t sc_product; |
| 81 | |
| 82 | int sc_intr_number; /* interrupt number */ |
| 83 | struct usbd_pipe * sc_intr_pipe; /* interrupt pipe */ |
| 84 | u_char *sc_intr_buf; /* interrupt buffer */ |
| 85 | int sc_isize; |
| 86 | |
| 87 | usb_cdc_line_state_t sc_line_state; /* current line state */ |
| 88 | u_char sc_dtr; /* current DTR state */ |
| 89 | u_char sc_rts; /* current RTS state */ |
| 90 | u_char sc_break; /* set break */ |
| 91 | |
| 92 | u_char sc_status; |
| 93 | |
| 94 | device_t sc_subdev; /* ucom device */ |
| 95 | |
| 96 | u_char sc_dying; /* disconnecting */ |
| 97 | |
| 98 | u_char sc_lsr; /* Local status register */ |
| 99 | u_char sc_msr; /* umct status register */ |
| 100 | |
| 101 | u_int last_lcr; /* keep lcr register */ |
| 102 | }; |
| 103 | |
| 104 | /* |
| 105 | * These are the maximum number of bytes transferred per frame. |
| 106 | * The output buffer size cannot be increased due to the size encoding. |
| 107 | */ |
| 108 | #define UMCTIBUFSIZE 256 |
| 109 | #define UMCTOBUFSIZE 256 |
| 110 | |
| 111 | Static void umct_init(struct umct_softc *); |
| 112 | Static void umct_set_baudrate(struct umct_softc *, u_int); |
| 113 | Static void umct_set_lcr(struct umct_softc *, u_int); |
| 114 | Static void umct_intr(struct usbd_xfer *, void *, usbd_status); |
| 115 | |
| 116 | Static void umct_set(void *, int, int, int); |
| 117 | Static void umct_dtr(struct umct_softc *, int); |
| 118 | Static void umct_rts(struct umct_softc *, int); |
| 119 | Static void umct_break(struct umct_softc *, int); |
| 120 | Static void umct_set_line_state(struct umct_softc *); |
| 121 | Static void umct_get_status(void *, int, u_char *, u_char *); |
| 122 | Static int umct_param(void *, int, struct termios *); |
| 123 | Static int umct_open(void *, int); |
| 124 | Static void umct_close(void *, int); |
| 125 | |
| 126 | struct ucom_methods umct_methods = { |
| 127 | .ucom_get_status = umct_get_status, |
| 128 | .ucom_set = umct_set, |
| 129 | .ucom_param = umct_param, |
| 130 | .ucom_ioctl = NULL, |
| 131 | .ucom_open = umct_open, |
| 132 | .ucom_close = umct_close, |
| 133 | .ucom_read = NULL, |
| 134 | .ucom_write = NULL, |
| 135 | }; |
| 136 | |
| 137 | static const struct usb_devno umct_devs[] = { |
| 138 | /* MCT USB-232 Interface Products */ |
| 139 | { USB_VENDOR_MCT, USB_PRODUCT_MCT_USB232 }, |
| 140 | /* Sitecom USB-232 Products */ |
| 141 | { USB_VENDOR_MCT, USB_PRODUCT_MCT_SITECOM_USB232 }, |
| 142 | /* D-Link DU-H3SP USB BAY Hub Products */ |
| 143 | { USB_VENDOR_MCT, USB_PRODUCT_MCT_DU_H3SP_USB232 }, |
| 144 | /* BELKIN F5U109 */ |
| 145 | { USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_F5U109 }, |
| 146 | }; |
| 147 | #define umct_lookup(v, p) usb_lookup(umct_devs, v, p) |
| 148 | |
| 149 | int umct_match(device_t, cfdata_t, void *); |
| 150 | void umct_attach(device_t, device_t, void *); |
| 151 | void umct_childdet(device_t, device_t); |
| 152 | int umct_detach(device_t, int); |
| 153 | int umct_activate(device_t, enum devact); |
| 154 | extern struct cfdriver umct_cd; |
