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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 | ||
88 | #include <linux/config.h> | |
89 | #include <linux/kernel.h> | |
90 | #include <linux/errno.h> | |
91 | #include <linux/init.h> | |
92 | #include <linux/slab.h> | |
93 | #include <linux/module.h> | |
94 | #include <linux/moduleparam.h> | |
95 | #include <linux/input.h> | |
96 | #include <linux/usb.h> | |
16a334c0 | 97 | #include <linux/usb_input.h> |
1da177e4 LT |
98 | #include <linux/wait.h> |
99 | ||
100 | /* | |
101 | * Module and Version Information, Module Parameters | |
102 | */ | |
05f091ab DT |
103 | |
104 | #define ATI_REMOTE_VENDOR_ID 0x0bc7 | |
105 | #define ATI_REMOTE_PRODUCT_ID 0x004 | |
106 | #define LOLA_REMOTE_PRODUCT_ID 0x002 | |
1da177e4 LT |
107 | #define MEDION_REMOTE_PRODUCT_ID 0x006 |
108 | ||
05f091ab | 109 | #define DRIVER_VERSION "2.2.1" |
1da177e4 LT |
110 | #define DRIVER_AUTHOR "Torrey Hoffman <thoffman@arnor.net>" |
111 | #define DRIVER_DESC "ATI/X10 RF USB Remote Control" | |
112 | ||
113 | #define NAME_BUFSIZE 80 /* size of product name, path buffers */ | |
114 | #define DATA_BUFSIZE 63 /* size of URB data buffers */ | |
115 | #define ATI_INPUTNUM 1 /* Which input device to register as */ | |
116 | ||
65cde54b | 117 | static unsigned long channel_mask; |
1da177e4 LT |
118 | module_param(channel_mask, ulong, 0444); |
119 | MODULE_PARM_DESC(channel_mask, "Bitmask of remote control channels to ignore"); | |
120 | ||
65cde54b | 121 | static int debug; |
1da177e4 LT |
122 | module_param(debug, int, 0444); |
123 | MODULE_PARM_DESC(debug, "Enable extra debug messages and information"); | |
124 | ||
125 | #define dbginfo(dev, format, arg...) do { if (debug) dev_info(dev , format , ## arg); } while (0) | |
126 | #undef err | |
127 | #define err(format, arg...) printk(KERN_ERR format , ## arg) | |
05f091ab | 128 | |
1da177e4 LT |
129 | static struct usb_device_id ati_remote_table[] = { |
130 | { USB_DEVICE(ATI_REMOTE_VENDOR_ID, ATI_REMOTE_PRODUCT_ID) }, | |
131 | { USB_DEVICE(ATI_REMOTE_VENDOR_ID, LOLA_REMOTE_PRODUCT_ID) }, | |
132 | { USB_DEVICE(ATI_REMOTE_VENDOR_ID, MEDION_REMOTE_PRODUCT_ID) }, | |
133 | {} /* Terminating entry */ | |
134 | }; | |
135 | ||
136 | MODULE_DEVICE_TABLE(usb, ati_remote_table); | |
137 | ||
138 | /* Get hi and low bytes of a 16-bits int */ | |
139 | #define HI(a) ((unsigned char)((a) >> 8)) | |
140 | #define LO(a) ((unsigned char)((a) & 0xff)) | |
141 | ||
142 | #define SEND_FLAG_IN_PROGRESS 1 | |
143 | #define SEND_FLAG_COMPLETE 2 | |
144 | ||
145 | /* Device initialization strings */ | |
146 | static char init1[] = { 0x01, 0x00, 0x20, 0x14 }; | |
147 | static char init2[] = { 0x01, 0x00, 0x20, 0x14, 0x20, 0x20, 0x20 }; | |
148 | ||
149 | /* Acceleration curve for directional control pad */ | |
150 | static char accel[] = { 1, 2, 4, 6, 9, 13, 20 }; | |
151 | ||
05f091ab | 152 | /* Duplicate event filtering time. |
1da177e4 LT |
153 | * Sequential, identical KIND_FILTERED inputs with less than |
154 | * FILTER_TIME jiffies between them are considered as repeat | |
155 | * events. The hardware generates 5 events for the first keypress | |
156 | * and we have to take this into account for an accurate repeat | |
