static int
mcd_playmsf(struct mcd_softc *sc, struct ioc_play_msf *p)
{
struct mcd_read2 pb;
if (sc->data.debug)
device_printf(sc->dev, "playmsf: from %d:%d.%d to %d:%d.%d\n",
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) ||
(p->end_m * 60 * 75 + p->end_s * 75 + p->end_f) >
M_msf(sc->data.volinfo.vol_msf) * 60 * 75 +
S_msf(sc->data.volinfo.vol_msf) * 75 +
F_msf(sc->data.volinfo.vol_msf))
return (EINVAL);
pb.start_msf[0] = bin2bcd(p->start_m);
pb.start_msf[1] = bin2bcd(p->start_s);
pb.start_msf[2] = bin2bcd(p->start_f);
pb.end_msf[0] = bin2bcd(p->end_m);
pb.end_msf[1] = bin2bcd(p->end_s);
pb.end_msf[2] = bin2bcd(p->end_f);
if (mcd_setmode(sc, MCD_MD_COOKED) != 0)
return (EIO);
return mcd_play(sc, &pb);
}
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;
}
static int
msf2hsg(bcd_t *msf, int relative)
{
return (bcd2bin(M_msf(msf)) * 60 + bcd2bin(S_msf(msf))) * 75 +
bcd2bin(F_msf(msf)) - (!relative) * 150;
}