| 155 | CFATTACH_DECL2_NEW(umct, sizeof(struct umct_softc), umct_match, |
| 156 | umct_attach, umct_detach, umct_activate, NULL, umct_childdet); |
| 157 | |
| 158 | int |
| 159 | umct_match(device_t parent, cfdata_t match, void *aux) |
| 160 | { |
| 161 | struct usb_attach_arg *uaa = aux; |
| 162 | |
| 163 | return umct_lookup(uaa->uaa_vendor, uaa->uaa_product) != NULL ? |
| 164 | UMATCH_VENDOR_PRODUCT : UMATCH_NONE; |
| 165 | } |
| 166 | |
| 167 | void |
| 168 | umct_attach(device_t parent, device_t self, void *aux) |
| 169 | { |
| 170 | struct umct_softc *sc = device_private(self); |
| 171 | struct usb_attach_arg *uaa = aux; |
| 172 | struct usbd_device *dev = uaa->uaa_device; |
| 173 | usb_config_descriptor_t *cdesc; |
| 174 | usb_interface_descriptor_t *id; |
| 175 | usb_endpoint_descriptor_t *ed; |
| 176 | |
| 177 | char *devinfop; |
| 178 | usbd_status err; |
| 179 | int i; |
| 180 | struct ucom_attach_args ucaa; |
| 181 | |
| 182 | sc->sc_dev = self; |
| 183 | |
| 184 | aprint_naive("\n" ); |
| 185 | aprint_normal("\n" ); |
| 186 | |
| 187 | devinfop = usbd_devinfo_alloc(dev, 0); |
| 188 | aprint_normal_dev(self, "%s\n" , devinfop); |
| 189 | usbd_devinfo_free(devinfop); |
| 190 | |
| 191 | sc->sc_udev = dev; |
| 192 | sc->sc_product = uaa->uaa_product; |
| 193 | |
| 194 | DPRINTF(("\n\numct attach: sc=%p\n" , sc)); |
| 195 | |
| 196 | /* initialize endpoints */ |
| 197 | ucaa.ucaa_bulkin = ucaa.ucaa_bulkout = -1; |
| 198 | sc->sc_intr_number = -1; |
| 199 | sc->sc_intr_pipe = NULL; |
| 200 | |
| 201 | /* Move the device into the configured state. */ |
| 202 | err = usbd_set_config_index(dev, UMCT_CONFIG_INDEX, 1); |
| 203 | if (err) { |
| 204 | aprint_error_dev(self, "failed to set configuration, err=%s\n" , |
| 205 | usbd_errstr(err)); |
| 206 | sc->sc_dying = 1; |
| 207 | return; |
| 208 | } |
| 209 | |
| 210 | /* get the config descriptor */ |
| 211 | cdesc = usbd_get_config_descriptor(sc->sc_udev); |
| 212 | |
| 213 | if (cdesc == NULL) { |
| 214 | aprint_error_dev(self, |
| 215 | "failed to get configuration descriptor\n" ); |
| 216 | sc->sc_dying = 1; |
| 217 | return; |
| 218 | } |
| 219 | |
| 220 | /* get the interface */ |
| 221 | err = usbd_device2interface_handle(dev, UMCT_IFACE_INDEX, |
| 222 | &sc->sc_iface); |
| 223 | if (err) { |
| 224 | aprint_error_dev(self, "failed to get interface, err=%s\n" , |
| 225 | usbd_errstr(err)); |
| 226 | sc->sc_dying = 1; |
| 227 | return; |
| 228 | } |
| 229 | |
| 230 | /* Find the bulk{in,out} and interrupt endpoints */ |
| 231 | |
| 232 | id = usbd_get_interface_descriptor(sc->sc_iface); |
| 233 | sc->sc_iface_number = id->bInterfaceNumber; |
| 234 | |
| 235 | for (i = 0; i < id->bNumEndpoints; i++) { |
| 236 | ed = usbd_interface2endpoint_descriptor(sc->sc_iface, i); |
| 237 | if (ed == NULL) { |
| 238 | aprint_error_dev(self, |
| 239 | "no endpoint descriptor for %d\n" , i); |
| 240 | sc->sc_dying = 1; |
| 241 | return; |
| 242 | } |
| 243 | |
| 244 | /* |
| 245 | * The Bulkin endpoint is marked as an interrupt. Since |
