File:  [DragonFly] / src / sys / dev / disk / scd / Attic / scd.c
Revision 1.9: download - view: text, annotated - select for diffs
Thu May 13 23:49:15 2004 UTC (10 years, 6 months ago) by dillon
Branches: MAIN
CVS tags: HEAD
device switch 1/many: Remove d_autoq, add d_clone (where d_autoq was).

d_autoq was used to allow the device port dispatch to mix old-style synchronous
calls with new style messaging calls within a particular device.  It was never
used for that purpose.

d_clone will be more fully implemented as work continues.  We are going to
install d_port in the dev_t (struct specinfo) structure itself and d_clone
will be needed to allow devices to 'revector' the port on a minor-number
by minor-number basis, in particular allowing minor numbers to be directly
dispatched to distinct threads.  This is something we will be needing later
on.

    1: /*-
    2:  * Copyright (c) 1995 Mikael Hybsch
    3:  * All rights reserved.
    4:  *
    5:  * Portions of this file are copied from mcd.c
    6:  * which has the following copyrights:
    7:  *
    8:  *	Copyright 1993 by Holger Veit (data part)
    9:  *	Copyright 1993 by Brian Moore (audio part)
   10:  *	Changes Copyright 1993 by Gary Clark II
   11:  *	Changes Copyright (C) 1994 by Andrew A. Chernov
   12:  *
   13:  *	Rewrote probe routine to work on newer Mitsumi drives.
   14:  *	Additional changes (C) 1994 by Jordan K. Hubbard
   15:  *
   16:  *	All rights reserved.
   17:  *
   18:  * Redistribution and use in source and binary forms, with or without
   19:  * modification, are permitted provided that the following conditions
   20:  * are met:
   21:  * 1. Redistributions of source code must retain the above copyright
   22:  *    notice, this list of conditions and the following disclaimer
   23:  *    in this position and unchanged.
   24:  * 2. Redistributions in binary form must reproduce the above copyright
   25:  *    notice, this list of conditions and the following disclaimer in the
   26:  *    documentation and/or other materials provided with the distribution.
   27:  * 3. The name of the author may not be used to endorse or promote products
   28:  *    derived from this software withough specific prior written permission
   29:  *
   30:  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   31:  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   32:  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   33:  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   34:  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   35:  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   36:  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   37:  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   38:  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   39:  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   40:  *
   41:  */
   42: 
   43: 
   44: /* $FreeBSD: src/sys/i386/isa/scd.c,v 1.54 2000/01/29 16:00:30 peter Exp $ */
   45: /* $DragonFly: src/sys/dev/disk/scd/scd.c,v 1.9 2004/05/13 23:49:15 dillon Exp $ */
   46: 
   47: /* Please send any comments to micke@dynas.se */
   48: 
   49: #define	SCD_DEBUG	0
   50: 
   51: #include "use_scd.h"
   52: #include <sys/param.h>
   53: #include <sys/systm.h>
   54: #include <sys/conf.h>
   55: #include <sys/buf.h>
   56: #include <sys/cdio.h>
   57: #include <sys/disklabel.h>
   58: #include <sys/kernel.h>
   59: #include <sys/buf2.h>
   60: 
   61: #include <machine/clock.h>
   62: #include <machine/stdarg.h>
   63: 
   64: #include <bus/isa/i386/isa_device.h>
   65: #include "scdreg.h"
   66: 
   67: 
   68: #define scd_part(dev)	((minor(dev)) & 7)
   69: #define scd_unit(dev)	(((minor(dev)) & 0x38) >> 3)
   70: #define scd_phys(dev)	(((minor(dev)) & 0x40) >> 6)
   71: #define RAW_PART        2
   72: 
   73: /* flags */
   74: #define SCDOPEN		0x0001	/* device opened */
   75: #define SCDVALID	0x0002	/* parameters loaded */
   76: #define SCDINIT		0x0004	/* device is init'd */
   77: #define	SCDPROBING	0x0020	/* probing */
   78: #define	SCDTOC		0x0100	/* already read toc */
   79: #define	SCDMBXBSY	0x0200	/* local mbx is busy */
   80: #define	SCDSPINNING	0x0400  /* drive is spun up */
   81: 
   82: #define SCD_S_BEGIN	0
   83: #define SCD_S_BEGIN1	1
   84: #define SCD_S_WAITSTAT	2
   85: #define	SCD_S_WAITFIFO	3
   86: #define SCD_S_WAITSPIN	4
   87: #define SCD_S_WAITREAD	5
   88: #define	SCD_S_WAITPARAM 6
   89: 
   90: #define RDELAY_WAIT	300
   91: #define RDELAY_WAITREAD	300
   92: 
   93: #define	SCDBLKSIZE	2048
   94: 
   95: #ifdef SCD_DEBUG
   96:    static int scd_debuglevel = SCD_DEBUG;
   97: #  define XDEBUG(level, data) {if (scd_debuglevel >= level) printf data;}
   98: #else
   99: #  define XDEBUG(level, data)
  100: #endif
  101: 
  102: struct scd_mbx {
  103: 	short		unit;
  104: 	short		port;
  105: 	short		retry;
  106: 	short		nblk;
  107: 	int		sz;
  108: 	u_long		skip;
  109: 	struct buf	*bp;
  110: 	int		p_offset;
  111: 	short		count;
  112: };
  113: 
  114: static struct scd_data {
  115: 	int	iobase;
  116: 	char	double_speed;
  117: 	char	*name;
  118: 	short	flags;
  119: 	int	blksize;
  120: 	u_long	disksize;
  121: 	struct disklabel dlabel;
  122: 	int	openflag;
  123: 	struct {
  124: 		unsigned int  adr :4;
  125: 		unsigned int  ctl :4; /* xcdplayer needs this */
  126: 		unsigned char start_msf[3];
  127: 	} toc[MAX_TRACKS];
  128: 	short	first_track;
  129: 	short	last_track;
  130: 	struct	ioc_play_msf last_play;
  131: 
  132: 	short	audio_status;
  133: 	struct buf_queue_head head;		/* head of buf queue */
  134: 	struct scd_mbx mbx;
  135: } scd_data[NSCD];
  136: 
  137: /* prototypes */
  138: static	void	hsg2msf(int hsg, bcd_t *msf);
  139: static	int	msf2hsg(bcd_t *msf);
  140: 
  141: static void process_attention(unsigned unit);
  142: static __inline void write_control(unsigned port, unsigned data);
  143: static int waitfor_status_bits(int unit, int bits_set, int bits_clear);
  144: static int send_cmd(u_int unit, u_char cmd, u_int nargs, ...);
  145: static void init_drive(unsigned unit);
  146: static int spin_up(unsigned unit);
  147: static int read_toc(unsigned unit);
  148: static int get_result(u_int unit, int result_len, u_char *result);
  149: static void print_error(int unit, int errcode);
  150: 
  151: static void scd_start(int unit);
  152: static timeout_t scd_timeout;
