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 ***************************************************************************/
30 #define TX_EMPTY 0x0004
31 #define PARITY_ERR 0x0008
32 #define RX_OVERRUN 0x0010
33 #define FRAMING_ERR 0x0020
34 #define SYNC_DETECT 0x0040
40 #define TX_PERM 0x0001
42 #define RX_PERM 0x0004
44 #define RESET_ERR 0x0010
46 #define SIO_RESET 0x0040
48 // *** FOR WORKS ON PADS AND MEMORY CARDS *****
50 static unsigned char buf[256];
51 unsigned char cardh[4] = { 0x00, 0x00, 0x5a, 0x5d };
53 // Transfer Ready and the Buffer is Empty
54 // static unsigned short StatReg = 0x002b;
55 static unsigned short StatReg = TX_RDY | TX_EMPTY;
56 static unsigned short ModeReg;
57 static unsigned short CtrlReg;
58 static unsigned short BaudReg;
60 static unsigned int bufcount;
61 static unsigned int parp;
62 static unsigned int mcdst, rdwr;
63 static unsigned char adrH, adrL;
64 static unsigned int padst;
66 char Mcd1Data[MCD_SIZE], Mcd2Data[MCD_SIZE];
68 #define SIO_INT(eCycle) { \
70 psxRegs.interrupt |= (1 << PSXINT_SIO); \
71 psxRegs.intCycle[PSXINT_SIO].cycle = eCycle; \
72 psxRegs.intCycle[PSXINT_SIO].sCycle = psxRegs.cycle; \
73 new_dyna_set_event(PSXINT_SIO, eCycle); \
78 // 4us * 8bits = (PSXCLK / 1000000) * 32; (linuzappz)
79 // TODO: add SioModePrescaler and BaudReg
80 #define SIO_CYCLES 535
82 void sioWrite8(unsigned char value) {
84 PAD_LOG("sio write8 %x\n", value);
87 case 1: SIO_INT(SIO_CYCLES);
88 if ((value & 0x40) == 0x40) {
91 switch (CtrlReg & 0x2002) {
93 buf[parp] = PAD1_poll(value);
96 buf[parp] = PAD2_poll(value);
100 // SysPrintf("%x: %x, %x, %x, %x\n", CtrlReg&0x2002, buf[2], buf[3], buf[4], buf[5]);
103 if (!(buf[parp] & 0x0f)) {
106 bufcount = 2 + (buf[parp] & 0x0f) * 2;
108 if (buf[parp] == 0x41) {
123 /* if (buf[1] == 0x45) {
128 if (!Config.UseNet) {
129 switch (CtrlReg & 0x2002) {
130 case 0x0002: buf[parp] = PAD1_poll(value); break;
131 case 0x2002: buf[parp] = PAD2_poll(value); break;
135 if (parp == bufcount) { padst = 0; return; }
143 if (rdwr) { parp++; return; }
146 case 0x52: rdwr = 1; break;
147 case 0x57: rdwr = 2; break;
176 switch (CtrlReg & 0x2002) {
178 memcpy(&buf[4], Mcd1Data + (adrL | (adrH << 8)) * 128, 128);
181 memcpy(&buf[4], Mcd2Data + (adrL | (adrH << 8)) * 128, 128);
187 for (i = 2; i < 128 + 4; i++)
208 if (parp < 128) buf[parp + 1] = value;
215 case 0x01: // start pad
216 StatReg |= RX_RDY; // Transfer is Ready
218 if (!Config.UseNet) {
219 switch (CtrlReg & 0x2002) {
220 case 0x0002: buf[0] = PAD1_startPoll(1); break;
221 case 0x2002: buf[0] = PAD2_startPoll(2); break;
224 if ((CtrlReg & 0x2002) == 0x0002) {
229 buf[1] = PAD1_poll(0x42);
230 if (!(buf[1] & 0x0f)) {
233 bufcount = (buf[1] & 0x0f) * 2;
235 buf[2] = PAD1_poll(0);
239 buf[i++] = PAD1_poll(0);
243 if (NET_sendPadData(buf, bufcount) == -1)
246 if (NET_recvPadData(buf, 1) == -1)
248 if (NET_recvPadData(buf + 128, 2) == -1)
251 memcpy(buf, buf + 128, 32);
260 case 0x81: // start memcard
262 memcpy(buf, cardh, 4);
