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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. | |
21677cfc JW |
23 | */ |
24 | ||
e2302501 JP |
25 | #define pr_fmt(fmt) KBUILD_MODNAME ":%s: " fmt, __func__ |
26 | ||
21677cfc JW |
27 | #include <linux/errno.h> |
28 | #include <linux/init.h> | |
29 | #include <linux/kernel.h> | |
30 | #include <linux/module.h> | |
31 | #include <linux/slab.h> | |
32 | #include <linux/uaccess.h> | |
47a09b08 | 33 | #include <linux/ratelimit.h> |
21677cfc JW |
34 | |
35 | #include <linux/input.h> | |
36 | #include <linux/usb.h> | |
37 | #include <linux/usb/input.h> | |
6bda9644 | 38 | #include <media/rc-core.h> |
21677cfc JW |
39 | |
40 | #include <linux/time.h> | |
41 | #include <linux/timer.h> | |
42 | ||
43 | #define MOD_AUTHOR "Jarod Wilson <jarod@wilsonet.com>" | |
44 | #define MOD_DESC "Driver for SoundGraph iMON MultiMedia IR/Display" | |
45 | #define MOD_NAME "imon" | |
8791d63a | 46 | #define MOD_VERSION "0.9.4" |
21677cfc JW |
47 | |
48 | #define DISPLAY_MINOR_BASE 144 | |
49 | #define DEVICE_NAME "lcd%d" | |
50 | ||
51 | #define BUF_CHUNK_SIZE 8 | |
52 | #define BUF_SIZE 128 | |
53 | ||
54 | #define BIT_DURATION 250 /* each bit received is 250us */ | |
55 | ||
56 | #define IMON_CLOCK_ENABLE_PACKETS 2 | |
21677cfc JW |
57 | |
58 | /*** P R O T O T Y P E S ***/ | |
59 | ||
60 | /* USB Callback prototypes */ | |
61 | static int imon_probe(struct usb_interface *interface, | |
62 | const struct usb_device_id *id); | |
63 | static void imon_disconnect(struct usb_interface *interface); | |
64 | static void usb_rx_callback_intf0(struct urb *urb); | |
65 | static void usb_rx_callback_intf1(struct urb *urb); | |
66 | static void usb_tx_callback(struct urb *urb); | |
67 | ||
68 | /* suspend/resume support */ | |
69 | static int imon_resume(struct usb_interface *intf); | |
70 | static int imon_suspend(struct usb_interface *intf, pm_message_t message); | |
71 | ||
72 | /* Display file_operations function prototypes */ | |
73 | static int display_open(struct inode *inode, struct file *file); | |
74 | static int display_close(struct inode *inode, struct file *file); | |
75 | ||
76 | /* VFD write operation */ | |
d6740d86 | 77 | static ssize_t vfd_write(struct file *file, const char __user *buf, |
21677cfc JW |
78 | size_t n_bytes, loff_t *pos); |
79 | ||
80 | /* LCD file_operations override function prototypes */ | |
d6740d86 | 81 | static ssize_t lcd_write(struct file *file, const char __user *buf, |
21677cfc JW |
82 | size_t n_bytes, loff_t *pos); |
83 | ||
84 | /*** G L O B A L S ***/ | |
85 | ||
0d8053f2 UE |
86 | struct imon_panel_key_table { |
87 | u64 hw_code; | |
88 | u32 keycode; | |
89 | }; | |
90 | ||
91 | struct imon_usb_dev_descr { | |
92 | __u16 flags; | |
93 | #define IMON_NO_FLAGS 0 | |
94 | #define IMON_NEED_20MS_PKT_DELAY 1 | |
f41003a2 | 95 | #define IMON_IR_RAW 2 |
0d8053f2 UE |
96 | struct imon_panel_key_table key_table[]; |
97 | }; | |
98 | ||
21677cfc JW |
99 | struct imon_context { |
100 | struct device *dev; | |
21677cfc JW |
101 | /* Newer devices have two interfaces */ |
102 | struct usb_device *usbdev_intf0; | |
103 | struct usb_device *usbdev_intf1; | |
104 | ||
105 | bool display_supported; /* not all controllers do */ | |
106 | bool display_isopen; /* display port has been opened */ | |
bbe4690f | 107 | bool rf_device; /* true if iMON 2.4G LT/DT RF device */ |
21677cfc JW |
108 | bool rf_isassociating; /* RF remote associating */ |
109 | bool dev_present_intf0; /* USB device presence, interface 0 */ | |
110 | bool dev_present_intf1; /* USB device presence, interface 1 */ | |
111 | ||
112 | struct mutex lock; /* to lock this object */ | |
113 | wait_queue_head_t remove_ok; /* For unexpected USB disconnects */ | |
114 | ||
115 | struct usb_endpoint_descriptor *rx_endpoint_intf0; | |
116 | struct usb_endpoint_descriptor *rx_endpoint_intf1; | |
117 | struct usb_endpoint_descriptor *tx_endpoint; | |
118 | struct urb *rx_urb_intf0; | |
119 | struct urb *rx_urb_intf1; | |
120 | struct urb *tx_urb; | |
121 | bool tx_control; | |
122 | unsigned char usb_rx_buf[8]; | |
123 | unsigned char usb_tx_buf[8]; | |
26ccbec4 | 124 | unsigned int send_packet_delay; |
21677cfc | 125 | |
f41003a2 SY |
126 | struct rx_data { |
127 | int count; /* length of 0 or 1 sequence */ | |
128 | int prev_bit; /* logic level of sequence */ | |
129 | int initial_space; /* initial space flag */ | |
130 | } rx; | |
131 | ||
21677cfc JW |
132 | struct tx_t { |
133 | unsigned char data_buf[35]; /* user data buffer */ | |
134 | struct completion finished; /* wait for write to finish */ | |
135 | bool busy; /* write in progress */ | |
136 | int status; /* status of tx completion */ | |
137 | } tx; | |
138 | ||
139 | u16 vendor; /* usb vendor ID */ | |
140 | u16 product; /* usb product ID */ | |
141 | ||
d8b4b582 | 142 | struct rc_dev *rdev; /* rc-core device for remote */ |
eaf2bcc9 | 143 | struct input_dev *idev; /* input device for panel & IR mouse */ |
21677cfc JW |
144 | struct input_dev *touch; /* input device for touchscreen */ |
145 | ||
693508df | 146 | spinlock_t kc_lock; /* make sure we get keycodes right */ |
21677cfc JW |
147 | u32 kc; /* current input keycode */ |
148 | u32 last_keycode; /* last reported input keycode */ | |
eaf2bcc9 DH |
149 | u32 rc_scancode; /* the computed remote scancode */ |
150 | u8 rc_toggle; /* the computed remote toggle bit */ | |
6d741bfe | 151 | u64 rc_proto; /* iMON or MCE (RC6) IR protocol? */ |
21677cfc JW |
152 | bool release_code; /* some keys send a release code */ |
153 | ||
154 | u8 display_type; /* store the display type */ | |
155 | bool pad_mouse; /* toggle kbd(0)/mouse(1) mode */ | |
156 | ||
eaf2bcc9 DH |
157 | char name_rdev[128]; /* rc input device name */ |
158 | char phys_rdev[64]; /* rc input device phys path */ | |
159 | ||
21677cfc JW |
160 | char name_idev[128]; /* input device name */ |
161 | char phys_idev[64]; /* input device phys path */ | |
21677cfc JW |
162 | |
163 | char name_touch[128]; /* touch screen name */ | |
164 | char phys_touch[64]; /* touch screen phys path */ | |
165 | struct timer_list ttimer; /* touch screen timer */ | |
166 | int touch_x; /* x coordinate on touchscreen */ | |
167 | int touch_y; /* y coordinate on touchscreen */ | |
0d8053f2 UE |
168 | struct imon_usb_dev_descr *dev_descr; /* device description with key |
169 | table for front panels */ | |
21677cfc JW |
170 | }; |
171 | ||
172 | #define TOUCH_TIMEOUT (HZ/30) | |
21677cfc JW |
173 | |
174 | /* vfd character device file operations */ | |
175 | static const struct file_operations vfd_fops = { | |
176 | .owner = THIS_MODULE, | |
177 | .open = &display_open, | |
178 | .write = &vfd_write, | |
6038f373 AB |
179 | .release = &display_close, |
180 | .llseek = noop_llseek, | |
21677cfc JW |
181 | }; |
182 | ||
183 | /* lcd character device file operations */ | |
184 | static const struct file_operations lcd_fops = { | |
185 | .owner = THIS_MODULE, | |
186 | .open = &display_open, | |
187 | .write = &lcd_write, | |
6038f373 AB |
188 | .release = &display_close, |
189 | .llseek = noop_llseek, | |
21677cfc JW |
190 | }; |
191 | ||
192 | enum { | |
193 | IMON_DISPLAY_TYPE_AUTO = 0, | |
194 | IMON_DISPLAY_TYPE_VFD = 1, | |
195 | IMON_DISPLAY_TYPE_LCD = 2, | |
196 | IMON_DISPLAY_TYPE_VGA = 3, | |
197 | IMON_DISPLAY_TYPE_NONE = 4, | |
198 | }; | |
199 | ||
21677cfc JW |
200 | enum { |
201 | IMON_KEY_IMON = 0, | |
202 | IMON_KEY_MCE = 1, | |
203 | IMON_KEY_PANEL = 2, | |
204 | }; | |
205 | ||
0d8053f2 UE |
206 | static struct usb_class_driver imon_vfd_class = { |
207 | .name = DEVICE_NAME, | |
208 | .fops = &vfd_fops, | |
209 | .minor_base = DISPLAY_MINOR_BASE, | |
210 | }; | |
211 | ||
212 | static struct usb_class_driver imon_lcd_class = { | |
213 | .name = DEVICE_NAME, | |
214 | .fops = &lcd_fops, | |
215 | .minor_base = DISPLAY_MINOR_BASE, | |
216 | }; | |
217 | ||
218 | /* imon receiver front panel/knob key table */ | |
219 | static const struct imon_usb_dev_descr imon_default_table = { | |
220 | .flags = IMON_NO_FLAGS, | |
221 | .key_table = { | |
222 | { 0x000000000f00ffeell, KEY_MEDIA }, /* Go */ | |
223 | { 0x000000001200ffeell, KEY_UP }, | |
224 | { 0x000000001300ffeell, KEY_DOWN }, | |
225 | { 0x000000001400ffeell, KEY_LEFT }, | |
226 | { 0x000000001500ffeell, KEY_RIGHT }, | |
227 | { 0x000000001600ffeell, KEY_ENTER }, | |
228 | { 0x000000001700ffeell, KEY_ESC }, | |
229 | { 0x000000001f00ffeell, KEY_AUDIO }, | |
230 | { 0x000000002000ffeell, KEY_VIDEO }, | |
231 | { 0x000000002100ffeell, KEY_CAMERA }, | |
232 | { 0x000000002700ffeell, KEY_DVD }, | |
233 | { 0x000000002300ffeell, KEY_TV }, | |
234 | { 0x000000002b00ffeell, KEY_EXIT }, | |
235 | { 0x000000002c00ffeell, KEY_SELECT }, | |
236 | { 0x000000002d00ffeell, KEY_MENU }, | |
237 | { 0x000000000500ffeell, KEY_PREVIOUS }, | |
238 | { 0x000000000700ffeell, KEY_REWIND }, | |
239 | { 0x000000000400ffeell, KEY_STOP }, | |
240 | { 0x000000003c00ffeell, KEY_PLAYPAUSE }, | |
241 | { 0x000000000800ffeell, KEY_FASTFORWARD }, | |
242 | { 0x000000000600ffeell, KEY_NEXT }, | |
243 | { 0x000000010000ffeell, KEY_RIGHT }, | |
244 | { 0x000001000000ffeell, KEY_LEFT }, | |
245 | { 0x000000003d00ffeell, KEY_SELECT }, | |
246 | { 0x000100000000ffeell, KEY_VOLUMEUP }, | |
247 | { 0x010000000000ffeell, KEY_VOLUMEDOWN }, | |
248 | { 0x000000000100ffeell, KEY_MUTE }, | |
249 | /* 0xffdc iMON MCE VFD */ | |
250 | { 0x00010000ffffffeell, KEY_VOLUMEUP }, | |
251 | { 0x01000000ffffffeell, KEY_VOLUMEDOWN }, | |
252 | { 0x00000001ffffffeell, KEY_MUTE }, | |
253 | { 0x0000000fffffffeell, KEY_MEDIA }, | |
254 | { 0x00000012ffffffeell, KEY_UP }, | |
255 | { 0x00000013ffffffeell, KEY_DOWN }, | |
256 | { 0x00000014ffffffeell, KEY_LEFT }, | |
257 | { 0x00000015ffffffeell, KEY_RIGHT }, | |
258 | { 0x00000016ffffffeell, KEY_ENTER }, | |
259 | { 0x00000017ffffffeell, KEY_ESC }, | |
260 | /* iMON Knob values */ | |
261 | { 0x000100ffffffffeell, KEY_VOLUMEUP }, | |
262 | { 0x010000ffffffffeell, KEY_VOLUMEDOWN }, | |
263 | { 0x000008ffffffffeell, KEY_MUTE }, | |
264 | { 0, KEY_RESERVED }, | |
265 | } | |
266 | }; | |
267 | ||
268 | static const struct imon_usb_dev_descr imon_OEM_VFD = { | |
269 | .flags = IMON_NEED_20MS_PKT_DELAY, | |
270 | .key_table = { | |
271 | { 0x000000000f00ffeell, KEY_MEDIA }, /* Go */ | |
272 | { 0x000000001200ffeell, KEY_UP }, | |
273 | { 0x000000001300ffeell, KEY_DOWN }, | |
274 | { 0x000000001400ffeell, KEY_LEFT }, | |
275 | { 0x000000001500ffeell, KEY_RIGHT }, | |
276 | { 0x000000001600ffeell, KEY_ENTER }, | |
277 | { 0x000000001700ffeell, KEY_ESC }, | |
278 | { 0x000000001f00ffeell, KEY_AUDIO }, | |
279 | { 0x000000002b00ffeell, KEY_EXIT }, | |
280 | { 0x000000002c00ffeell, KEY_SELECT }, | |
281 | { 0x000000002d00ffeell, KEY_MENU }, | |
282 | { 0x000000000500ffeell, KEY_PREVIOUS }, | |
283 | { 0x000000000700ffeell, KEY_REWIND }, | |
284 | { 0x000000000400ffeell, KEY_STOP }, | |
285 | { 0x000000003c00ffeell, KEY_PLAYPAUSE }, | |
286 | { 0x000000000800ffeell, KEY_FASTFORWARD }, | |
287 | { 0x000000000600ffeell, KEY_NEXT }, | |
288 | { 0x000000010000ffeell, KEY_RIGHT }, | |
289 | { 0x000001000000ffeell, KEY_LEFT }, | |
290 | { 0x000000003d00ffeell, KEY_SELECT }, | |
291 | { 0x000100000000ffeell, KEY_VOLUMEUP }, | |
292 | { 0x010000000000ffeell, KEY_VOLUMEDOWN }, | |
293 | { 0x000000000100ffeell, KEY_MUTE }, | |
294 | /* 0xffdc iMON MCE VFD */ | |
295 | { 0x00010000ffffffeell, KEY_VOLUMEUP }, | |
296 | { 0x01000000ffffffeell, KEY_VOLUMEDOWN }, | |
297 | { 0x00000001ffffffeell, KEY_MUTE }, | |
298 | { 0x0000000fffffffeell, KEY_MEDIA }, | |
299 | { 0x00000012ffffffeell, KEY_UP }, | |
300 | { 0x00000013ffffffeell, KEY_DOWN }, | |
301 | { 0x00000014ffffffeell, KEY_LEFT }, | |
302 | { 0x00000015ffffffeell, KEY_RIGHT }, | |
303 | { 0x00000016ffffffeell, KEY_ENTER }, | |
304 | { 0x00000017ffffffeell, KEY_ESC }, | |
305 | /* iMON Knob values */ | |
306 | { 0x000100ffffffffeell, KEY_VOLUMEUP }, | |
307 | { 0x010000ffffffffeell, KEY_VOLUMEDOWN }, | |
308 | { 0x000008ffffffffeell, KEY_MUTE }, | |
309 | { 0, KEY_RESERVED }, | |
310 | } | |
26ccbec4 KB |
311 | }; |
312 | ||
7b5fc071 UE |
313 | /* imon receiver front panel/knob key table for DH102*/ |
314 | static const struct imon_usb_dev_descr imon_DH102 = { | |
315 | .flags = IMON_NO_FLAGS, | |
316 | .key_table = { | |
317 | { 0x000100000000ffeell, KEY_VOLUMEUP }, | |
318 | { 0x010000000000ffeell, KEY_VOLUMEDOWN }, | |
319 | { 0x000000010000ffeell, KEY_MUTE }, | |
320 | { 0x0000000f0000ffeell, KEY_MEDIA }, | |
321 | { 0x000000120000ffeell, KEY_UP }, | |
322 | { 0x000000130000ffeell, KEY_DOWN }, | |
323 | { 0x000000140000ffeell, KEY_LEFT }, | |
324 | { 0x000000150000ffeell, KEY_RIGHT }, | |
325 | { 0x000000160000ffeell, KEY_ENTER }, | |
326 | { 0x000000170000ffeell, KEY_ESC }, | |
327 | { 0x0000002b0000ffeell, KEY_EXIT }, | |
328 | { 0x0000002c0000ffeell, KEY_SELECT }, | |
329 | { 0x0000002d0000ffeell, KEY_MENU }, | |
330 | { 0, KEY_RESERVED } | |
331 | } | |
332 | }; | |
333 | ||
f41003a2 SY |
334 | static const struct imon_usb_dev_descr imon_ir_raw = { |
