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Largely inspired by the TMP421 temperature sensor, here is a model for the EMC1413/EMC1414 temperature sensors. Specs can be found here : http://ww1.microchip.com/downloads/en/DeviceDoc/20005274A.pdf Signed-off-by: John Wang <wangzhiqiang.bj@bytedance.com> Reviewed-by: Cédric Le Goater <clg@kaod.org> Message-Id: <20201122105134.671-1-wangzhiqiang.bj@bytedance.com> Signed-off-by: Cédric Le Goater <clg@kaod.org>
82 lines
2.3 KiB
C
82 lines
2.3 KiB
C
/*
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* QTest testcase for the EMC141X temperature sensor
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or later.
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* See the COPYING file in the top-level directory.
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*/
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#include "qemu/osdep.h"
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#include "libqtest-single.h"
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#include "libqos/qgraph.h"
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#include "libqos/i2c.h"
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#include "qapi/qmp/qdict.h"
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#include "hw/misc/emc141x_regs.h"
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#define EMC1414_TEST_ID "emc1414-test"
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static int qmp_emc1414_get_temperature(const char *id)
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{
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QDict *response;
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int ret;
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response = qmp("{ 'execute': 'qom-get', 'arguments': { 'path': %s, "
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"'property': 'temperature0' } }", id);
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g_assert(qdict_haskey(response, "return"));
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ret = qdict_get_int(response, "return");
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qobject_unref(response);
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return ret;
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}
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static void qmp_emc1414_set_temperature(const char *id, int value)
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{
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QDict *response;
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response = qmp("{ 'execute': 'qom-set', 'arguments': { 'path': %s, "
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"'property': 'temperature0', 'value': %d } }", id, value);
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g_assert(qdict_haskey(response, "return"));
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qobject_unref(response);
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}
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static void send_and_receive(void *obj, void *data, QGuestAllocator *alloc)
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{
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uint16_t value;
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QI2CDevice *i2cdev = (QI2CDevice *)obj;
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value = qmp_emc1414_get_temperature(EMC1414_TEST_ID);
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g_assert_cmpuint(value, ==, 0);
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value = i2c_get8(i2cdev, EMC141X_TEMP_HIGH0);
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g_assert_cmphex(value, ==, 0);
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/* The default max value is 85C, 0x55=85 */
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value = i2c_get8(i2cdev, EMC141X_TEMP_MAX_HIGH0);
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g_assert_cmphex(value, ==, 0x55);
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value = i2c_get8(i2cdev, EMC141X_TEMP_MIN_HIGH0);
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g_assert_cmphex(value, ==, 0);
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/* 3000mc = 30C */
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qmp_emc1414_set_temperature(EMC1414_TEST_ID, 30000);
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value = qmp_emc1414_get_temperature(EMC1414_TEST_ID);
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g_assert_cmpuint(value, ==, 30000);
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value = i2c_get8(i2cdev, EMC141X_TEMP_HIGH0);
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g_assert_cmphex(value, ==, 30);
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}
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static void emc1414_register_nodes(void)
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{
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QOSGraphEdgeOptions opts = {
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.extra_device_opts = "id=" EMC1414_TEST_ID ",address=0x70"
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};
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add_qi2c_address(&opts, &(QI2CAddress) { 0x70 });
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qos_node_create_driver("emc1414", i2c_device_create);
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qos_node_consumes("emc1414", "i2c-bus", &opts);
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qos_add_test("tx-rx", "emc1414", send_and_receive, NULL);
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}
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libqos_init(emc1414_register_nodes);
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