  153: static void scd_doread(int state, struct scd_mbx *mbxin);
  154: 
  155: static int scd_eject(int unit);
  156: static int scd_stop(int unit);
  157: static int scd_pause(int unit);
  158: static int scd_resume(int unit);
  159: static int scd_playtracks(int unit, struct ioc_play_track *pt);
  160: static int scd_playmsf(int unit, struct ioc_play_msf *msf);
  161: static int scd_play(int unit, struct ioc_play_msf *msf);
  162: static int scd_subchan(int unit, struct ioc_read_subchannel *sc);
  163: static int read_subcode(int unit, struct sony_subchannel_position_data *sc);
  164: 
  165: /* for xcdplayer */
  166: static int scd_toc_header(int unit, struct ioc_toc_header *th);
  167: static int scd_toc_entrys(int unit, struct ioc_read_toc_entry *te);
  168: static int scd_toc_entry(int unit, struct ioc_read_toc_single_entry *te);
  169: #define SCD_LASTPLUS1 170 /* don't ask, xcdplayer passes this in */
  170: 
  171: static int	scd_probe(struct isa_device *dev);
  172: static int	scd_attach(struct isa_device *dev);
  173: struct	isa_driver	scddriver = { scd_probe, scd_attach, "scd" };
  174: 
  175: /* For canceling our timeout */
  176: static struct callout_handle tohandle = CALLOUT_HANDLE_INITIALIZER(&tohanle);
  177: 
  178: static	d_open_t	scdopen;
  179: static	d_close_t	scdclose;
  180: static	d_ioctl_t	scdioctl;
  181: static	d_strategy_t	scdstrategy;
  182: 
  183: #define CDEV_MAJOR 45
  184: static struct cdevsw scd_cdevsw = {
  185: 	/* name */	"scd",
  186: 	/* maj */	CDEV_MAJOR,
  187: 	/* flags */	D_DISK,
  188: 	/* port */	NULL,
  189: 	/* clone */	NULL,
  190: 
  191: 	/* open */	scdopen,
  192: 	/* close */	scdclose,
  193: 	/* read */	physread,
  194: 	/* write */	nowrite,
  195: 	/* ioctl */	scdioctl,
  196: 	/* poll */	nopoll,
  197: 	/* mmap */	nommap,
  198: 	/* strategy */	scdstrategy,
  199: 	/* dump */	nodump,
  200: 	/* psize */	nopsize
  201: };
  202: 
  203: 
  204: static int
  205: scd_attach(struct isa_device *dev)
  206: {
  207: 	int	unit = dev->id_unit;
  208: 	struct scd_data *cd = scd_data + unit;
  209: 
  210: 	cd->iobase = dev->id_iobase;	/* Already set by probe, but ... */
  211: 
  212: 	/* name filled in probe */
  213: 	printf("scd%d: <%s>\n", dev->id_unit, scd_data[dev->id_unit].name);
  214: 
  215: 	init_drive(dev->id_unit);
  216: 
  217: 	cd->flags = SCDINIT;
  218: 	cd->audio_status = CD_AS_AUDIO_INVALID;
  219: 	bufq_init(&cd->head);
  220: 
  221: 	make_dev(&scd_cdevsw, dkmakeminor(unit, 0, 0),
  222: 	    UID_ROOT, GID_OPERATOR, 0640, "rscd%da", unit);
  223: 	make_dev(&scd_cdevsw, dkmakeminor(unit, 0, RAW_PART),
  224: 	    UID_ROOT, GID_OPERATOR, 0640, "rscd%dc", unit);
  225: 	make_dev(&scd_cdevsw, dkmakeminor(unit, 0, 0),
  226: 	    UID_ROOT, GID_OPERATOR, 0640, "scd%da", unit);
  227: 	make_dev(&scd_cdevsw, dkmakeminor(unit, 0, RAW_PART),
  228: 	    UID_ROOT, GID_OPERATOR, 0640, "scd%dc", unit);
  229: 	return 1;
  230: }
  231: 
  232: static	int
  233: scdopen(dev_t dev, int flags, int fmt, struct thread *td)
  234: {
  235: 	int unit,part,phys;
  236: 	int rc;
  237: 	struct scd_data *cd;
  238: 
  239: 	unit = scd_unit(dev);
  240: 	if (unit >= NSCD)
  241: 		return ENXIO;
  242: 
  243: 	cd = scd_data + unit;
  244: 	part = scd_part(dev);
  245: 	phys = scd_phys(dev);
  246: 
  247: 	/* not initialized*/
  248: 	if (!(cd->flags & SCDINIT))
  249: 		return ENXIO;
  250: 
  251: 	/* invalidated in the meantime? mark all open part's invalid */
  252: 	if (cd->openflag)
  253: 		return ENXIO;
  254: 
  255: 	XDEBUG(1,("scd%d: DEBUG: status = 0x%x\n", unit, inb(cd->iobase+IREG_STATUS)));
  256: 
  257: 	if ((rc = spin_up(unit)) != 0) {
  258: 		print_error(unit, rc);
  259: 		return EIO;
  260: 	}
  261: 	if (!(cd->flags & SCDTOC)) {
  262: 		int loop_count = 3;
  263: 
  264: 		while (loop_count-- > 0 && (rc = read_toc(unit)) != 0) {
  265: 			if (rc == ERR_NOT_SPINNING) {
  266: 				rc = spin_up(unit);
  267: 				if (rc) {
  268: 					print_error(unit, rc);\
  269: 					return EIO;
  270: 				}
  271: 				continue;
  272: 			}
  273: 			printf("scd%d: TOC read error 0x%x\n", unit, rc);
  274: 			return EIO;
  275: 		}
  276: 	}
  277: 
  278: 	dev->si_bsize_phys = cd->blksize;
  279: 
  280: 	cd->openflag = 1;
  281: 	cd->flags |= SCDVALID;
  282: 
  283: 	return 0;
  284: }
  285: 
  286: static	int
  287: scdclose(dev_t dev, int flags, int fmt, struct thread *td)
  288: {
  289: 	int unit,part,phys;
  290: 	struct scd_data *cd;
  291: 
  292: 	unit = scd_unit(dev);
  293: 	if (unit >= NSCD)
  294: 		return ENXIO;
  295: 
  296: 	cd = scd_data + unit;
  297: 	part = scd_part(dev);
  298: 	phys = scd_phys(dev);
  299: 
  300: 	if (!(cd->flags & SCDINIT) || !cd->openflag)
  301: 		return ENXIO;
  302: 
  303: 	if (cd->audio_status != CD_AS_PLAY_IN_PROGRESS) {
  304: 		(void)send_cmd(unit, CMD_SPIN_DOWN, 0);
  305: 		cd->flags &= ~SCDSPINNING;
  306: 	}
  307: 
  308: 
  309: 	/* close channel */
  310: 	cd->openflag = 0;
  311: 
  312: 	return 0;
  313: }
  314: 
  315: static	void
  316: scdstrategy(struct buf *bp)
  317: {
  318: 	struct scd_data *cd;
  319: 	int s;
  320: 	int unit = scd_unit(bp->b_dev);
  321: 
  322: 	cd = scd_data + unit;
  323: 
  324: 	XDEBUG(2, ("scd%d: DEBUG: strategy: block=%ld, bcount=%ld\n",
  325: 		unit, (long)bp->b_blkno, bp->b_bcount));
  326: 
  327: 	if (unit >= NSCD || bp->b_blkno < 0 || (bp->b_bcount % SCDBLKSIZE)) {
  328: 		printf("scd%d: strategy failure: blkno = %ld, bcount = %ld\n",
  329: 			unit, (long)bp->b_blkno, bp->b_bcount);
  330: 		bp->b_error = EINVAL;
  331: 		bp->b_flags |= B_ERROR;
  332: 		goto bad;
  333: 	}
  334: 
  335: 	/* if device invalidated (e.g. media change, door open), error */
  336: 	if (!(cd->flags & SCDVALID)) {
  337: 		printf("scd%d: media changed\n", unit);
  338: 		bp->b_error = EIO;
  339: 		goto bad;
  340: 	}
  341: 
  342: 	/* read only */
  343: 	if (!(bp->b_flags & B_READ)) {
  344: 		bp->b_error = EROFS;
  345: 		goto bad;
  346: 	}
  347: 
  348: 	/* no data to read */
  349: 	if (bp->b_bcount == 0)
  350: 		goto done;
  351: 
  352: 	if (!(cd->flags & SCDTOC)) {
  353: 		bp->b_error = EIO;
  354: 		goto bad;
  355: 	}
  356: 	/* adjust transfer if necessary */
  357: 	if (bounds_check_with_label(bp,&cd->dlabel,1) <= 0)
  358: 		goto done;
  359: 
  360: 	bp->b_pblkno = bp->b_blkno;
  361: 	bp->b_resid = 0;
  362: 
