| 1 | /* |
| 2 | * QTests for the ADM1272 hotswap controller |
| 3 | * |
| 4 | * Copyright 2021 Google LLC |
| 5 | * |
| 6 | * SPDX-License-Identifier: GPL-2.0-or-later |
| 7 | */ |
| 8 | |
| 9 | #include "qemu/osdep.h" |
| 10 | #include <math.h> |
| 11 | #include "hw/i2c/pmbus_device.h" |
| 12 | #include "libqtest-single.h" |
| 13 | #include "libqos/qgraph.h" |
| 14 | #include "libqos/i2c.h" |
| 15 | #include "qobject/qdict.h" |
| 16 | #include "qobject/qnum.h" |
| 17 | #include "qemu/bitops.h" |
| 18 | |
| 19 | #define TEST_ID "adm1272-test" |
| 20 | #define TEST_ADDR (0x10) |
| 21 | |
| 22 | #define ADM1272_RESTART_TIME 0xCC |
| 23 | #define ADM1272_MFR_PEAK_IOUT 0xD0 |
| 24 | #define ADM1272_MFR_PEAK_VIN 0xD1 |
| 25 | #define ADM1272_MFR_PEAK_VOUT 0xD2 |
| 26 | #define ADM1272_MFR_PMON_CONTROL 0xD3 |
| 27 | #define ADM1272_MFR_PMON_CONFIG 0xD4 |
| 28 | #define ADM1272_MFR_ALERT1_CONFIG 0xD5 |
| 29 | #define ADM1272_MFR_ALERT2_CONFIG 0xD6 |
| 30 | #define ADM1272_MFR_PEAK_TEMPERATURE 0xD7 |
| 31 | #define ADM1272_MFR_DEVICE_CONFIG 0xD8 |
| 32 | #define ADM1272_MFR_POWER_CYCLE 0xD9 |
| 33 | #define ADM1272_MFR_PEAK_PIN 0xDA |
| 34 | #define ADM1272_MFR_READ_PIN_EXT 0xDB |
| 35 | #define ADM1272_MFR_READ_EIN_EXT 0xDC |
| 36 | |
| 37 | #define ADM1272_HYSTERESIS_LOW 0xF2 |
| 38 | #define ADM1272_HYSTERESIS_HIGH 0xF3 |
| 39 | #define ADM1272_STATUS_HYSTERESIS 0xF4 |
| 40 | #define ADM1272_STATUS_GPIO 0xF5 |
| 41 | #define ADM1272_STRT_UP_IOUT_LIM 0xF6 |
| 42 | |
| 43 | /* Defaults */ |
| 44 | #define ADM1272_OPERATION_DEFAULT 0x80 |
| 45 | #define ADM1272_CAPABILITY_DEFAULT 0xB0 |
| 46 | #define ADM1272_CAPABILITY_NO_PEC 0x30 |
| 47 | #define ADM1272_DIRECT_MODE 0x40 |
| 48 | #define ADM1272_HIGH_LIMIT_DEFAULT 0x0FFF |
| 49 | #define ADM1272_PIN_OP_DEFAULT 0x7FFF |
| 50 | #define ADM1272_PMBUS_REVISION_DEFAULT 0x22 |
| 51 | #define ADM1272_MFR_ID_DEFAULT "ADI" |
| 52 | #define ADM1272_MODEL_DEFAULT "ADM1272-A1" |
| 53 | #define ADM1272_MFR_DEFAULT_REVISION "25" |
| 54 | #define ADM1272_DEFAULT_DATE "160301" |
| 55 | #define ADM1272_RESTART_TIME_DEFAULT 0x64 |
| 56 | #define ADM1272_PMON_CONTROL_DEFAULT 0x1 |
| 57 | #define ADM1272_PMON_CONFIG_DEFAULT 0x3F35 |
| 58 | #define ADM1272_DEVICE_CONFIG_DEFAULT 0x8 |
| 59 | #define ADM1272_HYSTERESIS_HIGH_DEFAULT 0xFFFF |
| 60 | #define ADM1272_STRT_UP_IOUT_LIM_DEFAULT 0x000F |
| 61 | #define ADM1272_VOLT_DEFAULT 12000 |
| 62 | #define ADM1272_IOUT_DEFAULT 25000 |
