mirror of
https://github.com/dingusdev/dingusppc.git
synced 2024-08-31 10:29:40 +00:00
90 lines
2.5 KiB
C++
90 lines
2.5 KiB
C++
/*
|
|
DingusPPC - The Experimental PowerPC Macintosh emulator
|
|
Copyright (C) 2018-22 divingkatae and maximum
|
|
(theweirdo) spatium
|
|
|
|
(Contact divingkatae#1017 or powermax#2286 on Discord for more info)
|
|
|
|
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 3 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.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program. If not, see <https://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
/** @file Media Access Controller for Ethernet (MACE) definitions. */
|
|
|
|
#ifndef MACE_H
|
|
#define MACE_H
|
|
|
|
#include <devices/common/hwcomponent.h>
|
|
|
|
#include <cinttypes>
|
|
#include <memory>
|
|
|
|
// MACE Chip ID from AMD datasheet
|
|
// TODO: compare with real HW
|
|
#define MACE_ID 0x3940
|
|
|
|
// MACE registers offsets
|
|
// Refer to the Am79C940 datasheet for details
|
|
namespace MaceEnet {
|
|
|
|
enum MaceReg : uint8_t {
|
|
Rcv_FIFO = 0,
|
|
Xmit_FIFO = 1,
|
|
Xmit_Frame_Ctrl = 2,
|
|
Xmit_Frame_Stat = 3,
|
|
Xmit_Retry_Cnt = 4,
|
|
Rcv_Frame_Ctrl = 5,
|
|
Rcv_Frame_Stat = 6,
|
|
FIFO_Frame_Cnt = 7,
|
|
Interrupt = 8,
|
|
Interrupt_Mask = 9,
|
|
Poll = 0x0A,
|
|
BIU_Config_Ctrl = 0x0B,
|
|
FIFO_Config = 0x0C,
|
|
MAC_Config_Ctrl = 0x0D,
|
|
PLS_Config_Ctrl = 0x0E,
|
|
PHY_Config_Ctrl = 0x0F,
|
|
Chip_ID_Lo = 0x10,
|
|
Chip_ID_Hi = 0x11,
|
|
Addr_Config = 0x12,
|
|
Log_Addr_Flt = 0x14,
|
|
Phys_Addr = 0x15,
|
|
Missed_Pkt_Cnt = 0x18,
|
|
Runt_Pkt_Cnt = 0x1A, // not used in Macintosh?
|
|
Rcv_Collis_Cnt = 0x1B, // not used in Macintosh?
|
|
User_Test = 0x1D,
|
|
Rsrvd_Test_1 = 0x1E, // not used in Macintosh?
|
|
Rsrvd_Test_2 = 0x1F, // not used in Macintosh?
|
|
};
|
|
|
|
}; // namespace MaceEnet
|
|
|
|
class MaceController : public HWComponent {
|
|
public:
|
|
MaceController(uint16_t id) { this->chip_id = id; };
|
|
~MaceController() = default;
|
|
|
|
static std::unique_ptr<HWComponent> create() {
|
|
return std::unique_ptr<MaceController>(new MaceController(MACE_ID));
|
|
}
|
|
|
|
// MACE registers access
|
|
uint8_t read(uint8_t reg_offset);
|
|
void write(uint8_t reg_offset, uint8_t value);
|
|
|
|
private:
|
|
uint16_t chip_id; // per-instance MACE Chip ID
|
|
};
|
|
|
|
#endif // MACE_H
|