aboutsummaryrefslogtreecommitdiff
path: root/tests/ds1338-test.c
diff options
context:
space:
mode:
authorJean-Christophe Dubois <jcd@tribudubois.net>2015-09-07 10:39:31 +0100
committerPeter Maydell <peter.maydell@linaro.org>2015-09-07 10:39:31 +0100
commit7f3986278b0bc214e83111ea55c8d12bac79c4fa (patch)
tree82b7f3deb47dd96d0abc54b7a77322326ac9b395 /tests/ds1338-test.c
parent65f57c43632b102f8b1ef20baf1fc218c6b8d9cd (diff)
i.MX: Add qtest support for I2C device emulator.
This is using a ds1338 RTC chip on the I2C bus. This RTC chip is not present on the real 3DS PDK board. Signed-off-by: Jean-Christophe Dubois <jcd@tribudubois.net> Acked-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Message-id: 05601683a2a95c881cbc9f22651a044d969bd0ae.1441057361.git.jcd@tribudubois.net Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'tests/ds1338-test.c')
-rw-r--r--tests/ds1338-test.c78
1 files changed, 78 insertions, 0 deletions
diff --git a/tests/ds1338-test.c b/tests/ds1338-test.c
new file mode 100644
index 0000000000..a7fb415353
--- /dev/null
+++ b/tests/ds1338-test.c
@@ -0,0 +1,78 @@
+/*
+ * 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 "libqtest.h"
+#include "libqos/i2c.h"
+
+#include <glib.h>
+
+#define IMX25_I2C_0_BASE 0x43F80000
+
+#define DS1338_ADDR 0x68
+
+static I2CAdapter *i2c;
+static uint8_t addr;
+
+static inline uint8_t bcd2bin(uint8_t x)
+{
+ return ((x) & 0x0f) + ((x) >> 4) * 10;
+}
+
+static void send_and_receive(void)
+{
+ uint8_t cmd[1];
+ uint8_t resp[7];
+ time_t now = time(NULL);
+ struct tm *tm_ptr = gmtime(&now);
+
+ /* reset the index in the RTC memory */
+ cmd[0] = 0;
+ i2c_send(i2c, addr, cmd, 1);
+
+ /* retrieve the date */
+ i2c_recv(i2c, addr, resp, 7);
+
+ /* 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);
+}
+
+int main(int argc, char **argv)
+{
+ QTestState *s = NULL;
+ int ret;
+
+ g_test_init(&argc, &argv, NULL);
+
+ s = qtest_start("-display none -machine imx25_pdk");
+ i2c = imx_i2c_create(IMX25_I2C_0_BASE);
+ addr = DS1338_ADDR;
+
+ qtest_add_func("/ds1338/tx-rx", send_and_receive);
+
+ ret = g_test_run();
+
+ if (s) {
+ qtest_quit(s);
+ }
+ g_free(i2c);
+
+ return ret;
+}