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1da177e4
LT
1/*
2 * X-Box gamepad - v0.0.5
3 *
4 * Copyright (c) 2002 Marko Friedemann <mfr@bmx-chemnitz.de>
5 *
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License as
9 * published by the Free Software Foundation; either version 2 of
10 * the License, or (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 *
21 *
22 * This driver is based on:
23 * - information from http://euc.jp/periphs/xbox-controller.ja.html
24 * - the iForce driver drivers/char/joystick/iforce.c
25 * - the skeleton-driver drivers/usb/usb-skeleton.c
26 *
27 * Thanks to:
28 * - ITO Takayuki for providing essential xpad information on his website
29 * - Vojtech Pavlik - iforce driver / input subsystem
30 * - Greg Kroah-Hartman - usb-skeleton driver
31 *
32 * TODO:
33 * - fine tune axes
34 * - fix "analog" buttons (reported as digital now)
35 * - get rumble working
36 *
37 * History:
38 *
39 * 2002-06-27 - 0.0.1 : first version, just said "XBOX HID controller"
40 *
41 * 2002-07-02 - 0.0.2 : basic working version
42 * - all axes and 9 of the 10 buttons work (german InterAct device)
43 * - the black button does not work
44 *
45 * 2002-07-14 - 0.0.3 : rework by Vojtech Pavlik
46 * - indentation fixes
47 * - usb + input init sequence fixes
48 *
49 * 2002-07-16 - 0.0.4 : minor changes, merge with Vojtech's v0.0.3
50 * - verified the lack of HID and report descriptors
51 * - verified that ALL buttons WORK
52 * - fixed d-pad to axes mapping
53 *
54 * 2002-07-17 - 0.0.5 : simplified d-pad handling
55 */
56
57#include <linux/config.h>
58#include <linux/kernel.h>
59#include <linux/input.h>
60#include <linux/init.h>
61#include <linux/slab.h>
62#include <linux/module.h>
63#include <linux/smp_lock.h>
64#include <linux/usb.h>
16a334c0 65#include <linux/usb_input.h>
1da177e4
LT
66
67#define DRIVER_VERSION "v0.0.5"
68#define DRIVER_AUTHOR "Marko Friedemann <mfr@bmx-chemnitz.de>"
69#define DRIVER_DESC "X-Box pad driver"
70
71#define XPAD_PKT_LEN 32
72
73static struct xpad_device {
74 u16 idVendor;
75 u16 idProduct;
76 char *name;
77} xpad_device[] = {
78 { 0x045e, 0x0202, "Microsoft X-Box pad (US)" },
79 { 0x045e, 0x0285, "Microsoft X-Box pad (Japan)" },
80 { 0x05fd, 0x107a, "InterAct 'PowerPad Pro' X-Box pad (Germany)" },
81 { 0x0000, 0x0000, "X-Box pad" }
82};
83
84static signed short xpad_btn[] = {
85 BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, /* "analog" buttons */
86 BTN_START, BTN_BACK, BTN_THUMBL, BTN_THUMBR, /* start/back/sticks */
87 -1 /* terminating entry */
88};
89
90static signed short xpad_abs[] = {
91 ABS_X, ABS_Y, /* left stick */
92 ABS_RX, ABS_RY, /* right stick */
93 ABS_Z, ABS_RZ, /* triggers left/right */
94 ABS_HAT0X, ABS_HAT0Y, /* digital pad */
95 -1 /* terminating entry */
96};
97
98static struct usb_device_id xpad_table [] = {
99 { USB_INTERFACE_INFO('X', 'B', 0) }, /* X-Box USB-IF not approved class */
100 { }
101};
102
103MODULE_DEVICE_TABLE (usb, xpad_table);
104
105struct usb_xpad {
c5b7c7c3 106 struct input_dev *dev; /* input device interface */
1da177e4 107 struct usb_device *udev; /* usb device */
05f091ab 108
1da177e4
LT
109 struct urb *irq_in; /* urb for interrupt in report */
110 unsigned char *idata; /* input data */
111 dma_addr_t idata_dma;
05f091ab 112
1da177e4 113 char phys[65]; /* physical device path */
1da177e4
LT
114};
115
116/*
117 * xpad_process_packet
118 *
119 * Completes a request by converting the data into events for the
120 * input subsystem.
