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qemu/hw/sensor/adm1272.c
Peter Maydell ad80e36744 hw, target: Add ResetType argument to hold and exit phase methods 
We pass a ResetType argument to the Resettable class enter
phase method, but we don't pass it to hold and exit, even though
the callsites have it readily available. This means that if
a device cared about the ResetType it would need to record it
in the enter phase method to use later on. Pass the type to
all three of the phase methods to avoid having to do that.

Commit created with

  for dir in hw target include; do \
      spatch --macro-file scripts/cocci-macro-file.h \
             --sp-file scripts/coccinelle/reset-type.cocci \
             --keep-comments --smpl-spacing --in-place \
             --include-headers --dir $dir; done

and no manual edits.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@amd.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Luc Michel <luc.michel@amd.com>
Message-id: 20240412160809.1260625-5-peter.maydell@linaro.org
2024-04-25 10:21:06 +01:00

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/*
* Analog Devices ADM1272 High Voltage Positive Hot Swap Controller and Digital
* Power Monitor with PMBus
*
* Copyright 2021 Google LLC
*
* 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_ADM1272 "adm1272"
#define ADM1272(obj) OBJECT_CHECK(ADM1272State, (obj), TYPE_ADM1272)
#define ADM1272_RESTART_TIME 0xCC
#define ADM1272_MFR_PEAK_IOUT 0xD0
#define ADM1272_MFR_PEAK_VIN 0xD1
#define ADM1272_MFR_PEAK_VOUT 0xD2
#define ADM1272_MFR_PMON_CONTROL 0xD3
#define ADM1272_MFR_PMON_CONFIG 0xD4
#define ADM1272_MFR_ALERT1_CONFIG 0xD5
#define ADM1272_MFR_ALERT2_CONFIG 0xD6
#define ADM1272_MFR_PEAK_TEMPERATURE 0xD7
#define ADM1272_MFR_DEVICE_CONFIG 0xD8
#define ADM1272_MFR_POWER_CYCLE 0xD9
#define ADM1272_MFR_PEAK_PIN 0xDA
#define ADM1272_MFR_READ_PIN_EXT 0xDB
#define ADM1272_MFR_READ_EIN_EXT 0xDC
#define ADM1272_HYSTERESIS_LOW 0xF2
#define ADM1272_HYSTERESIS_HIGH 0xF3
#define ADM1272_STATUS_HYSTERESIS 0xF4
#define ADM1272_STATUS_GPIO 0xF5
#define ADM1272_STRT_UP_IOUT_LIM 0xF6
/* Defaults */
#define ADM1272_OPERATION_DEFAULT 0x80
#define ADM1272_CAPABILITY_DEFAULT 0xB0
#define ADM1272_CAPABILITY_NO_PEC 0x30
#define ADM1272_DIRECT_MODE 0x40
#define ADM1272_HIGH_LIMIT_DEFAULT 0x0FFF
#define ADM1272_PIN_OP_DEFAULT 0x7FFF
#define ADM1272_PMBUS_REVISION_DEFAULT 0x22
#define ADM1272_MFR_ID_DEFAULT "ADI"
#define ADM1272_MODEL_DEFAULT "ADM1272-A1"
#define ADM1272_MFR_DEFAULT_REVISION "25"
#define ADM1272_DEFAULT_DATE "160301"
#define ADM1272_RESTART_TIME_DEFAULT 0x64
#define ADM1272_PMON_CONTROL_DEFAULT 0x1
#define ADM1272_PMON_CONFIG_DEFAULT 0x3F35
#define ADM1272_DEVICE_CONFIG_DEFAULT 0x8
