amiro-os / include / amiro / eeprom / at24.hpp @ c9fa414d
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1 | 58fe0e0b | Thomas Schöpping | #ifndef AT24_HPP_
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2 | #define AT24_HPP_
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3 | |||
4 | #include <ch.hpp> |
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5 | #include <hal.h> |
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6 | |||
7 | #include <amiro/eeprom/eeprom.hpp> |
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8 | |||
9 | namespace amiro {
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10 | |||
11 | class I2CDriver; |
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12 | |||
13 | class AT24 : public EEPROM { |
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14 | |||
15 | enum {
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16 | AT24_SLA = 0x50u,
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17 | }; |
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18 | |||
19 | enum {
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20 | AT24_MAX_PAGE_SIZE = 8,
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21 | }; |
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22 | |||
23 | public:
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24 | |||
25 | /**
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26 | * Return types of getCheck()
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27 | */
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28 | enum {
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29 | CHECK_OK = 0x00u,
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30 | CHECK_READ_FAIL = 0x01u,
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31 | CHECK_WRITE_FAIL = 0x02u,
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32 | CHECK_CHKSUM_FAIL = 0x03u,
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33 | }; |
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34 | |||
35 | AT24(size_t size, uint8_t page_size, uint16_t max_t_wr, I2CDriver* i2c_driver); |
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36 | ~AT24(); |
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37 | |||
38 | static msg_t poll_ack(void* instance); |
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39 | static size_t write(void* instance, const uint8_t* bp, size_t n); |
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40 | static size_t read(void* instance, uint8_t* bp, size_t n); |
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41 | static uint32_t close(void* instance); |
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42 | |||
43 | }; |
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44 | |||
45 | } /* amiro */
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46 | |||
47 | #endif /* AT24_HPP_ */ |