diff options
Diffstat (limited to 'hw/sensor/isl_pmbus_vr.c')
| -rw-r--r-- | hw/sensor/isl_pmbus_vr.c | 211 |
1 files changed, 211 insertions, 0 deletions
diff --git a/hw/sensor/isl_pmbus_vr.c b/hw/sensor/isl_pmbus_vr.c new file mode 100644 index 0000000000..f8cc75fc31 --- /dev/null +++ b/hw/sensor/isl_pmbus_vr.c @@ -0,0 +1,211 @@ +/* + * 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) |