umct.c revision 1.23
1 /* $NetBSD: umct.c,v 1.23 2008/02/18 05:24:24 dyoung 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 (at) 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 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed by the NetBSD 20 * Foundation, Inc. and its contributors. 21 * 4. Neither the name of The NetBSD Foundation nor the names of its 22 * contributors may be used to endorse or promote products derived 23 * from this software without specific prior written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 26 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 29 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35 * POSSIBILITY OF SUCH DAMAGE. 36 */ 37 38 /* 39 * MCT USB-RS232 Interface Controller 40 * http://www.mct.com.tw/prod/rs232.html 41 * http://www.dlink.com/products/usb/dsbs25 42 */ 43 44 #include <sys/cdefs.h> 45 __KERNEL_RCSID(0, "$NetBSD: umct.c,v 1.23 2008/02/18 05:24:24 dyoung Exp $"); 46 47 #include <sys/param.h> 48 #include <sys/systm.h> 49 #include <sys/kernel.h> 50 #include <sys/malloc.h> 51 #include <sys/ioctl.h> 52 #include <sys/conf.h> 53 #include <sys/tty.h> 54 #include <sys/file.h> 55 #include <sys/select.h> 56 #include <sys/proc.h> 57 #include <sys/vnode.h> 58 #include <sys/device.h> 59 #include <sys/poll.h> 60 61 #include <dev/usb/usb.h> 62 #include <dev/usb/usbcdc.h> 63 64 #include <dev/usb/usbdi.h> 65 #include <dev/usb/usbdi_util.h> 66 #include <dev/usb/usbdevs.h> 67 #include <dev/usb/usb_quirks.h> 68 69 #include <dev/usb/ucomvar.h> 70 #include <dev/usb/umct.h> 71 72 #ifdef UMCT_DEBUG 73 #define DPRINTFN(n, x) if (umctdebug > (n)) logprintf x 74 int umctdebug = 0; 75 #else 76 #define DPRINTFN(n, x) 77 #endif 78 #define DPRINTF(x) DPRINTFN(0, x) 79 80 #define UMCT_CONFIG_INDEX 0 81 #define UMCT_IFACE_INDEX 0 82 83 struct umct_softc { 84 USBBASEDEVICE sc_dev; /* base device */ 85 usbd_device_handle sc_udev; /* USB device */ 86 usbd_interface_handle sc_iface; /* interface */ 87 int sc_iface_number; /* interface number */ 88 u_int16_t sc_product; 89 90 int sc_intr_number; /* interrupt number */ 91 usbd_pipe_handle sc_intr_pipe; /* interrupt pipe */ 92 u_char *sc_intr_buf; /* interrupt buffer */ 93 int sc_isize; 94 95 usb_cdc_line_state_t sc_line_state; /* current line state */ 96 u_char sc_dtr; /* current DTR state */ 97 u_char sc_rts; /* current RTS state */ 98 u_char sc_break; /* set break */ 99 100 u_char sc_status; 101 102 device_t sc_subdev; /* ucom device */ 103 104 u_char sc_dying; /* disconnecting */ 105 106 u_char sc_lsr; /* Local status register */ 107 u_char sc_msr; /* umct status register */ 108 109 u_int last_lcr; /* keep lcr register */ 110 }; 111 112 /* 113 * These are the maximum number of bytes transferred per frame. 114 * The output buffer size cannot be increased due to the size encoding. 115 */ 116 #define UMCTIBUFSIZE 256 117 #define UMCTOBUFSIZE 256 118 119 Static void umct_init(struct umct_softc *); 120 Static void umct_set_baudrate(struct umct_softc *, u_int); 121 Static void umct_set_lcr(struct umct_softc *, u_int); 122 Static void umct_intr(usbd_xfer_handle, usbd_private_handle, usbd_status); 123 124 Static void umct_set(void *, int, int, int); 125 Static void umct_dtr(struct umct_softc *, int); 126 Static void umct_rts(struct umct_softc *, int); 127 Static void umct_break(struct umct_softc *, int); 128 Static