1 /***************************************************************************
2 * Copyright (C) 2007 Ryan Schultz, PCSX-df Team, PCSX team *
4 * This program is free software; you can redistribute it and/or modify *
5 * it under the terms of the GNU General Public License as published by *
6 * the Free Software Foundation; either version 2 of the License, or *
7 * (at your option) any later version. *
9 * This program is distributed in the hope that it will be useful, *
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
12 * GNU General Public License for more details. *
14 * You should have received a copy of the GNU General Public License *
15 * along with this program; if not, write to the *
16 * Free Software Foundation, Inc., *
17 * 51 Franklin Street, Fifth Floor, Boston, MA 02111-1307 USA. *
18 ***************************************************************************/
20 #include <compat/fopen_utf8.h>
32 #define TX_EMPTY 0x0004
33 #define PARITY_ERR 0x0008
34 #define RX_OVERRUN 0x0010
35 #define FRAMING_ERR 0x0020
36 #define SYNC_DETECT 0x0040
42 #define TX_PERM 0x0001
44 #define RX_PERM 0x0004
46 #define RESET_ERR 0x0010
48 #define SIO_RESET 0x0040
50 // *** FOR WORKS ON PADS AND MEMORY CARDS *****
52 static unsigned char buf[256];
53 static unsigned char cardh1[4] = { 0xff, 0x08, 0x5a, 0x5d };
54 static unsigned char cardh2[4] = { 0xff, 0x08, 0x5a, 0x5d };
56 // Transfer Ready and the Buffer is Empty
57 // static unsigned short StatReg = 0x002b;
58 static unsigned short StatReg = TX_RDY | TX_EMPTY;
59 static unsigned short ModeReg;
60 static unsigned short CtrlReg;
61 static unsigned short BaudReg;
63 static unsigned int bufcount;
64 static unsigned int parp;
65 static unsigned int mcdst, rdwr;
66 static unsigned char adrH, adrL;
67 static unsigned int padst;
69 char Mcd1Data[MCD_SIZE], Mcd2Data[MCD_SIZE];
72 #define SIO_INT(eCycle) { \
74 psxRegs.interrupt |= (1 << PSXINT_SIO); \
75 psxRegs.intCycle[PSXINT_SIO].cycle = eCycle; \
76 psxRegs.intCycle[PSXINT_SIO].sCycle = psxRegs.cycle; \
77 new_dyna_set_event(PSXINT_SIO, eCycle); \
82 // 4us * 8bits = (PSXCLK / 1000000) * 32; (linuzappz)
83 // TODO: add SioModePrescaler and BaudReg
84 #define SIO_CYCLES 535
86 void sioWrite8(unsigned char value) {
88 PAD_LOG("sio write8 %x\n", value);
91 case 1: SIO_INT(SIO_CYCLES);
92 if ((value & 0x40) == 0x40) {
95 switch (CtrlReg & 0x2002) {
97 buf[parp] = PAD1_poll(value);
100 buf[parp] = PAD2_poll(value);
104 // SysPrintf("%x: %x, %x, %x, %x\n", CtrlReg&0x2002, buf[2], buf[3], buf[4], buf[5]);
107 if (!(buf[parp] & 0x0f)) {
110 bufcount = 2 + (buf[parp] & 0x0f) * 2;
112 if (buf[parp] == 0x41) {
122 // NegCon - Wipeout 3
123 if( buf[parp] == 0x23 ) {
141 /* if (buf[1] == 0x45) {
146 if (!Config.UseNet) {
147 switch (CtrlReg & 0x2002) {
148 case 0x0002: buf[parp] = PAD1_poll(value); break;
149 case 0x2002: buf[parp] = PAD2_poll(value); break;
153 if (parp == bufcount) { padst = 0; return; }
161 if (rdwr) { parp++; return; }
164 case 0x52: rdwr = 1; break;
165 case 0x57: rdwr = 2; break;
194 switch (CtrlReg & 0x2002) {
196 memcpy(&buf[4], Mcd1Data + (adrL | (adrH << 8)) * 128, 128);
199 memcpy(&buf[4], Mcd2Data + (adrL | (adrH << 8)) * 128, 128);
205 for (i = 2; i < 128 + 4; i++)
225 if ((rdwr == 1 && parp == 132) ||
226 (rdwr == 2 && parp == 129)) {
227 // clear "new card" flags
228 if (CtrlReg & 0x2000)
234 if (parp < 128) buf[parp + 1] = value;
241 case 0x01: // start pad
