frontend/plugin.c

   1 /*
   2  * (C) notaz, 2010
   3  *
   4  * This work is licensed under the terms of the GNU GPLv2 or later.
   5  * See the COPYING file in the top-level directory.
   6  */
   7
   8 #include <stdio.h>
   9 #include <string.h>
  10 #include <stdint.h>
  11
  12 #include "plugin_lib.h"
  13 #include "plugin.h"
  14
  15 static int dummy_func() {
  16         return 0;
  17 }
  18
  19 static long CDRreadTrack(unsigned char *time) {
  20         fprintf(stderr, "CDRreadTrack\n");
  21         return -1;
  22 }
  23
  24 /* SPU */
  25 extern long SPUopen(void);
  26 extern long SPUinit(void);
  27 extern long SPUshutdown(void);
  28 extern long SPUclose(void);
  29 extern void SPUplaySample(unsigned char);
  30 extern void SPUwriteRegister(unsigned long, unsigned short);
  31 extern unsigned short SPUreadRegister(unsigned long);
  32 extern void SPUwriteDMA(unsigned short);
  33 extern unsigned short SPUreadDMA(void);
  34 extern void SPUwriteDMAMem(unsigned short *, int);
  35 extern void SPUreadDMAMem(unsigned short *, int);
  36 extern void SPUplayADPCMchannel(void *);
  37 extern void SPUregisterCallback(void (*callback)(void));
  38 extern long SPUconfigure(void);
  39 extern long SPUtest(void);
  40 extern void SPUabout(void);
  41 extern long SPUfreeze(unsigned int, void *);
  42 extern void SPUasync(unsigned int);
  43 extern void SPUplayCDDAchannel(short *, int);
  44
  45 /* PAD */
  46 static uint8_t pad_buf[] = { 0x41, 0x5A, 0xFF, 0xFF };
  47 static uint8_t pad_byte;
  48
  49 static unsigned char PADstartPoll(int pad) {
  50         pad_byte = 0;
  51         pad_buf[2] = ~keystate;
  52         pad_buf[3] = ~keystate >> 8;
  53
  54         return 0xFF;
  55 }
  56
  57 static unsigned char PADpoll(unsigned char value) {
  58         if (pad_byte >= 4)
  59                 return 0;
  60
  61         return pad_buf[pad_byte++];
  62 }
  63
  64 /* GPU */
  65 extern long GPUopen(unsigned long *, char *, char *);
  66 extern long GPUinit(void);
  67 extern long GPUshutdown(void);
  68 extern long GPUclose(void);
  69 extern void GPUwriteStatus(uint32_t);
  70 extern void GPUwriteData(uint32_t);
  71 extern void GPUwriteDataMem(uint32_t *, int);
  72 extern uint32_t GPUreadStatus(void);
  73 extern uint32_t GPUreadData(void);
  74 extern void GPUreadDataMem(uint32_t *, int);
  75 extern long GPUdmaChain(uint32_t *,uint32_t);
  76 extern void GPUupdateLace(void);
  77 extern long GPUconfigure(void);
  78 extern long GPUtest(void);
  79 extern void GPUabout(void);
  80 extern void GPUmakeSnapshot(void);
  81 extern void GPUkeypressed(int);
  82 extern void GPUdisplayText(char *);
  83 extern long GPUfreeze(uint32_t, void *);
  84 extern long GPUgetScreenPic(unsigned char *);
  85 extern long GPUshowScreenPic(unsigned char *);
  86 extern void GPUclearDynarec(void (*callback)(void));
  87 extern void GPUvBlank(int);
  88
  89
  90 #define DUMMY(id, name) \
  91         { id, #name, dummy_func }
  92
  93 #define DIRECT(id, name) \
  94         { id, #name, name }
  95
  96 #define DUMMY_CDR(name)  DUMMY(PLUGIN_CDR, name)
  97 #define DUMMY_PAD(name)  DUMMY(PLUGIN_PAD, name)
  98 #define DIRECT_SPU(name) DIRECT(PLUGIN_SPU, name)
  99 #define DIRECT_GPU(name) DIRECT(PLUGIN_GPU, name)
 100 #define DIRECT_PAD(name) DIRECT(PLUGIN_PAD, name)
 101
 102 static const struct {
 103         int id;
 104         const char *name;
