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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> | |
37 | ||
38 | #include <linux/input.h> | |
39 | #include <linux/usb.h> | |
40 | #include <linux/usb/input.h> | |
6bda9644 | 41 | #include <media/rc-core.h> |
21677cfc JW |
42 | |
43 | #include <linux/time.h> | |
44 | #include <linux/timer.h> | |
45 | ||
46 | #define MOD_AUTHOR "Jarod Wilson <jarod@wilsonet.com>" | |
47 | #define MOD_DESC "Driver for SoundGraph iMON MultiMedia IR/Display" | |
48 | #define MOD_NAME "imon" | |
23ef710e | 49 | #define MOD_VERSION "0.9.3" |
21677cfc JW |
50 | |
51 | #define DISPLAY_MINOR_BASE 144 | |
52 | #define DEVICE_NAME "lcd%d" | |
53 | ||
54 | #define BUF_CHUNK_SIZE 8 | |
55 | #define BUF_SIZE 128 | |
56 | ||
57 | #define BIT_DURATION 250 /* each bit received is 250us */ | |
58 | ||
59 | #define IMON_CLOCK_ENABLE_PACKETS 2 | |
21677cfc JW |
60 | |
61 | /*** P R O T O T Y P E S ***/ | |
62 | ||
63 | /* USB Callback prototypes */ | |
64 | static int imon_probe(struct usb_interface *interface, | |
65 | const struct usb_device_id *id); | |
66 | static void imon_disconnect(struct usb_interface *interface); | |
67 | static void usb_rx_callback_intf0(struct urb *urb); | |
68 | static void usb_rx_callback_intf1(struct urb *urb); | |
69 | static void usb_tx_callback(struct urb *urb); | |
70 | ||
71 | /* suspend/resume support */ | |
72 | static int imon_resume(struct usb_interface *intf); | |
73 | static int imon_suspend(struct usb_interface *intf, pm_message_t message); | |
74 | ||
75 | /* Display file_operations function prototypes */ | |
76 | static int display_open(struct inode *inode, struct file *file); | |
77 | static int display_close(struct inode *inode, struct file *file); | |
78 | ||
79 | /* VFD write operation */ | |
80 | static ssize_t vfd_write(struct file *file, const char *buf, | |
81 | size_t n_bytes, loff_t *pos); | |
82 | ||
83 | /* LCD file_operations override function prototypes */ | |
84 | static ssize_t lcd_write(struct file *file, const char *buf, | |
85 | size_t n_bytes, loff_t *pos); | |
86 | ||
87 | /*** G L O B A L S ***/ | |
88 | ||
89 | struct imon_context { | |
90 | struct device *dev; | |
21677cfc JW |
91 | /* Newer devices have two interfaces */ |
92 | struct usb_device *usbdev_intf0; | |
93 | struct usb_device *usbdev_intf1; | |
94 | ||
95 | bool display_supported; /* not all controllers do */ | |
96 | bool display_isopen; /* display port has been opened */ | |
bbe4690f | 97 | bool rf_device; /* true if iMON 2.4G LT/DT RF device */ |
21677cfc JW |
98 | bool rf_isassociating; /* RF remote associating */ |
99 | bool dev_present_intf0; /* USB device presence, interface 0 */ | |
100 | bool dev_present_intf1; /* USB device presence, interface 1 */ | |
101 | ||
102 | struct mutex lock; /* to lock this object */ | |
103 | wait_queue_head_t remove_ok; /* For unexpected USB disconnects */ | |
104 | ||
105 | struct usb_endpoint_descriptor *rx_endpoint_intf0; | |
106 | struct usb_endpoint_descriptor *rx_endpoint_intf1; | |
107 | struct usb_endpoint_descriptor *tx_endpoint; | |
108 | struct urb *rx_urb_intf0; | |
109 | struct urb *rx_urb_intf1; | |
110 | struct urb *tx_urb; | |
111 | bool tx_control; | |
112 | unsigned char usb_rx_buf[8]; | |
113 | unsigned char usb_tx_buf[8]; | |
114 | ||
115 | struct tx_t { | |
116 | unsigned char data_buf[35]; /* user data buffer */ | |
117 | struct completion finished; /* wait for write to finish */ | |
118 | bool busy; /* write in progress */ | |
119 | int status; /* status of tx completion */ | |
120 | } tx; | |
121 | ||
122 | u16 vendor; /* usb vendor ID */ | |
123 | u16 product; /* usb product ID */ | |
124 | ||
d8b4b582 | 125 | struct rc_dev *rdev; /* rc-core device for remote */ |
eaf2bcc9 | 126 | struct input_dev *idev; /* input device for panel & IR mouse */ |
21677cfc JW |
127 | struct input_dev *touch; /* input device for touchscreen */ |
128 | ||
693508df | 129 | spinlock_t kc_lock; /* make sure we get keycodes right */ |
21677cfc JW |
130 | u32 kc; /* current input keycode */ |
131 | u32 last_keycode; /* last reported input keycode */ | |
eaf2bcc9 DH |
132 | u32 rc_scancode; /* the computed remote scancode */ |
133 | u8 rc_toggle; /* the computed remote toggle bit */ | |
52b66144 | 134 | u64 rc_type; /* iMON or MCE (RC6) IR protocol? */ |
21677cfc JW |
135 | bool release_code; /* some keys send a release code */ |
136 | ||
137 | u8 display_type; /* store the display type */ | |
138 | bool pad_mouse; /* toggle kbd(0)/mouse(1) mode */ | |
139 | ||
eaf2bcc9 DH |
140 | char name_rdev[128]; /* rc input device name */ |
141 | char phys_rdev[64]; /* rc input device phys path */ | |
142 | ||
21677cfc JW |
143 | char name_idev[128]; /* input device name */ |
144 | char phys_idev[64]; /* input device phys path */ | |
21677cfc JW |
145 | |
146 | char name_touch[128]; /* touch screen name */ | |
147 | char phys_touch[64]; /* touch screen phys path */ | |
148 | struct timer_list ttimer; /* touch screen timer */ | |
149 | int touch_x; /* x coordinate on touchscreen */ | |
150 | int touch_y; /* y coordinate on touchscreen */ | |
151 | }; | |
152 | ||
153 | #define TOUCH_TIMEOUT (HZ/30) | |
21677cfc JW |
154 | |
155 | /* vfd character device file operations */ | |
156 | static const struct file_operations vfd_fops = { | |
157 | .owner = THIS_MODULE, | |
158 | .open = &display_open, | |
159 | .write = &vfd_write, | |
6038f373 AB |
160 | .release = &display_close, |
161 | .llseek = noop_llseek, | |
21677cfc JW |
162 | }; |
163 | ||
164 | /* lcd character device file operations */ | |
165 | static const struct file_operations lcd_fops = { | |
166 | .owner = THIS_MODULE, | |
167 | .open = &display_open, | |
168 | .write = &lcd_write, | |
6038f373 AB |
169 | .release = &display_close, |
170 | .llseek = noop_llseek, | |
21677cfc JW |
171 | }; |
172 | ||
173 | enum { | |
174 | IMON_DISPLAY_TYPE_AUTO = 0, | |
175 | IMON_DISPLAY_TYPE_VFD = 1, | |
176 | IMON_DISPLAY_TYPE_LCD = 2, | |
177 | IMON_DISPLAY_TYPE_VGA = 3, | |
178 | IMON_DISPLAY_TYPE_NONE = 4, | |
179 | }; | |
180 | ||
21677cfc JW |
181 | enum { |
182 | IMON_KEY_IMON = 0, | |
183 | IMON_KEY_MCE = 1, | |
184 | IMON_KEY_PANEL = 2, | |
185 | }; | |
186 | ||
187 | /* | |
188 | * USB Device ID for iMON USB Control Boards | |
189 | * | |
190 | * The Windows drivers contain 6 different inf files, more or less one for | |
191 | * each new device until the 0x0034-0x0046 devices, which all use the same | |
192 | * driver. Some of the devices in the 34-46 range haven't been definitively | |
193 | * identified yet. Early devices have either a TriGem Computer, Inc. or a | |
194 | * Samsung vendor ID (0x0aa8 and 0x04e8 respectively), while all later | |
195 | * devices use the SoundGraph vendor ID (0x15c2). This driver only supports | |
196 | * the ffdc and later devices, which do onboard decoding. | |
197 | */ | |
198 | static struct usb_device_id imon_usb_id_table[] = { | |
199 | /* | |
200 | * Several devices with this same device ID, all use iMON_PAD.inf | |
201 | * SoundGraph iMON PAD (IR & VFD) | |
202 | * SoundGraph iMON PAD (IR & LCD) | |
203 | * SoundGraph iMON Knob (IR only) | |
204 | */ | |
205 | { USB_DEVICE(0x15c2, 0xffdc) }, | |
206 | ||
207 | /* | |
208 | * Newer devices, all driven by the latest iMON Windows driver, full | |
209 | * list of device IDs extracted via 'strings Setup/data1.hdr |grep 15c2' | |
210 | * Need user input to fill in details on unknown devices. | |
211 | */ | |
212 | /* SoundGraph iMON OEM Touch LCD (IR & 7" VGA LCD) */ | |
213 | { USB_DEVICE(0x15c2, 0x0034) }, | |
214 | /* SoundGraph iMON OEM Touch LCD (IR & 4.3" VGA LCD) */ | |
215 | { USB_DEVICE(0x15c2, 0x0035) }, | |
216 | /* SoundGraph iMON OEM VFD (IR & VFD) */ | |
217 | { USB_DEVICE(0x15c2, 0x0036) }, | |
218 | /* device specifics unknown */ | |
219 | { USB_DEVICE(0x15c2, 0x0037) }, | |
220 | /* SoundGraph iMON OEM LCD (IR & LCD) */ | |
221 | { USB_DEVICE(0x15c2, 0x0038) }, | |
222 | /* SoundGraph iMON UltraBay (IR & LCD) */ | |
223 | { USB_DEVICE(0x15c2, 0x0039) }, | |
224 | /* device specifics unknown */ | |
225 | { USB_DEVICE(0x15c2, 0x003a) }, | |
226 | /* device specifics unknown */ | |
227 | { USB_DEVICE(0x15c2, 0x003b) }, | |
228 | /* SoundGraph iMON OEM Inside (IR only) */ | |
229 | { USB_DEVICE(0x15c2, 0x003c) }, | |
230 | /* device specifics unknown */ | |
231 | { USB_DEVICE(0x15c2, 0x003d) }, | |
232 | /* device specifics unknown */ | |
233 | { USB_DEVICE(0x15c2, 0x003e) }, | |
234 | /* device specifics unknown */ | |
235 | { USB_DEVICE(0x15c2, 0x003f) }, | |
236 | /* device specifics unknown */ | |
237 | { USB_DEVICE(0x15c2, 0x0040) }, | |
238 | /* SoundGraph iMON MINI (IR only) */ | |
239 | { USB_DEVICE(0x15c2, 0x0041) }, | |
240 | /* Antec Veris Multimedia Station EZ External (IR only) */ | |
241 | { USB_DEVICE(0x15c2, 0x0042) }, | |
242 | /* Antec Veris Multimedia Station Basic Internal (IR only) */ | |
243 | { USB_DEVICE(0x15c2, 0x0043) }, | |
244 | /* Antec Veris Multimedia Station Elite (IR & VFD) */ | |
245 | { USB_DEVICE(0x15c2, 0x0044) }, | |
246 | /* Antec Veris Multimedia Station Premiere (IR & LCD) */ | |
247 | { USB_DEVICE(0x15c2, 0x0045) }, | |
248 | /* device specifics unknown */ | |
249 | { USB_DEVICE(0x15c2, 0x0046) }, | |
250 | {} | |
251 | }; | |
252 | ||
253 | /* USB Device data */ | |
254 | static struct usb_driver imon_driver = { | |
255 | .name = MOD_NAME, | |
256 | .probe = imon_probe, | |
257 | .disconnect = imon_disconnect, | |
258 | .suspend = imon_suspend, | |
259 | .resume = imon_resume, | |
260 | .id_table = imon_usb_id_table, | |
261 | }; | |
262 | ||
263 | static struct usb_class_driver imon_vfd_class = { | |
264 | .name = DEVICE_NAME, | |
265 | .fops = &vfd_fops, | |
266 | .minor_base = DISPLAY_MINOR_BASE, | |
267 | }; | |
268 | ||
269 | static struct usb_class_driver imon_lcd_class = { | |
270 | .name = DEVICE_NAME, | |
271 | .fops = &lcd_fops, | |
272 | .minor_base = DISPLAY_MINOR_BASE, | |
273 | }; | |
274 | ||
275 | /* imon receiver front panel/knob key table */ | |
276 | static const struct { | |
277 | u64 hw_code; | |
278 | u32 keycode; | |
279 | } imon_panel_key_table[] = { | |
53a5fd4d JW |
280 | { 0x000000000f00ffeell, KEY_MEDIA }, /* Go */ |
281 | { 0x000000001200ffeell, KEY_UP }, | |
282 | { 0x000000001300ffeell, KEY_DOWN }, | |
283 | { 0x000000001400ffeell, KEY_LEFT }, | |
284 | { 0x000000001500ffeell, KEY_RIGHT }, | |
285 | { 0x000000001600ffeell, KEY_ENTER }, | |
286 | { 0x000000001700ffeell, KEY_ESC }, | |
1f71baef MCC |
287 | { 0x000000001f00ffeell, KEY_AUDIO }, |
288 | { 0x000000002000ffeell, KEY_VIDEO }, | |
289 | { 0x000000002100ffeell, KEY_CAMERA }, | |
290 | { 0x000000002700ffeell, KEY_DVD }, | |
291 | { 0x000000002300ffeell, KEY_TV }, | |
53a5fd4d JW |
292 | { 0x000000002b00ffeell, KEY_EXIT }, |
293 | { 0x000000002c00ffeell, KEY_SELECT }, | |
294 | { 0x000000002d00ffeell, KEY_MENU }, | |
1f71baef MCC |
295 | { 0x000000000500ffeell, KEY_PREVIOUS }, |
296 | { 0x000000000700ffeell, KEY_REWIND }, | |
297 | { 0x000000000400ffeell, KEY_STOP }, | |
298 | { 0x000000003c00ffeell, KEY_PLAYPAUSE }, | |
299 | { 0x000000000800ffeell, KEY_FASTFORWARD }, | |
300 | { 0x000000000600ffeell, KEY_NEXT }, | |
301 | { 0x000000010000ffeell, KEY_RIGHT }, | |
302 | { 0x000001000000ffeell, KEY_LEFT }, | |