335 | .flags = IMON_IR_RAW, | |
336 | }; | |
337 | ||
21677cfc JW |
338 | /* |
339 | * USB Device ID for iMON USB Control Boards | |
340 | * | |
341 | * The Windows drivers contain 6 different inf files, more or less one for | |
342 | * each new device until the 0x0034-0x0046 devices, which all use the same | |
343 | * driver. Some of the devices in the 34-46 range haven't been definitively | |
344 | * identified yet. Early devices have either a TriGem Computer, Inc. or a | |
345 | * Samsung vendor ID (0x0aa8 and 0x04e8 respectively), while all later | |
346 | * devices use the SoundGraph vendor ID (0x15c2). This driver only supports | |
347 | * the ffdc and later devices, which do onboard decoding. | |
348 | */ | |
5fad16b5 | 349 | static const struct usb_device_id imon_usb_id_table[] = { |
21677cfc JW |
350 | /* |
351 | * Several devices with this same device ID, all use iMON_PAD.inf | |
352 | * SoundGraph iMON PAD (IR & VFD) | |
353 | * SoundGraph iMON PAD (IR & LCD) | |
354 | * SoundGraph iMON Knob (IR only) | |
355 | */ | |
0d8053f2 UE |
356 | { USB_DEVICE(0x15c2, 0xffdc), |
357 | .driver_info = (unsigned long)&imon_default_table }, | |
21677cfc JW |
358 | |
359 | /* | |
360 | * Newer devices, all driven by the latest iMON Windows driver, full | |
361 | * list of device IDs extracted via 'strings Setup/data1.hdr |grep 15c2' | |
362 | * Need user input to fill in details on unknown devices. | |
363 | */ | |
364 | /* SoundGraph iMON OEM Touch LCD (IR & 7" VGA LCD) */ | |
0d8053f2 | 365 | { USB_DEVICE(0x15c2, 0x0034), |
7b5fc071 | 366 | .driver_info = (unsigned long)&imon_DH102 }, |
21677cfc | 367 | /* SoundGraph iMON OEM Touch LCD (IR & 4.3" VGA LCD) */ |
0d8053f2 UE |
368 | { USB_DEVICE(0x15c2, 0x0035), |
369 | .driver_info = (unsigned long)&imon_default_table}, | |
21677cfc | 370 | /* SoundGraph iMON OEM VFD (IR & VFD) */ |
0d8053f2 UE |
371 | { USB_DEVICE(0x15c2, 0x0036), |
372 | .driver_info = (unsigned long)&imon_OEM_VFD }, | |
21677cfc | 373 | /* device specifics unknown */ |
0d8053f2 UE |
374 | { USB_DEVICE(0x15c2, 0x0037), |
375 | .driver_info = (unsigned long)&imon_default_table}, | |
21677cfc | 376 | /* SoundGraph iMON OEM LCD (IR & LCD) */ |
0d8053f2 UE |
377 | { USB_DEVICE(0x15c2, 0x0038), |
378 | .driver_info = (unsigned long)&imon_default_table}, | |
21677cfc | 379 | /* SoundGraph iMON UltraBay (IR & LCD) */ |
0d8053f2 UE |
380 | { USB_DEVICE(0x15c2, 0x0039), |
381 | .driver_info = (unsigned long)&imon_default_table}, | |
21677cfc | 382 | /* device specifics unknown */ |
0d8053f2 UE |
383 | { USB_DEVICE(0x15c2, 0x003a), |
384 | .driver_info = (unsigned long)&imon_default_table}, | |
21677cfc | 385 | /* device specifics unknown */ |
0d8053f2 UE |
386 | { USB_DEVICE(0x15c2, 0x003b), |
387 | .driver_info = (unsigned long)&imon_default_table}, | |
21677cfc | 388 | /* SoundGraph iMON OEM Inside (IR only) */ |
0d8053f2 UE |
389 | { USB_DEVICE(0x15c2, 0x003c), |
390 | .driver_info = (unsigned long)&imon_default_table}, | |
21677cfc | 391 | /* device specifics unknown */ |
0d8053f2 UE |
392 | { USB_DEVICE(0x15c2, 0x003d), |
393 | .driver_info = (unsigned long)&imon_default_table}, | |
21677cfc | 394 | /* device specifics unknown */ |
0d8053f2 UE |
395 | { USB_DEVICE(0x15c2, 0x003e), |
396 | .driver_info = (unsigned long)&imon_default_table}, | |
21677cfc | 397 | /* device specifics unknown */ |
0d8053f2 UE |
398 | { USB_DEVICE(0x15c2, 0x003f), |
399 | .driver_info = (unsigned long)&imon_default_table}, | |
21677cfc | 400 | /* device specifics unknown */ |
0d8053f2 UE |
401 | { USB_DEVICE(0x15c2, 0x0040), |
402 | .driver_info = (unsigned long)&imon_default_table}, | |
21677cfc | 403 | /* SoundGraph iMON MINI (IR only) */ |
0d8053f2 UE |
404 | { USB_DEVICE(0x15c2, 0x0041), |
405 | .driver_info = (unsigned long)&imon_default_table}, | |
21677cfc | 406 | /* Antec Veris Multimedia Station EZ External (IR only) */ |
0d8053f2 UE |
407 | { USB_DEVICE(0x15c2, 0x0042), |
408 | .driver_info = (unsigned long)&imon_default_table}, | |
21677cfc | 409 | /* Antec Veris Multimedia Station Basic Internal (IR only) */ |
0d8053f2 UE |
410 | { USB_DEVICE(0x15c2, 0x0043), |
411 | .driver_info = (unsigned long)&imon_default_table}, | |
21677cfc | 412 | /* Antec Veris Multimedia Station Elite (IR & VFD) */ |
0d8053f2 UE |
413 | { USB_DEVICE(0x15c2, 0x0044), |
414 | .driver_info = (unsigned long)&imon_default_table}, | |
21677cfc | 415 | /* Antec Veris Multimedia Station Premiere (IR & LCD) */ |
0d8053f2 UE |
416 | { USB_DEVICE(0x15c2, 0x0045), |
417 | .driver_info = (unsigned long)&imon_default_table}, | |
21677cfc | 418 | /* device specifics unknown */ |
0d8053f2 UE |
419 | { USB_DEVICE(0x15c2, 0x0046), |
420 | .driver_info = (unsigned long)&imon_default_table}, | |
f41003a2 SY |
421 | /* TriGem iMON (IR only) -- TG_iMON.inf */ |
422 | { USB_DEVICE(0x0aa8, 0x8001), | |
423 | .driver_info = (unsigned long)&imon_ir_raw}, | |
424 | /* SoundGraph iMON (IR only) -- sg_imon.inf */ | |
425 | { USB_DEVICE(0x04e8, 0xff30), | |
426 | .driver_info = (unsigned long)&imon_ir_raw}, | |
427 | /* SoundGraph iMON VFD (IR & VFD) -- iMON_VFD.inf */ | |
428 | { USB_DEVICE(0x0aa8, 0xffda), | |
429 | .driver_info = (unsigned long)&imon_ir_raw}, | |
430 | /* SoundGraph iMON SS (IR & VFD) -- iMON_SS.inf */ | |
431 | { USB_DEVICE(0x15c2, 0xffda), | |
432 | .driver_info = (unsigned long)&imon_ir_raw}, | |
21677cfc JW |
433 | {} |
434 | }; | |
435 | ||
436 | /* USB Device data */ | |
437 | static struct usb_driver imon_driver = { | |
438 | .name = MOD_NAME, | |
439 | .probe = imon_probe, | |
4c62e976 | 440 | .disconnect = imon_disconnect, |
21677cfc JW |
441 | .suspend = imon_suspend, |
442 | .resume = imon_resume, | |
443 | .id_table = imon_usb_id_table, | |
444 | }; | |
445 | ||
21677cfc JW |
446 | /* to prevent races between open() and disconnect(), probing, etc */ |
447 | static DEFINE_MUTEX(driver_lock); | |
448 | ||
449 | /* Module bookkeeping bits */ | |
450 | MODULE_AUTHOR(MOD_AUTHOR); | |
451 | MODULE_DESCRIPTION(MOD_DESC); | |
452 | MODULE_VERSION(MOD_VERSION); | |
453 | MODULE_LICENSE("GPL"); | |
454 | MODULE_DEVICE_TABLE(usb, imon_usb_id_table); | |
455 | ||
456 | static bool debug; | |
457 | module_param(debug, bool, S_IRUGO | S_IWUSR); | |
6aa209e4 | 458 | MODULE_PARM_DESC(debug, "Debug messages: 0=no, 1=yes (default: no)"); |
21677cfc JW |
459 | |
460 | /* lcd, vfd, vga or none? should be auto-detected, but can be overridden... */ | |
461 | static int display_type; | |
462 | module_param(display_type, int, S_IRUGO); | |
25ec587c | 463 | MODULE_PARM_DESC(display_type, "Type of attached display. 0=autodetect, 1=vfd, 2=lcd, 3=vga, 4=none (default: autodetect)"); |
21677cfc | 464 | |
6718e8ad JW |
465 | static int pad_stabilize = 1; |
466 | module_param(pad_stabilize, int, S_IRUGO | S_IWUSR); | |
25ec587c | 467 | MODULE_PARM_DESC(pad_stabilize, "Apply stabilization algorithm to iMON PAD presses in arrow key mode. 0=disable, 1=enable (default)."); |
21677cfc JW |
468 | |
469 | /* | |
470 | * In certain use cases, mouse mode isn't really helpful, and could actually | |
471 | * cause confusion, so allow disabling it when the IR device is open. | |
472 | */ | |
473 | static bool nomouse; | |
474 | module_param(nomouse, bool, S_IRUGO | S_IWUSR); | |
25ec587c | 475 | MODULE_PARM_DESC(nomouse, "Disable mouse input device mode when IR device is open. 0=don't disable, 1=disable. (default: don't disable)"); |
21677cfc JW |
476 | |
477 | /* threshold at which a pad push registers as an arrow key in kbd mode */ | |
478 | static int pad_thresh; | |
479 | module_param(pad_thresh, int, S_IRUGO | S_IWUSR); | |
25ec587c | 480 | MODULE_PARM_DESC(pad_thresh, "Threshold at which a pad push registers as an arrow key in kbd mode (default: 28)"); |
21677cfc JW |
481 | |
482 | ||
483 | static void free_imon_context(struct imon_context *ictx) | |
484 | { | |
485 | struct device *dev = ictx->dev; | |
486 | ||
487 | usb_free_urb(ictx->tx_urb); | |
488 | usb_free_urb(ictx->rx_urb_intf0); | |
489 | usb_free_urb(ictx->rx_urb_intf1); | |
490 | kfree(ictx); | |
491 | ||
492 | dev_dbg(dev, "%s: iMON context freed\n", __func__); | |
493 | } | |
494 | ||
255940e6 | 495 | /* |
21677cfc JW |
496 | * Called when the Display device (e.g. /dev/lcd0) |
497 | * is opened by the application. | |
498 | */ | |
499 | static int display_open(struct inode *inode, struct file *file) | |
500 | { | |
501 | struct usb_interface *interface; | |
502 | struct imon_context *ictx = NULL; | |
503 | int subminor; | |
504 | int retval = 0; | |
505 | ||
506 | /* prevent races with disconnect */ | |
507 | mutex_lock(&driver_lock); | |
508 | ||
509 | subminor = iminor(inode); | |
510 | interface = usb_find_interface(&imon_driver, subminor); | |
511 | if (!interface) { | |
e2302501 | 512 | pr_err("could not find interface for minor %d\n", subminor); |
21677cfc JW |
513 | retval = -ENODEV; |
514 | goto exit; | |
515 | } | |
516 | ictx = usb_get_intfdata(interface); | |
517 | ||
518 | if (!ictx) { | |
e2302501 | 519 | pr_err("no context found for minor %d\n", subminor); |
21677cfc JW |
520 | retval = -ENODEV; |
521 | goto exit; | |
522 | } | |
523 | ||
524 | mutex_lock(&ictx->lock); | |
525 | ||
526 | if (!ictx->display_supported) { | |
e2302501 | 527 | pr_err("display not supported by device\n"); |
21677cfc JW |
528 | retval = -ENODEV; |
529 | } else if (ictx->display_isopen) { | |
e2302501 | 530 | pr_err("display port is already open\n"); |
21677cfc JW |
531 | retval = -EBUSY; |
532 | } else { | |
f789bf40 | 533 | ictx->display_isopen = true; |
21677cfc JW |
534 | file->private_data = ictx; |
535 | dev_dbg(ictx->dev, "display port opened\n"); | |
536 | } | |
537 | ||
538 | mutex_unlock(&ictx->lock); | |
539 | ||
540 | exit: | |
541 | mutex_unlock(&driver_lock); | |
542 | return retval; | |
543 | } | |
544 | ||
255940e6 | 545 | /* |
21677cfc JW |
546 | * Called when the display device (e.g. /dev/lcd0) |
547 | * is closed by the application. | |
548 | */ | |
549 | static int display_close(struct inode *inode, struct file *file) | |
550 | { | |
551 | struct imon_context *ictx = NULL; | |
552 | int retval = 0; | |
553 | ||
abf84383 | 554 | ictx = file->private_data; |
21677cfc JW |
555 | |
556 | if (!ictx) { | |
e2302501 | 557 | pr_err("no context for device\n"); |
21677cfc JW |
558 | return -ENODEV; |
559 | } | |
560 | ||
561 | mutex_lock(&ictx->lock); | |
562 | ||
563 | if (!ictx->display_supported) { | |
e2302501 | 564 | pr_err("display not supported by device\n"); |
21677cfc JW |
565 | retval = -ENODEV; |
566 | } else if (!ictx->display_isopen) { | |
e2302501 | 567 | pr_err("display is not open\n"); |
21677cfc JW |
568 | retval = -EIO; |
569 | } else { | |
f789bf40 | 570 | ictx->display_isopen = false; |
21677cfc | 571 | dev_dbg(ictx->dev, "display port closed\n"); |
21677cfc JW |
572 | } |
573 | ||
574 | mutex_unlock(&ictx->lock); | |
575 | return retval; | |
576 | } | |
577 | ||
255940e6 | 578 | /* |
23ef710e JW |
579 | * Sends a packet to the device -- this function must be called with |
580 | * ictx->lock held, or its unlock/lock sequence while waiting for tx | |
581 | * to complete can/will lead to a deadlock. | |
21677cfc JW |
582 | */ |
583 | static int send_packet(struct imon_context *ictx) | |
584 | { | |
585 | unsigned int pipe; | |
586 | unsigned long timeout; | |
587 | int interval = 0; | |
588 | int retval = 0; | |
589 | struct usb_ctrlrequest *control_req = NULL; | |
590 | ||
591 | /* Check if we need to use control or interrupt urb */ | |
592 | if (!ictx->tx_control) { | |
593 | pipe = usb_sndintpipe(ictx->usbdev_intf0, | |
594 | ictx->tx_endpoint->bEndpointAddress); | |
595 | interval = ictx->tx_endpoint->bInterval; | |
596 | ||
597 | usb_fill_int_urb(ictx->tx_urb, ictx->usbdev_intf0, pipe, | |
598 | ictx->usb_tx_buf, | |
599 | sizeof(ictx->usb_tx_buf), | |
600 | usb_tx_callback, ictx, interval); | |
601 | ||
602 | ictx->tx_urb->actual_length = 0; | |
603 | } else { | |
604 | /* fill request into kmalloc'ed space: */ | |
a8c779eb | 605 | control_req = kmalloc(sizeof(*control_req), GFP_KERNEL); |
21677cfc JW |
606 | if (control_req == NULL) |
607 | return -ENOMEM; | |
608 | ||
609 | /* setup packet is '21 09 0200 0001 0008' */ | |
610 | control_req->bRequestType = 0x21; | |
611 | control_req->bRequest = 0x09; | |
612 | control_req->wValue = cpu_to_le16(0x0200); | |
613 | control_req->wIndex = cpu_to_le16(0x0001); | |
614 | control_req->wLength = cpu_to_le16(0x0008); | |
615 | ||
616 | /* control pipe is endpoint 0x00 */ | |
617 | pipe = usb_sndctrlpipe(ictx->usbdev_intf0, 0); | |
618 | ||
619 | /* build the control urb */ | |
620 | usb_fill_control_urb(ictx->tx_urb, ictx->usbdev_intf0, | |
621 | pipe, (unsigned char *)control_req, | |
622 | ictx->usb_tx_buf, | |
623 | sizeof(ictx->usb_tx_buf), | |
624 | usb_tx_callback, ictx); | |
625 | ictx->tx_urb->actual_length = 0; | |
626 | } | |
627 | ||
7c073fff | 628 | reinit_completion(&ictx->tx.finished); |
f789bf40 | 629 | ictx->tx.busy = true; |
21677cfc JW |
630 | smp_rmb(); /* ensure later readers know we're busy */ |
631 | ||
632 | retval = usb_submit_urb(ictx->tx_urb, GFP_KERNEL); | |
