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563ac84861
hack in the moment for testing purposes and to get the drive going again. 0x20 means empty drive. 0x30 means closed drive with CDROM inserted. 0x80 means drive pulled out, but door closed. 0xa0 means drive pulled out and door open. Luckily none of these values are the same as that reported for Ethernet cards ( 0 for WD8003E, 0x40 for WD8013EPC, 0x60 for NE2000). The bad part is, the probe code gets the WD8003E so hosed, that it is no longer usable after it. No problem with the WD8013EPC.
1332 lines
31 KiB
C
1332 lines
31 KiB
C
/*
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* Copyright 1993 by Holger Veit (data part)
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* Copyright 1993 by Brian Moore (audio part)
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* Changes Copyright 1993 by Gary Clark II
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*
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* Rewrote probe routine to work on newer Mitsumi drives.
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* Additional changes (C) 1994 by Jordan K. Hubbard
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This software was developed by Holger Veit and Brian Moore
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* for use with "386BSD" and similar operating systems.
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* "Similar operating systems" includes mainly non-profit oriented
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* systems for research and education, including but not restricted to
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* "NetBSD", "FreeBSD", "Mach" (by CMU).
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* 4. Neither the name of the developer(s) nor the name "386BSD"
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* may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE DEVELOPER(S) ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE DEVELOPER(S) BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
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* OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $Id: mcd.c,v 1.11 1994/03/05 03:54:19 jkh Exp $
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*/
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static char COPYRIGHT[] = "mcd-driver (C)1993 by H.Veit & B.Moore";
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#include "mcd.h"
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#if NMCD > 0
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#include "types.h"
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#include "param.h"
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#include "systm.h"
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#include "conf.h"
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#include "file.h"
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#include "buf.h"
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#include "stat.h"
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#include "uio.h"
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#include "ioctl.h"
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#include "cdio.h"
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#include "errno.h"
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#include "dkbad.h"
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#include "disklabel.h"
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#include "i386/isa/isa.h"
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#include "i386/isa/isa_device.h"
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#include "mcdreg.h"
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/* user definable options */
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/*#define MCD_TO_WARNING_ON*/ /* define to get timeout messages */
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/*#define MCDMINI*/ /* define for a mini configuration for boot kernel */
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#ifdef MCDMINI
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#define MCD_TRACE(fmt,a,b,c,d)
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#ifdef MCD_TO_WARNING_ON
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#undef MCD_TO_WARNING_ON
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#endif
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#else
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#define MCD_TRACE(fmt,a,b,c,d) {if (mcd_data[unit].debug) {printf("mcd%d st=%02x: ",unit,mcd_data[unit].status); printf(fmt,a,b,c,d);}}
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#endif
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#define mcd_part(dev) ((minor(dev)) & 7)
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#define mcd_unit(dev) (((minor(dev)) & 0x38) >> 3)
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#define mcd_phys(dev) (((minor(dev)) & 0x40) >> 6)
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#define RAW_PART 3
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/* flags */
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#define MCDOPEN 0x0001 /* device opened */
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#define MCDVALID 0x0002 /* parameters loaded */
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#define MCDINIT 0x0004 /* device is init'd */
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#define MCDWAIT 0x0008 /* waiting for something */
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#define MCDLABEL 0x0010 /* label is read */
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#define MCDPROBING 0x0020 /* probing */
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#define MCDREADRAW 0x0040 /* read raw mode (2352 bytes) */
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#define MCDVOLINFO 0x0080 /* already read volinfo */
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#define MCDTOC 0x0100 /* already read toc */
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#define MCDMBXBSY 0x0200 /* local mbx is busy */
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/* status */
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#define MCDAUDIOBSY MCD_ST_AUDIOBSY /* playing audio */
