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/*
* PMBus device for Renesas Digital Multiphase Voltage Regulators
*
* Copyright 2021 Google LLC
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "qemu/osdep.h"
#include "hw/sensor/isl_pmbus_vr.h"
#include "hw/qdev-properties.h"
#include "qapi/visitor.h"
#include "qemu/log.h"
#include "qemu/module.h"
static uint8_t isl_pmbus_vr_read_byte(PMBusDevice *pmdev)
{
qemu_log_mask(LOG_GUEST_ERROR,
"%s: reading from unsupported register: 0x%02x\n",
__func__, pmdev->code);
return PMBUS_ERR_BYTE;
}
static int isl_pmbus_vr_write_data(PMBusDevice *pmdev, const uint8_t *buf,
uint8_t len)
{
qemu_log_mask(LOG_GUEST_ERROR,
"%s: write to unsupported register: 0x%02x\n",
__func__, pmdev->code);
return PMBUS_ERR_BYTE;
}
/* TODO: Implement coefficients support in pmbus_device.c for qmp */
static void isl_pmbus_vr_get(Object *obj, Visitor *v, const char *name,
void *opaque, Error **errp)
{
visit_type_uint16(v, name, (uint16_t *)opaque, errp);
}
static void isl_pmbus_vr_set(Object *obj, Visitor *v, const char *name,
void *opaque, Error **errp)
{
PMBusDevice *pmdev = PMBUS_DEVICE(obj);
uint16_t *internal = opaque;
uint16_t value;
if (!visit_type_uint16(v, name, &value, errp)) {
return;
}
*internal = value;
pmbus_check_limits(pmdev);
}
static void isl_pmbus_vr_exit_reset(Object *obj)
{
PMBusDevice *pmdev = PMBUS_DEVICE(obj);
pmdev->page = 0;
pmdev->capability = ISL_CAPABILITY_DEFAULT;
for (int i = 0; i < pmdev->num_pages; i++) {
pmdev->pages[i].operation = ISL_OPERATION_DEFAULT;
pmdev->pages[i].on_off_config = ISL_ON_OFF_CONFIG_DEFAULT;
pmdev->pages[i].vout_mode = ISL_VOUT_MODE_DEFAULT;
pmdev->pages[i].vout_command = ISL_VOUT_COMMAND_DEFAULT;
pmdev->pages[i].vout_max = ISL_VOUT_MAX_DEFAULT;
pmdev->pages[i].vout_margin_high = ISL_VOUT_MARGIN_HIGH_DEFAULT;
pmdev->pages[i].vout_margin_low = ISL_VOUT_MARGIN_LOW_DEFAULT;
pmdev->pages[i].vout_transition_rate = ISL_VOUT_TRANSITION_RATE_DEFAULT;
pmdev->pages[i].vout_ov_fault_limit = ISL_VOUT_OV_FAULT_LIMIT_DEFAULT;
pmdev->pages[i].ot_fault_limit = ISL_OT_FAULT_LIMIT_DEFAULT;
pmdev->pages[i].ot_warn_limit = ISL_OT_WARN_LIMIT_DEFAULT;
pmdev->pages[i].vin_ov_warn_limit = ISL_VIN_OV_WARN_LIMIT_DEFAULT;
pmdev->pages[i].vin_uv_warn_limit = ISL_VIN_UV_WARN_LIMIT_DEFAULT;
pmdev->pages[i].iin_oc_fault_limit = ISL_IIN_OC_FAULT_LIMIT_DEFAULT;
pmdev->pages[i].ton_delay = ISL_TON_DELAY_DEFAULT;
pmdev->pages[i].ton_rise = ISL_TON_RISE_DEFAULT;
pmdev->pages[i].toff_fall = ISL_TOFF_FALL_DEFAULT;
pmdev->pages[i].revision = ISL_REVISION_DEFAULT;
pmdev->pages[i].read_vout = ISL_READ_VOUT_DEFAULT;
pmdev->pages[i].read_iout = ISL_READ_IOUT_DEFAULT;
pmdev->pages[i].read_pout = ISL_READ_POUT_DEFAULT;
pmdev->pages[i].read_vin = ISL_READ_VIN_DEFAULT;
pmdev->pages[i].read_iin = ISL_READ_IIN_DEFAULT;
pmdev->pages[i].read_pin = ISL_READ_PIN_DEFAULT;
pmdev->pages[i].read_temperature_1 = ISL_READ_TEMP_DEFAULT;
pmdev->pages[i].read_temperature_2 = ISL_READ_TEMP_DEFAULT;
pmdev->pages[i].read_temperature_3 = ISL_READ_TEMP_DEFAULT;
}
}
static void isl_pmbus_vr_add_props(Object *obj, uint64_t *flags, uint8_t pages)