| 246 | * we can't rely on the endpoint descriptor order, we'll |
| 247 | * check the wMaxPacketSize field to differentiate. |
| 248 | */ |
| 249 | if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && |
| 250 | UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT && |
| 251 | UGETW(ed->wMaxPacketSize) != 0x2) { |
| 252 | ucaa.ucaa_bulkin = ed->bEndpointAddress; |
| 253 | } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && |
| 254 | UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { |
| 255 | ucaa.ucaa_bulkout = ed->bEndpointAddress; |
| 256 | } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && |
| 257 | UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) { |
| 258 | sc->sc_intr_number = ed->bEndpointAddress; |
| 259 | sc->sc_isize = UGETW(ed->wMaxPacketSize); |
| 260 | } |
| 261 | } |
| 262 | |
| 263 | if (ucaa.ucaa_bulkin == -1) { |
| 264 | aprint_error_dev(self, "Could not find data bulk in\n" ); |
| 265 | sc->sc_dying = 1; |
| 266 | return; |
| 267 | } |
| 268 | |
| 269 | if (ucaa.ucaa_bulkout == -1) { |
| 270 | aprint_error_dev(self, "Could not find data bulk out\n" ); |
| 271 | sc->sc_dying = 1; |
| 272 | return; |
| 273 | } |
| 274 | |
| 275 | if (sc->sc_intr_number == -1) { |
| 276 | aprint_error_dev(self, "Could not find interrupt in\n" ); |
| 277 | sc->sc_dying = 1; |
| 278 | return; |
| 279 | } |
| 280 | |
| 281 | sc->sc_dtr = sc->sc_rts = 0; |
| 282 | ucaa.ucaa_portno = UCOM_UNK_PORTNO; |
| 283 | /* ucaa_bulkin, ucaa_bulkout set above */ |
| 284 | ucaa.ucaa_ibufsize = UMCTIBUFSIZE; |
| 285 | if (sc->sc_product == USB_PRODUCT_MCT_SITECOM_USB232) |
| 286 | ucaa.ucaa_obufsize = 16; /* device is broken */ |
| 287 | else |
| 288 | ucaa.ucaa_obufsize = UMCTOBUFSIZE; |
| 289 | ucaa.ucaa_ibufsizepad = UMCTIBUFSIZE; |
| 290 | ucaa.ucaa_opkthdrlen = 0; |
| 291 | ucaa.ucaa_device = dev; |
| 292 | ucaa.ucaa_iface = sc->sc_iface; |
| 293 | ucaa.ucaa_methods = &umct_methods; |
| 294 | ucaa.ucaa_arg = sc; |
| 295 | ucaa.ucaa_info = NULL; |
| 296 | |
| 297 | umct_init(sc); |
| 298 | |
| 299 | usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, sc->sc_dev); |
| 300 | |
| 301 | DPRINTF(("umct: in=0x%x out=0x%x intr=0x%x\n" , |
| 302 | ucaa.ucaa_bulkin, ucaa.ucaa_bulkout, sc->sc_intr_number)); |
| 303 | sc->sc_subdev = config_found_sm_loc(self, "ucombus" , NULL, &ucaa, |
| 304 | ucomprint, ucomsubmatch); |
| 305 | |
| 306 | return; |
| 307 | } |
| 308 | |
| 309 | void |
| 310 | umct_childdet(device_t self, device_t child) |
| 311 | { |
| 312 | struct umct_softc *sc = device_private(self); |
| 313 | |
| 314 | KASSERT(sc->sc_subdev == child); |
| 315 | sc->sc_subdev = NULL; |
| 316 | } |
| 317 | |
| 318 | int |
| 319 | umct_detach(device_t self, int flags) |
| 320 | { |
| 321 | struct umct_softc *sc = device_private(self); |
| 322 | int rv = 0; |
| 323 | |
| 324 | DPRINTF(("umct_detach: sc=%p flags=%d\n" , sc, flags)); |
| 325 | |
| 326 | if (sc->sc_intr_pipe != NULL) { |
| 327 | usbd_abort_pipe(sc->sc_intr_pipe); |