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#define MCDDSKCHNG MCD_ST_DSKCHNG /* sensed change of disk */
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#define MCDDSKIN MCD_ST_DSKIN /* sensed disk in drive */
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#define MCDDOOROPEN MCD_ST_DOOROPEN /* sensed door open */
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#define MCDEXISTS 0x0030 /* A real Mitsumi drive */
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/* toc */
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#define MCD_MAXTOCS 104 /* from the Linux driver */
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#define MCD_LASTPLUS1 170 /* special toc entry */
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struct mcd_mbx {
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short unit;
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short port;
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short retry;
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short nblk;
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int sz;
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u_long skip;
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struct buf *bp;
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int p_offset;
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short count;
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};
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struct mcd_data {
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short config;
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short flags;
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short status;
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int blksize;
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u_long disksize;
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int iobase;
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struct disklabel dlabel;
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int partflags[MAXPARTITIONS];
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int openflags;
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struct mcd_volinfo volinfo;
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#ifndef MCDMINI
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struct mcd_qchninfo toc[MCD_MAXTOCS];
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short audio_status;
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struct mcd_read2 lastpb;
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#endif
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short debug;
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struct buf head; /* head of buf queue */
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struct mcd_mbx mbx;
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} mcd_data[NMCD];
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/* reader state machine */
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#define MCD_S_BEGIN 0
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#define MCD_S_BEGIN1 1
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#define MCD_S_WAITSTAT 2
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#define MCD_S_WAITMODE 3
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#define MCD_S_WAITREAD 4
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/* prototypes */
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int mcdopen(dev_t dev);
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int mcdclose(dev_t dev);
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void mcdstrategy(struct buf *bp);
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int mcdioctl(dev_t dev, int cmd, caddr_t addr, int flags);
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int mcdsize(dev_t dev);
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static void mcd_done(struct mcd_mbx *mbx);
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static void mcd_start(int unit);
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static int mcd_getdisklabel(int unit);
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static void mcd_configure(struct mcd_data *cd);
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static int mcd_get(int unit, char *buf, int nmax);
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static void mcd_setflags(int unit,struct mcd_data *cd);
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static int mcd_getstat(int unit,int sflg);
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static int mcd_send(int unit, int cmd,int nretrys);
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static int bcd2bin(bcd_t b);
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static bcd_t bin2bcd(int b);
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static void hsg2msf(int hsg, bcd_t *msf);
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static int msf2hsg(bcd_t *msf);
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static int mcd_volinfo(int unit);
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static int mcd_waitrdy(int port,int dly);
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static void mcd_doread(int state, struct mcd_mbx *mbxin);
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#ifndef MCDMINI
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static int mcd_setmode(int unit, int mode);
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static int mcd_getqchan(int unit, struct mcd_qchninfo *q);
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static int mcd_subchan(int unit, struct ioc_read_subchannel *sc);
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static int mcd_toc_header(int unit, struct ioc_toc_header *th);
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static int mcd_read_toc(int unit);
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static int mcd_toc_entry(int unit, struct ioc_read_toc_entry *te);
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static int mcd_stop(int unit);
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static int mcd_playtracks(int unit, struct ioc_play_track *pt);
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static int mcd_play(int unit, struct mcd_read2 *pb);
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static int mcd_pause(int unit);
