diff options
Diffstat (limited to 'MdeModulePkg')
| -rw-r--r-- | MdeModulePkg/Universal/SerialDxe/SerialIo.c | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/MdeModulePkg/Universal/SerialDxe/SerialIo.c b/MdeModulePkg/Universal/SerialDxe/SerialIo.c index d2383e56dd..43d33dba0c 100644 --- a/MdeModulePkg/Universal/SerialDxe/SerialIo.c +++ b/MdeModulePkg/Universal/SerialDxe/SerialIo.c @@ -465,11 +465,25 @@ SerialRead ( )
{
UINTN Count;
+ UINTN TimeOut;
Count = 0;
- if (SerialPortPoll ()) {
- Count = SerialPortRead (Buffer, *BufferSize);
+ while (Count < *BufferSize) {
+ TimeOut = 0;
+ while (TimeOut < mSerialIoMode.Timeout) {
+ if (SerialPortPoll ()) {
+ break;
+ }
+ gBS->Stall (10);
+ TimeOut += 10;
+ }
+ if (TimeOut >= mSerialIoMode.Timeout) {
+ break;
+ }
+ SerialPortRead (Buffer, 1);
+ Count++;
+ Buffer = (VOID *) ((UINT8 *) Buffer + 1);
}
if (Count != *BufferSize) {
|