1 /* $OpenBSD: udl.c,v 1.81 2014/12/09 07:05:06 doug Exp $ */
5 * Copyright (c) 2015 Hans Petter Selasky <hselasky@freebsd.org>
6 * Copyright (c) 2009 Marcus Glocker <mglocker@openbsd.org>
8 * Permission to use, copy, modify, and distribute this software for any
9 * purpose with or without fee is hereby granted, provided that the above
10 * copyright notice and this permission notice appear in all copies.
12 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
13 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
14 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
15 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
16 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
17 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
18 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
22 * Driver for the "DisplayLink DL-120 / DL-160" graphic chips based on
23 * the reversed engineered specifications of Florian Echtler
24 * <floe@butterbrot.org>:
26 * http://floe.butterbrot.org/displaylink/doku.php
29 #include <sys/param.h>
31 #include <sys/callout.h>
33 #include <sys/kernel.h>
35 #include <sys/module.h>
36 #include <sys/mutex.h>
37 #include <sys/condvar.h>
38 #include <sys/sysctl.h>
39 #include <sys/systm.h>
40 #include <sys/consio.h>
43 #include <dev/fb/fbreg.h>
44 #include <dev/syscons/syscons.h>
46 #include <dev/videomode/videomode.h>
47 #include <dev/videomode/edidvar.h>
49 #include <dev/usb/usb.h>
50 #include <dev/usb/usbdi.h>
51 #include <dev/usb/usbdi_util.h>
54 #include <dev/usb/video/udl.h>
60 #define USB_DEBUG_VAR udl_debug
61 #include <dev/usb/usb_debug.h>
63 static SYSCTL_NODE(_hw_usb, OID_AUTO, udl, CTLFLAG_RW, 0, "USB UDL");
66 static int udl_debug = 0;
68 SYSCTL_INT(_hw_usb_udl, OID_AUTO, debug, CTLFLAG_RWTUN,
69 &udl_debug, 0, "Debug level");
72 #define UDL_FPS_MAX 60
75 static int udl_fps = 25;
76 SYSCTL_INT(_hw_usb_udl, OID_AUTO, fps, CTLFLAG_RWTUN,
77 &udl_fps, 0, "Frames Per Second, 1-60");
79 static struct mtx udl_buffer_mtx;
80 static struct udl_buffer_head udl_buffer_head;
82 MALLOC_DEFINE(M_USB_DL, "USB", "USB DisplayLink");
87 static usb_callback_t udl_bulk_write_callback;
89 static device_probe_t udl_probe;
90 static device_attach_t udl_attach;
91 static device_detach_t udl_detach;
92 static fb_getinfo_t udl_fb_getinfo;
93 static fb_setblankmode_t udl_fb_setblankmode;
95 static void udl_select_chip(struct udl_softc *, struct usb_attach_arg *);
96 static int udl_init_chip(struct udl_softc *);
97 static void udl_select_mode(struct udl_softc *);
98 static int udl_init_resolution(struct udl_softc *);
99 static void udl_fbmem_alloc(struct udl_softc *);
100 static int udl_cmd_write_buf_le16(struct udl_softc *, const uint8_t *, uint32_t, uint8_t, int);
101 static int udl_cmd_buf_copy_le16(struct udl_softc *, uint32_t, uint32_t, uint8_t, int);
102 static void udl_cmd_insert_int_1(struct udl_cmd_buf *, uint8_t);
103 static void udl_cmd_insert_int_3(struct udl_cmd_buf *, uint32_t);
104 static void udl_cmd_insert_buf_le16(struct udl_cmd_buf *, const uint8_t *, uint32_t);
105 static void udl_cmd_write_reg_1(struct udl_cmd_buf *, uint8_t, uint8_t);
106 static void udl_cmd_write_reg_3(struct udl_cmd_buf *, uint8_t, uint32_t);
107 static int udl_power_save(struct udl_softc *, int, int);
109 static const struct usb_config udl_config[UDL_N_TRANSFER] = {
110 [UDL_BULK_WRITE_0] = {
112 .endpoint = UE_ADDR_ANY,
113 .direction = UE_DIR_TX,
114 .flags = {.pipe_bof = 1,.force_short_xfer = 1,.ext_buffer = 1,},
115 .bufsize = UDL_CMD_MAX_DATA_SIZE * UDL_CMD_MAX_FRAMES,
116 .callback = &udl_bulk_write_callback,
117 .frames = UDL_CMD_MAX_FRAMES,
118 .timeout = 5000, /* 5 seconds */
120 [UDL_BULK_WRITE_1] = {
122 .endpoint = UE_ADDR_ANY,
123 .direction = UE_DIR_TX,
