summaryrefslogtreecommitdiffstats
path: root/src/occ_405/amec/amec_sensors_power.c
blob: 3369a5e415b3a4340aa76ecb717dda92bb00ab29 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
/* IBM_PROLOG_BEGIN_TAG                                                   */
/* This is an automatically generated prolog.                             */
/*                                                                        */
/* $Source: src/occ/amec/amec_sensors_power.c $                           */
/*                                                                        */
/* OpenPOWER OnChipController Project                                     */
/*                                                                        */
/* Contributors Listed Below - COPYRIGHT 2011,2015                        */
/* [+] International Business Machines Corp.                              */
/*                                                                        */
/*                                                                        */
/* Licensed under the Apache License, Version 2.0 (the "License");        */
/* you may not use this file except in compliance with the License.       */
/* You may obtain a copy of the License at                                */
/*                                                                        */
/*     http://www.apache.org/licenses/LICENSE-2.0                         */
/*                                                                        */
/* Unless required by applicable law or agreed to in writing, software    */
/* distributed under the License is distributed on an "AS IS" BASIS,      */
/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or        */
/* implied. See the License for the specific language governing           */
/* permissions and limitations under the License.                         */
/*                                                                        */
/* IBM_PROLOG_END_TAG                                                     */

/******************************************************************************/
/* Includes                                                                   */
/******************************************************************************/
#include <occ_common.h>
#include <ssx.h>
#include <errl.h>               // Error logging
#include "sensor.h"
#include "rtls.h"
#include "occ_sys_config.h"
#include "occ_service_codes.h"  // for SSX_GENERIC_FAILURE
#include "dcom.h"
#include "proc_data.h"
#include "amec_smh.h"
#include "amec_slave_smh.h"
#include <trac.h>
#include "amec_sys.h"
#include "sensor_enum.h"
#include "amec_service_codes.h"
#include <amec_sensors_power.h>
#include <cmdh_snapshot.h>
// @TODO - TEMP - uncomment when vrm file is updated
//#include <vrm.h>
#include "amec_oversub.h"

/******************************************************************************/
/* Globals                                                                    */
/******************************************************************************/
// This holds the converted ADC Reads
uint32_t G_lastValidAdcValue[MAX_APSS_ADC_CHANNELS] = {0};

extern thrm_fru_data_t      G_thrm_fru_data[DATA_FRU_MAX];

// There are only MAX_APSS_ADC_CHANNELS channels.  Therefore if the channel value
// is greater then the MAX, then there was no channel associated with the function id.
#define ADC_CONVERTED_VALUE(i_chan) \
    ((i_chan < MAX_APSS_ADC_CHANNELS) ? G_lastValidAdcValue[i_chan] : 0)

extern uint8_t G_occ_interrupt_type;

//*************************************************************************
// Code
//*************************************************************************

// Function Specification
//
// Name: amec_sensor_from_apss_adc
//
// Description: Calculates sensor from raw ADC value
//
// Thread: RealTime Loop
//
// End Function Specification
uint32_t amec_value_from_apss_adc(uint8_t i_chan)
{
    uint16_t l_raw = 0;
    uint32_t l_temp = 0;
    uint32_t l_gain = 0;
    uint32_t l_offset = 0;

    if(i_chan != SYSCFG_INVALID_ADC_CHAN)
    {
        /*
         * The APSS value is in mV or mA depending on the channel and the raw
         * reading from the APSS must be decoded using the following info:
         *
         * APSS LSB: Vref/4096
         * Full scale: (Vref - LSB) = 0xFFF
         * Midscale: Vref/2 = 0x800
         * Midscale - 1 LSB: Vref/2 - 1 LSB, 0x7FF
         * Zero: 0V, 0x000
         * Any voltage at or above Vref will will result in an ADC channel value
         * of 0xFFF
         *
         * Our APSS has Vref pinned to 2.048 V
         * LSB: 0.5 mV (minimum ADC resolution)
         * Full scale: 2047.5 mV (0xFFF)
         * Midscale: 1024 mV (0x800)
         * Zero: 0V, 0x000
         *
         * To get the right mV reading from the raw APSS data all we need to do
         * is divide the raw 12 bit ADC code by 2.  The same logic applies if
         * the channel is measuring power in mA.
         *
         * If there is an offset it will bein mV or mA depending upon the sensor
         * and it needs to be added or subtracted from the raw value depending
         * on it's signedness.  Negative offsets are stored in 2's complement
         * form.
         *
         * The gain values will be multiplied by 1000 in TMGT before being sent
         * in the sysconfig packet.  Raw gain from the MRW values are in A/V and
         * TMGT will multiply this by 1000 before sending in the sysconfig
         * packet to preserve precision.  That makes the gain units mA/V.
         *
         * To apply the gain multiply the sysconfig value against the converted
         * APSS voltage.
         *
         * Applying the gain to the converted APSS data gives (mV . mA)/V so we
         * divide by 1000 to reduce the result to mA.  This is the unit that
         * is returned to the caller. For example:
         * raw APSS value: 0x800
         * converted value: raw/2 = 1024 mV
         * gain from MRW: 10.00 A/V
         * Converted gain: 10,000 mA/V
         * gain adjusted output: 1024mV * 10,000 mA/V = 10,240,000 (mV . mA)/V
         * Reduced value: adjusted/1000 = 10,240 mA
         *
         * Note that in the case of the remote ground and 12V sense the gain
         * values are in V/V so the returned value is actually in mVs.
         *
         * Max returnable value is 4,294,967,295 mA or approx. 4.3 MA
         */

