xref: /openbmc/u-boot/include/part.h (revision bcc05c7a)
1  /*
2   * (C) Copyright 2000-2004
3   * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4   *
5   * SPDX-License-Identifier:	GPL-2.0+
6   */
7  #ifndef _PART_H
8  #define _PART_H
9  
10  #include <ide.h>
11  
12  typedef struct block_dev_desc {
13  	int		if_type;	/* type of the interface */
14  	int		dev;		/* device number */
15  	unsigned char	part_type;	/* partition type */
16  	unsigned char	target;		/* target SCSI ID */
17  	unsigned char	lun;		/* target LUN */
18  	unsigned char	type;		/* device type */
19  	unsigned char	removable;	/* removable device */
20  #ifdef CONFIG_LBA48
21  	unsigned char	lba48;		/* device can use 48bit addr (ATA/ATAPI v7) */
22  #endif
23  	lbaint_t	lba;		/* number of blocks */
24  	unsigned long	blksz;		/* block size */
25  	int		log2blksz;	/* for convenience: log2(blksz) */
26  	char		vendor [40+1];	/* IDE model, SCSI Vendor */
27  	char		product[20+1];	/* IDE Serial no, SCSI product */
28  	char		revision[8+1];	/* firmware revision */
29  	unsigned long	(*block_read)(int dev,
30  				      lbaint_t start,
31  				      lbaint_t blkcnt,
32  				      void *buffer);
33  	unsigned long	(*block_write)(int dev,
34  				       lbaint_t start,
35  				       lbaint_t blkcnt,
36  				       const void *buffer);
37  	unsigned long   (*block_erase)(int dev,
38  				       lbaint_t start,
39  				       lbaint_t blkcnt);
40  	void		*priv;		/* driver private struct pointer */
41  }block_dev_desc_t;
42  
43  #define BLOCK_CNT(size, block_dev_desc) (PAD_COUNT(size, block_dev_desc->blksz))
44  #define PAD_TO_BLOCKSIZE(size, block_dev_desc) \
45  	(PAD_SIZE(size, block_dev_desc->blksz))
46  #define LOG2(x) (((x & 0xaaaaaaaa) ? 1 : 0) + ((x & 0xcccccccc) ? 2 : 0) + \
47  		 ((x & 0xf0f0f0f0) ? 4 : 0) + ((x & 0xff00ff00) ? 8 : 0) + \
48  		 ((x & 0xffff0000) ? 16 : 0))
49  #define LOG2_INVALID(type) ((type)((sizeof(type)<<3)-1))
50  
51  /* Interface types: */
52  #define IF_TYPE_UNKNOWN		0
53  #define IF_TYPE_IDE		1
54  #define IF_TYPE_SCSI		2
55  #define IF_TYPE_ATAPI		3
56  #define IF_TYPE_USB		4
57  #define IF_TYPE_DOC		5
58  #define IF_TYPE_MMC		6
59  #define IF_TYPE_SD		7
60  #define IF_TYPE_SATA		8
61  
62  /* Part types */
63  #define PART_TYPE_UNKNOWN	0x00
64  #define PART_TYPE_MAC		0x01
65  #define PART_TYPE_DOS		0x02
66  #define PART_TYPE_ISO		0x03
67  #define PART_TYPE_AMIGA		0x04
68  #define PART_TYPE_EFI		0x05
69  
70  /*
71   * Type string for U-Boot bootable partitions
72   */
73  #define BOOT_PART_TYPE	"U-Boot"	/* primary boot partition type	*/
74  #define BOOT_PART_COMP	"PPCBoot"	/* PPCBoot compatibility type	*/
75  
76  /* device types */
77  #define DEV_TYPE_UNKNOWN	0xff	/* not connected */
78  #define DEV_TYPE_HARDDISK	0x00	/* harddisk */
79  #define DEV_TYPE_TAPE		0x01	/* Tape */
80  #define DEV_TYPE_CDROM		0x05	/* CD-ROM */
81  #define DEV_TYPE_OPDISK		0x07	/* optical disk */
82  
83  typedef struct disk_partition {
84  	lbaint_t	start;	/* # of first block in partition	*/
85  	lbaint_t	size;	/* number of blocks in partition	*/
86  	ulong	blksz;		/* block size in bytes			*/
87  	uchar	name[32];	/* partition name			*/
88  	uchar	type[32];	/* string type description		*/
89  	int	bootable;	/* Active/Bootable flag is set		*/
90  #ifdef CONFIG_PARTITION_UUIDS
91  	char	uuid[37];	/* filesystem UUID as string, if exists	*/
92  #endif
93  } disk_partition_t;
94  
95  /* Misc _get_dev functions */
96  #ifdef CONFIG_PARTITIONS
97  block_dev_desc_t *get_dev(const char *ifname, int dev);
98  block_dev_desc_t* ide_get_dev(int dev);
99  block_dev_desc_t* sata_get_dev(int dev);
100  block_dev_desc_t* scsi_get_dev(int dev);
101  block_dev_desc_t* usb_stor_get_dev(int dev);
102  block_dev_desc_t* mmc_get_dev(int dev);
103  block_dev_desc_t* systemace_get_dev(int dev);
104  block_dev_desc_t* mg_disk_get_dev(int dev);
105  
106  /* disk/part.c */
107  int get_partition_info (block_dev_desc_t * dev_desc, int part, disk_partition_t *info);
108  void print_part (block_dev_desc_t *dev_desc);
109  void  init_part (block_dev_desc_t *dev_desc);
110  void dev_print(block_dev_desc_t *dev_desc);
111  int get_device(const char *ifname, const char *dev_str,
112  	       block_dev_desc_t **dev_desc);
113  int get_device_and_partition(const char *ifname, const char *dev_part_str,
114  			     block_dev_desc_t **dev_desc,
115  			     disk_partition_t *info, int allow_whole_dev);
116  #else
117  static inline block_dev_desc_t *get_dev(const char *ifname, int dev)
118  { return NULL; }