124 .flags = {.pipe_bof = 1,.force_short_xfer = 1,.ext_buffer = 1,},
125 .bufsize = UDL_CMD_MAX_DATA_SIZE * UDL_CMD_MAX_FRAMES,
126 .callback = &udl_bulk_write_callback,
127 .frames = UDL_CMD_MAX_FRAMES,
128 .timeout = 5000, /* 5 seconds */
135 static devclass_t udl_devclass;
137 static device_method_t udl_methods[] = {
138 DEVMETHOD(device_probe, udl_probe),
139 DEVMETHOD(device_attach, udl_attach),
140 DEVMETHOD(device_detach, udl_detach),
141 DEVMETHOD(fb_getinfo, udl_fb_getinfo),
145 static driver_t udl_driver = {
147 .methods = udl_methods,
148 .size = sizeof(struct udl_softc),
151 DRIVER_MODULE(udl, uhub, udl_driver, udl_devclass, NULL, NULL);
152 MODULE_DEPEND(udl, usb, 1, 1, 1);
153 MODULE_DEPEND(udl, fbd, 1, 1, 1);
154 MODULE_DEPEND(udl, videomode, 1, 1, 1);
155 MODULE_VERSION(udl, 1);
160 static const STRUCT_USB_HOST_ID udl_devs[] = {
161 {USB_VPI(USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_LCD4300U, DL120)},
162 {USB_VPI(USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_LCD8000U, DL120)},
163 {USB_VPI(USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_GUC2020, DL160)},
164 {USB_VPI(USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_LD220, DL165)},
165 {USB_VPI(USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_VCUD60, DL160)},
166 {USB_VPI(USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_DLDVI, DL160)},
167 {USB_VPI(USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_VGA10, DL120)},
168 {USB_VPI(USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_WSDVI, DLUNK)},
169 {USB_VPI(USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_EC008, DL160)},
170 {USB_VPI(USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_HPDOCK, DL160)},
171 {USB_VPI(USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_NL571, DL160)},
172 {USB_VPI(USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_M01061, DL195)},
173 {USB_VPI(USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_NBDOCK, DL165)},
174 {USB_VPI(USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_SWDVI, DLUNK)},
175 {USB_VPI(USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_UM7X0, DL120)},
176 {USB_VPI(USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_CONV, DL160)},
177 {USB_VPI(USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_PLUGABLE, DL160)},
178 {USB_VPI(USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_LUM70, DL125)},
179 {USB_VPI(USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_POLARIS2, DLUNK)},
180 {USB_VPI(USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_LT1421, DLUNK)},
181 {USB_VPI(USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_ITEC, DL165)},
182 {USB_VPI(USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_DVI_19, DL165)},
186 udl_buffer_init(void *arg)
188 mtx_init(&udl_buffer_mtx, "USB", "UDL", MTX_DEF);
189 TAILQ_INIT(&udl_buffer_head);
191 SYSINIT(udl_buffer_init, SI_SUB_LOCK, SI_ORDER_FIRST, udl_buffer_init, NULL);
193 CTASSERT(sizeof(struct udl_buffer) < PAGE_SIZE);
196 udl_buffer_alloc(uint32_t size)
198 struct udl_buffer *buf;
199 mtx_lock(&udl_buffer_mtx);
200 TAILQ_FOREACH(buf, &udl_buffer_head, entry) {
201 if (buf->size == size) {
202 TAILQ_REMOVE(&udl_buffer_head, buf, entry);
206 mtx_unlock(&udl_buffer_mtx);
208 uint8_t *ptr = ((uint8_t *)buf) - size;
209 /* wipe and recycle buffer */
210 memset(ptr, 0, size);
211 /* return buffer pointer */
214 /* allocate new buffer */
215 return (malloc(size + sizeof(*buf), M_USB_DL, M_WAITOK | M_ZERO));
219 udl_buffer_free(void *_buf, uint32_t size)
221 struct udl_buffer *buf;
223 /* check for NULL pointer */
226 /* compute pointer to recycle list */
227 buf = (struct udl_buffer *)(((uint8_t *)_buf) + size);
230 * Memory mapped buffers should never be freed.
231 * Put display buffer into a recycle list.
