diff options
| author | Simon Glass | 2023-03-10 12:47:16 -0800 |
|---|---|---|
| committer | Heinrich Schuchardt | 2023-03-13 13:53:01 +0100 |
| commit | f62229227ca24c0f491d02cf2ae69da7136abe18 (patch) | |
| tree | 7ed45d40200ec1c5f3783686f5bab48c3e18ee7d /drivers/video | |
| parent | 4f9a8f33f0ab5acdcfa7fafc29bb2a16883e9801 (diff) | |
efi: Support copy framebuffer
Add support for this to EFI in case it becomes useful. At present it just
slows things down. You can enable CONFIG_VIDEO_COPY to turn it on.
Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'drivers/video')
| -rw-r--r-- | drivers/video/efi.c | 26 |
1 files changed, 25 insertions, 1 deletions
diff --git a/drivers/video/efi.c b/drivers/video/efi.c index 169637c2882..28ac15ff61b 100644 --- a/drivers/video/efi.c +++ b/drivers/video/efi.c @@ -129,7 +129,6 @@ static int save_vesa_mode(struct vesa_mode_info *vesa, u64 *fbp) struct efi_gop_mode_info *info; int ret; - printf("start\n"); if (IS_ENABLED(CONFIG_EFI_APP)) ret = get_mode_info(vesa, fbp, &info); else @@ -207,6 +206,30 @@ err: return ret; } +static int efi_video_bind(struct udevice *dev) +{ + if (IS_ENABLED(CONFIG_VIDEO_COPY)) { + struct video_uc_plat *plat = dev_get_uclass_plat(dev); + struct vesa_mode_info vesa; + int ret; + u64 fb; + + /* + * Initialise vesa_mode_info structure so we can figure out the + * required framebuffer size. If something goes wrong, just do + * without a copy framebuffer + */ + ret = save_vesa_mode(&vesa, &fb); + if (!ret) { + /* this is not reached if the EFI call failed */ + plat->copy_size = vesa.bytes_per_scanline * + vesa.y_resolution; + } + } + + return 0; +} + static const struct udevice_id efi_video_ids[] = { { .compatible = "efi-fb" }, { } @@ -216,5 +239,6 @@ U_BOOT_DRIVER(efi_video) = { .name = "efi_video", .id = UCLASS_VIDEO, .of_match = efi_video_ids, + .bind = efi_video_bind, .probe = efi_video_probe, }; |