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This commit is contained in:
skarg
2006-08-13 00:57:17 +00:00
parent 5bb205dc03
commit a30d497669
41 changed files with 574 additions and 573 deletions
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bacnet-stack/ports/pic18/dlmstp.c
+196 -198
View File
@@ -1,198 +1,196 @@
/**************************************************************************
*
* Copyright (C) 2006 Steve Karg <skarg@users.sourceforge.net>
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*********************************************************************/
#include <stdbool.h>
#include <stdint.h>
#include <stddef.h>
#include <string.h>
#include "bacdef.h"
#include "mstp.h"
#include "dlmstp.h"
#include "rs485.h"
static DLMSTP_PACKET Receive_Buffer;
static DLMSTP_PACKET Transmit_Buffer;
volatile struct mstp_port_struct_t MSTP_Port; /* port data */
static uint8_t MSTP_MAC_Address = 0x05; /* local MAC address */
void dlmstp_init(void)
{
/* initialize buffer */
Receive_Buffer.ready = false;
Receive_Buffer.data_expecting_reply = false;
Receive_Buffer.pdu_len = 0;
/* initialize buffer */
Transmit_Buffer.ready = false;
Transmit_Buffer.data_expecting_reply = false;
Transmit_Buffer.pdu_len = 0;
/* initialize hardware */
RS485_Initialize();
MSTP_Init(&MSTP_Port, MSTP_MAC_Address);
}
void dlmstp_cleanup(void)
{
/* nothing to do for static buffers */
}
/* returns number of bytes sent on success, zero on failure */
int dlmstp_send_pdu(BACNET_ADDRESS * dest, /* destination address */
uint8_t * pdu, /* any data to be sent - may be null */
unsigned pdu_len)
{ /* number of bytes of data */
bool status;
int bytes_sent = 0;
if (Transmit_Buffer.ready == false)
{
/* FIXME: how do we get data_expecting_reply? */
Transmit_Buffer.data_expecting_reply = false;
Receive_Buffer.pdu_len = 0;
memmove(&Transmit_Buffer.address,dest,sizeof(Transmit_Buffer.address));
Transmit_Buffer.pdu_len = pdu_len;
/* FIXME: copy the whole PDU or just the pdu_len? */
memmove(Transmit_Buffer.pdu,pdu,sizeof(Transmit_Buffer.pdu));
bytes_sent = pdu_len;
Transmit_Buffer.ready = true;
}
return bytes_sent;
}
/* function for MS/TP to use to get a packet to transmit
returns the number of bytes in the packet, or zero if none. */
int dlmstp_get_transmit_pdu(BACNET_ADDRESS * dest, /* destination address */
uint8_t * pdu) /* any data to be sent - may be null */
{
bool status;
DLMSTP_PACKET *packet;
unsigned pdu_len = 0;
if (Transmit_Buffer.ready)
{
memmove(dest,&packet->address,sizeof(packet->address));
pdu_len = packet->pdu_len;
memmove(pdu,packet->pdu,sizeof(packet.pdu));
}
return pdu_len;
}
int dlmstp_set_transmit_pdu_ready(bool ready)
{
Transmit_Buffer.ready = ready;
}
void dlmstp_task(void)
{
RS485_Check_UART_Data(&MSTP_Port);
MSTP_Receive_Frame_FSM(&MSTP_Port);
RS485_Process_Tx_Message();
MSTP_Master_Node_FSM(&MSTP_Port);
}
/* called about once a millisecond */
void dlmstp_millisecond_timer(void)
{
MSTP_Millisecond_Timer(&MSTP_Port);
}
/* returns the number of octets in the PDU, or zero on failure */
/* This function is expecting to be polled. */
uint16_t dlmstp_receive(BACNET_ADDRESS * src, /* source address */
uint8_t * pdu, /* PDU data */
uint16_t max_pdu, /* amount of space available in the PDU */
unsigned timeout)
{
DLMSTP_PACKET *packet;
(void) timeout;
/* see if there is a packet available */
if (!Ringbuf_Empty(&Receive_Buffer))