233 mtx_lock(&udl_buffer_mtx);
235 TAILQ_INSERT_TAIL(&udl_buffer_head, buf, entry);
236 mtx_unlock(&udl_buffer_mtx);
240 udl_get_fb_size(struct udl_softc *sc)
242 unsigned i = sc->sc_cur_mode;
244 return ((uint32_t)udl_modes[i].hdisplay *
245 (uint32_t)udl_modes[i].vdisplay * 2);
249 udl_get_fb_width(struct udl_softc *sc)
251 unsigned i = sc->sc_cur_mode;
253 return (udl_modes[i].hdisplay);
257 udl_get_fb_height(struct udl_softc *sc)
259 unsigned i = sc->sc_cur_mode;
261 return (udl_modes[i].vdisplay);
265 udl_get_fb_hz(struct udl_softc *sc)
267 unsigned i = sc->sc_cur_mode;
269 return (udl_modes[i].hz);
273 udl_callout(void *arg)
275 struct udl_softc *sc = arg;
276 const uint32_t max = udl_get_fb_size(sc);
279 if (sc->sc_power_save == 0) {
282 /* figure out number of frames per second */
283 if (fps < UDL_FPS_MIN)
285 else if (fps > UDL_FPS_MAX)
288 if (sc->sc_sync_off >= max)
290 usbd_transfer_start(sc->sc_xfer[UDL_BULK_WRITE_0]);
291 usbd_transfer_start(sc->sc_xfer[UDL_BULK_WRITE_1]);
295 callout_reset(&sc->sc_callout, hz / fps, &udl_callout, sc);
299 udl_probe(device_t dev)
301 struct usb_attach_arg *uaa = device_get_ivars(dev);
303 if (uaa->usb_mode != USB_MODE_HOST)
305 if (uaa->info.bConfigIndex != 0)
307 if (uaa->info.bIfaceIndex != 0)
310 return (usbd_lookup_id_by_uaa(udl_devs, sizeof(udl_devs), uaa));
314 udl_attach(device_t dev)
316 struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(dev);
317 struct sysctl_oid *tree = device_get_sysctl_tree(dev);
318 struct udl_softc *sc = device_get_softc(dev);
319 struct usb_attach_arg *uaa = device_get_ivars(dev);
323 device_set_usb_desc(dev);
325 mtx_init(&sc->sc_mtx, "UDL lock", NULL, MTX_DEF);
326 cv_init(&sc->sc_cv, "UDLCV");
327 callout_init_mtx(&sc->sc_callout, &sc->sc_mtx, 0);
328 sc->sc_udev = uaa->device;
330 error = usbd_transfer_setup(uaa->device, &uaa->info.bIfaceIndex,
331 sc->sc_xfer, udl_config, UDL_N_TRANSFER, sc, &sc->sc_mtx);
334 DPRINTF("usbd_transfer_setup error=%s\n", usbd_errstr(error));
337 usbd_xfer_set_priv(sc->sc_xfer[UDL_BULK_WRITE_0], &sc->sc_xfer_head[0]);
338 usbd_xfer_set_priv(sc->sc_xfer[UDL_BULK_WRITE_1], &sc->sc_xfer_head[1]);
340 TAILQ_INIT(&sc->sc_xfer_head[0]);
341 TAILQ_INIT(&sc->sc_xfer_head[1]);
342 TAILQ_INIT(&sc->sc_cmd_buf_free);
343 TAILQ_INIT(&sc->sc_cmd_buf_pending);
345 sc->sc_def_chip = -1;
346 sc->sc_chip = USB_GET_DRIVER_INFO(uaa);
347 sc->sc_def_mode = -1;
348 sc->sc_cur_mode = UDL_MAX_MODES;
350 /* Allow chip ID to be overwritten */
351 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, "chipid_force",
352 CTLFLAG_RWTUN, &sc->sc_def_chip, 0, "chip ID");
354 /* Export current chip ID */
355 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, "chipid",
356 CTLFLAG_RD, &sc->sc_chip, 0, "chip ID");
358 if (sc->sc_def_chip > -1 && sc->sc_def_chip <= DLMAX) {
359 device_printf(dev, "Forcing chip ID to 0x%04x\n", sc->sc_def_chip);
360 sc->sc_chip = sc->sc_def_chip;
363 * The product might have more than one chip
365 if (sc->sc_chip == DLUNK)
366 udl_select_chip(sc, uaa);
368 for (i = 0; i != UDL_CMD_MAX_BUFFERS; i++) {
369 struct udl_cmd_buf *cb = &sc->sc_cmd_buf_temp[i];
371 TAILQ_INSERT_TAIL(&sc->sc_cmd_buf_free, cb, entry);
377 error = udl_init_chip(sc);
