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 
smsendian_handle_tx_message(void * buffer)17 void smsendian_handle_tx_message(void *buffer)
18 {
19 #ifdef __BIG_ENDIAN
20 	struct sms_msg_data *msg = (struct sms_msg_data *)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 }
42 EXPORT_SYMBOL_GPL(smsendian_handle_tx_message);
43 
smsendian_handle_rx_message(void * buffer)44 void 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 }
80 EXPORT_SYMBOL_GPL(smsendian_handle_rx_message);
81 
smsendian_handle_message_header(void * msg)82 void 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 }
92 EXPORT_SYMBOL_GPL(smsendian_handle_message_header);
93