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hw/misc: add ADM1272 device
The ADM1272 is a PMBus compliant Hot Swap Controller and Digital Power Monitor by Analog Devices. This commit adds support for interfacing with it, and support for setting and monitoring sensor limits. Datasheet: https://www.analog.com/media/en/technical-documentation/data-sheets/ADM1272.pdf Reviewed-by: Joel Stanley <joel@jms.id.au> Reviewed-by: Hao Wu <wuhaotsh@google.com> Signed-off-by: Titus Rwantare <titusr@google.com> Message-Id: <20210708172556.1868139-3-titusr@google.com> [Moved the device to the sensor directory] [remove include of trace.h, it is not needed] Signed-off-by: Corey Minyard <cminyard@mvista.com>
This commit is contained in:
parent
3746d5c15e
commit
c93488f16b
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@ -372,6 +372,7 @@ config XLNX_VERSAL
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config NPCM7XX
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bool
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select A9MPCORE
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select ADM1272
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select ARM_GIC
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select AT24C # EEPROM
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select PL310 # cache controller
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@ -9,3 +9,7 @@ config TMP421
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config EMC141X
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bool
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depends on I2C
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config ADM1272
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bool
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depends on I2C
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543
hw/sensor/adm1272.c
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543
hw/sensor/adm1272.c
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@ -0,0 +1,543 @@
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/*
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* Analog Devices ADM1272 High Voltage Positive Hot Swap Controller and Digital
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* Power Monitor with PMBus
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*
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* Copyright 2021 Google LLC
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#include "qemu/osdep.h"
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#include <string.h>
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#include "hw/i2c/pmbus_device.h"
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#include "hw/irq.h"
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#include "migration/vmstate.h"
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#include "qapi/error.h"
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#include "qapi/visitor.h"
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#include "qemu/log.h"
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#include "qemu/module.h"
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#define TYPE_ADM1272 "adm1272"
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#define ADM1272(obj) OBJECT_CHECK(ADM1272State, (obj), TYPE_ADM1272)
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#define ADM1272_RESTART_TIME 0xCC
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#define ADM1272_MFR_PEAK_IOUT 0xD0
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#define ADM1272_MFR_PEAK_VIN 0xD1
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#define ADM1272_MFR_PEAK_VOUT 0xD2
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#define ADM1272_MFR_PMON_CONTROL 0xD3
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#define ADM1272_MFR_PMON_CONFIG 0xD4
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#define ADM1272_MFR_ALERT1_CONFIG 0xD5
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#define ADM1272_MFR_ALERT2_CONFIG 0xD6
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#define ADM1272_MFR_PEAK_TEMPERATURE 0xD7
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#define ADM1272_MFR_DEVICE_CONFIG 0xD8
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#define ADM1272_MFR_POWER_CYCLE 0xD9
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#define ADM1272_MFR_PEAK_PIN 0xDA
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#define ADM1272_MFR_READ_PIN_EXT 0xDB
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#define ADM1272_MFR_READ_EIN_EXT 0xDC
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#define ADM1272_HYSTERESIS_LOW 0xF2
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#define ADM1272_HYSTERESIS_HIGH 0xF3
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#define ADM1272_STATUS_HYSTERESIS 0xF4
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#define ADM1272_STATUS_GPIO 0xF5
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#define ADM1272_STRT_UP_IOUT_LIM 0xF6
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/* Defaults */
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#define ADM1272_OPERATION_DEFAULT 0x80
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#define ADM1272_CAPABILITY_DEFAULT 0xB0
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#define ADM1272_CAPABILITY_NO_PEC 0x30
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#define ADM1272_DIRECT_MODE 0x40
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#define ADM1272_HIGH_LIMIT_DEFAULT 0x0FFF
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#define ADM1272_PIN_OP_DEFAULT 0x7FFF
