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21677cfc JW |
1 | /* |
2 | * imon.c: input and display driver for SoundGraph iMON IR/VFD/LCD | |
3 | * | |
4 | * Copyright(C) 2009 Jarod Wilson <jarod@wilsonet.com> | |
5 | * Portions based on the original lirc_imon driver, | |
6 | * Copyright(C) 2004 Venky Raju(dev@venky.ws) | |
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 | ||
29 | #include <linux/errno.h> | |
30 | #include <linux/init.h> | |
31 | #include <linux/kernel.h> | |
32 | #include <linux/module.h> | |
33 | #include <linux/slab.h> | |
34 | #include <linux/uaccess.h> | |
35 | ||
36 | #include <linux/input.h> | |
37 | #include <linux/usb.h> | |
38 | #include <linux/usb/input.h> | |
39 | #include <media/ir-core.h> | |
40 | ||
41 | #include <linux/time.h> | |
42 | #include <linux/timer.h> | |
43 | ||
44 | #define MOD_AUTHOR "Jarod Wilson <jarod@wilsonet.com>" | |
45 | #define MOD_DESC "Driver for SoundGraph iMON MultiMedia IR/Display" | |
46 | #define MOD_NAME "imon" | |
47 | #define MOD_VERSION "0.9.1" | |
48 | ||
49 | #define DISPLAY_MINOR_BASE 144 | |
50 | #define DEVICE_NAME "lcd%d" | |
51 | ||
52 | #define BUF_CHUNK_SIZE 8 | |
53 | #define BUF_SIZE 128 | |
54 | ||
55 | #define BIT_DURATION 250 /* each bit received is 250us */ | |
56 | ||
57 | #define IMON_CLOCK_ENABLE_PACKETS 2 | |
21677cfc JW |
58 | |
59 | /*** P R O T O T Y P E S ***/ | |
60 | ||
61 | /* USB Callback prototypes */ | |
62 | static int imon_probe(struct usb_interface *interface, | |
63 | const struct usb_device_id *id); | |
64 | static void imon_disconnect(struct usb_interface *interface); | |
65 | static void usb_rx_callback_intf0(struct urb *urb); | |
66 | static void usb_rx_callback_intf1(struct urb *urb); | |
67 | static void usb_tx_callback(struct urb *urb); | |
68 | ||
69 | /* suspend/resume support */ | |
70 | static int imon_resume(struct usb_interface *intf); | |
71 | static int imon_suspend(struct usb_interface *intf, pm_message_t message); | |
72 | ||
73 | /* Display file_operations function prototypes */ | |
74 | static int display_open(struct inode *inode, struct file *file); | |
75 | static int display_close(struct inode *inode, struct file *file); | |
76 | ||
77 | /* VFD write operation */ | |
78 | static ssize_t vfd_write(struct file *file, const char *buf, | |
79 | size_t n_bytes, loff_t *pos); | |
80 | ||
81 | /* LCD file_operations override function prototypes */ | |
82 | static ssize_t lcd_write(struct file *file, const char *buf, | |
83 | size_t n_bytes, loff_t *pos); | |
84 | ||
85 | /*** G L O B A L S ***/ | |
86 | ||
87 | struct imon_context { | |
88 | struct device *dev; | |
89 | struct ir_dev_props *props; | |
21677cfc JW |
90 | /* Newer devices have two interfaces */ |
91 | struct usb_device *usbdev_intf0; | |
92 | struct usb_device *usbdev_intf1; | |
93 | ||
94 | bool display_supported; /* not all controllers do */ | |
95 | bool display_isopen; /* display port has been opened */ | |
bbe4690f | 96 | bool rf_device; /* true if iMON 2.4G LT/DT RF device */ |
21677cfc JW |
97 | bool rf_isassociating; /* RF remote associating */ |
98 | bool dev_present_intf0; /* USB device presence, interface 0 */ | |
99 | bool dev_present_intf1; /* USB device presence, interface 1 */ | |
100 | ||
101 | struct mutex lock; /* to lock this object */ | |
102 | wait_queue_head_t remove_ok; /* For unexpected USB disconnects */ | |
103 | ||
104 | struct usb_endpoint_descriptor *rx_endpoint_intf0; | |
105 | struct usb_endpoint_descriptor *rx_endpoint_intf1; | |
106 | struct usb_endpoint_descriptor *tx_endpoint; | |
107 | struct urb *rx_urb_intf0; | |
108 | struct urb *rx_urb_intf1; | |
109 | struct urb *tx_urb; | |
110 | bool tx_control; | |
111 | unsigned char usb_rx_buf[8]; | |
112 | unsigned char usb_tx_buf[8]; | |
113 | ||
114 | struct tx_t { | |
115 | unsigned char data_buf[35]; /* user data buffer */ | |
116 | struct completion finished; /* wait for write to finish */ | |
117 | bool busy; /* write in progress */ | |
118 | int status; /* status of tx completion */ | |
119 | } tx; | |
120 | ||
121 | u16 vendor; /* usb vendor ID */ | |
122 | u16 product; /* usb product ID */ | |
123 | ||
124 | struct input_dev *idev; /* input device for remote */ | |
125 | struct input_dev *touch; /* input device for touchscreen */ | |
126 | ||
127 | u32 kc; /* current input keycode */ | |
128 | u32 last_keycode; /* last reported input keycode */ | |
6718e8ad | 129 | u64 ir_type; /* iMON or MCE (RC6) IR protocol? */ |
21677cfc JW |
130 | u8 mce_toggle_bit; /* last mce toggle bit */ |
131 | bool release_code; /* some keys send a release code */ | |
132 | ||
133 | u8 display_type; /* store the display type */ | |
134 | bool pad_mouse; /* toggle kbd(0)/mouse(1) mode */ | |
135 | ||
136 | char name_idev[128]; /* input device name */ | |
137 | char phys_idev[64]; /* input device phys path */ | |
138 | struct timer_list itimer; /* input device timer, need for rc6 */ | |
139 | ||
140 | char name_touch[128]; /* touch screen name */ | |
141 | char phys_touch[64]; /* touch screen phys path */ | |
142 | struct timer_list ttimer; /* touch screen timer */ | |
143 | int touch_x; /* x coordinate on touchscreen */ | |
144 | int touch_y; /* y coordinate on touchscreen */ | |
145 | }; | |
146 | ||
147 | #define TOUCH_TIMEOUT (HZ/30) | |
21677cfc JW |
148 | |
149 | /* vfd character device file operations */ | |
150 | static const struct file_operations vfd_fops = { | |
151 | .owner = THIS_MODULE, | |
152 | .open = &display_open, | |
153 | .write = &vfd_write, | |
154 | .release = &display_close | |
155 | }; | |
156 | ||
157 | /* lcd character device file operations */ | |
158 | static const struct file_operations lcd_fops = { | |
159 | .owner = THIS_MODULE, | |
160 | .open = &display_open, | |
161 | .write = &lcd_write, | |
162 | .release = &display_close | |
163 | }; | |
164 | ||
165 | enum { | |
166 | IMON_DISPLAY_TYPE_AUTO = 0, | |
167 | IMON_DISPLAY_TYPE_VFD = 1, | |
168 | IMON_DISPLAY_TYPE_LCD = 2, | |
169 | IMON_DISPLAY_TYPE_VGA = 3, | |
170 | IMON_DISPLAY_TYPE_NONE = 4, | |
171 | }; | |
172 | ||
21677cfc JW |
173 | enum { |
174 | IMON_KEY_IMON = 0, | |
175 | IMON_KEY_MCE = 1, | |
176 | IMON_KEY_PANEL = 2, | |
177 | }; | |
178 | ||
179 | /* | |
180 | * USB Device ID for iMON USB Control Boards | |
181 | * | |
182 | * The Windows drivers contain 6 different inf files, more or less one for | |
183 | * each new device until the 0x0034-0x0046 devices, which all use the same | |
184 | * driver. Some of the devices in the 34-46 range haven't been definitively | |
185 | * identified yet. Early devices have either a TriGem Computer, Inc. or a | |
186 | * Samsung vendor ID (0x0aa8 and 0x04e8 respectively), while all later | |
187 | * devices use the SoundGraph vendor ID (0x15c2). This driver only supports | |
188 | * the ffdc and later devices, which do onboard decoding. | |
189 | */ | |
190 | static struct usb_device_id imon_usb_id_table[] = { | |
191 | /* | |
192 | * Several devices with this same device ID, all use iMON_PAD.inf | |
193 | * SoundGraph iMON PAD (IR & VFD) | |
194 | * SoundGraph iMON PAD (IR & LCD) | |
195 | * SoundGraph iMON Knob (IR only) | |
196 | */ | |
197 | { USB_DEVICE(0x15c2, 0xffdc) }, | |
198 | ||
199 | /* | |
200 | * Newer devices, all driven by the latest iMON Windows driver, full | |
201 | * list of device IDs extracted via 'strings Setup/data1.hdr |grep 15c2' | |
202 | * Need user input to fill in details on unknown devices. | |
203 | */ | |
204 | /* SoundGraph iMON OEM Touch LCD (IR & 7" VGA LCD) */ | |
205 | { USB_DEVICE(0x15c2, 0x0034) }, | |
206 | /* SoundGraph iMON OEM Touch LCD (IR & 4.3" VGA LCD) */ | |
207 | { USB_DEVICE(0x15c2, 0x0035) }, | |
208 | /* SoundGraph iMON OEM VFD (IR & VFD) */ | |
209 | { USB_DEVICE(0x15c2, 0x0036) }, | |
210 | /* device specifics unknown */ | |
211 | { USB_DEVICE(0x15c2, 0x0037) }, | |
212 | /* SoundGraph iMON OEM LCD (IR & LCD) */ | |
213 | { USB_DEVICE(0x15c2, 0x0038) }, | |
214 | /* SoundGraph iMON UltraBay (IR & LCD) */ | |
215 | { USB_DEVICE(0x15c2, 0x0039) }, | |
216 | /* device specifics unknown */ | |
217 | { USB_DEVICE(0x15c2, 0x003a) }, | |
218 | /* device specifics unknown */ | |
219 | { USB_DEVICE(0x15c2, 0x003b) }, | |
220 | /* SoundGraph iMON OEM Inside (IR only) */ | |
221 | { USB_DEVICE(0x15c2, 0x003c) }, | |
222 | /* device specifics unknown */ | |
223 | { USB_DEVICE(0x15c2, 0x003d) }, | |
224 | /* device specifics unknown */ | |
225 | { USB_DEVICE(0x15c2, 0x003e) }, | |
226 | /* device specifics unknown */ | |
227 | { USB_DEVICE(0x15c2, 0x003f) }, | |
228 | /* device specifics unknown */ | |
229 | { USB_DEVICE(0x15c2, 0x0040) }, | |
230 | /* SoundGraph iMON MINI (IR only) */ | |
231 | { USB_DEVICE(0x15c2, 0x0041) }, | |
232 | /* Antec Veris Multimedia Station EZ External (IR only) */ | |
233 | { USB_DEVICE(0x15c2, 0x0042) }, | |
234 | /* Antec Veris Multimedia Station Basic Internal (IR only) */ | |
235 | { USB_DEVICE(0x15c2, 0x0043) }, | |
236 | /* Antec Veris Multimedia Station Elite (IR & VFD) */ | |
237 | { USB_DEVICE(0x15c2, 0x0044) }, | |
238 | /* Antec Veris Multimedia Station Premiere (IR & LCD) */ | |
239 | { USB_DEVICE(0x15c2, 0x0045) }, | |
240 | /* device specifics unknown */ | |
241 | { USB_DEVICE(0x15c2, 0x0046) }, | |
242 | {} | |
243 | }; | |
244 | ||
245 | /* USB Device data */ | |
246 | static struct usb_driver imon_driver = { | |
247 | .name = MOD_NAME, | |
248 | .probe = imon_probe, | |
249 | .disconnect = imon_disconnect, | |
250 | .suspend = imon_suspend, | |
251 | .resume = imon_resume, | |
252 | .id_table = imon_usb_id_table, | |
253 | }; | |
254 | ||
255 | static struct usb_class_driver imon_vfd_class = { | |
256 | .name = DEVICE_NAME, | |
257 | .fops = &vfd_fops, | |
258 | .minor_base = DISPLAY_MINOR_BASE, | |
259 | }; | |
260 | ||
261 | static struct usb_class_driver imon_lcd_class = { | |
262 | .name = DEVICE_NAME, | |
263 | .fops = &lcd_fops, | |
264 | .minor_base = DISPLAY_MINOR_BASE, | |
265 | }; | |
266 | ||
267 | /* imon receiver front panel/knob key table */ | |
268 | static const struct { | |
269 | u64 hw_code; | |
270 | u32 keycode; | |
271 | } imon_panel_key_table[] = { | |
1f71baef MCC |
272 | { 0x000000000f00ffeell, KEY_PROG1 }, /* Go */ |
273 | { 0x000000001f00ffeell, KEY_AUDIO }, | |
274 | { 0x000000002000ffeell, KEY_VIDEO }, | |
275 | { 0x000000002100ffeell, KEY_CAMERA }, | |
276 | { 0x000000002700ffeell, KEY_DVD }, | |
277 | { 0x000000002300ffeell, KEY_TV }, | |
278 | { 0x000000000500ffeell, KEY_PREVIOUS }, | |
279 | { 0x000000000700ffeell, KEY_REWIND }, | |
280 | { 0x000000000400ffeell, KEY_STOP }, | |
281 | { 0x000000003c00ffeell, KEY_PLAYPAUSE }, | |
282 | { 0x000000000800ffeell, KEY_FASTFORWARD }, | |
