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|
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Maxim MAX31785 PMBus 6-Channel Fan Controller
*
* Datasheet:
* https://datasheets.maximintegrated.com/en/ds/MAX31785.pdf
*
* Copyright(c) 2022 Qualcomm Innovation Center, Inc. All rights reserved.
*/
#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_MAX31785 "max31785"
#define MAX31785(obj) OBJECT_CHECK(MAX31785State, (obj), TYPE_MAX31785)
/* MAX31785 mfr specific PMBus commands */
#define MAX31785_MFR_MODE 0xD1
#define MAX31785_MFR_PSEN_CONFIG 0xD2
#define MAX31785_MFR_VOUT_PEAK 0xD4
#define MAX31785_MFR_TEMPERATURE_PEAK 0xD6
#define MAX31785_MFR_VOUT_MIN 0xD7
#define MAX31785_MFR_FAULT_RESPONSE 0xD9
#define MAX31785_MFR_NV_FAULT_LOG 0xDC
#define MAX31785_MFR_TIME_COUNT 0xDD
#define MAX31785_MFR_TEMP_SENSOR_CONFIG 0xF0
#define MAX31785_MFR_FAN_CONFIG 0xF1
#define MAX31785_MFR_FAN_LUT 0xF2
#define MAX31785_MFR_READ_FAN_PWM 0xF3
#define MAX31785_MFR_FAN_FAULT_LIMIT 0xF5
#define MAX31785_MFR_FAN_WARN_LIMIT 0xF6
#define MAX31785_MFR_FAN_RUN_TIME 0xF7
#define MAX31785_MFR_FAN_PWM_AVG 0xF8
#define MAX31785_MFR_FAN_PWM2RPM 0xF9
/* defaults as per the data sheet */
#define MAX31785_DEFAULT_CAPABILITY 0x10
#define MAX31785_DEFAULT_VOUT_MODE 0x40
#define MAX31785_DEFAULT_VOUT_SCALE_MONITOR 0x7FFF
#define MAX31785_DEFAULT_FAN_COMMAND_1 0x7FFF
#define MAX31785_DEFAULT_OV_FAULT_LIMIT 0x7FFF
#define MAX31785_DEFAULT_OV_WARN_LIMIT 0x7FFF
#define MAX31785_DEFAULT_OT_FAULT_LIMIT 0x7FFF
#define MAX31785_DEFAULT_OT_WARN_LIMIT 0x7FFF
#define MAX31785_DEFAULT_PMBUS_REVISION 0x11
#define MAX31785_DEFAULT_MFR_ID 0x4D
#define MAX31785_DEFAULT_MFR_MODEL 0x53
#define MAX31785_DEFAULT_MFR_REVISION 0x3030
#define MAX31785A_DEFAULT_MFR_REVISION 0x3040
#define MAX31785B_DEFAULT_MFR_REVISION 0x3061
#define MAX31785B_DEFAULT_MFR_TEMPERATURE_PEAK 0x8000
#define MAX31785B_DEFAULT_MFR_VOUT_MIN 0x7FFF
#define MAX31785_DEFAULT_TEXT 0x3130313031303130
/* MAX31785 pages */
#define MAX31785_TOTAL_NUM_PAGES 23
#define MAX31785_FAN_PAGES 6
#define MAX31785_MIN_FAN_PAGE 0
#define MAX31785_MAX_FAN_PAGE 5
#define MAX31785_MIN_TEMP_PAGE 6
#define MAX31785_MAX_TEMP_PAGE 16
#define MAX31785_MIN_ADC_VOLTAGE_PAGE 17
#define MAX31785_MAX_ADC_VOLTAGE_PAGE 22
/* FAN_CONFIG_1_2 */
#define MAX31785_MFR_FAN_CONFIG 0xF1
#define MAX31785_FAN_CONFIG_ENABLE BIT(7)
#define MAX31785_FAN_CONFIG_RPM_PWM BIT(6)
#define MAX31785_FAN_CONFIG_PULSE(pulse) (pulse << 4)
#define MAX31785_DEFAULT_FAN_CONFIG_1_2(pulse) \
(MAX31785_FAN_CONFIG_ENABLE | MAX31785_FAN_CONFIG_PULSE(pulse))
#define MAX31785_DEFAULT_MFR_FAN_CONFIG 0x0000
/* fan speed in RPM */
#define MAX31785_DEFAULT_FAN_SPEED 0x7fff
#define MAX31785_DEFAULT_FAN_STATUS 0x00
#define MAX31785_DEFAULT_FAN_MAX_PWM 0x2710
/*
* MAX31785State:
* @code: The command code received
* @page: Each page corresponds to a device monitored by the Max 31785
