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 * SPDX-License-Identifier: GPL-2.0+ 9 */ 10 11 #ifndef __DFU_ENTITY_H_ 12 #define __DFU_ENTITY_H_ 13 14 #include <common.h> 15 #include <linux/list.h> 16 #include <mmc.h> 17 18 enum dfu_device_type { 19 DFU_DEV_MMC = 1, 20 DFU_DEV_ONENAND, 21 DFU_DEV_NAND, 22 DFU_DEV_RAM, 23 }; 24 25 enum dfu_layout { 26 DFU_RAW_ADDR = 1, 27 DFU_FS_FAT, 28 DFU_FS_EXT2, 29 DFU_FS_EXT3, 30 DFU_FS_EXT4, 31 DFU_RAM_ADDR, 32 }; 33 34 enum dfu_op { 35 DFU_OP_READ = 1, 36 DFU_OP_WRITE, 37 }; 38 39 struct mmc_internal_data { 40 /* RAW programming */ 41 unsigned int lba_start; 42 unsigned int lba_size; 43 unsigned int lba_blk_size; 44 45 /* FAT/EXT */ 46 unsigned int dev; 47 unsigned int part; 48 }; 49 50 struct nand_internal_data { 51 /* RAW programming */ 52 u64 start; 53 u64 size; 54 55 unsigned int dev; 56 unsigned int part; 57 /* for nand/ubi use */ 58 unsigned int ubi; 59 }; 60 61 struct ram_internal_data { 62 void *start; 63 unsigned int size; 64 }; 65 66 static inline unsigned int get_mmc_blk_size(int dev) 67 { 68 return find_mmc_device(dev)->read_bl_len; 69 } 70 71 #define DFU_NAME_SIZE 32 72 #define DFU_CMD_BUF_SIZE 128 73 #ifndef CONFIG_SYS_DFU_DATA_BUF_SIZE 74 #define CONFIG_SYS_DFU_DATA_BUF_SIZE (1024*1024*8) /* 8 MiB */ 75 #endif 76 #ifndef CONFIG_SYS_DFU_MAX_FILE_SIZE 77 #define CONFIG_SYS_DFU_MAX_FILE_SIZE CONFIG_SYS_DFU_DATA_BUF_SIZE 78 #endif 79 80 struct dfu_entity { 81 char name[DFU_NAME_SIZE]; 82 int alt; 83 void *dev_private; 84 int dev_num; 85 enum dfu_device_type dev_type; 86 enum dfu_layout layout; 87 88 union { 89 struct mmc_internal_data mmc; 90 struct nand_internal_data nand; 91 struct ram_internal_data ram; 92 } data; 93 94 int (*read_medium)(struct dfu_entity *dfu, 95 u64 offset, void *buf, long *len); 96 97 int (*write_medium)(struct dfu_entity *dfu, 98 u64 offset, void *buf, long *len); 99 100 int (*flush_medium)(struct dfu_entity *dfu); 101 102 struct list_head list; 103 104 /* on the fly state */ 105 u32 crc; 106 u64 offset; 107 int i_blk_seq_num; 108 u8 *i_buf; 109 u8 *i_buf_start; 110 u8 *i_buf_end; 111 long r_left; 112 long b_left; 113 114 u32 bad_skip; /* for nand use */ 115 116 unsigned int inited:1; 117 }; 118 119 int dfu_config_entities(char *s, char *interface, int num); 120 void dfu_free_entities(void); 121 void dfu_show_entities(void); 122 int dfu_get_alt_number(void); 123 const char *dfu_get_dev_type(enum dfu_device_type t); 124 const char *dfu_get_layout(enum dfu_layout l); 125 struct dfu_entity *dfu_get_entity(int alt); 126 char *dfu_extract_token(char** e, int *n); 127 void dfu_trigger_reset(void); 128 bool dfu_reset(void); 129 int dfu_init_env_entities(char *interface, int dev); 130 131 int dfu_read(struct dfu_entity *de, void *buf, int size, int blk_seq_num); 132 int dfu_write(struct dfu_entity *de, void *buf, int size, int blk_seq_num); 133 /* Device specific */ 134 #ifdef CONFIG_DFU_MMC 135 extern int dfu_fill_entity_mmc(struct dfu_entity *dfu, char *s); 136 #else 137 static inline int dfu_fill_entity_mmc(struct dfu_entity *dfu, char *s) 138 { 139 puts("MMC support not available!\n"); 140 return -1; 141 } 142 #endif 143 144 #ifdef CONFIG_DFU_NAND 145 extern int dfu_fill_entity_nand(struct dfu_entity *dfu, char *s); 146 #else 147 static inline int dfu_fill_entity_nand(struct dfu_entity *dfu, char *s) 148 { 149 puts("NAND support not available!\n"); 150 return -1; 151 } 152 #endif 153 154 #ifdef CONFIG_DFU_RAM 155 extern int dfu_fill_entity_ram(struct dfu_entity *dfu, char *s); 156 #else 157 static inline int dfu_fill_entity_ram(struct dfu_entity *dfu, char *s) 158 { 159 puts("RAM support not available!\n"); 160 return -1; 161 } 162 #endif 163 164 #endif /* __DFU_ENTITY_H_ */ 165