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qemu/hw/sensor/max34451.c
Peter Maydell ad80e36744 hw, target: Add ResetType argument to hold and exit phase methods 
We pass a ResetType argument to the Resettable class enter
phase method, but we don't pass it to hold and exit, even though
the callsites have it readily available. This means that if
a device cared about the ResetType it would need to record it
in the enter phase method to use later on. Pass the type to
all three of the phase methods to avoid having to do that.

Commit created with

  for dir in hw target include; do \
      spatch --macro-file scripts/cocci-macro-file.h \
             --sp-file scripts/coccinelle/reset-type.cocci \
             --keep-comments --smpl-spacing --in-place \
             --include-headers --dir $dir; done

and no manual edits.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@amd.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Luc Michel <luc.michel@amd.com>
Message-id: 20240412160809.1260625-5-peter.maydell@linaro.org
2024-04-25 10:21:06 +01:00

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/*
* Maxim MAX34451 PMBus 16-Channel V/I monitor and 12-Channel Sequencer/Marginer
*
* Copyright 2021 Google LLC
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "qemu/osdep.h"
#include "hw/i2c/pmbus_device.h"
#include "hw/irq.h"
#include "migration/vmstate.h"
#include "qapi/error.h"
#include "qapi/visitor.h"
#include "qemu/log.h"
#include "qemu/module.h"
#define TYPE_MAX34451 "max34451"
#define MAX34451(obj) OBJECT_CHECK(MAX34451State, (obj), TYPE_MAX34451)
#define MAX34451_MFR_MODE 0xD1
#define MAX34451_MFR_PSEN_CONFIG 0xD2
#define MAX34451_MFR_VOUT_PEAK 0xD4
#define MAX34451_MFR_IOUT_PEAK 0xD5
#define MAX34451_MFR_TEMPERATURE_PEAK 0xD6
#define MAX34451_MFR_VOUT_MIN 0xD7
#define MAX34451_MFR_NV_LOG_CONFIG 0xD8
#define MAX34451_MFR_FAULT_RESPONSE 0xD9
#define MAX34451_MFR_FAULT_RETRY 0xDA
#define MAX34451_MFR_NV_FAULT_LOG 0xDC
#define MAX34451_MFR_TIME_COUNT 0xDD
#define MAX34451_MFR_MARGIN_CONFIG 0xDF
#define MAX34451_MFR_FW_SERIAL 0xE0
#define MAX34451_MFR_IOUT_AVG 0xE2
#define MAX34451_MFR_CHANNEL_CONFIG 0xE4
#define MAX34451_MFR_TON_SEQ_MAX 0xE6
#define MAX34451_MFR_PWM_CONFIG 0xE7
#define MAX34451_MFR_SEQ_CONFIG 0xE8
#define MAX34451_MFR_STORE_ALL 0xEE
#define MAX34451_MFR_RESTORE_ALL 0xEF
#define MAX34451_MFR_TEMP_SENSOR_CONFIG 0xF0
#define MAX34451_MFR_STORE_SINGLE 0xFC
#define MAX34451_MFR_CRC 0xFE
#define MAX34451_NUM_MARGINED_PSU 12
#define MAX34451_NUM_PWR_DEVICES 16
#define MAX34451_NUM_TEMP_DEVICES 5
#define MAX34451_NUM_PAGES 21
#define DEFAULT_OP_ON 0x80
#define DEFAULT_CAPABILITY 0x20
#define DEFAULT_ON_OFF_CONFIG 0x1a
#define DEFAULT_VOUT_MODE 0x40
#define DEFAULT_TEMPERATURE 2500
#define DEFAULT_SCALE 0x7FFF
#define DEFAULT_OV_LIMIT 0x7FFF
#define DEFAULT_OC_LIMIT 0x7FFF
#define DEFAULT_OT_LIMIT 0x7FFF
