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switch.cpp
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//Necessary Imports
#include "switch.h"
//constants
#define DEST_WIDTH (INCLUDE_DEST+DEST_IN_DATA)
#define KEEP_WIDTH DATA_WIDTH/8
//Verify the parameter inputs (Error checking)
//If any of the #error are reachable then the inputs are incorrect
#if DEST_IN_DATA != 0 and INCLUDE_DEST!=0
#error "Can not parse two conflicting dests"
#endif
#if DATA_WIDTH < 0
#error "Data width must be positive"
#endif
#ifdef NUMBER_OF_OUT_PORTS
#if NUMBER_OF_OUT_PORTS < 1
#error "Number of out ports must be a positive non zero value"
#endif
#endif
#if NUMBER_OF_IN_PORTS < 1
#error "Number of in ports must be a positive non zero value"
#endif
#if KEEP_WIDTH*8!=DATA_WIDTH
#error "data not a multiple of 8"
#endif
#if NUMBER_OF_IN_PORTS > 16
#error "Number of In ports exceeds allowable 16 ports"
#endif
#if NUMBER_OF_OUT_PORTS > 16
#error "Number of Out ports exceeds allowable 16 ports"
#endif
struct AXIS_RAW
{
//data structure representing external interface
//widths and what is included depend on parameters
#if DATA_WIDTH != 0
ap_uint<DATA_WIDTH> data;
#if INCLUDE_STRB != 0
ap_uint<INCLUDE_STRB> strb;
#endif
#if INCLUDE_KEEP != 0
ap_uint<KEEP_WIDTH> keep;
#endif
#endif
#if INCLUDE_LAST != 0
ap_uint<1> last;
#endif
#if INCLUDE_ID != 0
ap_uint<INCLUDE_ID> id;
#endif
#if INCLUDE_DEST != 0
ap_uint<INCLUDE_DEST> dest;
#endif
#if INCLUDE_USER != 0
ap_uint<INCLUDE_USER> user;
#endif
ap_uint<1> valid;
};
const struct AXIS_RAW DUMMY =
{
//data structure representing external interface
//widths and what is included depend on parameters
#if DATA_WIDTH != 0
0,//data
#if INCLUDE_STRB != 0
0,//strb
#endif
#if INCLUDE_KEEP != 0
0,//keep
#endif
#endif
#if INCLUDE_LAST != 0
0,//last
#endif
#if INCLUDE_ID != 0
0,//ID
#endif
#if INCLUDE_DEST != 0
0,//DEST
#endif
#if INCLUDE_USER != 0
0,//USER
#endif
0//valid
};
void arbitration_function(
#ifdef ROUNDROBIN_ARBITRATION
ap_uint<4> &roundrobin_stage,
#endif
ap_uint<1> &arbiter,
ap_uint<5> &output_sw_reg,
AXIS_RAW in_port_0,
#if NUMBER_OF_IN_PORTS > 1
AXIS_RAW in_port_1,
#if NUMBER_OF_IN_PORTS > 2
AXIS_RAW in_port_2,
#if NUMBER_OF_IN_PORTS > 3
AXIS_RAW in_port_3,
#if NUMBER_OF_IN_PORTS > 4
AXIS_RAW in_port_4,
#if NUMBER_OF_IN_PORTS > 5
AXIS_RAW in_port_5,
#if NUMBER_OF_IN_PORTS > 6
AXIS_RAW in_port_6,
#if NUMBER_OF_IN_PORTS > 7
AXIS_RAW in_port_7,
#if NUMBER_OF_IN_PORTS > 8
AXIS_RAW in_port_8,
#if NUMBER_OF_IN_PORTS > 9
AXIS_RAW in_port_9,
#if NUMBER_OF_IN_PORTS > 10
AXIS_RAW in_port_10,
#if NUMBER_OF_IN_PORTS > 11
AXIS_RAW in_port_11,
#if NUMBER_OF_IN_PORTS > 12
AXIS_RAW in_port_12,
#if NUMBER_OF_IN_PORTS > 13
AXIS_RAW in_port_13,
#if NUMBER_OF_IN_PORTS > 14
AXIS_RAW in_port_14,
#if NUMBER_OF_IN_PORTS > 15
AXIS_RAW in_port_15,
#endif
#endif
#endif
#endif
#endif
#endif
#endif
#endif
#endif
#endif
#endif
#endif
#endif
#endif
#endif
#if OUTPUT_PARSING_ENABLE==1
ap_uint<DEST_WIDTH> &dest_needed,