303 | { 0x000000003d00ffeell, KEY_SELECT }, | |
304 | { 0x000100000000ffeell, KEY_VOLUMEUP }, | |
305 | { 0x010000000000ffeell, KEY_VOLUMEDOWN }, | |
306 | { 0x000000000100ffeell, KEY_MUTE }, | |
04292fc0 JW |
307 | /* 0xffdc iMON MCE VFD */ |
308 | { 0x00010000ffffffeell, KEY_VOLUMEUP }, | |
309 | { 0x01000000ffffffeell, KEY_VOLUMEDOWN }, | |
443b3919 JW |
310 | { 0x00000001ffffffeell, KEY_MUTE }, |
311 | { 0x0000000fffffffeell, KEY_MEDIA }, | |
312 | { 0x00000012ffffffeell, KEY_UP }, | |
313 | { 0x00000013ffffffeell, KEY_DOWN }, | |
314 | { 0x00000014ffffffeell, KEY_LEFT }, | |
315 | { 0x00000015ffffffeell, KEY_RIGHT }, | |
316 | { 0x00000016ffffffeell, KEY_ENTER }, | |
317 | { 0x00000017ffffffeell, KEY_ESC }, | |
21677cfc | 318 | /* iMON Knob values */ |
1f71baef MCC |
319 | { 0x000100ffffffffeell, KEY_VOLUMEUP }, |
320 | { 0x010000ffffffffeell, KEY_VOLUMEDOWN }, | |
321 | { 0x000008ffffffffeell, KEY_MUTE }, | |
21677cfc JW |
322 | }; |
323 | ||
324 | /* to prevent races between open() and disconnect(), probing, etc */ | |
325 | static DEFINE_MUTEX(driver_lock); | |
326 | ||
327 | /* Module bookkeeping bits */ | |
328 | MODULE_AUTHOR(MOD_AUTHOR); | |
329 | MODULE_DESCRIPTION(MOD_DESC); | |
330 | MODULE_VERSION(MOD_VERSION); | |
331 | MODULE_LICENSE("GPL"); | |
332 | MODULE_DEVICE_TABLE(usb, imon_usb_id_table); | |
333 | ||
334 | static bool debug; | |
335 | module_param(debug, bool, S_IRUGO | S_IWUSR); | |
6aa209e4 | 336 | MODULE_PARM_DESC(debug, "Debug messages: 0=no, 1=yes (default: no)"); |
21677cfc JW |
337 | |
338 | /* lcd, vfd, vga or none? should be auto-detected, but can be overridden... */ | |
339 | static int display_type; | |
340 | module_param(display_type, int, S_IRUGO); | |
341 | MODULE_PARM_DESC(display_type, "Type of attached display. 0=autodetect, " | |
342 | "1=vfd, 2=lcd, 3=vga, 4=none (default: autodetect)"); | |
343 | ||
6718e8ad JW |
344 | static int pad_stabilize = 1; |
345 | module_param(pad_stabilize, int, S_IRUGO | S_IWUSR); | |
346 | MODULE_PARM_DESC(pad_stabilize, "Apply stabilization algorithm to iMON PAD " | |
347 | "presses in arrow key mode. 0=disable, 1=enable (default)."); | |
21677cfc JW |
348 | |
349 | /* | |
350 | * In certain use cases, mouse mode isn't really helpful, and could actually | |
351 | * cause confusion, so allow disabling it when the IR device is open. | |
352 | */ | |
353 | static bool nomouse; | |
354 | module_param(nomouse, bool, S_IRUGO | S_IWUSR); | |
355 | MODULE_PARM_DESC(nomouse, "Disable mouse input device mode when IR device is " | |
356 | "open. 0=don't disable, 1=disable. (default: don't disable)"); | |
357 | ||
358 | /* threshold at which a pad push registers as an arrow key in kbd mode */ | |
359 | static int pad_thresh; | |
360 | module_param(pad_thresh, int, S_IRUGO | S_IWUSR); | |
361 | MODULE_PARM_DESC(pad_thresh, "Threshold at which a pad push registers as an " | |
362 | "arrow key in kbd mode (default: 28)"); | |
363 | ||
364 | ||
365 | static void free_imon_context(struct imon_context *ictx) | |
366 | { | |
367 | struct device *dev = ictx->dev; | |
368 | ||
369 | usb_free_urb(ictx->tx_urb); | |
370 | usb_free_urb(ictx->rx_urb_intf0); | |
371 | usb_free_urb(ictx->rx_urb_intf1); | |
372 | kfree(ictx); | |
373 | ||
374 | dev_dbg(dev, "%s: iMON context freed\n", __func__); | |
375 | } | |
376 | ||
377 | /** | |
378 | * Called when the Display device (e.g. /dev/lcd0) | |
379 | * is opened by the application. | |
380 | */ | |
381 | static int display_open(struct inode *inode, struct file *file) | |
382 | { | |
383 | struct usb_interface *interface; | |
384 | struct imon_context *ictx = NULL; | |
385 | int subminor; | |
386 | int retval = 0; | |
387 | ||
388 | /* prevent races with disconnect */ | |
389 | mutex_lock(&driver_lock); | |
390 | ||
391 | subminor = iminor(inode); | |
392 | interface = usb_find_interface(&imon_driver, subminor); | |
393 | if (!interface) { | |
e2302501 | 394 | pr_err("could not find interface for minor %d\n", subminor); |
21677cfc JW |
395 | retval = -ENODEV; |
396 | goto exit; | |
397 | } | |
398 | ictx = usb_get_intfdata(interface); | |
399 | ||
400 | if (!ictx) { | |
e2302501 | 401 | pr_err("no context found for minor %d\n", subminor); |
21677cfc JW |
402 | retval = -ENODEV; |
403 | goto exit; | |
404 | } | |
405 | ||
406 | mutex_lock(&ictx->lock); | |
407 | ||
408 | if (!ictx->display_supported) { | |
e2302501 | 409 | pr_err("display not supported by device\n"); |
21677cfc JW |
410 | retval = -ENODEV; |
411 | } else if (ictx->display_isopen) { | |
e2302501 | 412 | pr_err("display port is already open\n"); |
21677cfc JW |
413 | retval = -EBUSY; |
414 | } else { | |
f789bf40 | 415 | ictx->display_isopen = true; |
21677cfc JW |
416 | file->private_data = ictx; |
417 | dev_dbg(ictx->dev, "display port opened\n"); | |
418 | } | |
419 | ||
420 | mutex_unlock(&ictx->lock); | |
421 | ||
422 | exit: | |
423 | mutex_unlock(&driver_lock); | |
424 | return retval; | |
425 | } | |
426 | ||
427 | /** | |
428 | * Called when the display device (e.g. /dev/lcd0) | |
429 | * is closed by the application. | |
430 | */ | |
431 | static int display_close(struct inode *inode, struct file *file) | |
432 | { | |
433 | struct imon_context *ictx = NULL; | |
434 | int retval = 0; | |
435 | ||
abf84383 | 436 | ictx = file->private_data; |
21677cfc JW |
437 | |
438 | if (!ictx) { | |
e2302501 | 439 | pr_err("no context for device\n"); |
21677cfc JW |
440 | return -ENODEV; |
441 | } | |
442 | ||
443 | mutex_lock(&ictx->lock); | |
444 | ||
445 | if (!ictx->display_supported) { | |
e2302501 | 446 | pr_err("display not supported by device\n"); |
21677cfc JW |
447 | retval = -ENODEV; |
448 | } else if (!ictx->display_isopen) { | |
e2302501 | 449 | pr_err("display is not open\n"); |
21677cfc JW |
450 | retval = -EIO; |
451 | } else { | |
f789bf40 | 452 | ictx->display_isopen = false; |
21677cfc | 453 | dev_dbg(ictx->dev, "display port closed\n"); |
21677cfc JW |
454 | } |
455 | ||
456 | mutex_unlock(&ictx->lock); | |
457 | return retval; | |
458 | } | |
459 | ||
460 | /** | |
23ef710e JW |
461 | * Sends a packet to the device -- this function must be called with |
462 | * ictx->lock held, or its unlock/lock sequence while waiting for tx | |
463 | * to complete can/will lead to a deadlock. | |
21677cfc JW |
464 | */ |
465 | static int send_packet(struct imon_context *ictx) | |
466 | { | |
467 | unsigned int pipe; | |
468 | unsigned long timeout; | |
469 | int interval = 0; | |
470 | int retval = 0; | |
471 | struct usb_ctrlrequest *control_req = NULL; | |
472 | ||
473 | /* Check if we need to use control or interrupt urb */ | |
474 | if (!ictx->tx_control) { | |
475 | pipe = usb_sndintpipe(ictx->usbdev_intf0, | |
476 | ictx->tx_endpoint->bEndpointAddress); | |
477 | interval = ictx->tx_endpoint->bInterval; | |
478 | ||
479 | usb_fill_int_urb(ictx->tx_urb, ictx->usbdev_intf0, pipe, | |
480 | ictx->usb_tx_buf, | |
481 | sizeof(ictx->usb_tx_buf), | |
482 | usb_tx_callback, ictx, interval); | |
483 | ||
484 | ictx->tx_urb->actual_length = 0; | |
485 | } else { | |
486 | /* fill request into kmalloc'ed space: */ | |
487 | control_req = kmalloc(sizeof(struct usb_ctrlrequest), | |
488 | GFP_KERNEL); | |
489 | if (control_req == NULL) | |
490 | return -ENOMEM; | |
491 | ||
492 | /* setup packet is '21 09 0200 0001 0008' */ | |
493 | control_req->bRequestType = 0x21; | |
494 | control_req->bRequest = 0x09; | |
495 | control_req->wValue = cpu_to_le16(0x0200); | |
496 | control_req->wIndex = cpu_to_le16(0x0001); | |
497 | control_req->wLength = cpu_to_le16(0x0008); | |
498 | ||
499 | /* control pipe is endpoint 0x00 */ | |
500 | pipe = usb_sndctrlpipe(ictx->usbdev_intf0, 0); | |
501 | ||
502 | /* build the control urb */ | |
503 | usb_fill_control_urb(ictx->tx_urb, ictx->usbdev_intf0, | |
504 | pipe, (unsigned char *)control_req, | |
505 | ictx->usb_tx_buf, | |
506 | sizeof(ictx->usb_tx_buf), | |
507 | usb_tx_callback, ictx); | |
508 | ictx->tx_urb->actual_length = 0; | |
509 | } | |
510 | ||
511 | init_completion(&ictx->tx.finished); | |
f789bf40 | 512 | ictx->tx.busy = true; |
21677cfc JW |
513 | smp_rmb(); /* ensure later readers know we're busy */ |
514 | ||
515 | retval = usb_submit_urb(ictx->tx_urb, GFP_KERNEL); | |
516 | if (retval) { | |
f789bf40 | 517 | ictx->tx.busy = false; |
21677cfc | 518 | smp_rmb(); /* ensure later readers know we're not busy */ |
e2302501 | 519 | pr_err("error submitting urb(%d)\n", retval); |
21677cfc JW |
520 | } else { |
521 | /* Wait for transmission to complete (or abort) */ | |
522 | mutex_unlock(&ictx->lock); | |
523 | retval = wait_for_completion_interruptible( | |
524 | &ictx->tx.finished); | |
525 | if (retval) | |
e2302501 | 526 | pr_err("task interrupted\n"); |
21677cfc JW |
527 | mutex_lock(&ictx->lock); |
528 | ||
529 | retval = ictx->tx.status; | |
530 | if (retval) | |
e2302501 | 531 | pr_err("packet tx failed (%d)\n", retval); |
21677cfc JW |
532 | } |
533 | ||
534 | kfree(control_req); | |
535 | ||
536 | /* | |
537 | * Induce a mandatory 5ms delay before returning, as otherwise, | |
538 | * send_packet can get called so rapidly as to overwhelm the device, | |
539 | * particularly on faster systems and/or those with quirky usb. | |
540 | */ | |
541 | timeout = msecs_to_jiffies(5); | |
542 | set_current_state(TASK_UNINTERRUPTIBLE); | |
543 | schedule_timeout(timeout); | |
544 | ||
545 | return retval; | |
546 | } | |
547 | ||
548 | /** | |
549 | * Sends an associate packet to the iMON 2.4G. | |
550 | * | |
551 | * This might not be such a good idea, since it has an id collision with | |
552 | * some versions of the "IR & VFD" combo. The only way to determine if it | |
553 | * is an RF version is to look at the product description string. (Which | |
554 | * we currently do not fetch). | |
555 | */ | |
556 | static int send_associate_24g(struct imon_context *ictx) | |
557 | { | |
558 | int retval; | |
559 | const unsigned char packet[8] = { 0x01, 0x00, 0x00, 0x00, | |
560 | 0x00, 0x00, 0x00, 0x20 }; | |
561 | ||
562 | if (!ictx) { | |
e2302501 | 563 | pr_err("no context for device\n"); |
21677cfc JW |
564 | return -ENODEV; |
565 | } | |
566 | ||
567 | if (!ictx->dev_present_intf0) { | |
e2302501 | 568 | pr_err("no iMON device present\n"); |
21677cfc JW |
569 | return -ENODEV; |
570 | } | |
571 | ||
572 | memcpy(ictx->usb_tx_buf, packet, sizeof(packet)); | |
573 | retval = send_packet(ictx); | |
574 | ||
575 | return retval; | |
576 | } | |
577 | ||
578 | /** | |
579 | * Sends packets to setup and show clock on iMON display | |
580 | * | |
581 | * Arguments: year - last 2 digits of year, month - 1..12, | |
582 | * day - 1..31, dow - day of the week (0-Sun...6-Sat), | |
583 | * hour - 0..23, minute - 0..59, second - 0..59 | |
584 | */ | |
585 | static int send_set_imon_clock(struct imon_context *ictx, | |
586 | unsigned int year, unsigned int month, | |
587 | unsigned int day, unsigned int dow, | |
588 | unsigned int hour, unsigned int minute, | |
589 | unsigned int second) | |
590 | { | |
591 | unsigned char clock_enable_pkt[IMON_CLOCK_ENABLE_PACKETS][8]; | |
592 | int retval = 0; | |
593 | int i; | |
594 | ||
595 | if (!ictx) { | |
e2302501 | 596 | pr_err("no context for device\n"); |
21677cfc JW |
597 | return -ENODEV; |
598 | } | |
