OVMS3-idf/components/efuse/efuse_table_gen.py

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#!/usr/bin/env python
#
# ESP32 efuse table generation tool
#
# Converts efuse table to header file efuse_table.h.
#
# Copyright 2017-2018 Espressif Systems (Shanghai) PTE LTD
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http:#www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from __future__ import print_function, division
import argparse
import os
import re
import sys
import hashlib
__version__ = '1.0'
quiet = False
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max_blk_len = 256
idf_target = "esp32"
copyright = '''// Copyright 2017-2018 Espressif Systems (Shanghai) PTE LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at",
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License
'''
def status(msg):
""" Print status message to stderr """
if not quiet:
critical(msg)
def critical(msg):
""" Print critical message to stderr """
sys.stderr.write(msg)
sys.stderr.write('\n')
class FuseTable(list):
def __init__(self):
super(FuseTable, self).__init__(self)
self.md5_digest_table = ""
@classmethod
def from_csv(cls, csv_contents):
res = FuseTable()
lines = csv_contents.splitlines()
def expand_vars(f):
f = os.path.expandvars(f)
m = re.match(r'(?<!\\)\$([A-Za-z_][A-Za-z0-9_]*)', f)
if m:
raise InputError("unknown variable '%s'" % (m.group(1)))
return f
for line_no in range(len(lines)):
line = expand_vars(lines[line_no]).strip()
if line.startswith("#") or len(line) == 0:
continue
try:
res.append(FuseDefinition.from_csv(line))
except InputError as e:
raise InputError("Error at line %d: %s" % (line_no + 1, e))
except Exception:
critical("Unexpected error parsing line %d: %s" % (line_no + 1, line))
raise
# fix up missing bit_start
last_efuse_block = None
for e in res:
if last_efuse_block != e.efuse_block:
last_end = 0
if e.bit_start is None:
e.bit_start = last_end
last_end = e.bit_start + e.bit_count
last_efuse_block = e.efuse_block
res.verify_duplicate_name()
# fix up missing field_name
last_field = None
for e in res:
if e.field_name == "" and last_field is None:
raise InputError("Error at line %d: %s missing field name" % (line_no + 1, e))
elif e.field_name == "" and last_field is not None:
e.field_name = last_field.field_name
last_field = e
# fill group
names = [p.field_name for p in res]
duplicates = set(n for n in names if names.count(n) > 1)
if len(duplicates) != 0:
i_count = 0
for p in res:
if len(duplicates.intersection([p.field_name])) != 0:
p.group = str(i_count)
i_count += 1
else:
i_count = 0
res.verify_duplicate_name()
# clac md5 for table
res.calc_md5()
return res
def verify_duplicate_name(self):
# check on duplicate name
names = [p.field_name for p in self]
duplicates = set(n for n in names if names.count(n) > 1)
# print sorted duplicate partitions by name
if len(duplicates) != 0:
fl_error = False
for p in self:
field_name = p.field_name + p.group
if field_name != "" and len(duplicates.intersection([field_name])) != 0:
fl_error = True
print("Field at %s, %s, %s, %s have dublicate field_name" %
(p.field_name, p.efuse_block, p.bit_start, p.bit_count))
if fl_error is True:
raise InputError("Field names must be unique")
def verify(self, type_table=None):
for p in self:
p.verify(type_table)
self.verify_duplicate_name()
# check for overlaps
last = None
for p in sorted(self, key=lambda x:(x.efuse_block, x.bit_start)):
if last is not None and last.efuse_block == p.efuse_block and p.bit_start < last.bit_start + last.bit_count:
raise InputError("Field at %s, %s, %s, %s overlaps %s, %s, %s, %s" %
