From: Aric Stewart <aric@codeweavers.com>
Subject: [11/11]hid: Implement HidP_GetScaledUsageValue
Message-Id: <55928E49.7060600@codeweavers.com>
Date: Tue, 30 Jun 2015 07:40:41 -0500

---
 dlls/hid/hid.spec   |  2 +-
 dlls/hid/hidp.c     | 52 ++++++++++++++++++++++++++++++++++++++++++++++------
 include/ddk/hidpi.h |  1 +
 3 files changed, 48 insertions(+), 7 deletions(-)

diff --git a/dlls/hid/hid.spec b/dlls/hid/hid.spec
index 8772a35..c7b056d 100644
--- a/dlls/hid/hid.spec
+++ b/dlls/hid/hid.spec
@@ -23,7 +23,7 @@
 @ stub HidP_GetData
 @ stub HidP_GetExtendedAttributes
 @ stub HidP_GetLinkCollectionNodes
-@ stub HidP_GetScaledUsageValue
+@ stdcall HidP_GetScaledUsageValue(long long long long ptr ptr ptr long)
 @ stub HidP_GetSpecificButtonCaps
 @ stub HidP_GetSpecificValueCaps
 @ stdcall HidP_GetUsageValue(long long long long ptr ptr ptr long)
diff --git a/dlls/hid/hidp.c b/dlls/hid/hidp.c
index eab1fbe..135f2b2 100644
--- a/dlls/hid/hidp.c
+++ b/dlls/hid/hidp.c
@@ -149,15 +149,14 @@ NTSTATUS WINAPI HidP_GetCaps(PHIDP_PREPARSED_DATA PreparsedData,
     return HIDP_STATUS_SUCCESS;
 }
 
-
-NTSTATUS WINAPI HidP_GetUsageValue(HIDP_REPORT_TYPE ReportType, USAGE UsagePage, USHORT LinkCollection, USAGE Usage, PULONG UsageValue, PHIDP_PREPARSED_DATA PreparsedData, PCHAR Report, ULONG ReportLength)
+static NTSTATUS find_value(HIDP_REPORT_TYPE ReportType, USAGE UsagePage, USHORT LinkCollection, USAGE Usage, PHIDP_PREPARSED_DATA PreparsedData, PCHAR Report, WINE_HID_ELEMENT **element)
 {
     PWINE_HIDP_PREPARSED_DATA data = (PWINE_HIDP_PREPARSED_DATA)PreparsedData;
     WINE_HID_REPORT *report = NULL;
     USHORT v_count = 0, r_count = 0;
     int i;
 
-    TRACE("(%i, %x, %i, %i, %p, %p, %p, %i)\n", ReportType, UsagePage, LinkCollection, Usage, UsageValue, PreparsedData, Report, ReportLength);
+    TRACE("(%i, %x, %i, %i, %p, %p)\n", ReportType, UsagePage, LinkCollection, Usage, PreparsedData, Report);
 
     if (data->magic != HID_MAGIC)
         return HIDP_STATUS_INVALID_PREPARSED_DATA;
@@ -202,15 +201,56 @@ NTSTATUS WINAPI HidP_GetUsageValue(HIDP_REPORT_TYPE ReportType, USAGE UsagePage,
             report->Elements[i].caps.value.UsagePage == UsagePage &&
             report->Elements[i].caps.value.u.NotRange.Usage == Usage)
         {
-            return GetReportData((BYTE*)Report, ReportLength,
-                report->Elements[i].valueStartBit,
-                report->Elements[i].bitCount, UsageValue);
+            *element = &report->Elements[i];
+            return HIDP_STATUS_SUCCESS;
         }
     }
 
