Beginning to create new API call burn_read_audio

cdrskin/cdrskin_timestamp.h

@@ -1 +1 @@
-#define Cdrskin_timestamP "2012.11.24.181347"
+#define Cdrskin_timestamP "2012.11.29.111344"

libburn/libburn.h

@@ -4003,7 +4003,7 @@ BURN_END_DECLS
 */
 #ifdef Libburn_develop_quality_scaN
 
-/* B21108 ts */
+/* ts B21108 */
 /* Experiments mit quality scan command F3 on Optiarc drive */
 int burn_nec_optiarc_rep_err_rate(struct burn_drive *d,
                                   int start_lba, int rate_period, int flag);
@@ -4011,4 +4011,46 @@ int burn_nec_optiarc_rep_err_rate(struct burn_drive *d,
 #endif /* Libburn_develop_quality_scaN */
 
 
+/* Early experimental:
+*/
+#define Libburn_with_read_audiO
+
+#ifdef Libburn_with_read_audiO
+
+/* ts B21119 */
+/** Read CD audio sectors in random access mode.
+    The drive must be grabbed successfully before calling this function.
+    Only CD audio tracks with 2352 bytes per sector can be read this way.
+    I.e. not data tracks, not CD-video-stream, ...
+    @param d            The drive from which to read.
+                        It must be a real MMC drive (i.e. not a stdio file)
+                        and it must have a CD loaded (i.e. not DVD or BD).
+    @param sector_no    The sector number (Logical Block Address)
+    @param data         A memory buffer capable of taking data_size bytes
+    @param data_size    The amount of data to be read. This must be aligned
+                        to full multiples of 2352.
+    @param data_count   The amount of data actually read (interesting on error)
+    @param flag         Bitfield for control purposes:
+                        bit0= - reserved -
+                        bit1= do not submit error message if read error
+                        bit2= on error do not try to read a second time
+                              with single block steps.
+                        bit3= Enable DAP : "flaw obscuring mechanisms like
+                                            audio data mute and interpolate"
+                        bit4= return -3 on SCSI error
+                                5 64 00 ILLEGAL MODE FOR THIS TRACK
+                              and prevent this error from being reported as
+                              event message. Do not retry reading in this case.
+                              (Useful to try the last two blocks of a CD
+                               track which might be non-audio because of TAO.)
+    @return 1=sucessful , <=0 an error occured
+                          with bit3:  -2= permission denied error
+    @since 1.2.6
+*/
+int burn_read_audio(struct burn_drive *d, int sector_no,
+                    char data[], off_t data_size, off_t *data_count, int flag);
+
+#endif /* Libburn_with_read_audiO */   
+
+
 #endif /*LIBBURN_H*/

libburn/libburn.ver

@@ -100,6 +100,7 @@ burn_os_open_track_src;
 burn_precheck_write;
 burn_preset_device_open;
 burn_random_access_write;
+burn_read_audio;
 burn_read_data;
 burn_read_opts_free;
 burn_read_opts_new;

libburn/libdax_msgs.h

@@ -596,6 +596,7 @@ Range "scdbackup"          :  0x00020000 to 0x0002ffff
  0x0002019a (SORRY,HIGH)   = Bad track index number
  0x0002019b (SORRY,HIGH)   = CD track number exceeds range of 1 to 99
  0x0002019c (SORRY,HIGH)   = Session has no defined tracks
+ 0x0002019d (SORRY,HIGH)   = Audio read size not properly aligned
 
 
  libdax_audioxtr:

libburn/mmc.h

@@ -36,9 +36,9 @@ void mmc_erase(struct burn_drive *, int);
 void mmc_read_toc(struct burn_drive *);
 void mmc_read_disc_info(struct burn_drive *);
 void mmc_read_atip(struct burn_drive *);
-void mmc_read_sectors(struct burn_drive *,
-		      int,
-		      int, const struct burn_read_opts *, struct buffer *);
+int mmc_read_cd(struct burn_drive *d, int start, int len,
+                int sec_type, int main_ch,
+                const struct burn_read_opts *o, struct buffer *buf, int flag);
 void mmc_set_speed(struct burn_drive *, int, int);
 void mmc_read_lead_in(struct burn_drive *, struct buffer *);
 void mmc_perform_opc(struct burn_drive *);

