| // 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) |
