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rtl8195am - cleanup post-processing binary hook 

Preparing for bootloader redesign.

Signed-off-by: Tony Wu <tung7970@gmail.com>
pull/5634/head
Tony Wu 2017-11-10 22:52:14 +08:00 committed by adbridge
parent a412131235
commit 2d23e98ef7
1 changed files with 35 additions and 34 deletions
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59
tools/targets/REALTEK_RTL8195AM.py
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@ -18,22 +18,25 @@ RAM2_VER = 0x8195FFFF00000000
RAM2_TAG = 0x81950001
RAM2_SHA = '0'
def write_fixed_width_string(value, width, output):
# cut string to list & reverse
line = [value[i:i+2] for i in range(0, len(value), 2)]
output.write("".join([chr(long(b, 16)) for b in line]))
def write_fixed_width_value(value, width, output):
def format_number(number, width):
# convert to string
line = format(value, '0%dx' % (width))
line = format(number, '0%dx' % (width))
if len(line) > width:
print "[ERROR] value 0x%s cannot fit width %d" % (line, width)
print "[ERROR] 0x%s cannot fit in width %d" % (line, width)
sys.exit(-1)
# cut string to list & reverse
line = [line[i:i+2] for i in range(0, len(line), 2)]
line.reverse()
# convert to write buffer
output.write("".join([chr(long(b, 16)) for b in line]))
return binascii.a2b_hex("".join(line))
def format_string(string):
return binascii.a2b_hex(string)
def write_number(value, width, output):
output.write(format_number(value, width))
def write_string(value, width, output):
output.write(format_string(value))
def append_image_file(image, output):
input = open(image, "rb")
@ -69,27 +72,27 @@ def prepend(image, entry, segment, image_ram2, image_ota):
# parse input arguments
output = open(image_ram2, "wb")
write_fixed_width_value(os.stat(image).st_size, 8, output)
write_fixed_width_value(int(entry), 8, output)
write_fixed_width_value(int(segment), 8, output)
write_number(os.stat(image).st_size, 8, output)
write_number(int(entry), 8, output)
write_number(int(segment), 8, output)
RAM2_SHA = sha256_checksum(image)
write_fixed_width_value(RAM2_TAG, 8, output)
write_fixed_width_value(get_version_by_time(), 16, output)
write_fixed_width_string(RAM2_SHA, 64, output)
write_fixed_width_value(RAM2_RSVD, 8, output)
write_number(RAM2_TAG, 8, output)
write_number(get_version_by_time(), 16, output)
write_string(RAM2_SHA, 64, output)
write_number(RAM2_RSVD, 8, output)
append_image_file(image, output)
output.close()
ota = open(image_ota, "wb")
write_fixed_width_value(os.stat(image).st_size, 8, ota)
write_fixed_width_value(int(entry), 8, ota)
write_fixed_width_value(int(segment), 8, ota)
write_fixed_width_value(0xFFFFFFFF, 8, ota)
write_fixed_width_value(get_version_by_time(), 16, ota)
write_fixed_width_string(RAM2_SHA, 64, ota)
write_fixed_width_value(RAM2_RSVD, 8, ota)
write_number(os.stat(image).st_size, 8, ota)
write_number(int(entry), 8, ota)
write_number(int(segment), 8, ota)
write_number(0xFFFFFFFF, 8, ota)
write_number(get_version_by_time(), 16, ota)
write_string(RAM2_SHA, 64, ota)
write_number(RAM2_RSVD, 8, ota)
append_image_file(image, ota)
ota.close()
@ -218,8 +221,6 @@ def parse_load_segment_iar(image_elf):
offset = int(segment[2][2:], 16)
addr = int(segment[3][2:], 16)
size = int(segment[5][2:], 16)
if addr < 0x10007000:
continue
if addr != 0 and size != 0:
segment_list.append((offset, addr, size))
return segment_list
@ -240,14 +241,14 @@ def write_load_segment(image_elf, image_bin, segment):
for (offset, addr, size) in segment:
file_elf.seek(offset)
# write image header - size & addr
write_fixed_width_value(addr, 8, file_bin)
write_fixed_width_value(size, 8, file_bin)
write_number(addr, 8, file_bin)
write_number(size, 8, file_bin)
# write load segment
file_bin.write(file_elf.read(size))
delta = size % 4
if delta != 0:
padding = 4 - delta
write_fixed_width_value(0x0, padding * 2, file_bin)
write_number(0x0, padding * 2, file_bin)
file_bin.close()
file_elf.close()