src/ds/core.c (view raw)
1/* Copyright (c) 2013-2016 Jeffrey Pfau
2 *
3 * This Source Code Form is subject to the terms of the Mozilla Public
4 * License, v. 2.0. If a copy of the MPL was not distributed with this
5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
6#include <mgba/ds/core.h>
7
8#include <mgba/core/cheats.h>
9#include <mgba/core/core.h>
10#include <mgba/core/log.h>
11#include <mgba/internal/arm/debugger/debugger.h>
12#include <mgba/internal/ds/ds.h>
13#include <mgba/internal/ds/extra/cli.h>
14#include <mgba/internal/ds/gx/software.h>
15#include <mgba/internal/ds/input.h>
16#include <mgba/internal/ds/renderers/software.h>
17#include <mgba-util/memory.h>
18#include <mgba-util/patch.h>
19#include <mgba-util/vfs.h>
20
21struct DSCore {
22 struct mCore d;
23 struct ARMCore* arm7;
24 struct ARMCore* arm9;
25 struct DSVideoSoftwareRenderer renderer;
26 struct DSGXSoftwareRenderer gxRenderer;
27 int keys;
28 int cursorX;
29 int cursorY;
30 bool touchDown;
31 struct mCPUComponent* components[CPU_COMPONENT_MAX];
32 struct mDebuggerPlatform* debuggerPlatform;
33 struct mCheatDevice* cheatDevice;
34};
35
36static bool _DSCoreInit(struct mCore* core) {
37 struct DSCore* dscore = (struct DSCore*) core;
38
39 struct ARMCore* arm7 = anonymousMemoryMap(sizeof(struct ARMCore));
40 struct ARMCore* arm9 = anonymousMemoryMap(sizeof(struct ARMCore));
41 struct DS* ds = anonymousMemoryMap(sizeof(struct DS));
42 if (!arm7 || !arm9 || !ds) {
43 free(arm7);
44 free(arm9);
45 free(ds);
46 return false;
47 }
48 core->cpu = arm9;
49 core->board = ds;
50 core->debugger = NULL;
51 dscore->arm7 = arm7;
52 dscore->arm9 = arm9;
53 dscore->debuggerPlatform = NULL;
54 dscore->cheatDevice = NULL;
55
56 DSCreate(ds);
57 memset(dscore->components, 0, sizeof(dscore->components));
58 ARMSetComponents(arm7, &ds->d, CPU_COMPONENT_MAX, dscore->components);
59 ARMSetComponents(arm9, &ds->d, CPU_COMPONENT_MAX, dscore->components);
60 ARMInit(arm7);
61 ARMInit(arm9);
62
63 DSVideoSoftwareRendererCreate(&dscore->renderer);
64 DSGXSoftwareRendererCreate(&dscore->gxRenderer);
65 dscore->renderer.outputBuffer = NULL;
66
67 dscore->keys = 0;
68 ds->keySource = &dscore->keys;
69 dscore->cursorX = 0;
70 ds->cursorSourceX = &dscore->cursorX;
71 dscore->cursorY = 0;
72 ds->cursorSourceY = &dscore->cursorY;
73 dscore->touchDown = false;
74 ds->touchSource = &dscore->touchDown;
75
76#if !defined(MINIMAL_CORE) || MINIMAL_CORE < 2
77 mDirectorySetInit(&core->dirs);
78#endif
79
80#ifndef MINIMAL_CORE
81 core->inputInfo = &DSInputInfo; // TODO: GBInputInfo
82#endif
83
84 return true;
85}
86
87static void _DSCoreDeinit(struct mCore* core) {
88 struct DSCore* dscore = (struct DSCore*) core;
89 ARMDeinit(dscore->arm7);
90 ARMDeinit(dscore->arm9);
91 DSDestroy(core->board);
92 mappedMemoryFree(dscore->arm7, sizeof(struct ARMCore));
93 mappedMemoryFree(dscore->arm9, sizeof(struct ARMCore));
94 mappedMemoryFree(core->board, sizeof(struct DS));
95#if !defined(MINIMAL_CORE) || MINIMAL_CORE < 2
96 mDirectorySetDeinit(&core->dirs);
97#endif
98
99 free(dscore->debuggerPlatform);
100 if (dscore->cheatDevice) {
101 mCheatDeviceDestroy(dscore->cheatDevice);
102 }
103 free(dscore->cheatDevice);
104 free(core);
105}
106
107static enum mPlatform _DSCorePlatform(const struct mCore* core) {
108 UNUSED(core);
109 return PLATFORM_DS;
110}
111
112static void _DSCoreSetSync(struct mCore* core, struct mCoreSync* sync) {
113 struct DS* ds = core->board;
