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/*
* Copyright (c) 2015 Intel Corporation
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <zephyr.h>
#include <stdio.h>
#include <zephyr/types.h>
#include <string.h>
#include <board.h>
#include <uart.h>
#include <misc/byteorder.h>
#define BUF_MAXSIZE 256
#define SLEEP_TIME 500
static struct device *uart1_dev;
static u8_t rx_buf[BUF_MAXSIZE];
static u8_t tx_buf[BUF_MAXSIZE];
static u8_t nci_reset[] = {0x20, 0x00, 0x01, 0x00};
static void msg_dump(const char *s, u8_t *data, unsigned len)
{
unsigned i;
printf("%s: ", s);
for (i = 0; i < len; i++) {
printf("%02x ", data[i]);
}
printf("(%u bytes)\n", len);
}
static void uart1_isr(struct device *x)
{
int len = uart_fifo_read(uart1_dev, rx_buf, BUF_MAXSIZE);
ARG_UNUSED(x);
msg_dump(__func__, rx_buf, len);
}
static void uart1_init(void)
{
uart1_dev = device_get_binding("UART_1");
uart_irq_callback_set(uart1_dev, uart1_isr);
uart_irq_rx_enable(uart1_dev);
printf("%s() done\n", __func__);
}
void main(void)
{
u32_t *size = (u32_t *)tx_buf;
printf("Sample app running on: %s\n", CONFIG_ARCH);
uart1_init();
/* 4 bytes for the payload's length */
UNALIGNED_PUT(sys_cpu_to_be32(sizeof(nci_reset)), size);
/* NFC Controller Interface reset cmd */
memcpy(tx_buf + sizeof(u32_t), nci_reset, sizeof(nci_reset));
/*
* Peer will receive: 0x00 0x00 0x00 0x04 0x20 0x00 0x01 0x00
* nci_reset size + nci_reset cmd
*/
uart_fifo_fill(uart1_dev, tx_buf, sizeof(u32_t) + sizeof(nci_reset));
while (1) {
k_sleep(SLEEP_TIME);
}
}
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