nice

-----Original Message----- From: Adrian Chadd
Sent: Wednesday, January 02, 2013 3:19 PM
To: freebsd-wireless@freebsd.org
Subject: Skeleton spectral scan driver support is in -HEAD (was Re: svn commit: r244953 - in head/tools/tools/ath: . athspectral)

... and with that, anyone wishing to write a spectral scan
visualisation application now has all the basic bits they need to do
so.

ie:

* create interface in monitor mode
* sysctl dev.ath.0.monpass=0xff (just to ensure you get spectral scan errors)
* ifconfig wlan0 channel 1:ht/20
* ifconfig wlan0 up
* athspectral -i ath0 start
* sleep 0.5
* ifconfig wlan0 down ; ifconfig wlan0 channel 6:ht/20; ifconfig wlan0 up
* athspectral -i ath0 start
* sleep 0.5
* ifconfig wlan0 down ; ifconfig wlan0 channel 11:ht/20; ifconfig wlan0 up
* athspectral -i ath0 start
* sleep 0.5
... etc.

All someone(!) now needs to do is write an application that sniffs the
spectral scan FFT data from a radiotap interface and you're done.

There's more interesting things one can do (eg not use the short
repeat functionality, so you get big sets of continuous spectral scan
reports; play with "continuous" reporting, etc.) once the basic FFT
visualisation is done.

Go forth and do interesting things. Oh, and please open source some of them. :)



Adrian


On 1 January 2013 20:02, Adrian Chadd <adr...@freebsd.org> wrote:
Author: adrian
Date: Wed Jan  2 04:02:27 2013
New Revision: 244953
URL: http://svnweb.freebsd.org/changeset/base/244953

Log:
  Add a very skeletal spectral scan control application.

  The main use for this is to manually trigger spectral scan operations
  (athspectral -i athX start) whilst doing debugging.

Added:
  head/tools/tools/ath/athspectral/
  head/tools/tools/ath/athspectral/Makefile   (contents, props changed)
head/tools/tools/ath/athspectral/athspectral.c (contents, props changed)
Modified:
  head/tools/tools/ath/Makefile

Modified: head/tools/tools/ath/Makefile
==============================================================================
--- head/tools/tools/ath/Makefile Wed Jan 2 04:00:54 2013 (r244952) +++ head/tools/tools/ath/Makefile Wed Jan 2 04:02:27 2013 (r244953)
@@ -3,6 +3,6 @@
SUBDIR= arcode athdebug athdecode athkey athpoke athprom athrd athregs
 SUBDIR+=       athstats ath_prom_read athradar athaggrstats
 SUBDIR+=       ath_ee_v14_print ath_ee_v4k_print ath_ee_9287_print
-SUBDIR+=       athsurvey athratestats
+SUBDIR+=       athsurvey athratestats athspectral

 .include <bsd.subdir.mk>

Added: head/tools/tools/ath/athspectral/Makefile
==============================================================================
--- /dev/null   00:00:00 1970   (empty, because file is newly added)
+++ head/tools/tools/ath/athspectral/Makefile Wed Jan 2 04:02:27 2013 (r244953)
@@ -0,0 +1,16 @@
+# $FreeBSD$
+
+PROG=  athspectral
+
+.include <../Makefile.inc>
+
+SRCS=  athspectral.c
+SRCS+= opt_ah.h
+CLEANFILES+=   opt_ah.h
+
+opt_ah.h:
+       echo "#define AH_DEBUG 1" > opt_ah.h
+       echo "#define AH_DEBUG_COUNTRY 1" >> opt_ah.h
+       echo "#define AH_SUPPORT_AR5416 1" >> opt_ah.h
+
+.include <bsd.prog.mk>

