#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include <math.h>
#include <time.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <netdb.h>
#include <ctype.h>
#include "midas.h"

Include dependency graph for lemplug.c:

Data Structures
struct	LEMPLUG_SETTINGS
	device specific information stored in the DD ODB More...

struct	LEMPLUG_INFO
	This structure contains private variables for the device driver. More...

Macros
#define	closesocket(s) close(s)

#define	LEMPLUG_MAX_READ 5
	maximal number of attempts to read More...

#define	LEMPLUG_SUCCESS 0

#define	LEMPLUG_NOSUCCESS -1

#define	LEMPLUG_STARTUP_ERROR -2

#define	LEMPLUG_NO_HOST_ERROR -3

#define	LEMPLUG_CONNECT_ERROR -4

#define	LEMPLUG_SETTINGS_STR "\Enable Log = INT : 0\n\Log = STRING : [64]\n\Read Time = DWORD : 5\n\Host = STRING : [32]\n\Port = INT : 23\n\User Name = STRING : [32]\n\Pwd = STRING : [32]\n\Firmware Tag = INT : 0\n\"
	Initializing string for the struct LEMPLUG_SETTINGS. More...

Functions
void	lemplug_base64_encode (char s, char d)

INT	lemplug_strip_whitespace (char *str)

void	lemplug_write_log (LEMPLUG_INFO info, char log)

INT	lemplug_cmd_0 (LEMPLUG_INFO *info)

INT	lemplug_read_0 (LEMPLUG_INFO *info)

INT	lemplug_cmd_1 (LEMPLUG_INFO *info)

INT	lemplug_cmd_2 (LEMPLUG_INFO *info)

INT	lemplug_init (HNDLE hkey, void *pinfo, INT channels, INT(bd)(INT cmd,...))

INT	lemplug_exit (LEMPLUG_INFO *info)

INT	lemplug_set (LEMPLUG_INFO *info, INT channel, float value)

INT	lemplug_get (LEMPLUG_INFO info, INT channel, float pvalue)

INT	lemplug_get_label (LEMPLUG_INFO info, INT channel, char name)

INT	lemplug (INT cmd,...)

Variables
char *	map = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"

char	request [10000]

char	response [10000]

Macro Definition Documentation

#define closesocket ( s ) close(s)

Definition at line 26 of file lemplug.c.

Referenced by lemplug_cmd_0(), lemplug_cmd_1(), lemplug_cmd_2(), and lemplug_read_0().

#define LEMPLUG_CONNECT_ERROR -4

Definition at line 34 of file lemplug.c.

Referenced by lemplug_cmd_0(), lemplug_cmd_1(), lemplug_cmd_2(), and lemplug_read_0().

#define LEMPLUG_MAX_READ 5

maximal number of attempts to read

Definition at line 28 of file lemplug.c.

#define LEMPLUG_NO_HOST_ERROR -3

Definition at line 33 of file lemplug.c.

Referenced by lemplug_cmd_0(), lemplug_cmd_1(), lemplug_cmd_2(), and lemplug_read_0().

#define LEMPLUG_NOSUCCESS -1

Definition at line 31 of file lemplug.c.

Referenced by lemplug_cmd_0(), lemplug_cmd_1(), lemplug_cmd_2(), and lemplug_read_0().

#define LEMPLUG_SETTINGS_STR "\Enable Log = INT : 0\n\Log = STRING : [64]\n\Read Time = DWORD : 5\n\Host = STRING : [32]\n\Port = INT : 23\n\User Name = STRING : [32]\n\Pwd = STRING : [32]\n\Firmware Tag = INT : 0\n\"

Initializing string for the struct LEMPLUG_SETTINGS.

Definition at line 51 of file lemplug.c.

Referenced by lemplug_init().

#define LEMPLUG_STARTUP_ERROR -2

Definition at line 32 of file lemplug.c.

Referenced by lemplug_get().

#define LEMPLUG_SUCCESS 0

Definition at line 30 of file lemplug.c.

Function Documentation

INT lemplug	(	INT	cmd,
			...
	)

The lemplug device driver handles the communication between the ePowerSwitch M8 (Leunig GmbH) and midas.

Definition at line 865 of file lemplug.c.

References hKey, info, lemplug_exit(), lemplug_get(), lemplug_get_label(), lemplug_init(), and lemplug_set().

void lemplug_base64_encode	(	char *	s,
		char *	d
	)

base 64 encoding routine (from S. Ritt).

Parameters

s	input string.
d	base64 encoded output string.

Definition at line 88 of file lemplug.c.

References map.

Referenced by lemplug_get(), lemplug_init(), and lemplug_set().

INT lemplug_cmd_0 ( LEMPLUG_INFO * info )

sends a command to the ePowerSwitch M8 and reads the response to it.

return:

string length of the response command
negative error code otherwise

Parameters

info	is a pointer to the DD specific info structure

Definition at line 184 of file lemplug.c.

