tests/qtest/isl_pmbus_vr-test.c - third_party/qemu - Git at Google

 /*
  * QTests for the ISL_PMBUS digital voltage regulators
  *
  * Copyright 2021 Google LLC
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the
  * Free Software Foundation; either version 2 of the License, or
  * (at your option) any later version.
  *
  * This program is distributed in the hope that it will be useful, but WITHOUT
  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
  * for more details.
  */

 #include "qemu/osdep.h"
 #include <math.h>
 #include "hw/i2c/pmbus_device.h"
 #include "hw/sensor/isl_pmbus_vr.h"
 #include "libqtest-single.h"
 #include "libqos/qgraph.h"
 #include "libqos/i2c.h"
 #include "qapi/qmp/qdict.h"
 #include "qapi/qmp/qnum.h"
 #include "qemu/bitops.h"

 #define TEST_ID "isl_pmbus_vr-test"
 #define TEST_ADDR (0x43)

 static uint16_t qmp_isl_pmbus_vr_get(const char *id, const char *property)
 {
     QDict *response;
     uint64_t ret;

     response = qmp("{ 'execute': 'qom-get', 'arguments': { 'path': %s, "
                    "'property': %s } }", id, property);
     g_assert(qdict_haskey(response, "return"));
     ret = qnum_get_uint(qobject_to(QNum, qdict_get(response, "return")));
     qobject_unref(response);
     return ret;
 }

 static void qmp_isl_pmbus_vr_set(const char *id,
                             const char *property,
                             uint16_t value)
 {
     QDict *response;

     response = qmp("{ 'execute': 'qom-set', 'arguments': { 'path': %s, "
                    "'property': %s, 'value': %u } }", id, property, value);
     g_assert(qdict_haskey(response, "return"));
     qobject_unref(response);
 }

 /* PMBus commands are little endian vs i2c_set16 in i2c.h which is big endian */
 static uint16_t isl_pmbus_vr_i2c_get16(QI2CDevice *i2cdev, uint8_t reg)
 {
     uint8_t resp[2];
     i2c_read_block(i2cdev, reg, resp, sizeof(resp));
     return (resp[1] << 8) | resp[0];
 }

 /* PMBus commands are little endian vs i2c_set16 in i2c.h which is big endian */
 static void isl_pmbus_vr_i2c_set16(QI2CDevice *i2cdev, uint8_t reg,
                                    uint16_t value)
 {
     uint8_t data[2];

     data[0] = value & 255;
     data[1] = value >> 8;
     i2c_write_block(i2cdev, reg, data, sizeof(data));
 }

 static void test_defaults(void *obj, void *data, QGuestAllocator *alloc)
 {
     uint16_t value, i2c_value;
     QI2CDevice *i2cdev = (QI2CDevice *)obj;

     value = qmp_isl_pmbus_vr_get(TEST_ID, "vout[0]");
     g_assert_cmpuint(value, ==, ISL_READ_VOUT_DEFAULT);

     i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_READ_IOUT);
     g_assert_cmpuint(i2c_value, ==, ISL_READ_IOUT_DEFAULT);

     value = qmp_isl_pmbus_vr_get(TEST_ID, "pout[0]");
     g_assert_cmpuint(value, ==, ISL_READ_POUT_DEFAULT);

     i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_READ_VIN);
     g_assert_cmpuint(i2c_value, ==, ISL_READ_VIN_DEFAULT);

     value = qmp_isl_pmbus_vr_get(TEST_ID, "iin[0]");
     g_assert_cmpuint(value, ==, ISL_READ_IIN_DEFAULT);

     i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_READ_PIN);
     g_assert_cmpuint(i2c_value, ==, ISL_READ_PIN_DEFAULT);

     value = qmp_isl_pmbus_vr_get(TEST_ID, "temp1[0]");
     g_assert_cmpuint(value, ==, ISL_READ_TEMP_DEFAULT);

     i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_READ_TEMPERATURE_2);
     g_assert_cmpuint(i2c_value, ==, ISL_READ_TEMP_DEFAULT);

     i2c_value = i2c_get8(i2cdev, PMBUS_CAPABILITY);
     g_assert_cmphex(i2c_value, ==, ISL_CAPABILITY_DEFAULT);

     i2c_value = i2c_get8(i2cdev, PMBUS_OPERATION);
     g_assert_cmphex(i2c_value, ==, ISL_OPERATION_DEFAULT);

     i2c_value = i2c_get8(i2cdev, PMBUS_ON_OFF_CONFIG);
     g_assert_cmphex(i2c_value, ==, ISL_ON_OFF_CONFIG_DEFAULT);

     i2c_value = i2c_get8(i2cdev, PMBUS_VOUT_MODE);
     g_assert_cmphex(i2c_value, ==, ISL_VOUT_MODE_DEFAULT);

     i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_VOUT_COMMAND);
     g_assert_cmphex(i2c_value, ==, ISL_VOUT_COMMAND_DEFAULT);

     i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_VOUT_MAX);
     g_assert_cmphex(i2c_value, ==, ISL_VOUT_MAX_DEFAULT);

     i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_VOUT_MARGIN_HIGH);
     g_assert_cmphex(i2c_value, ==, ISL_VOUT_MARGIN_HIGH_DEFAULT);

     i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_VOUT_MARGIN_LOW);
     g_assert_cmphex(i2c_value, ==, ISL_VOUT_MARGIN_LOW_DEFAULT);

     i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_VOUT_TRANSITION_RATE);
     g_assert_cmphex(i2c_value, ==, ISL_VOUT_TRANSITION_RATE_DEFAULT);

     i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_VOUT_OV_FAULT_LIMIT);
     g_assert_cmphex(i2c_value, ==, ISL_VOUT_OV_FAULT_LIMIT_DEFAULT);

     i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_OT_FAULT_LIMIT);
     g_assert_cmphex(i2c_value, ==, ISL_OT_FAULT_LIMIT_DEFAULT);

     i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_OT_WARN_LIMIT);
     g_assert_cmphex(i2c_value, ==, ISL_OT_WARN_LIMIT_DEFAULT);

