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1.1 root 1: //
2: // nono
1.1.1.3 root 3: // Copyright (C) 2020 nono project
4: // Licensed under nono-license.txt
1.1 root 5: //
6:
7: #include "device.h"
8: #include "vm.h"
9:
10: // 全デバイスリスト
11: std::vector<Device *> gDevices;
12:
13: //
14: // Device
15: //
16:
17: // コンストラクタ
1.1.1.7 ! root 18: Device::Device(const std::string& objname_)
! 19: : inherited(objname_)
1.1 root 20: {
21: gDevices.push_back(this);
22: }
23:
24: // デストラクタ
25: Device::~Device()
26: {
1.1.1.7 ! root 27: // 自分自身をリストから削除する
! 28: // XXX マルチスレッドな状況からは呼ばれないはず?
! 29: for (auto it = gDevices.begin(); it != gDevices.end(); ++it) {
! 30: if (*it == this) {
! 31: gDevices.erase(it);
! 32: break;
! 33: }
! 34: }
1.1 root 35: }
36:
37: bool
38: Device::Create()
39: {
40: return true;
41: }
42:
43: bool
44: Device::Init()
45: {
46: return true;
47: }
48:
49: bool
50: Device::Apply()
51: {
52: return true;
53: }
54:
55: bool
56: Device::PowerOn()
57: {
58: return true;
59: }
60:
61: bool
62: Device::PowerOff()
63: {
64: return true;
65: }
66:
67: // 本体リセットスイッチによるリセット
68: void
69: Device::ResetHard()
70: {
71: }
72:
73:
74: //
75: // IODevice
76: //
77:
78: // コンストラクタ
1.1.1.7 ! root 79: IODevice::IODevice(const std::string& objname_)
! 80: : inherited(objname_)
1.1 root 81: {
82: devaddr = 0;
83: devlen = 0;
84: }
85:
86: // デストラクタ
87: IODevice::~IODevice()
88: {
89: }
90:
91: uint64
92: IODevice::Read8(uint32 addr)
93: {
94: return 0xff;
95: }
96:
97: uint64
98: IODevice::Read16(uint32 addr)
99: {
100: return (Read8(addr) << 8) | Read8(addr + 1);
101: }
102:
103: uint64
104: IODevice::Read32(uint32 addr)
105: {
106: return (Read16(addr) << 16) | Read16(addr + 2);
107: }
108:
109: uint64
110: IODevice::Write8(uint32 addr, uint32 data)
111: {
112: return 0;
113: }
114:
115: uint64
116: IODevice::Write16(uint32 addr, uint32 data)
117: {
118: int64 berr;
119:
1.1.1.2 root 120: berr = Write8(addr, data >> 8);
1.1 root 121: if (berr < 0)
122: return berr;
123: berr = Write8(addr + 1, data & 0xff);
124: if (berr < 0)
125: return berr;
126: return 0;
127: }
128:
129: uint64
130: IODevice::Write32(uint32 addr, uint32 data)
131: {
132: int64 berr;
133:
134: berr = Write16(addr, data >> 16);
135: if (berr < 0)
136: return berr;
137: berr = Write16(addr + 2, data & 0xffff);
138: if (berr < 0)
139: return berr;
140: return 0;
141: }
142:
143: uint64
144: IODevice::Peek8(uint32 addr)
145: {
1.1.1.2 root 146: return 0xff;
1.1 root 147: }
148:
149:
150: //
151: // バスエラー
152: //
153:
1.1.1.6 root 154: std::unique_ptr<BusErrDevice> gBusErr;
155:
1.1 root 156: // コンストラクタ
157: BusErrDevice::BusErrDevice()
1.1.1.7 ! root 158: : inherited("(BusErr)")
1.1 root 159: {
1.1.1.7 ! root 160: ClearAlias();
