isafloppy.h
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/*++
Copyright (c) 2006, Intel Corporation
All rights reserved. This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
Module Name:
IsaFloppy.h
Abstract:
Include for ISA Floppy Driver
Define the data structure and so on
Revision History:
--*/
#ifndef _ISA_FLOPPY_H
#define _ISA_FLOPPY_H
#include "Tiano.h"
#include "EfiDriverLib.h"
#include "EfiStatusCode.h"
#include "..\..\IsaIoDefinitions.h"
#include "EfiCompNameSupport.h"
//
// Driver Consumed Protocol Prototypes
//
#include EFI_PROTOCOL_DEFINITION (ComponentName)
#include EFI_PROTOCOL_DEFINITION (DevicePath)
#include EFI_GUID_DEFINITION (StatusCode)
#include EFI_GUID_DEFINITION (StatusCodeDataTypeId)
#include EFI_GUID_DEFINITION (StatusCodeCallerId)
//
// Driver Produced Protocol Prototypes
//
#include EFI_PROTOCOL_DEFINITION (DriverBinding)
#include EFI_PROTOCOL_DEFINITION (BlockIo)
//
// define some value
//
#define STALL_1_SECOND 1000000
#define STALL_1_MSECOND 1000
#define DATA_IN 1
#define DATA_OUT 0
#define READ 0
#define WRITE 1
//
// Internal Data Structures
//
#define FDC_BLK_IO_DEV_SIGNATURE EFI_SIGNATURE_32 ('F', 'B', 'I', 'O')
#define FLOPPY_CONTROLLER_CONTEXT_SIGNATURE EFI_SIGNATURE_32 ('F', 'D', 'C', 'C')
typedef enum {
FDC_DISK0 = 0,
FDC_DISK1 = 1,
FDC_MAX_DISK= 2
} EFI_FDC_DISK;
typedef struct {
UINT32 Signature;
EFI_LIST_ENTRY Link;
BOOLEAN FddResetPerformed;
EFI_STATUS FddResetStatus;
BOOLEAN NeedRecalibrate;
UINT8 NumberOfDrive;
UINT16 BaseAddress;
} FLOPPY_CONTROLLER_CONTEXT;
typedef struct {
UINTN Signature;
EFI_HANDLE Handle;
EFI_BLOCK_IO_PROTOCOL BlkIo;
EFI_BLOCK_IO_MEDIA BlkMedia;
EFI_INTERFACE_DEFINITION_FOR_ISA_IO *IsaIo;
UINT16 BaseAddress;
EFI_FDC_DISK Disk;
UINT8 PresentCylinderNumber;
UINT8 *Cache;
EFI_EVENT Event;
EFI_UNICODE_STRING_TABLE *ControllerNameTable;
FLOPPY_CONTROLLER_CONTEXT *ControllerState;
EFI_DEVICE_PATH_PROTOCOL *DevicePath;
} FDC_BLK_IO_DEV;
#ifndef SIZE_REDUCTION_ISA_COMBINED
#include "ComponentName.h"
#else
#define ADD_FLOPPY_NAME(x)
#endif
#define FDD_BLK_IO_FROM_THIS(a) CR (a, FDC_BLK_IO_DEV, BlkIo, FDC_BLK_IO_DEV_SIGNATURE)
#define FLOPPY_CONTROLLER_FROM_LIST_ENTRY(a) \
CR (a, \
FLOPPY_CONTROLLER_CONTEXT, \
Link, \
FLOPPY_CONTROLLER_CONTEXT_SIGNATURE \
)
#define DISK_1440K_EOT 0x12
#define DISK_1440K_GPL 0x1b
#define DISK_1440K_DTL 0xff
#define DISK_1440K_NUMBER 0x02
#define DISK_1440K_MAXTRACKNUM 0x4f
#define DISK_1440K_BYTEPERSECTOR 512
typedef struct {
UINT8 CommandCode;
UINT8 DiskHeadSel;
UINT8 Cylinder;
UINT8 Head;
UINT8 Sector;
UINT8 Number;
UINT8 EndOfTrack;
UINT8 GapLength;
UINT8 DataLength;
} FDD_COMMAND_PACKET1;
typedef struct {
UINT8 CommandCode;
UINT8 DiskHeadSel;
} FDD_COMMAND_PACKET2;
typedef struct {
UINT8 CommandCode;
UINT8 SrtHut;
UINT8 HltNd;
} FDD_SPECIFY_CMD;
typedef struct {
UINT8 CommandCode;
UINT8 DiskHeadSel;
UINT8 NewCylinder;
} FDD_SEEK_CMD;
typedef struct {
