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Commit | Line | Data |
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1a59d1b8 | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
c080d89a | 2 | /* |
c080d89a JK |
3 | * (c) 1999 Andreas Gal <gal@cs.uni-magdeburg.de> |
4 | * (c) 2000-2001 Vojtech Pavlik <vojtech@ucw.cz> | |
a635f9dd | 5 | * (c) 2007-2009 Jiri Kosina |
c080d89a | 6 | * |
a635f9dd | 7 | * HID debugging support |
c080d89a JK |
8 | */ |
9 | ||
10 | /* | |
c080d89a JK |
11 | * |
12 | * Should you need to contact me, the author, you can do so either by | |
13 | * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail: | |
14 | * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic | |
15 | */ | |
16 | ||
4291ee30 JP |
17 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
18 | ||
a635f9dd JK |
19 | #include <linux/debugfs.h> |
20 | #include <linux/seq_file.h> | |
13054abb | 21 | #include <linux/kfifo.h> |
174cd4b1 | 22 | #include <linux/sched/signal.h> |
ec37d321 | 23 | #include <linux/export.h> |
5a0e3ad6 | 24 | #include <linux/slab.h> |
cd667ce2 JK |
25 | #include <linux/uaccess.h> |
26 | #include <linux/poll.h> | |
27 | ||
c080d89a | 28 | #include <linux/hid.h> |
4330eb2e | 29 | #include <linux/hid-debug.h> |
c080d89a | 30 | |
a635f9dd JK |
31 | static struct dentry *hid_debug_root; |
32 | ||
c080d89a JK |
33 | struct hid_usage_entry { |
34 | unsigned page; | |
35 | unsigned usage; | |
0ce1ac3b | 36 | const char *description; |
c080d89a JK |
37 | }; |
38 | ||
39 | static const struct hid_usage_entry hid_usage_table[] = { | |
40 | { 0, 0, "Undefined" }, | |
41 | { 1, 0, "GenericDesktop" }, | |
42 | {0, 0x01, "Pointer"}, | |
43 | {0, 0x02, "Mouse"}, | |
44 | {0, 0x04, "Joystick"}, | |
45 | {0, 0x05, "GamePad"}, | |
46 | {0, 0x06, "Keyboard"}, | |
47 | {0, 0x07, "Keypad"}, | |
48 | {0, 0x08, "MultiAxis"}, | |
49 | {0, 0x30, "X"}, | |
50 | {0, 0x31, "Y"}, | |
51 | {0, 0x32, "Z"}, | |
52 | {0, 0x33, "Rx"}, | |
53 | {0, 0x34, "Ry"}, | |
54 | {0, 0x35, "Rz"}, | |
55 | {0, 0x36, "Slider"}, | |
56 | {0, 0x37, "Dial"}, | |
57 | {0, 0x38, "Wheel"}, | |
58 | {0, 0x39, "HatSwitch"}, | |
59 | {0, 0x3a, "CountedBuffer"}, | |
60 | {0, 0x3b, "ByteCount"}, | |
61 | {0, 0x3c, "MotionWakeup"}, | |
62 | {0, 0x3d, "Start"}, | |
63 | {0, 0x3e, "Select"}, | |
64 | {0, 0x40, "Vx"}, | |
65 | {0, 0x41, "Vy"}, | |
66 | {0, 0x42, "Vz"}, | |
67 | {0, 0x43, "Vbrx"}, | |
68 | {0, 0x44, "Vbry"}, | |
69 | {0, 0x45, "Vbrz"}, | |
70 | {0, 0x46, "Vno"}, | |
71 | {0, 0x80, "SystemControl"}, | |
72 | {0, 0x81, "SystemPowerDown"}, | |
73 | {0, 0x82, "SystemSleep"}, | |
74 | {0, 0x83, "SystemWakeUp"}, | |
75 | {0, 0x84, "SystemContextMenu"}, | |
76 | {0, 0x85, "SystemMainMenu"}, | |
77 | {0, 0x86, "SystemAppMenu"}, | |
78 | {0, 0x87, "SystemMenuHelp"}, | |
79 | {0, 0x88, "SystemMenuExit"}, | |
80 | {0, 0x89, "SystemMenuSelect"}, | |
81 | {0, 0x8a, "SystemMenuRight"}, | |
82 | {0, 0x8b, "SystemMenuLeft"}, | |
83 | {0, 0x8c, "SystemMenuUp"}, | |
84 | {0, 0x8d, "SystemMenuDown"}, | |
85 | {0, 0x90, "D-PadUp"}, | |
86 | {0, 0x91, "D-PadDown"}, | |
87 | {0, 0x92, "D-PadRight"}, | |
88 | {0, 0x93, "D-PadLeft"}, | |
89 | { 2, 0, "Simulation" }, | |
90 | {0, 0xb0, "Aileron"}, | |
91 | {0, 0xb1, "AileronTrim"}, | |
92 | {0, 0xb2, "Anti-Torque"}, | |
93 | {0, 0xb3, "Autopilot"}, | |
94 | {0, 0xb4, "Chaff"}, | |
95 | {0, 0xb5, "Collective"}, | |
96 | {0, 0xb6, "DiveBrake"}, | |
97 | {0, 0xb7, "ElectronicCountermeasures"}, | |
98 | {0, 0xb8, "Elevator"}, | |
99 | {0, 0xb9, "ElevatorTrim"}, | |
100 | {0, 0xba, "Rudder"}, | |
101 | {0, 0xbb, "Throttle"}, | |
102 | {0, 0xbc, "FlightCommunications"}, | |
103 | {0, 0xbd, "FlareRelease"}, | |
104 | {0, 0xbe, "LandingGear"}, | |
105 | {0, 0xbf, "ToeBrake"}, | |
1f59169e JF |
106 | { 6, 0, "GenericDeviceControls" }, |
107 | {0, 0x20, "BatteryStrength" }, | |
108 | {0, 0x21, "WirelessChannel" }, | |
109 | {0, 0x22, "WirelessID" }, | |
110 | {0, 0x23, "DiscoverWirelessControl" }, | |
111 | {0, 0x24, "SecurityCodeCharacterEntered" }, | |
112 | {0, 0x25, "SecurityCodeCharactedErased" }, | |
113 | {0, 0x26, "SecurityCodeCleared" }, | |
c080d89a JK |
114 | { 7, 0, "Keyboard" }, |
115 | { 8, 0, "LED" }, | |
116 | {0, 0x01, "NumLock"}, | |
117 | {0, 0x02, "CapsLock"}, | |
118 | {0, 0x03, "ScrollLock"}, | |
119 | {0, 0x04, "Compose"}, | |
120 | {0, 0x05, "Kana"}, | |
121 | {0, 0x4b, "GenericIndicator"}, | |
122 | { 9, 0, "Button" }, | |
123 | { 10, 0, "Ordinal" }, | |
124 | { 12, 0, "Consumer" }, | |
125 | {0, 0x238, "HorizontalWheel"}, | |
126 | { 13, 0, "Digitizers" }, | |
127 | {0, 0x01, "Digitizer"}, | |
128 | {0, 0x02, "Pen"}, | |
129 | {0, 0x03, "LightPen"}, | |
130 | {0, 0x04, "TouchScreen"}, | |
131 | {0, 0x05, "TouchPad"}, | |
959d973e | 132 | {0, 0x0e, "DeviceConfiguration"}, |
c080d89a JK |
133 | {0, 0x20, "Stylus"}, |
134 | {0, 0x21, "Puck"}, | |
135 | {0, 0x22, "Finger"}, | |
959d973e | 136 | {0, 0x23, "DeviceSettings"}, |
c080d89a JK |
137 | {0, 0x30, "TipPressure"}, |
138 | {0, 0x31, "BarrelPressure"}, | |
139 | {0, 0x32, "InRange"}, | |
140 | {0, 0x33, "Touch"}, | |
141 | {0, 0x34, "UnTouch"}, | |
142 | {0, 0x35, "Tap"}, | |
143 | {0, 0x39, "TabletFunctionKey"}, | |
144 | {0, 0x3a, "ProgramChangeKey"}, | |
145 | {0, 0x3c, "Invert"}, | |
146 | {0, 0x42, "TipSwitch"}, | |
147 | {0, 0x43, "SecondaryTipSwitch"}, | |
148 | {0, 0x44, "BarrelSwitch"}, | |
149 | {0, 0x45, "Eraser"}, | |
150 | {0, 0x46, "TabletPick"}, | |
89f536cc SC |
151 | {0, 0x47, "Confidence"}, |
152 | {0, 0x48, "Width"}, | |
153 | {0, 0x49, "Height"}, | |
154 | {0, 0x51, "ContactID"}, | |
155 | {0, 0x52, "InputMode"}, | |
156 | {0, 0x53, "DeviceIndex"}, | |
157 | {0, 0x54, "ContactCount"}, | |
158 | {0, 0x55, "ContactMaximumNumber"}, | |
2c6e0277 | 159 | {0, 0x59, "ButtonType"}, |
368c9664 PC |
160 | {0, 0x5A, "SecondaryBarrelSwitch"}, |
161 | {0, 0x5B, "TransducerSerialNumber"}, | |
c080d89a JK |
162 | { 15, 0, "PhysicalInterfaceDevice" }, |
163 | {0, 0x00, "Undefined"}, | |
164 | {0, 0x01, "Physical_Interface_Device"}, | |
165 | {0, 0x20, "Normal"}, | |
166 | {0, 0x21, "Set_Effect_Report"}, | |
167 | {0, 0x22, "Effect_Block_Index"}, | |
168 | {0, 0x23, "Parameter_Block_Offset"}, | |
169 | {0, 0x24, "ROM_Flag"}, | |
170 | {0, 0x25, "Effect_Type"}, | |
171 | {0, 0x26, "ET_Constant_Force"}, | |
172 | {0, 0x27, "ET_Ramp"}, | |
173 | {0, 0x28, "ET_Custom_Force_Data"}, | |
174 | {0, 0x30, "ET_Square"}, | |
175 | {0, 0x31, "ET_Sine"}, | |
176 | {0, 0x32, "ET_Triangle"}, | |
177 | {0, 0x33, "ET_Sawtooth_Up"}, | |
178 | {0, 0x34, "ET_Sawtooth_Down"}, | |
