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alder_lake_bios/Intel/AlderLake/ClientOneSiliconPkg/IpBlock/Thc/ThcDriver/ThcPrivate.h

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/**@file
Private Header file for Touch Host Controller Driver
@copyright
INTEL CONFIDENTIAL
Copyright 2018 - 2021 Intel Corporation.
The source code contained or described herein and all documents related to the
source code ("Material") are owned by Intel Corporation or its suppliers or
licensors. Title to the Material remains with Intel Corporation or its suppliers
and licensors. The Material may contain trade secrets and proprietary and
confidential information of Intel Corporation and its suppliers and licensors,
and is protected by worldwide copyright and trade secret laws and treaty
provisions. No part of the Material may be used, copied, reproduced, modified,
published, uploaded, posted, transmitted, distributed, or disclosed in any way
without Intel's prior express written permission.
No license under any patent, copyright, trade secret or other intellectual
property right is granted to or conferred upon you by disclosure or delivery
of the Materials, either expressly, by implication, inducement, estoppel or
otherwise. Any license under such intellectual property rights must be
express and approved by Intel in writing.
Unless otherwise agreed by Intel in writing, you may not remove or alter
this notice or any other notice embedded in Materials by Intel or
Intel's suppliers or licensors in any way.
This file contains an 'Intel Peripheral Driver' and is uniquely identified as
"Intel Reference Module" and is licensed for Intel CPUs and chipsets under
the terms of your license agreement with Intel or your vendor. This file may
be modified by the user, subject to additional terms of the license agreement.
@par Specification Reference:
**/
#ifndef _THC_PRIVATE_H_
#define _THC_PRIVATE_H_
#include <Uefi.h>
#include <PiDxe.h>
//
// Libraries
//
#include <Library/IoLib.h>
#include <Library/BaseLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/DebugLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/UefiLib.h>
#include <Library/UefiRuntimeServicesTableLib.h>
#include <Library/TimerLib.h>
//
// UEFI Driver Model Protocols
//
#include <Protocol/DriverBinding.h>
#include <Protocol/DriverSupportedEfiVersion.h>
#include <Protocol/ComponentName2.h>
#include <Protocol/ComponentName.h>
#include <Protocol/PciIo.h>
//
// Produced Protocols
//
#include <Protocol/AbsolutePointer.h>
#include <Protocol/Thc.h>
//
// Guid
//
#include <Guid/EventGroup.h>
#include <Guid/EventLegacyBios.h>
//
// Registers
//
#include <Register/ThcRegs.h>
//
// Other
//
#include <IndustryStandard/Pci30.h>
#define PCI_DEVICE_ID_PCH_LP_THC0_GEN1 0xA0D0
#define PCI_DEVICE_ID_PCH_H_THC0_GEN1 0x43D0
#define PCI_DEVICE_ID_PCH_P_THC0_GEN1 0x51D0
#define PCI_DEVICE_ID_PCH_N_THC0_GEN1 0x54D0
#define PCI_DEVICE_ID_PCH_S_THC1_GEN2 0x7AD9
#define PCI_DEVICE_ID_PCH_RPL_S_THC0_GEN2 0x7A58
#define PCI_DEVICE_ID_PCH_RPL_S_THC1_GEN2 0x7A59
//#define THC_STANDALONE_DEBUG 0 // Required for stand alone driver Debug
#define THC_LOCAL_DEBUG(Message, ...)
