Input: wacom - add Intuos5 multitouch sensor support

Intuos5 tablets with PTH-* model numbers include a multitouch sensor
which use the same touch reports as the 3rd-generation Bamboo. No
useful information is in the HID descriptor for the touch interface
so hardcoded values are used during setup.

Signed-off-by: Jason Gerecke <killertofu@gmail.com>
Reviewed-by: Chris Bagwell <chris@cnpbagwell.com>
Reviewed-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

diff --git a/drivers/input/tablet/wacom_sys.c b/drivers/input/tablet/wacom_sys.c
index d771338..1c874ad 100644 (file)
--- a/drivers/input/tablet/wacom_sys.c
+++ b/drivers/input/tablet/wacom_sys.c
@@ -233,6 +233,9 @@ static int wacom_parse_logical_collection(unsigned char *report,
  * 3rd gen Bamboo Touch no longer define a Digitizer-Finger Pysical
  * Collection. Instead they define a Logical Collection with a single
  * Logical Maximum for both X and Y.
+ *
+ * Intuos5 touch interface does not contain useful data. We deal with
+ * this after returning from this function.
  */
 static int wacom_parse_hid(struct usb_interface *intf,
                           struct hid_descriptor *hid_desc,
@@ -1085,6 +1088,28 @@ static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *i
        if (error)
                goto fail3;
 
+       /*
+        * Intuos5 has no useful data about its touch interface in its
+        * HID descriptor. If this is the touch interface (wMaxPacketSize
+        * of WACOM_PKGLEN_BBTOUCH3), override the table values.
+        */
+       if (features->type >= INTUOS5S && features->type <= INTUOS5L) {
+               if (endpoint->wMaxPacketSize == WACOM_PKGLEN_BBTOUCH3) {
+                       features->device_type = BTN_TOOL_FINGER;
+                       features->pktlen = WACOM_PKGLEN_BBTOUCH3;
+
+                       features->x_phy =
+                               (features->x_max * 100) / features->x_resolution;
+                       features->y_phy =
+                               (features->y_max * 100) / features->y_resolution;
+
+                       features->x_max = 4096;
+                       features->y_max = 4096;
+               } else {
+                       features->device_type = BTN_TOOL_PEN;
+               }
+       }
+
        wacom_setup_device_quirks(features);
 
        strlcpy(wacom_wac->name, features->name, sizeof(wacom_wac->name));

diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c
index f4a9efd..a617343 100644 (file)
--- a/drivers/input/tablet/wacom_wac.c
+++ b/drivers/input/tablet/wacom_wac.c
@@ -321,6 +321,9 @@ static int wacom_intuos_inout(struct wacom_wac *wacom)
 
        /* Enter report */
        if ((data[1] & 0xfc) == 0xc0) {
+               if (features->type >= INTUOS5S && features->type <= INTUOS5L)
+                       wacom->shared->stylus_in_proximity = true;
+
                /* serial number of the tool */
                wacom->serial[idx] = ((data[3] & 0x0f) << 28) +
                        (data[4] << 20) + (data[5] << 12) +
@@ -406,6 +409,9 @@ static int wacom_intuos_inout(struct wacom_wac *wacom)
 
        /* Exit report */
        if ((data[1] & 0xfe) == 0x80) {
+               if (features->type >= INTUOS5S && features->type <= INTUOS5L)
+                       wacom->shared->stylus_in_proximity = false;
+
                /*
                 * Reset all states otherwise we lose the initial states
                 * when in-prox next time
@@ -1140,9 +1146,6 @@ void wacom_wac_irq(struct wacom_wac *wacom_wac, size_t len)
        case INTUOS4S:
        case INTUOS4:
        case INTUOS4L:
-       case INTUOS5S:
-       case INTUOS5:
-       case INTUOS5L:
        case CINTIQ:
        case WACOM_BEE:
        case WACOM_21UX2:
@@ -1150,6 +1153,15 @@ void wacom_wac_irq(struct wacom_wac *wacom_wac, size_t len)
                sync = wacom_intuos_irq(wacom_wac);
                break;
 
+       case INTUOS5S:
+       case INTUOS5:
+       case INTUOS5L:
+               if (len == WACOM_PKGLEN_BBTOUCH3)
+                       sync = wacom_bpt3_touch(wacom_wac);
+               else
+                       sync = wacom_intuos_irq(wacom_wac);
+               break;
+
        case TABLETPC:
        case TABLETPC2FG:
                sync = wacom_tpc_irq(wacom_wac, len);
@@ -1224,7 +1236,8 @@ void wacom_setup_device_quirks(struct wacom_features *features)
 
        /* these device have multiple inputs */
        if (features->type == TABLETPC || features->type == TABLETPC2FG ||
-           features->type == BAMBOO_PT || features->type == WIRELESS)
+           features->type == BAMBOO_PT || features->type == WIRELESS ||
+           (features->type >= INTUOS5S && features->type <= INTUOS5L))
                features->quirks |= WACOM_QUIRK_MULTI_INPUT;
 
        /* quirk for bamboo touch with 2 low res touches */
@@ -1393,13 +1406,54 @@ void wacom_setup_input_capabilities(struct input_dev *input_dev,
 
        case INTUOS5:
        case INTUOS5L:
+               if (features->device_type == BTN_TOOL_PEN) {
+                       __set_bit(BTN_7, input_dev->keybit);
+                       __set_bit(BTN_8, input_dev->keybit);
+               }
+               /* fall through */
+
+       case INTUOS5S:
+               __set_bit(INPUT_PROP_POINTER, input_dev->propbit);
+
+               if (features->device_type == BTN_TOOL_PEN) {
+                       for (i = 0; i < 7; i++)
+                               __set_bit(BTN_0 + i, input_dev->keybit);
+
+                       input_set_abs_params(input_dev, ABS_DISTANCE, 0,
+                                             features->distance_max,
+                                             0, 0);
+
+                       input_set_abs_params(input_dev, ABS_Z, -900, 899, 0, 0);
+
+                       wacom_setup_intuos(wacom_wac);
+               } else if (features->device_type == BTN_TOOL_FINGER) {
+                       __clear_bit(ABS_MISC, input_dev->absbit);
+
+                       __set_bit(BTN_TOOL_FINGER, input_dev->keybit);
+                       __set_bit(BTN_TOOL_DOUBLETAP, input_dev->keybit);
+                       __set_bit(BTN_TOOL_TRIPLETAP, input_dev->keybit);
+                       __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);
+
+                       input_set_abs_params(input_dev, ABS_MT_POSITION_X,
+                                            0, features->x_max,
+                                            features->x_fuzz, 0);
+                       input_set_abs_params(input_dev, ABS_MT_POSITION_Y,
+                                            0, features->y_max,
+                                            features->y_fuzz, 0);
+               }
+               break;
+
        case INTUOS4:
        case INTUOS4L:
                __set_bit(BTN_7, input_dev->keybit);
                __set_bit(BTN_8, input_dev->keybit);
                /* fall through */
 
-       case INTUOS5S:
        case INTUOS4S:
                for (i = 0; i < 7; i++)
                        __set_bit(BTN_0 + i, input_dev->keybit);