#define ADM1272_HYSTERESIS_HIGH_DEFAULT 0xFFFF
#define ADM1272_STRT_UP_IOUT_LIM_DEFAULT 0x000F
#define ADM1272_VOLT_DEFAULT 12000
#define ADM1272_IOUT_DEFAULT 25000
#define ADM1272_PWR_DEFAULT 300 /* 12V 25A */
#define ADM1272_SHUNT 300 /* micro-ohms */
#define ADM1272_VOLTAGE_COEFF_DEFAULT 1
#define ADM1272_CURRENT_COEFF_DEFAULT 3
#define ADM1272_PWR_COEFF_DEFAULT 7
#define ADM1272_IOUT_OFFSET 0x5000
#define ADM1272_IOUT_OFFSET 0x5000
typedef struct ADM1272State {
PMBusDevice parent;
uint64_t ein_ext;
uint32_t pin_ext;
uint8_t restart_time;
uint16_t peak_vin;
uint16_t peak_vout;
uint16_t peak_iout;
uint16_t peak_temperature;
uint16_t peak_pin;
uint8_t pmon_control;
uint16_t pmon_config;
uint16_t alert1_config;
uint16_t alert2_config;
uint16_t device_config;
uint16_t hysteresis_low;
uint16_t hysteresis_high;
uint8_t status_hysteresis;
uint8_t status_gpio;
uint16_t strt_up_iout_lim;
} ADM1272State;
static const PMBusCoefficients adm1272_coefficients[] = {
[0] = { 6770, 0, -2 }, /* voltage, vrange 60V */
[1] = { 4062, 0, -2 }, /* voltage, vrange 100V */
[2] = { 1326, 20480, -1 }, /* current, vsense range 15mV */
[3] = { 663, 20480, -1 }, /* current, vsense range 30mV */
[4] = { 3512, 0, -2 }, /* power, vrange 60V, irange 15mV */
[5] = { 21071, 0, -3 }, /* power, vrange 100V, irange 15mV */
[6] = { 17561, 0, -3 }, /* power, vrange 60V, irange 30mV */
[7] = { 10535, 0, -3 }, /* power, vrange 100V, irange 30mV */
[8] = { 42, 31871, -1 }, /* temperature */
};
static void adm1272_check_limits(ADM1272State *s)
{
PMBusDevice *pmdev = PMBUS_DEVICE(s);
pmbus_check_limits(pmdev);
if (pmdev->pages[0].read_vout > s->peak_vout) {
s->peak_vout = pmdev->pages[0].read_vout;
}
if (pmdev->pages[0].read_vin > s->peak_vin) {
s->peak_vin = pmdev->pages[0].read_vin;
}
if (pmdev->pages[0].read_iout > s->peak_iout) {
s->peak_iout = pmdev->pages[0].read_iout;
}
if (pmdev->pages[0].read_temperature_1 > s->peak_temperature) {
s->peak_temperature = pmdev->pages[0].read_temperature_1;
}
if (pmdev->pages[0].read_pin > s->peak_pin) {
s->peak_pin = pmdev->pages[0].read_pin;
}
}
static uint16_t adm1272_millivolts_to_direct(uint32_t value)
{
PMBusCoefficients c = adm1272_coefficients[ADM1272_VOLTAGE_COEFF_DEFAULT];
c.b = c.b * 1000;
c.R = c.R - 3;
return pmbus_data2direct_mode(c, value);
}
static uint32_t adm1272_direct_to_millivolts(uint16_t value)
{
PMBusCoefficients c = adm1272_coefficients[ADM1272_VOLTAGE_COEFF_DEFAULT];
c.b = c.b * 1000;
c.R = c.R - 3;
return pmbus_direct_mode2data(c, value);
}
static uint16_t adm1272_milliamps_to_direct(uint32_t value)
{
PMBusCoefficients c = adm1272_coefficients[ADM1272_CURRENT_COEFF_DEFAULT];
/* Y = (m * r_sense * x - b) * 10^R */
c.m = c.m * ADM1272_SHUNT / 1000; /* micro-ohms */
c.b = c.b * 1000;