#define THC_POLLING_PERIOD 1 // milliseconds
#define THC_DELAY_PERIOD_1MS 1000
#define THC_RESET_RETRY_COUNT 2
#define TOUCH_DRIVER_VERSION 0x00000001
//
// Protocol instances
//
extern EFI_DRIVER_BINDING_PROTOCOL gThcDriverBinding;
extern EFI_COMPONENT_NAME_PROTOCOL gThcDriverComponentName;
extern EFI_COMPONENT_NAME2_PROTOCOL gThcDriverComponentName2;
extern EFI_GUID gEdkiiTouchPanelGuid;
#define THC_SIGNATURE 0x54484344 //"THCD" Touch Host Controller Device
#define THC_CONTEXT_FROM_THC_PROTOCOL(a) CR (a, THC_DEV, ThcProtocol, THC_SIGNATURE)
#define THC_CONTEXT_FROM_ABSPTR_PROTOCOL(a) CR (a, THC_DEV, AbsPtrProtocol, THC_SIGNATURE)
#define SIZE_FIELD_RESOLUTION 64
#define PRD_MAX_ENTRIES 256
#define PRD_READ_TABLES_SUPPORTED 16
#define PRD_MAX_TABLES_SUPPORTED PRD_READ_TABLES_SUPPORTED
#define PRD_WRITE_TABLES_SUPPORTED 1
#define POINTER_MASK 0x7F
#define POINTER_WRAPAROUND 0x80
#define WRAPAROUND_VALUE_16 16
#define WRAPAROUND_VALUE_0X90 0x90
#define ADDRESS_SHIFT 10 // right shift destination Address
#define SINGLE_FINGER_REPORT_ID 0x40
#define THC_MAX_HID_BUFFER_SIZE 4096 // 4kB -> 1 Page
#pragma pack(push, 1) //ask compiler not to align struct
typedef enum {
TouchReadDataTypeProprietary = 0,
TouchReadDataTypeReserved0 = 1, // Value reserved
TouchReadDataTypeReserved1 = 2, // Value reserved
TouchReadDataTypeHidReport = 3,
TouchReadDataTypeGetFeatures = 4,
TouchReadDataTypeTctlRsp = 5, // When set, readData contains TouchIoctlStruct
TouchReadDataTypeHidReports = 6,
TouchReadDataTypeResetOccurred = 7, //TOUCH_READ_DATA_TYPE_DEVICE_INITIATED_RESET_OCCURRED
TouchReadDataTypeMax = 8
} TOUCH_READ_DATA_TYPE;
typedef struct {
UINT32 DataType; // This must be a value from ReadDataTypes.
/**
The size in bytes of the readData, not including the
size of ReadDataHdr. Will be the sum of all uFrames.
Size of 0 is not allowed.
**/
UINT32 ReadDataSize;
UINT32 Reserved; // This field is deprecated and no longer used. Previously was BufferId.
UINT32 ProtocolVer; // Must match protocol version for this EDS
UINT8 KernelCompatibilityID; // Must match TOUCH_COMPATIBILITY_ID reg field.
UINT8 Reserved1[15]; // Padding for future growth.
UINT32 TransactionId; // Number incremented for each new data Frame.
UINT8 Reserved2[28]; // Padding for future growth.
} RAW_DATA_HEADER;
typedef struct {
RAW_DATA_HEADER Header;
/**
This data can be vendor specific if DataType is
TouchReadDataTypeProprietary. If DataType is
TouchReadDataTypeHidReport, ReadData must match the
SingleFingerReport structure defined in this EDS, or other
defined HID report.
This element is defined as a 1 byte array to allow it to
compile in many environments. In reality, the size of the
array will be ReadDataHdr.ReadDataSize.
**/
UINT8 ReadData[1];
} READ_DATA_BUFF;
//
// Lower Right Corner X,Y Coordinates will be (32767, 32767) and Top
// left corner will be (0,0)
//
typedef struct {
UINT8 ReportId; // Always 0x40.
UINT8 TouchSts; // Bit 0: 0 - No Touch, 1 - Touch. Bits 1-7 are ignored.
UINT8 LowerXByte; // Lower Byte value of X Coordinate. The Max of X coordinate will be 32767.
UINT8 HigherXByte; // Higher Byte value of X Coordinate.
UINT8 LowerYByte; // Lower Byte value of Y Coordinate. The Max of Y coordinate will be 32767.
UINT8 HigherYByte; // Higher Byte value of Y Coordinate.
