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05f091ab | 1 | /* |
1da177e4 LT |
2 | * USB ATI Remote support |
3 | * | |
4 | * Version 2.2.0 Copyright (c) 2004 Torrey Hoffman <thoffman@arnor.net> | |
5 | * Version 2.1.1 Copyright (c) 2002 Vladimir Dergachev | |
6 | * | |
7 | * This 2.2.0 version is a rewrite / cleanup of the 2.1.1 driver, including | |
05f091ab | 8 | * porting to the 2.6 kernel interfaces, along with other modification |
1da177e4 LT |
9 | * to better match the style of the existing usb/input drivers. However, the |
10 | * protocol and hardware handling is essentially unchanged from 2.1.1. | |
05f091ab DT |
11 | * |
12 | * The 2.1.1 driver was derived from the usbati_remote and usbkbd drivers by | |
1da177e4 LT |
13 | * Vojtech Pavlik. |
14 | * | |
15 | * Changes: | |
16 | * | |
17 | * Feb 2004: Torrey Hoffman <thoffman@arnor.net> | |
18 | * Version 2.2.0 | |
19 | * Jun 2004: Torrey Hoffman <thoffman@arnor.net> | |
20 | * Version 2.2.1 | |
21 | * Added key repeat support contributed by: | |
22 | * Vincent Vanackere <vanackere@lif.univ-mrs.fr> | |
23 | * Added support for the "Lola" remote contributed by: | |
24 | * Seth Cohn <sethcohn@yahoo.com> | |
25 | * | |
05f091ab | 26 | * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * |
1da177e4 LT |
27 | * |
28 | * This program is free software; you can redistribute it and/or modify | |
29 | * it under the terms of the GNU General Public License as published by | |
05f091ab | 30 | * the Free Software Foundation; either version 2 of the License, or |
1da177e4 | 31 | * (at your option) any later version. |
05f091ab | 32 | * |
1da177e4 LT |
33 | * This program is distributed in the hope that it will be useful, |
34 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
35 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
36 | * GNU General Public License for more details. | |
05f091ab | 37 | * |
1da177e4 LT |
38 | * You should have received a copy of the GNU General Public License |
39 | * along with this program; if not, write to the Free Software | |
40 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
05f091ab DT |
41 | * |
42 | * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * | |
1da177e4 LT |
43 | * |
44 | * Hardware & software notes | |
45 | * | |
05f091ab DT |
46 | * These remote controls are distributed by ATI as part of their |
47 | * "All-In-Wonder" video card packages. The receiver self-identifies as a | |
1da177e4 LT |
48 | * "USB Receiver" with manufacturer "X10 Wireless Technology Inc". |
49 | * | |
05f091ab | 50 | * The "Lola" remote is available from X10. See: |
1da177e4 LT |
51 | * http://www.x10.com/products/lola_sg1.htm |
52 | * The Lola is similar to the ATI remote but has no mouse support, and slightly | |
53 | * different keys. | |
54 | * | |
05f091ab | 55 | * It is possible to use multiple receivers and remotes on multiple computers |
1da177e4 | 56 | * simultaneously by configuring them to use specific channels. |
05f091ab DT |
57 | * |
58 | * The RF protocol used by the remote supports 16 distinct channels, 1 to 16. | |
59 | * Actually, it may even support more, at least in some revisions of the | |
1da177e4 LT |
60 | * hardware. |
61 | * | |
62 | * Each remote can be configured to transmit on one channel as follows: | |
05f091ab DT |
63 | * - Press and hold the "hand icon" button. |
64 | * - When the red LED starts to blink, let go of the "hand icon" button. | |
65 | * - When it stops blinking, input the channel code as two digits, from 01 | |
1da177e4 | 66 | * to 16, and press the hand icon again. |
05f091ab | 67 | * |
1da177e4 LT |
68 | * The timing can be a little tricky. Try loading the module with debug=1 |
69 | * to have the kernel print out messages about the remote control number | |
70 | * and mask. Note: debugging prints remote numbers as zero-based hexadecimal. | |
71 | * | |
72 | * The driver has a "channel_mask" parameter. This bitmask specifies which | |
05f091ab | 73 | * channels will be ignored by the module. To mask out channels, just add |
1da177e4 LT |
74 | * all the 2^channel_number values together. |
75 | * | |
76 | * For instance, set channel_mask = 2^4 = 16 (binary 10000) to make ati_remote | |
05f091ab | 77 | * ignore signals coming from remote controls transmitting on channel 4, but |
1da177e4 LT |
78 | * accept all other channels. |
79 | * | |
05f091ab | 80 | * Or, set channel_mask = 65533, (0xFFFD), and all channels except 1 will be |
1da177e4 LT |
81 | * ignored. |
82 | * | |
05f091ab | 83 | * The default is 0 (respond to all channels). Bit 0 and bits 17-32 of this |
1da177e4 LT |
84 | * parameter are unused. |
85 | * | |
86 | */ | |
87 | ||
1da177e4 LT |
88 | #include <linux/kernel.h> |
89 | #include <linux/errno.h> | |