     i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_VIN_OV_WARN_LIMIT);
     g_assert_cmphex(i2c_value, ==, ISL_VIN_OV_WARN_LIMIT_DEFAULT);

     i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_VIN_UV_WARN_LIMIT);
     g_assert_cmphex(i2c_value, ==, ISL_VIN_UV_WARN_LIMIT_DEFAULT);

     i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_IIN_OC_FAULT_LIMIT);
     g_assert_cmphex(i2c_value, ==, ISL_IIN_OC_FAULT_LIMIT_DEFAULT);

     i2c_value = i2c_get8(i2cdev, PMBUS_REVISION);
     g_assert_cmphex(i2c_value, ==, ISL_REVISION_DEFAULT);
 }

 static void raa228000_test_defaults(void *obj, void *data,
                                     QGuestAllocator *alloc)
 {
     uint16_t value, i2c_value;
     QI2CDevice *i2cdev = (QI2CDevice *)obj;

     value = qmp_isl_pmbus_vr_get(TEST_ID, "vout[0]");
     g_assert_cmpuint(value, ==, 0);

     i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_READ_IOUT);
     g_assert_cmpuint(i2c_value, ==, 0);

     value = qmp_isl_pmbus_vr_get(TEST_ID, "pout[0]");
     g_assert_cmpuint(value, ==, 0);

     i2c_value = i2c_get8(i2cdev, PMBUS_CAPABILITY);
     g_assert_cmphex(i2c_value, ==, ISL_CAPABILITY_DEFAULT);

     i2c_value = i2c_get8(i2cdev, PMBUS_OPERATION);
     g_assert_cmphex(i2c_value, ==, ISL_OPERATION_DEFAULT);

     i2c_value = i2c_get8(i2cdev, PMBUS_ON_OFF_CONFIG);
     g_assert_cmphex(i2c_value, ==, ISL_ON_OFF_CONFIG_DEFAULT);

     i2c_value = i2c_get8(i2cdev, PMBUS_VOUT_MODE);
     g_assert_cmphex(i2c_value, ==, ISL_VOUT_MODE_DEFAULT);

     i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_VOUT_COMMAND);
     g_assert_cmphex(i2c_value, ==, ISL_VOUT_COMMAND_DEFAULT);

     i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_VOUT_MAX);
     g_assert_cmphex(i2c_value, ==, ISL_VOUT_MAX_DEFAULT);

     i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_VOUT_MARGIN_HIGH);
     g_assert_cmphex(i2c_value, ==, ISL_VOUT_MARGIN_HIGH_DEFAULT);

     i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_VOUT_MARGIN_LOW);
     g_assert_cmphex(i2c_value, ==, ISL_VOUT_MARGIN_LOW_DEFAULT);

     i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_VOUT_TRANSITION_RATE);
     g_assert_cmphex(i2c_value, ==, ISL_VOUT_TRANSITION_RATE_DEFAULT);

     i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_VOUT_OV_FAULT_LIMIT);
     g_assert_cmphex(i2c_value, ==, ISL_VOUT_OV_FAULT_LIMIT_DEFAULT);

     i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_OT_FAULT_LIMIT);
     g_assert_cmphex(i2c_value, ==, ISL_OT_FAULT_LIMIT_DEFAULT);

     i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_OT_WARN_LIMIT);
     g_assert_cmphex(i2c_value, ==, ISL_OT_WARN_LIMIT_DEFAULT);

     i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_VIN_OV_WARN_LIMIT);
     g_assert_cmphex(i2c_value, ==, ISL_VIN_OV_WARN_LIMIT_DEFAULT);

     i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_VIN_UV_WARN_LIMIT);
     g_assert_cmphex(i2c_value, ==, ISL_VIN_UV_WARN_LIMIT_DEFAULT);

     i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_IIN_OC_FAULT_LIMIT);
     g_assert_cmphex(i2c_value, ==, ISL_IIN_OC_FAULT_LIMIT_DEFAULT);

     i2c_value = i2c_get8(i2cdev, PMBUS_REVISION);
     g_assert_cmphex(i2c_value, ==, ISL_REVISION_DEFAULT);
 }

 /* test qmp access */
 static void test_tx_rx(void *obj, void *data, QGuestAllocator *alloc)
 {
     uint16_t i2c_value, value;
     QI2CDevice *i2cdev = (QI2CDevice *)obj;

     qmp_isl_pmbus_vr_set(TEST_ID, "vin[0]", 200);
     value = qmp_isl_pmbus_vr_get(TEST_ID, "vin[0]");
     i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_READ_VIN);
     g_assert_cmpuint(value, ==, i2c_value);

     qmp_isl_pmbus_vr_set(TEST_ID, "vout[0]", 2500);
     value = qmp_isl_pmbus_vr_get(TEST_ID, "vout[0]");
     i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_READ_VOUT);
     g_assert_cmpuint(value, ==, i2c_value);

     qmp_isl_pmbus_vr_set(TEST_ID, "iin[0]", 300);
     value = qmp_isl_pmbus_vr_get(TEST_ID, "iin[0]");
     i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_READ_IIN);
     g_assert_cmpuint(value, ==, i2c_value);

     qmp_isl_pmbus_vr_set(TEST_ID, "iout[0]", 310);
     value = qmp_isl_pmbus_vr_get(TEST_ID, "iout[0]");
     i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_READ_IOUT);
     g_assert_cmpuint(value, ==, i2c_value);

     qmp_isl_pmbus_vr_set(TEST_ID, "pin[0]", 100);
     value = qmp_isl_pmbus_vr_get(TEST_ID, "pin[0]");
     i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_READ_PIN);
     g_assert_cmpuint(value, ==, i2c_value);

     qmp_isl_pmbus_vr_set(TEST_ID, "pout[0]", 95);
     value = qmp_isl_pmbus_vr_get(TEST_ID, "pout[0]");
     i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_READ_POUT);
     g_assert_cmpuint(value, ==, i2c_value);

     qmp_isl_pmbus_vr_set(TEST_ID, "temp1[0]", 26);
     value = qmp_isl_pmbus_vr_get(TEST_ID, "temp1[0]");
     i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_READ_TEMPERATURE_1);
     g_assert_cmpuint(value, ==, i2c_value);

     qmp_isl_pmbus_vr_set(TEST_ID, "temp2[0]", 27);
     value = qmp_isl_pmbus_vr_get(TEST_ID, "temp2[0]");
     i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_READ_TEMPERATURE_2);
     g_assert_cmpuint(value, ==, i2c_value);

     qmp_isl_pmbus_vr_set(TEST_ID, "temp3[0]", 28);
     value = qmp_isl_pmbus_vr_get(TEST_ID, "temp3[0]");
     i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_READ_TEMPERATURE_3);
     g_assert_cmpuint(value, ==, i2c_value);

