1 /* 2 * dfu.h - DFU flashable area description 3 * 4 * Copyright (C) 2012 Samsung Electronics 5 * authors: Andrzej Pietrasiewicz <andrzej.p@samsung.com> 6 * Lukasz Majewski <l.majewski@samsung.com> 7 * 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License as published by 10 * the Free Software Foundation; either version 2 of the License, or 11 * (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, MA 02111-1307 USA 21 */ 22 23 #ifndef __DFU_ENTITY_H_ 24 #define __DFU_ENTITY_H_ 25 26 #include <common.h> 27 #include <linux/list.h> 28 #include <mmc.h> 29 30 enum dfu_device_type { 31 DFU_DEV_MMC = 1, 32 DFU_DEV_ONENAND, 33 DFU_DEV_NAND, 34 }; 35 36 enum dfu_layout { 37 DFU_RAW_ADDR = 1, 38 DFU_FS_FAT, 39 DFU_FS_EXT2, 40 DFU_FS_EXT3, 41 DFU_FS_EXT4, 42 }; 43 44 struct mmc_internal_data { 45 /* RAW programming */ 46 unsigned int lba_start; 47 unsigned int lba_size; 48 unsigned int lba_blk_size; 49 50 /* FAT/EXT */ 51 unsigned int dev; 52 unsigned int part; 53 }; 54 55 struct nand_internal_data { 56 /* RAW programming */ 57 u64 start; 58 u64 size; 59 60 unsigned int dev; 61 unsigned int part; 62 }; 63 64 static inline unsigned int get_mmc_blk_size(int dev) 65 { 66 return find_mmc_device(dev)->read_bl_len; 67 } 68 69 #define DFU_NAME_SIZE 32 70 #define DFU_CMD_BUF_SIZE 128 71 #define DFU_DATA_BUF_SIZE (1024*1024*8) /* 8 MiB */ 72 #ifndef CONFIG_SYS_DFU_MAX_FILE_SIZE 73 #define CONFIG_SYS_DFU_MAX_FILE_SIZE (4 << 20) /* 4 MiB */ 74 #endif 75 76 struct dfu_entity { 77 char name[DFU_NAME_SIZE]; 78 int alt; 79 void *dev_private; 80 int dev_num; 81 enum dfu_device_type dev_type; 82 enum dfu_layout layout; 83 84 union { 85 struct mmc_internal_data mmc; 86 struct nand_internal_data nand; 87 } data; 88 89 int (*read_medium)(struct dfu_entity *dfu, 90 u64 offset, void *buf, long *len); 91 92 int (*write_medium)(struct dfu_entity *dfu, 93 u64 offset, void *buf, long *len); 94 95 int (*flush_medium)(struct dfu_entity *dfu); 96 97 struct list_head list; 98 99 /* on the fly state */ 100 u32 crc; 101 u64 offset; 102 int i_blk_seq_num; 103 u8 *i_buf; 104 u8 *i_buf_start; 105 u8 *i_buf_end; 106 long r_left; 107 long b_left; 108 109 u32 bad_skip; /* for nand use */ 110 111 unsigned int inited:1; 112 }; 113 114 int dfu_config_entities(char *s, char *interface, int num); 115 void dfu_free_entities(void); 116 void dfu_show_entities(void); 117 int dfu_get_alt_number(void); 118 const char *dfu_get_dev_type(enum dfu_device_type t); 119 const char *dfu_get_layout(enum dfu_layout l); 120 struct dfu_entity *dfu_get_entity(int alt); 121 char *dfu_extract_token(char** e, int *n); 122 123 int dfu_read(struct dfu_entity *de, void *buf, int size, int blk_seq_num); 124 int dfu_write(struct dfu_entity *de, void *buf, int size, int blk_seq_num); 125 /* Device specific */ 126 #ifdef CONFIG_DFU_MMC 127 extern int dfu_fill_entity_mmc(struct dfu_entity *dfu, char *s); 128 #else 129 static inline int dfu_fill_entity_mmc(struct dfu_entity *dfu, char *s) 130 { 131 puts("MMC support not available!\n"); 132 return -1; 133 } 134 #endif 135 136 #ifdef CONFIG_DFU_NAND 137 extern int dfu_fill_entity_nand(struct dfu_entity *dfu, char *s); 138 #else 139 static inline int dfu_fill_entity_nand(struct dfu_entity *dfu, char *s) 140 { 141 puts("NAND support not available!\n"); 142 return -1; 143 } 144 #endif 145 146 #endif /* __DFU_ENTITY_H_ */ 147