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#define ADM1272_PMBUS_REVISION_DEFAULT 0x22
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#define ADM1272_MFR_ID_DEFAULT "ADI"
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#define ADM1272_MODEL_DEFAULT "ADM1272-A1"
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#define ADM1272_MFR_DEFAULT_REVISION "25"
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#define ADM1272_DEFAULT_DATE "160301"
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#define ADM1272_RESTART_TIME_DEFAULT 0x64
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#define ADM1272_PMON_CONTROL_DEFAULT 0x1
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#define ADM1272_PMON_CONFIG_DEFAULT 0x3F35
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#define ADM1272_DEVICE_CONFIG_DEFAULT 0x8
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#define ADM1272_HYSTERESIS_HIGH_DEFAULT 0xFFFF
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#define ADM1272_STRT_UP_IOUT_LIM_DEFAULT 0x000F
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#define ADM1272_VOLT_DEFAULT 12000
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#define ADM1272_IOUT_DEFAULT 25000
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#define ADM1272_PWR_DEFAULT 300 /* 12V 25A */
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#define ADM1272_SHUNT 300 /* micro-ohms */
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#define ADM1272_VOLTAGE_COEFF_DEFAULT 1
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#define ADM1272_CURRENT_COEFF_DEFAULT 3
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#define ADM1272_PWR_COEFF_DEFAULT 7
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#define ADM1272_IOUT_OFFSET 0x5000
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#define ADM1272_IOUT_OFFSET 0x5000
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typedef struct ADM1272State {
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PMBusDevice parent;
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uint64_t ein_ext;
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uint32_t pin_ext;
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uint8_t restart_time;
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uint16_t peak_vin;
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uint16_t peak_vout;
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uint16_t peak_iout;
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uint16_t peak_temperature;
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uint16_t peak_pin;
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uint8_t pmon_control;
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uint16_t pmon_config;
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uint16_t alert1_config;
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uint16_t alert2_config;
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uint16_t device_config;
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uint16_t hysteresis_low;
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uint16_t hysteresis_high;
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uint8_t status_hysteresis;
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uint8_t status_gpio;
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uint16_t strt_up_iout_lim;
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} ADM1272State;
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static const PMBusCoefficients adm1272_coefficients[] = {
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[0] = { 6770, 0, -2 }, /* voltage, vrange 60V */
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[1] = { 4062, 0, -2 }, /* voltage, vrange 100V */
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[2] = { 1326, 20480, -1 }, /* current, vsense range 15mV */
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[3] = { 663, 20480, -1 }, /* current, vsense range 30mV */
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[4] = { 3512, 0, -2 }, /* power, vrange 60V, irange 15mV */
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[5] = { 21071, 0, -3 }, /* power, vrange 100V, irange 15mV */
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[6] = { 17561, 0, -3 }, /* power, vrange 60V, irange 30mV */
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[7] = { 10535, 0, -3 }, /* power, vrange 100V, irange 30mV */
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[8] = { 42, 31871, -1 }, /* temperature */
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};
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static void adm1272_check_limits(ADM1272State *s)
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{
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PMBusDevice *pmdev = PMBUS_DEVICE(s);
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pmbus_check_limits(pmdev);
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if (pmdev->pages[0].read_vout > s->peak_vout) {
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s->peak_vout = pmdev->pages[0].read_vout;
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}
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if (pmdev->pages[0].read_vin > s->peak_vin) {
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s->peak_vin = pmdev->pages[0].read_vin;
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}
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if (pmdev->pages[0].read_iout > s->peak_iout) {
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s->peak_iout = pmdev->pages[0].read_iout;
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}
