From 95cde1077dac1f6bc609a696b04e0a91f9105440 Mon Sep 17 00:00:00 2001
From: lilafisch <lilafisch@blackbox.(none)>
Date: Thu, 8 Dec 2011 01:36:49 +0100
Subject: [PATCH] first structure for game interface l0dable

---
 firmware/l0dable/r_player.c | 289 ++++++++++++++++++++++++++++++++++++
 1 file changed, 289 insertions(+)
 create mode 100644 firmware/l0dable/r_player.c

diff --git a/firmware/l0dable/r_player.c b/firmware/l0dable/r_player.c
new file mode 100644
index 0000000..9db06f9
--- /dev/null
+++ b/firmware/l0dable/r_player.c
@@ -0,0 +1,289 @@
+#include <sysinit.h>
+
+#include "basic/basic.h"
+#include "basic/byteorder.h"
+
+#include "lcd/lcd.h"
+#include "lcd/print.h"
+
+#include "funk/nrf24l01p.h"
+
+//includes useful for r_game:
+//#include "usbcdc/usb.h"
+//#include "usbcdc/usbcore.h"
+//#include "usbcdc/usbhw.h"
+//#include "usbcdc/cdcuser.h"
+//#include "usbcdc/cdc_buf.h"
+//#include "usbcdc/util.h"
+
+#include <string.h>
+#include "basic/random.h"
+
+#include "usetable.h"
+
+#define REMOTE_CHANNEL 81
+
+//mac that the player receives
+#define PLAYER_MAC     "\x1\x2\x3\x2\x1"
+
+//mac that the game receives
+#define GAME_MAC     "\x1\x2\x3\x2\x1"
+
+//#if CFG_USBMSC
+//#error "MSC is defined"
+//#endif
+
+//#if !CFG_USBCDC
+//#error "CDC is not defined"
+//#endif
+
+struct NRF_CFG config = {        //for some reason this has to be global
+        .channel= REMOTE_CHANNEL,
+        .txmac= GAME_MAC,
+        .nrmacs=1,
+        .mac0=  PLAYER_MAC,
+        .maclen ="\x10",
+    };
+
+struct packet{
+    uint8_t len;
+    uint8_t protocol;
+    uint8_t command;
+    
+    //union with 11 bytes data
+    union content{
+        struct button{
+            uint8_t button;
+            uint32_t id;
+            uint32_t cnt;
+            uint8_t reserved[2];
+        }button;
+
+        struct text{
+            uint8_t x;
+            uint8_t y;
+            uint8_t flags;
+            uint8_t text[8];
+        }text;
+        struct nick{
+            uint8_t flags;
+            uint8_t text[10];
+        }nick;
+        struct nickrequest{
+           uint8_t reserved[11];
+        }nickrequest;
+    }c;
+    uint16_t crc;
+};
+
+
+/**************************************************************************/
+/* l0dable for playing games which are announced by other r0kets with the l0dabel r_game */
+/* Values of buf[3]:
+ * B: packet sent by player, contain information which button is pressed
+ * T: packet sent by game, contain text for display
+ * N: packet sent by game, requesting nick
+ * n: packet sent player, containing nick
+ */
+
+uint32_t ctr;
+uint32_t id;
+
+void sendButton(uint8_t button);
+void sendJoin(uint8_t game);
+void processPacket(struct packet *p);
+
+void ram(void)
+{
+    nrf_config_set(&config);
+    id = getRandom();
+    ctr = 1;
+    int len;
+    struct packet p;
+
+    while(1){
+        uint8_t button = getInputRaw();
+        sendButton(button);
+        
+        while(1){
+            len = nrf_rcv_pkt_time(30,sizeof(p),(uint8_t*)&p);
+            if(len==sizeof(p)){
+            processPacket(&p);
+            }else{
+                break;
+            }
+        }
+        delayms(20);
+    };
+};
+//getInputRaw();
+
+void processPacket(struct packet *p)
+{
+   if ((p->len==16) && (p->protocol=='G')){   //check sanity, protocol
+     if (p->command=='T'){
+     //processText(&(p->c.text));
+     } 
+     else if (p->command=='N'){
+     //processNick(&(p->c.nickrequest));
+     }
+   }     
+}
+
+
+//increment ctr and send button state, id and ctr
