floppy.h File Reference

#include "dma.h"
#include "irq.h"
#include "blockdev.h"
#include "semaphore.h"
#include "timer.h"
#include "sched.h"

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Classes
class	Floppy
	This is the floppy disk driver. More...
Functions
bool	really_turn_motor_off (void *floppy_void_ptr)
bool	floppy_interrupt_handler ()
Variables
Floppy *	floppy
const unsigned	DG144_HEADS = 2
const unsigned	DG144_TRACKS = 80
const unsigned	DG144_SPT = 18
const unsigned	DG144_GAP3FMT = 0x54
const unsigned	DG144_GAP3RW = 0x1b
const unsigned	DG168_HEADS = 2
const unsigned	DG168_TRACKS = 80
const unsigned	DG168_SPT = 21
const unsigned	DG168_GAP3FMT = 0x0c
const unsigned	DG168_GAP3RW = 0x1c
const unsigned	FDC_DOR = 0x3f2
const unsigned	FDC_MSR = 0x3f4
const unsigned	FDC_DRS = 0x3f4
const unsigned	FDC_DATA = 0x3f5
const unsigned	FDC_DIR = 0x3f7
const unsigned	FDC_CCR = 0x3f7
const unsigned	CMD_SPECIFY = 0x03
const unsigned	CMD_WRITE = 0xc5
const unsigned	CMD_READ = 0xe6
const unsigned	CMD_RECAL = 0x07
const unsigned	CMD_SENSEI = 0x08
const unsigned	CMD_FORMAT = 0x4d
const unsigned	CMD_SEEK = 0x0f
const unsigned	CMD_VERSION = 0x10

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Function Documentation

bool floppy_interrupt_handler (   )  [inline]

Interrupt handler called to signal the completion of an operation.

bool really_turn_motor_off (  void *  floppy_void_ptr  )

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Variable Documentation

const unsigned CMD_FORMAT = 0x4d

format track (+ MFM)

const unsigned CMD_READ = 0xe6

read data (+ MT,MFM,SK)

const unsigned CMD_RECAL = 0x07

recalibrate

const unsigned CMD_SEEK = 0x0f

seek track

const unsigned CMD_SENSEI = 0x08

sense interrupt status

const unsigned CMD_SPECIFY = 0x03

specify drive timings

const unsigned CMD_VERSION = 0x10

FDC version.

const unsigned CMD_WRITE = 0xc5

write data (+ MT,MFM)

const unsigned DG144_GAP3FMT = 0x54

gap3 while formatting (1.44M)

const unsigned DG144_GAP3RW = 0x1b

gap3 while reading/writing (1.44M)

const unsigned DG144_HEADS = 2

heads per drive (1.44M)

const unsigned DG144_SPT = 18

sectors per track (1.44M)

const unsigned DG144_TRACKS = 80

number of tracks (1.44M)

const unsigned DG168_GAP3FMT = 0x0c

gap3 while formatting (1.68M)

const unsigned DG168_GAP3RW = 0x1c

gap3 while reading/writing (1.68M)

const unsigned DG168_HEADS = 2

heads per drive (1.68M)

const unsigned DG168_SPT = 21

sectors per track (1.68M)

const unsigned DG168_TRACKS = 80

number of tracks (1.68M)

const unsigned FDC_CCR = 0x3f7

Config Control Register (output).

const unsigned FDC_DATA = 0x3f5

Data Register.

const unsigned FDC_DIR = 0x3f7

Digital Input Register (input).

const unsigned FDC_DOR = 0x3f2

Digital Output Register.

const unsigned FDC_DRS = 0x3f4

Data Rate Select Register (output).

const unsigned FDC_MSR = 0x3f4

Main Status Register (input).

Floppy* floppy

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Torsion Operating System, Copyright (C) 2000-2004 Dan Helfman