From: Hao Wu <wuhao...@google.com> Reviewed-by: Doug Evans <d...@google.com> Signed-off-by: Hao Wu <wuhao...@google.com> Signed-off-by: Patrick Venture <vent...@google.com> Acked-by: Thomas Huth <th...@redhat.com> --- tests/qtest/tmp-sbtsi-test.c | 161 +++++++++++++++++++++++++++++++++++ tests/qtest/meson.build | 1 + 2 files changed, 162 insertions(+) create mode 100644 tests/qtest/tmp-sbtsi-test.c
diff --git a/tests/qtest/tmp-sbtsi-test.c b/tests/qtest/tmp-sbtsi-test.c new file mode 100644 index 0000000000..ff1e193739 --- /dev/null +++ b/tests/qtest/tmp-sbtsi-test.c @@ -0,0 +1,161 @@ +/* + * QTests for the SBTSI temperature sensor + * + * Copyright 2020 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 "libqtest-single.h" +#include "libqos/qgraph.h" +#include "libqos/i2c.h" +#include "qapi/qmp/qdict.h" +#include "qemu/bitops.h" +#include "hw/sensor/sbtsi.h" + +#define TEST_ID "sbtsi-test" +#define TEST_ADDR (0x4c) + +/* The temperature stored are in units of 0.125 degrees. */ +#define LIMIT_LOW_IN_MILLIDEGREE (10500) +#define LIMIT_HIGH_IN_MILLIDEGREE (55125) + +static uint32_t qmp_sbtsi_get_temperature(const char *id) +{ + QDict *response; + int ret; + + response = qmp("{ 'execute': 'qom-get', 'arguments': { 'path': %s, " + "'property': 'temperature' } }", id); + g_assert(qdict_haskey(response, "return")); + ret = (uint32_t)qdict_get_int(response, "return"); + qobject_unref(response); + return ret; +} + +static void qmp_sbtsi_set_temperature(const char *id, uint32_t value) +{ + QDict *response; + + response = qmp("{ 'execute': 'qom-set', 'arguments': { 'path': %s, " + "'property': 'temperature', 'value': %d } }", id, value); + g_assert(qdict_haskey(response, "return")); + qobject_unref(response); +} + +/* + * Compute the temperature using the integer and decimal part and return + * millidegrees. The decimal part are only the top 3 bits so we shift it by + * 5 here. + */ +static uint32_t regs_to_temp(uint8_t integer, uint8_t decimal) +{ + return ((integer << 3) + (decimal >> 5)) * SBTSI_TEMP_UNIT_IN_MILLIDEGREE; +} + +/* + * Compute the integer and decimal parts of the temperature in millidegrees. + * H/W store the decimal in the top 3 bits so we shift it by 5. + */ +static void temp_to_regs(uint32_t temp, uint8_t *integer, uint8_t *decimal) +{ + temp /= SBTSI_TEMP_UNIT_IN_MILLIDEGREE; + *integer = temp >> 3; + *decimal = (temp & 0x7) << 5; +} + +static void tx_rx(void *obj, void *data, QGuestAllocator *alloc) +{ + uint16_t value; + uint8_t integer, decimal; + QI2CDevice *i2cdev = (QI2CDevice *)obj; + + /* Test default values */ + value = qmp_sbtsi_get_temperature(TEST_ID); + g_assert_cmpuint(value, ==, 0); + + integer = i2c_get8(i2cdev, SBTSI_REG_TEMP_INT); + decimal = i2c_get8(i2cdev, SBTSI_REG_TEMP_DEC); + g_assert_cmpuint(regs_to_temp(integer, decimal), ==, 0); + + /* Test setting temperature */ + qmp_sbtsi_set_temperature(TEST_ID, 20000); + value = qmp_sbtsi_get_temperature(TEST_ID); + g_assert_cmpuint(value, ==, 