ap_uint<DEST_WIDTH> &dest_needed_reg,
#endif
ap_uint<5> &output_sw,
AXIS_RAW output_reg_last_valid,
ap_uint<4> offset
)
{
#pragma HLS inline
#if INCLUDE_LAST !=0
//if there is no last, then arbitration is done every cycle so there is no if statement
//use previous input value to determine if we should switch the source
if ((output_reg_last_valid.last & output_reg_last_valid.valid)| arbiter)
{
#endif
#ifdef ROUNDROBIN_ARBITRATION
roundrobin_stage=(roundrobin_stage+1)%NUMBER_OF_IN_PORTS;
#endif
//Find the highest priority port with a valid stage
if (in_port_0.valid)
{
#if OUTPUT_PARSING_ENABLE == 1
#if dest_mask == 0
#if DEST_IN_DATA==0
dest_needed=in_port_0.dest;
dest_needed_reg = in_port_0.dest;
#else
dest_needed=in_port_0.data.range(511,496);
dest_needed_reg=in_port_0.data.range(511,496);
#endif
#else
#if DEST_IN_DATA==0
dest_needed=in_port_0.dest& dest_mask;
dest_needed_reg = in_port_0.dest& dest_mask;
#else
dest_needed=in_port_0.data.range(511,496)& dest_mask;
dest_needed_reg=in_port_0.data.range(511,496)& dest_mask;
#endif
#endif
#endif
output_sw = (offset)%NUMBER_OF_IN_PORTS;
arbiter = 0;
output_sw_reg = (offset)%NUMBER_OF_IN_PORTS;
}
#if NUMBER_OF_IN_PORTS > 1
else if (in_port_1.valid)
{
#if OUTPUT_PARSING_ENABLE == 1
#if dest_mask == 0
#if DEST_IN_DATA==0
dest_needed=in_port_1.dest;
dest_needed_reg = in_port_1.dest;
#else
dest_needed=in_port_1.data.range(511,496);
dest_needed_reg=in_port_1.data.range(511,496);
#endif
#else
#if DEST_IN_DATA==0
dest_needed=in_port_1.dest& dest_mask;
dest_needed_reg = in_port_1.dest& dest_mask;
#else
dest_needed=in_port_1.data.range(511,496)& dest_mask;
dest_needed_reg=in_port_1.data.range(511,496)& dest_mask;
#endif
#endif
#endif
output_sw = (1+offset)%NUMBER_OF_IN_PORTS;
arbiter = 0;
output_sw_reg = (1+offset)%NUMBER_OF_IN_PORTS;
}
#endif
#if NUMBER_OF_IN_PORTS > 2
else if (in_port_2.valid)
{
#if OUTPUT_PARSING_ENABLE == 1
#if dest_mask == 0
#if DEST_IN_DATA==0
dest_needed=in_port_2.dest;
dest_needed_reg = in_port_2.dest;
#else
dest_needed=in_port_2.data.range(511,496);
dest_needed_reg=in_port_2.data.range(511,496);
#endif
#else
#if DEST_IN_DATA==0
dest_needed=in_port_2.dest& dest_mask;
dest_needed_reg = in_port_2.dest& dest_mask;
#else
dest_needed=in_port_2.data.range(511,496)& dest_mask;
dest_needed_reg=in_port_2.data.range(511,496)& dest_mask;
#endif
#endif
#endif
output_sw = (2+offset)%NUMBER_OF_IN_PORTS;
arbiter = 0;
output_sw_reg = (2+offset)%NUMBER_OF_IN_PORTS;;
}
#endif
#if NUMBER_OF_IN_PORTS > 3
else if (in_port_3.valid)
{
#if OUTPUT_PARSING_ENABLE == 1
#if dest_mask == 0
#if DEST_IN_DATA==0
dest_needed=in_port_3.dest;
dest_needed_reg = in_port_3.dest;
#else
dest_needed=in_port_3.data.range(511,496);
dest_needed_reg=in_port_3.data.range(511,496);
#endif
#else
#if DEST_IN_DATA==0
dest_needed=in_port_3.dest& dest_mask;
dest_needed_reg = in_port_3.dest& dest_mask;
#else
dest_needed=in_port_3.data.range(511,496)& dest_mask;
