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Diffstat (limited to 'drivers/usb/input/xpad.c')
-rw-r--r--drivers/usb/input/xpad.c362
1 files changed, 362 insertions, 0 deletions
diff --git a/drivers/usb/input/xpad.c b/drivers/usb/input/xpad.c
new file mode 100644
index 00000000000..d65edb22e54
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+++ b/drivers/usb/input/xpad.c
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+/*
+ * X-Box gamepad - v0.0.5
+ *
+ * Copyright (c) 2002 Marko Friedemann <mfr@bmx-chemnitz.de>
+ *
+ *
+ * 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
+ *
+ * TODO:
+ * - fine tune axes
+ * - fix "analog" buttons (reported as digital now)
+ * - get rumble working
+ *
+ * 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
+ */
+
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/input.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/smp_lock.h>
+#include <linux/usb.h>
+
+#define DRIVER_VERSION "v0.0.5"
+#define DRIVER_AUTHOR "Marko Friedemann <mfr@bmx-chemnitz.de>"
+#define DRIVER_DESC "X-Box pad driver"
+
+#define XPAD_PKT_LEN 32
+
+static struct xpad_device {
+ u16 idVendor;
+ u16 idProduct;
+ char *name;
+} xpad_device[] = {
+ { 0x045e, 0x0202, "Microsoft X-Box pad (US)" },
+ { 0x045e, 0x0285, "Microsoft X-Box pad (Japan)" },
+ { 0x05fd, 0x107a, "InterAct 'PowerPad Pro' X-Box pad (Germany)" },
+ { 0x0000, 0x0000, "X-Box pad" }
+};
+
+static 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 */
+};
+
+static signed short xpad_abs[] = {
+ ABS_X, ABS_Y, /* left stick */
+ ABS_RX, ABS_RY, /* right stick */
+ ABS_Z, ABS_RZ, /* triggers left/right */
+ ABS_HAT0X, ABS_HAT0Y, /* digital pad */
+ -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 open_count; /* reference count */
+};
+
+/*
+ * 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 pt_regs *regs)
+{
+ struct input_dev *dev = &xpad->dev;
+
+ input_regs(dev, regs);
+
+ /* 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 */
+ input_report_abs(dev, ABS_HAT0X, !!(data[2] & 0x08) - !!(data[2] & 0x04));
+ input_report_abs(dev, ABS_HAT0Y, !!(data[2] & 0x02) - !!(data[2] & 0x01));
+
+ /* start/back buttons and stick press left/right */
+ input_report_key(dev, BTN_START, (data[2] & 0x10) >> 4);
+ input_report_key(dev, BTN_BACK, (data[2] & 0x20) >> 5);
+ input_report_key(dev, BTN_THUMBL, (data[2] & 0x40) >> 6);
+ input_report_key(dev, BTN_THUMBR, data[2] >> 7);
+
+ /* "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 pt_regs *regs)
+{
+ 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, regs);
+
+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 = dev->private;
+
+ if (xpad->open_count++)
+ return 0;
+
+ xpad->irq_in->dev = xpad->udev;
+ if (usb_submit_urb(xpad->irq_in, GFP_KERNEL)) {
+ xpad->open_count--;
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static void xpad_close (struct input_dev *dev)
+{
+ struct usb_xpad *xpad = dev->private;
+
+ if (!--xpad->open_count)
+ usb_kill_urb(xpad->irq_in);
+}
+
+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 = NULL;
+ struct usb_endpoint_descriptor *ep_irq_in;
+ char path[64];
+ int i;
+
+ 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;
+ }
+
+ if ((xpad = kmalloc (sizeof(struct usb_xpad), GFP_KERNEL)) == NULL) {
+ err("cannot allocate memory for new pad");
+ return -ENOMEM;
+ }
+ memset(xpad, 0, sizeof(struct usb_xpad));
+
+ xpad->idata = usb_buffer_alloc(udev, XPAD_PKT_LEN,
+ SLAB_ATOMIC, &xpad->idata_dma);
+ if (!xpad->idata) {
+ kfree(xpad);
+ return -ENOMEM;
+ }
+
+ xpad->irq_in = usb_alloc_urb(0, GFP_KERNEL);
+ if (!xpad->irq_in) {
+ err("cannot allocate memory for new pad irq urb");
+ usb_buffer_free(udev, XPAD_PKT_LEN, xpad->idata, xpad->idata_dma);
+ kfree(xpad);
+ return -ENOMEM;
+ }
+
+ 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;
+
+ xpad->udev = udev;
+
+ xpad->dev.id.bustype = BUS_USB;
+ xpad->dev.id.vendor = le16_to_cpu(udev->descriptor.idVendor);
+ xpad->dev.id.product = le16_to_cpu(udev->descriptor.idProduct);
+ xpad->dev.id.version = le16_to_cpu(udev->descriptor.bcdDevice);
+ xpad->dev.dev = &intf->dev;
+ xpad->dev.private = xpad;
+ xpad->dev.name = xpad_device[i].name;
+ xpad->dev.phys = xpad->phys;
+ xpad->dev.open = xpad_open;
+ xpad->dev.close = xpad_close;
+
+ usb_make_path(udev, path, 64);
+ snprintf(xpad->phys, 64, "%s/input0", path);
+
+ xpad->dev.evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
+
+ for (i = 0; xpad_btn[i] >= 0; i++)
+ set_bit(xpad_btn[i], xpad->dev.keybit);
+
+ for (i = 0; xpad_abs[i] >= 0; i++) {
+
+ signed short t = xpad_abs[i];
+
+ set_bit(t, xpad->dev.absbit);
+
+ switch (t) {
+ case ABS_X:
+ case ABS_Y:
+ case ABS_RX:
+ case ABS_RY: /* the two sticks */
+ xpad->dev.absmax[t] = 32767;
+ xpad->dev.absmin[t] = -32768;
+ xpad->dev.absflat[t] = 128;
+ xpad->dev.absfuzz[t] = 16;
+ break;
+ case ABS_Z:
+ case ABS_RZ: /* the triggers */
+ xpad->dev.absmax[t] = 255;
+ xpad->dev.absmin[t] = 0;
+ break;
+ case ABS_HAT0X:
+ case ABS_HAT0Y: /* the d-pad */
+ xpad->dev.absmax[t] = 1;
+ xpad->dev.absmin[t] = -1;
+ break;
+ }
+ }
+
+ input_register_device(&xpad->dev);
+
+ printk(KERN_INFO "input: %s on %s", xpad->dev.name, path);
+
+ usb_set_intfdata(intf, xpad);
+ return 0;
+}
+
+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 = {
+ .owner = THIS_MODULE,
+ .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");
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