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 }; 23 24 enum dfu_layout { 25 DFU_RAW_ADDR = 1, 26 DFU_FS_FAT, 27 DFU_FS_EXT2, 28 DFU_FS_EXT3, 29 DFU_FS_EXT4, 30 }; 31 32 enum dfu_op { 33 DFU_OP_READ = 1, 34 DFU_OP_WRITE, 35 }; 36 37 struct mmc_internal_data { 38 /* RAW programming */ 39 unsigned int lba_start; 40 unsigned int lba_size; 41 unsigned int lba_blk_size; 42 43 /* FAT/EXT */ 44 unsigned int dev; 45 unsigned int part; 46 }; 47 48 struct nand_internal_data { 49 /* RAW programming */ 50 u64 start; 51 u64 size; 52 53 unsigned int dev; 54 unsigned int part; 55 /* for nand/ubi use */ 56 unsigned int ubi; 57 }; 58 59 static inline unsigned int get_mmc_blk_size(int dev) 60 { 61 return find_mmc_device(dev)->read_bl_len; 62 } 63 64 #define DFU_NAME_SIZE 32 65 #define DFU_CMD_BUF_SIZE 128 66 #ifndef CONFIG_SYS_DFU_DATA_BUF_SIZE 67 #define CONFIG_SYS_DFU_DATA_BUF_SIZE (1024*1024*8) /* 8 MiB */ 68 #endif 69 #ifndef CONFIG_SYS_DFU_MAX_FILE_SIZE 70 #define CONFIG_SYS_DFU_MAX_FILE_SIZE CONFIG_SYS_DFU_DATA_BUF_SIZE 71 #endif 72 73 struct dfu_entity { 74 char name[DFU_NAME_SIZE]; 75 int alt; 76 void *dev_private; 77 int dev_num; 78 enum dfu_device_type dev_type; 79 enum dfu_layout layout; 80 81 union { 82 struct mmc_internal_data mmc; 83 struct nand_internal_data nand; 84 } data; 85 86 int (*read_medium)(struct dfu_entity *dfu, 87 u64 offset, void *buf, long *len); 88 89 int (*write_medium)(struct dfu_entity *dfu, 90 u64 offset, void *buf, long *len); 91 92 int (*flush_medium)(struct dfu_entity *dfu); 93 94 struct list_head list; 95 96 /* on the fly state */ 97 u32 crc; 98 u64 offset; 99 int i_blk_seq_num; 100 u8 *i_buf; 101 u8 *i_buf_start; 102 u8 *i_buf_end; 103 long r_left; 104 long b_left; 105 106 u32 bad_skip; /* for nand use */ 107 108 unsigned int inited:1; 109 }; 110 111 int dfu_config_entities(char *s, char *interface, int num); 112 void dfu_free_entities(void); 113 void dfu_show_entities(void); 114 int dfu_get_alt_number(void); 115 const char *dfu_get_dev_type(enum dfu_device_type t); 116 const char *dfu_get_layout(enum dfu_layout l); 117 struct dfu_entity *dfu_get_entity(int alt); 118 char *dfu_extract_token(char** e, int *n); 119 void dfu_trigger_reset(void); 120 bool dfu_reset(void); 121 int dfu_init_env_entities(char *interface, int dev); 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