283 | { 0x000000000600ffeell, KEY_NEXT }, | |
284 | { 0x000000010000ffeell, KEY_RIGHT }, | |
285 | { 0x000001000000ffeell, KEY_LEFT }, | |
286 | { 0x000000003d00ffeell, KEY_SELECT }, | |
287 | { 0x000100000000ffeell, KEY_VOLUMEUP }, | |
288 | { 0x010000000000ffeell, KEY_VOLUMEDOWN }, | |
289 | { 0x000000000100ffeell, KEY_MUTE }, | |
21677cfc | 290 | /* iMON Knob values */ |
1f71baef MCC |
291 | { 0x000100ffffffffeell, KEY_VOLUMEUP }, |
292 | { 0x010000ffffffffeell, KEY_VOLUMEDOWN }, | |
293 | { 0x000008ffffffffeell, KEY_MUTE }, | |
21677cfc JW |
294 | }; |
295 | ||
296 | /* to prevent races between open() and disconnect(), probing, etc */ | |
297 | static DEFINE_MUTEX(driver_lock); | |
298 | ||
299 | /* Module bookkeeping bits */ | |
300 | MODULE_AUTHOR(MOD_AUTHOR); | |
301 | MODULE_DESCRIPTION(MOD_DESC); | |
302 | MODULE_VERSION(MOD_VERSION); | |
303 | MODULE_LICENSE("GPL"); | |
304 | MODULE_DEVICE_TABLE(usb, imon_usb_id_table); | |
305 | ||
306 | static bool debug; | |
307 | module_param(debug, bool, S_IRUGO | S_IWUSR); | |
308 | MODULE_PARM_DESC(debug, "Debug messages: 0=no, 1=yes(default: no)"); | |
309 | ||
310 | /* lcd, vfd, vga or none? should be auto-detected, but can be overridden... */ | |
311 | static int display_type; | |
312 | module_param(display_type, int, S_IRUGO); | |
313 | MODULE_PARM_DESC(display_type, "Type of attached display. 0=autodetect, " | |
314 | "1=vfd, 2=lcd, 3=vga, 4=none (default: autodetect)"); | |
315 | ||
6718e8ad JW |
316 | static int pad_stabilize = 1; |
317 | module_param(pad_stabilize, int, S_IRUGO | S_IWUSR); | |
318 | MODULE_PARM_DESC(pad_stabilize, "Apply stabilization algorithm to iMON PAD " | |
319 | "presses in arrow key mode. 0=disable, 1=enable (default)."); | |
21677cfc JW |
320 | |
321 | /* | |
322 | * In certain use cases, mouse mode isn't really helpful, and could actually | |
323 | * cause confusion, so allow disabling it when the IR device is open. | |
324 | */ | |
325 | static bool nomouse; | |
326 | module_param(nomouse, bool, S_IRUGO | S_IWUSR); | |
327 | MODULE_PARM_DESC(nomouse, "Disable mouse input device mode when IR device is " | |
328 | "open. 0=don't disable, 1=disable. (default: don't disable)"); | |
329 | ||
330 | /* threshold at which a pad push registers as an arrow key in kbd mode */ | |
331 | static int pad_thresh; | |
332 | module_param(pad_thresh, int, S_IRUGO | S_IWUSR); | |
333 | MODULE_PARM_DESC(pad_thresh, "Threshold at which a pad push registers as an " | |
334 | "arrow key in kbd mode (default: 28)"); | |
335 | ||
336 | ||
337 | static void free_imon_context(struct imon_context *ictx) | |
338 | { | |
339 | struct device *dev = ictx->dev; | |
340 | ||
341 | usb_free_urb(ictx->tx_urb); | |
342 | usb_free_urb(ictx->rx_urb_intf0); | |
343 | usb_free_urb(ictx->rx_urb_intf1); | |
344 | kfree(ictx); | |
345 | ||
346 | dev_dbg(dev, "%s: iMON context freed\n", __func__); | |
347 | } | |
348 | ||
349 | /** | |
350 | * Called when the Display device (e.g. /dev/lcd0) | |
351 | * is opened by the application. | |
352 | */ | |
353 | static int display_open(struct inode *inode, struct file *file) | |
354 | { | |
355 | struct usb_interface *interface; | |
356 | struct imon_context *ictx = NULL; | |
357 | int subminor; | |
358 | int retval = 0; | |
359 | ||
360 | /* prevent races with disconnect */ | |
361 | mutex_lock(&driver_lock); | |
362 | ||
363 | subminor = iminor(inode); | |
364 | interface = usb_find_interface(&imon_driver, subminor); | |
365 | if (!interface) { | |
366 | err("%s: could not find interface for minor %d", | |
367 | __func__, subminor); | |
368 | retval = -ENODEV; | |
369 | goto exit; | |
370 | } | |
371 | ictx = usb_get_intfdata(interface); | |
372 | ||
373 | if (!ictx) { | |
374 | err("%s: no context found for minor %d", __func__, subminor); | |
375 | retval = -ENODEV; | |
376 | goto exit; | |
377 | } | |
378 | ||
379 | mutex_lock(&ictx->lock); | |
380 | ||
381 | if (!ictx->display_supported) { | |
382 | err("%s: display not supported by device", __func__); | |
383 | retval = -ENODEV; | |
384 | } else if (ictx->display_isopen) { | |
385 | err("%s: display port is already open", __func__); | |
386 | retval = -EBUSY; | |
387 | } else { | |
f789bf40 | 388 | ictx->display_isopen = true; |
21677cfc JW |
389 | file->private_data = ictx; |
390 | dev_dbg(ictx->dev, "display port opened\n"); | |
391 | } | |
392 | ||
393 | mutex_unlock(&ictx->lock); | |
394 | ||
395 | exit: | |
396 | mutex_unlock(&driver_lock); | |
397 | return retval; | |
398 | } | |
399 | ||
400 | /** | |
401 | * Called when the display device (e.g. /dev/lcd0) | |
402 | * is closed by the application. | |
403 | */ | |
404 | static int display_close(struct inode *inode, struct file *file) | |
405 | { | |
406 | struct imon_context *ictx = NULL; | |
407 | int retval = 0; | |
408 | ||
abf84383 | 409 | ictx = file->private_data; |
21677cfc JW |
410 | |
411 | if (!ictx) { | |
412 | err("%s: no context for device", __func__); | |
413 | return -ENODEV; | |
414 | } | |
415 | ||
416 | mutex_lock(&ictx->lock); | |
417 | ||
418 | if (!ictx->display_supported) { | |
419 | err("%s: display not supported by device", __func__); | |
420 | retval = -ENODEV; | |
421 | } else if (!ictx->display_isopen) { | |
422 | err("%s: display is not open", __func__); | |
423 | retval = -EIO; | |
424 | } else { | |
f789bf40 | 425 | ictx->display_isopen = false; |
21677cfc JW |
426 | dev_dbg(ictx->dev, "display port closed\n"); |
427 | if (!ictx->dev_present_intf0) { | |
428 | /* | |
429 | * Device disconnected before close and IR port is not | |
430 | * open. If IR port is open, context will be deleted by | |
431 | * ir_close. | |
432 | */ | |
433 | mutex_unlock(&ictx->lock); | |
434 | free_imon_context(ictx); | |
435 | return retval; | |
436 | } | |
437 | } | |
438 | ||
439 | mutex_unlock(&ictx->lock); | |
440 | return retval; | |
441 | } | |
442 | ||
443 | /** | |
444 | * Sends a packet to the device -- this function must be called | |
445 | * with ictx->lock held. | |
446 | */ | |
447 | static int send_packet(struct imon_context *ictx) | |
448 | { | |
449 | unsigned int pipe; | |
450 | unsigned long timeout; | |
451 | int interval = 0; | |
452 | int retval = 0; | |
453 | struct usb_ctrlrequest *control_req = NULL; | |
454 | ||
455 | /* Check if we need to use control or interrupt urb */ | |
456 | if (!ictx->tx_control) { | |
457 | pipe = usb_sndintpipe(ictx->usbdev_intf0, | |
458 | ictx->tx_endpoint->bEndpointAddress); | |
459 | interval = ictx->tx_endpoint->bInterval; | |
460 | ||
461 | usb_fill_int_urb(ictx->tx_urb, ictx->usbdev_intf0, pipe, | |
462 | ictx->usb_tx_buf, | |
463 | sizeof(ictx->usb_tx_buf), | |
464 | usb_tx_callback, ictx, interval); | |
465 | ||
466 | ictx->tx_urb->actual_length = 0; | |
467 | } else { | |
468 | /* fill request into kmalloc'ed space: */ | |
469 | control_req = kmalloc(sizeof(struct usb_ctrlrequest), | |
470 | GFP_KERNEL); | |
471 | if (control_req == NULL) | |
472 | return -ENOMEM; | |
473 | ||
474 | /* setup packet is '21 09 0200 0001 0008' */ | |
475 | control_req->bRequestType = 0x21; | |
476 | control_req->bRequest = 0x09; | |
477 | control_req->wValue = cpu_to_le16(0x0200); | |
478 | control_req->wIndex = cpu_to_le16(0x0001); | |
479 | control_req->wLength = cpu_to_le16(0x0008); | |
480 | ||
481 | /* control pipe is endpoint 0x00 */ | |
482 | pipe = usb_sndctrlpipe(ictx->usbdev_intf0, 0); | |
483 | ||
484 | /* build the control urb */ | |
485 | usb_fill_control_urb(ictx->tx_urb, ictx->usbdev_intf0, | |
486 | pipe, (unsigned char *)control_req, | |
487 | ictx->usb_tx_buf, | |
488 | sizeof(ictx->usb_tx_buf), | |
489 | usb_tx_callback, ictx); | |
490 | ictx->tx_urb->actual_length = 0; | |
491 | } | |
492 | ||
493 | init_completion(&ictx->tx.finished); | |
f789bf40 | 494 | ictx->tx.busy = true; |
21677cfc JW |
495 | smp_rmb(); /* ensure later readers know we're busy */ |
496 | ||
497 | retval = usb_submit_urb(ictx->tx_urb, GFP_KERNEL); | |
498 | if (retval) { | |
f789bf40 | 499 | ictx->tx.busy = false; |
21677cfc JW |
500 | smp_rmb(); /* ensure later readers know we're not busy */ |
501 | err("%s: error submitting urb(%d)", __func__, retval); | |
502 | } else { | |
503 | /* Wait for transmission to complete (or abort) */ | |
504 | mutex_unlock(&ictx->lock); | |
505 | retval = wait_for_completion_interruptible( | |
506 | &ictx->tx.finished); | |
507 | if (retval) | |
508 | err("%s: task interrupted", __func__); | |
509 | mutex_lock(&ictx->lock); | |
510 | ||
511 | retval = ictx->tx.status; | |
512 | if (retval) | |
513 | err("%s: packet tx failed (%d)", __func__, retval); | |
514 | } | |
515 | ||
516 | kfree(control_req); | |
517 | ||
518 | /* | |
519 | * Induce a mandatory 5ms delay before returning, as otherwise, | |
520 | * send_packet can get called so rapidly as to overwhelm the device, | |
521 | * particularly on faster systems and/or those with quirky usb. | |
522 | */ | |
523 | timeout = msecs_to_jiffies(5); | |
524 | set_current_state(TASK_UNINTERRUPTIBLE); | |
525 | schedule_timeout(timeout); | |
526 | ||
527 | return retval; | |
528 | } | |
529 | ||
530 | /** | |
531 | * Sends an associate packet to the iMON 2.4G. | |
532 | * | |
533 | * This might not be such a good idea, since it has an id collision with | |
534 | * some versions of the "IR & VFD" combo. The only way to determine if it | |
535 | * is an RF version is to look at the product description string. (Which | |
536 | * we currently do not fetch). | |
537 | */ | |
538 | static int send_associate_24g(struct imon_context *ictx) | |
539 | { | |
540 | int retval; | |
541 | const unsigned char packet[8] = { 0x01, 0x00, 0x00, 0x00, | |
542 | 0x00, 0x00, 0x00, 0x20 }; | |
543 | ||
544 | if (!ictx) { | |
545 | err("%s: no context for device", __func__); | |
546 | return -ENODEV; | |
547 | } | |
548 | ||
549 | if (!ictx->dev_present_intf0) { | |
550 | err("%s: no iMON device present", __func__); | |
551 | return -ENODEV; | |
552 | } | |
553 | ||
554 | memcpy(ictx->usb_tx_buf, packet, sizeof(packet)); | |
555 | retval = send_packet(ictx); | |
556 | ||
557 | return retval; | |
558 | } | |
559 | ||
560 | /** | |
561 | * Sends packets to setup and show clock on iMON display | |
562 | * | |
563 | * Arguments: year - last 2 digits of year, month - 1..12, | |
564 | * day - 1..31, dow - day of the week (0-Sun...6-Sat), | |
565 | * hour - 0..23, minute - 0..59, second - 0..59 | |
566 | */ | |
567 | static int send_set_imon_clock(struct imon_context *ictx, | |
568 | unsigned int year, unsigned int month, | |
569 | unsigned int day, unsigned int dow, | |
570 | unsigned int hour, unsigned int minute, | |
571 | unsigned int second) | |
572 | { | |
573 | unsigned char clock_enable_pkt[IMON_CLOCK_ENABLE_PACKETS][8]; | |
574 | int retval = 0; | |
