2 * imon.c: input and display driver for SoundGraph iMON IR/VFD/LCD
4 * Copyright(C) 2009 Jarod Wilson <jarod@wilsonet.com>
5 * Portions based on the original lirc_imon driver,
6 * Copyright(C) 2004 Venky Raju(dev@venky.ws)
8 * Huge thanks to R. Geoff Newbury for invaluable debugging on the
9 * 0xffdc iMON devices, and for sending me one to hack on, without
10 * which the support for them wouldn't be nearly as good. Thanks
11 * also to the numerous 0xffdc device owners that tested auto-config
12 * support for me and provided debug dumps from their devices.
14 * imon is free software; you can redistribute it and/or modify
15 * it under the terms of the GNU General Public License as published by
16 * the Free Software Foundation; either version 2 of the License, or
17 * (at your option) any later version.
19 * This program is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
24 * You should have received a copy of the GNU General Public License
25 * along with this program; if not, write to the Free Software
26 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
29 #include <linux/errno.h>
30 #include <linux/init.h>
31 #include <linux/kernel.h>
32 #include <linux/module.h>
33 #include <linux/slab.h>
34 #include <linux/uaccess.h>
36 #include <linux/input.h>
37 #include <linux/usb.h>
38 #include <linux/usb/input.h>
39 #include <media/ir-core.h>
41 #include <linux/time.h>
42 #include <linux/timer.h>
44 #define MOD_AUTHOR "Jarod Wilson <jarod@wilsonet.com>"
45 #define MOD_DESC "Driver for SoundGraph iMON MultiMedia IR/Display"
46 #define MOD_NAME "imon"
47 #define MOD_VERSION "0.9.1"
49 #define DISPLAY_MINOR_BASE 144
50 #define DEVICE_NAME "lcd%d"
52 #define BUF_CHUNK_SIZE 8
55 #define BIT_DURATION 250 /* each bit received is 250us */
57 #define IMON_CLOCK_ENABLE_PACKETS 2
59 /*** P R O T O T Y P E S ***/
61 /* USB Callback prototypes */
62 static int imon_probe(struct usb_interface
*interface
,
63 const struct usb_device_id
*id
);
64 static void imon_disconnect(struct usb_interface
*interface
);
65 static void usb_rx_callback_intf0(struct urb
*urb
);
66 static void usb_rx_callback_intf1(struct urb
*urb
);
67 static void usb_tx_callback(struct urb
*urb
);
69 /* suspend/resume support */
70 static int imon_resume(struct usb_interface
*intf
);
71 static int imon_suspend(struct usb_interface
*intf
, pm_message_t message
);
73 /* Display file_operations function prototypes */
74 static int display_open(struct inode
*inode
, struct file
*file
);
75 static int display_close(struct inode
*inode
, struct file
*file
);
77 /* VFD write operation */
78 static ssize_t
vfd_write(struct file
*file
, const char *buf
,
79 size_t n_bytes
, loff_t
*pos
);
81 /* LCD file_operations override function prototypes */
82 static ssize_t
lcd_write(struct file
*file
, const char *buf
,
83 size_t n_bytes
, loff_t
*pos
);
85 /*** G L O B A L S ***/
89 struct ir_dev_props
*props
;
90 struct ir_input_dev
*ir
;
91 /* Newer devices have two interfaces */
92 struct usb_device
*usbdev_intf0
;
93 struct usb_device
*usbdev_intf1
;
95 bool display_supported
; /* not all controllers do */
96 bool display_isopen
; /* display port has been opened */
97 bool rf_device
; /* true if iMON 2.4G LT/DT RF device */
98 bool rf_isassociating
; /* RF remote associating */
99 bool dev_present_intf0
; /* USB device presence, interface 0 */
100 bool dev_present_intf1
; /* USB device presence, interface 1 */
102 struct mutex lock
; /* to lock this object */
103 wait_queue_head_t remove_ok
; /* For unexpected USB disconnects */
105 struct usb_endpoint_descriptor
*rx_endpoint_intf0
;
106 struct usb_endpoint_descriptor
*rx_endpoint_intf1
;
107 struct usb_endpoint_descriptor
*tx_endpoint
;
108 struct urb
*rx_urb_intf0
;
109 struct urb
*rx_urb_intf1
;
112 unsigned char usb_rx_buf
[8];
113 unsigned char usb_tx_buf
[8];
116 unsigned char data_buf
[35]; /* user data buffer */
117 struct completion finished
; /* wait for write to finish */
118 bool busy
; /* write in progress */
119 int status
; /* status of tx completion */
122 u16 vendor
; /* usb vendor ID */
123 u16 product
; /* usb product ID */
125 struct input_dev
*idev
; /* input device for remote */
126 struct input_dev
*touch
; /* input device for touchscreen */
128 u32 kc
; /* current input keycode */
129 u32 last_keycode
; /* last reported input keycode */
130 u64 ir_type
; /* iMON or MCE (RC6) IR protocol? */
131 u8 mce_toggle_bit
; /* last mce toggle bit */
132 bool release_code
; /* some keys send a release code */
134 u8 display_type
; /* store the display type */
135 bool pad_mouse
; /* toggle kbd(0)/mouse(1) mode */
137 char name_idev
[128]; /* input device name */
138 char phys_idev
[64]; /* input device phys path */
139 struct timer_list itimer
; /* input device timer, need for rc6 */
141 char name_touch
[128]; /* touch screen name */
142 char phys_touch
[64]; /* touch screen phys path */
143 struct timer_list ttimer
; /* touch screen timer */
144 int touch_x
; /* x coordinate on touchscreen */
145 int touch_y
; /* y coordinate on touchscreen */
148 #define TOUCH_TIMEOUT (HZ/30)
150 /* vfd character device file operations */
151 static const struct file_operations vfd_fops
= {
152 .owner
= THIS_MODULE
,
153 .open
= &display_open
,
155 .release
= &display_close
158 /* lcd character device file operations */
159 static const struct file_operations lcd_fops
= {
160 .owner
= THIS_MODULE
,
161 .open
= &display_open
,
163 .release
= &display_close
167 IMON_DISPLAY_TYPE_AUTO
= 0,
168 IMON_DISPLAY_TYPE_VFD
= 1,
169 IMON_DISPLAY_TYPE_LCD
= 2,
170 IMON_DISPLAY_TYPE_VGA
= 3,
171 IMON_DISPLAY_TYPE_NONE
= 4,
181 * USB Device ID for iMON USB Control Boards
183 * The Windows drivers contain 6 different inf files, more or less one for
184 * each new device until the 0x0034-0x0046 devices, which all use the same
185 * driver. Some of the devices in the 34-46 range haven't been definitively
186 * identified yet. Early devices have either a TriGem Computer, Inc. or a
187 * Samsung vendor ID (0x0aa8 and 0x04e8 respectively), while all later
188 * devices use the SoundGraph vendor ID (0x15c2). This driver only supports
189 * the ffdc and later devices, which do onboard decoding.
191 static struct usb_device_id imon_usb_id_table
[] = {
193 * Several devices with this same device ID, all use iMON_PAD.inf
194 * SoundGraph iMON PAD (IR & VFD)
195 * SoundGraph iMON PAD (IR & LCD)
196 * SoundGraph iMON Knob (IR only)
198 { USB_DEVICE(0x15c2, 0xffdc) },
201 * Newer devices, all driven by the latest iMON Windows driver, full
202 * list of device IDs extracted via 'strings Setup/data1.hdr |grep 15c2'
203 * Need user input to fill in details on unknown devices.
