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hid: Implement HidP_GetUsages.

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This commit is contained in:
Aric Stewart 2015-06-30 07:40:00 -05:00 committed by Alexandre Julliard
parent 0bb216ff35
commit 8bb231c4ae
3 changed files with 128 additions and 1 deletions
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2
dlls/hid/hid.spec
View file

@ -28,7 +28,7 @@
@ stub HidP_GetSpecificValueCaps
@ stub HidP_GetUsageValue
@ stub HidP_GetUsageValueArray
@ stub HidP_GetUsages
@ stdcall HidP_GetUsages(long long long ptr ptr ptr ptr long)
@ stub HidP_GetUsagesEx
@ stdcall HidP_GetValueCaps(long ptr ptr ptr)
@ stub HidP_InitializeReportForID

126
dlls/hid/hidp.c
View file

@ -37,6 +37,46 @@
WINE_DEFAULT_DEBUG_CHANNEL(hidp);
static NTSTATUS get_report_data(BYTE *report, INT reportLength, INT startBit, INT valueSize, PULONG value)
{
if ((startBit + valueSize) / 8 > reportLength)
return HIDP_STATUS_INVALID_REPORT_LENGTH;
if (valueSize == 1)
{
ULONG byte_index = startBit / 8;
ULONG bit_index = startBit - (byte_index * 8);
INT mask = (1 << bit_index);
*value = (report[byte_index] & mask);
}
else
{
ULONG byte_index = (startBit + valueSize - 1) / 8;
ULONG data = 0;
ULONG remainingBits = valueSize;
while (remainingBits)
{
data <<= 8;
if (remainingBits >= 8)
{
data |= report[byte_index];
byte_index --;
remainingBits -= 8;
}
else if (remainingBits > 0)
{
BYTE mask = ~(0xff << (8-remainingBits));
data |= report[byte_index] & mask;
remainingBits = 0;
}
}
*value = data;
}
return HIDP_STATUS_SUCCESS;
}
NTSTATUS WINAPI HidP_GetButtonCaps(HIDP_REPORT_TYPE ReportType, PHIDP_BUTTON_CAPS ButtonCaps,
PUSHORT ButtonCapsLength, PHIDP_PREPARSED_DATA PreparsedData)
{
@ -111,6 +151,92 @@ NTSTATUS WINAPI HidP_GetCaps(PHIDP_PREPARSED_DATA PreparsedData,
}
NTSTATUS WINAPI HidP_GetUsages(HIDP_REPORT_TYPE ReportType, USAGE UsagePage, USHORT LinkCollection,
PUSAGE UsageList, PULONG UsageLength, PHIDP_PREPARSED_DATA PreparsedData,
PCHAR Report, ULONG ReportLength)
{
PWINE_HIDP_PREPARSED_DATA data = (PWINE_HIDP_PREPARSED_DATA)PreparsedData;
WINE_HID_REPORT *report = NULL;
BOOL found = FALSE;
USHORT b_count = 0, r_count = 0;
int i,uCount;
TRACE("(%i, %x, %i, %p, %p, %p, %p, %i)\n", ReportType, UsagePage, LinkCollection, UsageList,
UsageLength, PreparsedData, Report, ReportLength);
if (data->magic != HID_MAGIC)
return HIDP_STATUS_INVALID_PREPARSED_DATA;
switch(ReportType)
{
case HidP_Input:
b_count = data->caps.NumberInputButtonCaps;
r_count = data->dwInputReportCount;
report = HID_INPUT_REPORTS(data);
break;
case HidP_Output:
b_count = data->caps.NumberOutputButtonCaps;
r_count = data->dwOutputReportCount;
report = HID_OUTPUT_REPORTS(data);
break;
case HidP_Feature:
b_count = data->caps.NumberFeatureButtonCaps;
r_count = data->dwFeatureReportCount;
report = HID_FEATURE_REPORTS(data);
break;
default:
return HIDP_STATUS_INVALID_REPORT_TYPE;
}
if (!r_count || !b_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;
uCount = 0;
for (i = 0; i < report->elementCount && uCount < *UsageLength; i++)
{
if (report->Elements[i].ElementType == ButtonElement &&
report->Elements[i].caps.button.UsagePage == UsagePage)
{
int k;
WINE_HID_ELEMENT *element = &report->Elements[i];
for (k=0; k < element->bitCount; k++)
{
UINT v = 0;
NTSTATUS rc = get_report_data((BYTE*)Report, ReportLength,
element->valueStartBit + k, 1, &v);
if (rc != HIDP_STATUS_SUCCESS)
return rc;
found = TRUE;
if (v)
{
if (uCount == *UsageLength)
return HIDP_STATUS_BUFFER_TOO_SMALL;
UsageList[uCount] = element->caps.button.u.Range.UsageMin + k;
uCount++;
}
}
}
}
if (!found)
return HIDP_STATUS_USAGE_NOT_FOUND;
*UsageLength = uCount;
return HIDP_STATUS_SUCCESS;
}
NTSTATUS WINAPI HidP_GetValueCaps(HIDP_REPORT_TYPE ReportType, PHIDP_VALUE_CAPS ValueCaps,
PUSHORT ValueCapsLength, PHIDP_PREPARSED_DATA PreparsedData)
{

1
include/ddk/hidpi.h
View file

@ -138,6 +138,7 @@ 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_GetValueCaps(HIDP_REPORT_TYPE ReportType, PHIDP_VALUE_CAPS ValueCaps, PUSHORT ValueCapsLength, PHIDP_PREPARSED_DATA PreparsedData);