Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  * (C) Copyright David Gibson <dwg@au1.ibm.com>, IBM Corporation.  2005.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) #include "dtc.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) #include <dirent.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) #include <sys/stat.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) static struct node *read_fstree(const char *dirname)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 	DIR *d;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 	struct dirent *de;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 	struct stat st;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 	struct node *tree;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 	d = opendir(dirname);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 	if (!d)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 		die("Couldn't opendir() \"%s\": %s\n", dirname, strerror(errno));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 	tree = build_node(NULL, NULL, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 	while ((de = readdir(d)) != NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 		char *tmpname;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 		if (streq(de->d_name, ".")
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 		    || streq(de->d_name, ".."))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 			continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 		tmpname = join_path(dirname, de->d_name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 		if (stat(tmpname, &st) < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 			die("stat(%s): %s\n", tmpname, strerror(errno));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 		if (S_ISREG(st.st_mode)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 			struct property *prop;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 			FILE *pfile;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 			pfile = fopen(tmpname, "rb");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 			if (! pfile) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 				fprintf(stderr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 					"WARNING: Cannot open %s: %s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 					tmpname, strerror(errno));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 			} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 				prop = build_property(xstrdup(de->d_name),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) 						      data_copy_file(pfile,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 								     st.st_size),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) 						      NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) 				add_property(tree, prop);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) 				fclose(pfile);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) 			}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) 		} else if (S_ISDIR(st.st_mode)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) 			struct node *newchild;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) 			newchild = read_fstree(tmpname);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) 			newchild = name_node(newchild, xstrdup(de->d_name));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) 			add_child(tree, newchild);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) 		free(tmpname);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) 	closedir(d);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) 	return tree;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) struct dt_info *dt_from_fs(const char *dirname)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) 	struct node *tree;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) 	tree = read_fstree(dirname);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) 	tree = name_node(tree, "");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) 	return build_dt_info(DTSF_V1, NULL, tree, guess_boot_cpuid(tree));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) }