| 328 | usbd_close_pipe(sc->sc_intr_pipe); |
| 329 | kmem_free(sc->sc_intr_buf, sc->sc_isize); |
| 330 | sc->sc_intr_pipe = NULL; |
| 331 | } |
| 332 | |
| 333 | sc->sc_dying = 1; |
| 334 | if (sc->sc_subdev != NULL) |
| 335 | rv = config_detach(sc->sc_subdev, flags); |
| 336 | |
| 337 | usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, sc->sc_dev); |
| 338 | |
| 339 | return rv; |
| 340 | } |
| 341 | |
| 342 | int |
| 343 | umct_activate(device_t self, enum devact act) |
| 344 | { |
| 345 | struct umct_softc *sc = device_private(self); |
| 346 | |
| 347 | switch (act) { |
| 348 | case DVACT_DEACTIVATE: |
| 349 | sc->sc_dying = 1; |
| 350 | return 0; |
| 351 | default: |
| 352 | return EOPNOTSUPP; |
| 353 | } |
| 354 | } |
| 355 | |
| 356 | void |
| 357 | umct_set_line_state(struct umct_softc *sc) |
| 358 | { |
| 359 | usb_device_request_t req; |
| 360 | uByte ls; |
| 361 | |
| 362 | ls = (sc->sc_dtr ? MCR_DTR : 0) | |
| 363 | (sc->sc_rts ? MCR_RTS : 0); |
| 364 | |
| 365 | DPRINTF(("umct_set_line_state: DTR=%d,RTS=%d,ls=%02x\n" , |
| 366 | sc->sc_dtr, sc->sc_rts, ls)); |
| 367 | |
| 368 | req.bmRequestType = UMCT_SET_REQUEST; |
| 369 | req.bRequest = REQ_SET_MCR; |
| 370 | USETW(req.wValue, 0); |
| 371 | USETW(req.wIndex, sc->sc_iface_number); |
| 372 | USETW(req.wLength, LENGTH_SET_MCR); |
| 373 | |
| 374 | (void)usbd_do_request(sc->sc_udev, &req, &ls); |
| 375 | } |
| 376 | |
| 377 | void |
| 378 | umct_set(void *addr, int portno, int reg, int onoff) |
| 379 | { |
| 380 | struct umct_softc *sc = addr; |
| 381 | |
| 382 | switch (reg) { |
| 383 | case UCOM_SET_DTR: |
| 384 | umct_dtr(sc, onoff); |
| 385 | break; |
| 386 | case UCOM_SET_RTS: |
| 387 | umct_rts(sc, onoff); |
| 388 | break; |
| 389 | case UCOM_SET_BREAK: |
| 390 | umct_break(sc, onoff); |
| 391 | break; |
| 392 | default: |
| 393 | break; |
| 394 | } |
| 395 | } |
| 396 | |
| 397 | void |
| 398 | umct_dtr(struct umct_softc *sc, int onoff) |
| 399 | { |
| 400 | |
| 401 | DPRINTF(("umct_dtr: onoff=%d\n" , onoff)); |
| 402 | |
| 403 | if (sc->sc_dtr == onoff) |
| 404 | return; |
| 405 | sc->sc_dtr = onoff; |
| 406 | |
| 407 | umct_set_line_state(sc); |
| 408 | } |
| 409 | |
| 410 | void |
| 411 | umct_rts(struct umct_softc *sc, int onoff) |
| 412 | { |
| 413 | DPRINTF(("umct_rts: onoff=%d\n" , onoff)); |
| 414 | |
| 415 | if (sc->sc_rts == onoff) |
| 416 | return; |
| 417 | sc->sc_rts = onoff; |
| 418 | |
| 419 | umct_set_line_state(sc); |
| 420 | } |
| 421 | |
| 422 | void |
| 423 | umct_break(struct umct_softc *sc, int onoff) |
| 424 | { |
| 425 | DPRINTF(("umct_break: onoff=%d\n" , onoff)); |
| 426 | |
| 427 | umct_set_lcr(sc, onoff ? sc->last_lcr | LCR_SET_BREAK : |
| 428 | sc->last_lcr); |
| 429 | } |
| 430 | |
| 431 | void |
| 432 | umct_set_lcr(struct umct_softc *sc, u_int data) |
| 433 | { |
| 434 | usb_device_request_t req; |
| 435 | uByte adata; |
| 436 | |
| 437 | adata = data; |
| 438 | req.bmRequestType = UMCT_SET_REQUEST; |
| 439 | req.bRequest = REQ_SET_LCR; |
| 440 | USETW(req.wValue, 0); |
