dingusppc/devices/common/ata/idechannel.h

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/*
DingusPPC - The Experimental PowerPC Macintosh emulator
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Copyright (C) 2018-23 divingkatae and maximum
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(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/>.
*/
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/** @file IDE Channel (aka IDE port) definitions. */
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#ifndef IDE_CHANNEL_H
#define IDE_CHANNEL_H
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#include <devices/common/ata/atadefs.h>
#include <devices/common/hwcomponent.h>
#include <devices/common/hwinterrupt.h>
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#include <cinttypes>
#include <memory>
#include <string>
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class IdeChannel : public HWComponent
{
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public:
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IdeChannel(const std::string name);
~IdeChannel() = default;
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static std::unique_ptr<HWComponent> create_first() {
return std::unique_ptr<IdeChannel>(new IdeChannel("IDE0"));
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}
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static std::unique_ptr<HWComponent> create_second() {
return std::unique_ptr<IdeChannel>(new IdeChannel("IDE1"));
}
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int device_postinit() override;
void register_device(int id, AtaInterface* dev_obj);
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uint32_t read(const uint8_t reg_addr, const int size);
void write(const uint8_t reg_addr, const uint32_t val, const int size);
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void assert_pdiag() {
this->devices[0]->pdiag_callback();
};
bool is_device1_present() {
return this->devices[1]->get_device_id() != ata_interface::DEVICE_ID_INVALID;
}
void report_intrq(uint8_t intrq_state) {
this->int_ctrl->ack_int(this->irq_id, intrq_state);
}
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private:
int cur_dev = 0;
uint32_t ch_config = 0; // timing configuration for this channel
AtaInterface* devices[2];
// interrupt related stuff
InterruptCtrl* int_ctrl = nullptr;
uint32_t irq_id = 0;
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std::unique_ptr<AtaInterface> device_stub;
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};
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#endif // IDE_CHANNEL_H