1 files changed, 120 insertions, 0 deletions
diff --git a/tests/qtest/tmp105-test.c b/tests/qtest/tmp105-test.c
new file mode 100644
index 0000000000..f930a96b83
--- /dev/null
+++ b/tests/qtest/tmp105-test.c
@@ -0,0 +1,120 @@
+/*
+ * QTest testcase for the TMP105 temperature sensor
+ *
+ * Copyright (c) 2012 Andreas Färber
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+
+#include "qemu/osdep.h"
+
+#include "libqtest-single.h"
+#include "libqos/qgraph.h"
+#include "libqos/i2c.h"
+#include "qapi/qmp/qdict.h"
+#include "hw/misc/tmp105_regs.h"
+
+#define TMP105_TEST_ID   "tmp105-test"
+#define TMP105_TEST_ADDR 0x49
+
+static int qmp_tmp105_get_temperature(const char *id)
+{
+    QDict *response;
+    int ret;
+
+    response = qmp("{ 'execute': 'qom-get', 'arguments': { 'path': %s, "
+                   "'property': 'temperature' } }", id);
+    g_assert(qdict_haskey(response, "return"));
+    ret = qdict_get_int(response, "return");
+    qobject_unref(response);
+    return ret;
+}
+
+static void qmp_tmp105_set_temperature(const char *id, int value)
+{
+    QDict *response;
+
+    response = qmp("{ 'execute': 'qom-set', 'arguments': { 'path': %s, "
+                   "'property': 'temperature', 'value': %d } }", id, value);
+    g_assert(qdict_haskey(response, "return"));
+    qobject_unref(response);
+}
+
+#define TMP105_PRECISION (1000/16)
+static void send_and_receive(void *obj, void *data, QGuestAllocator *alloc)
+{
+    uint16_t value;
+    QI2CDevice *i2cdev = (QI2CDevice *)obj;
+
+    value = qmp_tmp105_get_temperature(TMP105_TEST_ID);
+    g_assert_cmpuint(value, ==, 0);
+
+    value = i2c_get16(i2cdev, TMP105_REG_TEMPERATURE);
+    g_assert_cmphex(value, ==, 0);
+
+    qmp_tmp105_set_temperature(TMP105_TEST_ID, 20000);
+    value = qmp_tmp105_get_temperature(TMP105_TEST_ID);
+    g_assert_cmpuint(value, ==, 20000);
+
+    value = i2c_get16(i2cdev, TMP105_REG_TEMPERATURE);
+    g_assert_cmphex(value, ==, 0x1400);
+
+    qmp_tmp105_set_temperature(TMP105_TEST_ID, 20938); /* 20 + 15/16 */
+    value = qmp_tmp105_get_temperature(TMP105_TEST_ID);
+    g_assert_cmpuint(value, >=, 20938 - TMP105_PRECISION/2);
+    g_assert_cmpuint(value, <, 20938 + TMP105_PRECISION/2);
+
+    /* Set config */
+    i2c_set8(i2cdev, TMP105_REG_CONFIG, 0x60);
+    value = i2c_get8(i2cdev, TMP105_REG_CONFIG);
+    g_assert_cmphex(value, ==, 0x60);
+
+    value = i2c_get16(i2cdev, TMP105_REG_TEMPERATURE);
+    g_assert_cmphex(value, ==, 0x14f0);
+
+    /* Set precision to 9, 10, 11 bits.  */
+    i2c_set8(i2cdev, TMP105_REG_CONFIG, 0x00);
+    g_assert_cmphex(i2c_get8(i2cdev, TMP105_REG_CONFIG), ==, 0x00);
+    value = i2c_get16(i2cdev, TMP105_REG_TEMPERATURE);
+    g_assert_cmphex(value, ==, 0x1480);
+
+    i2c_set8(i2cdev, TMP105_REG_CONFIG, 0x20);
+    g_assert_cmphex(i2c_get8(i2cdev, TMP105_REG_CONFIG), ==, 0x20);
+    value = i2c_get16(i2cdev, TMP105_REG_TEMPERATURE);
+    g_assert_cmphex(value, ==, 0x14c0);
+
+    i2c_set8(i2cdev, TMP105_REG_CONFIG, 0x40);
+    g_assert_cmphex(i2c_get8(i2cdev, TMP105_REG_CONFIG), ==, 0x40);
+    value = i2c_get16(i2cdev, TMP105_REG_TEMPERATURE);
+    g_assert_cmphex(value, ==, 0x14e0);
+
+    /* stored precision remains the same */
+    value = qmp_tmp105_get_temperature(TMP105_TEST_ID);
+    g_assert_cmpuint(value, >=, 20938 - TMP105_PRECISION/2);
+    g_assert_cmpuint(value, <, 20938 + TMP105_PRECISION/2);
+
+    i2c_set8(i2cdev, TMP105_REG_CONFIG, 0x60);
+    g_assert_cmphex(i2c_get8(i2cdev, TMP105_REG_CONFIG), ==, 0x60);
+    value = i2c_get16(i2cdev, TMP105_REG_TEMPERATURE);
+    g_assert_cmphex(value, ==, 0x14f0);
+
+    i2c_set16(i2cdev, TMP105_REG_T_LOW, 0x1234);
+    g_assert_cmphex(i2c_get16(i2cdev, TMP105_REG_T_LOW), ==, 0x1234);
+    i2c_set16(i2cdev, TMP105_REG_T_HIGH, 0x4231);
+    g_assert_cmphex(i2c_get16(i2cdev, TMP105_REG_T_HIGH), ==, 0x4231);
+}
+
+static void tmp105_register_nodes(void)
+{
+    QOSGraphEdgeOptions opts = {
+        .extra_device_opts = "id=" TMP105_TEST_ID ",address=0x49"
+    };
+    add_qi2c_address(&opts, &(QI2CAddress) { 0x49 });
+
+    qos_node_create_driver("tmp105", i2c_device_create);
+    qos_node_consumes("tmp105", "i2c-bus", &opts);
+
+    qos_add_test("tx-rx", "tmp105", send_and_receive, NULL);
+}
+libqos_init(tmp105_register_nodes);