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25#define pr_fmt(fmt) KBUILD_MODNAME ":%s: " fmt, __func__
26
27#include <linux/errno.h>
28#include <linux/init.h>
29#include <linux/kernel.h>
30#include <linux/module.h>
31#include <linux/slab.h>
32#include <linux/uaccess.h>
33#include <linux/ratelimit.h>
34
35#include <linux/input.h>
36#include <linux/usb.h>
37#include <linux/usb/input.h>
38#include <media/rc-core.h>
39
40#include <linux/time.h>
41#include <linux/timer.h>
42
43#define MOD_AUTHOR "Jarod Wilson <jarod@wilsonet.com>"
44#define MOD_DESC "Driver for SoundGraph iMON MultiMedia IR/Display"
45#define MOD_NAME "imon"
46#define MOD_VERSION "0.9.4"
47
48#define DISPLAY_MINOR_BASE 144
49#define DEVICE_NAME "lcd%d"
50
51#define BUF_CHUNK_SIZE 8
52#define BUF_SIZE 128
53
54#define BIT_DURATION 250
55
56#define IMON_CLOCK_ENABLE_PACKETS 2
57
58
59
60
61static int imon_probe(struct usb_interface *interface,
62 const struct usb_device_id *id);
63static void imon_disconnect(struct usb_interface *interface);
64static void usb_rx_callback_intf0(struct urb *urb);
65static void usb_rx_callback_intf1(struct urb *urb);
66static void usb_tx_callback(struct urb *urb);
67
68
69static int imon_resume(struct usb_interface *intf);
70static int imon_suspend(struct usb_interface *intf, pm_message_t message);
71
72
73static int display_open(struct inode *inode, struct file *file);
74static int display_close(struct inode *inode, struct file *file);
75
76
77static ssize_t vfd_write(struct file *file, const char __user *buf,
78 size_t n_bytes, loff_t *pos);
79
80
81static ssize_t lcd_write(struct file *file, const char __user *buf,
82 size_t n_bytes, loff_t *pos);
83
84
85
86struct imon_panel_key_table {
87 u64 hw_code;
88 u32 keycode;
89};
90
91struct imon_usb_dev_descr {
92 __u16 flags;
93#define IMON_NO_FLAGS 0
94#define IMON_NEED_20MS_PKT_DELAY 1
95#define IMON_IR_RAW 2
96 struct imon_panel_key_table key_table[];
97};
98
99struct imon_context {
100 struct device *dev;
101
102 struct usb_device *usbdev_intf0;
103 struct usb_device *usbdev_intf1;
104
105 bool display_supported;
106 bool display_isopen;
107 bool rf_device;
108 bool rf_isassociating;
109 bool dev_present_intf0;
110 bool dev_present_intf1;
111
112 struct mutex lock;
113 wait_queue_head_t remove_ok;
114
115 struct usb_endpoint_descriptor *rx_endpoint_intf0;
116 struct usb_endpoint_descriptor *rx_endpoint_intf1;
117 struct usb_endpoint_descriptor *tx_endpoint;
118 struct urb *rx_urb_intf0;
119 struct urb *rx_urb_intf1;
120 struct urb *tx_urb;
121 bool tx_control;
122 unsigned char usb_rx_buf[8];
123 unsigned char usb_tx_buf[8];
124 unsigned int send_packet_delay;
125
126 struct rx_data {
127 int count;
128 int prev_bit;
129 int initial_space;
130 } rx;
131
132 struct tx_t {
133 unsigned char data_buf[35];
134 struct completion finished;
135 bool busy;
136 int status;
137 } tx;
138
139 u16 vendor;
140 u16 product;
141
142 struct rc_dev *rdev;
143 struct input_dev *idev;
144 struct input_dev *touch;
145
146 spinlock_t kc_lock;
147 u32 kc;
148 u32 last_keycode;
149 u32 rc_scancode;
150 u8 rc_toggle;
151 u64 rc_type;
152 bool release_code;
153
154 u8 display_type;
155 bool pad_mouse;
156
157 char name_rdev[128];
158 char phys_rdev[64];
159
160 char name_idev[128];
161 char phys_idev[64];
162
163 char name_touch[128];
164 char phys_touch[64];
165 struct timer_list ttimer;
166 int touch_x;
167 int touch_y;
168 struct imon_usb_dev_descr *dev_descr;
169
170};
171
172#define TOUCH_TIMEOUT (HZ/30)
173
174
175static const struct file_operations vfd_fops = {
176 .owner = THIS_MODULE,
177 .open = &display_open,
178 .write = &vfd_write,
179 .release = &display_close,
180 .llseek = noop_llseek,
181};
182
183
184static const struct file_operations lcd_fops = {
185 .owner = THIS_MODULE,
186 .open = &display_open,
187 .write = &lcd_write,
188 .release = &display_close,
189 .llseek = noop_llseek,
190};
191
192enum {
193 IMON_DISPLAY_TYPE_AUTO = 0,
194 IMON_DISPLAY_TYPE_VFD = 1,
195 IMON_DISPLAY_TYPE_LCD = 2,
196 IMON_DISPLAY_TYPE_VGA = 3,
197 IMON_DISPLAY_TYPE_NONE = 4,
198};
199
200enum {
201 IMON_KEY_IMON = 0,
202 IMON_KEY_MCE = 1,
203 IMON_KEY_PANEL = 2,
204};
205
206static struct usb_class_driver imon_vfd_class = {
207 .name = DEVICE_NAME,
208 .fops = &vfd_fops,
209 .minor_base = DISPLAY_MINOR_BASE,
210};
211
212static struct usb_class_driver imon_lcd_class = {
213 .name = DEVICE_NAME,
214 .fops = &lcd_fops,
215 .minor_base = DISPLAY_MINOR_BASE,
216};
217
218
219static const struct imon_usb_dev_descr imon_default_table = {
220 .flags = IMON_NO_FLAGS,
221 .key_table = {
222 { 0x000000000f00ffeell, KEY_MEDIA },
223 { 0x000000001200ffeell, KEY_UP },
224 { 0x000000001300ffeell, KEY_DOWN },
225 { 0x000000001400ffeell, KEY_LEFT },
226 { 0x000000001500ffeell, KEY_RIGHT },
227 { 0x000000001600ffeell, KEY_ENTER },
228 { 0x000000001700ffeell, KEY_ESC },
229 { 0x000000001f00ffeell, KEY_AUDIO },
230 { 0x000000002000ffeell, KEY_VIDEO },
231 { 0x000000002100ffeell, KEY_CAMERA },
232 { 0x000000002700ffeell, KEY_DVD },
233 { 0x000000002300ffeell, KEY_TV },
234 { 0x000000002b00ffeell, KEY_EXIT },
235 { 0x000000002c00ffeell, KEY_SELECT },
236 { 0x000000002d00ffeell, KEY_MENU },
237 { 0x000000000500ffeell, KEY_PREVIOUS },
238 { 0x000000000700ffeell, KEY_REWIND },
239 { 0x000000000400ffeell, KEY_STOP },
240 { 0x000000003c00ffeell, KEY_PLAYPAUSE },
241 { 0x000000000800ffeell, KEY_FASTFORWARD },
242 { 0x000000000600ffeell, KEY_NEXT },
243 { 0x000000010000ffeell, KEY_RIGHT },
244 { 0x000001000000ffeell, KEY_LEFT },
245 { 0x000000003d00ffeell, KEY_SELECT },
246 { 0x000100000000ffeell, KEY_VOLUMEUP },
247 { 0x010000000000ffeell, KEY_VOLUMEDOWN },
248 { 0x000000000100ffeell, KEY_MUTE },
249
250 { 0x00010000ffffffeell, KEY_VOLUMEUP },
251 { 0x01000000ffffffeell, KEY_VOLUMEDOWN },
252 { 0x00000001ffffffeell, KEY_MUTE },
253 { 0x0000000fffffffeell, KEY_MEDIA },
254 { 0x00000012ffffffeell, KEY_UP },
255 { 0x00000013ffffffeell, KEY_DOWN },
256 { 0x00000014ffffffeell, KEY_LEFT },
257 { 0x00000015ffffffeell, KEY_RIGHT },
258 { 0x00000016ffffffeell, KEY_ENTER },
259 { 0x00000017ffffffeell, KEY_ESC },
260
261 { 0x000100ffffffffeell, KEY_VOLUMEUP },
262 { 0x010000ffffffffeell, KEY_VOLUMEDOWN },
263 { 0x000008ffffffffeell, KEY_MUTE },
264 { 0, KEY_RESERVED },
265 }
266};
267
268static const struct imon_usb_dev_descr imon_OEM_VFD = {
269 .flags = IMON_NEED_20MS_PKT_DELAY,
270 .key_table = {
271 { 0x000000000f00ffeell, KEY_MEDIA },
272 { 0x000000001200ffeell, KEY_UP },
273 { 0x000000001300ffeell, KEY_DOWN },
274 { 0x000000001400ffeell, KEY_LEFT },
275 { 0x000000001500ffeell, KEY_RIGHT },
276 { 0x000000001600ffeell, KEY_ENTER },
277 { 0x000000001700ffeell, KEY_ESC },
278 { 0x000000001f00ffeell, KEY_AUDIO },
279 { 0x000000002b00ffeell, KEY_EXIT },
280 { 0x000000002c00ffeell, KEY_SELECT },
281 { 0x000000002d00ffeell, KEY_MENU },
282 { 0x000000000500ffeell, KEY_PREVIOUS },
283 { 0x000000000700ffeell, KEY_REWIND },
284 { 0x000000000400ffeell, KEY_STOP },
285 { 0x000000003c00ffeell, KEY_PLAYPAUSE },
286 { 0x000000000800ffeell, KEY_FASTFORWARD },
287 { 0x000000000600ffeell, KEY_NEXT },
288 { 0x000000010000ffeell, KEY_RIGHT },
289 { 0x000001000000ffeell, KEY_LEFT },
290 { 0x000000003d00ffeell, KEY_SELECT },
291 { 0x000100000000ffeell, KEY_VOLUMEUP },
292 { 0x010000000000ffeell, KEY_VOLUMEDOWN },
293 { 0x000000000100ffeell, KEY_MUTE },
294
295 { 0x00010000ffffffeell, KEY_VOLUMEUP },
296 { 0x01000000ffffffeell, KEY_VOLUMEDOWN },
297 { 0x00000001ffffffeell, KEY_MUTE },
298 { 0x0000000fffffffeell, KEY_MEDIA },
299 { 0x00000012ffffffeell, KEY_UP },
300 { 0x00000013ffffffeell, KEY_DOWN },
301 { 0x00000014ffffffeell, KEY_LEFT },
302 { 0x00000015ffffffeell, KEY_RIGHT },
303 { 0x00000016ffffffeell, KEY_ENTER },
304 { 0x00000017ffffffeell, KEY_ESC },
305
306 { 0x000100ffffffffeell, KEY_VOLUMEUP },
307 { 0x010000ffffffffeell, KEY_VOLUMEDOWN },
308 { 0x000008ffffffffeell, KEY_MUTE },
309 { 0, KEY_RESERVED },
310 }
311};
312
313
314static const struct imon_usb_dev_descr imon_DH102 = {
