xref: /openbmc/qemu/tests/qtest/emc141x-test.c (revision 57e28d34)
1 /*
2  * QTest testcase for the EMC141X temperature sensor
3  *
4  * This work is licensed under the terms of the GNU GPL, version 2 or later.
5  * See the COPYING file in the top-level directory.
6  */
7 
8 #include "qemu/osdep.h"
9 
10 #include "libqtest-single.h"
11 #include "libqos/qgraph.h"
12 #include "libqos/i2c.h"
13 #include "qapi/qmp/qdict.h"
14 #include "hw/sensor/emc141x_regs.h"
15 
16 #define EMC1414_TEST_ID   "emc1414-test"
17 
qmp_emc1414_get_temperature(const char * id)18 static int qmp_emc1414_get_temperature(const char *id)
19 {
20     QDict *response;
21     int ret;
22 
23     response = qmp("{ 'execute': 'qom-get', 'arguments': { 'path': %s, "
24                    "'property': 'temperature0' } }", id);
25     g_assert(qdict_haskey(response, "return"));
26     ret = qdict_get_int(response, "return");
27     qobject_unref(response);
28     return ret;
29 }
30 
qmp_emc1414_set_temperature(const char * id,int value)31 static void qmp_emc1414_set_temperature(const char *id, int value)
32 {
33     QDict *response;
34 
35     response = qmp("{ 'execute': 'qom-set', 'arguments': { 'path': %s, "
36                    "'property': 'temperature0', 'value': %d } }", id, value);
37     g_assert(qdict_haskey(response, "return"));
38     qobject_unref(response);
39 }
40 
send_and_receive(void * obj,void * data,QGuestAllocator * alloc)41 static void send_and_receive(void *obj, void *data, QGuestAllocator *alloc)
42 {
43     uint16_t value;
44     QI2CDevice *i2cdev = (QI2CDevice *)obj;
45 
46     value = qmp_emc1414_get_temperature(EMC1414_TEST_ID);
47     g_assert_cmpuint(value, ==, 0);
48 
49     value = i2c_get8(i2cdev, EMC141X_TEMP_HIGH0);
50     g_assert_cmphex(value, ==, 0);
51 
52     /* The default max value is 85C, 0x55=85 */
53     value = i2c_get8(i2cdev, EMC141X_TEMP_MAX_HIGH0);
54     g_assert_cmphex(value, ==, 0x55);
55 
56     value = i2c_get8(i2cdev, EMC141X_TEMP_MIN_HIGH0);
57     g_assert_cmphex(value, ==, 0);
58 
59     /* 3000mc = 30C */
60     qmp_emc1414_set_temperature(EMC1414_TEST_ID, 30000);
61     value = qmp_emc1414_get_temperature(EMC1414_TEST_ID);
62     g_assert_cmpuint(value, ==, 30000);
63 
64     value = i2c_get8(i2cdev, EMC141X_TEMP_HIGH0);
65     g_assert_cmphex(value, ==, 30);
66 
67 }
68 
emc1414_register_nodes(void)69 static void emc1414_register_nodes(void)
70 {
71     QOSGraphEdgeOptions opts = {
72         .extra_device_opts = "id=" EMC1414_TEST_ID ",address=0x70"
73     };
74     add_qi2c_address(&opts, &(QI2CAddress) { 0x70 });
75 
76     qos_node_create_driver("emc1414", i2c_device_create);
77     qos_node_consumes("emc1414", "i2c-bus", &opts);
78 
79     qos_add_test("tx-rx", "emc1414", send_and_receive, NULL);
80 }
81 libqos_init(emc1414_register_nodes);
82