(p.field_name, p.efuse_block, p.bit_start, p.bit_count,
last.field_name, last.efuse_block, last.bit_start, last.bit_count))
last = p
def calc_md5(self):
txt_table = ''
for p in self:
txt_table += "%s %s %d %s %s" % (p.field_name, p.efuse_block, p.bit_start, str(p.get_bit_count()), p.comment) + "\n"
self.md5_digest_table = hashlib.md5(txt_table.encode('utf-8')).hexdigest()
def show_range_used_bits(self):
# print used and free bits
rows = ''
rows += 'Sorted efuse table:\n'
num = 1
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rows += "{0} \t{1:<30} \t{2} \t{3} \t{4}".format("#", "field_name", "efuse_block", "bit_start", "bit_count") + "\n"
for p in sorted(self, key=lambda x:(x.efuse_block, x.bit_start)):
rows += "{0} \t{1:<30} \t{2} \t{3:^8} \t{4:^8}".format(num, p.field_name, p.efuse_block, p.bit_start, p.bit_count) + "\n"
num += 1
rows += '\nUsed bits in efuse table:\n'
last = None
for p in sorted(self, key=lambda x:(x.efuse_block, x.bit_start)):
if last is None:
rows += '%s \n[%d ' % (p.efuse_block, p.bit_start)
if last is not None:
if last.efuse_block != p.efuse_block:
rows += '%d] \n\n%s \n[%d ' % (last.bit_start + last.bit_count - 1, p.efuse_block, p.bit_start)
elif last.bit_start + last.bit_count != p.bit_start:
rows += '%d] [%d ' % (last.bit_start + last.bit_count - 1, p.bit_start)
last = p
rows += '%d] \n' % (last.bit_start + last.bit_count - 1)
rows += '\nNote: Not printed ranges are free for using. (bits in EFUSE_BLK0 are reserved for Espressif)\n'
return rows
def get_str_position_last_free_bit_in_blk(self, blk):
last_used_bit = 0
for p in self:
if p.efuse_block == blk:
if p.define is not None:
return p.get_bit_count()
else:
if last_used_bit < p.bit_start + p.bit_count:
last_used_bit = p.bit_start + p.bit_count
if last_used_bit == 0:
return None
return str(last_used_bit)
def to_header(self, file_name):
rows = [copyright]
rows += ["#ifdef __cplusplus",
'extern "C" {',
"#endif",
"",
"",
"// md5_digest_table " + self.md5_digest_table,
"// This file was generated from the file " + file_name + ".csv. DO NOT CHANGE THIS FILE MANUALLY.",
"// If you want to change some fields, you need to change " + file_name + ".csv file",
"// then run `efuse_common_table` or `efuse_custom_table` command it will generate this file.",
"// To show efuse_table run the command 'show_efuse_table'.",
"",
""]
last_field_name = ''
for p in self:
if (p.field_name != last_field_name):
rows += ["extern const esp_efuse_desc_t* " + "ESP_EFUSE_" + p.field_name + "[];"]
last_field_name = p.field_name
rows += ["",
"#ifdef __cplusplus",
"}",
"#endif",
""]
return '\n'.join(rows) + "\n"
def to_c_file(self, file_name, debug):
rows = [copyright]
rows += ['#include "sdkconfig.h"',
'#include "esp_efuse.h"',
'#include <assert.h>',
'#include "' + file_name + '.h"',
"",
"// md5_digest_table " + self.md5_digest_table,
"// This file was generated from the file " + file_name + ".csv. DO NOT CHANGE THIS FILE MANUALLY.",
"// If you want to change some fields, you need to change " + file_name + ".csv file",
"// then run `efuse_common_table` or `efuse_custom_table` command it will generate this file.",
"// To show efuse_table run the command 'show_efuse_table'."]
rows += [""]
if idf_target == "esp32":
rows += ["#define MAX_BLK_LEN CONFIG_EFUSE_MAX_BLK_LEN"]
rows += [""]
last_free_bit_blk1 = self.get_str_position_last_free_bit_in_blk("EFUSE_BLK1")
last_free_bit_blk2 = self.get_str_position_last_free_bit_in_blk("EFUSE_BLK2")
last_free_bit_blk3 = self.get_str_position_last_free_bit_in_blk("EFUSE_BLK3")
rows += ["// The last free bit in the block is counted over the entire file."]
