release/src-rt-6.x.4708/linux/linux-2.6.36/drivers/media/dvb/siano/smsendian.c

   1 /****************************************************************
   2
   3  Siano Mobile Silicon, Inc.
   4  MDTV receiver kernel modules.
   5  Copyright (C) 2006-2009, Uri Shkolnik
   6
   7  This program is free software: you can redistribute it and/or modify
   8  it under the terms of the GNU General Public License as published by
   9  the Free Software Foundation, either version 2 of the License, or
  10  (at your option) any later version.
  11
  12  This program is distributed in the hope that it will be useful,
  13  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  GNU General Public License for more details.
  16
  17  You should have received a copy of the GNU General Public License
  18  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19
  20  ****************************************************************/
  21
  22 #include <asm/byteorder.h>
  23
  24 #include "smsendian.h"
  25 #include "smscoreapi.h"
  26
  27 void smsendian_handle_tx_message(void *buffer)
  28 {
  29 #ifdef __BIG_ENDIAN
  30         struct SmsMsgData_ST *msg = (struct SmsMsgData_ST *)buffer;
  31         int i;
  32         int msgWords;
  33
  34         switch (msg->xMsgHeader.msgType) {
  35         case MSG_SMS_DATA_DOWNLOAD_REQ:
  36         {
  37                 msg->msgData[0] = le32_to_cpu(msg->msgData[0]);
  38                 break;
  39         }
  40
  41         default:
  42                 msgWords = (msg->xMsgHeader.msgLength -
  43                                 sizeof(struct SmsMsgHdr_ST))/4;
  44
  45                 for (i = 0; i < msgWords; i++)
  46                         msg->msgData[i] = le32_to_cpu(msg->msgData[i]);
  47
  48                 break;
  49         }
  50 #endif /* __BIG_ENDIAN */
  51 }
  52 EXPORT_SYMBOL_GPL(smsendian_handle_tx_message);
  53
  54 void smsendian_handle_rx_message(void *buffer)
  55 {
  56 #ifdef __BIG_ENDIAN
  57         struct SmsMsgData_ST *msg = (struct SmsMsgData_ST *)buffer;
  58         int i;
  59         int msgWords;
  60
  61         switch (msg->xMsgHeader.msgType) {
  62         case MSG_SMS_GET_VERSION_EX_RES:
  63         {
  64                 struct SmsVersionRes_ST *ver =
  65                         (struct SmsVersionRes_ST *) msg;
  66                 ver->ChipModel = le16_to_cpu(ver->ChipModel);
  67                 break;
  68         }
  69
  70         case MSG_SMS_DVBT_BDA_DATA:
  71         case MSG_SMS_DAB_CHANNEL:
  72         case MSG_SMS_DATA_MSG:
  73         {
  74                 break;
  75         }
  76
  77         default:
  78         {
  79                 msgWords = (msg->xMsgHeader.msgLength -
  80                                 sizeof(struct SmsMsgHdr_ST))/4;
  81
  82                 for (i = 0; i < msgWords; i++)
  83                         msg->msgData[i] = le32_to_cpu(msg->msgData[i]);
  84
  85                 break;
  86         }
  87         }
  88 #endif /* __BIG_ENDIAN */
  89 }
  90 EXPORT_SYMBOL_GPL(smsendian_handle_rx_message);
  91
  92 void smsendian_handle_message_header(void *msg)
  93 {
  94 #ifdef __BIG_ENDIAN
  95         struct SmsMsgHdr_ST *phdr = (struct SmsMsgHdr_ST *)msg;
  96
  97         phdr->msgType = le16_to_cpu(phdr->msgType);
  98         phdr->msgLength = le16_to_cpu(phdr->msgLength);
  99         phdr->msgFlags = le16_to_cpu(phdr->msgFlags);
 100 #endif /* __BIG_ENDIAN */
 101 }
 102 EXPORT_SYMBOL_GPL(smsendian_handle_message_header);