| 441 | USETW(req.wIndex, sc->sc_iface_number); |
| 442 | USETW(req.wLength, LENGTH_SET_LCR); |
| 443 | |
| 444 | (void)usbd_do_request(sc->sc_udev, &req, &adata); /* XXX should check */ |
| 445 | } |
| 446 | |
| 447 | void |
| 448 | umct_set_baudrate(struct umct_softc *sc, u_int rate) |
| 449 | { |
| 450 | usb_device_request_t req; |
| 451 | uDWord arate; |
| 452 | u_int val; |
| 453 | |
| 454 | if (sc->sc_product == USB_PRODUCT_MCT_SITECOM_USB232 || |
| 455 | sc->sc_product == USB_PRODUCT_BELKIN_F5U109) { |
| 456 | switch (rate) { |
| 457 | case 300: val = 0x01; break; |
| 458 | case 600: val = 0x02; break; |
| 459 | case 1200: val = 0x03; break; |
| 460 | case 2400: val = 0x04; break; |
| 461 | case 4800: val = 0x06; break; |
| 462 | case 9600: val = 0x08; break; |
| 463 | case 19200: val = 0x09; break; |
| 464 | case 38400: val = 0x0a; break; |
| 465 | case 57600: val = 0x0b; break; |
| 466 | case 115200: val = 0x0c; break; |
| 467 | default: val = -1; break; |
| 468 | } |
| 469 | } else { |
| 470 | val = UMCT_BAUD_RATE(rate); |
| 471 | } |
| 472 | USETDW(arate, val); |
| 473 | |
| 474 | req.bmRequestType = UMCT_SET_REQUEST; |
| 475 | req.bRequest = REQ_SET_BAUD_RATE; |
| 476 | USETW(req.wValue, 0); |
| 477 | USETW(req.wIndex, sc->sc_iface_number); |
| 478 | USETW(req.wLength, LENGTH_BAUD_RATE); |
| 479 | |
| 480 | (void)usbd_do_request(sc->sc_udev, &req, arate); /* XXX should check */ |
| 481 | } |
| 482 | |
| 483 | void |
| 484 | umct_init(struct umct_softc *sc) |
| 485 | { |
| 486 | umct_set_baudrate(sc, 9600); |
| 487 | umct_set_lcr(sc, LCR_DATA_BITS_8 | LCR_PARITY_NONE | LCR_STOP_BITS_1); |
| 488 | } |
| 489 | |
| 490 | int |
| 491 | umct_param(void *addr, int portno, struct termios *t) |
| 492 | { |
| 493 | struct umct_softc *sc = addr; |
| 494 | u_int data = 0; |
| 495 | |
| 496 | DPRINTF(("umct_param: sc=%p\n" , sc)); |
| 497 | |
| 498 | DPRINTF(("umct_param: BAUDRATE=%d\n" , t->c_ospeed)); |
| 499 | |
| 500 | if (ISSET(t->c_cflag, CSTOPB)) |
| 501 | data |= LCR_STOP_BITS_2; |
| 502 | else |
| 503 | data |= LCR_STOP_BITS_1; |
| 504 | if (ISSET(t->c_cflag, PARENB)) { |
| 505 | if (ISSET(t->c_cflag, PARODD)) |
| 506 | data |= LCR_PARITY_ODD; |
| 507 | else |
| 508 | data |= LCR_PARITY_EVEN; |
| 509 | } else |
| 510 | data |= LCR_PARITY_NONE; |
| 511 | switch (ISSET(t->c_cflag, CSIZE)) { |
| 512 | case CS5: |
| 513 | data |= LCR_DATA_BITS_5; |
| 514 | break; |
| 515 | case CS6: |
| 516 | data |= LCR_DATA_BITS_6; |
| 517 | break; |
| 518 | case CS7: |
| 519 | data |= LCR_DATA_BITS_7; |
| 520 | break; |
| 521 | case CS8: |
| 522 | data |= LCR_DATA_BITS_8; |
| 523 | break; |
| 524 | } |
| 525 | |
| 526 | umct_set_baudrate(sc, t->c_ospeed); |
| 527 | |
| 528 | sc->last_lcr = data; |
| 529 | umct_set_lcr(sc, data); |
| 530 | |
| 531 | return 0; |
| 532 | } |
| 533 | |
| 534 | int |
| 535 | umct_open(void *addr, int portno) |
| 536 | { |
| 537 | struct umct_softc *sc = addr; |
| 538 | int err, lcr_data; |
| 539 | |
| 540 | if (sc->sc_dying) |
| 541 | return EIO; |
| 542 | |