90 | #include <linux/init.h> | |
91 | #include <linux/slab.h> | |
92 | #include <linux/module.h> | |
ae0dadcf | 93 | #include <linux/usb/input.h> |
1da177e4 | 94 | #include <linux/wait.h> |
f0b80fbf | 95 | #include <linux/jiffies.h> |
1da177e4 LT |
96 | |
97 | /* | |
98 | * Module and Version Information, Module Parameters | |
99 | */ | |
05f091ab DT |
100 | |
101 | #define ATI_REMOTE_VENDOR_ID 0x0bc7 | |
102 | #define ATI_REMOTE_PRODUCT_ID 0x004 | |
103 | #define LOLA_REMOTE_PRODUCT_ID 0x002 | |
1da177e4 LT |
104 | #define MEDION_REMOTE_PRODUCT_ID 0x006 |
105 | ||
05f091ab | 106 | #define DRIVER_VERSION "2.2.1" |
1da177e4 LT |
107 | #define DRIVER_AUTHOR "Torrey Hoffman <thoffman@arnor.net>" |
108 | #define DRIVER_DESC "ATI/X10 RF USB Remote Control" | |
109 | ||
110 | #define NAME_BUFSIZE 80 /* size of product name, path buffers */ | |
111 | #define DATA_BUFSIZE 63 /* size of URB data buffers */ | |
1da177e4 | 112 | |
c6698697 EH |
113 | /* |
114 | * Duplicate event filtering time. | |
115 | * Sequential, identical KIND_FILTERED inputs with less than | |
116 | * FILTER_TIME milliseconds between them are considered as repeat | |
117 | * events. The hardware generates 5 events for the first keypress | |
118 | * and we have to take this into account for an accurate repeat | |
119 | * behaviour. | |
120 | */ | |
121 | #define FILTER_TIME 60 /* msec */ | |
0de95509 | 122 | #define REPEAT_DELAY 500 /* msec */ |
c6698697 | 123 | |
65cde54b | 124 | static unsigned long channel_mask; |
c605b679 | 125 | module_param(channel_mask, ulong, 0644); |
1da177e4 LT |
126 | MODULE_PARM_DESC(channel_mask, "Bitmask of remote control channels to ignore"); |
127 | ||
65cde54b | 128 | static int debug; |
c605b679 | 129 | module_param(debug, int, 0644); |
1da177e4 LT |
130 | MODULE_PARM_DESC(debug, "Enable extra debug messages and information"); |
131 | ||
c6698697 EH |
132 | static int repeat_filter = FILTER_TIME; |
133 | module_param(repeat_filter, int, 0644); | |
134 | MODULE_PARM_DESC(repeat_filter, "Repeat filter time, default = 60 msec"); | |
135 | ||
0de95509 KP |
136 | static int repeat_delay = REPEAT_DELAY; |
137 | module_param(repeat_delay, int, 0644); | |
138 | MODULE_PARM_DESC(repeat_delay, "Delay before sending repeats, default = 500 msec"); | |
139 | ||
1da177e4 LT |
140 | #define dbginfo(dev, format, arg...) do { if (debug) dev_info(dev , format , ## arg); } while (0) |
141 | #undef err | |
142 | #define err(format, arg...) printk(KERN_ERR format , ## arg) | |
05f091ab | 143 | |
1da177e4 LT |
144 | static struct usb_device_id ati_remote_table[] = { |
145 | { USB_DEVICE(ATI_REMOTE_VENDOR_ID, ATI_REMOTE_PRODUCT_ID) }, | |
146 | { USB_DEVICE(ATI_REMOTE_VENDOR_ID, LOLA_REMOTE_PRODUCT_ID) }, | |
147 | { USB_DEVICE(ATI_REMOTE_VENDOR_ID, MEDION_REMOTE_PRODUCT_ID) }, | |
148 | {} /* Terminating entry */ | |
149 | }; | |
150 | ||
151 | MODULE_DEVICE_TABLE(usb, ati_remote_table); | |
152 | ||
153 | /* Get hi and low bytes of a 16-bits int */ | |
154 | #define HI(a) ((unsigned char)((a) >> 8)) | |
155 | #define LO(a) ((unsigned char)((a) & 0xff)) | |
156 | ||
157 | #define SEND_FLAG_IN_PROGRESS 1 | |
158 | #define SEND_FLAG_COMPLETE 2 | |
159 | ||
160 | /* Device initialization strings */ | |
161 | static char init1[] = { 0x01, 0x00, 0x20, 0x14 }; | |
162 | static char init2[] = { 0x01, 0x00, 0x20, 0x14, 0x20, 0x20, 0x20 }; | |
163 | ||
1da177e4 | 164 | struct ati_remote { |
c5b7c7c3 | 165 | struct input_dev *idev; |
1da177e4 LT |
166 | struct usb_device *udev; |
167 | struct usb_interface *interface; | |
05f091ab | 168 | |
1da177e4 LT |
169 | struct urb *irq_urb; |
170 | struct urb *out_urb; | |
171 | struct usb_endpoint_descriptor *endpoint_in; | |
172 | struct usb_endpoint_descriptor *endpoint_out; | |
173 | unsigned char *inbuf; | |
174 | unsigned char *outbuf; | |
175 | dma_addr_t inbuf_dma; | |
176 | dma_addr_t outbuf_dma; | |
177 | ||
1da177e4 LT |
178 | unsigned char old_data[2]; /* Detect duplicate events */ |
179 | unsigned long old_jiffies; | |
180 | unsigned long acc_jiffies; /* handle acceleration */ | |
0de95509 KP |
181 | unsigned long first_jiffies; |
182 | ||
1da177e4 | 183 | unsigned int repeat_count; |
05f091ab | 184 | |
1da177e4 LT |
185 | char name[NAME_BUFSIZE]; |
186 | char phys[NAME_BUFSIZE]; | |
187 | ||
188 | wait_queue_head_t wait; | |
189 | int send_flags; | |
190 | }; | |
191 | ||
192 | /* "Kinds" of messages sent from the hardware to the driver. */ | |
193 | #define KIND_END 0 | |
194 | #define KIND_LITERAL 1 /* Simply pass to input system */ | |
195 | #define KIND_FILTERED 2 /* Add artificial key-up events, drop keyrepeats */ | |
196 | #define KIND_LU 3 /* Directional keypad diagonals - left up, */ | |
