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Annotation of embedtools/src/cfi.c, revision 1.2.4.1

1.2       misho       1: /*************************************************************************
                      2:  * (C) 2011 AITNET - Sofia/Bulgaria - <office@aitbg.com>
                      3:  *  by Michael Pounov <misho@aitbg.com>
                      4:  *
                      5:  * $Author: misho $
1.2.4.1 ! misho       6:  * $Id: cfi.c,v 1.2 2012/07/22 22:46:47 misho Exp $
1.2       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: 
1.2.4.1 ! misho      15: Copyright 2004 - 2014
1.2       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"
                     62:                "\t-f <dev>\tCFI device like [default=/dev/cfi0]...\n"
                     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: }