/* @(#)scsi_mmc.c	1.7 03/04/28 Copyright 2002 J. Schilling */
#ifndef lint
static	char sccsid[] =
	"@(#)scsi_mmc.c	1.7 03/04/28 Copyright 2002 J. Schilling";
#endif
/*
 *	SCSI command functions for cdrecord
 *	covering MMC-3 level and above
 *
 *	Copyright (c) 2002 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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */

/*#define	DEBUG*/

#include <mconfig.h>

#include <stdio.h>
#include <standard.h>
#include <stdxlib.h>
#include <unixstd.h>
#include <fctldefs.h>
#include <errno.h>
#include <strdefs.h>
#include <timedefs.h>

#include <utypes.h>
#include <btorder.h>
#include <intcvt.h>
#include <schily.h>

#include <scg/scgcmd.h>
#include <scg/scsidefs.h>
#include <scg/scsireg.h>
#include <scg/scsitransp.h>

#include "scsimmc.h"
#include "cdrecord.h"

extern	int	xdebug;



EXPORT	int	get_configuration	__PR((SCSI *scgp, caddr_t bp, int cnt, int st_feature, int rt));
LOCAL	int	get_conflen		__PR((SCSI *scgp, int st_feature, int rt));
EXPORT	int	get_curprofile		__PR((SCSI *scgp));
LOCAL	int	get_profiles		__PR((SCSI *scgp, caddr_t bp, int cnt));
EXPORT	int	print_profiles		__PR((SCSI *scgp));
EXPORT	int	get_proflist		__PR((SCSI *scgp, BOOL *wp, BOOL *cdp, BOOL *dvdp, BOOL *dvdplusp, BOOL *ddcdp));
EXPORT	int	get_wproflist		__PR((SCSI *scgp, BOOL *cdp, BOOL *dvdp,
							BOOL *dvdplusp, BOOL *ddcdp));

/*
 * Get feature codes
 */
EXPORT int
get_configuration(scgp, bp, cnt, st_feature, rt)
	SCSI	*scgp;
	caddr_t	bp;
	int	cnt;
	int	st_feature;
	int	rt;
{
	register struct	scg_cmd	*scmd = scgp->scmd;

	fillbytes((caddr_t)scmd, sizeof(*scmd), '\0');
	scmd->addr = bp;
	scmd->size = cnt;
	scmd->flags = SCG_RECV_DATA|SCG_DISRE_ENA;
	scmd->cdb_len = SC_G1_CDBLEN;
	scmd->sense_len = CCS_SENSE_LEN;
	scmd->cdb.g1_cdb.cmd = 0x46;
	scmd->cdb.g1_cdb.lun = scg_lun(scgp);
	if (rt & 1)
		scmd->cdb.g1_cdb.reladr  = 1;
	if (rt & 2)
		scmd->cdb.g1_cdb.res  = 1;

	i_to_2_byte(scmd->cdb.g1_cdb.addr, st_feature);
	g1_cdblen(&scmd->cdb.g1_cdb, cnt);
	
	scgp->cmdname = "get_configuration";

	return (scg_cmd(scgp));
}

/*
 * Retrieve feature code list length
 */
LOCAL int
get_conflen(scgp, st_feature, rt)
	SCSI	*scgp;
	int	st_feature;
	int	rt;
{
	Uchar	cbuf[8];
	int	flen;
	int	i;

	fillbytes(cbuf, sizeof(cbuf), '\0');
	scgp->silent++;
	i = get_configuration(scgp, (char *)cbuf, sizeof(cbuf), st_feature, rt);
	scgp->silent--;
	if (i < 0)
		return (-1);
	i = sizeof(cbuf) - scg_getresid(scgp);
	if (i < 4)
		return (-1);

	flen = a_to_u_4_byte(cbuf);
	if (flen < 4)
		return (-1);
	return (flen);
}

EXPORT int
get_curprofile(scgp)
	SCSI	*scgp;
{
	Uchar	cbuf[8];
	int	amt;
	int	flen;
	int	profile;
	int	i;

	fillbytes(cbuf, sizeof(cbuf), '\0');
	scgp->silent++;
	i = get_configuration(scgp, (char *)cbuf, sizeof(cbuf), 0, 0);
	scgp->silent--;
	if (i < 0)
		return (-1);

	amt = sizeof(cbuf) - scg_getresid(scgp);
	if (amt < 8)
		return (-1);
	flen = a_to_u_4_byte(cbuf);
	if (flen < 4)
		return (-1);

	profile = a_to_u_2_byte(&cbuf[6]);

	if (xdebug > 1)
		scg_prbytes("Features: ", cbuf, amt);

	if (xdebug > 0)
		printf("feature len: %d current profile 0x%04X len %d\n",
				flen, profile, amt);

	return (profile);
}

LOCAL int
get_profiles(scgp, bp, cnt)
	SCSI	*scgp;
	caddr_t	bp;
	int	cnt;
{
	int	amt;
	int	flen;
	int	i;

	flen = get_conflen(scgp, 0, 0);
	if (flen < 0)
		return (-1);
	if (cnt < flen)
		flen = cnt;

	fillbytes(bp, cnt, '\0');
	scgp->silent++;
	i = get_configuration(scgp, (char *)bp, flen, 0, 0);
	scgp->silent--;
	if (i < 0)
		return (-1);
	amt = flen - scg_getresid(scgp);

