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/* SPDX-License-Identifier: GPL-2.0+ */
/*
* dfu.h - DFU flashable area description
*
* Copyright (C) 2012 Samsung Electronics
* authors: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
* Lukasz Majewski <l.majewski@samsung.com>
*/
#ifndef __DFU_ENTITY_H_
#define __DFU_ENTITY_H_
#include <common.h>
#include <linux/list.h>
#include <mmc.h>
#include <spi_flash.h>
#include <linux/usb/composite.h>
enum dfu_device_type {
DFU_DEV_MMC = 1,
DFU_DEV_ONENAND,
DFU_DEV_NAND,
DFU_DEV_RAM,
DFU_DEV_SF,
};
enum dfu_layout {
DFU_RAW_ADDR = 1,
DFU_FS_FAT,
DFU_FS_EXT2,
DFU_FS_EXT3,
DFU_FS_EXT4,
DFU_RAM_ADDR,
};
enum dfu_op {
DFU_OP_READ = 1,
DFU_OP_WRITE,
DFU_OP_SIZE,
};
struct mmc_internal_data {
int dev_num;
/* RAW programming */
unsigned int lba_start;
unsigned int lba_size;
unsigned int lba_blk_size;
/* eMMC HW partition access */
int hw_partition;
/* FAT/EXT */
unsigned int dev;
unsigned int part;
};
struct nand_internal_data {
/* RAW programming */
u64 start;
u64 size;
unsigned int dev;
unsigned int part;
/* for nand/ubi use */
unsigned int ubi;
};
struct ram_internal_data {
void *start;
unsigned int size;
};
struct sf_internal_data {
struct spi_flash *dev;
/* RAW programming */
u64 start;
u64 size;
};
#define DFU_NAME_SIZE 32
#define DFU_CMD_BUF_SIZE 128
#ifndef CONFIG_SYS_DFU_DATA_BUF_SIZE
#define CONFIG_SYS_DFU_DATA_BUF_SIZE (1024*1024*8) /* 8 MiB */
#endif
#ifndef CONFIG_SYS_DFU_MAX_FILE_SIZE
#define CONFIG_SYS_DFU_MAX_FILE_SIZE CONFIG_SYS_DFU_DATA_BUF_SIZE
#endif
#ifndef DFU_DEFAULT_POLL_TIMEOUT
#define DFU_DEFAULT_POLL_TIMEOUT 0
#endif
#ifndef DFU_MANIFEST_POLL_TIMEOUT
#define DFU_MANIFEST_POLL_TIMEOUT DFU_DEFAULT_POLL_TIMEOUT
#endif
struct dfu_entity {
char name[DFU_NAME_SIZE];
int alt;
void *dev_private;
enum dfu_device_type dev_type;
enum dfu_layout layout;
unsigned long max_buf_size;
union {
struct mmc_internal_data mmc;
struct nand_internal_data nand;
struct ram_internal_data ram;
struct sf_internal_data sf;
} data;
int (*get_medium_size)(struct dfu_entity *dfu, u64 *size);
int (*read_medium)(struct dfu_entity *dfu,
u64 offset, void *buf, long *len);
int (*write_medium)(struct dfu_entity *dfu,
u64 offset, void *buf, long *len);
int (*flush_medium)(struct dfu_entity *dfu);
unsigned int (*poll_timeout)(struct dfu_entity *dfu);
void (*free_entity)(struct dfu_entity *dfu);
struct list_head list;
/* on the fly state */
u32 crc;
u64 offset;
int i_blk_seq_num;
u8 *i_buf;
u8 *i_buf_start;
u8 *i_buf_end;
u64 r_left;
long b_left;
u32 bad_skip; /* for nand use */
unsigned int inited:1;
};
#ifdef CONFIG_SET_DFU_ALT_INFO
void set_dfu_alt_info(char *interface, char *devstr);
#endif
int dfu_config_entities(char *s, char *interface, char *devstr);
void dfu_free_entities(void);
void dfu_show_entities(void);
int dfu_get_alt_number(void);
const char *dfu_get_dev_type(enum dfu_device_type t);
const char *dfu_get_layout(enum dfu_layout l);
struct dfu_entity *dfu_get_entity(int alt);
char *dfu_extract_token(char** e, int *n);
void dfu_trigger_reset(void);
int dfu_get_alt(char *name);
int dfu_init_env_entities(char *interface, char *devstr);
unsigned char *dfu_get_buf(struct dfu_entity *dfu);
unsigned char *dfu_free_buf(void);
unsigned long dfu_get_buf_size(void);
bool dfu_usb_get_reset(void);
int dfu_read(struct dfu_entity *de, void *buf, int size, int blk_seq_num);
int dfu_write(struct dfu_entity *de, void *buf, int size, int blk_seq_num);
int dfu_flush(struct dfu_entity *de, void *buf, int size, int blk_seq_num);
/*
* dfu_defer_flush - pointer to store dfu_entity for deferred flashing.
