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NetBSD/sys/dev/isa/mcd.c

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/* $NetBSD: mcd.c,v 1.109 2009/05/12 09:10:15 cegger Exp $ */
/*
* Copyright (c) 1993, 1994, 1995 Charles M. Hannum. 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 product includes software developed by Charles M. Hannum.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* Copyright 1993 by Holger Veit (data part)
* Copyright 1993 by Brian Moore (audio part)
* 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.
*/
/*static char COPYRIGHT[] = "mcd-driver (C)1993 by H.Veit & B.Moore";*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: mcd.c,v 1.109 2009/05/12 09:10:15 cegger Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/callout.h>
#include <sys/kernel.h>
#include <sys/proc.h>
#include <sys/conf.h>
#include <sys/file.h>
#include <sys/buf.h>
#include <sys/bufq.h>
#include <sys/stat.h>
#include <sys/uio.h>
#include <sys/ioctl.h>
#include <sys/cdio.h>
#include <sys/errno.h>
#include <sys/disklabel.h>
#include <sys/device.h>
#include <sys/disk.h>
#include <sys/mutex.h>
#include <sys/cpu.h>
#include <sys/intr.h>
#include <sys/bus.h>
#include <dev/isa/isavar.h>
#include <dev/isa/mcdreg.h>
#ifndef MCDDEBUG
#define MCD_TRACE(fmt,...)
#else
#define MCD_TRACE(fmt,...) {if (sc->debug) {printf("%s: st=%02x: ", device_xname(&sc->sc_dev), sc->status); printf(fmt,__VA_ARGS__);}}
#endif
#define MCDPART(dev) DISKPART(dev)
#define MCDUNIT(dev) DISKUNIT(dev)
/* toc */
#define MCD_MAXTOCS 104 /* from the Linux driver */
/* control promiscuous match */
#include "opt_mcd_promisc.h"
#ifdef MCD_PROMISC
int mcd_promisc = 1;
#else
int mcd_promisc = 0;
#endif
struct mcd_mbx {
int retry, count;
struct buf *bp;
daddr_t blkno;
int nblk;
int sz;
u_long skip;
int state;
#define MCD_S_IDLE 0
#define MCD_S_BEGIN 1
#define MCD_S_WAITMODE 2
#define MCD_S_WAITREAD 3
int mode;
};
struct mcd_softc {
struct device sc_dev;
struct disk sc_dk;
kmutex_t sc_lock;
void *sc_ih;
callout_t sc_pintr_ch;
bus_space_tag_t sc_iot;
bus_space_handle_t sc_ioh;
int irq, drq;
const char *type;
int flags;
#define MCDF_WLABEL 0x04 /* label is writable */
#define MCDF_LABELLING 0x08 /* writing label */
#define MCDF_LOADED 0x10 /* parameters loaded */
short status;
short audio_status;
int blksize;
u_long disksize;
struct mcd_volinfo volinfo;
union mcd_qchninfo toc[MCD_MAXTOCS];
struct mcd_command lastpb;
struct mcd_mbx mbx;
int lastmode;
#define MCD_MD_UNKNOWN -1
int lastupc;
#define MCD_UPC_UNKNOWN -1
struct bufq_state *buf_queue;
int active;
u_char readcmd;
u_char debug;
u_char probe;
};
static int bcd2bin(bcd_t);
static bcd_t bin2bcd(int);
static void hsg2msf(int, bcd_t *);
static daddr_t msf2hsg(bcd_t *, int);
int mcd_playtracks(struct mcd_softc *, struct ioc_play_track *);
int mcd_playmsf(struct mcd_softc *, struct ioc_play_msf *);
int mcd_playblocks(struct mcd_softc *, struct ioc_play_blocks *);
int mcd_stop(struct mcd_softc *);
int mcd_eject(struct mcd_softc *);
int mcd_read_subchannel(struct mcd_softc *, struct ioc_read_subchannel *,
struct cd_sub_channel_info *);
int mcd_pause(struct mcd_softc *);
int mcd_resume(struct mcd_softc *);
int mcd_toc_header(struct mcd_softc *, struct ioc_toc_header *);
int mcd_toc_entries(struct mcd_softc *, struct ioc_read_toc_entry *,
struct cd_toc_entry *, int *);
int mcd_getreply(struct mcd_softc *);
int mcd_getstat(struct mcd_softc *);
int mcd_getresult(struct mcd_softc *, struct mcd_result *);
void mcd_setflags(struct mcd_softc *);
int mcd_get(struct mcd_softc *, char *, int);
int mcd_send(struct mcd_softc *, struct mcd_mbox *, int);
int mcdintr(void *);
void mcd_soft_reset(struct mcd_softc *);
int mcd_hard_reset(struct mcd_softc *);
int mcd_setmode(struct mcd_softc *, int);
int mcd_setupc(struct mcd_softc *, int);
int mcd_read_toc(struct mcd_softc *);
int mcd_getqchan(struct mcd_softc *, union mcd_qchninfo *, int);
int mcd_setlock(struct mcd_softc *, int);
int mcd_find(bus_space_tag_t, bus_space_handle_t, struct mcd_softc *);
int mcdprobe(device_t, cfdata_t, void *);
void mcdattach(device_t, device_t, void *);
CFATTACH_DECL(mcd, sizeof(struct mcd_softc),
mcdprobe, mcdattach, NULL, NULL);
extern struct cfdriver mcd_cd;
dev_type_open(mcdopen);
dev_type_close(mcdclose);
dev_type_read(mcdread);
dev_type_write(mcdwrite);
dev_type_ioctl(mcdioctl);
dev_type_strategy(mcdstrategy);
dev_type_dump(mcddump);
dev_type_size(mcdsize);
const struct bdevsw mcd_bdevsw = {
mcdopen, mcdclose, mcdstrategy, mcdioctl, mcddump, mcdsize, D_DISK
};
const struct cdevsw mcd_cdevsw = {
mcdopen, mcdclose, mcdread, mcdwrite, mcdioctl,
nostop, notty, nopoll, nommap, nokqfilter, D_DISK
};
void mcdgetdefaultlabel(struct mcd_softc *, struct disklabel *);
void mcdgetdisklabel(struct mcd_softc *);
int mcd_get_parms(struct mcd_softc *);
void mcdstart(struct mcd_softc *);
void mcd_pseudointr(void *);
struct dkdriver mcddkdriver = { mcdstrategy, NULL, };
#define MCD_RETRIES 3
#define MCD_RDRETRIES 3
/* several delays */
#define RDELAY_WAITMODE 300
#define RDELAY_WAITREAD 800
#define DELAY_GRANULARITY 25 /* 25us */
#define DELAY_GETREPLY 100000 /* 100000 * 25us */
void
mcdattach(device_t parent, device_t self, void *aux)
{
struct mcd_softc *sc = (void *)self;
struct isa_attach_args *ia = aux;
bus_space_tag_t iot = ia->ia_iot;
bus_space_handle_t ioh;
struct mcd_mbox mbx;
/* Map i/o space */
if (bus_space_map(iot, ia->ia_io[0].ir_addr, MCD_NPORT, 0, &ioh)) {
printf(": can't map i/o space\n");
return;
}
mutex_init(&sc->sc_lock, MUTEX_DEFAULT, IPL_NONE);
sc->sc_iot = iot;
sc->sc_ioh = ioh;
sc->probe = 0;
sc->debug = 0;
if (!mcd_find(iot, ioh, sc)) {
printf(": mcd_find failed\n");
return;
}
bufq_alloc(&sc->buf_queue, "disksort", BUFQ_SORT_RAWBLOCK);
callout_init(&sc->sc_pintr_ch, 0);
/*
* Initialize and attach the disk structure.
