1 package edu.berkeley.slipway;
4 import com.atmel.fpslic.*;
5 import edu.berkeley.obits.*;
6 import org.ibex.util.*;
11 public class FtdiBoard extends Fpslic implements Board {
14 System.load(new File("build/"+System.mapLibraryName("FtdiUartNative")).getAbsolutePath());
17 private final FpslicBoot chip;
18 private final DataInputStream in;
19 private final DataOutputStream out;
21 public InputStream getInputStream() { return in; }
22 public OutputStream getOutputStream() { return out; }
24 public FtdiBoard() throws Exception {
25 chip = new FpslicBoot(new FpslicBootPinsUsb(new FtdiUart(0x6666, 0x3133, 1500 * 1000)));
26 String bstFile = this.getClass().getName();
27 bstFile = bstFile.substring(0, bstFile.lastIndexOf('.'));
28 bstFile = bstFile.replace('.', '/')+"/slipway_drone.bst";
29 boot(new InputStreamReader(this.getClass().getClassLoader().getResourceAsStream(bstFile)));
30 in = new DataInputStream(chip.getInputStream());
31 out = new DataOutputStream(chip.getOutputStream());
32 for(int i=0; i<255; i++) out.write(0);
36 public void reset() throws IOException {
40 public void boot(Reader r) throws Exception {
45 OutputStream os = new ProgressOutputStream("bootstrap bitstream:", chip.getConfigStream(), total);
46 BufferedReader br = new BufferedReader(r);
50 String s = br.readLine();
53 os.write((byte)Integer.parseInt(s, 2));
54 if ((bytes % 1000)==0) os.flush();
59 public static String pad(String s, int i) {
60 if (s.length() >= i) return s;
61 return "0"+pad(s, i-1);
65 // AvrDrone leftovers //////////////////////////////////////////////////////////////////////////////
67 private void init() throws IOException {
68 byte[] bytes = new byte[6];
74 // read any crap that might be left in the buffer
76 System.arraycopy(bytes, 1, bytes, 0, 5);
77 bytes[5] = in.readByte();
79 System.out.print("\rsignature: read \"" + new String(bytes) + "\" ");
80 if (bytes[0] == (byte)'O' &&
81 bytes[1] == (byte)'B' &&
82 bytes[2] == (byte)'I' &&
83 bytes[3] == (byte)'T' &&
84 bytes[4] == (byte)'S') {
85 System.out.println("\rsignature: got proper signature ");
92 public synchronized void scanFPGA(boolean on) throws IOException {
101 public static int retval = 0;
102 public synchronized int readCount() {
104 if (reader != null) {
108 ByteCallback bc = new ByteCallback() {
109 public synchronized void call(byte b) throws Exception {
112 ((in.read() & 0xff) << 16) |
113 ((in.read() & 0xff) << 8) |
114 ((in.read() & 0xff) << 0);
125 } catch (Exception e) { throw new RuntimeException(e); }
128 public static interface ByteCallback {
129 public void call(byte b) throws Exception;
132 private Vector callbacks = new Vector();
134 private Thread reader = new Thread() {
136 System.out.println("*** reader thread begun");
139 byte b = in.readByte();
140 ByteCallback bc = (ByteCallback)callbacks.remove(0);
142 } catch (Exception e) {
149 public synchronized void readBus(ByteCallback bc) throws IOException {
153 if (reader != null) {
159 public synchronized void readInterrupts(ByteCallback bc) throws IOException {
163 if (reader != null) {
169 private byte[][][] cache = new byte[24][][];
170 public /*synchronized*/ byte mode4(int z, int y, int x) {
171 if (cache[x]==null) return 0;
172 if (cache[x][y]==null) return 0;
173 return cache[x][y][z];
179 public static int save = 0;
180 public static int saveof = 0;
181 public /*synchronized*/ void mode4(int z, int y, int x, int d) {
193 if (cache[x & 0xff]==null) cache[x & 0xff] = new byte[24][];
194 if (cache[x & 0xff][y & 0xff]==null) cache[x & 0xff][y & 0xff] = new byte[256];
195 cache[x & 0xff][y & 0xff][z & 0xff] = (byte)(d & 0xff);
196 } catch (IOException e) {
197 throw new RuntimeException(e);
201 public /*synchronized*/ void flush() {
204 } catch (IOException e) {
205 throw new RuntimeException(e);
209 private String pad(int i, String s) { if (s.length()>i) return s; return "0"+pad((i-1),s); }