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For USB mass storage, READ_FORMAT_CAPACITIES command returns wrong value for USB2.0 device. 

In order to fix this issue, we change the retry policy. Try old command before new command.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@2155 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
xli24 2006-12-30 03:21:44 +00:00
parent becca880dc
commit ea78388e1a
2 changed files with 6 additions and 6 deletions
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4
EdkModulePkg/Bus/Usb/UsbMassStorage/Dxe/UsbMassStorage.h
View File

@ -33,8 +33,8 @@ Revision History
#define PROTOCOL_CBI0 0
#define PROTOCOL_CBI1 1
#define USBFLOPPY 1
#define USBFLOPPY2 2 // for those that use ReadCapacity(0x25) command to retrieve media capacity
#define USBFLOPPY 1 // for those that use ReadCapacity(0x25) command to retrieve media capacity
#define USBFLOPPY2 2 // for those that use ReadFormatCapacity(0x23) command to retrieve media capacity
#define USBCDROM 3
#define USB_FLOPPY_DEV_SIGNATURE EFI_SIGNATURE_32 ('u', 'f', 'l', 'p')

8
EdkModulePkg/Bus/Usb/UsbMassStorage/Dxe/UsbMassStorageHelper.c
View File

@ -999,26 +999,26 @@ UsbFloppyDetectMedia (
Status = USBFloppyReadCapacity (UsbFloppyDevice);
break;
case USBFLOPPY:
case USBFLOPPY2:
UsbMassStorageModeSense (UsbFloppyDevice);
Status = USBFloppyReadFormatCapacity (UsbFloppyDevice);
if (EFI_ERROR (Status) || !UsbFloppyDevice->BlkMedia.MediaPresent) {
//
// retry the ReadCapacity command
//
UsbFloppyDevice->DeviceType = USBFLOPPY2;
UsbFloppyDevice->DeviceType = USBFLOPPY;
Status = EFI_DEVICE_ERROR;
}
break;
case USBFLOPPY2:
case USBFLOPPY:
UsbMassStorageModeSense (UsbFloppyDevice);
Status = USBFloppyReadCapacity (UsbFloppyDevice);
if (EFI_ERROR (Status)) {
//
// retry the ReadFormatCapacity command
//
UsbFloppyDevice->DeviceType = USBFLOPPY;
UsbFloppyDevice->DeviceType = USBFLOPPY2;
}
//
// force the BlockSize to be 0x200.