  363: 	/* queue it */
  364: 	s = splbio();
  365: 	bufqdisksort(&cd->head, bp);
  366: 	splx(s);
  367: 
  368: 	/* now check whether we can perform processing */
  369: 	scd_start(unit);
  370: 	return;
  371: 
  372: bad:
  373: 	bp->b_flags |= B_ERROR;
  374: done:
  375: 	bp->b_resid = bp->b_bcount;
  376: 	biodone(bp);
  377: 	return;
  378: }
  379: 
  380: static void
  381: scd_start(int unit)
  382: {
  383: 	struct scd_data *cd = scd_data + unit;
  384: 	struct buf *bp;
  385: 	struct partition *p;
  386: 	int s = splbio();
  387: 
  388: 	if (cd->flags & SCDMBXBSY) {
  389: 		splx(s);
  390: 		return;
  391: 	}
  392: 
  393: 	bp = bufq_first(&cd->head);
  394: 	if (bp != 0) {
  395: 		/* block found to process, dequeue */
  396: 		bufq_remove(&cd->head, bp);
  397: 		cd->flags |= SCDMBXBSY;
  398: 		splx(s);
  399: 	} else {
  400: 		/* nothing to do */
  401: 		splx(s);
  402: 		return;
  403: 	}
  404: 
  405: 	p = cd->dlabel.d_partitions + scd_part(bp->b_dev);
  406: 
  407: 	cd->mbx.unit = unit;
  408: 	cd->mbx.port = cd->iobase;
  409: 	cd->mbx.retry = 3;
  410: 	cd->mbx.bp = bp;
  411: 	cd->mbx.p_offset = p->p_offset;
  412: 	splx(s);
  413: 
  414: 	scd_doread(SCD_S_BEGIN,&(cd->mbx));
  415: 	return;
  416: }
  417: 
  418: static	int
  419: scdioctl(dev_t dev, u_long cmd, caddr_t addr, int flags, struct thread *td)
  420: {
  421: 	struct scd_data *cd;
  422: 	int unit,part;
  423: 
  424: 	unit = scd_unit(dev);
  425: 	part = scd_part(dev);
  426: 	cd = scd_data + unit;
  427: 
  428: 	XDEBUG(1, ("scd%d: ioctl: cmd=0x%lx\n", unit, cmd));
  429: 
  430: 	if (!(cd->flags & SCDVALID))
  431: 		return EIO;
  432: 
  433: 	switch (cmd) {
  434: 	case DIOCGDINFO:
  435: 		*(struct disklabel *)addr = cd->dlabel;
  436: 		return 0;
  437: 	case DIOCGPART:
  438: 		((struct partinfo *)addr)->disklab = &cd->dlabel;
  439: 		((struct partinfo *)addr)->part =
  440: 			&cd->dlabel.d_partitions[0];
  441: 		return 0;
  442: 	case CDIOCPLAYTRACKS:
  443: 		return scd_playtracks(unit, (struct ioc_play_track *) addr);
  444: 	case CDIOCPLAYBLOCKS:
  445: 		return EINVAL;
  446: 	case CDIOCPLAYMSF:
  447: 		return scd_playmsf(unit, (struct ioc_play_msf *) addr);
  448: 	case CDIOCREADSUBCHANNEL:
  449: 		return scd_subchan(unit, (struct ioc_read_subchannel *) addr);
  450: 	case CDIOREADTOCHEADER:
  451: 		return scd_toc_header (unit, (struct ioc_toc_header *) addr);
  452: 	case CDIOREADTOCENTRYS:
  453: 		return scd_toc_entrys (unit, (struct ioc_read_toc_entry*) addr);
  454: 	case CDIOREADTOCENTRY:
  455: 		return scd_toc_entry (unit, (struct ioc_read_toc_single_entry*) addr);
  456: 	case CDIOCSETPATCH:
  457: 	case CDIOCGETVOL:
  458: 	case CDIOCSETVOL:
  459: 	case CDIOCSETMONO:
  460: 	case CDIOCSETSTERIO:
  461: 	case CDIOCSETMUTE:
  462: 	case CDIOCSETLEFT:
  463: 	case CDIOCSETRIGHT:
  464: 		return EINVAL;
  465: 	case CDIOCRESUME:
  466: 		return scd_resume(unit);
  467: 	case CDIOCPAUSE:
  468: 		return scd_pause(unit);
  469: 	case CDIOCSTART:
  470: 		return EINVAL;
  471: 	case CDIOCSTOP:
  472: 		return scd_stop(unit);
  473: 	case CDIOCEJECT:
  474: 		return scd_eject(unit);
  475: 	case CDIOCALLOW:
  476: 		return 0;
  477: 	case CDIOCSETDEBUG:
  478: #ifdef SCD_DEBUG
  479: 		scd_debuglevel++;
  480: #endif
  481: 		return 0;
  482: 	case CDIOCCLRDEBUG:
  483: #ifdef SCD_DEBUG
  484: 		scd_debuglevel = 0;
  485: 
  486: #endif
  487: 		return 0;
  488: 	default:
  489: 		printf("scd%d: unsupported ioctl (cmd=0x%lx)\n", unit, cmd);
  490: 		return ENOTTY;
  491: 	}
  492: }
  493: 
  494: /***************************************************************
  495:  * lower level of driver starts here
  496:  **************************************************************/
  497: 
  498: static int
  499: scd_playtracks(int unit, struct ioc_play_track *pt)
  500: {
  501: 	struct scd_data *cd = scd_data + unit;
  502: 	struct ioc_play_msf msf;
  503: 	int a = pt->start_track;
  504: 	int z = pt->end_track;
  505: 	int rc;
  506: 
  507: 	if (!(cd->flags & SCDTOC) && (rc = read_toc(unit)) != 0) {
  508: 		if (rc == -ERR_NOT_SPINNING) {
  509: 			if (spin_up(unit) != 0)
  510: 				return EIO;
  511: 			rc = read_toc(unit);
  512: 		}
  513: 		if (rc != 0) {
  514: 			print_error(unit, rc);
  515: 			return EIO;
  516: 		}
  517: 	}
  518: 
  519: 	XDEBUG(1, ("scd%d: playtracks from %d:%d to %d:%d\n", unit,
  520: 		a, pt->start_index, z, pt->end_index));
  521: 
  522: 	if (   a < cd->first_track
  523: 	    || a > cd->last_track
  524: 	    || a > z
  525: 	    || z > cd->last_track)
  526: 		return EINVAL;
  527: 
  528: 	bcopy(cd->toc[a].start_msf, &msf.start_m, 3);
  529: 	hsg2msf(msf2hsg(cd->toc[z+1].start_msf)-1, &msf.end_m);
  530: 
  531: 	return scd_play(unit, &msf);
  532: }
  533: 
  534: /* The start/end msf is expected to be in bin format */
  535: static int
  536: scd_playmsf(int unit, struct ioc_play_msf *msfin)
  537: {
  538: 	struct ioc_play_msf msf;
  539: 
  540: 	msf.start_m = bin2bcd(msfin->start_m);
  541: 	msf.start_s = bin2bcd(msfin->start_s);
  542: 	msf.start_f = bin2bcd(msfin->start_f);
  543: 	msf.end_m = bin2bcd(msfin->end_m);
  544: 	msf.end_s = bin2bcd(msfin->end_s);
  545: 	msf.end_f = bin2bcd(msfin->end_f);
  546: 
  547: 	return scd_play(unit, &msf);
  548: }
  549: 
  550: /* The start/end msf is expected to be in bcd format */
  551: static int
  552: scd_play(int unit, struct ioc_play_msf *msf)
  553: {
  554: 	struct scd_data *cd = scd_data + unit;
  555: 	int i, rc;
  556: 
  557: 	XDEBUG(1, ("scd%d: playing: %02x:%02x:%02x -> %02x:%02x:%02x\n", unit,
  558: 		msf->start_m, msf->start_s, msf->start_f,
  559: 		msf->end_m, msf->end_s, msf->end_f));
  560: 
  561: 	for (i = 0; i < 2; i++) {
  562: 		rc = send_cmd(unit, CMD_PLAY_AUDIO, 7,
  563: 			0x03,
  564: 			msf->start_m, msf->start_s, msf->start_f,
  565: 			msf->end_m, msf->end_s, msf->end_f);
  566: 		if (rc == -ERR_NOT_SPINNING) {
  567: 			cd->flags &= ~SCDSPINNING;
  568: 			if (spin_up(unit) != 0)
  569: 				return EIO;
  570: 		} else if (rc < 0) {
  571: 			print_error(unit, rc);
  572: 			return EIO;
  573: 		} else {
  574: 			break;
  575: 		}
  576: 	}
  577: 	cd->audio_status = CD_AS_PLAY_IN_PROGRESS;
  578: 	bcopy((char *)msf, (char *)&cd->last_play, sizeof(struct ioc_play_msf));
  579: 	return 0;
  580: }
  581: 
  582: static int
  583: scd_stop(int unit)
