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!
This commit is contained in:
Linus Torvalds
362
drivers/usb/input/xpad.c
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362
drivers/usb/input/xpad.c
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/*
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* X-Box gamepad - v0.0.5
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*
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* Copyright (c) 2002 Marko Friedemann <mfr@bmx-chemnitz.de>
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*
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*
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* This driver is based on:
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* - information from http://euc.jp/periphs/xbox-controller.ja.html
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* - the iForce driver drivers/char/joystick/iforce.c
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* - the skeleton-driver drivers/usb/usb-skeleton.c
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*
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* Thanks to:
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* - ITO Takayuki for providing essential xpad information on his website
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* - Vojtech Pavlik - iforce driver / input subsystem
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* - Greg Kroah-Hartman - usb-skeleton driver
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*
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* TODO:
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* - fine tune axes
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* - fix "analog" buttons (reported as digital now)
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* - get rumble working
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*
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* History:
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*
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* 2002-06-27 - 0.0.1 : first version, just said "XBOX HID controller"
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*
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* 2002-07-02 - 0.0.2 : basic working version
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* - all axes and 9 of the 10 buttons work (german InterAct device)
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* - the black button does not work
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*
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* 2002-07-14 - 0.0.3 : rework by Vojtech Pavlik
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* - indentation fixes
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* - usb + input init sequence fixes
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*
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* 2002-07-16 - 0.0.4 : minor changes, merge with Vojtech's v0.0.3
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* - verified the lack of HID and report descriptors
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* - verified that ALL buttons WORK
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* - fixed d-pad to axes mapping
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*
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* 2002-07-17 - 0.0.5 : simplified d-pad handling
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*/
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#include <linux/config.h>
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#include <linux/kernel.h>
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#include <linux/input.h>
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#include <linux/init.h>
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#include <linux/slab.h>
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#include <linux/module.h>
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#include <linux/smp_lock.h>
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#include <linux/usb.h>
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#define DRIVER_VERSION "v0.0.5"
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#define DRIVER_AUTHOR "Marko Friedemann <mfr@bmx-chemnitz.de>"
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#define DRIVER_DESC "X-Box pad driver"
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#define XPAD_PKT_LEN 32
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static struct xpad_device {
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u16 idVendor;
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u16 idProduct;
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char *name;
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} xpad_device[] = {
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{ 0x045e, 0x0202, "Microsoft X-Box pad (US)" },
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{ 0x045e, 0x0285, "Microsoft X-Box pad (Japan)" },
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{ 0x05fd, 0x107a, "InterAct 'PowerPad Pro' X-Box pad (Germany)" },
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{ 0x0000, 0x0000, "X-Box pad" }
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};
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static signed short xpad_btn[] = {
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BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, /* "analog" buttons */
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BTN_START, BTN_BACK, BTN_THUMBL, BTN_THUMBR, /* start/back/sticks */
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-1 /* terminating entry */
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};
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static signed short xpad_abs[] = {
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ABS_X, ABS_Y, /* left stick */
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ABS_RX, ABS_RY, /* right stick */
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ABS_Z, ABS_RZ, /* triggers left/right */
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ABS_HAT0X, ABS_HAT0Y, /* digital pad */
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-1 /* terminating entry */
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};
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static struct usb_device_id xpad_table [] = {
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{ USB_INTERFACE_INFO('X', 'B', 0) }, /* X-Box USB-IF not approved class */
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{ }
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};
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MODULE_DEVICE_TABLE (usb, xpad_table);
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struct usb_xpad {
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struct input_dev dev; /* input device interface */
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struct usb_device *udev; /* usb device */
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struct urb *irq_in; /* urb for interrupt in report */
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unsigned char *idata; /* input data */
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dma_addr_t idata_dma;
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char phys[65]; /* physical device path */
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int open_count; /* reference count */
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};
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/*
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* xpad_process_packet
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*
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* Completes a request by converting the data into events for the
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* input subsystem.
