PATCH [1/3] drivers/input/xpad.c: Improve Xbox 360 wireless support and add sysfs interface
From: Mike Murphy
Date: Sat Feb 28 2009 - 23:53:23 EST
Improved support for Xbox 360 wireless devices by enabling rumble and
LED control, improved general usability by adding input controls, and
added a sysfs interface for tuning driver behavior.
Signed-off-by: Mike Murphy <mamurph[at]cs.clemson.edu>
diff -uNr origdrv/drivers/input/joystick/xpad.c newdrv/drivers/input/joystick/xpad.c
--- origdrv/drivers/input/joystick/xpad.c 2009-02-14 22:39:20.000000000 -0500
+++ newdrv/drivers/input/joystick/xpad.c 2009-02-28 23:20:20.000000000 -0500
@@ -1,5 +1,8 @@
/*
- * X-Box gamepad driver
+ * Xbox gamepad driver with Xbox 360 wired/wireless support
+ *
+ * Last Modified: 28 February 2009
+ * Mike Murphy <mamurph@xxxxxxxxxxxxxx>
*
* Copyright (c) 2002 Marko Friedemann <mfr@xxxxxxxxxxxxxxx>
* 2004 Oliver Schwartz <Oliver.Schwartz@xxxxxx>,
@@ -9,6 +12,8 @@
* 2005 Dominic Cerquetti <binary1230@xxxxxxxxx>
* 2006 Adam Buchbinder <adam.buchbinder@xxxxxxxxx>
* 2007 Jan Kratochvil <honza@xxxxxxxx>
+ * 2009 Clemson University
+ * (contact: Mike Murphy <mamurph@xxxxxxxxxxxxxx>)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
@@ -24,224 +29,330 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
+ * Please see xbox.h for the ChangeLog.
+ */
+
+
+
+#include "xpad.h"
+
+
+/* The dead zone and stick limit both affect the behavior of the corresponding
+ * analog stick, since the output values reported for the stick inputs will
+ * be scaled onto [0,32767]. It is thus necessary to ensure that the dead zone
+ * is never larger than the stick limit. In fact, a minimal amount of stick
+ * travel space (1024) is maintained between the two values. In practice,
+ * however, the stick limit should always be much greater than the dead zone.
+ */
+
+static void set_dead_zone(unsigned int new_size, unsigned int *dz,
+ unsigned int stick_limit)
+{
+ if ((new_size + 1024) >= stick_limit)
+ new_size = (stick_limit > 1024) ? stick_limit - 1024 : 0;
+ *dz = new_size;
+}
+
+static void set_stick_limit(unsigned int new_size, unsigned int *sl,
+ unsigned int dead_zone)
+{
+ if (new_size < (dead_zone + 1024))
+ new_size = dead_zone + 1024;
+ if (new_size > 32767)
+ new_size = 32767;
+ *sl = new_size;
+}
+
+
+/****************************************************************************/
+/*
+ * SysFs interface functions
*
- * 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
- * - Xbox 360 information http://www.free60.org/wiki/Gamepad
- *
- * 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
- *
- * Later changes can be tracked in SCM.
- */
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/stat.h>
-#include <linux/module.h>
-#include <linux/usb/input.h>
-
-#define DRIVER_AUTHOR "Marko Friedemann <mfr@xxxxxxxxxxxxxxx>"
-#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 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);
-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;
- u8 xtype;
-} xpad_device[] = {
- { 0x045e, 0x0202, "Microsoft X-Box pad v1 (US)", MAP_DPAD_TO_AXES, XTYPE_XBOX },
- { 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 },
- { 0x05fd, 0x107a, "InterAct 'PowerPad Pro' X-Box pad (Germany)", MAP_DPAD_TO_AXES, XTYPE_XBOX },
- { 0x0738, 0x4516, "Mad Catz Control Pad", MAP_DPAD_TO_AXES, XTYPE_XBOX },
- { 0x0738, 0x4522, "Mad Catz LumiCON", MAP_DPAD_TO_AXES, XTYPE_XBOX },
- { 0x0738, 0x4526, "Mad Catz Control Pad Pro", MAP_DPAD_TO_AXES, XTYPE_XBOX },
- { 0x0738, 0x4536, "Mad Catz MicroCON", MAP_DPAD_TO_AXES, XTYPE_XBOX },
- { 0x0738, 0x4540, "Mad Catz Beat Pad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
- { 0x0738, 0x4556, "Mad Catz Lynx Wireless Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX },
- { 0x0738, 0x4716, "Mad Catz Wired Xbox 360 Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX360 },
- { 0x0738, 0x6040, "Mad Catz Beat Pad Pro", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
- { 0x0c12, 0x8802, "Zeroplus Xbox Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX },
- { 0x0c12, 0x880a, "Pelican Eclipse PL-2023", MAP_DPAD_TO_AXES, XTYPE_XBOX },
- { 0x0c12, 0x8810, "Zeroplus Xbox Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX },
- { 0x0c12, 0x9902, "HAMA VibraX - *FAULTY HARDWARE*", MAP_DPAD_TO_AXES, XTYPE_XBOX },
- { 0x0e4c, 0x1097, "Radica Gamester Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX },
- { 0x0e4c, 0x2390, "Radica Games Jtech Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX },
- { 0x0e6f, 0x0003, "Logic3 Freebird wireless Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX },
- { 0x0e6f, 0x0005, "Eclipse wireless Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX },
- { 0x0e6f, 0x0006, "Edge wireless Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX },
- { 0x0e6f, 0x0006, "Pelican 'TSZ' Wired Xbox 360 Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX360 },
- { 0x0e8f, 0x0201, "SmartJoy Frag Xpad/PS2 adaptor", MAP_DPAD_TO_AXES, XTYPE_XBOX },
- { 0x0f30, 0x0202, "Joytech Advanced Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX },
- { 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_UNKNOWN }
-};
-
-/* 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 */
- BTN_0, BTN_1, /* d-pad up, down (XXX names??) */
- -1 /* terminating entry */
-};
-
-static const signed short xpad360_btn[] = { /* buttons for x360 controller */
- BTN_TL, BTN_TR, /* Button LB/RB */
- BTN_MODE, /* The big X button */
- -1
-};
-
-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 */
-};
-
-/* 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 */
- 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 */
- { }
-};
-
-MODULE_DEVICE_TABLE (usb, xpad_table);
-
-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;
+ * We use common functions, where possible, to implement the show/store
+ * routines. This design saves on code and reduces the burden of adding to or
+ * changing the interface.