599 | ||
600 | switch (ictx->display_type) { | |
601 | case IMON_DISPLAY_TYPE_LCD: | |
602 | clock_enable_pkt[0][0] = 0x80; | |
603 | clock_enable_pkt[0][1] = year; | |
604 | clock_enable_pkt[0][2] = month-1; | |
605 | clock_enable_pkt[0][3] = day; | |
606 | clock_enable_pkt[0][4] = hour; | |
607 | clock_enable_pkt[0][5] = minute; | |
608 | clock_enable_pkt[0][6] = second; | |
609 | ||
610 | clock_enable_pkt[1][0] = 0x80; | |
611 | clock_enable_pkt[1][1] = 0; | |
612 | clock_enable_pkt[1][2] = 0; | |
613 | clock_enable_pkt[1][3] = 0; | |
614 | clock_enable_pkt[1][4] = 0; | |
615 | clock_enable_pkt[1][5] = 0; | |
616 | clock_enable_pkt[1][6] = 0; | |
617 | ||
618 | if (ictx->product == 0xffdc) { | |
619 | clock_enable_pkt[0][7] = 0x50; | |
620 | clock_enable_pkt[1][7] = 0x51; | |
621 | } else { | |
622 | clock_enable_pkt[0][7] = 0x88; | |
623 | clock_enable_pkt[1][7] = 0x8a; | |
624 | } | |
625 | ||
626 | break; | |
627 | ||
628 | case IMON_DISPLAY_TYPE_VFD: | |
629 | clock_enable_pkt[0][0] = year; | |
630 | clock_enable_pkt[0][1] = month-1; | |
631 | clock_enable_pkt[0][2] = day; | |
632 | clock_enable_pkt[0][3] = dow; | |
633 | clock_enable_pkt[0][4] = hour; | |
634 | clock_enable_pkt[0][5] = minute; | |
635 | clock_enable_pkt[0][6] = second; | |
636 | clock_enable_pkt[0][7] = 0x40; | |
637 | ||
638 | clock_enable_pkt[1][0] = 0; | |
639 | clock_enable_pkt[1][1] = 0; | |
640 | clock_enable_pkt[1][2] = 1; | |
641 | clock_enable_pkt[1][3] = 0; | |
642 | clock_enable_pkt[1][4] = 0; | |
643 | clock_enable_pkt[1][5] = 0; | |
644 | clock_enable_pkt[1][6] = 0; | |
645 | clock_enable_pkt[1][7] = 0x42; | |
646 | ||
647 | break; | |
648 | ||
649 | default: | |
650 | return -ENODEV; | |
651 | } | |
652 | ||
653 | for (i = 0; i < IMON_CLOCK_ENABLE_PACKETS; i++) { | |
654 | memcpy(ictx->usb_tx_buf, clock_enable_pkt[i], 8); | |
655 | retval = send_packet(ictx); | |
656 | if (retval) { | |
e2302501 | 657 | pr_err("send_packet failed for packet %d\n", i); |
21677cfc JW |
658 | break; |
659 | } | |
660 | } | |
661 | ||
662 | return retval; | |
663 | } | |
664 | ||
665 | /** | |
666 | * These are the sysfs functions to handle the association on the iMON 2.4G LT. | |
667 | */ | |
668 | static ssize_t show_associate_remote(struct device *d, | |
669 | struct device_attribute *attr, | |
670 | char *buf) | |
671 | { | |
672 | struct imon_context *ictx = dev_get_drvdata(d); | |
673 | ||
674 | if (!ictx) | |
675 | return -ENODEV; | |
676 | ||
677 | mutex_lock(&ictx->lock); | |
678 | if (ictx->rf_isassociating) | |
679 | strcpy(buf, "associating\n"); | |
680 | else | |
681 | strcpy(buf, "closed\n"); | |
682 | ||
683 | dev_info(d, "Visit http://www.lirc.org/html/imon-24g.html for " | |
684 | "instructions on how to associate your iMON 2.4G DT/LT " | |
685 | "remote\n"); | |
686 | mutex_unlock(&ictx->lock); | |
687 | return strlen(buf); | |
688 | } | |
689 | ||
690 | static ssize_t store_associate_remote(struct device *d, | |
691 | struct device_attribute *attr, | |
692 | const char *buf, size_t count) | |
693 | { | |
694 | struct imon_context *ictx; | |
695 | ||
696 | ictx = dev_get_drvdata(d); | |
697 | ||
698 | if (!ictx) | |
699 | return -ENODEV; | |
700 | ||
701 | mutex_lock(&ictx->lock); | |
f789bf40 | 702 | ictx->rf_isassociating = true; |
21677cfc JW |
703 | send_associate_24g(ictx); |
704 | mutex_unlock(&ictx->lock); | |
705 | ||
706 | return count; | |
707 | } | |
708 | ||
709 | /** | |
710 | * sysfs functions to control internal imon clock | |
711 | */ | |
712 | static ssize_t show_imon_clock(struct device *d, | |
713 | struct device_attribute *attr, char *buf) | |
714 | { | |
715 | struct imon_context *ictx = dev_get_drvdata(d); | |
716 | size_t len; | |
717 | ||
718 | if (!ictx) | |
719 | return -ENODEV; | |
720 | ||
721 | mutex_lock(&ictx->lock); | |
722 | ||
723 | if (!ictx->display_supported) { | |
724 | len = snprintf(buf, PAGE_SIZE, "Not supported."); | |
725 | } else { | |
726 | len = snprintf(buf, PAGE_SIZE, | |
727 | "To set the clock on your iMON display:\n" | |
728 | "# date \"+%%y %%m %%d %%w %%H %%M %%S\" > imon_clock\n" | |
729 | "%s", ictx->display_isopen ? | |
730 | "\nNOTE: imon device must be closed\n" : ""); | |
731 | } | |
732 | ||
733 | mutex_unlock(&ictx->lock); | |
734 | ||
735 | return len; | |
736 | } | |
737 | ||
738 | static ssize_t store_imon_clock(struct device *d, | |
739 | struct device_attribute *attr, | |
740 | const char *buf, size_t count) | |
741 | { | |
742 | struct imon_context *ictx = dev_get_drvdata(d); | |
743 | ssize_t retval; | |
744 | unsigned int year, month, day, dow, hour, minute, second; | |
745 | ||
746 | if (!ictx) | |
747 | return -ENODEV; | |
748 | ||
749 | mutex_lock(&ictx->lock); | |
750 | ||
751 | if (!ictx->display_supported) { | |
752 | retval = -ENODEV; | |
753 | goto exit; | |
754 | } else if (ictx->display_isopen) { | |
755 | retval = -EBUSY; | |
756 | goto exit; | |
757 | } | |
758 | ||
759 | if (sscanf(buf, "%u %u %u %u %u %u %u", &year, &month, &day, &dow, | |
760 | &hour, &minute, &second) != 7) { | |
761 | retval = -EINVAL; | |
762 | goto exit; | |
763 | } | |
764 | ||
765 | if ((month < 1 || month > 12) || | |
766 | (day < 1 || day > 31) || (dow > 6) || | |
767 | (hour > 23) || (minute > 59) || (second > 59)) { | |
768 | retval = -EINVAL; | |
769 | goto exit; | |
770 | } | |
771 | ||
772 | retval = send_set_imon_clock(ictx, year, month, day, dow, | |
773 | hour, minute, second); | |
774 | if (retval) | |
775 | goto exit; | |
776 | ||
777 | retval = count; | |
778 | exit: | |
779 | mutex_unlock(&ictx->lock); | |
780 | ||
781 | return retval; | |
782 | } | |
783 | ||
784 | ||
785 | static DEVICE_ATTR(imon_clock, S_IWUSR | S_IRUGO, show_imon_clock, | |
786 | store_imon_clock); | |
787 | ||
788 | static DEVICE_ATTR(associate_remote, S_IWUSR | S_IRUGO, show_associate_remote, | |
789 | store_associate_remote); | |
790 | ||
791 | static struct attribute *imon_display_sysfs_entries[] = { | |
792 | &dev_attr_imon_clock.attr, | |
793 | NULL | |
794 | }; | |
795 | ||
6aa209e4 | 796 | static struct attribute_group imon_display_attr_group = { |
21677cfc JW |
797 | .attrs = imon_display_sysfs_entries |
798 | }; | |
799 | ||
800 | static struct attribute *imon_rf_sysfs_entries[] = { | |
801 | &dev_attr_associate_remote.attr, | |
802 | NULL | |
803 | }; | |
804 | ||
6aa209e4 | 805 | static struct attribute_group imon_rf_attr_group = { |
21677cfc JW |
806 | .attrs = imon_rf_sysfs_entries |
807 | }; | |
808 | ||
809 | /** | |
810 | * Writes data to the VFD. The iMON VFD is 2x16 characters | |
811 | * and requires data in 5 consecutive USB interrupt packets, | |
812 | * each packet but the last carrying 7 bytes. | |
813 | * | |
814 | * I don't know if the VFD board supports features such as | |
815 | * scrolling, clearing rows, blanking, etc. so at | |
816 | * the caller must provide a full screen of data. If fewer | |
817 | * than 32 bytes are provided spaces will be appended to | |
818 | * generate a full screen. | |
819 | */ | |
820 | static ssize_t vfd_write(struct file *file, const char *buf, | |
821 | size_t n_bytes, loff_t *pos) | |
822 | { | |
823 | int i; | |
824 | int offset; | |
825 | int seq; | |
826 | int retval = 0; | |
827 | struct imon_context *ictx; | |
828 | const unsigned char vfd_packet6[] = { | |
829 | 0x01, 0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF }; | |
830 | ||
abf84383 | 831 | ictx = file->private_data; |
21677cfc | 832 | if (!ictx) { |
e2302501 | 833 | pr_err("no context for device\n"); |
21677cfc JW |
834 | return -ENODEV; |
835 | } | |
836 | ||
837 | mutex_lock(&ictx->lock); | |
838 | ||
839 | if (!ictx->dev_present_intf0) { | |
e2302501 | 840 | pr_err("no iMON device present\n"); |
21677cfc JW |
841 | retval = -ENODEV; |
842 | goto exit; | |
843 | } | |
844 | ||
845 | if (n_bytes <= 0 || n_bytes > 32) { | |
e2302501 | 846 | pr_err("invalid payload size\n"); |
21677cfc JW |
847 | retval = -EINVAL; |
848 | goto exit; | |
849 | } | |
850 | ||
851 | if (copy_from_user(ictx->tx.data_buf, buf, n_bytes)) { | |
852 | retval = -EFAULT; | |
853 | goto exit; | |
854 | } | |
855 | ||
856 | /* Pad with spaces */ | |
857 | for (i = n_bytes; i < 32; ++i) | |
858 | ictx->tx.data_buf[i] = ' '; | |
859 | ||
860 | for (i = 32; i < 35; ++i) | |
861 | ictx->tx.data_buf[i] = 0xFF; | |
862 | ||
863 | offset = 0; | |
864 | seq = 0; | |
865 | ||
866 | do { | |
867 | memcpy(ictx->usb_tx_buf, ictx->tx.data_buf + offset, 7); | |
868 | ictx->usb_tx_buf[7] = (unsigned char) seq; | |
869 | ||
870 | retval = send_packet(ictx); | |
871 | if (retval) { | |
e2302501 | 872 | pr_err("send packet failed for packet #%d\n", seq / 2); |
21677cfc JW |
873 | goto exit; |
874 | } else { | |
875 | seq += 2; | |
876 | offset += 7; | |
877 | } | |
878 | ||
879 | } while (offset < 35); | |
880 | ||
881 | /* Send packet #6 */ | |
882 | memcpy(ictx->usb_tx_buf, &vfd_packet6, sizeof(vfd_packet6)); | |
883 | ictx->usb_tx_buf[7] = (unsigned char) seq; | |
884 | retval = send_packet(ictx); | |
885 | if (retval) | |
e2302501 | 886 | pr_err("send packet failed for packet #%d\n", seq / 2); |
21677cfc JW |
887 | |
888 | exit: | |
889 | mutex_unlock(&ictx->lock); | |
890 | ||
891 | return (!retval) ? n_bytes : retval; | |
892 | } | |
893 | ||
894 | /** | |
895 | * Writes data to the LCD. The iMON OEM LCD screen expects 8-byte | |
896 | * packets. We accept data as 16 hexadecimal digits, followed by a | |
897 | * newline (to make it easy to drive the device from a command-line | |
898 | * -- even though the actual binary data is a bit complicated). | |
899 | * | |
900 | * The device itself is not a "traditional" text-mode display. It's | |
901 | * actually a 16x96 pixel bitmap display. That means if you want to | |
902 | * display text, you've got to have your own "font" and translate the | |
903 | * text into bitmaps for display. This is really flexible (you can | |
904 | * display whatever diacritics you need, and so on), but it's also | |
905 | * a lot more complicated than most LCDs... | |
906 | */ | |
907 | static ssize_t lcd_write(struct file *file, const char *buf, | |
908 | size_t n_bytes, loff_t *pos) | |
909 | { | |
910 | int retval = 0; | |
911 | struct imon_context *ictx; | |
912 | ||
abf84383 | 913 | ictx = file->private_data; |
21677cfc | 914 | if (!ictx) { |
e2302501 | 915 | pr_err("no context for device\n"); |
21677cfc JW |
916 | return -ENODEV; |
917 | } | |
918 | ||
919 | mutex_lock(&ictx->lock); | |
920 | ||
921 | if (!ictx->display_supported) { | |
e2302501 | 922 | pr_err("no iMON display present\n"); |
21677cfc JW |
923 | retval = -ENODEV; |
924 | goto exit; | |
925 | } | |
926 | ||
927 | if (n_bytes != 8) { | |
e2302501 | 928 | pr_err("invalid payload size: %d (expected 8)\n", (int)n_bytes); |
21677cfc JW |
929 | retval = -EINVAL; |
930 | goto exit; | |
931 | } | |
932 | ||
933 | if (copy_from_user(ictx->usb_tx_buf, buf, 8)) { | |
934 | retval = -EFAULT; | |
935 | goto exit; | |
936 | } | |
937 | ||
938 | retval = send_packet(ictx); | |
939 | if (retval) { | |
e2302501 | 940 | pr_err("send packet failed!\n"); |
21677cfc JW |
941 | goto exit; |
942 | } else { | |
943 | dev_dbg(ictx->dev, "%s: write %d bytes to LCD\n", | |
944 | __func__, (int) n_bytes); | |
945 | } | |
946 | exit: | |
947 | mutex_unlock(&ictx->lock); | |
