Moved fw/ and tools/ into atrf/ as well.

- fw/: moved to atrf/fw/
- tools/: moved to atrf/tools/
- atrf/fw/atspi/Makefile, atrf/fw/boot/Makefile: updated relative path to
  f32xbase
- atrf/tools/Makefile: updated relative path to Makefile.recurse
- atrf/tools/atspi-id/Makefile, atrf/tools/atspi-reset/Makefile,
  atrf/tools/atspi-rssi/Makefile, atrf/tools/lib/Makefile: updated relative
  path to f32xbase
- atrf/fw/include/at86rf230.h: corrected path in title
- atrf/tools/include/atspi.h: added title and copyright header

atrf/fw/atspi/atspi.c

@@ -0,0 +1,103 @@
+/*
+ * atspi/atspi.c - ATSPI initialization and main loop
+ *
+ * Written 2008-2010 by Werner Almesberger
+ * Copyright 2008-2010 Werner Almesberger
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+
+#include "regs.h"
+#include "io.h"
+#include "usb.h"
+#include "atspi/ep0.h"
+#include "version.h"
+
+
+void reset_rf(void)
+{
+	int i;
+
+	nRST_RF = 0;
+	/*
+	 * 11.4.12: min 625 ns.
+	 * The pulse we generate is slightly longer than 4 us.
+	 */
+	for (i = 0; i != 10; i++);
+	nRST_RF = 1;
+}
+
+
+static void init_io(void)
+{
+	/*
+	 * Signal	Mode		Value
+	 *
+	 * MOSI		push-pull	0
+	 * MISO		open drain	1	(input)
+	 * SCLK		push-pull	0
+	 * nSS		push-pull	1
+	 * nRST_RF	push-pull	1
+	 * IRQ_RF	open drain	1	(input)
+	 * SLP_TR	push-pull	0
+	 *
+	 * LED		push-pull	0	(set up by boot loader)
+	 *
+	 * all unused	open drain 	0
+	 */
+
+	MOSI = 0;
+	MOSI_MODE |= 1 << MOSI_BIT;
+
+	SCLK = 0;
+	SCLK_MODE |= 1 << SCLK_BIT;
+
+	nSS_MODE |= 1 << nSS_BIT;
+
+	nRST_RF_MODE |= 1 << nRST_RF_BIT;
+
+	SLP_TR = 0;
+	SLP_TR_MODE |= 1 << SLP_TR_BIT;
+
+	P0 &=
+	    ~((1 << 0) | (1 << 3) | (1 << 4) | (1 << 5) | (1 << 6) | (1 << 7));
+	    /* change 1 << 0 to 1 << 2 once 100813 boards are reworked */
+	P3 = 0;
+
+#if 0
+	/*
+	 * We can *almost* disable the pull-ups. The only obstacle is that
+	 * MISO is not driven when not in use. So we either need an external
+	 * pull-up/down or keep all the pull-ups on.
+	 */
+
+	/*
+	 * Disable pull-ups
+	 */
+	GPIOCN |= WEAKPUD;
+#endif
+
+	/*
+	 * The manual says the reset is optional, but reality disagrees with
+	 * this optimistic assessment quite violently.
+	 */
+
+	reset_rf();
+}
+
+
+void main(void)
+{
+	init_io();
+
+	usb_init();
+	ep0_init();
+
+	while (1) {
+		usb_poll();
+	}
+}