242 StatReg |= RX_RDY; // Transfer is Ready
244 if (!Config.UseNet) {
245 switch (CtrlReg & 0x2002) {
246 case 0x0002: buf[0] = PAD1_startPoll(1); break;
247 case 0x2002: buf[0] = PAD2_startPoll(2); break;
250 if ((CtrlReg & 0x2002) == 0x0002) {
255 buf[1] = PAD1_poll(0x42);
256 if (!(buf[1] & 0x0f)) {
259 bufcount = (buf[1] & 0x0f) * 2;
261 buf[2] = PAD1_poll(0);
265 buf[i++] = PAD1_poll(0);
269 if (NET_sendPadData(buf, bufcount) == -1)
272 if (NET_recvPadData(buf, 1) == -1)
274 if (NET_recvPadData(buf + 128, 2) == -1)
277 memcpy(buf, buf + 128, 32);
286 case 0x81: // start memcard
287 if (CtrlReg & 0x2000)
291 memcpy(buf, cardh2, 4);
297 memcpy(buf, cardh1, 4);
316 void sioWriteStat16(unsigned short value) {
319 void sioWriteMode16(unsigned short value) {
323 void sioWriteCtrl16(unsigned short value) {
324 CtrlReg = value & ~RESET_ERR;
325 if (value & RESET_ERR) StatReg &= ~IRQ;
326 if ((CtrlReg & SIO_RESET) || !(CtrlReg & DTR)) {
327 padst = 0; mcdst = 0; parp = 0;
328 StatReg = TX_RDY | TX_EMPTY;
329 psxRegs.interrupt &= ~(1 << PSXINT_SIO);
333 void sioWriteBaud16(unsigned short value) {
337 unsigned char sioRead8() {
338 unsigned char ret = 0;
340 if ((StatReg & RX_RDY)/* && (CtrlReg & RX_PERM)*/) {
341 // StatReg &= ~RX_OVERRUN;
343 if (parp == bufcount) {
344 StatReg &= ~RX_RDY; // Receive is not Ready now
348 switch (CtrlReg & 0x2002) {
350 memcpy(Mcd1Data + (adrL | (adrH << 8)) * 128, &buf[1], 128);
351 SaveMcd(Config.Mcd1, Mcd1Data, (adrL | (adrH << 8)) * 128, 128);
354 memcpy(Mcd2Data + (adrL | (adrH << 8)) * 128, &buf[1], 128);
355 SaveMcd(Config.Mcd2, Mcd2Data, (adrL | (adrH << 8)) * 128, 128);
360 if (padst == 2) padst = 0;
369 PAD_LOG("sio read8 ;ret = %x\n", ret);
374 unsigned short sioReadStat16() {
378 unsigned short sioReadMode16() {
382 unsigned short sioReadCtrl16() {
386 unsigned short sioReadBaud16() {
392 SysMessage(_("Connection closed!\n"));
395 CdromLabel[0] = '\0';
400 void sioInterrupt() {
402 PAD_LOG("Sio Interrupt (CP0.Status = %x)\n", psxRegs.CP0.n.Status);
404 // SysPrintf("Sio Interrupt\n");
405 if (!(StatReg & IRQ)) {
407 psxHu32ref(0x1070) |= SWAPu32(0x80);
411 void LoadMcd(int mcd, char *str) {
415 if (mcd != 1 && mcd != 2)
420 cardh1[1] |= 8; // mark as new
427 McdDisable[mcd - 1] = 0;
429 // memcard1 is handled by libretro
434 if (str == NULL || strcmp(str, "none") == 0) {
435 McdDisable[mcd - 1] = 1;
441 f = fopen_utf8(str, "rb");
443 SysPrintf(_("The memory card %s doesn't exist - creating it\n"), str);
445 f = fopen_utf8(str, "rb");
449 if (stat(str, &buf) != -1) {
450 if (buf.st_size == MCD_SIZE + 64)
451 fseek(f, 64, SEEK_SET);
452 else if(buf.st_size == MCD_SIZE + 3904)
453 fseek(f, 3904, SEEK_SET);
455 fread(data, 1, MCD_SIZE, f);
459 SysMessage(_("Memory card %s failed to load!\n"), str);
463 SysPrintf(_("Loading memory card %s\n"), str);
464 if (stat(str, &buf) != -1) {
465 if (buf.st_size == MCD_SIZE + 64)
466 fseek(f, 64, SEEK_SET);
467 else if(buf.st_size == MCD_SIZE + 3904)
468 fseek(f, 3904, SEEK_SET);
470 fread(data, 1, MCD_SIZE, f);
475 void LoadMcds(char *mcd1, char *mcd2) {
480 void SaveMcd(char *mcd, char *data, uint32_t adr, int size) {
483 if (mcd == NULL || *mcd == 0 || strcmp(mcd, "none") == 0)
486 f = fopen_utf8(mcd, "r+b");
490 if (stat(mcd, &buf) != -1) {
491 if (buf.st_size == MCD_SIZE + 64)
492 fseek(f, adr + 64, SEEK_SET);
493 else if (buf.st_size == MCD_SIZE + 3904)
494 fseek(f, adr + 3904, SEEK_SET);
