udl.c revision 1.20
1 /* $NetBSD: udl.c,v 1.20 2017/06/01 02:45:12 chs Exp $ */ 2 3 /*- 4 * Copyright (c) 2009 FUKAUMI Naoki. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 /* 29 * Copyright (c) 2009 Marcus Glocker <mglocker (at) openbsd.org> 30 * 31 * Permission to use, copy, modify, and distribute this software for any 32 * purpose with or without fee is hereby granted, provided that the above 33 * copyright notice and this permission notice appear in all copies. 34 * 35 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 36 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 37 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 38 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 39 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 40 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 41 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 42 */ 43 44 /* 45 * Driver for the ``DisplayLink DL-1x0 / DL-1x5'' graphic chips based 46 * on the reversed engineered specifications of Florian Echtler 47 * <floe at butterbrot dot org>: 48 * 49 * http://floe.butterbrot.org/displaylink/doku.php 50 * 51 * This driver was written by Marcus Glocker for OpenBSD and ported to 52 * NetBSD by FUKAUMI Naoki with many modification. 53 */ 54 55 #include <sys/cdefs.h> 56 __KERNEL_RCSID(0, "$NetBSD: udl.c,v 1.20 2017/06/01 02:45:12 chs Exp $"); 57 58 #ifdef _KERNEL_OPT 59 #include "opt_usb.h" 60 #endif 61 62 #include <sys/param.h> 63 #include <sys/device.h> 64 #include <sys/kernel.h> 65 #include <sys/proc.h> 66 #include <sys/systm.h> 67 #include <sys/kmem.h> 68 #include <sys/kthread.h> 69 #include <sys/condvar.h> 70 #include <uvm/uvm.h> 71 72 #include <sys/bus.h> 73 #include <sys/endian.h> 74 75 #include <dev/usb/usb.h> 76 #include <dev/usb/usbdi.h> 77 #include <dev/usb/usbdivar.h> 78 #include <dev/usb/usbdi_util.h> 79 #include <dev/usb/usb_mem.h> 80 #include <dev/usb/usbdevs.h> 81 82 #include <dev/firmload.h> 83 84 #include <dev/videomode/videomode.h> 85 #include <dev/videomode/edidvar.h> 86 87 #include <dev/wscons/wsconsio.h> 88 #include <dev/wscons/wsdisplayvar.h> 89 #include <dev/rasops/rasops.h> 90 91 #include <dev/usb/udl.h> 92 #ifdef notyet 93 #include <dev/usb/udlio.h> 94 #endif 95 96 /* 97 * Defines. 98 */ 99 #ifdef UDL_DEBUG 100 #define DPRINTF(x) do { if (udl_debug) printf x; } while (0) 101 #define DPRINTFN(n, x) do { if (udl_debug >= (n)) printf x; } while (0) 102 int udl_debug = 1; 103 #else 104 #define DPRINTF(x) do {} while (0) 105 #define DPRINTFN(n, x) do {} while (0) 106 #endif 107 108 /* 109 * Prototypes. 110 */ 111 static int udl_match(device_t, cfdata_t, void *); 112 static void udl_attach(device_t, device_t, void *); 113 static int udl_detach(device_t, int); 114 115 static int udl_ioctl(void *, void *, u_long, void *, int, 116 struct lwp *); 117 static paddr_t udl_mmap(void *, void *, off_t, int); 118 static int udl_alloc_screen(void *, const struct wsscreen_descr *, 119 void **, int *, int *, long *); 120 static void udl_free_screen(void *, void *); 121 static int udl_show_screen(void *, void *, int, 122 void (*)(void *, int, int), void *); 123 124 static void udl_comp_load(struct udl_softc *); 125 static void udl_comp_unload(struct udl_softc *); 126 static int udl_fbmem_alloc(struct udl_softc *); 127 static void udl_fbmem_free(struct udl_softc *); 128 static int udl_cmdq_alloc(struct udl_softc *); 129 static void udl_cmdq_free(struct udl_softc *); 130 static struct udl_cmdq *udl_cmdq_get(struct udl_softc *sc); 131 static void udl_cmdq_put(struct udl_softc *sc, 132 struct udl_cmdq *cmdq); 133 static void udl_cmdq_flush(struct udl_softc *); 134 135 static void udl_cursor(void *, int, int, int); 136 static void udl_putchar(void *, int, int, u_int, long); 137 static void udl_copycols(void *, int, int, int, int); 138 static void udl_erasecols(void *, int, int, int, long); 139 static void udl_copyrows(void *, int, int, int); 140 static void udl_eraserows(void *, int, int, long); 141 142 static void udl_restore_char(struct rasops_info *); 143 static void udl_draw_char(struct rasops_info *, uint16_t *, u_int, 144 int, int); 145 static void udl_copy_rect(struct udl_softc *, int, int, int, int, 146 int, int); 147 static void udl_fill_rect(struct udl_softc *, uint16_t, int, int, 148 int, int); 149 #ifdef notyet 150 static void udl_draw_rect(struct udl_softc *, 151 struct udl_ioctl_damage *); 152 static void udl_draw_rect_comp(struct udl_softc *, 153 struct udl_ioctl_damage *); 154 #endif 155 156 static inline void udl_copy_line(struct udl_softc *, int, int, int); 157 static inline void udl_fill_line(struct udl_softc *, uint16_t, int, int); 158 static inline void udl_draw_line(struct udl_softc *, uint16_t *, int, 159 int); 160 #ifdef notyet 161 static inline void udl_draw_line_comp(struct udl_softc *, uint16_t *, int, 162 int); 163 #endif 164 165 static int udl_cmd_send(struct udl_softc *); 166 static void udl_cmd_send_async(struct udl_softc *); 167 static void udl_cmd_send_async_cb(struct usbd_xfer *, 168 void *, usbd_status); 169 170 static int udl_ctrl_msg(struct udl_softc *, uint8_t, uint8_t, 171 uint16_t, uint16_t, uint8_t *, uint16_t); 172 static int udl_init(struct udl_softc *); 173 static void udl_read_edid(struct udl_softc *); 174 static void udl_set_address(struct udl_softc *, int, int, int, 175 int); 176 static void udl_blank(struct udl_softc *, int); 177 static uint16_t udl_lfsr(uint16_t); 178 static int udl_set_resolution(struct udl_softc *, 179 const struct videomode *); 180 static const struct videomode *udl_videomode_lookup(const char *); 181 static void udl_update_thread(void *); 182 static inline void udl_startstop(struct udl_softc *, bool); 183 184 static inline void 185 udl_cmd_add_1(struct udl_softc *sc, uint8_t val) 186 { 187 188 *sc->sc_cmd_buf++ = val; 189 } 190 191 static inline void 192 udl_cmd_add_2(struct udl_softc *sc, uint16_t val) 193 { 194 195 be16enc(sc->sc_cmd_buf, val); 196 sc->sc_cmd_buf += 2; 197 } 198 199 static inline void 200 udl_cmd_add_3(struct udl_softc *sc, uint32_t val) 201 { 202 203 udl_cmd_add_2(sc, val >> 8); 204 udl_cmd_add_1(sc, val); 205 } 206 207 static inline void 208 udl_cmd_add_4(struct udl_softc *sc, uint32_t val) 209 { 210 211 be32enc(sc->sc_cmd_buf, val); 212 sc->sc_cmd_buf += 4; 213 } 214 215 static inline void 216 udl_cmd_add_buf(struct udl_softc *sc, uint16_t *buf, int width) 217 { 218 #if BYTE_ORDER == BIG_ENDIAN 219 memcpy(sc->sc_cmd_buf, buf, width * 2); 220 