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annotate ffstools/tiffs-mkfs/ffsparam.c @ 850:52f507580d78

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CHANGES: document all current lunadrv changes
author Mychaela Falconia <falcon@freecalypso.org>
date Wed, 18 Aug 2021 04:30:21 +0000
parents 178ed445021d
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
705
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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1 #include <sys/types.h>
12ae93940467 tiffs-mkfs program written, compiles
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2 #include <sys/param.h>
12ae93940467 tiffs-mkfs program written, compiles
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3 #include <ctype.h>
12ae93940467 tiffs-mkfs program written, compiles
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4 #include <stdio.h>
12ae93940467 tiffs-mkfs program written, compiles
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5 #include <stdint.h>
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6 #include <stdlib.h>
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7 #include <string.h>
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8 #include <strings.h>
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9 #include "struct.h"
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10 #include "globals.h"
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11
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12 void
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13 parse_org_arg(arg)
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14 char *arg;
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15 {
12ae93940467 tiffs-mkfs program written, compiles
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16 char *cp;
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17
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18 cp = index(arg, 'x');
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19 if (!cp || !isdigit(cp[1]) || !isdigit(arg[0])) {
12ae93940467 tiffs-mkfs program written, compiles
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20 fprintf(stderr,
12ae93940467 tiffs-mkfs program written, compiles
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21 "error: TIFFS organization argument \"%s\" is invalid\n", arg);
12ae93940467 tiffs-mkfs program written, compiles
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22 exit(1);
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23 }
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24 *cp++ = '\0';
12ae93940467 tiffs-mkfs program written, compiles
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25 if (!strcmp(arg, "8"))
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26 ffs_sector_size = 0x2000;
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27 else if (!strcmp(arg, "16"))
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28 ffs_sector_size = 0x4000;
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29 else if (!strcmp(arg, "32"))
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30 ffs_sector_size = 0x8000;
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31 else if (!strcmp(arg, "64"))
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32 ffs_sector_size = 0x10000;
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33 else if (!strcmp(arg, "128"))
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34 ffs_sector_size = 0x20000;
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35 else if (!strcmp(arg, "256"))
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36 ffs_sector_size = 0x40000;
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37 else {
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38 fprintf(stderr,
12ae93940467 tiffs-mkfs program written, compiles
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39 "error: \"%s\" is not a recognized flash sector size\n",
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40 arg);
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41 exit(1);
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42 }
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43 ffs_nsectors = atoi(cp);
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44 if (ffs_nsectors < 3 || ffs_nsectors > 128) {
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45 fprintf(stderr,
12ae93940467 tiffs-mkfs program written, compiles
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46 "error: \"%s\" is not a reasonable number of FFS sectors\n",
12ae93940467 tiffs-mkfs program written, compiles
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47 cp);
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48 exit(1);
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49 }
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50 }
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51
12ae93940467 tiffs-mkfs program written, compiles
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52 void
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53 preen_chunk_size_max()
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54 {
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55 if (chunk_size_max) {
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56 if (chunk_size_max > ffs_sector_size / 2) {
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57 fprintf(stderr,
12ae93940467 tiffs-mkfs program written, compiles
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58 "error: max chunk size specified with -c is too large\n");
12ae93940467 tiffs-mkfs program written, compiles
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59 exit(1);
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60 }
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61 return;
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62 }
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63 /* default matching TI's code */
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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64 if (ffs_sector_size * ffs_nsectors > 1024*1024)
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65 chunk_size_max = 8192;
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66 else if (ffs_sector_size / 8 < 2048)
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67 chunk_size_max = ffs_sector_size / 8;
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68 else
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69 chunk_size_max = 2048;
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70 }
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71
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72 void
717
178ed445021d tiffs-mkfs: journal creation implemented
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73 preen_journal_size()
705
12ae93940467 tiffs-mkfs program written, compiles
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74 {
717
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75 if (journal_size)
705
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76 return;
12ae93940467 tiffs-mkfs program written, compiles
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77 /* default matching TI's code */
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78 journal_size = ffs_sector_size >> 4;
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79 if (journal_size < 1024)
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80 journal_size = 1024;
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81 }
717
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82
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83 void
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84 preen_block_files_max()
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85 {
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86 unsigned local_journal_size;
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87
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88 if (block_files_max)
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89 return;
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90 /* default matching TI's code */
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91 local_journal_size = ffs_sector_size >> 4;
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92 if (local_journal_size < 1024)
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93 local_journal_size = 1024;
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94 block_files_max = (local_journal_size >> 4) - 6;
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95 }