  584: {
  585: 	struct scd_data *cd = scd_data + unit;
  586: 
  587: 	(void)send_cmd(unit, CMD_STOP_AUDIO, 0);
  588: 	cd->audio_status = CD_AS_PLAY_COMPLETED;
  589: 	return 0;
  590: }
  591: 
  592: static int
  593: scd_pause(int unit)
  594: {
  595: 	struct scd_data *cd = scd_data + unit;
  596: 	struct sony_subchannel_position_data subpos;
  597: 
  598: 	if (cd->audio_status != CD_AS_PLAY_IN_PROGRESS)
  599: 		return EINVAL;
  600: 
  601: 	if (read_subcode(unit, &subpos) != 0)
  602: 		return EIO;
  603: 
  604: 	if (send_cmd(unit, CMD_STOP_AUDIO, 0) != 0)
  605: 		return EIO;
  606: 
  607: 	cd->last_play.start_m = subpos.abs_msf[0];
  608: 	cd->last_play.start_s = subpos.abs_msf[1];
  609: 	cd->last_play.start_f = subpos.abs_msf[2];
  610: 	cd->audio_status = CD_AS_PLAY_PAUSED;
  611: 
  612: 	XDEBUG(1, ("scd%d: pause @ %02x:%02x:%02x\n", unit,
  613: 		cd->last_play.start_m,
  614: 		cd->last_play.start_s,
  615: 		cd->last_play.start_f));
  616: 
  617: 	return 0;
  618: }
  619: 
  620: static int
  621: scd_resume(int unit)
  622: {
  623: 	if (scd_data[unit].audio_status != CD_AS_PLAY_PAUSED)
  624: 		return EINVAL;
  625: 	return scd_play(unit, &scd_data[unit].last_play);
  626: }
  627: 
  628: static int
  629: scd_eject(int unit)
  630: {
  631: 	struct scd_data *cd = scd_data + unit;
  632: 
  633: 	cd->audio_status = CD_AS_AUDIO_INVALID;
  634: 	cd->flags &= ~(SCDSPINNING|SCDTOC);
  635: 
  636: 	if (send_cmd(unit, CMD_STOP_AUDIO, 0) != 0 ||
  637: 	    send_cmd(unit, CMD_SPIN_DOWN, 0) != 0 ||
  638: 	    send_cmd(unit, CMD_EJECT, 0) != 0)
  639: 	{
  640: 		return EIO;
  641: 	}
  642: 	return 0;
  643: }
  644: 
  645: static int
  646: scd_subchan(int unit, struct ioc_read_subchannel *sc)
  647: {
  648: 	struct scd_data *cd = scd_data + unit;
  649: 	struct sony_subchannel_position_data q;
  650: 	struct cd_sub_channel_info data;
  651: 
  652: 	XDEBUG(1, ("scd%d: subchan af=%d, df=%d\n", unit,
  653: 		sc->address_format,
  654: 		sc->data_format));
  655: 
  656: 	if (sc->address_format != CD_MSF_FORMAT)
  657: 		return EINVAL;
  658: 
  659: 	if (sc->data_format != CD_CURRENT_POSITION)
  660: 		return EINVAL;
  661: 
  662: 	if (read_subcode(unit, &q) != 0)
  663: 		return EIO;
  664: 
  665: 	data.header.audio_status = cd->audio_status;
  666: 	data.what.position.data_format = CD_MSF_FORMAT;
  667: 	data.what.position.track_number = bcd2bin(q.track_number);
  668: 	data.what.position.reladdr.msf.unused = 0;
  669: 	data.what.position.reladdr.msf.minute = bcd2bin(q.rel_msf[0]);
  670: 	data.what.position.reladdr.msf.second = bcd2bin(q.rel_msf[1]);
  671: 	data.what.position.reladdr.msf.frame = bcd2bin(q.rel_msf[2]);
  672: 	data.what.position.absaddr.msf.unused = 0;
  673: 	data.what.position.absaddr.msf.minute = bcd2bin(q.abs_msf[0]);
  674: 	data.what.position.absaddr.msf.second = bcd2bin(q.abs_msf[1]);
  675: 	data.what.position.absaddr.msf.frame = bcd2bin(q.abs_msf[2]);
  676: 
  677: 	if (copyout(&data, sc->data, min(sizeof(struct cd_sub_channel_info), sc->data_len))!=0)
  678: 		return EFAULT;
  679: 	return 0;
  680: }
  681: 
  682: static __inline void
  683: write_control(unsigned port, unsigned data)
  684: {
  685: 	outb(port + OREG_CONTROL, data);
  686: }
  687: 
  688: static int
  689: scd_probe(struct isa_device *dev)
  690: {
  691: 	struct sony_drive_configuration drive_config;
  692: 	int unit = dev->id_unit;
  693: 	int rc;
  694: 	static char namebuf[8+16+8+3];
  695: 	char *s = namebuf;
  696: 	int loop_count = 0;
  697: 	static int once;
  698: 
  699: 	if (!once++)
  700: 		cdevsw_add(&scd_cdevsw);
  701: 
  702: 	scd_data[unit].flags = SCDPROBING;
  703: 	scd_data[unit].iobase = dev->id_iobase;
  704: 
  705: 	bzero(&drive_config, sizeof(drive_config));
  706: 
  707: again:
  708: 	/* Reset drive */
  709: 	write_control(dev->id_iobase, CBIT_RESET_DRIVE);
  710: 
  711: 	/* Calm down */
  712: 	DELAY(300000);
  713: 
  714: 	/* Only the ATTENTION bit may be set */
  715: 	if ((inb(dev->id_iobase+IREG_STATUS) & ~1) != 0) {
  716: 		XDEBUG(1, ("scd: too many bits set. probe failed.\n"));
  717: 		return 0;
  718: 	}
  719: 	rc = send_cmd(unit, CMD_GET_DRIVE_CONFIG, 0);
  720: 	if (rc != sizeof(drive_config)) {
  721: 		/* Sometimes if the drive is playing audio I get */
  722: 		/* the bad result 82. Fix by repeating the reset */
  723: 		if (rc > 0 && loop_count++ == 0)
  724: 			goto again;
  725: 		return 0;
  726: 	}
  727: 	if (get_result(unit, rc, (u_char *)&drive_config) != 0)
  728: 		return 0;
  729: 
  730: 	bcopy(drive_config.vendor, namebuf, 8);
  731: 	s = namebuf+8;
  732: 	while (*(s-1) == ' ')	/* Strip trailing spaces */
  733: 		s--;
  734: 	*s++ = ' ';
  735: 	bcopy(drive_config.product, s, 16);
  736: 	s += 16;
  737: 	while (*(s-1) == ' ')
  738: 		s--;
  739: 	*s++ = ' ';
  740: 	bcopy(drive_config.revision, s, 8);
  741: 	s += 8;
  742: 	while (*(s-1) == ' ')
  743: 		s--;
  744: 	*s = 0;
  745: 
  746: 	scd_data[unit].name = namebuf;
  747: 
  748: 	if (drive_config.config & 0x10)
  749: 		scd_data[unit].double_speed = 1;
  750: 	else
  751: 		scd_data[unit].double_speed = 0;
  752: 
  753: 	return 4;
  754: }
  755: 
  756: static int
  757: read_subcode(int unit, struct sony_subchannel_position_data *sc)
  758: {
  759: 	int rc;
  760: 
  761: 	rc = send_cmd(unit, CMD_GET_SUBCHANNEL_DATA, 0);
  762: 	if (rc < 0 || rc < sizeof(*sc))
  763: 		return EIO;
  764: 	if (get_result(unit, rc, (u_char *)sc) != 0)
  765: 		return EIO;
  766: 	return 0;
  767: }
  768: 
  769: /* State machine copied from mcd.c */
  770: 
  771: /* This (and the code in mcd.c) will not work with more than one drive */
  772: /* because there is only one mbxsave below. Should fix that some day. */
  773: /* (mbxsave & state should probably be included in the scd_data struct and */
  774: /*  the unit number used as first argument to scd_doread().) /Micke */
  775: 
  776: /* state machine to process read requests
  777:  * initialize with SCD_S_BEGIN: reset state machine
  778:  * SCD_S_WAITSTAT:  wait for ready (!busy)
  779:  * SCD_S_WAITSPIN:  wait for drive to spin up (if not spinning)
  780:  * SCD_S_WAITFIFO:  wait for param fifo to get ready, them exec. command.
  781:  * SCD_S_WAITREAD:  wait for data ready, read data
  782:  * SCD_S_WAITPARAM: wait for command result params, read them, error if bad data read.
