ide_private.h

newos is new operation system

/*
** Copyright 2001, Travis Geiselbrecht. All rights reserved.
** Modified Sep 2001 by Rob Judd <[e-mail]>
** Distributed under the terms of the NewOS License.
*/

#ifndef __IDE_PRIVATE_H__
#define	__IDE_PRIVATE_H__

#include <newos/types.h>
#include "partition.h"

typedef struct
{
	unsigned short 	config;               /* obsolete stuff */
	unsigned short 	cyls;                 /* logical cylinders */
	unsigned short 	_reserved_2;
	unsigned short 	heads;                /* logical heads */
	unsigned short 	_vendor_4;            /* bytes per track unformatted */
	unsigned short 	_vendor_5;            /* sectors per track unformatted */
	unsigned short 	sectors;              /* logical sectors */
	unsigned short 	_vendor_7;
	unsigned short 	_vendor_8;
	unsigned short 	_vendor_9;
	char            serial[20]; //40      /* serial number */
	unsigned short 	_vendor_20;
	unsigned short 	_vendor_21;
	unsigned short 	vend_bytes_long;      /* number of ECC bytes on long cmd */
	char            firmware[8];          /* firmware revision */
	char            model[40];  //94      /* model name */
	unsigned short 	mult_support;         /* vendor stuff and multiple cmds */
	unsigned short 	_reserved_48;         /* bit 0: double word i/o possible */
	unsigned short 	capabilities;         /* bit 9: LBA;  bit 8: DMA support */
	unsigned short 	_reserved_50;
	unsigned short 	pio;                  /* bit 15-8: timing mode for PIO */
	unsigned short 	dma;                  /* bit 15-8: timing mode for DMA */
	unsigned short 	_reserved_53;
	unsigned short 	curr_cyls;            /* current logical cylinders */
	unsigned short 	curr_heads;           /* current logical heads */
	unsigned short 	curr_sectors;         /* current logical sectors */
	unsigned long 	capacity;   //118     /* apparent capacity in sectors */
	unsigned short 	_pad[511-59];         /* don't need this stuff for now */
} ide_hw_id_t;

#define IDE_MAGIC_COOKIE        0xABCDEF10
#define IDE_MAGIC_COOKIE2       0x12345678

#define NO_DEVICE              -1
#define UNKNOWN_DEVICE          0
#define ATA_DEVICE              1
#define ATAPI_DEVICE            2

#define IDE_NAME                40

typedef	struct s_ide_device
{
  uint32        magic;
  ide_hw_id_t   hardware_device;
  uint32        magic2;
  int           iobase;
  int           bus;
  int           device;
  int           device_type;
  uint32        sector_count;
  int           bytes_per_sector;
  bool          lba_supported;
  int           start_block;
  int           end_block;
  tPartition    partitions[8];  // 4 Primary + 4 Extended
} ide_device;

#define	MAX_IDE_BUSES   2
#define	MAX_DEVICES     4

extern	ide_device      devices[MAX_DEVICES];

#define	DISK_GET_GEOMETRY       1
#define	DISK_USE_DMA            2
#define	DISK_USE_BUS_MASTERING  3
#define	DISK_USE_PIO            4
#define	DISK_GET_ACCOUSTIC_LEVEL 5
#define	DISK_SET_ACCOUSTIC_LEVEL 6


typedef struct s_drive_geometry
{
  uint32	blocks;
  uint32	heads;
  uint32	cylinders;
  uint32	sectors;
  bool		removable;
  uint32	bytes_per_sector;
  bool		read_only;
  char		model[40];
  char		serial[20];
  char		firmware[8];
} drive_geometry;

#endif