rbpaths: Add new special dir HOME_DIR for RaaA.

HOME_DIR is intended for not-so-advanced files which shall be user
visible, and thus not in /.rockbox. Therefore HOME_DIR is translated
to $HOME on RaaA, /sdcard on android, the internal memory on ypr0
and "/" on native targets.

ROCKBOX_DIR ("/.rockbox") already existed as special and is translated
to whatever the real rockbox dir is on the target (e.g. /sdcard/rockbox
on android), but it's not suitable for some files we generate
(e.g. battery-bench.txt).

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@31430 a1c6a512-1295-4272-9138-f99709370657

3 files changed, 48 insertions, 46 deletions

diff --git a/firmware/common/rbpaths.c b/firmware/common/rbpaths.c
index 95bff3341f..aacd949430 100644
--- a/firmware/common/rbpaths.c
+++ b/firmware/common/rbpaths.c
@@ -45,6 +45,7 @@
 #define opendir opendir_android
 #define mkdir   mkdir_android
 #define rmdir   rmdir_android
+static const char rbhome[] = "/sdcard";
 #elif defined(SAMSUNG_YPR0)
 #include "dir-target.h"
 #define opendir opendir_ypr0
@@ -159,19 +160,34 @@ static const char* _get_user_file_path(const char *path,
     return ret;
 }
 
+
+static const char* handle_special_dirs(const char* dir, unsigned flags,
+                                char *buf, const size_t bufsize)
+{
+    if (!strncmp(HOME_DIR, dir, HOME_DIR_LEN))
+    {
+        const char *p = dir + HOME_DIR_LEN;
+        while (*p == '/') p++;
+        snprintf(buf, bufsize, "%s/%s", rbhome, p);
+        return buf;
+    }
+    else if (!strncmp(ROCKBOX_DIR, dir, ROCKBOX_DIR_LEN))
+        return _get_user_file_path(dir, flags, buf, bufsize);
+
+    return dir;
+}
+
 int app_open(const char *name, int o, ...)
 {
     char realpath[MAX_PATH];
     va_list ap;
     int fd;
+    int flags = IS_FILE;
+    if (o & (O_CREAT|O_RDWR|O_TRUNC|O_WRONLY))
+        flags |= NEED_WRITE;
     
-    if (!strncmp(ROCKBOX_DIR, name, ROCKBOX_DIR_LEN))
-    {
-        int flags = IS_FILE;
-        if (o & (O_CREAT|O_RDWR|O_TRUNC|O_WRONLY))
-            flags |= NEED_WRITE;
-        name = _get_user_file_path(name, flags, realpath, sizeof(realpath));
-    }
+    name = handle_special_dirs(name, flags, realpath, sizeof(realpath));
+
     va_start(ap, o);
     fd = open(name, o, va_arg(ap, unsigned int));
     va_end(ap);
@@ -187,11 +203,7 @@ int app_creat(const char* name, mode_t mode)
 int app_remove(const char *name)
 {
     char realpath[MAX_PATH];
-    const char *fname = name;
-    if (!strncmp(ROCKBOX_DIR, name, ROCKBOX_DIR_LEN))
-    {
-        fname = _get_user_file_path(name, NEED_WRITE, realpath, sizeof(realpath));
-    }
+    const char *fname = handle_special_dirs(name, NEED_WRITE, realpath, sizeof(realpath));
 
     return remove(fname);
 }
@@ -199,18 +211,10 @@ int app_remove(const char *name)
 int app_rename(const char *old, const char *new)
 {
     char realpath_old[MAX_PATH], realpath_new[MAX_PATH];
+    const char *final_old, *final_new;
 
-    const char *final_old = old;
-    if (!strncmp(ROCKBOX_DIR, old, ROCKBOX_DIR_LEN))
-    {
-        final_old = _get_user_file_path(old, NEED_WRITE, realpath_old, sizeof(realpath_old));
-    }
-
-    const char *final_new = new;
-    if (!strncmp(ROCKBOX_DIR, new, ROCKBOX_DIR_LEN))
-    {
-        final_new = _get_user_file_path(new, NEED_WRITE, realpath_new, sizeof(realpath_new));
-    }
+    final_old = handle_special_dirs(old, NEED_WRITE, realpath_old, sizeof(realpath_old));
+    final_new = handle_special_dirs(new, NEED_WRITE, realpath_new, sizeof(realpath_new));
 
     return rename(final_old, final_new);
 }
@@ -218,33 +222,21 @@ int app_rename(const char *old, const char *new)
 DIR *app_opendir(const char *name)
 {
     char realpath[MAX_PATH];
-    const char *fname = name;
-    if (!strncmp(ROCKBOX_DIR, name, ROCKBOX_DIR_LEN))
-    {
-        fname = _get_user_file_path(name, 0, realpath, sizeof(realpath));
-    }
+    const char *fname = handle_special_dirs(name, 0, realpath, sizeof(realpath));
     return opendir(fname);
 }
 
