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Jean-Christophe Dubois7f398622015-09-07 10:39:31 +01001/*
2 * QTest testcase for the DS1338 RTC
3 *
4 * Copyright (c) 2013 Jean-Christophe Dubois
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the
8 * Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * for more details.
15 *
16 * You should have received a copy of the GNU General Public License along
17 * with this program; if not, see <http://www.gnu.org/licenses/>.
18 */
19
Peter Maydell681c28a2016-02-08 18:08:51 +000020#include "qemu/osdep.h"
Jean-Christophe Dubois7f398622015-09-07 10:39:31 +010021#include "libqtest.h"
22#include "libqos/i2c.h"
23
Jean-Christophe Dubois7f398622015-09-07 10:39:31 +010024#define DS1338_ADDR 0x68
25
Jean-Christophe Dubois7f398622015-09-07 10:39:31 +010026static inline uint8_t bcd2bin(uint8_t x)
27{
28 return ((x) & 0x0f) + ((x) >> 4) * 10;
29}
30
Paolo Bonzini8130dbc2019-03-18 15:59:42 +010031static void send_and_receive(void *obj, void *data, QGuestAllocator *alloc)
Jean-Christophe Dubois7f398622015-09-07 10:39:31 +010032{
Paolo Bonzini8130dbc2019-03-18 15:59:42 +010033 QI2CDevice *i2cdev = (QI2CDevice *)obj;
Paolo Bonzini8130dbc2019-03-18 15:59:42 +010034
Jean-Christophe Dubois7f398622015-09-07 10:39:31 +010035 uint8_t resp[7];
36 time_t now = time(NULL);
37 struct tm *tm_ptr = gmtime(&now);
38
Paolo Bonzini06599472019-03-18 15:06:50 +010039 i2c_read_block(i2cdev, 0, resp, sizeof(resp));
Jean-Christophe Dubois7f398622015-09-07 10:39:31 +010040
41 /* check retrieved time againt local time */
42 g_assert_cmpuint(bcd2bin(resp[4]), == , tm_ptr->tm_mday);
43 g_assert_cmpuint(bcd2bin(resp[5]), == , 1 + tm_ptr->tm_mon);
44 g_assert_cmpuint(2000 + bcd2bin(resp[6]), == , 1900 + tm_ptr->tm_year);
45}
46
Paolo Bonzini8130dbc2019-03-18 15:59:42 +010047static void ds1338_register_nodes(void)
Jean-Christophe Dubois7f398622015-09-07 10:39:31 +010048{
Paolo Bonzini8130dbc2019-03-18 15:59:42 +010049 QOSGraphEdgeOptions opts = {
50 .extra_device_opts = "address=0x68"
51 };
Paolo Bonzini06599472019-03-18 15:06:50 +010052 add_qi2c_address(&opts, &(QI2CAddress) { DS1338_ADDR });
Jean-Christophe Dubois7f398622015-09-07 10:39:31 +010053
Paolo Bonzini8130dbc2019-03-18 15:59:42 +010054 qos_node_create_driver("ds1338", i2c_device_create);
55 qos_node_consumes("ds1338", "i2c-bus", &opts);
56 qos_add_test("tx-rx", "ds1338", send_and_receive, NULL);
Jean-Christophe Dubois7f398622015-09-07 10:39:31 +010057}
Paolo Bonzini8130dbc2019-03-18 15:59:42 +010058libqos_init(ds1338_register_nodes);