  783:  */
  784: 
  785: static struct scd_mbx *mbxsave;
  786: 
  787: static void
  788: scd_timeout(void *arg)
  789: {
  790: 	scd_doread((int)arg, mbxsave);
  791: }
  792: 
  793: static void
  794: scd_doread(int state, struct scd_mbx *mbxin)
  795: {
  796: 	struct scd_mbx *mbx = (state!=SCD_S_BEGIN) ? mbxsave : mbxin;
  797: 	int	unit = mbx->unit;
  798: 	int	port = mbx->port;
  799: 	struct	buf *bp = mbx->bp;
  800: 	struct	scd_data *cd = scd_data + unit;
  801: 	int	reg,i;
  802: 	int	blknum;
  803: 	caddr_t	addr;
  804: 	static char sdata[3];	/* Must be preserved between calls to this function */
  805: 
  806: loop:
  807: 	switch (state) {
  808: 	case SCD_S_BEGIN:
  809: 		mbx = mbxsave = mbxin;
  810: 
  811: 	case SCD_S_BEGIN1:
  812: 		/* get status */
  813: 		mbx->count = RDELAY_WAIT;
  814: 
  815: 		process_attention(unit);
  816: 		goto trystat;
  817: 
  818: 	case SCD_S_WAITSTAT:
  819: 		untimeout(scd_timeout,(caddr_t)SCD_S_WAITSTAT, tohandle);
  820: 		if (mbx->count-- <= 0) {
  821: 			printf("scd%d: timeout. drive busy.\n",unit);
  822: 			goto harderr;
  823: 		}
  824: 
  825: trystat:
  826: 		if (IS_BUSY(port)) {
  827: 			tohandle = timeout(scd_timeout,
  828: 					   (caddr_t)SCD_S_WAITSTAT,hz/100); /* XXX */
  829: 			return;
  830: 		}
  831: 
  832: 		process_attention(unit);
  833: 
  834: 		/* reject, if audio active */
  835: 		if (cd->audio_status & CD_AS_PLAY_IN_PROGRESS) {
  836: 			printf("scd%d: audio is active\n",unit);
  837: 			goto harderr;
  838: 		}
  839: 
  840: 		mbx->sz = cd->blksize;
  841: 
  842: 		/* for first block */
  843: 		mbx->nblk = (bp->b_bcount + (mbx->sz-1)) / mbx->sz;
  844: 		mbx->skip = 0;
  845: 
  846: nextblock:
  847: 		if (!(cd->flags & SCDVALID))
  848: 			goto changed;
  849: 
  850: 		blknum 	= (bp->b_blkno / (mbx->sz/DEV_BSIZE))
  851: 			+ mbx->p_offset + mbx->skip/mbx->sz;
  852: 
  853: 		XDEBUG(2, ("scd%d: scd_doread: read blknum=%d\n", unit, blknum));
  854: 
  855: 		/* build parameter block */
  856: 		hsg2msf(blknum, sdata);
  857: 
  858: 		write_control(port, CBIT_RESULT_READY_CLEAR);
  859: 		write_control(port, CBIT_RPARAM_CLEAR);
  860: 		write_control(port, CBIT_DATA_READY_CLEAR);
  861: 
  862: 		if (FSTATUS_BIT(port, FBIT_WPARAM_READY))
  863: 			goto writeparam;
  864: 
  865: 		mbx->count = 100;
  866: 		tohandle = timeout(scd_timeout,
  867: 				   (caddr_t)SCD_S_WAITFIFO,hz/100); /* XXX */
  868: 		return;
  869: 
  870: 	case SCD_S_WAITSPIN:
  871: 		untimeout(scd_timeout,(caddr_t)SCD_S_WAITSPIN, tohandle);
  872: 		if (mbx->count-- <= 0) {
  873: 			printf("scd%d: timeout waiting for drive to spin up.\n", unit);
  874: 			goto harderr;
  875: 		}
  876: 		if (!STATUS_BIT(port, SBIT_RESULT_READY)) {
  877: 			tohandle = timeout(scd_timeout,
  878: 					   (caddr_t)SCD_S_WAITSPIN,hz/100); /* XXX */
  879: 			return;
  880: 		}
  881: 		write_control(port, CBIT_RESULT_READY_CLEAR);
  882: 		switch ((i = inb(port+IREG_RESULT)) & 0xf0) {
  883: 		case 0x20:
  884: 			i = inb(port+IREG_RESULT);
  885: 			print_error(unit, i);
  886: 			goto harderr;
  887: 		case 0x00:
  888: 			(void)inb(port+IREG_RESULT);
  889: 			cd->flags |= SCDSPINNING;
  890: 			break;
  891: 		}
  892: 		XDEBUG(1, ("scd%d: DEBUG: spin up complete\n", unit));
  893: 
  894: 		state = SCD_S_BEGIN1;
  895: 		goto loop;
  896: 
  897: 	case SCD_S_WAITFIFO:
  898: 		untimeout(scd_timeout,(caddr_t)SCD_S_WAITFIFO, tohandle);
  899: 		if (mbx->count-- <= 0) {
  900: 			printf("scd%d: timeout. write param not ready.\n",unit);
  901: 			goto harderr;
  902: 		}
  903: 		if (!FSTATUS_BIT(port, FBIT_WPARAM_READY)) {
  904: 			tohandle = timeout(scd_timeout,
  905: 					   (caddr_t)SCD_S_WAITFIFO,hz/100); /* XXX */
  906: 			return;
  907: 		}
  908: 		XDEBUG(1, ("scd%d: mbx->count (writeparamwait) = %d(%d)\n", unit, mbx->count, 100));
  909: 
  910: writeparam:
  911: 		/* The reason this test isn't done 'till now is to make sure */
  912: 		/* that it is ok to send the SPIN_UP cmd below. */
  913: 		if (!(cd->flags & SCDSPINNING)) {
  914: 			XDEBUG(1, ("scd%d: spinning up drive ...\n", unit));
  915: 			outb(port+OREG_COMMAND, CMD_SPIN_UP);
  916: 			mbx->count = 300;
  917: 			tohandle = timeout(scd_timeout,
  918: 					   (caddr_t)SCD_S_WAITSPIN,hz/100); /* XXX */
  919: 			return;
  920: 		}
  921: 
  922: 		reg = port + OREG_WPARAMS;
  923: 		/* send the read command */
  924: 		cpu_disable_intr();
  925: 		outb(reg, sdata[0]);
  926: 		outb(reg, sdata[1]);
  927: 		outb(reg, sdata[2]);
  928: 		outb(reg, 0);
  929: 		outb(reg, 0);
  930: 		outb(reg, 1);
  931: 		outb(port+OREG_COMMAND, CMD_READ);
  932: 		cpu_enable_intr();
  933: 
  934: 		mbx->count = RDELAY_WAITREAD;
  935: 		for (i = 0; i < 50; i++) {
  936: 			if (STATUS_BIT(port, SBIT_DATA_READY))
  937: 				goto got_data;
  938: 			DELAY(100);
  939: 		}
  940: 
  941: 		tohandle = timeout(scd_timeout,
  942: 				   (caddr_t)SCD_S_WAITREAD,hz/100); /* XXX */
  943: 		return;
  944: 
  945: 	case SCD_S_WAITREAD:
  946: 		untimeout(scd_timeout,(caddr_t)SCD_S_WAITREAD, tohandle);
  947: 		if (mbx->count-- <= 0) {
  948: 			if (STATUS_BIT(port, SBIT_RESULT_READY))
  949: 				goto got_param;
  950: 			printf("scd%d: timeout while reading data\n",unit);
  951: 			goto readerr;
  952: 		}
  953: 		if (!STATUS_BIT(port, SBIT_DATA_READY)) {
  954: 			process_attention(unit);
  955: 			if (!(cd->flags & SCDVALID))
