jcs.org
qemu with hax to log dma reads & writes
jcs.org/2018/11/12/vfio
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
16
17/* VIA 1 */
18#define VIA1_IRQ_ONE_SECOND_BIT 0
19#define VIA1_IRQ_VBLANK_BIT 1
20#define VIA1_IRQ_ADB_READY_BIT 2
21#define VIA1_IRQ_ADB_DATA_BIT 3
22#define VIA1_IRQ_ADB_CLOCK_BIT 4
23
24#define VIA1_IRQ_NB 8
25
26#define VIA1_IRQ_ONE_SECOND (1 << VIA1_IRQ_ONE_SECOND_BIT)
27#define VIA1_IRQ_VBLANK (1 << VIA1_IRQ_VBLANK_BIT)
28#define VIA1_IRQ_ADB_READY (1 << VIA1_IRQ_ADB_READY_BIT)
29#define VIA1_IRQ_ADB_DATA (1 << VIA1_IRQ_ADB_DATA_BIT)
30#define VIA1_IRQ_ADB_CLOCK (1 << VIA1_IRQ_ADB_CLOCK_BIT)
31
32
33#define TYPE_MOS6522_Q800_VIA1 "mos6522-q800-via1"
34#define MOS6522_Q800_VIA1(obj) OBJECT_CHECK(MOS6522Q800VIA1State, (obj), \
35 TYPE_MOS6522_Q800_VIA1)
36
37typedef struct 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} MOS6522Q800VIA1State;
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"
69#define MOS6522_Q800_VIA2(obj) OBJECT_CHECK(MOS6522Q800VIA2State, (obj), \
70 TYPE_MOS6522_Q800_VIA2)
71
72typedef struct MOS6522Q800VIA2State {
73 /*< private >*/
74 MOS6522State parent_obj;
75} MOS6522Q800VIA2State;
76
77
78#define TYPE_MAC_VIA "mac_via"
79#define MAC_VIA(obj) OBJECT_CHECK(MacVIAState, (obj), TYPE_MAC_VIA)
80
81typedef struct MacVIAState {
82 SysBusDevice busdev;
83
84 VMChangeStateEntry *vmstate;
85
86 /* MMIO */
87 MemoryRegion mmio;
88 MemoryRegion via1mem;
89 MemoryRegion via2mem;
90
91 /* VIAs */
92 MOS6522Q800VIA1State mos6522_via1;
93 MOS6522Q800VIA2State mos6522_via2;
94
95 /* RTC */
96 uint32_t tick_offset;
97
98 uint8_t data_out;
99 int data_out_cnt;
100 uint8_t data_in;
101 uint8_t data_in_cnt;
102 uint8_t cmd;
103 int wprotect;
104 int alt;
105 BlockBackend *blk;
106
107 /* ADB */
108 ADBBusState adb_bus;
109 qemu_irq adb_data_ready;
110 int adb_data_in_size;
111 int adb_data_in_index;
112 int adb_data_out_index;
113 uint8_t adb_data_in[128];
114 uint8_t adb_data_out[16];
115 uint8_t adb_autopoll_cmd;
116} MacVIAState;
117
118#endif