157 | * behaviour. | |
158 | * (HZ / 20) == 50 ms and works well for me. | |
159 | */ | |
160 | #define FILTER_TIME (HZ / 20) | |
161 | ||
162 | static DECLARE_MUTEX(disconnect_sem); | |
163 | ||
164 | struct ati_remote { | |
05f091ab | 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 */ | |
181 | unsigned int repeat_count; | |
05f091ab | 182 | |
1da177e4 LT |
183 | char name[NAME_BUFSIZE]; |
184 | char phys[NAME_BUFSIZE]; | |
185 | ||
186 | wait_queue_head_t wait; | |
187 | int send_flags; | |
188 | }; | |
189 | ||
190 | /* "Kinds" of messages sent from the hardware to the driver. */ | |
191 | #define KIND_END 0 | |
192 | #define KIND_LITERAL 1 /* Simply pass to input system */ | |
193 | #define KIND_FILTERED 2 /* Add artificial key-up events, drop keyrepeats */ | |
194 | #define KIND_LU 3 /* Directional keypad diagonals - left up, */ | |
195 | #define KIND_RU 4 /* right up, */ | |
196 | #define KIND_LD 5 /* left down, */ | |
197 | #define KIND_RD 6 /* right down */ | |
198 | #define KIND_ACCEL 7 /* Directional keypad - left, right, up, down.*/ | |
199 | ||
200 | /* Translation table from hardware messages to input events. */ | |
201 | static struct | |
202 | { | |
203 | short kind; | |
204 | unsigned char data1, data2; | |
205 | int type; | |
206 | unsigned int code; | |
207 | int value; | |
05f091ab | 208 | } ati_remote_tbl[] = |
1da177e4 LT |
209 | { |
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); | |
289 | static void ati_remote_delete (struct ati_remote *dev); | |
290 | static int ati_remote_open (struct input_dev *inputdev); | |
291 | static void ati_remote_close (struct input_dev *inputdev); | |
292 | static int ati_remote_sendpacket (struct ati_remote *ati_remote, u16 cmd, unsigned char *data); | |
293 | static void ati_remote_irq_out (struct urb *urb, struct pt_regs *regs); | |
294 | static void ati_remote_irq_in (struct urb *urb, struct pt_regs *regs); | |
295 | static void ati_remote_input_report (struct urb *urb, struct pt_regs *regs); | |
296 | static int ati_remote_initialize (struct ati_remote *ati_remote); | |
297 | static int ati_remote_probe (struct usb_interface *interface, const struct usb_device_id *id); | |
298 | static void ati_remote_disconnect (struct usb_interface *interface); | |
299 | ||
300 | /* usb specific object to register with the usb subsystem */ | |
301 | static struct usb_driver ati_remote_driver = { | |
302 | .owner = THIS_MODULE, | |
303 | .name = "ati_remote", | |
304 | .probe = ati_remote_probe, | |
305 | .disconnect = ati_remote_disconnect, | |
306 | .id_table = ati_remote_table, | |
307 | }; | |
308 | ||
309 | /* | |
310 | * ati_remote_dump_input | |
311 | */ | |
312 | static void ati_remote_dump(unsigned char *data, unsigned int len) | |
313 | { | |
314 | if ((len == 1) && (data[0] != (unsigned char)0xff) && (data[0] != 0x00)) | |
315 | warn("Weird byte 0x%02x", data[0]); | |
316 | else if (len == 4) | |
05f091ab | 317 | warn("Weird key %02x %02x %02x %02x", |
1da177e4 LT |
318 | data[0], data[1], data[2], data[3]); |
319 | else | |
320 | warn("Weird data, len=%d %02x %02x %02x %02x %02x %02x ...", | |
321 | len, data[0], data[1], data[2], data[3], data[4], data[5]); | |
322 | } | |
323 | ||
