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("\n frame 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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