205 /* SoundGraph iMON OEM Touch LCD (IR & 7" VGA LCD) */
206 { USB_DEVICE(0x15c2, 0x0034) },
207 /* SoundGraph iMON OEM Touch LCD (IR & 4.3" VGA LCD) */
208 { USB_DEVICE(0x15c2, 0x0035) },
209 /* SoundGraph iMON OEM VFD (IR & VFD) */
210 { USB_DEVICE(0x15c2, 0x0036) },
211 /* device specifics unknown */
212 { USB_DEVICE(0x15c2, 0x0037) },
213 /* SoundGraph iMON OEM LCD (IR & LCD) */
214 { USB_DEVICE(0x15c2, 0x0038) },
215 /* SoundGraph iMON UltraBay (IR & LCD) */
216 { USB_DEVICE(0x15c2, 0x0039) },
217 /* device specifics unknown */
218 { USB_DEVICE(0x15c2, 0x003a) },
219 /* device specifics unknown */
220 { USB_DEVICE(0x15c2, 0x003b) },
221 /* SoundGraph iMON OEM Inside (IR only) */
222 { USB_DEVICE(0x15c2, 0x003c) },
223 /* device specifics unknown */
224 { USB_DEVICE(0x15c2, 0x003d) },
225 /* device specifics unknown */
226 { USB_DEVICE(0x15c2, 0x003e) },
227 /* device specifics unknown */
228 { USB_DEVICE(0x15c2, 0x003f) },
229 /* device specifics unknown */
230 { USB_DEVICE(0x15c2, 0x0040) },
231 /* SoundGraph iMON MINI (IR only) */
232 { USB_DEVICE(0x15c2, 0x0041) },
233 /* Antec Veris Multimedia Station EZ External (IR only) */
234 { USB_DEVICE(0x15c2, 0x0042) },
235 /* Antec Veris Multimedia Station Basic Internal (IR only) */
236 { USB_DEVICE(0x15c2, 0x0043) },
237 /* Antec Veris Multimedia Station Elite (IR & VFD) */
238 { USB_DEVICE(0x15c2, 0x0044) },
239 /* Antec Veris Multimedia Station Premiere (IR & LCD) */
240 { USB_DEVICE(0x15c2, 0x0045) },
241 /* device specifics unknown */
242 { USB_DEVICE(0x15c2, 0x0046) },
246 /* USB Device data */
247 static struct usb_driver imon_driver
= {
250 .disconnect
= imon_disconnect
,
251 .suspend
= imon_suspend
,
252 .resume
= imon_resume
,
253 .id_table
= imon_usb_id_table
,
256 static struct usb_class_driver imon_vfd_class
= {
259 .minor_base
= DISPLAY_MINOR_BASE
,
262 static struct usb_class_driver imon_lcd_class
= {
265 .minor_base
= DISPLAY_MINOR_BASE
,
268 /* imon receiver front panel/knob key table */
269 static const struct {
272 } imon_panel_key_table
[] = {
273 { 0x000000000f00ffeell
, KEY_PROG1
}, /* Go */
274 { 0x000000001f00ffeell
, KEY_AUDIO
},
275 { 0x000000002000ffeell
, KEY_VIDEO
},
276 { 0x000000002100ffeell
, KEY_CAMERA
},
277 { 0x000000002700ffeell
, KEY_DVD
},
278 { 0x000000002300ffeell
, KEY_TV
},
279 { 0x000000000500ffeell
, KEY_PREVIOUS
},
280 { 0x000000000700ffeell
, KEY_REWIND
},
281 { 0x000000000400ffeell
, KEY_STOP
},
282 { 0x000000003c00ffeell
, KEY_PLAYPAUSE
},
283 { 0x000000000800ffeell
, KEY_FASTFORWARD
},
284 { 0x000000000600ffeell
, KEY_NEXT
},
285 { 0x000000010000ffeell
, KEY_RIGHT
},
286 { 0x000001000000ffeell
, KEY_LEFT
},
287 { 0x000000003d00ffeell
, KEY_SELECT
},
288 { 0x000100000000ffeell
, KEY_VOLUMEUP
},
289 { 0x010000000000ffeell
, KEY_VOLUMEDOWN
},
290 { 0x000000000100ffeell
, KEY_MUTE
},
291 /* iMON Knob values */
292 { 0x000100ffffffffeell
, KEY_VOLUMEUP
},
293 { 0x010000ffffffffeell
, KEY_VOLUMEDOWN
},
294 { 0x000008ffffffffeell
, KEY_MUTE
},
297 /* to prevent races between open() and disconnect(), probing, etc */
298 static DEFINE_MUTEX(driver_lock
);
300 /* Module bookkeeping bits */
301 MODULE_AUTHOR(MOD_AUTHOR
);
302 MODULE_DESCRIPTION(MOD_DESC
);
303 MODULE_VERSION(MOD_VERSION
);
304 MODULE_LICENSE("GPL");
305 MODULE_DEVICE_TABLE(usb
, imon_usb_id_table
);
308 module_param(debug
, bool, S_IRUGO
| S_IWUSR
);
309 MODULE_PARM_DESC(debug
, "Debug messages: 0=no, 1=yes(default: no)");
311 /* lcd, vfd, vga or none? should be auto-detected, but can be overridden... */
312 static int display_type
;
313 module_param(display_type
, int, S_IRUGO
);
314 MODULE_PARM_DESC(display_type
, "Type of attached display. 0=autodetect, "
315 "1=vfd, 2=lcd, 3=vga, 4=none (default: autodetect)");
317 static int pad_stabilize
= 1;
318 module_param(pad_stabilize
, int, S_IRUGO
| S_IWUSR
);
319 MODULE_PARM_DESC(pad_stabilize
, "Apply stabilization algorithm to iMON PAD "
320 "presses in arrow key mode. 0=disable, 1=enable (default).");
323 * In certain use cases, mouse mode isn't really helpful, and could actually
324 * cause confusion, so allow disabling it when the IR device is open.
327 module_param(nomouse
, bool, S_IRUGO
| S_IWUSR
);
328 MODULE_PARM_DESC(nomouse
, "Disable mouse input device mode when IR device is "
329 "open. 0=don't disable, 1=disable. (default: don't disable)");
331 /* threshold at which a pad push registers as an arrow key in kbd mode */
332 static int pad_thresh
;
333 module_param(pad_thresh
, int, S_IRUGO
| S_IWUSR
);
334 MODULE_PARM_DESC(pad_thresh
, "Threshold at which a pad push registers as an "
335 "arrow key in kbd mode (default: 28)");
338 static void free_imon_context(struct imon_context
*ictx
)
340 struct device
*dev
= ictx
->dev
;
342 usb_free_urb(ictx
->tx_urb
);
343 usb_free_urb(ictx
->rx_urb_intf0
);
344 usb_free_urb(ictx
->rx_urb_intf1
);
347 dev_dbg(dev
, "%s: iMON context freed\n", __func__
);
351 * Called when the Display device (e.g. /dev/lcd0)
352 * is opened by the application.
354 static int display_open(struct inode
*inode
, struct file
*file
)
356 struct usb_interface
*interface
;
357 struct imon_context
*ictx
= NULL
;
361 /* prevent races with disconnect */
362 mutex_lock(&driver_lock
);
364 subminor
= iminor(inode
);
365 interface
= usb_find_interface(&imon_driver
, subminor
);
367 err("%s: could not find interface for minor %d",
372 ictx
= usb_get_intfdata(interface
);
375 err("%s: no context found for minor %d", __func__
, subminor
);
380 mutex_lock(&ictx
->lock
);
382 if (!ictx
->display_supported
) {
383 err("%s: display not supported by device", __func__
);
385 } else if (ictx
->display_isopen
) {
386 err("%s: display port is already open", __func__
);
389 ictx
->display_isopen
= true;
390 file
->private_data
= ictx
;
391 dev_dbg(ictx
->dev
, "display port opened\n");
394 mutex_unlock(&ictx
->lock
);
397 mutex_unlock(&driver_lock
);
402 * Called when the display device (e.g. /dev/lcd0)
403 * is closed by the application.
405 static int display_close(struct inode
*inode
, struct file
*file
)
407 struct imon_context
*ictx
= NULL
;
410 ictx
= (struct imon_context
*)file
->private_data
;
413 err("%s: no context for device", __func__
);
417 mutex_lock(&ictx
->lock
);
419 if (!ictx
->display_supported
) {
420 err("%s: display not supported by device", __func__
);
422 } else if (!ictx
->display_isopen
) {
423 err("%s: display is not open", __func__
);
426 ictx
->display_isopen
= false;
427 dev_dbg(ictx
->dev
, "display port closed\n");
428 if (!ictx
->dev_present_intf0
) {
430 * Device disconnected before close and IR port is not
431 * open. If IR port is open, context will be deleted by
434 mutex_unlock(&ictx
->lock
);
435 free_imon_context(ictx
);
440 mutex_unlock(&ictx
->lock
);
445 * Sends a packet to the device -- this function must be called
446 * with ictx->lock held.
448 static int send_packet(struct imon_context
*ictx
)
451 unsigned long timeout
;
454 struct usb_ctrlrequest
*control_req
= NULL
;
456 /* Check if we need to use control or interrupt urb */
457 if (!ictx
->tx_control
) {
458 pipe
= usb_sndintpipe(ictx
->usbdev_intf0
,
459 ictx
->tx_endpoint
->bEndpointAddress
);
460 interval
= ictx
->tx_endpoint
->bInterval
;
462 usb_fill_int_urb(ictx
->tx_urb
, ictx
->usbdev_intf0
, pipe
,
464 sizeof(ictx
->usb_tx_buf
),
465 usb_tx_callback
, ictx
, interval
);
467 ictx
->tx_urb
->actual_length
= 0;
469 /* fill request into kmalloc'ed space: */
470 control_req
= kmalloc(sizeof(struct usb_ctrlrequest
),
472 if (control_req
== NULL
)
475 /* setup packet is '21 09 0200 0001 0008' */
476 control_req
->bRequestType
= 0x21;
477 control_req
->bRequest
= 0x09;
478 control_req
->wValue
= cpu_to_le16(0x0200);
479 control_req
->wIndex
= cpu_to_le16(0x0001);
480 control_req
->wLength
= cpu_to_le16(0x0008);
482 /* control pipe is endpoint 0x00 */
483 pipe
= usb_sndctrlpipe(ictx
->usbdev_intf0
, 0);
485 /* build the control urb */
486 usb_fill_control_urb(ictx
->tx_urb
, ictx
->usbdev_intf0
,
487 pipe
, (unsigned char *)control_req
,
489 sizeof(ictx
->usb_tx_buf
),
490 usb_tx_callback
, ictx
);
491 ictx
->tx_urb
->actual_length
= 0;
494 init_completion(&ictx
->tx
.finished
);
495 ictx
->tx
.busy
= true;
496 smp_rmb(); /* ensure later readers know we're busy */
498 retval
= usb_submit_urb(ictx
->tx_urb
, GFP_KERNEL
);
500 ictx
->tx
.busy
= false;
501 smp_rmb(); /* ensure later readers know we're not busy */
502 err("%s: error submitting urb(%d)", __func__
, retval
);
504 /* Wait for transmission to complete (or abort) */
505 mutex_unlock(&ictx
->lock
);
506 retval
= wait_for_completion_interruptible(
509 err("%s: task interrupted", __func__
);
510 mutex_lock(&ictx
->lock
);
512 retval
= ictx
->tx
.status
;
514 err("%s: packet tx failed (%d)", __func__
, retval
);
520 * Induce a mandatory 5ms delay before returning, as otherwise,
521 * send_packet can get called so rapidly as to overwhelm the device,
522 * particularly on faster systems and/or those with quirky usb.
524 timeout
= msecs_to_jiffies(5);
525 set_current_state(TASK_UNINTERRUPTIBLE
);
526 schedule_timeout(timeout
);
532 * Sends an associate packet to the iMON 2.4G.
534 * This might not be such a good idea, since it has an id collision with
535 * some versions of the "IR & VFD" combo. The only way to determine if it
536 * is an RF version is to look at the product description string. (Which
537 * we currently do not fetch).
