Option -force enables re-formatting

cdrskin/cdrskin.c

@@ -3971,12 +3971,11 @@ int Cdrskin_blank(struct CdrskiN *skin, int flag)
           "cdrskin: SORRY : only blank=%s is implemented yet\n",fmtp[1]);
      return(0);
    } else if(profile_number == 0x14) { /* DVD-RW sequential */
-     if(do_format!=2 && do_format!=1)
+     if(do_format!=1)
        goto unsupported_with_dvd_minus_rw;
    } else if(profile_number == 0x13) { /* DVD-RW restricted overwrite */
-     if(do_format==2) { /* >>> when re-formatting is implemented:
-                                || (do_format==1 && skin->force_is_set) */
-       ;
+     if(do_format==1 && skin->force_is_set) {
+       /* ok */;
      } else if(do_format!=1) {
 unsupported_with_dvd_minus_rw:;
        fprintf(stderr,
@@ -3986,10 +3985,8 @@ unsupported_with_dvd_minus_rw:;
      } else {
        fprintf(stderr,
      "cdrskin: SORRY : blank=format_overwrite : media is already formatted\n");
-/* >>> when re-formatting is implemented
        fprintf(stderr,
        "cdrskin: HINT : If you really want to re-format, try option -force\n");
-*/
        return(2);
      }
    } else {
@@ -4001,7 +3998,9 @@ unsupported_with_dvd_minus_rw:;
      fprintf(stderr,
          "cdrskin: NOTE : blank=%s accepted not yet suitable media\n",
          fmt_text);
- } else {
+
+ } else { /* do_format */
+
    if(s!=BURN_DISC_FULL && 
       (s!=BURN_DISC_APPENDABLE || skin->no_blank_appendable)) {
      Cdrskin_release_drive(skin,0);
@@ -4025,7 +4024,9 @@ unsupported_with_dvd_minus_rw:;
      fprintf(stderr,"cdrskin: FATAL : blank=... : media is not erasable\n");
      return(0);
    }
- }
+
+ } /* ! do_format */
+
  if(skin->dummy_mode) {
    fprintf(stderr,
            "cdrskin: would have begun to %s disc if not in -dummy mode\n",
@@ -4046,7 +4047,7 @@ unsupported_with_dvd_minus_rw:;
 #ifdef Cdrskin_libburn_has_burn_disc_formaT
  } else if(do_format==1) {
    burn_disc_format(drive,(off_t) skin->blank_format_size,
-                    (skin->blank_format_type>>8)&0xff);
+            ((skin->blank_format_type>>8)&0xff) | ((!!skin->force_is_set)<<4));
 #endif
 
  } else {
@@ -5151,13 +5152,20 @@ set_blank:;
        skin->blank_format_size= 128*1024*1024;
      } else if(strcmp(cpt,"format_overwrite_full")==0) { 
        skin->do_blank= 1;
+
+#ifdef Not_yeT
+       skin->blank_format_type= 1|(1<<10);
+       skin->blank_format_size= 0;
+#else
        skin->blank_format_type= 1|(1<<8)|(1<<10);
        skin->blank_format_size= 32*1024; /* write just a minimal packet */ 
+#endif
+
      } else if(strcmp(cpt,"format_overwrite_quickest")==0) { 
        skin->do_blank= 1;
        skin->blank_format_type= 1;
        skin->blank_format_size= 0;
-     } else if(strcmp(cpt,"format_sequential")==0) { 
+     } else if(strcmp(cpt,"format_sequential")==0) {/* >>> not yet supported */
        skin->do_blank= 1;
        skin->blank_format_type= 2;
      } else if(strcmp(cpt,"help")==0) { 

cdrskin/cdrskin_timestamp.h

-#define Cdrskin_timestamP "2007.01.09.211152"
+#define Cdrskin_timestamP "2007.01.10.152350"

libburn/async.c

@@ -266,6 +266,7 @@ static void *format_worker_func(struct w_list *w)
 void burn_disc_format(struct burn_drive *drive, off_t size, int flag)
 {
 	struct format_opts o;
+	int ok = 0;
 	char msg[160];
 
 	if ((SCAN_GOING()) || find_worker(drive)) {
@@ -277,7 +278,14 @@ void burn_disc_format(struct burn_drive *drive, off_t size, int flag)
 		return;
 	}
 