575 | int i; | |
576 | ||
577 | if (!ictx) { | |
578 | err("%s: no context for device", __func__); | |
579 | return -ENODEV; | |
580 | } | |
581 | ||
582 | switch (ictx->display_type) { | |
583 | case IMON_DISPLAY_TYPE_LCD: | |
584 | clock_enable_pkt[0][0] = 0x80; | |
585 | clock_enable_pkt[0][1] = year; | |
586 | clock_enable_pkt[0][2] = month-1; | |
587 | clock_enable_pkt[0][3] = day; | |
588 | clock_enable_pkt[0][4] = hour; | |
589 | clock_enable_pkt[0][5] = minute; | |
590 | clock_enable_pkt[0][6] = second; | |
591 | ||
592 | clock_enable_pkt[1][0] = 0x80; | |
593 | clock_enable_pkt[1][1] = 0; | |
594 | clock_enable_pkt[1][2] = 0; | |
595 | clock_enable_pkt[1][3] = 0; | |
596 | clock_enable_pkt[1][4] = 0; | |
597 | clock_enable_pkt[1][5] = 0; | |
598 | clock_enable_pkt[1][6] = 0; | |
599 | ||
600 | if (ictx->product == 0xffdc) { | |
601 | clock_enable_pkt[0][7] = 0x50; | |
602 | clock_enable_pkt[1][7] = 0x51; | |
603 | } else { | |
604 | clock_enable_pkt[0][7] = 0x88; | |
605 | clock_enable_pkt[1][7] = 0x8a; | |
606 | } | |
607 | ||
608 | break; | |
609 | ||
610 | case IMON_DISPLAY_TYPE_VFD: | |
611 | clock_enable_pkt[0][0] = year; | |
612 | clock_enable_pkt[0][1] = month-1; | |
613 | clock_enable_pkt[0][2] = day; | |
614 | clock_enable_pkt[0][3] = dow; | |
615 | clock_enable_pkt[0][4] = hour; | |
616 | clock_enable_pkt[0][5] = minute; | |
617 | clock_enable_pkt[0][6] = second; | |
618 | clock_enable_pkt[0][7] = 0x40; | |
619 | ||
620 | clock_enable_pkt[1][0] = 0; | |
621 | clock_enable_pkt[1][1] = 0; | |
622 | clock_enable_pkt[1][2] = 1; | |
623 | clock_enable_pkt[1][3] = 0; | |
624 | clock_enable_pkt[1][4] = 0; | |
625 | clock_enable_pkt[1][5] = 0; | |
626 | clock_enable_pkt[1][6] = 0; | |
627 | clock_enable_pkt[1][7] = 0x42; | |
628 | ||
629 | break; | |
630 | ||
631 | default: | |
632 | return -ENODEV; | |
633 | } | |
634 | ||
635 | for (i = 0; i < IMON_CLOCK_ENABLE_PACKETS; i++) { | |
636 | memcpy(ictx->usb_tx_buf, clock_enable_pkt[i], 8); | |
637 | retval = send_packet(ictx); | |
638 | if (retval) { | |
639 | err("%s: send_packet failed for packet %d", | |
640 | __func__, i); | |
641 | break; | |
642 | } | |
643 | } | |
644 | ||
645 | return retval; | |
646 | } | |
647 | ||
648 | /** | |
649 | * These are the sysfs functions to handle the association on the iMON 2.4G LT. | |
650 | */ | |
651 | static ssize_t show_associate_remote(struct device *d, | |
652 | struct device_attribute *attr, | |
653 | char *buf) | |
654 | { | |
655 | struct imon_context *ictx = dev_get_drvdata(d); | |
656 | ||
657 | if (!ictx) | |
658 | return -ENODEV; | |
659 | ||
660 | mutex_lock(&ictx->lock); | |
661 | if (ictx->rf_isassociating) | |
662 | strcpy(buf, "associating\n"); | |
663 | else | |
664 | strcpy(buf, "closed\n"); | |
665 | ||
666 | dev_info(d, "Visit http://www.lirc.org/html/imon-24g.html for " | |
667 | "instructions on how to associate your iMON 2.4G DT/LT " | |
668 | "remote\n"); | |
669 | mutex_unlock(&ictx->lock); | |
670 | return strlen(buf); | |
671 | } | |
672 | ||
673 | static ssize_t store_associate_remote(struct device *d, | |
674 | struct device_attribute *attr, | |
675 | const char *buf, size_t count) | |
676 | { | |
677 | struct imon_context *ictx; | |
678 | ||
679 | ictx = dev_get_drvdata(d); | |
680 | ||
681 | if (!ictx) | |
682 | return -ENODEV; | |
683 | ||
684 | mutex_lock(&ictx->lock); | |
f789bf40 | 685 | ictx->rf_isassociating = true; |
21677cfc JW |
686 | send_associate_24g(ictx); |
687 | mutex_unlock(&ictx->lock); | |
688 | ||
689 | return count; | |
690 | } | |
691 | ||
692 | /** | |
693 | * sysfs functions to control internal imon clock | |
694 | */ | |
695 | static ssize_t show_imon_clock(struct device *d, | |
696 | struct device_attribute *attr, char *buf) | |
697 | { | |
698 | struct imon_context *ictx = dev_get_drvdata(d); | |
699 | size_t len; | |
700 | ||
701 | if (!ictx) | |
702 | return -ENODEV; | |
703 | ||
704 | mutex_lock(&ictx->lock); | |
705 | ||
706 | if (!ictx->display_supported) { | |
707 | len = snprintf(buf, PAGE_SIZE, "Not supported."); | |
708 | } else { | |
709 | len = snprintf(buf, PAGE_SIZE, | |
710 | "To set the clock on your iMON display:\n" | |
711 | "# date \"+%%y %%m %%d %%w %%H %%M %%S\" > imon_clock\n" | |
712 | "%s", ictx->display_isopen ? | |
713 | "\nNOTE: imon device must be closed\n" : ""); | |
714 | } | |
715 | ||
716 | mutex_unlock(&ictx->lock); | |
717 | ||
718 | return len; | |
719 | } | |
720 | ||
721 | static ssize_t store_imon_clock(struct device *d, | |
722 | struct device_attribute *attr, | |
723 | const char *buf, size_t count) | |
724 | { | |
725 | struct imon_context *ictx = dev_get_drvdata(d); | |
726 | ssize_t retval; | |
727 | unsigned int year, month, day, dow, hour, minute, second; | |
728 | ||
729 | if (!ictx) | |
730 | return -ENODEV; | |
731 | ||
732 | mutex_lock(&ictx->lock); | |
733 | ||
734 | if (!ictx->display_supported) { | |
735 | retval = -ENODEV; | |
736 | goto exit; | |
737 | } else if (ictx->display_isopen) { | |
738 | retval = -EBUSY; | |
739 | goto exit; | |
740 | } | |
741 | ||
742 | if (sscanf(buf, "%u %u %u %u %u %u %u", &year, &month, &day, &dow, | |
743 | &hour, &minute, &second) != 7) { | |
744 | retval = -EINVAL; | |
745 | goto exit; | |
746 | } | |
747 | ||
748 | if ((month < 1 || month > 12) || | |
749 | (day < 1 || day > 31) || (dow > 6) || | |
750 | (hour > 23) || (minute > 59) || (second > 59)) { | |
751 | retval = -EINVAL; | |
752 | goto exit; | |
753 | } | |
754 | ||
755 | retval = send_set_imon_clock(ictx, year, month, day, dow, | |
756 | hour, minute, second); | |
757 | if (retval) | |
758 | goto exit; | |
759 | ||
760 | retval = count; | |
761 | exit: | |
762 | mutex_unlock(&ictx->lock); | |
763 | ||
764 | return retval; | |
765 | } | |
766 | ||
767 | ||
768 | static DEVICE_ATTR(imon_clock, S_IWUSR | S_IRUGO, show_imon_clock, | |
769 | store_imon_clock); | |
770 | ||
771 | static DEVICE_ATTR(associate_remote, S_IWUSR | S_IRUGO, show_associate_remote, | |
772 | store_associate_remote); | |
773 | ||
774 | static struct attribute *imon_display_sysfs_entries[] = { | |
775 | &dev_attr_imon_clock.attr, | |
776 | NULL | |
777 | }; | |
778 | ||
779 | static struct attribute_group imon_display_attribute_group = { | |
780 | .attrs = imon_display_sysfs_entries | |
781 | }; | |
782 | ||
783 | static struct attribute *imon_rf_sysfs_entries[] = { | |
784 | &dev_attr_associate_remote.attr, | |
785 | NULL | |
786 | }; | |
787 | ||
788 | static struct attribute_group imon_rf_attribute_group = { | |
789 | .attrs = imon_rf_sysfs_entries | |
790 | }; | |
791 | ||
792 | /** | |
793 | * Writes data to the VFD. The iMON VFD is 2x16 characters | |
794 | * and requires data in 5 consecutive USB interrupt packets, | |
795 | * each packet but the last carrying 7 bytes. | |
796 | * | |
797 | * I don't know if the VFD board supports features such as | |
798 | * scrolling, clearing rows, blanking, etc. so at | |
799 | * the caller must provide a full screen of data. If fewer | |
800 | * than 32 bytes are provided spaces will be appended to | |
801 | * generate a full screen. | |
802 | */ | |
803 | static ssize_t vfd_write(struct file *file, const char *buf, | |
804 | size_t n_bytes, loff_t *pos) | |
805 | { | |
806 | int i; | |
807 | int offset; | |
808 | int seq; | |
809 | int retval = 0; | |
810 | struct imon_context *ictx; | |
811 | const unsigned char vfd_packet6[] = { | |
812 | 0x01, 0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF }; | |
813 | ||
abf84383 | 814 | ictx = file->private_data; |
21677cfc JW |
815 | if (!ictx) { |
816 | err("%s: no context for device", __func__); | |
817 | return -ENODEV; | |
818 | } | |
819 | ||
820 | mutex_lock(&ictx->lock); | |
821 | ||
822 | if (!ictx->dev_present_intf0) { | |
823 | err("%s: no iMON device present", __func__); | |
824 | retval = -ENODEV; | |
825 | goto exit; | |
826 | } | |
827 | ||
828 | if (n_bytes <= 0 || n_bytes > 32) { | |
829 | err("%s: invalid payload size", __func__); | |
830 | retval = -EINVAL; | |
831 | goto exit; | |
832 | } | |
833 | ||
834 | if (copy_from_user(ictx->tx.data_buf, buf, n_bytes)) { | |
835 | retval = -EFAULT; | |
836 | goto exit; | |
837 | } | |
838 | ||
839 | /* Pad with spaces */ | |
840 | for (i = n_bytes; i < 32; ++i) | |
841 | ictx->tx.data_buf[i] = ' '; | |
842 | ||
843 | for (i = 32; i < 35; ++i) | |
844 | ictx->tx.data_buf[i] = 0xFF; | |
845 | ||
846 | offset = 0; | |
847 | seq = 0; | |
848 | ||
849 | do { | |
850 | memcpy(ictx->usb_tx_buf, ictx->tx.data_buf + offset, 7); | |
851 | ictx->usb_tx_buf[7] = (unsigned char) seq; | |
852 | ||
853 | retval = send_packet(ictx); | |
854 | if (retval) { | |
855 | err("%s: send packet failed for packet #%d", | |
856 | __func__, seq/2); | |
857 | goto exit; | |
858 | } else { | |
859 | seq += 2; | |
860 | offset += 7; | |
861 | } | |
862 | ||
863 | } while (offset < 35); | |
864 | ||
865 | /* Send packet #6 */ | |
866 | memcpy(ictx->usb_tx_buf, &vfd_packet6, sizeof(vfd_packet6)); | |
867 | ictx->usb_tx_buf[7] = (unsigned char) seq; | |
868 | retval = send_packet(ictx); | |
869 | if (retval) | |
870 | err("%s: send packet failed for packet #%d", | |
871 | __func__, seq / 2); | |
872 | ||
873 | exit: | |
874 | mutex_unlock(&ictx->lock); | |
875 | ||
876 | return (!retval) ? n_bytes : retval; | |
877 | } | |
878 | ||
879 | /** | |
880 | * Writes data to the LCD. The iMON OEM LCD screen expects 8-byte | |
881 | * packets. We accept data as 16 hexadecimal digits, followed by a | |
882 | * newline (to make it easy to drive the device from a command-line | |
883 | * -- even though the actual binary data is a bit complicated). | |
884 | * | |
885 | * The device itself is not a "traditional" text-mode display. It's | |
886 | * actually a 16x96 pixel bitmap display. That means if you want to | |
887 | * display text, you've got to have your own "font" and translate the | |
888 | * text into bitmaps for display. This is really flexible (you can | |
889 | * display whatever diacritics you need, and so on), but it's also | |
890 | * a lot more complicated than most LCDs... | |
891 | */ | |
892 | static ssize_t lcd_write(struct file *file, const char *buf, | |
893 | size_t n_bytes, loff_t *pos) | |
894 | { | |
895 | int retval = 0; | |
896 | struct imon_context *ictx; | |
897 | ||
abf84383 | 898 | ictx = file->private_data; |
21677cfc JW |
899 | if (!ictx) { |
900 | err("%s: no context for device", __func__); | |
901 | return -ENODEV; | |
902 | } | |
903 | ||
904 | mutex_lock(&ictx->lock); | |
905 | ||
906 | if (!ictx->display_supported) { | |
907 | err("%s: no iMON display present", __func__); | |
908 | retval = -ENODEV; | |
909 | goto exit; | |
910 | } | |
911 | ||
912 | if (n_bytes != 8) { | |
