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emc141x-test.c (2332B)

      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);