Commit | Line | Data |
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3cfa958b | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
21677cfc JW |
2 | /* |
3 | * imon.c: input and display driver for SoundGraph iMON IR/VFD/LCD | |
4 | * | |
693508df | 5 | * Copyright(C) 2010 Jarod Wilson <jarod@wilsonet.com> |
21677cfc JW |
6 | * Portions based on the original lirc_imon driver, |
7 | * Copyright(C) 2004 Venky Raju(dev@venky.ws) | |
8 | * | |
9 | * Huge thanks to R. Geoff Newbury for invaluable debugging on the | |
10 | * 0xffdc iMON devices, and for sending me one to hack on, without | |
11 | * which the support for them wouldn't be nearly as good. Thanks | |
12 | * also to the numerous 0xffdc device owners that tested auto-config | |
13 | * support for me and provided debug dumps from their devices. | |
21677cfc JW |
14 | */ |
15 | ||
e2302501 JP |
16 | #define pr_fmt(fmt) KBUILD_MODNAME ":%s: " fmt, __func__ |
17 | ||
21677cfc JW |
18 | #include <linux/errno.h> |
19 | #include <linux/init.h> | |
20 | #include <linux/kernel.h> | |
1edba648 | 21 | #include <linux/ktime.h> |
21677cfc JW |
22 | #include <linux/module.h> |
23 | #include <linux/slab.h> | |
24 | #include <linux/uaccess.h> | |
47a09b08 | 25 | #include <linux/ratelimit.h> |
21677cfc JW |
26 | |
27 | #include <linux/input.h> | |
28 | #include <linux/usb.h> | |
29 | #include <linux/usb/input.h> | |
6bda9644 | 30 | #include <media/rc-core.h> |
21677cfc | 31 | |
21677cfc JW |
32 | #include <linux/timer.h> |
33 | ||
34 | #define MOD_AUTHOR "Jarod Wilson <jarod@wilsonet.com>" | |
35 | #define MOD_DESC "Driver for SoundGraph iMON MultiMedia IR/Display" | |
36 | #define MOD_NAME "imon" | |
8791d63a | 37 | #define MOD_VERSION "0.9.4" |
21677cfc JW |
38 | |
39 | #define DISPLAY_MINOR_BASE 144 | |
40 | #define DEVICE_NAME "lcd%d" | |
41 | ||
42 | #define BUF_CHUNK_SIZE 8 | |
43 | #define BUF_SIZE 128 | |
44 | ||
45 | #define BIT_DURATION 250 /* each bit received is 250us */ | |
46 | ||
47 | #define IMON_CLOCK_ENABLE_PACKETS 2 | |
21677cfc JW |
48 | |
49 | /*** P R O T O T Y P E S ***/ | |
50 | ||
51 | /* USB Callback prototypes */ | |
52 | static int imon_probe(struct usb_interface *interface, | |
53 | const struct usb_device_id *id); | |
54 | static void imon_disconnect(struct usb_interface *interface); | |
55 | static void usb_rx_callback_intf0(struct urb *urb); | |
56 | static void usb_rx_callback_intf1(struct urb *urb); | |
57 | static void usb_tx_callback(struct urb *urb); | |
58 | ||
59 | /* suspend/resume support */ | |
60 | static int imon_resume(struct usb_interface *intf); | |
61 | static int imon_suspend(struct usb_interface *intf, pm_message_t message); | |
62 | ||
63 | /* Display file_operations function prototypes */ | |
64 | static int display_open(struct inode *inode, struct file *file); | |
65 | static int display_close(struct inode *inode, struct file *file); | |
66 | ||
67 | /* VFD write operation */ | |
d6740d86 | 68 | static ssize_t vfd_write(struct file *file, const char __user *buf, |
21677cfc JW |
69 | size_t n_bytes, loff_t *pos); |
70 | ||
71 | /* LCD file_operations override function prototypes */ | |
d6740d86 | 72 | static ssize_t lcd_write(struct file *file, const char __user *buf, |
21677cfc JW |
73 | size_t n_bytes, loff_t *pos); |
74 | ||
75 | /*** G L O B A L S ***/ | |
76 | ||
0d8053f2 UE |
77 | struct imon_panel_key_table { |
78 | u64 hw_code; | |
79 | u32 keycode; | |
80 | }; | |
81 | ||
82 | struct imon_usb_dev_descr { | |
83 | __u16 flags; | |
84 | #define IMON_NO_FLAGS 0 | |
85 | #define IMON_NEED_20MS_PKT_DELAY 1 | |
cf330691 | 86 | #define IMON_SUPPRESS_REPEATED_KEYS 2 |
0d8053f2 UE |
87 | struct imon_panel_key_table key_table[]; |
88 | }; | |
89 | ||
21677cfc JW |
90 | struct imon_context { |
91 | struct device *dev; | |
21677cfc JW |
92 | /* Newer devices have two interfaces */ |
93 | struct usb_device *usbdev_intf0; | |
94 | struct usb_device *usbdev_intf1; | |
95 | ||
96 | bool display_supported; /* not all controllers do */ | |
97 | bool display_isopen; /* display port has been opened */ | |
bbe4690f | 98 | bool rf_device; /* true if iMON 2.4G LT/DT RF device */ |
21677cfc JW |
99 | bool rf_isassociating; /* RF remote associating */ |
100 | bool dev_present_intf0; /* USB device presence, interface 0 */ | |
101 | bool dev_present_intf1; /* USB device presence, interface 1 */ | |
102 | ||
103 | struct mutex lock; /* to lock this object */ | |
104 | wait_queue_head_t remove_ok; /* For unexpected USB disconnects */ | |
105 | ||
106 | struct usb_endpoint_descriptor *rx_endpoint_intf0; | |
107 | struct usb_endpoint_descriptor *rx_endpoint_intf1; | |
108 | struct usb_endpoint_descriptor *tx_endpoint; | |
109 | struct urb *rx_urb_intf0; | |
110 | struct urb *rx_urb_intf1; | |
111 | struct urb *tx_urb; | |
112 | bool tx_control; | |
113 | unsigned char usb_rx_buf[8]; | |
114 | unsigned char usb_tx_buf[8]; | |
26ccbec4 | 115 | unsigned int send_packet_delay; |
21677cfc JW |
116 | |
117 | struct tx_t { | |
118 | unsigned char data_buf[35]; /* user data buffer */ | |
119 | struct completion finished; /* wait for write to finish */ | |
120 | bool busy; /* write in progress */ | |
121 | int status; /* status of tx completion */ | |
122 | } tx; | |
123 | ||
124 | u16 vendor; /* usb vendor ID */ | |
125 | u16 product; /* usb product ID */ | |
126 | ||
d8b4b582 | 127 | struct rc_dev *rdev; /* rc-core device for remote */ |
eaf2bcc9 | 128 | struct input_dev *idev; /* input device for panel & IR mouse */ |
21677cfc JW |
129 | struct input_dev *touch; /* input device for touchscreen */ |
130 | ||
693508df | 131 | spinlock_t kc_lock; /* make sure we get keycodes right */ |
21677cfc JW |
132 | u32 kc; /* current input keycode */ |
133 | u32 last_keycode; /* last reported input keycode */ | |
eaf2bcc9 DH |
134 | u32 rc_scancode; /* the computed remote scancode */ |
135 | u8 rc_toggle; /* the computed remote toggle bit */ | |
6d741bfe | 136 | u64 rc_proto; /* iMON or MCE (RC6) IR protocol? */ |
21677cfc JW |
137 | bool release_code; /* some keys send a release code */ |
138 | ||
139 | u8 display_type; /* store the display type */ | |
140 | bool pad_mouse; /* toggle kbd(0)/mouse(1) mode */ | |
141 | ||
eaf2bcc9 DH |
142 | char name_rdev[128]; /* rc input device name */ |
143 | char phys_rdev[64]; /* rc input device phys path */ | |
144 | ||
21677cfc JW |
145 | char name_idev[128]; /* input device name */ |
146 | char phys_idev[64]; /* input device phys path */ | |
21677cfc JW |
147 | |
148 | char name_touch[128]; /* touch screen name */ | |
149 | char phys_touch[64]; /* touch screen phys path */ | |
150 | struct timer_list ttimer; /* touch screen timer */ | |
151 | int touch_x; /* x coordinate on touchscreen */ | |
152 | int touch_y; /* y coordinate on touchscreen */ | |
cf330691 FG |
153 | const struct imon_usb_dev_descr *dev_descr; |
154 | /* device description with key */ | |
155 | /* table for front panels */ | |
db264d4c TH |
156 | /* |
157 | * Fields for deferring free_imon_context(). | |
158 | * | |
159 | * Since reference to "struct imon_context" is stored into | |
160 | * "struct file"->private_data, we need to remember | |
161 | * how many file descriptors might access this "struct imon_context". | |
162 | */ | |
163 | refcount_t users; | |
164 | /* | |
165 | * Use a flag for telling display_open()/vfd_write()/lcd_write() that | |
166 | * imon_disconnect() was already called. | |
167 | */ | |
168 | bool disconnected; | |
169 | /* | |
170 | * We need to wait for RCU grace period in order to allow | |
171 | * display_open() to safely check ->disconnected and increment ->users. | |
172 | */ | |
173 | struct rcu_head rcu; | |
21677cfc JW |
174 | }; |
175 | ||
176 | #define TOUCH_TIMEOUT (HZ/30) | |
21677cfc JW |
177 | |
178 | /* vfd character device file operations */ | |
179 | static const struct file_operations vfd_fops = { | |
180 | .owner = THIS_MODULE, | |
db264d4c TH |
181 | .open = display_open, |
182 | .write = vfd_write, | |
183 | .release = display_close, | |
6038f373 | 184 | .llseek = noop_llseek, |
21677cfc JW |
185 | }; |
186 | ||
187 | /* lcd character device file operations */ | |
188 | static const struct file_operations lcd_fops = { | |
189 | .owner = THIS_MODULE, | |
db264d4c TH |
190 | .open = display_open, |
191 | .write = lcd_write, | |
192 | .release = display_close, | |
6038f373 | 193 | .llseek = noop_llseek, |
21677cfc JW |
194 | }; |
195 | ||
196 | enum { | |
197 | IMON_DISPLAY_TYPE_AUTO = 0, | |
198 | IMON_DISPLAY_TYPE_VFD = 1, | |
199 | IMON_DISPLAY_TYPE_LCD = 2, | |
200 | IMON_DISPLAY_TYPE_VGA = 3, | |
201 | IMON_DISPLAY_TYPE_NONE = 4, | |
202 | }; | |
203 | ||
21677cfc JW |
204 | enum { |
205 | IMON_KEY_IMON = 0, | |
206 | IMON_KEY_MCE = 1, | |
207 | IMON_KEY_PANEL = 2, | |
208 | }; | |
209 | ||
0d8053f2 UE |
210 | static struct usb_class_driver imon_vfd_class = { |
211 | .name = DEVICE_NAME, | |
212 | .fops = &vfd_fops, | |
213 | .minor_base = DISPLAY_MINOR_BASE, | |
214 | }; | |
215 | ||
216 | static struct usb_class_driver imon_lcd_class = { | |
217 | .name = DEVICE_NAME, | |
218 | .fops = &lcd_fops, | |
219 | .minor_base = DISPLAY_MINOR_BASE, | |
220 | }; | |
221 | ||
222 | /* imon receiver front panel/knob key table */ | |
223 | static const struct imon_usb_dev_descr imon_default_table = { | |
224 | .flags = IMON_NO_FLAGS, | |
225 | .key_table = { | |
226 | { 0x000000000f00ffeell, KEY_MEDIA }, /* Go */ | |
227 | { 0x000000001200ffeell, KEY_UP }, | |
228 | { 0x000000001300ffeell, KEY_DOWN }, | |
229 | { 0x000000001400ffeell, KEY_LEFT }, | |
230 | { 0x000000001500ffeell, KEY_RIGHT }, | |
231 | { 0x000000001600ffeell, KEY_ENTER }, | |
232 | { 0x000000001700ffeell, KEY_ESC }, | |
233 | { 0x000000001f00ffeell, KEY_AUDIO }, | |
234 | { 0x000000002000ffeell, KEY_VIDEO }, | |
235 | { 0x000000002100ffeell, KEY_CAMERA }, | |
236 | { 0x000000002700ffeell, KEY_DVD }, | |
237 | { 0x000000002300ffeell, KEY_TV }, | |
238 | { 0x000000002b00ffeell, KEY_EXIT }, | |
239 | { 0x000000002c00ffeell, KEY_SELECT }, | |
240 | { 0x000000002d00ffeell, KEY_MENU }, | |
241 | { 0x000000000500ffeell, KEY_PREVIOUS }, | |
242 | { 0x000000000700ffeell, KEY_REWIND }, | |
243 | { 0x000000000400ffeell, KEY_STOP }, | |
244 | { 0x000000003c00ffeell, KEY_PLAYPAUSE }, | |
245 | { 0x000000000800ffeell, KEY_FASTFORWARD }, | |
246 | { 0x000000000600ffeell, KEY_NEXT }, | |
247 | { 0x000000010000ffeell, KEY_RIGHT }, | |
248 | { 0x000001000000ffeell, KEY_LEFT }, | |
249 | { 0x000000003d00ffeell, KEY_SELECT }, | |
250 | { 0x000100000000ffeell, KEY_VOLUMEUP }, | |
251 | { 0x010000000000ffeell, KEY_VOLUMEDOWN }, | |
252 | { 0x000000000100ffeell, KEY_MUTE }, | |
253 | /* 0xffdc iMON MCE VFD */ | |
254 | { 0x00010000ffffffeell, KEY_VOLUMEUP }, | |
255 | { 0x01000000ffffffeell, KEY_VOLUMEDOWN }, | |
256 | { 0x00000001ffffffeell, KEY_MUTE }, | |
257 | { 0x0000000fffffffeell, KEY_MEDIA }, | |
258 | { 0x00000012ffffffeell, KEY_UP }, | |
259 | { 0x00000013ffffffeell, KEY_DOWN }, | |
260 | { 0x00000014ffffffeell, KEY_LEFT }, | |
261 | { 0x00000015ffffffeell, KEY_RIGHT }, | |
262 | { 0x00000016ffffffeell, KEY_ENTER }, | |
263 | { 0x00000017ffffffeell, KEY_ESC }, | |
264 | /* iMON Knob values */ | |
265 | { 0x000100ffffffffeell, KEY_VOLUMEUP }, | |
266 | { 0x010000ffffffffeell, KEY_VOLUMEDOWN }, | |
267 | { 0x000008ffffffffeell, KEY_MUTE }, | |
268 | { 0, KEY_RESERVED }, | |
269 | } | |
270 | }; | |
271 | ||
272 | static const struct imon_usb_dev_descr imon_OEM_VFD = { | |
273 | .flags = IMON_NEED_20MS_PKT_DELAY, | |
274 | .key_table = { | |
275 | { 0x000000000f00ffeell, KEY_MEDIA }, /* Go */ | |
276 | { 0x000000001200ffeell, KEY_UP }, | |
277 | { 0x000000001300ffeell, KEY_DOWN }, | |
278 | { 0x000000001400ffeell, KEY_LEFT }, | |
279 | { 0x000000001500ffeell, KEY_RIGHT }, | |
280 | { 0x000000001600ffeell, KEY_ENTER }, | |
281 | { 0x000000001700ffeell, KEY_ESC }, | |
282 | { 0x000000001f00ffeell, KEY_AUDIO }, | |
283 | { 0x000000002b00ffeell, KEY_EXIT }, | |
284 | { 0x000000002c00ffeell, KEY_SELECT }, | |
285 | { 0x000000002d00ffeell, KEY_MENU }, | |
286 | { 0x000000000500ffeell, KEY_PREVIOUS }, | |
287 | { 0x000000000700ffeell, KEY_REWIND }, | |
288 | { 0x000000000400ffeell, KEY_STOP }, | |
289 | { 0x000000003c00ffeell, KEY_PLAYPAUSE }, | |
290 | { 0x000000000800ffeell, KEY_FASTFORWARD }, | |
291 | { 0x000000000600ffeell, KEY_NEXT }, | |
292 | { 0x000000010000ffeell, KEY_RIGHT }, | |
293 | { 0x000001000000ffeell, KEY_LEFT }, | |
294 | { 0x000000003d00ffeell, KEY_SELECT }, | |
295 | { 0x000100000000ffeell, KEY_VOLUMEUP }, | |
296 | { 0x010000000000ffeell, KEY_VOLUMEDOWN }, | |
297 | { 0x000000000100ffeell, KEY_MUTE }, | |
298 | /* 0xffdc iMON MCE VFD */ | |
299 | { 0x00010000ffffffeell, KEY_VOLUMEUP }, | |
300 | { 0x01000000ffffffeell, KEY_VOLUMEDOWN }, | |
301 | { 0x00000001ffffffeell, KEY_MUTE }, | |
302 | { 0x0000000fffffffeell, KEY_MEDIA }, | |
303 | { 0x00000012ffffffeell, KEY_UP }, | |