sc->sc_cmd_buf += width * 2; 221 #else 222 uint16_t *endp; 223 224 endp = buf + width; 225 226 if (((uintptr_t)sc->sc_cmd_buf & 1) == 0) { 227 while (buf < endp) { 228 *(uint16_t *)sc->sc_cmd_buf = htobe16(*buf++); 229 sc->sc_cmd_buf += 2; 230 } 231 } else { 232 while (buf < endp) { 233 be16enc(sc->sc_cmd_buf, *buf++); 234 sc->sc_cmd_buf += 2; 235 } 236 } 237 #endif 238 } 239 240 static inline void 241 udl_reg_write_1(struct udl_softc *sc, uint8_t reg, uint8_t val) 242 { 243 244 udl_cmd_add_4(sc, (UDL_BULK_SOC << 24) | 245 (UDL_BULK_CMD_REG_WRITE_1 << 16) | (reg << 8) | val); 246 } 247 248 static inline void 249 udl_reg_write_2(struct udl_softc *sc, uint8_t reg, uint16_t val) 250 { 251 252 udl_reg_write_1(sc, reg++, val >> 8); 253 udl_reg_write_1(sc, reg, val); 254 } 255 256 static inline void 257 udl_reg_write_3(struct udl_softc *sc, uint8_t reg, uint32_t val) 258 { 259 260 udl_reg_write_1(sc, reg++, val >> 16); 261 udl_reg_write_1(sc, reg++, val >> 8); 262 udl_reg_write_1(sc, reg, val); 263 } 264 265 /* XXX */ 266 static int 267 firmware_load(const char *dname, const char *iname, uint8_t **ucodep, 268 size_t *sizep) 269 { 270 firmware_handle_t fh; 271 int error; 272 273 if ((error = firmware_open(dname, iname, &fh)) != 0) 274 return error; 275 *sizep = firmware_get_size(fh); 276 if ((*ucodep = firmware_malloc(*sizep)) == NULL) { 277 firmware_close(fh); 278 return ENOMEM; 279 } 280 if ((error = firmware_read(fh, 0, *ucodep, *sizep)) != 0) 281 firmware_free(*ucodep, *sizep); 282 firmware_close(fh); 283 284 return error; 285 } 286 287 /* 288 * Driver glue. 289 */ 290 CFATTACH_DECL_NEW(udl, sizeof(struct udl_softc), 291 udl_match, udl_attach, udl_detach, NULL); 292 293 /* 294 * wsdisplay glue. 295 */ 296 static struct wsdisplay_accessops udl_accessops = { 297 udl_ioctl, 298 udl_mmap, 299 udl_alloc_screen, 300 udl_free_screen, 301 udl_show_screen, 302 NULL, 303 NULL, 304 NULL, 305 }; 306 307 /* 308 * Matching devices. 309 */ 310 static const struct usb_devno udl_devs[] = { 311 { USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_GUC2020 }, 312 { USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_LD220 }, 313 { USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_LD190 }, 314 { USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_U70 }, 315 { USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_POLARIS2 }, 316 { USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_VCUD60 }, 317 { USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_CONV }, 318 { USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_DLDVI }, 319 { USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_USBRGB }, 320 { USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_LCDUSB7X }, 321 { USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_LCDUSB10X }, 322 { USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_VGA10 }, 323 { USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_WSDVI }, 324 { USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_EC008 }, 325 { USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_GXDVIU2 }, 326 { USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_GXDVIU2B }, 327 { USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_LCD4300U }, 328 { USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_LCD8000U }, 329 { USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_HPDOCK }, 330 { USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_NL571 }, 331 { USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_M01061 }, 332 { USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_NBDOCK }, 333 { USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_SWDVI }, 334 { USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_LUM70 }, 335 { USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_LCD8000UD_DVI }, 336 { USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_LDEWX015U }, 337 { USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_MIMO }, 338 { USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_PLUGABLE }, 339 { USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_LT1421WIDE }, 340 { USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_SD_U2VDH }, 341 { USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_UM7X0 }, 342 { USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_FYDVI }, 343 { USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_FYDVI2 } 344 }; 345 346 static int 347 udl_match(device_t parent, cfdata_t match, void *aux) 348 { 349 struct usb_attach_arg *uaa = aux; 350 351 if (usb_lookup(udl_devs, uaa->uaa_vendor, uaa->uaa_product) != NULL) 352 return UMATCH_VENDOR_PRODUCT; 353 354 return UMATCH_NONE; 355 } 356 357 static void 358 udl_attach(device_t parent, device_t self, void *aux) 359 { 360 struct udl_softc *sc = device_private(self); 361 struct usb_attach_arg *uaa = aux; 362 struct wsemuldisplaydev_attach_args aa; 363 const struct videomode *vmp; 364 usbd_status error; 365 char *devinfop; 366 367 aprint_naive("\n"); 368 aprint_normal("\n"); 369 370 sc->sc_dev = self; 371 sc->sc_udev = uaa->uaa_device; 372 373 devinfop = usbd_devinfo_alloc(sc->sc_udev, 0); 374 aprint_normal_dev(sc->sc_dev, "%s\n", devinfop); 375 usbd_devinfo_free(devinfop); 376 377 /* 378 * Set device configuration descriptor number. 379 */ 380 error = usbd_set_config_no(sc->sc_udev, 1, 0); 381 if (error != USBD_NORMAL_COMPLETION) { 382 aprint_error_dev(self, "failed to set configuration" 383 ", err=%s\n", usbd_errstr(error)); 384 return; 385 } 386 387 /* 388 * Create device handle to interface descriptor. 389 */ 390 error = usbd_device2interface_handle(sc->sc_udev, 0, &sc->sc_iface); 391 if (error != USBD_NORMAL_COMPLETION) 392 return; 393 394 /* 395 * Open bulk TX pipe. 396 */ 397 error = usbd_open_pipe(sc->sc_iface, 1, USBD_EXCLUSIVE_USE, 398 &sc->sc_tx_pipeh); 399 if (error != USBD_NORMAL_COMPLETION) 400 return; 401 402 /* 403 * Allocate bulk command queue. 404 */ 405 #ifdef UDL_EVENT_COUNTERS 406 evcnt_attach_dynamic(&sc->sc_ev_cmdq_get, EVCNT_TYPE_MISC, NULL, 407 device_xname(sc->sc_dev), "udl_cmdq_get"); 408 evcnt_attach_dynamic(&sc->sc_ev_cmdq_put, EVCNT_TYPE_MISC, NULL, 409 device_xname(sc->sc_dev), "udl_cmdq_put"); 410 evcnt_attach_dynamic(&sc->sc_ev_cmdq_wait, EVCNT_TYPE_MISC, NULL, 411 device_xname(sc->sc_dev), "udl_cmdq_wait"); 412 evcnt_attach_dynamic(&sc->sc_ev_cmdq_timeout, EVCNT_TYPE_MISC, NULL, 413 device_xname(sc->sc_dev), "udl_cmdq_timeout"); 414 #endif 415 416 if (udl_cmdq_alloc(sc) != 0) 417 return; 418 419 cv_init(&sc->sc_cv, device_xname(sc->sc_dev)); 420 mutex_init(&sc->sc_mtx, MUTEX_DEFAULT, IPL_TTY); /* XXX for tty_lock */ 421 422 if ((sc->sc_cmd_cur = udl_cmdq_get(sc)) == NULL) 423 return; 424 UDL_CMD_BUFINIT(sc); 425 426 /* 427 * Initialize chip. 428 */ 429 if (udl_init(sc) != 0) 430 return; 431 432 udl_read_edid(sc); 433 434 /* 435 * Initialize resolution. 