79 lines
2.5 KiB
C++
79 lines
2.5 KiB
C++
/*
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DingusPPC - The Experimental PowerPC Macintosh emulator
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Copyright (C) 2018-21 divingkatae and maximum
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(theweirdo) spatium
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(Contact divingkatae#1017 or powermax#2286 on Discord for more info)
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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/** @file MESH (Macintosh Enhanced SCSI Hardware) controller emulation. */
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#include <devices/common/scsi/mesh.h>
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#include <devices/deviceregistry.h>
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#include <cinttypes>
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#include <loguru.hpp>
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using namespace MeshScsi;
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uint8_t MESHController::read(uint8_t reg_offset)
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{
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switch(reg_offset) {
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case MeshReg::BusStatus0:
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LOG_F(9, "MESH: read from BusStatus0 register");
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return 0;
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case MeshReg::MeshID:
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LOG_F(INFO, "MESH: read from MeshID register");
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return this->chip_id; // tell them who we are
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default:
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LOG_F(WARNING, "MESH: read from unimplemented register at offset %d", reg_offset);
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}
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return 0;
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}
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void MESHController::write(uint8_t reg_offset, uint8_t value)
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{
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switch(reg_offset) {
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case MeshReg::Sequence:
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LOG_F(INFO, "MESH: write 0x%02X to Sequence register", value);
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break;
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case MeshReg::BusStatus1:
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LOG_F(INFO, "MESH: write 0x%02X to BusStatus1 register", value);
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break;
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case MeshReg::IntMask:
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LOG_F(INFO, "MESH: write 0x%02X to IntMask register", value);
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break;
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case MeshReg::Interrupt:
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LOG_F(INFO, "MESH: write 0x%02X to Interrupt register", value);
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break;
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case MeshReg::SourceID:
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LOG_F(INFO, "MESH: write 0x%02X to SourceID register", value);
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break;
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case MeshReg::SyncParms:
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LOG_F(INFO, "MESH: write 0x%02X to SyncParms register", value);
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break;
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default:
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LOG_F(WARNING, "MESH: write to unimplemented register at offset %d", reg_offset);
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}
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}
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static const DeviceDescription Mesh_Descriptor = {
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MESHController::create, {}, {}
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};
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REGISTER_DEVICE(Mesh, Mesh_Descriptor);
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