drv_jvc.c

另一种方法编辑刻录程序的代码!要的与偶联系呀

/** @(#)drv_jvc.c	1.31 98/09/15 Copyright 1997 J. Schilling */
#ifndef lint
static	char sccsid[] =
	"@(#)drv_jvc.c	1.31 98/09/15 Copyright 1997 J. Schilling";
#endif
/*
 *	CDR device implementation for
 *	JVC/TEAC
 *
 *	Copyright (c) 1997 J. Schilling
 */
/*
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2, or (at your option)
 * any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; see the file COPYING.  If not, write to
 * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#include <mconfig.h>

#include <stdio.h>
#include <standard.h>
#include <fcntl.h>
#include <errno.h>
#include <string.h>

#include <utypes.h>
#include <btorder.h>
#include <scgio.h>
#include <scsidefs.h>
#include <scsireg.h>

#include "cdrecord.h"
#include "scsitransp.h"

struct	scg_cmd		scmd;
struct	scsi_inquiry	inq;

/* just a hack */
long	lba_addr;
BOOL	last_done;

/*
 * macros for building MSF values from LBA
 */
#define LBA_MIN(x)	((x)/(60*75))
#define LBA_SEC(x)	(((x)%(60*75))/75)
#define LBA_FRM(x)	((x)%75)
#define MSF_CONV(a)	((((a)%100)/10)*16 + ((a)%10))

extern	int	scsibus;
extern	int	target;
extern	int	lun;

extern	int	silent;
extern	int	verbose;
extern	int	lverbose;

#if defined(_BIT_FIELDS_LTOH)	/* Intel byteorder */
struct teac_mode_page_21 {		/* teac dummy selection */
		MP_P_CODE;		/* parsave & pagecode */
	u_char	p_len;			/* 0x01 = 1 Byte */
	Ucbit	dummy		: 2;
	Ucbit	res		: 6;
};
#else
struct teac_mode_page_21 {		/* teac dummy selection */
		MP_P_CODE;		/* parsave & pagecode */
	u_char	p_len;			/* 0x01 = 1 Byte */
	Ucbit	res		: 6;
	Ucbit	dummy		: 2;
};
#endif

struct teac_mode_page_31 {		/* teac speed selection */
		MP_P_CODE;		/* parsave & pagecode */
	u_char	p_len;			/* 0x02 = 2 Byte */
	u_char	speed;
	u_char	res;
};

struct cdd_52x_mode_data {
	struct scsi_mode_header	header;
	union cdd_pagex	{
		struct teac_mode_page_21	teac_page21;
		struct teac_mode_page_31	teac_page31;
	} pagex;
};

#if defined(_BIT_FIELDS_LTOH)	/* Intel byteorder */

struct pgm_subcode {		/* subcode for progam area */
	u_char	subcode;
	Ucbit	addr		: 4;
	Ucbit	control		: 4;
	u_char	track;
	u_char	index;
};

#else

struct pgm_subcode {		/* subcode for progam area */
	u_char	subcode;
	Ucbit	control		: 4;
	Ucbit	addr		: 4;
	u_char	track;
	u_char	index;
};

#endif

#define	set_pgm_subcode(sp, t, c, a, tr, idx)		(\
			(sp)->subcode = (t),		 \
			(sp)->control = (c),		 \
			(sp)->addr = (a),		 \
			(sp)->track = MSF_CONV(tr),	 \
			(sp)->index = (idx))

#define	SC_P		1	/* Subcode defines pre-gap (Pause)	*/
#define	SC_TR		0	/* Subcode defines track data		*/

#if defined(_BIT_FIELDS_LTOH)	/* Intel byteorder */

typedef struct lin_subcode {	/* subcode for lead in area */
	Ucbit	addr		: 4;
	Ucbit	control		: 4;
	u_char	track;
	u_char	msf[3];
} lsc_t;

#else

typedef struct lin_subcode {	/* subcode for lead in area */
	Ucbit	control		: 4;
	Ucbit	addr		: 4;
	u_char	track;
	u_char	msf[3];
} lsc_t;

#endif

#define	set_toc_subcode(sp, c, a, tr, bno)				(\
			((lsc_t *)sp)->control = (c),			 \
			((lsc_t *)sp)->addr = (a),			 \
			((lsc_t *)sp)->track = MSF_CONV(tr),		 \
			((lsc_t *)sp)->msf[0] = MSF_CONV(LBA_MIN(bno)),	 \
			((lsc_t *)sp)->msf[1] = MSF_CONV(LBA_SEC(bno)),	 \
			((lsc_t *)sp)->msf[2] = MSF_CONV(LBA_FRM(bno)),	 \
			&((lsc_t *)sp)->msf[3])

