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05bcd73f82
For the sake of being more intelligent as to drive clocking, hopefully. And, eventually, to support multiple drive selection.
76 lines
1.8 KiB
C++
76 lines
1.8 KiB
C++
//
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// DiskController.hpp
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// Clock Signal
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//
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// Created by Thomas Harte on 14/01/2020.
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// Copyright © 2020 Thomas Harte. All rights reserved.
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//
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#ifndef DiskController_h
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#define DiskController_h
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namespace Oric {
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class DiskController: public WD::WD1770 {
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public:
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DiskController(WD::WD1770::Personality personality, int clock_rate, Storage::Disk::Drive::ReadyType ready_type) :
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WD::WD1770(personality), clock_rate_(clock_rate), ready_type_(ready_type) {
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emplace_drives(4, clock_rate_, 300, 2, ready_type_);
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// TODO: don't assume four drives?
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}
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void set_disk(std::shared_ptr<Storage::Disk::Disk> disk, int d) {
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get_drive(size_t(d)).set_disk(disk);
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}
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enum class PagedItem {
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DiskROM,
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BASIC,
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RAM
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};
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struct Delegate: public WD1770::Delegate {
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virtual void disk_controller_did_change_paged_item(DiskController *controller) = 0;
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};
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inline void set_delegate(Delegate *delegate) {
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delegate_ = delegate;
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WD1770::set_delegate(delegate);
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if(delegate) delegate->disk_controller_did_change_paged_item(this);
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}
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inline PagedItem get_paged_item() {
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return paged_item_;
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}
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protected:
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Delegate *delegate_ = nullptr;
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bool enable_overlay_ram_ = false;
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bool disable_basic_rom_ = false;
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void select_paged_item() {
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PagedItem item = PagedItem::RAM;
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if(!enable_overlay_ram_) {
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item = disable_basic_rom_ ? PagedItem::DiskROM : PagedItem::BASIC;
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}
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set_paged_item(item);
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}
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private:
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PagedItem paged_item_ = PagedItem::DiskROM;
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int clock_rate_;
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Storage::Disk::Drive::ReadyType ready_type_;
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inline void set_paged_item(PagedItem item) {
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if(paged_item_ == item) return;
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paged_item_ = item;
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if(delegate_) {
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delegate_->disk_controller_did_change_paged_item(this);
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}
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}
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};
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};
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#endif /* DiskController_h */
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