3 files changed, 451 insertions, 2 deletions

diff --git a/drivers/input/joystick/Kconfig b/drivers/input/joystick/Kconfig
index 271263443c37..82f563e24fdb 100644
--- a/drivers/input/joystick/Kconfig
+++ b/drivers/input/joystick/Kconfig
@@ -2,7 +2,7 @@
 # Joystick driver configuration
 #
 menuconfig INPUT_JOYSTICK
-        bool "Joysticks"
+        bool "Joysticks/Gamepads"
         help
           If you have a joystick, 6dof controller, gamepad, steering wheel,
           weapon control system or something like that you can say Y here
@@ -196,7 +196,7 @@ config JOYSTICK_TWIDJOY
 config JOYSTICK_DB9
         tristate "Multisystem, Sega Genesis, Saturn joysticks and gamepads"
         depends on PARPORT
-        ---help---
+        help
           Say Y here if you have a Sega Master System gamepad, Sega Genesis
           gamepad, Sega Saturn gamepad, or a Multisystem -- Atari, Amiga,
           Commodore, Amstrad CPC joystick connected to your parallel port.
@@ -253,4 +253,18 @@ config JOYSTICK_JOYDUMP
           To compile this driver as a module, choose M here: the
           module will be called joydump.
 
+config JOYSTICK_XPAD
+        tristate "X-Box gamepad support"
+        select USB
+        help
+          Say Y here if you want to use the X-Box pad with your computer.
+          Make sure to say Y to "Joystick support" (CONFIG_INPUT_JOYDEV)
+          and/or "Event interface support" (CONFIG_INPUT_EVDEV) as well.
+
+          For information about how to connect the X-Box pad to USB, see
+          <file:Documentation/input/xpad.txt>.
+
+          To compile this driver as a module, choose M here: the
+          module will be called xpad.
+
 endif
diff --git a/drivers/input/joystick/Makefile b/drivers/input/joystick/Makefile
index 5231f6ff75b8..e855abb0cc51 100644
--- a/drivers/input/joystick/Makefile
+++ b/drivers/input/joystick/Makefile
@@ -26,5 +26,6 @@ obj-$(CONFIG_JOYSTICK_TMDC)		+= tmdc.o
 obj-$(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_IFORCE)           += iforce/
diff --git a/drivers/input/joystick/xpad.c b/drivers/input/joystick/xpad.c
new file mode 100644
index 000000000000..735723912950
--- /dev/null
+++ b/drivers/input/joystick/xpad.c
@@ -0,0 +1,434 @@
+/*
+ * X-Box gamepad - v0.0.6
+ *
+ * Copyright (c) 2002 Marko Friedemann <mfr@bmx-chemnitz.de>
+ *               2004 Oliver Schwartz <Oliver.Schwartz@gmx.de>,
+ *                    Steven Toth <steve@toth.demon.co.uk>,
+ *                    Franz Lehner <franz@caos.at>,
+ *                    Ivan Hawkes <blackhawk@ivanhawkes.com>
+ *               2005 Dominic Cerquetti <binary1230@yahoo.com>
+ *               2006 Adam Buchbinder <adam.buchbinder@gmail.com>
+ *
+ * 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
+ *
+ *
+ * This driver is based on:
+ *  - information from     http://euc.jp/periphs/xbox-controller.ja.html
+ *  - the iForce driver    drivers/char/joystick/iforce.c
+ *  - the skeleton-driver  drivers/usb/usb-skeleton.c
+ *
+ * Thanks to:
+ *  - ITO Takayuki for providing essential xpad information on his website
