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|
#!/bin/sh
#
# Copyright (c) 2025 The FreeBSD Foundation
#
# This software was developed by Björn Zeeb
# under sponsorship from the FreeBSD Foundation.
#
# SPDX-License-Identifier: BSD-2-Clause
#
# Generate the firmware flavors and files from the WHENCE file in
# linux-firmware.git based on the "MAC" names.
# It is no longer feasible to generate them from the driver as the
# firmware names are fully dynamic and require at least a register
# read on each card. The combinations likely go into the hundreds
# or thousands.
# We still check for the firmware file with the highest API version
# available based on each file name and sort out all the others.
# We also have to sort out the DVM drier parts which we are not
# interested in.
#
FWDIR=${1:-/nonexistent}
DRVNAME=${2:-NODRVNAMEGIVEN}
if test ! -d ${FWDIR} -o ! -r ${FWDIR}/WHENCE; then
printf "Cannot find '%s' or '%s/WHENCE'\n" ${FWDIR} ${FWDIR} >&2
printf "USAGE: %s /path/to/linux-firmware.git rtw8[89]\n" $0 >&2
exit
fi
case "${DRVNAME}" in
NODRVNAMEGIVEN)
printf "USAGE: %s /path/to/linux-firmware.git rtw8[89]\n" $0 >&2
exit
;;
esac
sed -e "s@%%XXX%%@"${DRVNAME}" -.*@g" ../wifi-firmware-kmod/files/WHENCE.awk.in > WHENCE.awk
awk -f WHENCE.awk ${FWDIR}/WHENCE > WHENCE
awk -v FWDIR="${FWDIR}" -v DRVNAME="${DRVNAME}" '
function file_exists(fname)
{
xname = FWDIR "/" DRVNAME "/" fname;
#printf("DEBUG: checking for file %s\n", xname);
if ((getline _ < xname) >= 0) {
return 1;
}
}
function known_in_2arr(arr, idx1, idx2)
{
for (both in arr) {
split(both, sep, SUBSEP);
if (sep[1] == idx1 && sep[2] == idx2) {
return 1;
}
}
return 0;
}
function get_flavor(name)
{
name = tolower(name);
# Remove the file name if in subdir.
gsub("/[^/]*$", "", name);
# Reduce to one level
n = split(name, a, "/")
if (n > 1) {
name = a[1];
}
# Reduce to prefix.
if (name ~ /^rtw/) {
n = split(name, a, "_")
if (n > 1) {
name = a[1];
}
}
# replace special characters
gsub("/", "_", name);
gsub("\\.", "", name);
#printf("FLAVNAME >>%s<<\n", name);
return name;
}
function is_flavor_known(name, n, flavarr)
{
for (f = 1; f <= n ; f++) {
if (flavarr[f] == name)
return 1;
}
return 0;
}
BEGIN {
if (!FWDIR) {
printf "USAGE: -v FWDIR=/path/to/linux-firmware.git\n"
exit
}
flavors_n = 0;
}
{
if (! /^File:/) {
next;
}
gsub("^File: " DRVNAME "/", "");
name=$0
if (!file_exists(name)) {
print "DEBUG :: file does not exist :: " $0;
next;
}
flav = get_flavor($name);
if (DRVNAME == "rtw88" && flav == "readme") {
print "DEBUG :: skipping rtw88 readme :: " $0;
next;
}
if (!is_flavor_known(flav, flavors_n, flavors)) {
flavors[++flavors_n] = flav;
}
fwn[flav]++;
fwname[flav,fwn[flav]] = name;
}
END {
# Sort flavors
for (i = 1; i < length(flavors); i++) {
for (j = i + 1; j <= length(flavors); j++) {
if (flavors[i] > flavors[j]) {
t=flavors[i]
flavors[i]=flavors[j]
flavors[j]=t
}
}
}
printf("FWSUBS=");
for (f = 1; f <= length(flavors); f++) {
if (fwn[flavors[f]] > 0) {
printf(" \\\n\t%s", flavors[f]);
}
}
printf("\n\n");
# Deal with all the firmware flavors:
for (f = 1; f <= length(flavors); f++) {
flav=flavors[f];
#
# Firmware files.
#
if (fwn[flav] > 0) {
if (f > 1) {
printf("\n");
}
printf("DISTFILES_%s+=", flav);
}
# Sort
for (i = 1; i < fwn[flav]; i++) {
for (j = i + 1; j <= fwn[flav]; j++) {
if (fwname[flav,i] > fwname[flav,j]) {
t=fwname[flav,i]
fwname[flav,i]=fwname[flav,j]
fwname[flav,j]=t
}
}
}
# Print
for (i = 1; i <= fwn[flav]; i++) {
printf(" \\\n\t\${FWSUBDIR}/%s\${DISTURL_SUFFIX}", fwname[flav,i]);
}
}
printf("\n");
printf("\n");
printf("DISTFILES_\${FWDRV}=");
for (f = 1; f <= length(flavors); f++) {
if (fwn[flavors[f]] > 0) {
printf(" \\\n\t\${DISTFILES_%s}", flavors[f]);
}
}
printf("\n");
printf("DISTFILES_\${FWDRV}_lic=");
if (DRVNAME == "rtw88") {
printf(" \\\n\t\${FWSUBDIR}/%s\${DISTURL_SUFFIX}", "README");
}
printf("\n");
}' WHENCE
rm -f WHENCE.awk WHENCE
# end
|
