udl.c revision 1.19
1 /* $NetBSD: udl.c,v 1.19 2016/12/04 10:12:35 skrll 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 1.19 2016/12/04 10:12:35 skrll 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 == NULL) { 847 mutex_exit(&sc->sc_thread_mtx); 848 return -1; 849 } 850 } 851 if (sc->sc_fbmem_prev == NULL) { 852 sc->sc_fbmem_prev = kmem_zalloc(UDL_FBMEM_SIZE(sc), KM_SLEEP); 853 if (sc->sc_fbmem_prev == NULL) { 854 kmem_free(sc->sc_fbmem, UDL_FBMEM_SIZE(sc)); 855 sc->sc_fbmem = NULL; 856 mutex_exit(&sc->sc_thread_mtx); 857 return -1; 858 } 859 } 860 mutex_exit(&sc->sc_thread_mtx); 861 862 return 0; 863 } 864 865 static void 866 udl_fbmem_free(struct udl_softc *sc) 867 { 868 869 mutex_enter(&sc->sc_thread_mtx); 870 if (sc->sc_fbmem != NULL) { 871 kmem_free(sc->sc_fbmem, UDL_FBMEM_SIZE(sc)); 872 sc->sc_fbmem = NULL; 873 } 874 if (sc->sc_fbmem_prev != NULL) { 875 kmem_free(sc->sc_fbmem_prev, UDL_FBMEM_SIZE(sc)); 876 sc->sc_fbmem_prev = NULL; 877 } 878 mutex_exit(&sc->sc_thread_mtx); 879 } 880 881 static int 882 udl_cmdq_alloc(struct udl_softc *sc) 883 { 884 struct udl_cmdq *cmdq; 885 int i; 886 887 TAILQ_INIT(&sc->sc_freecmd); 888 TAILQ_INIT(&sc->sc_xfercmd); 889 890 for (i = 0; i < UDL_NCMDQ; i++) { 891 cmdq = &sc->sc_cmdq[i]; 892 893 cmdq->cq_sc = sc; 894 895 int err = usbd_create_xfer(sc->sc_tx_pipeh, 896 UDL_CMD_BUFFER_SIZE, 0, 0, &cmdq->cq_xfer); 897 if (err) { 898 aprint_error_dev(sc->sc_dev, 899 "%s: can't allocate xfer handle!\n", __func__); 900 goto error; 901 } 902 903 cmdq->cq_buf = usbd_get_buffer(cmdq->cq_xfer); 904 905 TAILQ_INSERT_TAIL(&sc->sc_freecmd, cmdq, cq_chain); 906 } 907 908 return 0; 909 910 error: 911 udl_cmdq_free(sc); 912 return -1; 913 } 914 915 static void 916 udl_cmdq_free(struct udl_softc *sc) 917 { 918 struct udl_cmdq *cmdq; 919 int i; 920 921 for (i = 0; i < UDL_NCMDQ; i++) { 922 cmdq = &sc->sc_cmdq[i]; 923 924 if (cmdq->cq_xfer != NULL) { 925 usbd_destroy_xfer(cmdq->cq_xfer); 926 cmdq->cq_xfer = NULL; 927 cmdq->cq_buf = NULL; 928 } 929 } 930 } 931 932 static struct udl_cmdq * 933 udl_cmdq_get(struct udl_softc *sc) 934 { 935 struct udl_cmdq *cmdq; 936 937 cmdq = TAILQ_FIRST(&sc->sc_freecmd); 938 if (cmdq != NULL) { 939 TAILQ_REMOVE(&sc->sc_freecmd, cmdq, cq_chain); 940 UDL_EVCNT_INCR(&sc->sc_ev_cmdq_get); 941 } 942 943 return cmdq; 944 } 945 946 static void 947 udl_cmdq_put(struct udl_softc *sc, struct udl_cmdq *cmdq) 948 { 949 950 TAILQ_INSERT_TAIL(&sc->sc_freecmd, cmdq, cq_chain); 951 UDL_EVCNT_INCR(&sc->sc_ev_cmdq_put); 952 } 953 954 static void 955 udl_cmdq_flush(struct udl_softc *sc) 956 { 957 958 mutex_enter(&sc->sc_mtx); 959 while (TAILQ_FIRST(&sc->sc_xfercmd) != NULL) 960 cv_wait(&sc->sc_cv, &sc->sc_mtx); 961 mutex_exit(&sc->sc_mtx); 962 } 963 964 static void 965 udl_cursor(void *cookie, int on, int row, int col) 966 { 967 struct rasops_info *ri = cookie; 968 struct udl_softc *sc = ri->ri_hw; 969 int x, y, width, height; 970 971 if (ri->ri_flg & RI_CURSOR) 972 udl_restore_char(ri); 973 974 ri->ri_crow = row; 975 ri->ri_ccol = col; 976 977 if (on != 0) { 978 ri->ri_flg |= RI_CURSOR; 979 980 x = col * ri->ri_font->fontwidth; 981 y = row * ri->ri_font->fontheight; 982 width = ri->ri_font->fontwidth; 983 height = ri->ri_font->fontheight; 984 985 /* save the last character block to off-screen */ 986 udl_copy_rect(sc, x, y, 0, sc->sc_offscreen, width, height); 987 988 /* draw cursor */ 989 udl_fill_rect(sc, 0xffff, x, y, width, 1); 990 udl_fill_rect(sc, 0xffff, x, y + 1, 1, height - 2); 991 udl_fill_rect(sc, 0xffff, x + width - 1, y + 1, 1, height - 2); 992 udl_fill_rect(sc, 0xffff, x, y + height - 1, width, 1); 993 994 udl_cmd_send_async(sc); 995 } else 996 ri->ri_flg &= ~RI_CURSOR; 997 } 998 999 static void 1000 udl_putchar(void *cookie, int row, int col, u_int uc, long attr) 1001 { 1002 struct rasops_info *ri = cookie; 1003 struct udl_softc *sc = ri->ri_hw; 1004 uint16_t rgb16[2]; 1005 int fg, bg, underline, x, y, width, height; 1006 1007 rasops_unpack_attr(attr, &fg, &bg, &underline); 1008 rgb16[1] = (uint16_t)ri->ri_devcmap[fg]; 1009 rgb16[0] = (uint16_t)ri->ri_devcmap[bg]; 1010 1011 x = col * ri->ri_font->fontwidth; 1012 y = row * ri->ri_font->fontheight; 1013 width = ri->ri_font->fontwidth; 1014 height = ri->ri_font->fontheight; 1015 1016 if (uc == ' ') { 1017 /* 1018 * Writting a block for the space character instead rendering 1019 * it from font bits is more slim. 1020 */ 1021 udl_fill_rect(sc, rgb16[0], x, y, width, height); 1022 } else { 1023 /* render a character from font bits */ 1024 udl_draw_char(ri, rgb16, uc, x, y); 1025 } 1026 1027 if (underline != 0) 1028 udl_fill_rect(sc, rgb16[1], x, y + height - 1, width, 1); 1029 1030 #if 0 1031 udl_cmd_send_async(sc); 1032 #endif 1033 } 1034 1035 static void 1036 udl_copycols(void *cookie, int row, int src, int dst, int num) 1037 { 1038 struct rasops_info *ri = cookie; 1039 struct udl_softc *sc = ri->ri_hw; 1040 int sx, dx, y, width, height; 1041 1042 sx = src * ri->ri_font->fontwidth; 1043 dx = dst * ri->ri_font->fontwidth; 1044 y = row * ri->ri_font->fontheight; 1045 width = num * ri->ri_font->fontwidth; 1046 height = ri->ri_font->fontheight; 1047 1048 /* copy row block to off-screen first to fix overlay-copy problem */ 1049 udl_copy_rect(sc, sx, y, 0, sc->sc_offscreen, width, height); 1050 1051 /* copy row block back from off-screen now */ 1052 udl_copy_rect(sc, 0, sc->sc_offscreen, dx, y, width, height); 1053 #if 0 1054 udl_cmd_send_async(sc); 1055 #endif 1056 } 1057 1058 static void 1059 udl_erasecols(void *cookie, int row, int col, int num, long attr) 1060 { 1061 struct rasops_info *ri = cookie; 1062 struct udl_softc *sc = ri->ri_hw; 1063 uint16_t rgb16; 1064 int fg, bg, x, y, width, height; 1065 1066 rasops_unpack_attr(attr, &fg, &bg, NULL); 1067 rgb16 = (uint16_t)ri->ri_devcmap[bg]; 1068 1069 x = col * ri->ri_font->fontwidth; 1070 y = row * ri->ri_font->fontheight; 1071 width = num * ri->ri_font->fontwidth; 1072 height = ri->ri_font->fontheight; 1073 1074 udl_fill_rect(sc, rgb16, x, y, width, height); 1075 #if 0 1076 udl_cmd_send_async(sc); 1077 #endif 1078 } 1079 1080 static void 1081 udl_copyrows(void *cookie, int src, int dst, int num) 1082 { 1083 struct rasops_info *ri = cookie; 1084 struct udl_softc *sc = ri->ri_hw; 1085 int sy, ey, dy, width, height; 1086 1087 width = ri->ri_emuwidth; 1088 height = ri->ri_font->fontheight; 1089 1090 if (dst < src) { 1091 sy = src * height; 1092 ey = (src + num) * height; 1093 dy = dst * height; 1094 1095 while (sy < ey) { 1096 udl_copy_rect(sc, 0, sy, 0, dy, width, height); 1097 sy += height; 1098 dy += height; 1099 } 1100 } else { 1101 sy = (src + num) * height; 1102 ey = src * height; 1103 dy = (dst + num) * height; 1104 1105 while (sy > ey) { 1106 sy -= height; 1107 dy -= height; 1108 udl_copy_rect(sc, 0, sy, 0, dy, width, height); 1109 } 1110 } 1111 #if 0 1112 udl_cmd_send_async(sc); 1113 #endif 1114 } 1115 1116 static void 1117 udl_eraserows(void *cookie, int row, int num, long attr) 1118 { 1119 struct rasops_info *ri = cookie; 1120 struct udl_softc *sc = ri->ri_hw; 1121 uint16_t rgb16; 1122 