+ *  - Vojtech Pavlik     - iforce driver / input subsystem
+ *  - Greg Kroah-Hartman - usb-skeleton driver
+ *  - XBOX Linux project - extra USB id's
+ *
+ * TODO:
+ *  - fine tune axes (especially trigger axes)
+ *  - fix "analog" buttons (reported as digital now)
+ *  - get rumble working
+ *  - need USB IDs for other dance pads
+ *
+ * History:
+ *
+ * 2002-06-27 - 0.0.1 : first version, just said "XBOX HID controller"
+ *
+ * 2002-07-02 - 0.0.2 : basic working version
+ *  - all axes and 9 of the 10 buttons work (german InterAct device)
+ *  - the black button does not work
+ *
+ * 2002-07-14 - 0.0.3 : rework by Vojtech Pavlik
+ *  - indentation fixes
+ *  - usb + input init sequence fixes
+ *
+ * 2002-07-16 - 0.0.4 : minor changes, merge with Vojtech's v0.0.3
+ *  - verified the lack of HID and report descriptors
+ *  - verified that ALL buttons WORK
+ *  - fixed d-pad to axes mapping
+ *
+ * 2002-07-17 - 0.0.5 : simplified d-pad handling
+ *
+ * 2004-10-02 - 0.0.6 : DDR pad support
+ *  - borrowed from the XBOX linux kernel
+ *  - USB id's for commonly used dance pads are present
+ *  - 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
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/stat.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/smp_lock.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"
+
+#define XPAD_PKT_LEN 32
+
+/* xbox d-pads should map to buttons, as is required for DDR pads
+   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
+
+static int dpad_to_buttons;
+module_param(dpad_to_buttons, bool, S_IRUGO);
+MODULE_PARM_DESC(dpad_to_buttons, "Map D-PAD to buttons rather than axes for unknown pads");
+
+static const struct xpad_device {
+        u16 idVendor;
+        u16 idProduct;
+        char *name;
+        u8 dpad_mapping;
+} xpad_device[] = {
+        { 0x045e, 0x0202, "Microsoft X-Box pad v1 (US)", MAP_DPAD_TO_AXES },
+        { 0x045e, 0x0289, "Microsoft X-Box pad v2 (US)", MAP_DPAD_TO_AXES },
+        { 0x045e, 0x0285, "Microsoft X-Box pad (Japan)", MAP_DPAD_TO_AXES },
+        { 0x045e, 0x0287, "Microsoft Xbox Controller S", MAP_DPAD_TO_AXES },
+        { 0x0c12, 0x8809, "RedOctane Xbox Dance Pad", MAP_DPAD_TO_BUTTONS },
+        { 0x044f, 0x0f07, "Thrustmaster, Inc. Controller", MAP_DPAD_TO_AXES },
+        { 0x046d, 0xca84, "Logitech Xbox Cordless Controller", MAP_DPAD_TO_AXES },
+        { 0x046d, 0xca88, "Logitech Compact Controller for Xbox", MAP_DPAD_TO_AXES },
+        { 0x05fd, 0x1007, "Mad Catz Controller (unverified)", MAP_DPAD_TO_AXES },
+        { 0x05fd, 0x107a, "InterAct 'PowerPad Pro' X-Box pad (Germany)", MAP_DPAD_TO_AXES },
+        { 0x0738, 0x4516, "Mad Catz Control Pad", MAP_DPAD_TO_AXES },
+        { 0x0738, 0x4522, "Mad Catz LumiCON", MAP_DPAD_TO_AXES },
+        { 0x0738, 0x4526, "Mad Catz Control Pad Pro", MAP_DPAD_TO_AXES },
+        { 0x0738, 0x4536, "Mad Catz MicroCON", MAP_DPAD_TO_AXES },
+        { 0x0738, 0x4540, "Mad Catz Beat Pad", MAP_DPAD_TO_BUTTONS },
+        { 0x0738, 0x4556, "Mad Catz Lynx Wireless Controller", MAP_DPAD_TO_AXES },