*/
disk_init(&sc->sc_dk, device_xname(&sc->sc_dev), &mcddkdriver);
disk_attach(&sc->sc_dk);
printf(": model %s\n", sc->type != 0 ? sc->type : "unknown");
(void) mcd_setlock(sc, MCD_LK_UNLOCK);
mbx.cmd.opcode = MCD_CMDCONFIGDRIVE;
mbx.cmd.length = sizeof(mbx.cmd.data.config) - 1;
mbx.cmd.data.config.subcommand = MCD_CF_IRQENABLE;
mbx.cmd.data.config.data1 = 0x01;
mbx.res.length = 0;
(void) mcd_send(sc, &mbx, 0);
mcd_soft_reset(sc);
sc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq[0].ir_irq,
IST_EDGE, IPL_BIO, mcdintr, sc);
}
int
mcdopen(dev_t dev, int flag, int fmt, struct lwp *l)
{
int error, part;
struct mcd_softc *sc;
sc = device_lookup_private(&mcd_cd, MCDUNIT(dev));
if (sc == NULL)
return ENXIO;
mutex_enter(&sc->sc_lock);
if (sc->sc_dk.dk_openmask != 0) {
/*
* If any partition is open, but the disk has been invalidated,
* disallow further opens.
*/
if ((sc->flags & MCDF_LOADED) == 0) {
error = EIO;
goto bad3;
}
} else {
/*
* Lock the drawer. This will also notice any pending disk
* change or door open indicator and clear the MCDF_LOADED bit
* if necessary.
*/
(void) mcd_setlock(sc, MCD_LK_LOCK);
if ((sc->flags & MCDF_LOADED) == 0) {
/* Partially reset the state. */
sc->lastmode = MCD_MD_UNKNOWN;
sc->lastupc = MCD_UPC_UNKNOWN;
sc->flags |= MCDF_LOADED;
/* Set the mode, causing the disk to spin up. */
if ((error = mcd_setmode(sc, MCD_MD_COOKED)) != 0)
goto bad2;
/* Load the physical device parameters. */
if (mcd_get_parms(sc) != 0) {
error = ENXIO;
goto bad2;
}
/* Read the table of contents. */
if ((error = mcd_read_toc(sc)) != 0)
goto bad2;
/* Fabricate a disk label. */
mcdgetdisklabel(sc);
}
}
part = MCDPART(dev);
MCD_TRACE("open: partition=%d disksize=%ld blksize=%d\n", part,
sc->disksize, sc->blksize);
/* Check that the partition exists. */
if (part != RAW_PART &&
(part >= sc->sc_dk.dk_label->d_npartitions ||
sc->sc_dk.dk_label->d_partitions[part].p_fstype == FS_UNUSED)) {
error = ENXIO;
goto bad;
}
/* Insure only one open at a time. */
switch (fmt) {
case S_IFCHR:
sc->sc_dk.dk_copenmask |= (1 << part);
break;
case S_IFBLK:
sc->sc_dk.dk_bopenmask |= (1 << part);
break;
}
sc->sc_dk.dk_openmask = sc->sc_dk.dk_copenmask | sc->sc_dk.dk_bopenmask;
mutex_exit(&sc->sc_lock);
return 0;
bad2:
sc->flags &= ~MCDF_LOADED;
bad:
if (sc->sc_dk.dk_openmask == 0) {
#if 0
(void) mcd_setmode(sc, MCD_MD_SLEEP);
#endif
(void) mcd_setlock(sc, MCD_LK_UNLOCK);
}
bad3:
mutex_exit(&sc->sc_lock);
return error;
}
int
mcdclose(dev_t dev, int flag, int fmt, struct lwp *l)
{
struct mcd_softc *sc = device_lookup_private(&mcd_cd, MCDUNIT(dev));
int part = MCDPART(dev);
MCD_TRACE("close: partition=%d\n", part);
mutex_enter(&sc->sc_lock);
switch (fmt) {
case S_IFCHR:
sc->sc_dk.dk_copenmask &= ~(1 << part);
break;
case S_IFBLK:
sc->sc_dk.dk_bopenmask &= ~(1 << part);
break;
}
sc->sc_dk.dk_openmask = sc->sc_dk.dk_copenmask | sc->sc_dk.dk_bopenmask;
if (sc->sc_dk.dk_openmask == 0) {
/* XXXX Must wait for I/O to complete! */
#if 0
(void) mcd_setmode(sc, MCD_MD_SLEEP);
#endif
(void) mcd_setlock(sc, MCD_LK_UNLOCK);
}
mutex_exit(&sc->sc_lock);
return 0;
}
void
mcdstrategy(struct buf *bp)
{
struct mcd_softc *sc;
struct disklabel *lp;
daddr_t blkno;
int s;
sc = device_lookup_private(&mcd_cd, MCDUNIT(bp->b_dev));
lp = sc->sc_dk.dk_label;
/* Test validity. */
MCD_TRACE("strategy: buf=0x%p blkno=%d bcount=%d\n", bp,
(int) bp->b_blkno, bp->b_bcount);
if (bp->b_blkno < 0 ||
(bp->b_bcount % sc->blksize) != 0) {
printf("%s: strategy: blkno = %" PRId64 " bcount = %d\n",
device_xname(&sc->sc_dev), bp->b_blkno, bp->b_bcount);
bp->b_error = EINVAL;
goto done;
}
/* If device invalidated (e.g. media change, door open), error. */
if ((sc->flags & MCDF_LOADED) == 0) {
MCD_TRACE("strategy: drive not valid%s", "\n");
bp->b_error = EIO;
goto done;
}
/* No data to read. */
if (bp->b_bcount == 0)
goto done;
/*
* Do bounds checking, adjust transfer. if error, process.
* If end of partition, just return.
*/
if (MCDPART(bp->b_dev) != RAW_PART &&
bounds_check_with_label(&sc->sc_dk, bp,
(sc->flags & (MCDF_WLABEL|MCDF_LABELLING)) != 0) <= 0)
goto done;
/*
* Now convert the block number to absolute and put it in
* terms of the device's logical block size.
