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authorHeiko Schocher <hs@denx.de>2014-03-18 08:09:56 +0100
committerMarek Vasut <marex@denx.de>2014-03-23 02:20:09 +0100
commit001a8319866062cd63b7b62e5bb4b85eacfde4b4 (patch)
tree9d9d6a5bd0f4aa96f7fe3466dab6ddc3d846615c /drivers/dfu
parenta2199afea169c1e13881ca90a02a28e4c9ffd114 (diff)
usb: dfu: introduce dfuMANIFEST state
on nand flash using ubi, after the download of the new image into the flash, the "rest" of the nand sectors get erased while flushing the medium. With current u-boot version dfu-util may show: Starting download: [##################################################] finished! state(7) = dfuMANIFEST, status(0) = No error condition is present unable to read DFU status as get_status is not answered while erasing sectors, if erasing needs some time. So do the following changes to prevent this: - introduce dfuManifest state According to dfu specification ( http://www.usb.org/developers/devclass_docs/usbdfu10.pdf ) section 7: "the device enters the dfuMANIFEST-SYNC state and awaits the solicitation of the status report by the host. Upon receipt of the anticipated DFU_GETSTATUS, the device enters the dfuMANIFEST state, where it completes its reprogramming operations." - when stepping into dfuManifest state, sending a PollTimeout DFU_MANIFEST_POLL_TIMEOUT in ms, to the host, so the host (dfu-util) waits the PollTimeout before sending a get_status again. 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>
Diffstat (limited to 'drivers/dfu')
-rw-r--r--drivers/dfu/dfu.c4
1 files changed, 0 insertions, 4 deletions
diff --git a/drivers/dfu/dfu.c b/drivers/dfu/dfu.c
index 1aced26c4e..f94c412aa9 100644
--- a/drivers/dfu/dfu.c
+++ b/drivers/dfu/dfu.c
@@ -218,10 +218,6 @@ int dfu_write(struct dfu_entity *dfu, void *buf, int size, int blk_seq_num)
ret = tret;
}
- /* end? */
- if (size == 0)
- ret = dfu_flush(dfu, buf, size, blk_seq_num);
-
return ret = 0 ? size : ret;
}