amiro-os / components / eeprom / eeprom.cpp @ 3aee55de
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1 | 58fe0e0b | Thomas Schöpping | #include <ch.hpp> |
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2 | #include <hal.h> |
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3 | |||
4 | #include <amiro/eeprom/eeprom.hpp> |
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5 | |||
6 | namespace amiro {
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7 | |||
8 | #if HAL_USE_I2C
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9 | EEPROM:: |
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10 | EEPROM(const struct BaseFileStreamVMT* vmt, size_t size, uint8_t page_size, uint16_t max_t_wr, uint8_t sla, I2CDriver* i2c_driver) : |
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11 | error(EEPROM_ERROR_NONE), |
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12 | position(0x00u),
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13 | size(size), |
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14 | page_size(page_size), |
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15 | max_t_wr(max_t_wr), |
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16 | i2c_driver(i2c_driver) { |
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17 | |||
18 | #if CH_USE_MUTEXES
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19 | chMtxInit(&this->mutex);
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20 | #elif CH_USE_SEMAPHORES
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21 | chSemInit(&this->semaphore, 1); |
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22 | #endif
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23 | |||
24 | this->bfs.vmt = vmt;
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25 | this->i2c_txparams.addr = sla;
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26 | |||
27 | } |
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28 | #endif /* HAL_USE_I2C */ |
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29 | |||
30 | #if HAL_USE_SPI
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31 | EEPROM:: |
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32 | EEPROM(const struct BaseFileStreamVMT* vmt, size_t size, uint8_t page_size, uint16_t max_t_wr, HWSPIDriver* spi_driver) : |
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33 | error(EEPROM_ERROR_NONE), |
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34 | position(0x00u),
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35 | size(size), |
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36 | page_size(page_size), |
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37 | max_t_wr(max_t_wr), |
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38 | spi_driver(spi_driver) { |
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39 | |||
40 | #if CH_USE_MUTEXES
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41 | chMtxInit(&this->mutex);
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42 | #elif CH_USE_SEMAPHORES
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43 | chSemInit(&this->semaphore, 1); |
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44 | #endif
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45 | |||
46 | this->bfs.vmt = vmt;
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47 | |||
48 | } |
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49 | #endif /* HAL_USE_SPI */ |
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50 | |||
51 | EEPROM:: |
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52 | ~EEPROM() { |
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53 | |||
54 | } |
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55 | |||
56 | void
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57 | EEPROM:: |
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58 | acquire() { |
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59 | |||
60 | #if CH_USE_MUTEXES
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61 | chMtxLock(&this->mutex);
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62 | #elif CH_USE_SEMAPHORES
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63 | chSemWait(&this->semaphore);
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64 | #endif
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65 | |||
66 | } |
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67 | |||
68 | void
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69 | EEPROM:: |
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70 | release() { |
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71 | |||
72 | #if CH_USE_MUTEXES
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73 | chMtxUnlock(); |
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74 | #elif CH_USE_SEMAPHORES
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75 | chSemSignal(&this->semaphore);
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76 | #endif
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77 | |||
78 | } |
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79 | |||
80 | int
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81 | EEPROM:: |
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82 | geterror(void* instance) {
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83 | |||
84 | return (int) ((EEPROM*) (instance))->error; |
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85 | |||
86 | } |
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87 | |||
88 | fileoffset_t |
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89 | EEPROM:: |
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90 | getsize(void *instance) {
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91 | |||
92 | return ((EEPROM*) (instance))->size;
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93 | |||
94 | } |
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95 | |||
96 | fileoffset_t |
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97 | EEPROM:: |
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98 | getposition(void* instance) {
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99 | |||
100 | return ((EEPROM*) (instance))->position;
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101 | |||
102 | |||
103 | } |
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104 | |||
105 | fileoffset_t |
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106 | EEPROM:: |
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107 | lseek(void *instance, fileoffset_t offset) {
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108 | |||
109 | ((EEPROM*) (instance))->position = offset; |
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110 | return FILE_OK;
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111 | |||
112 | } |
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113 | |||
114 | }; |