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
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
|
# NOTE: This script is test under Python 3.x
__copyright__ = "Copyright (C) 2020~2021 Nuvoton Technology Corp. All rights reserved"
import sys
import usb.core
import usb.util
import json
import typing
XFER_LEN_CMD = 0x0012
GET_INFO_CMD = 0x0005
class XUsbCom:
def __init__(self, _dev):
self.dev = _dev
self.write_addr = 0x1
self.read_addr = 0x81
self.attach = False
self.id = 0
self.info = b''
def write(self, data) -> None:
try:
# Vendor command set transfer length
self.dev.ctrl_transfer(0x40, 0xA0, wValue=XFER_LEN_CMD, wIndex=len(data), data_or_wLength='')
# Actual data
self.dev.write(self.write_addr, data, timeout=1000)
except usb.core.USBError as err:
sys.exit(err)
def read(self, size) -> bytes:
try:
buf = self.dev.read(self.read_addr, size, timeout=1000)
except usb.core.USBError as err:
sys.exit(err)
return buf
def set_media(self, media) -> None:
try:
# Vendor command set type
self.dev.ctrl_transfer(0x40, 0xB0, wValue=media, wIndex=0, data_or_wLength='')
except usb.core.USBError as err:
sys.exit(err)
return
def get_info(self, data) -> bytes:
try:
self.dev.ctrl_transfer(0x40, 0xB0, wValue=GET_INFO_CMD, wIndex=0, data_or_wLength='')
self.dev.ctrl_transfer(0x40, 0xA0, wValue=XFER_LEN_CMD, wIndex=76, data_or_wLength='')
self.dev.write(0x01, data, timeout=1000)
self.info = self.dev.read(0x81, 76, timeout=1000)
# not used
self.dev.read(0x81, 4, timeout=5000)
except usb.core.USBError as err:
sys.exit(err)
return self.info
def set_id(self, i) -> None:
self.id = i
def get_id(self) -> int:
return self.id
@staticmethod
def set_align(nand, spinand) -> None:
# See if we need to overwrite existing json file.
overwrite = False
try:
with open(".config", "r") as json_file:
cfg = json.load(json_file)
for key in cfg.keys():
if key == 'nand_align':
if nand != int(cfg['nand_align']):
overwrite = True
elif key == 'spinand_align':
if spinand != int(cfg['spinand_align']):
overwrite = True
except (IOError, OSError, json.decoder.JSONDecodeError) as err:
overwrite = True
if overwrite is True:
try:
with open(".config", "w+") as json_file:
new_key = {'nand_align': nand, 'spinand_align': spinand}
json.dump(new_key, json_file)
except (IOError, OSError) as err:
print("Write .config failed. Please re-attach")
sys.exit(err)
@staticmethod
def get_align() -> typing.Tuple[int, int]:
try:
with open(".config", "r") as json_file:
cfg = json.load(json_file)
except (IOError, OSError, json.decoder.JSONDecodeError) as err:
print("Open/parsing .config failed. Please re-attach")
sys.exit(err)
nand_align = spinand_align = 0
for key in cfg.keys():
if key == 'nand_align':
nand_align = int(cfg['nand_align'])
elif key == 'spinand_align':
spinand_align = int(cfg['spinand_align'])
return nand_align, spinand_align
class XUsbComList:
def __init__(self, attach_all=False):
vid = 0x0416
pid = 0x5963
try:
self.devices = list(usb.core.find(idVendor=vid, idProduct=pid,
find_all=True if attach_all is True else False))
except TypeError:
# list will raise exception if there's no device
self.devices = []
return
except usb.core.NoBackendError as err:
sys.exit(err)
if len(self.devices) != 0 and attach_all is False:
# Object type return on attach_all == False is different
self.devices[0] = self.devices[0].device
for dev in self.devices:
try:
dev.set_configuration()
except (usb.core.USBError, NotImplementedError) as err:
sys.exit(err)
for i in range(0, len(self.devices)):
self.devices[i] = XUsbCom(self.devices[i])
self.devices[i].set_id(i)
def __del__(self):
if len(self.devices) != 0:
for dev in self.devices:
try:
usb.util.dispose_resources(dev.dev)
# dev.dev.reset()
dev = None
#except (usb.core.USBError, NotImplementedError) as err:
except usb.core.USBError as err:
sys.exit(err)
self.devices = None
def get_dev(self):
return self.devices
|
