diff options
| author | Feng Tian <feng.tian@intel.com> | 2015-08-06 07:13:16 +0000 |
|---|---|---|
| committer | erictian <erictian@Edk2> | 2015-08-06 07:13:16 +0000 |
| commit | 3cf6450eb581961e3618d29117b09b22605c99cd (patch) | |
| tree | 8f3e9b0a9fb59ddb22310fcf2f092c797c833e59 /MdeModulePkg/Bus/Pci/EhciDxe | |
| parent | ea0f431cec51247658901a4f65ae76d6bbdd96e9 (diff) | |
| download | edk2-platforms-3cf6450eb581961e3618d29117b09b22605c99cd.tar.xz | |
MdeModulePkg/Usb: Adjust TPL to not block async transfer during usb enum.
EDKII usb stack is using a TPL_CALLBACK timer to monitor async transfer
request and signal event if it's done. As usb enumeration and usb mass
storage block i/o read/write runs on TPL_CALLBACK and TPL_NOTIFY level
respectively, It blocks usb async transfer requests, usually usb mouse
/use kb, getting time to run.
Without this change, user couldn't get usb mouse/kb state in time (will
show a little lag from UI view) when there is other usb transactions, such
as a new usb device inserted.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Feng Tian <feng.tian@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18169 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'MdeModulePkg/Bus/Pci/EhciDxe')
| -rw-r--r-- | MdeModulePkg/Bus/Pci/EhciDxe/Ehci.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/MdeModulePkg/Bus/Pci/EhciDxe/Ehci.c b/MdeModulePkg/Bus/Pci/EhciDxe/Ehci.c index 315f2cbbdb..4e9e05f0e4 100644 --- a/MdeModulePkg/Bus/Pci/EhciDxe/Ehci.c +++ b/MdeModulePkg/Bus/Pci/EhciDxe/Ehci.c @@ -1615,7 +1615,7 @@ EhcCreateUsb2Hc ( //
Status = gBS->CreateEvent (
EVT_TIMER | EVT_NOTIFY_SIGNAL,
- TPL_CALLBACK,
+ TPL_NOTIFY,
EhcMonitorAsyncRequests,
Ehc,
&Ehc->PollTimer
|