static int sxps2_open(struct serio *pserio)
{
struct xps2data *drvdata = pserio->port_data;
int retval;
retval = request_irq(drvdata->irq, &xps2_interrupt, 0,
"xilinx_ps2", drvdata);
if (retval) {
printk(KERN_ERR
"%s: Couldn't allocate interrupt %d.\n",
drvdata->serio.name, drvdata->irq);
return retval;
}
/* start receiption */
XPs2_EnableInterrupt(&drvdata->ps2);
XPs2_Recv(&drvdata->ps2, &drvdata->rxb, 1);
return 0; /* success */
}
static void sxps2_handler(void *CallbackRef, u32 Event, unsigned int EventData)
{
struct xps2data *drvdata = (struct xps2data *)CallbackRef;
u8 c;
switch (Event) {
case XPS2_EVENT_RECV_OVF:
printk(KERN_ERR "%s: receive overrun error.\n",
drvdata->serio.name);
case XPS2_EVENT_RECV_ERROR:
drvdata->dfl |= SERIO_PARITY;
break;
case XPS2_EVENT_SENT_NOACK:
case XPS2_EVENT_TIMEOUT:
drvdata->dfl |= SERIO_TIMEOUT;
break;
case XPS2_EVENT_RECV_DATA:
if (EventData > 0) {
if (EventData != 1) {
printk(KERN_ERR
"%s: wrong rcvd byte count (%d).\n",
drvdata->serio.name, EventData);
}
c = drvdata->rxb;
XPs2_Recv(&drvdata->ps2, &drvdata->rxb, 1);
serio_interrupt(&drvdata->serio, c, drvdata->dfl, NULL);
drvdata->dfl = 0;
}
break;
case XPS2_EVENT_SENT_DATA:
break;
default:
printk(KERN_ERR "%s: unrecognized event %u.\n",
drvdata->serio.name, Event);
}
}
int main (void)
{
XGpio dip;
int dip_check;
static XPs2 Ps2Inst;
XPs2_Config *ConfigPtr;
u32 StatusReg;
u32 BytesReceived;
u8 RxBuffer;
int key_count=0;
int i;
status=PVP;
int x_cur=7, y_cur=7, x_pos=0, y_pos=0;
XGpio_Initialize(&dip, XPAR_DIP_SWITCHES_8BITS_DEVICE_ID);
XGpio_SetDataDirection(&dip, 1, 0xffffffff);
ConfigPtr = XPs2_LookupConfig(XPAR_XPS_PS2_0_0_DEVICE_ID);
XPs2_CfgInitialize(&Ps2Inst, ConfigPtr, ConfigPtr->BaseAddress);
XIntc_RegisterHandler(XPAR_XPS_INTC_0_BASEADDR,
XPAR_XPS_INTC_0_XPS_TIMER_0_INTERRUPT_INTR,
(XInterruptHandler) timer_int_handler,
(void *)XPAR_XPS_TIMER_0_BASEADDR);
XIntc_MasterEnable(XPAR_XPS_INTC_0_BASEADDR);
XIntc_EnableIntr(XPAR_XPS_INTC_0_BASEADDR, 0x1);
XTmrCtr_SetLoadReg(XPAR_XPS_TIMER_0_BASEADDR, 0, 333333);
XTmrCtr_SetControlStatusReg(XPAR_XPS_TIMER_0_BASEADDR, 0, XTC_CSR_INT_OCCURED_MASK | XTC_CSR_LOAD_MASK );
XIntc_EnableIntr(XPAR_XPS_TIMER_0_BASEADDR, XPAR_XPS_TIMER_0_INTERRUPT_MASK);
XTmrCtr_SetControlStatusReg(XPAR_XPS_TIMER_0_BASEADDR, 0, XTC_CSR_ENABLE_TMR_MASK | XTC_CSR_ENABLE_INT_MASK |
XTC_CSR_AUTO_RELOAD_MASK | XTC_CSR_DOWN_COUNT_MASK);
microblaze_enable_interrupts();
InitializeGame(x_cur, y_cur);status=PVP;
xil_printf("-- Game Starts! --\r\n");
xil_printf("\r\nHuman Player's turn!\r\n");
int vga_input;
vga_input=(0<<24)+(0<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(1<<24)+(0<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(2<<24)+(0<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(3<<24)+(0<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(4<<24)+(0<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(5<<24)+(0<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(6<<24)+(0<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(7<<24)+(0<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(8<<24)+(0<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(9<<24)+(0<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(0<<24)+(17<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(1<<24)+(17<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(2<<24)+(17<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(3<<24)+(17<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(4<<24)+(17<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(5<<24)+(17<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(6<<24)+(17<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(7<<24)+(17<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(8<<24)+(17<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(9<<24)+(17<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(0<<24