121 *
122 * The used report descriptor was taken from ITO Takayukis website:
123 * http://euc.jp/periphs/xbox-controller.ja.html
124 */
125
126static void xpad_process_packet(struct usb_xpad *xpad, u16 cmd, unsigned char *data, struct pt_regs *regs)
127{
c5b7c7c3 128 struct input_dev *dev = xpad->dev;
1da177e4
LT
129
130 input_regs(dev, regs);
05f091ab 131
1da177e4
LT
132 /* left stick */
133 input_report_abs(dev, ABS_X, (__s16) (((__s16)data[13] << 8) | data[12]));
134 input_report_abs(dev, ABS_Y, (__s16) (((__s16)data[15] << 8) | data[14]));
05f091ab 135
1da177e4
LT
136 /* right stick */
137 input_report_abs(dev, ABS_RX, (__s16) (((__s16)data[17] << 8) | data[16]));
138 input_report_abs(dev, ABS_RY, (__s16) (((__s16)data[19] << 8) | data[18]));
05f091ab 139
1da177e4
LT
140 /* triggers left/right */
141 input_report_abs(dev, ABS_Z, data[10]);
142 input_report_abs(dev, ABS_RZ, data[11]);
05f091ab 143
1da177e4
LT
144 /* digital pad */
145 input_report_abs(dev, ABS_HAT0X, !!(data[2] & 0x08) - !!(data[2] & 0x04));
146 input_report_abs(dev, ABS_HAT0Y, !!(data[2] & 0x02) - !!(data[2] & 0x01));
05f091ab 147
1da177e4
LT
148 /* start/back buttons and stick press left/right */
149 input_report_key(dev, BTN_START, (data[2] & 0x10) >> 4);
150 input_report_key(dev, BTN_BACK, (data[2] & 0x20) >> 5);
151 input_report_key(dev, BTN_THUMBL, (data[2] & 0x40) >> 6);
152 input_report_key(dev, BTN_THUMBR, data[2] >> 7);
05f091ab 153
1da177e4
LT
154 /* "analog" buttons A, B, X, Y */
155 input_report_key(dev, BTN_A, data[4]);
156 input_report_key(dev, BTN_B, data[5]);
157 input_report_key(dev, BTN_X, data[6]);
158 input_report_key(dev, BTN_Y, data[7]);
05f091ab 159
1da177e4
LT
160 /* "analog" buttons black, white */
161 input_report_key(dev, BTN_C, data[8]);
162 input_report_key(dev, BTN_Z, data[9]);
163
164 input_sync(dev);
165}
166
167static void xpad_irq_in(struct urb *urb, struct pt_regs *regs)
168{
169 struct usb_xpad *xpad = urb->context;
170 int retval;
05f091ab 171
1da177e4
LT
172 switch (urb->status) {
173 case 0:
174 /* success */
175 break;
176 case -ECONNRESET:
177 case -ENOENT:
178 case -ESHUTDOWN:
179 /* this urb is terminated, clean up */
180 dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status);
181 return;
182 default:
183 dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status);
184 goto exit;
185 }
05f091ab 186
1da177e4
LT
187 xpad_process_packet(xpad, 0, xpad->idata, regs);
188
189exit:
190 retval = usb_submit_urb (urb, GFP_ATOMIC);
191 if (retval)
192 err ("%s - usb_submit_urb failed with result %d",
193 __FUNCTION__, retval);
194}
195
196static int xpad_open (struct input_dev *dev)
197{
198 struct usb_xpad *xpad = dev->private;
05f091ab 199
1da177e4 200 xpad->irq_in->dev = xpad->udev;
65cde54b 201 if (usb_submit_urb(xpad->irq_in, GFP_KERNEL))
1da177e4 202 return -EIO;
05f091ab 203
1da177e4
LT
204 return 0;
205}
206
207static void xpad_close (struct input_dev *dev)
208{
209 struct usb_xpad *xpad = dev->private;
05f091ab 210
65cde54b 211 usb_kill_urb(xpad->irq_in);
1da177e4
LT
212}
213
214static int xpad_probe(struct usb_interface *intf, const struct usb_device_id *id)
215{
216 struct usb_device *udev = interface_to_usbdev (intf);
c5b7c7c3
DT
217 struct usb_xpad *xpad;
218 struct input_dev *input_dev;
1da177e4 219 struct usb_endpoint_descriptor *ep_irq_in;
1da177e4 220 int i;
05f091ab 221
1da177e4
LT
222 for (i = 0; xpad_device[i].idVendor; i++) {
223 if ((le16_to_cpu(udev->descriptor.idVendor) == xpad_device[i].idVendor) &&
224 (le16_to_cpu(udev->descriptor.idProduct) == xpad_device[i].idProduct))
225 break;