633 | if (retval) { | |
f789bf40 | 634 | ictx->tx.busy = false; |
21677cfc | 635 | smp_rmb(); /* ensure later readers know we're not busy */ |
47a09b08 | 636 | pr_err_ratelimited("error submitting urb(%d)\n", retval); |
21677cfc JW |
637 | } else { |
638 | /* Wait for transmission to complete (or abort) */ | |
639 | mutex_unlock(&ictx->lock); | |
640 | retval = wait_for_completion_interruptible( | |
641 | &ictx->tx.finished); | |
5f3f254f KB |
642 | if (retval) { |
643 | usb_kill_urb(ictx->tx_urb); | |
47a09b08 | 644 | pr_err_ratelimited("task interrupted\n"); |
5f3f254f | 645 | } |
21677cfc JW |
646 | mutex_lock(&ictx->lock); |
647 | ||
648 | retval = ictx->tx.status; | |
649 | if (retval) | |
47a09b08 | 650 | pr_err_ratelimited("packet tx failed (%d)\n", retval); |
21677cfc JW |
651 | } |
652 | ||
653 | kfree(control_req); | |
654 | ||
655 | /* | |
26ccbec4 | 656 | * Induce a mandatory delay before returning, as otherwise, |
21677cfc JW |
657 | * send_packet can get called so rapidly as to overwhelm the device, |
658 | * particularly on faster systems and/or those with quirky usb. | |
659 | */ | |
26ccbec4 KB |
660 | timeout = msecs_to_jiffies(ictx->send_packet_delay); |
661 | set_current_state(TASK_INTERRUPTIBLE); | |
21677cfc JW |
662 | schedule_timeout(timeout); |
663 | ||
664 | return retval; | |
665 | } | |
666 | ||
255940e6 | 667 | /* |
21677cfc JW |
668 | * Sends an associate packet to the iMON 2.4G. |
669 | * | |
670 | * This might not be such a good idea, since it has an id collision with | |
671 | * some versions of the "IR & VFD" combo. The only way to determine if it | |
672 | * is an RF version is to look at the product description string. (Which | |
673 | * we currently do not fetch). | |
674 | */ | |
675 | static int send_associate_24g(struct imon_context *ictx) | |
676 | { | |
677 | int retval; | |
678 | const unsigned char packet[8] = { 0x01, 0x00, 0x00, 0x00, | |
679 | 0x00, 0x00, 0x00, 0x20 }; | |
680 | ||
681 | if (!ictx) { | |
e2302501 | 682 | pr_err("no context for device\n"); |
21677cfc JW |
683 | return -ENODEV; |
684 | } | |
685 | ||
686 | if (!ictx->dev_present_intf0) { | |
e2302501 | 687 | pr_err("no iMON device present\n"); |
21677cfc JW |
688 | return -ENODEV; |
689 | } | |
690 | ||
691 | memcpy(ictx->usb_tx_buf, packet, sizeof(packet)); | |
692 | retval = send_packet(ictx); | |
693 | ||
694 | return retval; | |
695 | } | |
696 | ||
255940e6 | 697 | /* |
21677cfc JW |
698 | * Sends packets to setup and show clock on iMON display |
699 | * | |
700 | * Arguments: year - last 2 digits of year, month - 1..12, | |
701 | * day - 1..31, dow - day of the week (0-Sun...6-Sat), | |
702 | * hour - 0..23, minute - 0..59, second - 0..59 | |
703 | */ | |
704 | static int send_set_imon_clock(struct imon_context *ictx, | |
705 | unsigned int year, unsigned int month, | |
706 | unsigned int day, unsigned int dow, | |
707 | unsigned int hour, unsigned int minute, | |
708 | unsigned int second) | |
709 | { | |
710 | unsigned char clock_enable_pkt[IMON_CLOCK_ENABLE_PACKETS][8]; | |
711 | int retval = 0; | |
712 | int i; | |
713 | ||
714 | if (!ictx) { | |
e2302501 | 715 | pr_err("no context for device\n"); |
21677cfc JW |
716 | return -ENODEV; |
717 | } | |
718 | ||
719 | switch (ictx->display_type) { | |
720 | case IMON_DISPLAY_TYPE_LCD: | |
721 | clock_enable_pkt[0][0] = 0x80; | |
722 | clock_enable_pkt[0][1] = year; | |
723 | clock_enable_pkt[0][2] = month-1; | |
724 | clock_enable_pkt[0][3] = day; | |
725 | clock_enable_pkt[0][4] = hour; | |
726 | clock_enable_pkt[0][5] = minute; | |
727 | clock_enable_pkt[0][6] = second; | |
728 | ||
729 | clock_enable_pkt[1][0] = 0x80; | |
730 | clock_enable_pkt[1][1] = 0; | |
731 | clock_enable_pkt[1][2] = 0; | |
732 | clock_enable_pkt[1][3] = 0; | |
733 | clock_enable_pkt[1][4] = 0; | |
734 | clock_enable_pkt[1][5] = 0; | |
735 | clock_enable_pkt[1][6] = 0; | |
736 | ||
737 | if (ictx->product == 0xffdc) { | |
738 | clock_enable_pkt[0][7] = 0x50; | |
739 | clock_enable_pkt[1][7] = 0x51; | |
740 | } else { | |
741 | clock_enable_pkt[0][7] = 0x88; | |
742 | clock_enable_pkt[1][7] = 0x8a; | |
743 | } | |
744 | ||
745 | break; | |
746 | ||
747 | case IMON_DISPLAY_TYPE_VFD: | |
748 | clock_enable_pkt[0][0] = year; | |
749 | clock_enable_pkt[0][1] = month-1; | |
750 | clock_enable_pkt[0][2] = day; | |
751 | clock_enable_pkt[0][3] = dow; | |
752 | clock_enable_pkt[0][4] = hour; | |
753 | clock_enable_pkt[0][5] = minute; | |
754 | clock_enable_pkt[0][6] = second; | |
755 | clock_enable_pkt[0][7] = 0x40; | |
756 | ||
757 | clock_enable_pkt[1][0] = 0; | |
758 | clock_enable_pkt[1][1] = 0; | |
759 | clock_enable_pkt[1][2] = 1; | |
760 | clock_enable_pkt[1][3] = 0; | |
761 | clock_enable_pkt[1][4] = 0; | |
762 | clock_enable_pkt[1][5] = 0; | |
763 | clock_enable_pkt[1][6] = 0; | |
764 | clock_enable_pkt[1][7] = 0x42; | |
765 | ||
766 | break; | |
767 | ||
768 | default: | |
769 | return -ENODEV; | |
770 | } | |
771 | ||
772 | for (i = 0; i < IMON_CLOCK_ENABLE_PACKETS; i++) { | |
773 | memcpy(ictx->usb_tx_buf, clock_enable_pkt[i], 8); | |
774 | retval = send_packet(ictx); | |
775 | if (retval) { | |
e2302501 | 776 | pr_err("send_packet failed for packet %d\n", i); |
21677cfc JW |
777 | break; |
778 | } | |
779 | } | |
780 | ||
781 | return retval; | |
782 | } | |
783 | ||
255940e6 | 784 | /* |
21677cfc JW |
785 | * These are the sysfs functions to handle the association on the iMON 2.4G LT. |
786 | */ | |
787 | static ssize_t show_associate_remote(struct device *d, | |
788 | struct device_attribute *attr, | |
789 | char *buf) | |
790 | { | |
791 | struct imon_context *ictx = dev_get_drvdata(d); | |
792 | ||
793 | if (!ictx) | |
794 | return -ENODEV; | |
795 | ||
796 | mutex_lock(&ictx->lock); | |
797 | if (ictx->rf_isassociating) | |
798 | strcpy(buf, "associating\n"); | |
799 | else | |
800 | strcpy(buf, "closed\n"); | |
801 | ||
25ec587c | 802 | dev_info(d, "Visit http://www.lirc.org/html/imon-24g.html for instructions on how to associate your iMON 2.4G DT/LT remote\n"); |
21677cfc JW |
803 | mutex_unlock(&ictx->lock); |
804 | return strlen(buf); | |
805 | } | |
806 | ||
807 | static ssize_t store_associate_remote(struct device *d, | |
808 | struct device_attribute *attr, | |
809 | const char *buf, size_t count) | |
810 | { | |
811 | struct imon_context *ictx; | |
812 | ||
813 | ictx = dev_get_drvdata(d); | |
814 | ||
815 | if (!ictx) | |
816 | return -ENODEV; | |
817 | ||
818 | mutex_lock(&ictx->lock); | |
f789bf40 | 819 | ictx->rf_isassociating = true; |
21677cfc JW |
820 | send_associate_24g(ictx); |
821 | mutex_unlock(&ictx->lock); | |
822 | ||
823 | return count; | |
824 | } | |
825 | ||
255940e6 | 826 | /* |
21677cfc JW |
827 | * sysfs functions to control internal imon clock |
828 | */ | |
829 | static ssize_t show_imon_clock(struct device *d, | |
830 | struct device_attribute *attr, char *buf) | |
831 | { | |
832 | struct imon_context *ictx = dev_get_drvdata(d); | |
833 | size_t len; | |
834 | ||
835 | if (!ictx) | |
836 | return -ENODEV; | |
837 | ||
838 | mutex_lock(&ictx->lock); | |
839 | ||
840 | if (!ictx->display_supported) { | |
841 | len = snprintf(buf, PAGE_SIZE, "Not supported."); | |
842 | } else { | |
843 | len = snprintf(buf, PAGE_SIZE, | |
844 | "To set the clock on your iMON display:\n" | |
845 | "# date \"+%%y %%m %%d %%w %%H %%M %%S\" > imon_clock\n" | |
846 | "%s", ictx->display_isopen ? | |
847 | "\nNOTE: imon device must be closed\n" : ""); | |
848 | } | |
849 | ||
850 | mutex_unlock(&ictx->lock); | |
851 | ||
852 | return len; | |
853 | } | |
854 | ||
855 | static ssize_t store_imon_clock(struct device *d, | |
856 | struct device_attribute *attr, | |
857 | const char *buf, size_t count) | |
858 | { | |
859 | struct imon_context *ictx = dev_get_drvdata(d); | |
860 | ssize_t retval; | |
861 | unsigned int year, month, day, dow, hour, minute, second; | |
862 | ||
863 | if (!ictx) | |
864 | return -ENODEV; | |
865 | ||
866 | mutex_lock(&ictx->lock); | |
867 | ||
868 | if (!ictx->display_supported) { | |
869 | retval = -ENODEV; | |
870 | goto exit; | |
871 | } else if (ictx->display_isopen) { | |
872 | retval = -EBUSY; | |
873 | goto exit; | |
874 | } | |
875 | ||
876 | if (sscanf(buf, "%u %u %u %u %u %u %u", &year, &month, &day, &dow, | |
877 | &hour, &minute, &second) != 7) { | |
878 | retval = -EINVAL; | |
879 | goto exit; | |
880 | } | |
881 | ||
882 | if ((month < 1 || month > 12) || | |
883 | (day < 1 || day > 31) || (dow > 6) || | |
884 | (hour > 23) || (minute > 59) || (second > 59)) { | |
885 | retval = -EINVAL; | |
886 | goto exit; | |
887 | } | |
888 | ||
889 | retval = send_set_imon_clock(ictx, year, month, day, dow, | |
890 | hour, minute, second); | |
891 | if (retval) | |
892 | goto exit; | |
893 | ||
894 | retval = count; | |
895 | exit: | |
896 | mutex_unlock(&ictx->lock); | |
897 | ||
898 | return retval; | |
899 | } | |
900 | ||
901 | ||
902 | static DEVICE_ATTR(imon_clock, S_IWUSR | S_IRUGO, show_imon_clock, | |
903 | store_imon_clock); | |
904 | ||
905 | static DEVICE_ATTR(associate_remote, S_IWUSR | S_IRUGO, show_associate_remote, | |
906 | store_associate_remote); | |
907 | ||
908 | static struct attribute *imon_display_sysfs_entries[] = { | |
909 | &dev_attr_imon_clock.attr, | |
910 | NULL | |
911 | }; | |
912 | ||
d9a77b98 | 913 | static const struct attribute_group imon_display_attr_group = { |
21677cfc JW |
914 | .attrs = imon_display_sysfs_entries |
915 | }; | |
916 | ||
917 | static struct attribute *imon_rf_sysfs_entries[] = { | |
918 | &dev_attr_associate_remote.attr, | |
919 | NULL | |
920 | }; | |
921 | ||
d9a77b98 | 922 | static const struct attribute_group imon_rf_attr_group = { |
21677cfc JW |
923 | .attrs = imon_rf_sysfs_entries |
924 | }; | |
925 | ||
255940e6 | 926 | /* |
21677cfc JW |
927 | * Writes data to the VFD. The iMON VFD is 2x16 characters |
928 | * and requires data in 5 consecutive USB interrupt packets, | |
929 | * each packet but the last carrying 7 bytes. | |
930 | * | |
931 | * I don't know if the VFD board supports features such as | |
932 | * scrolling, clearing rows, blanking, etc. so at | |
933 | * the caller must provide a full screen of data. If fewer | |
934 | * than 32 bytes are provided spaces will be appended to | |
935 | * generate a full screen. | |
936 | */ | |
d6740d86 | 937 | static ssize_t vfd_write(struct file *file, const char __user *buf, |
21677cfc JW |
938 | size_t n_bytes, loff_t *pos) |
939 | { | |
940 | int i; | |
941 | int offset; | |
942 | int seq; | |
943 | int retval = 0; | |
944 | struct imon_context *ictx; | |
c25895c7 | 945 | static const unsigned char vfd_packet6[] = { |
21677cfc JW |
946 | 0x01, 0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF }; |
947 | ||
abf84383 | 948 | ictx = file->private_data; |
21677cfc | 949 | if (!ictx) { |
47a09b08 | 950 | pr_err_ratelimited("no context for device\n"); |
21677cfc JW |
951 | return -ENODEV; |
952 | } | |
953 | ||
954 | mutex_lock(&ictx->lock); | |
955 | ||
956 | if (!ictx->dev_present_intf0) { | |
47a09b08 | 957 | pr_err_ratelimited("no iMON device present\n"); |
21677cfc JW |
958 | retval = -ENODEV; |
959 | goto exit; | |
960 | } | |
961 | ||
962 | if (n_bytes <= 0 || n_bytes > 32) { | |
47a09b08 | 963 | pr_err_ratelimited("invalid payload size\n"); |
21677cfc JW |
964 | retval = -EINVAL; |
965 | goto exit; | |
966 | } | |
967 | ||
968 | if (copy_from_user(ictx->tx.data_buf, buf, n_bytes)) { | |
969 | retval = -EFAULT; | |
970 | goto exit; | |
971 | } | |
972 | ||
973 | /* Pad with spaces */ | |
974 | for (i = n_bytes; i < 32; ++i) | |
975 | ictx->tx.data_buf[i] = ' '; | |
976 | ||
977 | for (i = 32; i < 35; ++i) | |
978 | ictx->tx.data_buf[i] = 0xFF; | |
979 | ||
980 | offset = 0; | |
981 | seq = 0; | |
982 | ||
983 | do { | |
984 | memcpy(ictx->usb_tx_buf, ictx->tx.data_buf + offset, 7); | |
985 | ictx->usb_tx_buf[7] = (unsigned char) seq; | |
986 | ||
987 | retval = send_packet(ictx); | |
988 | if (retval) { | |
47a09b08 | 989 | pr_err_ratelimited("send packet #%d failed\n", seq / 2); |
21677cfc JW |
990 | goto exit; |
991 | } else { | |
992 | seq += 2; | |
993 | offset += 7; | |
994 | } | |
995 | ||
996 | } while (offset < 35); | |
997 | ||
998 | /* Send packet #6 */ | |
999 | memcpy(ictx->usb_tx_buf, &vfd_packet6, sizeof(vfd_packet6)); | |
1000 | ictx->usb_tx_buf[7] = (unsigned char) seq; | |
1001 | retval = send_packet(ictx); | |
1002 | if (retval) | |
47a09b08 | 1003 | pr_err_ratelimited("send packet #%d failed\n", seq / 2); |
21677cfc JW |
1004 | |
1005 | exit: | |
1006 | mutex_unlock(&ictx->lock); | |
1007 | ||
1008 | return (!retval) ? n_bytes : retval; | |
1009 | } | |
1010 | ||
255940e6 | 1011 | /* |
21677cfc JW |
1012 | * Writes data to the LCD. The iMON OEM LCD screen expects 8-byte |
1013 | * packets. We accept data as 16 hexadecimal digits, followed by a | |
1014 | * newline (to make it easy to drive the device from a command-line | |
1015 | * -- even though the actual binary data is a bit complicated). | |
1016 | * | |
1017 | * The device itself is not a "traditional" text-mode display. It's | |