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if (pmdev->pages[0].read_temperature_1 > s->peak_temperature) {
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s->peak_temperature = pmdev->pages[0].read_temperature_1;
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}
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if (pmdev->pages[0].read_pin > s->peak_pin) {
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s->peak_pin = pmdev->pages[0].read_pin;
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}
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}
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static uint16_t adm1272_millivolts_to_direct(uint32_t value)
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{
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PMBusCoefficients c = adm1272_coefficients[ADM1272_VOLTAGE_COEFF_DEFAULT];
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c.b = c.b * 1000;
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c.R = c.R - 3;
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return pmbus_data2direct_mode(c, value);
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}
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static uint32_t adm1272_direct_to_millivolts(uint16_t value)
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{
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PMBusCoefficients c = adm1272_coefficients[ADM1272_VOLTAGE_COEFF_DEFAULT];
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c.b = c.b * 1000;
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c.R = c.R - 3;
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return pmbus_direct_mode2data(c, value);
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}
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static uint16_t adm1272_milliamps_to_direct(uint32_t value)
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{
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PMBusCoefficients c = adm1272_coefficients[ADM1272_CURRENT_COEFF_DEFAULT];
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/* Y = (m * r_sense * x - b) * 10^R */
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c.m = c.m * ADM1272_SHUNT / 1000; /* micro-ohms */
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c.b = c.b * 1000;
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c.R = c.R - 3;
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return pmbus_data2direct_mode(c, value);
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}
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static uint32_t adm1272_direct_to_milliamps(uint16_t value)
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{
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PMBusCoefficients c = adm1272_coefficients[ADM1272_CURRENT_COEFF_DEFAULT];
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c.m = c.m * ADM1272_SHUNT / 1000;
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c.b = c.b * 1000;
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c.R = c.R - 3;
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return pmbus_direct_mode2data(c, value);
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}
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static uint16_t adm1272_watts_to_direct(uint32_t value)
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{
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PMBusCoefficients c = adm1272_coefficients[ADM1272_PWR_COEFF_DEFAULT];
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c.m = c.m * ADM1272_SHUNT / 1000;
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return pmbus_data2direct_mode(c, value);
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}
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static uint32_t adm1272_direct_to_watts(uint16_t value)
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{
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PMBusCoefficients c = adm1272_coefficients[ADM1272_PWR_COEFF_DEFAULT];
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c.m = c.m * ADM1272_SHUNT / 1000;
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return pmbus_direct_mode2data(c, value);
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}
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static void adm1272_exit_reset(Object *obj)
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{
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ADM1272State *s = ADM1272(obj);
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PMBusDevice *pmdev = PMBUS_DEVICE(obj);
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pmdev->page = 0;
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pmdev->pages[0].operation = ADM1272_OPERATION_DEFAULT;
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pmdev->capability = ADM1272_CAPABILITY_NO_PEC;
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pmdev->pages[0].revision = ADM1272_PMBUS_REVISION_DEFAULT;
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pmdev->pages[0].vout_mode = ADM1272_DIRECT_MODE;
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pmdev->pages[0].vout_ov_warn_limit = ADM1272_HIGH_LIMIT_DEFAULT;
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pmdev->pages[0].vout_uv_warn_limit = 0;
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pmdev->pages[0].iout_oc_warn_limit = ADM1272_HIGH_LIMIT_DEFAULT;
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pmdev->pages[0].ot_fault_limit = ADM1272_HIGH_LIMIT_DEFAULT;
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pmdev->pages[0].ot_warn_limit = ADM1272_HIGH_LIMIT_DEFAULT;
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pmdev->pages[0].vin_ov_warn_limit = ADM1272_HIGH_LIMIT_DEFAULT;