} SINGLE_FINGER_REPORT;
typedef union {
struct {
UINT32 MaximumReadSize : 14; // RO
UINT32 MaximumWriteSize : 10; // RO
UINT32 Reserved : 8; // RO
} Fields;
UINT32 Data;
} TOUCH_DATA_SIZE;
typedef union {
struct {
UINT32 TouchEnable : 1; // RW
UINT32 ProprietaryDataModeEnabled : 1; // RW
UINT32 HidReportModeEnabled : 1; // RW
UINT32 PowerState : 3; // RW
UINT32 Reserved : 26; // RO
} Fields;
UINT32 Data;
} TOUCH_CONFIG;
typedef union {
struct {
UINT32 TouchEnable : 1; // RO
UINT32 ProprietaryDataModeEnabled : 1; // RO
UINT32 HidReportModeEnabled : 1; // RO
UINT32 PowerState : 3; // RO
UINT32 Reserved : 26; // RO
} Fields;
UINT32 Data;
} TOUCH_STATE;
typedef union {
struct {
UINT32 ProprietaryDataModeSupported : 1; // RO
UINT32 MaxSpiFrequencySupported : 4; // RO
UINT32 SingleIoSupported : 1; // RO
UINT32 DualIoSupported : 1; // RO
UINT32 QuadIoSupported : 1; // RO
UINT32 MaximumTouchPoints : 8; // RO
UINT32 MaximumResetTime : 4; // RO
UINT32 HeartBeatReportSupported : 1; // RO
UINT32 Reserved : 7; // RO
UINT32 PerformanceLimitation : 3; // RO
UINT32 PrepForRegisterRead : 1; // RO
} Fields;
UINT32 Data;
} TOUCH_CAPABILITIES;
typedef union {
struct {
UINT32 EdsMinorVersion : 8; // RO
UINT32 EdsMajorVersion : 8; // RO
UINT32 InterfaceRevisionNumber : 8; // RO
UINT32 EuKernelCompatibilityVersion : 8; // RO
} Fields;
UINT32 Data;
} TOUCH_COMPATIBILITY_ID;
typedef struct {
UINT32 TouchIntCause; // Touch Interrupt Cause 0x0
UINT32 TouchErr; // Touch Error 0x4
TOUCH_DATA_SIZE TouchDataSize; // Touch Data Size 0x8
TOUCH_CONFIG TouchCfg; // Touch Configuration 0xC
TOUCH_STATE TouchState; // Touch Configuration 0x10
UINT32 TouchId; // Touch ID 0x14
TOUCH_CAPABILITIES TouchCapabilities; // Touch Capabilities 0x18
UINT32 TouchIcHwId; // Touch IC HW ID 0x1C
UINT32 TouchIcHwRev; // Touch IC HW Revision 0x20
UINT32 TouchIcFwRev; // Touch IC FW Revision 0x24
UINT32 TouchCommand; // Reserved Registers 0x28
UINT32 TouchInit; // Reserved Registers 0x2C
UINT32 Reserved[1]; // Reserved Registers 0x30
TOUCH_COMPATIBILITY_ID TouchCompatibilityId; // Touch Compatibility ID 0x34
UINT32 Reserved2[2]; // Reserved Registers 0x38
} THC_DEVICE_REGISTERS;
typedef union {
struct {
UINT32 TssGo : 1; // THC SW Sequence Cycle Go RW/1S/V
UINT32 ThcSsCdIe : 1; // THC SW Sequencing Cycle Done Interrupt Enable RW
UINT32 ThcSsBtaEn : 1; // THC SW Sequencing Bus Turnaround Enable RW, In SPI mode, this bit is not used.
UINT32 Rsvd0 : 1; // RSVD RO
UINT32 TsiSsPType : 1; // TSI SW Sequencing Bus Packet Type RW, In SPI mode, this bit is not used.
