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  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  21  */
  22
  23 #ifndef __DFU_ENTITY_H_
  24 #define __DFU_ENTITY_H_
  25
  26 #include <common.h>
  27 #include <linux/list.h>
  28 #include <mmc.h>
  29
  30 enum dfu_device_type {
  31         DFU_DEV_MMC = 1,
  32         DFU_DEV_ONENAND,
  33         DFU_DEV_NAND,
  34 };
  35
  36 enum dfu_layout {
  37         DFU_RAW_ADDR = 1,
  38         DFU_FS_FAT,
  39         DFU_FS_EXT2,
  40         DFU_FS_EXT3,
  41         DFU_FS_EXT4,
  42 };
  43
  44 struct mmc_internal_data {
  45         /* RAW programming */
  46         unsigned int lba_start;
  47         unsigned int lba_size;
  48         unsigned int lba_blk_size;
  49
  50         /* FAT/EXT */
  51         unsigned int dev;
  52         unsigned int part;
  53 };
  54
  55 static inline unsigned int get_mmc_blk_size(int dev)
  56 {
  57         return find_mmc_device(dev)->read_bl_len;
  58 }
  59
  60 #define DFU_NAME_SIZE 32
  61 #define DFU_CMD_BUF_SIZE 128
  62 #define DFU_DATA_BUF_SIZE (1024*1024*8) /* 8 MiB */
  63
  64 struct dfu_entity {
  65         char                    name[DFU_NAME_SIZE];
  66         int                     alt;
  67         void                    *dev_private;
  68         int                     dev_num;
  69         enum dfu_device_type    dev_type;
  70         enum dfu_layout         layout;
  71
  72         union {
  73                 struct mmc_internal_data mmc;
  74         } data;
  75
  76         int (*read_medium)(struct dfu_entity *dfu, void *buf, long *len);
  77         int (*write_medium)(struct dfu_entity *dfu, void *buf, long *len);
  78
  79         struct list_head list;
  80 };
  81
  82 int dfu_config_entities(char *s, char *interface, int num);
  83 void dfu_free_entities(void);
  84 void dfu_show_entities(void);
  85 int dfu_get_alt_number(void);
  86 const char *dfu_get_dev_type(enum dfu_device_type t);
  87 const char *dfu_get_layout(enum dfu_layout l);
  88 struct dfu_entity *dfu_get_entity(int alt);
  89 char *dfu_extract_token(char** e, int *n);
  90
  91 int dfu_read(struct dfu_entity *de, void *buf, int size, int blk_seq_num);
  92 int dfu_write(struct dfu_entity *de, void *buf, int size, int blk_seq_num);
  93 /* Device specific */
  94 #ifdef CONFIG_DFU_MMC
  95 extern int dfu_fill_entity_mmc(struct dfu_entity *dfu, char *s);
  96 #else
  97 static inline int dfu_fill_entity_mmc(struct dfu_entity *dfu, char *s)
  98 {
  99         puts("MMC support not available!\n");
 100         return -1;
 101 }
 102 #endif
 103 #endif /* __DFU_ENTITY_H_ */