| 543 | DPRINTF(("umct_open: sc=%p\n" , sc)); |
| 544 | |
| 545 | /* initialize LCR */ |
| 546 | lcr_data = LCR_DATA_BITS_8 | LCR_PARITY_NONE | |
| 547 | LCR_STOP_BITS_1; |
| 548 | umct_set_lcr(sc, lcr_data); |
| 549 | |
| 550 | if (sc->sc_intr_number != -1 && sc->sc_intr_pipe == NULL) { |
| 551 | sc->sc_status = 0; /* clear status bit */ |
| 552 | sc->sc_intr_buf = kmem_alloc(sc->sc_isize, KM_SLEEP); |
| 553 | err = usbd_open_pipe_intr(sc->sc_iface, sc->sc_intr_number, |
| 554 | USBD_SHORT_XFER_OK, &sc->sc_intr_pipe, sc, |
| 555 | sc->sc_intr_buf, sc->sc_isize, |
| 556 | umct_intr, USBD_DEFAULT_INTERVAL); |
| 557 | if (err) { |
| 558 | DPRINTF(("%s: cannot open interrupt pipe (addr %d)\n" , |
| 559 | device_xname(sc->sc_dev), sc->sc_intr_number)); |
| 560 | return EIO; |
| 561 | } |
| 562 | } |
| 563 | |
| 564 | return 0; |
| 565 | } |
| 566 | |
| 567 | void |
| 568 | umct_close(void *addr, int portno) |
| 569 | { |
| 570 | struct umct_softc *sc = addr; |
| 571 | int err; |
| 572 | |
| 573 | if (sc->sc_dying) |
| 574 | return; |
| 575 | |
| 576 | DPRINTF(("umct_close: close\n" )); |
| 577 | |
| 578 | if (sc->sc_intr_pipe != NULL) { |
| 579 | err = usbd_abort_pipe(sc->sc_intr_pipe); |
| 580 | if (err) |
| 581 | printf("%s: abort interrupt pipe failed: %s\n" , |
| 582 | device_xname(sc->sc_dev), usbd_errstr(err)); |
| 583 | err = usbd_close_pipe(sc->sc_intr_pipe); |
| 584 | if (err) |
| 585 | printf("%s: close interrupt pipe failed: %s\n" , |
| 586 | device_xname(sc->sc_dev), usbd_errstr(err)); |
| 587 | kmem_free(sc->sc_intr_buf, sc->sc_isize); |
| 588 | sc->sc_intr_pipe = NULL; |
| 589 | } |
| 590 | } |
| 591 | |
| 592 | void |
| 593 | umct_intr(struct usbd_xfer *xfer, void *priv, |
| 594 | usbd_status status) |
| 595 | { |
| 596 | struct umct_softc *sc = priv; |
| 597 | u_char *tbuf = sc->sc_intr_buf; |
| 598 | u_char mstatus; |
| 599 | |
| 600 | if (sc->sc_dying) |
| 601 | return; |
| 602 | |
| 603 | if (status != USBD_NORMAL_COMPLETION) { |
| 604 | if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) |
| 605 | return; |
| 606 | |
| 607 | DPRINTF(("%s: abnormal status: %s\n" , device_xname(sc->sc_dev), |
| 608 | usbd_errstr(status))); |
| 609 | usbd_clear_endpoint_stall_async(sc->sc_intr_pipe); |
| 610 | return; |
| 611 | } |
| 612 | |
| 613 | DPRINTF(("%s: umct status = MSR:%02x, LSR:%02x\n" , |
| 614 | device_xname(sc->sc_dev), tbuf[0],tbuf[1])); |
| 615 | |
| 616 | sc->sc_lsr = sc->sc_msr = 0; |
| 617 | mstatus = tbuf[0]; |
| 618 | if (ISSET(mstatus, MSR_DSR)) |
| 619 | sc->sc_msr |= UMSR_DSR; |
| 620 | if (ISSET(mstatus, MSR_DCD)) |
| 621 | sc->sc_msr |= UMSR_DCD; |
| 622 | ucom_status_change(device_private(sc->sc_subdev)); |
| 623 | } |
| 624 | |
| 625 | void |
| 626 | umct_get_status(void *addr, int portno, u_char *lsr, u_char *msr) |
| 627 | { |
| 628 | struct umct_softc *sc = addr; |
| 629 | |
| 630 | DPRINTF(("umct_get_status:\n" )); |
| 631 | |
| 632 | if (lsr != NULL) |
| 633 | *lsr = sc->sc_lsr; |
| 634 | if (msr != NULL) |
| 635 | *msr = sc->sc_msr; |
| 636 | } |
| 637 | |