| paul@0 | 1 | /* |
| paul@0 | 2 | * (c) 2014 Alexander Warg <alexander.warg@kernkonzept.com> |
| paul@0 | 3 | * |
| paul@0 | 4 | * This file is part of TUD:OS and distributed under the terms of the |
| paul@0 | 5 | * GNU General Public License 2. |
| paul@0 | 6 | * Please see the COPYING-GPL-2 file for details. |
| paul@0 | 7 | */ |
| paul@0 | 8 | #pragma once |
| paul@0 | 9 | |
| paul@0 | 10 | #include "hw_register_block.h" |
| paul@0 | 11 | |
| paul@0 | 12 | namespace Hw { |
| paul@0 | 13 | |
| paul@0 | 14 | class Mmio_register_block_base |
| paul@0 | 15 | { |
| paul@0 | 16 | private: |
| paul@0 | 17 | l4_addr_t _base; |
| paul@0 | 18 | l4_addr_t _shift; |
| paul@0 | 19 | |
| paul@0 | 20 | public: |
| paul@0 | 21 | explicit Mmio_register_block_base(l4_addr_t base = 0, l4_addr_t shift = 0) |
| paul@0 | 22 | : _base(base), _shift(shift) {} |
| paul@0 | 23 | |
| paul@0 | 24 | template< typename T > |
| paul@0 | 25 | T read(l4_addr_t reg) const |
| paul@0 | 26 | { return *reinterpret_cast<volatile const T *>(_base + (reg << _shift)); } |
| paul@0 | 27 | |
| paul@0 | 28 | template< typename T > |
| paul@0 | 29 | void write(T value, l4_addr_t reg) const |
| paul@0 | 30 | { *reinterpret_cast<volatile T *>(_base + (reg << _shift)) = value; } |
| paul@0 | 31 | |
| paul@0 | 32 | void set_base(l4_addr_t base) { _base = base; } |
| paul@0 | 33 | void set_shift(l4_addr_t shift) { _shift = shift; } |
| paul@0 | 34 | }; |
| paul@0 | 35 | |
| paul@0 | 36 | template< unsigned MAX_BITS = 32 > |
| paul@0 | 37 | struct Mmio_register_block : |
| paul@0 | 38 | Register_block_impl<Mmio_register_block<MAX_BITS>, MAX_BITS>, |
| paul@0 | 39 | Mmio_register_block_base |
| paul@0 | 40 | { |
| paul@0 | 41 | explicit Mmio_register_block(l4_addr_t base = 0, l4_addr_t shift = 0) |
| paul@0 | 42 | : Mmio_register_block_base(base, shift) {} |
| paul@0 | 43 | }; |
| paul@0 | 44 | |
| paul@0 | 45 | } |
| paul@0 | 46 | |
| paul@0 | 47 | |