int fg, bg, y, width, height; 1123 1124 rasops_unpack_attr(attr, &fg, &bg, NULL); 1125 rgb16 = (uint16_t)ri->ri_devcmap[bg]; 1126 1127 y = row * ri->ri_font->fontheight; 1128 width = ri->ri_emuwidth; 1129 height = num * ri->ri_font->fontheight; 1130 1131 udl_fill_rect(sc, rgb16, 0, y, width, height); 1132 #if 0 1133 udl_cmd_send_async(sc); 1134 #endif 1135 } 1136 1137 static void 1138 udl_restore_char(struct rasops_info *ri) 1139 { 1140 struct udl_softc *sc = ri->ri_hw; 1141 int x, y, width, height; 1142 1143 x = ri->ri_ccol * ri->ri_font->fontwidth; 1144 y = ri->ri_crow * ri->ri_font->fontheight; 1145 width = ri->ri_font->fontwidth; 1146 height = ri->ri_font->fontheight; 1147 1148 /* restore the last saved character from off-screen */ 1149 udl_copy_rect(sc, 0, sc->sc_offscreen, x, y, width, height); 1150 } 1151 1152 static void 1153 udl_draw_char(struct rasops_info *ri, uint16_t *rgb16, u_int uc, int x, int y) 1154 { 1155 struct udl_softc *sc = ri->ri_hw; 1156 struct wsdisplay_font *font = ri->ri_font; 1157 uint32_t fontbits; 1158 uint16_t pixels[32]; 1159 uint8_t *fontbase; 1160 int i, soff, eoff; 1161 1162 soff = y * sc->sc_width + x; 1163 eoff = (y + font->fontheight) * sc->sc_width + x; 1164 fontbase = (uint8_t *)font->data + (uc - font->firstchar) * 1165 ri->ri_fontscale; 1166 1167 while (soff < eoff) { 1168 fontbits = 0; 1169 switch (font->stride) { 1170 case 4: 1171 fontbits |= fontbase[3]; 1172 /* FALLTHROUGH */ 1173 case 3: 1174 fontbits |= fontbase[2] << 8; 1175 /* FALLTHROUGH */ 1176 case 2: 1177 fontbits |= fontbase[1] << 16; 1178 /* FALLTHROUGH */ 1179 case 1: 1180 fontbits |= fontbase[0] << 24; 1181 } 1182 fontbase += font->stride; 1183 1184 for (i = 0; i < font->fontwidth; i++) { 1185 pixels[i] = rgb16[(fontbits >> 31) & 1]; 1186 fontbits <<= 1; 1187 } 1188 1189 udl_draw_line(sc, pixels, soff, font->fontwidth); 1190 soff += sc->sc_width; 1191 } 1192 } 1193 1194 static void 1195 udl_copy_rect(struct udl_softc *sc, int sx, int sy, int dx, int dy, int width, 1196 int height) 1197 { 1198 int sbase, soff, ebase, eoff, dbase, doff, width_cur; 1199 1200 sbase = sy * sc->sc_width; 1201 ebase = (sy + height) * sc->sc_width; 1202 dbase = dy * sc->sc_width; 1203 1204 while (width > 0) { 1205 soff = sbase + sx; 1206 eoff = ebase + sx; 1207 doff = dbase + dx; 1208 1209 if (width >= UDL_CMD_WIDTH_MAX) 1210 width_cur = UDL_CMD_WIDTH_MAX; 1211 else 1212 width_cur = width; 1213 1214 while (soff < eoff) { 1215 udl_copy_line(sc, soff, doff, width_cur); 1216 soff += sc->sc_width; 1217 doff += sc->sc_width; 1218 } 1219 1220 sx += width_cur; 1221 dx += width_cur; 1222 width -= width_cur; 1223 } 1224 } 1225 1226 static void 1227 udl_fill_rect(struct udl_softc *sc, uint16_t rgb16, int x, int y, int width, 1228 int height) 1229 { 1230 int sbase, soff, ebase, eoff, width_cur; 1231 1232 sbase = y * sc->sc_width; 1233 ebase = (y + height) * sc->sc_width; 1234 1235 while (width > 0) { 1236 soff = sbase + x; 1237 eoff = ebase + x; 1238 1239 if (width >= UDL_CMD_WIDTH_MAX) 1240 width_cur = UDL_CMD_WIDTH_MAX; 1241 else 1242 width_cur = width; 1243 1244 while (soff < eoff) { 1245 udl_fill_line(sc, rgb16, soff, width_cur); 1246 soff += sc->sc_width; 1247 } 1248 1249 x += width_cur; 1250 width -= width_cur; 1251 } 1252 } 1253 1254 #ifdef notyet 1255 static void 1256 udl_draw_rect(struct udl_softc *sc, struct udl_ioctl_damage *d) 1257 { 1258 int sbase, soff, ebase, eoff, x, y, width, width_cur, height; 1259 1260 x = d->x1; 1261 y = d->y1; 1262 width = d->x2 - d->x1; 1263 height = d->y2 - d->y1; 