1 /*
2 * QTest testcase for the RS5C372 RTC
3 *
4 * Copyright (c) 2025 Bernhard Beschow <shentey@gmail.com>
5 *
6 * Based on ds1338-test.c
7 *
8 * SPDX-License-Identifier: GPL-2.0-or-later
9 */
10
11 #include "qemu/osdep.h"
12 #include "qemu/bcd.h"
13 #include "libqos/i2c.h"
14
15 #define RS5C372_ADDR 0x32
16
rs5c372_read_date(void * obj,void * data,QGuestAllocator * alloc)17 static void rs5c372_read_date(void *obj, void *data, QGuestAllocator *alloc)
18 {
19 QI2CDevice *i2cdev = obj;
20
21 uint8_t resp[0x10];
22 time_t now = time(NULL);
23 struct tm *utc = gmtime(&now);
24
25 i2c_read_block(i2cdev, 0, resp, sizeof(resp));
26
27 /* check retrieved time against local time */
28 g_assert_cmpuint(from_bcd(resp[5]), == , utc->tm_mday);
29 g_assert_cmpuint(from_bcd(resp[6]), == , 1 + utc->tm_mon);
30 g_assert_cmpuint(2000 + from_bcd(resp[7]), == , 1900 + utc->tm_year);
31 }
32
rs5c372_register_nodes(void)33 static void rs5c372_register_nodes(void)
34 {
35 QOSGraphEdgeOptions opts = { };
36 add_qi2c_address(&opts, &(QI2CAddress) { RS5C372_ADDR });
37
38 qos_node_create_driver("rs5c372", i2c_device_create);
39 qos_node_consumes("rs5c372", "i2c-bus", &opts);
40 qos_add_test("read_date", "rs5c372", rs5c372_read_date, NULL);
41 }
42
43 libqos_init(rs5c372_register_nodes);
44