UINT32 ThcSsTrCt : 1; // THC SW Sequencing Command Type RW
UINT32 Rsvd1 : 2; // RSVD RO
UINT32 ThcSsCmd : 8; // THC SW Sequencing Bus Command RW
UINT32 ThcSsBc : 16; // THC SW Sequencing Bus Word Byte Count RW
} Fields;
UINT32 Data;
} THC_M_PRT_SW_SEQ_CNTRL;
typedef union {
struct {
UINT32 Pcd : 7; // RW CB Depth for the 2nd RXDMA
UINT32 Rsvd0 : 1; // RO RSVD
UINT32 Ptec : 8; // RW Table Entry Count for the 2nd RXDMA
UINT32 PreFetchWm : 4; // RW PRD prefetch Watermark for the 2nd RXDMA
UINT32 Rsvd1 : 12; // RO Reserved
} Fields;
UINT32 Data;
} THC_M_PRT_RPRD_CNTRL_2;
typedef union {
struct {
UINT32 Start : 1; // RW/V Start for the 2nd RXDMA
UINT32 IeError : 1; // RW Interrupt Enable on Error for the 2nd RXDMA
UINT32 IeIoC : 1; // RW Interrupt Enable on Completion for the 2nd RXDMA
UINT32 IeStall : 1; // RW Interrupt Enable on Stall for the 2nd RXDMA
UINT32 Rsvd0 : 1; // RO RSVD
UINT32 IeEof : 1; // RW Interrupt Enable at EOF for the 2nd RXDMA
UINT32 Rsvd1 : 1; // RO RSVD
UINT32 IeDmaCpl : 1; // RW Interrupt Enable on DMA Completion for the 2nd RXDMA
UINT32 ThcPrdCbReadPointer : 8; // RO/V THC PRD CB Read Pointer for the 2nd RXDMA
UINT32 ThcPrdCbWritePointer : 8; // RW/V THC PRD CB Write Pointer for the 2nd RXDMA
UINT32 Rsvd2 : 4; // RO Reserved
UINT32 IntSwDmaEn : 1; // RW/L Interrupt SW Enable on DMA Device Interrupt for the 2nd RXDMA
UINT32 StopOverFlow : 1; // RW Stop on Overflow for the 2nd RXDMA
UINT32 UpdateHwStatus : 1; // RO Update HwStatus for the 2nd RXDMA
UINT32 ThcPrdCbPointerReset : 1; // RW/1S/V THC PRD CB Pointer Reset for the 2nd RXDMA
} Fields;
UINT32 Data;
} THC_M_PRT_READ_DMA_CNTRL_2;
typedef union {
struct {
UINT32 ThcWrDmaStart : 1; // RW/V Start WRDMA
UINT32 ThcWrDmaIeIocError : 1; // RW Interrupt Enable on Error for WRDMA
UINT32 ThcWrDmaIeIoc : 1; // RW Interrupt Enable on IOC for WRDMA
UINT32 ThcWrDmaIeDmaCpl : 1; // RW Interrupt Enable on WRDMA Completion
UINT32 Rsvd0 : 19; // RO RSVD
UINT32 ThcWrDmaUhs : 1; // RO Update HW Status for WRDMA
UINT32 ThcWrDmaPtec : 8; // RW PRD Table Entry Count for WRDMA
} Fields;
UINT32 Data;
} THC_M_PRT_WRITE_DMA_CNTRL;
typedef union {
struct {
/**
RW/V
Set upon successful completion of the Write DMA operation or by the rising edge of the Error bit.
If the THC_WRDMA_IE_IOC_DMACPL bit is also 1, then an interrupt is generated.
In polling mode, when THC_WRDMA_IE_IOC_DMACPL=0, SW clears the bit by writing 1 to the bit.
**/
UINT32 ThcWrDmaCmplStatus : 1;
UINT32 ThcWrDmaErrorStatus : 1; // RW Error encountered during write DMA operation.
UINT32 ThcWrDmaIocStatus : 1; // RO A PRD entry with IOC bit set has been completed during WRDMA operation.
UINT32 ThcWrDmaActive : 1; // RW Write DMA is active.
UINT32 Rsvd0 : 28; // RO RSVD
} Fields;
UINT32 Data;
} THC_M_PRT_DMA_INT_STS;
//128bit - 16 bytes
typedef struct {
/**
This field indicates the destination of the DMA in 64 bit host memory, Hardware supports a
minimum alignment of 1KB. Software may choose a different fragmentation, so long as it is
greater than 1KB (ex: 4KB).