378 if (error != USB_ERR_NORMAL_COMPLETION)
386 /* Allow default mode to be overwritten */
387 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, "mode_force",
388 CTLFLAG_RWTUN, &sc->sc_def_mode, 0, "mode");
390 /* Export current mode */
391 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, "mode",
392 CTLFLAG_RD, &sc->sc_cur_mode, 0, "mode");
395 if (i > -1 && i < UDL_MAX_MODES) {
396 if (udl_modes[i].chip <= sc->sc_chip) {
397 device_printf(dev, "Forcing mode to %d\n", i);
401 /* Printout current mode */
402 device_printf(dev, "Mode selected %dx%d @ %dHz\n",
403 (int)udl_get_fb_width(sc),
404 (int)udl_get_fb_height(sc),
405 (int)udl_get_fb_hz(sc));
407 udl_init_resolution(sc);
409 /* Allocate frame buffer */
416 sc->sc_fb_info.fb_name = device_get_nameunit(dev);
417 sc->sc_fb_info.fb_size = sc->sc_fb_size;
418 sc->sc_fb_info.fb_bpp = 16;
419 sc->sc_fb_info.fb_depth = 16;
420 sc->sc_fb_info.fb_width = udl_get_fb_width(sc);
421 sc->sc_fb_info.fb_height = udl_get_fb_height(sc);
422 sc->sc_fb_info.fb_stride = sc->sc_fb_info.fb_width * 2;
423 sc->sc_fb_info.fb_pbase = 0;
424 sc->sc_fb_info.fb_vbase = (uintptr_t)sc->sc_fb_addr;
425 sc->sc_fb_info.fb_priv = sc;
426 sc->sc_fb_info.setblankmode = &udl_fb_setblankmode;
428 sc->sc_fbdev = device_add_child(dev, "fbd", -1);
429 if (sc->sc_fbdev == NULL)
431 if (device_probe_and_attach(sc->sc_fbdev) != 0)
443 udl_detach(device_t dev)
445 struct udl_softc *sc = device_get_softc(dev);
447 /* delete all child devices */
448 device_delete_children(dev);
452 callout_stop(&sc->sc_callout);
455 usbd_transfer_unsetup(sc->sc_xfer, UDL_N_TRANSFER);
457 callout_drain(&sc->sc_callout);
459 mtx_destroy(&sc->sc_mtx);
460 cv_destroy(&sc->sc_cv);
462 /* put main framebuffer into a recycle list, if any */
463 udl_buffer_free(sc->sc_fb_addr, sc->sc_fb_size);
465 /* free shadow framebuffer memory, if any */
466 free(sc->sc_fb_copy, M_USB_DL);
471 static struct fb_info *
472 udl_fb_getinfo(device_t dev)
474 struct udl_softc *sc = device_get_softc(dev);
476 return (&sc->sc_fb_info);
480 udl_fb_setblankmode(void *arg, int mode)
482 struct udl_softc *sc = arg;
486 udl_power_save(sc, 1, M_WAITOK);
488 case V_DISPLAY_BLANK:
489 udl_power_save(sc, 1, M_WAITOK);
490 if (sc->sc_fb_addr != 0) {
491 const uint32_t max = udl_get_fb_size(sc);
493 memset((void *)sc->sc_fb_addr, 0, max);
496 case V_DISPLAY_STAND_BY:
497 case V_DISPLAY_SUSPEND:
498 udl_power_save(sc, 0, M_WAITOK);
504 static struct udl_cmd_buf *
505 udl_cmd_buf_alloc_locked(struct udl_softc *sc, int flags)
507 struct udl_cmd_buf *cb;
509 while ((cb = TAILQ_FIRST(&sc->sc_cmd_buf_free)) == NULL) {
510 if (flags != M_WAITOK)
512 cv_wait(&sc->sc_cv, &sc->sc_mtx);
515 TAILQ_REMOVE(&sc->sc_cmd_buf_free, cb, entry);
521 static struct udl_cmd_buf *
522 udl_cmd_buf_alloc(struct udl_softc *sc, int flags)
524 struct udl_cmd_buf *cb;
527 cb = udl_cmd_buf_alloc_locked(sc, flags);
533 udl_cmd_buf_send(struct udl_softc *sc, struct udl_cmd_buf *cb)
537 TAILQ_INSERT_TAIL(&sc->sc_cmd_buf_free, cb, entry);
539 /* mark end of command stack */
540 udl_cmd_insert_int_1(cb, UDL_BULK_SOC);
541 udl_cmd_insert_int_1(cb, UDL_BULK_CMD_EOC);
543 TAILQ_INSERT_TAIL(&sc->sc_cmd_buf_pending, cb, entry);
544 usbd_transfer_start(sc->sc_xfer[UDL_BULK_WRITE_0]);
