static void uart_event_handler(nrf_drv_uart_event_t * p_event, void* p_context)
{
if (p_event->type == NRF_DRV_UART_EVT_RX_DONE)
{
app_uart_evt_t app_uart_event;
app_uart_event.evt_type = APP_UART_DATA;
app_uart_event.data.value = p_event->data.rxtx.p_data[0];
(void)nrf_drv_uart_rx(&app_uart_inst, rx_buffer, 1);
rx_done = true;
m_event_handler(&app_uart_event);
}
else if (p_event->type == NRF_DRV_UART_EVT_ERROR)
{
app_uart_evt_t app_uart_event;
app_uart_event.evt_type = APP_UART_COMMUNICATION_ERROR;
app_uart_event.data.error_communication = p_event->data.error.error_mask;
(void)nrf_drv_uart_rx(&app_uart_inst, rx_buffer, 1);
m_event_handler(&app_uart_event);
}
else if (p_event->type == NRF_DRV_UART_EVT_TX_DONE)
{
// Last byte from FIFO transmitted, notify the application.
// Notify that new data is available if this was first byte put in the buffer.
app_uart_evt_t app_uart_event;
app_uart_event.evt_type = APP_UART_TX_EMPTY;
m_event_handler(&app_uart_event);
}
}
static void uart_event_handler(nrf_drv_uart_event_t * p_event, void* p_context)
{
app_uart_evt_t app_uart_event;
if (p_event->type == NRF_DRV_UART_EVT_RX_DONE)
{
// Write received byte to FIFO
uint32_t err_code = app_fifo_put(&m_rx_fifo, p_event->data.rxtx.p_data[0]);
if (err_code != NRF_SUCCESS)
{
app_uart_event.evt_type = APP_UART_FIFO_ERROR;
app_uart_event.data.error_code = err_code;
m_event_handler(&app_uart_event);
}
// Notify that new data is available if this was first byte put in the buffer.
else if (FIFO_LENGTH(m_rx_fifo) == 1)
{
app_uart_event.evt_type = APP_UART_DATA_READY;
m_event_handler(&app_uart_event);
}
else
{
// Do nothing, only send event if first byte was added or overflow in FIFO occurred.
}
if (FIFO_LENGTH(m_rx_fifo) <= m_rx_fifo.buf_size_mask)
{
(void)nrf_drv_uart_rx(rx_buffer,1);
}
}
else if (p_event->type == NRF_DRV_UART_EVT_ERROR)
{
app_uart_event.evt_type = APP_UART_COMMUNICATION_ERROR;
app_uart_event.data.error_communication = p_event->data.error.error_mask;
(void)nrf_drv_uart_rx(rx_buffer,1);
m_event_handler(&app_uart_event);
}
else if (p_event->type == NRF_DRV_UART_EVT_TX_DONE)
{
// Get next byte from FIFO.
if (app_fifo_get(&m_tx_fifo, tx_buffer) == NRF_SUCCESS)
{
(void)nrf_drv_uart_tx(tx_buffer,1);
}
if (FIFO_LENGTH(m_tx_fifo) == 0)
{
// Last byte from FIFO transmitted, notify the application.
// Notify that new data is available if this was first byte put in the buffer.
app_uart_event.evt_type = APP_UART_TX_EMPTY;
m_event_handler(&app_uart_event);
}
}
}
uint32_t ser_phy_hci_slip_open(ser_phy_hci_slip_event_handler_t events_handler)
{
uint32_t err_code;
if (events_handler == NULL)
{
return NRF_ERROR_NULL;
}
// Check if function was not called before.
if (m_ser_phy_hci_slip_event_handler != NULL)
{
return NRF_ERROR_INVALID_STATE;
}
m_ser_phy_hci_slip_event_handler = events_handler;
err_code = nrf_drv_uart_init(&m_uart, &m_uart_config, uart_event_handler);
if (err_code != NRF_SUCCESS)
{
return NRF_ERROR_INVALID_PARAM;
}
ser_phy_hci_slip_reset();
APP_ERROR_CHECK(nrf_drv_uart_rx(&m_uart, m_rx_buf, 1));
return NRF_SUCCESS;
}
uint32_t app_uart_init(const app_uart_comm_params_t * p_comm_params,
app_uart_buffers_t * p_buffers,
app_uart_event_handler_t event_handler,
app_irq_priority_t irq_priority)
{
nrf_drv_uart_config_t config = NRF_DRV_UART_DEFAULT_CONFIG;
config.baudrate = (nrf_uart_baudrate_t)p_comm_params->baud_rate;
config.hwfc = (p_comm_params->flow_control == APP_UART_FLOW_CONTROL_DISABLED) ?
