src/lib/bootmode.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <assert.h>
   4 #include <bootmode.h>
   5 #include <security/vboot/misc.h>
   6 #include <vb2_api.h>
   7
   8 static int gfx_init_done = -1;
   9
  10 int gfx_get_init_done(void)
  11 {
  12         if (gfx_init_done < 0)
  13                 return 0;
  14         return gfx_init_done;
  15 }
  16
  17 void gfx_set_init_done(int done)
  18 {
  19         gfx_init_done = done;
  20 }
  21
  22 int display_init_required(void)
  23 {
  24         /* Need display for showing splash screen. */
  25         if (CONFIG(BMP_LOGO))
  26                 return 1;
  27
  28         /* For vboot, honor VB2_CONTEXT_DISPLAY_INIT. */
  29         if (CONFIG(VBOOT)) {
  30                 /* Must always select MUST_REQUEST_DISPLAY when using this
  31                    function. */
  32                 if (!CONFIG(VBOOT_MUST_REQUEST_DISPLAY))
  33                         dead_code();
  34                 return vboot_get_context()->flags & VB2_CONTEXT_DISPLAY_INIT;
  35         }
  36
  37         /* By default always initialize display. */
  38         return 1;
  39 }