| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | #include <Fw/FPrimeBasicTypes.hpp> | ||
| 2 | #include <Fw/Types/Assert.hpp> | ||
| 3 | #include <Svc/RateGroupDriver/RateGroupDriver.hpp> | ||
| 4 | #include <cstdio> | ||
| 5 | #include <cstring> | ||
| 6 | |||
| 7 | namespace Svc { | ||
| 8 | |||
| 9 | 2 | RateGroupDriver::RateGroupDriver(const char* compName) | |
| 10 | 2 | : RateGroupDriverComponentBase(compName), m_ticks(0), m_rollover(1), m_configured(false) {} | |
| 11 | |||
| 12 | 3 | void RateGroupDriver::configure(const DividerSet& dividerSet) { | |
| 13 | // verify port/table size matches | ||
| 14 | static_assert(FW_NUM_ARRAY_ELEMENTS(m_dividers) == NUM_CYCLEOUT_OUTPUT_PORTS, | ||
| 15 | "Divider table size must match the number of cycle output ports"); | ||
| 16 | // reset rollover so a reconfigure does not multiply onto the prior product | ||
| 17 | 3 | this->m_rollover = 1; | |
| 18 | // copy provided array of dividers | ||
| 19 |
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12 | for (FwIndexType entry = 0; entry < RateGroupDriver::DIVIDER_SIZE; entry++) { |
| 20 | // A port with an offset equal or bigger than the divisor is not accepted because it would never be called | ||
| 21 | 9 | FW_ASSERT((dividerSet.dividers[entry].offset == 0) || | |
| 22 | (dividerSet.dividers[entry].offset < dividerSet.dividers[entry].divisor), | ||
| 23 | static_cast<FwAssertArgType>(dividerSet.dividers[entry].offset), | ||
| 24 | static_cast<FwAssertArgType>(dividerSet.dividers[entry].divisor)); | ||
| 25 | 9 | this->m_dividers[entry] = dividerSet.dividers[entry]; | |
| 26 | // rollover value should be product of all dividers to make sure integer rollover doesn't jump cycles | ||
| 27 | // only use non-zero dividers | ||
| 28 |
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9 | if (dividerSet.dividers[entry].divisor != 0) { |
| 29 | // Ensure that rollover will not overflow | ||
| 30 | 9 | FW_ASSERT((std::numeric_limits<FwSizeType>::max() / dividerSet.dividers[entry].divisor) >= this->m_rollover, | |
| 31 | static_cast<FwAssertArgType>(this->m_rollover), | ||
| 32 | static_cast<FwAssertArgType>(dividerSet.dividers[entry].divisor)); | ||
| 33 | 9 | this->m_rollover *= dividerSet.dividers[entry].divisor; | |
| 34 | } | ||
| 35 | } | ||
| 36 | 3 | this->m_configured = true; | |
| 37 | 3 | } | |
| 38 | |||
| 39 | 4 | RateGroupDriver::~RateGroupDriver() {} | |
| 40 | |||
| 41 | 120 | void RateGroupDriver::CycleIn_handler(FwIndexType portNum, Os::RawTime& cycleStart) { | |
| 42 | // Make sure that the dividers have been configured: | ||
| 43 | // If this asserts, add the configure() call to initialization. | ||
| 44 | 120 | FW_ASSERT(this->m_configured); | |
| 45 | |||
| 46 | // Loop through each divider. For a given port, the port will be called when the divider value | ||
| 47 | // divides evenly into the number of ticks. For example, if the divider value for a port is 4, | ||
| 48 | // it would be called every fourth invocation of the CycleIn port. | ||
| 49 |
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480 | for (FwIndexType entry = 0; entry < RateGroupDriver::DIVIDER_SIZE; entry++) { |
| 50 |
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360 | if (this->m_dividers[entry].divisor != 0) { |
| 51 |
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360 | if (this->isConnected_CycleOut_OutputPort(static_cast<FwIndexType>(entry))) { |
| 52 |
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360 | if ((this->m_ticks % this->m_dividers[entry].divisor) == this->m_dividers[entry].offset) { |
| 53 | 220 | this->CycleOut_out(static_cast<FwIndexType>(entry), cycleStart); | |
| 54 | } | ||
| 55 | } | ||
| 56 | } | ||
| 57 | } | ||
| 58 | |||
| 59 | // rollover the tick value when the tick count reaches the rollover value | ||
| 60 | // the rollover value is the product of all the dividers. See comment in constructor. | ||
| 61 | 120 | FW_ASSERT(this->m_rollover > 0); | |
| 62 |
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120 | this->m_ticks = (this->m_ticks + 1) % this->m_rollover; |
| 63 | 120 | } | |
| 64 | |||
| 65 | } // namespace Svc | ||
| 66 |