AT32F435: Cache HFE and QD image data. There is plenty of RAM.

Author: keirf

src/image/hfe.c

@@ -109,7 +109,8 @@ static bool_t hfe_open(struct image *im)
     ASSERT(8*512 <= im->bufs.read_data.len);
     volume_cache_init(im->bufs.read_data.p + 8*512,
                       im->bufs.read_data.p + im->bufs.read_data.len);
-    volume_cache_metadata_only(&im->fp);
+    if (im->bufs.read_data.len < (64*1024))
+        volume_cache_metadata_only(&im->fp);
 
     /* Get an initial value for ticks per revolution. */
     hfe_seek_track(im, 0);

src/image/qd.c

@@ -40,7 +40,8 @@ static bool_t qd_open(struct image *im)
     ASSERT(8*512 <= im->bufs.read_data.len);
     volume_cache_init(im->bufs.read_data.p + 8*512,
                       im->bufs.read_data.p + im->bufs.read_data.len);
-    volume_cache_metadata_only(&im->fp);
+    if (im->bufs.read_data.len < (64*1024))
+        volume_cache_metadata_only(&im->fp);
 
     /* There is only one track: Seek to it. */
     qd_seek_track(im, 0);