dest_needed_reg=in_port_3.data.range(511,496)& dest_mask;
#endif
#endif
#endif
output_sw = (3+offset)%NUMBER_OF_IN_PORTS;
arbiter = 0;
output_sw_reg = (3+offset)%NUMBER_OF_IN_PORTS;
}
#endif
#if NUMBER_OF_IN_PORTS > 4
else if (in_port_4.valid)
{
#if OUTPUT_PARSING_ENABLE == 1
#if dest_mask == 0
#if DEST_IN_DATA==0
dest_needed=in_port_4.dest;
dest_needed_reg = in_port_4.dest;
#else
dest_needed=in_port_4.data.range(511,496);
dest_needed_reg=in_port_4.data.range(511,496);
#endif
#else
#if DEST_IN_DATA==0
dest_needed=in_port_4.dest& dest_mask;
dest_needed_reg = in_port_4.dest& dest_mask;
#else
dest_needed=in_port_4.data.range(511,496)& dest_mask;
dest_needed_reg=in_port_4.data.range(511,496)& dest_mask;
#endif
#endif
#endif
output_sw = (4+offset)%NUMBER_OF_IN_PORTS;
arbiter = 0;
output_sw_reg = (4+offset)%NUMBER_OF_IN_PORTS;
}
#endif
#if NUMBER_OF_IN_PORTS > 5
else if (in_port_5.valid)
{
#if OUTPUT_PARSING_ENABLE == 1
#if dest_mask == 0
#if DEST_IN_DATA==0
dest_needed=in_port_5.dest;
dest_needed_reg = in_port_5.dest;
#else
dest_needed=in_port_5.data.range(511,496);
dest_needed_reg=in_port_5.data.range(511,496);
#endif
#else
#if DEST_IN_DATA==0
dest_needed=in_port_5.dest& dest_mask;
dest_needed_reg = in_port_5.dest& dest_mask;
#else
dest_needed=in_port_5.data.range(511,496)& dest_mask;
dest_needed_reg=in_port_5.data.range(511,496)& dest_mask;
#endif
#endif
#endif
output_sw = (5+offset)%NUMBER_OF_IN_PORTS;
arbiter = 0;
output_sw_reg = (5+offset)%NUMBER_OF_IN_PORTS;
}
#endif
#if NUMBER_OF_IN_PORTS > 6
else if (in_port_6.valid)
{
#if OUTPUT_PARSING_ENABLE == 1
#if dest_mask == 0
#if DEST_IN_DATA==0
dest_needed=in_port_6.dest;
dest_needed_reg = in_port_6.dest;
#else
dest_needed=in_port_6.data.range(511,496);
dest_needed_reg=in_port_6.data.range(511,496);
#endif
#else
#if DEST_IN_DATA==0
dest_needed=in_port_6.dest& dest_mask;
dest_needed_reg = in_port_6.dest& dest_mask;
#else
dest_needed=in_port_6.data.range(511,496)& dest_mask;
dest_needed_reg=in_port_6.data.range(511,496)& dest_mask;
#endif
#endif
#endif
output_sw = (6+offset)%NUMBER_OF_IN_PORTS;
arbiter = 0;
output_sw_reg = (6+offset)%NUMBER_OF_IN_PORTS;
}
#endif
#if NUMBER_OF_IN_PORTS > 7
else if (in_port_7.valid)
{
#if OUTPUT_PARSING_ENABLE == 1
#if dest_mask == 0
#if DEST_IN_DATA==0
dest_needed=in_port_7.dest;
dest_needed_reg = in_port_7.dest;
#else
dest_needed=in_port_7.data.range(511,496);
dest_needed_reg=in_port_7.data.range(511,496);
#endif
#else
#if DEST_IN_DATA==0
dest_needed=in_port_7.dest& dest_mask;
dest_needed_reg = in_port_7.dest& dest_mask;
#else
dest_needed=in_port_7.data.range(511,496)& dest_mask;
dest_needed_reg=in_port_7.data.range(511,496)& dest_mask;
#endif
#endif
#endif
output_sw = (7+offset)%NUMBER_OF_IN_PORTS;
arbiter = 0;
output_sw_reg = (7+offset)%NUMBER_OF_IN_PORTS;
}
#endif
#if NUMBER_OF_IN_PORTS > 8
else if (in_port_8.valid)
{
#if OUTPUT_PARSING_ENABLE == 1
#if dest_mask == 0
#if DEST_IN_DATA==0
dest_needed=in_port_8.dest;
dest_needed_reg = in_port_8.dest;