)+(29<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(1<<24)+(29<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(2<<24)+(29<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(3<<24)+(29<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(4<<24)+(29<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(5<<24)+(29<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(6<<24)+(29<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(7<<24)+(29<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(8<<24)+(29<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(9<<24)+(29<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(0<<24)+(8<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(1<<24)+(8<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(2<<24)+(8<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(3<<24)+(8<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(4<<24)+(8<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(5<<24)+(8<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(6<<24)+(8<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(7<<24)+(8<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(8<<24)+(8<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(9<<24)+(8<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(9<<24)+(1<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(9<<24)+(2<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(9<<24)+(3<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(9<<24)+(4<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(9<<24)+(5<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(9<<24)+(6<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(9<<24)+(7<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(9<<24)+(8<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(9<<24)+(9<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(9<<24)+(10<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(9<<24)+(11<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(9<<24)+(12<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(9<<24)+(13<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(9<<24)+(14<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(9<<24)+(15<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(9<<24)+(16<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(9<<24)+(17<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(9<<24)+(18<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(9<<24)+(19<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(9<<24)+(20<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(9<<24)+(21<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(9<<24)+(22<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(9<<24)+(23<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(9<<24)+(24<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(9<<24)+(25<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(9<<24)+(26<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(9<<24)+(27<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(9<<24)+(28<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(9<<24)+(29<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
vga_input=(9<<24)+(30<<16)+(1<<8)+3;
VGA_IP_mWriteReg(XPAR_VGA_IP_0_BASEADDR, 0, vga_input);
while (1)
{
if (turn==HUMAN_PLAYER || (turn==COMPUTER_PLAYER && status==PVP)) {
do {
if (turn==COMPUTER_PLAYER && status==PVC)
break;
dip_check=XGpio_DiscreteRead(&dip, 1);
StatusReg = XPs2_GetStatus(&Ps2Inst);
}while((StatusReg & XPS2_STATUS_RX_FULL) == 0);
BytesReceived = XPs2_Recv(&Ps2Inst, &RxBuffer, 1);
key_count=(key_count+1)%3;
if (key_count==0) {
if (RxBuffer==0x21&& win_flag==0) {
DrawNumber(level,3,2,EMPTY);
if(level==1)
level=2;
else
level=1;
if(status==PVC )
DrawNumber(level,3,2,0);
else if(status==CVP)
DrawNumber(level,3,2,1);
else
DrawNumber(level,3,2,EMPTY);
}
if (RxBuffer==0x1D && win_flag==0) {
