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writing calibrations to a file should be useable now

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This commit is contained in:
Frank Mori Hess 2003-02-04 18:21:07 +00:00
parent a59ba8a07c
commit def13891a2
2 changed files with 67 additions and 20 deletions
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25
comedi_calibrate/calib.h
View file

@ -190,6 +190,31 @@ typedef struct{
int new_sv_measure(comedi_t *dev, new_sv_t *sv);
int new_sv_init(new_sv_t *sv,comedi_t *dev,int subdev,unsigned int chanspec);
/* saving calibrations to file */
#define CAL_MAX_CHANNELS_LENGTH 128
#define CAL_MAX_RANGES_LENGTH 128
#define CAL_MAX_AREFS_LENGTH 16
typedef struct
{
unsigned int subdevice;
caldac_t caldacs[ N_CALDACS ];
unsigned int caldacs_length;
/* channels that caldac settings are restricted to */
int channels[ CAL_MAX_CHANNELS_LENGTH ];
/* number of elements in channels array, 0 means allow all channels */
unsigned int channels_length;
/* ranges that caldac settings are restricted to */
int ranges[ CAL_MAX_RANGES_LENGTH ];
/* number of elements in ranges array, 0 means allow all ranges */
unsigned int ranges_length;
/* arefs that caldac settings are used restricted to */
int arefs[ CAL_MAX_AREFS_LENGTH ];
/* number of elements in arefs array, 0 means allow any aref */
unsigned int arefs_length;
} saved_calibration_t;
int write_calibration_file( comedi_t *dev, saved_calibration_t settings[],
unsigned int num_settings );
#endif

62
comedi_calibrate/save_cal.c
View file

@ -29,23 +29,6 @@ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#include "calib.h"
#define CAL_MAX_CHANNELS_LENGTH 1024
#define CAL_MAX_RANGES_LENGTH 128
#define CAL_MAX_AREFS_LENGTH 16
struct calibration_setting
{
unsigned int subdevice;
caldac_t caldacs[ N_CALDACS ];
unsigned int caldacs_length;
int channels[ CAL_MAX_CHANNELS_LENGTH ]; /* channels that caldac settings are restricted to */
unsigned int channels_length; /* number of elements in channels array, 0 means allow all channels */
int ranges[ CAL_MAX_RANGES_LENGTH ]; /* ranges that caldac settings are restricted to */
unsigned int ranges_length;/* number of elements in ranges array, 0 means allow all ranges */
int arefs[ CAL_MAX_AREFS_LENGTH ]; /* arefs that caldac settings are used restricted to */
unsigned int arefs_length; /* number of elements in arefs array, 0 means allow any aref */
};
int get_inode( comedi_t *dev, ino_t *inode )
{
struct stat file_stats;
@ -75,7 +58,7 @@ void write_caldac( FILE *file, caldac_t caldac )
fprintf( file, "}" );
}
void write_calibration_setting( FILE *file, struct calibration_setting setting )
void write_calibration_setting( FILE *file, saved_calibration_t setting )
{
static const char *indent = "\t\t";
int i;
@ -112,8 +95,8 @@ void write_calibration_setting( FILE *file, struct calibration_setting setting )
fprintf( file, "}" );
}
int write_calibration_file( FILE *file, comedi_t *dev,
struct calibration_setting settings[], unsigned int num_settings )
int write_calibration_perl_hash( FILE *file, comedi_t *dev,
saved_calibration_t settings[], unsigned int num_settings )
{
ino_t inode;
int retval;
@ -135,3 +118,42 @@ int write_calibration_file( FILE *file, comedi_t *dev,
return 0;
}
int write_calibration_file( comedi_t *dev, saved_calibration_t settings[],
unsigned int num_settings )
{
FILE *file;
int retval;
static const char *save_dir = "/etc/comedi/calibrations";
char file_path[ 100 ];
char command[ 100 ];
struct stat file_stats;
if( fstat( comedi_fileno( dev ), &file_stats ) < 0 )
{
fprintf( stderr, "failed to get dev_t of comedi device file\n" );
return -1;
}
snprintf( command, sizeof( command ), "install -d %s", save_dir );
if( system( command ) )
{
fprintf( stderr, "failed to create directory %s\n", save_dir );
return -1;
}
snprintf( file_path, sizeof( file_path ), "%s/comedi_0x%lx",
save_dir, ( unsigned long ) file_stats.st_dev );
file = fopen( file_path, "w" );
if( file == NULL )
{
fprintf( stderr, "failed to open file %s for writing\n", file_path );
return -1;
}
retval = write_calibration_perl_hash( file, dev, settings, num_settings );
fclose( file );
return retval;
}