1 /*
2 * Copyright (c) 2020 Intel Corporation
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 */
6
7 #include <zephyr.h>
8 #include <device.h>
9 #include <devicetree.h>
10
11 #include <drivers/edac.h>
12
13 #include <logging/log.h>
14 LOG_MODULE_REGISTER(main, CONFIG_LOG_DEFAULT_LEVEL);
15
16 #define STACKSIZE 1024
17 #define PRIORITY 7
18
19 static atomic_t handled;
20
21 /**
22 * Callback called from ISR. Runs in supervisor mode
23 */
notification_callback(const struct device * dev,void * data)24 static void notification_callback(const struct device *dev, void *data)
25 {
26 /* Special care need to be taken for NMI callback:
27 * delayed_work, mutex and semaphores are not working stable
28 * here, using integer increment for now
29 */
30 atomic_set(&handled, true);
31 }
32
33 #define DEVICE_NAME DT_LABEL(DT_NODELABEL(ibecc))
34
main(void)35 void main(void)
36 {
37 const struct device *dev;
38
39 dev = device_get_binding(DEVICE_NAME);
40 if (!dev) {
41 LOG_ERR("Cannot open EDAC device: %s", DEVICE_NAME);
42 return;
43 }
44
45 if (edac_notify_callback_set(dev, notification_callback)) {
46 LOG_ERR("Cannot set notification callback");
47 return;
48 }
49
50 LOG_INF("EDAC shell application initialized");
51 }
52
thread_function(void)53 void thread_function(void)
54 {
55 LOG_DBG("Thread started");
56
57 while (true) {
58 if (atomic_cas(&handled, true, false)) {
59 printk("Got notification about IBECC event\n");
60 k_sleep(K_MSEC(300));
61 }
62 }
63 }
64
65 K_THREAD_DEFINE(thread_id, STACKSIZE, thread_function, NULL, NULL, NULL,
66 PRIORITY, 0, 0);
67
