ra8_nsc_periph_init.c

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#include <stdint.h>
 
#include "ra8_attributes.h"
#include "ra8_dma.h"
#include "ra8_err.h"
#include "ra8_isr.h"
#include "ra8_log.h"
#include "ra8_mstp.h"
#include "ra8_nsc.h"
#include "ra8_nsc_veneer.h"
#include "ra8_pwr.h"
 
#ifdef RA8_APP_UART_LOG
/* The e-reader product defines RA8_APP_UART_LOG to mirror ra8_log onto the SCI8
 * J-Link console, so the logs appear on the UART (ra8_emulator's on-screen console
 * + a real serial terminal) and not only on the ITM/SWO trace. Gated so other
 * ra8_nsc consumers do not pick up a ra8_board dependency. */
#include "ra8_board_ek_ra8d2.h"
#endif
 
static const char* s_tag = "NSCPRH";
 
static bool s_initialized = false;
 
#ifdef RA8_APP_UART_LOG
typedef enum : uint32_t {
  k_ra8_nsc_uart_log_baud = 115200U, 
} ra8_nsc_uart_log_cfg_t;

RA8_INTERNAL
static void internal_uart_log_sink(void* ctx, uint8_t byte)
{
  (void)ctx;
  (void)ra8_board_uart_console_write(&byte, 1U);
}
#endif

RA8_NSC_VENEER ra8_err_t ra8_nsc_periph_init(void)
{
  if (s_initialized) {
    return k_ra8_ok;
  }
 
  ra8_err_t err = ra8_mstp_init();
  if (err != k_ra8_ok) {
    ra8_log_error_val(s_tag, "ra8_mstp_init", (uint32_t)err);
    return k_ra8_err_hw_init_failed;
  }
 
  err = ra8_pwr_init();
  if (err != k_ra8_ok) {
    ra8_log_error_val(s_tag, "ra8_pwr_init", (uint32_t)err);
    return k_ra8_err_hw_init_failed;
  }
 
  err = ra8_isr_init();
  if (err != k_ra8_ok) {
    ra8_log_error_val(s_tag, "ra8_isr_init", (uint32_t)err);
    return k_ra8_err_hw_init_failed;
  }
 
  err = ra8_dma_init();
  if (err != k_ra8_ok) {
    ra8_log_error_val(s_tag, "ra8_dma_init", (uint32_t)err);
    return k_ra8_err_hw_init_failed;
  }
 
#ifdef RA8_APP_UART_LOG
  /* Bring up the SCI8 console and redirect ra8_log to it so the logs land on the
   * UART (ra8_emulator console + serial), not only ITM. ra8_cgc_init already ran in
   * SystemInit. Best-effort: a console bring-up failure must not fail the
   * substrate, so its result is dropped and ra8_log keeps its ITM default. */
  if (ra8_board_uart_console_init((uint32_t)k_ra8_nsc_uart_log_baud) == k_ra8_ok) {
    ra8_log_set_byte_sink(internal_uart_log_sink, nullptr);
  }
#endif
 
  s_initialized = true;
  ra8_log_info(s_tag, "secure substrate up");
  return k_ra8_ok;
}