| 63 | #define ADM1272_PWR_DEFAULT 300 /* 12V 25A */ |
| 64 | #define ADM1272_SHUNT 300 /* micro-ohms */ |
| 65 | #define ADM1272_VOLTAGE_COEFF_DEFAULT 1 |
| 66 | #define ADM1272_CURRENT_COEFF_DEFAULT 3 |
| 67 | #define ADM1272_PWR_COEFF_DEFAULT 7 |
| 68 | #define ADM1272_IOUT_OFFSET 0x5000 |
| 69 | #define ADM1272_IOUT_OFFSET 0x5000 |
| 70 | |
| 71 | static const PMBusCoefficients adm1272_coefficients[] = { |
| 72 | [0] = { 6770, 0, -2 }, /* voltage, vrange 60V */ |
| 73 | [1] = { 4062, 0, -2 }, /* voltage, vrange 100V */ |
| 74 | [2] = { 1326, 20480, -1 }, /* current, vsense range 15mV */ |
| 75 | [3] = { 663, 20480, -1 }, /* current, vsense range 30mV */ |
| 76 | [4] = { 3512, 0, -2 }, /* power, vrange 60V, irange 15mV */ |
| 77 | [5] = { 21071, 0, -3 }, /* power, vrange 100V, irange 15mV */ |
| 78 | [6] = { 17561, 0, -3 }, /* power, vrange 60V, irange 30mV */ |
| 79 | [7] = { 10535, 0, -3 }, /* power, vrange 100V, irange 30mV */ |
| 80 | [8] = { 42, 31871, -1 }, /* temperature */ |
| 81 | }; |
| 82 | |
| 83 | uint16_t pmbus_data2direct_mode(PMBusCoefficients c, uint32_t value) |
| 84 | { |
| 85 | /* R is usually negative to fit large readings into 16 bits */ |
| 86 | uint16_t y = (c.m * value + c.b) * pow(10, c.R); |
| 87 | return y; |
| 88 | } |
| 89 | |
| 90 | uint32_t pmbus_direct_mode2data(PMBusCoefficients c, uint16_t value) |
| 91 | { |
| 92 | /* X = (Y * 10^-R - b) / m */ |
| 93 | uint32_t x = (value / pow(10, c.R) - c.b) / c.m; |
| 94 | return x; |
| 95 | } |
| 96 | |
| 97 | |
| 98 | static uint16_t adm1272_millivolts_to_direct(uint32_t value) |
| 99 | { |
| 100 | PMBusCoefficients c = adm1272_coefficients[ADM1272_VOLTAGE_COEFF_DEFAULT]; |
| 101 | c.b = c.b * 1000; |
| 102 | c.R = c.R - 3; |
| 103 | return pmbus_data2direct_mode(c, value); |
| 104 | } |
| 105 | |
| 106 | static uint32_t adm1272_direct_to_millivolts(uint16_t value) |
| 107 | { |
| 108 | PMBusCoefficients c = adm1272_coefficients[ADM1272_VOLTAGE_COEFF_DEFAULT]; |
| 109 | c.b = c.b * 1000; |
| 110 | c.R = c.R - 3; |
| 111 | return pmbus_direct_mode2data(c, value); |
| 112 | } |
| 113 | |
| 114 | static uint16_t adm1272_milliamps_to_direct(uint32_t value) |
| 115 | { |
| 116 | PMBusCoefficients c = adm1272_coefficients[ADM1272_CURRENT_COEFF_DEFAULT]; |
| 117 | /* Y = (m * r_sense * x - b) * 10^R */ |
| 118 | c.m = c.m * ADM1272_SHUNT / 1000; /* micro-ohms */ |
| 119 | c.b = c.b * 1000; |
| 120 | c.R = c.R - 3; |
| 121 | return pmbus_data2direct_mode(c, value); |