315 .flags = IMON_NO_FLAGS,
316 .key_table = {
317 { 0x000100000000ffeell, KEY_VOLUMEUP },
318 { 0x010000000000ffeell, KEY_VOLUMEDOWN },
319 { 0x000000010000ffeell, KEY_MUTE },
320 { 0x0000000f0000ffeell, KEY_MEDIA },
321 { 0x000000120000ffeell, KEY_UP },
322 { 0x000000130000ffeell, KEY_DOWN },
323 { 0x000000140000ffeell, KEY_LEFT },
324 { 0x000000150000ffeell, KEY_RIGHT },
325 { 0x000000160000ffeell, KEY_ENTER },
326 { 0x000000170000ffeell, KEY_ESC },
327 { 0x0000002b0000ffeell, KEY_EXIT },
328 { 0x0000002c0000ffeell, KEY_SELECT },
329 { 0x0000002d0000ffeell, KEY_MENU },
330 { 0, KEY_RESERVED }
331 }
332};
333
334static const struct imon_usb_dev_descr imon_ir_raw = {
335 .flags = IMON_IR_RAW,
336};
337
338
339
340
341
342
343
344
345
346
347
348
349static struct usb_device_id imon_usb_id_table[] = {
350
351
352
353
354
355
356 { USB_DEVICE(0x15c2, 0xffdc),
357 .driver_info = (unsigned long)&imon_default_table },
358
359
360
361
362
363
364
365 { USB_DEVICE(0x15c2, 0x0034),
366 .driver_info = (unsigned long)&imon_DH102 },
367
368 { USB_DEVICE(0x15c2, 0x0035),
369 .driver_info = (unsigned long)&imon_default_table},
370
371 { USB_DEVICE(0x15c2, 0x0036),
372 .driver_info = (unsigned long)&imon_OEM_VFD },
373
374 { USB_DEVICE(0x15c2, 0x0037),
375 .driver_info = (unsigned long)&imon_default_table},
376
377 { USB_DEVICE(0x15c2, 0x0038),
378 .driver_info = (unsigned long)&imon_default_table},
379
380 { USB_DEVICE(0x15c2, 0x0039),
381 .driver_info = (unsigned long)&imon_default_table},
382
383 { USB_DEVICE(0x15c2, 0x003a),
384 .driver_info = (unsigned long)&imon_default_table},
385
386 { USB_DEVICE(0x15c2, 0x003b),
387 .driver_info = (unsigned long)&imon_default_table},
388
389 { USB_DEVICE(0x15c2, 0x003c),
390 .driver_info = (unsigned long)&imon_default_table},
391
392 { USB_DEVICE(0x15c2, 0x003d),
393 .driver_info = (unsigned long)&imon_default_table},
394
395 { USB_DEVICE(0x15c2, 0x003e),
396 .driver_info = (unsigned long)&imon_default_table},
397
398 { USB_DEVICE(0x15c2, 0x003f),
399 .driver_info = (unsigned long)&imon_default_table},
400
401 { USB_DEVICE(0x15c2, 0x0040),
402 .driver_info = (unsigned long)&imon_default_table},
403
404 { USB_DEVICE(0x15c2, 0x0041),
405 .driver_info = (unsigned long)&imon_default_table},
406
407 { USB_DEVICE(0x15c2, 0x0042),
408 .driver_info = (unsigned long)&imon_default_table},
409
410 { USB_DEVICE(0x15c2, 0x0043),
411 .driver_info = (unsigned long)&imon_default_table},
412
413 { USB_DEVICE(0x15c2, 0x0044),
414 .driver_info = (unsigned long)&imon_default_table},
415
416 { USB_DEVICE(0x15c2, 0x0045),
417 .driver_info = (unsigned long)&imon_default_table},
418
419 { USB_DEVICE(0x15c2, 0x0046),
420 .driver_info = (unsigned long)&imon_default_table},
421
422 { USB_DEVICE(0x0aa8, 0x8001),
423 .driver_info = (unsigned long)&imon_ir_raw},
424
425 { USB_DEVICE(0x04e8, 0xff30),
426 .driver_info = (unsigned long)&imon_ir_raw},
427
428 { USB_DEVICE(0x0aa8, 0xffda),
429 .driver_info = (unsigned long)&imon_ir_raw},
430
431 { USB_DEVICE(0x15c2, 0xffda),
432 .driver_info = (unsigned long)&imon_ir_raw},
433 {}
434};
435
436
437static struct usb_driver imon_driver = {
438 .name = MOD_NAME,
439 .probe = imon_probe,
440 .disconnect = imon_disconnect,
441 .suspend = imon_suspend,
442 .resume = imon_resume,
443 .id_table = imon_usb_id_table,
444};
445
446
447static DEFINE_MUTEX(driver_lock);
448
449
450MODULE_AUTHOR(MOD_AUTHOR);
451MODULE_DESCRIPTION(MOD_DESC);
452MODULE_VERSION(MOD_VERSION);
453MODULE_LICENSE("GPL");
454MODULE_DEVICE_TABLE(usb, imon_usb_id_table);
455
456static bool debug;
457module_param(debug, bool, S_IRUGO | S_IWUSR);
458MODULE_PARM_DESC(debug, "Debug messages: 0=no, 1=yes (default: no)");
459
460
461static int display_type;
462module_param(display_type, int, S_IRUGO);
463MODULE_PARM_DESC(display_type, "Type of attached display. 0=autodetect, 1=vfd, 2=lcd, 3=vga, 4=none (default: autodetect)");
464
465static int pad_stabilize = 1;
466module_param(pad_stabilize, int, S_IRUGO | S_IWUSR);
467MODULE_PARM_DESC(pad_stabilize, "Apply stabilization algorithm to iMON PAD presses in arrow key mode. 0=disable, 1=enable (default).");
468
469
470
471
472
473static bool nomouse;
474module_param(nomouse, bool, S_IRUGO | S_IWUSR);
475MODULE_PARM_DESC(nomouse, "Disable mouse input device mode when IR device is open. 0=don't disable, 1=disable. (default: don't disable)");
476
477
478static int pad_thresh;
479module_param(pad_thresh, int, S_IRUGO | S_IWUSR);
480MODULE_PARM_DESC(pad_thresh, "Threshold at which a pad push registers as an arrow key in kbd mode (default: 28)");
481
482
483static void free_imon_context(struct imon_context *ictx)
484{
485 struct device *dev = ictx->dev;
486
487 usb_free_urb(ictx->tx_urb);
488 usb_free_urb(ictx->rx_urb_intf0);
489 usb_free_urb(ictx->rx_urb_intf1);
490 kfree(ictx);
491
492 dev_dbg(dev, "%s: iMON context freed\n", __func__);
493}
494
495
496
497
498
499static int display_open(struct inode *inode, struct file *file)
500{
501 struct usb_interface *interface;
502 struct imon_context *ictx = NULL;
503 int subminor;
504 int retval = 0;
505
506
507 mutex_lock(&driver_lock);
508
509 subminor = iminor(inode);
510 interface = usb_find_interface(&imon_driver, subminor);
511 if (!interface) {
512 pr_err("could not find interface for minor %d\n", subminor);
513 retval = -ENODEV;
514 goto exit;
515 }
516 ictx = usb_get_intfdata(interface);
517
518 if (!ictx) {
519 pr_err("no context found for minor %d\n", subminor);
520 retval = -ENODEV;
521 goto exit;
522 }
523
524 mutex_lock(&ictx->lock);
525
526 if (!ictx->display_supported) {
527 pr_err("display not supported by device\n");
528 retval = -ENODEV;
529 } else if (ictx->display_isopen) {
530 pr_err("display port is already open\n");
531 retval = -EBUSY;
532 } else {
533 ictx->display_isopen = true;
534 file->private_data = ictx;
535 dev_dbg(ictx->dev, "display port opened\n");
536 }
537
538 mutex_unlock(&ictx->lock);
539
540exit:
541 mutex_unlock(&driver_lock);
542 return retval;
543}
544
545
546
547
548
549static int display_close(struct inode *inode, struct file *file)
550{
551 struct imon_context *ictx = NULL;
552 int retval = 0;
553
554 ictx = file->private_data;
555
556 if (!ictx) {
557 pr_err("no context for device\n");
558 return -ENODEV;
559 }
560
561 mutex_lock(&ictx->lock);
562
563 if (!ictx->display_supported) {
564 pr_err("display not supported by device\n");
565 retval = -ENODEV;
566 } else if (!ictx->display_isopen) {
567 pr_err("display is not open\n");
568 retval = -EIO;
569 } else {
570 ictx->display_isopen = false;
571 dev_dbg(ictx->dev, "display port closed\n");
572 }
573
574 mutex_unlock(&ictx->lock);
575 return retval;
576}
577
578
579
580
581
582
583static int send_packet(struct imon_context *ictx)
584{
585 unsigned int pipe;
586 unsigned long timeout;
587 int interval = 0;
588 int retval = 0;
589 struct usb_ctrlrequest *control_req = NULL;
590
591
592 if (!ictx->tx_control) {
593 pipe = usb_sndintpipe(ictx->usbdev_intf0,
594 ictx->tx_endpoint->bEndpointAddress);
595 interval = ictx->tx_endpoint->bInterval;
596
597 usb_fill_int_urb(ictx->tx_urb, ictx->usbdev_intf0, pipe,
598 ictx->usb_tx_buf,
599 sizeof(ictx->usb_tx_buf),
600 usb_tx_callback, ictx, interval);
601
602 ictx->tx_urb->actual_length = 0;
603 } else {
604
605 control_req = kmalloc(sizeof(struct usb_ctrlrequest),
606 GFP_KERNEL);
607 if (control_req == NULL)
608 return -ENOMEM;
609
610
611 control_req->bRequestType = 0x21;
612 control_req->bRequest = 0x09;
613 control_req->wValue = cpu_to_le16(0x0200);
614 control_req->wIndex = cpu_to_le16(0x0001);
615 control_req->wLength = cpu_to_le16(0x0008);
616
617
618 pipe = usb_sndctrlpipe(ictx->usbdev_intf0, 0);
619
620
621 usb_fill_control_urb(ictx->tx_urb, ictx->usbdev_intf0,
622 pipe, (unsigned char *)control_req,
623 ictx->usb_tx_buf,
624 sizeof(ictx->usb_tx_buf),
625 usb_tx_callback, ictx);
626 ictx->tx_urb->actual_length = 0;
627 }
628
629 reinit_completion(&ictx->tx.finished);
630 ictx->tx.busy = true;
631 smp_rmb();
632
633 retval = usb_submit_urb(ictx->tx_urb, GFP_KERNEL);