-	if (drive->current_profile != 0x14) { /* no DVD-RW */
+	if (drive->current_profile == 0x14)
+		ok = 1; /* DVD-RW sequential */
+	if (drive->current_profile == 0x13 && (flag & 16)) 
+		ok = 1; /* DVD-RW Restricted Overwrite with force bit */
+
+	/* >>> DVD+RW with and without force bit ? */
+
+	if (!ok) {
 		sprintf(msg,"Will not format media type %4.4Xh",
 			drive->current_profile);
 		libdax_msgs_submit(libdax_messenger, drive->global_index,

libburn/drive.c

@@ -475,7 +475,7 @@ void burn_disc_erase_sync(struct burn_drive *d, int fast)
 
 /*
    @param flag: bit0 = fill formatted size with zeros
-                bit1, bit2 are for d->format_unit()
+                bit1, bit2 , bit4 are for d->format_unit()
 */
 void burn_disc_format_sync(struct burn_drive *d, off_t size, int flag)
 {
@@ -495,7 +495,7 @@ void burn_disc_format_sync(struct burn_drive *d, off_t size, int flag)
 
 	d->cancel = 0;
 	d->busy = BURN_DRIVE_FORMATTING;
-	ret = d->format_unit(d, size, flag & 6);
+	ret = d->format_unit(d, size, flag & 0x16); /* forward bits 1,2,4 */
 	if (ret <= 0)
 		d->cancel = 1;
 	/* reset the progress */

libburn/libburn.h

@@ -855,6 +855,8 @@ void burn_disc_erase(struct burn_drive *drive, int fast);
                       to the media and eventually perform preliminary closing.
                 bit1= insist in size 0 even if there is a better default known
                 bit2= format to maximum available size
+                bit3= -reserved-
+                bit4= enforce re-format of (partly) formatted media
 */
 void burn_disc_format(struct burn_drive *drive, off_t size, int flag);
 

libburn/mmc.c

@@ -1177,11 +1177,14 @@ int mmc_read_format_capacities(struct burn_drive *d, int top_wanted)
 			 LIBDAX_MSGS_SEV_DEBUG, LIBDAX_MSGS_PRIO_ZERO,
 			 msg, 0, 0);
 
-		if (type == 0x10) { /* full format */
+		/* Scoring strives for quick intermediate state */
+		if (type == 0x00) { /* full format (with lead out) */
 			score = 1;
-		} else if(type == 0x13) {
+		} else if (type == 0x10) { /* DVD-RW full format */
+			score = 10;
+		} else if(type == 0x13) { /* DVD-RW quick grow last session */
 			score = 100;
-		} else if(type == 0x15) {
+		} else if(type == 0x15) { /* DVD-RW Quick */
 			score = 50;
 		} else {
 	continue;
@@ -1273,12 +1276,20 @@ int mmc_read_buffer_capacity(struct burn_drive *d)
    @param flag bit1= insist in size 0 even if there is a better default known
                bit2= format to maximum available size
                bit3= expand format up to at least size
+               bit4= enforce re-format of (partly) formatted media
 */
 int mmc_format_unit(struct burn_drive *d, off_t size, int flag)
 {
 	struct buffer buf;
 	struct command c;
 	int ret, tolerate_failure = 0, return_immediately = 0, i, format_type;
+
+#ifdef Not_yeT
+	int full_format_type = 0x00; /* Full Format (or 0x10 for DVD-RW ?) */
+#else
+	int full_format_type = 0x10;
+#endif
+
 	off_t num_of_blocks = 0, diff;
 	char msg[160],descr[80];
 
