atspi-reset: utility to reset transceiver or entire board.

- tools/include/atspi.h, tools/lib/atspi.c (atspi_reset): new function to
  send the ATSPI_RESET command (MCU reset)
- tools/include/atspi.h, tools/lib/atspi.c (atspi_reset_rf): new function
  to send the ATSPI_RESET_RF command (transceiver reset)
- tools/atspi-reset/Makefile, tools/atspi-reset/atspi-reset.c: reset utility

tools/atspi-reset/Makefile

@@ -0,0 +1,21 @@
+#
+# atspi-reset/Makefile - Reset the transceiver or the whole board
+#
+# Written 2010 by Werner Almesberger
+# Copyright 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.
+#
+
+
+F32XBASE = ../../../f32xbase
+
+MAIN = atspi-reset
+
+include $(F32XBASE)/lib/Makefile.common
+
+CFLAGS += -I../../fw/include -I../include
+LDLIBS += -L../lib -latspi

tools/atspi-reset/atspi-reset.c

@@ -0,0 +1,62 @@
+/*
+ * atspi-rssi/atspi-rssi.c - ben-wpan AF86RF230 spectrum scan
+ *
+ * Written 2010 by Werner Almesberger
+ * Copyright 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 <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <usb.h>
+
+#include "atspi.h"
+
+
+static void usage(const char *name)
+{
+	fprintf(stderr,
+"usage: %s [-a|-t]\n\n"
+"  -a  reset the MCU and transceiver\n"
+"  -t  reset transceiver (default)\n"
+    , name);
+	exit(1);
+}
+
+
+int main(int argc, const char **argv)
+{
+	usb_dev_handle *dev;
+	int txrx = 1;
+
+	switch (argc) {
+	case 1:
+		break;
+	case 2:
+		if (!strcmp(argv[1], "-t"))
+			break;
+		txrx = 0;
+		if (!strcmp(argv[1], "-a"))
+			break;
+		/* fall through */
+	default:
+		usage(*argv);
+	}
+
+	dev = atspi_open();
+	if (!dev)
+		return 1;
+
+        if (txrx)
+                atspi_reset_rf(dev);
+        else
+                atspi_reset(dev);
+        return 0;
+}
+

tools/include/atspi.h

@@ -12,6 +12,9 @@ int atspi_clear_error(void);
 usb_dev_handle *atspi_open(void);
 void atspi_close(usb_dev_handle *dev);
 
+void atspi_reset(usb_dev_handle *dev);
+void atspi_reset_rf(usb_dev_handle *dev);
+
 void atspi_reg_write(usb_dev_handle *dev, uint8_t reg, uint8_t value);
 uint8_t atspi_reg_read(usb_dev_handle *dev, uint8_t reg);
 

tools/lib/atspi.c

@@ -71,6 +71,41 @@ void atspi_close(usb_dev_handle *dev)
 }
 
 
+/* ----- device mode ------------------------------------------------------- */
+
+
+void atspi_reset(usb_dev_handle *dev)
+{
+	int res;
+
+	if (error)
+		return;
+
+	res =
+	    usb_control_msg(dev, TO_DEV, ATSPI_RESET, 0, 0, NULL, 0, 1000);
+	if (res < 0) {
+		fprintf(stderr, "ATSPI_RESET: %d\n", res);
+		error = 1;
+	}
+}
+
+
+void atspi_reset_rf(usb_dev_handle *dev)
+{
+	int res;
+
+	if (error)
+		return;
+
+	res =
+	    usb_control_msg(dev, TO_DEV, ATSPI_RF_RESET, 0, 0, NULL, 0, 1000);
+	if (res < 0) {
+		fprintf(stderr, "ATSPI_RF_RESET: %d\n", res);
+		error = 1;
+	}
+}
+
+
 /* ----- register access --------------------------------------------------- */