545 usbd_transfer_start(sc->sc_xfer[UDL_BULK_WRITE_1]);
550 static struct udl_cmd_buf *
551 udl_fb_synchronize_locked(struct udl_softc *sc)
553 const uint32_t max = udl_get_fb_size(sc);
555 /* check if framebuffer is not ready */
556 if (sc->sc_fb_addr == NULL ||
557 sc->sc_fb_copy == NULL)
560 while (sc->sc_sync_off < max) {
561 uint32_t delta = max - sc->sc_sync_off;
563 if (delta > UDL_CMD_MAX_PIXEL_COUNT * 2)
564 delta = UDL_CMD_MAX_PIXEL_COUNT * 2;
565 if (bcmp(sc->sc_fb_addr + sc->sc_sync_off, sc->sc_fb_copy + sc->sc_sync_off, delta) != 0) {
566 struct udl_cmd_buf *cb;
568 cb = udl_cmd_buf_alloc_locked(sc, M_NOWAIT);
571 memcpy(sc->sc_fb_copy + sc->sc_sync_off,
572 sc->sc_fb_addr + sc->sc_sync_off, delta);
573 udl_cmd_insert_int_1(cb, UDL_BULK_SOC);
574 udl_cmd_insert_int_1(cb, UDL_BULK_CMD_FB_WRITE | UDL_BULK_CMD_FB_WORD);
575 udl_cmd_insert_int_3(cb, sc->sc_sync_off);
576 udl_cmd_insert_int_1(cb, delta / 2);
577 udl_cmd_insert_buf_le16(cb, sc->sc_fb_copy + sc->sc_sync_off, delta);
578 sc->sc_sync_off += delta;
581 sc->sc_sync_off += delta;
589 udl_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error)
591 struct udl_softc *sc = usbd_xfer_softc(xfer);
592 struct udl_cmd_head *phead = usbd_xfer_get_priv(xfer);
593 struct udl_cmd_buf *cb;
596 switch (USB_GET_STATE(xfer)) {
597 case USB_ST_TRANSFERRED:
598 TAILQ_CONCAT(&sc->sc_cmd_buf_free, phead, entry);
601 for (i = 0; i != UDL_CMD_MAX_FRAMES; i++) {
602 cb = TAILQ_FIRST(&sc->sc_cmd_buf_pending);
604 cb = udl_fb_synchronize_locked(sc);
608 TAILQ_REMOVE(&sc->sc_cmd_buf_pending, cb, entry);
610 TAILQ_INSERT_TAIL(phead, cb, entry);
611 usbd_xfer_set_frame_data(xfer, i, cb->buf, cb->off);
614 usbd_xfer_set_frames(xfer, i);
615 usbd_transfer_submit(xfer);
619 TAILQ_CONCAT(&sc->sc_cmd_buf_free, phead, entry);
620 if (error != USB_ERR_CANCELLED) {
621 /* try clear stall first */
622 usbd_xfer_set_stall(xfer);
627 /* wakeup any waiters */
628 cv_signal(&sc->sc_cv);
632 udl_power_save(struct udl_softc *sc, int on, int flags)
634 struct udl_cmd_buf *cb;
637 cb = udl_cmd_buf_alloc(sc, flags);
641 DPRINTF("screen %s\n", on ? "ON" : "OFF");
643 sc->sc_power_save = on ? 0 : 1;
646 udl_cmd_write_reg_1(cb, UDL_REG_SCREEN, UDL_REG_SCREEN_ON);
648 udl_cmd_write_reg_1(cb, UDL_REG_SCREEN, UDL_REG_SCREEN_OFF);
650 udl_cmd_write_reg_1(cb, UDL_REG_SYNC, 0xff);
651 udl_cmd_buf_send(sc, cb);
656 udl_ctrl_msg(struct udl_softc *sc, uint8_t rt, uint8_t r,
657 uint16_t index, uint16_t value, uint8_t *buf, size_t len)
659 usb_device_request_t req;
662 req.bmRequestType = rt;
664 USETW(req.wIndex, index);
665 USETW(req.wValue, value);
666 USETW(req.wLength, len);
668 error = usbd_do_request_flags(sc->sc_udev, NULL,
669 &req, buf, 0, NULL, USB_DEFAULT_TIMEOUT);
671 DPRINTF("%s\n", usbd_errstr(error));
677 udl_poll(struct udl_softc *sc, uint32_t *buf)
682 error = udl_ctrl_msg(sc, UT_READ_VENDOR_DEVICE,
683 UDL_CTRL_CMD_POLL, 0x0000, 0x0000, (uint8_t *)&lbuf, sizeof(lbuf));
684 if (error == USB_ERR_NORMAL_COMPLETION)
685 *buf = le32toh(lbuf);
690 udl_read_1(struct udl_softc *sc, uint16_t addr, uint8_t *buf)
695 error = udl_ctrl_msg(sc, UT_READ_VENDOR_DEVICE,
696 UDL_CTRL_CMD_READ_1, addr, 0x0000, lbuf, 1);
697 if (error == USB_ERR_NORMAL_COMPLETION)