1264 sbase = y * sc->sc_width; 1265 ebase = (y + height) * sc->sc_width; 1266 1267 while (width > 0) { 1268 soff = sbase + x; 1269 eoff = ebase + x; 1270 1271 if (width >= UDL_CMD_WIDTH_MAX) 1272 width_cur = UDL_CMD_WIDTH_MAX; 1273 else 1274 width_cur = width; 1275 1276 while (soff < eoff) { 1277 udl_draw_line(sc, (uint16_t *)sc->sc_fbmem + soff, 1278 soff, width_cur); 1279 soff += sc->sc_width; 1280 } 1281 1282 x += width_cur; 1283 width -= width_cur; 1284 } 1285 1286 udl_cmd_send_async(sc); 1287 } 1288 1289 static void 1290 udl_draw_rect_comp(struct udl_softc *sc, struct udl_ioctl_damage *d) 1291 { 1292 int soff, eoff, x, y, width, height; 1293 1294 x = d->x1; 1295 y = d->y1; 1296 width = d->x2 - d->x1; 1297 height = d->y2 - d->y1; 1298 soff = y * sc->sc_width + x; 1299 eoff = (y + height) * sc->sc_width + x; 1300 1301 udl_reg_write_1(sc, UDL_REG_SYNC, 0xff); 1302 sc->sc_cmd_cblen = 4; 1303 1304 while (soff < eoff) { 1305 udl_draw_line_comp(sc, (uint16_t *)sc->sc_fbmem + soff, soff, 1306 width); 1307 soff += sc->sc_width; 1308 } 1309 1310 udl_cmd_send_async(sc); 1311 } 1312 #endif 1313 1314 static inline void 1315 udl_copy_line(struct udl_softc *sc, int soff, int doff, int width) 1316 { 1317 1318 if (__predict_false((UDL_CMD_BUFSIZE(sc) + UDL_CMD_COPY_SIZE + 2) > 1319 UDL_CMD_BUFFER_SIZE)) 1320 udl_cmd_send_async(sc); 1321 1322 udl_cmd_add_2(sc, (UDL_BULK_SOC << 8) | UDL_BULK_CMD_FB_COPY16); 1323 udl_cmd_add_4(sc, ((doff * 2) << 8) | (width & 0xff)); 1324 1325 udl_cmd_add_3(sc, soff * 2); 1326 } 1327 1328 static inline void 1329 udl_fill_line(struct udl_softc *sc, uint16_t rgb16, int off, int width) 1330 { 1331 1332 if (__predict_false((UDL_CMD_BUFSIZE(sc) + UDL_CMD_FILL_SIZE + 2) > 1333 UDL_CMD_BUFFER_SIZE)) 1334 udl_cmd_send_async(sc); 1335 1336 udl_cmd_add_2(sc, (UDL_BULK_SOC << 8) | UDL_BULK_CMD_FB_RLE16); 1337 udl_cmd_add_4(sc, ((off * 2) << 8) | (width & 0xff)); 1338 1339 udl_cmd_add_1(sc, width); 1340 udl_cmd_add_2(sc, rgb16); 1341 } 1342 1343 static inline void 1344 udl_draw_line(struct udl_softc *sc, uint16_t *buf, int off, int width) 1345 { 1346 1347 if (__predict_false( 1348 (UDL_CMD_BUFSIZE(sc) + UDL_CMD_DRAW_SIZE(width) + 2) > 1349 UDL_CMD_BUFFER_SIZE)) 1350 udl_cmd_send_async(sc); 1351 1352 udl_cmd_add_2(sc, (UDL_BULK_SOC << 8) | UDL_BULK_CMD_FB_WRITE16); 1353 udl_cmd_add_4(sc, ((off * 2) << 8) | (width & 0xff)); 1354 1355 udl_cmd_add_buf(sc, buf, width); 1356 } 1357 1358 #ifdef notyet 1359 static inline int 1360 udl_cmd_add_buf_comp(struct udl_softc *sc, uint16_t *buf, int width) 1361 { 1362 struct udl_huffman *h; 1363 uint16_t *startp, *endp; 1364 uint32_t bit_pattern; 1365 uint16_t prev; 1366 int16_t diff; 1367 uint8_t bit_count, bit_pos, bit_rem, curlen; 1368 1369 startp = buf; 1370 if (width >= UDL_CMD_WIDTH_MAX) 1371 endp = buf + UDL_CMD_WIDTH_MAX; 1372 else 1373 endp = buf + width; 1374 1375 prev = bit_pos = *sc->sc_cmd_buf = 0; 1376 bit_rem = 8; 1377 1378 /* 1379 * Generate a sub-block with maximal 256 pixels compressed data. 1380 */ 1381 while (buf < endp) { 1382 /* get difference between current and previous pixel */ 1383 diff = *buf - prev; 1384 1385 /* get the huffman difference bit sequence */ 1386 h = (struct udl_huffman *)sc->sc_huffman_base + diff; 1387 bit_count = h->bit_count; 1388 bit_pattern = h->bit_pattern; 1389 1390 curlen = (bit_pos + bit_count + 7) / 8; 1391 if (__predict_false((sc->sc_cmd_cblen + curlen + 1) > 1392 UDL_CMD_COMP_BLOCK_SIZE)) 1393 break; 1394 1395 /* generate one pixel compressed data */ 1396 while (bit_count >= bit_rem) { 1397 *sc->sc_cmd_buf++ |= 1398 (bit_pattern & ((1 << bit_rem) - 1)) << bit_pos; 1399 *sc->sc_cmd_buf = 0; 1400 sc->sc_cmd_cblen++; 1401 bit_count -= bit_rem; 1402 bit_pattern >>= bit_rem; 1403 bit_pos = 0; 1404 bit_rem = 8; 1405 } 1406 1407 if (bit_count > 0) { 1408 *sc->sc_cmd_buf |= 1409 (bit_pattern & ((1 << bit_count) - 1)) << bit_pos; 1410 bit_pos += bit_count; 1411 bit_rem -= bit_count; 1412 } 1413 1414 prev = *buf++; 1415 } 1416 1417 /* 1418 * If we have bits left in our last byte, round up to the next 1419 * byte, so we don't overwrite them. 1420 */ 1421 if (bit_pos > 0) { 1422 sc->sc_cmd_buf++; 1423 sc->sc_cmd_cblen++; 1424 } 1425 1426 /* return how many pixels we have compressed */ 1427 return buf - startp; 1428 } 1429 1430 static inline void 1431 udl_draw_line_comp(struct udl_softc *sc, uint16_t *buf, int off, int width) 1432 { 1433 uint8_t *widthp; 1434 int width_cur; 1435 1436 while (width > 0) { 1437 if (__predict_false( 1438 (sc->sc_cmd_cblen + UDL_CMD_COMP_MIN_SIZE + 1) > 1439 UDL_CMD_COMP_BLOCK_SIZE)) { 1440 if (UDL_CMD_BUFSIZE(sc) < UDL_CMD_COMP_THRESHOLD) { 1441 while (sc->sc_cmd_cblen < 1442 UDL_CMD_COMP_BLOCK_SIZE) { 1443 *sc->sc_cmd_buf++ = 0; 1444 sc->sc_cmd_cblen++; 1445 } 1446 } else 1447 udl_cmd_send_async(sc); 1448 udl_reg_write_1(sc, UDL_REG_SYNC, 0xff); 1449 sc->sc_cmd_cblen = 4; 1450 } 1451 1452 udl_cmd_add_2(sc, (UDL_BULK_SOC << 8) | 1453 (UDL_BULK_CMD_FB_WRITE16 | UDL_BULK_CMD_FB_COMP)); 1454 udl_cmd_add_4(sc, (off * 2) << 8); 1455 1456 widthp = sc->sc_cmd_buf - 1; 1457 1458 sc->sc_cmd_cblen += UDL_CMD_HEADER_SIZE; 1459 1460 width_cur = udl_cmd_add_buf_comp(sc, buf, width); 1461 1462 *widthp = width_cur; 1463 buf += width_cur; 1464 off += width_cur; 1465 width -= width_cur; 1466 } 1467 } 1468 #endif 1469 1470 static int 1471 udl_cmd_send(struct udl_softc *sc) 1472 { 1473 struct udl_cmdq *cmdq; 1474 usbd_status error; 1475 uint32_t len; 1476 1477 cmdq = sc->sc_cmd_cur; 1478 1479 /* mark end of command stack */ 1480 udl_cmd_add_2(sc, (UDL_BULK_SOC << 8) | UDL_BULK_CMD_EOC); 1481 1482 len = UDL_CMD_BUFSIZE(sc); 1483 1484 /* do xfer */ 1485 error = usbd_bulk_transfer(cmdq->cq_xfer, sc->sc_tx_pipeh, 0, 1486 USBD_NO_TIMEOUT, cmdq->cq_buf, &len); 1487 1488 UDL_CMD_BUFINIT(sc); 1489 1490 if (error != USBD_NORMAL_COMPLETION) { 1491 aprint_error_dev(sc->sc_dev, "%s: %s!\n", __func__, 1492 usbd_errstr(error)); 1493 return -1; 1494 } 1495 1496 return 0; 1497 } 1498 1499 static void 1500 udl_cmd_send_async(struct udl_softc *sc) 1501 { 1502 struct udl_cmdq *cmdq; 1503 usbd_status error; 1504 uint32_t len; 1505 1506 #if 1 1507 /* 1508 * XXX 1509 * All tty ops for wsemul are called with tty_lock spin mutex held, 1510 * so we can't call cv_wait(9) here to acquire a free buffer. 1511 * For now, all commands and data for wsemul ops are discarded 1512 * if there is no free command buffer, and then screen text might 1513 * be corrupted on large scroll ops etc. 1514 * 1515 * Probably we have to reorganize the giant tty_lock mutex, or 1516 * change wsdisplay APIs (especially wsdisplaystart()) to return 1517 * a number of actually handled characters as OpenBSD does, but 1518 * the latter one requires whole API changes around rasops(9) etc. 1519 */ 1520 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 1521 if (TAILQ_FIRST(&sc->sc_freecmd) == NULL) { 1522 UDL_CMD_BUFINIT(sc); 1523 return; 1524 } 1525 } 1526 #endif 1527 1528 cmdq = sc->sc_cmd_cur; 1529 1530 /* mark end of command stack */ 1531 udl_cmd_add_2(sc, (UDL_BULK_SOC << 8) | UDL_BULK_CMD_EOC); 1532 1533 len = UDL_CMD_BUFSIZE(sc); 1534 1535 /* do xfer */ 1536 mutex_enter(&sc->sc_mtx); 1537 usbd_setup_xfer(cmdq->cq_xfer, cmdq, cmdq->cq_buf, 1538 len, 0, USBD_NO_TIMEOUT, udl_cmd_send_async_cb); 1539 error = usbd_transfer(cmdq->cq_xfer); 1540 if (error != USBD_NORMAL_COMPLETION && error != USBD_IN_PROGRESS) { 1541 aprint_error_dev(sc->sc_dev, "%s: %s!