void umct_set_line_state(struct umct_softc *); 129 Static void umct_get_status(void *, int portno, u_char *lsr, u_char *msr); 130 Static int umct_param(void *, int, struct termios *); 131 Static int umct_open(void *, int); 132 Static void umct_close(void *, int); 133 134 struct ucom_methods umct_methods = { 135 umct_get_status, 136 umct_set, 137 umct_param, 138 NULL, 139 umct_open, 140 umct_close, 141 NULL, 142 NULL, 143 }; 144 145 static const struct usb_devno umct_devs[] = { 146 /* MCT USB-232 Interface Products */ 147 { USB_VENDOR_MCT, USB_PRODUCT_MCT_USB232 }, 148 /* Sitecom USB-232 Products */ 149 { USB_VENDOR_MCT, USB_PRODUCT_MCT_SITECOM_USB232 }, 150 /* D-Link DU-H3SP USB BAY Hub Products */ 151 { USB_VENDOR_MCT, USB_PRODUCT_MCT_DU_H3SP_USB232 }, 152 /* BELKIN F5U109 */ 153 { USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_F5U109 }, 154 }; 155 #define umct_lookup(v, p) usb_lookup(umct_devs, v, p) 156 157 int umct_match(device_t, struct cfdata *, void *); 158 void umct_attach(device_t, device_t, void *); 159 void umct_childdet(device_t, device_t); 160 int umct_detach(device_t, int); 161 int umct_activate(device_t, enum devact); 162 extern struct cfdriver umct_cd; 163 CFATTACH_DECL2(umct, sizeof(struct umct_softc), umct_match, 164 umct_attach, umct_detach, umct_activate, NULL, umct_childdet); 165 166 USB_MATCH(umct) 167 { 168 USB_MATCH_START(umct, uaa); 169 170 return (umct_lookup(uaa->vendor, uaa->product) != NULL ? 171 UMATCH_VENDOR_PRODUCT : UMATCH_NONE); 172 } 173 174 USB_ATTACH(umct) 175 { 176 USB_ATTACH_START(umct, sc, uaa); 177 usbd_device_handle dev = uaa->device; 178 usb_config_descriptor_t *cdesc; 179 usb_interface_descriptor_t *id; 180 usb_endpoint_descriptor_t *ed; 181 182 char *devinfop; 183 char *devname = USBDEVNAME(sc->sc_dev); 184 usbd_status err; 185 int i; 186 struct ucom_attach_args uca; 187 188 devinfop = usbd_devinfo_alloc(dev, 0); 189 USB_ATTACH_SETUP; 190 printf("%s: %s\n", devname, devinfop); 191 usbd_devinfo_free(devinfop); 192 193 sc->sc_udev = dev; 194 sc->sc_product = uaa->product; 195 196 DPRINTF(("\n\numct attach: sc=%p\n", sc)); 197 198 /* initialize endpoints */ 199 uca.bulkin = uca.bulkout = -1; 200 sc->sc_intr_number = -1; 201 sc->sc_intr_pipe = NULL; 202 203 /* Move the device into the configured state. */ 204 err = usbd_set_config_index(dev, UMCT_CONFIG_INDEX, 1); 205 if (err) { 206 printf("\n%s: failed to set configuration, err=%s\n", 207 devname, usbd_errstr(err)); 208 sc->sc_dying = 1; 209 USB_ATTACH_ERROR_RETURN; 210 } 211 212 /* get the config descriptor */ 213 cdesc = usbd_get_config_descriptor(sc->sc_udev); 214 215 if (cdesc == NULL) { 216 printf("%s: failed to get configuration descriptor\n", 217 USBDEVNAME(sc->sc_dev)); 218 sc->sc_dying = 1; 219 USB_ATTACH_ERROR_RETURN; 220 } 221 222 /* get the interface */ 223 err = usbd_device2interface_handle(dev, UMCT_IFACE_INDEX, 224 &sc->sc_iface); 225 if (err) { 226 printf("\n%s: failed to get interface, err=%s\n", 227 devname, usbd_errstr(err)); 228 sc->sc_dying = 1; 229 USB_ATTACH_ERROR_RETURN; 230 } 231 232 /* Find the bulk{in,out} and interrupt endpoints */ 233 234 id = usbd_get_interface_descriptor(sc->sc_iface); 235 sc->sc_iface_number = id->bInterfaceNumber; 236 237 for (i = 0; i < id->bNumEndpoints; i++) { 238 ed = usbd_interface2endpoint_descriptor(sc->sc_iface, i); 239 if (ed == NULL) { 240 printf("%s: no endpoint descriptor for %d\n", 241 USBDEVNAME(sc->sc_dev), i); 242 sc->sc_dying = 1; 243 USB_ATTACH_ERROR_RETURN; 244 } 245 246 /* 247 * The Bulkin endpoint is marked as an interrupt. Since 248 * we can't rely on the endpoint descriptor order, we'll 249 * check the wMaxPacketSize field to differentiate. 