c.R = c.R - 3;
return pmbus_data2direct_mode(c, value);
}
static uint32_t adm1272_direct_to_milliamps(uint16_t value)
{
PMBusCoefficients c = adm1272_coefficients[ADM1272_CURRENT_COEFF_DEFAULT];
c.m = c.m * ADM1272_SHUNT / 1000;
c.b = c.b * 1000;
c.R = c.R - 3;
return pmbus_direct_mode2data(c, value);
}
static uint16_t adm1272_watts_to_direct(uint32_t value)
{
PMBusCoefficients c = adm1272_coefficients[ADM1272_PWR_COEFF_DEFAULT];
c.m = c.m * ADM1272_SHUNT / 1000;
return pmbus_data2direct_mode(c, value);
}
static uint32_t adm1272_direct_to_watts(uint16_t value)
{
PMBusCoefficients c = adm1272_coefficients[ADM1272_PWR_COEFF_DEFAULT];
c.m = c.m * ADM1272_SHUNT / 1000;
return pmbus_direct_mode2data(c, value);
}
static void adm1272_exit_reset(Object *obj, ResetType type)
{
ADM1272State *s = ADM1272(obj);
PMBusDevice *pmdev = PMBUS_DEVICE(obj);
pmdev->page = 0;
pmdev->pages[0].operation = ADM1272_OPERATION_DEFAULT;
pmdev->capability = ADM1272_CAPABILITY_NO_PEC;
pmdev->pages[0].revision = ADM1272_PMBUS_REVISION_DEFAULT;
pmdev->pages[0].vout_mode = ADM1272_DIRECT_MODE;
pmdev->pages[0].vout_ov_warn_limit = ADM1272_HIGH_LIMIT_DEFAULT;
pmdev->pages[0].vout_uv_warn_limit = 0;
pmdev->pages[0].iout_oc_warn_limit = ADM1272_HIGH_LIMIT_DEFAULT;
pmdev->pages[0].ot_fault_limit = ADM1272_HIGH_LIMIT_DEFAULT;
pmdev->pages[0].ot_warn_limit = ADM1272_HIGH_LIMIT_DEFAULT;
pmdev->pages[0].vin_ov_warn_limit = ADM1272_HIGH_LIMIT_DEFAULT;
pmdev->pages[0].vin_uv_warn_limit = 0;
pmdev->pages[0].pin_op_warn_limit = ADM1272_PIN_OP_DEFAULT;
pmdev->pages[0].status_word = 0;
pmdev->pages[0].status_vout = 0;
pmdev->pages[0].status_iout = 0;
pmdev->pages[0].status_input = 0;
pmdev->pages[0].status_temperature = 0;
pmdev->pages[0].status_mfr_specific = 0;
pmdev->pages[0].read_vin
= adm1272_millivolts_to_direct(ADM1272_VOLT_DEFAULT);
pmdev->pages[0].read_vout
= adm1272_millivolts_to_direct(ADM1272_VOLT_DEFAULT);
pmdev->pages[0].read_iout
= adm1272_milliamps_to_direct(ADM1272_IOUT_DEFAULT);
pmdev->pages[0].read_temperature_1 = 0;
pmdev->pages[0].read_pin = adm1272_watts_to_direct(ADM1272_PWR_DEFAULT);
pmdev->pages[0].revision = ADM1272_PMBUS_REVISION_DEFAULT;
pmdev->pages[0].mfr_id = ADM1272_MFR_ID_DEFAULT;
pmdev->pages[0].mfr_model = ADM1272_MODEL_DEFAULT;
pmdev->pages[0].mfr_revision = ADM1272_MFR_DEFAULT_REVISION;
pmdev->pages[0].mfr_date = ADM1272_DEFAULT_DATE;
s->pin_ext = 0;
s->ein_ext = 0;
s->restart_time = ADM1272_RESTART_TIME_DEFAULT;
s->peak_vin = 0;
s->peak_vout = 0;
s->peak_iout = 0;
s->peak_temperature = 0;
s->peak_pin = 0;
s->pmon_control = ADM1272_PMON_CONTROL_DEFAULT;
s->pmon_config = ADM1272_PMON_CONFIG_DEFAULT;
s->alert1_config = 0;
s->alert2_config = 0;
s->device_config = ADM1272_DEVICE_CONFIG_DEFAULT;
