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21677cfc JW |
1 | /* |
2 | * imon.c: input and display driver for SoundGraph iMON IR/VFD/LCD | |
3 | * | |
693508df | 4 | * Copyright(C) 2010 Jarod Wilson <jarod@wilsonet.com> |
21677cfc JW |
5 | * Portions based on the original lirc_imon driver, |
6 | * Copyright(C) 2004 Venky Raju(dev@venky.ws) | |
7 | * | |
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. | |
13 | * | |
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. | |
18 | * | |
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. | |
23 | * | |
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. | |
27 | */ | |
28 | ||
e2302501 JP |
29 | #define pr_fmt(fmt) KBUILD_MODNAME ":%s: " fmt, __func__ |
30 | ||
21677cfc JW |
31 | #include <linux/errno.h> |
32 | #include <linux/init.h> | |
33 | #include <linux/kernel.h> | |
34 | #include <linux/module.h> | |
35 | #include <linux/slab.h> | |
36 | #include <linux/uaccess.h> | |
47a09b08 | 37 | #include <linux/ratelimit.h> |
21677cfc JW |
38 | |
39 | #include <linux/input.h> | |
40 | #include <linux/usb.h> | |
41 | #include <linux/usb/input.h> | |
6bda9644 | 42 | #include <media/rc-core.h> |
21677cfc JW |
43 | |
44 | #include <linux/time.h> | |
45 | #include <linux/timer.h> | |
46 | ||
47 | #define MOD_AUTHOR "Jarod Wilson <jarod@wilsonet.com>" | |
48 | #define MOD_DESC "Driver for SoundGraph iMON MultiMedia IR/Display" | |
49 | #define MOD_NAME "imon" | |
8791d63a | 50 | #define MOD_VERSION "0.9.4" |
21677cfc JW |
51 | |
52 | #define DISPLAY_MINOR_BASE 144 | |
53 | #define DEVICE_NAME "lcd%d" | |
54 | ||
55 | #define BUF_CHUNK_SIZE 8 | |
56 | #define BUF_SIZE 128 | |
57 | ||
58 | #define BIT_DURATION 250 /* each bit received is 250us */ | |
59 | ||
60 | #define IMON_CLOCK_ENABLE_PACKETS 2 | |
21677cfc JW |
61 | |
62 | /*** P R O T O T Y P E S ***/ | |
63 | ||
64 | /* USB Callback prototypes */ | |
65 | static int imon_probe(struct usb_interface *interface, | |
66 | const struct usb_device_id *id); | |
67 | static void imon_disconnect(struct usb_interface *interface); | |
68 | static void usb_rx_callback_intf0(struct urb *urb); | |
69 | static void usb_rx_callback_intf1(struct urb *urb); | |
70 | static void usb_tx_callback(struct urb *urb); | |
71 | ||
72 | /* suspend/resume support */ | |
73 | static int imon_resume(struct usb_interface *intf); | |
74 | static int imon_suspend(struct usb_interface *intf, pm_message_t message); | |
75 | ||
76 | /* Display file_operations function prototypes */ | |
77 | static int display_open(struct inode *inode, struct file *file); | |
78 | static int display_close(struct inode *inode, struct file *file); | |
79 | ||
80 | /* VFD write operation */ | |
81 | static ssize_t vfd_write(struct file *file, const char *buf, | |
82 | size_t n_bytes, loff_t *pos); | |
83 | ||
84 | /* LCD file_operations override function prototypes */ | |
85 | static ssize_t lcd_write(struct file *file, const char *buf, | |
86 | size_t n_bytes, loff_t *pos); | |
87 | ||
88 | /*** G L O B A L S ***/ | |
89 | ||
90 | struct imon_context { | |
91 | struct device *dev; | |
21677cfc JW |
92 | /* Newer devices have two interfaces */ |
93 | struct usb_device *usbdev_intf0; | |
94 | struct usb_device *usbdev_intf1; | |
95 | ||
96 | bool display_supported; /* not all controllers do */ | |
97 | bool display_isopen; /* display port has been opened */ | |
bbe4690f | 98 | bool rf_device; /* true if iMON 2.4G LT/DT RF device */ |
21677cfc JW |
99 | bool rf_isassociating; /* RF remote associating */ |
100 | bool dev_present_intf0; /* USB device presence, interface 0 */ | |
101 | bool dev_present_intf1; /* USB device presence, interface 1 */ | |
102 | ||
103 | struct mutex lock; /* to lock this object */ | |
104 | wait_queue_head_t remove_ok; /* For unexpected USB disconnects */ | |
105 | ||
106 | struct usb_endpoint_descriptor *rx_endpoint_intf0; | |
107 | struct usb_endpoint_descriptor *rx_endpoint_intf1; | |
108 | struct usb_endpoint_descriptor *tx_endpoint; | |
109 | struct urb *rx_urb_intf0; | |
110 | struct urb *rx_urb_intf1; | |
111 | struct urb *tx_urb; | |
112 | bool tx_control; | |
113 | unsigned char usb_rx_buf[8]; | |
114 | unsigned char usb_tx_buf[8]; | |
26ccbec4 | 115 | unsigned int send_packet_delay; |
21677cfc JW |
116 | |
117 | struct tx_t { | |
118 | unsigned char data_buf[35]; /* user data buffer */ | |
119 | struct completion finished; /* wait for write to finish */ | |
120 | bool busy; /* write in progress */ | |
121 | int status; /* status of tx completion */ | |
122 | } tx; | |
123 | ||
124 | u16 vendor; /* usb vendor ID */ | |
125 | u16 product; /* usb product ID */ | |
126 | ||
d8b4b582 | 127 | struct rc_dev *rdev; /* rc-core device for remote */ |
eaf2bcc9 | 128 | struct input_dev *idev; /* input device for panel & IR mouse */ |
21677cfc JW |
129 | struct input_dev *touch; /* input device for touchscreen */ |
130 | ||
693508df | 131 | spinlock_t kc_lock; /* make sure we get keycodes right */ |
21677cfc JW |
132 | u32 kc; /* current input keycode */ |
133 | u32 last_keycode; /* last reported input keycode */ | |
eaf2bcc9 DH |
134 | u32 rc_scancode; /* the computed remote scancode */ |
135 | u8 rc_toggle; /* the computed remote toggle bit */ | |
52b66144 | 136 | u64 rc_type; /* iMON or MCE (RC6) IR protocol? */ |
21677cfc JW |
137 | bool release_code; /* some keys send a release code */ |
138 | ||
139 | u8 display_type; /* store the display type */ | |
140 | bool pad_mouse; /* toggle kbd(0)/mouse(1) mode */ | |
141 | ||
eaf2bcc9 DH |
142 | char name_rdev[128]; /* rc input device name */ |
143 | char phys_rdev[64]; /* rc input device phys path */ | |
144 | ||
21677cfc JW |
145 | char name_idev[128]; /* input device name */ |
146 | char phys_idev[64]; /* input device phys path */ | |
21677cfc JW |
147 | |
148 | char name_touch[128]; /* touch screen name */ | |
149 | char phys_touch[64]; /* touch screen phys path */ | |
150 | struct timer_list ttimer; /* touch screen timer */ | |
151 | int touch_x; /* x coordinate on touchscreen */ | |
152 | int touch_y; /* y coordinate on touchscreen */ | |
153 | }; | |
154 | ||
155 | #define TOUCH_TIMEOUT (HZ/30) | |
21677cfc JW |
156 | |
157 | /* vfd character device file operations */ | |
158 | static const struct file_operations vfd_fops = { | |
159 | .owner = THIS_MODULE, | |
160 | .open = &display_open, | |
161 | .write = &vfd_write, | |
6038f373 AB |
162 | .release = &display_close, |
163 | .llseek = noop_llseek, | |
21677cfc JW |
164 | }; |
165 | ||
166 | /* lcd character device file operations */ | |
167 | static const struct file_operations lcd_fops = { | |
168 | .owner = THIS_MODULE, | |
169 | .open = &display_open, | |
170 | .write = &lcd_write, | |
6038f373 AB |
171 | .release = &display_close, |
172 | .llseek = noop_llseek, | |
21677cfc JW |
173 | }; |
174 | ||
175 | enum { | |
176 | IMON_DISPLAY_TYPE_AUTO = 0, | |
177 | IMON_DISPLAY_TYPE_VFD = 1, | |
178 | IMON_DISPLAY_TYPE_LCD = 2, | |
179 | IMON_DISPLAY_TYPE_VGA = 3, | |
180 | IMON_DISPLAY_TYPE_NONE = 4, | |
181 | }; | |
182 | ||
21677cfc JW |
183 | enum { |
184 | IMON_KEY_IMON = 0, | |
185 | IMON_KEY_MCE = 1, | |
186 | IMON_KEY_PANEL = 2, | |
187 | }; | |
188 | ||
26ccbec4 KB |
189 | enum { |
190 | IMON_NEED_20MS_PKT_DELAY = 1 | |
191 | }; | |
192 | ||
21677cfc JW |
193 | /* |
194 | * USB Device ID for iMON USB Control Boards | |
195 | * | |
196 | * The Windows drivers contain 6 different inf files, more or less one for | |
197 | * each new device until the 0x0034-0x0046 devices, which all use the same | |
198 | * driver. Some of the devices in the 34-46 range haven't been definitively | |
199 | * identified yet. Early devices have either a TriGem Computer, Inc. or a | |
200 | * Samsung vendor ID (0x0aa8 and 0x04e8 respectively), while all later | |
201 | * devices use the SoundGraph vendor ID (0x15c2). This driver only supports | |
202 | * the ffdc and later devices, which do onboard decoding. | |
203 | */ | |
204 | static struct usb_device_id imon_usb_id_table[] = { | |
205 | /* | |
206 | * Several devices with this same device ID, all use iMON_PAD.inf | |
207 | * SoundGraph iMON PAD (IR & VFD) | |
208 | * SoundGraph iMON PAD (IR & LCD) | |
209 | * SoundGraph iMON Knob (IR only) | |
210 | */ | |
211 | { USB_DEVICE(0x15c2, 0xffdc) }, | |
212 | ||
213 | /* | |
214 | * Newer devices, all driven by the latest iMON Windows driver, full | |
215 | * list of device IDs extracted via 'strings Setup/data1.hdr |grep 15c2' | |
216 | * Need user input to fill in details on unknown devices. | |
217 | */ | |
218 | /* SoundGraph iMON OEM Touch LCD (IR & 7" VGA LCD) */ | |
219 | { USB_DEVICE(0x15c2, 0x0034) }, | |
220 | /* SoundGraph iMON OEM Touch LCD (IR & 4.3" VGA LCD) */ | |
221 | { USB_DEVICE(0x15c2, 0x0035) }, | |
222 | /* SoundGraph iMON OEM VFD (IR & VFD) */ | |
26ccbec4 | 223 | { USB_DEVICE(0x15c2, 0x0036), .driver_info = IMON_NEED_20MS_PKT_DELAY }, |
21677cfc JW |
224 | /* device specifics unknown */ |
225 | { USB_DEVICE(0x15c2, 0x0037) }, | |
226 | /* SoundGraph iMON OEM LCD (IR & LCD) */ | |
227 | { USB_DEVICE(0x15c2, 0x0038) }, | |
228 | /* SoundGraph iMON UltraBay (IR & LCD) */ | |
229 | { USB_DEVICE(0x15c2, 0x0039) }, | |
230 | /* device specifics unknown */ | |
231 | { USB_DEVICE(0x15c2, 0x003a) }, | |
232 | /* device specifics unknown */ | |
233 | { USB_DEVICE(0x15c2, 0x003b) }, | |
234 | /* SoundGraph iMON OEM Inside (IR only) */ | |
235 | { USB_DEVICE(0x15c2, 0x003c) }, | |
236 | /* device specifics unknown */ | |
237 | { USB_DEVICE(0x15c2, 0x003d) }, | |
238 | /* device specifics unknown */ | |
239 | { USB_DEVICE(0x15c2, 0x003e) }, | |
240 | /* device specifics unknown */ | |
241 | { USB_DEVICE(0x15c2, 0x003f) }, | |
242 | /* device specifics unknown */ | |
243 | { USB_DEVICE(0x15c2, 0x0040) }, | |
244 | /* SoundGraph iMON MINI (IR only) */ | |
245 | { USB_DEVICE(0x15c2, 0x0041) }, | |
246 | /* Antec Veris Multimedia Station EZ External (IR only) */ | |
247 | { USB_DEVICE(0x15c2, 0x0042) }, | |
248 | /* Antec Veris Multimedia Station Basic Internal (IR only) */ | |
249 | { USB_DEVICE(0x15c2, 0x0043) }, | |
250 | /* Antec Veris Multimedia Station Elite (IR & VFD) */ | |
251 | { USB_DEVICE(0x15c2, 0x0044) }, | |
252 | /* Antec Veris Multimedia Station Premiere (IR & LCD) */ | |
253 | { USB_DEVICE(0x15c2, 0x0045) }, | |
254 | /* device specifics unknown */ | |
255 | { USB_DEVICE(0x15c2, 0x0046) }, | |
256 | {} | |
257 | }; | |
258 | ||
259 | /* USB Device data */ | |
260 | static struct usb_driver imon_driver = { | |
261 | .name = MOD_NAME, | |
262 | .probe = imon_probe, | |
4c62e976 | 263 | .disconnect = imon_disconnect, |
21677cfc JW |
264 | .suspend = imon_suspend, |
265 | .resume = imon_resume, | |
266 | .id_table = imon_usb_id_table, | |
267 | }; | |
268 | ||
269 | static struct usb_class_driver imon_vfd_class = { | |
270 | .name = DEVICE_NAME, | |
271 | .fops = &vfd_fops, | |
272 | .minor_base = DISPLAY_MINOR_BASE, | |
273 | }; | |
274 | ||
275 | static struct usb_class_driver imon_lcd_class = { | |
276 | .name = DEVICE_NAME, | |
277 | .fops = &lcd_fops, | |
278 | .minor_base = DISPLAY_MINOR_BASE, | |
279 | }; | |
280 | ||
281 | /* imon receiver front panel/knob key table */ | |
282 | static const struct { | |
283 | u64 hw_code; | |
284 | u32 keycode; | |
285 | } imon_panel_key_table[] = { | |
53a5fd4d JW |
286 | { 0x000000000f00ffeell, KEY_MEDIA }, /* Go */ |
287 | { 0x000000001200ffeell, KEY_UP }, | |
288 | { 0x000000001300ffeell, KEY_DOWN }, | |
289 | { 0x000000001400ffeell, KEY_LEFT }, | |
290 | { 0x000000001500ffeell, KEY_RIGHT }, | |
291 | { 0x000000001600ffeell, KEY_ENTER }, | |
292 | { 0x000000001700ffeell, KEY_ESC }, | |
1f71baef MCC |
293 | { 0x000000001f00ffeell, KEY_AUDIO }, |