{
packet = (char *)Ringbuf_Pop_Front(&Receive_Buffer);
memmove(src,&packet->address,sizeof(packet->address));
pdu_len = packet->pdu_len;
memmove(pdu,packet->pdu,max_pdu);
}
return pdu_len;
}
/* for the MS/TP state machine to use for putting received data */
uint16_t dlmstp_put_receive(BACNET_ADDRESS * src, /* source address */
uint8_t * pdu, /* PDU data */
uint16_t pdu_len)
{
bool status;
int bytes_put = 0;
memmove(&Temp_Packet.address,src,sizeof(Temp_Packet.address));
Temp_Packet.pdu_len = pdu_len;
memmove(Temp_Packet.pdu,pdu,sizeof(Temp_Packet.pdu));
status = Ringbuf_Put(&Receive_Buffer, &Temp_Packet);
if (status)
bytes_put = pdu_len;
return bytes_put;
}
void dlmstp_set_my_address(uint8_t mac_address)
{
/* FIXME: Master Nodes can only have address 1-127 */
MSTP_MAC_Address = mac_address;
return;
}
void dlmstp_get_my_address(BACNET_ADDRESS * my_address)
{
my_address->mac_len = 1;
my_address->mac[0] = MSTP_MAC_Address;
my_address->net = 0; /* local only, no routing */
my_address->len = 0;
for (i = 0; i < MAX_MAC_LEN; i++) {
my_address->adr[i] = 0;
}
return;
}
void dlmstp_get_broadcast_address(BACNET_ADDRESS * dest)
{ /* destination address */
int i = 0; /* counter */
if (dest) {
dest->mac_len = 1;
dest->mac[0] = MSTP_BROADCAST_ADDRESS;
dest->net = BACNET_BROADCAST_NETWORK;
dest->len = 0; /* len=0 denotes broadcast address */
for (i = 0; i < MAX_MAC_LEN; i++) {
dest->adr[i] = 0;
}
}
return;
}
/**************************************************************************
*
* Copyright (C) 2006 Steve Karg <skarg@users.sourceforge.net>
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*********************************************************************/
#include <stdbool.h>
#include <stdint.h>
#include <stddef.h>
#include <string.h>
#include "bacdef.h"
#include "mstp.h"
#include "dlmstp.h"
#include "rs485.h"
static DLMSTP_PACKET Receive_Buffer;
static DLMSTP_PACKET Transmit_Buffer;
volatile struct mstp_port_struct_t MSTP_Port; /* port data */
static uint8_t MSTP_MAC_Address = 0x05; /* local MAC address */
void dlmstp_init(void)
{
/* initialize buffer */
Receive_Buffer.ready = false;
Receive_Buffer.data_expecting_reply = false;
Receive_Buffer.pdu_len = 0;
/* initialize buffer */
Transmit_Buffer.ready = false;
Transmit_Buffer.data_expecting_reply = false;
Transmit_Buffer.pdu_len = 0;
/* initialize hardware */
RS485_Initialize();
MSTP_Init(&MSTP_Port, MSTP_MAC_Address);
}
void dlmstp_cleanup(void)
{
/* nothing to do for static buffers */
}
/* returns number of bytes sent on success, zero on failure */
int dlmstp_send_pdu(BACNET_ADDRESS * dest, /* destination address */
uint8_t * pdu, /* any data to be sent - may be null */
unsigned pdu_len)
{ /* number of bytes of data */
bool status;
int bytes_sent = 0;
if (Transmit_Buffer.ready == false) {
/* FIXME: how do we get data_expecting_reply? */
Transmit_Buffer.data_expecting_reply = false;
Receive_Buffer.pdu_len = 0;
memmove(&Transmit_Buffer.address, dest,
sizeof(Transmit_Buffer.address));
Transmit_Buffer.pdu_len = pdu_len;
/* FIXME: copy the whole PDU or just the pdu_len? */
memmove(Transmit_Buffer.pdu, pdu, sizeof(Transmit_Buffer.pdu));
bytes_sent = pdu_len;
Transmit_Buffer.ready = true;
}
return bytes_sent;
}
/* function for MS/TP to use to get a packet to transmit
returns the number of bytes in the packet, or zero if none. */
int dlmstp_get_transmit_pdu(BACNET_ADDRESS * dest, /* destination address */
