2 * USB ATI Remote support
4 * Version 2.2.0 Copyright (c) 2004 Torrey Hoffman <thoffman@arnor.net>
5 * Version 2.1.1 Copyright (c) 2002 Vladimir Dergachev
7 * This 2.2.0 version is a rewrite / cleanup of the 2.1.1 driver, including
8 * porting to the 2.6 kernel interfaces, along with other modification
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.
12 * The 2.1.1 driver was derived from the usbati_remote and usbkbd drivers by
17 * Feb 2004: Torrey Hoffman <thoffman@arnor.net>
19 * Jun 2004: Torrey Hoffman <thoffman@arnor.net>
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>
26 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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
30 * the Free Software Foundation; either version 2 of the License, or
31 * (at your option) any later version.
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.
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
42 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
44 * Hardware & software notes
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
48 * "USB Receiver" with manufacturer "X10 Wireless Technology Inc".
50 * The "Lola" remote is available from X10. See:
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
55 * It is possible to use multiple receivers and remotes on multiple computers
56 * simultaneously by configuring them to use specific channels.
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
62 * Each remote can be configured to transmit on one channel as follows:
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
66 * to 16, and press the hand icon again.
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.
72 * The driver has a "channel_mask" parameter. This bitmask specifies which
73 * channels will be ignored by the module. To mask out channels, just add
74 * all the 2^channel_number values together.
76 * For instance, set channel_mask = 2^4 = 16 (binary 10000) to make ati_remote
77 * ignore signals coming from remote controls transmitting on channel 4, but
78 * accept all other channels.
80 * Or, set channel_mask = 65533, (0xFFFD), and all channels except 1 will be
83 * The default is 0 (respond to all channels). Bit 0 and bits 17-32 of this
84 * parameter are unused.
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>
99 * Module and Version Information, Module Parameters
102 #define ATI_REMOTE_VENDOR_ID 0x0bc7
103 #define ATI_REMOTE_PRODUCT_ID 0x004
104 #define LOLA_REMOTE_PRODUCT_ID 0x002
106 #define DRIVER_VERSION "2.2.1"
107 #define DRIVER_AUTHOR "Torrey Hoffman <thoffman@arnor.net>"
108 #define DRIVER_DESC "ATI/X10 RF USB Remote Control"
110 #define NAME_BUFSIZE 80 /* size of product name, path buffers */
111 #define DATA_BUFSIZE 63 /* size of URB data buffers */
112 #define ATI_INPUTNUM 1 /* Which input device to register as */
114 static unsigned long channel_mask = 0;
115 module_param(channel_mask, ulong, 0444);
116 MODULE_PARM_DESC(channel_mask, "Bitmask of remote control channels to ignore");
118 static int debug = 0;
119 module_param(debug, int, 0444);
120 MODULE_PARM_DESC(debug, "Enable extra debug messages and information");
122 #define dbginfo(dev, format, arg...) do { if (debug) dev_info(dev , format , ## arg); } while (0)
124 #define err(format, arg...) printk(KERN_ERR format , ## arg)
126 static struct usb_device_id ati_remote_table[] = {
127 { USB_DEVICE(ATI_REMOTE_VENDOR_ID, ATI_REMOTE_PRODUCT_ID) },
128 { USB_DEVICE(ATI_REMOTE_VENDOR_ID, LOLA_REMOTE_PRODUCT_ID) },
129 {} /* Terminating entry */
132 MODULE_DEVICE_TABLE(usb, ati_remote_table);
134 /* Get hi and low bytes of a 16-bits int */
135 #define HI(a) ((unsigned char)((a) >> 8))
136 #define LO(a) ((unsigned char)((a) & 0xff))
138 #define SEND_FLAG_IN_PROGRESS 1
139 #define SEND_FLAG_COMPLETE 2
141 /* Device initialization strings */
142 static char init1[] = { 0x01, 0x00, 0x20, 0x14 };
143 static char init2[] = { 0x01, 0x00, 0x20, 0x14, 0x20, 0x20, 0x20 };
145 /* Acceleration curve for directional control pad */
146 static char accel[] = { 1, 2, 4, 6, 9, 13, 20 };
148 /* Duplicate event filtering time.