*/
blkno = bp->b_blkno / (lp->d_secsize / DEV_BSIZE);
if (MCDPART(bp->b_dev) != RAW_PART)
blkno += lp->d_partitions[MCDPART(bp->b_dev)].p_offset;
bp->b_rawblkno = blkno;
/* Queue it. */
s = splbio();
bufq_put(sc->buf_queue, bp);
splx(s);
if (!sc->active)
mcdstart(sc);
return;
done:
bp->b_resid = bp->b_bcount;
biodone(bp);
}
void
mcdstart(struct mcd_softc *sc)
{
struct buf *bp;
int s;
loop:
s = splbio();
if ((bp = bufq_get(sc->buf_queue)) == NULL) {
/* Nothing to do. */
sc->active = 0;
splx(s);
return;
}
/* Block found to process. */
MCD_TRACE("start: found block bp=0x%p\n", bp);
splx(s);
/* Changed media? */
if ((sc->flags & MCDF_LOADED) == 0) {
MCD_TRACE("start: drive not valid%s", "\n");
bp->b_error = EIO;
biodone(bp);
goto loop;
}
sc->active = 1;
/* Instrumentation. */
s = splbio();
disk_busy(&sc->sc_dk);
splx(s);
sc->mbx.retry = MCD_RDRETRIES;
sc->mbx.bp = bp;
sc->mbx.blkno = bp->b_rawblkno;
sc->mbx.nblk = bp->b_bcount / sc->blksize;
sc->mbx.sz = sc->blksize;
sc->mbx.skip = 0;
sc->mbx.state = MCD_S_BEGIN;
sc->mbx.mode = MCD_MD_COOKED;
s = splbio();
(void) mcdintr(sc);
splx(s);
}
int
mcdread(dev_t dev, struct uio *uio, int flags)
{
return (physio(mcdstrategy, NULL, dev, B_READ, minphys, uio));
}
int
mcdwrite(dev_t dev, struct uio *uio, int flags)
{
return (physio(mcdstrategy, NULL, dev, B_WRITE, minphys, uio));
}
int
mcdioctl(dev_t dev, u_long cmd, void *addr, int flag, struct lwp *l)
{
struct mcd_softc *sc = device_lookup_private(&mcd_cd, MCDUNIT(dev));
int error;
int part;
#ifdef __HAVE_OLD_DISKLABEL
struct disklabel newlabel;
#endif
MCD_TRACE("ioctl: cmd=0x%lx\n", cmd);
if ((sc->flags & MCDF_LOADED) == 0)
return EIO;
part = MCDPART(dev);
switch (cmd) {
case DIOCGDINFO:
*(struct disklabel *)addr = *(sc->sc_dk.dk_label);
return 0;
#ifdef __HAVE_OLD_DISKLABEL
case ODIOCGDINFO:
newlabel = *(sc->sc_dk.dk_label);
if (newlabel.d_npartitions > OLDMAXPARTITIONS)
return ENOTTY;
memcpy(addr, &newlabel, sizeof (struct olddisklabel));
return 0;
#endif
case DIOCGPART:
((struct partinfo *)addr)->disklab = sc->sc_dk.dk_label;
((struct partinfo *)addr)->part =
&sc->sc_dk.dk_label->d_partitions[part];
return 0;
case DIOCWDINFO:
case DIOCSDINFO:
#ifdef __HAVE_OLD_DISKLABEL
case ODIOCWDINFO:
case ODIOCSDINFO:
#endif
{
struct disklabel *lp;
if ((flag & FWRITE) == 0)
return EBADF;
#ifdef __HAVE_OLD_DISKLABEL
if (cmd == ODIOCSDINFO || cmd == ODIOCWDINFO) {
memset(&newlabel, 0, sizeof newlabel);
memcpy(&newlabel, addr, sizeof (struct olddisklabel));
lp = &newlabel;
} else
#endif
lp = addr;
mutex_enter(&sc->sc_lock);
sc->flags |= MCDF_LABELLING;
error = setdisklabel(sc->sc_dk.dk_label,
lp, /*sc->sc_dk.dk_openmask : */0,
sc->sc_dk.dk_cpulabel);
if (error == 0) {
}
sc->flags &= ~MCDF_LABELLING;
mutex_exit(&sc->sc_lock);
return error;
}
case DIOCWLABEL:
return EBADF;
case DIOCGDEFLABEL:
mcdgetdefaultlabel(sc, addr);
return 0;
#ifdef __HAVE_OLD_DISKLABEL
case ODIOCGDEFLABEL:
mcdgetdefaultlabel(sc, &newlabel);
if (newlabel.d_npartitions > OLDMAXPARTITIONS)
return ENOTTY;
memcpy(addr, &newlabel, sizeof (struct olddisklabel));
return 0;
#endif
case CDIOCPLAYTRACKS:
return mcd_playtracks(sc, addr);
case CDIOCPLAYMSF:
return mcd_playmsf(sc, addr);
case CDIOCPLAYBLOCKS:
return mcd_playblocks(sc, addr);
case CDIOCREADSUBCHANNEL: {
struct cd_sub_channel_info info;
error = mcd_read_subchannel(sc, addr, &info);
if (error != 0) {
struct ioc_read_subchannel *ch = addr;
error = copyout(&info, ch->data, ch->data_len);
}
return error;
}
case CDIOCREADSUBCHANNEL_BUF:
return mcd_read_subchannel(sc, addr,
&((struct ioc_read_subchannel_buf *)addr)->info);
case CDIOREADTOCHEADER:
return mcd_toc_header(sc, addr);
case CDIOREADTOCENTRYS: {
struct cd_toc_entry entries[MCD_MAXTOCS];
struct ioc_read_toc_entry *te = addr;
int count;
if (te->data_len > sizeof entries)
return EINVAL;
error = mcd_toc_entries(sc, te, entries, &count);
if (error == 0)
/* Copy the data back. */
error = copyout(entries, te->data, min(te->data_len,
count * sizeof(struct cd_toc_entry)));
return error;
}
case CDIOREADTOCENTRIES_BUF: {
struct ioc_read_toc_entry_buf *te = addr;
int count;
if (te->req.data_len > sizeof te->entry)
return EINVAL;
return mcd_toc_entries(sc, &te->req, te->entry, &count);
}
case CDIOCSETPATCH:
case CDIOCGETVOL:
case CDIOCSETVOL:
case CDIOCSETMONO:
case CDIOCSETSTEREO:
case CDIOCSETMUTE:
case CDIOCSETLEFT:
case CDIOCSETRIGHT:
return EINVAL;
case CDIOCRESUME:
return mcd_resume(sc);
case CDIOCPAUSE:
return mcd_pause(sc);
case CDIOCSTART:
return EINVAL;
case CDIOCSTOP:
return mcd_stop(sc);
case DIOCEJECT:
if (*(int *)addr == 0) {
/*
* Don't force eject: check that we are the only
* partition open. If so, unlock it.