913 | err("%s: invalid payload size: %d (expecting 8)", | |
914 | __func__, (int) n_bytes); | |
915 | retval = -EINVAL; | |
916 | goto exit; | |
917 | } | |
918 | ||
919 | if (copy_from_user(ictx->usb_tx_buf, buf, 8)) { | |
920 | retval = -EFAULT; | |
921 | goto exit; | |
922 | } | |
923 | ||
924 | retval = send_packet(ictx); | |
925 | if (retval) { | |
926 | err("%s: send packet failed!", __func__); | |
927 | goto exit; | |
928 | } else { | |
929 | dev_dbg(ictx->dev, "%s: write %d bytes to LCD\n", | |
930 | __func__, (int) n_bytes); | |
931 | } | |
932 | exit: | |
933 | mutex_unlock(&ictx->lock); | |
934 | return (!retval) ? n_bytes : retval; | |
935 | } | |
936 | ||
937 | /** | |
938 | * Callback function for USB core API: transmit data | |
939 | */ | |
940 | static void usb_tx_callback(struct urb *urb) | |
941 | { | |
942 | struct imon_context *ictx; | |
943 | ||
944 | if (!urb) | |
945 | return; | |
946 | ictx = (struct imon_context *)urb->context; | |
947 | if (!ictx) | |
948 | return; | |
949 | ||
950 | ictx->tx.status = urb->status; | |
951 | ||
952 | /* notify waiters that write has finished */ | |
f789bf40 | 953 | ictx->tx.busy = false; |
21677cfc JW |
954 | smp_rmb(); /* ensure later readers know we're not busy */ |
955 | complete(&ictx->tx.finished); | |
956 | } | |
957 | ||
958 | /** | |
959 | * mce/rc6 keypresses have no distinct release code, use timer | |
960 | */ | |
961 | static void imon_mce_timeout(unsigned long data) | |
962 | { | |
963 | struct imon_context *ictx = (struct imon_context *)data; | |
964 | ||
965 | input_report_key(ictx->idev, ictx->last_keycode, 0); | |
966 | input_sync(ictx->idev); | |
967 | } | |
968 | ||
969 | /** | |
970 | * report touchscreen input | |
971 | */ | |
972 | static void imon_touch_display_timeout(unsigned long data) | |
973 | { | |
974 | struct imon_context *ictx = (struct imon_context *)data; | |
975 | ||
f03900d6 | 976 | if (ictx->display_type != IMON_DISPLAY_TYPE_VGA) |
21677cfc JW |
977 | return; |
978 | ||
979 | input_report_abs(ictx->touch, ABS_X, ictx->touch_x); | |
980 | input_report_abs(ictx->touch, ABS_Y, ictx->touch_y); | |
981 | input_report_key(ictx->touch, BTN_TOUCH, 0x00); | |
982 | input_sync(ictx->touch); | |
983 | } | |
984 | ||
985 | /** | |
986 | * iMON IR receivers support two different signal sets -- those used by | |
987 | * the iMON remotes, and those used by the Windows MCE remotes (which is | |
988 | * really just RC-6), but only one or the other at a time, as the signals | |
989 | * are decoded onboard the receiver. | |
990 | */ | |
6718e8ad | 991 | int imon_ir_change_protocol(void *priv, u64 ir_type) |
21677cfc JW |
992 | { |
993 | int retval; | |
6718e8ad | 994 | struct imon_context *ictx = priv; |
21677cfc | 995 | struct device *dev = ictx->dev; |
6718e8ad | 996 | bool pad_mouse; |
21677cfc JW |
997 | unsigned char ir_proto_packet[] = { |
998 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x86 }; | |
999 | ||
666a9ed8 | 1000 | if (ir_type && !(ir_type & ictx->props->allowed_protos)) |
21677cfc JW |
1001 | dev_warn(dev, "Looks like you're trying to use an IR protocol " |
1002 | "this device does not support\n"); | |
1003 | ||
6718e8ad JW |
1004 | switch (ir_type) { |
1005 | case IR_TYPE_RC6: | |
21677cfc JW |
1006 | dev_dbg(dev, "Configuring IR receiver for MCE protocol\n"); |
1007 | ir_proto_packet[0] = 0x01; | |
6718e8ad | 1008 | pad_mouse = false; |
21677cfc JW |
1009 | init_timer(&ictx->itimer); |
1010 | ictx->itimer.data = (unsigned long)ictx; | |
1011 | ictx->itimer.function = imon_mce_timeout; | |
1012 | break; | |
6718e8ad JW |
1013 | case IR_TYPE_UNKNOWN: |
1014 | case IR_TYPE_OTHER: | |
666a9ed8 JW |
1015 | dev_dbg(dev, "Configuring IR receiver for iMON protocol\n"); |
1016 | if (pad_stabilize) | |
6718e8ad | 1017 | pad_mouse = true; |
666a9ed8 JW |
1018 | else { |
1019 | dev_dbg(dev, "PAD stabilize functionality disabled\n"); | |
6718e8ad JW |
1020 | pad_mouse = false; |
1021 | } | |
21677cfc | 1022 | /* ir_proto_packet[0] = 0x00; // already the default */ |
6718e8ad | 1023 | ir_type = IR_TYPE_OTHER; |
21677cfc JW |
1024 | break; |
1025 | default: | |
6718e8ad | 1026 | dev_warn(dev, "Unsupported IR protocol specified, overriding " |
666a9ed8 JW |
1027 | "to iMON IR protocol\n"); |
1028 | if (pad_stabilize) | |
6718e8ad | 1029 | pad_mouse = true; |
666a9ed8 JW |
1030 | else { |
1031 | dev_dbg(dev, "PAD stabilize functionality disabled\n"); | |
6718e8ad JW |
1032 | pad_mouse = false; |
1033 | } | |
1034 | /* ir_proto_packet[0] = 0x00; // already the default */ | |
1035 | ir_type = IR_TYPE_OTHER; | |
21677cfc JW |
1036 | break; |
1037 | } | |
1038 | ||
1039 | memcpy(ictx->usb_tx_buf, &ir_proto_packet, sizeof(ir_proto_packet)); | |
1040 | ||
1041 | retval = send_packet(ictx); | |
6718e8ad JW |
1042 | if (retval) |
1043 | goto out; | |
1044 | ||
1045 | ictx->ir_type = ir_type; | |
1046 | ictx->pad_mouse = pad_mouse; | |
1047 | ||
1048 | out: | |
1049 | return retval; | |
21677cfc JW |
1050 | } |
1051 | ||
1052 | static inline int tv2int(const struct timeval *a, const struct timeval *b) | |
1053 | { | |
1054 | int usecs = 0; | |
1055 | int sec = 0; | |
1056 | ||
1057 | if (b->tv_usec > a->tv_usec) { | |
1058 | usecs = 1000000; | |
1059 | sec--; | |
1060 | } | |
1061 | ||
1062 | usecs += a->tv_usec - b->tv_usec; | |
1063 | ||
1064 | sec += a->tv_sec - b->tv_sec; | |
1065 | sec *= 1000; | |
1066 | usecs /= 1000; | |
1067 | sec += usecs; | |
1068 | ||
1069 | if (sec < 0) | |
1070 | sec = 1000; | |
1071 | ||
1072 | return sec; | |
1073 | } | |
1074 | ||
1075 | /** | |
1076 | * The directional pad behaves a bit differently, depending on whether this is | |
1077 | * one of the older ffdc devices or a newer device. Newer devices appear to | |
1078 | * have a higher resolution matrix for more precise mouse movement, but it | |
1079 | * makes things overly sensitive in keyboard mode, so we do some interesting | |
1080 | * contortions to make it less touchy. Older devices run through the same | |
1081 | * routine with shorter timeout and a smaller threshold. | |
1082 | */ | |
1083 | static int stabilize(int a, int b, u16 timeout, u16 threshold) | |
1084 | { | |
1085 | struct timeval ct; | |
1086 | static struct timeval prev_time = {0, 0}; | |
1087 | static struct timeval hit_time = {0, 0}; | |
1088 | static int x, y, prev_result, hits; | |
1089 | int result = 0; | |
1090 | int msec, msec_hit; | |
1091 | ||
1092 | do_gettimeofday(&ct); | |
1093 | msec = tv2int(&ct, &prev_time); | |
1094 | msec_hit = tv2int(&ct, &hit_time); | |
1095 | ||
1096 | if (msec > 100) { | |
1097 | x = 0; | |
1098 | y = 0; | |
1099 | hits = 0; | |
1100 | } | |
1101 | ||
1102 | x += a; | |
1103 | y += b; | |
1104 | ||
1105 | prev_time = ct; | |
1106 | ||
1107 | if (abs(x) > threshold || abs(y) > threshold) { | |
1108 | if (abs(y) > abs(x)) | |
1109 | result = (y > 0) ? 0x7F : 0x80; | |
1110 | else | |
1111 | result = (x > 0) ? 0x7F00 : 0x8000; | |
1112 | ||
1113 | x = 0; | |
1114 | y = 0; | |
1115 | ||
1116 | if (result == prev_result) { | |
1117 | hits++; | |
1118 | ||
1119 | if (hits > 3) { | |
1120 | switch (result) { | |
1121 | case 0x7F: | |
1122 | y = 17 * threshold / 30; | |
1123 | break; | |
1124 | case 0x80: | |
1125 | y -= 17 * threshold / 30; | |
1126 | break; | |
1127 | case 0x7F00: | |
1128 | x = 17 * threshold / 30; | |
1129 | break; | |
1130 | case 0x8000: | |
1131 | x -= 17 * threshold / 30; | |
1132 | break; | |
1133 | } | |
1134 | } | |
1135 | ||
1136 | if (hits == 2 && msec_hit < timeout) { | |
1137 | result = 0; | |
1138 | hits = 1; | |
1139 | } | |
1140 | } else { | |
1141 | prev_result = result; | |
1142 | hits = 1; | |
1143 | hit_time = ct; | |
1144 | } | |
1145 | } | |
1146 | ||
1147 | return result; | |
1148 | } | |
1149 | ||
1150 | static u32 imon_remote_key_lookup(struct imon_context *ictx, u32 hw_code) | |
1151 | { | |
1152 | u32 scancode = be32_to_cpu(hw_code); | |
1153 | u32 keycode; | |
1154 | u32 release; | |
1155 | bool is_release_code = false; | |
1156 | ||
1157 | /* Look for the initial press of a button */ | |
1158 | keycode = ir_g_keycode_from_table(ictx->idev, scancode); | |
1159 | ||
1160 | /* Look for the release of a button */ | |
1161 | if (keycode == KEY_RESERVED) { | |
1162 | release = scancode & ~0x4000; | |
1163 | keycode = ir_g_keycode_from_table(ictx->idev, release); | |
1164 | if (keycode != KEY_RESERVED) | |
1165 | is_release_code = true; | |
1166 | } | |
1167 | ||
1168 | ictx->release_code = is_release_code; | |
1169 | ||
1170 | return keycode; | |
1171 | } | |
1172 | ||
1173 | static u32 imon_mce_key_lookup(struct imon_context *ictx, u32 hw_code) | |
1174 | { | |
1175 | u32 scancode = be32_to_cpu(hw_code); | |
1176 | u32 keycode; | |
1177 | ||
1178 | #define MCE_KEY_MASK 0x7000 | |
1179 | #define MCE_TOGGLE_BIT 0x8000 | |
1180 | ||
1181 | /* | |
1182 | * On some receivers, mce keys decode to 0x8000f04xx and 0x8000f84xx | |
1183 | * (the toggle bit flipping between alternating key presses), while | |
1184 | * on other receivers, we see 0x8000f74xx and 0x8000ff4xx. To keep | |
1185 | * the table trim, we always or in the bits to look up 0x8000ff4xx, | |
1186 | * but we can't or them into all codes, as some keys are decoded in | |
1187 | * a different way w/o the same use of the toggle bit... | |
1188 | */ | |
1189 | if ((scancode >> 24) & 0x80) | |
1190 | scancode = scancode | MCE_KEY_MASK | MCE_TOGGLE_BIT; | |
1191 | ||
1192 | keycode = ir_g_keycode_from_table(ictx->idev, scancode); | |
1193 | ||
1194 | return keycode; | |
1195 | } | |
1196 | ||
1197 | static u32 imon_panel_key_lookup(u64 hw_code) | |
1198 | { | |
1199 | int i; | |
1200 | u64 code = be64_to_cpu(hw_code); | |
083e4721 | 1201 | u32 keycode = KEY_RESERVED; |
21677cfc | 1202 | |
083e4721 JW |
1203 | for (i = 0; i < ARRAY_SIZE(imon_panel_key_table); i++) { |
1204 | if (imon_panel_key_table[i].hw_code == (code | 0xffee)) { | |
1205 | keycode = imon_panel_key_table[i].keycode; | |
21677cfc | 1206 | break; |
083e4721 JW |
1207 | } |
1208 | } | |
21677cfc JW |
1209 | |
1210 | return keycode; | |
1211 | } | |
1212 | ||
1213 | static bool imon_mouse_event(struct imon_context *ictx, | |
1214 | unsigned char *buf, int len) | |
1215 | { | |
1216 | char rel_x = 0x00, rel_y = 0x00; | |
1217 | u8 right_shift = 1; | |
f789bf40 | 1218 | bool mouse_input = true; |
21677cfc JW |
1219 | int dir = 0; |
1220 | ||
1221 | /* newer iMON device PAD or mouse button */ | |
1222 | if (ictx->product != 0xffdc && (buf[0] & 0x01) && len == 5) { | |
1223 | rel_x = buf[2]; | |
1224 | rel_y = buf[3]; | |
1225 | right_shift = 1; | |
1226 | /* 0xffdc iMON PAD or mouse button input */ | |
1227 | } else if (ictx->product == 0xffdc && (buf[0] & 0x40) && | |