        // Get ADC Mapping calibration info for this entity.
        l_gain = G_sysConfigData.apss_cal[i_chan].gain;
        l_offset = G_sysConfigData.apss_cal[i_chan].offset;

        // Read Raw Value in mA (divide masked channel data by 2)
        l_raw = (G_dcom_slv_inbox_rx.adc[i_chan] & APSS_12BIT_ADC_MASK)/2;
        // Apply offset and gain
        if (l_offset & 0x80000000)
        {
            // Negative offset
            l_raw -= (~l_offset + 1);
        }
        else
        {
            l_raw += l_offset;
        }
        //Check to see if l_raw is negative.  If so, set raw to 0
        if (l_raw & 0x8000)
        {
            l_raw = 0;
        }

        l_temp = ((uint32_t)l_raw * l_gain);
        // Reduce value back to mA or mV
        l_temp /= 1000;
    }

    AMEC_DBG("APSS ADC info: chan=%d, raw=0x%04x, offset=%d, gain=%d calibrated output=%d\n",
             i_chan, l_raw, l_offset, l_gain, l_temp);

    return l_temp;
}

#define ADCMULT_TO_UNITS 1000000
#define ADCMULT_ROUND ADCMULT_TO_UNITS/2
// Function Specification
//
// Name: amec_update_channel_sensor
//
// Description: Used to calculate power based on raw data obtained from APSS
//
// End Function Specification
void amec_update_channel_sensor(const uint8_t i_channel)
{
    if (i_channel < MAX_APSS_ADC_CHANNELS)
    {
        if(AMECSENSOR_PTR(PWRAPSSCH0 + i_channel)->ipmi_sid != 0)
        {
            uint32_t l_bulk_voltage = ADC_CONVERTED_VALUE(G_sysConfigData.apss_adc_map.sense_12v);

            uint32_t l_temp32 = ADC_CONVERTED_VALUE(i_channel);
            l_temp32  = ((l_temp32  * l_bulk_voltage)+ADCMULT_ROUND)/ADCMULT_TO_UNITS;
            sensor_update(AMECSENSOR_PTR(PWRAPSSCH0 + i_channel), (uint16_t) l_temp32);
        }
    }
}


// Function Specification
//
// Name: amec_update_apss_sensors
//
// Description: Calculates sensor from raw ADC values obtained from APSS
//
// Thread: RealTime Loop
//
// End Function Specification
void amec_update_apss_sensors(void)
{
    /*
     * Removed fake apss config data, do not reuse, the old hardcoded
     * values will not work with the new code used in processing APSS channel
     * data.
     * Code is in place to receive command code 0x21 SET CONFIG DATA
     * which should popluate the ADC and GPIO maps as well as the APSS
     * calibration data for all 16 ADC channels.
     */
    // Need to check to make sure APSS data has been received
    // via slave inbox first
    if (G_slv_inbox_received)
    {
        uint8_t l_proc  = G_pob_id.module_id;
        uint32_t temp32 = 0;
        uint8_t  l_idx   = 0;
        uint32_t l_bulk_current_sum = 0;