 }

 /* test r/w registers */
 static void test_rw_regs(void *obj, void *data, QGuestAllocator *alloc)
 {
     uint16_t i2c_value;
     QI2CDevice *i2cdev = (QI2CDevice *)obj;

     isl_pmbus_vr_i2c_set16(i2cdev, PMBUS_VOUT_COMMAND, 0x1234);
     i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_VOUT_COMMAND);
     g_assert_cmphex(i2c_value, ==, 0x1234);

     isl_pmbus_vr_i2c_set16(i2cdev, PMBUS_VOUT_TRIM, 0x4567);
     i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_VOUT_TRIM);
     g_assert_cmphex(i2c_value, ==, 0x4567);

     isl_pmbus_vr_i2c_set16(i2cdev, PMBUS_VOUT_MAX, 0x9876);
     i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_VOUT_MAX);
     g_assert_cmphex(i2c_value, ==, 0x9876);

     isl_pmbus_vr_i2c_set16(i2cdev, PMBUS_VOUT_MARGIN_HIGH, 0xABCD);
     i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_VOUT_MARGIN_HIGH);
     g_assert_cmphex(i2c_value, ==, 0xABCD);

     isl_pmbus_vr_i2c_set16(i2cdev, PMBUS_VOUT_MARGIN_LOW, 0xA1B2);
     i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_VOUT_MARGIN_LOW);
     g_assert_cmphex(i2c_value, ==, 0xA1B2);

     isl_pmbus_vr_i2c_set16(i2cdev, PMBUS_VOUT_TRANSITION_RATE, 0xDEF1);
     i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_VOUT_TRANSITION_RATE);
     g_assert_cmphex(i2c_value, ==, 0xDEF1);

     isl_pmbus_vr_i2c_set16(i2cdev, PMBUS_VOUT_DROOP, 0x5678);
     i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_VOUT_DROOP);
     g_assert_cmphex(i2c_value, ==, 0x5678);

     isl_pmbus_vr_i2c_set16(i2cdev, PMBUS_VOUT_MIN, 0x1234);
     i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_VOUT_MIN);
     g_assert_cmphex(i2c_value, ==, 0x1234);

     isl_pmbus_vr_i2c_set16(i2cdev, PMBUS_VOUT_OV_FAULT_LIMIT, 0x2345);
     i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_VOUT_OV_FAULT_LIMIT);
     g_assert_cmphex(i2c_value, ==, 0x2345);

     isl_pmbus_vr_i2c_set16(i2cdev, PMBUS_VOUT_UV_FAULT_LIMIT, 0xFA12);
     i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_VOUT_UV_FAULT_LIMIT);
     g_assert_cmphex(i2c_value, ==, 0xFA12);

     isl_pmbus_vr_i2c_set16(i2cdev, PMBUS_OT_FAULT_LIMIT, 0xF077);
     i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_OT_FAULT_LIMIT);
     g_assert_cmphex(i2c_value, ==, 0xF077);

     isl_pmbus_vr_i2c_set16(i2cdev, PMBUS_OT_WARN_LIMIT, 0x7137);
     i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_OT_WARN_LIMIT);
     g_assert_cmphex(i2c_value, ==, 0x7137);

     isl_pmbus_vr_i2c_set16(i2cdev, PMBUS_VIN_OV_FAULT_LIMIT, 0x3456);
     i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_VIN_OV_FAULT_LIMIT);
     g_assert_cmphex(i2c_value, ==, 0x3456);

     isl_pmbus_vr_i2c_set16(i2cdev, PMBUS_VIN_UV_FAULT_LIMIT, 0xBADA);
     i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_VIN_UV_FAULT_LIMIT);
     g_assert_cmphex(i2c_value, ==, 0xBADA);

     isl_pmbus_vr_i2c_set16(i2cdev, PMBUS_IIN_OC_FAULT_LIMIT, 0xB1B0);
     i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_IIN_OC_FAULT_LIMIT);
     g_assert_cmphex(i2c_value, ==, 0xB1B0);

     i2c_set8(i2cdev, PMBUS_OPERATION, 0xA);
     i2c_value = i2c_get8(i2cdev, PMBUS_OPERATION);
     g_assert_cmphex(i2c_value, ==, 0xA);

     i2c_set8(i2cdev, PMBUS_ON_OFF_CONFIG, 0x42);
     i2c_value = i2c_get8(i2cdev, PMBUS_ON_OFF_CONFIG);
     g_assert_cmphex(i2c_value, ==, 0x42);
 }

 /* test that devices with multiple pages can switch between them */
 static void test_pages_rw(void *obj, void *data, QGuestAllocator *alloc)
 {
     uint16_t i2c_value;
     QI2CDevice *i2cdev = (QI2CDevice *)obj;

     i2c_set8(i2cdev, PMBUS_PAGE, 1);
     i2c_value = i2c_get8(i2cdev, PMBUS_PAGE);
     g_assert_cmphex(i2c_value, ==, 1);

     i2c_set8(i2cdev, PMBUS_PAGE, 0);
     i2c_value = i2c_get8(i2cdev, PMBUS_PAGE);
     g_assert_cmphex(i2c_value, ==, 0);
 }