#else
dest_needed=in_port_8.data.range(511,496);
dest_needed_reg=in_port_8.data.range(511,496);
#endif
#else
#if DEST_IN_DATA==0
dest_needed=in_port_8.dest& dest_mask;
dest_needed_reg = in_port_8.dest& dest_mask;
#else
dest_needed=in_port_8.data.range(511,496)& dest_mask;
dest_needed_reg=in_port_8.data.range(511,496)& dest_mask;
#endif
#endif
#endif
output_sw = (8+offset)%NUMBER_OF_IN_PORTS;
arbiter = 0;
output_sw_reg = (8+offset)%NUMBER_OF_IN_PORTS;
}
#endif
#if NUMBER_OF_IN_PORTS > 9
else if (in_port_9.valid)
{
#if OUTPUT_PARSING_ENABLE == 1
#if dest_mask == 0
#if DEST_IN_DATA==0
dest_needed=in_port_9.dest;
dest_needed_reg = in_port_9.dest;
#else
dest_needed=in_port_9.data.range(511,496);
dest_needed_reg=in_port_9.data.range(511,496);
#endif
#else
#if DEST_IN_DATA==0
dest_needed=in_port_9.dest& dest_mask;
dest_needed_reg = in_port_9.dest& dest_mask;
#else
dest_needed=in_port_9.data.range(511,496)& dest_mask;
dest_needed_reg=in_port_9.data.range(511,496)& dest_mask;
#endif
#endif
#endif
output_sw = (9+offset)%NUMBER_OF_IN_PORTS;
arbiter = 0;
output_sw_reg = (9+offset)%NUMBER_OF_IN_PORTS;
}
#endif
#if NUMBER_OF_IN_PORTS > 10
else if (in_port_10.valid)
{
#if OUTPUT_PARSING_ENABLE == 1
#if dest_mask == 0
#if DEST_IN_DATA==0
dest_needed=in_port_10.dest;
dest_needed_reg = in_port_10.dest;
#else
dest_needed=in_port_10.data.range(511,496);
dest_needed_reg=in_port_10.data.range(511,496);
#endif
#else
#if DEST_IN_DATA==0
dest_needed=in_port_10.dest& dest_mask;
dest_needed_reg = in_port_10.dest& dest_mask;
#else
dest_needed=in_port_10.data.range(511,496)& dest_mask;
dest_needed_reg=in_port_10.data.range(511,496)& dest_mask;
#endif
#endif
#endif
output_sw = (10+offset)%NUMBER_OF_IN_PORTS;
arbiter = 0;
output_sw_reg = (10+offset)%NUMBER_OF_IN_PORTS;
}
#endif
#if NUMBER_OF_IN_PORTS > 11
else if (in_port_11.valid)
{
#if OUTPUT_PARSING_ENABLE == 1
#if dest_mask == 0
#if DEST_IN_DATA==0
dest_needed=in_port_11.dest;
dest_needed_reg = in_port_11.dest;
#else
dest_needed=in_port_11.data.range(511,496);
dest_needed_reg=in_port_11.data.range(511,496);
#endif
#else
#if DEST_IN_DATA==0
dest_needed=in_port_11.dest& dest_mask;
dest_needed_reg = in_port_11.dest& dest_mask;
#else
dest_needed=in_port_11.data.range(511,496)& dest_mask;
dest_needed_reg=in_port_11.data.range(511,496)& dest_mask;
#endif
#endif
#endif
output_sw = (11+offset)%NUMBER_OF_IN_PORTS;
arbiter = 0;
output_sw_reg = (11+offset)%NUMBER_OF_IN_PORTS;
}
#endif
#if NUMBER_OF_IN_PORTS > 12
else if (in_port_12.valid)
{
#if OUTPUT_PARSING_ENABLE == 1
#if dest_mask == 0
#if DEST_IN_DATA==0
dest_needed=in_port_12.dest;
dest_needed_reg = in_port_12.dest;
#else
dest_needed=in_port_12.data.range(511,496);
dest_needed_reg=in_port_12.data.range(511,496);
#endif
#else
#if DEST_IN_DATA==0
dest_needed=in_port_12.dest& dest_mask;
dest_needed_reg = in_port_12.dest& dest_mask;
#else
dest_needed=in_port_12.data.range(511,496)& dest_mask;
dest_needed_reg=in_port_12.data.range(511,496)& dest_mask;