UINT8 CommandCode;
UINT8 DiskHeadSel;
UINT8 Cylinder;
UINT8 Head;
UINT8 Sector;
UINT8 EndOfTrack;
UINT8 GapLength;
UINT8 ScanTestPause;
} FDD_SCAN_CMD;
typedef struct {
UINT8 Status0;
UINT8 Status1;
UINT8 Status2;
UINT8 C;
UINT8 H;
UINT8 S;
UINT8 Number;
} FDD_RESULT_PACKET;
//
// FDC Registers
//
//
// 0x3F2 Digital Output Register
//
#define FDC_REGISTER_DOR 2
//
// 0x3F4 Main Status Register
//
#define FDC_REGISTER_MSR 4
//
// 0x3F5 Data Register
//
#define FDC_REGISTER_DTR 5
//
// 0x3F7 Configuration Control Register(data rate select)
//
#define FDC_REGISTER_CCR 7
//
// 0x3F7 Digital Input Register(diskchange)
//
#define FDC_REGISTER_DIR 7
//
// Set up mask bit
//
#define BIT0 (1 << 0)
#define BIT1 (1 << 1)
#define BIT2 (1 << 2)
#define BIT3 (1 << 3)
#define BIT4 (1 << 4)
#define BIT5 (1 << 5)
#define BIT6 (1 << 6)
#define BIT7 (1 << 7)
//
// FDC Register Bit Definitions
//
//
// Digital Out Register(WO)
//
//
// Select Drive: 0=A 1=B
//
#define SELECT_DRV BIT0
//
// Reset FDC
//
#define RESET_FDC BIT2
//
// Enable Int & DMA
//
#define INT_DMA_ENABLE BIT3
//
// Turn On Drive A Motor
//
#define DRVA_MOTOR_ON BIT4
//
// Turn On Drive B Motor
//
#define DRVB_MOTOR_ON BIT5
//
// Main Status Register(RO)
//
//
// Drive A Busy
//
#define MSR_DAB BIT0
//
// Drive B Busy
//
#define MSR_DBB BIT1
//
// FDC Busy
//
#define MSR_CB BIT4
//
// Non-DMA Mode
//
#define MSR_NDM BIT5
//
// Data Input/Output
//
#define MSR_DIO BIT6
//
// Request For Master
//
#define MSR_RQM BIT7
//
// Configuration Control Register(WO)
//
//
// Data Rate select
//
#define CCR_DRC (BIT0 | BIT1)
//
// Digital Input Register(RO)
//
//
// Disk change line
//
#define DIR_DCL BIT7
//
// #define CCR_DCL BIT7 // Diskette change
//
// 500K
//
#define DRC_500KBS 0x0
//
// 300K
//
#define DRC_300KBS 0x01
//
// 250K
//
#define DRC_250KBS 0x02
//
// FDC Command Code
//
#define READ_DATA_CMD 0x06
#define WRITE_DATA_CMD 0x05
#define WRITE_DEL_DATA_CMD 0x09
#define READ_DEL_DATA_CMD 0x0C
#define READ_TRACK_CMD 0x02
#define READ_ID_CMD 0x0A
#define FORMAT_TRACK_CMD 0x0D
#define SCAN_EQU_CMD 0x11
#define SCAN_LOW_EQU_CMD 0x19
#define SCAN_HIGH_EQU_CMD 0x1D
#define SEEK_CMD 0x0F
#define RECALIBRATE_CMD 0x07
#define SENSE_INT_STATUS_CMD 0x08
#define SPECIFY_CMD 0x03
#define SENSE_DRV_STATUS_CMD 0x04
//
// CMD_MT: Multi_Track Selector
// when set , this flag selects the multi-track operating mode.
// In this mode, the FDC treats a complete cylinder under head0 and 1
// as a single track
//
#define CMD_MT BIT7
//
// CMD_MFM: MFM/FM Mode Selector
// A one selects the double density(MFM) mode
// A zero selects single density (FM) mode
//
#define CMD_MFM BIT6
//
// CMD_SK: Skip Flag
// When set to 1, sectors containing a deleted data address mark will
// automatically be skipped during the execution of Read Data.
// When set to 0, the sector is read or written the same as the read and
// write commands.