#define DEFAULT_VMIN 0x7FFF
#define DEFAULT_TON_FAULT_LIMIT 0xFFFF
#define DEFAULT_CHANNEL_CONFIG 0x20
#define DEFAULT_TEXT 0x3130313031303130
/**
* MAX34451State:
* @code: The command code received
* @page: Each page corresponds to a device monitored by the Max 34451
* The page register determines the available commands depending on device
___________________________________________________________________________
| 0 | Power supply monitored by RS0, controlled by PSEN0, and |
| | margined with PWM0. |
|_______|___________________________________________________________________|
| 1 | Power supply monitored by RS1, controlled by PSEN1, and |
| | margined with PWM1. |
|_______|___________________________________________________________________|
| 2 | Power supply monitored by RS2, controlled by PSEN2, and |
| | margined with PWM2. |
|_______|___________________________________________________________________|
| 3 | Power supply monitored by RS3, controlled by PSEN3, and |
| | margined with PWM3. |
|_______|___________________________________________________________________|
| 4 | Power supply monitored by RS4, controlled by PSEN4, and |
| | margined with PWM4. |
|_______|___________________________________________________________________|
| 5 | Power supply monitored by RS5, controlled by PSEN5, and |
| | margined with PWM5. |
|_______|___________________________________________________________________|
| 6 | Power supply monitored by RS6, controlled by PSEN6, and |
| | margined with PWM6. |
|_______|___________________________________________________________________|
| 7 | Power supply monitored by RS7, controlled by PSEN7, and |
| | margined with PWM7. |
|_______|___________________________________________________________________|
| 8 | Power supply monitored by RS8, controlled by PSEN8, and |
| | optionally margined by OUT0 of external DS4424 at I2C address A0h.|
|_______|___________________________________________________________________|
| 9 | Power supply monitored by RS9, controlled by PSEN9, and |
| | optionally margined by OUT1 of external DS4424 at I2C address A0h.|
|_______|___________________________________________________________________|
| 10 | Power supply monitored by RS10, controlled by PSEN10, and |
| | optionally margined by OUT2 of external DS4424 at I2C address A0h.|
|_______|___________________________________________________________________|
| 11 | Power supply monitored by RS11, controlled by PSEN11, and |
| | optionally margined by OUT3 of external DS4424 at I2C address A0h.|
|_______|___________________________________________________________________|
| 12 | ADC channel 12 (monitors voltage or current) or GPI. |
|_______|___________________________________________________________________|
| 13 | ADC channel 13 (monitors voltage or current) or GPI. |
|_______|___________________________________________________________________|
