| /* |
| * Copyright (c) 2021 Carlo Caione <ccaione@baylibre.com> |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| #include <zephyr/kernel.h> |
| #include <zephyr/drivers/mbox.h> |
| #include <zephyr/sys/printk.h> |
| |
| #ifdef CONFIG_RX_ENABLED |
| static void callback(const struct device *dev, mbox_channel_id_t channel_id, |
| void *user_data, struct mbox_msg *data) |
| { |
| printk("Pong (on channel %d)\n", channel_id); |
| } |
| #endif /* CONFIG_RX_ENABLED */ |
| |
| int main(void) |
| { |
| int ret; |
| |
| printk("Hello from APP\n"); |
| |
| #ifdef CONFIG_RX_ENABLED |
| const struct mbox_dt_spec rx_channel = MBOX_DT_SPEC_GET(DT_PATH(mbox_consumer), rx); |
| |
| ret = mbox_register_callback_dt(&rx_channel, callback, NULL); |
| if (ret < 0) { |
| printk("Could not register callback (%d)\n", ret); |
| return 0; |
| } |
| |
| ret = mbox_set_enabled_dt(&rx_channel, true); |
| if (ret < 0) { |
| printk("Could not enable RX channel %d (%d)\n", rx_channel.channel_id, ret); |
| return 0; |
| } |
| #endif /* CONFIG_RX_ENABLED */ |
| |
| #ifdef CONFIG_TX_ENABLED |
| const struct mbox_dt_spec tx_channel = MBOX_DT_SPEC_GET(DT_PATH(mbox_consumer), tx); |
| |
| while (1) { |
| k_sleep(K_MSEC(2000)); |
| |
| printk("Ping (on channel %d)\n", tx_channel.channel_id); |
| |
| ret = mbox_send_dt(&tx_channel, NULL); |
| if (ret < 0) { |
| printk("Could not send (%d)\n", ret); |
| return 0; |
| } |
| } |
| #endif /* CONFIG_TX_ENABLED */ |
| return 0; |
| } |