304 | { 0x00000013ffffffeell, KEY_DOWN }, | |
305 | { 0x00000014ffffffeell, KEY_LEFT }, | |
306 | { 0x00000015ffffffeell, KEY_RIGHT }, | |
307 | { 0x00000016ffffffeell, KEY_ENTER }, | |
308 | { 0x00000017ffffffeell, KEY_ESC }, | |
309 | /* iMON Knob values */ | |
310 | { 0x000100ffffffffeell, KEY_VOLUMEUP }, | |
311 | { 0x010000ffffffffeell, KEY_VOLUMEDOWN }, | |
312 | { 0x000008ffffffffeell, KEY_MUTE }, | |
313 | { 0, KEY_RESERVED }, | |
314 | } | |
26ccbec4 KB |
315 | }; |
316 | ||
7b5fc071 UE |
317 | /* imon receiver front panel/knob key table for DH102*/ |
318 | static const struct imon_usb_dev_descr imon_DH102 = { | |
319 | .flags = IMON_NO_FLAGS, | |
320 | .key_table = { | |
321 | { 0x000100000000ffeell, KEY_VOLUMEUP }, | |
322 | { 0x010000000000ffeell, KEY_VOLUMEDOWN }, | |
323 | { 0x000000010000ffeell, KEY_MUTE }, | |
324 | { 0x0000000f0000ffeell, KEY_MEDIA }, | |
325 | { 0x000000120000ffeell, KEY_UP }, | |
326 | { 0x000000130000ffeell, KEY_DOWN }, | |
327 | { 0x000000140000ffeell, KEY_LEFT }, | |
328 | { 0x000000150000ffeell, KEY_RIGHT }, | |
329 | { 0x000000160000ffeell, KEY_ENTER }, | |
330 | { 0x000000170000ffeell, KEY_ESC }, | |
331 | { 0x0000002b0000ffeell, KEY_EXIT }, | |
332 | { 0x0000002c0000ffeell, KEY_SELECT }, | |
333 | { 0x0000002d0000ffeell, KEY_MENU }, | |
334 | { 0, KEY_RESERVED } | |
335 | } | |
336 | }; | |
337 | ||
cf330691 FG |
338 | /* imon ultrabay front panel key table */ |
339 | static const struct imon_usb_dev_descr ultrabay_table = { | |
340 | .flags = IMON_SUPPRESS_REPEATED_KEYS, | |
341 | .key_table = { | |
342 | { 0x0000000f0000ffeell, KEY_MEDIA }, /* Go */ | |
343 | { 0x000000000100ffeell, KEY_UP }, | |
344 | { 0x000000000001ffeell, KEY_DOWN }, | |
345 | { 0x000000160000ffeell, KEY_ENTER }, | |
346 | { 0x0000001f0000ffeell, KEY_AUDIO }, /* Music */ | |
347 | { 0x000000200000ffeell, KEY_VIDEO }, /* Movie */ | |
348 | { 0x000000210000ffeell, KEY_CAMERA }, /* Photo */ | |
349 | { 0x000000270000ffeell, KEY_DVD }, /* DVD */ | |
350 | { 0x000000230000ffeell, KEY_TV }, /* TV */ | |
351 | { 0x000000050000ffeell, KEY_PREVIOUS }, /* Previous */ | |
352 | { 0x000000070000ffeell, KEY_REWIND }, | |
353 | { 0x000000040000ffeell, KEY_STOP }, | |
354 | { 0x000000020000ffeell, KEY_PLAYPAUSE }, | |
355 | { 0x000000080000ffeell, KEY_FASTFORWARD }, | |
356 | { 0x000000060000ffeell, KEY_NEXT }, /* Next */ | |
357 | { 0x000100000000ffeell, KEY_VOLUMEUP }, | |
358 | { 0x010000000000ffeell, KEY_VOLUMEDOWN }, | |
359 | { 0x000000010000ffeell, KEY_MUTE }, | |
360 | { 0, KEY_RESERVED }, | |
361 | } | |
362 | }; | |
363 | ||
21677cfc JW |
364 | /* |
365 | * USB Device ID for iMON USB Control Boards | |
366 | * | |
367 | * The Windows drivers contain 6 different inf files, more or less one for | |
368 | * each new device until the 0x0034-0x0046 devices, which all use the same | |
369 | * driver. Some of the devices in the 34-46 range haven't been definitively | |
370 | * identified yet. Early devices have either a TriGem Computer, Inc. or a | |
371 | * Samsung vendor ID (0x0aa8 and 0x04e8 respectively), while all later | |
372 | * devices use the SoundGraph vendor ID (0x15c2). This driver only supports | |
373 | * the ffdc and later devices, which do onboard decoding. | |
374 | */ | |
5fad16b5 | 375 | static const struct usb_device_id imon_usb_id_table[] = { |
21677cfc JW |
376 | /* |
377 | * Several devices with this same device ID, all use iMON_PAD.inf | |
378 | * SoundGraph iMON PAD (IR & VFD) | |
379 | * SoundGraph iMON PAD (IR & LCD) | |
380 | * SoundGraph iMON Knob (IR only) | |
381 | */ | |
0d8053f2 UE |
382 | { USB_DEVICE(0x15c2, 0xffdc), |
383 | .driver_info = (unsigned long)&imon_default_table }, | |
21677cfc JW |
384 | |
385 | /* | |
386 | * Newer devices, all driven by the latest iMON Windows driver, full | |
387 | * list of device IDs extracted via 'strings Setup/data1.hdr |grep 15c2' | |
388 | * Need user input to fill in details on unknown devices. | |
389 | */ | |
390 | /* SoundGraph iMON OEM Touch LCD (IR & 7" VGA LCD) */ | |
0d8053f2 | 391 | { USB_DEVICE(0x15c2, 0x0034), |
7b5fc071 | 392 | .driver_info = (unsigned long)&imon_DH102 }, |
21677cfc | 393 | /* SoundGraph iMON OEM Touch LCD (IR & 4.3" VGA LCD) */ |
0d8053f2 UE |
394 | { USB_DEVICE(0x15c2, 0x0035), |
395 | .driver_info = (unsigned long)&imon_default_table}, | |
21677cfc | 396 | /* SoundGraph iMON OEM VFD (IR & VFD) */ |
0d8053f2 UE |
397 | { USB_DEVICE(0x15c2, 0x0036), |
398 | .driver_info = (unsigned long)&imon_OEM_VFD }, | |
21677cfc | 399 | /* device specifics unknown */ |
0d8053f2 UE |
400 | { USB_DEVICE(0x15c2, 0x0037), |
401 | .driver_info = (unsigned long)&imon_default_table}, | |
21677cfc | 402 | /* SoundGraph iMON OEM LCD (IR & LCD) */ |
0d8053f2 UE |
403 | { USB_DEVICE(0x15c2, 0x0038), |
404 | .driver_info = (unsigned long)&imon_default_table}, | |
21677cfc | 405 | /* SoundGraph iMON UltraBay (IR & LCD) */ |
0d8053f2 UE |
406 | { USB_DEVICE(0x15c2, 0x0039), |
407 | .driver_info = (unsigned long)&imon_default_table}, | |
21677cfc | 408 | /* device specifics unknown */ |
0d8053f2 UE |
409 | { USB_DEVICE(0x15c2, 0x003a), |
410 | .driver_info = (unsigned long)&imon_default_table}, | |
21677cfc | 411 | /* device specifics unknown */ |
0d8053f2 UE |
412 | { USB_DEVICE(0x15c2, 0x003b), |
413 | .driver_info = (unsigned long)&imon_default_table}, | |
21677cfc | 414 | /* SoundGraph iMON OEM Inside (IR only) */ |
0d8053f2 UE |
415 | { USB_DEVICE(0x15c2, 0x003c), |
416 | .driver_info = (unsigned long)&imon_default_table}, | |
21677cfc | 417 | /* device specifics unknown */ |
0d8053f2 UE |
418 | { USB_DEVICE(0x15c2, 0x003d), |
419 | .driver_info = (unsigned long)&imon_default_table}, | |
21677cfc | 420 | /* device specifics unknown */ |
0d8053f2 UE |
421 | { USB_DEVICE(0x15c2, 0x003e), |
422 | .driver_info = (unsigned long)&imon_default_table}, | |
21677cfc | 423 | /* device specifics unknown */ |
0d8053f2 UE |
424 | { USB_DEVICE(0x15c2, 0x003f), |
425 | .driver_info = (unsigned long)&imon_default_table}, | |
21677cfc | 426 | /* device specifics unknown */ |
0d8053f2 UE |
427 | { USB_DEVICE(0x15c2, 0x0040), |
428 | .driver_info = (unsigned long)&imon_default_table}, | |
21677cfc | 429 | /* SoundGraph iMON MINI (IR only) */ |
0d8053f2 UE |
430 | { USB_DEVICE(0x15c2, 0x0041), |
431 | .driver_info = (unsigned long)&imon_default_table}, | |
21677cfc | 432 | /* Antec Veris Multimedia Station EZ External (IR only) */ |
0d8053f2 UE |
433 | { USB_DEVICE(0x15c2, 0x0042), |
434 | .driver_info = (unsigned long)&imon_default_table}, | |
21677cfc | 435 | /* Antec Veris Multimedia Station Basic Internal (IR only) */ |
0d8053f2 UE |
436 | { USB_DEVICE(0x15c2, 0x0043), |
437 | .driver_info = (unsigned long)&imon_default_table}, | |
21677cfc | 438 | /* Antec Veris Multimedia Station Elite (IR & VFD) */ |
0d8053f2 UE |
439 | { USB_DEVICE(0x15c2, 0x0044), |
440 | .driver_info = (unsigned long)&imon_default_table}, | |
21677cfc | 441 | /* Antec Veris Multimedia Station Premiere (IR & LCD) */ |
0d8053f2 UE |
442 | { USB_DEVICE(0x15c2, 0x0045), |
443 | .driver_info = (unsigned long)&imon_default_table}, | |
21677cfc | 444 | /* device specifics unknown */ |
0d8053f2 UE |
445 | { USB_DEVICE(0x15c2, 0x0046), |
446 | .driver_info = (unsigned long)&imon_default_table}, | |
21677cfc JW |
447 | {} |
448 | }; | |
449 | ||
450 | /* USB Device data */ | |
451 | static struct usb_driver imon_driver = { | |
452 | .name = MOD_NAME, | |
453 | .probe = imon_probe, | |
4c62e976 | 454 | .disconnect = imon_disconnect, |
21677cfc JW |
455 | .suspend = imon_suspend, |
456 | .resume = imon_resume, | |
457 | .id_table = imon_usb_id_table, | |
458 | }; | |
459 | ||
21677cfc JW |
460 | /* Module bookkeeping bits */ |
461 | MODULE_AUTHOR(MOD_AUTHOR); | |
462 | MODULE_DESCRIPTION(MOD_DESC); | |
463 | MODULE_VERSION(MOD_VERSION); | |
464 | MODULE_LICENSE("GPL"); | |
465 | MODULE_DEVICE_TABLE(usb, imon_usb_id_table); | |
466 | ||
467 | static bool debug; | |
468 | module_param(debug, bool, S_IRUGO | S_IWUSR); | |
6aa209e4 | 469 | MODULE_PARM_DESC(debug, "Debug messages: 0=no, 1=yes (default: no)"); |
21677cfc JW |
470 | |
471 | /* lcd, vfd, vga or none? should be auto-detected, but can be overridden... */ | |
472 | static int display_type; | |
473 | module_param(display_type, int, S_IRUGO); | |
25ec587c | 474 | MODULE_PARM_DESC(display_type, "Type of attached display. 0=autodetect, 1=vfd, 2=lcd, 3=vga, 4=none (default: autodetect)"); |
21677cfc | 475 | |
6718e8ad JW |
476 | static int pad_stabilize = 1; |
477 | module_param(pad_stabilize, int, S_IRUGO | S_IWUSR); | |
25ec587c | 478 | MODULE_PARM_DESC(pad_stabilize, "Apply stabilization algorithm to iMON PAD presses in arrow key mode. 0=disable, 1=enable (default)."); |
21677cfc JW |
479 | |
480 | /* | |
481 | * In certain use cases, mouse mode isn't really helpful, and could actually | |
482 | * cause confusion, so allow disabling it when the IR device is open. | |
483 | */ | |
484 | static bool nomouse; | |
485 | module_param(nomouse, bool, S_IRUGO | S_IWUSR); | |
25ec587c | 486 | 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 |
487 | |
488 | /* threshold at which a pad push registers as an arrow key in kbd mode */ | |
489 | static int pad_thresh; | |
490 | module_param(pad_thresh, int, S_IRUGO | S_IWUSR); | |
25ec587c | 491 | MODULE_PARM_DESC(pad_thresh, "Threshold at which a pad push registers as an arrow key in kbd mode (default: 28)"); |
21677cfc JW |
492 | |
493 | ||
494 | static void free_imon_context(struct imon_context *ictx) | |
495 | { | |
496 | struct device *dev = ictx->dev; | |
497 | ||
498 | usb_free_urb(ictx->tx_urb); | |
db264d4c | 499 | WARN_ON(ictx->dev_present_intf0); |
21677cfc | 500 | usb_free_urb(ictx->rx_urb_intf0); |
db264d4c | 501 | WARN_ON(ictx->dev_present_intf1); |
21677cfc | 502 | usb_free_urb(ictx->rx_urb_intf1); |
db264d4c | 503 | kfree_rcu(ictx, rcu); |
21677cfc JW |
504 | |
505 | dev_dbg(dev, "%s: iMON context freed\n", __func__); | |
506 | } | |
507 | ||
255940e6 | 508 | /* |
21677cfc JW |
509 | * Called when the Display device (e.g. /dev/lcd0) |
510 | * is opened by the application. | |
511 | */ | |
512 | static int display_open(struct inode *inode, struct file *file) | |
513 | { | |
514 | struct usb_interface *interface; | |
515 | struct imon_context *ictx = NULL; | |
516 | int subminor; | |
517 | int retval = 0; | |
518 | ||
21677cfc JW |
519 | subminor = iminor(inode); |
520 | interface = usb_find_interface(&imon_driver, subminor); | |
521 | if (!interface) { | |
e2302501 | 522 | pr_err("could not find interface for minor %d\n", subminor); |
21677cfc JW |
523 | retval = -ENODEV; |
524 | goto exit; | |
525 | } | |
21677cfc | 526 | |
db264d4c TH |
527 | rcu_read_lock(); |
528 | ictx = usb_get_intfdata(interface); | |
529 | if (!ictx || ictx->disconnected || !refcount_inc_not_zero(&ictx->users)) { | |
530 | rcu_read_unlock(); | |
e2302501 | 531 | pr_err("no context found for minor %d\n", subminor); |
21677cfc JW |
532 | retval = -ENODEV; |
533 | goto exit; | |
534 | } | |
db264d4c | 535 | rcu_read_unlock(); |
21677cfc JW |
536 | |
537 | mutex_lock(&ictx->lock); | |
538 | ||
539 | if (!ictx->display_supported) { | |
e2302501 | 540 | pr_err("display not supported by device\n"); |
21677cfc JW |
541 | retval = -ENODEV; |
542 | } else if (ictx->display_isopen) { | |
e2302501 | 543 | pr_err("display port is already open\n"); |
21677cfc JW |
544 | retval = -EBUSY; |
545 | } else { | |
f789bf40 | 546 | ictx->display_isopen = true; |
21677cfc JW |
547 | file->private_data = ictx; |
548 | dev_dbg(ictx->dev, "display port opened\n"); | |
549 | } | |
550 | ||
551 | mutex_unlock(&ictx->lock); | |
552 | ||
db264d4c TH |
553 | if (retval && refcount_dec_and_test(&ictx->users)) |
554 | free_imon_context(ictx); | |
555 | ||
21677cfc | 556 | exit: |
21677cfc JW |
557 | return retval; |
558 | } | |
559 | ||
255940e6 | 560 | /* |
21677cfc JW |
561 | * Called when the display device (e.g. /dev/lcd0) |
562 | * is closed by the application. | |
563 | */ | |
564 | static int display_close(struct inode *inode, struct file *file) | |
565 | { | |
db264d4c | 566 | struct imon_context *ictx = file->private_data; |
21677cfc JW |
567 | int retval = 0; |
568 | ||
21677cfc JW |
569 | mutex_lock(&ictx->lock); |
570 | ||
571 | if (!ictx->display_supported) { | |
e2302501 | 572 | pr_err("display not supported by device\n"); |
21677cfc JW |
573 | retval = -ENODEV; |
574 | } else if (!ictx->display_isopen) { | |
e2302501 | 575 | pr_err("display is not open\n"); |
21677cfc JW |
576 | retval = -EIO; |
577 | } else { | |
f789bf40 | 578 | ictx->display_isopen = false; |
21677cfc | 579 | dev_dbg(ictx->dev, "display port closed\n"); |
21677cfc JW |
580 | } |
581 | ||
582 | mutex_unlock(&ictx->lock); | |
db264d4c TH |
583 | if (refcount_dec_and_test(&ictx->users)) |
584 | free_imon_context(ictx); | |
21677cfc JW |
585 | return retval; |
586 | } | |
587 | ||