634 if (retval) {
635 ictx->tx.busy = false;
636 smp_rmb();
637 pr_err_ratelimited("error submitting urb(%d)\n", retval);
638 } else {
639
640 mutex_unlock(&ictx->lock);
641 retval = wait_for_completion_interruptible(
642 &ictx->tx.finished);
643 if (retval) {
644 usb_kill_urb(ictx->tx_urb);
645 pr_err_ratelimited("task interrupted\n");
646 }
647 mutex_lock(&ictx->lock);
648
649 retval = ictx->tx.status;
650 if (retval)
651 pr_err_ratelimited("packet tx failed (%d)\n", retval);
652 }
653
654 kfree(control_req);
655
656
657
658
659
660
661 timeout = msecs_to_jiffies(ictx->send_packet_delay);
662 set_current_state(TASK_INTERRUPTIBLE);
663 schedule_timeout(timeout);
664
665 return retval;
666}
667
668
669
670
671
672
673
674
675
676static int send_associate_24g(struct imon_context *ictx)
677{
678 int retval;
679 const unsigned char packet[8] = { 0x01, 0x00, 0x00, 0x00,
680 0x00, 0x00, 0x00, 0x20 };
681
682 if (!ictx) {
683 pr_err("no context for device\n");
684 return -ENODEV;
685 }
686
687 if (!ictx->dev_present_intf0) {
688 pr_err("no iMON device present\n");
689 return -ENODEV;
690 }
691
692 memcpy(ictx->usb_tx_buf, packet, sizeof(packet));
693 retval = send_packet(ictx);
694
695 return retval;
696}
697
698
699
700
701
702
703
704
705static int send_set_imon_clock(struct imon_context *ictx,
706 unsigned int year, unsigned int month,
707 unsigned int day, unsigned int dow,
708 unsigned int hour, unsigned int minute,
709 unsigned int second)
710{
711 unsigned char clock_enable_pkt[IMON_CLOCK_ENABLE_PACKETS][8];
712 int retval = 0;
713 int i;
714
715 if (!ictx) {
716 pr_err("no context for device\n");
717 return -ENODEV;
718 }
719
720 switch (ictx->display_type) {
721 case IMON_DISPLAY_TYPE_LCD:
722 clock_enable_pkt[0][0] = 0x80;
723 clock_enable_pkt[0][1] = year;
724 clock_enable_pkt[0][2] = month-1;
725 clock_enable_pkt[0][3] = day;
726 clock_enable_pkt[0][4] = hour;
727 clock_enable_pkt[0][5] = minute;
728 clock_enable_pkt[0][6] = second;
729
730 clock_enable_pkt[1][0] = 0x80;
731 clock_enable_pkt[1][1] = 0;
732 clock_enable_pkt[1][2] = 0;
733 clock_enable_pkt[1][3] = 0;
734 clock_enable_pkt[1][4] = 0;
735 clock_enable_pkt[1][5] = 0;
736 clock_enable_pkt[1][6] = 0;
737
738 if (ictx->product == 0xffdc) {
739 clock_enable_pkt[0][7] = 0x50;
740 clock_enable_pkt[1][7] = 0x51;
741 } else {
742 clock_enable_pkt[0][7] = 0x88;
743 clock_enable_pkt[1][7] = 0x8a;
744 }
745
746 break;
747
748 case IMON_DISPLAY_TYPE_VFD:
749 clock_enable_pkt[0][0] = year;
750 clock_enable_pkt[0][1] = month-1;
751 clock_enable_pkt[0][2] = day;
752 clock_enable_pkt[0][3] = dow;
753 clock_enable_pkt[0][4] = hour;
754 clock_enable_pkt[0][5] = minute;
755 clock_enable_pkt[0][6] = second;
756 clock_enable_pkt[0][7] = 0x40;
757
758 clock_enable_pkt[1][0] = 0;
759 clock_enable_pkt[1][1] = 0;
760 clock_enable_pkt[1][2] = 1;
761 clock_enable_pkt[1][3] = 0;
762 clock_enable_pkt[1][4] = 0;
763 clock_enable_pkt[1][5] = 0;
764 clock_enable_pkt[1][6] = 0;
765 clock_enable_pkt[1][7] = 0x42;
766
767 break;
768
769 default:
770 return -ENODEV;
771 }
772
773 for (i = 0; i < IMON_CLOCK_ENABLE_PACKETS; i++) {
774 memcpy(ictx->usb_tx_buf, clock_enable_pkt[i], 8);
775 retval = send_packet(ictx);
776 if (retval) {
777 pr_err("send_packet failed for packet %d\n", i);
778 break;
779 }
780 }
781
782 return retval;
783}
784
785
786
787
788static ssize_t show_associate_remote(struct device *d,
789 struct device_attribute *attr,
790 char *buf)
791{
792 struct imon_context *ictx = dev_get_drvdata(d);
793
794 if (!ictx)
795 return -ENODEV;
796
797 mutex_lock(&ictx->lock);
798 if (ictx->rf_isassociating)
799 strcpy(buf, "associating\n");
800 else
801 strcpy(buf, "closed\n");
802
803 dev_info(d, "Visit http://www.lirc.org/html/imon-24g.html for instructions on how to associate your iMON 2.4G DT/LT remote\n");
804 mutex_unlock(&ictx->lock);
805 return strlen(buf);
806}
807
808static ssize_t store_associate_remote(struct device *d,
809 struct device_attribute *attr,
810 const char *buf, size_t count)
811{
812 struct imon_context *ictx;
813
814 ictx = dev_get_drvdata(d);
815
816 if (!ictx)
817 return -ENODEV;
818
819 mutex_lock(&ictx->lock);
820 ictx->rf_isassociating = true;
821 send_associate_24g(ictx);
822 mutex_unlock(&ictx->lock);
823
824 return count;
825}
826
827
828
829
830static ssize_t show_imon_clock(struct device *d,
831 struct device_attribute *attr, char *buf)
832{
833 struct imon_context *ictx = dev_get_drvdata(d);
834 size_t len;
835
836 if (!ictx)
837 return -ENODEV;
838
839 mutex_lock(&ictx->lock);
840
841 if (!ictx->display_supported) {
842 len = snprintf(buf, PAGE_SIZE, "Not supported.");
843 } else {
844 len = snprintf(buf, PAGE_SIZE,
845 "To set the clock on your iMON display:\n"
846 "# date \"+%%y %%m %%d %%w %%H %%M %%S\" > imon_clock\n"
847 "%s", ictx->display_isopen ?
848 "\nNOTE: imon device must be closed\n" : "");
849 }
850
851 mutex_unlock(&ictx->lock);
852
853 return len;
854}
855
856static ssize_t store_imon_clock(struct device *d,
857 struct device_attribute *attr,
858 const char *buf, size_t count)
859{
860 struct imon_context *ictx = dev_get_drvdata(d);
861 ssize_t retval;
862 unsigned int year, month, day, dow, hour, minute, second;
863
864 if (!ictx)
865 return -ENODEV;
866
867 mutex_lock(&ictx->lock);
868
869 if (!ictx->display_supported) {
870 retval = -ENODEV;
871 goto exit;
872 } else if (ictx->display_isopen) {
873 retval = -EBUSY;
874 goto exit;
875 }
876
877 if (sscanf(buf, "%u %u %u %u %u %u %u", &year, &month, &day, &dow,
878 &hour, &minute, &second) != 7) {
879 retval = -EINVAL;
880 goto exit;
881 }
882
883 if ((month < 1 || month > 12) ||
884 (day < 1 || day > 31) || (dow > 6) ||
885 (hour > 23) || (minute > 59) || (second > 59)) {
886 retval = -EINVAL;
887 goto exit;
888 }
889
890 retval = send_set_imon_clock(ictx, year, month, day, dow,
891 hour, minute, second);
892 if (retval)
893 goto exit;
894
895 retval = count;
896exit:
897 mutex_unlock(&ictx->lock);
898
899 return retval;
900}
901
902
903static DEVICE_ATTR(imon_clock, S_IWUSR | S_IRUGO, show_imon_clock,
904 store_imon_clock);
905
906static DEVICE_ATTR(associate_remote, S_IWUSR | S_IRUGO, show_associate_remote,
907 store_associate_remote);
908
909static struct attribute *imon_display_sysfs_entries[] = {
910 &dev_attr_imon_clock.attr,
911 NULL
912};
913
914static struct attribute_group imon_display_attr_group = {
915 .attrs = imon_display_sysfs_entries
916};
917
918static struct attribute *imon_rf_sysfs_entries[] = {
919 &dev_attr_associate_remote.attr,
920 NULL
921};
922
923static struct attribute_group imon_rf_attr_group = {
924 .attrs = imon_rf_sysfs_entries
925};
926
927
928
929
930
931
932
933
934
935
936
937
938static ssize_t vfd_write(struct file *file, const char __user *buf,
939 size_t n_bytes, loff_t *pos)
940{
941 int i;
942 int offset;
943 int seq;
944 int retval = 0;
945 struct imon_context *ictx;
946 const unsigned char vfd_packet6[] = {
947 0x01, 0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF };
948
949 ictx = file->private_data;
950 if (!ictx) {
951 pr_err_ratelimited("no context for device\n");
952 return -ENODEV;
953 }
954
955 mutex_lock(&ictx->lock);
956
957 if (!ictx->dev_present_intf0) {
958 pr_err_ratelimited("no iMON device present\n");
959 retval = -ENODEV;
960 goto exit;
961 }
962
963 if (n_bytes <= 0 || n_bytes > 32) {
964 pr_err_ratelimited("invalid payload size\n");
965 retval = -EINVAL;
966 goto exit;
967 }
968
969 if (copy_from_user(ictx->tx.data_buf, buf, n_bytes)) {
970 retval = -EFAULT;
971 goto exit;
972 }
973
974
975 for (i = n_bytes; i < 32; ++i)
976 ictx->tx.data_buf[i] = ' ';
977
978 for (i = 32; i < 35; ++i)
979 ictx->tx.data_buf[i] = 0xFF;
980
981 offset = 0;
982 seq = 0;
983
984 do {
985 memcpy(ictx->usb_tx_buf, ictx->tx.data_buf + offset, 7);
986 ictx->usb_tx_buf[7] = (unsigned char) seq;
987
988 retval = send_packet(ictx);
989 if (retval) {
990 pr_err_ratelimited("send packet #%d failed\n", seq / 2);
991 goto exit;
992 } else {
993 seq += 2;
994 offset += 7;
