1 files changed, 93 insertions, 0 deletions
diff --git a/jsons/drm_pciids.awk b/jsons/drm_pciids.awk
new file mode 100755
index 0000000..dea8fd2
--- /dev/null
+++ b/jsons/drm_pciids.awk
@@ -0,0 +1,93 @@
+#!/usr/bin/gawk -f
+
+BEGIN {
+	FS=", "
+
+	# NOTE: please edit flags template as well
+	flag_letter["RADEON_IS_MOBILITY"] = "m"
+	flag_letter["RADEON_NEW_MEMMAP"] = "M"
+	flag_letter["RADEON_IS_IGP"] = "i"
+	flag_letter["RADEON_IS_IGPGART"] = "I"
+	flag_letter["RADEON_SINGLE_CRTC"] = "c"
+	flags_template = "mMiIc"
+	first_line = ""
+	printf("{\n")
+}
+
+function error(f, s1, s2) {
+	printf("%s:%d: " f "\n", FILENAME, NR, s1, s2) >"/dev/stderr"
+	error_code = 1
+}
+
+function flag_to_letter(f_name)
+{
+	if (f_name in flag_letter) {
+		return flag_letter[f_name]
+	} else {
+		error("unknown flag %s%s", f_name)
+		return f_name
+	}
+}
+
+function format_flags(f_code,        i, n, l, out) {
+	n = length(flags_template)
+	for (i=1; i<=n; i++) {
+		l = substr(flags_template, i, 1)
+		out = out f_code[l]
+		delete f_code[l]
+	}
+	for (l in f_code) {
+		out = out f_code[l]
+		if (length(l)==1)
+			error("flag \"%s\" missing from flags_template", l, "")
+	}
+	if (length(out)>0) {
+	    out = ",\"" out "\""
+	}
+	return out
+}
+		
+/^[[:blank:]]+{0x/ {
+	sub(/^[[:blank:]]+{/,"")
+	sub(/},[[:blank:]]*\\$/,"")
+
+	id_vendor = $1; sub(/^0x/, "", id_vendor)
+	id_type = $2; sub(/^0x/, "", id_type)
+
+	flags = $7
+
+	if (flags == "0")
+		next
+
+	n_flag_arr = split(flags, flag_arr, "|")
+	first_flag = flag_arr[1]
+	delete f_code
+	for (i=2; i<=n_flag_arr; i++) {
+		l = flag_to_letter(flag_arr[i])
+		f_code[l] = l
+	}
+
+	formatted_flags = format_flags(f_code)
+
+	# second param to gensub is the replacement text:
+	chip_type = tolower(gensub(/^CHIP_/, "", "", first_flag))
+
+    if (length(first_line) > 0) {
+        printf(",\n")
+    } else {
+        first_line = "TRUE"
+    }
+	if ((chip_type in types) && types[chip_type] != first_flag)
+		error("chip name collision: %s vs. %s", \
+			types[chip_type], first_flag)
+
+	types[chip_type] = first_flag
+
+	printf("\t\"%s,%s\":[\"%s\"%s]", toupper(id_vendor), toupper(id_type),\
+	    chip_type, formatted_flags)
+}
+
+END {
+    printf("\n}\n")
+	exit error_code
+}