+ */
- 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 */
- dma_addr_t odata_dma;
- struct mutex odata_mutex;
-#endif
+static ssize_t xpad_show_uint(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct usb_xpad *xpad = to_xpad(dev);
+ unsigned int value;
+ if (attr == &dev_attr_left_dead_zone)
+ value = xpad->left_dead_zone;
+ else if (attr == &dev_attr_right_dead_zone)
+ value = xpad->right_dead_zone;
+ else if (attr == &dev_attr_left_stick_limit)
+ value = xpad->left_stick_limit;
+ else if (attr == &dev_attr_right_stick_limit)
+ value = xpad->right_stick_limit;
+ else
+ return -EIO;
+ return snprintf(buf, PAGE_SIZE, "%u\n", value);
+}
-#if defined(CONFIG_JOYSTICK_XPAD_LEDS)
- struct xpad_led *led;
-#endif
- char phys[64]; /* physical device path */
+static ssize_t xpad_store_uint(struct device *dev,
+ struct device_attribute *attr, const char *buf, size_t count)
+{
+ struct usb_xpad *xpad = to_xpad(dev);
+ unsigned int new_value;
+ if (sscanf(buf, "%u", &new_value) != 1)
+ return -EIO;
+
+ if (attr == &dev_attr_left_dead_zone)
+ set_dead_zone(new_value, &xpad->left_dead_zone,
+ xpad->left_stick_limit);
+ else if (attr == &dev_attr_right_dead_zone)
+ set_dead_zone(new_value, &xpad->right_dead_zone,
+ xpad->right_stick_limit);
+ else if (attr == &dev_attr_left_stick_limit)
+ set_stick_limit(new_value, &xpad->left_stick_limit,
+ xpad->left_dead_zone);
+ else if (attr == &dev_attr_right_stick_limit)
+ set_stick_limit(new_value, &xpad->right_stick_limit,
+ xpad->right_dead_zone);
+ else
+ return -EIO;
+ return strnlen(buf, PAGE_SIZE);
+}
+
+
+static ssize_t xpad_store_bool(struct device *dev,
+ struct device_attribute *attr, const char *buf, size_t count)
+{
+ struct usb_xpad *xpad = to_xpad(dev);
+ int newvalue;
+ if (sscanf(buf, "%d", &newvalue) != 1)
+ return -EIO;
+
+ if (attr == &dev_attr_rumble_enable)
+ xpad->rumble_enable = (newvalue) ? 1 : 0;
+ else if (attr == &dev_attr_left_trigger_full_axis)
+ xpad->left_trigger_full_axis = (newvalue) ? 1 : 0;
+ else if (attr == &dev_attr_right_trigger_full_axis)
+ xpad->right_trigger_full_axis = (newvalue) ? 1 : 0;
+ return strnlen(buf, PAGE_SIZE);
+}
+
+
+/* read-only attributes share a common store function that returns an error */
+static ssize_t xpad_store_ro(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ return -EIO;
+}
+
+
+static ssize_t xpad_show_int(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct usb_xpad *xpad = to_xpad(dev);
+ int value;
+ if (attr == &dev_attr_rumble_enable)
+ value = xpad->rumble_enable;
+ else if (attr == &dev_attr_controller_number)
+ value = xpad->controller_number;
+ else if (attr == &dev_attr_controller_present)
+ value = xpad->controller_present;
+ else if (attr == &dev_attr_controller_type)
+ value = xpad->controller_type;
+ else if (attr == &dev_attr_left_trigger_full_axis)
+ value = xpad->left_trigger_full_axis;
+ else if (attr == &dev_attr_right_trigger_full_axis)
+ value = xpad->right_trigger_full_axis;
+ else
+ return -EIO;
+ return snprintf(buf, PAGE_SIZE, "%d\n", value);
+}
+
+
+static ssize_t xpad_show_id(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct usb_xpad *xpad = to_xpad(dev);
+ return snprintf(buf, PAGE_SIZE, "%s\n", xpad->controller_unique_id);
+}
+
+
+/* end of sysfs interface */
+/*****************************************************************************/
+
+/* Input section */
+
+/* xpad_init_controller
+ *
+ * Performs controller setup based on controller type.
+ *
+ * NOTE: xpad->controller_data->controller_type needs to be set BEFORE
+ * calling this function!
+ */
+
+static void xpad_init_controller(struct usb_xpad *xpad)
+{
+ set_stick_limit(XSTICK_LIMIT_DEFAULT, &xpad->left_stick_limit,
+ xpad->left_dead_zone);
+ set_stick_limit(XSTICK_LIMIT_DEFAULT, &xpad->right_stick_limit,
+ xpad->right_dead_zone);
+ set_dead_zone(XDEAD_ZONE_DEFAULT, &xpad->left_dead_zone,
+ xpad->left_stick_limit);
+ set_dead_zone(XDEAD_ZONE_DEFAULT, &xpad->right_dead_zone,
+ xpad->right_stick_limit);
+ xpad->left_trigger_full_axis = XFULL_TRIGGER_AXIS_DEFAULT;
+ xpad->right_trigger_full_axis = XFULL_TRIGGER_AXIS_DEFAULT;
+
+ if (xpad->controller_type == XCONTROLLER_TYPE_GUITAR)
+ xpad->rumble_enable = 0;
+ else if (xpad->controller_type == XCONTROLLER_TYPE_DANCE_PAD)
+ xpad->rumble_enable = 0;
+ else
+ xpad->rumble_enable = 1;
+}
+
+
+/*
+ * xpad_work_controller
+ *
+ * Submits command to set pad number on LED display of wireless 360
+ * controllers, as well as online/offline event. The shared workqueue
+ * is used for this purpose, so that the interrupt handler is kept short.
+ */
+
+static void xpad_work_controller(struct work_struct *w)
+{
+ struct usb_xpad *xpad = container_of(w, struct usb_xpad, work);
+ if (xpad->controller_present) {
+ xpad_send_led_command(xpad, xpad->controller_number + 1);
+ kobject_uevent(&xpad->dev->dev.kobj, KOBJ_ONLINE);
+ } else {
+ kobject_uevent(&xpad->dev->dev.kobj, KOBJ_OFFLINE);
+ }
+}
+
+
+/*
+ * xpad_process_sticks
+ *
+ * Handles stick input, accounting for dead zones and square axes. Based
+ * on the original handlers for the Xbox and Xbox 360 in
+ * xpad_process_packet and xpad360_process_packet, but unified to avoid
+ * duplication.
+ *
+ * Whenever a dead zone is used, each axis is scaled so that moving the
+ * stick slightly out of the dead zone range results in a low axis
+ * value in jstest(1), while moving the stick to the maximum position
+ * along any axis still results in 32767.
+ *
+ * In order to provide the ability to map inputs to a square axis (used
+ * by older games), the left_stick_limit and right_stick_limit can be
+ * set. These limits specify at what point in the raw input coordinates
+ * an axis is reported to be at maximum value (32767 or -32767).
+ *
+ * Both the dead zone and stick limit algorithms are implemented
+ * together as a coordinate transformation from "effective coordinates"
+ * onto the output coordinates (which have absolute values from 0 to
+ * 32767 and are positive or negative based on direction). Effective
+ * coordinates are defined as those input values that are greater than
+ * the dead zone but less than the stick limit on the axis in question.
+ *
+ * DANGER: All denominator values in division operations MUST be checked
+ * for non-zero condition. Dividing by zero inside the kernel can cause
+ * a system deadlock.
+ */
+
+static void xpad_process_sticks(struct usb_xpad *xpad, unsigned char *data)
+{
+ struct input_dev *dev = xpad->dev;
+ int coords[4]; /* x, y, rx, ry */
+ int x_offset, y_offset, rx_offset, ry_offset;
+ int c;
+ int range;
+ int abs_magnitude, adjusted_magnitude, difference, scale_fraction;
+ int dead_zone[2], stick_limit[2];
+
+ dead_zone[0] = xpad->left_dead_zone;
+ dead_zone[1] = xpad->right_dead_zone;
+ stick_limit[0] = xpad->left_stick_limit;
+ stick_limit[1] = xpad->right_stick_limit;
+
+ if (xpad->xtype == XTYPE_XBOX) {
+ x_offset = 12;
+ y_offset = 14;
+ rx_offset = 16;
+ ry_offset = 18;
+ } else {
+ x_offset = 6;
+ y_offset = 8;
+ rx_offset = 10;
+ ry_offset = 12;
+ }
+
+ coords[0] = (__s16) le16_to_cpup((__le16 *)(data + x_offset));
+ coords[1] = ~(__s16) le16_to_cpup((__le16 *)(data + y_offset));
+ coords[2] = (__s16) le16_to_cpup((__le16 *)(data + rx_offset));
+ coords[3] = ~(__s16) le16_to_cpup((__le16 *)(data + ry_offset));
+
+ /* Adjustment for dead zone and square axis */
+ for (c = 0; c < 4; c++) {
+ abs_magnitude = (int) coords[c];
+ if (abs_magnitude < 0)
+ abs_magnitude = -abs_magnitude;
+ adjusted_magnitude = abs_magnitude;
+
+ range = (stick_limit[c/2] - dead_zone[c/2]);
+
+ if (abs_magnitude >= stick_limit[c/2]) {
+ adjusted_magnitude = 32767;
+ } else if (abs_magnitude <= dead_zone[c/2]) {
+ adjusted_magnitude = 0;
+ } else if (range > 0) {
+ difference = 32767 - range;
+ if (difference) {
+ /* DIVISION: difference non-zero */
+ scale_fraction = range / difference;
+ adjusted_magnitude =
+ abs_magnitude - dead_zone[c/2];
+
+ /* Approximate floating-point division with a
+ * "catch-up" scaling algorithm that adds back
+ * to the adjusted_magnitude based on distance
+ * from the origin (0 in adjusted coordinates).
