Lines Matching defs:dlfb
79 static int dlfb_realloc_framebuffer(struct dlfb_data *dlfb, struct fb_info *info, u32 new_len);
81 /* dlfb keeps a list of urbs for efficient bulk transfers */
83 static struct urb *dlfb_get_urb(struct dlfb_data *dlfb);
84 static int dlfb_submit_urb(struct dlfb_data *dlfb, struct urb * urb, size_t len);
85 static int dlfb_alloc_urb_list(struct dlfb_data *dlfb, int count, size_t size);
86 static void dlfb_free_urb_list(struct dlfb_data *dlfb);
281 static int dlfb_set_video_mode(struct dlfb_data *dlfb,
290 if (!atomic_read(&dlfb->usb_active))
293 urb = dlfb_get_urb(dlfb);
309 wrptr = dlfb_set_base8bpp(wrptr, dlfb->info->fix.smem_len);
317 retval = dlfb_submit_urb(dlfb, urb, writesize);
319 dlfb->blank_mode = FB_BLANK_UNBLANK;
540 static int dlfb_render_hline(struct dlfb_data *dlfb, struct urb **urb_ptr,
546 u32 dev_addr = dlfb->base16 + byte_offset;
556 if (dlfb->backing_buffer) {
558 const u8 *back_start = (u8 *) (dlfb->backing_buffer
582 if (dlfb_submit_urb(dlfb, urb, len))
585 urb = dlfb_get_urb(dlfb);
599 static int dlfb_handle_damage(struct dlfb_data *dlfb, int x, int y, int width, int height)
611 mutex_lock(&dlfb->render_mutex);
618 (x + width > dlfb->info->var.xres) ||
619 (y + height > dlfb->info->var.yres)) {
624 if (!atomic_read(&dlfb->usb_active)) {
629 urb = dlfb_get_urb(dlfb);
637 const int line_offset = dlfb->info->fix.line_length * i;
640 if (dlfb_render_hline(dlfb, &urb,
641 (char *) dlfb->info->fix.smem_start,
653 dlfb_submit_urb(dlfb, urb, len);
659 atomic_add(bytes_sent, &dlfb->bytes_sent);
660 atomic_add(bytes_identical, &dlfb->bytes_identical);
661 atomic_add(width*height*2, &dlfb->bytes_rendered);
665 &dlfb->cpu_kcycles_used);
670 mutex_unlock(&dlfb->render_mutex);
674 static void dlfb_init_damage(struct dlfb_data *dlfb)
676 dlfb->damage_x = INT_MAX;
677 dlfb->damage_x2 = 0;
678 dlfb->damage_y = INT_MAX;
679 dlfb->damage_y2 = 0;
684 struct dlfb_data *dlfb = container_of(w, struct dlfb_data, damage_work);
687 spin_lock_irq(&dlfb->damage_lock);
688 x = dlfb->damage_x;
689 x2 = dlfb->damage_x2;
690 y = dlfb->damage_y;
691 y2 = dlfb->damage_y2;
692 dlfb_init_damage(dlfb);
693 spin_unlock_irq(&dlfb->damage_lock);
696 dlfb_handle_damage(dlfb, x, y, x2 - x, y2 - y);
699 static void dlfb_offload_damage(struct dlfb_data *dlfb, int x, int y, int width, int height)
708 spin_lock_irqsave(&dlfb->damage_lock, flags);
709 dlfb->damage_x = min(x, dlfb->damage_x);
710 dlfb->damage_x2 = max(x2, dlfb->damage_x2);
711 dlfb->damage_y = min(y, dlfb->damage_y);
712 dlfb->damage_y2 = max(y2, dlfb->damage_y2);
713 spin_unlock_irqrestore(&dlfb->damage_lock, flags);
715 schedule_work(&dlfb->damage_work);
728 struct dlfb_data *dlfb = info->par;
738 dlfb_handle_damage(dlfb, 0, start, info->var.xres,
750 struct dlfb_data *dlfb = info->par;
754 dlfb_offload_damage(dlfb, area->dx, area->dy,
761 struct dlfb_data *dlfb = info->par;
