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