Diff: mbed-os/features/filesystem/bd/ChainingBlockDevice.cpp

Revision:

4:75df35ef4fb6

Parent:

0:380207fcb5c1

diff -r 27100cbaaa6e -r 75df35ef4fb6 mbed-os/features/filesystem/bd/ChainingBlockDevice.cpp
--- a/mbed-os/features/filesystem/bd/ChainingBlockDevice.cpp	Thu Mar 29 14:42:59 2018 +0000
+++ b/mbed-os/features/filesystem/bd/ChainingBlockDevice.cpp	Fri Mar 30 14:07:05 2018 +0000
@@ -211,6 +211,22 @@
     return _erase_size;
 }
 
+bd_size_t ChainingBlockDevice::get_erase_size(bd_addr_t addr) const
+{
+    bd_addr_t bd_start_addr = 0;
+    for (size_t i = 0; i < _bd_count; i++) {
+        bd_size_t bdsize = _bds[i]->size();
+        if (addr < (bd_start_addr + bdsize)) {
+            return _bds[i]->get_erase_size(addr - bd_start_addr);
+        }
+        bd_start_addr += bdsize;
+    }
+
+    // Getting here implies an illegal address
+    MBED_ASSERT(0);
+    return 0; // satisfy compiler
+}
+
 int ChainingBlockDevice::get_erase_value() const
 {
     return _erase_value;