+ * If the range / difference is at least 1,
+ * then 1 needs to be added to the adjusted
+ * magnitude for every scale_fraction units
+ * from the origin. If the range / difference
+ * is less than 1 (0 in integer division),
+ * then divide the difference by the range to
+ * obtain the number of units to add per unit
+ * from the adjusted origin.
+ */
+ if (scale_fraction) {
+ /* DIVISION: scale_fraction non-zero */
+ adjusted_magnitude +=
+ adjusted_magnitude
+ / scale_fraction;
+ } else {
+ /* DIVISION: range non-zero */
+ scale_fraction = difference / range;
+ adjusted_magnitude +=
+ adjusted_magnitude
+ * scale_fraction;
+ }
+ if (adjusted_magnitude > 32767)
+ adjusted_magnitude = 32767;
+ }
+ }
+ coords[c] = (coords[c] < 0) ?
+ -adjusted_magnitude : adjusted_magnitude;
+ }
+
+ input_report_abs(dev, ABS_X, (__s16) coords[0]);
+ input_report_abs(dev, ABS_Y, (__s16) coords[1]);
+ input_report_abs(dev, ABS_RX, (__s16) coords[2]);
+ input_report_abs(dev, ABS_RY, (__s16) coords[3]);
+}
- int dpad_mapping; /* map d-pad to buttons or to axes */
- int xtype; /* type of xbox device */
-};
/*
* xpad_process_packet
@@ -253,21 +364,13 @@
* http://euc.jp/periphs/xbox-controller.ja.html
*/
-static void xpad_process_packet(struct usb_xpad *xpad, u16 cmd, unsigned char *data)
+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) le16_to_cpup((__le16 *)(data + 12)));
- input_report_abs(dev, ABS_Y,
- ~(__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)));
+ /* left and right sticks */
+ xpad_process_sticks(xpad, data);
/* triggers left/right */
input_report_abs(dev, ABS_Z, data[10]);
@@ -305,6 +408,7 @@
input_sync(dev);
}
+
/*
* xpad360_process_packet
*
@@ -316,9 +420,10 @@
*/
static void xpad360_process_packet(struct usb_xpad *xpad,
- u16 cmd, unsigned char *data)
+ u16 cmd, unsigned char *data)
{
struct input_dev *dev = xpad->dev;
+ int trigger;
/* digital pad */
if (xpad->dpad_mapping == MAP_DPAD_TO_AXES) {
@@ -351,25 +456,54 @@
input_report_key(dev, BTN_TR, data[3] & 0x02);
input_report_key(dev, BTN_MODE, data[3] & 0x04);
- /* left stick */
- 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)));
-
- /* 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)));
+ /* left and right sticks */
+ xpad_process_sticks(xpad, data);
- /* triggers left/right */
- input_report_abs(dev, ABS_Z, data[4]);
- input_report_abs(dev, ABS_RZ, data[5]);
+ /* triggers left/right: when full_axis is not enabled, report the
+ * absolute data value (0-255), which will be mapped onto [0,32767].
+ * If full axis is enabled, map the data value onto [-255:255], so
+ * that the input subsystem maps it onto [-32767:32767]. */
+ trigger = data[4];
+ if (xpad->left_trigger_full_axis)
+ trigger = (2 * trigger) - 255;
+ input_report_abs(dev, ABS_Z, trigger);
+ trigger = data[5];
+ if (xpad->right_trigger_full_axis)
+ trigger = (2 * trigger) - 255;
+ input_report_abs(dev, ABS_RZ, trigger);
input_sync(dev);
}
+
+static void xpad360w_identify_controller(struct usb_xpad *xpad,
+ unsigned char *data)
+{
+ u32 id;
+ int i;
+
+ snprintf(xpad->controller_unique_id, 17,
+ "%02x%02x%02x%02x%02x%02x%02x%02x",
+ data[8], data[9], data[10], data[11], data[12], data[13],
+ data[14], data[15]);
+
+ /* Identify controller type */
+ id = (u32) *(data + 22);
+ xpad->controller_type = XCONTROLLER_TYPE_OTHER;
+ for (i = 0; w360_id[i].id_bytes; i++) {
+ if (id == w360_id[i].id_bytes) {
+ xpad->controller_type =
+ w360_id[i].controller_type;
+ break;
+ }
+ }
+
+ if (id == XCONTROLLER_TYPE_OTHER)
+ printk(KERN_INFO
+ "xpad: unknown wireless controller type: %08x\n", id);
+}
+
+
/*
* xpad360w_process_packet
*
@@ -379,30 +513,53 @@
* Byte.Bit
* 00.1 - Status change: The controller or headset has connected/disconnected
* Bits 01.7 and 01.6 are valid
+ * 01.f - Some kind of unique identifier message (see above)
* 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)
+static void xpad360w_process_packet(struct usb_xpad *xpad, u16 cmd,
+ unsigned char *data)
{
+ int padnum = 0;
+
/* Presence change */
if (data[0] & 0x08) {
+ padnum = xpad->controller_number;
if (data[1] & 0x80) {
- xpad->pad_present = 1;
- usb_submit_urb(xpad->bulk_out, GFP_ATOMIC);
- } else
- xpad->pad_present = 0;
+ /* ignore duplicates */
+ if (!xpad->controller_present) {
+ xpad->controller_present = 1;
+ schedule_work(&xpad->work);
+ }
+ } else {
+ xpad->controller_present = 0;
+ xpad->controller_unique_id[0] = '\0';
+ xpad->controller_type = XCONTROLLER_TYPE_NONE;
+ /* We do NOT flush the shared workqueue here, because
+ * this function is called from an interrupt handler.
+ * If the controller has disconnected from the receiver,
+ * the worst that will happen from the work task running
+ * is that a packet will be transmitted from the
+ * receiver to a non-listening controller
+ */
+ }
}
- /* Valid pad data */
- if (!(data[1] & 0x1))
- return;
-
- xpad360_process_packet(xpad, cmd, &data[4]);
+ /* Process packets according to type */
+ if (data[1] == 0x0f) {
+ if (!xpad->controller_unique_id[0]) {
+ xpad360w_identify_controller(xpad, data);
+ xpad_init_controller(xpad);
+ }
+ } else if (data[1] & 0x1) {
+ xpad360_process_packet(xpad, cmd, &data[4]);
+ }
}
+
static void xpad_irq_in(struct urb *urb)
{
struct usb_xpad *xpad = urb->context;
@@ -439,30 +596,22 @@
}
exit:
- retval = usb_submit_urb (urb, GFP_ATOMIC);
+ retval = usb_submit_urb(urb, GFP_ATOMIC);
if (retval)
- err ("%s - usb_submit_urb failed with result %d",
+ err("%s - usb_submit_urb failed with result %d",
__func__, 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", __func__, urb->status);
- break;
- default:
- dbg("%s - nonzero urb status received: %d", __func__, urb->status);
- }
-}
+
+/* end input section */
+
+/*****************************************************************************/
+/* IRQ output section: present in object code only if the force feedback or
+ * LED interface is enabled.
