https://bugzilla.tianocore.org/show_bug.cgi?id=782
Update the Request Sense check for the Request Sense Key of
USB_BOOT_SENSE_UNIT_ATTENTION. For this Sense Key, the
Additional Sense Key to EFI_STATUS mappings are:
USB_BOOT_ASC_MEDIA_CHANGE -> EFI_MEDIA_CHANGE
USB_BOOT_ASC_NOT_READY -> EFI_NOT_READY
USB_BOOT_ASC_NO_MEDIA -> EFI_NOT_READY
All others -> EFI_DEVICE_ERROR
A USB flash drive is returning Request Sense Key of
USB_BOOT_SENSE_UNIT_ATTENTION and an Additional Sense Key of
USB_BOOT_ASC_NO_MEDIA for a few seconds before returning an
Additional Sense Key of USB_BOOT_ASC_MEDIA_CHANGE.
The current logic treats this initial Request Sense info as an
error and reties the command 5 times before failing completely.
With this change the USB Flash Drive works correctly.
Cc: Star Zeng <star.z...@intel.com>
Cc: Eric Dong <eric.d...@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Michael D Kinney <michael.d.kin...@intel.com>
---
MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassBoot.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassBoot.c
b/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassBoot.c
index 2eb30f0c5f..a8b6a1c5f1 100644
--- a/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassBoot.c
+++ b/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassBoot.c
@@ -120,6 +120,10 @@ UsbBootRequestSense (
Status = EFI_MEDIA_CHANGED;
Media->ReadOnly = FALSE;
Media->MediaId++;
+ } else if (SenseData.Asc == USB_BOOT_ASC_NOT_READY) {
+ Status = EFI_NOT_READY;
+ } else if (SenseData.Asc == USB_BOOT_ASC_NO_MEDIA) {
+ Status = EFI_NOT_READY;
}
break;
--
2.14.2.windows.3
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