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-rw-r--r--arm7/.cvsignore2
-rw-r--r--arm7/Makefile132
-rw-r--r--arm7/source/main.c178
3 files changed, 312 insertions, 0 deletions
diff --git a/arm7/.cvsignore b/arm7/.cvsignore
new file mode 100644
index 0000000..970db45
--- /dev/null
+++ b/arm7/.cvsignore
@@ -0,0 +1,2 @@
+build
+ds81.arm7.elf \ No newline at end of file
diff --git a/arm7/Makefile b/arm7/Makefile
new file mode 100644
index 0000000..c4ede78
--- /dev/null
+++ b/arm7/Makefile
@@ -0,0 +1,132 @@
+#---------------------------------------------------------------------------------
+.SUFFIXES:
+#---------------------------------------------------------------------------------
+ifeq ($(strip $(DEVKITARM)),)
+$(error "Please set DEVKITARM in your environment. export DEVKITARM=<path to>devkitARM")
+endif
+
+include $(DEVKITARM)/ds_rules
+
+#---------------------------------------------------------------------------------
+# BUILD is the directory where object files & intermediate files will be placed
+# SOURCES is a list of directories containing source code
+# INCLUDES is a list of directories containing extra header files
+# DATA is a list of directories containing binary files
+# all directories are relative to this makefile
+#---------------------------------------------------------------------------------
+BUILD := build
+SOURCES := source
+INCLUDES := include build
+DATA :=
+
+#---------------------------------------------------------------------------------
+# options for code generation
+#---------------------------------------------------------------------------------
+ARCH := -mthumb-interwork
+
+CFLAGS := -g -Wall -O2\
+ -mcpu=arm7tdmi -mtune=arm7tdmi -fomit-frame-pointer\
+ -ffast-math \
+ $(ARCH)
+
+CFLAGS += $(INCLUDE) -DARM7
+CXXFLAGS := $(CFLAGS)
+
+
+ASFLAGS := -g $(ARCH)
+LDFLAGS = -specs=ds_arm7.specs -g $(ARCH) -mno-fpu -Wl,-Map,$(notdir $*).map
+
+LIBS := -lnds7 -ldswifi7
+
+#---------------------------------------------------------------------------------
+# list of directories containing libraries, this must be the top level containing
+# include and lib
+#---------------------------------------------------------------------------------
+LIBDIRS := $(LIBNDS)
+
+
+#---------------------------------------------------------------------------------
+# no real need to edit anything past this point unless you need to add additional
+# rules for different file extensions
+#---------------------------------------------------------------------------------
+ifneq ($(BUILD),$(notdir $(CURDIR)))
+#---------------------------------------------------------------------------------
+
+export ARM7BIN := $(TOPDIR)/$(TARGET).arm7
+export ARM7ELF := $(CURDIR)/$(TARGET).arm7.elf
+export DEPSDIR := $(CURDIR)/$(BUILD)
+
+export VPATH := $(foreach dir,$(SOURCES),$(CURDIR)/$(dir))
+
+CFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.c)))
+CPPFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.cpp)))
+SFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.s)))
+BINFILES := $(foreach dir,$(DATA),$(notdir $(wildcard $(dir)/*.*)))
+
+export OFILES := $(addsuffix .o,$(BINFILES)) \
+ $(CPPFILES:.cpp=.o) $(CFILES:.c=.o) $(SFILES:.s=.o)
+
+export INCLUDE := $(foreach dir,$(INCLUDES),-I$(CURDIR)/$(dir)) \
+ $(foreach dir,$(LIBDIRS),-I$(dir)/include) \
+ -I$(CURDIR)/$(BUILD)
+
+export LIBPATHS := $(foreach dir,$(LIBDIRS),-L$(dir)/lib)
+
+#---------------------------------------------------------------------------------
+# use CXX for linking C++ projects, CC for standard C
+#---------------------------------------------------------------------------------
+ifeq ($(strip $(CPPFILES)),)
+#---------------------------------------------------------------------------------
+ export LD := $(CC)
+#---------------------------------------------------------------------------------
+else
+#---------------------------------------------------------------------------------
+ export LD := $(CXX)
+#---------------------------------------------------------------------------------
+endif
+#---------------------------------------------------------------------------------
+
+.PHONY: $(BUILD) clean
+
+#---------------------------------------------------------------------------------
+$(BUILD):
+ @[ -d $@ ] || mkdir -p $@
+ @make --no-print-directory -C $(BUILD) -f $(CURDIR)/Makefile
+
+#---------------------------------------------------------------------------------
+clean:
+ @echo clean ...