179 | {0, 0x40, "ET_Spring"}, | |
180 | {0, 0x41, "ET_Damper"}, | |
181 | {0, 0x42, "ET_Inertia"}, | |
182 | {0, 0x43, "ET_Friction"}, | |
183 | {0, 0x50, "Duration"}, | |
184 | {0, 0x51, "Sample_Period"}, | |
185 | {0, 0x52, "Gain"}, | |
186 | {0, 0x53, "Trigger_Button"}, | |
187 | {0, 0x54, "Trigger_Repeat_Interval"}, | |
188 | {0, 0x55, "Axes_Enable"}, | |
189 | {0, 0x56, "Direction_Enable"}, | |
190 | {0, 0x57, "Direction"}, | |
191 | {0, 0x58, "Type_Specific_Block_Offset"}, | |
192 | {0, 0x59, "Block_Type"}, | |
193 | {0, 0x5A, "Set_Envelope_Report"}, | |
194 | {0, 0x5B, "Attack_Level"}, | |
195 | {0, 0x5C, "Attack_Time"}, | |
196 | {0, 0x5D, "Fade_Level"}, | |
197 | {0, 0x5E, "Fade_Time"}, | |
198 | {0, 0x5F, "Set_Condition_Report"}, | |
199 | {0, 0x60, "CP_Offset"}, | |
200 | {0, 0x61, "Positive_Coefficient"}, | |
201 | {0, 0x62, "Negative_Coefficient"}, | |
202 | {0, 0x63, "Positive_Saturation"}, | |
203 | {0, 0x64, "Negative_Saturation"}, | |
204 | {0, 0x65, "Dead_Band"}, | |
205 | {0, 0x66, "Download_Force_Sample"}, | |
206 | {0, 0x67, "Isoch_Custom_Force_Enable"}, | |
207 | {0, 0x68, "Custom_Force_Data_Report"}, | |
208 | {0, 0x69, "Custom_Force_Data"}, | |
209 | {0, 0x6A, "Custom_Force_Vendor_Defined_Data"}, | |
210 | {0, 0x6B, "Set_Custom_Force_Report"}, | |
211 | {0, 0x6C, "Custom_Force_Data_Offset"}, | |
212 | {0, 0x6D, "Sample_Count"}, | |
213 | {0, 0x6E, "Set_Periodic_Report"}, | |
214 | {0, 0x6F, "Offset"}, | |
215 | {0, 0x70, "Magnitude"}, | |
216 | {0, 0x71, "Phase"}, | |
217 | {0, 0x72, "Period"}, | |
218 | {0, 0x73, "Set_Constant_Force_Report"}, | |
219 | {0, 0x74, "Set_Ramp_Force_Report"}, | |
220 | {0, 0x75, "Ramp_Start"}, | |
221 | {0, 0x76, "Ramp_End"}, | |
222 | {0, 0x77, "Effect_Operation_Report"}, | |
223 | {0, 0x78, "Effect_Operation"}, | |
224 | {0, 0x79, "Op_Effect_Start"}, | |
225 | {0, 0x7A, "Op_Effect_Start_Solo"}, | |
226 | {0, 0x7B, "Op_Effect_Stop"}, | |
227 | {0, 0x7C, "Loop_Count"}, | |
228 | {0, 0x7D, "Device_Gain_Report"}, | |
229 | {0, 0x7E, "Device_Gain"}, | |
230 | {0, 0x7F, "PID_Pool_Report"}, | |
231 | {0, 0x80, "RAM_Pool_Size"}, | |
232 | {0, 0x81, "ROM_Pool_Size"}, | |
233 | {0, 0x82, "ROM_Effect_Block_Count"}, | |
234 | {0, 0x83, "Simultaneous_Effects_Max"}, | |
235 | {0, 0x84, "Pool_Alignment"}, | |
236 | {0, 0x85, "PID_Pool_Move_Report"}, | |
237 | {0, 0x86, "Move_Source"}, | |
238 | {0, 0x87, "Move_Destination"}, | |
239 | {0, 0x88, "Move_Length"}, | |
240 | {0, 0x89, "PID_Block_Load_Report"}, | |
241 | {0, 0x8B, "Block_Load_Status"}, | |
242 | {0, 0x8C, "Block_Load_Success"}, | |
243 | {0, 0x8D, "Block_Load_Full"}, | |
244 | {0, 0x8E, "Block_Load_Error"}, | |
245 | {0, 0x8F, "Block_Handle"}, | |
246 | {0, 0x90, "PID_Block_Free_Report"}, | |
247 | {0, 0x91, "Type_Specific_Block_Handle"}, | |
248 | {0, 0x92, "PID_State_Report"}, | |
249 | {0, 0x94, "Effect_Playing"}, | |
250 | {0, 0x95, "PID_Device_Control_Report"}, | |
251 | {0, 0x96, "PID_Device_Control"}, | |
252 | {0, 0x97, "DC_Enable_Actuators"}, | |
253 | {0, 0x98, "DC_Disable_Actuators"}, | |
254 | {0, 0x99, "DC_Stop_All_Effects"}, | |
255 | {0, 0x9A, "DC_Device_Reset"}, | |
256 | {0, 0x9B, "DC_Device_Pause"}, | |
257 | {0, 0x9C, "DC_Device_Continue"}, | |
258 | {0, 0x9F, "Device_Paused"}, | |
259 | {0, 0xA0, "Actuators_Enabled"}, | |
260 | {0, 0xA4, "Safety_Switch"}, | |
261 | {0, 0xA5, "Actuator_Override_Switch"}, | |
262 | {0, 0xA6, "Actuator_Power"}, | |
263 | {0, 0xA7, "Start_Delay"}, | |
264 | {0, 0xA8, "Parameter_Block_Size"}, | |
265 | {0, 0xA9, "Device_Managed_Pool"}, | |
266 | {0, 0xAA, "Shared_Parameter_Blocks"}, | |
267 | {0, 0xAB, "Create_New_Effect_Report"}, | |
268 | {0, 0xAC, "RAM_Pool_Available"}, | |
b510d09c RA |
269 | { 0x20, 0, "Sensor" }, |
270 | { 0x20, 0x01, "Sensor" }, | |
271 | { 0x20, 0x10, "Biometric" }, | |
272 | { 0x20, 0x11, "BiometricHumanPresence" }, | |
273 | { 0x20, 0x12, "BiometricHumanProximity" }, | |
274 | { 0x20, 0x13, "BiometricHumanTouch" }, | |
275 | { 0x20, 0x20, "Electrical" }, | |
276 | { 0x20, 0x21, "ElectricalCapacitance" }, | |
277 | { 0x20, 0x22, "ElectricalCurrent" }, | |
278 | { 0x20, 0x23, "ElectricalPower" }, | |
279 | { 0x20, 0x24, "ElectricalInductance" }, | |
280 | { 0x20, 0x25, "ElectricalResistance" }, | |
281 | { 0x20, 0x26, "ElectricalVoltage" }, | |
282 | { 0x20, 0x27, "ElectricalPoteniometer" }, | |
283 | { 0x20, 0x28, "ElectricalFrequency" }, | |
284 | { 0x20, 0x29, "ElectricalPeriod" }, | |
285 | { 0x20, 0x30, "Environmental" }, | |
286 | { 0x20, 0x31, "EnvironmentalAtmosphericPressure" }, | |
287 | { 0x20, 0x32, "EnvironmentalHumidity" }, | |
288 | { 0x20, 0x33, "EnvironmentalTemperature" }, | |
289 | { 0x20, 0x34, "EnvironmentalWindDirection" }, | |
290 | { 0x20, 0x35, "EnvironmentalWindSpeed" }, | |
291 | { 0x20, 0x40, "Light" }, | |
292 | { 0x20, 0x41, "LightAmbientLight" }, | |
293 | { 0x20, 0x42, "LightConsumerInfrared" }, | |
294 | { 0x20, 0x50, "Location" }, | |
295 | { 0x20, 0x51, "LocationBroadcast" }, | |
296 | { 0x20, 0x52, "LocationDeadReckoning" }, | |
297 | { 0x20, 0x53, "LocationGPS" }, | |
298 | { 0x20, 0x54, "LocationLookup" }, | |
299 | { 0x20, 0x55, "LocationOther" }, | |
300 | { 0x20, 0x56, "LocationStatic" }, | |
301 | { 0x20, 0x57, "LocationTriangulation" }, | |
302 | { 0x20, 0x60, "Mechanical" }, | |
303 | { 0x20, 0x61, "MechanicalBooleanSwitch" }, | |
304 | { 0x20, 0x62, "MechanicalBooleanSwitchArray" }, | |
305 | { 0x20, 0x63, "MechanicalMultivalueSwitch" }, | |
306 | { 0x20, 0x64, "MechanicalForce" }, | |
307 | { 0x20, 0x65, "MechanicalPressure" }, | |
308 | { 0x20, 0x66, "MechanicalStrain" }, | |
309 | { 0x20, 0x67, "MechanicalWeight" }, | |
310 | { 0x20, 0x68, "MechanicalHapticVibrator" }, | |
311 | { 0x20, 0x69, "MechanicalHallEffectSwitch" }, | |
312 | { 0x20, 0x70, "Motion" }, | |
313 | { 0x20, 0x71, "MotionAccelerometer1D" }, | |
314 | { 0x20, 0x72, "MotionAccelerometer2D" }, | |
315 | { 0x20, 0x73, "MotionAccelerometer3D" }, | |
316 | { 0x20, 0x74, "MotionGyrometer1D" }, | |
317 | { 0x20, 0x75, "MotionGyrometer2D" }, | |
318 | { 0x20, 0x76, "MotionGyrometer3D" }, | |
319 | { 0x20, 0x77, "MotionMotionDetector" }, | |
320 | { 0x20, 0x78, "MotionSpeedometer" }, | |
321 | { 0x20, 0x79, "MotionAccelerometer" }, | |
322 | { 0x20, 0x7A, "MotionGyrometer" }, | |
323 | { 0x20, 0x80, "Orientation" }, | |
324 | { 0x20, 0x81, "OrientationCompass1D" }, | |
325 | { 0x20, 0x82, "OrientationCompass2D" }, | |
326 | { 0x20, 0x83, "OrientationCompass3D" }, | |
327 | { 0x20, 0x84, "OrientationInclinometer1D" }, | |
328 | { 0x20, 0x85, "OrientationInclinometer2D" }, | |