436 */ 437 #ifndef UDL_VIDEOMODE 438 if (sc->sc_ei.edid_nmodes != 0 && 439 sc->sc_ei.edid_preferred_mode != NULL) 440 vmp = sc->sc_ei.edid_preferred_mode; 441 else 442 #define UDL_VIDEOMODE "640x480x60" 443 #endif 444 vmp = udl_videomode_lookup(UDL_VIDEOMODE); 445 446 if (vmp == NULL) 447 return; 448 449 sc->sc_width = vmp->hdisplay; 450 sc->sc_height = vmp->vdisplay; 451 sc->sc_offscreen = sc->sc_height * 3 / 2; 452 sc->sc_depth = 16; 453 454 if (udl_set_resolution(sc, vmp) != 0) 455 return; 456 457 sc->sc_defaultscreen.name = "default"; 458 sc->sc_screens[0] = &sc->sc_defaultscreen; 459 sc->sc_screenlist.nscreens = 1; 460 sc->sc_screenlist.screens = sc->sc_screens; 461 462 /* 463 * Set initial wsdisplay emulation mode. 464 */ 465 sc->sc_mode = WSDISPLAYIO_MODE_EMUL; 466 467 /* 468 * Attach wsdisplay. 469 */ 470 aa.console = 0; 471 aa.scrdata = &sc->sc_screenlist; 472 aa.accessops = &udl_accessops; 473 aa.accesscookie = sc; 474 475 sc->sc_wsdisplay = 476 config_found(sc->sc_dev, &aa, wsemuldisplaydevprint); 477 478 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, sc->sc_dev); 479 480 mutex_init(&sc->sc_thread_mtx, MUTEX_DEFAULT, IPL_NONE); 481 cv_init(&sc->sc_thread_cv, "udlcv"); 482 sc->sc_dying = false; 483 sc->sc_thread_stop = true; 484 kthread_create(PRI_BIO, KTHREAD_MPSAFE | KTHREAD_MUSTJOIN, NULL, 485 udl_update_thread, sc, &sc->sc_thread, "udlupd"); 486 } 487 488 static int 489 udl_detach(device_t self, int flags) 490 { 491 struct udl_softc *sc = device_private(self); 492 493 /* 494 * Close bulk TX pipe. 495 */ 496 if (sc->sc_tx_pipeh != NULL) { 497 usbd_abort_pipe(sc->sc_tx_pipeh); 498 } 499 500 /* 501 * Free command xfer buffers. 502 */ 503 udl_cmdq_flush(sc); 504 udl_cmdq_free(sc); 505 506 if (sc->sc_tx_pipeh != NULL) { 507 usbd_close_pipe(sc->sc_tx_pipeh); 508 } 509 510 /* 511 * Free Huffman table. 512 */ 513 udl_comp_unload(sc); 514 515 /* 516 * Free framebuffer memory. 517 */ 518 udl_fbmem_free(sc); 519 520 mutex_enter(&sc->sc_thread_mtx); 521 sc->sc_dying = true; 522 cv_broadcast(&sc->sc_thread_cv); 523 mutex_exit(&sc->sc_thread_mtx); 524 kthread_join(sc->sc_thread); 525 526 cv_destroy(&sc->sc_cv); 527 mutex_destroy(&sc->sc_mtx); 528 cv_destroy(&sc->sc_thread_cv); 529 mutex_destroy(&sc->sc_thread_mtx); 530 531 /* 532 * Detach wsdisplay. 533 */ 534 if (sc->sc_wsdisplay != NULL) 535 config_detach(sc->sc_wsdisplay, DETACH_FORCE); 536 537 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, sc->sc_dev); 538 539 #ifdef UDL_EVENT_COUNTERS 540 evcnt_detach(&sc->sc_ev_cmdq_get); 541 evcnt_detach(&sc->sc_ev_cmdq_put); 542 evcnt_detach(&sc->sc_ev_cmdq_wait); 543 evcnt_detach(&sc->sc_ev_cmdq_timeout); 544 #endif 545 546 return 0; 547 } 548 549 static int 550 udl_ioctl(void *v, void *vs, u_long cmd, void *data, int flag, struct lwp *l) 551 { 552 struct udl_softc *sc = v; 553 #ifdef notyet 554 struct udl_ioctl_damage *d; 555 #endif 556 struct wsdisplay_fbinfo *wdf; 557 u_int mode; 558 559 switch (cmd) { 560 case WSDISPLAYIO_GTYPE: 561 *(u_int *)data = WSDISPLAY_TYPE_DL; 562 return 0; 563 564 case WSDISPLAYIO_GINFO: 565 wdf = (struct wsdisplay_fbinfo *)data; 566 wdf->height = sc->sc_height; 567 wdf->width = sc->sc_width; 568 wdf->depth = sc->sc_depth; 569 wdf->cmsize = 0; 570 return 0; 571 572 case WSDISPLAYIO_GVIDEO: 573 *(u_int *)data = sc->sc_blank; 574 return 0; 575 576 case WSDISPLAYIO_SVIDEO: 577 mode = *(u_int *)data; 578 if (mode == sc->sc_blank) 579 return 0; 580 switch (mode) { 581 case WSDISPLAYIO_VIDEO_OFF: 582 udl_startstop(sc, true); 583 udl_blank(sc, 1); 584 break; 585 case WSDISPLAYIO_VIDEO_ON: 586 udl_blank(sc, 0); 587 break; 588 default: 589 return EINVAL; 590 } 591 if (UDL_CMD_BUFSIZE(sc) > 0) 592 udl_cmd_send_async(sc); 593 udl_cmdq_flush(sc); 594 sc->sc_blank = mode; 595 return 0; 596 597 case WSDISPLAYIO_SMODE: 598 mode = *(u_int *)data; 599 if (mode == sc->sc_mode) 600 return 0; 601 switch (mode) { 602 case WSDISPLAYIO_MODE_EMUL: 603 udl_startstop(sc, true); 604 /* clear screen */ 605 udl_fill_rect(sc, 0, 0, 0, sc->sc_width, 606 sc->sc_height); 607 if (UDL_CMD_BUFSIZE(sc) > 0) 608 udl_cmd_send_async(sc); 609 udl_cmdq_flush(sc); 610 udl_comp_unload(sc); 611 break; 612 case WSDISPLAYIO_MODE_DUMBFB: 613 if (UDL_CMD_BUFSIZE(sc) > 0) 614 udl_cmd_send_async(sc); 615 udl_cmdq_flush(sc); 616 udl_comp_load(sc); 617 udl_startstop(sc, false); 618 break; 619 default: 620 return EINVAL; 621 } 622 sc->sc_mode = mode; 623 return 0; 624 625 case WSDISPLAYIO_LINEBYTES: 626 *(u_int *)data = sc->sc_width * (sc->sc_depth / 8); 627 return 0; 628 629 #ifdef notyet 630 /* 631 * XXX 632 * OpenBSD allows device specific ioctl()s and use this 633 * UDLIO_DAMAGE for the damage extension ops of X servers. 634 * Before blindly pulling such interfaces, probably we should 635 * discuss how such devices should be handled which have 636 * in-direct framebuffer memories that should be transfered 637 * per updated rectangle regions via MI wscons APIs. 638 */ 639 case UDLIO_DAMAGE: 640 d = (struct udl_ioctl_damage *)data; 641 d->status = UDLIO_STATUS_OK; 642 if (sc->sc_flags & UDL_COMPRDY) 643 udl_draw_rect_comp(sc, d); 644 else 645 udl_draw_rect(sc, d); 646 return 0; 647 #endif 648 } 649 650 return EPASSTHROUGH; 651 } 652 653 static paddr_t 654 udl_mmap(void *v, void *vs, off_t off, int prot) 655 { 656 struct udl_softc *sc = v; 657 vaddr_t vaddr; 658 paddr_t paddr; 659 bool rv __diagused; 660 661 if (off < 0 || off > roundup2(UDL_FBMEM_SIZE(sc), PAGE_SIZE)) 662 return -1; 663 664 /* allocate framebuffer memory */ 665 if (udl_fbmem_alloc(sc) != 0) 666 return -1; 667 668 udl_startstop(sc, false); 669 670 vaddr = (vaddr_t)sc->sc_fbmem + off; 671 rv = pmap_extract(pmap_kernel(), vaddr, &paddr); 672 KASSERT(rv); 673 paddr += vaddr & PGOFSET; 674 675 /* XXX we need MI paddr_t -> mmap cookie API */ 676 #if defined(__alpha__) 677 #define PTOMMAP(paddr) alpha_btop((char *)paddr) 678 #elif defined(__arm__) 679 #define PTOMMAP(paddr) arm_btop((u_long)paddr) 680 #elif defined(__hppa__) 681 #define PTOMMAP(paddr) btop((u_long)paddr) 682 #elif defined(__i386__) || defined(__x86_64__) 683 #define PTOMMAP(paddr) x86_btop(paddr) 684 #elif defined(__m68k__) 685 #define PTOMMAP(paddr) m68k_btop((char *)paddr) 686 #elif defined(__mips__) 687 #define PTOMMAP(paddr) mips_btop(paddr) 688 #elif defined(__powerpc__) 689 #define PTOMMAP(paddr) (paddr) 690 #elif defined(__sh__) 691 #define PTOMMAP(paddr) sh3_btop(paddr) 692 #elif defined(__sparc__) 693 #define PTOMMAP(paddr) (paddr) 694 #elif defined(__sparc64__) 695 #define PTOMMAP(paddr) atop(paddr) 696 #elif defined(__vax__) 697 #define PTOMMAP(paddr) btop((u_int)paddr) 698 #endif 699 700 return PTOMMAP(paddr); 701 } 702 703 static int 704 udl_alloc_screen(void *v, const struct wsscreen_descr *type, 705 void **cookiep, int *curxp, int *curyp, long *attrp) 706 { 707 struct udl_softc *sc = v; 708 709 if (sc->sc_nscreens > 0) 710 return ENOMEM; 711 712 /* 713 * Initialize rasops. 