* The page register determines the available commands depending on device
* _____________________________________________________________________________
* | 0 | Fan Connected to PWM0 |
* |_______|___________________________________________________________________|
* | 1 | Fan Connected to PWM1 |
* |_______|___________________________________________________________________|
* | 2 | Fan Connected to PWM2 |
* |_______|___________________________________________________________________|
* | 3 | Fan Connected to PWM3 |
* |_______|___________________________________________________________________|
* | 4 | Fan Connected to PWM4 |
* |_______|___________________________________________________________________|
* | 5 | Fan Connected to PWM5 |
* |_______|___________________________________________________________________|
* | 6 | Remote Thermal Diode Connected to ADC 0 |
* |_______|___________________________________________________________________|
* | 7 | Remote Thermal Diode Connected to ADC 1 |
* |_______|___________________________________________________________________|
* | 8 | Remote Thermal Diode Connected to ADC 2 |
* |_______|___________________________________________________________________|
* | 9 | Remote Thermal Diode Connected to ADC 3 |
* |_______|___________________________________________________________________|
* | 10 | Remote Thermal Diode Connected to ADC 4 |
* |_______|___________________________________________________________________|
* | 11 | Remote Thermal Diode Connected to ADC 5 |
* |_______|___________________________________________________________________|
* | 12 | Internal Temperature Sensor |
* |_______|___________________________________________________________________|
* | 13 | Remote I2C Temperature Sensor with Address 0 |
* |_______|___________________________________________________________________|
* | 14 | Remote I2C Temperature Sensor with Address 1 |
* |_______|___________________________________________________________________|
* | 15 | Remote I2C Temperature Sensor with Address 2 |
* |_______|___________________________________________________________________|
* | 16 | Remote I2C Temperature Sensor with Address 3 |
* |_______|___________________________________________________________________|
* | 17 | Remote I2C Temperature Sensor with Address 4 |
* |_______|___________________________________________________________________|
* | 17 | Remote Voltage Connected to ADC0 |
* |_______|___________________________________________________________________|
* | 18 | Remote Voltage Connected to ADC1 |
* |_______|___________________________________________________________________|
* | 19 | Remote Voltage Connected to ADC2 |
* |_______|___________________________________________________________________|
* | 20 | Remote Voltage Connected to ADC3 |
* |_______|___________________________________________________________________|
