qemu

FORK: QEMU emulator
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swim.h (1413B)

      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