329 | { 0x20, 0x86, "OrientationInclinometer3D" }, | |
330 | { 0x20, 0x87, "OrientationDistance1D" }, | |
331 | { 0x20, 0x88, "OrientationDistance2D" }, | |
332 | { 0x20, 0x89, "OrientationDistance3D" }, | |
333 | { 0x20, 0x8A, "OrientationDeviceOrientation" }, | |
334 | { 0x20, 0x8B, "OrientationCompass" }, | |
335 | { 0x20, 0x8C, "OrientationInclinometer" }, | |
336 | { 0x20, 0x8D, "OrientationDistance" }, | |
337 | { 0x20, 0x90, "Scanner" }, | |
338 | { 0x20, 0x91, "ScannerBarcode" }, | |
339 | { 0x20, 0x91, "ScannerRFID" }, | |
340 | { 0x20, 0x91, "ScannerNFC" }, | |
341 | { 0x20, 0xA0, "Time" }, | |
342 | { 0x20, 0xA1, "TimeAlarmTimer" }, | |
343 | { 0x20, 0xA2, "TimeRealTimeClock" }, | |
344 | { 0x20, 0xE0, "Other" }, | |
345 | { 0x20, 0xE1, "OtherCustom" }, | |
346 | { 0x20, 0xE2, "OtherGeneric" }, | |
347 | { 0x20, 0xE3, "OtherGenericEnumerator" }, | |
c080d89a JK |
348 | { 0x84, 0, "Power Device" }, |
349 | { 0x84, 0x02, "PresentStatus" }, | |
350 | { 0x84, 0x03, "ChangeStatus" }, | |
351 | { 0x84, 0x04, "UPS" }, | |
352 | { 0x84, 0x05, "PowerSupply" }, | |
353 | { 0x84, 0x10, "BatterySystem" }, | |
354 | { 0x84, 0x11, "BatterySystemID" }, | |
355 | { 0x84, 0x12, "Battery" }, | |
356 | { 0x84, 0x13, "BatteryID" }, | |
357 | { 0x84, 0x14, "Charger" }, | |
358 | { 0x84, 0x15, "ChargerID" }, | |
359 | { 0x84, 0x16, "PowerConverter" }, | |
360 | { 0x84, 0x17, "PowerConverterID" }, | |
361 | { 0x84, 0x18, "OutletSystem" }, | |
362 | { 0x84, 0x19, "OutletSystemID" }, | |
363 | { 0x84, 0x1a, "Input" }, | |
364 | { 0x84, 0x1b, "InputID" }, | |
365 | { 0x84, 0x1c, "Output" }, | |
366 | { 0x84, 0x1d, "OutputID" }, | |
367 | { 0x84, 0x1e, "Flow" }, | |
368 | { 0x84, 0x1f, "FlowID" }, | |
369 | { 0x84, 0x20, "Outlet" }, | |
370 | { 0x84, 0x21, "OutletID" }, | |
371 | { 0x84, 0x22, "Gang" }, | |
372 | { 0x84, 0x24, "PowerSummary" }, | |
373 | { 0x84, 0x25, "PowerSummaryID" }, | |
374 | { 0x84, 0x30, "Voltage" }, | |
375 | { 0x84, 0x31, "Current" }, | |
376 | { 0x84, 0x32, "Frequency" }, | |
377 | { 0x84, 0x33, "ApparentPower" }, | |
378 | { 0x84, 0x35, "PercentLoad" }, | |
379 | { 0x84, 0x40, "ConfigVoltage" }, | |
380 | { 0x84, 0x41, "ConfigCurrent" }, | |
381 | { 0x84, 0x43, "ConfigApparentPower" }, | |
382 | { 0x84, 0x53, "LowVoltageTransfer" }, | |
383 | { 0x84, 0x54, "HighVoltageTransfer" }, | |
384 | { 0x84, 0x56, "DelayBeforeStartup" }, | |
385 | { 0x84, 0x57, "DelayBeforeShutdown" }, | |
386 | { 0x84, 0x58, "Test" }, | |
387 | { 0x84, 0x5a, "AudibleAlarmControl" }, | |
388 | { 0x84, 0x60, "Present" }, | |
389 | { 0x84, 0x61, "Good" }, | |
390 | { 0x84, 0x62, "InternalFailure" }, | |
391 | { 0x84, 0x65, "Overload" }, | |
392 | { 0x84, 0x66, "OverCharged" }, | |
393 | { 0x84, 0x67, "OverTemperature" }, | |
394 | { 0x84, 0x68, "ShutdownRequested" }, | |
395 | { 0x84, 0x69, "ShutdownImminent" }, | |
396 | { 0x84, 0x6b, "SwitchOn/Off" }, | |
397 | { 0x84, 0x6c, "Switchable" }, | |
398 | { 0x84, 0x6d, "Used" }, | |
399 | { 0x84, 0x6e, "Boost" }, | |
400 | { 0x84, 0x73, "CommunicationLost" }, | |
401 | { 0x84, 0xfd, "iManufacturer" }, | |
402 | { 0x84, 0xfe, "iProduct" }, | |
403 | { 0x84, 0xff, "iSerialNumber" }, | |
404 | { 0x85, 0, "Battery System" }, | |
405 | { 0x85, 0x01, "SMBBatteryMode" }, | |
406 | { 0x85, 0x02, "SMBBatteryStatus" }, | |
407 | { 0x85, 0x03, "SMBAlarmWarning" }, | |
408 | { 0x85, 0x04, "SMBChargerMode" }, | |
409 | { 0x85, 0x05, "SMBChargerStatus" }, | |
410 | { 0x85, 0x06, "SMBChargerSpecInfo" }, | |
411 | { 0x85, 0x07, "SMBSelectorState" }, | |
412 | { 0x85, 0x08, "SMBSelectorPresets" }, | |
413 | { 0x85, 0x09, "SMBSelectorInfo" }, | |
414 | { 0x85, 0x29, "RemainingCapacityLimit" }, | |
415 | { 0x85, 0x2c, "CapacityMode" }, | |
416 | { 0x85, 0x42, "BelowRemainingCapacityLimit" }, | |
417 | { 0x85, 0x44, "Charging" }, | |
418 | { 0x85, 0x45, "Discharging" }, | |
419 | { 0x85, 0x4b, "NeedReplacement" }, | |
420 | { 0x85, 0x66, "RemainingCapacity" }, | |
421 | { 0x85, 0x68, "RunTimeToEmpty" }, | |
422 | { 0x85, 0x6a, "AverageTimeToFull" }, | |
423 | { 0x85, 0x83, "DesignCapacity" }, | |
424 | { 0x85, 0x85, "ManufacturerDate" }, | |
425 | { 0x85, 0x89, "iDeviceChemistry" }, | |
25985edc | 426 | { 0x85, 0x8b, "Rechargeable" }, |
c080d89a JK |
427 | { 0x85, 0x8f, "iOEMInformation" }, |
428 | { 0x85, 0x8d, "CapacityGranularity1" }, | |
429 | { 0x85, 0xd0, "ACPresent" }, | |
430 | /* pages 0xff00 to 0xffff are vendor-specific */ | |
431 | { 0xffff, 0, "Vendor-specific-FF" }, | |
432 | { 0, 0, NULL } | |
433 | }; | |
434 | ||
cd667ce2 JK |
435 | /* Either output directly into simple seq_file, or (if f == NULL) |
436 | * allocate a separate buffer that will then be passed to the 'events' | |
437 | * ringbuffer. | |
438 | * | |
439 | * This is because these functions can be called both for "one-shot" | |
440 | * "rdesc" while resolving, or for blocking "events". | |
441 | * | |
442 | * This holds both for resolv_usage_page() and hid_resolv_usage(). | |
443 | */ | |
444 | static char *resolv_usage_page(unsigned page, struct seq_file *f) { | |
c080d89a | 445 | const struct hid_usage_entry *p; |
cd667ce2 JK |
446 | char *buf = NULL; |
447 | ||
448 | if (!f) { | |
6396bb22 | 449 | buf = kzalloc(HID_DEBUG_BUFSIZE, GFP_ATOMIC); |
cd667ce2 JK |
450 | if (!buf) |
451 | return ERR_PTR(-ENOMEM); | |
452 | } | |
c080d89a JK |
453 | |
454 | for (p = hid_usage_table; p->description; p++) | |
455 | if (p->page == page) { | |
cd667ce2 JK |
456 | if (!f) { |
457 | snprintf(buf, HID_DEBUG_BUFSIZE, "%s", | |
458 | p->description); | |
459 | return buf; | |
460 | } | |
461 | else { | |
a635f9dd | 462 | seq_printf(f, "%s", p->description); |
cd667ce2 JK |
463 | return NULL; |
464 | } | |
c080d89a | 465 | } |
a635f9dd | 466 | if (!f) |
cd667ce2 | 467 | snprintf(buf, HID_DEBUG_BUFSIZE, "%04x", page); |
a635f9dd JK |
468 | else |
469 | seq_printf(f, "%04x", page); | |
cd667ce2 | 470 | return buf; |
c080d89a JK |
471 | } |
472 | ||
cd667ce2 | 473 | char *hid_resolv_usage(unsigned usage, struct seq_file *f) { |
c080d89a | 474 | const struct hid_usage_entry *p; |
cd667ce2 JK |
475 | char *buf = NULL; |
476 | int len = 0; | |
c080d89a | 477 | |
cd667ce2 JK |
478 | buf = resolv_usage_page(usage >> 16, f); |
479 | if (IS_ERR(buf)) { | |
4291ee30 | 480 | pr_err("error allocating HID debug buffer\n"); |
cd667ce2 JK |
481 | return NULL; |
482 | } | |
c080d89a | 483 | |
58037eb9 | 484 | |
cd667ce2 JK |
485 | if (!f) { |
486 | len = strlen(buf); | |
487 | snprintf(buf+len, max(0, HID_DEBUG_BUFSIZE - len), "."); | |
488 | len++; | |
489 | } | |
490 | else { | |
a635f9dd | 491 | seq_printf(f, "."); |
