xref: /openbmc/u-boot/include/part.h (revision ae1768a72cf70c00eec6824a5cc9079b0a247640)
1 /*
2  * (C) Copyright 2000-2004
3  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4  *
5  * See file CREDITS for list of people who contributed to this
6  * project.
7  *
8  * This program is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU General Public License as
10  * published by the Free Software Foundation; either version 2 of
11  * the License, or (at your option) any later version.
12  *
13  * This program is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
16  * GNU General Public License for more details.
17  *
18  * You should have received a copy of the GNU General Public License
19  * along with this program; if not, write to the Free Software
20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
21  * MA 02111-1307 USA
22  */
23 #ifndef _PART_H
24 #define _PART_H
25 
26 #include <ide.h>
27 
28 typedef struct block_dev_desc {
29 	int		if_type;	/* type of the interface */
30 	int		dev;		/* device number */
31 	unsigned char	part_type;	/* partition type */
32 	unsigned char	target;		/* target SCSI ID */
33 	unsigned char	lun;		/* target LUN */
34 	unsigned char	type;		/* device type */
35 	unsigned char	removable;	/* removable device */
36 #ifdef CONFIG_LBA48
37 	unsigned char	lba48;		/* device can use 48bit addr (ATA/ATAPI v7) */
38 #endif
39 	lbaint_t	lba;		/* number of blocks */
40 	unsigned long	blksz;		/* block size */
41 	char		vendor [40+1];	/* IDE model, SCSI Vendor */
42 	char		product[20+1];	/* IDE Serial no, SCSI product */
43 	char		revision[8+1];	/* firmware revision */
44 	unsigned long	(*block_read)(int dev,
45 				      unsigned long start,
46 				      lbaint_t blkcnt,
47 				      void *buffer);
48 	unsigned long	(*block_write)(int dev,
49 				       unsigned long start,
50 				       lbaint_t blkcnt,
51 				       const void *buffer);
52 	unsigned long   (*block_erase)(int dev,
53 				       unsigned long start,
54 				       lbaint_t blkcnt);
55 	void		*priv;		/* driver private struct pointer */
56 }block_dev_desc_t;
57 
58 #define BLOCK_CNT(size, block_dev_desc) (PAD_COUNT(size, block_dev_desc->blksz))
59 #define PAD_TO_BLOCKSIZE(size, block_dev_desc) \
60 	(PAD_SIZE(size, block_dev_desc->blksz))
61 
62 /* Interface types: */
63 #define IF_TYPE_UNKNOWN		0
64 #define IF_TYPE_IDE		1
65 #define IF_TYPE_SCSI		2
66 #define IF_TYPE_ATAPI		3
67 #define IF_TYPE_USB		4
68 #define IF_TYPE_DOC		5
69 #define IF_TYPE_MMC		6
70 #define IF_TYPE_SD		7
71 #define IF_TYPE_SATA		8
72 
73 /* Part types */
74 #define PART_TYPE_UNKNOWN	0x00
75 #define PART_TYPE_MAC		0x01
76 #define PART_TYPE_DOS		0x02
77 #define PART_TYPE_ISO		0x03
78 #define PART_TYPE_AMIGA		0x04
79 #define PART_TYPE_EFI		0x05
80 
81 /*
82  * Type string for U-Boot bootable partitions
83  */
84 #define BOOT_PART_TYPE	"U-Boot"	/* primary boot partition type	*/
85 #define BOOT_PART_COMP	"PPCBoot"	/* PPCBoot compatibility type	*/
86 
87 /* device types */
88 #define DEV_TYPE_UNKNOWN	0xff	/* not connected */
89 #define DEV_TYPE_HARDDISK	0x00	/* harddisk */
90 #define DEV_TYPE_TAPE		0x01	/* Tape */
91 #define DEV_TYPE_CDROM		0x05	/* CD-ROM */
92 #define DEV_TYPE_OPDISK		0x07	/* optical disk */
93 
94 typedef struct disk_partition {
95 	ulong	start;		/* # of first block in partition	*/
96 	ulong	size;		/* number of blocks in partition	*/
97 	ulong	blksz;		/* block size in bytes			*/
98 	uchar	name[32];	/* partition name			*/
99 	uchar	type[32];	/* string type description		*/
100 	int	bootable;	/* Active/Bootable flag is set		*/
101 #ifdef CONFIG_PARTITION_UUIDS
102 	char	uuid[37];	/* filesystem UUID as string, if exists	*/
103 #endif
104 } disk_partition_t;
105 
106 /* Misc _get_dev functions */
107 #ifdef CONFIG_PARTITIONS
108 block_dev_desc_t *get_dev(const char *ifname, int dev);
109 block_dev_desc_t* ide_get_dev(int dev);
110 block_dev_desc_t* sata_get_dev(int dev);
111 block_dev_desc_t* scsi_get_dev(int dev);
112 block_dev_desc_t* usb_stor_get_dev(int dev);
113 block_dev_desc_t* mmc_get_dev(int dev);
114 block_dev_desc_t* systemace_get_dev(int dev);
115 block_dev_desc_t* mg_disk_get_dev(int dev);
116 
117 /* disk/part.c */
118 int get_partition_info (block_dev_desc_t * dev_desc, int part, disk_partition_t *info);
119 void print_part (block_dev_desc_t *dev_desc);
120 void  init_part (block_dev_desc_t *dev_desc);
121 void dev_print(block_dev_desc_t *dev_desc);
122 int get_device(const char *ifname, const char *dev_str,
123 	       block_dev_desc_t **dev_desc);
124 int get_device_and_partition(const char *ifname, const char *dev_part_str,
