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 #include <linux/usb/composite.h> 18 19 enum dfu_device_type { 20 DFU_DEV_MMC = 1, 21 DFU_DEV_ONENAND, 22 DFU_DEV_NAND, 23 DFU_DEV_RAM, 24 }; 25 26 enum dfu_layout { 27 DFU_RAW_ADDR = 1, 28 DFU_FS_FAT, 29 DFU_FS_EXT2, 30 DFU_FS_EXT3, 31 DFU_FS_EXT4, 32 DFU_RAM_ADDR, 33 }; 34 35 enum dfu_op { 36 DFU_OP_READ = 1, 37 DFU_OP_WRITE, 38 }; 39 40 struct mmc_internal_data { 41 /* RAW programming */ 42 unsigned int lba_start; 43 unsigned int lba_size; 44 unsigned int lba_blk_size; 45 46 /* FAT/EXT */ 47 unsigned int dev; 48 unsigned int part; 49 }; 50 51 struct nand_internal_data { 52 /* RAW programming */ 53 u64 start; 54 u64 size; 55 56 unsigned int dev; 57 unsigned int part; 58 /* for nand/ubi use */ 59 unsigned int ubi; 60 }; 61 62 struct ram_internal_data { 63 void *start; 64 unsigned int size; 65 }; 66 67 static inline unsigned int get_mmc_blk_size(int dev) 68 { 69 return find_mmc_device(dev)->read_bl_len; 70 } 71 72 #define DFU_NAME_SIZE 32 73 #define DFU_CMD_BUF_SIZE 128 74 #ifndef CONFIG_SYS_DFU_DATA_BUF_SIZE 75 #define CONFIG_SYS_DFU_DATA_BUF_SIZE (1024*1024*8) /* 8 MiB */ 76 #endif 77 #ifndef CONFIG_SYS_DFU_MAX_FILE_SIZE 78 #define CONFIG_SYS_DFU_MAX_FILE_SIZE CONFIG_SYS_DFU_DATA_BUF_SIZE 79 #endif 80 81 struct dfu_entity { 82 char name[DFU_NAME_SIZE]; 83 int alt; 84 void *dev_private; 85 int dev_num; 86 enum dfu_device_type dev_type; 87 enum dfu_layout layout; 88 89 union { 90 struct mmc_internal_data mmc; 91 struct nand_internal_data nand; 92 struct ram_internal_data ram; 93 } data; 94 95 int (*read_medium)(struct dfu_entity *dfu, 96 u64 offset, void *buf, long *len); 97 98 int (*write_medium)(struct dfu_entity *dfu, 99 u64 offset, void *buf, long *len); 100 101 int (*flush_medium)(struct dfu_entity *dfu); 102 103 struct list_head list; 104 105 /* on the fly state */ 106 u32 crc; 107 u64 offset; 108 int i_blk_seq_num; 109 u8 *i_buf; 110 u8 *i_buf_start; 111 u8 *i_buf_end; 112 long r_left; 113 long b_left; 114 115 u32 bad_skip; /* for nand use */ 116 117 unsigned int inited:1; 118 }; 119 120 int dfu_config_entities(char *s, char *interface, int num); 121 void dfu_free_entities(void); 122 void dfu_show_entities(void); 123 int dfu_get_alt_number(void); 124 const char *dfu_get_dev_type(enum dfu_device_type t); 125 const char *dfu_get_layout(enum dfu_layout l); 126 struct dfu_entity *dfu_get_entity(int alt); 127 char *dfu_extract_token(char** e, int *n); 128 void dfu_trigger_reset(void); 129 int dfu_get_alt(char *name); 130 bool dfu_reset(void); 131 int dfu_init_env_entities(char *interface, int dev); 132 unsigned char *dfu_get_buf(void); 133 unsigned char *dfu_free_buf(void); 134 135 int dfu_read(struct dfu_entity *de, void *buf, int size, int blk_seq_num); 136 int dfu_write(struct dfu_entity *de, void *buf, int size, int blk_seq_num); 137 /* Device specific */ 138 #ifdef CONFIG_DFU_MMC 139 extern int dfu_fill_entity_mmc(struct dfu_entity *dfu, char *s); 140 #else 141 static inline int dfu_fill_entity_mmc(struct dfu_entity *dfu, char *s) 142 { 143 puts("MMC support not available!\n"); 144 return -1; 145 } 146 #endif 147 148 #ifdef CONFIG_DFU_NAND 149 extern int dfu_fill_entity_nand(struct dfu_entity *dfu, char *s); 150 #else 151 static inline int dfu_fill_entity_nand(struct dfu_entity *dfu, char *s) 152 { 153 puts("NAND support not available!\n"); 154 return -1; 155 } 156 #endif 157 158 #ifdef CONFIG_DFU_RAM 159 extern int dfu_fill_entity_ram(struct dfu_entity *dfu, char *s); 160 #else 161 static inline int dfu_fill_entity_ram(struct dfu_entity *dfu, char *s) 162 { 163 puts("RAM support not available!\n"); 164 return -1; 165 } 166 #endif 167 168 #ifdef CONFIG_DFU_FUNCTION 169 int dfu_add(struct usb_configuration *c); 170 #else 171 int dfu_add(struct usb_configuration *c) 172 { 173 return 0; 174 } 175 #endif 176 #endif /* __DFU_ENTITY_H_ */ 177