**/
UINT64 DestinationAddress : 54; //53:0
UINT64 Reserved1 : 9; //54:62
UINT64 InterruptOnCompletion : 1; //63
/**
The length of the DMA for this PRD Entry must be byte aligned with a maximum transfer length of 16MB-1.
HW updates this field when the data corresponding to this entry is received. The length field is 1-
based. Value 1 means 1 byte. Zero length PRD entry is not valid. A PRD entry's length must be
multiple of 4KBytes except for the last entry in a PRD table. The last entry can be any size from 1
Byte to 1M-1 Bytes.
**/
UINT64 Length : 24; //87:64
/**
End of PRD (EOP)
This bit indicates that this PRD entry is the final entry in the PRD table.
It is updated by HW when it receives the last packet of a frame.
**/
UINT64 EndOfPrd : 1; //88
/**
HW Status: These bits are set by HW if the UHS bit is set after completing a PRD. It is cleared by
SW after being consumed.
Values:
0: SW Reset Value
1: Completed Successfully. This bit is set in the first PRD Entry with the EOP bit set upon successful
PRD table completion.
2: Completed with error. This bit is set in the PRD Entry where an error occurs such that the read
DMA stops processing PRD entries.
3: Rx Buffer overflow before this frame is received. There could be multiple frames got dropped
before this status is set.
**/
UINT64 HwStatus : 2; //90:89
UINT64 Reserved2 : 37; //127:91
} PRD_ENTRY;
typedef struct {
PRD_ENTRY Entries[PRD_MAX_ENTRIES];
} PRD_TABLE;
typedef struct {
EFI_PHYSICAL_ADDRESS Buffer;
EFI_PHYSICAL_ADDRESS DevAddr;
VOID *Mapping;
PRD_ENTRY Entries[PRD_MAX_ENTRIES];
UINT32 NumOfConfiguredEntries;
} DRIVER_PRD_TABLE;
typedef struct {
EFI_PHYSICAL_ADDRESS CommonPrdBuffer;
EFI_PHYSICAL_ADDRESS CommonPrdBufferDevAddr;
VOID *CommonPrdBufferMapping;
DRIVER_PRD_TABLE DriverPrdTable[PRD_MAX_TABLES_SUPPORTED];
UINT32 NumOfPrdTables;
UINT32 BufferSize;
} THC_DMA;
typedef struct {
UINT32 WriteDataType; // This refers to the enumerated type above
/**
This field designates the amount of data to follow the header
The WriteDataLen should result in a DWORD alignment.
**/
UINT32 WriteDataLength;
//UINT8 WriteData[1];
} THC_WRITE_DATA_HDR;
//
// This data structure describes the header prepended to all data written to the
// Touch IC at the bulk data write (0x1000 + SPI_OFFSET [from the feedback buffer])
//
typedef enum {
FW_STAGE1_LOAD = 0,
FW_STAGE2_LOAD = 1,
FEEDBACK_DATA = 2,
SET_FEATURES_DATA = 3,
GET_FEATURES_DATA = 4,
OUTPUT_REPORT_DATA = 5,
DATA_LOAD = 6,
TCTL_REQUEST = 7,
IMAGE_NOT_AVAILABLE = 8,
MAX_WRITE_DATA_TYPES = 9
} THC_WRITE_DATA_TYPE;
typedef enum {
ThcFreqLow2p1MHz = 0,
ThcFreqLow2p5MHz = 1,
ThcFreqLow3MHz = 2,
ThcFreqLow3p75MHz = 3,
ThcFreqLow5MHz = 4,
ThcFreqLow7p5MHz = 5,
ThcFreqLow15MHz = 6,
ThcFreqHigh17MHz = 7,
ThcFreqHigh20MHz = 8,
ThcFreqHigh24MHz = 9,
ThcFreqHigh30MHz = 10,
ThcFreqHigh40MHz = 11,
ThcFreqInvalid
} THC_PORT_FREQUENCY;
typedef enum {
ThcEdsFreq7p812MHz = 0xA, // 1010b
ThcEdsFreq15p62MHz = 0x9, // 1001b
ThcEdsFreq17p86MHz = 0x7, // 0111b
ThcEdsFreq20p83MHz = 0x6, // 0110b
ThcEdsFreq25MHz = 0x5, // 0101b
ThcEdsFreq31p25MHz = 0x4, // 0100b
ThcEdsFreq41p67MHz = 0x3, // 0011b
} THC_EDS_FREQUENCY;
typedef enum {
NoInterruptPending = 0,
ReadDataAvailable = 1, // - indicates data is ready to be read.