272 void sioWriteStat16(unsigned short value) {
275 void sioWriteMode16(unsigned short value) {
279 void sioWriteCtrl16(unsigned short value) {
280 CtrlReg = value & ~RESET_ERR;
281 if (value & RESET_ERR) StatReg &= ~IRQ;
282 if ((CtrlReg & SIO_RESET) || (!CtrlReg)) {
283 padst = 0; mcdst = 0; parp = 0;
284 StatReg = TX_RDY | TX_EMPTY;
285 psxRegs.interrupt &= ~(1 << PSXINT_SIO);
289 void sioWriteBaud16(unsigned short value) {
293 unsigned char sioRead8() {
294 unsigned char ret = 0;
296 if ((StatReg & RX_RDY)/* && (CtrlReg & RX_PERM)*/) {
297 // StatReg &= ~RX_OVERRUN;
299 if (parp == bufcount) {
300 StatReg &= ~RX_RDY; // Receive is not Ready now
304 switch (CtrlReg & 0x2002) {
306 memcpy(Mcd1Data + (adrL | (adrH << 8)) * 128, &buf[1], 128);
307 SaveMcd(Config.Mcd1, Mcd1Data, (adrL | (adrH << 8)) * 128, 128);
310 memcpy(Mcd2Data + (adrL | (adrH << 8)) * 128, &buf[1], 128);
311 SaveMcd(Config.Mcd2, Mcd2Data, (adrL | (adrH << 8)) * 128, 128);
316 if (padst == 2) padst = 0;
325 PAD_LOG("sio read8 ;ret = %x\n", ret);
330 unsigned short sioReadStat16() {
334 unsigned short sioReadMode16() {
338 unsigned short sioReadCtrl16() {
342 unsigned short sioReadBaud16() {
348 SysMessage(_("Connection closed!\n"));
351 CdromLabel[0] = '\0';
356 void sioInterrupt() {
358 PAD_LOG("Sio Interrupt (CP0.Status = %x)\n", psxRegs.CP0.n.Status);
360 // SysPrintf("Sio Interrupt\n");
362 psxHu32ref(0x1070) |= SWAPu32(0x80);
365 void LoadMcd(int mcd, char *str) {
369 if (mcd == 1) data = Mcd1Data;
370 if (mcd == 2) data = Mcd2Data;
373 sprintf(str, "memcards/card%d.mcd", mcd);
374 SysPrintf(_("No memory card value was specified - creating a default card %s\n"), str);
376 f = fopen(str, "rb");
378 SysPrintf(_("The memory card %s doesn't exist - creating it\n"), str);
380 f = fopen(str, "rb");
384 if (stat(str, &buf) != -1) {
385 if (buf.st_size == MCD_SIZE + 64)
386 fseek(f, 64, SEEK_SET);
387 else if(buf.st_size == MCD_SIZE + 3904)
388 fseek(f, 3904, SEEK_SET);
390 fread(data, 1, MCD_SIZE, f);
394 SysMessage(_("Memory card %s failed to load!\n"), str);
398 SysPrintf(_("Loading memory card %s\n"), str);
399 if (stat(str, &buf) != -1) {
400 if (buf.st_size == MCD_SIZE + 64)
401 fseek(f, 64, SEEK_SET);
402 else if(buf.st_size == MCD_SIZE + 3904)
403 fseek(f, 3904, SEEK_SET);
405 fread(data, 1, MCD_SIZE, f);
410 void LoadMcds(char *mcd1, char *mcd2) {
415 void SaveMcd(char *mcd, char *data, uint32_t adr, int size) {
418 f = fopen(mcd, "r+b");
422 if (stat(mcd, &buf) != -1) {
423 if (buf.st_size == MCD_SIZE + 64)
424 fseek(f, adr + 64, SEEK_SET);
425 else if (buf.st_size == MCD_SIZE + 3904)
426 fseek(f, adr + 3904, SEEK_SET);
428 fseek(f, adr, SEEK_SET);
430 fseek(f, adr, SEEK_SET);
432 fwrite(data + adr, 1, size, f);
438 // try to create it again if we can't open it
439 f = fopen(mcd, "wb");
441 fwrite(data, 1, MCD_SIZE, f);
446 ConvertMcd(mcd, data);
449 void CreateMcd(char *mcd) {
455 f = fopen(mcd, "wb");
459 if (stat(mcd, &buf) != -1) {
460 if ((buf.st_size == MCD_SIZE + 3904) || strstr(mcd, ".gme")) {