        // ----------------------------------------------------
        // Convert all ADC Channels immediately
        // ----------------------------------------------------
        for (l_idx = 0; l_idx < MAX_APSS_ADC_CHANNELS; l_idx++)
        {
            // These values returned are gain adjusted. The APSS readings for
            // the remote ground and 12V sense are returned in mVs, all other
            // readings are treated as mAs.
            G_lastValidAdcValue[l_idx] = amec_value_from_apss_adc(l_idx);

            // Add up all channels now, we will subtract ones later that don't
            // count towards the system power
            l_bulk_current_sum += G_lastValidAdcValue[l_idx];
        }

        //Only for FSP-LESS systems do we update channel sensors.
        if (FSP_SUPPORTED_OCC != G_occ_interrupt_type)
        {
            amec_update_channel_sensor(G_sysConfigData.apss_adc_map.memory[l_proc][0]);
            for (l_idx = 1; l_idx < MAX_PROC_CENT_CH; l_idx++)
            {
                amec_update_channel_sensor(G_sysConfigData.apss_adc_map.memory[l_proc][l_idx]);
            }
            amec_update_channel_sensor(G_sysConfigData.apss_adc_map.vdd[l_proc]);
            amec_update_channel_sensor(G_sysConfigData.apss_adc_map.vcs_vio_vpcie[l_proc]);

            if (OCC_MASTER == G_occ_role)
            {
                amec_update_channel_sensor(G_sysConfigData.apss_adc_map.io[0]);
                amec_update_channel_sensor(G_sysConfigData.apss_adc_map.io[1]);
                amec_update_channel_sensor(G_sysConfigData.apss_adc_map.io[2]);
                amec_update_channel_sensor(G_sysConfigData.apss_adc_map.fans[0]);
                amec_update_channel_sensor(G_sysConfigData.apss_adc_map.fans[1]);
                amec_update_channel_sensor(G_sysConfigData.apss_adc_map.storage_media[0]);
                amec_update_channel_sensor(G_sysConfigData.apss_adc_map.storage_media[1]);
                amec_update_channel_sensor(G_sysConfigData.apss_adc_map.total_current_12v);
                amec_update_channel_sensor(G_sysConfigData.apss_adc_map.mem_cache);
                amec_update_channel_sensor(G_sysConfigData.apss_adc_map.gpu);
            }
        }

        // --------------------------------------------------------------
        // Convert 12Vsense into interim value - this has to happen first
        // --------------------------------------------------------------
        uint32_t l_bulk_voltage = ADC_CONVERTED_VALUE(G_sysConfigData.apss_adc_map.sense_12v);

        // ----------------------------------------------------------
        // Convert Raw Vdd/Vcs/Vio/Vpcie Power from APSS into sensors
        // ----------------------------------------------------------
        // Some sensor values are in Watts so after getting the mA readings we
        // multiply by the bulk voltage (mVs) which requires us to then divide
        // by 1000000 to get W (A.V), ie.
        //  divide by    1000 to get it back to milliUnits (0.001)
        //  divide by   10000 to get it to centiUnits      (0.01)
        //  divide by  100000 to get it to deciUnits       (0.1)
        //  divide by 1000000 to get it to Units           (1)

        //Update channel specific sensors based on saved pairing between function Ids and Channels.

        uint32_t l_vdd = ADC_CONVERTED_VALUE(G_sysConfigData.apss_adc_map.vdd[l_proc]);
        uint32_t l_vcs_vio_vpcie = ADC_CONVERTED_VALUE(G_sysConfigData.apss_adc_map.vcs_vio_vpcie[l_proc]);
        temp32 = ((l_vcs_vio_vpcie + l_vdd) * l_bulk_voltage)/ADCMULT_TO_UNITS;
        sensor_update(AMECSENSOR_PTR(PWR250USP0), (uint16_t) temp32);

        // Save off the combined power from all modules
        for (l_idx=0; l_idx < MAX_NUM_CHIP_MODULES; l_idx++)
        {
            uint32_t l_vd = ADC_CONVERTED_VALUE(G_sysConfigData.apss_adc_map.vdd[l_idx]);
            uint32_t l_vpcie = ADC_CONVERTED_VALUE(G_sysConfigData.apss_adc_map.vcs_vio_vpcie[l_idx]);
            g_amec->proc_snr_pwr[l_idx] =  ((l_vpcie + l_vd) * l_bulk_voltage)/ADCMULT_TO_UNITS;
        }