\n", __func__, 1542 usbd_errstr(error)); 1543 mutex_exit(&sc->sc_mtx); 1544 goto end; 1545 } 1546 1547 TAILQ_INSERT_TAIL(&sc->sc_xfercmd, cmdq, cq_chain); 1548 cmdq = udl_cmdq_get(sc); 1549 mutex_exit(&sc->sc_mtx); 1550 while (cmdq == NULL) { 1551 int err; 1552 UDL_EVCNT_INCR(&sc->sc_ev_cmdq_wait); 1553 mutex_enter(&sc->sc_mtx); 1554 err = cv_timedwait(&sc->sc_cv, &sc->sc_mtx, 1555 mstohz(100) /* XXX is this needed? */); 1556 if (err != 0) { 1557 DPRINTF(("%s: %s: cv timeout (error = %d)\n", 1558 device_xname(sc->sc_dev), __func__, err)); 1559 UDL_EVCNT_INCR(&sc->sc_ev_cmdq_timeout); 1560 } 1561 cmdq = udl_cmdq_get(sc); 1562 mutex_exit(&sc->sc_mtx); 1563 } 1564 sc->sc_cmd_cur = cmdq; 1565 end: 1566 UDL_CMD_BUFINIT(sc); 1567 } 1568 1569 static void 1570 udl_cmd_send_async_cb(struct usbd_xfer *xfer, void * priv, 1571 usbd_status status) 1572 { 1573 struct udl_cmdq *cmdq = priv; 1574 struct udl_softc *sc = cmdq->cq_sc; 1575 1576 if (status != USBD_NORMAL_COMPLETION) { 1577 aprint_error_dev(sc->sc_dev, "%s: %s!\n", __func__, 1578 usbd_errstr(status)); 1579 1580 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) 1581 return; 1582 if (status == USBD_STALLED) 1583 usbd_clear_endpoint_stall_async(sc->sc_tx_pipeh); 1584 } 1585 1586 mutex_enter(&sc->sc_mtx); 1587 TAILQ_REMOVE(&sc->sc_xfercmd, cmdq, cq_chain); 1588 udl_cmdq_put(sc, cmdq); 1589 1590 /* signal xfer op that sleeps for a free xfer buffer */ 1591 cv_signal(&sc->sc_cv); 1592 mutex_exit(&sc->sc_mtx); 1593 } 1594 1595 static int 1596 udl_ctrl_msg(struct udl_softc *sc, uint8_t rt, uint8_t r, uint16_t index, 1597 uint16_t value, uint8_t *buf, uint16_t len) 1598 { 1599 usb_device_request_t req; 1600 usbd_status error; 1601 1602 req.bmRequestType = rt; 1603 req.bRequest = r; 1604 USETW(req.wIndex, index); 1605 USETW(req.wValue, value); 1606 USETW(req.wLength, len); 1607 1608 error = usbd_do_request(sc->sc_udev, &req, buf); 1609 if (error != USBD_NORMAL_COMPLETION) { 1610 aprint_error_dev(sc->sc_dev, "%s: %s!\n", __func__, 1611 usbd_errstr(error)); 1612 return -1; 1613 } 1614 1615 return 0; 1616 } 1617 1618 static int 1619 udl_init(struct udl_softc *sc) 1620 { 1621 static uint8_t key[16] = { 1622 0x57, 0xcd, 0xdc, 0xa7, 0x1c, 0x88, 0x5e, 0x15, 1623 0x60, 0xfe, 0xc6, 0x97, 0x16, 0x3d, 0x47, 0xf2 1624 }; 1625 uint8_t status[4], val; 1626 1627 if (udl_ctrl_msg(sc, UT_READ_VENDOR_DEVICE, UDL_CTRL_CMD_READ_STATUS, 1628 0x0000, 0x0000, status, sizeof(status)) != 0) 1629 return -1; 1630 1631 if (udl_ctrl_msg(sc, UT_READ_VENDOR_DEVICE, UDL_CTRL_CMD_READ_1, 1632 0xc484, 0x0000, &val, 1) != 0) 1633 return -1; 1634 1635 val = 1; 1636 if (udl_ctrl_msg(sc, UT_WRITE_VENDOR_DEVICE, UDL_CTRL_CMD_WRITE_1, 1637 0xc41f, 0x0000, &val, 1) != 0) 1638 return -1; 1639 1640 if (udl_ctrl_msg(sc, UT_WRITE_VENDOR_DEVICE, UDL_CTRL_CMD_SET_KEY, 1641 0x0000, 0x0000, key, sizeof(key)) != 0) 1642 return -1; 1643 1644 val = 0; 1645 if (udl_ctrl_msg(sc, UT_WRITE_VENDOR_DEVICE, UDL_CTRL_CMD_WRITE_1, 1646 0xc40b, 0x0000, &val, 1) != 0) 1647 return -1; 1648 1649 return 0; 1650 } 1651 1652 static void 1653 udl_read_edid(struct udl_softc *sc) 1654 { 1655 uint8_t buf[64], edid[128]; 1656 int offset; 1657 1658 memset(&sc->sc_ei, 