  956: 				goto changed;
  957: 			tohandle = timeout(scd_timeout,
  958: 					   (caddr_t)SCD_S_WAITREAD,hz/100); /* XXX */
  959: 			return;
  960: 		}
  961: 		XDEBUG(2, ("scd%d: mbx->count (after RDY_BIT) = %d(%d)\n", unit, mbx->count, RDELAY_WAITREAD));
  962: 
  963: got_data:
  964: 		/* data is ready */
  965: 		addr = bp->b_data + mbx->skip;
  966: 		write_control(port, CBIT_DATA_READY_CLEAR);
  967: 		insb(port+IREG_DATA, addr, mbx->sz);
  968: 
  969: 		mbx->count = 100;
  970: 		for (i = 0; i < 20; i++) {
  971: 			if (STATUS_BIT(port, SBIT_RESULT_READY))
  972: 				goto waitfor_param;
  973: 			DELAY(100);
  974: 		}
  975: 		goto waitfor_param;
  976: 
  977: 	case SCD_S_WAITPARAM:
  978: 		untimeout(scd_timeout,(caddr_t)SCD_S_WAITPARAM, tohandle);
  979: 		if (mbx->count-- <= 0) {
  980: 			printf("scd%d: timeout waiting for params\n",unit);
  981: 			goto readerr;
  982: 		}
  983: 
  984: waitfor_param:
  985: 		if (!STATUS_BIT(port, SBIT_RESULT_READY)) {
  986: 			tohandle = timeout(scd_timeout,
  987: 					   (caddr_t)SCD_S_WAITPARAM,hz/100); /* XXX */
  988: 			return;
  989: 		}
  990: #if SCD_DEBUG
  991: 		if (mbx->count < 100 && scd_debuglevel > 0)
  992: 			printf("scd%d: mbx->count (paramwait) = %d(%d)\n", unit, mbx->count, 100);
  993: #endif
  994: 
  995: got_param:
  996: 		write_control(port, CBIT_RESULT_READY_CLEAR);
  997: 		switch ((i = inb(port+IREG_RESULT)) & 0xf0) {
  998: 		case 0x50:
  999: 			switch (i) {
 1000: 			case ERR_FATAL_READ_ERROR1:
 1001: 			case ERR_FATAL_READ_ERROR2:
 1002: 				printf("scd%d: unrecoverable read error 0x%x\n", unit, i);
 1003: 				goto harderr;
 1004: 			}
 1005: 			break;
 1006: 		case 0x20:
 1007: 			i = inb(port+IREG_RESULT);
 1008: 			switch (i) {
 1009: 			case ERR_NOT_SPINNING:
 1010: 				XDEBUG(1, ("scd%d: read error: drive not spinning\n", unit));
 1011: 				if (mbx->retry-- > 0) {
 1012: 					state = SCD_S_BEGIN1;
 1013: 					cd->flags &= ~SCDSPINNING;
 1014: 					goto loop;
 1015: 				}
 1016: 				goto harderr;
 1017: 			default:
 1018: 				print_error(unit, i);
 1019: 				goto readerr;
 1020: 			}
 1021: 		case 0x00:
 1022: 			i = inb(port+IREG_RESULT);
 1023: 			break;
 1024: 		}
 1025: 
 1026: 		if (--mbx->nblk > 0) {
 1027: 			mbx->skip += mbx->sz;
 1028: 			goto nextblock;
 1029: 		}
 1030: 
 1031: 		/* return buffer */
 1032: 		bp->b_resid = 0;
 1033: 		biodone(bp);
 1034: 
 1035: 		cd->flags &= ~SCDMBXBSY;
 1036: 		scd_start(mbx->unit);
 1037: 		return;
 1038: 	}
 1039: 
 1040: readerr:
 1041: 	if (mbx->retry-- > 0) {
 1042: 		printf("scd%d: retrying ...\n",unit);
 1043: 		state = SCD_S_BEGIN1;
 1044: 		goto loop;
 1045: 	}
 1046: harderr:
 1047: 	/* invalidate the buffer */
 1048: 	bp->b_error = EIO;
 1049: 	bp->b_flags |= B_ERROR;
 1050: 	bp->b_resid = bp->b_bcount;
 1051: 	biodone(bp);
 1052: 
 1053: 	cd->flags &= ~SCDMBXBSY;
 1054: 	scd_start(mbx->unit);
 1055: 	return;
 1056: 
 1057: changed:
 1058: 	printf("scd%d: media changed\n", unit);
 1059: 	goto harderr;
 1060: }
 1061: 
 1062: static void
 1063: hsg2msf(int hsg, bcd_t *msf)
 1064: {
 1065: 	hsg += 150;
 1066: 	M_msf(msf) = bin2bcd(hsg / 4500);
 1067: 	hsg %= 4500;
 1068: 	S_msf(msf) = bin2bcd(hsg / 75);
 1069: 	F_msf(msf) = bin2bcd(hsg % 75);
 1070: }
 1071: 
 1072: static int
 1073: msf2hsg(bcd_t *msf)
 1074: {
 1075: 	return (bcd2bin(M_msf(msf)) * 60 +
 1076: 		bcd2bin(S_msf(msf))) * 75 +
 1077: 		bcd2bin(F_msf(msf)) - 150;
 1078: }
 1079: 
 1080: static void
 1081: process_attention(unsigned unit)
 1082: {
 1083: 	unsigned port = scd_data[unit].iobase;
 1084: 	unsigned char code;
 1085: 	int count = 0;
 1086: 
 1087: 	while (IS_ATTENTION(port) && count++ < 30) {
 1088: 		write_control(port, CBIT_ATTENTION_CLEAR);
 1089: 		code = inb(port+IREG_RESULT);
 1090: 
 1091: #if SCD_DEBUG
 1092: 		if (scd_debuglevel > 0) {
 1093: 			if (count == 1)
 1094: 				printf("scd%d: DEBUG: ATTENTIONS = 0x%x", unit, code);
 1095: 			else
 1096: 				printf(",0x%x", code);
 1097: 		}
 1098: #endif
 1099: 
 1100: 		switch (code) {
 1101: 		case ATTEN_SPIN_DOWN:
 1102: 			scd_data[unit].flags &= ~SCDSPINNING;
 1103: 			break;
 1104: 
 1105: 		case ATTEN_SPIN_UP_DONE:
 1106: 			scd_data[unit].flags |= SCDSPINNING;
 1107: 			break;
 1108: 
 1109: 		case ATTEN_AUDIO_DONE:
 1110: 			scd_data[unit].audio_status = CD_AS_PLAY_COMPLETED;
 1111: 			break;
 1112: 
 1113: 		case ATTEN_DRIVE_LOADED:
 1114: 			scd_data[unit].flags &= ~(SCDTOC|SCDSPINNING|SCDVALID);
 1115: 			scd_data[unit].audio_status = CD_AS_AUDIO_INVALID;
 1116: 			break;
 1117: 
 1118: 		case ATTEN_EJECT_PUSHED:
 1119: 			scd_data[unit].flags &= ~SCDVALID;
 1120: 			break;
 1121: 		}
 1122: 		DELAY(100);
 1123: 	}
 1124: #if SCD_DEBUG
 1125: 	if (scd_debuglevel > 0 && count > 0)
 1126: 		printf("\n");
 1127: #endif
 1128: }
 1129: 
 1130: /* Returns 0 OR sony error code */
 1131: static int
 1132: spin_up(unsigned unit)
 1133: {
 1134: 	unsigned char res_reg[12];
 1135: 	unsigned int res_size;
 1136: 	int rc;
 1137: 	int loop_count = 0;
 1138: 
 1139: again:
 1140: 	rc = send_cmd(unit, CMD_SPIN_UP, 0, 0, res_reg, &res_size);
 1141: 	if (rc != 0) {
 1142: 		XDEBUG(2, ("scd%d: CMD_SPIN_UP error 0x%x\n", unit, rc));
 1143: 		return rc;
 1144: 	}
 1145: 
 1146: 	if (!(scd_data[unit].flags & SCDTOC)) {
 1147: 		rc = send_cmd(unit, CMD_READ_TOC, 0);
 1148: 		if (rc == ERR_NOT_SPINNING) {
 1149: 			if (loop_count++ < 3)
 1150: 				goto again;
