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 | }; |