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*
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* The used report descriptor was taken from ITO Takayukis website:
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* http://euc.jp/periphs/xbox-controller.ja.html
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*/
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static void xpad_process_packet(struct usb_xpad *xpad, u16 cmd, unsigned char *data, struct pt_regs *regs)
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{
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struct input_dev *dev = &xpad->dev;
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input_regs(dev, regs);
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/* left stick */
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input_report_abs(dev, ABS_X, (__s16) (((__s16)data[13] << 8) | data[12]));
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input_report_abs(dev, ABS_Y, (__s16) (((__s16)data[15] << 8) | data[14]));
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/* right stick */
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input_report_abs(dev, ABS_RX, (__s16) (((__s16)data[17] << 8) | data[16]));
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input_report_abs(dev, ABS_RY, (__s16) (((__s16)data[19] << 8) | data[18]));
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/* triggers left/right */
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input_report_abs(dev, ABS_Z, data[10]);
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input_report_abs(dev, ABS_RZ, data[11]);
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/* digital pad */
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input_report_abs(dev, ABS_HAT0X, !!(data[2] & 0x08) - !!(data[2] & 0x04));
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input_report_abs(dev, ABS_HAT0Y, !!(data[2] & 0x02) - !!(data[2] & 0x01));
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/* start/back buttons and stick press left/right */
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input_report_key(dev, BTN_START, (data[2] & 0x10) >> 4);
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input_report_key(dev, BTN_BACK, (data[2] & 0x20) >> 5);
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input_report_key(dev, BTN_THUMBL, (data[2] & 0x40) >> 6);
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input_report_key(dev, BTN_THUMBR, data[2] >> 7);
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/* "analog" buttons A, B, X, Y */
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input_report_key(dev, BTN_A, data[4]);
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input_report_key(dev, BTN_B, data[5]);
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input_report_key(dev, BTN_X, data[6]);
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input_report_key(dev, BTN_Y, data[7]);
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/* "analog" buttons black, white */
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input_report_key(dev, BTN_C, data[8]);
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input_report_key(dev, BTN_Z, data[9]);
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input_sync(dev);
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}
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static void xpad_irq_in(struct urb *urb, struct pt_regs *regs)
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{
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struct usb_xpad *xpad = urb->context;
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int retval;
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switch (urb->status) {
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case 0:
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/* success */
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break;
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case -ECONNRESET:
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case -ENOENT:
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case -ESHUTDOWN:
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/* this urb is terminated, clean up */
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dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status);
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return;
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default:
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dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status);
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goto exit;
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}
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xpad_process_packet(xpad, 0, xpad->idata, regs);
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exit:
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retval = usb_submit_urb (urb, GFP_ATOMIC);
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if (retval)
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err ("%s - usb_submit_urb failed with result %d",
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__FUNCTION__, retval);
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}
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static int xpad_open (struct input_dev *dev)
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{
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struct usb_xpad *xpad = dev->private;
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if (xpad->open_count++)
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return 0;
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xpad->irq_in->dev = xpad->udev;
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if (usb_submit_urb(xpad->irq_in, GFP_KERNEL)) {
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xpad->open_count--;
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return -EIO;
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}
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return 0;
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}
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static void xpad_close (struct input_dev *dev)
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{
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struct usb_xpad *xpad = dev->private;
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if (!--xpad->open_count)
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usb_kill_urb(xpad->irq_in);
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}
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static int xpad_probe(struct usb_interface *intf, const struct usb_device_id *id)
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{
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struct usb_device *udev = interface_to_usbdev (intf);
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struct usb_xpad *xpad = NULL;
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struct usb_endpoint_descriptor *ep_irq_in;
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char path[64];
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int i;
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for (i = 0; xpad_device[i].idVendor; i++) {
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if ((le16_to_cpu(udev->descriptor.idVendor) == xpad_device[i].idVendor) &&
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(le16_to_cpu(udev->descriptor.idProduct) == xpad_device[i].idProduct))
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break;
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}
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if ((xpad = kmalloc (sizeof(struct usb_xpad), GFP_KERNEL)) == NULL) {
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err("cannot allocate memory for new pad");
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return -ENOMEM;
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}
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memset(xpad, 0, sizeof(struct usb_xpad));
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xpad->idata = usb_buffer_alloc(udev, XPAD_PKT_LEN,