#define	set_lin_subcode(sp, c, a, pt, min, sec, frm)			(\
			((lsc_t *)sp)->control = (c),			 \
			((lsc_t *)sp)->addr = (a),			 \
			((lsc_t *)sp)->track = (pt),			 \
			((lsc_t *)sp)->msf[0] = (min),			 \
			((lsc_t *)sp)->msf[1] = (sec),			 \
			((lsc_t *)sp)->msf[2] = (frm),			 \
			&((lsc_t *)sp)->msf[3])

#if defined(_BIT_FIELDS_LTOH)	/* Intel byteorder */

struct upc_subcode {		/* subcode for upc/bar code */
	u_char	res;
	Ucbit	addr		: 4;
	Ucbit	control		: 4;
	u_char	upc[13];
};

#else

struct upc_subcode {		/* subcode for upc/bar code */
	u_char	res;
	Ucbit	control		: 4;
	Ucbit	addr		: 4;
	u_char	upc[13];
};

#endif

#if defined(_BIT_FIELDS_LTOH)	/* Intel byteorder */

struct isrc_subcode {		/* subcode for ISRC code */
	u_char	res;
	Ucbit	addr		: 4;
	Ucbit	control		: 4;
	u_char	isrc[12];
	u_char	res14;
};

#else

struct isrc_subcode {		/* subcode for ISRC code */
	u_char	res;
	Ucbit	control		: 4;
	Ucbit	addr		: 4;
	u_char	isrc[12];
	u_char	res14;
};

#endif


LOCAL	int	teac_attach	__PR((cdr_t *dp));
LOCAL	int	teac_getdisktype __PR((cdr_t *dp, dstat_t *dsp));
LOCAL	int	speed_select_teac __PR((int speed, int dummy));
LOCAL	int	select_secsize_teac __PR((track_t *trackp));
LOCAL	int	next_wr_addr_jvc __PR((int track, track_t *, long *ap));
LOCAL	int	write_teac_xg1	__PR((caddr_t, long, long, int, BOOL));
LOCAL	int	cdr_write_teac	__PR((caddr_t bp, long sectaddr, long size, int blocks, BOOL islast));
LOCAL	int	open_track_jvc	__PR((cdr_t *dp, int track, track_t *trackp));
LOCAL	int	teac_fixation	__PR((int onp, int dummy, int toctype, int tracks, track_t *trackp));
LOCAL	int	close_track_teac __PR((int track, track_t *trackp));
LOCAL	int	teac_open_session __PR((int tracks, track_t *trackp, int toctype, int multi));
LOCAL	int	teac_calibrate __PR((int toctype, int multi));
LOCAL	int	opt_power_judge	__PR((int judge));
LOCAL	int	clear_subcode	__PR((void));
LOCAL	int	set_limits	__PR((long lba, long length));
LOCAL	int	set_subcode	__PR((u_char *subcode_data, int length));
LOCAL	int	read_disk_info_teac __PR((u_char *data, int length, int type));
LOCAL	int	teac_freeze	__PR((int bp_flag));
LOCAL	int	teac_wr_pma	__PR((void));
LOCAL	int	teac_rd_pma	__PR((void));
LOCAL	int	next_wr_addr_teac __PR((long start_lba, long last_lba));
LOCAL	int	blank_jvc	__PR((long addr, int blanktype));

cdr_t	cdr_teac_cdr50 = {
	0,
	CDR_TAO|CDR_DAO|CDR_SWABAUDIO|CDR_NO_LOLIMIT,
	"teac_cdr50",
	"driver for Teac CD-R50S, Teac CD-R55S, JVC XR-W2010, Pinnacle RCD-5020",
	0,
	drive_identify,
	teac_attach,
	teac_getdisktype,
	scsi_load,
	scsi_unload,
	recovery_needed,
	recover,
	speed_select_teac,
	select_secsize,
	next_wr_addr_jvc,
	reserve_track,
	cdr_write_teac,
	open_track_jvc,
	close_track_teac,
	teac_open_session,
	cmd_dummy,
	read_session_offset_philips,
	teac_fixation,
/*	blank_dummy,*/
	blank_jvc,
};

