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1 /* |
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2 This file is part of CanFestival, a library implementing CanOpen Stack. |
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3 |
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4 Author: CANopen Canada (canfestival@canopencanada.ca) |
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5 |
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6 See COPYING file for copyrights details. |
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7 |
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8 This library is free software; you can redistribute it and/or |
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9 modify it under the terms of the GNU Lesser General Public |
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10 License as published by the Free Software Foundation; either |
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11 version 2.1 of the License, or (at your option) any later version. |
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12 |
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13 This library is distributed in the hope that it will be useful, |
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14 but WITHOUT ANY WARRANTY; without even the implied warranty of |
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15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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16 Lesser General Public License for more details. |
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17 |
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18 You should have received a copy of the GNU Lesser General Public |
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19 License along with this library; if not, write to the Free Software |
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20 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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21 */ |
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22 /* |
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23 nvram.c |
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24 |
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25 save the content of the dictionnary into non-volatile memory |
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26 the order of storage must be the same as the order of retrieving |
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27 |
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28 note (1) |
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29 may need to store/retrieve specific data from non-volatile |
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30 in that case, we need to address where it is stored |
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31 without storing the address in a vector |
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32 - solution 1 : walk throught the list without action until the |
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33 sought object is found. |
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34 |
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35 */ |
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36 |
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37 #include <stdio.h> |
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38 #include <data.h> |
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39 #include <applicfg.h> |
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40 #include <objdictdef.h> |
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41 #include "can_driver.h" |
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42 |
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43 |
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44 int canSaveData(indextable *dict, int max_index) |
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45 { |
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46 int i, j; |
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47 |
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48 if (nvram_open() < 0) |
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49 return -1; |
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50 |
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51 subindex *pSubindex; |
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52 |
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53 for(i=0; i<max_index; i++) |
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54 { |
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55 pSubindex = dict[i].pSubindex; |
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56 |
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57 for(j=0; j<dict[i].bSubCount; j++) |
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58 { |
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59 /* check pSubindex[j].bAccessType */ |
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60 |
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61 nvram_write(pSubindex[j].bDataType, |
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62 pSubindex[j].bAccessType, |
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63 pSubindex[j].pObject); |
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64 } |
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65 } |
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66 |
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67 nvram_close(); |
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68 |
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69 return 0; |
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70 } |
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71 |
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72 |
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73 int canReadData(indextable *dict, int max_index) |
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74 { |
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75 int i, j; |
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76 |
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77 subindex *pSubindex; |
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78 |
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79 union |
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80 { |
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81 UNS8 u8; |
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82 UNS16 u16; |
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83 UNS32 u32; |
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84 |
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85 float r4; |
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86 double r8; |
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87 } object; |
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88 |
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89 if (nvram_open() < 0) |
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90 return -1; |
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91 |
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92 for(i=0; i<max_index; i++) |
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93 { |
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94 pSubindex = dict[i].pSubindex; |
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95 |
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96 for(j=0; j<dict[i].bSubCount; j++) |
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97 { |
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98 |
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99 nvram_read(pSubindex[j].bDataType, |
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100 pSubindex[j].bAccessType, |
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101 (void *)&object); |
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102 } |
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103 } |
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104 |
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105 nvram_close(); |
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106 |
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107 return 0; |
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108 } |
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109 |