197 | #define KIND_RU 4 /* right up, */ | |
198 | #define KIND_LD 5 /* left down, */ | |
199 | #define KIND_RD 6 /* right down */ | |
200 | #define KIND_ACCEL 7 /* Directional keypad - left, right, up, down.*/ | |
201 | ||
202 | /* Translation table from hardware messages to input events. */ | |
4c4c9432 | 203 | static const struct { |
1da177e4 LT |
204 | short kind; |
205 | unsigned char data1, data2; | |
206 | int type; | |
207 | unsigned int code; | |
208 | int value; | |
c5b7c7c3 | 209 | } ati_remote_tbl[] = { |
1da177e4 LT |
210 | /* Directional control pad axes */ |
211 | {KIND_ACCEL, 0x35, 0x70, EV_REL, REL_X, -1}, /* left */ | |
212 | {KIND_ACCEL, 0x36, 0x71, EV_REL, REL_X, 1}, /* right */ | |
213 | {KIND_ACCEL, 0x37, 0x72, EV_REL, REL_Y, -1}, /* up */ | |
214 | {KIND_ACCEL, 0x38, 0x73, EV_REL, REL_Y, 1}, /* down */ | |
05f091ab | 215 | /* Directional control pad diagonals */ |
1da177e4 LT |
216 | {KIND_LU, 0x39, 0x74, EV_REL, 0, 0}, /* left up */ |
217 | {KIND_RU, 0x3a, 0x75, EV_REL, 0, 0}, /* right up */ | |
218 | {KIND_LD, 0x3c, 0x77, EV_REL, 0, 0}, /* left down */ | |
219 | {KIND_RD, 0x3b, 0x76, EV_REL, 0, 0}, /* right down */ | |
220 | ||
221 | /* "Mouse button" buttons */ | |
222 | {KIND_LITERAL, 0x3d, 0x78, EV_KEY, BTN_LEFT, 1}, /* left btn down */ | |
223 | {KIND_LITERAL, 0x3e, 0x79, EV_KEY, BTN_LEFT, 0}, /* left btn up */ | |
224 | {KIND_LITERAL, 0x41, 0x7c, EV_KEY, BTN_RIGHT, 1},/* right btn down */ | |
225 | {KIND_LITERAL, 0x42, 0x7d, EV_KEY, BTN_RIGHT, 0},/* right btn up */ | |
226 | ||
05f091ab | 227 | /* Artificial "doubleclick" events are generated by the hardware. |
1da177e4 LT |
228 | * They are mapped to the "side" and "extra" mouse buttons here. */ |
229 | {KIND_FILTERED, 0x3f, 0x7a, EV_KEY, BTN_SIDE, 1}, /* left dblclick */ | |
230 | {KIND_FILTERED, 0x43, 0x7e, EV_KEY, BTN_EXTRA, 1},/* right dblclick */ | |
231 | ||
232 | /* keyboard. */ | |
233 | {KIND_FILTERED, 0xd2, 0x0d, EV_KEY, KEY_1, 1}, | |
234 | {KIND_FILTERED, 0xd3, 0x0e, EV_KEY, KEY_2, 1}, | |
235 | {KIND_FILTERED, 0xd4, 0x0f, EV_KEY, KEY_3, 1}, | |
236 | {KIND_FILTERED, 0xd5, 0x10, EV_KEY, KEY_4, 1}, | |
237 | {KIND_FILTERED, 0xd6, 0x11, EV_KEY, KEY_5, 1}, | |
238 | {KIND_FILTERED, 0xd7, 0x12, EV_KEY, KEY_6, 1}, | |
239 | {KIND_FILTERED, 0xd8, 0x13, EV_KEY, KEY_7, 1}, | |
240 | {KIND_FILTERED, 0xd9, 0x14, EV_KEY, KEY_8, 1}, | |
241 | {KIND_FILTERED, 0xda, 0x15, EV_KEY, KEY_9, 1}, | |
242 | {KIND_FILTERED, 0xdc, 0x17, EV_KEY, KEY_0, 1}, | |
243 | {KIND_FILTERED, 0xc5, 0x00, EV_KEY, KEY_A, 1}, | |
244 | {KIND_FILTERED, 0xc6, 0x01, EV_KEY, KEY_B, 1}, | |
245 | {KIND_FILTERED, 0xde, 0x19, EV_KEY, KEY_C, 1}, | |
246 | {KIND_FILTERED, 0xe0, 0x1b, EV_KEY, KEY_D, 1}, | |
247 | {KIND_FILTERED, 0xe6, 0x21, EV_KEY, KEY_E, 1}, | |
248 | {KIND_FILTERED, 0xe8, 0x23, EV_KEY, KEY_F, 1}, | |
249 | ||
250 | /* "special" keys */ | |
251 | {KIND_FILTERED, 0xdd, 0x18, EV_KEY, KEY_KPENTER, 1}, /* "check" */ | |
252 | {KIND_FILTERED, 0xdb, 0x16, EV_KEY, KEY_MENU, 1}, /* "menu" */ | |
253 | {KIND_FILTERED, 0xc7, 0x02, EV_KEY, KEY_POWER, 1}, /* Power */ | |
254 | {KIND_FILTERED, 0xc8, 0x03, EV_KEY, KEY_TV, 1}, /* TV */ | |
255 | {KIND_FILTERED, 0xc9, 0x04, EV_KEY, KEY_DVD, 1}, /* DVD */ | |
256 | {KIND_FILTERED, 0xca, 0x05, EV_KEY, KEY_WWW, 1}, /* WEB */ | |
257 | {KIND_FILTERED, 0xcb, 0x06, EV_KEY, KEY_BOOKMARKS, 1}, /* "book" */ | |
258 | {KIND_FILTERED, 0xcc, 0x07, EV_KEY, KEY_EDIT, 1}, /* "hand" */ | |
259 | {KIND_FILTERED, 0xe1, 0x1c, EV_KEY, KEY_COFFEE, 1}, /* "timer" */ | |
260 | {KIND_FILTERED, 0xe5, 0x20, EV_KEY, KEY_FRONT, 1}, /* "max" */ | |
261 | {KIND_FILTERED, 0xe2, 0x1d, EV_KEY, KEY_LEFT, 1}, /* left */ | |
262 | {KIND_FILTERED, 0xe4, 0x1f, EV_KEY, KEY_RIGHT, 1}, /* right */ | |
263 | {KIND_FILTERED, 0xe7, 0x22, EV_KEY, KEY_DOWN, 1}, /* down */ | |
264 | {KIND_FILTERED, 0xdf, 0x1a, EV_KEY, KEY_UP, 1}, /* up */ | |
265 | {KIND_FILTERED, 0xe3, 0x1e, EV_KEY, KEY_OK, 1}, /* "OK" */ | |
266 | {KIND_FILTERED, 0xce, 0x09, EV_KEY, KEY_VOLUMEDOWN, 1}, /* VOL + */ | |
267 | {KIND_FILTERED, 0xcd, 0x08, EV_KEY, KEY_VOLUMEUP, 1}, /* VOL - */ | |
268 | {KIND_FILTERED, 0xcf, 0x0a, EV_KEY, KEY_MUTE, 1}, /* MUTE */ | |
269 | {KIND_FILTERED, 0xd0, 0x0b, EV_KEY, KEY_CHANNELUP, 1}, /* CH + */ | |
270 | {KIND_FILTERED, 0xd1, 0x0c, EV_KEY, KEY_CHANNELDOWN, 1},/* CH - */ | |
271 | {KIND_FILTERED, 0xec, 0x27, EV_KEY, KEY_RECORD, 1}, /* ( o) red */ | |
272 | {KIND_FILTERED, 0xea, 0x25, EV_KEY, KEY_PLAY, 1}, /* ( >) */ | |
273 | {KIND_FILTERED, 0xe9, 0x24, EV_KEY, KEY_REWIND, 1}, /* (<<) */ | |
274 | {KIND_FILTERED, 0xeb, 0x26, EV_KEY, KEY_FORWARD, 1}, /* (>>) */ | |
05f091ab | 275 | {KIND_FILTERED, 0xed, 0x28, EV_KEY, KEY_STOP, 1}, /* ([]) */ |
1da177e4 LT |