*/
if ((sc->sc_dk.dk_openmask & ~(1 << part)) == 0 &&
sc->sc_dk.dk_bopenmask + sc->sc_dk.dk_copenmask ==
sc->sc_dk.dk_openmask) {
error = mcd_setlock(sc, MCD_LK_UNLOCK);
if (error)
return (error);
} else {
return (EBUSY);
}
}
/* FALLTHROUGH */
case CDIOCEJECT: /* FALLTHROUGH */
case ODIOCEJECT:
return mcd_eject(sc);
case CDIOCALLOW:
return mcd_setlock(sc, MCD_LK_UNLOCK);
case CDIOCPREVENT:
return mcd_setlock(sc, MCD_LK_LOCK);
case DIOCLOCK:
return mcd_setlock(sc,
(*(int *)addr) ? MCD_LK_LOCK : MCD_LK_UNLOCK);
case CDIOCSETDEBUG:
sc->debug = 1;
return 0;
case CDIOCCLRDEBUG:
sc->debug = 0;
return 0;
case CDIOCRESET:
return mcd_hard_reset(sc);
default:
return ENOTTY;
}
#ifdef DIAGNOSTIC
panic("mcdioctl: impossible");
#endif
}
void
mcdgetdefaultlabel(struct mcd_softc *sc, struct disklabel *lp)
{
memset(lp, 0, sizeof(struct disklabel));
lp->d_secsize = sc->blksize;
lp->d_ntracks = 1;
lp->d_nsectors = 100;
lp->d_ncylinders = (sc->disksize / 100) + 1;
lp->d_secpercyl = lp->d_ntracks * lp->d_nsectors;
strncpy(lp->d_typename, "Mitsumi CD-ROM", 16);
lp->d_type = 0; /* XXX */
strncpy(lp->d_packname, "fictitious", 16);
lp->d_secperunit = sc->disksize;
lp->d_rpm = 300;
lp->d_interleave = 1;
lp->d_flags = D_REMOVABLE;
lp->d_partitions[0].p_offset = 0;
lp->d_partitions[0].p_size =
lp->d_secperunit * (lp->d_secsize / DEV_BSIZE);
lp->d_partitions[0].p_fstype = FS_ISO9660;
lp->d_partitions[RAW_PART].p_offset = 0;
lp->d_partitions[RAW_PART].p_size =
lp->d_secperunit * (lp->d_secsize / DEV_BSIZE);
lp->d_partitions[RAW_PART].p_fstype = FS_ISO9660;
lp->d_npartitions = RAW_PART + 1;
lp->d_magic = DISKMAGIC;
lp->d_magic2 = DISKMAGIC;
lp->d_checksum = dkcksum(lp);
}
/*
* This could have been taken from scsi/cd.c, but it is not clear
* whether the scsi cd driver is linked in.
*/
void
mcdgetdisklabel(struct mcd_softc *sc)
{
struct disklabel *lp = sc->sc_dk.dk_label;
memset(sc->sc_dk.dk_cpulabel, 0, sizeof(struct cpu_disklabel));
mcdgetdefaultlabel(sc, lp);
}
int
mcd_get_parms(struct mcd_softc *sc)
{
struct mcd_mbox mbx;
daddr_t size;
int error;
/* Send volume info command. */
mbx.cmd.opcode = MCD_CMDGETVOLINFO;
mbx.cmd.length = 0;
mbx.res.length = sizeof(mbx.res.data.volinfo);
if ((error = mcd_send(sc, &mbx, 1)) != 0)
return error;
if (mbx.res.data.volinfo.trk_low == 0x00 &&
mbx.res.data.volinfo.trk_high == 0x00)
return EINVAL;
/* Volinfo is OK. */
sc->volinfo = mbx.res.data.volinfo;
sc->blksize = MCD_BLKSIZE_COOKED;
size = msf2hsg(sc->volinfo.vol_msf, 0);
sc->disksize = size * (MCD_BLKSIZE_COOKED / DEV_BSIZE);
return 0;
}
int
mcdsize(dev_t dev)
{
/* CD-ROMs are read-only. */
return -1;
}
int
mcddump(dev_t dev, daddr_t blkno, void *va,
size_t size)
{
/* Not implemented. */
return ENXIO;
}
/*
* Find the board and fill in the softc.
*/
int
mcd_find(bus_space_tag_t iot, bus_space_handle_t ioh, struct mcd_softc *sc)
{
int i;
struct mcd_mbox mbx;
sc->sc_iot = iot;
sc->sc_ioh = ioh;
/* Send a reset. */
bus_space_write_1(iot, ioh, MCD_RESET, 0);
delay(1000000);
/* Get any pending status and throw away. */
for (i = 10; i; i--)
bus_space_read_1(iot, ioh, MCD_STATUS);
delay(1000);
/* Send get status command. */
mbx.cmd.opcode = MCD_CMDGETSTAT;
mbx.cmd.length = 0;
mbx.res.length = 0;
if (mcd_send(sc, &mbx, 0) != 0)
return 0;
/* Get info about the drive. */
mbx.cmd.opcode = MCD_CMDCONTINFO;
mbx.cmd.length = 0;
mbx.res.length = sizeof(mbx.res.data.continfo);
if (mcd_send(sc, &mbx, 0) != 0)
return 0;
/*
* The following is code which is not guaranteed to work for all
* drives, because the meaning of the expected 'M' is not clear
* (M_itsumi is an obvious assumption, but I don't trust that).
* Also, the original hack had a bogus condition that always
* returned true.
*
* Note: Which models support interrupts? >=LU005S?
*/
sc->readcmd = MCD_CMDREADSINGLESPEED;
switch (mbx.res.data.continfo.code) {
case 'M':
if (mbx.res.data.continfo.version <= 2)
sc->type = "LU002S";
else if (mbx.res.data.continfo.version <= 5)
sc->type = "LU005S";
else
sc->type = "LU006S";
break;
case 'F':
sc->type = "FX001";
break;
case 'D':
sc->type = "FX001D";
sc->readcmd = MCD_CMDREADDOUBLESPEED;
break;
default:
/*
* mcd_send() says the response looked OK but the
* drive type is unknown. If mcd_promisc, match anyway.
