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; }