698 *buf = *(uint8_t *)lbuf;
703 udl_write_1(struct udl_softc *sc, uint16_t addr, uint8_t buf)
707 error = udl_ctrl_msg(sc, UT_WRITE_VENDOR_DEVICE,
708 UDL_CTRL_CMD_WRITE_1, addr, 0x0000, &buf, 1);
713 udl_read_edid(struct udl_softc *sc, uint8_t *buf)
721 error = udl_ctrl_msg(sc, UT_READ_VENDOR_DEVICE,
722 UDL_CTRL_CMD_READ_EDID, 0x00a1, (offset << 8), lbuf, 64);
723 if (error != USB_ERR_NORMAL_COMPLETION)
725 bcopy(lbuf + 1, buf + offset, 63);
728 error = udl_ctrl_msg(sc, UT_READ_VENDOR_DEVICE,
729 UDL_CTRL_CMD_READ_EDID, 0x00a1, (offset << 8), lbuf, 64);
730 if (error != USB_ERR_NORMAL_COMPLETION)
732 bcopy(lbuf + 1, buf + offset, 63);
735 error = udl_ctrl_msg(sc, UT_READ_VENDOR_DEVICE,
736 UDL_CTRL_CMD_READ_EDID, 0x00a1, (offset << 8), lbuf, 3);
737 if (error != USB_ERR_NORMAL_COMPLETION)
739 bcopy(lbuf + 1, buf + offset, 2);
745 udl_lookup_mode(uint16_t hdisplay, uint16_t vdisplay, uint8_t hz,
746 uint16_t chip, uint32_t clock)
751 * Check first if we have a matching mode with pixelclock
753 for (idx = 0; idx != UDL_MAX_MODES; idx++) {
754 if ((udl_modes[idx].hdisplay == hdisplay) &&
755 (udl_modes[idx].vdisplay == vdisplay) &&
756 (udl_modes[idx].clock == clock) &&
757 (udl_modes[idx].chip <= chip)) {
763 * If not, check for matching mode with update frequency
765 for (idx = 0; idx != UDL_MAX_MODES; idx++) {
766 if ((udl_modes[idx].hdisplay == hdisplay) &&
767 (udl_modes[idx].vdisplay == vdisplay) &&
768 (udl_modes[idx].hz == hz) &&
769 (udl_modes[idx].chip <= chip)) {
777 udl_select_chip(struct udl_softc *sc, struct usb_attach_arg *uaa)
781 pserial = usb_get_serial(uaa->device);
785 if ((uaa->info.idVendor == USB_VENDOR_DISPLAYLINK) &&
786 (uaa->info.idProduct == USB_PRODUCT_DISPLAYLINK_WSDVI)) {
789 * WS Tech DVI is DL120 or DL160. All deviced uses the
790 * same revision (0.04) so iSerialNumber must be used
791 * to determin which chip it is.
794 if (strlen(pserial) > 7) {
795 if (strncmp(pserial, "0198-13", 7) == 0)
798 DPRINTF("iSerialNumber (%s) used to select chip (%d)\n",
799 pserial, sc->sc_chip);
801 if ((uaa->info.idVendor == USB_VENDOR_DISPLAYLINK) &&
802 (uaa->info.idProduct == USB_PRODUCT_DISPLAYLINK_SWDVI)) {
805 * SUNWEIT DVI is DL160, DL125, DL165 or DL195. Major revision
806 * can be used to differ between DL1x0 and DL1x5. Minor to
807 * differ between DL1x5. iSerialNumber seems not to be uniqe.
812 if (uaa->info.bcdDevice >= 0x100) {
814 if (uaa->info.bcdDevice == 0x104)
816 if (uaa->info.bcdDevice == 0x108)
819 DPRINTF("bcdDevice (%02x) used to select chip (%d)\n",
820 uaa->info.bcdDevice, sc->sc_chip);
825 udl_set_enc_key(struct udl_softc *sc, uint8_t *buf, uint8_t len)
829 error = udl_ctrl_msg(sc, UT_WRITE_VENDOR_DEVICE,
830 UDL_CTRL_CMD_SET_KEY, 0x0000, 0x0000, buf, len);
835 udl_fbmem_alloc(struct udl_softc *sc)
839 size = udl_get_fb_size(sc);
840 size = round_page(size);
841 /* check for zero size */
845 * It is assumed that allocations above PAGE_SIZE bytes will
846 * be PAGE_SIZE aligned for use with mmap()
848 sc->sc_fb_addr = udl_buffer_alloc(size);
849 sc->sc_fb_copy = malloc(size, M_USB_DL, M_WAITOK | M_ZERO);
850 sc->sc_fb_size = size;
854 udl_cmd_insert_int_1(struct udl_cmd_buf *cb, uint8_t value)
857 cb->buf[cb->off] = value;