539 static int send_associate_24g(struct imon_context
*ictx
)
542 const unsigned char packet
[8] = { 0x01, 0x00, 0x00, 0x00,
543 0x00, 0x00, 0x00, 0x20 };
546 err("%s: no context for device", __func__
);
550 if (!ictx
->dev_present_intf0
) {
551 err("%s: no iMON device present", __func__
);
555 memcpy(ictx
->usb_tx_buf
, packet
, sizeof(packet
));
556 retval
= send_packet(ictx
);
562 * Sends packets to setup and show clock on iMON display
564 * Arguments: year - last 2 digits of year, month - 1..12,
565 * day - 1..31, dow - day of the week (0-Sun...6-Sat),
566 * hour - 0..23, minute - 0..59, second - 0..59
568 static int send_set_imon_clock(struct imon_context
*ictx
,
569 unsigned int year
, unsigned int month
,
570 unsigned int day
, unsigned int dow
,
571 unsigned int hour
, unsigned int minute
,
574 unsigned char clock_enable_pkt
[IMON_CLOCK_ENABLE_PACKETS
][8];
579 err("%s: no context for device", __func__
);
583 switch (ictx
->display_type
) {
584 case IMON_DISPLAY_TYPE_LCD
:
585 clock_enable_pkt
[0][0] = 0x80;
586 clock_enable_pkt
[0][1] = year
;
587 clock_enable_pkt
[0][2] = month
-1;
588 clock_enable_pkt
[0][3] = day
;
589 clock_enable_pkt
[0][4] = hour
;
590 clock_enable_pkt
[0][5] = minute
;
591 clock_enable_pkt
[0][6] = second
;
593 clock_enable_pkt
[1][0] = 0x80;
594 clock_enable_pkt
[1][1] = 0;
595 clock_enable_pkt
[1][2] = 0;
596 clock_enable_pkt
[1][3] = 0;
597 clock_enable_pkt
[1][4] = 0;
598 clock_enable_pkt
[1][5] = 0;
599 clock_enable_pkt
[1][6] = 0;
601 if (ictx
->product
== 0xffdc) {
602 clock_enable_pkt
[0][7] = 0x50;
603 clock_enable_pkt
[1][7] = 0x51;
605 clock_enable_pkt
[0][7] = 0x88;
606 clock_enable_pkt
[1][7] = 0x8a;
611 case IMON_DISPLAY_TYPE_VFD
:
612 clock_enable_pkt
[0][0] = year
;
613 clock_enable_pkt
[0][1] = month
-1;
614 clock_enable_pkt
[0][2] = day
;
615 clock_enable_pkt
[0][3] = dow
;
616 clock_enable_pkt
[0][4] = hour
;
617 clock_enable_pkt
[0][5] = minute
;
618 clock_enable_pkt
[0][6] = second
;
619 clock_enable_pkt
[0][7] = 0x40;
621 clock_enable_pkt
[1][0] = 0;
622 clock_enable_pkt
[1][1] = 0;
623 clock_enable_pkt
[1][2] = 1;
624 clock_enable_pkt
[1][3] = 0;
625 clock_enable_pkt
[1][4] = 0;
626 clock_enable_pkt
[1][5] = 0;
627 clock_enable_pkt
[1][6] = 0;
628 clock_enable_pkt
[1][7] = 0x42;
636 for (i
= 0; i
< IMON_CLOCK_ENABLE_PACKETS
; i
++) {
637 memcpy(ictx
->usb_tx_buf
, clock_enable_pkt
[i
], 8);
638 retval
= send_packet(ictx
);
640 err("%s: send_packet failed for packet %d",
650 * These are the sysfs functions to handle the association on the iMON 2.4G LT.
652 static ssize_t
show_associate_remote(struct device
*d
,
653 struct device_attribute
*attr
,
656 struct imon_context
*ictx
= dev_get_drvdata(d
);
661 mutex_lock(&ictx
->lock
);
662 if (ictx
->rf_isassociating
)
663 strcpy(buf
, "associating\n");
665 strcpy(buf
, "closed\n");
667 dev_info(d
, "Visit http://www.lirc.org/html/imon-24g.html for "
668 "instructions on how to associate your iMON 2.4G DT/LT "
670 mutex_unlock(&ictx
->lock
);
674 static ssize_t
store_associate_remote(struct device
*d
,
675 struct device_attribute
*attr
,
676 const char *buf
, size_t count
)
678 struct imon_context
*ictx
;
680 ictx
= dev_get_drvdata(d
);
685 mutex_lock(&ictx
->lock
);
686 ictx
->rf_isassociating
= true;
687 send_associate_24g(ictx
);
688 mutex_unlock(&ictx
->lock
);
694 * sysfs functions to control internal imon clock
696 static ssize_t
show_imon_clock(struct device
*d
,
697 struct device_attribute
*attr
, char *buf
)
699 struct imon_context
*ictx
= dev_get_drvdata(d
);
705 mutex_lock(&ictx
->lock
);
707 if (!ictx
->display_supported
) {
708 len
= snprintf(buf
, PAGE_SIZE
, "Not supported.");
710 len
= snprintf(buf
, PAGE_SIZE
,
711 "To set the clock on your iMON display:\n"
712 "# date \"+%%y %%m %%d %%w %%H %%M %%S\" > imon_clock\n"
713 "%s", ictx
->display_isopen
?
714 "\nNOTE: imon device must be closed\n" : "");
717 mutex_unlock(&ictx
->lock
);
722 static ssize_t
store_imon_clock(struct device
*d
,
723 struct device_attribute
*attr
,
724 const char *buf
, size_t count
)
726 struct imon_context
*ictx
= dev_get_drvdata(d
);
728 unsigned int year
, month
, day
, dow
, hour
, minute
, second
;
733 mutex_lock(&ictx
->lock
);
735 if (!ictx
->display_supported
) {
738 } else if (ictx
->display_isopen
) {
743 if (sscanf(buf
, "%u %u %u %u %u %u %u", &year
, &month
, &day
, &dow
,
744 &hour
, &minute
, &second
) != 7) {
749 if ((month
< 1 || month
> 12) ||
750 (day
< 1 || day
> 31) || (dow
> 6) ||
751 (hour
> 23) || (minute
> 59) || (second
> 59)) {
756 retval
= send_set_imon_clock(ictx
, year
, month
, day
, dow
,
757 hour
, minute
, second
);
763 mutex_unlock(&ictx
->lock
);
769 static DEVICE_ATTR(imon_clock
, S_IWUSR
| S_IRUGO
, show_imon_clock
,
772 static DEVICE_ATTR(associate_remote
, S_IWUSR
| S_IRUGO
, show_associate_remote
,
773 store_associate_remote
);
775 static struct attribute
*imon_display_sysfs_entries
[] = {
776 &dev_attr_imon_clock
.attr
,
780 static struct attribute_group imon_display_attribute_group
= {
781 .attrs
= imon_display_sysfs_entries
784 static struct attribute
*imon_rf_sysfs_entries
[] = {
785 &dev_attr_associate_remote
.attr
,
789 static struct attribute_group imon_rf_attribute_group
= {
790 .attrs
= imon_rf_sysfs_entries
794 * Writes data to the VFD. The iMON VFD is 2x16 characters
795 * and requires data in 5 consecutive USB interrupt packets,
796 * each packet but the last carrying 7 bytes.
798 * I don't know if the VFD board supports features such as
799 * scrolling, clearing rows, blanking, etc. so at
800 * the caller must provide a full screen of data. If fewer
801 * than 32 bytes are provided spaces will be appended to
802 * generate a full screen.
804 static ssize_t
vfd_write(struct file
*file
, const char *buf
,
805 size_t n_bytes
, loff_t
*pos
)
811 struct imon_context
*ictx
;
812 const unsigned char vfd_packet6
[] = {
813 0x01, 0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF };
815 ictx
= (struct imon_context
*)file
->private_data
;
817 err("%s: no context for device", __func__
);
821 mutex_lock(&ictx
->lock
);
823 if (!ictx
->dev_present_intf0
) {
824 err("%s: no iMON device present", __func__
);
829 if (n_bytes
<= 0 || n_bytes
> 32) {
830 err("%s: invalid payload size", __func__
);
835 if (copy_from_user(ictx
->tx
.data_buf
, buf
, n_bytes
)) {
840 /* Pad with spaces */
841 for (i
= n_bytes
; i
< 32; ++i
)
842 ictx
->tx
.data_buf
[i
] = ' ';
844 for (i
= 32; i
< 35; ++i
)
845 ictx
->tx
.data_buf
[i
] = 0xFF;
851 memcpy(ictx
->usb_tx_buf
, ictx
->tx
.data_buf
+ offset
, 7);
852 ictx
->usb_tx_buf
[7] = (unsigned char) seq
;
854 retval
= send_packet(ictx
);
856 err("%s: send packet failed for packet #%d",
864 } while (offset
< 35);
867 memcpy(ictx
->usb_tx_buf
, &vfd_packet6
, sizeof(vfd_packet6
));
868 ictx
->usb_tx_buf
[7] = (unsigned char) seq
;
869 retval
= send_packet(ictx
);
871 err("%s: send packet failed for packet #%d",
875 mutex_unlock(&ictx
->lock
);
877 return (!retval
) ? n_bytes
: retval
;
881 * Writes data to the LCD. The iMON OEM LCD screen expects 8-byte
882 * packets. We accept data as 16 hexadecimal digits, followed by a
883 * newline (to make it easy to drive the device from a command-line
884 * -- even though the actual binary data is a bit complicated).
886 * The device itself is not a "traditional" text-mode display. It's
887 * actually a 16x96 pixel bitmap display. That means if you want to
888 * display text, you've got to have your own "font" and translate the
889 * text into bitmaps for display. This is really flexible (you can
890 * display whatever diacritics you need, and so on), but it's also
891 * a lot more complicated than most LCDs...