1018 | * actually a 16x96 pixel bitmap display. That means if you want to | |
1019 | * display text, you've got to have your own "font" and translate the | |
1020 | * text into bitmaps for display. This is really flexible (you can | |
1021 | * display whatever diacritics you need, and so on), but it's also | |
1022 | * a lot more complicated than most LCDs... | |
1023 | */ | |
d6740d86 | 1024 | static ssize_t lcd_write(struct file *file, const char __user *buf, |
21677cfc JW |
1025 | size_t n_bytes, loff_t *pos) |
1026 | { | |
1027 | int retval = 0; | |
1028 | struct imon_context *ictx; | |
1029 | ||
abf84383 | 1030 | ictx = file->private_data; |
21677cfc | 1031 | if (!ictx) { |
47a09b08 | 1032 | pr_err_ratelimited("no context for device\n"); |
21677cfc JW |
1033 | return -ENODEV; |
1034 | } | |
1035 | ||
1036 | mutex_lock(&ictx->lock); | |
1037 | ||
1038 | if (!ictx->display_supported) { | |
47a09b08 | 1039 | pr_err_ratelimited("no iMON display present\n"); |
21677cfc JW |
1040 | retval = -ENODEV; |
1041 | goto exit; | |
1042 | } | |
1043 | ||
1044 | if (n_bytes != 8) { | |
47a09b08 JW |
1045 | pr_err_ratelimited("invalid payload size: %d (expected 8)\n", |
1046 | (int)n_bytes); | |
21677cfc JW |
1047 | retval = -EINVAL; |
1048 | goto exit; | |
1049 | } | |
1050 | ||
1051 | if (copy_from_user(ictx->usb_tx_buf, buf, 8)) { | |
1052 | retval = -EFAULT; | |
1053 | goto exit; | |
1054 | } | |
1055 | ||
1056 | retval = send_packet(ictx); | |
1057 | if (retval) { | |
47a09b08 | 1058 | pr_err_ratelimited("send packet failed!\n"); |
21677cfc JW |
1059 | goto exit; |
1060 | } else { | |
1061 | dev_dbg(ictx->dev, "%s: write %d bytes to LCD\n", | |
1062 | __func__, (int) n_bytes); | |
1063 | } | |
1064 | exit: | |
1065 | mutex_unlock(&ictx->lock); | |
1066 | return (!retval) ? n_bytes : retval; | |
1067 | } | |
1068 | ||
255940e6 | 1069 | /* |
21677cfc JW |
1070 | * Callback function for USB core API: transmit data |
1071 | */ | |
1072 | static void usb_tx_callback(struct urb *urb) | |
1073 | { | |
1074 | struct imon_context *ictx; | |
1075 | ||
1076 | if (!urb) | |
1077 | return; | |
1078 | ictx = (struct imon_context *)urb->context; | |
1079 | if (!ictx) | |
1080 | return; | |
1081 | ||
1082 | ictx->tx.status = urb->status; | |
1083 | ||
1084 | /* notify waiters that write has finished */ | |
f789bf40 | 1085 | ictx->tx.busy = false; |
21677cfc JW |
1086 | smp_rmb(); /* ensure later readers know we're not busy */ |
1087 | complete(&ictx->tx.finished); | |
1088 | } | |
1089 | ||
255940e6 | 1090 | /* |
21677cfc JW |
1091 | * report touchscreen input |
1092 | */ | |
b17ec78a | 1093 | static void imon_touch_display_timeout(struct timer_list *t) |
21677cfc | 1094 | { |
b17ec78a | 1095 | struct imon_context *ictx = from_timer(ictx, t, ttimer); |
21677cfc | 1096 | |
f03900d6 | 1097 | if (ictx->display_type != IMON_DISPLAY_TYPE_VGA) |
21677cfc JW |
1098 | return; |
1099 | ||
1100 | input_report_abs(ictx->touch, ABS_X, ictx->touch_x); | |
1101 | input_report_abs(ictx->touch, ABS_Y, ictx->touch_y); | |
1102 | input_report_key(ictx->touch, BTN_TOUCH, 0x00); | |
1103 | input_sync(ictx->touch); | |
1104 | } | |
1105 | ||
255940e6 | 1106 | /* |
21677cfc JW |
1107 | * iMON IR receivers support two different signal sets -- those used by |
1108 | * the iMON remotes, and those used by the Windows MCE remotes (which is | |
1109 | * really just RC-6), but only one or the other at a time, as the signals | |
1110 | * are decoded onboard the receiver. | |
23ef710e JW |
1111 | * |
1112 | * This function gets called two different ways, one way is from | |
1113 | * rc_register_device, for initial protocol selection/setup, and the other is | |
1114 | * via a userspace-initiated protocol change request, either by direct sysfs | |
1115 | * prodding or by something like ir-keytable. In the rc_register_device case, | |
1116 | * the imon context lock is already held, but when initiated from userspace, | |
1117 | * it is not, so we must acquire it prior to calling send_packet, which | |
1118 | * requires that the lock is held. | |
21677cfc | 1119 | */ |
6d741bfe | 1120 | static int imon_ir_change_protocol(struct rc_dev *rc, u64 *rc_proto) |
21677cfc JW |
1121 | { |
1122 | int retval; | |
d8b4b582 | 1123 | struct imon_context *ictx = rc->priv; |
21677cfc | 1124 | struct device *dev = ictx->dev; |
23ef710e | 1125 | bool unlock = false; |
21677cfc JW |
1126 | unsigned char ir_proto_packet[] = { |
1127 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x86 }; | |
1128 | ||
6d741bfe | 1129 | if (*rc_proto && !(*rc_proto & rc->allowed_protocols)) |
25ec587c | 1130 | dev_warn(dev, "Looks like you're trying to use an IR protocol this device does not support\n"); |
21677cfc | 1131 | |
6d741bfe | 1132 | if (*rc_proto & RC_PROTO_BIT_RC6_MCE) { |
21677cfc JW |
1133 | dev_dbg(dev, "Configuring IR receiver for MCE protocol\n"); |
1134 | ir_proto_packet[0] = 0x01; | |
6d741bfe SY |
1135 | *rc_proto = RC_PROTO_BIT_RC6_MCE; |
1136 | } else if (*rc_proto & RC_PROTO_BIT_OTHER) { | |
666a9ed8 | 1137 | dev_dbg(dev, "Configuring IR receiver for iMON protocol\n"); |
76f1ef42 | 1138 | if (!pad_stabilize) |
666a9ed8 | 1139 | dev_dbg(dev, "PAD stabilize functionality disabled\n"); |
21677cfc | 1140 | /* ir_proto_packet[0] = 0x00; // already the default */ |
6d741bfe | 1141 | *rc_proto = RC_PROTO_BIT_OTHER; |
c003ab1b | 1142 | } else { |
25ec587c | 1143 | dev_warn(dev, "Unsupported IR protocol specified, overriding to iMON IR protocol\n"); |
76f1ef42 | 1144 | if (!pad_stabilize) |
666a9ed8 | 1145 | dev_dbg(dev, "PAD stabilize functionality disabled\n"); |
6718e8ad | 1146 | /* ir_proto_packet[0] = 0x00; // already the default */ |
6d741bfe | 1147 | *rc_proto = RC_PROTO_BIT_OTHER; |
21677cfc JW |
1148 | } |
1149 | ||
1150 | memcpy(ictx->usb_tx_buf, &ir_proto_packet, sizeof(ir_proto_packet)); | |
1151 | ||
23ef710e JW |
1152 | if (!mutex_is_locked(&ictx->lock)) { |
1153 | unlock = true; | |
1154 | mutex_lock(&ictx->lock); | |
1155 | } | |
1156 | ||
21677cfc | 1157 | retval = send_packet(ictx); |
6718e8ad JW |
1158 | if (retval) |
1159 | goto out; | |
1160 | ||
6d741bfe | 1161 | ictx->rc_proto = *rc_proto; |
76f1ef42 | 1162 | ictx->pad_mouse = false; |
6718e8ad JW |
1163 | |
1164 | out: | |
23ef710e JW |
1165 | if (unlock) |
1166 | mutex_unlock(&ictx->lock); | |
1167 | ||
6718e8ad | 1168 | return retval; |
21677cfc JW |
1169 | } |
1170 | ||
1171 | static inline int tv2int(const struct timeval *a, const struct timeval *b) | |
1172 | { | |
1173 | int usecs = 0; | |
1174 | int sec = 0; | |
1175 | ||
1176 | if (b->tv_usec > a->tv_usec) { | |
1177 | usecs = 1000000; | |
1178 | sec--; | |
1179 | } | |
1180 | ||
1181 | usecs += a->tv_usec - b->tv_usec; | |
1182 | ||
1183 | sec += a->tv_sec - b->tv_sec; | |
1184 | sec *= 1000; | |
1185 | usecs /= 1000; | |
1186 | sec += usecs; | |
1187 | ||
1188 | if (sec < 0) | |
1189 | sec = 1000; | |
1190 | ||
1191 | return sec; | |
1192 | } | |
1193 | ||
255940e6 | 1194 | /* |
21677cfc JW |
1195 | * The directional pad behaves a bit differently, depending on whether this is |
1196 | * one of the older ffdc devices or a newer device. Newer devices appear to | |
1197 | * have a higher resolution matrix for more precise mouse movement, but it | |
1198 | * makes things overly sensitive in keyboard mode, so we do some interesting | |
1199 | * contortions to make it less touchy. Older devices run through the same | |
1200 | * routine with shorter timeout and a smaller threshold. | |
1201 | */ | |
1202 | static int stabilize(int a, int b, u16 timeout, u16 threshold) | |
1203 | { | |
1204 | struct timeval ct; | |
1205 | static struct timeval prev_time = {0, 0}; | |
1206 | static struct timeval hit_time = {0, 0}; | |
1207 | static int x, y, prev_result, hits; | |
1208 | int result = 0; | |
1209 | int msec, msec_hit; | |
1210 | ||
1211 | do_gettimeofday(&ct); | |
1212 | msec = tv2int(&ct, &prev_time); | |
1213 | msec_hit = tv2int(&ct, &hit_time); | |
1214 | ||
1215 | if (msec > 100) { | |
1216 | x = 0; | |
1217 | y = 0; | |
1218 | hits = 0; | |
1219 | } | |
1220 | ||
1221 | x += a; | |
1222 | y += b; | |
1223 | ||
1224 | prev_time = ct; | |
1225 | ||
1226 | if (abs(x) > threshold || abs(y) > threshold) { | |
1227 | if (abs(y) > abs(x)) | |
1228 | result = (y > 0) ? 0x7F : 0x80; | |
1229 | else | |
1230 | result = (x > 0) ? 0x7F00 : 0x8000; | |
1231 | ||
1232 | x = 0; | |
1233 | y = 0; | |
1234 | ||
1235 | if (result == prev_result) { | |
1236 | hits++; | |
1237 | ||
1238 | if (hits > 3) { | |
1239 | switch (result) { | |
1240 | case 0x7F: | |
1241 | y = 17 * threshold / 30; | |
1242 | break; | |
1243 | case 0x80: | |
1244 | y -= 17 * threshold / 30; | |
1245 | break; | |
1246 | case 0x7F00: | |
1247 | x = 17 * threshold / 30; | |
1248 | break; | |
1249 | case 0x8000: | |
1250 | x -= 17 * threshold / 30; | |
1251 | break; | |
1252 | } | |
1253 | } | |
1254 | ||
1255 | if (hits == 2 && msec_hit < timeout) { | |
1256 | result = 0; | |
1257 | hits = 1; | |
1258 | } | |
1259 | } else { | |
1260 | prev_result = result; | |
1261 | hits = 1; | |
1262 | hit_time = ct; | |
1263 | } | |
1264 | } | |
1265 | ||
1266 | return result; | |
1267 | } | |
1268 | ||
eaf2bcc9 | 1269 | static u32 imon_remote_key_lookup(struct imon_context *ictx, u32 scancode) |
21677cfc | 1270 | { |
21677cfc JW |
1271 | u32 keycode; |
1272 | u32 release; | |
1273 | bool is_release_code = false; | |
1274 | ||
1275 | /* Look for the initial press of a button */ | |
ca86674b | 1276 | keycode = rc_g_keycode_from_table(ictx->rdev, scancode); |
eaf2bcc9 DH |
1277 | ictx->rc_toggle = 0x0; |
1278 | ictx->rc_scancode = scancode; | |
21677cfc JW |
1279 | |
1280 | /* Look for the release of a button */ | |
1281 | if (keycode == KEY_RESERVED) { | |
1282 | release = scancode & ~0x4000; | |
ca86674b | 1283 | keycode = rc_g_keycode_from_table(ictx->rdev, release); |
21677cfc JW |
1284 | if (keycode != KEY_RESERVED) |
1285 | is_release_code = true; | |
1286 | } | |
1287 | ||
1288 | ictx->release_code = is_release_code; | |
1289 | ||
1290 | return keycode; | |
1291 | } | |
1292 | ||
eaf2bcc9 | 1293 | static u32 imon_mce_key_lookup(struct imon_context *ictx, u32 scancode) |
21677cfc | 1294 | { |
21677cfc JW |
1295 | u32 keycode; |
1296 | ||
1297 | #define MCE_KEY_MASK 0x7000 | |
1298 | #define MCE_TOGGLE_BIT 0x8000 | |
1299 | ||
1300 | /* | |
1301 | * On some receivers, mce keys decode to 0x8000f04xx and 0x8000f84xx | |
1302 | * (the toggle bit flipping between alternating key presses), while | |
1303 | * on other receivers, we see 0x8000f74xx and 0x8000ff4xx. To keep | |
1304 | * the table trim, we always or in the bits to look up 0x8000ff4xx, | |
1305 | * but we can't or them into all codes, as some keys are decoded in | |
1306 | * a different way w/o the same use of the toggle bit... | |
1307 | */ | |
eaf2bcc9 | 1308 | if (scancode & 0x80000000) |
21677cfc JW |
1309 | scancode = scancode | MCE_KEY_MASK | MCE_TOGGLE_BIT; |
1310 | ||
eaf2bcc9 | 1311 | ictx->rc_scancode = scancode; |
ca86674b | 1312 | keycode = rc_g_keycode_from_table(ictx->rdev, scancode); |
eaf2bcc9 DH |
1313 | |
1314 | /* not used in mce mode, but make sure we know its false */ | |
1315 | ictx->release_code = false; | |
21677cfc JW |
1316 | |
1317 | return keycode; | |
1318 | } | |
1319 | ||
0d8053f2 | 1320 | static u32 imon_panel_key_lookup(struct imon_context *ictx, u64 code) |
21677cfc JW |
1321 | { |
1322 | int i; | |
083e4721 | 1323 | u32 keycode = KEY_RESERVED; |
0d8053f2 | 1324 | struct imon_panel_key_table *key_table = ictx->dev_descr->key_table; |
21677cfc | 1325 | |
0d8053f2 UE |
1326 | for (i = 0; key_table[i].hw_code != 0; i++) { |
1327 | if (key_table[i].hw_code == (code | 0xffee)) { | |
1328 | keycode = key_table[i].keycode; | |
21677cfc | 1329 | break; |
083e4721 JW |
1330 | } |
1331 | } | |
0d8053f2 | 1332 | ictx->release_code = false; |
21677cfc JW |
1333 | return keycode; |
1334 | } | |
1335 | ||
1336 | static bool imon_mouse_event(struct imon_context *ictx, | |
1337 | unsigned char *buf, int len) | |
1338 | { | |
24dec5da | 1339 | signed char rel_x = 0x00, rel_y = 0x00; |
21677cfc | 1340 | u8 right_shift = 1; |
f789bf40 | 1341 | bool mouse_input = true; |
21677cfc | 1342 | int dir = 0; |
693508df JW |
1343 | unsigned long flags; |
1344 | ||
1345 | spin_lock_irqsave(&ictx->kc_lock, flags); | |
21677cfc JW |
1346 | |
1347 | /* newer iMON device PAD or mouse button */ | |
1348 | if (ictx->product != 0xffdc && (buf[0] & 0x01) && len == 5) { | |
1349 | rel_x = buf[2]; | |
1350 | rel_y = buf[3]; | |
1351 | right_shift = 1; | |
1352 | /* 0xffdc iMON PAD or mouse button input */ | |
1353 | } else if (ictx->product == 0xffdc && (buf[0] & 0x40) && | |
1354 | !((buf[1] & 0x01) || ((buf[1] >> 2) & 0x01))) { | |
1355 | rel_x = (buf[1] & 0x08) | (buf[1] & 0x10) >> 2 | | |
1356 | (buf[1] & 0x20) >> 4 | (buf[1] & 0x40) >> 6; | |
1357 | if (buf[0] & 0x02) | |
1358 | rel_x |= ~0x0f; | |
1359 | rel_x = rel_x + rel_x / 2; | |
1360 | rel_y = (buf[2] & 0x08) | (buf[2] & 0x10) >> 2 | | |
1361 | (buf[2] & 0x20) >> 4 | (buf[2] & 0x40) >> 6; | |