276 | {KIND_FILTERED, 0xee, 0x29, EV_KEY, KEY_PAUSE, 1}, /* ('') */ |
277 | {KIND_FILTERED, 0xf0, 0x2b, EV_KEY, KEY_PREVIOUS, 1}, /* (<-) */ | |
278 | {KIND_FILTERED, 0xef, 0x2a, EV_KEY, KEY_NEXT, 1}, /* (>+) */ | |
279 | {KIND_FILTERED, 0xf2, 0x2D, EV_KEY, KEY_INFO, 1}, /* PLAYING */ | |
280 | {KIND_FILTERED, 0xf3, 0x2E, EV_KEY, KEY_HOME, 1}, /* TOP */ | |
281 | {KIND_FILTERED, 0xf4, 0x2F, EV_KEY, KEY_END, 1}, /* END */ | |
05f091ab DT |
282 | {KIND_FILTERED, 0xf5, 0x30, EV_KEY, KEY_SELECT, 1}, /* SELECT */ |
283 | ||
1da177e4 LT |
284 | {KIND_END, 0x00, 0x00, EV_MAX + 1, 0, 0} |
285 | }; | |
286 | ||
287 | /* Local function prototypes */ | |
288 | static void ati_remote_dump (unsigned char *data, unsigned int actual_length); | |
1da177e4 LT |
289 | static int ati_remote_open (struct input_dev *inputdev); |
290 | static void ati_remote_close (struct input_dev *inputdev); | |
291 | static int ati_remote_sendpacket (struct ati_remote *ati_remote, u16 cmd, unsigned char *data); | |
7d12e780 DH |
292 | static void ati_remote_irq_out (struct urb *urb); |
293 | static void ati_remote_irq_in (struct urb *urb); | |
294 | static void ati_remote_input_report (struct urb *urb); | |
1da177e4 LT |
295 | static int ati_remote_initialize (struct ati_remote *ati_remote); |
296 | static int ati_remote_probe (struct usb_interface *interface, const struct usb_device_id *id); | |
297 | static void ati_remote_disconnect (struct usb_interface *interface); | |
298 | ||
299 | /* usb specific object to register with the usb subsystem */ | |
300 | static struct usb_driver ati_remote_driver = { | |
1da177e4 LT |
301 | .name = "ati_remote", |
302 | .probe = ati_remote_probe, | |
303 | .disconnect = ati_remote_disconnect, | |
304 | .id_table = ati_remote_table, | |
305 | }; | |
306 | ||
307 | /* | |
308 | * ati_remote_dump_input | |
309 | */ | |
310 | static void ati_remote_dump(unsigned char *data, unsigned int len) | |
311 | { | |
312 | if ((len == 1) && (data[0] != (unsigned char)0xff) && (data[0] != 0x00)) | |
313 | warn("Weird byte 0x%02x", data[0]); | |
314 | else if (len == 4) | |
05f091ab | 315 | warn("Weird key %02x %02x %02x %02x", |
1da177e4 LT |
316 | data[0], data[1], data[2], data[3]); |
317 | else | |
318 | warn("Weird data, len=%d %02x %02x %02x %02x %02x %02x ...", | |
319 | len, data[0], data[1], data[2], data[3], data[4], data[5]); | |
320 | } | |
321 | ||
322 | /* | |
323 | * ati_remote_open | |
324 | */ | |
325 | static int ati_remote_open(struct input_dev *inputdev) | |
326 | { | |
7791bdae | 327 | struct ati_remote *ati_remote = input_get_drvdata(inputdev); |
1da177e4 LT |
328 | |
329 | /* On first open, submit the read urb which was set up previously. */ | |
330 | ati_remote->irq_urb->dev = ati_remote->udev; | |
331 | if (usb_submit_urb(ati_remote->irq_urb, GFP_KERNEL)) { | |
05f091ab | 332 | dev_err(&ati_remote->interface->dev, |
1da177e4 | 333 | "%s: usb_submit_urb failed!\n", __FUNCTION__); |
65cde54b | 334 | return -EIO; |
1da177e4 LT |
335 | } |
336 | ||
65cde54b | 337 | return 0; |
1da177e4 LT |
338 | } |
339 | ||
340 | /* | |
341 | * ati_remote_close | |
342 | */ | |
343 | static void ati_remote_close(struct input_dev *inputdev) | |
344 | { | |
7791bdae | 345 | struct ati_remote *ati_remote = input_get_drvdata(inputdev); |
05f091ab | 346 | |
65cde54b | 347 | usb_kill_urb(ati_remote->irq_urb); |
1da177e4 LT |
348 | } |
349 | ||
350 | /* | |
351 | * ati_remote_irq_out | |
352 | */ | |
7d12e780 | 353 | static void ati_remote_irq_out(struct urb *urb) |
1da177e4 LT |
354 | { |
355 | struct ati_remote *ati_remote = urb->context; | |
05f091ab | 356 | |
1da177e4 LT |
357 | if (urb->status) { |
358 | dev_dbg(&ati_remote->interface->dev, "%s: status %d\n", | |
359 | __FUNCTION__, urb->status); | |
360 | return; | |
361 | } | |
05f091ab | 362 | |
1da177e4 LT |
363 | ati_remote->send_flags |= SEND_FLAG_COMPLETE; |
364 | wmb(); | |
365 | wake_up(&ati_remote->wait); | |
366 | } | |
367 | ||
368 | /* | |
369 | * ati_remote_sendpacket | |
05f091ab | 370 | * |
1da177e4 LT |
371 | * Used to send device initialization strings |
372 | */ | |
373 | static int ati_remote_sendpacket(struct ati_remote *ati_remote, u16 cmd, unsigned char *data) | |
374 | { | |
375 | int retval = 0; | |
05f091ab | 376 | |
1da177e4 LT |
377 | /* Set up out_urb */ |
378 | memcpy(ati_remote->out_urb->transfer_buffer + 1, data, LO(cmd)); | |
05f091ab | 379 | ((char *) ati_remote->out_urb->transfer_buffer)[0] = HI(cmd); |
1da177e4 LT |
380 | |
381 | ati_remote->out_urb->transfer_buffer_length = LO(cmd) + 1; | |
382 | ati_remote->out_urb->dev = ati_remote->udev; | |
383 | ati_remote->send_flags = SEND_FLAG_IN_PROGRESS; | |
384 | ||
385 | retval = usb_submit_urb(ati_remote->out_urb, GFP_ATOMIC); | |
386 | if (retval) { | |
