From: Ping Cheng <pinglinux@xxxxxxxxx>
>From the HID usage table when it is supported.
Tested-by: Chris Bagwell <chris@xxxxxxxxxxxxxx>
Signed-off-by: Chris Bagwell <chris@xxxxxxxxxxxxxx>
Signed-off-by: Ping Cheng <pingc@xxxxxxxxx>
---
drivers/input/tablet/wacom_sys.c | 22 ++++++++++++++-
drivers/input/tablet/wacom_wac.c | 57 +++++++++++++++++++++++--------------
drivers/input/tablet/wacom_wac.h | 1 +
3 files changed, 57 insertions(+), 23 deletions(-)
diff --git a/drivers/input/tablet/wacom_sys.c b/drivers/input/tablet/wacom_sys.c
index b09d939..950af65 100644
--- a/drivers/input/tablet/wacom_sys.c
+++ b/drivers/input/tablet/wacom_sys.c
@@ -28,6 +28,7 @@
#define HID_USAGE_Y_TILT 0x3e
#define HID_USAGE_FINGER 0x22
#define HID_USAGE_STYLUS 0x20
+#define HID_USAGE_CONTACTMAX 0x55
#define HID_COLLECTION 0xa1
#define HID_COLLECTION_LOGICAL 0x02
#define HID_COLLECTION_END 0xc0
@@ -201,6 +202,20 @@ static int wacom_parse_logical_collection(unsigned char *report,
return length;
}
+static void wacom_retrieve_report_data(struct usb_interface *intf,
+ struct wacom_features *features)
+{
+ int result = 0;
+ unsigned char rep_data[2];
+
+ rep_data[0] = 12;
+ result = wacom_get_report(intf, WAC_HID_FEATURE_REPORT,
+ rep_data[0], &rep_data, 2, WAC_MSG_RETRIES);
+
+ if ((result >= 0) && (rep_data[1] > 2))
+ features->touch_max = rep_data[1];
+}
+
/*
* Interface Descriptor of wacom devices can be incomplete and
* inconsistent so wacom_features table is used to store stylus
@@ -374,6 +389,11 @@ static int wacom_parse_hid(struct usb_interface *intf,
pen = 1;
i++;
break;
+
+ case HID_USAGE_CONTACTMAX:
+ wacom_retrieve_report_data(intf, features);
+ i++;
+ break;
}
break;
@@ -1033,7 +1053,7 @@ static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *i
endpoint = &intf->cur_altsetting->endpoint[0].desc;
- /* Retrieve the physical and logical size for OEM devices */
+ /* Retrieve the physical and logical size for touch devices */
error = wacom_retrieve_hid_descriptor(intf, features);
if (error)
goto fail3;
diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c
index a30f229..c8eede1 100644
--- a/drivers/input/tablet/wacom_wac.c
+++ b/drivers/input/tablet/wacom_wac.c
@@ -830,7 +830,8 @@ static int wacom_tpc_irq(struct wacom_wac *wacom, size_t len)
{
char *data = wacom->data;
- dbg("wacom_tpc_irq: received report #%d", data[0]);
+ dbg("wacom_tpc_irq: received report #%d with %d contacts",
+ data[0], wacom->features.touch_max);
switch (len) {
case WACOM_PKGLEN_TPC1FG:
@@ -1374,7 +1375,7 @@ void wacom_setup_input_capabilities(struct input_dev *input_dev,
case TABLETPC2FG:
if (features->device_type == BTN_TOOL_FINGER) {
- input_mt_init_slots(input_dev, 2);
+ input_mt_init_slots(input_dev, features->touch_max);
input_set_abs_params(input_dev, ABS_MT_TOOL_TYPE,
0, MT_TOOL_MAX, 0, 0);
input_set_abs_params(input_dev, ABS_MT_POSITION_X,
@@ -1429,6 +1430,7 @@ void wacom_setup_input_capabilities(struct input_dev *input_dev,
__set_bit(BTN_TOOL_FINGER, input_dev->keybit);
__set_bit(BTN_TOOL_DOUBLETAP, input_dev->keybit);
+ input_mt_init_slots(input_dev, features->touch_max);
if (features->pktlen == WACOM_PKGLEN_BBTOUCH3) {
__set_bit(BTN_TOOL_TRIPLETAP,
@@ -1436,13 +1438,9 @@ void wacom_setup_input_capabilities(struct input_dev *input_dev,
__set_bit(BTN_TOOL_QUADTAP,
input_dev->keybit);
- input_mt_init_slots(input_dev, 16);
-
input_set_abs_params(input_dev,
ABS_MT_TOUCH_MAJOR,
0, 255, 0, 0);
- } else {
- input_mt_init_slots(input_dev, 2);
}
input_set_abs_params(input_dev, ABS_MT_POSITION_X,
@@ -1658,43 +1656,51 @@ static const struct wacom_features wacom_features_0x90 =
0, TABLETPC, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
static const struct wacom_features wacom_features_0x93 =
{ "Wacom ISDv4 93", WACOM_PKGLEN_GRAPHIRE, 26202, 16325, 255,
- 0, TABLETPC, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+ 0, TABLETPC, WACOM_INTUOS_RES, WACOM_INTUOS_RES,
+ .touch_max = 1 };
static const struct wacom_features wacom_features_0x97 =
{ "Wacom ISDv4 97", WACOM_PKGLEN_GRAPHIRE, 26202, 16325, 511,
0, TABLETPC, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
static const struct wacom_features wacom_features_0x9A =
{ "Wacom ISDv4 9A", WACOM_PKGLEN_GRAPHIRE, 26202, 16325, 255,
- 0, TABLETPC, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+ 0, TABLETPC, WACOM_INTUOS_RES, WACOM_INTUOS_RES,
+ .touch_max = 1 };
static const struct wacom_features wacom_features_0x9F =
{ "Wacom ISDv4 9F", WACOM_PKGLEN_GRAPHIRE, 26202, 16325, 255,
0, TABLETPC, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
static const struct wacom_features wacom_features_0xE2 =
{ "Wacom ISDv4 E2", WACOM_PKGLEN_TPC2FG, 26202, 16325, 255,
- 0, TABLETPC2FG, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+ 0, TABLETPC2FG, WACOM_INTUOS_RES, WACOM_INTUOS_RES,
