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/*
* 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 against 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);
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