From 1a5962f2be995b669f2cc3a49be33b3ecd8dede0 Mon Sep 17 00:00:00 2001
From: Jörg Hohensohn <hohensoh@rockbox.org>
Date: Wed, 29 Dec 2004 22:10:24 +0000
Subject: Shared mounting code, also more general. It will mount multiple HD
 partitions, too, once HAVE_MULTIVOLUME is enabled.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@5518 a1c6a512-1295-4272-9138-f99709370657
---
 apps/main.c            | 48 +++--------------------------------------------
 firmware/common/disk.c | 51 +++++++++++++++++++++++++++++++++++++++++++++++++-
 firmware/export/disk.h |  1 +
 firmware/usb.c         | 35 +++-------------------------------
 4 files changed, 57 insertions(+), 78 deletions(-)

diff --git a/apps/main.c b/apps/main.c
index 572e0a3114..fece06a587 100644
--- a/apps/main.c
+++ b/apps/main.c
@@ -156,7 +156,6 @@ void init(void)
 void init(void)
 {
     int rc, i;
-    struct partinfo* pinfo;
     /* if nobody initialized ATA before, I consider this a cold start */
     bool coldstart = (PACR2 & 0x4000) != 0; /* starting from Flash */
 
@@ -240,12 +239,12 @@ void init(void)
     usb_start_monitoring();
 
     /* FixMe: the same kind of mounting happens in usb.c, share the code. */
-    pinfo = disk_init(IF_MV(0));
-    if (!pinfo)
+    rc = disk_mount_all();
+    if (rc<=0)
     {
         lcd_clear_display();
         lcd_puts(0, 0, "No partition");
-        lcd_puts(0, 1, "table.");
+        lcd_puts(0, 1, "found.");
 #ifdef HAVE_LCD_BITMAP
         lcd_puts(0, 2, "Insert USB cable");
         lcd_puts(0, 3, "and fix it.");
@@ -256,47 +255,6 @@ void init(void)
         system_reboot();
     }
 
-    fat_init();
-    for ( i=0; i<4; i++ ) {
-        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(IF_MV2(0,) IF_MV2(0,) 0);
-        if(rc) {
-            lcd_clear_display();
-            lcd_puts(0,0,"No FAT32");
-            lcd_puts(0,1,"partition!");
-            lcd_update();
-            sleep(HZ);
-            /* Don't leave until we have been in USB mode */
-            while(!dbg_partitions());
-
-            /* 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/firmware/common/disk.c b/firmware/common/disk.c
index cfe15984f9..aa42f0793f 100644
--- a/firmware/common/disk.c
+++ b/firmware/common/disk.c
@@ -19,6 +19,10 @@
 #include <stdio.h>
 #include "ata.h"
 #include "debug.h"
+#include "fat.h"
+#ifdef HAVE_MMC
+#include "ata_mmc.h"
+#endif
 #include "disk.h"
 
 /* Partition table entry layout:
@@ -39,7 +43,7 @@
           (array[pos] | (array[pos+1] << 8 ) | \
           (array[pos+2] << 16 ) | (array[pos+3] << 24 ))
 
-static struct partinfo part[8];
+static struct partinfo part[8]; /* space for 4 partitions on 2 drives */
 
 struct partinfo* disk_init(IF_MV_NONVOID(int drive))
 {
@@ -89,3 +93,48 @@ struct partinfo* disk_partinfo(int partition)
     return &part[partition];
 }
 
+int disk_mount_all(void)
+{
+    struct partinfo* pinfo;
+    int i,j;
+    int mounted = 0;
+    bool found;
+    int drives = 1;
+#ifdef HAVE_MMC
+    if (mmc_detect()) /* for Ondio, only if card detected */
+    {
+        drives = 2; /* in such case we have two drives to try */
+    }
+#endif
+
+    fat_init(); /* reset all mounted partitions */
+    for (j=0; j<drives; j++)
+    {
+        found = false; /* reset partition-on-drive flag */
+        pinfo = disk_init(IF_MV(j));
+        if (pinfo == NULL)
+        {
+            continue;
+        }
+        for (i=0; mounted<NUM_VOLUMES && i<4; i++)
+        {
+            if (!fat_mount(IF_MV2(mounted,) IF_MV2(j,) pinfo[i].start))
+            {
+                mounted++;
+                found = true; /* at least one valid entry */
+            }
+        }
+
+        if (!found && mounted<NUM_VOLUMES) /* none of the 4 entries worked? */
+        {   /* try "superfloppy" mode */
+            DEBUGF("No partition found, trying to mount sector 0.\n");
+            if (!fat_mount(IF_MV2(mounted,) IF_MV2(j,) 0))
+            {
+                mounted++;
+            }
+        }
+    }
+
+    return mounted;
+}
+
diff --git a/firmware/export/disk.h b/firmware/export/disk.h
index 70b73c6547..e8525d1f75 100644
--- a/firmware/export/disk.h
+++ b/firmware/export/disk.h
@@ -34,5 +34,6 @@ struct partinfo {
 /* returns a pointer to an array of 8 partinfo structs */
 struct partinfo* disk_init(IF_MV_NONVOID(int volume));
 struct partinfo* disk_partinfo(int partition);
+int disk_mount_all(void); /* returns the # of successful mounts */
 
 #endif
diff --git a/firmware/usb.c b/firmware/usb.c
index ab8e080c45..7060ccfe23 100644
--- a/firmware/usb.c
+++ b/firmware/usb.c
@@ -122,7 +122,6 @@ static void usb_enable(bool on)
 static void usb_slave_mode(bool on)
 {
     int rc;
-    struct partinfo* pinfo;
     
     if(on)
     {
@@ -135,7 +134,6 @@ static void usb_slave_mode(bool on)
     }
     else
     {
-        int i;
         DEBUGF("Leaving USB slave mode\n");
         
         /* Let the ISDx00 settle */
@@ -146,6 +144,7 @@ static void usb_slave_mode(bool on)
         rc = ata_init();
         if(rc)
         {
+            /* fixme: can we remove this? (already such in main.c) */
             char str[32];
             lcd_clear_display();
             snprintf(str, 31, "ATA error: %d", rc);
@@ -157,38 +156,10 @@ static void usb_slave_mode(bool on)
             panicf("ata: %d",rc);
         }
     
-        pinfo = disk_init(IF_MV(0));
-        if (!pinfo)
-            panicf("disk: NULL");
-    
-        fat_init();
-        for ( i=0; i<4; i++ ) {
-            rc = fat_mount(IF_MV2(0,) IF_MV2(0,) pinfo[i].start);
-            if (!rc)
-                break; /* only one partition gets mounted as of now */
-        }
-        if (i==4)
+        rc = disk_mount_all();
+        if (rc <= 0) /* no partition */
             panicf("mount: %d",rc);
-#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 */
     }
 }
 
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