Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (40 commits)
  Input: wacom - add support for Cintiq 20WSX
  Input: ucb1400_ts - IRQ probe fix
  Input: at32psif - update MODULE_AUTHOR with new email
  Input: mac_hid - add lockdep annotation to emumousebtn
  Input: i8042 - fix incorrect usage of strncpy and strncat
  Input: bf54x-keys - add infrastructure for keypad wakeups
  Input: add MODULE_ALIAS() to hotpluggable platform modules
  Input: drivers/char/keyboard.c - use time_after
  Input: fix ordering in joystick Makefile
  Input: wm97xx-core - support use as a wakeup source
  Input: wm97xx-core - use IRQF_SAMPLE_RANDOM
  Input: wm97xx-core - only schedule interrupt handler if not already scheduled
  Input: add Zhen Hua driver
  Input: aiptek - add support for Genius G-PEN 560 tablet
  Input: wacom - implement suspend and autosuspend
  Input: xpad - set proper buffer length for outgoing requests
  Input: omap-keypad - fix build warning
  Input: gpio_keys - irq handling cleanup
  Input: add PS/2 serio driver for AVR32 devices
  Input: put ledstate in the keyboard notifier
  ...

4 files changed, 446 insertions, 25 deletions

diff --git a/drivers/input/joystick/Kconfig b/drivers/input/joystick/Kconfig
index 7c662ee594a3..be5c14a5a0a4 100644
--- a/drivers/input/joystick/Kconfig
+++ b/drivers/input/joystick/Kconfig
@@ -193,6 +193,18 @@ config JOYSTICK_TWIDJOY
           To compile this driver as a module, choose M here: the
           module will be called twidjoy.
 
+config JOYSTICK_ZHENHUA
+        tristate "5-byte Zhenhua RC transmitter"
+        select SERIO
+        help
+          Say Y here if you have a Zhen Hua PPM-4CH transmitter which is
+          supplied with a ready to fly micro electric indoor helicopters
+          such as EasyCopter, Lama, MiniCopter, DragonFly or Jabo and want
+          to use it via serial cable as a joystick.
+
+          To compile this driver as a module, choose M here: the
+          module will be called zhenhua.
+
 config JOYSTICK_DB9
         tristate "Multisystem, Sega Genesis, Saturn joysticks and gamepads"
         depends on PARPORT
diff --git a/drivers/input/joystick/Makefile b/drivers/input/joystick/Makefile
index e855abb0cc51..fdbf8c4c2876 100644
--- a/drivers/input/joystick/Makefile
+++ b/drivers/input/joystick/Makefile
@@ -15,6 +15,7 @@ obj-$(CONFIG_JOYSTICK_GF2K)		+= gf2k.o
 obj-$(CONFIG_JOYSTICK_GRIP)             += grip.o
 obj-$(CONFIG_JOYSTICK_GRIP_MP)          += grip_mp.o
 obj-$(CONFIG_JOYSTICK_GUILLEMOT)        += guillemot.o
+obj-$(CONFIG_JOYSTICK_IFORCE)           += iforce/
 obj-$(CONFIG_JOYSTICK_INTERACT)         += interact.o
 obj-$(CONFIG_JOYSTICK_JOYDUMP)          += joydump.o
 obj-$(CONFIG_JOYSTICK_MAGELLAN)         += magellan.o
@@ -27,5 +28,5 @@ obj-$(CONFIG_JOYSTICK_TURBOGRAFX)	+= turbografx.o
 obj-$(CONFIG_JOYSTICK_TWIDJOY)          += twidjoy.o
 obj-$(CONFIG_JOYSTICK_WARRIOR)          += warrior.o
 obj-$(CONFIG_JOYSTICK_XPAD)             += xpad.o
+obj-$(CONFIG_JOYSTICK_ZHENHUA)          += zhenhua.o
 
