prepared to mount multiple partitions into one logical file system (most useful for Ondio, internal memory + external MMC)

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@5514 a1c6a512-1295-4272-9138-f99709370657

5 files changed, 40 insertions, 10 deletions

diff --git a/apps/main.c b/apps/main.c
index ac84027..572e0a3 100644
--- a/apps/main.c
+++ b/apps/main.c
@@ -101,6 +101,9 @@ int main(void)
 #ifdef CONFIG_TUNER
 #include "radio.h"
 #endif
+#ifdef HAVE_MMC
+#include "ata_mmc.h"
+#endif
 
 /*#define AUTOROCK*/ /* define this to check for "autostart.rock" on boot */
 
@@ -236,7 +239,8 @@ void init(void)
 
     usb_start_monitoring();
 
-    pinfo = disk_init();
+    /* FixMe: the same kind of mounting happens in usb.c, share the code. */
+    pinfo = disk_init(IF_MV(0));
     if (!pinfo)
     {
         lcd_clear_display();
@@ -252,14 +256,15 @@ void init(void)
         system_reboot();
     }
 
+    fat_init();
     for ( i=0; i<4; i++ ) {
-        if (!fat_mount(pinfo[i].start))
-            break;
+        if (!fat_mount(IF_MV2(0,) IF_MV2(0,) pinfo[i].start))
+            break; /* only one partition gets mounted as of now */
     }
 
     if ( i==4 ) {
         DEBUGF("No partition found, trying to mount sector 0.\n");
-        rc = fat_mount(0);
+        rc = fat_mount(IF_MV2(0,) IF_MV2(0,) 0);
         if(rc) {
             lcd_clear_display();
             lcd_puts(0,0,"No FAT32");
@@ -272,7 +277,26 @@ void init(void)
             /* The USB thread will panic if the drive still can't be mounted */
         }
     }
-
+#ifdef HAVE_MULTIVOLUME
+    /* mount partition on the optional volume */
+#ifdef HAVE_MMC
+    if (mmc_detect()) /* for Ondio, only if card detected */
+#endif
+    {
+        pinfo = disk_init(1);
+        if (pinfo)
+        {
+            for ( i=0; i<4; i++ ) {
+                if (!fat_mount(1, 1, pinfo[i].start))
+                    break; /* only one partition gets mounted as of now */
+            }
+
+            if ( i==4 ) {
+                rc = fat_mount(1, 1, 0);
+            }
+        }
+    }
+#endif /* #ifdef HAVE_MULTIVOLUME */
     settings_calc_config_sector();
     settings_load(SETTINGS_ALL);
     settings_apply();
diff --git a/apps/main_menu.c b/apps/main_menu.c
index 1c27f75..68e2a03 100644
--- a/apps/main_menu.c
+++ b/apps/main_menu.c
@@ -146,7 +146,7 @@ bool show_info(void)
     int state = 1;
     unsigned int size, free;
 
-    fat_size( &size, &free );
+    fat_size( IF_MV2(0,) &size, &free );
     size /= 1024;
     free /= 1024;
 
diff --git a/apps/settings.c b/apps/settings.c
index ff9c57d..d4945d4 100644
--- a/apps/settings.c
+++ b/apps/settings.c
@@ -513,8 +513,7 @@ static int load_config_buffer(int which)
     if (which & SETTINGS_HD)
     {
         if (config_sector != 0) {
-            ata_read_sectors( config_sector, 1,  config_block);
-
+            ata_read_sectors(IF_MV2(0,) config_sector, 1,  config_block);
             /* calculate the checksum, check it and the header */
             chksum = calculate_config_checksum(config_block);
         
@@ -623,7 +622,7 @@ void settings_calc_config_sector(void)
     int i, partition_start;
     int sector = 0;
 
-    if (fat_startsector() != 0)    /* There is a partition table */
+    if (fat_startsector(IF_MV(0)) != 0)    /* There is a partition table */
     {
         sector = 61;
         for (i = 0; i < 4; i++)
diff --git a/apps/tree.c b/apps/tree.c
index 87a0392..71af90f 100644
--- a/apps/tree.c
+++ b/apps/tree.c
@@ -302,6 +302,13 @@ static int compare(const void* p1, const void* p2)
     if (e1->attr & ATTR_DIRECTORY && e2->attr & ATTR_DIRECTORY)
     {   /* two directories */
         criteria = global_settings.sort_dir;
+        if (e1->attr & ATTR_VOLUME || e2->attr & ATTR_VOLUME)
+        {   /* a volume identifier is involved */
+            if (e1->attr & ATTR_VOLUME && e2->attr & ATTR_VOLUME)
+                criteria = 0; /* two volumes: sort alphabetically */
+            else /* only one is a volume: volume first */
+                return (e2->attr & ATTR_VOLUME) - (e1->attr & ATTR_VOLUME);
+        }
     }
     else if (!(e1->attr & ATTR_DIRECTORY) && !(e2->attr & ATTR_DIRECTORY))
     {   /* two files */
diff --git a/apps/tree.h b/apps/tree.h
index c2606e1..f22163a 100644
--- a/apps/tree.h
+++ b/apps/tree.h
@@ -108,7 +108,7 @@ struct filetype {
 };
  
 
-/* using attribute bits not used by FAT (FAT uses lower 6) */
+/* using attribute bits not used by FAT (FAT uses lower 7) */
 
 #define TREE_ATTR_THUMBNAIL 0x0080 /* corresponding .talk file exists */