Current implementation executes key notify function in TimerHandler
at TPL_NOTIFY. The code change is to make key notify function
executed at TPL_CALLBACK to reduce the time occupied at TPL_NOTIFY.
The code will signal KeyNotify process event if the key pressed
matches any key registered and insert the KeyData to the EFI Key
queue for notify, then the KeyNotify process handler will invoke
key notify functions at TPL_CALLBACK.
Cc: Ruiyu Ni <ruiyu...@intel.com>
Cc: Michael Kinney <michael.d.kin...@intel.com>
Cc: Feng Tian <feng.t...@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Star Zeng <star.z...@intel.com>
---
.../Bus/Isa/Ps2KeyboardDxe/Ps2KbdCtrller.c | 7 +++-
MdeModulePkg/Bus/Isa/Ps2KeyboardDxe/Ps2KbdTextIn.c | 45 ++++++++++++++++++++++
MdeModulePkg/Bus/Isa/Ps2KeyboardDxe/Ps2Keyboard.c | 20 ++++++++++
MdeModulePkg/Bus/Isa/Ps2KeyboardDxe/Ps2Keyboard.h | 15 ++++++++
4 files changed, 85 insertions(+), 2 deletions(-)
diff --git a/MdeModulePkg/Bus/Isa/Ps2KeyboardDxe/Ps2KbdCtrller.c
b/MdeModulePkg/Bus/Isa/Ps2KeyboardDxe/Ps2KbdCtrller.c
index eeb7de34abc8..df36c9063b7a 100644
--- a/MdeModulePkg/Bus/Isa/Ps2KeyboardDxe/Ps2KbdCtrller.c
+++ b/MdeModulePkg/Bus/Isa/Ps2KeyboardDxe/Ps2KbdCtrller.c
@@ -1420,7 +1420,7 @@ KeyGetchar (
}
//
- // Invoke notification functions if exist
+ // Signal KeyNotify process event if this key pressed matches any key
registered.
//
for (Link = GetFirstNode (&ConsoleIn->NotifyList); !IsNull
(&ConsoleIn->NotifyList, Link); Link = GetNextNode (&ConsoleIn->NotifyList,
Link)) {
CurrentNotify = CR (
@@ -1430,7 +1430,8 @@ KeyGetchar (
KEYBOARD_CONSOLE_IN_EX_NOTIFY_SIGNATURE
);
if (IsKeyRegistered (&CurrentNotify->KeyData, &KeyData)) {
- CurrentNotify->KeyNotificationFn (&KeyData);
+ PushEfikeyBufTail (&ConsoleIn->EfiKeyQueueForNotify, &KeyData);
+ gBS->SignalEvent (ConsoleIn->KeyNotifyProcessEvent);
}
}
@@ -1629,6 +1630,8 @@ InitKeyboard (
ConsoleIn->ScancodeQueue.Tail = 0;
ConsoleIn->EfiKeyQueue.Head = 0;
ConsoleIn->EfiKeyQueue.Tail = 0;
+ ConsoleIn->EfiKeyQueueForNotify.Head = 0;
+ ConsoleIn->EfiKeyQueueForNotify.Tail = 0;
//
// Reset the status indicators
diff --git a/MdeModulePkg/Bus/Isa/Ps2KeyboardDxe/Ps2KbdTextIn.c
b/MdeModulePkg/Bus/Isa/Ps2KeyboardDxe/Ps2KbdTextIn.c
index f6ccd9598fb0..aee78a391cc1 100644
--- a/MdeModulePkg/Bus/Isa/Ps2KeyboardDxe/Ps2KbdTextIn.c
+++ b/MdeModulePkg/Bus/Isa/Ps2KeyboardDxe/Ps2KbdTextIn.c
@@ -681,3 +681,48 @@ Exit:
return Status;
}
+/**
+ Process key notify.
+
+ @param Event Indicates the event that invoke this function.
+ @param Context Indicates the calling context.
+**/
+VOID
+EFIAPI
+KeyNotifyProcessHandler (
+ IN EFI_EVENT Event,
+ IN VOID *Context
+ )
+{
+ KEYBOARD_CONSOLE_IN_DEV *ConsoleIn;
+ EFI_KEY_DATA KeyData;
+ LIST_ENTRY *Link;
+ LIST_ENTRY *NotifyList;
+ KEYBOARD_CONSOLE_IN_EX_NOTIFY *CurrentNotify;
+ EFI_TPL OldTpl;
+
+ ConsoleIn = (KEYBOARD_CONSOLE_IN_DEV *) Context;
+
+ //
+ // Invoke notification functions.
