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annotate gsm-fw/services/ffs/cfgffs.c @ 218:fee45482aa2a

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FFS: hopefully-correct initialization for the FFS_IN_RAM configuration
author Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
date Mon, 06 Jan 2014 08:43:35 +0000
parents 1d87b335fc50
children 4d706a4134b0
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1 /******************************************************************************
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2 * Flash File System (ffs)
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3 * Idea, design and coding by Mads Meisner-Jensen, mmj@ti.com
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4 *
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5 * FFS configuration
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6 *
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7 * $Id: cfgffs.c 1.27 Fri, 19 Dec 2003 12:00:13 +0100 tsj $
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8 *
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9 ******************************************************************************/
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10
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11 #include "../../include/config.h"
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12 #include "ffs.h"
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13 #include "drv.h"
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14 #include "ramffs.h"
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15 #include <string.h>
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16
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17 #if FFS_IN_RAM
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19 extern struct block_info_s ramffs_block_info[RAMFFS_NBLOCKS];
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20
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21 struct dev_s dev = {
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22 .base = _RAMFFS_area,
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23 .binfo = ramffs_block_info,
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24 .manufact = MANUFACT_RAM,
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25 .blocksize = RAMFFS_BLKSIZE_BYTES,
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26 .blocksize_ld = RAMFFS_BLKSIZE_LOG2,
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27 .driver = FFS_DRIVER_RAM,
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28 .numblocks = RAMFFS_NBLOCKS,
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29 };
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30
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31 #elif CONFIG_MOKOFFS
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32
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33 static struct block_info_s mokoffs_blocks[7] = {
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34 { 0x00000, 16 },
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35 { 0x10000, 16 },
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36 { 0x20000, 16 },
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37 { 0x30000, 16 },
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38 { 0x40000, 16 },
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39 { 0x50000, 16 },
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40 { 0x60000, 16 }
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41 };
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42
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43 struct dev_s dev = {
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44 .base = (char *) 0x380000,
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45 .binfo = mokoffs_blocks,
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46 .manufact = MANUFACT_SAMSUNG,
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47 .device = 0x22A0,
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48 .blocksize = 0x10000,
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49 .blocksize_ld = 16,
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50 .driver = FFS_DRIVER_AMD,
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51 .numblocks = 7,
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52 };
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53
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54 #elif CONFIG_PIRHACK_FFS
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55
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56 /* see ../../cfgmagic/feature.pirhack-ffs */
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57
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58 static struct block_info_s pirhack_ffs_blocks[7] = {
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59 { 0x600000, 18 },
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60 { 0x640000, 18 },
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61 { 0x680000, 18 },
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62 { 0x6C0000, 18 },
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63 { 0x700000, 18 },
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64 { 0x740000, 18 },
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65 { 0x780000, 18 }
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66 };
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67
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68 struct dev_s dev = {
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69 .base = (char *) FLASH2_BASE_ADDR,
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70 .binfo = pirhack_ffs_blocks,
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71 .manufact = MANUFACT_AMD,
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72 .blocksize = 0x40000,
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73 .blocksize_ld = 18,
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74 .driver = FFS_DRIVER_AMD,
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75 .numblocks = 7,
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76 };
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77
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78 #else
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79
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80 #error "No valid FFS configuration defined"
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81
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82 #endif
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83
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84 /******************************************************************************
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85 * ffs_is_modify_valid()
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86 ******************************************************************************/
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87
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88 // This is function to be implemented by the application programmer. It is
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89 // called by ffs when a read-only object is about to be modified or
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90 // removed. It should return zero if the operation should be
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91 // disallowed. Returning non-zero means go ahead.
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92 effs_t ffs_is_modifiable(const char *name)
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93 {
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94 // default is to allow any modification of read-only objects.
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95
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96 /*
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97 * TI's original code (conditioned out below) disallowed changing the
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98 * IMEI of a device. FreeCalypso follows a different philosophy:
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99 * 100% user empowerment, hence no artificial obstacles to hacking.
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100 */
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101 #if 0
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102 // example of how to disallow modifying a specific object...
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103 if (strcmp("IMEI", &name[strlen(name) - 4]) == 0)
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104 return 0;
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105 #endif
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106
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107 return 1;
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108 }