114 ds->sync = sync;
115}
116
117static void _DSCoreLoadConfig(struct mCore* core, const struct mCoreConfig* config) {
118 struct DS* ds = core->board;
119 struct VFile* bios = NULL;
120
121 mCoreConfigCopyValue(&core->config, config, "ds.bios7");
122 mCoreConfigCopyValue(&core->config, config, "ds.bios9");
123 mCoreConfigCopyValue(&core->config, config, "ds.firmware");
124}
125
126static void _DSCoreDesiredVideoDimensions(struct mCore* core, unsigned* width, unsigned* height) {
127 UNUSED(core);
128 *width = DS_VIDEO_HORIZONTAL_PIXELS;
129 *height = DS_VIDEO_VERTICAL_PIXELS * 2;
130}
131
132static void _DSCoreSetVideoBuffer(struct mCore* core, color_t* buffer, size_t stride) {
133 struct DSCore* dscore = (struct DSCore*) core;
134 dscore->renderer.outputBuffer = buffer;
135 dscore->renderer.outputBufferStride = stride;
136}
137
138static void _DSCoreGetPixels(struct mCore* core, const void** buffer, size_t* stride) {
139 struct DSCore* dscore = (struct DSCore*) core;
140 dscore->renderer.d.getPixels(&dscore->renderer.d, stride, buffer);
141}
142
143static void _DSCorePutPixels(struct mCore* core, const void* buffer, size_t stride) {
144 struct DSCore* dscore = (struct DSCore*) core;
145 dscore->renderer.d.putPixels(&dscore->renderer.d, stride, buffer);
146}
147
148static struct blip_t* _DSCoreGetAudioChannel(struct mCore* core, int ch) {
149 return NULL;
150}
151
152static void _DSCoreSetAudioBufferSize(struct mCore* core, size_t samples) {
153}
154
155static size_t _DSCoreGetAudioBufferSize(struct mCore* core) {
156 return 2048;
157}
158
159static void _DSCoreSetCoreCallbacks(struct mCore* core, struct mCoreCallbacks* coreCallbacks) {
160 struct DS* ds = core->board;
161 ds->coreCallbacks = coreCallbacks;
162}
163
164static void _DSCoreSetAVStream(struct mCore* core, struct mAVStream* stream) {
165}
166
167static bool _DSCoreLoadROM(struct mCore* core, struct VFile* vf) {
168 return DSLoadROM(core->board, vf);
169}
170
171static bool _DSCoreLoadBIOS(struct mCore* core, struct VFile* vf, int type) {
172 UNUSED(type);
173 return DSLoadBIOS(core->board, vf);
174}
175
176static bool _DSCoreLoadSave(struct mCore* core, struct VFile* vf) {
177 return DSLoadSave(core->board, vf);
178}
179
180static bool _DSCoreLoadPatch(struct mCore* core, struct VFile* vf) {
181 return false;
182}
183
184static void _DSCoreUnloadROM(struct mCore* core) {
185 return DSUnloadROM(core->board);
186}
187
188static void _DSCoreChecksum(const struct mCore* core, void* data, enum mCoreChecksumType type) {
189}
190
191static void _DSCoreReset(struct mCore* core) {
192 struct DSCore* dscore = (struct DSCore*) core;
193 struct DS* ds = (struct DS*) core->board;
194
195 if (dscore->renderer.outputBuffer) {
196 struct DSVideoRenderer* renderer = &dscore->renderer.d;
197 DSVideoAssociateRenderer(&ds->video, renderer);
198
199 struct DSGXRenderer* gxRenderer = &dscore->gxRenderer.d;
200 DSGXAssociateRenderer(&ds->gx, gxRenderer);
201 }
202
203#if !defined(MINIMAL_CORE) || MINIMAL_CORE < 2
204 struct VFile* bios7 = NULL;
205 struct VFile* bios9 = NULL;
206 struct VFile* firm = NULL;
207 if (core->opts.useBios) {
208 bool found7 = false;
209 bool found9 = false;
210 bool foundFirm = false;
211
212 if (!found7) {
213 const char* configPath = mCoreConfigGetValue(&core->config, "ds.bios7");
214 bios7 = VFileOpen(configPath, O_RDONLY);
215 if (bios7 && DSIsBIOS7(bios7)) {
216 found7 = true;
217 } else if (bios7) {
218 bios7->close(bios7);
