storage: 64-bit sector offsets

 * Create new 'sector_t' type alias:
    * uint64_t for all targets with HAVE_LBA48 or HAVE_SDUC
    * unsigned long for the everything else
 * Alter all storage APIs to use sector_t instead of 'unsigned long'
 * Alter Volume/Partition/storage info structures to use sector_t
 * Disk cache converted to sector_t
 * ATA Core:
    * convert to using sector_t for sector addresses and drive sizes
    * Always fill out upper 16 bits of LBA48 addresses
    * IDENTIFY INFO is fixed at 512 bytes, not SECTOR_SIZE
 * USB mass storage:
    * convert to using sector_t for sector addesses and drive sizes
    * Implement READ_16/WRITE_16 for LBA48 addresses
 * Convert FAT code to use sector_t for all sector references
 * output_dyn_value() now accepts int64_t instead of 'int'
 * Corrected "rockbox info" to work for (MULTIVOLUME & !MULTIDRIVE)
 * Better reporting of disk and (logical+physical) sector sizes in debug info
 * Detect SDUC cards and report on storage debug_info screen

To-do: SDUC

 * Refactor SD core to remove duplicate code in every driver
   * Card probe and init state machine
 * Implement core SDUC support
   * SD2.0 needs to be 2.0+ (fixed for jz47xx and x1000)
   * Host and Card ID (ACMD41)
   * 32-bit addressing for all read/write/erase operations (CMD22)
 * ADD SDUC to target device drivers, defining HAVE_SDUC as appropriate

Change-Id: Ib0138781a0081664d11511037685503df1b93608

2 files changed, 14 insertions, 12 deletions

diff --git a/firmware/target/arm/tms320dm320/creative-zvm/ata-creativezvm.c b/firmware/target/arm/tms320dm320/creative-zvm/ata-creativezvm.c
index a1985472a0..76929e603e 100644
--- a/firmware/target/arm/tms320dm320/creative-zvm/ata-creativezvm.c
+++ b/firmware/target/arm/tms320dm320/creative-zvm/ata-creativezvm.c
@@ -126,8 +126,10 @@ void GIO2(void)
 
 #define VFAT_SECTOR_SIZE(x) ( (x)/0x8000 ) /* 1GB array requires 80kB of RAM */
 
-extern int ata_read_sectors(IF_MD(int drive,) unsigned long start, int count, void* buf);
-extern int ata_write_sectors(IF_MD(int drive,) unsigned long start, int count, const void* buf);
+extern int ata_read_sectors(IF_MD(int drive,) sector_t start, int count, void* buf);
+extern int ata_write_sectors(IF_MD(int drive,) sector_t start, int count, const void* buf);
+
+// XXX 64-bit:   Due to this it's not likely that this target will ever handle 64-bit storage.
 
 struct main_header
 {
@@ -253,9 +255,9 @@ static void cfs_init(void)
     /* Read root inode */
     _ata_read_sectors(CFS_CLUSTER2CLUSTER(cfs->first_inode), 64, &sector2);
     root_inode = (struct cfs_inode*)&sector2;
-    
+
     logf("Root inode = 0x%x", root_inode);
-    
+
     logf("0x%x 0x%x", CFS_CLUSTER2CLUSTER(root_inode->first_class_chain[0]), root_inode->first_class_chain[0]);
 
     /* Read root inode's first sector */
@@ -277,9 +279,9 @@ static void cfs_init(void)
                 vfat_inode_nr = root_direntry_items[i].inode_number;
         }
     }
-    
+
     logf("VFAT inode = 0x%x", vfat_inode_nr);
-    
+
     if(vfat_inode_nr != 0)
     {
         /* Read VFAT inode */
@@ -384,19 +386,19 @@ static void cfs_init(void)
     cfs_inited = true;
 }
 
-static inline unsigned long map_sector(unsigned long sector)
+static inline sector_t map_sector(sector_t sector)
 {
     /*
      *  Sector mapping: start of CFS + FAT_SECTOR2CFS_SECTOR(sector) + missing part
      *  FAT works with sectors of 0x200 bytes, CFS with sectors of 0x8000 bytes.
      */
 #ifndef BOOTLOADER
-    unsigned long *sectors = core_get_data(sectors_handle);
+    sector_t *sectors = core_get_data(sectors_handle);
 #endif
     return cfs_start+sectors[sector/64]*64+sector%64;
 }
 
-int ata_read_sectors(IF_MD(int drive,) unsigned long start, int count, void* buf)
+int ata_read_sectors(IF_MD(int drive,) sector_t start, int count, void* buf)
 {
     if(!cfs_inited)
         cfs_init();
@@ -423,7 +425,7 @@ int ata_read_sectors(IF_MD(int drive,) unsigned long start, int count, void* buf
     }
 }
 
-int ata_write_sectors(IF_MD(int drive,) unsigned long start, int count, const void* buf)
+int ata_write_sectors(IF_MD(int drive,) sector_t start, int count, const void* buf)
 {
     if(!cfs_inited)
         cfs_init();
diff --git a/firmware/target/arm/tms320dm320/creative-zvm/ata-target.h b/firmware/target/arm/tms320dm320/creative-zvm/ata-target.h
index d0aa12e040..41b8e73ad4 100644
--- a/firmware/target/arm/tms320dm320/creative-zvm/ata-target.h
+++ b/firmware/target/arm/tms320dm320/creative-zvm/ata-target.h
@@ -36,8 +36,8 @@
 /* Nasty hack, but Creative is nasty... */
 #define ata_read_sectors _ata_read_sectors
 #define ata_write_sectors _ata_write_sectors
-extern int _ata_read_sectors(IF_MD(int drive,) unsigned long start, int count, void* buf);
-extern int _ata_write_sectors(IF_MD(int drive,) unsigned long start, int count, const void* buf);
+extern int _ata_read_sectors(IF_MD(int drive,) sector_t start, int count, void* buf);
+extern int _ata_write_sectors(IF_MD(int drive,) sector_t start, int count, const void* buf);
 
 /* General purpose memory region #1 */
 #define ATA_IOBASE      0x50FEE000