1228 | !((buf[1] & 0x01) || ((buf[1] >> 2) & 0x01))) { | |
1229 | rel_x = (buf[1] & 0x08) | (buf[1] & 0x10) >> 2 | | |
1230 | (buf[1] & 0x20) >> 4 | (buf[1] & 0x40) >> 6; | |
1231 | if (buf[0] & 0x02) | |
1232 | rel_x |= ~0x0f; | |
1233 | rel_x = rel_x + rel_x / 2; | |
1234 | rel_y = (buf[2] & 0x08) | (buf[2] & 0x10) >> 2 | | |
1235 | (buf[2] & 0x20) >> 4 | (buf[2] & 0x40) >> 6; | |
1236 | if (buf[0] & 0x01) | |
1237 | rel_y |= ~0x0f; | |
1238 | rel_y = rel_y + rel_y / 2; | |
1239 | right_shift = 2; | |
1240 | /* some ffdc devices decode mouse buttons differently... */ | |
1241 | } else if (ictx->product == 0xffdc && (buf[0] == 0x68)) { | |
1242 | right_shift = 2; | |
1243 | /* ch+/- buttons, which we use for an emulated scroll wheel */ | |
1244 | } else if (ictx->kc == KEY_CHANNELUP && (buf[2] & 0x40) != 0x40) { | |
1245 | dir = 1; | |
1246 | } else if (ictx->kc == KEY_CHANNELDOWN && (buf[2] & 0x40) != 0x40) { | |
1247 | dir = -1; | |
1248 | } else | |
f789bf40 | 1249 | mouse_input = false; |
21677cfc JW |
1250 | |
1251 | if (mouse_input) { | |
1252 | dev_dbg(ictx->dev, "sending mouse data via input subsystem\n"); | |
1253 | ||
1254 | if (dir) { | |
1255 | input_report_rel(ictx->idev, REL_WHEEL, dir); | |
1256 | } else if (rel_x || rel_y) { | |
1257 | input_report_rel(ictx->idev, REL_X, rel_x); | |
1258 | input_report_rel(ictx->idev, REL_Y, rel_y); | |
1259 | } else { | |
1260 | input_report_key(ictx->idev, BTN_LEFT, buf[1] & 0x1); | |
1261 | input_report_key(ictx->idev, BTN_RIGHT, | |
1262 | buf[1] >> right_shift & 0x1); | |
1263 | } | |
1264 | input_sync(ictx->idev); | |
1265 | ictx->last_keycode = ictx->kc; | |
1266 | } | |
1267 | ||
1268 | return mouse_input; | |
1269 | } | |
1270 | ||
1271 | static void imon_touch_event(struct imon_context *ictx, unsigned char *buf) | |
1272 | { | |
1273 | mod_timer(&ictx->ttimer, jiffies + TOUCH_TIMEOUT); | |
1274 | ictx->touch_x = (buf[0] << 4) | (buf[1] >> 4); | |
1275 | ictx->touch_y = 0xfff - ((buf[2] << 4) | (buf[1] & 0xf)); | |
1276 | input_report_abs(ictx->touch, ABS_X, ictx->touch_x); | |
1277 | input_report_abs(ictx->touch, ABS_Y, ictx->touch_y); | |
1278 | input_report_key(ictx->touch, BTN_TOUCH, 0x01); | |
1279 | input_sync(ictx->touch); | |
1280 | } | |
1281 | ||
1282 | static void imon_pad_to_keys(struct imon_context *ictx, unsigned char *buf) | |
1283 | { | |
1284 | int dir = 0; | |
1285 | char rel_x = 0x00, rel_y = 0x00; | |
1286 | u16 timeout, threshold; | |
1287 | u64 temp_key; | |
1288 | u32 remote_key; | |
1289 | ||
1290 | /* | |
1291 | * The imon directional pad functions more like a touchpad. Bytes 3 & 4 | |
1292 | * contain a position coordinate (x,y), with each component ranging | |
1293 | * from -14 to 14. We want to down-sample this to only 4 discrete values | |
1294 | * for up/down/left/right arrow keys. Also, when you get too close to | |
1295 | * diagonals, it has a tendancy to jump back and forth, so lets try to | |
1296 | * ignore when they get too close. | |
1297 | */ | |
1298 | if (ictx->product != 0xffdc) { | |
1299 | /* first, pad to 8 bytes so it conforms with everything else */ | |
1300 | buf[5] = buf[6] = buf[7] = 0; | |
1301 | timeout = 500; /* in msecs */ | |
1302 | /* (2*threshold) x (2*threshold) square */ | |
1303 | threshold = pad_thresh ? pad_thresh : 28; | |
1304 | rel_x = buf[2]; | |
1305 | rel_y = buf[3]; | |
1306 | ||
6718e8ad | 1307 | if (ictx->ir_type == IR_TYPE_OTHER && pad_stabilize) { |
21677cfc JW |
1308 | if ((buf[1] == 0) && ((rel_x != 0) || (rel_y != 0))) { |
1309 | dir = stabilize((int)rel_x, (int)rel_y, | |
1310 | timeout, threshold); | |
1311 | if (!dir) { | |
1312 | ictx->kc = KEY_UNKNOWN; | |
1313 | return; | |
1314 | } | |
1315 | buf[2] = dir & 0xFF; | |
1316 | buf[3] = (dir >> 8) & 0xFF; | |
1317 | memcpy(&temp_key, buf, sizeof(temp_key)); | |
1318 | remote_key = (u32) (le64_to_cpu(temp_key) | |
1319 | & 0xffffffff); | |
1320 | ictx->kc = imon_remote_key_lookup(ictx, | |
1321 | remote_key); | |
1322 | } | |
1323 | } else { | |
1324 | if (abs(rel_y) > abs(rel_x)) { | |
1325 | buf[2] = (rel_y > 0) ? 0x7F : 0x80; | |
1326 | buf[3] = 0; | |
1327 | ictx->kc = (rel_y > 0) ? KEY_DOWN : KEY_UP; | |
1328 | } else { | |
1329 | buf[2] = 0; | |
1330 | buf[3] = (rel_x > 0) ? 0x7F : 0x80; | |
1331 | ictx->kc = (rel_x > 0) ? KEY_RIGHT : KEY_LEFT; | |
1332 | } | |
1333 | } | |
1334 | ||
1335 | /* | |
1336 | * Handle on-board decoded pad events for e.g. older VFD/iMON-Pad | |
1337 | * device (15c2:ffdc). The remote generates various codes from | |
1338 | * 0x68nnnnB7 to 0x6AnnnnB7, the left mouse button generates | |
1339 | * 0x688301b7 and the right one 0x688481b7. All other keys generate | |
1340 | * 0x2nnnnnnn. Position coordinate is encoded in buf[1] and buf[2] with | |
1341 | * reversed endianess. Extract direction from buffer, rotate endianess, | |
1342 | * adjust sign and feed the values into stabilize(). The resulting codes | |
1343 | * will be 0x01008000, 0x01007F00, which match the newer devices. | |
1344 | */ | |
1345 | } else { | |
1346 | timeout = 10; /* in msecs */ | |
1347 | /* (2*threshold) x (2*threshold) square */ | |
1348 | threshold = pad_thresh ? pad_thresh : 15; | |
1349 | ||
1350 | /* buf[1] is x */ | |
1351 | rel_x = (buf[1] & 0x08) | (buf[1] & 0x10) >> 2 | | |
1352 | (buf[1] & 0x20) >> 4 | (buf[1] & 0x40) >> 6; | |
1353 | if (buf[0] & 0x02) | |
1354 | rel_x |= ~0x10+1; | |
1355 | /* buf[2] is y */ | |
1356 | rel_y = (buf[2] & 0x08) | (buf[2] & 0x10) >> 2 | | |
1357 | (buf[2] & 0x20) >> 4 | (buf[2] & 0x40) >> 6; | |
1358 | if (buf[0] & 0x01) | |
1359 | rel_y |= ~0x10+1; | |
1360 | ||
1361 | buf[0] = 0x01; | |
1362 | buf[1] = buf[4] = buf[5] = buf[6] = buf[7] = 0; | |
1363 | ||
6718e8ad | 1364 | if (ictx->ir_type == IR_TYPE_OTHER && pad_stabilize) { |
21677cfc JW |
1365 | dir = stabilize((int)rel_x, (int)rel_y, |
1366 | timeout, threshold); | |
1367 | if (!dir) { | |
1368 | ictx->kc = KEY_UNKNOWN; | |
1369 | return; | |
1370 | } | |
1371 | buf[2] = dir & 0xFF; | |
1372 | buf[3] = (dir >> 8) & 0xFF; | |
1373 | memcpy(&temp_key, buf, sizeof(temp_key)); | |
1374 | remote_key = (u32) (le64_to_cpu(temp_key) & 0xffffffff); | |
1375 | ictx->kc = imon_remote_key_lookup(ictx, remote_key); | |
1376 | } else { | |
1377 | if (abs(rel_y) > abs(rel_x)) { | |
1378 | buf[2] = (rel_y > 0) ? 0x7F : 0x80; | |
1379 | buf[3] = 0; | |
1380 | ictx->kc = (rel_y > 0) ? KEY_DOWN : KEY_UP; | |
1381 | } else { | |
1382 | buf[2] = 0; | |
1383 | buf[3] = (rel_x > 0) ? 0x7F : 0x80; | |
1384 | ictx->kc = (rel_x > 0) ? KEY_RIGHT : KEY_LEFT; | |
1385 | } | |
1386 | } | |
1387 | } | |
1388 | } | |
1389 | ||
1390 | static int imon_parse_press_type(struct imon_context *ictx, | |
1391 | unsigned char *buf, u8 ktype) | |
1392 | { | |
1393 | int press_type = 0; | |
db190fc1 JW |
1394 | int rep_delay = ictx->idev->rep[REP_DELAY]; |
1395 | int rep_period = ictx->idev->rep[REP_PERIOD]; | |
21677cfc JW |
1396 | |
1397 | /* key release of 0x02XXXXXX key */ | |
1398 | if (ictx->kc == KEY_RESERVED && buf[0] == 0x02 && buf[3] == 0x00) | |
1399 | ictx->kc = ictx->last_keycode; | |
1400 | ||
1401 | /* mouse button release on (some) 0xffdc devices */ | |
1402 | else if (ictx->kc == KEY_RESERVED && buf[0] == 0x68 && buf[1] == 0x82 && | |
1403 | buf[2] == 0x81 && buf[3] == 0xb7) | |
1404 | ictx->kc = ictx->last_keycode; | |
1405 | ||
1406 | /* mouse button release on (some other) 0xffdc devices */ | |
1407 | else if (ictx->kc == KEY_RESERVED && buf[0] == 0x01 && buf[1] == 0x00 && | |
1408 | buf[2] == 0x81 && buf[3] == 0xb7) | |
1409 | ictx->kc = ictx->last_keycode; | |
1410 | ||
1411 | /* mce-specific button handling */ | |
1412 | else if (ktype == IMON_KEY_MCE) { | |
1413 | /* initial press */ | |
1414 | if (ictx->kc != ictx->last_keycode | |
1415 | || buf[2] != ictx->mce_toggle_bit) { | |
1416 | ictx->last_keycode = ictx->kc; | |
1417 | ictx->mce_toggle_bit = buf[2]; | |
1418 | press_type = 1; | |
1419 | mod_timer(&ictx->itimer, | |
db190fc1 | 1420 | jiffies + msecs_to_jiffies(rep_delay)); |
21677cfc JW |
1421 | /* repeat */ |
1422 | } else { | |
1423 | press_type = 2; | |
1424 | mod_timer(&ictx->itimer, | |
db190fc1 | 1425 | jiffies + msecs_to_jiffies(rep_period)); |
21677cfc JW |
1426 | } |
1427 | ||
1428 | /* incoherent or irrelevant data */ | |
1429 | } else if (ictx->kc == KEY_RESERVED) | |
1430 | press_type = -EINVAL; | |
1431 | ||
1432 | /* key release of 0xXXXXXXb7 key */ | |
1433 | else if (ictx->release_code) | |
1434 | press_type = 0; | |
1435 | ||
1436 | /* this is a button press */ | |
1437 | else | |
1438 | press_type = 1; | |
1439 | ||
1440 | return press_type; | |
1441 | } | |
1442 | ||
1443 | /** | |
1444 | * Process the incoming packet | |
1445 | */ | |
1446 | static void imon_incoming_packet(struct imon_context *ictx, | |
1447 | struct urb *urb, int intf) | |
1448 | { | |
1449 | int len = urb->actual_length; | |
1450 | unsigned char *buf = urb->transfer_buffer; | |
1451 | struct device *dev = ictx->dev; | |
1452 | u32 kc; | |
f789bf40 | 1453 | bool norelease = false; |
21677cfc JW |
1454 | int i; |
1455 | u64 temp_key; | |
1456 | u64 panel_key = 0; | |
1457 | u32 remote_key = 0; | |
1458 | struct input_dev *idev = NULL; | |
1459 | int press_type = 0; | |
1460 | int msec; | |
1461 | struct timeval t; | |
1462 | static struct timeval prev_time = { 0, 0 }; | |
1463 | u8 ktype = IMON_KEY_IMON; | |
1464 | ||
1465 | idev = ictx->idev; | |
1466 | ||
1467 | /* filter out junk data on the older 0xffdc imon devices */ | |
bbe4690f | 1468 | if ((buf[0] == 0xff) && (buf[1] == 0xff) && (buf[2] == 0xff)) |
21677cfc JW |
1469 | return; |
1470 | ||
1471 | /* Figure out what key was pressed */ | |
1472 | memcpy(&temp_key, buf, sizeof(temp_key)); | |
1473 | if (len == 8 && buf[7] == 0xee) { | |
1474 | ktype = IMON_KEY_PANEL; | |
1475 | panel_key = le64_to_cpu(temp_key); | |
1476 | kc = imon_panel_key_lookup(panel_key); | |
1477 | } else { | |
1478 | remote_key = (u32) (le64_to_cpu(temp_key) & 0xffffffff); | |
6718e8ad | 1479 | if (ictx->ir_type == IR_TYPE_RC6) { |
21677cfc JW |
1480 | if (buf[0] == 0x80) |
1481 | ktype = IMON_KEY_MCE; | |
1482 | kc = imon_mce_key_lookup(ictx, remote_key); | |
1483 | } else | |
1484 | kc = imon_remote_key_lookup(ictx, remote_key); | |
1485 | } | |
1486 | ||
1487 | /* keyboard/mouse mode toggle button */ | |
1488 | if (kc == KEY_KEYBOARD && !ictx->release_code) { | |
1489 | ictx->last_keycode = kc; | |
1490 | if (!nomouse) { | |
1491 | ictx->pad_mouse = ~(ictx->pad_mouse) & 0x1; | |
1492 | dev_dbg(dev, "toggling to %s mode\n", | |
1493 | ictx->pad_mouse ? "mouse" : "keyboard"); | |
1494 | return; | |
1495 | } else { | |
1496 | ictx->pad_mouse = 0; | |
1497 | dev_dbg(dev, "mouse mode disabled, passing key value\n"); | |
1498 | } | |
1499 | } | |
