amiro-os / components / eeprom / eeprom.cpp @ d4c6efa9
History | View | Annotate | Download (1.703 KB)
1 | 58fe0e0b | Thomas Schöpping | #include <ch.hpp> |
---|---|---|---|
2 | #include <hal.h> |
||
3 | |||
4 | #include <amiro/eeprom/eeprom.hpp> |
||
5 | |||
6 | namespace amiro {
|
||
7 | |||
8 | #if HAL_USE_I2C
|
||
9 | EEPROM:: |
||
10 | EEPROM(const struct BaseFileStreamVMT* vmt, size_t size, uint8_t page_size, uint16_t max_t_wr, uint8_t sla, I2CDriver* i2c_driver) : |
||
11 | error(EEPROM_ERROR_NONE), |
||
12 | position(0x00u),
|
||
13 | size(size), |
||
14 | page_size(page_size), |
||
15 | max_t_wr(max_t_wr), |
||
16 | i2c_driver(i2c_driver) { |
||
17 | |||
18 | #if CH_USE_MUTEXES
|
||
19 | chMtxInit(&this->mutex);
|
||
20 | #elif CH_USE_SEMAPHORES
|
||
21 | chSemInit(&this->semaphore, 1); |
||
22 | #endif
|
||
23 | |||
24 | this->bfs.vmt = vmt;
|
||
25 | this->i2c_txparams.addr = sla;
|
||
26 | |||
27 | } |
||
28 | #endif /* HAL_USE_I2C */ |
||
29 | |||
30 | #if HAL_USE_SPI
|
||
31 | EEPROM:: |
||
32 | EEPROM(const struct BaseFileStreamVMT* vmt, size_t size, uint8_t page_size, uint16_t max_t_wr, HWSPIDriver* spi_driver) : |
||
33 | error(EEPROM_ERROR_NONE), |
||
34 | position(0x00u),
|
||
35 | size(size), |
||
36 | page_size(page_size), |
||
37 | max_t_wr(max_t_wr), |
||
38 | spi_driver(spi_driver) { |
||
39 | |||
40 | #if CH_USE_MUTEXES
|
||
41 | chMtxInit(&this->mutex);
|
||
42 | #elif CH_USE_SEMAPHORES
|
||
43 | chSemInit(&this->semaphore, 1); |
||
44 | #endif
|
||
45 | |||
46 | this->bfs.vmt = vmt;
|
||
47 | |||
48 | } |
||
49 | #endif /* HAL_USE_SPI */ |
||
50 | |||
51 | EEPROM:: |
||
52 | ~EEPROM() { |
||
53 | |||
54 | } |
||
55 | |||
56 | void
|
||
57 | EEPROM:: |
||
58 | acquire() { |
||
59 | |||
60 | #if CH_USE_MUTEXES
|
||
61 | chMtxLock(&this->mutex);
|
||
62 | #elif CH_USE_SEMAPHORES
|
||
63 | chSemWait(&this->semaphore);
|
||
64 | #endif
|
||
65 | |||
66 | } |
||
67 | |||
68 | void
|
||
69 | EEPROM:: |
||
70 | release() { |
||
71 | |||
72 | #if CH_USE_MUTEXES
|
||
73 | chMtxUnlock(); |
||
74 | #elif CH_USE_SEMAPHORES
|
||
75 | chSemSignal(&this->semaphore);
|
||
76 | #endif
|
||
77 | |||
78 | } |
||
79 | |||
80 | int
|
||
81 | EEPROM:: |
||
82 | geterror(void* instance) {
|
||
83 | |||
84 | return (int) ((EEPROM*) (instance))->error; |
||
85 | |||
86 | } |
||
87 | |||
88 | fileoffset_t |
||
89 | EEPROM:: |
||
90 | getsize(void *instance) {
|
||
91 | |||
92 | return ((EEPROM*) (instance))->size;
|
||
93 | |||
94 | } |
||
95 | |||
96 | fileoffset_t |
||
97 | EEPROM:: |
||
98 | getposition(void* instance) {
|
||
99 | |||
100 | return ((EEPROM*) (instance))->position;
|
||
101 | |||
102 | |||
103 | } |
||
104 | |||
105 | fileoffset_t |
||
106 | EEPROM:: |
||
107 | lseek(void *instance, fileoffset_t offset) {
|
||
108 | |||
109 | ((EEPROM*) (instance))->position = offset; |
||
110 | return FILE_OK;
|
||
111 | |||
112 | } |
||
113 | |||
114 | }; |