948 | return (!retval) ? n_bytes : retval; | |
949 | } | |
950 | ||
951 | /** | |
952 | * Callback function for USB core API: transmit data | |
953 | */ | |
954 | static void usb_tx_callback(struct urb *urb) | |
955 | { | |
956 | struct imon_context *ictx; | |
957 | ||
958 | if (!urb) | |
959 | return; | |
960 | ictx = (struct imon_context *)urb->context; | |
961 | if (!ictx) | |
962 | return; | |
963 | ||
964 | ictx->tx.status = urb->status; | |
965 | ||
966 | /* notify waiters that write has finished */ | |
f789bf40 | 967 | ictx->tx.busy = false; |
21677cfc JW |
968 | smp_rmb(); /* ensure later readers know we're not busy */ |
969 | complete(&ictx->tx.finished); | |
970 | } | |
971 | ||
21677cfc JW |
972 | /** |
973 | * report touchscreen input | |
974 | */ | |
975 | static void imon_touch_display_timeout(unsigned long data) | |
976 | { | |
977 | struct imon_context *ictx = (struct imon_context *)data; | |
978 | ||
f03900d6 | 979 | if (ictx->display_type != IMON_DISPLAY_TYPE_VGA) |
21677cfc JW |
980 | return; |
981 | ||
982 | input_report_abs(ictx->touch, ABS_X, ictx->touch_x); | |
983 | input_report_abs(ictx->touch, ABS_Y, ictx->touch_y); | |
984 | input_report_key(ictx->touch, BTN_TOUCH, 0x00); | |
985 | input_sync(ictx->touch); | |
986 | } | |
987 | ||
988 | /** | |
989 | * iMON IR receivers support two different signal sets -- those used by | |
990 | * the iMON remotes, and those used by the Windows MCE remotes (which is | |
991 | * really just RC-6), but only one or the other at a time, as the signals | |
992 | * are decoded onboard the receiver. | |
23ef710e JW |
993 | * |
994 | * This function gets called two different ways, one way is from | |
995 | * rc_register_device, for initial protocol selection/setup, and the other is | |
996 | * via a userspace-initiated protocol change request, either by direct sysfs | |
997 | * prodding or by something like ir-keytable. In the rc_register_device case, | |
998 | * the imon context lock is already held, but when initiated from userspace, | |
999 | * it is not, so we must acquire it prior to calling send_packet, which | |
1000 | * requires that the lock is held. | |
21677cfc | 1001 | */ |
52b66144 | 1002 | static int imon_ir_change_protocol(struct rc_dev *rc, u64 rc_type) |
21677cfc JW |
1003 | { |
1004 | int retval; | |
d8b4b582 | 1005 | struct imon_context *ictx = rc->priv; |
21677cfc | 1006 | struct device *dev = ictx->dev; |
23ef710e | 1007 | bool unlock = false; |
21677cfc JW |
1008 | unsigned char ir_proto_packet[] = { |
1009 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x86 }; | |
1010 | ||
52b66144 | 1011 | if (rc_type && !(rc_type & rc->allowed_protos)) |
21677cfc JW |
1012 | dev_warn(dev, "Looks like you're trying to use an IR protocol " |
1013 | "this device does not support\n"); | |
1014 | ||
52b66144 MCC |
1015 | switch (rc_type) { |
1016 | case RC_TYPE_RC6: | |
21677cfc JW |
1017 | dev_dbg(dev, "Configuring IR receiver for MCE protocol\n"); |
1018 | ir_proto_packet[0] = 0x01; | |
21677cfc | 1019 | break; |
52b66144 MCC |
1020 | case RC_TYPE_UNKNOWN: |
1021 | case RC_TYPE_OTHER: | |
666a9ed8 | 1022 | dev_dbg(dev, "Configuring IR receiver for iMON protocol\n"); |
76f1ef42 | 1023 | if (!pad_stabilize) |
666a9ed8 | 1024 | dev_dbg(dev, "PAD stabilize functionality disabled\n"); |
21677cfc | 1025 | /* ir_proto_packet[0] = 0x00; // already the default */ |
52b66144 | 1026 | rc_type = RC_TYPE_OTHER; |
21677cfc JW |
1027 | break; |
1028 | default: | |
6718e8ad | 1029 | dev_warn(dev, "Unsupported IR protocol specified, overriding " |
666a9ed8 | 1030 | "to iMON IR protocol\n"); |
76f1ef42 | 1031 | if (!pad_stabilize) |
666a9ed8 | 1032 | dev_dbg(dev, "PAD stabilize functionality disabled\n"); |
6718e8ad | 1033 | /* ir_proto_packet[0] = 0x00; // already the default */ |
52b66144 | 1034 | rc_type = RC_TYPE_OTHER; |
21677cfc JW |
1035 | break; |
1036 | } | |
1037 | ||
1038 | memcpy(ictx->usb_tx_buf, &ir_proto_packet, sizeof(ir_proto_packet)); | |
1039 | ||
23ef710e JW |
1040 | if (!mutex_is_locked(&ictx->lock)) { |
1041 | unlock = true; | |
1042 | mutex_lock(&ictx->lock); | |
1043 | } | |
1044 | ||
21677cfc | 1045 | retval = send_packet(ictx); |
6718e8ad JW |
1046 | if (retval) |
1047 | goto out; | |
1048 | ||
52b66144 | 1049 | ictx->rc_type = rc_type; |
76f1ef42 | 1050 | ictx->pad_mouse = false; |
6718e8ad JW |
1051 | |
1052 | out: | |
23ef710e JW |
1053 | if (unlock) |
1054 | mutex_unlock(&ictx->lock); | |
1055 | ||
6718e8ad | 1056 | return retval; |
21677cfc JW |
1057 | } |
1058 | ||
1059 | static inline int tv2int(const struct timeval *a, const struct timeval *b) | |
1060 | { | |
1061 | int usecs = 0; | |
1062 | int sec = 0; | |
1063 | ||
1064 | if (b->tv_usec > a->tv_usec) { | |
1065 | usecs = 1000000; | |
1066 | sec--; | |
1067 | } | |
1068 | ||
1069 | usecs += a->tv_usec - b->tv_usec; | |
1070 | ||
1071 | sec += a->tv_sec - b->tv_sec; | |
1072 | sec *= 1000; | |
1073 | usecs /= 1000; | |
1074 | sec += usecs; | |
1075 | ||
1076 | if (sec < 0) | |
1077 | sec = 1000; | |
1078 | ||
1079 | return sec; | |
1080 | } | |
1081 | ||
1082 | /** | |
1083 | * The directional pad behaves a bit differently, depending on whether this is | |
1084 | * one of the older ffdc devices or a newer device. Newer devices appear to | |
1085 | * have a higher resolution matrix for more precise mouse movement, but it | |
1086 | * makes things overly sensitive in keyboard mode, so we do some interesting | |
1087 | * contortions to make it less touchy. Older devices run through the same | |
1088 | * routine with shorter timeout and a smaller threshold. | |
1089 | */ | |
1090 | static int stabilize(int a, int b, u16 timeout, u16 threshold) | |
1091 | { | |
1092 | struct timeval ct; | |
1093 | static struct timeval prev_time = {0, 0}; | |
1094 | static struct timeval hit_time = {0, 0}; | |
1095 | static int x, y, prev_result, hits; | |
1096 | int result = 0; | |
1097 | int msec, msec_hit; | |
1098 | ||
1099 | do_gettimeofday(&ct); | |
1100 | msec = tv2int(&ct, &prev_time); | |
1101 | msec_hit = tv2int(&ct, &hit_time); | |
1102 | ||
1103 | if (msec > 100) { | |
1104 | x = 0; | |
1105 | y = 0; | |
1106 | hits = 0; | |
1107 | } | |
1108 | ||
1109 | x += a; | |
1110 | y += b; | |
1111 | ||
1112 | prev_time = ct; | |
1113 | ||
1114 | if (abs(x) > threshold || abs(y) > threshold) { | |
1115 | if (abs(y) > abs(x)) | |
1116 | result = (y > 0) ? 0x7F : 0x80; | |
1117 | else | |
1118 | result = (x > 0) ? 0x7F00 : 0x8000; | |
1119 | ||
1120 | x = 0; | |
1121 | y = 0; | |
1122 | ||
1123 | if (result == prev_result) { | |
1124 | hits++; | |
1125 | ||
1126 | if (hits > 3) { | |
1127 | switch (result) { | |
1128 | case 0x7F: | |
1129 | y = 17 * threshold / 30; | |
1130 | break; | |
1131 | case 0x80: | |
1132 | y -= 17 * threshold / 30; | |
1133 | break; | |
1134 | case 0x7F00: | |
1135 | x = 17 * threshold / 30; | |
1136 | break; | |
1137 | case 0x8000: | |
1138 | x -= 17 * threshold / 30; | |
1139 | break; | |
1140 | } | |
1141 | } | |
1142 | ||
1143 | if (hits == 2 && msec_hit < timeout) { | |
1144 | result = 0; | |
1145 | hits = 1; | |
1146 | } | |
1147 | } else { | |
1148 | prev_result = result; | |
1149 | hits = 1; | |
1150 | hit_time = ct; | |
1151 | } | |
1152 | } | |
1153 | ||
1154 | return result; | |
1155 | } | |
1156 | ||
eaf2bcc9 | 1157 | static u32 imon_remote_key_lookup(struct imon_context *ictx, u32 scancode) |
21677cfc | 1158 | { |
21677cfc JW |
1159 | u32 keycode; |
1160 | u32 release; | |
1161 | bool is_release_code = false; | |
1162 | ||
1163 | /* Look for the initial press of a button */ | |
ca86674b | 1164 | keycode = rc_g_keycode_from_table(ictx->rdev, scancode); |
eaf2bcc9 DH |
1165 | ictx->rc_toggle = 0x0; |
1166 | ictx->rc_scancode = scancode; | |
21677cfc JW |
1167 | |
1168 | /* Look for the release of a button */ | |
1169 | if (keycode == KEY_RESERVED) { | |
1170 | release = scancode & ~0x4000; | |
ca86674b | 1171 | keycode = rc_g_keycode_from_table(ictx->rdev, release); |
21677cfc JW |
1172 | if (keycode != KEY_RESERVED) |
1173 | is_release_code = true; | |
1174 | } | |
1175 | ||
1176 | ictx->release_code = is_release_code; | |
1177 | ||
1178 | return keycode; | |
1179 | } | |
1180 | ||
eaf2bcc9 | 1181 | static u32 imon_mce_key_lookup(struct imon_context *ictx, u32 scancode) |
21677cfc | 1182 | { |
21677cfc JW |
1183 | u32 keycode; |
1184 | ||
1185 | #define MCE_KEY_MASK 0x7000 | |
1186 | #define MCE_TOGGLE_BIT 0x8000 | |
1187 | ||
1188 | /* | |
1189 | * On some receivers, mce keys decode to 0x8000f04xx and 0x8000f84xx | |
1190 | * (the toggle bit flipping between alternating key presses), while | |
1191 | * on other receivers, we see 0x8000f74xx and 0x8000ff4xx. To keep | |
1192 | * the table trim, we always or in the bits to look up 0x8000ff4xx, | |
1193 | * but we can't or them into all codes, as some keys are decoded in | |
1194 | * a different way w/o the same use of the toggle bit... | |
1195 | */ | |
eaf2bcc9 | 1196 | if (scancode & 0x80000000) |
21677cfc JW |
1197 | scancode = scancode | MCE_KEY_MASK | MCE_TOGGLE_BIT; |
1198 | ||
eaf2bcc9 | 1199 | ictx->rc_scancode = scancode; |
ca86674b | 1200 | keycode = rc_g_keycode_from_table(ictx->rdev, scancode); |
eaf2bcc9 DH |
1201 | |
1202 | /* not used in mce mode, but make sure we know its false */ | |
1203 | ictx->release_code = false; | |
21677cfc JW |
1204 | |
1205 | return keycode; | |
1206 | } | |
1207 | ||
eaf2bcc9 | 1208 | static u32 imon_panel_key_lookup(u64 code) |
21677cfc JW |
1209 | { |
1210 | int i; | |
083e4721 | 1211 | u32 keycode = KEY_RESERVED; |
21677cfc | 1212 | |
083e4721 JW |
1213 | for (i = 0; i < ARRAY_SIZE(imon_panel_key_table); i++) { |
1214 | if (imon_panel_key_table[i].hw_code == (code | 0xffee)) { | |
1215 | keycode = imon_panel_key_table[i].keycode; | |
21677cfc | 1216 | break; |
083e4721 JW |
1217 | } |
1218 | } | |
21677cfc JW |
1219 | |
1220 | return keycode; | |
1221 | } | |
1222 | ||
1223 | static bool imon_mouse_event(struct imon_context *ictx, | |
1224 | unsigned char *buf, int len) | |
1225 | { | |
1226 | char rel_x = 0x00, rel_y = 0x00; | |
1227 | u8 right_shift = 1; | |
f789bf40 | 1228 | bool mouse_input = true; |
21677cfc | 1229 | int dir = 0; |
693508df JW |
1230 | unsigned long flags; |
1231 | ||
1232 | spin_lock_irqsave(&ictx->kc_lock, flags); | |
21677cfc JW |
1233 | |
1234 | /* newer iMON device PAD or mouse button */ | |
1235 | if (ictx->product != 0xffdc && (buf[0] & 0x01) && len == 5) { | |
1236 | rel_x = buf[2]; | |
1237 | rel_y = buf[3]; | |
1238 | right_shift = 1; | |
1239 | /* 0xffdc iMON PAD or mouse button input */ | |
1240 | } else if (ictx->product == 0xffdc && (buf[0] & 0x40) && | |
1241 | !((buf[1] & 0x01) || ((buf[1] >> 2) & 0x01))) { | |
1242 | rel_x = (buf[1] & 0x08) | (buf[1] & 0x10) >> 2 | | |
1243 | (buf[1] & 0x20) >> 4 | (buf[1] & 0x40) >> 6; | |
1244 | if (buf[0] & 0x02) | |
1245 | rel_x |= ~0x0f; | |
1246 | rel_x = rel_x + rel_x / 2; | |
1247 | rel_y = (buf[2] & 0x08) | (buf[2] & 0x10) >> 2 | | |
1248 | (buf[2] & 0x20) >> 4 | (buf[2] & 0x40) >> 6; | |
1249 | if (buf[0] & 0x01) | |
1250 | rel_y |= ~0x0f; | |
1251 | rel_y = rel_y + rel_y / 2; | |
1252 | right_shift = 2; | |
1253 | /* some ffdc devices decode mouse buttons differently... */ | |
1254 | } else if (ictx->product == 0xffdc && (buf[0] == 0x68)) { | |