324 | /* | |
325 | * ati_remote_open | |
326 | */ | |
327 | static int ati_remote_open(struct input_dev *inputdev) | |
328 | { | |
329 | struct ati_remote *ati_remote = inputdev->private; | |
1da177e4 LT |
330 | |
331 | /* On first open, submit the read urb which was set up previously. */ | |
332 | ati_remote->irq_urb->dev = ati_remote->udev; | |
333 | if (usb_submit_urb(ati_remote->irq_urb, GFP_KERNEL)) { | |
05f091ab | 334 | dev_err(&ati_remote->interface->dev, |
1da177e4 | 335 | "%s: usb_submit_urb failed!\n", __FUNCTION__); |
65cde54b | 336 | return -EIO; |
1da177e4 LT |
337 | } |
338 | ||
65cde54b | 339 | return 0; |
1da177e4 LT |
340 | } |
341 | ||
342 | /* | |
343 | * ati_remote_close | |
344 | */ | |
345 | static void ati_remote_close(struct input_dev *inputdev) | |
346 | { | |
347 | struct ati_remote *ati_remote = inputdev->private; | |
05f091ab | 348 | |
65cde54b | 349 | usb_kill_urb(ati_remote->irq_urb); |
1da177e4 LT |
350 | } |
351 | ||
352 | /* | |
353 | * ati_remote_irq_out | |
354 | */ | |
355 | static void ati_remote_irq_out(struct urb *urb, struct pt_regs *regs) | |
356 | { | |
357 | struct ati_remote *ati_remote = urb->context; | |
05f091ab | 358 | |
1da177e4 LT |
359 | if (urb->status) { |
360 | dev_dbg(&ati_remote->interface->dev, "%s: status %d\n", | |
361 | __FUNCTION__, urb->status); | |
362 | return; | |
363 | } | |
05f091ab | 364 | |
1da177e4 LT |
365 | ati_remote->send_flags |= SEND_FLAG_COMPLETE; |
366 | wmb(); | |
367 | wake_up(&ati_remote->wait); | |
368 | } | |
369 | ||
370 | /* | |
371 | * ati_remote_sendpacket | |
05f091ab | 372 | * |
1da177e4 LT |
373 | * Used to send device initialization strings |
374 | */ | |
375 | static int ati_remote_sendpacket(struct ati_remote *ati_remote, u16 cmd, unsigned char *data) | |
376 | { | |
377 | int retval = 0; | |
05f091ab | 378 | |
1da177e4 LT |
379 | /* Set up out_urb */ |
380 | memcpy(ati_remote->out_urb->transfer_buffer + 1, data, LO(cmd)); | |
05f091ab | 381 | ((char *) ati_remote->out_urb->transfer_buffer)[0] = HI(cmd); |
1da177e4 LT |
382 | |
383 | ati_remote->out_urb->transfer_buffer_length = LO(cmd) + 1; | |
384 | ati_remote->out_urb->dev = ati_remote->udev; | |
385 | ati_remote->send_flags = SEND_FLAG_IN_PROGRESS; | |
386 | ||
387 | retval = usb_submit_urb(ati_remote->out_urb, GFP_ATOMIC); | |
388 | if (retval) { | |
05f091ab | 389 | dev_dbg(&ati_remote->interface->dev, |
1da177e4 LT |
390 | "sendpacket: usb_submit_urb failed: %d\n", retval); |
391 | return retval; | |
392 | } | |
393 | ||
394 | wait_event_timeout(ati_remote->wait, | |
395 | ((ati_remote->out_urb->status != -EINPROGRESS) || | |
05f091ab | 396 | (ati_remote->send_flags & SEND_FLAG_COMPLETE)), |
1da177e4 LT |
397 | HZ); |
398 | usb_kill_urb(ati_remote->out_urb); | |
05f091ab | 399 | |
1da177e4 LT |
400 | return retval; |
401 | } | |
402 | ||
403 | /* | |
404 | * ati_remote_event_lookup | |
405 | */ | |
406 | static int ati_remote_event_lookup(int rem, unsigned char d1, unsigned char d2) | |
407 | { | |
408 | int i; | |
409 | ||
410 | for (i = 0; ati_remote_tbl[i].kind != KIND_END; i++) { | |
05f091ab DT |
411 | /* |
412 | * Decide if the table entry matches the remote input. | |
1da177e4 LT |
413 | */ |
