1146 lines
41 KiB
C
1146 lines
41 KiB
C
/*
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* HID descriptor parsing
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*
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* Copyright (C) 2015 Aric Stewart
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include "config.h"
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#include <stdarg.h>
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#include <stdlib.h>
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#include <stdio.h>
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#define NONAMELESSUNION
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#include "hid.h"
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#include "wine/debug.h"
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#include "wine/list.h"
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WINE_DEFAULT_DEBUG_CHANNEL(hid);
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#define USAGE_MAX 10
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enum {
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INPUT_DATA = 0x01,
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INPUT_ARRAY = 0x02,
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INPUT_ABS = 0x04,
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INPUT_WRAP = 0x08,
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INPUT_LINEAR = 0x10,
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INPUT_PREFSTATE = 0x20,
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INPUT_NULL = 0x40,
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INPUT_VOLATILE = 0x80,
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INPUT_BITFIELD = 0x100
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};
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enum {
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TAG_TYPE_MAIN = 0x0,
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TAG_TYPE_GLOBAL,
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TAG_TYPE_LOCAL,
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TAG_TYPE_RESERVED,
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};
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enum {
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TAG_MAIN_INPUT = 0x08,
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TAG_MAIN_OUTPUT = 0x09,
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TAG_MAIN_FEATURE = 0x0B,
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TAG_MAIN_COLLECTION = 0x0A,
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TAG_MAIN_END_COLLECTION = 0x0C
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};
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enum {
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TAG_GLOBAL_USAGE_PAGE = 0x0,
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TAG_GLOBAL_LOGICAL_MINIMUM,
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TAG_GLOBAL_LOGICAL_MAXIMUM,
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TAG_GLOBAL_PHYSICAL_MINIMUM,
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TAG_GLOBAL_PHYSICAL_MAXIMUM,
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TAG_GLOBAL_UNIT_EXPONENT,
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TAG_GLOBAL_UNIT,
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TAG_GLOBAL_REPORT_SIZE,
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TAG_GLOBAL_REPORT_ID,
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TAG_GLOBAL_REPORT_COUNT,
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TAG_GLOBAL_PUSH,
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TAG_GLOBAL_POP
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};
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enum {
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TAG_LOCAL_USAGE = 0x0,
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TAG_LOCAL_USAGE_MINIMUM,
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TAG_LOCAL_USAGE_MAXIMUM,
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TAG_LOCAL_DESIGNATOR_INDEX,
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TAG_LOCAL_DESIGNATOR_MINIMUM,
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TAG_LOCAL_DESIGNATOR_MAXIMUM,
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TAG_LOCAL_STRING_INDEX,
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TAG_LOCAL_STRING_MINIMUM,
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TAG_LOCAL_STRING_MAXIMUM,
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TAG_LOCAL_DELIMITER
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};
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static const char* const feature_string[] =
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{ "Input", "Output", "Feature" };
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struct caps {
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USAGE UsagePage;
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LONG LogicalMin;
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LONG LogicalMax;
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LONG PhysicalMin;
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LONG PhysicalMax;
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ULONG UnitsExp;
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ULONG Units;
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USHORT BitSize;
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UCHAR ReportID;
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USHORT ReportCount;
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BOOLEAN IsRange;
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BOOLEAN IsStringRange;
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BOOLEAN IsDesignatorRange;
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unsigned int usage_count;
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union {
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struct {
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USAGE UsageMin;
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USAGE UsageMax;
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USHORT StringMin;
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USHORT StringMax;
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USHORT DesignatorMin;
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USHORT DesignatorMax;
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} Range;
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struct {
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USAGE Usage[USAGE_MAX];
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USAGE Reserved1;
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USHORT StringIndex;
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USHORT Reserved2;
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USHORT DesignatorIndex;
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USHORT Reserved3;
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} NotRange;
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} DUMMYUNIONNAME;
