* (at your option) any later version. *
* *
***************************************************************************/
-/*
- TODO:
- read calibration voltage targets from eeprom
- calibrate all possible ranges and save to file
-*/
#define _GNU_SOURCE
#include <stdlib.h>
#include <string.h>
#include <stdint.h>
+#include <assert.h>
#include "calib.h"
static const int num_boards = ( sizeof(boards) / sizeof(boards[0]) );
-enum observables_60xx {
- OBS_0V_RANGE_10V_BIP_60XX = 0,
- OBS_5V_RANGE_10V_BIP_60XX,
-};
-
enum observables_64xx {
OBS_0V_RANGE_10V_BIP_64XX = 0,
OBS_7V_RANGE_10V_BIP_64XX,
OBS_7V_RANGE_10V_BIP_1602_16,
};
+enum calibration_source_60xx
+{
+ CS_60XX_GROUND = 0,
+ CS_60XX_10V = 1,
+ CS_60XX_5V = 2,
+ CS_60XX_500mV = 3,
+ CS_60XX_50mV = 4,
+ CS_60XX_UNUSED = 5, // 0V
+ CS_60XX_DAC0 = 6,
+ CS_60XX_DAC1 = 7,
+};
+
int cb_setup( calibration_setup_t *setup, const char *device_name )
{
unsigned int i;
return 0;
}
-int init_observables_60xx( calibration_setup_t *setup )
+unsigned int high_observable_index_60xx( unsigned int ai_range )
+{
+ return ai_range * 2 + 1;
+}
+
+unsigned int ground_observable_index_60xx( unsigned int ai_range )
+{
+ return ai_range * 2;
+}
+
+int ai_cal_src_voltage_60xx( calibration_setup_t *setup,
+ unsigned int calibration_source, float *voltage )
{
- comedi_insn tmpl;//, po_tmpl;
- observable *o;
- int retval;
- float target;
enum source_eeprom_addr
{
EEPROM_10V_CHAN = 0x30,
EEPROM_5V_CHAN = 0x32,
EEPROM_500mV_CHAN = 0x38,
EEPROM_50mV_CHAN = 0x3e,
- EEPROM_8mV_CHAN = 0x40,
+ EEPROM_8mV_CHAN = 0x40, // bogus?
};
- enum calibration_source
+ int retval;
+
+ switch( calibration_source )
{
- CAL_SRC_GROUND = 0,
- CAL_SRC_10V = 1,
- CAL_SRC_5V = 2,
- CAL_SRC_500mV = 3,
- CAL_SRC_50mV = 4,
- CAL_SRC_5mV = 5, // XXX check
- CAL_SRC_DAC0 = 6,
- CAL_SRC_DAC1 = 7,
- };
+ case CS_60XX_GROUND:
+ *voltage = 0.0;
+ retval = 0;
+ break;
+ case CS_60XX_10V:
+ retval = actual_source_voltage( setup->dev, setup->eeprom_subdev,
+ EEPROM_10V_CHAN, voltage );
+ break;
+ case CS_60XX_5V:
+ retval = actual_source_voltage( setup->dev, setup->eeprom_subdev,
+ EEPROM_5V_CHAN, voltage );
+ break;
+ case CS_60XX_500mV:
+ retval = actual_source_voltage( setup->dev, setup->eeprom_subdev,
+ EEPROM_500mV_CHAN, voltage );
+ break;
+ case CS_60XX_50mV:
+ retval = actual_source_voltage( setup->dev, setup->eeprom_subdev,
+ EEPROM_50mV_CHAN, voltage );
+ break;
+ default:
+ fprintf( stderr, "invalid calibration_source in ai_cal_src_voltage_60xx()\n" );
+ retval = -1;
+ break;
+ }
+ return retval;
+}
+
+int high_ai_cal_src_60xx( calibration_setup_t *setup, unsigned int ai_range )
+{
+ comedi_range *range;
+
+ range = comedi_get_range( setup->dev, setup->ad_subdev, 0, ai_range );