+ @rm -fr $(BUILD) *.elf
+
+
+#---------------------------------------------------------------------------------
+else
+
+DEPENDS := $(OFILES:.o=.d)
+
+#---------------------------------------------------------------------------------
+# main targets
+#---------------------------------------------------------------------------------
+$(ARM7BIN) : $(ARM7ELF)
+ @$(OBJCOPY) -O binary $< $@
+ @echo built ... $(notdir $@)
+
+
+$(ARM7ELF) : $(OFILES)
+ @echo linking $(notdir $@)
+ @$(LD) $(LDFLAGS) $(OFILES) $(LIBPATHS) $(LIBS) -o $@
+
+
+#---------------------------------------------------------------------------------
+# you need a rule like this for each extension you use as binary data
+#---------------------------------------------------------------------------------
+%.bin.o : %.bin
+#---------------------------------------------------------------------------------
+ @echo $(notdir $<)
+ @$(bin2o)
+
+-include $(DEPENDS)
+
+#---------------------------------------------------------------------------------------
+endif
+#---------------------------------------------------------------------------------------
diff --git a/arm7/source/main.c b/arm7/source/main.c
new file mode 100644
index 0000000..34aef8f
--- /dev/null
+++ b/arm7/source/main.c
@@ -0,0 +1,178 @@
+/*---------------------------------------------------------------------------------
+ $Id$
+
+ Simple ARM7 stub (sends RTC, TSC, and X/Y data to the ARM 9)
+
+ $Log$
+ Revision 1.2 2005/09/07 20:06:06 wntrmute
+ updated for latest libnds changes
+
+ Revision 1.8 2005/08/03 05:13:16 wntrmute
+ corrected sound code
+
+
+---------------------------------------------------------------------------------*/
+#include <nds.h>
+
+#include <nds/bios.h>
+#include <nds/arm7/touch.h>
+#include <nds/arm7/clock.h>
+
+#include <dswifi7.h>
+
+
+//---------------------------------------------------------------------------------
+void startSound(int sampleRate, const void* data, u32 bytes, u8 channel, u8 vol, u8 pan, u8 format) {
+//---------------------------------------------------------------------------------
+ SCHANNEL_TIMER(channel) = SOUND_FREQ(sampleRate);
+ SCHANNEL_SOURCE(channel) = (u32)data;
+ SCHANNEL_LENGTH(channel) = bytes >> 2 ;
+ SCHANNEL_CR(channel) = SCHANNEL_ENABLE | SOUND_ONE_SHOT | SOUND_VOL(vol) | SOUND_PAN(pan) | (format==1?SOUND_8BIT:SOUND_16BIT);
+}
+
+
+//---------------------------------------------------------------------------------
+s32 getFreeSoundChannel() {
+//---------------------------------------------------------------------------------
+ int i;
+ for (i=0; i<16; i++) {
+ if ( (SCHANNEL_CR(i) & SCHANNEL_ENABLE) == 0 ) return i;
+ }
+ return -1;
+}
+
+//---------------------------------------------------------------------------------
+void VblankHandler(void) {
+//---------------------------------------------------------------------------------
+ static int heartbeat = 0;
+
+ uint16 but=0, x=0, y=0, xpx=0, ypx=0, z1=0, z2=0, batt=0, aux=0;
+ int t1=0, t2=0;
+ uint32 temp=0;
+ uint8 ct[sizeof(IPC->curtime)];