 105         void *func;
 106 } plugin_funcs[] = {
 107         /* CDR */
 108         DUMMY_CDR(CDRinit),
 109         DUMMY_CDR(CDRshutdown),
 110         DUMMY_CDR(CDRopen),
 111         DUMMY_CDR(CDRclose),
 112         DUMMY_CDR(CDRtest),
 113         DUMMY_CDR(CDRgetTN),
 114         DUMMY_CDR(CDRgetTD),
 115         DUMMY_CDR(CDRreadTrack),
 116         DUMMY_CDR(CDRgetBuffer),
 117         DUMMY_CDR(CDRgetBufferSub),
 118         DUMMY_CDR(CDRplay),
 119         DUMMY_CDR(CDRstop),
 120         DUMMY_CDR(CDRgetStatus),
 121         DUMMY_CDR(CDRgetDriveLetter),
 122         DUMMY_CDR(CDRconfigure),
 123         DUMMY_CDR(CDRabout),
 124         DUMMY_CDR(CDRsetfilename),
 125         DUMMY_CDR(CDRreadCDDA),
 126         DUMMY_CDR(CDRgetTE),
 127         DIRECT(PLUGIN_CDR, CDRreadTrack),
 128         /* SPU */
 129         DIRECT_SPU(SPUconfigure),
 130         DIRECT_SPU(SPUabout),
 131         DIRECT_SPU(SPUinit),
 132         DIRECT_SPU(SPUshutdown),
 133         DIRECT_SPU(SPUtest),
 134         DIRECT_SPU(SPUopen),
 135         DIRECT_SPU(SPUclose),
 136 //      DIRECT_SPU(SPUplaySample), // unused?
 137         DIRECT_SPU(SPUwriteRegister),
 138         DIRECT_SPU(SPUreadRegister),
 139         DIRECT_SPU(SPUwriteDMA),
 140         DIRECT_SPU(SPUreadDMA),
 141         DIRECT_SPU(SPUwriteDMAMem),
 142         DIRECT_SPU(SPUreadDMAMem),
 143         DIRECT_SPU(SPUplayADPCMchannel),
 144         DIRECT_SPU(SPUfreeze),
 145         DIRECT_SPU(SPUregisterCallback),
 146         DIRECT_SPU(SPUasync),
 147         DIRECT_SPU(SPUplayCDDAchannel),
 148         /* PAD */
 149         DUMMY_PAD(PADconfigure),
 150         DUMMY_PAD(PADabout),
 151         DUMMY_PAD(PADinit),
 152         DUMMY_PAD(PADshutdown),
 153         DUMMY_PAD(PADtest),
 154         DUMMY_PAD(PADopen),
 155         DUMMY_PAD(PADclose),
 156         DUMMY_PAD(PADquery),
 157         DUMMY_PAD(PADreadPort1),
 158         DUMMY_PAD(PADreadPort2),
 159         DUMMY_PAD(PADkeypressed),
 160         DUMMY_PAD(PADsetSensitive),
 161         DIRECT_PAD(PADstartPoll),
 162         DIRECT_PAD(PADpoll),
 163         /* GPU */
 164         DIRECT_GPU(GPUupdateLace),
 165         DIRECT_GPU(GPUinit),
 166         DIRECT_GPU(GPUshutdown),
 167         DIRECT_GPU(GPUconfigure),
 168         DIRECT_GPU(GPUtest),
 169         DIRECT_GPU(GPUabout),
 170         DIRECT_GPU(GPUopen),
 171         DIRECT_GPU(GPUclose),
 172         DIRECT_GPU(GPUreadStatus),
 173         DIRECT_GPU(GPUreadData),
 174         DIRECT_GPU(GPUreadDataMem),
 175         DIRECT_GPU(GPUwriteStatus),
 176         DIRECT_GPU(GPUwriteData),
 177         DIRECT_GPU(GPUwriteDataMem),
 178         DIRECT_GPU(GPUdmaChain),
 179         DIRECT_GPU(GPUkeypressed),
 180         DIRECT_GPU(GPUdisplayText),
 181         DIRECT_GPU(GPUmakeSnapshot),
 182         DIRECT_GPU(GPUfreeze),
 183         DIRECT_GPU(GPUgetScreenPic),
 184         DIRECT_GPU(GPUshowScreenPic),
 185 //      DIRECT_GPU(GPUclearDynarec),
 186 //      DIRECT_GPU(GPUvBlank),
 187 };
 188
 189 void *plugin_link(enum builtint_plugins_e id, const char *sym)
 190 {
 191         int i;
 192
 193         for (i = 0; i < ARRAY_SIZE(plugin_funcs); i++) {
 194                 if (id != plugin_funcs[i].id)
 195                         continue;
 196
 197                 if (strcmp(sym, plugin_funcs[i].name) != 0)
 198                         continue;
 199