226 }
05f091ab 227
c5b7c7c3
DT
228 xpad = kzalloc(sizeof(struct usb_xpad), GFP_KERNEL);
229 input_dev = input_allocate_device();
230 if (!xpad || !input_dev)
231 goto fail1;
05f091ab 232
1da177e4
LT
233 xpad->idata = usb_buffer_alloc(udev, XPAD_PKT_LEN,
234 SLAB_ATOMIC, &xpad->idata_dma);
c5b7c7c3
DT
235 if (!xpad->idata)
236 goto fail1;
1da177e4
LT
237
238 xpad->irq_in = usb_alloc_urb(0, GFP_KERNEL);
c5b7c7c3
DT
239 if (!xpad->irq_in)
240 goto fail2;
05f091ab 241
1da177e4 242 xpad->udev = udev;
c5b7c7c3
DT
243 xpad->dev = input_dev;
244 usb_make_path(udev, xpad->phys, sizeof(xpad->phys));
245 strlcat(xpad->phys, "/input0", sizeof(xpad->phys));
05f091ab 246
c5b7c7c3
DT
247 input_dev->name = xpad_device[i].name;
248 input_dev->phys = xpad->phys;
249 usb_to_input_id(udev, &input_dev->id);
250 input_dev->cdev.dev = &intf->dev;
251 input_dev->private = xpad;
252 input_dev->open = xpad_open;
253 input_dev->close = xpad_close;
05f091ab 254
c5b7c7c3 255 input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
05f091ab 256
1da177e4 257 for (i = 0; xpad_btn[i] >= 0; i++)
c5b7c7c3 258 set_bit(xpad_btn[i], input_dev->keybit);
05f091ab 259
1da177e4 260 for (i = 0; xpad_abs[i] >= 0; i++) {
05f091ab 261
1da177e4 262 signed short t = xpad_abs[i];
05f091ab 263
c5b7c7c3 264 set_bit(t, input_dev->absbit);
05f091ab 265
1da177e4
LT
266 switch (t) {
267 case ABS_X:
268 case ABS_Y:
269 case ABS_RX:
270 case ABS_RY: /* the two sticks */
c5b7c7c3 271 input_set_abs_params(input_dev, t, -32768, 32767, 16, 128);
1da177e4
LT
272 break;
273 case ABS_Z:
274 case ABS_RZ: /* the triggers */
c5b7c7c3 275 input_set_abs_params(input_dev, t, 0, 255, 0, 0);
1da177e4
LT
276 break;
277 case ABS_HAT0X:
278 case ABS_HAT0Y: /* the d-pad */
c5b7c7c3 279 input_set_abs_params(input_dev, t, -1, 1, 0, 0);
1da177e4
LT
280 break;
281 }
282 }
05f091ab 283
c5b7c7c3
DT
284 ep_irq_in = &intf->cur_altsetting->endpoint[0].desc;
285 usb_fill_int_urb(xpad->irq_in, udev,
286 usb_rcvintpipe(udev, ep_irq_in->bEndpointAddress),
287 xpad->idata, XPAD_PKT_LEN, xpad_irq_in,
288 xpad, ep_irq_in->bInterval);
289 xpad->irq_in->transfer_dma = xpad->idata_dma;
290 xpad->irq_in->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
05f091ab 291
c5b7c7c3 292 input_register_device(xpad->dev);
05f091ab 293
1da177e4
LT
294 usb_set_intfdata(intf, xpad);
295 return 0;
c5b7c7c3
DT
296
297fail2: usb_buffer_free(udev, XPAD_PKT_LEN, xpad->idata, xpad->idata_dma);
298fail1: input_free_device(input_dev);
299 kfree(xpad);
300 return -ENOMEM;
301
1da177e4
LT
302}
303
304static void xpad_disconnect(struct usb_interface *intf)
305{
306 struct usb_xpad *xpad = usb_get_intfdata (intf);
05f091ab 307
1da177e4
LT
308 usb_set_intfdata(intf, NULL);
309 if (xpad) {
310 usb_kill_urb(xpad->irq_in);
c5b7c7c3 311 input_unregister_device(xpad->dev);
1da177e4
LT
312 usb_free_urb(xpad->irq_in);
313 usb_buffer_free(interface_to_usbdev(intf), XPAD_PKT_LEN, xpad->idata, xpad->idata_dma);
314 kfree(xpad);
315 }
316}
317
318static struct usb_driver xpad_driver = {
1da177e4
LT
319 .name = "xpad",
320 .probe = xpad_probe,
321 .disconnect = xpad_disconnect,
322 .id_table = xpad_table,
323};
324
325static int __init usb_xpad_init(void)
326{
327 int result = usb_register(&xpad_driver);
328 if (result == 0)
329 info(DRIVER_DESC ":" DRIVER_VERSION);
330 return result;
331}
332
333static void __exit usb_xpad_exit(void)
334{
335 usb_deregister(&xpad_driver);
336}
337
338module_init(usb_xpad_init);
339module_exit(usb_xpad_exit);
340
341MODULE_AUTHOR(DRIVER_AUTHOR);
342MODULE_DESCRIPTION(DRIVER_DESC);
343MODULE_LICENSE("GPL");