LOCAL int
teac_getdisktype(dp, dsp)
	cdr_t	*dp;
	dstat_t	*dsp;
{
	struct scsi_mode_data md;
	int	count = sizeof(struct scsi_mode_header) +
			sizeof(struct scsi_mode_blockdesc);
	int	len;
	int	page = 0;
	long	l;

	fillbytes((caddr_t)&md, sizeof(md), '\0');

	(void)test_unit_ready();
	if (mode_sense((u_char *)&md, count, page, 0) < 0) {	/* Page n current */
		return (-1);
	} else {
		len = ((struct scsi_mode_header *)&md)->sense_data_len + 1;
	}
	if (((struct scsi_mode_header *)&md)->blockdesc_len < 8)
		return (-1);

	l = a_to_3_byte(md.blockdesc.nlblock);
	dsp->ds_maxblocks = l;
	return (0);
}

LOCAL int
speed_select_teac(speed, dummy)
	int	speed;
	int	dummy;
{
	struct cdd_52x_mode_data md;
	int	count;
	int	status;

	fillbytes((caddr_t)&md, sizeof(md), '\0');

	count  = sizeof(struct scsi_mode_header) +
		sizeof(struct teac_mode_page_21);

	md.pagex.teac_page21.p_code = 0x21;
	md.pagex.teac_page21.p_len =  0x01;
	md.pagex.teac_page21.dummy = dummy?3:0;

	status = mode_select((u_char *)&md, count, 0, inq.data_format >= 2);
	if (status < 0)
		return (status);

	fillbytes((caddr_t)&md, sizeof(md), '\0');

	count  = sizeof(struct scsi_mode_header) +
		sizeof(struct teac_mode_page_31);

	speed >>= 1;
	md.pagex.teac_page31.p_code = 0x31;
	md.pagex.teac_page31.p_len =  0x02;
	md.pagex.teac_page31.speed = speed;

	return (mode_select((u_char *)&md, count, 0, inq.data_format >= 2));
}

LOCAL int
select_secsize_teac(trackp)
	track_t	*trackp;
{
	struct scsi_mode_data md;
	int	count = sizeof(struct scsi_mode_header) +
			sizeof(struct scsi_mode_blockdesc);
	int	len;
	int	page = 0;

	fillbytes((caddr_t)&md, sizeof(md), '\0');

	(void)test_unit_ready();
	if (mode_sense((u_char *)&md, count, page, 0) < 0) {	/* Page n current */
		return (-1);
	} else {
		len = ((struct scsi_mode_header *)&md)->sense_data_len + 1;
	}
	if (((struct scsi_mode_header *)&md)->blockdesc_len < 8)
		return (-1);

	md.header.sense_data_len = 0;
	md.header.blockdesc_len = 8;

	md.blockdesc.density = 1;
	if (trackp->secsize == 2352)
		md.blockdesc.density = 4;
	i_to_3_byte(md.blockdesc.lblen, trackp->secsize);
	
	return (mode_select((u_char *)&md, count, 0, inq.data_format >= 2));
}

LOCAL int
next_wr_addr_jvc(track, trackp, ap)
	int	track;
	track_t	*trackp;
	long	*ap;
{
	if (track > 0) {
		*ap = lba_addr;
	} else {
		long	nwa;

		if (read_B0(TRUE, &nwa, NULL) < 0)
			return (-1);

		*ap = nwa + 150;
	}
	return (0);
}

LOCAL int
write_teac_xg1(bp, sectaddr, size, blocks, extwr)
	caddr_t	bp;		/* address of buffer */
	long	sectaddr;	/* disk address (sector) to put */
	long	size;		/* number of bytes to transfer */
	int	blocks;		/* sector count */
	BOOL	extwr;		/* is an extended write */
{
	fillbytes((caddr_t)&scmd, sizeof(scmd), '\0');
	scmd.addr = bp;
	scmd.size = size;
	scmd.flags = SCG_DISRE_ENA|SCG_CMD_RETRY;
/*	scmd.flags = SCG_DISRE_ENA;*/
	scmd.cdb_len = SC_G1_CDBLEN;
	scmd.sense_len = CCS_SENSE_LEN;
	scmd.target = target;
	scmd.cdb.g1_cdb.cmd = SC_EWRITE;
	scmd.cdb.g1_cdb.lun = lun;
	g1_cdbaddr(&scmd.cdb.g1_cdb, sectaddr);
	g1_cdblen(&scmd.cdb.g1_cdb, blocks);
	scmd.cdb.g1_cdb.vu_97 = extwr;