+        { 0x0738, 0x6040, "Mad Catz Beat Pad Pro", MAP_DPAD_TO_BUTTONS },
+        { 0x0c12, 0x8802, "Zeroplus Xbox Controller", MAP_DPAD_TO_AXES },
+        { 0x0c12, 0x8810, "Zeroplus Xbox Controller", MAP_DPAD_TO_AXES },
+        { 0x0c12, 0x9902, "HAMA VibraX - *FAULTY HARDWARE*", MAP_DPAD_TO_AXES },
+        { 0x0e4c, 0x1097, "Radica Gamester Controller", MAP_DPAD_TO_AXES },
+        { 0x0e4c, 0x2390, "Radica Games Jtech Controller", MAP_DPAD_TO_AXES},
+        { 0x0e6f, 0x0003, "Logic3 Freebird wireless Controller", MAP_DPAD_TO_AXES },
+        { 0x0e6f, 0x0005, "Eclipse wireless Controller", MAP_DPAD_TO_AXES },
+        { 0x0e6f, 0x0006, "Edge wireless Controller", MAP_DPAD_TO_AXES },
+        { 0x0e8f, 0x0201, "SmartJoy Frag Xpad/PS2 adaptor", MAP_DPAD_TO_AXES },
+        { 0x0f30, 0x0202, "Joytech Advanced Controller", MAP_DPAD_TO_AXES },
+        { 0x0f30, 0x8888, "BigBen XBMiniPad Controller", MAP_DPAD_TO_AXES },
+        { 0x102c, 0xff0c, "Joytech Wireless Advanced Controller", MAP_DPAD_TO_AXES },
+        { 0x12ab, 0x8809, "Xbox DDR dancepad", MAP_DPAD_TO_BUTTONS },
+        { 0x1430, 0x8888, "TX6500+ Dance Pad (first generation)", MAP_DPAD_TO_BUTTONS },
+        { 0xffff, 0xffff, "Chinese-made Xbox Controller", MAP_DPAD_TO_AXES },
+        { 0x0000, 0x0000, "Generic X-Box pad", MAP_DPAD_UNKNOWN }
+};
+
+static const signed short xpad_btn[] = {
+        BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z,       /* "analog" buttons */
+        BTN_START, BTN_BACK, BTN_THUMBL, BTN_THUMBR,    /* start/back/sticks */
+        -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 */
+        BTN_0, BTN_1,                   /* d-pad up, down (XXX names??) */
+        -1                              /* terminating entry */
+};
+
+static const signed short xpad_abs[] = {
+        ABS_X, ABS_Y,           /* left stick */
+        ABS_RX, ABS_RY,         /* right stick */
+        ABS_Z, ABS_RZ,          /* triggers left/right */
+        -1                      /* terminating entry */
+};
+
+/* only used if MAP_DPAD_TO_AXES */
+static const signed short xpad_abs_pad[] = {
+        ABS_HAT0X, ABS_HAT0Y,   /* d-pad axes */
+        -1                      /* terminating entry */
+};
+
+static struct usb_device_id xpad_table [] = {
+        { USB_INTERFACE_INFO('X', 'B', 0) },    /* X-Box USB-IF not approved class */
+        { }
+};
+
+MODULE_DEVICE_TABLE (usb, xpad_table);
+
+struct usb_xpad {
+        struct input_dev *dev;          /* input device interface */
+        struct usb_device *udev;        /* usb device */
+
+        struct urb *irq_in;             /* urb for interrupt in report */
+        unsigned char *idata;           /* input data */
+        dma_addr_t idata_dma;
+
+        char phys[65];                  /* physical device path */
+
+        int dpad_mapping;               /* map d-pad to buttons or to axes */
+};
+
+/*
+ *      xpad_process_packet
+ *
+ *      Completes a request by converting the data into events for the
+ *      input subsystem.