-obj-$(CONFIG_JOYSTICK_IFORCE)           += iforce/
diff --git a/drivers/input/joystick/xpad.c b/drivers/input/joystick/xpad.c
index 0380597249bb..52ddb04644ab 100644
--- a/drivers/input/joystick/xpad.c
+++ b/drivers/input/joystick/xpad.c
@@ -1,5 +1,5 @@
 /*
- * X-Box gamepad - v0.0.6
+ * X-Box gamepad driver
  *
  * Copyright (c) 2002 Marko Friedemann <mfr@bmx-chemnitz.de>
  *               2004 Oliver Schwartz <Oliver.Schwartz@gmx.de>,
@@ -68,6 +68,8 @@
  *  - dance pads will map D-PAD to buttons, not axes
  *  - pass the module paramater 'dpad_to_buttons' to force
  *    the D-PAD to map to buttons if your pad is not detected
+ *
+ * Later changes can be tracked in SCM.
  */
 
 #include <linux/kernel.h>
@@ -77,7 +79,6 @@
 #include <linux/module.h>
 #include <linux/usb/input.h>
 
-#define DRIVER_VERSION "v0.0.6"
 #define DRIVER_AUTHOR "Marko Friedemann <mfr@bmx-chemnitz.de>"
 #define DRIVER_DESC "X-Box pad driver"
 
@@ -87,10 +88,12 @@
    but we map them to axes when possible to simplify things */
 #define MAP_DPAD_TO_BUTTONS    0
 #define MAP_DPAD_TO_AXES       1
-#define MAP_DPAD_UNKNOWN       -1
+#define MAP_DPAD_UNKNOWN       2
 
 #define XTYPE_XBOX        0
 #define XTYPE_XBOX360     1
+#define XTYPE_XBOX360W    2
+#define XTYPE_UNKNOWN     3
 
 static int dpad_to_buttons;
 module_param(dpad_to_buttons, bool, S_IRUGO);
@@ -107,8 +110,10 @@ static const struct xpad_device {
         { 0x045e, 0x0289, "Microsoft X-Box pad v2 (US)", MAP_DPAD_TO_AXES, XTYPE_XBOX },
         { 0x045e, 0x0285, "Microsoft X-Box pad (Japan)", MAP_DPAD_TO_AXES, XTYPE_XBOX },
         { 0x045e, 0x0287, "Microsoft Xbox Controller S", MAP_DPAD_TO_AXES, XTYPE_XBOX },
+        { 0x045e, 0x0719, "Xbox 360 Wireless Receiver", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360W },
         { 0x0c12, 0x8809, "RedOctane Xbox Dance Pad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
         { 0x044f, 0x0f07, "Thrustmaster, Inc. Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX },
+        { 0x046d, 0xc242, "Logitech Chillstream Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX360 },
         { 0x046d, 0xca84, "Logitech Xbox Cordless Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX },
         { 0x046d, 0xca88, "Logitech Compact Controller for Xbox", MAP_DPAD_TO_AXES, XTYPE_XBOX },
         { 0x05fd, 0x1007, "Mad Catz Controller (unverified)", MAP_DPAD_TO_AXES, XTYPE_XBOX },
@@ -135,18 +140,26 @@ static const struct xpad_device {
         { 0x0f30, 0x8888, "BigBen XBMiniPad Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX },
         { 0x102c, 0xff0c, "Joytech Wireless Advanced Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX },
         { 0x12ab, 0x8809, "Xbox DDR dancepad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
+        { 0x1430, 0x4748, "RedOctane Guitar Hero X-plorer", MAP_DPAD_TO_AXES, XTYPE_XBOX360 },
         { 0x1430, 0x8888, "TX6500+ Dance Pad (first generation)", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
         { 0x045e, 0x028e, "Microsoft X-Box 360 pad", MAP_DPAD_TO_AXES, XTYPE_XBOX360 },
         { 0xffff, 0xffff, "Chinese-made Xbox Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX },
-        { 0x0000, 0x0000, "Generic X-Box pad", MAP_DPAD_UNKNOWN, XTYPE_XBOX }
+        { 0x0000, 0x0000, "Generic X-Box pad", MAP_DPAD_UNKNOWN, XTYPE_UNKNOWN }
 };
 