	flen = a_to_u_4_byte(bp);
	if ((flen+4) < amt)
		amt = flen+4;

	return (amt);
}

EXPORT int
print_profiles(scgp)
	SCSI	*scgp;
{
	Uchar	cbuf[1024];
	Uchar	*p;
	int	flen;
	int	curprofile;
	int	profile;
	int	i;
	int	n;

	flen = get_profiles(scgp, (caddr_t)cbuf, sizeof(cbuf));
	if (flen < 0)
		return (-1);

	p = cbuf;
	if (xdebug > 1)
		scg_prbytes("Features: ", cbuf, flen);

	curprofile = a_to_u_2_byte(&p[6]);
	if (xdebug > 0)
		printf("feature len: %d current profile 0x%04X\n",
				flen, curprofile);
	
	printf("Current: 0x%04X\n", curprofile);

	p += 8;		/* Skip feature header	*/
	n = p[3];	/* Additional length	*/
	n /= 4;
	p += 4;

	for (i=0; i < n; i++) {
		profile = a_to_u_2_byte(p);
		if (xdebug > 0)
			printf("Profile: 0x%04X ", profile);
		else
			printf("Profile: ");
		printf("0x%04X %s\n", profile, p[2] & 1 ? "(current)":"");
		p += 4;
	}
	return (curprofile);
}

EXPORT int
get_proflist(scgp, wp, cdp, dvdp, dvdplusp, ddcdp)
	SCSI	*scgp;
	BOOL	*wp;
	BOOL	*cdp;
	BOOL	*dvdp;
	BOOL	*dvdplusp;
	BOOL	*ddcdp;
{
	Uchar	cbuf[1024];
	Uchar	*p;
	int	flen;
	int	curprofile;
	int	profile;
	int	i;
	int	n;
	BOOL	wr	= FALSE;
	BOOL	cd	= FALSE;
	BOOL	dvd	= FALSE;
	BOOL	dvdplus	= FALSE;
	BOOL	ddcd	= FALSE;

	flen = get_profiles(scgp, (caddr_t)cbuf, sizeof(cbuf));
	if (flen < 0)
		return (-1);

	p = cbuf;
	if (xdebug > 1)
		scg_prbytes("Features: ", cbuf, flen);

	curprofile = a_to_u_2_byte(&p[6]);
	if (xdebug > 0)
		printf("feature len: %d current profile 0x%04X\n",
				flen, curprofile);
	

	p += 8;		/* Skip feature header	*/
	n = p[3];	/* Additional length	*/
	n /= 4;
	p += 4;

	for (i=0; i < n; i++) {
		profile = a_to_u_2_byte(p);
		p += 4;
		if (profile >= 0x0008 && profile < 0x0010)
			cd = TRUE;
		if (profile > 0x0008 && profile < 0x0010)
			wr = TRUE;

		if (profile >= 0x0010 && profile < 0x0018)
			dvd = TRUE;
		if (profile > 0x0010 && profile < 0x0018)
			wr = TRUE;

		if (profile >= 0x0018 && profile < 0x0020)
			dvdplus = TRUE;
		if (profile > 0x0018 && profile < 0x0020)
			wr = TRUE;

		if (profile >= 0x0020 && profile < 0x0028)
			ddcd = TRUE;
		if (profile > 0x0020 && profile < 0x0028)
			wr = TRUE;
	}
	if (wp)
		*wp	= wr;
	if (cdp)
		*cdp	= cd;
	if (dvdp)
		*dvdp	= dvd;
	if (dvdplusp)
		*dvdplusp = dvdplus;
	if (ddcdp)
		*ddcdp	= ddcd;

	return (curprofile);
}

EXPORT int
get_wproflist(scgp, cdp, dvdp, dvdplusp, ddcdp)
	SCSI	*scgp;
	BOOL	*cdp;
	BOOL	*dvdp;
	BOOL	*dvdplusp;
	BOOL	*ddcdp;
{
	Uchar	cbuf[1024];
	Uchar	*p;
	int	flen;
	int	curprofile;
	int	profile;
	int	i;
	int	n;
	BOOL	cd	= FALSE;
	BOOL	dvd	= FALSE;
	BOOL	dvdplus	= FALSE;
	BOOL	ddcd	= FALSE;

	flen = get_profiles(scgp, (caddr_t)cbuf, sizeof(cbuf));
	if (flen < 0)
		return (-1);
	p = cbuf;
	curprofile = a_to_u_2_byte(&p[6]);

	p += 8;		/* Skip feature header	*/
	n = p[3];	/* Additional length	*/
	n /= 4;
	p += 4;

	for (i=0; i < n; i++) {
		profile = a_to_u_2_byte(p);
		p += 4;
		if (profile > 0x0008 && profile < 0x0010)
			cd = TRUE;
		if (profile > 0x0010 && profile < 0x0018)
			dvd = TRUE;
		if (profile > 0x0018 && profile < 0x0020)
			dvdplus = TRUE;
		if (profile > 0x0020 && profile < 0x0028)
			ddcd = TRUE;
	}
	if (cdp)
		*cdp	= cd;
	if (dvdp)
		*dvdp	= dvd;
	if (dvdplusp)
		*dvdplusp = dvdplus;
	if (ddcdp)
		*ddcdp	= ddcd;

	return (curprofile);
}

