package dma_axil_reg_map_pkg;

    localparam int unsigned DMA_AXIL_REG_MAP_N_REGS = 6;

    localparam int unsigned DMA_WRITE_DESC_CONTROL_REG = 0;
    localparam int unsigned DMA_WRITE_DESC_ADDR_REG    = 1;
    localparam int unsigned DMA_WRITE_DESC_LEN_REG     = 2;
    localparam int unsigned DMA_READ_DESC_CONTROL_REG  = 3;
    localparam int unsigned DMA_READ_DESC_ADDR_REG     = 4;
    localparam int unsigned DMA_READ_DESC_LEN_REG      = 5;

    localparam logic [2:0] REG_BIT_RSVD = 3'd0;
    localparam logic [2:0] REG_BIT_RO   = 3'd1;
    localparam logic [2:0] REG_BIT_RW   = 3'd2;
    localparam logic [2:0] REG_BIT_W1S  = 3'd3;

    typedef logic [DMA_AXIL_REG_MAP_N_REGS-1:0][31:0][2:0] reg_mode_map_t;

    function automatic reg_mode_map_t make_dma_reg_mode();
        reg_mode_map_t mode;

        mode = '0;

        // По умолчанию всё reserved
        for (int reg_idx = 0; reg_idx < DMA_AXIL_REG_MAP_N_REGS; reg_idx++) begin
            for (int bit_idx = 0; bit_idx < 32; bit_idx++) begin
                mode[reg_idx][bit_idx] = REG_BIT_RSVD;
            end
        end

        // WRITE CONTROL
        mode[DMA_WRITE_DESC_CONTROL_REG][0] = REG_BIT_RO;
        mode[DMA_WRITE_DESC_CONTROL_REG][1] = REG_BIT_W1S;

        // WRITE ADDR
        for (int bit_idx = 0; bit_idx < 32; bit_idx++) begin
            mode[DMA_WRITE_DESC_ADDR_REG][bit_idx] = REG_BIT_RW;
        end

        // WRITE LEN
        for (int bit_idx = 0; bit_idx < 32; bit_idx++) begin
            mode[DMA_WRITE_DESC_LEN_REG][bit_idx] = REG_BIT_RW;
        end

        // READ CONTROL
        mode[DMA_READ_DESC_CONTROL_REG][0] = REG_BIT_RO;
        mode[DMA_READ_DESC_CONTROL_REG][1] = REG_BIT_W1S;

        // READ ADDR
        for (int bit_idx = 0; bit_idx < 32; bit_idx++) begin
            mode[DMA_READ_DESC_ADDR_REG][bit_idx] = REG_BIT_RW;
        end

        // READ LEN
        for (int bit_idx = 0; bit_idx < 32; bit_idx++) begin
            mode[DMA_READ_DESC_LEN_REG][bit_idx] = REG_BIT_RW;
        end

        return mode;
    endfunction

    localparam reg_mode_map_t DMA_AXIL_REG_MAP_REG_MODE = make_dma_reg_mode();

endpackage