From c261b8de0504fd37af99c61cdda248f312124034 Mon Sep 17 00:00:00 2001
From: Peter Jones <pjones@redhat.com>
Date: Thu, 16 Jun 2011 16:10:27 -0400
Subject: [PATCH] Handle un-initialized GOP.
---
apps/modelist.c | 27 +++++++++++++++++++++++++++
1 files changed, 27 insertions(+), 0 deletions(-)
diff --git a/apps/modelist.c b/apps/modelist.c
index c4a4b1a..8d816d1 100644
--- a/apps/modelist.c
+++ b/apps/modelist.c
@@ -3,6 +3,26 @@
extern EFI_GUID GraphicsOutputProtocol;
+static int memcmp(const void *s1, const void *s2, UINTN n)
+{
+ const unsigned char *c1 = s1, *c2 = s2;
+ int d = 0;
+
+ if (!s1 && !s2)
+ return 0;
+ if (s1 && !s2)
+ return 1;
+ if (!s1 && s2)
+ return -1;
+
+ while (n--) {
+ d = (int)*c1++ - (int)*c2++;
+ if (d)
+ break;
+ }
+ return d;
+}
+
static void
print_modes(EFI_GRAPHICS_OUTPUT_PROTOCOL *gop)
{
@@ -17,6 +37,13 @@ print_modes(EFI_GRAPHICS_OUTPUT_PROTOCOL *gop)
UINTN SizeOfInfo;
rc = uefi_call_wrapper(gop->QueryMode, 4, gop, i, &SizeOfInfo,
&info);
+ if (EFI_ERROR(rc) && rc == EFI_NOT_STARTED) {
+ rc = uefi_call_wrapper(gop->SetMode, 2, gop,
+ gop->Mode->Mode);
+ rc = uefi_call_wrapper(gop->QueryMode, 4, gop, i,
+ &SizeOfInfo, &info);
+ }
+
if (EFI_ERROR(rc)) {
CHAR16 Buffer[64];
StatusToString(Buffer, rc);
--
1.7.4.4