 /* test read-only registers */
 static void test_ro_regs(void *obj, void *data, QGuestAllocator *alloc)
 {
     uint16_t i2c_init_value, i2c_value;
     QI2CDevice *i2cdev = (QI2CDevice *)obj;

     i2c_init_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_READ_VIN);
     isl_pmbus_vr_i2c_set16(i2cdev, PMBUS_READ_VIN, 0xBEEF);
     i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_READ_VIN);
     g_assert_cmphex(i2c_init_value, ==, i2c_value);

     i2c_init_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_READ_IIN);
     isl_pmbus_vr_i2c_set16(i2cdev, PMBUS_READ_IIN, 0xB00F);
     i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_READ_IIN);
     g_assert_cmphex(i2c_init_value, ==, i2c_value);

     i2c_init_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_READ_VOUT);
     isl_pmbus_vr_i2c_set16(i2cdev, PMBUS_READ_VOUT, 0x1234);
     i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_READ_VOUT);
     g_assert_cmphex(i2c_init_value, ==, i2c_value);

     i2c_init_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_READ_IOUT);
     isl_pmbus_vr_i2c_set16(i2cdev, PMBUS_READ_IOUT, 0x6547);
     i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_READ_IOUT);
     g_assert_cmphex(i2c_init_value, ==, i2c_value);

     i2c_init_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_READ_TEMPERATURE_1);
     isl_pmbus_vr_i2c_set16(i2cdev, PMBUS_READ_TEMPERATURE_1, 0x1597);
     i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_READ_TEMPERATURE_1);
     g_assert_cmphex(i2c_init_value, ==, i2c_value);

     i2c_init_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_READ_TEMPERATURE_2);
     isl_pmbus_vr_i2c_set16(i2cdev, PMBUS_READ_TEMPERATURE_2, 0x1897);
     i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_READ_TEMPERATURE_2);
     g_assert_cmphex(i2c_init_value, ==, i2c_value);

     i2c_init_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_READ_TEMPERATURE_3);
     isl_pmbus_vr_i2c_set16(i2cdev, PMBUS_READ_TEMPERATURE_3, 0x1007);
     i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_READ_TEMPERATURE_3);
     g_assert_cmphex(i2c_init_value, ==, i2c_value);

     i2c_init_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_READ_PIN);
     isl_pmbus_vr_i2c_set16(i2cdev, PMBUS_READ_PIN, 0xDEAD);
     i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_READ_PIN);
     g_assert_cmphex(i2c_init_value, ==, i2c_value);

     i2c_init_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_READ_POUT);
     isl_pmbus_vr_i2c_set16(i2cdev, PMBUS_READ_POUT, 0xD00D);
     i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_READ_POUT);
     g_assert_cmphex(i2c_init_value, ==, i2c_value);
 }

 /* test voltage fault handling */
 static void test_voltage_faults(void *obj, void *data, QGuestAllocator *alloc)
 {
     uint16_t i2c_value;
     uint8_t i2c_byte;
     QI2CDevice *i2cdev = (QI2CDevice *)obj;

     isl_pmbus_vr_i2c_set16(i2cdev, PMBUS_VOUT_OV_WARN_LIMIT, 5000);
     qmp_isl_pmbus_vr_set(TEST_ID, "vout[0]", 5100);

     i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_STATUS_WORD);
     i2c_byte = i2c_get8(i2cdev, PMBUS_STATUS_VOUT);
     g_assert_true((i2c_value & PB_STATUS_VOUT) != 0);
     g_assert_true((i2c_byte & PB_STATUS_VOUT_OV_WARN) != 0);

     qmp_isl_pmbus_vr_set(TEST_ID, "vout[0]", 4500);
     i2c_set8(i2cdev, PMBUS_CLEAR_FAULTS, 0);
     i2c_byte = i2c_get8(i2cdev, PMBUS_STATUS_VOUT);
     g_assert_true((i2c_byte & PB_STATUS_VOUT_OV_WARN) == 0);

     isl_pmbus_vr_i2c_set16(i2cdev, PMBUS_VOUT_UV_WARN_LIMIT, 4600);

     i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_STATUS_WORD);
     i2c_byte = i2c_get8(i2cdev, PMBUS_STATUS_VOUT);
     g_assert_true((i2c_value & PB_STATUS_VOUT) != 0);
     g_assert_true((i2c_byte & PB_STATUS_VOUT_UV_WARN) != 0);

 }

 static void isl_pmbus_vr_register_nodes(void)
 {
     QOSGraphEdgeOptions opts = {
         .extra_device_opts = "id=" TEST_ID ",address=0x43"
     };
     add_qi2c_address(&opts, &(QI2CAddress) { TEST_ADDR });

     qos_node_create_driver("isl69260", i2c_device_create);
     qos_node_consumes("isl69260", "i2c-bus", &opts);

     qos_add_test("test_defaults", "isl69260", test_defaults, NULL);
     qos_add_test("test_tx_rx", "isl69260", test_tx_rx, NULL);
     qos_add_test("test_rw_regs", "isl69260", test_rw_regs, NULL);
     qos_add_test("test_pages_rw", "isl69260", test_pages_rw, NULL);
     qos_add_test("test_ro_regs", "isl69260", test_ro_regs, NULL);
     qos_add_test("test_ov_faults", "isl69260", test_voltage_faults, NULL);

     qos_node_create_driver("raa229004", i2c_device_create);
     qos_node_consumes("raa229004", "i2c-bus", &opts);

     qos_add_test("test_tx_rx", "raa229004", test_tx_rx, NULL);
     qos_add_test("test_rw_regs", "raa229004", test_rw_regs, NULL);
     qos_add_test("test_pages_rw", "raa229004", test_pages_rw, NULL);
     qos_add_test("test_ov_faults", "raa229004", test_voltage_faults, NULL);

     qos_node_create_driver("raa228000", i2c_device_create);
     qos_node_consumes("raa228000", "i2c-bus", &opts);

     qos_add_test("test_defaults", "raa228000", raa228000_test_defaults, NULL);
     qos_add_test("test_tx_rx", "raa228000", test_tx_rx, NULL);
     qos_add_test("test_rw_regs", "raa228000", test_rw_regs, NULL);
     qos_add_test("test_ov_faults", "raa228000", test_voltage_faults, NULL);
 }
 libqos_init(isl_pmbus_vr_register_nodes);
	/*
	* QTests for the ISL_PMBUS digital voltage regulators
	*
	* Copyright 2021 Google LLC
	*
	* This program is free software; you can redistribute it and/or modify it
	* under the terms of the GNU General Public License as published by the
	* Free Software Foundation; either version 2 of the License, or
	* (at your option) any later version.
	*
	* This program is distributed in the hope that it will be useful, but WITHOUT
	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
	* for more details.
	*/