Added: head/tools/tools/ath/athspectral/athspectral.c
==============================================================================
--- /dev/null   00:00:00 1970   (empty, because file is newly added)
+++ head/tools/tools/ath/athspectral/athspectral.c Wed Jan 2 04:02:27 2013 (r244953)
@@ -0,0 +1,323 @@
+/*
+ * Copyright (c) 2013 Adrian Chadd <adr...@freebsd.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#include "diag.h"
+
+#include "ah.h"
+#include "ah_internal.h"
+
+#ifndef        ATH_DEFAULT
+#define        ATH_DEFAULT     "ath0"
+#endif
+
+#include <getopt.h>
+#include <errno.h>
+#include <err.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+#include <unistd.h>
+
+struct spectralhandler {
+       struct          ath_diag atd;
+       int             s;
+       struct ifreq    ifr;
+       int             ah_devid;
+};
+
+int
+spectral_opendev(struct spectralhandler *spectral, const char *devid)
+{
+       HAL_REVS revs;
+
+       spectral->s = socket(AF_INET, SOCK_DGRAM, 0);
+       if (spectral->s < 0) {
+               warn("socket");
+               return 0;
+       }
+
+ strncpy(spectral->atd.ad_name, devid, sizeof (spectral->atd.ad_name));
+
+       /* Get the hardware revision, just to verify things are working */
+       spectral->atd.ad_id = HAL_DIAG_REVS;
+       spectral->atd.ad_out_data = (caddr_t) &revs;
+       spectral->atd.ad_out_size = sizeof(revs);
+       if (ioctl(spectral->s, SIOCGATHDIAG, &spectral->atd) < 0) {
+               warn(spectral->atd.ad_name);
+               return 0;
+       }
+       spectral->ah_devid = revs.ah_devid;
+       return 1;
+}
+
+void
+spectral_closedev(struct spectralhandler *spectral)
+{
+       close(spectral->s);
+       spectral->s = -1;
+}
+
+void
+spectralset(struct spectralhandler *spectral, int op, u_int32_t param)
+{
+       HAL_SPECTRAL_PARAM pe;
+
+       pe.ss_fft_period = HAL_SPECTRAL_PARAM_NOVAL;
+       pe.ss_period = HAL_SPECTRAL_PARAM_NOVAL;
+       pe.ss_count = HAL_SPECTRAL_PARAM_NOVAL;
+       pe.ss_short_report = HAL_SPECTRAL_PARAM_NOVAL;
+       pe.ss_spectral_pri = HAL_SPECTRAL_PARAM_NOVAL;
+       pe.ss_fft_period = HAL_SPECTRAL_PARAM_NOVAL;
+       pe.ss_enabled = HAL_SPECTRAL_PARAM_NOVAL;
+       pe.ss_active = HAL_SPECTRAL_PARAM_NOVAL;
+
+       switch (op) {
+       case SPECTRAL_PARAM_FFT_PERIOD:
+               pe.ss_fft_period = param;
+               break;
+       case SPECTRAL_PARAM_SS_PERIOD:
+               pe.ss_period = param;
+               break;
+       case SPECTRAL_PARAM_SS_COUNT:
+               pe.ss_count = param;
+               break;
+       case SPECTRAL_PARAM_SS_SHORT_RPT:
+               pe.ss_short_report = param;
+               break;
+       }
+
+       spectral->atd.ad_id = SPECTRAL_CONTROL_SET_PARAMS | ATH_DIAG_IN;
+       spectral->atd.ad_out_data = NULL;
+       spectral->atd.ad_out_size = 0;
+       spectral->atd.ad_in_data = (caddr_t) &pe;
+       spectral->atd.ad_in_size = sizeof(HAL_SPECTRAL_PARAM);
+       if (ioctl(spectral->s, SIOCGATHSPECTRAL, &spectral->atd) < 0)
+               err(1, spectral->atd.ad_name);
+}
+
+static void
+spectral_get(struct spectralhandler *spectral)
+{
+       HAL_SPECTRAL_PARAM pe;
+
+       spectral->atd.ad_id = SPECTRAL_CONTROL_GET_PARAMS | ATH_DIAG_DYN;
+       memset(&pe, 0, sizeof(pe));
+
+       spectral->atd.ad_in_data = NULL;
+       spectral->atd.ad_in_size = 0;
