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[build] Construct driver rules for USB devices

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Parse USB_ROM() lines to create build rules to allow for e.g.

  make bin/smsc9500.usb

(i.e. using the driver name as a build target, rather than having to
use the source file name).

Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2026-02-11 17:34:33 +00:00
parent e783adcfd4
commit 99a9e6e431
1 changed files with 43 additions and 18 deletions
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src/util/parserom.pl
+43 -18
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@@ -36,9 +36,9 @@ if ( $debug ) {
my %RE = (
'parse_driver_class' => qr{ drivers/ (\w+?) / }x,
'parse_family' => qr{^ (?:\./)? (.*) \..+? $}x,
'find_rom_line' => qr/^ \s* ( (PCI|ISA)_ROM \s*
'find_rom_line' => qr/^ \s* ( (PCI|ISA|USB)_ROM \s*
\( \s* (.*?) \s* \) \s* ) [,;]/msx,
'extract_pci_id' => qr/^ \s* 0x([0-9A-Fa-f]{4}) \s* ,? \s* (.*) $/sx,
'extract_hex_id' => qr/^ \s* 0x([0-9A-Fa-f]{4}) \s* ,? \s* (.*) $/sx,
'extract_quoted_string' => qr/^ \s* \" ([^\"]*?) \" \s* ,? \s* (.*) $/sx,
);
@@ -117,6 +117,7 @@ sub process_rom_decl {
$state->{'type'} = lc $rom_type;
return process_pci_rom($state, $rom_decl) if $rom_type eq "PCI";
return process_isa_rom($state, $rom_decl) if $rom_type eq "ISA";
return process_usb_rom($state, $rom_decl) if $rom_type eq "USB";
return;
}
@@ -126,16 +127,15 @@ sub process_pci_rom {
my ($state, $decl) = @_;
return unless defined $decl;
return unless length $decl;
(my $vendor, $decl) = extract_pci_id($decl, 'PCI_VENDOR');
(my $device, $decl) = extract_pci_id($decl, 'PCI_DEVICE');
(my $vendor, $decl) = extract_hex_id($decl, 'PCI_VENDOR');
(my $device, $decl) = extract_hex_id($decl, 'PCI_DEVICE');
(my $image, $decl) = extract_quoted_string($decl, 'IMAGE');
(my $desc, $decl) = extract_quoted_string($decl, 'DESCRIPTION');
if ( $vendor and $device and $image and $desc ) {
print_make_rules( $state, "pci", "${vendor}${device}", $desc,
$vendor, $device );
print_make_rules( $state, "pci", $image, $desc, $vendor, $device, 1 );
}
else {
print_make_rules( $state, "${vendor}${device}", $desc,
$vendor, $device );
print_make_rules( $state, $image, $desc, $vendor, $device, 1 );
} else {
log_debug("WARNING", "Malformed PCI_ROM macro on line $. of $state->{source_file}");
}
return 1;
@@ -150,21 +150,41 @@ sub process_isa_rom {
(my $image, $decl) = extract_quoted_string($decl, 'IMAGE');
(my $desc, $decl) = extract_quoted_string($decl, 'DESCRIPTION');
if ( $image and $desc ) {
print_make_rules( $state, "isa", $image, $desc );
print_make_rules( $state, $image, $desc );
} else {
log_debug("WARNING", "Malformed ISA_ROM macro on line $. of $state->{source_file}");
}
else {
log_debug("WARNING", "Malformed ISA_ROM macro on line $. of $state->{source_file}");
return 1;
}
# Extract values from USB_ROM declaration lines and dispatch to
# Makefile rule generator
sub process_usb_rom {
my ($state, $decl) = @_;
return unless defined $decl;
return unless length $decl;
(my $vendor, $decl) = extract_hex_id($decl, 'USB_VENDOR');
(my $device, $decl) = extract_hex_id($decl, 'USB_PRODUCT');
(my $image, $decl) = extract_quoted_string($decl, 'IMAGE');
(my $desc, $decl) = extract_quoted_string($decl, 'DESCRIPTION');
if ( $vendor and $device and $image and $desc ) {
print_make_rules( $state, "${vendor}${device}", $desc,
$vendor, $device );
print_make_rules( $state, $image, $desc, $vendor, $device, 1 );
} else {
log_debug("WARNING", "Malformed USB_ROM macro on line $. of $state->{source_file}");
}
return 1;
}
# Output Makefile rules for the specified ROM declarations
sub print_make_rules {
my ( $state, $bus, $image, $desc, $vendor, $device, $dup ) = @_;
my ( $state, $image, $desc, $vendor, $device, $dup ) = @_;
unless ( $state->{'is_header_printed'} ) {
print "# NIC\t\n";
print "# NIC\tfamily\t$state->{family}\n";
print "DRIVERS_${bus}_$state->{driver_class} += $state->{driver_name}\n";
print "DRIVERS_$state->{type}_$state->{driver_class} ".
"+= $state->{driver_name}\n";
print "DRIVERS += $state->{driver_name}\n";
print "\n";
$state->{'is_header_printed'} = 1;
@@ -175,8 +195,13 @@ sub print_make_rules {
print "DRIVER_$image = $state->{driver_name}\n";
print "ROM_TYPE_$image = $state->{type}\n";
print "ROM_DESCRIPTION_$image = \"$desc\"\n";
print "PCI_VENDOR_$image = 0x$vendor\n" if $vendor;
print "PCI_DEVICE_$image = 0x$device\n" if $device;
if ( $state->{'type'} eq 'pci' ) {
print "PCI_VENDOR_$image = 0x$vendor\n";
print "PCI_DEVICE_$image = 0x$device\n";
} elsif ( $state->{'type'} eq 'usb' ) {
print "USB_VENDOR_$image = 0x$vendor\n";
print "USB_PRODUCT_$image = 0x$device\n";
}
print "ROMS += $image\n" unless $dup;
print "ROMS_$state->{driver_name} += $image\n" unless $dup;
print "\n";
@@ -223,11 +248,11 @@ sub parse_driver_name {
# Extract a PCI vendor/device ID e.g. 0x8086, possibly followed by a comma
# Should always be 4-digit lower-case hex number
sub extract_pci_id {
sub extract_hex_id {
my ($str, $label) = @_;
return "", $str unless defined $str;
return "", $str unless length $str;
if ( $str =~ m/$RE{extract_pci_id}/ ) {
if ( $str =~ m/$RE{extract_hex_id}/ ) {
my $id = lc $1;
log_debug($label, $id);
return $id, $2;