0, sizeof(struct edid_info)); 1659 1660 offset = 0; 1661 if (udl_ctrl_msg(sc, UT_READ_VENDOR_DEVICE, UDL_CTRL_CMD_READ_EDID, 1662 0x00a1, (offset << 8), buf, 64) != 0) 1663 return; 1664 if (buf[0] != 0) 1665 return; 1666 memcpy(&edid[offset], &buf[1], 63); 1667 offset += 63; 1668 1669 if (udl_ctrl_msg(sc, UT_READ_VENDOR_DEVICE, UDL_CTRL_CMD_READ_EDID, 1670 0x00a1, (offset << 8), buf, 64) != 0) 1671 return; 1672 if (buf[0] != 0) 1673 return; 1674 memcpy(&edid[offset], &buf[1], 63); 1675 offset += 63; 1676 1677 if (udl_ctrl_msg(sc, UT_READ_VENDOR_DEVICE, UDL_CTRL_CMD_READ_EDID, 1678 0x00a1, (offset << 8), buf, 3) != 0) 1679 return; 1680 if (buf[0] != 0) 1681 return; 1682 memcpy(&edid[offset], &buf[1], 2); 1683 1684 if (edid_parse(edid, &sc->sc_ei) == 0) { 1685 #ifdef UDL_DEBUG 1686 edid_print(&sc->sc_ei); 1687 #endif 1688 } 1689 } 1690 1691 static void 1692 udl_set_address(struct udl_softc *sc, int start16, int stride16, int start8, 1693 int stride8) 1694 { 1695 udl_reg_write_1(sc, UDL_REG_SYNC, 0x00); 1696 udl_reg_write_3(sc, UDL_REG_ADDR_START16, start16); 1697 udl_reg_write_3(sc, UDL_REG_ADDR_STRIDE16, stride16); 1698 udl_reg_write_3(sc, UDL_REG_ADDR_START8, start8); 1699 udl_reg_write_3(sc, UDL_REG_ADDR_STRIDE8, stride8); 1700 udl_reg_write_1(sc, UDL_REG_SYNC, 0xff); 1701 } 1702 1703 static void 1704 udl_blank(struct udl_softc *sc, int blank) 1705 { 1706 1707 if (blank != 0) 1708 udl_reg_write_1(sc, UDL_REG_BLANK, UDL_REG_BLANK_ON); 1709 else 1710 udl_reg_write_1(sc, UDL_REG_BLANK, UDL_REG_BLANK_OFF); 1711 udl_reg_write_1(sc, UDL_REG_SYNC, 0xff); 1712 } 1713 1714 static uint16_t 1715 udl_lfsr(uint16_t count) 1716 { 1717 uint16_t val = 0xffff; 1718 1719 while (count > 0) { 1720 val = (uint16_t)(val << 1) | ((uint16_t)( 1721 (uint16_t)(val << 0) ^ 1722 (uint16_t)(val << 11) ^ 1723 (uint16_t)(val << 13) ^ 1724 (uint16_t)(val << 14) 1725 ) >> 15); 1726 count--; 1727 } 1728 1729 return val; 1730 } 1731 1732 static int 1733 udl_set_resolution(struct udl_softc *sc, const struct videomode *vmp) 1734 { 1735 uint16_t val; 1736 int start16, stride16, start8, stride8; 1737 1738 /* set video memory offsets */ 1739 start16 = 0; 1740 stride16 = sc->sc_width * 2; 1741 start8 = stride16 * sc->sc_height; 1742 stride8 = sc->sc_width; 1743 udl_set_address(sc, start16, stride16, start8, stride8); 1744 1745 /* write resolution values */ 1746 udl_reg_write_1(sc, UDL_REG_SYNC, 0x00); 1747 udl_reg_write_1(sc, UDL_REG_COLORDEPTH, UDL_REG_COLORDEPTH_16); 1748 val = vmp->htotal - vmp->hsync_start; 1749 udl_reg_write_2(sc, UDL_REG_XDISPLAYSTART, udl_lfsr(val)); 1750 val += vmp->hdisplay; 1751 udl_reg_write_2(sc, UDL_REG_XDISPLAYEND, udl_lfsr(val)); 1752 val = vmp->vtotal - vmp->vsync_start; 1753 udl_reg_write_2(sc, UDL_REG_YDISPLAYSTART, udl_lfsr(val)); 1754 val += vmp->vdisplay; 1755 udl_reg_write_2(sc, UDL_REG_YDISPLAYEND, udl_lfsr(val)); 1756 val = vmp->htotal - 1; 1757 udl_reg_write_2(sc, UDL_REG_XENDCOUNT, udl_lfsr(val)); 1758 val = vmp->hsync_end - vmp->hsync_start + 1; 1759 if (vmp->flags & VID_PHSYNC) { 1760 udl_reg_write_2(sc, UDL_REG_HSYNCSTART, udl_lfsr(1)); 1761 udl_reg_write_2(sc, UDL_REG_HSYNCEND, udl_lfsr(val)); 1762 } else { 1763 udl_reg_write_2(sc, UDL_REG_HSYNCSTART, udl_lfsr(val)); 1764 udl_reg_write_2(sc, UDL_REG_HSYNCEND, udl_lfsr(1)); 1765 } 1766 val = vmp->hdisplay; 1767 udl_reg_write_2(sc, UDL_REG_HPIXELS, val); 1768 val = vmp->vtotal; 1769 udl_reg_write_2(sc, UDL_REG_YENDCOUNT, udl_lfsr(val)); 1770 val = vmp->vsync_end - vmp->vsync_start; 1771 if (vmp->flags & VID_PVSYNC) { 