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static int mcd_resume(int unit);
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#endif
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extern int hz;
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extern int mcd_probe(struct isa_device *dev);
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extern int mcd_attach(struct isa_device *dev);
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struct isa_driver mcddriver = { mcd_probe, mcd_attach, "mcd" };
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#define mcd_put(port,byte) outb(port,byte)
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#define MCD_RETRYS 5
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#define MCD_RDRETRYS 8
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#define MCDBLK 2048 /* for cooked mode */
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#define MCDRBLK 2352 /* for raw mode */
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/* several delays */
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#define RDELAY_WAITSTAT 300
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#define RDELAY_WAITMODE 300
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#define RDELAY_WAITREAD 800
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#define DELAY_STATUS 10000l /* 10000 * 1us */
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#define DELAY_GETREPLY 200000l /* 200000 * 2us */
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#define DELAY_SEEKREAD 20000l /* 20000 * 1us */
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#define mcd_delay DELAY
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int mcd_attach(struct isa_device *dev)
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{
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struct mcd_data *cd = mcd_data + dev->id_unit;
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int i;
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cd->iobase = dev->id_iobase;
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cd->flags |= MCDINIT;
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cd->openflags = 0;
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for (i=0; i<MAXPARTITIONS; i++) cd->partflags[i] = 0;
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#ifdef NOTYET
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/* wire controller for interrupts and dma */
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mcd_configure(cd);
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#endif
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return 1;
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}
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int mcdopen(dev_t dev)
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{
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int unit,part,phys;
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struct mcd_data *cd;
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unit = mcd_unit(dev);
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if (unit >= NMCD)
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return ENXIO;
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cd = mcd_data + unit;
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part = mcd_part(dev);
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phys = mcd_phys(dev);
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/* not initialized*/
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if (!(cd->flags & MCDINIT))
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return ENXIO;
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/* invalidated in the meantime? mark all open part's invalid */
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if (!(cd->flags & MCDVALID) && cd->openflags)
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return ENXIO;
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if (mcd_getstat(unit,1) < 0)
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return ENXIO;
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/* XXX get a default disklabel */
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mcd_getdisklabel(unit);
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if (mcdsize(dev) < 0) {
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printf("mcd%d: failed to get disk size\n",unit);
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return ENXIO;
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} else
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cd->flags |= MCDVALID;
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MCD_TRACE("open: partition=%d, disksize = %d, blksize=%d\n",
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part,cd->disksize,cd->blksize,0);
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if (part == RAW_PART ||
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(part < cd->dlabel.d_npartitions &&
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cd->dlabel.d_partitions[part].p_fstype != FS_UNUSED)) {
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cd->partflags[part] |= MCDOPEN;
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cd->openflags |= (1<<part);
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if (part == RAW_PART && phys != 0)
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cd->partflags[part] |= MCDREADRAW;
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return 0;
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}
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return ENXIO;
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}
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int mcdclose(dev_t dev)
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{
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int unit,part,phys;
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struct mcd_data *cd;
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unit = mcd_unit(dev);
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if (unit >= NMCD)
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return ENXIO;
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cd = mcd_data + unit;
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part = mcd_part(dev);
