diff options
Diffstat (limited to 'drivers/video/efi.c')
-rw-r--r-- | drivers/video/efi.c | 45 |
1 files changed, 37 insertions, 8 deletions
diff --git a/drivers/video/efi.c b/drivers/video/efi.c index c248bd352a..5f9031f2ec 100644 --- a/drivers/video/efi.c +++ b/drivers/video/efi.c @@ -50,6 +50,28 @@ static void efi_find_pixel_bits(u32 mask, u8 *pos, u8 *size) *size = len; } +static int get_mode_info(struct vesa_mode_info *vesa) +{ + efi_guid_t efi_gop_guid = EFI_GRAPHICS_OUTPUT_PROTOCOL_GUID; + struct efi_boot_services *boot = efi_get_boot(); + struct efi_gop_mode *mode; + struct efi_gop *gop; + int ret; + + if (!boot) + return log_msg_ret("sys", -ENOSYS); + ret = boot->locate_protocol(&efi_gop_guid, NULL, (void **)&gop); + if (ret) + return log_msg_ret("prot", -ENOTSUPP); + + mode = gop->mode; + vesa->phys_base_ptr = mode->fb_base; + vesa->x_resolution = mode->info->width; + vesa->y_resolution = mode->info->height; + + return 0; +} + static int save_vesa_mode(struct vesa_mode_info *vesa) { struct efi_entry_gopmode *mode; @@ -57,16 +79,23 @@ static int save_vesa_mode(struct vesa_mode_info *vesa) int size; int ret; - ret = efi_info_get(EFIET_GOP_MODE, (void **)&mode, &size); - if (ret == -ENOENT) { - debug("efi graphics output protocol mode not found\n"); - return -ENXIO; + if (IS_ENABLED(CONFIG_EFI_APP)) { + ret = get_mode_info(vesa); + if (ret) { + printf("EFI graphics output protocol not found\n"); + return -ENXIO; + } + } else { + ret = efi_info_get(EFIET_GOP_MODE, (void **)&mode, &size); + if (ret == -ENOENT) { + printf("EFI graphics output protocol mode not found\n"); + return -ENXIO; + } + vesa->phys_base_ptr = mode->fb_base; + vesa->x_resolution = mode->info->width; + vesa->y_resolution = mode->info->height; } - vesa->phys_base_ptr = mode->fb_base; - vesa->x_resolution = mode->info->width; - vesa->y_resolution = mode->info->height; - if (mode->info->pixel_format < EFI_GOT_BITMASK) { fbinfo = &efi_framebuffer_format_map[mode->info->pixel_format]; vesa->red_mask_size = fbinfo->red.size; |