//
// init slave to get really the beginning of the records
//
static int
init_slaves(mbus_handle *handle)
{
if (debug)
printf("%s: debug: sending init frame #1\n", __PRETTY_FUNCTION__);
if (mbus_send_ping_frame(handle, MBUS_ADDRESS_NETWORK_LAYER, 1) == -1)
{
return 0;
}
//
// resend SND_NKE, maybe the first get lost
//
if (debug)
printf("%s: debug: sending init frame #2\n", __PRETTY_FUNCTION__);
if (mbus_send_ping_frame(handle, MBUS_ADDRESS_NETWORK_LAYER, 1) == -1)
{
return 0;
}
return 1;
}
int ping_address(mbus_handle *handle, mbus_frame *reply, int address)
{
int i, ret = MBUS_RECV_RESULT_ERROR;
memset((void *)reply, 0, sizeof(mbus_frame));
for (i = 0; i <= handle->max_retry; i++)
{
if (debug)
{
printf("%d ", address);
fflush(stdout);
}
if (mbus_send_ping_frame(handle, address, 0) == -1)
{
fprintf(stderr,"Scan failed. Could not send ping frame: %s\n", mbus_error_str());
return MBUS_RECV_RESULT_ERROR;
}
ret = mbus_recv_frame(handle, reply);
if (ret != MBUS_RECV_RESULT_TIMEOUT)
{
return ret;
}
}
return ret;
}
//------------------------------------------------------------------------------
// Primary addressing scanning of mbus devices.
//------------------------------------------------------------------------------
int
main(int argc, char **argv)
{
mbus_handle *handle;
char *device;
int address, baudrate = 2400, timeout = 200;
fprintf(stderr, "Hello, welcome to mbus\n");
if (argc == 2)
{
device = argv[1];
}
else if (argc == 4 && strcmp(argv[1], "-b") == 0)
{
baudrate = atoi(argv[2]);
device = argv[3];
}
else if (argc == 4 && strcmp(argv[1], "-t") == 0)
{
timeout = atoi(argv[2]);
device = argv[3];
}
else if (argc == 6 && strcmp(argv[1], "-b") == 0 && strcmp(argv[3], "-t") == 0)
{
baudrate = atoi(argv[2]);
timeout = atoi(argv[4]);
device = argv[5];
}
else
{
fprintf(stderr, "usage: %s [-b BAUDRATE] [-t TIMEOUT] device\n", argv[0]);
return 0;
}
fprintf(stderr, "Going to use device %s at baud %d and timeout %d\n", device, baudrate, timeout);
if ((handle = mbus_connect_serial(device)) == NULL)
{
printf("Failed to setup connection to M-bus gateway\n");
return -1;
}
if (mbus_serial_set_baudrate(handle->m_serial_handle, baudrate) == -1)
{
printf("Failed to set baud rate.\n");
return -1;
}
if (mbus_serial_set_timeout(handle->m_serial_handle, timeout) == -1)
{
printf("Failed to set timeout.\n");
return -1;
}
for (address = 0; address < 254; address++)
{
mbus_frame reply;
memset((void *)&reply, 0, sizeof(mbus_frame));
if (mbus_send_ping_frame(handle, address) == -1)
{
printf("Scan failed. Could not send ping frame to handle %d and address %d: %s\n", handle, address, mbus_error_str());
continue;
// return -1;
}
if (mbus_recv_frame(handle, &reply) == -1)
{
printf("No reply address %d\n", address);
continue;
}
else {
printf("Got a reply\n");
mbus_hexdump((const char * )&reply, reply.length1);
}
int frame_type= mbus_frame_type(&reply);
if (frame_type == MBUS_FRAME_TYPE_ACK)
{
printf("Found a M-Bus device at address %d \n", address);
}
else
{
printf("not found addr:%d got frame type %d\n", address, frame_type);
}
}
mbus_disconnect(handle);
return 0;
}
//------------------------------------------------------------------------------
// Primary addressing scanning of mbus devices.
//------------------------------------------------------------------------------
int
main(int argc, char **argv)
{
mbus_handle *handle;
char *device;
int address, baudrate = 9600;
int ret;
if (argc == 2)
{
device = argv[1];
}
else if (argc == 3 && strcmp(argv[1], "-d") == 0)
{
debug = 1;
device = argv[2];
}
else if (argc == 4 && strcmp(argv[1], "-b") == 0)
{
baudrate = atoi(argv[2]);
device = argv[3];
}
else if (argc == 5 && strcmp(argv[1], "-d") == 0 && strcmp(argv[2], "-b") == 0)
{
debug = 1;
baudrate = atoi(argv[3]);
device = argv[4];
}
else
{
fprintf(stderr, "usage: %s [-d] [-b BAUDRATE] device\n", argv[0]);
return 0;
}
if (debug)
{
mbus_register_send_event(&mbus_dump_send_event);
mbus_register_recv_event(&mbus_dump_recv_event);
}
if ((handle = mbus_context_serial(device)) == NULL)
{
fprintf(stderr, "Could not initialize M-Bus context: %s\n", mbus_error_str());
return 1;
}
if (mbus_connect(handle) == -1)
{
printf("Failed to setup connection to M-bus gateway\n");
return 1;
}
if (mbus_serial_set_baudrate(handle, baudrate) == -1)
{
printf("Failed to set baud rate.\n");
return 1;
}
if (debug)
printf("Scanning primary addresses:\n");
for (address = 0; address <= 250; address++)
{
mbus_frame reply;
memset((void *)&reply, 0, sizeof(mbus_frame));
if (debug)
{
printf("%d ", address);
fflush(stdout);
}
if (mbus_send_ping_frame(handle, address, 0) == -1)
{
printf("Scan failed. Could not send ping frame: %s\n", mbus_error_str());
return 1;
}
ret = mbus_recv_frame(handle, &reply);
if (ret == MBUS_RECV_RESULT_TIMEOUT)
{
continue;
}
if (debug)
printf("\n");
if (ret == MBUS_RECV_RESULT_INVALID)
{
/* check for more data (collision) */
mbus_purge_frames(handle);
printf("Collision at address %d\n", address);
continue;
}
if (mbus_frame_type(&reply) == MBUS_FRAME_TYPE_ACK)
{
/* check for more data (collision) */
if (mbus_purge_frames(handle))
{
printf("Collision at address %d\n", address);
continue;
}
printf("Found a M-Bus device at address %d\n", address);
}
}
mbus_disconnect(handle);
mbus_context_free(handle);
return 0;
}
