drivers/gp2x/gp2x.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <string.h>
   4
   5 #include "../../driver.h"
   6 #include "../common/config.h"
   7 #include "../common/args.h"
   8 #include "../common/platform.h"
   9 #include "../common/settings.h"
  10 #include "../common/revision.h"
  11 #include "gp2x-video.h"
  12 #ifdef NETWORK
  13 #include "unix-netplay.h"
  14 #endif
  15
  16 #include "minimal.h"
  17 #include "cpuctrl.h"
  18 #include "squidgehack.h"
  19
  20 extern uint8 PAL;
  21
  22 char *DriverUsage=
  23 "-mmuhack x      Enable squidge's MMU hack if x is nonzero (GP2X).\n\
  24 -ramtimings x   Enable RAM overclocking if x is nonzero (GP2X).\n\
  25 ";
  26
  27 ARGPSTRUCT DriverArgs[]={
  28          {"-mmuhack",0,&Settings.mmuhack,0},
  29          {"-ramtimings",0,&Settings.ramtimings,0},
  30          {"-menu",0,&ext_menu,0x4001},
  31          {"-menustate",0,&ext_state,0x4001},
  32          {0,0,0,0}
  33 };
  34
  35 void GetBaseDirectory(char *BaseDirectory)
  36 {
  37  strcpy(BaseDirectory, "fceultra");
  38 }
  39
  40 static void SetDefaults(void)
  41 {
  42  memset(&Settings,0,sizeof(Settings));
  43  Settings.cpuclock = 150;
  44  Settings.frameskip = -1; // auto
  45  Settings.mmuhack = 1;
  46  Settings.sound_rate = 22050;
  47  Settings.turbo_rate_add = (8*2 << 24) / 60 + 1; // 8Hz turbofire
  48  Settings.gamma = 100;
  49  Settings.sstate_confirm = 1;
  50  // default controls, RLDU SEBA
  51  Settings.KeyBinds[ 0] = 0x010; // GP2X_UP
  52  Settings.KeyBinds[ 4] = 0x020; // GP2X_DOWN
  53  Settings.KeyBinds[ 2] = 0x040; // GP2X_LEFT
  54  Settings.KeyBinds[ 6] = 0x080; // GP2X_RIGHT
  55  Settings.KeyBinds[13] = 0x001; // GP2X_B
  56  Settings.KeyBinds[14] = 0x002; // GP2X_X
  57  Settings.KeyBinds[12] = 0x100; // GP2X_A
  58  Settings.KeyBinds[15] = 0x200; // GP2X_Y
  59  Settings.KeyBinds[ 8] = 0x008; // GP2X_START
  60  Settings.KeyBinds[ 9] = 0x004; // GP2X_SELECT
  61  Settings.KeyBinds[10] = 0x80000000; // GP2X_L
  62  Settings.KeyBinds[11] = 0x40000000; // GP2X_R
  63  Settings.KeyBinds[27] = 0xc0000000; // GP2X_PUSH
  64 }
  65
  66 void DoDriverArgs(void)
  67 {
  68 }
  69
  70
  71 int mmuhack_status = 0;
  72
  73
  74 void platform_init(void)
  75 {
  76         printf("Starting GPFCE " REV " (" __DATE__ ")\n");
  77         puts("Based on FCE Ultra "VERSION_STRING" and 0.98.1x versions");
  78         puts("Original port by Zheng Zhu");
  79         puts("Menu/optimization/misc work by notaz\n");
  80
  81         gp2x_init();
  82         cpuctrl_init();
  83
  84         SetDefaults();
  85 }
  86
  87 void platform_finish(void)
  88 {
  89         // unscale the screen, in case it is bad.
  90         gp2x_video_RGB_setscaling(320, 240);
  91
  92         if (mmuhack_status > 0)
  93                 mmuunhack();
  94
  95         set_gamma(100);
  96         cpuctrl_deinit();
  97         gp2x_deinit();
  98
  99         return(ret?0:-1);
 100 }
 101
 102 void platform_set_volume(int val) // 0-100
 103 {
 104         platform_set_volume(val, val);
 105 }
 106
 107 /* optional GP2X stuff to be done after config is loaded */
 108 void platform_late_init(void)
 109 {
 110         if (Settings.mmuhack) {
 111                 int ret = mmuhack();
 112                 printf("squidge hack code finished and returned %s\n", ret > 0 ? "ok" : "fail");
 113                 fflush(stdout);
 114                 mmuhack_status = ret;
 115         }
 116         if (Settings.ramtimings) {
 117                 printf("setting RAM timings.. "); fflush(stdout);
 118                 // craigix: --trc 6 --tras 4 --twr 1 --tmrd 1 --trfc 1 --trp 2 --trcd 2
 119                 set_RAM_Timings(6, 4, 1, 1, 1, 2, 2);
 120                 printf("done.\n"); fflush(stdout);
 121         }
 122 }
 123
 124 void platform_apply_config(void)
 125 {
 126         static int prev_cpuclock = 200, prev_gamma = 100, prev_vsync = 0, prev_pal = 0;
 127         if (Settings.cpuclock != 0 && Settings.cpuclock != prev_cpuclock)
 128         {
 129                 set_FCLK(Settings.cpuclock);
 130                 prev_cpuclock = Settings.cpuclock;
 131         }
 132
 133         if (Settings.gamma != 0 && Settings.gamma != prev_gamma)
 134         {
 135                 set_gamma(Settings.gamma);
 136                 prev_gamma = Settings.gamma;
 137         }
 138
 139         if (Settings.perfect_vsync != prev_vsync || (Settings.perfect_vsync && prev_pal != PAL))
 140         {
 141                 if (Settings.perfect_vsync)
 142                 {
 143                         set_LCD_custom_rate(PAL ? LCDR_100_02 : LCDR_120_20);
 144                         prev_pal = PAL;
 145                 }
 146                 else
 147                 {
 148                         unset_LCD_custom_rate();
 149                 }
 150                 prev_vsync = Settings.perfect_vsync;
 151         }
 152
 153         gp2x_video_changemode(Settings.scaling == 3 ? 15 : 8);
 154         switch (Settings.scaling & 3) {
 155                 case 0: gp2x_video_set_offs(0);  gp2x_video_RGB_setscaling(320, 240); break;
 156                 case 1: gp2x_video_set_offs(32); gp2x_video_RGB_setscaling(256, 240); break;
 157                 case 2: gp2x_video_set_offs(32+srendline*320); gp2x_video_RGB_setscaling(256, erendline-srendline); break;
 158                 case 3: gp2x_video_set_offs(32); gp2x_video_RGB_setscaling(320, 240); break;
 159         }
 160 }
 161
 162