	#include "qemu/osdep.h"
	#include <math.h>
	#include "hw/i2c/pmbus_device.h"
	#include "hw/sensor/isl_pmbus_vr.h"
	#include "libqtest-single.h"
	#include "libqos/qgraph.h"
	#include "libqos/i2c.h"
	#include "qapi/qmp/qdict.h"
	#include "qapi/qmp/qnum.h"
	#include "qemu/bitops.h"

	#define TEST_ID "isl_pmbus_vr-test"
	#define TEST_ADDR (0x43)

	static uint16_t qmp_isl_pmbus_vr_get(const char id, const char property)
	{
	QDict *response;
	uint64_t ret;

	response = qmp("{ 'execute': 'qom-get', 'arguments': { 'path': %s, "
	"'property': %s } }", id, property);
	g_assert(qdict_haskey(response, "return"));
	ret = qnum_get_uint(qobject_to(QNum, qdict_get(response, "return")));
	qobject_unref(response);
	return ret;
	}

	static void qmp_isl_pmbus_vr_set(const char *id,
	const char *property,
	uint16_t value)
	{
	QDict *response;

	response = qmp("{ 'execute': 'qom-set', 'arguments': { 'path': %s, "
	"'property': %s, 'value': %u } }", id, property, value);
	g_assert(qdict_haskey(response, "return"));
	qobject_unref(response);
	}

	/* PMBus commands are little endian vs i2c_set16 in i2c.h which is big endian */
	static uint16_t isl_pmbus_vr_i2c_get16(QI2CDevice *i2cdev, uint8_t reg)
	{
	uint8_t resp[2];
	i2c_read_block(i2cdev, reg, resp, sizeof(resp));
	return (resp[1] << 8) \| resp[0];
	}

	/* PMBus commands are little endian vs i2c_set16 in i2c.h which is big endian */
	static void isl_pmbus_vr_i2c_set16(QI2CDevice *i2cdev, uint8_t reg,
	uint16_t value)
	{
	uint8_t data[2];

	data[0] = value & 255;
	data[1] = value >> 8;
	i2c_write_block(i2cdev, reg, data, sizeof(data));
	}

	static void test_defaults(void obj, void data, QGuestAllocator *alloc)
	{
	uint16_t value, i2c_value;
	QI2CDevice i2cdev = (QI2CDevice )obj;

	value = qmp_isl_pmbus_vr_get(TEST_ID, "vout[0]");
	g_assert_cmpuint(value, ==, ISL_READ_VOUT_DEFAULT);

	i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_READ_IOUT);
	g_assert_cmpuint(i2c_value, ==, ISL_READ_IOUT_DEFAULT);

	value = qmp_isl_pmbus_vr_get(TEST_ID, "pout[0]");
	g_assert_cmpuint(value, ==, ISL_READ_POUT_DEFAULT);

	i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_READ_VIN);
	g_assert_cmpuint(i2c_value, ==, ISL_READ_VIN_DEFAULT);

	value = qmp_isl_pmbus_vr_get(TEST_ID, "iin[0]");
	g_assert_cmpuint(value, ==, ISL_READ_IIN_DEFAULT);

	i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_READ_PIN);
	g_assert_cmpuint(i2c_value, ==, ISL_READ_PIN_DEFAULT);

	value = qmp_isl_pmbus_vr_get(TEST_ID, "temp1[0]");
	g_assert_cmpuint(value, ==, ISL_READ_TEMP_DEFAULT);

	i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_READ_TEMPERATURE_2);
	g_assert_cmpuint(i2c_value, ==, ISL_READ_TEMP_DEFAULT);

	i2c_value = i2c_get8(i2cdev, PMBUS_CAPABILITY);
	g_assert_cmphex(i2c_value, ==, ISL_CAPABILITY_DEFAULT);

	i2c_value = i2c_get8(i2cdev, PMBUS_OPERATION);
	g_assert_cmphex(i2c_value, ==, ISL_OPERATION_DEFAULT);

	i2c_value = i2c_get8(i2cdev, PMBUS_ON_OFF_CONFIG);
	g_assert_cmphex(i2c_value, ==, ISL_ON_OFF_CONFIG_DEFAULT);

	i2c_value = i2c_get8(i2cdev, PMBUS_VOUT_MODE);
	g_assert_cmphex(i2c_value, ==, ISL_VOUT_MODE_DEFAULT);

	i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_VOUT_COMMAND);
	g_assert_cmphex(i2c_value, ==, ISL_VOUT_COMMAND_DEFAULT);

	i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_VOUT_MAX);
	g_assert_cmphex(i2c_value, ==, ISL_VOUT_MAX_DEFAULT);

	i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_VOUT_MARGIN_HIGH);
	g_assert_cmphex(i2c_value, ==, ISL_VOUT_MARGIN_HIGH_DEFAULT);

	i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_VOUT_MARGIN_LOW);
	g_assert_cmphex(i2c_value, ==, ISL_VOUT_MARGIN_LOW_DEFAULT);

	i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_VOUT_TRANSITION_RATE);
	g_assert_cmphex(i2c_value, ==, ISL_VOUT_TRANSITION_RATE_DEFAULT);

	i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_VOUT_OV_FAULT_LIMIT);
	g_assert_cmphex(i2c_value, ==, ISL_VOUT_OV_FAULT_LIMIT_DEFAULT);

	i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_OT_FAULT_LIMIT);
	g_assert_cmphex(i2c_value, ==, ISL_OT_FAULT_LIMIT_DEFAULT);

	i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_OT_WARN_LIMIT);
	g_assert_cmphex(i2c_value, ==, ISL_OT_WARN_LIMIT_DEFAULT);

