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HID: wacom - make sure wacom_intuos_inout only process in/out events 

Move general events related data validation to wacom_intuos_general.

Signed-off-by: Ping Cheng <pingc@wacom.com>
Reviewed-by: Jason Gerecke <jason.gerecke@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This commit is contained in:
Ping Cheng 2016-01-08 17:15:48 -08:00 committed by Jiri Kosina
parent 599b082095
commit 4750f5fe29
1 changed files with 25 additions and 24 deletions
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49
drivers/hid/wacom_wac.c
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@ -580,11 +580,12 @@ static int wacom_intuos_inout(struct wacom_wac *wacom)
struct wacom_features *features = &wacom->features;
unsigned char *data = wacom->data;
struct input_dev *input = wacom->pen_input;
int idx = 0;
int idx = (features->type == INTUOS) ? (data[1] & 0x01) : 0;
/* tool number */
if (features->type == INTUOS)
idx = data[1] & 0x01;
if (!(((data[1] & 0xfc) == 0xc0) || /* in prox */
((data[1] & 0xfe) == 0x20) || /* in range */
((data[1] & 0xfe) == 0x80))) /* out prox */
return 0;
/* Enter report */
if ((data[1] & 0xfc) == 0xc0) {
@ -676,26 +677,6 @@ static int wacom_intuos_inout(struct wacom_wac *wacom)
return 1;
}
/*
* don't report events for invalid data
*/
/* older I4 styli don't work with new Cintiqs */
if ((!((wacom->id[idx] >> 20) & 0x01) &&
(features->type == WACOM_21UX2)) ||
/* Only large Intuos support Lense Cursor */
(wacom->tool[idx] == BTN_TOOL_LENS &&
(features->type == INTUOS3 ||
features->type == INTUOS3S ||
features->type == INTUOS4 ||
features->type == INTUOS4S ||
features->type == INTUOS5 ||
features->type == INTUOS5S ||
features->type == INTUOSPM ||
features->type == INTUOSPS)) ||
/* Cintiq doesn't send data when RDY bit isn't set */
(features->type == CINTIQ && !(data[1] & 0x40)))
return 1;
wacom->shared->stylus_in_proximity = true;
if (wacom->shared->touch_down)
return 1;
@ -897,6 +878,26 @@ static int wacom_intuos_general(struct wacom_wac *wacom)
return 1;
}
/*
* don't report events for invalid data
*/
/* older I4 styli don't work with new Cintiqs */
if ((!((wacom->id[idx] >> 20) & 0x01) &&
(features->type == WACOM_21UX2)) ||
/* Only large Intuos support Lense Cursor */
(wacom->tool[idx] == BTN_TOOL_LENS &&
(features->type == INTUOS3 ||
features->type == INTUOS3S ||
features->type == INTUOS4 ||
features->type == INTUOS4S ||
features->type == INTUOS5 ||
features->type == INTUOS5S ||
features->type == INTUOSPM ||
features->type == INTUOSPS)) ||
/* Cintiq doesn't send data when RDY bit isn't set */
(features->type == CINTIQ && !(data[1] & 0x40)))
return 1;
x = (be16_to_cpup((__be16 *)&data[2]) << 1) | ((data[9] >> 1) & 1);
y = (be16_to_cpup((__be16 *)&data[4]) << 1) | (data[9] & 1);
distance = data[9] >> 2;