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/*
* QEMU Macintosh floppy disk controller emulator (SWIM)
*
* Copyright (c) 2014-2018 Laurent Vivier <laurent@vivier.eu>
*
* This work is licensed under the terms of the GNU GPL, version 2. See
* the COPYING file in the top-level directory.
*
*/
#ifndef SWIM_H
#define SWIM_H
#include "hw/block/block.h"
#include "hw/sysbus.h"
#include "qom/object.h"
#define SWIM_MAX_FD 2
typedef struct SWIMCtrl SWIMCtrl;
#define TYPE_SWIM_DRIVE "swim-drive"
OBJECT_DECLARE_SIMPLE_TYPE(SWIMDrive, SWIM_DRIVE)
struct SWIMDrive {
DeviceState qdev;
int32_t unit;
BlockConf conf;
};
#define TYPE_SWIM_BUS "swim-bus"
OBJECT_DECLARE_SIMPLE_TYPE(SWIMBus, SWIM_BUS)
struct SWIMBus {
BusState bus;
struct SWIMCtrl *ctrl;
};
typedef struct FDrive {
SWIMCtrl *swimctrl;
BlockBackend *blk;
BlockConf *conf;
} FDrive;
struct SWIMCtrl {
MemoryRegion swim;
MemoryRegion iwm;
MemoryRegion ism;
FDrive drives[SWIM_MAX_FD];
int mode;
/* IWM mode */
int iwm_switch;
uint8_t iwm_latches;
uint8_t iwmregs[8];
/* SWIM mode */
uint8_t ismregs[16];
uint8_t swim_phase;
uint8_t swim_mode;
uint8_t swim_status;
uint8_t pram[16];
uint8_t pram_idx;
SWIMBus bus;
};
#define TYPE_SWIM "swim"
OBJECT_DECLARE_SIMPLE_TYPE(Swim, SWIM)
struct Swim {
SysBusDevice parent_obj;
SWIMCtrl ctrl;
};
#endif
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