Aric Stewart : hid: Implement HidP_GetUsageValue.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: ecc619650829db0ea6dd15ad59773598495efa48
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=ecc619650829db0ea6dd15ad59773598495efa48

Author: Aric Stewart <aric at codeweavers.com>
Date:   Tue Jun 30 07:40:04 2015 -0500

hid: Implement HidP_GetUsageValue.

---

 dlls/hid/hid.spec   |  2 +-
 dlls/hid/hidp.c     | 65 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 include/ddk/hidpi.h |  1 +
 3 files changed, 67 insertions(+), 1 deletion(-)

diff --git a/dlls/hid/hid.spec b/dlls/hid/hid.spec
index 5b63267..b8b4e7f 100644
--- a/dlls/hid/hid.spec
+++ b/dlls/hid/hid.spec
@@ -26,7 +26,7 @@
 @ stub HidP_GetScaledUsageValue
 @ stub HidP_GetSpecificButtonCaps
 @ stub HidP_GetSpecificValueCaps
-@ stub HidP_GetUsageValue
+@ stdcall HidP_GetUsageValue(long long long long ptr ptr ptr long)
 @ stub HidP_GetUsageValueArray
 @ stdcall HidP_GetUsages(long long long ptr ptr ptr ptr long)
 @ stub HidP_GetUsagesEx
diff --git a/dlls/hid/hidp.c b/dlls/hid/hidp.c
index 0cdad0c..07c82cf 100644
--- a/dlls/hid/hidp.c
+++ b/dlls/hid/hidp.c
@@ -151,6 +151,71 @@ NTSTATUS WINAPI HidP_GetCaps(PHIDP_PREPARSED_DATA PreparsedData,
 }
 
 
+NTSTATUS WINAPI HidP_GetUsageValue(HIDP_REPORT_TYPE ReportType, USAGE UsagePage, USHORT LinkCollection,
+                                   USAGE Usage, PULONG UsageValue, PHIDP_PREPARSED_DATA PreparsedData,
+                                   PCHAR Report, ULONG ReportLength)
+{
+    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);
+
+    if (data->magic != HID_MAGIC)
+        return HIDP_STATUS_INVALID_PREPARSED_DATA;
+
+    switch(ReportType)
+    {
+        case HidP_Input:
+            v_count = data->caps.NumberInputValueCaps;
+            r_count = data->dwInputReportCount;
+            report = HID_INPUT_REPORTS(data);
+            break;
+        case HidP_Output:
+            v_count = data->caps.NumberOutputValueCaps;
+            r_count = data->dwOutputReportCount;
+            report = HID_OUTPUT_REPORTS(data);
+            break;
+        case HidP_Feature:
+            v_count = data->caps.NumberFeatureValueCaps;
+            r_count = data->dwFeatureReportCount;
+            report = HID_FEATURE_REPORTS(data);
+            break;
+        default:
+            return HIDP_STATUS_INVALID_REPORT_TYPE;
+    }
+
+    if (!r_count || !v_count || !report)
+        return HIDP_STATUS_USAGE_NOT_FOUND;
+
+    for (i = 0; i < r_count; i++)
+    {
+        if (!report->reportID || report->reportID == Report[0])
+            break;
+        report = HID_NEXT_REPORT(data, report);
+    }
+
+    if (i == r_count)
+        return HIDP_STATUS_REPORT_DOES_NOT_EXIST;
+
+    for (i = 0; i < report->elementCount; i++)
+    {
+        if (report->Elements[i].ElementType == ValueElement &&
+            report->Elements[i].caps.value.UsagePage == UsagePage &&
+            report->Elements[i].caps.value.u.NotRange.Usage == Usage)
+        {
+            return get_report_data((BYTE*)Report, ReportLength,
+                report->Elements[i].valueStartBit,
+                report->Elements[i].bitCount, UsageValue);
+        }
+    }
+
+    return HIDP_STATUS_USAGE_NOT_FOUND;
+}
+
+
 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 fddfa02..45361d2 100644
--- a/include/ddk/hidpi.h
+++ b/include/ddk/hidpi.h
@@ -139,6 +139,7 @@ typedef struct _HIDP_CAPS
 NTSTATUS WINAPI HidP_GetButtonCaps(HIDP_REPORT_TYPE ReportType, PHIDP_BUTTON_CAPS ButtonCaps, PUSHORT  ButtonCapsLength, PHIDP_PREPARSED_DATA PreparsedData);
 NTSTATUS WINAPI HidP_GetCaps(PHIDP_PREPARSED_DATA PreparsedData, PHIDP_CAPS Capabilities);
 NTSTATUS WINAPI HidP_GetUsages(HIDP_REPORT_TYPE ReportType, USAGE UsagePage, USHORT LinkCollection, PUSAGE UsageList, PULONG UsageLength, PHIDP_PREPARSED_DATA PreparsedData, PCHAR Report, ULONG ReportLength);
+NTSTATUS WINAPI HidP_GetUsageValue(HIDP_REPORT_TYPE ReportType, USAGE UsagePage, USHORT LinkCollection, USAGE Usage, PULONG UsageValue, PHIDP_PREPARSED_DATA PreparsedData, PCHAR Report, ULONG ReportLength);
 NTSTATUS WINAPI HidP_GetValueCaps(HIDP_REPORT_TYPE ReportType, PHIDP_VALUE_CAPS ValueCaps, PUSHORT ValueCapsLength, PHIDP_PREPARSED_DATA PreparsedData);