//
#define CMD_SK BIT5
//
// FDC Status Register Bit Definitions
//
//
// Status Register 0
//
//
// Interrupt Code
//
#define STS0_IC (BIT7 | BIT6)
//
// Seek End: the FDC completed a seek or recalibrate command
//
#define STS0_SE BIT5
//
// Equipment Check
//
#define STS0_EC BIT4
//
// Not Ready(unused), this bit is always 0
//
#define STS0_NR BIT3
//
// Head Address: the current head address
//
#define STS0_HA BIT2
//
// STS0_US1 & STS0_US0: Drive Select(the current selected drive)
//
//
// Unit Select1
//
#define STS0_US1 BIT1
//
// Unit Select0
//
#define STS0_US0 BIT0
//
// Status Register 1
//
//
// End of Cylinder
//
#define STS1_EN BIT7
//
// BIT6 is unused
//
//
// Data Error: The FDC detected a CRC error in either the ID field or
// data field of a sector
//
#define STS1_DE BIT5
//
// Overrun/Underrun: Becomes set if FDC does not receive CPU or DMA service
// within the required time interval
//
#define STS1_OR BIT4
//
// BIT3 is unused
//
//
// No data
//
#define STS1_ND BIT2
//
// Not Writable
//
#define STS1_NW BIT1
//
// Missing Address Mark
//
#define STS1_MA BIT0
//
// Control Mark
//
#define STS2_CM BIT6
//
// Data Error in Data Field: The FDC detected a CRC error in the data field
//
#define STS2_DD BIT5
//
// Wrong Cylinder: The track address from sector ID field is different from
// the track address maintained inside FDC
//
#define STS2_WC BIT4
//
// Bad Cylinder
//
#define STS2_BC BIT1
//
// Missing Address Mark in Data Field
//
#define STS2_MD BIT0
//
// Write Protected
//
#define STS3_WP BIT6
//
// Track 0
//
#define STS3_T0 BIT4
//
// Head Address
//
#define STS3_HD BIT2
//
// STS3_US1 & STS3_US0 : Drive Select
//
#define STS3_US1 BIT1
#define STS3_US0 BIT0
//
// Status Register 0 Interrupt Code Description
//
//
// Normal Termination of Command
//
#define IC_NT 0x0
//
// Abnormal Termination of Command
//
#define IC_AT 0x40
//
// Invalid Command
//
#define IC_IC 0x80
//
// Abnormal Termination caused by Polling
//
#define IC_ATRC 0xC0
//
// Global Variables
//
extern EFI_DRIVER_BINDING_PROTOCOL gFdcControllerDriver;
//
// EFI Driver Binding Protocol Functions
//
EFI_STATUS
EFIAPI
FdcControllerDriverSupported (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
)
/*++
Routine Description:
GC_TODO: Add function description
Arguments:
This - GC_TODO: add argument description
Controller - GC_TODO: add argument description
RemainingDevicePath - GC_TODO: add argument description
Returns:
GC_TODO: add return values
--*/
;
EFI_STATUS
EFIAPI
FdcControllerDriverStart (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
)
/*++
Routine Description:
GC_TODO: Add function description
Arguments:
This - GC_TODO: add argument description
Controller - GC_TODO: add argument description
RemainingDevicePath - GC_TODO: add argument description
Returns:
GC_TODO: add return values
--*/
;
EFI_STATUS
EFIAPI
FdcControllerDriverStop (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN UINTN NumberOfChildren,
IN EFI_HANDLE *ChildHandleBuffer
)
/*++
Routine Description:
GC_TODO: Add function description
Arguments:
This - GC_TODO: add argument description
Controller - GC_TODO: add argument description
NumberOfChildren - GC_TODO: add argument description
ChildHandleBuffer - GC_TODO: add argument description
Returns:
GC_TODO: add return values
--*/
;
//
// EFI Block I/O Protocol Functions
//
EFI_STATUS
EFIAPI
FdcReset (
IN EFI_BLOCK_IO_PROTOCOL *This,
IN BOOLEAN ExtendedVerification
)
/*++
Routine Description:
GC_TODO: Add function description
Arguments:
This - GC_TODO: add argument description
ExtendedVerification - GC_TODO: add argument description
Returns:
GC_TODO: add return values
--*/
;
EFI_STATUS
EFIAPI
FddFlushBlocks (
IN EFI_BLOCK_IO_PROTOCOL *This
)
/*++
Routine Description:
GC_TODO: Add function description
Arguments:
This - GC_TODO: add argument description
Returns:
GC_TODO: add return values
--*/
;
EFI_STATUS
EFIAPI
FddReadBlocks (
IN EFI_BLOCK_IO_PROTOCOL *This,
IN UINT32 MediaId,
IN EFI_LBA LBA,
IN UINTN BufferSize,
OUT VOID *Buffer
)
/*++
Routine Description:
GC_TODO: Add function description
Arguments:
This - GC_TODO: add argument description
MediaId - GC_TODO: add argument description
LBA - GC_TODO: add argument description
BufferSize - GC_TODO: add argument description
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