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dfu: tftp: update: Add dfu_write_from_mem_addr() function

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This function allows writing via DFU data stored from fixed buffer address
(like e.g. loadaddr env variable).

Such predefined buffers are used in the update_tftp() code. In fact this
function is a wrapper on the dfu_write() and dfu_flush().

Signed-off-by: Lukasz Majewski <l.majewski@majess.pl>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
This commit is contained in:
Lukasz Majewski
2015-08-24 00:21:46 +02:00
committed by Marek Vasut
parent 2d50d68a4c
commit 2092e46104
2 changed files with 52 additions and 0 deletions
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15
include/dfu.h
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@@ -162,6 +162,21 @@ 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_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);