Author: marcel
Date: Sun Aug 30 01:39:59 2015
New Revision: 287299
URL: https://svnweb.freebsd.org/changeset/base/287299
Log:
Add a gop command to help diagnose VT efifb problems. The gop
command has the following sub-commands:
list- list all possible modes (paged)
get - return the current mode
set mode - set the current mode to mode
Modified:
head/sys/boot/efi/loader/arch/amd64/framebuffer.c
Modified: head/sys/boot/efi/loader/arch/amd64/framebuffer.c
==
--- head/sys/boot/efi/loader/arch/amd64/framebuffer.c Sat Aug 29 20:41:09
2015(r287298)
+++ head/sys/boot/efi/loader/arch/amd64/framebuffer.c Sun Aug 30 01:39:59
2015(r287299)
@@ -29,6 +29,7 @@
#include sys/cdefs.h
__FBSDID($FreeBSD$);
+#include bootstrap.h
#include stand.h
#include efi.h
@@ -83,3 +84,97 @@ efi_find_framebuffer(struct efi_fb *efif
}
return (0);
}
+
+COMMAND_SET(gop, gop, graphics output protocol, command_gop);
+
+static void
+command_gop_display(u_int mode, EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *info)
+{
+
+ printf(mode %u: %ux%u, stride=%u, color=, mode,
+ info-HorizontalResolution, info-VerticalResolution,
+ info-PixelsPerScanLine);
+ switch (info-PixelFormat) {
+ case PixelRedGreenBlueReserved8BitPerColor:
+ printf(32-bit (RGB));
+ break;
+ case PixelBlueGreenRedReserved8BitPerColor:
+ printf(32-bit (BGR));
+ break;
+ case PixelBitMask:
+ printf(mask (R=%x, G=%x, B=%x, X=%x),
+ info-PixelInformation.RedMask,
+ info-PixelInformation.GreenMask,
+ info-PixelInformation.BlueMask,
+ info-PixelInformation.ReservedMask);
+ break;
+ case PixelBltOnly:
+ printf(unsupported (blt only));
+ break;
+ default:
+ printf(unsupported (unknown));
+ break;
+ }
+}
+
+static int
+command_gop(int argc, char *argv[])
+{
+ EFI_GRAPHICS_OUTPUT *gop;
+ EFI_STATUS status;
+ u_int mode;
+
+ status = BS-LocateProtocol(gop_guid, NULL, (VOID **)gop);
+ if (EFI_ERROR(status)) {
+ sprintf(command_errbuf, %s: Graphics Output Protocol not
+ present (error=%lu), argv[0], status ~EFI_ERROR_MASK);
+ return (CMD_ERROR);
+ }
+
+ if (argc == 1)
+ goto usage;
+
+ if (!strcmp(argv[1], set)) {
+ char *cp;
+
+ if (argc != 3)
+ goto usage;
+ mode = strtol(argv[2], cp, 0);
+ if (cp[0] != '\0') {
+ sprintf(command_errbuf, mode is an integer);
+ return (CMD_ERROR);
+ }
+ status = gop-SetMode(gop, mode);
+ if (EFI_ERROR(status)) {
+ sprintf(command_errbuf, %s: Unable to set mode to
+ %u (error=%lu), argv[0], mode,
+ status ~EFI_ERROR_MASK);
+ return (CMD_ERROR);
+ }
+ } else if (!strcmp(argv[1], get)) {
+ command_gop_display(gop-Mode-Mode, gop-Mode-Info);
+ printf(\nframe buffer: address=%jx, size=%lx\n,
+ (uintmax_t)gop-Mode-FrameBufferBase,
+ gop-Mode-FrameBufferSize);
+ } else if (!strcmp(argv[1], list)) {
+ EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *info;
+ UINTN infosz;
+
+ pager_open();
+ for (mode = 0; mode gop-Mode-MaxMode; mode++) {
+ status = gop-QueryMode(gop, mode, infosz, info);
+ if (EFI_ERROR(status))
+ continue;
+ command_gop_display(mode, info);
+ if (pager_output(\n))
+ break;
+ }
+ pager_close();
+ }
+ return (CMD_OK);
+
+ usage:
+ sprintf(command_errbuf, usage: %s [list | get | set mode],
+ argv[0]);
+ return (CMD_ERROR);
+}
___
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