ResetOccurred = 2, // - indicates a reset occurred.
ErrorOccurred = 3, // - indicates an error occurred.
ConfigChange = 4 // - indicates the value of the TOUCH_CONFIG register has changed by the Touch IC.
} THC_INTERRUPT_TYPE;
typedef enum {
IoReadyTimeout = 100,
StartQuiesceTimeout = 300,
EndQuiesceTimeout = 700,
OutOfResetTimeout = 300,
WaitForResetTimeout = 250, // multiplied by the reset attempt count
CycleTimeout = 1000,
WritePollingTimeout = 100,
PollingLoopTimeout = 100000, // MicroSeconds
HidResponseTimeout = 10000
} THC_TIMERS;
typedef enum {
ThcPioRead = 0x4,
ThcPioWrite = 0x6
} PIO_OP;
//
// Touch Control Structure
// When the WriteDataHdr::WriteDataType field is set to TCTL_REQUEST, the
// WriteData[] array contains the TouchCtl structure, below:
//
typedef enum {
TCTL_GET_HID_REPORT_DESCRIPTOR = 0,
TCTL_MAX_COMMANDS = 1
} THC_TCTL_COMMAND;
typedef enum {
TCTL_SUCCESS = 0,
TCTL_ERROR = 1, // Generic Error for TCTLs.
TCTL_NOT_SUPPORTED = 2, // The TCTL command is not supported by the Touch IC.
TCTL_MAX_STATUS = 3
} THC_TCTL_STATUS;
typedef struct {
THC_TCTL_COMMAND TctlCmdCode; // The IOCTL command requested by the THC Controller.
THC_TCTL_STATUS TctlStatus;
UINT8 TctlData[1]; // This is additional data that is specific to the
// TCTL_COMMAND being used.
} THC_CTL;
typedef struct {
UINT32 ID;
UINT32 Value;
} HID_REPORT_DESCRIPTOR_TOKEN;
typedef struct {
UINTN ReportId;
UINTN MaxX;
UINTN StartX;
UINTN StopX;
UINTN MaxY;
UINTN StartY;
UINTN StopY;
UINTN Button;
} HID_REPORT_DESCRIPTOR;
#define MAX_HID_COLLECTION 256
#define USE_PAGE 0x01
#define DIGITIZER 0x0D
#define DESKTOP 0x01
#define USAGE 0x02
#define TOUCHPANEL 0x04
#define TIP_SWITCH 0x42
#define X_AXIS 0x30
#define Y_AXIS 0x31
#define REPORT_ID 0x21
#define LOG_MIN 0x05
#define LOG_MAX 0x09
#define REP_SIZE 0x1d
#define REP_COUNT 0x25
#define INPUT 0x20
#define OUTPUT 0x24
#define COLLECTION 0x28
#define APPLICATION 0x01
#define LOGICAL 0x02
#define END_COLLECTION 0x30
typedef struct {
UINT32 ID;
UINT32 Value;
} HID_TOKEN;
typedef struct {
UINT32 B;
UINT32 X;
UINT32 Y;
} HID_TOUCH_OUTPUT;
typedef struct {
UINTN MinX;
UINTN MaxX;
UINTN MinY;
UINTN MaxY;
} HID_XY_BOUNDARY;
typedef struct {
UINT8 HIDDescLengthLsb;
UINT8 HIDDescLengthMsb;
UINT8 BcdVersionLsb;
UINT8 BcdVersionMsb;
UINT8 ReportDescRegLengthLsb;
UINT8 ReportDescRegLengthMsb;
UINT8 ReportDescRegisterLsb;
UINT8 ReportDescRegisterMsb;
UINT8 InputRegisterLsb;
UINT8 InputRegisterMsb;
UINT8 MaxInputLengthLsb;
UINT8 MaxInputLengthMsb;
UINT8 OutputRegisterLsb;
UINT8 OutputRegisterMsb;