| 122 | } |
| 123 | |
| 124 | static uint32_t adm1272_direct_to_milliamps(uint16_t value) |
| 125 | { |
| 126 | PMBusCoefficients c = adm1272_coefficients[ADM1272_CURRENT_COEFF_DEFAULT]; |
| 127 | c.m = c.m * ADM1272_SHUNT / 1000; |
| 128 | c.b = c.b * 1000; |
| 129 | c.R = c.R - 3; |
| 130 | return pmbus_direct_mode2data(c, value); |
| 131 | } |
| 132 | |
| 133 | static uint16_t adm1272_watts_to_direct(uint32_t value) |
| 134 | { |
| 135 | PMBusCoefficients c = adm1272_coefficients[ADM1272_PWR_COEFF_DEFAULT]; |
| 136 | c.m = c.m * ADM1272_SHUNT / 1000; |
| 137 | return pmbus_data2direct_mode(c, value); |
| 138 | } |
| 139 | |
| 140 | static uint32_t adm1272_direct_to_watts(uint16_t value) |
| 141 | { |
| 142 | PMBusCoefficients c = adm1272_coefficients[ADM1272_PWR_COEFF_DEFAULT]; |
| 143 | c.m = c.m * ADM1272_SHUNT / 1000; |
| 144 | return pmbus_direct_mode2data(c, value); |
| 145 | } |
| 146 | |
| 147 | static uint16_t qmp_adm1272_get(const char *id, const char *property) |
| 148 | { |
| 149 | QDict *response; |
| 150 | uint64_t ret; |
| 151 | |
| 152 | response = qmp("{ 'execute': 'qom-get', 'arguments': { 'path': %s, " |
| 153 | "'property': %s } }", id, property); |
| 154 | g_assert(qdict_haskey(response, "return")); |
| 155 | ret = qnum_get_uint(qobject_to(QNum, qdict_get(response, "return"))); |
| 156 | qobject_unref(response); |
| 157 | return ret; |
| 158 | } |
| 159 | |
| 160 | static void qmp_adm1272_set(const char *id, |
| 161 | const char *property, |
| 162 | uint16_t value) |
| 163 | { |
| 164 | QDict *response; |
| 165 | |
| 166 | response = qmp("{ 'execute': 'qom-set', 'arguments': { 'path': %s, " |
| 167 | "'property': %s, 'value': %u } }", id, property, value); |
| 168 | g_assert(qdict_haskey(response, "return")); |
| 169 | qobject_unref(response); |
| 170 | } |
| 171 | |
| 172 | /* PMBus commands are little endian vs i2c_set16 in i2c.h which is big endian */ |
| 173 | static uint16_t adm1272_i2c_get16(QI2CDevice *i2cdev, uint8_t reg) |
| 174 | { |
| 175 | uint8_t resp[2]; |
| 176 | i2c_read_block(i2cdev, reg, resp, sizeof(resp)); |
| 177 | return (resp[1] << 8) | resp[0]; |
| 178 | } |
| 179 | |
| 180 | /* PMBus commands are little endian vs i2c_set16 in i2c.h which is big endian */ |
| 181 | static void adm1272_i2c_set16(QI2CDevice *i2cdev, uint8_t reg, uint16_t value) |
| 182 | { |
| 183 | uint8_t data[2]; |
| 184 | |
| 185 | data[0] = value & 255; |
| 186 | data[1] = value >> 8; |
