--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/haptic/nds/SDL_syshaptic.c	Sat Sep 06 00:10:16 2008 +0000
@@ -0,0 +1,334 @@
+/*
+    SDL - Simple DirectMedia Layer
+    Copyright (C) 2008 Edgar Simo
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Lesser General Public
+    License as published by the Free Software Foundation; either
+    version 2.1 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public
+    License along with this library; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+
+    Sam Lantinga
+    slouken@libsdl.org
+*/
+#include "SDL_config.h"
+
+#ifdef SDL_HAPTIC_NDS
+
+#include "SDL_haptic.h"
+#include "../SDL_syshaptic.h"
+#include "SDL_joystick.h"
+#include <nds/arm9/rumble.h>
+#include <nds/memory.h>
+
+#define MAX_HAPTICS  1
+/* right now only the ezf3in1 (and maybe official rumble pak) are supported
+   and there can only be one of those in at a time (in GBA slot.) */
+
+SDL_Haptic *nds_haptic = NULL;
+
+typedef struct
+{
+    enum
+    { NONE, OFFICIAL, EZF3IN1 } type;
+    int pos;
+} NDS_HapticData;
+
+
+
+void NDS_EZF_OpenNorWrite()
+{
+    GBA_BUS[0x0FF0000] = 0xD200;
+    GBA_BUS[0x0000000] = 0x1500;
+    GBA_BUS[0x0010000] = 0xD200;
+    GBA_BUS[0x0020000] = 0x1500;
+    GBA_BUS[0x0E20000] = 0x1500;
+    GBA_BUS[0x0FE0000] = 0x1500;
+}
+
+
+void NDS_EZF_CloseNorWrite()
+{
+    GBA_BUS[0x0FF0000] = 0xD200;
+    GBA_BUS[0x0000000] = 0x1500;
+    GBA_BUS[0x0010000] = 0xD200;
+    GBA_BUS[0x0020000] = 0x1500;
+    GBA_BUS[0x0E20000] = 0xD200;
+    GBA_BUS[0x0FE0000] = 0x1500;
+}
+
+void NDS_EZF_ChipReset()
+{
+    GBA_BUS[0x0000] = 0x00F0 ;
+    GBA_BUS[0x1000] = 0x00F0 ;
+}
+uint32 NDS_EZF_IsPresent()
+{
+    vuint16 id1,id2;
+
+    NDS_EZF_OpenNorWrite();
+
+    GBA_BUS[0x0555] = 0x00AA;
+    GBA_BUS[0x02AA] = 0x0055;
+    GBA_BUS[0x0555] = 0x0090;
+    GBA_BUS[0x1555] = 0x00AA;
+    GBA_BUS[0x12AA] = 0x0055;
+    GBA_BUS[0x1555] = 0x0090;
+
+    id1 = GBA_BUS[0x0001];
+    id2 = GBA_BUS[0x1001];
+
+    if((id1!=0x227E)|| (id2!=0x227E)) {
+        NDS_EZF_CloseNorWrite();
+        return 0;
+    }
+
+    id1 = GBA_BUS[0x000E];
+    id2 = GBA_BUS[0x100E];
+
+    NDS_EZF_CloseNorWrite();
+
+    if(id1==0x2218 && id2==0x2218) {
+        return 1;
+    }
+
+    return 0;
+}
+
+void NDS_EZF_SetShake(u8 pos)
+{
+    u16 data = ((pos%3)|0x00F0);
+
+    GBA_BUS[0x0FF0000] = 0xD200;
+    GBA_BUS[0x0000000] = 0x1500;
+    GBA_BUS[0x0010000] = 0xD200;
+    GBA_BUS[0x0020000] = 0x1500;
+    GBA_BUS[0x0F10000] = data;
+    GBA_BUS[0x0FE0000] = 0x1500;
+
+    GBA_BUS[0] = 0x0000; /* write any value for vibration. */
+    GBA_BUS[0] = 0x0002;
+}
+
+static int
+SDL_SYS_LogicError(void)
+{
+    SDL_SetError("Logic error: No haptic devices available.");
+    return 0;
+}
+
+
+int
+SDL_SYS_HapticInit(void)
+{
+    int ret = 0;
+    if(isRumbleInserted()) {
+        /* official rumble pak is present. */
+        ret = 1;
+        printf("debug: haptic present: nintendo\n");
+    } else if(NDS_EZF_IsPresent()) {
+        /* ezflash 3-in-1 pak is present. */
+        ret = 1;
+        printf("debug: haptic present: ezf3in1\n");
+        NDS_EZF_ChipReset();
+    } else {
+        printf("debug: no haptic found\n");
+    }
+
+    return ret;
+}
+
+