714 */ 715 sc->sc_ri.ri_depth = sc->sc_depth; 716 sc->sc_ri.ri_bits = NULL; 717 sc->sc_ri.ri_width = sc->sc_width; 718 sc->sc_ri.ri_height = sc->sc_height; 719 sc->sc_ri.ri_stride = sc->sc_width * (sc->sc_depth / 8); 720 sc->sc_ri.ri_hw = sc; 721 sc->sc_ri.ri_flg = 0; 722 723 if (sc->sc_depth == 16) { 724 sc->sc_ri.ri_rnum = 5; 725 sc->sc_ri.ri_gnum = 6; 726 sc->sc_ri.ri_bnum = 5; 727 sc->sc_ri.ri_rpos = 11; 728 sc->sc_ri.ri_gpos = 5; 729 sc->sc_ri.ri_bpos = 0; 730 } 731 732 rasops_init(&sc->sc_ri, sc->sc_height / 8, sc->sc_width / 8); 733 734 sc->sc_ri.ri_ops.cursor = udl_cursor; 735 sc->sc_ri.ri_ops.putchar = udl_putchar; 736 sc->sc_ri.ri_ops.copycols = udl_copycols; 737 sc->sc_ri.ri_ops.erasecols = udl_erasecols; 738 sc->sc_ri.ri_ops.copyrows = udl_copyrows; 739 sc->sc_ri.ri_ops.eraserows = udl_eraserows; 740 741 sc->sc_ri.ri_ops.allocattr(&sc->sc_ri, 0, 0, 0, attrp); 742 743 sc->sc_defaultscreen.ncols = sc->sc_ri.ri_cols; 744 sc->sc_defaultscreen.nrows = sc->sc_ri.ri_rows; 745 sc->sc_defaultscreen.textops = &sc->sc_ri.ri_ops; 746 sc->sc_defaultscreen.fontwidth = sc->sc_ri.ri_font->fontwidth; 747 sc->sc_defaultscreen.fontheight = sc->sc_ri.ri_font->fontheight; 748 sc->sc_defaultscreen.capabilities = sc->sc_ri.ri_caps; 749 750 *cookiep = &sc->sc_ri; 751 *curxp = 0; 752 *curyp = 0; 753 754 sc->sc_nscreens++; 755 756 return 0; 757 } 758 759 static void 760 udl_free_screen(void *v, void *cookie) 761 { 762 struct udl_softc *sc = v; 763 764 sc->sc_nscreens--; 765 } 766 767 static int 768 udl_show_screen(void *v, void *cookie, int waitok, 769 void (*cb)(void *, int, int), void *cbarg) 770 { 771 772 return 0; 773 } 774 775 static inline void 776 udl_cmd_add_decomptable(struct udl_softc *sc, uint8_t *buf, int len) 777 { 778 779 udl_cmd_add_2(sc, (UDL_BULK_SOC << 8) | UDL_BULK_CMD_DECOMP); 780 udl_cmd_add_4(sc, 0x263871cd); /* magic number */ 781 udl_cmd_add_4(sc, 0x00000200); /* 512 byte chunks */ 782 memcpy(sc->sc_cmd_buf, buf, len); 783 sc->sc_cmd_buf += len; 784 } 785 786 static void 787 udl_comp_load(struct udl_softc *sc) 788 { 789 struct udl_huffman *h; 790 uint8_t *decomp; 791 size_t decomp_size; 792 int error, i; 793 794 if (!(sc->sc_flags & UDL_DECOMPRDY)) { 795 error = firmware_load("udl", "udl-decomp", &decomp, 796 &decomp_size); 797 if (error != 0) { 798 aprint_error_dev(sc->sc_dev, 799 "error %d, could not read decomp table %s!\n", 800 error, "udl-decomp"); 801 return; 802 } 803 udl_cmd_add_decomptable(sc, decomp, decomp_size); 804 firmware_free(decomp, decomp_size); 805 if (udl_cmd_send(sc) != 0) 806 return; 807 sc->sc_flags |= UDL_DECOMPRDY; 808 } 809 810 if (!(sc->sc_flags & UDL_COMPRDY)) { 811 error = firmware_load("udl", "udl-comp", &sc->sc_huffman, 812 &sc->sc_huffman_size); 813 if (error != 0) { 814 aprint_error_dev(sc->sc_dev, 815 "error %d, could not read huffman table %s!\n", 816 error, "udl-comp"); 817 return; 818 } 819 h = (struct udl_huffman *)sc->sc_huffman; 820 for (i = 0; i < UDL_HUFFMAN_RECORDS; i++) 821 h[i].bit_pattern = be32toh(h[i].bit_pattern); 822 sc->sc_huffman_base = sc->sc_huffman + UDL_HUFFMAN_BASE; 823 sc->sc_flags |= UDL_COMPRDY; 824 } 825 } 826 827 static void 828 udl_comp_unload(struct udl_softc *sc) 829 { 830 831 if (sc->sc_flags & UDL_COMPRDY) { 832 firmware_free(sc->sc_huffman, sc->sc_huffman_size); 833 sc->sc_huffman = NULL; 834 sc->sc_huffman_size = 0; 835 sc->sc_flags &= ~UDL_COMPRDY; 836 } 837 } 838 839 static int 840 udl_fbmem_alloc(struct udl_softc *sc) 841 { 842 843 mutex_enter(&sc->sc_thread_mtx); 844 if (sc->sc_fbmem == NULL) 845 sc->sc_fbmem = kmem_zalloc(UDL_FBMEM_SIZE(sc), KM_SLEEP); 846 if (sc->sc_fbmem_prev == NULL) 847 sc->sc_fbmem_prev = kmem_zalloc(UDL_FBMEM_SIZE(sc), KM_SLEEP); 848 mutex_exit(&sc->sc_thread_mtx); 849 850 return 0; 851 } 852 853 static void 854 udl_fbmem_free(struct udl_softc *sc) 855 { 856 857 mutex_enter(&sc->sc_thread_mtx); 858 if (sc->sc_fbmem != NULL) { 859 kmem_free(sc->sc_fbmem, UDL_FBMEM_SIZE(sc)); 860 sc->sc_fbmem = NULL; 861 } 862 if (sc->sc_fbmem_prev != NULL) { 863 kmem_free(sc->sc_fbmem_prev, UDL_FBMEM_SIZE(sc)); 864 sc->sc_fbmem_prev = NULL; 865 } 866 mutex_exit(&sc->sc_thread_mtx); 867 } 868 869 static int 870 udl_cmdq_alloc(struct udl_softc *sc) 871 { 872 struct udl_cmdq *cmdq; 873 int i; 874 875 TAILQ_INIT(&sc->sc_freecmd); 876 TAILQ_INIT(&sc->sc_xfercmd); 877 878 for (i = 0; i < UDL_NCMDQ; i++) { 879 cmdq = &sc->sc_cmdq[i]; 880 881 cmdq->cq_sc = sc; 882 883 int err = usbd_create_xfer(sc->sc_tx_pipeh, 884 UDL_CMD_BUFFER_SIZE, 0, 0, &cmdq->cq_xfer); 885 if (err) { 886 aprint_error_dev(sc->sc_dev, 887 "%s: can't allocate xfer handle!\n", __func__); 888 goto error; 889 } 890 891 cmdq->cq_buf = usbd_get_buffer(cmdq->cq_xfer); 892 893 TAILQ_INSERT_TAIL(&sc->sc_freecmd, cmdq, cq_chain); 894 } 895 896 return 0; 897 898 error: 899 udl_cmdq_free(sc); 900 return -1; 901 } 902 903 static void 904 udl_cmdq_free(struct udl_softc *sc) 905 { 906 struct udl_cmdq *cmdq; 907 int i; 908 909 for (i = 0; i < UDL_NCMDQ; i++) { 910 cmdq = &sc->sc_cmdq[i]; 911 912 if (cmdq->cq_xfer != NULL) { 913 usbd_destroy_xfer(cmdq->cq_xfer); 914 cmdq->cq_xfer = NULL; 915 cmdq->cq_buf = NULL; 916 } 917 } 918 } 919 920 static struct udl_cmdq * 921 udl_cmdq_get(struct udl_softc *sc) 922 { 923 struct udl_cmdq *cmdq; 924 925 cmdq = TAILQ_FIRST(&sc->sc_freecmd); 926 if (cmdq != NULL) { 927 TAILQ_REMOVE(&sc->sc_freecmd, cmdq, cq_chain); 928 UDL_EVCNT_INCR(&sc->sc_ev_cmdq_get); 929 } 930 931 return cmdq; 932 } 933 934 static void 935 udl_cmdq_put(struct udl_softc *sc, struct udl_cmdq *cmdq) 936 { 937 938 TAILQ_INSERT_TAIL(&sc->sc_freecmd, cmdq, cq_chain); 