80 lines
2.3 KiB
C++
80 lines
2.3 KiB
C++
#ifndef LINUX_OBC_PTME_H_
|
|
#define LINUX_OBC_PTME_H_
|
|
|
|
#include <fsfw_hal/common/gpio/gpioDefinitions.h>
|
|
#include <fsfw_hal/linux/gpio/LinuxLibgpioIF.h>
|
|
|
|
#include <cstring>
|
|
#include <unordered_map>
|
|
|
|
#include "OBSWConfig.h"
|
|
#include "fsfw/returnvalues/HasReturnvaluesIF.h"
|
|
#include "linux/obc/PtmeIF.h"
|
|
#include "linux/obc/VcInterfaceIF.h"
|
|
|
|
/**
|
|
* @brief This class handles the interfacing to the telemetry (PTME) IP core responsible for the
|
|
* encoding of telemetry packets according to the CCSDS standards CCSDS 131.0-B-3 (TM
|
|
* Synchro- nization and channel coding) and CCSDS 132.0-B-2 (TM Space Data Link Protocoll). The IP
|
|
* cores are implemented on the programmable logic and are accessible through the linux UIO driver.
|
|
*/
|
|
class Ptme : public PtmeIF, public SystemObject, public HasReturnvaluesIF {
|
|
public:
|
|
using VcId_t = uint8_t;
|
|
|
|
/**
|
|
* @brief Constructor
|
|
*
|
|
* @param objectId
|
|
*/
|
|
Ptme(object_id_t objectId);
|
|
virtual ~Ptme();
|
|
|
|
ReturnValue_t initialize() override;
|
|
ReturnValue_t writeToVc(uint8_t vcId, const uint8_t* data, size_t size) override;
|
|
|
|
/**
|
|
* @brief This function adds the reference to a virtual channel interface to the vcInterface
|
|
* map.
|
|
*/
|
|
void addVcInterface(VcId_t vcId, VcInterfaceIF* vc);
|
|
|
|
private:
|
|
static const uint8_t INTERFACE_ID = CLASS_ID::PTME;
|
|
|
|
static const ReturnValue_t UNKNOWN_VC_ID = MAKE_RETURN_CODE(0xA0);
|
|
|
|
/**
|
|
* Configuration bits:
|
|
* bit[1:0]: Size of data (1,2,3 or 4 bytes). 1 Byte <=> b00
|
|
* bit[2]: Set this bit to 1 to abort a transfered packet
|
|
* bit[3]: Signals to PTME the start of a new telemetry packet
|
|
*/
|
|
static const uint32_t PTME_CONFIG_START = 0x8;
|
|
|
|
/**
|
|
* Writing this word to the ptme base address signals to the PTME that a complete tm packet has
|
|
* been transferred.
|
|
*/
|
|
static const uint32_t PTME_CONFIG_END = 0x0;
|
|
|
|
/**
|
|
* Writing to this offset within the PTME memory space will insert data for encoding to the
|
|
* PTME IP core.
|
|
* The address offset is 0x400 (= 4 * 256)
|
|
*/
|
|
static const int PTME_DATA_REG_OFFSET = 256;
|
|
|
|
/** The file descriptor of the UIO driver */
|
|
int fd = 0;
|
|
|
|
uint32_t* ptmeBaseAddress = nullptr;
|
|
|
|
using VcInterfaceMap = std::unordered_map<VcId_t, VcInterfaceIF*>;
|
|
using VcInterfaceMapIter = VcInterfaceMap::iterator;
|
|
|
|
VcInterfaceMap vcInterfaceMap;
|
|
};
|
|
|
|
#endif /* LINUX_OBC_PTME_H_ */
|