NRF_UART_HWFC_DISABLED : NRF_UART_HWFC_ENABLED;
config.interrupt_priority = irq_priority;
config.parity = p_comm_params->use_parity ? NRF_UART_PARITY_INCLUDED : NRF_UART_PARITY_EXCLUDED;
config.pselcts = p_comm_params->cts_pin_no;
config.pselrts = p_comm_params->rts_pin_no;
config.pselrxd = p_comm_params->rx_pin_no;
config.pseltxd = p_comm_params->tx_pin_no;
m_event_handler = event_handler;
rx_done = false;
if (p_comm_params->flow_control == APP_UART_FLOW_CONTROL_LOW_POWER)
{
return NRF_ERROR_NOT_SUPPORTED;
}
uint32_t err_code = nrf_drv_uart_init(&config, uart_event_handler);
if (err_code != NRF_SUCCESS)
{
return err_code;
}
nrf_drv_uart_rx_enable();
return nrf_drv_uart_rx(rx_buffer,1);
}
uint32_t app_uart_init(const app_uart_comm_params_t * p_comm_params,
app_uart_buffers_t * p_buffers,
app_uart_event_handler_t event_handler,
app_irq_priority_t irq_priority)
{
nrf_drv_uart_config_t config = NRF_DRV_UART_DEFAULT_CONFIG;
config.baudrate = (nrf_uart_baudrate_t)p_comm_params->baud_rate;
config.hwfc = (p_comm_params->flow_control == APP_UART_FLOW_CONTROL_DISABLED) ?
NRF_UART_HWFC_DISABLED : NRF_UART_HWFC_ENABLED;
config.interrupt_priority = irq_priority;
config.parity = p_comm_params->use_parity ? NRF_UART_PARITY_INCLUDED : NRF_UART_PARITY_EXCLUDED;
config.pselcts = p_comm_params->cts_pin_no;
config.pselrts = p_comm_params->rts_pin_no;
config.pselrxd = p_comm_params->rx_pin_no;
config.pseltxd = p_comm_params->tx_pin_no;
m_event_handler = event_handler;
rx_done = false;
uint32_t err_code = nrf_drv_uart_init(&app_uart_inst, &config, uart_event_handler);
VERIFY_SUCCESS(err_code);
// Turn on receiver if RX pin is connected
if (p_comm_params->rx_pin_no != UART_PIN_DISCONNECTED)
{
return nrf_drv_uart_rx(&app_uart_inst, rx_buffer,1);
}
else
{
return NRF_SUCCESS;
}
}
uint32_t app_uart_init(const app_uart_comm_params_t * p_comm_params,
app_uart_buffers_t * p_buffers,
app_uart_event_handler_t event_handler,
app_irq_priority_t irq_priority)
{
uint32_t err_code;
m_event_handler = event_handler;
if (p_buffers == NULL)
{
return NRF_ERROR_INVALID_PARAM;
}
// Configure buffer RX buffer.
err_code = app_fifo_init(&m_rx_fifo, p_buffers->rx_buf, p_buffers->rx_buf_size);
VERIFY_SUCCESS(err_code);
// Configure buffer TX buffer.
err_code = app_fifo_init(&m_tx_fifo, p_buffers->tx_buf, p_buffers->tx_buf_size);
VERIFY_SUCCESS(err_code);
nrf_drv_uart_config_t config = NRF_DRV_UART_DEFAULT_CONFIG;
config.baudrate = (nrf_uart_baudrate_t)p_comm_params->baud_rate;
config.hwfc = (p_comm_params->flow_control == APP_UART_FLOW_CONTROL_DISABLED) ?