1362 | if (buf[0] & 0x01) | |
1363 | rel_y |= ~0x0f; | |
1364 | rel_y = rel_y + rel_y / 2; | |
1365 | right_shift = 2; | |
1366 | /* some ffdc devices decode mouse buttons differently... */ | |
1367 | } else if (ictx->product == 0xffdc && (buf[0] == 0x68)) { | |
1368 | right_shift = 2; | |
1369 | /* ch+/- buttons, which we use for an emulated scroll wheel */ | |
1370 | } else if (ictx->kc == KEY_CHANNELUP && (buf[2] & 0x40) != 0x40) { | |
1371 | dir = 1; | |
1372 | } else if (ictx->kc == KEY_CHANNELDOWN && (buf[2] & 0x40) != 0x40) { | |
1373 | dir = -1; | |
1374 | } else | |
f789bf40 | 1375 | mouse_input = false; |
21677cfc | 1376 | |
693508df JW |
1377 | spin_unlock_irqrestore(&ictx->kc_lock, flags); |
1378 | ||
21677cfc JW |
1379 | if (mouse_input) { |
1380 | dev_dbg(ictx->dev, "sending mouse data via input subsystem\n"); | |
1381 | ||
1382 | if (dir) { | |
1383 | input_report_rel(ictx->idev, REL_WHEEL, dir); | |
1384 | } else if (rel_x || rel_y) { | |
1385 | input_report_rel(ictx->idev, REL_X, rel_x); | |
1386 | input_report_rel(ictx->idev, REL_Y, rel_y); | |
1387 | } else { | |
1388 | input_report_key(ictx->idev, BTN_LEFT, buf[1] & 0x1); | |
1389 | input_report_key(ictx->idev, BTN_RIGHT, | |
1390 | buf[1] >> right_shift & 0x1); | |
1391 | } | |
1392 | input_sync(ictx->idev); | |
693508df | 1393 | spin_lock_irqsave(&ictx->kc_lock, flags); |
21677cfc | 1394 | ictx->last_keycode = ictx->kc; |
693508df | 1395 | spin_unlock_irqrestore(&ictx->kc_lock, flags); |
21677cfc JW |
1396 | } |
1397 | ||
1398 | return mouse_input; | |
1399 | } | |
1400 | ||
1401 | static void imon_touch_event(struct imon_context *ictx, unsigned char *buf) | |
1402 | { | |
1403 | mod_timer(&ictx->ttimer, jiffies + TOUCH_TIMEOUT); | |
1404 | ictx->touch_x = (buf[0] << 4) | (buf[1] >> 4); | |
1405 | ictx->touch_y = 0xfff - ((buf[2] << 4) | (buf[1] & 0xf)); | |
1406 | input_report_abs(ictx->touch, ABS_X, ictx->touch_x); | |
1407 | input_report_abs(ictx->touch, ABS_Y, ictx->touch_y); | |
1408 | input_report_key(ictx->touch, BTN_TOUCH, 0x01); | |
1409 | input_sync(ictx->touch); | |
1410 | } | |
1411 | ||
1412 | static void imon_pad_to_keys(struct imon_context *ictx, unsigned char *buf) | |
1413 | { | |
1414 | int dir = 0; | |
24dec5da | 1415 | signed char rel_x = 0x00, rel_y = 0x00; |
21677cfc | 1416 | u16 timeout, threshold; |
eaf2bcc9 | 1417 | u32 scancode = KEY_RESERVED; |
693508df | 1418 | unsigned long flags; |
21677cfc JW |
1419 | |
1420 | /* | |
1421 | * The imon directional pad functions more like a touchpad. Bytes 3 & 4 | |
1422 | * contain a position coordinate (x,y), with each component ranging | |
1423 | * from -14 to 14. We want to down-sample this to only 4 discrete values | |
1424 | * for up/down/left/right arrow keys. Also, when you get too close to | |
25985edc | 1425 | * diagonals, it has a tendency to jump back and forth, so lets try to |
21677cfc JW |
1426 | * ignore when they get too close. |
1427 | */ | |
1428 | if (ictx->product != 0xffdc) { | |
1429 | /* first, pad to 8 bytes so it conforms with everything else */ | |
1430 | buf[5] = buf[6] = buf[7] = 0; | |
1431 | timeout = 500; /* in msecs */ | |
1432 | /* (2*threshold) x (2*threshold) square */ | |
1433 | threshold = pad_thresh ? pad_thresh : 28; | |
1434 | rel_x = buf[2]; | |
1435 | rel_y = buf[3]; | |
1436 | ||
6d741bfe | 1437 | if (ictx->rc_proto == RC_PROTO_BIT_OTHER && pad_stabilize) { |
21677cfc JW |
1438 | if ((buf[1] == 0) && ((rel_x != 0) || (rel_y != 0))) { |
1439 | dir = stabilize((int)rel_x, (int)rel_y, | |
1440 | timeout, threshold); | |
1441 | if (!dir) { | |
693508df JW |
1442 | spin_lock_irqsave(&ictx->kc_lock, |
1443 | flags); | |
21677cfc | 1444 | ictx->kc = KEY_UNKNOWN; |
693508df JW |
1445 | spin_unlock_irqrestore(&ictx->kc_lock, |
1446 | flags); | |
21677cfc JW |
1447 | return; |
1448 | } | |
1449 | buf[2] = dir & 0xFF; | |
1450 | buf[3] = (dir >> 8) & 0xFF; | |
d778d258 | 1451 | scancode = be32_to_cpu(*((__be32 *)buf)); |
21677cfc JW |
1452 | } |
1453 | } else { | |
eaf2bcc9 DH |
1454 | /* |
1455 | * Hack alert: instead of using keycodes, we have | |
1456 | * to use hard-coded scancodes here... | |
1457 | */ | |
21677cfc JW |
1458 | if (abs(rel_y) > abs(rel_x)) { |
1459 | buf[2] = (rel_y > 0) ? 0x7F : 0x80; | |
1460 | buf[3] = 0; | |
eaf2bcc9 DH |
1461 | if (rel_y > 0) |
1462 | scancode = 0x01007f00; /* KEY_DOWN */ | |
1463 | else | |
1464 | scancode = 0x01008000; /* KEY_UP */ | |
21677cfc JW |
1465 | } else { |
1466 | buf[2] = 0; | |
1467 | buf[3] = (rel_x > 0) ? 0x7F : 0x80; | |
eaf2bcc9 DH |
1468 | if (rel_x > 0) |
1469 | scancode = 0x0100007f; /* KEY_RIGHT */ | |
1470 | else | |
1471 | scancode = 0x01000080; /* KEY_LEFT */ | |
21677cfc JW |
1472 | } |
1473 | } | |
1474 | ||
1475 | /* | |
1476 | * Handle on-board decoded pad events for e.g. older VFD/iMON-Pad | |
1477 | * device (15c2:ffdc). The remote generates various codes from | |
1478 | * 0x68nnnnB7 to 0x6AnnnnB7, the left mouse button generates | |
1479 | * 0x688301b7 and the right one 0x688481b7. All other keys generate | |
1480 | * 0x2nnnnnnn. Position coordinate is encoded in buf[1] and buf[2] with | |
39c1cb2b | 1481 | * reversed endianness. Extract direction from buffer, rotate endianness, |
21677cfc JW |
1482 | * adjust sign and feed the values into stabilize(). The resulting codes |
1483 | * will be 0x01008000, 0x01007F00, which match the newer devices. | |
1484 | */ | |
1485 | } else { | |
1486 | timeout = 10; /* in msecs */ | |
1487 | /* (2*threshold) x (2*threshold) square */ | |
1488 | threshold = pad_thresh ? pad_thresh : 15; | |
1489 | ||
1490 | /* buf[1] is x */ | |
1491 | rel_x = (buf[1] & 0x08) | (buf[1] & 0x10) >> 2 | | |
1492 | (buf[1] & 0x20) >> 4 | (buf[1] & 0x40) >> 6; | |
1493 | if (buf[0] & 0x02) | |
1494 | rel_x |= ~0x10+1; | |
1495 | /* buf[2] is y */ | |
1496 | rel_y = (buf[2] & 0x08) | (buf[2] & 0x10) >> 2 | | |
1497 | (buf[2] & 0x20) >> 4 | (buf[2] & 0x40) >> 6; | |
1498 | if (buf[0] & 0x01) | |
1499 | rel_y |= ~0x10+1; | |
1500 | ||
1501 | buf[0] = 0x01; | |
1502 | buf[1] = buf[4] = buf[5] = buf[6] = buf[7] = 0; | |
1503 | ||
6d741bfe | 1504 | if (ictx->rc_proto == RC_PROTO_BIT_OTHER && pad_stabilize) { |
21677cfc JW |
1505 | dir = stabilize((int)rel_x, (int)rel_y, |
1506 | timeout, threshold); | |
1507 | if (!dir) { | |
693508df | 1508 | spin_lock_irqsave(&ictx->kc_lock, flags); |
21677cfc | 1509 | ictx->kc = KEY_UNKNOWN; |
693508df | 1510 | spin_unlock_irqrestore(&ictx->kc_lock, flags); |
21677cfc JW |
1511 | return; |
1512 | } | |
1513 | buf[2] = dir & 0xFF; | |
1514 | buf[3] = (dir >> 8) & 0xFF; | |
d778d258 | 1515 | scancode = be32_to_cpu(*((__be32 *)buf)); |
21677cfc | 1516 | } else { |
eaf2bcc9 DH |
1517 | /* |
1518 | * Hack alert: instead of using keycodes, we have | |
1519 | * to use hard-coded scancodes here... | |
1520 | */ | |
21677cfc JW |
1521 | if (abs(rel_y) > abs(rel_x)) { |
1522 | buf[2] = (rel_y > 0) ? 0x7F : 0x80; | |
1523 | buf[3] = 0; | |
eaf2bcc9 DH |
1524 | if (rel_y > 0) |
1525 | scancode = 0x01007f00; /* KEY_DOWN */ | |
1526 | else | |
1527 | scancode = 0x01008000; /* KEY_UP */ | |
21677cfc JW |
1528 | } else { |
1529 | buf[2] = 0; | |
1530 | buf[3] = (rel_x > 0) ? 0x7F : 0x80; | |
eaf2bcc9 DH |
1531 | if (rel_x > 0) |
1532 | scancode = 0x0100007f; /* KEY_RIGHT */ | |
1533 | else | |
1534 | scancode = 0x01000080; /* KEY_LEFT */ | |
21677cfc JW |
1535 | } |
1536 | } | |
1537 | } | |
eaf2bcc9 | 1538 | |
693508df JW |
1539 | if (scancode) { |
1540 | spin_lock_irqsave(&ictx->kc_lock, flags); | |
eaf2bcc9 | 1541 | ictx->kc = imon_remote_key_lookup(ictx, scancode); |
693508df JW |
1542 | spin_unlock_irqrestore(&ictx->kc_lock, flags); |
1543 | } | |
21677cfc JW |
1544 | } |
1545 | ||
255940e6 | 1546 | /* |
eaf2bcc9 DH |
1547 | * figure out if these is a press or a release. We don't actually |
1548 | * care about repeats, as those will be auto-generated within the IR | |
1549 | * subsystem for repeating scancodes. | |
1550 | */ | |
21677cfc JW |
1551 | static int imon_parse_press_type(struct imon_context *ictx, |
1552 | unsigned char *buf, u8 ktype) | |
1553 | { | |
1554 | int press_type = 0; | |
693508df JW |
1555 | unsigned long flags; |
1556 | ||
1557 | spin_lock_irqsave(&ictx->kc_lock, flags); | |
21677cfc JW |
1558 | |
1559 | /* key release of 0x02XXXXXX key */ | |
1560 | if (ictx->kc == KEY_RESERVED && buf[0] == 0x02 && buf[3] == 0x00) | |
1561 | ictx->kc = ictx->last_keycode; | |
1562 | ||
1563 | /* mouse button release on (some) 0xffdc devices */ | |
1564 | else if (ictx->kc == KEY_RESERVED && buf[0] == 0x68 && buf[1] == 0x82 && | |
1565 | buf[2] == 0x81 && buf[3] == 0xb7) | |
1566 | ictx->kc = ictx->last_keycode; | |
1567 | ||
1568 | /* mouse button release on (some other) 0xffdc devices */ | |
1569 | else if (ictx->kc == KEY_RESERVED && buf[0] == 0x01 && buf[1] == 0x00 && | |
1570 | buf[2] == 0x81 && buf[3] == 0xb7) | |
1571 | ictx->kc = ictx->last_keycode; | |
1572 | ||
eaf2bcc9 | 1573 | /* mce-specific button handling, no keyup events */ |
21677cfc | 1574 | else if (ktype == IMON_KEY_MCE) { |
eaf2bcc9 DH |
1575 | ictx->rc_toggle = buf[2]; |
1576 | press_type = 1; | |
21677cfc JW |
1577 | |
1578 | /* incoherent or irrelevant data */ | |
1579 | } else if (ictx->kc == KEY_RESERVED) | |
1580 | press_type = -EINVAL; | |
1581 | ||
1582 | /* key release of 0xXXXXXXb7 key */ | |
1583 | else if (ictx->release_code) | |
1584 | press_type = 0; | |
1585 | ||
1586 | /* this is a button press */ | |
1587 | else | |
1588 | press_type = 1; | |
1589 | ||
693508df JW |
1590 | spin_unlock_irqrestore(&ictx->kc_lock, flags); |
1591 | ||
21677cfc JW |
1592 | return press_type; |
1593 | } | |
1594 | ||
255940e6 | 1595 | /* |
21677cfc JW |
1596 | * Process the incoming packet |
1597 | */ | |
255940e6 | 1598 | /* |
f41003a2 SY |
1599 | * Convert bit count to time duration (in us) and submit |
1600 | * the value to lirc_dev. | |
1601 | */ | |
1602 | static void submit_data(struct imon_context *context) | |
1603 | { | |
1604 | DEFINE_IR_RAW_EVENT(ev); | |
1605 | ||
1606 | ev.pulse = context->rx.prev_bit; | |
1607 | ev.duration = US_TO_NS(context->rx.count * BIT_DURATION); | |
1608 | ir_raw_event_store_with_filter(context->rdev, &ev); | |
1609 | } | |
1610 | ||
255940e6 | 1611 | /* |
f41003a2 SY |
1612 | * Process the incoming packet |
1613 | */ | |
1614 | static void imon_incoming_ir_raw(struct imon_context *context, | |
21677cfc | 1615 | struct urb *urb, int intf) |
f41003a2 SY |
1616 | { |
1617 | int len = urb->actual_length; | |
1618 | unsigned char *buf = urb->transfer_buffer; | |
1619 | struct device *dev = context->dev; | |
1620 | int octet, bit; | |
1621 | unsigned char mask; | |
1622 | ||
1623 | if (len != 8) { | |
1624 | dev_warn(dev, "imon %s: invalid incoming packet size (len = %d, intf%d)\n", | |
1625 | __func__, len, intf); | |
1626 | return; | |
1627 | } | |
1628 | ||
1629 | if (debug) | |
1630 | dev_info(dev, "raw packet: %*ph\n", len, buf); | |
1631 | /* | |
1632 | * Translate received data to pulse and space lengths. | |
1633 | * Received data is active low, i.e. pulses are 0 and | |
1634 | * spaces are 1. | |
1635 | * | |
1636 | * My original algorithm was essentially similar to | |
1637 | * Changwoo Ryu's with the exception that he switched | |
1638 | * the incoming bits to active high and also fed an | |
1639 | * initial space to LIRC at the start of a new sequence | |
1640 | * if the previous bit was a pulse. | |
1641 | * | |
1642 | * I've decided to adopt his algorithm. | |
1643 | */ | |
1644 | ||
1645 | if (buf[7] == 1 && context->rx.initial_space) { | |
1646 | /* LIRC requires a leading space */ | |
1647 | context->rx.prev_bit = 0; | |
1648 | context->rx.count = 4; | |
1649 | submit_data(context); | |
1650 | context->rx.count = 0; | |
1651 | } | |
1652 | ||
1653 | for (octet = 0; octet < 5; ++octet) { | |
1654 | mask = 0x80; | |
1655 | for (bit = 0; bit < 8; ++bit) { | |
1656 | int curr_bit = !(buf[octet] & mask); | |
1657 | ||
1658 | if (curr_bit != context->rx.prev_bit) { | |
1659 | if (context->rx.count) { | |
1660 | submit_data(context); | |
1661 | context->rx.count = 0; | |
1662 | } | |
1663 | context->rx.prev_bit = curr_bit; | |
1664 | } | |
1665 | ++context->rx.count; | |
1666 | mask >>= 1; | |
1667 | } | |
1668 | } | |
1669 | ||
1670 | if (buf[7] == 10) { | |
1671 | if (context->rx.count) { | |
1672 | submit_data(context); | |
1673 | context->rx.count = 0; | |
1674 | } | |
1675 | context->rx.initial_space = context->rx.prev_bit; | |
1676 | } | |
1677 | ||
1678 | ir_raw_event_handle(context->rdev); | |
1679 | } | |
1680 | ||
1681 | static void imon_incoming_scancode(struct imon_context *ictx, | |
1682 | struct urb *urb, int intf) | |
21677cfc JW |
1683 | { |
1684 | int len = urb->actual_length; | |
1685 | unsigned char *buf = urb->transfer_buffer; | |
1686 | struct device *dev = ictx->dev; | |
693508df | 1687 | unsigned long flags; |
21677cfc | 1688 | u32 kc; |
eaf2bcc9 | 1689 | u64 scancode; |
21677cfc JW |
1690 | int press_type = 0; |
1691 | int msec; | |
1692 | struct timeval t; | |
1693 | static struct timeval prev_time = { 0, 0 }; | |