        // All readings from APSS come back as milliUnits, so if we want
        // to convert one, we need to
        //  divide by    1 to get it back to milliUnits (0.001)
        //  divide by   10 to get it to centiUnits      (0.01)
        //  divide by  100 to get it to deciUnits       (0.1)
        //  divide by 1000 to get it to Units           (1)
        // Vdd has both a power and a current sensor, we convert the Vdd power
        // to Watts and the current to centiAmps
        temp32 = ((l_vdd * l_bulk_voltage)+ADCMULT_ROUND)/ADCMULT_TO_UNITS;
        sensor_update( AMECSENSOR_PTR(PWR250USVDD0), (uint16_t)temp32);
        temp32 = ((l_vcs_vio_vpcie * l_bulk_voltage)+ADCMULT_ROUND)/ADCMULT_TO_UNITS;
        sensor_update( AMECSENSOR_PTR(PWR250USVCS0), (uint16_t)temp32);

        // ----------------------------------------------------
        // Convert Other Raw Misc Power from APSS into sensors
        // ----------------------------------------------------

        // Fans: Add up all Fan channels
        temp32  = ADC_CONVERTED_VALUE(G_sysConfigData.apss_adc_map.fans[0]);
        temp32 += ADC_CONVERTED_VALUE(G_sysConfigData.apss_adc_map.fans[1]);
        temp32  = ((temp32  * l_bulk_voltage)+ADCMULT_ROUND)/ADCMULT_TO_UNITS;
        sensor_update( AMECSENSOR_PTR(PWR250USFAN), (uint16_t)temp32);

        // I/O: Add up all I/O channels
        temp32  = ADC_CONVERTED_VALUE(G_sysConfigData.apss_adc_map.io[0]);
        temp32 += ADC_CONVERTED_VALUE(G_sysConfigData.apss_adc_map.io[1]);
        temp32 += ADC_CONVERTED_VALUE(G_sysConfigData.apss_adc_map.io[2]);
        temp32 = ((temp32  * l_bulk_voltage)+ADCMULT_ROUND)/ADCMULT_TO_UNITS;
        sensor_update( AMECSENSOR_PTR(PWR250USIO), (uint16_t)temp32);

        // Memory: Add up all channels for the same processor.
        temp32 = ADC_CONVERTED_VALUE(G_sysConfigData.apss_adc_map.memory[l_proc][0]);
        temp32 += ADC_CONVERTED_VALUE(G_sysConfigData.apss_adc_map.memory[l_proc][1]);
        temp32 += ADC_CONVERTED_VALUE(G_sysConfigData.apss_adc_map.memory[l_proc][2]);
        temp32 += ADC_CONVERTED_VALUE(G_sysConfigData.apss_adc_map.memory[l_proc][3]);
        //Only for FSP-LESS systems do we add in Centaur power because it is measured on its own A/D channel, but is part of memory power
        if (FSP_SUPPORTED_OCC != G_occ_interrupt_type)
        {
            temp32 += ADC_CONVERTED_VALUE(G_sysConfigData.apss_adc_map.mem_cache);
        }
        temp32 = ((temp32  * l_bulk_voltage)+ADCMULT_ROUND)/ADCMULT_TO_UNITS;
        sensor_update( AMECSENSOR_PTR(PWR250USMEM0), (uint16_t)temp32);

        // Save off the combined power from all memory
        for (l_idx=0; l_idx < MAX_NUM_CHIP_MODULES; l_idx++)
        {
            uint32_t l_temp = ADC_CONVERTED_VALUE(G_sysConfigData.apss_adc_map.memory[l_idx][0]);
            l_temp += ADC_CONVERTED_VALUE(G_sysConfigData.apss_adc_map.memory[l_idx][1]);
            l_temp += ADC_CONVERTED_VALUE(G_sysConfigData.apss_adc_map.memory[l_idx][2]);
            l_temp += ADC_CONVERTED_VALUE(G_sysConfigData.apss_adc_map.memory[l_idx][3]);
            g_amec->mem_snr_pwr[l_idx] = ((l_temp  * l_bulk_voltage)+ADCMULT_ROUND)/ADCMULT_TO_UNITS;
        }

        // Storage/Media
        temp32  = ADC_CONVERTED_VALUE(G_sysConfigData.apss_adc_map.storage_media[0]);
        temp32 += ADC_CONVERTED_VALUE(G_sysConfigData.apss_adc_map.storage_media[1]);
        temp32  = ((temp32  * l_bulk_voltage)+ADCMULT_ROUND)/ADCMULT_TO_UNITS;
        sensor_update( AMECSENSOR_PTR(PWR250USSTORE), (uint16_t)temp32);