#endif
#endif
#endif
output_sw = (12+offset)%NUMBER_OF_IN_PORTS;
arbiter = 0;
output_sw_reg = (12+offset)%NUMBER_OF_IN_PORTS;
}
#endif
#if NUMBER_OF_IN_PORTS > 13
else if (in_port_13.valid)
{
#if OUTPUT_PARSING_ENABLE == 1
#if dest_mask == 0
#if DEST_IN_DATA==0
dest_needed=in_port_13.dest;
dest_needed_reg = in_port_13.dest;
#else
dest_needed=in_port_13.data.range(511,496);
dest_needed_reg=in_port_13.data.range(511,496);
#endif
#else
#if DEST_IN_DATA==0
dest_needed=in_port_13.dest& dest_mask;
dest_needed_reg = in_port_13.dest& dest_mask;
#else
dest_needed=in_port_13.data.range(511,496)& dest_mask;
dest_needed_reg=in_port_13.data.range(511,496)& dest_mask;
#endif
#endif
#endif
output_sw = (13+offset)%NUMBER_OF_IN_PORTS;
arbiter = 0;
output_sw_reg = (13+offset)%NUMBER_OF_IN_PORTS;
}
#endif
#if NUMBER_OF_IN_PORTS > 14
else if (in_port_14.valid)
{
#if OUTPUT_PARSING_ENABLE == 1
#if dest_mask == 0
#if DEST_IN_DATA==0
dest_needed=in_port_14.dest;
dest_needed_reg = in_port_14.dest;
#else
dest_needed=in_port_14.data.range(511,496);
dest_needed_reg=in_port_14.data.range(511,496);
#endif
#else
#if DEST_IN_DATA==0
dest_needed=in_port_14.dest& dest_mask;
dest_needed_reg = in_port_14.dest& dest_mask;
#else
dest_needed=in_port_14.data.range(511,496)& dest_mask;
dest_needed_reg=in_port_14.data.range(511,496)& dest_mask;
#endif
#endif
#endif
output_sw = (14+offset)%NUMBER_OF_IN_PORTS;
arbiter = 0;
output_sw_reg = (14+offset)%NUMBER_OF_IN_PORTS;
}
#endif
#if NUMBER_OF_IN_PORTS > 15
else if (in_port_15.valid)
{
#if OUTPUT_PARSING_ENABLE == 1
#if dest_mask == 0
#if DEST_IN_DATA==0
dest_needed=in_port_15.dest;
dest_needed_reg = in_port_15.dest;
#else
dest_needed=in_port_15.data.range(511,496);
dest_needed_reg=in_port_15.data.range(511,496);
#endif
#else
#if DEST_IN_DATA==0
dest_needed=in_port_15.dest& dest_mask;
dest_needed_reg = in_port_15.dest& dest_mask;
#else
dest_needed=in_port_15.data.range(511,496)& dest_mask;
dest_needed_reg=in_port_15.data.range(511,496)& dest_mask;
#endif
#endif
#endif
output_sw = (15+offset)%NUMBER_OF_IN_PORTS;
arbiter = 0;
output_sw_reg = (15+offset)%NUMBER_OF_IN_PORTS;
}
#endif
else
{
//no candidate found
//keep the switch as it is
output_sw = output_sw_reg;
//indicate we should re-check next stage
arbiter = 1;
#if OUTPUT_PARSING_ENABLE == 1
dest_needed = dest_needed_reg;
#endif
}
#if INCLUDE_LAST !=0
}
else
{
//Indicates there is a last and it was not 1. We are in the middle of a packet
//keep the switch as it is
output_sw = output_sw_reg;
#if OUTPUT_PARSING_ENABLE == 1
dest_needed = dest_needed_reg;
#endif
}
#endif
}
void AXIS_switch
(
//Include the input ports
ap_uint<1> &in_port_0_ready,
#if NUMBER_OF_IN_PORTS > 1
AXIS_RAW in_port_1,
ap_uint<1> &in_port_1_ready,
#if NUMBER_OF_IN_PORTS > 2
AXIS_RAW in_port_2,
ap_uint<1> &in_port_2_ready,
#if NUMBER_OF_IN_PORTS > 3
AXIS_RAW in_port_3,
ap_uint<1> &in_port_3_ready,
#if NUMBER_OF_IN_PORTS > 4
AXIS_RAW in_port_4,
ap_uint<1> &in_port_4_ready,