* | 21 | Remote Voltage Connected to ADC4 |
* |_______|___________________________________________________________________|
* | 22 | Remote Voltage Connected to ADC5 |
* |_______|___________________________________________________________________|
* |23-254 | Reserved |
* |_______|___________________________________________________________________|
* | 255 | Applies to all pages |
* |_______|___________________________________________________________________|
*/
/* Place holder to save the max31785 mfr specific registers */
typedef struct MAX31785State {
PMBusDevice parent;
uint16_t mfr_mode[MAX31785_TOTAL_NUM_PAGES];
uint16_t vout_peak[MAX31785_TOTAL_NUM_PAGES];
uint16_t temperature_peak[MAX31785_TOTAL_NUM_PAGES];
uint16_t vout_min[MAX31785_TOTAL_NUM_PAGES];
uint8_t fault_response[MAX31785_TOTAL_NUM_PAGES];
uint32_t time_count[MAX31785_TOTAL_NUM_PAGES];
uint16_t temp_sensor_config[MAX31785_TOTAL_NUM_PAGES];
uint16_t fan_config[MAX31785_TOTAL_NUM_PAGES];
uint16_t read_fan_pwm[MAX31785_TOTAL_NUM_PAGES];
uint16_t fan_fault_limit[MAX31785_TOTAL_NUM_PAGES];
uint16_t fan_warn_limit[MAX31785_TOTAL_NUM_PAGES];
uint16_t fan_run_time[MAX31785_TOTAL_NUM_PAGES];
uint16_t fan_pwm_avg[MAX31785_TOTAL_NUM_PAGES];
uint64_t fan_pwm2rpm[MAX31785_TOTAL_NUM_PAGES];
uint64_t mfr_location;
uint64_t mfr_date;
uint64_t mfr_serial;
uint16_t mfr_revision;
} MAX31785State;
static uint8_t max31785_read_byte(PMBusDevice *pmdev)
{
MAX31785State *s = MAX31785(pmdev);
switch (pmdev->code) {
case PMBUS_FAN_CONFIG_1_2:
if (pmdev->page <= MAX31785_MAX_FAN_PAGE) {
pmbus_send8(pmdev, pmdev->pages[pmdev->page].fan_config_1_2);
}
break;
case PMBUS_FAN_COMMAND_1:
if (pmdev->page <= MAX31785_MAX_FAN_PAGE) {
pmbus_send16(pmdev, pmdev->pages[pmdev->page].fan_command_1);
}
break;
case PMBUS_READ_FAN_SPEED_1:
if (pmdev->page <= MAX31785_MAX_FAN_PAGE) {
pmbus_send16(pmdev, pmdev->pages[pmdev->page].read_fan_speed_1);
}
break;
case PMBUS_STATUS_FANS_1_2:
if (pmdev->page <= MAX31785_MAX_FAN_PAGE) {
pmbus_send16(pmdev, pmdev->pages[pmdev->page].status_fans_1_2);
}
break;
case PMBUS_MFR_REVISION:
pmbus_send16(pmdev, MAX31785_DEFAULT_MFR_REVISION);
break;
case PMBUS_MFR_ID:
pmbus_send8(pmdev, 0x4d); /* Maxim */
break;
case PMBUS_MFR_MODEL:
pmbus_send8(pmdev, 0x53);
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 MAX31785_MFR_MODE:
pmbus_send16(pmdev, s->mfr_mode[pmdev->page]);
break;
case MAX31785_MFR_VOUT_PEAK:
if ((pmdev->page >= MAX31785_MIN_ADC_VOLTAGE_PAGE) &&
(pmdev->page <= MAX31785_MAX_ADC_VOLTAGE_PAGE)) {
pmbus_send16(pmdev, s->vout_peak[pmdev->page]);
}
break;
case MAX31785_MFR_TEMPERATURE_PEAK:
if ((pmdev->page >= MAX31785_MIN_TEMP_PAGE) &&
(pmdev->page <= MAX31785_MAX_TEMP_PAGE)) {
pmbus_send16(pmdev, s->temperature_peak[pmdev->page]);
}
break;
case MAX31785_MFR_VOUT_MIN:
if ((pmdev->page >= MAX31785_MIN_ADC_VOLTAGE_PAGE) &&
