From b9fc5fed91512208d861e287b1369f3122861144 Mon Sep 17 00:00:00 2001 From: David Phillips Date: Wed, 20 Jan 2016 14:03:21 +1300 Subject: Initial import --- packet.h | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 packet.h (limited to 'packet.h') 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 -- cgit v1.1