Diff: USBMSD_SD/USBMSD_SD.h

Revision:

0:61e5ecd27a36

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/USBMSD_SD/USBMSD_SD.h	Mon Jan 21 12:03:05 2013 +0000
@@ -0,0 +1,86 @@
+/* mbed USBMSD_SD Library, for providing file access to SD cards
+ * Copyright (c) 2008-2010, sford
+ *
+ * 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.
+ */
+
+#ifndef USBMSD_SD_H
+#define USBMSD_SD_H
+
+#include "mbed.h"
+#include "USBMSD_HID.h"
+
+/** Use the SDcard as mass storage device using the USBMSD class
+ *
+ * @code
+ * #include "mbed.h"
+ * #include "USBMSD_SD.h"
+ *
+ * USBMSD_SD sd(p5, p6, p7, p8, 8, 8);
+ *
+ * int main() {
+ *   while(1);
+ * }
+ *
+ * @endcode
+ */
+class USBMSD_SD : public USBMSD_HID {
+public:
+
+    /** Create the File System for accessing an SD Card using SPI
+     *
+     * @param mosi SPI mosi pin connected to SD Card
+     * @param miso SPI miso pin conencted to SD Card
+     * @param sclk SPI sclk pin connected to SD Card
+     * @param cs   DigitalOut pin used as SD Card chip select
+     * @param name The name used to access the virtual filesystem
+     */
+    USBMSD_SD(PinName mosi, PinName miso, PinName sclk, PinName cs, uint8_t output_report_length = 64, uint8_t input_report_length = 64);
+    virtual int disk_initialize();
+    virtual int disk_status();
+    virtual int disk_read(uint8_t * buffer, uint64_t block_number);
+    virtual int disk_write(const uint8_t * buffer, uint64_t block_number);
+    virtual int disk_sync();
+    virtual uint64_t disk_sectors();
+    
+    virtual uint64_t disk_size(){return _sectors*512;};
+
+protected:
+
+    int _cmd(int cmd, int arg);
+    int _cmdx(int cmd, int arg);
+    int _cmd8();
+    int _cmd58();
+    int initialise_card();
+    int initialise_card_v1();
+    int initialise_card_v2();
+    
+    int _read(uint8_t * buffer, uint32_t length);
+    int _write(const uint8_t *buffer, uint32_t length);
+    uint64_t _sd_sectors();
+    uint64_t _sectors;
+    
+    uint8_t _status;
+    
+    SPI _spi;
+    DigitalOut _cs;
+    int cdv;
+};
+
+#endif