Differential D16357 Diff 45648 head/sys/dev/usb/usb_hid.c

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head/sys/dev/usb/usb_hid.c

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#endif /* USB_GLOBAL_INCLUDE_FILE */		#endif /* USB_GLOBAL_INCLUDE_FILE */

static void hid_clear_local(struct hid_item *);		static void hid_clear_local(struct hid_item *);
static uint8_t hid_get_byte(struct hid_data *s, const uint16_t wSize);		static uint8_t hid_get_byte(struct hid_data *s, const uint16_t wSize);

#define MAXUSAGE 64		#define MAXUSAGE 64
#define MAXPUSH 4		#define MAXPUSH 4
#define MAXID 16		#define MAXID 16
		#define MAXLOCCNT 1024

struct hid_pos_data {		struct hid_pos_data {
int32_t rid;		int32_t rid;
uint32_t pos;		uint32_t pos;
};		};

struct hid_data {		struct hid_data {
const uint8_t *start;		const uint8_t *start;
const uint8_t *end;		const uint8_t *end;
const uint8_t *p;		const uint8_t *p;
struct hid_item cur[MAXPUSH];		struct hid_item cur[MAXPUSH];
struct hid_pos_data last_pos[MAXID];		struct hid_pos_data last_pos[MAXID];
int32_t usages_min[MAXUSAGE];		int32_t usages_min[MAXUSAGE];
int32_t usages_max[MAXUSAGE];		int32_t usages_max[MAXUSAGE];
int32_t usage_last; /* last seen usage */		int32_t usage_last; /* last seen usage */
uint32_t loc_size; /* last seen size */		uint32_t loc_size; /* last seen size */
uint32_t loc_count; /* last seen count */		uint32_t loc_count; /* last seen count */
		uint32_t ncount; /* end usage item count */
		uint32_t icount; /* current usage item count */
uint8_t kindset; /* we have 5 kinds so 8 bits are enough */		uint8_t kindset; /* we have 5 kinds so 8 bits are enough */
uint8_t pushlevel; /* current pushlevel */		uint8_t pushlevel; /* current pushlevel */
uint8_t ncount; /* end usage item count */
uint8_t icount; /* current usage item count */
uint8_t nusage; /* end "usages_min/max" index */		uint8_t nusage; /* end "usages_min/max" index */
uint8_t iusage; /* current "usages_min/max" index */		uint8_t iusage; /* current "usages_min/max" index */
uint8_t ousage; /* current "usages_min/max" offset */		uint8_t ousage; /* current "usages_min/max" offset */
uint8_t susage; /* usage set flags */		uint8_t susage; /* usage set flags */
};		};

/------------------------------------------------------------------------		/------------------------------------------------------------------------
* hid_clear_local		* hid_clear_local
▲ Show 20 Lines • Show All 236 Lines • ▼ Show 20 Lines	default:
continue;		continue;
}		}

switch (bType) {		switch (bType) {
case 0: /* Main */		case 0: /* Main */
switch (bTag) {		switch (bTag) {
case 8: /* Input */		case 8: /* Input */
c->kind = hid_input;		c->kind = hid_input;
c->flags = dval;
ret:		ret:
		c->flags = dval;
c->loc.count = s->loc_count;		c->loc.count = s->loc_count;
c->loc.size = s->loc_size;		c->loc.size = s->loc_size;

if (c->flags & HIO_VARIABLE) {		if (c->flags & HIO_VARIABLE) {
/* range check usage count */		/* range check usage count */
if (c->loc.count > 255) {		if (c->loc.count > MAXLOCCNT) {
DPRINTFN(0, "Number of "		DPRINTFN(0, "Number of "
"items(%u) truncated to 255\n",		"items(%u) truncated to %u\n",
(unsigned)(c->loc.count));		(unsigned)(c->loc.count),
s->ncount = 255;		MAXLOCCNT);
		s->ncount = MAXLOCCNT;
} else		} else
s->ncount = c->loc.count;		s->ncount = c->loc.count;

/*		/*
* The "top" loop will return		* The "top" loop will return
* one and one item:		* one and one item:
*/		*/
c->loc.count = 1;		c->loc.count = 1;
} else {		} else {
s->ncount = 1;		s->ncount = 1;
}		}
goto top;		goto top;

case 9: /* Output */		case 9: /* Output */
c->kind = hid_output;		c->kind = hid_output;
c->flags = dval;
goto ret;		goto ret;
case 10: /* Collection */		case 10: /* Collection */
c->kind = hid_collection;		c->kind = hid_collection;
c->collection = dval;		c->collection = dval;
c->collevel++;		c->collevel++;
c->usage = s->usage_last;		c->usage = s->usage_last;
h = c;		h = c;
return (1);		return (1);
case 11: /* Feature */		case 11: /* Feature */
c->kind = hid_feature;		c->kind = hid_feature;
c->flags = dval;
goto ret;		goto ret;
case 12: /* End collection */		case 12: /* End collection */
c->kind = hid_endcollection;		c->kind = hid_endcollection;
if (c->collevel == 0) {		if (c->collevel == 0) {
DPRINTFN(0, "invalid end collection\n");		DPRINTFN(0, "invalid end collection\n");
return (0);		return (0);
}		}
c->collevel--;		c->collevel--;
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