-static const signed short xpad_btn[] = {
-        BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z,       /* "analog" buttons */
+/* buttons shared with xbox and xbox360 */
+static const signed short xpad_common_btn[] = {
+        BTN_A, BTN_B, BTN_X, BTN_Y,                     /* "analog" buttons */
         BTN_START, BTN_BACK, BTN_THUMBL, BTN_THUMBR,    /* start/back/sticks */
         -1                                              /* terminating entry */
 };
 
+/* original xbox controllers only */
+static const signed short xpad_btn[] = {
+        BTN_C, BTN_Z,           /* "analog" buttons */
+        -1                      /* terminating entry */
+};
+
 /* only used if MAP_DPAD_TO_BUTTONS */
 static const signed short xpad_btn_pad[] = {
         BTN_LEFT, BTN_RIGHT,            /* d-pad left, right */
@@ -173,12 +186,27 @@ static const signed short xpad_abs_pad[] = {
         -1                      /* terminating entry */
 };
 
-/* Xbox 360 has a vendor-specific (sub)class, so we cannot match it with only
- * USB_INTERFACE_INFO, more to that this device has 4 InterfaceProtocols,
- * but we need only one of them. */
+/* Xbox 360 has a vendor-specific class, so we cannot match it with only
+ * USB_INTERFACE_INFO (also specifically refused by USB subsystem), so we
+ * match against vendor id as well. Wired Xbox 360 devices have protocol 1,
+ * wireless controllers have protocol 129. */
+#define XPAD_XBOX360_VENDOR_PROTOCOL(vend,pr) \
+        .match_flags = USB_DEVICE_ID_MATCH_VENDOR | USB_DEVICE_ID_MATCH_INT_INFO, \
+        .idVendor = (vend), \
+        .bInterfaceClass = USB_CLASS_VENDOR_SPEC, \
+        .bInterfaceSubClass = 93, \
+        .bInterfaceProtocol = (pr)
+#define XPAD_XBOX360_VENDOR(vend) \
+        { XPAD_XBOX360_VENDOR_PROTOCOL(vend,1) }, \
+        { XPAD_XBOX360_VENDOR_PROTOCOL(vend,129) }
+
 static struct usb_device_id xpad_table [] = {
         { USB_INTERFACE_INFO('X', 'B', 0) },    /* X-Box USB-IF not approved class */
-        { USB_DEVICE_INTERFACE_PROTOCOL(0x045e, 0x028e, 1) },   /* X-Box 360 controller */
+        XPAD_XBOX360_VENDOR(0x045e),            /* Microsoft X-Box 360 controllers */
+        XPAD_XBOX360_VENDOR(0x046d),            /* Logitech X-Box 360 style controllers */
+        XPAD_XBOX360_VENDOR(0x0738),            /* Mad Catz X-Box 360 controllers */
+        XPAD_XBOX360_VENDOR(0x0e6f),            /* 0x0e6f X-Box 360 controllers */
+        XPAD_XBOX360_VENDOR(0x1430),            /* RedOctane X-Box 360 controllers */
         { }
 };
 
@@ -188,10 +216,15 @@ struct usb_xpad {
         struct input_dev *dev;          /* input device interface */
         struct usb_device *udev;        /* usb device */
 
+        int pad_present;
+
         struct urb *irq_in;             /* urb for interrupt in report */
         unsigned char *idata;           /* input data */
         dma_addr_t idata_dma;
 
+        struct urb *bulk_out;
+        unsigned char *bdata;
+
 #if defined(CONFIG_JOYSTICK_XPAD_FF) || defined(CONFIG_JOYSTICK_XPAD_LEDS)
         struct urb *irq_out;            /* urb for interrupt out report */
         unsigned char *odata;           /* output data */
@@ -227,13 +260,13 @@ static void xpad_process_packet(struct usb_xpad *xpad, u16 cmd, unsigned char *d
         input_report_abs(dev, ABS_X,
                          (__s16) le16_to_cpup((__le16 *)(data + 12)));
         input_report_abs(dev, ABS_Y,
-                         (__s16) le16_to_cpup((__le16 *)(data + 14)));
+                         ~(__s16) le16_to_cpup((__le16 *)(data + 14)));
 