294 | { 0x000000002000ffeell, KEY_VIDEO }, | |
295 | { 0x000000002100ffeell, KEY_CAMERA }, | |
296 | { 0x000000002700ffeell, KEY_DVD }, | |
297 | { 0x000000002300ffeell, KEY_TV }, | |
53a5fd4d JW |
298 | { 0x000000002b00ffeell, KEY_EXIT }, |
299 | { 0x000000002c00ffeell, KEY_SELECT }, | |
300 | { 0x000000002d00ffeell, KEY_MENU }, | |
1f71baef MCC |
301 | { 0x000000000500ffeell, KEY_PREVIOUS }, |
302 | { 0x000000000700ffeell, KEY_REWIND }, | |
303 | { 0x000000000400ffeell, KEY_STOP }, | |
304 | { 0x000000003c00ffeell, KEY_PLAYPAUSE }, | |
305 | { 0x000000000800ffeell, KEY_FASTFORWARD }, | |
306 | { 0x000000000600ffeell, KEY_NEXT }, | |
307 | { 0x000000010000ffeell, KEY_RIGHT }, | |
308 | { 0x000001000000ffeell, KEY_LEFT }, | |
309 | { 0x000000003d00ffeell, KEY_SELECT }, | |
310 | { 0x000100000000ffeell, KEY_VOLUMEUP }, | |
311 | { 0x010000000000ffeell, KEY_VOLUMEDOWN }, | |
312 | { 0x000000000100ffeell, KEY_MUTE }, | |
04292fc0 JW |
313 | /* 0xffdc iMON MCE VFD */ |
314 | { 0x00010000ffffffeell, KEY_VOLUMEUP }, | |
315 | { 0x01000000ffffffeell, KEY_VOLUMEDOWN }, | |
443b3919 JW |
316 | { 0x00000001ffffffeell, KEY_MUTE }, |
317 | { 0x0000000fffffffeell, KEY_MEDIA }, | |
318 | { 0x00000012ffffffeell, KEY_UP }, | |
319 | { 0x00000013ffffffeell, KEY_DOWN }, | |
320 | { 0x00000014ffffffeell, KEY_LEFT }, | |
321 | { 0x00000015ffffffeell, KEY_RIGHT }, | |
322 | { 0x00000016ffffffeell, KEY_ENTER }, | |
323 | { 0x00000017ffffffeell, KEY_ESC }, | |
21677cfc | 324 | /* iMON Knob values */ |
1f71baef MCC |
325 | { 0x000100ffffffffeell, KEY_VOLUMEUP }, |
326 | { 0x010000ffffffffeell, KEY_VOLUMEDOWN }, | |
327 | { 0x000008ffffffffeell, KEY_MUTE }, | |
21677cfc JW |
328 | }; |
329 | ||
330 | /* to prevent races between open() and disconnect(), probing, etc */ | |
331 | static DEFINE_MUTEX(driver_lock); | |
332 | ||
333 | /* Module bookkeeping bits */ | |
334 | MODULE_AUTHOR(MOD_AUTHOR); | |
335 | MODULE_DESCRIPTION(MOD_DESC); | |
336 | MODULE_VERSION(MOD_VERSION); | |
337 | MODULE_LICENSE("GPL"); | |
338 | MODULE_DEVICE_TABLE(usb, imon_usb_id_table); | |
339 | ||
340 | static bool debug; | |
341 | module_param(debug, bool, S_IRUGO | S_IWUSR); | |
6aa209e4 | 342 | MODULE_PARM_DESC(debug, "Debug messages: 0=no, 1=yes (default: no)"); |
21677cfc JW |
343 | |
344 | /* lcd, vfd, vga or none? should be auto-detected, but can be overridden... */ | |
345 | static int display_type; | |
346 | module_param(display_type, int, S_IRUGO); | |
347 | MODULE_PARM_DESC(display_type, "Type of attached display. 0=autodetect, " | |
348 | "1=vfd, 2=lcd, 3=vga, 4=none (default: autodetect)"); | |
349 | ||
6718e8ad JW |
350 | static int pad_stabilize = 1; |
351 | module_param(pad_stabilize, int, S_IRUGO | S_IWUSR); | |
352 | MODULE_PARM_DESC(pad_stabilize, "Apply stabilization algorithm to iMON PAD " | |
353 | "presses in arrow key mode. 0=disable, 1=enable (default)."); | |
21677cfc JW |
354 | |
355 | /* | |
356 | * In certain use cases, mouse mode isn't really helpful, and could actually | |
357 | * cause confusion, so allow disabling it when the IR device is open. | |
358 | */ | |
359 | static bool nomouse; | |
360 | module_param(nomouse, bool, S_IRUGO | S_IWUSR); | |
361 | MODULE_PARM_DESC(nomouse, "Disable mouse input device mode when IR device is " | |
362 | "open. 0=don't disable, 1=disable. (default: don't disable)"); | |
363 | ||
364 | /* threshold at which a pad push registers as an arrow key in kbd mode */ | |
365 | static int pad_thresh; | |
366 | module_param(pad_thresh, int, S_IRUGO | S_IWUSR); | |
367 | MODULE_PARM_DESC(pad_thresh, "Threshold at which a pad push registers as an " | |
368 | "arrow key in kbd mode (default: 28)"); | |
369 | ||
370 | ||
371 | static void free_imon_context(struct imon_context *ictx) | |
372 | { | |
373 | struct device *dev = ictx->dev; | |
374 | ||
375 | usb_free_urb(ictx->tx_urb); | |
376 | usb_free_urb(ictx->rx_urb_intf0); | |
377 | usb_free_urb(ictx->rx_urb_intf1); | |
378 | kfree(ictx); | |
379 | ||
380 | dev_dbg(dev, "%s: iMON context freed\n", __func__); | |
381 | } | |
382 | ||
383 | /** | |
384 | * Called when the Display device (e.g. /dev/lcd0) | |
385 | * is opened by the application. | |
386 | */ | |
387 | static int display_open(struct inode *inode, struct file *file) | |
388 | { | |
389 | struct usb_interface *interface; | |
390 | struct imon_context *ictx = NULL; | |
391 | int subminor; | |
392 | int retval = 0; | |
393 | ||
394 | /* prevent races with disconnect */ | |
395 | mutex_lock(&driver_lock); | |
396 | ||
397 | subminor = iminor(inode); | |
398 | interface = usb_find_interface(&imon_driver, subminor); | |
399 | if (!interface) { | |
e2302501 | 400 | pr_err("could not find interface for minor %d\n", subminor); |
21677cfc JW |
401 | retval = -ENODEV; |
402 | goto exit; | |
403 | } | |
404 | ictx = usb_get_intfdata(interface); | |
405 | ||
406 | if (!ictx) { | |
e2302501 | 407 | pr_err("no context found for minor %d\n", subminor); |
21677cfc JW |
408 | retval = -ENODEV; |
409 | goto exit; | |
410 | } | |
411 | ||
412 | mutex_lock(&ictx->lock); | |
413 | ||
414 | if (!ictx->display_supported) { | |
e2302501 | 415 | pr_err("display not supported by device\n"); |
21677cfc JW |
416 | retval = -ENODEV; |
417 | } else if (ictx->display_isopen) { | |
e2302501 | 418 | pr_err("display port is already open\n"); |
21677cfc JW |
419 | retval = -EBUSY; |
420 | } else { | |
f789bf40 | 421 | ictx->display_isopen = true; |
21677cfc JW |
422 | file->private_data = ictx; |
423 | dev_dbg(ictx->dev, "display port opened\n"); | |
424 | } | |
425 | ||
426 | mutex_unlock(&ictx->lock); | |
427 | ||
428 | exit: | |
429 | mutex_unlock(&driver_lock); | |
430 | return retval; | |
431 | } | |
432 | ||
433 | /** | |
434 | * Called when the display device (e.g. /dev/lcd0) | |
435 | * is closed by the application. | |
436 | */ | |
437 | static int display_close(struct inode *inode, struct file *file) | |
438 | { | |
439 | struct imon_context *ictx = NULL; | |
440 | int retval = 0; | |
441 | ||
abf84383 | 442 | ictx = file->private_data; |
21677cfc JW |
443 | |
444 | if (!ictx) { | |
e2302501 | 445 | pr_err("no context for device\n"); |
21677cfc JW |
446 | return -ENODEV; |
447 | } | |
448 | ||
449 | mutex_lock(&ictx->lock); | |
450 | ||
451 | if (!ictx->display_supported) { | |
e2302501 | 452 | pr_err("display not supported by device\n"); |
21677cfc JW |
453 | retval = -ENODEV; |
454 | } else if (!ictx->display_isopen) { | |
e2302501 | 455 | pr_err("display is not open\n"); |
21677cfc JW |
456 | retval = -EIO; |
457 | } else { | |
f789bf40 | 458 | ictx->display_isopen = false; |
21677cfc | 459 | dev_dbg(ictx->dev, "display port closed\n"); |
21677cfc JW |
460 | } |
461 | ||
462 | mutex_unlock(&ictx->lock); | |
463 | return retval; | |
464 | } | |
465 | ||
466 | /** | |
23ef710e JW |
467 | * Sends a packet to the device -- this function must be called with |
468 | * ictx->lock held, or its unlock/lock sequence while waiting for tx | |
469 | * to complete can/will lead to a deadlock. | |
21677cfc JW |
470 | */ |
471 | static int send_packet(struct imon_context *ictx) | |
472 | { | |
473 | unsigned int pipe; | |
474 | unsigned long timeout; | |
475 | int interval = 0; | |
476 | int retval = 0; | |
477 | struct usb_ctrlrequest *control_req = NULL; | |
478 | ||
479 | /* Check if we need to use control or interrupt urb */ | |
480 | if (!ictx->tx_control) { | |
481 | pipe = usb_sndintpipe(ictx->usbdev_intf0, | |
482 | ictx->tx_endpoint->bEndpointAddress); | |
483 | interval = ictx->tx_endpoint->bInterval; | |
484 | ||
485 | usb_fill_int_urb(ictx->tx_urb, ictx->usbdev_intf0, pipe, | |
486 | ictx->usb_tx_buf, | |
487 | sizeof(ictx->usb_tx_buf), | |
488 | usb_tx_callback, ictx, interval); | |
489 | ||
490 | ictx->tx_urb->actual_length = 0; | |
491 | } else { | |
492 | /* fill request into kmalloc'ed space: */ | |
493 | control_req = kmalloc(sizeof(struct usb_ctrlrequest), | |
494 | GFP_KERNEL); | |
495 | if (control_req == NULL) | |
496 | return -ENOMEM; | |
497 | ||
498 | /* setup packet is '21 09 0200 0001 0008' */ | |
499 | control_req->bRequestType = 0x21; | |
500 | control_req->bRequest = 0x09; | |
501 | control_req->wValue = cpu_to_le16(0x0200); | |
502 | control_req->wIndex = cpu_to_le16(0x0001); | |
503 | control_req->wLength = cpu_to_le16(0x0008); | |
504 | ||
505 | /* control pipe is endpoint 0x00 */ | |
506 | pipe = usb_sndctrlpipe(ictx->usbdev_intf0, 0); | |
507 | ||
508 | /* build the control urb */ | |
509 | usb_fill_control_urb(ictx->tx_urb, ictx->usbdev_intf0, | |
510 | pipe, (unsigned char *)control_req, | |
511 | ictx->usb_tx_buf, | |
512 | sizeof(ictx->usb_tx_buf), | |
513 | usb_tx_callback, ictx); | |
514 | ictx->tx_urb->actual_length = 0; | |
515 | } | |
516 | ||
517 | init_completion(&ictx->tx.finished); | |
f789bf40 | 518 | ictx->tx.busy = true; |
21677cfc JW |
519 | smp_rmb(); /* ensure later readers know we're busy */ |
520 | ||
521 | retval = usb_submit_urb(ictx->tx_urb, GFP_KERNEL); | |
522 | if (retval) { | |
f789bf40 | 523 | ictx->tx.busy = false; |
21677cfc | 524 | smp_rmb(); /* ensure later readers know we're not busy */ |
47a09b08 | 525 | pr_err_ratelimited("error submitting urb(%d)\n", retval); |
21677cfc JW |
526 | } else { |
527 | /* Wait for transmission to complete (or abort) */ | |
528 | mutex_unlock(&ictx->lock); | |
529 | retval = wait_for_completion_interruptible( | |
530 | &ictx->tx.finished); | |
5f3f254f KB |
531 | if (retval) { |
532 | usb_kill_urb(ictx->tx_urb); | |
47a09b08 | 533 | pr_err_ratelimited("task interrupted\n"); |
5f3f254f | 534 | } |
21677cfc JW |
535 | mutex_lock(&ictx->lock); |
536 | ||
537 | retval = ictx->tx.status; | |
538 | if (retval) | |
47a09b08 | 539 | pr_err_ratelimited("packet tx failed (%d)\n", retval); |
21677cfc JW |
540 | } |
541 | ||
542 | kfree(control_req); | |
543 | ||
544 | /* | |
26ccbec4 | 545 | * Induce a mandatory delay before returning, as otherwise, |
21677cfc JW |
546 | * send_packet can get called so rapidly as to overwhelm the device, |
547 | * particularly on faster systems and/or those with quirky usb. | |
548 | */ | |
26ccbec4 KB |
549 | timeout = msecs_to_jiffies(ictx->send_packet_delay); |
550 | set_current_state(TASK_INTERRUPTIBLE); | |
21677cfc JW |
551 | schedule_timeout(timeout); |
552 | ||
553 | return retval; | |
554 | } | |
555 | ||
556 | /** | |
557 | * Sends an associate packet to the iMON 2.4G. | |
558 | * | |
559 | * This might not be such a good idea, since it has an id collision with | |
560 | * some versions of the "IR & VFD" combo. The only way to determine if it | |
561 | * is an RF version is to look at the product description string. (Which | |
562 | * we currently do not fetch). | |
563 | */ | |
564 | static int send_associate_24g(struct imon_context *ictx) | |
565 | { | |
566 | int retval; | |
567 | const unsigned char packet[8] = { 0x01, 0x00, 0x00, 0x00, | |
568 | 0x00, 0x00, 0x00, 0x20 }; | |
569 | ||
570 | if (!ictx) { | |
e2302501 | 571 | pr_err("no context for device\n"); |
21677cfc JW |
572 | return -ENODEV; |
573 | } | |
574 | ||
575 | if (!ictx->dev_present_intf0) { | |
e2302501 | 576 | pr_err("no iMON device present\n"); |
21677cfc JW |
577 | return -ENODEV; |
578 | } | |
579 | ||
580 | memcpy(ictx->usb_tx_buf, packet, sizeof(packet)); | |
581 | retval = send_packet(ictx); | |
582 | ||
583 | return retval; | |
584 | } | |
585 | ||
586 | /** | |
587 | * Sends packets to setup and show clock on iMON display | |
588 | * | |
589 | * Arguments: year - last 2 digits of year, month - 1..12, | |
590 | * day - 1..31, dow - day of the week (0-Sun...6-Sat), | |
591 | * hour - 0..23, minute - 0..59, second - 0..59 | |
592 | */ | |
593 | static int send_set_imon_clock(struct imon_context *ictx, | |
594 | unsigned int year, unsigned int month, | |