995 }
996
997 } while (offset < 35);
998
999
1000 memcpy(ictx->usb_tx_buf, &vfd_packet6, sizeof(vfd_packet6));
1001 ictx->usb_tx_buf[7] = (unsigned char) seq;
1002 retval = send_packet(ictx);
1003 if (retval)
1004 pr_err_ratelimited("send packet #%d failed\n", seq / 2);
1005
1006exit:
1007 mutex_unlock(&ictx->lock);
1008
1009 return (!retval) ? n_bytes : retval;
1010}
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025static ssize_t lcd_write(struct file *file, const char __user *buf,
1026 size_t n_bytes, loff_t *pos)
1027{
1028 int retval = 0;
1029 struct imon_context *ictx;
1030
1031 ictx = file->private_data;
1032 if (!ictx) {
1033 pr_err_ratelimited("no context for device\n");
1034 return -ENODEV;
1035 }
1036
1037 mutex_lock(&ictx->lock);
1038
1039 if (!ictx->display_supported) {
1040 pr_err_ratelimited("no iMON display present\n");
1041 retval = -ENODEV;
1042 goto exit;
1043 }
1044
1045 if (n_bytes != 8) {
1046 pr_err_ratelimited("invalid payload size: %d (expected 8)\n",
1047 (int)n_bytes);
1048 retval = -EINVAL;
1049 goto exit;
1050 }
1051
1052 if (copy_from_user(ictx->usb_tx_buf, buf, 8)) {
1053 retval = -EFAULT;
1054 goto exit;
1055 }
1056
1057 retval = send_packet(ictx);
1058 if (retval) {
1059 pr_err_ratelimited("send packet failed!\n");
1060 goto exit;
1061 } else {
1062 dev_dbg(ictx->dev, "%s: write %d bytes to LCD\n",
1063 __func__, (int) n_bytes);
1064 }
1065exit:
1066 mutex_unlock(&ictx->lock);
1067 return (!retval) ? n_bytes : retval;
1068}
1069
1070
1071
1072
1073static void usb_tx_callback(struct urb *urb)
1074{
1075 struct imon_context *ictx;
1076
1077 if (!urb)
1078 return;
1079 ictx = (struct imon_context *)urb->context;
1080 if (!ictx)
1081 return;
1082
1083 ictx->tx.status = urb->status;
1084
1085
1086 ictx->tx.busy = false;
1087 smp_rmb();
1088 complete(&ictx->tx.finished);
1089}
1090
1091
1092
1093
1094static void imon_touch_display_timeout(unsigned long data)
1095{
1096 struct imon_context *ictx = (struct imon_context *)data;
1097
1098 if (ictx->display_type != IMON_DISPLAY_TYPE_VGA)
1099 return;
1100
1101 input_report_abs(ictx->touch, ABS_X, ictx->touch_x);
1102 input_report_abs(ictx->touch, ABS_Y, ictx->touch_y);
1103 input_report_key(ictx->touch, BTN_TOUCH, 0x00);
1104 input_sync(ictx->touch);
1105}
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121static int imon_ir_change_protocol(struct rc_dev *rc, u64 *rc_type)
1122{
1123 int retval;
1124 struct imon_context *ictx = rc->priv;
1125 struct device *dev = ictx->dev;
1126 bool unlock = false;
1127 unsigned char ir_proto_packet[] = {
1128 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x86 };
1129
1130 if (*rc_type && !(*rc_type & rc->allowed_protocols))
1131 dev_warn(dev, "Looks like you're trying to use an IR protocol this device does not support\n");
1132
1133 if (*rc_type & RC_BIT_RC6_MCE) {
1134 dev_dbg(dev, "Configuring IR receiver for MCE protocol\n");
1135 ir_proto_packet[0] = 0x01;
1136 *rc_type = RC_BIT_RC6_MCE;
1137 } else if (*rc_type & RC_BIT_OTHER) {
1138 dev_dbg(dev, "Configuring IR receiver for iMON protocol\n");
1139 if (!pad_stabilize)
1140 dev_dbg(dev, "PAD stabilize functionality disabled\n");
1141
1142 *rc_type = RC_BIT_OTHER;
1143 } else {
1144 dev_warn(dev, "Unsupported IR protocol specified, overriding to iMON IR protocol\n");
1145 if (!pad_stabilize)
1146 dev_dbg(dev, "PAD stabilize functionality disabled\n");
1147
1148 *rc_type = RC_BIT_OTHER;
1149 }
1150
1151 memcpy(ictx->usb_tx_buf, &ir_proto_packet, sizeof(ir_proto_packet));
1152
1153 if (!mutex_is_locked(&ictx->lock)) {
1154 unlock = true;
1155 mutex_lock(&ictx->lock);
1156 }
1157
1158 retval = send_packet(ictx);
1159 if (retval)
1160 goto out;
1161
1162 ictx->rc_type = *rc_type;
1163 ictx->pad_mouse = false;
1164
1165out:
1166 if (unlock)
1167 mutex_unlock(&ictx->lock);
1168
1169 return retval;
1170}
1171
1172static inline int tv2int(const struct timeval *a, const struct timeval *b)
1173{
1174 int usecs = 0;
1175 int sec = 0;
1176
1177 if (b->tv_usec > a->tv_usec) {
1178 usecs = 1000000;
1179 sec--;
1180 }
1181
1182 usecs += a->tv_usec - b->tv_usec;
1183
1184 sec += a->tv_sec - b->tv_sec;
1185 sec *= 1000;
1186 usecs /= 1000;
1187 sec += usecs;
1188
1189 if (sec < 0)
1190 sec = 1000;
1191
1192 return sec;
1193}
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203static int stabilize(int a, int b, u16 timeout, u16 threshold)
1204{
1205 struct timeval ct;
1206 static struct timeval prev_time = {0, 0};
1207 static struct timeval hit_time = {0, 0};
1208 static int x, y, prev_result, hits;
1209 int result = 0;
1210 int msec, msec_hit;
1211
1212 do_gettimeofday(&ct);
1213 msec = tv2int(&ct, &prev_time);
1214 msec_hit = tv2int(&ct, &hit_time);
1215
1216 if (msec > 100) {
1217 x = 0;
1218 y = 0;
1219 hits = 0;
1220 }
1221
1222 x += a;
1223 y += b;
1224
1225 prev_time = ct;
1226
1227 if (abs(x) > threshold || abs(y) > threshold) {
1228 if (abs(y) > abs(x))
1229 result = (y > 0) ? 0x7F : 0x80;
1230 else
1231 result = (x > 0) ? 0x7F00 : 0x8000;
1232
1233 x = 0;
1234 y = 0;
1235
1236 if (result == prev_result) {
1237 hits++;
1238
1239 if (hits > 3) {
1240 switch (result) {
1241 case 0x7F:
1242 y = 17 * threshold / 30;
1243 break;
1244 case 0x80:
1245 y -= 17 * threshold / 30;
1246 break;
1247 case 0x7F00:
1248 x = 17 * threshold / 30;
1249 break;
1250 case 0x8000:
1251 x -= 17 * threshold / 30;
1252 break;
1253 }
1254 }
1255
1256 if (hits == 2 && msec_hit < timeout) {
1257 result = 0;
1258 hits = 1;
1259 }
1260 } else {
1261 prev_result = result;
1262 hits = 1;
1263 hit_time = ct;
1264 }
1265 }
1266
1267 return result;
1268}
1269
1270static u32 imon_remote_key_lookup(struct imon_context *ictx, u32 scancode)
1271{
1272 u32 keycode;
1273 u32 release;
1274 bool is_release_code = false;
1275
1276
1277 keycode = rc_g_keycode_from_table(ictx->rdev, scancode);
1278 ictx->rc_toggle = 0x0;
1279 ictx->rc_scancode = scancode;
1280
1281
1282 if (keycode == KEY_RESERVED) {
1283 release = scancode & ~0x4000;
1284 keycode = rc_g_keycode_from_table(ictx->rdev, release);
1285 if (keycode != KEY_RESERVED)
1286 is_release_code = true;
1287 }
1288
1289 ictx->release_code = is_release_code;
1290
1291 return keycode;
1292}
1293
1294static u32 imon_mce_key_lookup(struct imon_context *ictx, u32 scancode)
1295{
1296 u32 keycode;
1297
1298#define MCE_KEY_MASK 0x7000
1299#define MCE_TOGGLE_BIT 0x8000
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309 if (scancode & 0x80000000)
1310 scancode = scancode | MCE_KEY_MASK | MCE_TOGGLE_BIT;
1311
1312 ictx->rc_scancode = scancode;
1313 keycode = rc_g_keycode_from_table(ictx->rdev, scancode);
1314
1315
1316 ictx->release_code = false;
1317
1318 return keycode;
1319}
1320
1321static u32 imon_panel_key_lookup(struct imon_context *ictx, u64 code)
1322{
1323 int i;
1324 u32 keycode = KEY_RESERVED;
1325 struct imon_panel_key_table *key_table = ictx->dev_descr->key_table;
1326
1327 for (i = 0; key_table[i].hw_code != 0; i++) {
1328 if (key_table[i].hw_code == (code | 0xffee)) {
1329 keycode = key_table[i].keycode;
1330 break;
1331 }
1332 }
1333 ictx->release_code = false;
1334 return keycode;
1335}
1336
1337static bool imon_mouse_event(struct imon_context *ictx,
1338 unsigned char *buf, int len)
1339{
1340 signed char rel_x = 0x00, rel_y = 0x00;
1341 u8 right_shift = 1;
1342 bool mouse_input = true;
1343 int dir = 0;
1344 unsigned long flags;
1345
1346 spin_lock_irqsave(&ictx->kc_lock, flags);
1347
1348
1349 if (ictx->product != 0xffdc && (buf[0] & 0x01) && len == 5) {
1350 rel_x = buf[2];
1351 rel_y = buf[3];
1352 right_shift = 1;
1353
1354 } else if (ictx->product == 0xffdc && (buf[0] & 0x40) &&
1355 !((buf[1] & 0x01) || ((buf[1] >> 2) & 0x01))) {
1356 rel_x = (buf[1] & 0x08) | (buf[1] & 0x10) >> 2 |
1357 (buf[1] & 0x20) >> 4 | (buf[1] & 0x40) >> 6;
1358 if (buf[0] & 0x02)
1359 rel_x |= ~0x0f;
1360 rel_x = rel_x + rel_x / 2;
1361 rel_y = (buf[2] & 0x08) | (buf[2] & 0x10) >> 2 |
1362 (buf[2] & 0x20) >> 4 | (buf[2] & 0x40) >> 6;
1363 if (buf[0] & 0x01)
1364 rel_y |= ~0x0f;