05f091ab | 387 | dev_dbg(&ati_remote->interface->dev, |
1da177e4 LT |
388 | "sendpacket: usb_submit_urb failed: %d\n", retval); |
389 | return retval; | |
390 | } | |
391 | ||
392 | wait_event_timeout(ati_remote->wait, | |
393 | ((ati_remote->out_urb->status != -EINPROGRESS) || | |
05f091ab | 394 | (ati_remote->send_flags & SEND_FLAG_COMPLETE)), |
1da177e4 LT |
395 | HZ); |
396 | usb_kill_urb(ati_remote->out_urb); | |
05f091ab | 397 | |
1da177e4 LT |
398 | return retval; |
399 | } | |
400 | ||
401 | /* | |
402 | * ati_remote_event_lookup | |
403 | */ | |
404 | static int ati_remote_event_lookup(int rem, unsigned char d1, unsigned char d2) | |
405 | { | |
406 | int i; | |
407 | ||
408 | for (i = 0; ati_remote_tbl[i].kind != KIND_END; i++) { | |
05f091ab DT |
409 | /* |
410 | * Decide if the table entry matches the remote input. | |
1da177e4 LT |
411 | */ |
412 | if ((((ati_remote_tbl[i].data1 & 0x0f) == (d1 & 0x0f))) && | |
05f091ab DT |
413 | ((((ati_remote_tbl[i].data1 >> 4) - |
414 | (d1 >> 4) + rem) & 0x0f) == 0x0f) && | |
1da177e4 LT |
415 | (ati_remote_tbl[i].data2 == d2)) |
416 | return i; | |
05f091ab | 417 | |
1da177e4 LT |
418 | } |
419 | return -1; | |
420 | } | |
421 | ||
2ffc1cca DT |
422 | /* |
423 | * ati_remote_compute_accel | |
424 | * | |
425 | * Implements acceleration curve for directional control pad | |
426 | * If elapsed time since last event is > 1/4 second, user "stopped", | |
427 | * so reset acceleration. Otherwise, user is probably holding the control | |
428 | * pad down, so we increase acceleration, ramping up over two seconds to | |
429 | * a maximum speed. | |
430 | */ | |
431 | static int ati_remote_compute_accel(struct ati_remote *ati_remote) | |
432 | { | |
433 | static const char accel[] = { 1, 2, 4, 6, 9, 13, 20 }; | |
434 | unsigned long now = jiffies; | |
435 | int acc; | |
436 | ||
437 | if (time_after(now, ati_remote->old_jiffies + msecs_to_jiffies(250))) { | |
438 | acc = 1; | |
439 | ati_remote->acc_jiffies = now; | |
440 | } | |
441 | else if (time_before(now, ati_remote->acc_jiffies + msecs_to_jiffies(125))) | |
442 | acc = accel[0]; | |
443 | else if (time_before(now, ati_remote->acc_jiffies + msecs_to_jiffies(250))) | |
444 | acc = accel[1]; | |
445 | else if (time_before(now, ati_remote->acc_jiffies + msecs_to_jiffies(500))) | |
446 | acc = accel[2]; | |
447 | else if (time_before(now, ati_remote->acc_jiffies + msecs_to_jiffies(1000))) | |
448 | acc = accel[3]; | |
449 | else if (time_before(now, ati_remote->acc_jiffies + msecs_to_jiffies(1500))) | |
450 | acc = accel[4]; | |
451 | else if (time_before(now, ati_remote->acc_jiffies + msecs_to_jiffies(2000))) | |
452 | acc = accel[5]; | |
453 | else | |
454 | acc = accel[6]; | |
455 | ||
456 | return acc; | |
457 | } | |
458 | ||
1da177e4 LT |
459 | /* |
460 | * ati_remote_report_input | |
461 | */ | |
7d12e780 | 462 | static void ati_remote_input_report(struct urb *urb) |
1da177e4 LT |
463 | { |
464 | struct ati_remote *ati_remote = urb->context; | |
465 | unsigned char *data= ati_remote->inbuf; | |
c5b7c7c3 | 466 | struct input_dev *dev = ati_remote->idev; |
1da177e4 LT |
467 | int index, acc; |
468 | int remote_num; | |
05f091ab | 469 | |
1da177e4 | 470 | /* Deal with strange looking inputs */ |
05f091ab | 471 | if ( (urb->actual_length != 4) || (data[0] != 0x14) || |
1da177e4 LT |
472 | ((data[3] & 0x0f) != 0x00) ) { |
473 | ati_remote_dump(data, urb->actual_length); | |
474 | return; | |
475 | } | |
476 | ||
477 | /* Mask unwanted remote channels. */ | |
478 | /* note: remote_num is 0-based, channel 1 on remote == 0 here */ | |
479 | remote_num = (data[3] >> 4) & 0x0f; | |
05f091ab | 480 | if (channel_mask & (1 << (remote_num + 1))) { |
1da177e4 LT |
481 | dbginfo(&ati_remote->interface->dev, |
482 | "Masked input from channel 0x%02x: data %02x,%02x, mask= 0x%02lx\n", | |
483 | remote_num, data[1], data[2], channel_mask); | |
484 | return; | |
485 | } | |
486 | ||
487 | /* Look up event code index in translation table */ | |
488 | index = ati_remote_event_lookup(remote_num, data[1], data[2]); | |
489 | if (index < 0) { | |
05f091ab DT |
490 | dev_warn(&ati_remote->interface->dev, |
491 | "Unknown input from channel 0x%02x: data %02x,%02x\n", | |
1da177e4 LT |
492 | remote_num, data[1], data[2]); |
493 | return; | |
05f091ab DT |
494 | } |
495 | dbginfo(&ati_remote->interface->dev, | |
1da177e4 LT |
496 | "channel 0x%02x; data %02x,%02x; index %d; keycode %d\n", |
497 | remote_num, data[1], data[2], index, ati_remote_tbl[index].code); | |
05f091ab | 498 | |
1da177e4 | 499 | if (ati_remote_tbl[index].kind == KIND_LITERAL) { |
1da177e4 LT |
500 | input_event(dev, ati_remote_tbl[index].type, |
501 | ati_remote_tbl[index].code, | |