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phys = mcd_phys(dev);
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if (!(cd->flags & MCDINIT))
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return ENXIO;
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mcd_getstat(unit,1); /* get status */
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/* close channel */
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cd->partflags[part] &= ~(MCDOPEN|MCDREADRAW);
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cd->openflags &= ~(1<<part);
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MCD_TRACE("close: partition=%d\n",part,0,0,0);
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return 0;
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}
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void
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mcdstrategy(struct buf *bp)
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{
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struct mcd_data *cd;
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struct buf *qp;
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int s;
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int unit = mcd_unit(bp->b_dev);
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cd = mcd_data + unit;
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/* test validity */
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/*MCD_TRACE("strategy: buf=0x%lx, unit=%ld, block#=%ld bcount=%ld\n",
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bp,unit,bp->b_blkno,bp->b_bcount);*/
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if (unit >= NMCD || bp->b_blkno < 0) {
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printf("mcdstrategy: unit = %d, blkno = %d, bcount = %d\n",
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unit, bp->b_blkno, bp->b_bcount);
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pg("mcd: mcdstratregy failure");
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bp->b_error = EINVAL;
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bp->b_flags |= B_ERROR;
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goto bad;
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}
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/* if device invalidated (e.g. media change, door open), error */
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if (!(cd->flags & MCDVALID)) {
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MCD_TRACE("strategy: drive not valid\n",0,0,0,0);
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bp->b_error = EIO;
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goto bad;
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}
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/* read only */
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if (!(bp->b_flags & B_READ)) {
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bp->b_error = EROFS;
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goto bad;
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}
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/* no data to read */
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if (bp->b_bcount == 0)
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goto done;
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/* for non raw access, check partition limits */
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if (mcd_part(bp->b_dev) != RAW_PART) {
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if (!(cd->flags & MCDLABEL)) {
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bp->b_error = EIO;
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goto bad;
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}
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/* adjust transfer if necessary */
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if (bounds_check_with_label(bp,&cd->dlabel,1) <= 0) {
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goto done;
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}
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}
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/* queue it */
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qp = &cd->head;
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s = splbio();
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disksort(qp,bp);
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splx(s);
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/* now check whether we can perform processing */
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mcd_start(unit);
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return;
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bad:
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bp->b_flags |= B_ERROR;
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done:
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bp->b_resid = bp->b_bcount;
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biodone(bp);
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return;
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}
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static void mcd_start(int unit)
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{
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struct mcd_data *cd = mcd_data + unit;
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struct buf *bp, *qp = &cd->head;
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struct partition *p;
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int part;
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register s = splbio();
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if (cd->flags & MCDMBXBSY)
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return;
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if ((bp = qp->b_actf) != 0) {
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/* block found to process, dequeue */
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/*MCD_TRACE("mcd_start: found block bp=0x%x\n",bp,0,0,0);*/
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qp->b_actf = bp->av_forw;
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splx(s);
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} else {