(pmdev->page <= MAX31785_MAX_ADC_VOLTAGE_PAGE)) {
pmbus_send16(pmdev, s->vout_min[pmdev->page]);
}
break;
case MAX31785_MFR_FAULT_RESPONSE:
pmbus_send8(pmdev, s->fault_response[pmdev->page]);
break;
case MAX31785_MFR_TIME_COUNT: /* R/W 32 */
pmbus_send32(pmdev, s->time_count[pmdev->page]);
break;
case MAX31785_MFR_TEMP_SENSOR_CONFIG: /* R/W 16 */
if ((pmdev->page >= MAX31785_MIN_TEMP_PAGE) &&
(pmdev->page <= MAX31785_MAX_TEMP_PAGE)) {
pmbus_send16(pmdev, s->temp_sensor_config[pmdev->page]);
}
break;
case MAX31785_MFR_FAN_CONFIG: /* R/W 16 */
if (pmdev->page <= MAX31785_MAX_FAN_PAGE) {
pmbus_send16(pmdev, s->fan_config[pmdev->page]);
}
break;
case MAX31785_MFR_READ_FAN_PWM: /* R/W 16 */
if (pmdev->page <= MAX31785_MAX_FAN_PAGE) {
pmbus_send16(pmdev, s->read_fan_pwm[pmdev->page]);
}
break;
case MAX31785_MFR_FAN_FAULT_LIMIT: /* R/W 16 */
if (pmdev->page <= MAX31785_MAX_FAN_PAGE) {
pmbus_send16(pmdev, s->fan_fault_limit[pmdev->page]);
}
break;
case MAX31785_MFR_FAN_WARN_LIMIT: /* R/W 16 */
if (pmdev->page <= MAX31785_MAX_FAN_PAGE) {
pmbus_send16(pmdev, s->fan_warn_limit[pmdev->page]);
}
break;
case MAX31785_MFR_FAN_RUN_TIME: /* R/W 16 */
if (pmdev->page <= MAX31785_MAX_FAN_PAGE) {
pmbus_send16(pmdev, s->fan_run_time[pmdev->page]);
}
break;
case MAX31785_MFR_FAN_PWM_AVG: /* R/W 16 */
if (pmdev->page <= MAX31785_MAX_FAN_PAGE) {
pmbus_send16(pmdev, s->fan_pwm_avg[pmdev->page]);
}
break;
case MAX31785_MFR_FAN_PWM2RPM: /* R/W 64 */
if (pmdev->page <= MAX31785_MAX_FAN_PAGE) {
pmbus_send64(pmdev, s->fan_pwm2rpm[pmdev->page]);
}
break;
default:
qemu_log_mask(LOG_GUEST_ERROR,
"%s: reading from unsupported register: 0x%02x\n",
__func__, pmdev->code);
break;
}
return 0xFF;
}
static int max31785_write_data(PMBusDevice *pmdev, const uint8_t *buf,
uint8_t len)
{
MAX31785State *s = MAX31785(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--;
switch (pmdev->code) {
case PMBUS_FAN_CONFIG_1_2:
if (pmdev->page <= MAX31785_MAX_FAN_PAGE) {
pmdev->pages[pmdev->page].fan_config_1_2 = pmbus_receive8(pmdev);
}
break;
case PMBUS_FAN_COMMAND_1:
if (pmdev->page <= MAX31785_MAX_FAN_PAGE) {
pmdev->pages[pmdev->page].fan_command_1 = pmbus_receive16(pmdev);
pmdev->pages[pmdev->page].read_fan_speed_1 =
((MAX31785_DEFAULT_FAN_SPEED / MAX31785_DEFAULT_FAN_MAX_PWM) *
pmdev->pages[pmdev->page].fan_command_1);
}
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 MAX31785_MFR_MODE: /* R/W word */
s->mfr_mode[pmdev->page] = pmbus_receive16(pmdev);
break;
case MAX31785_MFR_VOUT_PEAK: /* R/W word */
if ((pmdev->page >= MAX31785_MIN_ADC_VOLTAGE_PAGE) &&
(pmdev->page <= MAX31785_MAX_ADC_VOLTAGE_PAGE)) {
s->vout_peak[pmdev->page] = pmbus_receive16(pmdev);
}
break;
case MAX31785_MFR_TEMPERATURE_PEAK: /* R/W word */
if ((pmdev->page >= 6) && (pmdev->page <= 16)) {
s->temperature_peak[pmdev->page] = pmbus_receive16(pmdev);
}
break;
case MAX31785_MFR_VOUT_MIN: /* R/W word */
