include/dfu.h

   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 <spi_flash.h>
  18 #include <linux/usb/composite.h>
  19
  20 enum dfu_device_type {
  21         DFU_DEV_MMC = 1,
  22         DFU_DEV_ONENAND,
  23         DFU_DEV_NAND,
  24         DFU_DEV_RAM,
  25         DFU_DEV_SF,
  26 };
  27
  28 enum dfu_layout {
  29         DFU_RAW_ADDR = 1,
  30         DFU_FS_FAT,
  31         DFU_FS_EXT2,
  32         DFU_FS_EXT3,
  33         DFU_FS_EXT4,
  34         DFU_RAM_ADDR,
  35 };
  36
  37 enum dfu_op {
  38         DFU_OP_READ = 1,
  39         DFU_OP_WRITE,
  40         DFU_OP_SIZE,
  41 };
  42
  43 struct mmc_internal_data {
  44         int dev_num;
  45
  46         /* RAW programming */
  47         unsigned int lba_start;
  48         unsigned int lba_size;
  49         unsigned int lba_blk_size;
  50
  51         /* eMMC HW partition access */
  52         int hw_partition;
  53
  54         /* FAT/EXT */
  55         unsigned int dev;
  56         unsigned int part;
  57 };
  58
  59 struct nand_internal_data {
  60         /* RAW programming */
  61         u64 start;
  62         u64 size;
  63
  64         unsigned int dev;
  65         unsigned int part;
  66         /* for nand/ubi use */
  67         unsigned int ubi;
  68 };
  69
  70 struct ram_internal_data {
  71         void            *start;
  72         unsigned int    size;
  73 };
  74
  75 struct sf_internal_data {
  76         struct spi_flash *dev;
  77
  78         /* RAW programming */
  79         u64 start;
  80         u64 size;
  81 };
  82
  83 #define DFU_NAME_SIZE                   32
  84 #define DFU_CMD_BUF_SIZE                128
  85 #ifndef CONFIG_SYS_DFU_DATA_BUF_SIZE
  86 #define CONFIG_SYS_DFU_DATA_BUF_SIZE            (1024*1024*8)   /* 8 MiB */
  87 #endif
  88 #ifndef CONFIG_SYS_DFU_MAX_FILE_SIZE
  89 #define CONFIG_SYS_DFU_MAX_FILE_SIZE CONFIG_SYS_DFU_DATA_BUF_SIZE
  90 #endif
  91 #ifndef DFU_DEFAULT_POLL_TIMEOUT
  92 #define DFU_DEFAULT_POLL_TIMEOUT 0
  93 #endif
  94 #ifndef DFU_MANIFEST_POLL_TIMEOUT
  95 #define DFU_MANIFEST_POLL_TIMEOUT       DFU_DEFAULT_POLL_TIMEOUT
  96 #endif
  97
  98 struct dfu_entity {
  99         char                    name[DFU_NAME_SIZE];
 100         int                     alt;
 101         void                    *dev_private;
 102         enum dfu_device_type    dev_type;
 103         enum dfu_layout         layout;
 104         unsigned long           max_buf_size;
 105
 106         union {
 107                 struct mmc_internal_data mmc;
 108                 struct nand_internal_data nand;
 109                 struct ram_internal_data ram;
 110                 struct sf_internal_data sf;
 111         } data;
 112
 113         long (*get_medium_size)(struct dfu_entity *dfu);
 114
 115         int (*read_medium)(struct dfu_entity *dfu,
 116                         u64 offset, void *buf, long *len);
 117
 118         int (*write_medium)(struct dfu_entity *dfu,
 119                         u64 offset, void *buf, long *len);
 120
 121         int (*flush_medium)(struct dfu_entity *dfu);
 122         unsigned int (*poll_timeout)(struct dfu_entity *dfu);
 123
 124         void (*free_entity)(struct dfu_entity *dfu);
 125
 126         struct list_head list;
 127
 128         /* on the fly state */
 129         u32 crc;
 130         u64 offset;
 131         int i_blk_seq_num;
 132         u8 *i_buf;
 133         u8 *i_buf_start;
 134         u8 *i_buf_end;
 135         long r_left;
 136         long b_left;
 137
 138         u32 bad_skip;   /* for nand use */
 139
 140         unsigned int inited:1;
 141 };
 142
 143 #ifdef CONFIG_SET_DFU_ALT_INFO
 144 void set_dfu_alt_info(char *interface, char *devstr);
 145 #endif
 146 int dfu_config_entities(char *s, char *interface, char *devstr);
 147 void dfu_free_entities(void);
 148 void dfu_show_entities(void);
 149 int dfu_get_alt_number(void);
 150 const char *dfu_get_dev_type(enum dfu_device_type t);
 151 const char *dfu_get_layout(enum dfu_layout l);
 152 struct dfu_entity *dfu_get_entity(int alt);
 153 char *dfu_extract_token(char** e, int *n);
 154 void dfu_trigger_reset(void);
 155 int dfu_get_alt(char *name);
 156 int dfu_init_env_entities(char *interface, char *devstr);
 157 unsigned char *dfu_get_buf(struct dfu_entity *dfu);
 158 unsigned char *dfu_free_buf(void);
 159 unsigned long dfu_get_buf_size(void);
 160 bool dfu_usb_get_reset(void);
 161
 162 int dfu_read(struct dfu_entity *de, void *buf, int size, int blk_seq_num);
 163 int dfu_write(struct dfu_entity *de, void *buf, int size, int blk_seq_num);
 164 int dfu_flush(struct dfu_entity *de, void *buf, int size, int blk_seq_num);
 165
 166 /*
 167  * dfu_defer_flush - pointer to store dfu_entity for deferred flashing.
