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390 lines
7.8 KiB
C
390 lines
7.8 KiB
C
/** @file
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PS2 Mouse Communication Interface
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Copyright (c) 2006 - 2016, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#ifndef _COMMPS2_H_
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#define _COMMPS2_H_
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#include "Ps2Mouse.h"
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#define PS2_PACKET_LENGTH 3
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#define PS2_SYNC_MASK 0xc
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#define PS2_SYNC_BYTE 0x8
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#define IS_PS2_SYNC_BYTE(byte) ((byte & PS2_SYNC_MASK) == PS2_SYNC_BYTE)
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#define PS2_READ_BYTE_ONE 0
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#define PS2_READ_DATA_BYTE 1
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#define PS2_PROCESS_PACKET 2
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#define TIMEOUT 50000
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#define BAT_TIMEOUT 500000
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//
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// 8042 I/O Port
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//
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#define KBC_DATA_PORT 0x60
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#define KBC_CMD_STS_PORT 0x64
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//
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// 8042 Command
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//
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#define READ_CMD_BYTE 0x20
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#define WRITE_CMD_BYTE 0x60
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#define DISABLE_AUX 0xa7
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#define ENABLE_AUX 0xa8
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#define SELF_TEST 0xaa
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#define DISABLE_KB 0xad
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#define ENABLE_KB 0xae
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#define WRITE_AUX_DEV 0xd4
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#define CMD_SYS_FLAG 0x04
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#define CMD_KB_STS 0x10
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#define CMD_KB_DIS 0x10
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#define CMD_KB_EN 0x0
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//
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// 8042 Auxiliary Device Command
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//
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#define SETSF1_CMD 0xe6
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#define SETSF2_CMD 0xe7
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#define SETRE_CMD 0xe8
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#define READ_CMD 0xeb
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#define SETRM_CMD 0xf0
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#define SETSR_CMD 0xf3
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#define ENABLE_CMD 0xf4
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#define DISABLE_CMD 0xf5
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#define RESET_CMD 0xff
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//
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// return code
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//
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#define PS2_ACK 0xfa
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#define PS2_RESEND 0xfe
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#define PS2MOUSE_BAT1 0xaa
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#define PS2MOUSE_BAT2 0x0
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//
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// Keyboard Controller Status
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//
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///
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/// Parity Error
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///
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#define KBC_PARE 0x80
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///
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/// General Time Out
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///
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#define KBC_TIM 0x40
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///
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/// Output buffer for auxiliary device (PS/2):
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/// 0 - Holds keyboard data
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/// 1 - Holds data for auxiliary device
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///
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#define KBC_AUXB 0x20
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///
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/// Keyboard lock status:
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/// 0 - keyboard locked
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/// 1 - keyboard free
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///
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#define KBC_KEYL 0x10
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///
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/// Command/Data:
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/// 0 - data byte written via port 60h
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/// 1 - command byte written via port 64h
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///
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#define KBC_CD 0x08
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///
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/// System Flag:
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/// 0 - power-on reset
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/// 1 - self-test successful
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///
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#define KBC_SYSF 0x04
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///
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/// Input Buffer Status :
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/// 0 - input buffer empty
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/// 1 - CPU data in input buffer
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///
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#define KBC_INPB 0x02
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///
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/// Output Buffer Status :
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/// 0 - output buffer empty
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/// 1 - keyboard controller data in output buffer
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///
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#define KBC_OUTB 0x01
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/**
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Issue self test command via IsaIo interface.
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@return EFI_SUCCESS Success to do keyboard self testing.
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@return others Fail to do keyboard self testing.
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**/
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EFI_STATUS
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KbcSelfTest (
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VOID
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);
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/**
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Issue command to enable keyboard AUX functionality.
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@return Status of command issuing.
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**/
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EFI_STATUS
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KbcEnableAux (
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VOID
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);
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/**
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Issue command to disable keyboard AUX functionality.
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@return Status of command issuing.
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**/
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EFI_STATUS
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KbcDisableAux (
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VOID
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);
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/**
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Issue command to enable keyboard.
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@return Status of command issuing.
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**/
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EFI_STATUS
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KbcEnableKb (
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VOID
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);
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/**
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Issue command to disable keyboard.
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@return Status of command issuing.
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**/
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EFI_STATUS
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KbcDisableKb (
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VOID
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);
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/**
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Issue command to check keyboard status.
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@param KeyboardEnable return whether keyboard is enable.
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@return Status of command issuing.
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**/
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EFI_STATUS
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CheckKbStatus (
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OUT BOOLEAN *KeyboardEnable
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);
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/**
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Issue command to reset keyboard.
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@return Status of command issuing.
