mirror of
https://github.com/livingcomputermuseum/UniBone.git
synced 2026-04-25 19:51:51 +00:00
a72a845623
to read the label block, though it looks like the proper transfers take place. Minor code cleanup.
96 lines
2.8 KiB
C++
96 lines
2.8 KiB
C++
/*
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rp_drive.hpp: Implementation of RP0X drives, used with RH11 controller.
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Copyright Vulcan Inc. 2020 via Living Computers: Museum + Labs, Seattle, WA.
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Contributed under the BSD 2-clause license.
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*/
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#pragma once
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#include <stdint.h>
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#include <string.h>
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#include <memory> // unique_ptr
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#include "parameter.hpp"
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#include "storagedrive.hpp"
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//
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// Implements the backing store for RP0X disk images
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//
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class rp_drive_c: public storagedrive_c
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{
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public:
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rp_drive_c(storagecontroller_c *controller, uint32_t driveNumber);
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~rp_drive_c(void);
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bool on_param_changed(parameter_c *param) override;
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uint32_t GetSectorSize(void);
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uint32_t GetType(void);
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bool IsAvailable(void);
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bool IsDriveReady(void) { return _ready; }
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bool IsWriteLocked(void) { return false; /* for now */ }
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bool IsPositioningInProgress(void) { return _pip; }
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void SetPositioningInProgress(void) { _pip = true; } // TODO: THIS IS A HACK
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bool GetReadLastSector(void) { return _lst; }
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bool GetAddressOverflow(void) { return _aoe; }
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bool GetInvalidAddress(void) { return _iae; }
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bool GetWriteLockError(void) { return _wle; }
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void SetDriveReady(void) { _ready = true; }
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void ClearDriveReady(void) { _ready = false; }
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void SetVolumeValid(void) { _vv = true; }
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void ClearVolumeValid(void) { _vv = false; }
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bool GetVolumeValid(void) { return _vv; }
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bool SeekTo(uint32_t cylinder);
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uint32_t GetCurrentCylinder();
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bool Write(uint32_t cylinder, uint32_t track, uint32_t sector, uint32_t countInWords, uint16_t* buffer);
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bool Read(uint32_t cylinder, uint32_t track, uint32_t sector, uint32_t countInWords, uint16_t** outBuffer);
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bool Search(uint32_t cylinder, uint32_t track, uint32_t sector);
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public:
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void on_power_changed(void) override;
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void on_init_changed(void) override;
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private:
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uint32_t _currentCylinder;
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uint32_t _driveNumber;
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bool _ready;
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bool _lst;
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bool _aoe;
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bool _iae;
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bool _wle;
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bool _pip;
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bool _vv;
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bool ValidateCHS(uint32_t cylinder, uint32_t track, uint32_t sector);
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uint32_t GetSectorForCHS(uint32_t cylinder, uint32_t track, uint32_t sector);
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uint32_t GetBlockSize();
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bool SetDriveType(const char* typeName);
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void UpdateCapacity();
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struct DriveInfo
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{
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char TypeName[16];
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uint16_t TypeNumber;
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uint16_t Cylinders;
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uint16_t Tracks;
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uint16_t Sectors;
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} _driveInfo;
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DriveInfo g_driveTable[5]
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{
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// Name Type Cylinders Tracks Sectors
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{ "RP04", 020, 411, 19, 22 },
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{ "RP05", 021, 411, 19, 22 },
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{ "RP06", 022, 815, 19, 22 },
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{ "RP07", 023, 630, 32, 50 }, // TODO: verify
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{ "", 0, 0, 0, 0 },
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};
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};
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