1 files changed, 60 insertions, 7 deletions

diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index ee0b76b398cb..3eb02b94fc87 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -117,6 +117,8 @@ struct mt_device {
 #define MT_CLS_TOPSEED                          0x0105
 #define MT_CLS_PANASONIC                        0x0106
 #define MT_CLS_FLATFROG                         0x0107
+#define MT_CLS_GENERALTOUCH_TWOFINGERS          0x0108
+#define MT_CLS_GENERALTOUCH_PWT_TENFINGERS      0x0109
 
 #define MT_DEFAULT_MAXCONTACT   10
 
@@ -200,6 +202,17 @@ static struct mt_class mt_classes[] = {
         { .name = MT_CLS_PANASONIC,
                 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP,
                 .maxcontacts = 4 },
+        { .name = MT_CLS_GENERALTOUCH_TWOFINGERS,
+                .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
+                        MT_QUIRK_VALID_IS_INRANGE |
+                        MT_QUIRK_SLOT_IS_CONTACTNUMBER,
+                .maxcontacts = 2
+        },
+        { .name = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
+                .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
+                        MT_QUIRK_SLOT_IS_CONTACTNUMBER,
+                .maxcontacts = 10
+        },
 
         { .name = MT_CLS_FLATFROG,
                 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
@@ -682,12 +695,10 @@ static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id)
         struct mt_device *td;
         struct mt_class *mtclass = mt_classes; /* MT_CLS_DEFAULT */
 
-        if (id) {
-                for (i = 0; mt_classes[i].name ; i++) {
-                        if (id->driver_data == mt_classes[i].name) {
-                                mtclass = &(mt_classes[i]);
-                                break;
-                        }
+        for (i = 0; mt_classes[i].name ; i++) {
+                if (id->driver_data == mt_classes[i].name) {
+                        mtclass = &(mt_classes[i]);
+                        break;
                 }
         }
 
@@ -747,6 +758,32 @@ static int mt_reset_resume(struct hid_device *hdev)
         mt_set_input_mode(hdev);
         return 0;
 }
+
+static int mt_resume(struct hid_device *hdev)
+{
+        struct usb_interface *intf;
+        struct usb_host_interface *interface;
+        struct usb_device *dev;
+
+        if (hdev->bus != BUS_USB)
+                return 0;
+
+        intf = to_usb_interface(hdev->dev.parent);
+        interface = intf->cur_altsetting;
+        dev = hid_to_usb_dev(hdev);
+
+        /* Some Elan legacy devices require SET_IDLE to be set on resume.
+         * It should be safe to send it to other devices too.
+         * Tested on 3M, Stantum, Cypress, Zytronic, eGalax, and Elan panels. */
+
+        usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
+                        HID_REQ_SET_IDLE,
+                        USB_TYPE_CLASS | USB_RECIP_INTERFACE,
+                        0, interface->desc.bInterfaceNumber,
+                        NULL, 0, USB_CTRL_SET_TIMEOUT);
+
+        return 0;
+}
 #endif
 
 static void mt_remove(struct hid_device *hdev)
@@ -864,7 +901,19 @@ static const struct hid_device_id mt_devices[] = {
                         USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7349) },
         { .driver_data = MT_CLS_EGALAX_SERIAL,
                 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
+                        USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_73F7) },
+        { .driver_data = MT_CLS_EGALAX_SERIAL,
+                MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
                         USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_A001) },
+        { .driver_data = MT_CLS_EGALAX,
+                HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
+                        USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7224) },
+        { .driver_data = MT_CLS_EGALAX,
+                HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
+                        USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72D0) },
+        { .driver_data = MT_CLS_EGALAX,
+                HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
+                        USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72C4) },
 
         /* Elo TouchSystems IntelliTouch Plus panel */
         { .driver_data = MT_CLS_DUAL_NSMU_CONTACTID,
@@ -877,9 +926,12 @@ static const struct hid_device_id mt_devices[] = {
                         USB_DEVICE_ID_MULTITOUCH_3200) },
 
         /* GeneralTouch panel */
-        { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
+        { .driver_data = MT_CLS_GENERALTOUCH_TWOFINGERS,
                 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
                         USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS) },
+        { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
+                MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
+                        USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PWT_TENFINGERS) },
 
         /* Gametel game controller */
         { .driver_data = MT_CLS_DEFAULT,
@@ -1077,6 +1129,7 @@ static struct hid_driver mt_driver = {
         .event = mt_event,
 #ifdef CONFIG_PM
         .reset_resume = mt_reset_resume,
+        .resume = mt_resume,
 #endif
 };