| 14 | ADC channel 14 (monitors voltage or current) or GPI. |
|_______|___________________________________________________________________|
| 15 | ADC channel 15 (monitors voltage or current) or GPI. |
|_______|___________________________________________________________________|
| 16 | Internal temperature sensor. |
|_______|___________________________________________________________________|
| 17 | External DS75LV temperature sensor with I2C address 90h. |
|_______|___________________________________________________________________|
| 18 | External DS75LV temperature sensor with I2C address 92h. |
|_______|___________________________________________________________________|
| 19 | External DS75LV temperature sensor with I2C address 94h. |
|_______|___________________________________________________________________|
| 20 | External DS75LV temperature sensor with I2C address 96h. |
|_______|___________________________________________________________________|
| 21=E2=80=93254| Reserved. |
|_______|___________________________________________________________________|
| 255 | Applies to all pages. |
|_______|___________________________________________________________________|
*
* @operation: Turn on and off power supplies
* @on_off_config: Configure the power supply on and off transition behaviour
* @write_protect: protect against changes to the device's memory
* @vout_margin_high: the voltage when OPERATION is set to margin high
* @vout_margin_low: the voltage when OPERATION is set to margin low
* @vout_scale: scale ADC reading to actual device reading if different
* @iout_cal_gain: set ratio of the voltage at the ADC input to sensed current
*/
typedef struct MAX34451State {
PMBusDevice parent;
uint16_t power_good_on[MAX34451_NUM_PWR_DEVICES];
uint16_t power_good_off[MAX34451_NUM_PWR_DEVICES];
uint16_t ton_delay[MAX34451_NUM_MARGINED_PSU];
uint16_t ton_max_fault_limit[MAX34451_NUM_MARGINED_PSU];
uint16_t toff_delay[MAX34451_NUM_MARGINED_PSU];
uint8_t status_mfr_specific[MAX34451_NUM_PWR_DEVICES];
/* Manufacturer specific function */
uint64_t mfr_location;
uint64_t mfr_date;
uint64_t mfr_serial;
uint16_t mfr_mode;
uint32_t psen_config[MAX34451_NUM_MARGINED_PSU];
uint16_t vout_peak[MAX34451_NUM_PWR_DEVICES];
uint16_t iout_peak[MAX34451_NUM_PWR_DEVICES];
uint16_t temperature_peak[MAX34451_NUM_TEMP_DEVICES];
uint16_t vout_min[MAX34451_NUM_PWR_DEVICES];
uint16_t nv_log_config;
uint32_t fault_response[MAX34451_NUM_PWR_DEVICES];
uint16_t fault_retry;
uint32_t fault_log;
uint32_t time_count;
uint16_t margin_config[MAX34451_NUM_MARGINED_PSU];
uint16_t fw_serial;
uint16_t iout_avg[MAX34451_NUM_PWR_DEVICES];
uint16_t channel_config[MAX34451_NUM_PWR_DEVICES];
uint16_t ton_seq_max[MAX34451_NUM_MARGINED_PSU];
uint32_t pwm_config[MAX34451_NUM_MARGINED_PSU];
uint32_t seq_config[MAX34451_NUM_MARGINED_PSU];
uint16_t temp_sensor_config[MAX34451_NUM_TEMP_DEVICES];