893 static ssize_t
lcd_write(struct file
*file
, const char *buf
,
894 size_t n_bytes
, loff_t
*pos
)
897 struct imon_context
*ictx
;
899 ictx
= (struct imon_context
*)file
->private_data
;
901 err("%s: no context for device", __func__
);
905 mutex_lock(&ictx
->lock
);
907 if (!ictx
->display_supported
) {
908 err("%s: no iMON display present", __func__
);
914 err("%s: invalid payload size: %d (expecting 8)",
915 __func__
, (int) n_bytes
);
920 if (copy_from_user(ictx
->usb_tx_buf
, buf
, 8)) {
925 retval
= send_packet(ictx
);
927 err("%s: send packet failed!", __func__
);
930 dev_dbg(ictx
->dev
, "%s: write %d bytes to LCD\n",
931 __func__
, (int) n_bytes
);
934 mutex_unlock(&ictx
->lock
);
935 return (!retval
) ? n_bytes
: retval
;
939 * Callback function for USB core API: transmit data
941 static void usb_tx_callback(struct urb
*urb
)
943 struct imon_context
*ictx
;
947 ictx
= (struct imon_context
*)urb
->context
;
951 ictx
->tx
.status
= urb
->status
;
953 /* notify waiters that write has finished */
954 ictx
->tx
.busy
= false;
955 smp_rmb(); /* ensure later readers know we're not busy */
956 complete(&ictx
->tx
.finished
);
960 * mce/rc6 keypresses have no distinct release code, use timer
962 static void imon_mce_timeout(unsigned long data
)
964 struct imon_context
*ictx
= (struct imon_context
*)data
;
966 input_report_key(ictx
->idev
, ictx
->last_keycode
, 0);
967 input_sync(ictx
->idev
);
971 * report touchscreen input
973 static void imon_touch_display_timeout(unsigned long data
)
975 struct imon_context
*ictx
= (struct imon_context
*)data
;
977 if (ictx
->display_type
!= IMON_DISPLAY_TYPE_VGA
)
980 input_report_abs(ictx
->touch
, ABS_X
, ictx
->touch_x
);
981 input_report_abs(ictx
->touch
, ABS_Y
, ictx
->touch_y
);
982 input_report_key(ictx
->touch
, BTN_TOUCH
, 0x00);
983 input_sync(ictx
->touch
);
987 * iMON IR receivers support two different signal sets -- those used by
988 * the iMON remotes, and those used by the Windows MCE remotes (which is
989 * really just RC-6), but only one or the other at a time, as the signals
990 * are decoded onboard the receiver.
992 int imon_ir_change_protocol(void *priv
, u64 ir_type
)
995 struct imon_context
*ictx
= priv
;
996 struct device
*dev
= ictx
->dev
;
998 unsigned char ir_proto_packet
[] = {
999 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x86 };
1001 if (ir_type
&& !(ir_type
& ictx
->props
->allowed_protos
))
1002 dev_warn(dev
, "Looks like you're trying to use an IR protocol "
1003 "this device does not support\n");
1007 dev_dbg(dev
, "Configuring IR receiver for MCE protocol\n");
1008 ir_proto_packet
[0] = 0x01;
1010 init_timer(&ictx
->itimer
);
1011 ictx
->itimer
.data
= (unsigned long)ictx
;
1012 ictx
->itimer
.function
= imon_mce_timeout
;
1014 case IR_TYPE_UNKNOWN
:
1016 dev_dbg(dev
, "Configuring IR receiver for iMON protocol\n");
1020 dev_dbg(dev
, "PAD stabilize functionality disabled\n");
1023 /* ir_proto_packet[0] = 0x00; // already the default */
1024 ir_type
= IR_TYPE_OTHER
;
1027 dev_warn(dev
, "Unsupported IR protocol specified, overriding "
1028 "to iMON IR protocol\n");
1032 dev_dbg(dev
, "PAD stabilize functionality disabled\n");
1035 /* ir_proto_packet[0] = 0x00; // already the default */
1036 ir_type
= IR_TYPE_OTHER
;
1040 memcpy(ictx
->usb_tx_buf
, &ir_proto_packet
, sizeof(ir_proto_packet
));
1042 retval
= send_packet(ictx
);
1046 ictx
->ir_type
= ir_type
;
1047 ictx
->pad_mouse
= pad_mouse
;
1053 static inline int tv2int(const struct timeval
*a
, const struct timeval
*b
)
1058 if (b
->tv_usec
> a
->tv_usec
) {
1063 usecs
+= a
->tv_usec
- b
->tv_usec
;
1065 sec
+= a
->tv_sec
- b
->tv_sec
;
1077 * The directional pad behaves a bit differently, depending on whether this is
1078 * one of the older ffdc devices or a newer device. Newer devices appear to
1079 * have a higher resolution matrix for more precise mouse movement, but it
1080 * makes things overly sensitive in keyboard mode, so we do some interesting
1081 * contortions to make it less touchy. Older devices run through the same
1082 * routine with shorter timeout and a smaller threshold.
1084 static int stabilize(int a
, int b
, u16 timeout
, u16 threshold
)
1087 static struct timeval prev_time
= {0, 0};
1088 static struct timeval hit_time
= {0, 0};
1089 static int x
, y
, prev_result
, hits
;
1093 do_gettimeofday(&ct
);
1094 msec
= tv2int(&ct
, &prev_time
);
1095 msec_hit
= tv2int(&ct
, &hit_time
);
1108 if (abs(x
) > threshold
|| abs(y
) > threshold
) {
1109 if (abs(y
) > abs(x
))
1110 result
= (y
> 0) ? 0x7F : 0x80;
1112 result
= (x
> 0) ? 0x7F00 : 0x8000;
1117 if (result
== prev_result
) {
1123 y
= 17 * threshold
/ 30;
1126 y
-= 17 * threshold
/ 30;
1129 x
= 17 * threshold
/ 30;
1132 x
-= 17 * threshold
/ 30;
1137 if (hits
== 2 && msec_hit
< timeout
) {
1142 prev_result
= result
;
1151 static u32
imon_remote_key_lookup(struct imon_context
*ictx
, u32 hw_code
)
1153 u32 scancode
= be32_to_cpu(hw_code
);
1156 bool is_release_code
= false;
1158 /* Look for the initial press of a button */
1159 keycode
= ir_g_keycode_from_table(ictx
->idev
, scancode
);
1161 /* Look for the release of a button */
1162 if (keycode
== KEY_RESERVED
) {
1163 release
= scancode
& ~0x4000;
1164 keycode
= ir_g_keycode_from_table(ictx
->idev
, release
);
1165 if (keycode
!= KEY_RESERVED
)
1166 is_release_code
= true;
1169 ictx
->release_code
= is_release_code
;
1174 static u32
imon_mce_key_lookup(struct imon_context
*ictx
, u32 hw_code
)
1176 u32 scancode
= be32_to_cpu(hw_code
);
1179 #define MCE_KEY_MASK 0x7000
1180 #define MCE_TOGGLE_BIT 0x8000
1183 * On some receivers, mce keys decode to 0x8000f04xx and 0x8000f84xx
1184 * (the toggle bit flipping between alternating key presses), while
1185 * on other receivers, we see 0x8000f74xx and 0x8000ff4xx. To keep
1186 * the table trim, we always or in the bits to look up 0x8000ff4xx,
1187 * but we can't or them into all codes, as some keys are decoded in
1188 * a different way w/o the same use of the toggle bit...
1190 if ((scancode
>> 24) & 0x80)
1191 scancode
= scancode
| MCE_KEY_MASK
| MCE_TOGGLE_BIT
;
1193 keycode
= ir_g_keycode_from_table(ictx
->idev
, scancode
);
1198 static u32
imon_panel_key_lookup(u64 hw_code
)
1201 u64 code
= be64_to_cpu(hw_code
);
1202 u32 keycode
= KEY_RESERVED
;
1204 for (i
= 0; i
< ARRAY_SIZE(imon_panel_key_table
); i
++) {
1205 if (imon_panel_key_table
[i
].hw_code
== (code
| 0xffee)) {
1206 keycode
= imon_panel_key_table
[i
].keycode
;
1214 static bool imon_mouse_event(struct imon_context
*ictx
,
1215 unsigned char *buf
, int len
)
1217 char rel_x
= 0x00, rel_y
= 0x00;
1219 bool mouse_input
= true;
1222 /* newer iMON device PAD or mouse button */
1223 if (ictx
->product
!= 0xffdc && (buf
[0] & 0x01) && len
== 5) {
1227 /* 0xffdc iMON PAD or mouse button input */
1228 } else if (ictx
->product
== 0xffdc && (buf
[0] & 0x40) &&
1229 !((buf
[1] & 0x01) || ((buf
[1] >> 2) & 0x01))) {
1230 rel_x
= (buf
[1] & 0x08) | (buf
[1] & 0x10) >> 2 |
1231 (buf
[1] & 0x20) >> 4 | (buf
[1] & 0x40) >> 6;
1234 rel_x
= rel_x
+ rel_x
/ 2;
1235 rel_y
= (buf
[2] & 0x08) | (buf
[2] & 0x10) >> 2 |
1236 (buf
[2] & 0x20) >> 4 | (buf
[2] & 0x40) >> 6;
1239 rel_y
= rel_y
+ rel_y
/ 2;
1241 /* some ffdc devices decode mouse buttons differently... */
1242 } else if (ictx
->product
== 0xffdc && (buf
[0] == 0x68)) {
1244 /* ch+/- buttons, which we use for an emulated scroll wheel */
1245 } else if (ictx
->kc
== KEY_CHANNELUP
&& (buf
[2] & 0x40) != 0x40) {
1247 } else if (ictx
->kc
== KEY_CHANNELDOWN
&& (buf
[2] & 0x40) != 0x40) {
1250 mouse_input
= false;
1253 dev_dbg(ictx
->dev
, "sending mouse data via input subsystem\n");
1256 input_report_rel(ictx
->idev
, REL_WHEEL
, dir
);
1257 } else if (rel_x
|| rel_y
) {
1258 input_report_rel(ictx
->idev
, REL_X
, rel_x
);
1259 input_report_rel(ictx
->idev
, REL_Y
, rel_y
);
1261 input_report_key(ictx
->idev
, BTN_LEFT
, buf
[1] & 0x1);
1262 input_report_key(ictx
->idev
, BTN_RIGHT
,
1263 buf
[1] >> right_shift
& 0x1);
1265 input_sync(ictx
->idev
);
1266 ictx
->last_keycode
= ictx
->kc
;
1272 static void imon_touch_event(struct imon_context
*ictx
, unsigned char *buf
)
1274 mod_timer(&ictx
->ttimer
, jiffies
+ TOUCH_TIMEOUT
);
1275 ictx
->touch_x
= (buf
[0] << 4) | (buf
[1] >> 4);
1276 ictx
->touch_y
= 0xfff - ((buf
[2] << 4) | (buf
[1] & 0xf));
1277 input_report_abs(ictx
->touch
, ABS_X
, ictx
->touch_x
);
1278 input_report_abs(ictx
->touch
, ABS_Y
, ictx
->touch_y
);
1279 input_report_key(ictx
->touch
, BTN_TOUCH
, 0x01);
1280 input_sync(ictx
->touch
);
1283 static void imon_pad_to_keys(struct imon_context
*ictx
, unsigned char *buf
)
1286 char rel_x
= 0x00, rel_y
= 0x00;
1287 u16 timeout
, threshold
;
1292 * The imon directional pad functions more like a touchpad. Bytes 3 & 4
1293 * contain a position coordinate (x,y), with each component ranging
1294 * from -14 to 14. We want to down-sample this to only 4 discrete values
1295 * for up/down/left/right arrow keys. Also, when you get too close to
1296 * diagonals, it has a tendancy to jump back and forth, so lets try to
1297 * ignore when they get too close.