502 | ati_remote_tbl[index].value); | |
503 | input_sync(dev); | |
05f091ab | 504 | |
1da177e4 LT |
505 | ati_remote->old_jiffies = jiffies; |
506 | return; | |
507 | } | |
05f091ab | 508 | |
1da177e4 | 509 | if (ati_remote_tbl[index].kind == KIND_FILTERED) { |
0de95509 KP |
510 | unsigned long now = jiffies; |
511 | ||
1da177e4 | 512 | /* Filter duplicate events which happen "too close" together. */ |
c6698697 EH |
513 | if (ati_remote->old_data[0] == data[1] && |
514 | ati_remote->old_data[1] == data[2] && | |
0de95509 KP |
515 | time_before(now, ati_remote->old_jiffies + |
516 | msecs_to_jiffies(repeat_filter))) { | |
1da177e4 | 517 | ati_remote->repeat_count++; |
05f091ab | 518 | } else { |
1da177e4 | 519 | ati_remote->repeat_count = 0; |
0de95509 | 520 | ati_remote->first_jiffies = now; |
1da177e4 | 521 | } |
05f091ab | 522 | |
1da177e4 LT |
523 | ati_remote->old_data[0] = data[1]; |
524 | ati_remote->old_data[1] = data[2]; | |
0de95509 | 525 | ati_remote->old_jiffies = now; |
1da177e4 | 526 | |
0de95509 KP |
527 | /* Ensure we skip at least the 4 first duplicate events (generated |
528 | * by a single keypress), and continue skipping until repeat_delay | |
529 | * msecs have passed | |
530 | */ | |
c6698697 | 531 | if (ati_remote->repeat_count > 0 && |
0de95509 KP |
532 | (ati_remote->repeat_count < 5 || |
533 | time_before(now, ati_remote->first_jiffies + | |
534 | msecs_to_jiffies(repeat_delay)))) | |
1da177e4 | 535 | return; |
05f091ab | 536 | |
1da177e4 | 537 | |
1da177e4 LT |
538 | input_event(dev, ati_remote_tbl[index].type, |
539 | ati_remote_tbl[index].code, 1); | |
c3c38fbd | 540 | input_sync(dev); |
1da177e4 LT |
541 | input_event(dev, ati_remote_tbl[index].type, |
542 | ati_remote_tbl[index].code, 0); | |
543 | input_sync(dev); | |
544 | ||
2ffc1cca | 545 | } else { |
05f091ab | 546 | |
2ffc1cca DT |
547 | /* |
548 | * Other event kinds are from the directional control pad, and have an | |
549 | * acceleration factor applied to them. Without this acceleration, the | |
550 | * control pad is mostly unusable. | |
551 | */ | |
552 | acc = ati_remote_compute_accel(ati_remote); | |
1da177e4 | 553 | |
2ffc1cca DT |
554 | switch (ati_remote_tbl[index].kind) { |
555 | case KIND_ACCEL: | |
556 | input_event(dev, ati_remote_tbl[index].type, | |
557 | ati_remote_tbl[index].code, | |
558 | ati_remote_tbl[index].value * acc); | |
559 | break; | |
560 | case KIND_LU: | |
561 | input_report_rel(dev, REL_X, -acc); | |
562 | input_report_rel(dev, REL_Y, -acc); | |
563 | break; | |
564 | case KIND_RU: | |
565 | input_report_rel(dev, REL_X, acc); | |
566 | input_report_rel(dev, REL_Y, -acc); | |
567 | break; | |
568 | case KIND_LD: | |
569 | input_report_rel(dev, REL_X, -acc); | |
570 | input_report_rel(dev, REL_Y, acc); | |
571 | break; | |
572 | case KIND_RD: | |
573 | input_report_rel(dev, REL_X, acc); | |
574 | input_report_rel(dev, REL_Y, acc); | |
575 | break; | |
576 | default: | |
577 | dev_dbg(&ati_remote->interface->dev, "ati_remote kind=%d\n", | |
578 | ati_remote_tbl[index].kind); | |
579 | } | |
580 | input_sync(dev); | |
581 | ||
582 | ati_remote->old_jiffies = jiffies; | |
583 | ati_remote->old_data[0] = data[1]; | |
584 | ati_remote->old_data[1] = data[2]; | |
585 | } | |
1da177e4 LT |
586 | } |
587 | ||
588 | /* | |
589 | * ati_remote_irq_in | |
590 | */ | |
7d12e780 | 591 | static void ati_remote_irq_in(struct urb *urb) |
1da177e4 LT |
592 | { |
593 | struct ati_remote *ati_remote = urb->context; | |
594 | int retval; | |
595 | ||
596 | switch (urb->status) { | |
597 | case 0: /* success */ | |
7d12e780 | 598 | ati_remote_input_report(urb); |
1da177e4 LT |
599 | break; |
600 | case -ECONNRESET: /* unlink */ | |
601 | case -ENOENT: | |
602 | case -ESHUTDOWN: | |
603 | dev_dbg(&ati_remote->interface->dev, "%s: urb error status, unlink? \n", | |
604 | __FUNCTION__); | |
05f091ab | 605 | return; |
1da177e4 | 606 | default: /* error */ |
05f091ab | 607 | dev_dbg(&ati_remote->interface->dev, "%s: Nonzero urb status %d\n", |
1da177e4 LT |
608 | __FUNCTION__, urb->status); |
609 | } | |
05f091ab | 610 | |
54e6ecb2 | 611 | retval = usb_submit_urb(urb, GFP_ATOMIC); |
1da177e4 LT |
612 | if (retval) |
613 | dev_err(&ati_remote->interface->dev, "%s: usb_submit_urb()=%d\n", | |
614 | __FUNCTION__, retval); | |
615 | } | |
616 | ||
617 | /* | |
c5b7c7c3 | 618 | * ati_remote_alloc_buffers |
1da177e4 | 619 | */ |
c5b7c7c3 DT |
620 | static int ati_remote_alloc_buffers(struct usb_device *udev, |
621 | struct ati_remote *ati_remote) | |
1da177e4 | 622 | { |
54e6ecb2 | 623 | ati_remote->inbuf = usb_buffer_alloc(udev, DATA_BUFSIZE, GFP_ATOMIC, |
c5b7c7c3 DT |
624 | &ati_remote->inbuf_dma); |
625 | if (!ati_remote->inbuf) | |
626 | return -1; | |