765 dlfb_offload_damage(dlfb, image->dx, image->dy,
772 struct dlfb_data *dlfb = info->par;
776 dlfb_offload_damage(dlfb, rect->dx, rect->dy, rect->width,
789 struct dlfb_data *dlfb = info->par;
797 mutex_lock(&dlfb->render_mutex);
802 if (!atomic_read(&dlfb->usb_active))
807 urb = dlfb_get_urb(dlfb);
815 if (dlfb_render_hline(dlfb, &urb, (char *) info->fix.smem_start,
828 dlfb_submit_urb(dlfb, urb, len);
834 atomic_add(bytes_sent, &dlfb->bytes_sent);
835 atomic_add(bytes_identical, &dlfb->bytes_identical);
836 atomic_add(bytes_rendered, &dlfb->bytes_rendered);
840 &dlfb->cpu_kcycles_used);
842 mutex_unlock(&dlfb->render_mutex);
845 static int dlfb_get_edid(struct dlfb_data *dlfb, char *edid, int len)
855 ret = usb_control_msg(dlfb->udev,
856 usb_rcvctrlpipe(dlfb->udev, 0), 0x02,
860 dev_err(&dlfb->udev->dev,
877 struct dlfb_data *dlfb = info->par;
879 if (!atomic_read(&dlfb->usb_active))
885 if (copy_to_user(edid, dlfb->edid, dlfb->edid_size))
920 dlfb_handle_damage(dlfb, area.x, area.y, area.w, area.h);
960 struct dlfb_data *dlfb = info->par;
971 if (dlfb->virtualized)
974 dlfb->fb_count++;
994 user, info, dlfb->fb_count);
1001 struct dlfb_data *dlfb = info->par;
1003 cancel_work_sync(&dlfb->damage_work);
1005 mutex_destroy(&dlfb->render_mutex);
1015 while (!list_empty(&dlfb->deferred_free)) {
1016 struct dlfb_deferred_free *d = list_entry(dlfb->deferred_free.next, struct dlfb_deferred_free, list);
1021 vfree(dlfb->backing_buffer);
1022 kfree(dlfb->edid);
1023 dlfb_free_urb_list(dlfb);
1024 usb_put_dev(dlfb->udev);
1025 kfree(dlfb);
1036 struct dlfb_data *dlfb = info->par;
1038 dlfb->fb_count--;
1040 if ((dlfb->fb_count == 0) && (info->fbdefio)) {
1046 dev_dbg(info->dev, "release, user=%d count=%d\n", user, dlfb->fb_count);
1055 static int dlfb_is_valid_mode(struct fb_videomode *mode, struct dlfb_data *dlfb)
1057 if (mode->xres * mode->yres > dlfb->sku_pixel_limit)
1079 struct dlfb_data *dlfb = info->par;
1086 if (!dlfb_is_valid_mode(&mode, dlfb))
1094 struct dlfb_data *dlfb = info->par;
1106 if (!memcmp(&dlfb->current_mode, &fvs, sizeof(struct fb_var_screeninfo)))
1109 result = dlfb_realloc_framebuffer(dlfb, info, info->var.yres * line_length);
1113 result = dlfb_set_video_mode(dlfb, &info->var);
1118 dlfb->current_mode = fvs;
1121 if (dlfb->fb_count == 0) {
1130 dlfb_handle_damage(dlfb, 0, 0, info->var.xres, info->var.yres);
1155 struct dlfb_data *dlfb = info->par;
1160 dlfb->blank_mode, blank_mode);
1162 if ((dlfb->blank_mode == FB_BLANK_POWERDOWN) &&
1166 dlfb_set_video_mode(dlfb, &info->var);
1169 urb = dlfb_get_urb(dlfb);
1181 dlfb_submit_urb(dlfb, urb, bufptr -
1184 dlfb->blank_mode = blank_mode;
1208 static void dlfb_deferred_vfree(struct dlfb_data *dlfb, void *mem)
1214 list_add(&d->list, &dlfb->deferred_free);
1221 static int dlfb_realloc_framebuffer(struct dlfb_data *dlfb, struct fb_info *info, u32 new_len)
1243 dlfb_deferred_vfree(dlfb, info->screen_buffer);