149 * Sequential, identical KIND_FILTERED inputs with less than
150 * FILTER_TIME jiffies between them are considered as repeat
151 * events. The hardware generates 5 events for the first keypress
152 * and we have to take this into account for an accurate repeat
154 * (HZ / 20) == 50 ms and works well for me.
156 #define FILTER_TIME (HZ / 20)
158 static DECLARE_MUTEX(disconnect_sem);
161 struct input_dev idev;
162 struct usb_device *udev;
163 struct usb_interface *interface;
167 struct usb_endpoint_descriptor *endpoint_in;
168 struct usb_endpoint_descriptor *endpoint_out;
169 unsigned char *inbuf;
170 unsigned char *outbuf;
171 dma_addr_t inbuf_dma;
172 dma_addr_t outbuf_dma;
174 int open; /* open counter */
175 int present; /* device plugged in? */
177 unsigned char old_data[2]; /* Detect duplicate events */
178 unsigned long old_jiffies;
179 unsigned long acc_jiffies; /* handle acceleration */
180 unsigned int repeat_count;
182 char name[NAME_BUFSIZE];
183 char phys[NAME_BUFSIZE];
185 wait_queue_head_t wait;
189 /* "Kinds" of messages sent from the hardware to the driver. */
191 #define KIND_LITERAL 1 /* Simply pass to input system */
192 #define KIND_FILTERED 2 /* Add artificial key-up events, drop keyrepeats */
193 #define KIND_LU 3 /* Directional keypad diagonals - left up, */
194 #define KIND_RU 4 /* right up, */
195 #define KIND_LD 5 /* left down, */
196 #define KIND_RD 6 /* right down */
197 #define KIND_ACCEL 7 /* Directional keypad - left, right, up, down.*/
199 /* Translation table from hardware messages to input events. */
203 unsigned char data1, data2;
209 /* Directional control pad axes */
210 {KIND_ACCEL, 0x35, 0x70, EV_REL, REL_X, -1}, /* left */
211 {KIND_ACCEL, 0x36, 0x71, EV_REL, REL_X, 1}, /* right */
212 {KIND_ACCEL, 0x37, 0x72, EV_REL, REL_Y, -1}, /* up */
213 {KIND_ACCEL, 0x38, 0x73, EV_REL, REL_Y, 1}, /* down */
214 /* Directional control pad diagonals */
215 {KIND_LU, 0x39, 0x74, EV_REL, 0, 0}, /* left up */
216 {KIND_RU, 0x3a, 0x75, EV_REL, 0, 0}, /* right up */
217 {KIND_LD, 0x3c, 0x77, EV_REL, 0, 0}, /* left down */
218 {KIND_RD, 0x3b, 0x76, EV_REL, 0, 0}, /* right down */
220 /* "Mouse button" buttons */
221 {KIND_LITERAL, 0x3d, 0x78, EV_KEY, BTN_LEFT, 1}, /* left btn down */
222 {KIND_LITERAL, 0x3e, 0x79, EV_KEY, BTN_LEFT, 0}, /* left btn up */
223 {KIND_LITERAL, 0x41, 0x7c, EV_KEY, BTN_RIGHT, 1},/* right btn down */
224 {KIND_LITERAL, 0x42, 0x7d, EV_KEY, BTN_RIGHT, 0},/* right btn up */
226 /* Artificial "doubleclick" events are generated by the hardware.
