Implement CD ECC and EDC.

include/dicformat/context.h

@@ -67,6 +67,7 @@ typedef struct dicformatContext
     DumpHardwareHeader                 dumpHardwareHeader;
     struct DumpHardwareEntriesWithData *dumpHardwareEntriesWithData;
     struct ImageInfo                   imageInfo;
+    CdEccContext                       *eccCdContext;
 } dicformatContext;
 
 typedef struct dataLinkedList

include/dicformat/decls.h

@@ -35,6 +35,7 @@
 
 #include <stdint.h>
 #include <stdio.h>
+#include <stdbool.h>
 
 int identify(const char *filename);
 
@@ -64,4 +65,50 @@ int32_t cst_transform(const uint8_t *interleaved, uint8_t *sequential, size_t le
 
 int32_t cst_untransform(const uint8_t *sequential, uint8_t *interleaved, size_t length);
 
+void *ecc_cd_init();
+
+bool ecc_cd_is_suffix_correct(void *context, const uint8_t *sector);
+
+bool ecc_cd_is_suffix_correct_mode2(void *context, const uint8_t *sector);
+
+bool ecc_cd_check(void *context,
+                  const uint8_t *address,
+                  const uint8_t *data,
+                  uint32_t majorCount,
+                  uint32_t minorCount,
+                  uint32_t majorMult,
+                  uint32_t minorInc,
+                  const uint8_t *ecc,
+                  int32_t addressOffset,
+                  int32_t dataOffset,
+                  int32_t eccOffset);
+
+void ecc_cd_write(void *context,
+                  const uint8_t *address,
+                  const uint8_t *data,
+                  uint32_t majorCount,
+                  uint32_t minorCount,
+                  uint32_t majorMult,
+                  uint32_t minorInc,
+                  uint8_t *ecc,
+                  int32_t addressOffset,
+                  int32_t dataOffset,
+                  int32_t eccOffset);
+
+void ecc_cd_write_sector(void *context,
+                         const uint8_t *address,
+                         const uint8_t *data,
+                         uint8_t *ecc,
+                         int32_t addressOffset,
+                         int32_t dataOffset,
+                         int32_t eccOffset);
+
+void cd_lba_to_msf(int64_t pos, uint8_t *minute, uint8_t *second, uint8_t *frame);
+
+void ecc_cd_reconstruct_prefix(uint8_t *sector, uint8_t type, int64_t lba);
+
+void ecc_cd_reconstruct(void *context, uint8_t *sector, uint8_t type);
+
+uint32_t edc_cd_compute(void *context, uint32_t edc, const uint8_t *src, int size, int pos);
+
 #endif //LIBDICFORMAT_DECLS_H

include/dicformat/structs.h

@@ -38,6 +38,7 @@
 #pragma pack(push, 1)
 
 #include <stdint.h>
+#include <stdbool.h>
 #include <dic.h>
 #include "enums.h"
 
@@ -309,6 +310,14 @@ typedef struct Crc64Context
     uint64_t hashInt;
 } Crc64Context;
 
+typedef struct CdEccContext
+{
+    bool     initedEdc;
+    uint8_t  *eccBTable;
+    uint8_t  *eccFTable;
+    uint32_t *edcTable;
+} CdEccContext;
+
 #pragma pack(pop)
 
 #endif //LIBDICFORMAT_STRUCTS_H