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efi_loader: SetMode() must blank screen

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EFI_GRAPHICS_OUTPUT_PROTOCOL.SetMode() must blank the screen.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
This commit is contained in:
Heinrich Schuchardt 2019-06-15 14:52:53 +02:00
parent 3c783bfbfb
commit 40c8f112f5
1 changed files with 38 additions and 12 deletions
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50
lib/efi_loader/efi_gop.c
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@ -62,18 +62,6 @@ out:
return EFI_EXIT(ret); return EFI_EXIT(ret);
} }
static efi_status_t EFIAPI gop_set_mode(struct efi_gop *this, u32 mode_number)
{
efi_status_t ret = EFI_SUCCESS;
EFI_ENTRY("%p, %x", this, mode_number);
if (mode_number)
ret = EFI_UNSUPPORTED;
return EFI_EXIT(ret);
}
static __always_inline struct efi_gop_pixel efi_vid16_to_blt_col(u16 vid) static __always_inline struct efi_gop_pixel efi_vid16_to_blt_col(u16 vid)
{ {
struct efi_gop_pixel blt = { struct efi_gop_pixel blt = {
@ -322,6 +310,44 @@ static efi_status_t gop_blt_vid_to_buf(struct efi_gop *this,
dx, dy, width, height, delta, vid_bpp); dx, dy, width, height, delta, vid_bpp);
} }
/**
* gop_set_mode() - set graphical output mode
*
* This function implements the SetMode() service.
*
* See the Unified Extensible Firmware Interface (UEFI) specification for
* details.
*
* @this: the graphical output protocol
* @model_number: the mode to be set
* Return: status code
*/
static efi_status_t EFIAPI gop_set_mode(struct efi_gop *this, u32 mode_number)
{
struct efi_gop_obj *gopobj;
struct efi_gop_pixel buffer = {0, 0, 0, 0};
efi_uintn_t vid_bpp;
efi_status_t ret = EFI_SUCCESS;
EFI_ENTRY("%p, %x", this, mode_number);
if (!this) {
ret = EFI_INVALID_PARAMETER;
goto out;
}
if (mode_number) {
ret = EFI_UNSUPPORTED;
goto out;
}
gopobj = container_of(this, struct efi_gop_obj, ops);
vid_bpp = gop_get_bpp(this);
ret = gop_blt_video_fill(this, &buffer, EFI_BLT_VIDEO_FILL, 0, 0, 0, 0,
gopobj->info.width, gopobj->info.height, 0,
vid_bpp);
out:
return EFI_EXIT(ret);
}
/* /*
* Copy rectangle. * Copy rectangle.
* *