         /* right stick */
         input_report_abs(dev, ABS_RX,
                          (__s16) le16_to_cpup((__le16 *)(data + 16)));
         input_report_abs(dev, ABS_RY,
-                         (__s16) le16_to_cpup((__le16 *)(data + 18)));
+                         ~(__s16) le16_to_cpup((__le16 *)(data + 18)));
 
         /* triggers left/right */
         input_report_abs(dev, ABS_Z, data[10]);
@@ -321,13 +354,13 @@ static void xpad360_process_packet(struct usb_xpad *xpad,
         input_report_abs(dev, ABS_X,
                          (__s16) le16_to_cpup((__le16 *)(data + 6)));
         input_report_abs(dev, ABS_Y,
-                         (__s16) le16_to_cpup((__le16 *)(data + 8)));
+                         ~(__s16) le16_to_cpup((__le16 *)(data + 8)));
 
         /* right stick */
         input_report_abs(dev, ABS_RX,
                          (__s16) le16_to_cpup((__le16 *)(data + 10)));
         input_report_abs(dev, ABS_RY,
-                         (__s16) le16_to_cpup((__le16 *)(data + 12)));
+                         ~(__s16) le16_to_cpup((__le16 *)(data + 12)));
 
         /* triggers left/right */
         input_report_abs(dev, ABS_Z, data[4]);
@@ -336,6 +369,39 @@ static void xpad360_process_packet(struct usb_xpad *xpad,
         input_sync(dev);
 }
 
+/*
+ * xpad360w_process_packet
+ *
+ * Completes a request by converting the data into events for the
+ * input subsystem. It is version for xbox 360 wireless controller.
+ *
+ * Byte.Bit
+ * 00.1 - Status change: The controller or headset has connected/disconnected
+ *                       Bits 01.7 and 01.6 are valid
+ * 01.7 - Controller present
+ * 01.6 - Headset present
+ * 01.1 - Pad state (Bytes 4+) valid
+ *
+ */
+
+static void xpad360w_process_packet(struct usb_xpad *xpad, u16 cmd, unsigned char *data)
+{
+        /* Presence change */
+        if (data[0] & 0x08) {
+                if (data[1] & 0x80) {
+                        xpad->pad_present = 1;
+                        usb_submit_urb(xpad->bulk_out, GFP_ATOMIC);
+                } else
+                        xpad->pad_present = 0;
+        }
+
+        /* Valid pad data */
+        if (!(data[1] & 0x1))
+                return;
+
+        xpad360_process_packet(xpad, cmd, &data[4]);
+}
+
 static void xpad_irq_in(struct urb *urb)
 {
         struct usb_xpad *xpad = urb->context;
@@ -358,10 +424,16 @@ static void xpad_irq_in(struct urb *urb)
                 goto exit;
         }
 
-        if (xpad->xtype == XTYPE_XBOX360)
+        switch (xpad->xtype) {
+        case XTYPE_XBOX360:
                 xpad360_process_packet(xpad, 0, xpad->idata);
-        else
+                break;
+        case XTYPE_XBOX360W:
+                xpad360w_process_packet(xpad, 0, xpad->idata);
+                break;
+        default:
                 xpad_process_packet(xpad, 0, xpad->idata);
+        }
 
 exit:
         retval = usb_submit_urb (urb, GFP_ATOMIC);
@@ -399,6 +471,23 @@ exit:
                     __FUNCTION__, retval);
 }
 
+static void xpad_bulk_out(struct urb *urb)
+{
+        switch (urb->status) {
+        case 0:
+                /* success */
+                break;
+        case -ECONNRESET:
+        case -ENOENT:
+        case -ESHUTDOWN:
+                /* this urb is terminated, clean up */
+                dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status);
+                break;
+        default:
+                dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status);
+        }
+}
+
 static int xpad_init_output(struct usb_interface *intf, struct usb_xpad *xpad)
 {
         struct usb_endpoint_descriptor *ep_irq_out;
@@ -408,7 +497,7 @@ static int xpad_init_output(struct usb_interface *intf, struct usb_xpad *xpad)
                 return 0;
 
         xpad->odata = usb_buffer_alloc(xpad->udev, XPAD_PKT_LEN,
-                                       GFP_ATOMIC, &xpad->odata_dma );
+                                       GFP_KERNEL, &xpad->odata_dma);
         if (!xpad->odata)
                 goto fail1;
 
