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compress firmwares, reduce driver size
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
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@@ -5,3 +5,4 @@ xcuserdata | |
| xcshareddata | ||
| project.xcworkspace | ||
| FwBinary.cpp | ||
| *.pyc | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,40 @@ | ||
| // | ||
| // zutil.c | ||
| // itlwm | ||
| // | ||
| // Created by qcwap on 2020/9/4. | ||
| // Copyright © 2020 钟先耀. All rights reserved. | ||
| // | ||
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| #include "zutil.h" | ||
| extern "C" { | ||
| typedef struct z_mem | ||
| { | ||
| UInt32 alloc_size; | ||
| UInt8 data[0]; | ||
| } z_mem; | ||
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| void *zcalloc(void *opaque, uint items, uint size) | ||
| { | ||
| void* result = NULL; | ||
| z_mem* zmem = NULL; | ||
| UInt32 allocSize = items * size + sizeof(zmem); | ||
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| zmem = (z_mem*)IOMalloc(allocSize); | ||
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| if (zmem) | ||
| { | ||
| zmem->alloc_size = allocSize; | ||
| result = (void*)&(zmem->data); | ||
| } | ||
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| return result; | ||
| } | ||
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| void zcfree(void *opaque, void *ptr) | ||
| { | ||
| UInt32* skipper = (UInt32 *)ptr - 1; | ||
| z_mem* zmem = (z_mem*)skipper; | ||
| IOFree((void*)zmem, zmem->alloc_size); | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,21 @@ | ||
| // | ||
| // zutil.h | ||
| // itlwm | ||
| // | ||
| // Created by qcwap on 2020/9/4. | ||
| // Copyright © 2020 钟先耀. All rights reserved. | ||
| // | ||
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| #ifndef zutil_h | ||
| #define zutil_h | ||
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| #include <IOKit/IOLib.h> | ||
| #include <IOKit/IOTypes.h> | ||
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| extern "C" { | ||
| void *zcalloc(void *opaque, uint items, uint size); | ||
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| void zcfree(void *opaque, void *ptr); | ||
| } | ||
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| #endif /* zutil_h */ |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,21 @@ | ||
| #!/bin/sh | ||
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| # fw_gen.sh | ||
| # itlwm | ||
| # | ||
| # Created by qcwap on 2020/3/10. | ||
| # Copyright © 2020 钟先耀. All rights reserved. | ||
| target_file="${PROJECT_DIR}/include/FwBinary.cpp" | ||
| while [ $# -gt 0 ]; | ||
| do | ||
| case $1 in | ||
| -P) fw_files=$2 | ||
| shift | ||
| ;; | ||
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| esac | ||
| shift | ||
| done | ||
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| script_file="${PROJECT_DIR}/scripts/" | ||
| python -c 'import sys;sys.path.append("'$script_file'");from zlib_compress_fw import *;process_files("'${target_file}'", "'$fw_files'")' |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,97 @@ | ||
| #!/usr/bin/python | ||
| # -*- coding: utf-8 -*- | ||
| # zlib_compress_fw.py | ||
| # | ||
| # Created by qcwap on 2020/9/3. | ||
| # Copyright © 2020 钟先耀. All rights reserved. | ||
|
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| import zlib | ||
| import os | ||
| import struct | ||
|
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| copyright = ''' | ||
| // itlwm | ||
| // | ||
| // Copyright © 2020 钟先耀. All rights reserved. | ||
| #include "FwData.h" | ||
| ''' | ||
|
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| def compress(data): | ||
| return zlib.compress(data) | ||
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| def format_file_name(file_name): | ||
| return file_name.replace(".", "_").replace("-", "_") | ||
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| def write_single_file(target_file, path, file): | ||
| src_file = open(path, "rb") | ||
| src_data = src_file.read() | ||
| src_data = compress(src_data) | ||
| src_len = len(src_data) | ||
|
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| fw_var_name = format_file_name(file) | ||
| target_file.write("\nconst unsigned char ") | ||
| target_file.write(fw_var_name) | ||
| target_file.write("[] = {") | ||
| index = 0; | ||
| block = [] | ||
| while True: | ||
| if index + 16 >= src_len: | ||
| block = src_data[index:] | ||
| else: | ||
| block = src_data[index:index + 16] | ||
| index += 16; | ||
| if len(block) < 16: | ||
| if len(block): | ||
| for b in block: | ||
| if type(b) is str: | ||
| b = ord(b) | ||
| target_file.write("0x{:02X}, ".format(b)) | ||
| target_file.write("\n") | ||
| break | ||
| target_file.write("0x{:02X}, 0x{:02X}, 0x{:02X}, 0x{:02X}, " | ||
| "0x{:02X}, 0x{:02X}, 0x{:02X}, 0x{:02X}, " | ||
| "0x{:02X}, 0x{:02X}, 0x{:02X}, 0x{:02X}, " | ||
| "0x{:02X}, 0x{:02X}, 0x{:02X}, 0x{:02X},\n" | ||
| .format(*struct.unpack("BBBBBBBBBBBBBBBB", block))) | ||
| target_file.write("};\n") | ||
| target_file.write("const long int ") | ||
| target_file.write(fw_var_name) | ||
| target_file.write("_size = sizeof(") | ||
| target_file.write(fw_var_name) | ||
| target_file.write(");\n") | ||
| src_file.close() | ||
|
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| def process_files(target_file, dir): | ||
| if not os.path.exists(target_file): | ||
| if not os.path.exists(os.path.dirname(target_file)): | ||
| os.mkdirs(os.path.dirname(target_file)) | ||
| target_file_handle = open(target_file, "w") | ||
| target_file_handle.write(copyright) | ||
| for root, dirs, files in os.walk(dir): | ||
| for file in files: | ||
| path = os.path.join(root, file) | ||
| write_single_file(target_file_handle, path, file) | ||
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| target_file_handle.write("\n") | ||
| target_file_handle.write("const struct FwDesc fwList[] = {") | ||
|
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| for file in files: | ||
| target_file_handle.write('{IWL_FW("') | ||
| target_file_handle.write(file) | ||
| target_file_handle.write('", ') | ||
| fw_var_name = format_file_name(file) | ||
| target_file_handle.write(fw_var_name) | ||
| target_file_handle.write(", ") | ||
| target_file_handle.write(fw_var_name) | ||
| target_file_handle.write("_size)},\n") | ||
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| target_file_handle.write("};\n") | ||
| target_file_handle.write("const int fwNumber = ") | ||
| target_file_handle.write(str(len(files))) | ||
| target_file_handle.write(";\n") | ||
|
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| target_file_handle.close() | ||
|
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| if __name__ == '__main__': | ||
| print compress("test"); |