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pmdev->pages[0].vin_uv_warn_limit = 0;
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pmdev->pages[0].pin_op_warn_limit = ADM1272_PIN_OP_DEFAULT;
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pmdev->pages[0].status_word = 0;
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pmdev->pages[0].status_vout = 0;
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pmdev->pages[0].status_iout = 0;
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pmdev->pages[0].status_input = 0;
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pmdev->pages[0].status_temperature = 0;
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pmdev->pages[0].status_mfr_specific = 0;
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pmdev->pages[0].read_vin
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= adm1272_millivolts_to_direct(ADM1272_VOLT_DEFAULT);
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pmdev->pages[0].read_vout
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= adm1272_millivolts_to_direct(ADM1272_VOLT_DEFAULT);
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pmdev->pages[0].read_iout
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= adm1272_milliamps_to_direct(ADM1272_IOUT_DEFAULT);
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pmdev->pages[0].read_temperature_1 = 0;
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pmdev->pages[0].read_pin = adm1272_watts_to_direct(ADM1272_PWR_DEFAULT);
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pmdev->pages[0].revision = ADM1272_PMBUS_REVISION_DEFAULT;
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pmdev->pages[0].mfr_id = ADM1272_MFR_ID_DEFAULT;
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pmdev->pages[0].mfr_model = ADM1272_MODEL_DEFAULT;
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pmdev->pages[0].mfr_revision = ADM1272_MFR_DEFAULT_REVISION;
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pmdev->pages[0].mfr_date = ADM1272_DEFAULT_DATE;
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s->pin_ext = 0;
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s->ein_ext = 0;
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s->restart_time = ADM1272_RESTART_TIME_DEFAULT;
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s->peak_vin = 0;
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s->peak_vout = 0;
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s->peak_iout = 0;
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s->peak_temperature = 0;
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s->peak_pin = 0;
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s->pmon_control = ADM1272_PMON_CONTROL_DEFAULT;
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s->pmon_config = ADM1272_PMON_CONFIG_DEFAULT;
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s->alert1_config = 0;
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s->alert2_config = 0;
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s->device_config = ADM1272_DEVICE_CONFIG_DEFAULT;
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s->hysteresis_low = 0;
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s->hysteresis_high = ADM1272_HYSTERESIS_HIGH_DEFAULT;
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s->status_hysteresis = 0;
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s->status_gpio = 0;
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s->strt_up_iout_lim = ADM1272_STRT_UP_IOUT_LIM_DEFAULT;
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}
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static uint8_t adm1272_read_byte(PMBusDevice *pmdev)
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{
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ADM1272State *s = ADM1272(pmdev);
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switch (pmdev->code) {
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case ADM1272_RESTART_TIME:
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pmbus_send8(pmdev, s->restart_time);
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break;
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case ADM1272_MFR_PEAK_IOUT:
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pmbus_send16(pmdev, s->peak_iout);
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break;
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case ADM1272_MFR_PEAK_VIN:
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pmbus_send16(pmdev, s->peak_vin);
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break;
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case ADM1272_MFR_PEAK_VOUT:
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pmbus_send16(pmdev, s->peak_vout);
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break;
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case ADM1272_MFR_PMON_CONTROL:
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pmbus_send8(pmdev, s->pmon_control);
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break;
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case ADM1272_MFR_PMON_CONFIG:
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pmbus_send16(pmdev, s->pmon_config);
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break;
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case ADM1272_MFR_ALERT1_CONFIG:
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pmbus_send16(pmdev, s->alert1_config);
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break;
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case ADM1272_MFR_ALERT2_CONFIG:
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pmbus_send16(pmdev, s->alert2_config);