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int Delim;
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};
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struct feature {
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struct list entry;
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struct list col_entry;
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struct caps caps;
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HIDP_REPORT_TYPE type;
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BOOLEAN isData;
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BOOLEAN isArray;
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BOOLEAN IsAbsolute;
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BOOLEAN Wrap;
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BOOLEAN Linear;
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BOOLEAN prefState;
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BOOLEAN HasNull;
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BOOLEAN Volatile;
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BOOLEAN BitField;
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unsigned int index;
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struct collection *collection;
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};
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static const char* const collection_string[] = {
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"Physical",
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"Application",
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"Logical",
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"Report",
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"Named Array",
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"Usage Switch",
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"Usage Modifier",
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};
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struct collection {
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struct list entry;
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struct caps caps;
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unsigned int index;
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unsigned int type;
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struct collection *parent;
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struct list features;
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struct list collections;
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};
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static const char* debugstr_usages(struct caps *caps)
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{
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if (!caps->IsRange)
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{
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char out[12 * USAGE_MAX];
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unsigned int i;
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if (caps->usage_count == 0)
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return "[ none ]";
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out[0] = 0;
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for (i = 0; i < caps->usage_count; i++)
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sprintf(out + strlen(out), "0x%x ", caps->u.NotRange.Usage[i]);
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return wine_dbg_sprintf("[ %s] ", out);
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}
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else
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return wine_dbg_sprintf("[0x%x - 0x%x]", caps->u.Range.UsageMin, caps->u.Range.UsageMax);
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}
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static const char* debugstr_stringindex(struct caps *caps)
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{
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if (!caps->IsStringRange)
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return wine_dbg_sprintf("%i", caps->u.NotRange.StringIndex);
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else
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return wine_dbg_sprintf("[%i - %i]", caps->u.Range.StringMin, caps->u.Range.StringMax);
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}
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static const char* debugstr_designatorindex(struct caps *caps)
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{
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if (!caps->IsDesignatorRange)
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return wine_dbg_sprintf("%i", caps->u.NotRange.DesignatorIndex);
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else
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return wine_dbg_sprintf("[%i - %i]", caps->u.Range.DesignatorMin, caps->u.Range.DesignatorMax);
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}
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static void debugstr_caps(const char* type, struct caps *caps)
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{
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if (!caps)
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return;
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TRACE("(%s Caps: UsagePage 0x%x; LogicalMin %i; LogicalMax %i; PhysicalMin %i; PhysicalMax %i; UnitsExp %i; Units %i; BitSize %i; ReportID %i; ReportCount %i; Usage %s; StringIndex %s; DesignatorIndex %s; Delim %i;)\n",
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type,
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caps->UsagePage,
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caps->LogicalMin,
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caps->LogicalMax,
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caps->PhysicalMin,
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caps->PhysicalMax,
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caps->UnitsExp,
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caps->Units,
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caps->BitSize,
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caps->ReportID,
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caps->ReportCount,
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debugstr_usages(caps),
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debugstr_stringindex(caps),
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debugstr_designatorindex(caps),
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caps->Delim);
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}
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static void debug_feature(struct feature *feature)
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{
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if (!feature)
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return;