References closesocket, LEMPLUG_INFO::dd_settings, LEMPLUG_SETTINGS::host, LEMPLUG_CONNECT_ERROR, LEMPLUG_NO_HOST_ERROR, LEMPLUG_NOSUCCESS, LEMPLUG_SETTINGS::port, request, and response.

Referenced by lemplug_init(), and lemplug_set().

INT lemplug_cmd_1 ( LEMPLUG_INFO * info )

sets and/or reads the current state of the ePowerSwitch M8+R2.

return:

string length of the response
negative error code otherwise

Parameters

info	is a pointer to the DD specific info structure

Definition at line 360 of file lemplug.c.

References closesocket, LEMPLUG_INFO::dd_settings, LEMPLUG_SETTINGS::host, LEMPLUG_CONNECT_ERROR, LEMPLUG_NO_HOST_ERROR, LEMPLUG_NOSUCCESS, LEMPLUG_INFO::outlet_state, LEMPLUG_SETTINGS::port, request, and response.

Referenced by lemplug_get(), and lemplug_set().

INT lemplug_cmd_2 ( LEMPLUG_INFO * info )

sets and/or reads the current state of the ePowerSwitch M8+R1.

return:

string length of the response
negative error code otherwise

Parameters

info	is a pointer to the DD specific info structure

Definition at line 465 of file lemplug.c.

References closesocket, LEMPLUG_INFO::dd_settings, LEMPLUG_SETTINGS::host, LEMPLUG_CONNECT_ERROR, LEMPLUG_NO_HOST_ERROR, LEMPLUG_NOSUCCESS, LEMPLUG_INFO::outlet_state, LEMPLUG_SETTINGS::port, request, and response.

Referenced by lemplug_get(), and lemplug_set().

INT lemplug_exit ( LEMPLUG_INFO * info )

quits the bus driver and free's the memory allocated for the info structure.

return: FE_SUCCESS

Parameters

info	is a pointer to the DD specific info structure

Definition at line 673 of file lemplug.c.

References LEMPLUG_INFO::bd, and LEMPLUG_INFO::bd_info.

Referenced by lemplug().

INT lemplug_get	(	LEMPLUG_INFO *	info,
		INT	channel,
		float *	pvalue
	)

reads the current state of the ePowerSwitch M8. This is done only in some rather slow time intervalls given by read_time in the DD, in order to keep the network traffic low.

return: FE_SUCCESS

Parameters

info	is a pointer to the DD specific info structure
channel	device channel number
pvalue	read back value

Definition at line 781 of file lemplug.c.

References LEMPLUG_INFO::dd_settings, LEMPLUG_SETTINGS::enable_log, LEMPLUG_SETTINGS::firmware_tag, lemplug_base64_encode(), lemplug_cmd_1(), lemplug_cmd_2(), lemplug_read_0(), LEMPLUG_STARTUP_ERROR, lemplug_write_log(), LEMPLUG_INFO::outlet_state, LEMPLUG_SETTINGS::pwd, LEMPLUG_SETTINGS::read_time, LEMPLUG_INFO::read_time_stamp, request, response, LEMPLUG_INFO::startup_error, and LEMPLUG_SETTINGS::user_name.

Referenced by lemplug().

INT lemplug_get_label	(	LEMPLUG_INFO *	info,
		INT	channel,
		char *	name
	)

Gets the names of the various outlets from the ePowerSwitch M8 and hands it over to the midas system.

return: FE_SUCCESS

Parameters

info	is a pointer to the DD specific info structure
channel	device channel number
name	of the power outlet

Definition at line 858 of file lemplug.c.

Referenced by lemplug().

INT lemplug_init	(	HNDLE	hkey,
		void **	pinfo,
		INT	channels,
		INT(*)(INT cmd,...)	bd
	)

Initializes the lemplug device driver, i.e. generates all the necessary structures in the ODB if necessary, initializes the bus driver and the ePowerSwitch M8.

return:

FE_SUCCESS if everything is OK
FE_ERR_ODB in case of a severe error

Parameters

hkey	is the device driver handle given from the class driver
pinfo	is needed to store the internal info structure
channels	is the number of channels of the device (from the class driver)
bd	is a pointer to the bus driver

Definition at line 575 of file lemplug.c.

References LEMPLUG_INFO::bd, LEMPLUG_INFO::bd_info, LEMPLUG_INFO::dd_settings, LEMPLUG_SETTINGS::enable_log, LEMPLUG_SETTINGS::firmware_tag, hDB, LEMPLUG_INFO::hkey, info, lemplug_base64_encode(), lemplug_cmd_0(), LEMPLUG_SETTINGS_STR, lemplug_write_log(), LEMPLUG_INFO::num_channels, LEMPLUG_SETTINGS::pwd, LEMPLUG_SETTINGS::read_time, LEMPLUG_INFO::read_time_stamp, request, response, LEMPLUG_INFO::startup_error, and LEMPLUG_SETTINGS::user_name.