main.c

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#include <stddef.h>
#include <stdint.h>
 
#include "ra8_attributes.h"
#include "ra8_board_ek_ra8d2.h"
#include "ra8_board_ek_ra8d2_console_stream.h"
#include "ra8_boot_entry.h"
#include "ra8_cgc.h"
#include "ra8_check.h"
#include "ra8_err.h"
#include "ra8_io.h"
#include "ra8_io_roundtrip.h"
#include "ra8_log.h"
#include "ra8_time.h"

typedef enum : uint32_t {
  k_demo_uart_baud   = 115200U, 
  k_demo_disk_blocks = 512U,    
  k_demo_payload     = 128U,    
  k_demo_note_len    = 64U,     
} demo_const_t;

static uint8_t s_disk[(size_t)k_demo_disk_blocks * (size_t)k_ra8_io_block_size_bytes];
static ra8_io_blockdev_t           s_bd;
static ra8_io_blockdev_ram_state_t s_bstate;
static ra8_fs_backend_t s_be;
static ra8_io_stream_t s_uart;

static const char* const s_tag = "ra8_io_demo";

static const ra8_io_roundtrip_params_t s_params = {
  .vfs_prefix   = "ram",
  .fat_type     = k_ra8_fs_type_fat12,
  .volume_label = "RAIO",
  .log_tag      = s_tag,
  .root_file    = "HELLO.TXT",
  .root_path    = "ram:/HELLO.TXT",
  .root_bytes   = (uint32_t)k_demo_payload,
  .subdir_path  = "ram:/SUB",
  .subdir_file  = "ram:/SUB/NOTE.TXT",
  .subdir_bytes = (uint32_t)k_demo_note_len,
};

RA8_INTERNAL static void internal_demo_print(const char* msg)
{
  (void)ra8_io_stream_puts(&s_uart, msg);
}

RA8_INTERNAL static void internal_demo_setup_or_halt(void)
{
  uint32_t cpuclk0_hz = 0U;
  if ((ra8_cgc_init() != k_ra8_ok) ||
      (ra8_cgc_get_clock_hz(k_ra8_clock_id_cpuclk0, &cpuclk0_hz) != k_ra8_ok) ||
      (ra8_time_init(cpuclk0_hz) != k_ra8_ok) ||
      (ra8_board_uart_console_init((uint32_t)k_demo_uart_baud) != k_ra8_ok) ||
      (ra8_board_console_stream(&s_uart) != k_ra8_ok)) {
    while (true) {
    }
  }
}

RA8_INTERNAL static ra8_err_t internal_demo_run(ra8_fs_mount_t** out_mount)
{
  RA8_RETURN_ON_ERROR(
    ra8_io_blockdev_ram_init(&s_bd, &s_bstate, s_disk, (uint32_t)k_demo_disk_blocks, false),
    s_tag,
    "blockdev init");
  RA8_RETURN_ON_ERROR(ra8_io_roundtrip_mount(&s_bd, &s_params, &s_be, out_mount), s_tag, "mount");
  return ra8_io_roundtrip_root_file(*out_mount, &s_params);
}

void main(void)
{
  ra8_log_init();
  internal_demo_setup_or_halt();
  (void)ra8_io_log_attach(&s_uart); /* route ra8_log into the console stream too */
  internal_demo_print("ra8_io_demo: boot\r\n");
 
  ra8_fs_mount_t* mnt = nullptr;
  const ra8_err_t e   = internal_demo_run(&mnt);
  if (e == k_ra8_ok) {
    internal_demo_print("ra8_io_demo: wrote/read 128 bytes ram:/HELLO.TXT PASS\r\n");
    if (ra8_io_roundtrip_subdir_file(&s_params) == k_ra8_ok) {
      internal_demo_print("ra8_io_demo: mkdir+nested ram:/SUB/NOTE.TXT PASS\r\n");
    } else {
      internal_demo_print("ra8_io_demo: mkdir FAIL\r\n");
    }
  } else {
    internal_demo_print("ra8_io_demo: FAIL\r\n");
  }
  (void)ra8_board_uart_console_flush();
  while (true) {
  }
}