1365 rel_y = rel_y + rel_y / 2;
1366 right_shift = 2;
1367
1368 } else if (ictx->product == 0xffdc && (buf[0] == 0x68)) {
1369 right_shift = 2;
1370
1371 } else if (ictx->kc == KEY_CHANNELUP && (buf[2] & 0x40) != 0x40) {
1372 dir = 1;
1373 } else if (ictx->kc == KEY_CHANNELDOWN && (buf[2] & 0x40) != 0x40) {
1374 dir = -1;
1375 } else
1376 mouse_input = false;
1377
1378 spin_unlock_irqrestore(&ictx->kc_lock, flags);
1379
1380 if (mouse_input) {
1381 dev_dbg(ictx->dev, "sending mouse data via input subsystem\n");
1382
1383 if (dir) {
1384 input_report_rel(ictx->idev, REL_WHEEL, dir);
1385 } else if (rel_x || rel_y) {
1386 input_report_rel(ictx->idev, REL_X, rel_x);
1387 input_report_rel(ictx->idev, REL_Y, rel_y);
1388 } else {
1389 input_report_key(ictx->idev, BTN_LEFT, buf[1] & 0x1);
1390 input_report_key(ictx->idev, BTN_RIGHT,
1391 buf[1] >> right_shift & 0x1);
1392 }
1393 input_sync(ictx->idev);
1394 spin_lock_irqsave(&ictx->kc_lock, flags);
1395 ictx->last_keycode = ictx->kc;
1396 spin_unlock_irqrestore(&ictx->kc_lock, flags);
1397 }
1398
1399 return mouse_input;
1400}
1401
1402static void imon_touch_event(struct imon_context *ictx, unsigned char *buf)
1403{
1404 mod_timer(&ictx->ttimer, jiffies + TOUCH_TIMEOUT);
1405 ictx->touch_x = (buf[0] << 4) | (buf[1] >> 4);
1406 ictx->touch_y = 0xfff - ((buf[2] << 4) | (buf[1] & 0xf));
1407 input_report_abs(ictx->touch, ABS_X, ictx->touch_x);
1408 input_report_abs(ictx->touch, ABS_Y, ictx->touch_y);
1409 input_report_key(ictx->touch, BTN_TOUCH, 0x01);
1410 input_sync(ictx->touch);
1411}
1412
1413static void imon_pad_to_keys(struct imon_context *ictx, unsigned char *buf)
1414{
1415 int dir = 0;
1416 signed char rel_x = 0x00, rel_y = 0x00;
1417 u16 timeout, threshold;
1418 u32 scancode = KEY_RESERVED;
1419 unsigned long flags;
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429 if (ictx->product != 0xffdc) {
1430
1431 buf[5] = buf[6] = buf[7] = 0;
1432 timeout = 500;
1433
1434 threshold = pad_thresh ? pad_thresh : 28;
1435 rel_x = buf[2];
1436 rel_y = buf[3];
1437
1438 if (ictx->rc_type == RC_BIT_OTHER && pad_stabilize) {
1439 if ((buf[1] == 0) && ((rel_x != 0) || (rel_y != 0))) {
1440 dir = stabilize((int)rel_x, (int)rel_y,
1441 timeout, threshold);
1442 if (!dir) {
1443 spin_lock_irqsave(&ictx->kc_lock,
1444 flags);
1445 ictx->kc = KEY_UNKNOWN;
1446 spin_unlock_irqrestore(&ictx->kc_lock,
1447 flags);
1448 return;
1449 }
1450 buf[2] = dir & 0xFF;
1451 buf[3] = (dir >> 8) & 0xFF;
1452 scancode = be32_to_cpu(*((__be32 *)buf));
1453 }
1454 } else {
1455
1456
1457
1458
1459 if (abs(rel_y) > abs(rel_x)) {
1460 buf[2] = (rel_y > 0) ? 0x7F : 0x80;
1461 buf[3] = 0;
1462 if (rel_y > 0)
1463 scancode = 0x01007f00;
1464 else
1465 scancode = 0x01008000;
1466 } else {
1467 buf[2] = 0;
1468 buf[3] = (rel_x > 0) ? 0x7F : 0x80;
1469 if (rel_x > 0)
1470 scancode = 0x0100007f;
1471 else
1472 scancode = 0x01000080;
1473 }
1474 }
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486 } else {
1487 timeout = 10;
1488
1489 threshold = pad_thresh ? pad_thresh : 15;
1490
1491
1492 rel_x = (buf[1] & 0x08) | (buf[1] & 0x10) >> 2 |
1493 (buf[1] & 0x20) >> 4 | (buf[1] & 0x40) >> 6;
1494 if (buf[0] & 0x02)
1495 rel_x |= ~0x10+1;
1496
1497 rel_y = (buf[2] & 0x08) | (buf[2] & 0x10) >> 2 |
1498 (buf[2] & 0x20) >> 4 | (buf[2] & 0x40) >> 6;
1499 if (buf[0] & 0x01)
1500 rel_y |= ~0x10+1;
1501
1502 buf[0] = 0x01;
1503 buf[1] = buf[4] = buf[5] = buf[6] = buf[7] = 0;
1504
1505 if (ictx->rc_type == RC_BIT_OTHER && pad_stabilize) {
1506 dir = stabilize((int)rel_x, (int)rel_y,
1507 timeout, threshold);
1508 if (!dir) {
1509 spin_lock_irqsave(&ictx->kc_lock, flags);
1510 ictx->kc = KEY_UNKNOWN;
1511 spin_unlock_irqrestore(&ictx->kc_lock, flags);
1512 return;
1513 }
1514 buf[2] = dir & 0xFF;
1515 buf[3] = (dir >> 8) & 0xFF;
1516 scancode = be32_to_cpu(*((__be32 *)buf));
1517 } else {
1518
1519
1520
1521
1522 if (abs(rel_y) > abs(rel_x)) {
1523 buf[2] = (rel_y > 0) ? 0x7F : 0x80;
1524 buf[3] = 0;
1525 if (rel_y > 0)
1526 scancode = 0x01007f00;
1527 else
1528 scancode = 0x01008000;
1529 } else {
1530 buf[2] = 0;
1531 buf[3] = (rel_x > 0) ? 0x7F : 0x80;
1532 if (rel_x > 0)
1533 scancode = 0x0100007f;
1534 else
1535 scancode = 0x01000080;
1536 }
1537 }
1538 }
1539
1540 if (scancode) {
1541 spin_lock_irqsave(&ictx->kc_lock, flags);
1542 ictx->kc = imon_remote_key_lookup(ictx, scancode);
1543 spin_unlock_irqrestore(&ictx->kc_lock, flags);
1544 }
1545}
1546
1547
1548
1549
1550
1551
1552static int imon_parse_press_type(struct imon_context *ictx,
1553 unsigned char *buf, u8 ktype)
1554{
1555 int press_type = 0;
1556 unsigned long flags;
1557
1558 spin_lock_irqsave(&ictx->kc_lock, flags);
1559
1560
1561 if (ictx->kc == KEY_RESERVED && buf[0] == 0x02 && buf[3] == 0x00)
1562 ictx->kc = ictx->last_keycode;
1563
1564
1565 else if (ictx->kc == KEY_RESERVED && buf[0] == 0x68 && buf[1] == 0x82 &&
1566 buf[2] == 0x81 && buf[3] == 0xb7)
1567 ictx->kc = ictx->last_keycode;
1568
1569
1570 else if (ictx->kc == KEY_RESERVED && buf[0] == 0x01 && buf[1] == 0x00 &&
1571 buf[2] == 0x81 && buf[3] == 0xb7)
1572 ictx->kc = ictx->last_keycode;
1573
1574
1575 else if (ktype == IMON_KEY_MCE) {
1576 ictx->rc_toggle = buf[2];
1577 press_type = 1;
1578
1579
1580 } else if (ictx->kc == KEY_RESERVED)
1581 press_type = -EINVAL;
1582
1583
1584 else if (ictx->release_code)
1585 press_type = 0;
1586
1587
1588 else
1589 press_type = 1;
1590
1591 spin_unlock_irqrestore(&ictx->kc_lock, flags);
1592
1593 return press_type;
1594}
1595
1596
1597
1598
1599
1600
1601
1602
1603static void submit_data(struct imon_context *context)
1604{
1605 DEFINE_IR_RAW_EVENT(ev);
1606
1607 ev.pulse = context->rx.prev_bit;
1608 ev.duration = US_TO_NS(context->rx.count * BIT_DURATION);
1609 ir_raw_event_store_with_filter(context->rdev, &ev);
1610}
1611
1612
1613
1614
1615static void imon_incoming_ir_raw(struct imon_context *context,
1616 struct urb *urb, int intf)
1617{
1618 int len = urb->actual_length;
1619 unsigned char *buf = urb->transfer_buffer;
1620 struct device *dev = context->dev;
1621 int octet, bit;
1622 unsigned char mask;
1623
1624 if (len != 8) {
1625 dev_warn(dev, "imon %s: invalid incoming packet size (len = %d, intf%d)\n",
1626 __func__, len, intf);
1627 return;
1628 }
1629
1630 if (debug)
1631 dev_info(dev, "raw packet: %*ph\n", len, buf);
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646 if (buf[7] == 1 && context->rx.initial_space) {
1647
1648 context->rx.prev_bit = 0;
1649 context->rx.count = 4;
1650 submit_data(context);
1651 context->rx.count = 0;
1652 }
1653
1654 for (octet = 0; octet < 5; ++octet) {
1655 mask = 0x80;
1656 for (bit = 0; bit < 8; ++bit) {
1657 int curr_bit = !(buf[octet] & mask);
1658
1659 if (curr_bit != context->rx.prev_bit) {
1660 if (context->rx.count) {
1661 submit_data(context);
1662 context->rx.count = 0;
1663 }
1664 context->rx.prev_bit = curr_bit;
1665 }
1666 ++context->rx.count;
1667 mask >>= 1;
1668 }
1669 }
1670
1671 if (buf[7] == 10) {
1672 if (context->rx.count) {
1673 submit_data(context);
1674 context->rx.count = 0;
1675 }
1676 context->rx.initial_space = context->rx.prev_bit;
1677 }
1678
1679 ir_raw_event_handle(context->rdev);
1680}
1681
1682static void imon_incoming_scancode(struct imon_context *ictx,
1683 struct urb *urb, int intf)
1684{
1685 int len = urb->actual_length;
1686 unsigned char *buf = urb->transfer_buffer;
1687 struct device *dev = ictx->dev;
1688 unsigned long flags;
1689 u32 kc;
1690 u64 scancode;
1691 int press_type = 0;
1692 int msec;
1693 struct timeval t;
1694 static struct timeval prev_time = { 0, 0 };
1695 u8 ktype;
1696
1697
1698 if ((buf[0] == 0xff) && (buf[1] == 0xff) && (buf[2] == 0xff))
1699 return;
1700
1701
1702 if (len == 8 && buf[7] == 0xee) {
1703 scancode = be64_to_cpu(*((__be64 *)buf));
1704 ktype = IMON_KEY_PANEL;
1705 kc = imon_panel_key_lookup(ictx, scancode);
1706 ictx->release_code = false;
1707 } else {
1708 scancode = be32_to_cpu(*((__be32 *)buf));
1709 if (ictx->rc_type == RC_BIT_RC6_MCE) {
1710 ktype = IMON_KEY_IMON;
1711 if (buf[0] == 0x80)
