fixed: broken fs0, sram saves

[fceu.git] / drivers / gp2x / gp2x.c

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "../../driver.h"
#include "../common/config.h"
#include "../common/args.h"
#include "gp2x.h"
#include "gp2x-video.h"
#ifdef NETWORK
#include "unix-netplay.h"
#endif

#include "minimal.h"
#include "cpuctrl.h"
#include "squidgehack.h"

int CLImain(int argc, char *argv[]);

//#define SOUND_RATE 44100
#define SOUND_RATE 22050

DSETTINGS Settings;
CFGSTRUCT DriverConfig[]={
        ACA(Settings.KeyBinds),
	ACA(Settings.JoyBinds),
        AC(Settings.turbo_rate_add),
        AC(Settings.sound_rate),
	AC(Settings.showfps),
	AC(Settings.scaling),
	AC(Settings.frameskip),
	AC(Settings.sstate_confirm),
	AC(Settings.region_force),
	AC(Settings.cpuclock),
	AC(Settings.mmuhack),
	AC(Settings.ramtimings),
	AC(Settings.gamma),
	// TODO
        ENDCFGSTRUCT
};


char *DriverUsage=
"-joyx   y       Use joystick y as virtual joystick x.\n\
-sound x        Sound.\n\
                 0 = Disabled.\n\
                 Otherwise, x = playback rate.\n\
-showfps x      Display fps counter if x is nonzero\n\
-mmuhack x      Enable squidge's MMU hack if x is nonzero (GP2X).\n\
-ramtimings x   Enable RAM overclocking if x is nonzero (GP2X).\n\
"
#ifdef NETWORK
"-connect s      Connect to server 's' for TCP/IP network play.\n\
-server         Be a host/server for TCP/IP network play.\n\
-netport x      Use TCP/IP port x for network play."
#endif
;

#ifdef NETWORK
static int docheckie[2]={0,0};
#endif
ARGPSTRUCT DriverArgs[]={
         {"-sound",0,&Settings.sound_rate,0},
         {"-showfps",0,&Settings.showfps,0},
         {"-mmuhack",0,&Settings.mmuhack,0},
         {"-ramtimings",0,&Settings.ramtimings,0},
         {"-menu",0,&ext_menu,0x4001},
         {"-menustate",0,&ext_state,0x4001},
	 #ifdef NETWORK
         {"-connect",&docheckie[0],&netplayhost,0x4001},
         {"-server",&docheckie[1],0,0},
         {"-netport",0,&Port,0},
	 #endif
         {0,0,0,0}
};



void GetBaseDirectory(char *BaseDirectory)
{
 strcpy(BaseDirectory, "fceultra");
}

static void SetDefaults(void)
{
 memset(&Settings,0,sizeof(Settings));
 Settings.cpuclock = 150;
 Settings.frameskip = -1; // auto
 Settings.mmuhack = 1;
 Settings.sound_rate = SOUND_RATE;
 Settings.turbo_rate_add = (8*2 << 24) / 60 + 1; // 8Hz turbofire
 Settings.gamma = 100;
 // default controls, RLDU SEBA
 Settings.KeyBinds[ 0] = 0x010; // GP2X_UP
 Settings.KeyBinds[ 4] = 0x020; // GP2X_DOWN
 Settings.KeyBinds[ 2] = 0x040; // GP2X_LEFT
 Settings.KeyBinds[ 6] = 0x080; // GP2X_RIGHT
 Settings.KeyBinds[13] = 0x001; // GP2X_B
 Settings.KeyBinds[14] = 0x002; // GP2X_X
 Settings.KeyBinds[12] = 0x100; // GP2X_A
 Settings.KeyBinds[15] = 0x200; // GP2X_Y
 Settings.KeyBinds[ 8] = 0x008; // GP2X_START
 Settings.KeyBinds[ 9] = 0x004; // GP2X_SELECT
}

void DoDriverArgs(void)
{
	#ifdef NETWORK
        if(docheckie[0])
         netplay=2;
        else if(docheckie[1])
         netplay=1;

        if(netplay)
         FCEUI_SetNetworkPlay(netplay);
	#endif
}


char **g_argv;
int mmuhack_status = 0;


// TODO: cleanup
int main(int argc, char *argv[])
{
	int ret;
	g_argv = argv;

        puts("Starting GPFCE - Port version " GP2X_PORT_VERSION " (" __DATE__ ")");
        puts("Based on FCE Ultra "VERSION_STRING"...");
        puts("Ported by Zheng Zhu");
        puts("Additional optimization/misc work by notaz\n");

    	gp2x_init();
	cpuctrl_init();

        SetDefaults();

        ret = CLImain(argc,argv);

        // unscale the screen, in case this is bad.
        gp2x_video_RGB_setscaling(0, 320, 240);

	if (mmuhack_status > 0)
		mmuunhack();

	set_gamma(100);
	cpuctrl_deinit();
        gp2x_deinit();

        return(ret?0:-1);
}


/* optional GP2X stuff to be done after config is loaded */
void gp2x_opt_setup(void)
{
	if (Settings.mmuhack) {
		int ret = mmuhack();
		printf("squidge hack code finished and returned %s\n", ret > 0 ? "ok" : "fail");
		fflush(stdout);
		mmuhack_status = ret;
	}
	if (Settings.ramtimings) {
		printf("setting RAM timings.. "); fflush(stdout);
		// craigix: --trc 6 --tras 4 --twr 1 --tmrd 1 --trfc 1 --trp 2 --trcd 2
		set_RAM_Timings(6, 4, 1, 1, 1, 2, 2);
		printf("done.\n"); fflush(stdout);
	}
}

void gp2x_cpuclock_gamma_update(void)
{
	static int prev_cpuclock = 200, prev_gamma = 100;
	if (Settings.cpuclock != 0 && Settings.cpuclock != prev_cpuclock)
	{
		set_FCLK(Settings.cpuclock);
		prev_cpuclock = Settings.cpuclock;
	}

	if (Settings.gamma != 0 && Settings.gamma != prev_gamma)
	{
		set_gamma(Settings.gamma);
		prev_gamma = Settings.gamma;
	}
}