+ *
+ *      The used report descriptor was taken from ITO Takayukis website:
+ *       http://euc.jp/periphs/xbox-controller.ja.html
+ */
+
+static void xpad_process_packet(struct usb_xpad *xpad, u16 cmd, unsigned char *data)
+{
+        struct input_dev *dev = xpad->dev;
+
+        /* left stick */
+        input_report_abs(dev, ABS_X, (__s16) (((__s16)data[13] << 8) | data[12]));
+        input_report_abs(dev, ABS_Y, (__s16) (((__s16)data[15] << 8) | data[14]));
+
+        /* right stick */
+        input_report_abs(dev, ABS_RX, (__s16) (((__s16)data[17] << 8) | data[16]));
+        input_report_abs(dev, ABS_RY, (__s16) (((__s16)data[19] << 8) | data[18]));
+
+        /* triggers left/right */
+        input_report_abs(dev, ABS_Z, data[10]);
+        input_report_abs(dev, ABS_RZ, data[11]);
+
+        /* digital pad */
+        if (xpad->dpad_mapping == MAP_DPAD_TO_AXES) {
+                input_report_abs(dev, ABS_HAT0X, !!(data[2] & 0x08) - !!(data[2] & 0x04));
+                input_report_abs(dev, ABS_HAT0Y, !!(data[2] & 0x02) - !!(data[2] & 0x01));
+        } else /* xpad->dpad_mapping == MAP_DPAD_TO_BUTTONS */ {
+                input_report_key(dev, BTN_LEFT,  data[2] & 0x04);
+                input_report_key(dev, BTN_RIGHT, data[2] & 0x08);
+                input_report_key(dev, BTN_0,     data[2] & 0x01); // up
+                input_report_key(dev, BTN_1,     data[2] & 0x02); // down
+        }
+
+        /* start/back buttons and stick press left/right */
+        input_report_key(dev, BTN_START,  data[2] & 0x10);
+        input_report_key(dev, BTN_BACK,   data[2] & 0x20);
+        input_report_key(dev, BTN_THUMBL, data[2] & 0x40);
+        input_report_key(dev, BTN_THUMBR, data[2] & 0x80);
+
+        /* "analog" buttons A, B, X, Y */
+        input_report_key(dev, BTN_A, data[4]);
+        input_report_key(dev, BTN_B, data[5]);
+        input_report_key(dev, BTN_X, data[6]);
+        input_report_key(dev, BTN_Y, data[7]);
+
+        /* "analog" buttons black, white */
+        input_report_key(dev, BTN_C, data[8]);
+        input_report_key(dev, BTN_Z, data[9]);
+
+        input_sync(dev);
+}
+
+static void xpad_irq_in(struct urb *urb)
+{
+        struct usb_xpad *xpad = urb->context;
+        int retval;
+
+        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);
+                return;
+        default:
+                dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status);
+                goto exit;
+        }
+
+        xpad_process_packet(xpad, 0, xpad->idata);
+
+exit:
+        retval = usb_submit_urb (urb, GFP_ATOMIC);
+        if (retval)
+                err ("%s - usb_submit_urb failed with result %d",
+                     __FUNCTION__, retval);
+}
+
+static int xpad_open (struct input_dev *dev)
+{
+        struct usb_xpad *xpad = input_get_drvdata(dev);
+
+        xpad->irq_in->dev = xpad->udev;
+        if (usb_submit_urb(xpad->irq_in, GFP_KERNEL))
+                return -EIO;
+
+        return 0;
+}
+
+static void xpad_close (struct input_dev *dev)
+{
+        struct usb_xpad *xpad = input_get_drvdata(dev);
+
+        usb_kill_urb(xpad->irq_in);
+}
+
+static void xpad_set_up_abs(struct input_dev *input_dev, signed short abs)
+{
+        set_bit(abs, input_dev->absbit);
+
+        switch (abs) {
+        case ABS_X:
+        case ABS_Y:
+        case ABS_RX:
+        case ABS_RY:    /* the two sticks */
+                input_set_abs_params(input_dev, abs, -32768, 32767, 16, 128);
+                break;
+        case ABS_Z:
+        case ABS_RZ:    /* the triggers */
+                input_set_abs_params(input_dev, abs, 0, 255, 0, 0);
+                break;
+        case ABS_HAT0X:
+        case ABS_HAT0Y: /* the d-pad (only if MAP_DPAD_TO_AXES) */
+                input_set_abs_params(input_dev, abs, -1, 1, 0, 0);
+                break;
+        }
+}
+
+static int xpad_probe(struct usb_interface *intf, const struct usb_device_id *id)
+{
+        struct usb_device *udev = interface_to_usbdev (intf);