939 UDL_EVCNT_INCR(&sc->sc_ev_cmdq_put); 940 } 941 942 static void 943 udl_cmdq_flush(struct udl_softc *sc) 944 { 945 946 mutex_enter(&sc->sc_mtx); 947 while (TAILQ_FIRST(&sc->sc_xfercmd) != NULL) 948 cv_wait(&sc->sc_cv, &sc->sc_mtx); 949 mutex_exit(&sc->sc_mtx); 950 } 951 952 static void 953 udl_cursor(void *cookie, int on, int row, int col) 954 { 955 struct rasops_info *ri = cookie; 956 struct udl_softc *sc = ri->ri_hw; 957 int x, y, width, height; 958 959 if (ri->ri_flg & RI_CURSOR) 960 udl_restore_char(ri); 961 962 ri->ri_crow = row; 963 ri->ri_ccol = col; 964 965 if (on != 0) { 966 ri->ri_flg |= RI_CURSOR; 967 968 x = col * ri->ri_font->fontwidth; 969 y = row * ri->ri_font->fontheight; 970 width = ri->ri_font->fontwidth; 971 height = ri->ri_font->fontheight; 972 973 /* save the last character block to off-screen */ 974 udl_copy_rect(sc, x, y, 0, sc->sc_offscreen, width, height); 975 976 /* draw cursor */ 977 udl_fill_rect(sc, 0xffff, x, y, width, 1); 978 udl_fill_rect(sc, 0xffff, x, y + 1, 1, height - 2); 979 udl_fill_rect(sc, 0xffff, x + width - 1, y + 1, 1, height - 2); 980 udl_fill_rect(sc, 0xffff, x, y + height - 1, width, 1); 981 982 udl_cmd_send_async(sc); 983 } else 984 ri->ri_flg &= ~RI_CURSOR; 985 } 986 987 static void 988 udl_putchar(void *cookie, int row, int col, u_int uc, long attr) 989 { 990 struct rasops_info *ri = cookie; 991 struct udl_softc *sc = ri->ri_hw; 992 uint16_t rgb16[2]; 993 int fg, bg, underline, x, y, width, height; 994 995 rasops_unpack_attr(attr, &fg, &bg, &underline); 996 rgb16[1] = (uint16_t)ri->ri_devcmap[fg]; 997 rgb16[0] = (uint16_t)ri->ri_devcmap[bg]; 998 999 x = col * ri->ri_font->fontwidth; 1000 y = row * ri->ri_font->fontheight; 1001 width = ri->ri_font->fontwidth; 1002 height = ri->ri_font->fontheight; 1003 1004 if (uc == ' ') { 1005 /* 1006 * Writting a block for the space character instead rendering 1007 * it from font bits is more slim. 1008 */ 1009 udl_fill_rect(sc, rgb16[0], x, y, width, height); 1010 } else { 1011 /* render a character from font bits */ 1012 udl_draw_char(ri, rgb16, uc, x, y); 1013 } 1014 1015 if (underline != 0) 1016 udl_fill_rect(sc, rgb16[1], x, y + height - 1, width, 1); 1017 1018 #if 0 1019 udl_cmd_send_async(sc); 1020 #endif 1021 } 1022 1023 static void 1024 udl_copycols(void *cookie, int row, int src, int dst, int num) 1025 { 1026 struct rasops_info *ri = cookie; 1027 struct udl_softc *sc = ri->ri_hw; 1028 int sx, dx, y, width, height; 1029 1030 sx = src * ri->ri_font->fontwidth; 1031 dx = dst * ri->ri_font->fontwidth; 1032 y = row * ri->ri_font->fontheight; 1033 width = num * ri->ri_font->fontwidth; 1034 height = ri->ri_font->fontheight; 1035 1036 /* copy row block to off-screen first to fix overlay-copy problem */ 1037 udl_copy_rect(sc, sx, y, 0, sc->sc_offscreen, width, height); 1038 1039 /* copy row block back from off-screen now */ 1040 udl_copy_rect(sc, 0, sc->sc_offscreen, dx, y, width, height); 1041 #if 0 1042 udl_cmd_send_async(sc); 1043 #endif 1044 } 1045 1046 static void 1047 udl_erasecols(void *cookie, int row, int col, int num, long attr) 1048 { 1049 struct rasops_info *ri = cookie; 1050 struct udl_softc *sc = ri->ri_hw; 1051 uint16_t rgb16; 1052 int fg, bg, x, y, width, height; 1053 1054 rasops_unpack_attr(attr, &fg, &bg, NULL); 1055 rgb16 = (uint16_t)ri->ri_devcmap[bg]; 1056 1057 x = col * ri->ri_font->fontwidth; 1058 y = row * ri->ri_font->fontheight; 1059 width = num * ri->ri_font->fontwidth; 1060 height = ri->ri_font->fontheight; 1061 1062 udl_fill_rect(sc, rgb16, x, y, width, height); 1063 #if 0 1064 udl_cmd_send_async(sc); 1065 #endif 1066 } 1067 1068 static void 1069 udl_copyrows(void *cookie, int src, int dst, int num) 1070 { 1071 struct rasops_info *ri = cookie; 1072 struct udl_softc *sc = ri->ri_hw; 1073 int sy, ey, dy, width, height; 1074 1075 width = ri->ri_emuwidth; 1076 height = ri->ri_font->fontheight; 1077 1078 if (dst < src) { 1079 sy = src * height; 1080 ey = (src + num) * height; 1081 dy = dst * height; 1082 1083 while (sy < ey) { 1084 udl_copy_rect(sc, 0, sy, 0, dy, width, height); 1085 sy += height; 1086 dy += height; 1087 } 1088 } else { 1089 sy = (src + num) * height; 1090 ey = src * height; 1091 dy = (dst + num) * height; 1092 1093 while (sy > ey) { 1094 sy -= height; 1095 dy -= height; 1096 udl_copy_rect(sc, 0, sy, 0, dy, width, height); 1097 } 1098 } 1099 #if 0 1100 udl_cmd_send_async(sc); 1101 #endif 1102 } 1103 1104 static void 1105 udl_eraserows(void *cookie, int row, int num, long attr) 1106 { 1107 struct rasops_info *ri = cookie; 1108 struct udl_softc *sc = ri->ri_hw; 1109 uint16_t rgb16; 1110 int fg, bg, y, width, height; 1111 1112 rasops_unpack_attr(attr, &fg, &bg, NULL); 1113 rgb16 = (uint16_t)ri->ri_devcmap[bg]; 1114 1115 y = row * ri->ri_font->fontheight; 1116 width = ri->ri_emuwidth; 1117 height = num * ri->ri_font->fontheight; 1118 1119 udl_fill_rect(sc, rgb16, 0, y, width, height); 1120 #if 0 1121 udl_cmd_send_async(sc); 1122 #endif 1123 } 1124 1125 static void 1126 udl_restore_char(struct rasops_info *ri) 1127 { 1128 struct udl_softc *sc = ri->ri_hw; 1129 int x, y, width, height; 1130 1131 x = ri->ri_ccol * ri->ri_font->fontwidth; 1132 y = ri->ri_crow * ri->ri_font->fontheight; 1133 width = ri->ri_font->fontwidth; 1134 height = ri->ri_font->fontheight; 1135 1136 /* restore the last saved character from off-screen */ 1137 udl_copy_rect(sc, 0, sc->sc_offscreen, x, y, width, height); 1138 } 1139 1140 static void 1141 udl_draw_char(struct rasops_info *ri, uint16_t *rgb16, u_int uc, int x, int y) 1142 { 1143 struct udl_softc *sc = ri->ri_hw; 1144 struct wsdisplay_font *font = ri->ri_font; 1145 uint32_t fontbits; 1146 uint16_t pixels[32]; 1147 uint8_t *fontbase; 1148 int i, soff, eoff; 1149 1150 soff = y * sc->sc_width + x; 1151 eoff = (y + font->fontheight) * sc->sc_width + x; 1152 fontbase = (uint8_t *)font->data + (uc - font->firstchar) * 1153 ri->ri_fontscale; 1154 1155 while (soff < eoff) { 1156 fontbits = 0; 1157 switch (font->stride) { 1158 case 4: 1159 fontbits |= fontbase[3]; 1160 /* FALLTHROUGH */ 1161 case 3: 1162 fontbits |= fontbase[2] << 8; 1163 /* FALLTHROUGH */ 1164 case 2: 1165 fontbits |= fontbase[1] << 16; 1166 /* FALLTHROUGH */ 1167 case 1: 1168 fontbits |= fontbase[0] << 24; 1169 } 1170 fontbase += font->stride; 1171 1172 for (i = 0; i < font->fontwidth; i++) { 1173 pixels[i] = rgb16[(fontbits >> 31) & 1]; 1174 fontbits <<= 1; 1175 } 1176 1177 udl_draw_line(sc, pixels, soff, font->fontwidth); 