1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
|
/*
* 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 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;
}
|
