atapi_ide_drive.h

newos is new operation system

#ifndef __ATAPI_IDE_DRIVE_H__
#define	__ATAPI_IDE_DRIVE_H__

#include "ide_drive.h"

extern	ide_drive	atapi_ide_drive;

struct atapi_msf 
{
	uint8 reserved;
	uint8 minute;
	uint8 second;
	uint8 frame;
};
#define MAX_TRACKS 99
struct atapi_toc_header 
{
/*	int    		last_session_lba;
	int    		xa_flag;
	unsigned 	capacity;*/
	uint16 		toc_length;
	uint8 		first_track;
	uint8 		last_track;
};
struct atapi_toc_entry {
	uint8 	reserved1;
	uint8 	control : 4;
	uint8 	adr     : 4;
	uint8 	track;
	uint8 	reserved2;
	union 
	{
		unsigned lba;
		struct atapi_msf msf;
	} addr;
};

struct atapi_toc 
{
	struct atapi_toc_header hdr;
	struct atapi_toc_entry  ent[MAX_TRACKS+1];
};


struct mode_page_header 
{
	uint16 mode_data_length;
	uint8 medium_type;
	uint8 reserved1;
	uint8 reserved2;
	uint8 reserved3;
	uint16 desc_length;
};

typedef enum {
	mechtype_caddy = 0,
	mechtype_tray  = 1,
	mechtype_popup = 2,
	mechtype_individual_changer = 4,
	mechtype_cartridge_changer  = 5
} mechtype_t;
struct atapi_capabilities_page 
{
	struct mode_page_header header;
	uint8 page_code           : 6;
	uint8 reserved1           : 1;
	uint8 parameters_saveable : 1;
	uint8     page_length;
	/* Drive supports read from CD-R discs (orange book, part II) */
	uint8 cd_r_read           : 1; /* reserved in 1.2 */
	/* Drive can read from CD-R/W (CD-E) discs (orange book, part III) */
	uint8 cd_rw_read          : 1; /* reserved in 1.2 */
	/* Drive supports reading CD-R discs with addressing method 2 */
	uint8 method2             : 1;
	/* Drive supports reading of DVD-ROM discs */
	uint8 dvd_rom             : 1;
	/* Drive supports reading of DVD-R discs */
	uint8 dvd_r_read          : 1;
	/* Drive supports reading of DVD-RAM discs */
	uint8 dvd_ram_read        : 1;
	uint8 reserved2		 : 2;
	/* Drive can write to CD-R discs (orange book, part II) */
	uint8 cd_r_write          : 1; /* reserved in 1.2 */
	/* Drive can write to CD-R/W (CD-E) discs (orange book, part III) */
	uint8 cd_rw_write	 : 1; /* reserved in 1.2 */
	/* Drive can fake writes */
	uint8 test_write          : 1;
	uint8 reserved3a          : 1;
	/* Drive can write DVD-R discs */
	uint8 dvd_r_write         : 1;
	/* Drive can write DVD-RAM discs */
	uint8 dvd_ram_write       : 1;
	uint8 reserved3           : 2;
	/* Drive supports audio play operations. */
	uint8 audio_play          : 1;
	/* Drive can deliver a composite audio/video data stream. */
	uint8 composite           : 1;
	/* Drive supports digital output on port 1. */
	uint8 digport1            : 1;
	/* Drive supports digital output on port 2. */
	uint8 digport2            : 1;
	/* Drive can read mode 2, form 1 (XA) data. */
	uint8 mode2_form1         : 1;
	/* Drive can read mode 2, form 2 data. */
	uint8 mode2_form2         : 1;
	/* Drive can read multisession discs. */
	uint8 multisession        : 1;
	uint8 reserved4           : 1;
	/* Drive can read Red Book audio data. */
	uint8 cdda                : 1;
	/* Drive can continue a read cdda operation from a loss of streaming.*/
	uint8 cdda_accurate       : 1;
	/* Subchannel reads can return combined R-W information. */
	uint8 rw_supported        : 1;
	/* R-W data will be returned deinterleaved and error corrected. */
	uint8 rw_corr             : 1;
	/* Drive supports C2 error pointers. */
	uint8 c2_pointers         : 1;
	/* Drive can return International Standard Recording Code info. */
	uint8 isrc                : 1;
	/* Drive can return Media Catalog Number (UPC) info. */
	uint8 upc                 : 1;
	uint8 reserved5           : 1;
	/* Drive can lock the door. */
	uint8 lock                : 1;
	/* Present state of door lock. */
	uint8 lock_state          : 1;
	/* State of prevent/allow jumper. */
	uint8 prevent_jumper      : 1;
	/* Drive can eject a disc or changer cartridge. */
	uint8 eject               : 1;
	uint8 reserved6           : 1;
	/* Drive mechanism types. */
	mechtype_t mechtype	 : 3;
	/* Audio level for each channel can be controlled independently. */
	uint8 separate_volume     : 1;
	/* Audio for each channel can be muted independently. */
	uint8 separate_mute       : 1;
	/* Changer can report exact contents of slots. */
	uint8 disc_present        : 1;  /* reserved in 1.2 */
	/* Drive supports software slot selection. */
	uint8 sss                 : 1;  /* reserved in 1.2 */
	uint8 reserved7           : 4;
	/* Note: the following four fields are returned in big-endian form. */
	/* Maximum speed (in kB/s). */
	unsigned short maxspeed;
	/* Number of discrete volume levels. */
	unsigned short n_vol_levels;
	/* Size of cache in drive, in kB. */
	unsigned short buffer_size;
	/* Current speed (in kB/s). */
	unsigned short curspeed;
	char pad[4];
};

#endif