NRF_UART_HWFC_DISABLED : NRF_UART_HWFC_ENABLED;
config.interrupt_priority = irq_priority;
config.parity = p_comm_params->use_parity ? NRF_UART_PARITY_INCLUDED : NRF_UART_PARITY_EXCLUDED;
config.pselcts = p_comm_params->cts_pin_no;
config.pselrts = p_comm_params->rts_pin_no;
config.pselrxd = p_comm_params->rx_pin_no;
config.pseltxd = p_comm_params->tx_pin_no;
err_code = nrf_drv_uart_init(&app_uart_inst, &config, uart_event_handler);
VERIFY_SUCCESS(err_code);
m_rx_ovf = false;
// Turn on receiver if RX pin is connected
if (p_comm_params->rx_pin_no != UART_PIN_DISCONNECTED)
{
#ifdef UARTE_PRESENT
if (!config.use_easy_dma)
#endif
{
nrf_drv_uart_rx_enable(&app_uart_inst);
}
return nrf_drv_uart_rx(&app_uart_inst, rx_buffer,1);
}
else
{
return NRF_SUCCESS;
}
}
/**
* Initialize the RS232 port.
*
*/
void
uart0_init(unsigned long ubr)
{
nrf_drv_uart_config_t config = NRF_DRV_UART_DEFAULT_CONFIG;
ret_code_t retcode = nrf_drv_uart_init(&config, uart_event_handler);
APP_ERROR_CHECK(retcode);
ringbuf_init(&txbuf, txbuf_data, sizeof(txbuf_data));
nrf_drv_uart_rx_enable();
nrf_drv_uart_rx(rx_buffer, 1);
}
uint32_t app_uart_init(const app_uart_comm_params_t * p_comm_params,
app_uart_buffers_t * p_buffers,
app_uart_event_handler_t event_handler,
app_irq_priority_t irq_priority)
{
uint32_t err_code;
m_event_handler = event_handler;
if (p_buffers == NULL)
{
return NRF_ERROR_INVALID_PARAM;
}
// Configure buffer RX buffer.
err_code = app_fifo_init(&m_rx_fifo, p_buffers->rx_buf, p_buffers->rx_buf_size);
if (err_code != NRF_SUCCESS)
{
// Propagate error code.
return err_code;
}
// Configure buffer TX buffer.
err_code = app_fifo_init(&m_tx_fifo, p_buffers->tx_buf, p_buffers->tx_buf_size);
if (err_code != NRF_SUCCESS)
{
// Propagate error code.
return err_code;
}
nrf_drv_uart_config_t config = NRF_DRV_UART_DEFAULT_CONFIG;
config.baudrate = (nrf_uart_baudrate_t)p_comm_params->baud_rate;
config.hwfc = (p_comm_params->flow_control == APP_UART_FLOW_CONTROL_DISABLED) ?
NRF_UART_HWFC_DISABLED : NRF_UART_HWFC_ENABLED;
config.interrupt_priority = irq_priority;
config.parity = p_comm_params->use_parity ? NRF_UART_PARITY_INCLUDED : NRF_UART_PARITY_EXCLUDED;
config.pselcts = p_comm_params->cts_pin_no;
config.pselrts = p_comm_params->rts_pin_no;
config.pselrxd = p_comm_params->rx_pin_no;
config.pseltxd = p_comm_params->tx_pin_no;
err_code = nrf_drv_uart_init(&config, uart_event_handler);
if (err_code != NRF_SUCCESS)
{
return err_code;
}
nrf_drv_uart_rx_enable();
return nrf_drv_uart_rx(rx_buffer,1);
}
uint32_t app_uart_get(uint8_t * p_byte)
{
ASSERT(p_byte);
// If FIFO was full new request to receive one byte was not scheduled. Must be done here.
