Diff: Flash_USBFileSystem.cpp

Revision:

0:9056eb697726

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Flash_USBFileSystem.cpp	Wed Jul 31 19:18:22 2013 +0000
@@ -0,0 +1,51 @@
+/* mbed USBMSD_Ram Library
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+ 
+#include "Flash_USBFileSystem.h"
+ 
+FlashUSB::FlashUSB(PinName mosi, PinName miso, PinName sclk, PinName cs) : USBFileSystem("USB"), flash(mosi, miso, sclk, cs)  {
+    //no init
+    _status = 0x01;
+}
+ 
+int FlashUSB::disk_initialize() {
+    // OK
+    _status = 0x00;
+    return 0;
+}
+ 
+int FlashUSB::_disk_write(const uint8_t * buffer, uint64_t block_number) { 
+    flash.eraseSector(block_number*4096);
+    flash.write(block_number*4096, (char*) buffer, 256);
+    flash.write(block_number*4096+256, (char*) buffer+256, 256);
+    return 0;    
+}
+ 
+int FlashUSB::disk_read(uint8_t * buffer, uint64_t block_number) {
+    flash.read(block_number*4096, (char*) buffer, 512);
+    return 0;
+}
+ 
+int FlashUSB::_disk_status() { return _status; }
+int FlashUSB::disk_sync() { return 0; }
+uint64_t FlashUSB::disk_sectors() { return 512; }
+
+    
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