75 lines
1.4 KiB
C
75 lines
1.4 KiB
C
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/*
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* QEMU Macintosh floppy disk controller emulator (SWIM)
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*
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* Copyright (c) 2014-2018 Laurent Vivier <laurent@vivier.eu>
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*
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* This work is licensed under the terms of the GNU GPL, version 2. See
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* the COPYING file in the top-level directory.
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*
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*/
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#ifndef SWIM_H
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#define SWIM_H
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#include "hw/sysbus.h"
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#include "qom/object.h"
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#define SWIM_MAX_FD 2
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typedef struct SWIMCtrl SWIMCtrl;
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#define TYPE_SWIM_DRIVE "swim-drive"
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OBJECT_DECLARE_SIMPLE_TYPE(SWIMDrive, SWIM_DRIVE)
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struct SWIMDrive {
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DeviceState qdev;
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int32_t unit;
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BlockConf conf;
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};
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#define TYPE_SWIM_BUS "swim-bus"
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OBJECT_DECLARE_SIMPLE_TYPE(SWIMBus, SWIM_BUS)
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struct SWIMBus {
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BusState bus;
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struct SWIMCtrl *ctrl;
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};
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typedef struct FDrive {
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SWIMCtrl *swimctrl;
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BlockBackend *blk;
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BlockConf *conf;
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} FDrive;
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struct SWIMCtrl {
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MemoryRegion iomem;
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FDrive drives[SWIM_MAX_FD];
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int mode;
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/* IWM mode */
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int iwm_switch;
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uint16_t regs[8];
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#define IWM_PH0 0
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#define IWM_PH1 1
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#define IWM_PH2 2
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#define IWM_PH3 3
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#define IWM_MTR 4
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#define IWM_DRIVE 5
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#define IWM_Q6 6
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#define IWM_Q7 7
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uint8_t iwm_data;
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uint8_t iwm_mode;
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/* SWIM mode */
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uint8_t swim_phase;
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uint8_t swim_mode;
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SWIMBus bus;
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};
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#define TYPE_SWIM "swim"
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OBJECT_DECLARE_SIMPLE_TYPE(Swim, SWIM)
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struct Swim {
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SysBusDevice parent_obj;
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SWIMCtrl ctrl;
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};
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#endif
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