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usb, dfu: extract flush code into seperate function 

move the flushing code into an extra function dfu_flush(),
so it can be used from other code.

Signed-off-by: Heiko Schocher <hs@denx.de>
Cc: Lukasz Majewski <l.majewski@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Pantelis Antoniou <panto@antoniou-consulting.com>
This commit is contained in:
Heiko Schocher 2014-03-18 08:09:55 +01:00 committed by Marek Vasut
parent 2c072c958b
commit a2199afea1
2 changed files with 25 additions and 18 deletions
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42
drivers/dfu/dfu.c
View File

@ -126,6 +126,28 @@ static int dfu_write_buffer_drain(struct dfu_entity *dfu)
return ret;
}
int dfu_flush(struct dfu_entity *dfu, void *buf, int size, int blk_seq_num)
{
int ret = 0;
if (dfu->flush_medium)
ret = dfu->flush_medium(dfu);
printf("\nDFU complete CRC32: 0x%08x\n", dfu->crc);
/* clear everything */
dfu_free_buf();
dfu->crc = 0;
dfu->offset = 0;
dfu->i_blk_seq_num = 0;
dfu->i_buf_start = dfu_buf;
dfu->i_buf_end = dfu_buf;
dfu->i_buf = dfu->i_buf_start;
dfu->inited = 0;
return ret;
}
int dfu_write(struct dfu_entity *dfu, void *buf, int size, int blk_seq_num)
{
int ret = 0;
@ -197,24 +219,8 @@ int dfu_write(struct dfu_entity *dfu, void *buf, int size, int blk_seq_num)
}
/* end? */
if (size == 0) {
/* Now try and flush to the medium if needed. */
if (dfu->flush_medium)
ret = dfu->flush_medium(dfu);
printf("\nDFU complete CRC32: 0x%08x\n", dfu->crc);
/* clear everything */
dfu_free_buf();
dfu->crc = 0;
dfu->offset = 0;
dfu->i_blk_seq_num = 0;
dfu->i_buf_start = dfu_buf;
dfu->i_buf_end = dfu_buf;
dfu->i_buf = dfu->i_buf_start;
dfu->inited = 0;
}
if (size == 0)
ret = dfu_flush(dfu, buf, size, blk_seq_num);
return ret = 0 ? size : ret;
}

1
include/dfu.h
View File

@ -138,6 +138,7 @@ unsigned long dfu_get_buf_size(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);
/* Device specific */
#ifdef CONFIG_DFU_MMC
extern int dfu_fill_entity_mmc(struct dfu_entity *dfu, char *s);