+       spectral->atd.ad_out_data = (caddr_t) &pe;
+       spectral->atd.ad_out_size = sizeof(pe);
+
+       if (ioctl(spectral->s, SIOCGATHSPECTRAL, &spectral->atd) < 0)
+               err(1, spectral->atd.ad_name);
+
+       printf("Spectral parameters (raw):\n");
+       printf("   ss_enabled: %d\n", pe.ss_enabled);
+       printf("   ss_active: %d\n", pe.ss_active);
+       printf("   ss_count: %d\n", pe.ss_count);
+       printf("   ss_fft_period: %d\n", pe.ss_fft_period);
+       printf("   ss_period: %d\n", pe.ss_period);
+       printf("   ss_short_report: %d\n", pe.ss_short_report);
+       printf("   radar_bin_thresh_sel: %d\n", pe.radar_bin_thresh_sel);
+}
+
+static void
+spectral_start(struct spectralhandler *spectral)
+{
+       HAL_SPECTRAL_PARAM pe;
+
+       spectral->atd.ad_id = SPECTRAL_CONTROL_START | ATH_DIAG_DYN;
+       memset(&pe, 0, sizeof(pe));
+
+       /*
+ * XXX don't need these, but need to eliminate the ATH_DIAG_DYN flag
+        * and debug
+        */
+       spectral->atd.ad_in_data = NULL;
+       spectral->atd.ad_in_size = 0;
+       spectral->atd.ad_out_data = (caddr_t) &pe;
+       spectral->atd.ad_out_size = sizeof(pe);
+
+       if (ioctl(spectral->s, SIOCGATHSPECTRAL, &spectral->atd) < 0)
+               err(1, spectral->atd.ad_name);
+}
+
+static void
+spectral_stop(struct spectralhandler *spectral)
+{
+       HAL_SPECTRAL_PARAM pe;
+
+       spectral->atd.ad_id = SPECTRAL_CONTROL_STOP | ATH_DIAG_DYN;
+       memset(&pe, 0, sizeof(pe));
+
+       /*
+ * XXX don't need these, but need to eliminate the ATH_DIAG_DYN flag
+        * and debug
+        */
+       spectral->atd.ad_in_data = NULL;
+       spectral->atd.ad_in_size = 0;
+       spectral->atd.ad_out_data = (caddr_t) &pe;
+       spectral->atd.ad_out_size = sizeof(pe);
+
+       if (ioctl(spectral->s, SIOCGATHSPECTRAL, &spectral->atd) < 0)
+               err(1, spectral->atd.ad_name);
+}
+
+static int
+spectral_set_param(struct spectralhandler *spectral, const char *param,
+    const char *val)
+{
+       int v;
+
+       v = atoi(val);
+
+       if (strcmp(param, "ss_short_report") == 0) {
+               spectralset(spectral, SPECTRAL_PARAM_SS_SHORT_RPT, v);
+       } else if (strcmp(param, "ss_fft_period") == 0) {
+               spectralset(spectral, SPECTRAL_PARAM_FFT_PERIOD, v);
+       } else if (strcmp(param, "ss_period") == 0) {
+               spectralset(spectral, SPECTRAL_PARAM_SS_PERIOD, v);
+       } else if (strcmp(param, "ss_count") == 0) {
+               spectralset(spectral, SPECTRAL_PARAM_SS_COUNT, v);
+       } else {
+               return (0);
+       }
+
+#if 0
+       if (strcmp(param, "enabled") == 0) {
+               spectralset(spectral, DFS_PARAM_ENABLE, v);
+       } else if (strcmp(param, "firpwr") == 0) {
+               spectralset(spectral, DFS_PARAM_FIRPWR, v);
+       } else if (strcmp(param, "rrssi") == 0) {
+               spectralset(spectral, DFS_PARAM_RRSSI, v);
+       } else if (strcmp(param, "height") == 0) {
+               spectralset(spectral, DFS_PARAM_HEIGHT, v);
+       } else if (strcmp(param, "prssi") == 0) {
+               spectralset(spectral, DFS_PARAM_PRSSI, v);
+       } else if (strcmp(param, "inband") == 0) {
+               spectralset(spectral, DFS_PARAM_INBAND, v);
+       } else if (strcmp(param, "relpwr") == 0) {