@@ -469,6 +558,7 @@ static int xpad_play_effect(struct input_dev *dev, void *data,
                 xpad->odata[5] = 0x00;
                 xpad->odata[6] = 0x00;
                 xpad->odata[7] = 0x00;
+                xpad->irq_out->transfer_buffer_length = 8;
                 usb_submit_urb(xpad->irq_out, GFP_KERNEL);
         }
 
@@ -477,6 +567,9 @@ static int xpad_play_effect(struct input_dev *dev, void *data,
 
 static int xpad_init_ff(struct usb_xpad *xpad)
 {
+        if (xpad->xtype != XTYPE_XBOX360)
+                return 0;
+
         input_set_capability(xpad->dev, EV_FF, FF_RUMBLE);
 
         return input_ff_create_memless(xpad->dev, NULL, xpad_play_effect);
@@ -502,6 +595,7 @@ static void xpad_send_led_command(struct usb_xpad *xpad, int command)
                 xpad->odata[0] = 0x01;
                 xpad->odata[1] = 0x03;
                 xpad->odata[2] = command;
+                xpad->irq_out->transfer_buffer_length = 3;
                 usb_submit_urb(xpad->irq_out, GFP_KERNEL);
                 mutex_unlock(&xpad->odata_mutex);
         }
@@ -574,6 +668,10 @@ static int xpad_open(struct input_dev *dev)
 {
         struct usb_xpad *xpad = input_get_drvdata(dev);
 
+        /* URB was submitted in probe */
+        if(xpad->xtype == XTYPE_XBOX360W)
+                return 0;
+
         xpad->irq_in->dev = xpad->udev;
         if (usb_submit_urb(xpad->irq_in, GFP_KERNEL))
                 return -EIO;
@@ -585,7 +683,8 @@ static void xpad_close(struct input_dev *dev)
 {
         struct usb_xpad *xpad = input_get_drvdata(dev);
 
-        usb_kill_urb(xpad->irq_in);
+        if(xpad->xtype != XTYPE_XBOX360W)
+                usb_kill_urb(xpad->irq_in);
         xpad_stop_output(xpad);
 }
 
@@ -632,7 +731,7 @@ static int xpad_probe(struct usb_interface *intf, const struct usb_device_id *id
                 goto fail1;
 
         xpad->idata = usb_buffer_alloc(udev, XPAD_PKT_LEN,
-                                       GFP_ATOMIC, &xpad->idata_dma);
+                                       GFP_KERNEL, &xpad->idata_dma);
         if (!xpad->idata)
                 goto fail1;
 
@@ -644,7 +743,16 @@ static int xpad_probe(struct usb_interface *intf, const struct usb_device_id *id
         xpad->dpad_mapping = xpad_device[i].dpad_mapping;
         xpad->xtype = xpad_device[i].xtype;
         if (xpad->dpad_mapping == MAP_DPAD_UNKNOWN)
-                xpad->dpad_mapping = dpad_to_buttons;
+                xpad->dpad_mapping = !dpad_to_buttons;
+        if (xpad->xtype == XTYPE_UNKNOWN) {
+                if (intf->cur_altsetting->desc.bInterfaceClass == USB_CLASS_VENDOR_SPEC) {
+                        if (intf->cur_altsetting->desc.bInterfaceProtocol == 129)
+                                xpad->xtype = XTYPE_XBOX360W;
+                        else
+                                xpad->xtype = XTYPE_XBOX360;
+                } else
+                        xpad->xtype = XTYPE_XBOX;
+        }
         xpad->dev = input_dev;
         usb_make_path(udev, xpad->phys, sizeof(xpad->phys));
         strlcat(xpad->phys, "/input0", sizeof(xpad->phys));
@@ -662,11 +770,14 @@ static int xpad_probe(struct usb_interface *intf, const struct usb_device_id *id
         input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
 
