src/lib/bmp_logo.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <acpi/acpi.h>
   4 #include <bootsplash.h>
   5 #include <cbfs.h>
   6 #include <cbmem.h>
   7 #include <stdint.h>
   8
   9 static const struct cbmem_entry *logo_entry;
  10
  11 void bmp_load_logo(uint32_t *logo_ptr, uint32_t *logo_size)
  12 {
  13         void *logo_buffer;
  14
  15         /* CBMEM is locked for S3 resume path. */
  16         if (acpi_is_wakeup_s3())
  17                 return;
  18
  19         logo_entry = cbmem_entry_add(CBMEM_ID_FSP_LOGO, 1 * MiB);
  20         if (!logo_entry)
  21                 return;
  22
  23         logo_buffer = cbmem_entry_start(logo_entry);
  24         if (!logo_buffer)
  25                 return;
  26
  27         *logo_size = cbfs_load("logo.bmp", logo_buffer, 1 * MiB);
  28         if (*logo_size)
  29                 *logo_ptr = (uintptr_t)logo_buffer;
  30 }
  31
  32 void bmp_release_logo(void)
  33 {
  34         if (logo_entry)
  35                 cbmem_entry_remove(logo_entry);
  36         logo_entry = NULL;
  37 }