255940e6 | 588 | /* |
23ef710e JW |
589 | * Sends a packet to the device -- this function must be called with |
590 | * ictx->lock held, or its unlock/lock sequence while waiting for tx | |
591 | * to complete can/will lead to a deadlock. | |
21677cfc JW |
592 | */ |
593 | static int send_packet(struct imon_context *ictx) | |
594 | { | |
595 | unsigned int pipe; | |
596 | unsigned long timeout; | |
597 | int interval = 0; | |
598 | int retval = 0; | |
599 | struct usb_ctrlrequest *control_req = NULL; | |
600 | ||
601 | /* Check if we need to use control or interrupt urb */ | |
602 | if (!ictx->tx_control) { | |
603 | pipe = usb_sndintpipe(ictx->usbdev_intf0, | |
604 | ictx->tx_endpoint->bEndpointAddress); | |
605 | interval = ictx->tx_endpoint->bInterval; | |
606 | ||
607 | usb_fill_int_urb(ictx->tx_urb, ictx->usbdev_intf0, pipe, | |
608 | ictx->usb_tx_buf, | |
609 | sizeof(ictx->usb_tx_buf), | |
610 | usb_tx_callback, ictx, interval); | |
611 | ||
612 | ictx->tx_urb->actual_length = 0; | |
613 | } else { | |
614 | /* fill request into kmalloc'ed space: */ | |
a8c779eb | 615 | control_req = kmalloc(sizeof(*control_req), GFP_KERNEL); |
21677cfc JW |
616 | if (control_req == NULL) |
617 | return -ENOMEM; | |
618 | ||
619 | /* setup packet is '21 09 0200 0001 0008' */ | |
620 | control_req->bRequestType = 0x21; | |
621 | control_req->bRequest = 0x09; | |
622 | control_req->wValue = cpu_to_le16(0x0200); | |
623 | control_req->wIndex = cpu_to_le16(0x0001); | |
624 | control_req->wLength = cpu_to_le16(0x0008); | |
625 | ||
626 | /* control pipe is endpoint 0x00 */ | |
627 | pipe = usb_sndctrlpipe(ictx->usbdev_intf0, 0); | |
628 | ||
629 | /* build the control urb */ | |
630 | usb_fill_control_urb(ictx->tx_urb, ictx->usbdev_intf0, | |
631 | pipe, (unsigned char *)control_req, | |
632 | ictx->usb_tx_buf, | |
633 | sizeof(ictx->usb_tx_buf), | |
634 | usb_tx_callback, ictx); | |
635 | ictx->tx_urb->actual_length = 0; | |
636 | } | |
637 | ||
7c073fff | 638 | reinit_completion(&ictx->tx.finished); |
f789bf40 | 639 | ictx->tx.busy = true; |
21677cfc JW |
640 | smp_rmb(); /* ensure later readers know we're busy */ |
641 | ||
642 | retval = usb_submit_urb(ictx->tx_urb, GFP_KERNEL); | |
643 | if (retval) { | |
f789bf40 | 644 | ictx->tx.busy = false; |
21677cfc | 645 | smp_rmb(); /* ensure later readers know we're not busy */ |
47a09b08 | 646 | pr_err_ratelimited("error submitting urb(%d)\n", retval); |
21677cfc JW |
647 | } else { |
648 | /* Wait for transmission to complete (or abort) */ | |
21677cfc JW |
649 | retval = wait_for_completion_interruptible( |
650 | &ictx->tx.finished); | |
5f3f254f KB |
651 | if (retval) { |
652 | usb_kill_urb(ictx->tx_urb); | |
47a09b08 | 653 | pr_err_ratelimited("task interrupted\n"); |
5f3f254f | 654 | } |
21677cfc | 655 | |
813ceef0 | 656 | ictx->tx.busy = false; |
21677cfc JW |
657 | retval = ictx->tx.status; |
658 | if (retval) | |
47a09b08 | 659 | pr_err_ratelimited("packet tx failed (%d)\n", retval); |
21677cfc JW |
660 | } |
661 | ||
662 | kfree(control_req); | |
663 | ||
664 | /* | |
26ccbec4 | 665 | * Induce a mandatory delay before returning, as otherwise, |
21677cfc JW |
666 | * send_packet can get called so rapidly as to overwhelm the device, |
667 | * particularly on faster systems and/or those with quirky usb. | |
668 | */ | |
26ccbec4 KB |
669 | timeout = msecs_to_jiffies(ictx->send_packet_delay); |
670 | set_current_state(TASK_INTERRUPTIBLE); | |
21677cfc JW |
671 | schedule_timeout(timeout); |
672 | ||
673 | return retval; | |
674 | } | |
675 | ||
255940e6 | 676 | /* |
21677cfc JW |
677 | * Sends an associate packet to the iMON 2.4G. |
678 | * | |
679 | * This might not be such a good idea, since it has an id collision with | |
680 | * some versions of the "IR & VFD" combo. The only way to determine if it | |
681 | * is an RF version is to look at the product description string. (Which | |
682 | * we currently do not fetch). | |
683 | */ | |
684 | static int send_associate_24g(struct imon_context *ictx) | |
685 | { | |
21677cfc JW |
686 | const unsigned char packet[8] = { 0x01, 0x00, 0x00, 0x00, |
687 | 0x00, 0x00, 0x00, 0x20 }; | |
688 | ||
689 | if (!ictx) { | |
e2302501 | 690 | pr_err("no context for device\n"); |
21677cfc JW |
691 | return -ENODEV; |
692 | } | |
693 | ||
694 | if (!ictx->dev_present_intf0) { | |
e2302501 | 695 | pr_err("no iMON device present\n"); |
21677cfc JW |
696 | return -ENODEV; |
697 | } | |
698 | ||
699 | memcpy(ictx->usb_tx_buf, packet, sizeof(packet)); | |
21677cfc | 700 | |
2dfe2c4f | 701 | return send_packet(ictx); |
21677cfc JW |
702 | } |
703 | ||
255940e6 | 704 | /* |
21677cfc JW |
705 | * Sends packets to setup and show clock on iMON display |
706 | * | |
707 | * Arguments: year - last 2 digits of year, month - 1..12, | |
708 | * day - 1..31, dow - day of the week (0-Sun...6-Sat), | |
709 | * hour - 0..23, minute - 0..59, second - 0..59 | |
710 | */ | |
711 | static int send_set_imon_clock(struct imon_context *ictx, | |
712 | unsigned int year, unsigned int month, | |
713 | unsigned int day, unsigned int dow, | |
714 | unsigned int hour, unsigned int minute, | |
715 | unsigned int second) | |
716 | { | |
717 | unsigned char clock_enable_pkt[IMON_CLOCK_ENABLE_PACKETS][8]; | |
718 | int retval = 0; | |
719 | int i; | |
720 | ||
721 | if (!ictx) { | |
e2302501 | 722 | pr_err("no context for device\n"); |
21677cfc JW |
723 | return -ENODEV; |
724 | } | |
725 | ||
726 | switch (ictx->display_type) { | |
727 | case IMON_DISPLAY_TYPE_LCD: | |
728 | clock_enable_pkt[0][0] = 0x80; | |
729 | clock_enable_pkt[0][1] = year; | |
730 | clock_enable_pkt[0][2] = month-1; | |
731 | clock_enable_pkt[0][3] = day; | |
732 | clock_enable_pkt[0][4] = hour; | |
733 | clock_enable_pkt[0][5] = minute; | |
734 | clock_enable_pkt[0][6] = second; | |
735 | ||
736 | clock_enable_pkt[1][0] = 0x80; | |
737 | clock_enable_pkt[1][1] = 0; | |
738 | clock_enable_pkt[1][2] = 0; | |
739 | clock_enable_pkt[1][3] = 0; | |
740 | clock_enable_pkt[1][4] = 0; | |
741 | clock_enable_pkt[1][5] = 0; | |
742 | clock_enable_pkt[1][6] = 0; | |
743 | ||
744 | if (ictx->product == 0xffdc) { | |
745 | clock_enable_pkt[0][7] = 0x50; | |
746 | clock_enable_pkt[1][7] = 0x51; | |
747 | } else { | |
748 | clock_enable_pkt[0][7] = 0x88; | |
749 | clock_enable_pkt[1][7] = 0x8a; | |
750 | } | |
751 | ||
752 | break; | |
753 | ||
754 | case IMON_DISPLAY_TYPE_VFD: | |
755 | clock_enable_pkt[0][0] = year; | |
756 | clock_enable_pkt[0][1] = month-1; | |
757 | clock_enable_pkt[0][2] = day; | |
758 | clock_enable_pkt[0][3] = dow; | |
759 | clock_enable_pkt[0][4] = hour; | |
760 | clock_enable_pkt[0][5] = minute; | |
761 | clock_enable_pkt[0][6] = second; | |
762 | clock_enable_pkt[0][7] = 0x40; | |
763 | ||
764 | clock_enable_pkt[1][0] = 0; | |
765 | clock_enable_pkt[1][1] = 0; | |
766 | clock_enable_pkt[1][2] = 1; | |
767 | clock_enable_pkt[1][3] = 0; | |
768 | clock_enable_pkt[1][4] = 0; | |
769 | clock_enable_pkt[1][5] = 0; | |
770 | clock_enable_pkt[1][6] = 0; | |
771 | clock_enable_pkt[1][7] = 0x42; | |
772 | ||
773 | break; | |
774 | ||
775 | default: | |
776 | return -ENODEV; | |
777 | } | |
778 | ||
779 | for (i = 0; i < IMON_CLOCK_ENABLE_PACKETS; i++) { | |
780 | memcpy(ictx->usb_tx_buf, clock_enable_pkt[i], 8); | |
781 | retval = send_packet(ictx); | |
782 | if (retval) { | |
e2302501 | 783 | pr_err("send_packet failed for packet %d\n", i); |
21677cfc JW |
784 | break; |
785 | } | |
786 | } | |
787 | ||
788 | return retval; | |
789 | } | |
790 | ||
255940e6 | 791 | /* |
21677cfc JW |
792 | * These are the sysfs functions to handle the association on the iMON 2.4G LT. |
793 | */ | |
f1d9f315 | 794 | static ssize_t associate_remote_show(struct device *d, |
21677cfc JW |
795 | struct device_attribute *attr, |
796 | char *buf) | |
797 | { | |
798 | struct imon_context *ictx = dev_get_drvdata(d); | |
799 | ||
800 | if (!ictx) | |
801 | return -ENODEV; | |
802 | ||
803 | mutex_lock(&ictx->lock); | |
804 | if (ictx->rf_isassociating) | |
2396e282 | 805 | strscpy(buf, "associating\n", PAGE_SIZE); |
21677cfc | 806 | else |
2396e282 | 807 | strscpy(buf, "closed\n", PAGE_SIZE); |
21677cfc | 808 | |
276e2ee0 | 809 | dev_info(d, "Visit https://www.lirc.org/html/imon-24g.html for instructions on how to associate your iMON 2.4G DT/LT remote\n"); |
21677cfc JW |
810 | mutex_unlock(&ictx->lock); |
811 | return strlen(buf); | |
812 | } | |
813 | ||
f1d9f315 | 814 | static ssize_t associate_remote_store(struct device *d, |
21677cfc JW |
815 | struct device_attribute *attr, |
816 | const char *buf, size_t count) | |
817 | { | |
818 | struct imon_context *ictx; | |
819 | ||
820 | ictx = dev_get_drvdata(d); | |
821 | ||
822 | if (!ictx) | |
823 | return -ENODEV; | |
824 | ||
825 | mutex_lock(&ictx->lock); | |
f789bf40 | 826 | ictx->rf_isassociating = true; |
21677cfc JW |
827 | send_associate_24g(ictx); |
828 | mutex_unlock(&ictx->lock); | |
829 | ||
830 | return count; | |
831 | } | |
832 | ||
255940e6 | 833 | /* |
21677cfc JW |
834 | * sysfs functions to control internal imon clock |
835 | */ | |
f1d9f315 | 836 | static ssize_t imon_clock_show(struct device *d, |
21677cfc JW |
837 | struct device_attribute *attr, char *buf) |
838 | { | |
839 | struct imon_context *ictx = dev_get_drvdata(d); | |
840 | size_t len; | |
841 | ||
842 | if (!ictx) | |
843 | return -ENODEV; | |
844 | ||
845 | mutex_lock(&ictx->lock); | |
846 | ||
847 | if (!ictx->display_supported) { | |
cc4cce95 | 848 | len = sysfs_emit(buf, "Not supported."); |
21677cfc | 849 | } else { |
cc4cce95 LZ |
850 | len = sysfs_emit(buf, |
851 | "To set the clock on your iMON display:\n" | |
852 | "# date \"+%%y %%m %%d %%w %%H %%M %%S\" > imon_clock\n" | |
853 | "%s", ictx->display_isopen ? | |
854 | "\nNOTE: imon device must be closed\n" : ""); | |
21677cfc JW |
855 | } |
856 | ||
857 | mutex_unlock(&ictx->lock); | |
858 | ||
859 | return len; | |
860 | } | |
861 | ||
f1d9f315 | 862 | static ssize_t imon_clock_store(struct device *d, |
21677cfc JW |
863 | struct device_attribute *attr, |
864 | const char *buf, size_t count) | |
865 | { | |
866 | struct imon_context *ictx = dev_get_drvdata(d); | |
867 | ssize_t retval; | |
868 | unsigned int year, month, day, dow, hour, minute, second; | |
869 | ||
870 | if (!ictx) | |
871 | return -ENODEV; | |
872 | ||
873 | mutex_lock(&ictx->lock); | |
874 | ||
875 | if (!ictx->display_supported) { | |
876 | retval = -ENODEV; | |
877 | goto exit; | |
878 | } else if (ictx->display_isopen) { | |
879 | retval = -EBUSY; | |
880 | goto exit; | |
881 | } | |
882 | ||
883 | if (sscanf(buf, "%u %u %u %u %u %u %u", &year, &month, &day, &dow, | |
884 | &hour, &minute, &second) != 7) { | |
885 | retval = -EINVAL; | |
886 | goto exit; | |
887 | } | |
888 | ||
889 | if ((month < 1 || month > 12) || | |
890 | (day < 1 || day > 31) || (dow > 6) || | |
891 | (hour > 23) || (minute > 59) || (second > 59)) { | |
892 | retval = -EINVAL; | |
893 | goto exit; | |
894 | } | |
895 | ||
896 | retval = send_set_imon_clock(ictx, year, month, day, dow, | |
897 | hour, minute, second); | |
898 | if (retval) | |
899 | goto exit; | |
900 | ||
901 | retval = count; | |
902 | exit: | |
903 | mutex_unlock(&ictx->lock); | |
904 | ||
905 | return retval; | |
906 | } | |
907 | ||
908 | ||
f1d9f315 ZL |
909 | static DEVICE_ATTR_RW(imon_clock); |
910 | static DEVICE_ATTR_RW(associate_remote); | |
21677cfc JW |
911 | |
912 | static struct attribute *imon_display_sysfs_entries[] = { | |
913 | &dev_attr_imon_clock.attr, | |
914 | NULL | |
915 | }; | |
916 | ||
d9a77b98 | 917 | static const struct attribute_group imon_display_attr_group = { |
21677cfc JW |
918 | .attrs = imon_display_sysfs_entries |
919 | }; | |
920 | ||
921 | static struct attribute *imon_rf_sysfs_entries[] = { | |
922 | &dev_attr_associate_remote.attr, | |
923 | NULL | |
924 | }; | |
925 | ||
d9a77b98 | 926 | static const struct attribute_group imon_rf_attr_group = { |
21677cfc JW |
927 | .attrs = imon_rf_sysfs_entries |
928 | }; | |
929 | ||
255940e6 | 930 | /* |
21677cfc JW |
931 | * Writes data to the VFD. The iMON VFD is 2x16 characters |
932 | * and requires data in 5 consecutive USB interrupt packets, | |
933 | * each packet but the last carrying 7 bytes. | |
934 | * | |
935 | * I don't know if the VFD board supports features such as | |
936 | * scrolling, clearing rows, blanking, etc. so at | |
937 | * the caller must provide a full screen of data. If fewer | |
938 | * than 32 bytes are provided spaces will be appended to | |
939 | * generate a full screen. | |
940 | */ | |
d6740d86 | 941 | static ssize_t vfd_write(struct file *file, const char __user *buf, |
21677cfc JW |
942 | size_t n_bytes, loff_t *pos) |
943 | { | |
944 | int i; | |
945 | int offset; | |
946 | int seq; | |
947 | int retval = 0; | |
db264d4c | 948 | struct imon_context *ictx = file->private_data; |
c25895c7 | 949 | static const unsigned char vfd_packet6[] = { |