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/* nothing to do */
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splx(s);
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return;
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}
|
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|
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/* changed media? */
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if (!(cd->flags & MCDVALID)) {
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MCD_TRACE("mcd_start: drive not valid\n",0,0,0,0);
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return;
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}
|
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p = cd->dlabel.d_partitions + mcd_part(bp->b_dev);
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|
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cd->flags |= MCDMBXBSY;
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cd->mbx.unit = unit;
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cd->mbx.port = cd->iobase;
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cd->mbx.retry = MCD_RETRYS;
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cd->mbx.bp = bp;
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cd->mbx.p_offset = p->p_offset;
|
|
|
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/* calling the read routine */
|
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mcd_doread(MCD_S_BEGIN,&(cd->mbx));
|
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/* triggers mcd_start, when successful finished */
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return;
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}
|
|
|
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int mcdioctl(dev_t dev, int cmd, caddr_t addr, int flags)
|
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{
|
|
struct mcd_data *cd;
|
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int unit,part;
|
|
|
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unit = mcd_unit(dev);
|
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part = mcd_part(dev);
|
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cd = mcd_data + unit;
|
|
|
|
#ifdef MCDMINI
|
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return ENOTTY;
|
|
#else
|
|
if (!(cd->flags & MCDVALID))
|
|
return EIO;
|
|
MCD_TRACE("ioctl called 0x%x\n",cmd,0,0,0);
|
|
|
|
switch (cmd) {
|
|
case DIOCSBAD:
|
|
return EINVAL;
|
|
case DIOCGDINFO:
|
|
case DIOCGPART:
|
|
case DIOCWDINFO:
|
|
case DIOCSDINFO:
|
|
case DIOCWLABEL:
|
|
return ENOTTY;
|
|
case CDIOCPLAYTRACKS:
|
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return mcd_playtracks(unit, (struct ioc_play_track *) addr);
|
|
case CDIOCPLAYBLOCKS:
|
|
return mcd_play(unit, (struct mcd_read2 *) addr);
|
|
case CDIOCREADSUBCHANNEL:
|
|
return mcd_subchan(unit, (struct ioc_read_subchannel *) addr);
|
|
case CDIOREADTOCHEADER:
|
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return mcd_toc_header(unit, (struct ioc_toc_header *) addr);
|
|
case CDIOREADTOCENTRYS:
|
|
return mcd_toc_entry(unit, (struct ioc_read_toc_entry *) addr);
|
|
case CDIOCSETPATCH:
|
|
case CDIOCGETVOL:
|
|
case CDIOCSETVOL:
|
|
case CDIOCSETMONO:
|
|
case CDIOCSETSTERIO:
|
|
case CDIOCSETMUTE:
|
|
case CDIOCSETLEFT:
|
|
case CDIOCSETRIGHT:
|
|
return EINVAL;
|
|
case CDIOCRESUME:
|
|
return mcd_resume(unit);
|
|
case CDIOCPAUSE:
|
|
return mcd_pause(unit);
|
|
case CDIOCSTART:
|
|
return EINVAL;
|
|
case CDIOCSTOP:
|
|
return mcd_stop(unit);
|
|
case CDIOCEJECT:
|
|
return EINVAL;
|
|
case CDIOCSETDEBUG:
|
|
cd->debug = 1;
|
|
return 0;
|
|
case CDIOCCLRDEBUG:
|
|
cd->debug = 0;
|
|
return 0;
|
|
case CDIOCRESET:
|
|
return EINVAL;
|
|
default:
|
|
return ENOTTY;
|
|
}
|
|
/*NOTREACHED*/
|
|
#endif /*!MCDMINI*/
|
|
}
|
|
|
|
/* this could have been taken from scsi/cd.c, but it is not clear
|
|
* whether the scsi cd driver is linked in
|
|
*/
|
|
static int mcd_getdisklabel(int unit)
|
|
{
|
|
struct mcd_data *cd = mcd_data + unit;
|
|
|
|
if (cd->flags & MCDLABEL)
|
|
return -1;
|
|
|
|
bzero(&cd->dlabel,sizeof(struct disklabel));
|
|
strncpy(cd->dlabel.d_typename,"Mitsumi CD ROM ",16);
|
|
strncpy(cd->dlabel.d_packname,"unknown ",16);
|
|
cd->dlabel.d_secsize = cd->blksize;
|
|
cd->dlabel.d_nsectors = 100;
|
|
cd->dlabel.d_ntracks = 1;
|
|
cd->dlabel.d_ncylinders = (cd->disksize/100)+1;
|
|
cd->dlabel.d_secpercyl = 100;
|
|
cd->dlabel.d_secperunit = cd->disksize;
|
|
cd->dlabel.d_rpm = 300;
|
|
cd->dlabel.d_interleave = 1;
|
|
cd->dlabel.d_flags = D_REMOVABLE;
|
|
cd->dlabel.d_npartitions= 1;
|
|
cd->dlabel.d_partitions[0].p_offset = 0;
|
|
cd->dlabel.d_partitions[0].p_size = cd->disksize;
|
|
cd->dlabel.d_partitions[0].p_fstype = 9;
|
|
cd->dlabel.d_magic = DISKMAGIC;
|
|
cd->dlabel.d_magic2 = DISKMAGIC;
|
|
cd->dlabel.d_checksum = dkcksum(&cd->dlabel);
|
|
|
|
cd->flags |= MCDLABEL;
|
|
return 0;
|
|
}
|
|
|
|
int mcdsize(dev_t dev)
|
|
{
|
|
int size;
|
|
int unit = mcd_unit(dev);
|
|
struct mcd_data *cd = mcd_data + unit;
|
|
|
|
if (mcd_volinfo(unit) >= 0) {
|
|
cd->blksize = MCDBLK;
|
|
size = msf2hsg(cd->volinfo.vol_msf);
|
|
cd->disksize = size * (MCDBLK/DEV_BSIZE);
|
|
return 0;
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
/***************************************************************
|
|
* lower level of driver starts here
|
|
**************************************************************/
|
|
|
|
#ifdef NOTDEF
|
|
static char
|
|
irqs[] = {
|
|
0x00,0x00,0x10,0x20,0x00,0x30,0x00,0x00,
|
|
0x00,0x10,0x40,0x50,0x00,0x00,0x00,0x00
|
|
};
|
|
|
|
static char
|
|
drqs[] = {
|
|
0x00,0x01,0x00,0x03,0x00,0x05,0x06,0x07,
|
|
};
|
|
#endif
|
|
|
|
static void
|
|
mcd_configure(struct mcd_data *cd)
|
|
{
|
|
outb(cd->iobase+mcd_config,cd->config);
|
|
}
|
|
|
|
/* Wait for non-busy - return 0 on timeout */
|
|
static int
|
|
twiddle_thumbs(int port, int unit, int count, char *whine)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < count; i++) {
|
|
if (!(inb(port+MCD_FLAGS) & MCD_ST_BUSY)) {
|
|
return 1;
|
|
}
|
|
}
|
|
#ifdef MCD_TO_WARNING_ON
|
|
printf("mcd%d: timeout %s\n", unit, whine);
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
/* check to see if a Mitsumi CD-ROM is attached to the ISA bus */
|
|
|
|
int
|
|
mcd_probe(struct isa_device *dev)
