| /* |
| * (c) 1999 Andreas Gal <gal@cs.uni-magdeburg.de> |
| * (c) 2000-2001 Vojtech Pavlik <vojtech@ucw.cz> |
| * (c) 2007-2009 Jiri Kosina |
| * |
| * HID debugging support |
| */ |
| |
| /* |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| * |
| * Should you need to contact me, the author, you can do so either by |
| * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail: |
| * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic |
| */ |
| |
| #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
| |
| #include <linux/debugfs.h> |
| #include <linux/seq_file.h> |
| #include <linux/sched.h> |
| #include <linux/slab.h> |
| #include <linux/uaccess.h> |
| #include <linux/poll.h> |
| |
| #include <linux/hid.h> |
| #include <linux/hid-debug.h> |
| |
| static struct dentry *hid_debug_root; |
| |
| struct hid_usage_entry { |
| unsigned page; |
| unsigned usage; |
| const char *description; |
| }; |
| |
| static const struct hid_usage_entry hid_usage_table[] = { |
| { 0, 0, "Undefined" }, |
| { 1, 0, "GenericDesktop" }, |
| {0, 0x01, "Pointer"}, |
| {0, 0x02, "Mouse"}, |
| {0, 0x04, "Joystick"}, |
| {0, 0x05, "GamePad"}, |
| {0, 0x06, "Keyboard"}, |
| {0, 0x07, "Keypad"}, |
| {0, 0x08, "MultiAxis"}, |
| {0, 0x30, "X"}, |
| {0, 0x31, "Y"}, |
| {0, 0x32, "Z"}, |
| {0, 0x33, "Rx"}, |
| {0, 0x34, "Ry"}, |
| {0, 0x35, "Rz"}, |
| {0, 0x36, "Slider"}, |
| {0, 0x37, "Dial"}, |
| {0, 0x38, "Wheel"}, |
| {0, 0x39, "HatSwitch"}, |
| {0, 0x3a, "CountedBuffer"}, |
| {0, 0x3b, "ByteCount"}, |
| {0, 0x3c, "MotionWakeup"}, |
| {0, 0x3d, "Start"}, |
| {0, 0x3e, "Select"}, |
| {0, 0x40, "Vx"}, |
| {0, 0x41, "Vy"}, |
| {0, 0x42, "Vz"}, |
| {0, 0x43, "Vbrx"}, |
| {0, 0x44, "Vbry"}, |
| {0, 0x45, "Vbrz"}, |
| {0, 0x46, "Vno"}, |
| {0, 0x80, "SystemControl"}, |
| {0, 0x81, "SystemPowerDown"}, |
| {0, 0x82, "SystemSleep"}, |
| {0, 0x83, "SystemWakeUp"}, |
| {0, 0x84, "SystemContextMenu"}, |
| {0, 0x85, "SystemMainMenu"}, |
| {0, 0x86, "SystemAppMenu"}, |
| {0, 0x87, "SystemMenuHelp"}, |
| {0, 0x88, "SystemMenuExit"}, |
| {0, 0x89, "SystemMenuSelect"}, |
| {0, 0x8a, "SystemMenuRight"}, |
| {0, 0x8b, "SystemMenuLeft"}, |
| {0, 0x8c, "SystemMenuUp"}, |
| {0, 0x8d, "SystemMenuDown"}, |
| {0, 0x90, "D-PadUp"}, |
| {0, 0x91, "D-PadDown"}, |
| {0, 0x92, "D-PadRight"}, |
| {0, 0x93, "D-PadLeft"}, |
| { 2, 0, "Simulation" }, |
| {0, 0xb0, "Aileron"}, |
| {0, 0xb1, "AileronTrim"}, |
| {0, 0xb2, "Anti-Torque"}, |
| {0, 0xb3, "Autopilot"}, |
| {0, 0xb4, "Chaff"}, |
| {0, 0xb5, "Collective"}, |
| {0, 0xb6, "DiveBrake"}, |
| {0, 0xb7, "ElectronicCountermeasures"}, |
| {0, 0xb8, "Elevator"}, |
| {0, 0xb9, "ElevatorTrim"}, |
| {0, 0xba, "Rudder"}, |
| {0, 0xbb, "Throttle"}, |
| {0, 0xbc, "FlightCommunications"}, |
| {0, 0xbd, "FlareRelease"}, |
| {0, 0xbe, "LandingGear"}, |
| {0, 0xbf, "ToeBrake"}, |
| { 7, 0, "Keyboard" }, |
| { 8, 0, "LED" }, |
| {0, 0x01, "NumLock"}, |
| {0, 0x02, "CapsLock"}, |
| {0, 0x03, "ScrollLock"}, |
| {0, 0x04, "Compose"}, |
| {0, 0x05, "Kana"}, |
| {0, 0x4b, "GenericIndicator"}, |
| { 9, 0, "Button" }, |
| { 10, 0, "Ordinal" }, |
| { 12, 0, "Consumer" }, |
| {0, 0x238, "HorizontalWheel"}, |
| { 13, 0, "Digitizers" }, |
| {0, 0x01, "Digitizer"}, |
| {0, 0x02, "Pen"}, |
| {0, 0x03, "LightPen"}, |
| {0, 0x04, "TouchScreen"}, |
| {0, 0x05, "TouchPad"}, |
| {0, 0x20, "Stylus"}, |
| {0, 0x21, "Puck"}, |
| {0, 0x22, "Finger"}, |
| {0, 0x30, "TipPressure"}, |
| {0, 0x31, "BarrelPressure"}, |
| {0, 0x32, "InRange"}, |
| {0, 0x33, "Touch"}, |
| {0, 0x34, "UnTouch"}, |
| {0, 0x35, "Tap"}, |
| {0, 0x39, "TabletFunctionKey"}, |
| {0, 0x3a, "ProgramChangeKey"}, |
| {0, 0x3c, "Invert"}, |
| {0, 0x42, "TipSwitch"}, |
| {0, 0x43, "SecondaryTipSwitch"}, |
| {0, 0x44, "BarrelSwitch"}, |
| {0, 0x45, "Eraser"}, |
| {0, 0x46, "TabletPick"}, |
| {0, 0x47, "Confidence"}, |
| {0, 0x48, "Width"}, |
| {0, 0x49, "Height"}, |
| {0, 0x51, "ContactID"}, |
| {0, 0x52, "InputMode"}, |
| {0, 0x53, "DeviceIndex"}, |
| {0, 0x54, "ContactCount"}, |
| {0, 0x55, "ContactMaximumNumber"}, |
| { 15, 0, "PhysicalInterfaceDevice" }, |
| {0, 0x00, "Undefined"}, |
| {0, 0x01, "Physical_Interface_Device"}, |
| {0, 0x20, "Normal"}, |
| {0, 0x21, "Set_Effect_Report"}, |
| {0, 0x22, "Effect_Block_Index"}, |
| {0, 0x23, "Parameter_Block_Offset"}, |
| {0, 0x24, "ROM_Flag"}, |
| {0, 0x25, "Effect_Type"}, |
| {0, 0x26, "ET_Constant_Force"}, |
| {0, 0x27, "ET_Ramp"}, |
| {0, 0x28, "ET_Custom_Force_Data"}, |
| {0, 0x30, "ET_Square"}, |
| {0, 0x31, "ET_Sine"}, |
| {0, 0x32, "ET_Triangle"}, |
| {0, 0x33, "ET_Sawtooth_Up"}, |
| {0, 0x34, "ET_Sawtooth_Down"}, |
| {0, 0x40, "ET_Spring"}, |