414 | if ((((ati_remote_tbl[i].data1 & 0x0f) == (d1 & 0x0f))) && | |
05f091ab DT |
415 | ((((ati_remote_tbl[i].data1 >> 4) - |
416 | (d1 >> 4) + rem) & 0x0f) == 0x0f) && | |
1da177e4 LT |
417 | (ati_remote_tbl[i].data2 == d2)) |
418 | return i; | |
05f091ab | 419 | |
1da177e4 LT |
420 | } |
421 | return -1; | |
422 | } | |
423 | ||
424 | /* | |
425 | * ati_remote_report_input | |
426 | */ | |
05f091ab | 427 | static void ati_remote_input_report(struct urb *urb, struct pt_regs *regs) |
1da177e4 LT |
428 | { |
429 | struct ati_remote *ati_remote = urb->context; | |
430 | unsigned char *data= ati_remote->inbuf; | |
05f091ab | 431 | struct input_dev *dev = &ati_remote->idev; |
1da177e4 LT |
432 | int index, acc; |
433 | int remote_num; | |
05f091ab | 434 | |
1da177e4 | 435 | /* Deal with strange looking inputs */ |
05f091ab | 436 | if ( (urb->actual_length != 4) || (data[0] != 0x14) || |
1da177e4 LT |
437 | ((data[3] & 0x0f) != 0x00) ) { |
438 | ati_remote_dump(data, urb->actual_length); | |
439 | return; | |
440 | } | |
441 | ||
442 | /* Mask unwanted remote channels. */ | |
443 | /* note: remote_num is 0-based, channel 1 on remote == 0 here */ | |
444 | remote_num = (data[3] >> 4) & 0x0f; | |
05f091ab | 445 | if (channel_mask & (1 << (remote_num + 1))) { |
1da177e4 LT |
446 | dbginfo(&ati_remote->interface->dev, |
447 | "Masked input from channel 0x%02x: data %02x,%02x, mask= 0x%02lx\n", | |
448 | remote_num, data[1], data[2], channel_mask); | |
449 | return; | |
450 | } | |
451 | ||
452 | /* Look up event code index in translation table */ | |
453 | index = ati_remote_event_lookup(remote_num, data[1], data[2]); | |
454 | if (index < 0) { | |
05f091ab DT |
455 | dev_warn(&ati_remote->interface->dev, |
456 | "Unknown input from channel 0x%02x: data %02x,%02x\n", | |
1da177e4 LT |
457 | remote_num, data[1], data[2]); |
458 | return; | |
05f091ab DT |
459 | } |
460 | dbginfo(&ati_remote->interface->dev, | |
1da177e4 LT |
461 | "channel 0x%02x; data %02x,%02x; index %d; keycode %d\n", |
462 | remote_num, data[1], data[2], index, ati_remote_tbl[index].code); | |
05f091ab | 463 | |
1da177e4 LT |
464 | if (ati_remote_tbl[index].kind == KIND_LITERAL) { |
465 | input_regs(dev, regs); | |
466 | input_event(dev, ati_remote_tbl[index].type, | |
467 | ati_remote_tbl[index].code, | |
468 | ati_remote_tbl[index].value); | |
469 | input_sync(dev); | |
05f091ab | 470 | |
1da177e4 LT |
471 | ati_remote->old_jiffies = jiffies; |
472 | return; | |
473 | } | |
05f091ab | 474 | |
1da177e4 LT |
475 | if (ati_remote_tbl[index].kind == KIND_FILTERED) { |
476 | /* Filter duplicate events which happen "too close" together. */ | |
05f091ab DT |
477 | if ((ati_remote->old_data[0] == data[1]) && |
478 | (ati_remote->old_data[1] == data[2]) && | |
479 | ((ati_remote->old_jiffies + FILTER_TIME) > jiffies)) { | |
1da177e4 | 480 | ati_remote->repeat_count++; |
05f091ab | 481 | } else { |
1da177e4 LT |
482 | ati_remote->repeat_count = 0; |
483 | } | |
05f091ab | 484 | |
1da177e4 LT |
485 | ati_remote->old_data[0] = data[1]; |
486 | ati_remote->old_data[1] = data[2]; | |
487 | ati_remote->old_jiffies = jiffies; | |
488 | ||
489 | if ((ati_remote->repeat_count > 0) | |
490 | && (ati_remote->repeat_count < 5)) | |
