diff options
Diffstat (limited to 'MdeModulePkg/Universal/Console/TerminalDxe/TerminalConIn.c')
| -rw-r--r-- | MdeModulePkg/Universal/Console/TerminalDxe/TerminalConIn.c | 93 |
1 files changed, 92 insertions, 1 deletions
diff --git a/MdeModulePkg/Universal/Console/TerminalDxe/TerminalConIn.c b/MdeModulePkg/Universal/Console/TerminalDxe/TerminalConIn.c index 227df85f69..fbaf33ba45 100644 --- a/MdeModulePkg/Universal/Console/TerminalDxe/TerminalConIn.c +++ b/MdeModulePkg/Universal/Console/TerminalDxe/TerminalConIn.c @@ -1223,7 +1223,8 @@ UnicodeToEfiKey ( continue;
}
- if (UnicodeChar == 'O' && TerminalDevice->TerminalType == VT100TYPE) {
+ if (UnicodeChar == 'O' && (TerminalDevice->TerminalType == VT100TYPE ||
+ TerminalDevice->TerminalType == TTYTERMTYPE)) {
TerminalDevice->InputState |= INPUT_STATE_O;
TerminalDevice->ResetState = RESET_STATE_DEFAULT;
continue;
@@ -1371,6 +1372,22 @@ UnicodeToEfiKey ( default :
break;
}
+ } else if (TerminalDevice->TerminalType == TTYTERMTYPE) {
+ /* Also accept VT100 escape codes for F1-F4 for TTY term */
+ switch (UnicodeChar) {
+ case 'P':
+ Key.ScanCode = SCAN_F1;
+ break;
+ case 'Q':
+ Key.ScanCode = SCAN_F2;
+ break;
+ case 'R':
+ Key.ScanCode = SCAN_F3;
+ break;
+ case 'S':
+ Key.ScanCode = SCAN_F4;
+ break;
+ }
}
if (Key.ScanCode != SCAN_NULL) {
@@ -1514,6 +1531,21 @@ UnicodeToEfiKey ( }
}
+ /*
+ * The VT220 escape codes that the TTY terminal accepts all have
+ * numeric codes, and there are no ambiguous prefixes shared with
+ * other terminal types.
+ */
+ if (TerminalDevice->TerminalType == TTYTERMTYPE &&
+ Key.ScanCode == SCAN_NULL &&
+ UnicodeChar >= '0' &&
+ UnicodeChar <= '9') {
+ TerminalDevice->TtyEscapeStr[0] = UnicodeChar;
+ TerminalDevice->TtyEscapeIndex = 1;
+ TerminalDevice->InputState |= INPUT_STATE_LEFTOPENBRACKET_2;
+ continue;
+ }
+
if (Key.ScanCode != SCAN_NULL) {
Key.UnicodeChar = 0;
EfiKeyFiFoInsertOneKey (TerminalDevice, &Key);
@@ -1527,6 +1559,65 @@ UnicodeToEfiKey ( break;
+ case INPUT_STATE_ESC | INPUT_STATE_LEFTOPENBRACKET | INPUT_STATE_LEFTOPENBRACKET_2:
+ /*
+ * Here we handle the VT220 escape codes that we accept. This
+ * state is only used by the TTY terminal type.
+ */
+ Key.ScanCode = SCAN_NULL;
+ if (TerminalDevice->TerminalType == TTYTERMTYPE) {
+
+ if (UnicodeChar == '~' && TerminalDevice->TtyEscapeIndex <= 2) {
+ UINTN EscCode;
+ TerminalDevice->TtyEscapeStr[TerminalDevice->TtyEscapeIndex] = 0; /* Terminate string */
+ EscCode = StrDecimalToUintn(TerminalDevice->TtyEscapeStr);
+ switch (EscCode) {
+ case 3:
+ Key.ScanCode = SCAN_DELETE;
+ break;
+ case 11:
+ case 12:
+ case 13:
+ case 14:
+ case 15:
+ Key.ScanCode = SCAN_F1 + EscCode - 11;
+ break;
+ case 17:
+ case 18:
+ case 19:
+ case 20:
+ case 21:
+ Key.ScanCode = SCAN_F6 + EscCode - 17;
+ break;
+ case 23:
+ case 24:
+ Key.ScanCode = SCAN_F11 + EscCode - 23;
+ break;
+ default:
+ break;
+ }
+ } else if (TerminalDevice->TtyEscapeIndex == 1){
+ /* 2 character escape code */
+ TerminalDevice->TtyEscapeStr[TerminalDevice->TtyEscapeIndex++] = UnicodeChar;
+ continue;
+ }
+ else {
+ DEBUG ((EFI_D_ERROR, "Unexpected state in escape2\n"));
+ }
+ }
+ TerminalDevice->ResetState = RESET_STATE_DEFAULT;
+
+ if (Key.ScanCode != SCAN_NULL) {
+ Key.UnicodeChar = 0;
+ EfiKeyFiFoInsertOneKey (TerminalDevice, &Key);
+ TerminalDevice->InputState = INPUT_STATE_DEFAULT;
+ UnicodeToEfiKeyFlushState (TerminalDevice);
+ continue;
+ }
+
+ UnicodeToEfiKeyFlushState (TerminalDevice);
+ break;
+
default:
//
// Invalid state. This should never happen.
|