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-rw-r--r--sys/i386/isa/mcd.c1354
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diff --git a/sys/i386/isa/mcd.c b/sys/i386/isa/mcd.c
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--- /dev/null
+++ b/sys/i386/isa/mcd.c
@@ -0,0 +1,1354 @@
+/*
+ * Copyright 1993 by Holger Veit (data part)
+ * Copyright 1993 by Brian Moore (audio part)
+ * Changes Copyright 1993 by Gary Clark II
+ *
+ * Rewrote probe routine to work on newer Mitsumi drives.
+ * Additional changes (C) 1994 by Jordan K. Hubbard
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This software was developed by Holger Veit and Brian Moore
+ * for use with "386BSD" and similar operating systems.
+ * "Similar operating systems" includes mainly non-profit oriented
+ * systems for research and education, including but not restricted to
+ * "NetBSD", "FreeBSD", "Mach" (by CMU).
+ * 4. Neither the name of the developer(s) nor the name "386BSD"
+ * may be used to endorse or promote products derived from this
+ * software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE DEVELOPER(S) ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE DEVELOPER(S) BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
+ * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * $Id: mcd.c,v 1.19 1994/08/27 13:15:25 ache Exp $
+ */
+static char COPYRIGHT[] = "mcd-driver (C)1993 by H.Veit & B.Moore";
+
+#include "mcd.h"
+#if NMCD > 0
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/conf.h>
+#include <sys/file.h>
+#include <sys/buf.h>
+#include <sys/stat.h>
+#include <sys/uio.h>
+#include <sys/ioctl.h>
+#include <sys/cdio.h>
+#include <sys/errno.h>
+#include <sys/dkbad.h>
+#include <sys/disklabel.h>
+#include <i386/isa/isa.h>
+#include <i386/isa/isa_device.h>
+#include <i386/isa/mcdreg.h>
+
+#define MIN_DELAY 10
+
+/* user definable options */
+/*#define MCD_TO_WARNING_ON*/ /* define to get timeout messages */
+/*#define MCDMINI*/ /* define for a mini configuration for boot kernel */
+/*#define DEBUG*/
+
+#ifdef MCDMINI
+#define MCD_TRACE(fmt,a,b,c,d)
+#ifdef MCD_TO_WARNING_ON
+#undef MCD_TO_WARNING_ON
+#endif
+#else
+#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);}}
+#endif
+
+#define mcd_part(dev) ((minor(dev)) & 7)
+#define mcd_unit(dev) (((minor(dev)) & 0x38) >> 3)
+#define mcd_phys(dev) (((minor(dev)) & 0x40) >> 6)
+#define RAW_PART 3
+
+/* flags */
+#define MCDOPEN 0x0001 /* device opened */
+#define MCDVALID 0x0002 /* parameters loaded */
+#define MCDINIT 0x0004 /* device is init'd */
+#define MCDWAIT 0x0008 /* waiting for something */
+#define MCDLABEL 0x0010 /* label is read */
+#define MCDPROBING 0x0020 /* probing */
+#define MCDREADRAW 0x0040 /* read raw mode (2352 bytes) */
+#define MCDVOLINFO 0x0080 /* already read volinfo */
+#define MCDTOC 0x0100 /* already read toc */
+#define MCDMBXBSY 0x0200 /* local mbx is busy */
+
+/* status */
+#define MCDAUDIOBSY MCD_ST_AUDIOBSY /* playing audio */
+#define MCDDSKCHNG MCD_ST_DSKCHNG /* sensed change of disk */
+#define MCDDSKIN MCD_ST_DSKIN /* sensed disk in drive */
+#define MCDDOOROPEN MCD_ST_DOOROPEN /* sensed door open */