 1151: 			return rc;
 1152: 		}
 1153: 		if (rc != 0)
 1154: 			return rc;
 1155: 	}
 1156: 
 1157: 	scd_data[unit].flags |= SCDSPINNING;
 1158: 
 1159: 	return 0;
 1160: }
 1161: 
 1162: static struct sony_tracklist *
 1163: get_tl(struct sony_toc *toc, int size)
 1164: {
 1165: 	struct sony_tracklist *tl = &toc->tracks[0];
 1166: 
 1167: 	if (tl->track != 0xb0)
 1168: 		return tl;
 1169: 	(char *)tl += 9;
 1170: 	if (tl->track != 0xb1)
 1171: 		return tl;
 1172: 	(char *)tl += 9;
 1173: 	if (tl->track != 0xb2)
 1174: 		return tl;
 1175: 	(char *)tl += 9;
 1176: 	if (tl->track != 0xb3)
 1177: 		return tl;
 1178: 	(char *)tl += 9;
 1179: 	if (tl->track != 0xb4)
 1180: 		return tl;
 1181: 	(char *)tl += 9;
 1182: 	if (tl->track != 0xc0)
 1183: 		return tl;
 1184: 	(char *)tl += 9;
 1185: 	return tl;
 1186: }
 1187: 
 1188: static int
 1189: read_toc(unsigned unit)
 1190: {
 1191: 	struct scd_data *cd;
 1192: 	unsigned part = 0;	/* For now ... */
 1193: 	struct sony_toc toc;
 1194: 	struct sony_tracklist *tl;
 1195: 	int rc, i, j;
 1196: 	u_long first, last;
 1197: 
 1198: 	cd = scd_data + unit;
 1199: 
 1200: 	rc = send_cmd(unit, CMD_GET_TOC, 1, part+1);
 1201: 	if (rc < 0)
 1202: 		return rc;
 1203: 	if (rc > sizeof(toc)) {
 1204: 		printf("scd%d: program error: toc too large (%d)\n", unit, rc);
 1205: 		return EIO;
 1206: 	}
 1207: 	if (get_result(unit, rc, (u_char *)&toc) != 0)
 1208: 		return EIO;
 1209: 
 1210: 	XDEBUG(1, ("scd%d: toc read. len = %d, sizeof(toc) = %d\n", unit, rc, sizeof(toc)));
 1211: 
 1212: 	tl = get_tl(&toc, rc);
 1213: 	first = msf2hsg(tl->start_msf);
 1214: 	last = msf2hsg(toc.lead_out_start_msf);
 1215: 	cd->blksize = SCDBLKSIZE;
 1216: 	cd->disksize = last*cd->blksize/DEV_BSIZE;
 1217: 
 1218: 	XDEBUG(1, ("scd%d: firstsector = %ld, lastsector = %ld", unit,
 1219: 			first, last));
 1220: 
 1221: 	cd->first_track = bcd2bin(toc.first_track);
 1222: 	cd->last_track = bcd2bin(toc.last_track);
 1223: 	if (cd->last_track > (MAX_TRACKS-2))
 1224: 		cd->last_track = MAX_TRACKS-2;
 1225: 	for (j = 0, i = cd->first_track; i <= cd->last_track; i++, j++) {
 1226: 		cd->toc[i].adr = tl[j].adr;
 1227: 		cd->toc[i].ctl = tl[j].ctl; /* for xcdplayer */
 1228: 		bcopy(tl[j].start_msf, cd->toc[i].start_msf, 3);
 1229: #ifdef SCD_DEBUG
 1230: 		if (scd_debuglevel > 0) {
 1231: 			if ((j % 3) == 0)
 1232: 				printf("\nscd%d: tracks ", unit);
 1233: 			printf("[%03d: %2d %2d %2d]  ", i,
 1234: 				bcd2bin(cd->toc[i].start_msf[0]),
 1235: 				bcd2bin(cd->toc[i].start_msf[1]),
 1236: 				bcd2bin(cd->toc[i].start_msf[2]));
 1237: 		}
 1238: #endif
 1239: 	}
 1240: 	bcopy(toc.lead_out_start_msf, cd->toc[cd->last_track+1].start_msf, 3);
 1241: #ifdef SCD_DEBUG
 1242: 	if (scd_debuglevel > 0) {
 1243: 		i = cd->last_track+1;
 1244: 		printf("[END: %2d %2d %2d]\n",
 1245: 			bcd2bin(cd->toc[i].start_msf[0]),
 1246: 			bcd2bin(cd->toc[i].start_msf[1]),
 1247: 			bcd2bin(cd->toc[i].start_msf[2]));
 1248: 	}
 1249: #endif
 1250: 
 1251: 	bzero(&cd->dlabel,sizeof(struct disklabel));
 1252: 	/* filled with spaces first */
 1253: 	strncpy(cd->dlabel.d_typename,"               ",
 1254: 		sizeof(cd->dlabel.d_typename));
 1255: 	strncpy(cd->dlabel.d_typename, cd->name,
 1256: 		min(strlen(cd->name), sizeof(cd->dlabel.d_typename) - 1));
 1257: 	strncpy(cd->dlabel.d_packname,"unknown        ",
 1258: 		sizeof(cd->dlabel.d_packname));
 1259: 	cd->dlabel.d_secsize 	= cd->blksize;
 1260: 	cd->dlabel.d_nsectors	= 100;
 1261: 	cd->dlabel.d_ntracks	= 1;
 1262: 	cd->dlabel.d_ncylinders	= (cd->disksize/100)+1;
 1263: 	cd->dlabel.d_secpercyl	= 100;
 1264: 	cd->dlabel.d_secperunit	= cd->disksize;
 1265: 	cd->dlabel.d_rpm	= 300;
 1266: 	cd->dlabel.d_interleave	= 1;
 1267: 	cd->dlabel.d_flags	= D_REMOVABLE;
 1268: 	cd->dlabel.d_npartitions= 1;
 1269: 	cd->dlabel.d_partitions[0].p_offset = 0;
 1270: 	cd->dlabel.d_partitions[0].p_size = cd->disksize;
 1271: 	cd->dlabel.d_partitions[0].p_fstype = 9;
 1272: 	cd->dlabel.d_magic	= DISKMAGIC;
 1273: 	cd->dlabel.d_magic2	= DISKMAGIC;
 1274: 	cd->dlabel.d_checksum	= dkcksum(&cd->dlabel);
 1275: 
 1276: 	cd->flags |= SCDTOC;
 1277: 
 1278: 	return 0;
 1279: }
 1280: 
 1281: static void
 1282: init_drive(unsigned unit)
 1283: {
 1284: 	int rc;
 1285: 
 1286: 	rc = send_cmd(unit, CMD_SET_DRIVE_PARAM, 2,
 1287: 		0x05, 0x03 | ((scd_data[unit].double_speed) ? 0x04: 0));
 1288: 	if (rc != 0)
 1289: 		printf("scd%d: Unable to set parameters. Errcode = 0x%x\n", unit, rc);
 1290: }
 1291: 
 1292: /* Returns 0 or errno */
 1293: static int
 1294: get_result(u_int unit, int result_len, u_char *result)
 1295: {
 1296: 	unsigned int port = scd_data[unit].iobase;
 1297: 	unsigned int res_reg = port + IREG_RESULT;
 1298: 	int loop_index = 2; /* send_cmd() reads two bytes ... */
 1299: 
 1300: 	XDEBUG(1, ("scd%d: DEBUG: get_result: bytes=%d\n", unit, result_len));
 1301: 
 1302: 	while (result_len-- > 0) {
 1303: 		if (loop_index++ >= 10) {
 1304: 			loop_index = 1;
 1305: 			if (waitfor_status_bits(unit, SBIT_RESULT_READY, 0))
 1306: 				return EIO;
 1307: 			write_control(port, CBIT_RESULT_READY_CLEAR);
 1308: 		}
 1309: 		if (result)
 1310: 			*result++ = inb(res_reg);
 1311: 		else
 1312: 			(void)inb(res_reg);
 1313: 	}
 1314: 	return 0;
 1315: }
 1316: 
 1317: /* Returns -0x100 for timeout, -(drive error code) OR number of result bytes */
 1318: static int
 1319: send_cmd(u_int unit, u_char cmd, u_int nargs, ...)
