partvar.h

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/*
** partvar.h for  in /root/research/lseosr2/programs/part
** 
** Made Copyright (c)2004 Julien Quintard
** Login   <quinta_j@epita.fr>
** 
** Started on  Tue Mar  2 13:09:52 2004 Julien Quintard
** Last update Mon Nov 15 15:36:23 2004 Vianney Rancurel
*/
#ifndef PARTVAR_H
#define PARTVAR_H       1
#include <libc.h>
#include <libide.h>

#define PART_DEBUG

#define PART_MBR_SIZE           ATA_BLOCK_SIZE

#define PART_N                  0x04
#define PART_EXT                0x05
#define PART_WIN_EXT            0x0f
#define PART_LINUX_EXT          0x85
#define PART_EXT_UNIT           PART_N + 0x01
#define PART_NOT_EXTENDED       0x00
#define PART_EXTENDED           0x01
#define PART_IN_EXTENDED        0x02

#define PARTS_PER_DEVICE        0x40
#define PARTS_N                 (PARTS_PER_DEVICE * 0x4)

#define PART_PDEV               0x5

/*
 * part syscalls
 */

#define SYSPART_GETACTIVE       0x1
#define SYSPART_GET             0x2
#define SYSPART_SET             0x3     /* to remove in release version */

typedef struct          s_mbr_entry
{
  u_int8_t              me_active;
  u_int8_t              me_start_head;
  u_int8_t              me_start_sector;
  u_int8_t              me_start_cylinder;
  u_int8_t              me_type;
  u_int8_t              me_end_head;
  u_int8_t              me_end_sector;
  u_int8_t              me_end_cylinder;
  u_int32_t             me_lba;
  u_int32_t             me_size;
}                       t_mbr_entry;

typedef struct          s_part
{
  u_int32_t             p_pdev;

  u_int32_t             p_dev;          /* device no */
  char                  p_id;

  u_int32_t             p_unit;

  u_int8_t              p_active;
  u_int8_t              p_type;
  u_int8_t              p_extended;
  u_int32_t             p_start;
  u_int32_t             p_size;
}                       t_part;

typedef struct          s_part_type
{
  u_int8_t              pt_type;
  char                  *pt_name;
}                       t_part_type;

typedef struct          s_part_info
{
  t_part                pi_parts[PARTS_N];
  u_int32_t             pi_slot;

  char                  mbr_sector[PART_MBR_SIZE];

  __cpu_simple_lock_t   pi_lock;
  pid_t                 pi_sys_pid;

  u_int32_t             pi_npdev;
}                       t_part_info;


/* PROTO main.c */
#ifdef KERNEL
/* main.c */
#endif /* KERNEL */
#endif

---