| {0, 0x41, "ET_Damper"}, |
| {0, 0x42, "ET_Inertia"}, |
| {0, 0x43, "ET_Friction"}, |
| {0, 0x50, "Duration"}, |
| {0, 0x51, "Sample_Period"}, |
| {0, 0x52, "Gain"}, |
| {0, 0x53, "Trigger_Button"}, |
| {0, 0x54, "Trigger_Repeat_Interval"}, |
| {0, 0x55, "Axes_Enable"}, |
| {0, 0x56, "Direction_Enable"}, |
| {0, 0x57, "Direction"}, |
| {0, 0x58, "Type_Specific_Block_Offset"}, |
| {0, 0x59, "Block_Type"}, |
| {0, 0x5A, "Set_Envelope_Report"}, |
| {0, 0x5B, "Attack_Level"}, |
| {0, 0x5C, "Attack_Time"}, |
| {0, 0x5D, "Fade_Level"}, |
| {0, 0x5E, "Fade_Time"}, |
| {0, 0x5F, "Set_Condition_Report"}, |
| {0, 0x60, "CP_Offset"}, |
| {0, 0x61, "Positive_Coefficient"}, |
| {0, 0x62, "Negative_Coefficient"}, |
| {0, 0x63, "Positive_Saturation"}, |
| {0, 0x64, "Negative_Saturation"}, |
| {0, 0x65, "Dead_Band"}, |
| {0, 0x66, "Download_Force_Sample"}, |
| {0, 0x67, "Isoch_Custom_Force_Enable"}, |
| {0, 0x68, "Custom_Force_Data_Report"}, |
| {0, 0x69, "Custom_Force_Data"}, |
| {0, 0x6A, "Custom_Force_Vendor_Defined_Data"}, |
| {0, 0x6B, "Set_Custom_Force_Report"}, |
| {0, 0x6C, "Custom_Force_Data_Offset"}, |
| {0, 0x6D, "Sample_Count"}, |
| {0, 0x6E, "Set_Periodic_Report"}, |
| {0, 0x6F, "Offset"}, |
| {0, 0x70, "Magnitude"}, |
| {0, 0x71, "Phase"}, |
| {0, 0x72, "Period"}, |
| {0, 0x73, "Set_Constant_Force_Report"}, |
| {0, 0x74, "Set_Ramp_Force_Report"}, |
| {0, 0x75, "Ramp_Start"}, |
| {0, 0x76, "Ramp_End"}, |
| {0, 0x77, "Effect_Operation_Report"}, |
| {0, 0x78, "Effect_Operation"}, |
| {0, 0x79, "Op_Effect_Start"}, |
| {0, 0x7A, "Op_Effect_Start_Solo"}, |
| {0, 0x7B, "Op_Effect_Stop"}, |
| {0, 0x7C, "Loop_Count"}, |
| {0, 0x7D, "Device_Gain_Report"}, |
| {0, 0x7E, "Device_Gain"}, |
| {0, 0x7F, "PID_Pool_Report"}, |
| {0, 0x80, "RAM_Pool_Size"}, |
| {0, 0x81, "ROM_Pool_Size"}, |
| {0, 0x82, "ROM_Effect_Block_Count"}, |
| {0, 0x83, "Simultaneous_Effects_Max"}, |
| {0, 0x84, "Pool_Alignment"}, |
| {0, 0x85, "PID_Pool_Move_Report"}, |
| {0, 0x86, "Move_Source"}, |
| {0, 0x87, "Move_Destination"}, |
| {0, 0x88, "Move_Length"}, |
| {0, 0x89, "PID_Block_Load_Report"}, |
| {0, 0x8B, "Block_Load_Status"}, |
| {0, 0x8C, "Block_Load_Success"}, |
| {0, 0x8D, "Block_Load_Full"}, |
| {0, 0x8E, "Block_Load_Error"}, |
| {0, 0x8F, "Block_Handle"}, |
| {0, 0x90, "PID_Block_Free_Report"}, |
| {0, 0x91, "Type_Specific_Block_Handle"}, |
| {0, 0x92, "PID_State_Report"}, |
| {0, 0x94, "Effect_Playing"}, |
| {0, 0x95, "PID_Device_Control_Report"}, |
| {0, 0x96, "PID_Device_Control"}, |
| {0, 0x97, "DC_Enable_Actuators"}, |
| {0, 0x98, "DC_Disable_Actuators"}, |
| {0, 0x99, "DC_Stop_All_Effects"}, |
| {0, 0x9A, "DC_Device_Reset"}, |
| {0, 0x9B, "DC_Device_Pause"}, |
| {0, 0x9C, "DC_Device_Continue"}, |
| {0, 0x9F, "Device_Paused"}, |
| {0, 0xA0, "Actuators_Enabled"}, |
| {0, 0xA4, "Safety_Switch"}, |
| {0, 0xA5, "Actuator_Override_Switch"}, |
| {0, 0xA6, "Actuator_Power"}, |
| {0, 0xA7, "Start_Delay"}, |
| {0, 0xA8, "Parameter_Block_Size"}, |
| {0, 0xA9, "Device_Managed_Pool"}, |
| {0, 0xAA, "Shared_Parameter_Blocks"}, |
| {0, 0xAB, "Create_New_Effect_Report"}, |
| {0, 0xAC, "RAM_Pool_Available"}, |
| { 0x84, 0, "Power Device" }, |
| { 0x84, 0x02, "PresentStatus" }, |
| { 0x84, 0x03, "ChangeStatus" }, |
| { 0x84, 0x04, "UPS" }, |
| { 0x84, 0x05, "PowerSupply" }, |
| { 0x84, 0x10, "BatterySystem" }, |
| { 0x84, 0x11, "BatterySystemID" }, |
| { 0x84, 0x12, "Battery" }, |
| { 0x84, 0x13, "BatteryID" }, |
| { 0x84, 0x14, "Charger" }, |
| { 0x84, 0x15, "ChargerID" }, |
| { 0x84, 0x16, "PowerConverter" }, |
| { 0x84, 0x17, "PowerConverterID" }, |
| { 0x84, 0x18, "OutletSystem" }, |
| { 0x84, 0x19, "OutletSystemID" }, |
| { 0x84, 0x1a, "Input" }, |
| { 0x84, 0x1b, "InputID" }, |
| { 0x84, 0x1c, "Output" }, |
| { 0x84, 0x1d, "OutputID" }, |
| { 0x84, 0x1e, "Flow" }, |
| { 0x84, 0x1f, "FlowID" }, |
| { 0x84, 0x20, "Outlet" }, |
| { 0x84, 0x21, "OutletID" }, |
| { 0x84, 0x22, "Gang" }, |
| { 0x84, 0x24, "PowerSummary" }, |
| { 0x84, 0x25, "PowerSummaryID" }, |
| { 0x84, 0x30, "Voltage" }, |
| { 0x84, 0x31, "Current" }, |
| { 0x84, 0x32, "Frequency" }, |
| { 0x84, 0x33, "ApparentPower" }, |
| { 0x84, 0x35, "PercentLoad" }, |
| { 0x84, 0x40, "ConfigVoltage" }, |
| { 0x84, 0x41, "ConfigCurrent" }, |
| { 0x84, 0x43, "ConfigApparentPower" }, |
| { 0x84, 0x53, "LowVoltageTransfer" }, |
| { 0x84, 0x54, "HighVoltageTransfer" }, |
| { 0x84, 0x56, "DelayBeforeStartup" }, |
| { 0x84, 0x57, "DelayBeforeShutdown" }, |
| { 0x84, 0x58, "Test" }, |
| { 0x84, 0x5a, "AudibleAlarmControl" }, |
| { 0x84, 0x60, "Present" }, |
| { 0x84, 0x61, "Good" }, |