227 * They are mapped to the "side" and "extra" mouse buttons here. */
228 {KIND_FILTERED, 0x3f, 0x7a, EV_KEY, BTN_SIDE, 1}, /* left dblclick */
229 {KIND_FILTERED, 0x43, 0x7e, EV_KEY, BTN_EXTRA, 1},/* right dblclick */
232 {KIND_FILTERED, 0xd2, 0x0d, EV_KEY, KEY_1, 1},
233 {KIND_FILTERED, 0xd3, 0x0e, EV_KEY, KEY_2, 1},
234 {KIND_FILTERED, 0xd4, 0x0f, EV_KEY, KEY_3, 1},
235 {KIND_FILTERED, 0xd5, 0x10, EV_KEY, KEY_4, 1},
236 {KIND_FILTERED, 0xd6, 0x11, EV_KEY, KEY_5, 1},
237 {KIND_FILTERED, 0xd7, 0x12, EV_KEY, KEY_6, 1},
238 {KIND_FILTERED, 0xd8, 0x13, EV_KEY, KEY_7, 1},
239 {KIND_FILTERED, 0xd9, 0x14, EV_KEY, KEY_8, 1},
240 {KIND_FILTERED, 0xda, 0x15, EV_KEY, KEY_9, 1},
241 {KIND_FILTERED, 0xdc, 0x17, EV_KEY, KEY_0, 1},
242 {KIND_FILTERED, 0xc5, 0x00, EV_KEY, KEY_A, 1},
243 {KIND_FILTERED, 0xc6, 0x01, EV_KEY, KEY_B, 1},
244 {KIND_FILTERED, 0xde, 0x19, EV_KEY, KEY_C, 1},
245 {KIND_FILTERED, 0xe0, 0x1b, EV_KEY, KEY_D, 1},
246 {KIND_FILTERED, 0xe6, 0x21, EV_KEY, KEY_E, 1},
247 {KIND_FILTERED, 0xe8, 0x23, EV_KEY, KEY_F, 1},
250 {KIND_FILTERED, 0xdd, 0x18, EV_KEY, KEY_KPENTER, 1}, /* "check" */
251 {KIND_FILTERED, 0xdb, 0x16, EV_KEY, KEY_MENU, 1}, /* "menu" */
252 {KIND_FILTERED, 0xc7, 0x02, EV_KEY, KEY_POWER, 1}, /* Power */
253 {KIND_FILTERED, 0xc8, 0x03, EV_KEY, KEY_PROG1, 1}, /* TV */
254 {KIND_FILTERED, 0xc9, 0x04, EV_KEY, KEY_PROG2, 1}, /* DVD */
255 {KIND_FILTERED, 0xca, 0x05, EV_KEY, KEY_WWW, 1}, /* WEB */
256 {KIND_FILTERED, 0xcb, 0x06, EV_KEY, KEY_BOOKMARKS, 1}, /* "book" */
257 {KIND_FILTERED, 0xcc, 0x07, EV_KEY, KEY_EDIT, 1}, /* "hand" */
258 {KIND_FILTERED, 0xe1, 0x1c, EV_KEY, KEY_COFFEE, 1}, /* "timer" */
259 {KIND_FILTERED, 0xe5, 0x20, EV_KEY, KEY_FRONT, 1}, /* "max" */
260 {KIND_FILTERED, 0xe2, 0x1d, EV_KEY, KEY_LEFT, 1}, /* left */
261 {KIND_FILTERED, 0xe4, 0x1f, EV_KEY, KEY_RIGHT, 1}, /* right */
262 {KIND_FILTERED, 0xe7, 0x22, EV_KEY, KEY_DOWN, 1}, /* down */
263 {KIND_FILTERED, 0xdf, 0x1a, EV_KEY, KEY_UP, 1}, /* up */
264 {KIND_FILTERED, 0xe3, 0x1e, EV_KEY, KEY_ENTER, 1}, /* "OK" */
265 {KIND_FILTERED, 0xce, 0x09, EV_KEY, KEY_VOLUMEDOWN, 1}, /* VOL + */
266 {KIND_FILTERED, 0xcd, 0x08, EV_KEY, KEY_VOLUMEUP, 1}, /* VOL - */
267 {KIND_FILTERED, 0xcf, 0x0a, EV_KEY, KEY_MUTE, 1}, /* MUTE */
268 {KIND_FILTERED, 0xd1, 0x0c, EV_KEY, KEY_CHANNELUP, 1}, /* CH + */
269 {KIND_FILTERED, 0xd0, 0x0b, EV_KEY, KEY_CHANNELDOWN, 1},/* CH - */
270 {KIND_FILTERED, 0xec, 0x27, EV_KEY, KEY_RECORD, 1}, /* ( o) red */
271 {KIND_FILTERED, 0xea, 0x25, EV_KEY, KEY_PLAYCD, 1}, /* ( >) */
272 {KIND_FILTERED, 0xe9, 0x24, EV_KEY, KEY_REWIND, 1}, /* (<<) */
273 {KIND_FILTERED, 0xeb, 0x26, EV_KEY, KEY_FORWARD, 1}, /* (>>) */
274 {KIND_FILTERED, 0xed, 0x28, EV_KEY, KEY_STOP, 1}, /* ([]) */
275 {KIND_FILTERED, 0xee, 0x29, EV_KEY, KEY_PAUSE, 1}, /* ('') */
276 {KIND_FILTERED, 0xf0, 0x2b, EV_KEY, KEY_PREVIOUS, 1}, /* (<-) */
277 {KIND_FILTERED, 0xef, 0x2a, EV_KEY, KEY_NEXT, 1}, /* (>+) */
278 {KIND_FILTERED, 0xf2, 0x2D, EV_KEY, KEY_INFO, 1}, /* PLAYING */
279 {KIND_FILTERED, 0xf3, 0x2E, EV_KEY, KEY_HOME, 1}, /* TOP */
280 {KIND_FILTERED, 0xf4, 0x2F, EV_KEY, KEY_END, 1}, /* END */
281 {KIND_FILTERED, 0xf5, 0x30, EV_KEY, KEY_SELECT, 1}, /* SELECT */
