1 /*
2 * Copyright (c) 2021 Carlo Caione <ccaione@baylibre.com>
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 */
6
7 #include <stdio.h>
8 #include <stdlib.h>
9 #include <zephyr/kernel.h>
10 #include <zephyr/drivers/mbox.h>
11
12 #define TX_ID (0)
13 #define RX_ID (1)
14
callback(const struct device * dev,uint32_t channel,void * user_data,struct mbox_msg * data)15 static void callback(const struct device *dev, uint32_t channel,
16 void *user_data, struct mbox_msg *data)
17 {
18 printk("Pong (on channel %d)\n", channel);
19 }
20
main(void)21 int main(void)
22 {
23 struct mbox_channel tx_channel;
24 struct mbox_channel rx_channel;
25 const struct device *dev;
26
27 printk("Hello from NET\n");
28
29 dev = DEVICE_DT_GET(DT_NODELABEL(mbox));
30
31 mbox_init_channel(&tx_channel, dev, TX_ID);
32 mbox_init_channel(&rx_channel, dev, RX_ID);
33
34 if (mbox_register_callback(&rx_channel, callback, NULL)) {
35 printk("mbox_register_callback() error\n");
36 return 0;
37 }
38
39 if (mbox_set_enabled(&rx_channel, 1)) {
40 printk("mbox_set_enable() error\n");
41 return 0;
42 }
43
44 while (1) {
45
46 printk("Ping (on channel %d)\n", tx_channel.id);
47
48 if (mbox_send(&tx_channel, NULL) < 0) {
49 printk("mbox_send() error\n");
50 return 0;
51 }
52
53 k_sleep(K_MSEC(3000));
54 }
55 return 0;
56 }
57