 168  *                   It should be NULL when not used.
 169  */
 170 extern struct dfu_entity *dfu_defer_flush;
 171 /**
 172  * dfu_get_defer_flush - get current value of dfu_defer_flush pointer
 173  *
 174  * @return - value of the dfu_defer_flush pointer
 175  */
 176 static inline struct dfu_entity *dfu_get_defer_flush(void)
 177 {
 178         return dfu_defer_flush;
 179 }
 180
 181 /**
 182  * dfu_set_defer_flush - set the dfu_defer_flush pointer
 183  *
 184  * @param dfu - pointer to the dfu_entity, which should be written
 185  */
 186 static inline void dfu_set_defer_flush(struct dfu_entity *dfu)
 187 {
 188         dfu_defer_flush = dfu;
 189 }
 190
 191 /**
 192  * dfu_write_from_mem_addr - write data from memory to DFU managed medium
 193  *
 194  * This function adds support for writing data starting from fixed memory
 195  * address (like $loadaddr) to dfu managed medium (e.g. NAND, MMC, file system)
 196  *
 197  * @param dfu - dfu entity to which we want to store data
 198  * @param buf - fixed memory addres from where data starts
 199  * @param size - number of bytes to write
 200  *
 201  * @return - 0 on success, other value on failure
 202  */
 203 int dfu_write_from_mem_addr(struct dfu_entity *dfu, void *buf, int size);
 204
 205 /* Device specific */
 206 #ifdef CONFIG_DFU_MMC
 207 extern int dfu_fill_entity_mmc(struct dfu_entity *dfu, char *devstr, char *s);
 208 #else
 209 static inline int dfu_fill_entity_mmc(struct dfu_entity *dfu, char *devstr,
 210                                       char *s)
 211 {
 212         puts("MMC support not available!\n");
 213         return -1;
 214 }
 215 #endif
 216
 217 #ifdef CONFIG_DFU_NAND
 218 extern int dfu_fill_entity_nand(struct dfu_entity *dfu, char *devstr, char *s);
 219 #else
 220 static inline int dfu_fill_entity_nand(struct dfu_entity *dfu, char *devstr,
 221                                        char *s)
 222 {
 223         puts("NAND support not available!\n");
 224         return -1;
 225 }
 226 #endif
 227
 228 #ifdef CONFIG_DFU_RAM
 229 extern int dfu_fill_entity_ram(struct dfu_entity *dfu, char *devstr, char *s);
 230 #else
 231 static inline int dfu_fill_entity_ram(struct dfu_entity *dfu, char *devstr,
 232                                       char *s)
 233 {
 234         puts("RAM support not available!\n");
 235         return -1;
 236 }
 237 #endif
 238
 239 #ifdef CONFIG_DFU_SF
 240 extern int dfu_fill_entity_sf(struct dfu_entity *dfu, char *devstr, char *s);
 241 #else
 242 static inline int dfu_fill_entity_sf(struct dfu_entity *dfu, char *devstr,
 243                                      char *s)
 244 {
 245         puts("SF support not available!\n");
 246         return -1;
 247 }
 248 #endif
 249
 250 /**
 251  * dfu_tftp_write - Write TFTP data to DFU medium
 252  *
 253  * This function is storing data received via TFTP on DFU supported medium.
 254  *
 255  * @param dfu_entity_name - name of DFU entity to write
 256  * @param addr - address of data buffer to write
 257  * @param len - number of bytes
 258  * @param interface - destination DFU medium (e.g. "mmc")
 259  * @param devstring - instance number of destination DFU medium (e.g. "1")
 260  *
 261  * @return 0 on success, otherwise error code
 262  */
 263 #ifdef CONFIG_DFU_TFTP
 264 int dfu_tftp_write(char *dfu_entity_name, unsigned int addr, unsigned int len,
 265                    char *interface, char *devstring);
 266 #else
 267 static inline int dfu_tftp_write(char *dfu_entity_name, unsigned int addr,
 268                                  unsigned int len, char *interface,
 269                                  char *devstring)
 270 {
 271         puts("TFTP write support for DFU not available!\n");
 272         return -ENOSYS;
 273 }
 274 #endif
 275
 276 int dfu_add(struct usb_configuration *c);
 277 #endif /* __DFU_ENTITY_H_ */