Retire the perl gethints.conf in favour of an awk version. Move

the awk version to a central place for maintenance.

Submitted by:	Cyrille Lefevre <cyrille.lefevre@laposte.net>

1 files changed, 116 insertions, 0 deletions

diff --git a/sys/amd64/conf/gethints.awk b/sys/amd64/conf/gethints.awk
new file mode 100644
index 0000000..a2de29e
--- /dev/null
+++ b/sys/amd64/conf/gethints.awk
@@ -0,0 +1,116 @@
+#! /usr/bin/awk -f
+#
+# This is a transition aid. It extracts old-style configuration information
+# from a config file and writes an equivalent device.hints file to stdout.
+# You can use that with loader(8) or statically compile it in with the
+# 'hints' directive.  See how GENERIC and GENERIC.hints fit together for
+# a static example.  You should use loader(8) if at all possible.
+#
+# $FreeBSD$
+
+# skip commented lines, empty lines and not "device" lines
+/^[ \t]*#/ || /^[ \t]*$/ || !/[ \t]*device/ { next; }
+
+# input format :
+#    device <name><unit> at <controler>[?] [key [val]]...
+# possible keys are :
+#    disable, port #, irq #, drq #, drive #, iomem #, iosiz #,
+#    flags #, bus #, target #, unit #.
+# output format :
+#    hint.<name>.<unit>.<key>=<val>
+# mapped keys are :
+#    iomem -> maddr, iosiz -> msize.
+{
+	gsub ("#.*", "");		# delete comments
+	gsub ("\"", "");		# and double-quotes
+	nameunit = $2;			# <name><unit>
+	at = $3;			# at
+	controler = $4;			# <controler>[?]
+	rest = 5;			# optional keys begin at indice 5
+	if (at != "at" || controler == "")
+		next;			# skip devices w/o controlers
+	name = nameunit;
+	sub ("[0-9]*$", "", name);	# get the name
+	unit = nameunit;
+	sub ("^" name, "", unit);	# and the unit
+	sub ("\?$", "", controler);
+	printf "hint.%s.%s.at=\"%s\"\n", name, unit, controler;
+	# for each keys, if any ?
+	for (key = $rest; rest <= NF; key = $(++rest)) {
+		# skip auto-detect keys (the one w/ a ?)
+		if (key == "port?" || key == "drq?" || key == "irq?" || \
+		    key == "iomem?" || key == "iosiz?")
+			continue;
+		# disable has no value, so, give it one
+		if (key == "disable") {
+			printf "hint.%s.%s.disabled=\"1\"\n", name, unit;
+			continue;
+		}
+		# recognized keys
+		if (key == "port" || key == "irq" || key == "drq" || \
+		    key == "drive" || key == "iomem" || key == "iosiz" || \
+		    key == "flags" || key == "bus" || key == "target" || \
+		    key == "unit") {
+			val = $(++rest);
+			if (val == "?")	# has above
+				continue;
+			if (key == "port") {
+				# map port macros to static values
+				sub ("IO_AHA0", "0x330", val);
+				sub ("IO_AHA1", "0x334", val);
+				sub ("IO_ASC1", "0x3EB", val);
+				sub ("IO_ASC2", "0x22B", val);
+				sub ("IO_ASC3", "0x26B", val);
+				sub ("IO_ASC4", "0x2AB", val);
+				sub ("IO_ASC5", "0x2EB", val);
+				sub ("IO_ASC6", "0x32B", val);
+				sub ("IO_ASC7", "0x36B", val);
+				sub ("IO_ASC8", "0x3AB", val);
+				sub ("IO_BT0", "0x330", val);
+				sub ("IO_BT1", "0x334", val);
+				sub ("IO_CGA", "0x3D0", val);
+				sub ("IO_COM1", "0x3F8", val);
+				sub ("IO_COM2", "0x2F8", val);
+				sub ("IO_COM3", "0x3E8", val);
+				sub ("IO_COM4", "0x2E8", val);
+				sub ("IO_DMA1", "0x000", val);
+				sub ("IO_DMA2", "0x0C0", val);
+				sub ("IO_DMAPG", "0x080", val);
+				sub ("IO_FD1", "0x3F0", val);
+				sub ("IO_FD2", "0x370", val);
+				sub ("IO_GAME", "0x201", val);
+				sub ("IO_GSC1", "0x270", val);
+				sub ("IO_GSC2", "0x2E0", val);
+				sub ("IO_GSC3", "0x370", val);
+				sub ("IO_GSC4", "0x3E0", val);
+				sub ("IO_ICU1", "0x020", val);
+				sub ("IO_ICU2", "0x0A0", val);
+				sub ("IO_KBD", "0x060", val);
+				sub ("IO_LPT1", "0x378", val);
+				sub ("IO_LPT2", "0x278", val);
+				sub ("IO_LPT3", "0x3BC", val);
+				sub ("IO_MDA", "0x3B0", val);
+				sub ("IO_NMI", "0x070", val);
+				sub ("IO_NPX", "0x0F0", val);
+				sub ("IO_PMP1", "0x026", val);
+				sub ("IO_PMP2", "0x178", val);
+				sub ("IO_PPI", "0x061", val);
+				sub ("IO_RTC", "0x070", val);
+				sub ("IO_TIMER1", "0x040", val);
+				sub ("IO_TIMER2", "0x048", val);
+				sub ("IO_UHA0", "0x330", val);
+				sub ("IO_VGA", "0x3C0", val);
+				sub ("IO_WD1", "0x1F0", val);
+				sub ("IO_WD2", "0x170", val);
+			} else {
+				# map key names
+				sub ("iomem", "maddr", key);
+				sub ("iosiz", "msize", key);
+			}
+			printf "hint.%s.%s.%s=\"%s\"\n", name, unit, key, val;
+			continue;
+		}
+		printf ("unrecognized config token '%s:%s' on line %s\n",
+			rest, key, NR); # > "/dev/stderr";
+	}
+}