uint16_t store_single;
uint16_t crc;
} MAX34451State;
static void max34451_check_limits(MAX34451State *s)
{
PMBusDevice *pmdev = PMBUS_DEVICE(s);
pmbus_check_limits(pmdev);
for (int i = 0; i < MAX34451_NUM_PWR_DEVICES; i++) {
if (pmdev->pages[i].read_vout == 0) { /* PSU disabled */
continue;
}
if (pmdev->pages[i].read_vout > s->vout_peak[i]) {
s->vout_peak[i] = pmdev->pages[i].read_vout;
}
if (pmdev->pages[i].read_vout < s->vout_min[i]) {
s->vout_min[i] = pmdev->pages[i].read_vout;
}
if (pmdev->pages[i].read_iout > s->iout_peak[i]) {
s->iout_peak[i] = pmdev->pages[i].read_iout;
}
}
for (int i = 0; i < MAX34451_NUM_TEMP_DEVICES; i++) {
if (pmdev->pages[i + 16].read_temperature_1 > s->temperature_peak[i]) {
s->temperature_peak[i] = pmdev->pages[i + 16].read_temperature_1;
}
}
}
static uint8_t max34451_read_byte(PMBusDevice *pmdev)
{
MAX34451State *s = MAX34451(pmdev);
switch (pmdev->code) {
case PMBUS_POWER_GOOD_ON:
if (pmdev->page < 16) {
pmbus_send16(pmdev, s->power_good_on[pmdev->page]);
}
break;
case PMBUS_POWER_GOOD_OFF:
if (pmdev->page < 16) {
pmbus_send16(pmdev, s->power_good_off[pmdev->page]);
}
break;
case PMBUS_TON_DELAY:
if (pmdev->page < 12) {
pmbus_send16(pmdev, s->ton_delay[pmdev->page]);
}
break;
case PMBUS_TON_MAX_FAULT_LIMIT:
if (pmdev->page < 12) {
pmbus_send16(pmdev, s->ton_max_fault_limit[pmdev->page]);
}
break;
case PMBUS_TOFF_DELAY:
if (pmdev->page < 12) {
pmbus_send16(pmdev, s->toff_delay[pmdev->page]);
}
break;
case PMBUS_STATUS_MFR_SPECIFIC:
if (pmdev->page < 16) {
pmbus_send8(pmdev, s->status_mfr_specific[pmdev->page]);
}
break;
case PMBUS_MFR_ID:
pmbus_send8(pmdev, 0x4d); /* Maxim */
break;
case PMBUS_MFR_MODEL:
pmbus_send8(pmdev, 0x59);
break;
case PMBUS_MFR_LOCATION:
pmbus_send64(pmdev, s->mfr_location);
break;
case PMBUS_MFR_DATE:
pmbus_send64(pmdev, s->mfr_date);
break;
case PMBUS_MFR_SERIAL:
pmbus_send64(pmdev, s->mfr_serial);
break;
case MAX34451_MFR_MODE:
pmbus_send16(pmdev, s->mfr_mode);
break;
case MAX34451_MFR_PSEN_CONFIG:
if (pmdev->page < 12) {
pmbus_send32(pmdev, s->psen_config[pmdev->page]);
}
break;
case MAX34451_MFR_VOUT_PEAK:
if (pmdev->page < 16) {
pmbus_send16(pmdev, s->vout_peak[pmdev->page]);
}
break;
case MAX34451_MFR_IOUT_PEAK:
if (pmdev->page < 16) {
pmbus_send16(pmdev, s->iout_peak[pmdev->page]);
}
break;
case MAX34451_MFR_TEMPERATURE_PEAK:
if (15 < pmdev->page && pmdev->page < 21) {
pmbus_send16(pmdev, s->temperature_peak[pmdev->page % 16]);
} else {
pmbus_send16(pmdev, s->temperature_peak[0]);
}
break;
case MAX34451_MFR_VOUT_MIN:
if (pmdev->page < 16) {
pmbus_send16(pmdev, s->vout_min[pmdev->page]);
}
break;
case MAX34451_MFR_NV_LOG_CONFIG:
pmbus_send16(pmdev, s->nv_log_config);
break;
case MAX34451_MFR_FAULT_RESPONSE:
if (pmdev->page < 16) {
pmbus_send32(pmdev, s->fault_response[pmdev->page]);
}
break;
case MAX34451_MFR_FAULT_RETRY:
pmbus_send32(pmdev, s->fault_retry);
break;