eaf2bcc9 | 1694 | u8 ktype; |
21677cfc | 1695 | |
21677cfc | 1696 | /* filter out junk data on the older 0xffdc imon devices */ |
bbe4690f | 1697 | if ((buf[0] == 0xff) && (buf[1] == 0xff) && (buf[2] == 0xff)) |
21677cfc JW |
1698 | return; |
1699 | ||
1700 | /* Figure out what key was pressed */ | |
21677cfc | 1701 | if (len == 8 && buf[7] == 0xee) { |
d778d258 | 1702 | scancode = be64_to_cpu(*((__be64 *)buf)); |
21677cfc | 1703 | ktype = IMON_KEY_PANEL; |
0d8053f2 | 1704 | kc = imon_panel_key_lookup(ictx, scancode); |
6ddc2be5 | 1705 | ictx->release_code = false; |
21677cfc | 1706 | } else { |
d778d258 | 1707 | scancode = be32_to_cpu(*((__be32 *)buf)); |
6d741bfe | 1708 | if (ictx->rc_proto == RC_PROTO_BIT_RC6_MCE) { |
eaf2bcc9 | 1709 | ktype = IMON_KEY_IMON; |
21677cfc JW |
1710 | if (buf[0] == 0x80) |
1711 | ktype = IMON_KEY_MCE; | |
eaf2bcc9 DH |
1712 | kc = imon_mce_key_lookup(ictx, scancode); |
1713 | } else { | |
1714 | ktype = IMON_KEY_IMON; | |
1715 | kc = imon_remote_key_lookup(ictx, scancode); | |
1716 | } | |
21677cfc JW |
1717 | } |
1718 | ||
693508df | 1719 | spin_lock_irqsave(&ictx->kc_lock, flags); |
21677cfc JW |
1720 | /* keyboard/mouse mode toggle button */ |
1721 | if (kc == KEY_KEYBOARD && !ictx->release_code) { | |
1722 | ictx->last_keycode = kc; | |
1723 | if (!nomouse) { | |
bd7e31bb | 1724 | ictx->pad_mouse = !ictx->pad_mouse; |
21677cfc JW |
1725 | dev_dbg(dev, "toggling to %s mode\n", |
1726 | ictx->pad_mouse ? "mouse" : "keyboard"); | |
693508df | 1727 | spin_unlock_irqrestore(&ictx->kc_lock, flags); |
21677cfc JW |
1728 | return; |
1729 | } else { | |
76f1ef42 | 1730 | ictx->pad_mouse = false; |
21677cfc JW |
1731 | dev_dbg(dev, "mouse mode disabled, passing key value\n"); |
1732 | } | |
1733 | } | |
1734 | ||
1735 | ictx->kc = kc; | |
693508df | 1736 | spin_unlock_irqrestore(&ictx->kc_lock, flags); |
21677cfc JW |
1737 | |
1738 | /* send touchscreen events through input subsystem if touchpad data */ | |
568964f6 | 1739 | if (ictx->touch && len == 8 && buf[7] == 0x86) { |
21677cfc | 1740 | imon_touch_event(ictx, buf); |
eaf2bcc9 | 1741 | return; |
21677cfc JW |
1742 | |
1743 | /* look for mouse events with pad in mouse mode */ | |
1744 | } else if (ictx->pad_mouse) { | |
1745 | if (imon_mouse_event(ictx, buf, len)) | |
1746 | return; | |
1747 | } | |
1748 | ||
1749 | /* Now for some special handling to convert pad input to arrow keys */ | |
1750 | if (((len == 5) && (buf[0] == 0x01) && (buf[4] == 0x00)) || | |
1751 | ((len == 8) && (buf[0] & 0x40) && | |
1752 | !(buf[1] & 0x1 || buf[1] >> 2 & 0x1))) { | |
1753 | len = 8; | |
1754 | imon_pad_to_keys(ictx, buf); | |
21677cfc JW |
1755 | } |
1756 | ||
1757 | if (debug) { | |
832d40c0 MCC |
1758 | printk(KERN_INFO "intf%d decoded packet: %*ph\n", |
1759 | intf, len, buf); | |
21677cfc JW |
1760 | } |
1761 | ||
1762 | press_type = imon_parse_press_type(ictx, buf, ktype); | |
1763 | if (press_type < 0) | |
1764 | goto not_input_data; | |
1765 | ||
eaf2bcc9 DH |
1766 | if (ktype != IMON_KEY_PANEL) { |
1767 | if (press_type == 0) | |
ca86674b | 1768 | rc_keyup(ictx->rdev); |
eaf2bcc9 | 1769 | else { |
6d741bfe SY |
1770 | if (ictx->rc_proto == RC_PROTO_BIT_RC6_MCE || |
1771 | ictx->rc_proto == RC_PROTO_BIT_OTHER) | |
120703f9 | 1772 | rc_keydown(ictx->rdev, |
6d741bfe | 1773 | ictx->rc_proto == RC_PROTO_BIT_RC6_MCE ? RC_PROTO_RC6_MCE : RC_PROTO_OTHER, |
120703f9 | 1774 | ictx->rc_scancode, ictx->rc_toggle); |
693508df | 1775 | spin_lock_irqsave(&ictx->kc_lock, flags); |
eaf2bcc9 | 1776 | ictx->last_keycode = ictx->kc; |
693508df | 1777 | spin_unlock_irqrestore(&ictx->kc_lock, flags); |
eaf2bcc9 DH |
1778 | } |
1779 | return; | |
1780 | } | |
21677cfc | 1781 | |
eaf2bcc9 | 1782 | /* Only panel type events left to process now */ |
693508df JW |
1783 | spin_lock_irqsave(&ictx->kc_lock, flags); |
1784 | ||
94215ccd | 1785 | do_gettimeofday(&t); |
eaf2bcc9 DH |
1786 | /* KEY_MUTE repeats from knob need to be suppressed */ |
1787 | if (ictx->kc == KEY_MUTE && ictx->kc == ictx->last_keycode) { | |
21677cfc | 1788 | msec = tv2int(&t, &prev_time); |
428cc763 | 1789 | if (msec < ictx->idev->rep[REP_DELAY]) { |
693508df | 1790 | spin_unlock_irqrestore(&ictx->kc_lock, flags); |
21677cfc | 1791 | return; |
693508df | 1792 | } |
21677cfc | 1793 | } |
94215ccd | 1794 | prev_time = t; |
693508df | 1795 | kc = ictx->kc; |
21677cfc | 1796 | |
693508df | 1797 | spin_unlock_irqrestore(&ictx->kc_lock, flags); |
21677cfc | 1798 | |
428cc763 JW |
1799 | input_report_key(ictx->idev, kc, press_type); |
1800 | input_sync(ictx->idev); | |
21677cfc | 1801 | |
eaf2bcc9 | 1802 | /* panel keys don't generate a release */ |
428cc763 JW |
1803 | input_report_key(ictx->idev, kc, 0); |
1804 | input_sync(ictx->idev); | |
21677cfc | 1805 | |
94215ccd | 1806 | spin_lock_irqsave(&ictx->kc_lock, flags); |
693508df | 1807 | ictx->last_keycode = kc; |
94215ccd | 1808 | spin_unlock_irqrestore(&ictx->kc_lock, flags); |
21677cfc JW |
1809 | |
1810 | return; | |
1811 | ||
21677cfc JW |
1812 | not_input_data: |
1813 | if (len != 8) { | |
25ec587c MCC |
1814 | dev_warn(dev, "imon %s: invalid incoming packet size (len = %d, intf%d)\n", |
1815 | __func__, len, intf); | |
21677cfc JW |
1816 | return; |
1817 | } | |
1818 | ||
1819 | /* iMON 2.4G associate frame */ | |
1820 | if (buf[0] == 0x00 && | |
1821 | buf[2] == 0xFF && /* REFID */ | |
1822 | buf[3] == 0xFF && | |
1823 | buf[4] == 0xFF && | |
1824 | buf[5] == 0xFF && /* iMON 2.4G */ | |
1825 | ((buf[6] == 0x4E && buf[7] == 0xDF) || /* LT */ | |
1826 | (buf[6] == 0x5E && buf[7] == 0xDF))) { /* DT */ | |
1827 | dev_warn(dev, "%s: remote associated refid=%02X\n", | |
1828 | __func__, buf[1]); | |
f789bf40 | 1829 | ictx->rf_isassociating = false; |
21677cfc JW |
1830 | } |
1831 | } | |
1832 | ||
255940e6 | 1833 | /* |
21677cfc JW |
1834 | * Callback function for USB core API: receive data |
1835 | */ | |
1836 | static void usb_rx_callback_intf0(struct urb *urb) | |
1837 | { | |
1838 | struct imon_context *ictx; | |
1839 | int intfnum = 0; | |
1840 | ||
1841 | if (!urb) | |
1842 | return; | |
1843 | ||
1844 | ictx = (struct imon_context *)urb->context; | |
8791d63a | 1845 | if (!ictx) |
21677cfc JW |
1846 | return; |
1847 | ||
8791d63a JW |
1848 | /* |
1849 | * if we get a callback before we're done configuring the hardware, we | |
1850 | * can't yet process the data, as there's nowhere to send it, but we | |
1851 | * still need to submit a new rx URB to avoid wedging the hardware | |
1852 | */ | |
1853 | if (!ictx->dev_present_intf0) | |
1854 | goto out; | |
1855 | ||
21677cfc JW |
1856 | switch (urb->status) { |
1857 | case -ENOENT: /* usbcore unlink successful! */ | |
1858 | return; | |
1859 | ||
1860 | case -ESHUTDOWN: /* transport endpoint was shut down */ | |
1861 | break; | |
1862 | ||
1863 | case 0: | |
f41003a2 SY |
1864 | if (ictx->rdev->driver_type == RC_DRIVER_IR_RAW) |
1865 | imon_incoming_ir_raw(ictx, urb, intfnum); | |
1866 | else | |
1867 | imon_incoming_scancode(ictx, urb, intfnum); | |
21677cfc JW |
1868 | break; |
1869 | ||
1870 | default: | |
1871 | dev_warn(ictx->dev, "imon %s: status(%d): ignored\n", | |
1872 | __func__, urb->status); | |
1873 | break; | |
1874 | } | |
1875 | ||
8791d63a | 1876 | out: |
21677cfc JW |
1877 | usb_submit_urb(ictx->rx_urb_intf0, GFP_ATOMIC); |
1878 | } | |
1879 | ||
1880 | static void usb_rx_callback_intf1(struct urb *urb) | |
1881 | { | |
1882 | struct imon_context *ictx; | |
1883 | int intfnum = 1; | |
1884 | ||
1885 | if (!urb) | |
1886 | return; | |
1887 | ||
1888 | ictx = (struct imon_context *)urb->context; | |
8791d63a | 1889 | if (!ictx) |
21677cfc JW |
1890 | return; |
1891 | ||
8791d63a JW |
1892 | /* |
1893 | * if we get a callback before we're done configuring the hardware, we | |
1894 | * can't yet process the data, as there's nowhere to send it, but we | |
1895 | * still need to submit a new rx URB to avoid wedging the hardware | |
1896 | */ | |
1897 | if (!ictx->dev_present_intf1) | |
1898 | goto out; | |
1899 | ||
21677cfc JW |
1900 | switch (urb->status) { |
1901 | case -ENOENT: /* usbcore unlink successful! */ | |
1902 | return; | |
1903 | ||
1904 | case -ESHUTDOWN: /* transport endpoint was shut down */ | |
1905 | break; | |
1906 | ||
1907 | case 0: | |
f41003a2 SY |
1908 | if (ictx->rdev->driver_type == RC_DRIVER_IR_RAW) |
1909 | imon_incoming_ir_raw(ictx, urb, intfnum); | |
1910 | else | |
1911 | imon_incoming_scancode(ictx, urb, intfnum); | |
21677cfc JW |
1912 | break; |
1913 | ||
1914 | default: | |
1915 | dev_warn(ictx->dev, "imon %s: status(%d): ignored\n", | |
1916 | __func__, urb->status); | |
1917 | break; | |
1918 | } | |
1919 | ||
8791d63a | 1920 | out: |
21677cfc JW |
1921 | usb_submit_urb(ictx->rx_urb_intf1, GFP_ATOMIC); |
1922 | } | |
1923 | ||
04292fc0 JW |
1924 | /* |
1925 | * The 0x15c2:0xffdc device ID was used for umpteen different imon | |
1926 | * devices, and all of them constantly spew interrupts, even when there | |
1927 | * is no actual data to report. However, byte 6 of this buffer looks like | |
1928 | * its unique across device variants, so we're trying to key off that to | |
1929 | * figure out which display type (if any) and what IR protocol the device | |
1930 | * actually supports. These devices have their IR protocol hard-coded into | |
1931 | * their firmware, they can't be changed on the fly like the newer hardware. | |
1932 | */ | |
1933 | static void imon_get_ffdc_type(struct imon_context *ictx) | |
1934 | { | |
1935 | u8 ffdc_cfg_byte = ictx->usb_rx_buf[6]; | |
1936 | u8 detected_display_type = IMON_DISPLAY_TYPE_NONE; | |
6d741bfe | 1937 | u64 allowed_protos = RC_PROTO_BIT_OTHER; |
04292fc0 JW |
1938 | |
1939 | switch (ffdc_cfg_byte) { | |
1940 | /* iMON Knob, no display, iMON IR + vol knob */ | |
1941 | case 0x21: | |
1942 | dev_info(ictx->dev, "0xffdc iMON Knob, iMON IR"); | |
1943 | ictx->display_supported = false; | |
1944 | break; | |
1945 | /* iMON 2.4G LT (usb stick), no display, iMON RF */ | |
1946 | case 0x4e: | |
1947 | dev_info(ictx->dev, "0xffdc iMON 2.4G LT, iMON RF"); | |
1948 | ictx->display_supported = false; | |
1949 | ictx->rf_device = true; | |
1950 | break; | |
1951 | /* iMON VFD, no IR (does have vol knob tho) */ | |
1952 | case 0x35: | |
1953 | dev_info(ictx->dev, "0xffdc iMON VFD + knob, no IR"); | |
1954 | detected_display_type = IMON_DISPLAY_TYPE_VFD; | |
1955 | break; | |
1956 | /* iMON VFD, iMON IR */ | |
1957 | case 0x24: | |
1958 | case 0x85: | |
1959 | dev_info(ictx->dev, "0xffdc iMON VFD, iMON IR"); | |
1960 | detected_display_type = IMON_DISPLAY_TYPE_VFD; | |
1961 | break; | |
1962 | /* iMON VFD, MCE IR */ | |
443b3919 | 1963 | case 0x46: |
04292fc0 JW |
1964 | case 0x9e: |
1965 | dev_info(ictx->dev, "0xffdc iMON VFD, MCE IR"); | |
1966 | detected_display_type = IMON_DISPLAY_TYPE_VFD; | |
6d741bfe | 1967 | allowed_protos = RC_PROTO_BIT_RC6_MCE; |
04292fc0 | 1968 | break; |
6ca7605b DR |
1969 | /* iMON VFD, iMON or MCE IR */ |
1970 | case 0x7e: | |
1971 | dev_info(ictx->dev, "0xffdc iMON VFD, iMON or MCE IR"); | |
1972 | detected_display_type = IMON_DISPLAY_TYPE_VFD; | |
1973 | allowed_protos |= RC_PROTO_BIT_RC6_MCE; | |
1974 | break; | |
04292fc0 JW |
1975 | /* iMON LCD, MCE IR */ |
1976 | case 0x9f: | |
1977 | dev_info(ictx->dev, "0xffdc iMON LCD, MCE IR"); | |
1978 | detected_display_type = IMON_DISPLAY_TYPE_LCD; | |
6d741bfe | 1979 | allowed_protos = RC_PROTO_BIT_RC6_MCE; |
04292fc0 JW |
1980 | break; |
1981 | default: | |
25ec587c | 1982 | dev_info(ictx->dev, "Unknown 0xffdc device, defaulting to VFD and iMON IR"); |
04292fc0 | 1983 | detected_display_type = IMON_DISPLAY_TYPE_VFD; |
372b4249 JW |
1984 | /* We don't know which one it is, allow user to set the |
1985 | * RC6 one from userspace if OTHER wasn't correct. */ | |
6d741bfe | 1986 | allowed_protos |= RC_PROTO_BIT_RC6_MCE; |
04292fc0 JW |
1987 | break; |
1988 | } | |
1989 | ||
1990 | printk(KERN_CONT " (id 0x%02x)\n", ffdc_cfg_byte); | |
1991 | ||
1992 | ictx->display_type = detected_display_type; | |
6d741bfe | 1993 | ictx->rc_proto = allowed_protos; |
04292fc0 JW |
1994 | } |
1995 | ||
1996 | static void imon_set_display_type(struct imon_context *ictx) | |
1997 | { | |
1998 | u8 configured_display_type = IMON_DISPLAY_TYPE_VFD; | |
1999 | ||
2000 | /* | |
2001 | * Try to auto-detect the type of display if the user hasn't set | |
2002 | * it by hand via the display_type modparam. Default is VFD. | |
2003 | */ | |
2004 | ||
2005 | if (display_type == IMON_DISPLAY_TYPE_AUTO) { | |
2006 | switch (ictx->product) { | |
2007 | case 0xffdc: | |
2008 | /* set in imon_get_ffdc_type() */ | |
2009 | configured_display_type = ictx->display_type; | |
2010 | break; | |
2011 | case 0x0034: | |
2012 | case 0x0035: | |
2013 | configured_display_type = IMON_DISPLAY_TYPE_VGA; | |
2014 | break; | |
2015 | case 0x0038: | |
2016 | case 0x0039: | |
2017 | case 0x0045: | |
2018 | configured_display_type = IMON_DISPLAY_TYPE_LCD; | |
2019 | break; | |
2020 | case 0x003c: | |
2021 | case 0x0041: | |
2022 | case 0x0042: | |
2023 | case 0x0043: | |
f41003a2 SY |
