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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:
1.1.1.8 root 7: //
8: // デバイスの基本クラスなど
9: //
1.1 root 10:
1.1.1.8 root 11: #include "device.h"
12: #include "mpu.h"
13: #include "scheduler.h"
1.1 root 14:
15: //
16: // Device
17: //
18:
19: // コンストラクタ
1.1.1.9 ! root 20: Device::Device(int objid_)
! 21: : inherited(objid_)
1.1 root 22: {
23: }
24:
25: // デストラクタ
26: Device::~Device()
27: {
28: }
29:
30: bool
31: Device::Create()
32: {
33: return true;
34: }
35:
36: bool
37: Device::Init()
38: {
1.1.1.9 ! root 39: mpu = GetMPUDevice();
! 40: scheduler = GetScheduler();
! 41:
1.1 root 42: return true;
43: }
44:
45: bool
46: Device::Apply()
47: {
48: return true;
49: }
50:
1.1.1.8 root 51: void
52: Device::ResetHard(bool poweron)
1.1 root 53: {
54: }
55:
1.1.1.8 root 56: void
1.1 root 57: Device::PowerOff()
58: {
59: }
60:
1.1.1.8 root 61: // ログ表示。
62: // VM デバイスでは、仮想時間、PC、オブジェクト名を表示する。
1.1 root 63: void
1.1.1.8 root 64: Device::putlogn(const char *fmt, ...) const
1.1 root 65: {
1.1.1.8 root 66: char buf[1024];
67: va_list ap;
68: uint64 vt;
69: int len;
70:
1.1.1.9 ! root 71: vt = scheduler->GetVirtTime();
1.1.1.8 root 72: len = snprintf(buf, sizeof(buf), "%4d.%03d'%03d'%03d %08x %s ",
73: (int)(vt / 1000 / 1000 / 1000),
74: (int)((vt / 1000 / 1000) % 1000),
75: (int)((vt / 1000) % 1000),
76: (int)(vt % 1000),
1.1.1.9 ! root 77: mpu->GetPPC(),
1.1.1.8 root 78: GetName().c_str());
79:
80: va_start(ap, fmt);
81: vsnprintf(buf + len, sizeof(buf) - len, fmt, ap);
82: va_end(ap);
83:
84: WriteLog(buf);
1.1 root 85: }
86:
87:
88: //
89: // IODevice
90: //
91:
92: // コンストラクタ
1.1.1.9 ! root 93: IODevice::IODevice(int objid_)
! 94: : inherited(objid_)
1.1 root 95: {
96: }
97:
98: // デストラクタ
99: IODevice::~IODevice()
100: {
101: }
102:
1.1.1.9 ! root 103: // 初期化
! 104: bool
! 105: IODevice::Init()
! 106: {
! 107: if (inherited::Init() == false) {
! 108: return false;
! 109: }
! 110:
! 111: return true;
! 112: }
! 113:
1.1 root 114: uint64
115: IODevice::Read8(uint32 addr)
116: {
117: return 0xff;
118: }
119:
120: uint64
121: IODevice::Read16(uint32 addr)
122: {
123: return (Read8(addr) << 8) | Read8(addr + 1);
124: }
125:
126: uint64
127: IODevice::Read32(uint32 addr)
128: {
129: return (Read16(addr) << 16) | Read16(addr + 2);
130: }
131:
132: uint64
133: IODevice::Write8(uint32 addr, uint32 data)
134: {
135: return 0;
136: }
137:
138: uint64
139: IODevice::Write16(uint32 addr, uint32 data)
140: {
141: int64 berr;
142:
1.1.1.2 root 143: berr = Write8(addr, data >> 8);
1.1 root 144: if (berr < 0)
145: return berr;
146: berr = Write8(addr + 1, data & 0xff);
147: if (berr < 0)
148: return berr;
149: return 0;
150: }
151:
152: uint64
153: IODevice::Write32(uint32 addr, uint32 data)
154: {
155: int64 berr;
156:
157: berr = Write16(addr, data >> 16);
158: if (berr < 0)
159: return berr;
160: berr = Write16(addr + 2, data & 0xffff);
161: if (berr < 0)
162: return berr;
163: return 0;
164: }
165:
166: uint64
167: IODevice::Peek8(uint32 addr)
168: {
1.1.1.2 root 169: return 0xff;
1.1 root 170: }
171:
1.1.1.9 ! root 172: uint64
! 173: IODevice::Poke8(uint32 addr, uint32 data)
! 174: {
! 175: return (uint64)-1;
! 176: }
! 177:
! 178: uint64
! 179: IODevice::Poke(uint32 addr, uint32 data)
! 180: {
! 181: return (uint64)-1;
! 182: }
! 183:
1.1 root 184:
185: //
1.1.1.9 ! root 186: // IOContainerDevice
1.1 root 187: //
188:
1.1.1.9 ! root 189: // コンストラクタ
! 190: IOContainerDevice::IOContainerDevice(int objid_)