595 | unsigned int day, unsigned int dow, | |
596 | unsigned int hour, unsigned int minute, | |
597 | unsigned int second) | |
598 | { | |
599 | unsigned char clock_enable_pkt[IMON_CLOCK_ENABLE_PACKETS][8]; | |
600 | int retval = 0; | |
601 | int i; | |
602 | ||
603 | if (!ictx) { | |
e2302501 | 604 | pr_err("no context for device\n"); |
21677cfc JW |
605 | return -ENODEV; |
606 | } | |
607 | ||
608 | switch (ictx->display_type) { | |
609 | case IMON_DISPLAY_TYPE_LCD: | |
610 | clock_enable_pkt[0][0] = 0x80; | |
611 | clock_enable_pkt[0][1] = year; | |
612 | clock_enable_pkt[0][2] = month-1; | |
613 | clock_enable_pkt[0][3] = day; | |
614 | clock_enable_pkt[0][4] = hour; | |
615 | clock_enable_pkt[0][5] = minute; | |
616 | clock_enable_pkt[0][6] = second; | |
617 | ||
618 | clock_enable_pkt[1][0] = 0x80; | |
619 | clock_enable_pkt[1][1] = 0; | |
620 | clock_enable_pkt[1][2] = 0; | |
621 | clock_enable_pkt[1][3] = 0; | |
622 | clock_enable_pkt[1][4] = 0; | |
623 | clock_enable_pkt[1][5] = 0; | |
624 | clock_enable_pkt[1][6] = 0; | |
625 | ||
626 | if (ictx->product == 0xffdc) { | |
627 | clock_enable_pkt[0][7] = 0x50; | |
628 | clock_enable_pkt[1][7] = 0x51; | |
629 | } else { | |
630 | clock_enable_pkt[0][7] = 0x88; | |
631 | clock_enable_pkt[1][7] = 0x8a; | |
632 | } | |
633 | ||
634 | break; | |
635 | ||
636 | case IMON_DISPLAY_TYPE_VFD: | |
637 | clock_enable_pkt[0][0] = year; | |
638 | clock_enable_pkt[0][1] = month-1; | |
639 | clock_enable_pkt[0][2] = day; | |
640 | clock_enable_pkt[0][3] = dow; | |
641 | clock_enable_pkt[0][4] = hour; | |
642 | clock_enable_pkt[0][5] = minute; | |
643 | clock_enable_pkt[0][6] = second; | |
644 | clock_enable_pkt[0][7] = 0x40; | |
645 | ||
646 | clock_enable_pkt[1][0] = 0; | |
647 | clock_enable_pkt[1][1] = 0; | |
648 | clock_enable_pkt[1][2] = 1; | |
649 | clock_enable_pkt[1][3] = 0; | |
650 | clock_enable_pkt[1][4] = 0; | |
651 | clock_enable_pkt[1][5] = 0; | |
652 | clock_enable_pkt[1][6] = 0; | |
653 | clock_enable_pkt[1][7] = 0x42; | |
654 | ||
655 | break; | |
656 | ||
657 | default: | |
658 | return -ENODEV; | |
659 | } | |
660 | ||
661 | for (i = 0; i < IMON_CLOCK_ENABLE_PACKETS; i++) { | |
662 | memcpy(ictx->usb_tx_buf, clock_enable_pkt[i], 8); | |
663 | retval = send_packet(ictx); | |
664 | if (retval) { | |
e2302501 | 665 | pr_err("send_packet failed for packet %d\n", i); |
21677cfc JW |
666 | break; |
667 | } | |
668 | } | |
669 | ||
670 | return retval; | |
671 | } | |
672 | ||
673 | /** | |
674 | * These are the sysfs functions to handle the association on the iMON 2.4G LT. | |
675 | */ | |
676 | static ssize_t show_associate_remote(struct device *d, | |
677 | struct device_attribute *attr, | |
678 | char *buf) | |
679 | { | |
680 | struct imon_context *ictx = dev_get_drvdata(d); | |
681 | ||
682 | if (!ictx) | |
683 | return -ENODEV; | |
684 | ||
685 | mutex_lock(&ictx->lock); | |
686 | if (ictx->rf_isassociating) | |
687 | strcpy(buf, "associating\n"); | |
688 | else | |
689 | strcpy(buf, "closed\n"); | |
690 | ||
691 | dev_info(d, "Visit http://www.lirc.org/html/imon-24g.html for " | |
692 | "instructions on how to associate your iMON 2.4G DT/LT " | |
693 | "remote\n"); | |
694 | mutex_unlock(&ictx->lock); | |
695 | return strlen(buf); | |
696 | } | |
697 | ||
698 | static ssize_t store_associate_remote(struct device *d, | |
699 | struct device_attribute *attr, | |
700 | const char *buf, size_t count) | |
701 | { | |
702 | struct imon_context *ictx; | |
703 | ||
704 | ictx = dev_get_drvdata(d); | |
705 | ||
706 | if (!ictx) | |
707 | return -ENODEV; | |
708 | ||
709 | mutex_lock(&ictx->lock); | |
f789bf40 | 710 | ictx->rf_isassociating = true; |
21677cfc JW |
711 | send_associate_24g(ictx); |
712 | mutex_unlock(&ictx->lock); | |
713 | ||
714 | return count; | |
715 | } | |
716 | ||
717 | /** | |
718 | * sysfs functions to control internal imon clock | |
719 | */ | |
720 | static ssize_t show_imon_clock(struct device *d, | |
721 | struct device_attribute *attr, char *buf) | |
722 | { | |
723 | struct imon_context *ictx = dev_get_drvdata(d); | |
724 | size_t len; | |
725 | ||
726 | if (!ictx) | |
727 | return -ENODEV; | |
728 | ||
729 | mutex_lock(&ictx->lock); | |
730 | ||
731 | if (!ictx->display_supported) { | |
732 | len = snprintf(buf, PAGE_SIZE, "Not supported."); | |
733 | } else { | |
734 | len = snprintf(buf, PAGE_SIZE, | |
735 | "To set the clock on your iMON display:\n" | |
736 | "# date \"+%%y %%m %%d %%w %%H %%M %%S\" > imon_clock\n" | |
737 | "%s", ictx->display_isopen ? | |
738 | "\nNOTE: imon device must be closed\n" : ""); | |
739 | } | |
740 | ||
741 | mutex_unlock(&ictx->lock); | |
742 | ||
743 | return len; | |
744 | } | |
745 | ||
746 | static ssize_t store_imon_clock(struct device *d, | |
747 | struct device_attribute *attr, | |
748 | const char *buf, size_t count) | |
749 | { | |
750 | struct imon_context *ictx = dev_get_drvdata(d); | |
751 | ssize_t retval; | |
752 | unsigned int year, month, day, dow, hour, minute, second; | |
753 | ||
754 | if (!ictx) | |
755 | return -ENODEV; | |
756 | ||
757 | mutex_lock(&ictx->lock); | |
758 | ||
759 | if (!ictx->display_supported) { | |
760 | retval = -ENODEV; | |
761 | goto exit; | |
762 | } else if (ictx->display_isopen) { | |
763 | retval = -EBUSY; | |
764 | goto exit; | |
765 | } | |
766 | ||
767 | if (sscanf(buf, "%u %u %u %u %u %u %u", &year, &month, &day, &dow, | |
768 | &hour, &minute, &second) != 7) { | |
769 | retval = -EINVAL; | |
770 | goto exit; | |
771 | } | |
772 | ||
773 | if ((month < 1 || month > 12) || | |
774 | (day < 1 || day > 31) || (dow > 6) || | |
775 | (hour > 23) || (minute > 59) || (second > 59)) { | |
776 | retval = -EINVAL; | |
777 | goto exit; | |
778 | } | |
779 | ||
780 | retval = send_set_imon_clock(ictx, year, month, day, dow, | |
781 | hour, minute, second); | |
782 | if (retval) | |
783 | goto exit; | |
784 | ||
785 | retval = count; | |
786 | exit: | |
787 | mutex_unlock(&ictx->lock); | |
788 | ||
789 | return retval; | |
790 | } | |
791 | ||
792 | ||
793 | static DEVICE_ATTR(imon_clock, S_IWUSR | S_IRUGO, show_imon_clock, | |
794 | store_imon_clock); | |
795 | ||
796 | static DEVICE_ATTR(associate_remote, S_IWUSR | S_IRUGO, show_associate_remote, | |
797 | store_associate_remote); | |
798 | ||
799 | static struct attribute *imon_display_sysfs_entries[] = { | |
800 | &dev_attr_imon_clock.attr, | |
801 | NULL | |
802 | }; | |
803 | ||
6aa209e4 | 804 | static struct attribute_group imon_display_attr_group = { |
21677cfc JW |
805 | .attrs = imon_display_sysfs_entries |
806 | }; | |
807 | ||
808 | static struct attribute *imon_rf_sysfs_entries[] = { | |
809 | &dev_attr_associate_remote.attr, | |
810 | NULL | |
811 | }; | |
812 | ||
6aa209e4 | 813 | static struct attribute_group imon_rf_attr_group = { |
21677cfc JW |
814 | .attrs = imon_rf_sysfs_entries |
815 | }; | |
816 | ||
817 | /** | |
818 | * Writes data to the VFD. The iMON VFD is 2x16 characters | |
819 | * and requires data in 5 consecutive USB interrupt packets, | |
820 | * each packet but the last carrying 7 bytes. | |
821 | * | |
822 | * I don't know if the VFD board supports features such as | |
823 | * scrolling, clearing rows, blanking, etc. so at | |
824 | * the caller must provide a full screen of data. If fewer | |
825 | * than 32 bytes are provided spaces will be appended to | |
826 | * generate a full screen. | |
827 | */ | |
828 | static ssize_t vfd_write(struct file *file, const char *buf, | |
829 | size_t n_bytes, loff_t *pos) | |
830 | { | |
831 | int i; | |
832 | int offset; | |
833 | int seq; | |
834 | int retval = 0; | |
835 | struct imon_context *ictx; | |
836 | const unsigned char vfd_packet6[] = { | |
837 | 0x01, 0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF }; | |
838 | ||
abf84383 | 839 | ictx = file->private_data; |
21677cfc | 840 | if (!ictx) { |
47a09b08 | 841 | pr_err_ratelimited("no context for device\n"); |
21677cfc JW |
842 | return -ENODEV; |
843 | } | |
844 | ||
845 | mutex_lock(&ictx->lock); | |
846 | ||
847 | if (!ictx->dev_present_intf0) { | |
47a09b08 | 848 | pr_err_ratelimited("no iMON device present\n"); |
21677cfc JW |
849 | retval = -ENODEV; |
850 | goto exit; | |
851 | } | |
852 | ||
853 | if (n_bytes <= 0 || n_bytes > 32) { | |
47a09b08 | 854 | pr_err_ratelimited("invalid payload size\n"); |
21677cfc JW |
855 | retval = -EINVAL; |
856 | goto exit; | |
857 | } | |
858 | ||
859 | if (copy_from_user(ictx->tx.data_buf, buf, n_bytes)) { | |
860 | retval = -EFAULT; | |
861 | goto exit; | |
862 | } | |
863 | ||
864 | /* Pad with spaces */ | |
865 | for (i = n_bytes; i < 32; ++i) | |
866 | ictx->tx.data_buf[i] = ' '; | |
867 | ||
868 | for (i = 32; i < 35; ++i) | |
869 | ictx->tx.data_buf[i] = 0xFF; | |
870 | ||
871 | offset = 0; | |
872 | seq = 0; | |
873 | ||
874 | do { | |
875 | memcpy(ictx->usb_tx_buf, ictx->tx.data_buf + offset, 7); | |
876 | ictx->usb_tx_buf[7] = (unsigned char) seq; | |
877 | ||
878 | retval = send_packet(ictx); | |
879 | if (retval) { | |
47a09b08 | 880 | pr_err_ratelimited("send packet #%d failed\n", seq / 2); |
21677cfc JW |
881 | goto exit; |
882 | } else { | |
883 | seq += 2; | |
884 | offset += 7; | |
885 | } | |
886 | ||
887 | } while (offset < 35); | |
888 | ||
889 | /* Send packet #6 */ | |
890 | memcpy(ictx->usb_tx_buf, &vfd_packet6, sizeof(vfd_packet6)); | |
891 | ictx->usb_tx_buf[7] = (unsigned char) seq; | |
892 | retval = send_packet(ictx); | |
893 | if (retval) | |
47a09b08 | 894 | pr_err_ratelimited("send packet #%d failed\n", seq / 2); |
21677cfc JW |
895 | |
896 | exit: | |
897 | mutex_unlock(&ictx->lock); | |
898 | ||
899 | return (!retval) ? n_bytes : retval; | |
900 | } | |
901 | ||
902 | /** | |
903 | * Writes data to the LCD. The iMON OEM LCD screen expects 8-byte | |
904 | * packets. We accept data as 16 hexadecimal digits, followed by a | |
905 | * newline (to make it easy to drive the device from a command-line | |
906 | * -- even though the actual binary data is a bit complicated). | |
907 | * | |
908 | * The device itself is not a "traditional" text-mode display. It's | |
909 | * actually a 16x96 pixel bitmap display. That means if you want to | |
910 | * display text, you've got to have your own "font" and translate the | |
911 | * text into bitmaps for display. This is really flexible (you can | |
912 | * display whatever diacritics you need, and so on), but it's also | |
913 | * a lot more complicated than most LCDs... | |
914 | */ | |
915 | static ssize_t lcd_write(struct file *file, const char *buf, | |
916 | size_t n_bytes, loff_t *pos) | |
917 | { | |
918 | int retval = 0; | |
919 | struct imon_context *ictx; | |
920 | ||
abf84383 | 921 | ictx = file->private_data; |
21677cfc | 922 | if (!ictx) { |
47a09b08 | 923 | pr_err_ratelimited("no context for device\n"); |
21677cfc JW |
924 | return -ENODEV; |
925 | } | |
926 | ||
927 | mutex_lock(&ictx->lock); | |
928 | ||
929 | if (!ictx->display_supported) { | |
47a09b08 | 930 | pr_err_ratelimited("no iMON display present\n"); |
21677cfc JW |
931 | retval = -ENODEV; |
932 | goto exit; | |
933 | } | |
934 | ||
935 | if (n_bytes != 8) { | |
47a09b08 JW |
936 | pr_err_ratelimited("invalid payload size: %d (expected 8)\n", |
937 | (int)n_bytes); | |
21677cfc JW |
938 | retval = -EINVAL; |
939 | goto exit; | |
940 | } | |
941 | ||
942 | if (copy_from_user(ictx->usb_tx_buf, buf, 8)) { | |
943 | retval = -EFAULT; | |
944 | goto exit; | |
945 | } | |
946 | ||
947 | retval = send_packet(ictx); | |
948 | if (retval) { | |
47a09b08 | 949 | pr_err_ratelimited("send packet failed!\n"); |
21677cfc JW |
950 | goto exit; |
951 | } else { | |
952 | dev_dbg(ictx->dev, "%s: write %d bytes to LCD\n", | |
953 | __func__, (int) n_bytes); | |
954 | } | |