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TRACE("[Feature type %s [%i]; %s; %s; %s; %s; %s; %s; %s; %s; %s]\n",
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feature_string[feature->type],
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feature->index,
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(feature->isData)?"Data":"Const",
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(feature->isArray)?"Array":"Var",
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(feature->IsAbsolute)?"Abs":"Rel",
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(feature->Wrap)?"Wrap":"NoWrap",
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(feature->Linear)?"Linear":"NonLinear",
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(feature->prefState)?"PrefStat":"NoPrefState",
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(feature->HasNull)?"HasNull":"NoNull",
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(feature->Volatile)?"Volatile":"NonVolatile",
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(feature->BitField)?"BitField":"Buffered");
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debugstr_caps("Feature", &feature->caps);
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}
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static void debug_collection(struct collection *collection)
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{
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struct feature *fentry;
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struct collection *centry;
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if (TRACE_ON(hid))
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{
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TRACE("START Collection %i <<< %s, parent: %p, %i features, %i collections\n", collection->index, collection_string[collection->type], collection->parent, list_count(&collection->features), list_count(&collection->collections));
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debugstr_caps("Collection", &collection->caps);
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LIST_FOR_EACH_ENTRY(fentry, &collection->features, struct feature, col_entry)
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debug_feature(fentry);
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LIST_FOR_EACH_ENTRY(centry, &collection->collections, struct collection, entry)
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debug_collection(centry);
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TRACE(">>> END Collection %i\n", collection->index);
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}
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}
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static void debug_print_button_cap(const CHAR * type, WINE_HID_ELEMENT *wine_element)
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{
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if (!wine_element->caps.button.IsRange)
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TRACE("%s Button: 0x%x/0x%04x: ReportId %i, startBit %i/1\n" , type,
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wine_element->caps.button.UsagePage,
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wine_element->caps.button.u.NotRange.Usage,
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wine_element->caps.value.ReportID,
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wine_element->valueStartBit);
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else
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TRACE("%s Button: 0x%x/[0x%04x-0x%04x]: ReportId %i, startBit %i/%i\n" ,type,
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wine_element->caps.button.UsagePage,
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wine_element->caps.button.u.Range.UsageMin,
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wine_element->caps.button.u.Range.UsageMax,
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wine_element->caps.value.ReportID,
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wine_element->valueStartBit,
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wine_element->bitCount);
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}
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static void debug_print_value_cap(const CHAR * type, WINE_HID_ELEMENT *wine_element)
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{
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TRACE("%s Value: 0x%x/0x%x: ReportId %i, IsAbsolute %i, HasNull %i, "
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"Bit Size %i, ReportCount %i, UnitsExp %i, Units %i, "
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"LogicalMin %i, Logical Max %i, PhysicalMin %i, "
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"PhysicalMax %i -- StartBit %i/%i\n", type,
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wine_element->caps.value.UsagePage,
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wine_element->caps.value.u.NotRange.Usage,
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wine_element->caps.value.ReportID,
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wine_element->caps.value.IsAbsolute,
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wine_element->caps.value.HasNull,
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wine_element->caps.value.BitSize,
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wine_element->caps.value.ReportCount,
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wine_element->caps.value.UnitsExp,
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wine_element->caps.value.Units,
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wine_element->caps.value.LogicalMin,
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wine_element->caps.value.LogicalMax,
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wine_element->caps.value.PhysicalMin,
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wine_element->caps.value.PhysicalMax,
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wine_element->valueStartBit,
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wine_element->bitCount);
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}
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static void debug_print_element(const CHAR* type, WINE_HID_ELEMENT *wine_element)
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{
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if (wine_element->ElementType == ButtonElement)
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debug_print_button_cap(type, wine_element);
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else if (wine_element->ElementType == ValueElement)
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debug_print_value_cap(type, wine_element);
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else
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TRACE("%s: UNKNOWN\n", type);
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}