 1320: {
 1321: 	__va_list ap;
 1322: 	u_int port = scd_data[unit].iobase;
 1323: 	u_int reg;
 1324: 	u_char c;
 1325: 	int rc;
 1326: 	int i;
 1327: 
 1328: 	if (waitfor_status_bits(unit, 0, SBIT_BUSY)) {
 1329: 		printf("scd%d: drive busy\n", unit);
 1330: 		return -0x100;
 1331: 	}
 1332: 
 1333: 	XDEBUG(1,("scd%d: DEBUG: send_cmd: cmd=0x%x nargs=%d", unit, cmd, nargs));
 1334: 
 1335: 	write_control(port, CBIT_RESULT_READY_CLEAR);
 1336: 	write_control(port, CBIT_RPARAM_CLEAR);
 1337: 
 1338: 	for (i = 0; i < 100; i++)
 1339: 		if (FSTATUS_BIT(port, FBIT_WPARAM_READY))
 1340: 			break;
 1341: 	if (!FSTATUS_BIT(port, FBIT_WPARAM_READY)) {
 1342: 		XDEBUG(1, ("\nscd%d: wparam timeout\n", unit));
 1343: 		return -EIO;
 1344: 	}
 1345: 
 1346: 	__va_start(ap, nargs);
 1347: 	reg = port + OREG_WPARAMS;
 1348: 	for (i = 0; i < nargs; i++) {
 1349: 		c = (u_char)__va_arg(ap, int);
 1350: 		outb(reg, c);
 1351: 		XDEBUG(1, (",{0x%x}", c));
 1352: 	}
 1353: 	__va_end(ap);
 1354: 	XDEBUG(1, ("\n"));
 1355: 
 1356: 	outb(port+OREG_COMMAND, cmd);
 1357: 
 1358: 	rc = waitfor_status_bits(unit, SBIT_RESULT_READY, SBIT_BUSY);
 1359: 	if (rc)
 1360: 		return -0x100;
 1361: 
 1362: 	reg = port + IREG_RESULT;
 1363: 	write_control(port, CBIT_RESULT_READY_CLEAR);
 1364: 	switch ((rc = inb(reg)) & 0xf0) {
 1365: 	case 0x20:
 1366: 		rc = inb(reg);
 1367: 		/* FALL TROUGH */
 1368: 	case 0x50:
 1369: 		XDEBUG(1, ("scd%d: DEBUG: send_cmd: drive_error=0x%x\n", unit, rc));
 1370: 		return -rc;
 1371: 	case 0x00:
 1372: 	default:
 1373: 		rc = inb(reg);
 1374: 		XDEBUG(1, ("scd%d: DEBUG: send_cmd: result_len=%d\n", unit, rc));
 1375: 		return rc;
 1376: 	}
 1377: }
 1378: 
 1379: static void
 1380: print_error(int unit, int errcode)
 1381: {
 1382: 	switch (errcode) {
 1383: 	case -ERR_CD_NOT_LOADED:
 1384: 		printf("scd%d: door is open\n", unit);
 1385: 		break;
 1386: 	case -ERR_NO_CD_INSIDE:
 1387: 		printf("scd%d: no cd inside\n", unit);
 1388: 		break;
 1389: 	default:
 1390: 		if (errcode == -0x100 || errcode > 0)
 1391: 			printf("scd%d: device timeout\n", unit);
 1392: 		else
 1393: 			printf("scd%d: unexpected error 0x%x\n", unit, -errcode);
 1394: 		break;
 1395: 	}
 1396: }
 1397: 
 1398: /* Returns 0 or errno value */
 1399: static int
 1400: waitfor_status_bits(int unit, int bits_set, int bits_clear)
 1401: {
 1402: 	u_int port = scd_data[unit].iobase;
 1403: 	u_int flags = scd_data[unit].flags;
 1404: 	u_int reg = port + IREG_STATUS;
 1405: 	u_int max_loop;
 1406: 	u_char c = 0;
 1407: 
 1408: 	if (flags & SCDPROBING) {
 1409: 		max_loop = 0;
 1410: 		while (max_loop++ < 1000) {
 1411: 			c = inb(reg);
 1412: 			if (c == 0xff)
 1413: 				return EIO;
 1414: 			if (c & SBIT_ATTENTION) {
 1415: 				process_attention(unit);
 1416: 				continue;
 1417: 			}
 1418: 			if ((c & bits_set) == bits_set &&
 1419: 			    (c & bits_clear) == 0)
 1420: 			{
 1421: 				break;
 1422: 			}
 1423: 			DELAY(10000);
 1424: 		}
 1425: 	} else {
 1426: 		max_loop = 100;
 1427: 		while (max_loop-- > 0) {
 1428: 			c = inb(reg);
 1429: 			if (c & SBIT_ATTENTION) {
 1430: 				process_attention(unit);
 1431: 				continue;
 1432: 			}
 1433: 			if ((c & bits_set) == bits_set &&
 1434: 			    (c & bits_clear) == 0)
 1435: 			{
 1436: 				break;
 1437: 			}
 1438: 			tsleep(waitfor_status_bits, 0, "waitfor", hz/10);
 1439: 		}
 1440: 	}
 1441: 	if ((c & bits_set) == bits_set &&
 1442: 	    (c & bits_clear) == 0)
 1443: 	{
 1444: 		return 0;
 1445: 	}
 1446: #ifdef SCD_DEBUG
 1447: 	if (scd_debuglevel > 0)
 1448: 		printf("scd%d: DEBUG: waitfor: TIMEOUT (0x%x,(0x%x,0x%x))\n", unit, c, bits_set, bits_clear);
 1449: 	else
 1450: #endif
 1451: 		printf("scd%d: timeout.\n", unit);
 1452: 	return EIO;
 1453: }
 1454: 
 1455: /* these two routines for xcdplayer - "borrowed" from mcd.c */
 1456: static int
 1457: scd_toc_header (int unit, struct ioc_toc_header* th)
 1458: {
 1459: 	struct scd_data *cd = scd_data + unit;
 1460: 	int rc;
 1461: 
 1462: 	if (!(cd->flags & SCDTOC) && (rc = read_toc(unit)) != 0) {
 1463: 		print_error(unit, rc);
 1464: 		return EIO;
 1465: 	}
 1466: 
 1467: 	th->starting_track = cd->first_track;
 1468: 	th->ending_track = cd->last_track;
 1469: 	th->len = 0; /* not used */
 1470: 
 1471: 	return 0;
 1472: }
 1473: 
 1474: static int
 1475: scd_toc_entrys (int unit, struct ioc_read_toc_entry *te)
 1476: {
 1477: 	struct scd_data *cd = scd_data + unit;
 1478: 	struct cd_toc_entry toc_entry;
 1479: 	int rc, i, len = te->data_len;
 1480: 
 1481: 	if (!(cd->flags & SCDTOC) && (rc = read_toc(unit)) != 0) {
 1482: 		print_error(unit, rc);
 1483: 		return EIO;
 1484: 	}
 1485: 
 1486: 	/* find the toc to copy*/
 1487: 	i = te->starting_track;
 1488: 	if (i == SCD_LASTPLUS1)
 1489: 		i = cd->last_track + 1;
 1490: 
 1491: 	/* verify starting track */
 1492: 	if (i < cd->first_track || i > cd->last_track+1)
 1493: 		return EINVAL;
 1494: 
 1495: 	/* valid length ? */
 1496: 	if (len < sizeof(struct cd_toc_entry)
 1497: 	    || (len % sizeof(struct cd_toc_entry)) != 0)
 1498: 		return EINVAL;
 1499: 
 1500: 	/* copy the toc data */
 1501: 	toc_entry.control = cd->toc[i].ctl;
 1502: 	toc_entry.addr_type = te->address_format;
 1503: 	toc_entry.track = i;
 1504: 	if (te->address_format == CD_MSF_FORMAT) {
 1505: 		toc_entry.addr.msf.unused = 0;
 1506: 		toc_entry.addr.msf.minute = bcd2bin(cd->toc[i].start_msf[0]);
 1507: 		toc_entry.addr.msf.second = bcd2bin(cd->toc[i].start_msf[1]);
 1508: 		toc_entry.addr.msf.frame = bcd2bin(cd->toc[i].start_msf[2]);
 1509: 	}
 1510: 
 1511: 	/* copy the data back */
 1512: 	if (copyout(&toc_entry, te->data, sizeof(struct cd_toc_entry)) != 0)
 1513: 		return EFAULT;
 1514: 
 1515: 	return 0;
 1516: }
 1517: 
 1518: 
 1519: static int
 1520: scd_toc_entry (int unit, struct ioc_read_toc_single_entry *te)
 1521: {
 1522: 	struct scd_data *cd = scd_data + unit;
 1523: 	struct cd_toc_entry toc_entry;
 1524: 	int rc, i;
 1525: 
 1526: 	if (!(cd->flags & SCDTOC) && (rc = read_toc(unit)) != 0) {
 1527: 		print_error(unit, rc);
 1528: 		return EIO;
 1529: 	}
 1530: 
 1531: 	/* find the toc to copy*/
 1532: 	i = te->track;
 1533: 	if (i == SCD_LASTPLUS1)
 1534: 		i = cd->last_track + 1;
 1535: 
 1536: 	/* verify starting track */
 1537: 	if (i < cd->first_track || i > cd->last_track+1)
 1538: 		return EINVAL;
 1539: 
 1540: 	/* copy the toc data */
 1541: 	toc_entry.control = cd->toc[i].ctl;
 1542: 	toc_entry.addr_type = te->address_format;
 1543: 	toc_entry.track = i;
 1544: 	if (te->address_format == CD_MSF_FORMAT) {
 1545: 		toc_entry.addr.msf.unused = 0;
 1546: 		toc_entry.addr.msf.minute = bcd2bin(cd->toc[i].start_msf[0]);
 1547: 		toc_entry.addr.msf.second = bcd2bin(cd->toc[i].start_msf[1]);
 1548: 		toc_entry.addr.msf.frame = bcd2bin(cd->toc[i].start_msf[2]);
 1549: 	}
 1550: 
 1551: 	/* copy the data back */
 1552: 	bcopy(&toc_entry, &te->entry, sizeof(struct cd_toc_entry));
 1553: 
 1554: 	return 0;
 1555: }