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-rw-r--r--firmware/drivers/axp-pmu.c670
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diff --git a/firmware/drivers/axp-pmu.c b/firmware/drivers/axp-pmu.c
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index fd1126dbbf..0000000000
--- a/firmware/drivers/axp-pmu.c
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1/***************************************************************************
2 * __________ __ ___.
3 * Open \______ \ ____ ____ | | _\_ |__ _______ ___
4 * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
5 * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
6 * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
7 * \/ \/ \/ \/ \/
8 * $Id$
9 *
10 * Copyright (C) 2021 Aidan MacDonald
11 *
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License
14 * as published by the Free Software Foundation; either version 2
15 * of the License, or (at your option) any later version.
16 *
17 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
18 * KIND, either express or implied.
19 *
20 ****************************************************************************/
21
22#include "axp-pmu.h"
23#include "power.h"
24#include "system.h"
25#include "i2c-async.h"
26#include <string.h>
27
28/* Headers for the debug menu */
29#ifndef BOOTLOADER
30# include "action.h"
31# include "list.h"
32# include <stdio.h>
33#endif
34
35struct axp_adc_info {
36 uint8_t reg;
37 uint8_t en_reg;
38 uint8_t en_bit;
39};
40
41struct axp_supply_info {
42 uint8_t volt_reg;
43 uint8_t volt_reg_mask;
44 uint8_t en_reg;
45 uint8_t en_bit;
46 int min_mV;
47 int max_mV;
48 int step_mV;
49};
50
51static const struct axp_adc_info axp_adc_info[NUM_ADC_CHANNELS] = {
52 {0x56, AXP_REG_ADCENABLE1, 5}, /* ACIN_VOLTAGE */
53 {0x58, AXP_REG_ADCENABLE1, 4}, /* ACIN_CURRENT */
54 {0x5a, AXP_REG_ADCENABLE1, 3}, /* VBUS_VOLTAGE */
55 {0x5c, AXP_REG_ADCENABLE1, 2}, /* VBUS_CURRENT */
56 {0x5e, AXP_REG_ADCENABLE2, 7}, /* INTERNAL_TEMP */
57 {0x62, AXP_REG_ADCENABLE1, 1}, /* TS_INPUT */
58 {0x78, AXP_REG_ADCENABLE1, 7}, /* BATTERY_VOLTAGE */
59 {0x7a, AXP_REG_ADCENABLE1, 6}, /* CHARGE_CURRENT */
60 {0x7c, AXP_REG_ADCENABLE1, 6}, /* DISCHARGE_CURRENT */
61 {0x7e, AXP_REG_ADCENABLE1, 1}, /* APS_VOLTAGE */
62 {0x70, 0xff, 0}, /* BATTERY_POWER */
63};
64
65static const struct axp_supply_info axp_supply_info[AXP_NUM_SUPPLIES] = {
66#if HAVE_AXP_PMU == 192
67 [AXP_SUPPLY_DCDC1] = {
68 .volt_reg = 0x26,
69 .volt_reg_mask = 0x7f,
70 .en_reg = 0x12,
71 .en_bit = 0,
72 .min_mV = 700,
73 .max_mV = 3500,
74 .step_mV = 25,
75 },
76 [AXP_SUPPLY_DCDC2] = {
77 .volt_reg = 0x23,
78 .volt_reg_mask = 0x3f,
79 .en_reg = 0x10,
80 .en_bit = 0,
81 .min_mV = 700,
82 .max_mV = 2275,
83 .step_mV = 25,
84 },
85 [AXP_SUPPLY_DCDC3] = {
86 .volt_reg = 0x27,
87 .volt_reg_mask = 0x7f,
88 .en_reg = 0x12,
89 .en_bit = 1,
90 .min_mV = 700,
91 .max_mV = 3500,
92 .step_mV = 25,
93 },
94 /*
95 * NOTE: LDO1 is always on, and we can't query it or change voltages
96 */
97 [AXP_SUPPLY_LDO2] = {
98 .volt_reg = 0x28,
99 .volt_reg_mask = 0xf0,
100 .en_reg = 0x12,
101 .en_bit = 2,
102 .min_mV = 1800,
103 .max_mV = 3300,
104 .step_mV = 100,
105 },
106 [AXP_SUPPLY_LDO3] = {
107 .volt_reg = 0x28,
108 .volt_reg_mask = 0x0f,
109 .en_reg = 0x12,
110 .en_bit = 3,
111 .min_mV = 1800,
112 .max_mV = 3300,
113 .step_mV = 100,
114 },
115 [AXP_SUPPLY_LDO_IO0] = {
116 .volt_reg = 0x91,
117 .volt_reg_mask = 0xf0,
118 .en_reg = 0x90,
119 .en_bit = 0xff, /* this one requires special handling */
120 .min_mV = 1800,
121 .max_mV = 3300,
122 .step_mV = 100,
123 },
124#else
125# error "Untested AXP chip"
126#endif
127};
128
129static struct axp_driver {
130 int adc_enable;
131 int chargecurrent_setting;
132 int chip_id;
133} axp;
134
135static void axp_init_enabled_adcs(void)
136{
137 axp.adc_enable = 0;
138
139 /* Read chip ID, so we can display it on the debug screen.