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static void debug_print_report(const char* type, WINE_HID_REPORT *report)
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{
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unsigned int i;
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TRACE("START Report %i <<< %s report : dwSize: %i elementCount: %i\n",
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report->reportID,
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type,
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report->dwSize,
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report->elementCount);
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for (i = 0; i < report->elementCount; i++)
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debug_print_element(type, &report->Elements[i]);
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TRACE(">>> END Report %i\n",report->reportID);
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}
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static void debug_print_preparsed(WINE_HIDP_PREPARSED_DATA *data)
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{
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unsigned int i;
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WINE_HID_REPORT *r;
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if (TRACE_ON(hid))
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{
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TRACE("START PREPARSED Data <<< dwSize: %i Usage: %i, UsagePage: %i, InputReportByteLength: %i, tOutputReportByteLength: %i, FeatureReportByteLength: %i, NumberLinkCollectionNodes: %i, NumberInputButtonCaps: %i, NumberInputValueCaps: %i,NumberInputDataIndices: %i, NumberOutputButtonCaps: %i, NumberOutputValueCaps: %i, NumberOutputDataIndices: %i, NumberFeatureButtonCaps: %i, NumberFeatureValueCaps: %i, NumberFeatureDataIndices: %i, dwInputReportCount: %i, dwOutputReportCount: %i, dwFeatureReportCount: %i, dwOutputReportOffset: %i, dwFeatureReportOffset: %i\n",
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data->dwSize,
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data->caps.Usage,
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data->caps.UsagePage,
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data->caps.InputReportByteLength,
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data->caps.OutputReportByteLength,
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data->caps.FeatureReportByteLength,
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data->caps.NumberLinkCollectionNodes,
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data->caps.NumberInputButtonCaps,
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data->caps.NumberInputValueCaps,
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data->caps.NumberInputDataIndices,
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data->caps.NumberOutputButtonCaps,
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data->caps.NumberOutputValueCaps,
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data->caps.NumberOutputDataIndices,
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data->caps.NumberFeatureButtonCaps,
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data->caps.NumberFeatureValueCaps,
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data->caps.NumberFeatureDataIndices,
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data->dwInputReportCount,
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data->dwOutputReportCount,
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data->dwFeatureReportCount,
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data->dwOutputReportOffset,
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data->dwFeatureReportOffset);
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r = HID_INPUT_REPORTS(data);
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for (i = 0; i < data->dwInputReportCount; i++)
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{
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debug_print_report("INPUT", r);
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r = HID_NEXT_REPORT(data, r);
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}
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r = HID_OUTPUT_REPORTS(data);
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for (i = 0; i < data->dwOutputReportCount; i++)
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{
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debug_print_report("OUTPUT", r);
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r = HID_NEXT_REPORT(data, r);
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}
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r = HID_FEATURE_REPORTS(data);
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for (i = 0; i < data->dwFeatureReportCount; i++)
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{
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debug_print_report("FEATURE", r);
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r = HID_NEXT_REPORT(data, r);
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}
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TRACE(">>> END Preparsed Data\n");
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}
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}
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static int getValue(int bsize, int source)
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{
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int mask = 0xff;
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int negative = 0x80;
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int outofrange = 0x100;
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int value;
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unsigned int i;
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if (bsize == 4)
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return source;
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for (i = 1; i < bsize; i++)
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{
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mask = (mask<<8) + 0xff;
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negative = (negative<<8);
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outofrange = (outofrange<<8);
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}
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value = (source&mask);
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if (value&negative)
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value = -1 * (outofrange - value);
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return value;
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}
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void parse_io_feature(unsigned int bSize, int itemVal, int bTag, unsigned int *feature_index, struct feature *feature)
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{
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if (bSize <= 0)
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{