21677cfc JW |
950 | 0x01, 0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF }; |
951 | ||
db264d4c | 952 | if (ictx->disconnected) |
21677cfc | 953 | return -ENODEV; |
21677cfc | 954 | |
813ceef0 GM |
955 | if (mutex_lock_interruptible(&ictx->lock)) |
956 | return -ERESTARTSYS; | |
21677cfc JW |
957 | |
958 | if (!ictx->dev_present_intf0) { | |
47a09b08 | 959 | pr_err_ratelimited("no iMON device present\n"); |
21677cfc JW |
960 | retval = -ENODEV; |
961 | goto exit; | |
962 | } | |
963 | ||
964 | if (n_bytes <= 0 || n_bytes > 32) { | |
47a09b08 | 965 | pr_err_ratelimited("invalid payload size\n"); |
21677cfc JW |
966 | retval = -EINVAL; |
967 | goto exit; | |
968 | } | |
969 | ||
970 | if (copy_from_user(ictx->tx.data_buf, buf, n_bytes)) { | |
971 | retval = -EFAULT; | |
972 | goto exit; | |
973 | } | |
974 | ||
975 | /* Pad with spaces */ | |
976 | for (i = n_bytes; i < 32; ++i) | |
977 | ictx->tx.data_buf[i] = ' '; | |
978 | ||
979 | for (i = 32; i < 35; ++i) | |
980 | ictx->tx.data_buf[i] = 0xFF; | |
981 | ||
982 | offset = 0; | |
983 | seq = 0; | |
984 | ||
985 | do { | |
986 | memcpy(ictx->usb_tx_buf, ictx->tx.data_buf + offset, 7); | |
987 | ictx->usb_tx_buf[7] = (unsigned char) seq; | |
988 | ||
989 | retval = send_packet(ictx); | |
990 | if (retval) { | |
47a09b08 | 991 | pr_err_ratelimited("send packet #%d failed\n", seq / 2); |
21677cfc JW |
992 | goto exit; |
993 | } else { | |
994 | seq += 2; | |
995 | offset += 7; | |
996 | } | |
997 | ||
998 | } while (offset < 35); | |
999 | ||
1000 | /* Send packet #6 */ | |
1001 | memcpy(ictx->usb_tx_buf, &vfd_packet6, sizeof(vfd_packet6)); | |
1002 | ictx->usb_tx_buf[7] = (unsigned char) seq; | |
1003 | retval = send_packet(ictx); | |
1004 | if (retval) | |
47a09b08 | 1005 | pr_err_ratelimited("send packet #%d failed\n", seq / 2); |
21677cfc JW |
1006 | |
1007 | exit: | |
1008 | mutex_unlock(&ictx->lock); | |
1009 | ||
1010 | return (!retval) ? n_bytes : retval; | |
1011 | } | |
1012 | ||
255940e6 | 1013 | /* |
21677cfc JW |
1014 | * Writes data to the LCD. The iMON OEM LCD screen expects 8-byte |
1015 | * packets. We accept data as 16 hexadecimal digits, followed by a | |
1016 | * newline (to make it easy to drive the device from a command-line | |
1017 | * -- even though the actual binary data is a bit complicated). | |
1018 | * | |
1019 | * The device itself is not a "traditional" text-mode display. It's | |
1020 | * actually a 16x96 pixel bitmap display. That means if you want to | |
1021 | * display text, you've got to have your own "font" and translate the | |
1022 | * text into bitmaps for display. This is really flexible (you can | |
1023 | * display whatever diacritics you need, and so on), but it's also | |
1024 | * a lot more complicated than most LCDs... | |
1025 | */ | |
d6740d86 | 1026 | static ssize_t lcd_write(struct file *file, const char __user *buf, |
21677cfc JW |
1027 | size_t n_bytes, loff_t *pos) |
1028 | { | |
1029 | int retval = 0; | |
db264d4c | 1030 | struct imon_context *ictx = file->private_data; |
21677cfc | 1031 | |
db264d4c | 1032 | if (ictx->disconnected) |
21677cfc | 1033 | return -ENODEV; |
21677cfc JW |
1034 | |
1035 | mutex_lock(&ictx->lock); | |
1036 | ||
1037 | if (!ictx->display_supported) { | |
47a09b08 | 1038 | pr_err_ratelimited("no iMON display present\n"); |
21677cfc JW |
1039 | retval = -ENODEV; |
1040 | goto exit; | |
1041 | } | |
1042 | ||
1043 | if (n_bytes != 8) { | |
47a09b08 JW |
1044 | pr_err_ratelimited("invalid payload size: %d (expected 8)\n", |
1045 | (int)n_bytes); | |
21677cfc JW |
1046 | retval = -EINVAL; |
1047 | goto exit; | |
1048 | } | |
1049 | ||
1050 | if (copy_from_user(ictx->usb_tx_buf, buf, 8)) { | |
1051 | retval = -EFAULT; | |
1052 | goto exit; | |
1053 | } | |
1054 | ||
1055 | retval = send_packet(ictx); | |
1056 | if (retval) { | |
47a09b08 | 1057 | pr_err_ratelimited("send packet failed!\n"); |
21677cfc JW |
1058 | goto exit; |
1059 | } else { | |
1060 | dev_dbg(ictx->dev, "%s: write %d bytes to LCD\n", | |
1061 | __func__, (int) n_bytes); | |
1062 | } | |
1063 | exit: | |
1064 | mutex_unlock(&ictx->lock); | |
1065 | return (!retval) ? n_bytes : retval; | |
1066 | } | |
1067 | ||
255940e6 | 1068 | /* |
21677cfc JW |
1069 | * Callback function for USB core API: transmit data |
1070 | */ | |
1071 | static void usb_tx_callback(struct urb *urb) | |
1072 | { | |
1073 | struct imon_context *ictx; | |
1074 | ||
1075 | if (!urb) | |
1076 | return; | |
1077 | ictx = (struct imon_context *)urb->context; | |
1078 | if (!ictx) | |
1079 | return; | |
1080 | ||
1081 | ictx->tx.status = urb->status; | |
1082 | ||
1083 | /* notify waiters that write has finished */ | |
f789bf40 | 1084 | ictx->tx.busy = false; |
21677cfc JW |
1085 | smp_rmb(); /* ensure later readers know we're not busy */ |
1086 | complete(&ictx->tx.finished); | |
1087 | } | |
1088 | ||
255940e6 | 1089 | /* |
21677cfc JW |
1090 | * report touchscreen input |
1091 | */ | |
b17ec78a | 1092 | static void imon_touch_display_timeout(struct timer_list *t) |
21677cfc | 1093 | { |
b17ec78a | 1094 | struct imon_context *ictx = from_timer(ictx, t, ttimer); |
21677cfc | 1095 | |
f03900d6 | 1096 | if (ictx->display_type != IMON_DISPLAY_TYPE_VGA) |
21677cfc JW |
1097 | return; |
1098 | ||
1099 | input_report_abs(ictx->touch, ABS_X, ictx->touch_x); | |
1100 | input_report_abs(ictx->touch, ABS_Y, ictx->touch_y); | |
1101 | input_report_key(ictx->touch, BTN_TOUCH, 0x00); | |
1102 | input_sync(ictx->touch); | |
1103 | } | |
1104 | ||
255940e6 | 1105 | /* |
21677cfc JW |
1106 | * iMON IR receivers support two different signal sets -- those used by |
1107 | * the iMON remotes, and those used by the Windows MCE remotes (which is | |
1108 | * really just RC-6), but only one or the other at a time, as the signals | |
1109 | * are decoded onboard the receiver. | |
23ef710e JW |
1110 | * |
1111 | * This function gets called two different ways, one way is from | |
1112 | * rc_register_device, for initial protocol selection/setup, and the other is | |
1113 | * via a userspace-initiated protocol change request, either by direct sysfs | |
1114 | * prodding or by something like ir-keytable. In the rc_register_device case, | |
1115 | * the imon context lock is already held, but when initiated from userspace, | |
1116 | * it is not, so we must acquire it prior to calling send_packet, which | |
1117 | * requires that the lock is held. | |
21677cfc | 1118 | */ |
6d741bfe | 1119 | static int imon_ir_change_protocol(struct rc_dev *rc, u64 *rc_proto) |
21677cfc JW |
1120 | { |
1121 | int retval; | |
d8b4b582 | 1122 | struct imon_context *ictx = rc->priv; |
21677cfc | 1123 | struct device *dev = ictx->dev; |
23ef710e | 1124 | bool unlock = false; |
21677cfc JW |
1125 | unsigned char ir_proto_packet[] = { |
1126 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x86 }; | |
1127 | ||
6d741bfe | 1128 | if (*rc_proto && !(*rc_proto & rc->allowed_protocols)) |
25ec587c | 1129 | dev_warn(dev, "Looks like you're trying to use an IR protocol this device does not support\n"); |
21677cfc | 1130 | |
6d741bfe | 1131 | if (*rc_proto & RC_PROTO_BIT_RC6_MCE) { |
21677cfc JW |
1132 | dev_dbg(dev, "Configuring IR receiver for MCE protocol\n"); |
1133 | ir_proto_packet[0] = 0x01; | |
6d741bfe | 1134 | *rc_proto = RC_PROTO_BIT_RC6_MCE; |
2525fdcb | 1135 | } else if (*rc_proto & RC_PROTO_BIT_IMON) { |
666a9ed8 | 1136 | dev_dbg(dev, "Configuring IR receiver for iMON protocol\n"); |
76f1ef42 | 1137 | if (!pad_stabilize) |
666a9ed8 | 1138 | dev_dbg(dev, "PAD stabilize functionality disabled\n"); |
21677cfc | 1139 | /* ir_proto_packet[0] = 0x00; // already the default */ |
2525fdcb | 1140 | *rc_proto = RC_PROTO_BIT_IMON; |
c003ab1b | 1141 | } else { |
25ec587c | 1142 | dev_warn(dev, "Unsupported IR protocol specified, overriding to iMON IR protocol\n"); |
76f1ef42 | 1143 | if (!pad_stabilize) |
666a9ed8 | 1144 | dev_dbg(dev, "PAD stabilize functionality disabled\n"); |
6718e8ad | 1145 | /* ir_proto_packet[0] = 0x00; // already the default */ |
2525fdcb | 1146 | *rc_proto = RC_PROTO_BIT_IMON; |
21677cfc JW |
1147 | } |
1148 | ||
1149 | memcpy(ictx->usb_tx_buf, &ir_proto_packet, sizeof(ir_proto_packet)); | |
1150 | ||
24147897 | 1151 | unlock = mutex_trylock(&ictx->lock); |
23ef710e | 1152 | |
21677cfc | 1153 | retval = send_packet(ictx); |
6718e8ad JW |
1154 | if (retval) |
1155 | goto out; | |
1156 | ||
6d741bfe | 1157 | ictx->rc_proto = *rc_proto; |
76f1ef42 | 1158 | ictx->pad_mouse = false; |
6718e8ad JW |
1159 | |
1160 | out: | |
23ef710e JW |
1161 | if (unlock) |
1162 | mutex_unlock(&ictx->lock); | |
1163 | ||
6718e8ad | 1164 | return retval; |
21677cfc JW |
1165 | } |
1166 | ||
255940e6 | 1167 | /* |
21677cfc JW |
1168 | * The directional pad behaves a bit differently, depending on whether this is |
1169 | * one of the older ffdc devices or a newer device. Newer devices appear to | |
1170 | * have a higher resolution matrix for more precise mouse movement, but it | |
1171 | * makes things overly sensitive in keyboard mode, so we do some interesting | |
1172 | * contortions to make it less touchy. Older devices run through the same | |
1173 | * routine with shorter timeout and a smaller threshold. | |
1174 | */ | |
1175 | static int stabilize(int a, int b, u16 timeout, u16 threshold) | |
1176 | { | |
1edba648 CZ |
1177 | ktime_t ct; |
1178 | static ktime_t prev_time; | |
1179 | static ktime_t hit_time; | |
21677cfc JW |
1180 | static int x, y, prev_result, hits; |
1181 | int result = 0; | |
1edba648 | 1182 | long msec, msec_hit; |
21677cfc | 1183 | |
1edba648 CZ |
1184 | ct = ktime_get(); |
1185 | msec = ktime_ms_delta(ct, prev_time); | |
1186 | msec_hit = ktime_ms_delta(ct, hit_time); | |
21677cfc JW |
1187 | |
1188 | if (msec > 100) { | |
1189 | x = 0; | |
1190 | y = 0; | |
1191 | hits = 0; | |
1192 | } | |
1193 | ||
1194 | x += a; | |
1195 | y += b; | |
1196 | ||
1197 | prev_time = ct; | |
1198 | ||
1199 | if (abs(x) > threshold || abs(y) > threshold) { | |
1200 | if (abs(y) > abs(x)) | |
1201 | result = (y > 0) ? 0x7F : 0x80; | |
1202 | else | |
1203 | result = (x > 0) ? 0x7F00 : 0x8000; | |
1204 | ||
1205 | x = 0; | |
1206 | y = 0; | |
1207 | ||
1208 | if (result == prev_result) { | |
1209 | hits++; | |
1210 | ||
1211 | if (hits > 3) { | |
1212 | switch (result) { | |
1213 | case 0x7F: | |
1214 | y = 17 * threshold / 30; | |
1215 | break; | |
1216 | case 0x80: | |
1217 | y -= 17 * threshold / 30; | |
1218 | break; | |
1219 | case 0x7F00: | |
1220 | x = 17 * threshold / 30; | |
1221 | break; | |
1222 | case 0x8000: | |
1223 | x -= 17 * threshold / 30; | |
1224 | break; | |
1225 | } | |
1226 | } | |
1227 | ||
1228 | if (hits == 2 && msec_hit < timeout) { | |
1229 | result = 0; | |
1230 | hits = 1; | |
1231 | } | |
1232 | } else { | |
1233 | prev_result = result; | |
1234 | hits = 1; | |
1235 | hit_time = ct; | |
1236 | } | |
1237 | } | |
1238 | ||
1239 | return result; | |
1240 | } | |
1241 | ||
eaf2bcc9 | 1242 | static u32 imon_remote_key_lookup(struct imon_context *ictx, u32 scancode) |
21677cfc | 1243 | { |
21677cfc JW |
1244 | u32 keycode; |
1245 | u32 release; | |
1246 | bool is_release_code = false; | |
1247 | ||
1248 | /* Look for the initial press of a button */ | |
ca86674b | 1249 | keycode = rc_g_keycode_from_table(ictx->rdev, scancode); |
eaf2bcc9 DH |
1250 | ictx->rc_toggle = 0x0; |
1251 | ictx->rc_scancode = scancode; | |
21677cfc JW |
1252 | |
1253 | /* Look for the release of a button */ | |
1254 | if (keycode == KEY_RESERVED) { | |
1255 | release = scancode & ~0x4000; | |
ca86674b | 1256 | keycode = rc_g_keycode_from_table(ictx->rdev, release); |
21677cfc JW |
1257 | if (keycode != KEY_RESERVED) |
1258 | is_release_code = true; | |
1259 | } | |
1260 | ||
1261 | ictx->release_code = is_release_code; | |
1262 | ||
1263 | return keycode; | |
1264 | } | |
1265 | ||
eaf2bcc9 | 1266 | static u32 imon_mce_key_lookup(struct imon_context *ictx, u32 scancode) |
21677cfc | 1267 | { |
21677cfc JW |
1268 | u32 keycode; |
1269 | ||
1270 | #define MCE_KEY_MASK 0x7000 | |
1271 | #define MCE_TOGGLE_BIT 0x8000 | |
1272 | ||
1273 | /* | |
1274 | * On some receivers, mce keys decode to 0x8000f04xx and 0x8000f84xx | |
1275 | * (the toggle bit flipping between alternating key presses), while | |
1276 | * on other receivers, we see 0x8000f74xx and 0x8000ff4xx. To keep | |
1277 | * the table trim, we always or in the bits to look up 0x8000ff4xx, | |
1278 | * but we can't or them into all codes, as some keys are decoded in | |
1279 | * a different way w/o the same use of the toggle bit... | |
1280 | */ | |
eaf2bcc9 | 1281 | if (scancode & 0x80000000) |
21677cfc JW |
1282 | scancode = scancode | MCE_KEY_MASK | MCE_TOGGLE_BIT; |
1283 | ||
eaf2bcc9 | 1284 | ictx->rc_scancode = scancode; |
ca86674b | 1285 | keycode = rc_g_keycode_from_table(ictx->rdev, scancode); |
eaf2bcc9 DH |
1286 | |
