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
  19 typedef struct SWIMCtrl SWIMCtrl;
  20
  21 #define TYPE_SWIM_DRIVE "swim-drive"
  22 OBJECT_DECLARE_SIMPLE_TYPE(SWIMDrive, SWIM_DRIVE)
  23
  24 struct SWIMDrive {
  25     DeviceState qdev;
  26     int32_t     unit;
  27     BlockConf   conf;
  28 };
  29
  30 #define TYPE_SWIM_BUS "swim-bus"
  31 OBJECT_DECLARE_SIMPLE_TYPE(SWIMBus, SWIM_BUS)
  32
  33 struct SWIMBus {
  34     BusState bus;
  35     struct SWIMCtrl *ctrl;
  36 };
  37
  38 typedef struct FDrive {
  39     SWIMCtrl *swimctrl;
  40     BlockBackend *blk;
  41     BlockConf *conf;
  42 } FDrive;
  43
  44 struct 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"
  68 OBJECT_DECLARE_SIMPLE_TYPE(Swim, SWIM)
  69
  70 struct Swim {
  71     SysBusDevice parent_obj;
  72     SWIMCtrl     ctrl;
  73 };
  74 #endif