HID: add driver for the Logitech Flight System G940

Implements a new USB-HID for Force Feedback based on the normal
Logitech Force Feedback code and FF-Memless.

Currently only supports the FF_CONSTANT effect although the joystick
appears to support additional non-standard ones.

Signed-off-by: Gary Stein <LordCnidarian@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

1 files changed, 6 insertions, 1 deletions

diff --git a/drivers/hid/hid-lg.c b/drivers/hid/hid-lg.c
index 9fcd3d017ab3..3677c9037a11 100644
--- a/drivers/hid/hid-lg.c
+++ b/drivers/hid/hid-lg.c
@@ -34,6 +34,7 @@
 #define LG_FF                   0x200
 #define LG_FF2                  0x400
 #define LG_RDESC_REL_ABS        0x800
+#define LG_FF3                  0x1000
 
 /*
  * Certain Logitech keyboards send in report #3 keys which are far
@@ -266,7 +267,7 @@ static int lg_probe(struct hid_device *hdev, const struct hid_device_id *id)
                 goto err_free;
         }
 
-        if (quirks & (LG_FF | LG_FF2))
+        if (quirks & (LG_FF | LG_FF2 | LG_FF3))
                 connect_mask &= ~HID_CONNECT_FF;
 
         ret = hid_hw_start(hdev, connect_mask);
@@ -279,6 +280,8 @@ static int lg_probe(struct hid_device *hdev, const struct hid_device_id *id)
                 lgff_init(hdev);
         if (quirks & LG_FF2)
                 lg2ff_init(hdev);
+        if (quirks & LG_FF3)
+                lg3ff_init(hdev);
 
         return 0;
 err_free:
@@ -331,6 +334,8 @@ static const struct hid_device_id lg_devices[] = {
                 .driver_data = LG_FF },
         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2),
                 .driver_data = LG_FF2 },
+        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FLIGHT_SYSTEM_G940),
+                .driver_data = LG_FF3 },
         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACENAVIGATOR),
                 .driver_data = LG_RDESC_REL_ABS },
         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACETRAVELLER),