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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> | |
65 | ||
66 | #define DRIVER_VERSION "v0.0.5" | |
67 | #define DRIVER_AUTHOR "Marko Friedemann <mfr@bmx-chemnitz.de>" | |
68 | #define DRIVER_DESC "X-Box pad driver" | |
69 | ||
70 | #define XPAD_PKT_LEN 32 | |
71 | ||
72 | static struct xpad_device { | |
73 | u16 idVendor; | |
74 | u16 idProduct; | |
75 | char *name; | |
76 | } xpad_device[] = { | |
77 | { 0x045e, 0x0202, "Microsoft X-Box pad (US)" }, | |
78 | { 0x045e, 0x0285, "Microsoft X-Box pad (Japan)" }, | |
79 | { 0x05fd, 0x107a, "InterAct 'PowerPad Pro' X-Box pad (Germany)" }, | |
80 | { 0x0000, 0x0000, "X-Box pad" } | |
81 | }; | |
82 | ||
83 | static signed short xpad_btn[] = { | |
84 | BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, /* "analog" buttons */ | |
85 | BTN_START, BTN_BACK, BTN_THUMBL, BTN_THUMBR, /* start/back/sticks */ | |
86 | -1 /* terminating entry */ | |
87 | }; | |
88 | ||
89 | static signed short xpad_abs[] = { | |
90 | ABS_X, ABS_Y, /* left stick */ | |
91 | ABS_RX, ABS_RY, /* right stick */ | |
92 | ABS_Z, ABS_RZ, /* triggers left/right */ | |
93 | ABS_HAT0X, ABS_HAT0Y, /* digital pad */ | |
94 | -1 /* terminating entry */ | |
95 | }; | |
96 | ||
97 | static struct usb_device_id xpad_table [] = { | |
98 | { USB_INTERFACE_INFO('X', 'B', 0) }, /* X-Box USB-IF not approved class */ | |
99 | { } | |
100 | }; | |
101 | ||
102 | MODULE_DEVICE_TABLE (usb, xpad_table); | |
103 | ||
104 | struct usb_xpad { | |
105 | struct input_dev dev; /* input device interface */ | |
106 | struct usb_device *udev; /* usb device */ | |
107 | ||
108 | struct urb *irq_in; /* urb for interrupt in report */ | |
109 | unsigned char *idata; /* input data */ | |
110 | dma_addr_t idata_dma; | |
111 | ||
112 | char phys[65]; /* physical device path */ | |
113 | int open_count; /* reference count */ | |
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 | ||
126 | static void xpad_process_packet(struct usb_xpad *xpad, u16 cmd, unsigned char *data, struct pt_regs *regs) | |
127 | { | |
128 | struct input_dev *dev = &xpad->dev; | |
129 | ||
130 | input_regs(dev, regs); | |
131 | ||
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])); | |
135 | ||
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])); | |
139 | ||
140 | /* triggers left/right */ | |
141 | input_report_abs(dev, ABS_Z, data[10]); | |
142 | input_report_abs(dev, ABS_RZ, data[11]); | |
143 | ||
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)); | |
147 | ||
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); | |
153 | ||
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]); | |
159 | ||
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 | ||
167 | static void xpad_irq_in(struct urb *urb, struct pt_regs *regs) | |
168 | { | |
169 | struct usb_xpad *xpad = urb->context; | |
170 | int retval; | |
171 | ||
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 | } | |
186 | ||
187 | xpad_process_packet(xpad, 0, xpad->idata, regs); | |
188 | ||
189 | exit: | |
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 | ||
196 | static int xpad_open (struct input_dev *dev) | |
197 | { | |
198 | struct usb_xpad *xpad = dev->private; | |
199 | ||
200 | if (xpad->open_count++) | |
201 | return 0; | |
202 | ||
203 | xpad->irq_in->dev = xpad->udev; | |
204 | if (usb_submit_urb(xpad->irq_in, GFP_KERNEL)) { | |
205 | xpad->open_count--; | |
206 | return -EIO; | |
207 | } | |
208 | ||
209 | return 0; | |
210 | } | |
211 | ||
212 | static void xpad_close (struct input_dev *dev) | |
213 | { | |
214 | struct usb_xpad *xpad = dev->private; | |
215 | ||
216 | if (!--xpad->open_count) | |
217 | usb_kill_urb(xpad->irq_in); | |
218 | } | |
219 | ||
220 | static int xpad_probe(struct usb_interface *intf, const struct usb_device_id *id) | |
221 | { | |
222 | struct usb_device *udev = interface_to_usbdev (intf); | |
223 | struct usb_xpad *xpad = NULL; | |
224 | struct usb_endpoint_descriptor *ep_irq_in; | |
225 | char path[64]; | |
226 | int i; | |
227 | ||
228 | for (i = 0; xpad_device[i].idVendor; i++) { | |
229 | if ((le16_to_cpu(udev->descriptor.idVendor) == xpad_device[i].idVendor) && | |
230 | (le16_to_cpu(udev->descriptor.idProduct) == xpad_device[i].idProduct)) | |
231 | break; | |
232 | } | |
233 | ||
234 | if ((xpad = kmalloc (sizeof(struct usb_xpad), GFP_KERNEL)) == NULL) { | |
235 | err("cannot allocate memory for new pad"); | |
236 | return -ENOMEM; | |
237 | } | |
238 | memset(xpad, 0, sizeof(struct usb_xpad)); | |
239 | ||
240 | xpad->idata = usb_buffer_alloc(udev, XPAD_PKT_LEN, | |
241 | SLAB_ATOMIC, &xpad->idata_dma); | |
242 | if (!xpad->idata) { | |
243 | kfree(xpad); | |
244 | return -ENOMEM; | |
245 | } | |
246 | ||
247 | xpad->irq_in = usb_alloc_urb(0, GFP_KERNEL); | |
248 | if (!xpad->irq_in) { | |
249 | err("cannot allocate memory for new pad irq urb"); | |
250 | usb_buffer_free(udev, XPAD_PKT_LEN, xpad->idata, xpad->idata_dma); | |
251 | kfree(xpad); | |
252 | return -ENOMEM; | |
253 | } | |
254 | ||
255 | ep_irq_in = &intf->cur_altsetting->endpoint[0].desc; | |
256 | ||
257 | usb_fill_int_urb(xpad->irq_in, udev, | |
258 | usb_rcvintpipe(udev, ep_irq_in->bEndpointAddress), | |
259 | xpad->idata, XPAD_PKT_LEN, xpad_irq_in, | |
260 | xpad, ep_irq_in->bInterval); | |
261 | xpad->irq_in->transfer_dma = xpad->idata_dma; | |
262 | xpad->irq_in->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; | |
263 | ||
264 | xpad->udev = udev; | |
265 | ||
266 | xpad->dev.id.bustype = BUS_USB; | |
267 | xpad->dev.id.vendor = le16_to_cpu(udev->descriptor.idVendor); | |
268 | xpad->dev.id.product = le16_to_cpu(udev->descriptor.idProduct); | |
269 | xpad->dev.id.version = le16_to_cpu(udev->descriptor.bcdDevice); | |
270 | xpad->dev.dev = &intf->dev; | |
271 | xpad->dev.private = xpad; | |
272 | xpad->dev.name = xpad_device[i].name; | |
273 | xpad->dev.phys = xpad->phys; | |
274 | xpad->dev.open = xpad_open; | |
275 | xpad->dev.close = xpad_close; | |
276 | ||
277 | usb_make_path(udev, path, 64); | |
278 | snprintf(xpad->phys, 64, "%s/input0", path); | |
279 | ||
280 | xpad->dev.evbit[0] = BIT(EV_KEY) | BIT(EV_ABS); | |
281 | ||
282 | for (i = 0; xpad_btn[i] >= 0; i++) | |
283 | set_bit(xpad_btn[i], xpad->dev.keybit); | |
284 | ||
285 | for (i = 0; xpad_abs[i] >= 0; i++) { | |
286 | ||
287 | signed short t = xpad_abs[i]; | |
288 | ||
289 | set_bit(t, xpad->dev.absbit); | |
290 | ||
291 | switch (t) { | |
292 | case ABS_X: | |
293 | case ABS_Y: | |
294 | case ABS_RX: | |
295 | case ABS_RY: /* the two sticks */ | |
296 | xpad->dev.absmax[t] = 32767; | |
297 | xpad->dev.absmin[t] = -32768; | |
298 | xpad->dev.absflat[t] = 128; | |
299 | xpad->dev.absfuzz[t] = 16; | |
300 | break; | |
301 | case ABS_Z: | |
302 | case ABS_RZ: /* the triggers */ | |
303 | xpad->dev.absmax[t] = 255; | |
304 | xpad->dev.absmin[t] = 0; | |
305 | break; | |
306 | case ABS_HAT0X: | |
307 | case ABS_HAT0Y: /* the d-pad */ | |
308 | xpad->dev.absmax[t] = 1; | |
309 | xpad->dev.absmin[t] = -1; | |
310 | break; | |
311 | } | |
312 | } | |
313 | ||
314 | input_register_device(&xpad->dev); | |
315 | ||
316 | printk(KERN_INFO "input: %s on %s", xpad->dev.name, path); | |
317 | ||
318 | usb_set_intfdata(intf, xpad); | |
319 | return 0; | |
320 | } | |
321 | ||
322 | static void xpad_disconnect(struct usb_interface *intf) | |
323 | { | |
324 | struct usb_xpad *xpad = usb_get_intfdata (intf); | |
325 | ||
326 | usb_set_intfdata(intf, NULL); | |
327 | if (xpad) { | |
328 | usb_kill_urb(xpad->irq_in); | |
329 | input_unregister_device(&xpad->dev); | |
330 | usb_free_urb(xpad->irq_in); | |
331 | usb_buffer_free(interface_to_usbdev(intf), XPAD_PKT_LEN, xpad->idata, xpad->idata_dma); | |
332 | kfree(xpad); | |
333 | } | |
334 | } | |
335 | ||
336 | static struct usb_driver xpad_driver = { | |
337 | .owner = THIS_MODULE, | |
338 | .name = "xpad", | |
339 | .probe = xpad_probe, | |
340 | .disconnect = xpad_disconnect, | |
341 | .id_table = xpad_table, | |
342 | }; | |
343 | ||
344 | static int __init usb_xpad_init(void) | |
345 | { | |
346 | int result = usb_register(&xpad_driver); | |
347 | if (result == 0) | |
348 | info(DRIVER_DESC ":" DRIVER_VERSION); | |
349 | return result; | |
350 | } | |
351 | ||
352 | static void __exit usb_xpad_exit(void) | |
353 | { | |
354 | usb_deregister(&xpad_driver); | |
355 | } | |
356 | ||
357 | module_init(usb_xpad_init); | |
358 | module_exit(usb_xpad_exit); | |
359 | ||
360 | MODULE_AUTHOR(DRIVER_AUTHOR); | |
361 | MODULE_DESCRIPTION(DRIVER_DESC); | |
362 | MODULE_LICENSE("GPL"); |