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Bluetooth: btrtl: Fix an issue that failing to download the FW which size is over 32K bytes

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Fix the issue that when the FW size is 32K+, it will fail for the download
process because of the incorrect index.

When firmware patch length is over 32K, "dl_cmd->index" may >= 0x80. It
will be thought as "data end" that download process will not complete.
However, driver should recount the index from 1.

Signed-off-by: Max Chou <max.chou@realtek.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Max Chou 2019-09-05 13:21:57 +08:00 committed by Marcel Holtmann
parent 72bb169e02
commit cf0d9a705d
1 changed files with 5 additions and 1 deletions
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6
drivers/bluetooth/btrtl.c
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@ -401,7 +401,11 @@ static int rtl_download_firmware(struct hci_dev *hdev,
BT_DBG("download fw (%d/%d)", i, frag_num);
dl_cmd->index = i;
if (i > 0x7f)
dl_cmd->index = (i & 0x7f) + 1;
else
dl_cmd->index = i;
if (i == (frag_num - 1)) {
dl_cmd->index |= 0x80; /* data end */
frag_len = fw_len % RTL_FRAG_LEN;