Linux-2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

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
--- /dev/null
+++ b/drivers/usb/input/xpad.c
@@ -0,0 +1,362 @@
+/*
+ * 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");