| { 0x84, 0x62, "InternalFailure" }, |
| { 0x84, 0x65, "Overload" }, |
| { 0x84, 0x66, "OverCharged" }, |
| { 0x84, 0x67, "OverTemperature" }, |
| { 0x84, 0x68, "ShutdownRequested" }, |
| { 0x84, 0x69, "ShutdownImminent" }, |
| { 0x84, 0x6b, "SwitchOn/Off" }, |
| { 0x84, 0x6c, "Switchable" }, |
| { 0x84, 0x6d, "Used" }, |
| { 0x84, 0x6e, "Boost" }, |
| { 0x84, 0x73, "CommunicationLost" }, |
| { 0x84, 0xfd, "iManufacturer" }, |
| { 0x84, 0xfe, "iProduct" }, |
| { 0x84, 0xff, "iSerialNumber" }, |
| { 0x85, 0, "Battery System" }, |
| { 0x85, 0x01, "SMBBatteryMode" }, |
| { 0x85, 0x02, "SMBBatteryStatus" }, |
| { 0x85, 0x03, "SMBAlarmWarning" }, |
| { 0x85, 0x04, "SMBChargerMode" }, |
| { 0x85, 0x05, "SMBChargerStatus" }, |
| { 0x85, 0x06, "SMBChargerSpecInfo" }, |
| { 0x85, 0x07, "SMBSelectorState" }, |
| { 0x85, 0x08, "SMBSelectorPresets" }, |
| { 0x85, 0x09, "SMBSelectorInfo" }, |
| { 0x85, 0x29, "RemainingCapacityLimit" }, |
| { 0x85, 0x2c, "CapacityMode" }, |
| { 0x85, 0x42, "BelowRemainingCapacityLimit" }, |
| { 0x85, 0x44, "Charging" }, |
| { 0x85, 0x45, "Discharging" }, |
| { 0x85, 0x4b, "NeedReplacement" }, |
| { 0x85, 0x66, "RemainingCapacity" }, |
| { 0x85, 0x68, "RunTimeToEmpty" }, |
| { 0x85, 0x6a, "AverageTimeToFull" }, |
| { 0x85, 0x83, "DesignCapacity" }, |
| { 0x85, 0x85, "ManufacturerDate" }, |
| { 0x85, 0x89, "iDeviceChemistry" }, |
| { 0x85, 0x8b, "Rechargeable" }, |
| { 0x85, 0x8f, "iOEMInformation" }, |
| { 0x85, 0x8d, "CapacityGranularity1" }, |
| { 0x85, 0xd0, "ACPresent" }, |
| /* pages 0xff00 to 0xffff are vendor-specific */ |
| { 0xffff, 0, "Vendor-specific-FF" }, |
| { 0, 0, NULL } |
| }; |
| |
| /* Either output directly into simple seq_file, or (if f == NULL) |
| * allocate a separate buffer that will then be passed to the 'events' |
| * ringbuffer. |
| * |
| * This is because these functions can be called both for "one-shot" |
| * "rdesc" while resolving, or for blocking "events". |
| * |
| * This holds both for resolv_usage_page() and hid_resolv_usage(). |
| */ |
| static char *resolv_usage_page(unsigned page, struct seq_file *f) { |
| const struct hid_usage_entry *p; |
| char *buf = NULL; |
| |
| if (!f) { |
| buf = kzalloc(sizeof(char) * HID_DEBUG_BUFSIZE, GFP_ATOMIC); |
| if (!buf) |
| return ERR_PTR(-ENOMEM); |
| } |
| |
| for (p = hid_usage_table; p->description; p++) |
| if (p->page == page) { |
| if (!f) { |
| snprintf(buf, HID_DEBUG_BUFSIZE, "%s", |
| p->description); |
| return buf; |
| } |
| else { |
| seq_printf(f, "%s", p->description); |
| return NULL; |
| } |
| } |
| if (!f) |
| snprintf(buf, HID_DEBUG_BUFSIZE, "%04x", page); |
| else |
| seq_printf(f, "%04x", page); |
| return buf; |
| } |
| |
| char *hid_resolv_usage(unsigned usage, struct seq_file *f) { |
| const struct hid_usage_entry *p; |
| char *buf = NULL; |
| int len = 0; |
| |
| buf = resolv_usage_page(usage >> 16, f); |
| if (IS_ERR(buf)) { |
| pr_err("error allocating HID debug buffer\n"); |
| return NULL; |
| } |
| |
| |
| if (!f) { |
| len = strlen(buf); |
| snprintf(buf+len, max(0, HID_DEBUG_BUFSIZE - len), "."); |
| len++; |
| } |
| else { |
| seq_printf(f, "."); |
| } |
| for (p = hid_usage_table; p->description; p++) |
| if (p->page == (usage >> 16)) { |
| for(++p; p->description && p->usage != 0; p++) |
| if (p->usage == (usage & 0xffff)) { |
| if (!f) |
| snprintf(buf + len, |
| max(0,HID_DEBUG_BUFSIZE - len - 1), |
| "%s", p->description); |
| else |
| seq_printf(f, |
| "%s", |
| p->description); |
| return buf; |
| } |
| break; |
| } |
| if (!f) |
| snprintf(buf + len, max(0, HID_DEBUG_BUFSIZE - len - 1), |
| "%04x", usage & 0xffff); |
| else |
| seq_printf(f, "%04x", usage & 0xffff); |
| return buf; |
| } |
| EXPORT_SYMBOL_GPL(hid_resolv_usage); |
| |
| static void tab(int n, struct seq_file *f) { |
| seq_printf(f, "%*s", n, ""); |
| } |
| |
| void hid_dump_field(struct hid_field *field, int n, struct seq_file *f) { |
| int j; |
| |
| if (field->physical) { |
| tab(n, f); |
| seq_printf(f, "Physical("); |
| hid_resolv_usage(field->physical, f); seq_printf(f, ")\n"); |
| } |
| if (field->logical) { |
| tab(n, f); |
| seq_printf(f, "Logical("); |
| hid_resolv_usage(field->logical, f); seq_printf(f, ")\n"); |
| } |
| if (field->application) { |
| tab(n, f); |
| seq_printf(f, "Application("); |
| hid_resolv_usage(field->application, f); seq_printf(f, ")\n"); |
| } |
| tab(n, f); seq_printf(f, "Usage(%d)\n", field->maxusage); |
| for (j = 0; j < field->maxusage; j++) { |
| tab(n+2, f); hid_resolv_usage(field->usage[j].hid, f); seq_printf(f, "\n"); |
| } |
| if (field->logical_minimum != field->logical_maximum) { |