|
|
{
|
|
int port = dev->id_iobase;
|
|
int unit = dev->id_unit;
|
|
int i, j;
|
|
int status;
|
|
unsigned char stbytes[3];
|
|
|
|
mcd_data[unit].flags = MCDPROBING;
|
|
|
|
#ifdef NOTDEF
|
|
/* get irq/drq configuration word */
|
|
mcd_data[unit].config = irqs[dev->id_irq]; /* | drqs[dev->id_drq];*/
|
|
#else
|
|
mcd_data[unit].config = 0;
|
|
#endif
|
|
|
|
/* send a reset */
|
|
outb(port+MCD_FLAGS, M_RESET);
|
|
|
|
/*
|
|
* delay awhile by getting any pending garbage (old data) and
|
|
* throwing it away.
|
|
*/
|
|
for (i = 1000000; i != 0; i--) {
|
|
inb(port+MCD_FLAGS);
|
|
}
|
|
|
|
/* Get status */
|
|
outb(port+MCD_DATA, MCD_CMDGETSTAT);
|
|
if (!twiddle_thumbs(port, unit, 1000000, "getting status")) {
|
|
return 0; /* Timeout */
|
|
}
|
|
status = inb(port+MCD_DATA);
|
|
/* 0x20 == empty drive */
|
|
/* 0x30 == MCDEXISTS == drive closed with CDROM inserted */
|
|
/* 0x80 == drive pulled out but door closed */
|
|
/* 0xa0 == drive pulled out and door open */
|
|
if (status != 0x20 && status != MCDEXISTS && status != 0x80 &&
|
|
status != 0xa0)
|
|
return 0; /* Not actually a Mitsumi drive here */
|
|
/* Get version information */
|
|
outb(port+MCD_DATA, MCD_CMDCONTINFO);
|
|
for (j = 0; j < 3; j++) {
|
|
if (!twiddle_thumbs(port, unit, 3000, "getting version info")) {
|
|
return 0;
|
|
}
|
|
stbytes[j] = (inb(port+MCD_DATA) & 0xFF);
|
|
}
|
|
printf("mcd%d: version information is %x %c %x\n", unit,
|
|
stbytes[0], stbytes[1], stbytes[2]);
|
|
if (stbytes[1] >= 4) {
|
|
outb(port+MCD_CTRL, M_PICKLE);
|
|
printf("mcd%d: Adjusted for newer drive model\n", unit);
|
|
}
|
|
return 4;
|
|
}
|
|
|
|
|
|
static int
|
|
mcd_waitrdy(int port,int dly)
|
|
{
|
|
int i;
|
|
|
|
/* wait until xfer port senses data ready */
|
|
for (i=0; i<dly; i++) {
|
|
if ((inb(port+mcd_xfer) & MCD_ST_BUSY)==0)
|
|
return 0;
|
|
mcd_delay(1);
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
static int
|
|
mcd_getreply(int unit,int dly)
|
|
{
|
|
int i;
|
|
struct mcd_data *cd = mcd_data + unit;
|
|
int port = cd->iobase;
|
|
|
|
/* wait data to become ready */
|
|
if (mcd_waitrdy(port,dly)<0) {
|
|
#ifdef MCD_TO_WARNING_ON
|
|
printf("mcd%d: timeout getreply\n",unit);
|
|
#endif
|
|
return -1;
|
|
}
|
|
|
|
/* get the data */
|
|
return inb(port+mcd_status) & 0xFF;
|
|
}
|
|
|
|
static int
|
|
mcd_getstat(int unit,int sflg)
|
|
{
|
|
int i;
|
|
struct mcd_data *cd = mcd_data + unit;
|
|
int port = cd->iobase;
|
|
|
|
/* get the status */
|
|
if (sflg)
|
|
outb(port+mcd_command, MCD_CMDGETSTAT);
|
|
i = mcd_getreply(unit,DELAY_GETREPLY);
|
|
if (i<0) return -1;
|
|
|
|
cd->status = i;
|
|
|
|
mcd_setflags(unit,cd);
|
|
return cd->status;
|
|
}
|
|
|
|
static void
|
|
mcd_setflags(int unit, struct mcd_data *cd)
|
|
{
|
|
/* check flags */
|
|
if (cd->status & (MCDDSKCHNG|MCDDOOROPEN)) {
|
|
MCD_TRACE("getstat: sensed DSKCHNG or DOOROPEN\n",0,0,0,0);
|
|
cd->flags &= ~MCDVALID;
|
|
}
|
|
|
|
#ifndef MCDMINI
|
|
if (cd->status & MCDAUDIOBSY)
|
|
cd->audio_status = CD_AS_PLAY_IN_PROGRESS;
|
|
else if (cd->audio_status == CD_AS_PLAY_IN_PROGRESS)
|
|
cd->audio_status = CD_AS_PLAY_COMPLETED;
|
|
#endif
|
|
}
|
|
|
|
static int
|
|
mcd_get(int unit, char *buf, int nmax)
|
|
{
|
|
int port = mcd_data[unit].iobase;
|
|
int i,k;
|
|
|
|
for (i=0; i<nmax; i++) {
|
|
/* wait for data */
|
|
if ((k = mcd_getreply(unit,DELAY_GETREPLY)) < 0) {
|
|
#ifdef MCD_TO_WARNING_ON
|
|
printf("mcd%d: timeout mcd_get\n",unit);
|
|
#endif
|
|
return -1;
|
|
}
|
|
buf[i] = k;
|
|
}
|
|
return i;
|
|
}
|
|
|
|
static int
|
|
mcd_send(int unit, int cmd,int nretrys)
|
|
{
|
|
int i,k;
|
|
int port = mcd_data[unit].iobase;
|
|
|
|
/*MCD_TRACE("mcd_send: command = 0x%x\n",cmd,0,0,0);*/
|
|
for (i=0; i<nretrys; i++) {
|
|
outb(port+mcd_command, cmd);
|
|
if ((k=mcd_getstat(unit,0)) != -1) {
|
|
break;
|
|
}
|
|
}
|
|
if (i == nretrys) {
|
|
printf("mcd%d: mcd_send retry cnt exceeded\n",unit);
|
|
return -1;
|
|
}
|
|
/*MCD_TRACE("mcd_send: status = 0x%x\n",k,0,0,0);*/
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
bcd2bin(bcd_t b)
|
|
{
|
|
return (b >> 4) * 10 + (b & 15);
|
|
}
|
|
|
|
static bcd_t
|
|
bin2bcd(int b)
|
|
{
|
|
return ((b / 10) << 4) | (b % 10);
|
|
}
|
|
|
|
static void
|
|
hsg2msf(int hsg, bcd_t *msf)
|
|
{
|
|
hsg += 150;
|
|
M_msf(msf) = bin2bcd(hsg / 4500);
|
|
hsg %= 4500;
|
|
S_msf(msf) = bin2bcd(hsg / 75);
|
|
F_msf(msf) = bin2bcd(hsg % 75);
|
|
}
|
|
|
|
static int
|
|
msf2hsg(bcd_t *msf)
|
|
{
|
|
return (bcd2bin(M_msf(msf)) * 60 +
|
|
bcd2bin(S_msf(msf))) * 75 +
|
|
bcd2bin(F_msf(msf)) - 150;
|
|
}
|
|
|
|
static int
|
|
mcd_volinfo(int unit)
|
|
{
|
|
struct mcd_data *cd = mcd_data + unit;
|
|
int i;
|
|
|
|
/*MCD_TRACE("mcd_volinfo: enter\n",0,0,0,0);*/
|
|
|
|
/* Get the status, in case the disc has been changed */
|
|
if (mcd_getstat(unit, 1) < 0) return EIO;
|
|
|
|
/* Just return if we already have it */
|
|
if (cd->flags & MCDVOLINFO) return 0;
|
|
|
|
/* send volume info command */
|
|
if (mcd_send(unit,MCD_CMDGETVOLINFO,MCD_RETRYS) < 0)
|
|
return -1;
|
|
|
|
/* get data */
|
|
if (mcd_get(unit,(char*) &cd->volinfo,sizeof(struct mcd_volinfo)) < 0) {
|
|
printf("mcd%d: mcd_volinfo: error read data\n",unit);
|
|
return -1;
|
|
}
|
|
|
|
if (cd->volinfo.trk_low != 0 || cd->volinfo.trk_high != 0) {
|
|
cd->flags |= MCDVOLINFO; /* volinfo is OK */
|
|
return 0;
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
void
|
|
mcdintr(unit)
|
|
int unit;
|
|
{
|
|
int port = mcd_data[unit].iobase;
|
|
u_int i;
|
|
|
|
MCD_TRACE("stray interrupt xfer=0x%x\n",inb(port+mcd_xfer),0,0,0);
|
|
|
|
/* just read out status and ignore the rest */
|
|
if ((inb(port+mcd_xfer)&0xFF) != 0xFF) {
|
|
i = inb(port+mcd_status);
|
|
}
|
|
}
|
|
|
|
/* state machine to process read requests
|
|
* initialize with MCD_S_BEGIN: calculate sizes, and read status
|
|
* MCD_S_WAITSTAT: wait for status reply, set mode
|
|
* MCD_S_WAITMODE: waits for status reply from set mode, set read command
|
|
* MCD_S_WAITREAD: wait for read ready, read data
|
|
*/
|
|
static struct mcd_mbx *mbxsave;
|
|
|
|
static void
|
|
mcd_doread(int state, struct mcd_mbx *mbxin)
|
|
{
|
|
struct mcd_mbx *mbx = (state!=MCD_S_BEGIN) ? mbxsave : mbxin;
|
|
int unit = mbx->unit;
|
|
int port = mbx->port;
|
|
struct buf *bp = mbx->bp;
|
|
struct mcd_data *cd = mcd_data + unit;
|
|
|
|
int rm,i,k;