        // GPU adapter
        temp32 = ADC_CONVERTED_VALUE(G_sysConfigData.apss_adc_map.gpu);
        temp32 = ((temp32 * l_bulk_voltage)+ADCMULT_ROUND)/ADCMULT_TO_UNITS;
        sensor_update( AMECSENSOR_PTR(PWR250USGPU), (uint16_t)temp32);

        // ----------------------------------------------------
        // Convert Raw Bulk Power from APSS into sensors
        // ----------------------------------------------------
        // We don't get this adc channel in some systems, we have to add it manually.
        // With valid sysconfig data the code here should automatically use what
        // is provided by the APSS if it is available, or manually sum it up if not.
        temp32 = ADC_CONVERTED_VALUE(G_sysConfigData.apss_adc_map.total_current_12v);
        temp32 = ((temp32 * l_bulk_voltage)+ADCMULT_ROUND)/ADCMULT_TO_UNITS;

        // To calculated the total 12V current based on a sum of all ADC channels,
        // Subract adc channels that don't measure power
        l_bulk_current_sum -= ADC_CONVERTED_VALUE(G_sysConfigData.apss_adc_map.sense_12v);
        l_bulk_current_sum -= ADC_CONVERTED_VALUE(G_sysConfigData.apss_adc_map.remote_gnd);

        // If we don't have a ADC channel that measures the bulk 12v power, use
        // the ADC sum instead
        if(0 == temp32)
        {
            temp32 = ((l_bulk_current_sum * l_bulk_voltage)+ADCMULT_ROUND)/ADCMULT_TO_UNITS;
        }
        sensor_update(AMECSENSOR_PTR(PWR250US), (uint16_t)temp32);

        // Calculate average frequency of all OCCs.
        uint32_t    l_allOccAvgFreqOver250us = 0;
        uint8_t     l_presentOCCs = 0;
        uint8_t     l_occCount = 0;

        // Add up the average freq from all OCCs.
        for (l_occCount = 0; l_occCount < MAX_OCCS; l_occCount++)
        {
            if (G_sysConfigData.is_occ_present & (1<< l_occCount))
            {
                l_allOccAvgFreqOver250us += G_dcom_slv_outbox_rx[l_occCount].freqa2msp0;
                l_presentOCCs++;
            }
        }
        //Calculate average of all the OCCs.
        l_allOccAvgFreqOver250us /= l_presentOCCs;

        // Save the max and min pwr250us sensors and keep an accumulator of the
        // average frequency over 30 seconds.
        if (g_pwr250us_over30sec.count == 0)
        {
            //The counter has been reset, therefore initialize the stored values.
            g_pwr250us_over30sec.max = (uint16_t) temp32;
            g_pwr250us_over30sec.min = (uint16_t) temp32;
            g_pwr250us_over30sec.freqaAccum = l_allOccAvgFreqOver250us;
        }
        else
        {
            //Check for max.
            if (temp32 > g_pwr250us_over30sec.max)
            {
                g_pwr250us_over30sec.max = (uint16_t) temp32;
            }
            //Check for min.
            if (temp32 < g_pwr250us_over30sec.min)
            {
                g_pwr250us_over30sec.min = (uint16_t) temp32;
            }
            //Average frequency accumulator.
            g_pwr250us_over30sec.freqaAccum += l_allOccAvgFreqOver250us;
        }

        //Count of number of updates.
        g_pwr250us_over30sec.count++;

        // ----------------------------------------------------
        // Clear Flag to indicate that AMEC has received the data.
        // ----------------------------------------------------
        G_slv_inbox_received = FALSE;
    }
    else
    {
        // Skip it...AMEC Health Monitor will figure out we didn't
        // update this sensor.
    }
}

// @TODO - TEMP - SPIVRMs are no longer defined, pgp_vrm.h and vrm.c are not present
#if 0

// Function Specification
//
// Name: amec_update_vrm_sensors
//
// Description: Updates sensors that use data from the VRMs
// (e.g., VR_FAN, FANS_FULL_SPEED, VR_HOT).
//
// Thread: RealTime Loop
//
// End Function Specification
void amec_update_vrm_sensors(void)
{
    /*------------------------------------------------------------------------*/
    /*  Local Variables                                                       */
    /*------------------------------------------------------------------------*/
    int                         l_rc = 0;
    int                         l_vrfan = 0;
    int                         l_softoc = 0;
    int                         l_minus_np1_regmode = 0;
    int                         l_minus_n_regmode = 0;
    static uint8_t              L_error_count = 0;
    uint8_t                     l_pin_value = 1; // active low, so set default to high
    uint8_t                     l_vrhot_count = 0;
    errlHndl_t                  l_err = NULL;

