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 struct mmc_internal_data { 33 /* RAW programming */ 34 unsigned int lba_start; 35 unsigned int lba_size; 36 unsigned int lba_blk_size; 37 38 /* FAT/EXT */ 39 unsigned int dev; 40 unsigned int part; 41 }; 42 43 struct nand_internal_data { 44 /* RAW programming */ 45 u64 start; 46 u64 size; 47 48 unsigned int dev; 49 unsigned int part; 50 /* for nand/ubi use */ 51 unsigned int ubi; 52 }; 53 54 static inline unsigned int get_mmc_blk_size(int dev) 55 { 56 return find_mmc_device(dev)->read_bl_len; 57 } 58 59 #define DFU_NAME_SIZE 32 60 #define DFU_CMD_BUF_SIZE 128 61 #ifndef CONFIG_SYS_DFU_DATA_BUF_SIZE 62 #define CONFIG_SYS_DFU_DATA_BUF_SIZE (1024*1024*8) /* 8 MiB */ 63 #endif 64 #ifndef CONFIG_SYS_DFU_MAX_FILE_SIZE 65 #define CONFIG_SYS_DFU_MAX_FILE_SIZE (4 << 20) /* 4 MiB */ 66 #endif 67 68 struct dfu_entity { 69 char name[DFU_NAME_SIZE]; 70 int alt; 71 void *dev_private; 72 int dev_num; 73 enum dfu_device_type dev_type; 74 enum dfu_layout layout; 75 76 union { 77 struct mmc_internal_data mmc; 78 struct nand_internal_data nand; 79 } data; 80 81 int (*read_medium)(struct dfu_entity *dfu, 82 u64 offset, void *buf, long *len); 83 84 int (*write_medium)(struct dfu_entity *dfu, 85 u64 offset, void *buf, long *len); 86 87 int (*flush_medium)(struct dfu_entity *dfu); 88 89 struct list_head list; 90 91 /* on the fly state */ 92 u32 crc; 93 u64 offset; 94 int i_blk_seq_num; 95 u8 *i_buf; 96 u8 *i_buf_start; 97 u8 *i_buf_end; 98 long r_left; 99 long b_left; 100 101 u32 bad_skip; /* for nand use */ 102 103 unsigned int inited:1; 104 }; 105 106 int dfu_config_entities(char *s, char *interface, int num); 107 void dfu_free_entities(void); 108 void dfu_show_entities(void); 109 int dfu_get_alt_number(void); 110 const char *dfu_get_dev_type(enum dfu_device_type t); 111 const char *dfu_get_layout(enum dfu_layout l); 112 struct dfu_entity *dfu_get_entity(int alt); 113 char *dfu_extract_token(char** e, int *n); 114 void dfu_trigger_reset(void); 115 bool dfu_reset(void); 116 117 int dfu_read(struct dfu_entity *de, void *buf, int size, int blk_seq_num); 118 int dfu_write(struct dfu_entity *de, void *buf, int size, int blk_seq_num); 119 /* Device specific */ 120 #ifdef CONFIG_DFU_MMC 121 extern int dfu_fill_entity_mmc(struct dfu_entity *dfu, char *s); 122 #else 123 static inline int dfu_fill_entity_mmc(struct dfu_entity *dfu, char *s) 124 { 125 puts("MMC support not available!\n"); 126 return -1; 127 } 128 #endif 129 130 #ifdef CONFIG_DFU_NAND 131 extern int dfu_fill_entity_nand(struct dfu_entity *dfu, char *s); 132 #else 133 static inline int dfu_fill_entity_nand(struct dfu_entity *dfu, char *s) 134 { 135 puts("NAND support not available!\n"); 136 return -1; 137 } 138 #endif 139 140 #endif /* __DFU_ENTITY_H_ */ 141