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