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 "qemu/osdep.h"
  15 #include "hw/sysbus.h"
  16
  17 #define SWIM_MAX_FD            2
  18
  19 typedef struct SWIMDrive SWIMDrive;
  20 typedef struct SWIMBus SWIMBus;
  21 typedef struct SWIMCtrl SWIMCtrl;
  22
  23 #define TYPE_SWIM_DRIVE "swim-drive"
  24 #define SWIM_DRIVE(obj) OBJECT_CHECK(SWIMDrive, (obj), TYPE_SWIM_DRIVE)
  25
  26 struct SWIMDrive {
  27     DeviceState qdev;
  28     int32_t     unit;
  29     BlockConf   conf;
  30 };
  31
  32 #define TYPE_SWIM_BUS "swim-bus"
  33 #define SWIM_BUS(obj) OBJECT_CHECK(SWIMBus, (obj), TYPE_SWIM_BUS)
  34
  35 struct SWIMBus {
  36     BusState bus;
  37     struct SWIMCtrl *ctrl;
  38 };
  39
  40 typedef struct FDrive {
  41     SWIMCtrl *swimctrl;
  42     BlockBackend *blk;
  43     BlockConf *conf;
  44 } FDrive;
  45
  46 struct SWIMCtrl {
  47     MemoryRegion iomem;
  48     FDrive drives[SWIM_MAX_FD];
  49     int mode;
  50     /* IWM mode */
  51     int iwm_switch;
  52     uint16_t regs[8];
  53 #define IWM_PH0   0
  54 #define IWM_PH1   1
  55 #define IWM_PH2   2
  56 #define IWM_PH3   3
  57 #define IWM_MTR   4
  58 #define IWM_DRIVE 5
  59 #define IWM_Q6    6
  60 #define IWM_Q7    7
  61     uint8_t iwm_data;
  62     uint8_t iwm_mode;
  63     /* SWIM mode */
  64     uint8_t swim_phase;
  65     uint8_t swim_mode;
  66     SWIMBus bus;
  67 };
  68
  69 #define TYPE_SWIM "swim"
  70 #define SWIM(obj) OBJECT_CHECK(Swim, (obj), TYPE_SWIM)
  71
  72 typedef struct Swim {
  73     SysBusDevice parent_obj;
  74     SWIMCtrl     ctrl;
  75 } Swim;
  76 #endif