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This commit is contained in:
Mark Qvist 2015-05-21 10:42:03 +02:00
parent 9fcfa4de63
commit 5fd79a3e82
3 changed files with 16 additions and 105 deletions
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6
protocol/KISS.c
View file

@ -4,7 +4,7 @@
#include "device.h"
#include "KISS.h"
static uint8_t serialBuffer[LLP_MAX_FRAME_LENGTH]; // Buffer for holding incoming serial data
static uint8_t serialBuffer[LLP_MAX_DATA_SIZE]; // Buffer for holding incoming serial data
LLPCtx *llpCtx;
Afsk *channel;
Serial *serial;
@ -103,7 +103,7 @@ void kiss_serialCallback(uint8_t sbyte) {
timeout_ticks = timer_clock();
IN_FRAME = true;
serialBuffer[frame_len++] = sbyte;
if (frame_len >= LLP_MAX_FRAME_LENGTH) kiss_checkTimeout(true);
if (frame_len >= LLP_MAX_DATA_SIZE) kiss_checkTimeout(true);
#else
if (IN_FRAME && sbyte == FEND && command == CMD_DATA) {
IN_FRAME = false;
@ -112,7 +112,7 @@ void kiss_serialCallback(uint8_t sbyte) {
IN_FRAME = true;
command = CMD_UNKNOWN;
frame_len = 0;
} else if (IN_FRAME && frame_len < LLP_MAX_FRAME_LENGTH) {
} else if (IN_FRAME && frame_len < LLP_MAX_DATA_SIZE) {
// Have a look at the command byte first
if (frame_len == 0 && command == CMD_UNKNOWN) {
// MicroModem supports only one HDLC port, so we

4
protocol/LLP.h
View file

@ -9,10 +9,10 @@
#define LLP_INTERLEAVE_SIZE 12
#define LLP_MIN_FRAME_LENGTH LLP_INTERLEAVE_SIZE
#define LLP_MAX_FRAME_LENGTH 65 * LLP_INTERLEAVE_SIZE
#define LLP_MAX_FRAME_LENGTH 67 * LLP_INTERLEAVE_SIZE
#define LLP_HEADER_SIZE 10
#define LLP_CHECKSUM_SIZE 2
#define LLP_MAX_DATA_SIZE LLP_MAX_FRAME_LENGTH - LLP_HEADER_SIZE - LLP_CHECKSUM_SIZE // TODO: this is not right
#define LLP_MAX_DATA_SIZE LLP_MAX_FRAME_LENGTH - LLP_HEADER_SIZE - LLP_CHECKSUM_SIZE
#define LLP_DATA_BLOCK_SIZE ((LLP_INTERLEAVE_SIZE/3)*2)
#define LLP_CRC_SIZE 2