496 fseek(f, adr, SEEK_SET);
498 fseek(f, adr, SEEK_SET);
500 fwrite(data + adr, 1, size, f);
506 // try to create it again if we can't open it
507 f = fopen(mcd, "wb");
509 fwrite(data, 1, MCD_SIZE, f);
514 ConvertMcd(mcd, data);
517 void CreateMcd(char *mcd) {
523 f = fopen_utf8(mcd, "wb");
527 if (stat(mcd, &buf) != -1) {
528 if ((buf.st_size == MCD_SIZE + 3904) || strstr(mcd, ".gme")) {
552 for (i = 0; i < 7; i++) {
566 for (i = 0; i < 14; i++) {
573 while (s-- > (MCD_SIZE + 1))
575 } else if ((buf.st_size == MCD_SIZE + 64) || strstr(mcd, ".mem") || strstr(mcd, ".vgs")) {
585 for (i = 0; i < 3; i++) {
598 while (s-- > (MCD_SIZE + 1))
606 while (s-- > (MCD_SIZE - 127))
611 for (i = 0; i < 15; i++) { // 15 blocks
632 for (j = 0; j < 117; j++) {
640 for (i = 0; i < 20; i++) {
661 for (j = 0; j < 118; j++) {
673 void ConvertMcd(char *mcd, char *data) {
678 if (strstr(mcd, ".gme")) {
679 f = fopen(mcd, "wb");
681 fwrite(data - 3904, 1, MCD_SIZE + 3904, f);
684 f = fopen(mcd, "r+");
697 for (i = 0; i < 7; i++) {
710 while (s-- > (MCD_SIZE+1)) fputc(0, f);
712 } else if(strstr(mcd, ".mem") || strstr(mcd,".vgs")) {
713 f = fopen(mcd, "wb");
715 fwrite(data-64, 1, MCD_SIZE+64, f);
718 f = fopen(mcd, "r+");
732 while (s-- > (MCD_SIZE+1)) fputc(0, f);
735 f = fopen(mcd, "wb");
737 fwrite(data, 1, MCD_SIZE, f);
743 void GetMcdBlockInfo(int mcd, int block, McdBlock *Info) {
744 char *data = NULL, *ptr, *str, *sstr;
745 unsigned short clut[16];
749 memset(Info, 0, sizeof(McdBlock));
751 if (mcd != 1 && mcd != 2)
754 if (McdDisable[mcd - 1])
757 if (mcd == 1) data = Mcd1Data;
758 if (mcd == 2) data = Mcd2Data;
760 ptr = data + block * 8192 + 2;
762 Info->IconCount = *ptr & 0x3;
771 for (i = 0; i < 48; i++) {
776 // Convert ASCII characters to half-width
777 if (c >= 0x8281 && c <= 0x829A)
778 c = (c - 0x8281) + 'a';
779 else if (c >= 0x824F && c <= 0x827A)
780 c = (c - 0x824F) + '0';
781 else if (c == 0x8140) c = ' ';
782 else if (c == 0x8143) c = ',';
783 else if (c == 0x8144) c = '.';
784 else if (c == 0x8146) c = ':';
785 else if (c == 0x8147) c = ';';
786 else if (c == 0x8148) c = '?';
787 else if (c == 0x8149) c = '!';
788 else if (c == 0x815E) c = '/';
789 else if (c == 0x8168) c = '"';
790 else if (c == 0x8169) c = '(';
791 else if (c == 0x816A) c = ')';
792 else if (c == 0x816D) c = '[';
793 else if (c == 0x816E) c = ']';
794 else if (c == 0x817C) c = '-';
797 sstr[x++] = *ptr++; sstr[x++] = *ptr++;
801 str[i] = sstr[x++] = c;
808 ptr = data + block * 8192 + 0x60; // icon palette data
810 for (i = 0; i < 16; i++) {
811 clut[i] = *((unsigned short *)ptr);
815 for (i = 0; i < Info->IconCount; i++) {
816 short *icon = &Info->Icon[i * 16 * 16];
818 ptr = data + block * 8192 + 128 + 128 * i; // icon data
820 for (x = 0; x < 16 * 16; x++) {
821 icon[x++] = clut[*ptr & 0xf];
822 icon[x] = clut[*ptr >> 4];
827 ptr = data + block * 128;
832 strncpy(Info->ID, ptr, 12);
834 strncpy(Info->Name, ptr, 16);
837 int sioFreeze(void *f, int Mode) {
838 gzfreeze(buf, sizeof(buf));
839 gzfreeze(&StatReg, sizeof(StatReg));
840 gzfreeze(&ModeReg, sizeof(ModeReg));
841 gzfreeze(&CtrlReg, sizeof(CtrlReg));
842 gzfreeze(&BaudReg, sizeof(BaudReg));
843 gzfreeze(&bufcount, sizeof(bufcount));
844 gzfreeze(&parp, sizeof(parp));
845 gzfreeze(&mcdst, sizeof(mcdst));
846 gzfreeze(&rdwr, sizeof(rdwr));
847 gzfreeze(&adrH, sizeof(adrH));
848 gzfreeze(&adrL, sizeof(adrL));
849 gzfreeze(&padst, sizeof(padst));