1500 | ||
1501 | ictx->kc = kc; | |
1502 | ||
1503 | /* send touchscreen events through input subsystem if touchpad data */ | |
1504 | if (ictx->display_type == IMON_DISPLAY_TYPE_VGA && len == 8 && | |
1505 | buf[7] == 0x86) { | |
1506 | imon_touch_event(ictx, buf); | |
1507 | ||
1508 | /* look for mouse events with pad in mouse mode */ | |
1509 | } else if (ictx->pad_mouse) { | |
1510 | if (imon_mouse_event(ictx, buf, len)) | |
1511 | return; | |
1512 | } | |
1513 | ||
1514 | /* Now for some special handling to convert pad input to arrow keys */ | |
1515 | if (((len == 5) && (buf[0] == 0x01) && (buf[4] == 0x00)) || | |
1516 | ((len == 8) && (buf[0] & 0x40) && | |
1517 | !(buf[1] & 0x1 || buf[1] >> 2 & 0x1))) { | |
1518 | len = 8; | |
1519 | imon_pad_to_keys(ictx, buf); | |
f789bf40 | 1520 | norelease = true; |
21677cfc JW |
1521 | } |
1522 | ||
1523 | if (debug) { | |
1524 | printk(KERN_INFO "intf%d decoded packet: ", intf); | |
1525 | for (i = 0; i < len; ++i) | |
1526 | printk("%02x ", buf[i]); | |
1527 | printk("\n"); | |
1528 | } | |
1529 | ||
1530 | press_type = imon_parse_press_type(ictx, buf, ktype); | |
1531 | if (press_type < 0) | |
1532 | goto not_input_data; | |
1533 | ||
1534 | if (ictx->kc == KEY_UNKNOWN) | |
1535 | goto unknown_key; | |
1536 | ||
1537 | /* KEY_MUTE repeats from MCE and knob need to be suppressed */ | |
1538 | if ((ictx->kc == KEY_MUTE && ictx->kc == ictx->last_keycode) | |
1539 | && (buf[7] == 0xee || ktype == IMON_KEY_MCE)) { | |
1540 | do_gettimeofday(&t); | |
1541 | msec = tv2int(&t, &prev_time); | |
1542 | prev_time = t; | |
db190fc1 | 1543 | if (msec < idev->rep[REP_DELAY]) |
21677cfc JW |
1544 | return; |
1545 | } | |
1546 | ||
1547 | input_report_key(idev, ictx->kc, press_type); | |
1548 | input_sync(idev); | |
1549 | ||
1550 | /* panel keys and some remote keys don't generate a release */ | |
1551 | if (panel_key || norelease) { | |
1552 | input_report_key(idev, ictx->kc, 0); | |
1553 | input_sync(idev); | |
1554 | } | |
1555 | ||
1556 | ictx->last_keycode = ictx->kc; | |
1557 | ||
1558 | return; | |
1559 | ||
1560 | unknown_key: | |
1561 | dev_info(dev, "%s: unknown keypress, code 0x%llx\n", __func__, | |
1562 | (panel_key ? be64_to_cpu(panel_key) : | |
1563 | be32_to_cpu(remote_key))); | |
1564 | return; | |
1565 | ||
1566 | not_input_data: | |
1567 | if (len != 8) { | |
1568 | dev_warn(dev, "imon %s: invalid incoming packet " | |
1569 | "size (len = %d, intf%d)\n", __func__, len, intf); | |
1570 | return; | |
1571 | } | |
1572 | ||
1573 | /* iMON 2.4G associate frame */ | |
1574 | if (buf[0] == 0x00 && | |
1575 | buf[2] == 0xFF && /* REFID */ | |
1576 | buf[3] == 0xFF && | |
1577 | buf[4] == 0xFF && | |
1578 | buf[5] == 0xFF && /* iMON 2.4G */ | |
1579 | ((buf[6] == 0x4E && buf[7] == 0xDF) || /* LT */ | |
1580 | (buf[6] == 0x5E && buf[7] == 0xDF))) { /* DT */ | |
1581 | dev_warn(dev, "%s: remote associated refid=%02X\n", | |
1582 | __func__, buf[1]); | |
f789bf40 | 1583 | ictx->rf_isassociating = false; |
21677cfc JW |
1584 | } |
1585 | } | |
1586 | ||
1587 | /** | |
1588 | * Callback function for USB core API: receive data | |
1589 | */ | |
1590 | static void usb_rx_callback_intf0(struct urb *urb) | |
1591 | { | |
1592 | struct imon_context *ictx; | |
1593 | int intfnum = 0; | |
1594 | ||
1595 | if (!urb) | |
1596 | return; | |
1597 | ||
1598 | ictx = (struct imon_context *)urb->context; | |
1599 | if (!ictx) | |
1600 | return; | |
1601 | ||
1602 | switch (urb->status) { | |
1603 | case -ENOENT: /* usbcore unlink successful! */ | |
1604 | return; | |
1605 | ||
1606 | case -ESHUTDOWN: /* transport endpoint was shut down */ | |
1607 | break; | |
1608 | ||
1609 | case 0: | |
1610 | imon_incoming_packet(ictx, urb, intfnum); | |
1611 | break; | |
1612 | ||
1613 | default: | |
1614 | dev_warn(ictx->dev, "imon %s: status(%d): ignored\n", | |
1615 | __func__, urb->status); | |
1616 | break; | |
1617 | } | |
1618 | ||
1619 | usb_submit_urb(ictx->rx_urb_intf0, GFP_ATOMIC); | |
1620 | } | |
1621 | ||
1622 | static void usb_rx_callback_intf1(struct urb *urb) | |
1623 | { | |
1624 | struct imon_context *ictx; | |
1625 | int intfnum = 1; | |
1626 | ||
1627 | if (!urb) | |
1628 | return; | |
1629 | ||
1630 | ictx = (struct imon_context *)urb->context; | |
1631 | if (!ictx) | |
1632 | return; | |
1633 | ||
1634 | switch (urb->status) { | |
1635 | case -ENOENT: /* usbcore unlink successful! */ | |
1636 | return; | |
1637 | ||
1638 | case -ESHUTDOWN: /* transport endpoint was shut down */ | |
1639 | break; | |
1640 | ||
1641 | case 0: | |
1642 | imon_incoming_packet(ictx, urb, intfnum); | |
1643 | break; | |
1644 | ||
1645 | default: | |
1646 | dev_warn(ictx->dev, "imon %s: status(%d): ignored\n", | |
1647 | __func__, urb->status); | |
1648 | break; | |
1649 | } | |
1650 | ||
1651 | usb_submit_urb(ictx->rx_urb_intf1, GFP_ATOMIC); | |
1652 | } | |
1653 | ||
1654 | static struct input_dev *imon_init_idev(struct imon_context *ictx) | |
1655 | { | |
1656 | struct input_dev *idev; | |
1657 | struct ir_dev_props *props; | |
21677cfc | 1658 | int ret, i; |
21677cfc JW |
1659 | |
1660 | idev = input_allocate_device(); | |
1661 | if (!idev) { | |
1662 | dev_err(ictx->dev, "remote input dev allocation failed\n"); | |
1663 | goto idev_alloc_failed; | |
1664 | } | |
1665 | ||
1666 | props = kzalloc(sizeof(struct ir_dev_props), GFP_KERNEL); | |
1667 | if (!props) { | |
1668 | dev_err(ictx->dev, "remote ir dev props allocation failed\n"); | |
1669 | goto props_alloc_failed; | |
1670 | } | |
1671 | ||
21677cfc JW |
1672 | snprintf(ictx->name_idev, sizeof(ictx->name_idev), |
1673 | "iMON Remote (%04x:%04x)", ictx->vendor, ictx->product); | |
1674 | idev->name = ictx->name_idev; | |
1675 | ||
1676 | usb_make_path(ictx->usbdev_intf0, ictx->phys_idev, | |
1677 | sizeof(ictx->phys_idev)); | |
1678 | strlcat(ictx->phys_idev, "/input0", sizeof(ictx->phys_idev)); | |
1679 | idev->phys = ictx->phys_idev; | |
1680 | ||
db190fc1 | 1681 | idev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP) | BIT_MASK(EV_REL); |
21677cfc JW |
1682 | |
1683 | idev->keybit[BIT_WORD(BTN_MOUSE)] = | |
1684 | BIT_MASK(BTN_LEFT) | BIT_MASK(BTN_RIGHT); | |
1685 | idev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y) | | |
1686 | BIT_MASK(REL_WHEEL); | |
1687 | ||
1688 | /* panel and/or knob code support */ | |
1689 | for (i = 0; i < ARRAY_SIZE(imon_panel_key_table); i++) { | |
1690 | u32 kc = imon_panel_key_table[i].keycode; | |
1691 | __set_bit(kc, idev->keybit); | |
1692 | } | |
1693 | ||
6718e8ad | 1694 | props->priv = ictx; |
21677cfc | 1695 | props->driver_type = RC_DRIVER_SCANCODE; |
6718e8ad JW |
1696 | /* IR_TYPE_OTHER maps to iMON PAD remote, IR_TYPE_RC6 to MCE remote */ |
1697 | props->allowed_protos = IR_TYPE_OTHER | IR_TYPE_RC6; | |
1698 | props->change_protocol = imon_ir_change_protocol; | |
1699 | ictx->props = props; | |
21677cfc | 1700 | |
21677cfc JW |
1701 | usb_to_input_id(ictx->usbdev_intf0, &idev->id); |
1702 | idev->dev.parent = ictx->dev; | |
1703 | ||
6718e8ad | 1704 | ret = ir_input_register(idev, RC_MAP_IMON_PAD, props, MOD_NAME); |
21677cfc JW |
1705 | if (ret < 0) { |
1706 | dev_err(ictx->dev, "remote input dev register failed\n"); | |
1707 | goto idev_register_failed; | |
1708 | } | |
1709 | ||
1710 | return idev; | |
1711 | ||
1712 | idev_register_failed: | |
21677cfc JW |
1713 | kfree(props); |
1714 | props_alloc_failed: | |
1715 | input_free_device(idev); | |
1716 | idev_alloc_failed: | |
1717 | ||
1718 | return NULL; | |
1719 | } | |
1720 | ||
1721 | static struct input_dev *imon_init_touch(struct imon_context *ictx) | |
1722 | { | |
1723 | struct input_dev *touch; | |
1724 | int ret; | |
1725 | ||
1726 | touch = input_allocate_device(); | |
1727 | if (!touch) { | |
1728 | dev_err(ictx->dev, "touchscreen input dev allocation failed\n"); | |
1729 | goto touch_alloc_failed; | |
1730 | } | |
1731 | ||
1732 | snprintf(ictx->name_touch, sizeof(ictx->name_touch), | |
1733 | "iMON USB Touchscreen (%04x:%04x)", | |
1734 | ictx->vendor, ictx->product); | |
1735 | touch->name = ictx->name_touch; | |
1736 | ||
1737 | usb_make_path(ictx->usbdev_intf1, ictx->phys_touch, | |
1738 | sizeof(ictx->phys_touch)); | |
1739 | strlcat(ictx->phys_touch, "/input1", sizeof(ictx->phys_touch)); | |
1740 | touch->phys = ictx->phys_touch; | |
1741 | ||
1742 | touch->evbit[0] = | |
1743 | BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS); | |
1744 | touch->keybit[BIT_WORD(BTN_TOUCH)] = | |
1745 | BIT_MASK(BTN_TOUCH); | |
1746 | input_set_abs_params(touch, ABS_X, | |
1747 | 0x00, 0xfff, 0, 0); | |
1748 | input_set_abs_params(touch, ABS_Y, | |
1749 | 0x00, 0xfff, 0, 0); | |
1750 | ||
1751 | input_set_drvdata(touch, ictx); | |
1752 | ||
1753 | usb_to_input_id(ictx->usbdev_intf1, &touch->id); | |
1754 | touch->dev.parent = ictx->dev; | |
1755 | ret = input_register_device(touch); | |
1756 | if (ret < 0) { | |
1757 | dev_info(ictx->dev, "touchscreen input dev register failed\n"); | |
1758 | goto touch_register_failed; | |
1759 | } | |
1760 | ||
1761 | return touch; | |
1762 | ||
1763 | touch_register_failed: | |
1764 | input_free_device(ictx->touch); | |
21677cfc JW |
1765 | |
1766 | touch_alloc_failed: | |
1767 | return NULL; | |
1768 | } | |
1769 | ||
1770 | static bool imon_find_endpoints(struct imon_context *ictx, | |
1771 | struct usb_host_interface *iface_desc) | |
1772 | { | |
1773 | struct usb_endpoint_descriptor *ep; | |
1774 | struct usb_endpoint_descriptor *rx_endpoint = NULL; | |
1775 | struct usb_endpoint_descriptor *tx_endpoint = NULL; | |
1776 | int ifnum = iface_desc->desc.bInterfaceNumber; | |
1777 | int num_endpts = iface_desc->desc.bNumEndpoints; | |
1778 | int i, ep_dir, ep_type; | |
f789bf40 JW |
1779 | bool ir_ep_found = false; |
1780 | bool display_ep_found = false; | |
1781 | bool tx_control = false; | |
21677cfc JW |
1782 | |
1783 | /* | |
1784 | * Scan the endpoint list and set: | |
1785 | * first input endpoint = IR endpoint | |
1786 | * first output endpoint = display endpoint | |
1787 | */ | |
1788 | for (i = 0; i < num_endpts && !(ir_ep_found && display_ep_found); ++i) { | |
1789 | ep = &iface_desc->endpoint[i].desc; | |
1790 | ep_dir = ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK; | |
1791 | ep_type = ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK; | |
1792 | ||
1793 | if (!ir_ep_found && ep_dir == USB_DIR_IN && | |
1794 | ep_type == USB_ENDPOINT_XFER_INT) { | |
1795 | ||
1796 | rx_endpoint = ep; | |
f789bf40 | 1797 | ir_ep_found = true; |
21677cfc JW |
1798 | dev_dbg(ictx->dev, "%s: found IR endpoint\n", __func__); |
1799 | ||
1800 | } else if (!display_ep_found && ep_dir == USB_DIR_OUT && | |
1801 | ep_type == USB_ENDPOINT_XFER_INT) { | |
1802 | tx_endpoint = ep; | |