283 {KIND_END, 0x00, 0x00, EV_MAX + 1, 0, 0}
286 /* Local function prototypes */
287 static void ati_remote_dump (unsigned char *data, unsigned int actual_length);
288 static void ati_remote_delete (struct ati_remote *dev);
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);
292 static void ati_remote_irq_out (struct urb *urb, struct pt_regs *regs);
293 static void ati_remote_irq_in (struct urb *urb, struct pt_regs *regs);
294 static void ati_remote_input_report (struct urb *urb, struct pt_regs *regs);
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);
299 /* usb specific object to register with the usb subsystem */
300 static struct usb_driver ati_remote_driver = {
301 .owner = THIS_MODULE,
302 .name = "ati_remote",
303 .probe = ati_remote_probe,
304 .disconnect = ati_remote_disconnect,
305 .id_table = ati_remote_table,
309 * ati_remote_dump_input
311 static void ati_remote_dump(unsigned char *data, unsigned int len)
313 if ((len == 1) && (data[0] != (unsigned char)0xff) && (data[0] != 0x00))
314 warn("Weird byte 0x%02x", data[0]);
316 warn("Weird key %02x %02x %02x %02x",
317 data[0], data[1], data[2], data[3]);
319 warn("Weird data, len=%d %02x %02x %02x %02x %02x %02x ...",
320 len, data[0], data[1], data[2], data[3], data[4], data[5]);
326 static int ati_remote_open(struct input_dev *inputdev)
328 struct ati_remote *ati_remote = inputdev->private;
331 down(&disconnect_sem);
333 if (ati_remote->open++)
336 /* On first open, submit the read urb which was set up previously. */
337 ati_remote->irq_urb->dev = ati_remote->udev;
338 if (usb_submit_urb(ati_remote->irq_urb, GFP_KERNEL)) {
339 dev_err(&ati_remote->interface->dev,
340 "%s: usb_submit_urb failed!\n", __FUNCTION__);
353 static void ati_remote_close(struct input_dev *inputdev)
355 struct ati_remote *ati_remote = inputdev->private;
357 if (ati_remote == NULL) {
358 err("ati_remote: %s: object is NULL!\n", __FUNCTION__);
362 if (ati_remote->open <= 0)
363 dev_dbg(&ati_remote->interface->dev, "%s: Not open.\n", __FUNCTION__);
367 /* If still present, disconnect will call delete. */
368 if (!ati_remote->present && !ati_remote->open)
369 ati_remote_delete(ati_remote);
375 static void ati_remote_irq_out(struct urb *urb, struct pt_regs *regs)
377 struct ati_remote *ati_remote = urb->context;
380 dev_dbg(&ati_remote->interface->dev, "%s: status %d\n",
381 __FUNCTION__, urb->status);
385 ati_remote->send_flags |= SEND_FLAG_COMPLETE;
387 wake_up(&ati_remote->wait);
391 * ati_remote_sendpacket
393 * Used to send device initialization strings
395 static int ati_remote_sendpacket(struct ati_remote *ati_remote, u16 cmd, unsigned char *data)
397 DECLARE_WAITQUEUE(wait, current);
398 int timeout = HZ; /* 1 second */
402 memcpy(ati_remote->out_urb->transfer_buffer + 1, data, LO(cmd));
403 ((char *) ati_remote->out_urb->transfer_buffer)[0] = HI(cmd);
405 ati_remote->out_urb->transfer_buffer_length = LO(cmd) + 1;
406 ati_remote->out_urb->dev = ati_remote->udev;
407 ati_remote->send_flags = SEND_FLAG_IN_PROGRESS;
409 retval = usb_submit_urb(ati_remote->out_urb, GFP_ATOMIC);
411 dev_dbg(&ati_remote->interface->dev,
412 "sendpacket: usb_submit_urb failed: %d\n", retval);