if last_free_bit_blk1 is not None:
rows += ["#define LAST_FREE_BIT_BLK1 " + last_free_bit_blk1]
if last_free_bit_blk2 is not None:
rows += ["#define LAST_FREE_BIT_BLK2 " + last_free_bit_blk2]
if last_free_bit_blk3 is not None:
rows += ["#define LAST_FREE_BIT_BLK3 " + last_free_bit_blk3]
rows += [""]
if last_free_bit_blk1 is not None:
rows += ['_Static_assert(LAST_FREE_BIT_BLK1 <= MAX_BLK_LEN, "The eFuse table does not match the coding scheme. '
'Edit the table and restart the efuse_common_table or efuse_custom_table command to regenerate the new files.");']
if last_free_bit_blk2 is not None:
rows += ['_Static_assert(LAST_FREE_BIT_BLK2 <= MAX_BLK_LEN, "The eFuse table does not match the coding scheme. '
'Edit the table and restart the efuse_common_table or efuse_custom_table command to regenerate the new files.");']
if last_free_bit_blk3 is not None:
rows += ['_Static_assert(LAST_FREE_BIT_BLK3 <= MAX_BLK_LEN, "The eFuse table does not match the coding scheme. '
'Edit the table and restart the efuse_common_table or efuse_custom_table command to regenerate the new files.");']
rows += [""]
last_name = ''
for p in self:
if (p.field_name != last_name):
if last_name != '':
rows += ["};\n"]
rows += ["static const esp_efuse_desc_t " + p.field_name + "[] = {"]
last_name = p.field_name
rows += [p.to_struct(debug) + ","]
rows += ["};\n"]
rows += ["\n\n\n"]
last_name = ''
for p in self:
if (p.field_name != last_name):
if last_name != '':
rows += [" NULL",
"};\n"]
rows += ["const esp_efuse_desc_t* " + "ESP_EFUSE_" + p.field_name + "[] = {"]
last_name = p.field_name
index = str(0) if str(p.group) == "" else str(p.group)
rows += [" &" + p.field_name + "[" + index + "], \t\t// " + p.comment]
rows += [" NULL",
"};\n"]
return '\n'.join(rows) + "\n"
class FuseDefinition(object):
def __init__(self):
self.field_name = ""
self.group = ""
self.efuse_block = ""
self.bit_start = None
self.bit_count = None
self.define = None
self.comment = ""
@classmethod
def from_csv(cls, line):
""" Parse a line from the CSV """
line_w_defaults = line + ",,,," # lazy way to support default fields
fields = [f.strip() for f in line_w_defaults.split(",")]
res = FuseDefinition()
res.field_name = fields[0]
res.efuse_block = res.parse_block(fields[1])
res.bit_start = res.parse_num(fields[2])
res.bit_count = res.parse_bit_count(fields[3])
if res.bit_count is None or res.bit_count == 0:
raise InputError("Field bit_count can't be empty")
res.comment = fields[4]
return res
def parse_num(self, strval):
if strval == "":
return None # Field will fill in default
return self.parse_int(strval)
def parse_bit_count(self, strval):
if strval == "MAX_BLK_LEN":
self.define = strval
return self.get_max_bits_of_block()
else:
return self.parse_num(strval)
def parse_int(self, v):
try:
return int(v, 0)
except ValueError:
raise InputError("Invalid field value %s" % v)
def parse_block(self, strval):
if strval == "":
raise InputError("Field 'efuse_block' can't be left empty.")
if idf_target == "esp32":
if strval not in ["EFUSE_BLK0", "EFUSE_BLK1", "EFUSE_BLK2", "EFUSE_BLK3"]:
raise InputError("Field 'efuse_block' should be one of EFUSE_BLK0..EFUSE_BLK3")
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if idf_target == "esp32s2":
if strval not in ["EFUSE_BLK0", "EFUSE_BLK1", "EFUSE_BLK2", "EFUSE_BLK3", "EFUSE_BLK4",
"EFUSE_BLK5", "EFUSE_BLK6", "EFUSE_BLK7", "EFUSE_BLK8", "EFUSE_BLK9",
"EFUSE_BLK10"]:
raise InputError("Field 'efuse_block' should be one of EFUSE_BLK0..EFUSE_BLK10")
return strval
def get_max_bits_of_block(self):
'''common_table: EFUSE_BLK0, EFUSE_BLK1, EFUSE_BLK2, EFUSE_BLK3
custom_table: ----------, ----------, ----------, EFUSE_BLK3(some reserved in common_table)
'''
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if self.efuse_block == "EFUSE_BLK0":
return 256
else:
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return max_blk_len
def verify(self, type_table):
if self.efuse_block is None:
raise ValidationError(self, "efuse_block field is not set")
if self.bit_count is None:
raise ValidationError(self, "bit_count field is not set")
if type_table is not None:
if type_table == "custom_table":
if self.efuse_block != "EFUSE_BLK3":
raise ValidationError(self, "custom_table should use only EFUSE_BLK3")
max_bits = self.get_max_bits_of_block()
if self.bit_start + self.bit_count > max_bits:
raise ValidationError(self, "The field is outside the boundaries(max_bits = %d) of the %s block" % (max_bits, self.efuse_block))
def get_full_name(self):
def get_postfix(group):
postfix = ""
if group != "":
postfix = "_PART_" + group
return postfix
return self.field_name + get_postfix(self.group)
def get_bit_count(self, check_define=True):
if check_define is True and self.define is not None:
return self.define
else:
return self.bit_count
def to_struct(self, debug):
start = " {"
if debug is True:
start = " {" + '"' + self.field_name + '" ,'
return ", ".join([start + self.efuse_block,
str(self.bit_start),
str(self.get_bit_count()) + "}, \t // " + self.comment])
def process_input_file(file, type_table):
status("Parsing efuse CSV input file " + file.name + " ...")