+        struct usb_xpad *xpad;
+        struct input_dev *input_dev;
+        struct usb_endpoint_descriptor *ep_irq_in;
+        int i;
+        int error = -ENOMEM;
+
+        for (i = 0; xpad_device[i].idVendor; i++) {
+                if ((le16_to_cpu(udev->descriptor.idVendor) == xpad_device[i].idVendor) &&
+                    (le16_to_cpu(udev->descriptor.idProduct) == xpad_device[i].idProduct))
+                        break;
+        }
+
+        xpad = kzalloc(sizeof(struct usb_xpad), GFP_KERNEL);
+        input_dev = input_allocate_device();
+        if (!xpad || !input_dev)
+                goto fail1;
+
+        xpad->idata = usb_buffer_alloc(udev, XPAD_PKT_LEN,
+                                       GFP_ATOMIC, &xpad->idata_dma);
+        if (!xpad->idata)
+                goto fail1;
+
+        xpad->irq_in = usb_alloc_urb(0, GFP_KERNEL);
+        if (!xpad->irq_in)
+                goto fail2;
+
+        xpad->udev = udev;
+        xpad->dpad_mapping = xpad_device[i].dpad_mapping;
+        if (xpad->dpad_mapping == MAP_DPAD_UNKNOWN)
+                xpad->dpad_mapping = dpad_to_buttons;
+        xpad->dev = input_dev;
+        usb_make_path(udev, xpad->phys, sizeof(xpad->phys));
+        strlcat(xpad->phys, "/input0", sizeof(xpad->phys));
+
+        input_dev->name = xpad_device[i].name;
+        input_dev->phys = xpad->phys;
+        usb_to_input_id(udev, &input_dev->id);
+        input_dev->dev.parent = &intf->dev;
+
+        input_set_drvdata(input_dev, xpad);
+
+        input_dev->open = xpad_open;
+        input_dev->close = xpad_close;
+
+        input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
+
+        /* set up buttons */
+        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);
+
+        /* set up axes */
+        for (i = 0; xpad_abs[i] >= 0; i++)
+                xpad_set_up_abs(input_dev, xpad_abs[i]);
+        if (xpad->dpad_mapping == MAP_DPAD_TO_AXES)
+                for (i = 0; xpad_abs_pad[i] >= 0; i++)
+                    xpad_set_up_abs(input_dev, xpad_abs_pad[i]);
+
+        ep_irq_in = &intf->cur_altsetting->endpoint[0].desc;
+        usb_fill_int_urb(xpad->irq_in, udev,
+                         usb_rcvintpipe(udev, ep_irq_in->bEndpointAddress),
+                         xpad->idata, XPAD_PKT_LEN, xpad_irq_in,
+                         xpad, ep_irq_in->bInterval);
+        xpad->irq_in->transfer_dma = xpad->idata_dma;
+        xpad->irq_in->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+
+        error = input_register_device(xpad->dev);
+        if (error)
+                goto fail3;
+
+        usb_set_intfdata(intf, xpad);
+        return 0;
+
+ fail3: usb_free_urb(xpad->irq_in);
+ fail2: usb_buffer_free(udev, XPAD_PKT_LEN, xpad->idata, xpad->idata_dma);
+ fail1: input_free_device(input_dev);
+        kfree(xpad);
+        return error;
+
+}
+
+static void xpad_disconnect(struct usb_interface *intf)
+{
+        struct usb_xpad *xpad = usb_get_intfdata (intf);
+
+        usb_set_intfdata(intf, NULL);
+        if (xpad) {
+                usb_kill_urb(xpad->irq_in);
+                input_unregister_device(xpad->dev);
+                usb_free_urb(xpad->irq_in);
+                usb_buffer_free(interface_to_usbdev(intf), XPAD_PKT_LEN,
+                                xpad->idata, xpad->idata_dma);
+                kfree(xpad);
+        }
+}
+
+static struct usb_driver xpad_driver = {
+        .name           = "xpad",
+        .probe          = xpad_probe,
+        .disconnect     = xpad_disconnect,
+        .id_table       = xpad_table,
+};
+
+static int __init usb_xpad_init(void)
+{
+        int result = usb_register(&xpad_driver);
+        if (result == 0)
+                info(DRIVER_DESC ":" DRIVER_VERSION);
+        return result;
+}
+
+static void __exit usb_xpad_exit(void)
+{
+        usb_deregister(&xpad_driver);
+}
+
+module_init(usb_xpad_init);
+module_exit(usb_xpad_exit);
+
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");