blob: f96935bf59e2096ed942eb0a14e6ae8c33e4b502 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
|
PART_NAME=firmware
# $(1): file to read magic from
# $(2): offset in bytes
get_magic_long_at() {
dd if="$1" skip=$2 bs=1 count=4 2>/dev/null | hexdump -v -n 4 -e '1/1 "%02x"'
}
brcm47xx_identify() {
local magic
magic=$(get_magic_long "$1")
case "$magic" in
"48445230")
echo "trx"
return
;;
"2a23245e")
echo "chk"
return
;;
esac
magic=$(get_magic_long_at "$1" 14)
[ "$magic" = "55324e44" ] && {
echo "cybertan"
return
}
echo "unknown"
}
platform_check_image() {
[ "$#" -gt 1 ] && return 1
local file_type=$(brcm47xx_identify "$1")
local magic
case "$file_type" in
"chk")
local header_len=$((0x$(get_magic_long_at "$1" 4)))
local board_id_len=$(($header_len - 40))
local board_id=$(dd if="$1" skip=40 bs=1 count=$board_id_len 2>/dev/null | hexdump -v -e '1/1 "%c"')
echo "Found CHK image with device board_id $board_id"
magic=$(get_magic_long_at "$1" "$header_len")
[ "$magic" != "48445230" ] && {
echo "No valid TRX firmware in the CHK image"
return 1
}
return 0
;;
"cybertan")
magic=$(dd if="$1" bs=1 count=4 2>/dev/null | hexdump -v -e '1/1 "%c"')
echo "Found CyberTAN image with device magic: $magic"
magic=$(get_magic_long_at "$1" 32)
[ "$magic" != "48445230" ] && {
echo "No valid TRX firmware in the CyberTAN image"
return 1
}
return 0
;;
"trx")
return 0
;;
*)
echo "Invalid image type. Please use only .trx files"
return 1
;;
esac
}
platform_do_upgrade_chk() {
local header_len=$((0x$(get_magic_long_at "$1" 4)))
local trx="/tmp/$1.trx"
dd if="$1" of="$trx" bs=$header_len skip=1
shift
default_do_upgrade "$trx" "$@"
}
platform_do_upgrade_cybertan() {
local trx="/tmp/$1.trx"
dd if="$1" of="$trx" bs=32 skip=1
shift
default_do_upgrade "$trx" "$@"
}
platform_do_upgrade() {
local file_type=$(brcm47xx_identify "$1")
case "$file_type" in
"chk") platform_do_upgrade_chk "$ARGV";;
"cybertan") platform_do_upgrade_cybertan "$ARGV";;
*) default_do_upgrade "$ARGV";;
esac
}
|
