X-Git-Url: http://git.rot13.org/?p=linux-gpio-pinout;a=blobdiff_plain;f=gpio.pl;h=99e1703db13102d522e4a10a100cab8e472b83f4;hp=9b02c48f367d5884253889487c5b6124155b217e;hb=HEAD;hpb=5503d8eb06da6e17b83237d042d2c247a1c27d14

diff --git a/gpio.pl b/gpio.pl
index 9b02c48..99e1703 100755
--- a/gpio.pl
+++ b/gpio.pl
@@ -17,6 +17,7 @@ my $opt_lines = 0;
 my $opt_read = '';
 my $opt_pins = '';
 my $opt_color = 0;
+my $opt_pinmux = 0;
 GetOptions(
 	'svg!' => \$opt_svg,
 	'alt!' => \$opt_alt,
@@ -30,6 +31,7 @@ GetOptions(
 	'read=s' => \$opt_read,
 	'pins=s' => \$opt_pins,
 	'color' => \$opt_color,
+	'pinmux' => \$opt_pinmux,
 );
 
 # svg font hints
@@ -45,10 +47,19 @@ sub slurp {
 }
 
 my $pins;
+my $include = 0;
 
 my $model = slurp('/proc/device-tree/model');
 $model =~ s/\x00$//; # strip kernel NULL
 warn "# model [$model]";
+if ( $opt_pins ) {
+	$model = $opt_pins;
+	$model =~ s/^.*\///; # strip dir
+	$model =~ s/\..+$//; # strip extension
+	$include = 1;
+	warn "# $opt_pins model [$model] $include";
+}
+warn "# $opt_pins model [$model] $include";
 
 OPEN_PINS_AGAIN:
 open(DATA, '<', $opt_pins) if $opt_pins;
@@ -56,17 +67,16 @@ open(DATA, '<', $opt_pins) if $opt_pins;
 my @lines;
 my $line_i = 0;
 
-my $include = 0;
 while(<DATA>) {
 	chomp;
 	if ( m/^#\s(.+)/ ) {
-		warn "MODEL [$1] == [$model] ?\n";
 		if ( $model =~ m/$1/ ) {
 			$include = 1;
 		} else {
 			$include = 0;
 		}
-	} elsif ( $include || $opt_pins ) {
+		warn "MODEL [$1] == [$model] include: $include\n";
+	} elsif ( $include ) {
 		push @{ $pins->{$1} }, $line_i while ( m/\t\s*(\w+\d+)/g );
 
 		push @lines, $_;
@@ -79,8 +89,9 @@ while(<DATA>) {
 
 if ( ! $opt_pins && ! $pins ) {
 	my $glob = $model;
-	my $glob =~ s/^(\w+).*$/$1/;
+	$glob =~ s/^(\w+).*$/$1/;
 	my @pins = glob "pins/${glob}*";
+	die "pins/${glob} NOT FOUND for this board, please create one and contribute" unless @pins;
 	warn "# possible pins: ",dump( \@pins );
 	$opt_pins = $pins[0];
 	goto OPEN_PINS_AGAIN;
@@ -158,6 +169,45 @@ while(<$fh>) {
 
 warn "# pin_function = ",dump($pin_function);
 
+
+# insert kernel gpio info
+my $linux_gpio_name;
+open(my $pins_fh, '<', (glob "/sys/kernel/debug/pinctrl/*/pins")[0]);
+while(<$pins_fh>) {
+	if ( m/^pin (\d+) \(([^\)]+)\)/ ) {
+		$linux_gpio_name->{$1} = $2;
+	}
+}
+warn "# linux_gpio_name = ",dump( $linux_gpio_name );
+
+
+my $gpio_debug;
+open(my $gpio_fh, '<', '/sys/kernel/debug/gpio');
+while(<$gpio_fh>) {
+	if (m/|/ ) {
+		s/^\s+//;
+		s/\s+$//;
+		my @l = split(/\s*[\(\|\)]\s*/, $_);
+		warn "XXX ", dump( \@l );
+		if ( $l[0] =~ m/gpio-(\d+)/ ) {
+			if ( my $pin = $linux_gpio_name->{$1} ) {
+				$gpio_debug->{ $pin } = $l[2];
+				$l[3] =~ s/\s\s+/ /g;
+				annotate_pin $pin, qq{"$l[2]" $l[3]};
+			} else {
+				warn "FIXME can't find $1 in ",dump( $linux_gpio_name );
+			}
+		}
+	}
+
+}
+warn "# gpio_debug = ",dump( $gpio_debug );
+
+
+
+my $have_sunxi_pio = `which sunxi-pio`;
+if ( $have_sunxi_pio ) {
+
 open(my $pio, '-|', 'sunxi-pio -m print');
 while(<$pio>) {
 	chomp;
@@ -171,6 +221,66 @@ while(<$pio>) {
 }
 close($pio);
 
+} # have_sunxi_pio
+
+my $have_raspi_gpio = `which raspi-gpio`;
+if ( $have_raspi_gpio ) {
+
+my @gpio_pins;
+
+open(my $pio, '-|', 'raspi-gpio get');
+while(<$pio>) {
+	chomp;
+	if ( m/^\s*GPIO (\d+): (.+)/ ) {
+		my $pin = 'gpio' . $1 * 1; # we need * 1 to strip leading zero
+		push @gpio_pins, $1;
+		annotate_pin $pin, $2 if ! $opt_svg;
+	}
+}
+close($pio);
+
+open(my $pio, '-|', 'raspi-gpio funcs '.join(',',@gpio_pins));
+while(<$pio>) {
+	chomp;
+	s/,\s/ /g;
+	if (m/^(\d+)\s+(.*)/) {
+		annotate_pin 'gpio'.$1,"($2)" if $opt_alt;
+	}
+}
+close($pio);
+
+} # have_raspi_gpio
+
+
+my $pinmux;
+my $pinmux_path = (glob("/sys/kernel/debug/pinctrl/*/pinmux-functions"))[0];
+if ( $opt_pinmux && -e $pinmux_path ) {
+	open(my $mux, '<', $pinmux_path);
+	while(<$mux>) {
+		chomp;
+		if ( m/function: (\w+), groups = \[ (.*) \]/ ) {
+			my ( $func, $pins ) = ( $1, $2 );
+			foreach ( split(/\s+/,$pins) ) {
+				push @{ $pinmux->{$_} }, $func;
+			}
+		} else {
+			warn "IGNORED [$pinmux_path] [$_]\n";
+		}
+	}
+
+	foreach my $pin ( keys %$pinmux ) {
+		if ( exists $pins->{$pin} ) {
+			annotate_pin $pin, '{' . join(' ', @{$pinmux->{$pin}}) . '}';
+		} else {
+			warn "IGNORED mux on $pin\n";
+		}
+	}
+
+	warn "# pinmux = ",dump( $pinmux );
+}
+
+
+
 my @max_len = ( 0,0,0,0 );
 my @line_parts;