1263 dlfb_deferred_vfree(dlfb, dlfb->backing_buffer);
1264 dlfb->backing_buffer = new_back;
1284 static int dlfb_setup_modes(struct dlfb_data *dlfb,
1317 i = dlfb_get_edid(dlfb, edid, EDID_LENGTH);
1323 dlfb->edid = edid;
1324 dlfb->edid_size = i;
1333 if (dlfb->edid) {
1334 fb_edid_to_monspecs(dlfb->edid, &info->monspecs);
1346 dlfb->edid = edid;
1347 dlfb->edid_size = default_edid_size;
1358 if (dlfb_is_valid_mode(mode, dlfb)) {
1387 if (dlfb_is_valid_mode(mode, dlfb))
1406 if ((default_vmode != NULL) && (dlfb->fb_count == 0)) {
1419 if (edid && (dlfb->edid != edid))
1431 struct dlfb_data *dlfb = fb_info->par;
1433 atomic_read(&dlfb->bytes_rendered));
1439 struct dlfb_data *dlfb = fb_info->par;
1441 atomic_read(&dlfb->bytes_identical));
1447 struct dlfb_data *dlfb = fb_info->par;
1449 atomic_read(&dlfb->bytes_sent));
1455 struct dlfb_data *dlfb = fb_info->par;
1457 atomic_read(&dlfb->cpu_kcycles_used));
1466 struct dlfb_data *dlfb = fb_info->par;
1468 if (dlfb->edid == NULL)
1471 if ((off >= dlfb->edid_size) || (count > dlfb->edid_size))
1474 if (off + count > dlfb->edid_size)
1475 count = dlfb->edid_size - off;
1477 memcpy(buf, dlfb->edid, count);
1488 struct dlfb_data *dlfb = fb_info->par;
1495 ret = dlfb_setup_modes(dlfb, fb_info, src, src_size);
1499 if (!dlfb->edid || memcmp(src, dlfb->edid, src_size))
1514 struct dlfb_data *dlfb = fb_info->par;
1516 atomic_set(&dlfb->bytes_rendered, 0);
1517 atomic_set(&dlfb->bytes_identical, 0);
1518 atomic_set(&dlfb->bytes_sent, 0);
1519 atomic_set(&dlfb->cpu_kcycles_used, 0);
1543 static int dlfb_select_std_channel(struct dlfb_data *dlfb)
1552 ret = usb_control_msg_send(dlfb->udev, 0, NR_USB_REQUEST_CHANNEL,
1560 static int dlfb_parse_vendor_descriptor(struct dlfb_data *dlfb,
1616 dlfb->sku_pixel_limit = max_area;
1645 struct dlfb_data *dlfb;
1652 dlfb = kzalloc(sizeof(*dlfb), GFP_KERNEL);
1653 if (!dlfb) {
1654 dev_err(&intf->dev, "%s: failed to allocate dlfb\n", __func__);
1658 INIT_LIST_HEAD(&dlfb->deferred_free);
1660 dlfb->udev = usb_get_dev(usbdev);
1661 usb_set_intfdata(intf, dlfb);
1673 dlfb->sku_pixel_limit = 2048 * 1152; /* default to maximum */
1675 if (!dlfb_parse_vendor_descriptor(dlfb, intf)) {
1685 dlfb->sku_pixel_limit, pixel_limit);
1686 dlfb->sku_pixel_limit = pixel_limit;
1691 info = framebuffer_alloc(0, &dlfb->udev->dev);
1697 dlfb->info = info;
1698 info->par = dlfb;
1699 info->pseudo_palette = dlfb->pseudo_palette;
1700 dlfb->ops = dlfb_ops;
1701 info->fbops = &dlfb->ops;
1703 mutex_init(&dlfb->render_mutex);
1704 dlfb_init_damage(dlfb);
1705 spin_lock_init(&dlfb->damage_lock);
1706 INIT_WORK(&dlfb->damage_work, dlfb_damage_work);
1710 if (!dlfb_alloc_urb_list(dlfb, WRITES_IN_FLIGHT, MAX_TRANSFER)) {
1724 retval = dlfb_setup_modes(dlfb, info, NULL, 0);
1733 atomic_set(&dlfb->usb_active, 1);
1734 dlfb_select_std_channel(dlfb);
1765 ((dlfb->backing_buffer) ?
