amiro-os / components / bus / i2c / I2CMultiplexer.cpp @ a47d64ad
History | View | Annotate | Download (1.015 KB)
1 |
#include <amiro/bus/i2c/I2CMultiplexer.hpp> |
---|---|
2 |
|
3 |
namespace amiro {
|
4 |
|
5 |
I2CMultiplexer:: |
6 |
I2CMultiplexer(I2CDriver *driver) : |
7 |
driver(driver) { |
8 |
|
9 |
#if CH_USE_MUTEXES
|
10 |
chMtxInit(&this->mutex);
|
11 |
#else
|
12 |
chSemInit(&this->semaphore, 1); |
13 |
#endif /* CH_USE_MUTEXES */ |
14 |
|
15 |
}; |
16 |
|
17 |
I2CMultiplexer:: |
18 |
~I2CMultiplexer() { |
19 |
|
20 |
} |
21 |
|
22 |
i2cflags_t |
23 |
I2CMultiplexer:: |
24 |
getErrors() { |
25 |
|
26 |
return this->driver->getErrors(); |
27 |
|
28 |
} |
29 |
|
30 |
msg_t |
31 |
I2CMultiplexer:: |
32 |
masterTransmit(const I2CTxParams *params, systime_t timeout) {
|
33 |
|
34 |
return this->driver->masterTransmit(params, timeout); |
35 |
|
36 |
} |
37 |
|
38 |
msg_t |
39 |
I2CMultiplexer:: |
40 |
masterReceive(const I2CRxParams *params, systime_t timeout) {
|
41 |
|
42 |
return this->driver->masterReceive(params, timeout); |
43 |
|
44 |
} |
45 |
|
46 |
void
|
47 |
I2CMultiplexer:: |
48 |
acquireBus() { |
49 |
|
50 |
#if CH_USE_MUTEXES
|
51 |
chMtxLock(&this->mutex);
|
52 |
#elif CH_USE_SEMAPHORES
|
53 |
chSemWait(&this->semaphore);
|
54 |
#endif
|
55 |
|
56 |
this->driver->acquireBus();
|
57 |
} |
58 |
|
59 |
void
|
60 |
I2CMultiplexer:: |
61 |
releaseBus() { |
62 |
|
63 |
this->driver->releaseBus();
|
64 |
|
65 |
#if CH_USE_MUTEXES
|
66 |
chMtxUnlock(); |
67 |
#elif CH_USE_SEMAPHORES
|
68 |
chSemSignal(&this->semaphore);
|
69 |
#endif
|
70 |
|
71 |
} |
72 |
|
73 |
} /* amiro */
|