+               spectralset(spectral, DFS_PARAM_RELPWR, v);
+       } else if (strcmp(param, "relstep") == 0) {
+               spectralset(spectral, DFS_PARAM_RELSTEP, v);
+       } else if (strcmp(param, "maxlen") == 0) {
+               spectralset(spectral, DFS_PARAM_MAXLEN, v);
+       } else if (strcmp(param, "usefir128") == 0) {
+               spectralset(spectral, DFS_PARAM_USEFIR128, v);
+       } else if (strcmp(param, "blockspectral") == 0) {
+               spectralset(spectral, DFS_PARAM_BLOCKRADAR, v);
+       } else if (strcmp(param, "enmaxrssi") == 0) {
+               spectralset(spectral, DFS_PARAM_MAXRSSI_EN, v);
+       } else if (strcmp(param, "extchannel") == 0) {
+               spectralset(spectral, DFS_PARAM_EN_EXTCH, v);
+       } else if (strcmp(param, "enrelpwr") == 0) {
+               spectralset(spectral, DFS_PARAM_RELPWR_EN, v);
+       } else if (strcmp(param, "en_relstep_check") == 0) {
+               spectralset(spectral, DFS_PARAM_RELSTEP_EN, v);
+       } else {
+               return 0;
+       }
+#endif
+
+       return 1;
+}
+
+void
+usage(const char *progname)
+{
+       printf("Usage:\n");
+       printf("\t%s: [-i <interface>] <cmd> (<arg>)\n", progname);
+       printf("\t%s: [-h]\n", progname);
+       printf("\n");
+       printf("Valid commands:\n");
+       printf("\tget:\t\tGet current spectral parameters\n");
+       printf("\tset <param> <value>:\t\tSet spectral parameter\n");
+       printf("\tstart: Start spectral scan\n");
+       printf("\tstop: Stop spectral scan\n");
+}
+
+int
+main(int argc, char *argv[])
+{
+       struct spectralhandler spectral;
+       const char *devname = ATH_DEFAULT;
+       const char *progname = argv[0];
+
+       memset(&spectral, 0, sizeof(spectral));
+
+       /* Parse command line options */
+       if (argc >= 2 && strcmp(argv[1], "-h") == 0) {
+               usage(progname);
+               exit(0);
+       }
+       if (argc >= 2 && strcmp(argv[1], "-?") == 0) {
+               usage(progname);
+               exit(0);
+       }
+
+       if (argc >= 2 && strcmp(argv[1], "-i") == 0) {
+               if (argc == 2) {
+                       usage(progname);
+                       exit(127);
+               }
+               devname = argv[2];
+               argc -= 2; argv += 2;
+       }
+
+       /* At this point we require at least one command */
+       if (argc == 1) {
+               usage(progname);
+               exit(127);
+       }
+
+       if (spectral_opendev(&spectral, devname) == 0)
+               exit(127);
+
+       if (strcasecmp(argv[1], "get") == 0) {
+               spectral_get(&spectral);
+       } else if (strcasecmp(argv[1], "set") == 0) {
+               if (argc < 4) {
+                       usage(progname);
+                       exit(127);
+               }
+ if (spectral_set_param(&spectral, argv[2], argv[3]) == 0) {
+                       usage(progname);
+                       exit(127);
+               }
+       } else if (strcasecmp(argv[1], "start") == 0) {
+               spectral_start(&spectral);
+       } else if (strcasecmp(argv[1], "stop") == 0) {
+               spectral_stop(&spectral);
+       } else {
+               usage(progname);
+               exit(127);
+       }
+
+       /* wrap up */
+       spectral_closedev(&spectral);
+       exit(0);
+}
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