1da177e4 | 627 | |
54e6ecb2 | 628 | ati_remote->outbuf = usb_buffer_alloc(udev, DATA_BUFSIZE, GFP_ATOMIC, |
c5b7c7c3 DT |
629 | &ati_remote->outbuf_dma); |
630 | if (!ati_remote->outbuf) | |
631 | return -1; | |
1da177e4 | 632 | |
c5b7c7c3 DT |
633 | ati_remote->irq_urb = usb_alloc_urb(0, GFP_KERNEL); |
634 | if (!ati_remote->irq_urb) | |
635 | return -1; | |
1da177e4 | 636 | |
c5b7c7c3 DT |
637 | ati_remote->out_urb = usb_alloc_urb(0, GFP_KERNEL); |
638 | if (!ati_remote->out_urb) | |
639 | return -1; | |
05f091ab | 640 | |
c5b7c7c3 DT |
641 | return 0; |
642 | } | |
05f091ab | 643 | |
c5b7c7c3 DT |
644 | /* |
645 | * ati_remote_free_buffers | |
646 | */ | |
647 | static void ati_remote_free_buffers(struct ati_remote *ati_remote) | |
648 | { | |
459f836a MK |
649 | usb_free_urb(ati_remote->irq_urb); |
650 | usb_free_urb(ati_remote->out_urb); | |
1da177e4 | 651 | |
9dce447a MK |
652 | usb_buffer_free(ati_remote->udev, DATA_BUFSIZE, |
653 | ati_remote->inbuf, ati_remote->inbuf_dma); | |
c5b7c7c3 | 654 | |
9dce447a MK |
655 | usb_buffer_free(ati_remote->udev, DATA_BUFSIZE, |
656 | ati_remote->outbuf, ati_remote->outbuf_dma); | |
1da177e4 LT |
657 | } |
658 | ||
659 | static void ati_remote_input_init(struct ati_remote *ati_remote) | |
660 | { | |
c5b7c7c3 | 661 | struct input_dev *idev = ati_remote->idev; |
1da177e4 LT |
662 | int i; |
663 | ||
7b19ada2 JS |
664 | idev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL); |
665 | idev->keybit[BIT_WORD(BTN_MOUSE)] = BIT_MASK(BTN_LEFT) | | |
666 | BIT_MASK(BTN_RIGHT) | BIT_MASK(BTN_SIDE) | BIT_MASK(BTN_EXTRA); | |
667 | idev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y); | |
1da177e4 LT |
668 | for (i = 0; ati_remote_tbl[i].kind != KIND_END; i++) |
669 | if (ati_remote_tbl[i].type == EV_KEY) | |
670 | set_bit(ati_remote_tbl[i].code, idev->keybit); | |
05f091ab | 671 | |
7791bdae DT |
672 | input_set_drvdata(idev, ati_remote); |
673 | ||
1da177e4 LT |
674 | idev->open = ati_remote_open; |
675 | idev->close = ati_remote_close; | |
05f091ab | 676 | |
1da177e4 LT |
677 | idev->name = ati_remote->name; |
678 | idev->phys = ati_remote->phys; | |
05f091ab | 679 | |
16a334c0 | 680 | usb_to_input_id(ati_remote->udev, &idev->id); |
c0f82d57 | 681 | idev->dev.parent = &ati_remote->udev->dev; |
1da177e4 LT |
682 | } |
683 | ||
684 | static int ati_remote_initialize(struct ati_remote *ati_remote) | |
685 | { | |
686 | struct usb_device *udev = ati_remote->udev; | |
687 | int pipe, maxp; | |
05f091ab | 688 | |
1da177e4 LT |
689 | init_waitqueue_head(&ati_remote->wait); |
690 | ||
691 | /* Set up irq_urb */ | |
692 | pipe = usb_rcvintpipe(udev, ati_remote->endpoint_in->bEndpointAddress); | |
693 | maxp = usb_maxpacket(udev, pipe, usb_pipeout(pipe)); | |
694 | maxp = (maxp > DATA_BUFSIZE) ? DATA_BUFSIZE : maxp; | |
05f091ab DT |
695 | |
696 | usb_fill_int_urb(ati_remote->irq_urb, udev, pipe, ati_remote->inbuf, | |
697 | maxp, ati_remote_irq_in, ati_remote, | |
1da177e4 LT |
698 | ati_remote->endpoint_in->bInterval); |
699 | ati_remote->irq_urb->transfer_dma = ati_remote->inbuf_dma; | |
700 | ati_remote->irq_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; | |
05f091ab | 701 | |
1da177e4 LT |
702 | /* Set up out_urb */ |
703 | pipe = usb_sndintpipe(udev, ati_remote->endpoint_out->bEndpointAddress); | |
704 | maxp = usb_maxpacket(udev, pipe, usb_pipeout(pipe)); | |
705 | maxp = (maxp > DATA_BUFSIZE) ? DATA_BUFSIZE : maxp; | |
706 | ||
05f091ab DT |
707 | usb_fill_int_urb(ati_remote->out_urb, udev, pipe, ati_remote->outbuf, |
708 | maxp, ati_remote_irq_out, ati_remote, | |
1da177e4 LT |
709 | ati_remote->endpoint_out->bInterval); |
710 | ati_remote->out_urb->transfer_dma = ati_remote->outbuf_dma; | |
711 | ati_remote->out_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; | |
712 | ||
713 | /* send initialization strings */ | |
714 | if ((ati_remote_sendpacket(ati_remote, 0x8004, init1)) || | |
715 | (ati_remote_sendpacket(ati_remote, 0x8007, init2))) { | |
05f091ab | 716 | dev_err(&ati_remote->interface->dev, |
1da177e4 | 717 | "Initializing ati_remote hardware failed.\n"); |
c5b7c7c3 | 718 | return -EIO; |
1da177e4 | 719 | } |
05f091ab | 720 | |
1da177e4 LT |
721 | return 0; |
722 | } | |
723 | ||
724 | /* | |
725 | * ati_remote_probe | |
726 | */ | |
727 | static int ati_remote_probe(struct usb_interface *interface, const struct usb_device_id *id) | |
728 | { | |
729 | struct usb_device *udev = interface_to_usbdev(interface); | |
c5b7c7c3 DT |
730 | struct usb_host_interface *iface_host = interface->cur_altsetting; |
731 | struct usb_endpoint_descriptor *endpoint_in, *endpoint_out; | |
732 | struct ati_remote *ati_remote; | |
733 | struct input_dev *input_dev; | |
734 | int err = -ENOMEM; | |