491 | return; | |
05f091ab | 492 | |
1da177e4 LT |
493 | |
494 | input_regs(dev, regs); | |
495 | input_event(dev, ati_remote_tbl[index].type, | |
496 | ati_remote_tbl[index].code, 1); | |
497 | input_event(dev, ati_remote_tbl[index].type, | |
498 | ati_remote_tbl[index].code, 0); | |
499 | input_sync(dev); | |
500 | ||
501 | return; | |
05f091ab DT |
502 | } |
503 | ||
504 | /* | |
1da177e4 LT |
505 | * Other event kinds are from the directional control pad, and have an |
506 | * acceleration factor applied to them. Without this acceleration, the | |
507 | * control pad is mostly unusable. | |
05f091ab | 508 | * |
1da177e4 LT |
509 | * If elapsed time since last event is > 1/4 second, user "stopped", |
510 | * so reset acceleration. Otherwise, user is probably holding the control | |
511 | * pad down, so we increase acceleration, ramping up over two seconds to | |
512 | * a maximum speed. The acceleration curve is #defined above. | |
513 | */ | |
514 | if ((jiffies - ati_remote->old_jiffies) > (HZ >> 2)) { | |
515 | acc = 1; | |
516 | ati_remote->acc_jiffies = jiffies; | |
517 | } | |
518 | else if ((jiffies - ati_remote->acc_jiffies) < (HZ >> 3)) acc = accel[0]; | |
519 | else if ((jiffies - ati_remote->acc_jiffies) < (HZ >> 2)) acc = accel[1]; | |
520 | else if ((jiffies - ati_remote->acc_jiffies) < (HZ >> 1)) acc = accel[2]; | |
521 | else if ((jiffies - ati_remote->acc_jiffies) < HZ ) acc = accel[3]; | |
522 | else if ((jiffies - ati_remote->acc_jiffies) < HZ+(HZ>>1)) acc = accel[4]; | |
523 | else if ((jiffies - ati_remote->acc_jiffies) < (HZ << 1)) acc = accel[5]; | |
524 | else acc = accel[6]; | |
525 | ||
526 | input_regs(dev, regs); | |
527 | switch (ati_remote_tbl[index].kind) { | |
528 | case KIND_ACCEL: | |
529 | input_event(dev, ati_remote_tbl[index].type, | |
530 | ati_remote_tbl[index].code, | |
531 | ati_remote_tbl[index].value * acc); | |
532 | break; | |
533 | case KIND_LU: | |
534 | input_report_rel(dev, REL_X, -acc); | |
535 | input_report_rel(dev, REL_Y, -acc); | |
536 | break; | |
537 | case KIND_RU: | |
538 | input_report_rel(dev, REL_X, acc); | |
539 | input_report_rel(dev, REL_Y, -acc); | |
540 | break; | |
541 | case KIND_LD: | |
542 | input_report_rel(dev, REL_X, -acc); | |
543 | input_report_rel(dev, REL_Y, acc); | |
544 | break; | |
545 | case KIND_RD: | |
546 | input_report_rel(dev, REL_X, acc); | |
547 | input_report_rel(dev, REL_Y, acc); | |
548 | break; | |
549 | default: | |
05f091ab | 550 | dev_dbg(&ati_remote->interface->dev, "ati_remote kind=%d\n", |
1da177e4 LT |
551 | ati_remote_tbl[index].kind); |
552 | } | |
553 | input_sync(dev); | |
554 | ||
555 | ati_remote->old_jiffies = jiffies; | |
556 | ati_remote->old_data[0] = data[1]; | |
557 | ati_remote->old_data[1] = data[2]; | |
558 | } | |
559 | ||
560 | /* | |
561 | * ati_remote_irq_in | |
562 | */ | |
563 | static void ati_remote_irq_in(struct urb *urb, struct pt_regs *regs) | |
564 | { | |
565 | struct ati_remote *ati_remote = urb->context; | |
566 | int retval; | |
567 | ||
568 | switch (urb->status) { | |
569 | case 0: /* success */ | |
570 | ati_remote_input_report(urb, regs); | |
571 | break; | |
572 | case -ECONNRESET: /* unlink */ | |
573 | case -ENOENT: | |