| tab(n, f); seq_printf(f, "Logical Minimum(%d)\n", field->logical_minimum); |
| tab(n, f); seq_printf(f, "Logical Maximum(%d)\n", field->logical_maximum); |
| } |
| if (field->physical_minimum != field->physical_maximum) { |
| tab(n, f); seq_printf(f, "Physical Minimum(%d)\n", field->physical_minimum); |
| tab(n, f); seq_printf(f, "Physical Maximum(%d)\n", field->physical_maximum); |
| } |
| if (field->unit_exponent) { |
| tab(n, f); seq_printf(f, "Unit Exponent(%d)\n", field->unit_exponent); |
| } |
| if (field->unit) { |
| static const char *systems[5] = { "None", "SI Linear", "SI Rotation", "English Linear", "English Rotation" }; |
| static const char *units[5][8] = { |
| { "None", "None", "None", "None", "None", "None", "None", "None" }, |
| { "None", "Centimeter", "Gram", "Seconds", "Kelvin", "Ampere", "Candela", "None" }, |
| { "None", "Radians", "Gram", "Seconds", "Kelvin", "Ampere", "Candela", "None" }, |
| { "None", "Inch", "Slug", "Seconds", "Fahrenheit", "Ampere", "Candela", "None" }, |
| { "None", "Degrees", "Slug", "Seconds", "Fahrenheit", "Ampere", "Candela", "None" } |
| }; |
| |
| int i; |
| int sys; |
| __u32 data = field->unit; |
| |
| /* First nibble tells us which system we're in. */ |
| sys = data & 0xf; |
| data >>= 4; |
| |
| if(sys > 4) { |
| tab(n, f); seq_printf(f, "Unit(Invalid)\n"); |
| } |
| else { |
| int earlier_unit = 0; |
| |
| tab(n, f); seq_printf(f, "Unit(%s : ", systems[sys]); |
| |
| for (i=1 ; i<sizeof(__u32)*2 ; i++) { |
| char nibble = data & 0xf; |
| data >>= 4; |
| if (nibble != 0) { |
| if(earlier_unit++ > 0) |
| seq_printf(f, "*"); |
| seq_printf(f, "%s", units[sys][i]); |
| if(nibble != 1) { |
| /* This is a _signed_ nibble(!) */ |
| |
| int val = nibble & 0x7; |
| if(nibble & 0x08) |
| val = -((0x7 & ~val) +1); |
| seq_printf(f, "^%d", val); |
| } |
| } |
| } |
| seq_printf(f, ")\n"); |
| } |
| } |
| tab(n, f); seq_printf(f, "Report Size(%u)\n", field->report_size); |
| tab(n, f); seq_printf(f, "Report Count(%u)\n", field->report_count); |
| tab(n, f); seq_printf(f, "Report Offset(%u)\n", field->report_offset); |
| |
| tab(n, f); seq_printf(f, "Flags( "); |
| j = field->flags; |
| seq_printf(f, "%s", HID_MAIN_ITEM_CONSTANT & j ? "Constant " : ""); |
| seq_printf(f, "%s", HID_MAIN_ITEM_VARIABLE & j ? "Variable " : "Array "); |
| seq_printf(f, "%s", HID_MAIN_ITEM_RELATIVE & j ? "Relative " : "Absolute "); |
| seq_printf(f, "%s", HID_MAIN_ITEM_WRAP & j ? "Wrap " : ""); |
| seq_printf(f, "%s", HID_MAIN_ITEM_NONLINEAR & j ? "NonLinear " : ""); |
| seq_printf(f, "%s", HID_MAIN_ITEM_NO_PREFERRED & j ? "NoPreferredState " : ""); |
| seq_printf(f, "%s", HID_MAIN_ITEM_NULL_STATE & j ? "NullState " : ""); |
| seq_printf(f, "%s", HID_MAIN_ITEM_VOLATILE & j ? "Volatile " : ""); |
| seq_printf(f, "%s", HID_MAIN_ITEM_BUFFERED_BYTE & j ? "BufferedByte " : ""); |
| seq_printf(f, ")\n"); |
| } |
| EXPORT_SYMBOL_GPL(hid_dump_field); |
| |
| void hid_dump_device(struct hid_device *device, struct seq_file *f) |
| { |
| struct hid_report_enum *report_enum; |
| struct hid_report *report; |
| struct list_head *list; |
| unsigned i,k; |
| static const char *table[] = {"INPUT", "OUTPUT", "FEATURE"}; |
| |
| for (i = 0; i < HID_REPORT_TYPES; i++) { |
| report_enum = device->report_enum + i; |
| list = report_enum->report_list.next; |
| while (list != &report_enum->report_list) { |
| report = (struct hid_report *) list; |
| tab(2, f); |
| seq_printf(f, "%s", table[i]); |
| if (report->id) |
| seq_printf(f, "(%d)", report->id); |
| seq_printf(f, "[%s]", table[report->type]); |
| seq_printf(f, "\n"); |
| for (k = 0; k < report->maxfield; k++) { |
| tab(4, f); |
| seq_printf(f, "Field(%d)\n", k); |
| hid_dump_field(report->field[k], 6, f); |
| } |
| list = list->next; |
| } |
| } |
| } |
| EXPORT_SYMBOL_GPL(hid_dump_device); |
| |
| /* enqueue string to 'events' ring buffer */ |
| void hid_debug_event(struct hid_device *hdev, char *buf) |
| { |
| int i; |
| struct hid_debug_list *list; |
| |
| list_for_each_entry(list, &hdev->debug_list, node) { |
| for (i = 0; i < strlen(buf); i++) |
| list->hid_debug_buf[(list->tail + i) % HID_DEBUG_BUFSIZE] = |
| buf[i]; |
| list->tail = (list->tail + i) % HID_DEBUG_BUFSIZE; |
| } |
| |
| wake_up_interruptible(&hdev->debug_wait); |
| } |
| EXPORT_SYMBOL_GPL(hid_debug_event); |
| |
| void hid_dump_input(struct hid_device *hdev, struct hid_usage *usage, __s32 value) |
| { |
| char *buf; |
| int len; |
| |
| buf = hid_resolv_usage(usage->hid, NULL); |
| if (!buf) |
| return; |
| len = strlen(buf); |
| snprintf(buf + len, HID_DEBUG_BUFSIZE - len - 1, " = %d\n", value); |