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return;
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}
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else
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{
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if ((itemVal & INPUT_DATA) == 0)
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feature->isData = TRUE;
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else
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feature->isData = FALSE; /* Const */
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if ((itemVal & INPUT_ARRAY) == 0)
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feature->isArray= TRUE;
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else
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feature->isArray= FALSE; /* Var */
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if ((itemVal & INPUT_ABS) == 0)
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feature->IsAbsolute = TRUE;
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else
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feature->IsAbsolute = FALSE; /* Rel */
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if ((itemVal & INPUT_WRAP) == 0)
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feature->Wrap = FALSE;
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else
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feature->Wrap = TRUE;
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if ((itemVal & INPUT_LINEAR) == 0)
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feature->Linear = TRUE;
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else
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feature->Linear = FALSE;
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if ((itemVal & INPUT_PREFSTATE) == 0)
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feature->prefState = TRUE;
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else
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feature->prefState = FALSE;
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if ((itemVal & INPUT_NULL) == 0)
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feature->HasNull = FALSE;
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else
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feature->HasNull = TRUE;
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if (bTag != TAG_MAIN_INPUT)
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{
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if ((itemVal & INPUT_VOLATILE) == 0)
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feature->Volatile = FALSE;
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else
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feature->Volatile = TRUE;
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}
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if (bSize > 1)
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{
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if ((itemVal & INPUT_BITFIELD) == 0)
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feature->BitField = TRUE;
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else
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feature->BitField = FALSE; /* Buffered Bytes */
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}
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feature->index = *feature_index;
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*feature_index = *feature_index + 1;
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}
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}
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void parse_collection(unsigned int bSize, int itemVal, struct collection *collection)
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{
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if (bSize <= 0)
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return;
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else
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{
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collection->type = itemVal;
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if (itemVal >= 0x07 && itemVal <= 0x7F) {
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ERR(" (Reserved 0x%x )\n", itemVal);
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}
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else if (itemVal >= 0x80 && itemVal <= 0xFF) {
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ERR(" (Vendor Defined 0x%x )\n", itemVal);
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}
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}
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}
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|
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static void new_caps(struct caps *caps)
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{
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caps->IsRange = 0;
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caps->IsStringRange = 0;
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caps->IsDesignatorRange = 0;
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caps->usage_count = 0;
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}
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|
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static int parse_descriptor(BYTE *descriptor, unsigned int index, unsigned int length, unsigned int *feature_index, unsigned int *collection_index, struct collection *collection, struct caps *caps, struct list *features)
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{
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unsigned int i;
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for (i = index; i < length;)
|
|
{
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BYTE b0 = descriptor[i++];
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int bSize = b0 & 0x03;
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int bType = (b0 >> 2) & 0x03;
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int bTag = (b0 >> 4) & 0x0F;
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bSize = (bSize == 3) ? 4 : bSize;
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if (bType == TAG_TYPE_RESERVED && bTag == 0x0F && bSize == 2 &&
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i + 2 < length)
|
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{
|
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/* Long data items: Should be unused */
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ERR("Long Data Item, should be unused\n");
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}
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|
else
|
|
{
|
|
int bSizeActual = 0;
|
|
int itemVal = 0;
|
|
unsigned int j;
|
|
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for (j = 0; j < bSize; j++)
|
|
{
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if (i + j < length)
|
|
{
