/* $NetBSD: mcd.c,v 1.116.10.2 2023/06/21 20:48:07 martin 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 __KERNEL_RCSID(0, "$NetBSD: mcd.c,v 1.116.10.2 2023/06/21 20:48:07 martin Exp $"); #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #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 { device_t 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_NEW(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 = { .d_open = mcdopen, .d_close = mcdclose, .d_strategy = mcdstrategy, .d_ioctl = mcdioctl, .d_dump = mcddump, .d_psize = mcdsize, .d_discard = nodiscard, .d_flag = D_DISK }; const struct cdevsw mcd_cdevsw = { .d_open = mcdopen, .d_close = mcdclose, .d_read = mcdread, .d_write = mcdwrite, .d_ioctl = mcdioctl, .d_stop = nostop, .d_tty = notty, .d_poll = nopoll, .d_mmap = nommap, .d_kqfilter = nokqfilter, .d_discard = nodiscard, .d_flag = 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 = { .d_strategy = mcdstrategy }; #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 = device_private(self); struct isa_attach_args *ia = aux; bus_space_tag_t iot = ia->ia_iot; bus_space_handle_t ioh; struct mcd_mbox mbx; sc->sc_dev = self; aprint_naive("\n"); /* Map i/o space */ if (bus_space_map(iot, ia->ia_io[0].ir_addr, MCD_NPORT, 0, &ioh)) { aprint_error(": 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)) { aprint_error(": 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); aprint_normal(": 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; error = disk_ioctl(&sc->sc_dk, dev, cmd, addr, flag, l); if (error != EPASSTHROUGH) return error; part = MCDPART(dev); switch (cmd) { 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; memset(info, 0, sizeof(*info)); 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); }