+void sendButton(uint8_t button)
+{
+    uint8_t buf[16];
+    buf[0]=0x10; // Length: 16 bytes
+    buf[1]='G'; // Proto
+    buf[2]='B';
+    buf[3]=button;
+
+    ctr++;
+    *(int*)(buf+4)=ctr;
+    ctr+=4;
+    *(int*)(buf+4)=id;
+
+    //lcdClear();
+    //lcdPrint("Key:"); lcdPrintInt(buf[2]); lcdNl();
+
+    nrf_snd_pkt_crc(16,buf);
+}
+
+//send join request for game
+void sendJoin(uint8_t game)
+{
+    uint8_t buf[16];
+    buf[0]=0x10; // Length: 16 bytes
+    buf[1]='G'; // Proto
+    buf[2]='J';
+    buf[3]=game;
+
+    ctr++;
+    *(int*)(buf+4)=ctr;
+    ctr+=4;
+    *(int*)(buf+4)=id;
+
+    nrf_snd_pkt_crc(16,buf);
+}
+    
+
+/*
+void s_init(void){
+    usbCDCInit();
+    nrf_init();
+
+    struct NRF_CFG config = {
+        .channel= REMOTE_CHANNEL,
+        .txmac= REMOTE_MAC,
+        .nrmacs=1,
+        .mac0=  REMOTE_MAC,
+        .maclen ="\x10",
+    };
+
+    nrf_config_set(&config);
+};
+*/
+
+/* void process(uint8_t * input){
+    __attribute__ ((aligned (4))) uint8_t buf[32];
+    puts("process: ");
+    puts(input);
+    puts("\r\n");
+    if(input[0]=='M'){
+        buf[0]=0x10; // Length: 16 bytes
+        buf[1]='M'; // Proto
+        buf[2]=0x01;
+        buf[3]=0x01; // Unused
+
+        uint32touint8p(0,buf+4);
+
+        uint32touint8p(0x41424344,buf+8);
+
+        buf[12]=0xff; // salt (0xffff always?)
+        buf[13]=0xff;
+        nrf_snd_pkt_crc_encr(16,buf,remotekey);
+        nrf_rcv_pkt_start();
+    };
+
+};
+*/
+
+/*
+#define INPUTLEN 99
+void r_recv(void){
+    __attribute__ ((aligned (4))) uint8_t buf[32];
+    int len;
+
+    uint8_t input[INPUTLEN+1];
+    int inputptr=0;
+
+    nrf_rcv_pkt_start();
+    puts("D start");
+
+    getInputWaitRelease();
+
+    while(!getInputRaw()){
+        delayms(100);
+
+        // Input
+        int l=INPUTLEN-inputptr;
+        CDC_OutBufAvailChar (&l);
+
+        if(l>0){
+            CDC_RdOutBuf (input+inputptr, &l);
+            input[inputptr+l+1]=0;
+            for(int i=0;i<l;i++){
+                if(input[inputptr+i] =='\r'){
+                    input[inputptr+i]=0;
+                    process(input);
+                    if(i<l)
+                        memmove(input,input+inputptr+i+1,l-i);
+                    inputptr=-i-1;
+                    break;
+                };
+            };
+        };
+        inputptr+=l;
+        len=nrf_rcv_pkt_poll_dec(sizeof(buf),buf,remotekey);
+
+        // Receive
+        if(len<=0){
+            delayms(10);
+            continue;
+        };
+
+        if(buf[1]=='C'){ // Cursor
+            puts("C ");
+            puts(IntToStrX( buf[2],2 ));
+            puts(" ");
+            puts(IntToStrX( uint8ptouint32(buf+4), 8 ));
+            puts(" ");
+            puts(IntToStrX( uint8ptouint32(buf+8), 8 ));
+        }else{
+            puts("U ");
+//          puts("[");puts(IntToStrX(len,2));puts("] ");
+            puts(IntToStrX( *(int*)(buf+  0),2 ));
+            puts(" ");
+            puts(IntToStrX( *(int*)(buf+  1),2 ));
+            puts(" ");
+            puts(IntToStrX( *(int*)(buf+  2),2 ));
+            puts(" ");
+            puts(IntToStrX( *(int*)(buf+  3),2 ));
+            puts(" ");
+            puts(IntToStrX( uint8ptouint32(buf+4),8 ));
+            puts(".");
+            puts(IntToStrX( uint8ptouint32(buf+8),8 ));
+            puts(" ");
+            puts(IntToStrX( uint8ptouint32(buf+10),4 ));
+        };
+        puts("\r\n");
+
+    };
+
+    nrf_rcv_pkt_end();
+    puts("D exit");
+}
+};
+*/