| |
| hid_debug_event(hdev, buf); |
| |
| kfree(buf); |
| wake_up_interruptible(&hdev->debug_wait); |
| |
| } |
| EXPORT_SYMBOL_GPL(hid_dump_input); |
| |
| static const char *events[EV_MAX + 1] = { |
| [EV_SYN] = "Sync", [EV_KEY] = "Key", |
| [EV_REL] = "Relative", [EV_ABS] = "Absolute", |
| [EV_MSC] = "Misc", [EV_LED] = "LED", |
| [EV_SND] = "Sound", [EV_REP] = "Repeat", |
| [EV_FF] = "ForceFeedback", [EV_PWR] = "Power", |
| [EV_FF_STATUS] = "ForceFeedbackStatus", |
| }; |
| |
| static const char *syncs[3] = { |
| [SYN_REPORT] = "Report", [SYN_CONFIG] = "Config", |
| [SYN_MT_REPORT] = "MT Report", |
| }; |
| |
| static const char *keys[KEY_MAX + 1] = { |
| [KEY_RESERVED] = "Reserved", [KEY_ESC] = "Esc", |
| [KEY_1] = "1", [KEY_2] = "2", |
| [KEY_3] = "3", [KEY_4] = "4", |
| [KEY_5] = "5", [KEY_6] = "6", |
| [KEY_7] = "7", [KEY_8] = "8", |
| [KEY_9] = "9", [KEY_0] = "0", |
| [KEY_MINUS] = "Minus", [KEY_EQUAL] = "Equal", |
| [KEY_BACKSPACE] = "Backspace", [KEY_TAB] = "Tab", |
| [KEY_Q] = "Q", [KEY_W] = "W", |
| [KEY_E] = "E", [KEY_R] = "R", |
| [KEY_T] = "T", [KEY_Y] = "Y", |
| [KEY_U] = "U", [KEY_I] = "I", |
| [KEY_O] = "O", [KEY_P] = "P", |
| [KEY_LEFTBRACE] = "LeftBrace", [KEY_RIGHTBRACE] = "RightBrace", |
| [KEY_ENTER] = "Enter", [KEY_LEFTCTRL] = "LeftControl", |
| [KEY_A] = "A", [KEY_S] = "S", |
| [KEY_D] = "D", [KEY_F] = "F", |
| [KEY_G] = "G", [KEY_H] = "H", |
| [KEY_J] = "J", [KEY_K] = "K", |
| [KEY_L] = "L", [KEY_SEMICOLON] = "Semicolon", |
| [KEY_APOSTROPHE] = "Apostrophe", [KEY_GRAVE] = "Grave", |
| [KEY_LEFTSHIFT] = "LeftShift", [KEY_BACKSLASH] = "BackSlash", |
| [KEY_Z] = "Z", [KEY_X] = "X", |
| [KEY_C] = "C", [KEY_V] = "V", |
| [KEY_B] = "B", [KEY_N] = "N", |
| [KEY_M] = "M", [KEY_COMMA] = "Comma", |
| [KEY_DOT] = "Dot", [KEY_SLASH] = "Slash", |
| [KEY_RIGHTSHIFT] = "RightShift", [KEY_KPASTERISK] = "KPAsterisk", |
| [KEY_LEFTALT] = "LeftAlt", [KEY_SPACE] = "Space", |
| [KEY_CAPSLOCK] = "CapsLock", [KEY_F1] = "F1", |
| [KEY_F2] = "F2", [KEY_F3] = "F3", |
| [KEY_F4] = "F4", [KEY_F5] = "F5", |
| [KEY_F6] = "F6", [KEY_F7] = "F7", |
| [KEY_F8] = "F8", [KEY_F9] = "F9", |
| [KEY_F10] = "F10", [KEY_NUMLOCK] = "NumLock", |
| [KEY_SCROLLLOCK] = "ScrollLock", [KEY_KP7] = "KP7", |
| [KEY_KP8] = "KP8", [KEY_KP9] = "KP9", |
| [KEY_KPMINUS] = "KPMinus", [KEY_KP4] = "KP4", |
| [KEY_KP5] = "KP5", [KEY_KP6] = "KP6", |
| [KEY_KPPLUS] = "KPPlus", [KEY_KP1] = "KP1", |
| [KEY_KP2] = "KP2", [KEY_KP3] = "KP3", |
| [KEY_KP0] = "KP0", [KEY_KPDOT] = "KPDot", |
| [KEY_ZENKAKUHANKAKU] = "Zenkaku/Hankaku", [KEY_102ND] = "102nd", |
| [KEY_F11] = "F11", [KEY_F12] = "F12", |
| [KEY_RO] = "RO", [KEY_KATAKANA] = "Katakana", |
| [KEY_HIRAGANA] = "HIRAGANA", [KEY_HENKAN] = "Henkan", |
| [KEY_KATAKANAHIRAGANA] = "Katakana/Hiragana", [KEY_MUHENKAN] = "Muhenkan", |
| [KEY_KPJPCOMMA] = "KPJpComma", [KEY_KPENTER] = "KPEnter", |
| [KEY_RIGHTCTRL] = "RightCtrl", [KEY_KPSLASH] = "KPSlash", |
| [KEY_SYSRQ] = "SysRq", [KEY_RIGHTALT] = "RightAlt", |
| [KEY_LINEFEED] = "LineFeed", [KEY_HOME] = "Home", |
| [KEY_UP] = "Up", [KEY_PAGEUP] = "PageUp", |
| [KEY_LEFT] = "Left", [KEY_RIGHT] = "Right", |
| [KEY_END] = "End", [KEY_DOWN] = "Down", |
| [KEY_PAGEDOWN] = "PageDown", [KEY_INSERT] = "Insert", |
| [KEY_DELETE] = "Delete", [KEY_MACRO] = "Macro", |
| [KEY_MUTE] = "Mute", [KEY_VOLUMEDOWN] = "VolumeDown", |
| [KEY_VOLUMEUP] = "VolumeUp", [KEY_POWER] = "Power", |
| [KEY_KPEQUAL] = "KPEqual", [KEY_KPPLUSMINUS] = "KPPlusMinus", |
| [KEY_PAUSE] = "Pause", [KEY_KPCOMMA] = "KPComma", |
| [KEY_HANGUEL] = "Hangeul", [KEY_HANJA] = "Hanja", |
| [KEY_YEN] = "Yen", [KEY_LEFTMETA] = "LeftMeta", |
| [KEY_RIGHTMETA] = "RightMeta", [KEY_COMPOSE] = "Compose", |
| [KEY_STOP] = "Stop", [KEY_AGAIN] = "Again", |
| [KEY_PROPS] = "Props", [KEY_UNDO] = "Undo", |
| [KEY_FRONT] = "Front", [KEY_COPY] = "Copy", |
| [KEY_OPEN] = "Open", [KEY_PASTE] = "Paste", |
| [KEY_FIND] = "Find", [KEY_CUT] = "Cut", |
| [KEY_HELP] = "Help", [KEY_MENU] = "Menu", |
| [KEY_CALC] = "Calc", [KEY_SETUP] = "Setup", |
| [KEY_SLEEP] = "Sleep", [KEY_WAKEUP] = "WakeUp", |
| [KEY_FILE] = "File", [KEY_SENDFILE] = "SendFile", |
| [KEY_DELETEFILE] = "DeleteFile", [KEY_XFER] = "X-fer", |
| [KEY_PROG1] = "Prog1", [KEY_PROG2] = "Prog2", |
| [KEY_WWW] = "WWW", [KEY_MSDOS] = "MSDOS", |
| [KEY_COFFEE] = "Coffee", [KEY_DIRECTION] = "Direction", |
| [KEY_CYCLEWINDOWS] = "CycleWindows", [KEY_MAIL] = "Mail", |
| [KEY_BOOKMARKS] = "Bookmarks", [KEY_COMPUTER] = "Computer", |
| [KEY_BACK] = "Back", [KEY_FORWARD] = "Forward", |
| [KEY_CLOSECD] = "CloseCD", [KEY_EJECTCD] = "EjectCD", |
| [KEY_EJECTCLOSECD] = "EjectCloseCD", [KEY_NEXTSONG] = "NextSong", |