1287 | /* not used in mce mode, but make sure we know its false */ | |
1288 | ictx->release_code = false; | |
21677cfc JW |
1289 | |
1290 | return keycode; | |
1291 | } | |
1292 | ||
0d8053f2 | 1293 | static u32 imon_panel_key_lookup(struct imon_context *ictx, u64 code) |
21677cfc | 1294 | { |
cf330691 | 1295 | const struct imon_panel_key_table *key_table; |
083e4721 | 1296 | u32 keycode = KEY_RESERVED; |
cf330691 FG |
1297 | int i; |
1298 | ||
1299 | key_table = ictx->dev_descr->key_table; | |
21677cfc | 1300 | |
0d8053f2 UE |
1301 | for (i = 0; key_table[i].hw_code != 0; i++) { |
1302 | if (key_table[i].hw_code == (code | 0xffee)) { | |
1303 | keycode = key_table[i].keycode; | |
21677cfc | 1304 | break; |
083e4721 JW |
1305 | } |
1306 | } | |
0d8053f2 | 1307 | ictx->release_code = false; |
21677cfc JW |
1308 | return keycode; |
1309 | } | |
1310 | ||
1311 | static bool imon_mouse_event(struct imon_context *ictx, | |
1312 | unsigned char *buf, int len) | |
1313 | { | |
24dec5da | 1314 | signed char rel_x = 0x00, rel_y = 0x00; |
21677cfc | 1315 | u8 right_shift = 1; |
f789bf40 | 1316 | bool mouse_input = true; |
21677cfc | 1317 | int dir = 0; |
693508df JW |
1318 | unsigned long flags; |
1319 | ||
1320 | spin_lock_irqsave(&ictx->kc_lock, flags); | |
21677cfc JW |
1321 | |
1322 | /* newer iMON device PAD or mouse button */ | |
1323 | if (ictx->product != 0xffdc && (buf[0] & 0x01) && len == 5) { | |
1324 | rel_x = buf[2]; | |
1325 | rel_y = buf[3]; | |
1326 | right_shift = 1; | |
1327 | /* 0xffdc iMON PAD or mouse button input */ | |
1328 | } else if (ictx->product == 0xffdc && (buf[0] & 0x40) && | |
1329 | !((buf[1] & 0x01) || ((buf[1] >> 2) & 0x01))) { | |
1330 | rel_x = (buf[1] & 0x08) | (buf[1] & 0x10) >> 2 | | |
1331 | (buf[1] & 0x20) >> 4 | (buf[1] & 0x40) >> 6; | |
1332 | if (buf[0] & 0x02) | |
1333 | rel_x |= ~0x0f; | |
1334 | rel_x = rel_x + rel_x / 2; | |
1335 | rel_y = (buf[2] & 0x08) | (buf[2] & 0x10) >> 2 | | |
1336 | (buf[2] & 0x20) >> 4 | (buf[2] & 0x40) >> 6; | |
1337 | if (buf[0] & 0x01) | |
1338 | rel_y |= ~0x0f; | |
1339 | rel_y = rel_y + rel_y / 2; | |
1340 | right_shift = 2; | |
1341 | /* some ffdc devices decode mouse buttons differently... */ | |
1342 | } else if (ictx->product == 0xffdc && (buf[0] == 0x68)) { | |
1343 | right_shift = 2; | |
1344 | /* ch+/- buttons, which we use for an emulated scroll wheel */ | |
1345 | } else if (ictx->kc == KEY_CHANNELUP && (buf[2] & 0x40) != 0x40) { | |
1346 | dir = 1; | |
1347 | } else if (ictx->kc == KEY_CHANNELDOWN && (buf[2] & 0x40) != 0x40) { | |
1348 | dir = -1; | |
1349 | } else | |
f789bf40 | 1350 | mouse_input = false; |
21677cfc | 1351 | |
693508df JW |
1352 | spin_unlock_irqrestore(&ictx->kc_lock, flags); |
1353 | ||
21677cfc JW |
1354 | if (mouse_input) { |
1355 | dev_dbg(ictx->dev, "sending mouse data via input subsystem\n"); | |
1356 | ||
1357 | if (dir) { | |
1358 | input_report_rel(ictx->idev, REL_WHEEL, dir); | |
1359 | } else if (rel_x || rel_y) { | |
1360 | input_report_rel(ictx->idev, REL_X, rel_x); | |
1361 | input_report_rel(ictx->idev, REL_Y, rel_y); | |
1362 | } else { | |
1363 | input_report_key(ictx->idev, BTN_LEFT, buf[1] & 0x1); | |
1364 | input_report_key(ictx->idev, BTN_RIGHT, | |
1365 | buf[1] >> right_shift & 0x1); | |
1366 | } | |
1367 | input_sync(ictx->idev); | |
693508df | 1368 | spin_lock_irqsave(&ictx->kc_lock, flags); |
21677cfc | 1369 | ictx->last_keycode = ictx->kc; |
693508df | 1370 | spin_unlock_irqrestore(&ictx->kc_lock, flags); |
21677cfc JW |
1371 | } |
1372 | ||
1373 | return mouse_input; | |
1374 | } | |
1375 | ||
1376 | static void imon_touch_event(struct imon_context *ictx, unsigned char *buf) | |
1377 | { | |
1378 | mod_timer(&ictx->ttimer, jiffies + TOUCH_TIMEOUT); | |
1379 | ictx->touch_x = (buf[0] << 4) | (buf[1] >> 4); | |
1380 | ictx->touch_y = 0xfff - ((buf[2] << 4) | (buf[1] & 0xf)); | |
1381 | input_report_abs(ictx->touch, ABS_X, ictx->touch_x); | |
1382 | input_report_abs(ictx->touch, ABS_Y, ictx->touch_y); | |
1383 | input_report_key(ictx->touch, BTN_TOUCH, 0x01); | |
1384 | input_sync(ictx->touch); | |
1385 | } | |
1386 | ||
1387 | static void imon_pad_to_keys(struct imon_context *ictx, unsigned char *buf) | |
1388 | { | |
1389 | int dir = 0; | |
24dec5da | 1390 | signed char rel_x = 0x00, rel_y = 0x00; |
21677cfc | 1391 | u16 timeout, threshold; |
eaf2bcc9 | 1392 | u32 scancode = KEY_RESERVED; |
693508df | 1393 | unsigned long flags; |
21677cfc JW |
1394 | |
1395 | /* | |
1396 | * The imon directional pad functions more like a touchpad. Bytes 3 & 4 | |
1397 | * contain a position coordinate (x,y), with each component ranging | |
1398 | * from -14 to 14. We want to down-sample this to only 4 discrete values | |
1399 | * for up/down/left/right arrow keys. Also, when you get too close to | |
25985edc | 1400 | * diagonals, it has a tendency to jump back and forth, so lets try to |
21677cfc JW |
1401 | * ignore when they get too close. |
1402 | */ | |
1403 | if (ictx->product != 0xffdc) { | |
1404 | /* first, pad to 8 bytes so it conforms with everything else */ | |
1405 | buf[5] = buf[6] = buf[7] = 0; | |
1406 | timeout = 500; /* in msecs */ | |
1407 | /* (2*threshold) x (2*threshold) square */ | |
1408 | threshold = pad_thresh ? pad_thresh : 28; | |
1409 | rel_x = buf[2]; | |
1410 | rel_y = buf[3]; | |
1411 | ||
2525fdcb | 1412 | if (ictx->rc_proto == RC_PROTO_BIT_IMON && pad_stabilize) { |
21677cfc JW |
1413 | if ((buf[1] == 0) && ((rel_x != 0) || (rel_y != 0))) { |
1414 | dir = stabilize((int)rel_x, (int)rel_y, | |
1415 | timeout, threshold); | |
1416 | if (!dir) { | |
693508df JW |
1417 | spin_lock_irqsave(&ictx->kc_lock, |
1418 | flags); | |
21677cfc | 1419 | ictx->kc = KEY_UNKNOWN; |
693508df JW |
1420 | spin_unlock_irqrestore(&ictx->kc_lock, |
1421 | flags); | |
21677cfc JW |
1422 | return; |
1423 | } | |
1424 | buf[2] = dir & 0xFF; | |
1425 | buf[3] = (dir >> 8) & 0xFF; | |
d778d258 | 1426 | scancode = be32_to_cpu(*((__be32 *)buf)); |
21677cfc JW |
1427 | } |
1428 | } else { | |
eaf2bcc9 DH |
1429 | /* |
1430 | * Hack alert: instead of using keycodes, we have | |
1431 | * to use hard-coded scancodes here... | |
1432 | */ | |
21677cfc JW |
1433 | if (abs(rel_y) > abs(rel_x)) { |
1434 | buf[2] = (rel_y > 0) ? 0x7F : 0x80; | |
1435 | buf[3] = 0; | |
eaf2bcc9 DH |
1436 | if (rel_y > 0) |
1437 | scancode = 0x01007f00; /* KEY_DOWN */ | |
1438 | else | |
1439 | scancode = 0x01008000; /* KEY_UP */ | |
21677cfc JW |
1440 | } else { |
1441 | buf[2] = 0; | |
1442 | buf[3] = (rel_x > 0) ? 0x7F : 0x80; | |
eaf2bcc9 DH |
1443 | if (rel_x > 0) |
1444 | scancode = 0x0100007f; /* KEY_RIGHT */ | |
1445 | else | |
1446 | scancode = 0x01000080; /* KEY_LEFT */ | |
21677cfc JW |
1447 | } |
1448 | } | |
1449 | ||
1450 | /* | |
1451 | * Handle on-board decoded pad events for e.g. older VFD/iMON-Pad | |
1452 | * device (15c2:ffdc). The remote generates various codes from | |
1453 | * 0x68nnnnB7 to 0x6AnnnnB7, the left mouse button generates | |
1454 | * 0x688301b7 and the right one 0x688481b7. All other keys generate | |
1455 | * 0x2nnnnnnn. Position coordinate is encoded in buf[1] and buf[2] with | |
39c1cb2b | 1456 | * reversed endianness. Extract direction from buffer, rotate endianness, |
21677cfc JW |
1457 | * adjust sign and feed the values into stabilize(). The resulting codes |
1458 | * will be 0x01008000, 0x01007F00, which match the newer devices. | |
1459 | */ | |
1460 | } else { | |
1461 | timeout = 10; /* in msecs */ | |
1462 | /* (2*threshold) x (2*threshold) square */ | |
1463 | threshold = pad_thresh ? pad_thresh : 15; | |
1464 | ||
1465 | /* buf[1] is x */ | |
1466 | rel_x = (buf[1] & 0x08) | (buf[1] & 0x10) >> 2 | | |
1467 | (buf[1] & 0x20) >> 4 | (buf[1] & 0x40) >> 6; | |
1468 | if (buf[0] & 0x02) | |
1469 | rel_x |= ~0x10+1; | |
1470 | /* buf[2] is y */ | |
1471 | rel_y = (buf[2] & 0x08) | (buf[2] & 0x10) >> 2 | | |
1472 | (buf[2] & 0x20) >> 4 | (buf[2] & 0x40) >> 6; | |
1473 | if (buf[0] & 0x01) | |
1474 | rel_y |= ~0x10+1; | |
1475 | ||
1476 | buf[0] = 0x01; | |
1477 | buf[1] = buf[4] = buf[5] = buf[6] = buf[7] = 0; | |
1478 | ||
2525fdcb | 1479 | if (ictx->rc_proto == RC_PROTO_BIT_IMON && pad_stabilize) { |
21677cfc JW |
1480 | dir = stabilize((int)rel_x, (int)rel_y, |
1481 | timeout, threshold); | |
1482 | if (!dir) { | |
693508df | 1483 | spin_lock_irqsave(&ictx->kc_lock, flags); |
21677cfc | 1484 | ictx->kc = KEY_UNKNOWN; |
693508df | 1485 | spin_unlock_irqrestore(&ictx->kc_lock, flags); |
21677cfc JW |
1486 | return; |
1487 | } | |
1488 | buf[2] = dir & 0xFF; | |
1489 | buf[3] = (dir >> 8) & 0xFF; | |
d778d258 | 1490 | scancode = be32_to_cpu(*((__be32 *)buf)); |
21677cfc | 1491 | } else { |
eaf2bcc9 DH |
1492 | /* |
1493 | * Hack alert: instead of using keycodes, we have | |
1494 | * to use hard-coded scancodes here... | |
1495 | */ | |
21677cfc JW |
1496 | if (abs(rel_y) > abs(rel_x)) { |
1497 | buf[2] = (rel_y > 0) ? 0x7F : 0x80; | |
1498 | buf[3] = 0; | |
eaf2bcc9 DH |
1499 | if (rel_y > 0) |
1500 | scancode = 0x01007f00; /* KEY_DOWN */ | |
1501 | else | |
1502 | scancode = 0x01008000; /* KEY_UP */ | |
21677cfc JW |
1503 | } else { |
1504 | buf[2] = 0; | |
1505 | buf[3] = (rel_x > 0) ? 0x7F : 0x80; | |
eaf2bcc9 DH |
1506 | if (rel_x > 0) |
1507 | scancode = 0x0100007f; /* KEY_RIGHT */ | |
1508 | else | |
1509 | scancode = 0x01000080; /* KEY_LEFT */ | |
21677cfc JW |
1510 | } |
1511 | } | |
1512 | } | |
eaf2bcc9 | 1513 | |
693508df JW |
1514 | if (scancode) { |
1515 | spin_lock_irqsave(&ictx->kc_lock, flags); | |
eaf2bcc9 | 1516 | ictx->kc = imon_remote_key_lookup(ictx, scancode); |
693508df JW |
1517 | spin_unlock_irqrestore(&ictx->kc_lock, flags); |
1518 | } | |
21677cfc JW |
1519 | } |
1520 | ||
255940e6 | 1521 | /* |
eaf2bcc9 DH |
1522 | * figure out if these is a press or a release. We don't actually |
1523 | * care about repeats, as those will be auto-generated within the IR | |
1524 | * subsystem for repeating scancodes. | |
1525 | */ | |
21677cfc JW |
1526 | static int imon_parse_press_type(struct imon_context *ictx, |
1527 | unsigned char *buf, u8 ktype) | |
1528 | { | |
1529 | int press_type = 0; | |
693508df JW |
1530 | unsigned long flags; |
1531 | ||
1532 | spin_lock_irqsave(&ictx->kc_lock, flags); | |
21677cfc JW |
1533 | |
1534 | /* key release of 0x02XXXXXX key */ | |
1535 | if (ictx->kc == KEY_RESERVED && buf[0] == 0x02 && buf[3] == 0x00) | |
1536 | ictx->kc = ictx->last_keycode; | |
1537 | ||
1538 | /* mouse button release on (some) 0xffdc devices */ | |
1539 | else if (ictx->kc == KEY_RESERVED && buf[0] == 0x68 && buf[1] == 0x82 && | |
1540 | buf[2] == 0x81 && buf[3] == 0xb7) | |
1541 | ictx->kc = ictx->last_keycode; | |
1542 | ||
1543 | /* mouse button release on (some other) 0xffdc devices */ | |
1544 | else if (ictx->kc == KEY_RESERVED && buf[0] == 0x01 && buf[1] == 0x00 && | |
1545 | buf[2] == 0x81 && buf[3] == 0xb7) | |
1546 | ictx->kc = ictx->last_keycode; | |
1547 | ||
eaf2bcc9 | 1548 | /* mce-specific button handling, no keyup events */ |
21677cfc | 1549 | else if (ktype == IMON_KEY_MCE) { |
eaf2bcc9 DH |
1550 | ictx->rc_toggle = buf[2]; |
1551 | press_type = 1; | |
21677cfc JW |
1552 | |
1553 | /* incoherent or irrelevant data */ | |
1554 | } else if (ictx->kc == KEY_RESERVED) | |
1555 | press_type = -EINVAL; | |
1556 | ||
1557 | /* key release of 0xXXXXXXb7 key */ | |
1558 | else if (ictx->release_code) | |
1559 | press_type = 0; | |
1560 | ||
1561 | /* this is a button press */ | |
1562 | else | |
1563 | press_type = 1; | |
1564 | ||
693508df JW |
1565 | spin_unlock_irqrestore(&ictx->kc_lock, flags); |
1566 | ||
21677cfc JW |
1567 | return press_type; |
1568 | } | |
1569 | ||
255940e6 | 1570 | /* |
21677cfc JW |
1571 | * Process the incoming packet |
1572 | */ | |
1b450f21 | 1573 | static void imon_incoming_packet(struct imon_context *ictx, |
21677cfc JW |
1574 | struct urb *urb, int intf) |
1575 | { | |
1576 | int len = urb->actual_length; | |
1577 | unsigned char *buf = urb->transfer_buffer; | |
1578 | struct device *dev = ictx->dev; | |
693508df | 1579 | unsigned long flags; |
21677cfc | 1580 | u32 kc; |
eaf2bcc9 | 1581 | u64 scancode; |
21677cfc | 1582 | int press_type = 0; |
1edba648 CZ |
1583 | ktime_t t; |
1584 | static ktime_t prev_time; | |
eaf2bcc9 | 1585 | u8 ktype; |
21677cfc | 1586 | |
21677cfc | 1587 | /* filter out junk data on the older 0xffdc imon devices */ |
bbe4690f | 1588 | if ((buf[0] == 0xff) && (buf[1] == 0xff) && (buf[2] == 0xff)) |
21677cfc JW |
1589 | return; |
1590 | ||
1591 | /* Figure out what key was pressed */ | |
21677cfc | 1592 | if (len == 8 && buf[7] == 0xee) { |
d778d258 | 1593 | scancode = be64_to_cpu(*((__be64 *)buf)); |
21677cfc | 1594 | ktype = IMON_KEY_PANEL; |
0d8053f2 | 1595 | kc = imon_panel_key_lookup(ictx, scancode); |
6ddc2be5 | 1596 | ictx->release_code = false; |
21677cfc | 1597 | } else { |
d778d258 | 1598 | scancode = be32_to_cpu(*((__be32 *)buf)); |
