diff options
Diffstat (limited to 'MdeModulePkg/Bus/Usb/UsbMouseAbsolutePointerDxe/MouseHid.c')
| -rw-r--r-- | MdeModulePkg/Bus/Usb/UsbMouseAbsolutePointerDxe/MouseHid.c | 192 |
1 files changed, 96 insertions, 96 deletions
diff --git a/MdeModulePkg/Bus/Usb/UsbMouseAbsolutePointerDxe/MouseHid.c b/MdeModulePkg/Bus/Usb/UsbMouseAbsolutePointerDxe/MouseHid.c index 10e18e58ab..96e3e5c1f7 100644 --- a/MdeModulePkg/Bus/Usb/UsbMouseAbsolutePointerDxe/MouseHid.c +++ b/MdeModulePkg/Bus/Usb/UsbMouseAbsolutePointerDxe/MouseHid.c @@ -8,7 +8,6 @@ SPDX-License-Identifier: BSD-2-Clause-Patent #include "UsbMouseAbsolutePointer.h"
-
/**
Get next HID item from report descriptor.
@@ -31,12 +30,12 @@ SPDX-License-Identifier: BSD-2-Clause-Patent **/
UINT8 *
GetNextHidItem (
- IN UINT8 *StartPos,
- IN UINT8 *EndPos,
- OUT HID_ITEM *HidItem
+ IN UINT8 *StartPos,
+ IN UINT8 *EndPos,
+ OUT HID_ITEM *HidItem
)
{
- UINT8 Temp;
+ UINT8 Temp;
if (EndPos <= StartPos) {
return NULL;
@@ -66,7 +65,7 @@ GetNextHidItem ( if ((EndPos - StartPos) >= HidItem->Size) {
HidItem->Data.LongData = StartPos;
- StartPos += HidItem->Size;
+ StartPos += HidItem->Size;
return StartPos;
}
}
@@ -75,48 +74,47 @@ GetNextHidItem ( HidItem->Size = BitFieldRead8 (Temp, 0, 1);
switch (HidItem->Size) {
- case 0:
- //
- // No data
- //
- return StartPos;
-
- case 1:
- //
- // 1-byte data
- //
- if ((EndPos - StartPos) >= 1) {
- HidItem->Data.Uint8 = *StartPos++;
+ case 0:
+ //
+ // No data
+ //
return StartPos;
- }
- case 2:
- //
- // 2-byte data
- //
- if ((EndPos - StartPos) >= 2) {
- CopyMem (&HidItem->Data.Uint16, StartPos, sizeof (UINT16));
- StartPos += 2;
- return StartPos;
- }
+ case 1:
+ //
+ // 1-byte data
+ //
+ if ((EndPos - StartPos) >= 1) {
+ HidItem->Data.Uint8 = *StartPos++;
+ return StartPos;
+ }
- case 3:
- //
- // 4-byte data, adjust size
- //
- HidItem->Size = 4;
- if ((EndPos - StartPos) >= 4) {
- CopyMem (&HidItem->Data.Uint32, StartPos, sizeof (UINT32));
- StartPos += 4;
- return StartPos;
- }
+ case 2:
+ //
+ // 2-byte data
+ //
+ if ((EndPos - StartPos) >= 2) {
+ CopyMem (&HidItem->Data.Uint16, StartPos, sizeof (UINT16));
+ StartPos += 2;
+ return StartPos;
+ }
+
+ case 3:
+ //
+ // 4-byte data, adjust size
+ //
+ HidItem->Size = 4;
+ if ((EndPos - StartPos) >= 4) {
+ CopyMem (&HidItem->Data.Uint32, StartPos, sizeof (UINT32));
+ StartPos += 4;
+ return StartPos;
+ }
}
}
return NULL;
}
-
/**
Get data from HID item.
@@ -131,20 +129,21 @@ GetNextHidItem ( **/
UINT32
GetItemData (
- IN HID_ITEM *HidItem
+ IN HID_ITEM *HidItem
)
{
//
// Get data from HID item.