cd667ce2 | 492 | } |
c080d89a JK |
493 | for (p = hid_usage_table; p->description; p++) |
494 | if (p->page == (usage >> 16)) { | |
495 | for(++p; p->description && p->usage != 0; p++) | |
496 | if (p->usage == (usage & 0xffff)) { | |
a635f9dd | 497 | if (!f) |
cd667ce2 JK |
498 | snprintf(buf + len, |
499 | max(0,HID_DEBUG_BUFSIZE - len - 1), | |
500 | "%s", p->description); | |
a635f9dd JK |
501 | else |
502 | seq_printf(f, | |
503 | "%s", | |
504 | p->description); | |
cd667ce2 | 505 | return buf; |
c080d89a JK |
506 | } |
507 | break; | |
508 | } | |
a635f9dd | 509 | if (!f) |
cd667ce2 JK |
510 | snprintf(buf + len, max(0, HID_DEBUG_BUFSIZE - len - 1), |
511 | "%04x", usage & 0xffff); | |
a635f9dd JK |
512 | else |
513 | seq_printf(f, "%04x", usage & 0xffff); | |
cd667ce2 | 514 | return buf; |
c080d89a JK |
515 | } |
516 | EXPORT_SYMBOL_GPL(hid_resolv_usage); | |
517 | ||
a635f9dd JK |
518 | static void tab(int n, struct seq_file *f) { |
519 | seq_printf(f, "%*s", n, ""); | |
c080d89a JK |
520 | } |
521 | ||
a635f9dd | 522 | void hid_dump_field(struct hid_field *field, int n, struct seq_file *f) { |
c080d89a JK |
523 | int j; |
524 | ||
525 | if (field->physical) { | |
a635f9dd JK |
526 | tab(n, f); |
527 | seq_printf(f, "Physical("); | |
528 | hid_resolv_usage(field->physical, f); seq_printf(f, ")\n"); | |
c080d89a JK |
529 | } |
530 | if (field->logical) { | |
a635f9dd JK |
531 | tab(n, f); |
532 | seq_printf(f, "Logical("); | |
533 | hid_resolv_usage(field->logical, f); seq_printf(f, ")\n"); | |
c080d89a | 534 | } |
54d3339a JB |
535 | if (field->application) { |
536 | tab(n, f); | |
537 | seq_printf(f, "Application("); | |
538 | hid_resolv_usage(field->application, f); seq_printf(f, ")\n"); | |
539 | } | |
a635f9dd | 540 | tab(n, f); seq_printf(f, "Usage(%d)\n", field->maxusage); |
c080d89a | 541 | for (j = 0; j < field->maxusage; j++) { |
a635f9dd | 542 | tab(n+2, f); hid_resolv_usage(field->usage[j].hid, f); seq_printf(f, "\n"); |
c080d89a JK |
543 | } |
544 | if (field->logical_minimum != field->logical_maximum) { | |
a635f9dd JK |
545 | tab(n, f); seq_printf(f, "Logical Minimum(%d)\n", field->logical_minimum); |
546 | tab(n, f); seq_printf(f, "Logical Maximum(%d)\n", field->logical_maximum); | |
c080d89a JK |
547 | } |
548 | if (field->physical_minimum != field->physical_maximum) { | |
a635f9dd JK |
549 | tab(n, f); seq_printf(f, "Physical Minimum(%d)\n", field->physical_minimum); |
550 | tab(n, f); seq_printf(f, "Physical Maximum(%d)\n", field->physical_maximum); | |
c080d89a JK |
551 | } |
552 | if (field->unit_exponent) { | |
a635f9dd | 553 | tab(n, f); seq_printf(f, "Unit Exponent(%d)\n", field->unit_exponent); |
c080d89a JK |
554 | } |
555 | if (field->unit) { | |
0ce1ac3b JP |
556 | static const char *systems[5] = { "None", "SI Linear", "SI Rotation", "English Linear", "English Rotation" }; |
557 | static const char *units[5][8] = { | |
c080d89a JK |
558 | { "None", "None", "None", "None", "None", "None", "None", "None" }, |
559 | { "None", "Centimeter", "Gram", "Seconds", "Kelvin", "Ampere", "Candela", "None" }, | |
560 | { "None", "Radians", "Gram", "Seconds", "Kelvin", "Ampere", "Candela", "None" }, | |
561 | { "None", "Inch", "Slug", "Seconds", "Fahrenheit", "Ampere", "Candela", "None" }, | |
562 | { "None", "Degrees", "Slug", "Seconds", "Fahrenheit", "Ampere", "Candela", "None" } | |
563 | }; | |
564 | ||
565 | int i; | |
566 | int sys; | |
567 | __u32 data = field->unit; | |
568 | ||
569 | /* First nibble tells us which system we're in. */ | |
570 | sys = data & 0xf; | |
571 | data >>= 4; | |
572 | ||
573 | if(sys > 4) { | |
a635f9dd | 574 | tab(n, f); seq_printf(f, "Unit(Invalid)\n"); |
c080d89a JK |
575 | } |
576 | else { | |
577 | int earlier_unit = 0; | |
578 | ||
a635f9dd | 579 | tab(n, f); seq_printf(f, "Unit(%s : ", systems[sys]); |
c080d89a JK |
580 | |
581 | for (i=1 ; i<sizeof(__u32)*2 ; i++) { | |
582 | char nibble = data & 0xf; | |
583 | data >>= 4; | |
584 | if (nibble != 0) { | |
585 | if(earlier_unit++ > 0) | |
a635f9dd JK |
586 | seq_printf(f, "*"); |
587 | seq_printf(f, "%s", units[sys][i]); | |
c080d89a JK |
588 | if(nibble != 1) { |
589 | /* This is a _signed_ nibble(!) */ | |
590 | ||
591 | int val = nibble & 0x7; | |
592 | if(nibble & 0x08) | |
593 | val = -((0x7 & ~val) +1); | |
a635f9dd | 594 | seq_printf(f, "^%d", val); |
c080d89a JK |
595 | } |
596 | } | |
597 | } | |
a635f9dd | 598 | seq_printf(f, ")\n"); |
c080d89a JK |
599 | } |
600 | } | |
a635f9dd JK |
601 | tab(n, f); seq_printf(f, "Report Size(%u)\n", field->report_size); |
602 | tab(n, f); seq_printf(f, "Report Count(%u)\n", field->report_count); | |
603 | tab(n, f); seq_printf(f, "Report Offset(%u)\n", field->report_offset); | |
c080d89a | 604 | |
a635f9dd | 605 | tab(n, f); seq_printf(f, "Flags( "); |
c080d89a | 606 | j = field->flags; |
a635f9dd JK |
607 | seq_printf(f, "%s", HID_MAIN_ITEM_CONSTANT & j ? "Constant " : ""); |
608 | seq_printf(f, "%s", HID_MAIN_ITEM_VARIABLE & j ? "Variable " : "Array "); | |
609 | seq_printf(f, "%s", HID_MAIN_ITEM_RELATIVE & j ? "Relative " : "Absolute "); | |
610 | seq_printf(f, "%s", HID_MAIN_ITEM_WRAP & j ? "Wrap " : ""); | |
611 | seq_printf(f, "%s", HID_MAIN_ITEM_NONLINEAR & j ? "NonLinear " : ""); | |
612 | seq_printf(f, "%s", HID_MAIN_ITEM_NO_PREFERRED & j ? "NoPreferredState " : ""); | |
613 | seq_printf(f, "%s", HID_MAIN_ITEM_NULL_STATE & j ? "NullState " : ""); | |
614 | seq_printf(f, "%s", HID_MAIN_ITEM_VOLATILE & j ? "Volatile " : ""); | |
615 | seq_printf(f, "%s", HID_MAIN_ITEM_BUFFERED_BYTE & j ? "BufferedByte " : ""); | |
616 | seq_printf(f, ")\n"); | |
c080d89a JK |
617 | } |
618 | EXPORT_SYMBOL_GPL(hid_dump_field); | |
619 | ||
a635f9dd JK |
620 | void hid_dump_device(struct hid_device *device, struct seq_file *f) |
621 | { | |
c080d89a JK |
622 | struct hid_report_enum *report_enum; |
623 | struct hid_report *report; | |
624 | struct list_head *list; | |
625 | unsigned i,k; | |
0ce1ac3b | 626 | static const char *table[] = {"INPUT", "OUTPUT", "FEATURE"}; |
c080d89a JK |
627 | |
628 | for (i = 0; i < HID_REPORT_TYPES; i++) { | |
629 | report_enum = device->report_enum + i; | |
630 | list = report_enum->report_list.next; | |
631 | while (list != &report_enum->report_list) { | |
632 | report = (struct hid_report *) list; | |
a635f9dd JK |
633 | tab(2, f); |
634 | seq_printf(f, "%s", table[i]); | |
c080d89a | 635 | if (report->id) |
a635f9dd JK |
636 | seq_printf(f, "(%d)", report->id); |
637 | seq_printf(f, "[%s]", table[report->type]); | |
638 | seq_printf(f, "\n"); | |