	i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_VIN_OV_WARN_LIMIT);
	g_assert_cmphex(i2c_value, ==, ISL_VIN_OV_WARN_LIMIT_DEFAULT);

	i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_VIN_UV_WARN_LIMIT);
	g_assert_cmphex(i2c_value, ==, ISL_VIN_UV_WARN_LIMIT_DEFAULT);

	i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_IIN_OC_FAULT_LIMIT);
	g_assert_cmphex(i2c_value, ==, ISL_IIN_OC_FAULT_LIMIT_DEFAULT);

	i2c_value = i2c_get8(i2cdev, PMBUS_REVISION);
	g_assert_cmphex(i2c_value, ==, ISL_REVISION_DEFAULT);
	}

	static void raa228000_test_defaults(void obj, void data,
	QGuestAllocator *alloc)
	{
	uint16_t value, i2c_value;
	QI2CDevice i2cdev = (QI2CDevice )obj;

	value = qmp_isl_pmbus_vr_get(TEST_ID, "vout[0]");
	g_assert_cmpuint(value, ==, 0);

	i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_READ_IOUT);
	g_assert_cmpuint(i2c_value, ==, 0);

	value = qmp_isl_pmbus_vr_get(TEST_ID, "pout[0]");
	g_assert_cmpuint(value, ==, 0);

	i2c_value = i2c_get8(i2cdev, PMBUS_CAPABILITY);
	g_assert_cmphex(i2c_value, ==, ISL_CAPABILITY_DEFAULT);

	i2c_value = i2c_get8(i2cdev, PMBUS_OPERATION);
	g_assert_cmphex(i2c_value, ==, ISL_OPERATION_DEFAULT);

	i2c_value = i2c_get8(i2cdev, PMBUS_ON_OFF_CONFIG);
	g_assert_cmphex(i2c_value, ==, ISL_ON_OFF_CONFIG_DEFAULT);

	i2c_value = i2c_get8(i2cdev, PMBUS_VOUT_MODE);
	g_assert_cmphex(i2c_value, ==, ISL_VOUT_MODE_DEFAULT);

	i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_VOUT_COMMAND);
	g_assert_cmphex(i2c_value, ==, ISL_VOUT_COMMAND_DEFAULT);

	i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_VOUT_MAX);
	g_assert_cmphex(i2c_value, ==, ISL_VOUT_MAX_DEFAULT);

	i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_VOUT_MARGIN_HIGH);
	g_assert_cmphex(i2c_value, ==, ISL_VOUT_MARGIN_HIGH_DEFAULT);

	i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_VOUT_MARGIN_LOW);
	g_assert_cmphex(i2c_value, ==, ISL_VOUT_MARGIN_LOW_DEFAULT);

	i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_VOUT_TRANSITION_RATE);
	g_assert_cmphex(i2c_value, ==, ISL_VOUT_TRANSITION_RATE_DEFAULT);

	i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_VOUT_OV_FAULT_LIMIT);
	g_assert_cmphex(i2c_value, ==, ISL_VOUT_OV_FAULT_LIMIT_DEFAULT);

	i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_OT_FAULT_LIMIT);
	g_assert_cmphex(i2c_value, ==, ISL_OT_FAULT_LIMIT_DEFAULT);

	i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_OT_WARN_LIMIT);
	g_assert_cmphex(i2c_value, ==, ISL_OT_WARN_LIMIT_DEFAULT);

	i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_VIN_OV_WARN_LIMIT);
	g_assert_cmphex(i2c_value, ==, ISL_VIN_OV_WARN_LIMIT_DEFAULT);

	i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_VIN_UV_WARN_LIMIT);
	g_assert_cmphex(i2c_value, ==, ISL_VIN_UV_WARN_LIMIT_DEFAULT);

	i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_IIN_OC_FAULT_LIMIT);
	g_assert_cmphex(i2c_value, ==, ISL_IIN_OC_FAULT_LIMIT_DEFAULT);

	i2c_value = i2c_get8(i2cdev, PMBUS_REVISION);
	g_assert_cmphex(i2c_value, ==, ISL_REVISION_DEFAULT);
	}

	/* test qmp access */
	static void test_tx_rx(void obj, void data, QGuestAllocator *alloc)
	{
	uint16_t i2c_value, value;
	QI2CDevice i2cdev = (QI2CDevice )obj;

	qmp_isl_pmbus_vr_set(TEST_ID, "vin[0]", 200);
	value = qmp_isl_pmbus_vr_get(TEST_ID, "vin[0]");
	i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_READ_VIN);
	g_assert_cmpuint(value, ==, i2c_value);

	qmp_isl_pmbus_vr_set(TEST_ID, "vout[0]", 2500);
	value = qmp_isl_pmbus_vr_get(TEST_ID, "vout[0]");
	i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_READ_VOUT);
	g_assert_cmpuint(value, ==, i2c_value);

	qmp_isl_pmbus_vr_set(TEST_ID, "iin[0]", 300);
	value = qmp_isl_pmbus_vr_get(TEST_ID, "iin[0]");
	i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_READ_IIN);
	g_assert_cmpuint(value, ==, i2c_value);

	qmp_isl_pmbus_vr_set(TEST_ID, "iout[0]", 310);
	value = qmp_isl_pmbus_vr_get(TEST_ID, "iout[0]");
	i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_READ_IOUT);
	g_assert_cmpuint(value, ==, i2c_value);

	qmp_isl_pmbus_vr_set(TEST_ID, "pin[0]", 100);
	value = qmp_isl_pmbus_vr_get(TEST_ID, "pin[0]");
	i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_READ_PIN);
	g_assert_cmpuint(value, ==, i2c_value);

	qmp_isl_pmbus_vr_set(TEST_ID, "pout[0]", 95);
	value = qmp_isl_pmbus_vr_get(TEST_ID, "pout[0]");
	i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_READ_POUT);
	g_assert_cmpuint(value, ==, i2c_value);

	qmp_isl_pmbus_vr_set(TEST_ID, "temp1[0]", 26);
	value = qmp_isl_pmbus_vr_get(TEST_ID, "temp1[0]");
	i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_READ_TEMPERATURE_1);
	g_assert_cmpuint(value, ==, i2c_value);

	qmp_isl_pmbus_vr_set(TEST_ID, "temp2[0]", 27);
	value = qmp_isl_pmbus_vr_get(TEST_ID, "temp2[0]");
	i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_READ_TEMPERATURE_2);
	g_assert_cmpuint(value, ==, i2c_value);

	qmp_isl_pmbus_vr_set(TEST_ID, "temp3[0]", 28);
	value = qmp_isl_pmbus_vr_get(TEST_ID, "temp3[0]");
	i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_READ_TEMPERATURE_3);
	g_assert_cmpuint(value, ==, i2c_value);