libburn/options.c

@@ -93,6 +93,7 @@ struct burn_read_opts *burn_read_opts_new(struct burn_drive *drive)
 	opts->report_recovered_errors = 0;
 	opts->transfer_damaged_blocks = 0;
 	opts->hardware_error_retries = 3;
+	opts->dap_bit = 0;
 
 	return opts;
 }

libburn/options.h

@@ -129,6 +129,14 @@ struct burn_read_opts
 	/** The number of retries the hardware should make to correct
 	    errors. */
 	unsigned char hardware_error_retries;
+
+	/* ts B21119 */
+	/* >>> Needs API access */
+	/** Whether to set DAP bit which allows drive to apply
+	    "flaw obscuring mechanisms like audio data mute and interpolate"
+	*/
+	unsigned int dap_bit;
+
 };
 
 #endif /* BURN__OPTIONS_H */

libburn/read.c

@@ -159,6 +159,8 @@ drive, or only store a subset of the _opts structs in drives */
 		       drive_lba);
 
 		/* >>> ts A61009 : ensure page.sectors >= 0 before calling */
+  		/* >>> ts B21123 :  Would now be d->read_cd() with
+                                    with sectype = 0 , mainch = 0xf8 */
 		d->r ead_sectors(d, drive_lba, page.sectors, o, &page);
 
 		printf("Read %d\n", page.sectors);
@@ -538,6 +540,113 @@ ex:;
 }
 
 
+#ifdef Libburn_with_read_audiO
+
+/* ts B21119 : API function*/
+int burn_read_audio(struct burn_drive *d, int sector_no,
+                    char data[], off_t data_size, off_t *data_count, int flag)
+{
+	int alignment = 2352, start, upto, chunksize = 1, err, cpy_size, i;
+	int sose_mem = 0, ret;
+	char msg[81], *wpt;
+	struct buffer *buf = NULL, *buffer_mem = d->buffer;
+
+	BURN_ALLOC_MEM(buf, struct buffer, 1);
+	*data_count = 0;
+	sose_mem = d->silent_on_scsi_error;
+
+	if (d->released) {
+		libdax_msgs_submit(libdax_messenger,
+			d->global_index, 0x00020142,
+			LIBDAX_MSGS_SEV_FATAL, LIBDAX_MSGS_PRIO_HIGH,
+			"Drive is not grabbed on random access read", 0, 0);
+		{ret = 0; goto ex;}
+	}
+	if (d->drive_role != 1) {
+		libdax_msgs_submit(libdax_messenger, d->global_index,
+			0x00020146,
+			LIBDAX_MSGS_SEV_FATAL, LIBDAX_MSGS_PRIO_HIGH,
+		"Drive is a virtual placeholder (stdio-drive or null-drive)",
+			 0, 0);
+		{ret = 0; goto ex;} 
+	}
+	if ((data_size % alignment) != 0) {
+		sprintf(msg,
+			"Audio read size not properly aligned (%d bytes)",
+			alignment);
+		libdax_msgs_submit(libdax_messenger, d->global_index,
+			0x0002019d,
+			LIBDAX_MSGS_SEV_SORRY, LIBDAX_MSGS_PRIO_HIGH,
+			msg, 0, 0);
+		{ret = 0; goto ex;}
+	}
+	if (d->busy != BURN_DRIVE_IDLE) {
+		libdax_msgs_submit(libdax_messenger,
+			d->global_index, 0x00020145,
+			LIBDAX_MSGS_SEV_FATAL, LIBDAX_MSGS_PRIO_HIGH,
+			"Drive is busy on attempt to read audio", 0, 0);
+		{ret = 0; goto ex;}
+	}
+
+        d->busy = BURN_DRIVE_READING_SYNC;
+        d->buffer = buf;
+
+	start = sector_no;
+	upto = start + data_size / alignment;
+	wpt = data;
+	for (; start < upto; start += chunksize) {
+		chunksize = upto - start;
+		if (chunksize > (BUFFER_SIZE / alignment))
+			chunksize = (BUFFER_SIZE / alignment);
+		cpy_size = chunksize * alignment;
+		if (flag & 2)
+			d->silent_on_scsi_error = 1;
+		if (flag & 16) {
+			d->had_particular_error &= ~1;
+			if (!d->silent_on_scsi_error)
+				d->silent_on_scsi_error = 2;
+		}
+		err = d->read_cd(d, start, chunksize, 1, 0x10, NULL, d->buffer,
+				 (flag & 8) >> 3);
+		if (flag & (2 | 16))
+			d->silent_on_scsi_error = sose_mem;
+		if (err == BE_CANCELLED) {
+			if ((flag & 16) && (d->had_particular_error & 1))
+				{ret = -3; goto ex;}
+			if(!(flag & 4))
+			  for (i = 0; i < chunksize - 1; i++) {
+				if (flag & 2)
+					d->silent_on_scsi_error = 1;
+				err = d->read_cd(d, start + i, 1, 1, 0x10,
+				             NULL, d->buffer, (flag & 8) >> 3);
+				if (flag & 2)
+					d->silent_on_scsi_error = sose_mem;
+				if (err == BE_CANCELLED)
+			  break;
+				memcpy(wpt, d->buffer->data, alignment);
+				wpt += alignment;
+				*data_count += alignment;
+			  }
+
+			ret = 0; goto ex;
+		}
+                memcpy(wpt, d->buffer->data, cpy_size);
+                wpt += cpy_size;
+                *data_count += cpy_size;
+        }
+
+	ret = 1;
+ex:
+	BURN_FREE_MEM(buf);
+	d->buffer = buffer_mem;
+	d->busy = BURN_DRIVE_IDLE;
+	return ret;
+}
+
+
+#endif /* Libburn_with_read_audiO */
+
+
 #ifdef Libburn_develop_quality_scaN
 