+ */
#if defined(CONFIG_JOYSTICK_XPAD_FF) || defined(CONFIG_JOYSTICK_XPAD_LEDS)
+
static void xpad_irq_out(struct urb *urb)
{
int retval, status;
@@ -470,20 +619,20 @@
status = urb->status;
switch (status) {
- case 0:
+ case 0:
/* success */
break;
- case -ECONNRESET:
- case -ENOENT:
- case -ESHUTDOWN:
- /* this urb is terminated, clean up */
- dbg("%s - urb shutting down with status: %d",
- __func__, status);
- return;
- default:
- dbg("%s - nonzero urb status received: %d",
- __func__, status);
- goto exit;
+ case -ECONNRESET:
+ case -ENOENT:
+ case -ESHUTDOWN:
+ /* this urb is terminated, clean up */
+ dbg("%s - urb shutting down with status: %d",
+ __func__, status);
+ return;
+ default:
+ dbg("%s - nonzero urb status received: %d",
+ __func__, status);
+ goto exit;
}
exit:
@@ -493,12 +642,13 @@
__func__, retval);
}
+
static int xpad_init_output(struct usb_interface *intf, struct usb_xpad *xpad)
{
struct usb_endpoint_descriptor *ep_irq_out;
int error = -ENOMEM;
- if (xpad->xtype != XTYPE_XBOX360)
+ if ((xpad->xtype != XTYPE_XBOX360) && (xpad->xtype != XTYPE_XBOX360W))
return 0;
xpad->odata = usb_buffer_alloc(xpad->udev, XPAD_PKT_LEN,
@@ -514,7 +664,8 @@
ep_irq_out = &intf->cur_altsetting->endpoint[1].desc;
usb_fill_int_urb(xpad->irq_out, xpad->udev,
- usb_sndintpipe(xpad->udev, ep_irq_out->bEndpointAddress),
+ usb_sndintpipe(xpad->udev,
+ ep_irq_out->bEndpointAddress),
xpad->odata, XPAD_PKT_LEN,
xpad_irq_out, xpad, ep_irq_out->bInterval);
xpad->irq_out->transfer_dma = xpad->odata_dma;
@@ -526,45 +677,82 @@
fail1: return error;
}
+
static void xpad_stop_output(struct usb_xpad *xpad)
{
- if (xpad->xtype == XTYPE_XBOX360)
+ if ((xpad->xtype == XTYPE_XBOX360) || (xpad->xtype == XTYPE_XBOX360W))
usb_kill_urb(xpad->irq_out);
}
+
static void xpad_deinit_output(struct usb_xpad *xpad)
{
- if (xpad->xtype == XTYPE_XBOX360) {
+ if ((xpad->xtype == XTYPE_XBOX360) || (xpad->xtype == XTYPE_XBOX360W)) {
usb_free_urb(xpad->irq_out);
usb_buffer_free(xpad->udev, XPAD_PKT_LEN,
xpad->odata, xpad->odata_dma);
}
}
+
#else
-static int xpad_init_output(struct usb_interface *intf, struct usb_xpad *xpad) { return 0; }
+/* Dummy implementations for xpad_probe and xpad_disconnect */
+static int xpad_init_output(struct usb_interface *intf, struct usb_xpad *xpad)
+ { return 0; }
static void xpad_deinit_output(struct usb_xpad *xpad) {}
static void xpad_stop_output(struct usb_xpad *xpad) {}
#endif
-#ifdef CONFIG_JOYSTICK_XPAD_FF
+/* end output section */
+
+/*****************************************************************************/
+
+/* Force feedback (rumble effect) section, depends on CONFIG_JOYSTICK_XPAD_FF */
+
+#if defined(CONFIG_JOYSTICK_XPAD_FF)
+
+/* Rumble support for wireless controllers follows protocol description
+ * from xboxdrv userspace driver:
+ * http://pingus.seul.org/~grumbel/xboxdrv/
+ */
static int xpad_play_effect(struct input_dev *dev, void *data,
struct ff_effect *effect)
{
struct usb_xpad *xpad = input_get_drvdata(dev);
+ if (!xpad->rumble_enable)
+ return 0;
+
if (effect->type == FF_RUMBLE) {
__u16 strong = effect->u.rumble.strong_magnitude;
__u16 weak = effect->u.rumble.weak_magnitude;
- xpad->odata[0] = 0x00;
- xpad->odata[1] = 0x08;
- xpad->odata[2] = 0x00;
- xpad->odata[3] = strong / 256;
- xpad->odata[4] = weak / 256;
- xpad->odata[5] = 0x00;
- xpad->odata[6] = 0x00;
- xpad->odata[7] = 0x00;
- xpad->irq_out->transfer_buffer_length = 8;
+ mutex_lock(&xpad->odata_mutex);
+ if (xpad->xtype == XTYPE_XBOX360W) {
+ xpad->odata[0] = 0x00;
+ xpad->odata[1] = 0x01;
+ xpad->odata[2] = 0x0f;
+ xpad->odata[3] = 0xc0;
+ xpad->odata[4] = 0x00;
+ xpad->odata[5] = strong / 256;
+ xpad->odata[6] = weak / 256;
+ xpad->odata[7] = 0x00;
+ xpad->odata[8] = 0x00;
+ xpad->odata[9] = 0x00;
+ xpad->odata[10] = 0x00;
+ xpad->odata[11] = 0x00;
+ xpad->irq_out->transfer_buffer_length = 12;
+ } else {
+ xpad->odata[0] = 0x00;
+ xpad->odata[1] = 0x08;
+ xpad->odata[2] = 0x00;
+ xpad->odata[3] = strong / 256;
+ xpad->odata[4] = weak / 256;
+ 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);
+ mutex_unlock(&xpad->odata_mutex);
}
return 0;
@@ -572,7 +760,7 @@
static int xpad_init_ff(struct usb_xpad *xpad)
{
- if (xpad->xtype != XTYPE_XBOX360)
+ if ((xpad->xtype != XTYPE_XBOX360) && (xpad->xtype != XTYPE_XBOX360W))
return 0;
input_set_capability(xpad->dev, EV_FF, FF_RUMBLE);
@@ -581,26 +769,49 @@
}
#else
+/* dummy implementation for xpad_probe */
static int xpad_init_ff(struct usb_xpad *xpad) { return 0; }
#endif
+
+/* end force feedback section */
+
+/*****************************************************************************/
+
+/* LED handling section: provides support for the ring of LEDs on the 360
+ * controllers. */
+
#if defined(CONFIG_JOYSTICK_XPAD_LEDS)
-#include <linux/leds.h>
-struct xpad_led {
- char name[16];
- struct led_classdev led_cdev;
- struct usb_xpad *xpad;
-};
+/* XBox 360 wireless controller follows protocol from xboxdrv userspace
+ * driver:
+ * http://pingus.seul.org/~grumbel/xboxdrv/
+ */
static void xpad_send_led_command(struct usb_xpad *xpad, int command)
{
if (command >= 0 && command < 14) {
mutex_lock(&xpad->odata_mutex);
- xpad->odata[0] = 0x01;
- xpad->odata[1] = 0x03;
- xpad->odata[2] = command;
- xpad->irq_out->transfer_buffer_length = 3;
+ if (xpad->xtype == XTYPE_XBOX360W) {
+ xpad->odata[0] = 0x00;
+ xpad->odata[1] = 0x00;
+ xpad->odata[2] = 0x08;
+ xpad->odata[3] = 0x40 + (command % 0x0e);
+ xpad->odata[4] = 0x00;
+ xpad->odata[5] = 0x00;
+ xpad->odata[6] = 0x00;
+ xpad->odata[7] = 0x00;
+ xpad->odata[8] = 0x00;
+ xpad->odata[9] = 0x00;
+ xpad->odata[10] = 0x00;
+ xpad->odata[11] = 0x00;
+ xpad->irq_out->transfer_buffer_length = 12;
+ } else {
+ 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);
}
@@ -615,6 +826,7 @@
xpad_send_led_command(xpad_led->xpad, value);
}
+
static int xpad_led_probe(struct usb_xpad *xpad)
{
static atomic_t led_seq = ATOMIC_INIT(0);
@@ -623,7 +835,7 @@
struct led_classdev *led_cdev;
int error;
- if (xpad->xtype != XTYPE_XBOX360)
+ if ((xpad->xtype != XTYPE_XBOX360) && (xpad->xtype != XTYPE_XBOX360W))
return 0;
xpad->led = led = kzalloc(sizeof(struct xpad_led), GFP_KERNEL);
@@ -664,17 +876,23 @@
}
}
#else
+/* dummies for xpad_probe and xpad_disconnect */
static int xpad_led_probe(struct usb_xpad *xpad) { return 0; }
static void xpad_led_disconnect(struct usb_xpad *xpad) { }
#endif
+/* end LED section */
+
+/*****************************************************************************/