1255 | right_shift = 2; | |
1256 | /* ch+/- buttons, which we use for an emulated scroll wheel */ | |
1257 | } else if (ictx->kc == KEY_CHANNELUP && (buf[2] & 0x40) != 0x40) { | |
1258 | dir = 1; | |
1259 | } else if (ictx->kc == KEY_CHANNELDOWN && (buf[2] & 0x40) != 0x40) { | |
1260 | dir = -1; | |
1261 | } else | |
f789bf40 | 1262 | mouse_input = false; |
21677cfc | 1263 | |
693508df JW |
1264 | spin_unlock_irqrestore(&ictx->kc_lock, flags); |
1265 | ||
21677cfc JW |
1266 | if (mouse_input) { |
1267 | dev_dbg(ictx->dev, "sending mouse data via input subsystem\n"); | |
1268 | ||
1269 | if (dir) { | |
1270 | input_report_rel(ictx->idev, REL_WHEEL, dir); | |
1271 | } else if (rel_x || rel_y) { | |
1272 | input_report_rel(ictx->idev, REL_X, rel_x); | |
1273 | input_report_rel(ictx->idev, REL_Y, rel_y); | |
1274 | } else { | |
1275 | input_report_key(ictx->idev, BTN_LEFT, buf[1] & 0x1); | |
1276 | input_report_key(ictx->idev, BTN_RIGHT, | |
1277 | buf[1] >> right_shift & 0x1); | |
1278 | } | |
1279 | input_sync(ictx->idev); | |
693508df | 1280 | spin_lock_irqsave(&ictx->kc_lock, flags); |
21677cfc | 1281 | ictx->last_keycode = ictx->kc; |
693508df | 1282 | spin_unlock_irqrestore(&ictx->kc_lock, flags); |
21677cfc JW |
1283 | } |
1284 | ||
1285 | return mouse_input; | |
1286 | } | |
1287 | ||
1288 | static void imon_touch_event(struct imon_context *ictx, unsigned char *buf) | |
1289 | { | |
1290 | mod_timer(&ictx->ttimer, jiffies + TOUCH_TIMEOUT); | |
1291 | ictx->touch_x = (buf[0] << 4) | (buf[1] >> 4); | |
1292 | ictx->touch_y = 0xfff - ((buf[2] << 4) | (buf[1] & 0xf)); | |
1293 | input_report_abs(ictx->touch, ABS_X, ictx->touch_x); | |
1294 | input_report_abs(ictx->touch, ABS_Y, ictx->touch_y); | |
1295 | input_report_key(ictx->touch, BTN_TOUCH, 0x01); | |
1296 | input_sync(ictx->touch); | |
1297 | } | |
1298 | ||
1299 | static void imon_pad_to_keys(struct imon_context *ictx, unsigned char *buf) | |
1300 | { | |
1301 | int dir = 0; | |
1302 | char rel_x = 0x00, rel_y = 0x00; | |
1303 | u16 timeout, threshold; | |
eaf2bcc9 | 1304 | u32 scancode = KEY_RESERVED; |
693508df | 1305 | unsigned long flags; |
21677cfc JW |
1306 | |
1307 | /* | |
1308 | * The imon directional pad functions more like a touchpad. Bytes 3 & 4 | |
1309 | * contain a position coordinate (x,y), with each component ranging | |
1310 | * from -14 to 14. We want to down-sample this to only 4 discrete values | |
1311 | * for up/down/left/right arrow keys. Also, when you get too close to | |
25985edc | 1312 | * diagonals, it has a tendency to jump back and forth, so lets try to |
21677cfc JW |
1313 | * ignore when they get too close. |
1314 | */ | |
1315 | if (ictx->product != 0xffdc) { | |
1316 | /* first, pad to 8 bytes so it conforms with everything else */ | |
1317 | buf[5] = buf[6] = buf[7] = 0; | |
1318 | timeout = 500; /* in msecs */ | |
1319 | /* (2*threshold) x (2*threshold) square */ | |
1320 | threshold = pad_thresh ? pad_thresh : 28; | |
1321 | rel_x = buf[2]; | |
1322 | rel_y = buf[3]; | |
1323 | ||
52b66144 | 1324 | if (ictx->rc_type == RC_TYPE_OTHER && pad_stabilize) { |
21677cfc JW |
1325 | if ((buf[1] == 0) && ((rel_x != 0) || (rel_y != 0))) { |
1326 | dir = stabilize((int)rel_x, (int)rel_y, | |
1327 | timeout, threshold); | |
1328 | if (!dir) { | |
693508df JW |
1329 | spin_lock_irqsave(&ictx->kc_lock, |
1330 | flags); | |
21677cfc | 1331 | ictx->kc = KEY_UNKNOWN; |
693508df JW |
1332 | spin_unlock_irqrestore(&ictx->kc_lock, |
1333 | flags); | |
21677cfc JW |
1334 | return; |
1335 | } | |
1336 | buf[2] = dir & 0xFF; | |
1337 | buf[3] = (dir >> 8) & 0xFF; | |
eaf2bcc9 | 1338 | scancode = be32_to_cpu(*((u32 *)buf)); |
21677cfc JW |
1339 | } |
1340 | } else { | |
eaf2bcc9 DH |
1341 | /* |
1342 | * Hack alert: instead of using keycodes, we have | |
1343 | * to use hard-coded scancodes here... | |
1344 | */ | |
21677cfc JW |
1345 | if (abs(rel_y) > abs(rel_x)) { |
1346 | buf[2] = (rel_y > 0) ? 0x7F : 0x80; | |
1347 | buf[3] = 0; | |
eaf2bcc9 DH |
1348 | if (rel_y > 0) |
1349 | scancode = 0x01007f00; /* KEY_DOWN */ | |
1350 | else | |
1351 | scancode = 0x01008000; /* KEY_UP */ | |
21677cfc JW |
1352 | } else { |
1353 | buf[2] = 0; | |
1354 | buf[3] = (rel_x > 0) ? 0x7F : 0x80; | |
eaf2bcc9 DH |
1355 | if (rel_x > 0) |
1356 | scancode = 0x0100007f; /* KEY_RIGHT */ | |
1357 | else | |
1358 | scancode = 0x01000080; /* KEY_LEFT */ | |
21677cfc JW |
1359 | } |
1360 | } | |
1361 | ||
1362 | /* | |
1363 | * Handle on-board decoded pad events for e.g. older VFD/iMON-Pad | |
1364 | * device (15c2:ffdc). The remote generates various codes from | |
1365 | * 0x68nnnnB7 to 0x6AnnnnB7, the left mouse button generates | |
1366 | * 0x688301b7 and the right one 0x688481b7. All other keys generate | |
1367 | * 0x2nnnnnnn. Position coordinate is encoded in buf[1] and buf[2] with | |
1368 | * reversed endianess. Extract direction from buffer, rotate endianess, | |
1369 | * adjust sign and feed the values into stabilize(). The resulting codes | |
1370 | * will be 0x01008000, 0x01007F00, which match the newer devices. | |
1371 | */ | |
1372 | } else { | |
1373 | timeout = 10; /* in msecs */ | |
1374 | /* (2*threshold) x (2*threshold) square */ | |
1375 | threshold = pad_thresh ? pad_thresh : 15; | |
1376 | ||
1377 | /* buf[1] is x */ | |
1378 | rel_x = (buf[1] & 0x08) | (buf[1] & 0x10) >> 2 | | |
1379 | (buf[1] & 0x20) >> 4 | (buf[1] & 0x40) >> 6; | |
1380 | if (buf[0] & 0x02) | |
1381 | rel_x |= ~0x10+1; | |
1382 | /* buf[2] is y */ | |
1383 | rel_y = (buf[2] & 0x08) | (buf[2] & 0x10) >> 2 | | |
1384 | (buf[2] & 0x20) >> 4 | (buf[2] & 0x40) >> 6; | |
1385 | if (buf[0] & 0x01) | |
1386 | rel_y |= ~0x10+1; | |
1387 | ||
1388 | buf[0] = 0x01; | |
1389 | buf[1] = buf[4] = buf[5] = buf[6] = buf[7] = 0; | |
1390 | ||
52b66144 | 1391 | if (ictx->rc_type == RC_TYPE_OTHER && pad_stabilize) { |
21677cfc JW |
1392 | dir = stabilize((int)rel_x, (int)rel_y, |
1393 | timeout, threshold); | |
1394 | if (!dir) { | |
693508df | 1395 | spin_lock_irqsave(&ictx->kc_lock, flags); |
21677cfc | 1396 | ictx->kc = KEY_UNKNOWN; |
693508df | 1397 | spin_unlock_irqrestore(&ictx->kc_lock, flags); |
21677cfc JW |
1398 | return; |
1399 | } | |
1400 | buf[2] = dir & 0xFF; | |
1401 | buf[3] = (dir >> 8) & 0xFF; | |
eaf2bcc9 | 1402 | scancode = be32_to_cpu(*((u32 *)buf)); |
21677cfc | 1403 | } else { |
eaf2bcc9 DH |
1404 | /* |
1405 | * Hack alert: instead of using keycodes, we have | |
1406 | * to use hard-coded scancodes here... | |
1407 | */ | |
21677cfc JW |
1408 | if (abs(rel_y) > abs(rel_x)) { |
1409 | buf[2] = (rel_y > 0) ? 0x7F : 0x80; | |
1410 | buf[3] = 0; | |
eaf2bcc9 DH |
1411 | if (rel_y > 0) |
1412 | scancode = 0x01007f00; /* KEY_DOWN */ | |
1413 | else | |
1414 | scancode = 0x01008000; /* KEY_UP */ | |
21677cfc JW |
1415 | } else { |
1416 | buf[2] = 0; | |
1417 | buf[3] = (rel_x > 0) ? 0x7F : 0x80; | |
eaf2bcc9 DH |
1418 | if (rel_x > 0) |
1419 | scancode = 0x0100007f; /* KEY_RIGHT */ | |
1420 | else | |
1421 | scancode = 0x01000080; /* KEY_LEFT */ | |
21677cfc JW |
1422 | } |
1423 | } | |
1424 | } | |
eaf2bcc9 | 1425 | |
693508df JW |
1426 | if (scancode) { |
1427 | spin_lock_irqsave(&ictx->kc_lock, flags); | |
eaf2bcc9 | 1428 | ictx->kc = imon_remote_key_lookup(ictx, scancode); |
693508df JW |
1429 | spin_unlock_irqrestore(&ictx->kc_lock, flags); |
1430 | } | |
21677cfc JW |
1431 | } |
1432 | ||
eaf2bcc9 DH |
1433 | /** |
1434 | * figure out if these is a press or a release. We don't actually | |
1435 | * care about repeats, as those will be auto-generated within the IR | |
1436 | * subsystem for repeating scancodes. | |
1437 | */ | |
21677cfc JW |
1438 | static int imon_parse_press_type(struct imon_context *ictx, |
1439 | unsigned char *buf, u8 ktype) | |
1440 | { | |
1441 | int press_type = 0; | |
693508df JW |
1442 | unsigned long flags; |
1443 | ||
1444 | spin_lock_irqsave(&ictx->kc_lock, flags); | |
21677cfc JW |
1445 | |
1446 | /* key release of 0x02XXXXXX key */ | |
1447 | if (ictx->kc == KEY_RESERVED && buf[0] == 0x02 && buf[3] == 0x00) | |
1448 | ictx->kc = ictx->last_keycode; | |
1449 | ||
1450 | /* mouse button release on (some) 0xffdc devices */ | |
1451 | else if (ictx->kc == KEY_RESERVED && buf[0] == 0x68 && buf[1] == 0x82 && | |
1452 | buf[2] == 0x81 && buf[3] == 0xb7) | |
1453 | ictx->kc = ictx->last_keycode; | |
1454 | ||
1455 | /* mouse button release on (some other) 0xffdc devices */ | |
1456 | else if (ictx->kc == KEY_RESERVED && buf[0] == 0x01 && buf[1] == 0x00 && | |
1457 | buf[2] == 0x81 && buf[3] == 0xb7) | |
1458 | ictx->kc = ictx->last_keycode; | |
1459 | ||
eaf2bcc9 | 1460 | /* mce-specific button handling, no keyup events */ |
21677cfc | 1461 | else if (ktype == IMON_KEY_MCE) { |
eaf2bcc9 DH |
1462 | ictx->rc_toggle = buf[2]; |
1463 | press_type = 1; | |
21677cfc JW |
1464 | |
1465 | /* incoherent or irrelevant data */ | |
1466 | } else if (ictx->kc == KEY_RESERVED) | |
1467 | press_type = -EINVAL; | |
1468 | ||
1469 | /* key release of 0xXXXXXXb7 key */ | |
1470 | else if (ictx->release_code) | |
1471 | press_type = 0; | |
1472 | ||
1473 | /* this is a button press */ | |
1474 | else | |
1475 | press_type = 1; | |
1476 | ||
693508df JW |
1477 | spin_unlock_irqrestore(&ictx->kc_lock, flags); |
1478 | ||
21677cfc JW |
1479 | return press_type; |
1480 | } | |
1481 | ||
1482 | /** | |
1483 | * Process the incoming packet | |
1484 | */ | |
1485 | static void imon_incoming_packet(struct imon_context *ictx, | |
1486 | struct urb *urb, int intf) | |
1487 | { | |
1488 | int len = urb->actual_length; | |
1489 | unsigned char *buf = urb->transfer_buffer; | |
1490 | struct device *dev = ictx->dev; | |
693508df | 1491 | unsigned long flags; |
21677cfc | 1492 | u32 kc; |
21677cfc | 1493 | int i; |
eaf2bcc9 | 1494 | u64 scancode; |
21677cfc JW |
1495 | int press_type = 0; |
1496 | int msec; | |
1497 | struct timeval t; | |
1498 | static struct timeval prev_time = { 0, 0 }; | |
eaf2bcc9 | 1499 | u8 ktype; |
21677cfc | 1500 | |
21677cfc | 1501 | /* filter out junk data on the older 0xffdc imon devices */ |
bbe4690f | 1502 | if ((buf[0] == 0xff) && (buf[1] == 0xff) && (buf[2] == 0xff)) |
21677cfc JW |
1503 | return; |
1504 | ||
1505 | /* Figure out what key was pressed */ | |
21677cfc | 1506 | if (len == 8 && buf[7] == 0xee) { |
eaf2bcc9 | 1507 | scancode = be64_to_cpu(*((u64 *)buf)); |
21677cfc | 1508 | ktype = IMON_KEY_PANEL; |
eaf2bcc9 | 1509 | kc = imon_panel_key_lookup(scancode); |
21677cfc | 1510 | } else { |
eaf2bcc9 | 1511 | scancode = be32_to_cpu(*((u32 *)buf)); |
52b66144 | 1512 | if (ictx->rc_type == RC_TYPE_RC6) { |
eaf2bcc9 | 1513 | ktype = IMON_KEY_IMON; |
21677cfc JW |
1514 | if (buf[0] == 0x80) |
1515 | ktype = IMON_KEY_MCE; | |
eaf2bcc9 DH |
1516 | kc = imon_mce_key_lookup(ictx, scancode); |
1517 | } else { | |
1518 | ktype = IMON_KEY_IMON; | |
1519 | kc = imon_remote_key_lookup(ictx, scancode); | |
1520 | } | |
21677cfc JW |
1521 | } |
1522 | ||
693508df | 1523 | spin_lock_irqsave(&ictx->kc_lock, flags); |
21677cfc JW |
1524 | /* keyboard/mouse mode toggle button */ |
1525 | if (kc == KEY_KEYBOARD && !ictx->release_code) { | |
1526 | ictx->last_keycode = kc; | |
1527 | if (!nomouse) { | |
1528 | ictx->pad_mouse = ~(ictx->pad_mouse) & 0x1; | |