c080d89a | 639 | for (k = 0; k < report->maxfield; k++) { |
a635f9dd JK |
640 | tab(4, f); |
641 | seq_printf(f, "Field(%d)\n", k); | |
642 | hid_dump_field(report->field[k], 6, f); | |
c080d89a JK |
643 | } |
644 | list = list->next; | |
645 | } | |
646 | } | |
647 | } | |
648 | EXPORT_SYMBOL_GPL(hid_dump_device); | |
649 | ||
cd667ce2 JK |
650 | /* enqueue string to 'events' ring buffer */ |
651 | void hid_debug_event(struct hid_device *hdev, char *buf) | |
652 | { | |
cd667ce2 | 653 | struct hid_debug_list *list; |
1deb9d34 | 654 | unsigned long flags; |
cd667ce2 | 655 | |
1deb9d34 | 656 | spin_lock_irqsave(&hdev->debug_list_lock, flags); |
13054abb VD |
657 | list_for_each_entry(list, &hdev->debug_list, node) |
658 | kfifo_in(&list->hid_debug_fifo, buf, strlen(buf)); | |
1deb9d34 | 659 | spin_unlock_irqrestore(&hdev->debug_list_lock, flags); |
1debfb33 CD |
660 | |
661 | wake_up_interruptible(&hdev->debug_wait); | |
cd667ce2 JK |
662 | } |
663 | EXPORT_SYMBOL_GPL(hid_debug_event); | |
664 | ||
a5f04b9d BT |
665 | void hid_dump_report(struct hid_device *hid, int type, u8 *data, |
666 | int size) | |
667 | { | |
668 | struct hid_report_enum *report_enum; | |
669 | char *buf; | |
670 | unsigned int i; | |
671 | ||
6da2ec56 | 672 | buf = kmalloc(HID_DEBUG_BUFSIZE, GFP_ATOMIC); |
a5f04b9d BT |
673 | |
674 | if (!buf) | |
675 | return; | |
676 | ||
677 | report_enum = hid->report_enum + type; | |
678 | ||
679 | /* dump the report */ | |
680 | snprintf(buf, HID_DEBUG_BUFSIZE - 1, | |
681 | "\nreport (size %u) (%snumbered) = ", size, | |
682 | report_enum->numbered ? "" : "un"); | |
683 | hid_debug_event(hid, buf); | |
684 | ||
685 | for (i = 0; i < size; i++) { | |
686 | snprintf(buf, HID_DEBUG_BUFSIZE - 1, | |
687 | " %02x", data[i]); | |
688 | hid_debug_event(hid, buf); | |
689 | } | |
690 | hid_debug_event(hid, "\n"); | |
691 | kfree(buf); | |
692 | } | |
693 | EXPORT_SYMBOL_GPL(hid_dump_report); | |
694 | ||
cd667ce2 JK |
695 | void hid_dump_input(struct hid_device *hdev, struct hid_usage *usage, __s32 value) |
696 | { | |
697 | char *buf; | |
698 | int len; | |
699 | ||
700 | buf = hid_resolv_usage(usage->hid, NULL); | |
701 | if (!buf) | |
58037eb9 | 702 | return; |
cd667ce2 JK |
703 | len = strlen(buf); |
704 | snprintf(buf + len, HID_DEBUG_BUFSIZE - len - 1, " = %d\n", value); | |
705 | ||
706 | hid_debug_event(hdev, buf); | |
707 | ||
708 | kfree(buf); | |
13054abb | 709 | wake_up_interruptible(&hdev->debug_wait); |
c080d89a JK |
710 | } |
711 | EXPORT_SYMBOL_GPL(hid_dump_input); | |
712 | ||
0ce1ac3b | 713 | static const char *events[EV_MAX + 1] = { |
c080d89a JK |
714 | [EV_SYN] = "Sync", [EV_KEY] = "Key", |
715 | [EV_REL] = "Relative", [EV_ABS] = "Absolute", | |
716 | [EV_MSC] = "Misc", [EV_LED] = "LED", | |
717 | [EV_SND] = "Sound", [EV_REP] = "Repeat", | |
718 | [EV_FF] = "ForceFeedback", [EV_PWR] = "Power", | |
719 | [EV_FF_STATUS] = "ForceFeedbackStatus", | |
720 | }; | |
721 | ||
89f536cc | 722 | static const char *syncs[3] = { |
c080d89a | 723 | [SYN_REPORT] = "Report", [SYN_CONFIG] = "Config", |
89f536cc | 724 | [SYN_MT_REPORT] = "MT Report", |
c080d89a | 725 | }; |
89f536cc | 726 | |
0ce1ac3b | 727 | static const char *keys[KEY_MAX + 1] = { |
c080d89a JK |
728 | [KEY_RESERVED] = "Reserved", [KEY_ESC] = "Esc", |
729 | [KEY_1] = "1", [KEY_2] = "2", | |
730 | [KEY_3] = "3", [KEY_4] = "4", | |
731 | [KEY_5] = "5", [KEY_6] = "6", | |
732 | [KEY_7] = "7", [KEY_8] = "8", | |
733 | [KEY_9] = "9", [KEY_0] = "0", | |
734 | [KEY_MINUS] = "Minus", [KEY_EQUAL] = "Equal", | |
735 | [KEY_BACKSPACE] = "Backspace", [KEY_TAB] = "Tab", | |
736 | [KEY_Q] = "Q", [KEY_W] = "W", | |
737 | [KEY_E] = "E", [KEY_R] = "R", | |
738 | [KEY_T] = "T", [KEY_Y] = "Y", | |
739 | [KEY_U] = "U", [KEY_I] = "I", | |
740 | [KEY_O] = "O", [KEY_P] = "P", | |
741 | [KEY_LEFTBRACE] = "LeftBrace", [KEY_RIGHTBRACE] = "RightBrace", | |
742 | [KEY_ENTER] = "Enter", [KEY_LEFTCTRL] = "LeftControl", | |
743 | [KEY_A] = "A", [KEY_S] = "S", | |
744 | [KEY_D] = "D", [KEY_F] = "F", | |
745 | [KEY_G] = "G", [KEY_H] = "H", | |
746 | [KEY_J] = "J", [KEY_K] = "K", | |
747 | [KEY_L] = "L", [KEY_SEMICOLON] = "Semicolon", | |
748 | [KEY_APOSTROPHE] = "Apostrophe", [KEY_GRAVE] = "Grave", | |
749 | [KEY_LEFTSHIFT] = "LeftShift", [KEY_BACKSLASH] = "BackSlash", | |
750 | [KEY_Z] = "Z", [KEY_X] = "X", | |
751 | [KEY_C] = "C", [KEY_V] = "V", | |
752 | [KEY_B] = "B", [KEY_N] = "N", | |
753 | [KEY_M] = "M", [KEY_COMMA] = "Comma", | |
754 | [KEY_DOT] = "Dot", [KEY_SLASH] = "Slash", | |
755 | [KEY_RIGHTSHIFT] = "RightShift", [KEY_KPASTERISK] = "KPAsterisk", | |
756 | [KEY_LEFTALT] = "LeftAlt", [KEY_SPACE] = "Space", | |
757 | [KEY_CAPSLOCK] = "CapsLock", [KEY_F1] = "F1", | |
758 | [KEY_F2] = "F2", [KEY_F3] = "F3", | |
759 | [KEY_F4] = "F4", [KEY_F5] = "F5", | |
760 | [KEY_F6] = "F6", [KEY_F7] = "F7", | |
761 | [KEY_F8] = "F8", [KEY_F9] = "F9", | |
762 | [KEY_F10] = "F10", [KEY_NUMLOCK] = "NumLock", | |
763 | [KEY_SCROLLLOCK] = "ScrollLock", [KEY_KP7] = "KP7", | |
764 | [KEY_KP8] = "KP8", [KEY_KP9] = "KP9", | |
765 | [KEY_KPMINUS] = "KPMinus", [KEY_KP4] = "KP4", | |
766 | [KEY_KP5] = "KP5", [KEY_KP6] = "KP6", | |
767 | [KEY_KPPLUS] = "KPPlus", [KEY_KP1] = "KP1", | |
768 | [KEY_KP2] = "KP2", [KEY_KP3] = "KP3", | |
769 | [KEY_KP0] = "KP0", [KEY_KPDOT] = "KPDot", | |
770 | [KEY_ZENKAKUHANKAKU] = "Zenkaku/Hankaku", [KEY_102ND] = "102nd", | |
771 | [KEY_F11] = "F11", [KEY_F12] = "F12", | |
772 | [KEY_RO] = "RO", [KEY_KATAKANA] = "Katakana", | |
773 | [KEY_HIRAGANA] = "HIRAGANA", [KEY_HENKAN] = "Henkan", | |
774 | [KEY_KATAKANAHIRAGANA] = "Katakana/Hiragana", [KEY_MUHENKAN] = "Muhenkan", | |
775 | [KEY_KPJPCOMMA] = "KPJpComma", [KEY_KPENTER] = "KPEnter", | |
776 | [KEY_RIGHTCTRL] = "RightCtrl", [KEY_KPSLASH] = "KPSlash", | |
777 | [KEY_SYSRQ] = "SysRq", [KEY_RIGHTALT] = "RightAlt", | |
778 | [KEY_LINEFEED] = "LineFeed", [KEY_HOME] = "Home", | |
779 | [KEY_UP] = "Up", [KEY_PAGEUP] = "PageUp", | |
780 | [KEY_LEFT] = "Left", [KEY_RIGHT] = "Right", | |
781 | [KEY_END] = "End", [KEY_DOWN] = "Down", | |
782 | [KEY_PAGEDOWN] = "PageDown", [KEY_INSERT] = "Insert", | |
783 | [KEY_DELETE] = "Delete", [KEY_MACRO] = "Macro", | |
784 | [KEY_MUTE] = "Mute", [KEY_VOLUMEDOWN] = "VolumeDown", | |
785 | [KEY_VOLUMEUP] = "VolumeUp", [KEY_POWER] = "Power", | |
786 | [KEY_KPEQUAL] = "KPEqual", [KEY_KPPLUSMINUS] = "KPPlusMinus", | |
787 | [KEY_PAUSE] = "Pause", [KEY_KPCOMMA] = "KPComma", | |
788 | [KEY_HANGUEL] = "Hangeul", [KEY_HANJA] = "Hanja", | |
789 | [KEY_YEN] = "Yen", [KEY_LEFTMETA] = "LeftMeta", | |
790 | [KEY_RIGHTMETA] = "RightMeta", [KEY_COMPOSE] = "Compose", | |