1770 if (dlfb->info) {
1771 dlfb_ops_destroy(dlfb->info);
1773 usb_put_dev(dlfb->udev);
1774 kfree(dlfb);
1781 struct dlfb_data *dlfb;
1785 dlfb = usb_get_intfdata(intf);
1786 info = dlfb->info;
1791 dlfb->virtualized = true;
1794 atomic_set(&dlfb->usb_active, 0);
1797 dlfb_free_urb_list(dlfb);
1819 struct dlfb_data *dlfb = unode->dlfb;
1832 dev_err(&dlfb->udev->dev,
1835 atomic_set(&dlfb->lost_pixels, 1);
1839 urb->transfer_buffer_length = dlfb->urbs.size; /* reset to actual */
1841 spin_lock_irqsave(&dlfb->urbs.lock, flags);
1842 list_add_tail(&unode->entry, &dlfb->urbs.list);
1843 dlfb->urbs.available++;
1844 spin_unlock_irqrestore(&dlfb->urbs.lock, flags);
1846 up(&dlfb->urbs.limit_sem);
1849 static void dlfb_free_urb_list(struct dlfb_data *dlfb)
1851 int count = dlfb->urbs.count;
1858 down(&dlfb->urbs.limit_sem);
1860 spin_lock_irq(&dlfb->urbs.lock);
1862 node = dlfb->urbs.list.next; /* have reserved one with sem */
1865 spin_unlock_irq(&dlfb->urbs.lock);
1871 usb_free_coherent(urb->dev, dlfb->urbs.size,
1877 dlfb->urbs.count = 0;
1880 static int dlfb_alloc_urb_list(struct dlfb_data *dlfb, int count, size_t size)
1887 spin_lock_init(&dlfb->urbs.lock);
1890 dlfb->urbs.size = size;
1891 INIT_LIST_HEAD(&dlfb->urbs.list);
1893 sema_init(&dlfb->urbs.limit_sem, 0);
1894 dlfb->urbs.count = 0;
1895 dlfb->urbs.available = 0;
1897 while (dlfb->urbs.count * size < wanted_size) {
1901 unode->dlfb = dlfb;
1910 buf = usb_alloc_coherent(dlfb->udev, size, GFP_KERNEL,
1917 dlfb_free_urb_list(dlfb);
1924 usb_fill_bulk_urb(urb, dlfb->udev,
1925 usb_sndbulkpipe(dlfb->udev, OUT_EP_NUM),
1929 list_add_tail(&unode->entry, &dlfb->urbs.list);
1931 up(&dlfb->urbs.limit_sem);
1932 dlfb->urbs.count++;
1933 dlfb->urbs.available++;
1936 return dlfb->urbs.count;
1939 static struct urb *dlfb_get_urb(struct dlfb_data *dlfb)
1946 ret = down_timeout(&dlfb->urbs.limit_sem, GET_URB_TIMEOUT);
1948 atomic_set(&dlfb->lost_pixels, 1);
1949 dev_warn(&dlfb->udev->dev,
1951 ret, dlfb->urbs.available);
1955 spin_lock_irq(&dlfb->urbs.lock);
1957 BUG_ON(list_empty(&dlfb->urbs.list)); /* reserved one with limit_sem */
1958 entry = dlfb->urbs.list.next;
1960 dlfb->urbs.available--;
1962 spin_unlock_irq(&dlfb->urbs.lock);
1968 static int dlfb_submit_urb(struct dlfb_data *dlfb, struct urb *urb, size_t len)
1972 BUG_ON(len > dlfb->urbs.size);
1978 atomic_set(&dlfb->lost_pixels, 1);
1979 dev_err(&dlfb->udev->dev, "submit urb error: %d\n", ret);