! 161: AddAlias("BusErr");
! 162:
1.1 root 163: devaddr = -1; // XXX どうしたもんか
164: }
165:
166: BusErrDevice::~BusErrDevice()
167: {
168: }
169:
170: uint64
171: BusErrDevice::Read8(uint32 addr)
172: {
1.1.1.4 root 173: putlog(1, "$%08x.b", addr);
1.1 root 174: return (uint64)-1;
175: }
176:
177: uint64
178: BusErrDevice::Read16(uint32 addr)
179: {
1.1.1.4 root 180: putlog(1, "$%08x.w", addr);
1.1 root 181: return (uint64)-1;
182: }
183:
184: uint64
185: BusErrDevice::Read32(uint32 addr)
186: {
1.1.1.4 root 187: putlog(1, "$%08x.l", addr);
1.1 root 188: return (uint64)-1;
189: }
190:
191: uint64
192: BusErrDevice::Write8(uint32 addr, uint32 data)
193: {
1.1.1.4 root 194: putlog(1, "$%08x.b <- %02X", addr, data);
1.1 root 195: return (uint64)-1;
196: }
197:
198: uint64
199: BusErrDevice::Write16(uint32 addr, uint32 data)
200: {
1.1.1.4 root 201: putlog(1, "$%08x.w <- %04X", addr, data);
1.1 root 202: return (uint64)-1;
203: }
204:
205: uint64
206: BusErrDevice::Write32(uint32 addr, uint32 data)
207: {
1.1.1.4 root 208: putlog(1, "$%08x.l <- %08X", addr, data);
1.1 root 209: return (uint64)-1;
210: }
211:
212: uint64
213: BusErrDevice::Peek8(uint32 addr)
214: {
215: return (uint64)-1;
216: }
217:
218:
219: //
220: // 何もしないデバイス
221: //
222:
1.1.1.7 ! root 223: std::unique_ptr<NopIODevice> gNopIO;
1.1.1.5 root 224:
1.1 root 225: // コンストラクタ
1.1.1.7 ! root 226: NopIODevice::NopIODevice()
! 227: : inherited("(NopIO)")
1.1 root 228: {
1.1.1.7 ! root 229: ClearAlias();
! 230: AddAlias("NopIO");
1.1 root 231: }
232:
1.1.1.7 ! root 233: NopIODevice::~NopIODevice()
1.1 root 234: {
235: }
236:
237: uint64
1.1.1.7 ! root 238: NopIODevice::Read8(uint32 addr)
1.1 root 239: {
1.1.1.5 root 240: putlog(1, "$%08x.b", addr);
1.1 root 241: return 0xff;
242: }
243:
244: uint64
1.1.1.7 ! root 245: NopIODevice::Read16(uint32 addr)
1.1.1.5 root 246: {
247: putlog(1, "$%08x.w", addr);
248: return 0xffff;
249: }
250:
251: uint64
1.1.1.7 ! root 252: NopIODevice::Read32(uint32 addr)
1.1.1.5 root 253: {
254: putlog(1, "$%08x.l", addr);
255: return 0xffffffff;
256: }
257:
258: uint64
1.1.1.7 ! root 259: NopIODevice::Write8(uint32 addr, uint32 data)
1.1 root 260: {
1.1.1.5 root 261: putlog(1, "$%08x.b <- $%02x", addr, data);
262: return 0;
263: }
264:
265: uint64
1.1.1.7 ! root 266: NopIODevice::Write16(uint32 addr, uint32 data)
1.1.1.5 root 267: {
268: putlog(1, "$%08x.w <- $%04x", addr, data);
269: return 0;
270: }
271:
272: uint64
1.1.1.7 ! root 273: NopIODevice::Write32(uint32 addr, uint32 data)
1.1.1.5 root 274: {
275: putlog(1, "$%08x.l <- $%08x", addr, data);
1.1 root 276: return 0;
277: }
278:
279: uint64
1.1.1.7 ! root 280: NopIODevice::Peek8(uint32 addr)
1.1 root 281: {
282: return 0xff;
283: }
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