1// SPDX-License-Identifier: GPL-2.0-or-later
2/****************************************************************
3
4 Siano Mobile Silicon, Inc.
5 MDTV receiver kernel modules.
6 Copyright (C) 2006-2009, Uri Shkolnik
7
8
9 ****************************************************************/
10
11#include <linux/export.h>
12#include <asm/byteorder.h>
13
14#include "smsendian.h"
15#include "smscoreapi.h"
16
17void smsendian_handle_tx_message(void *buffer)
18{
19#ifdef __BIG_ENDIAN
20 struct sms_msg_data *msg = buffer;
21 int i;
22 int msg_words;
23
24 switch (msg->x_msg_header.msg_type) {
25 case MSG_SMS_DATA_DOWNLOAD_REQ:
26 {
27 msg->msg_data[0] = le32_to_cpu((__force __le32)(msg->msg_data[0]));
28 break;
29 }
30
31 default:
32 msg_words = (msg->x_msg_header.msg_length -
33 sizeof(struct sms_msg_hdr))/4;
34
35 for (i = 0; i < msg_words; i++)
36 msg->msg_data[i] = le32_to_cpu((__force __le32)msg->msg_data[i]);
37
38 break;
39 }
40#endif /* __BIG_ENDIAN */
41}
42EXPORT_SYMBOL_GPL(smsendian_handle_tx_message);
43
44void smsendian_handle_rx_message(void *buffer)
45{
46#ifdef __BIG_ENDIAN
47 struct sms_msg_data *msg = (struct sms_msg_data *)buffer;
48 int i;
49 int msg_words;
50
51 switch (msg->x_msg_header.msg_type) {
52 case MSG_SMS_GET_VERSION_EX_RES:
53 {
54 struct sms_version_res *ver =
55 (struct sms_version_res *) msg;
56 ver->chip_model = le16_to_cpu((__force __le16)ver->chip_model);
57 break;
58 }
59
60 case MSG_SMS_DVBT_BDA_DATA:
61 case MSG_SMS_DAB_CHANNEL:
62 case MSG_SMS_DATA_MSG:
63 {
64 break;
65 }
66
67 default:
68 {
69 msg_words = (msg->x_msg_header.msg_length -
70 sizeof(struct sms_msg_hdr))/4;
71
72 for (i = 0; i < msg_words; i++)
73 msg->msg_data[i] = le32_to_cpu((__force __le32)msg->msg_data[i]);
74
75 break;
76 }
77 }
78#endif /* __BIG_ENDIAN */
79}
80EXPORT_SYMBOL_GPL(smsendian_handle_rx_message);
81
82void smsendian_handle_message_header(void *msg)
83{
84#ifdef __BIG_ENDIAN
85 struct sms_msg_hdr *phdr = (struct sms_msg_hdr *)msg;
86
87 phdr->msg_type = le16_to_cpu((__force __le16)phdr->msg_type);
88 phdr->msg_length = le16_to_cpu((__force __le16)phdr->msg_length);
89 phdr->msg_flags = le16_to_cpu((__force __le16)phdr->msg_flags);
90#endif /* __BIG_ENDIAN */
91}
92EXPORT_SYMBOL_GPL(smsendian_handle_message_header);
93

source code of linux/drivers/media/common/siano/smsendian.c