1712 ktype = IMON_KEY_MCE;
1713 kc = imon_mce_key_lookup(ictx, scancode);
1714 } else {
1715 ktype = IMON_KEY_IMON;
1716 kc = imon_remote_key_lookup(ictx, scancode);
1717 }
1718 }
1719
1720 spin_lock_irqsave(&ictx->kc_lock, flags);
1721
1722 if (kc == KEY_KEYBOARD && !ictx->release_code) {
1723 ictx->last_keycode = kc;
1724 if (!nomouse) {
1725 ictx->pad_mouse = !ictx->pad_mouse;
1726 dev_dbg(dev, "toggling to %s mode\n",
1727 ictx->pad_mouse ? "mouse" : "keyboard");
1728 spin_unlock_irqrestore(&ictx->kc_lock, flags);
1729 return;
1730 } else {
1731 ictx->pad_mouse = false;
1732 dev_dbg(dev, "mouse mode disabled, passing key value\n");
1733 }
1734 }
1735
1736 ictx->kc = kc;
1737 spin_unlock_irqrestore(&ictx->kc_lock, flags);
1738
1739
1740 if (ictx->display_type == IMON_DISPLAY_TYPE_VGA && len == 8 &&
1741 buf[7] == 0x86) {
1742 imon_touch_event(ictx, buf);
1743 return;
1744
1745
1746 } else if (ictx->pad_mouse) {
1747 if (imon_mouse_event(ictx, buf, len))
1748 return;
1749 }
1750
1751
1752 if (((len == 5) && (buf[0] == 0x01) && (buf[4] == 0x00)) ||
1753 ((len == 8) && (buf[0] & 0x40) &&
1754 !(buf[1] & 0x1 || buf[1] >> 2 & 0x1))) {
1755 len = 8;
1756 imon_pad_to_keys(ictx, buf);
1757 }
1758
1759 if (debug) {
1760 printk(KERN_INFO "intf%d decoded packet: %*ph\n",
1761 intf, len, buf);
1762 }
1763
1764 press_type = imon_parse_press_type(ictx, buf, ktype);
1765 if (press_type < 0)
1766 goto not_input_data;
1767
1768 if (ktype != IMON_KEY_PANEL) {
1769 if (press_type == 0)
1770 rc_keyup(ictx->rdev);
1771 else {
1772 if (ictx->rc_type == RC_BIT_RC6_MCE ||
1773 ictx->rc_type == RC_BIT_OTHER)
1774 rc_keydown(ictx->rdev,
1775 ictx->rc_type == RC_BIT_RC6_MCE ? RC_TYPE_RC6_MCE : RC_TYPE_OTHER,
1776 ictx->rc_scancode, ictx->rc_toggle);
1777 spin_lock_irqsave(&ictx->kc_lock, flags);
1778 ictx->last_keycode = ictx->kc;
1779 spin_unlock_irqrestore(&ictx->kc_lock, flags);
1780 }
1781 return;
1782 }
1783
1784
1785 spin_lock_irqsave(&ictx->kc_lock, flags);
1786
1787 do_gettimeofday(&t);
1788
1789 if (ictx->kc == KEY_MUTE && ictx->kc == ictx->last_keycode) {
1790 msec = tv2int(&t, &prev_time);
1791 if (msec < ictx->idev->rep[REP_DELAY]) {
1792 spin_unlock_irqrestore(&ictx->kc_lock, flags);
1793 return;
1794 }
1795 }
1796 prev_time = t;
1797 kc = ictx->kc;
1798
1799 spin_unlock_irqrestore(&ictx->kc_lock, flags);
1800
1801 input_report_key(ictx->idev, kc, press_type);
1802 input_sync(ictx->idev);
1803
1804
1805 input_report_key(ictx->idev, kc, 0);
1806 input_sync(ictx->idev);
1807
1808 spin_lock_irqsave(&ictx->kc_lock, flags);
1809 ictx->last_keycode = kc;
1810 spin_unlock_irqrestore(&ictx->kc_lock, flags);
1811
1812 return;
1813
1814not_input_data:
1815 if (len != 8) {
1816 dev_warn(dev, "imon %s: invalid incoming packet size (len = %d, intf%d)\n",
1817 __func__, len, intf);
1818 return;
1819 }
1820
1821
1822 if (buf[0] == 0x00 &&
1823 buf[2] == 0xFF &&
1824 buf[3] == 0xFF &&
1825 buf[4] == 0xFF &&
1826 buf[5] == 0xFF &&
1827 ((buf[6] == 0x4E && buf[7] == 0xDF) ||
1828 (buf[6] == 0x5E && buf[7] == 0xDF))) {
1829 dev_warn(dev, "%s: remote associated refid=%02X\n",
1830 __func__, buf[1]);
1831 ictx->rf_isassociating = false;
1832 }
1833}
1834
1835
1836
1837
1838static void usb_rx_callback_intf0(struct urb *urb)
1839{
1840 struct imon_context *ictx;
1841 int intfnum = 0;
1842
1843 if (!urb)
1844 return;
1845
1846 ictx = (struct imon_context *)urb->context;
1847 if (!ictx)
1848 return;
1849
1850
1851
1852
1853
1854
1855 if (!ictx->dev_present_intf0)
1856 goto out;
1857
1858 switch (urb->status) {
1859 case -ENOENT:
1860 return;
1861
1862 case -ESHUTDOWN:
1863 break;
1864
1865 case 0:
1866 if (ictx->rdev->driver_type == RC_DRIVER_IR_RAW)
1867 imon_incoming_ir_raw(ictx, urb, intfnum);
1868 else
1869 imon_incoming_scancode(ictx, urb, intfnum);
1870 break;
1871
1872 default:
1873 dev_warn(ictx->dev, "imon %s: status(%d): ignored\n",
1874 __func__, urb->status);
1875 break;
1876 }
1877
1878out:
1879 usb_submit_urb(ictx->rx_urb_intf0, GFP_ATOMIC);
1880}
1881
1882static void usb_rx_callback_intf1(struct urb *urb)
1883{
1884 struct imon_context *ictx;
1885 int intfnum = 1;
1886
1887 if (!urb)
1888 return;
1889
1890 ictx = (struct imon_context *)urb->context;
1891 if (!ictx)
1892 return;
1893
1894
1895
1896
1897
1898
1899 if (!ictx->dev_present_intf1)
1900 goto out;
1901
1902 switch (urb->status) {
1903 case -ENOENT:
1904 return;
1905
1906 case -ESHUTDOWN:
1907 break;
1908
1909 case 0:
1910 if (ictx->rdev->driver_type == RC_DRIVER_IR_RAW)
1911 imon_incoming_ir_raw(ictx, urb, intfnum);
1912 else
1913 imon_incoming_scancode(ictx, urb, intfnum);
1914 break;
1915
1916 default:
1917 dev_warn(ictx->dev, "imon %s: status(%d): ignored\n",
1918 __func__, urb->status);
1919 break;
1920 }
1921
1922out:
1923 usb_submit_urb(ictx->rx_urb_intf1, GFP_ATOMIC);
1924}
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935static void imon_get_ffdc_type(struct imon_context *ictx)
1936{
1937 u8 ffdc_cfg_byte = ictx->usb_rx_buf[6];
1938 u8 detected_display_type = IMON_DISPLAY_TYPE_NONE;
1939 u64 allowed_protos = RC_BIT_OTHER;
1940
1941 switch (ffdc_cfg_byte) {
1942
1943 case 0x21:
1944 dev_info(ictx->dev, "0xffdc iMON Knob, iMON IR");
1945 ictx->display_supported = false;
1946 break;
1947
1948 case 0x4e:
1949 dev_info(ictx->dev, "0xffdc iMON 2.4G LT, iMON RF");
1950 ictx->display_supported = false;
1951 ictx->rf_device = true;
1952 break;
1953
1954 case 0x35:
1955 dev_info(ictx->dev, "0xffdc iMON VFD + knob, no IR");
1956 detected_display_type = IMON_DISPLAY_TYPE_VFD;
1957 break;
1958
1959 case 0x24:
1960 case 0x85:
1961 dev_info(ictx->dev, "0xffdc iMON VFD, iMON IR");
1962 detected_display_type = IMON_DISPLAY_TYPE_VFD;
1963 break;
1964
1965 case 0x46:
1966 case 0x7e:
1967 case 0x9e:
1968 dev_info(ictx->dev, "0xffdc iMON VFD, MCE IR");
1969 detected_display_type = IMON_DISPLAY_TYPE_VFD;
1970 allowed_protos = RC_BIT_RC6_MCE;
1971 break;
1972
1973 case 0x9f:
1974 dev_info(ictx->dev, "0xffdc iMON LCD, MCE IR");
1975 detected_display_type = IMON_DISPLAY_TYPE_LCD;
1976 allowed_protos = RC_BIT_RC6_MCE;
1977 break;
1978 default:
1979 dev_info(ictx->dev, "Unknown 0xffdc device, defaulting to VFD and iMON IR");
1980 detected_display_type = IMON_DISPLAY_TYPE_VFD;
1981
1982
1983 allowed_protos |= RC_BIT_RC6_MCE;
1984 break;
1985 }
1986
1987 printk(KERN_CONT " (id 0x%02x)\n", ffdc_cfg_byte);
1988
1989 ictx->display_type = detected_display_type;
1990 ictx->rc_type = allowed_protos;
1991}
1992
1993static void imon_set_display_type(struct imon_context *ictx)
1994{
1995 u8 configured_display_type = IMON_DISPLAY_TYPE_VFD;
1996
1997
1998
1999
2000
2001
2002 if (display_type == IMON_DISPLAY_TYPE_AUTO) {
2003 switch (ictx->product) {
2004 case 0xffdc:
2005
2006 configured_display_type = ictx->display_type;
2007 break;
2008 case 0x0034:
2009 case 0x0035:
2010 configured_display_type = IMON_DISPLAY_TYPE_VGA;
2011 break;
2012 case 0x0038:
2013 case 0x0039:
2014 case 0x0045:
2015 configured_display_type = IMON_DISPLAY_TYPE_LCD;
2016 break;
2017 case 0x003c:
2018 case 0x0041:
2019 case 0x0042:
2020 case 0x0043:
2021 case 0x8001:
2022 case 0xff30:
2023 configured_display_type = IMON_DISPLAY_TYPE_NONE;
2024 ictx->display_supported = false;
2025 break;
2026 case 0x0036:
2027 case 0x0044:
2028 case 0xffda:
2029 default:
2030 configured_display_type = IMON_DISPLAY_TYPE_VFD;
2031 break;
2032 }
2033 } else {
2034 configured_display_type = display_type;
2035 if (display_type == IMON_DISPLAY_TYPE_NONE)
2036 ictx->display_supported = false;
2037 else
2038 ictx->display_supported = true;
2039 dev_info(ictx->dev, "%s: overriding display type to %d via modparam\n",
2040 __func__, display_type);
2041 }
2042
2043 ictx->display_type = configured_display_type;
2044}
2045
2046static struct rc_dev *imon_init_rdev(struct imon_context *ictx)
2047{
2048 struct rc_dev *rdev;
2049 int ret;
2050 const unsigned char fp_packet[] = { 0x40, 0x00, 0x00, 0x00,
2051 0x00, 0x00, 0x00, 0x88 };
2052
2053 rdev = rc_allocate_device(ictx->dev_descr->flags & IMON_IR_RAW ?