| 187 | i2c_write_block(i2cdev, reg, data, sizeof(data)); |
| 188 | } |
| 189 | |
| 190 | static void test_defaults(void *obj, void *data, QGuestAllocator *alloc) |
| 191 | { |
| 192 | uint16_t value, i2c_value; |
| 193 | int16_t err; |
| 194 | QI2CDevice *i2cdev = (QI2CDevice *)obj; |
| 195 | value = qmp_adm1272_get(TEST_ID, "vout"); |
| 196 | err = ADM1272_VOLT_DEFAULT - value; |
| 197 | g_assert_cmpuint(abs(err), <, ADM1272_VOLT_DEFAULT / 20); |
| 198 | |
| 199 | i2c_value = i2c_get8(i2cdev, PMBUS_OPERATION); |
| 200 | g_assert_cmphex(i2c_value, ==, ADM1272_OPERATION_DEFAULT); |
| 201 | |
| 202 | i2c_value = i2c_get8(i2cdev, PMBUS_VOUT_MODE); |
| 203 | g_assert_cmphex(i2c_value, ==, ADM1272_DIRECT_MODE); |
| 204 | |
| 205 | i2c_value = adm1272_i2c_get16(i2cdev, PMBUS_VOUT_OV_WARN_LIMIT); |
| 206 | g_assert_cmphex(i2c_value, ==, ADM1272_HIGH_LIMIT_DEFAULT); |
| 207 | |
| 208 | i2c_value = adm1272_i2c_get16(i2cdev, PMBUS_VOUT_UV_WARN_LIMIT); |
| 209 | g_assert_cmphex(i2c_value, ==, 0); |
| 210 | |
| 211 | i2c_value = adm1272_i2c_get16(i2cdev, PMBUS_IOUT_OC_WARN_LIMIT); |
| 212 | g_assert_cmphex(i2c_value, ==, ADM1272_HIGH_LIMIT_DEFAULT); |
| 213 | |
| 214 | i2c_value = adm1272_i2c_get16(i2cdev, PMBUS_OT_FAULT_LIMIT); |
| 215 | g_assert_cmphex(i2c_value, ==, ADM1272_HIGH_LIMIT_DEFAULT); |
| 216 | |
| 217 | i2c_value = adm1272_i2c_get16(i2cdev, PMBUS_OT_WARN_LIMIT); |
| 218 | g_assert_cmphex(i2c_value, ==, ADM1272_HIGH_LIMIT_DEFAULT); |
| 219 | |
| 220 | i2c_value = adm1272_i2c_get16(i2cdev, PMBUS_VIN_OV_WARN_LIMIT); |
| 221 | g_assert_cmphex(i2c_value, ==, ADM1272_HIGH_LIMIT_DEFAULT); |
| 222 | |
| 223 | i2c_value = adm1272_i2c_get16(i2cdev, PMBUS_VIN_UV_WARN_LIMIT); |
| 224 | g_assert_cmphex(i2c_value, ==, 0); |
| 225 | |
| 226 | i2c_value = adm1272_i2c_get16(i2cdev, PMBUS_PIN_OP_WARN_LIMIT); |
| 227 | g_assert_cmphex(i2c_value, ==, ADM1272_PIN_OP_DEFAULT); |
| 228 | |
| 229 | i2c_value = i2c_get8(i2cdev, PMBUS_REVISION); |
| 230 | g_assert_cmphex(i2c_value, ==, ADM1272_PMBUS_REVISION_DEFAULT); |
| 231 | |
| 232 | i2c_value = i2c_get8(i2cdev, ADM1272_MFR_PMON_CONTROL); |
| 233 | g_assert_cmphex(i2c_value, ==, ADM1272_PMON_CONTROL_DEFAULT); |
| 234 | |
| 235 | i2c_value = adm1272_i2c_get16(i2cdev, ADM1272_MFR_PMON_CONFIG); |
| 236 | g_assert_cmphex(i2c_value, ==, ADM1272_PMON_CONFIG_DEFAULT); |
| 237 | |
| 238 | i2c_value = adm1272_i2c_get16(i2cdev, ADM1272_MFR_DEVICE_CONFIG); |
| 239 | g_assert_cmphex(i2c_value, ==, ADM1272_DEVICE_CONFIG_DEFAULT); |
