Initial commit

channel/channelapp/stub/usb.c

@@ -0,0 +1,221 @@
+/*---------------------------------------------------------------------------------------------
+ * USB Gecko Development Kit - http://www.usbgecko.com
+ * --------------------------------------------------------------------------------------------
+ * 
+ *
+ * usb.c - V1.2 functions for the USB Gecko adapter (www.usbgecko.com).
+ * Now works for Wii Mode - use WIIMODE define in usb.h to set
+ * Copyright (c) 2008 - Nuke - <wiinuke@gmail.com>
+ * 
+ *---------------------------------------------------------------------------------------------*/
+
+
+#include <gctypes.h>	// If not using libogc need types
+#include "usb.h"
+
+#ifdef DEBUG_STUB
+
+/*---------------------------------------------------------------------------------------------*
+    Name:           usb_sendbyte
+    Description:	Send byte to Gamecube/Wii over EXI memory card port
+*----------------------------------------------------------------------------------------------*/
+
+static int __usb_sendbyte (char sendbyte)
+{
+	s32 i;
+	
+	exi_chan1sr = 0x000000D0;						
+	exi_chan1data = 0xB0000000 | (sendbyte<<20);	
+	exi_chan1cr = 0x19;								
+	while((exi_chan1cr)&1);							
+	i = exi_chan1data;								
+	exi_chan1sr = 0;  
+	if (i&0x04000000){
+		return 1;									
+	}   
+    return 0;										
+}
+
+/*---------------------------------------------------------------------------------------------*
+    Name:           usb_receivebyte
+    Description:	Receive byte from Gamecube/Wii over EXI memory card port
+*----------------------------------------------------------------------------------------------*/
+
+static int __usb_receivebyte (char *receivebyte)
+{
+	s32 i = 0;
+
+	exi_chan1sr = 0x000000D0;			
+	exi_chan1data = 0xA0000000;		
+	exi_chan1cr = 0x19;					
+	while((exi_chan1cr)&1);				
+	i = exi_chan1data;					
+	exi_chan1sr = 0;  
+	if (i&0x08000000){
+	    *receivebyte=(i>>16)&0xff;		
+	    return 1;						
+	} 
+	return 0;							
+}
+
+/*---------------------------------------------------------------------------------------------*
+    Name:           usb_checksendstatus
+    Description:	Chesk the FIFO is ready to send
+*----------------------------------------------------------------------------------------------*/
+
+static int __usb_checksendstatus()
+{
+	s32 i = 0;
+
+	exi_chan1sr = 0x000000D0;					
+	exi_chan1data = 0xC0000000;						
+	exi_chan1cr = 0x19;								
+	while((exi_chan1cr)&1);							
+	i = exi_chan1data;									
+	exi_chan1sr = 0x0;  
+	if (i&0x04000000){
+		return 1;									
+	}   
+    return 0;										
+}
+
+/*---------------------------------------------------------------------------------------------*
+    Name:           usb_checkreceivestatus
+    Description:	Check the FIFO is ready to receive
+*----------------------------------------------------------------------------------------------*/
+
+static int __usb_checkreceivestatus()
+{
+	s32 i = 0;
+	exi_chan1sr = 0x000000D0;						
+	exi_chan1data = 0xD0000000;						
+	exi_chan1cr = 0x19;								
+	while((exi_chan1cr)&1);							   	
+	i = exi_chan1data;								
+	exi_chan1sr = 0x0;  
+	if (i&0x04000000){
+		return 1;								
+	}   
+    return 0;										
+}
+
+/*---------------------------------------------------------------------------------------------*
+    Name:           usb_sendbuffer
+    Description:	Simple buffer send routine
+*----------------------------------------------------------------------------------------------*/
+
+void usb_sendbuffer (const void *buffer, int size)
+{
+	char *sendbyte = (char*) buffer;
+	s32 bytesleft = size;					
+	s32 returnvalue;
+
+	while (bytesleft  > 0)
+	{
+		returnvalue = __usb_sendbyte(*sendbyte);
+		if(returnvalue) {							
+			sendbyte++;							
+			bytesleft--;
+		}
+	}
+}
+
+/*---------------------------------------------------------------------------------------------*
+    Name:           usb_receivebuffer
+    Description:	Simple buffer receive routine
+*----------------------------------------------------------------------------------------------*/
+
+void usb_receivebuffer (void *buffer, int size)
+{
+	char *receivebyte = (char*)buffer;
+	s32 bytesleft = size;						
+	s32 returnvalue;
+
+	while (bytesleft > 0)
+	{
+		returnvalue = __usb_receivebyte(receivebyte);	
+		if(returnvalue) {							
+			receivebyte++;							
+			bytesleft--;							
+		}
+	}
+}
+
+/*---------------------------------------------------------------------------------------------*
+    Name:           usb_sendbuffersafe
+    Description:	Simple buffer send routine with fifo check (use for large transfers)
+*----------------------------------------------------------------------------------------------*/
+
+void usb_sendbuffersafe (const void *buffer, int size)
+{
+	char *sendbyte = (char*) buffer;
+	s32 bytesleft = size;					
+	s32 returnvalue;
+
+	while (bytesleft  > 0)
+	{
+		if(__usb_checksendstatus()){
+			returnvalue = __usb_sendbyte(*sendbyte);		
+			if(returnvalue) {							
+				sendbyte++;							
+				bytesleft--;						
+			}
+		}
+	}
+}
+
+/*---------------------------------------------------------------------------------------------*
+    Name:           usb_receivebuffersafe
+    Description:	Simple buffer receive routine with fifo check (use for large transfers)
+*----------------------------------------------------------------------------------------------*/
+
+void usb_receivebuffersafe (void *buffer, int size)
+{
+	char *receivebyte = (char*)buffer;
+	s32 bytesleft = size;						
+	s32 returnvalue;
+
+	while (bytesleft > 0)
+	{
+		if(__usb_checkreceivestatus()){
+			returnvalue = __usb_receivebyte(receivebyte);	
+			if(returnvalue) {							
+				receivebyte++;							
+				bytesleft--;						
+			}
+		}
+	}
+}
+
+/*---------------------------------------------------------------------------------------------*
+    Name:           usb_checkgecko
+    Description:	Chesk the Gecko is connected
+*----------------------------------------------------------------------------------------------*/
+int usb_checkgecko()
+{
+	s32 i = 0;
+
+	exi_chan1sr = 0x000000D0;						
+	exi_chan1data = 0x90000000;						
+	exi_chan1cr = 0x19;								
+	while((exi_chan1cr)&1);							
+	i = exi_chan1data;									
+	exi_chan1sr = 0x0; 
+	if (i==0x04700000){
+		return 1;									
+	}   
+    return 0;									
+}
+
+/*---------------------------------------------------------------------------------------------*
+    Name:           usb_flush
+    Description:	Flushes the FIFO, Use at the start of your program to avoid trash
+*----------------------------------------------------------------------------------------------*/
+
+void usb_flush()
+{
+ char tempbyte;
+
+ while (__usb_receivebyte(&tempbyte));
+}
+#endif