1529 | dev_dbg(dev, "toggling to %s mode\n", | |
1530 | ictx->pad_mouse ? "mouse" : "keyboard"); | |
693508df | 1531 | spin_unlock_irqrestore(&ictx->kc_lock, flags); |
21677cfc JW |
1532 | return; |
1533 | } else { | |
76f1ef42 | 1534 | ictx->pad_mouse = false; |
21677cfc JW |
1535 | dev_dbg(dev, "mouse mode disabled, passing key value\n"); |
1536 | } | |
1537 | } | |
1538 | ||
1539 | ictx->kc = kc; | |
693508df | 1540 | spin_unlock_irqrestore(&ictx->kc_lock, flags); |
21677cfc JW |
1541 | |
1542 | /* send touchscreen events through input subsystem if touchpad data */ | |
1543 | if (ictx->display_type == IMON_DISPLAY_TYPE_VGA && len == 8 && | |
1544 | buf[7] == 0x86) { | |
1545 | imon_touch_event(ictx, buf); | |
eaf2bcc9 | 1546 | return; |
21677cfc JW |
1547 | |
1548 | /* look for mouse events with pad in mouse mode */ | |
1549 | } else if (ictx->pad_mouse) { | |
1550 | if (imon_mouse_event(ictx, buf, len)) | |
1551 | return; | |
1552 | } | |
1553 | ||
1554 | /* Now for some special handling to convert pad input to arrow keys */ | |
1555 | if (((len == 5) && (buf[0] == 0x01) && (buf[4] == 0x00)) || | |
1556 | ((len == 8) && (buf[0] & 0x40) && | |
1557 | !(buf[1] & 0x1 || buf[1] >> 2 & 0x1))) { | |
1558 | len = 8; | |
1559 | imon_pad_to_keys(ictx, buf); | |
21677cfc JW |
1560 | } |
1561 | ||
1562 | if (debug) { | |
1563 | printk(KERN_INFO "intf%d decoded packet: ", intf); | |
1564 | for (i = 0; i < len; ++i) | |
1565 | printk("%02x ", buf[i]); | |
1566 | printk("\n"); | |
1567 | } | |
1568 | ||
1569 | press_type = imon_parse_press_type(ictx, buf, ktype); | |
1570 | if (press_type < 0) | |
1571 | goto not_input_data; | |
1572 | ||
693508df | 1573 | spin_lock_irqsave(&ictx->kc_lock, flags); |
21677cfc JW |
1574 | if (ictx->kc == KEY_UNKNOWN) |
1575 | goto unknown_key; | |
693508df | 1576 | spin_unlock_irqrestore(&ictx->kc_lock, flags); |
21677cfc | 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 | ||
1620 | unknown_key: | |
693508df | 1621 | spin_unlock_irqrestore(&ictx->kc_lock, flags); |
21677cfc | 1622 | dev_info(dev, "%s: unknown keypress, code 0x%llx\n", __func__, |
eaf2bcc9 | 1623 | (long long)scancode); |
21677cfc JW |
1624 | return; |
1625 | ||
1626 | not_input_data: | |
1627 | if (len != 8) { | |
1628 | dev_warn(dev, "imon %s: invalid incoming packet " | |
1629 | "size (len = %d, intf%d)\n", __func__, len, intf); | |
1630 | return; | |
1631 | } | |
1632 | ||
1633 | /* iMON 2.4G associate frame */ | |
1634 | if (buf[0] == 0x00 && | |
1635 | buf[2] == 0xFF && /* REFID */ | |
1636 | buf[3] == 0xFF && | |
1637 | buf[4] == 0xFF && | |
1638 | buf[5] == 0xFF && /* iMON 2.4G */ | |
1639 | ((buf[6] == 0x4E && buf[7] == 0xDF) || /* LT */ | |
1640 | (buf[6] == 0x5E && buf[7] == 0xDF))) { /* DT */ | |
1641 | dev_warn(dev, "%s: remote associated refid=%02X\n", | |
1642 | __func__, buf[1]); | |
f789bf40 | 1643 | ictx->rf_isassociating = false; |
21677cfc JW |
1644 | } |
1645 | } | |
1646 | ||
1647 | /** | |
1648 | * Callback function for USB core API: receive data | |
1649 | */ | |
1650 | static void usb_rx_callback_intf0(struct urb *urb) | |
1651 | { | |
1652 | struct imon_context *ictx; | |
1653 | int intfnum = 0; | |
1654 | ||
1655 | if (!urb) | |
1656 | return; | |
1657 | ||
1658 | ictx = (struct imon_context *)urb->context; | |
1659 | if (!ictx) | |
1660 | return; | |
1661 | ||
1662 | switch (urb->status) { | |
1663 | case -ENOENT: /* usbcore unlink successful! */ | |
1664 | return; | |
1665 | ||
1666 | case -ESHUTDOWN: /* transport endpoint was shut down */ | |
1667 | break; | |
1668 | ||
1669 | case 0: | |
1670 | imon_incoming_packet(ictx, urb, intfnum); | |
1671 | break; | |
1672 | ||
1673 | default: | |
1674 | dev_warn(ictx->dev, "imon %s: status(%d): ignored\n", | |
1675 | __func__, urb->status); | |
1676 | break; | |
1677 | } | |
1678 | ||
1679 | usb_submit_urb(ictx->rx_urb_intf0, GFP_ATOMIC); | |
1680 | } | |
1681 | ||
1682 | static void usb_rx_callback_intf1(struct urb *urb) | |
1683 | { | |
1684 | struct imon_context *ictx; | |
1685 | int intfnum = 1; | |
1686 | ||
1687 | if (!urb) | |
1688 | return; | |
1689 | ||
1690 | ictx = (struct imon_context *)urb->context; | |
1691 | if (!ictx) | |
1692 | return; | |
1693 | ||
1694 | switch (urb->status) { | |
1695 | case -ENOENT: /* usbcore unlink successful! */ | |
1696 | return; | |
1697 | ||
1698 | case -ESHUTDOWN: /* transport endpoint was shut down */ | |
1699 | break; | |
1700 | ||
1701 | case 0: | |
1702 | imon_incoming_packet(ictx, urb, intfnum); | |
1703 | break; | |
1704 | ||
1705 | default: | |
1706 | dev_warn(ictx->dev, "imon %s: status(%d): ignored\n", | |
1707 | __func__, urb->status); | |
1708 | break; | |
1709 | } | |
1710 | ||
1711 | usb_submit_urb(ictx->rx_urb_intf1, GFP_ATOMIC); | |
1712 | } | |
1713 | ||
04292fc0 JW |
1714 | /* |
1715 | * The 0x15c2:0xffdc device ID was used for umpteen different imon | |
1716 | * devices, and all of them constantly spew interrupts, even when there | |
1717 | * is no actual data to report. However, byte 6 of this buffer looks like | |
1718 | * its unique across device variants, so we're trying to key off that to | |
1719 | * figure out which display type (if any) and what IR protocol the device | |
1720 | * actually supports. These devices have their IR protocol hard-coded into | |
1721 | * their firmware, they can't be changed on the fly like the newer hardware. | |
1722 | */ | |
1723 | static void imon_get_ffdc_type(struct imon_context *ictx) | |
1724 | { | |
1725 | u8 ffdc_cfg_byte = ictx->usb_rx_buf[6]; | |
1726 | u8 detected_display_type = IMON_DISPLAY_TYPE_NONE; | |
52b66144 | 1727 | u64 allowed_protos = RC_TYPE_OTHER; |
04292fc0 JW |
1728 | |
1729 | switch (ffdc_cfg_byte) { | |
1730 | /* iMON Knob, no display, iMON IR + vol knob */ | |
1731 | case 0x21: | |
1732 | dev_info(ictx->dev, "0xffdc iMON Knob, iMON IR"); | |
1733 | ictx->display_supported = false; | |
1734 | break; | |
1735 | /* iMON 2.4G LT (usb stick), no display, iMON RF */ | |
1736 | case 0x4e: | |
1737 | dev_info(ictx->dev, "0xffdc iMON 2.4G LT, iMON RF"); | |
1738 | ictx->display_supported = false; | |
1739 | ictx->rf_device = true; | |
1740 | break; | |
1741 | /* iMON VFD, no IR (does have vol knob tho) */ | |
1742 | case 0x35: | |
1743 | dev_info(ictx->dev, "0xffdc iMON VFD + knob, no IR"); | |
1744 | detected_display_type = IMON_DISPLAY_TYPE_VFD; | |
1745 | break; | |
1746 | /* iMON VFD, iMON IR */ | |
1747 | case 0x24: | |
1748 | case 0x85: | |
1749 | dev_info(ictx->dev, "0xffdc iMON VFD, iMON IR"); | |
1750 | detected_display_type = IMON_DISPLAY_TYPE_VFD; | |
1751 | break; | |
1752 | /* iMON VFD, MCE IR */ | |
443b3919 | 1753 | case 0x46: |
842071c9 | 1754 | case 0x7e: |
04292fc0 JW |
1755 | case 0x9e: |
1756 | dev_info(ictx->dev, "0xffdc iMON VFD, MCE IR"); | |
1757 | detected_display_type = IMON_DISPLAY_TYPE_VFD; | |
52b66144 | 1758 | allowed_protos = RC_TYPE_RC6; |
04292fc0 JW |
1759 | break; |
1760 | /* iMON LCD, MCE IR */ | |
1761 | case 0x9f: | |
1762 | dev_info(ictx->dev, "0xffdc iMON LCD, MCE IR"); | |
1763 | detected_display_type = IMON_DISPLAY_TYPE_LCD; | |
52b66144 | 1764 | allowed_protos = RC_TYPE_RC6; |
04292fc0 JW |
1765 | break; |
1766 | default: | |
1767 | dev_info(ictx->dev, "Unknown 0xffdc device, " | |
1768 | "defaulting to VFD and iMON IR"); | |
1769 | detected_display_type = IMON_DISPLAY_TYPE_VFD; | |
372b4249 JW |
1770 | /* We don't know which one it is, allow user to set the |
1771 | * RC6 one from userspace if OTHER wasn't correct. */ | |
1772 | allowed_protos |= RC_TYPE_RC6; | |
04292fc0 JW |
1773 | break; |
1774 | } | |
1775 | ||
1776 | printk(KERN_CONT " (id 0x%02x)\n", ffdc_cfg_byte); | |
1777 | ||
1778 | ictx->display_type = detected_display_type; | |
52b66144 | 1779 | ictx->rc_type = allowed_protos; |
04292fc0 JW |
1780 | } |
1781 | ||
1782 | static void imon_set_display_type(struct imon_context *ictx) | |
1783 | { | |
1784 | u8 configured_display_type = IMON_DISPLAY_TYPE_VFD; | |
1785 | ||
1786 | /* | |
1787 | * Try to auto-detect the type of display if the user hasn't set | |
1788 | * it by hand via the display_type modparam. Default is VFD. | |
1789 | */ | |
1790 | ||
1791 | if (display_type == IMON_DISPLAY_TYPE_AUTO) { | |
1792 | switch (ictx->product) { | |
1793 | case 0xffdc: | |
1794 | /* set in imon_get_ffdc_type() */ | |
1795 | configured_display_type = ictx->display_type; | |
1796 | break; | |
1797 | case 0x0034: | |
1798 | case 0x0035: | |
1799 | configured_display_type = IMON_DISPLAY_TYPE_VGA; | |
1800 | break; | |
1801 | case 0x0038: | |
1802 | case 0x0039: | |
1803 | case 0x0045: | |
1804 | configured_display_type = IMON_DISPLAY_TYPE_LCD; | |
1805 | break; | |
1806 | case 0x003c: | |
1807 | case 0x0041: | |
1808 | case 0x0042: | |
1809 | case 0x0043: | |
1810 | configured_display_type = IMON_DISPLAY_TYPE_NONE; | |
1811 | ictx->display_supported = false; | |
1812 | break; | |
1813 | case 0x0036: | |
1814 | case 0x0044: | |
1815 | default: | |
1816 | configured_display_type = IMON_DISPLAY_TYPE_VFD; | |
1817 | break; | |
1818 | } | |
1819 | } else { | |
1820 | configured_display_type = display_type; | |
1821 | if (display_type == IMON_DISPLAY_TYPE_NONE) | |
1822 | ictx->display_supported = false; | |
1823 | else | |
1824 | ictx->display_supported = true; | |
1825 | dev_info(ictx->dev, "%s: overriding display type to %d via " | |
1826 | "modparam\n", __func__, display_type); | |
1827 | } | |
1828 | ||
1829 | ictx->display_type = configured_display_type; | |
1830 | } | |
1831 | ||
d8b4b582 | 1832 | static struct rc_dev *imon_init_rdev(struct imon_context *ictx) |
eaf2bcc9 | 1833 | { |
d8b4b582 | 1834 | struct rc_dev *rdev; |
eaf2bcc9 | 1835 | int ret; |
04292fc0 JW |
1836 | const unsigned char fp_packet[] = { 0x40, 0x00, 0x00, 0x00, |
1837 | 0x00, 0x00, 0x00, 0x88 }; | |
eaf2bcc9 | 1838 | |
d8b4b582 DH |
1839 | rdev = rc_allocate_device(); |
1840 | if (!rdev) { | |
eaf2bcc9 DH |
1841 | dev_err(ictx->dev, "remote control dev allocation failed\n"); |
1842 | goto out; | |
1843 | } | |
1844 | ||
1845 | snprintf(ictx->name_rdev, sizeof(ictx->name_rdev), | |
1846 | "iMON Remote (%04x:%04x)", ictx->vendor, ictx->product); | |
1847 | usb_make_path(ictx->usbdev_intf0, ictx->phys_rdev, | |
1848 | sizeof(ictx->phys_rdev)); | |
1849 | strlcat(ictx->phys_rdev, "/input0", sizeof(ictx->phys_rdev)); | |
1850 | ||
d8b4b582 DH |
1851 | rdev->input_name = ictx->name_rdev; |
1852 | rdev->input_phys = ictx->phys_rdev; | |
1853 | usb_to_input_id(ictx->usbdev_intf0, &rdev->input_id); | |
eaf2bcc9 | 1854 | rdev->dev.parent = ictx->dev; |
eaf2bcc9 | 1855 | |
d8b4b582 DH |
1856 | rdev->priv = ictx; |
1857 | rdev->driver_type = RC_DRIVER_SCANCODE; | |
52b66144 | 1858 | rdev->allowed_protos = RC_TYPE_OTHER | RC_TYPE_RC6; /* iMON PAD or MCE */ |
d8b4b582 DH |
1859 | rdev->change_protocol = imon_ir_change_protocol; |
1860 | rdev->driver_name = MOD_NAME; | |
eaf2bcc9 | 1861 | |
04292fc0 JW |
1862 | /* Enable front-panel buttons and/or knobs */ |
1863 | memcpy(ictx->usb_tx_buf, &fp_packet, sizeof(fp_packet)); | |
1864 | ret = send_packet(ictx); | |
1865 | /* Not fatal, but warn about it */ | |
1866 | if (ret) | |
1867 | dev_info(ictx->dev, "panel buttons/knobs setup failed\n"); | |
1868 | ||
7d2edfc2 | 1869 | if (ictx->product == 0xffdc) { |
04292fc0 | 1870 | imon_get_ffdc_type(ictx); |
