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Added a PCD to turn on/off probing Block IO devices to detect add/remove/change. FAT driver does not do this so if the shell does not do this you will get dir hits on an SD Card that has been removed. Default is ON. I moved this feature from device command to main command loop so it gets done after you type return before your command is processed.

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git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10479 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
andrewfish
2010-05-11 00:09:48 +00:00
parent 9f6b977f66
commit 884366cf56
4 changed files with 48 additions and 22 deletions
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21
EmbeddedPkg/Ebl/EfiDevice.c
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@ -210,34 +210,13 @@ EblDeviceCmd (
UINTN Index;
UINTN CurrentRow;
UINTN Max;
EFI_OPEN_FILE *File;
CurrentRow = 0;
// Need to call here to make sure Device Counts are valid
EblUpdateDeviceLists ();
//
// Probe for media insertion/removal in removable media devices
//
Max = EfiGetDeviceCounts (EfiOpenBlockIo);
if (Max != 0) {
for (Index = 0; Index < Max; Index++) {
File = EfiDeviceOpenByType (EfiOpenBlockIo, Index);
if (File != NULL) {
if (File->FsBlockIoMedia->RemovableMedia) {
// Probe to see if media is present (or not) or media changed
// this causes the ReinstallProtocolInterface() to fire in the
// block io driver to update the system about media change events
File->FsBlockIo->ReadBlocks (File->FsBlockIo, File->FsBlockIo->Media->MediaId, (EFI_LBA)0, 0, NULL);
}
EfiClose (File);
}
}
}
// Now we can print out the info...
Max = EfiGetDeviceCounts (EfiOpenFirmwareVolume);
if (Max != 0) {
AsciiPrint ("Firmware Volume Devices:\n");