+
+/* These are apparently the different states a mitsumi can get up to */
+#define MCDCDABSENT 0x0030
+#define MCDCDPRESENT 0x0020
+#define MCDSCLOSED 0x0080
+#define MCDSOPEN 0x00a0
+
+/* toc */
+#define MCD_MAXTOCS 104 /* from the Linux driver */
+#define MCD_LASTPLUS1 170 /* special toc entry */
+
+struct mcd_mbx {
+ short unit;
+ short port;
+ short retry;
+ short nblk;
+ int sz;
+ u_long skip;
+ struct buf *bp;
+ int p_offset;
+ short count;
+};
+
+struct mcd_data {
+ short config;
+ short flags;
+ short status;
+ int blksize;
+ u_long disksize;
+ int iobase;
+ struct disklabel dlabel;
+ int partflags[MAXPARTITIONS];
+ int openflags;
+ struct mcd_volinfo volinfo;
+#ifndef MCDMINI
+ struct mcd_qchninfo toc[MCD_MAXTOCS];
+ short audio_status;
+ struct mcd_read2 lastpb;
+#endif
+ short debug;
+ struct buf head; /* head of buf queue */
+ struct mcd_mbx mbx;
+} mcd_data[NMCD];
+
+/* reader state machine */
+#define MCD_S_BEGIN 0
+#define MCD_S_BEGIN1 1
+#define MCD_S_WAITSTAT 2
+#define MCD_S_WAITMODE 3
+#define MCD_S_WAITREAD 4
+
+/* prototypes */
+int mcdopen(dev_t dev);
+int mcdclose(dev_t dev);
+void mcdstrategy(struct buf *bp);
+int mcdioctl(dev_t dev, int cmd, caddr_t addr, int flags);
+int mcdsize(dev_t dev);
+static void mcd_done(struct mcd_mbx *mbx);
+static void mcd_start(int unit);
+static int mcd_getdisklabel(int unit);
+static void mcd_configure(struct mcd_data *cd);
+static int mcd_get(int unit, char *buf, int nmax);
+static void mcd_setflags(int unit,struct mcd_data *cd);
+static int mcd_getstat(int unit,int sflg);
+static int mcd_send(int unit, int cmd,int nretrys);
+static int bcd2bin(bcd_t b);
+static bcd_t bin2bcd(int b);
+static void hsg2msf(int hsg, bcd_t *msf);
+static int msf2hsg(bcd_t *msf);
+static int mcd_volinfo(int unit);
+static int mcd_waitrdy(int port,int dly);
+static void mcd_doread(int state, struct mcd_mbx *mbxin);
+#ifndef MCDMINI
+static int mcd_setmode(int unit, int mode);
+static int mcd_getqchan(int unit, struct mcd_qchninfo *q);
+static int mcd_subchan(int unit, struct ioc_read_subchannel *sc);
+static int mcd_toc_header(int unit, struct ioc_toc_header *th);
+static int mcd_read_toc(int unit);
+static int mcd_toc_entry(int unit, struct ioc_read_toc_entry *te);
+static int mcd_stop(int unit);
+static int mcd_playtracks(int unit, struct ioc_play_track *pt);
+static int mcd_play(int unit, struct mcd_read2 *pb);
+static int mcd_pause(int unit);
+static int mcd_resume(int unit);
+#endif
+
+extern int hz;
+extern int mcd_probe(struct isa_device *dev);
+extern int mcd_attach(struct isa_device *dev);
+struct isa_driver mcddriver = { mcd_probe, mcd_attach, "mcd" };
+
+#define mcd_put(port,byte) outb(port,byte)
+
+#define MCD_RETRYS 5
+#define MCD_RDRETRYS 8
+
+#define MCDBLK 2048 /* for cooked mode */
+#define MCDRBLK 2352 /* for raw mode */
+
+/* several delays */
+#define RDELAY_WAITSTAT 300
+#define RDELAY_WAITMODE 300
+#define RDELAY_WAITREAD 800
+
+#define DELAY_STATUS 10000l /* 10000 * 1us */
+#define DELAY_GETREPLY 200000l /* 200000 * 2us */
+#define DELAY_SEEKREAD 20000l /* 20000 * 1us */
+
+int mcd_attach(struct isa_device *dev)
+{