574 | case -ESHUTDOWN: | |
575 | dev_dbg(&ati_remote->interface->dev, "%s: urb error status, unlink? \n", | |
576 | __FUNCTION__); | |
05f091ab | 577 | return; |
1da177e4 | 578 | default: /* error */ |
05f091ab | 579 | dev_dbg(&ati_remote->interface->dev, "%s: Nonzero urb status %d\n", |
1da177e4 LT |
580 | __FUNCTION__, urb->status); |
581 | } | |
05f091ab | 582 | |
1da177e4 LT |
583 | retval = usb_submit_urb(urb, SLAB_ATOMIC); |
584 | if (retval) | |
585 | dev_err(&ati_remote->interface->dev, "%s: usb_submit_urb()=%d\n", | |
586 | __FUNCTION__, retval); | |
587 | } | |
588 | ||
589 | /* | |
590 | * ati_remote_delete | |
591 | */ | |
592 | static void ati_remote_delete(struct ati_remote *ati_remote) | |
593 | { | |
1da177e4 LT |
594 | if (ati_remote->irq_urb) |
595 | usb_kill_urb(ati_remote->irq_urb); | |
596 | ||
597 | if (ati_remote->out_urb) | |
598 | usb_kill_urb(ati_remote->out_urb); | |
599 | ||
600 | input_unregister_device(&ati_remote->idev); | |
601 | ||
602 | if (ati_remote->inbuf) | |
05f091ab | 603 | usb_buffer_free(ati_remote->udev, DATA_BUFSIZE, |
1da177e4 | 604 | ati_remote->inbuf, ati_remote->inbuf_dma); |
05f091ab | 605 | |
1da177e4 | 606 | if (ati_remote->outbuf) |
05f091ab | 607 | usb_buffer_free(ati_remote->udev, DATA_BUFSIZE, |
9719b0c2 | 608 | ati_remote->outbuf, ati_remote->outbuf_dma); |
05f091ab | 609 | |
1da177e4 LT |
610 | if (ati_remote->irq_urb) |
611 | usb_free_urb(ati_remote->irq_urb); | |
05f091ab | 612 | |
1da177e4 LT |
613 | if (ati_remote->out_urb) |
614 | usb_free_urb(ati_remote->out_urb); | |
615 | ||
616 | kfree(ati_remote); | |
617 | } | |
618 | ||
619 | static void ati_remote_input_init(struct ati_remote *ati_remote) | |
620 | { | |
621 | struct input_dev *idev = &(ati_remote->idev); | |
622 | int i; | |
623 | ||
624 | idev->evbit[0] = BIT(EV_KEY) | BIT(EV_REL); | |
05f091ab | 625 | idev->keybit[LONG(BTN_MOUSE)] = ( BIT(BTN_LEFT) | BIT(BTN_RIGHT) | |
1da177e4 LT |
626 | BIT(BTN_SIDE) | BIT(BTN_EXTRA) ); |
627 | idev->relbit[0] = BIT(REL_X) | BIT(REL_Y); | |
628 | for (i = 0; ati_remote_tbl[i].kind != KIND_END; i++) | |
629 | if (ati_remote_tbl[i].type == EV_KEY) | |
630 | set_bit(ati_remote_tbl[i].code, idev->keybit); | |
05f091ab | 631 | |
1da177e4 LT |
632 | idev->private = ati_remote; |
633 | idev->open = ati_remote_open; | |
634 | idev->close = ati_remote_close; | |
05f091ab | 635 | |
1da177e4 LT |
636 | idev->name = ati_remote->name; |
637 | idev->phys = ati_remote->phys; | |
05f091ab | 638 | |
16a334c0 DT |
639 | usb_to_input_id(ati_remote->udev, &idev->id); |
640 | idev->dev = &ati_remote->udev->dev; | |
1da177e4 LT |
641 | } |
642 | ||
643 | static int ati_remote_initialize(struct ati_remote *ati_remote) | |
644 | { | |
645 | struct usb_device *udev = ati_remote->udev; | |
646 | int pipe, maxp; | |
05f091ab | 647 | |
1da177e4 LT |
648 | init_waitqueue_head(&ati_remote->wait); |
649 | ||
650 | /* Set up irq_urb */ | |
651 | pipe = usb_rcvintpipe(udev, ati_remote->endpoint_in->bEndpointAddress); | |
652 | maxp = usb_maxpacket(udev, pipe, usb_pipeout(pipe)); | |
653 | maxp = (maxp > DATA_BUFSIZE) ? DATA_BUFSIZE : maxp; | |
05f091ab DT |
654 | |
655 | usb_fill_int_urb(ati_remote->irq_urb, udev, pipe, ati_remote->inbuf, | |