if (FIFO_LENGTH(m_rx_fifo) == m_rx_fifo.buf_size_mask)
{
uint32_t err_code = nrf_drv_uart_rx(rx_buffer,1);
if (err_code != NRF_SUCCESS)
{
return NRF_ERROR_NOT_FOUND;
}
}
return app_fifo_get(&m_rx_fifo, p_byte);
}
static __INLINE void on_rx_complete(serial_dfu_t * p_dfu, uint8_t * p_data, uint8_t len)
{
ret_code_t ret_code;
ret_code = slip_decode_add_byte(&p_dfu->slip, p_data[0]);
if (ret_code == NRF_SUCCESS)
{
on_packet_received(p_dfu);
// reset the slip decoding
p_dfu->slip.current_index = 0;
p_dfu->slip.state = SLIP_STATE_DECODING;
}
(void)nrf_drv_uart_rx(&m_dfu.uart_instance, &m_dfu.uart_buffer, 1);
}
uint32_t serial_dfu_transport_init(void)
{
uint32_t err_code;
leds_init();
m_dfu.slip.p_buffer = m_dfu.recv_buffer;
m_dfu.slip.current_index = 0;
m_dfu.slip.buffer_len = sizeof(m_dfu.recv_buffer);
m_dfu.slip.state = SLIP_STATE_DECODING;
nrf_drv_uart_config_t uart_config = NRF_DRV_UART_DEFAULT_CONFIG;
uart_config.pseltxd = TX_PIN_NUMBER;
uart_config.pselrxd = RX_PIN_NUMBER;
uart_config.pselcts = CTS_PIN_NUMBER;
uart_config.pselrts = RTS_PIN_NUMBER;
uart_config.hwfc = NRF_UART_HWFC_ENABLED;
uart_config.p_context = &m_dfu;
nrf_drv_uart_t instance = NRF_DRV_UART_INSTANCE(0);
memcpy(&m_dfu.uart_instance, &instance, sizeof(instance));
err_code = nrf_drv_uart_init(&m_dfu.uart_instance,
&uart_config,
uart_event_handler);
if (err_code != NRF_SUCCESS)
{
NRF_LOG_ERROR("Failed initializing uart\n");
return err_code;
}
nrf_drv_uart_rx_enable(&m_dfu.uart_instance);
err_code = nrf_drv_uart_rx(&m_dfu.uart_instance, &m_dfu.uart_buffer, 1);
if (err_code != NRF_SUCCESS)
{
NRF_LOG_ERROR("Failed initializing rx\n");
}
NRF_LOG_DEBUG("UART initialized\n");
return err_code;
}
/*---------------------------------------------------------------------------*/
static void
uart_event_handler(nrf_drv_uart_event_t * p_event, void * p_context)
{
ENERGEST_ON(ENERGEST_TYPE_IRQ);
if (p_event->type == NRF_DRV_UART_EVT_RX_DONE) {
if (uart0_input_handler != NULL) {
uart0_input_handler(p_event->data.rxtx.p_data[0]);
}
(void)nrf_drv_uart_rx(rx_buffer, 1);
} else if (p_event->type == NRF_DRV_UART_EVT_TX_DONE) {
if (ringbuf_elements(&txbuf) > 0) {
uint8_t c = ringbuf_get(&txbuf);
nrf_drv_uart_tx(&c, 1);
}
}
ENERGEST_OFF(ENERGEST_TYPE_IRQ);
}
uint32_t app_uart_get(uint8_t * p_byte)
{
ASSERT(p_byte);
bool rx_ovf = m_rx_ovf;
ret_code_t err_code = app_fifo_get(&m_rx_fifo, p_byte);
// If FIFO was full new request to receive one byte was not scheduled. Must be done here.
if (rx_ovf)
{
m_rx_ovf = false;
uint32_t uart_err_code = nrf_drv_uart_rx(&app_uart_inst, rx_buffer, 1);
// RX resume should never fail.
APP_ERROR_CHECK(uart_err_code);
}
return err_code;
}
static void uart_event_handler(nrf_drv_uart_event_t * p_event,
void * p_context)
{
(void)p_context;
switch (p_event->type)
{
case NRF_DRV_UART_EVT_ERROR:
// Process the error only if this is a parity or overrun error.
// Break and framing errors will always occur before the other
// side becomes active.
if (p_event->data.error.error_mask &
(NRF_UART_ERROR_PARITY_MASK | NRF_UART_ERROR_OVERRUN_MASK))
{
// Pass error source to upper layer
m_ser_phy_hci_slip_event.evt_type =
SER_PHY_HCI_SLIP_EVT_HW_ERROR;
m_ser_phy_hci_slip_event.evt_params.hw_error.error_code =
p_event->data.error.error_mask;
m_ser_phy_hci_slip_event_handler(&m_ser_phy_hci_slip_event);
}
APP_ERROR_CHECK(nrf_drv_uart_rx(&m_uart, m_rx_buf, 1));
break;
case NRF_DRV_UART_EVT_TX_DONE:
// If there is a pending transfer (the second buffer is ready to
// be sent), start it immediately.
