1 files changed, 58 insertions, 0 deletions
diff --git a/tests/qtest/ds1338-test.c b/tests/qtest/ds1338-test.c
new file mode 100644
index 0000000000..f6ade9a050
--- /dev/null
+++ b/tests/qtest/ds1338-test.c
@@ -0,0 +1,58 @@
+/*
+ * QTest testcase for the DS1338 RTC
+ *
+ * Copyright (c) 2013 Jean-Christophe Dubois
+ *
+ *  This program is free software; you can redistribute it and/or modify it
+ *  under the terms of the GNU General Public License as published by the
+ *  Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful, but WITHOUT
+ *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ *  FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ *  for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "qemu/osdep.h"
+#include "libqtest.h"
+#include "libqos/i2c.h"
+
+#define DS1338_ADDR 0x68
+
+static inline uint8_t bcd2bin(uint8_t x)
+{
+    return ((x) & 0x0f) + ((x) >> 4) * 10;
+}
+
+static void send_and_receive(void *obj, void *data, QGuestAllocator *alloc)
+{
+    QI2CDevice *i2cdev = (QI2CDevice *)obj;
+
+    uint8_t resp[7];
+    time_t now = time(NULL);
+    struct tm *tm_ptr = gmtime(&now);
+
+    i2c_read_block(i2cdev, 0, resp, sizeof(resp));
+
+    /* check retrieved time againt local time */
+    g_assert_cmpuint(bcd2bin(resp[4]), == , tm_ptr->tm_mday);
+    g_assert_cmpuint(bcd2bin(resp[5]), == , 1 + tm_ptr->tm_mon);
+    g_assert_cmpuint(2000 + bcd2bin(resp[6]), == , 1900 + tm_ptr->tm_year);
+}
+
+static void ds1338_register_nodes(void)
+{
+    QOSGraphEdgeOptions opts = {
+        .extra_device_opts = "address=0x68"
+    };
+    add_qi2c_address(&opts, &(QI2CAddress) { DS1338_ADDR });
+
+    qos_node_create_driver("ds1338", i2c_device_create);
+    qos_node_consumes("ds1338", "i2c-bus", &opts);
+    qos_add_test("tx-rx", "ds1338", send_and_receive, NULL);
+}
+libqos_init(ds1338_register_nodes);