 200                 return plugin_funcs[i].func;
 201         }
 202
 203         fprintf(stderr, "plugin_link: missing symbol %d %s\n", id, sym);
 204         return NULL;
 205 }
 206
 207 #ifdef PCNT
 208
 209 /* basic profile stuff */
 210 #include "pcnt.h"
 211
 212 unsigned int pcounters[PCNT_CNT];
 213 unsigned int pcounter_starts[PCNT_CNT];
 214
 215 #define pc_hook_func(name, args, pargs, cnt) \
 216 extern void (*name) args; \
 217 static void (*o_##name) args; \
 218 static void w_##name args \
 219 { \
 220         unsigned int pc_start = pcnt_get(); \
 221         o_##name pargs; \
 222         pcounters[cnt] += pcnt_get() - pc_start; \
 223 }
 224
 225 #define pc_hook_func_ret(retn, name, args, pargs, cnt) \
 226 extern retn (*name) args; \
 227 static retn (*o_##name) args; \
 228 static retn w_##name args \
 229 { \
 230         retn ret; \
 231         unsigned int pc_start = pcnt_get(); \
 232         ret = o_##name pargs; \
 233         pcounters[cnt] += pcnt_get() - pc_start; \
 234         return ret; \
 235 }
 236
 237 pc_hook_func              (GPU_writeStatus, (uint32_t a0), (a0), PCNT_GPU)
 238 pc_hook_func              (GPU_writeData, (uint32_t a0), (a0), PCNT_GPU)
 239 pc_hook_func              (GPU_writeDataMem, (uint32_t *a0, int a1), (a0, a1), PCNT_GPU)
 240 pc_hook_func_ret(uint32_t, GPU_readStatus, (void), (), PCNT_GPU)
 241 pc_hook_func_ret(uint32_t, GPU_readData, (void), (), PCNT_GPU)
 242 pc_hook_func              (GPU_readDataMem, (uint32_t *a0, int a1), (a0, a1), PCNT_GPU)
 243 pc_hook_func_ret(long,     GPU_dmaChain, (uint32_t *a0, int32_t a1), (a0, a1), PCNT_GPU)
 244 pc_hook_func              (GPU_updateLace, (void), (), PCNT_GPU)
 245
 246 pc_hook_func              (SPU_writeRegister, (unsigned long a0, unsigned short a1), (a0, a1), PCNT_SPU)
 247 pc_hook_func_ret(unsigned short,SPU_readRegister, (unsigned long a0), (a0), PCNT_SPU)
 248 pc_hook_func              (SPU_writeDMA, (unsigned short a0), (a0), PCNT_SPU)
 249 pc_hook_func_ret(unsigned short,SPU_readDMA, (void), (), PCNT_SPU)
 250 pc_hook_func              (SPU_writeDMAMem, (unsigned short *a0, int a1), (a0, a1), PCNT_SPU)
 251 pc_hook_func              (SPU_readDMAMem, (unsigned short *a0, int a1), (a0, a1), PCNT_SPU)
 252 pc_hook_func              (SPU_playADPCMchannel, (void *a0), (a0), PCNT_SPU)
 253 pc_hook_func              (SPU_async, (unsigned int a0), (a0), PCNT_SPU)
 254 pc_hook_func              (SPU_playCDDAchannel, (short *a0, int a1), (a0, a1), PCNT_SPU)
 255
 256 #define hook_it(name) { \
 257         o_##name = name; \
 258         name = w_##name; \
 259 }
 260
 261 void pcnt_hook_plugins(void)
 262 {
 263         /* test it first */
 264         pcnt_get();
 265
 266         hook_it(GPU_writeStatus);
 267         hook_it(GPU_writeData);
 268         hook_it(GPU_writeDataMem);
 269         hook_it(GPU_readStatus);
 270         hook_it(GPU_readData);
 271         hook_it(GPU_readDataMem);
 272         hook_it(GPU_dmaChain);
 273         hook_it(GPU_updateLace);
 274         hook_it(SPU_writeRegister);
 275         hook_it(SPU_readRegister);
 276         hook_it(SPU_writeDMA);
 277         hook_it(SPU_readDMA);
 278         hook_it(SPU_writeDMAMem);
 279         hook_it(SPU_readDMAMem);
 280         hook_it(SPU_playADPCMchannel);
 281         hook_it(SPU_async);
 282         hook_it(SPU_playCDDAchannel);
 283 }
 284
 285 #endif