case MAX34451_MFR_NV_FAULT_LOG:
pmbus_send32(pmdev, s->fault_log);
break;
case MAX34451_MFR_TIME_COUNT:
pmbus_send32(pmdev, s->time_count);
break;
case MAX34451_MFR_MARGIN_CONFIG:
if (pmdev->page < 12) {
pmbus_send16(pmdev, s->margin_config[pmdev->page]);
}
break;
case MAX34451_MFR_FW_SERIAL:
if (pmdev->page == 255) {
pmbus_send16(pmdev, 1); /* Firmware revision */
}
break;
case MAX34451_MFR_IOUT_AVG:
if (pmdev->page < 16) {
pmbus_send16(pmdev, s->iout_avg[pmdev->page]);
}
break;
case MAX34451_MFR_CHANNEL_CONFIG:
if (pmdev->page < 16) {
pmbus_send16(pmdev, s->channel_config[pmdev->page]);
}
break;
case MAX34451_MFR_TON_SEQ_MAX:
if (pmdev->page < 12) {
pmbus_send16(pmdev, s->ton_seq_max[pmdev->page]);
}
break;
case MAX34451_MFR_PWM_CONFIG:
if (pmdev->page < 12) {
pmbus_send32(pmdev, s->pwm_config[pmdev->page]);
}
break;
case MAX34451_MFR_SEQ_CONFIG:
if (pmdev->page < 12) {
pmbus_send32(pmdev, s->seq_config[pmdev->page]);
}
break;
case MAX34451_MFR_TEMP_SENSOR_CONFIG:
if (15 < pmdev->page && pmdev->page < 21) {
pmbus_send32(pmdev, s->temp_sensor_config[pmdev->page % 16]);
}
break;
case MAX34451_MFR_STORE_SINGLE:
pmbus_send32(pmdev, s->store_single);
break;
case MAX34451_MFR_CRC:
pmbus_send32(pmdev, s->crc);
break;
default:
qemu_log_mask(LOG_GUEST_ERROR,
"%s: reading from unsupported register: 0x%02x\n",
__func__, pmdev->code);
break;
}
return 0xFF;
}
static int max34451_write_data(PMBusDevice *pmdev, const uint8_t *buf,
uint8_t len)
{
MAX34451State *s = MAX34451(pmdev);
if (len == 0) {
qemu_log_mask(LOG_GUEST_ERROR, "%s: writing empty data\n", __func__);
return -1;
}
pmdev->code = buf[0]; /* PMBus command code */
if (len == 1) {
return 0;
}
/* Exclude command code from buffer */
buf++;
len--;
uint8_t index = pmdev->page;
switch (pmdev->code) {
case MAX34451_MFR_STORE_ALL:
case MAX34451_MFR_RESTORE_ALL:
case MAX34451_MFR_STORE_SINGLE:
/*
* TODO: hardware behaviour is to move the contents of volatile
* memory to non-volatile memory.
*/
break;
case PMBUS_POWER_GOOD_ON: /* R/W word */
if (pmdev->page < MAX34451_NUM_PWR_DEVICES) {
s->power_good_on[pmdev->page] = pmbus_receive16(pmdev);
}
break;
case PMBUS_POWER_GOOD_OFF: /* R/W word */
if (pmdev->page < MAX34451_NUM_PWR_DEVICES) {
s->power_good_off[pmdev->page] = pmbus_receive16(pmdev);
}
break;
case PMBUS_TON_DELAY: /* R/W word */
if (pmdev->page < 12) {
s->ton_delay[pmdev->page] = pmbus_receive16(pmdev);
}
break;
case PMBUS_TON_MAX_FAULT_LIMIT: /* R/W word */
if (pmdev->page < 12) {
s->ton_max_fault_limit[pmdev->page]
= pmbus_receive16(pmdev);
}
break;
case PMBUS_TOFF_DELAY: /* R/W word */
if (pmdev->page < 12) {
s->toff_delay[pmdev->page] = pmbus_receive16(pmdev);
}
break;
case PMBUS_MFR_LOCATION: /* R/W 64 */
s->mfr_location = pmbus_receive64(pmdev);
break;
case PMBUS_MFR_DATE: /* R/W 64 */
s->mfr_date = pmbus_receive64(pmdev);
break;
case PMBUS_MFR_SERIAL: /* R/W 64 */