7d2edfc2 JW |
1871 | rdev->allowed_protos = ictx->rc_type; |
1872 | } | |
04292fc0 JW |
1873 | |
1874 | imon_set_display_type(ictx); | |
1875 | ||
7d2edfc2 JW |
1876 | if (ictx->rc_type == RC_TYPE_RC6) |
1877 | rdev->map_name = RC_MAP_IMON_MCE; | |
1878 | else | |
1879 | rdev->map_name = RC_MAP_IMON_PAD; | |
1880 | ||
d8b4b582 | 1881 | ret = rc_register_device(rdev); |
eaf2bcc9 DH |
1882 | if (ret < 0) { |
1883 | dev_err(ictx->dev, "remote input dev register failed\n"); | |
1884 | goto out; | |
1885 | } | |
1886 | ||
1887 | return rdev; | |
1888 | ||
1889 | out: | |
d8b4b582 | 1890 | rc_free_device(rdev); |
eaf2bcc9 DH |
1891 | return NULL; |
1892 | } | |
1893 | ||
21677cfc JW |
1894 | static struct input_dev *imon_init_idev(struct imon_context *ictx) |
1895 | { | |
1896 | struct input_dev *idev; | |
21677cfc | 1897 | int ret, i; |
21677cfc JW |
1898 | |
1899 | idev = input_allocate_device(); | |
1900 | if (!idev) { | |
eaf2bcc9 DH |
1901 | dev_err(ictx->dev, "input dev allocation failed\n"); |
1902 | goto out; | |
21677cfc JW |
1903 | } |
1904 | ||
21677cfc | 1905 | snprintf(ictx->name_idev, sizeof(ictx->name_idev), |
eaf2bcc9 DH |
1906 | "iMON Panel, Knob and Mouse(%04x:%04x)", |
1907 | ictx->vendor, ictx->product); | |
21677cfc JW |
1908 | idev->name = ictx->name_idev; |
1909 | ||
1910 | usb_make_path(ictx->usbdev_intf0, ictx->phys_idev, | |
1911 | sizeof(ictx->phys_idev)); | |
eaf2bcc9 | 1912 | strlcat(ictx->phys_idev, "/input1", sizeof(ictx->phys_idev)); |
21677cfc JW |
1913 | idev->phys = ictx->phys_idev; |
1914 | ||
db190fc1 | 1915 | idev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP) | BIT_MASK(EV_REL); |
21677cfc JW |
1916 | |
1917 | idev->keybit[BIT_WORD(BTN_MOUSE)] = | |
1918 | BIT_MASK(BTN_LEFT) | BIT_MASK(BTN_RIGHT); | |
1919 | idev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y) | | |
1920 | BIT_MASK(REL_WHEEL); | |
1921 | ||
1922 | /* panel and/or knob code support */ | |
1923 | for (i = 0; i < ARRAY_SIZE(imon_panel_key_table); i++) { | |
1924 | u32 kc = imon_panel_key_table[i].keycode; | |
1925 | __set_bit(kc, idev->keybit); | |
1926 | } | |
1927 | ||
21677cfc JW |
1928 | usb_to_input_id(ictx->usbdev_intf0, &idev->id); |
1929 | idev->dev.parent = ictx->dev; | |
eaf2bcc9 | 1930 | input_set_drvdata(idev, ictx); |
21677cfc | 1931 | |
eaf2bcc9 | 1932 | ret = input_register_device(idev); |
21677cfc | 1933 | if (ret < 0) { |
eaf2bcc9 DH |
1934 | dev_err(ictx->dev, "input dev register failed\n"); |
1935 | goto out; | |
21677cfc JW |
1936 | } |
1937 | ||
1938 | return idev; | |
1939 | ||
eaf2bcc9 | 1940 | out: |
21677cfc | 1941 | input_free_device(idev); |
21677cfc JW |
1942 | return NULL; |
1943 | } | |
1944 | ||
1945 | static struct input_dev *imon_init_touch(struct imon_context *ictx) | |
1946 | { | |
1947 | struct input_dev *touch; | |
1948 | int ret; | |
1949 | ||
1950 | touch = input_allocate_device(); | |
1951 | if (!touch) { | |
1952 | dev_err(ictx->dev, "touchscreen input dev allocation failed\n"); | |
1953 | goto touch_alloc_failed; | |
1954 | } | |
1955 | ||
1956 | snprintf(ictx->name_touch, sizeof(ictx->name_touch), | |
1957 | "iMON USB Touchscreen (%04x:%04x)", | |
1958 | ictx->vendor, ictx->product); | |
1959 | touch->name = ictx->name_touch; | |
1960 | ||
1961 | usb_make_path(ictx->usbdev_intf1, ictx->phys_touch, | |
1962 | sizeof(ictx->phys_touch)); | |
eaf2bcc9 | 1963 | strlcat(ictx->phys_touch, "/input2", sizeof(ictx->phys_touch)); |
21677cfc JW |
1964 | touch->phys = ictx->phys_touch; |
1965 | ||
1966 | touch->evbit[0] = | |
1967 | BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS); | |
1968 | touch->keybit[BIT_WORD(BTN_TOUCH)] = | |
1969 | BIT_MASK(BTN_TOUCH); | |
1970 | input_set_abs_params(touch, ABS_X, | |
1971 | 0x00, 0xfff, 0, 0); | |
1972 | input_set_abs_params(touch, ABS_Y, | |
1973 | 0x00, 0xfff, 0, 0); | |
1974 | ||
1975 | input_set_drvdata(touch, ictx); | |
1976 | ||
1977 | usb_to_input_id(ictx->usbdev_intf1, &touch->id); | |
1978 | touch->dev.parent = ictx->dev; | |
1979 | ret = input_register_device(touch); | |
1980 | if (ret < 0) { | |
1981 | dev_info(ictx->dev, "touchscreen input dev register failed\n"); | |
1982 | goto touch_register_failed; | |
1983 | } | |
1984 | ||
1985 | return touch; | |
1986 | ||
1987 | touch_register_failed: | |
aeb35ebc | 1988 | input_free_device(touch); |
21677cfc JW |
1989 | |
1990 | touch_alloc_failed: | |
1991 | return NULL; | |
1992 | } | |
1993 | ||
1994 | static bool imon_find_endpoints(struct imon_context *ictx, | |
1995 | struct usb_host_interface *iface_desc) | |
1996 | { | |
1997 | struct usb_endpoint_descriptor *ep; | |
1998 | struct usb_endpoint_descriptor *rx_endpoint = NULL; | |
1999 | struct usb_endpoint_descriptor *tx_endpoint = NULL; | |
2000 | int ifnum = iface_desc->desc.bInterfaceNumber; | |
2001 | int num_endpts = iface_desc->desc.bNumEndpoints; | |
2002 | int i, ep_dir, ep_type; | |
f789bf40 JW |
2003 | bool ir_ep_found = false; |
2004 | bool display_ep_found = false; | |
2005 | bool tx_control = false; | |
21677cfc JW |
2006 | |
2007 | /* | |
2008 | * Scan the endpoint list and set: | |
2009 | * first input endpoint = IR endpoint | |
2010 | * first output endpoint = display endpoint | |
2011 | */ | |
2012 | for (i = 0; i < num_endpts && !(ir_ep_found && display_ep_found); ++i) { | |
2013 | ep = &iface_desc->endpoint[i].desc; | |
2014 | ep_dir = ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK; | |
2015 | ep_type = ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK; | |
2016 | ||
2017 | if (!ir_ep_found && ep_dir == USB_DIR_IN && | |
2018 | ep_type == USB_ENDPOINT_XFER_INT) { | |
2019 | ||
2020 | rx_endpoint = ep; | |
f789bf40 | 2021 | ir_ep_found = true; |
21677cfc JW |
2022 | dev_dbg(ictx->dev, "%s: found IR endpoint\n", __func__); |
2023 | ||
2024 | } else if (!display_ep_found && ep_dir == USB_DIR_OUT && | |
2025 | ep_type == USB_ENDPOINT_XFER_INT) { | |
2026 | tx_endpoint = ep; | |
f789bf40 | 2027 | display_ep_found = true; |
21677cfc JW |
2028 | dev_dbg(ictx->dev, "%s: found display endpoint\n", __func__); |
2029 | } | |
2030 | } | |
2031 | ||
2032 | if (ifnum == 0) { | |
2033 | ictx->rx_endpoint_intf0 = rx_endpoint; | |
2034 | /* | |
2035 | * tx is used to send characters to lcd/vfd, associate RF | |
2036 | * remotes, set IR protocol, and maybe more... | |
2037 | */ | |
2038 | ictx->tx_endpoint = tx_endpoint; | |
2039 | } else { | |
2040 | ictx->rx_endpoint_intf1 = rx_endpoint; | |
2041 | } | |
2042 | ||
2043 | /* | |
2044 | * If we didn't find a display endpoint, this is probably one of the | |
2045 | * newer iMON devices that use control urb instead of interrupt | |
2046 | */ | |
2047 | if (!display_ep_found) { | |
f789bf40 JW |
2048 | tx_control = true; |
2049 | display_ep_found = true; | |
21677cfc JW |
2050 | dev_dbg(ictx->dev, "%s: device uses control endpoint, not " |
2051 | "interface OUT endpoint\n", __func__); | |
2052 | } | |
2053 | ||
2054 | /* | |
2055 | * Some iMON receivers have no display. Unfortunately, it seems | |
2056 | * that SoundGraph recycles device IDs between devices both with | |
2057 | * and without... :\ | |
2058 | */ | |
2059 | if (ictx->display_type == IMON_DISPLAY_TYPE_NONE) { | |
f789bf40 | 2060 | display_ep_found = false; |
21677cfc JW |
2061 | dev_dbg(ictx->dev, "%s: device has no display\n", __func__); |
2062 | } | |
2063 | ||
2064 | /* | |
2065 | * iMON Touch devices have a VGA touchscreen, but no "display", as | |
2066 | * that refers to e.g. /dev/lcd0 (a character device LCD or VFD). | |
2067 | */ | |
2068 | if (ictx->display_type == IMON_DISPLAY_TYPE_VGA) { | |
f789bf40 | 2069 | display_ep_found = false; |
21677cfc JW |
2070 | dev_dbg(ictx->dev, "%s: iMON Touch device found\n", __func__); |
2071 | } | |
2072 | ||
2073 | /* Input endpoint is mandatory */ | |
2074 | if (!ir_ep_found) | |
e2302501 | 2075 | pr_err("no valid input (IR) endpoint found\n"); |
21677cfc JW |
2076 | |
2077 | ictx->tx_control = tx_control; | |
2078 | ||
2079 | if (display_ep_found) | |
2080 | ictx->display_supported = true; | |
2081 | ||
2082 | return ir_ep_found; | |
2083 | ||
2084 | } | |
2085 | ||
2086 | static struct imon_context *imon_init_intf0(struct usb_interface *intf) | |
2087 | { | |
2088 | struct imon_context *ictx; | |
2089 | struct urb *rx_urb; | |
2090 | struct urb *tx_urb; | |
2091 | struct device *dev = &intf->dev; | |
2092 | struct usb_host_interface *iface_desc; | |
1f71baef | 2093 | int ret = -ENOMEM; |
21677cfc JW |
2094 | |
2095 | ictx = kzalloc(sizeof(struct imon_context), GFP_KERNEL); | |
2096 | if (!ictx) { | |
2097 | dev_err(dev, "%s: kzalloc failed for context", __func__); | |
2098 | goto exit; | |
2099 | } | |
2100 | rx_urb = usb_alloc_urb(0, GFP_KERNEL); | |
2101 | if (!rx_urb) { | |
2102 | dev_err(dev, "%s: usb_alloc_urb failed for IR urb", __func__); | |
2103 | goto rx_urb_alloc_failed; | |
2104 | } | |
2105 | tx_urb = usb_alloc_urb(0, GFP_KERNEL); | |
2106 | if (!tx_urb) { | |
2107 | dev_err(dev, "%s: usb_alloc_urb failed for display urb", | |
2108 | __func__); | |
2109 | goto tx_urb_alloc_failed; | |
2110 | } | |
2111 | ||
2112 | mutex_init(&ictx->lock); | |
693508df | 2113 | spin_lock_init(&ictx->kc_lock); |
21677cfc JW |
2114 | |
2115 | mutex_lock(&ictx->lock); | |
2116 | ||
2117 | ictx->dev = dev; | |
2118 | ictx->usbdev_intf0 = usb_get_dev(interface_to_usbdev(intf)); | |
f789bf40 | 2119 | ictx->dev_present_intf0 = true; |
21677cfc JW |
2120 | ictx->rx_urb_intf0 = rx_urb; |
2121 | ictx->tx_urb = tx_urb; | |
bbe4690f | 2122 | ictx->rf_device = false; |
21677cfc JW |
2123 | |
2124 | ictx->vendor = le16_to_cpu(ictx->usbdev_intf0->descriptor.idVendor); | |
2125 | ictx->product = le16_to_cpu(ictx->usbdev_intf0->descriptor.idProduct); | |
2126 | ||
1f71baef | 2127 | ret = -ENODEV; |
21677cfc | 2128 | iface_desc = intf->cur_altsetting; |
1f71baef | 2129 | if (!imon_find_endpoints(ictx, iface_desc)) { |
21677cfc | 2130 | goto find_endpoint_failed; |
1f71baef | 2131 | } |
21677cfc | 2132 | |
21677cfc JW |
2133 | usb_fill_int_urb(ictx->rx_urb_intf0, ictx->usbdev_intf0, |
2134 | usb_rcvintpipe(ictx->usbdev_intf0, | |
2135 | ictx->rx_endpoint_intf0->bEndpointAddress), | |
2136 | ictx->usb_rx_buf, sizeof(ictx->usb_rx_buf), | |
2137 | usb_rx_callback_intf0, ictx, | |
2138 | ictx->rx_endpoint_intf0->bInterval); | |
2139 | ||
2140 | ret = usb_submit_urb(ictx->rx_urb_intf0, GFP_KERNEL); | |
2141 | if (ret) { | |
e2302501 | 2142 | pr_err("usb_submit_urb failed for intf0 (%d)\n", ret); |
21677cfc JW |
2143 | goto urb_submit_failed; |
2144 | } | |
2145 | ||
9ad77eb5 JW |
2146 | ictx->idev = imon_init_idev(ictx); |
2147 | if (!ictx->idev) { | |
2148 | dev_err(dev, "%s: input device setup failed\n", __func__); | |
2149 | goto idev_setup_failed; | |
2150 | } | |
2151 | ||
2152 | ictx->rdev = imon_init_rdev(ictx); | |
2153 | if (!ictx->rdev) { | |
2154 | dev_err(dev, "%s: rc device setup failed\n", __func__); | |
2155 | goto rdev_setup_failed; | |
2156 | } | |
2157 | ||
23ef710e | 2158 | mutex_unlock(&ictx->lock); |
21677cfc JW |
2159 | return ictx; |
2160 | ||
eaf2bcc9 DH |
2161 | rdev_setup_failed: |
2162 | input_unregister_device(ictx->idev); | |
21677cfc | 2163 | idev_setup_failed: |
9ad77eb5 JW |
2164 | usb_kill_urb(ictx->rx_urb_intf0); |
2165 | urb_submit_failed: | |
21677cfc JW |