955 | exit: | |
956 | mutex_unlock(&ictx->lock); | |
957 | return (!retval) ? n_bytes : retval; | |
958 | } | |
959 | ||
960 | /** | |
961 | * Callback function for USB core API: transmit data | |
962 | */ | |
963 | static void usb_tx_callback(struct urb *urb) | |
964 | { | |
965 | struct imon_context *ictx; | |
966 | ||
967 | if (!urb) | |
968 | return; | |
969 | ictx = (struct imon_context *)urb->context; | |
970 | if (!ictx) | |
971 | return; | |
972 | ||
973 | ictx->tx.status = urb->status; | |
974 | ||
975 | /* notify waiters that write has finished */ | |
f789bf40 | 976 | ictx->tx.busy = false; |
21677cfc JW |
977 | smp_rmb(); /* ensure later readers know we're not busy */ |
978 | complete(&ictx->tx.finished); | |
979 | } | |
980 | ||
21677cfc JW |
981 | /** |
982 | * report touchscreen input | |
983 | */ | |
984 | static void imon_touch_display_timeout(unsigned long data) | |
985 | { | |
986 | struct imon_context *ictx = (struct imon_context *)data; | |
987 | ||
f03900d6 | 988 | if (ictx->display_type != IMON_DISPLAY_TYPE_VGA) |
21677cfc JW |
989 | return; |
990 | ||
991 | input_report_abs(ictx->touch, ABS_X, ictx->touch_x); | |
992 | input_report_abs(ictx->touch, ABS_Y, ictx->touch_y); | |
993 | input_report_key(ictx->touch, BTN_TOUCH, 0x00); | |
994 | input_sync(ictx->touch); | |
995 | } | |
996 | ||
997 | /** | |
998 | * iMON IR receivers support two different signal sets -- those used by | |
999 | * the iMON remotes, and those used by the Windows MCE remotes (which is | |
1000 | * really just RC-6), but only one or the other at a time, as the signals | |
1001 | * are decoded onboard the receiver. | |
23ef710e JW |
1002 | * |
1003 | * This function gets called two different ways, one way is from | |
1004 | * rc_register_device, for initial protocol selection/setup, and the other is | |
1005 | * via a userspace-initiated protocol change request, either by direct sysfs | |
1006 | * prodding or by something like ir-keytable. In the rc_register_device case, | |
1007 | * the imon context lock is already held, but when initiated from userspace, | |
1008 | * it is not, so we must acquire it prior to calling send_packet, which | |
1009 | * requires that the lock is held. | |
21677cfc | 1010 | */ |
c003ab1b | 1011 | static int imon_ir_change_protocol(struct rc_dev *rc, u64 *rc_type) |
21677cfc JW |
1012 | { |
1013 | int retval; | |
d8b4b582 | 1014 | struct imon_context *ictx = rc->priv; |
21677cfc | 1015 | struct device *dev = ictx->dev; |
23ef710e | 1016 | bool unlock = false; |
21677cfc JW |
1017 | unsigned char ir_proto_packet[] = { |
1018 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x86 }; | |
1019 | ||
c003ab1b | 1020 | if (*rc_type && !(*rc_type & rc->allowed_protos)) |
21677cfc JW |
1021 | dev_warn(dev, "Looks like you're trying to use an IR protocol " |
1022 | "this device does not support\n"); | |
1023 | ||
c003ab1b | 1024 | if (*rc_type & RC_BIT_RC6_MCE) { |
21677cfc JW |
1025 | dev_dbg(dev, "Configuring IR receiver for MCE protocol\n"); |
1026 | ir_proto_packet[0] = 0x01; | |
c003ab1b DH |
1027 | *rc_type = RC_BIT_RC6_MCE; |
1028 | } else if (*rc_type & RC_BIT_OTHER) { | |
666a9ed8 | 1029 | dev_dbg(dev, "Configuring IR receiver for iMON protocol\n"); |
76f1ef42 | 1030 | if (!pad_stabilize) |
666a9ed8 | 1031 | dev_dbg(dev, "PAD stabilize functionality disabled\n"); |
21677cfc | 1032 | /* ir_proto_packet[0] = 0x00; // already the default */ |
c003ab1b DH |
1033 | *rc_type = RC_BIT_OTHER; |
1034 | } else { | |
6718e8ad | 1035 | dev_warn(dev, "Unsupported IR protocol specified, overriding " |
666a9ed8 | 1036 | "to iMON IR protocol\n"); |
76f1ef42 | 1037 | if (!pad_stabilize) |
666a9ed8 | 1038 | dev_dbg(dev, "PAD stabilize functionality disabled\n"); |
6718e8ad | 1039 | /* ir_proto_packet[0] = 0x00; // already the default */ |
c003ab1b | 1040 | *rc_type = RC_BIT_OTHER; |
21677cfc JW |
1041 | } |
1042 | ||
1043 | memcpy(ictx->usb_tx_buf, &ir_proto_packet, sizeof(ir_proto_packet)); | |
1044 | ||
23ef710e JW |
1045 | if (!mutex_is_locked(&ictx->lock)) { |
1046 | unlock = true; | |
1047 | mutex_lock(&ictx->lock); | |
1048 | } | |
1049 | ||
21677cfc | 1050 | retval = send_packet(ictx); |
6718e8ad JW |
1051 | if (retval) |
1052 | goto out; | |
1053 | ||
c003ab1b | 1054 | ictx->rc_type = *rc_type; |
76f1ef42 | 1055 | ictx->pad_mouse = false; |
6718e8ad JW |
1056 | |
1057 | out: | |
23ef710e JW |
1058 | if (unlock) |
1059 | mutex_unlock(&ictx->lock); | |
1060 | ||
6718e8ad | 1061 | return retval; |
21677cfc JW |
1062 | } |
1063 | ||
1064 | static inline int tv2int(const struct timeval *a, const struct timeval *b) | |
1065 | { | |
1066 | int usecs = 0; | |
1067 | int sec = 0; | |
1068 | ||
1069 | if (b->tv_usec > a->tv_usec) { | |
1070 | usecs = 1000000; | |
1071 | sec--; | |
1072 | } | |
1073 | ||
1074 | usecs += a->tv_usec - b->tv_usec; | |
1075 | ||
1076 | sec += a->tv_sec - b->tv_sec; | |
1077 | sec *= 1000; | |
1078 | usecs /= 1000; | |
1079 | sec += usecs; | |
1080 | ||
1081 | if (sec < 0) | |
1082 | sec = 1000; | |
1083 | ||
1084 | return sec; | |
1085 | } | |
1086 | ||
1087 | /** | |
1088 | * The directional pad behaves a bit differently, depending on whether this is | |
1089 | * one of the older ffdc devices or a newer device. Newer devices appear to | |
1090 | * have a higher resolution matrix for more precise mouse movement, but it | |
1091 | * makes things overly sensitive in keyboard mode, so we do some interesting | |
1092 | * contortions to make it less touchy. Older devices run through the same | |
1093 | * routine with shorter timeout and a smaller threshold. | |
1094 | */ | |
1095 | static int stabilize(int a, int b, u16 timeout, u16 threshold) | |
1096 | { | |
1097 | struct timeval ct; | |
1098 | static struct timeval prev_time = {0, 0}; | |
1099 | static struct timeval hit_time = {0, 0}; | |
1100 | static int x, y, prev_result, hits; | |
1101 | int result = 0; | |
1102 | int msec, msec_hit; | |
1103 | ||
1104 | do_gettimeofday(&ct); | |
1105 | msec = tv2int(&ct, &prev_time); | |
1106 | msec_hit = tv2int(&ct, &hit_time); | |
1107 | ||
1108 | if (msec > 100) { | |
1109 | x = 0; | |
1110 | y = 0; | |
1111 | hits = 0; | |
1112 | } | |
1113 | ||
1114 | x += a; | |
1115 | y += b; | |
1116 | ||
1117 | prev_time = ct; | |
1118 | ||
1119 | if (abs(x) > threshold || abs(y) > threshold) { | |
1120 | if (abs(y) > abs(x)) | |
1121 | result = (y > 0) ? 0x7F : 0x80; | |
1122 | else | |
1123 | result = (x > 0) ? 0x7F00 : 0x8000; | |
1124 | ||
1125 | x = 0; | |
1126 | y = 0; | |
1127 | ||
1128 | if (result == prev_result) { | |
1129 | hits++; | |
1130 | ||
1131 | if (hits > 3) { | |
1132 | switch (result) { | |
1133 | case 0x7F: | |
1134 | y = 17 * threshold / 30; | |
1135 | break; | |
1136 | case 0x80: | |
1137 | y -= 17 * threshold / 30; | |
1138 | break; | |
1139 | case 0x7F00: | |
1140 | x = 17 * threshold / 30; | |
1141 | break; | |
1142 | case 0x8000: | |
1143 | x -= 17 * threshold / 30; | |
1144 | break; | |
1145 | } | |
1146 | } | |
1147 | ||
1148 | if (hits == 2 && msec_hit < timeout) { | |
1149 | result = 0; | |
1150 | hits = 1; | |
1151 | } | |
1152 | } else { | |
1153 | prev_result = result; | |
1154 | hits = 1; | |
1155 | hit_time = ct; | |
1156 | } | |
1157 | } | |
1158 | ||
1159 | return result; | |
1160 | } | |
1161 | ||
eaf2bcc9 | 1162 | static u32 imon_remote_key_lookup(struct imon_context *ictx, u32 scancode) |
21677cfc | 1163 | { |
21677cfc JW |
1164 | u32 keycode; |
1165 | u32 release; | |
1166 | bool is_release_code = false; | |
1167 | ||
1168 | /* Look for the initial press of a button */ | |
ca86674b | 1169 | keycode = rc_g_keycode_from_table(ictx->rdev, scancode); |
eaf2bcc9 DH |
1170 | ictx->rc_toggle = 0x0; |
1171 | ictx->rc_scancode = scancode; | |
21677cfc JW |
1172 | |
1173 | /* Look for the release of a button */ | |
1174 | if (keycode == KEY_RESERVED) { | |
1175 | release = scancode & ~0x4000; | |
ca86674b | 1176 | keycode = rc_g_keycode_from_table(ictx->rdev, release); |
21677cfc JW |
1177 | if (keycode != KEY_RESERVED) |
1178 | is_release_code = true; | |
1179 | } | |
1180 | ||
1181 | ictx->release_code = is_release_code; | |
1182 | ||
1183 | return keycode; | |
1184 | } | |
1185 | ||
eaf2bcc9 | 1186 | static u32 imon_mce_key_lookup(struct imon_context *ictx, u32 scancode) |
21677cfc | 1187 | { |
21677cfc JW |
1188 | u32 keycode; |
1189 | ||
1190 | #define MCE_KEY_MASK 0x7000 | |
1191 | #define MCE_TOGGLE_BIT 0x8000 | |
1192 | ||
1193 | /* | |
1194 | * On some receivers, mce keys decode to 0x8000f04xx and 0x8000f84xx | |
1195 | * (the toggle bit flipping between alternating key presses), while | |
1196 | * on other receivers, we see 0x8000f74xx and 0x8000ff4xx. To keep | |
1197 | * the table trim, we always or in the bits to look up 0x8000ff4xx, | |
1198 | * but we can't or them into all codes, as some keys are decoded in | |
1199 | * a different way w/o the same use of the toggle bit... | |
1200 | */ | |
eaf2bcc9 | 1201 | if (scancode & 0x80000000) |
21677cfc JW |
1202 | scancode = scancode | MCE_KEY_MASK | MCE_TOGGLE_BIT; |
1203 | ||
eaf2bcc9 | 1204 | ictx->rc_scancode = scancode; |
ca86674b | 1205 | keycode = rc_g_keycode_from_table(ictx->rdev, scancode); |
eaf2bcc9 DH |
1206 | |
1207 | /* not used in mce mode, but make sure we know its false */ | |
1208 | ictx->release_code = false; | |
21677cfc JW |
1209 | |
1210 | return keycode; | |
1211 | } | |
1212 | ||
eaf2bcc9 | 1213 | static u32 imon_panel_key_lookup(u64 code) |
21677cfc JW |
1214 | { |
1215 | int i; | |
083e4721 | 1216 | u32 keycode = KEY_RESERVED; |
21677cfc | 1217 | |
083e4721 JW |
1218 | for (i = 0; i < ARRAY_SIZE(imon_panel_key_table); i++) { |
1219 | if (imon_panel_key_table[i].hw_code == (code | 0xffee)) { | |
1220 | keycode = imon_panel_key_table[i].keycode; | |
21677cfc | 1221 | break; |
083e4721 JW |
1222 | } |
1223 | } | |
21677cfc JW |
1224 | |
1225 | return keycode; | |
1226 | } | |
1227 | ||
1228 | static bool imon_mouse_event(struct imon_context *ictx, | |
1229 | unsigned char *buf, int len) | |
1230 | { | |
24dec5da | 1231 | signed char rel_x = 0x00, rel_y = 0x00; |
21677cfc | 1232 | u8 right_shift = 1; |
f789bf40 | 1233 | bool mouse_input = true; |
21677cfc | 1234 | int dir = 0; |
693508df JW |
1235 | unsigned long flags; |
1236 | ||
1237 | spin_lock_irqsave(&ictx->kc_lock, flags); | |
21677cfc JW |
1238 | |
1239 | /* newer iMON device PAD or mouse button */ | |
1240 | if (ictx->product != 0xffdc && (buf[0] & 0x01) && len == 5) { | |
1241 | rel_x = buf[2]; | |
1242 | rel_y = buf[3]; | |
1243 | right_shift = 1; | |
1244 | /* 0xffdc iMON PAD or mouse button input */ | |
1245 | } else if (ictx->product == 0xffdc && (buf[0] & 0x40) && | |
1246 | !((buf[1] & 0x01) || ((buf[1] >> 2) & 0x01))) { | |
1247 | rel_x = (buf[1] & 0x08) | (buf[1] & 0x10) >> 2 | | |
1248 | (buf[1] & 0x20) >> 4 | (buf[1] & 0x40) >> 6; | |
1249 | if (buf[0] & 0x02) | |
1250 | rel_x |= ~0x0f; | |
1251 | rel_x = rel_x + rel_x / 2; | |
1252 | rel_y = (buf[2] & 0x08) | (buf[2] & 0x10) >> 2 | | |
1253 | (buf[2] & 0x20) >> 4 | (buf[2] & 0x40) >> 6; | |
1254 | if (buf[0] & 0x01) | |
1255 | rel_y |= ~0x0f; | |
1256 | rel_y = rel_y + rel_y / 2; | |
1257 | right_shift = 2; | |
1258 | /* some ffdc devices decode mouse buttons differently... */ | |
1259 | } else if (ictx->product == 0xffdc && (buf[0] == 0x68)) { | |
1260 | right_shift = 2; | |
1261 | /* ch+/- buttons, which we use for an emulated scroll wheel */ | |
1262 | } else if (ictx->kc == KEY_CHANNELUP && (buf[2] & 0x40) != 0x40) { | |
1263 | dir = 1; | |
1264 | } else if (ictx->kc == KEY_CHANNELDOWN && (buf[2] & 0x40) != 0x40) { | |
1265 | dir = -1; | |
1266 | } else | |
f789bf40 | 1267 | mouse_input = false; |
21677cfc | 1268 | |
693508df JW |
