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[I8042PRT]

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- Implement support for hot plugging PS/2 mice if one was present at boot (same requirement as Windows)
- Fixes bug 1395

svn path=/trunk/; revision=54415
This commit is contained in:
Cameron Gutman 2011-11-17 23:41:18 +00:00
parent 1f282745da
commit 84002dd3ba
1 changed files with 16 additions and 6 deletions
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22
reactos/drivers/input/i8042prt/mouse.c
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@ -361,13 +361,9 @@ i8042DpcRoutineMouseTimeout(
Irql = KeAcquireInterruptSpinLock(PortDeviceExtension->HighestDIRQLInterrupt);
WARN_(I8042PRT, "Mouse initialization timeout! (substate %x). Disabling mouse.\n",
WARN_(I8042PRT, "Mouse initialization timeout! (substate %x)\n",
DeviceExtension->MouseResetState);
i8042Flush(PortDeviceExtension);
i8042ChangeMode(PortDeviceExtension, CCB_MOUSE_INT_ENAB, CCB_MOUSE_DISAB);
i8042Flush(PortDeviceExtension);
PortDeviceExtension->Flags &= ~MOUSE_PRESENT;
KeReleaseInterruptSpinLock(PortDeviceExtension->HighestDIRQLInterrupt, Irql);
@ -633,8 +629,21 @@ i8042MouResetIsr(
if (i8042MouCallIsrHook(DeviceExtension, Status, Value, &ToReturn))
return ToReturn;
if (MouseResetting != DeviceExtension->MouseState)
if (MouseIdle == DeviceExtension->MouseState)
{
/* Magic packet value that indicates a reset */
if (0xAA == Value)
{
WARN_(I8042PRT, "Hot plugged mouse!\n");
DeviceExtension->MouseState = MouseResetting;
DeviceExtension->MouseResetState = ExpectingReset;
}
else
return FALSE;
}
else if (MouseResetting != DeviceExtension->MouseState)
return FALSE;
DeviceExtension->MouseTimeoutState = TimeoutStart;
PortDeviceExtension = DeviceExtension->Common.PortDeviceExtension;
@ -870,6 +879,7 @@ i8042MouResetIsr(
DeviceExtension->MouseResetState = ExpectingEnableACK;
return TRUE;
case ExpectingEnableACK:
PortDeviceExtension->Flags |= MOUSE_PRESENT;
DeviceExtension->MouseState = MouseIdle;
DeviceExtension->MouseTimeoutState = TimeoutCancel;
INFO_(I8042PRT, "Mouse type = %u\n", DeviceExtension->MouseType);