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reworked com stack.

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- prepared for use of CRC8
- organized code in more files
- recv stats message now contains crc errors and io errors
This commit is contained in:
Martin Preuss
2023-04-07 19:13:54 +02:00
parent 3bb867ed21
commit 4e1f08b567
22 changed files with 1326 additions and 1161 deletions
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30
aqhome/msg/msg_node.c
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@@ -17,7 +17,7 @@
static uint8_t _calcChecksum(const uint8_t *ptr, uint8_t len);
static uint8_t _calcXorChecksum(const uint8_t *ptr, uint8_t len);
@@ -105,7 +105,7 @@ int AQH_NodeMsg_IsMsgComplete(const GWEN_MSG *msg)
int AQH_NodeMsg_IsChecksumValid(const GWEN_MSG *msg)
{
if (msg && AQH_NodeMsg_IsMsgComplete(msg))
return (_calcChecksum(GWEN_Msg_GetConstBuffer(msg), GWEN_Msg_GetBytesInBuffer(msg))==0)?1:0;
return (_calcXorChecksum(GWEN_Msg_GetConstBuffer(msg), GWEN_Msg_GetBytesInBuffer(msg))==0)?1:0;
return 0;
}
@@ -116,7 +116,7 @@ int AQH_NodeMsg_AddChecksum(GWEN_MSG *msg)
if (msg) {
int rv;
rv=GWEN_Msg_AddByte(msg, _calcChecksum(GWEN_Msg_GetConstBuffer(msg), GWEN_Msg_GetBytesInBuffer(msg)));
rv=GWEN_Msg_AddByte(msg, _calcXorChecksum(GWEN_Msg_GetConstBuffer(msg), GWEN_Msg_GetBytesInBuffer(msg)));
if (rv<0) {
DBG_INFO(NULL, "here (%d)", rv);
return rv;
@@ -171,7 +171,7 @@ uint32_t AQH_NodeMsg_GetMsgGroup(uint8_t msgType)
uint8_t _calcChecksum(const uint8_t *ptr, uint8_t len)
uint8_t _calcXorChecksum(const uint8_t *ptr, uint8_t len)
{
int i;
uint8_t x=0;
@@ -185,4 +185,26 @@ uint8_t _calcChecksum(const uint8_t *ptr, uint8_t len)
uint8_t _calcCrc8Checksum(const uint8_t *ptr, uint8_t len)
{
int i;
uint8_t x=0xff;
for (i=0; i<len; i++, ptr++) {
int j;
x^=*ptr;
for (j=0; j<8; j++) {
if (x & 0x80)
x=(uint8_t) (x<<1)^0x97;
else
x<<=1;
}
}
return x;
}