2166 | find_endpoint_failed: |
2167 | mutex_unlock(&ictx->lock); | |
2168 | usb_free_urb(tx_urb); | |
2169 | tx_urb_alloc_failed: | |
2170 | usb_free_urb(rx_urb); | |
2171 | rx_urb_alloc_failed: | |
2172 | kfree(ictx); | |
2173 | exit: | |
2174 | dev_err(dev, "unable to initialize intf0, err %d\n", ret); | |
2175 | ||
2176 | return NULL; | |
2177 | } | |
2178 | ||
2179 | static struct imon_context *imon_init_intf1(struct usb_interface *intf, | |
2180 | struct imon_context *ictx) | |
2181 | { | |
2182 | struct urb *rx_urb; | |
2183 | struct usb_host_interface *iface_desc; | |
1f71baef | 2184 | int ret = -ENOMEM; |
21677cfc JW |
2185 | |
2186 | rx_urb = usb_alloc_urb(0, GFP_KERNEL); | |
2187 | if (!rx_urb) { | |
e2302501 | 2188 | pr_err("usb_alloc_urb failed for IR urb\n"); |
21677cfc JW |
2189 | goto rx_urb_alloc_failed; |
2190 | } | |
2191 | ||
2192 | mutex_lock(&ictx->lock); | |
2193 | ||
2194 | if (ictx->display_type == IMON_DISPLAY_TYPE_VGA) { | |
2195 | init_timer(&ictx->ttimer); | |
2196 | ictx->ttimer.data = (unsigned long)ictx; | |
2197 | ictx->ttimer.function = imon_touch_display_timeout; | |
2198 | } | |
2199 | ||
2200 | ictx->usbdev_intf1 = usb_get_dev(interface_to_usbdev(intf)); | |
f789bf40 | 2201 | ictx->dev_present_intf1 = true; |
21677cfc JW |
2202 | ictx->rx_urb_intf1 = rx_urb; |
2203 | ||
1f71baef | 2204 | ret = -ENODEV; |
21677cfc JW |
2205 | iface_desc = intf->cur_altsetting; |
2206 | if (!imon_find_endpoints(ictx, iface_desc)) | |
2207 | goto find_endpoint_failed; | |
2208 | ||
2209 | if (ictx->display_type == IMON_DISPLAY_TYPE_VGA) { | |
2210 | ictx->touch = imon_init_touch(ictx); | |
2211 | if (!ictx->touch) | |
2212 | goto touch_setup_failed; | |
2213 | } else | |
2214 | ictx->touch = NULL; | |
2215 | ||
2216 | usb_fill_int_urb(ictx->rx_urb_intf1, ictx->usbdev_intf1, | |
2217 | usb_rcvintpipe(ictx->usbdev_intf1, | |
2218 | ictx->rx_endpoint_intf1->bEndpointAddress), | |
2219 | ictx->usb_rx_buf, sizeof(ictx->usb_rx_buf), | |
2220 | usb_rx_callback_intf1, ictx, | |
2221 | ictx->rx_endpoint_intf1->bInterval); | |
2222 | ||
2223 | ret = usb_submit_urb(ictx->rx_urb_intf1, GFP_KERNEL); | |
2224 | ||
2225 | if (ret) { | |
e2302501 | 2226 | pr_err("usb_submit_urb failed for intf1 (%d)\n", ret); |
21677cfc JW |
2227 | goto urb_submit_failed; |
2228 | } | |
2229 | ||
23ef710e | 2230 | mutex_unlock(&ictx->lock); |
21677cfc JW |
2231 | return ictx; |
2232 | ||
2233 | urb_submit_failed: | |
20cd1959 | 2234 | if (ictx->touch) |
21677cfc | 2235 | input_unregister_device(ictx->touch); |
21677cfc JW |
2236 | touch_setup_failed: |
2237 | find_endpoint_failed: | |
2238 | mutex_unlock(&ictx->lock); | |
2239 | usb_free_urb(rx_urb); | |
2240 | rx_urb_alloc_failed: | |
2241 | dev_err(ictx->dev, "unable to initialize intf0, err %d\n", ret); | |
2242 | ||
2243 | return NULL; | |
2244 | } | |
2245 | ||
21677cfc JW |
2246 | static void imon_init_display(struct imon_context *ictx, |
2247 | struct usb_interface *intf) | |
2248 | { | |
2249 | int ret; | |
2250 | ||
2251 | dev_dbg(ictx->dev, "Registering iMON display with sysfs\n"); | |
2252 | ||
2253 | /* set up sysfs entry for built-in clock */ | |
6aa209e4 | 2254 | ret = sysfs_create_group(&intf->dev.kobj, &imon_display_attr_group); |
21677cfc JW |
2255 | if (ret) |
2256 | dev_err(ictx->dev, "Could not create display sysfs " | |
2257 | "entries(%d)", ret); | |
2258 | ||
2259 | if (ictx->display_type == IMON_DISPLAY_TYPE_LCD) | |
2260 | ret = usb_register_dev(intf, &imon_lcd_class); | |
2261 | else | |
2262 | ret = usb_register_dev(intf, &imon_vfd_class); | |
2263 | if (ret) | |
2264 | /* Not a fatal error, so ignore */ | |
2265 | dev_info(ictx->dev, "could not get a minor number for " | |
2266 | "display\n"); | |
2267 | ||
2268 | } | |
2269 | ||
2270 | /** | |
2271 | * Callback function for USB core API: Probe | |
2272 | */ | |
2273 | static int __devinit imon_probe(struct usb_interface *interface, | |
2274 | const struct usb_device_id *id) | |
2275 | { | |
2276 | struct usb_device *usbdev = NULL; | |
2277 | struct usb_host_interface *iface_desc = NULL; | |
2278 | struct usb_interface *first_if; | |
2279 | struct device *dev = &interface->dev; | |
76a2d21d | 2280 | int ifnum, sysfs_err; |
21677cfc JW |
2281 | int ret = 0; |
2282 | struct imon_context *ictx = NULL; | |
2283 | struct imon_context *first_if_ctx = NULL; | |
2284 | u16 vendor, product; | |
21677cfc | 2285 | |
21677cfc JW |
2286 | usbdev = usb_get_dev(interface_to_usbdev(interface)); |
2287 | iface_desc = interface->cur_altsetting; | |
2288 | ifnum = iface_desc->desc.bInterfaceNumber; | |
2289 | vendor = le16_to_cpu(usbdev->descriptor.idVendor); | |
2290 | product = le16_to_cpu(usbdev->descriptor.idProduct); | |
2291 | ||
2292 | dev_dbg(dev, "%s: found iMON device (%04x:%04x, intf%d)\n", | |
2293 | __func__, vendor, product, ifnum); | |
2294 | ||
2295 | /* prevent races probing devices w/multiple interfaces */ | |
2296 | mutex_lock(&driver_lock); | |
2297 | ||
2298 | first_if = usb_ifnum_to_if(usbdev, 0); | |
8350e155 | 2299 | first_if_ctx = usb_get_intfdata(first_if); |
21677cfc JW |
2300 | |
2301 | if (ifnum == 0) { | |
2302 | ictx = imon_init_intf0(interface); | |
2303 | if (!ictx) { | |
e2302501 | 2304 | pr_err("failed to initialize context!\n"); |
21677cfc JW |
2305 | ret = -ENODEV; |
2306 | goto fail; | |
2307 | } | |
2308 | ||
21677cfc JW |
2309 | } else { |
2310 | /* this is the secondary interface on the device */ | |
2311 | ictx = imon_init_intf1(interface, first_if_ctx); | |
2312 | if (!ictx) { | |
e2302501 | 2313 | pr_err("failed to attach to context!\n"); |
21677cfc JW |
2314 | ret = -ENODEV; |
2315 | goto fail; | |
2316 | } | |
2317 | ||
2318 | } | |
2319 | ||
2320 | usb_set_intfdata(interface, ictx); | |
2321 | ||
2322 | if (ifnum == 0) { | |
23ef710e JW |
2323 | mutex_lock(&ictx->lock); |
2324 | ||
bbe4690f JW |
2325 | if (product == 0xffdc && ictx->rf_device) { |
2326 | sysfs_err = sysfs_create_group(&interface->dev.kobj, | |
6aa209e4 | 2327 | &imon_rf_attr_group); |
bbe4690f | 2328 | if (sysfs_err) |
e2302501 JP |
2329 | pr_err("Could not create RF sysfs entries(%d)\n", |
2330 | sysfs_err); | |
bbe4690f JW |
2331 | } |
2332 | ||
21677cfc JW |
2333 | if (ictx->display_supported) |
2334 | imon_init_display(ictx, interface); | |
23ef710e JW |
2335 | |
2336 | mutex_unlock(&ictx->lock); | |
21677cfc JW |
2337 | } |
2338 | ||
21677cfc JW |
2339 | dev_info(dev, "iMON device (%04x:%04x, intf%d) on " |
2340 | "usb<%d:%d> initialized\n", vendor, product, ifnum, | |
2341 | usbdev->bus->busnum, usbdev->devnum); | |
2342 | ||
21677cfc JW |
2343 | mutex_unlock(&driver_lock); |
2344 | ||
2345 | return 0; | |
2346 | ||
2347 | fail: | |
2348 | mutex_unlock(&driver_lock); | |
2349 | dev_err(dev, "unable to register, err %d\n", ret); | |
2350 | ||
2351 | return ret; | |
2352 | } | |
2353 | ||
2354 | /** | |
2355 | * Callback function for USB core API: disconnect | |
2356 | */ | |
2357 | static void __devexit imon_disconnect(struct usb_interface *interface) | |
2358 | { | |
2359 | struct imon_context *ictx; | |
2360 | struct device *dev; | |
2361 | int ifnum; | |
2362 | ||
2363 | /* prevent races with multi-interface device probing and display_open */ | |
2364 | mutex_lock(&driver_lock); | |
2365 | ||
2366 | ictx = usb_get_intfdata(interface); | |
2367 | dev = ictx->dev; | |
2368 | ifnum = interface->cur_altsetting->desc.bInterfaceNumber; | |
2369 | ||
21677cfc JW |
2370 | /* |
2371 | * sysfs_remove_group is safe to call even if sysfs_create_group | |
2372 | * hasn't been called | |
2373 | */ | |
6aa209e4 JW |
2374 | sysfs_remove_group(&interface->dev.kobj, &imon_display_attr_group); |
2375 | sysfs_remove_group(&interface->dev.kobj, &imon_rf_attr_group); | |
21677cfc JW |
2376 | |
2377 | usb_set_intfdata(interface, NULL); | |
2378 | ||
2379 | /* Abort ongoing write */ | |
2380 | if (ictx->tx.busy) { | |
2381 | usb_kill_urb(ictx->tx_urb); | |
2382 | complete_all(&ictx->tx.finished); | |
2383 | } | |
2384 | ||
2385 | if (ifnum == 0) { | |
f789bf40 | 2386 | ictx->dev_present_intf0 = false; |
21677cfc | 2387 | usb_kill_urb(ictx->rx_urb_intf0); |
eaf2bcc9 | 2388 | input_unregister_device(ictx->idev); |
d8b4b582 | 2389 | rc_unregister_device(ictx->rdev); |
21677cfc JW |
2390 | if (ictx->display_supported) { |
2391 | if (ictx->display_type == IMON_DISPLAY_TYPE_LCD) | |
2392 | usb_deregister_dev(interface, &imon_lcd_class); | |
76a2d21d | 2393 | else if (ictx->display_type == IMON_DISPLAY_TYPE_VFD) |
21677cfc JW |
2394 | usb_deregister_dev(interface, &imon_vfd_class); |
2395 | } | |
2396 | } else { | |
f789bf40 | 2397 | ictx->dev_present_intf1 = false; |
21677cfc | 2398 | usb_kill_urb(ictx->rx_urb_intf1); |
76a2d21d | 2399 | if (ictx->display_type == IMON_DISPLAY_TYPE_VGA) { |
21677cfc | 2400 | input_unregister_device(ictx->touch); |
76a2d21d JW |
2401 | del_timer_sync(&ictx->ttimer); |
2402 | } | |
21677cfc JW |
2403 | } |
2404 | ||
76a2d21d JW |
2405 | if (!ictx->dev_present_intf0 && !ictx->dev_present_intf1) |
2406 | free_imon_context(ictx); | |
21677cfc JW |
2407 | |
2408 | mutex_unlock(&driver_lock); | |
2409 | ||
2410 | dev_dbg(dev, "%s: iMON device (intf%d) disconnected\n", | |
2411 | __func__, ifnum); | |
2412 | } | |
2413 | ||
2414 | static int imon_suspend(struct usb_interface *intf, pm_message_t message) | |
2415 | { | |
2416 | struct imon_context *ictx = usb_get_intfdata(intf); | |
2417 | int ifnum = intf->cur_altsetting->desc.bInterfaceNumber; | |
2418 | ||
2419 | if (ifnum == 0) | |
2420 | usb_kill_urb(ictx->rx_urb_intf0); | |
2421 | else | |
2422 | usb_kill_urb(ictx->rx_urb_intf1); | |
2423 | ||
2424 | return 0; | |
2425 | } | |
2426 | ||
2427 | static int imon_resume(struct usb_interface *intf) | |
2428 | { | |
2429 | int rc = 0; | |
2430 | struct imon_context *ictx = usb_get_intfdata(intf); | |
2431 | int ifnum = intf->cur_altsetting->desc.bInterfaceNumber; | |
2432 | ||
2433 | if (ifnum == 0) { | |
2434 | usb_fill_int_urb(ictx->rx_urb_intf0, ictx->usbdev_intf0, | |
2435 | usb_rcvintpipe(ictx->usbdev_intf0, | |
2436 | ictx->rx_endpoint_intf0->bEndpointAddress), | |
2437 | ictx->usb_rx_buf, sizeof(ictx->usb_rx_buf), | |
2438 | usb_rx_callback_intf0, ictx, | |
2439 | ictx->rx_endpoint_intf0->bInterval); | |
2440 | ||
2441 | rc = usb_submit_urb(ictx->rx_urb_intf0, GFP_ATOMIC); | |
2442 | ||
2443 | } else { | |
2444 | usb_fill_int_urb(ictx->rx_urb_intf1, ictx->usbdev_intf1, | |
2445 | usb_rcvintpipe(ictx->usbdev_intf1, | |
2446 | ictx->rx_endpoint_intf1->bEndpointAddress), | |
2447 | ictx->usb_rx_buf, sizeof(ictx->usb_rx_buf), | |
2448 | usb_rx_callback_intf1, ictx, | |
2449 | ictx->rx_endpoint_intf1->bInterval); | |
2450 | ||
2451 | rc = usb_submit_urb(ictx->rx_urb_intf1, GFP_ATOMIC); | |
2452 | } | |
2453 | ||
2454 | return rc; | |
2455 | } | |
2456 | ||
2457 | static int __init imon_init(void) | |
2458 | { | |
2459 | int rc; | |
2460 | ||
2461 | rc = usb_register(&imon_driver); | |
2462 | if (rc) { | |
e2302501 | 2463 | pr_err("usb register failed(%d)\n", rc); |
21677cfc JW |
2464 | rc = -ENODEV; |
2465 | } | |
2466 | ||
2467 | return rc; | |
2468 | } | |
2469 | ||
2470 | static void __exit imon_exit(void) | |
2471 | { | |
2472 | usb_deregister(&imon_driver); | |
2473 | } | |
2474 | ||
2475 | module_init(imon_init); | |
2476 | module_exit(imon_exit); |