416 set_current_state(TASK_INTERRUPTIBLE);
417 add_wait_queue(&ati_remote->wait, &wait);
419 while (timeout && (ati_remote->out_urb->status == -EINPROGRESS)
420 && !(ati_remote->send_flags & SEND_FLAG_COMPLETE)) {
421 timeout = schedule_timeout(timeout);
425 set_current_state(TASK_RUNNING);
426 remove_wait_queue(&ati_remote->wait, &wait);
427 usb_unlink_urb(ati_remote->out_urb);
433 * ati_remote_event_lookup
435 static int ati_remote_event_lookup(int rem, unsigned char d1, unsigned char d2)
439 for (i = 0; ati_remote_tbl[i].kind != KIND_END; i++) {
441 * Decide if the table entry matches the remote input.
443 if ((((ati_remote_tbl[i].data1 & 0x0f) == (d1 & 0x0f))) &&
444 ((((ati_remote_tbl[i].data1 >> 4) -
445 (d1 >> 4) + rem) & 0x0f) == 0x0f) &&
446 (ati_remote_tbl[i].data2 == d2))
454 * ati_remote_report_input
456 static void ati_remote_input_report(struct urb *urb, struct pt_regs *regs)
458 struct ati_remote *ati_remote = urb->context;
459 unsigned char *data= ati_remote->inbuf;
460 struct input_dev *dev = &ati_remote->idev;
464 /* Deal with strange looking inputs */
465 if ( (urb->actual_length != 4) || (data[0] != 0x14) ||
466 ((data[3] & 0x0f) != 0x00) ) {
467 ati_remote_dump(data, urb->actual_length);
471 /* Mask unwanted remote channels. */
472 /* note: remote_num is 0-based, channel 1 on remote == 0 here */
473 remote_num = (data[3] >> 4) & 0x0f;
474 if (channel_mask & (1 << (remote_num + 1))) {
475 dbginfo(&ati_remote->interface->dev,
476 "Masked input from channel 0x%02x: data %02x,%02x, mask= 0x%02lx\n",
477 remote_num, data[1], data[2], channel_mask);
481 /* Look up event code index in translation table */
482 index = ati_remote_event_lookup(remote_num, data[1], data[2]);
484 dev_warn(&ati_remote->interface->dev,
485 "Unknown input from channel 0x%02x: data %02x,%02x\n",
486 remote_num, data[1], data[2]);
489 dbginfo(&ati_remote->interface->dev,
490 "channel 0x%02x; data %02x,%02x; index %d; keycode %d\n",
491 remote_num, data[1], data[2], index, ati_remote_tbl[index].code);
493 if (ati_remote_tbl[index].kind == KIND_LITERAL) {
494 input_regs(dev, regs);
495 input_event(dev, ati_remote_tbl[index].type,
496 ati_remote_tbl[index].code,
497 ati_remote_tbl[index].value);
500 ati_remote->old_jiffies = jiffies;
504 if (ati_remote_tbl[index].kind == KIND_FILTERED) {
505 /* Filter duplicate events which happen "too close" together. */
506 if ((ati_remote->old_data[0] == data[1]) &&
507 (ati_remote->old_data[1] == data[2]) &&
508 ((ati_remote->old_jiffies + FILTER_TIME) > jiffies)) {
509 ati_remote->repeat_count++;
512 ati_remote->repeat_count = 0;
515 ati_remote->old_data[0] = data[1];
516 ati_remote->old_data[1] = data[2];
517 ati_remote->old_jiffies = jiffies;
519 if ((ati_remote->repeat_count > 0)
520 && (ati_remote->repeat_count < 5))
524 input_regs(dev, regs);
525 input_event(dev, ati_remote_tbl[index].type,
526 ati_remote_tbl[index].code, 1);
527 input_event(dev, ati_remote_tbl[index].type,
528 ati_remote_tbl[index].code, 0);
535 * Other event kinds are from the directional control pad, and have an
536 * acceleration factor applied to them. Without this acceleration, the
537 * control pad is mostly unusable.