if ((pmdev->page >= MAX31785_MIN_ADC_VOLTAGE_PAGE) &&
(pmdev->page <= MAX31785_MAX_ADC_VOLTAGE_PAGE)) {
s->vout_min[pmdev->page] = pmbus_receive16(pmdev);
}
break;
case MAX31785_MFR_FAULT_RESPONSE: /* R/W 8 */
s->fault_response[pmdev->page] = pmbus_receive8(pmdev);
break;
case MAX31785_MFR_TIME_COUNT: /* R/W 32 */
s->time_count[pmdev->page] = pmbus_receive32(pmdev);
break;
case MAX31785_MFR_TEMP_SENSOR_CONFIG: /* R/W 16 */
if ((pmdev->page >= MAX31785_MIN_TEMP_PAGE) &&
(pmdev->page <= MAX31785_MAX_TEMP_PAGE)) {
s->temp_sensor_config[pmdev->page] = pmbus_receive16(pmdev);
}
break;
case MAX31785_MFR_FAN_CONFIG: /* R/W 16 */
if (pmdev->page <= MAX31785_MAX_FAN_PAGE) {
s->fan_config[pmdev->page] = pmbus_receive16(pmdev);
}
break;
case MAX31785_MFR_FAN_FAULT_LIMIT: /* R/W 16 */
if (pmdev->page <= MAX31785_MAX_FAN_PAGE) {
s->fan_fault_limit[pmdev->page] = pmbus_receive16(pmdev);
}
break;
case MAX31785_MFR_FAN_WARN_LIMIT: /* R/W 16 */
if (pmdev->page <= MAX31785_MAX_FAN_PAGE) {
s->fan_warn_limit[pmdev->page] = pmbus_receive16(pmdev);
}
break;
case MAX31785_MFR_FAN_RUN_TIME: /* R/W 16 */
if (pmdev->page <= MAX31785_MAX_FAN_PAGE) {
s->fan_run_time[pmdev->page] = pmbus_receive16(pmdev);
}
break;
case MAX31785_MFR_FAN_PWM_AVG: /* R/W 16 */
if (pmdev->page <= MAX31785_MAX_FAN_PAGE) {
s->fan_pwm_avg[pmdev->page] = pmbus_receive16(pmdev);
}
break;
case MAX31785_MFR_FAN_PWM2RPM: /* R/W 64 */
if (pmdev->page <= MAX31785_MAX_FAN_PAGE) {
s->fan_pwm2rpm[pmdev->page] = pmbus_receive64(pmdev);
}
break;
default:
qemu_log_mask(LOG_GUEST_ERROR,
"%s: writing to unsupported register: 0x%02x\n",
__func__, pmdev->code);
break;
}
return 0;
}
static void max31785_exit_reset(Object *obj, ResetType type)
{
PMBusDevice *pmdev = PMBUS_DEVICE(obj);
MAX31785State *s = MAX31785(obj);
pmdev->capability = MAX31785_DEFAULT_CAPABILITY;
for (int i = MAX31785_MIN_FAN_PAGE; i <= MAX31785_MAX_FAN_PAGE; i++) {
pmdev->pages[i].vout_mode = MAX31785_DEFAULT_VOUT_MODE;
pmdev->pages[i].fan_command_1 = MAX31785_DEFAULT_FAN_COMMAND_1;
pmdev->pages[i].revision = MAX31785_DEFAULT_PMBUS_REVISION;
pmdev->pages[i].fan_config_1_2 = MAX31785_DEFAULT_FAN_CONFIG_1_2(0);
pmdev->pages[i].read_fan_speed_1 = MAX31785_DEFAULT_FAN_SPEED;
pmdev->pages[i].status_fans_1_2 = MAX31785_DEFAULT_FAN_STATUS;
}
for (int i = MAX31785_MIN_TEMP_PAGE; i <= MAX31785_MAX_TEMP_PAGE; i++) {
pmdev->pages[i].vout_mode = MAX31785_DEFAULT_VOUT_MODE;
pmdev->pages[i].revision = MAX31785_DEFAULT_PMBUS_REVISION;
pmdev->pages[i].ot_fault_limit = MAX31785_DEFAULT_OT_FAULT_LIMIT;
pmdev->pages[i].ot_warn_limit = MAX31785_DEFAULT_OT_WARN_LIMIT;
}
for (int i = MAX31785_MIN_ADC_VOLTAGE_PAGE;
i <= MAX31785_MAX_ADC_VOLTAGE_PAGE;
i++) {
pmdev->pages[i].vout_mode = MAX31785_DEFAULT_VOUT_MODE;
pmdev->pages[i].revision = MAX31785_DEFAULT_PMBUS_REVISION;
pmdev->pages[i].vout_scale_monitor =
MAX31785_DEFAULT_VOUT_SCALE_MONITOR;
