static int h4_open(void)
{
BT_DBG("");
uart_irq_rx_disable(h4_dev);
uart_irq_tx_disable(h4_dev);
#if defined(CONFIG_BT_NRF51_PM)
if (nrf51_init(h4_dev) < 0) {
return -EIO;
}
#else
h4_discard(h4_dev, 32);
#endif
uart_irq_callback_set(h4_dev, bt_uart_isr);
k_thread_create(&rx_thread_data, rx_thread_stack,
K_THREAD_STACK_SIZEOF(rx_thread_stack),
rx_thread, NULL, NULL, NULL,
K_PRIO_COOP(CONFIG_BT_RX_PRIO),
0, K_NO_WAIT);
return 0;
}
static void read_char_irq(struct device *dev, char *data)
{
uart_irq_rx_enable(dev);
data_arrived = false;
while (data_arrived == false)
;
*data = new_data;
uart_irq_rx_disable(dev);
}
static int read_uart(struct device *uart, uint8_t *buf, unsigned int size)
{
int rx;
rx = uart_fifo_read(uart, buf, size);
if (rx < 0) {
/* Overrun issue. Stop the UART */
uart_irq_rx_disable(uart);
return -EIO;
}
return rx;
}
static void rx_thread(void *p1, void *p2, void *p3)
{
struct net_buf *buf;
ARG_UNUSED(p1);
ARG_UNUSED(p2);
ARG_UNUSED(p3);
BT_DBG("started");
while (1) {
BT_DBG("rx.buf %p", rx.buf);
/* We can only do the allocation if we know the initial
* header, since Command Complete/Status events must use the
* original command buffer (if available).
*/
if (rx.have_hdr && !rx.buf) {
rx.buf = get_rx(K_FOREVER);
BT_DBG("Got rx.buf %p", rx.buf);
if (rx.remaining > net_buf_tailroom(rx.buf)) {
BT_ERR("Not enough space in buffer");
rx.discard = rx.remaining;
reset_rx();
} else {
copy_hdr(rx.buf);
}
}
/* Let the ISR continue receiving new packets */
uart_irq_rx_enable(h4_dev);
buf = net_buf_get(&rx.fifo, K_FOREVER);
do {
uart_irq_rx_enable(h4_dev);
BT_DBG("Calling bt_recv(%p)", buf);
bt_recv(buf);
/* Give other threads a chance to run if the ISR
* is receiving data so fast that rx.fifo never
* or very rarely goes empty.
*/
k_yield();
uart_irq_rx_disable(h4_dev);
buf = net_buf_get(&rx.fifo, K_NO_WAIT);
} while (buf);
}
}
void UARTClass::end( void )
{
int ret=0;
uint8_t uc_data;
// Wait for any outstanding data to be sent
flush();
uart_irq_rx_disable(CONFIG_UART_CONSOLE_INDEX);
uart_irq_tx_disable(CONFIG_UART_CONSOLE_INDEX);
while ( ret != -1 ) {
ret = uart_poll_in(CONFIG_UART_CONSOLE_INDEX, &uc_data);
}
opened = false;
// Clear any received data
_rx_buffer->_iHead = _rx_buffer->_iTail;
}
static void console_input_init(void)
{
uint8_t c;
uart_irq_rx_disable(uart_console_dev);
uart_irq_tx_disable(uart_console_dev);
uart_irq_callback_set(uart_console_dev, uart_console_isr);
/* Drain the fifo */
while (uart_irq_rx_ready(uart_console_dev)) {
uart_fifo_read(uart_console_dev, &c, 1);
}
uart_irq_rx_enable(uart_console_dev);
}
static void uart_pipe_setup(struct device *uart)
{
uint8_t c;
uart_irq_rx_disable(uart);
uart_irq_tx_disable(uart);
/* Drain the fifo */
while (uart_fifo_read(uart, &c, 1)) {
continue;
}
uart_irq_callback_set(uart, uart_pipe_isr);
uart_irq_rx_enable(uart);
}
static int h5_open(void)
{
BT_DBG("");
uart_irq_rx_disable(h5_dev);