+
+/* Module and device functions */
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)
+ if (xpad->xtype == XTYPE_XBOX360W)
return 0;
xpad->irq_in->dev = xpad->udev;
@@ -688,7 +906,7 @@
{
struct usb_xpad *xpad = input_get_drvdata(dev);
- if(xpad->xtype != XTYPE_XBOX360W)
+ if (xpad->xtype != XTYPE_XBOX360W)
usb_kill_urb(xpad->irq_in);
xpad_stop_output(xpad);
}
@@ -706,7 +924,10 @@
break;
case ABS_Z:
case ABS_RZ: /* the triggers */
- input_set_abs_params(input_dev, abs, 0, 255, 0, 0);
+ /* Triggers have a phony -255 to 255 range. Normally, only
+ * 0 to 255 will be reported (+ axis), unless full_trigger_axis
+ * is set, in which case -255 to 255 will be reported. */
+ input_set_abs_params(input_dev, abs, -255, 255, 0, 0);
break;
case ABS_HAT0X:
case ABS_HAT0Y: /* the d-pad (only if MAP_DPAD_TO_AXES) */
@@ -715,18 +936,22 @@
}
}
-static int xpad_probe(struct usb_interface *intf, const struct usb_device_id *id)
+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 controller_type;
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))
+ if ((le16_to_cpu(udev->descriptor.idVendor) ==
+ xpad_device[i].idVendor) &&
+ (le16_to_cpu(udev->descriptor.idProduct) ==
+ xpad_device[i].idProduct))
break;
}
@@ -747,11 +972,14 @@
xpad->udev = udev;
xpad->dpad_mapping = xpad_device[i].dpad_mapping;
xpad->xtype = xpad_device[i].xtype;
+ controller_type = xpad_device[i].controller_type;
if (xpad->dpad_mapping == MAP_DPAD_UNKNOWN)
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)
+ 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;
@@ -783,16 +1011,18 @@
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)
+ 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)
+ 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]);
+ xpad_set_up_abs(input_dev, xpad_abs_pad[i]);
+ }
error = xpad_init_output(intf, xpad);
if (error)
@@ -820,6 +1050,10 @@
usb_set_intfdata(intf, xpad);
+ xpad->controller_type = controller_type;
+ if (controller_type != XCONTROLLER_TYPE_NONE)
+ xpad_init_controller(xpad);
+
/*
* Submit the int URB immediatly rather than waiting for open
* because we get status messages from the device whether
@@ -828,48 +1062,39 @@
* we're waiting for.
*/
if (xpad->xtype == XTYPE_XBOX360W) {
+ xpad->controller_present = 0;
+ xpad->controller_number =
+ (intf->cur_altsetting->desc.bInterfaceNumber / 2) + 1;
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;
+ } else {
+ xpad->controller_present = 1;
+ xpad->controller_number = 0;
+ }
- 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);
+ /* Set up device attributes */
+ xpad->sysfs_ok = 1;
+ xpad->controller_unique_id[0] = '\0';
+ error = sysfs_create_group(&input_dev->dev.kobj,
+ &xpad_default_attr_group);
+ if (error) {
+ /* Driver will work without the sysfs interface, but parameters
+ * will not be adjustable, so this failure is a warning. */
+ printk(KERN_WARNING
+ "xpad: sysfs_create_group failed with error %d\n",
+ error);
+ xpad->sysfs_ok = 0;
}
+
+ INIT_WORK(&xpad->work, &xpad_work_controller);
return 0;
- fail6: usb_free_urb(xpad->bulk_out);
- fail5: usb_kill_urb(xpad->irq_in);
+ fail5: usb_set_intfdata(intf, NULL);
+ input_unregister_device(xpad->dev);
+ xpad_led_disconnect(xpad);
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);
@@ -881,18 +1106,22 @@
static void xpad_disconnect(struct usb_interface *intf)
{
- struct usb_xpad *xpad = usb_get_intfdata (intf);
+ struct usb_xpad *xpad = usb_get_intfdata(intf);
usb_set_intfdata(intf, NULL);
if (xpad) {
+ /* Ensure we don't have any pending work */
+ flush_scheduled_work();
+
+ if (xpad->sysfs_ok)
+ sysfs_remove_group(&xpad->dev->dev.kobj,
+ &xpad_default_attr_group);
+
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);
+ if (xpad->xtype == XTYPE_XBOX360W)
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);
@@ -900,12 +1129,7 @@
}
}
-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)
{
@@ -920,9 +1144,4 @@
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");
diff -uNr origdrv/drivers/input/joystick/xpad.h newdrv/drivers/input/joystick/xpad.h
--- origdrv/drivers/input/joystick/xpad.h 1969-12-31 19:00:00.000000000 -0500
+++ newdrv/drivers/input/joystick/xpad.h 2009-02-28 23:20:20.000000000 -0500
@@ -0,0 +1,608 @@
+/*
+ * Xbox gamepad driver with Xbox 360 wired/wireless support
+ *
+ * Last Modified: 28 February 2009
+ * Mike Murphy <mamurph@xxxxxxxxxxxxxx>
+ *
+ * Copyright (c) 2002 Marko Friedemann <mfr@xxxxxxxxxxxxxxx>
+ * 2004 Oliver Schwartz <Oliver.Schwartz@xxxxxx>,
+ * Steven Toth <steve@xxxxxxxxxxxxxxxx>,
+ * Franz Lehner <franz@xxxxxxx>,
+ * Ivan Hawkes <blackhawk@xxxxxxxxxxxxxx>
+ * 2005 Dominic Cerquetti <binary1230@xxxxxxxxx>
+ * 2006 Adam Buchbinder <adam.buchbinder@xxxxxxxxx>
+ * 2007 Jan Kratochvil <honza@xxxxxxxx>
+ * 2009 Clemson University
+ * (contact: Mike Murphy <mamurph@xxxxxxxxxxxxxx>)
+ *
+ * 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
+ * - Xbox 360 information http://www.free60.org/wiki/Gamepad
+ * - xboxdrv docs http://pingus.seul.org/~grumbel/xboxdrv/
+ *
+ * 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:
+ * - fix "analog" buttons (reported as digital now)
+ * - need USB IDs for other dance pads
+ *
+ * Driver history is located at the bottom of this file.
+ */
+
+#ifndef _XPAD_H
+#define _XPAD_H
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/stat.h>
+#include <linux/module.h>
+#include <linux/usb/input.h>
+#include <linux/workqueue.h>
+
+#include <linux/kobject.h>
+#include <linux/sysfs.h>
+#include <linux/string.h>
+
+#if defined(CONFIG_JOYSTICK_XPAD_LEDS)
+#include <linux/leds.h>
+
+struct xpad_led {
+ char name[16];
+ struct led_classdev led_cdev;
+ struct usb_xpad *xpad;
+};
+#endif
+
+
+#define DRIVER_AUTHOR "Marko Friedemann <mfr@xxxxxxxxxxxxxxx>"
+#define DRIVER_DESC "Xbox/360 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 2
+
+/* Type of controller *interface* (original, wired 360, wireless 360) */
+#define XTYPE_XBOX 0
+#define XTYPE_XBOX360 1
+#define XTYPE_XBOX360W 2
+#define XTYPE_UNKNOWN 3
+
+/* Type of controller (e.g. pad, guitar, other input device) */
+#define XCONTROLLER_TYPE_NONE 0
+#define XCONTROLLER_TYPE_PAD 1
+#define XCONTROLLER_TYPE_GUITAR 2
+#define XCONTROLLER_TYPE_DANCE_PAD 3
+#define XCONTROLLER_TYPE_OTHER 255
+
+
+/* The Xbox 360 controllers have sensitive sticks that often do not center
+ * exactly. A dead zone causes stick events below a certain threshhold to be
+ * reported as zero.
