1 files changed, 92 insertions, 0 deletions
diff --git a/drivers/media/common/siano/smsendian.c b/drivers/media/common/siano/smsendian.c
new file mode 100644
index 0000000000..a357381491
--- /dev/null
+++ b/drivers/media/common/siano/smsendian.c
@@ -0,0 +1,92 @@
+// 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;
+
+	switch (msg->x_msg_header.msg_type) {
+	case MSG_SMS_DATA_DOWNLOAD_REQ:
+	{
+		msg->msg_data[0] = le32_to_cpu((__force __le32)(msg->msg_data[0]));
+		break;
+	}
+
+	default:
+		msg_words = (msg->x_msg_header.msg_length -
+				sizeof(struct sms_msg_hdr))/4;
+
+		for (i = 0; i < msg_words; i++)
+			msg->msg_data[i] = le32_to_cpu((__force __le32)msg->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:
+	{
+		msg_words = (msg->x_msg_header.msg_length -
+				sizeof(struct sms_msg_hdr))/4;
+
+		for (i = 0; i < msg_words; i++)
+			msg->msg_data[i] = le32_to_cpu((__force __le32)msg->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);