[people/ms/u-boot.git] / disk / part_amiga.h

/*
 * (C) Copyright 2000
 * Hans-Joerg Frieden, Hyperion Entertainment
 * Hans-JoergF@hyperion-entertainment.com
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */

#ifndef _DISK_PART_AMIGA_H
#define _DISK_PART_AMIGA_H
#include <common.h>

#ifdef CONFIG_ISO_PARTITION
/* Make the buffers bigger if ISO partition support is enabled -- CD-ROMS
   have 2048 byte blocks */
#define DEFAULT_SECTOR_SIZE   2048
#else
#define DEFAULT_SECTOR_SIZE	512
#endif


#define AMIGA_BLOCK_LIMIT 16

/*
 * Amiga disks have a very open structure. The head for the partition table information
 * is stored somewhere within the first 16 blocks on disk, and is called the
 * "RigidDiskBlock".
 */

struct rigid_disk_block
{
    u32 id;
    u32 summed_longs;
    s32 chk_sum;
    u32 host_id;
    u32 block_bytes;
    u32 flags;
    u32 bad_block_list;
    u32 partition_list;
    u32 file_sys_header_list;
    u32 drive_init;
    u32 bootcode_block;
    u32 reserved_1[5];

    /* Physical drive geometry */
    u32 cylinders;
    u32 sectors;
    u32 heads;
    u32 interleave;
    u32 park;
    u32 reserved_2[3];
    u32 write_pre_comp;
    u32 reduced_write;
    u32 step_rate;
    u32 reserved_3[5];

    /* logical drive geometry */
    u32 rdb_blocks_lo;
    u32 rdb_blocks_hi;
    u32 lo_cylinder;
    u32 hi_cylinder;
    u32 cyl_blocks;
    u32 auto_park_seconds;
    u32 high_rdsk_block;
    u32 reserved_4;

    char disk_vendor[8];
    char disk_product[16];
    char disk_revision[4];
    char controller_vendor[8];
    char controller_product[16];
    char controller_revision[4];

    u32 reserved_5[10];
};

/*
 * Each partition on this drive is defined by such a block
 */

struct partition_block
{
    u32 id;
    u32 summed_longs;
    s32 chk_sum;
    u32 host_id;
    u32 next;
    u32 flags;
    u32 reserved_1[2];
    u32 dev_flags;
    char drive_name[32];
    u32 reserved_2[15];
    u32 environment[17];
    u32 reserved_3[15];
};

struct bootcode_block
{
    u32   id;
    u32   summed_longs;
    s32   chk_sum;
    u32   host_id;
    u32   next;
    u32   load_data[123];
};


#define AMIGA_ID_RDISK                  0x5244534B
#define AMIGA_ID_PART                   0x50415254
#define AMIGA_ID_BOOT                   0x424f4f54

/*
 * The environment array in the partition block
 * describes the partition
 */

struct amiga_part_geometry
{
    u32 table_size;
    u32 size_blocks;
    u32 unused1;
    u32 surfaces;
    u32 sector_per_block;
    u32 block_per_track;
    u32 reserved;
    u32 prealloc;
    u32 interleave;
    u32 low_cyl;
    u32 high_cyl;
    u32 num_buffers;
    u32 buf_mem_type;
    u32 max_transfer;
    u32 mask;
    s32 boot_priority;
    u32 dos_type;
    u32 baud;
    u32 control;
    u32 boot_blocks;
};