+ *
+ * The default dead zone size is 8192, which was obtained by testing a
+ * wireless 360 controller with jstest(1) and consulting gaming forums for
+ * a recommended dead zone for this controller. The consensus opinion was
+ * 0.25 (on a scale from 0 to 1), which corresponds to 8192 (out of 32767).
+ */
+#define XDEAD_ZONE_DEFAULT 8192
+
+/* Default limit for the sticks is the maximum axis value (32767), which will
+ * cause the sticks to have a radial axis as designed in the hardware. To
+ * enable square axis support, set the stick limits to 23170 or lower at run
+ * time via the sysfs interface. */
+#define XSTICK_LIMIT_DEFAULT 32767
+
+/* Rumble normally enabled */
+#define XRUMBLE_DEFAULT 1
+
+/* Normally, trigger axes report in the range 0 to 32767 (positive axis only) */
+#define XFULL_TRIGGER_AXIS_DEFAULT 0
+
+
+/* This module parameter is something of a relic, but it remains for
+ * compatibility. Importantly, the option to map the D-PAD buttons applies
+ * only to controller *interfaces* (i.e. vendor and product codes) not
+ * explicitly present in xpad_device[]. */
+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");
+
+
+/* Table of various device interfaces recognized by this driver. Each supported
+ * device has a directional pad mapping, interface type, and controller type.
+ * Note that wireless 360 devices have XCONTROLLER_TYPE_NONE, as the actual
+ * type of the gaming controller is not known until the controller binds
+ * wirelessly with the receiver
+ */
+static const struct xpad_device {
+ u16 idVendor;
+ u16 idProduct;
+ char *name;
+ u8 dpad_mapping;
+ u8 xtype;
+ u8 controller_type;
+} xpad_device[] = {
+ { 0x045e, 0x0202, "Microsoft X-Box pad v1 (US)", MAP_DPAD_TO_AXES,
+ XTYPE_XBOX, XCONTROLLER_TYPE_PAD },
+ { 0x045e, 0x0289, "Microsoft X-Box pad v2 (US)", MAP_DPAD_TO_AXES,
+ XTYPE_XBOX, XCONTROLLER_TYPE_PAD },
+ { 0x045e, 0x0285, "Microsoft X-Box pad (Japan)", MAP_DPAD_TO_AXES,
+ XTYPE_XBOX, XCONTROLLER_TYPE_PAD },
+ { 0x045e, 0x0287, "Microsoft Xbox Controller S", MAP_DPAD_TO_AXES,
+ XTYPE_XBOX, XCONTROLLER_TYPE_PAD },
+ { 0x045e, 0x0719, "Xbox 360 Wireless Receiver", MAP_DPAD_TO_BUTTONS,
+ XTYPE_XBOX360W, XCONTROLLER_TYPE_NONE },
+ { 0x0c12, 0x8809, "RedOctane Xbox Dance Pad", MAP_DPAD_TO_BUTTONS,
+ XTYPE_XBOX, XCONTROLLER_TYPE_DANCE_PAD },
+ { 0x044f, 0x0f07, "Thrustmaster, Inc. Controller", MAP_DPAD_TO_AXES,
+ XTYPE_XBOX, XCONTROLLER_TYPE_PAD },
+ { 0x046d, 0xc242, "Logitech Chillstream Controller", MAP_DPAD_TO_AXES,
+ XTYPE_XBOX360, XCONTROLLER_TYPE_PAD },
+ { 0x046d, 0xca84, "Logitech Xbox Cordless Controller", MAP_DPAD_TO_AXES,
+ XTYPE_XBOX, XCONTROLLER_TYPE_PAD },
+ { 0x046d, 0xca88, "Logitech Compact Controller for Xbox",
+ MAP_DPAD_TO_AXES, XTYPE_XBOX, XCONTROLLER_TYPE_PAD },
+ { 0x05fd, 0x1007, "Mad Catz Controller (unverified)", MAP_DPAD_TO_AXES,
+ XTYPE_XBOX, XCONTROLLER_TYPE_PAD },
+ { 0x05fd, 0x107a, "InterAct 'PowerPad Pro' X-Box pad (Germany)",
+ MAP_DPAD_TO_AXES, XTYPE_XBOX, XCONTROLLER_TYPE_PAD },
+ { 0x0738, 0x4516, "Mad Catz Control Pad", MAP_DPAD_TO_AXES, XTYPE_XBOX,
+ XCONTROLLER_TYPE_PAD },
+ { 0x0738, 0x4522, "Mad Catz LumiCON", MAP_DPAD_TO_AXES, XTYPE_XBOX,
+ XCONTROLLER_TYPE_PAD },
+ { 0x0738, 0x4526, "Mad Catz Control Pad Pro", MAP_DPAD_TO_AXES,
+ XTYPE_XBOX, XCONTROLLER_TYPE_PAD },
+ { 0x0738, 0x4536, "Mad Catz MicroCON", MAP_DPAD_TO_AXES, XTYPE_XBOX,
+ XCONTROLLER_TYPE_PAD },
+ { 0x0738, 0x4540, "Mad Catz Beat Pad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX,
+ XCONTROLLER_TYPE_DANCE_PAD },
+ { 0x0738, 0x4556, "Mad Catz Lynx Wireless Controller", MAP_DPAD_TO_AXES,
+ XTYPE_XBOX, XCONTROLLER_TYPE_PAD },
+ { 0x0738, 0x4716, "Mad Catz Wired Xbox 360 Controller",
+ MAP_DPAD_TO_AXES, XTYPE_XBOX360, XCONTROLLER_TYPE_PAD },
+ { 0x0738, 0x6040, "Mad Catz Beat Pad Pro", MAP_DPAD_TO_BUTTONS,
+ XTYPE_XBOX, XCONTROLLER_TYPE_DANCE_PAD },
+ { 0x0c12, 0x8802, "Zeroplus Xbox Controller", MAP_DPAD_TO_AXES,
+ XTYPE_XBOX, XCONTROLLER_TYPE_PAD },
+ { 0x0c12, 0x880a, "Pelican Eclipse PL-2023", MAP_DPAD_TO_AXES,
+ XTYPE_XBOX, XCONTROLLER_TYPE_PAD },
+ { 0x0c12, 0x8810, "Zeroplus Xbox Controller", MAP_DPAD_TO_AXES,
+ XTYPE_XBOX, XCONTROLLER_TYPE_PAD },
+ { 0x0c12, 0x9902, "HAMA VibraX - *FAULTY HARDWARE*", MAP_DPAD_TO_AXES,
+ XTYPE_XBOX, XCONTROLLER_TYPE_PAD },
+ { 0x0e4c, 0x1097, "Radica Gamester Controller", MAP_DPAD_TO_AXES,
+ XTYPE_XBOX, XCONTROLLER_TYPE_PAD },
+ { 0x0e4c, 0x2390, "Radica Games Jtech Controller", MAP_DPAD_TO_AXES,
+ XTYPE_XBOX, XCONTROLLER_TYPE_PAD },
+ { 0x0e6f, 0x0003, "Logic3 Freebird wireless Controller",
+ MAP_DPAD_TO_AXES, XTYPE_XBOX, XCONTROLLER_TYPE_PAD },
+ { 0x0e6f, 0x0005, "Eclipse wireless Controller", MAP_DPAD_TO_AXES,
+ XTYPE_XBOX, XCONTROLLER_TYPE_PAD },
+ { 0x0e6f, 0x0006, "Edge wireless Controller", MAP_DPAD_TO_AXES,
+ XTYPE_XBOX, XCONTROLLER_TYPE_PAD },