    /*------------------------------------------------------------------------*/
    /*  Code                                                                  */
    /*------------------------------------------------------------------------*/

    // Check if we have access to SPIVID. In DCMs only Master OCC has access to
    // the SPIVID.
    if (G_dcm_occ_role == OCC_DCM_MASTER)
    {
        // VR_FAN and SOFT_OC come from SPIVID
        l_rc = vrm_read_state(SPIVRM_PORT(0),
                            &l_minus_np1_regmode,
                            &l_minus_n_regmode,
                            &l_vrfan,
                            &l_softoc);

        if (l_rc == 0)
        {
            // Update the VR_FAN sensor
            sensor_update( AMECSENSOR_PTR(VRFAN250USPROC), (uint16_t)l_vrfan );

            // Clear our error count and the 'read failure' flag (since we can
            // read VR_FAN signal)
            L_error_count = 0;
            G_thrm_fru_data[DATA_FRU_VRM].read_failure = 0;

            // No longer reading gpio from APSS in GA1 due to instability in
            // APSS composite mode
            //apss_gpio_get(l_pin, &l_pin_value);

            // VR_HOT sensor is a counter of number of times the VRHOT signal
            // has been asserted
            l_vrhot_count = AMECSENSOR_PTR(VRHOT250USPROC)->sample;

            // Check if VR_FAN is asserted AND if 'fans_full_speed' GPIO is ON.
            // Note that this GPIO is active low.
            if (AMECSENSOR_PTR(VRFAN250USPROC)->sample && !(l_pin_value))
            {
                // VR_FAN is asserted and 'fans_full_speed' GPIO is ON,
                // then increment our VR_HOT counter
                if (l_vrhot_count < g_amec->vrhotproc.setpoint)
                {
                    l_vrhot_count++;
                }
            }
            else
            {
                // Reset our VR_HOT counter
                l_vrhot_count = 0;
            }
            sensor_update(AMECSENSOR_PTR(VRHOT250USPROC), l_vrhot_count);
        }
        else
        {
            // Increment our error count
            L_error_count++;

            // Don't allow the error count to wrap
            if (L_error_count == 0)
            {
                L_error_count = 0xFF;
            }

            // Log an error if we exceeded our number of fail-to-read sensor
            if ((L_error_count == g_amec->proc[0].vrfan_error_count) &&
                (g_amec->proc[0].vrfan_error_count != 0xFF))
            {
                TRAC_ERR("amec_update_vrm_sensors: Failed to read VR_FAN for %u consecutive times!",
                         L_error_count);

                // Also, inform the thermal thread to send a cooling request
                G_thrm_fru_data[DATA_FRU_VRM].read_failure = 1;

                /* @
                 * @errortype
                 * @moduleid    AMEC_HEALTH_CHECK_VRFAN_TIMEOUT
                 * @reasoncode  VRM_VRFAN_TIMEOUT
                 * @userdata1   timeout value
                 * @userdata2   0
                 * @userdata4   OCC_NO_EXTENDED_RC
                 * @devdesc     Failed to read VR_FAN signal from regulator.
                 *
                 */
                l_err = createErrl(AMEC_HEALTH_CHECK_VRFAN_TIMEOUT,  //modId
                                   VRM_VRFAN_TIMEOUT,                //reasoncode
                                   OCC_NO_EXTENDED_RC,               //Extended reason code
                                   ERRL_SEV_PREDICTIVE,              //Severity
                                   NULL,                             //Trace Buf
                                   DEFAULT_TRACE_SIZE,               //Trace Size
                                   g_amec->thermaldimm.temp_timeout, //userdata1
                                   0);                               //userdata2

                // Callout backplane for this VRM error
                addCalloutToErrl(l_err,
                                 ERRL_CALLOUT_TYPE_HUID,
                                 G_sysConfigData.backplane_huid,
                                 ERRL_CALLOUT_PRIORITY_MED);