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**/
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EFI_STATUS
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PS2MouseReset (
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VOID
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);
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/**
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Issue command to set mouse's sample rate
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@param SampleRate value of sample rate
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@return Status of command issuing.
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**/
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EFI_STATUS
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PS2MouseSetSampleRate (
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IN MOUSE_SR SampleRate
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);
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/**
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Issue command to set mouse's resolution.
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@param Resolution value of resolution
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@return Status of command issuing.
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**/
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EFI_STATUS
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PS2MouseSetResolution (
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IN MOUSE_RE Resolution
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);
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/**
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Issue command to set mouse's scaling.
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@param Scaling value of scaling
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@return Status of command issuing.
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**/
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EFI_STATUS
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PS2MouseSetScaling (
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IN MOUSE_SF Scaling
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);
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/**
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Issue command to enable Ps2 mouse.
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@return Status of command issuing.
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**/
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EFI_STATUS
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PS2MouseEnable (
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VOID
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);
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/**
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Get mouse packet . Only care first 3 bytes
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@param MouseDev Pointer of PS2 Mouse Private Data Structure
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@retval EFI_NOT_READY Mouse Device not ready to input data packet, or some error happened during getting the packet
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@retval EFI_SUCCESS The data packet is gotten successfully.
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**/
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EFI_STATUS
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PS2MouseGetPacket (
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PS2_MOUSE_DEV *MouseDev
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);
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/**
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Read data via IsaIo protocol with given number.
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@param Buffer Buffer receive data of mouse
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@param BufSize The size of buffer
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@param State Check input or read data
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@return status of reading mouse data.
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**/
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EFI_STATUS
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PS2MouseRead (
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OUT UINT8 *Buffer,
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IN OUT UINTN *BufSize,
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IN UINTN State
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);
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//
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// 8042 I/O function
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//
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/**
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I/O work flow of outing 8042 command.
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@param Command I/O command.
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@retval EFI_SUCCESS Success to execute I/O work flow
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@retval EFI_TIMEOUT Keyboard controller time out.
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**/
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EFI_STATUS
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Out8042Command (
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IN UINT8 Command
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);
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/**
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I/O work flow of in 8042 data.
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@param Data Data value
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@retval EFI_SUCCESS Success to execute I/O work flow
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@retval EFI_TIMEOUT Keyboard controller time out.
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**/
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EFI_STATUS
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In8042Data (
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IN OUT UINT8 *Data
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);
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/**
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I/O work flow of outing 8042 data.
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@param Data Data value
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@retval EFI_SUCCESS Success to execute I/O work flow
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@retval EFI_TIMEOUT Keyboard controller time out.
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**/
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EFI_STATUS
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Out8042Data (
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IN UINT8 Data
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);
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/**
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I/O work flow of outing 8042 Aux command.
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@param Command Aux I/O command
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@param Resend Whether need resend the Aux command.
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@retval EFI_SUCCESS Success to execute I/O work flow
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@retval EFI_TIMEOUT Keyboard controller time out.
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**/
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EFI_STATUS
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Out8042AuxCommand (
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IN UINT8 Command,
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IN BOOLEAN Resend
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);
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/**
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I/O work flow of in 8042 Aux data.
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@param Data Buffer holding return value.
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@retval EFI_SUCCESS Success to execute I/O work flow
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@retval EFI_TIMEOUT Keyboard controller time out.
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**/
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EFI_STATUS
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In8042AuxData (
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IN OUT UINT8 *Data
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);
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/**
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I/O work flow of outing 8042 Aux data.
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@param Data Buffer holding return value
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@retval EFI_SUCCESS Success to execute I/O work flow
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@retval EFI_TIMEOUT Keyboard controller time out.
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**/
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EFI_STATUS
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Out8042AuxData (
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IN UINT8 Data
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);
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/**
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Check keyboard controller status, if it is output buffer full and for auxiliary device.
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@retval EFI_SUCCESS Keyboard controller is ready
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@retval EFI_NOT_READY Keyboard controller is not ready
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**/
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EFI_STATUS
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CheckForInput (
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VOID
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);
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/**
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I/O work flow to wait input buffer empty in given time.
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@param Timeout Wating time.
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@retval EFI_TIMEOUT if input is still not empty in given time.
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@retval EFI_SUCCESS input is empty.
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**/
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EFI_STATUS
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WaitInputEmpty (
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IN UINTN Timeout
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);
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/**
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I/O work flow to wait output buffer full in given time.
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@param Timeout given time
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@retval EFI_TIMEOUT output is not full in given time
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@retval EFI_SUCCESS output is full in given time.
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**/
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EFI_STATUS
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WaitOutputFull (
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IN UINTN Timeout
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);
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#endif
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