amiro-os / components / bus / i2c / I2CMultiplexer.cpp @ eef47799
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| 1 | 58fe0e0b | Thomas Schöpping | #include <amiro/bus/i2c/I2CMultiplexer.hpp> |
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| 2 | |||
| 3 | namespace amiro {
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| 4 | |||
| 5 | I2CMultiplexer:: |
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| 6 | I2CMultiplexer(I2CDriver *driver) : |
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| 7 | driver(driver) {
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| 8 | |||
| 9 | #if CH_USE_MUTEXES
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| 10 | chMtxInit(&this->mutex);
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| 11 | #else
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| 12 | chSemInit(&this->semaphore, 1); |
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| 13 | #endif /* CH_USE_MUTEXES */ |
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| 14 | |||
| 15 | }; |
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| 16 | |||
| 17 | I2CMultiplexer:: |
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| 18 | ~I2CMultiplexer() {
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| 19 | |||
| 20 | } |
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| 21 | |||
| 22 | i2cflags_t |
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| 23 | I2CMultiplexer:: |
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| 24 | getErrors() {
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| 25 | |||
| 26 | return this->driver->getErrors(); |
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| 27 | |||
| 28 | } |
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| 29 | |||
| 30 | msg_t |
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| 31 | I2CMultiplexer:: |
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| 32 | masterTransmit(const I2CTxParams *params, systime_t timeout) {
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| 33 | |||
| 34 | return this->driver->masterTransmit(params, timeout); |
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| 35 | |||
| 36 | } |
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| 37 | |||
| 38 | msg_t |
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| 39 | I2CMultiplexer:: |
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| 40 | masterReceive(const I2CRxParams *params, systime_t timeout) {
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| 41 | |||
| 42 | return this->driver->masterReceive(params, timeout); |
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| 43 | |||
| 44 | } |
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| 45 | |||
| 46 | void
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| 47 | I2CMultiplexer:: |
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| 48 | acquireBus() {
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| 49 | |||
| 50 | #if CH_USE_MUTEXES
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| 51 | chMtxLock(&this->mutex);
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| 52 | #elif CH_USE_SEMAPHORES
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| 53 | chSemWait(&this->semaphore);
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| 54 | #endif
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| 55 | |||
| 56 | this->driver->acquireBus();
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| 57 | } |
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| 58 | |||
| 59 | void
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| 60 | I2CMultiplexer:: |
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| 61 | releaseBus() {
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| 62 | |||
| 63 | this->driver->releaseBus();
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| 64 | |||
| 65 | #if CH_USE_MUTEXES
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| 66 | chMtxUnlock(); |
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| 67 | #elif CH_USE_SEMAPHORES
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| 68 | chSemSignal(&this->semaphore);
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| 69 | #endif
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| 70 | |||
| 71 | } |
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| 72 | |||
| 73 | } /* amiro */ |