debug-uart.h

#ifndef NRF52_DEBUG_INTERFACE_H_INCLUDED
#define NRF52_DEBUG_INTERFACE_H_INCLUDED

#include <nrf_soc.h>
#include <nrf52.h>

struct uart_t;

#ifndef NRF52_DEBUG_STUB
void dbg_setup(void);

void dbg_force_enabled(void);

void dbg_set_input_handler(void (*handler)(const char *inp, unsigned int len));

unsigned int dbg_send_bytes(const unsigned char *seq, unsigned int len);

void dbg_putchar(const char ch);

void dbg_blocking_putchar(const char ch);

void dbg_drain(void);

void dbg_panic(void);

static inline bool dbg_connected(void)
{
  return ((CoreDebug->DHCSR & CoreDebug_DHCSR_C_DEBUGEN_Msk) != 0);
}

void dbg_uart_set_uart(const struct uart_t *uart);

#else /* NRF52_DEBUG_STUB */

#define dbg_setup_uart()                          do {} while (0)
#define dbg_set_input_handler(handler, inp, len)  do {} while (0)
#define dbg_send_bytes(seq, len)                  do {} while (0)
#define dbg_putchar(ch)                           do {} while (0)
#define dbg_blocking_putchar(ch)                  do {} while (0)
#define dbg_drain()                               do {} while (0)
#define dbg_panic()                               do {} while (0)
#define dbg_connected()                           (false)

#endif /* NRF52_DEBUG_STUB */

#endif /* NRF52_DEBUG_INTERFACE_H_INCLUDED */