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V4L/DVB (11561): Siano: add messages handling for big-endian target 

Add code that modify the content of Siano's protocol
messages when running with big-endian target.

Signed-off-by: Uri Shkolnik <uris@siano-ms.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Uri Shkolnik 2009-04-20 13:00:52 -03:00 committed by Mauro Carvalho Chehab
parent ebb6c22e80
commit cb17f9047d
2 changed files with 132 additions and 0 deletions
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100
drivers/media/dvb/siano/smsendian.c Normal file
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/****************************************************************
Siano Mobile Silicon, Inc.
MDTV receiver kernel modules.
Copyright (C) 2006-2009, Uri Shkolnik
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
****************************************************************/
#include <asm/byteorder.h>
#include "smsendian.h"
#include "smscoreapi.h"
void smsendian_handle_tx_message(void *buffer)
{
#ifdef __BIG_ENDIAN
struct SmsMsgData_ST *msg = (struct SmsMsgData_ST *)buffer;
int i;
int msgWords;
switch (msg->xMsgHeader.msgType) {
case MSG_SMS_DATA_DOWNLOAD_REQ:
{
msg->msgData[0] = le32_to_cpu(msg->msgData[0]);
break;
}
default:
msgWords = (msg->xMsgHeader.msgLength -
sizeof(struct SmsMsgHdr_ST))/4;
for (i = 0; i < msgWords; i++)
msg->msgData[i] = le32_to_cpu(msg->msgData[i]);
break;
}
#endif /* __BIG_ENDIAN */
}
void smsendian_handle_rx_message(void *buffer)
{
#ifdef __BIG_ENDIAN
struct SmsMsgData_ST *msg = (struct SmsMsgData_ST *)buffer;
int i;
int msgWords;
switch (msg->xMsgHeader.msgType) {
case MSG_SMS_GET_VERSION_EX_RES:
{
struct SmsVersionRes_ST *ver =
(struct SmsVersionRes_ST *) msg;
ver->ChipModel = le16_to_cpu(ver->ChipModel);
break;
}
case MSG_SMS_DVBT_BDA_DATA:
case MSG_SMS_DAB_CHANNEL:
case MSG_SMS_DATA_MSG:
{
break;
}
default:
{
msgWords = (msg->xMsgHeader.msgLength -
sizeof(struct SmsMsgHdr_ST))/4;
for (i = 0; i < msgWords; i++)
msg->msgData[i] = le32_to_cpu(msg->msgData[i]);
break;
}
}
#endif /* __BIG_ENDIAN */
}
void smsendian_handle_message_header(void *msg)
{
#ifdef __BIG_ENDIAN
struct SmsMsgHdr_ST *phdr = (struct SmsMsgHdr_ST *)msg;
phdr->msgType = le16_to_cpu(phdr->msgType);
phdr->msgLength = le16_to_cpu(phdr->msgLength);
phdr->msgFlags = le16_to_cpu(phdr->msgFlags);
#endif /* __BIG_ENDIAN */
}

32
drivers/media/dvb/siano/smsendian.h Normal file
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/****************************************************************
Siano Mobile Silicon, Inc.
MDTV receiver kernel modules.
Copyright (C) 2006-2009, Uri Shkolnik
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
****************************************************************/
#ifndef __SMS_ENDIAN_H__
#define __SMS_ENDIAN_H__
#include <asm/byteorder.h>
void smsendian_handle_tx_message(void *buffer);
void smsendian_handle_rx_message(void *buffer);
void smsendian_handle_message_header(void *msg);
#endif /* __SMS_ENDIAN_H__ */