140 * This is undocumented but there's Linux driver code floating around
141 * which suggests this should work for many AXP chips. */
142 axp.chip_id = i2c_reg_read1(AXP_PMU_BUS, AXP_PMU_ADDR, AXP_REG_CHIP_ID);
143
144 /* Read enabled ADCs from the hardware */
145 uint8_t regs[2];
146 int rc = i2c_reg_read(AXP_PMU_BUS, AXP_PMU_ADDR,
147 AXP_REG_ADCENABLE1, 2, &regs[0]);
148 if(rc != I2C_STATUS_OK)
149 return;
150
151 /* Parse registers to set ADC enable bits */
152 const struct axp_adc_info* info = axp_adc_info;
153 for(int i = 0; i < NUM_ADC_CHANNELS; ++i) {
154 if(info[i].en_reg == 0xff)
155 continue;
156
157 if(regs[info[i].en_reg - AXP_REG_ADCENABLE1] & info[i].en_bit)
158 axp.adc_enable |= 1 << i;
159 }
160
161 /* Handle battery power ADC */
162 if((axp.adc_enable & (1 << ADC_BATTERY_VOLTAGE)) &&
163 (axp.adc_enable & (1 << ADC_DISCHARGE_CURRENT))) {
164 axp.adc_enable |= (1 << ADC_BATTERY_POWER);
165 }
166}
167
168void axp_init(void)
169{
170 axp_init_enabled_adcs();
171
172 /* We need discharge current ADC to reliably poll for a full battery */
173 int bits = axp.adc_enable;
174 bits |= (1 << ADC_DISCHARGE_CURRENT);
175 axp_adc_set_enabled(bits);
176
177 /* Read the maximum charging current */
178 int value = i2c_reg_read1(AXP_PMU_BUS, AXP_PMU_ADDR, AXP_REG_CHARGECONTROL1);
179 axp.chargecurrent_setting = (value < 0) ? -1 : (value & 0xf);
180}
181
182void axp_supply_set_voltage(int supply, int voltage)
183{
184 const struct axp_supply_info* info = &axp_supply_info[supply];
185 if(info->volt_reg == 0 || info->volt_reg_mask == 0)
186 return;
187
188 if(voltage > 0 && info->step_mV != 0) {
189 if(voltage < info->min_mV || voltage > info->max_mV)
190 return;
191
192 int regval = (voltage - info->min_mV) / info->step_mV;
193 i2c_reg_modify1(AXP_PMU_BUS, AXP_PMU_ADDR, info->volt_reg,
194 info->volt_reg_mask, regval, NULL);
195 }
196
197 if(info->en_bit != 0xff) {
198 i2c_reg_setbit1(AXP_PMU_BUS, AXP_PMU_ADDR,
199 info->en_reg, info->en_bit,
200 voltage > 0 ? 1 : 0, NULL);
201 }
202}
203
204int axp_supply_get_voltage(int supply)
205{
206 const struct axp_supply_info* info = &axp_supply_info[supply];
207 if(info->volt_reg == 0)
208 return AXP_SUPPLY_NOT_PRESENT;
209
210 if(info->en_reg != 0) {
211 int r = i2c_reg_read1(AXP_PMU_BUS, AXP_PMU_ADDR, info->en_reg);
212 if(r < 0)
213 return AXP_SUPPLY_DISABLED;
214
215#if HAVE_AXP_PMU == 192
216 if(supply == AXP_SUPPLY_LDO_IO0) {
217 if((r & 7) != 2)
218 return AXP_SUPPLY_DISABLED;
219 } else
220#endif
221 {
222 if(r & (1 << info->en_bit) == 0)
223 return AXP_SUPPLY_DISABLED;
224 }
225 }
226
227 /* Hack, avoid undefined shift below. Can be useful too... */
228 if(info->volt_reg_mask == 0)
229 return info->min_mV;
230
231 int r = i2c_reg_read1(AXP_PMU_BUS, AXP_PMU_ADDR, info->volt_reg);
232 if(r < 0)
233 return 0;
234
235 int bit = find_first_set_bit(info->volt_reg_mask);
236 int val = (r & info->volt_reg_mask) >> bit;
237 return info->min_mV + (val * info->step_mV);
238}
239