uart_irq_tx_disable(h5_dev);
bt_uart_drain(h5_dev);
uart_irq_callback_set(h5_dev, bt_uart_isr);
h5_init();
uart_irq_rx_enable(h5_dev);
return 0;
}
static void uart_simple_setup(int uart, struct uart_init_info *info)
{
uart_init(uart, info);
uart_irq_rx_disable(uart);
uart_irq_tx_disable(uart);
IRQ_CONFIG(uart_simple, uart_irq_get(uart));
irq_enable(uart_irq_get(uart));
/* Drain the fifo */
while (uart_irq_rx_ready(uart)) {
unsigned char c;
uart_fifo_read(uart, &c, 1);
}
uart_irq_rx_enable(uart);
}
void UARTClass::end( void )
{
int ret=0;
uint8_t uc_data;
// Wait for any outstanding data to be sent
flush();
uart_irq_rx_disable(CONFIG_UART_CONSOLE_INDEX);
uart_irq_tx_disable(CONFIG_UART_CONSOLE_INDEX);
while ( ret != -1 ) {
ret = uart_poll_in(CONFIG_UART_CONSOLE_INDEX, &uc_data);
}
opened = false;
// Clear any received data
_rx_buffer->_iHead = _rx_buffer->_iTail;
SET_PIN_MODE(17, GPIO_MUX_MODE); // Rdx SOC PIN (Arduino header pin 0)
SET_PIN_MODE(16, GPIO_MUX_MODE); // Txd SOC PIN (Arduino header pin 1)
}
static int bt_monitor_init(struct device *d)
{
ARG_UNUSED(d);
monitor_dev = device_get_binding(CONFIG_BLUETOOTH_MONITOR_ON_DEV_NAME);
#if defined(CONFIG_UART_INTERRUPT_DRIVEN)
uart_irq_rx_disable(monitor_dev);
uart_irq_tx_disable(monitor_dev);
#endif
#if !defined(CONFIG_UART_CONSOLE)
__printk_hook_install(monitor_console_out);
__stdout_hook_install(monitor_console_out);
#endif
return 0;
}
static void bt_uart_setup(int uart, struct uart_init_info *info)
{
BT_DBG("\n");
uart_init(uart, info);
uart_irq_rx_disable(uart);
uart_irq_tx_disable(uart);
IRQ_CONFIG(bluetooth, uart_irq_get(uart));
irq_enable(uart_irq_get(uart));
/* Drain the fifo */
while (uart_irq_rx_ready(uart)) {
unsigned char c;
uart_fifo_read(uart, &c, 1);
}
uart_irq_rx_enable(uart);
}
static int h4_open(void)
{
BT_DBG("");
uart_irq_rx_disable(h4_dev);
uart_irq_tx_disable(h4_dev);
/* Drain the fifo */
while (uart_irq_rx_ready(h4_dev)) {
unsigned char c;
uart_fifo_read(h4_dev, &c, 1);
}
uart_irq_callback_set(h4_dev, bt_uart_isr);
uart_irq_rx_enable(h4_dev);
return 0;
}
static int h4_open(void)
{
BT_DBG("");
uart_irq_rx_disable(h4_dev);
uart_irq_tx_disable(h4_dev);
#if defined(CONFIG_BLUETOOTH_NRF51_PM)
if (nrf51_init(h4_dev) < 0) {
return -EIO;
}
#else
bt_uart_drain(h4_dev);
#endif
uart_irq_callback_set(h4_dev, bt_uart_isr);
uart_irq_rx_enable(h4_dev);
return 0;
}
static int h4_open(void)
{
BT_DBG("");
uart_irq_rx_disable(h4_dev);
uart_irq_tx_disable(h4_dev);
IRQ_CONNECT(CONFIG_BLUETOOTH_UART_IRQ, CONFIG_BLUETOOTH_UART_IRQ_PRI,
bt_uart_isr, 0, UART_IRQ_FLAGS);
irq_enable(CONFIG_BLUETOOTH_UART_IRQ);
/* Drain the fifo */
while (uart_irq_rx_ready(h4_dev)) {
unsigned char c;
uart_fifo_read(h4_dev, &c, 1);
}
uart_irq_rx_enable(h4_dev);
return 0;
}
void UARTClass::init(const uint32_t dwBaudRate, const uint8_t modeReg)
{
uint8_t c;
// Make sure both ring buffers are initialized back to empty.