f789bf40 | 1803 | display_ep_found = true; |
21677cfc JW |
1804 | dev_dbg(ictx->dev, "%s: found display endpoint\n", __func__); |
1805 | } | |
1806 | } | |
1807 | ||
1808 | if (ifnum == 0) { | |
1809 | ictx->rx_endpoint_intf0 = rx_endpoint; | |
1810 | /* | |
1811 | * tx is used to send characters to lcd/vfd, associate RF | |
1812 | * remotes, set IR protocol, and maybe more... | |
1813 | */ | |
1814 | ictx->tx_endpoint = tx_endpoint; | |
1815 | } else { | |
1816 | ictx->rx_endpoint_intf1 = rx_endpoint; | |
1817 | } | |
1818 | ||
1819 | /* | |
1820 | * If we didn't find a display endpoint, this is probably one of the | |
1821 | * newer iMON devices that use control urb instead of interrupt | |
1822 | */ | |
1823 | if (!display_ep_found) { | |
f789bf40 JW |
1824 | tx_control = true; |
1825 | display_ep_found = true; | |
21677cfc JW |
1826 | dev_dbg(ictx->dev, "%s: device uses control endpoint, not " |
1827 | "interface OUT endpoint\n", __func__); | |
1828 | } | |
1829 | ||
1830 | /* | |
1831 | * Some iMON receivers have no display. Unfortunately, it seems | |
1832 | * that SoundGraph recycles device IDs between devices both with | |
1833 | * and without... :\ | |
1834 | */ | |
1835 | if (ictx->display_type == IMON_DISPLAY_TYPE_NONE) { | |
f789bf40 | 1836 | display_ep_found = false; |
21677cfc JW |
1837 | dev_dbg(ictx->dev, "%s: device has no display\n", __func__); |
1838 | } | |
1839 | ||
1840 | /* | |
1841 | * iMON Touch devices have a VGA touchscreen, but no "display", as | |
1842 | * that refers to e.g. /dev/lcd0 (a character device LCD or VFD). | |
1843 | */ | |
1844 | if (ictx->display_type == IMON_DISPLAY_TYPE_VGA) { | |
f789bf40 | 1845 | display_ep_found = false; |
21677cfc JW |
1846 | dev_dbg(ictx->dev, "%s: iMON Touch device found\n", __func__); |
1847 | } | |
1848 | ||
1849 | /* Input endpoint is mandatory */ | |
1850 | if (!ir_ep_found) | |
1851 | err("%s: no valid input (IR) endpoint found.", __func__); | |
1852 | ||
1853 | ictx->tx_control = tx_control; | |
1854 | ||
1855 | if (display_ep_found) | |
1856 | ictx->display_supported = true; | |
1857 | ||
1858 | return ir_ep_found; | |
1859 | ||
1860 | } | |
1861 | ||
1862 | static struct imon_context *imon_init_intf0(struct usb_interface *intf) | |
1863 | { | |
1864 | struct imon_context *ictx; | |
1865 | struct urb *rx_urb; | |
1866 | struct urb *tx_urb; | |
1867 | struct device *dev = &intf->dev; | |
1868 | struct usb_host_interface *iface_desc; | |
1f71baef | 1869 | int ret = -ENOMEM; |
21677cfc JW |
1870 | |
1871 | ictx = kzalloc(sizeof(struct imon_context), GFP_KERNEL); | |
1872 | if (!ictx) { | |
1873 | dev_err(dev, "%s: kzalloc failed for context", __func__); | |
1874 | goto exit; | |
1875 | } | |
1876 | rx_urb = usb_alloc_urb(0, GFP_KERNEL); | |
1877 | if (!rx_urb) { | |
1878 | dev_err(dev, "%s: usb_alloc_urb failed for IR urb", __func__); | |
1879 | goto rx_urb_alloc_failed; | |
1880 | } | |
1881 | tx_urb = usb_alloc_urb(0, GFP_KERNEL); | |
1882 | if (!tx_urb) { | |
1883 | dev_err(dev, "%s: usb_alloc_urb failed for display urb", | |
1884 | __func__); | |
1885 | goto tx_urb_alloc_failed; | |
1886 | } | |
1887 | ||
1888 | mutex_init(&ictx->lock); | |
1889 | ||
1890 | mutex_lock(&ictx->lock); | |
1891 | ||
1892 | ictx->dev = dev; | |
1893 | ictx->usbdev_intf0 = usb_get_dev(interface_to_usbdev(intf)); | |
f789bf40 | 1894 | ictx->dev_present_intf0 = true; |
21677cfc JW |
1895 | ictx->rx_urb_intf0 = rx_urb; |
1896 | ictx->tx_urb = tx_urb; | |
bbe4690f | 1897 | ictx->rf_device = false; |
21677cfc JW |
1898 | |
1899 | ictx->vendor = le16_to_cpu(ictx->usbdev_intf0->descriptor.idVendor); | |
1900 | ictx->product = le16_to_cpu(ictx->usbdev_intf0->descriptor.idProduct); | |
1901 | ||
1f71baef | 1902 | ret = -ENODEV; |
21677cfc | 1903 | iface_desc = intf->cur_altsetting; |
1f71baef | 1904 | if (!imon_find_endpoints(ictx, iface_desc)) { |
21677cfc | 1905 | goto find_endpoint_failed; |
1f71baef | 1906 | } |
21677cfc JW |
1907 | |
1908 | ictx->idev = imon_init_idev(ictx); | |
1909 | if (!ictx->idev) { | |
1910 | dev_err(dev, "%s: input device setup failed\n", __func__); | |
1911 | goto idev_setup_failed; | |
1912 | } | |
1913 | ||
1914 | usb_fill_int_urb(ictx->rx_urb_intf0, ictx->usbdev_intf0, | |
1915 | usb_rcvintpipe(ictx->usbdev_intf0, | |
1916 | ictx->rx_endpoint_intf0->bEndpointAddress), | |
1917 | ictx->usb_rx_buf, sizeof(ictx->usb_rx_buf), | |
1918 | usb_rx_callback_intf0, ictx, | |
1919 | ictx->rx_endpoint_intf0->bInterval); | |
1920 | ||
1921 | ret = usb_submit_urb(ictx->rx_urb_intf0, GFP_KERNEL); | |
1922 | if (ret) { | |
1923 | err("%s: usb_submit_urb failed for intf0 (%d)", | |
1924 | __func__, ret); | |
1925 | goto urb_submit_failed; | |
1926 | } | |
1927 | ||
1928 | return ictx; | |
1929 | ||
1930 | urb_submit_failed: | |
8a3fa812 | 1931 | ir_input_unregister(ictx->idev); |
21677cfc JW |
1932 | idev_setup_failed: |
1933 | find_endpoint_failed: | |
1934 | mutex_unlock(&ictx->lock); | |
1935 | usb_free_urb(tx_urb); | |
1936 | tx_urb_alloc_failed: | |
1937 | usb_free_urb(rx_urb); | |
1938 | rx_urb_alloc_failed: | |
1939 | kfree(ictx); | |
1940 | exit: | |
1941 | dev_err(dev, "unable to initialize intf0, err %d\n", ret); | |
1942 | ||
1943 | return NULL; | |
1944 | } | |
1945 | ||
1946 | static struct imon_context *imon_init_intf1(struct usb_interface *intf, | |
1947 | struct imon_context *ictx) | |
1948 | { | |
1949 | struct urb *rx_urb; | |
1950 | struct usb_host_interface *iface_desc; | |
1f71baef | 1951 | int ret = -ENOMEM; |
21677cfc JW |
1952 | |
1953 | rx_urb = usb_alloc_urb(0, GFP_KERNEL); | |
1954 | if (!rx_urb) { | |
1955 | err("%s: usb_alloc_urb failed for IR urb", __func__); | |
21677cfc JW |
1956 | goto rx_urb_alloc_failed; |
1957 | } | |
1958 | ||
1959 | mutex_lock(&ictx->lock); | |
1960 | ||
1961 | if (ictx->display_type == IMON_DISPLAY_TYPE_VGA) { | |
1962 | init_timer(&ictx->ttimer); | |
1963 | ictx->ttimer.data = (unsigned long)ictx; | |
1964 | ictx->ttimer.function = imon_touch_display_timeout; | |
1965 | } | |
1966 | ||
1967 | ictx->usbdev_intf1 = usb_get_dev(interface_to_usbdev(intf)); | |
f789bf40 | 1968 | ictx->dev_present_intf1 = true; |
21677cfc JW |
1969 | ictx->rx_urb_intf1 = rx_urb; |
1970 | ||
1f71baef | 1971 | ret = -ENODEV; |
21677cfc JW |
1972 | iface_desc = intf->cur_altsetting; |
1973 | if (!imon_find_endpoints(ictx, iface_desc)) | |
1974 | goto find_endpoint_failed; | |
1975 | ||
1976 | if (ictx->display_type == IMON_DISPLAY_TYPE_VGA) { | |
1977 | ictx->touch = imon_init_touch(ictx); | |
1978 | if (!ictx->touch) | |
1979 | goto touch_setup_failed; | |
1980 | } else | |
1981 | ictx->touch = NULL; | |
1982 | ||
1983 | usb_fill_int_urb(ictx->rx_urb_intf1, ictx->usbdev_intf1, | |
1984 | usb_rcvintpipe(ictx->usbdev_intf1, | |
1985 | ictx->rx_endpoint_intf1->bEndpointAddress), | |
1986 | ictx->usb_rx_buf, sizeof(ictx->usb_rx_buf), | |
1987 | usb_rx_callback_intf1, ictx, | |
1988 | ictx->rx_endpoint_intf1->bInterval); | |
1989 | ||
1990 | ret = usb_submit_urb(ictx->rx_urb_intf1, GFP_KERNEL); | |
1991 | ||
1992 | if (ret) { | |
1993 | err("%s: usb_submit_urb failed for intf1 (%d)", | |
1994 | __func__, ret); | |
1995 | goto urb_submit_failed; | |
1996 | } | |
1997 | ||
1998 | return ictx; | |
1999 | ||
2000 | urb_submit_failed: | |
20cd1959 | 2001 | if (ictx->touch) |
21677cfc | 2002 | input_unregister_device(ictx->touch); |
21677cfc JW |
2003 | touch_setup_failed: |
2004 | find_endpoint_failed: | |
2005 | mutex_unlock(&ictx->lock); | |
2006 | usb_free_urb(rx_urb); | |
2007 | rx_urb_alloc_failed: | |
2008 | dev_err(ictx->dev, "unable to initialize intf0, err %d\n", ret); | |
2009 | ||
2010 | return NULL; | |
2011 | } | |
2012 | ||
2013 | /* | |
2014 | * The 0x15c2:0xffdc device ID was used for umpteen different imon | |
2015 | * devices, and all of them constantly spew interrupts, even when there | |
2016 | * is no actual data to report. However, byte 6 of this buffer looks like | |
2017 | * its unique across device variants, so we're trying to key off that to | |
2018 | * figure out which display type (if any) and what IR protocol the device | |
6718e8ad JW |
2019 | * actually supports. These devices have their IR protocol hard-coded into |
2020 | * their firmware, they can't be changed on the fly like the newer hardware. | |
21677cfc JW |
2021 | */ |
2022 | static void imon_get_ffdc_type(struct imon_context *ictx) | |
2023 | { | |
2024 | u8 ffdc_cfg_byte = ictx->usb_rx_buf[6]; | |
2025 | u8 detected_display_type = IMON_DISPLAY_TYPE_NONE; | |
6718e8ad | 2026 | u64 allowed_protos = IR_TYPE_OTHER; |
21677cfc JW |
2027 | |
2028 | switch (ffdc_cfg_byte) { | |
2029 | /* iMON Knob, no display, iMON IR + vol knob */ | |
2030 | case 0x21: | |
2031 | dev_info(ictx->dev, "0xffdc iMON Knob, iMON IR"); | |
2032 | ictx->display_supported = false; | |
2033 | break; | |
bbe4690f JW |
2034 | /* iMON 2.4G LT (usb stick), no display, iMON RF */ |
2035 | case 0x4e: | |
2036 | dev_info(ictx->dev, "0xffdc iMON 2.4G LT, iMON RF"); | |
2037 | ictx->display_supported = false; | |
2038 | ictx->rf_device = true; | |
2039 | break; | |
21677cfc JW |
2040 | /* iMON VFD, no IR (does have vol knob tho) */ |
2041 | case 0x35: | |
2042 | dev_info(ictx->dev, "0xffdc iMON VFD + knob, no IR"); | |
2043 | detected_display_type = IMON_DISPLAY_TYPE_VFD; | |
21677cfc JW |
2044 | break; |
2045 | /* iMON VFD, iMON IR */ | |
2046 | case 0x24: | |
2047 | case 0x85: | |
2048 | dev_info(ictx->dev, "0xffdc iMON VFD, iMON IR"); | |
2049 | detected_display_type = IMON_DISPLAY_TYPE_VFD; | |
2050 | break; | |
2051 | /* iMON LCD, MCE IR */ | |
49da8be5 | 2052 | case 0x9e: |
21677cfc JW |
2053 | case 0x9f: |
2054 | dev_info(ictx->dev, "0xffdc iMON LCD, MCE IR"); | |
2055 | detected_display_type = IMON_DISPLAY_TYPE_LCD; | |
6718e8ad | 2056 | allowed_protos = IR_TYPE_RC6; |
21677cfc JW |
2057 | break; |
2058 | default: | |
2059 | dev_info(ictx->dev, "Unknown 0xffdc device, " | |
2060 | "defaulting to VFD and iMON IR"); | |
2061 | detected_display_type = IMON_DISPLAY_TYPE_VFD; | |
2062 | break; | |
2063 | } | |
2064 | ||
6718e8ad | 2065 | printk(KERN_CONT " (id 0x%02x)\n", ffdc_cfg_byte); |
21677cfc JW |
2066 | |
2067 | ictx->display_type = detected_display_type; | |
6718e8ad JW |
2068 | ictx->props->allowed_protos = allowed_protos; |
2069 | ictx->ir_type = allowed_protos; | |
21677cfc JW |
2070 | } |
2071 | ||
2072 | static void imon_set_display_type(struct imon_context *ictx, | |
2073 | struct usb_interface *intf) | |
2074 | { | |
2075 | u8 configured_display_type = IMON_DISPLAY_TYPE_VFD; | |
2076 | ||
2077 | /* | |
2078 | * Try to auto-detect the type of display if the user hasn't set | |
2079 | * it by hand via the display_type modparam. Default is VFD. | |
2080 | */ | |