*/
if (mcd_promisc != 0)
return 0;
#ifdef MCDDEBUG
printf("%s: unrecognized drive version %c%02x; will try to use it anyway\n",
device_xname(&sc->sc_dev),
mbx.res.data.continfo.code, mbx.res.data.continfo.version);
#endif
sc->type = 0;
break;
}
return 1;
}
int
mcdprobe(device_t parent, cfdata_t match, void *aux)
{
struct isa_attach_args *ia = aux;
struct mcd_softc sc;
bus_space_tag_t iot = ia->ia_iot;
bus_space_handle_t ioh;
int rv;
if (ia->ia_nio < 1)
return (0);
if (ia->ia_nirq < 1)
return (0);
if (ISA_DIRECT_CONFIG(ia))
return (0);
/* Disallow wildcarded i/o address. */
if (ia->ia_io[0].ir_addr == ISA_UNKNOWN_PORT)
return (0);
if (ia->ia_irq[0].ir_irq == ISA_UNKNOWN_IRQ)
return (0);
/* Map i/o space */
if (bus_space_map(iot, ia->ia_io[0].ir_addr, MCD_NPORT, 0, &ioh))
return 0;
sc.debug = 0;
sc.probe = 1;
rv = mcd_find(iot, ioh, &sc);
bus_space_unmap(iot, ioh, MCD_NPORT);
if (rv) {
ia->ia_nio = 1;
ia->ia_io[0].ir_size = MCD_NPORT;
ia->ia_nirq = 1;
ia->ia_niomem = 0;
ia->ia_ndrq = 0;
}
return (rv);
}
int
mcd_getreply(struct mcd_softc *sc)
{
bus_space_tag_t iot = sc->sc_iot;
bus_space_handle_t ioh = sc->sc_ioh;
int i;
/* Wait until xfer port senses data ready. */
for (i = DELAY_GETREPLY; i; i--) {
if ((bus_space_read_1(iot, ioh, MCD_XFER) &
MCD_XF_STATUSUNAVAIL) == 0)
break;
delay(DELAY_GRANULARITY);
}
if (!i)
return -1;
/* Get the data. */
return bus_space_read_1(iot, ioh, MCD_STATUS);
}
int
mcd_getstat(struct mcd_softc *sc)
{
struct mcd_mbox mbx;
mbx.cmd.opcode = MCD_CMDGETSTAT;
mbx.cmd.length = 0;
mbx.res.length = 0;
return mcd_send(sc, &mbx, 1);
}
int
mcd_getresult(struct mcd_softc *sc, struct mcd_result *res)
{
int i, x;
if (sc->debug)
printf("%s: mcd_getresult: %d", device_xname(&sc->sc_dev),
res->length);
if ((x = mcd_getreply(sc)) < 0) {
if (sc->debug)
printf(" timeout\n");
else if (!sc->probe)
printf("%s: timeout in getresult\n", device_xname(&sc->sc_dev));
return EIO;
}
if (sc->debug)
printf(" %02x", (u_int)x);
sc->status = x;
mcd_setflags(sc);
if ((sc->status & MCD_ST_CMDCHECK) != 0)
return EINVAL;
for (i = 0; i < res->length; i++) {
if ((x = mcd_getreply(sc)) < 0) {
if (sc->debug)
printf(" timeout\n");
else
printf("%s: timeout in getresult\n", device_xname(&sc->sc_dev));
return EIO;
}
if (sc->debug)
printf(" %02x", (u_int)x);
res->data.raw.data[i] = x;
}
if (sc->debug)
printf(" succeeded\n");
#ifdef MCDDEBUG
delay(10);
while ((bus_space_read_1(sc->sc_iot, sc->sc_ioh, MCD_XFER) &
MCD_XF_STATUSUNAVAIL) == 0) {
x = bus_space_read_1(sc->sc_iot, sc->sc_ioh, MCD_STATUS);
printf("%s: got extra byte %02x during getstatus\n",
device_xname(&sc->sc_dev), (u_int)x);
delay(10);
}
#endif
return 0;
}
void
mcd_setflags(struct mcd_softc *sc)
{
/* Check flags. */
if ((sc->flags & MCDF_LOADED) != 0 &&
(sc->status & (MCD_ST_DSKCHNG | MCD_ST_DSKIN | MCD_ST_DOOROPEN)) !=
MCD_ST_DSKIN) {
if ((sc->status & MCD_ST_DOOROPEN) != 0)
printf("%s: door open\n", device_xname(&sc->sc_dev));
else if ((sc->status & MCD_ST_DSKIN) == 0)
printf("%s: no disk present\n", device_xname(&sc->sc_dev));
else if ((sc->status & MCD_ST_DSKCHNG) != 0)
printf("%s: media change\n", device_xname(&sc->sc_dev));
sc->flags &= ~MCDF_LOADED;
}
if ((sc->status & MCD_ST_AUDIOBSY) != 0)
sc->audio_status = CD_AS_PLAY_IN_PROGRESS;
else if (sc->audio_status == CD_AS_PLAY_IN_PROGRESS ||
sc->audio_status == CD_AS_AUDIO_INVALID)
sc->audio_status = CD_AS_PLAY_COMPLETED;
}
int
mcd_send(struct mcd_softc *sc, struct mcd_mbox *mbx, int diskin)
{
int retry, i, error;
bus_space_tag_t iot = sc->sc_iot;
bus_space_handle_t ioh = sc->sc_ioh;
if (sc->debug) {
printf("%s: mcd_send: %d %02x", device_xname(&sc->sc_dev),
mbx->cmd.length, (u_int)mbx->cmd.opcode);
for (i = 0; i < mbx->cmd.length; i++)
printf(" %02x", (u_int)mbx->cmd.data.raw.data[i]);
printf("\n");
}
for (retry = MCD_RETRIES; retry; retry--) {
bus_space_write_1(iot, ioh, MCD_COMMAND, mbx->cmd.opcode);
for (i = 0; i < mbx->cmd.length; i++)
bus_space_write_1(iot, ioh, MCD_COMMAND, mbx->cmd.data.raw.data[i]);
if ((error = mcd_getresult(sc, &mbx->res)) == 0)
break;
if (error == EINVAL)
return error;
}
if (!retry)
return error;
if (diskin && (sc->flags & MCDF_LOADED) == 0)
return EIO;
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;
F_msf(msf) = bin2bcd(hsg % 75);
hsg /= 75;
S_msf(msf) = bin2bcd(hsg % 60);
hsg /= 60;
M_msf(msf) = bin2bcd(hsg);
}
static daddr_t
msf2hsg(bcd_t *msf, int relative)
{
daddr_t blkno;
blkno = bcd2bin(M_msf(msf)) * 75 * 60 +
bcd2bin(S_msf(msf)) * 75 +
bcd2bin(F_msf(msf));
if (!relative)
blkno -= 150;
return blkno;
}
void
mcd_pseudointr(void *v)
{
struct mcd_softc *sc = v;
int s;
s = splbio();
(void) mcdintr(sc);
splx(s);
}
/*
* State machine to process read requests.
* Initialize with MCD_S_BEGIN: calculate sizes, and set mode
* MCD_S_WAITMODE: waits for status reply from set mode, set read command
* MCD_S_WAITREAD: wait for read ready, read data.