1299 if (ictx
->product
!= 0xffdc) {
1300 /* first, pad to 8 bytes so it conforms with everything else */
1301 buf
[5] = buf
[6] = buf
[7] = 0;
1302 timeout
= 500; /* in msecs */
1303 /* (2*threshold) x (2*threshold) square */
1304 threshold
= pad_thresh
? pad_thresh
: 28;
1308 if (ictx
->ir_type
== IR_TYPE_OTHER
&& pad_stabilize
) {
1309 if ((buf
[1] == 0) && ((rel_x
!= 0) || (rel_y
!= 0))) {
1310 dir
= stabilize((int)rel_x
, (int)rel_y
,
1311 timeout
, threshold
);
1313 ictx
->kc
= KEY_UNKNOWN
;
1316 buf
[2] = dir
& 0xFF;
1317 buf
[3] = (dir
>> 8) & 0xFF;
1318 memcpy(&temp_key
, buf
, sizeof(temp_key
));
1319 remote_key
= (u32
) (le64_to_cpu(temp_key
)
1321 ictx
->kc
= imon_remote_key_lookup(ictx
,
1325 if (abs(rel_y
) > abs(rel_x
)) {
1326 buf
[2] = (rel_y
> 0) ? 0x7F : 0x80;
1328 ictx
->kc
= (rel_y
> 0) ? KEY_DOWN
: KEY_UP
;
1331 buf
[3] = (rel_x
> 0) ? 0x7F : 0x80;
1332 ictx
->kc
= (rel_x
> 0) ? KEY_RIGHT
: KEY_LEFT
;
1337 * Handle on-board decoded pad events for e.g. older VFD/iMON-Pad
1338 * device (15c2:ffdc). The remote generates various codes from
1339 * 0x68nnnnB7 to 0x6AnnnnB7, the left mouse button generates
1340 * 0x688301b7 and the right one 0x688481b7. All other keys generate
1341 * 0x2nnnnnnn. Position coordinate is encoded in buf[1] and buf[2] with
1342 * reversed endianess. Extract direction from buffer, rotate endianess,
1343 * adjust sign and feed the values into stabilize(). The resulting codes
1344 * will be 0x01008000, 0x01007F00, which match the newer devices.
1347 timeout
= 10; /* in msecs */
1348 /* (2*threshold) x (2*threshold) square */
1349 threshold
= pad_thresh
? pad_thresh
: 15;
1352 rel_x
= (buf
[1] & 0x08) | (buf
[1] & 0x10) >> 2 |
1353 (buf
[1] & 0x20) >> 4 | (buf
[1] & 0x40) >> 6;
1357 rel_y
= (buf
[2] & 0x08) | (buf
[2] & 0x10) >> 2 |
1358 (buf
[2] & 0x20) >> 4 | (buf
[2] & 0x40) >> 6;
1363 buf
[1] = buf
[4] = buf
[5] = buf
[6] = buf
[7] = 0;
1365 if (ictx
->ir_type
== IR_TYPE_OTHER
&& pad_stabilize
) {
1366 dir
= stabilize((int)rel_x
, (int)rel_y
,
1367 timeout
, threshold
);
1369 ictx
->kc
= KEY_UNKNOWN
;
1372 buf
[2] = dir
& 0xFF;
1373 buf
[3] = (dir
>> 8) & 0xFF;
1374 memcpy(&temp_key
, buf
, sizeof(temp_key
));
1375 remote_key
= (u32
) (le64_to_cpu(temp_key
) & 0xffffffff);
1376 ictx
->kc
= imon_remote_key_lookup(ictx
, remote_key
);
1378 if (abs(rel_y
) > abs(rel_x
)) {
1379 buf
[2] = (rel_y
> 0) ? 0x7F : 0x80;
1381 ictx
->kc
= (rel_y
> 0) ? KEY_DOWN
: KEY_UP
;
1384 buf
[3] = (rel_x
> 0) ? 0x7F : 0x80;
1385 ictx
->kc
= (rel_x
> 0) ? KEY_RIGHT
: KEY_LEFT
;
1391 static int imon_parse_press_type(struct imon_context
*ictx
,
1392 unsigned char *buf
, u8 ktype
)
1395 int rep_delay
= ictx
->idev
->rep
[REP_DELAY
];
1396 int rep_period
= ictx
->idev
->rep
[REP_PERIOD
];
1398 /* key release of 0x02XXXXXX key */
1399 if (ictx
->kc
== KEY_RESERVED
&& buf
[0] == 0x02 && buf
[3] == 0x00)
1400 ictx
->kc
= ictx
->last_keycode
;
1402 /* mouse button release on (some) 0xffdc devices */
1403 else if (ictx
->kc
== KEY_RESERVED
&& buf
[0] == 0x68 && buf
[1] == 0x82 &&
1404 buf
[2] == 0x81 && buf
[3] == 0xb7)
1405 ictx
->kc
= ictx
->last_keycode
;
1407 /* mouse button release on (some other) 0xffdc devices */
1408 else if (ictx
->kc
== KEY_RESERVED
&& buf
[0] == 0x01 && buf
[1] == 0x00 &&
1409 buf
[2] == 0x81 && buf
[3] == 0xb7)
1410 ictx
->kc
= ictx
->last_keycode
;
1412 /* mce-specific button handling */
1413 else if (ktype
== IMON_KEY_MCE
) {
1415 if (ictx
->kc
!= ictx
->last_keycode
1416 || buf
[2] != ictx
->mce_toggle_bit
) {
1417 ictx
->last_keycode
= ictx
->kc
;
1418 ictx
->mce_toggle_bit
= buf
[2];
1420 mod_timer(&ictx
->itimer
,
1421 jiffies
+ msecs_to_jiffies(rep_delay
));
1425 mod_timer(&ictx
->itimer
,
1426 jiffies
+ msecs_to_jiffies(rep_period
));
1429 /* incoherent or irrelevant data */
1430 } else if (ictx
->kc
== KEY_RESERVED
)
1431 press_type
= -EINVAL
;
1433 /* key release of 0xXXXXXXb7 key */
1434 else if (ictx
->release_code
)
1437 /* this is a button press */
1445 * Process the incoming packet
1447 static void imon_incoming_packet(struct imon_context
*ictx
,
1448 struct urb
*urb
, int intf
)
1450 int len
= urb
->actual_length
;
1451 unsigned char *buf
= urb
->transfer_buffer
;
1452 struct device
*dev
= ictx
->dev
;
1454 bool norelease
= false;
1459 struct input_dev
*idev
= NULL
;
1463 static struct timeval prev_time
= { 0, 0 };
1464 u8 ktype
= IMON_KEY_IMON
;
1468 /* filter out junk data on the older 0xffdc imon devices */
1469 if ((buf
[0] == 0xff) && (buf
[1] == 0xff) && (buf
[2] == 0xff))
1472 /* Figure out what key was pressed */
1473 memcpy(&temp_key
, buf
, sizeof(temp_key
));
1474 if (len
== 8 && buf
[7] == 0xee) {
1475 ktype
= IMON_KEY_PANEL
;
1476 panel_key
= le64_to_cpu(temp_key
);
1477 kc
= imon_panel_key_lookup(panel_key
);
1479 remote_key
= (u32
) (le64_to_cpu(temp_key
) & 0xffffffff);
1480 if (ictx
->ir_type
== IR_TYPE_RC6
) {
1482 ktype
= IMON_KEY_MCE
;
1483 kc
= imon_mce_key_lookup(ictx
, remote_key
);
1485 kc
= imon_remote_key_lookup(ictx
, remote_key
);
1488 /* keyboard/mouse mode toggle button */
1489 if (kc
== KEY_KEYBOARD
&& !ictx
->release_code
) {
1490 ictx
->last_keycode
= kc
;
1492 ictx
->pad_mouse
= ~(ictx
->pad_mouse
) & 0x1;
1493 dev_dbg(dev
, "toggling to %s mode\n",
1494 ictx
->pad_mouse
? "mouse" : "keyboard");
1497 ictx
->pad_mouse
= 0;
1498 dev_dbg(dev
, "mouse mode disabled, passing key value\n");
1504 /* send touchscreen events through input subsystem if touchpad data */
1505 if (ictx
->display_type
== IMON_DISPLAY_TYPE_VGA
&& len
== 8 &&
1507 imon_touch_event(ictx
, buf
);
1509 /* look for mouse events with pad in mouse mode */
1510 } else if (ictx
->pad_mouse
) {
1511 if (imon_mouse_event(ictx
, buf
, len
))
1515 /* Now for some special handling to convert pad input to arrow keys */
1516 if (((len
== 5) && (buf
[0] == 0x01) && (buf
[4] == 0x00)) ||
1517 ((len
== 8) && (buf
[0] & 0x40) &&
1518 !(buf
[1] & 0x1 || buf
[1] >> 2 & 0x1))) {
1520 imon_pad_to_keys(ictx
, buf
);
1525 printk(KERN_INFO
"intf%d decoded packet: ", intf
);
1526 for (i
= 0; i
< len
; ++i
)
1527 printk("%02x ", buf
[i
]);
1531 press_type
= imon_parse_press_type(ictx
, buf
, ktype
);
1533 goto not_input_data
;
1535 if (ictx
->kc
== KEY_UNKNOWN
)
1538 /* KEY_MUTE repeats from MCE and knob need to be suppressed */
1539 if ((ictx
->kc
== KEY_MUTE
&& ictx
->kc
== ictx
->last_keycode
)
1540 && (buf
[7] == 0xee || ktype
== IMON_KEY_MCE
)) {
1541 do_gettimeofday(&t
);
1542 msec
= tv2int(&t
, &prev_time
);
1544 if (msec
< idev
->rep
[REP_DELAY
])
1548 input_report_key(idev
, ictx
->kc
, press_type
);
