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[I8042PRT] Enable keyboard clock explicitly (fixes Lenovo ACPI bug). CORE-14256 (#434)

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Nikita Krapivin 2018-03-22 02:07:30 +05:00 committed by Hermès BÉLUSCA - MAÏTO
parent 9febc82acf
commit 10645167b8
2 changed files with 6 additions and 0 deletions
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2
drivers/input/i8042prt/i8042prt.h
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@ -223,6 +223,8 @@ typedef struct _I8042_HOOK_WORKITEM
#define MOUSE_ENAB 0xA8
#define MOUSE_LINE_TEST 0xA9
#define CTRL_SELF_TEST 0xAA
#define KBD_CLK_DISABLE 0xAD
#define KBD_CLK_ENABLE 0xAE
#define CTRL_WRITE_MOUSE 0xD4
/*-----------------------------------------------------

4
drivers/input/i8042prt/pnp.c
View file

@ -274,6 +274,10 @@ i8042ConnectKeyboardInterrupt(
TRACE_(I8042PRT, "i8042ConnectKeyboardInterrupt()\n");
PortDeviceExtension = DeviceExtension->Common.PortDeviceExtension;
// Enable keyboard clock line
i8042Write(PortDeviceExtension, PortDeviceExtension->ControlPort, KBD_CLK_ENABLE);
DirqlMax = MAX(
PortDeviceExtension->KeyboardInterrupt.Dirql,
PortDeviceExtension->MouseInterrupt.Dirql);