#include "ultra64.h"

#include "controller.h"


#define DMA_QUEUE_SIZE	200
#define PRINTF		osSyncPrintf
#define MSG_FAULT	0x10


/*
 * Thread and stack structures
 */
char   bootStack[STACKSIZE] __attribute__ ((aligned (8)));

static OSThread idleThread;
static char     idleThreadStack[STACKSIZE] __attribute__ ((aligned (8)));

static OSThread mainThread;
static char     mainThreadStack[STACKSIZE] __attribute__ ((aligned (8)));


/*
 * Message queues and message buffers used by this app 
 */
static OSMesg           PiMessages[DMA_QUEUE_SIZE];
static OSMesgQueue      PiMessageQ;

static OSMesg           SiMessages[DMA_QUEUE_SIZE];
static OSMesgQueue      SiMessageQ;

/*
 * Local variables and routines
 */

static void		idleproc(char *);
static void		mainproc(char *);

void
boot(void)
{
    osInitialize();
    osCreateThread(&idleThread, 1, (void(*)(void *))idleproc, (void *)0,
                   idleThreadStack+STACKSIZE, 8);
    osStartThread(&idleThread);
}


static void
idleproc(char *argv)		/* priority 8 */
{
    osCreateViManager(OS_PRIORITY_VIMGR);
    osViSetMode(&osViModeTable[OS_VI_NTSC_LPN1]);

    /*
     * Start PI Mgr for access to cartridge - start before the debugger
     */
    osCreatePiManager((OSPri) OS_PRIORITY_PIMGR, &PiMessageQ, PiMessages,
            DMA_QUEUE_SIZE);

    osCreateMesgQueue(&SiMessageQ, SiMessages, DMA_QUEUE_SIZE);
    osSetEventMesg(OS_EVENT_SI, &SiMessageQ, (OSMesg)DMA_QUEUE_SIZE);

    /*
     * The main thread's priority must be the same or lower than the original
     * idle's thread priority. This allows the idle thread to change its
     * priority to 0 before the main thread starts execution.
     */
    osCreateThread(&mainThread, 3, (void(*)(void *))mainproc, argv,
           mainThreadStack+STACKSIZE/8, (OSPri)7);
    osStartThread(&mainThread);

    osSetThreadPri(0, OS_PRIORITY_IDLE);
    for(;;);                                    /* idle thread */
}

static OSMesgQueue	controllerMsgQ, retraceMessageQ;
static OSMesg		controllerMsgBuf, dummyMessage, retraceMessageBuf;
static OSContStatus	statusdata[MAXCONTROLLERS];
static OSContPad	controllerdata[MAXCONTROLLERS];

static int
initControllers(void) {
    OSMesgQueue     serialMsgQ;
    OSMesg          serialMsg;
    int             i, rv = -1;
    u8              pattern;

    osCreateMesgQueue(&serialMsgQ, &serialMsg, 1);
    osSetEventMesg(OS_EVENT_SI, &serialMsgQ, (OSMesg)1);

    osContInit(&serialMsgQ, &pattern, &statusdata[0]);

    osCreateMesgQueue(&controllerMsgQ, &controllerMsgBuf, 1);
    osSetEventMesg(OS_EVENT_SI, &controllerMsgQ, (OSMesg)0);

    for (i = 0; i < MAXCONTROLLERS; i++) {
//	PRINTF("cont %d errno 0x%x type 0x%x status 0x%x\n", i, statusdata[i].errno, statusdata[i].type, statusdata[i].status);
        if ((pattern & (1<<i)) &&
                !(statusdata[i].errno & CONT_NO_RESPONSE_ERROR))
            rv = i;
    }
#ifdef HIDE_BUG
    {
    int j;
    for(j = 0; j < 1000000; j++) ;
    }
#endif

/* this code will miss the slave controller if there isn't a delay inserted*/
#if 1
    {
    OSContStatus	status[MAXCONTROLLERS];
    osContStartQuery(&controllerMsgQ);
    (void)osRecvMesg(&controllerMsgQ, NULL, OS_MESG_BLOCK);
    osContGetQuery(status);
    for(i = 0; i < MAXCONTROLLERS; i++) {
	PRINTF("cont %d errno 0x%x type 0x%x status 0x%x\n", i, status[i].errno, status[i].type, status[i].status);
    }
}
#endif

    for(;;) ;
    return rv;
}

static void
ReadController(int thecontroller) {
    static u16 button, lastbutton;
    static s16 stickX, stickY;      
    
    (void)osRecvMesg(&controllerMsgQ, NULL, OS_MESG_BLOCK);
    osContGetReadData(controllerdata);

    button = controllerdata[thecontroller].button;
    stickX = controllerdata[thecontroller].stick_x;
    stickY = controllerdata[thecontroller].stick_y;

    //PRINTF("%04d %04d ", stickX, stickY);
    if (button & CONT_UP)
	PRINTF("UP ");

	    
    if (button & CONT_DOWN)
	PRINTF("DOWN ");

    if (button & CONT_RIGHT)
	PRINTF("RIGHT ");
	    
    if (button & CONT_LEFT)
	PRINTF("LEFT ");


    if ((button & CONT_A) && !(lastbutton & CONT_A))
	PRINTF("A ");

    if ((button & CONT_B) && !(lastbutton & CONT_B))
	PRINTF("B ");

    if ((button & CONT_C) && !(lastbutton & CONT_C))
	PRINTF("C ");

    if ((button & CONT_F) && !(lastbutton & CONT_F))
	PRINTF("F ");

    if ((button & CONT_D) /* && !(lastbutton & CONT_D) */)
	PRINTF("D ");

    if ((button & CONT_E) /* && !(lastbutton & CONT_E) */)
	PRINTF("E ");


    if ((button & CONT_L) && !(lastbutton & CONT_L))
	PRINTF("L ");

    if ((button & CONT_R) && !(lastbutton & CONT_R))
	PRINTF("R ");

    if ((button & CONT_G) && !(lastbutton & CONT_G))
	PRINTF("G ");

    if ((button & CONT_START) && !(lastbutton & CONT_START))
	PRINTF("START ");
  
    PRINTF("\n");
    lastbutton = button;
}

static void 
mainproc(char *argv)		
{
    int thecontroller;

    osCreateMesgQueue(&retraceMessageQ, &retraceMessageBuf, 1);
    osViSetEvent(&retraceMessageQ, dummyMessage, 1);

    PRINTF("\n=> mainproc...\n");
    thecontroller = initControllers();
    PRINTF("thecontroller %d\n", thecontroller);

    for(;;)  {
	(void)osRecvMesg(&retraceMessageQ, NULL, OS_MESG_BLOCK);
	osContStartReadData(&controllerMsgQ);
	ReadController(thecontroller);
    }
}