219 bios7 = NULL;
220 }
221 }
222
223 if (!found9) {
224 const char* configPath = mCoreConfigGetValue(&core->config, "ds.bios9");
225 bios9 = VFileOpen(configPath, O_RDONLY);
226 if (bios9 && DSIsBIOS9(bios9)) {
227 found9 = true;
228 } else if (bios9) {
229 bios9->close(bios9);
230 bios9 = NULL;
231 }
232 }
233
234 if (!foundFirm) {
235 const char* configPath = mCoreConfigGetValue(&core->config, "ds.firmware");
236 firm = VFileOpen(configPath, O_RDONLY);
237 if (firm && DSIsFirmware(firm)) {
238 foundFirm = true;
239 } else if (firm) {
240 firm->close(firm);
241 firm = NULL;
242 }
243 }
244
245 if (!found7) {
246 char path[PATH_MAX];
247 mCoreConfigDirectory(path, PATH_MAX);
248 strncat(path, PATH_SEP "ds7_bios.bin", PATH_MAX - strlen(path));
249 bios7 = VFileOpen(path, O_RDONLY);
250 }
251
252 if (!found9) {
253 char path[PATH_MAX];
254 mCoreConfigDirectory(path, PATH_MAX);
255 strncat(path, PATH_SEP "ds9_bios.bin", PATH_MAX - strlen(path));
256 bios9 = VFileOpen(path, O_RDONLY);
257 }
258
259 if (!foundFirm) {
260 char path[PATH_MAX];
261 mCoreConfigDirectory(path, PATH_MAX);
262 strncat(path, PATH_SEP "ds_firmware.bin", PATH_MAX - strlen(path));
263 firm = VFileOpen(path, O_RDWR);
264 }
265 }
266 if (bios7) {
267 DSLoadBIOS(ds, bios7);
268 }
269 if (bios9) {
270 DSLoadBIOS(ds, bios9);
271 }
272 if (firm) {
273 DSLoadFirmware(ds, firm);
274 }
275#endif
276
277 ARMReset(ds->ds7.cpu);
278 ARMReset(ds->ds9.cpu);
279}
280
281static void _DSCoreRunFrame(struct mCore* core) {
282 struct DSCore* dscore = (struct DSCore*) core;
283 struct DS* ds = core->board;
284 int32_t frameCounter = ds->video.frameCounter;
285 while (ds->video.frameCounter == frameCounter) {
286 DSRunLoop(core->board);
287 }
288}
289
290static void _DSCoreRunLoop(struct mCore* core) {
291 DSRunLoop(core->board);
292}
293
294static void _DSCoreStep(struct mCore* core) {
295 struct DSCore* dscore = (struct DSCore*) core;
296 if (core->cpu == dscore->arm9) {
297 DS9Step(core->board);
298 } else {
299 DS7Step(core->board);
300 }
301}
302
303static size_t _DSCoreStateSize(struct mCore* core) {
304 UNUSED(core);
305 return 0;
306}
307
308static bool _DSCoreLoadState(struct mCore* core, const void* state) {
309 return false;
310}
311
312static bool _DSCoreSaveState(struct mCore* core, void* state) {
313 return false;
314}
315
316static void _DSCoreSetKeys(struct mCore* core, uint32_t keys) {
317 struct DSCore* dscore = (struct DSCore*) core;
318 dscore->keys = keys;
319}
320
321static void _DSCoreAddKeys(struct mCore* core, uint32_t keys) {
322 struct DSCore* dscore = (struct DSCore*) core;
323 dscore->keys |= keys;
324}
325
326static void _DSCoreClearKeys(struct mCore* core, uint32_t keys) {
327 struct DSCore* dscore = (struct DSCore*) core;
328 dscore->keys &= ~keys;
329}
330
331static void _DSCoreSetCursor(struct mCore* core, int x, int y, bool down) {
332 struct DSCore* dscore = (struct DSCore*) core;
333 dscore->cursorX = x;
334 dscore->cursorY = y - DS_VIDEO_VERTICAL_PIXELS;
335 if ((down && y >= 0) || !down) {
336 dscore->touchDown = down;
337 }
338}
339
340static int32_t _DSCoreFrameCounter(const struct mCore* core) {
341 struct DS* ds = core->board;
342 return ds->video.frameCounter;
343}
344
345static int32_t _DSCoreFrameCycles(const struct mCore* core) {
346 UNUSED(core);
347 return DS_VIDEO_TOTAL_LENGTH;
348}
349
350static int32_t _DSCoreFrequency(const struct mCore* core) {
351 UNUSED(core);
352 return DS_ARM946ES_FREQUENCY;
