Annotation of embedtools/src/cfi.c, revision 1.1.2.3
1.1.2.1 misho 1: /*************************************************************************
2: * (C) 2011 AITNET - Sofia/Bulgaria - <office@aitbg.com>
3: * by Michael Pounov <misho@aitbg.com>
4: *
5: * $Author: misho $
1.1.2.3 ! misho 6: * $Id: cfi.c,v 1.1.2.2 2012/04/05 12:27:52 misho Exp $
1.1.2.1 misho 7: *
8: *************************************************************************
9: The ELWIX and AITNET software is distributed under the following
10: terms:
11:
12: All of the documentation and software included in the ELWIX and AITNET
13: Releases is copyrighted by ELWIX - Sofia/Bulgaria <info@elwix.org>
14:
1.1.2.2 misho 15: Copyright 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
1.1.2.1 misho 16: by Michael Pounov <misho@elwix.org>. All rights reserved.
17:
18: Redistribution and use in source and binary forms, with or without
19: modification, are permitted provided that the following conditions
20: are met:
21: 1. Redistributions of source code must retain the above copyright
22: notice, this list of conditions and the following disclaimer.
23: 2. Redistributions in binary form must reproduce the above copyright
24: notice, this list of conditions and the following disclaimer in the
25: documentation and/or other materials provided with the distribution.
26: 3. All advertising materials mentioning features or use of this software
27: must display the following acknowledgement:
28: This product includes software developed by Michael Pounov <misho@elwix.org>
29: ELWIX - Embedded LightWeight unIX and its contributors.
30: 4. Neither the name of AITNET nor the names of its contributors
31: may be used to endorse or promote products derived from this software
32: without specific prior written permission.
33:
34: THIS SOFTWARE IS PROVIDED BY AITNET AND CONTRIBUTORS ``AS IS'' AND
35: ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
36: IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
37: ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
38: FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
39: DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
40: OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
41: HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
42: LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
43: OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
44: SUCH DAMAGE.
45: */
46: #include "global.h"
47:
48:
49: int Verbose;
50: extern char compiled[], compiledby[], compilehost[];
51:
52:
53: static void
54: Usage()
55: {
56: printf( "-= CFI =- Flash interface managment tool\n"
57: "=== %s === %s@%s ===\n\n"
58: " Syntax: cfi [options] <fact|oem|plr> [arg]\n"
59: "\n"
60: "\t-v\t\tVerbose ...\n"
61: "\t-w\t\tWrite operation for oem or plr ...\n"
1.1.2.3 ! misho 62: "\t-f <dev>\tCFI device like [default=/dev/cfi0]...\n"
1.1.2.1 misho 63: "\n", compiled, compiledby, compilehost);
64: }
65:
66: static uint64_t
67: getfactorypr(int fd)
68: {
69: uint64_t v;
70:
71: if (ioctl(fd, CFIOCGFACTORYPR, &v) < 0)
72: printf("Error:: ioctl(CFIOCGFACTORYPR) #%d - %s\n", errno, strerror(errno));
73:
74: return v;
75: }
76:
77: static uint64_t
78: getoempr(int fd)
79: {
80: uint64_t v;
81:
82: if (ioctl(fd, CFIOCGOEMPR, &v) < 0)
83: printf("Error:: ioctl(CFIOCGOEMPR) #%d - %s\n", errno, strerror(errno));
84:
85: return v;
86: }
87:
88: static void
89: setoempr(int fd, uint64_t v)
90: {
91: if (ioctl(fd, CFIOCSOEMPR, &v) < 0)
92: printf("Error:: ioctl(CFIOCSOEMPR) #%d - %s\n", errno, strerror(errno));
93: }
94:
95: static uint32_t
96: getplr(int fd)
97: {
98: uint32_t plr;
99:
100: if (ioctl(fd, CFIOCGPLR, &plr) < 0)
101: printf("Error:: ioctl(CFIOCGPLR) #%d - %s\n", errno, strerror(errno));
102:
103: return plr;
104: }
105:
106: static void
107: setplr(int fd)
108: {
109: if (ioctl(fd, CFIOCSPLR, 0) < 0)
110: printf("Error:: ioctl(CFIOCPLR) #%d - %s\n", errno, strerror(errno));
111: }
112:
113:
114: int
115: main(int argc, char **argv)
116: {
117: char ch, szDev[MAXPATHLEN] = "/dev/cfi0";
118: int d, mode = O_RDONLY;
119:
120: while ((ch = getopt(argc, argv, "vhwf:")) != -1)
121: switch (ch) {
122: case 'f':
123: strlcpy(szDev, optarg, sizeof szDev);
124: break;
125: case 'w':
126: mode = O_WRONLY;
127: break;
128: case 'v':
129: Verbose++;
130: break;
131: case 'h':
132: default:
133: Usage();
134: return 1;
135: }
136: argc -= optind;
137: argv += optind;
138: if (!argc || !*argv) {
139: Usage();
140: return 1;
141: }
142:
143: d = open(szDev, mode);
144: if (d < 0) {
145: printf("Error:: open device %s #%d - %s\n", szDev, errno, strerror(errno));
146: return 2;
147: }
148:
149: if (!strcasecmp(*argv, "fact")) {
150: printf("0x%llx\n", (unsigned long long) getfactorypr(d));
151: } else if (!strcasecmp(*argv, "oem")) {
152: if (mode == O_WRONLY && argv[1])
153: setoempr(d, (uint64_t) strtoull(argv[1], NULL, 0));
154: else
155: printf("0x%llx\n", (unsigned long long) getoempr(d));
156: } else if (!strcasecmp(*argv, "plr")) {
157: if (mode == O_WRONLY /*&& argv[1]*/)
158: setplr(d);
159: else
160: printf("0x%x\n", getplr(d));
161: } else
162: Usage();
163:
164: close(d);
165: return 0;
166: }
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