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/*====================================================================*
*
* Copyright (c) 2013 Qualcomm Atheros, Inc.
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted (subject to the limitations
* in the disclaimer below) provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* * Neither the name of Qualcomm Atheros nor the names of
* its contributors may be used to endorse or promote products
* derived from this software without specific prior written
* permission.
*
* NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE
* GRANTED BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE
* COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
* OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*--------------------------------------------------------------------*/
/*====================================================================*
*
* signed WriteMOD (struct channel * channel, uint8_t module, void const * memory, size_t extent);
*
* plc.h
*
* This plugin writes a memory resident NVM image to device SDRAM
* using as many VS_WR_MOD messages as needed to complete transfer;
* runtime firmware must be running for this to work; the NVM file
* in struct plc must be opened before calling this function;
*
* This function is functionally similar to WriteNVM but downloads
* the image from memory instead of reading the image from a file;
*
*
* Contributor(s):
* Charles Maier
* Nathaniel Houghton
*
*--------------------------------------------------------------------*/
#ifndef WRITEMOD_SOURCE
#define WRITEMOD_SOURCE
#include <unistd.h>
#include <stdint.h>
#include <memory.h>
#include "../plc/plc.h"
#include "../tools/memory.h"
#include "../tools/error.h"
#include "../tools/files.h"
signed WriteMOD (struct plc * plc, uint8_t module, void const * memory, size_t extent)
{
struct channel * channel = (struct channel *)(plc->channel);
struct message * message = (struct message *)(plc->message);
#ifndef __GNUC__
#pragma pack (push,1)
#endif
struct __packed vs_wr_mod_request
{
struct ethernet_hdr ethernet;
struct qualcomm_hdr qualcomm;
uint8_t MODULEID;
uint8_t MACCESS;
uint16_t MLENGTH;
uint32_t MOFFSET;
uint32_t MCHKSUM;
uint8_t MBUFFER [PLC_RECORD_SIZE];
}
* request = (struct vs_wr_mod_request *) (message);
struct __packed vs_wr_mod_confirm
{
struct ethernet_hdr ethernet;
struct qualcomm_hdr qualcomm;
uint8_t MSTATUS;
uint8_t MODULEID;
uint8_t MACCESS;
uint16_t MLENGTH;
uint32_t MOFFSET;
}
* confirm = (struct vs_wr_mod_confirm *) (message);
#ifndef __GNUC__
#pragma pack (pop)
#endif
uint32_t length = PLC_RECORD_SIZE;
uint32_t offset = 0;
while (extent)
{
memset (message, 0, sizeof (* message));
EthernetHeader (&request->ethernet, channel->peer, channel->host, channel->type);
QualcommHeader (&request->qualcomm, 0, (VS_WR_MOD | MMTYPE_REQ));
if (length > extent)
{
length = (signed)(extent);
}
memcpy (request->MBUFFER, (byte *)(memory) + offset, length);
request->MODULEID = module;
request->MACCESS = 0;
request->MLENGTH = HTOLE16 (length);
request->MOFFSET = HTOLE32 (offset);
request->MCHKSUM = checksum32 (request->MBUFFER, length, 0);
plc->packetsize = sizeof (* request);
if (SendMME (plc) <= 0)
{
error (PLC_EXIT (plc), errno, CHANNEL_CANTSEND);
return (-1);
}
if (ReadMME (plc, 0, (VS_WR_MOD | MMTYPE_CNF)) <= 0)
{
error (PLC_EXIT (plc), errno, CHANNEL_CANTREAD);
return (-1);
}
if (confirm->MSTATUS)
{
Failure (plc, PLC_WONTDOIT);
return (-1);
}
if (LE16TOH (confirm->MLENGTH) != length)
{
error (PLC_EXIT (plc), 0, PLC_ERR_LENGTH);
return (-1);
}
if (LE32TOH (confirm->MOFFSET) != offset)
{
error (PLC_EXIT (plc), 0, PLC_ERR_OFFSET);
return (-1);
}
offset += length;
extent -= length;
}
return (0);
}
#endif
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