1269 | spin_unlock_irqrestore(&ictx->kc_lock, flags); |
1270 | ||
21677cfc JW |
1271 | if (mouse_input) { |
1272 | dev_dbg(ictx->dev, "sending mouse data via input subsystem\n"); | |
1273 | ||
1274 | if (dir) { | |
1275 | input_report_rel(ictx->idev, REL_WHEEL, dir); | |
1276 | } else if (rel_x || rel_y) { | |
1277 | input_report_rel(ictx->idev, REL_X, rel_x); | |
1278 | input_report_rel(ictx->idev, REL_Y, rel_y); | |
1279 | } else { | |
1280 | input_report_key(ictx->idev, BTN_LEFT, buf[1] & 0x1); | |
1281 | input_report_key(ictx->idev, BTN_RIGHT, | |
1282 | buf[1] >> right_shift & 0x1); | |
1283 | } | |
1284 | input_sync(ictx->idev); | |
693508df | 1285 | spin_lock_irqsave(&ictx->kc_lock, flags); |
21677cfc | 1286 | ictx->last_keycode = ictx->kc; |
693508df | 1287 | spin_unlock_irqrestore(&ictx->kc_lock, flags); |
21677cfc JW |
1288 | } |
1289 | ||
1290 | return mouse_input; | |
1291 | } | |
1292 | ||
1293 | static void imon_touch_event(struct imon_context *ictx, unsigned char *buf) | |
1294 | { | |
1295 | mod_timer(&ictx->ttimer, jiffies + TOUCH_TIMEOUT); | |
1296 | ictx->touch_x = (buf[0] << 4) | (buf[1] >> 4); | |
1297 | ictx->touch_y = 0xfff - ((buf[2] << 4) | (buf[1] & 0xf)); | |
1298 | input_report_abs(ictx->touch, ABS_X, ictx->touch_x); | |
1299 | input_report_abs(ictx->touch, ABS_Y, ictx->touch_y); | |
1300 | input_report_key(ictx->touch, BTN_TOUCH, 0x01); | |
1301 | input_sync(ictx->touch); | |
1302 | } | |
1303 | ||
1304 | static void imon_pad_to_keys(struct imon_context *ictx, unsigned char *buf) | |
1305 | { | |
1306 | int dir = 0; | |
24dec5da | 1307 | signed char rel_x = 0x00, rel_y = 0x00; |
21677cfc | 1308 | u16 timeout, threshold; |
eaf2bcc9 | 1309 | u32 scancode = KEY_RESERVED; |
693508df | 1310 | unsigned long flags; |
21677cfc JW |
1311 | |
1312 | /* | |
1313 | * The imon directional pad functions more like a touchpad. Bytes 3 & 4 | |
1314 | * contain a position coordinate (x,y), with each component ranging | |
1315 | * from -14 to 14. We want to down-sample this to only 4 discrete values | |
1316 | * for up/down/left/right arrow keys. Also, when you get too close to | |
25985edc | 1317 | * diagonals, it has a tendency to jump back and forth, so lets try to |
21677cfc JW |
1318 | * ignore when they get too close. |
1319 | */ | |
1320 | if (ictx->product != 0xffdc) { | |
1321 | /* first, pad to 8 bytes so it conforms with everything else */ | |
1322 | buf[5] = buf[6] = buf[7] = 0; | |
1323 | timeout = 500; /* in msecs */ | |
1324 | /* (2*threshold) x (2*threshold) square */ | |
1325 | threshold = pad_thresh ? pad_thresh : 28; | |
1326 | rel_x = buf[2]; | |
1327 | rel_y = buf[3]; | |
1328 | ||
c003ab1b | 1329 | if (ictx->rc_type == RC_BIT_OTHER && pad_stabilize) { |
21677cfc JW |
1330 | if ((buf[1] == 0) && ((rel_x != 0) || (rel_y != 0))) { |
1331 | dir = stabilize((int)rel_x, (int)rel_y, | |
1332 | timeout, threshold); | |
1333 | if (!dir) { | |
693508df JW |
1334 | spin_lock_irqsave(&ictx->kc_lock, |
1335 | flags); | |
21677cfc | 1336 | ictx->kc = KEY_UNKNOWN; |
693508df JW |
1337 | spin_unlock_irqrestore(&ictx->kc_lock, |
1338 | flags); | |
21677cfc JW |
1339 | return; |
1340 | } | |
1341 | buf[2] = dir & 0xFF; | |
1342 | buf[3] = (dir >> 8) & 0xFF; | |
eaf2bcc9 | 1343 | scancode = be32_to_cpu(*((u32 *)buf)); |
21677cfc JW |
1344 | } |
1345 | } else { | |
eaf2bcc9 DH |
1346 | /* |
1347 | * Hack alert: instead of using keycodes, we have | |
1348 | * to use hard-coded scancodes here... | |
1349 | */ | |
21677cfc JW |
1350 | if (abs(rel_y) > abs(rel_x)) { |
1351 | buf[2] = (rel_y > 0) ? 0x7F : 0x80; | |
1352 | buf[3] = 0; | |
eaf2bcc9 DH |
1353 | if (rel_y > 0) |
1354 | scancode = 0x01007f00; /* KEY_DOWN */ | |
1355 | else | |
1356 | scancode = 0x01008000; /* KEY_UP */ | |
21677cfc JW |
1357 | } else { |
1358 | buf[2] = 0; | |
1359 | buf[3] = (rel_x > 0) ? 0x7F : 0x80; | |
eaf2bcc9 DH |
1360 | if (rel_x > 0) |
1361 | scancode = 0x0100007f; /* KEY_RIGHT */ | |
1362 | else | |
1363 | scancode = 0x01000080; /* KEY_LEFT */ | |
21677cfc JW |
1364 | } |
1365 | } | |
1366 | ||
1367 | /* | |
1368 | * Handle on-board decoded pad events for e.g. older VFD/iMON-Pad | |
1369 | * device (15c2:ffdc). The remote generates various codes from | |
1370 | * 0x68nnnnB7 to 0x6AnnnnB7, the left mouse button generates | |
1371 | * 0x688301b7 and the right one 0x688481b7. All other keys generate | |
1372 | * 0x2nnnnnnn. Position coordinate is encoded in buf[1] and buf[2] with | |
1373 | * reversed endianess. Extract direction from buffer, rotate endianess, | |
1374 | * adjust sign and feed the values into stabilize(). The resulting codes | |
1375 | * will be 0x01008000, 0x01007F00, which match the newer devices. | |
1376 | */ | |
1377 | } else { | |
1378 | timeout = 10; /* in msecs */ | |
1379 | /* (2*threshold) x (2*threshold) square */ | |
1380 | threshold = pad_thresh ? pad_thresh : 15; | |
1381 | ||
1382 | /* buf[1] is x */ | |
1383 | rel_x = (buf[1] & 0x08) | (buf[1] & 0x10) >> 2 | | |
1384 | (buf[1] & 0x20) >> 4 | (buf[1] & 0x40) >> 6; | |
1385 | if (buf[0] & 0x02) | |
1386 | rel_x |= ~0x10+1; | |
1387 | /* buf[2] is y */ | |
1388 | rel_y = (buf[2] & 0x08) | (buf[2] & 0x10) >> 2 | | |
1389 | (buf[2] & 0x20) >> 4 | (buf[2] & 0x40) >> 6; | |
1390 | if (buf[0] & 0x01) | |
1391 | rel_y |= ~0x10+1; | |
1392 | ||
1393 | buf[0] = 0x01; | |
1394 | buf[1] = buf[4] = buf[5] = buf[6] = buf[7] = 0; | |
1395 | ||
c003ab1b | 1396 | if (ictx->rc_type == RC_BIT_OTHER && pad_stabilize) { |
21677cfc JW |
1397 | dir = stabilize((int)rel_x, (int)rel_y, |
1398 | timeout, threshold); | |
1399 | if (!dir) { | |
693508df | 1400 | spin_lock_irqsave(&ictx->kc_lock, flags); |
21677cfc | 1401 | ictx->kc = KEY_UNKNOWN; |
693508df | 1402 | spin_unlock_irqrestore(&ictx->kc_lock, flags); |
21677cfc JW |
1403 | return; |
1404 | } | |
1405 | buf[2] = dir & 0xFF; | |
1406 | buf[3] = (dir >> 8) & 0xFF; | |
eaf2bcc9 | 1407 | scancode = be32_to_cpu(*((u32 *)buf)); |
21677cfc | 1408 | } else { |
eaf2bcc9 DH |
1409 | /* |
1410 | * Hack alert: instead of using keycodes, we have | |
1411 | * to use hard-coded scancodes here... | |
1412 | */ | |
21677cfc JW |
1413 | if (abs(rel_y) > abs(rel_x)) { |
1414 | buf[2] = (rel_y > 0) ? 0x7F : 0x80; | |
1415 | buf[3] = 0; | |
eaf2bcc9 DH |
1416 | if (rel_y > 0) |
1417 | scancode = 0x01007f00; /* KEY_DOWN */ | |
1418 | else | |
1419 | scancode = 0x01008000; /* KEY_UP */ | |
21677cfc JW |
1420 | } else { |
1421 | buf[2] = 0; | |
1422 | buf[3] = (rel_x > 0) ? 0x7F : 0x80; | |
eaf2bcc9 DH |
1423 | if (rel_x > 0) |
1424 | scancode = 0x0100007f; /* KEY_RIGHT */ | |
1425 | else | |
1426 | scancode = 0x01000080; /* KEY_LEFT */ | |
21677cfc JW |
1427 | } |
1428 | } | |
1429 | } | |
eaf2bcc9 | 1430 | |
693508df JW |
1431 | if (scancode) { |
1432 | spin_lock_irqsave(&ictx->kc_lock, flags); | |
eaf2bcc9 | 1433 | ictx->kc = imon_remote_key_lookup(ictx, scancode); |
693508df JW |
1434 | spin_unlock_irqrestore(&ictx->kc_lock, flags); |
1435 | } | |
21677cfc JW |
1436 | } |
1437 | ||
eaf2bcc9 DH |
1438 | /** |
1439 | * figure out if these is a press or a release. We don't actually | |
1440 | * care about repeats, as those will be auto-generated within the IR | |
1441 | * subsystem for repeating scancodes. | |
1442 | */ | |
21677cfc JW |
1443 | static int imon_parse_press_type(struct imon_context *ictx, |
1444 | unsigned char *buf, u8 ktype) | |
1445 | { | |
1446 | int press_type = 0; | |
693508df JW |
1447 | unsigned long flags; |
1448 | ||
1449 | spin_lock_irqsave(&ictx->kc_lock, flags); | |
21677cfc JW |
1450 | |
1451 | /* key release of 0x02XXXXXX key */ | |
1452 | if (ictx->kc == KEY_RESERVED && buf[0] == 0x02 && buf[3] == 0x00) | |
1453 | ictx->kc = ictx->last_keycode; | |
1454 | ||
1455 | /* mouse button release on (some) 0xffdc devices */ | |
1456 | else if (ictx->kc == KEY_RESERVED && buf[0] == 0x68 && buf[1] == 0x82 && | |
1457 | buf[2] == 0x81 && buf[3] == 0xb7) | |
1458 | ictx->kc = ictx->last_keycode; | |
1459 | ||
1460 | /* mouse button release on (some other) 0xffdc devices */ | |
1461 | else if (ictx->kc == KEY_RESERVED && buf[0] == 0x01 && buf[1] == 0x00 && | |
1462 | buf[2] == 0x81 && buf[3] == 0xb7) | |
1463 | ictx->kc = ictx->last_keycode; | |
1464 | ||
eaf2bcc9 | 1465 | /* mce-specific button handling, no keyup events */ |
21677cfc | 1466 | else if (ktype == IMON_KEY_MCE) { |
eaf2bcc9 DH |
1467 | ictx->rc_toggle = buf[2]; |
1468 | press_type = 1; | |
21677cfc JW |
1469 | |
1470 | /* incoherent or irrelevant data */ | |
1471 | } else if (ictx->kc == KEY_RESERVED) | |
1472 | press_type = -EINVAL; | |
1473 | ||
1474 | /* key release of 0xXXXXXXb7 key */ | |
1475 | else if (ictx->release_code) | |
1476 | press_type = 0; | |
1477 | ||
1478 | /* this is a button press */ | |
1479 | else | |
1480 | press_type = 1; | |
1481 | ||
693508df JW |
1482 | spin_unlock_irqrestore(&ictx->kc_lock, flags); |
1483 | ||
21677cfc JW |
1484 | return press_type; |
1485 | } | |
1486 | ||
1487 | /** | |
1488 | * Process the incoming packet | |
1489 | */ | |
1490 | static void imon_incoming_packet(struct imon_context *ictx, | |
1491 | struct urb *urb, int intf) | |
1492 | { | |
1493 | int len = urb->actual_length; | |
1494 | unsigned char *buf = urb->transfer_buffer; | |
1495 | struct device *dev = ictx->dev; | |
693508df | 1496 | unsigned long flags; |
21677cfc | 1497 | u32 kc; |
21677cfc | 1498 | int i; |
eaf2bcc9 | 1499 | u64 scancode; |
21677cfc JW |
1500 | int press_type = 0; |
1501 | int msec; | |
1502 | struct timeval t; | |
1503 | static struct timeval prev_time = { 0, 0 }; | |
eaf2bcc9 | 1504 | u8 ktype; |
21677cfc | 1505 | |
21677cfc | 1506 | /* filter out junk data on the older 0xffdc imon devices */ |
bbe4690f | 1507 | if ((buf[0] == 0xff) && (buf[1] == 0xff) && (buf[2] == 0xff)) |
21677cfc JW |
1508 | return; |
1509 | ||
1510 | /* Figure out what key was pressed */ | |
21677cfc | 1511 | if (len == 8 && buf[7] == 0xee) { |
eaf2bcc9 | 1512 | scancode = be64_to_cpu(*((u64 *)buf)); |
21677cfc | 1513 | ktype = IMON_KEY_PANEL; |
eaf2bcc9 | 1514 | kc = imon_panel_key_lookup(scancode); |
21677cfc | 1515 | } else { |
eaf2bcc9 | 1516 | scancode = be32_to_cpu(*((u32 *)buf)); |
c003ab1b | 1517 | if (ictx->rc_type == RC_BIT_RC6_MCE) { |
eaf2bcc9 | 1518 | ktype = IMON_KEY_IMON; |
21677cfc JW |
1519 | if (buf[0] == 0x80) |
1520 | ktype = IMON_KEY_MCE; | |
eaf2bcc9 DH |
1521 | kc = imon_mce_key_lookup(ictx, scancode); |
1522 | } else { | |
1523 | ktype = IMON_KEY_IMON; | |
1524 | kc = imon_remote_key_lookup(ictx, scancode); | |
1525 | } | |
21677cfc JW |
1526 | } |
1527 | ||
693508df | 1528 | spin_lock_irqsave(&ictx->kc_lock, flags); |
21677cfc JW |
1529 | /* keyboard/mouse mode toggle button */ |
1530 | if (kc == KEY_KEYBOARD && !ictx->release_code) { | |
1531 | ictx->last_keycode = kc; | |
1532 | if (!nomouse) { | |
ad087167 | 1533 | ictx->pad_mouse = !ictx->pad_mouse; |
21677cfc JW |
1534 | dev_dbg(dev, "toggling to %s mode\n", |
1535 | ictx->pad_mouse ? "mouse" : "keyboard"); | |
693508df | 1536 | spin_unlock_irqrestore(&ictx->kc_lock, flags); |
21677cfc JW |
1537 | return; |
1538 | } else { | |
76f1ef42 | 1539 | ictx->pad_mouse = false; |
21677cfc JW |
1540 | dev_dbg(dev, "mouse mode disabled, passing key value\n"); |
1541 | } | |
1542 | } | |
1543 | ||
1544 | ictx->kc = kc; | |
693508df | 1545 | spin_unlock_irqrestore(&ictx->kc_lock, flags); |
21677cfc JW |
1546 | |
1547 | /* send touchscreen events through input subsystem if touchpad data */ | |
1548 | if (ictx->display_type == IMON_DISPLAY_TYPE_VGA && len == 8 && | |
1549 | buf[7] == 0x86) { | |
1550 | imon_touch_event(ictx, buf); | |
eaf2bcc9 | 1551 | return; |
21677cfc JW |
1552 | |
1553 | /* look for mouse events with pad in mouse mode */ | |
1554 | } else if (ictx->pad_mouse) { | |
