1 #include <stdio.h>
2 #include <stdbool.h>
3 #include "unity.h"
4
5 #include "esp_attr.h"
6
7 #include "hal/mpu_hal.h"
8
9 // TODO ESP32-C3 IDF-2375
10 // LL still not implemented
11
12 #if !TEMPORARY_DISABLED_FOR_TARGETS(ESP32C3)
13
14 volatile static int RTC_NOINIT_ATTR access = 0;
15
trigger_illegal_access(void)16 static void trigger_illegal_access(void)
17 {
18 access = 0;
19 intptr_t addr = 0x80000000; // MPU region 4
20 volatile int __attribute__((unused)) val = 0;
21
22 // Marked as an illegal access region at startup in ESP32, ESP32S2.
23 // Make accessible temporarily.
24 mpu_hal_set_region_access(4, MPU_REGION_RW);
25
26 val = *((int*) addr);
27 ++access;
28 TEST_ASSERT_EQUAL(1, access);
29 printf("Sucessfully accessed location %p\r\n", (void*)addr);
30
31 // Make access to region illegal again.
32 mpu_hal_set_region_access(4, MPU_REGION_ILLEGAL);
33 ++access;
34
35 // Since access to region is illegal, this should fail (causing a reset), and the increment
36 // to access count is not performed.
37 val = *((int*) addr);
38 ++access;
39 }
40
check_access(void)41 void check_access(void)
42 {
43 TEST_ASSERT_EQUAL(2, access);
44 }
45
46 TEST_CASE_MULTIPLE_STAGES("Can set illegal access regions", "[soc][mpu]",
47 trigger_illegal_access,
48 check_access);
49
50 #endif //!TEMPORARY_DISABLED_FOR_TARGETS(ESP32C3)
51