2054 RC_DRIVER_IR_RAW : RC_DRIVER_SCANCODE);
2055 if (!rdev) {
2056 dev_err(ictx->dev, "remote control dev allocation failed\n");
2057 goto out;
2058 }
2059
2060 snprintf(ictx->name_rdev, sizeof(ictx->name_rdev),
2061 "iMON Remote (%04x:%04x)", ictx->vendor, ictx->product);
2062 usb_make_path(ictx->usbdev_intf0, ictx->phys_rdev,
2063 sizeof(ictx->phys_rdev));
2064 strlcat(ictx->phys_rdev, "/input0", sizeof(ictx->phys_rdev));
2065
2066 rdev->input_name = ictx->name_rdev;
2067 rdev->input_phys = ictx->phys_rdev;
2068 usb_to_input_id(ictx->usbdev_intf0, &rdev->input_id);
2069 rdev->dev.parent = ictx->dev;
2070
2071 rdev->priv = ictx;
2072 if (ictx->dev_descr->flags & IMON_IR_RAW)
2073 rdev->allowed_protocols = RC_BIT_ALL_IR_DECODER;
2074 else
2075
2076 rdev->allowed_protocols = RC_BIT_OTHER | RC_BIT_RC6_MCE;
2077 rdev->change_protocol = imon_ir_change_protocol;
2078 rdev->driver_name = MOD_NAME;
2079
2080
2081 memcpy(ictx->usb_tx_buf, &fp_packet, sizeof(fp_packet));
2082 ret = send_packet(ictx);
2083
2084 if (ret)
2085 dev_info(ictx->dev, "panel buttons/knobs setup failed\n");
2086
2087 if (ictx->product == 0xffdc) {
2088 imon_get_ffdc_type(ictx);
2089 rdev->allowed_protocols = ictx->rc_type;
2090 }
2091
2092 imon_set_display_type(ictx);
2093
2094 if (ictx->rc_type == RC_BIT_RC6_MCE ||
2095 ictx->dev_descr->flags & IMON_IR_RAW)
2096 rdev->map_name = RC_MAP_IMON_MCE;
2097 else
2098 rdev->map_name = RC_MAP_IMON_PAD;
2099
2100 ret = rc_register_device(rdev);
2101 if (ret < 0) {
2102 dev_err(ictx->dev, "remote input dev register failed\n");
2103 goto out;
2104 }
2105
2106 return rdev;
2107
2108out:
2109 rc_free_device(rdev);
2110 return NULL;
2111}
2112
2113static struct input_dev *imon_init_idev(struct imon_context *ictx)
2114{
2115 struct imon_panel_key_table *key_table = ictx->dev_descr->key_table;
2116 struct input_dev *idev;
2117 int ret, i;
2118
2119 idev = input_allocate_device();
2120 if (!idev)
2121 goto out;
2122
2123 snprintf(ictx->name_idev, sizeof(ictx->name_idev),
2124 "iMON Panel, Knob and Mouse(%04x:%04x)",
2125 ictx->vendor, ictx->product);
2126 idev->name = ictx->name_idev;
2127
2128 usb_make_path(ictx->usbdev_intf0, ictx->phys_idev,
2129 sizeof(ictx->phys_idev));
2130 strlcat(ictx->phys_idev, "/input1", sizeof(ictx->phys_idev));
2131 idev->phys = ictx->phys_idev;
2132
2133 idev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP) | BIT_MASK(EV_REL);
2134
2135 idev->keybit[BIT_WORD(BTN_MOUSE)] =
2136 BIT_MASK(BTN_LEFT) | BIT_MASK(BTN_RIGHT);
2137 idev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y) |
2138 BIT_MASK(REL_WHEEL);
2139
2140
2141 for (i = 0; key_table[i].hw_code != 0; i++) {
2142 u32 kc = key_table[i].keycode;
2143 __set_bit(kc, idev->keybit);
2144 }
2145
2146 usb_to_input_id(ictx->usbdev_intf0, &idev->id);
2147 idev->dev.parent = ictx->dev;
2148 input_set_drvdata(idev, ictx);
2149
2150 ret = input_register_device(idev);
2151 if (ret < 0) {
2152 dev_err(ictx->dev, "input dev register failed\n");
2153 goto out;
2154 }
2155
2156 return idev;
2157
2158out:
2159 input_free_device(idev);
2160 return NULL;
2161}
2162
2163static struct input_dev *imon_init_touch(struct imon_context *ictx)
2164{
2165 struct input_dev *touch;
2166 int ret;
2167
2168 touch = input_allocate_device();
2169 if (!touch)
2170 goto touch_alloc_failed;
2171
2172 snprintf(ictx->name_touch, sizeof(ictx->name_touch),
2173 "iMON USB Touchscreen (%04x:%04x)",
2174 ictx->vendor, ictx->product);
2175 touch->name = ictx->name_touch;
2176
2177 usb_make_path(ictx->usbdev_intf1, ictx->phys_touch,
2178 sizeof(ictx->phys_touch));
2179 strlcat(ictx->phys_touch, "/input2", sizeof(ictx->phys_touch));
2180 touch->phys = ictx->phys_touch;
2181
2182 touch->evbit[0] =
2183 BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
2184 touch->keybit[BIT_WORD(BTN_TOUCH)] =
2185 BIT_MASK(BTN_TOUCH);
2186 input_set_abs_params(touch, ABS_X,
2187 0x00, 0xfff, 0, 0);
2188 input_set_abs_params(touch, ABS_Y,
2189 0x00, 0xfff, 0, 0);
2190
2191 input_set_drvdata(touch, ictx);
2192
2193 usb_to_input_id(ictx->usbdev_intf1, &touch->id);
2194 touch->dev.parent = ictx->dev;
2195 ret = input_register_device(touch);
2196 if (ret < 0) {
2197 dev_info(ictx->dev, "touchscreen input dev register failed\n");
2198 goto touch_register_failed;
2199 }
2200
2201 return touch;
2202
2203touch_register_failed:
2204 input_free_device(touch);
2205
2206touch_alloc_failed:
2207 return NULL;
2208}
2209
2210static bool imon_find_endpoints(struct imon_context *ictx,
2211 struct usb_host_interface *iface_desc)
2212{
2213 struct usb_endpoint_descriptor *ep;
2214 struct usb_endpoint_descriptor *rx_endpoint = NULL;
2215 struct usb_endpoint_descriptor *tx_endpoint = NULL;
2216 int ifnum = iface_desc->desc.bInterfaceNumber;
2217 int num_endpts = iface_desc->desc.bNumEndpoints;
2218 int i, ep_dir, ep_type;
2219 bool ir_ep_found = false;
2220 bool display_ep_found = false;
2221 bool tx_control = false;
2222
2223
2224
2225
2226
2227
2228 for (i = 0; i < num_endpts && !(ir_ep_found && display_ep_found); ++i) {
2229 ep = &iface_desc->endpoint[i].desc;
2230 ep_dir = ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK;
2231 ep_type = usb_endpoint_type(ep);
2232
2233 if (!ir_ep_found && ep_dir == USB_DIR_IN &&
2234 ep_type == USB_ENDPOINT_XFER_INT) {
2235
2236 rx_endpoint = ep;
2237 ir_ep_found = true;
2238 dev_dbg(ictx->dev, "%s: found IR endpoint\n", __func__);
2239
2240 } else if (!display_ep_found && ep_dir == USB_DIR_OUT &&
2241 ep_type == USB_ENDPOINT_XFER_INT) {
2242 tx_endpoint = ep;
2243 display_ep_found = true;
2244 dev_dbg(ictx->dev, "%s: found display endpoint\n", __func__);
2245 }
2246 }
2247
2248 if (ifnum == 0) {
2249 ictx->rx_endpoint_intf0 = rx_endpoint;
2250
2251
2252
2253
2254 ictx->tx_endpoint = tx_endpoint;
2255 } else {
2256 ictx->rx_endpoint_intf1 = rx_endpoint;
2257 }
2258
2259
2260
2261
2262
2263 if (!display_ep_found) {
2264 tx_control = true;
2265 display_ep_found = true;
2266 dev_dbg(ictx->dev, "%s: device uses control endpoint, not interface OUT endpoint\n",
2267 __func__);
2268 }
2269
2270
2271
2272
2273
2274
2275 if (ictx->display_type == IMON_DISPLAY_TYPE_NONE) {
2276 display_ep_found = false;
2277 dev_dbg(ictx->dev, "%s: device has no display\n", __func__);
2278 }
2279
2280
2281
2282
2283
2284 if (ictx->display_type == IMON_DISPLAY_TYPE_VGA) {
2285 display_ep_found = false;
2286 dev_dbg(ictx->dev, "%s: iMON Touch device found\n", __func__);
2287 }
2288
2289
2290 if (!ir_ep_found)
2291 pr_err("no valid input (IR) endpoint found\n");
2292
2293 ictx->tx_control = tx_control;
2294
2295 if (display_ep_found)
2296 ictx->display_supported = true;
2297
2298 return ir_ep_found;
2299
2300}
2301
2302static struct imon_context *imon_init_intf0(struct usb_interface *intf,
2303 const struct usb_device_id *id)
2304{
2305 struct imon_context *ictx;
2306 struct urb *rx_urb;
2307 struct urb *tx_urb;
2308 struct device *dev = &intf->dev;
2309 struct usb_host_interface *iface_desc;
2310 int ret = -ENOMEM;
2311
2312 ictx = kzalloc(sizeof(struct imon_context), GFP_KERNEL);
2313 if (!ictx) {
2314 dev_err(dev, "%s: kzalloc failed for context", __func__);
2315 goto exit;
2316 }
2317 rx_urb = usb_alloc_urb(0, GFP_KERNEL);
2318 if (!rx_urb)
2319 goto rx_urb_alloc_failed;
2320 tx_urb = usb_alloc_urb(0, GFP_KERNEL);
2321 if (!tx_urb)
2322 goto tx_urb_alloc_failed;
2323
2324 mutex_init(&ictx->lock);
2325 spin_lock_init(&ictx->kc_lock);
2326
2327 mutex_lock(&ictx->lock);
2328
2329 ictx->dev = dev;
2330 ictx->usbdev_intf0 = usb_get_dev(interface_to_usbdev(intf));
2331 ictx->rx_urb_intf0 = rx_urb;
2332 ictx->tx_urb = tx_urb;
2333 ictx->rf_device = false;
2334
2335 init_completion(&ictx->tx.finished);
2336
2337 ictx->vendor = le16_to_cpu(ictx->usbdev_intf0->descriptor.idVendor);
2338 ictx->product = le16_to_cpu(ictx->usbdev_intf0->descriptor.idProduct);
2339
2340
2341 ictx->dev_descr = (struct imon_usb_dev_descr *)id->driver_info;
2342
2343 ictx->send_packet_delay = ictx->dev_descr->flags &
2344 IMON_NEED_20MS_PKT_DELAY ? 20 : 5;
2345
2346 ret = -ENODEV;
2347 iface_desc = intf->cur_altsetting;
2348 if (!imon_find_endpoints(ictx, iface_desc)) {
2349 goto find_endpoint_failed;
2350 }
2351
2352 usb_fill_int_urb(ictx->rx_urb_intf0, ictx->usbdev_intf0,
2353 usb_rcvintpipe(ictx->usbdev_intf0,
2354 ictx->rx_endpoint_intf0->bEndpointAddress),
2355 ictx->usb_rx_buf, sizeof(ictx->usb_rx_buf),
2356 usb_rx_callback_intf0, ictx,
2357 ictx->rx_endpoint_intf0->bInterval);
2358
2359 ret = usb_submit_urb(ictx->rx_urb_intf0, GFP_KERNEL);
2360 if (ret) {
2361 pr_err("usb_submit_urb failed for intf0 (%d)\n", ret);
2362 goto urb_submit_failed;
2363 }
2364
2365 ictx->idev = imon_init_idev(ictx);
