* Eric Reed <ericr at reedhome.net>
*
* This is a collectd module for The Energy Detective: A low-cost whole
- * house energy monitoring system. For more DEBUGrmation on TED, see
+ * house energy monitoring system. For more information on TED, see
* http://theenergydetective.com
*
* This module was not created by Energy, Inc. nor is it supported by
- * them in any way. It was created using DEBUGrmation from two sources:
+ * them in any way. It was created using information from two sources:
* David Satterfield's TED module for Misterhouse, and Micah Dowty's TED
* Python Module.
- *
+ *
* This has only tested with the model 1001 RDU, with
* firmware version 9.01U. The USB port is uses the very common FTDI
* USB-to-serial chip, so the RDU will show up as a serial device on
# error "No applicable input method."
#endif
-
-
#define PKT_LENGTH 278
#define MAX_PKT 300
#define ESCAPE 0x10
int retry = 3; /* sometimes we receive garbadge */
-/* Initialize the input set*/
+ /* Initialize the input set*/
FD_ZERO(&input);
FD_SET(fd, &input);
-/* Initialize timout structure, set to 1 second */
-
+ /* Initialize timout structure, set to 1 second */
do
{
timeout.tv_sec = 2;
escape_flag = 0;
end_flag = 0;
package_length = 0;
- // clear out anything in the buffer
+ /* clear out anything in the buffer */
tcflush(fd, TCIFLUSH);
-
+
status = write (fd, pkt_request,sizeof(pkt_request));
DEBUG ("status of write %d",status);
if (status < 0)
{
- ERROR ("ted plugin: swrite failed.");
- return (-1);
+ ERROR ("ted plugin: swrite failed.");
+ return (-1);
}
-
-/* Loop until we find the end of the package */
+
+ /* Loop until we find the end of the package */
while (end_flag == 0)
- {
-/* check for timeout or input error*/
+ {
+ /* check for timeout or input error*/
status = select(fd+1, &input, NULL, NULL, &timeout);
if (status == 0) /* Timeout */
{
{
char errbuf[1024];
ERROR ("ted plugin: select failed: %s",
- sstrerror (errno, errbuf, sizeof (errbuf)));
+ sstrerror (errno, errbuf, sizeof (errbuf)));
break;
}
-
+
else
{
-/* find out how may bytes are in the input buffer*/
+ /* find out how may bytes are in the input buffer*/
ioctl(fd, FIONREAD, &byte);
DEBUG ("bytes in buffer %d",byte);
- if (byte <= 0)
+ if (byte <= 0)
{
continue;
- }
- // Read input buffer
+ }
+
sResultnum = read(fd, sResult, MAX_PKT);
DEBUG ("bytes read %d",sResultnum);
- //
- // packet filter loop
- //
- for (byte=0; byte< sResultnum; byte++)
+ /*
+ * packet filter loop
+ */
+ for (byte=0; byte< sResultnum; byte++)
{
sResultByte = sResult[byte];
- // was byte before escape
- if (escape_flag == 1)
+ /* was byte before escape */
+ if (escape_flag == 1)
{
escape_flag = 0;
- // escape escape = single escape
+ /* escape escape = single escape */
if ((sResultByte==ESCAPE) & (package_length > 0))
{
package_buffer[package_length] = ESCAPE;
- package_length++;
- }
+ package_length++;
+ }
else if (sResultByte==PKT_BEGIN)
{
package_length=0;
{
escape_flag = 1;
}
- // if we are in a package add byte to buffer
- // otherwise throw away
+ /* if we are in a package add byte to buffer
+ * otherwise throw away */
else if (package_length >= 0)
{
package_buffer[package_length] = sResultByte;
- package_length++;
+ package_length++;
}
}
}
}
DEBUG ("read package_length %d",package_length);
-
+
if (package_length != PKT_LENGTH)
{
INFO ("Not the correct package");
- // delay until next package is loaded into TED
- // TED is updated once per second
+ /* delay until next package is loaded into TED TED is updated once
+ * per second */
usleep (1000000);
continue;
- }
- //part of the DEBUG in the package
- //get KiloWatts at char 247 and 248
- //get Voltage at char 251 and 252
+ }
+
+ /* part of the info in the package get KiloWatts at char 247 and 248
+ * get Voltage at char 251 and 252 */
*kw = ((package_buffer[248] * 256) + package_buffer[247])*10.0;
DEBUG ("kw %f",*kw);
*voltage = ((package_buffer[252] * 256) + package_buffer[251])/10.0;
static int ted_init (void)
{
- int i;
- double kw;
- double voltage;
-
- if (device == NULL)
+ int i;
+ double kw;
+ double voltage;
+
+ if (device == NULL)
+ {
+ device = DEFAULT_DEVICE;
+ }
+
+ for (i = 0; i < 10; i++)
+ {
+ device[strlen(device)-1] = i + '0';
+
+ if ((fd = open(device, O_RDWR | O_NOCTTY | O_NDELAY | O_NONBLOCK)) <= 0)
+ {
+ DEBUG ("No device at fd %d", fd);
+ close (fd);
+ continue;
+ }
+ struct termios options;
+ /* Get the current options for the port... */
+ tcgetattr(fd, &options);
+ options.c_cflag = B19200 | CS8 | CSTOPB | CREAD | CLOCAL;
+ options.c_iflag = IGNBRK | IGNPAR;
+ options.c_oflag = 0;
+ options.c_lflag = 0;
+ options.c_cc[VTIME] = 20;
+ options.c_cc[VMIN] = 250;
+
+ /* Set the new options for the port... */
+ tcflush(fd, TCIFLUSH);
+ tcsetattr(fd, TCSANOW, &options);
+
+ if (ted_read_value (&kw,&voltage) != 0)
{
- device = DEFAULT_DEVICE;
+ DEBUG ("No device at fd %d", fd);
+ close (fd);
+ continue;
}
-
- for (i = 0; i < 10; i++)
- {
- device[strlen(device)-1] = i + '0';
- if ((fd = open(device, O_RDWR | O_NOCTTY | O_NDELAY | O_NONBLOCK)) <= 0)
- {
- DEBUG ("No device at fd %d", fd);
- close (fd);
- continue;
- }
- struct termios options;
- // Get the current options for the port...