@@ -1293,8 +1304,8 @@ int mmc_format_unit(struct burn_drive *d, off_t size, int flag)
 	memset(c.page->data, 0, c.page->bytes);
 
 	descr[0] = 0;
-	c.page->data[1] = 0x02;                   /* Immed */
-	c.page->data[3] = 8;                      /* Format descriptor length */
+	c.page->data[1] = 0x02;                  /* Immed */
+	c.page->data[3] = 8;                     /* Format descriptor length */
 	num_of_blocks = size / 2048;
 	for (i = 0; i < 4; i++)
 		c.page->data[4 + i] = (num_of_blocks >> (24 - 8 * i)) & 0xff;
@@ -1308,18 +1319,21 @@ int mmc_format_unit(struct burn_drive *d, off_t size, int flag)
 			/* maximum capacity */
 			memset(c.page->data + 4, 0xff, 4); 
 
-		if (d->bg_format_status == 1)       /* is partly formatted */
-			c.page->data[11] = 1;       /* Restart bit */
-		else if(d->bg_format_status == 2) { /* format in progress */
+		if(d->bg_format_status == 2) { /* format in progress */
 			strcpy(msg,"FORMAT UNIT ignored. Already in progress");
 			libdax_msgs_submit(libdax_messenger, d->global_index,
 				0x00020120,
 				LIBDAX_MSGS_SEV_NOTE, LIBDAX_MSGS_PRIO_HIGH,
 				msg, 0,0);
+			return 2;
 		}
+		if (!(flag & 16))             /* if not re-format is desired */
+			if (d->bg_format_status == 1) /* is partly formatted */
+				c.page->data[11] = 1;         /* Restart bit */
 		sprintf(descr, "DVD+RW, BGFS %d", d->bg_format_status);
 
-	} else if (d->current_profile == 0x13) {/*DVD-RW restricted overwrite*/
+	} else if (d->current_profile == 0x13 && !(flag & 16)) {
+		/*DVD-RW restricted overwrite*/
 	/* >>> use case: quick grow formatting during write */
 
 		ret = mmc_read_format_capacities(d, 0x13);
@@ -1357,17 +1371,23 @@ int mmc_format_unit(struct burn_drive *d, off_t size, int flag)
 		c.page->data[11] = 16;              /* block size * 2k */
 		sprintf(descr, "DVD-RW, quick grow");
 
-	} else if (d->current_profile == 0x14) {/*DVD-RW sequential recording*/
-	/* >>> use case : transition from Sequential to Overwrite */
+	} else if (d->current_profile == 0x14 ||
+			(d->current_profile == 0x13 && (flag & 16))) {
+		/* DVD-RW sequential recording (or Overwrite for re-format) */
+	/* >>> use case : transition from Sequential to Overwrite
+	                  re-formatting of Overwrite media  */
 
 		/* To Restricted Overwrite */
 		/* 6.5.4.2.10 , 15h DVD-RW Quick */
 		/* c.page->data[4-7]==0 : 0 blocks */
-		/* or 6.5.4.2.5 Format Type = 10h (Full Format) */
-		mmc_read_format_capacities(d, (flag & 4) ? 0x10 : 0x15);
+		/* or 6.5.4.2.1 Format Type = 00h (Full Format) */
+		/* or 6.5.4.2.5 Format Type = 10h (DVD-RW Full Format) */
+		mmc_read_format_capacities(d,
+					(flag & 4) ? full_format_type : 0x15);
 		if (d->best_format_type == 0x15 ||
-		    d->best_format_type == 0x10) {
-			if ((flag & 4) || d->best_format_type == 0x10) {
+		    d->best_format_type == full_format_type) {
+			if ((flag & 4)
+				|| d->best_format_type == full_format_type) {
 				num_of_blocks = d->best_format_size / 2048;
 				for (i = 0; i < 4; i++)
 					c.page->data[4 + i] =