+ { 0x0e6f, 0x0006, "Pelican 'TSZ' Wired Xbox 360 Controller",
+ MAP_DPAD_TO_AXES, XTYPE_XBOX360, XCONTROLLER_TYPE_PAD },
+ { 0x0e8f, 0x0201, "SmartJoy Frag Xpad/PS2 adaptor", MAP_DPAD_TO_AXES,
+ XTYPE_XBOX, XCONTROLLER_TYPE_PAD },
+ { 0x0f30, 0x0202, "Joytech Advanced Controller", MAP_DPAD_TO_AXES,
+ XTYPE_XBOX, XCONTROLLER_TYPE_PAD },
+ { 0x0f30, 0x8888, "BigBen XBMiniPad Controller", MAP_DPAD_TO_AXES,
+ XTYPE_XBOX, XCONTROLLER_TYPE_PAD },
+ { 0x102c, 0xff0c, "Joytech Wireless Advanced Controller",
+ MAP_DPAD_TO_AXES, XTYPE_XBOX, XCONTROLLER_TYPE_PAD },
+ { 0x12ab, 0x8809, "Xbox DDR dancepad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX,
+ XCONTROLLER_TYPE_DANCE_PAD },
+ { 0x1430, 0x4748, "RedOctane Guitar Hero X-plorer", MAP_DPAD_TO_AXES,
+ XTYPE_XBOX360, XCONTROLLER_TYPE_GUITAR },
+ { 0x1430, 0x8888, "TX6500+ Dance Pad (first generation)",
+ MAP_DPAD_TO_BUTTONS, XTYPE_XBOX, XCONTROLLER_TYPE_DANCE_PAD },
+ { 0x045e, 0x028e, "Microsoft X-Box 360 pad", MAP_DPAD_TO_AXES,
+ XTYPE_XBOX360, XCONTROLLER_TYPE_PAD },
+ { 0xffff, 0xffff, "Chinese-made Xbox Controller", MAP_DPAD_TO_AXES,
+ XTYPE_XBOX, XCONTROLLER_TYPE_PAD },
+ { 0x0000, 0x0000, "Generic X-Box pad", MAP_DPAD_UNKNOWN, XTYPE_UNKNOWN,
+ XCONTROLLER_TYPE_PAD }
+};
+
+
+/* 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 */
+ BTN_0, BTN_1, /* d-pad up, down (XXX names??) */
+ -1 /* terminating entry */
+};
+
+/* buttons for x360 controller */
+static const signed short xpad360_btn[] = {
+ BTN_TL, BTN_TR, /* Button LB/RB */
+ BTN_MODE, /* The big X button */
+ -1
+};
+
+/* sticks and triggers common to all devices */
+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 */
+};
+
+
+/* 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[] = {
+ /* X-Box USB-IF not approved class */
+ { USB_INTERFACE_INFO('X', 'B', 0) },
+ XPAD_XBOX360_VENDOR(0x045e), /* Microsoft X-Box 360 controllers */
+ XPAD_XBOX360_VENDOR(0x046d), /* Logitech 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 */
+ { }
+};
+
+MODULE_DEVICE_TABLE(usb, xpad_table);
+
+
+/* Wireless 360 device identification.
+ *
+ * When a wireless controller connects, the 2nd packet it sends SEEMS to
+ * be some kind of unique controller identification message. Using usbmon
+ * (see Documentation/usb/usbmon.txt), I tried 4 gamepads and a guitar, and
+ * I collected the following 5 ID packets from the 5 devices:
+ *
+ * 000f00f0 00ccfd27 0060e226 63700010 13e3201d 30034001 5001ffff ff
+ * 000f00f0 f0ccfd27 0060d8c4 e9600009 13e7201d 30034001 5001ffff ff
+ * 000f00f0 00ccfd27 0060578b 82f00010 13e3201d 30034001 5001ffff ff
+ * 000f00f0 f0ccfd27 0060da1c b1500009 13e7201d 30034001 5001ffff ff
+ * 000f00f0 f0ccfd27 006002d1 71d10000 13e3201d 30034430 5107ffff ff
+ *
+ * From this trace data, I concocted the following (potentially incorrect)
+ * scheme for detecting type and unique ID:
+ *
+ * ******** xx****xx xxxxxxxx xxxx**xx **xx**** ****tttt tttt**** **
+ * | unique id | | type |
+ *
+ * It appears that some of the bytes in the first half of the message, noted
+ * above as "unique id" are some sort of serial number, though I cannot work
+ * out any correspondence between these bytes and the serial number printed
+ * under the battery pack. Many of the bytes in this possibly unique field
+ * are not unique across my controllers, and may not in fact be part of the
+ * controller's unique identification, but I figured it was better to have
+ * extra bytes on either end of the unique byte string instead of the
+ * alternative. In addition, the packet appears to indicate the type of
+ * the controller toward the end: the pads all send 4001 5001, while the
+ * guitar sends 4430 5107.
+ *
+ * Further testing over a wider variety of devices is probably needed to
+ * determine if changes need to be made to this scheme.
+ */
+static const struct w360_id {
+ u32 id_bytes;
+ u8 controller_type;
+} w360_id[] = {
+ { 0x40015001, XCONTROLLER_TYPE_PAD },
+ { 0x44305107, XCONTROLLER_TYPE_GUITAR },
+ { 0x00000000, XCONTROLLER_TYPE_NONE }
+};
+
+
+/* Some of the fields in the following structure are for later use with
+ * userspace applications to recognize individual controllers. The dead zones
+ * and axis limits can be changed "on the fly" and are effective immediately.
+ *
+ * The fields labeled "ro" and "rw" are intended to be read-only and
+ * read-write, respectively, when exposed in sysfs. Most of the read-only
+ * fields are to support *wireless* 360 controllers. The controller_number
+ * is used to set the LED, while controller_present tracks whether the
+ * controller is connected to the wireless receiver. Controller type applies
+ * to all models (wired and wireless), and tracks whether the device is a pad,
+ * guitar, etc. for later userspace use. See the comment above regarding
+ * type and unique ID detection on wireless 360 receivers.
