xref: /openbmc/qemu/tests/qtest/stm32l4x5.h (revision 2e1cacfb)
1 /*
2  * QTest testcase header for STM32L4X5 :
3  * used for consolidating common objects in stm32l4x5_*-test.c
4  *
5  * Copyright (c) 2024 Arnaud Minier <arnaud.minier@telecom-paris.fr>
6  * Copyright (c) 2024 Inès Varhol <ines.varhol@telecom-paris.fr>
7  *
8  * This work is licensed under the terms of the GNU GPL, version 2 or later.
9  * See the COPYING file in the top-level directory.
10  */
11 
12 #include "libqtest.h"
13 
14 /* copied from clock.h */
15 #define CLOCK_PERIOD_1SEC (1000000000llu << 32)
16 #define CLOCK_PERIOD_FROM_HZ(hz) (((hz) != 0) ? CLOCK_PERIOD_1SEC / (hz) : 0u)
17 /*
18  * MSI (4 MHz) is used as system clock source after startup
19  * from Reset.
20  * AHB, APB1 and APB2 prescalers are set to 1 at reset.
21  */
22 #define SYSCLK_PERIOD CLOCK_PERIOD_FROM_HZ(4000000)
23 #define RCC_AHB2ENR 0x4002104C
24 #define RCC_APB1ENR1 0x40021058
25 #define RCC_APB1ENR2 0x4002105C
26 #define RCC_APB2ENR 0x40021060
27 
28 
29 static inline uint64_t get_clock_period(QTestState *qts, const char *path)
30 {
31     uint64_t clock_period = 0;
32     QDict *r;
33 
34     r = qtest_qmp(qts, "{ 'execute': 'qom-get', 'arguments':"
35         " { 'path': %s, 'property': 'qtest-clock-period'} }", path);
36     g_assert_false(qdict_haskey(r, "error"));
37     clock_period = qdict_get_int(r, "return");
38     qobject_unref(r);
39     return clock_period;
40 }
41 
42 
43