eive-obsw/bsp_q7s/comIF/I2cComIF.h
2021-01-08 09:34:43 +01:00

50 lines
1.4 KiB
C++

#ifndef BSP_Q7S_COMIF_I2COMIF_H_
#define BSP_Q7S_COMIF_I2COMIF_H_
#include <fsfw/objectmanager/SystemObject.h>
#include <fsfw/devicehandlers/DeviceCommunicationIF.h>
#include <bsp_q7s/comIF/cookies/I2cCookie.h>
#include <unordered_map>
#include <vector>
/**
* @brief This is the communication interface for i2c devices connected
* to a system running a linux OS.
*
* @author J. Meier
*/
class I2cComIF: public DeviceCommunicationIF, public SystemObject {
public:
I2cComIF(object_id_t objectId);
virtual ~I2cComIF();
ReturnValue_t initializeInterface(CookieIF * cookie) override;
ReturnValue_t sendMessage(CookieIF *cookie,const uint8_t *sendData,
size_t sendLen) override;
ReturnValue_t getSendSuccess(CookieIF *cookie) override;
ReturnValue_t requestReceiveMessage(CookieIF *cookie,
size_t requestLen) override;
ReturnValue_t readReceivedMessage(CookieIF *cookie, uint8_t **buffer,
size_t *size) override;
private:
typedef struct I2cInstance {
int fileDescriptor;
std::vector<uint8_t> replyBuffer;
size_t replyLen;
} I2cInstance_t;
using I2cDeviceMap = std::unordered_map<address_t, I2cInstance_t>;
using I2cDeviceMapIter = I2cDeviceMap::iterator;
/* In this map all i2c devices will be registered with their address and
* the appropriate file descriptor will be stored */
I2cDeviceMap i2cDeviceMap;
I2cDeviceMapIter i2cDeviceMapIter;
};
#endif /* BSP_Q7S_COMIF_I2COMIF_H_ */