1551 /* panel keys and some remote keys don't generate a release */
1552 if (panel_key
|| norelease
) {
1553 input_report_key(idev
, ictx
->kc
, 0);
1557 ictx
->last_keycode
= ictx
->kc
;
1562 dev_info(dev
, "%s: unknown keypress, code 0x%llx\n", __func__
,
1563 (panel_key
? be64_to_cpu(panel_key
) :
1564 be32_to_cpu(remote_key
)));
1569 dev_warn(dev
, "imon %s: invalid incoming packet "
1570 "size (len = %d, intf%d)\n", __func__
, len
, intf
);
1574 /* iMON 2.4G associate frame */
1575 if (buf
[0] == 0x00 &&
1576 buf
[2] == 0xFF && /* REFID */
1579 buf
[5] == 0xFF && /* iMON 2.4G */
1580 ((buf
[6] == 0x4E && buf
[7] == 0xDF) || /* LT */
1581 (buf
[6] == 0x5E && buf
[7] == 0xDF))) { /* DT */
1582 dev_warn(dev
, "%s: remote associated refid=%02X\n",
1584 ictx
->rf_isassociating
= false;
1589 * Callback function for USB core API: receive data
1591 static void usb_rx_callback_intf0(struct urb
*urb
)
1593 struct imon_context
*ictx
;
1599 ictx
= (struct imon_context
*)urb
->context
;
1603 switch (urb
->status
) {
1604 case -ENOENT
: /* usbcore unlink successful! */
1607 case -ESHUTDOWN
: /* transport endpoint was shut down */
1611 imon_incoming_packet(ictx
, urb
, intfnum
);
1615 dev_warn(ictx
->dev
, "imon %s: status(%d): ignored\n",
1616 __func__
, urb
->status
);
1620 usb_submit_urb(ictx
->rx_urb_intf0
, GFP_ATOMIC
);
1623 static void usb_rx_callback_intf1(struct urb
*urb
)
1625 struct imon_context
*ictx
;
1631 ictx
= (struct imon_context
*)urb
->context
;
1635 switch (urb
->status
) {
1636 case -ENOENT
: /* usbcore unlink successful! */
1639 case -ESHUTDOWN
: /* transport endpoint was shut down */
1643 imon_incoming_packet(ictx
, urb
, intfnum
);
1647 dev_warn(ictx
->dev
, "imon %s: status(%d): ignored\n",
1648 __func__
, urb
->status
);
1652 usb_submit_urb(ictx
->rx_urb_intf1
, GFP_ATOMIC
);
1655 static struct input_dev
*imon_init_idev(struct imon_context
*ictx
)
1657 struct input_dev
*idev
;
1658 struct ir_dev_props
*props
;
1659 struct ir_input_dev
*ir
;
1662 idev
= input_allocate_device();
1664 dev_err(ictx
->dev
, "remote input dev allocation failed\n");
1665 goto idev_alloc_failed
;
1668 props
= kzalloc(sizeof(struct ir_dev_props
), GFP_KERNEL
);
1670 dev_err(ictx
->dev
, "remote ir dev props allocation failed\n");
1671 goto props_alloc_failed
;
1674 ir
= kzalloc(sizeof(struct ir_input_dev
), GFP_KERNEL
);
1676 dev_err(ictx
->dev
, "remote ir input dev allocation failed\n");
1677 goto ir_dev_alloc_failed
;
1680 snprintf(ictx
->name_idev
, sizeof(ictx
->name_idev
),
1681 "iMON Remote (%04x:%04x)", ictx
->vendor
, ictx
->product
);
1682 idev
->name
= ictx
->name_idev
;
1684 usb_make_path(ictx
->usbdev_intf0
, ictx
->phys_idev
,
1685 sizeof(ictx
->phys_idev
));
1686 strlcat(ictx
->phys_idev
, "/input0", sizeof(ictx
->phys_idev
));
1687 idev
->phys
= ictx
->phys_idev
;
1689 idev
->evbit
[0] = BIT_MASK(EV_KEY
) | BIT_MASK(EV_REP
) | BIT_MASK(EV_REL
);
1691 idev
->keybit
[BIT_WORD(BTN_MOUSE
)] =
1692 BIT_MASK(BTN_LEFT
) | BIT_MASK(BTN_RIGHT
);
1693 idev
->relbit
[0] = BIT_MASK(REL_X
) | BIT_MASK(REL_Y
) |
1694 BIT_MASK(REL_WHEEL
);
1696 /* panel and/or knob code support */
1697 for (i
= 0; i
< ARRAY_SIZE(imon_panel_key_table
); i
++) {
1698 u32 kc
= imon_panel_key_table
[i
].keycode
;
1699 __set_bit(kc
, idev
->keybit
);
1703 props
->driver_type
= RC_DRIVER_SCANCODE
;
1704 /* IR_TYPE_OTHER maps to iMON PAD remote, IR_TYPE_RC6 to MCE remote */
1705 props
->allowed_protos
= IR_TYPE_OTHER
| IR_TYPE_RC6
;
1706 props
->change_protocol
= imon_ir_change_protocol
;
1707 ictx
->props
= props
;
1710 memcpy(&ir
->dev
, ictx
->dev
, sizeof(struct device
));
1712 usb_to_input_id(ictx
->usbdev_intf0
, &idev
->id
);
1713 idev
->dev
.parent
= ictx
->dev
;
1715 input_set_drvdata(idev
, ir
);
1717 ret
= ir_input_register(idev
, RC_MAP_IMON_PAD
, props
, MOD_NAME
);
1719 dev_err(ictx
->dev
, "remote input dev register failed\n");
1720 goto idev_register_failed
;
1725 idev_register_failed
:
1727 ir_dev_alloc_failed
:
1730 input_free_device(idev
);
1736 static struct input_dev
*imon_init_touch(struct imon_context
*ictx
)
1738 struct input_dev
*touch
;
1741 touch
= input_allocate_device();
1743 dev_err(ictx
->dev
, "touchscreen input dev allocation failed\n");
1744 goto touch_alloc_failed
;
1747 snprintf(ictx
->name_touch
, sizeof(ictx
->name_touch
),
1748 "iMON USB Touchscreen (%04x:%04x)",
1749 ictx
->vendor
, ictx
->product
);
1750 touch
->name
= ictx
->name_touch
;
1752 usb_make_path(ictx
->usbdev_intf1
, ictx
->phys_touch
,
1753 sizeof(ictx
->phys_touch
));
1754 strlcat(ictx
->phys_touch
, "/input1", sizeof(ictx
->phys_touch
));
1755 touch
->phys
= ictx
->phys_touch
;
1758 BIT_MASK(EV_KEY
) | BIT_MASK(EV_ABS
);
1759 touch
->keybit
[BIT_WORD(BTN_TOUCH
)] =
1760 BIT_MASK(BTN_TOUCH
);
1761 input_set_abs_params(touch
, ABS_X
,
1763 input_set_abs_params(touch
, ABS_Y
,
1766 input_set_drvdata(touch
, ictx
);
1768 usb_to_input_id(ictx
->usbdev_intf1
, &touch
->id
);
1769 touch
->dev
.parent
= ictx
->dev
;
1770 ret
= input_register_device(touch
);
1772 dev_info(ictx
->dev
, "touchscreen input dev register failed\n");
1773 goto touch_register_failed
;
1778 touch_register_failed
:
1779 input_free_device(ictx
->touch
);
1785 static bool imon_find_endpoints(struct imon_context
*ictx
,
1786 struct usb_host_interface
*iface_desc
)
1788 struct usb_endpoint_descriptor
*ep
;
1789 struct usb_endpoint_descriptor
*rx_endpoint
= NULL
;
1790 struct usb_endpoint_descriptor
*tx_endpoint
= NULL
;
1791 int ifnum
= iface_desc
->desc
.bInterfaceNumber
;
1792 int num_endpts
= iface_desc
->desc
.bNumEndpoints
;
1793 int i
, ep_dir
, ep_type
;
1794 bool ir_ep_found
= false;
1795 bool display_ep_found
= false;
1796 bool tx_control
= false;
1799 * Scan the endpoint list and set:
1800 * first input endpoint = IR endpoint
1801 * first output endpoint = display endpoint
1803 for (i
= 0; i
< num_endpts
&& !(ir_ep_found
&& display_ep_found
); ++i
) {
1804 ep
= &iface_desc
->endpoint
[i
].desc
;
1805 ep_dir
= ep
->bEndpointAddress
& USB_ENDPOINT_DIR_MASK
;
1806 ep_type
= ep
->bmAttributes
& USB_ENDPOINT_XFERTYPE_MASK
;
1808 if (!ir_ep_found
&& ep_dir
== USB_DIR_IN
&&
1809 ep_type
== USB_ENDPOINT_XFER_INT
) {
1813 dev_dbg(ictx
->dev
, "%s: found IR endpoint\n", __func__
);
1815 } else if (!display_ep_found
&& ep_dir
== USB_DIR_OUT
&&
1816 ep_type
== USB_ENDPOINT_XFER_INT
) {
1818 display_ep_found
= true;
1819 dev_dbg(ictx
->dev
, "%s: found display endpoint\n", __func__
);
1824 ictx
->rx_endpoint_intf0
= rx_endpoint
;
1826 * tx is used to send characters to lcd/vfd, associate RF
1827 * remotes, set IR protocol, and maybe more...
