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fix(core): TS5 - wait for frame to appear on display before raising backlight

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This commit is contained in:
tychovrahe 2024-12-11 22:51:13 +01:00
parent abe2ffe39e
commit 64e6ff9408
2 changed files with 8 additions and 1 deletions
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8
core/embed/io/display/st-7789/display_fb.c
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@ -120,6 +120,8 @@ void display_physical_fb_clear(void) {
static void bg_copy_callback(void) {
display_driver_t *drv = &g_display_driver;
drv->update_pending = 1;
fb_queue_put(&drv->empty_frames, fb_queue_take(&drv->ready_frames));
}
@ -129,6 +131,10 @@ static void display_te_interrupt_handler(void) {
__HAL_GPIO_EXTI_CLEAR_FLAG(DISPLAY_TE_PIN);
if (drv->update_pending > 0) {
drv->update_pending--;
}
int16_t fb_idx = fb_queue_peek(&drv->ready_frames);
if (fb_idx >= 0) {
@ -241,7 +247,7 @@ void display_ensure_refreshed(void) {
do {
copy_pending = !fb_queue_empty(&drv->ready_frames);
__WFI();
} while (copy_pending);
} while (copy_pending || drv->update_pending);
// Wait until the display is fully refreshed
// (TE signal is low when the display is updating)

1
core/embed/io/display/st-7789/display_internal.h
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@ -25,6 +25,7 @@ typedef struct {
// Current display orientation (0, 90, 180, 270)
int orientation_angle;
int update_pending;
} display_driver_t;