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itemVal += descriptor[i + j] << (8 * j);
|
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bSizeActual++;
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}
|
|
}
|
|
TRACE(" 0x%x[%i], type %i , tag %i, size %i, val %i\n",b0,i-1,bType, bTag, bSize, itemVal );
|
|
|
|
if (bType == TAG_TYPE_MAIN)
|
|
{
|
|
struct feature *feature;
|
|
switch(bTag)
|
|
{
|
|
case TAG_MAIN_INPUT:
|
|
feature = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*feature));
|
|
list_add_tail(&collection->features, &feature->col_entry);
|
|
list_add_tail(features, &feature->entry);
|
|
feature->type = HidP_Input;
|
|
parse_io_feature(bSize, itemVal, bTag, feature_index, feature);
|
|
feature->caps = *caps;
|
|
feature->collection = collection;
|
|
new_caps(caps);
|
|
break;
|
|
case TAG_MAIN_OUTPUT:
|
|
feature = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*feature));
|
|
list_add_tail(&collection->features, &feature->col_entry);
|
|
list_add_tail(features, &feature->entry);
|
|
feature->type = HidP_Output;
|
|
parse_io_feature(bSize, itemVal, bTag, feature_index, feature);
|
|
feature->caps = *caps;
|
|
feature->collection = collection;
|
|
new_caps(caps);
|
|
break;
|
|
case TAG_MAIN_FEATURE:
|
|
feature = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*feature));
|
|
list_add_tail(&collection->features, &feature->col_entry);
|
|
list_add_tail(features, &feature->entry);
|
|
feature->type = HidP_Feature;
|
|
parse_io_feature(bSize, itemVal, bTag, feature_index, feature);
|
|
feature->caps = *caps;
|
|
feature->collection = collection;
|
|
new_caps(caps);
|
|
break;
|
|
case TAG_MAIN_COLLECTION:
|
|
{
|
|
struct collection *subcollection = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(struct collection));
|
|
list_add_tail(&collection->collections, &subcollection->entry);
|
|
subcollection->parent = collection;
|
|
/* Only set our collection once...
|
|
We do not properly handle composite devices yet. */
|
|
if (*collection_index == 0)
|
|
collection->caps = *caps;
|
|
subcollection->caps = *caps;
|
|
subcollection->index = *collection_index;
|
|
*collection_index = *collection_index + 1;
|
|
list_init(&subcollection->features);
|
|
list_init(&subcollection->collections);
|
|
new_caps(caps);
|
|
|
|
parse_collection(bSize, itemVal, subcollection);
|
|
|
|
i = parse_descriptor(descriptor, i+1, length, feature_index, collection_index, subcollection, caps, features);
|
|
continue;
|
|
}
|
|
case TAG_MAIN_END_COLLECTION:
|
|
return i;
|
|
default:
|
|
ERR("Unknown (bTag: 0x%x, bType: 0x%x)\n", bTag, bType);
|
|
}
|
|
}
|
|
else if (bType == TAG_TYPE_GLOBAL)
|
|
{
|
|
switch(bTag)
|
|
{
|
|
case TAG_GLOBAL_USAGE_PAGE:
|
|
caps->UsagePage = getValue(bSize, itemVal);
|
|
break;
|
|
case TAG_GLOBAL_LOGICAL_MINIMUM:
|
|
caps->LogicalMin = getValue(bSize, itemVal);
|
|
break;
|
|
case TAG_GLOBAL_LOGICAL_MAXIMUM:
|
|
caps->LogicalMax = getValue(bSize, itemVal);
|
|
break;
|
|
case TAG_GLOBAL_PHYSICAL_MINIMUM:
|
|
caps->PhysicalMin = getValue(bSize, itemVal);
|
|
break;
|
|
case TAG_GLOBAL_PHYSICAL_MAXIMUM:
|
|
caps->PhysicalMax = getValue(bSize, itemVal);
|
|
break;
|
|
case TAG_GLOBAL_UNIT_EXPONENT:
|
|
caps->UnitsExp = getValue(bSize, itemVal);
|
|
break;
|
|
case TAG_GLOBAL_UNIT:
|
|
caps->Units = getValue(bSize, itemVal);
|
|
break;
|
|
case TAG_GLOBAL_REPORT_SIZE:
|
|
caps->BitSize = getValue(bSize, itemVal);
|
|
break;
|
|
case TAG_GLOBAL_REPORT_ID:
|
|
caps->ReportID = getValue(bSize, itemVal);
|
|
break;
|
|
case TAG_GLOBAL_REPORT_COUNT:
|
|
caps->ReportCount = getValue(bSize, itemVal);
|
|
break;
|
|
case TAG_GLOBAL_PUSH:
|
|
FIXME("Unhandled Push\n");
|
|
break;
|
|
case TAG_GLOBAL_POP:
|
|
FIXME("Unhandled Pop\n");
|
|
break;
|
|
default:
|
|
ERR("Unknown (bTag: 0x%x, bType: 0x%x)\n", bTag, bType);
|
|
}
|
|
}
|
|
else if (bType == TAG_TYPE_LOCAL)
|
|
{
|
|
switch(bTag)
|
|
{
|
|
case TAG_LOCAL_USAGE:
|
|
if (caps->usage_count >= USAGE_MAX)
|
|
FIXME("More than %i individual usages defined\n",USAGE_MAX);
|
|
else
|
|
{
|
|
caps->u.NotRange.Usage[caps->usage_count++] = getValue(bSize, itemVal);
|
|
caps->IsRange = FALSE;
|
|
}
|
|
break;
|
|
case TAG_LOCAL_USAGE_MINIMUM:
|
|
caps->usage_count = 1;
|
|
caps->u.Range.UsageMin = getValue(bSize, itemVal);
|
|
caps->IsRange = TRUE;
|
|
break;
|
|
case TAG_LOCAL_USAGE_MAXIMUM:
|
|
caps->usage_count = 1;
|
|
caps->u.Range.UsageMax = getValue(bSize, itemVal);
|
|
caps->IsRange = TRUE;
|
|
break;
|
|
case TAG_LOCAL_DESIGNATOR_INDEX:
|
|
caps->u.NotRange.DesignatorIndex = getValue(bSize, itemVal);
|
|
caps->IsDesignatorRange = FALSE;
|
|
break;
|
|
case TAG_LOCAL_DESIGNATOR_MINIMUM:
|
|
caps->u.Range.DesignatorMin = getValue(bSize, itemVal);
|
|
caps->IsDesignatorRange = TRUE;
|
|
break;
|
|
case TAG_LOCAL_DESIGNATOR_MAXIMUM:
|
|
caps->u.Range.DesignatorMax = getValue(bSize, itemVal);
|
|
caps->IsDesignatorRange = TRUE;
|
|
break;
|
|
case TAG_LOCAL_STRING_INDEX:
|
|
caps->u.NotRange.StringIndex = getValue(bSize, itemVal);
|
|
caps->IsStringRange = FALSE;
|
|
break;
|
|
case TAG_LOCAL_STRING_MINIMUM:
|
|
caps->u.Range.StringMin = getValue(bSize, itemVal);
|
|
caps->IsStringRange = TRUE;
|
|
break;
|
|
case TAG_LOCAL_STRING_MAXIMUM:
|
|
caps->u.Range.StringMax = getValue(bSize, itemVal);
|
|
caps->IsStringRange = TRUE;
|
|
break;
|
|
case TAG_LOCAL_DELIMITER:
|
|
caps->Delim = getValue(bSize, itemVal);
|
|
break;
|
|
default:
|
|
ERR("Unknown (bTag: 0x%x, bType: 0x%x)\n", bTag, bType);
|
|
}
|
|
}
|
|
else
|
|
ERR("Unknown (bTag: 0x%x, bType: 0x%x)\n", bTag, bType);
|
|
|
|
i += bSize;
|
|
}
|
|
}
|
|
return i;
|
|
}
|
|
|
|
static inline void new_report(WINE_HID_REPORT *wine_report, struct feature* feature)
|
|
{
|
|
wine_report->reportID = feature->caps.ReportID;
|
|
wine_report->dwSize = sizeof(*wine_report) - sizeof(WINE_HID_ELEMENT);
|
|
wine_report->elementCount = 0;
|
|
}
|
|
|
|
static void build_elements(WINE_HID_REPORT *wine_report, struct feature* feature, DWORD *bitOffset)
|
|
{
|
|
unsigned int i;
|
|
|
|
if (!feature->isData)
|
|
{
|
|
*bitOffset = *bitOffset + (feature->caps.BitSize * feature->caps.ReportCount);
|
|
return;
|
|
}
|
|
|
|
for (i = 0; i < feature->caps.usage_count; i++)
|
|
{
|
|
WINE_HID_ELEMENT *wine_element = &wine_report->Elements[wine_report->elementCount];
|
|
|
|
wine_element->valueStartBit = *bitOffset;
|
|
if (feature->caps.UsagePage == HID_USAGE_PAGE_BUTTON)
|
|
{
|
|
wine_element->ElementType = ButtonElement;
|
|
wine_element->caps.button.UsagePage = feature->caps.UsagePage;
|
|
wine_element->caps.button.ReportID = feature->caps.ReportID;
|
|
wine_element->caps.button.BitField = feature->BitField;
|
|
wine_element->caps.button.IsRange = feature->caps.IsRange;
|
|
wine_element->caps.button.IsStringRange = feature->caps.IsStringRange;
|
|
wine_element->caps.button.IsDesignatorRange = feature->caps.IsDesignatorRange;
|
|
wine_element->caps.button.IsAbsolute = feature->IsAbsolute;
|
|
if (wine_element->caps.button.IsRange)
|
|
{
|
|
wine_element->bitCount = (feature->caps.u.Range.UsageMax - feature->caps.u.Range.UsageMin) + 1;
|
|
*bitOffset = *bitOffset + wine_element->bitCount;