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SLAB_ATOMIC, &xpad->idata_dma);
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if (!xpad->idata) {
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kfree(xpad);
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return -ENOMEM;
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}
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xpad->irq_in = usb_alloc_urb(0, GFP_KERNEL);
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if (!xpad->irq_in) {
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err("cannot allocate memory for new pad irq urb");
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usb_buffer_free(udev, XPAD_PKT_LEN, xpad->idata, xpad->idata_dma);
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kfree(xpad);
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return -ENOMEM;
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}
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ep_irq_in = &intf->cur_altsetting->endpoint[0].desc;
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usb_fill_int_urb(xpad->irq_in, udev,
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usb_rcvintpipe(udev, ep_irq_in->bEndpointAddress),
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xpad->idata, XPAD_PKT_LEN, xpad_irq_in,
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xpad, ep_irq_in->bInterval);
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xpad->irq_in->transfer_dma = xpad->idata_dma;
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xpad->irq_in->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
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xpad->udev = udev;
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xpad->dev.id.bustype = BUS_USB;
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xpad->dev.id.vendor = le16_to_cpu(udev->descriptor.idVendor);
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xpad->dev.id.product = le16_to_cpu(udev->descriptor.idProduct);
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xpad->dev.id.version = le16_to_cpu(udev->descriptor.bcdDevice);
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xpad->dev.dev = &intf->dev;
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xpad->dev.private = xpad;
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xpad->dev.name = xpad_device[i].name;
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xpad->dev.phys = xpad->phys;
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xpad->dev.open = xpad_open;
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xpad->dev.close = xpad_close;
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usb_make_path(udev, path, 64);
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snprintf(xpad->phys, 64, "%s/input0", path);
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xpad->dev.evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
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for (i = 0; xpad_btn[i] >= 0; i++)
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set_bit(xpad_btn[i], xpad->dev.keybit);
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for (i = 0; xpad_abs[i] >= 0; i++) {
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signed short t = xpad_abs[i];
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set_bit(t, xpad->dev.absbit);
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switch (t) {
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case ABS_X:
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case ABS_Y:
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case ABS_RX:
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case ABS_RY: /* the two sticks */
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xpad->dev.absmax[t] = 32767;
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xpad->dev.absmin[t] = -32768;
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xpad->dev.absflat[t] = 128;
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xpad->dev.absfuzz[t] = 16;
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break;
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case ABS_Z:
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case ABS_RZ: /* the triggers */
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xpad->dev.absmax[t] = 255;
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xpad->dev.absmin[t] = 0;
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break;
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case ABS_HAT0X:
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case ABS_HAT0Y: /* the d-pad */
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xpad->dev.absmax[t] = 1;
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xpad->dev.absmin[t] = -1;
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break;
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}
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}
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input_register_device(&xpad->dev);
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printk(KERN_INFO "input: %s on %s", xpad->dev.name, path);
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usb_set_intfdata(intf, xpad);
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return 0;
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}
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static void xpad_disconnect(struct usb_interface *intf)
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{
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struct usb_xpad *xpad = usb_get_intfdata (intf);
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usb_set_intfdata(intf, NULL);
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if (xpad) {
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usb_kill_urb(xpad->irq_in);
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input_unregister_device(&xpad->dev);
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usb_free_urb(xpad->irq_in);
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usb_buffer_free(interface_to_usbdev(intf), XPAD_PKT_LEN, xpad->idata, xpad->idata_dma);
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kfree(xpad);
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}
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}
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static struct usb_driver xpad_driver = {
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.owner = THIS_MODULE,
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.name = "xpad",
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.probe = xpad_probe,
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.disconnect = xpad_disconnect,
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.id_table = xpad_table,
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};
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static int __init usb_xpad_init(void)
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{
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int result = usb_register(&xpad_driver);
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if (result == 0)
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info(DRIVER_DESC ":" DRIVER_VERSION);
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return result;
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}
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static void __exit usb_xpad_exit(void)
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{
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usb_deregister(&xpad_driver);
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}
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module_init(usb_xpad_init);
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module_exit(usb_xpad_exit);
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MODULE_AUTHOR(DRIVER_AUTHOR);
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MODULE_DESCRIPTION(DRIVER_DESC);
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MODULE_LICENSE("GPL");
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Block a user