* It should be NULL when not used.
*/
extern struct dfu_entity *dfu_defer_flush;
/**
* dfu_get_defer_flush - get current value of dfu_defer_flush pointer
*
* @return - value of the dfu_defer_flush pointer
*/
static inline struct dfu_entity *dfu_get_defer_flush(void)
{
return dfu_defer_flush;
}
/**
* dfu_set_defer_flush - set the dfu_defer_flush pointer
*
* @param dfu - pointer to the dfu_entity, which should be written
*/
static inline void dfu_set_defer_flush(struct dfu_entity *dfu)
{
dfu_defer_flush = dfu;
}
/**
* dfu_write_from_mem_addr - write data from memory to DFU managed medium
*
* This function adds support for writing data starting from fixed memory
* address (like $loadaddr) to dfu managed medium (e.g. NAND, MMC, file system)
*
* @param dfu - dfu entity to which we want to store data
* @param buf - fixed memory addres from where data starts
* @param size - number of bytes to write
*
* @return - 0 on success, other value on failure
*/
int dfu_write_from_mem_addr(struct dfu_entity *dfu, void *buf, int size);
/* Device specific */
#ifdef CONFIG_DFU_MMC
extern int dfu_fill_entity_mmc(struct dfu_entity *dfu, char *devstr, char *s);
#else
static inline int dfu_fill_entity_mmc(struct dfu_entity *dfu, char *devstr,
char *s)
{
puts("MMC support not available!\n");
return -1;
}
#endif
#ifdef CONFIG_DFU_NAND
extern int dfu_fill_entity_nand(struct dfu_entity *dfu, char *devstr, char *s);
#else
static inline int dfu_fill_entity_nand(struct dfu_entity *dfu, char *devstr,
char *s)
{
puts("NAND support not available!\n");
return -1;
}
#endif
#ifdef CONFIG_DFU_RAM
extern int dfu_fill_entity_ram(struct dfu_entity *dfu, char *devstr, char *s);
#else
static inline int dfu_fill_entity_ram(struct dfu_entity *dfu, char *devstr,
char *s)
{
puts("RAM support not available!\n");
return -1;
}
#endif
#ifdef CONFIG_DFU_SF
extern int dfu_fill_entity_sf(struct dfu_entity *dfu, char *devstr, char *s);
#else
static inline int dfu_fill_entity_sf(struct dfu_entity *dfu, char *devstr,
char *s)
{
puts("SF support not available!\n");
return -1;
}
#endif
/**
* dfu_tftp_write - Write TFTP data to DFU medium
*
* This function is storing data received via TFTP on DFU supported medium.
*
* @param dfu_entity_name - name of DFU entity to write
* @param addr - address of data buffer to write
* @param len - number of bytes
* @param interface - destination DFU medium (e.g. "mmc")
* @param devstring - instance number of destination DFU medium (e.g. "1")
*
* @return 0 on success, otherwise error code
*/
#ifdef CONFIG_DFU_TFTP
int dfu_tftp_write(char *dfu_entity_name, unsigned int addr, unsigned int len,
char *interface, char *devstring);
#else
static inline int dfu_tftp_write(char *dfu_entity_name, unsigned int addr,
unsigned int len, char *interface,
char *devstring)
{
puts("TFTP write support for DFU not available!\n");
return -ENOSYS;
}
#endif
int dfu_add(struct usb_configuration *c);
#endif /* __DFU_ENTITY_H_ */
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