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u-boot/include/dfu.h
Andy Shevchenko 98a8f445fd dfu: Add optional timeout parameter 
When the `dfu` command is called from the U-Boot environment,
it now accepts an optional parameter that specifies a timeout (in seconds).
If a DFU connection is not made within that time the `dfu` command exits
(as it would if Ctrl+C was pressed). If the timeout is left empty or being
zero the `dfu` command behaves as it does now.

This is useful for allowing U-Boot to check to see if anything wants to
upload new firmware before continuing to boot.

The patch is based on the commit
5e966ccc3c
by Sebastien Colleur, which has been heavily reworked due to U-Boot changes
in the past.

Signed-off-by: Brad Campbell <bradjc5@gmail.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2020-01-07 14:37:50 +01:00

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8.6 KiB
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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,
DFU_DEV_MTD,
DFU_DEV_VIRT,
};
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 mtd_internal_data {
struct mtd_info *info;
/* RAW programming */
u64 start;
u64 size;
/* for ubi partition */
unsigned int ubi;
};
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;
/* for sf/ubi use */
unsigned int ubi;
};
struct virt_internal_data {
int dev_num;
};
#define DFU_NAME_SIZE 32
#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 mtd_internal_data mtd;
struct nand_internal_data nand;
struct ram_internal_data ram;
struct sf_internal_data sf;
struct virt_internal_data virt;
} 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_alt_init(int num, struct dfu_entity **dfu);
int dfu_alt_add(struct dfu_entity *dfu, char *interface, char *devstr, char *s);
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);
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);
#ifdef CONFIG_DFU_TIMEOUT
unsigned long dfu_get_timeout(void);
void dfu_set_timeout(unsigned long);
#endif
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_initiated_callback - weak callback called on DFU transaction start
*
* It is a callback function called by DFU stack when a DFU transaction is
* initiated. This function allows to manage some board specific behavior on
* DFU targets.
*
* @param dfu - pointer to the dfu_entity, which should be initialized
*
*/
void dfu_initiated_callback(struct dfu_entity *dfu);
/**
* dfu_flush_callback - weak callback called at the end of the DFU write
*
* It is a callback function called by DFU stack after DFU manifestation.
* This function allows to manage some board specific behavior on DFU targets
*
* @param dfu - pointer to the dfu_entity, which should be flushed
*
*/
void dfu_flush_callback(struct dfu_entity *dfu);
/*
* 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 */
#if CONFIG_IS_ENABLED(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
#if CONFIG_IS_ENABLED(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
#if CONFIG_IS_ENABLED(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
#if CONFIG_IS_ENABLED(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
#if CONFIG_IS_ENABLED(DFU_MTD)
int dfu_fill_entity_mtd(struct dfu_entity *dfu, char *devstr, char *s);
#else
static inline int dfu_fill_entity_mtd(struct dfu_entity *dfu, char *devstr,
char *s)
{
puts("MTD support not available!\n");
return -1;
}
#endif
#ifdef CONFIG_DFU_VIRT
int dfu_fill_entity_virt(struct dfu_entity *dfu, char *devstr, char *s);
int dfu_write_medium_virt(struct dfu_entity *dfu, u64 offset,
void *buf, long *len);
int dfu_get_medium_size_virt(struct dfu_entity *dfu, u64 *size);
int dfu_read_medium_virt(struct dfu_entity *dfu, u64 offset,
void *buf, long *len);
#else
static inline int dfu_fill_entity_virt(struct dfu_entity *dfu, char *devstr,
char *s)
{
puts("VIRT 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
*/
#if CONFIG_IS_ENABLED(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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