353}
354
355static void _DSCoreGetGameTitle(const struct mCore* core, char* title) {
356 DSGetGameTitle(core->board, title);
357}
358
359static void _DSCoreGetGameCode(const struct mCore* core, char* title) {
360 DSGetGameCode(core->board, title);
361}
362
363static void _DSCoreSetRTC(struct mCore* core, struct mRTCSource* rtc) {
364 struct DS* ds = core->board;
365 ds->rtcSource = rtc;
366}
367
368static void _DSCoreSetRotation(struct mCore* core, struct mRotationSource* rotation) {
369}
370
371static void _DSCoreSetRumble(struct mCore* core, struct mRumble* rumble) {
372 struct DS* ds = core->board;
373 ds->rumble = rumble;
374}
375
376static uint32_t _DSCoreBusRead8(struct mCore* core, uint32_t address) {
377 struct ARMCore* cpu = core->cpu;
378 return cpu->memory.load8(cpu, address, 0);
379}
380
381static uint32_t _DSCoreBusRead16(struct mCore* core, uint32_t address) {
382 struct ARMCore* cpu = core->cpu;
383 return cpu->memory.load16(cpu, address, 0);
384
385}
386
387static uint32_t _DSCoreBusRead32(struct mCore* core, uint32_t address) {
388 struct ARMCore* cpu = core->cpu;
389 return cpu->memory.load32(cpu, address, 0);
390}
391
392static void _DSCoreBusWrite8(struct mCore* core, uint32_t address, uint8_t value) {
393 struct ARMCore* cpu = core->cpu;
394 cpu->memory.store8(cpu, address, value, 0);
395}
396
397static void _DSCoreBusWrite16(struct mCore* core, uint32_t address, uint16_t value) {
398 struct ARMCore* cpu = core->cpu;
399 cpu->memory.store16(cpu, address, value, 0);
400}
401
402static void _DSCoreBusWrite32(struct mCore* core, uint32_t address, uint32_t value) {
403 struct ARMCore* cpu = core->cpu;
404 cpu->memory.store32(cpu, address, value, 0);
405}
406
407static uint32_t _DSCoreRawRead8(struct mCore* core, uint32_t address, int segment) {
408 // TODO: Raw
409 struct ARMCore* cpu = core->cpu;
410 return cpu->memory.load8(cpu, address, 0);
411}
412
413static uint32_t _DSCoreRawRead16(struct mCore* core, uint32_t address, int segment) {
414 // TODO: Raw
415 struct ARMCore* cpu = core->cpu;
416 return cpu->memory.load16(cpu, address, 0);
417}
418
419static uint32_t _DSCoreRawRead32(struct mCore* core, uint32_t address, int segment) {
420 // TODO: Raw
421 struct ARMCore* cpu = core->cpu;
422 return cpu->memory.load32(cpu, address, 0);
423}
424
425static void _DSCoreRawWrite8(struct mCore* core, uint32_t address, int segment, uint8_t value) {
426}
427
428static void _DSCoreRawWrite16(struct mCore* core, uint32_t address, int segment, uint16_t value) {
429}
430
431static void _DSCoreRawWrite32(struct mCore* core, uint32_t address, int segment, uint32_t value) {
432}
433
434#ifdef USE_DEBUGGERS
435static bool _DSCoreSupportsDebuggerType(struct mCore* core, enum mDebuggerType type) {
436 UNUSED(core);
437 switch (type) {
438 case DEBUGGER_CLI:
439 return true;
440#ifdef USE_GDB_STUB
441 case DEBUGGER_GDB:
442 return true;
443#endif
444 default:
445 return false;
446 }
447}
448
449static struct mDebuggerPlatform* _DSCoreDebuggerPlatform(struct mCore* core) {
450 struct DSCore* dscore = (struct DSCore*) core;
451 if (!dscore->debuggerPlatform) {
452 dscore->debuggerPlatform = ARMDebuggerPlatformCreate();
453 }
454 return dscore->debuggerPlatform;
455}
456
457static struct CLIDebuggerSystem* _DSCoreCliDebuggerSystem(struct mCore* core) {
458 return &DSCLIDebuggerCreate(core)->d;
459}
460
461static void _DSCoreAttachDebugger(struct mCore* core, struct mDebugger* debugger) {
