HID: multitouch: support PixArt optical touch screen

commit b7ea95ff9baab144dacdc30d752307938c5ab6bf upstream.

This patch modifies hid-multitouch driver for supporting PixArt optical touch
screen.  Because of the device does not have to set initial report, we apply
"HID_QUIRK_NO_INIT_REPORTS" quirk and add the device into hid_blacklist[]

Signed-off-by: Aaron Tian <aaron_tian@pixart.com.tw>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
[bwh: Backported to 3.2: adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig
index d21f6d0..b5cc078 100644 (file)
--- a/drivers/hid/Kconfig
+++ b/drivers/hid/Kconfig
@@ -350,6 +350,7 @@ config HID_MULTITOUCH
          - Lumio CrystalTouch panels
          - MosArt dual-touch panels
          - PenMount dual touch panels
+         - PixArt optical touch screen
          - Pixcir dual touch panels
          - eGalax dual-touch panels, including the Joojoo and Wetab tablets
          - Stantum multitouch panels

diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 5cc029f..0c8bea9 100644 (file)
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -1507,6 +1507,9 @@ static const struct hid_device_id hid_have_special_driver[] = {
        { HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_WKB2000) },
        { HID_USB_DEVICE(USB_VENDOR_ID_PENMOUNT, USB_DEVICE_ID_PENMOUNT_PCI) },
        { HID_USB_DEVICE(USB_VENDOR_ID_PETALYNX, USB_DEVICE_ID_PETALYNX_MAXTER_REMOTE) },
+       { HID_USB_DEVICE(USB_VENDOR_ID_PIXART, USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN) },
+       { HID_USB_DEVICE(USB_VENDOR_ID_PIXART, USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN1) },
+       { HID_USB_DEVICE(USB_VENDOR_ID_PIXART, USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN2) },
        { HID_USB_DEVICE(USB_VENDOR_ID_PRIMAX, USB_DEVICE_ID_PRIMAX_KEYBOARD) },
        { HID_USB_DEVICE(USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH) },
        { HID_USB_DEVICE(USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_PIXART_IMAGING_INC_OPTICAL_TOUCH_SCREEN) },

diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index e4317a2..ab75a4e 100644 (file)
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -593,6 +593,11 @@
 #define USB_VENDOR_ID_PI_ENGINEERING   0x05f3
 #define USB_DEVICE_ID_PI_ENGINEERING_VEC_USB_FOOTPEDAL 0xff
 
+#define USB_VENDOR_ID_PIXART                           0x093a
+#define USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN      0x8001
+#define USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN1     0x8002
+#define USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN2     0x8003
+
 #define USB_VENDOR_ID_PLAYDOTCOM       0x0b43
 #define USB_DEVICE_ID_PLAYDOTCOM_EMS_USBII     0x0003
 

diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index 995fc4c..13af0f1 100644 (file)
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -93,6 +93,7 @@ struct mt_class {
 #define MT_CLS_DUAL_INRANGE_CONTACTID          0x0005
 #define MT_CLS_DUAL_INRANGE_CONTACTNUMBER      0x0006
 #define MT_CLS_DUAL_NSMU_CONTACTID             0x0007
+#define MT_CLS_INRANGE_CONTACTNUMBER           0x0009
 
 /* vendor specific classes */
 #define MT_CLS_3M                              0x0101
@@ -155,6 +156,9 @@ struct mt_class mt_classes[] = {
                .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
                        MT_QUIRK_SLOT_IS_CONTACTID,
                .maxcontacts = 2 },
+       { .name = MT_CLS_INRANGE_CONTACTNUMBER,
+               .quirks = MT_QUIRK_VALID_IS_INRANGE |
+                       MT_QUIRK_SLOT_IS_CONTACTNUMBER },
 
        /*
         * vendor specific classes
@@ -744,6 +748,17 @@ static const struct hid_device_id mt_devices[] = {
                HID_USB_DEVICE(USB_VENDOR_ID_PENMOUNT,
                        USB_DEVICE_ID_PENMOUNT_PCI) },
 
+       /* PixArt optical touch screen */
+       { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
+               HID_USB_DEVICE(USB_VENDOR_ID_PIXART,
+                       USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN) },
+       { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
+               HID_USB_DEVICE(USB_VENDOR_ID_PIXART,
+                       USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN1) },
+       { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
+               HID_USB_DEVICE(USB_VENDOR_ID_PIXART,
+                       USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN2) },
+
        /* PixCir-based panels */
        { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
                HID_USB_DEVICE(USB_VENDOR_ID_HANVON,

diff --git a/drivers/hid/usbhid/hid-quirks.c b/drivers/hid/usbhid/hid-quirks.c
index 1fe6b80..f855166 100644 (file)
--- a/drivers/hid/usbhid/hid-quirks.c
+++ b/drivers/hid/usbhid/hid-quirks.c
@@ -68,6 +68,9 @@ static const struct hid_blacklist {
        { USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_AXIS_295, HID_QUIRK_NOGET },
        { USB_VENDOR_ID_DMI, USB_DEVICE_ID_DMI_ENC, HID_QUIRK_NOGET },
        { USB_VENDOR_ID_ELO, USB_DEVICE_ID_ELO_TS2700, HID_QUIRK_NOGET },
+       { USB_VENDOR_ID_PIXART, USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN, HID_QUIRK_NO_INIT_REPORTS },
+       { USB_VENDOR_ID_PIXART, USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN1, HID_QUIRK_NO_INIT_REPORTS },
+       { USB_VENDOR_ID_PIXART, USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN2, HID_QUIRK_NO_INIT_REPORTS },
        { USB_VENDOR_ID_PRODIGE, USB_DEVICE_ID_PRODIGE_CORDLESS, HID_QUIRK_NOGET },
        { USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_PIXART_IMAGING_INC_OPTICAL_TOUCH_SCREEN, HID_QUIRK_NOGET },
        { USB_VENDOR_ID_SUN, USB_DEVICE_ID_RARITAN_KVM_DONGLE, HID_QUIRK_NOGET },