#if NUMBER_OF_IN_PORTS > 5
AXIS_RAW in_port_5,
ap_uint<1> &in_port_5_ready,
#if NUMBER_OF_IN_PORTS > 6
AXIS_RAW in_port_6,
ap_uint<1> &in_port_6_ready,
#if NUMBER_OF_IN_PORTS > 7
AXIS_RAW in_port_7,
ap_uint<1> &in_port_7_ready,
#if NUMBER_OF_IN_PORTS > 8
AXIS_RAW in_port_8,
ap_uint<1> &in_port_8_ready,
#if NUMBER_OF_IN_PORTS > 9
AXIS_RAW in_port_9,
ap_uint<1> &in_port_9_ready,
#if NUMBER_OF_IN_PORTS > 10
AXIS_RAW in_port_10,
ap_uint<1> &in_port_10_ready,
#if NUMBER_OF_IN_PORTS > 11
AXIS_RAW in_port_11,
ap_uint<1> &in_port_11_ready,
#if NUMBER_OF_IN_PORTS > 12
AXIS_RAW in_port_12,
ap_uint<1> &in_port_12_ready,
#if NUMBER_OF_IN_PORTS > 13
AXIS_RAW in_port_13,
ap_uint<1> &in_port_13_ready,
#if NUMBER_OF_IN_PORTS > 14
AXIS_RAW in_port_14,
ap_uint<1> &in_port_14_ready,
#if NUMBER_OF_IN_PORTS > 15
AXIS_RAW in_port_15,
ap_uint<1> &in_port_15_ready,
#endif
#endif
#endif
#endif
#endif
#endif
#endif
#endif
#endif
#endif
#endif
#endif
#endif
#endif
#endif
//include the output ports
#if OUTPUT_PARSING_ENABLE == 1
AXIS_RAW &out_port_0,
ap_uint<1> out_port_0_ready,
#if NUMBER_OF_OUT_PORTS > 1
AXIS_RAW &out_port_1,
ap_uint<1> out_port_1_ready,
#endif
#if NUMBER_OF_OUT_PORTS > 2
AXIS_RAW &out_port_2,
ap_uint<1> out_port_2_ready,
#endif
#if NUMBER_OF_OUT_PORTS > 3
AXIS_RAW &out_port_3,
ap_uint<1> out_port_3_ready,
#endif
#if NUMBER_OF_OUT_PORTS > 4
AXIS_RAW &out_port_4,
ap_uint<1> out_port_4_ready,
#endif
#if NUMBER_OF_OUT_PORTS > 5
AXIS_RAW &out_port_5,
ap_uint<1> out_port_5_ready,
#endif
#if NUMBER_OF_OUT_PORTS > 6
AXIS_RAW &out_port_6,
ap_uint<1> out_port_6_ready,
#endif
#if NUMBER_OF_OUT_PORTS > 7
AXIS_RAW &out_port_7,
ap_uint<1> out_port_7_ready,
#endif
#if NUMBER_OF_OUT_PORTS > 8
AXIS_RAW &out_port_8,
ap_uint<1> out_port_8_ready,
#endif
#if NUMBER_OF_OUT_PORTS > 9
AXIS_RAW &out_port_9,
ap_uint<1> out_port_9_ready,
#endif
#if NUMBER_OF_OUT_PORTS > 10
AXIS_RAW &out_port_10,
ap_uint<1> out_port_10_ready,
#endif
#if NUMBER_OF_OUT_PORTS > 11
AXIS_RAW &out_port_11,
ap_uint<1> out_port_11_ready,
#endif
#if NUMBER_OF_OUT_PORTS > 12
AXIS_RAW &out_port_12,
ap_uint<1> out_port_12_ready,
#endif
#if NUMBER_OF_OUT_PORTS > 13
AXIS_RAW &out_port_13,
ap_uint<1> out_port_13_ready,
#endif
#if NUMBER_OF_OUT_PORTS > 14
AXIS_RAW &out_port_14,
ap_uint<1> out_port_14_ready,
#endif
#if NUMBER_OF_OUT_PORTS > 15
AXIS_RAW &out_port_15,
ap_uint<1> out_port_15_ready,
#endif
//Include the default port
AXIS_RAW &out_port_default,
ap_uint<1> out_port_default_ready,
#else
AXIS_RAW &out_port,
ap_uint<1> out_port_ready,
#endif
AXIS_RAW in_port_0
)
{
//Set the function as dataflow with no start signal
#pragma HLS DATAFLOW
#pragma HLS INTERFACE ap_ctrl_none port=return
//Tell HLS to not treat any of the ports in any special way, gives us full control
#if OUTPUT_PARSING_ENABLE == 1
#pragma HLS INTERFACE ap_none port=out_port_0
#pragma HLS INTERFACE ap_none port=out_port_default
#if NUMBER_OF_OUT_PORTS > 1
#pragma HLS INTERFACE ap_none port=out_port_1