input = file.read()
table = FuseTable.from_csv(input)
status("Verifying efuse table...")
table.verify(type_table)
return table
def ckeck_md5_in_file(md5, filename):
if os.path.exists(filename):
with open(filename, 'r') as f:
for line in f:
if md5 in line:
return True
return False
def create_output_files(name, output_table, debug):
file_name = os.path.splitext(os.path.basename(name))[0]
gen_dir = os.path.dirname(name)
dir_for_file_h = gen_dir + "/include"
try:
os.stat(dir_for_file_h)
except Exception:
os.mkdir(dir_for_file_h)
file_h_path = os.path.join(dir_for_file_h, file_name + ".h")
file_c_path = os.path.join(gen_dir, file_name + ".c")
# src files are the same
if ckeck_md5_in_file(output_table.md5_digest_table, file_c_path) is False:
status("Creating efuse *.h file " + file_h_path + " ...")
output = output_table.to_header(file_name)
with open(file_h_path, 'w') as f:
f.write(output)
status("Creating efuse *.c file " + file_c_path + " ...")
output = output_table.to_c_file(file_name, debug)
with open(file_c_path, 'w') as f:
f.write(output)
else:
print("Source files do not require updating correspond to csv file.")
def main():
global quiet
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global max_blk_len
global idf_target
parser = argparse.ArgumentParser(description='ESP32 eFuse Manager')
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parser.add_argument('--idf_target', '-t', help='Target chip type', choices=['esp32','esp32s2'], default='esp32')
parser.add_argument('--quiet', '-q', help="Don't print non-critical status messages to stderr", action='store_true')
parser.add_argument('--debug', help='Create header file with debug info', default=False, action="store_false")
parser.add_argument('--info', help='Print info about range of used bits', default=False, action="store_true")
parser.add_argument('--max_blk_len', help='Max number of bits in BLOCKs', type=int, default=256)
parser.add_argument('common_input', help='Path to common CSV file to parse.', type=argparse.FileType('r'))
parser.add_argument('custom_input', help='Path to custom CSV file to parse.', type=argparse.FileType('r'), nargs='?', default=None)
args = parser.parse_args()
idf_target = args.idf_target
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max_blk_len = args.max_blk_len
print("Max number of bits in BLK %d" % (max_blk_len))
if max_blk_len not in [256, 192, 128]:
raise InputError("Unsupported block length = %d" % (max_blk_len))
quiet = args.quiet
debug = args.debug
info = args.info
common_table = process_input_file(args.common_input, "common_table")
two_table = common_table
if args.custom_input is not None:
custom_table = process_input_file(args.custom_input, "custom_table")
two_table += custom_table
two_table.verify()
# save files.
if info is False:
if args.custom_input is None:
create_output_files(args.common_input.name, common_table, debug)
else:
create_output_files(args.custom_input.name, custom_table, debug)
else:
print(two_table.show_range_used_bits())
return 0
class InputError(RuntimeError):
def __init__(self, e):
super(InputError, self).__init__(e)
class ValidationError(InputError):
def __init__(self, p, message):
super(ValidationError, self).__init__("Entry %s invalid: %s" % (p.field_name, message))
if __name__ == '__main__':
try:
main()
except InputError as e:
print(e, file=sys.stderr)
sys.exit(2)