                // Commit the error
                commitErrl(&l_err);
            }
        }
    }

    if( 1 )
    {
        sensor_update( AMECSENSOR_PTR(VRFAN250USMEM), 0 );
        sensor_update( AMECSENSOR_PTR(VRHOT250USMEM), 0 );
    }
}

#endif // #if 0 @TODO - TEMP - SPIVRMs are no longer defined, pgp_vrm.h and vrm.c are not present

// Function Specification
//
// Name: amec_update_external_voltage
//
// Description: Measure actual external voltage
//
// Thread: RealTime Loop
//
// End Function Specification
void amec_update_external_voltage()
{
    /*------------------------------------------------------------------------*/
    /*  Local Variables                                                       */
    /*------------------------------------------------------------------------*/
    uint32_t                    l_data = 0;
    uint16_t                    l_temp = 0;
    uint16_t                    l_vdd = 0;
    uint16_t                    l_vcs = 0;

    /*------------------------------------------------------------------------*/
    /*  Code                                                                  */
    /*------------------------------------------------------------------------*/
    // Collect the external voltage data
// @TODO - TEMP - External Votage regulator is not defined in simics yet
//    l_data = in32(PMC_GLOBAL_ACTUAL_VOLTAGE_REG);

    // Extract the Vdd vid code and convert to voltage
    l_temp = (l_data & 0xFF000000) >>24;
    l_vdd = 16125 - ((uint32_t)l_temp * 625)/10;

    // Extract the Vcs vid code and convert to voltage
    l_temp = (l_data & 0x00FF0000) >>16;
    l_vcs = 16125 - ((uint32_t)l_temp * 625)/10;

    sensor_update( AMECSENSOR_PTR(VOLT250USP0V0), (uint16_t) l_vdd);
    sensor_update( AMECSENSOR_PTR(VOLT250USP0V1), (uint16_t) l_vcs);
}

// Function Specification
//
// Name: amec_update_current_sensor
//
// Description: Estimates Vdd output current based on input power and Vdd voltage setting.
//   Compute CUR250USVDD0 (current out of Vdd regulator)
//
// Flow:
//
// Thread: RealTime Loop
//
// Changedby:
//
// Task Flags:
//
// End Function Specification
void amec_update_current_sensor(void)
{
    uint32_t result32; //temporary result
    uint16_t l_pow_reg_input_dW = AMECSENSOR_PTR(PWR250USVDD0)->sample * 10; // convert to dW by *10.
    uint16_t l_vdd_reg = AMECSENSOR_PTR(VOLT250USP0V0)->sample;
    uint32_t l_pow_reg_output_mW;
    uint32_t l_curr_output;


    /* Step 1 */

    // 1. Get PWR250USVDD0  (the input power to regulator)
    // 2. Look up efficiency using PWR250USVDD0 as index (and interpolate)
    // 3. Calculate output power = PWR250USVDD0 * efficiency
    // 4. Calculate output current = output power / Vdd set point

    /* Determine regulator efficiency */
    // use 85% efficiency all the time
    result32 = 8500;

    // Compute regulator output power.  out = in * efficiency
    //    in: min=0W max=300W = 3000dW
    //    eff: min=0 max=10000=100% (.01% units)
    //    p_out: max=3000dW * 10000 = 30,000,000 (dW*0.0001) < 2^25, fits in 25 bits
    l_pow_reg_output_mW = (uint32_t)l_pow_reg_input_dW * (uint32_t)result32;
    // Scale up p_out by 10x to give better resolution for the following division step
    //    p_out: max=30M (dW*0.0001) in 25 bits
    //    * 10    = 300M (dW*0.00001) in 29 bits
    l_pow_reg_output_mW *= 10;
    // Compute current out of regulator.  curr_out = power_out (*10 scaling factor) / voltage_out
    //    p_out: max=300M (dW*0.00001) in 29 bits
    //    v_out: min=5000 (0.0001 V)  max=16000(0.0001 V) in 14 bits
    //    i_out: max = 300M/5000 = 60000 (dW*0.00001/(0.0001V)= 0.01A), in 16 bits.
    // VOLT250USP0V0 in units of 0.0001 V = 0.1 mV. (multiply by 0.1 to get mV)
    l_curr_output = l_pow_reg_output_mW / l_vdd_reg;
    sensor_update(AMECSENSOR_PTR(CUR250USVDD0), l_curr_output);

}

/*----------------------------------------------------------------------------*/
/* End                                                                        */
/*----------------------------------------------------------------------------*/
OpenPOWER on IntegriCloud