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 "qom/object.h"
  16
  17
  18 #define VIA_SIZE   0x2000
  19
  20 /* VIA 1 */
  21 #define VIA1_IRQ_ONE_SECOND_BIT CA2_INT_BIT
  22 #define VIA1_IRQ_60HZ_BIT       CA1_INT_BIT
  23 #define VIA1_IRQ_ADB_READY_BIT  SR_INT_BIT
  24 #define VIA1_IRQ_ADB_DATA_BIT   CB2_INT_BIT
  25 #define VIA1_IRQ_ADB_CLOCK_BIT  CB1_INT_BIT
  26
  27 #define VIA1_IRQ_NB             8
  28
  29 #define VIA1_IRQ_ONE_SECOND     BIT(VIA1_IRQ_ONE_SECOND_BIT)
  30 #define VIA1_IRQ_60HZ           BIT(VIA1_IRQ_60HZ_BIT)
  31 #define VIA1_IRQ_ADB_READY      BIT(VIA1_IRQ_ADB_READY_BIT)
  32 #define VIA1_IRQ_ADB_DATA       BIT(VIA1_IRQ_ADB_DATA_BIT)
  33 #define VIA1_IRQ_ADB_CLOCK      BIT(VIA1_IRQ_ADB_CLOCK_BIT)
  34
  35
  36 #define TYPE_MOS6522_Q800_VIA1 "mos6522-q800-via1"
  37 OBJECT_DECLARE_SIMPLE_TYPE(MOS6522Q800VIA1State, MOS6522_Q800_VIA1)
  38
  39 struct MOS6522Q800VIA1State {
  40     /*< private >*/
  41     MOS6522State parent_obj;
  42
  43     MemoryRegion via_mem;
  44
  45     qemu_irq irqs[VIA1_IRQ_NB];
  46     qemu_irq auxmode_irq;
  47     uint8_t last_b;
  48
  49     /* RTC */
  50     uint8_t PRAM[256];
  51     BlockBackend *blk;
  52     VMChangeStateEntry *vmstate;
  53
  54     uint32_t tick_offset;
  55
  56     uint8_t data_out;
  57     int data_out_cnt;
  58     uint8_t data_in;
  59     uint8_t data_in_cnt;
  60     uint8_t cmd;
  61     int wprotect;
  62     int alt;
  63
  64     /* ADB */
  65     ADBBusState adb_bus;
  66     qemu_irq adb_data_ready;
  67     int adb_data_in_size;
  68     int adb_data_in_index;
  69     int adb_data_out_index;
  70     uint8_t adb_data_in[128];
  71     uint8_t adb_data_out[16];
  72     uint8_t adb_autopoll_cmd;
  73
  74     /* external timers */
  75     QEMUTimer *one_second_timer;
  76     int64_t next_second;
  77     QEMUTimer *sixty_hz_timer;
  78     int64_t next_sixty_hz;
  79 };
  80
  81
  82 /* VIA 2 */
  83 #define VIA2_IRQ_SCSI_DATA_BIT  0
  84 #define VIA2_IRQ_NUBUS_BIT      1
  85 #define VIA2_IRQ_UNUSED_BIT     2
  86 #define VIA2_IRQ_SCSI_BIT       3
  87 #define VIA2_IRQ_ASC_BIT        4
  88
  89 #define VIA2_IRQ_NB             8
  90
  91 #define VIA2_IRQ_SCSI_DATA      (1 << VIA2_IRQ_SCSI_DATA_BIT)
  92 #define VIA2_IRQ_NUBUS          (1 << VIA2_IRQ_NUBUS_BIT)
  93 #define VIA2_IRQ_UNUSED         (1 << VIA2_IRQ_SCSI_BIT)
  94 #define VIA2_IRQ_SCSI           (1 << VIA2_IRQ_UNUSED_BIT)
  95 #define VIA2_IRQ_ASC            (1 << VIA2_IRQ_ASC_BIT)
  96
  97 #define VIA2_NUBUS_IRQ_NB       7
  98
  99 #define VIA2_NUBUS_IRQ_9        0
 100 #define VIA2_NUBUS_IRQ_A        1
 101 #define VIA2_NUBUS_IRQ_B        2
 102 #define VIA2_NUBUS_IRQ_C        3
 103 #define VIA2_NUBUS_IRQ_D        4
 104 #define VIA2_NUBUS_IRQ_E        5
 105 #define VIA2_NUBUS_IRQ_INTVIDEO 6
 106
 107 #define TYPE_MOS6522_Q800_VIA2 "mos6522-q800-via2"
 108 OBJECT_DECLARE_SIMPLE_TYPE(MOS6522Q800VIA2State, MOS6522_Q800_VIA2)
 109
 110 struct MOS6522Q800VIA2State {
 111     /*< private >*/
 112     MOS6522State parent_obj;
 113
 114     MemoryRegion via_mem;
 115 };
 116
 117 #endif