1555 | if (imon_mouse_event(ictx, buf, len)) | |
1556 | return; | |
1557 | } | |
1558 | ||
1559 | /* Now for some special handling to convert pad input to arrow keys */ | |
1560 | if (((len == 5) && (buf[0] == 0x01) && (buf[4] == 0x00)) || | |
1561 | ((len == 8) && (buf[0] & 0x40) && | |
1562 | !(buf[1] & 0x1 || buf[1] >> 2 & 0x1))) { | |
1563 | len = 8; | |
1564 | imon_pad_to_keys(ictx, buf); | |
21677cfc JW |
1565 | } |
1566 | ||
1567 | if (debug) { | |
1568 | printk(KERN_INFO "intf%d decoded packet: ", intf); | |
1569 | for (i = 0; i < len; ++i) | |
1570 | printk("%02x ", buf[i]); | |
1571 | printk("\n"); | |
1572 | } | |
1573 | ||
1574 | press_type = imon_parse_press_type(ictx, buf, ktype); | |
1575 | if (press_type < 0) | |
1576 | goto not_input_data; | |
1577 | ||
eaf2bcc9 DH |
1578 | if (ktype != IMON_KEY_PANEL) { |
1579 | if (press_type == 0) | |
ca86674b | 1580 | rc_keyup(ictx->rdev); |
eaf2bcc9 | 1581 | else { |
ca86674b | 1582 | rc_keydown(ictx->rdev, ictx->rc_scancode, ictx->rc_toggle); |
693508df | 1583 | spin_lock_irqsave(&ictx->kc_lock, flags); |
eaf2bcc9 | 1584 | ictx->last_keycode = ictx->kc; |
693508df | 1585 | spin_unlock_irqrestore(&ictx->kc_lock, flags); |
eaf2bcc9 DH |
1586 | } |
1587 | return; | |
1588 | } | |
21677cfc | 1589 | |
eaf2bcc9 | 1590 | /* Only panel type events left to process now */ |
693508df JW |
1591 | spin_lock_irqsave(&ictx->kc_lock, flags); |
1592 | ||
94215ccd | 1593 | do_gettimeofday(&t); |
eaf2bcc9 DH |
1594 | /* KEY_MUTE repeats from knob need to be suppressed */ |
1595 | if (ictx->kc == KEY_MUTE && ictx->kc == ictx->last_keycode) { | |
21677cfc | 1596 | msec = tv2int(&t, &prev_time); |
428cc763 | 1597 | if (msec < ictx->idev->rep[REP_DELAY]) { |
693508df | 1598 | spin_unlock_irqrestore(&ictx->kc_lock, flags); |
21677cfc | 1599 | return; |
693508df | 1600 | } |
21677cfc | 1601 | } |
94215ccd | 1602 | prev_time = t; |
693508df | 1603 | kc = ictx->kc; |
21677cfc | 1604 | |
693508df | 1605 | spin_unlock_irqrestore(&ictx->kc_lock, flags); |
21677cfc | 1606 | |
428cc763 JW |
1607 | input_report_key(ictx->idev, kc, press_type); |
1608 | input_sync(ictx->idev); | |
21677cfc | 1609 | |
eaf2bcc9 | 1610 | /* panel keys don't generate a release */ |
428cc763 JW |
1611 | input_report_key(ictx->idev, kc, 0); |
1612 | input_sync(ictx->idev); | |
21677cfc | 1613 | |
94215ccd | 1614 | spin_lock_irqsave(&ictx->kc_lock, flags); |
693508df | 1615 | ictx->last_keycode = kc; |
94215ccd | 1616 | spin_unlock_irqrestore(&ictx->kc_lock, flags); |
21677cfc JW |
1617 | |
1618 | return; | |
1619 | ||
21677cfc JW |
1620 | not_input_data: |
1621 | if (len != 8) { | |
1622 | dev_warn(dev, "imon %s: invalid incoming packet " | |
1623 | "size (len = %d, intf%d)\n", __func__, len, intf); | |
1624 | return; | |
1625 | } | |
1626 | ||
1627 | /* iMON 2.4G associate frame */ | |
1628 | if (buf[0] == 0x00 && | |
1629 | buf[2] == 0xFF && /* REFID */ | |
1630 | buf[3] == 0xFF && | |
1631 | buf[4] == 0xFF && | |
1632 | buf[5] == 0xFF && /* iMON 2.4G */ | |
1633 | ((buf[6] == 0x4E && buf[7] == 0xDF) || /* LT */ | |
1634 | (buf[6] == 0x5E && buf[7] == 0xDF))) { /* DT */ | |
1635 | dev_warn(dev, "%s: remote associated refid=%02X\n", | |
1636 | __func__, buf[1]); | |
f789bf40 | 1637 | ictx->rf_isassociating = false; |
21677cfc JW |
1638 | } |
1639 | } | |
1640 | ||
1641 | /** | |
1642 | * Callback function for USB core API: receive data | |
1643 | */ | |
1644 | static void usb_rx_callback_intf0(struct urb *urb) | |
1645 | { | |
1646 | struct imon_context *ictx; | |
1647 | int intfnum = 0; | |
1648 | ||
1649 | if (!urb) | |
1650 | return; | |
1651 | ||
1652 | ictx = (struct imon_context *)urb->context; | |
8791d63a | 1653 | if (!ictx) |
21677cfc JW |
1654 | return; |
1655 | ||
8791d63a JW |
1656 | /* |
1657 | * if we get a callback before we're done configuring the hardware, we | |
1658 | * can't yet process the data, as there's nowhere to send it, but we | |
1659 | * still need to submit a new rx URB to avoid wedging the hardware | |
1660 | */ | |
1661 | if (!ictx->dev_present_intf0) | |
1662 | goto out; | |
1663 | ||
21677cfc JW |
1664 | switch (urb->status) { |
1665 | case -ENOENT: /* usbcore unlink successful! */ | |
1666 | return; | |
1667 | ||
1668 | case -ESHUTDOWN: /* transport endpoint was shut down */ | |
1669 | break; | |
1670 | ||
1671 | case 0: | |
1672 | imon_incoming_packet(ictx, urb, intfnum); | |
1673 | break; | |
1674 | ||
1675 | default: | |
1676 | dev_warn(ictx->dev, "imon %s: status(%d): ignored\n", | |
1677 | __func__, urb->status); | |
1678 | break; | |
1679 | } | |
1680 | ||
8791d63a | 1681 | out: |
21677cfc JW |
1682 | usb_submit_urb(ictx->rx_urb_intf0, GFP_ATOMIC); |
1683 | } | |
1684 | ||
1685 | static void usb_rx_callback_intf1(struct urb *urb) | |
1686 | { | |
1687 | struct imon_context *ictx; | |
1688 | int intfnum = 1; | |
1689 | ||
1690 | if (!urb) | |
1691 | return; | |
1692 | ||
1693 | ictx = (struct imon_context *)urb->context; | |
8791d63a | 1694 | if (!ictx) |
21677cfc JW |
1695 | return; |
1696 | ||
8791d63a JW |
1697 | /* |
1698 | * if we get a callback before we're done configuring the hardware, we | |
1699 | * can't yet process the data, as there's nowhere to send it, but we | |
1700 | * still need to submit a new rx URB to avoid wedging the hardware | |
1701 | */ | |
1702 | if (!ictx->dev_present_intf1) | |
1703 | goto out; | |
1704 | ||
21677cfc JW |
1705 | switch (urb->status) { |
1706 | case -ENOENT: /* usbcore unlink successful! */ | |
1707 | return; | |
1708 | ||
1709 | case -ESHUTDOWN: /* transport endpoint was shut down */ | |
1710 | break; | |
1711 | ||
1712 | case 0: | |
1713 | imon_incoming_packet(ictx, urb, intfnum); | |
1714 | break; | |
1715 | ||
1716 | default: | |
1717 | dev_warn(ictx->dev, "imon %s: status(%d): ignored\n", | |
1718 | __func__, urb->status); | |
1719 | break; | |
1720 | } | |
1721 | ||
8791d63a | 1722 | out: |
21677cfc JW |
1723 | usb_submit_urb(ictx->rx_urb_intf1, GFP_ATOMIC); |
1724 | } | |
1725 | ||
04292fc0 JW |
1726 | /* |
1727 | * The 0x15c2:0xffdc device ID was used for umpteen different imon | |
1728 | * devices, and all of them constantly spew interrupts, even when there | |
1729 | * is no actual data to report. However, byte 6 of this buffer looks like | |
1730 | * its unique across device variants, so we're trying to key off that to | |
1731 | * figure out which display type (if any) and what IR protocol the device | |
1732 | * actually supports. These devices have their IR protocol hard-coded into | |
1733 | * their firmware, they can't be changed on the fly like the newer hardware. | |
1734 | */ | |
1735 | static void imon_get_ffdc_type(struct imon_context *ictx) | |
1736 | { | |
1737 | u8 ffdc_cfg_byte = ictx->usb_rx_buf[6]; | |
1738 | u8 detected_display_type = IMON_DISPLAY_TYPE_NONE; | |
c003ab1b | 1739 | u64 allowed_protos = RC_BIT_OTHER; |
04292fc0 JW |
1740 | |
1741 | switch (ffdc_cfg_byte) { | |
1742 | /* iMON Knob, no display, iMON IR + vol knob */ | |
1743 | case 0x21: | |
1744 | dev_info(ictx->dev, "0xffdc iMON Knob, iMON IR"); | |
1745 | ictx->display_supported = false; | |
1746 | break; | |
1747 | /* iMON 2.4G LT (usb stick), no display, iMON RF */ | |
1748 | case 0x4e: | |
1749 | dev_info(ictx->dev, "0xffdc iMON 2.4G LT, iMON RF"); | |
1750 | ictx->display_supported = false; | |
1751 | ictx->rf_device = true; | |
1752 | break; | |
1753 | /* iMON VFD, no IR (does have vol knob tho) */ | |
1754 | case 0x35: | |
1755 | dev_info(ictx->dev, "0xffdc iMON VFD + knob, no IR"); | |
1756 | detected_display_type = IMON_DISPLAY_TYPE_VFD; | |
1757 | break; | |
1758 | /* iMON VFD, iMON IR */ | |
1759 | case 0x24: | |
1760 | case 0x85: | |
1761 | dev_info(ictx->dev, "0xffdc iMON VFD, iMON IR"); | |
1762 | detected_display_type = IMON_DISPLAY_TYPE_VFD; | |
1763 | break; | |
1764 | /* iMON VFD, MCE IR */ | |
443b3919 | 1765 | case 0x46: |
842071c9 | 1766 | case 0x7e: |
04292fc0 JW |
1767 | case 0x9e: |
1768 | dev_info(ictx->dev, "0xffdc iMON VFD, MCE IR"); | |
1769 | detected_display_type = IMON_DISPLAY_TYPE_VFD; | |
c003ab1b | 1770 | allowed_protos = RC_BIT_RC6_MCE; |
04292fc0 JW |
1771 | break; |
1772 | /* iMON LCD, MCE IR */ | |
1773 | case 0x9f: | |
1774 | dev_info(ictx->dev, "0xffdc iMON LCD, MCE IR"); | |
1775 | detected_display_type = IMON_DISPLAY_TYPE_LCD; | |
c003ab1b | 1776 | allowed_protos = RC_BIT_RC6_MCE; |
04292fc0 JW |
1777 | break; |
1778 | default: | |
1779 | dev_info(ictx->dev, "Unknown 0xffdc device, " | |
1780 | "defaulting to VFD and iMON IR"); | |
1781 | detected_display_type = IMON_DISPLAY_TYPE_VFD; | |
372b4249 JW |
1782 | /* We don't know which one it is, allow user to set the |
1783 | * RC6 one from userspace if OTHER wasn't correct. */ | |
c003ab1b | 1784 | allowed_protos |= RC_BIT_RC6_MCE; |
04292fc0 JW |
1785 | break; |
1786 | } | |
1787 | ||
1788 | printk(KERN_CONT " (id 0x%02x)\n", ffdc_cfg_byte); | |
1789 | ||
1790 | ictx->display_type = detected_display_type; | |
52b66144 | 1791 | ictx->rc_type = allowed_protos; |
04292fc0 JW |
1792 | } |
1793 | ||
1794 | static void imon_set_display_type(struct imon_context *ictx) | |
1795 | { | |
1796 | u8 configured_display_type = IMON_DISPLAY_TYPE_VFD; | |
1797 | ||
1798 | /* | |
1799 | * Try to auto-detect the type of display if the user hasn't set | |
1800 | * it by hand via the display_type modparam. Default is VFD. | |
1801 | */ | |
1802 | ||
1803 | if (display_type == IMON_DISPLAY_TYPE_AUTO) { | |
1804 | switch (ictx->product) { | |
1805 | case 0xffdc: | |
1806 | /* set in imon_get_ffdc_type() */ | |
1807 | configured_display_type = ictx->display_type; | |
1808 | break; | |
1809 | case 0x0034: | |
1810 | case 0x0035: | |
1811 | configured_display_type = IMON_DISPLAY_TYPE_VGA; | |
1812 | break; | |
1813 | case 0x0038: | |
1814 | case 0x0039: | |
1815 | case 0x0045: | |
1816 | configured_display_type = IMON_DISPLAY_TYPE_LCD; | |
1817 | break; | |
1818 | case 0x003c: | |
1819 | case 0x0041: | |
1820 | case 0x0042: | |
1821 | case 0x0043: | |
1822 | configured_display_type = IMON_DISPLAY_TYPE_NONE; | |
1823 | ictx->display_supported = false; | |
1824 | break; | |
1825 | case 0x0036: | |
1826 | case 0x0044: | |
1827 | default: | |
1828 | configured_display_type = IMON_DISPLAY_TYPE_VFD; | |
1829 | break; | |
1830 | } | |
1831 | } else { | |
1832 | configured_display_type = display_type; | |
1833 | if (display_type == IMON_DISPLAY_TYPE_NONE) | |
1834 | ictx->display_supported = false; | |
1835 | else | |
1836 | ictx->display_supported = true; | |
1837 | dev_info(ictx->dev, "%s: overriding display type to %d via " | |
1838 | "modparam\n", __func__, display_type); | |
1839 | } | |
1840 | ||
1841 | ictx->display_type = configured_display_type; | |
1842 | } | |
1843 | ||
d8b4b582 | 1844 | static struct rc_dev *imon_init_rdev(struct imon_context *ictx) |
eaf2bcc9 | 1845 | { |
d8b4b582 | 1846 | struct rc_dev *rdev; |
eaf2bcc9 | 1847 | int ret; |
04292fc0 JW |
1848 | const unsigned char fp_packet[] = { 0x40, 0x00, 0x00, 0x00, |
1849 | 0x00, 0x00, 0x00, 0x88 }; | |
eaf2bcc9 | 1850 | |
d8b4b582 DH |
1851 | rdev = rc_allocate_device(); |
1852 | if (!rdev) { | |
eaf2bcc9 DH |
1853 | dev_err(ictx->dev, "remote control dev allocation failed\n"); |
1854 | goto out; | |
1855 | } | |
1856 | ||
1857 | snprintf(ictx->name_rdev, sizeof(ictx->name_rdev), | |
1858 | "iMON Remote (%04x:%04x)", ictx->vendor, ictx->product); | |
1859 | usb_make_path(ictx->usbdev_intf0, ictx->phys_rdev, | |
1860 | sizeof(ictx->phys_rdev)); | |
1861 | strlcat(ictx->phys_rdev, "/input0", sizeof(ictx->phys_rdev)); | |
1862 | ||
d8b4b582 DH |
1863 | rdev->input_name = ictx->name_rdev; |
1864 | rdev->input_phys = ictx->phys_rdev; | |
1865 | usb_to_input_id(ictx->usbdev_intf0, &rdev->input_id); | |