6d741bfe | 1599 | if (ictx->rc_proto == RC_PROTO_BIT_RC6_MCE) { |
eaf2bcc9 | 1600 | ktype = IMON_KEY_IMON; |
21677cfc JW |
1601 | if (buf[0] == 0x80) |
1602 | ktype = IMON_KEY_MCE; | |
eaf2bcc9 DH |
1603 | kc = imon_mce_key_lookup(ictx, scancode); |
1604 | } else { | |
1605 | ktype = IMON_KEY_IMON; | |
1606 | kc = imon_remote_key_lookup(ictx, scancode); | |
1607 | } | |
21677cfc JW |
1608 | } |
1609 | ||
693508df | 1610 | spin_lock_irqsave(&ictx->kc_lock, flags); |
21677cfc JW |
1611 | /* keyboard/mouse mode toggle button */ |
1612 | if (kc == KEY_KEYBOARD && !ictx->release_code) { | |
1613 | ictx->last_keycode = kc; | |
1614 | if (!nomouse) { | |
bd7e31bb | 1615 | ictx->pad_mouse = !ictx->pad_mouse; |
21677cfc JW |
1616 | dev_dbg(dev, "toggling to %s mode\n", |
1617 | ictx->pad_mouse ? "mouse" : "keyboard"); | |
693508df | 1618 | spin_unlock_irqrestore(&ictx->kc_lock, flags); |
21677cfc JW |
1619 | return; |
1620 | } else { | |
76f1ef42 | 1621 | ictx->pad_mouse = false; |
21677cfc JW |
1622 | dev_dbg(dev, "mouse mode disabled, passing key value\n"); |
1623 | } | |
1624 | } | |
1625 | ||
1626 | ictx->kc = kc; | |
693508df | 1627 | spin_unlock_irqrestore(&ictx->kc_lock, flags); |
21677cfc JW |
1628 | |
1629 | /* send touchscreen events through input subsystem if touchpad data */ | |
f3f5ba42 | 1630 | if (ictx->touch && len == 8 && buf[7] == 0x86) { |
21677cfc | 1631 | imon_touch_event(ictx, buf); |
eaf2bcc9 | 1632 | return; |
21677cfc JW |
1633 | |
1634 | /* look for mouse events with pad in mouse mode */ | |
1635 | } else if (ictx->pad_mouse) { | |
1636 | if (imon_mouse_event(ictx, buf, len)) | |
1637 | return; | |
1638 | } | |
1639 | ||
1640 | /* Now for some special handling to convert pad input to arrow keys */ | |
1641 | if (((len == 5) && (buf[0] == 0x01) && (buf[4] == 0x00)) || | |
1642 | ((len == 8) && (buf[0] & 0x40) && | |
1643 | !(buf[1] & 0x1 || buf[1] >> 2 & 0x1))) { | |
1644 | len = 8; | |
1645 | imon_pad_to_keys(ictx, buf); | |
21677cfc JW |
1646 | } |
1647 | ||
1648 | if (debug) { | |
832d40c0 MCC |
1649 | printk(KERN_INFO "intf%d decoded packet: %*ph\n", |
1650 | intf, len, buf); | |
21677cfc JW |
1651 | } |
1652 | ||
1653 | press_type = imon_parse_press_type(ictx, buf, ktype); | |
1654 | if (press_type < 0) | |
1655 | goto not_input_data; | |
1656 | ||
eaf2bcc9 DH |
1657 | if (ktype != IMON_KEY_PANEL) { |
1658 | if (press_type == 0) | |
ca86674b | 1659 | rc_keyup(ictx->rdev); |
eaf2bcc9 | 1660 | else { |
2525fdcb SY |
1661 | enum rc_proto proto; |
1662 | ||
1663 | if (ictx->rc_proto == RC_PROTO_BIT_RC6_MCE) | |
1664 | proto = RC_PROTO_RC6_MCE; | |
1665 | else if (ictx->rc_proto == RC_PROTO_BIT_IMON) | |
1666 | proto = RC_PROTO_IMON; | |
1667 | else | |
1668 | return; | |
1669 | ||
1670 | rc_keydown(ictx->rdev, proto, ictx->rc_scancode, | |
1671 | ictx->rc_toggle); | |
1672 | ||
693508df | 1673 | spin_lock_irqsave(&ictx->kc_lock, flags); |
eaf2bcc9 | 1674 | ictx->last_keycode = ictx->kc; |
693508df | 1675 | spin_unlock_irqrestore(&ictx->kc_lock, flags); |
eaf2bcc9 DH |
1676 | } |
1677 | return; | |
1678 | } | |
21677cfc | 1679 | |
eaf2bcc9 | 1680 | /* Only panel type events left to process now */ |
693508df JW |
1681 | spin_lock_irqsave(&ictx->kc_lock, flags); |
1682 | ||
1edba648 | 1683 | t = ktime_get(); |
cf330691 FG |
1684 | /* KEY repeats from knob and panel that need to be suppressed */ |
1685 | if (ictx->kc == KEY_MUTE || | |
1686 | ictx->dev_descr->flags & IMON_SUPPRESS_REPEATED_KEYS) { | |
1687 | if (ictx->kc == ictx->last_keycode && | |
1688 | ktime_ms_delta(t, prev_time) < ictx->idev->rep[REP_DELAY]) { | |
693508df | 1689 | spin_unlock_irqrestore(&ictx->kc_lock, flags); |
21677cfc | 1690 | return; |
693508df | 1691 | } |
21677cfc | 1692 | } |
cf330691 | 1693 | |
94215ccd | 1694 | prev_time = t; |
693508df | 1695 | kc = ictx->kc; |
21677cfc | 1696 | |
693508df | 1697 | spin_unlock_irqrestore(&ictx->kc_lock, flags); |
21677cfc | 1698 | |
428cc763 JW |
1699 | input_report_key(ictx->idev, kc, press_type); |
1700 | input_sync(ictx->idev); | |
21677cfc | 1701 | |
eaf2bcc9 | 1702 | /* panel keys don't generate a release */ |
428cc763 JW |
1703 | input_report_key(ictx->idev, kc, 0); |
1704 | input_sync(ictx->idev); | |
21677cfc | 1705 | |
94215ccd | 1706 | spin_lock_irqsave(&ictx->kc_lock, flags); |
693508df | 1707 | ictx->last_keycode = kc; |
94215ccd | 1708 | spin_unlock_irqrestore(&ictx->kc_lock, flags); |
21677cfc JW |
1709 | |
1710 | return; | |
1711 | ||
21677cfc JW |
1712 | not_input_data: |
1713 | if (len != 8) { | |
25ec587c MCC |
1714 | dev_warn(dev, "imon %s: invalid incoming packet size (len = %d, intf%d)\n", |
1715 | __func__, len, intf); | |
21677cfc JW |
1716 | return; |
1717 | } | |
1718 | ||
1719 | /* iMON 2.4G associate frame */ | |
1720 | if (buf[0] == 0x00 && | |
1721 | buf[2] == 0xFF && /* REFID */ | |
1722 | buf[3] == 0xFF && | |
1723 | buf[4] == 0xFF && | |
1724 | buf[5] == 0xFF && /* iMON 2.4G */ | |
1725 | ((buf[6] == 0x4E && buf[7] == 0xDF) || /* LT */ | |
1726 | (buf[6] == 0x5E && buf[7] == 0xDF))) { /* DT */ | |
1727 | dev_warn(dev, "%s: remote associated refid=%02X\n", | |
1728 | __func__, buf[1]); | |
f789bf40 | 1729 | ictx->rf_isassociating = false; |
21677cfc JW |
1730 | } |
1731 | } | |
1732 | ||
255940e6 | 1733 | /* |
21677cfc JW |
1734 | * Callback function for USB core API: receive data |
1735 | */ | |
1736 | static void usb_rx_callback_intf0(struct urb *urb) | |
1737 | { | |
1738 | struct imon_context *ictx; | |
1739 | int intfnum = 0; | |
1740 | ||
1741 | if (!urb) | |
1742 | return; | |
1743 | ||
1744 | ictx = (struct imon_context *)urb->context; | |
8791d63a | 1745 | if (!ictx) |
21677cfc JW |
1746 | return; |
1747 | ||
8791d63a JW |
1748 | /* |
1749 | * if we get a callback before we're done configuring the hardware, we | |
1750 | * can't yet process the data, as there's nowhere to send it, but we | |
1751 | * still need to submit a new rx URB to avoid wedging the hardware | |
1752 | */ | |
1753 | if (!ictx->dev_present_intf0) | |
1754 | goto out; | |
1755 | ||
21677cfc JW |
1756 | switch (urb->status) { |
1757 | case -ENOENT: /* usbcore unlink successful! */ | |
1758 | return; | |
1759 | ||
1760 | case -ESHUTDOWN: /* transport endpoint was shut down */ | |
1761 | break; | |
1762 | ||
1763 | case 0: | |
1b450f21 | 1764 | imon_incoming_packet(ictx, urb, intfnum); |
21677cfc JW |
1765 | break; |
1766 | ||
1767 | default: | |
1768 | dev_warn(ictx->dev, "imon %s: status(%d): ignored\n", | |
1769 | __func__, urb->status); | |
1770 | break; | |
1771 | } | |
1772 | ||
8791d63a | 1773 | out: |
21677cfc JW |
1774 | usb_submit_urb(ictx->rx_urb_intf0, GFP_ATOMIC); |
1775 | } | |
1776 | ||
1777 | static void usb_rx_callback_intf1(struct urb *urb) | |
1778 | { | |
1779 | struct imon_context *ictx; | |
1780 | int intfnum = 1; | |
1781 | ||
1782 | if (!urb) | |
1783 | return; | |
1784 | ||
1785 | ictx = (struct imon_context *)urb->context; | |
8791d63a | 1786 | if (!ictx) |
21677cfc JW |
1787 | return; |
1788 | ||
8791d63a JW |
1789 | /* |
1790 | * if we get a callback before we're done configuring the hardware, we | |
1791 | * can't yet process the data, as there's nowhere to send it, but we | |
1792 | * still need to submit a new rx URB to avoid wedging the hardware | |
1793 | */ | |
1794 | if (!ictx->dev_present_intf1) | |
1795 | goto out; | |
1796 | ||
21677cfc JW |
1797 | switch (urb->status) { |
1798 | case -ENOENT: /* usbcore unlink successful! */ | |
1799 | return; | |
1800 | ||
1801 | case -ESHUTDOWN: /* transport endpoint was shut down */ | |
1802 | break; | |
1803 | ||
1804 | case 0: | |
1b450f21 | 1805 | imon_incoming_packet(ictx, urb, intfnum); |
21677cfc JW |
1806 | break; |
1807 | ||
1808 | default: | |
1809 | dev_warn(ictx->dev, "imon %s: status(%d): ignored\n", | |
1810 | __func__, urb->status); | |
1811 | break; | |
1812 | } | |
1813 | ||
8791d63a | 1814 | out: |
21677cfc JW |
1815 | usb_submit_urb(ictx->rx_urb_intf1, GFP_ATOMIC); |
1816 | } | |
1817 | ||
04292fc0 JW |
1818 | /* |
1819 | * The 0x15c2:0xffdc device ID was used for umpteen different imon | |
1820 | * devices, and all of them constantly spew interrupts, even when there | |
1821 | * is no actual data to report. However, byte 6 of this buffer looks like | |
1822 | * its unique across device variants, so we're trying to key off that to | |
1823 | * figure out which display type (if any) and what IR protocol the device | |
1824 | * actually supports. These devices have their IR protocol hard-coded into | |
1825 | * their firmware, they can't be changed on the fly like the newer hardware. | |
1826 | */ | |
1827 | static void imon_get_ffdc_type(struct imon_context *ictx) | |
1828 | { | |
1829 | u8 ffdc_cfg_byte = ictx->usb_rx_buf[6]; | |
1830 | u8 detected_display_type = IMON_DISPLAY_TYPE_NONE; | |
2525fdcb | 1831 | u64 allowed_protos = RC_PROTO_BIT_IMON; |
04292fc0 JW |
1832 | |
1833 | switch (ffdc_cfg_byte) { | |
1834 | /* iMON Knob, no display, iMON IR + vol knob */ | |
1835 | case 0x21: | |
1836 | dev_info(ictx->dev, "0xffdc iMON Knob, iMON IR"); | |
1837 | ictx->display_supported = false; | |
1838 | break; | |
1839 | /* iMON 2.4G LT (usb stick), no display, iMON RF */ | |
1840 | case 0x4e: | |
1841 | dev_info(ictx->dev, "0xffdc iMON 2.4G LT, iMON RF"); | |
1842 | ictx->display_supported = false; | |
1843 | ictx->rf_device = true; | |
1844 | break; | |
1845 | /* iMON VFD, no IR (does have vol knob tho) */ | |
1846 | case 0x35: | |
1847 | dev_info(ictx->dev, "0xffdc iMON VFD + knob, no IR"); | |
1848 | detected_display_type = IMON_DISPLAY_TYPE_VFD; | |
1849 | break; | |
1850 | /* iMON VFD, iMON IR */ | |
1851 | case 0x24: | |
6d4a36d1 | 1852 | case 0x30: |
04292fc0 JW |
1853 | case 0x85: |
1854 | dev_info(ictx->dev, "0xffdc iMON VFD, iMON IR"); | |
1855 | detected_display_type = IMON_DISPLAY_TYPE_VFD; | |
1856 | break; | |
1857 | /* iMON VFD, MCE IR */ | |
443b3919 | 1858 | case 0x46: |
04292fc0 JW |
1859 | case 0x9e: |
1860 | dev_info(ictx->dev, "0xffdc iMON VFD, MCE IR"); | |
1861 | detected_display_type = IMON_DISPLAY_TYPE_VFD; | |
6d741bfe | 1862 | allowed_protos = RC_PROTO_BIT_RC6_MCE; |
04292fc0 | 1863 | break; |
b20a6e29 DR |
1864 | /* iMON VFD, iMON or MCE IR */ |
1865 | case 0x7e: | |
1866 | dev_info(ictx->dev, "0xffdc iMON VFD, iMON or MCE IR"); | |
1867 | detected_display_type = IMON_DISPLAY_TYPE_VFD; | |
1868 | allowed_protos |= RC_PROTO_BIT_RC6_MCE; | |
1869 | break; | |
04292fc0 JW |
1870 | /* iMON LCD, MCE IR */ |
1871 | case 0x9f: | |
1872 | dev_info(ictx->dev, "0xffdc iMON LCD, MCE IR"); | |
1873 | detected_display_type = IMON_DISPLAY_TYPE_LCD; | |
6d741bfe | 1874 | allowed_protos = RC_PROTO_BIT_RC6_MCE; |
04292fc0 | 1875 | break; |
6a489f76 SY |
1876 | /* no display, iMON IR */ |
1877 | case 0x26: | |
1878 | dev_info(ictx->dev, "0xffdc iMON Inside, iMON IR"); | |
1879 | ictx->display_supported = false; | |
1880 | break; | |
cf330691 FG |
1881 | /* Soundgraph iMON UltraBay */ |
1882 | case 0x98: | |
1883 | dev_info(ictx->dev, "0xffdc iMON UltraBay, LCD + IR"); | |
1884 | detected_display_type = IMON_DISPLAY_TYPE_LCD; | |
1885 | allowed_protos = RC_PROTO_BIT_IMON | RC_PROTO_BIT_RC6_MCE; | |
1886 | ictx->dev_descr = &ultrabay_table; | |
1887 | break; | |
1888 | ||
04292fc0 | 1889 | default: |
25ec587c | 1890 | dev_info(ictx->dev, "Unknown 0xffdc device, defaulting to VFD and iMON IR"); |
04292fc0 | 1891 | detected_display_type = IMON_DISPLAY_TYPE_VFD; |
2525fdcb SY |
1892 | /* |
1893 | * We don't know which one it is, allow user to set the | |
1894 | * RC6 one from userspace if IMON wasn't correct. | |
1895 | */ | |
6d741bfe | 1896 | allowed_protos |= RC_PROTO_BIT_RC6_MCE; |
04292fc0 JW |
1897 | break; |
1898 | } | |
1899 | ||
1900 | printk(KERN_CONT " (id 0x%02x)\n", ffdc_cfg_byte); | |
1901 | ||
1902 | ictx->display_type = detected_display_type; | |
6d741bfe | 1903 | ictx->rc_proto = allowed_protos; |
04292fc0 JW |
1904 | } |
1905 | ||
1906 | static void imon_set_display_type(struct imon_context *ictx) | |
1907 | { | |
1908 | u8 configured_display_type = IMON_DISPLAY_TYPE_VFD; | |
1909 | ||
1910 | /* | |
1911 | * Try to auto-detect the type of display if the user hasn't set | |
1912 | * it by hand via the display_type modparam. Default is VFD. | |
1913 | */ | |
1914 | ||
1915 | if (display_type == IMON_DISPLAY_TYPE_AUTO) { | |
1916 | switch (ictx->product) { | |
1917 | case 0xffdc: | |
1918 | /* set in imon_get_ffdc_type() */ | |
1919 | configured_display_type = ictx->display_type; | |
1920 | break; | |
1921 | case 0x0034: | |
1922 | case 0x0035: | |
1923 | configured_display_type = IMON_DISPLAY_TYPE_VGA; | |
1924 | break; | |
1925 | case 0x0038: | |
1926 | case 0x0039: | |
1927 | case 0x0045: | |
1928 | configured_display_type = IMON_DISPLAY_TYPE_LCD; | |
1929 | break; | |
1930 | case 0x003c: | |
1931 | case 0x0041: | |
1932 | case 0x0042: | |
1933 | case 0x0043: | |
1934 | configured_display_type = IMON_DISPLAY_TYPE_NONE; | |