	if (scsicmd("write_teac_g1") < 0)
		return (-1);
	return (size - scmd.resid);
}

LOCAL int
cdr_write_teac(bp, sectaddr, size, blocks, islast)
	caddr_t	bp;		/* address of buffer */
	long	sectaddr;	/* disk address (sector) to put */
	long	size;		/* number of bytes to transfer */
	int	blocks;		/* sector count */
	BOOL	islast;		/* last write for track */
{
	int	ret;

	if (islast)
		last_done = TRUE;

	ret = write_teac_xg1(bp, sectaddr, size, blocks, !islast);
	if (ret < 0)
		return (ret);

	lba_addr = sectaddr + blocks;
	return (ret);
}

LOCAL int
open_track_jvc(dp, track, trackp)
	cdr_t	*dp;
	int	track;
	track_t	*trackp;
{
	int	status;
	long	blocks;
	long	pregapsize;
	struct	pgm_subcode	sc;

	last_done = FALSE;

	if (select_secsize_teac(trackp) < 0)
		return (-1);

	status = clear_subcode();
/*next_wr_addr_teac();*/
	if (status < 0)
		return (status);

if (trackp->pregapsize != 0) {
	if (lverbose > 1) {
		printf("set_limits(%ld, %ld)-> %ld\n",
		lba_addr, trackp->pregapsize, lba_addr + trackp->pregapsize);
	}

	status = set_limits(lba_addr, trackp->pregapsize);
	if (status < 0)
		return (status);

	/*
	 * Set pre-gap (pause - index 0)
	 */
	set_pgm_subcode(&sc, SC_P,
			st2mode[trackp->sectype&ST_MASK], ADR_POS, track, 0);

	if (lverbose > 1)
		scsiprbytes("Subcode:", (u_char *)&sc, sizeof(sc));

	status = set_subcode((u_char *)&sc, sizeof(sc));
	if (status < 0)
		return (status);

	pregapsize = trackp->pregapsize;
	if (!is_audio(trackp)) {
		lba_addr += 5;	/* link & run in blocks */
		pregapsize -= 5;
	}
	if (lverbose > 1) {
		printf("pad_track(%ld, %ld)-> %ld\n",
			lba_addr, pregapsize, lba_addr + pregapsize);
	}
	if (pad_track(dp, track, trackp,
			lba_addr, pregapsize*trackp->secsize,
			FALSE, (long *)0) < 0)
		return (-1);
}

	blocks = trackp->tracksize/trackp->secsize +
		 (trackp->tracksize%trackp->secsize?1:0);
	blocks += trackp->padsize/trackp->secsize +
		 (trackp->padsize%trackp->secsize?1:0);
	if (blocks < 300)
		blocks = 300;
	if (!is_audio(trackp))
		blocks += 2;
if (!is_last(trackp) && trackp[1].pregapsize == 0)
		blocks -= 150;

	/*
	 * set the limits for the new subcode - seems to apply to all
	 * of the data track.
	 * Unknown tracksize is handled in open_session.
	 * We definitely need to know the tracksize in this driver.
	 */
	if (lverbose > 1) {
		printf("set_limits(%ld, %ld)-> %ld\n",
			lba_addr, blocks, lba_addr + blocks);
	}
	status = set_limits(lba_addr, blocks);
	if (status < 0)
		return (status);

	/*
	 * Set track start (index 1)
	 */
	set_pgm_subcode(&sc, SC_TR,
			st2mode[trackp->sectype&ST_MASK], ADR_POS, track, 1);

	if (lverbose > 1)
		scsiprbytes("Subcode:", (u_char *)&sc, sizeof(sc));

	status = set_subcode((u_char *)&sc, sizeof(sc));
	if (status < 0)
		return (status);

if (!is_last(trackp) && trackp[1].pregapsize == 0) {
	blocks += lba_addr;
	pregapsize = 150;

	if (lverbose > 1) {
		printf("set_limits(%ld, %ld)-> %ld\n",
		blocks, pregapsize, blocks + pregapsize);
	}

	status = set_limits(blocks, pregapsize);
	if (status < 0)
		return (status);

	/*
	 * Set pre-gap (pause - index 0)
	 */
	track++;
	trackp++;
	set_pgm_subcode(&sc, SC_P,
			st2mode[trackp->sectype&ST_MASK], ADR_POS, track, 0);

	if (lverbose > 1)
		scsiprbytes("Subcode:", (u_char *)&sc, sizeof(sc));