#endif
#if NUMBER_OF_OUT_PORTS > 2
#pragma HLS INTERFACE ap_none port=out_port_2
#endif
#if NUMBER_OF_OUT_PORTS > 3
#pragma HLS INTERFACE ap_none port=out_port_3
#endif
#if NUMBER_OF_OUT_PORTS > 4
#pragma HLS INTERFACE ap_none port=out_port_4
#endif
#if NUMBER_OF_OUT_PORTS > 5
#pragma HLS INTERFACE ap_none port=out_port_5
#endif
#if NUMBER_OF_OUT_PORTS > 6
#pragma HLS INTERFACE ap_none port=out_port_6
#endif
#if NUMBER_OF_OUT_PORTS > 7
#pragma HLS INTERFACE ap_none port=out_port_7
#endif
#if NUMBER_OF_OUT_PORTS > 8
#pragma HLS INTERFACE ap_none port=out_port_8
#endif
#if NUMBER_OF_OUT_PORTS > 9
#pragma HLS INTERFACE ap_none port=out_port_9
#endif
#if NUMBER_OF_OUT_PORTS > 10
#pragma HLS INTERFACE ap_none port=out_port_10
#endif
#if NUMBER_OF_OUT_PORTS > 11
#pragma HLS INTERFACE ap_none port=out_port_11
#endif
#if NUMBER_OF_OUT_PORTS > 12
#pragma HLS INTERFACE ap_none port=out_port_12
#endif
#if NUMBER_OF_OUT_PORTS > 13
#pragma HLS INTERFACE ap_none port=out_port_13
#endif
#if NUMBER_OF_OUT_PORTS > 14
#pragma HLS INTERFACE ap_none port=out_port_14
#endif
#if NUMBER_OF_OUT_PORTS > 15
#pragma HLS INTERFACE ap_none port=out_port_15
#endif
#else
#pragma HLS INTERFACE ap_none port=out_port
#endif
#pragma HLS INTERFACE ap_none port=in_port_0
#pragma HLS INTERFACE ap_none port=in_port_0_ready
#if NUMBER_OF_IN_PORTS>1
#pragma HLS INTERFACE ap_none port=in_port_1
#pragma HLS INTERFACE ap_none port=in_port_1_ready
#if NUMBER_OF_IN_PORTS>2
#pragma HLS INTERFACE ap_none port=in_port_2
#pragma HLS INTERFACE ap_none port=in_port_2_ready
#if NUMBER_OF_IN_PORTS>3
#pragma HLS INTERFACE ap_none port=in_port_3
#pragma HLS INTERFACE ap_none port=in_port_3_ready
#if NUMBER_OF_IN_PORTS>4
#pragma HLS INTERFACE ap_none port=in_port_4
#pragma HLS INTERFACE ap_none port=in_port_4_ready
#if NUMBER_OF_IN_PORTS>5
#pragma HLS INTERFACE ap_none port=in_port_5
#pragma HLS INTERFACE ap_none port=in_port_5_ready
#if NUMBER_OF_IN_PORTS>6
#pragma HLS INTERFACE ap_none port=in_port_6
#pragma HLS INTERFACE ap_none port=in_port_6_ready
#if NUMBER_OF_IN_PORTS>7
#pragma HLS INTERFACE ap_none port=in_port_7
#pragma HLS INTERFACE ap_none port=in_port_7_ready
#if NUMBER_OF_IN_PORTS>8
#pragma HLS INTERFACE ap_none port=in_port_8
#pragma HLS INTERFACE ap_none port=in_port_8_ready
#if NUMBER_OF_IN_PORTS>9
#pragma HLS INTERFACE ap_none port=in_port_9
#pragma HLS INTERFACE ap_none port=in_port_9_ready
#if NUMBER_OF_IN_PORTS>10
#pragma HLS INTERFACE ap_none port=in_port_10
#pragma HLS INTERFACE ap_none port=in_port_10_ready
#if NUMBER_OF_IN_PORTS>11
#pragma HLS INTERFACE ap_none port=in_port_11
#pragma HLS INTERFACE ap_none port=in_port_11_ready
#if NUMBER_OF_IN_PORTS>12
#pragma HLS INTERFACE ap_none port=in_port_12
#pragma HLS INTERFACE ap_none port=in_port_12_ready
#if NUMBER_OF_IN_PORTS>13
#pragma HLS INTERFACE ap_none port=in_port_13
#pragma HLS INTERFACE ap_none port=in_port_13_ready
#if NUMBER_OF_IN_PORTS>14
#pragma HLS INTERFACE ap_none port=in_port_14