1da177e4 | 735 | |
1da177e4 LT |
736 | if (iface_host->desc.bNumEndpoints != 2) { |
737 | err("%s: Unexpected desc.bNumEndpoints\n", __FUNCTION__); | |
c5b7c7c3 | 738 | return -ENODEV; |
1da177e4 LT |
739 | } |
740 | ||
c5b7c7c3 DT |
741 | endpoint_in = &iface_host->endpoint[0].desc; |
742 | endpoint_out = &iface_host->endpoint[1].desc; | |
1da177e4 | 743 | |
96642a2c LFC |
744 | if (!usb_endpoint_is_int_in(endpoint_in)) { |
745 | err("%s: Unexpected endpoint_in\n", __FUNCTION__); | |
c5b7c7c3 | 746 | return -ENODEV; |
1da177e4 | 747 | } |
c5b7c7c3 | 748 | if (le16_to_cpu(endpoint_in->wMaxPacketSize) == 0) { |
1da177e4 | 749 | err("%s: endpoint_in message size==0? \n", __FUNCTION__); |
c5b7c7c3 | 750 | return -ENODEV; |
1da177e4 LT |
751 | } |
752 | ||
c5b7c7c3 DT |
753 | ati_remote = kzalloc(sizeof (struct ati_remote), GFP_KERNEL); |
754 | input_dev = input_allocate_device(); | |
755 | if (!ati_remote || !input_dev) | |
756 | goto fail1; | |
1da177e4 | 757 | |
c5b7c7c3 DT |
758 | /* Allocate URB buffers, URBs */ |
759 | if (ati_remote_alloc_buffers(udev, ati_remote)) | |
760 | goto fail2; | |
1da177e4 | 761 | |
c5b7c7c3 DT |
762 | ati_remote->endpoint_in = endpoint_in; |
763 | ati_remote->endpoint_out = endpoint_out; | |
764 | ati_remote->udev = udev; | |
765 | ati_remote->idev = input_dev; | |
766 | ati_remote->interface = interface; | |
1da177e4 | 767 | |
c5b7c7c3 DT |
768 | usb_make_path(udev, ati_remote->phys, sizeof(ati_remote->phys)); |
769 | strlcpy(ati_remote->phys, "/input0", sizeof(ati_remote->phys)); | |
1da177e4 | 770 | |
1da177e4 | 771 | if (udev->manufacturer) |
c5b7c7c3 | 772 | strlcpy(ati_remote->name, udev->manufacturer, sizeof(ati_remote->name)); |
1da177e4 LT |
773 | |
774 | if (udev->product) | |
c5b7c7c3 DT |
775 | snprintf(ati_remote->name, sizeof(ati_remote->name), |
776 | "%s %s", ati_remote->name, udev->product); | |
1da177e4 LT |
777 | |
778 | if (!strlen(ati_remote->name)) | |
c5b7c7c3 DT |
779 | snprintf(ati_remote->name, sizeof(ati_remote->name), |
780 | DRIVER_DESC "(%04x,%04x)", | |
05f091ab | 781 | le16_to_cpu(ati_remote->udev->descriptor.idVendor), |
1da177e4 LT |
782 | le16_to_cpu(ati_remote->udev->descriptor.idProduct)); |
783 | ||
c5b7c7c3 DT |
784 | ati_remote_input_init(ati_remote); |
785 | ||
1da177e4 | 786 | /* Device Hardware Initialization - fills in ati_remote->idev from udev. */ |
c5b7c7c3 DT |
787 | err = ati_remote_initialize(ati_remote); |
788 | if (err) | |
789 | goto fail3; | |
1da177e4 LT |
790 | |
791 | /* Set up and register input device */ | |
5014186d DT |
792 | err = input_register_device(ati_remote->idev); |
793 | if (err) | |
794 | goto fail3; | |
1da177e4 LT |
795 | |
796 | usb_set_intfdata(interface, ati_remote); | |
c5b7c7c3 | 797 | return 0; |
05f091ab | 798 | |
5014186d | 799 | fail3: usb_kill_urb(ati_remote->irq_urb); |
c5b7c7c3 | 800 | usb_kill_urb(ati_remote->out_urb); |
5014186d DT |
801 | fail2: ati_remote_free_buffers(ati_remote); |
802 | fail1: input_free_device(input_dev); | |
c5b7c7c3 DT |
803 | kfree(ati_remote); |
804 | return err; | |
1da177e4 LT |
805 | } |
806 | ||
807 | /* | |
808 | * ati_remote_disconnect | |
809 | */ | |
810 | static void ati_remote_disconnect(struct usb_interface *interface) | |
811 | { | |
812 | struct ati_remote *ati_remote; | |
813 | ||
1da177e4 LT |
814 | ati_remote = usb_get_intfdata(interface); |
815 | usb_set_intfdata(interface, NULL); | |
816 | if (!ati_remote) { | |
817 | warn("%s - null device?\n", __FUNCTION__); | |
818 | return; | |
819 | } | |
05f091ab | 820 | |
c5b7c7c3 DT |
821 | usb_kill_urb(ati_remote->irq_urb); |
822 | usb_kill_urb(ati_remote->out_urb); | |
823 | input_unregister_device(ati_remote->idev); | |
824 | ati_remote_free_buffers(ati_remote); | |
825 | kfree(ati_remote); | |
1da177e4 LT |
826 | } |
827 | ||
828 | /* | |
829 | * ati_remote_init | |
830 | */ | |
831 | static int __init ati_remote_init(void) | |
832 | { | |
833 | int result; | |
05f091ab | 834 | |
1da177e4 LT |
835 | result = usb_register(&ati_remote_driver); |
836 | if (result) | |
837 | err("usb_register error #%d\n", result); | |
838 | else | |
839 | info("Registered USB driver " DRIVER_DESC " v. " DRIVER_VERSION); | |
840 | ||
841 | return result; | |
842 | } | |
843 | ||
844 | /* | |
845 | * ati_remote_exit | |
846 | */ | |
847 | static void __exit ati_remote_exit(void) | |
848 | { | |
849 | usb_deregister(&ati_remote_driver); | |
850 | } | |
851 | ||
05f091ab DT |
852 | /* |
853 | * module specification | |
1da177e4 LT |
854 | */ |
855 | ||
856 | module_init(ati_remote_init); | |
857 | module_exit(ati_remote_exit); | |
858 | ||
859 | MODULE_AUTHOR(DRIVER_AUTHOR); | |
860 | MODULE_DESCRIPTION(DRIVER_DESC); | |
861 | MODULE_LICENSE("GPL"); |