From d60ef14022ec364273930e366338f547cbaf8968 Mon Sep 17 00:00:00 2001
From: Werner Almesberger <werner@almesberger.net>
Date: Tue, 15 Jan 2013 17:09:08 -0300
Subject: [PATCH] ubb-patgen/ubb-patgen.c: new option -p to force
 interpretation as pattern

In the unlikely event that we have a file with the same name.
---
 ubb-patgen/ubb-patgen.c | 16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

diff --git a/ubb-patgen/ubb-patgen.c b/ubb-patgen/ubb-patgen.c
index af17e26..58a559b 100644
--- a/ubb-patgen/ubb-patgen.c
+++ b/ubb-patgen/ubb-patgen.c
@@ -489,10 +489,11 @@ static void usage(const char *name)
 "usage: %s\n"
 "       %s [-q] -f freq_hz\n"
 "       %s [-q] [-f freq_hz] -c [active_s]\n"
-"       %s [-q] [-f freq_hz] [-C] file|pattern\n\n"
+"       %s [-q] [-f freq_hz] [-C] [-p] file|pattern\n\n"
 "  -c          output bus clock on CLK without sending a pattern\n"
 "  -C          temporarily output bus clock on CLK (for debugging)\n"
 "  -f freq_hz  set bus clock to the specified frequency (default: 1 MHz)\n"
+"  -p          force interpretation of argument as pattern (and not file)\n"
 "  -q          quiet. Don't pretty-print frequencies; don't report clock\n"
 "              differences.\n\n"
 "  active_s    keep running that many seconds after setting the clock\n"
@@ -515,14 +516,14 @@ int main(int argc, char **argv)
 	struct mmcclk clk;
 	int bus_hz = 0, clk_only = 0, clkout = 0, bus_rel = 0;
 	const char *pattern = NULL;
-	int quiet = 0;
+	int quiet = 0, force_pattern = 0;
 	double active_s = 0;
 	struct timespec active_ns;
 	int keep_clk = 1;
 	char *end;
 	int c;
 
-	while ((c = getopt(argc, argv, "cCf:q")) != EOF)
+	while ((c = getopt(argc, argv, "cCf:pq")) != EOF)
 		switch (c) {
 		case 'f':
 			if (!frequency(optarg, &bus_hz, &bus_rel))
@@ -534,6 +535,9 @@ int main(int argc, char **argv)
 		case 'C':
 			clkout = 1;
 			break;
+		case 'p':
+			force_pattern = 1;
+			break;
 		case 'q':
 			quiet = 1;
 			break;
@@ -548,7 +552,7 @@ int main(int argc, char **argv)
 	case 0:
 		if (clk_only)
 			break;
-		if (clkout)
+		if (clkout || force_pattern)
 			usage(*argv);
 
 		ubb_open(UBB_ALL);
@@ -565,6 +569,8 @@ int main(int argc, char **argv)
 		return 0;
 	case 1:
 		if (clk_only) {
+			if (force_pattern)
+				usage(*argv);
 			active_s = strtod(argv[argc-1], &end);
 			if (*end)
 				usage(*argv);
@@ -579,7 +585,7 @@ int main(int argc, char **argv)
 		usage(*argv);
 	}
 
-	if (pattern)
+	if (pattern && !force_pattern)
 		pattern = load_pattern(pattern);
 
 	ubb_open(UBB_ALL);