UINT8 MaxOutputLengthLsb;
UINT8 MaxOutputLengthMsb;
UINT8 CommandRegisterLsb;
UINT8 CommandRegisterMsb;
UINT8 DataRegisterLsb;
UINT8 DataRegisterMsb;
UINT16 VendorId;
UINT16 ProductId;
UINT16 VersionId;
UINT16 Reserved;
UINT16 Reserved2;
} HID_DESC;
// dictionary for parsing incoming data from touchpanel
typedef struct {
UINT32 LogMaxX; // max and min values for X and Y axes
UINT32 LogMinX;
UINT32 LogMaxY;
UINT32 LogMinY;
UINT32 BitStartB; // bit positions of Buttons state /X coordinates / Y coordinates in input stream
UINT32 BitStopB; // bit positions are calculated in pure input data (after cutting Length and reportID)
UINT32 BitStartX;
UINT32 BitStopX;
UINT32 BitStartY;
UINT32 BitStopY;
UINT32 BitsTotal; // total number of bits with declared purpose
BOOLEAN ValidCollection;
} HID_INPUT_REPORT_COLLECTION;
// dictionary for parsing incoming data from touchpanel
typedef struct {
UINT32 Id; // ReportID. 0 means panel doesn't send ReportIDs, and it also means there is only 1 format
UINT32 CollectionCount;
HID_INPUT_REPORT_COLLECTION Collection[MAX_HID_COLLECTION];
} HID_INPUT_REPORT_FORMAT;
// set of dictionaries for parsing incoming data from touchpanel
typedef struct {
UINT32 Quantity; // number of different report formats
UINT32 TouchPanel; // flag to determine if this device is a touchpanel and not e.g. touchpad
HID_INPUT_REPORT_FORMAT *Report; // pointer to array of dictionaries for report formats
} HID_INPUT_REPORT_TABLE;
typedef struct {
UINT32 GlobalUsage;
UINT32 Usages;
UINT32 UsageB;
UINT32 UsageX;
UINT32 UsageY;
UINT32 LogMax;
UINT32 LogMin;
UINT32 ReportSize;
UINT32 ReportCount;
UINT32 GlobalUsageOnStack;
UINT32 ReportSizeOnStack;
UINT32 ReportCountOnStack;
UINT32 TouchPanelUsage;
HID_INPUT_REPORT_FORMAT TempReport;
} HID_PARSER_STACK;
#pragma pack(pop)
typedef struct {
UINTN Signature;
EFI_HANDLE ControllerHandle;
EFI_UNICODE_STRING_TABLE *ControllerNameTable;
EFI_PCI_IO_PROTOCOL *PciIo;
UINT64 PciAttributes;
UINT64 PciBar0;
UINT8 PciPwrst;
THC_DEVICE_REGISTERS DeviceRegisters;
THC_DMA DmaRead2; // Only RxDma2 used in HID AbsPtrMode
THC_DMA DmaWrite;
THC_PROTOCOL ThcProtocol;
EFI_ABSOLUTE_POINTER_PROTOCOL AbsPtrProtocol;
EFI_ABSOLUTE_POINTER_MODE AbsPtrMode;
EFI_ABSOLUTE_POINTER_STATE AbsPtrTouchData;
BOOLEAN AbsPtrDataAvailable;
UINT8 *HidBuffer;
BOOLEAN HidActive;
BOOLEAN HidDataAvailable;
EFI_EVENT PollingEvent;
EFI_EVENT ExitEvent;
SINGLE_FINGER_REPORT Report;
BOOLEAN ReadDone;
BOOLEAN Initialized;
HID_INPUT_REPORT_TABLE InputReportTable;
} THC_DEV;
#endif
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