1829 ictx
->tx_endpoint
= tx_endpoint
;
1831 ictx
->rx_endpoint_intf1
= rx_endpoint
;
1835 * If we didn't find a display endpoint, this is probably one of the
1836 * newer iMON devices that use control urb instead of interrupt
1838 if (!display_ep_found
) {
1840 display_ep_found
= true;
1841 dev_dbg(ictx
->dev
, "%s: device uses control endpoint, not "
1842 "interface OUT endpoint\n", __func__
);
1846 * Some iMON receivers have no display. Unfortunately, it seems
1847 * that SoundGraph recycles device IDs between devices both with
1850 if (ictx
->display_type
== IMON_DISPLAY_TYPE_NONE
) {
1851 display_ep_found
= false;
1852 dev_dbg(ictx
->dev
, "%s: device has no display\n", __func__
);
1856 * iMON Touch devices have a VGA touchscreen, but no "display", as
1857 * that refers to e.g. /dev/lcd0 (a character device LCD or VFD).
1859 if (ictx
->display_type
== IMON_DISPLAY_TYPE_VGA
) {
1860 display_ep_found
= false;
1861 dev_dbg(ictx
->dev
, "%s: iMON Touch device found\n", __func__
);
1864 /* Input endpoint is mandatory */
1866 err("%s: no valid input (IR) endpoint found.", __func__
);
1868 ictx
->tx_control
= tx_control
;
1870 if (display_ep_found
)
1871 ictx
->display_supported
= true;
1877 static struct imon_context
*imon_init_intf0(struct usb_interface
*intf
)
1879 struct imon_context
*ictx
;
1882 struct device
*dev
= &intf
->dev
;
1883 struct usb_host_interface
*iface_desc
;
1886 ictx
= kzalloc(sizeof(struct imon_context
), GFP_KERNEL
);
1888 dev_err(dev
, "%s: kzalloc failed for context", __func__
);
1891 rx_urb
= usb_alloc_urb(0, GFP_KERNEL
);
1893 dev_err(dev
, "%s: usb_alloc_urb failed for IR urb", __func__
);
1894 goto rx_urb_alloc_failed
;
1896 tx_urb
= usb_alloc_urb(0, GFP_KERNEL
);
1898 dev_err(dev
, "%s: usb_alloc_urb failed for display urb",
1900 goto tx_urb_alloc_failed
;
1903 mutex_init(&ictx
->lock
);
1905 mutex_lock(&ictx
->lock
);
1908 ictx
->usbdev_intf0
= usb_get_dev(interface_to_usbdev(intf
));
1909 ictx
->dev_present_intf0
= true;
1910 ictx
->rx_urb_intf0
= rx_urb
;
1911 ictx
->tx_urb
= tx_urb
;
1912 ictx
->rf_device
= false;
1914 ictx
->vendor
= le16_to_cpu(ictx
->usbdev_intf0
->descriptor
.idVendor
);
1915 ictx
->product
= le16_to_cpu(ictx
->usbdev_intf0
->descriptor
.idProduct
);
1918 iface_desc
= intf
->cur_altsetting
;
1919 if (!imon_find_endpoints(ictx
, iface_desc
)) {
1920 goto find_endpoint_failed
;
1923 ictx
->idev
= imon_init_idev(ictx
);
1925 dev_err(dev
, "%s: input device setup failed\n", __func__
);
1926 goto idev_setup_failed
;
1929 usb_fill_int_urb(ictx
->rx_urb_intf0
, ictx
->usbdev_intf0
,
1930 usb_rcvintpipe(ictx
->usbdev_intf0
,
1931 ictx
->rx_endpoint_intf0
->bEndpointAddress
),
1932 ictx
->usb_rx_buf
, sizeof(ictx
->usb_rx_buf
),
1933 usb_rx_callback_intf0
, ictx
,
1934 ictx
->rx_endpoint_intf0
->bInterval
);
1936 ret
= usb_submit_urb(ictx
->rx_urb_intf0
, GFP_KERNEL
);
1938 err("%s: usb_submit_urb failed for intf0 (%d)",
1940 goto urb_submit_failed
;
1946 ir_input_unregister(ictx
->idev
);
1947 input_free_device(ictx
->idev
);
1949 find_endpoint_failed
:
1950 mutex_unlock(&ictx
->lock
);
1951 usb_free_urb(tx_urb
);
1952 tx_urb_alloc_failed
:
1953 usb_free_urb(rx_urb
);
1954 rx_urb_alloc_failed
:
1957 dev_err(dev
, "unable to initialize intf0, err %d\n", ret
);
1962 static struct imon_context
*imon_init_intf1(struct usb_interface
*intf
,
1963 struct imon_context
*ictx
)
1966 struct usb_host_interface
*iface_desc
;
1969 rx_urb
= usb_alloc_urb(0, GFP_KERNEL
);
1971 err("%s: usb_alloc_urb failed for IR urb", __func__
);
1972 goto rx_urb_alloc_failed
;
1975 mutex_lock(&ictx
->lock
);
1977 if (ictx
->display_type
== IMON_DISPLAY_TYPE_VGA
) {
1978 init_timer(&ictx
->ttimer
);
1979 ictx
->ttimer
.data
= (unsigned long)ictx
;
1980 ictx
->ttimer
.function
= imon_touch_display_timeout
;
1983 ictx
->usbdev_intf1
= usb_get_dev(interface_to_usbdev(intf
));
1984 ictx
->dev_present_intf1
= true;
1985 ictx
->rx_urb_intf1
= rx_urb
;
1988 iface_desc
= intf
->cur_altsetting
;
1989 if (!imon_find_endpoints(ictx
, iface_desc
))
1990 goto find_endpoint_failed
;
1992 if (ictx
->display_type
== IMON_DISPLAY_TYPE_VGA
) {
1993 ictx
->touch
= imon_init_touch(ictx
);
1995 goto touch_setup_failed
;
1999 usb_fill_int_urb(ictx
->rx_urb_intf1
, ictx
->usbdev_intf1
,
2000 usb_rcvintpipe(ictx
->usbdev_intf1
,
2001 ictx
->rx_endpoint_intf1
->bEndpointAddress
),
2002 ictx
->usb_rx_buf
, sizeof(ictx
->usb_rx_buf
),
2003 usb_rx_callback_intf1
, ictx
,
2004 ictx
->rx_endpoint_intf1
->bInterval
);
2006 ret
= usb_submit_urb(ictx
->rx_urb_intf1
, GFP_KERNEL
);
2009 err("%s: usb_submit_urb failed for intf1 (%d)",
2011 goto urb_submit_failed
;
2018 input_unregister_device(ictx
->touch
);
2019 input_free_device(ictx
->touch
);
2022 find_endpoint_failed
:
2023 mutex_unlock(&ictx
->lock
);
2024 usb_free_urb(rx_urb
);
2025 rx_urb_alloc_failed
:
2026 dev_err(ictx
->dev
, "unable to initialize intf0, err %d\n", ret
);
2032 * The 0x15c2:0xffdc device ID was used for umpteen different imon
2033 * devices, and all of them constantly spew interrupts, even when there
2034 * is no actual data to report. However, byte 6 of this buffer looks like
2035 * its unique across device variants, so we're trying to key off that to
2036 * figure out which display type (if any) and what IR protocol the device
2037 * actually supports. These devices have their IR protocol hard-coded into
2038 * their firmware, they can't be changed on the fly like the newer hardware.
2040 static void imon_get_ffdc_type(struct imon_context
*ictx
)
2042 u8 ffdc_cfg_byte
= ictx
->usb_rx_buf
[6];
2043 u8 detected_display_type
= IMON_DISPLAY_TYPE_NONE
;
2044 u64 allowed_protos
= IR_TYPE_OTHER
;
2046 switch (ffdc_cfg_byte
) {
2047 /* iMON Knob, no display, iMON IR + vol knob */
2049 dev_info(ictx
->dev
, "0xffdc iMON Knob, iMON IR");
2050 ictx
->display_supported
= false;
2052 /* iMON 2.4G LT (usb stick), no display, iMON RF */
2054 dev_info(ictx
->dev
, "0xffdc iMON 2.4G LT, iMON RF");
2055 ictx
->display_supported
= false;
2056 ictx
->rf_device
= true;
2058 /* iMON VFD, no IR (does have vol knob tho) */
2060 dev_info(ictx
->dev
, "0xffdc iMON VFD + knob, no IR");
2061 detected_display_type
= IMON_DISPLAY_TYPE_VFD
;
2063 /* iMON VFD, iMON IR */
2066 dev_info(ictx
->dev
, "0xffdc iMON VFD, iMON IR");
2067 detected_display_type
= IMON_DISPLAY_TYPE_VFD
;
2069 /* iMON LCD, MCE IR */
2071 dev_info(ictx
->dev
, "0xffdc iMON LCD, MCE IR");
2072 detected_display_type
= IMON_DISPLAY_TYPE_LCD
;
2073 allowed_protos
= IR_TYPE_RC6
;
2076 dev_info(ictx
->dev
, "Unknown 0xffdc device, "
2077 "defaulting to VFD and iMON IR");
2078 detected_display_type
= IMON_DISPLAY_TYPE_VFD
;
2082 printk(KERN_CONT
" (id 0x%02x)\n", ffdc_cfg_byte
);
2084 ictx
->display_type
= detected_display_type
;
2085 ictx
->props
->allowed_protos
= allowed_protos
;
2086 ictx
->ir_type
= allowed_protos
;
2089 static void imon_set_display_type(struct imon_context
*ictx
,
2090 struct usb_interface
*intf
)
2092 u8 configured_display_type
= IMON_DISPLAY_TYPE_VFD
;
2095 * Try to auto-detect the type of display if the user hasn't set
2096 * it by hand via the display_type modparam. Default is VFD.
