diff options
author | Lukasz Majewski <l.majewski@majess.pl> | 2015-08-24 00:21:46 +0200 |
---|---|---|
committer | Marek Vasut <marex@denx.de> | 2015-09-07 13:41:04 +0200 |
commit | 2092e4610485618ec7a676ff8e6d297ea9dca3d5 (patch) | |
tree | c7fad72d813461d3b7e548786ed9606441b39172 /drivers/dfu/dfu.c | |
parent | 2d50d68a4ca1cce82899c9f0cfca17edf34bb254 (diff) |
dfu: tftp: update: Add dfu_write_from_mem_addr() function
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>
Diffstat (limited to 'drivers/dfu/dfu.c')
-rw-r--r-- | drivers/dfu/dfu.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/drivers/dfu/dfu.c b/drivers/dfu/dfu.c index 2267dbfb518..6cf240de22d 100644 --- a/drivers/dfu/dfu.c +++ b/drivers/dfu/dfu.c @@ -568,3 +568,40 @@ int dfu_get_alt(char *name) return -ENODEV; } + +int dfu_write_from_mem_addr(struct dfu_entity *dfu, void *buf, int size) +{ + unsigned long dfu_buf_size, write, left = size; + int i, ret = 0; + void *dp = buf; + + /* + * Here we must call dfu_get_buf(dfu) first to be sure that dfu_buf_size + * has been properly initialized - e.g. if "dfu_bufsiz" has been taken + * into account. + */ + dfu_get_buf(dfu); + dfu_buf_size = dfu_get_buf_size(); + debug("%s: dfu buf size: %lu\n", __func__, dfu_buf_size); + + for (i = 0; left > 0; i++) { + write = min(dfu_buf_size, left); + + debug("%s: dp: 0x%p left: %lu write: %lu\n", __func__, + dp, left, write); + ret = dfu_write(dfu, dp, write, i); + if (ret) { + error("DFU write failed\n"); + return ret; + } + + dp += write; + left -= write; + } + + ret = dfu_flush(dfu, NULL, 0, i); + if (ret) + error("DFU flush failed!"); + + return ret; +} |