863 udl_cmd_insert_int_2(struct udl_cmd_buf *cb, uint16_t value)
867 lvalue = htobe16(value);
868 bcopy(&lvalue, cb->buf + cb->off, 2);
876 udl_cmd_insert_int_3(struct udl_cmd_buf *cb, uint32_t value)
880 #if BYTE_ORDER == BIG_ENDIAN
881 lvalue = htobe32(value) << 8;
883 lvalue = htobe32(value) >> 8;
885 bcopy(&lvalue, cb->buf + cb->off, 3);
892 udl_cmd_insert_int_4(struct udl_cmd_buf *cb, uint32_t value)
896 lvalue = htobe32(value);
897 bcopy(&lvalue, cb->buf + cb->off, 4);
905 udl_cmd_insert_buf_le16(struct udl_cmd_buf *cb, const uint8_t *buf, uint32_t len)
909 for (x = 0; x != len; x += 2) {
910 /* byte swap from little endian to big endian */
911 cb->buf[cb->off + x + 0] = buf[x + 1];
912 cb->buf[cb->off + x + 1] = buf[x + 0];
918 udl_cmd_write_reg_1(struct udl_cmd_buf *cb, uint8_t reg, uint8_t val)
921 udl_cmd_insert_int_1(cb, UDL_BULK_SOC);
922 udl_cmd_insert_int_1(cb, UDL_BULK_CMD_REG_WRITE_1);
923 udl_cmd_insert_int_1(cb, reg);
924 udl_cmd_insert_int_1(cb, val);
928 udl_cmd_write_reg_3(struct udl_cmd_buf *cb, uint8_t reg, uint32_t val)
931 udl_cmd_write_reg_1(cb, reg + 0, (val >> 16) & 0xff);
932 udl_cmd_write_reg_1(cb, reg + 1, (val >> 8) & 0xff);
933 udl_cmd_write_reg_1(cb, reg + 2, (val >> 0) & 0xff);
937 udl_init_chip(struct udl_softc *sc)
943 error = udl_poll(sc, &ui32);
944 if (error != USB_ERR_NORMAL_COMPLETION)
946 DPRINTF("poll=0x%08x\n", ui32);
948 /* Some products may use later chip too */
949 switch (ui32 & 0xff) {
950 case 0xf1: /* DL1x5 */
951 switch (sc->sc_chip) {
961 DPRINTF("chip 0x%04x\n", sc->sc_chip);
963 error = udl_read_1(sc, 0xc484, &ui8);
964 if (error != USB_ERR_NORMAL_COMPLETION)
966 DPRINTF("read 0x%02x from 0xc484\n", ui8);
968 error = udl_write_1(sc, 0xc41f, 0x01);
969 if (error != USB_ERR_NORMAL_COMPLETION)
971 DPRINTF("write 0x01 to 0xc41f\n");
973 error = udl_read_edid(sc, sc->sc_edid);
974 if (error != USB_ERR_NORMAL_COMPLETION)
976 DPRINTF("read EDID\n");
978 error = udl_set_enc_key(sc, __DECONST(void *, udl_null_key_1),
979 sizeof(udl_null_key_1));
980 if (error != USB_ERR_NORMAL_COMPLETION)
982 DPRINTF("set encryption key\n");
984 error = udl_write_1(sc, 0xc40b, 0x00);
985 if (error != USB_ERR_NORMAL_COMPLETION)
987 DPRINTF("write 0x00 to 0xc40b\n");
989 return (USB_ERR_NORMAL_COMPLETION);
993 udl_init_fb_offsets(struct udl_cmd_buf *cb, uint32_t start16, uint32_t stride16,
994 uint32_t start8, uint32_t stride8)
996 udl_cmd_write_reg_1(cb, UDL_REG_SYNC, 0x00);
997 udl_cmd_write_reg_3(cb, UDL_REG_ADDR_START16, start16);
998 udl_cmd_write_reg_3(cb, UDL_REG_ADDR_STRIDE16, stride16);
999 udl_cmd_write_reg_3(cb, UDL_REG_ADDR_START8, start8);
1000 udl_cmd_write_reg_3(cb, UDL_REG_ADDR_STRIDE8, stride8);
1001 udl_cmd_write_reg_1(cb, UDL_REG_SYNC, 0xff);
1005 udl_init_resolution(struct udl_softc *sc)
1007 const uint32_t max = udl_get_fb_size(sc);
1008 const uint8_t *buf = udl_modes[sc->sc_cur_mode].mode;
1009 struct udl_cmd_buf *cb;
1014 /* get new buffer */
1015 cb = udl_cmd_buf_alloc(sc, M_WAITOK);
1019 /* write resolution values and set video memory offsets */
1020 udl_cmd_write_reg_1(cb, UDL_REG_SYNC, 0x00);
1021 for (i = 0; i < UDL_MODE_SIZE; i++)
1022 udl_cmd_write_reg_1(cb, i, buf[i]);
1023 udl_cmd_write_reg_1(cb, UDL_REG_SYNC, 0xff);