656 | maxp, ati_remote_irq_in, ati_remote, | |
1da177e4 LT |
657 | ati_remote->endpoint_in->bInterval); |
658 | ati_remote->irq_urb->transfer_dma = ati_remote->inbuf_dma; | |
659 | ati_remote->irq_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; | |
05f091ab | 660 | |
1da177e4 LT |
661 | /* Set up out_urb */ |
662 | pipe = usb_sndintpipe(udev, ati_remote->endpoint_out->bEndpointAddress); | |
663 | maxp = usb_maxpacket(udev, pipe, usb_pipeout(pipe)); | |
664 | maxp = (maxp > DATA_BUFSIZE) ? DATA_BUFSIZE : maxp; | |
665 | ||
05f091ab DT |
666 | usb_fill_int_urb(ati_remote->out_urb, udev, pipe, ati_remote->outbuf, |
667 | maxp, ati_remote_irq_out, ati_remote, | |
1da177e4 LT |
668 | ati_remote->endpoint_out->bInterval); |
669 | ati_remote->out_urb->transfer_dma = ati_remote->outbuf_dma; | |
670 | ati_remote->out_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; | |
671 | ||
672 | /* send initialization strings */ | |
673 | if ((ati_remote_sendpacket(ati_remote, 0x8004, init1)) || | |
674 | (ati_remote_sendpacket(ati_remote, 0x8007, init2))) { | |
05f091ab | 675 | dev_err(&ati_remote->interface->dev, |
1da177e4 LT |
676 | "Initializing ati_remote hardware failed.\n"); |
677 | return 1; | |
678 | } | |
05f091ab | 679 | |
1da177e4 LT |
680 | return 0; |
681 | } | |
682 | ||
683 | /* | |
684 | * ati_remote_probe | |
685 | */ | |
686 | static int ati_remote_probe(struct usb_interface *interface, const struct usb_device_id *id) | |
687 | { | |
688 | struct usb_device *udev = interface_to_usbdev(interface); | |
689 | struct ati_remote *ati_remote = NULL; | |
690 | struct usb_host_interface *iface_host; | |
691 | int retval = -ENOMEM; | |
692 | char path[64]; | |
693 | ||
694 | /* Allocate and clear an ati_remote struct */ | |
695 | if (!(ati_remote = kmalloc(sizeof (struct ati_remote), GFP_KERNEL))) | |
696 | return -ENOMEM; | |
697 | memset(ati_remote, 0x00, sizeof (struct ati_remote)); | |
698 | ||
699 | iface_host = interface->cur_altsetting; | |
700 | if (iface_host->desc.bNumEndpoints != 2) { | |
701 | err("%s: Unexpected desc.bNumEndpoints\n", __FUNCTION__); | |
702 | retval = -ENODEV; | |
703 | goto error; | |
704 | } | |
705 | ||
706 | ati_remote->endpoint_in = &(iface_host->endpoint[0].desc); | |
707 | ati_remote->endpoint_out = &(iface_host->endpoint[1].desc); | |
708 | ati_remote->udev = udev; | |
709 | ati_remote->interface = interface; | |
710 | ||
711 | if (!(ati_remote->endpoint_in->bEndpointAddress & 0x80)) { | |
712 | err("%s: Unexpected endpoint_in->bEndpointAddress\n", __FUNCTION__); | |
713 | retval = -ENODEV; | |
714 | goto error; | |
715 | } | |
716 | if ((ati_remote->endpoint_in->bmAttributes & 3) != 3) { | |
717 | err("%s: Unexpected endpoint_in->bmAttributes\n", __FUNCTION__); | |
718 | retval = -ENODEV; | |
719 | goto error; | |
720 | } | |
721 | if (le16_to_cpu(ati_remote->endpoint_in->wMaxPacketSize) == 0) { | |
722 | err("%s: endpoint_in message size==0? \n", __FUNCTION__); | |
723 | retval = -ENODEV; | |
724 | goto error; | |
725 | } | |
726 | ||
727 | /* Allocate URB buffers, URBs */ | |
728 | ati_remote->inbuf = usb_buffer_alloc(udev, DATA_BUFSIZE, SLAB_ATOMIC, | |
729 | &ati_remote->inbuf_dma); | |
730 | if (!ati_remote->inbuf) | |