484 for (i = 0; i < 7; i++) {
498 for (i = 0; i < 14; i++) {
505 while (s-- > (MCD_SIZE + 1))
507 } else if ((buf.st_size == MCD_SIZE + 64) || strstr(mcd, ".mem") || strstr(mcd, ".vgs")) {
517 for (i = 0; i < 3; i++) {
530 while (s-- > (MCD_SIZE + 1))
538 while (s-- > (MCD_SIZE - 127))
543 for (i = 0; i < 15; i++) { // 15 blocks
564 for (j = 0; j < 117; j++) {
572 for (i = 0; i < 20; i++) {
593 for (j = 0; j < 118; j++) {
605 void ConvertMcd(char *mcd, char *data) {
610 if (strstr(mcd, ".gme")) {
611 f = fopen(mcd, "wb");
613 fwrite(data - 3904, 1, MCD_SIZE + 3904, f);
616 f = fopen(mcd, "r+");
629 for (i = 0; i < 7; i++) {
642 while (s-- > (MCD_SIZE+1)) fputc(0, f);
644 } else if(strstr(mcd, ".mem") || strstr(mcd,".vgs")) {
645 f = fopen(mcd, "wb");
647 fwrite(data-64, 1, MCD_SIZE+64, f);
650 f = fopen(mcd, "r+");
664 while (s-- > (MCD_SIZE+1)) fputc(0, f);
667 f = fopen(mcd, "wb");
669 fwrite(data, 1, MCD_SIZE, f);
675 void GetMcdBlockInfo(int mcd, int block, McdBlock *Info) {
676 unsigned char *data = NULL, *ptr, *str, *sstr;
677 unsigned short clut[16];
681 memset(Info, 0, sizeof(McdBlock));
683 if (mcd == 1) data = Mcd1Data;
684 if (mcd == 2) data = Mcd2Data;
686 ptr = data + block * 8192 + 2;
688 Info->IconCount = *ptr & 0x3;
697 for (i = 0; i < 48; i++) {
702 // Convert ASCII characters to half-width
703 if (c >= 0x8281 && c <= 0x829A)
704 c = (c - 0x8281) + 'a';
705 else if (c >= 0x824F && c <= 0x827A)
706 c = (c - 0x824F) + '0';
707 else if (c == 0x8140) c = ' ';
708 else if (c == 0x8143) c = ',';
709 else if (c == 0x8144) c = '.';
710 else if (c == 0x8146) c = ':';
711 else if (c == 0x8147) c = ';';
712 else if (c == 0x8148) c = '?';
713 else if (c == 0x8149) c = '!';
714 else if (c == 0x815E) c = '/';
715 else if (c == 0x8168) c = '"';
716 else if (c == 0x8169) c = '(';
717 else if (c == 0x816A) c = ')';
718 else if (c == 0x816D) c = '[';
719 else if (c == 0x816E) c = ']';
720 else if (c == 0x817C) c = '-';
723 sstr[x++] = *ptr++; sstr[x++] = *ptr++;
727 str[i] = sstr[x++] = c;
734 ptr = data + block * 8192 + 0x60; // icon palette data
736 for (i = 0; i < 16; i++) {
737 clut[i] = *((unsigned short *)ptr);
741 for (i = 0; i < Info->IconCount; i++) {
742 short *icon = &Info->Icon[i * 16 * 16];
744 ptr = data + block * 8192 + 128 + 128 * i; // icon data
746 for (x = 0; x < 16 * 16; x++) {
747 icon[x++] = clut[*ptr & 0xf];
748 icon[x] = clut[*ptr >> 4];
753 ptr = data + block * 128;
758 strncpy(Info->ID, ptr, 12);
760 strncpy(Info->Name, ptr, 16);
763 int sioFreeze(gzFile f, int Mode) {
764 gzfreeze(buf, sizeof(buf));
765 gzfreeze(&StatReg, sizeof(StatReg));
766 gzfreeze(&ModeReg, sizeof(ModeReg));
767 gzfreeze(&CtrlReg, sizeof(CtrlReg));
768 gzfreeze(&BaudReg, sizeof(BaudReg));
769 gzfreeze(&bufcount, sizeof(bufcount));
770 gzfreeze(&parp, sizeof(parp));
771 gzfreeze(&mcdst, sizeof(mcdst));
772 gzfreeze(&rdwr, sizeof(rdwr));
773 gzfreeze(&adrH, sizeof(adrH));
774 gzfreeze(&adrL, sizeof(adrL));
775 gzfreeze(&padst, sizeof(padst));