	}

	/* test r/w registers */
	static void test_rw_regs(void obj, void data, QGuestAllocator *alloc)
	{
	uint16_t i2c_value;
	QI2CDevice i2cdev = (QI2CDevice )obj;

	isl_pmbus_vr_i2c_set16(i2cdev, PMBUS_VOUT_COMMAND, 0x1234);
	i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_VOUT_COMMAND);
	g_assert_cmphex(i2c_value, ==, 0x1234);

	isl_pmbus_vr_i2c_set16(i2cdev, PMBUS_VOUT_TRIM, 0x4567);
	i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_VOUT_TRIM);
	g_assert_cmphex(i2c_value, ==, 0x4567);

	isl_pmbus_vr_i2c_set16(i2cdev, PMBUS_VOUT_MAX, 0x9876);
	i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_VOUT_MAX);
	g_assert_cmphex(i2c_value, ==, 0x9876);

	isl_pmbus_vr_i2c_set16(i2cdev, PMBUS_VOUT_MARGIN_HIGH, 0xABCD);
	i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_VOUT_MARGIN_HIGH);
	g_assert_cmphex(i2c_value, ==, 0xABCD);

	isl_pmbus_vr_i2c_set16(i2cdev, PMBUS_VOUT_MARGIN_LOW, 0xA1B2);
	i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_VOUT_MARGIN_LOW);
	g_assert_cmphex(i2c_value, ==, 0xA1B2);

	isl_pmbus_vr_i2c_set16(i2cdev, PMBUS_VOUT_TRANSITION_RATE, 0xDEF1);
	i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_VOUT_TRANSITION_RATE);
	g_assert_cmphex(i2c_value, ==, 0xDEF1);

	isl_pmbus_vr_i2c_set16(i2cdev, PMBUS_VOUT_DROOP, 0x5678);
	i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_VOUT_DROOP);
	g_assert_cmphex(i2c_value, ==, 0x5678);

	isl_pmbus_vr_i2c_set16(i2cdev, PMBUS_VOUT_MIN, 0x1234);
	i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_VOUT_MIN);
	g_assert_cmphex(i2c_value, ==, 0x1234);

	isl_pmbus_vr_i2c_set16(i2cdev, PMBUS_VOUT_OV_FAULT_LIMIT, 0x2345);
	i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_VOUT_OV_FAULT_LIMIT);
	g_assert_cmphex(i2c_value, ==, 0x2345);

	isl_pmbus_vr_i2c_set16(i2cdev, PMBUS_VOUT_UV_FAULT_LIMIT, 0xFA12);
	i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_VOUT_UV_FAULT_LIMIT);
	g_assert_cmphex(i2c_value, ==, 0xFA12);

	isl_pmbus_vr_i2c_set16(i2cdev, PMBUS_OT_FAULT_LIMIT, 0xF077);
	i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_OT_FAULT_LIMIT);
	g_assert_cmphex(i2c_value, ==, 0xF077);

	isl_pmbus_vr_i2c_set16(i2cdev, PMBUS_OT_WARN_LIMIT, 0x7137);
	i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_OT_WARN_LIMIT);
	g_assert_cmphex(i2c_value, ==, 0x7137);

	isl_pmbus_vr_i2c_set16(i2cdev, PMBUS_VIN_OV_FAULT_LIMIT, 0x3456);
	i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_VIN_OV_FAULT_LIMIT);
	g_assert_cmphex(i2c_value, ==, 0x3456);

	isl_pmbus_vr_i2c_set16(i2cdev, PMBUS_VIN_UV_FAULT_LIMIT, 0xBADA);
	i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_VIN_UV_FAULT_LIMIT);
	g_assert_cmphex(i2c_value, ==, 0xBADA);

	isl_pmbus_vr_i2c_set16(i2cdev, PMBUS_IIN_OC_FAULT_LIMIT, 0xB1B0);
	i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_IIN_OC_FAULT_LIMIT);
	g_assert_cmphex(i2c_value, ==, 0xB1B0);

	i2c_set8(i2cdev, PMBUS_OPERATION, 0xA);
	i2c_value = i2c_get8(i2cdev, PMBUS_OPERATION);
	g_assert_cmphex(i2c_value, ==, 0xA);

	i2c_set8(i2cdev, PMBUS_ON_OFF_CONFIG, 0x42);
	i2c_value = i2c_get8(i2cdev, PMBUS_ON_OFF_CONFIG);
	g_assert_cmphex(i2c_value, ==, 0x42);
	}

	/* test that devices with multiple pages can switch between them */
	static void test_pages_rw(void obj, void data, QGuestAllocator *alloc)
	{
	uint16_t i2c_value;
	QI2CDevice i2cdev = (QI2CDevice )obj;

	i2c_set8(i2cdev, PMBUS_PAGE, 1);
	i2c_value = i2c_get8(i2cdev, PMBUS_PAGE);
	g_assert_cmphex(i2c_value, ==, 1);

	i2c_set8(i2cdev, PMBUS_PAGE, 0);
	i2c_value = i2c_get8(i2cdev, PMBUS_PAGE);
	g_assert_cmphex(i2c_value, ==, 0);
	}