if (m_tx_pending)
{
APP_ERROR_CHECK(nrf_drv_uart_tx(&m_uart, mp_tx_buf, m_tx_bytes));
// Switch to the buffer that has just been sent completely
// and now can be filled again.
mp_tx_buf = (mp_tx_buf == m_tx_buf0) ? m_tx_buf1 : m_tx_buf0;
m_tx_bytes = 0;
m_ser_phy_hci_slip_event.evt_type = m_tx_evt_type;
m_tx_evt_type = m_tx_pending_evt_type;
m_tx_pending = false;
}
else
{
m_tx_in_progress = false;
m_ser_phy_hci_slip_event.evt_type = m_tx_evt_type;
}
// If needed, notify the upper layer that the packet transfer is
// complete (note that this notification may result in another
// packet send request, so everything must be cleaned up above).
if (m_ser_phy_hci_slip_event.evt_type != NO_EVENT)
{
m_ser_phy_hci_slip_event_handler(&m_ser_phy_hci_slip_event);
}
// And if the sending process is not yet finished, look what is
// to be done next.
if (m_tx_phase != PHASE_IDLE)
{
tx_buf_fill();
}
break;
case NRF_DRV_UART_EVT_RX_DONE:
{
uint8_t rx_byte = m_rx_buf[0];
APP_ERROR_CHECK(nrf_drv_uart_rx(&m_uart, m_rx_buf, 1));
ser_phi_hci_rx_byte(rx_byte);
}
break;
default:
APP_ERROR_CHECK(NRF_ERROR_INTERNAL);
}
}
void uart_read(char *data, uint8_t length)
{
uint32_t errCode;
errCode = nrf_drv_uart_rx((uint8_t *)data, length);
APP_ERROR_CHECK(errCode);
}
static void uart_event_handler(nrf_drv_uart_event_t * p_event, void* p_context)
{
app_uart_evt_t app_uart_event;
uint32_t err_code;
switch (p_event->type)
{
case NRF_DRV_UART_EVT_RX_DONE:
// Write received byte to FIFO.
err_code = app_fifo_put(&m_rx_fifo, p_event->data.rxtx.p_data[0]);
if (err_code != NRF_SUCCESS)
{
app_uart_event.evt_type = APP_UART_FIFO_ERROR;
app_uart_event.data.error_code = err_code;
m_event_handler(&app_uart_event);
}
// Notify that there are data available.
else if (FIFO_LENGTH(m_rx_fifo) != 0)
{
app_uart_event.evt_type = APP_UART_DATA_READY;
m_event_handler(&app_uart_event);
}
// Start new RX if size in buffer.
if (FIFO_LENGTH(m_rx_fifo) <= m_rx_fifo.buf_size_mask)
{
(void)nrf_drv_uart_rx(&app_uart_inst, rx_buffer, 1);
}
else
{
// Overflow in RX FIFO.
m_rx_ovf = true;
}
break;
case NRF_DRV_UART_EVT_ERROR:
app_uart_event.evt_type = APP_UART_COMMUNICATION_ERROR;
app_uart_event.data.error_communication = p_event->data.error.error_mask;
(void)nrf_drv_uart_rx(&app_uart_inst, rx_buffer, 1);
m_event_handler(&app_uart_event);
break;
case NRF_DRV_UART_EVT_TX_DONE:
// Get next byte from FIFO.
if (app_fifo_get(&m_tx_fifo, tx_buffer) == NRF_SUCCESS)
{
(void)nrf_drv_uart_tx(&app_uart_inst, tx_buffer, 1);
}
else
{
// Last byte from FIFO transmitted, notify the application.
app_uart_event.evt_type = APP_UART_TX_EMPTY;
m_event_handler(&app_uart_event);
}
break;
default:
break;
}
}
/*====================================================================================================*/
uint8_t Serial_RecvByte( void )
{
uint8_t recvByte = 0;
nrf_drv_uart_rx(&recvByte, 1);
return recvByte;
}
int fgetc( FILE *f )
{
uint8_t data = 0;
nrf_drv_uart_rx(&data, 1);
return (uint8_t)data;
}
/*====================================================================================================*/
void Serial_RecvData( uint8_t *recvData, uint16_t lens )
{
nrf_drv_uart_rx(recvData, lens);
}
