marko10_000
/
wine-wine
forked from Mirrors/wine-wine
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

hidclass.sys: Handle POP and PUSH in device descriptors. 

Signed-off-by: Aric Stewart <aric@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
oldstable
Aric Stewart 2016-11-14 08:29:20 -06:00 committed by Alexandre Julliard
parent 2f1d068abd
commit 3b3b7670ec
1 changed files with 45 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

50
dlls/hidclass.sys/descriptor.c
View File

@ -172,6 +172,11 @@ struct collection {
struct list collections;
};
struct caps_stack {
struct list entry;
struct caps caps;
};
static const char* debugstr_usages(struct caps *caps)
{
if (!caps->IsRange)
@ -458,7 +463,10 @@ static void new_caps(struct caps *caps)
caps->usage_count = 0;
}
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)
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, struct list *stack)
{
unsigned int i;
for (i = index; i < length;)
@ -544,7 +552,7 @@ static int parse_descriptor(BYTE *descriptor, unsigned int index, unsigned int l
parse_collection(bSize, itemVal, subcollection);
i = parse_descriptor(descriptor, i+1, length, feature_index, collection_index, subcollection, caps, features);
i = parse_descriptor(descriptor, i+1, length, feature_index, collection_index, subcollection, caps, features, stack);
continue;
}
case TAG_MAIN_END_COLLECTION:
@ -588,11 +596,30 @@ static int parse_descriptor(BYTE *descriptor, unsigned int index, unsigned int l
caps->ReportCount = getValue(bSize, itemVal);
break;
case TAG_GLOBAL_PUSH:
FIXME("Unhandled Push\n");
{
struct caps_stack *saved = HeapAlloc(GetProcessHeap(), 0, sizeof(*saved));
saved->caps = *caps;
TRACE("Push\n");
list_add_tail(stack, &saved->entry);
break;
}
case TAG_GLOBAL_POP:
FIXME("Unhandled Pop\n");
{
struct list *tail;
struct caps_stack *saved;
TRACE("Pop\n");
tail = list_tail(stack);
if (tail)
{
saved = LIST_ENTRY(tail, struct caps_stack, entry);
*caps = saved->caps;
list_remove(tail);
HeapFree(GetProcessHeap(), 0, saved);
}
else
ERR("Pop but no stack!\n");
break;
}
default:
ERR("Unknown (bTag: 0x%x, bType: 0x%x)\n", bTag, bType);
}
@ -1020,6 +1047,7 @@ WINE_HIDP_PREPARSED_DATA* ParseDescriptor(BYTE *descriptor, unsigned int length)
struct caps caps;
struct list features;
struct list caps_stack;
unsigned int feature_count = 0;
unsigned int cidx;
@ -1037,6 +1065,7 @@ WINE_HIDP_PREPARSED_DATA* ParseDescriptor(BYTE *descriptor, unsigned int length)
}
list_init(&features);
list_init(&caps_stack);
base = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*base));
base->index = 1;
@ -1045,10 +1074,21 @@ WINE_HIDP_PREPARSED_DATA* ParseDescriptor(BYTE *descriptor, unsigned int length)
memset(&caps, 0, sizeof(caps));
cidx = 0;
parse_descriptor(descriptor, 0, length, &feature_count, &cidx, base, &caps, &features);
parse_descriptor(descriptor, 0, length, &feature_count, &cidx, base, &caps, &features, &caps_stack);
debug_collection(base);
if (!list_empty(&caps_stack))
{
struct caps_stack *entry, *cursor;
ERR("%i unpopped device caps on the stack\n", list_count(&caps_stack));
LIST_FOR_EACH_ENTRY_SAFE(entry, cursor, &caps_stack, struct caps_stack, entry)
{
list_remove(&entry->entry);
HeapFree(GetProcessHeap(), 0, entry);
}
}
cidx = 2;
if (feature_count)
{