*/
int
mcdintr(void *arg)
{
struct mcd_softc *sc = arg;
struct mcd_mbx *mbx = &sc->mbx;
struct buf *bp = mbx->bp;
bus_space_tag_t iot = sc->sc_iot;
bus_space_handle_t ioh = sc->sc_ioh;
int i;
u_char x;
bcd_t msf[3];
switch (mbx->state) {
case MCD_S_IDLE:
return 0;
case MCD_S_BEGIN:
tryagain:
if (mbx->mode == sc->lastmode)
goto firstblock;
sc->lastmode = MCD_MD_UNKNOWN;
bus_space_write_1(iot, ioh, MCD_COMMAND, MCD_CMDSETMODE);
bus_space_write_1(iot, ioh, MCD_COMMAND, mbx->mode);
mbx->count = RDELAY_WAITMODE;
mbx->state = MCD_S_WAITMODE;
case MCD_S_WAITMODE:
callout_stop(&sc->sc_pintr_ch);
for (i = 20; i; i--) {
x = bus_space_read_1(iot, ioh, MCD_XFER);
if ((x & MCD_XF_STATUSUNAVAIL) == 0)
break;
delay(50);
}
if (i == 0)
goto hold;
sc->status = bus_space_read_1(iot, ioh, MCD_STATUS);
mcd_setflags(sc);
if ((sc->flags & MCDF_LOADED) == 0)
goto changed;
MCD_TRACE("doread: got WAITMODE delay=%d\n",
RDELAY_WAITMODE - mbx->count);
sc->lastmode = mbx->mode;
firstblock:
MCD_TRACE("doread: read blkno=%d for bp=0x%p\n",
(int) mbx->blkno, bp);
/* Build parameter block. */
hsg2msf(mbx->blkno, msf);
/* Send the read command. */
bus_space_write_1(iot, ioh, MCD_COMMAND, sc->readcmd);
bus_space_write_1(iot, ioh, MCD_COMMAND, msf[0]);
bus_space_write_1(iot, ioh, MCD_COMMAND, msf[1]);
bus_space_write_1(iot, ioh, MCD_COMMAND, msf[2]);
bus_space_write_1(iot, ioh, MCD_COMMAND, 0);
bus_space_write_1(iot, ioh, MCD_COMMAND, 0);
bus_space_write_1(iot, ioh, MCD_COMMAND, mbx->nblk);
mbx->count = RDELAY_WAITREAD;
mbx->state = MCD_S_WAITREAD;
case MCD_S_WAITREAD:
callout_stop(&sc->sc_pintr_ch);
nextblock:
loop:
for (i = 20; i; i--) {
x = bus_space_read_1(iot, ioh, MCD_XFER);
if ((x & MCD_XF_DATAUNAVAIL) == 0)
goto gotblock;
if ((x & MCD_XF_STATUSUNAVAIL) == 0)
break;
delay(50);
}
if (i == 0)
goto hold;
sc->status = bus_space_read_1(iot, ioh, MCD_STATUS);
mcd_setflags(sc);
if ((sc->flags & MCDF_LOADED) == 0)
goto changed;
#if 0
printf("%s: got status byte %02x during read\n",
device_xname(&sc->sc_dev), (u_int)sc->status);
#endif
goto loop;
gotblock:
MCD_TRACE("doread: got data delay=%d\n",
RDELAY_WAITREAD - mbx->count);
/* Data is ready. */
bus_space_write_1(iot, ioh, MCD_CTL2, 0x04); /* XXX */
bus_space_read_multi_1(iot, ioh, MCD_RDATA,
(char *)bp->b_data + mbx->skip, mbx->sz);
bus_space_write_1(iot, ioh, MCD_CTL2, 0x0c); /* XXX */
mbx->blkno += 1;
mbx->skip += mbx->sz;
if (--mbx->nblk > 0)
goto nextblock;
mbx->state = MCD_S_IDLE;
/* Return buffer. */
bp->b_resid = 0;
disk_unbusy(&sc->sc_dk, bp->b_bcount, (bp->b_flags & B_READ));
biodone(bp);
mcdstart(sc);
return 1;
hold:
if (mbx->count-- < 0) {
printf("%s: timeout in state %d",
device_xname(&sc->sc_dev), mbx->state);
goto readerr;
}
#if 0
printf("%s: sleep in state %d\n", device_xname(&sc->sc_dev),
mbx->state);
#endif
callout_reset(&sc->sc_pintr_ch, hz / 100,
mcd_pseudointr, sc);
return -1;
}
readerr:
if (mbx->retry-- > 0) {
printf("; retrying\n");
goto tryagain;
} else
printf("; giving up\n");
changed:
/* Invalidate the buffer. */
bp->b_error = EIO;
bp->b_resid = bp->b_bcount - mbx->skip;
disk_unbusy(&sc->sc_dk, (bp->b_bcount - bp->b_resid),
(bp->b_flags & B_READ));
biodone(bp);
mcdstart(sc);
return -1;
#ifdef notyet
printf("%s: unit timeout; resetting\n", device_xname(&sc->sc_dev));
bus_space_write_1(iot, ioh, MCD_RESET, MCD_CMDRESET);
delay(300000);
(void) mcd_getstat(sc, 1);
(void) mcd_getstat(sc, 1);
/*sc->status &= ~MCD_ST_DSKCHNG; */
sc->debug = 1; /* preventive set debug mode */
#endif
}
void
mcd_soft_reset(struct mcd_softc *sc)
{
sc->debug = 0;
sc->flags = 0;
sc->lastmode = MCD_MD_UNKNOWN;
sc->lastupc = MCD_UPC_UNKNOWN;
sc->audio_status = CD_AS_AUDIO_INVALID;
bus_space_write_1(sc->sc_iot, sc->sc_ioh, MCD_CTL2, 0x0c); /* XXX */
}
int
mcd_hard_reset(struct mcd_softc *sc)
{
struct mcd_mbox mbx;
mcd_soft_reset(sc);
mbx.cmd.opcode = MCD_CMDRESET;
mbx.cmd.length = 0;
mbx.res.length = 0;
return mcd_send(sc, &mbx, 0);
}
int
mcd_setmode(struct mcd_softc *sc, int mode)
{
struct mcd_mbox mbx;
int error;
if (sc->lastmode == mode)
return 0;
if (sc->debug)
printf("%s: setting mode to %d\n", device_xname(&sc->sc_dev), mode);
sc->lastmode = MCD_MD_UNKNOWN;
mbx.cmd.opcode = MCD_CMDSETMODE;
mbx.cmd.length = sizeof(mbx.cmd.data.datamode);
mbx.cmd.data.datamode.mode = mode;
mbx.res.length = 0;
if ((error = mcd_send(sc, &mbx, 1)) != 0)
return error;
sc->lastmode = mode;
return 0;
}
int
mcd_setupc(struct mcd_softc *sc, int upc)
{
struct mcd_mbox mbx;
int error;
if (sc->lastupc == upc)
return 0;
if (sc->debug)
printf("%s: setting upc to %d\n", device_xname(&sc->sc_dev), upc);
sc->lastupc = MCD_UPC_UNKNOWN;
mbx.cmd.opcode = MCD_CMDCONFIGDRIVE;
mbx.cmd.length = sizeof(mbx.cmd.data.config) - 1;
mbx.cmd.data.config.subcommand = MCD_CF_READUPC;
mbx.cmd.data.config.data1 = upc;
mbx.res.length = 0;
if ((error = mcd_send(sc, &mbx, 1)) != 0)
return error;
sc->lastupc = upc;
return 0;
}
int
mcd_toc_header(struct mcd_softc *sc, struct ioc_toc_header *th)
{
if (sc->debug)
printf("%s: mcd_toc_header: reading toc header\n",
device_xname(&sc->sc_dev));
th->len = msf2hsg(sc->volinfo.vol_msf, 0);
th->starting_track = bcd2bin(sc->volinfo.trk_low);
th->ending_track = bcd2bin(sc->volinfo.trk_high);
return 0;
}
int
mcd_read_toc(struct mcd_softc *sc)
{
struct ioc_toc_header th;
union mcd_qchninfo q;
int error, trk, idx, retry;
if ((error = mcd_toc_header(sc, &th)) != 0)
return error;
if ((error = mcd_stop(sc)) != 0)
return error;
if (sc->debug)