731 | goto error; | |
732 | ||
733 | ati_remote->outbuf = usb_buffer_alloc(udev, DATA_BUFSIZE, SLAB_ATOMIC, | |
734 | &ati_remote->outbuf_dma); | |
735 | if (!ati_remote->outbuf) | |
736 | goto error; | |
737 | ||
738 | ati_remote->irq_urb = usb_alloc_urb(0, GFP_KERNEL); | |
739 | if (!ati_remote->irq_urb) | |
740 | goto error; | |
741 | ||
742 | ati_remote->out_urb = usb_alloc_urb(0, GFP_KERNEL); | |
743 | if (!ati_remote->out_urb) | |
744 | goto error; | |
745 | ||
746 | usb_make_path(udev, path, NAME_BUFSIZE); | |
747 | sprintf(ati_remote->phys, "%s/input%d", path, ATI_INPUTNUM); | |
748 | if (udev->manufacturer) | |
749 | strcat(ati_remote->name, udev->manufacturer); | |
750 | ||
751 | if (udev->product) | |
752 | sprintf(ati_remote->name, "%s %s", ati_remote->name, udev->product); | |
753 | ||
754 | if (!strlen(ati_remote->name)) | |
755 | sprintf(ati_remote->name, DRIVER_DESC "(%04x,%04x)", | |
05f091ab | 756 | le16_to_cpu(ati_remote->udev->descriptor.idVendor), |
1da177e4 LT |
757 | le16_to_cpu(ati_remote->udev->descriptor.idProduct)); |
758 | ||
759 | /* Device Hardware Initialization - fills in ati_remote->idev from udev. */ | |
760 | retval = ati_remote_initialize(ati_remote); | |
761 | if (retval) | |
762 | goto error; | |
763 | ||
764 | /* Set up and register input device */ | |
765 | ati_remote_input_init(ati_remote); | |
766 | input_register_device(&ati_remote->idev); | |
767 | ||
05f091ab | 768 | dev_info(&ati_remote->interface->dev, "Input registered: %s on %s\n", |
1da177e4 LT |
769 | ati_remote->name, path); |
770 | ||
771 | usb_set_intfdata(interface, ati_remote); | |
05f091ab | 772 | |
1da177e4 LT |
773 | error: |
774 | if (retval) | |
775 | ati_remote_delete(ati_remote); | |
776 | ||
777 | return retval; | |
778 | } | |
779 | ||
780 | /* | |
781 | * ati_remote_disconnect | |
782 | */ | |
783 | static void ati_remote_disconnect(struct usb_interface *interface) | |
784 | { | |
785 | struct ati_remote *ati_remote; | |
786 | ||
1da177e4 LT |
787 | ati_remote = usb_get_intfdata(interface); |
788 | usb_set_intfdata(interface, NULL); | |
789 | if (!ati_remote) { | |
790 | warn("%s - null device?\n", __FUNCTION__); | |
791 | return; | |
792 | } | |
05f091ab | 793 | |
1da177e4 | 794 | ati_remote_delete(ati_remote); |
1da177e4 LT |
795 | } |
796 | ||
797 | /* | |
798 | * ati_remote_init | |
799 | */ | |
800 | static int __init ati_remote_init(void) | |
801 | { | |
802 | int result; | |
05f091ab | 803 | |
1da177e4 LT |
804 | result = usb_register(&ati_remote_driver); |
805 | if (result) | |
806 | err("usb_register error #%d\n", result); | |
807 | else | |
808 | info("Registered USB driver " DRIVER_DESC " v. " DRIVER_VERSION); | |
809 | ||
810 | return result; | |
811 | } | |
812 | ||
813 | /* | |
814 | * ati_remote_exit | |
815 | */ | |
816 | static void __exit ati_remote_exit(void) | |
817 | { | |
818 | usb_deregister(&ati_remote_driver); | |
819 | } | |
820 | ||
05f091ab DT |
821 | /* |
822 | * module specification | |
1da177e4 LT |
823 | */ |
824 | ||
825 | module_init(ati_remote_init); | |
826 | module_exit(ati_remote_exit); | |
827 | ||
828 | MODULE_AUTHOR(DRIVER_AUTHOR); | |
829 | MODULE_DESCRIPTION(DRIVER_DESC); | |
830 | MODULE_LICENSE("GPL"); |