#include <string.h>

#include <physio.h>

#include "volumes.h"
#include "bloc.h"

void read_bloc(unsigned int partition,
	       uint32_t bloc,
	       uintptr_t *buffer)
{

  uint16_t cyl = cylinder_of_block(partition, bloc);
  uint16_t sec = sector_of_block(partition, bloc);

  read_sector(cyl, sec, buffer);
}

void read_block_alloc(unsigned int partition,
		      uint32_t bloc,
		      uintptr_t **buffer)
{
  *buffer = malloc(block_size());
  read_bloc(partition, bloc, *buffer);
}


void read_data_from_block(unsigned int volume,
			  uint32_t block,
			  void *data,
			  size_t size)
{
  void *buffer = malloc(block_size());
  read_bloc(volume, block, buffer);
  memcpy(data, buffer, size);
  free(buffer);
}


void write_data_to_block(unsigned int volume,
			 uint32_t block,
			 void *data,
			 size_t size)
{
  void *buffer = malloc(block_size());
  memcpy(buffer, data, size);
  write_bloc(volume, block, buffer);
  free(buffer);
}
			 

void write_bloc(unsigned int volume,
		uint32_t block,
		uintptr_t *buffer)
{
  uint16_t cyl = cylinder_of_block(volume, block);
  uint16_t sec = sector_of_block(volume, block);

  write_sector(cyl, sec, buffer);
}

void format_bloc(unsigned int partition,
		 uint32_t bloc,
		 int value)
{
  uint16_t cyl = cylinder_of_block(partition, bloc);
  uint16_t sec = sector_of_block(partition, bloc);

  format_sector(cyl, sec, 1, value);
}


size_t block_size()
{
  struct dskinfo_t info = dskinfo();
  return info.taille_sec;
}