eaf2bcc9 | 1866 | rdev->dev.parent = ictx->dev; |
eaf2bcc9 | 1867 | |
d8b4b582 DH |
1868 | rdev->priv = ictx; |
1869 | rdev->driver_type = RC_DRIVER_SCANCODE; | |
c003ab1b | 1870 | rdev->allowed_protos = RC_BIT_OTHER | RC_BIT_RC6_MCE; /* iMON PAD or MCE */ |
d8b4b582 DH |
1871 | rdev->change_protocol = imon_ir_change_protocol; |
1872 | rdev->driver_name = MOD_NAME; | |
eaf2bcc9 | 1873 | |
04292fc0 JW |
1874 | /* Enable front-panel buttons and/or knobs */ |
1875 | memcpy(ictx->usb_tx_buf, &fp_packet, sizeof(fp_packet)); | |
1876 | ret = send_packet(ictx); | |
1877 | /* Not fatal, but warn about it */ | |
1878 | if (ret) | |
1879 | dev_info(ictx->dev, "panel buttons/knobs setup failed\n"); | |
1880 | ||
7d2edfc2 | 1881 | if (ictx->product == 0xffdc) { |
04292fc0 | 1882 | imon_get_ffdc_type(ictx); |
7d2edfc2 JW |
1883 | rdev->allowed_protos = ictx->rc_type; |
1884 | } | |
04292fc0 JW |
1885 | |
1886 | imon_set_display_type(ictx); | |
1887 | ||
c003ab1b | 1888 | if (ictx->rc_type == RC_BIT_RC6_MCE) |
7d2edfc2 JW |
1889 | rdev->map_name = RC_MAP_IMON_MCE; |
1890 | else | |
1891 | rdev->map_name = RC_MAP_IMON_PAD; | |
1892 | ||
d8b4b582 | 1893 | ret = rc_register_device(rdev); |
eaf2bcc9 DH |
1894 | if (ret < 0) { |
1895 | dev_err(ictx->dev, "remote input dev register failed\n"); | |
1896 | goto out; | |
1897 | } | |
1898 | ||
1899 | return rdev; | |
1900 | ||
1901 | out: | |
d8b4b582 | 1902 | rc_free_device(rdev); |
eaf2bcc9 DH |
1903 | return NULL; |
1904 | } | |
1905 | ||
21677cfc JW |
1906 | static struct input_dev *imon_init_idev(struct imon_context *ictx) |
1907 | { | |
1908 | struct input_dev *idev; | |
21677cfc | 1909 | int ret, i; |
21677cfc JW |
1910 | |
1911 | idev = input_allocate_device(); | |
1912 | if (!idev) { | |
eaf2bcc9 DH |
1913 | dev_err(ictx->dev, "input dev allocation failed\n"); |
1914 | goto out; | |
21677cfc JW |
1915 | } |
1916 | ||
21677cfc | 1917 | snprintf(ictx->name_idev, sizeof(ictx->name_idev), |
eaf2bcc9 DH |
1918 | "iMON Panel, Knob and Mouse(%04x:%04x)", |
1919 | ictx->vendor, ictx->product); | |
21677cfc JW |
1920 | idev->name = ictx->name_idev; |
1921 | ||
1922 | usb_make_path(ictx->usbdev_intf0, ictx->phys_idev, | |
1923 | sizeof(ictx->phys_idev)); | |
eaf2bcc9 | 1924 | strlcat(ictx->phys_idev, "/input1", sizeof(ictx->phys_idev)); |
21677cfc JW |
1925 | idev->phys = ictx->phys_idev; |
1926 | ||
db190fc1 | 1927 | idev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP) | BIT_MASK(EV_REL); |
21677cfc JW |
1928 | |
1929 | idev->keybit[BIT_WORD(BTN_MOUSE)] = | |
1930 | BIT_MASK(BTN_LEFT) | BIT_MASK(BTN_RIGHT); | |
1931 | idev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y) | | |
1932 | BIT_MASK(REL_WHEEL); | |
1933 | ||
1934 | /* panel and/or knob code support */ | |
1935 | for (i = 0; i < ARRAY_SIZE(imon_panel_key_table); i++) { | |
1936 | u32 kc = imon_panel_key_table[i].keycode; | |
1937 | __set_bit(kc, idev->keybit); | |
1938 | } | |
1939 | ||
21677cfc JW |
1940 | usb_to_input_id(ictx->usbdev_intf0, &idev->id); |
1941 | idev->dev.parent = ictx->dev; | |
eaf2bcc9 | 1942 | input_set_drvdata(idev, ictx); |
21677cfc | 1943 | |
eaf2bcc9 | 1944 | ret = input_register_device(idev); |
21677cfc | 1945 | if (ret < 0) { |
eaf2bcc9 DH |
1946 | dev_err(ictx->dev, "input dev register failed\n"); |
1947 | goto out; | |
21677cfc JW |
1948 | } |
1949 | ||
1950 | return idev; | |
1951 | ||
eaf2bcc9 | 1952 | out: |
21677cfc | 1953 | input_free_device(idev); |
21677cfc JW |
1954 | return NULL; |
1955 | } | |
1956 | ||
1957 | static struct input_dev *imon_init_touch(struct imon_context *ictx) | |
1958 | { | |
1959 | struct input_dev *touch; | |
1960 | int ret; | |
1961 | ||
1962 | touch = input_allocate_device(); | |
1963 | if (!touch) { | |
1964 | dev_err(ictx->dev, "touchscreen input dev allocation failed\n"); | |
1965 | goto touch_alloc_failed; | |
1966 | } | |
1967 | ||
1968 | snprintf(ictx->name_touch, sizeof(ictx->name_touch), | |
1969 | "iMON USB Touchscreen (%04x:%04x)", | |
1970 | ictx->vendor, ictx->product); | |
1971 | touch->name = ictx->name_touch; | |
1972 | ||
1973 | usb_make_path(ictx->usbdev_intf1, ictx->phys_touch, | |
1974 | sizeof(ictx->phys_touch)); | |
eaf2bcc9 | 1975 | strlcat(ictx->phys_touch, "/input2", sizeof(ictx->phys_touch)); |
21677cfc JW |
1976 | touch->phys = ictx->phys_touch; |
1977 | ||
1978 | touch->evbit[0] = | |
1979 | BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS); | |
1980 | touch->keybit[BIT_WORD(BTN_TOUCH)] = | |
1981 | BIT_MASK(BTN_TOUCH); | |
1982 | input_set_abs_params(touch, ABS_X, | |
1983 | 0x00, 0xfff, 0, 0); | |
1984 | input_set_abs_params(touch, ABS_Y, | |
1985 | 0x00, 0xfff, 0, 0); | |
1986 | ||
1987 | input_set_drvdata(touch, ictx); | |
1988 | ||
1989 | usb_to_input_id(ictx->usbdev_intf1, &touch->id); | |
1990 | touch->dev.parent = ictx->dev; | |
1991 | ret = input_register_device(touch); | |
1992 | if (ret < 0) { | |
1993 | dev_info(ictx->dev, "touchscreen input dev register failed\n"); | |
1994 | goto touch_register_failed; | |
1995 | } | |
1996 | ||
1997 | return touch; | |
1998 | ||
1999 | touch_register_failed: | |
aeb35ebc | 2000 | input_free_device(touch); |
21677cfc JW |
2001 | |
2002 | touch_alloc_failed: | |
2003 | return NULL; | |
2004 | } | |
2005 | ||
2006 | static bool imon_find_endpoints(struct imon_context *ictx, | |
2007 | struct usb_host_interface *iface_desc) | |
2008 | { | |
2009 | struct usb_endpoint_descriptor *ep; | |
2010 | struct usb_endpoint_descriptor *rx_endpoint = NULL; | |
2011 | struct usb_endpoint_descriptor *tx_endpoint = NULL; | |
2012 | int ifnum = iface_desc->desc.bInterfaceNumber; | |
2013 | int num_endpts = iface_desc->desc.bNumEndpoints; | |
2014 | int i, ep_dir, ep_type; | |
f789bf40 JW |
2015 | bool ir_ep_found = false; |
2016 | bool display_ep_found = false; | |
2017 | bool tx_control = false; | |
21677cfc JW |
2018 | |
2019 | /* | |
2020 | * Scan the endpoint list and set: | |
2021 | * first input endpoint = IR endpoint | |
2022 | * first output endpoint = display endpoint | |
2023 | */ | |
2024 | for (i = 0; i < num_endpts && !(ir_ep_found && display_ep_found); ++i) { | |
2025 | ep = &iface_desc->endpoint[i].desc; | |
2026 | ep_dir = ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK; | |
2027 | ep_type = ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK; | |
2028 | ||
2029 | if (!ir_ep_found && ep_dir == USB_DIR_IN && | |
2030 | ep_type == USB_ENDPOINT_XFER_INT) { | |
2031 | ||
2032 | rx_endpoint = ep; | |
f789bf40 | 2033 | ir_ep_found = true; |
21677cfc JW |
2034 | dev_dbg(ictx->dev, "%s: found IR endpoint\n", __func__); |
2035 | ||
2036 | } else if (!display_ep_found && ep_dir == USB_DIR_OUT && | |
2037 | ep_type == USB_ENDPOINT_XFER_INT) { | |
2038 | tx_endpoint = ep; | |
f789bf40 | 2039 | display_ep_found = true; |
21677cfc JW |
2040 | dev_dbg(ictx->dev, "%s: found display endpoint\n", __func__); |
2041 | } | |
2042 | } | |
2043 | ||
2044 | if (ifnum == 0) { | |
2045 | ictx->rx_endpoint_intf0 = rx_endpoint; | |
2046 | /* | |
2047 | * tx is used to send characters to lcd/vfd, associate RF | |
2048 | * remotes, set IR protocol, and maybe more... | |
2049 | */ | |
2050 | ictx->tx_endpoint = tx_endpoint; | |
2051 | } else { | |
2052 | ictx->rx_endpoint_intf1 = rx_endpoint; | |
2053 | } | |
2054 | ||
2055 | /* | |
2056 | * If we didn't find a display endpoint, this is probably one of the | |
2057 | * newer iMON devices that use control urb instead of interrupt | |
2058 | */ | |
2059 | if (!display_ep_found) { | |
f789bf40 JW |
2060 | tx_control = true; |
2061 | display_ep_found = true; | |
21677cfc JW |
2062 | dev_dbg(ictx->dev, "%s: device uses control endpoint, not " |
2063 | "interface OUT endpoint\n", __func__); | |
2064 | } | |
2065 | ||
2066 | /* | |
2067 | * Some iMON receivers have no display. Unfortunately, it seems | |
2068 | * that SoundGraph recycles device IDs between devices both with | |
2069 | * and without... :\ | |
2070 | */ | |
2071 | if (ictx->display_type == IMON_DISPLAY_TYPE_NONE) { | |
f789bf40 | 2072 | display_ep_found = false; |
21677cfc JW |
2073 | dev_dbg(ictx->dev, "%s: device has no display\n", __func__); |
2074 | } | |
2075 | ||
2076 | /* | |
2077 | * iMON Touch devices have a VGA touchscreen, but no "display", as | |
2078 | * that refers to e.g. /dev/lcd0 (a character device LCD or VFD). | |
2079 | */ | |
2080 | if (ictx->display_type == IMON_DISPLAY_TYPE_VGA) { | |
f789bf40 | 2081 | display_ep_found = false; |
21677cfc JW |
2082 | dev_dbg(ictx->dev, "%s: iMON Touch device found\n", __func__); |
2083 | } | |
2084 | ||
2085 | /* Input endpoint is mandatory */ | |
2086 | if (!ir_ep_found) | |
e2302501 | 2087 | pr_err("no valid input (IR) endpoint found\n"); |
21677cfc JW |
2088 | |
2089 | ictx->tx_control = tx_control; | |
2090 | ||
2091 | if (display_ep_found) | |
2092 | ictx->display_supported = true; | |
2093 | ||
2094 | return ir_ep_found; | |
2095 | ||
2096 | } | |
2097 | ||
f7d141b3 KB |
2098 | static struct imon_context *imon_init_intf0(struct usb_interface *intf, |
2099 | const struct usb_device_id *id) | |
21677cfc JW |
2100 | { |
2101 | struct imon_context *ictx; | |
2102 | struct urb *rx_urb; | |
2103 | struct urb *tx_urb; | |
2104 | struct device *dev = &intf->dev; | |
2105 | struct usb_host_interface *iface_desc; | |
1f71baef | 2106 | int ret = -ENOMEM; |
21677cfc JW |
2107 | |
2108 | ictx = kzalloc(sizeof(struct imon_context), GFP_KERNEL); | |
2109 | if (!ictx) { | |
2110 | dev_err(dev, "%s: kzalloc failed for context", __func__); | |
2111 | goto exit; | |
2112 | } | |
2113 | rx_urb = usb_alloc_urb(0, GFP_KERNEL); | |
2114 | if (!rx_urb) { | |
2115 | dev_err(dev, "%s: usb_alloc_urb failed for IR urb", __func__); | |
2116 | goto rx_urb_alloc_failed; | |
2117 | } | |
2118 | tx_urb = usb_alloc_urb(0, GFP_KERNEL); | |
2119 | if (!tx_urb) { | |
2120 | dev_err(dev, "%s: usb_alloc_urb failed for display urb", | |
2121 | __func__); | |
2122 | goto tx_urb_alloc_failed; | |
2123 | } | |
2124 | ||
2125 | mutex_init(&ictx->lock); | |
693508df | 2126 | spin_lock_init(&ictx->kc_lock); |
21677cfc JW |
2127 | |
2128 | mutex_lock(&ictx->lock); | |
2129 | ||
2130 | ictx->dev = dev; | |
2131 | ictx->usbdev_intf0 = usb_get_dev(interface_to_usbdev(intf)); | |
21677cfc JW |
2132 | ictx->rx_urb_intf0 = rx_urb; |
2133 | ictx->tx_urb = tx_urb; | |
bbe4690f | 2134 | ictx->rf_device = false; |
21677cfc JW |
2135 | |
2136 | ictx->vendor = le16_to_cpu(ictx->usbdev_intf0->descriptor.idVendor); | |
2137 | ictx->product = le16_to_cpu(ictx->usbdev_intf0->descriptor.idProduct); | |
2138 | ||
f7d141b3 KB |
2139 | /* default send_packet delay is 5ms but some devices need more */ |
2140 | ictx->send_packet_delay = id->driver_info & IMON_NEED_20MS_PKT_DELAY ? | |
2141 | 20 : 5; | |
2142 | ||
1f71baef | 2143 | ret = -ENODEV; |
21677cfc | 2144 | iface_desc = intf->cur_altsetting; |
1f71baef | 2145 | if (!imon_find_endpoints(ictx, iface_desc)) { |
21677cfc | 2146 | goto find_endpoint_failed; |
1f71baef | 2147 | } |
21677cfc | 2148 | |
21677cfc JW |
2149 | usb_fill_int_urb(ictx->rx_urb_intf0, ictx->usbdev_intf0, |
2150 | usb_rcvintpipe(ictx->usbdev_intf0, | |
2151 | ictx->rx_endpoint_intf0->bEndpointAddress), | |
2152 | ictx->usb_rx_buf, sizeof(ictx->usb_rx_buf), | |
2153 | usb_rx_callback_intf0, ictx, | |
2154 | ictx->rx_endpoint_intf0->bInterval); | |
2155 | ||
2156 | ret = usb_submit_urb(ictx->rx_urb_intf0, GFP_KERNEL); | |
2157 | if (ret) { | |
e2302501 | 2158 | pr_err("usb_submit_urb failed for intf0 (%d)\n", ret); |
21677cfc JW |
2159 | goto urb_submit_failed; |
2160 | } | |
2161 | ||
9ad77eb5 JW |
2162 | ictx->idev = imon_init_idev(ictx); |
2163 | if (!ictx->idev) { | |
2164 | dev_err(dev, "%s: input device setup failed\n", __func__); | |
2165 | goto idev_setup_failed; | |