1025 udl_init_fb_offsets(cb, 0x000000, 0x000a00, 0x555555, 0x000500);
1026 udl_cmd_buf_send(sc, cb);
1028 /* fill screen with black color */
1029 for (i = 0; i < max; i += delta) {
1030 static const uint8_t udl_black[UDL_CMD_MAX_PIXEL_COUNT * 2] __aligned(4);
1033 if (delta > UDL_CMD_MAX_PIXEL_COUNT * 2)
1034 delta = UDL_CMD_MAX_PIXEL_COUNT * 2;
1036 error = udl_cmd_write_buf_le16(sc, udl_black, i, delta / 2, M_WAITOK);
1038 error = udl_cmd_buf_copy_le16(sc, 0, i, delta / 2, M_WAITOK);
1043 /* get new buffer */
1044 cb = udl_cmd_buf_alloc(sc, M_WAITOK);
1048 /* show framebuffer content */
1049 udl_cmd_write_reg_1(cb, UDL_REG_SCREEN, UDL_REG_SCREEN_ON);
1050 udl_cmd_write_reg_1(cb, UDL_REG_SYNC, 0xff);
1051 udl_cmd_buf_send(sc, cb);
1056 udl_select_mode(struct udl_softc *sc)
1058 struct udl_mode mode;
1059 int index = UDL_MAX_MODES;
1062 /* try to get the preferred mode from EDID */
1063 edid_parse(sc->sc_edid, &sc->sc_edid_info);
1065 edid_print(&sc->sc_edid_info);
1067 if (sc->sc_edid_info.edid_preferred_mode != NULL) {
1069 (sc->sc_edid_info.edid_preferred_mode->dot_clock * 1000) /
1070 (sc->sc_edid_info.edid_preferred_mode->htotal *
1071 sc->sc_edid_info.edid_preferred_mode->vtotal);
1073 sc->sc_edid_info.edid_preferred_mode->dot_clock / 10;
1075 sc->sc_edid_info.edid_preferred_mode->hdisplay;
1077 sc->sc_edid_info.edid_preferred_mode->vdisplay;
1078 index = udl_lookup_mode(mode.hdisplay, mode.vdisplay, mode.hz,
1079 sc->sc_chip, mode.clock);
1080 sc->sc_cur_mode = index;
1082 DPRINTF("no preferred mode found!\n");
1085 if (index == UDL_MAX_MODES) {
1086 DPRINTF("no mode line found\n");
1089 while (i < sc->sc_edid_info.edid_nmodes) {
1091 (sc->sc_edid_info.edid_modes[i].dot_clock * 1000) /
1092 (sc->sc_edid_info.edid_modes[i].htotal *
1093 sc->sc_edid_info.edid_modes[i].vtotal);
1095 sc->sc_edid_info.edid_modes[i].dot_clock / 10;
1097 sc->sc_edid_info.edid_modes[i].hdisplay;
1099 sc->sc_edid_info.edid_modes[i].vdisplay;
1100 index = udl_lookup_mode(mode.hdisplay, mode.vdisplay,
1101 mode.hz, sc->sc_chip, mode.clock);
1102 if (index < UDL_MAX_MODES)
1103 if ((sc->sc_cur_mode == UDL_MAX_MODES) ||
1104 (index > sc->sc_cur_mode))
1105 sc->sc_cur_mode = index;
1110 * If no mode found use default.
1112 if (sc->sc_cur_mode == UDL_MAX_MODES)
1113 sc->sc_cur_mode = udl_lookup_mode(800, 600, 60, sc->sc_chip, 0);
1117 udl_cmd_write_buf_le16(struct udl_softc *sc, const uint8_t *buf, uint32_t off,
1118 uint8_t pixels, int flags)
1120 struct udl_cmd_buf *cb;
1122 cb = udl_cmd_buf_alloc(sc, flags);
1126 udl_cmd_insert_int_1(cb, UDL_BULK_SOC);
1127 udl_cmd_insert_int_1(cb, UDL_BULK_CMD_FB_WRITE | UDL_BULK_CMD_FB_WORD);
1128 udl_cmd_insert_int_3(cb, off);
1129 udl_cmd_insert_int_1(cb, pixels);
1130 udl_cmd_insert_buf_le16(cb, buf, 2 * pixels);
1131 udl_cmd_buf_send(sc, cb);
1137 udl_cmd_buf_copy_le16(struct udl_softc *sc, uint32_t src, uint32_t dst,
1138 uint8_t pixels, int flags)
1140 struct udl_cmd_buf *cb;
1142 cb = udl_cmd_buf_alloc(sc, flags);
1146 udl_cmd_insert_int_1(cb, UDL_BULK_SOC);
1147 udl_cmd_insert_int_1(cb, UDL_BULK_CMD_FB_COPY | UDL_BULK_CMD_FB_WORD);
1148 udl_cmd_insert_int_3(cb, dst);
1149 udl_cmd_insert_int_1(cb, pixels);
1150 udl_cmd_insert_int_3(cb, src);
1151 udl_cmd_buf_send(sc, cb);