ahb::pe::ahb_target_b Class Reference

#include <ahb_target.h>

Inheritance diagram for ahb::pe::ahb_target_b:

Collaboration diagram for ahb::pe::ahb_target_b:

Public Types
using	payload_type = tlm::tlm_base_protocol_types::tlm_payload_type
using	phase_type = tlm::tlm_base_protocol_types::tlm_phase_type

Public Member Functions
	SC_HAS_PROCESS (ahb_target_b)
void	b_transport (payload_type &trans, sc_core::sc_time &t) override
tlm::tlm_sync_enum	nb_transport_fw (payload_type &trans, phase_type &phase, sc_core::sc_time &t) override
bool	get_direct_mem_ptr (payload_type &trans, tlm::tlm_dmi &dmi_data) override
unsigned int	transport_dbg (payload_type &trans) override
void	set_operation_cb (std::function< unsigned(payload_type &trans)> cb)
	Set the operation callback function. More...
void	operation_resp (payload_type &trans, bool sync=false)

Public Attributes
sc_core::sc_in< bool >	clk_i {"clk_i"}
sc_core::sc_attribute< unsigned >	wr_data_accept_delay {"wr_data_accept_delay", 0}
	the latency between between BEGIN(_PARTIAL)_REQ and END(_PARTIAL)_REQ (AWVALID to AWREADY and WVALID to WREADY)
sc_core::sc_attribute< unsigned >	rd_addr_accept_delay {"rd_addr_accept_delay", 0}
	the latency between between BEGIN_REQ and END_REQ (ARVALID to ARREADY)
sc_core::sc_attribute< unsigned >	rd_data_beat_delay {"rd_data_beat_delay", 0}
	the latency between between END(_PARTIAL)_RESP and BEGIN(_PARTIAL)_RESP (RREADY to RVALID)
sc_core::sc_attribute< unsigned >	rd_resp_delay {"rd_resp_delay", 0}
	the latency between request and response phase. Will be overwritten by the return of the callback function (if registered)
sc_core::sc_attribute< unsigned >	wr_resp_delay {"wr_resp_delay", 0}
	the latency between request and response phase. Will be overwritten by the return of the callback function (if registered)

Protected Member Functions
	ahb_target_b (const sc_core::sc_module_name &nm, sc_core::sc_port_b< tlm::tlm_bw_transport_if< tlm::tlm_base_protocol_types >> &port, size_t transfer_width)
	ahb_target_b (ahb_target_b const &)=delete
	ahb_target_b (ahb_target_b &&)=delete
ahb_target_b &	operator= (ahb_target_b const &)=delete
ahb_target_b &	operator= (ahb_target_b &&)=delete
void	send_resp_thread ()
void	end_of_elaboration () override

Protected Attributes
sc_core::sc_port_b< tlm::tlm_bw_transport_if< tlm::tlm_base_protocol_types > > &	socket_bw
sc_core::sc_semaphore	sn_sem {1}
sc_core::sc_mutex	wr
sc_core::sc_mutex	rd
sc_core::sc_mutex	sn
bool	fast_resp {false}
bool	fast_req {false}
std::function< unsigned(payload_type &trans)>	operation_cb
scc::ordered_semaphore	rd_resp {1}
scc::ordered_semaphore	wr_resp {1}
sc_core::sc_clock *	clk_if {nullptr}

Detailed Description

the target protocol engine base class

Definition at line 37 of file ahb_target.h.

Constructor & Destructor Documentation

ahb_target_b()

ahb::pe::ahb_target_b::ahb_target_b ( const sc_core::sc_module_name &  nm, sc_core::sc_port_b< tlm::tlm_bw_transport_if< tlm::tlm_base_protocol_types >> &  port, size_t  transfer_width  )

explicitprotected

the constructor. Protected as it should only be called by derived classes

Parameters

nm	the module name
port
transfer_width

Member Function Documentation

operation_resp()

void ahb_target_b::operation_resp	(	payload_type &	trans,
		bool	sync = false
	)

Parameters

trans
sync

Definition at line 68 of file ahb_target.cpp.

set_operation_cb()

void ahb::pe::ahb_target_b::set_operation_cb ( std::function< unsigned(payload_type &trans)>  cb )

inline

Set the operation callback function.

This callback is invoked once a transaction arrives. This function is not allowed to block and returns the latency of the operation i.e. the duration until the reponse phase starts

Todo:

refine API

Parameters

cb	the callback function

Definition at line 86 of file ahb_target.h.

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The documentation for this class was generated from the following files:

• /home/eyck/git/SystemC-Components/src/bus_interfaces/ahb/pe/ahb_target.h
• /home/eyck/git/SystemC-Components/src/bus_interfaces/ahb/pe/ahb_target.cpp