+ struct mcd_data *cd = mcd_data + dev->id_unit;
+ int i;
+
+ cd->iobase = dev->id_iobase;
+ cd->flags |= MCDINIT;
+ cd->openflags = 0;
+ for (i=0; i<MAXPARTITIONS; i++) cd->partflags[i] = 0;
+
+#ifdef NOTYET
+ /* wire controller for interrupts and dma */
+ mcd_configure(cd);
+#endif
+
+ return 1;
+}
+
+int mcdopen(dev_t dev)
+{
+ int unit,part,phys;
+ struct mcd_data *cd;
+
+ unit = mcd_unit(dev);
+ if (unit >= NMCD)
+ return ENXIO;
+
+ cd = mcd_data + unit;
+ part = mcd_part(dev);
+ phys = mcd_phys(dev);
+
+ /* not initialized*/
+ if (!(cd->flags & MCDINIT))
+ return ENXIO;
+
+ /* invalidated in the meantime? mark all open part's invalid */
+ if (!(cd->flags & MCDVALID) && cd->openflags)
+ return ENXIO;
+
+ if (mcd_getstat(unit,1) < 0)
+ return ENXIO;
+
+ /* XXX get a default disklabel */
+ mcd_getdisklabel(unit);
+
+ if (mcdsize(dev) < 0) {
+ printf("mcd%d: failed to get disk size\n",unit);
+ return ENXIO;
+ } else
+ cd->flags |= MCDVALID;
+
+MCD_TRACE("open: partition=%d, disksize = %d, blksize=%d\n",
+ part,cd->disksize,cd->blksize,0);
+
+ if (part == RAW_PART ||
+ (part < cd->dlabel.d_npartitions &&
+ cd->dlabel.d_partitions[part].p_fstype != FS_UNUSED)) {
+ cd->partflags[part] |= MCDOPEN;
+ cd->openflags |= (1<<part);
+ if (part == RAW_PART && phys != 0)
+ cd->partflags[part] |= MCDREADRAW;
+ return 0;
+ }
+
+ return ENXIO;
+}
+
+int mcdclose(dev_t dev)
+{
+ int unit,part,phys;
+ struct mcd_data *cd;
+
+ unit = mcd_unit(dev);
+ if (unit >= NMCD)
+ return ENXIO;
+
+ cd = mcd_data + unit;
+ part = mcd_part(dev);
+ phys = mcd_phys(dev);
+
+ if (!(cd->flags & MCDINIT))
+ return ENXIO;
+
+ mcd_getstat(unit,1); /* get status */
+
+ /* close channel */
+ cd->partflags[part] &= ~(MCDOPEN|MCDREADRAW);
+ cd->openflags &= ~(1<<part);
+ MCD_TRACE("close: partition=%d\n",part,0,0,0);
+
+ return 0;
+}
+
+void
+mcdstrategy(struct buf *bp)
+{
+ struct mcd_data *cd;
+ struct buf *qp;
+ int s;
+
+ int unit = mcd_unit(bp->b_dev);
+
+ cd = mcd_data + unit;
+
+ /* test validity */
+/*MCD_TRACE("strategy: buf=0x%lx, unit=%ld, block#=%ld bcount=%ld\n",
+ bp,unit,bp->b_blkno,bp->b_bcount);*/
+ if (unit >= NMCD || bp->b_blkno < 0) {
+ printf("mcdstrategy: unit = %d, blkno = %d, bcount = %d\n",
+ unit, bp->b_blkno, bp->b_bcount);
+ pg("mcd: mcdstratregy failure");
+ bp->b_error = EINVAL;
+ bp->b_flags |= B_ERROR;
+ goto bad;
+ }
+
+ /* if device invalidated (e.g. media change, door open), error */
+ if (!(cd->flags & MCDVALID)) {
+MCD_TRACE("strategy: drive not valid\n",0,0,0,0);
+ bp->b_error = EIO;
+ goto bad;
+ }
+
+ /* read only */
+ if (!(bp->b_flags & B_READ)) {
+ bp->b_error = EROFS;
+ goto bad;
+ }
+
+ /* no data to read */
+ if (bp->b_bcount == 0)
+ goto done;
+
+ /* for non raw access, check partition limits */
+ if (mcd_part(bp->b_dev) != RAW_PART) {
+ if (!(cd->flags & MCDLABEL)) {
+ bp->b_error = EIO;
+ goto bad;
+ }
+ /* adjust transfer if necessary */
+ if (bounds_check_with_label(bp,&cd->dlabel,1) <= 0) {
+ goto done;
+ }
+ } else {
+ bp->b_pblkno = bp->b_blkno;
+ bp->b_resid = 0;
+ }
+
+ /* queue it */
+ qp = &cd->head;
+ s = splbio();
+ disksort(qp,bp);
+ splx(s);
+
+ /* now check whether we can perform processing */