1178 soff += sc->sc_width; 1179 } 1180 } 1181 1182 static void 1183 udl_copy_rect(struct udl_softc *sc, int sx, int sy, int dx, int dy, int width, 1184 int height) 1185 { 1186 int sbase, soff, ebase, eoff, dbase, doff, width_cur; 1187 1188 sbase = sy * sc->sc_width; 1189 ebase = (sy + height) * sc->sc_width; 1190 dbase = dy * sc->sc_width; 1191 1192 while (width > 0) { 1193 soff = sbase + sx; 1194 eoff = ebase + sx; 1195 doff = dbase + dx; 1196 1197 if (width >= UDL_CMD_WIDTH_MAX) 1198 width_cur = UDL_CMD_WIDTH_MAX; 1199 else 1200 width_cur = width; 1201 1202 while (soff < eoff) { 1203 udl_copy_line(sc, soff, doff, width_cur); 1204 soff += sc->sc_width; 1205 doff += sc->sc_width; 1206 } 1207 1208 sx += width_cur; 1209 dx += width_cur; 1210 width -= width_cur; 1211 } 1212 } 1213 1214 static void 1215 udl_fill_rect(struct udl_softc *sc, uint16_t rgb16, int x, int y, int width, 1216 int height) 1217 { 1218 int sbase, soff, ebase, eoff, width_cur; 1219 1220 sbase = y * sc->sc_width; 1221 ebase = (y + height) * sc->sc_width; 1222 1223 while (width > 0) { 1224 soff = sbase + x; 1225 eoff = ebase + x; 1226 1227 if (width >= UDL_CMD_WIDTH_MAX) 1228 width_cur = UDL_CMD_WIDTH_MAX; 1229 else 1230 width_cur = width; 1231 1232 while (soff < eoff) { 1233 udl_fill_line(sc, rgb16, soff, width_cur); 1234 soff += sc->sc_width; 1235 } 1236 1237 x += width_cur; 1238 width -= width_cur; 1239 } 1240 } 1241 1242 #ifdef notyet 1243 static void 1244 udl_draw_rect(struct udl_softc *sc, struct udl_ioctl_damage *d) 1245 { 1246 int sbase, soff, ebase, eoff, x, y, width, width_cur, height; 1247 1248 x = d->x1; 1249 y = d->y1; 1250 width = d->x2 - d->x1; 1251 height = d->y2 - d->y1; 1252 sbase = y * sc->sc_width; 1253 ebase = (y + height) * sc->sc_width; 1254 1255 while (width > 0) { 1256 soff = sbase + x; 1257 eoff = ebase + x; 1258 1259 if (width >= UDL_CMD_WIDTH_MAX) 1260 width_cur = UDL_CMD_WIDTH_MAX; 1261 else 1262 width_cur = width; 1263 1264 while (soff < eoff) { 1265 udl_draw_line(sc, (uint16_t *)sc->sc_fbmem + soff, 1266 soff, width_cur); 1267 soff += sc->sc_width; 1268 } 1269 1270 x += width_cur; 1271 width -= width_cur; 1272 } 1273 1274 udl_cmd_send_async(sc); 1275 } 1276 1277 static void 1278 udl_draw_rect_comp(struct udl_softc *sc, struct udl_ioctl_damage *d) 1279 { 1280 int soff, eoff, x, y, width, height; 1281 1282 x = d->x1; 1283 y = d->y1; 1284 width = d->x2 - d->x1; 1285 height = d->y2 - d->y1; 1286 soff = y * sc->sc_width + x; 1287 eoff = (y + height) * sc->sc_width + x; 1288 1289 udl_reg_write_1(sc, UDL_REG_SYNC, 0xff); 1290 sc->sc_cmd_cblen = 4; 1291 1292 while (soff < eoff) { 1293 udl_draw_line_comp(sc, (uint16_t *)sc->sc_fbmem + soff, soff, 1294 width); 1295 soff += sc->sc_width; 1296 } 1297 1298 udl_cmd_send_async(sc); 1299 } 1300 #endif 1301 1302 static inline void 1303 udl_copy_line(struct udl_softc *sc, int soff, int doff, int width) 1304 { 1305 1306 if (__predict_false((UDL_CMD_BUFSIZE(sc) + UDL_CMD_COPY_SIZE + 2) > 1307 UDL_CMD_BUFFER_SIZE)) 1308 udl_cmd_send_async(sc); 1309 1310 udl_cmd_add_2(sc, (UDL_BULK_SOC << 8) | UDL_BULK_CMD_FB_COPY16); 1311 udl_cmd_add_4(sc, ((doff * 2) << 8) | (width & 0xff)); 1312 1313 udl_cmd_add_3(sc, soff * 2); 1314 } 1315 1316 static inline void 1317 udl_fill_line(struct udl_softc *sc, uint16_t rgb16, int off, int width) 1318 { 1319 1320 if (__predict_false((UDL_CMD_BUFSIZE(sc) + UDL_CMD_FILL_SIZE + 2) > 1321 UDL_CMD_BUFFER_SIZE)) 1322 udl_cmd_send_async(sc); 1323 1324 udl_cmd_add_2(sc, (UDL_BULK_SOC << 8) | UDL_BULK_CMD_FB_RLE16); 1325 udl_cmd_add_4(sc, ((off * 2) << 8) | (width & 0xff)); 1326 1327 udl_cmd_add_1(sc, width); 1328 udl_cmd_add_2(sc, rgb16); 1329 } 1330 1331 static inline void 1332 udl_draw_line(struct udl_softc *sc, uint16_t *buf, int off, int width) 1333 { 1334 1335 if (__predict_false( 1336 (UDL_CMD_BUFSIZE(sc) + UDL_CMD_DRAW_SIZE(width) + 2) > 1337 UDL_CMD_BUFFER_SIZE)) 1338 udl_cmd_send_async(sc); 1339 1340 udl_cmd_add_2(sc, (UDL_BULK_SOC << 8) | UDL_BULK_CMD_FB_WRITE16); 1341 udl_cmd_add_4(sc, ((off * 2) << 8) | (width & 0xff)); 1342 1343 udl_cmd_add_buf(sc, buf, width); 1344 } 1345 1346 #ifdef notyet 1347 static inline int 1348 udl_cmd_add_buf_comp(struct udl_softc *sc, uint16_t *buf, int width) 1349 { 1350 struct udl_huffman *h; 1351 uint16_t *startp, *endp; 1352 uint32_t bit_pattern; 1353 uint16_t prev; 1354 int16_t diff; 1355 uint8_t bit_count, bit_pos, bit_rem, curlen; 1356 1357 startp = buf; 1358 if (width >= UDL_CMD_WIDTH_MAX) 1359 endp = buf + UDL_CMD_WIDTH_MAX; 1360 else 1361 endp = buf + width; 1362 1363 prev = bit_pos = *sc->sc_cmd_buf = 0; 1364 bit_rem = 8; 1365 1366 /* 1367 * Generate a sub-block with maximal 256 pixels compressed data. 1368 */ 1369 while (buf < endp) { 1370 /* get difference between current and previous pixel */ 1371 diff = *buf - prev; 1372 1373 /* get the huffman difference bit sequence */ 1374 h = (struct udl_huffman *)sc->sc_huffman_base + diff; 1375 bit_count = h->bit_count; 1376 bit_pattern = h->bit_pattern; 1377 1378 curlen = (bit_pos + bit_count + 7) / 8; 1379 if (__predict_false((sc->sc_cmd_cblen + curlen + 1) > 1380 UDL_CMD_COMP_BLOCK_SIZE)) 1381 break; 1382 1383 /* generate one pixel compressed data */ 1384 while (bit_count >= bit_rem) { 1385 *sc->sc_cmd_buf++ |= 1386 (bit_pattern & ((1 << bit_rem) - 1)) << bit_pos; 1387 *sc->sc_cmd_buf = 0; 1388 sc->sc_cmd_cblen++; 1389 bit_count -= bit_rem; 1390 bit_pattern >>= bit_rem; 1391 bit_pos = 0; 1392 bit_rem = 8; 1393 } 1394 1395 if (bit_count > 0) { 1396 *sc->sc_cmd_buf |= 1397 (bit_pattern & ((1 << bit_count) - 1)) << bit_pos; 1398 bit_pos += bit_count; 1399 bit_rem -= bit_count; 1400 } 1401 1402 prev = *buf++; 1403 } 1404 1405 /* 1406 * If we have bits left in our last byte, round up to the next 1407 * byte, so we don't overwrite them. 1408 */ 1409 if (bit_pos > 0) { 1410 sc->sc_cmd_buf++; 1411 sc->sc_cmd_cblen++; 1412 } 1413 1414 /* return how many pixels we have compressed */ 1415 return buf - startp; 1416 } 1417 1418 static inline void 1419 udl_draw_line_comp(struct udl_softc *sc, uint16_t *buf, int off, int width) 1420 { 1421 uint8_t *widthp; 1422 int width_cur; 1423 1424 while (width > 0) { 1425 if (__predict_false( 1426 (sc->sc_cmd_cblen + UDL_CMD_COMP_MIN_SIZE + 1) > 1427 UDL_CMD_COMP_BLOCK_SIZE)) { 1428 if (UDL_CMD_BUFSIZE(sc) < UDL_CMD_COMP_THRESHOLD) { 1429 while (sc->sc_cmd_cblen < 1430 UDL_CMD_COMP_BLOCK_SIZE) { 1431 *sc->sc_cmd_buf++ = 0; 1432 sc->sc_cmd_cblen++; 1433 } 1434 } else 