| 240 | |
| 241 | i2c_value = adm1272_i2c_get16(i2cdev, ADM1272_HYSTERESIS_HIGH); |
| 242 | g_assert_cmphex(i2c_value, ==, ADM1272_HYSTERESIS_HIGH_DEFAULT); |
| 243 | |
| 244 | i2c_value = adm1272_i2c_get16(i2cdev, ADM1272_STRT_UP_IOUT_LIM); |
| 245 | g_assert_cmphex(i2c_value, ==, ADM1272_STRT_UP_IOUT_LIM_DEFAULT); |
| 246 | } |
| 247 | |
| 248 | /* test qmp access */ |
| 249 | static void test_tx_rx(void *obj, void *data, QGuestAllocator *alloc) |
| 250 | { |
| 251 | uint16_t i2c_value, value, i2c_voltage, i2c_pwr, lossy_value; |
| 252 | QI2CDevice *i2cdev = (QI2CDevice *)obj; |
| 253 | |
| 254 | /* converting to direct mode is lossy - we generate the same loss here */ |
| 255 | lossy_value = |
| 256 | adm1272_direct_to_millivolts(adm1272_millivolts_to_direct(1000)); |
| 257 | qmp_adm1272_set(TEST_ID, "vin", 1000); |
| 258 | value = qmp_adm1272_get(TEST_ID, "vin"); |
| 259 | i2c_value = adm1272_i2c_get16(i2cdev, PMBUS_READ_VIN); |
| 260 | i2c_voltage = adm1272_direct_to_millivolts(i2c_value); |
| 261 | g_assert_cmpuint(value, ==, i2c_voltage); |
| 262 | g_assert_cmpuint(i2c_voltage, ==, lossy_value); |
| 263 | |
| 264 | lossy_value = |
| 265 | adm1272_direct_to_millivolts(adm1272_millivolts_to_direct(1500)); |
| 266 | qmp_adm1272_set(TEST_ID, "vout", 1500); |
| 267 | value = qmp_adm1272_get(TEST_ID, "vout"); |
| 268 | i2c_value = adm1272_i2c_get16(i2cdev, PMBUS_READ_VOUT); |
| 269 | i2c_voltage = adm1272_direct_to_millivolts(i2c_value); |
| 270 | g_assert_cmpuint(value, ==, i2c_voltage); |
| 271 | g_assert_cmpuint(i2c_voltage, ==, lossy_value); |
| 272 | |
| 273 | lossy_value = |
| 274 | adm1272_direct_to_milliamps(adm1272_milliamps_to_direct(1600)); |
| 275 | qmp_adm1272_set(TEST_ID, "iout", 1600); |
| 276 | value = qmp_adm1272_get(TEST_ID, "iout"); |
| 277 | i2c_value = adm1272_i2c_get16(i2cdev, PMBUS_READ_IOUT); |
| 278 | i2c_value = adm1272_direct_to_milliamps(i2c_value); |
| 279 | g_assert_cmphex(value, ==, i2c_value); |
| 280 | g_assert_cmphex(i2c_value, ==, lossy_value); |
| 281 | |
| 282 | lossy_value = |
| 283 | adm1272_direct_to_watts(adm1272_watts_to_direct(320)); |
| 284 | qmp_adm1272_set(TEST_ID, "pin", 320); |
| 285 | value = qmp_adm1272_get(TEST_ID, "pin"); |
| 286 | i2c_value = adm1272_i2c_get16(i2cdev, PMBUS_READ_PIN); |
| 287 | i2c_pwr = adm1272_direct_to_watts(i2c_value); |
| 288 | g_assert_cmphex(value, ==, i2c_pwr); |
| 289 | g_assert_cmphex(i2c_pwr, ==, lossy_value); |