119  static inline block_dev_desc_t* ide_get_dev(int dev) { return NULL; }
120  static inline block_dev_desc_t* sata_get_dev(int dev) { return NULL; }
121  static inline block_dev_desc_t* scsi_get_dev(int dev) { return NULL; }
122  static inline block_dev_desc_t* usb_stor_get_dev(int dev) { return NULL; }
123  static inline block_dev_desc_t* mmc_get_dev(int dev) { return NULL; }
124  static inline block_dev_desc_t* systemace_get_dev(int dev) { return NULL; }
125  static inline block_dev_desc_t* mg_disk_get_dev(int dev) { return NULL; }
126  
127  static inline int get_partition_info (block_dev_desc_t * dev_desc, int part,
128  	disk_partition_t *info) { return -1; }
129  static inline void print_part (block_dev_desc_t *dev_desc) {}
130  static inline void  init_part (block_dev_desc_t *dev_desc) {}
131  static inline void dev_print(block_dev_desc_t *dev_desc) {}
132  static inline int get_device(const char *ifname, const char *dev_str,
133  	       block_dev_desc_t **dev_desc)
134  { return -1; }
135  static inline int get_device_and_partition(const char *ifname,
136  					   const char *dev_part_str,
137  					   block_dev_desc_t **dev_desc,
138  					   disk_partition_t *info,
139  					   int allow_whole_dev)
140  { *dev_desc = NULL; return -1; }
141  #endif
142  
143  #ifdef CONFIG_MAC_PARTITION
144  /* disk/part_mac.c */
145  int get_partition_info_mac (block_dev_desc_t * dev_desc, int part, disk_partition_t *info);
146  void print_part_mac (block_dev_desc_t *dev_desc);
147  int   test_part_mac (block_dev_desc_t *dev_desc);
148  #endif
149  
150  #ifdef CONFIG_DOS_PARTITION
151  /* disk/part_dos.c */
152  int get_partition_info_dos (block_dev_desc_t * dev_desc, int part, disk_partition_t *info);
153  void print_part_dos (block_dev_desc_t *dev_desc);
154  int   test_part_dos (block_dev_desc_t *dev_desc);
155  #endif
156  
157  #ifdef CONFIG_ISO_PARTITION
158  /* disk/part_iso.c */
159  int get_partition_info_iso (block_dev_desc_t * dev_desc, int part, disk_partition_t *info);
160  void print_part_iso (block_dev_desc_t *dev_desc);
161  int   test_part_iso (block_dev_desc_t *dev_desc);
162  #endif
163  
164  #ifdef CONFIG_AMIGA_PARTITION
165  /* disk/part_amiga.c */
166  int get_partition_info_amiga (block_dev_desc_t * dev_desc, int part, disk_partition_t *info);
167  void print_part_amiga (block_dev_desc_t *dev_desc);
168  int   test_part_amiga (block_dev_desc_t *dev_desc);
169  #endif
170  
171  #ifdef CONFIG_EFI_PARTITION
172  #include <part_efi.h>
173  /* disk/part_efi.c */
174  int get_partition_info_efi (block_dev_desc_t * dev_desc, int part, disk_partition_t *info);
175  void print_part_efi (block_dev_desc_t *dev_desc);
176  int   test_part_efi (block_dev_desc_t *dev_desc);
177  
178  /**
179   * write_gpt_table() - Write the GUID Partition Table to disk
180   *
181   * @param dev_desc - block device descriptor
182   * @param gpt_h - pointer to GPT header representation
183   * @param gpt_e - pointer to GPT partition table entries
184   *
185   * @return - zero on success, otherwise error
186   */
187  int write_gpt_table(block_dev_desc_t *dev_desc,
188  		  gpt_header *gpt_h, gpt_entry *gpt_e);
189  
190  /**
191   * gpt_fill_pte(): Fill the GPT partition table entry
192   *
193   * @param gpt_h - GPT header representation
194   * @param gpt_e - GPT partition table entries
195   * @param partitions - list of partitions
196   * @param parts - number of partitions
197   *
198   * @return zero on success
199   */
200  int gpt_fill_pte(gpt_header *gpt_h, gpt_entry *gpt_e,
201  		disk_partition_t *partitions, int parts);
202  
203  /**
204   * gpt_fill_header(): Fill the GPT header
205   *
206   * @param dev_desc - block device descriptor
207   * @param gpt_h - GPT header representation
208   * @param str_guid - disk guid string representation
209   * @param parts_count - number of partitions
210   *
211   * @return - error on str_guid conversion error
212   */
213  int gpt_fill_header(block_dev_desc_t *dev_desc, gpt_header *gpt_h,
214  		char *str_guid, int parts_count);
215  
216  /**
217   * gpt_restore(): Restore GPT partition table
218   *
219   * @param dev_desc - block device descriptor
220   * @param str_disk_guid - disk GUID
221   * @param partitions - list of partitions
222   * @param parts - number of partitions
223   *
224   * @return zero on success
225   */
226  int gpt_restore(block_dev_desc_t *dev_desc, char *str_disk_guid,
227  		disk_partition_t *partitions, const int parts_count);
228  #endif
229  
230  #endif /* _PART_H */
231