Merge tag 'v3.7-rc3' into for-linus to sync up with recent USB changes

[pandora-kernel.git] / drivers / input / tablet / wacom_wac.c

diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c
index c30d4c9..0a67031 100644 (file)
--- a/drivers/input/tablet/wacom_wac.c
+++ b/drivers/input/tablet/wacom_wac.c
@@ -806,6 +806,70 @@ static int find_slot_from_contactid(struct wacom_wac *wacom, int contactid)
        return -1;
 }
 
+static int int_dist(int x1, int y1, int x2, int y2)
+{
+       int x = x2 - x1;
+       int y = y2 - y1;
+
+       return int_sqrt(x*x + y*y);
+}
+
+static int wacom_24hdt_irq(struct wacom_wac *wacom)
+{
+       struct input_dev *input = wacom->input;
+       char *data = wacom->data;
+       int i;
+       int current_num_contacts = data[61];
+       int contacts_to_send = 0;
+
+       /*
+        * First packet resets the counter since only the first
+        * packet in series will have non-zero current_num_contacts.
+        */
+       if (current_num_contacts)
+               wacom->num_contacts_left = current_num_contacts;
+
+       /* There are at most 4 contacts per packet */
+       contacts_to_send = min(4, wacom->num_contacts_left);
+
+       for (i = 0; i < contacts_to_send; i++) {
+               int offset = (WACOM_BYTES_PER_24HDT_PACKET * i) + 1;
+               bool touch = data[offset] & 0x1 && !wacom->shared->stylus_in_proximity;
+               int id = data[offset + 1];
+               int slot = find_slot_from_contactid(wacom, id);
+
+               if (slot < 0)
+                       continue;
+               input_mt_slot(input, slot);
+               input_mt_report_slot_state(input, MT_TOOL_FINGER, touch);
+
+               if (touch) {
+                       int t_x = le16_to_cpup((__le16 *)&data[offset + 2]);
+                       int c_x = le16_to_cpup((__le16 *)&data[offset + 4]);
+                       int t_y = le16_to_cpup((__le16 *)&data[offset + 6]);
+                       int c_y = le16_to_cpup((__le16 *)&data[offset + 8]);
+                       int w = le16_to_cpup((__le16 *)&data[offset + 10]);
+                       int h = le16_to_cpup((__le16 *)&data[offset + 12]);
+
+                       input_report_abs(input, ABS_MT_POSITION_X, t_x);
+                       input_report_abs(input, ABS_MT_POSITION_Y, t_y);
+                       input_report_abs(input, ABS_MT_TOUCH_MAJOR, min(w,h));
+                       input_report_abs(input, ABS_MT_WIDTH_MAJOR, min(w, h) + int_dist(t_x, t_y, c_x, c_y));
+                       input_report_abs(input, ABS_MT_WIDTH_MINOR, min(w, h));
+                       input_report_abs(input, ABS_MT_ORIENTATION, w > h);
+               }
+               wacom->slots[slot] = touch ? id : -1;
+       }
+
+       input_mt_report_pointer_emulation(input, true);
+
+       wacom->num_contacts_left -= contacts_to_send;
+       if (wacom->num_contacts_left <= 0)
+               wacom->num_contacts_left = 0;
+
+       return 1;
+}
+
 static int wacom_mt_touch(struct wacom_wac *wacom)
 {
        struct input_dev *input = wacom->input;
@@ -1255,6 +1319,10 @@ void wacom_wac_irq(struct wacom_wac *wacom_wac, size_t len)
                sync = wacom_intuos_irq(wacom_wac);
                break;
 
+       case WACOM_24HDT:
+               sync = wacom_24hdt_irq(wacom_wac);
+               break;
+
        case INTUOS5S:
        case INTUOS5:
        case INTUOS5L:
@@ -1340,7 +1408,8 @@ void wacom_setup_device_quirks(struct wacom_features *features)
 
        /* these device have multiple inputs */
        if (features->type >= WIRELESS ||
-           (features->type >= INTUOS5S && features->type <= INTUOS5L))
+           (features->type >= INTUOS5S && features->type <= INTUOS5L) ||
+           (features->oVid && features->oPid))
                features->quirks |= WACOM_QUIRK_MULTI_INPUT;
 
        /* quirk for bamboo touch with 2 low res touches */
@@ -1578,6 +1647,15 @@ int wacom_setup_input_capabilities(struct input_dev *input_dev,
                __set_bit(INPUT_PROP_POINTER, input_dev->propbit);
                break;
 
+       case WACOM_24HDT:
+               if (features->device_type == BTN_TOOL_FINGER) {
+                       input_set_abs_params(input_dev, ABS_MT_TOUCH_MAJOR, 0, features->x_max, 0, 0);
+                       input_set_abs_params(input_dev, ABS_MT_WIDTH_MAJOR, 0, features->x_max, 0, 0);
+                       input_set_abs_params(input_dev, ABS_MT_WIDTH_MINOR, 0, features->y_max, 0, 0);
+                       input_set_abs_params(input_dev, ABS_MT_ORIENTATION, 0, 1, 0, 0);
+               }
+               /* fall through */
+
        case MTSCREEN:
                if (features->device_type == BTN_TOOL_FINGER) {
                        wacom_wac->slots = kmalloc(features->touch_max *
@@ -1872,8 +1950,11 @@ static const struct wacom_features wacom_features_0xF4 =
        { "Wacom Cintiq 24HD",       WACOM_PKGLEN_INTUOS,   104480, 65600, 2047,
          63, WACOM_24HD, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES };
 static const struct wacom_features wacom_features_0xF8 =
-       { "Wacom Cintiq 24HD touch", WACOM_PKGLEN_INTUOS,   104480, 65600, 2047,
-         63, WACOM_24HD, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES };
+       { "Wacom Cintiq 24HD touch", WACOM_PKGLEN_INTUOS,   104480, 65600, 2047, /* Pen */
+         63, WACOM_24HD, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES, .oVid = USB_VENDOR_ID_WACOM, .oPid = 0xf6 };
+static const struct wacom_features wacom_features_0xF6 =
+       { "Wacom Cintiq 24HD touch", .type = WACOM_24HDT, /* Touch */
+         .oVid = USB_VENDOR_ID_WACOM, .oPid = 0xf8, .touch_max = 10 };
 static const struct wacom_features wacom_features_0x3F =
        { "Wacom Cintiq 21UX",    WACOM_PKGLEN_INTUOS,    87200, 65600, 1023,
          63, CINTIQ, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES };
@@ -2116,6 +2197,7 @@ const struct usb_device_id wacom_ids[] = {
        { USB_DEVICE_WACOM(0x47) },
        { USB_DEVICE_WACOM(0xF4) },
        { USB_DEVICE_WACOM(0xF8) },
+       { USB_DEVICE_WACOM(0xF6) },
        { USB_DEVICE_WACOM(0xFA) },
        { USB_DEVICE_LENOVO(0x6004) },
        { }