1772 udl_reg_write_2(sc, UDL_REG_VSYNCSTART, udl_lfsr(0)); 1773 udl_reg_write_2(sc, UDL_REG_VSYNCEND, udl_lfsr(val)); 1774 } else { 1775 udl_reg_write_2(sc, UDL_REG_VSYNCSTART, udl_lfsr(val)); 1776 udl_reg_write_2(sc, UDL_REG_VSYNCEND, udl_lfsr(0)); 1777 } 1778 val = vmp->vdisplay; 1779 udl_reg_write_2(sc, UDL_REG_VPIXELS, val); 1780 val = vmp->dot_clock / 5; 1781 udl_reg_write_2(sc, UDL_REG_PIXELCLOCK5KHZ, bswap16(val)); 1782 udl_reg_write_1(sc, UDL_REG_SYNC, 0xff); 1783 1784 if (udl_cmd_send(sc) != 0) 1785 return -1; 1786 1787 /* clear screen */ 1788 udl_fill_rect(sc, 0, 0, 0, sc->sc_width, sc->sc_height); 1789 1790 if (udl_cmd_send(sc) != 0) 1791 return -1; 1792 1793 /* show framebuffer content */ 1794 udl_blank(sc, 0); 1795 1796 if (udl_cmd_send(sc) != 0) 1797 return -1; 1798 1799 sc->sc_blank = WSDISPLAYIO_VIDEO_ON; 1800 1801 return 0; 1802 } 1803 1804 static const struct videomode * 1805 udl_videomode_lookup(const char *name) 1806 { 1807 int i; 1808 1809 for (i = 0; i < videomode_count; i++) 1810 if (strcmp(name, videomode_list[i].name) == 0) 1811 return &videomode_list[i]; 1812 1813 return NULL; 1814 } 1815 1816 static void 1817 udl_update_thread(void *v) 1818 { 1819 struct udl_softc *sc = v; 1820 int stride; 1821 #ifdef notyet 1822 bool update = false; 1823 int linecount, x, y; 1824 uint16_t *fb, *fbcopy; 1825 uint8_t *curfb; 1826 #else 1827 uint16_t *fb; 1828 int offs; 1829 #endif 1830 1831 mutex_enter(&sc->sc_thread_mtx); 1832 1833 for (;;) { 1834 stride = min(sc->sc_width, UDL_CMD_WIDTH_MAX - 8); 1835 if (sc->sc_dying == true) { 1836 mutex_exit(&sc->sc_thread_mtx); 1837 kthread_exit(0); 1838 } 1839 1840 if (sc->sc_thread_stop == true || sc->sc_fbmem == NULL) 1841 goto thread_wait; 1842 1843 #ifdef notyet 1844 curfb = kmem_zalloc(UDL_FBMEM_SIZE(sc), KM_SLEEP); 1845 memcpy(curfb, sc->sc_fbmem, sc->sc_height * sc->sc_width * 2); 1846 fb = (uint16_t *)curfb; 1847 fbcopy = (uint16_t *)sc->sc_fbmem_prev; 1848 for (y = 0; y < sc->sc_height; y++) { 1849 linecount = 0; 1850 update = false; 1851 for (x = 0; x < sc->sc_width; x++) { 1852 if (linecount >= stride) { 1853 udl_draw_line(sc, &fb[y * sc->sc_width 1854 + x - linecount], y * sc->sc_width 1855 + x - linecount, linecount); 1856 linecount = 0; 1857 update = false; 1858 } 1859 if (fb[y * sc->sc_width + x] ^ fbcopy[y * 1860 sc->sc_width + x]) { 1861 update = true; 1862 linecount ++; 1863 } else if (update == true) { 1864 udl_draw_line(sc, &fb[y * sc->sc_width 1865 + x - linecount], y * sc->sc_width 1866 + x - linecount, linecount); 1867 linecount = 0; 1868 update = false; 1869 } 1870 } 1871 if (linecount) { 1872 udl_draw_line(sc, &fb[y * sc->sc_width + x - 1873 linecount], y * sc->sc_width + x - 1874 linecount, linecount); 1875 } 1876 } 1877 memcpy(sc->sc_fbmem_prev, curfb, sc->sc_height * sc->sc_width 1878 * 2); 1879 kmem_free(curfb, UDL_FBMEM_SIZE(sc)); 1880 #else 1881 fb = (uint16_t *)sc->sc_fbmem; 1882 for (offs = 0; offs < sc->sc_height * sc->sc_width; offs += stride) 1883 udl_draw_line(sc, &fb[offs], offs, stride); 1884 1885 #endif 1886 1887 kpause("udlslp", false, (40 * hz)/1000 + 1, &sc->sc_thread_mtx); 1888 continue; 1889 1890 thread_wait: 1891 cv_wait(&sc->sc_thread_cv, &sc->sc_thread_mtx); 1892 } 1893 } 1894 1895 static inline void 1896 udl_startstop(struct udl_softc *sc, bool stop) 1897 { 1898 mutex_enter(&sc->sc_thread_mtx); 1899 sc->sc_thread_stop = stop; 1900 if (!stop) 1901 cv_broadcast(&sc->sc_thread_cv); 1902 mutex_exit(&sc->sc_thread_mtx); 1903 } 1904
Indexes created Wed Sep 24 22:09:59 GMT 2025