+ .touch_max = 2 };
static const struct wacom_features wacom_features_0xE3 =
{ "Wacom ISDv4 E3", WACOM_PKGLEN_TPC2FG, 26202, 16325, 255,
- 0, TABLETPC2FG, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+ 0, TABLETPC2FG, WACOM_INTUOS_RES, WACOM_INTUOS_RES,
+ .touch_max = 2 };
static const struct wacom_features wacom_features_0xE6 =
{ "Wacom ISDv4 E6", WACOM_PKGLEN_TPC2FG, 27760, 15694, 255,
- 0, TABLETPC2FG, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+ 0, TABLETPC2FG, WACOM_INTUOS_RES, WACOM_INTUOS_RES,
+ .touch_max = 2 };
static const struct wacom_features wacom_features_0x47 =
{ "Wacom Intuos2 6x8", WACOM_PKGLEN_INTUOS, 20320, 16240, 1023,
31, INTUOS, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
static const struct wacom_features wacom_features_0x84 =
{ "Wacom Wireless Receiver", WACOM_PKGLEN_WIRELESS, 0, 0, 0,
- 0, BAMBOO_WIRELESS, 0, 0 };
+ 0, BAMBOO_WIRELESS, 0, 0, .touch_max = 16 };
static const struct wacom_features wacom_features_0xD0 =
{ "Wacom Bamboo 2FG", WACOM_PKGLEN_BBFUN, 14720, 9200, 1023,
- 31, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+ 31, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES,
+ .touch_max = 2 };
static const struct wacom_features wacom_features_0xD1 =
{ "Wacom Bamboo 2FG 4x5", WACOM_PKGLEN_BBFUN, 14720, 9200, 1023,
- 31, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+ 31, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES,
+ .touch_max = 2 };
static const struct wacom_features wacom_features_0xD2 =
{ "Wacom Bamboo Craft", WACOM_PKGLEN_BBFUN, 14720, 9200, 1023,
31, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
static const struct wacom_features wacom_features_0xD3 =
{ "Wacom Bamboo 2FG 6x8", WACOM_PKGLEN_BBFUN, 21648, 13700, 1023,
- 31, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+ 31, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES,
+ .touch_max = 2 };
static const struct wacom_features wacom_features_0xD4 =
{ "Wacom Bamboo Pen", WACOM_PKGLEN_BBFUN, 14720, 9200, 1023,
31, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
@@ -1703,28 +1709,35 @@ static const struct wacom_features wacom_features_0xD5 =
31, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
static const struct wacom_features wacom_features_0xD6 =
{ "Wacom BambooPT 2FG 4x5", WACOM_PKGLEN_BBFUN, 14720, 9200, 1023,
- 31, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+ 31, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES,
+ .touch_max = 2 };
static const struct wacom_features wacom_features_0xD7 =
{ "Wacom BambooPT 2FG Small", WACOM_PKGLEN_BBFUN, 14720, 9200, 1023,
- 31, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+ 31, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES,
+ .touch_max = 2 };
static const struct wacom_features wacom_features_0xD8 =
{ "Wacom Bamboo Comic 2FG", WACOM_PKGLEN_BBFUN, 21648, 13700, 1023,
- 31, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+ 31, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES,
+ .touch_max = 2 };
static const struct wacom_features wacom_features_0xDA =
{ "Wacom Bamboo 2FG 4x5 SE", WACOM_PKGLEN_BBFUN, 14720, 9200, 1023,
- 31, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+ 31, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES,
+ .touch_max = 2 };
static struct wacom_features wacom_features_0xDB =
{ "Wacom Bamboo 2FG 6x8 SE", WACOM_PKGLEN_BBFUN, 21648, 13700, 1023,
- 31, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+ 31, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES,
+ .touch_max = 2 };
static const struct wacom_features wacom_features_0xDD =
{ "Wacom Bamboo Connect", WACOM_PKGLEN_BBPEN, 14720, 9200, 1023,
31, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
static const struct wacom_features wacom_features_0xDE =
{ "Wacom Bamboo 16FG 4x5", WACOM_PKGLEN_BBPEN, 14720, 9200, 1023,
- 31, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+ 31, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES,
+ .touch_max = 16 };
static const struct wacom_features wacom_features_0xDF =
{ "Wacom Bamboo 16FG 6x8", WACOM_PKGLEN_BBPEN, 21648, 13700, 1023,
- 31, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+ 31, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES,
+ .touch_max = 16 };
static const struct wacom_features wacom_features_0x6004 =
{ "ISD-V4", WACOM_PKGLEN_GRAPHIRE, 12800, 8000, 255,
0, TABLETPC, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
diff --git a/drivers/input/tablet/wacom_wac.h b/drivers/input/tablet/wacom_wac.h
index 2d5e9ee..a0a5b1a 100644
--- a/drivers/input/tablet/wacom_wac.h
+++ b/drivers/input/tablet/wacom_wac.h
@@ -95,6 +95,7 @@ struct wacom_features {
int pressure_fuzz;
int distance_fuzz;
unsigned quirks;
+ unsigned touch_max;
};
struct wacom_shared {
--
1.7.7.6
--
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