 int app_mkdir(const char* name)
 {
     char realpath[MAX_PATH];
-    const char *fname = name;
-    if (!strncmp(ROCKBOX_DIR, name, ROCKBOX_DIR_LEN))
-    {
-        fname = _get_user_file_path(name, NEED_WRITE, realpath, sizeof(realpath));
-    }
+    const char *fname = handle_special_dirs(name, NEED_WRITE, realpath, sizeof(realpath));
     return mkdir(fname);
 }
 
 int app_rmdir(const char* name)
 {
     char realpath[MAX_PATH];
-    const char *fname = name;
-    if (!strncmp(ROCKBOX_DIR, name, ROCKBOX_DIR_LEN))
-    {
-        fname = _get_user_file_path(name, NEED_WRITE, realpath, sizeof(realpath));
-    }
+    const char *fname = handle_special_dirs(name, NEED_WRITE, realpath, sizeof(realpath));
     return rmdir(fname);
 }
 
diff --git a/firmware/export/rbpaths.h b/firmware/export/rbpaths.h
index 8f554c25f4..f351c5e6c9 100644
--- a/firmware/export/rbpaths.h
+++ b/firmware/export/rbpaths.h
@@ -46,6 +46,12 @@
 
 #if !defined(APPLICATION) || defined(SAMSUNG_YPR0)
 
+#ifdef SAMSUNG_YPR0
+#define HOME_DIR "/mnt/media0"
+#else
+#define HOME_DIR "/." /* dot to avoid "//XX", /./X is valid */
+#endif
+
 /* make sure both are the same for native builds */
 #undef ROCKBOX_LIBRARY_PATH
 #define ROCKBOX_LIBRARY_PATH ROCKBOX_DIR
@@ -53,12 +59,15 @@
 #define PLUGIN_DIR          ROCKBOX_DIR "/rocks"
 #define CODECS_DIR          ROCKBOX_DIR "/codecs"
 
-#define REC_BASE_DIR        "/"
-#define PLAYLIST_CATALOG_DEFAULT_DIR "/Playlists"
+#define REC_BASE_DIR        HOME_DIR
+#define PLAYLIST_CATALOG_DEFAULT_DIR HOME_DIR "/Playlists"
 
 #define paths_init()
 
-#else /* application */
+#else /* APPLICATION */
+
+#define HOME_DIR "<HOME>" /* replaced at runtime */
+#define HOME_DIR_LEN (sizeof(HOME_DIR)-1)
 
 #define PLUGIN_DIR          ROCKBOX_LIBRARY_PATH "/rockbox/rocks"
 #if (CONFIG_PLATFORM & PLATFORM_ANDROID)
@@ -67,12 +76,12 @@
 #define CODECS_DIR          ROCKBOX_LIBRARY_PATH "/rockbox/codecs"
 #endif
 
-#define REC_BASE_DIR        ROCKBOX_DIR  "/"
-#define PLAYLIST_CATALOG_DEFAULT_DIR ROCKBOX_DIR "/Playlists"
+#define REC_BASE_DIR        HOME_DIR
+#define PLAYLIST_CATALOG_DEFAULT_DIR HOME_DIR "Playlists"
 
 extern void paths_init(void);
 
-#endif /* APPLICATION */
+#endif /* !APPLICATION || SAMSUNG_YPR0 */
 
 #define LANG_DIR            ROCKBOX_DIR "/langs"
 
@@ -82,7 +91,7 @@ extern void paths_init(void);
 #define VIEWERS_DIR         PLUGIN_DIR "/viewers"
 
 #if defined(APPLICATION) && !defined(SAMSUNG_YPR0)
-#define PLUGIN_DATA_DIR          "/.rockbox/rocks.data"
+#define PLUGIN_DATA_DIR          ROCKBOX_DIR "/rocks.data"
 #define PLUGIN_GAMES_DATA_DIR    PLUGIN_DATA_DIR
 #define PLUGIN_APPS_DATA_DIR     PLUGIN_DATA_DIR
 #define PLUGIN_DEMOS_DATA_DIR    PLUGIN_DATA_DIR
diff --git a/firmware/general.c b/firmware/general.c
index 3daf2f0a78..8e6d5af9a0 100644
--- a/firmware/general.c
+++ b/firmware/general.c
@@ -24,6 +24,7 @@
 #include "general.h"
 #include "file.h"
 #include "dir.h"
+#include "rbpaths.h"
 #include "limits.h"
 #include "stdlib.h"
 #include "string-extra.h"
@@ -126,7 +127,7 @@ char *create_numbered_filename(char *buffer, const char *path,
         /* automatic numbering */
         max_num = 0;
 
-    dir = opendir(pathlen ? buffer : "/");
+    dir = opendir(pathlen ? buffer : HOME_DIR);
     if (!dir)
         return NULL;