791 | [KEY_STOP] = "Stop", [KEY_AGAIN] = "Again", | |
792 | [KEY_PROPS] = "Props", [KEY_UNDO] = "Undo", | |
793 | [KEY_FRONT] = "Front", [KEY_COPY] = "Copy", | |
794 | [KEY_OPEN] = "Open", [KEY_PASTE] = "Paste", | |
795 | [KEY_FIND] = "Find", [KEY_CUT] = "Cut", | |
796 | [KEY_HELP] = "Help", [KEY_MENU] = "Menu", | |
797 | [KEY_CALC] = "Calc", [KEY_SETUP] = "Setup", | |
798 | [KEY_SLEEP] = "Sleep", [KEY_WAKEUP] = "WakeUp", | |
799 | [KEY_FILE] = "File", [KEY_SENDFILE] = "SendFile", | |
800 | [KEY_DELETEFILE] = "DeleteFile", [KEY_XFER] = "X-fer", | |
801 | [KEY_PROG1] = "Prog1", [KEY_PROG2] = "Prog2", | |
802 | [KEY_WWW] = "WWW", [KEY_MSDOS] = "MSDOS", | |
e92865ed | 803 | [KEY_COFFEE] = "Coffee", [KEY_ROTATE_DISPLAY] = "RotateDisplay", |
c080d89a JK |
804 | [KEY_CYCLEWINDOWS] = "CycleWindows", [KEY_MAIL] = "Mail", |
805 | [KEY_BOOKMARKS] = "Bookmarks", [KEY_COMPUTER] = "Computer", | |
806 | [KEY_BACK] = "Back", [KEY_FORWARD] = "Forward", | |
807 | [KEY_CLOSECD] = "CloseCD", [KEY_EJECTCD] = "EjectCD", | |
808 | [KEY_EJECTCLOSECD] = "EjectCloseCD", [KEY_NEXTSONG] = "NextSong", | |
809 | [KEY_PLAYPAUSE] = "PlayPause", [KEY_PREVIOUSSONG] = "PreviousSong", | |
810 | [KEY_STOPCD] = "StopCD", [KEY_RECORD] = "Record", | |
811 | [KEY_REWIND] = "Rewind", [KEY_PHONE] = "Phone", | |
812 | [KEY_ISO] = "ISOKey", [KEY_CONFIG] = "Config", | |
813 | [KEY_HOMEPAGE] = "HomePage", [KEY_REFRESH] = "Refresh", | |
814 | [KEY_EXIT] = "Exit", [KEY_MOVE] = "Move", | |
815 | [KEY_EDIT] = "Edit", [KEY_SCROLLUP] = "ScrollUp", | |
816 | [KEY_SCROLLDOWN] = "ScrollDown", [KEY_KPLEFTPAREN] = "KPLeftParenthesis", | |
817 | [KEY_KPRIGHTPAREN] = "KPRightParenthesis", [KEY_NEW] = "New", | |
818 | [KEY_REDO] = "Redo", [KEY_F13] = "F13", | |
819 | [KEY_F14] = "F14", [KEY_F15] = "F15", | |
820 | [KEY_F16] = "F16", [KEY_F17] = "F17", | |
821 | [KEY_F18] = "F18", [KEY_F19] = "F19", | |
822 | [KEY_F20] = "F20", [KEY_F21] = "F21", | |
823 | [KEY_F22] = "F22", [KEY_F23] = "F23", | |
824 | [KEY_F24] = "F24", [KEY_PLAYCD] = "PlayCD", | |
825 | [KEY_PAUSECD] = "PauseCD", [KEY_PROG3] = "Prog3", | |
826 | [KEY_PROG4] = "Prog4", [KEY_SUSPEND] = "Suspend", | |
827 | [KEY_CLOSE] = "Close", [KEY_PLAY] = "Play", | |
828 | [KEY_FASTFORWARD] = "FastForward", [KEY_BASSBOOST] = "BassBoost", | |
829 | [KEY_PRINT] = "Print", [KEY_HP] = "HP", | |
830 | [KEY_CAMERA] = "Camera", [KEY_SOUND] = "Sound", | |
831 | [KEY_QUESTION] = "Question", [KEY_EMAIL] = "Email", | |
832 | [KEY_CHAT] = "Chat", [KEY_SEARCH] = "Search", | |
833 | [KEY_CONNECT] = "Connect", [KEY_FINANCE] = "Finance", | |
834 | [KEY_SPORT] = "Sport", [KEY_SHOP] = "Shop", | |
835 | [KEY_ALTERASE] = "AlternateErase", [KEY_CANCEL] = "Cancel", | |
836 | [KEY_BRIGHTNESSDOWN] = "BrightnessDown", [KEY_BRIGHTNESSUP] = "BrightnessUp", | |
837 | [KEY_MEDIA] = "Media", [KEY_UNKNOWN] = "Unknown", | |
a443255c AO |
838 | [BTN_DPAD_UP] = "BtnDPadUp", [BTN_DPAD_DOWN] = "BtnDPadDown", |
839 | [BTN_DPAD_LEFT] = "BtnDPadLeft", [BTN_DPAD_RIGHT] = "BtnDPadRight", | |
c080d89a JK |
840 | [BTN_0] = "Btn0", [BTN_1] = "Btn1", |
841 | [BTN_2] = "Btn2", [BTN_3] = "Btn3", | |
842 | [BTN_4] = "Btn4", [BTN_5] = "Btn5", | |
843 | [BTN_6] = "Btn6", [BTN_7] = "Btn7", | |
844 | [BTN_8] = "Btn8", [BTN_9] = "Btn9", | |
845 | [BTN_LEFT] = "LeftBtn", [BTN_RIGHT] = "RightBtn", | |
846 | [BTN_MIDDLE] = "MiddleBtn", [BTN_SIDE] = "SideBtn", | |
847 | [BTN_EXTRA] = "ExtraBtn", [BTN_FORWARD] = "ForwardBtn", | |
848 | [BTN_BACK] = "BackBtn", [BTN_TASK] = "TaskBtn", | |
849 | [BTN_TRIGGER] = "Trigger", [BTN_THUMB] = "ThumbBtn", | |
850 | [BTN_THUMB2] = "ThumbBtn2", [BTN_TOP] = "TopBtn", | |
851 | [BTN_TOP2] = "TopBtn2", [BTN_PINKIE] = "PinkieBtn", | |
852 | [BTN_BASE] = "BaseBtn", [BTN_BASE2] = "BaseBtn2", | |
853 | [BTN_BASE3] = "BaseBtn3", [BTN_BASE4] = "BaseBtn4", | |
854 | [BTN_BASE5] = "BaseBtn5", [BTN_BASE6] = "BaseBtn6", | |
855 | [BTN_DEAD] = "BtnDead", [BTN_A] = "BtnA", | |
856 | [BTN_B] = "BtnB", [BTN_C] = "BtnC", | |
857 | [BTN_X] = "BtnX", [BTN_Y] = "BtnY", | |
858 | [BTN_Z] = "BtnZ", [BTN_TL] = "BtnTL", | |
859 | [BTN_TR] = "BtnTR", [BTN_TL2] = "BtnTL2", | |
860 | [BTN_TR2] = "BtnTR2", [BTN_SELECT] = "BtnSelect", | |
861 | [BTN_START] = "BtnStart", [BTN_MODE] = "BtnMode", | |
862 | [BTN_THUMBL] = "BtnThumbL", [BTN_THUMBR] = "BtnThumbR", | |
863 | [BTN_TOOL_PEN] = "ToolPen", [BTN_TOOL_RUBBER] = "ToolRubber", | |
864 | [BTN_TOOL_BRUSH] = "ToolBrush", [BTN_TOOL_PENCIL] = "ToolPencil", | |
865 | [BTN_TOOL_AIRBRUSH] = "ToolAirbrush", [BTN_TOOL_FINGER] = "ToolFinger", | |
866 | [BTN_TOOL_MOUSE] = "ToolMouse", [BTN_TOOL_LENS] = "ToolLens", | |
867 | [BTN_TOUCH] = "Touch", [BTN_STYLUS] = "Stylus", | |
868 | [BTN_STYLUS2] = "Stylus2", [BTN_TOOL_DOUBLETAP] = "ToolDoubleTap", | |
a443255c AO |
869 | [BTN_TOOL_TRIPLETAP] = "ToolTripleTap", [BTN_TOOL_QUADTAP] = "ToolQuadrupleTap", |
870 | [BTN_GEAR_DOWN] = "WheelBtn", | |
c080d89a JK |
871 | [BTN_GEAR_UP] = "Gear up", [KEY_OK] = "Ok", |
872 | [KEY_SELECT] = "Select", [KEY_GOTO] = "Goto", | |
873 | [KEY_CLEAR] = "Clear", [KEY_POWER2] = "Power2", | |
874 | [KEY_OPTION] = "Option", [KEY_INFO] = "Info", | |
875 | [KEY_TIME] = "Time", [KEY_VENDOR] = "Vendor", | |
876 | [KEY_ARCHIVE] = "Archive", [KEY_PROGRAM] = "Program", | |
877 | [KEY_CHANNEL] = "Channel", [KEY_FAVORITES] = "Favorites", | |
878 | [KEY_EPG] = "EPG", [KEY_PVR] = "PVR", | |
879 | [KEY_MHP] = "MHP", [KEY_LANGUAGE] = "Language", | |
880 | [KEY_TITLE] = "Title", [KEY_SUBTITLE] = "Subtitle", | |
881 | [KEY_ANGLE] = "Angle", [KEY_ZOOM] = "Zoom", | |
882 | [KEY_MODE] = "Mode", [KEY_KEYBOARD] = "Keyboard", | |
883 | [KEY_SCREEN] = "Screen", [KEY_PC] = "PC", | |
884 | [KEY_TV] = "TV", [KEY_TV2] = "TV2", | |
885 | [KEY_VCR] = "VCR", [KEY_VCR2] = "VCR2", | |
886 | [KEY_SAT] = "Sat", [KEY_SAT2] = "Sat2", | |
887 | [KEY_CD] = "CD", [KEY_TAPE] = "Tape", | |
888 | [KEY_RADIO] = "Radio", [KEY_TUNER] = "Tuner", | |
889 | [KEY_PLAYER] = "Player", [KEY_TEXT] = "Text", | |
890 | [KEY_DVD] = "DVD", [KEY_AUX] = "Aux", | |
891 | [KEY_MP3] = "MP3", [KEY_AUDIO] = "Audio", | |
892 | [KEY_VIDEO] = "Video", [KEY_DIRECTORY] = "Directory", | |
893 | [KEY_LIST] = "List", [KEY_MEMO] = "Memo", | |
894 | [KEY_CALENDAR] = "Calendar", [KEY_RED] = "Red", | |
895 | [KEY_GREEN] = "Green", [KEY_YELLOW] = "Yellow", | |
896 | [KEY_BLUE] = "Blue", [KEY_CHANNELUP] = "ChannelUp", | |
897 | [KEY_CHANNELDOWN] = "ChannelDown", [KEY_FIRST] = "First", | |
898 | [KEY_LAST] = "Last", [KEY_AB] = "AB", | |
899 | [KEY_NEXT] = "Next", [KEY_RESTART] = "Restart", | |
900 | [KEY_SLOW] = "Slow", [KEY_SHUFFLE] = "Shuffle", | |
