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* Reset keyboard state when an emergency key has been processed - it's likely

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that we lost a few keystrokes, and would make keys (like SysReq) stick.
  Thanks to Rene for the note!


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@31688 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Axel Dörfler 2009-07-22 08:02:51 +00:00
parent b7419f8d91
commit 1ad5198c09
3 changed files with 16 additions and 4 deletions
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5
src/add-ons/kernel/bus_managers/ps2/ps2_keyboard.c
View File

@ -152,8 +152,11 @@ keyboard_handle_int(ps2_dev *dev)
else
emergencyKeyStatus &= EMERGENCY_SYS_REQ;
} else if (emergencyKeyStatus > EMERGENCY_SYS_REQ
&& debug_emergency_key_pressed(kUnshiftedKeymap[scancode]))
&& debug_emergency_key_pressed(kUnshiftedKeymap[scancode])) {
// we probably have lost some keys, so reset our key states
emergencyKeyStatus = 0;
return B_HANDLED_INTERRUPT;
}
keyInfo.timestamp = dev->history[0].time;
keyInfo.scancode = scancode;

5
src/add-ons/kernel/drivers/input/usb_hid/KeyboardDevice.cpp
View File

@ -465,8 +465,11 @@ KeyboardDevice::_InterpretBuffer()
char letter = current[i] - 4 + 'a';
if (debug_emergency_key_pressed(letter))
if (debug_emergency_key_pressed(letter)) {
// we probably have lost some keys, so reset our key state
sysReqPressed = false;
continue;
}
} else if (key == 0) {
// unmapped key
key = 0x200000 + current[i];

10
src/system/kernel/arch/x86/arch_debug_console.c
View File

@ -147,8 +147,14 @@ debug_keyboard_interrupt(void *data)
break;
default:
if (altPressed && sysReqPressed)
debug_emergency_key_pressed(kUnshiftedKeymap[key]);
if (altPressed && sysReqPressed) {
if (debug_emergency_key_pressed(kUnshiftedKeymap[key])) {
// we probably have lost some keys, so reset our key states
controlPressed = false;
sysReqPressed = false;
altPressed = false;
}
}
break;
}