#endif /* _DISK_PART_AMIGA_H_ */
Commit	Line	Data
c7de829c WD	1	/*
	2	* (C) Copyright 2000
	3	* Hans-Joerg Frieden, Hyperion Entertainment
	4	* Hans-JoergF@hyperion-entertainment.com
	5	*
3765b3e7	6	* SPDX-License-Identifier: GPL-2.0+
c7de829c WD	7	*/
	8
	9	#ifndef _DISK_PART_AMIGA_H
	10	#define _DISK_PART_AMIGA_H
	11	#include <common.h>
	12
	13	#ifdef CONFIG_ISO_PARTITION
	14	/* Make the buffers bigger if ISO partition support is enabled -- CD-ROMS
	15	have 2048 byte blocks */
	16	#define DEFAULT_SECTOR_SIZE 2048
	17	#else
	18	#define DEFAULT_SECTOR_SIZE 512
	19	#endif
	20
	21
	22	#define AMIGA_BLOCK_LIMIT 16
	23
	24	/*
	25	* Amiga disks have a very open structure. The head for the partition table information
	26	* is stored somewhere within the first 16 blocks on disk, and is called the
	27	* "RigidDiskBlock".
	28	*/
	29
8bde7f77	30	struct rigid_disk_block
c7de829c WD	31	{
	32	u32 id;
	33	u32 summed_longs;
	34	s32 chk_sum;
	35	u32 host_id;
	36	u32 block_bytes;
	37	u32 flags;
	38	u32 bad_block_list;
	39	u32 partition_list;
	40	u32 file_sys_header_list;
	41	u32 drive_init;
	42	u32 bootcode_block;
	43	u32 reserved_1[5];
8bde7f77	44
c7de829c WD	45	/* Physical drive geometry */
	46	u32 cylinders;
	47	u32 sectors;
	48	u32 heads;
	49	u32 interleave;
	50	u32 park;
	51	u32 reserved_2[3];
	52	u32 write_pre_comp;
	53	u32 reduced_write;
	54	u32 step_rate;
	55	u32 reserved_3[5];
	56
	57	/* logical drive geometry */
	58	u32 rdb_blocks_lo;
	59	u32 rdb_blocks_hi;
	60	u32 lo_cylinder;
	61	u32 hi_cylinder;
	62	u32 cyl_blocks;
	63	u32 auto_park_seconds;
	64	u32 high_rdsk_block;
	65	u32 reserved_4;
8bde7f77	66
c7de829c WD	67	char disk_vendor[8];
	68	char disk_product[16];
	69	char disk_revision[4];
	70	char controller_vendor[8];
	71	char controller_product[16];
	72	char controller_revision[4];
8bde7f77	73
c7de829c WD	74	u32 reserved_5[10];
	75	};
	76
	77	/*
	78	* Each partition on this drive is defined by such a block
	79	*/
	80
8bde7f77	81	struct partition_block
c7de829c WD	82	{
	83	u32 id;
	84	u32 summed_longs;
	85	s32 chk_sum;
	86	u32 host_id;
	87	u32 next;
	88	u32 flags;
	89	u32 reserved_1[2];
	90	u32 dev_flags;
	91	char drive_name[32];
	92	u32 reserved_2[15];
	93	u32 environment[17];
	94	u32 reserved_3[15];
	95	};
	96
8bde7f77	97	struct bootcode_block
c7de829c WD	98	{
	99	u32 id;
	100	u32 summed_longs;
	101	s32 chk_sum;
	102	u32 host_id;
	103	u32 next;
	104	u32 load_data[123];
	105	};
	106
	107
	108	#define AMIGA_ID_RDISK 0x5244534B
	109	#define AMIGA_ID_PART 0x50415254
	110	#define AMIGA_ID_BOOT 0x424f4f54
	111
8bde7f77	112	/*
c7de829c WD	113	* The environment array in the partition block
	114	* describes the partition
	115	*/
	116
8bde7f77	117	struct amiga_part_geometry
c7de829c WD	118	{
	119	u32 table_size;
	120	u32 size_blocks;
	121	u32 unused1;
	122	u32 surfaces;
	123	u32 sector_per_block;
	124	u32 block_per_track;
	125	u32 reserved;
	126	u32 prealloc;
	127	u32 interleave;
	128	u32 low_cyl;
	129	u32 high_cyl;
	130	u32 num_buffers;
	131	u32 buf_mem_type;
	132	u32 max_transfer;
	133	u32 mask;
	134	s32 boot_priority;
	135	u32 dos_type;
	136	u32 baud;
	137	u32 control;
	138	u32 boot_blocks;
	139	};
	140
	141	#endif /* _DISK_PART_AMIGA_H_ */