         /* set up buttons */
-        for (i = 0; xpad_btn[i] >= 0; i++)
-                set_bit(xpad_btn[i], input_dev->keybit);
-        if (xpad->xtype == XTYPE_XBOX360)
+        for (i = 0; xpad_common_btn[i] >= 0; i++)
+                set_bit(xpad_common_btn[i], input_dev->keybit);
+        if ((xpad->xtype == XTYPE_XBOX360) || (xpad->xtype == XTYPE_XBOX360W))
                 for (i = 0; xpad360_btn[i] >= 0; i++)
                         set_bit(xpad360_btn[i], input_dev->keybit);
+        else
+                for (i = 0; xpad_btn[i] >= 0; i++)
+                        set_bit(xpad_btn[i], input_dev->keybit);
         if (xpad->dpad_mapping == MAP_DPAD_TO_BUTTONS)
                 for (i = 0; xpad_btn_pad[i] >= 0; i++)
                         set_bit(xpad_btn_pad[i], input_dev->keybit);
@@ -703,8 +814,57 @@ static int xpad_probe(struct usb_interface *intf, const struct usb_device_id *id
                 goto fail4;
 
         usb_set_intfdata(intf, xpad);
+
+        /*
+         * Submit the int URB immediatly rather than waiting for open
+         * because we get status messages from the device whether
+         * or not any controllers are attached.  In fact, it's
+         * exactly the message that a controller has arrived that
+         * we're waiting for.
+         */
+        if (xpad->xtype == XTYPE_XBOX360W) {
+                xpad->irq_in->dev = xpad->udev;
+                error = usb_submit_urb(xpad->irq_in, GFP_KERNEL);
+                if (error)
+                        goto fail4;
+
+                /*
+                 * Setup the message to set the LEDs on the
+                 * controller when it shows up
+                 */
+                xpad->bulk_out = usb_alloc_urb(0, GFP_KERNEL);
+                if(!xpad->bulk_out)
+                        goto fail5;
+
+                xpad->bdata = kzalloc(XPAD_PKT_LEN, GFP_KERNEL);
+                if(!xpad->bdata)
+                        goto fail6;
+
+                xpad->bdata[2] = 0x08;
+                switch (intf->cur_altsetting->desc.bInterfaceNumber) {
+                case 0:
+                        xpad->bdata[3] = 0x42;
+                        break;
+                case 2:
+                        xpad->bdata[3] = 0x43;
+                        break;
+                case 4:
+                        xpad->bdata[3] = 0x44;
+                        break;
+                case 6:
+                        xpad->bdata[3] = 0x45;
+                }
+
+                ep_irq_in = &intf->cur_altsetting->endpoint[1].desc;
+                usb_fill_bulk_urb(xpad->bulk_out, udev,
+                                usb_sndbulkpipe(udev, ep_irq_in->bEndpointAddress),
+                                xpad->bdata, XPAD_PKT_LEN, xpad_bulk_out, xpad);
+        }
+
         return 0;
 
+ fail6: usb_free_urb(xpad->bulk_out);
+ fail5: usb_kill_urb(xpad->irq_in);
  fail4: usb_free_urb(xpad->irq_in);
  fail3: xpad_deinit_output(xpad);
  fail2: usb_buffer_free(udev, XPAD_PKT_LEN, xpad->idata, xpad->idata_dma);
@@ -723,6 +883,11 @@ static void xpad_disconnect(struct usb_interface *intf)
                 xpad_led_disconnect(xpad);
                 input_unregister_device(xpad->dev);
                 xpad_deinit_output(xpad);
+                if (xpad->xtype == XTYPE_XBOX360W) {
+                        usb_kill_urb(xpad->bulk_out);
+                        usb_free_urb(xpad->bulk_out);
+                        usb_kill_urb(xpad->irq_in);
+                }
                 usb_free_urb(xpad->irq_in);
                 usb_buffer_free(xpad->udev, XPAD_PKT_LEN,
                                 xpad->idata, xpad->idata_dma);
@@ -741,7 +906,7 @@ static int __init usb_xpad_init(void)
 {
         int result = usb_register(&xpad_driver);
         if (result == 0)
-                info(DRIVER_DESC ":" DRIVER_VERSION);
+                info(DRIVER_DESC);
         return result;
 }
 
