1 // SPDX-License-Identifier: GPL-2.0-or-later
5  * Portions from U-Boot cmd_fdt.c (C) Copyright 2007
33 	enum display_mode mode;	/* display mode that we are using */
48  * @param disp		Display information / options
49  * @param data		Data to display
51  * @return 0 if ok, -1 if data does not match format
66 	is_string = (disp->type) == 's' ||  in show_data()
67 		(!disp->type && util_is_printable_string(data, len));  in show_data()
69 		if (data[len - 1] != '\0') {  in show_data()
71 			return -1;  in show_data()
73 		for (s = data; s - data < len; s += strlen(s) + 1) {  in show_data()
80 	size = disp->size;  in show_data()
81 	if (size == -1) {  in show_data()
86 		return -1;  in show_data()
89 	fmt[1] = disp->type ? disp->type : 'd';  in show_data()
105  * @param node		Node to display
118 			return prop == -FDT_ERR_NOTFOUND ? 0 : prop;  in list_properties()
120 		name = fdt_string(blob, fdt32_to_cpu(data->nameoff));  in list_properties()
133  * @param node		Node to display
142 	int depth = 1;		/* the assumed depth of this node */  in list_subnodes()  local
149 			if (level <= depth) {  in list_subnodes()
164 			level--;  in list_subnodes()
166 				level = -1;		/* exit the loop */  in list_subnodes()
173 			if (level <= depth)  in list_subnodes()
184  * display option provided.
187  * @param disp		Display information / options
188  * @param node		Node to display
189  * @param property	Name of property to display, or NULL if none
190  * @return 0 if ok, -ve on error
198 	switch (disp->mode) {  in show_data_for_item()
212 				err = -1;  in show_data_for_item()
215 		} else if (disp->default_val) {  in show_data_for_item()
216 			puts(disp->default_val);  in show_data_for_item()
219 			err = -1;  in show_data_for_item()
230  * @param disp		Display information / options
234  * @param return 0 if ok, -ve on error
245 		return -1;  in do_fdtget()
250 			if (disp->default_val) {  in do_fdtget()
251 				puts(disp->default_val);  in do_fdtget()
255 				return -1;  in do_fdtget()
261 			return -1;  in do_fdtget()
267 	"fdtget - read values from device tree\n"
272 	"	fdtget -p <options> <dt file> [<node> ]...\n"
274 	"\t-t <type>\tType of data\n"
275 	"\t-p\t\tList properties for each node\n"
276 	"\t-l\t\tList subnodes for each node\n"
277 	"\t-d\t\tDefault value to display when the property is "
279 	"\t-h\t\tPrint this help\n\n"
299 	disp.size = -1;  in main()
303 		if (c == -1)  in main()
339 	argc -= optind;  in main()