qemu/tests/qtest/rs5c372-test.c
Bernhard Beschow 822405b1fe hw/rtc: Add Ricoh RS5C372 RTC emulation
The implementation just allows Linux to determine date and time.

Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Acked-by: Fabiano Rosas <farosas@suse.de>
Message-ID: <20250223114708.1780-19-shentey@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2025-03-11 20:01:26 +01:00

43 lines
1.1 KiB
C

/*
* QTest testcase for the RS5C372 RTC
*
* Copyright (c) 2025 Bernhard Beschow <shentey@gmail.com>
*
* Based on ds1338-test.c
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "qemu/osdep.h"
#include "qemu/bcd.h"
#include "libqos/i2c.h"
#define RS5C372_ADDR 0x32
static void rs5c372_read_date(void *obj, void *data, QGuestAllocator *alloc)
{
QI2CDevice *i2cdev = obj;
uint8_t resp[0x10];
time_t now = time(NULL);
struct tm *utc = gmtime(&now);
i2c_read_block(i2cdev, 0, resp, sizeof(resp));
/* check retrieved time against local time */
g_assert_cmpuint(from_bcd(resp[5]), == , utc->tm_mday);
g_assert_cmpuint(from_bcd(resp[6]), == , 1 + utc->tm_mon);
g_assert_cmpuint(2000 + from_bcd(resp[7]), == , 1900 + utc->tm_year);
}
static void rs5c372_register_nodes(void)
{
QOSGraphEdgeOptions opts = { };
add_qi2c_address(&opts, &(QI2CAddress) { RS5C372_ADDR });
qos_node_create_driver("rs5c372", i2c_device_create);
qos_node_consumes("rs5c372", "i2c-bus", &opts);
qos_add_test("read_date", "rs5c372", rs5c372_read_date, NULL);
}
libqos_init(rs5c372_register_nodes);