| [KEY_PLAYPAUSE] = "PlayPause", [KEY_PREVIOUSSONG] = "PreviousSong", |
| [KEY_STOPCD] = "StopCD", [KEY_RECORD] = "Record", |
| [KEY_REWIND] = "Rewind", [KEY_PHONE] = "Phone", |
| [KEY_ISO] = "ISOKey", [KEY_CONFIG] = "Config", |
| [KEY_HOMEPAGE] = "HomePage", [KEY_REFRESH] = "Refresh", |
| [KEY_EXIT] = "Exit", [KEY_MOVE] = "Move", |
| [KEY_EDIT] = "Edit", [KEY_SCROLLUP] = "ScrollUp", |
| [KEY_SCROLLDOWN] = "ScrollDown", [KEY_KPLEFTPAREN] = "KPLeftParenthesis", |
| [KEY_KPRIGHTPAREN] = "KPRightParenthesis", [KEY_NEW] = "New", |
| [KEY_REDO] = "Redo", [KEY_F13] = "F13", |
| [KEY_F14] = "F14", [KEY_F15] = "F15", |
| [KEY_F16] = "F16", [KEY_F17] = "F17", |
| [KEY_F18] = "F18", [KEY_F19] = "F19", |
| [KEY_F20] = "F20", [KEY_F21] = "F21", |
| [KEY_F22] = "F22", [KEY_F23] = "F23", |
| [KEY_F24] = "F24", [KEY_PLAYCD] = "PlayCD", |
| [KEY_PAUSECD] = "PauseCD", [KEY_PROG3] = "Prog3", |
| [KEY_PROG4] = "Prog4", [KEY_SUSPEND] = "Suspend", |
| [KEY_CLOSE] = "Close", [KEY_PLAY] = "Play", |
| [KEY_FASTFORWARD] = "FastForward", [KEY_BASSBOOST] = "BassBoost", |
| [KEY_PRINT] = "Print", [KEY_HP] = "HP", |
| [KEY_CAMERA] = "Camera", [KEY_SOUND] = "Sound", |
| [KEY_QUESTION] = "Question", [KEY_EMAIL] = "Email", |
| [KEY_CHAT] = "Chat", [KEY_SEARCH] = "Search", |
| [KEY_CONNECT] = "Connect", [KEY_FINANCE] = "Finance", |
| [KEY_SPORT] = "Sport", [KEY_SHOP] = "Shop", |
| [KEY_ALTERASE] = "AlternateErase", [KEY_CANCEL] = "Cancel", |
| [KEY_BRIGHTNESSDOWN] = "BrightnessDown", [KEY_BRIGHTNESSUP] = "BrightnessUp", |
| [KEY_MEDIA] = "Media", [KEY_UNKNOWN] = "Unknown", |
| [BTN_0] = "Btn0", [BTN_1] = "Btn1", |
| [BTN_2] = "Btn2", [BTN_3] = "Btn3", |
| [BTN_4] = "Btn4", [BTN_5] = "Btn5", |
| [BTN_6] = "Btn6", [BTN_7] = "Btn7", |
| [BTN_8] = "Btn8", [BTN_9] = "Btn9", |
| [BTN_LEFT] = "LeftBtn", [BTN_RIGHT] = "RightBtn", |
| [BTN_MIDDLE] = "MiddleBtn", [BTN_SIDE] = "SideBtn", |
| [BTN_EXTRA] = "ExtraBtn", [BTN_FORWARD] = "ForwardBtn", |
| [BTN_BACK] = "BackBtn", [BTN_TASK] = "TaskBtn", |
| [BTN_TRIGGER] = "Trigger", [BTN_THUMB] = "ThumbBtn", |
| [BTN_THUMB2] = "ThumbBtn2", [BTN_TOP] = "TopBtn", |
| [BTN_TOP2] = "TopBtn2", [BTN_PINKIE] = "PinkieBtn", |
| [BTN_BASE] = "BaseBtn", [BTN_BASE2] = "BaseBtn2", |
| [BTN_BASE3] = "BaseBtn3", [BTN_BASE4] = "BaseBtn4", |
| [BTN_BASE5] = "BaseBtn5", [BTN_BASE6] = "BaseBtn6", |
| [BTN_DEAD] = "BtnDead", [BTN_A] = "BtnA", |
| [BTN_B] = "BtnB", [BTN_C] = "BtnC", |
| [BTN_X] = "BtnX", [BTN_Y] = "BtnY", |
| [BTN_Z] = "BtnZ", [BTN_TL] = "BtnTL", |
| [BTN_TR] = "BtnTR", [BTN_TL2] = "BtnTL2", |
| [BTN_TR2] = "BtnTR2", [BTN_SELECT] = "BtnSelect", |
| [BTN_START] = "BtnStart", [BTN_MODE] = "BtnMode", |
| [BTN_THUMBL] = "BtnThumbL", [BTN_THUMBR] = "BtnThumbR", |
| [BTN_TOOL_PEN] = "ToolPen", [BTN_TOOL_RUBBER] = "ToolRubber", |
| [BTN_TOOL_BRUSH] = "ToolBrush", [BTN_TOOL_PENCIL] = "ToolPencil", |
| [BTN_TOOL_AIRBRUSH] = "ToolAirbrush", [BTN_TOOL_FINGER] = "ToolFinger", |
| [BTN_TOOL_MOUSE] = "ToolMouse", [BTN_TOOL_LENS] = "ToolLens", |
| [BTN_TOUCH] = "Touch", [BTN_STYLUS] = "Stylus", |
| [BTN_STYLUS2] = "Stylus2", [BTN_TOOL_DOUBLETAP] = "ToolDoubleTap", |
| [BTN_TOOL_TRIPLETAP] = "ToolTripleTap", [BTN_GEAR_DOWN] = "WheelBtn", |
| [BTN_GEAR_UP] = "Gear up", [KEY_OK] = "Ok", |
| [KEY_SELECT] = "Select", [KEY_GOTO] = "Goto", |
| [KEY_CLEAR] = "Clear", [KEY_POWER2] = "Power2", |
| [KEY_OPTION] = "Option", [KEY_INFO] = "Info", |
| [KEY_TIME] = "Time", [KEY_VENDOR] = "Vendor", |
| [KEY_ARCHIVE] = "Archive", [KEY_PROGRAM] = "Program", |
| [KEY_CHANNEL] = "Channel", [KEY_FAVORITES] = "Favorites", |
| [KEY_EPG] = "EPG", [KEY_PVR] = "PVR", |
| [KEY_MHP] = "MHP", [KEY_LANGUAGE] = "Language", |
| [KEY_TITLE] = "Title", [KEY_SUBTITLE] = "Subtitle", |
| [KEY_ANGLE] = "Angle", [KEY_ZOOM] = "Zoom", |
| [KEY_MODE] = "Mode", [KEY_KEYBOARD] = "Keyboard", |
| [KEY_SCREEN] = "Screen", [KEY_PC] = "PC", |
| [KEY_TV] = "TV", [KEY_TV2] = "TV2", |
| [KEY_VCR] = "VCR", [KEY_VCR2] = "VCR2", |
| [KEY_SAT] = "Sat", [KEY_SAT2] = "Sat2", |
| [KEY_CD] = "CD", [KEY_TAPE] = "Tape", |
| [KEY_RADIO] = "Radio", [KEY_TUNER] = "Tuner", |
| [KEY_PLAYER] = "Player", [KEY_TEXT] = "Text", |
| [KEY_DVD] = "DVD", [KEY_AUX] = "Aux", |
| [KEY_MP3] = "MP3", [KEY_AUDIO] = "Audio", |
| [KEY_VIDEO] = "Video", [KEY_DIRECTORY] = "Directory", |
| [KEY_LIST] = "List", [KEY_MEMO] = "Memo", |
| [KEY_CALENDAR] = "Calendar", [KEY_RED] = "Red", |
| [KEY_GREEN] = "Green", [KEY_YELLOW] = "Yellow", |
| [KEY_BLUE] = "Blue", [KEY_CHANNELUP] = "ChannelUp", |
| [KEY_CHANNELDOWN] = "ChannelDown", [KEY_FIRST] = "First", |
| [KEY_LAST] = "Last", [KEY_AB] = "AB", |
