LXR qemu/include/hw/block/swim.h

   1/*
   2 * QEMU Macintosh floppy disk controller emulator (SWIM)
   3 *
   4 * Copyright (c) 2014-2018 Laurent Vivier <laurent@vivier.eu>
   5 *
   6 * This work is licensed under the terms of the GNU GPL, version 2.  See
   7 * the COPYING file in the top-level directory.
   8 *
   9 */
  10
  11#ifndef SWIM_H
  12#define SWIM_H
  13
  14#include "hw/sysbus.h"
  15#include "qom/object.h"
  16
  17#define SWIM_MAX_FD            2
  18
  19typedef struct SWIMCtrl SWIMCtrl;
  20
  21#define TYPE_SWIM_DRIVE "swim-drive"
  22OBJECT_DECLARE_SIMPLE_TYPE(SWIMDrive, SWIM_DRIVE)
  23
  24struct SWIMDrive {
  25    DeviceState qdev;
  26    int32_t     unit;
  27    BlockConf   conf;
  28};
  29
  30#define TYPE_SWIM_BUS "swim-bus"
  31OBJECT_DECLARE_SIMPLE_TYPE(SWIMBus, SWIM_BUS)
  32
  33struct SWIMBus {
  34    BusState bus;
  35    struct SWIMCtrl *ctrl;
  36};
  37
  38typedef struct FDrive {
  39    SWIMCtrl *swimctrl;
  40    BlockBackend *blk;
  41    BlockConf *conf;
  42} FDrive;
  43
  44struct SWIMCtrl {
  45    MemoryRegion iomem;
  46    FDrive drives[SWIM_MAX_FD];
  47    int mode;
  48    /* IWM mode */
  49    int iwm_switch;
  50    uint16_t regs[8];
  51#define IWM_PH0   0
  52#define IWM_PH1   1
  53#define IWM_PH2   2
  54#define IWM_PH3   3
  55#define IWM_MTR   4
  56#define IWM_DRIVE 5
  57#define IWM_Q6    6
  58#define IWM_Q7    7
  59    uint8_t iwm_data;
  60    uint8_t iwm_mode;
  61    /* SWIM mode */
  62    uint8_t swim_phase;
  63    uint8_t swim_mode;
  64    SWIMBus bus;
  65};
  66
  67#define TYPE_SWIM "swim"
  68OBJECT_DECLARE_SIMPLE_TYPE(Swim, SWIM)
  69
  70struct Swim {
  71    SysBusDevice parent_obj;
  72    SWIMCtrl     ctrl;
  73};
  74#endif
  75