+ //
+ NotifyList = &ConsoleIn->NotifyList;
+ while (!IsEfikeyBufEmpty (&ConsoleIn->EfiKeyQueueForNotify)) {
+ //
+ // Enter critical section
+ //
+ OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
+ PopEfikeyBufHead (&ConsoleIn->EfiKeyQueueForNotify, &KeyData);
+ //
+ // Leave critical section
+ //
+ gBS->RestoreTPL (OldTpl);
+ for (Link = GetFirstNode (NotifyList); !IsNull (NotifyList, Link); Link =
GetNextNode (NotifyList, Link)) {
+ CurrentNotify = CR (Link, KEYBOARD_CONSOLE_IN_EX_NOTIFY, NotifyEntry,
KEYBOARD_CONSOLE_IN_EX_NOTIFY_SIGNATURE);
+ if (IsKeyRegistered (&CurrentNotify->KeyData, &KeyData)) {
+ CurrentNotify->KeyNotificationFn (&KeyData);
+ }
+ }
+ }
+}
+
diff --git a/MdeModulePkg/Bus/Isa/Ps2KeyboardDxe/Ps2Keyboard.c
b/MdeModulePkg/Bus/Isa/Ps2KeyboardDxe/Ps2Keyboard.c
index 4df1b890e62f..6121d29fb791 100644
--- a/MdeModulePkg/Bus/Isa/Ps2KeyboardDxe/Ps2Keyboard.c
+++ b/MdeModulePkg/Bus/Isa/Ps2KeyboardDxe/Ps2Keyboard.c
@@ -351,6 +351,19 @@ KbdControllerDriverStart (
goto ErrorExit;
}
+ Status = gBS->CreateEvent (
+ EVT_NOTIFY_SIGNAL,
+ TPL_CALLBACK,
+ KeyNotifyProcessHandler,
+ ConsoleIn,
+ &ConsoleIn->KeyNotifyProcessEvent
+ );
+ if (EFI_ERROR (Status)) {
+ Status = EFI_OUT_OF_RESOURCES;
+ StatusCode = EFI_PERIPHERAL_KEYBOARD | EFI_P_EC_CONTROLLER_ERROR;
+ goto ErrorExit;
+ }
+
REPORT_STATUS_CODE_WITH_DEVICE_PATH (
EFI_PROGRESS_CODE,
EFI_PERIPHERAL_KEYBOARD | EFI_P_PC_PRESENCE_DETECT,
@@ -430,6 +443,9 @@ ErrorExit:
if ((ConsoleIn != NULL) && (ConsoleIn->ConInEx.WaitForKeyEx != NULL)) {
gBS->CloseEvent (ConsoleIn->ConInEx.WaitForKeyEx);
}
+ if ((ConsoleIn != NULL) && (ConsoleIn->KeyNotifyProcessEvent != NULL)) {
+ gBS->CloseEvent (ConsoleIn->KeyNotifyProcessEvent);
+ }
KbdFreeNotifyList (&ConsoleIn->NotifyList);
if ((ConsoleIn != NULL) && (ConsoleIn->ControllerNameTable != NULL)) {
FreeUnicodeStringTable (ConsoleIn->ControllerNameTable);
@@ -570,6 +586,10 @@ KbdControllerDriverStop (
gBS->CloseEvent (ConsoleIn->ConInEx.WaitForKeyEx);
ConsoleIn->ConInEx.WaitForKeyEx = NULL;
}
+ if (ConsoleIn->KeyNotifyProcessEvent != NULL) {
+ gBS->CloseEvent (ConsoleIn->KeyNotifyProcessEvent);
+ ConsoleIn->KeyNotifyProcessEvent = NULL;
+ }
KbdFreeNotifyList (&ConsoleIn->NotifyList);
FreeUnicodeStringTable (ConsoleIn->ControllerNameTable);
gBS->FreePool (ConsoleIn);
diff --git a/MdeModulePkg/Bus/Isa/Ps2KeyboardDxe/Ps2Keyboard.h
b/MdeModulePkg/Bus/Isa/Ps2KeyboardDxe/Ps2Keyboard.h
index d0aecfb08788..e41c1980fc6f 100644
--- a/MdeModulePkg/Bus/Isa/Ps2KeyboardDxe/Ps2Keyboard.h
+++ b/MdeModulePkg/Bus/Isa/Ps2KeyboardDxe/Ps2Keyboard.h
@@ -105,6 +105,7 @@ typedef struct {
//
SCAN_CODE_QUEUE ScancodeQueue;
EFI_KEY_QUEUE EfiKeyQueue;
+ EFI_KEY_QUEUE EfiKeyQueueForNotify;
//
// Error state
@@ -118,6 +119,7 @@ typedef struct {
// Notification Function List
//
LIST_ENTRY NotifyList;
+ EFI_EVENT KeyNotifyProcessEvent;
} KEYBOARD_CONSOLE_IN_DEV;
#define KEYBOARD_CONSOLE_IN_DEV_FROM_THIS(a) CR (a, KEYBOARD_CONSOLE_IN_DEV,
ConIn, KEYBOARD_CONSOLE_IN_DEV_SIGNATURE)
@@ -269,6 +271,19 @@ KeyGetchar (
);
/**
+ Process key notify.
+
+ @param Event Indicates the event that invoke this function.
+ @param Context Indicates the calling context.
+**/
+VOID
+EFIAPI
+KeyNotifyProcessHandler (
+ IN EFI_EVENT Event,
+ IN VOID *Context
+ );
+
+/**
Perform 8042 controller and keyboard Initialization.
If ExtendedVerification is TRUE, do additional test for
the keyboard interface
--
2.7.0.windows.1
_______________________________________________
edk2-devel mailing list
edk2-devel@lists.01.org
https://lists.01.org/mailman/listinfo/edk2-devel