diff --git a/drivers/input/joystick/zhenhua.c b/drivers/input/joystick/zhenhua.c
new file mode 100644
index 000000000000..b5853125c898
--- /dev/null
+++ b/drivers/input/joystick/zhenhua.c
@@ -0,0 +1,243 @@
+/*
+ *  derived from "twidjoy.c"
+ *
+ *  Copyright (c) 2008 Martin Kebert
+ *  Copyright (c) 2001 Arndt Schoenewald
+ *  Copyright (c) 2000-2001 Vojtech Pavlik
+ *  Copyright (c) 2000 Mark Fletcher
+ *
+ */
+
+/*
+ * Driver to use 4CH RC transmitter using Zhen Hua 5-byte protocol (Walkera Lama,
+ * EasyCopter etc.) as a joystick under Linux.
+ *
+ * RC transmitters using Zhen Hua 5-byte protocol are cheap four channels
+ * transmitters for control a RC planes or RC helicopters with possibility to
+ * connect on a serial port.
+ * Data coming from transmitter is in this order:
+ * 1. byte = synchronisation byte
+ * 2. byte = X axis
+ * 3. byte = Y axis
+ * 4. byte = RZ axis
+ * 5. byte = Z axis
+ * (and this is repeated)
+ *
+ * For questions or feedback regarding this driver module please contact:
+ * Martin Kebert <gkmarty@gmail.com> - but I am not a C-programmer nor kernel
+ * coder :-(
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/serio.h>
+#include <linux/init.h>
+
+#define DRIVER_DESC     "RC transmitter with 5-byte Zhen Hua protocol joystick driver"
+
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+/*
+ * Constants.
+ */
+
+#define ZHENHUA_MAX_LENGTH 5
+
+/*
+ * Zhen Hua data.
+ */
+
+struct zhenhua {
+        struct input_dev *dev;
+        int idx;
+        unsigned char data[ZHENHUA_MAX_LENGTH];
+        char phys[32];
+};
+
+
+/* bits in all incoming bytes needs to be "reversed" */
+static int zhenhua_bitreverse(int x)
+{
+        x = ((x & 0xaa) >> 1) | ((x & 0x55) << 1);
+        x = ((x & 0xcc) >> 2) | ((x & 0x33) << 2);
+        x = ((x & 0xf0) >> 4) | ((x & 0x0f) << 4);
+        return x;
+}
+
+/*
+ * zhenhua_process_packet() decodes packets the driver receives from the
+ * RC transmitter. It updates the data accordingly.
+ */
+
+static void zhenhua_process_packet(struct zhenhua *zhenhua)
+{
+        struct input_dev *dev = zhenhua->dev;
+        unsigned char *data = zhenhua->data;
+
+        input_report_abs(dev, ABS_Y, data[1]);
+        input_report_abs(dev, ABS_X, data[2]);
+        input_report_abs(dev, ABS_RZ, data[3]);
+        input_report_abs(dev, ABS_Z, data[4]);
+
+        input_sync(dev);
+}
+
+/*
+ * zhenhua_interrupt() is called by the low level driver when characters
+ * are ready for us. We then buffer them for further processing, or call the
+ * packet processing routine.
+ */
+
+static irqreturn_t zhenhua_interrupt(struct serio *serio, unsigned char data, unsigned int flags)
+{
+        struct zhenhua *zhenhua = serio_get_drvdata(serio);
+
+        /* All Zhen Hua packets are 5 bytes. The fact that the first byte
+         * is allways 0xf7 and all others are in range 0x32 - 0xc8 (50-200)
+         * can be used to check and regain sync. */
+
+        if (data == 0xef)
+                zhenhua->idx = 0;       /* this byte starts a new packet */
+        else if (zhenhua->idx == 0)
+                return IRQ_HANDLED;     /* wrong MSB -- ignore this byte */
+
+        if (zhenhua->idx < ZHENHUA_MAX_LENGTH)
+                zhenhua->data[zhenhua->idx++] = zhenhua_bitreverse(data);
