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tools: kwboot: Allow to use option -b without image path

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Allow option -b without image path parameter, to send boot pattern and
wait for response but not send any image. This allows to use kwboot just
for processing boot pattern and user can use any other xmodem tool for
transferring the image itself (e.g. sx). Useful for debugging purposes.

Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Stefan Roese <sr@denx.de>
This commit is contained in:
Pali Rohár 2022-01-25 18:13:07 +01:00 committed by Stefan Roese
parent 5d8aa4c92b
commit c513fe47dc
1 changed files with 17 additions and 5 deletions
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22
tools/kwboot.c
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@ -1699,6 +1699,8 @@ main(int argc, char **argv)
size_t size;
size_t after_img_rsv;
int baudrate;
int prev_optind;
int c;
rv = 1;
tty = -1;
@ -1716,22 +1718,32 @@ main(int argc, char **argv)
kwboot_verbose = isatty(STDOUT_FILENO);
do {
int c = getopt(argc, argv, "hb:ptaB:dD:q:s:o:");
prev_optind = optind;
c = getopt(argc, argv, "hbptaB:dD:q:s:o:");
if (c < 0)
break;
switch (c) {
case 'b':
if (imgpath || bootmsg || debugmsg)
goto usage;
bootmsg = kwboot_msg_boot;
imgpath = optarg;
if (prev_optind == optind)
goto usage;
if (argv[optind] && argv[optind][0] != '-')
imgpath = argv[optind++];
break;
case 'D':
if (imgpath || bootmsg || debugmsg)
goto usage;
bootmsg = NULL;
imgpath = optarg;
break;
case 'd':
if (imgpath || bootmsg || debugmsg)
goto usage;
debugmsg = kwboot_msg_debug;
break;
@ -1774,11 +1786,11 @@ main(int argc, char **argv)
if (!bootmsg && !term && !debugmsg)
goto usage;
if (argc - optind < 1)
goto usage;
ttypath = argv[optind++];
if (optind != argc)
goto usage;
tty = kwboot_open_tty(ttypath, imgpath ? 115200 : baudrate);
if (tty < 0) {
perror(ttypath);