s->hysteresis_low = 0;
s->hysteresis_high = ADM1272_HYSTERESIS_HIGH_DEFAULT;
s->status_hysteresis = 0;
s->status_gpio = 0;
s->strt_up_iout_lim = ADM1272_STRT_UP_IOUT_LIM_DEFAULT;
}
static uint8_t adm1272_read_byte(PMBusDevice *pmdev)
{
ADM1272State *s = ADM1272(pmdev);
switch (pmdev->code) {
case ADM1272_RESTART_TIME:
pmbus_send8(pmdev, s->restart_time);
break;
case ADM1272_MFR_PEAK_IOUT:
pmbus_send16(pmdev, s->peak_iout);
break;
case ADM1272_MFR_PEAK_VIN:
pmbus_send16(pmdev, s->peak_vin);
break;
case ADM1272_MFR_PEAK_VOUT:
pmbus_send16(pmdev, s->peak_vout);
break;
case ADM1272_MFR_PMON_CONTROL:
pmbus_send8(pmdev, s->pmon_control);
break;
case ADM1272_MFR_PMON_CONFIG:
pmbus_send16(pmdev, s->pmon_config);
break;
case ADM1272_MFR_ALERT1_CONFIG:
pmbus_send16(pmdev, s->alert1_config);
break;
case ADM1272_MFR_ALERT2_CONFIG:
pmbus_send16(pmdev, s->alert2_config);
break;
case ADM1272_MFR_PEAK_TEMPERATURE:
pmbus_send16(pmdev, s->peak_temperature);
break;
case ADM1272_MFR_DEVICE_CONFIG:
pmbus_send16(pmdev, s->device_config);
break;
case ADM1272_MFR_PEAK_PIN:
pmbus_send16(pmdev, s->peak_pin);
break;
case ADM1272_MFR_READ_PIN_EXT:
pmbus_send32(pmdev, s->pin_ext);
break;
case ADM1272_MFR_READ_EIN_EXT:
pmbus_send64(pmdev, s->ein_ext);
break;
case ADM1272_HYSTERESIS_LOW:
pmbus_send16(pmdev, s->hysteresis_low);
break;
case ADM1272_HYSTERESIS_HIGH:
pmbus_send16(pmdev, s->hysteresis_high);
break;
case ADM1272_STATUS_HYSTERESIS:
pmbus_send16(pmdev, s->status_hysteresis);
break;
case ADM1272_STATUS_GPIO:
pmbus_send16(pmdev, s->status_gpio);
break;
case ADM1272_STRT_UP_IOUT_LIM:
pmbus_send16(pmdev, s->strt_up_iout_lim);
break;
default:
qemu_log_mask(LOG_GUEST_ERROR,
"%s: reading from unsupported register: 0x%02x\n",
__func__, pmdev->code);
return 0xFF;
break;
}
return 0;
}
static int adm1272_write_data(PMBusDevice *pmdev, const uint8_t *buf,
uint8_t len)
{
ADM1272State *s = ADM1272(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 ADM1272_RESTART_TIME:
s->restart_time = pmbus_receive8(pmdev);
break;
case ADM1272_MFR_PMON_CONTROL:
s->pmon_control = pmbus_receive8(pmdev);
break;
case ADM1272_MFR_PMON_CONFIG:
s->pmon_config = pmbus_receive16(pmdev);
break;
case ADM1272_MFR_ALERT1_CONFIG:
s->alert1_config = pmbus_receive16(pmdev);
break;
case ADM1272_MFR_ALERT2_CONFIG:
s->alert2_config = pmbus_receive16(pmdev);
break;
case ADM1272_MFR_DEVICE_CONFIG:
s->device_config = pmbus_receive16(pmdev);
break;
case ADM1272_MFR_POWER_CYCLE:
device_cold_reset(DEVICE(s));
break;
case ADM1272_HYSTERESIS_LOW:
s->hysteresis_low = pmbus_receive16(pmdev);
break;
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 = (const 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)
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