89 lines
2.7 KiB
C
89 lines
2.7 KiB
C
/*
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Copyright 2007, Freie Universitaet Berlin. All rights reserved.
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These sources were developed at the Freie Universität Berlin, Computer
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Systems and Telematics group.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are
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met:
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- Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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- Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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- Neither the name of Freie Universitaet Berlin (FUB) nor the names of its
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contributors may be used to endorse or promote products derived from
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this software without specific prior written permission.
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This software is provided by FUB and the contributors on an "as is"
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basis, without any representations or warranties of any kind, express
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or implied including, but not limited to, representations or
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warranties of non-infringement, merchantability or fitness for a
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particular purpose. In no event shall FUB or contributors be liable
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for any direct, indirect, incidental, special, exemplary, or
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consequential damages (including, but not limited to, procurement of
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substitute goods or services; loss of use, data, or profits; or
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business interruption) however caused and on any theory of liability,
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whether in contract, strict liability, or tort (including negligence
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or otherwise) arising in any way out of the use of this software, even
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if advised of the possibility of such damage.
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This implementation was developed by the CST group at the FUB.
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For documentation and questions please use the web site
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http://scatterweb.mi.fu-berlin.de and the mailinglist
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scatterweb@lists.spline.inf.fu-berlin.de (subscription via the Website).
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Berlin, 2007
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*/
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/**
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* @file ScatterWeb.Sd.info.c
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* @ingroup libsd
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* @brief MMC-/SD-Card library, Additional Information
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*
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* @author Michael Baar <baar@inf.fu-berlin.de>
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* @version $Revision: 1.4 $
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*
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* $Id: sd_info.c,v 1.4 2009/05/26 12:15:46 nvt-se Exp $
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*/
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/**
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* @addtogroup libsd
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* @{
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*/
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#include "sd_internals.h"
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#include "sd.h"
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unsigned int
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sd_read_cid(struct sd_cid *pCID)
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{
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return _sd_read_register(pCID, SD_CMD_SEND_CID, sizeof (struct sd_cid));
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}
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unsigned long
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sd_get_size(void)
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{
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uint32_t size = 0;
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if(uart_lock(UART_MODE_SPI)) {
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struct sd_csd csd;
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if(_sd_read_register(&csd, SD_CMD_SEND_CSD, sizeof (struct sd_csd))) {
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size = SD_CSD_C_SIZE(csd) + 1;
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size <<= SD_CSD_C_MULT(csd);
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size <<= 2;
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size <<= sd_state.MaxBlockLen_bit;
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}
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uart_unlock(UART_MODE_SPI);
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}
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return size;
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}
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/** @} */
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