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kernel/linux-rt-4.4.41/drivers/media/common/siano/smsendian.c 2.54 KB
5113f6f70   김현기   kernel add
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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 <linux/export.h>
  #include <asm/byteorder.h>
  
  #include "smsendian.h"
  #include "smscoreapi.h"
  
  void smsendian_handle_tx_message(void *buffer)
  {
  #ifdef __BIG_ENDIAN
  	struct sms_msg_data *msg = (struct sms_msg_data *)buffer;
  	int i;
  	int msg_words;
  
  	switch (msg->x_msg_header.msg_type) {
  	case MSG_SMS_DATA_DOWNLOAD_REQ:
  	{
  		msg->msg_data[0] = le32_to_cpu(msg->msg_data[0]);
  		break;
  	}
  
  	default:
  		msg_words = (msg->x_msg_header.msg_length -
  				sizeof(struct sms_msg_hdr))/4;
  
  		for (i = 0; i < msg_words; i++)
  			msg->msg_data[i] = le32_to_cpu(msg->msg_data[i]);
  
  		break;
  	}
  #endif /* __BIG_ENDIAN */
  }
  EXPORT_SYMBOL_GPL(smsendian_handle_tx_message);
  
  void smsendian_handle_rx_message(void *buffer)
  {
  #ifdef __BIG_ENDIAN
  	struct sms_msg_data *msg = (struct sms_msg_data *)buffer;
  	int i;
  	int msg_words;
  
  	switch (msg->x_msg_header.msg_type) {
  	case MSG_SMS_GET_VERSION_EX_RES:
  	{
  		struct sms_version_res *ver =
  			(struct sms_version_res *) msg;
  		ver->chip_model = le16_to_cpu(ver->chip_model);
  		break;
  	}
  
  	case MSG_SMS_DVBT_BDA_DATA:
  	case MSG_SMS_DAB_CHANNEL:
  	case MSG_SMS_DATA_MSG:
  	{
  		break;
  	}
  
  	default:
  	{
  		msg_words = (msg->x_msg_header.msg_length -
  				sizeof(struct sms_msg_hdr))/4;
  
  		for (i = 0; i < msg_words; i++)
  			msg->msg_data[i] = le32_to_cpu(msg->msg_data[i]);
  
  		break;
  	}
  	}
  #endif /* __BIG_ENDIAN */
  }
  EXPORT_SYMBOL_GPL(smsendian_handle_rx_message);
  
  void smsendian_handle_message_header(void *msg)
  {
  #ifdef __BIG_ENDIAN
  	struct sms_msg_hdr *phdr = (struct sms_msg_hdr *)msg;
  
  	phdr->msg_type = le16_to_cpu(phdr->msg_type);
  	phdr->msg_length = le16_to_cpu(phdr->msg_length);
  	phdr->msg_flags = le16_to_cpu(phdr->msg_flags);
  #endif /* __BIG_ENDIAN */
  }
  EXPORT_SYMBOL_GPL(smsendian_handle_message_header);