901 | [KEY_BREAK] = "Break", [KEY_PREVIOUS] = "Previous", | |
902 | [KEY_DIGITS] = "Digits", [KEY_TEEN] = "TEEN", | |
903 | [KEY_TWEN] = "TWEN", [KEY_DEL_EOL] = "DeleteEOL", | |
904 | [KEY_DEL_EOS] = "DeleteEOS", [KEY_INS_LINE] = "InsertLine", | |
905 | [KEY_DEL_LINE] = "DeleteLine", | |
906 | [KEY_SEND] = "Send", [KEY_REPLY] = "Reply", | |
907 | [KEY_FORWARDMAIL] = "ForwardMail", [KEY_SAVE] = "Save", | |
1fe8736d | 908 | [KEY_DOCUMENTS] = "Documents", [KEY_SPELLCHECK] = "SpellCheck", |
e2bca074 | 909 | [KEY_LOGOFF] = "Logoff", |
c080d89a JK |
910 | [KEY_FN] = "Fn", [KEY_FN_ESC] = "Fn+ESC", |
911 | [KEY_FN_1] = "Fn+1", [KEY_FN_2] = "Fn+2", | |
912 | [KEY_FN_B] = "Fn+B", [KEY_FN_D] = "Fn+D", | |
913 | [KEY_FN_E] = "Fn+E", [KEY_FN_F] = "Fn+F", | |
914 | [KEY_FN_S] = "Fn+S", | |
915 | [KEY_FN_F1] = "Fn+F1", [KEY_FN_F2] = "Fn+F2", | |
916 | [KEY_FN_F3] = "Fn+F3", [KEY_FN_F4] = "Fn+F4", | |
917 | [KEY_FN_F5] = "Fn+F5", [KEY_FN_F6] = "Fn+F6", | |
918 | [KEY_FN_F7] = "Fn+F7", [KEY_FN_F8] = "Fn+F8", | |
919 | [KEY_FN_F9] = "Fn+F9", [KEY_FN_F10] = "Fn+F10", | |
920 | [KEY_FN_F11] = "Fn+F11", [KEY_FN_F12] = "Fn+F12", | |
921 | [KEY_KBDILLUMTOGGLE] = "KbdIlluminationToggle", | |
922 | [KEY_KBDILLUMDOWN] = "KbdIlluminationDown", | |
923 | [KEY_KBDILLUMUP] = "KbdIlluminationUp", | |
924 | [KEY_SWITCHVIDEOMODE] = "SwitchVideoMode", | |
f362e690 OG |
925 | [KEY_BUTTONCONFIG] = "ButtonConfig", |
926 | [KEY_TASKMANAGER] = "TaskManager", | |
927 | [KEY_JOURNAL] = "Journal", | |
928 | [KEY_CONTROLPANEL] = "ControlPanel", | |
929 | [KEY_APPSELECT] = "AppSelect", | |
930 | [KEY_SCREENSAVER] = "ScreenSaver", | |
931 | [KEY_VOICECOMMAND] = "VoiceCommand", | |
932 | [KEY_BRIGHTNESS_MIN] = "BrightnessMin", | |
933 | [KEY_BRIGHTNESS_MAX] = "BrightnessMax", | |
934 | [KEY_BRIGHTNESS_AUTO] = "BrightnessAuto", | |
f974008f OG |
935 | [KEY_KBDINPUTASSIST_PREV] = "KbdInputAssistPrev", |
936 | [KEY_KBDINPUTASSIST_NEXT] = "KbdInputAssistNext", | |
937 | [KEY_KBDINPUTASSIST_PREVGROUP] = "KbdInputAssistPrevGroup", | |
938 | [KEY_KBDINPUTASSIST_NEXTGROUP] = "KbdInputAssistNextGroup", | |
939 | [KEY_KBDINPUTASSIST_ACCEPT] = "KbdInputAssistAccept", | |
940 | [KEY_KBDINPUTASSIST_CANCEL] = "KbdInputAssistCancel", | |
c080d89a JK |
941 | }; |
942 | ||
0ce1ac3b | 943 | static const char *relatives[REL_MAX + 1] = { |
c080d89a JK |
944 | [REL_X] = "X", [REL_Y] = "Y", |
945 | [REL_Z] = "Z", [REL_RX] = "Rx", | |
946 | [REL_RY] = "Ry", [REL_RZ] = "Rz", | |
947 | [REL_HWHEEL] = "HWheel", [REL_DIAL] = "Dial", | |
948 | [REL_WHEEL] = "Wheel", [REL_MISC] = "Misc", | |
949 | }; | |
950 | ||
81c2a3ba | 951 | static const char *absolutes[ABS_CNT] = { |
c080d89a JK |
952 | [ABS_X] = "X", [ABS_Y] = "Y", |
953 | [ABS_Z] = "Z", [ABS_RX] = "Rx", | |
954 | [ABS_RY] = "Ry", [ABS_RZ] = "Rz", | |
955 | [ABS_THROTTLE] = "Throttle", [ABS_RUDDER] = "Rudder", | |
956 | [ABS_WHEEL] = "Wheel", [ABS_GAS] = "Gas", | |
957 | [ABS_BRAKE] = "Brake", [ABS_HAT0X] = "Hat0X", | |
958 | [ABS_HAT0Y] = "Hat0Y", [ABS_HAT1X] = "Hat1X", | |
959 | [ABS_HAT1Y] = "Hat1Y", [ABS_HAT2X] = "Hat2X", | |
960 | [ABS_HAT2Y] = "Hat2Y", [ABS_HAT3X] = "Hat3X", | |
961 | [ABS_HAT3Y] = "Hat 3Y", [ABS_PRESSURE] = "Pressure", | |
962 | [ABS_DISTANCE] = "Distance", [ABS_TILT_X] = "XTilt", | |
89f536cc | 963 | [ABS_TILT_Y] = "YTilt", [ABS_TOOL_WIDTH] = "ToolWidth", |
c080d89a | 964 | [ABS_VOLUME] = "Volume", [ABS_MISC] = "Misc", |
89f536cc SC |
965 | [ABS_MT_TOUCH_MAJOR] = "MTMajor", |
966 | [ABS_MT_TOUCH_MINOR] = "MTMinor", | |
967 | [ABS_MT_WIDTH_MAJOR] = "MTMajorW", | |
968 | [ABS_MT_WIDTH_MINOR] = "MTMinorW", | |
969 | [ABS_MT_ORIENTATION] = "MTOrientation", | |
970 | [ABS_MT_POSITION_X] = "MTPositionX", | |
971 | [ABS_MT_POSITION_Y] = "MTPositionY", | |
972 | [ABS_MT_TOOL_TYPE] = "MTToolType", | |
973 | [ABS_MT_BLOB_ID] = "MTBlobID", | |
c080d89a JK |
974 | }; |
975 | ||
0ce1ac3b | 976 | static const char *misc[MSC_MAX + 1] = { |
c080d89a JK |
977 | [MSC_SERIAL] = "Serial", [MSC_PULSELED] = "Pulseled", |
978 | [MSC_GESTURE] = "Gesture", [MSC_RAW] = "RawData" | |
979 | }; | |
980 | ||
0ce1ac3b | 981 | static const char *leds[LED_MAX + 1] = { |
c080d89a JK |
982 | [LED_NUML] = "NumLock", [LED_CAPSL] = "CapsLock", |
983 | [LED_SCROLLL] = "ScrollLock", [LED_COMPOSE] = "Compose", | |
984 | [LED_KANA] = "Kana", [LED_SLEEP] = "Sleep", | |
985 | [LED_SUSPEND] = "Suspend", [LED_MUTE] = "Mute", | |
986 | [LED_MISC] = "Misc", | |
987 | }; | |
988 | ||
0ce1ac3b | 989 | static const char *repeats[REP_MAX + 1] = { |
c080d89a JK |
990 | [REP_DELAY] = "Delay", [REP_PERIOD] = "Period" |
991 | }; | |
992 | ||
0ce1ac3b | 993 | static const char *sounds[SND_MAX + 1] = { |
c080d89a JK |
994 | [SND_CLICK] = "Click", [SND_BELL] = "Bell", |
995 | [SND_TONE] = "Tone" | |
996 | }; | |
997 | ||
0ce1ac3b | 998 | static const char **names[EV_MAX + 1] = { |
c080d89a JK |
999 | [EV_SYN] = syncs, [EV_KEY] = keys, |
1000 | [EV_REL] = relatives, [EV_ABS] = absolutes, | |
1001 | [EV_MSC] = misc, [EV_LED] = leds, | |
1002 | [EV_SND] = sounds, [EV_REP] = repeats, | |
1003 | }; | |
1004 | ||
62e62da8 HS |
1005 | static void hid_resolv_event(__u8 type, __u16 code, struct seq_file *f) |
1006 | { | |
a635f9dd | 1007 | seq_printf(f, "%s.%s", events[type] ? events[type] : "?", |
c080d89a JK |
1008 | names[type] ? (names[type][code] ? names[type][code] : "?") : "?"); |
1009 | } | |
a635f9dd | 1010 | |
62e62da8 | 1011 | static void hid_dump_input_mapping(struct hid_device *hid, struct seq_file *f) |
a635f9dd JK |
1012 | { |
1013 | int i, j, k; | |
1014 | struct hid_report *report; | |
1015 | struct hid_usage *usage; | |
1016 | ||
1017 | for (k = HID_INPUT_REPORT; k <= HID_OUTPUT_REPORT; k++) { | |
1018 | list_for_each_entry(report, &hid->report_enum[k].report_list, list) { | |
1019 | for (i = 0; i < report->maxfield; i++) { | |
1020 | for ( j = 0; j < report->field[i]->maxusage; j++) { | |
1021 | usage = report->field[i]->usage + j; | |
1022 | hid_resolv_usage(usage->hid, f); | |
1023 | seq_printf(f, " ---> "); | |
1024 | hid_resolv_event(usage->type, usage->code, f); | |
1025 | seq_printf(f, "\n"); | |
1026 | } | |
1027 | } | |
1028 | } | |
1029 | } | |
1030 | ||
1031 | } | |
1032 | ||
1033 | static int hid_debug_rdesc_show(struct seq_file *f, void *p) | |
1034 | { | |
1035 | struct hid_device *hdev = f->private; | |
8db089d1 HR |
1036 | const __u8 *rdesc = hdev->rdesc; |
1037 | unsigned rsize = hdev->rsize; | |
a635f9dd JK |
1038 | int i; |
1039 | ||
8db089d1 HR |
1040 | if (!rdesc) { |
1041 | rdesc = hdev->dev_rdesc; | |
1042 | rsize = hdev->dev_rsize; | |
1043 | } | |
1044 | ||
