| -- |
| -- Copyright (C) 2017 Nico Huber <nico.h@gmx.de> |
| -- |
| -- This program is free software; you can redistribute it and/or modify |
| -- it under the terms of the GNU General Public License as published by |
| -- the Free Software Foundation; either version 2 of the License, or |
| -- (at your option) any later version. |
| -- |
| -- This program is distributed in the hope that it will be useful, |
| -- but WITHOUT ANY WARRANTY; without even the implied warranty of |
| -- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| -- GNU General Public License for more details. |
| -- |
| |
| package HW.PCI |
| is |
| |
| type Bus is range 0 .. 255; |
| type Slot is range 0 .. 31; |
| type Func is range 0 .. 7; |
| |
| type Address is record |
| Bus : PCI.Bus; |
| Slot : PCI.Slot; |
| Func : PCI.Func; |
| end record; |
| |
| type Index is range 0 .. 4095; |
| |
| Vendor_Id : constant Index := 16#00#; |
| Device_Id : constant Index := 16#02#; |
| Command : constant Index := 16#04#; |
| Command_Memory : constant := 16#02#; |
| Header_Type : constant Index := 16#0e#; |
| Header_Type_Mask : constant := 16#7f#; |
| Header_Type_Normal : constant := 16#00#; |
| |
| type Resource is (Res0, Res1, Res2, Res3, Res4, Res5); |
| Base_Address : constant array (Resource) of Index := |
| (16#10#, 16#14#, 16#18#, 16#1c#, 16#20#, 16#24#); |
| Base_Address_Space_Mask : constant := 1 * 2 ** 0; |
| Base_Address_Space_IO : constant := 1 * 2 ** 0; |
| Base_Address_Space_Mem : constant := 0 * 2 ** 0; |
| Base_Address_Mem_Type_Mask : constant := 3 * 2 ** 1; |
| Base_Address_Mem_Type_32 : constant := 0 * 2 ** 1; |
| Base_Address_Mem_Type_1M : constant := 1 * 2 ** 1; |
| Base_Address_Mem_Type_64 : constant := 2 * 2 ** 1; |
| Base_Address_Mem_Prefetch : constant := 1 * 2 ** 3; |
| Base_Address_IO_Mask : constant := 16#ffff_fffc#; |
| Base_Address_Mem_Mask : constant := 16#ffff_fff0#; |
| |
| private |
| use type HW.Word64; |
| function Calc_Base_Address (Base_Addr : Word64; Dev : Address) return Word64 |
| is |
| (Base_Addr + |
| Word64 (Dev.Bus) * 32 * 8 * 4096 + |
| Word64 (Dev.Slot) * 8 * 4096 + |
| Word64 (Dev.Func) * 4096); |
| |
| end HW.PCI; |