462 if (core->debugger) {
463 DSDetachDebugger(core->board);
464 }
465 DSAttachDebugger(core->board, debugger);
466 core->debugger = debugger;
467}
468
469static void _DSCoreDetachDebugger(struct mCore* core) {
470 DSDetachDebugger(core->board);
471 core->debugger = NULL;
472}
473#endif
474
475static struct mCheatDevice* _DSCoreCheatDevice(struct mCore* core) {
476 return NULL;
477}
478
479static size_t _DSCoreSavedataClone(struct mCore* core, void** sram) {
480 return 0;
481}
482
483static bool _DSCoreSavedataRestore(struct mCore* core, const void* sram, size_t size, bool writeback) {
484 return false;
485}
486
487struct mCore* DSCoreCreate(void) {
488 struct DSCore* dscore = malloc(sizeof(*dscore));
489 struct mCore* core = &dscore->d;
490 memset(&core->opts, 0, sizeof(core->opts));
491 core->cpu = NULL;
492 core->board = NULL;
493 core->debugger = NULL;
494 core->init = _DSCoreInit;
495 core->deinit = _DSCoreDeinit;
496 core->platform = _DSCorePlatform;
497 core->setSync = _DSCoreSetSync;
498 core->loadConfig = _DSCoreLoadConfig;
499 core->desiredVideoDimensions = _DSCoreDesiredVideoDimensions;
500 core->setVideoBuffer = _DSCoreSetVideoBuffer;
501 core->getPixels = _DSCoreGetPixels;
502 core->putPixels = _DSCorePutPixels;
503 core->getAudioChannel = _DSCoreGetAudioChannel;
504 core->setAudioBufferSize = _DSCoreSetAudioBufferSize;
505 core->getAudioBufferSize = _DSCoreGetAudioBufferSize;
506 core->setCoreCallbacks = _DSCoreSetCoreCallbacks;
507 core->setAVStream = _DSCoreSetAVStream;
508 core->isROM = DSIsROM;
509 core->loadROM = _DSCoreLoadROM;
510 core->loadBIOS = _DSCoreLoadBIOS;
511 core->loadSave = _DSCoreLoadSave;
512 core->loadPatch = _DSCoreLoadPatch;
513 core->unloadROM = _DSCoreUnloadROM;
514 core->checksum = _DSCoreChecksum;
515 core->reset = _DSCoreReset;
516 core->runFrame = _DSCoreRunFrame;
517 core->runLoop = _DSCoreRunLoop;
518 core->step = _DSCoreStep;
519 core->stateSize = _DSCoreStateSize;
520 core->loadState = _DSCoreLoadState;
521 core->saveState = _DSCoreSaveState;
522 core->setKeys = _DSCoreSetKeys;
523 core->addKeys = _DSCoreAddKeys;
524 core->clearKeys = _DSCoreClearKeys;
525 core->setCursor = _DSCoreSetCursor;
526 core->frameCounter = _DSCoreFrameCounter;
527 core->frameCycles = _DSCoreFrameCycles;
528 core->frequency = _DSCoreFrequency;
529 core->getGameTitle = _DSCoreGetGameTitle;
530 core->getGameCode = _DSCoreGetGameCode;
531 core->setRTC = _DSCoreSetRTC;
532 core->setRotation = _DSCoreSetRotation;
533 core->setRumble = _DSCoreSetRumble;
534 core->busRead8 = _DSCoreBusRead8;
535 core->busRead16 = _DSCoreBusRead16;
536 core->busRead32 = _DSCoreBusRead32;
537 core->busWrite8 = _DSCoreBusWrite8;
538 core->busWrite16 = _DSCoreBusWrite16;
539 core->busWrite32 = _DSCoreBusWrite32;
540 core->rawRead8 = _DSCoreRawRead8;
541 core->rawRead16 = _DSCoreRawRead16;
542 core->rawRead32 = _DSCoreRawRead32;
543 core->rawWrite8 = _DSCoreRawWrite8;
544 core->rawWrite16 = _DSCoreRawWrite16;
545 core->rawWrite32 = _DSCoreRawWrite32;
546#ifdef USE_DEBUGGERS
547 core->supportsDebuggerType = _DSCoreSupportsDebuggerType;
548 core->debuggerPlatform = _DSCoreDebuggerPlatform;
549 core->cliDebuggerSystem = _DSCoreCliDebuggerSystem;
550 core->attachDebugger = _DSCoreAttachDebugger;
551 core->detachDebugger = _DSCoreDetachDebugger;
552#endif
553 core->cheatDevice = _DSCoreCheatDevice;
554 core->savedataClone = _DSCoreSavedataClone;
555 core->savedataRestore = _DSCoreSavedataRestore;
556 return core;
557}