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Rewriting the dlmstp for Linux to use sockets. In progress, not compiling.

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This commit is contained in:
skarg
2007-07-02 14:41:59 +00:00
parent 27f84b2a85
commit 5435d46621
3 changed files with 311 additions and 73 deletions
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bacnet-stack/ports/linux/mstp.c
+20 -9
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@@ -209,18 +209,19 @@ void MSTP_Create_And_Send_Frame(volatile struct mstp_port_struct_t *mstp_port,
uint8_t * data, /* any data to be sent - may be null */
unsigned data_len)
{ /* number of bytes of data (up to 501) */
uint8_t buffer[MAX_MPDU] = { 0 }; /* buffer for sending */
uint16_t len = 0; /* number of bytes to send */
len = (uint16_t) MSTP_Create_Frame(&buffer[0], /* where frame is loaded */
sizeof(buffer), /* amount of space available */
mstp_port->TxLength = (uint16_t) MSTP_Create_Frame(
&mstp_port->TxBuffer[0], /* where frame is loaded */
sizeof(mstp_port->TxBuffer), /* amount of space available */
frame_type, /* type of frame to send - see defines */
destination, /* destination address */
source, /* source address */
data, /* any data to be sent - may be null */
data_len); /* number of bytes of data (up to 501) */
RS485_Send_Frame(mstp_port, &buffer[0], len);
RS485_Send_Frame(
mstp_port,
&mstp_port->TxBuffer[0],
mstp_port->TxLength);
/* FIXME: be sure to reset SilenceTimer after each octet is sent! */
}
@@ -818,7 +819,12 @@ bool MSTP_Master_Node_FSM(volatile struct mstp_port_struct_t * mstp_port)
/* more data frames. These may be BACnet Data frames or */
/* proprietary frames. */
case MSTP_MASTER_STATE_USE_TOKEN:
if (!mstp_port->TxReady) {
mstp_port->TxLength = dlmstp_get_send(
mstp_port->This_Station,
&mstp_port->TxBuffer[0],
sizeof(mstp_port->TxBuffer),
5); /* milliseconds to wait for a packet */
if (mstp_port->TxLength < 1) {
/* NothingToSend */
mstp_port->FrameCount = mstp_port->Nmax_info_frames;
mstp_port->master_state = MSTP_MASTER_STATE_DONE_WITH_TOKEN;
@@ -827,7 +833,6 @@ bool MSTP_Master_Node_FSM(volatile struct mstp_port_struct_t * mstp_port)
/* if we missed our timing deadline, another token will be sent */
mstp_port->master_state = MSTP_MASTER_STATE_IDLE;
} else {
/* don't send it if we are too late in getting out */
uint8_t destination = mstp_port->TxBuffer[3];
RS485_Send_Frame(mstp_port,
(uint8_t *) & mstp_port->TxBuffer[0], mstp_port->TxLength);
@@ -1159,6 +1164,7 @@ bool MSTP_Master_Node_FSM(volatile struct mstp_port_struct_t * mstp_port)
case MSTP_MASTER_STATE_ANSWER_DATA_REQUEST:
/* FIXME: if we knew the APDU type received, we could
see if the next message was that same APDU type */
/* FIXME: we could always defer the reply to be safe */
if ((mstp_port->SilenceTimer <= Treply_delay) &&
mstp_port->TxReady) {
/* Reply */
@@ -1168,9 +1174,14 @@ bool MSTP_Master_Node_FSM(volatile struct mstp_port_struct_t * mstp_port)
/* (the mechanism used to determine this is a local matter), */
/* then call MSTP_Create_And_Send_Frame to transmit the reply frame */
/* and enter the IDLE state to wait for the next frame. */
mstp_port->TxLength = dlmstp_get_send(
mstp_port->This_Station,
&mstp_port->TxBuffer[0],
sizeof(mstp_port->TxBuffer),
5); /* milliseconds to wait for a packet */
if ((mstp_port->FrameType ==
FRAME_TYPE_BACNET_DATA_EXPECTING_REPLY)
&& (mstp_port->TxReady)) {
&& (mstp_port->TxLength > 0)) {
RS485_Send_Frame(mstp_port,
(uint8_t *) & mstp_port->TxBuffer[0],
mstp_port->TxLength);