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