diff options
Diffstat (limited to 'sys/dev/mcd/mcd.c')
-rw-r--r-- | sys/dev/mcd/mcd.c | 63 |
1 files changed, 53 insertions, 10 deletions
diff --git a/sys/dev/mcd/mcd.c b/sys/dev/mcd/mcd.c index 9d6ab63..ac1bbad 100644 --- a/sys/dev/mcd/mcd.c +++ b/sys/dev/mcd/mcd.c @@ -40,7 +40,7 @@ * 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 1.63 1996/01/30 23:27:20 ache Exp $ + * $Id: mcd.c,v 1.64 1996/02/01 16:51:53 ache Exp $ */ static char COPYRIGHT[] = "mcd-driver (C)1993 by H.Veit & B.Moore"; @@ -203,6 +203,7 @@ static int mcd_eject(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_playmsf(int unit, struct ioc_play_msf *pt); +static int mcd_playblocks(int unit, struct ioc_play_blocks *); static int mcd_pause(int unit); static int mcd_resume(int unit); static int mcd_lock_door(int unit, int lock); @@ -594,7 +595,7 @@ MCD_TRACE("ioctl called 0x%x\n", cmd); case CDIOCPLAYBLOCKS: if (!(cd->flags & MCDVALID)) return ENXIO; - return EINVAL; + return mcd_playblocks(unit, (struct ioc_play_blocks *) addr); case CDIOCPLAYMSF: if (!(cd->flags & MCDVALID)) return ENXIO; @@ -1598,20 +1599,35 @@ mcd_subchan(int unit, struct ioc_read_subchannel *sc) } static int -mcd_playmsf(int unit, struct ioc_play_msf *pt) +mcd_playmsf(int unit, struct ioc_play_msf *p) { + struct mcd_data *cd = mcd_data + unit; struct mcd_read2 pb; + if (cd->debug) + printf("mcd%d: playmsf: from %d:%d.%d to %d:%d.%d\n", + unit, + 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(cd->volinfo.vol_msf) * 60 * 75 + + S_msf(cd->volinfo.vol_msf) * 75 + + F_msf(cd->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(unit, MCD_MD_COOKED) != 0) return EIO; - pb.start_msf[0] = bin2bcd(pt->start_m); - pb.start_msf[1] = bin2bcd(pt->start_s); - pb.start_msf[2] = bin2bcd(pt->start_f); - pb.end_msf[0] = bin2bcd(pt->end_m); - pb.end_msf[1] = bin2bcd(pt->end_s); - pb.end_msf[2] = bin2bcd(pt->end_f); - return mcd_play(unit, &pb); } @@ -1643,6 +1659,33 @@ mcd_playtracks(int unit, struct ioc_play_track *pt) pb.end_msf[i] = cd->toc[z+1].hd_pos_msf[i]; } + if (mcd_setmode(unit, MCD_MD_COOKED) != 0) + return EIO; + + return mcd_play(unit, &pb); +} + +static int +mcd_playblocks(int unit, struct ioc_play_blocks *p) +{ + struct mcd_data *cd = mcd_data + unit; + struct mcd_read2 pb; + + if (cd->debug) + printf("mcd%d: playblocks: blkno %d length %d\n", + unit, p->blk, p->len); + + if (p->blk > cd->disksize || p->len > cd->disksize || + p->blk < 0 || p->len < 0 || + (p->blk + p->len) > cd->disksize) + return EINVAL; + + hsg2msf(p->blk, pb.start_msf); + hsg2msf(p->blk + p->len, pb.end_msf); + + if (mcd_setmode(unit, MCD_MD_COOKED) != 0) + return EIO; + return mcd_play(unit, &pb); } |