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annotate packages/redboot/current/src/mfill.c @ 264:57f3c72256bb

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Reorg CLI functions into separate files. Update CDL. Fix macros in scripts.
author gthomas
date Tue, 06 Aug 2002 14:29:11 +0000
parents
children c4355f101bf6
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57f3c72256bb Reorg CLI functions into separate files. Update CDL. Fix macros in scripts.
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1 //==========================================================================
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2 //
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3 // mfill.c
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4 //
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5 // RedBoot memory fill (mfill) routine
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6 //
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7 //==========================================================================
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8 //####ECOSGPLCOPYRIGHTBEGIN####
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9 // -------------------------------------------
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10 // This file is part of eCos, the Embedded Configurable Operating System.
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11 // Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
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12 // Copyright (C) 2002 Gary Thomas
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13 //
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14 // eCos is free software; you can redistribute it and/or modify it under
57f3c72256bb Reorg CLI functions into separate files. Update CDL. Fix macros in scripts.
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15 // the terms of the GNU General Public License as published by the Free
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16 // Software Foundation; either version 2 or (at your option) any later version.
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17 //
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18 // eCos is distributed in the hope that it will be useful, but WITHOUT ANY
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19 // WARRANTY; without even the implied warranty of MERCHANTABILITY or
57f3c72256bb Reorg CLI functions into separate files. Update CDL. Fix macros in scripts.
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20 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
57f3c72256bb Reorg CLI functions into separate files. Update CDL. Fix macros in scripts.
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21 // for more details.
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22 //
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23 // You should have received a copy of the GNU General Public License along
57f3c72256bb Reorg CLI functions into separate files. Update CDL. Fix macros in scripts.
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24 // with eCos; if not, write to the Free Software Foundation, Inc.,
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25 // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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26 //
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27 // As a special exception, if other files instantiate templates or use macros
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28 // or inline functions from this file, or you compile this file and link it
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29 // with other works to produce a work based on this file, this file does not
57f3c72256bb Reorg CLI functions into separate files. Update CDL. Fix macros in scripts.
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30 // by itself cause the resulting work to be covered by the GNU General Public
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31 // License. However the source code for this file must still be made available
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32 // in accordance with section (3) of the GNU General Public License.
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33 //
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34 // This exception does not invalidate any other reasons why a work based on
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35 // this file might be covered by the GNU General Public License.
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36 //
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37 // Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
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38 // at http://sources.redhat.com/ecos/ecos-license/
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39 // -------------------------------------------
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40 //####ECOSGPLCOPYRIGHTEND####
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41 //==========================================================================
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42 //#####DESCRIPTIONBEGIN####
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43 //
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44 // Author(s): gthomas
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45 // Contributors: gthomas
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46 // Date: 2002-08-06
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47 // Purpose:
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48 // Description:
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49 //
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50 // This code is part of RedBoot (tm).
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51 //
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52 //####DESCRIPTIONEND####
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53 //
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54 //==========================================================================
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55
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56 #include <redboot.h>
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57
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58 RedBoot_cmd("mfill",
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59 "Fill a block of memory with a pattern",
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60 "-b <location> -l <length> -p <pattern> [-1|-2|-4]",
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61 do_mfill
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62 );
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63
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64 void
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65 do_mfill(int argc, char *argv[])
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66 {
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67 // Fill a region of memory with a pattern
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68 struct option_info opts[6];
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69 unsigned long base, pat;
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70 long len;
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71 bool base_set, len_set, pat_set;
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72 bool set_32bit, set_16bit, set_8bit;
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73
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74 init_opts(&opts[0], 'b', true, OPTION_ARG_TYPE_NUM,
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75 (void **)&base, (bool *)&base_set, "base address");
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76 init_opts(&opts[1], 'l', true, OPTION_ARG_TYPE_NUM,
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77 (void **)&len, (bool *)&len_set, "length");
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78 init_opts(&opts[2], 'p', true, OPTION_ARG_TYPE_NUM,
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79 (void **)&pat, (bool *)&pat_set, "pattern");
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80 init_opts(&opts[3], '4', false, OPTION_ARG_TYPE_FLG,
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81 (void *)&set_32bit, (bool *)0, "fill 32 bit units");
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82 init_opts(&opts[4], '2', false, OPTION_ARG_TYPE_FLG,
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83 (void **)&set_16bit, (bool *)0, "fill 16 bit units");
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84 init_opts(&opts[5], '1', false, OPTION_ARG_TYPE_FLG,
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85 (void **)&set_8bit, (bool *)0, "fill 8 bit units");
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86 if (!scan_opts(argc, argv, 1, opts, 6, 0, 0, "")) {
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87 return;
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88 }
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89 if (!base_set || !len_set) {
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90 diag_printf("usage: mfill -b <addr> -l <length> [-p <pattern>] [-1|-2|-4]\n");
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91 return;
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92 }
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93 if (!pat_set) {
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94 pat = 0;
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95 }
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96 // No checks here
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97 if (set_8bit) {
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98 // Fill 8 bits at a time
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99 while ((len -= sizeof(cyg_uint8)) >= 0) {
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100 *((cyg_uint8 *)base)++ = (cyg_uint8)pat;
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101 }
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102 } else if (set_16bit) {
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103 // Fill 16 bits at a time
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104 while ((len -= sizeof(cyg_uint16)) >= 0) {
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105 *((cyg_uint16 *)base)++ = (cyg_uint16)pat;
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106 }
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107 } else {
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108 // Default - 32 bits
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109 while ((len -= sizeof(cyg_uint32)) >= 0) {
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110 *((cyg_uint32 *)base)++ = (cyg_uint32)pat;
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111 }
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112 }
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113 }