1435 udl_cmd_send_async(sc); 1436 udl_reg_write_1(sc, UDL_REG_SYNC, 0xff); 1437 sc->sc_cmd_cblen = 4; 1438 } 1439 1440 udl_cmd_add_2(sc, (UDL_BULK_SOC << 8) | 1441 (UDL_BULK_CMD_FB_WRITE16 | UDL_BULK_CMD_FB_COMP)); 1442 udl_cmd_add_4(sc, (off * 2) << 8); 1443 1444 widthp = sc->sc_cmd_buf - 1; 1445 1446 sc->sc_cmd_cblen += UDL_CMD_HEADER_SIZE; 1447 1448 width_cur = udl_cmd_add_buf_comp(sc, buf, width); 1449 1450 *widthp = width_cur; 1451 buf += width_cur; 1452 off += width_cur; 1453 width -= width_cur; 1454 } 1455 } 1456 #endif 1457 1458 static int 1459 udl_cmd_send(struct udl_softc *sc) 1460 { 1461 struct udl_cmdq *cmdq; 1462 usbd_status error; 1463 uint32_t len; 1464 1465 cmdq = sc->sc_cmd_cur; 1466 1467 /* mark end of command stack */ 1468 udl_cmd_add_2(sc, (UDL_BULK_SOC << 8) | UDL_BULK_CMD_EOC); 1469 1470 len = UDL_CMD_BUFSIZE(sc); 1471 1472 /* do xfer */ 1473 error = usbd_bulk_transfer(cmdq->cq_xfer, sc->sc_tx_pipeh, 0, 1474 USBD_NO_TIMEOUT, cmdq->cq_buf, &len); 1475 1476 UDL_CMD_BUFINIT(sc); 1477 1478 if (error != USBD_NORMAL_COMPLETION) { 1479 aprint_error_dev(sc->sc_dev, "%s: %s!\n", __func__, 1480 usbd_errstr(error)); 1481 return -1; 1482 } 1483 1484 return 0; 1485 } 1486 1487 static void 1488 udl_cmd_send_async(struct udl_softc *sc) 1489 { 1490 struct udl_cmdq *cmdq; 1491 usbd_status error; 1492 uint32_t len; 1493 1494 #if 1 1495 /* 1496 * XXX 1497 * All tty ops for wsemul are called with tty_lock spin mutex held, 1498 * so we can't call cv_wait(9) here to acquire a free buffer. 1499 * For now, all commands and data for wsemul ops are discarded 1500 * if there is no free command buffer, and then screen text might 1501 * be corrupted on large scroll ops etc. 1502 * 1503 * Probably we have to reorganize the giant tty_lock mutex, or 1504 * change wsdisplay APIs (especially wsdisplaystart()) to return 1505 * a number of actually handled characters as OpenBSD does, but 1506 * the latter one requires whole API changes around rasops(9) etc. 1507 */ 1508 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 1509 if (TAILQ_FIRST(&sc->sc_freecmd) == NULL) { 1510 UDL_CMD_BUFINIT(sc); 1511 return; 1512 } 1513 } 1514 #endif 1515 1516 cmdq = sc->sc_cmd_cur; 1517 1518 /* mark end of command stack */ 1519 udl_cmd_add_2(sc, (UDL_BULK_SOC << 8) | UDL_BULK_CMD_EOC); 1520 1521 len = UDL_CMD_BUFSIZE(sc); 1522 1523 /* do xfer */ 1524 mutex_enter(&sc->sc_mtx); 1525 usbd_setup_xfer(cmdq->cq_xfer, cmdq, cmdq->cq_buf, 1526 len, 0, USBD_NO_TIMEOUT, udl_cmd_send_async_cb); 1527 error = usbd_transfer(cmdq->cq_xfer); 1528 if (error != USBD_NORMAL_COMPLETION && error != USBD_IN_PROGRESS) { 1529 aprint_error_dev(sc->sc_dev, "%s: %s!\n", __func__, 1530 usbd_errstr(error)); 1531 mutex_exit(&sc->sc_mtx); 1532 goto end; 1533 } 1534 1535 TAILQ_INSERT_TAIL(&sc->sc_xfercmd, cmdq, cq_chain); 1536 cmdq = udl_cmdq_get(sc); 1537 mutex_exit(&sc->sc_mtx); 1538 while (cmdq == NULL) { 1539 int err; 1540 UDL_EVCNT_INCR(&sc->sc_ev_cmdq_wait); 1541 mutex_enter(&sc->sc_mtx); 1542 err = cv_timedwait(&sc->sc_cv, &sc->sc_mtx, 1543 mstohz(100) /* XXX is this needed? */); 1544 if (err != 0) { 1545 DPRINTF(("%s: %s: cv timeout (error = %d)\n", 1546 device_xname(sc->sc_dev), __func__, err)); 1547 UDL_EVCNT_INCR(&sc->sc_ev_cmdq_timeout); 1548 } 1549 cmdq = udl_cmdq_get(sc); 1550 mutex_exit(&sc->sc_mtx); 1551 } 1552 sc->sc_cmd_cur = cmdq; 1553 end: 1554 UDL_CMD_BUFINIT(sc); 1555 } 1556 1557 static void 1558 udl_cmd_send_async_cb(struct usbd_xfer *xfer, void * priv, 1559 usbd_status status) 1560 { 1561 struct udl_cmdq *cmdq = priv; 1562 struct udl_softc *sc = cmdq->cq_sc; 1563 1564 if (status != USBD_NORMAL_COMPLETION) { 1565 aprint_error_dev(sc->sc_dev, "%s: %s!\n", __func__, 1566 usbd_errstr(status)); 1567 1568 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) 1569 return; 1570 if (status == USBD_STALLED) 1571 usbd_clear_endpoint_stall_async(sc->sc_tx_pipeh); 1572 } 1573 1574 mutex_enter(&sc->sc_mtx); 1575 TAILQ_REMOVE(&sc->sc_xfercmd, cmdq, cq_chain); 1576 udl_cmdq_put(sc, cmdq); 1577 1578 /* signal xfer op that sleeps for a free xfer buffer */ 1579 cv_signal(&sc->sc_cv); 1580 mutex_exit(&sc->sc_mtx); 1581 } 1582 1583 static int 1584 udl_ctrl_msg(struct udl_softc *sc, uint8_t rt, uint8_t r, uint16_t index, 1585 uint16_t value, uint8_t *buf, uint16_t len) 1586 { 1587 usb_device_request_t req; 1588 usbd_status error; 1589 1590 req.bmRequestType = rt; 1591 req.bRequest = r; 1592 USETW(req.wIndex, index); 1593 USETW(req.wValue, value); 1594 USETW(req.wLength, len); 1595 1596 error = usbd_do_request(sc->sc_udev, &req, buf); 1597 if (error != USBD_NORMAL_COMPLETION) { 1598 aprint_error_dev(sc->sc_dev, "%s: %s!\n", __func__, 1599 usbd_errstr(error)); 1600 return -1; 1601 } 1602 1603 return 0; 1604 } 1605 1606 static int 1607 udl_init(struct udl_softc *sc) 1608 { 1609 static uint8_t key[16] = { 1610 0x57, 0xcd, 0xdc, 0xa7, 0x1c, 0x88, 0x5e, 0x15, 1611 0x60, 0xfe, 0xc6, 0x97, 0x16, 0x3d, 0x47, 0xf2 1612 }; 1613 uint8_t status[4], val; 1614 1615 if (udl_ctrl_msg(sc, UT_READ_VENDOR_DEVICE, UDL_CTRL_CMD_READ_STATUS, 1616 0x0000, 0x0000, status, sizeof(status)) != 0) 1617 return -1; 1618 1619 if (udl_ctrl_msg(sc, UT_READ_VENDOR_DEVICE, UDL_CTRL_CMD_READ_1, 1620 0xc484, 0x0000, &val, 1) != 0) 1621 return -1; 1622 1623 val = 1; 1624 if (udl_ctrl_msg(sc, UT_WRITE_VENDOR_DEVICE, UDL_CTRL_CMD_WRITE_1, 1625 0xc41f, 0x0000, &val, 1) != 0) 1626 return -1; 1627 1628 if (udl_ctrl_msg(sc, UT_WRITE_VENDOR_DEVICE, UDL_CTRL_CMD_SET_KEY, 1629 0x0000, 0x0000, key, sizeof(key)) != 0) 1630 return -1; 1631 1632 val = 0; 1633 if (udl_ctrl_msg(sc, UT_WRITE_VENDOR_DEVICE, UDL_CTRL_CMD_WRITE_1, 1634 0xc40b, 0x0000, &val, 1) != 0) 1635 return -1; 1636 1637 return 0; 1638 } 1639 1640 static void 1641 udl_read_edid(struct udl_softc *sc) 1642 { 1643 uint8_t buf[64], edid[128]; 1644 int offset; 1645 1646 memset(&sc->sc_ei, 0, sizeof(struct edid_info)); 1647 1648 offset = 0; 1649 if (udl_ctrl_msg(sc, UT_READ_VENDOR_DEVICE, UDL_CTRL_CMD_READ_EDID, 1650 0x00a1, (offset << 8), buf, 64) != 0) 1651 return; 1652 if (buf[0] != 0) 1653 return; 1654 memcpy(&edid[offset], &buf[1], 63); 1655 offset += 63; 1656 1657 if (udl_ctrl_msg(sc, UT_READ_VENDOR_DEVICE, UDL_CTRL_CMD_READ_EDID, 1658 0x00a1, (offset << 8), buf, 64) != 0) 1659 return; 1660 if (buf[0] != 0) 1661 return; 1662 memcpy(&edid[offset], &buf[1], 63); 1663 offset += 63; 1664 1665 if (udl_ctrl_msg(sc, UT_READ_VENDOR_DEVICE, UDL_CTRL_CMD_READ_EDID, 1666 0x00a1, (offset << 