/***********************************************************************
 *
 *  Copyright (c) 2006-2007  Broadcom Corporation
 *  All Rights Reserved
 *
<:label-BRCM:2012:DUAL/GPL:standard

Unless you and Broadcom execute a separate written software license
agreement governing use of this software, this software is licensed
to you under the terms of the GNU General Public License version 2
(the "GPL"), available at http://www.broadcom.com/licenses/GPLv2.php,
with the following added to such license:

   As a special exception, the copyright holders of this software give
   you permission to link this software with independent modules, and
   to copy and distribute the resulting executable under terms of your
   choice, provided that you also meet, for each linked independent
   module, the terms and conditions of the license of that module.
   An independent module is a module which is not derived from this
   software.  The special exception does not apply to any modifications
   of the software.

Not withstanding the above, under no circumstances may you combine
this software in any way with any other Broadcom software provided
under a license other than the GPL, without Broadcom's express prior
written consent.

:>
 *
 ************************************************************************/

#include "cms.h"
#include "cms_util.h"
#include "cms_boardioctl.h"

CmsRet cmsPsp_set(const char *key, const void *buf, UINT32 bufLen)
{
   char *currBuf;
   SINT32 count;

   /* reset value with key */
   if (bufLen == 0 && buf == NULL)
   {
      return (devCtl_boardIoctl(BOARD_IOCTL_FLASH_WRITE, SCRATCH_PAD,
                                (char *) key, 0, 0, NULL));
   }

   if ((currBuf = cmsMem_alloc(bufLen, 0)) == NULL)
   {
      return CMSRET_RESOURCE_EXCEEDED;
   }

   /*
    * Writing to the scratch pad is a non-preemptive time consuming
    * operation that should be avoided.
    * Check if the new data is the same as the old data.
    */
   count = devCtl_boardIoctl(BOARD_IOCTL_FLASH_READ, SCRATCH_PAD,
                           (char *) key, 0, (SINT32) bufLen, currBuf);
   if (count == (SINT32) bufLen)
   {
      if (memcmp(currBuf, buf, bufLen) == 0)
      {
         cmsMem_free(currBuf);
         /* set is exactly the same as the orig data, no set needed */
         return CMSRET_SUCCESS;
      }

      cmsMem_free(currBuf);
   }
      

   return (devCtl_boardIoctl(BOARD_IOCTL_FLASH_WRITE, SCRATCH_PAD,
                             (char *) key, 0, (SINT32) bufLen, (void *) buf));
}


SINT32 cmsPsp_get(const char *key, void *buf, UINT32 bufLen)
{

   return ((SINT32) devCtl_boardIoctl(BOARD_IOCTL_FLASH_READ, SCRATCH_PAD,
                                      (char *) key, 0, (SINT32) bufLen, buf));
}


SINT32 cmsPsp_list(char *buf, UINT32 bufLen)
{

   return ((SINT32) devCtl_boardIoctl(BOARD_IOCTL_FLASH_LIST, SCRATCH_PAD,
                                      NULL, 0, (SINT32) bufLen, buf));
}


CmsRet cmsPsp_clearAll(void)
{

   return (devCtl_boardIoctl(BOARD_IOCTL_FLASH_WRITE, SCRATCH_PAD,
                             "", -1, -1, ""));

}