|
|
struct mcd_read2 rbuf;
|
|
int blknum;
|
|
caddr_t addr;
|
|
|
|
loop:
|
|
switch (state) {
|
|
case MCD_S_BEGIN:
|
|
mbx = mbxsave = mbxin;
|
|
|
|
case MCD_S_BEGIN1:
|
|
/* get status */
|
|
outb(port+mcd_command, MCD_CMDGETSTAT);
|
|
mbx->count = RDELAY_WAITSTAT;
|
|
timeout((timeout_func_t)mcd_doread,
|
|
(caddr_t)MCD_S_WAITSTAT,hz/100); /* XXX */
|
|
return;
|
|
case MCD_S_WAITSTAT:
|
|
untimeout((timeout_func_t)mcd_doread,(caddr_t)MCD_S_WAITSTAT);
|
|
if (mbx->count-- >= 0) {
|
|
if (inb(port+mcd_xfer) & MCD_ST_BUSY) {
|
|
timeout((timeout_func_t)mcd_doread,
|
|
(caddr_t)MCD_S_WAITSTAT,hz/100); /* XXX */
|
|
return;
|
|
}
|
|
mcd_setflags(unit,cd);
|
|
MCD_TRACE("got WAITSTAT delay=%d\n",
|
|
RDELAY_WAITSTAT-mbx->count,0,0,0);
|
|
/* reject, if audio active */
|
|
if (cd->status & MCDAUDIOBSY) {
|
|
printf("mcd%d: audio is active\n",unit);
|
|
goto readerr;
|
|
}
|
|
|
|
/* to check for raw/cooked mode */
|
|
if (cd->flags & MCDREADRAW) {
|
|
rm = MCD_MD_RAW;
|
|
mbx->sz = MCDRBLK;
|
|
} else {
|
|
rm = MCD_MD_COOKED;
|
|
mbx->sz = cd->blksize;
|
|
}
|
|
|
|
mbx->count = RDELAY_WAITMODE;
|
|
|
|
mcd_put(port+mcd_command, MCD_CMDSETMODE);
|
|
mcd_put(port+mcd_command, rm);
|
|
timeout((timeout_func_t)mcd_doread,
|
|
(caddr_t)MCD_S_WAITMODE,hz/100); /* XXX */
|
|
return;
|
|
} else {
|
|
#ifdef MCD_TO_WARNING_ON
|
|
printf("mcd%d: timeout getstatus\n",unit);
|
|
#endif
|
|
goto readerr;
|
|
}
|
|
|
|
case MCD_S_WAITMODE:
|
|
untimeout((timeout_func_t)mcd_doread,(caddr_t)MCD_S_WAITMODE);
|
|
if (mbx->count-- < 0) {
|
|
#ifdef MCD_TO_WARNING_ON
|
|
printf("mcd%d: timeout set mode\n",unit);
|
|
#endif
|
|
goto readerr;
|
|
}
|
|
if (inb(port+mcd_xfer) & MCD_ST_BUSY) {
|
|
timeout((timeout_func_t)mcd_doread,(caddr_t)MCD_S_WAITMODE,hz/100);
|
|
return;
|
|
}
|
|
mcd_setflags(unit,cd);
|
|
MCD_TRACE("got WAITMODE delay=%d\n",
|
|
RDELAY_WAITMODE-mbx->count,0,0,0);
|
|
/* for first block */
|
|
mbx->nblk = (bp->b_bcount + (mbx->sz-1)) / mbx->sz;
|
|
mbx->skip = 0;
|
|
|
|
nextblock:
|
|
blknum = (bp->b_blkno / (mbx->sz/DEV_BSIZE))
|
|
+ mbx->p_offset + mbx->skip/mbx->sz;
|
|
|
|
MCD_TRACE("mcd_doread: read blknum=%d for bp=0x%x\n",
|
|
blknum,bp,0,0);
|
|
|
|
/* build parameter block */
|
|
hsg2msf(blknum,rbuf.start_msf);
|
|
|
|
/* send the read command */
|
|
mcd_put(port+mcd_command,MCD_CMDREAD2);
|
|
mcd_put(port+mcd_command,rbuf.start_msf[0]);
|
|
mcd_put(port+mcd_command,rbuf.start_msf[1]);
|
|
mcd_put(port+mcd_command,rbuf.start_msf[2]);
|
|
mcd_put(port+mcd_command,0);
|
|
mcd_put(port+mcd_command,0);
|
|
mcd_put(port+mcd_command,1);
|
|
mbx->count = RDELAY_WAITREAD;
|
|
timeout((timeout_func_t)mcd_doread,
|
|
(caddr_t)MCD_S_WAITREAD,hz/100); /* XXX */
|
|
return;
|
|
case MCD_S_WAITREAD:
|
|
untimeout((timeout_func_t)mcd_doread,(caddr_t)MCD_S_WAITREAD);
|
|
if (mbx->count-- > 0) {
|
|
k = inb(port+mcd_xfer);
|
|
if ((k & 2)==0) {
|
|
MCD_TRACE("got data delay=%d\n",
|
|
RDELAY_WAITREAD-mbx->count,0,0,0);
|
|
/* data is ready */
|
|
addr = bp->b_un.b_addr + mbx->skip;
|
|
outb(port+mcd_ctl2,0x04); /* XXX */
|
|
for (i=0; i<mbx->sz; i++)
|
|
*addr++ = inb(port+mcd_rdata);
|
|
outb(port+mcd_ctl2,0x0c); /* XXX */
|
|
|
|
if (--mbx->nblk > 0) {
|
|
mbx->skip += mbx->sz;
|
|
goto nextblock;
|
|
}
|
|
|
|
/* return buffer */
|
|
bp->b_resid = 0;
|
|
biodone(bp);
|
|
|
|
cd->flags &= ~MCDMBXBSY;
|
|
mcd_start(mbx->unit);
|
|
return;
|
|
}
|
|
if ((k & 4)==0)
|
|
mcd_getstat(unit,0);
|
|
timeout((timeout_func_t)mcd_doread,
|
|
(caddr_t)MCD_S_WAITREAD,hz/100); /* XXX */
|
|
return;
|
|
} else {
|
|
#ifdef MCD_TO_WARNING_ON
|
|
printf("mcd%d: timeout read data\n",unit);
|
|
#endif
|
|
goto readerr;
|
|
}
|
|
}
|
|
|
|
readerr:
|
|
if (mbx->retry-- > 0) {
|
|
#ifdef MCD_TO_WARNING_ON
|
|
printf("mcd%d: retrying\n",unit);
|
|
#endif
|
|
state = MCD_S_BEGIN1;
|
|
goto loop;
|
|
}
|
|
|
|
/* invalidate the buffer */
|
|
bp->b_flags |= B_ERROR;
|
|
bp->b_resid = bp->b_bcount;
|
|
biodone(bp);
|
|
mcd_start(mbx->unit);
|
|
return;
|
|
|
|
#ifdef NOTDEF
|
|
printf("mcd%d: unit timeout, resetting\n",mbx->unit);
|
|
outb(mbx->port+mcd_reset,MCD_CMDRESET);
|
|
DELAY(300000);
|
|
(void)mcd_getstat(mbx->unit,1);
|
|
(void)mcd_getstat(mbx->unit,1);
|
|
/*cd->status &= ~MCDDSKCHNG; */
|
|
cd->debug = 1; /* preventive set debug mode */
|
|
|
|
#endif
|
|
|
|
}
|
|
|
|
#ifndef MCDMINI
|
|
static int
|
|
mcd_setmode(int unit, int mode)
|
|
{
|
|
struct mcd_data *cd = mcd_data + unit;
|
|
int port = cd->iobase;
|
|
int retry;
|
|
|
|
printf("mcd%d: setting mode to %d\n", unit, mode);
|
|
for(retry=0; retry<MCD_RETRYS; retry++)
|
|
{
|
|
outb(port+mcd_command, MCD_CMDSETMODE);
|
|
outb(port+mcd_command, mode);
|
|
if (mcd_getstat(unit, 0) != -1) return 0;
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
static int
|
|
mcd_toc_header(int unit, struct ioc_toc_header *th)
|
|
{
|
|
struct mcd_data *cd = mcd_data + unit;
|
|
|
|
if (mcd_volinfo(unit) < 0) {
|
|
return ENXIO;
|
|
}
|
|
|
|
th->len = msf2hsg(cd->volinfo.vol_msf);
|
|
th->starting_track = bcd2bin(cd->volinfo.trk_low);
|
|
th->ending_track = bcd2bin(cd->volinfo.trk_high);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
mcd_read_toc(int unit)
|
|
{
|
|
struct mcd_data *cd = mcd_data + unit;
|
|
struct ioc_toc_header th;
|
|
struct mcd_qchninfo q;
|
|
int rc, trk, idx, retry;
|
|
|
|
/* Only read TOC if needed */
|
|
if (cd->flags & MCDTOC) {
|
|
return 0;
|
|
}
|
|
|
|
printf("mcd%d: reading toc header\n", unit);
|
|
if (mcd_toc_header(unit, &th) != 0) {
|
|
return ENXIO;
|
|
}
|
|
|
|
printf("mcd%d: stopping play\n", unit);
|
|
if ((rc=mcd_stop(unit)) != 0) {
|
|
return rc;
|
|
}
|
|
|
|
/* try setting the mode twice */
|
|
if (mcd_setmode(unit, MCD_MD_TOC) != 0) {
|
|
return EIO;
|
|
}
|
|
if (mcd_setmode(unit, MCD_MD_TOC) != 0) {
|
|
return EIO;
|
|
}
|
|
|
|
printf("mcd%d: get_toc reading qchannel info\n",unit);
|
|
for(trk=th.starting_track; trk<=th.ending_track; trk++)
|
|
cd->toc[trk].idx_no = 0;
|
|
trk = th.ending_track - th.starting_track + 1;
|
|
for(retry=0; retry<300 && trk>0; retry++)
|
|
{
|
|
if (mcd_getqchan(unit, &q) < 0) break;
|
|
idx = bcd2bin(q.idx_no);
|
|
if (idx>0 && idx < MCD_MAXTOCS && q.trk_no==0) {
|
|
if (cd->toc[idx].idx_no == 0) {
|
|
cd->toc[idx] = q;
|
|
trk--;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (mcd_setmode(unit, MCD_MD_COOKED) != 0) {
