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oftree command: make devicetree file optargs to -l/-s 

When loading or saving a devicetree it seems logical to add the
filename to the option specifying the command. This is also slightly
easier to parse.
While at it add missing documentation for the -s option.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Sascha Hauer 2014-05-19 14:46:53 +02:00
parent d384b5639f
commit 4d1ebec9da
1 changed files with 17 additions and 39 deletions
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56
commands/oftree.c
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@ -42,13 +42,11 @@
static int do_oftree(int argc, char *argv[])
{
struct fdt_header *fdt = NULL;
void *fdt_free = NULL;
int size;
int opt;
char *file = NULL;
int probe = 0;
int load = 0;
int save = 0;
char *load = NULL;
char *save = NULL;
int free_of = 0;
int ret;
struct device_node *root;
@ -56,7 +54,7 @@ static int do_oftree(int argc, char *argv[])
while ((opt = getopt(argc, argv, "pfl:s:")) > 0) {
switch (opt) {
case 'l':
load = 1;
load = optarg;
break;
case 'p':
if (IS_ENABLED(CONFIG_OFDEVICE)) {
@ -70,7 +68,7 @@ static int do_oftree(int argc, char *argv[])
free_of = 1;
break;
case 's':
save = 1;
save = optarg;
break;
}
}
@ -85,20 +83,10 @@ static int do_oftree(int argc, char *argv[])
return 0;
}
if (optind < argc)
file = argv[optind];
if (!probe && !load && !save)
return COMMAND_ERROR_USAGE;
if (save) {
if (!file) {
printf("no file given\n");
ret = -ENOENT;
goto out;
}
fdt = of_get_fixed_tree(NULL);
if (!fdt) {
printf("no devicetree available\n");
@ -107,39 +95,29 @@ static int do_oftree(int argc, char *argv[])
goto out;
}
ret = write_file(file, fdt, fdt32_to_cpu(fdt->totalsize));
ret = write_file(save, fdt, fdt32_to_cpu(fdt->totalsize));
goto out;
}
if (file) {
fdt = read_file(file, &size);
if (load) {
fdt = read_file(load, &size);
if (!fdt) {
printf("unable to read %s\n", file);
printf("unable to read %s\n", load);
return 1;
}
fdt_free = fdt;
}
if (load) {
if (!fdt) {
printf("no fdt given\n");
ret = -ENOENT;
goto out;
}
root = of_unflatten_dtb(fdt);
free(fdt);
if (IS_ERR(root))
ret = PTR_ERR(root);
else
ret = 0;
return PTR_ERR(root);
ret = of_set_root_node(root);
if (ret) {
printf("parse oftree: %s\n", strerror(-ret));
printf("setting root node failed: %s\n", strerror(-ret));
of_delete_node(root);
goto out;
}
}
@ -152,14 +130,14 @@ static int do_oftree(int argc, char *argv[])
ret = 0;
out:
free(fdt_free);
return ret;
}
BAREBOX_CMD_HELP_START(oftree)
BAREBOX_CMD_HELP_TEXT("Options:")
BAREBOX_CMD_HELP_OPT ("-l", "Load DTB to internal device tree")
BAREBOX_CMD_HELP_OPT ("-l <DTB>", "Load <DTB> to internal devicetree\n")
BAREBOX_CMD_HELP_OPT ("-s <DTB>", "save internal devicetree to <DTB>\n")
BAREBOX_CMD_HELP_OPT ("-p", "probe devices from stored device tree")
BAREBOX_CMD_HELP_OPT ("-f", "free stored device tree")
BAREBOX_CMD_HELP_END
@ -167,7 +145,7 @@ BAREBOX_CMD_HELP_END
BAREBOX_CMD_START(oftree)
.cmd = do_oftree,
BAREBOX_CMD_DESC("handle device trees")
BAREBOX_CMD_OPTS("[-lpf] [DTB]")
BAREBOX_CMD_OPTS("[-lpfs]")
BAREBOX_CMD_GROUP(CMD_GRP_MISC)
BAREBOX_CMD_HELP(cmd_oftree_help)
BAREBOX_CMD_END