printf("%s: read_toc: reading qchannel info\n",
device_xname(&sc->sc_dev));
for (trk = th.starting_track; trk <= th.ending_track; trk++)
sc->toc[trk].toc.idx_no = 0x00;
trk = th.ending_track - th.starting_track + 1;
for (retry = 300; retry && trk > 0; retry--) {
if (mcd_getqchan(sc, &q, CD_TRACK_INFO) != 0)
break;
if (q.toc.trk_no != 0x00 || q.toc.idx_no == 0x00)
continue;
idx = bcd2bin(q.toc.idx_no);
if (idx < MCD_MAXTOCS &&
sc->toc[idx].toc.idx_no == 0x00) {
sc->toc[idx] = q;
trk--;
}
}
/* Inform the drive that we're finished so it turns off the light. */
if ((error = mcd_setmode(sc, MCD_MD_COOKED)) != 0)
return error;
if (trk != 0)
return EINVAL;
/* Add a fake last+1 for mcd_playtracks(). */
idx = th.ending_track + 1;
sc->toc[idx].toc.control = sc->toc[idx-1].toc.control;
sc->toc[idx].toc.addr_type = sc->toc[idx-1].toc.addr_type;
sc->toc[idx].toc.trk_no = 0x00;
sc->toc[idx].toc.idx_no = 0xaa;
sc->toc[idx].toc.absolute_pos[0] = sc->volinfo.vol_msf[0];
sc->toc[idx].toc.absolute_pos[1] = sc->volinfo.vol_msf[1];
sc->toc[idx].toc.absolute_pos[2] = sc->volinfo.vol_msf[2];
return 0;
}
int
mcd_toc_entries(struct mcd_softc *sc, struct ioc_read_toc_entry *te, struct cd_toc_entry *entries, int *count)
{
int len = te->data_len;
struct ioc_toc_header header;
u_char trk;
daddr_t lba;
int error, n;
if (len < sizeof(struct cd_toc_entry))
return EINVAL;
if (te->address_format != CD_MSF_FORMAT &&
te->address_format != CD_LBA_FORMAT)
return EINVAL;
/* Copy the TOC header. */
if ((error = mcd_toc_header(sc, &header)) != 0)
return error;
/* Verify starting track. */
trk = te->starting_track;
if (trk == 0x00)
trk = header.starting_track;
else if (trk == 0xaa)
trk = header.ending_track + 1;
else if (trk < header.starting_track ||
trk > header.ending_track + 1)
return EINVAL;
/* Copy the TOC data. */
for (n = 0; trk <= header.ending_track + 1; n++, trk++) {
if (n * sizeof entries[0] > len)
break;
if (sc->toc[trk].toc.idx_no == 0x00)
continue;
entries[n].control = sc->toc[trk].toc.control;
entries[n].addr_type = sc->toc[trk].toc.addr_type;
entries[n].track = bcd2bin(sc->toc[trk].toc.idx_no);
switch (te->address_format) {
case CD_MSF_FORMAT:
entries[n].addr.addr[0] = 0;
entries[n].addr.addr[1] = bcd2bin(sc->toc[trk].toc.absolute_pos[0]);
entries[n].addr.addr[2] = bcd2bin(sc->toc[trk].toc.absolute_pos[1]);
entries[n].addr.addr[3] = bcd2bin(sc->toc[trk].toc.absolute_pos[2]);
break;
case CD_LBA_FORMAT:
lba = msf2hsg(sc->toc[trk].toc.absolute_pos, 0);
entries[n].addr.addr[0] = lba >> 24;
entries[n].addr.addr[1] = lba >> 16;
entries[n].addr.addr[2] = lba >> 8;
entries[n].addr.addr[3] = lba;
break;
}
}
*count = n;
return 0;
}
int
mcd_stop(struct mcd_softc *sc)
{
struct mcd_mbox mbx;
int error;
if (sc->debug)
printf("%s: mcd_stop: stopping play\n", device_xname(&sc->sc_dev));
mbx.cmd.opcode = MCD_CMDSTOPAUDIO;
mbx.cmd.length = 0;
mbx.res.length = 0;
if ((error = mcd_send(sc, &mbx, 1)) != 0)
return error;
sc->audio_status = CD_AS_PLAY_COMPLETED;
return 0;
}
int
mcd_getqchan(struct mcd_softc *sc, union mcd_qchninfo *q, int qchn)
{
struct mcd_mbox mbx;
int error;
if (qchn == CD_TRACK_INFO) {
if ((error = mcd_setmode(sc, MCD_MD_TOC)) != 0)
return error;
} else {
if ((error = mcd_setmode(sc, MCD_MD_COOKED)) != 0)
return error;
}
if (qchn == CD_MEDIA_CATALOG) {
if ((error = mcd_setupc(sc, MCD_UPC_ENABLE)) != 0)
return error;
} else {
if ((error = mcd_setupc(sc, MCD_UPC_DISABLE)) != 0)
return error;
}
mbx.cmd.opcode = MCD_CMDGETQCHN;
mbx.cmd.length = 0;
mbx.res.length = sizeof(mbx.res.data.qchninfo);
if ((error = mcd_send(sc, &mbx, 1)) != 0)
return error;
*q = mbx.res.data.qchninfo;
return 0;
}
int
mcd_read_subchannel(struct mcd_softc *sc, struct ioc_read_subchannel *ch, struct cd_sub_channel_info *info)
{
int len = ch->data_len;
union mcd_qchninfo q;
daddr_t lba;
int error;
if (sc->debug)
printf("%s: subchan: af=%d df=%d\n", device_xname(&sc->sc_dev),
ch->address_format, ch->data_format);
if (len > sizeof(*info) || len < sizeof(info->header))
return EINVAL;
if (ch->address_format != CD_MSF_FORMAT &&
ch->address_format != CD_LBA_FORMAT)
return EINVAL;
if (ch->data_format != CD_CURRENT_POSITION &&
ch->data_format != CD_MEDIA_CATALOG)
return EINVAL;
if ((error = mcd_getqchan(sc, &q, ch->data_format)) != 0)
return error;
info->header.audio_status = sc->audio_status;
info->what.media_catalog.data_format = ch->data_format;
switch (ch->data_format) {
case CD_MEDIA_CATALOG:
info->what.media_catalog.mc_valid = 1;
#if 0
info->what.media_catalog.mc_number =
#endif
break;
case CD_CURRENT_POSITION:
info->what.position.track_number = bcd2bin(q.current.trk_no);
info->what.position.index_number = bcd2bin(q.current.idx_no);
switch (ch->address_format) {
case CD_MSF_FORMAT:
info->what.position.reladdr.addr[0] = 0;
info->what.position.reladdr.addr[1] = bcd2bin(q.current.relative_pos[0]);
info->what.position.reladdr.addr[2] = bcd2bin(q.current.relative_pos[1]);
info->what.position.reladdr.addr[3] = bcd2bin(q.current.relative_pos[2]);
info->what.position.absaddr.addr[0] = 0;
info->what.position.absaddr.addr[1] = bcd2bin(q.current.absolute_pos[0]);
info->what.position.absaddr.addr[2] = bcd2bin(q.current.absolute_pos[1]);
info->what.position.absaddr.addr[3] = bcd2bin(q.current.absolute_pos[2]);
break;
case CD_LBA_FORMAT:
lba = msf2hsg(q.current.relative_pos, 1);
/*
* Pre-gap has index number of 0, and decreasing MSF
* address. Must be converted to negative LBA, per
* SCSI spec.