+ */
+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;
+
+#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 */
+ dma_addr_t odata_dma;
+ struct mutex odata_mutex;
+#endif
+
+#if defined(CONFIG_JOYSTICK_XPAD_LEDS)
+ struct xpad_led *led;
+#endif
+
+ char phys[64]; /* physical device path */
+
+ int dpad_mapping; /* map d-pad to buttons or to axes */
+ int xtype; /* type of xbox device */
+
+ /* Work structure for moving the call to xpad_send_led_command
+ * outside the interrupt handler for packet processing */
+ struct work_struct work;
+
+ int controller_number; /* controller # (1-4) for 360w. ro */
+ int controller_present; /* 360w controller presence. ro */
+ int controller_type; /* controller type. ro */
+ char controller_unique_id[17]; /* unique ID of controller (360w). ro */
+ unsigned int left_dead_zone; /* dead zone for left stick. rw */
+ unsigned int right_dead_zone; /* dead zone for right stick. rw */
+ unsigned int left_stick_limit; /* axis limit for left stick. rw */
+ unsigned int right_stick_limit; /* axis limit for right stick. rw */
+ int rumble_enable; /* enable/disable rumble. rw */
+ int left_trigger_full_axis; /* full axis - left trigger. rw */
+ int right_trigger_full_axis; /* full axis - right trigger. rw */
+
+ int sysfs_ok; /* sysfs interface OK */
+};
+#define to_xpad(d) input_get_drvdata(to_input_dev(d))
+
+
+/* Function prototypes for non-sysfs interface functions */
+static void set_dead_zone(unsigned int new_size, unsigned int *dz,
+ unsigned int stick_limit);
+static void set_stick_limit(unsigned int new_size, unsigned int *sl,
+ unsigned int dead_zone);
+static void xpad_init_controller(struct usb_xpad *xpad);
+static void xpad_send_led_command(struct usb_xpad *xpad, int command);
+static void xpad_work_controller(struct work_struct *w);
+static void xpad_process_sticks(struct usb_xpad *xpad, unsigned char *data);
+static void xpad_process_packet(struct usb_xpad *xpad, u16 cmd,
+ unsigned char *data);
+static void xpad360_process_packet(struct usb_xpad *xpad,
+ u16 cmd, unsigned char *data);
+static void xpad360w_identify_controller(struct usb_xpad *xpad,
+ unsigned char *data);
+static void xpad360w_process_packet(struct usb_xpad *xpad, u16 cmd,
+ unsigned char *data);
+static void xpad_irq_in(struct urb *urb);
+static void xpad_irq_out(struct urb *urb);
+static int xpad_init_output(struct usb_interface *intf, struct usb_xpad *xpad);
+static void xpad_stop_output(struct usb_xpad *xpad);
+static void xpad_stop_output(struct usb_xpad *xpad);
+static int xpad_play_effect(struct input_dev *dev, void *data,
+ struct ff_effect *effect);
+static int xpad_init_ff(struct usb_xpad *xpad);
+static void xpad_send_led_command(struct usb_xpad *xpad, int command);
+static void xpad_led_set(struct led_classdev *led_cdev,
+ enum led_brightness value);
+static int xpad_led_probe(struct usb_xpad *xpad);
+static void xpad_led_disconnect(struct usb_xpad *xpad);
+static int xpad_open(struct input_dev *dev);
+static void xpad_close(struct input_dev *dev);
+static void xpad_set_up_abs(struct input_dev *input_dev, signed short abs);
+static int xpad_probe(struct usb_interface *intf,
+ const struct usb_device_id *id);
+static void xpad_disconnect(struct usb_interface *intf);
+static int __init usb_xpad_init(void);
+static void __exit usb_xpad_exit(void);
+
+
+/* sysfs interface */
+static ssize_t xpad_show_uint(struct device *dev, struct device_attribute *attr,
+ char *buf);
+static ssize_t xpad_store_uint(struct device *dev,
+ struct device_attribute *attr, const char *buf, size_t count);
+static ssize_t xpad_store_bool(struct device *dev,
+ struct device_attribute *attr, const char *buf, size_t count);
+static ssize_t xpad_store_ro(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count);
+static ssize_t xpad_show_int(struct device *dev, struct device_attribute *attr,
+ char *buf);
+static ssize_t xpad_show_id(struct device *dev,
+ struct device_attribute *attr, char *buf);
+
+
+
+/* Device attributes */
+static DEVICE_ATTR(left_dead_zone, 0644, xpad_show_uint, xpad_store_uint);
+static DEVICE_ATTR(right_dead_zone, 0644, xpad_show_uint, xpad_store_uint);
+static DEVICE_ATTR(left_stick_limit, 0644, xpad_show_uint, xpad_store_uint);
+static DEVICE_ATTR(right_stick_limit, 0644, xpad_show_uint, xpad_store_uint);
+static DEVICE_ATTR(rumble_enable, 0644, xpad_show_int, xpad_store_bool);
+static DEVICE_ATTR(left_trigger_full_axis, 0644, xpad_show_int,
+ xpad_store_bool);
+static DEVICE_ATTR(right_trigger_full_axis, 0644, xpad_show_int,
+ xpad_store_bool);
+static DEVICE_ATTR(controller_number, 0444, xpad_show_int, xpad_store_ro);
+static DEVICE_ATTR(controller_present, 0444, xpad_show_int, xpad_store_ro);
+static DEVICE_ATTR(controller_type, 0444, xpad_show_int, xpad_store_ro);
+static DEVICE_ATTR(id, 0444, xpad_show_id, xpad_store_ro);
+
+static struct attribute *xpad_default_attrs[] = {
+ &dev_attr_left_dead_zone.attr,
+ &dev_attr_right_dead_zone.attr,
+ &dev_attr_left_stick_limit.attr,
+ &dev_attr_right_stick_limit.attr,
+ &dev_attr_rumble_enable.attr,
+ &dev_attr_left_trigger_full_axis.attr,
+ &dev_attr_right_trigger_full_axis.attr,
+ &dev_attr_controller_number.attr,
+ &dev_attr_controller_present.attr,
+ &dev_attr_controller_type.attr,
+ &dev_attr_id.attr,
+ NULL
+};
+
+static struct attribute_group xpad_default_attr_group = {
+ .attrs = xpad_default_attrs,
+ .name = "game_device",
+};
+
+
+
+static struct usb_driver xpad_driver = {
+ .name = "xpad",
+ .probe = xpad_probe,
+ .disconnect = xpad_disconnect,
+ .id_table = xpad_table,
+};
+
+module_init(usb_xpad_init);
+module_exit(usb_xpad_exit);
+
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+#endif
+
+/* Driver History:
+ *
+ * 2009-02-28 : Triggers now half-axes by default
+ * - triggers will now be positive half-axes only, unless a full axis mapping
+ * is enabled via the sysfs interface on a per-trigger basis
+ * - moved INIT_WORK to xpad_probe and removed INIT_WORK/PREPARE_WORK from
+ * interrupt handler; also removed the work_pending flag from struct
+ * usb_xpad (always flush shared workqueue on unload)
+ * - read-write sysfs attributes now have 644 default permissions
+ *
+ * 2009-02-23 : Changes per mailing list (thanks Frederic Weisbecker)
+ * - no more check for CONFIG_SYSFS: sysfs functions will simply return
+ * 0 if sysfs has not been enabled
+ * - fixed weird ordering in sscanf return check
+ * - checked code with scripts/checkpatch.pl and made style adjustments
+ *
+ * 2009-02-21 : Refactored and changed stick handling
+ * - split code into two pieces (xpad.h and xpad.c)
+ * - cleaned up sysfs interface
+ * - changed square axis algorithm to an axis limit algorithm, which allows
+ * size of inscribed square to be adjusted; available for both sticks
+ * - dead zones now per-stick
+ *
+ * 2009-02-18 : Changes per mailing list (and some additions)
+ * - revised sysfs interface (thanks Greg K-H)
+ * - check return values of sscanf (thanks Oliver Neukum)
+ * - urb submission while holding mutex now once again GFP_KERNEL
+ * (thanks Oliver Neukum)
+ * - work structure fixes (thanks Oliver Neukum)
+ * - uevents generated for wireless controller online/offline
+ * - sysfs interface only if CONFIG_SYSFS is set
+ *
+ * 2009-02-15 : Minor adjustments
+ * - added KOBJ_ONLINE/KOBJ_OFFLINE events when controllers are connected to
+ * or disconnected from the wireless 360 receiver
+ * - ignore duplicate connect messages on the same connection
+ * - added option to enable/disable rumble on a per-controller basis
+ * - rumble events are not sent to guitar or dance pad devices
+ *
+ * 2009-02-14 : Added sysfs interface
+ * - dead zones and square axis settings can now be made per-controller
+ * - removed dead_zone and square_axis module parameters (use sysfs)
+ * - new square axis algorithm
+ *
+ * 2009-02-13 : Disable square axis for right stick
+ * - square axis applies to left stick only
+ *
+ * 2009-02-12 : Scaling for dead zone and square axis support
+ * - axes now scale from 0 to 32767 starting at edge of dead zone
+ * - increased default dead zone to 8192
+ * - initial square axis support (reliable only with left stick)
+ *
+ * 2009-02-07 : More wireless 360 controller fixes
+ * - removed bulk urb completely
+ * - use xpad_send_led_command to set controller number on LED display
+ * (wireless 360 controller)
+ * - dead_zone is now an adjustable module parameter
+ *
+ * 2009-02-06 : Axis handling improvements
+ * - unified handler for left and right sticks
+ * - initial support for dead zones
+ *
+ * 2009-02-02 : Wireless 360 controller fixes
+ * - followed PROTOCOL description from xboxdrv userspace driver
+ * - LED and rumble support added for wireless 360 controller (protocol
+ * is different from wired!)
+ *
+ * 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
+ *
+ * 2002-07-17 - 0.0.5 : simplified d-pad handling
+ *
+ * 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
+ *
+ * 2002-07-14 - 0.0.3 : rework by Vojtech Pavlik
+ * - indentation fixes
+ * - usb + input init sequence fixes
+ *
+ * 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
+ *
+ * 2002-06-27 - 0.0.1 : first version, just said "XBOX HID controller"
+ *
+ */