1935 | ictx->display_supported = false; | |
1936 | break; | |
1937 | case 0x0036: | |
1938 | case 0x0044: | |
1939 | default: | |
1940 | configured_display_type = IMON_DISPLAY_TYPE_VFD; | |
1941 | break; | |
1942 | } | |
1943 | } else { | |
1944 | configured_display_type = display_type; | |
1945 | if (display_type == IMON_DISPLAY_TYPE_NONE) | |
1946 | ictx->display_supported = false; | |
1947 | else | |
1948 | ictx->display_supported = true; | |
25ec587c MCC |
1949 | dev_info(ictx->dev, "%s: overriding display type to %d via modparam\n", |
1950 | __func__, display_type); | |
04292fc0 JW |
1951 | } |
1952 | ||
1953 | ictx->display_type = configured_display_type; | |
1954 | } | |
1955 | ||
d8b4b582 | 1956 | static struct rc_dev *imon_init_rdev(struct imon_context *ictx) |
eaf2bcc9 | 1957 | { |
d8b4b582 | 1958 | struct rc_dev *rdev; |
eaf2bcc9 | 1959 | int ret; |
c25895c7 CIK |
1960 | static const unsigned char fp_packet[] = { |
1961 | 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x88 }; | |
eaf2bcc9 | 1962 | |
1b450f21 | 1963 | rdev = rc_allocate_device(RC_DRIVER_SCANCODE); |
d8b4b582 | 1964 | if (!rdev) { |
eaf2bcc9 DH |
1965 | dev_err(ictx->dev, "remote control dev allocation failed\n"); |
1966 | goto out; | |
1967 | } | |
1968 | ||
1969 | snprintf(ictx->name_rdev, sizeof(ictx->name_rdev), | |
1970 | "iMON Remote (%04x:%04x)", ictx->vendor, ictx->product); | |
1971 | usb_make_path(ictx->usbdev_intf0, ictx->phys_rdev, | |
1972 | sizeof(ictx->phys_rdev)); | |
1973 | strlcat(ictx->phys_rdev, "/input0", sizeof(ictx->phys_rdev)); | |
1974 | ||
518f4b26 | 1975 | rdev->device_name = ictx->name_rdev; |
d8b4b582 DH |
1976 | rdev->input_phys = ictx->phys_rdev; |
1977 | usb_to_input_id(ictx->usbdev_intf0, &rdev->input_id); | |
eaf2bcc9 | 1978 | rdev->dev.parent = ictx->dev; |
eaf2bcc9 | 1979 | |
d8b4b582 | 1980 | rdev->priv = ictx; |
1b450f21 | 1981 | /* iMON PAD or MCE */ |
2525fdcb | 1982 | rdev->allowed_protocols = RC_PROTO_BIT_IMON | RC_PROTO_BIT_RC6_MCE; |
d8b4b582 DH |
1983 | rdev->change_protocol = imon_ir_change_protocol; |
1984 | rdev->driver_name = MOD_NAME; | |
eaf2bcc9 | 1985 | |
04292fc0 JW |
1986 | /* Enable front-panel buttons and/or knobs */ |
1987 | memcpy(ictx->usb_tx_buf, &fp_packet, sizeof(fp_packet)); | |
1988 | ret = send_packet(ictx); | |
1989 | /* Not fatal, but warn about it */ | |
1990 | if (ret) | |
1991 | dev_info(ictx->dev, "panel buttons/knobs setup failed\n"); | |
1992 | ||
7d2edfc2 | 1993 | if (ictx->product == 0xffdc) { |
04292fc0 | 1994 | imon_get_ffdc_type(ictx); |
6d741bfe | 1995 | rdev->allowed_protocols = ictx->rc_proto; |
7d2edfc2 | 1996 | } |
04292fc0 JW |
1997 | |
1998 | imon_set_display_type(ictx); | |
1999 | ||
1b450f21 | 2000 | if (ictx->rc_proto == RC_PROTO_BIT_RC6_MCE) |
7d2edfc2 JW |
2001 | rdev->map_name = RC_MAP_IMON_MCE; |
2002 | else | |
2003 | rdev->map_name = RC_MAP_IMON_PAD; | |
2004 | ||
d8b4b582 | 2005 | ret = rc_register_device(rdev); |
eaf2bcc9 DH |
2006 | if (ret < 0) { |
2007 | dev_err(ictx->dev, "remote input dev register failed\n"); | |
2008 | goto out; | |
2009 | } | |
2010 | ||
2011 | return rdev; | |
2012 | ||
2013 | out: | |
d8b4b582 | 2014 | rc_free_device(rdev); |
eaf2bcc9 DH |
2015 | return NULL; |
2016 | } | |
2017 | ||
21677cfc JW |
2018 | static struct input_dev *imon_init_idev(struct imon_context *ictx) |
2019 | { | |
cf330691 | 2020 | const struct imon_panel_key_table *key_table; |
21677cfc | 2021 | struct input_dev *idev; |
21677cfc | 2022 | int ret, i; |
21677cfc | 2023 | |
cf330691 FG |
2024 | key_table = ictx->dev_descr->key_table; |
2025 | ||
21677cfc | 2026 | idev = input_allocate_device(); |
da4a7339 | 2027 | if (!idev) |
eaf2bcc9 | 2028 | goto out; |
21677cfc | 2029 | |
21677cfc | 2030 | snprintf(ictx->name_idev, sizeof(ictx->name_idev), |
eaf2bcc9 DH |
2031 | "iMON Panel, Knob and Mouse(%04x:%04x)", |
2032 | ictx->vendor, ictx->product); | |
21677cfc JW |
2033 | idev->name = ictx->name_idev; |
2034 | ||
2035 | usb_make_path(ictx->usbdev_intf0, ictx->phys_idev, | |
2036 | sizeof(ictx->phys_idev)); | |
eaf2bcc9 | 2037 | strlcat(ictx->phys_idev, "/input1", sizeof(ictx->phys_idev)); |
21677cfc JW |
2038 | idev->phys = ictx->phys_idev; |
2039 | ||
db190fc1 | 2040 | idev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP) | BIT_MASK(EV_REL); |
21677cfc JW |
2041 | |
2042 | idev->keybit[BIT_WORD(BTN_MOUSE)] = | |
2043 | BIT_MASK(BTN_LEFT) | BIT_MASK(BTN_RIGHT); | |
2044 | idev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y) | | |
2045 | BIT_MASK(REL_WHEEL); | |
2046 | ||
2047 | /* panel and/or knob code support */ | |
0d8053f2 UE |
2048 | for (i = 0; key_table[i].hw_code != 0; i++) { |
2049 | u32 kc = key_table[i].keycode; | |
21677cfc JW |
2050 | __set_bit(kc, idev->keybit); |
2051 | } | |
2052 | ||
21677cfc JW |
2053 | usb_to_input_id(ictx->usbdev_intf0, &idev->id); |
2054 | idev->dev.parent = ictx->dev; | |
eaf2bcc9 | 2055 | input_set_drvdata(idev, ictx); |
21677cfc | 2056 | |
eaf2bcc9 | 2057 | ret = input_register_device(idev); |
21677cfc | 2058 | if (ret < 0) { |
eaf2bcc9 DH |
2059 | dev_err(ictx->dev, "input dev register failed\n"); |
2060 | goto out; | |
21677cfc JW |
2061 | } |
2062 | ||
2063 | return idev; | |
2064 | ||
eaf2bcc9 | 2065 | out: |
21677cfc | 2066 | input_free_device(idev); |
21677cfc JW |
2067 | return NULL; |
2068 | } | |
2069 | ||
2070 | static struct input_dev *imon_init_touch(struct imon_context *ictx) | |
2071 | { | |
2072 | struct input_dev *touch; | |
2073 | int ret; | |
2074 | ||
2075 | touch = input_allocate_device(); | |
da4a7339 | 2076 | if (!touch) |
21677cfc | 2077 | goto touch_alloc_failed; |
21677cfc JW |
2078 | |
2079 | snprintf(ictx->name_touch, sizeof(ictx->name_touch), | |
2080 | "iMON USB Touchscreen (%04x:%04x)", | |
2081 | ictx->vendor, ictx->product); | |
2082 | touch->name = ictx->name_touch; | |
2083 | ||
2084 | usb_make_path(ictx->usbdev_intf1, ictx->phys_touch, | |
2085 | sizeof(ictx->phys_touch)); | |
eaf2bcc9 | 2086 | strlcat(ictx->phys_touch, "/input2", sizeof(ictx->phys_touch)); |
21677cfc JW |
2087 | touch->phys = ictx->phys_touch; |
2088 | ||
2089 | touch->evbit[0] = | |
2090 | BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS); | |
2091 | touch->keybit[BIT_WORD(BTN_TOUCH)] = | |
2092 | BIT_MASK(BTN_TOUCH); | |
2093 | input_set_abs_params(touch, ABS_X, | |
2094 | 0x00, 0xfff, 0, 0); | |
2095 | input_set_abs_params(touch, ABS_Y, | |
2096 | 0x00, 0xfff, 0, 0); | |
2097 | ||
2098 | input_set_drvdata(touch, ictx); | |
2099 | ||
2100 | usb_to_input_id(ictx->usbdev_intf1, &touch->id); | |
2101 | touch->dev.parent = ictx->dev; | |
2102 | ret = input_register_device(touch); | |
2103 | if (ret < 0) { | |
2104 | dev_info(ictx->dev, "touchscreen input dev register failed\n"); | |
2105 | goto touch_register_failed; | |
2106 | } | |
2107 | ||
2108 | return touch; | |
2109 | ||
2110 | touch_register_failed: | |
aeb35ebc | 2111 | input_free_device(touch); |
21677cfc JW |
2112 | |
2113 | touch_alloc_failed: | |
2114 | return NULL; | |
2115 | } | |
2116 | ||
2117 | static bool imon_find_endpoints(struct imon_context *ictx, | |
2118 | struct usb_host_interface *iface_desc) | |
2119 | { | |
2120 | struct usb_endpoint_descriptor *ep; | |
2121 | struct usb_endpoint_descriptor *rx_endpoint = NULL; | |
2122 | struct usb_endpoint_descriptor *tx_endpoint = NULL; | |
2123 | int ifnum = iface_desc->desc.bInterfaceNumber; | |
2124 | int num_endpts = iface_desc->desc.bNumEndpoints; | |
2125 | int i, ep_dir, ep_type; | |
f789bf40 JW |
2126 | bool ir_ep_found = false; |
2127 | bool display_ep_found = false; | |
2128 | bool tx_control = false; | |
21677cfc JW |
2129 | |
2130 | /* | |
2131 | * Scan the endpoint list and set: | |
2132 | * first input endpoint = IR endpoint | |
2133 | * first output endpoint = display endpoint | |
2134 | */ | |
2135 | for (i = 0; i < num_endpts && !(ir_ep_found && display_ep_found); ++i) { | |
2136 | ep = &iface_desc->endpoint[i].desc; | |
2137 | ep_dir = ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK; | |
9408d8f0 | 2138 | ep_type = usb_endpoint_type(ep); |
21677cfc JW |
2139 | |
2140 | if (!ir_ep_found && ep_dir == USB_DIR_IN && | |
2141 | ep_type == USB_ENDPOINT_XFER_INT) { | |
2142 | ||
2143 | rx_endpoint = ep; | |
f789bf40 | 2144 | ir_ep_found = true; |
21677cfc JW |
2145 | dev_dbg(ictx->dev, "%s: found IR endpoint\n", __func__); |
2146 | ||
2147 | } else if (!display_ep_found && ep_dir == USB_DIR_OUT && | |
2148 | ep_type == USB_ENDPOINT_XFER_INT) { | |
2149 | tx_endpoint = ep; | |
f789bf40 | 2150 | display_ep_found = true; |
21677cfc JW |
2151 | dev_dbg(ictx->dev, "%s: found display endpoint\n", __func__); |
2152 | } | |
2153 | } | |
2154 | ||
2155 | if (ifnum == 0) { | |
2156 | ictx->rx_endpoint_intf0 = rx_endpoint; | |
2157 | /* | |
2158 | * tx is used to send characters to lcd/vfd, associate RF | |
2159 | * remotes, set IR protocol, and maybe more... | |
2160 | */ | |
2161 | ictx->tx_endpoint = tx_endpoint; | |
2162 | } else { | |
2163 | ictx->rx_endpoint_intf1 = rx_endpoint; | |
2164 | } | |
2165 | ||
2166 | /* | |
2167 | * If we didn't find a display endpoint, this is probably one of the | |
2168 | * newer iMON devices that use control urb instead of interrupt | |
2169 | */ | |
2170 | if (!display_ep_found) { | |
f789bf40 JW |
2171 | tx_control = true; |
2172 | display_ep_found = true; | |
25ec587c MCC |
2173 | dev_dbg(ictx->dev, "%s: device uses control endpoint, not interface OUT endpoint\n", |
2174 | __func__); | |
21677cfc JW |
2175 | } |
2176 | ||
2177 | /* | |
2178 | * Some iMON receivers have no display. Unfortunately, it seems | |
2179 | * that SoundGraph recycles device IDs between devices both with | |
2180 | * and without... :\ | |
2181 | */ | |
2182 | if (ictx->display_type == IMON_DISPLAY_TYPE_NONE) { | |
f789bf40 | 2183 | display_ep_found = false; |
21677cfc JW |
2184 | dev_dbg(ictx->dev, "%s: device has no display\n", __func__); |
2185 | } | |
2186 | ||
2187 | /* | |
2188 | * iMON Touch devices have a VGA touchscreen, but no "display", as | |
2189 | * that refers to e.g. /dev/lcd0 (a character device LCD or VFD). | |
2190 | */ | |
2191 | if (ictx->display_type == IMON_DISPLAY_TYPE_VGA) { | |
f789bf40 | 2192 | display_ep_found = false; |
21677cfc JW |
2193 | dev_dbg(ictx->dev, "%s: iMON Touch device found\n", __func__); |
2194 | } | |
2195 | ||
2196 | /* Input endpoint is mandatory */ | |
2197 | if (!ir_ep_found) | |
e2302501 | 2198 | pr_err("no valid input (IR) endpoint found\n"); |
21677cfc JW |
2199 | |
2200 | ictx->tx_control = tx_control; | |
2201 | ||
2202 | if (display_ep_found) | |
2203 | ictx->display_supported = true; | |
2204 | ||
2205 | return ir_ep_found; | |
2206 | ||
2207 | } | |
2208 | ||
f7d141b3 KB |
2209 | static struct imon_context *imon_init_intf0(struct usb_interface *intf, |
2210 | const struct usb_device_id *id) | |
21677cfc JW |
2211 | { |
2212 | struct imon_context *ictx; | |
2213 | struct urb *rx_urb; | |
2214 | struct urb *tx_urb; | |
2215 | struct device *dev = &intf->dev; | |
2216 | struct usb_host_interface *iface_desc; | |
1f71baef | 2217 | int ret = -ENOMEM; |
21677cfc | 2218 | |
a8c779eb | 2219 | ictx = kzalloc(sizeof(*ictx), GFP_KERNEL); |
3e70b256 | 2220 | if (!ictx) |
21677cfc | 2221 | goto exit; |
3e70b256 | 2222 | |
21677cfc | 2223 | rx_urb = usb_alloc_urb(0, GFP_KERNEL); |
15241919 | 2224 | if (!rx_urb) |
21677cfc | 2225 | goto rx_urb_alloc_failed; |
21677cfc | 2226 | tx_urb = usb_alloc_urb(0, GFP_KERNEL); |
15241919 | 2227 | if (!tx_urb) |
21677cfc | 2228 | goto tx_urb_alloc_failed; |
21677cfc JW |
2229 | |
2230 | mutex_init(&ictx->lock); | |
693508df | 2231 | spin_lock_init(&ictx->kc_lock); |
21677cfc JW |
2232 | |
2233 | mutex_lock(&ictx->lock); | |
2234 | ||
2235 | ictx->dev = dev; | |
2236 | ictx->usbdev_intf0 = usb_get_dev(interface_to_usbdev(intf)); | |
21677cfc JW |
2237 | ictx->rx_urb_intf0 = rx_urb; |
2238 | ictx->tx_urb = tx_urb; | |
bbe4690f | 2239 | ictx->rf_device = false; |
21677cfc | 2240 | |
7c073fff DW |
2241 | init_completion(&ictx->tx.finished); |
2242 | ||
21677cfc JW |
2243 | ictx->vendor = le16_to_cpu(ictx->usbdev_intf0->descriptor.idVendor); |
2244 | ictx->product = le16_to_cpu(ictx->usbdev_intf0->descriptor.idProduct); | |
2245 | ||
0d8053f2 UE |
2246 | /* save drive info for later accessing the panel/knob key table */ |
2247 | ictx->dev_descr = (struct imon_usb_dev_descr *)id->driver_info; | |
f7d141b3 | 2248 | /* default send_packet delay is 5ms but some devices need more */ |
0d8053f2 UE |
2249 | ictx->send_packet_delay = ictx->dev_descr->flags & |
2250 | IMON_NEED_20MS_PKT_DELAY ? 20 : 5; | |
f7d141b3 | 2251 | |
1f71baef | 2252 | ret = -ENODEV; |
21677cfc | 2253 | iface_desc = intf->cur_altsetting; |
1f71baef | 2254 | if (!imon_find_endpoints(ictx, iface_desc)) { |
21677cfc | 2255 | goto find_endpoint_failed; |
1f71baef | 2256 | } |
21677cfc | 2257 | |
21677cfc JW |
