1 // SPDX-License-Identifier: GPL-2.0-only
5  * (c) Copyright 2007 Hewlett-Packard Development Company, L.P.
26 	int fd, rc;  in map_mem()  local
31 	if (fd == -1) {  in map_mem()
33 		return -1;  in map_mem()
37 		rc = ioctl(fd, PCIIOC_MMAP_IS_MEM);  in map_mem()
38 		if (rc == -1)  in map_mem()
52 	rc = munmap(addr, length);  in map_mem()
53 	if (rc == -1) {  in map_mem()
55 		return -1;  in map_mem()
65 	char *name, *path2;  in scan_tree()  local
66 	int i, n, r, rc = 0, result = 0;  in scan_tree()  local
72 		return -1;  in scan_tree()
76 		name = namelist[i]->d_name;  in scan_tree()
78 		if (fnmatch(".", name, 0) == 0)  in scan_tree()
80 		if (fnmatch("..", name, 0) == 0)  in scan_tree()
83 		path2 = malloc(strlen(path) + strlen(name) + 3);  in scan_tree()
86 		strcat(path2, name);  in scan_tree()
88 		if (fnmatch(file, name, 0) == 0) {  in scan_tree()
89 			rc = map_mem(path2, offset, length, touch);  in scan_tree()
90 			if (rc == 0)  in scan_tree()
91 …fprintf(stderr, "PASS: %s 0x%lx-0x%lx is %s\n", path2, offset, offset + length, touch ? "readable"…  in scan_tree()
92 			else if (rc > 0)  in scan_tree()
93 				fprintf(stderr, "PASS: %s 0x%lx-0x%lx not mappable\n", path2, offset, offset + length);  in scan_tree()
95 				fprintf(stderr, "FAIL: %s 0x%lx-0x%lx not accessible\n", path2, offset, offset + length);  in scan_tree()
96 				return rc;  in scan_tree()
101 				rc = scan_tree(path2, file, offset, length, touch);  in scan_tree()
102 				if (rc < 0)  in scan_tree()
103 					return rc;  in scan_tree()
107 		result |= rc;  in scan_tree()
121 	int fd, rc;  in read_rom()  local
125 	if (fd == -1) {  in read_rom()
127 		return -1;  in read_rom()
130 	rc = write(fd, "1", 2);  in read_rom()
131 	if (rc <= 0) {  in read_rom()
134 		return -1;  in read_rom()
138 		rc = read(fd, buf, sizeof(buf));  in read_rom()
139 		if (rc > 0)  in read_rom()
140 			size += rc;  in read_rom()
141 	} while (rc > 0);  in read_rom()
150 	char *name, *path2;  in scan_rom()  local
151 	int i, n, r, rc = 0, result = 0;  in scan_rom()  local
157 		return -1;  in scan_rom()
161 		name = namelist[i]->d_name;  in scan_rom()
163 		if (fnmatch(".", name, 0) == 0)  in scan_rom()
165 		if (fnmatch("..", name, 0) == 0)  in scan_rom()
168 		path2 = malloc(strlen(path) + strlen(name) + 3);  in scan_rom()
171 		strcat(path2, name);  in scan_rom()
173 		if (fnmatch(file, name, 0) == 0) {  in scan_rom()
174 			rc = read_rom(path2);  in scan_rom()
181 			if (rc > 0)  in scan_rom()
182 				fprintf(stderr, "PASS: %s read %d bytes\n", path2, rc);  in scan_rom()
185 				return rc;  in scan_rom()
190 				rc = scan_rom(path2, file);  in scan_rom()
191 				if (rc < 0)  in scan_rom()
192 					return rc;  in scan_rom()
196 		result |= rc;  in scan_rom()
208 	int rc;  in main()  local
211 		fprintf(stderr, "PASS: /dev/mem 0x0-0xa0000 is readable\n");  in main()
213 		fprintf(stderr, "FAIL: /dev/mem 0x0-0xa0000 not accessible\n");  in main()
219 	 * up a non-responding card by just returning -1, but others will  in main()
223 		fprintf(stderr, "PASS: /dev/mem 0xa0000-0xc0000 is mappable\n");  in main()
225 		fprintf(stderr, "FAIL: /dev/mem 0xa0000-0xc0000 not accessible\n");  in main()
228 		fprintf(stderr, "PASS: /dev/mem 0xc0000-0x100000 is readable\n");  in main()
230 		fprintf(stderr, "FAIL: /dev/mem 0xc0000-0x100000 not accessible\n");  in main()
233 	 * Often you can map all the individual pieces above (0-0xA0000,  in main()
234 	 * 0xA0000-0xC0000, and 0xC0000-0x100000), but can't map the whole  in main()
239 	rc = map_mem("/dev/mem", 0, 1024*1024, 0);  in main()
240 	if (rc == 0)  in main()
241 		fprintf(stderr, "PASS: /dev/mem 0x0-0x100000 is mappable\n");  in main()
242 	else if (rc > 0)  in main()
243 		fprintf(stderr, "PASS: /dev/mem 0x0-0x100000 not mappable\n");  in main()
245 		fprintf(stderr, "FAIL: /dev/mem 0x0-0x100000 not accessible\n");  in main()
259 	return rc;  in main()