EraseCursor(x_cur, y_cur);
if (y_cur<=0)
y_cur=14;
else
y_cur--;
DrawChess(x_cur, y_cur, CURSOR);
}
if (RxBuffer==0x1B && win_flag==0) {
EraseCursor(x_cur, y_cur);
if (y_cur>=14)
y_cur=0;
else
y_cur++;
DrawChess(x_cur, y_cur, CURSOR);
}
if (RxBuffer==0x1C && win_flag==0) {
EraseCursor(x_cur, y_cur);
if (x_cur<=0)
x_cur=14;
else
x_cur--;
DrawChess(x_cur, y_cur, CURSOR);
}
if (RxBuffer==0x23 && win_flag==0) {
EraseCursor(x_cur, y_cur);
if (x_cur>=14)
x_cur=0;
else
x_cur++;
DrawChess(x_cur, y_cur, CURSOR);
}
if (RxBuffer==0x5A && win_flag==0) {
DrawBack(3,1119,EMPTY);
if (board_state[x_cur][y_cur]==EMPTY) {
if(status==CVP)
DrawChess(x_cur, y_cur, 1-turn);
else
DrawChess(x_cur, y_cur, turn);
board_state[x_cur][y_cur]=turn;
board_record[BackTimes].x=x_cur;
board_record[BackTimes].y=y_cur;
BackTimes++;
count=0;
time0=0;
if (turn==COMPUTER_PLAYER)
step_flag=1;
if (CheckWin(x_cur,y_cur,turn)==1) {
xil_printf("\r\nHuman Player wins!\r\n");
win_flag=1;
DrawWinning(0, 1, EMPTY);
if(status==CVP)
DrawWinning(0, 1, 1-turn);
else
DrawWinning(0, 1, turn);
}
if (CheckBan(x_cur,y_cur,turn)==1){
xil_printf("\r\nComputer Player wins!\r\n");
win_flag=1;
DrawWinning(0, 1, EMPTY);
if(status==CVP)
DrawWinning(0, 1, turn);
else
DrawWinning(0, 1, 1-turn);
}
else {
if (turn==HUMAN_PLAYER)
turn=COMPUTER_PLAYER;
else
turn=HUMAN_PLAYER;
xil_printf("\r\nComputer Player's turn!\r\n");
}
}
}
if (RxBuffer==0x29 && turn==HUMAN_PLAYER && win_flag==0) {
count=0;time0=0;
if (status==PVP) {
x_cur=7;
y_cur=7;
for (i=0; i<256; i++) {
board_record[i].x=0;
board_record[i].y=0;
}
InitializeGame(x_cur, y_cur);status=PVP;
DrawStatus(1, 21, EMPTY,status);
status=PVC;
DrawNumber(level,3,2,0);
DrawStatus(1, 21, COMPUTER_PLAYER,status);
}
else if(status==PVC) {
x_cur=7;
y_cur=7;
for (i=0; i<256; i++) {
board_record[i].x=0;
board_record[i].y=0;
}
InitializeGame(x_cur, y_cur);status=PVP;
DrawStatus(1, 21, EMPTY,status);
status=CVP;
DrawNumber(level,3,2,1);
DrawStatus(1, 21, COMPUTER_PLAYER,status);
turn=COMPUTER_PLAYER;
}
else if(status==CVP) {
x_cur=7;
y_cur=7;
for (i=0; i<256; i++) {
board_record[i].x=0;
board_record[i].y=0;
}
InitializeGame(x_cur, y_cur);status=PVP;
DrawStatus(1, 21, EMPTY,status);
status=PVP;
DrawStatus(1, 21, COMPUTER_PLAYER,status);
}
}
if (RxBuffer==0x76) {
x_cur=7;
y_cur=7;
for (i=0; i<256; i++) {
board_record[i].x=0;
board_record[i].y=0;
}
InitializeGame(x_cur, y_cur);status=PVP;
}
if (RxBuffer==0x2D) {
if(BackTimes>0){
BackTimes--;
x_cur=board_record[BackTimes].x;
y_cur=board_record[BackTimes].y;
board_state[x_cur][y_cur]=EMPTY;
DrawChess(x_cur,y_cur,EMPTY);
turn=1-turn;
if(status==PVC)
{
BackTimes--;
x_cur=board_record[BackTimes].x;
y_cur=board_record[BackTimes].y;
board_state[x_cur][y_cur]=EMPTY;
DrawChess(x_cur,y_cur,EMPTY);
turn=HUMAN_PLAYER;
}
DrawBack(3,1119,turn);
}
}
}
}
if (turn==COMPUTER_PLAYER && (status==PVC ||status==CVP )&& win_flag==0) {
if (step_flag==0) {
if (x_cur-1<0)
x_pos=x_cur+1;
else
x_pos=x_cur-1;
y_pos=y_cur;
step_flag=1;
}
else {
if(level==2||level==3){
EvaluateComputerMove(board_state, 0, MIN_INFINITY, MAX_INFINITY, 0, 0);
x_pos=maxMoveX;
y_pos=maxMoveY;
xil_printf("\r\n computer \r\n");}
else
{
everyScore(Computer);
current_pos=best(Computer);
x_pos=current_pos.y;
y_pos=current_pos.x;
xil_printf("\r\n computer \r\n");
}
}
xil_printf("\r\n%x, %x\r\n", x_pos, y_pos);
if(status==CVP)
DrawChess(x_pos, y_pos, 1-turn);
else
DrawChess(x_pos, y_pos, turn);
board_state[x_pos][y_pos]=COMPUTER_PLAYER;
board_record[BackTimes].x=x_pos;
board_record[BackTimes].y=y_pos;
BackTimes++;
count=0;
time0=0;
if (CheckWin(x_pos, y_pos, turn)) {
xil_printf("\r\nComputer Player wins!\r\n");
win_flag=1;
DrawWinning(0,1, EMPTY);
if(status==CVP)
DrawWinning(0,1, 1-turn);
else
DrawWinning(0,1, turn);
turn=HUMAN_PLAYER;
}
else {
turn=HUMAN_PLAYER;
xil_printf("\r\nHuman Player's turn!\r\n");
}
}
}
return 0;
}