| 290 | } |
| 291 | |
| 292 | /* test r/w registers */ |
| 293 | static void test_rw_regs(void *obj, void *data, QGuestAllocator *alloc) |
| 294 | { |
| 295 | uint16_t i2c_value; |
| 296 | QI2CDevice *i2cdev = (QI2CDevice *)obj; |
| 297 | |
| 298 | adm1272_i2c_set16(i2cdev, PMBUS_VOUT_OV_WARN_LIMIT, 0xABCD); |
| 299 | i2c_value = adm1272_i2c_get16(i2cdev, PMBUS_VOUT_OV_WARN_LIMIT); |
| 300 | g_assert_cmphex(i2c_value, ==, 0xABCD); |
| 301 | |
| 302 | adm1272_i2c_set16(i2cdev, PMBUS_VOUT_UV_WARN_LIMIT, 0xCDEF); |
| 303 | i2c_value = adm1272_i2c_get16(i2cdev, PMBUS_VOUT_UV_WARN_LIMIT); |
| 304 | g_assert_cmphex(i2c_value, ==, 0xCDEF); |
| 305 | |
| 306 | adm1272_i2c_set16(i2cdev, PMBUS_IOUT_OC_WARN_LIMIT, 0x1234); |
| 307 | i2c_value = adm1272_i2c_get16(i2cdev, PMBUS_IOUT_OC_WARN_LIMIT); |
| 308 | g_assert_cmphex(i2c_value, ==, 0x1234); |
| 309 | |
| 310 | adm1272_i2c_set16(i2cdev, PMBUS_OT_FAULT_LIMIT, 0x5678); |
| 311 | i2c_value = adm1272_i2c_get16(i2cdev, PMBUS_OT_FAULT_LIMIT); |
| 312 | g_assert_cmphex(i2c_value, ==, 0x5678); |
| 313 | |
| 314 | adm1272_i2c_set16(i2cdev, PMBUS_OT_WARN_LIMIT, 0xABDC); |
| 315 | i2c_value = adm1272_i2c_get16(i2cdev, PMBUS_OT_WARN_LIMIT); |
| 316 | g_assert_cmphex(i2c_value, ==, 0xABDC); |
| 317 | |
| 318 | adm1272_i2c_set16(i2cdev, PMBUS_VIN_OV_WARN_LIMIT, 0xCDEF); |
| 319 | i2c_value = adm1272_i2c_get16(i2cdev, PMBUS_VIN_OV_WARN_LIMIT); |
| 320 | g_assert_cmphex(i2c_value, ==, 0xCDEF); |
| 321 | |
| 322 | adm1272_i2c_set16(i2cdev, PMBUS_VIN_UV_WARN_LIMIT, 0x2345); |
| 323 | i2c_value = adm1272_i2c_get16(i2cdev, PMBUS_VIN_UV_WARN_LIMIT); |
| 324 | g_assert_cmphex(i2c_value, ==, 0x2345); |
| 325 | |
| 326 | i2c_set8(i2cdev, ADM1272_RESTART_TIME, 0xF8); |
| 327 | i2c_value = i2c_get8(i2cdev, ADM1272_RESTART_TIME); |
| 328 | g_assert_cmphex(i2c_value, ==, 0xF8); |
| 329 | |
| 330 | i2c_set8(i2cdev, ADM1272_MFR_PMON_CONTROL, 0); |
| 331 | i2c_value = i2c_get8(i2cdev, ADM1272_MFR_PMON_CONTROL); |
| 332 | g_assert_cmpuint(i2c_value, ==, 0); |
| 333 | |
| 334 | adm1272_i2c_set16(i2cdev, ADM1272_MFR_PMON_CONFIG, 0xDEF0); |
| 335 | i2c_value = adm1272_i2c_get16(i2cdev, ADM1272_MFR_PMON_CONFIG); |
| 336 | g_assert_cmphex(i2c_value, ==, 0xDEF0); |
| 337 | |
| 338 | adm1272_i2c_set16(i2cdev, ADM1272_MFR_ALERT1_CONFIG, 0x0123); |
| 339 | i2c_value = adm1272_i2c_get16(i2cdev, ADM1272_MFR_ALERT1_CONFIG); |
| 340 | g_assert_cmphex(i2c_value, ==, 0x0123); |
| 341 | |