539 * If elapsed time since last event is > 1/4 second, user "stopped",
540 * so reset acceleration. Otherwise, user is probably holding the control
541 * pad down, so we increase acceleration, ramping up over two seconds to
542 * a maximum speed. The acceleration curve is #defined above.
544 if ((jiffies - ati_remote->old_jiffies) > (HZ >> 2)) {
546 ati_remote->acc_jiffies = jiffies;
548 else if ((jiffies - ati_remote->acc_jiffies) < (HZ >> 3)) acc = accel[0];
549 else if ((jiffies - ati_remote->acc_jiffies) < (HZ >> 2)) acc = accel[1];
550 else if ((jiffies - ati_remote->acc_jiffies) < (HZ >> 1)) acc = accel[2];
551 else if ((jiffies - ati_remote->acc_jiffies) < HZ ) acc = accel[3];
552 else if ((jiffies - ati_remote->acc_jiffies) < HZ+(HZ>>1)) acc = accel[4];
553 else if ((jiffies - ati_remote->acc_jiffies) < (HZ << 1)) acc = accel[5];
556 input_regs(dev, regs);
557 switch (ati_remote_tbl[index].kind) {
559 input_event(dev, ati_remote_tbl[index].type,
560 ati_remote_tbl[index].code,
561 ati_remote_tbl[index].value * acc);
564 input_report_rel(dev, REL_X, -acc);
565 input_report_rel(dev, REL_Y, -acc);
568 input_report_rel(dev, REL_X, acc);
569 input_report_rel(dev, REL_Y, -acc);
572 input_report_rel(dev, REL_X, -acc);
573 input_report_rel(dev, REL_Y, acc);
576 input_report_rel(dev, REL_X, acc);
577 input_report_rel(dev, REL_Y, acc);
580 dev_dbg(&ati_remote->interface->dev, "ati_remote kind=%d\n",
581 ati_remote_tbl[index].kind);
585 ati_remote->old_jiffies = jiffies;
586 ati_remote->old_data[0] = data[1];
587 ati_remote->old_data[1] = data[2];
593 static void ati_remote_irq_in(struct urb *urb, struct pt_regs *regs)
595 struct ati_remote *ati_remote = urb->context;
598 switch (urb->status) {
599 case 0: /* success */
600 ati_remote_input_report(urb, regs);
602 case -ECONNRESET: /* unlink */
605 dev_dbg(&ati_remote->interface->dev, "%s: urb error status, unlink? \n",
609 dev_dbg(&ati_remote->interface->dev, "%s: Nonzero urb status %d\n",
610 __FUNCTION__, urb->status);
613 retval = usb_submit_urb(urb, SLAB_ATOMIC);
615 dev_err(&ati_remote->interface->dev, "%s: usb_submit_urb()=%d\n",
616 __FUNCTION__, retval);
622 static void ati_remote_delete(struct ati_remote *ati_remote)
624 if (!ati_remote) return;
626 if (ati_remote->irq_urb)
627 usb_unlink_urb(ati_remote->irq_urb);
629 if (ati_remote->out_urb)
630 usb_unlink_urb(ati_remote->out_urb);
632 input_unregister_device(&ati_remote->idev);
634 if (ati_remote->inbuf)
635 usb_buffer_free(ati_remote->udev, DATA_BUFSIZE,
636 ati_remote->inbuf, ati_remote->inbuf_dma);
638 if (ati_remote->outbuf)
639 usb_buffer_free(ati_remote->udev, DATA_BUFSIZE,
640 ati_remote->inbuf, ati_remote->outbuf_dma);
642 if (ati_remote->irq_urb)
643 usb_free_urb(ati_remote->irq_urb);
645 if (ati_remote->out_urb)
646 usb_free_urb(ati_remote->out_urb);
651 static void ati_remote_input_init(struct ati_remote *ati_remote)
653 struct input_dev *idev = &(ati_remote->idev);
656 idev->evbit[0] = BIT(EV_KEY) | BIT(EV_REL);