*/
if (info->what.position.index_number == 0x00)
lba = -lba;
info->what.position.reladdr.addr[0] = lba >> 24;
info->what.position.reladdr.addr[1] = lba >> 16;
info->what.position.reladdr.addr[2] = lba >> 8;
info->what.position.reladdr.addr[3] = lba;
lba = msf2hsg(q.current.absolute_pos, 0);
info->what.position.absaddr.addr[0] = lba >> 24;
info->what.position.absaddr.addr[1] = lba >> 16;
info->what.position.absaddr.addr[2] = lba >> 8;
info->what.position.absaddr.addr[3] = lba;
break;
}
break;
}
return 0;
}
int
mcd_playtracks(struct mcd_softc *sc, struct ioc_play_track *p)
{
struct mcd_mbox mbx;
int a = p->start_track;
int z = p->end_track;
int error;
if (sc->debug)
printf("%s: playtracks: from %d:%d to %d:%d\n",
device_xname(&sc->sc_dev),
a, p->start_index, z, p->end_index);
if (a < bcd2bin(sc->volinfo.trk_low) ||
a > bcd2bin(sc->volinfo.trk_high) ||
a > z ||
z < bcd2bin(sc->volinfo.trk_low) ||
z > bcd2bin(sc->volinfo.trk_high))
return EINVAL;
if ((error = mcd_setmode(sc, MCD_MD_COOKED)) != 0)
return error;
mbx.cmd.opcode = MCD_CMDREADSINGLESPEED;
mbx.cmd.length = sizeof(mbx.cmd.data.play);
mbx.cmd.data.play.start_msf[0] = sc->toc[a].toc.absolute_pos[0];
mbx.cmd.data.play.start_msf[1] = sc->toc[a].toc.absolute_pos[1];
mbx.cmd.data.play.start_msf[2] = sc->toc[a].toc.absolute_pos[2];
mbx.cmd.data.play.end_msf[0] = sc->toc[z+1].toc.absolute_pos[0];
mbx.cmd.data.play.end_msf[1] = sc->toc[z+1].toc.absolute_pos[1];
mbx.cmd.data.play.end_msf[2] = sc->toc[z+1].toc.absolute_pos[2];
sc->lastpb = mbx.cmd;
mbx.res.length = 0;
return mcd_send(sc, &mbx, 1);
}
int
mcd_playmsf(struct mcd_softc *sc, struct ioc_play_msf *p)
{
struct mcd_mbox mbx;
int error;
if (sc->debug)
printf("%s: playmsf: from %d:%d.%d to %d:%d.%d\n",
device_xname(&sc->sc_dev),
p->start_m, p->start_s, p->start_f,
p->end_m, p->end_s, p->end_f);
if ((p->start_m * 60 * 75 + p->start_s * 75 + p->start_f) >=
(p->end_m * 60 * 75 + p->end_s * 75 + p->end_f))
return EINVAL;
if ((error = mcd_setmode(sc, MCD_MD_COOKED)) != 0)
return error;
mbx.cmd.opcode = MCD_CMDREADSINGLESPEED;
mbx.cmd.length = sizeof(mbx.cmd.data.play);
mbx.cmd.data.play.start_msf[0] = bin2bcd(p->start_m);
mbx.cmd.data.play.start_msf[1] = bin2bcd(p->start_s);
mbx.cmd.data.play.start_msf[2] = bin2bcd(p->start_f);
mbx.cmd.data.play.end_msf[0] = bin2bcd(p->end_m);
mbx.cmd.data.play.end_msf[1] = bin2bcd(p->end_s);
mbx.cmd.data.play.end_msf[2] = bin2bcd(p->end_f);
sc->lastpb = mbx.cmd;
mbx.res.length = 0;
return mcd_send(sc, &mbx, 1);
}
int
mcd_playblocks(struct mcd_softc *sc, struct ioc_play_blocks *p)
{
struct mcd_mbox mbx;
int error;
if (sc->debug)
printf("%s: playblocks: blkno %d length %d\n",
device_xname(&sc->sc_dev), p->blk, p->len);
if (p->blk > sc->disksize || p->len > sc->disksize ||
(p->blk + p->len) > sc->disksize)
return 0;
if ((error = mcd_setmode(sc, MCD_MD_COOKED)) != 0)
return error;
mbx.cmd.opcode = MCD_CMDREADSINGLESPEED;
mbx.cmd.length = sizeof(mbx.cmd.data.play);
hsg2msf(p->blk, mbx.cmd.data.play.start_msf);
hsg2msf(p->blk + p->len, mbx.cmd.data.play.end_msf);
sc->lastpb = mbx.cmd;
mbx.res.length = 0;
return mcd_send(sc, &mbx, 1);
}
int
mcd_pause(struct mcd_softc *sc)
{
union mcd_qchninfo q;
int error;
/* Verify current status. */
if (sc->audio_status != CD_AS_PLAY_IN_PROGRESS) {
printf("%s: pause: attempted when not playing\n",
device_xname(&sc->sc_dev));
return EINVAL;
}
/* Get the current position. */
if ((error = mcd_getqchan(sc, &q, CD_CURRENT_POSITION)) != 0)
return error;
/* Copy it into lastpb. */
sc->lastpb.data.seek.start_msf[0] = q.current.absolute_pos[0];
sc->lastpb.data.seek.start_msf[1] = q.current.absolute_pos[1];
sc->lastpb.data.seek.start_msf[2] = q.current.absolute_pos[2];
/* Stop playing. */
if ((error = mcd_stop(sc)) != 0)
return error;
/* Set the proper status and exit. */
sc->audio_status = CD_AS_PLAY_PAUSED;
return 0;
}
int
mcd_resume(struct mcd_softc *sc)
{
struct mcd_mbox mbx;
int error;
if (sc->audio_status != CD_AS_PLAY_PAUSED)
return EINVAL;
if ((error = mcd_setmode(sc, MCD_MD_COOKED)) != 0)
return error;
mbx.cmd = sc->lastpb;
mbx.res.length = 0;
return mcd_send(sc, &mbx, 1);
}
int
mcd_eject(struct mcd_softc *sc)
{
struct mcd_mbox mbx;
mbx.cmd.opcode = MCD_CMDEJECTDISK;
mbx.cmd.length = 0;
mbx.res.length = 0;
return mcd_send(sc, &mbx, 0);
}
int
mcd_setlock(struct mcd_softc *sc, int mode)
{
struct mcd_mbox mbx;
mbx.cmd.opcode = MCD_CMDSETLOCK;
mbx.cmd.length = sizeof(mbx.cmd.data.lockmode);
mbx.cmd.data.lockmode.mode = mode;
mbx.res.length = 0;
return mcd_send(sc, &mbx, 1);
}
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