+ if( range == NULL ) return -1;
+
+ if( range->max > 9.999 )
+ return CS_60XX_10V;
+ else if( range->max > 4.999 )
+ return CS_60XX_5V;
+ else if( range->max > 0.4999 )
+ return CS_60XX_500mV;
+ else if( range->max > 0.04999 )
+ return CS_60XX_50mV;
+
+ return -1;
+}
+
+int init_observables_60xx( calibration_setup_t *setup )
+{
+ comedi_insn tmpl;//, po_tmpl;
+ observable *o;
+ int retval, num_ranges, i;
+ float target;
+ static const int CAL_SRC_GROUND = 0;
#if 0
memset( &po_tmpl, 0, sizeof(po_tmpl) );
po_tmpl.insn = INSN_CONFIG;
tmpl.insn = INSN_READ;
tmpl.n = 1;
tmpl.subdev = setup->ad_subdev;
+ setup->n_observables = 0;
- o = setup->observables + OBS_0V_RANGE_10V_BIP_60XX;
- o->name = "ground calibration source, 10V bipolar range, ground referenced";
- o->reference_source = CAL_SRC_GROUND;
- o->observe_insn = tmpl;
- o->observe_insn.chanspec = CR_PACK( 0, 0, AREF_GROUND) | CR_ALT_SOURCE | CR_ALT_FILTER;
- o->target = 0.0;
+ num_ranges = comedi_get_n_ranges( setup->dev, setup->ad_subdev, 0 );
+ if( num_ranges < 0 ) return -1;
- o = setup->observables + OBS_5V_RANGE_10V_BIP_60XX;
- o->name = "5V calibration source, 10V bipolar range, ground referenced";
- o->reference_source = CAL_SRC_5V;
- o->observe_insn = tmpl;
- o->observe_insn.chanspec = CR_PACK( 0, 0, AREF_GROUND) | CR_ALT_SOURCE | CR_ALT_FILTER;
- o->target = 5.0;
- retval = actual_source_voltage( setup->dev, setup->eeprom_subdev, EEPROM_5V_CHAN, &target );
- if( retval == 0 )
+ for( i = 0; i < num_ranges; i++ )
+ {
+ o = setup->observables + ground_observable_index_60xx( i );
+ o->reference_source = CAL_SRC_GROUND;
+ assert( o->name == NULL );
+ asprintf( &o->name, "calibration source %i, range %i, ground referenced",
+ o->reference_source, i );
+ o->observe_insn = tmpl;
+ o->observe_insn.chanspec = CR_PACK( 0, 0, AREF_GROUND) | CR_ALT_SOURCE | CR_ALT_FILTER;
+ o->target = 0.0;
+ setup->n_observables++;
+fprintf( stderr, "cal src %i, range %i, target %g\n",
+ o->reference_source, i, o->target );
+
+ o = setup->observables + high_observable_index_60xx( i );
+ retval = high_ai_cal_src_60xx( setup, i );
+ if( retval < 0 ) return -1;
+ o->reference_source = retval;
+ assert( o->name == NULL );
+ asprintf( &o->name, "calibration source %i, range %i, ground referenced",
+ o->reference_source, i );
+ o->observe_insn = tmpl;
+ o->observe_insn.chanspec = CR_PACK( 0, 0, AREF_GROUND) | CR_ALT_SOURCE | CR_ALT_FILTER;
+ retval = ai_cal_src_voltage_60xx( setup, o->reference_source, &target );
+ if( retval < 0 ) return -1;
o->target = target;
-
- setup->n_observables = 2;
+ setup->n_observables++;
+fprintf( stderr, "cal src %i, range %i, target %g\n",
+ o->reference_source, i, o->target );
+ }
return 0;
}