| [KEY_NEXT] = "Next", [KEY_RESTART] = "Restart", |
| [KEY_SLOW] = "Slow", [KEY_SHUFFLE] = "Shuffle", |
| [KEY_BREAK] = "Break", [KEY_PREVIOUS] = "Previous", |
| [KEY_DIGITS] = "Digits", [KEY_TEEN] = "TEEN", |
| [KEY_TWEN] = "TWEN", [KEY_DEL_EOL] = "DeleteEOL", |
| [KEY_DEL_EOS] = "DeleteEOS", [KEY_INS_LINE] = "InsertLine", |
| [KEY_DEL_LINE] = "DeleteLine", |
| [KEY_SEND] = "Send", [KEY_REPLY] = "Reply", |
| [KEY_FORWARDMAIL] = "ForwardMail", [KEY_SAVE] = "Save", |
| [KEY_DOCUMENTS] = "Documents", [KEY_SPELLCHECK] = "SpellCheck", |
| [KEY_LOGOFF] = "Logoff", |
| [KEY_FN] = "Fn", [KEY_FN_ESC] = "Fn+ESC", |
| [KEY_FN_1] = "Fn+1", [KEY_FN_2] = "Fn+2", |
| [KEY_FN_B] = "Fn+B", [KEY_FN_D] = "Fn+D", |
| [KEY_FN_E] = "Fn+E", [KEY_FN_F] = "Fn+F", |
| [KEY_FN_S] = "Fn+S", |
| [KEY_FN_F1] = "Fn+F1", [KEY_FN_F2] = "Fn+F2", |
| [KEY_FN_F3] = "Fn+F3", [KEY_FN_F4] = "Fn+F4", |
| [KEY_FN_F5] = "Fn+F5", [KEY_FN_F6] = "Fn+F6", |
| [KEY_FN_F7] = "Fn+F7", [KEY_FN_F8] = "Fn+F8", |
| [KEY_FN_F9] = "Fn+F9", [KEY_FN_F10] = "Fn+F10", |
| [KEY_FN_F11] = "Fn+F11", [KEY_FN_F12] = "Fn+F12", |
| [KEY_KBDILLUMTOGGLE] = "KbdIlluminationToggle", |
| [KEY_KBDILLUMDOWN] = "KbdIlluminationDown", |
| [KEY_KBDILLUMUP] = "KbdIlluminationUp", |
| [KEY_SWITCHVIDEOMODE] = "SwitchVideoMode", |
| }; |
| |
| static const char *relatives[REL_MAX + 1] = { |
| [REL_X] = "X", [REL_Y] = "Y", |
| [REL_Z] = "Z", [REL_RX] = "Rx", |
| [REL_RY] = "Ry", [REL_RZ] = "Rz", |
| [REL_HWHEEL] = "HWheel", [REL_DIAL] = "Dial", |
| [REL_WHEEL] = "Wheel", [REL_MISC] = "Misc", |
| }; |
| |
| static const char *absolutes[ABS_CNT] = { |
| [ABS_X] = "X", [ABS_Y] = "Y", |
| [ABS_Z] = "Z", [ABS_RX] = "Rx", |
| [ABS_RY] = "Ry", [ABS_RZ] = "Rz", |
| [ABS_THROTTLE] = "Throttle", [ABS_RUDDER] = "Rudder", |
| [ABS_WHEEL] = "Wheel", [ABS_GAS] = "Gas", |
| [ABS_BRAKE] = "Brake", [ABS_HAT0X] = "Hat0X", |
| [ABS_HAT0Y] = "Hat0Y", [ABS_HAT1X] = "Hat1X", |
| [ABS_HAT1Y] = "Hat1Y", [ABS_HAT2X] = "Hat2X", |
| [ABS_HAT2Y] = "Hat2Y", [ABS_HAT3X] = "Hat3X", |
| [ABS_HAT3Y] = "Hat 3Y", [ABS_PRESSURE] = "Pressure", |
| [ABS_DISTANCE] = "Distance", [ABS_TILT_X] = "XTilt", |
| [ABS_TILT_Y] = "YTilt", [ABS_TOOL_WIDTH] = "ToolWidth", |
| [ABS_VOLUME] = "Volume", [ABS_MISC] = "Misc", |
| [ABS_MT_TOUCH_MAJOR] = "MTMajor", |
| [ABS_MT_TOUCH_MINOR] = "MTMinor", |
| [ABS_MT_WIDTH_MAJOR] = "MTMajorW", |
| [ABS_MT_WIDTH_MINOR] = "MTMinorW", |
| [ABS_MT_ORIENTATION] = "MTOrientation", |
| [ABS_MT_POSITION_X] = "MTPositionX", |
| [ABS_MT_POSITION_Y] = "MTPositionY", |
| [ABS_MT_TOOL_TYPE] = "MTToolType", |
| [ABS_MT_BLOB_ID] = "MTBlobID", |
| }; |
| |
| static const char *misc[MSC_MAX + 1] = { |
| [MSC_SERIAL] = "Serial", [MSC_PULSELED] = "Pulseled", |
| [MSC_GESTURE] = "Gesture", [MSC_RAW] = "RawData" |
| }; |
| |
| static const char *leds[LED_MAX + 1] = { |
| [LED_NUML] = "NumLock", [LED_CAPSL] = "CapsLock", |
| [LED_SCROLLL] = "ScrollLock", [LED_COMPOSE] = "Compose", |
| [LED_KANA] = "Kana", [LED_SLEEP] = "Sleep", |
| [LED_SUSPEND] = "Suspend", [LED_MUTE] = "Mute", |
| [LED_MISC] = "Misc", |
| }; |
| |
| static const char *repeats[REP_MAX + 1] = { |
| [REP_DELAY] = "Delay", [REP_PERIOD] = "Period" |
| }; |
| |
| static const char *sounds[SND_MAX + 1] = { |
| [SND_CLICK] = "Click", [SND_BELL] = "Bell", |
| [SND_TONE] = "Tone" |
| }; |
| |
| static const char **names[EV_MAX + 1] = { |
| [EV_SYN] = syncs, [EV_KEY] = keys, |
| [EV_REL] = relatives, [EV_ABS] = absolutes, |
| [EV_MSC] = misc, [EV_LED] = leds, |
| [EV_SND] = sounds, [EV_REP] = repeats, |
| }; |
| |
| static void hid_resolv_event(__u8 type, __u16 code, struct seq_file *f) |
| { |
| seq_printf(f, "%s.%s", events[type] ? events[type] : "?", |
| names[type] ? (names[type][code] ? names[type][code] : "?") : "?"); |
| } |
| |
| static void hid_dump_input_mapping(struct hid_device *hid, struct seq_file *f) |
| { |
| int i, j, k; |
| struct hid_report *report; |
| struct hid_usage *usage; |
| |
| for (k = HID_INPUT_REPORT; k <= HID_OUTPUT_REPORT; k++) { |
| list_for_each_entry(report, &hid->report_enum[k].report_list, list) { |
| for (i = 0; i < report->maxfield; i++) { |
| for ( j = 0; j < report->field[i]->maxusage; j++) { |
| usage = report->field[i]->usage + j; |
| hid_resolv_usage(usage->hid, f); |
| seq_printf(f, " ---> "); |
| hid_resolv_event(usage->type, usage->code, f); |
| seq_printf(f, "\n"); |
| } |
| } |
| } |
| } |
| |
| } |
| |
| |
| static int hid_debug_rdesc_show(struct seq_file *f, void *p) |
| { |
| struct hid_device *hdev = f->private; |
| int i; |
| |
| /* dump HID report descriptor */ |
| for (i = 0; i < hdev->rsize; i++) |