240/* TODO: this can STILL indicate some false positives! */
241int axp_battery_status(void)
242{
243 int r = i2c_reg_read1(AXP_PMU_BUS, AXP_PMU_ADDR, AXP_REG_POWERSTATUS);
244 if(r >= 0) {
245 /* Charging bit indicates we're currently charging */
246 if((r & 0x04) != 0)
247 return AXP_BATT_CHARGING;
248
249 /* Not plugged in means we're discharging */
250 if((r & 0xf0) == 0)
251 return AXP_BATT_DISCHARGING;
252 } else {
253 /* Report discharging if we can't find out power status */
254 return AXP_BATT_DISCHARGING;
255 }
256
257 /* If the battery is full and not in use, the charging bit will be 0,
258 * there will be an external power source, AND the discharge current
259 * will be zero. Seems to rule out all false positives. */
260 int d = axp_adc_read_raw(ADC_DISCHARGE_CURRENT);
261 if(d == 0)
262 return AXP_BATT_FULL;
263
264 return AXP_BATT_DISCHARGING;
265}
266
267int axp_input_status(void)
268{
269#ifdef HAVE_BATTERY_SWITCH
270 int input_status = 0;
271#else
272 int input_status = AXP_INPUT_BATTERY;
273#endif
274
275 int r = i2c_reg_read1(AXP_PMU_BUS, AXP_PMU_ADDR, AXP_REG_POWERSTATUS);
276 if(r < 0)
277 return input_status;
278
279 /* Check for AC input */
280 if(r & 0x80)
281 input_status |= AXP_INPUT_AC;
282
283 /* Only report USB if ACIN and VBUS are not shorted */
284 if((r & 0x20) != 0 && (r & 0x02) == 0)
285 input_status |= AXP_INPUT_USB;
286
287#ifdef HAVE_BATTERY_SWITCH
288 /* Check for battery presence if target defines it as removable */
289 r = i2c_reg_read1(AXP_PMU_BUS, AXP_PMU_ADDR, AXP_REG_CHARGESTATUS);
290 if(r >= 0 && (r & 0x20) != 0)
291 input_status |= AXP_INPUT_BATTERY;
292#endif
293
294 return input_status;
295}
296
297int axp_adc_read(int adc)
298{
299 int value = axp_adc_read_raw(adc);
300 if(value == INT_MIN)
301 return INT_MIN;
302
303 return axp_adc_conv_raw(adc, value);
304}
305
306int axp_adc_read_raw(int adc)
307{
308 /* Don't give a reading if the ADC is not enabled */
309 if((axp.adc_enable & (1 << adc)) == 0)
310 return INT_MIN;
311
312 /* Read the ADC */
313 uint8_t buf[3];
314 int count = (adc == ADC_BATTERY_POWER) ? 3 : 2;
315 uint8_t reg = axp_adc_info[adc].reg;
316 int rc = i2c_reg_read(AXP_PMU_BUS, AXP_PMU_ADDR, reg, count, &buf[0]);
317 if(rc != I2C_STATUS_OK)
318 return INT_MIN;
319
320 /* Parse the value */
321 if(adc == ADC_BATTERY_POWER)
322 return (buf[0] << 16) | (buf[1] << 8) | buf[2];
323 else if(adc == ADC_CHARGE_CURRENT || adc == ADC_DISCHARGE_CURRENT)
324 return (buf[0] << 5) | (buf[1] & 0x1f);
325 else
326 return (buf[0] << 4) | (buf[1] & 0xf);
327}
328
329int axp_adc_conv_raw(int adc, int value)
330{
331 switch(adc) {
332 case ADC_ACIN_VOLTAGE:
333 case ADC_VBUS_VOLTAGE:
334 /* 0 mV ... 6.9615 mV, step 1.7 mV */
335 return value * 17 / 10;
336 case ADC_ACIN_CURRENT:
337 /* 0 mA ... 2.5594 A, step 0.625 mA */
338 return value * 5 / 8;
339 case ADC_VBUS_CURRENT:
340 /* 0 mA ... 1.5356 A, step 0.375 mA */
341 return value * 3 / 8;
342 case ADC_INTERNAL_TEMP:
343 /* -144.7 C ... 264.8 C, step 0.1 C */
344 return value - 1447;
345 case ADC_TS_INPUT:
346 /* 0 mV ... 3.276 V, step 0.8 mV */
347 return value * 4 / 5;
348 case ADC_BATTERY_VOLTAGE:
349 /* 0 mV ... 4.5045 V, step 1.1 mV */
350 return value * 11 / 10;
351 case ADC_CHARGE_CURRENT:
352 case ADC_DISCHARGE_CURRENT:
353 /* 0 mA to 4.095 A, step 0.5 mA */
354 return value / 2;
355 case ADC_APS_VOLTAGE:
356 /* 0 mV to 5.733 V, step 1.4 mV */
357 return value * 7 / 5;
358 case ADC_BATTERY_POWER:
359 /* 0 uW to 23.6404 W, step 0.55 uW */
360 return value * 11 / 20;
361 default:
362 /* Shouldn't happen */
363 return INT_MIN;
364 }
365}
366
367int axp_adc_get_enabled(void)
368{
369 return axp.adc_enable;
370}
371
372void axp_adc_set_enabled(int adc_bits)
373{
374 /* Ignore no-op */
375 if(adc_bits == axp.adc_enable)
376 return;
377
378 /* Compute the new register values */
379 const struct axp_adc_info* info = axp_adc_info;
380 uint8_t regs[2] = {0, 0};
381 for(int i = 0; i < NUM_ADC_CHANNELS; ++i) {
382 if(info[i].en_reg == 0xff)
383 continue;
384
385 if(adc_bits & (1 << i))
386 regs[info[i].en_reg - 0x82] |= 1 << info[i].en_bit;
387 }
388
389 /* These ADCs share an enable bit */
390 if(adc_bits & ((1 << ADC_CHARGE_CURRENT)|(1 << ADC_DISCHARGE_CURRENT))) {
391 adc_bits |= (1 << ADC_CHARGE_CURRENT);
392 adc_bits |= (1 << ADC_DISCHARGE_CURRENT);
393 }
394
395 /* Enable required bits for battery power ADC */
396 if(adc_bits & (1 << ADC_BATTERY_POWER)) {
397 regs[0] |= 1 << info[ADC_DISCHARGE_CURRENT].en_bit;
398 regs[0] |= 1 << info[ADC_BATTERY_VOLTAGE].en_bit;
399 }
400
401 /* Update the configuration */
402 i2c_reg_write(AXP_PMU_BUS, AXP_PMU_ADDR, AXP_REG_ADCENABLE1, 2, &regs[0]);
403 axp.adc_enable = adc_bits;
404}
405
406int axp_adc_get_rate(void)
407{
408 int r = i2c_reg_read1(AXP_PMU_BUS, AXP_PMU_ADDR, AXP_REG_ADCSAMPLERATE);
409 if(r < 0)
410 return AXP_ADC_RATE_100HZ; /* an arbitrary value */
411
412 return (r >> 6) & 3;
413}
414
415void axp_adc_set_rate(int rate)
416{
417 i2c_reg_modify1(AXP_PMU_BUS, AXP_PMU_ADDR, AXP_REG_ADCSAMPLERATE,
418 0xc0, (rate & 3) << 6, NULL);
419}
420
421static uint32_t axp_cc_parse(const uint8_t* buf)
422{
423 return ((uint32_t)buf[0] << 24) | (buf[1] << 16) | (buf[2] << 8) | buf[3];
424}
425
426void axp_cc_read(uint32_t* charge, uint32_t* discharge)
427{
428 uint8_t buf[8];
429 int rc = i2c_reg_read(AXP_PMU_BUS, AXP_PMU_ADDR,
430 AXP_REG_COULOMBCOUNTERBASE, 8, &buf[0]);
431 if(rc != I2C_STATUS_OK) {
432 if(charge)
433 *charge = 0;
434 if(discharge)
435 *discharge = 0;
436 return;
437 }
438
439 if(charge)
440 *charge = axp_cc_parse(&buf[0]);
441 if(discharge)
442 *discharge = axp_cc_parse(&buf[4]);
443}
444
445void axp_cc_clear(void)
446{
447 i2c_reg_setbit1(AXP_PMU_BUS, AXP_PMU_ADDR,
448 AXP_REG_COULOMBCOUNTERCTRL, 5, 1, NULL);
449}
450
451void axp_cc_enable(bool en)
452{
453 i2c_reg_setbit1(AXP_PMU_BUS, AXP_PMU_ADDR,
454 AXP_REG_COULOMBCOUNTERCTRL, 7, en ? 1 : 0, NULL);
455}
456
457bool axp_cc_is_enabled(void)