uint8_t * pdu)
{ /* any data to be sent - may be null */
bool status;
DLMSTP_PACKET *packet;
unsigned pdu_len = 0;
if (Transmit_Buffer.ready) {
memmove(dest, &packet->address, sizeof(packet->address));
pdu_len = packet->pdu_len;
memmove(pdu, packet->pdu, sizeof(packet.pdu));
}
return pdu_len;
}
int dlmstp_set_transmit_pdu_ready(bool ready)
{
Transmit_Buffer.ready = ready;
}
void dlmstp_task(void)
{
RS485_Check_UART_Data(&MSTP_Port);
MSTP_Receive_Frame_FSM(&MSTP_Port);
RS485_Process_Tx_Message();
MSTP_Master_Node_FSM(&MSTP_Port);
}
/* called about once a millisecond */
void dlmstp_millisecond_timer(void)
{
MSTP_Millisecond_Timer(&MSTP_Port);
}
/* returns the number of octets in the PDU, or zero on failure */
/* This function is expecting to be polled. */
uint16_t dlmstp_receive(BACNET_ADDRESS * src, /* source address */
uint8_t * pdu, /* PDU data */
uint16_t max_pdu, /* amount of space available in the PDU */
unsigned timeout)
{
DLMSTP_PACKET *packet;
(void) timeout;
/* see if there is a packet available */
if (!Ringbuf_Empty(&Receive_Buffer)) {
packet = (char *) Ringbuf_Pop_Front(&Receive_Buffer);
memmove(src, &packet->address, sizeof(packet->address));
pdu_len = packet->pdu_len;
memmove(pdu, packet->pdu, max_pdu);
}
return pdu_len;
}
/* for the MS/TP state machine to use for putting received data */
uint16_t dlmstp_put_receive(BACNET_ADDRESS * src, /* source address */
uint8_t * pdu, /* PDU data */
uint16_t pdu_len)
{
bool status;
int bytes_put = 0;
memmove(&Temp_Packet.address, src, sizeof(Temp_Packet.address));
Temp_Packet.pdu_len = pdu_len;
memmove(Temp_Packet.pdu, pdu, sizeof(Temp_Packet.pdu));
status = Ringbuf_Put(&Receive_Buffer, &Temp_Packet);
if (status)
bytes_put = pdu_len;
return bytes_put;
}
void dlmstp_set_my_address(uint8_t mac_address)
{
/* FIXME: Master Nodes can only have address 1-127 */
MSTP_MAC_Address = mac_address;
return;
}
void dlmstp_get_my_address(BACNET_ADDRESS * my_address)
{
my_address->mac_len = 1;
my_address->mac[0] = MSTP_MAC_Address;
my_address->net = 0; /* local only, no routing */
my_address->len = 0;
for (i = 0; i < MAX_MAC_LEN; i++) {
my_address->adr[i] = 0;
}
return;
}
void dlmstp_get_broadcast_address(BACNET_ADDRESS * dest)
{ /* destination address */
int i = 0; /* counter */
if (dest) {
dest->mac_len = 1;
dest->mac[0] = MSTP_BROADCAST_ADDRESS;
dest->net = BACNET_BROADCAST_NETWORK;
dest->len = 0; /* len=0 denotes broadcast address */
for (i = 0; i < MAX_MAC_LEN; i++) {
dest->adr[i] = 0;
}
}
return;
}
bacnet-stack/ports/pic18/main.c
+3 -2
View File
@@ -52,8 +52,9 @@
static uint8_t Temp_Buf[MAX_APDU];
/* buffer used for receiving */
static uint8_t Rx_Buf[MAX_MPDU] = { 0 };
/* address where message came from */
static BACNET_ADDRESS src;
static BACNET_ADDRESS src;
/* address used to send */
static BACNET_ADDRESS my_address;
@@ -170,7 +171,7 @@ void main(void)
Device_Set_Object_Instance_Number(5);
dlmstp_set_my_address(0x05);
dlmstp_init();
init_hardware();
/* broadcast an I-Am on startup */
bacnet-stack/ports/pic18/rs485.c
+1 -1
View File
@@ -50,7 +50,7 @@ static struct {
/* Duplicate of the RCSTA reg used due to the double buffering of the */
/* fifo. Reading the RCREG reg will cause the second RCSTA reg to be */
/* loaded if there is one. */
struct _rcstabits {
struct _rcstabits {
unsigned char RX9D:1;
unsigned char OERR:1;
unsigned char FERR:1;