include/hw/misc/mac_via.h

   1 /*
   2  *
   3  * Copyright (c) 2011-2018 Laurent Vivier
   4  *
   5  * This work is licensed under the terms of the GNU GPL, version 2 or later.
   6  * See the COPYING file in the top-level directory.
   7  */
   8
   9 #ifndef HW_MISC_MAC_VIA_H
  10 #define HW_MISC_MAC_VIA_H
  11
  12 #include "exec/memory.h"
  13 #include "hw/sysbus.h"
  14 #include "hw/misc/mos6522.h"
  15 #include "hw/input/adb.h"
  16 #include "qom/object.h"
  17
  18
  19 #define VIA_SIZE   0x2000
  20
  21 /* VIA 1 */
  22 #define VIA1_IRQ_ONE_SECOND_BIT CA2_INT_BIT
  23 #define VIA1_IRQ_60HZ_BIT       CA1_INT_BIT
  24 #define VIA1_IRQ_ADB_READY_BIT  SR_INT_BIT
  25 #define VIA1_IRQ_ADB_DATA_BIT   CB2_INT_BIT
  26 #define VIA1_IRQ_ADB_CLOCK_BIT  CB1_INT_BIT
  27
  28 #define VIA1_IRQ_ONE_SECOND     BIT(VIA1_IRQ_ONE_SECOND_BIT)
  29 #define VIA1_IRQ_60HZ           BIT(VIA1_IRQ_60HZ_BIT)
  30 #define VIA1_IRQ_ADB_READY      BIT(VIA1_IRQ_ADB_READY_BIT)
  31 #define VIA1_IRQ_ADB_DATA       BIT(VIA1_IRQ_ADB_DATA_BIT)
  32 #define VIA1_IRQ_ADB_CLOCK      BIT(VIA1_IRQ_ADB_CLOCK_BIT)
  33
  34
  35 #define TYPE_MOS6522_Q800_VIA1 "mos6522-q800-via1"
  36 OBJECT_DECLARE_SIMPLE_TYPE(MOS6522Q800VIA1State, MOS6522_Q800_VIA1)
  37
  38 struct MOS6522Q800VIA1State {
  39     /*< private >*/
  40     MOS6522State parent_obj;
  41
  42     MemoryRegion via_mem;
  43
  44     qemu_irq auxmode_irq;
  45     uint8_t last_b;
  46
  47     /* RTC */
  48     uint8_t PRAM[256];
  49     BlockBackend *blk;
  50     VMChangeStateEntry *vmstate;
  51
  52     uint32_t tick_offset;
  53
  54     uint8_t data_out;
  55     int data_out_cnt;
  56     uint8_t data_in;
  57     uint8_t data_in_cnt;
  58     uint8_t cmd;
  59     int wprotect;
  60     int alt;
  61
  62     /* ADB */
  63     ADBBusState adb_bus;
  64     qemu_irq adb_data_ready;
  65     int adb_data_in_size;
  66     int adb_data_in_index;
  67     int adb_data_out_index;
  68     uint8_t adb_data_in[128];
  69     uint8_t adb_data_out[16];
  70     uint8_t adb_autopoll_cmd;
  71
  72     /* external timers */
  73     QEMUTimer *one_second_timer;
  74     int64_t next_second;
  75     QEMUTimer *sixty_hz_timer;
  76     int64_t next_sixty_hz;
  77 };
  78
  79
  80 /* VIA 2 */
  81 #define VIA2_IRQ_SCSI_DATA_BIT  CA2_INT_BIT
  82 #define VIA2_IRQ_NUBUS_BIT      CA1_INT_BIT
  83 #define VIA2_IRQ_SCSI_BIT       CB2_INT_BIT
  84 #define VIA2_IRQ_ASC_BIT        CB1_INT_BIT
  85
  86 #define VIA2_IRQ_SCSI_DATA      BIT(VIA2_IRQ_SCSI_DATA_BIT)
  87 #define VIA2_IRQ_NUBUS          BIT(VIA2_IRQ_NUBUS_BIT)
  88 #define VIA2_IRQ_UNUSED         BIT(VIA2_IRQ_SCSI_BIT)
  89 #define VIA2_IRQ_SCSI           BIT(VIA2_IRQ_UNUSED_BIT)
  90 #define VIA2_IRQ_ASC            BIT(VIA2_IRQ_ASC_BIT)
  91
  92 #define VIA2_NUBUS_IRQ_NB       7
  93
  94 #define VIA2_NUBUS_IRQ_9        0
  95 #define VIA2_NUBUS_IRQ_A        1
  96 #define VIA2_NUBUS_IRQ_B        2
  97 #define VIA2_NUBUS_IRQ_C        3
  98 #define VIA2_NUBUS_IRQ_D        4
  99 #define VIA2_NUBUS_IRQ_E        5
 100 #define VIA2_NUBUS_IRQ_INTVIDEO 6
 101
 102 #define TYPE_MOS6522_Q800_VIA2 "mos6522-q800-via2"
 103 OBJECT_DECLARE_SIMPLE_TYPE(MOS6522Q800VIA2State, MOS6522_Q800_VIA2)
 104
 105 struct MOS6522Q800VIA2State {
 106     /*< private >*/
 107     MOS6522State parent_obj;
 108
 109     MemoryRegion via_mem;
 110 };
 111
 112 #endif