2166 | } | |
2167 | ||
2168 | ictx->rdev = imon_init_rdev(ictx); | |
2169 | if (!ictx->rdev) { | |
2170 | dev_err(dev, "%s: rc device setup failed\n", __func__); | |
2171 | goto rdev_setup_failed; | |
2172 | } | |
2173 | ||
6f6b90c9 JW |
2174 | ictx->dev_present_intf0 = true; |
2175 | ||
23ef710e | 2176 | mutex_unlock(&ictx->lock); |
21677cfc JW |
2177 | return ictx; |
2178 | ||
eaf2bcc9 DH |
2179 | rdev_setup_failed: |
2180 | input_unregister_device(ictx->idev); | |
21677cfc | 2181 | idev_setup_failed: |
9ad77eb5 JW |
2182 | usb_kill_urb(ictx->rx_urb_intf0); |
2183 | urb_submit_failed: | |
21677cfc JW |
2184 | find_endpoint_failed: |
2185 | mutex_unlock(&ictx->lock); | |
2186 | usb_free_urb(tx_urb); | |
2187 | tx_urb_alloc_failed: | |
2188 | usb_free_urb(rx_urb); | |
2189 | rx_urb_alloc_failed: | |
2190 | kfree(ictx); | |
2191 | exit: | |
2192 | dev_err(dev, "unable to initialize intf0, err %d\n", ret); | |
2193 | ||
2194 | return NULL; | |
2195 | } | |
2196 | ||
2197 | static struct imon_context *imon_init_intf1(struct usb_interface *intf, | |
2198 | struct imon_context *ictx) | |
2199 | { | |
2200 | struct urb *rx_urb; | |
2201 | struct usb_host_interface *iface_desc; | |
1f71baef | 2202 | int ret = -ENOMEM; |
21677cfc JW |
2203 | |
2204 | rx_urb = usb_alloc_urb(0, GFP_KERNEL); | |
2205 | if (!rx_urb) { | |
e2302501 | 2206 | pr_err("usb_alloc_urb failed for IR urb\n"); |
21677cfc JW |
2207 | goto rx_urb_alloc_failed; |
2208 | } | |
2209 | ||
2210 | mutex_lock(&ictx->lock); | |
2211 | ||
2212 | if (ictx->display_type == IMON_DISPLAY_TYPE_VGA) { | |
2213 | init_timer(&ictx->ttimer); | |
2214 | ictx->ttimer.data = (unsigned long)ictx; | |
2215 | ictx->ttimer.function = imon_touch_display_timeout; | |
2216 | } | |
2217 | ||
2218 | ictx->usbdev_intf1 = usb_get_dev(interface_to_usbdev(intf)); | |
21677cfc JW |
2219 | ictx->rx_urb_intf1 = rx_urb; |
2220 | ||
1f71baef | 2221 | ret = -ENODEV; |
21677cfc JW |
2222 | iface_desc = intf->cur_altsetting; |
2223 | if (!imon_find_endpoints(ictx, iface_desc)) | |
2224 | goto find_endpoint_failed; | |
2225 | ||
2226 | if (ictx->display_type == IMON_DISPLAY_TYPE_VGA) { | |
2227 | ictx->touch = imon_init_touch(ictx); | |
2228 | if (!ictx->touch) | |
2229 | goto touch_setup_failed; | |
2230 | } else | |
2231 | ictx->touch = NULL; | |
2232 | ||
2233 | usb_fill_int_urb(ictx->rx_urb_intf1, ictx->usbdev_intf1, | |
2234 | usb_rcvintpipe(ictx->usbdev_intf1, | |
2235 | ictx->rx_endpoint_intf1->bEndpointAddress), | |
2236 | ictx->usb_rx_buf, sizeof(ictx->usb_rx_buf), | |
2237 | usb_rx_callback_intf1, ictx, | |
2238 | ictx->rx_endpoint_intf1->bInterval); | |
2239 | ||
2240 | ret = usb_submit_urb(ictx->rx_urb_intf1, GFP_KERNEL); | |
2241 | ||
2242 | if (ret) { | |
e2302501 | 2243 | pr_err("usb_submit_urb failed for intf1 (%d)\n", ret); |
21677cfc JW |
2244 | goto urb_submit_failed; |
2245 | } | |
2246 | ||
6f6b90c9 JW |
2247 | ictx->dev_present_intf1 = true; |
2248 | ||
23ef710e | 2249 | mutex_unlock(&ictx->lock); |
21677cfc JW |
2250 | return ictx; |
2251 | ||
2252 | urb_submit_failed: | |
20cd1959 | 2253 | if (ictx->touch) |
21677cfc | 2254 | input_unregister_device(ictx->touch); |
21677cfc JW |
2255 | touch_setup_failed: |
2256 | find_endpoint_failed: | |
2257 | mutex_unlock(&ictx->lock); | |
2258 | usb_free_urb(rx_urb); | |
2259 | rx_urb_alloc_failed: | |
8791d63a | 2260 | dev_err(ictx->dev, "unable to initialize intf1, err %d\n", ret); |
21677cfc JW |
2261 | |
2262 | return NULL; | |
2263 | } | |
2264 | ||
21677cfc JW |
2265 | static void imon_init_display(struct imon_context *ictx, |
2266 | struct usb_interface *intf) | |
2267 | { | |
2268 | int ret; | |
2269 | ||
2270 | dev_dbg(ictx->dev, "Registering iMON display with sysfs\n"); | |
2271 | ||
2272 | /* set up sysfs entry for built-in clock */ | |
6aa209e4 | 2273 | ret = sysfs_create_group(&intf->dev.kobj, &imon_display_attr_group); |
21677cfc JW |
2274 | if (ret) |
2275 | dev_err(ictx->dev, "Could not create display sysfs " | |
2276 | "entries(%d)", ret); | |
2277 | ||
2278 | if (ictx->display_type == IMON_DISPLAY_TYPE_LCD) | |
2279 | ret = usb_register_dev(intf, &imon_lcd_class); | |
2280 | else | |
2281 | ret = usb_register_dev(intf, &imon_vfd_class); | |
2282 | if (ret) | |
2283 | /* Not a fatal error, so ignore */ | |
2284 | dev_info(ictx->dev, "could not get a minor number for " | |
2285 | "display\n"); | |
2286 | ||
2287 | } | |
2288 | ||
2289 | /** | |
2290 | * Callback function for USB core API: Probe | |
2291 | */ | |
4c62e976 GKH |
2292 | static int imon_probe(struct usb_interface *interface, |
2293 | const struct usb_device_id *id) | |
21677cfc JW |
2294 | { |
2295 | struct usb_device *usbdev = NULL; | |
2296 | struct usb_host_interface *iface_desc = NULL; | |
2297 | struct usb_interface *first_if; | |
2298 | struct device *dev = &interface->dev; | |
76a2d21d | 2299 | int ifnum, sysfs_err; |
21677cfc JW |
2300 | int ret = 0; |
2301 | struct imon_context *ictx = NULL; | |
2302 | struct imon_context *first_if_ctx = NULL; | |
2303 | u16 vendor, product; | |
21677cfc | 2304 | |
21677cfc JW |
2305 | usbdev = usb_get_dev(interface_to_usbdev(interface)); |
2306 | iface_desc = interface->cur_altsetting; | |
2307 | ifnum = iface_desc->desc.bInterfaceNumber; | |
2308 | vendor = le16_to_cpu(usbdev->descriptor.idVendor); | |
2309 | product = le16_to_cpu(usbdev->descriptor.idProduct); | |
2310 | ||
2311 | dev_dbg(dev, "%s: found iMON device (%04x:%04x, intf%d)\n", | |
2312 | __func__, vendor, product, ifnum); | |
2313 | ||
2314 | /* prevent races probing devices w/multiple interfaces */ | |
2315 | mutex_lock(&driver_lock); | |
2316 | ||
2317 | first_if = usb_ifnum_to_if(usbdev, 0); | |
8350e155 | 2318 | first_if_ctx = usb_get_intfdata(first_if); |
21677cfc JW |
2319 | |
2320 | if (ifnum == 0) { | |
f7d141b3 | 2321 | ictx = imon_init_intf0(interface, id); |
21677cfc | 2322 | if (!ictx) { |
e2302501 | 2323 | pr_err("failed to initialize context!\n"); |
21677cfc JW |
2324 | ret = -ENODEV; |
2325 | goto fail; | |
2326 | } | |
2327 | ||
21677cfc | 2328 | } else { |
7d54ba0e KB |
2329 | /* this is the secondary interface on the device */ |
2330 | ||
2331 | /* fail early if first intf failed to register */ | |
2332 | if (!first_if_ctx) { | |
2333 | ret = -ENODEV; | |
2334 | goto fail; | |
2335 | } | |
2336 | ||
21677cfc JW |
2337 | ictx = imon_init_intf1(interface, first_if_ctx); |
2338 | if (!ictx) { | |
e2302501 | 2339 | pr_err("failed to attach to context!\n"); |
21677cfc JW |
2340 | ret = -ENODEV; |
2341 | goto fail; | |
2342 | } | |
2343 | ||
2344 | } | |
2345 | ||
2346 | usb_set_intfdata(interface, ictx); | |
2347 | ||
2348 | if (ifnum == 0) { | |
23ef710e JW |
2349 | mutex_lock(&ictx->lock); |
2350 | ||
bbe4690f JW |
2351 | if (product == 0xffdc && ictx->rf_device) { |
2352 | sysfs_err = sysfs_create_group(&interface->dev.kobj, | |
6aa209e4 | 2353 | &imon_rf_attr_group); |
bbe4690f | 2354 | if (sysfs_err) |
e2302501 JP |
2355 | pr_err("Could not create RF sysfs entries(%d)\n", |
2356 | sysfs_err); | |
bbe4690f JW |
2357 | } |
2358 | ||
21677cfc JW |
2359 | if (ictx->display_supported) |
2360 | imon_init_display(ictx, interface); | |
23ef710e JW |
2361 | |
2362 | mutex_unlock(&ictx->lock); | |
21677cfc JW |
2363 | } |
2364 | ||
21677cfc JW |
2365 | dev_info(dev, "iMON device (%04x:%04x, intf%d) on " |
2366 | "usb<%d:%d> initialized\n", vendor, product, ifnum, | |
2367 | usbdev->bus->busnum, usbdev->devnum); | |
2368 | ||
21677cfc JW |
2369 | mutex_unlock(&driver_lock); |
2370 | ||
2371 | return 0; | |
2372 | ||
2373 | fail: | |
2374 | mutex_unlock(&driver_lock); | |
2375 | dev_err(dev, "unable to register, err %d\n", ret); | |
2376 | ||
2377 | return ret; | |
2378 | } | |
2379 | ||
2380 | /** | |
2381 | * Callback function for USB core API: disconnect | |
2382 | */ | |
4c62e976 | 2383 | static void imon_disconnect(struct usb_interface *interface) |
21677cfc JW |
2384 | { |
2385 | struct imon_context *ictx; | |
2386 | struct device *dev; | |
2387 | int ifnum; | |
2388 | ||
2389 | /* prevent races with multi-interface device probing and display_open */ | |
2390 | mutex_lock(&driver_lock); | |
2391 | ||
2392 | ictx = usb_get_intfdata(interface); | |
2393 | dev = ictx->dev; | |
2394 | ifnum = interface->cur_altsetting->desc.bInterfaceNumber; | |
2395 | ||
21677cfc JW |
2396 | /* |
2397 | * sysfs_remove_group is safe to call even if sysfs_create_group | |
2398 | * hasn't been called | |
2399 | */ | |
6aa209e4 JW |
2400 | sysfs_remove_group(&interface->dev.kobj, &imon_display_attr_group); |
2401 | sysfs_remove_group(&interface->dev.kobj, &imon_rf_attr_group); | |
21677cfc JW |
2402 | |
2403 | usb_set_intfdata(interface, NULL); | |
2404 | ||
2405 | /* Abort ongoing write */ | |
2406 | if (ictx->tx.busy) { | |
2407 | usb_kill_urb(ictx->tx_urb); | |
2408 | complete_all(&ictx->tx.finished); | |
2409 | } | |
2410 | ||
2411 | if (ifnum == 0) { | |
f789bf40 | 2412 | ictx->dev_present_intf0 = false; |
21677cfc | 2413 | usb_kill_urb(ictx->rx_urb_intf0); |
eaf2bcc9 | 2414 | input_unregister_device(ictx->idev); |
d8b4b582 | 2415 | rc_unregister_device(ictx->rdev); |
21677cfc JW |
2416 | if (ictx->display_supported) { |
2417 | if (ictx->display_type == IMON_DISPLAY_TYPE_LCD) | |
2418 | usb_deregister_dev(interface, &imon_lcd_class); | |
76a2d21d | 2419 | else if (ictx->display_type == IMON_DISPLAY_TYPE_VFD) |
21677cfc JW |
2420 | usb_deregister_dev(interface, &imon_vfd_class); |
2421 | } | |
2422 | } else { | |
f789bf40 | 2423 | ictx->dev_present_intf1 = false; |
21677cfc | 2424 | usb_kill_urb(ictx->rx_urb_intf1); |
76a2d21d | 2425 | if (ictx->display_type == IMON_DISPLAY_TYPE_VGA) { |
21677cfc | 2426 | input_unregister_device(ictx->touch); |
76a2d21d JW |
2427 | del_timer_sync(&ictx->ttimer); |
2428 | } | |
21677cfc JW |
2429 | } |
2430 | ||
76a2d21d JW |
2431 | if (!ictx->dev_present_intf0 && !ictx->dev_present_intf1) |
2432 | free_imon_context(ictx); | |
21677cfc JW |
2433 | |
2434 | mutex_unlock(&driver_lock); | |
2435 | ||
2436 | dev_dbg(dev, "%s: iMON device (intf%d) disconnected\n", | |
2437 | __func__, ifnum); | |
2438 | } | |
2439 | ||
2440 | static int imon_suspend(struct usb_interface *intf, pm_message_t message) | |
2441 | { | |
2442 | struct imon_context *ictx = usb_get_intfdata(intf); | |
2443 | int ifnum = intf->cur_altsetting->desc.bInterfaceNumber; | |
2444 | ||
2445 | if (ifnum == 0) | |
2446 | usb_kill_urb(ictx->rx_urb_intf0); | |
2447 | else | |
2448 | usb_kill_urb(ictx->rx_urb_intf1); | |
2449 | ||
2450 | return 0; | |
2451 | } | |
2452 | ||
2453 | static int imon_resume(struct usb_interface *intf) | |
2454 | { | |
2455 | int rc = 0; | |
2456 | struct imon_context *ictx = usb_get_intfdata(intf); | |
2457 | int ifnum = intf->cur_altsetting->desc.bInterfaceNumber; | |
2458 | ||
2459 | if (ifnum == 0) { | |
2460 | usb_fill_int_urb(ictx->rx_urb_intf0, ictx->usbdev_intf0, | |
2461 | usb_rcvintpipe(ictx->usbdev_intf0, | |
2462 | ictx->rx_endpoint_intf0->bEndpointAddress), | |
2463 | ictx->usb_rx_buf, sizeof(ictx->usb_rx_buf), | |
2464 | usb_rx_callback_intf0, ictx, | |
2465 | ictx->rx_endpoint_intf0->bInterval); | |
2466 | ||
2467 | rc = usb_submit_urb(ictx->rx_urb_intf0, GFP_ATOMIC); | |
2468 | ||
2469 | } else { | |
2470 | usb_fill_int_urb(ictx->rx_urb_intf1, ictx->usbdev_intf1, | |
2471 | usb_rcvintpipe(ictx->usbdev_intf1, | |
2472 | ictx->rx_endpoint_intf1->bEndpointAddress), | |
2473 | ictx->usb_rx_buf, sizeof(ictx->usb_rx_buf), | |
2474 | usb_rx_callback_intf1, ictx, | |
2475 | ictx->rx_endpoint_intf1->bInterval); | |
2476 | ||
2477 | rc = usb_submit_urb(ictx->rx_urb_intf1, GFP_ATOMIC); | |
2478 | } | |
2479 | ||
2480 | return rc; | |
2481 | } | |
2482 | ||
ecb3b2b3 | 2483 | module_usb_driver(imon_driver); |