tests/qtest/emc141x-test.c

   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
  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
  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
  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
  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);