package axi_pkg;

  typedef enum logic [1:0] {
    AXI_BURST_FIXED = 2'b00,
    AXI_BURST_INCR  = 2'b01,
    AXI_BURST_WRAP  = 2'b10
  } axi_burst_t;

  typedef enum logic [1:0] {
    AXI_RESP_OKAY   = 2'b00,
    AXI_RESP_EXOKAY = 2'b01,
    AXI_RESP_SLVERR = 2'b10,
    AXI_RESP_DECERR = 2'b11
  } axi_resp_t;

  function automatic logic [2:0] axi_size_from_bytes(input int unsigned nbytes);
    case (nbytes)
      1   : return 3'd0;
      2   : return 3'd1;
      4   : return 3'd2;
      8   : return 3'd3;
      16  : return 3'd4;
      32  : return 3'd5;
      64  : return 3'd6;
      128 : return 3'd7;
      default: return 3'd0;
    endcase
  endfunction

endpackage : axi_pkg

`define AXI4_TYPEDEF_ALL(__name, __addr_t, __data_t, __strb_t, __id_t, __user_t) \
  typedef struct packed { \
    __id_t                id; \
    __addr_t              addr; \
    logic [7:0]           len; \
    logic [2:0]           size; \
    axi_pkg::axi_burst_t  burst; \
    logic                 lock; \
    logic [3:0]           cache; \
    logic [2:0]           prot; \
    logic [3:0]           qos; \
    logic [3:0]           region; \
    __user_t              user; \
    logic                 valid; \
  } __name``_aw_chan_t; \
  typedef struct packed { \
    __data_t              data; \
    __strb_t              strb; \
    logic                 last; \
    __user_t              user; \
    logic                 valid; \
  } __name``_w_chan_t; \
  typedef struct packed { \
    __id_t                id; \
    axi_pkg::axi_resp_t   resp; \
    __user_t              user; \
    logic                 valid; \
  } __name``_b_chan_t; \
  typedef struct packed { \
    __id_t                id; \
    __addr_t              addr; \
    logic [7:0]           len; \
    logic [2:0]           size; \
    axi_pkg::axi_burst_t  burst; \
    logic                 lock; \
    logic [3:0]           cache; \
    logic [2:0]           prot; \
    logic [3:0]           qos; \
    logic [3:0]           region; \
    __user_t              user; \
    logic                 valid; \
  } __name``_ar_chan_t; \
  typedef struct packed { \
    __id_t                id; \
    __data_t              data; \
    axi_pkg::axi_resp_t   resp; \
    logic                 last; \
    __user_t              user; \
    logic                 valid; \
  } __name``_r_chan_t; \
  typedef struct packed { \
    __name``_aw_chan_t aw; \
    __name``_w_chan_t  w; \
    logic              b_ready; \
    __name``_ar_chan_t ar; \
    logic              r_ready; \
  } __name``_req_t; \
  typedef struct packed { \
    logic              aw_ready; \
    logic              w_ready; \
    __name``_b_chan_t  b; \
    logic              ar_ready; \
    __name``_r_chan_t  r; \
  } __name``_resp_t;

`define AXI4L_TYPEDEF_ALL(__name, __addr_t, __data_t, __strb_t, __user_t) \
  typedef struct packed { \
    __addr_t              addr; \
    logic [2:0]           prot; \
    __user_t              user; \
    logic                 valid; \
  } __name``_aw_chan_t; \
  typedef struct packed { \
    __data_t              data; \
    __strb_t              strb; \
    __user_t              user; \
    logic                 valid; \
  } __name``_w_chan_t; \
  typedef struct packed { \
    axi_pkg::axi_resp_t   resp; \
    __user_t              user; \
    logic                 valid; \
  } __name``_b_chan_t; \
  typedef struct packed { \
    __addr_t              addr; \
    logic [2:0]           prot; \
    __user_t              user; \
    logic                 valid; \
  } __name``_ar_chan_t; \
  typedef struct packed { \
    __data_t              data; \
    axi_pkg::axi_resp_t   resp; \
    __user_t              user; \
    logic                 valid; \
  } __name``_r_chan_t; \
  typedef struct packed { \
    __name``_aw_chan_t aw; \
    __name``_w_chan_t  w; \
    logic              b_ready; \
    __name``_ar_chan_t ar; \
    logic              r_ready; \
  } __name``_req_t; \
  typedef struct packed { \
    logic              aw_ready; \
    logic              w_ready; \
    __name``_b_chan_t  b; \
    logic              ar_ready; \
    __name``_r_chan_t  r; \
  } __name``_resp_t;