xref: /openbmc/qemu/tests/qtest/stm32l4x5.h (revision f774a677507966222624a9b2859f06ede7608100)

/*
 * QTest testcase header for STM32L4X5 :
 * used for consolidating common objects in stm32l4x5_*-test.c
 *
 * Copyright (c) 2024 Arnaud Minier <arnaud.minier@telecom-paris.fr>
 * Copyright (c) 2024 Inès Varhol <ines.varhol@telecom-paris.fr>
 *
 * This work is licensed under the terms of the GNU GPL, version 2 or later.
 * See the COPYING file in the top-level directory.
 */

#include "libqtest.h"

/* copied from clock.h */
#define CLOCK_PERIOD_1SEC (1000000000llu << 32)
#define CLOCK_PERIOD_FROM_HZ(hz) (((hz) != 0) ? CLOCK_PERIOD_1SEC / (hz) : 0u)
/*
 * MSI (4 MHz) is used as system clock source after startup
 * from Reset.
 * AHB, APB1 and APB2 prescalers are set to 1 at reset.
 */
#define SYSCLK_PERIOD CLOCK_PERIOD_FROM_HZ(4000000)
#define RCC_AHB2ENR 0x4002104C
#define RCC_APB1ENR1 0x40021058
#define RCC_APB1ENR2 0x4002105C
#define RCC_APB2ENR 0x40021060


static inline uint64_t get_clock_period(QTestState *qts, const char *path)
{
    uint64_t clock_period = 0;
    QDict *r;

    r = qtest_qmp(qts, "{ 'execute': 'qom-get', 'arguments':"
        " { 'path': %s, 'property': 'qtest-clock-period'} }", path);
    g_assert_false(qdict_haskey(r, "error"));
    clock_period = qdict_get_int(r, "return");
    qobject_unref(r);
    return clock_period;
}