2258 | usb_fill_int_urb(ictx->rx_urb_intf0, ictx->usbdev_intf0, |
2259 | usb_rcvintpipe(ictx->usbdev_intf0, | |
2260 | ictx->rx_endpoint_intf0->bEndpointAddress), | |
2261 | ictx->usb_rx_buf, sizeof(ictx->usb_rx_buf), | |
2262 | usb_rx_callback_intf0, ictx, | |
2263 | ictx->rx_endpoint_intf0->bInterval); | |
2264 | ||
2265 | ret = usb_submit_urb(ictx->rx_urb_intf0, GFP_KERNEL); | |
2266 | if (ret) { | |
e2302501 | 2267 | pr_err("usb_submit_urb failed for intf0 (%d)\n", ret); |
21677cfc JW |
2268 | goto urb_submit_failed; |
2269 | } | |
2270 | ||
9ad77eb5 JW |
2271 | ictx->idev = imon_init_idev(ictx); |
2272 | if (!ictx->idev) { | |
2273 | dev_err(dev, "%s: input device setup failed\n", __func__); | |
2274 | goto idev_setup_failed; | |
2275 | } | |
2276 | ||
2277 | ictx->rdev = imon_init_rdev(ictx); | |
2278 | if (!ictx->rdev) { | |
2279 | dev_err(dev, "%s: rc device setup failed\n", __func__); | |
2280 | goto rdev_setup_failed; | |
2281 | } | |
2282 | ||
6f6b90c9 JW |
2283 | ictx->dev_present_intf0 = true; |
2284 | ||
23ef710e | 2285 | mutex_unlock(&ictx->lock); |
21677cfc JW |
2286 | return ictx; |
2287 | ||
eaf2bcc9 DH |
2288 | rdev_setup_failed: |
2289 | input_unregister_device(ictx->idev); | |
21677cfc | 2290 | idev_setup_failed: |
9ad77eb5 JW |
2291 | usb_kill_urb(ictx->rx_urb_intf0); |
2292 | urb_submit_failed: | |
21677cfc | 2293 | find_endpoint_failed: |
e87cb470 | 2294 | usb_put_dev(ictx->usbdev_intf0); |
21677cfc JW |
2295 | mutex_unlock(&ictx->lock); |
2296 | usb_free_urb(tx_urb); | |
2297 | tx_urb_alloc_failed: | |
2298 | usb_free_urb(rx_urb); | |
2299 | rx_urb_alloc_failed: | |
2300 | kfree(ictx); | |
2301 | exit: | |
2302 | dev_err(dev, "unable to initialize intf0, err %d\n", ret); | |
2303 | ||
2304 | return NULL; | |
2305 | } | |
2306 | ||
2307 | static struct imon_context *imon_init_intf1(struct usb_interface *intf, | |
2308 | struct imon_context *ictx) | |
2309 | { | |
2310 | struct urb *rx_urb; | |
2311 | struct usb_host_interface *iface_desc; | |
1f71baef | 2312 | int ret = -ENOMEM; |
21677cfc JW |
2313 | |
2314 | rx_urb = usb_alloc_urb(0, GFP_KERNEL); | |
15241919 | 2315 | if (!rx_urb) |
21677cfc | 2316 | goto rx_urb_alloc_failed; |
21677cfc JW |
2317 | |
2318 | mutex_lock(&ictx->lock); | |
2319 | ||
2320 | if (ictx->display_type == IMON_DISPLAY_TYPE_VGA) { | |
b17ec78a | 2321 | timer_setup(&ictx->ttimer, imon_touch_display_timeout, 0); |
21677cfc JW |
2322 | } |
2323 | ||
2324 | ictx->usbdev_intf1 = usb_get_dev(interface_to_usbdev(intf)); | |
21677cfc JW |
2325 | ictx->rx_urb_intf1 = rx_urb; |
2326 | ||
1f71baef | 2327 | ret = -ENODEV; |
21677cfc JW |
2328 | iface_desc = intf->cur_altsetting; |
2329 | if (!imon_find_endpoints(ictx, iface_desc)) | |
2330 | goto find_endpoint_failed; | |
2331 | ||
2332 | if (ictx->display_type == IMON_DISPLAY_TYPE_VGA) { | |
2333 | ictx->touch = imon_init_touch(ictx); | |
2334 | if (!ictx->touch) | |
2335 | goto touch_setup_failed; | |
2336 | } else | |
2337 | ictx->touch = NULL; | |
2338 | ||
2339 | usb_fill_int_urb(ictx->rx_urb_intf1, ictx->usbdev_intf1, | |
2340 | usb_rcvintpipe(ictx->usbdev_intf1, | |
2341 | ictx->rx_endpoint_intf1->bEndpointAddress), | |
2342 | ictx->usb_rx_buf, sizeof(ictx->usb_rx_buf), | |
2343 | usb_rx_callback_intf1, ictx, | |
2344 | ictx->rx_endpoint_intf1->bInterval); | |
2345 | ||
2346 | ret = usb_submit_urb(ictx->rx_urb_intf1, GFP_KERNEL); | |
2347 | ||
2348 | if (ret) { | |
e2302501 | 2349 | pr_err("usb_submit_urb failed for intf1 (%d)\n", ret); |
21677cfc JW |
2350 | goto urb_submit_failed; |
2351 | } | |
2352 | ||
6f6b90c9 JW |
2353 | ictx->dev_present_intf1 = true; |
2354 | ||
23ef710e | 2355 | mutex_unlock(&ictx->lock); |
21677cfc JW |
2356 | return ictx; |
2357 | ||
2358 | urb_submit_failed: | |
20cd1959 | 2359 | if (ictx->touch) |
21677cfc | 2360 | input_unregister_device(ictx->touch); |
21677cfc JW |
2361 | touch_setup_failed: |
2362 | find_endpoint_failed: | |
e87cb470 | 2363 | usb_put_dev(ictx->usbdev_intf1); |
c9458c6f | 2364 | ictx->usbdev_intf1 = NULL; |
21677cfc JW |
2365 | mutex_unlock(&ictx->lock); |
2366 | usb_free_urb(rx_urb); | |
c9458c6f | 2367 | ictx->rx_urb_intf1 = NULL; |
21677cfc | 2368 | rx_urb_alloc_failed: |
8791d63a | 2369 | dev_err(ictx->dev, "unable to initialize intf1, err %d\n", ret); |
21677cfc JW |
2370 | |
2371 | return NULL; | |
2372 | } | |
2373 | ||
21677cfc JW |
2374 | static void imon_init_display(struct imon_context *ictx, |
2375 | struct usb_interface *intf) | |
2376 | { | |
2377 | int ret; | |
2378 | ||
2379 | dev_dbg(ictx->dev, "Registering iMON display with sysfs\n"); | |
2380 | ||
2381 | /* set up sysfs entry for built-in clock */ | |
6aa209e4 | 2382 | ret = sysfs_create_group(&intf->dev.kobj, &imon_display_attr_group); |
21677cfc | 2383 | if (ret) |
25ec587c MCC |
2384 | dev_err(ictx->dev, "Could not create display sysfs entries(%d)", |
2385 | ret); | |
21677cfc JW |
2386 | |
2387 | if (ictx->display_type == IMON_DISPLAY_TYPE_LCD) | |
2388 | ret = usb_register_dev(intf, &imon_lcd_class); | |
2389 | else | |
2390 | ret = usb_register_dev(intf, &imon_vfd_class); | |
2391 | if (ret) | |
2392 | /* Not a fatal error, so ignore */ | |
25ec587c | 2393 | dev_info(ictx->dev, "could not get a minor number for display\n"); |
21677cfc JW |
2394 | |
2395 | } | |
2396 | ||
255940e6 | 2397 | /* |
21677cfc JW |
2398 | * Callback function for USB core API: Probe |
2399 | */ | |
4c62e976 GKH |
2400 | static int imon_probe(struct usb_interface *interface, |
2401 | const struct usb_device_id *id) | |
21677cfc JW |
2402 | { |
2403 | struct usb_device *usbdev = NULL; | |
2404 | struct usb_host_interface *iface_desc = NULL; | |
2405 | struct usb_interface *first_if; | |
2406 | struct device *dev = &interface->dev; | |
76a2d21d | 2407 | int ifnum, sysfs_err; |
21677cfc JW |
2408 | int ret = 0; |
2409 | struct imon_context *ictx = NULL; | |
21677cfc | 2410 | u16 vendor, product; |
21677cfc | 2411 | |
21677cfc JW |
2412 | usbdev = usb_get_dev(interface_to_usbdev(interface)); |
2413 | iface_desc = interface->cur_altsetting; | |
2414 | ifnum = iface_desc->desc.bInterfaceNumber; | |
2415 | vendor = le16_to_cpu(usbdev->descriptor.idVendor); | |
2416 | product = le16_to_cpu(usbdev->descriptor.idProduct); | |
2417 | ||
2418 | dev_dbg(dev, "%s: found iMON device (%04x:%04x, intf%d)\n", | |
2419 | __func__, vendor, product, ifnum); | |
2420 | ||
21677cfc | 2421 | first_if = usb_ifnum_to_if(usbdev, 0); |
58fd55e8 AY |
2422 | if (!first_if) { |
2423 | ret = -ENODEV; | |
2424 | goto fail; | |
2425 | } | |
2426 | ||
a1766a4f TI |
2427 | if (first_if->dev.driver != interface->dev.driver) { |
2428 | dev_err(&interface->dev, "inconsistent driver matching\n"); | |
2429 | ret = -EINVAL; | |
2430 | goto fail; | |
2431 | } | |
2432 | ||
21677cfc | 2433 | if (ifnum == 0) { |
f7d141b3 | 2434 | ictx = imon_init_intf0(interface, id); |
21677cfc | 2435 | if (!ictx) { |
e2302501 | 2436 | pr_err("failed to initialize context!\n"); |
21677cfc JW |
2437 | ret = -ENODEV; |
2438 | goto fail; | |
2439 | } | |
db264d4c | 2440 | refcount_set(&ictx->users, 1); |
21677cfc | 2441 | |
21677cfc | 2442 | } else { |
7d54ba0e | 2443 | /* this is the secondary interface on the device */ |
db264d4c | 2444 | struct imon_context *first_if_ctx = usb_get_intfdata(first_if); |
7d54ba0e KB |
2445 | |
2446 | /* fail early if first intf failed to register */ | |
2447 | if (!first_if_ctx) { | |
2448 | ret = -ENODEV; | |
2449 | goto fail; | |
2450 | } | |
2451 | ||
21677cfc JW |
2452 | ictx = imon_init_intf1(interface, first_if_ctx); |
2453 | if (!ictx) { | |
e2302501 | 2454 | pr_err("failed to attach to context!\n"); |
21677cfc JW |
2455 | ret = -ENODEV; |
2456 | goto fail; | |
2457 | } | |
db264d4c | 2458 | refcount_inc(&ictx->users); |
21677cfc JW |
2459 | |
2460 | } | |
2461 | ||
2462 | usb_set_intfdata(interface, ictx); | |
2463 | ||
2464 | if (ifnum == 0) { | |
bbe4690f JW |
2465 | if (product == 0xffdc && ictx->rf_device) { |
2466 | sysfs_err = sysfs_create_group(&interface->dev.kobj, | |
6aa209e4 | 2467 | &imon_rf_attr_group); |
bbe4690f | 2468 | if (sysfs_err) |
e2302501 JP |
2469 | pr_err("Could not create RF sysfs entries(%d)\n", |
2470 | sysfs_err); | |
bbe4690f JW |
2471 | } |
2472 | ||
21677cfc JW |
2473 | if (ictx->display_supported) |
2474 | imon_init_display(ictx, interface); | |
2475 | } | |
2476 | ||
25ec587c MCC |
2477 | dev_info(dev, "iMON device (%04x:%04x, intf%d) on usb<%d:%d> initialized\n", |
2478 | vendor, product, ifnum, | |
21677cfc JW |
2479 | usbdev->bus->busnum, usbdev->devnum); |
2480 | ||
e87cb470 | 2481 | usb_put_dev(usbdev); |
21677cfc JW |
2482 | |
2483 | return 0; | |
2484 | ||
2485 | fail: | |
e87cb470 | 2486 | usb_put_dev(usbdev); |
21677cfc JW |
2487 | dev_err(dev, "unable to register, err %d\n", ret); |
2488 | ||
2489 | return ret; | |
2490 | } | |
2491 | ||
255940e6 | 2492 | /* |
21677cfc JW |
2493 | * Callback function for USB core API: disconnect |
2494 | */ | |
4c62e976 | 2495 | static void imon_disconnect(struct usb_interface *interface) |
21677cfc JW |
2496 | { |
2497 | struct imon_context *ictx; | |
2498 | struct device *dev; | |
2499 | int ifnum; | |
2500 | ||
21677cfc | 2501 | ictx = usb_get_intfdata(interface); |
db264d4c | 2502 | ictx->disconnected = true; |
21677cfc JW |
2503 | dev = ictx->dev; |
2504 | ifnum = interface->cur_altsetting->desc.bInterfaceNumber; | |
2505 | ||
21677cfc JW |
2506 | /* |
2507 | * sysfs_remove_group is safe to call even if sysfs_create_group | |
2508 | * hasn't been called | |
2509 | */ | |
6aa209e4 JW |
2510 | sysfs_remove_group(&interface->dev.kobj, &imon_display_attr_group); |
2511 | sysfs_remove_group(&interface->dev.kobj, &imon_rf_attr_group); | |
21677cfc JW |
2512 | |
2513 | usb_set_intfdata(interface, NULL); | |
2514 | ||
2515 | /* Abort ongoing write */ | |
2516 | if (ictx->tx.busy) { | |
2517 | usb_kill_urb(ictx->tx_urb); | |
7c073fff | 2518 | complete(&ictx->tx.finished); |
21677cfc JW |
2519 | } |
2520 | ||
2521 | if (ifnum == 0) { | |
f789bf40 | 2522 | ictx->dev_present_intf0 = false; |
21677cfc | 2523 | usb_kill_urb(ictx->rx_urb_intf0); |
eaf2bcc9 | 2524 | input_unregister_device(ictx->idev); |
d8b4b582 | 2525 | rc_unregister_device(ictx->rdev); |
21677cfc JW |
2526 | if (ictx->display_supported) { |
2527 | if (ictx->display_type == IMON_DISPLAY_TYPE_LCD) | |
2528 | usb_deregister_dev(interface, &imon_lcd_class); | |
76a2d21d | 2529 | else if (ictx->display_type == IMON_DISPLAY_TYPE_VFD) |
21677cfc JW |
2530 | usb_deregister_dev(interface, &imon_vfd_class); |
2531 | } | |
af2aa3c4 | 2532 | usb_put_dev(ictx->usbdev_intf0); |
21677cfc | 2533 | } else { |
f789bf40 | 2534 | ictx->dev_present_intf1 = false; |
21677cfc | 2535 | usb_kill_urb(ictx->rx_urb_intf1); |
76a2d21d | 2536 | if (ictx->display_type == IMON_DISPLAY_TYPE_VGA) { |
76a2d21d | 2537 | del_timer_sync(&ictx->ttimer); |
07af64dd | 2538 | input_unregister_device(ictx->touch); |
76a2d21d | 2539 | } |
af2aa3c4 | 2540 | usb_put_dev(ictx->usbdev_intf1); |
21677cfc JW |
2541 | } |
2542 | ||
db264d4c | 2543 | if (refcount_dec_and_test(&ictx->users)) |
76a2d21d | 2544 | free_imon_context(ictx); |
21677cfc | 2545 | |
21677cfc JW |
2546 | dev_dbg(dev, "%s: iMON device (intf%d) disconnected\n", |
2547 | __func__, ifnum); | |
2548 | } | |
2549 | ||
2550 | static int imon_suspend(struct usb_interface *intf, pm_message_t message) | |
2551 | { | |
2552 | struct imon_context *ictx = usb_get_intfdata(intf); | |
2553 | int ifnum = intf->cur_altsetting->desc.bInterfaceNumber; | |
2554 | ||
2555 | if (ifnum == 0) | |
2556 | usb_kill_urb(ictx->rx_urb_intf0); | |
2557 | else | |
2558 | usb_kill_urb(ictx->rx_urb_intf1); | |
2559 | ||
2560 | return 0; | |
2561 | } | |
2562 | ||
2563 | static int imon_resume(struct usb_interface *intf) | |
2564 | { | |
2565 | int rc = 0; | |
2566 | struct imon_context *ictx = usb_get_intfdata(intf); | |
2567 | int ifnum = intf->cur_altsetting->desc.bInterfaceNumber; | |
2568 | ||
2569 | if (ifnum == 0) { | |
2570 | usb_fill_int_urb(ictx->rx_urb_intf0, ictx->usbdev_intf0, | |
2571 | usb_rcvintpipe(ictx->usbdev_intf0, | |
2572 | ictx->rx_endpoint_intf0->bEndpointAddress), | |
2573 | ictx->usb_rx_buf, sizeof(ictx->usb_rx_buf), | |
2574 | usb_rx_callback_intf0, ictx, | |
2575 | ictx->rx_endpoint_intf0->bInterval); | |
2576 | ||
a43617a5 | 2577 | rc = usb_submit_urb(ictx->rx_urb_intf0, GFP_NOIO); |
21677cfc JW |
2578 | |
2579 | } else { | |
2580 | usb_fill_int_urb(ictx->rx_urb_intf1, ictx->usbdev_intf1, | |
2581 | usb_rcvintpipe(ictx->usbdev_intf1, | |
2582 | ictx->rx_endpoint_intf1->bEndpointAddress), | |
2583 | ictx->usb_rx_buf, sizeof(ictx->usb_rx_buf), | |
2584 | usb_rx_callback_intf1, ictx, | |
2585 | ictx->rx_endpoint_intf1->bInterval); | |
2586 | ||
a43617a5 | 2587 | rc = usb_submit_urb(ictx->rx_urb_intf1, GFP_NOIO); |
21677cfc JW |
2588 | } |
2589 | ||
2590 | return rc; | |
2591 | } | |
2592 | ||
ecb3b2b3 | 2593 | module_usb_driver(imon_driver); |