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break;
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case ADM1272_MFR_PEAK_TEMPERATURE:
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pmbus_send16(pmdev, s->peak_temperature);
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break;
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case ADM1272_MFR_DEVICE_CONFIG:
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pmbus_send16(pmdev, s->device_config);
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break;
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case ADM1272_MFR_PEAK_PIN:
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pmbus_send16(pmdev, s->peak_pin);
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break;
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case ADM1272_MFR_READ_PIN_EXT:
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pmbus_send32(pmdev, s->pin_ext);
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break;
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case ADM1272_MFR_READ_EIN_EXT:
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pmbus_send64(pmdev, s->ein_ext);
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break;
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case ADM1272_HYSTERESIS_LOW:
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pmbus_send16(pmdev, s->hysteresis_low);
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break;
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case ADM1272_HYSTERESIS_HIGH:
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pmbus_send16(pmdev, s->hysteresis_high);
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break;
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case ADM1272_STATUS_HYSTERESIS:
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pmbus_send16(pmdev, s->status_hysteresis);
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break;
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case ADM1272_STATUS_GPIO:
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pmbus_send16(pmdev, s->status_gpio);
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break;
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case ADM1272_STRT_UP_IOUT_LIM:
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pmbus_send16(pmdev, s->strt_up_iout_lim);
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break;
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default:
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qemu_log_mask(LOG_GUEST_ERROR,
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"%s: reading from unsupported register: 0x%02x\n",
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__func__, pmdev->code);
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return 0xFF;
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break;
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}
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return 0;
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}
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static int adm1272_write_data(PMBusDevice *pmdev, const uint8_t *buf,
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uint8_t len)
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{
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ADM1272State *s = ADM1272(pmdev);
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if (len == 0) {
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qemu_log_mask(LOG_GUEST_ERROR, "%s: writing empty data\n", __func__);
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return -1;
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}
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pmdev->code = buf[0]; /* PMBus command code */
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if (len == 1) {
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return 0;
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}
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/* Exclude command code from buffer */
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buf++;
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len--;
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switch (pmdev->code) {
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case ADM1272_RESTART_TIME:
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s->restart_time = pmbus_receive8(pmdev);
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break;
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case ADM1272_MFR_PMON_CONTROL:
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s->pmon_control = pmbus_receive8(pmdev);
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break;
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case ADM1272_MFR_PMON_CONFIG:
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s->pmon_config = pmbus_receive16(pmdev);
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break;
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case ADM1272_MFR_ALERT1_CONFIG:
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s->alert1_config = pmbus_receive16(pmdev);
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break;
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case ADM1272_MFR_ALERT2_CONFIG:
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s->alert2_config = pmbus_receive16(pmdev);
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break;
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case ADM1272_MFR_DEVICE_CONFIG:
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s->device_config = pmbus_receive16(pmdev);
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break;
