LXR linux/drivers/media/common/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 <linux/export.h>
  23#include <asm/byteorder.h>
  24
  25#include "smsendian.h"
  26#include "smscoreapi.h"
  27
  28void smsendian_handle_tx_message(void *buffer)
  29{
  30#ifdef __BIG_ENDIAN
  31        struct sms_msg_data *msg = (struct sms_msg_data *)buffer;
  32        int i;
  33        int msg_words;
  34
  35        switch (msg->x_msg_header.msg_type) {
  36        case MSG_SMS_DATA_DOWNLOAD_REQ:
  37        {
  38                msg->msg_data[0] = le32_to_cpu(msg->msg_data[0]);
  39                break;
  40        }
  41
  42        default:
  43                msg_words = (msg->x_msg_header.msg_length -
  44                                sizeof(struct sms_msg_hdr))/4;
  45
  46                for (i = 0; i < msg_words; i++)
  47                        msg->msg_data[i] = le32_to_cpu(msg->msg_data[i]);
  48
  49                break;
  50        }
  51#endif /* __BIG_ENDIAN */
  52}
  53EXPORT_SYMBOL_GPL(smsendian_handle_tx_message);
  54
  55void smsendian_handle_rx_message(void *buffer)
  56{
  57#ifdef __BIG_ENDIAN
  58        struct sms_msg_data *msg = (struct sms_msg_data *)buffer;
  59        int i;
  60        int msg_words;
  61
  62        switch (msg->x_msg_header.msg_type) {
  63        case MSG_SMS_GET_VERSION_EX_RES:
  64        {
  65                struct sms_version_res *ver =
  66                        (struct sms_version_res *) msg;
  67                ver->chip_model = le16_to_cpu(ver->chip_model);
  68                break;
  69        }
  70
  71        case MSG_SMS_DVBT_BDA_DATA:
  72        case MSG_SMS_DAB_CHANNEL:
  73        case MSG_SMS_DATA_MSG:
  74        {
  75                break;
  76        }
  77
  78        default:
  79        {
  80                msg_words = (msg->x_msg_header.msg_length -
  81                                sizeof(struct sms_msg_hdr))/4;
  82
  83                for (i = 0; i < msg_words; i++)
  84                        msg->msg_data[i] = le32_to_cpu(msg->msg_data[i]);
  85
  86                break;
  87        }
  88        }
  89#endif /* __BIG_ENDIAN */
  90}
  91EXPORT_SYMBOL_GPL(smsendian_handle_rx_message);
  92
  93void smsendian_handle_message_header(void *msg)
  94{
  95#ifdef __BIG_ENDIAN
  96        struct sms_msg_hdr *phdr = (struct sms_msg_hdr *)msg;
  97
  98        phdr->msg_type = le16_to_cpu(phdr->msg_type);
  99        phdr->msg_length = le16_to_cpu(phdr->msg_length);
 100        phdr->msg_flags = le16_to_cpu(phdr->msg_flags);
 101#endif /* __BIG_ENDIAN */
 102}
 103EXPORT_SYMBOL_GPL(smsendian_handle_message_header);
 104