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 #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 76