a635f9dd | 1045 | /* dump HID report descriptor */ |
8db089d1 HR |
1046 | for (i = 0; i < rsize; i++) |
1047 | seq_printf(f, "%02x ", rdesc[i]); | |
a635f9dd JK |
1048 | seq_printf(f, "\n\n"); |
1049 | ||
1050 | /* dump parsed data and input mappings */ | |
cef0d494 HB |
1051 | if (down_interruptible(&hdev->driver_input_lock)) |
1052 | return 0; | |
1053 | ||
a635f9dd JK |
1054 | hid_dump_device(hdev, f); |
1055 | seq_printf(f, "\n"); | |
1056 | hid_dump_input_mapping(hdev, f); | |
1057 | ||
cef0d494 HB |
1058 | up(&hdev->driver_input_lock); |
1059 | ||
a635f9dd JK |
1060 | return 0; |
1061 | } | |
1062 | ||
cd667ce2 JK |
1063 | static int hid_debug_events_open(struct inode *inode, struct file *file) |
1064 | { | |
1065 | int err = 0; | |
1066 | struct hid_debug_list *list; | |
1deb9d34 | 1067 | unsigned long flags; |
cd667ce2 JK |
1068 | |
1069 | if (!(list = kzalloc(sizeof(struct hid_debug_list), GFP_KERNEL))) { | |
1070 | err = -ENOMEM; | |
1071 | goto out; | |
1072 | } | |
1073 | ||
13054abb VD |
1074 | err = kfifo_alloc(&list->hid_debug_fifo, HID_DEBUG_FIFOSIZE, GFP_KERNEL); |
1075 | if (err) { | |
a809dda0 | 1076 | kfree(list); |
cd667ce2 JK |
1077 | goto out; |
1078 | } | |
1079 | list->hdev = (struct hid_device *) inode->i_private; | |
1080 | file->private_data = list; | |
1081 | mutex_init(&list->read_mutex); | |
1082 | ||
1deb9d34 | 1083 | spin_lock_irqsave(&list->hdev->debug_list_lock, flags); |
cd667ce2 | 1084 | list_add_tail(&list->node, &list->hdev->debug_list); |
1deb9d34 | 1085 | spin_unlock_irqrestore(&list->hdev->debug_list_lock, flags); |
cd667ce2 JK |
1086 | |
1087 | out: | |
1088 | return err; | |
1089 | } | |
1090 | ||
1091 | static ssize_t hid_debug_events_read(struct file *file, char __user *buffer, | |
1092 | size_t count, loff_t *ppos) | |
1093 | { | |
1094 | struct hid_debug_list *list = file->private_data; | |
13054abb | 1095 | int ret = 0, copied; |
cd667ce2 JK |
1096 | DECLARE_WAITQUEUE(wait, current); |
1097 | ||
ca9fe158 | 1098 | mutex_lock(&list->read_mutex); |
13054abb VD |
1099 | if (kfifo_is_empty(&list->hid_debug_fifo)) { |
1100 | add_wait_queue(&list->hdev->debug_wait, &wait); | |
1101 | set_current_state(TASK_INTERRUPTIBLE); | |
1102 | ||
1103 | while (kfifo_is_empty(&list->hid_debug_fifo)) { | |
13054abb VD |
1104 | if (signal_pending(current)) { |
1105 | ret = -ERESTARTSYS; | |
1106 | break; | |
1107 | } | |
cd667ce2 | 1108 | |
13054abb VD |
1109 | /* if list->hdev is NULL we cannot remove_wait_queue(). |
1110 | * if list->hdev->debug is 0 then hid_debug_unregister() | |
1111 | * was already called and list->hdev is being destroyed. | |
1112 | * if we add remove_wait_queue() here we can hit a race. | |
1113 | */ | |
1114 | if (!list->hdev || !list->hdev->debug) { | |
1115 | ret = -EIO; | |
1116 | set_current_state(TASK_RUNNING); | |
1117 | goto out; | |
cd667ce2 JK |
1118 | } |
1119 | ||
c27e0882 LG |
1120 | if (file->f_flags & O_NONBLOCK) { |
1121 | ret = -EAGAIN; | |
1122 | break; | |
1123 | } | |
1124 | ||
13054abb VD |
1125 | /* allow O_NONBLOCK from other threads */ |
1126 | mutex_unlock(&list->read_mutex); | |
1127 | schedule(); | |
1128 | mutex_lock(&list->read_mutex); | |
1129 | set_current_state(TASK_INTERRUPTIBLE); | |
cd667ce2 JK |
1130 | } |
1131 | ||
13054abb VD |
1132 | __set_current_state(TASK_RUNNING); |
1133 | remove_wait_queue(&list->hdev->debug_wait, &wait); | |
cd667ce2 | 1134 | |
13054abb | 1135 | if (ret) |
cd667ce2 | 1136 | goto out; |
cd667ce2 | 1137 | } |
13054abb VD |
1138 | |
1139 | /* pass the fifo content to userspace, locking is not needed with only | |
1140 | * one concurrent reader and one concurrent writer | |
1141 | */ | |
1142 | ret = kfifo_to_user(&list->hid_debug_fifo, buffer, count, &copied); | |
1143 | if (ret) | |
1144 | goto out; | |
1145 | ret = copied; | |
cd667ce2 JK |
1146 | out: |
1147 | mutex_unlock(&list->read_mutex); | |
1148 | return ret; | |
1149 | } | |
1150 | ||
afc9a42b | 1151 | static __poll_t hid_debug_events_poll(struct file *file, poll_table *wait) |
cd667ce2 JK |
1152 | { |
1153 | struct hid_debug_list *list = file->private_data; | |
1154 | ||
1155 | poll_wait(file, &list->hdev->debug_wait, wait); | |
13054abb | 1156 | if (!kfifo_is_empty(&list->hid_debug_fifo)) |
a9a08845 | 1157 | return EPOLLIN | EPOLLRDNORM; |
cd667ce2 | 1158 | if (!list->hdev->debug) |
a9a08845 | 1159 | return EPOLLERR | EPOLLHUP; |
cd667ce2 JK |
1160 | return 0; |
1161 | } | |
1162 | ||
1163 | static int hid_debug_events_release(struct inode *inode, struct file *file) | |
1164 | { | |
1165 | struct hid_debug_list *list = file->private_data; | |
1deb9d34 | 1166 | unsigned long flags; |
cd667ce2 | 1167 | |
1deb9d34 | 1168 | spin_lock_irqsave(&list->hdev->debug_list_lock, flags); |
cd667ce2 | 1169 | list_del(&list->node); |
1deb9d34 | 1170 | spin_unlock_irqrestore(&list->hdev->debug_list_lock, flags); |
13054abb | 1171 | kfifo_free(&list->hid_debug_fifo); |
cd667ce2 JK |
1172 | kfree(list); |
1173 | ||
1174 | return 0; | |
1175 | } | |
1176 | ||
8c32d47b | 1177 | DEFINE_SHOW_ATTRIBUTE(hid_debug_rdesc); |
a635f9dd | 1178 | |
cd667ce2 JK |
1179 | static const struct file_operations hid_debug_events_fops = { |
1180 | .owner = THIS_MODULE, | |
1181 | .open = hid_debug_events_open, | |
1182 | .read = hid_debug_events_read, | |
1183 | .poll = hid_debug_events_poll, | |
1184 | .release = hid_debug_events_release, | |
6038f373 | 1185 | .llseek = noop_llseek, |
cd667ce2 JK |
1186 | }; |
1187 | ||
1188 | ||
a635f9dd JK |
1189 | void hid_debug_register(struct hid_device *hdev, const char *name) |
1190 | { | |
1191 | hdev->debug_dir = debugfs_create_dir(name, hid_debug_root); | |
1192 | hdev->debug_rdesc = debugfs_create_file("rdesc", 0400, | |
1193 | hdev->debug_dir, hdev, &hid_debug_rdesc_fops); | |
cd667ce2 JK |
1194 | hdev->debug_events = debugfs_create_file("events", 0400, |
1195 | hdev->debug_dir, hdev, &hid_debug_events_fops); | |
1196 | hdev->debug = 1; | |
a635f9dd JK |
1197 | } |
1198 | ||
1199 | void hid_debug_unregister(struct hid_device *hdev) | |
1200 | { | |
cd667ce2 JK |
1201 | hdev->debug = 0; |
1202 | wake_up_interruptible(&hdev->debug_wait); | |
a635f9dd | 1203 | debugfs_remove(hdev->debug_rdesc); |
cd667ce2 | 1204 | debugfs_remove(hdev->debug_events); |
a635f9dd JK |
1205 | debugfs_remove(hdev->debug_dir); |
1206 | } | |
1207 | ||
1208 | void hid_debug_init(void) | |
1209 | { | |
1210 | hid_debug_root = debugfs_create_dir("hid", NULL); | |
1211 | } | |
1212 | ||
1213 | void hid_debug_exit(void) | |
1214 | { | |
1215 | debugfs_remove_recursive(hid_debug_root); | |
1216 | } |