|
|
return EIO;
|
|
}
|
|
|
|
if (trk != 0) {
|
|
return ENXIO;
|
|
}
|
|
|
|
/* add a fake last+1 */
|
|
idx = th.ending_track + 1;
|
|
cd->toc[idx].ctrl_adr = cd->toc[idx-1].ctrl_adr;
|
|
cd->toc[idx].trk_no = 0;
|
|
cd->toc[idx].idx_no = 0xAA;
|
|
cd->toc[idx].hd_pos_msf[0] = cd->volinfo.vol_msf[0];
|
|
cd->toc[idx].hd_pos_msf[1] = cd->volinfo.vol_msf[1];
|
|
cd->toc[idx].hd_pos_msf[2] = cd->volinfo.vol_msf[2];
|
|
|
|
cd->flags |= MCDTOC;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
mcd_toc_entry(int unit, struct ioc_read_toc_entry *te)
|
|
{
|
|
struct mcd_data *cd = mcd_data + unit;
|
|
struct ret_toc {
|
|
struct ioc_toc_header th;
|
|
struct cd_toc_entry rt;
|
|
} ret_toc;
|
|
struct ioc_toc_header th;
|
|
int rc, i;
|
|
|
|
/* Make sure we have a valid toc */
|
|
if ((rc=mcd_read_toc(unit)) != 0) {
|
|
return rc;
|
|
}
|
|
|
|
/* find the toc to copy*/
|
|
i = te->starting_track;
|
|
if (i == MCD_LASTPLUS1) {
|
|
i = bcd2bin(cd->volinfo.trk_high) + 1;
|
|
}
|
|
|
|
/* verify starting track */
|
|
if (i < bcd2bin(cd->volinfo.trk_low) ||
|
|
i > bcd2bin(cd->volinfo.trk_high)+1) {
|
|
return EINVAL;
|
|
}
|
|
|
|
/* do we have room */
|
|
if (te->data_len < sizeof(struct ioc_toc_header) +
|
|
sizeof(struct cd_toc_entry)) {
|
|
return EINVAL;
|
|
}
|
|
|
|
/* Copy the toc header */
|
|
if (mcd_toc_header(unit, &th) < 0) {
|
|
return EIO;
|
|
}
|
|
ret_toc.th = th;
|
|
|
|
/* copy the toc data */
|
|
ret_toc.rt.control = cd->toc[i].ctrl_adr;
|
|
ret_toc.rt.addr_type = te->address_format;
|
|
ret_toc.rt.track = i;
|
|
if (te->address_format == CD_MSF_FORMAT) {
|
|
ret_toc.rt.addr.addr[1] = cd->toc[i].hd_pos_msf[0];
|
|
ret_toc.rt.addr.addr[2] = cd->toc[i].hd_pos_msf[1];
|
|
ret_toc.rt.addr.addr[3] = cd->toc[i].hd_pos_msf[2];
|
|
}
|
|
|
|
/* copy the data back */
|
|
copyout(&ret_toc, te->data, sizeof(struct cd_toc_entry)
|
|
+ sizeof(struct ioc_toc_header));
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
mcd_stop(int unit)
|
|
{
|
|
struct mcd_data *cd = mcd_data + unit;
|
|
|
|
if (mcd_send(unit, MCD_CMDSTOPAUDIO, MCD_RETRYS) < 0) {
|
|
return ENXIO;
|
|
}
|
|
cd->audio_status = CD_AS_PLAY_COMPLETED;
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
mcd_getqchan(int unit, struct mcd_qchninfo *q)
|
|
{
|
|
struct mcd_data *cd = mcd_data + unit;
|
|
|
|
if (mcd_send(unit, MCD_CMDGETQCHN, MCD_RETRYS) < 0) {
|
|
return -1;
|
|
}
|
|
if (mcd_get(unit, (char *) q, sizeof(struct mcd_qchninfo)) < 0) {
|
|
return -1;
|
|
}
|
|
if (cd->debug) {
|
|
printf("mcd%d: qchannel ctl=%d, t=%d, i=%d, ttm=%d:%d.%d dtm=%d:%d.%d\n",
|
|
unit,
|
|
q->ctrl_adr, q->trk_no, q->idx_no,
|
|
q->trk_size_msf[0], q->trk_size_msf[1], q->trk_size_msf[2],
|
|
q->trk_size_msf[0], q->trk_size_msf[1], q->trk_size_msf[2]);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
mcd_subchan(int unit, struct ioc_read_subchannel *sc)
|
|
{
|
|
struct mcd_data *cd = mcd_data + unit;
|
|
struct mcd_qchninfo q;
|
|
struct cd_sub_channel_info data;
|
|
|
|
printf("mcd%d: subchan af=%d, df=%d\n", unit,
|
|
sc->address_format,
|
|
sc->data_format);
|
|
if (sc->address_format != CD_MSF_FORMAT) {
|
|
return EIO;
|
|
}
|
|
if (sc->data_format != CD_CURRENT_POSITION) {
|
|
return EIO;
|
|
}
|
|
if (mcd_getqchan(unit, &q) < 0) {
|
|
return EIO;
|
|
}
|
|
|
|
data.header.audio_status = cd->audio_status;
|
|
data.what.position.data_format = CD_MSF_FORMAT;
|
|
data.what.position.track_number = bcd2bin(q.trk_no);
|
|
|
|
if (copyout(&data, sc->data, sizeof(struct cd_sub_channel_info))!=0) {
|
|
return EFAULT;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
mcd_playtracks(int unit, struct ioc_play_track *pt)
|
|
{
|
|
struct mcd_data *cd = mcd_data + unit;
|
|
struct mcd_read2 pb;
|
|
int a = pt->start_track;
|
|
int z = pt->end_track;
|
|
int rc;
|
|
|
|
if ((rc = mcd_read_toc(unit)) != 0) {
|
|
return rc;
|
|
}
|
|
printf("mcd%d: playtracks from %d:%d to %d:%d\n", unit,
|
|
a, pt->start_index, z, pt->end_index);
|
|
|
|
if (a < cd->volinfo.trk_low || a > cd->volinfo.trk_high || a > z ||
|
|
z < cd->volinfo.trk_low || z > cd->volinfo.trk_high) {
|
|
return EINVAL;
|
|
}
|
|
|
|
pb.start_msf[0] = cd->toc[a].hd_pos_msf[0];
|
|
pb.start_msf[1] = cd->toc[a].hd_pos_msf[1];
|
|
pb.start_msf[2] = cd->toc[a].hd_pos_msf[2];
|
|
pb.end_msf[0] = cd->toc[z+1].hd_pos_msf[0];
|
|
pb.end_msf[1] = cd->toc[z+1].hd_pos_msf[1];
|
|
pb.end_msf[2] = cd->toc[z+1].hd_pos_msf[2];
|
|
|
|
return mcd_play(unit, &pb);
|
|
}
|
|
|
|
static int
|
|
mcd_play(int unit, struct mcd_read2 *pb)
|
|
{
|
|
struct mcd_data *cd = mcd_data + unit;
|
|
int port = cd->iobase;
|
|
int retry, st;
|
|
|
|
cd->lastpb = *pb;
|
|
for(retry=0; retry<MCD_RETRYS; retry++) {
|
|
outb(port+mcd_command, MCD_CMDREAD2);
|
|
outb(port+mcd_command, pb->start_msf[0]);
|
|
outb(port+mcd_command, pb->start_msf[1]);
|
|
outb(port+mcd_command, pb->start_msf[2]);
|
|
outb(port+mcd_command, pb->end_msf[0]);
|
|
outb(port+mcd_command, pb->end_msf[1]);
|
|
outb(port+mcd_command, pb->end_msf[2]);
|
|
if ((st=mcd_getstat(unit, 0)) != -1) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (cd->debug) {
|
|
printf("mcd%d: mcd_play retry=%d, status=%d\n", unit, retry, st);
|
|
}
|
|
if (st == -1) {
|
|
return ENXIO;
|
|
}
|
|
cd->audio_status = CD_AS_PLAY_IN_PROGRESS;
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
mcd_pause(int unit)
|
|
{
|
|
struct mcd_data *cd = mcd_data + unit;
|
|
struct mcd_qchninfo q;
|
|
int rc;
|
|
|
|
/* Verify current status */
|
|
if (cd->audio_status != CD_AS_PLAY_IN_PROGRESS) {
|
|
printf("mcd%d: pause attempted when not playing\n", unit);
|
|
return EINVAL;
|
|
}
|
|
|
|
/* Get the current position */
|
|
if (mcd_getqchan(unit, &q) < 0) {
|
|
return EIO;
|
|
}
|
|
|
|
/* Copy it into lastpb */
|
|
cd->lastpb.start_msf[0] = q.hd_pos_msf[0];
|
|
cd->lastpb.start_msf[1] = q.hd_pos_msf[1];
|
|
cd->lastpb.start_msf[2] = q.hd_pos_msf[2];
|
|
|
|
/* Stop playing */
|
|
if ((rc=mcd_stop(unit)) != 0) {
|
|
return rc;
|
|
}
|
|
|
|
/* Set the proper status and exit */
|
|
cd->audio_status = CD_AS_PLAY_PAUSED;
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
mcd_resume(int unit)
|
|
{
|
|
struct mcd_data *cd = mcd_data + unit;
|
|
|
|
if (cd->audio_status != CD_AS_PLAY_PAUSED) {
|
|
return EINVAL;
|
|
}
|
|
return mcd_play(unit, &cd->lastpb);
|
|
}
|
|
#endif /*!MCDMINI*/
|
|
|
|
#endif /* NMCD > 0 */
|