 /* B21108 ts */

libburn/sg-freebsd.c

@@ -477,7 +477,7 @@ static void enumerate_common(char *fname, int bus_no, int host_no,
 	out.read_toc = mmc_read_toc;
 	out.write = mmc_write;
 	out.erase = mmc_erase;
-	out.read_sectors = mmc_read_sectors;
+	out.read_cd = mmc_read_cd;
 	out.perform_opc = mmc_perform_opc;
 	out.set_speed = mmc_set_speed;
 	out.send_parameters = spc_select_error_params;

libburn/spc.c

@@ -1462,6 +1462,8 @@ static char *scsi_command_name(unsigned int c, int flag)
 		return "READ DISC STRUCTURE";
         case 0xb6:
 		return "SET STREAMING";
+        case 0xb9:
+		return "READ CD MSF";
         case 0xbb:
 		return "SET CD SPEED";
         case 0xbe:
@@ -1587,7 +1589,7 @@ int scsi_show_command_reply(unsigned char *opcode, int data_dir,
 	if (data_dir != FROM_DRIVE)
 		return 2;
 	if (opcode[0] == 0x28 || opcode[0] == 0x3C ||
-	    opcode[0] == 0xA8 || opcode[0] == 0xBE) {
+	    opcode[0] == 0xA8 || opcode[0] == 0xB9 || opcode[0] == 0xBE) {
 							/* READ commands */
 		/* >>> report amount of data */;
 

libburn/toc.c

@@ -147,7 +147,11 @@ void toc_find_modes(struct burn_drive *d)
 					lba = burn_msf_to_lba(e->pmin, e->psec,
 							      e->pframe);
 				mem->sectors = 1;
+
+				ts B21119 : Would now be d->read_cd() with
+					    with sectype = 0 , mainch = 0xf8
 				d->read_sectors(d, lba, mem.sectors, &o, mem);
+
 				t->mode = sector_identify(mem->data);
 */
 			}

libburn/transport.h

@@ -382,10 +382,10 @@ struct burn_drive
 	int is_stopped;
 
 	void (*read_disc_info) (struct burn_drive *);
-	void (*read_sectors) (struct burn_drive *,
-			      int start,
-			      int len,
-			      const struct burn_read_opts *, struct buffer *);
+	int (*read_cd) (struct burn_drive *, int start, int len,
+	                int sec_type, int main_ch,
+	                const struct burn_read_opts *, struct buffer *,
+	                int flag);
 	void (*perform_opc) (struct burn_drive *);
 	void (*set_speed) (struct burn_drive *, int, int);
 	void (*send_parameters) (struct burn_drive *,