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case ADM1272_MFR_POWER_CYCLE:
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adm1272_exit_reset((Object *)s);
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break;
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case ADM1272_HYSTERESIS_LOW:
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s->hysteresis_low = pmbus_receive16(pmdev);
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break;
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case ADM1272_HYSTERESIS_HIGH:
|
||||
s->hysteresis_high = pmbus_receive16(pmdev);
|
||||
break;
|
||||
|
||||
case ADM1272_STRT_UP_IOUT_LIM:
|
||||
s->strt_up_iout_lim = pmbus_receive16(pmdev);
|
||||
adm1272_check_limits(s);
|
||||
break;
|
||||
|
||||
default:
|
||||
qemu_log_mask(LOG_GUEST_ERROR,
|
||||
"%s: writing to unsupported register: 0x%02x\n",
|
||||
__func__, pmdev->code);
|
||||
break;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void adm1272_get(Object *obj, Visitor *v, const char *name, void *opaque,
|
||||
Error **errp)
|
||||
{
|
||||
uint16_t value;
|
||||
|
||||
if (strcmp(name, "vin") == 0 || strcmp(name, "vout") == 0) {
|
||||
value = adm1272_direct_to_millivolts(*(uint16_t *)opaque);
|
||||
} else if (strcmp(name, "iout") == 0) {
|
||||
value = adm1272_direct_to_milliamps(*(uint16_t *)opaque);
|
||||
} else if (strcmp(name, "pin") == 0) {
|
||||
value = adm1272_direct_to_watts(*(uint16_t *)opaque);
|
||||
} else {
|
||||
value = *(uint16_t *)opaque;
|
||||
}
|
||||
|
||||
visit_type_uint16(v, name, &value, errp);
|
||||
}
|
||||
|
||||
static void adm1272_set(Object *obj, Visitor *v, const char *name, void *opaque,
|
||||
Error **errp)
|
||||
{
|
||||
ADM1272State *s = ADM1272(obj);
|
||||
uint16_t *internal = opaque;
|
||||
uint16_t value;
|
||||
|
||||
if (!visit_type_uint16(v, name, &value, errp)) {
|
||||
return;
|
||||
}
|
||||
|
||||
if (strcmp(name, "vin") == 0 || strcmp(name, "vout") == 0) {
|
||||
*internal = adm1272_millivolts_to_direct(value);
|
||||
} else if (strcmp(name, "iout") == 0) {
|
||||
*internal = adm1272_milliamps_to_direct(value);
|
||||
} else if (strcmp(name, "pin") == 0) {
|
||||
*internal = adm1272_watts_to_direct(value);
|
||||
} else {
|
||||
*internal = value;
|
||||
}
|
||||
|
||||
adm1272_check_limits(s);
|
||||
}
|
||||
|
||||
static const VMStateDescription vmstate_adm1272 = {
|
||||
.name = "ADM1272",
|
||||
.version_id = 0,
|
||||
.minimum_version_id = 0,
|
||||
.fields = (VMStateField[]){
|
||||
VMSTATE_PMBUS_DEVICE(parent, ADM1272State),
|
||||
VMSTATE_UINT64(ein_ext, ADM1272State),
|
||||
VMSTATE_UINT32(pin_ext, ADM1272State),
|
||||
VMSTATE_UINT8(restart_time, ADM1272State),
|
||||
|
||||
VMSTATE_UINT16(peak_vin, ADM1272State),
|
||||
VMSTATE_UINT16(peak_vout, ADM1272State),
|
||||
VMSTATE_UINT16(peak_iout, ADM1272State),
|
||||
VMSTATE_UINT16(peak_temperature, ADM1272State),
|
||||
VMSTATE_UINT16(peak_pin, ADM1272State),
|
||||
|
||||
VMSTATE_UINT8(pmon_control, ADM1272State),
|
||||
VMSTATE_UINT16(pmon_config, ADM1272State),
|
||||
VMSTATE_UINT16(alert1_config, ADM1272State),
|
||||
VMSTATE_UINT16(alert2_config, ADM1272State),
|
||||
VMSTATE_UINT16(device_config, ADM1272State),
|
||||
|
||||
VMSTATE_UINT16(hysteresis_low, ADM1272State),
|
||||
VMSTATE_UINT16(hysteresis_high, ADM1272State),
|
||||
VMSTATE_UINT8(status_hysteresis, ADM1272State),
|
||||
VMSTATE_UINT8(status_gpio, ADM1272State),
|
||||
|
||||
VMSTATE_UINT16(strt_up_iout_lim, ADM1272State),
|
||||
VMSTATE_END_OF_LIST()
|
||||
}
|
||||
};
|
||||
|
||||
static void adm1272_init(Object *obj)
|
||||
{
|
||||
PMBusDevice *pmdev = PMBUS_DEVICE(obj);
|
||||
uint64_t flags = PB_HAS_VOUT_MODE | PB_HAS_VOUT | PB_HAS_VIN | PB_HAS_IOUT |
|
||||
PB_HAS_PIN | PB_HAS_TEMPERATURE | PB_HAS_MFR_INFO;
|
||||
|
||||
pmbus_page_config(pmdev, 0, flags);
|
||||
|
||||
object_property_add(obj, "vin", "uint16",
|
||||
adm1272_get,
|
||||
adm1272_set, NULL, &pmdev->pages[0].read_vin);
|
||||
|
||||
object_property_add(obj, "vout", "uint16",
|
||||
adm1272_get,
|
||||
adm1272_set, NULL, &pmdev->pages[0].read_vout);
|
||||
|
||||
object_property_add(obj, "iout", "uint16",
|
||||
adm1272_get,
|
||||
adm1272_set, NULL, &pmdev->pages[0].read_iout);
|
||||
|
||||
object_property_add(obj, "pin", "uint16",
|
||||
adm1272_get,
|
||||
adm1272_set, NULL, &pmdev->pages[0].read_pin);
|
||||
|
||||
}
|
||||
|
||||
static void adm1272_class_init(ObjectClass *klass, void *data)
|
||||
{
|
||||
ResettableClass *rc = RESETTABLE_CLASS(klass);
|
||||
DeviceClass *dc = DEVICE_CLASS(klass);
|
||||
PMBusDeviceClass *k = PMBUS_DEVICE_CLASS(klass);
|
||||
|
||||
dc->desc = "Analog Devices ADM1272 Hot Swap controller";
|
||||
dc->vmsd = &vmstate_adm1272;
|
||||
k->write_data = adm1272_write_data;
|
||||
k->receive_byte = adm1272_read_byte;
|
||||
k->device_num_pages = 1;
|
||||
|
||||
rc->phases.exit = adm1272_exit_reset;
|
||||
}
|
||||
|
||||
static const TypeInfo adm1272_info = {
|
||||
.name = TYPE_ADM1272,
|
||||
.parent = TYPE_PMBUS_DEVICE,
|
||||
.instance_size = sizeof(ADM1272State),
|
||||
.instance_init = adm1272_init,
|
||||
.class_init = adm1272_class_init,
|
||||
};
|
||||
|
||||
static void adm1272_register_types(void)
|
||||
{
|
||||
type_register_static(&adm1272_info);
|
||||
}
|
||||
|
||||
type_init(adm1272_register_types)
|
|
@ -1,3 +1,4 @@
|
|||
softmmu_ss.add(when: 'CONFIG_TMP105', if_true: files('tmp105.c'))
|
||||
softmmu_ss.add(when: 'CONFIG_TMP421', if_true: files('tmp421.c'))
|
||||
softmmu_ss.add(when: 'CONFIG_EMC141X', if_true: files('emc141x.c'))
|
||||
softmmu_ss.add(when: 'CONFIG_ADM1272', if_true: files('adm1272.c'))
|
||||
|
|
Loading…
Reference in a new issue