| seq_printf(f, "%02x ", hdev->rdesc[i]); |
| seq_printf(f, "\n\n"); |
| |
| /* dump parsed data and input mappings */ |
| hid_dump_device(hdev, f); |
| seq_printf(f, "\n"); |
| hid_dump_input_mapping(hdev, f); |
| |
| return 0; |
| } |
| |
| static int hid_debug_rdesc_open(struct inode *inode, struct file *file) |
| { |
| return single_open(file, hid_debug_rdesc_show, inode->i_private); |
| } |
| |
| static int hid_debug_events_open(struct inode *inode, struct file *file) |
| { |
| int err = 0; |
| struct hid_debug_list *list; |
| |
| if (!(list = kzalloc(sizeof(struct hid_debug_list), GFP_KERNEL))) { |
| err = -ENOMEM; |
| goto out; |
| } |
| |
| if (!(list->hid_debug_buf = kzalloc(sizeof(char) * HID_DEBUG_BUFSIZE, GFP_KERNEL))) { |
| err = -ENOMEM; |
| kfree(list); |
| goto out; |
| } |
| list->hdev = (struct hid_device *) inode->i_private; |
| file->private_data = list; |
| mutex_init(&list->read_mutex); |
| |
| list_add_tail(&list->node, &list->hdev->debug_list); |
| |
| out: |
| return err; |
| } |
| |
| static ssize_t hid_debug_events_read(struct file *file, char __user *buffer, |
| size_t count, loff_t *ppos) |
| { |
| struct hid_debug_list *list = file->private_data; |
| int ret = 0, len; |
| DECLARE_WAITQUEUE(wait, current); |
| |
| mutex_lock(&list->read_mutex); |
| while (ret == 0) { |
| if (list->head == list->tail) { |
| add_wait_queue(&list->hdev->debug_wait, &wait); |
| set_current_state(TASK_INTERRUPTIBLE); |
| |
| while (list->head == list->tail) { |
| if (file->f_flags & O_NONBLOCK) { |
| ret = -EAGAIN; |
| break; |
| } |
| if (signal_pending(current)) { |
| ret = -ERESTARTSYS; |
| break; |
| } |
| |
| if (!list->hdev || !list->hdev->debug) { |
| ret = -EIO; |
| break; |
| } |
| |
| /* allow O_NONBLOCK from other threads */ |
| mutex_unlock(&list->read_mutex); |
| schedule(); |
| mutex_lock(&list->read_mutex); |
| set_current_state(TASK_INTERRUPTIBLE); |
| } |
| |
| set_current_state(TASK_RUNNING); |
| remove_wait_queue(&list->hdev->debug_wait, &wait); |
| } |
| |
| if (ret) |
| goto out; |
| |
| /* pass the ringbuffer contents to userspace */ |
| copy_rest: |
| if (list->tail == list->head) |
| goto out; |
| if (list->tail > list->head) { |
| len = list->tail - list->head; |
| |
| if (copy_to_user(buffer + ret, &list->hid_debug_buf[list->head], len)) { |
| ret = -EFAULT; |
| goto out; |
| } |
| ret += len; |
| list->head += len; |
| } else { |
| len = HID_DEBUG_BUFSIZE - list->head; |
| |
| if (copy_to_user(buffer, &list->hid_debug_buf[list->head], len)) { |
| ret = -EFAULT; |
| goto out; |
| } |
| list->head = 0; |
| ret += len; |
| goto copy_rest; |
| } |
| |
| } |
| out: |
| mutex_unlock(&list->read_mutex); |
| return ret; |
| } |
| |
| static unsigned int hid_debug_events_poll(struct file *file, poll_table *wait) |
| { |
| struct hid_debug_list *list = file->private_data; |
| |
| poll_wait(file, &list->hdev->debug_wait, wait); |
| if (list->head != list->tail) |
| return POLLIN | POLLRDNORM; |
| if (!list->hdev->debug) |
| return POLLERR | POLLHUP; |
| return 0; |
| } |
| |
| static int hid_debug_events_release(struct inode *inode, struct file *file) |
| { |
| struct hid_debug_list *list = file->private_data; |
| |
| list_del(&list->node); |
| kfree(list->hid_debug_buf); |
| kfree(list); |
| |
| return 0; |
| } |
| |
| static const struct file_operations hid_debug_rdesc_fops = { |
| .open = hid_debug_rdesc_open, |
| .read = seq_read, |
| .llseek = seq_lseek, |
| .release = single_release, |
| }; |
| |
| static const struct file_operations hid_debug_events_fops = { |
| .owner = THIS_MODULE, |
| .open = hid_debug_events_open, |
| .read = hid_debug_events_read, |
| .poll = hid_debug_events_poll, |
| .release = hid_debug_events_release, |
| .llseek = noop_llseek, |
| }; |
| |
| |
| void hid_debug_register(struct hid_device *hdev, const char *name) |
| { |
| hdev->debug_dir = debugfs_create_dir(name, hid_debug_root); |
| hdev->debug_rdesc = debugfs_create_file("rdesc", 0400, |
| hdev->debug_dir, hdev, &hid_debug_rdesc_fops); |
| hdev->debug_events = debugfs_create_file("events", 0400, |
| hdev->debug_dir, hdev, &hid_debug_events_fops); |
| hdev->debug = 1; |
| } |
| |
| void hid_debug_unregister(struct hid_device *hdev) |
| { |
| hdev->debug = 0; |
| wake_up_interruptible(&hdev->debug_wait); |
| debugfs_remove(hdev->debug_rdesc); |
| debugfs_remove(hdev->debug_events); |
| debugfs_remove(hdev->debug_dir); |
| } |
| |
| void hid_debug_init(void) |
| { |
| hid_debug_root = debugfs_create_dir("hid", NULL); |
| } |
| |
| void hid_debug_exit(void) |
| { |
| debugfs_remove_recursive(hid_debug_root); |
| } |
| |