     return HIDP_STATUS_USAGE_NOT_FOUND;
 }
 
+NTSTATUS WINAPI HidP_GetScaledUsageValue(HIDP_REPORT_TYPE ReportType, USAGE UsagePage, USHORT LinkCollection, USAGE Usage, PLONG UsageValue, PHIDP_PREPARSED_DATA PreparsedData, PCHAR Report, ULONG ReportLength)
+{
+    NTSTATUS rc;
+    WINE_HID_ELEMENT *element;
+    TRACE("(%i, %x, %i, %i, %p, %p, %p, %i)\n", ReportType, UsagePage, LinkCollection, Usage, UsageValue, PreparsedData, Report, ReportLength);
+
+    rc = find_value(ReportType, UsagePage, LinkCollection, Usage, PreparsedData, Report, &element);
+
+    if (rc == HIDP_STATUS_SUCCESS)
+    {
+        ULONG rawValue;
+        rc = GetReportData((BYTE*)Report, ReportLength,
+            element->valueStartBit, element->bitCount, &rawValue);
+        if (rc != HIDP_STATUS_SUCCESS)
+            return rc;
+        if (element->caps.value.BitSize == 16)
+            rawValue = (short)rawValue;
+        *UsageValue = rawValue;
+    }
+
+    return rc;
+}
+
+
+NTSTATUS WINAPI HidP_GetUsageValue(HIDP_REPORT_TYPE ReportType, USAGE UsagePage, USHORT LinkCollection, USAGE Usage, PULONG UsageValue, PHIDP_PREPARSED_DATA PreparsedData, PCHAR Report, ULONG ReportLength)
+{
+    WINE_HID_ELEMENT *element;
+    NTSTATUS rc;
+
+    TRACE("(%i, %x, %i, %i, %p, %p, %p, %i)\n", ReportType, UsagePage, LinkCollection, Usage, UsageValue, PreparsedData, Report, ReportLength);
+
+    rc = find_value(ReportType, UsagePage, LinkCollection, Usage, PreparsedData, Report, &element);
+
+    if (rc == HIDP_STATUS_SUCCESS)
+    {
+        return GetReportData((BYTE*)Report, ReportLength,
+            element->valueStartBit, element->bitCount, UsageValue);
+    }
+
+    return rc;
+}
+
 
 NTSTATUS WINAPI HidP_GetUsages(HIDP_REPORT_TYPE ReportType, USAGE UsagePage, USHORT LinkCollection, PUSAGE UsageList, PULONG UsageLength, PHIDP_PREPARSED_DATA PreparsedData, PCHAR Report, ULONG ReportLength)
 {
diff --git a/include/ddk/hidpi.h b/include/ddk/hidpi.h
index 40821de..527a966 100644
--- a/include/ddk/hidpi.h
+++ b/include/ddk/hidpi.h
@@ -143,6 +143,7 @@ NTSTATUS WINAPI HidP_GetUsageValue(HIDP_REPORT_TYPE ReportType, USAGE UsagePage,
 NTSTATUS WINAPI HidP_GetValueCaps(HIDP_REPORT_TYPE ReportType, PHIDP_VALUE_CAPS ValueCaps, PUSHORT ValueCapsLength, PHIDP_PREPARSED_DATA PreparsedData);
 NTSTATUS WINAPI HidP_InitializeReportForID(HIDP_REPORT_TYPE ReportType, UCHAR ReportID, PHIDP_PREPARSED_DATA PreparsedData, PCHAR Report, ULONG ReportLength);
 ULONG WINAPI HidP_MaxUsageListLength(HIDP_REPORT_TYPE ReportType, USAGE UsagePage, PHIDP_PREPARSED_DATA PreparsedData);
+NTSTATUS WINAPI HidP_GetScaledUsageValue(HIDP_REPORT_TYPE ReportType, USAGE UsagePage, USHORT LinkCollection, USAGE Usage, PLONG UsageValue, PHIDP_PREPARSED_DATA PreparsedData, PCHAR Report, ULONG ReportLength);
 
 #ifndef FACILITY_HID_ERROR_CODE
 #define FACILITY_HID_ERROR_CODE 0x11