20000); + + integer = i2c_get8(i2cdev, SBTSI_REG_TEMP_INT); + decimal = i2c_get8(i2cdev, SBTSI_REG_TEMP_DEC); + g_assert_cmpuint(regs_to_temp(integer, decimal), ==, 20000); + + /* Set alert mask in config */ + i2c_set8(i2cdev, SBTSI_REG_CONFIG_WR, SBTSI_CONFIG_ALERT_MASK); + value = i2c_get8(i2cdev, SBTSI_REG_CONFIG); + g_assert_cmphex(value, ==, SBTSI_CONFIG_ALERT_MASK); + /* Enable alarm_en */ + i2c_set8(i2cdev, SBTSI_REG_ALERT_CONFIG, SBTSI_ALARM_EN); + value = i2c_get8(i2cdev, SBTSI_REG_ALERT_CONFIG); + g_assert_cmphex(value, ==, SBTSI_ALARM_EN); + + /* Test setting limits */ + /* Limit low = 10.500 */ + temp_to_regs(LIMIT_LOW_IN_MILLIDEGREE, &integer, &decimal); + i2c_set8(i2cdev, SBTSI_REG_TEMP_LOW_INT, integer); + i2c_set8(i2cdev, SBTSI_REG_TEMP_LOW_DEC, decimal); + integer = i2c_get8(i2cdev, SBTSI_REG_TEMP_LOW_INT); + decimal = i2c_get8(i2cdev, SBTSI_REG_TEMP_LOW_DEC); + g_assert_cmpuint( + regs_to_temp(integer, decimal), ==, LIMIT_LOW_IN_MILLIDEGREE); + /* Limit high = 55.125 */ + temp_to_regs(LIMIT_HIGH_IN_MILLIDEGREE, &integer, &decimal); + i2c_set8(i2cdev, SBTSI_REG_TEMP_HIGH_INT, integer); + i2c_set8(i2cdev, SBTSI_REG_TEMP_HIGH_DEC, decimal); + integer = i2c_get8(i2cdev, SBTSI_REG_TEMP_HIGH_INT); + decimal = i2c_get8(i2cdev, SBTSI_REG_TEMP_HIGH_DEC); + g_assert_cmpuint( + regs_to_temp(integer, decimal), ==, LIMIT_HIGH_IN_MILLIDEGREE); + /* No alert is generated. */ + value = i2c_get8(i2cdev, SBTSI_REG_STATUS); + g_assert_cmphex(value, ==, 0); + + /* Test alert for low temperature */ + qmp_sbtsi_set_temperature(TEST_ID, LIMIT_LOW_IN_MILLIDEGREE); + value = i2c_get8(i2cdev, SBTSI_REG_STATUS); + g_assert_cmphex(value, ==, SBTSI_STATUS_LOW_ALERT); + + /* Test alert for high temperature */ + qmp_sbtsi_set_temperature(TEST_ID, LIMIT_HIGH_IN_MILLIDEGREE); + value = i2c_get8(i2cdev, SBTSI_REG_STATUS); + g_assert_cmphex(value, ==, SBTSI_STATUS_HIGH_ALERT); + + /* Disable alarm_en */ + i2c_set8(i2cdev, SBTSI_REG_ALERT_CONFIG, 0); + value = i2c_get8(i2cdev, SBTSI_REG_ALERT_CONFIG); + g_assert_cmphex(value, ==, 0); + /* No alert when alarm_en is false. */ + value = i2c_get8(i2cdev, SBTSI_REG_STATUS); + g_assert_cmphex(value, ==, 0); +} + +static void sbtsi_register_nodes(void) +{ + QOSGraphEdgeOptions opts = { + .extra_device_opts = "id=" TEST_ID ",address=0x4c" + }; + add_qi2c_address(&opts, &(QI2CAddress) { TEST_ADDR }); + + qos_node_create_driver("sbtsi", i2c_device_create); + qos_node_consumes("sbtsi", "i2c-bus", &opts); + + qos_add_test("tx-rx", "sbtsi", tx_rx, NULL); +} +libqos_init(sbtsi_register_nodes); diff --git a/tests/qtest/meson.build b/tests/qtest/meson.build index 37e1eaa449..21e6152949 100644 --- a/tests/qtest/meson.build +++ b/tests/qtest/meson.build @@ -254,6 +254,7 @@ qos_test_ss.add( 'spapr-phb-test.c', 'tmp105-test.c', 'emc141x-test.c', + 'tmp-sbtsi-test.c', 'usb-hcd-ohci-test.c', 'virtio-test.c', 'virtio-blk-test.c', -- 2.34.1.575.g55b058a8bb-goog