| 342 | adm1272_i2c_set16(i2cdev, ADM1272_MFR_ALERT2_CONFIG, 0x9876); |
| 343 | i2c_value = adm1272_i2c_get16(i2cdev, ADM1272_MFR_ALERT2_CONFIG); |
| 344 | g_assert_cmphex(i2c_value, ==, 0x9876); |
| 345 | |
| 346 | adm1272_i2c_set16(i2cdev, ADM1272_MFR_DEVICE_CONFIG, 0x3456); |
| 347 | i2c_value = adm1272_i2c_get16(i2cdev, ADM1272_MFR_DEVICE_CONFIG); |
| 348 | g_assert_cmphex(i2c_value, ==, 0x3456); |
| 349 | |
| 350 | adm1272_i2c_set16(i2cdev, ADM1272_HYSTERESIS_LOW, 0xCABA); |
| 351 | i2c_value = adm1272_i2c_get16(i2cdev, ADM1272_HYSTERESIS_LOW); |
| 352 | g_assert_cmphex(i2c_value, ==, 0xCABA); |
| 353 | |
| 354 | adm1272_i2c_set16(i2cdev, ADM1272_HYSTERESIS_HIGH, 0x6789); |
| 355 | i2c_value = adm1272_i2c_get16(i2cdev, ADM1272_HYSTERESIS_HIGH); |
| 356 | g_assert_cmphex(i2c_value, ==, 0x6789); |
| 357 | |
| 358 | adm1272_i2c_set16(i2cdev, ADM1272_STRT_UP_IOUT_LIM, 0x9876); |
| 359 | i2c_value = adm1272_i2c_get16(i2cdev, ADM1272_STRT_UP_IOUT_LIM); |
| 360 | g_assert_cmphex(i2c_value, ==, 0x9876); |
| 361 | |
| 362 | adm1272_i2c_set16(i2cdev, PMBUS_OPERATION, 0xA); |
| 363 | i2c_value = i2c_get8(i2cdev, PMBUS_OPERATION); |
| 364 | g_assert_cmphex(i2c_value, ==, 0xA); |
| 365 | } |
| 366 | |
| 367 | /* test read-only registers */ |
| 368 | static void test_ro_regs(void *obj, void *data, QGuestAllocator *alloc) |
| 369 | { |
| 370 | uint16_t i2c_init_value, i2c_value; |
| 371 | QI2CDevice *i2cdev = (QI2CDevice *)obj; |
| 372 | |
| 373 | i2c_init_value = adm1272_i2c_get16(i2cdev, PMBUS_READ_VIN); |
| 374 | adm1272_i2c_set16(i2cdev, PMBUS_READ_VIN, 0xBEEF); |
| 375 | i2c_value = adm1272_i2c_get16(i2cdev, PMBUS_READ_VIN); |
| 376 | g_assert_cmphex(i2c_init_value, ==, i2c_value); |
| 377 | |
| 378 | i2c_init_value = adm1272_i2c_get16(i2cdev, PMBUS_READ_VOUT); |
| 379 | adm1272_i2c_set16(i2cdev, PMBUS_READ_VOUT, 0x1234); |
| 380 | i2c_value = adm1272_i2c_get16(i2cdev, PMBUS_READ_VOUT); |
| 381 | g_assert_cmphex(i2c_init_value, ==, i2c_value); |
| 382 | |
| 383 | i2c_init_value = adm1272_i2c_get16(i2cdev, PMBUS_READ_IOUT); |
| 384 | adm1272_i2c_set16(i2cdev, PMBUS_READ_IOUT, 0x6547); |
| 385 | i2c_value = adm1272_i2c_get16(i2cdev, PMBUS_READ_IOUT); |
| 386 | g_assert_cmphex(i2c_init_value, ==, i2c_value); |
| 387 | |
| 388 | i2c_init_value = adm1272_i2c_get16(i2cdev, PMBUS_READ_TEMPERATURE_1); |
| 389 | adm1272_i2c_set16(i2cdev, PMBUS_READ_TEMPERATURE_1, 0x1597); |
| 390 | i2c_value = adm1272_i2c_get16(i2cdev, PMBUS_READ_TEMPERATURE_1); |