250 */ 251 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 252 UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT && 253 UGETW(ed->wMaxPacketSize) != 0x2) { 254 uca.bulkin = ed->bEndpointAddress; 255 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && 256 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 257 uca.bulkout = ed->bEndpointAddress; 258 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 259 UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) { 260 sc->sc_intr_number = ed->bEndpointAddress; 261 sc->sc_isize = UGETW(ed->wMaxPacketSize); 262 } 263 } 264 265 if (uca.bulkin == -1) { 266 printf("%s: Could not find data bulk in\n", 267 USBDEVNAME(sc->sc_dev)); 268 sc->sc_dying = 1; 269 USB_ATTACH_ERROR_RETURN; 270 } 271 272 if (uca.bulkout == -1) { 273 printf("%s: Could not find data bulk out\n", 274 USBDEVNAME(sc->sc_dev)); 275 sc->sc_dying = 1; 276 USB_ATTACH_ERROR_RETURN; 277 } 278 279 if (sc->sc_intr_number== -1) { 280 printf("%s: Could not find interrupt in\n", 281 USBDEVNAME(sc->sc_dev)); 282 sc->sc_dying = 1; 283 USB_ATTACH_ERROR_RETURN; 284 } 285 286 sc->sc_dtr = sc->sc_rts = 0; 287 uca.portno = UCOM_UNK_PORTNO; 288 /* bulkin, bulkout set above */ 289 uca.ibufsize = UMCTIBUFSIZE; 290 if (sc->sc_product == USB_PRODUCT_MCT_SITECOM_USB232) 291 uca.obufsize = 16; /* device is broken */ 292 else 293 uca.obufsize = UMCTOBUFSIZE; 294 uca.ibufsizepad = UMCTIBUFSIZE; 295 uca.opkthdrlen = 0; 296 uca.device = dev; 297 uca.iface = sc->sc_iface; 298 uca.methods = &umct_methods; 299 uca.arg = sc; 300 uca.info = NULL; 301 302 umct_init(sc); 303 304 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, 305 USBDEV(sc->sc_dev)); 306 307 DPRINTF(("umct: in=0x%x out=0x%x intr=0x%x\n", 308 uca.bulkin, uca.bulkout, sc->sc_intr_number )); 309 sc->sc_subdev = config_found_sm_loc(self, "ucombus", NULL, &uca, 310 ucomprint, ucomsubmatch); 311 312 USB_ATTACH_SUCCESS_RETURN; 313 } 314 315 void 316 umct_childdet(device_t self, device_t child) 317 { 318 struct umct_softc *sc = device_private(self); 319 320 KASSERT(sc->sc_subdev == child); 321 sc->sc_subdev = NULL; 322 } 323 324 USB_DETACH(umct) 325 { 326 USB_DETACH_START(umct, sc); 327 int rv = 0; 328 329 DPRINTF(("umct_detach: sc=%p flags=%d\n", sc, flags)); 330 331 if (sc->sc_intr_pipe != NULL) { 332 usbd_abort_pipe(sc->sc_intr_pipe); 333 usbd_close_pipe(sc->sc_intr_pipe); 334 free(sc->sc_intr_buf, M_USBDEV); 335 sc->sc_intr_pipe = NULL; 336 } 337 338 sc->sc_dying = 1; 339 if (sc->sc_subdev != NULL) 340 rv = config_detach(sc->sc_subdev, flags); 341 342 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, 343 USBDEV(sc->sc_dev)); 344 345 return (rv); 346 } 347 348 int 349 umct_activate(device_t self, enum devact act) 350 { 351 struct umct_softc *sc = device_private(self); 352 int rv = 0; 353 354 switch (act) { 355 case DVACT_ACTIVATE: 356 return (EOPNOTSUPP); 357 358 case DVACT_DEACTIVATE: 359 if (sc->sc_subdev != NULL) 360 rv = config_deactivate(sc->sc_subdev); 361 sc->sc_dying = 1; 362 break; 363 } 364 return (rv); 365 } 366 367 