+ u32 i;
+
+ // Update the heartbeat
+ heartbeat++;
+
+ // Read the touch screen
+
+ but = REG_KEYXY;
+
+ if (!(but & (1<<6))) {
+
+ touchPosition tempPos = touchReadXY();
+
+ x = tempPos.x;
+ y = tempPos.y;
+ xpx = tempPos.px;
+ ypx = tempPos.py;
+ }
+
+ z1 = touchRead(TSC_MEASURE_Z1);
+ z2 = touchRead(TSC_MEASURE_Z2);
+
+
+ batt = touchRead(TSC_MEASURE_BATTERY);
+ aux = touchRead(TSC_MEASURE_AUX);
+
+ // Read the time
+ rtcGetTime((uint8 *)ct);
+ BCDToInteger((uint8 *)&(ct[1]), 7);
+
+ // Read the temperature
+ temp = touchReadTemperature(&t1, &t2);
+
+ // Update the IPC struct
+ IPC->heartbeat = heartbeat;
+ IPC->buttons = but;
+ IPC->touchX = x;
+ IPC->touchY = y;
+ IPC->touchXpx = xpx;
+ IPC->touchYpx = ypx;
+ IPC->touchZ1 = z1;
+ IPC->touchZ2 = z2;
+ IPC->battery = batt;
+ IPC->aux = aux;
+
+ for(i=0; i<sizeof(ct); i++) {
+ IPC->curtime[i] = ct[i];
+ }
+
+ IPC->temperature = temp;
+ IPC->tdiode1 = t1;
+ IPC->tdiode2 = t2;
+
+
+ //sound code :)
+ TransferSound *snd = IPC->soundData;
+ IPC->soundData = 0;
+
+ if (0 != snd) {
+
+ for (i=0; i<snd->count; i++) {
+ s32 chan = getFreeSoundChannel();
+
+ if (chan >= 0) {
+ startSound(snd->data[i].rate, snd->data[i].data, snd->data[i].len, chan, snd->data[i].vol, snd->data[i].pan, snd->data[i].format);
+ }
+ }
+ }
+
+ Wifi_Update(); // update wireless in vblank
+
+}
+
+// callback to allow wifi library to notify arm9
+void arm7_synctoarm9() { // send fifo message
+ REG_IPC_FIFO_TX = 0x87654321;
+}
+// interrupt handler to allow incoming notifications from arm9
+void arm7_fifo() { // check incoming fifo messages
+ u32 msg = REG_IPC_FIFO_RX;
+ if(msg==0x87654321) Wifi_Sync();
+}
+
+//---------------------------------------------------------------------------------
+int main(int argc, char ** argv) {
+//---------------------------------------------------------------------------------
+ REG_IPC_FIFO_CR = IPC_FIFO_ENABLE | IPC_FIFO_SEND_CLEAR; // enable & prepare fifo asap
+ // Reset the clock if needed
+ rtcReset();
+
+ //enable sound
+ powerON(POWER_SOUND);
+ SOUND_CR = SOUND_ENABLE | SOUND_VOL(0x7F);
+ IPC->soundData = 0;
+
+ irqInit();
+ irqSet(IRQ_VBLANK, VblankHandler);
+ irqEnable(IRQ_VBLANK);
+
+ irqSet(IRQ_WIFI, Wifi_Interrupt); // set up wifi interrupt
+ irqEnable(IRQ_WIFI);
+
+{ // sync with arm9 and init wifi
+ u32 fifo_temp;
+
+ while(1) { // wait for magic number
+ while(REG_IPC_FIFO_CR&IPC_FIFO_RECV_EMPTY) swiWaitForVBlank();
+ fifo_temp=REG_IPC_FIFO_RX;
+ if(fifo_temp==0x12345678) break;
+ }
+ while(REG_IPC_FIFO_CR&IPC_FIFO_RECV_EMPTY) swiWaitForVBlank();
+ fifo_temp=REG_IPC_FIFO_RX; // give next value to wifi_init
+ Wifi_Init(fifo_temp);
+
+ irqSet(IRQ_FIFO_NOT_EMPTY,arm7_fifo); // set up fifo irq
+ irqEnable(IRQ_FIFO_NOT_EMPTY);
+ REG_IPC_FIFO_CR = IPC_FIFO_ENABLE | IPC_FIFO_RECV_IRQ;
+
+ Wifi_SetSyncHandler(arm7_synctoarm9); // allow wifi lib to notify arm9
+ } // arm7 wifi init complete
+
+ // Keep the ARM7 out of main RAM
+ while (1) swiWaitForVBlank();
+}
+
+
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