2099 if (display_type
== IMON_DISPLAY_TYPE_AUTO
) {
2100 switch (ictx
->product
) {
2102 /* set in imon_get_ffdc_type() */
2103 configured_display_type
= ictx
->display_type
;
2107 configured_display_type
= IMON_DISPLAY_TYPE_VGA
;
2112 configured_display_type
= IMON_DISPLAY_TYPE_LCD
;
2118 configured_display_type
= IMON_DISPLAY_TYPE_NONE
;
2119 ictx
->display_supported
= false;
2124 configured_display_type
= IMON_DISPLAY_TYPE_VFD
;
2128 configured_display_type
= display_type
;
2129 if (display_type
== IMON_DISPLAY_TYPE_NONE
)
2130 ictx
->display_supported
= false;
2132 ictx
->display_supported
= true;
2133 dev_info(ictx
->dev
, "%s: overriding display type to %d via "
2134 "modparam\n", __func__
, display_type
);
2137 ictx
->display_type
= configured_display_type
;
2140 static void imon_init_display(struct imon_context
*ictx
,
2141 struct usb_interface
*intf
)
2145 dev_dbg(ictx
->dev
, "Registering iMON display with sysfs\n");
2147 /* set up sysfs entry for built-in clock */
2148 ret
= sysfs_create_group(&intf
->dev
.kobj
,
2149 &imon_display_attribute_group
);
2151 dev_err(ictx
->dev
, "Could not create display sysfs "
2152 "entries(%d)", ret
);
2154 if (ictx
->display_type
== IMON_DISPLAY_TYPE_LCD
)
2155 ret
= usb_register_dev(intf
, &imon_lcd_class
);
2157 ret
= usb_register_dev(intf
, &imon_vfd_class
);
2159 /* Not a fatal error, so ignore */
2160 dev_info(ictx
->dev
, "could not get a minor number for "
2166 * Callback function for USB core API: Probe
2168 static int __devinit
imon_probe(struct usb_interface
*interface
,
2169 const struct usb_device_id
*id
)
2171 struct usb_device
*usbdev
= NULL
;
2172 struct usb_host_interface
*iface_desc
= NULL
;
2173 struct usb_interface
*first_if
;
2174 struct device
*dev
= &interface
->dev
;
2175 int ifnum
, code_length
, sysfs_err
;
2177 struct imon_context
*ictx
= NULL
;
2178 struct imon_context
*first_if_ctx
= NULL
;
2179 u16 vendor
, product
;
2180 const unsigned char fp_packet
[] = { 0x40, 0x00, 0x00, 0x00,
2181 0x00, 0x00, 0x00, 0x88 };
2183 code_length
= BUF_CHUNK_SIZE
* 8;
2185 usbdev
= usb_get_dev(interface_to_usbdev(interface
));
2186 iface_desc
= interface
->cur_altsetting
;
2187 ifnum
= iface_desc
->desc
.bInterfaceNumber
;
2188 vendor
= le16_to_cpu(usbdev
->descriptor
.idVendor
);
2189 product
= le16_to_cpu(usbdev
->descriptor
.idProduct
);
2191 dev_dbg(dev
, "%s: found iMON device (%04x:%04x, intf%d)\n",
2192 __func__
, vendor
, product
, ifnum
);
2194 /* prevent races probing devices w/multiple interfaces */
2195 mutex_lock(&driver_lock
);
2197 first_if
= usb_ifnum_to_if(usbdev
, 0);
2198 first_if_ctx
= (struct imon_context
*)usb_get_intfdata(first_if
);
2201 ictx
= imon_init_intf0(interface
);
2203 err("%s: failed to initialize context!\n", __func__
);
2209 /* this is the secondary interface on the device */
2210 ictx
= imon_init_intf1(interface
, first_if_ctx
);
2212 err("%s: failed to attach to context!\n", __func__
);
2219 usb_set_intfdata(interface
, ictx
);
2222 /* Enable front-panel buttons and/or knobs */
2223 memcpy(ictx
->usb_tx_buf
, &fp_packet
, sizeof(fp_packet
));
2224 ret
= send_packet(ictx
);
2225 /* Not fatal, but warn about it */
2227 dev_info(dev
, "failed to enable panel buttons "
2230 if (product
== 0xffdc)
2231 imon_get_ffdc_type(ictx
);
2233 imon_set_display_type(ictx
, interface
);
2235 if (product
== 0xffdc && ictx
->rf_device
) {
2236 sysfs_err
= sysfs_create_group(&interface
->dev
.kobj
,
2237 &imon_rf_attribute_group
);
2239 err("%s: Could not create RF sysfs entries(%d)",
2240 __func__
, sysfs_err
);
2243 if (ictx
->display_supported
)
2244 imon_init_display(ictx
, interface
);
2247 /* set IR protocol/remote type */
2248 ret
= imon_ir_change_protocol(ictx
, ictx
->ir_type
);
2250 dev_warn(dev
, "%s: failed to set IR protocol, falling back "
2251 "to standard iMON protocol mode\n", __func__
);
2252 ictx
->ir_type
= IR_TYPE_OTHER
;
2255 dev_info(dev
, "iMON device (%04x:%04x, intf%d) on "
2256 "usb<%d:%d> initialized\n", vendor
, product
, ifnum
,
2257 usbdev
->bus
->busnum
, usbdev
->devnum
);
2259 mutex_unlock(&ictx
->lock
);
2260 mutex_unlock(&driver_lock
);
2265 mutex_unlock(&driver_lock
);
2266 dev_err(dev
, "unable to register, err %d\n", ret
);
2272 * Callback function for USB core API: disconnect
2274 static void __devexit
imon_disconnect(struct usb_interface
*interface
)
2276 struct imon_context
*ictx
;
2280 /* prevent races with multi-interface device probing and display_open */
2281 mutex_lock(&driver_lock
);
2283 ictx
= usb_get_intfdata(interface
);
2285 ifnum
= interface
->cur_altsetting
->desc
.bInterfaceNumber
;
2287 mutex_lock(&ictx
->lock
);
2290 * sysfs_remove_group is safe to call even if sysfs_create_group
2291 * hasn't been called
2293 sysfs_remove_group(&interface
->dev
.kobj
,
2294 &imon_display_attribute_group
);
2295 sysfs_remove_group(&interface
->dev
.kobj
,
2296 &imon_rf_attribute_group
);
2298 usb_set_intfdata(interface
, NULL
);
2300 /* Abort ongoing write */
2301 if (ictx
->tx
.busy
) {
2302 usb_kill_urb(ictx
->tx_urb
);
2303 complete_all(&ictx
->tx
.finished
);
2307 ictx
->dev_present_intf0
= false;
2308 usb_kill_urb(ictx
->rx_urb_intf0
);
2309 ir_input_unregister(ictx
->idev
);
2310 if (ictx
->display_supported
) {
2311 if (ictx
->display_type
== IMON_DISPLAY_TYPE_LCD
)
2312 usb_deregister_dev(interface
, &imon_lcd_class
);
2314 usb_deregister_dev(interface
, &imon_vfd_class
);
2317 ictx
->dev_present_intf1
= false;
2318 usb_kill_urb(ictx
->rx_urb_intf1
);
2319 if (ictx
->display_type
== IMON_DISPLAY_TYPE_VGA
)
2320 input_unregister_device(ictx
->touch
);
2323 if (!ictx
->dev_present_intf0
&& !ictx
->dev_present_intf1
) {
2324 if (ictx
->display_type
== IMON_DISPLAY_TYPE_VGA
)
2325 del_timer_sync(&ictx
->ttimer
);
2326 mutex_unlock(&ictx
->lock
);
2327 if (!ictx
->display_isopen
)
2328 free_imon_context(ictx
);
2330 if (ictx
->ir_type
== IR_TYPE_RC6
)
2331 del_timer_sync(&ictx
->itimer
);
2332 mutex_unlock(&ictx
->lock
);
2335 mutex_unlock(&driver_lock
);
2337 dev_dbg(dev
, "%s: iMON device (intf%d) disconnected\n",
2341 static int imon_suspend(struct usb_interface
*intf
, pm_message_t message
)
2343 struct imon_context
*ictx
= usb_get_intfdata(intf
);
2344 int ifnum
= intf
->cur_altsetting
->desc
.bInterfaceNumber
;
2347 usb_kill_urb(ictx
->rx_urb_intf0
);
2349 usb_kill_urb(ictx
->rx_urb_intf1
);
2354 static int imon_resume(struct usb_interface
*intf
)
2357 struct imon_context
*ictx
= usb_get_intfdata(intf
);
2358 int ifnum
= intf
->cur_altsetting
->desc
.bInterfaceNumber
;
2361 usb_fill_int_urb(ictx
->rx_urb_intf0
, ictx
->usbdev_intf0
,
2362 usb_rcvintpipe(ictx
->usbdev_intf0
,
2363 ictx
->rx_endpoint_intf0
->bEndpointAddress
),
2364 ictx
->usb_rx_buf
, sizeof(ictx
->usb_rx_buf
),
2365 usb_rx_callback_intf0
, ictx
,
2366 ictx
->rx_endpoint_intf0
->bInterval
);
2368 rc
= usb_submit_urb(ictx
->rx_urb_intf0
, GFP_ATOMIC
);
2371 usb_fill_int_urb(ictx
->rx_urb_intf1
, ictx
->usbdev_intf1
,
2372 usb_rcvintpipe(ictx
->usbdev_intf1
,
2373 ictx
->rx_endpoint_intf1
->bEndpointAddress
),
2374 ictx
->usb_rx_buf
, sizeof(ictx
->usb_rx_buf
),
2375 usb_rx_callback_intf1
, ictx
,
2376 ictx
->rx_endpoint_intf1
->bInterval
);
2378 rc
= usb_submit_urb(ictx
->rx_urb_intf1
, GFP_ATOMIC
);
2384 static int __init
imon_init(void)
2388 rc
= usb_register(&imon_driver
);
2390 err("%s: usb register failed(%d)", __func__
, rc
);
2397 static void __exit
imon_exit(void)
2399 usb_deregister(&imon_driver
);
2402 module_init(imon_init
);
2403 module_exit(imon_exit
);