// SPDX-License-Identifier: GPL-2.0-or-later
/****************************************************************

 Siano Mobile Silicon, Inc.
 MDTV receiver kernel modules.
 Copyright (C) 2006-2009, Uri Shkolnik


 ****************************************************************/

#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 = buffer;
        int i;
        int msg_words;
        u32 *msg_data = &msg->msg_data;

        switch (msg->x_msg_header.msg_type) {
        case MSG_SMS_DATA_DOWNLOAD_REQ:
        {
                msg->msg_data = le32_to_cpu((__force __le32)(msg->msg_data));
                break;
        }

        default:
                msg_words = (msg->x_msg_header.msg_length -
                                sizeof(struct sms_msg_hdr))/4;

                for (i = 0; i < msg_words; i++)
                        msg_data[i] = le32_to_cpu((__force __le32)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((__force __le16)ver->chip_model);
                break;
        }

        case MSG_SMS_DVBT_BDA_DATA:
        case MSG_SMS_DAB_CHANNEL:
        case MSG_SMS_DATA_MSG:
        {
                break;
        }

        default:
        {
                u32 *msg_data = &msg->msg_data;
                msg_words = (msg->x_msg_header.msg_length -
                                sizeof(struct sms_msg_hdr))/4;

                for (i = 0; i < msg_words; i++)
                        msg_data[i] = le32_to_cpu((__force __le32)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((__force __le16)phdr->msg_type);
        phdr->msg_length = le16_to_cpu((__force __le16)phdr->msg_length);
        phdr->msg_flags = le16_to_cpu((__force __le16)phdr->msg_flags);
#endif /* __BIG_ENDIAN */
}
EXPORT_SYMBOL_GPL(smsendian_handle_message_header);