From d29825db356c7ea240e62404c5d3422c01c18bd4 Mon Sep 17 00:00:00 2001 From: Peter Jones Date: Fri, 10 Sep 2010 16:04:38 -0400 Subject: [PATCH 3/7] Add "modelist" test app. This lists video modes the GOP driver is showing us. --- apps/Makefile | 2 +- apps/modelist.c | 87 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 88 insertions(+), 1 deletion(-) create mode 100644 apps/modelist.c diff --git a/apps/Makefile b/apps/Makefile index 6bda7ea..45bc4ac 100644 --- a/apps/Makefile +++ b/apps/Makefile @@ -58,7 +58,7 @@ LDFLAGS += -T $(LDSCRIPT) -shared -Bsymbolic -L../lib -L../gnuefi $(CRTOBJS) LOADLIBES = -lefi -lgnuefi $(shell $(CC) $(ARCH3264) -print-libgcc-file-name) FORMAT = efi-app-$(ARCH) -TARGETS = t.efi t2.efi t3.efi t4.efi t5.efi t6.efi printenv.efi t7.efi tcc.efi route80h.efi +TARGETS = t.efi t2.efi t3.efi t4.efi t5.efi t6.efi printenv.efi t7.efi tcc.efi route80h.efi modelist.efi all: $(TARGETS) diff --git a/apps/modelist.c b/apps/modelist.c new file mode 100644 index 0000000..c4a4b1a --- /dev/null +++ b/apps/modelist.c @@ -0,0 +1,87 @@ +#include +#include + +extern EFI_GUID GraphicsOutputProtocol; + +static void +print_modes(EFI_GRAPHICS_OUTPUT_PROTOCOL *gop) +{ + int i, imax; + EFI_STATUS rc; + + imax = gop->Mode->MaxMode; + + Print(L"GOP reports MaxMode %d\n", imax); + for (i = 0; i < imax; i++) { + EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *info; + UINTN SizeOfInfo; + rc = uefi_call_wrapper(gop->QueryMode, 4, gop, i, &SizeOfInfo, + &info); + if (EFI_ERROR(rc)) { + CHAR16 Buffer[64]; + StatusToString(Buffer, rc); + Print(L"%d: Bad response from QueryMode: %s (%d)\n", + i, Buffer, rc); + continue; + } + Print(L"%c%d: %dx%d ", memcmp(info,gop->Mode->Info,sizeof(*info)) == 0 ? '*' : ' ', i, + info->HorizontalResolution, + info->VerticalResolution); + switch(info->PixelFormat) { + case PixelRedGreenBlueReserved8BitPerColor: + Print(L"RGBR"); + break; + case PixelBlueGreenRedReserved8BitPerColor: + Print(L"BGRR"); + break; + case PixelBitMask: + Print(L"R:%08x G:%08x B:%08x X:%08x", + info->PixelInformation.RedMask, + info->PixelInformation.GreenMask, + info->PixelInformation.BlueMask, + info->PixelInformation.ReservedMask); + break; + case PixelBltOnly: + Print(L"(blt only)"); + break; + default: + Print(L"(Invalid pixel format)"); + break; + } + Print(L" pitch %d\n", info->PixelsPerScanLine); + } +} + +static EFI_STATUS +SetWatchdog(UINTN seconds) +{ + EFI_STATUS rc; + rc = uefi_call_wrapper(BS->SetWatchdogTimer, 4, seconds, 0x1ffff, + 0, NULL); + if (EFI_ERROR(rc)) { + CHAR16 Buffer[64]; + StatusToString(Buffer, rc); + Print(L"Bad response from QueryMode: %s (%d)\n", Buffer, rc); + } + return rc; +} + +EFI_STATUS +efi_main (EFI_HANDLE image_handle, EFI_SYSTEM_TABLE *systab) +{ + EFI_STATUS rc; + EFI_GRAPHICS_OUTPUT_PROTOCOL *gop; + + InitializeLib(image_handle, systab); + + SetWatchdog(10); + + rc = LibLocateProtocol(&GraphicsOutputProtocol, (void **)&gop); + if (EFI_ERROR(rc)) + return rc; + + print_modes(gop); + + SetWatchdog(0); + return EFI_SUCCESS; +} -- 1.7.10.4