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/misc/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); 82