#pragma HLS INTERFACE ap_none port=in_port_14_ready
#if NUMBER_OF_IN_PORTS>15
#pragma HLS INTERFACE ap_none port=in_port_15
#pragma HLS INTERFACE ap_none port=in_port_15_ready
#endif
#endif
#endif
#endif
#endif
#endif
#endif
#endif
#endif
#endif
#endif
#endif
#endif
#endif
#endif
//set up the variables
#ifdef ROUNDROBIN_ARBITRATION
static ap_uint<4> roundrobin_stage = 0;
#endif
ap_uint<5> output_sw;//switch value this time
static ap_uint<5> output_sw_reg = 0;//switch value last time
static AXIS_RAW output_reg = DUMMY;//register holding the previous input value
static AXIS_RAW output_reg_last_valid = DUMMY;
static ap_uint<1> arbiter = 1;//indicates we should arbitrate this cycle
//Write previous input value to the output
#if OUTPUT_PARSING_ENABLE == 1
ap_uint<1> out_port_ready;
ap_uint<DEST_WIDTH> dest_needed;
static ap_uint<DEST_WIDTH> dest_needed_reg=0;
#if dest_mask == 0
ap_uint<DEST_WIDTH> out_dest_to_use = dest_needed_reg;
#else
ap_uint<DEST_WIDTH> out_dest_to_use = dest_needed_reg & dest_mask;
#endif
//TODO: set other ports to dummy
//write output_reg to the port selected this time
//write dummy to all other ports
switch (out_dest_to_use)
{
case out_port_0_dest_address:
out_port_0=output_reg;
out_port_default=DUMMY;
#if NUMBER_OF_OUT_PORTS > 1
out_port_1=DUMMY;
#endif
#if NUMBER_OF_OUT_PORTS > 2
out_port_2=DUMMY;
#endif
#if NUMBER_OF_OUT_PORTS > 3
out_port_3=DUMMY;
#endif
#if NUMBER_OF_OUT_PORTS > 4
out_port_4=DUMMY;
#endif
#if NUMBER_OF_OUT_PORTS > 5
out_port_5=DUMMY;
#endif
#if NUMBER_OF_OUT_PORTS > 6
out_port_6=DUMMY;
#endif
#if NUMBER_OF_OUT_PORTS > 7
out_port_7=DUMMY;
#endif
#if NUMBER_OF_OUT_PORTS > 8
out_port_8=DUMMY;
#endif
#if NUMBER_OF_OUT_PORTS > 9
out_port_9=DUMMY;
#endif
#if NUMBER_OF_OUT_PORTS > 10
out_port_10=DUMMY;
#endif
#if NUMBER_OF_OUT_PORTS > 11
out_port_11=DUMMY;
#endif
#if NUMBER_OF_OUT_PORTS > 12
out_port_12=DUMMY;
#endif
#if NUMBER_OF_OUT_PORTS > 13
out_port_13=DUMMY;
#endif
#if NUMBER_OF_OUT_PORTS > 14
out_port_14=DUMMY;
#endif
#if NUMBER_OF_OUT_PORTS > 15
out_port_15=DUMMY;
#endif
break;
#if NUMBER_OF_OUT_PORTS > 1
case out_port_1_dest_address:
out_port_1=output_reg;
out_port_0=DUMMY;
out_port_default=DUMMY;
#if NUMBER_OF_OUT_PORTS > 2
out_port_2=DUMMY;
#endif
#if NUMBER_OF_OUT_PORTS > 3
out_port_3=DUMMY;
#endif
#if NUMBER_OF_OUT_PORTS > 4
out_port_4=DUMMY;
#endif
#if NUMBER_OF_OUT_PORTS > 5
out_port_5=DUMMY;
#endif
#if NUMBER_OF_OUT_PORTS > 6
out_port_6=DUMMY;
#endif
#if NUMBER_OF_OUT_PORTS > 7
out_port_7=DUMMY;
#endif
#if NUMBER_OF_OUT_PORTS > 8
out_port_8=DUMMY;
#endif
#if NUMBER_OF_OUT_PORTS > 9
out_port_9=DUMMY;
#endif
#if NUMBER_OF_OUT_PORTS > 10
out_port_10=DUMMY;
#endif
#if NUMBER_OF_OUT_PORTS > 11
out_port_11=DUMMY;
#endif
#if NUMBER_OF_OUT_PORTS > 12
out_port_12=DUMMY;
#endif
#if NUMBER_OF_OUT_PORTS > 13
out_port_13=DUMMY;
#endif
#if NUMBER_OF_OUT_PORTS > 14
out_port_14=DUMMY;
#endif
#if NUMBER_OF_OUT_PORTS > 15
out_port_15=DUMMY;
#endif
break;
#endif