|
|
wine_element->caps.button.u.Range.UsageMin = feature->caps.u.Range.UsageMin;
|
|
wine_element->caps.button.u.Range.UsageMax = feature->caps.u.Range.UsageMax;
|
|
wine_element->caps.button.u.Range.StringMin = feature->caps.u.Range.StringMin;
|
|
wine_element->caps.button.u.Range.StringMax = feature->caps.u.Range.StringMax;
|
|
wine_element->caps.button.u.Range.DesignatorMin = feature->caps.u.Range.DesignatorMin;
|
|
wine_element->caps.button.u.Range.DesignatorMax = feature->caps.u.Range.DesignatorMax;
|
|
}
|
|
else
|
|
{
|
|
*bitOffset = *bitOffset + 1;
|
|
wine_element->bitCount = 1;
|
|
wine_element->caps.button.u.NotRange.Usage = feature->caps.u.NotRange.Usage[i];
|
|
wine_element->caps.button.u.NotRange.StringIndex = feature->caps.u.NotRange.StringIndex;
|
|
wine_element->caps.button.u.NotRange.DesignatorIndex = feature->caps.u.NotRange.DesignatorIndex;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
wine_element->ElementType = ValueElement;
|
|
wine_element->caps.value.UsagePage = feature->caps.UsagePage;
|
|
wine_element->caps.value.ReportID = feature->caps.ReportID;
|
|
wine_element->caps.value.BitField = feature->BitField;
|
|
wine_element->caps.value.IsRange = feature->caps.IsRange;
|
|
wine_element->caps.value.IsStringRange = feature->caps.IsStringRange;
|
|
wine_element->caps.value.IsDesignatorRange = feature->caps.IsDesignatorRange;
|
|
wine_element->caps.value.IsAbsolute = feature->IsAbsolute;
|
|
wine_element->caps.value.HasNull = feature->HasNull;
|
|
wine_element->caps.value.BitSize = feature->caps.BitSize;
|
|
if (feature->caps.usage_count > 1)
|
|
wine_element->caps.value.ReportCount = 1;
|
|
else
|
|
wine_element->caps.value.ReportCount = feature->caps.ReportCount;
|
|
wine_element->bitCount = (feature->caps.BitSize * wine_element->caps.value.ReportCount);
|
|
*bitOffset = *bitOffset + wine_element->bitCount;
|
|
wine_element->caps.value.UnitsExp = feature->caps.UnitsExp;
|
|
wine_element->caps.value.Units = feature->caps.Units;
|
|
wine_element->caps.value.LogicalMin = feature->caps.LogicalMin;
|
|
wine_element->caps.value.LogicalMax = feature->caps.LogicalMax;
|
|
wine_element->caps.value.PhysicalMin = feature->caps.PhysicalMin;
|
|
wine_element->caps.value.PhysicalMax = feature->caps.PhysicalMax;
|
|
if (wine_element->caps.value.IsRange)
|
|
{
|
|
wine_element->caps.value.u.Range.UsageMin = feature->caps.u.Range.UsageMin;
|
|
wine_element->caps.value.u.Range.UsageMax = feature->caps.u.Range.UsageMax;
|
|
wine_element->caps.value.u.Range.StringMin = feature->caps.u.Range.StringMin;
|
|
wine_element->caps.value.u.Range.StringMax = feature->caps.u.Range.StringMax;
|
|
wine_element->caps.value.u.Range.DesignatorMin = feature->caps.u.Range.DesignatorMin;
|
|
wine_element->caps.value.u.Range.DesignatorMax = feature->caps.u.Range.DesignatorMax;
|
|
}
|
|
else
|
|
{
|
|
wine_element->caps.value.u.NotRange.Usage = feature->caps.u.NotRange.Usage[i];
|
|
wine_element->caps.value.u.NotRange.StringIndex = feature->caps.u.NotRange.StringIndex;
|
|
wine_element->caps.value.u.NotRange.DesignatorIndex = feature->caps.u.NotRange.DesignatorIndex;
|
|
}
|
|
}
|
|
|
|
wine_report->elementCount++;
|
|
}
|
|
}
|
|
|
|
static void count_elements(struct feature* feature, USHORT *buttons, USHORT *values)
|
|
{
|
|
if (feature->caps.UsagePage == HID_USAGE_PAGE_BUTTON)
|
|
{
|
|
if (feature->caps.IsRange)
|
|
*buttons = *buttons + 1;
|
|
else
|
|
*buttons = *buttons + feature->caps.usage_count;
|
|
}
|
|
else
|
|
{
|
|
if (feature->caps.IsRange)
|
|
*values = *values + 1;
|
|
else
|
|
*values = *values + feature->caps.usage_count;
|
|
}
|
|
}
|
|
|
|
WINE_HIDP_PREPARSED_DATA* build_PreparseData(
|
|
struct feature **features, int feature_count,
|
|
struct feature **input_features, int i_count,
|
|
struct feature **output_features, int o_count,
|
|
struct feature **feature_features, int f_count,
|
|
struct collection *base_collection)
|
|
{
|
|
WINE_HIDP_PREPARSED_DATA *data;
|
|
WINE_HID_REPORT *wine_report = NULL;
|
|
DWORD bitOffset, bitLength;
|
|
unsigned int report_count = 1;
|
|
unsigned int i;
|
|
unsigned int element_count;
|
|
unsigned int size = 0;
|
|
|
|
if (features[0]->caps.ReportID != 0)
|
|
{
|
|
unsigned int *report_ids;
|
|
unsigned int cnt = max(i_count, o_count);
|
|
cnt = max(cnt, f_count);
|
|
report_ids = HeapAlloc(GetProcessHeap(), 0 , sizeof(*report_ids) * cnt);
|
|
|
|
if (i_count)
|
|
{
|
|
report_ids[0] = input_features[0]->caps.ReportID;
|
|
for (i = 1; i < i_count; i++)
|
|
{
|
|
unsigned int j;
|
|
unsigned int found = FALSE;
|
|
for (j = 0; !found && j < i_count; j++)
|
|
{
|
|
if (report_ids[j] == input_features[i]->caps.ReportID)
|
|
found = TRUE;
|
|
}
|
|
if (!found)
|
|
{
|
|
report_ids[report_count] = input_features[i]->caps.ReportID;
|
|
report_count++;
|
|
}
|
|
}
|
|
}
|
|
if (o_count)
|
|
{
|
|
report_count++;
|
|
report_ids[0] = output_features[0]->caps.ReportID;
|
|
for (i = 1; i < o_count; i++)
|
|
{
|
|
unsigned int j;
|
|
unsigned int found = FALSE;
|
|
for (j = 0; !found && j < o_count; j++)
|
|
{
|
|
if (report_ids[j] == output_features[i]->caps.ReportID)
|
|
found = TRUE;
|
|
}
|
|
if (!found)
|
|
{
|
|
report_ids[report_count] = output_features[i]->caps.ReportID;
|
|
report_count++;
|
|
}
|
|
}
|
|
}
|
|
if (f_count)
|
|
{
|
|
report_count++;
|
|
report_ids[0] = feature_features[0]->caps.ReportID;
|
|
for (i = 1; i < f_count; i++)
|
|
{
|
|
unsigned int j;
|
|
unsigned int found = FALSE;
|
|
for (j = 0; !found && j < f_count; j++)
|
|
{
|
|
if (report_ids[j] == feature_features[i]->caps.ReportID)
|
|
found = TRUE;
|
|
}
|
|
if (!found)
|
|
{
|
|
report_ids[report_count] = feature_features[i]->caps.ReportID;
|
|
report_count++;
|
|
}
|
|
}
|
|
}
|
|
HeapFree(GetProcessHeap(), 0, report_ids);
|
|
}
|
|
else
|
|
{
|
|
if (o_count) report_count++;
|
|
if (f_count) report_count++;
|
|
}
|
|
|
|
element_count = 0;
|
|
for (i = 0; i < feature_count; i++)
|
|
element_count += features[i]->caps.usage_count;
|
|
|
|
size = sizeof(WINE_HIDP_PREPARSED_DATA) +
|
|
(element_count * sizeof(WINE_HID_ELEMENT)) +
|
|
(report_count * sizeof(WINE_HID_REPORT));
|
|
|
|
TRACE("%i reports %i elements -> size %i\n",report_count, element_count, size);
|
|
|
|
data = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, size);
|
|
data->magic = HID_MAGIC;
|
|
data->dwSize = size;
|
|
data->caps.Usage = base_collection->caps.u.NotRange.Usage[0];
|
|
data->caps.UsagePage = base_collection->caps.UsagePage;
|
|
|
|
wine_report = data->InputReports;
|
|
if (i_count)
|
|
{
|
|
bitLength = 0;
|
|
new_report(wine_report, input_features[0]);
|
|
data->dwInputReportCount++;
|
|
|
|
if (input_features[0]->caps.ReportID != 0)
|
|
bitOffset = 8;
|
|
else
|
|
bitOffset = 0;
|
|
|
|
for (i = 0; i < i_count; i++)
|
|
{
|
|
if (input_features[i]->caps.ReportID != wine_report->reportID)
|
|
{
|
|
wine_report->dwSize += (sizeof(WINE_HID_ELEMENT) * wine_report->elementCount);
|
|
wine_report = (WINE_HID_REPORT*)(((BYTE*)wine_report)+wine_report->dwSize);
|
|
new_report(wine_report, input_features[i]);
|
|
data->dwInputReportCount++;
|
|
bitLength = max(bitOffset, bitLength);