2024 | case 0x8001: |
2025 | case 0xff30: | |
04292fc0 JW |
2026 | configured_display_type = IMON_DISPLAY_TYPE_NONE; |
2027 | ictx->display_supported = false; | |
2028 | break; | |
2029 | case 0x0036: | |
2030 | case 0x0044: | |
f41003a2 | 2031 | case 0xffda: |
04292fc0 JW |
2032 | default: |
2033 | configured_display_type = IMON_DISPLAY_TYPE_VFD; | |
2034 | break; | |
2035 | } | |
2036 | } else { | |
2037 | configured_display_type = display_type; | |
2038 | if (display_type == IMON_DISPLAY_TYPE_NONE) | |
2039 | ictx->display_supported = false; | |
2040 | else | |
2041 | ictx->display_supported = true; | |
25ec587c MCC |
2042 | dev_info(ictx->dev, "%s: overriding display type to %d via modparam\n", |
2043 | __func__, display_type); | |
04292fc0 JW |
2044 | } |
2045 | ||
2046 | ictx->display_type = configured_display_type; | |
2047 | } | |
2048 | ||
d8b4b582 | 2049 | static struct rc_dev *imon_init_rdev(struct imon_context *ictx) |
eaf2bcc9 | 2050 | { |
d8b4b582 | 2051 | struct rc_dev *rdev; |
eaf2bcc9 | 2052 | int ret; |
c25895c7 CIK |
2053 | static const unsigned char fp_packet[] = { |
2054 | 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x88 }; | |
eaf2bcc9 | 2055 | |
f41003a2 SY |
2056 | rdev = rc_allocate_device(ictx->dev_descr->flags & IMON_IR_RAW ? |
2057 | RC_DRIVER_IR_RAW : RC_DRIVER_SCANCODE); | |
d8b4b582 | 2058 | if (!rdev) { |
eaf2bcc9 DH |
2059 | dev_err(ictx->dev, "remote control dev allocation failed\n"); |
2060 | goto out; | |
2061 | } | |
2062 | ||
2063 | snprintf(ictx->name_rdev, sizeof(ictx->name_rdev), | |
2064 | "iMON Remote (%04x:%04x)", ictx->vendor, ictx->product); | |
2065 | usb_make_path(ictx->usbdev_intf0, ictx->phys_rdev, | |
2066 | sizeof(ictx->phys_rdev)); | |
2067 | strlcat(ictx->phys_rdev, "/input0", sizeof(ictx->phys_rdev)); | |
2068 | ||
518f4b26 | 2069 | rdev->device_name = ictx->name_rdev; |
d8b4b582 DH |
2070 | rdev->input_phys = ictx->phys_rdev; |
2071 | usb_to_input_id(ictx->usbdev_intf0, &rdev->input_id); | |
eaf2bcc9 | 2072 | rdev->dev.parent = ictx->dev; |
eaf2bcc9 | 2073 | |
d8b4b582 | 2074 | rdev->priv = ictx; |
f41003a2 | 2075 | if (ictx->dev_descr->flags & IMON_IR_RAW) |
6d741bfe | 2076 | rdev->allowed_protocols = RC_PROTO_BIT_ALL_IR_DECODER; |
f41003a2 SY |
2077 | else |
2078 | /* iMON PAD or MCE */ | |
6d741bfe SY |
2079 | rdev->allowed_protocols = RC_PROTO_BIT_OTHER | |
2080 | RC_PROTO_BIT_RC6_MCE; | |
d8b4b582 DH |
2081 | rdev->change_protocol = imon_ir_change_protocol; |
2082 | rdev->driver_name = MOD_NAME; | |
eaf2bcc9 | 2083 | |
04292fc0 JW |
2084 | /* Enable front-panel buttons and/or knobs */ |
2085 | memcpy(ictx->usb_tx_buf, &fp_packet, sizeof(fp_packet)); | |
2086 | ret = send_packet(ictx); | |
2087 | /* Not fatal, but warn about it */ | |
2088 | if (ret) | |
2089 | dev_info(ictx->dev, "panel buttons/knobs setup failed\n"); | |
2090 | ||
7d2edfc2 | 2091 | if (ictx->product == 0xffdc) { |
04292fc0 | 2092 | imon_get_ffdc_type(ictx); |
6d741bfe | 2093 | rdev->allowed_protocols = ictx->rc_proto; |
7d2edfc2 | 2094 | } |
04292fc0 JW |
2095 | |
2096 | imon_set_display_type(ictx); | |
2097 | ||
6d741bfe | 2098 | if (ictx->rc_proto == RC_PROTO_BIT_RC6_MCE || |
f41003a2 | 2099 | ictx->dev_descr->flags & IMON_IR_RAW) |
7d2edfc2 JW |
2100 | rdev->map_name = RC_MAP_IMON_MCE; |
2101 | else | |
2102 | rdev->map_name = RC_MAP_IMON_PAD; | |
2103 | ||
d8b4b582 | 2104 | ret = rc_register_device(rdev); |
eaf2bcc9 DH |
2105 | if (ret < 0) { |
2106 | dev_err(ictx->dev, "remote input dev register failed\n"); | |
2107 | goto out; | |
2108 | } | |
2109 | ||
2110 | return rdev; | |
2111 | ||
2112 | out: | |
d8b4b582 | 2113 | rc_free_device(rdev); |
eaf2bcc9 DH |
2114 | return NULL; |
2115 | } | |
2116 | ||
21677cfc JW |
2117 | static struct input_dev *imon_init_idev(struct imon_context *ictx) |
2118 | { | |
0d8053f2 | 2119 | struct imon_panel_key_table *key_table = ictx->dev_descr->key_table; |
21677cfc | 2120 | struct input_dev *idev; |
21677cfc | 2121 | int ret, i; |
21677cfc JW |
2122 | |
2123 | idev = input_allocate_device(); | |
da4a7339 | 2124 | if (!idev) |
eaf2bcc9 | 2125 | goto out; |
21677cfc | 2126 | |
21677cfc | 2127 | snprintf(ictx->name_idev, sizeof(ictx->name_idev), |
eaf2bcc9 DH |
2128 | "iMON Panel, Knob and Mouse(%04x:%04x)", |
2129 | ictx->vendor, ictx->product); | |
21677cfc JW |
2130 | idev->name = ictx->name_idev; |
2131 | ||
2132 | usb_make_path(ictx->usbdev_intf0, ictx->phys_idev, | |
2133 | sizeof(ictx->phys_idev)); | |
eaf2bcc9 | 2134 | strlcat(ictx->phys_idev, "/input1", sizeof(ictx->phys_idev)); |
21677cfc JW |
2135 | idev->phys = ictx->phys_idev; |
2136 | ||
db190fc1 | 2137 | idev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP) | BIT_MASK(EV_REL); |
21677cfc JW |
2138 | |
2139 | idev->keybit[BIT_WORD(BTN_MOUSE)] = | |
2140 | BIT_MASK(BTN_LEFT) | BIT_MASK(BTN_RIGHT); | |
2141 | idev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y) | | |
2142 | BIT_MASK(REL_WHEEL); | |
2143 | ||
2144 | /* panel and/or knob code support */ | |
0d8053f2 UE |
2145 | for (i = 0; key_table[i].hw_code != 0; i++) { |
2146 | u32 kc = key_table[i].keycode; | |
21677cfc JW |
2147 | __set_bit(kc, idev->keybit); |
2148 | } | |
2149 | ||
21677cfc JW |
2150 | usb_to_input_id(ictx->usbdev_intf0, &idev->id); |
2151 | idev->dev.parent = ictx->dev; | |
eaf2bcc9 | 2152 | input_set_drvdata(idev, ictx); |
21677cfc | 2153 | |
eaf2bcc9 | 2154 | ret = input_register_device(idev); |
21677cfc | 2155 | if (ret < 0) { |
eaf2bcc9 DH |
2156 | dev_err(ictx->dev, "input dev register failed\n"); |
2157 | goto out; | |
21677cfc JW |
2158 | } |
2159 | ||
2160 | return idev; | |
2161 | ||
eaf2bcc9 | 2162 | out: |
21677cfc | 2163 | input_free_device(idev); |
21677cfc JW |
2164 | return NULL; |
2165 | } | |
2166 | ||
2167 | static struct input_dev *imon_init_touch(struct imon_context *ictx) | |
2168 | { | |
2169 | struct input_dev *touch; | |
2170 | int ret; | |
2171 | ||
2172 | touch = input_allocate_device(); | |
da4a7339 | 2173 | if (!touch) |
21677cfc | 2174 | goto touch_alloc_failed; |
21677cfc JW |
2175 | |
2176 | snprintf(ictx->name_touch, sizeof(ictx->name_touch), | |
2177 | "iMON USB Touchscreen (%04x:%04x)", | |
2178 | ictx->vendor, ictx->product); | |
2179 | touch->name = ictx->name_touch; | |
2180 | ||
2181 | usb_make_path(ictx->usbdev_intf1, ictx->phys_touch, | |
2182 | sizeof(ictx->phys_touch)); | |
eaf2bcc9 | 2183 | strlcat(ictx->phys_touch, "/input2", sizeof(ictx->phys_touch)); |
21677cfc JW |
2184 | touch->phys = ictx->phys_touch; |
2185 | ||
2186 | touch->evbit[0] = | |
2187 | BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS); | |
2188 | touch->keybit[BIT_WORD(BTN_TOUCH)] = | |
2189 | BIT_MASK(BTN_TOUCH); | |
2190 | input_set_abs_params(touch, ABS_X, | |
2191 | 0x00, 0xfff, 0, 0); | |
2192 | input_set_abs_params(touch, ABS_Y, | |
2193 | 0x00, 0xfff, 0, 0); | |
2194 | ||
2195 | input_set_drvdata(touch, ictx); | |
2196 | ||
2197 | usb_to_input_id(ictx->usbdev_intf1, &touch->id); | |
2198 | touch->dev.parent = ictx->dev; | |
2199 | ret = input_register_device(touch); | |
2200 | if (ret < 0) { | |
2201 | dev_info(ictx->dev, "touchscreen input dev register failed\n"); | |
2202 | goto touch_register_failed; | |
2203 | } | |
2204 | ||
2205 | return touch; | |
2206 | ||
2207 | touch_register_failed: | |
aeb35ebc | 2208 | input_free_device(touch); |
21677cfc JW |
2209 | |
2210 | touch_alloc_failed: | |
2211 | return NULL; | |
2212 | } | |
2213 | ||
2214 | static bool imon_find_endpoints(struct imon_context *ictx, | |
2215 | struct usb_host_interface *iface_desc) | |
2216 | { | |
2217 | struct usb_endpoint_descriptor *ep; | |
2218 | struct usb_endpoint_descriptor *rx_endpoint = NULL; | |
2219 | struct usb_endpoint_descriptor *tx_endpoint = NULL; | |
2220 | int ifnum = iface_desc->desc.bInterfaceNumber; | |
2221 | int num_endpts = iface_desc->desc.bNumEndpoints; | |
2222 | int i, ep_dir, ep_type; | |
f789bf40 JW |
2223 | bool ir_ep_found = false; |
2224 | bool display_ep_found = false; | |
2225 | bool tx_control = false; | |
21677cfc JW |
2226 | |
2227 | /* | |
2228 | * Scan the endpoint list and set: | |
2229 | * first input endpoint = IR endpoint | |
2230 | * first output endpoint = display endpoint | |
2231 | */ | |
2232 | for (i = 0; i < num_endpts && !(ir_ep_found && display_ep_found); ++i) { | |
2233 | ep = &iface_desc->endpoint[i].desc; | |
2234 | ep_dir = ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK; | |
9408d8f0 | 2235 | ep_type = usb_endpoint_type(ep); |
21677cfc JW |
2236 | |
2237 | if (!ir_ep_found && ep_dir == USB_DIR_IN && | |
2238 | ep_type == USB_ENDPOINT_XFER_INT) { | |
2239 | ||
2240 | rx_endpoint = ep; | |
f789bf40 | 2241 | ir_ep_found = true; |
21677cfc JW |
2242 | dev_dbg(ictx->dev, "%s: found IR endpoint\n", __func__); |
2243 | ||
2244 | } else if (!display_ep_found && ep_dir == USB_DIR_OUT && | |
2245 | ep_type == USB_ENDPOINT_XFER_INT) { | |
2246 | tx_endpoint = ep; | |
f789bf40 | 2247 | display_ep_found = true; |
21677cfc JW |
2248 | dev_dbg(ictx->dev, "%s: found display endpoint\n", __func__); |
2249 | } | |
2250 | } | |
2251 | ||
2252 | if (ifnum == 0) { | |
2253 | ictx->rx_endpoint_intf0 = rx_endpoint; | |
2254 | /* | |
2255 | * tx is used to send characters to lcd/vfd, associate RF | |
2256 | * remotes, set IR protocol, and maybe more... | |
2257 | */ | |
2258 | ictx->tx_endpoint = tx_endpoint; | |
2259 | } else { | |
2260 | ictx->rx_endpoint_intf1 = rx_endpoint; | |
2261 | } | |
2262 | ||
2263 | /* | |
2264 | * If we didn't find a display endpoint, this is probably one of the | |
2265 | * newer iMON devices that use control urb instead of interrupt | |
2266 | */ | |
2267 | if (!display_ep_found) { | |
f789bf40 JW |
2268 | tx_control = true; |
2269 | display_ep_found = true; | |
25ec587c MCC |
2270 | dev_dbg(ictx->dev, "%s: device uses control endpoint, not interface OUT endpoint\n", |
2271 | __func__); | |
21677cfc JW |
2272 | } |
2273 | ||
2274 | /* | |
2275 | * Some iMON receivers have no display. Unfortunately, it seems | |
2276 | * that SoundGraph recycles device IDs between devices both with | |
2277 | * and without... :\ | |
2278 | */ | |
2279 | if (ictx->display_type == IMON_DISPLAY_TYPE_NONE) { | |
f789bf40 | 2280 | display_ep_found = false; |
21677cfc JW |
2281 | dev_dbg(ictx->dev, "%s: device has no display\n", __func__); |
2282 | } | |
2283 | ||
2284 | /* | |
2285 | * iMON Touch devices have a VGA touchscreen, but no "display", as | |
2286 | * that refers to e.g. /dev/lcd0 (a character device LCD or VFD). | |
2287 | */ | |
2288 | if (ictx->display_type == IMON_DISPLAY_TYPE_VGA) { | |
f789bf40 | 2289 | display_ep_found = false; |
21677cfc JW |
2290 | dev_dbg(ictx->dev, "%s: iMON Touch device found\n", __func__); |
2291 | } | |
2292 | ||
2293 | /* Input endpoint is mandatory */ | |
2294 | if (!ir_ep_found) | |
e2302501 | 2295 | pr_err("no valid input (IR) endpoint found\n"); |
21677cfc JW |
2296 | |
2297 | ictx->tx_control = tx_control; | |
2298 | ||
2299 | if (display_ep_found) | |
2300 | ictx->display_supported = true; | |
2301 | ||
2302 | return ir_ep_found; | |
2303 | ||
2304 | } | |
2305 | ||
f7d141b3 KB |
2306 | static struct imon_context *imon_init_intf0(struct usb_interface *intf, |
2307 | const struct usb_device_id *id) | |
21677cfc JW |
2308 | { |
2309 | struct imon_context *ictx; | |
2310 | struct urb *rx_urb; | |
2311 | struct urb *tx_urb; | |
2312 | struct device *dev = &intf->dev; | |
2313 | struct usb_host_interface *iface_desc; | |
1f71baef | 2314 | int ret = -ENOMEM; |
21677cfc | 2315 | |
a8c779eb | 2316 | ictx = kzalloc(sizeof(*ictx), GFP_KERNEL); |
3e70b256 | 2317 | if (!ictx) |
21677cfc | 2318 | goto exit; |
3e70b256 | 2319 | |
21677cfc | 2320 | rx_urb = usb_alloc_urb(0, GFP_KERNEL); |
15241919 | 2321 | if (!rx_urb) |
21677cfc | 2322 | goto rx_urb_alloc_failed; |
21677cfc | 2323 | tx_urb = usb_alloc_urb(0, GFP_KERNEL); |
15241919 | 2324 | if (!tx_urb) |
21677cfc | 2325 | goto tx_urb_alloc_failed; |
21677cfc JW |
2326 | |
2327 | mutex_init(&ictx->lock); | |
693508df | 2328 | spin_lock_init(&ictx->kc_lock); |
21677cfc JW |
2329 | |
2330 | mutex_lock(&ictx->lock); | |
2331 | ||
2332 | ictx->dev = dev; | |
2333 | ictx->usbdev_intf0 = usb_get_dev(interface_to_usbdev(intf)); | |
21677cfc JW |
2334 | ictx->rx_urb_intf0 = rx_urb; |
2335 | ictx->tx_urb = tx_urb; | |
bbe4690f | 2336 | ictx->rf_device = false; |
21677cfc | 2337 | |
7c073fff DW |
2338 | init_completion(&ictx->tx.finished); |
2339 | ||
21677cfc JW |
2340 | ictx->vendor = le16_to_cpu(ictx->usbdev_intf0->descriptor.idVendor); |
2341 | ictx->product = le16_to_cpu(ictx->usbdev_intf0->descriptor.idProduct); | |
2342 | ||
0d8053f2 UE |
2343 | /* save drive info for later accessing the panel/knob key table */ |
2344 | ictx->dev_descr = (struct imon_usb_dev_descr *)id->driver_info; | |
f7d141b3 | 2345 | /* default send_packet delay is 5ms but some devices need more */ |
0d8053f2 UE |
2346 | ictx->send_packet_delay = ictx->dev_descr->flags & |
2347 | IMON_NEED_20MS_PKT_DELAY ? 20 : 5; | |
f7d141b3 | 2348 | |
1f71baef | 2349 | ret = -ENODEV; |
21677cfc | 2350 | iface_desc = intf->cur_altsetting; |