//
switch (HidItem->Size) {
- case 1:
- return HidItem->Data.Uint8;
- case 2:
- return HidItem->Data.Uint16;
- case 4:
- return HidItem->Data.Uint32;
+ case 1:
+ return HidItem->Data.Uint8;
+ case 2:
+ return HidItem->Data.Uint16;
+ case 4:
+ return HidItem->Data.Uint32;
}
+
return 0;
}
@@ -161,67 +160,68 @@ GetItemData ( **/
VOID
ParseHidItem (
- IN USB_MOUSE_ABSOLUTE_POINTER_DEV *UsbMouse,
- IN HID_ITEM *HidItem
+ IN USB_MOUSE_ABSOLUTE_POINTER_DEV *UsbMouse,
+ IN HID_ITEM *HidItem
)
{
UINT8 Data;
switch (HidItem->Type) {
+ case HID_ITEM_TYPE_MAIN:
+ //
+ // we don't care any main items, just skip
+ //
+ return;
- case HID_ITEM_TYPE_MAIN:
- //
- // we don't care any main items, just skip
- //
- return ;
+ case HID_ITEM_TYPE_GLOBAL:
+ //
+ // For global items, we only care Usage Page tag for Button Page here
+ //
+ if (HidItem->Tag == HID_GLOBAL_ITEM_TAG_USAGE_PAGE) {
+ Data = (UINT8)GetItemData (HidItem);
+ if (Data == 0x09) {
+ //
+ // Button Page
+ //
+ UsbMouse->PrivateData.ButtonDetected = TRUE;
+ }
+ }
- case HID_ITEM_TYPE_GLOBAL:
- //
- // For global items, we only care Usage Page tag for Button Page here
- //
- if (HidItem->Tag == HID_GLOBAL_ITEM_TAG_USAGE_PAGE) {
- Data = (UINT8) GetItemData (HidItem);
- if (Data == 0x09) {
+ return;
+
+ case HID_ITEM_TYPE_LOCAL:
+ if (HidItem->Size == 0) {
//
- // Button Page
+ // No expected data for local item
//
- UsbMouse->PrivateData.ButtonDetected = TRUE;
+ return;
}
- }
- return;
- case HID_ITEM_TYPE_LOCAL:
- if (HidItem->Size == 0) {
- //
- // No expected data for local item
- //
- return ;
- }
+ Data = (UINT8)GetItemData (HidItem);
- Data = (UINT8) GetItemData (HidItem);
+ switch (HidItem->Tag) {
+ case HID_LOCAL_ITEM_TAG_USAGE_MINIMUM:
+ if (UsbMouse->PrivateData.ButtonDetected) {
+ UsbMouse->PrivateData.ButtonMinIndex = Data;
+ }
- switch (HidItem->Tag) {
- case HID_LOCAL_ITEM_TAG_USAGE_MINIMUM:
- if (UsbMouse->PrivateData.ButtonDetected) {
- UsbMouse->PrivateData.ButtonMinIndex = Data;
- }
- return ;
+ return;
- case HID_LOCAL_ITEM_TAG_USAGE_MAXIMUM:
- {
- if (UsbMouse->PrivateData.ButtonDetected) {
- UsbMouse->PrivateData.ButtonMaxIndex = Data;
- }
- return ;
- }
+ case HID_LOCAL_ITEM_TAG_USAGE_MAXIMUM:
+ {
+ if (UsbMouse->PrivateData.ButtonDetected) {
+ UsbMouse->PrivateData.ButtonMaxIndex = Data;
+ }
+
+ return;
+ }
- default:
- return ;
+ default:
+ return;
}
}
}
-
/**
Parse Mouse Report Descriptor.
@@ -240,9 +240,9 @@ ParseHidItem ( **/
EFI_STATUS
ParseMouseReportDescriptor (
- OUT USB_MOUSE_ABSOLUTE_POINTER_DEV *UsbMouseAbsolutePointer,
- IN UINT8 *ReportDescriptor,
- IN UINTN ReportSize
+ OUT USB_MOUSE_ABSOLUTE_POINTER_DEV *UsbMouseAbsolutePointer,
+ IN UINT8 *ReportDescriptor,
+ IN UINTN ReportSize
)
{
UINT8 *DescriptorEnd;
@@ -265,11 +265,11 @@ ParseMouseReportDescriptor ( Ptr = GetNextHidItem (Ptr, DescriptorEnd, &HidItem);
}
- UsbMouseAbsolutePointer->NumberOfButtons = (UINT8) (UsbMouseAbsolutePointer->PrivateData.ButtonMaxIndex - UsbMouseAbsolutePointer->PrivateData.ButtonMinIndex + 1);
- UsbMouseAbsolutePointer->XLogicMax = 1023;
- UsbMouseAbsolutePointer->YLogicMax = 1023;
- UsbMouseAbsolutePointer->XLogicMin = -1023;
- UsbMouseAbsolutePointer->YLogicMin = -1023;
+ UsbMouseAbsolutePointer->NumberOfButtons = (UINT8)(UsbMouseAbsolutePointer->PrivateData.ButtonMaxIndex - UsbMouseAbsolutePointer->PrivateData.ButtonMinIndex + 1);
+ UsbMouseAbsolutePointer->XLogicMax = 1023;
+ UsbMouseAbsolutePointer->YLogicMax = 1023;
+ UsbMouseAbsolutePointer->XLogicMin = -1023;
+ UsbMouseAbsolutePointer->YLogicMin = -1023;
return EFI_SUCCESS;
}
|