_rx_buffer->_iHead = _rx_buffer->_iTail = 0;
_tx_buffer->_iHead = _tx_buffer->_iTail = 0;
SET_PIN_MODE(17, UART_MUX_MODE); // Rdx SOC PIN (Arduino header pin 0)
SET_PIN_MODE(16, UART_MUX_MODE); // Txd SOC PIN (Arduino header pin 1)
info->options = 0;
info->sys_clk_freq = SYSCLK_DEFAULT_IOSC_HZ;
info->baud_rate = dwBaudRate;
info->regs = CONFIG_UART_CONSOLE_REGS;
info->irq = CONFIG_UART_CONSOLE_IRQ;
info->int_pri = CONFIG_UART_CONSOLE_INT_PRI;
info->async_format = modeReg;
uart_init(CONFIG_UART_CONSOLE_INDEX, info);
uart_irq_rx_disable(CONFIG_UART_CONSOLE_INDEX);
uart_irq_tx_disable(CONFIG_UART_CONSOLE_INDEX);
uart_int_connect(CONFIG_UART_CONSOLE_INDEX, /* UART to which to connect */
UART_Handler, /* interrupt handler */
NULL, /* argument to pass to handler */
NULL /* ptr to interrupt stub code */
);
while (uart_irq_rx_ready(CONFIG_UART_CONSOLE_INDEX))
uart_fifo_read(CONFIG_UART_CONSOLE_INDEX, &c, 1);
uart_irq_rx_enable(CONFIG_UART_CONSOLE_INDEX);
}
int main(int argc, char const *argv[])
{
int ret;
printf("start buffers: %d, size=%d total size=%d\n",
sizeof(buf_pool)/sizeof(uart_buf_t), sizeof(uart_buf_t), sizeof(buf_pool));
uart_dev = device_get_binding(CONFIG_CDC_ACM_PORT_NAME);
if (uart_dev == NULL) {
printf("%s: error\n", __FUNCTION__);
return 0;
}
ret = uart_line_ctrl_set(uart_dev, LINE_CTRL_BAUD_RATE, 115200);
if (ret)
printf("Baudrate set failed %d\n", ret);
k_sleep(1000);
uart_irq_rx_disable(uart_dev);
uart_irq_tx_disable(uart_dev);
/* drain the fifo */
uint8_t c;
while(uart_fifo_read(uart_dev, &c, 1)) {
continue;
}
uart_irq_callback_set(uart_dev, interrupt_handler);
uart_irq_rx_enable(uart_dev);
read_and_echo_data(uart_dev);
return 0;
}
static inline void read_payload(void)
{
struct net_buf *buf;
bool prio;
int read;
if (!rx.buf) {
rx.buf = get_rx(K_NO_WAIT);
if (!rx.buf) {
if (rx.discardable) {
BT_WARN("Discarding event 0x%02x", rx.evt.evt);
rx.discard = rx.remaining;
reset_rx();
return;
}
BT_WARN("Failed to allocate, deferring to rx_thread");
uart_irq_rx_disable(h4_dev);
return;
}
BT_DBG("Allocated rx.buf %p", rx.buf);
if (rx.remaining > net_buf_tailroom(rx.buf)) {
BT_ERR("Not enough space in buffer");
rx.discard = rx.remaining;
reset_rx();
return;
}
copy_hdr(rx.buf);
}
read = uart_fifo_read(h4_dev, net_buf_tail(rx.buf), rx.remaining);
net_buf_add(rx.buf, read);
rx.remaining -= read;
BT_DBG("got %d bytes, remaining %u", read, rx.remaining);
BT_DBG("Payload (len %u): %s", rx.buf->len,
bt_hex(rx.buf->data, rx.buf->len));
if (rx.remaining) {
return;
}
prio = (rx.type == H4_EVT && bt_hci_evt_is_prio(rx.evt.evt));
buf = rx.buf;
rx.buf = NULL;
if (rx.type == H4_EVT) {
bt_buf_set_type(buf, BT_BUF_EVT);
} else {
bt_buf_set_type(buf, BT_BUF_ACL_IN);
}
reset_rx();
if (prio) {
BT_DBG("Calling bt_recv_prio(%p)", buf);
bt_recv_prio(buf);
} else {
BT_DBG("Putting buf %p to rx fifo", buf);
net_buf_put(&rx.fifo, buf);
}
}