657 idev->keybit[LONG(BTN_MOUSE)] = ( BIT(BTN_LEFT) | BIT(BTN_RIGHT) |
658 BIT(BTN_SIDE) | BIT(BTN_EXTRA) );
659 idev->relbit[0] = BIT(REL_X) | BIT(REL_Y);
660 for (i = 0; ati_remote_tbl[i].kind != KIND_END; i++)
661 if (ati_remote_tbl[i].type == EV_KEY)
662 set_bit(ati_remote_tbl[i].code, idev->keybit);
664 idev->private = ati_remote;
665 idev->open = ati_remote_open;
666 idev->close = ati_remote_close;
668 idev->name = ati_remote->name;
669 idev->phys = ati_remote->phys;
671 idev->id.bustype = BUS_USB;
672 idev->id.vendor = ati_remote->udev->descriptor.idVendor;
673 idev->id.product = ati_remote->udev->descriptor.idProduct;
674 idev->id.version = ati_remote->udev->descriptor.bcdDevice;
677 static int ati_remote_initialize(struct ati_remote *ati_remote)
679 struct usb_device *udev = ati_remote->udev;
682 init_waitqueue_head(&ati_remote->wait);
685 pipe = usb_rcvintpipe(udev, ati_remote->endpoint_in->bEndpointAddress);
686 maxp = usb_maxpacket(udev, pipe, usb_pipeout(pipe));
687 maxp = (maxp > DATA_BUFSIZE) ? DATA_BUFSIZE : maxp;
689 usb_fill_int_urb(ati_remote->irq_urb, udev, pipe, ati_remote->inbuf,
690 maxp, ati_remote_irq_in, ati_remote,
691 ati_remote->endpoint_in->bInterval);
692 ati_remote->irq_urb->transfer_dma = ati_remote->inbuf_dma;
693 ati_remote->irq_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
696 pipe = usb_sndintpipe(udev, ati_remote->endpoint_out->bEndpointAddress);
697 maxp = usb_maxpacket(udev, pipe, usb_pipeout(pipe));
698 maxp = (maxp > DATA_BUFSIZE) ? DATA_BUFSIZE : maxp;
700 usb_fill_int_urb(ati_remote->out_urb, udev, pipe, ati_remote->outbuf,
701 maxp, ati_remote_irq_out, ati_remote,
702 ati_remote->endpoint_out->bInterval);
703 ati_remote->out_urb->transfer_dma = ati_remote->outbuf_dma;
704 ati_remote->out_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
706 /* send initialization strings */
707 if ((ati_remote_sendpacket(ati_remote, 0x8004, init1)) ||
708 (ati_remote_sendpacket(ati_remote, 0x8007, init2))) {
709 dev_err(&ati_remote->interface->dev,
710 "Initializing ati_remote hardware failed.\n");
720 static int ati_remote_probe(struct usb_interface *interface, const struct usb_device_id *id)
722 struct usb_device *udev = interface_to_usbdev(interface);
723 struct ati_remote *ati_remote = NULL;
724 struct usb_host_interface *iface_host;
725 int retval = -ENOMEM;
729 /* See if the offered device matches what we can accept */
730 if ((udev->descriptor.idVendor != ATI_REMOTE_VENDOR_ID) ||
731 ( (udev->descriptor.idProduct != ATI_REMOTE_PRODUCT_ID) &&
732 (udev->descriptor.idProduct != LOLA_REMOTE_PRODUCT_ID) ))
735 /* Allocate and clear an ati_remote struct */
736 if (!(ati_remote = kmalloc(sizeof (struct ati_remote), GFP_KERNEL)))
738 memset(ati_remote, 0x00, sizeof (struct ati_remote));
740 iface_host = interface->cur_altsetting;
741 if (iface_host->desc.bNumEndpoints != 2) {
742 err("%s: Unexpected desc.bNumEndpoints\n", __FUNCTION__);
747 ati_remote->endpoint_in = &(iface_host->endpoint[0].desc);
748 ati_remote->endpoint_out = &(iface_host->endpoint[1].desc);