2366 if (!ictx->idev) {
2367 dev_err(dev, "%s: input device setup failed\n", __func__);
2368 goto idev_setup_failed;
2369 }
2370
2371 ictx->rdev = imon_init_rdev(ictx);
2372 if (!ictx->rdev) {
2373 dev_err(dev, "%s: rc device setup failed\n", __func__);
2374 goto rdev_setup_failed;
2375 }
2376
2377 ictx->dev_present_intf0 = true;
2378
2379 mutex_unlock(&ictx->lock);
2380 return ictx;
2381
2382rdev_setup_failed:
2383 input_unregister_device(ictx->idev);
2384idev_setup_failed:
2385 usb_kill_urb(ictx->rx_urb_intf0);
2386urb_submit_failed:
2387find_endpoint_failed:
2388 usb_put_dev(ictx->usbdev_intf0);
2389 mutex_unlock(&ictx->lock);
2390 usb_free_urb(tx_urb);
2391tx_urb_alloc_failed:
2392 usb_free_urb(rx_urb);
2393rx_urb_alloc_failed:
2394 kfree(ictx);
2395exit:
2396 dev_err(dev, "unable to initialize intf0, err %d\n", ret);
2397
2398 return NULL;
2399}
2400
2401static struct imon_context *imon_init_intf1(struct usb_interface *intf,
2402 struct imon_context *ictx)
2403{
2404 struct urb *rx_urb;
2405 struct usb_host_interface *iface_desc;
2406 int ret = -ENOMEM;
2407
2408 rx_urb = usb_alloc_urb(0, GFP_KERNEL);
2409 if (!rx_urb)
2410 goto rx_urb_alloc_failed;
2411
2412 mutex_lock(&ictx->lock);
2413
2414 if (ictx->display_type == IMON_DISPLAY_TYPE_VGA) {
2415 setup_timer(&ictx->ttimer, imon_touch_display_timeout,
2416 (unsigned long)ictx);
2417 }
2418
2419 ictx->usbdev_intf1 = usb_get_dev(interface_to_usbdev(intf));
2420 ictx->rx_urb_intf1 = rx_urb;
2421
2422 ret = -ENODEV;
2423 iface_desc = intf->cur_altsetting;
2424 if (!imon_find_endpoints(ictx, iface_desc))
2425 goto find_endpoint_failed;
2426
2427 if (ictx->display_type == IMON_DISPLAY_TYPE_VGA) {
2428 ictx->touch = imon_init_touch(ictx);
2429 if (!ictx->touch)
2430 goto touch_setup_failed;
2431 } else
2432 ictx->touch = NULL;
2433
2434 usb_fill_int_urb(ictx->rx_urb_intf1, ictx->usbdev_intf1,
2435 usb_rcvintpipe(ictx->usbdev_intf1,
2436 ictx->rx_endpoint_intf1->bEndpointAddress),
2437 ictx->usb_rx_buf, sizeof(ictx->usb_rx_buf),
2438 usb_rx_callback_intf1, ictx,
2439 ictx->rx_endpoint_intf1->bInterval);
2440
2441 ret = usb_submit_urb(ictx->rx_urb_intf1, GFP_KERNEL);
2442
2443 if (ret) {
2444 pr_err("usb_submit_urb failed for intf1 (%d)\n", ret);
2445 goto urb_submit_failed;
2446 }
2447
2448 ictx->dev_present_intf1 = true;
2449
2450 mutex_unlock(&ictx->lock);
2451 return ictx;
2452
2453urb_submit_failed:
2454 if (ictx->touch)
2455 input_unregister_device(ictx->touch);
2456touch_setup_failed:
2457find_endpoint_failed:
2458 usb_put_dev(ictx->usbdev_intf1);
2459 mutex_unlock(&ictx->lock);
2460 usb_free_urb(rx_urb);
2461rx_urb_alloc_failed:
2462 dev_err(ictx->dev, "unable to initialize intf1, err %d\n", ret);
2463
2464 return NULL;
2465}
2466
2467static void imon_init_display(struct imon_context *ictx,
2468 struct usb_interface *intf)
2469{
2470 int ret;
2471
2472 dev_dbg(ictx->dev, "Registering iMON display with sysfs\n");
2473
2474
2475 ret = sysfs_create_group(&intf->dev.kobj, &imon_display_attr_group);
2476 if (ret)
2477 dev_err(ictx->dev, "Could not create display sysfs entries(%d)",
2478 ret);
2479
2480 if (ictx->display_type == IMON_DISPLAY_TYPE_LCD)
2481 ret = usb_register_dev(intf, &imon_lcd_class);
2482 else
2483 ret = usb_register_dev(intf, &imon_vfd_class);
2484 if (ret)
2485
2486 dev_info(ictx->dev, "could not get a minor number for display\n");
2487
2488}
2489
2490
2491
2492
2493static int imon_probe(struct usb_interface *interface,
2494 const struct usb_device_id *id)
2495{
2496 struct usb_device *usbdev = NULL;
2497 struct usb_host_interface *iface_desc = NULL;
2498 struct usb_interface *first_if;
2499 struct device *dev = &interface->dev;
2500 int ifnum, sysfs_err;
2501 int ret = 0;
2502 struct imon_context *ictx = NULL;
2503 struct imon_context *first_if_ctx = NULL;
2504 u16 vendor, product;
2505
2506 usbdev = usb_get_dev(interface_to_usbdev(interface));
2507 iface_desc = interface->cur_altsetting;
2508 ifnum = iface_desc->desc.bInterfaceNumber;
2509 vendor = le16_to_cpu(usbdev->descriptor.idVendor);
2510 product = le16_to_cpu(usbdev->descriptor.idProduct);
2511
2512 dev_dbg(dev, "%s: found iMON device (%04x:%04x, intf%d)\n",
2513 __func__, vendor, product, ifnum);
2514
2515
2516 mutex_lock(&driver_lock);
2517
2518 first_if = usb_ifnum_to_if(usbdev, 0);
2519 first_if_ctx = usb_get_intfdata(first_if);
2520
2521 if (ifnum == 0) {
2522 ictx = imon_init_intf0(interface, id);
2523 if (!ictx) {
2524 pr_err("failed to initialize context!\n");
2525 ret = -ENODEV;
2526 goto fail;
2527 }
2528
2529 } else {
2530
2531
2532
2533 if (!first_if_ctx) {
2534 ret = -ENODEV;
2535 goto fail;
2536 }
2537
2538 ictx = imon_init_intf1(interface, first_if_ctx);
2539 if (!ictx) {
2540 pr_err("failed to attach to context!\n");
2541 ret = -ENODEV;
2542 goto fail;
2543 }
2544
2545 }
2546
2547 usb_set_intfdata(interface, ictx);
2548
2549 if (ifnum == 0) {
2550 mutex_lock(&ictx->lock);
2551
2552 if (product == 0xffdc && ictx->rf_device) {
2553 sysfs_err = sysfs_create_group(&interface->dev.kobj,
2554 &imon_rf_attr_group);
2555 if (sysfs_err)
2556 pr_err("Could not create RF sysfs entries(%d)\n",
2557 sysfs_err);
2558 }
2559
2560 if (ictx->display_supported)
2561 imon_init_display(ictx, interface);
2562
2563 mutex_unlock(&ictx->lock);
2564 }
2565
2566 dev_info(dev, "iMON device (%04x:%04x, intf%d) on usb<%d:%d> initialized\n",
2567 vendor, product, ifnum,
2568 usbdev->bus->busnum, usbdev->devnum);
2569
2570 mutex_unlock(&driver_lock);
2571 usb_put_dev(usbdev);
2572
2573 return 0;
2574
2575fail:
2576 mutex_unlock(&driver_lock);
2577 usb_put_dev(usbdev);
2578 dev_err(dev, "unable to register, err %d\n", ret);
2579
2580 return ret;
2581}
2582
2583
2584
2585
2586static void imon_disconnect(struct usb_interface *interface)
2587{
2588 struct imon_context *ictx;
2589 struct device *dev;
2590 int ifnum;
2591
2592
2593 mutex_lock(&driver_lock);
2594
2595 ictx = usb_get_intfdata(interface);
2596 dev = ictx->dev;
2597 ifnum = interface->cur_altsetting->desc.bInterfaceNumber;
2598
2599
2600
2601
2602
2603 sysfs_remove_group(&interface->dev.kobj, &imon_display_attr_group);
2604 sysfs_remove_group(&interface->dev.kobj, &imon_rf_attr_group);
2605
2606 usb_set_intfdata(interface, NULL);
2607
2608
2609 if (ictx->tx.busy) {
2610 usb_kill_urb(ictx->tx_urb);
2611 complete(&ictx->tx.finished);
2612 }
2613
2614 if (ifnum == 0) {
2615 ictx->dev_present_intf0 = false;
2616 usb_kill_urb(ictx->rx_urb_intf0);
2617 usb_put_dev(ictx->usbdev_intf0);
2618 input_unregister_device(ictx->idev);
2619 rc_unregister_device(ictx->rdev);
2620 if (ictx->display_supported) {
2621 if (ictx->display_type == IMON_DISPLAY_TYPE_LCD)
2622 usb_deregister_dev(interface, &imon_lcd_class);
2623 else if (ictx->display_type == IMON_DISPLAY_TYPE_VFD)
2624 usb_deregister_dev(interface, &imon_vfd_class);
2625 }
2626 } else {
2627 ictx->dev_present_intf1 = false;
2628 usb_kill_urb(ictx->rx_urb_intf1);
2629 usb_put_dev(ictx->usbdev_intf1);
2630 if (ictx->display_type == IMON_DISPLAY_TYPE_VGA) {
2631 input_unregister_device(ictx->touch);
2632 del_timer_sync(&ictx->ttimer);
2633 }
2634 }
2635
2636 if (!ictx->dev_present_intf0 && !ictx->dev_present_intf1)
2637 free_imon_context(ictx);
2638
2639 mutex_unlock(&driver_lock);
2640
2641 dev_dbg(dev, "%s: iMON device (intf%d) disconnected\n",
2642 __func__, ifnum);
2643}
2644
2645static int imon_suspend(struct usb_interface *intf, pm_message_t message)
2646{
2647 struct imon_context *ictx = usb_get_intfdata(intf);
2648 int ifnum = intf->cur_altsetting->desc.bInterfaceNumber;
2649
2650 if (ifnum == 0)
2651 usb_kill_urb(ictx->rx_urb_intf0);
2652 else
2653 usb_kill_urb(ictx->rx_urb_intf1);
2654
2655 return 0;
2656}
2657
2658static int imon_resume(struct usb_interface *intf)
2659{
2660 int rc = 0;
2661 struct imon_context *ictx = usb_get_intfdata(intf);
2662 int ifnum = intf->cur_altsetting->desc.bInterfaceNumber;
2663
2664 if (ifnum == 0) {
2665 usb_fill_int_urb(ictx->rx_urb_intf0, ictx->usbdev_intf0,
2666 usb_rcvintpipe(ictx->usbdev_intf0,
2667 ictx->rx_endpoint_intf0->bEndpointAddress),
2668 ictx->usb_rx_buf, sizeof(ictx->usb_rx_buf),
2669 usb_rx_callback_intf0, ictx,
2670 ictx->rx_endpoint_intf0->bInterval);
2671
2672 rc = usb_submit_urb(ictx->rx_urb_intf0, GFP_ATOMIC);
2673
2674 } else {
2675 usb_fill_int_urb(ictx->rx_urb_intf1, ictx->usbdev_intf1,
2676 usb_rcvintpipe(ictx->usbdev_intf1,
2677 ictx->rx_endpoint_intf1->bEndpointAddress),
2678 ictx->usb_rx_buf, sizeof(ictx->usb_rx_buf),
2679 usb_rx_callback_intf1, ictx,
2680 ictx->rx_endpoint_intf1->bInterval);
2681
2682 rc = usb_submit_urb(ictx->rx_urb_intf1, GFP_ATOMIC);
2683 }
2684
2685 return rc;
2686}
2687
2688module_usb_driver(imon_driver);
2689