|
|
if (input_features[i]->caps.ReportID != 0)
|
|
bitOffset = 8;
|
|
else
|
|
bitOffset = 0;
|
|
}
|
|
build_elements(wine_report, input_features[i], &bitOffset);
|
|
count_elements(input_features[i], &data->caps.NumberInputButtonCaps,
|
|
&data->caps.NumberInputValueCaps);
|
|
}
|
|
wine_report->dwSize += (sizeof(WINE_HID_ELEMENT) * wine_report->elementCount);
|
|
bitLength = max(bitOffset, bitLength);
|
|
data->caps.InputReportByteLength = ((bitLength + 7) & ~7)/8;
|
|
}
|
|
|
|
if (o_count)
|
|
{
|
|
bitLength = 0;
|
|
wine_report = (WINE_HID_REPORT*)(((BYTE*)wine_report)+wine_report->dwSize);
|
|
data->dwOutputReportOffset = (BYTE*)wine_report - (BYTE*)data->InputReports;
|
|
new_report(wine_report, output_features[0]);
|
|
data->dwOutputReportCount++;
|
|
if (output_features[0]->caps.ReportID != 0)
|
|
bitOffset = 8;
|
|
else
|
|
bitOffset = 0;
|
|
|
|
for (i = 0; i < o_count; i++)
|
|
{
|
|
if (output_features[i]->caps.ReportID != wine_report->reportID)
|
|
{
|
|
wine_report->dwSize += (sizeof(WINE_HID_ELEMENT) * wine_report->elementCount);
|
|
wine_report = (WINE_HID_REPORT*)(((BYTE*)wine_report)+wine_report->dwSize);
|
|
new_report(wine_report, output_features[i]);
|
|
data->dwOutputReportCount++;
|
|
bitLength = max(bitOffset, bitLength);
|
|
if (output_features[0]->caps.ReportID != 0)
|
|
bitOffset = 8;
|
|
else
|
|
bitOffset = 0;
|
|
}
|
|
build_elements(wine_report, output_features[i], &bitOffset);
|
|
count_elements(output_features[i], &data->caps.NumberOutputButtonCaps,
|
|
&data->caps.NumberOutputValueCaps);
|
|
}
|
|
wine_report->dwSize += (sizeof(WINE_HID_ELEMENT) * wine_report->elementCount);
|
|
bitLength = max(bitOffset, bitLength);
|
|
data->caps.OutputReportByteLength = ((bitLength + 7) & ~7)/8;
|
|
}
|
|
|
|
if (f_count)
|
|
{
|
|
bitLength = 0;
|
|
wine_report = (WINE_HID_REPORT*)(((BYTE*)wine_report)+wine_report->dwSize);
|
|
data->dwFeatureReportOffset = (BYTE*)wine_report - (BYTE*)data->InputReports;
|
|
new_report(wine_report, feature_features[0]);
|
|
data->dwFeatureReportCount++;
|
|
if (feature_features[0]->caps.ReportID != 0)
|
|
bitOffset = 8;
|
|
else
|
|
bitOffset = 0;
|
|
|
|
for (i = 0; i < f_count; i++)
|
|
{
|
|
if (feature_features[i]->caps.ReportID != wine_report->reportID)
|
|
{
|
|
wine_report->dwSize += (sizeof(WINE_HID_ELEMENT) * wine_report->elementCount);
|
|
wine_report = (WINE_HID_REPORT*)((BYTE*)wine_report)+wine_report->dwSize;
|
|
new_report(wine_report, feature_features[i]);
|
|
data->dwFeatureReportCount++;
|
|
bitLength = max(bitOffset, bitLength);
|
|
if (feature_features[0]->caps.ReportID != 0)
|
|
bitOffset = 8;
|
|
else
|
|
bitOffset = 0;
|
|
}
|
|
build_elements(wine_report, feature_features[i], &bitOffset);
|
|
count_elements(feature_features[i], &data->caps.NumberFeatureButtonCaps,
|
|
&data->caps.NumberFeatureValueCaps);
|
|
}
|
|
bitLength = max(bitOffset, bitLength);
|
|
data->caps.FeatureReportByteLength = ((bitLength + 7) & ~7)/8;
|
|
}
|
|
|
|
return data;
|
|
}
|
|
|
|
static void free_collection(struct collection *collection)
|
|
{
|
|
struct feature *fentry, *fnext;
|
|
struct collection *centry, *cnext;
|
|
LIST_FOR_EACH_ENTRY_SAFE(centry, cnext, &collection->collections, struct collection, entry)
|
|
{
|
|
list_remove(¢ry->entry);
|
|
free_collection(centry);
|
|
}
|
|
LIST_FOR_EACH_ENTRY_SAFE(fentry, fnext, &collection->features, struct feature, col_entry)
|
|
{
|
|
list_remove(&fentry->col_entry);
|
|
HeapFree(GetProcessHeap(), 0, fentry);
|
|
}
|
|
HeapFree(GetProcessHeap(), 0, collection);
|
|
}
|
|
|
|
static int compare_reports(const void *a, const void* b)
|
|
{
|
|
struct feature *f1 = *(struct feature **)a;
|
|
struct feature *f2 = *(struct feature **)b;
|
|
int c = (f1->caps.ReportID - f2->caps.ReportID);
|
|
if (c) return c;
|
|
return (f1->index - f2->index);
|
|
}
|
|
|
|
WINE_HIDP_PREPARSED_DATA* ParseDescriptor(BYTE *descriptor, unsigned int length)
|
|
{
|
|
WINE_HIDP_PREPARSED_DATA *data = NULL;
|
|
struct collection *base;
|
|
struct caps caps;
|
|
|
|
struct list features;
|
|
|
|
unsigned int feature_count = 0;
|
|
unsigned int cidx;
|
|
|
|
if (TRACE_ON(hid))
|
|
{
|
|
TRACE("Descriptor[%i]: ", length);
|
|
for (cidx = 0; cidx < length; cidx++)
|
|
TRACE("%x ",descriptor[cidx]);
|
|
TRACE("\n");
|
|
}
|
|
|
|
list_init(&features);
|
|
|
|
base = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*base));
|
|
base->index = 1;
|
|
list_init(&base->features);
|
|
list_init(&base->collections);
|
|
memset(&caps, 0, sizeof(caps));
|
|
|
|
cidx = 0;
|
|
parse_descriptor(descriptor, 0, length, &feature_count, &cidx, base, &caps, &features);
|
|
|
|
debug_collection(base);
|
|
|
|
cidx = 2;
|
|
if (feature_count)
|
|
{
|
|
struct feature *entry;
|
|
struct feature** sorted_features;
|
|
struct feature** input_features;
|
|
struct feature** output_features;
|
|
struct feature** feature_features;
|
|
unsigned int i_count, o_count, f_count;
|
|
unsigned int i;
|
|
|
|
i_count = o_count = f_count = 0;
|
|
|
|
sorted_features = HeapAlloc(GetProcessHeap(), 0, sizeof(*sorted_features) * feature_count);
|
|
input_features = HeapAlloc(GetProcessHeap(), 0, sizeof(*input_features) * feature_count);
|
|
output_features = HeapAlloc(GetProcessHeap(), 0, sizeof(*output_features) * feature_count);
|
|
feature_features = HeapAlloc(GetProcessHeap(), 0, sizeof(*feature_features) * feature_count);
|
|
|
|
i = 0;
|
|
LIST_FOR_EACH_ENTRY(entry, &features, struct feature, entry)
|
|
sorted_features[i++] = entry;
|
|
|
|
/* Sort features base on report if there are multiple reports */
|
|
if (sorted_features[0]->caps.ReportID != 0)
|
|
qsort(sorted_features, feature_count, sizeof(struct feature*), compare_reports);
|
|
|
|
for (i = 0; i < feature_count; i++)
|
|
{
|
|
switch (sorted_features[i]->type)
|
|
{
|
|
case HidP_Input:
|
|
input_features[i_count] = sorted_features[i];
|
|
i_count++;
|
|
break;
|
|
case HidP_Output:
|
|
output_features[o_count] = sorted_features[i];
|
|
o_count++;
|
|
break;
|
|
case HidP_Feature:
|
|
feature_features[f_count] = sorted_features[i];
|
|
f_count++;
|
|
break;
|
|
default:
|
|
ERR("Unknown type %i\n",sorted_features[i]->type);
|
|
}
|
|
}
|
|
|
|
if (TRACE_ON(hid))
|
|
{
|
|
TRACE("DUMP FEATURES:\n");
|
|
TRACE("----INPUT----\n");
|
|
for (cidx = 0; cidx < i_count; cidx++)
|
|
debug_feature(input_features[cidx]);
|
|
TRACE("----OUTPUT----\n");
|
|
for (cidx = 0; cidx < o_count; cidx++)
|
|
debug_feature(output_features[cidx]);
|
|
TRACE("----FEATURE----\n");
|
|
for (cidx = 0; cidx < f_count; cidx++)
|
|
debug_feature(feature_features[cidx]);
|
|
}
|
|
|
|
data = build_PreparseData(sorted_features, feature_count, input_features, i_count, output_features, o_count, feature_features, f_count, base);
|
|
|
|
debug_print_preparsed(data);
|
|
|
|
HeapFree(GetProcessHeap(), 0, sorted_features);
|
|
HeapFree(GetProcessHeap(), 0, input_features);
|
|
HeapFree(GetProcessHeap(), 0, output_features);
|
|
HeapFree(GetProcessHeap(), 0, feature_features);
|
|
}
|
|
|
|
free_collection(base);
|
|
/* We do not have to free the list as free_collection does all the work */
|
|
|
|
return data;
|
|
}
|