On Wed, 22 Jun 2022 at 17:29, Jae Hyun Yoo <quic_jaeh...@quicinc.com> wrote: > > From: Maheswara Kurapati <quic_mkura...@quicinc.com> > > MAX31785 is a PMBus compliant 6-Channel fan controller. It supports 6 fan > channels, 11 temperature sensors, and 6-Channel ADC to measure the remote > voltages. Datasheet can be found here: > https://datasheets.maximintegrated.com/en/ds/MAX31785.pdf > > This initial version of the driver has skeleton and support for the > fan channels. Requests for temperature sensors, and ADC Channels the > are serviced with the default values as per the datasheet. No additional > instrumentation is done. NV Log feature is not supported. > > Signed-off-by: Maheswara Kurapati <quic_mkura...@quicinc.com>
An excellent contribution. Thanks Maheswara and Jae. Reviewed-by: Joel Stanley <j...@jms.id.au> > --- > hw/arm/Kconfig | 1 + > hw/arm/aspeed.c | 6 +- > hw/sensor/Kconfig | 4 + > hw/sensor/max31785.c | 580 ++++++++++++++++++++++++++++++++++++++++++ > hw/sensor/meson.build | 1 + > 5 files changed, 590 insertions(+), 2 deletions(-) > create mode 100644 hw/sensor/max31785.c > > diff --git a/hw/arm/Kconfig b/hw/arm/Kconfig > index 219262a8da36..77ef0fa967b2 100644 > --- a/hw/arm/Kconfig > +++ b/hw/arm/Kconfig > @@ -408,6 +408,7 @@ config NPCM7XX > select SSI > select UNIMP > select PCA954X > + select MAX31785 > > config FSL_IMX25 > bool > diff --git a/hw/arm/aspeed.c b/hw/arm/aspeed.c > index 0e6edd2be4fa..85630b497793 100644 > --- a/hw/arm/aspeed.c > +++ b/hw/arm/aspeed.c > @@ -619,7 +619,6 @@ static void witherspoon_bmc_i2c_init(AspeedMachineState > *bmc) > LEDState *led; > > /* Bus 3: TODO bmp280@77 */ > - /* Bus 3: TODO max31785@52 */ > dev = DEVICE(i2c_slave_new(TYPE_PCA9552, 0x60)); > qdev_prop_set_string(dev, "description", "pca1"); > i2c_slave_realize_and_unref(I2C_SLAVE(dev), > @@ -635,6 +634,8 @@ static void witherspoon_bmc_i2c_init(AspeedMachineState > *bmc) > qdev_get_gpio_in(DEVICE(led), 0)); > } > i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 3), "dps310", > 0x76); > + i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 3), "max31785", > + 0x52); > i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 4), "tmp423", > 0x4c); > i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 5), "tmp423", > 0x4c); > > @@ -779,13 +780,14 @@ static void rainier_bmc_i2c_init(AspeedMachineState > *bmc) > create_pca9552(soc, 7, 0x31); > create_pca9552(soc, 7, 0x32); > create_pca9552(soc, 7, 0x33); > - /* Bus 7: TODO max31785@52 */ > create_pca9552(soc, 7, 0x60); > create_pca9552(soc, 7, 0x61); > i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 7), "dps310", > 0x76); > /* Bus 7: TODO si7021-a20@20 */ > i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 7), TYPE_TMP105, > 0x48); > + i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 7), "max31785", > + 0x52); > aspeed_eeprom_init(aspeed_i2c_get_bus(&soc->i2c, 7), 0x50, 64 * KiB); > aspeed_eeprom_init(aspeed_i2c_get_bus(&soc->i2c, 7), 0x51, 64 * KiB); > > diff --git a/hw/sensor/Kconfig b/hw/sensor/Kconfig > index df392e786904..e03bd09b50e8 100644 > --- a/hw/sensor/Kconfig > +++ b/hw/sensor/Kconfig > @@ -34,3 +34,7 @@ config LSM303DLHC_MAG > config ISL_PMBUS_VR > bool > depends on PMBUS > + > +config MAX31785 > + bool > + depends on PMBUS > diff --git a/hw/sensor/max31785.c b/hw/sensor/max31785.c > new file mode 100644 > index 000000000000..11bf9977b6fd > --- /dev/null > +++ b/hw/sensor/max31785.c > @@ -0,0 +1,580 @@ > +/* > + * Maxim MAX31785 PMBus 6-Channel Fan Controller > + * > + * Datasheet: > + * https://datasheets.maximintegrated.com/en/ds/MAX31785.pdf > + * > + * Copyright(c) 2022 Qualcomm Innovative Center, Inc. All rights reserved. > + * > + * 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_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) > diff --git a/hw/sensor/meson.build b/hw/sensor/meson.build > index 12b6992bc845..9e9be602c349 100644 > --- a/hw/sensor/meson.build > +++ b/hw/sensor/meson.build > @@ -6,3 +6,4 @@ softmmu_ss.add(when: 'CONFIG_ADM1272', if_true: > files('adm1272.c')) > softmmu_ss.add(when: 'CONFIG_MAX34451', if_true: files('max34451.c')) > softmmu_ss.add(when: 'CONFIG_LSM303DLHC_MAG', if_true: > files('lsm303dlhc_mag.c')) > softmmu_ss.add(when: 'CONFIG_ISL_PMBUS_VR', if_true: files('isl_pmbus_vr.c')) > +softmmu_ss.add(when: 'CONFIG_MAX31785', if_true: files('max31785.c')) > -- > 2.25.1 >