s->mfr_serial = pmbus_receive64(pmdev);
break;
case MAX34451_MFR_MODE: /* R/W word */
s->mfr_mode = pmbus_receive16(pmdev);
break;
case MAX34451_MFR_PSEN_CONFIG: /* R/W 32 */
if (pmdev->page < 12) {
s->psen_config[pmdev->page] = pmbus_receive32(pmdev);
}
break;
case MAX34451_MFR_VOUT_PEAK: /* R/W word */
if (pmdev->page < 16) {
s->vout_peak[pmdev->page] = pmbus_receive16(pmdev);
}
break;
case MAX34451_MFR_IOUT_PEAK: /* R/W word */
if (pmdev->page < 16) {
s->iout_peak[pmdev->page] = pmbus_receive16(pmdev);
}
break;
case MAX34451_MFR_TEMPERATURE_PEAK: /* R/W word */
if (15 < pmdev->page && pmdev->page < 21) {
s->temperature_peak[pmdev->page % 16]
= pmbus_receive16(pmdev);
}
break;
case MAX34451_MFR_VOUT_MIN: /* R/W word */
if (pmdev->page < 16) {
s->vout_min[pmdev->page] = pmbus_receive16(pmdev);
}
break;
case MAX34451_MFR_NV_LOG_CONFIG: /* R/W word */
s->nv_log_config = pmbus_receive16(pmdev);
break;
case MAX34451_MFR_FAULT_RESPONSE: /* R/W 32 */
if (pmdev->page < 16) {
s->fault_response[pmdev->page] = pmbus_receive32(pmdev);
}
break;
case MAX34451_MFR_FAULT_RETRY: /* R/W word */
s->fault_retry = pmbus_receive16(pmdev);
break;
case MAX34451_MFR_TIME_COUNT: /* R/W 32 */
s->time_count = pmbus_receive32(pmdev);
break;
case MAX34451_MFR_MARGIN_CONFIG: /* R/W word */
if (pmdev->page < 12) {
s->margin_config[pmdev->page] = pmbus_receive16(pmdev);
}
break;
case MAX34451_MFR_CHANNEL_CONFIG: /* R/W word */
if (pmdev->page < 16) {
s->channel_config[pmdev->page] = pmbus_receive16(pmdev);
}
break;
case MAX34451_MFR_TON_SEQ_MAX: /* R/W word */
if (pmdev->page < 12) {
s->ton_seq_max[pmdev->page] = pmbus_receive16(pmdev);
}
break;
case MAX34451_MFR_PWM_CONFIG: /* R/W 32 */
if (pmdev->page < 12) {
s->pwm_config[pmdev->page] = pmbus_receive32(pmdev);
}
break;
case MAX34451_MFR_SEQ_CONFIG: /* R/W 32 */
if (pmdev->page < 12) {
s->seq_config[pmdev->page] = pmbus_receive32(pmdev);
}
break;
case MAX34451_MFR_TEMP_SENSOR_CONFIG: /* R/W word */
if (15 < pmdev->page && pmdev->page < 21) {
s->temp_sensor_config[pmdev->page % 16]
= pmbus_receive16(pmdev);
}
break;
case MAX34451_MFR_CRC: /* R/W word */
s->crc = pmbus_receive16(pmdev);
break;
case MAX34451_MFR_NV_FAULT_LOG:
case MAX34451_MFR_FW_SERIAL:
case MAX34451_MFR_IOUT_AVG:
/* Read only commands */
pmdev->pages[index].status_word |= PMBUS_STATUS_CML;
pmdev->pages[index].status_cml |= PB_CML_FAULT_INVALID_DATA;
qemu_log_mask(LOG_GUEST_ERROR,
"%s: writing to read-only register 0x%02x\n",
__func__, pmdev->code);
break;
default:
qemu_log_mask(LOG_GUEST_ERROR,
"%s: writing to unsupported register: 0x%02x\n",
__func__, pmdev->code);
break;
}
return 0;
}
static void max34451_get(Object *obj, Visitor *v, const char *name,
void *opaque, Error **errp)
{
visit_type_uint16(v, name, (uint16_t *)opaque, errp);
}
static void max34451_set(Object *obj, Visitor *v, const char *name,
void *opaque, Error **errp)
{
MAX34451State *s = MAX34451(obj);
