LXR qemu/include/hw/misc/mac

   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/* VIA 1 */
  19#define VIA1_IRQ_ONE_SECOND_BIT 0
  20#define VIA1_IRQ_VBLANK_BIT     1
  21#define VIA1_IRQ_ADB_READY_BIT  2
  22#define VIA1_IRQ_ADB_DATA_BIT   3
  23#define VIA1_IRQ_ADB_CLOCK_BIT  4
  24
  25#define VIA1_IRQ_NB             8
  26
  27#define VIA1_IRQ_ONE_SECOND (1 << VIA1_IRQ_ONE_SECOND_BIT)
  28#define VIA1_IRQ_VBLANK     (1 << VIA1_IRQ_VBLANK_BIT)
  29#define VIA1_IRQ_ADB_READY  (1 << VIA1_IRQ_ADB_READY_BIT)
  30#define VIA1_IRQ_ADB_DATA   (1 << VIA1_IRQ_ADB_DATA_BIT)
  31#define VIA1_IRQ_ADB_CLOCK  (1 << VIA1_IRQ_ADB_CLOCK_BIT)
  32
  33
  34#define TYPE_MOS6522_Q800_VIA1 "mos6522-q800-via1"
  35OBJECT_DECLARE_SIMPLE_TYPE(MOS6522Q800VIA1State, MOS6522_Q800_VIA1)
  36
  37struct MOS6522Q800VIA1State {
  38    /*< private >*/
  39    MOS6522State parent_obj;
  40
  41    qemu_irq irqs[VIA1_IRQ_NB];
  42    uint8_t last_b;
  43    uint8_t PRAM[256];
  44
  45    /* external timers */
  46    QEMUTimer *one_second_timer;
  47    int64_t next_second;
  48    QEMUTimer *VBL_timer;
  49    int64_t next_VBL;
  50};
  51
  52
  53/* VIA 2 */
  54#define VIA2_IRQ_SCSI_DATA_BIT  0
  55#define VIA2_IRQ_SLOT_BIT       1
  56#define VIA2_IRQ_UNUSED_BIT     2
  57#define VIA2_IRQ_SCSI_BIT       3
  58#define VIA2_IRQ_ASC_BIT        4
  59
  60#define VIA2_IRQ_NB             8
  61
  62#define VIA2_IRQ_SCSI_DATA  (1 << VIA2_IRQ_SCSI_DATA_BIT)
  63#define VIA2_IRQ_SLOT       (1 << VIA2_IRQ_SLOT_BIT)
  64#define VIA2_IRQ_UNUSED     (1 << VIA2_IRQ_SCSI_BIT)
  65#define VIA2_IRQ_SCSI       (1 << VIA2_IRQ_UNUSED_BIT)
  66#define VIA2_IRQ_ASC        (1 << VIA2_IRQ_ASC_BIT)
  67
  68#define TYPE_MOS6522_Q800_VIA2 "mos6522-q800-via2"
  69OBJECT_DECLARE_SIMPLE_TYPE(MOS6522Q800VIA2State, MOS6522_Q800_VIA2)
  70
  71struct MOS6522Q800VIA2State {
  72    /*< private >*/
  73    MOS6522State parent_obj;
  74};
  75
  76
  77#define TYPE_MAC_VIA "mac_via"
  78OBJECT_DECLARE_SIMPLE_TYPE(MacVIAState, MAC_VIA)
  79
  80struct MacVIAState {
  81    SysBusDevice busdev;
  82
  83    VMChangeStateEntry *vmstate;
  84
  85    /* MMIO */
  86    MemoryRegion mmio;
  87    MemoryRegion via1mem;
  88    MemoryRegion via2mem;
  89
  90    /* VIAs */
  91    MOS6522Q800VIA1State mos6522_via1;
  92    MOS6522Q800VIA2State mos6522_via2;
  93
  94    /* RTC */
  95    uint32_t tick_offset;
  96
  97    uint8_t data_out;
  98    int data_out_cnt;
  99    uint8_t data_in;
 100    uint8_t data_in_cnt;
 101    uint8_t cmd;
 102    int wprotect;
 103    int alt;
 104    BlockBackend *blk;
 105
 106    /* ADB */
 107    ADBBusState adb_bus;
 108    qemu_irq adb_data_ready;
 109    int adb_data_in_size;
 110    int adb_data_in_index;
 111    int adb_data_out_index;
 112    uint8_t adb_data_in[128];
 113    uint8_t adb_data_out[16];
 114    uint8_t adb_autopoll_cmd;
 115};
 116
 117#endif
 118