749 ati_remote->udev = udev;
750 ati_remote->interface = interface;
752 if (!(ati_remote->endpoint_in->bEndpointAddress & 0x80)) {
753 err("%s: Unexpected endpoint_in->bEndpointAddress\n", __FUNCTION__);
757 if ((ati_remote->endpoint_in->bmAttributes & 3) != 3) {
758 err("%s: Unexpected endpoint_in->bmAttributes\n", __FUNCTION__);
762 if (ati_remote->endpoint_in->wMaxPacketSize == 0) {
763 err("%s: endpoint_in message size==0? \n", __FUNCTION__);
767 if (!(buf = kmalloc(NAME_BUFSIZE, GFP_KERNEL)))
770 /* Allocate URB buffers, URBs */
771 ati_remote->inbuf = usb_buffer_alloc(udev, DATA_BUFSIZE, SLAB_ATOMIC,
772 &ati_remote->inbuf_dma);
773 if (!ati_remote->inbuf)
776 ati_remote->outbuf = usb_buffer_alloc(udev, DATA_BUFSIZE, SLAB_ATOMIC,
777 &ati_remote->outbuf_dma);
778 if (!ati_remote->outbuf)
781 ati_remote->irq_urb = usb_alloc_urb(0, GFP_KERNEL);
782 if (!ati_remote->irq_urb)
785 ati_remote->out_urb = usb_alloc_urb(0, GFP_KERNEL);
786 if (!ati_remote->out_urb)
789 usb_make_path(udev, path, NAME_BUFSIZE);
790 sprintf(ati_remote->phys, "%s/input%d", path, ATI_INPUTNUM);
791 if (udev->descriptor.iManufacturer &&
792 (usb_string(udev, udev->descriptor.iManufacturer, buf,
794 strcat(ati_remote->name, buf);
796 if (udev->descriptor.iProduct &&
797 (usb_string(udev, udev->descriptor.iProduct, buf, NAME_BUFSIZE) > 0))
798 sprintf(ati_remote->name, "%s %s", ati_remote->name, buf);
800 if (!strlen(ati_remote->name))
801 sprintf(ati_remote->name, DRIVER_DESC "(%04x,%04x)",
802 ati_remote->udev->descriptor.idVendor,
803 ati_remote->udev->descriptor.idProduct);
805 /* Device Hardware Initialization - fills in ati_remote->idev from udev. */
806 retval = ati_remote_initialize(ati_remote);
810 /* Set up and register input device */
811 ati_remote_input_init(ati_remote);
812 input_register_device(&ati_remote->idev);
814 dev_info(&ati_remote->interface->dev, "Input registered: %s on %s\n",
815 ati_remote->name, path);
817 usb_set_intfdata(interface, ati_remote);
818 ati_remote->present = 1;
825 ati_remote_delete(ati_remote);
831 * ati_remote_disconnect
833 static void ati_remote_disconnect(struct usb_interface *interface)
835 struct ati_remote *ati_remote;
837 down(&disconnect_sem);
839 ati_remote = usb_get_intfdata(interface);
840 usb_set_intfdata(interface, NULL);
842 warn("%s - null device?\n", __FUNCTION__);
846 /* Mark device as unplugged */
847 ati_remote->present = 0;
849 /* If device is still open, ati_remote_close will call delete. */
850 if (!ati_remote->open)
851 ati_remote_delete(ati_remote);
859 static int __init ati_remote_init(void)
863 result = usb_register(&ati_remote_driver);
865 err("usb_register error #%d\n", result);
867 info("Registered USB driver " DRIVER_DESC " v. " DRIVER_VERSION);
875 static void __exit ati_remote_exit(void)
877 usb_deregister(&ati_remote_driver);
881 * module specification
884 module_init(ati_remote_init);
885 module_exit(ati_remote_exit);
887 MODULE_AUTHOR(DRIVER_AUTHOR);
888 MODULE_DESCRIPTION(DRIVER_DESC);
889 MODULE_LICENSE("GPL");