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 <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 #ifndef DFU_DEFAULT_POLL_TIMEOUT
  81 #define DFU_DEFAULT_POLL_TIMEOUT 0
  82 #endif
  83
  84 struct dfu_entity {
  85         char                    name[DFU_NAME_SIZE];
  86         int                     alt;
  87         void                    *dev_private;
  88         int                     dev_num;
  89         enum dfu_device_type    dev_type;
  90         enum dfu_layout         layout;
  91
  92         union {
  93                 struct mmc_internal_data mmc;
  94                 struct nand_internal_data nand;
  95                 struct ram_internal_data ram;
  96         } data;
  97
  98         int (*read_medium)(struct dfu_entity *dfu,
  99                         u64 offset, void *buf, long *len);
 100
 101         int (*write_medium)(struct dfu_entity *dfu,
 102                         u64 offset, void *buf, long *len);
 103
 104         int (*flush_medium)(struct dfu_entity *dfu);
 105
 106         struct list_head list;
 107
 108         /* on the fly state */
 109         u32 crc;
 110         u64 offset;
 111         int i_blk_seq_num;
 112         u8 *i_buf;
 113         u8 *i_buf_start;
 114         u8 *i_buf_end;
 115         long r_left;
 116         long b_left;
 117
 118         u32 bad_skip;   /* for nand use */
 119
 120         unsigned int inited:1;
 121 };
 122
 123 int dfu_config_entities(char *s, char *interface, int num);
 124 void dfu_free_entities(void);
 125 void dfu_show_entities(void);
 126 int dfu_get_alt_number(void);
 127 const char *dfu_get_dev_type(enum dfu_device_type t);
 128 const char *dfu_get_layout(enum dfu_layout l);
 129 struct dfu_entity *dfu_get_entity(int alt);
 130 char *dfu_extract_token(char** e, int *n);
 131 void dfu_trigger_reset(void);
 132 int dfu_get_alt(char *name);
 133 bool dfu_reset(void);
 134 int dfu_init_env_entities(char *interface, int dev);
 135 unsigned char *dfu_get_buf(void);
 136 unsigned char *dfu_free_buf(void);
 137 unsigned long dfu_get_buf_size(void);
 138
 139 int dfu_read(struct dfu_entity *de, void *buf, int size, int blk_seq_num);
 140 int dfu_write(struct dfu_entity *de, void *buf, int size, int blk_seq_num);
 141 /* Device specific */
 142 #ifdef CONFIG_DFU_MMC
 143 extern int dfu_fill_entity_mmc(struct dfu_entity *dfu, char *s);
 144 #else
 145 static inline int dfu_fill_entity_mmc(struct dfu_entity *dfu, char *s)
 146 {
 147         puts("MMC support not available!\n");
 148         return -1;
 149 }
 150 #endif
 151
 152 #ifdef CONFIG_DFU_NAND
 153 extern int dfu_fill_entity_nand(struct dfu_entity *dfu, char *s);
 154 #else
 155 static inline int dfu_fill_entity_nand(struct dfu_entity *dfu, char *s)
 156 {
 157         puts("NAND support not available!\n");
 158         return -1;
 159 }
 160 #endif
 161
 162 #ifdef CONFIG_DFU_RAM
 163 extern int dfu_fill_entity_ram(struct dfu_entity *dfu, char *s);
 164 #else
 165 static inline int dfu_fill_entity_ram(struct dfu_entity *dfu, char *s)
 166 {
 167         puts("RAM support not available!\n");
 168         return -1;
 169 }
 170 #endif
 171
 172 #ifdef CONFIG_DFU_FUNCTION
 173 int dfu_add(struct usb_configuration *c);
 174 #else
 175 int dfu_add(struct usb_configuration *c)
 176 {
 177         return 0;
 178 }
 179 #endif
 180 #endif /* __DFU_ENTITY_H_ */