{
PMBusDevice *pmdev = PMBUS_DEVICE(obj);
for (int i = 0; i < pages; i++) {
if (flags[i] & PB_HAS_VIN) {
object_property_add(obj, "vin[*]", "uint16",
isl_pmbus_vr_get,
isl_pmbus_vr_set,
NULL, &pmdev->pages[i].read_vin);
}
if (flags[i] & PB_HAS_VOUT) {
object_property_add(obj, "vout[*]", "uint16",
isl_pmbus_vr_get,
isl_pmbus_vr_set,
NULL, &pmdev->pages[i].read_vout);
}
if (flags[i] & PB_HAS_IIN) {
object_property_add(obj, "iin[*]", "uint16",
isl_pmbus_vr_get,
isl_pmbus_vr_set,
NULL, &pmdev->pages[i].read_iin);
}
if (flags[i] & PB_HAS_IOUT) {
object_property_add(obj, "iout[*]", "uint16",
isl_pmbus_vr_get,
isl_pmbus_vr_set,
NULL, &pmdev->pages[i].read_iout);
}
if (flags[i] & PB_HAS_PIN) {
object_property_add(obj, "pin[*]", "uint16",
isl_pmbus_vr_get,
isl_pmbus_vr_set,
NULL, &pmdev->pages[i].read_pin);
}
if (flags[i] & PB_HAS_POUT) {
object_property_add(obj, "pout[*]", "uint16",
isl_pmbus_vr_get,
isl_pmbus_vr_set,
NULL, &pmdev->pages[i].read_pout);
}
if (flags[i] & PB_HAS_TEMPERATURE) {
object_property_add(obj, "temp1[*]", "uint16",
isl_pmbus_vr_get,
isl_pmbus_vr_set,
NULL, &pmdev->pages[i].read_temperature_1);
}
if (flags[i] & PB_HAS_TEMP2) {
object_property_add(obj, "temp2[*]", "uint16",
isl_pmbus_vr_get,
isl_pmbus_vr_set,
NULL, &pmdev->pages[i].read_temperature_2);
}
if (flags[i] & PB_HAS_TEMP3) {
object_property_add(obj, "temp3[*]", "uint16",
isl_pmbus_vr_get,
isl_pmbus_vr_set,
NULL, &pmdev->pages[i].read_temperature_3);
}
}
}
static void raa22xx_init(Object *obj)
{
PMBusDevice *pmdev = PMBUS_DEVICE(obj);
uint64_t flags[2];
flags[0] = PB_HAS_VIN | PB_HAS_VOUT | PB_HAS_VOUT_MODE |
PB_HAS_VOUT_RATING | PB_HAS_VOUT_MARGIN | PB_HAS_IIN |
PB_HAS_IOUT | PB_HAS_PIN | PB_HAS_POUT | PB_HAS_TEMPERATURE |
PB_HAS_TEMP2 | PB_HAS_TEMP3 | PB_HAS_STATUS_MFR_SPECIFIC;
flags[1] = PB_HAS_IIN | PB_HAS_PIN | PB_HAS_TEMPERATURE | PB_HAS_TEMP3 |
PB_HAS_VOUT | PB_HAS_VOUT_MODE | PB_HAS_VOUT_MARGIN |
PB_HAS_VOUT_RATING | PB_HAS_IOUT | PB_HAS_POUT |
PB_HAS_STATUS_MFR_SPECIFIC;
pmbus_page_config(pmdev, 0, flags[0]);
pmbus_page_config(pmdev, 1, flags[1]);
isl_pmbus_vr_add_props(obj, flags, ARRAY_SIZE(flags));
}
static void isl_pmbus_vr_class_init(ObjectClass *klass, void *data,
uint8_t pages)
{
PMBusDeviceClass *k = PMBUS_DEVICE_CLASS(klass);
k->write_data = isl_pmbus_vr_write_data;
k->receive_byte = isl_pmbus_vr_read_byte;
k->device_num_pages = pages;
}
static void isl69260_class_init(ObjectClass *klass, void *data)
{
ResettableClass *rc = RESETTABLE_CLASS(klass);
DeviceClass *dc = DEVICE_CLASS(klass);
dc->desc = "Renesas ISL69260 Digital Multiphase Voltage Regulator";
rc->phases.exit = isl_pmbus_vr_exit_reset;
isl_pmbus_vr_class_init(klass, data, 2);
}
static const TypeInfo isl69260_info = {
.name = TYPE_ISL69260,
.parent = TYPE_PMBUS_DEVICE,
.instance_size = sizeof(ISLState),
.instance_init = raa22xx_init,
.class_init = isl69260_class_init,
};
static void isl_pmbus_vr_register_types(void)
{
type_register_static(&isl69260_info);
}
type_init(isl_pmbus_vr_register_types)
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