diff options
Diffstat (limited to 'hw/sensor/max31785.c')
| -rw-r--r-- | hw/sensor/max31785.c | 573 |
1 files changed, 573 insertions, 0 deletions
diff --git a/hw/sensor/max31785.c b/hw/sensor/max31785.c new file mode 100644 index 0000000000..8b95e32481 --- /dev/null +++ b/hw/sensor/max31785.c @@ -0,0 +1,573 @@ +// 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) +{ + 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 = (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) |