Initial import

1 files changed, 32 insertions, 0 deletions

diff --git a/packet.h b/packet.h
new file mode 100644
index 0000000..4850cb6
--- /dev/null
+++ b/packet.h
@@ -0,0 +1,32 @@
+#ifndef PACKET_H
+#define PACKET_H
+
+#define MISC_ACK				0x06
+
+/*#define REQUEST_TYPE_VAR		0x4D56 // VM
+#define REQUEST_TYPE_PICTURE	0x4350 // PC
+#define REQUEST_TYPE_LIST		0x544C // LT
+#define REQUEST_TYPE_MATRIX		0x544D // MT
+*/
+
+#define PKT_HEADER_MAX_SIZE		50
+
+
+enum packet_types
+{
+	PKT_END,
+	PKT_VALUE_HEADER,
+	PKT_SCREEN_HEADER_BW,
+	PKT_SCREEN_HEADER_COL,
+	PKT_BACKUP_HEADER,
+	PKT_PROGRAM_HEADER,
+	PKT_FUNCTION_HEADER,
+	PKT_VAL,
+	PKT_UNKNOWN
+};
+
+unsigned char calculate_checksum(const char *start, const char *stop);
+unsigned short calculate_checksum_word(const char *start, const char *stop);
+enum packet_types get_packet_type(const unsigned char* data);
+
+#endif