uint16_t *internal = opaque;
uint16_t value;
if (!visit_type_uint16(v, name, &value, errp)) {
return;
}
*internal = value;
max34451_check_limits(s);
}
/* used to init uint16_t arrays */
static inline void *memset_word(void *s, uint16_t c, size_t n)
{
size_t i;
uint16_t *p = s;
for (i = 0; i < n; i++) {
p[i] = c;
}
return s;
}
static void max34451_exit_reset(Object *obj, ResetType type)
{
PMBusDevice *pmdev = PMBUS_DEVICE(obj);
MAX34451State *s = MAX34451(obj);
pmdev->capability = DEFAULT_CAPABILITY;
for (int i = 0; i < MAX34451_NUM_PAGES; i++) {
pmdev->pages[i].operation = DEFAULT_OP_ON;
pmdev->pages[i].on_off_config = DEFAULT_ON_OFF_CONFIG;
pmdev->pages[i].revision = 0x11;
pmdev->pages[i].vout_mode = DEFAULT_VOUT_MODE;
}
for (int i = 0; i < MAX34451_NUM_PWR_DEVICES; i++) {
pmdev->pages[i].vout_scale_monitor = DEFAULT_SCALE;
pmdev->pages[i].vout_ov_fault_limit = DEFAULT_OV_LIMIT;
pmdev->pages[i].vout_ov_warn_limit = DEFAULT_OV_LIMIT;
pmdev->pages[i].iout_oc_warn_limit = DEFAULT_OC_LIMIT;
pmdev->pages[i].iout_oc_fault_limit = DEFAULT_OC_LIMIT;
}
for (int i = 0; i < MAX34451_NUM_MARGINED_PSU; i++) {
pmdev->pages[i].ton_max_fault_limit = DEFAULT_TON_FAULT_LIMIT;
}
for (int i = 16; i < MAX34451_NUM_TEMP_DEVICES + 16; i++) {
pmdev->pages[i].read_temperature_1 = DEFAULT_TEMPERATURE;
pmdev->pages[i].ot_warn_limit = DEFAULT_OT_LIMIT;
pmdev->pages[i].ot_fault_limit = DEFAULT_OT_LIMIT;
}
memset_word(s->ton_max_fault_limit, DEFAULT_TON_FAULT_LIMIT,
MAX34451_NUM_MARGINED_PSU);
memset_word(s->channel_config, DEFAULT_CHANNEL_CONFIG,
MAX34451_NUM_PWR_DEVICES);
memset_word(s->vout_min, DEFAULT_VMIN, MAX34451_NUM_PWR_DEVICES);
s->mfr_location = DEFAULT_TEXT;
s->mfr_date = DEFAULT_TEXT;
s->mfr_serial = DEFAULT_TEXT;
}
static const VMStateDescription vmstate_max34451 = {
.name = TYPE_MAX34451,
.version_id = 0,
.minimum_version_id = 0,
.fields = (const VMStateField[]){
VMSTATE_PMBUS_DEVICE(parent, MAX34451State),
VMSTATE_UINT16_ARRAY(power_good_on, MAX34451State,
MAX34451_NUM_PWR_DEVICES),
VMSTATE_UINT16_ARRAY(power_good_off, MAX34451State,
MAX34451_NUM_PWR_DEVICES),
VMSTATE_UINT16_ARRAY(ton_delay, MAX34451State,
MAX34451_NUM_MARGINED_PSU),
VMSTATE_UINT16_ARRAY(ton_max_fault_limit, MAX34451State,
MAX34451_NUM_MARGINED_PSU),
VMSTATE_UINT16_ARRAY(toff_delay, MAX34451State,
MAX34451_NUM_MARGINED_PSU),
VMSTATE_UINT8_ARRAY(status_mfr_specific, MAX34451State,
MAX34451_NUM_PWR_DEVICES),
VMSTATE_UINT64(mfr_location, MAX34451State),
VMSTATE_UINT64(mfr_date, MAX34451State),
VMSTATE_UINT64(mfr_serial, MAX34451State),
VMSTATE_UINT16(mfr_mode, MAX34451State),
VMSTATE_UINT32_ARRAY(psen_config, MAX34451State,
MAX34451_NUM_MARGINED_PSU),
VMSTATE_UINT16_ARRAY(vout_peak, MAX34451State,
MAX34451_NUM_PWR_DEVICES),
VMSTATE_UINT16_ARRAY(iout_peak, MAX34451State,
MAX34451_NUM_PWR_DEVICES),
VMSTATE_UINT16_ARRAY(temperature_peak, MAX34451State,
MAX34451_NUM_TEMP_DEVICES),