void 368 umct_set_line_state(struct umct_softc *sc) 369 { 370 usb_device_request_t req; 371 uByte ls; 372 373 ls = (sc->sc_dtr ? MCR_DTR : 0) | 374 (sc->sc_rts ? MCR_RTS : 0); 375 376 DPRINTF(("umct_set_line_state: DTR=%d,RTS=%d,ls=%02x\n", 377 sc->sc_dtr, sc->sc_rts, ls)); 378 379 req.bmRequestType = UMCT_SET_REQUEST; 380 req.bRequest = REQ_SET_MCR; 381 USETW(req.wValue, 0); 382 USETW(req.wIndex, sc->sc_iface_number); 383 USETW(req.wLength, LENGTH_SET_MCR); 384 385 (void)usbd_do_request(sc->sc_udev, &req, &ls); 386 } 387 388 void 389 umct_set(void *addr, int portno, int reg, int onoff) 390 { 391 struct umct_softc *sc = addr; 392 393 switch (reg) { 394 case UCOM_SET_DTR: 395 umct_dtr(sc, onoff); 396 break; 397 case UCOM_SET_RTS: 398 umct_rts(sc, onoff); 399 break; 400 case UCOM_SET_BREAK: 401 umct_break(sc, onoff); 402 break; 403 default: 404 break; 405 } 406 } 407 408 void 409 umct_dtr(struct umct_softc *sc, int onoff) 410 { 411 412 DPRINTF(("umct_dtr: onoff=%d\n", onoff)); 413 414 if (sc->sc_dtr == onoff) 415 return; 416 sc->sc_dtr = onoff; 417 418 umct_set_line_state(sc); 419 } 420 421 void 422 umct_rts(struct umct_softc *sc, int onoff) 423 { 424 DPRINTF(("umct_rts: onoff=%d\n", onoff)); 425 426 if (sc->sc_rts == onoff) 427 return; 428 sc->sc_rts = onoff; 429 430 umct_set_line_state(sc); 431 } 432 433 void 434 umct_break(struct umct_softc *sc, int onoff) 435 { 436 DPRINTF(("umct_break: onoff=%d\n", onoff)); 437 438 umct_set_lcr(sc, onoff ? sc->last_lcr | LCR_SET_BREAK : 439 sc->last_lcr); 440 } 441 442 void 443 umct_set_lcr(struct umct_softc *sc, u_int data) 444 { 445 usb_device_request_t req; 446 uByte adata; 447 448 adata = data; 449 req.bmRequestType = UMCT_SET_REQUEST; 450 req.bRequest = REQ_SET_LCR; 451 USETW(req.wValue, 0); 452 USETW(req.wIndex, sc->sc_iface_number); 453 USETW(req.wLength, LENGTH_SET_LCR); 454 455 (void)usbd_do_request(sc->sc_udev, &req, &adata); /* XXX should check */ 456 } 457 458 void 459 umct_set_baudrate(struct umct_softc *sc, u_int rate) 460 { 461 usb_device_request_t req; 462 uDWord arate; 463 u_int val; 464 465 if (sc->sc_product == USB_PRODUCT_MCT_SITECOM_USB232 || 466 sc->sc_product == USB_PRODUCT_BELKIN_F5U109) { 467 switch (rate) { 468 case 300: val = 0x01; break; 469 case 600: val = 0x02; break; 470 case 1200: val = 0x03; break; 471 case 2400: val = 0x04; break; 472 case 4800: val = 0x06; break; 473 case 9600: val = 0x08; break; 474 case 19200: val = 0x09; break; 475 case 38400: val = 0x0a; break; 476 case 57600: val = 0x0b; break; 477 case 115200: val = 0x0c; break; 478 default: val = -1; break; 479 } 480 } else { 481 val = UMCT_BAUD_RATE(rate); 482 } 483 USETDW(arate, val); 484 485 req.bmRequestType = UMCT_SET_REQUEST; 486 req.bRequest = REQ_SET_BAUD_RATE; 487 USETW(req.wValue, 0); 488 USETW(req.wIndex, sc->sc_iface_number); 489 USETW(req.wLength, LENGTH_BAUD_RATE); 490 491 (void)usbd_do_request(sc->sc_udev, &req, arate); /* XXX should check */ 492 } 493 494 void 495 umct_init(struct umct_softc *sc) 496 { 497 umct_set_baudrate(sc, 9600); 498 umct_set_lcr(sc, LCR_DATA_BITS_8 | LCR_PARITY_NONE | LCR_STOP_BITS_1); 499 } 500 501 int 502 umct_param(void *addr, int portno, struct termios *t) 503 { 504 struct umct_softc *sc = addr; 505 u_int data = 0; 506 507 DPRINTF(("umct_param: sc=%p\n", sc)); 508 509 DPRINTF(("umct_param: BAUDRATE=%d\n", t->c_ospeed)); 510 511 if (ISSET(t->c_cflag, CSTOPB)) 512 data |= LCR_STOP_BITS_2; 513 else 514 data |= LCR_STOP_BITS_1; 515 if (ISSET(t->c_cflag, PARENB)) { 516 if (ISSET(t->c_cflag, PARODD)) 517 data |= LCR_PARITY_ODD; 518 else 519 data |= LCR_PARITY_EVEN; 520 } else 521 data |= LCR_PARITY_NONE; 522 switch (ISSET(t->c_cflag, CSIZE)) { 523 case CS5: 524 data |= LCR_DATA_BITS_5; 525 break; 526 case CS6: 527 data |= LCR_DATA_BITS_6; 528 break; 529 case CS7: 530 data |= LCR_DATA_BITS_7; 531 break; 532 case CS8: 533 data |= LCR_DATA_BITS_8; 534 break; 535 } 536 537 umct_set_baudrate(sc, t->c_ospeed); 538 539 sc->last_lcr = data; 540 umct_set_lcr(sc, data); 541 542 return (0); 543 } 544 545 int 546 umct_open(void *addr, int portno) 547 { 548 struct umct_softc *sc = addr; 549 int err, lcr_data; 550 551 if (sc->sc_dying) 552 return (EIO); 553 554 DPRINTF(("umct_open: sc=%p\n", sc)); 555 556 /* initialize LCR */ 557 lcr_data = LCR_DATA_BITS_8 | LCR_PARITY_NONE | 558 LCR_STOP_BITS_1; 559 umct_set_lcr(sc, lcr_data); 560 561 if (sc->sc_intr_number != -1 && sc->sc_intr_pipe == NULL) { 562 sc->sc_status = 0; /* clear status bit */ 563 sc->sc_intr_buf = malloc(sc->sc_isize, M_USBDEV, M_WAITOK); 564 err = usbd_open_pipe_intr(sc->sc_iface, sc->sc_intr_number, 565 USBD_SHORT_XFER_OK, &sc->sc_intr_pipe, sc, 566 sc->sc_intr_buf, sc->sc_isize, 567 umct_intr, USBD_DEFAULT_INTERVAL); 568 if (err) { 569 DPRINTF(("%s: cannot open interrupt pipe (addr %d)\n", 570 USBDEVNAME(sc->sc_dev), sc->sc_intr_number)); 571 return (EIO); 572 } 573 } 574 575 return (0); 576 } 577 578 void 579 umct_close(void *addr, int portno) 580 { 581 struct umct_softc *sc = addr; 582 int err; 583 584 if (sc->sc_dying) 585 return; 586 587 DPRINTF(("umct_close: close\n")); 588 589 if (sc->sc_intr_pipe != NULL) { 590 err = usbd_abort_pipe(sc->sc_intr_pipe); 591 if (err) 592 printf("%s: abort interrupt pipe failed: %s\n", 593 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 594 err = usbd_close_pipe(sc->sc_intr_pipe); 595 if (err) 596 printf("%s: close interrupt pipe failed: %s\n", 597 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 598 free(sc->sc_intr_buf, M_USBDEV); 599 sc->sc_intr_pipe = NULL; 600 } 601 } 602 603 void 604 umct_intr(usbd_xfer_handle xfer, usbd_private_handle priv, 605 usbd_status status) 606 { 607 struct umct_softc *sc = priv; 608 u_char *tbuf = sc->sc_intr_buf; 609 u_char mstatus; 610 611 if (sc->sc_dying) 612 return; 613 614 if (status != USBD_NORMAL_COMPLETION) { 615 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) 616 return; 617 618 DPRINTF(("%s: abnormal status: %s\n", USBDEVNAME(sc->sc_dev), 619 usbd_errstr(status))); 620 usbd_clear_endpoint_stall_async(sc->sc_intr_pipe); 621 return; 622 } 623 624 DPRINTF(("%s: umct status = MSR:%02x, LSR:%02x\n", 625 USBDEVNAME(sc->sc_dev), tbuf[0],tbuf[1])); 626 627 sc->sc_lsr = sc->sc_msr = 0; 628 mstatus = tbuf[0]; 629 if (ISSET(mstatus, MSR_DSR)) 630 sc->sc_msr |= UMSR_DSR; 631 if (ISSET(mstatus, MSR_DCD)) 632 sc->sc_msr |= UMSR_DCD; 633 ucom_status_change((struct ucom_softc *)sc->sc_subdev); 634 } 635 636 void 637 umct_get_status(void *addr, int portno, u_char *lsr, u_char *msr) 638 { 639 struct umct_softc *sc = addr; 640 641 DPRINTF(("umct_get_status:\n")); 642 643 if (lsr != NULL) 644 *lsr = sc->sc_lsr; 645 if (msr != NULL) 646 *msr = sc->sc_msr; 647 } 648
Indexes created Fri Sep 26 20:09:58 GMT 2025