moved everything to chookspace

2026-01-28 09:13:12 +11:00
parent 73754d02b2
commit c547d34d36
537 changed files with 39235 additions and 0 deletions
--- a/gnu-efi/apps/lfbgrid.c
+++ b/gnu-efi/apps/lfbgrid.c
@@ -0,0 +1,170 @@
+#include <efi.h>
+#include <efilib.h>
+
+extern EFI_GUID GraphicsOutputProtocol;
+
+#define be32_to_cpu(x) __builtin_bswap32(x)
+
+static void
+fill_boxes(UINT32 *PixelBuffer, UINT32 Width, UINT32 Height, UINT32 Pitch,
+	   EFI_GRAPHICS_PIXEL_FORMAT Format, EFI_PIXEL_BITMASK Info )
+{
+	UINT32 Red, Green;
+	UINT32 y, x, color;
+
+	switch(Format) {
+	case PixelRedGreenBlueReserved8BitPerColor:
+		Red = be32_to_cpu(0xff000000);
+		Green = be32_to_cpu(0x00ff0000);
+		break;
+	case PixelBlueGreenRedReserved8BitPerColor:
+		Red = be32_to_cpu(0x0000ff00);
+		Green = be32_to_cpu(0x00ff0000);
+		break;
+	case PixelBitMask:
+		Red = Info.RedMask;
+		Green = Info.GreenMask;
+		break;
+	case PixelBltOnly:
+		return;
+	default:
+		Print(L"Invalid pixel format\n");
+		return;
+	}
+
+	for (y = 0; y < Height; y++) {
+		color = ((y / 32) % 2 == 0) ? Red : Green;
+		for (x = 0; x < Width; x++) {
+			if (x % 32 == 0 && x != 0)
+				color = (color == Red) ? Green : Red;
+			PixelBuffer[y * Pitch + x] = color;
+		}
+	}
+}
+
+static void
+draw_boxes(EFI_GRAPHICS_OUTPUT_PROTOCOL *gop)
+{
+	int i, imax;
+	EFI_STATUS rc;
+	EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *info;
+	UINTN NumPixels;
+	UINT32 *PixelBuffer;
+	UINT32 CopySize, BufferSize;
+#if defined(__x86_64__) || defined(__aarch64__)
+	UINT64 FrameBufferAddr;
+#elif defined(__i386__) || defined(__arm__)
+	UINT32 FrameBufferAddr;
+#else
+#error YOUR ARCH HERE
+#endif
+
+	if (gop->Mode) {
+		imax = gop->Mode->MaxMode;
+	} else {
+		Print(L"gop->Mode is NULL\n");
+		return;
+	}
+
+	for (i = 0; i < imax; i++) {
+		UINTN SizeOfInfo;
+		rc = uefi_call_wrapper(gop->QueryMode, 4, gop, i, &SizeOfInfo,
+					&info);
+		if (EFI_ERROR(rc) && rc == EFI_NOT_STARTED) {
+			Print(L"gop->QueryMode() returned %r\n", rc);
+			Print(L"Trying to start GOP with SetMode().\n");
+			rc = uefi_call_wrapper(gop->SetMode, 2, gop,
+				gop->Mode ? gop->Mode->Mode : 0);
+			rc = uefi_call_wrapper(gop->QueryMode, 4, gop, i,
+				&SizeOfInfo, &info);
+		}
+
+		if (EFI_ERROR(rc)) {
+			Print(L"%d: Bad response from QueryMode: %r (%d)\n",
+			      i, rc, rc);
+			continue;
+		}
+
+		if (CompareMem(info, gop->Mode->Info, sizeof (*info)))
+			continue;
+
+		NumPixels = info->VerticalResolution * info->PixelsPerScanLine;
+		BufferSize = NumPixels * sizeof(UINT32);
+		if (BufferSize == gop->Mode->FrameBufferSize) {
+			CopySize = BufferSize;
+		} else {
+			CopySize = BufferSize < gop->Mode->FrameBufferSize ?
+				BufferSize : gop->Mode->FrameBufferSize;
+			Print(L"height * pitch * pixelsize = %lu buf fb size is %lu; using %lu\n",
+			      BufferSize, gop->Mode->FrameBufferSize, CopySize);
+		}
+
+		PixelBuffer = AllocatePool(BufferSize);
+		if (!PixelBuffer) {
+			Print(L"Allocation of 0x%08lx bytes failed.\n",
+			      sizeof(UINT32) * NumPixels);
+			return;
+		}
+
+		fill_boxes(PixelBuffer, info->HorizontalResolution,
+			   info->VerticalResolution, info->PixelsPerScanLine,
+			   info->PixelFormat, info->PixelInformation);
+
+		if (info->PixelFormat == PixelBltOnly) {
+			Print(L"No linear framebuffer on this device.\n");
+			return;
+		}
+#if defined(__x86_64__) || defined(__aarch64__)
+		FrameBufferAddr = (UINT64)gop->Mode->FrameBufferBase;
+#elif defined(__i386__) || defined(__arm__)
+		FrameBufferAddr = (UINT32)(UINT64)gop->Mode->FrameBufferBase;
+#else
+#error YOUR ARCH HERE
+#endif
+
+		CopyMem((VOID *)FrameBufferAddr, PixelBuffer, CopySize);
+		return;
+	}
+	Print(L"Never found the active video mode?\n");
+}
+
+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)) {
+		Print(L"Could not locate GOP: %r\n", rc);
+		return rc;
+	}
+
+	if (!gop) {
+		Print(L"LocateProtocol(GOP, &gop) returned %r but GOP is NULL\n", rc);
+		return EFI_UNSUPPORTED;
+	}
+
+	draw_boxes(gop);
+
+	SetWatchdog(0);
+	return EFI_SUCCESS;
+}