+ mcd_start(unit);
+ return;
+
+bad:
+ bp->b_flags |= B_ERROR;
+done:
+ bp->b_resid = bp->b_bcount;
+ biodone(bp);
+ return;
+}
+
+static void mcd_start(int unit)
+{
+ struct mcd_data *cd = mcd_data + unit;
+ struct buf *bp, *qp = &cd->head;
+ struct partition *p;
+ int part;
+ register s = splbio();
+
+ if (cd->flags & MCDMBXBSY)
+ return;
+
+ if ((bp = qp->b_actf) != 0) {
+ /* block found to process, dequeue */
+ /*MCD_TRACE("mcd_start: found block bp=0x%x\n",bp,0,0,0);*/
+ qp->b_actf = bp->b_actf;
+ splx(s);
+ } else {
+ /* nothing to do */
+ splx(s);
+ return;
+ }
+
+ /* changed media? */
+ if (!(cd->flags & MCDVALID)) {
+ MCD_TRACE("mcd_start: drive not valid\n",0,0,0,0);
+ return;
+ }
+
+ p = cd->dlabel.d_partitions + mcd_part(bp->b_dev);
+
+ cd->flags |= MCDMBXBSY;
+ cd->mbx.unit = unit;
+ cd->mbx.port = cd->iobase;
+ cd->mbx.retry = MCD_RETRYS;
+ cd->mbx.bp = bp;
+ cd->mbx.p_offset = p->p_offset;
+
+ /* calling the read routine */
+ mcd_doread(MCD_S_BEGIN,&(cd->mbx));
+ /* triggers mcd_start, when successful finished */
+ return;
+}
+
+int mcdioctl(dev_t dev, int cmd, caddr_t addr, int flags)
+{
+ struct mcd_data *cd;
+ int unit,part;
+
+ unit = mcd_unit(dev);
+ part = mcd_part(dev);
+ cd = mcd_data + unit;
+
+#ifdef MCDMINI
+ 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:
+ 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:
+ 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);
+ if (status != MCDCDABSENT && status != MCDCDPRESENT &&
+ status != MCDSOPEN && status != MCDSCLOSED)
+ 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+=MIN_DELAY) {
+ if ((inb(port+mcd_xfer) & MCD_ST_BUSY)==0)
+ return 0;
+ DELAY(MIN_DELAY);
+ }
+ 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;
+
+#ifdef DEBUG
+ printf("mcd%d: setting mode to %d\n", unit, mode);
+#endif
+ 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;
+ }
+
+#ifdef DEBUG
+ printf("mcd%d: reading toc header\n", unit);
+#endif
+ if (mcd_toc_header(unit, &th) != 0) {
+ return ENXIO;
+ }
+
+#ifdef DEBUG
+ printf("mcd%d: stopping play\n", unit);
+#endif
+ 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;
+ }
+
+#ifdef DEBUG
+ printf("mcd%d: get_toc reading qchannel info\n",unit);
+#endif
+ 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;
+ }
+#ifdef DEBUG
+ 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]);
+ }
+#endif
+ 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;
+
+#ifdef DEBUG
+ printf("mcd%d: subchan af=%d, df=%d\n", unit,
+ sc->address_format,
+ sc->data_format);
+#endif
+ 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;
+ }
+#ifdef DEBUG
+ printf("mcd%d: playtracks from %d:%d to %d:%d\n", unit,
+ a, pt->start_index, z, pt->end_index);
+#endif
+
+ 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;
+ }
+ }
+
+#ifdef DEBUG
+ if (cd->debug) {
+ printf("mcd%d: mcd_play retry=%d, status=%d\n", unit, retry, st);
+ }
+#endif
+ 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) {
+#ifdef DEBUG
+ printf("mcd%d: pause attempted when not playing\n", unit);
+#endif
+ 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 */
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