+const char *
+SDL_SYS_HapticName(int index)
+{
+    if(nds_haptic) {
+        switch(nds_haptic->hwdata->type) {
+            case OFFICIAL: return "Nintendo DS Rumble Pak";
+            case EZF3IN1: return "EZFlash 3-in-1 Rumble";
+            default: return NULL;
+        }
+    }
+    return NULL;
+}
+
+
+int
+SDL_SYS_HapticOpen(SDL_Haptic * haptic)
+{
+    if(!haptic) {
+        return -1;
+    }
+
+    haptic->hwdata = SDL_malloc(sizeof(NDS_HapticData));
+    if(!haptic->hwdata) {
+        SDL_OutOfMemory();
+        return -1;
+    }
+    nds_haptic = haptic;
+
+    haptic->supported = SDL_HAPTIC_CONSTANT;
+
+    /* determine what is here, if anything */
+    haptic->hwdata->type = NONE;
+    if(isRumbleInserted()) {
+        /* official rumble pak is present. */
+        haptic->hwdata->type = OFFICIAL;
+    } else if(NDS_EZF_IsPresent()) {
+        /* ezflash 3-in-1 pak is present. */
+        haptic->hwdata->type = EZF3IN1;
+        NDS_EZF_ChipReset();
+    } else {
+        /* no haptic present */
+        SDL_SYS_LogicError();
+        return -1;
+    }
+
+    return 0;
+}
+
+
+int
+SDL_SYS_HapticMouse(void)
+{
+    return -1;
+}
+
+
+int
+SDL_SYS_JoystickIsHaptic(SDL_Joystick * joystick)
+{
+    return 0;
+}
+
+
+int
+SDL_SYS_HapticOpenFromJoystick(SDL_Haptic * haptic, SDL_Joystick * joystick)
+{
+    /*SDL_SYS_LogicError();*/
+    return -1;
+}
+
+
+int
+SDL_SYS_JoystickSameHaptic(SDL_Haptic * haptic, SDL_Joystick * joystick)
+{
+    return 0;
+}
+
+
+void
+SDL_SYS_HapticClose(SDL_Haptic * haptic)
+{
+    return;
+}
+
+
+void
+SDL_SYS_HapticQuit(void)
+{
+    return;
+}
+
+
+int
+SDL_SYS_HapticNewEffect(SDL_Haptic * haptic,
+                        struct haptic_effect *effect, SDL_HapticEffect * base)
+{
+    SDL_SYS_LogicError();
+    return -1;
+}
+
+
+int
+SDL_SYS_HapticUpdateEffect(SDL_Haptic * haptic,
+                           struct haptic_effect *effect,
+                           SDL_HapticEffect * data)
+{
+    SDL_SYS_LogicError();
+    return -1;
+}
+
+
+int
+SDL_SYS_HapticRunEffect(SDL_Haptic * haptic, struct haptic_effect *effect,
+                        Uint32 iterations)
+{
+    SDL_SYS_LogicError();
+    return -1;
+}
+
+
+int
+SDL_SYS_HapticStopEffect(SDL_Haptic * haptic, struct haptic_effect *effect)
+{
+    SDL_SYS_LogicError();
+    return -1;
+}
+
+
+void
+SDL_SYS_HapticDestroyEffect(SDL_Haptic * haptic, struct haptic_effect *effect)
+{
+    SDL_SYS_LogicError();
+    return;
+}
+
+
+int
+SDL_SYS_HapticGetEffectStatus(SDL_Haptic * haptic,
+                              struct haptic_effect *effect)
+{
+    SDL_SYS_LogicError();
+    return -1;
+}
+
+
+int
+SDL_SYS_HapticSetGain(SDL_Haptic * haptic, int gain)
+{
+    SDL_SYS_LogicError();
+    return -1;
+}
+
+
+int
+SDL_SYS_HapticSetAutocenter(SDL_Haptic * haptic, int autocenter)
+{
+    SDL_SYS_LogicError();
+    return -1;
+}
+
+int
+SDL_SYS_HapticPause(SDL_Haptic * haptic)
+{
+    SDL_SYS_LogicError();
+    return -1;
+}
+
+int
+SDL_SYS_HapticUnpause(SDL_Haptic * haptic)
+{
+    SDL_SYS_LogicError();
+    return -1;
+}
+
+int
+SDL_SYS_HapticStopAll(SDL_Haptic * haptic)
+{
+    SDL_SYS_LogicError();
+    return -1;
+}
+
+
+
+#endif /* SDL_HAPTIC_NDS */
+/* vi: set ts=4 sw=4 expandtab: */