int cal_cb_pci_60xx( calibration_setup_t *setup )
{
- saved_calibration_t saved_cals[1];
+ saved_calibration_t *saved_cals;
enum cal_knobs_60xx
{
DAC0_OFFSET = 0,
ADC_GAIN_COARSE,
ADC_GAIN_FINE,
};
+ int i, num_ranges, retval;
+
+ comedi_set_global_oor_behavior( COMEDI_OOR_NUMBER );
+
+ num_ranges = comedi_get_n_ranges( setup->dev, setup->ad_subdev, 0 );
+ if( num_ranges < 1 ) return -1;
+
+ saved_cals = malloc( num_ranges * sizeof( saved_calibration_t ) );
+ if( saved_cals == NULL ) return -1;
+
+ for( i = num_ranges - 1; i >= 0; i-- )
+ {
+ reset_caldacs( setup );
+
+ cal_binary( setup, ground_observable_index_60xx( i ), ADC_OFFSET_COARSE );
+ cal_binary( setup, ground_observable_index_60xx( i ), ADC_OFFSET_FINE );
+ cal_binary( setup, high_observable_index_60xx( i ), ADC_GAIN_COARSE );
+ cal_binary( setup, high_observable_index_60xx( i ), ADC_GAIN_FINE );
+
+ memset( &saved_cals[ i ], 0, sizeof( saved_calibration_t ) );
+ saved_cals[ i ].subdevice = setup->ad_subdev;
+ sc_push_caldac( &saved_cals[ i ], setup->caldacs[ ADC_OFFSET_FINE ] );
+ sc_push_caldac( &saved_cals[ i ], setup->caldacs[ ADC_OFFSET_COARSE ] );
+ sc_push_caldac( &saved_cals[ i ], setup->caldacs[ ADC_GAIN_FINE ] );
+ sc_push_caldac( &saved_cals[ i ], setup->caldacs[ ADC_GAIN_COARSE ] );
+ sc_push_channel( &saved_cals[ i ], SC_ALL_CHANNELS );
+ sc_push_range( &saved_cals[ i ], i );
+ sc_push_aref( &saved_cals[ i ], SC_ALL_AREFS );
+ }
- cal_binary( setup, OBS_0V_RANGE_10V_BIP_60XX, ADC_OFFSET_COARSE );
- cal_binary( setup, OBS_0V_RANGE_10V_BIP_60XX, ADC_OFFSET_FINE );
- cal_binary( setup, OBS_5V_RANGE_10V_BIP_60XX, ADC_GAIN_COARSE );
- cal_binary( setup, OBS_5V_RANGE_10V_BIP_60XX, ADC_GAIN_FINE );
-
- memset( &saved_cals[ 0 ], 0, sizeof( saved_calibration_t ) );
- saved_cals[ 0 ].subdevice = setup->ad_subdev;
- sc_push_caldac( &saved_cals[ 0 ], setup->caldacs[ ADC_OFFSET_FINE ] );
- sc_push_caldac( &saved_cals[ 0 ], setup->caldacs[ ADC_OFFSET_COARSE ] );
- sc_push_caldac( &saved_cals[ 0 ], setup->caldacs[ ADC_GAIN_FINE ] );
- sc_push_caldac( &saved_cals[ 0 ], setup->caldacs[ ADC_GAIN_COARSE ] );
- sc_push_channel( &saved_cals[ 0 ], SC_ALL_CHANNELS );
- sc_push_range( &saved_cals[ 0 ], 0 );
- sc_push_aref( &saved_cals[ 0 ], SC_ALL_AREFS );
-
- return write_calibration_file( setup->dev, saved_cals, 1 );
+ retval = write_calibration_file( setup->dev, saved_cals, num_ranges );
+ free( saved_cals );
+ return retval;
}
int cal_cb_pci_4020( calibration_setup_t *setup )
return -1;
}
- DPRINT(0, "eeprom ch %i gives calibration source of %gV\n", eeprom_channel, *voltage);
+ DPRINT(0, "eeprom ch 0x%x gives calibration source of %gV\n", eeprom_channel, *voltage);
return 0;
}
projects / comedilib.git / commitdiff