458{
459 int reg = i2c_reg_read1(AXP_PMU_BUS, AXP_PMU_ADDR,
460 AXP_REG_COULOMBCOUNTERCTRL);
461 return reg >= 0 && (reg & 0x40) != 0;
462}
463
464static const int chargecurrent_tbl[] = {
465 100, 190, 280, 360,
466 450, 550, 630, 700,
467 780, 880, 960, 1000,
468 1080, 1160, 1240, 1320,
469};
470
471static const int chargecurrent_tblsz = sizeof(chargecurrent_tbl)/sizeof(int);
472
473void axp_set_charge_current(int maxcurrent)
474{
475 /* Find the charge current just higher than maxcurrent */
476 int value = 0;
477 while(value < chargecurrent_tblsz &&
478 chargecurrent_tbl[value] <= maxcurrent)
479 ++value;
480
481 /* Select the next lower current, the greatest current <= maxcurrent */
482 if(value >= chargecurrent_tblsz)
483 value = chargecurrent_tblsz - 1;
484 else if(value > 0)
485 --value;
486
487 /* Don't issue i2c write if desired setting is already in use */
488 if(value == axp.chargecurrent_setting)
489 return;
490
491 /* Update register */
492 i2c_reg_modify1(AXP_PMU_BUS, AXP_PMU_ADDR,
493 AXP_REG_CHARGECONTROL1, 0x0f, value, NULL);
494 axp.chargecurrent_setting = value;
495}
496
497int axp_get_charge_current(void)
498{
499 if(axp.chargecurrent_setting < 0)
500 return chargecurrent_tbl[0];
501 else
502 return chargecurrent_tbl[axp.chargecurrent_setting];
503}
504
505void axp_power_off(void)
506{
507 /* Set the shutdown bit */
508 i2c_reg_setbit1(AXP_PMU_BUS, AXP_PMU_ADDR,
509 AXP_REG_SHUTDOWNLEDCTRL, 7, 1, NULL);
510}
511
512#ifndef BOOTLOADER
513enum {
514 AXP_DEBUG_CHIP_ID,
515 AXP_DEBUG_BATTERY_STATUS,
516 AXP_DEBUG_INPUT_STATUS,
517 AXP_DEBUG_CHARGE_CURRENT,
518 AXP_DEBUG_COULOMB_COUNTERS,
519 AXP_DEBUG_ADC_RATE,
520 AXP_DEBUG_FIRST_ADC,
521 AXP_DEBUG_FIRST_SUPPLY = AXP_DEBUG_FIRST_ADC + NUM_ADC_CHANNELS,
522 AXP_DEBUG_NUM_ENTRIES = AXP_DEBUG_FIRST_SUPPLY + AXP_NUM_SUPPLIES,
523};
524
525static int axp_debug_menu_cb(int action, struct gui_synclist* lists)
526{
527 (void)lists;
528
529 if(action == ACTION_NONE)
530 action = ACTION_REDRAW;
531
532 return action;
533}
534
535static const char* axp_debug_menu_get_name(int item, void* data,
536 char* buf, size_t buflen)
537{
538 (void)data;
539
540 static const char* const adc_names[] = {
541 "V_acin", "I_acin", "V_vbus", "I_vbus", "T_int",
542 "V_ts", "V_batt", "I_chrg", "I_dchg", "V_aps", "P_batt"
543 };
544
545 static const char* const adc_units[] = {
546 "mV", "mA", "mV", "mA", "C", "mV", "mV", "mA", "mA", "mV", "uW",
547 };
548
549 static const char* const supply_names[] = {
550 "DCDC1", "DCDC2", "DCDC3",
551 "LDO1", "LDO2", "LDO3", "LDO_IO0",
552 };
553
554 int adc = item - AXP_DEBUG_FIRST_ADC;
555 if(item >= AXP_DEBUG_FIRST_ADC && adc < NUM_ADC_CHANNELS) {
556 int raw_value = axp_adc_read_raw(adc);
557 if(raw_value == INT_MIN) {
558 snprintf(buf, buflen, "%s: [Disabled]", adc_names[adc]);
559 return buf;
560 }
561
562 int value = axp_adc_conv_raw(adc, raw_value);
563 if(adc == ADC_INTERNAL_TEMP) {
564 snprintf(buf, buflen, "%s: %d.%d %s", adc_names[adc],
