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         /* eMMC HW partition access */
  47         int hw_partition;
  48
  49         /* FAT/EXT */
  50         unsigned int dev;
  51         unsigned int part;
  52 };
  53
  54 struct nand_internal_data {
  55         /* RAW programming */
  56         u64 start;
  57         u64 size;
  58
  59         unsigned int dev;
  60         unsigned int part;
  61         /* for nand/ubi use */
  62         unsigned int ubi;
  63 };
  64
  65 struct ram_internal_data {
  66         void            *start;
  67         unsigned int    size;
  68 };
  69
  70 #define DFU_NAME_SIZE                   32
  71 #define DFU_CMD_BUF_SIZE                128
  72 #ifndef CONFIG_SYS_DFU_DATA_BUF_SIZE
  73 #define CONFIG_SYS_DFU_DATA_BUF_SIZE            (1024*1024*8)   /* 8 MiB */
  74 #endif
  75 #ifndef CONFIG_SYS_DFU_MAX_FILE_SIZE
  76 #define CONFIG_SYS_DFU_MAX_FILE_SIZE CONFIG_SYS_DFU_DATA_BUF_SIZE
  77 #endif
  78 #ifndef DFU_DEFAULT_POLL_TIMEOUT
  79 #define DFU_DEFAULT_POLL_TIMEOUT 0
  80 #endif
  81 #ifndef DFU_MANIFEST_POLL_TIMEOUT
  82 #define DFU_MANIFEST_POLL_TIMEOUT       DFU_DEFAULT_POLL_TIMEOUT
  83 #endif
  84
  85 struct dfu_entity {
  86         char                    name[DFU_NAME_SIZE];
  87         int                     alt;
  88         void                    *dev_private;
  89         int                     dev_num;
  90         enum dfu_device_type    dev_type;
  91         enum dfu_layout         layout;
  92
  93         union {
  94                 struct mmc_internal_data mmc;
  95                 struct nand_internal_data nand;
  96                 struct ram_internal_data ram;
  97         } data;
  98
  99         int (*read_medium)(struct dfu_entity *dfu,
 100                         u64 offset, void *buf, long *len);
 101
 102         int (*write_medium)(struct dfu_entity *dfu,
 103                         u64 offset, void *buf, long *len);
 104
 105         int (*flush_medium)(struct dfu_entity *dfu);
 106         unsigned int (*poll_timeout)(struct dfu_entity *dfu);
 107
 108         struct list_head list;
 109
 110         /* on the fly state */
 111         u32 crc;
 112         u64 offset;
 113         int i_blk_seq_num;
 114         u8 *i_buf;
 115         u8 *i_buf_start;
 116         u8 *i_buf_end;
 117         long r_left;
 118         long b_left;
 119
 120         u32 bad_skip;   /* for nand use */
 121
 122         unsigned int inited:1;
 123 };
 124
 125 int dfu_config_entities(char *s, char *interface, int num);
 126 void dfu_free_entities(void);
 127 void dfu_show_entities(void);
 128 int dfu_get_alt_number(void);
 129 const char *dfu_get_dev_type(enum dfu_device_type t);
 130 const char *dfu_get_layout(enum dfu_layout l);
 131 struct dfu_entity *dfu_get_entity(int alt);
 132 char *dfu_extract_token(char** e, int *n);
 133 void dfu_trigger_reset(void);
 134 int dfu_get_alt(char *name);
 135 bool dfu_reset(void);
 136 int dfu_init_env_entities(char *interface, int dev);
 137 unsigned char *dfu_get_buf(void);
 138 unsigned char *dfu_free_buf(void);
 139 unsigned long dfu_get_buf_size(void);
 140
 141 int dfu_read(struct dfu_entity *de, void *buf, int size, int blk_seq_num);
 142 int dfu_write(struct dfu_entity *de, void *buf, int size, int blk_seq_num);
 143 int dfu_flush(struct dfu_entity *de, void *buf, int size, int blk_seq_num);
 144 /* Device specific */
 145 #ifdef CONFIG_DFU_MMC
 146 extern int dfu_fill_entity_mmc(struct dfu_entity *dfu, char *s);
 147 #else
 148 static inline int dfu_fill_entity_mmc(struct dfu_entity *dfu, char *s)
 149 {
 150         puts("MMC support not available!\n");
 151         return -1;
 152 }
 153 #endif
 154
 155 #ifdef CONFIG_DFU_NAND
 156 extern int dfu_fill_entity_nand(struct dfu_entity *dfu, char *s);
 157 #else
 158 static inline int dfu_fill_entity_nand(struct dfu_entity *dfu, char *s)
 159 {
 160         puts("NAND support not available!\n");
 161         return -1;
 162 }
 163 #endif
 164
 165 #ifdef CONFIG_DFU_RAM
 166 extern int dfu_fill_entity_ram(struct dfu_entity *dfu, char *s);
 167 #else
 168 static inline int dfu_fill_entity_ram(struct dfu_entity *dfu, char *s)
 169 {
 170         puts("RAM support not available!\n");
 171         return -1;
 172 }
 173 #endif
 174
 175 int dfu_add(struct usb_configuration *c);
 176 #endif /* __DFU_ENTITY_H_ */