acrn-hypervisor/misc/config_tools/board_config/pci_devices_h.py

67 lines
2.1 KiB
Python

# Copyright (C) 2019 Intel Corporation. All rights reserved.
#
# SPDX-License-Identifier: BSD-3-Clause
#
import collections
import board_cfg_lib
import common
PCI_HEADER = r"""
#ifndef PCI_DEVICES_H_
#define PCI_DEVICES_H_"""
PCI_END_HEADER = r"""
#endif /* PCI_DEVICES_H_ */"""
def write_pbdf(i_cnt, bdf, bar_attr, config):
"""
Parser and generate pbdf
:param i_cnt: the number of pci devices have the same PCI sub class name
:param bdf: it is a string what contains BDF
:param bar_attr: it is a class, contains PIC bar attribute
:param config: it is a file pointer of pci information for writing to
"""
tmp_sub_name = board_cfg_lib.get_sub_pci_name(i_cnt, bar_attr)
board_cfg_lib.PCI_DEV_BAR_DESC.pci_dev_dic[bdf].name_w_i_cnt = tmp_sub_name
bus = int(bdf.split(':')[0], 16)
dev = int(bdf.split(':')[1].split('.')[0], 16)
fun = int(bdf.split('.')[1], 16)
print("#define %-32s" % tmp_sub_name, end="", file=config)
print(" .pbdf.bits = {{.b = 0x{:02X}U, .d = 0x{:02X}U, .f = 0x{:02X}U}}".format(
bus, dev, fun), file=config)
def generate_file(config):
"""
Get PCI device and generate pci_devices.h
:param config: it is a file pointer of pci information for writing to
"""
# write the license into pci
print("{0}".format(board_cfg_lib.HEADER_LICENSE), file=config)
# add bios and base board info
board_cfg_lib.handle_bios_info(config)
# write the header into pci
print("{0}".format(PCI_HEADER), file=config)
board_cfg_lib.parser_pci()
compared_bdf = []
for cnt_sub_name in board_cfg_lib.SUB_NAME_COUNT.keys():
i_cnt = 0
for bdf, bar_attr in board_cfg_lib.PCI_DEV_BAR_DESC.pci_dev_dic.items():
if cnt_sub_name == bar_attr.name and bdf not in compared_bdf:
compared_bdf.append(bdf)
else:
continue
print("",file=config)
write_pbdf(i_cnt, bdf, bar_attr, config)
i_cnt += 1
# write the end to the pci devices
print("{0}".format(PCI_END_HEADER), file=config)