1f71baef | 2351 | if (!imon_find_endpoints(ictx, iface_desc)) { |
21677cfc | 2352 | goto find_endpoint_failed; |
1f71baef | 2353 | } |
21677cfc | 2354 | |
21677cfc JW |
2355 | usb_fill_int_urb(ictx->rx_urb_intf0, ictx->usbdev_intf0, |
2356 | usb_rcvintpipe(ictx->usbdev_intf0, | |
2357 | ictx->rx_endpoint_intf0->bEndpointAddress), | |
2358 | ictx->usb_rx_buf, sizeof(ictx->usb_rx_buf), | |
2359 | usb_rx_callback_intf0, ictx, | |
2360 | ictx->rx_endpoint_intf0->bInterval); | |
2361 | ||
2362 | ret = usb_submit_urb(ictx->rx_urb_intf0, GFP_KERNEL); | |
2363 | if (ret) { | |
e2302501 | 2364 | pr_err("usb_submit_urb failed for intf0 (%d)\n", ret); |
21677cfc JW |
2365 | goto urb_submit_failed; |
2366 | } | |
2367 | ||
9ad77eb5 JW |
2368 | ictx->idev = imon_init_idev(ictx); |
2369 | if (!ictx->idev) { | |
2370 | dev_err(dev, "%s: input device setup failed\n", __func__); | |
2371 | goto idev_setup_failed; | |
2372 | } | |
2373 | ||
2374 | ictx->rdev = imon_init_rdev(ictx); | |
2375 | if (!ictx->rdev) { | |
2376 | dev_err(dev, "%s: rc device setup failed\n", __func__); | |
2377 | goto rdev_setup_failed; | |
2378 | } | |
2379 | ||
6f6b90c9 JW |
2380 | ictx->dev_present_intf0 = true; |
2381 | ||
23ef710e | 2382 | mutex_unlock(&ictx->lock); |
21677cfc JW |
2383 | return ictx; |
2384 | ||
eaf2bcc9 DH |
2385 | rdev_setup_failed: |
2386 | input_unregister_device(ictx->idev); | |
21677cfc | 2387 | idev_setup_failed: |
9ad77eb5 JW |
2388 | usb_kill_urb(ictx->rx_urb_intf0); |
2389 | urb_submit_failed: | |
21677cfc | 2390 | find_endpoint_failed: |
e87cb470 | 2391 | usb_put_dev(ictx->usbdev_intf0); |
21677cfc JW |
2392 | mutex_unlock(&ictx->lock); |
2393 | usb_free_urb(tx_urb); | |
2394 | tx_urb_alloc_failed: | |
2395 | usb_free_urb(rx_urb); | |
2396 | rx_urb_alloc_failed: | |
2397 | kfree(ictx); | |
2398 | exit: | |
2399 | dev_err(dev, "unable to initialize intf0, err %d\n", ret); | |
2400 | ||
2401 | return NULL; | |
2402 | } | |
2403 | ||
2404 | static struct imon_context *imon_init_intf1(struct usb_interface *intf, | |
2405 | struct imon_context *ictx) | |
2406 | { | |
2407 | struct urb *rx_urb; | |
2408 | struct usb_host_interface *iface_desc; | |
1f71baef | 2409 | int ret = -ENOMEM; |
21677cfc JW |
2410 | |
2411 | rx_urb = usb_alloc_urb(0, GFP_KERNEL); | |
15241919 | 2412 | if (!rx_urb) |
21677cfc | 2413 | goto rx_urb_alloc_failed; |
21677cfc JW |
2414 | |
2415 | mutex_lock(&ictx->lock); | |
2416 | ||
2417 | if (ictx->display_type == IMON_DISPLAY_TYPE_VGA) { | |
b17ec78a | 2418 | timer_setup(&ictx->ttimer, imon_touch_display_timeout, 0); |
21677cfc JW |
2419 | } |
2420 | ||
2421 | ictx->usbdev_intf1 = usb_get_dev(interface_to_usbdev(intf)); | |
21677cfc JW |
2422 | ictx->rx_urb_intf1 = rx_urb; |
2423 | ||
1f71baef | 2424 | ret = -ENODEV; |
21677cfc JW |
2425 | iface_desc = intf->cur_altsetting; |
2426 | if (!imon_find_endpoints(ictx, iface_desc)) | |
2427 | goto find_endpoint_failed; | |
2428 | ||
2429 | if (ictx->display_type == IMON_DISPLAY_TYPE_VGA) { | |
2430 | ictx->touch = imon_init_touch(ictx); | |
2431 | if (!ictx->touch) | |
2432 | goto touch_setup_failed; | |
2433 | } else | |
2434 | ictx->touch = NULL; | |
2435 | ||
2436 | usb_fill_int_urb(ictx->rx_urb_intf1, ictx->usbdev_intf1, | |
2437 | usb_rcvintpipe(ictx->usbdev_intf1, | |
2438 | ictx->rx_endpoint_intf1->bEndpointAddress), | |
2439 | ictx->usb_rx_buf, sizeof(ictx->usb_rx_buf), | |
2440 | usb_rx_callback_intf1, ictx, | |
2441 | ictx->rx_endpoint_intf1->bInterval); | |
2442 | ||
2443 | ret = usb_submit_urb(ictx->rx_urb_intf1, GFP_KERNEL); | |
2444 | ||
2445 | if (ret) { | |
e2302501 | 2446 | pr_err("usb_submit_urb failed for intf1 (%d)\n", ret); |
21677cfc JW |
2447 | goto urb_submit_failed; |
2448 | } | |
2449 | ||
6f6b90c9 JW |
2450 | ictx->dev_present_intf1 = true; |
2451 | ||
23ef710e | 2452 | mutex_unlock(&ictx->lock); |
21677cfc JW |
2453 | return ictx; |
2454 | ||
2455 | urb_submit_failed: | |
20cd1959 | 2456 | if (ictx->touch) |
21677cfc | 2457 | input_unregister_device(ictx->touch); |
21677cfc JW |
2458 | touch_setup_failed: |
2459 | find_endpoint_failed: | |
e87cb470 | 2460 | usb_put_dev(ictx->usbdev_intf1); |
21677cfc JW |
2461 | mutex_unlock(&ictx->lock); |
2462 | usb_free_urb(rx_urb); | |
2463 | rx_urb_alloc_failed: | |
8791d63a | 2464 | dev_err(ictx->dev, "unable to initialize intf1, err %d\n", ret); |
21677cfc JW |
2465 | |
2466 | return NULL; | |
2467 | } | |
2468 | ||
21677cfc JW |
2469 | static void imon_init_display(struct imon_context *ictx, |
2470 | struct usb_interface *intf) | |
2471 | { | |
2472 | int ret; | |
2473 | ||
2474 | dev_dbg(ictx->dev, "Registering iMON display with sysfs\n"); | |
2475 | ||
2476 | /* set up sysfs entry for built-in clock */ | |
6aa209e4 | 2477 | ret = sysfs_create_group(&intf->dev.kobj, &imon_display_attr_group); |
21677cfc | 2478 | if (ret) |
25ec587c MCC |
2479 | dev_err(ictx->dev, "Could not create display sysfs entries(%d)", |
2480 | ret); | |
21677cfc JW |
2481 | |
2482 | if (ictx->display_type == IMON_DISPLAY_TYPE_LCD) | |
2483 | ret = usb_register_dev(intf, &imon_lcd_class); | |
2484 | else | |
2485 | ret = usb_register_dev(intf, &imon_vfd_class); | |
2486 | if (ret) | |
2487 | /* Not a fatal error, so ignore */ | |
25ec587c | 2488 | dev_info(ictx->dev, "could not get a minor number for display\n"); |
21677cfc JW |
2489 | |
2490 | } | |
2491 | ||
255940e6 | 2492 | /* |
21677cfc JW |
2493 | * Callback function for USB core API: Probe |
2494 | */ | |
4c62e976 GKH |
2495 | static int imon_probe(struct usb_interface *interface, |
2496 | const struct usb_device_id *id) | |
21677cfc JW |
2497 | { |
2498 | struct usb_device *usbdev = NULL; | |
2499 | struct usb_host_interface *iface_desc = NULL; | |
2500 | struct usb_interface *first_if; | |
2501 | struct device *dev = &interface->dev; | |
76a2d21d | 2502 | int ifnum, sysfs_err; |
21677cfc JW |
2503 | int ret = 0; |
2504 | struct imon_context *ictx = NULL; | |
2505 | struct imon_context *first_if_ctx = NULL; | |
2506 | u16 vendor, product; | |
21677cfc | 2507 | |
21677cfc JW |
2508 | usbdev = usb_get_dev(interface_to_usbdev(interface)); |
2509 | iface_desc = interface->cur_altsetting; | |
2510 | ifnum = iface_desc->desc.bInterfaceNumber; | |
2511 | vendor = le16_to_cpu(usbdev->descriptor.idVendor); | |
2512 | product = le16_to_cpu(usbdev->descriptor.idProduct); | |
2513 | ||
2514 | dev_dbg(dev, "%s: found iMON device (%04x:%04x, intf%d)\n", | |
2515 | __func__, vendor, product, ifnum); | |
2516 | ||
2517 | /* prevent races probing devices w/multiple interfaces */ | |
2518 | mutex_lock(&driver_lock); | |
2519 | ||
2520 | first_if = usb_ifnum_to_if(usbdev, 0); | |
58fd55e8 AY |
2521 | if (!first_if) { |
2522 | ret = -ENODEV; | |
2523 | goto fail; | |
2524 | } | |
2525 | ||
8350e155 | 2526 | first_if_ctx = usb_get_intfdata(first_if); |
21677cfc JW |
2527 | |
2528 | if (ifnum == 0) { | |
f7d141b3 | 2529 | ictx = imon_init_intf0(interface, id); |
21677cfc | 2530 | if (!ictx) { |
e2302501 | 2531 | pr_err("failed to initialize context!\n"); |
21677cfc JW |
2532 | ret = -ENODEV; |
2533 | goto fail; | |
2534 | } | |
2535 | ||
21677cfc | 2536 | } else { |
7d54ba0e KB |
2537 | /* this is the secondary interface on the device */ |
2538 | ||
2539 | /* fail early if first intf failed to register */ | |
2540 | if (!first_if_ctx) { | |
2541 | ret = -ENODEV; | |
2542 | goto fail; | |
2543 | } | |
2544 | ||
21677cfc JW |
2545 | ictx = imon_init_intf1(interface, first_if_ctx); |
2546 | if (!ictx) { | |
e2302501 | 2547 | pr_err("failed to attach to context!\n"); |
21677cfc JW |
2548 | ret = -ENODEV; |
2549 | goto fail; | |
2550 | } | |
2551 | ||
2552 | } | |
2553 | ||
2554 | usb_set_intfdata(interface, ictx); | |
2555 | ||
2556 | if (ifnum == 0) { | |
23ef710e JW |
2557 | mutex_lock(&ictx->lock); |
2558 | ||
bbe4690f JW |
2559 | if (product == 0xffdc && ictx->rf_device) { |
2560 | sysfs_err = sysfs_create_group(&interface->dev.kobj, | |
6aa209e4 | 2561 | &imon_rf_attr_group); |
bbe4690f | 2562 | if (sysfs_err) |
e2302501 JP |
2563 | pr_err("Could not create RF sysfs entries(%d)\n", |
2564 | sysfs_err); | |
bbe4690f JW |
2565 | } |
2566 | ||
21677cfc JW |
2567 | if (ictx->display_supported) |
2568 | imon_init_display(ictx, interface); | |
23ef710e JW |
2569 | |
2570 | mutex_unlock(&ictx->lock); | |
21677cfc JW |
2571 | } |
2572 | ||
25ec587c MCC |
2573 | dev_info(dev, "iMON device (%04x:%04x, intf%d) on usb<%d:%d> initialized\n", |
2574 | vendor, product, ifnum, | |
21677cfc JW |
2575 | usbdev->bus->busnum, usbdev->devnum); |
2576 | ||
21677cfc | 2577 | mutex_unlock(&driver_lock); |
e87cb470 | 2578 | usb_put_dev(usbdev); |
21677cfc JW |
2579 | |
2580 | return 0; | |
2581 | ||
2582 | fail: | |
2583 | mutex_unlock(&driver_lock); | |
e87cb470 | 2584 | usb_put_dev(usbdev); |
21677cfc JW |
2585 | dev_err(dev, "unable to register, err %d\n", ret); |
2586 | ||
2587 | return ret; | |
2588 | } | |
2589 | ||
255940e6 | 2590 | /* |
21677cfc JW |
2591 | * Callback function for USB core API: disconnect |
2592 | */ | |
4c62e976 | 2593 | static void imon_disconnect(struct usb_interface *interface) |
21677cfc JW |
2594 | { |
2595 | struct imon_context *ictx; | |
2596 | struct device *dev; | |
2597 | int ifnum; | |
2598 | ||
2599 | /* prevent races with multi-interface device probing and display_open */ | |
2600 | mutex_lock(&driver_lock); | |
2601 | ||
2602 | ictx = usb_get_intfdata(interface); | |
2603 | dev = ictx->dev; | |
2604 | ifnum = interface->cur_altsetting->desc.bInterfaceNumber; | |
2605 | ||
21677cfc JW |
2606 | /* |
2607 | * sysfs_remove_group is safe to call even if sysfs_create_group | |
2608 | * hasn't been called | |
2609 | */ | |
6aa209e4 JW |
2610 | sysfs_remove_group(&interface->dev.kobj, &imon_display_attr_group); |
2611 | sysfs_remove_group(&interface->dev.kobj, &imon_rf_attr_group); | |
21677cfc JW |
2612 | |
2613 | usb_set_intfdata(interface, NULL); | |
2614 | ||
2615 | /* Abort ongoing write */ | |
2616 | if (ictx->tx.busy) { | |
2617 | usb_kill_urb(ictx->tx_urb); | |
7c073fff | 2618 | complete(&ictx->tx.finished); |
21677cfc JW |
2619 | } |
2620 | ||
2621 | if (ifnum == 0) { | |
f789bf40 | 2622 | ictx->dev_present_intf0 = false; |
21677cfc | 2623 | usb_kill_urb(ictx->rx_urb_intf0); |
e87cb470 | 2624 | usb_put_dev(ictx->usbdev_intf0); |
eaf2bcc9 | 2625 | input_unregister_device(ictx->idev); |
d8b4b582 | 2626 | rc_unregister_device(ictx->rdev); |
21677cfc JW |
2627 | if (ictx->display_supported) { |
2628 | if (ictx->display_type == IMON_DISPLAY_TYPE_LCD) | |
2629 | usb_deregister_dev(interface, &imon_lcd_class); | |
76a2d21d | 2630 | else if (ictx->display_type == IMON_DISPLAY_TYPE_VFD) |
21677cfc JW |
2631 | usb_deregister_dev(interface, &imon_vfd_class); |
2632 | } | |
2633 | } else { | |
f789bf40 | 2634 | ictx->dev_present_intf1 = false; |
21677cfc | 2635 | usb_kill_urb(ictx->rx_urb_intf1); |
e87cb470 | 2636 | usb_put_dev(ictx->usbdev_intf1); |
76a2d21d | 2637 | if (ictx->display_type == IMON_DISPLAY_TYPE_VGA) { |
21677cfc | 2638 | input_unregister_device(ictx->touch); |
76a2d21d JW |
2639 | del_timer_sync(&ictx->ttimer); |
2640 | } | |
21677cfc JW |
2641 | } |
2642 | ||
76a2d21d JW |
2643 | if (!ictx->dev_present_intf0 && !ictx->dev_present_intf1) |
2644 | free_imon_context(ictx); | |
21677cfc JW |
2645 | |
2646 | mutex_unlock(&driver_lock); | |
2647 | ||
2648 | dev_dbg(dev, "%s: iMON device (intf%d) disconnected\n", | |
2649 | __func__, ifnum); | |
2650 | } | |
2651 | ||
2652 | static int imon_suspend(struct usb_interface *intf, pm_message_t message) | |
2653 | { | |
2654 | struct imon_context *ictx = usb_get_intfdata(intf); | |
2655 | int ifnum = intf->cur_altsetting->desc.bInterfaceNumber; | |
2656 | ||
2657 | if (ifnum == 0) | |
2658 | usb_kill_urb(ictx->rx_urb_intf0); | |
2659 | else | |
2660 | usb_kill_urb(ictx->rx_urb_intf1); | |
2661 | ||
2662 | return 0; | |
2663 | } | |
2664 | ||
2665 | static int imon_resume(struct usb_interface *intf) | |
2666 | { | |
2667 | int rc = 0; | |
2668 | struct imon_context *ictx = usb_get_intfdata(intf); | |
2669 | int ifnum = intf->cur_altsetting->desc.bInterfaceNumber; | |
2670 | ||
2671 | if (ifnum == 0) { | |
2672 | usb_fill_int_urb(ictx->rx_urb_intf0, ictx->usbdev_intf0, | |
2673 | usb_rcvintpipe(ictx->usbdev_intf0, | |
2674 | ictx->rx_endpoint_intf0->bEndpointAddress), | |
2675 | ictx->usb_rx_buf, sizeof(ictx->usb_rx_buf), | |
2676 | usb_rx_callback_intf0, ictx, | |
2677 | ictx->rx_endpoint_intf0->bInterval); | |
2678 | ||
2679 | rc = usb_submit_urb(ictx->rx_urb_intf0, GFP_ATOMIC); | |
2680 | ||
2681 | } else { | |
2682 | usb_fill_int_urb(ictx->rx_urb_intf1, ictx->usbdev_intf1, | |
2683 | usb_rcvintpipe(ictx->usbdev_intf1, | |
2684 | ictx->rx_endpoint_intf1->bEndpointAddress), | |
2685 | ictx->usb_rx_buf, sizeof(ictx->usb_rx_buf), | |
2686 | usb_rx_callback_intf1, ictx, | |
2687 | ictx->rx_endpoint_intf1->bInterval); | |
2688 | ||
2689 | rc = usb_submit_urb(ictx->rx_urb_intf1, GFP_ATOMIC); | |
2690 | } | |
2691 | ||
2692 | return rc; | |
2693 | } | |
2694 | ||
ecb3b2b3 | 2695 | module_usb_driver(imon_driver); |