- tcgetattr(fd, &options);
- options.c_cflag = B19200 | CS8 | CSTOPB | CREAD | CLOCAL;
- options.c_iflag = IGNBRK | IGNPAR;
- options.c_oflag = 0;
- options.c_lflag = 0;
- options.c_cc[VTIME] = 20;
- options.c_cc[VMIN] = 250;
-
- // Set the new options for the port...
- tcflush(fd, TCIFLUSH);
- tcsetattr(fd, TCSANOW, &options);
-
- if (ted_read_value (&kw,&voltage) != 0)
- {
- DEBUG ("No device at fd %d", fd);
- close (fd);
- continue;
- }
-
- INFO ("ted plugin: Device found at %s", device);
- return (0);
- }
+ INFO ("ted plugin: Device found at %s", device);
+ return (0);
+ }
- ERROR ("ted plugin: No device found");
- return (-1);
+ ERROR ("ted plugin: No device found");
+ return (-1);
}
-#undef LINE_LENGTH
static void ted_submit (char *type_instance, double value)
{
- value_t values[1];
- value_list_t vl = VALUE_LIST_INIT;
+ value_t values[1];
+ value_list_t vl = VALUE_LIST_INIT;
- values[0].gauge = value;
+ values[0].gauge = value;
- vl.values = values;
- vl.values_len = 1;
- sstrncpy (vl.host, hostname_g, sizeof (vl.host));
- sstrncpy (vl.plugin, "ted", sizeof (vl.plugin));
- sstrncpy (vl.type_instance, type_instance, sizeof (vl.type_instance));
- sstrncpy (vl.type, "ted", sizeof (vl.type));
+ vl.values = values;
+ vl.values_len = 1;
+ sstrncpy (vl.host, hostname_g, sizeof (vl.host));
+ sstrncpy (vl.plugin, "ted", sizeof (vl.plugin));
+ sstrncpy (vl.type_instance, type_instance, sizeof (vl.type_instance));
+ sstrncpy (vl.type, "ted", sizeof (vl.type));
- plugin_dispatch_values (&vl);
+ plugin_dispatch_values (&vl);
}
static int ted_config (const char *key, const char *value)
{
- if (strcasecmp ("Device", key) != 0)
- {
- return (-1);
- }
-
- sfree (device);
- device = sstrdup (value);
- return (0);
-
-} /* int ted_config */
+ if (strcasecmp ("Device", key) != 0)
+ {
+ return (-1);
+ }
+ sfree (device);
+ device = sstrdup (value);
+ return (0);
+} /* int ted_config */
static int ted_read (void)
{
- double kw;
- double voltage;
+ double kw;
+ double voltage;
- if (fd < 0)
- return (-1);
+ if (fd < 0)
+ return (-1);
- if (ted_read_value (&kw,&voltage) != 0)
- return (-1);
+ if (ted_read_value (&kw,&voltage) != 0)
+ return (-1);
- ted_submit ("ted_kw", kw);
- ted_submit ("ted_voltage", voltage);
- return (0);
+ ted_submit ("ted_kw", kw);
+ ted_submit ("ted_voltage", voltage);
+ return (0);
} /* int ted_read */
static int ted_shutdown (void)
{
- if (fd >= 0)
- {
- close (fd);
- fd = -1;
- }
+ if (fd >= 0)
+ {
+ close (fd);
+ fd = -1;
+ }
- return (0);
-}
+ return (0);
+} /* int ted_shutdown */
void module_register (void)
{
- plugin_register_config ("ted", ted_config,
- config_keys, config_keys_num);
- plugin_register_init ("ted", ted_init);
- plugin_register_read ("ted", ted_read);
- plugin_register_shutdown ("ted", ted_shutdown);
+ plugin_register_config ("ted", ted_config,
+ config_keys, config_keys_num);
+ plugin_register_init ("ted", ted_init);
+ plugin_register_read ("ted", ted_read);
+ plugin_register_shutdown ("ted", ted_shutdown);
} /* void module_register */
+
+/* vim: set sw=4 et : */
projects / collectd.git / commitdiff