VMSTATE_UINT16_ARRAY(vout_min, MAX34451State, MAX34451_NUM_PWR_DEVICES),
VMSTATE_UINT16(nv_log_config, MAX34451State),
VMSTATE_UINT32_ARRAY(fault_response, MAX34451State,
MAX34451_NUM_PWR_DEVICES),
VMSTATE_UINT16(fault_retry, MAX34451State),
VMSTATE_UINT32(fault_log, MAX34451State),
VMSTATE_UINT32(time_count, MAX34451State),
VMSTATE_UINT16_ARRAY(margin_config, MAX34451State,
MAX34451_NUM_MARGINED_PSU),
VMSTATE_UINT16(fw_serial, MAX34451State),
VMSTATE_UINT16_ARRAY(iout_avg, MAX34451State, MAX34451_NUM_PWR_DEVICES),
VMSTATE_UINT16_ARRAY(channel_config, MAX34451State,
MAX34451_NUM_PWR_DEVICES),
VMSTATE_UINT16_ARRAY(ton_seq_max, MAX34451State,
MAX34451_NUM_MARGINED_PSU),
VMSTATE_UINT32_ARRAY(pwm_config, MAX34451State,
MAX34451_NUM_MARGINED_PSU),
VMSTATE_UINT32_ARRAY(seq_config, MAX34451State,
MAX34451_NUM_MARGINED_PSU),
VMSTATE_UINT16_ARRAY(temp_sensor_config, MAX34451State,
MAX34451_NUM_TEMP_DEVICES),
VMSTATE_UINT16(store_single, MAX34451State),
VMSTATE_UINT16(crc, MAX34451State),
VMSTATE_END_OF_LIST()
}
};
static void max34451_init(Object *obj)
{
PMBusDevice *pmdev = PMBUS_DEVICE(obj);
uint64_t psu_flags = PB_HAS_VOUT | PB_HAS_IOUT | PB_HAS_VOUT_MODE |
PB_HAS_IOUT_GAIN;
for (int i = 0; i < MAX34451_NUM_PWR_DEVICES; i++) {
pmbus_page_config(pmdev, i, psu_flags);
}
for (int i = 0; i < MAX34451_NUM_MARGINED_PSU; i++) {
pmbus_page_config(pmdev, i, psu_flags | PB_HAS_VOUT_MARGIN);
}
for (int i = 16; i < MAX34451_NUM_TEMP_DEVICES + 16; i++) {
pmbus_page_config(pmdev, i, PB_HAS_TEMPERATURE | PB_HAS_VOUT_MODE);
}
/* get and set the voltage in millivolts, max is 32767 mV */
for (int i = 0; i < MAX34451_NUM_PWR_DEVICES; i++) {
object_property_add(obj, "vout[*]", "uint16",
max34451_get,
max34451_set, NULL, &pmdev->pages[i].read_vout);
}
/*
* get and set the temperature of the internal temperature sensor in
* centidegrees Celsius i.e.: 2500 -> 25.00 C, max is 327.67 C
*/
for (int i = 0; i < MAX34451_NUM_TEMP_DEVICES; i++) {
object_property_add(obj, "temperature[*]", "uint16",
max34451_get,
max34451_set,
NULL,
&pmdev->pages[i + 16].read_temperature_1);
}
}
static void max34451_class_init(ObjectClass *klass, void *data)
{
ResettableClass *rc = RESETTABLE_CLASS(klass);
DeviceClass *dc = DEVICE_CLASS(klass);
PMBusDeviceClass *k = PMBUS_DEVICE_CLASS(klass);
dc->desc = "Maxim MAX34451 16-Channel V/I monitor";
dc->vmsd = &vmstate_max34451;
k->write_data = max34451_write_data;
k->receive_byte = max34451_read_byte;
k->device_num_pages = MAX34451_NUM_PAGES;
rc->phases.exit = max34451_exit_reset;
}
static const TypeInfo max34451_info = {
.name = TYPE_MAX34451,
.parent = TYPE_PMBUS_DEVICE,
.instance_size = sizeof(MAX34451State),
.instance_init = max34451_init,
.class_init = max34451_class_init,
};
static void max34451_register_types(void)
{
type_register_static(&max34451_info);
}
type_init(max34451_register_types)
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