125 			     block_dev_desc_t **dev_desc,
126 			     disk_partition_t *info, int allow_whole_dev);
127 #else
128 static inline block_dev_desc_t *get_dev(const char *ifname, int dev)
129 { return NULL; }
130 static inline block_dev_desc_t* ide_get_dev(int dev) { return NULL; }
131 static inline block_dev_desc_t* sata_get_dev(int dev) { return NULL; }
132 static inline block_dev_desc_t* scsi_get_dev(int dev) { return NULL; }
133 static inline block_dev_desc_t* usb_stor_get_dev(int dev) { return NULL; }
134 static inline block_dev_desc_t* mmc_get_dev(int dev) { return NULL; }
135 static inline block_dev_desc_t* systemace_get_dev(int dev) { return NULL; }
136 static inline block_dev_desc_t* mg_disk_get_dev(int dev) { return NULL; }
137 
138 static inline int get_partition_info (block_dev_desc_t * dev_desc, int part,
139 	disk_partition_t *info) { return -1; }
140 static inline void print_part (block_dev_desc_t *dev_desc) {}
141 static inline void  init_part (block_dev_desc_t *dev_desc) {}
142 static inline void dev_print(block_dev_desc_t *dev_desc) {}
143 static inline int get_device(const char *ifname, const char *dev_str,
144 	       block_dev_desc_t **dev_desc)
145 { return -1; }
146 static inline int get_device_and_partition(const char *ifname,
147 					   const char *dev_part_str,
148 					   block_dev_desc_t **dev_desc,
149 					   disk_partition_t *info,
150 					   int allow_whole_dev)
151 { *dev_desc = NULL; return -1; }
152 #endif
153 
154 #ifdef CONFIG_MAC_PARTITION
155 /* disk/part_mac.c */
156 int get_partition_info_mac (block_dev_desc_t * dev_desc, int part, disk_partition_t *info);
157 void print_part_mac (block_dev_desc_t *dev_desc);
158 int   test_part_mac (block_dev_desc_t *dev_desc);
159 #endif
160 
161 #ifdef CONFIG_DOS_PARTITION
162 /* disk/part_dos.c */
163 int get_partition_info_dos (block_dev_desc_t * dev_desc, int part, disk_partition_t *info);
164 void print_part_dos (block_dev_desc_t *dev_desc);
165 int   test_part_dos (block_dev_desc_t *dev_desc);
166 #endif
167 
168 #ifdef CONFIG_ISO_PARTITION
169 /* disk/part_iso.c */
170 int get_partition_info_iso (block_dev_desc_t * dev_desc, int part, disk_partition_t *info);
171 void print_part_iso (block_dev_desc_t *dev_desc);
172 int   test_part_iso (block_dev_desc_t *dev_desc);
173 #endif
174 
175 #ifdef CONFIG_AMIGA_PARTITION
176 /* disk/part_amiga.c */
177 int get_partition_info_amiga (block_dev_desc_t * dev_desc, int part, disk_partition_t *info);
178 void print_part_amiga (block_dev_desc_t *dev_desc);
179 int   test_part_amiga (block_dev_desc_t *dev_desc);
180 #endif
181 
182 #ifdef CONFIG_EFI_PARTITION
183 #include <part_efi.h>
184 /* disk/part_efi.c */
185 int get_partition_info_efi (block_dev_desc_t * dev_desc, int part, disk_partition_t *info);
186 void print_part_efi (block_dev_desc_t *dev_desc);
187 int   test_part_efi (block_dev_desc_t *dev_desc);
188 
189 /**
190  * write_gpt_table() - Write the GUID Partition Table to disk
191  *
192  * @param dev_desc - block device descriptor
193  * @param gpt_h - pointer to GPT header representation
194  * @param gpt_e - pointer to GPT partition table entries
195  *
196  * @return - zero on success, otherwise error
197  */
198 int write_gpt_table(block_dev_desc_t *dev_desc,
199 		  gpt_header *gpt_h, gpt_entry *gpt_e);
200 
201 /**
202  * gpt_fill_pte(): Fill the GPT partition table entry
203  *
204  * @param gpt_h - GPT header representation
205  * @param gpt_e - GPT partition table entries
206  * @param partitions - list of partitions
207  * @param parts - number of partitions
208  *
209  * @return zero on success
210  */
211 int gpt_fill_pte(gpt_header *gpt_h, gpt_entry *gpt_e,
212 		disk_partition_t *partitions, int parts);
213 
214 /**
215  * gpt_fill_header(): Fill the GPT header
216  *
217  * @param dev_desc - block device descriptor
218  * @param gpt_h - GPT header representation
219  * @param str_guid - disk guid string representation
220  * @param parts_count - number of partitions
221  *
222  * @return - error on str_guid conversion error
223  */
224 int gpt_fill_header(block_dev_desc_t *dev_desc, gpt_header *gpt_h,
225 		char *str_guid, int parts_count);
226 
227 /**
228  * gpt_restore(): Restore GPT partition table
229  *
230  * @param dev_desc - block device descriptor
231  * @param str_disk_guid - disk GUID
232  * @param partitions - list of partitions
233  * @param parts - number of partitions
234  *
235  * @return zero on success
236  */
237 int gpt_restore(block_dev_desc_t *dev_desc, char *str_disk_guid,
238 		disk_partition_t *partitions, const int parts_count);
239 #endif
240 
241 #endif /* _PART_H */
242