+
+        if (zhenhua->idx == ZHENHUA_MAX_LENGTH) {
+                zhenhua_process_packet(zhenhua);
+                zhenhua->idx = 0;
+        }
+
+        return IRQ_HANDLED;
+}
+
+/*
+ * zhenhua_disconnect() is the opposite of zhenhua_connect()
+ */
+
+static void zhenhua_disconnect(struct serio *serio)
+{
+        struct zhenhua *zhenhua = serio_get_drvdata(serio);
+
+        serio_close(serio);
+        serio_set_drvdata(serio, NULL);
+        input_unregister_device(zhenhua->dev);
+        kfree(zhenhua);
+}
+
+/*
+ * zhenhua_connect() is the routine that is called when someone adds a
+ * new serio device. It looks for the Twiddler, and if found, registers
+ * it as an input device.
+ */
+
+static int zhenhua_connect(struct serio *serio, struct serio_driver *drv)
+{
+        struct zhenhua *zhenhua;
+        struct input_dev *input_dev;
+        int err = -ENOMEM;
+
+        zhenhua = kzalloc(sizeof(struct zhenhua), GFP_KERNEL);
+        input_dev = input_allocate_device();
+        if (!zhenhua || !input_dev)
+                goto fail1;
+
+        zhenhua->dev = input_dev;
+        snprintf(zhenhua->phys, sizeof(zhenhua->phys), "%s/input0", serio->phys);
+
+        input_dev->name = "Zhen Hua 5-byte device";
+        input_dev->phys = zhenhua->phys;
+        input_dev->id.bustype = BUS_RS232;
+        input_dev->id.vendor = SERIO_ZHENHUA;
+        input_dev->id.product = 0x0001;
+        input_dev->id.version = 0x0100;
+        input_dev->dev.parent = &serio->dev;
+
+        input_dev->evbit[0] = BIT(EV_ABS);
+        input_set_abs_params(input_dev, ABS_X, 50, 200, 0, 0);
+        input_set_abs_params(input_dev, ABS_Y, 50, 200, 0, 0);
+        input_set_abs_params(input_dev, ABS_Z, 50, 200, 0, 0);
+        input_set_abs_params(input_dev, ABS_RZ, 50, 200, 0, 0);
+
+        serio_set_drvdata(serio, zhenhua);
+
+        err = serio_open(serio, drv);
+        if (err)
+                goto fail2;
+
+        err = input_register_device(zhenhua->dev);
+        if (err)
+                goto fail3;
+
+        return 0;
+
+ fail3: serio_close(serio);
+ fail2: serio_set_drvdata(serio, NULL);
+ fail1: input_free_device(input_dev);
+        kfree(zhenhua);
+        return err;
+}
+
+/*
+ * The serio driver structure.
+ */
+
+static struct serio_device_id zhenhua_serio_ids[] = {
+        {
+                .type   = SERIO_RS232,
+                .proto  = SERIO_ZHENHUA,
+                .id     = SERIO_ANY,
+                .extra  = SERIO_ANY,
+        },
+        { 0 }
+};
+
+MODULE_DEVICE_TABLE(serio, zhenhua_serio_ids);
+
+static struct serio_driver zhenhua_drv = {
+        .driver         = {
+                .name   = "zhenhua",
+        },
+        .description    = DRIVER_DESC,
+        .id_table       = zhenhua_serio_ids,
+        .interrupt      = zhenhua_interrupt,
+        .connect        = zhenhua_connect,
+        .disconnect     = zhenhua_disconnect,
+};
+
+/*
+ * The functions for inserting/removing us as a module.
+ */
+
+static int __init zhenhua_init(void)
+{
+        return serio_register_driver(&zhenhua_drv);
+}
+
+static void __exit zhenhua_exit(void)
+{
+        serio_unregister_driver(&zhenhua_drv);
+}
+
+module_init(zhenhua_init);
+module_exit(zhenhua_exit);