| 391 | g_assert_cmphex(i2c_init_value, ==, i2c_value); |
| 392 | |
| 393 | i2c_init_value = adm1272_i2c_get16(i2cdev, PMBUS_READ_PIN); |
| 394 | adm1272_i2c_set16(i2cdev, PMBUS_READ_PIN, 0xDEAD); |
| 395 | i2c_value = adm1272_i2c_get16(i2cdev, PMBUS_READ_PIN); |
| 396 | g_assert_cmphex(i2c_init_value, ==, i2c_value); |
| 397 | } |
| 398 | |
| 399 | /* test voltage fault handling */ |
| 400 | static void test_voltage_faults(void *obj, void *data, QGuestAllocator *alloc) |
| 401 | { |
| 402 | uint16_t i2c_value; |
| 403 | uint8_t i2c_byte; |
| 404 | QI2CDevice *i2cdev = (QI2CDevice *)obj; |
| 405 | |
| 406 | adm1272_i2c_set16(i2cdev, PMBUS_VOUT_OV_WARN_LIMIT, |
| 407 | adm1272_millivolts_to_direct(5000)); |
| 408 | qmp_adm1272_set(TEST_ID, "vout", 5100); |
| 409 | |
| 410 | i2c_value = adm1272_i2c_get16(i2cdev, PMBUS_STATUS_WORD); |
| 411 | i2c_byte = i2c_get8(i2cdev, PMBUS_STATUS_VOUT); |
| 412 | g_assert_true((i2c_value & PB_STATUS_VOUT) != 0); |
| 413 | g_assert_true((i2c_byte & PB_STATUS_VOUT_OV_WARN) != 0); |
| 414 | |
| 415 | qmp_adm1272_set(TEST_ID, "vout", 4500); |
| 416 | i2c_set8(i2cdev, PMBUS_CLEAR_FAULTS, 0); |
| 417 | i2c_byte = i2c_get8(i2cdev, PMBUS_STATUS_VOUT); |
| 418 | g_assert_true((i2c_byte & PB_STATUS_VOUT_OV_WARN) == 0); |
| 419 | |
| 420 | adm1272_i2c_set16(i2cdev, PMBUS_VOUT_UV_WARN_LIMIT, |
| 421 | adm1272_millivolts_to_direct(4600)); |
| 422 | i2c_value = adm1272_i2c_get16(i2cdev, PMBUS_STATUS_WORD); |
| 423 | i2c_byte = i2c_get8(i2cdev, PMBUS_STATUS_VOUT); |
| 424 | g_assert_true((i2c_value & PB_STATUS_VOUT) != 0); |
| 425 | g_assert_true((i2c_byte & PB_STATUS_VOUT_UV_WARN) != 0); |
| 426 | |
| 427 | } |
| 428 | |
| 429 | static void adm1272_register_nodes(void) |
| 430 | { |
| 431 | QOSGraphEdgeOptions opts = { |
| 432 | .extra_device_opts = "id=" TEST_ID ",address=0x10" |
| 433 | }; |
| 434 | add_qi2c_address(&opts, &(QI2CAddress) { TEST_ADDR }); |
| 435 | |
| 436 | qos_node_create_driver("adm1272", i2c_device_create); |
| 437 | qos_node_consumes("adm1272", "i2c-bus", &opts); |
| 438 | |
| 439 | qos_add_test("test_defaults", "adm1272", test_defaults, NULL); |
| 440 | qos_add_test("test_tx_rx", "adm1272", test_tx_rx, NULL); |
| 441 | qos_add_test("test_rw_regs", "adm1272", test_rw_regs, NULL); |
| 442 | qos_add_test("test_ro_regs", "adm1272", test_ro_regs, NULL); |
| 443 | qos_add_test("test_ov_faults", "adm1272", test_voltage_faults, NULL); |
| 444 | } |
| 445 | libqos_init(adm1272_register_nodes); |