! 191: : inherited(objid_)
! 192: {
! 193: }
! 194:
! 195: // デストラクタ
! 196: IOContainerDevice::~IOContainerDevice()
! 197: {
! 198: }
! 199:
! 200: // このアドレスを担当する IODevice を再帰的に探して返す。
! 201: IODevice *
! 202: IOContainerDevice::FindDevice(uint32 addr) const
! 203: {
! 204: IODevice *d = GetDevice(addr);
! 205: IOContainerDevice *cd = dynamic_cast<IOContainerDevice *>(d);
! 206:
! 207: if (cd) {
! 208: // 次段はコンテナデバイス
! 209: return cd->FindDevice(addr);
! 210: } else {
! 211: // 次段は終端のデバイス
! 212: return d;
! 213: }
! 214: }
! 215:
! 216:
! 217: //
! 218: // バスエラー
! 219: //
1.1.1.6 root 220:
1.1 root 221: // コンストラクタ
222: BusErrDevice::BusErrDevice()
1.1.1.9 ! root 223: : inherited(OBJ_BUSERR)
1.1 root 224: {
1.1.1.7 root 225: ClearAlias();
226: AddAlias("BusErr");
1.1 root 227: }
228:
1.1.1.8 root 229: // デストラクタ
1.1 root 230: BusErrDevice::~BusErrDevice()
231: {
232: }
233:
234: uint64
235: BusErrDevice::Read8(uint32 addr)
236: {
1.1.1.4 root 237: putlog(1, "$%08x.b", addr);
1.1 root 238: return (uint64)-1;
239: }
240:
241: uint64
242: BusErrDevice::Read16(uint32 addr)
243: {
1.1.1.4 root 244: putlog(1, "$%08x.w", addr);
1.1 root 245: return (uint64)-1;
246: }
247:
248: uint64
249: BusErrDevice::Read32(uint32 addr)
250: {
1.1.1.4 root 251: putlog(1, "$%08x.l", addr);
1.1 root 252: return (uint64)-1;
253: }
254:
255: uint64
256: BusErrDevice::Write8(uint32 addr, uint32 data)
257: {
1.1.1.4 root 258: putlog(1, "$%08x.b <- %02X", addr, data);
1.1 root 259: return (uint64)-1;
260: }
261:
262: uint64
263: BusErrDevice::Write16(uint32 addr, uint32 data)
264: {
1.1.1.4 root 265: putlog(1, "$%08x.w <- %04X", addr, data);
1.1 root 266: return (uint64)-1;
267: }
268:
269: uint64
270: BusErrDevice::Write32(uint32 addr, uint32 data)
271: {
1.1.1.4 root 272: putlog(1, "$%08x.l <- %08X", addr, data);
1.1 root 273: return (uint64)-1;
274: }
275:
276: uint64
277: BusErrDevice::Peek8(uint32 addr)
278: {
279: return (uint64)-1;
280: }
281:
282:
283: //
284: // 何もしないデバイス
285: //
286:
287: // コンストラクタ
1.1.1.7 root 288: NopIODevice::NopIODevice()
1.1.1.9 ! root 289: : inherited(OBJ_NOPIO)
1.1 root 290: {
1.1.1.7 root 291: ClearAlias();
292: AddAlias("NopIO");
1.1 root 293: }
294:
1.1.1.8 root 295: // デストラクタ
1.1.1.7 root 296: NopIODevice::~NopIODevice()
1.1 root 297: {
298: }
299:
300: uint64
1.1.1.7 root 301: NopIODevice::Read8(uint32 addr)
1.1 root 302: {
1.1.1.5 root 303: putlog(1, "$%08x.b", addr);
1.1 root 304: return 0xff;
305: }
306:
307: uint64
1.1.1.7 root 308: NopIODevice::Read16(uint32 addr)
1.1.1.5 root 309: {
310: putlog(1, "$%08x.w", addr);
311: return 0xffff;
312: }
313:
314: uint64
1.1.1.7 root 315: NopIODevice::Read32(uint32 addr)
1.1.1.5 root 316: {
317: putlog(1, "$%08x.l", addr);
318: return 0xffffffff;
319: }
320:
321: uint64
1.1.1.7 root 322: NopIODevice::Write8(uint32 addr, uint32 data)
1.1 root 323: {
1.1.1.5 root 324: putlog(1, "$%08x.b <- $%02x", addr, data);
325: return 0;
326: }
327:
328: uint64
1.1.1.7 root 329: NopIODevice::Write16(uint32 addr, uint32 data)
1.1.1.5 root 330: {
331: putlog(1, "$%08x.w <- $%04x", addr, data);
332: return 0;
333: }
334:
335: uint64
1.1.1.7 root 336: NopIODevice::Write32(uint32 addr, uint32 data)
1.1.1.5 root 337: {
338: putlog(1, "$%08x.l <- $%08x", addr, data);
1.1 root 339: return 0;
340: }
341:
342: uint64
1.1.1.7 root 343: NopIODevice::Peek8(uint32 addr)
1.1 root 344: {
345: return 0xff;
346: }
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