565 value/10, value%10, adc_units[adc]);
566 } else {
567 snprintf(buf, buflen, "%s: %d %s", adc_names[adc],
568 value, adc_units[adc]);
569 }
570
571 return buf;
572 }
573
574 int supply = item - AXP_DEBUG_FIRST_SUPPLY;
575 if(item >= AXP_DEBUG_FIRST_SUPPLY && supply < AXP_NUM_SUPPLIES) {
576 int voltage = axp_supply_get_voltage(supply);
577 if(voltage == AXP_SUPPLY_NOT_PRESENT)
578 snprintf(buf, buflen, "%s: [Not Present]", supply_names[supply]);
579 else if(voltage == AXP_SUPPLY_DISABLED)
580 snprintf(buf, buflen, "%s: [Disabled]", supply_names[supply]);
581 else
582 snprintf(buf, buflen, "%s: %d mV", supply_names[supply], voltage);
583
584 return buf;
585 }
586
587 switch(item) {
588 case AXP_DEBUG_CHIP_ID: {
589 snprintf(buf, buflen, "Chip ID: %d (%02x) [Driver: AXP%d]",
590 axp.chip_id, axp.chip_id, HAVE_AXP_PMU);
591 return buf;
592 } break;
593
594 case AXP_DEBUG_BATTERY_STATUS: {
595 switch(axp_battery_status()) {
596 case AXP_BATT_FULL:
597 return "Battery: Full";
598 case AXP_BATT_CHARGING:
599 return "Battery: Charging";
600 case AXP_BATT_DISCHARGING:
601 return "Battery: Discharging";
602 default:
603 return "Battery: Unknown";
604 }
605 } break;
606
607 case AXP_DEBUG_INPUT_STATUS: {
608 int s = axp_input_status();
609 const char* ac = (s & AXP_INPUT_AC) ? " AC" : "";
610 const char* usb = (s & AXP_INPUT_USB) ? " USB" : "";
611 const char* batt = (s & AXP_INPUT_BATTERY) ? " Battery" : "";
612 snprintf(buf, buflen, "Inputs:%s%s%s", ac, usb, batt);
613 return buf;
614 } break;
615
616 case AXP_DEBUG_CHARGE_CURRENT: {
617 int current = axp_get_charge_current();
618 snprintf(buf, buflen, "Max charge current: %d mA", current);
619 return buf;
620 } break;
621
622 case AXP_DEBUG_COULOMB_COUNTERS: {
623 uint32_t charge, discharge;
624 axp_cc_read(&charge, &discharge);
625
626 snprintf(buf, buflen, "Coulomb counters: +%lu / -%lu",
627 (unsigned long)charge, (unsigned long)discharge);
628 return buf;
629 } break;
630
631 case AXP_DEBUG_ADC_RATE: {
632 int rate = 25 << axp_adc_get_rate();
633 snprintf(buf, buflen, "ADC sample rate: %d Hz", rate);
634 return buf;
635 } break;
636
637 default:
638 return "---";
639 }
640}
641
642bool axp_debug_menu(void)
643{
644 struct simplelist_info info;
645 simplelist_info_init(&info, "AXP debug", AXP_DEBUG_NUM_ENTRIES, NULL);
646 info.action_callback = axp_debug_menu_cb;
647 info.get_name = axp_debug_menu_get_name;
648 return simplelist_show_list(&info);
649}
650#endif /* !BOOTLOADER */
651
652/* This is basically the only valid implementation, so define it here */
653unsigned int power_input_status(void)
654{
655 unsigned int state = 0;
656 int input_status = axp_input_status();
657
658 if(input_status & AXP_INPUT_AC)
659 state |= POWER_INPUT_MAIN_CHARGER;
660
661 if(input_status & AXP_INPUT_USB)
662 state |= POWER_INPUT_USB_CHARGER;
663
664#ifdef HAVE_BATTERY_SWITCH
665 if(input_status & AXP_INPUT_BATTERY)
666 state |= POWER_INPUT_BATTERY;
667#endif
668
669 return state;
670}