VbError_t VbDisplayScreen(VbCommonParams *cparams, uint32_t screen,
int force, VbNvContext *vncptr)
{
VbError_t retval;
/* Initialize display if necessary */
if (!disp_width) {
retval = VbExDisplayInit(&disp_width, &disp_height);
if (VBERROR_SUCCESS != retval)
return retval;
}
/* If requested screen is the same as the current one, we're done. */
if (disp_current_screen == screen && 0 == force)
return VBERROR_SUCCESS;
/* If the screen is blank, turn off the backlight; else turn it on. */
VbExDisplayBacklight(VB_SCREEN_BLANK == screen ? 0 : 1);
/* Request the screen */
disp_current_screen = screen;
/* Look in the GBB first */
if (VBERROR_SUCCESS == VbDisplayScreenFromGBB(cparams, screen,
vncptr))
return VBERROR_SUCCESS;
/* If screen wasn't in the GBB bitmaps, fall back to a default */
return VbExDisplayScreen(screen);
}
static int do_vbexport_test_display(cmd_tbl_t *cmdtp, int flag,
int argc, char * const argv[])
{
int ret = 0;
uint32_t width, height;
GoogleBinaryBlockHeader *gbbh;
BmpBlockHeader *bmph;
int screen = -1;
int local = 0;
if (argc > 1) {
screen = simple_strtoul(argv[1], NULL, 10);
if (argc > 2)
local = simple_strtoul(argv[2], NULL, 10);
}
if (VbExDisplayInit(&width, &height)) {
VbExDebug("Failed to init display.\n");
return 1;
}
VbExDebug("The screen dimensions is %ldx%ld.\n", width, height);
VbExDebug("Showing screens for localisation %d...\n", local);
mdelay(500);
if (screen == -1) {
ret |= show_screen_and_delay(VB_SCREEN_BLANK);
ret |= show_screen_and_delay(VB_SCREEN_DEVELOPER_WARNING);
ret |= show_screen_and_delay(VB_SCREEN_DEVELOPER_EGG);
ret |= show_screen_and_delay(VB_SCREEN_RECOVERY_REMOVE);
ret |= show_screen_and_delay(VB_SCREEN_RECOVERY_INSERT);
ret |= show_screen_and_delay(VB_SCREEN_RECOVERY_NO_GOOD);
ret |= show_screen_and_delay(VB_SCREEN_WAIT);
}
gbbh = (GoogleBinaryBlockHeader *)read_gbb_from_firmware();
if (gbbh) {
bmph = (BmpBlockHeader *)((uint8_t *)gbbh + gbbh->bmpfv_offset);
VbExDebug("Showing images...\n");
if (screen != -1) {
ret |= show_images_and_delay(bmph, local, screen);
} else {
for (screen = 0; screen < MAX_VALID_SCREEN_INDEX;
screen++)
ret |= show_images_and_delay(bmph, local,
screen);
}
} else {
ret = 1;
}
VbExDebug("Showing debug info...\n");
ret |= VbExDisplayDebugInfo("Hello!\n"
"This is a debug message.\n"
"Bye Bye!\n");
return ret;
}
static int do_vbexport_test_image(cmd_tbl_t *cmdtp, int flag,
int argc, char * const argv[])
{
uint32_t width, height;
GoogleBinaryBlockHeader *gbbh;
BmpBlockHeader *bmph;
ScreenLayout *screens;
int snum, locale = 0;
if (argc > 1)
locale = simple_strtoul(argv[1], NULL, 10);
if (VbExDisplayInit(&width, &height)) {
VbExDebug("Failed to init display.\n");
return 1;
}
gbbh = (GoogleBinaryBlockHeader *)read_gbb_from_firmware();
if (!gbbh) {
VbExDebug("Cannot read GBB\n");
return 1;
}
bmph = (BmpBlockHeader *)((uint8_t *)gbbh + gbbh->bmpfv_offset);
screens = (ScreenLayout *)(bmph + 1);
VbExDebug("Total screen layouts: %d\n", bmph->number_of_screenlayouts);
VbExDebug("Total localizations: %d\n", bmph->number_of_localizations);
VbExDebug("Total images: %d\n", bmph->number_of_imageinfos);
VbExDebug("bmpfv_offset=%#x, size=%#x\n", gbbh->bmpfv_offset,
gbbh->bmpfv_size);
if (locale >= bmph->number_of_localizations) {
VbExDebug("Selected localization is out of range\n");
return 1;
}
/* Select the correct block */
screens += locale * bmph->number_of_screenlayouts;
for (snum = 0; snum < bmph->number_of_screenlayouts; snum++) {
ScreenLayout *screen = &screens[snum];
ImageInfo *image;
int inum;
VbExDebug("Screen: %d\n", snum);
for (inum = 0; inum < MAX_IMAGE_IN_LAYOUT; inum++) {
if (!screen->images[inum].image_info_offset)
break;
image = (ImageInfo *)((uint8_t *)bmph +
screen->images[inum].image_info_offset);
VbExDebug(" Image: %d at %d, %d: offset=%#x, "
"size=%#x, end=%#x\n", inum,
screen->images[inum].x,
screen->images[inum].y,
gbbh->bmpfv_offset +
screen->images[inum].image_info_offset,
image->compressed_size,
gbbh->bmpfv_offset +
screen->images[inum].image_info_offset +
image->compressed_size);
show_image(image, screen->images[inum].x,
screen->images[inum].y);
}
mdelay(500);
}
return 0;
}