pmdev->pages[i].vout_ov_fault_limit = MAX31785_DEFAULT_OV_FAULT_LIMIT;
pmdev->pages[i].vout_ov_warn_limit = MAX31785_DEFAULT_OV_WARN_LIMIT;
}
s->mfr_location = MAX31785_DEFAULT_TEXT;
s->mfr_date = MAX31785_DEFAULT_TEXT;
s->mfr_serial = MAX31785_DEFAULT_TEXT;
}
static const VMStateDescription vmstate_max31785 = {
.name = TYPE_MAX31785,
.version_id = 0,
.minimum_version_id = 0,
.fields = (const VMStateField[]){
VMSTATE_PMBUS_DEVICE(parent, MAX31785State),
VMSTATE_UINT16_ARRAY(mfr_mode, MAX31785State,
MAX31785_TOTAL_NUM_PAGES),
VMSTATE_UINT16_ARRAY(vout_peak, MAX31785State,
MAX31785_TOTAL_NUM_PAGES),
VMSTATE_UINT16_ARRAY(temperature_peak, MAX31785State,
MAX31785_TOTAL_NUM_PAGES),
VMSTATE_UINT16_ARRAY(vout_min, MAX31785State,
MAX31785_TOTAL_NUM_PAGES),
VMSTATE_UINT8_ARRAY(fault_response, MAX31785State,
MAX31785_TOTAL_NUM_PAGES),
VMSTATE_UINT32_ARRAY(time_count, MAX31785State,
MAX31785_TOTAL_NUM_PAGES),
VMSTATE_UINT16_ARRAY(temp_sensor_config, MAX31785State,
MAX31785_TOTAL_NUM_PAGES),
VMSTATE_UINT16_ARRAY(fan_config, MAX31785State,
MAX31785_TOTAL_NUM_PAGES),
VMSTATE_UINT16_ARRAY(read_fan_pwm, MAX31785State,
MAX31785_TOTAL_NUM_PAGES),
VMSTATE_UINT16_ARRAY(fan_fault_limit, MAX31785State,
MAX31785_TOTAL_NUM_PAGES),
VMSTATE_UINT16_ARRAY(fan_warn_limit, MAX31785State,
MAX31785_TOTAL_NUM_PAGES),
VMSTATE_UINT16_ARRAY(fan_run_time, MAX31785State,
MAX31785_TOTAL_NUM_PAGES),
VMSTATE_UINT16_ARRAY(fan_pwm_avg, MAX31785State,
MAX31785_TOTAL_NUM_PAGES),
VMSTATE_UINT64_ARRAY(fan_pwm2rpm, MAX31785State,
MAX31785_TOTAL_NUM_PAGES),
VMSTATE_UINT64(mfr_location, MAX31785State),
VMSTATE_UINT64(mfr_date, MAX31785State),
VMSTATE_UINT64(mfr_serial, MAX31785State),
VMSTATE_END_OF_LIST()
}
};
static void max31785_init(Object *obj)
{
PMBusDevice *pmdev = PMBUS_DEVICE(obj);
for (int i = MAX31785_MIN_FAN_PAGE; i <= MAX31785_MAX_FAN_PAGE; i++) {
pmbus_page_config(pmdev, i, PB_HAS_VOUT_MODE);
}
for (int i = MAX31785_MIN_TEMP_PAGE; i <= MAX31785_MAX_TEMP_PAGE; i++) {
pmbus_page_config(pmdev, i, PB_HAS_VOUT_MODE | PB_HAS_TEMPERATURE);
}
for (int i = MAX31785_MIN_ADC_VOLTAGE_PAGE;
i <= MAX31785_MAX_ADC_VOLTAGE_PAGE;
i++) {
pmbus_page_config(pmdev, i, PB_HAS_VOUT_MODE | PB_HAS_VOUT |
PB_HAS_VOUT_RATING);
}
}
static void max31785_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 MAX31785 6-Channel Fan Controller";
dc->vmsd = &vmstate_max31785;
k->write_data = max31785_write_data;
k->receive_byte = max31785_read_byte;
k->device_num_pages = MAX31785_TOTAL_NUM_PAGES;
rc->phases.exit = max31785_exit_reset;
}
static const TypeInfo max31785_info = {
.name = TYPE_MAX31785,
.parent = TYPE_PMBUS_DEVICE,
.instance_size = sizeof(MAX31785State),
.instance_init = max31785_init,
.class_init = max31785_class_init,
};
static void max31785_register_types(void)
{
type_register_static(&max31785_info);
}
type_init(max31785_register_types)
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