2081 | ||
2082 | if (display_type == IMON_DISPLAY_TYPE_AUTO) { | |
2083 | switch (ictx->product) { | |
2084 | case 0xffdc: | |
2085 | /* set in imon_get_ffdc_type() */ | |
2086 | configured_display_type = ictx->display_type; | |
2087 | break; | |
2088 | case 0x0034: | |
2089 | case 0x0035: | |
2090 | configured_display_type = IMON_DISPLAY_TYPE_VGA; | |
2091 | break; | |
2092 | case 0x0038: | |
2093 | case 0x0039: | |
2094 | case 0x0045: | |
2095 | configured_display_type = IMON_DISPLAY_TYPE_LCD; | |
2096 | break; | |
2097 | case 0x003c: | |
2098 | case 0x0041: | |
2099 | case 0x0042: | |
2100 | case 0x0043: | |
2101 | configured_display_type = IMON_DISPLAY_TYPE_NONE; | |
2102 | ictx->display_supported = false; | |
2103 | break; | |
2104 | case 0x0036: | |
2105 | case 0x0044: | |
2106 | default: | |
2107 | configured_display_type = IMON_DISPLAY_TYPE_VFD; | |
2108 | break; | |
2109 | } | |
2110 | } else { | |
2111 | configured_display_type = display_type; | |
2112 | if (display_type == IMON_DISPLAY_TYPE_NONE) | |
2113 | ictx->display_supported = false; | |
2114 | else | |
2115 | ictx->display_supported = true; | |
2116 | dev_info(ictx->dev, "%s: overriding display type to %d via " | |
2117 | "modparam\n", __func__, display_type); | |
2118 | } | |
2119 | ||
2120 | ictx->display_type = configured_display_type; | |
2121 | } | |
2122 | ||
2123 | static void imon_init_display(struct imon_context *ictx, | |
2124 | struct usb_interface *intf) | |
2125 | { | |
2126 | int ret; | |
2127 | ||
2128 | dev_dbg(ictx->dev, "Registering iMON display with sysfs\n"); | |
2129 | ||
2130 | /* set up sysfs entry for built-in clock */ | |
2131 | ret = sysfs_create_group(&intf->dev.kobj, | |
2132 | &imon_display_attribute_group); | |
2133 | if (ret) | |
2134 | dev_err(ictx->dev, "Could not create display sysfs " | |
2135 | "entries(%d)", ret); | |
2136 | ||
2137 | if (ictx->display_type == IMON_DISPLAY_TYPE_LCD) | |
2138 | ret = usb_register_dev(intf, &imon_lcd_class); | |
2139 | else | |
2140 | ret = usb_register_dev(intf, &imon_vfd_class); | |
2141 | if (ret) | |
2142 | /* Not a fatal error, so ignore */ | |
2143 | dev_info(ictx->dev, "could not get a minor number for " | |
2144 | "display\n"); | |
2145 | ||
2146 | } | |
2147 | ||
2148 | /** | |
2149 | * Callback function for USB core API: Probe | |
2150 | */ | |
2151 | static int __devinit imon_probe(struct usb_interface *interface, | |
2152 | const struct usb_device_id *id) | |
2153 | { | |
2154 | struct usb_device *usbdev = NULL; | |
2155 | struct usb_host_interface *iface_desc = NULL; | |
2156 | struct usb_interface *first_if; | |
2157 | struct device *dev = &interface->dev; | |
2158 | int ifnum, code_length, sysfs_err; | |
2159 | int ret = 0; | |
2160 | struct imon_context *ictx = NULL; | |
2161 | struct imon_context *first_if_ctx = NULL; | |
2162 | u16 vendor, product; | |
2163 | const unsigned char fp_packet[] = { 0x40, 0x00, 0x00, 0x00, | |
2164 | 0x00, 0x00, 0x00, 0x88 }; | |
2165 | ||
2166 | code_length = BUF_CHUNK_SIZE * 8; | |
2167 | ||
2168 | usbdev = usb_get_dev(interface_to_usbdev(interface)); | |
2169 | iface_desc = interface->cur_altsetting; | |
2170 | ifnum = iface_desc->desc.bInterfaceNumber; | |
2171 | vendor = le16_to_cpu(usbdev->descriptor.idVendor); | |
2172 | product = le16_to_cpu(usbdev->descriptor.idProduct); | |
2173 | ||
2174 | dev_dbg(dev, "%s: found iMON device (%04x:%04x, intf%d)\n", | |
2175 | __func__, vendor, product, ifnum); | |
2176 | ||
2177 | /* prevent races probing devices w/multiple interfaces */ | |
2178 | mutex_lock(&driver_lock); | |
2179 | ||
2180 | first_if = usb_ifnum_to_if(usbdev, 0); | |
2181 | first_if_ctx = (struct imon_context *)usb_get_intfdata(first_if); | |
2182 | ||
2183 | if (ifnum == 0) { | |
2184 | ictx = imon_init_intf0(interface); | |
2185 | if (!ictx) { | |
2186 | err("%s: failed to initialize context!\n", __func__); | |
2187 | ret = -ENODEV; | |
2188 | goto fail; | |
2189 | } | |
2190 | ||
21677cfc JW |
2191 | } else { |
2192 | /* this is the secondary interface on the device */ | |
2193 | ictx = imon_init_intf1(interface, first_if_ctx); | |
2194 | if (!ictx) { | |
2195 | err("%s: failed to attach to context!\n", __func__); | |
2196 | ret = -ENODEV; | |
2197 | goto fail; | |
2198 | } | |
2199 | ||
2200 | } | |
2201 | ||
2202 | usb_set_intfdata(interface, ictx); | |
2203 | ||
2204 | if (ifnum == 0) { | |
2205 | /* Enable front-panel buttons and/or knobs */ | |
2206 | memcpy(ictx->usb_tx_buf, &fp_packet, sizeof(fp_packet)); | |
2207 | ret = send_packet(ictx); | |
2208 | /* Not fatal, but warn about it */ | |
2209 | if (ret) | |
2210 | dev_info(dev, "failed to enable panel buttons " | |
2211 | "and/or knobs\n"); | |
2212 | ||
2213 | if (product == 0xffdc) | |
2214 | imon_get_ffdc_type(ictx); | |
21677cfc JW |
2215 | |
2216 | imon_set_display_type(ictx, interface); | |
2217 | ||
bbe4690f JW |
2218 | if (product == 0xffdc && ictx->rf_device) { |
2219 | sysfs_err = sysfs_create_group(&interface->dev.kobj, | |
2220 | &imon_rf_attribute_group); | |
2221 | if (sysfs_err) | |
2222 | err("%s: Could not create RF sysfs entries(%d)", | |
2223 | __func__, sysfs_err); | |
2224 | } | |
2225 | ||
21677cfc JW |
2226 | if (ictx->display_supported) |
2227 | imon_init_display(ictx, interface); | |
2228 | } | |
2229 | ||
2230 | /* set IR protocol/remote type */ | |
6718e8ad JW |
2231 | ret = imon_ir_change_protocol(ictx, ictx->ir_type); |
2232 | if (ret) { | |
2233 | dev_warn(dev, "%s: failed to set IR protocol, falling back " | |
2234 | "to standard iMON protocol mode\n", __func__); | |
2235 | ictx->ir_type = IR_TYPE_OTHER; | |
2236 | } | |
21677cfc JW |
2237 | |
2238 | dev_info(dev, "iMON device (%04x:%04x, intf%d) on " | |
2239 | "usb<%d:%d> initialized\n", vendor, product, ifnum, | |
2240 | usbdev->bus->busnum, usbdev->devnum); | |
2241 | ||
2242 | mutex_unlock(&ictx->lock); | |
2243 | mutex_unlock(&driver_lock); | |
2244 | ||
2245 | return 0; | |
2246 | ||
2247 | fail: | |
2248 | mutex_unlock(&driver_lock); | |
2249 | dev_err(dev, "unable to register, err %d\n", ret); | |
2250 | ||
2251 | return ret; | |
2252 | } | |
2253 | ||
2254 | /** | |
2255 | * Callback function for USB core API: disconnect | |
2256 | */ | |
2257 | static void __devexit imon_disconnect(struct usb_interface *interface) | |
2258 | { | |
2259 | struct imon_context *ictx; | |
2260 | struct device *dev; | |
2261 | int ifnum; | |
2262 | ||
2263 | /* prevent races with multi-interface device probing and display_open */ | |
2264 | mutex_lock(&driver_lock); | |
2265 | ||
2266 | ictx = usb_get_intfdata(interface); | |
2267 | dev = ictx->dev; | |
2268 | ifnum = interface->cur_altsetting->desc.bInterfaceNumber; | |
2269 | ||
2270 | mutex_lock(&ictx->lock); | |
2271 | ||
2272 | /* | |
2273 | * sysfs_remove_group is safe to call even if sysfs_create_group | |
2274 | * hasn't been called | |
2275 | */ | |
2276 | sysfs_remove_group(&interface->dev.kobj, | |
2277 | &imon_display_attribute_group); | |
2278 | sysfs_remove_group(&interface->dev.kobj, | |
2279 | &imon_rf_attribute_group); | |
2280 | ||
2281 | usb_set_intfdata(interface, NULL); | |
2282 | ||
2283 | /* Abort ongoing write */ | |
2284 | if (ictx->tx.busy) { | |
2285 | usb_kill_urb(ictx->tx_urb); | |
2286 | complete_all(&ictx->tx.finished); | |
2287 | } | |
2288 | ||
2289 | if (ifnum == 0) { | |
f789bf40 | 2290 | ictx->dev_present_intf0 = false; |
21677cfc | 2291 | usb_kill_urb(ictx->rx_urb_intf0); |
8a3fa812 | 2292 | ir_input_unregister(ictx->idev); |
21677cfc JW |
2293 | if (ictx->display_supported) { |
2294 | if (ictx->display_type == IMON_DISPLAY_TYPE_LCD) | |
2295 | usb_deregister_dev(interface, &imon_lcd_class); | |
2296 | else | |
2297 | usb_deregister_dev(interface, &imon_vfd_class); | |
2298 | } | |
2299 | } else { | |
f789bf40 | 2300 | ictx->dev_present_intf1 = false; |
21677cfc JW |
2301 | usb_kill_urb(ictx->rx_urb_intf1); |
2302 | if (ictx->display_type == IMON_DISPLAY_TYPE_VGA) | |
2303 | input_unregister_device(ictx->touch); | |
2304 | } | |
2305 | ||
2306 | if (!ictx->dev_present_intf0 && !ictx->dev_present_intf1) { | |
2307 | if (ictx->display_type == IMON_DISPLAY_TYPE_VGA) | |
2308 | del_timer_sync(&ictx->ttimer); | |
2309 | mutex_unlock(&ictx->lock); | |
2310 | if (!ictx->display_isopen) | |
2311 | free_imon_context(ictx); | |
2312 | } else { | |
6718e8ad | 2313 | if (ictx->ir_type == IR_TYPE_RC6) |
21677cfc JW |
2314 | del_timer_sync(&ictx->itimer); |
2315 | mutex_unlock(&ictx->lock); | |
2316 | } | |
2317 | ||
2318 | mutex_unlock(&driver_lock); | |
2319 | ||
2320 | dev_dbg(dev, "%s: iMON device (intf%d) disconnected\n", | |
2321 | __func__, ifnum); | |
2322 | } | |
2323 | ||
2324 | static int imon_suspend(struct usb_interface *intf, pm_message_t message) | |
2325 | { | |
2326 | struct imon_context *ictx = usb_get_intfdata(intf); | |
2327 | int ifnum = intf->cur_altsetting->desc.bInterfaceNumber; | |
2328 | ||
2329 | if (ifnum == 0) | |
2330 | usb_kill_urb(ictx->rx_urb_intf0); | |
2331 | else | |
2332 | usb_kill_urb(ictx->rx_urb_intf1); | |
2333 | ||
2334 | return 0; | |
2335 | } | |
2336 | ||
2337 | static int imon_resume(struct usb_interface *intf) | |
2338 | { | |
2339 | int rc = 0; | |
2340 | struct imon_context *ictx = usb_get_intfdata(intf); | |
2341 | int ifnum = intf->cur_altsetting->desc.bInterfaceNumber; | |
2342 | ||
2343 | if (ifnum == 0) { | |
2344 | usb_fill_int_urb(ictx->rx_urb_intf0, ictx->usbdev_intf0, | |
2345 | usb_rcvintpipe(ictx->usbdev_intf0, | |
2346 | ictx->rx_endpoint_intf0->bEndpointAddress), | |
2347 | ictx->usb_rx_buf, sizeof(ictx->usb_rx_buf), | |
2348 | usb_rx_callback_intf0, ictx, | |
2349 | ictx->rx_endpoint_intf0->bInterval); | |
2350 | ||
2351 | rc = usb_submit_urb(ictx->rx_urb_intf0, GFP_ATOMIC); | |
2352 | ||
2353 | } else { | |
2354 | usb_fill_int_urb(ictx->rx_urb_intf1, ictx->usbdev_intf1, | |
2355 | usb_rcvintpipe(ictx->usbdev_intf1, | |
2356 | ictx->rx_endpoint_intf1->bEndpointAddress), | |
2357 | ictx->usb_rx_buf, sizeof(ictx->usb_rx_buf), | |
2358 | usb_rx_callback_intf1, ictx, | |
2359 | ictx->rx_endpoint_intf1->bInterval); | |
2360 | ||
2361 | rc = usb_submit_urb(ictx->rx_urb_intf1, GFP_ATOMIC); | |
2362 | } | |
2363 | ||
2364 | return rc; | |
2365 | } | |
2366 | ||
2367 | static int __init imon_init(void) | |
2368 | { | |
2369 | int rc; | |
2370 | ||
2371 | rc = usb_register(&imon_driver); | |
2372 | if (rc) { | |
2373 | err("%s: usb register failed(%d)", __func__, rc); | |
2374 | rc = -ENODEV; | |
2375 | } | |
2376 | ||
2377 | return rc; | |
2378 | } | |
2379 | ||
2380 | static void __exit imon_exit(void) | |
2381 | { | |
2382 | usb_deregister(&imon_driver); | |
2383 | } | |
2384 | ||
2385 | module_init(imon_init); | |
2386 | module_exit(imon_exit); |