diff options
Diffstat (limited to 'MdeModulePkg/Universal/Console/TerminalDxe/TerminalConIn.c')
| -rw-r--r-- | MdeModulePkg/Universal/Console/TerminalDxe/TerminalConIn.c | 24 |
1 files changed, 16 insertions, 8 deletions
diff --git a/MdeModulePkg/Universal/Console/TerminalDxe/TerminalConIn.c b/MdeModulePkg/Universal/Console/TerminalDxe/TerminalConIn.c index 6d0899d..b82ff3d 100644 --- a/MdeModulePkg/Universal/Console/TerminalDxe/TerminalConIn.c +++ b/MdeModulePkg/Universal/Console/TerminalDxe/TerminalConIn.c @@ -15,7 +15,6 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. #include "Terminal.h"
-
/**
Reads the next keystroke from the input device. The WaitForKey Event can
be used to test for existance of a keystroke via WaitForEvent () call.
@@ -601,6 +600,9 @@ TerminalConInCheckForKey ( SerialInTimeOut = 0;
if (Mode->BaudRate != 0) {
+ //
+ // According to BAUD rate to calculate the timeout value.
+ //
SerialInTimeOut = (1 + Mode->DataBits + Mode->StopBits) * 2 * 1000000 / (UINTN) Mode->BaudRate;
}
@@ -621,11 +623,11 @@ TerminalConInCheckForKey ( }
}
//
- // check whether serial buffer is empty
+ // Check whether serial buffer is empty.
//
Status = SerialIo->GetControl (SerialIo, &Control);
- if (0 != (Control & EFI_SERIAL_INPUT_BUFFER_EMPTY)) {
+ if ((Control & EFI_SERIAL_INPUT_BUFFER_EMPTY) != 0) {
//
// Translate all the raw data in RawFIFO into EFI Key,
// according to different terminal type supported.
@@ -701,6 +703,9 @@ GetOneKeyFromSerial ( Size = 1;
*Output = 0;
+ //
+ // Read one key from serial I/O device.
+ //
Status = SerialIo->Read (SerialIo, &Size, Output);
if (EFI_ERROR (Status)) {
@@ -1119,36 +1124,39 @@ UnicodeToEfiKeyFlushState ( {
EFI_INPUT_KEY Key;
- if (0 != (TerminalDevice->InputState & INPUT_STATE_ESC)) {
+ if ((TerminalDevice->InputState & INPUT_STATE_ESC) != 0) {
Key.ScanCode = SCAN_ESC;
Key.UnicodeChar = 0;
EfiKeyFiFoInsertOneKey (TerminalDevice, Key);
}
- if (0 != (TerminalDevice->InputState & INPUT_STATE_CSI)) {
+ if ((TerminalDevice->InputState & INPUT_STATE_CSI) != 0) {
Key.ScanCode = SCAN_NULL;
Key.UnicodeChar = CSI;
EfiKeyFiFoInsertOneKey (TerminalDevice, Key);
}
- if (0 != (TerminalDevice->InputState & INPUT_STATE_LEFTOPENBRACKET)) {
+ if ((TerminalDevice->InputState & INPUT_STATE_LEFTOPENBRACKET) != 0) {
Key.ScanCode = SCAN_NULL;
Key.UnicodeChar = LEFTOPENBRACKET;
EfiKeyFiFoInsertOneKey (TerminalDevice, Key);
}
- if (0 != (TerminalDevice->InputState & INPUT_STATE_O)) {
+ if ((TerminalDevice->InputState & INPUT_STATE_O) != 0) {
Key.ScanCode = SCAN_NULL;
Key.UnicodeChar = 'O';
EfiKeyFiFoInsertOneKey (TerminalDevice, Key);
}
- if (0 != (TerminalDevice->InputState & INPUT_STATE_2)) {
+ if ((TerminalDevice->InputState & INPUT_STATE_2) != 0) {
Key.ScanCode = SCAN_NULL;
Key.UnicodeChar = '2';
EfiKeyFiFoInsertOneKey (TerminalDevice, Key);
}
+ //
+ // Cancel the timer.
+ //
gBS->SetTimer (
TerminalDevice->TwoSecondTimeOut,
TimerCancel,
|