8), buf, 3) != 0) 1667 return; 1668 if (buf[0] != 0) 1669 return; 1670 memcpy(&edid[offset], &buf[1], 2); 1671 1672 if (edid_parse(edid, &sc->sc_ei) == 0) { 1673 #ifdef UDL_DEBUG 1674 edid_print(&sc->sc_ei); 1675 #endif 1676 } 1677 } 1678 1679 static void 1680 udl_set_address(struct udl_softc *sc, int start16, int stride16, int start8, 1681 int stride8) 1682 { 1683 udl_reg_write_1(sc, UDL_REG_SYNC, 0x00); 1684 udl_reg_write_3(sc, UDL_REG_ADDR_START16, start16); 1685 udl_reg_write_3(sc, UDL_REG_ADDR_STRIDE16, stride16); 1686 udl_reg_write_3(sc, UDL_REG_ADDR_START8, start8); 1687 udl_reg_write_3(sc, UDL_REG_ADDR_STRIDE8, stride8); 1688 udl_reg_write_1(sc, UDL_REG_SYNC, 0xff); 1689 } 1690 1691 static void 1692 udl_blank(struct udl_softc *sc, int blank) 1693 { 1694 1695 if (blank != 0) 1696 udl_reg_write_1(sc, UDL_REG_BLANK, UDL_REG_BLANK_ON); 1697 else 1698 udl_reg_write_1(sc, UDL_REG_BLANK, UDL_REG_BLANK_OFF); 1699 udl_reg_write_1(sc, UDL_REG_SYNC, 0xff); 1700 } 1701 1702 static uint16_t 1703 udl_lfsr(uint16_t count) 1704 { 1705 uint16_t val = 0xffff; 1706 1707 while (count > 0) { 1708 val = (uint16_t)(val << 1) | ((uint16_t)( 1709 (uint16_t)(val << 0) ^ 1710 (uint16_t)(val << 11) ^ 1711 (uint16_t)(val << 13) ^ 1712 (uint16_t)(val << 14) 1713 ) >> 15); 1714 count--; 1715 } 1716 1717 return val; 1718 } 1719 1720 static int 1721 udl_set_resolution(struct udl_softc *sc, const struct videomode *vmp) 1722 { 1723 uint16_t val; 1724 int start16, stride16, start8, stride8; 1725 1726 /* set video memory offsets */ 1727 start16 = 0; 1728 stride16 = sc->sc_width * 2; 1729 start8 = stride16 * sc->sc_height; 1730 stride8 = sc->sc_width; 1731 udl_set_address(sc, start16, stride16, start8, stride8); 1732 1733 /* write resolution values */ 1734 udl_reg_write_1(sc, UDL_REG_SYNC, 0x00); 1735 udl_reg_write_1(sc, UDL_REG_COLORDEPTH, UDL_REG_COLORDEPTH_16); 1736 val = vmp->htotal - vmp->hsync_start; 1737 udl_reg_write_2(sc, UDL_REG_XDISPLAYSTART, udl_lfsr(val)); 1738 val += vmp->hdisplay; 1739 udl_reg_write_2(sc, UDL_REG_XDISPLAYEND, udl_lfsr(val)); 1740 val = vmp->vtotal - vmp->vsync_start; 1741 udl_reg_write_2(sc, UDL_REG_YDISPLAYSTART, udl_lfsr(val)); 1742 val += vmp->vdisplay; 1743 udl_reg_write_2(sc, UDL_REG_YDISPLAYEND, udl_lfsr(val)); 1744 val = vmp->htotal - 1; 1745 udl_reg_write_2(sc, UDL_REG_XENDCOUNT, udl_lfsr(val)); 1746 val = vmp->hsync_end - vmp->hsync_start + 1; 1747 if (vmp->flags & VID_PHSYNC) { 1748 udl_reg_write_2(sc, UDL_REG_HSYNCSTART, udl_lfsr(1)); 1749 udl_reg_write_2(sc, UDL_REG_HSYNCEND, udl_lfsr(val)); 1750 } else { 1751 udl_reg_write_2(sc, UDL_REG_HSYNCSTART, udl_lfsr(val)); 1752 udl_reg_write_2(sc, UDL_REG_HSYNCEND, udl_lfsr(1)); 1753 } 1754 val = vmp->hdisplay; 1755 udl_reg_write_2(sc, UDL_REG_HPIXELS, val); 1756 val = vmp->vtotal; 1757 udl_reg_write_2(sc, UDL_REG_YENDCOUNT, udl_lfsr(val)); 1758 val = vmp->vsync_end - vmp->vsync_start; 1759 if (vmp->flags & VID_PVSYNC) { 1760 udl_reg_write_2(sc, UDL_REG_VSYNCSTART, udl_lfsr(0)); 1761 udl_reg_write_2(sc, UDL_REG_VSYNCEND, udl_lfsr(val)); 1762 } else { 1763 udl_reg_write_2(sc, UDL_REG_VSYNCSTART, udl_lfsr(val)); 1764 udl_reg_write_2(sc, UDL_REG_VSYNCEND, udl_lfsr(0)); 1765 } 1766 val = vmp->vdisplay; 1767 udl_reg_write_2(sc, UDL_REG_VPIXELS, val); 1768 val = vmp->dot_clock / 5; 1769 udl_reg_write_2(sc, UDL_REG_PIXELCLOCK5KHZ, bswap16(val)); 1770 udl_reg_write_1(sc, UDL_REG_SYNC, 0xff); 1771 1772 if (udl_cmd_send(sc) != 0) 1773 return -1; 1774 1775 /* clear screen */ 1776 udl_fill_rect(sc, 0, 0, 0, sc->sc_width, sc->sc_height); 1777 1778 if (udl_cmd_send(sc) != 0) 1779 return -1; 1780 1781 /* show framebuffer content */ 1782 udl_blank(sc, 0); 1783 1784 if (udl_cmd_send(sc) != 0) 1785 return -1; 1786 1787 sc->sc_blank = WSDISPLAYIO_VIDEO_ON; 1788 1789 return 0; 1790 } 1791 1792 static const struct videomode * 1793 udl_videomode_lookup(const char *name) 1794 { 1795 int i; 1796 1797 for (i = 0; i < videomode_count; i++) 1798 if (strcmp(name, videomode_list[i].name) == 0) 1799 return &videomode_list[i]; 1800 1801 return NULL; 1802 } 1803 1804 static void 1805 udl_update_thread(void *v) 1806 { 1807 struct udl_softc *sc = v; 1808 int stride; 1809 #ifdef notyet 1810 bool update = false; 1811 int linecount, x, y; 1812 uint16_t *fb, *fbcopy; 1813 uint8_t *curfb; 1814 #else 1815 uint16_t *fb; 1816 int offs; 1817 #endif 1818 1819 mutex_enter(&sc->sc_thread_mtx); 1820 1821 for (;;) { 1822 stride = min(sc->sc_width, UDL_CMD_WIDTH_MAX - 8); 1823 if (sc->sc_dying == true) { 1824 mutex_exit(&sc->sc_thread_mtx); 1825 kthread_exit(0); 1826 } 1827 1828 if (sc->sc_thread_stop == true || sc->sc_fbmem == NULL) 1829 goto thread_wait; 1830 1831 #ifdef notyet 1832 curfb = kmem_zalloc(UDL_FBMEM_SIZE(sc), KM_SLEEP); 1833 memcpy(curfb, sc->sc_fbmem, sc->sc_height * sc->sc_width * 2); 1834 fb = (uint16_t *)curfb; 1835 fbcopy = (uint16_t *)sc->sc_fbmem_prev; 1836 for (y = 0; y < sc->sc_height; y++) { 1837 linecount = 0; 1838 update = false; 1839 for (x = 0; x < sc->sc_width; x++) { 1840 if (linecount >= stride) { 1841 udl_draw_line(sc, &fb[y * sc->sc_width 1842 + x - linecount], y * sc->sc_width 1843 + x - linecount, linecount); 1844 linecount = 0; 1845 update = false; 1846 } 1847 if (fb[y * sc->sc_width + x] ^ fbcopy[y * 1848 sc->sc_width + x]) { 1849 update = true; 1850 linecount ++; 1851 } else if (update == true) { 1852 udl_draw_line(sc, &fb[y * sc->sc_width 1853 + x - linecount], y * sc->sc_width 1854 + x - linecount, linecount); 1855 linecount = 0; 1856 update = false; 1857 } 1858 } 1859 if (linecount) { 1860 udl_draw_line(sc, &fb[y * sc->sc_width + x - 1861 linecount], y * sc->sc_width + x - 1862 linecount, linecount); 1863 } 1864 } 1865 memcpy(sc->sc_fbmem_prev, curfb, sc->sc_height * sc->sc_width 1866 * 2); 1867 kmem_free(curfb, UDL_FBMEM_SIZE(sc)); 1868 #else 1869 fb = (uint16_t *)sc->sc_fbmem; 1870 for (offs = 0; offs < sc->sc_height * sc->sc_width; offs += stride) 1871 udl_draw_line(sc, &fb[offs], offs, stride); 1872 1873 #endif 1874 1875 kpause("udlslp", false, (40 * hz)/1000 + 1, &sc->sc_thread_mtx); 1876 continue; 1877 1878 thread_wait: 1879 cv_wait(&sc->sc_thread_cv, &sc->sc_thread_mtx); 1880 } 1881 } 1882 1883 static inline void 1884 udl_startstop(struct udl_softc *sc, bool stop) 1885 { 1886 mutex_enter(&sc->sc_thread_mtx); 1887 sc->sc_thread_stop = stop; 1888 if (!stop) 1889 cv_broadcast(&sc->sc_thread_cv); 1890 mutex_exit(&sc->sc_thread_mtx); 1891 } 1892
Indexes created Tue Sep 23 22:09:46 GMT 2025