	/* test read-only registers */
	static void test_ro_regs(void obj, void data, QGuestAllocator *alloc)
	{
	uint16_t i2c_init_value, i2c_value;
	QI2CDevice i2cdev = (QI2CDevice )obj;

	i2c_init_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_READ_VIN);
	isl_pmbus_vr_i2c_set16(i2cdev, PMBUS_READ_VIN, 0xBEEF);
	i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_READ_VIN);
	g_assert_cmphex(i2c_init_value, ==, i2c_value);

	i2c_init_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_READ_IIN);
	isl_pmbus_vr_i2c_set16(i2cdev, PMBUS_READ_IIN, 0xB00F);
	i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_READ_IIN);
	g_assert_cmphex(i2c_init_value, ==, i2c_value);

	i2c_init_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_READ_VOUT);
	isl_pmbus_vr_i2c_set16(i2cdev, PMBUS_READ_VOUT, 0x1234);
	i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_READ_VOUT);
	g_assert_cmphex(i2c_init_value, ==, i2c_value);

	i2c_init_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_READ_IOUT);
	isl_pmbus_vr_i2c_set16(i2cdev, PMBUS_READ_IOUT, 0x6547);
	i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_READ_IOUT);
	g_assert_cmphex(i2c_init_value, ==, i2c_value);

	i2c_init_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_READ_TEMPERATURE_1);
	isl_pmbus_vr_i2c_set16(i2cdev, PMBUS_READ_TEMPERATURE_1, 0x1597);
	i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_READ_TEMPERATURE_1);
	g_assert_cmphex(i2c_init_value, ==, i2c_value);

	i2c_init_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_READ_TEMPERATURE_2);
	isl_pmbus_vr_i2c_set16(i2cdev, PMBUS_READ_TEMPERATURE_2, 0x1897);
	i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_READ_TEMPERATURE_2);
	g_assert_cmphex(i2c_init_value, ==, i2c_value);

	i2c_init_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_READ_TEMPERATURE_3);
	isl_pmbus_vr_i2c_set16(i2cdev, PMBUS_READ_TEMPERATURE_3, 0x1007);
	i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_READ_TEMPERATURE_3);
	g_assert_cmphex(i2c_init_value, ==, i2c_value);

	i2c_init_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_READ_PIN);
	isl_pmbus_vr_i2c_set16(i2cdev, PMBUS_READ_PIN, 0xDEAD);
	i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_READ_PIN);
	g_assert_cmphex(i2c_init_value, ==, i2c_value);

	i2c_init_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_READ_POUT);
	isl_pmbus_vr_i2c_set16(i2cdev, PMBUS_READ_POUT, 0xD00D);
	i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_READ_POUT);
	g_assert_cmphex(i2c_init_value, ==, i2c_value);
	}

	/* test voltage fault handling */
	static void test_voltage_faults(void obj, void data, QGuestAllocator *alloc)
	{
	uint16_t i2c_value;
	uint8_t i2c_byte;
	QI2CDevice i2cdev = (QI2CDevice )obj;

	isl_pmbus_vr_i2c_set16(i2cdev, PMBUS_VOUT_OV_WARN_LIMIT, 5000);
	qmp_isl_pmbus_vr_set(TEST_ID, "vout[0]", 5100);

	i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_STATUS_WORD);
	i2c_byte = i2c_get8(i2cdev, PMBUS_STATUS_VOUT);
	g_assert_true((i2c_value & PB_STATUS_VOUT) != 0);
	g_assert_true((i2c_byte & PB_STATUS_VOUT_OV_WARN) != 0);

	qmp_isl_pmbus_vr_set(TEST_ID, "vout[0]", 4500);
	i2c_set8(i2cdev, PMBUS_CLEAR_FAULTS, 0);
	i2c_byte = i2c_get8(i2cdev, PMBUS_STATUS_VOUT);
	g_assert_true((i2c_byte & PB_STATUS_VOUT_OV_WARN) == 0);

	isl_pmbus_vr_i2c_set16(i2cdev, PMBUS_VOUT_UV_WARN_LIMIT, 4600);

	i2c_value = isl_pmbus_vr_i2c_get16(i2cdev, PMBUS_STATUS_WORD);
	i2c_byte = i2c_get8(i2cdev, PMBUS_STATUS_VOUT);
	g_assert_true((i2c_value & PB_STATUS_VOUT) != 0);
	g_assert_true((i2c_byte & PB_STATUS_VOUT_UV_WARN) != 0);

	}

	static void isl_pmbus_vr_register_nodes(void)
	{
	QOSGraphEdgeOptions opts = {
	.extra_device_opts = "id=" TEST_ID ",address=0x43"
	};
	add_qi2c_address(&opts, &(QI2CAddress) { TEST_ADDR });

	qos_node_create_driver("isl69260", i2c_device_create);
	qos_node_consumes("isl69260", "i2c-bus", &opts);

	qos_add_test("test_defaults", "isl69260", test_defaults, NULL);
	qos_add_test("test_tx_rx", "isl69260", test_tx_rx, NULL);
	qos_add_test("test_rw_regs", "isl69260", test_rw_regs, NULL);
	qos_add_test("test_pages_rw", "isl69260", test_pages_rw, NULL);
	qos_add_test("test_ro_regs", "isl69260", test_ro_regs, NULL);
	qos_add_test("test_ov_faults", "isl69260", test_voltage_faults, NULL);

	qos_node_create_driver("raa229004", i2c_device_create);
	qos_node_consumes("raa229004", "i2c-bus", &opts);

	qos_add_test("test_tx_rx", "raa229004", test_tx_rx, NULL);
	qos_add_test("test_rw_regs", "raa229004", test_rw_regs, NULL);
	qos_add_test("test_pages_rw", "raa229004", test_pages_rw, NULL);
	qos_add_test("test_ov_faults", "raa229004", test_voltage_faults, NULL);

	qos_node_create_driver("raa228000", i2c_device_create);
	qos_node_consumes("raa228000", "i2c-bus", &opts);

	qos_add_test("test_defaults", "raa228000", raa228000_test_defaults, NULL);
	qos_add_test("test_tx_rx", "raa228000", test_tx_rx, NULL);
	qos_add_test("test_rw_regs", "raa228000", test_rw_regs, NULL);
	qos_add_test("test_ov_faults", "raa228000", test_voltage_faults, NULL);
	}
	libqos_init(isl_pmbus_vr_register_nodes);