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fdtput: Prepare to support multiple operations

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We want to add new options to this tool. In preparation for this, add
the concept of a current operation.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2012-07-12 08:52:48 -07:00 • committed by Jon Loeliger
parent bb21f0a766
commit f58dff5040
1 changed files with 26 additions and 11 deletions
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37
fdtput.c
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@ -28,7 +28,13 @@
#include "util.h"
/* These are the operations we support */
enum oper_type {
OPER_WRITE_PROP, /* Write a property in a node */
};
struct display_info {
enum oper_type oper; /* operation to perform */
int type; /* data type (s/i/u/x or 0 for default) */
int size; /* data size (1/2/4) */
int verbose; /* verbose output */
@ -143,13 +149,19 @@ static int do_fdtput(struct display_info *disp, const char *filename,
if (!blob)
return -1;
/* convert the arguments into a single binary value, then store */
assert(arg_count >= 2);
if (encode_value(disp, arg + 2, arg_count - 2, &value, &len) ||
store_key_value(blob, *arg, arg[1], value, len))
ret = -1;
if (!ret)
switch (disp->oper) {
case OPER_WRITE_PROP:
/*
* Convert the arguments into a single binary value, then
* store them into the property.
*/
assert(arg_count >= 2);
if (encode_value(disp, arg + 2, arg_count - 2, &value, &len) ||
store_key_value(blob, *arg, arg[1], value, len))
ret = -1;
break;
}
if (ret >= 0)
ret = utilfdt_write(filename, blob);
free(blob);
@ -185,6 +197,7 @@ int main(int argc, char *argv[])
memset(&disp, '\0', sizeof(disp));
disp.size = -1;
disp.oper = OPER_WRITE_PROP;
for (;;) {
int c = getopt(argc, argv, "ht:v");
if (c == -1)
@ -224,10 +237,12 @@ int main(int argc, char *argv[])
argv += optind;
argc -= optind;
if (argc < 1)
usage("Missing node");
if (argc < 2)
usage("Missing property");
if (disp.oper == OPER_WRITE_PROP) {
if (argc < 1)
usage("Missing node");
if (argc < 2)
usage("Missing property");
}
if (do_fdtput(&disp, filename, argv, argc))
return 1;