mirror of
https://github.com/NaitLee/Cat-Printer.git
synced 2025-05-16 07:10:30 -07:00
205 lines
8.0 KiB
Python
205 lines
8.0 KiB
Python
import asyncio
|
|
from bleak import BleakClient
|
|
import sys, os, io
|
|
|
|
crc8_table = [
|
|
0x00, 0x07, 0x0e, 0x09, 0x1c, 0x1b, 0x12, 0x15, 0x38, 0x3f, 0x36, 0x31,
|
|
0x24, 0x23, 0x2a, 0x2d, 0x70, 0x77, 0x7e, 0x79, 0x6c, 0x6b, 0x62, 0x65,
|
|
0x48, 0x4f, 0x46, 0x41, 0x54, 0x53, 0x5a, 0x5d, 0xe0, 0xe7, 0xee, 0xe9,
|
|
0xfc, 0xfb, 0xf2, 0xf5, 0xd8, 0xdf, 0xd6, 0xd1, 0xc4, 0xc3, 0xca, 0xcd,
|
|
0x90, 0x97, 0x9e, 0x99, 0x8c, 0x8b, 0x82, 0x85, 0xa8, 0xaf, 0xa6, 0xa1,
|
|
0xb4, 0xb3, 0xba, 0xbd, 0xc7, 0xc0, 0xc9, 0xce, 0xdb, 0xdc, 0xd5, 0xd2,
|
|
0xff, 0xf8, 0xf1, 0xf6, 0xe3, 0xe4, 0xed, 0xea, 0xb7, 0xb0, 0xb9, 0xbe,
|
|
0xab, 0xac, 0xa5, 0xa2, 0x8f, 0x88, 0x81, 0x86, 0x93, 0x94, 0x9d, 0x9a,
|
|
0x27, 0x20, 0x29, 0x2e, 0x3b, 0x3c, 0x35, 0x32, 0x1f, 0x18, 0x11, 0x16,
|
|
0x03, 0x04, 0x0d, 0x0a, 0x57, 0x50, 0x59, 0x5e, 0x4b, 0x4c, 0x45, 0x42,
|
|
0x6f, 0x68, 0x61, 0x66, 0x73, 0x74, 0x7d, 0x7a, 0x89, 0x8e, 0x87, 0x80,
|
|
0x95, 0x92, 0x9b, 0x9c, 0xb1, 0xb6, 0xbf, 0xb8, 0xad, 0xaa, 0xa3, 0xa4,
|
|
0xf9, 0xfe, 0xf7, 0xf0, 0xe5, 0xe2, 0xeb, 0xec, 0xc1, 0xc6, 0xcf, 0xc8,
|
|
0xdd, 0xda, 0xd3, 0xd4, 0x69, 0x6e, 0x67, 0x60, 0x75, 0x72, 0x7b, 0x7c,
|
|
0x51, 0x56, 0x5f, 0x58, 0x4d, 0x4a, 0x43, 0x44, 0x19, 0x1e, 0x17, 0x10,
|
|
0x05, 0x02, 0x0b, 0x0c, 0x21, 0x26, 0x2f, 0x28, 0x3d, 0x3a, 0x33, 0x34,
|
|
0x4e, 0x49, 0x40, 0x47, 0x52, 0x55, 0x5c, 0x5b, 0x76, 0x71, 0x78, 0x7f,
|
|
0x6a, 0x6d, 0x64, 0x63, 0x3e, 0x39, 0x30, 0x37, 0x22, 0x25, 0x2c, 0x2b,
|
|
0x06, 0x01, 0x08, 0x0f, 0x1a, 0x1d, 0x14, 0x13, 0xae, 0xa9, 0xa0, 0xa7,
|
|
0xb2, 0xb5, 0xbc, 0xbb, 0x96, 0x91, 0x98, 0x9f, 0x8a, 0x8d, 0x84, 0x83,
|
|
0xde, 0xd9, 0xd0, 0xd7, 0xc2, 0xc5, 0xcc, 0xcb, 0xe6, 0xe1, 0xe8, 0xef,
|
|
0xfa, 0xfd, 0xf4, 0xf3
|
|
]
|
|
|
|
def crc8(data):
|
|
crc = 0
|
|
for byte in data:
|
|
crc = crc8_table[(crc ^ byte) & 0xFF]
|
|
return crc & 0xFF
|
|
|
|
class PrinterCommands():
|
|
RetractPaper = 0xA0 # Data: Number of steps to go back
|
|
FeedPaper = 0xA1 # Data: Number of steps to go forward
|
|
DrawBitmap = 0xA2 # Data: Line to draw. 0 bit -> don't draw pixel, 1 bit -> draw pixel
|
|
DrawingMode = 0xBE # Data: 1 for Text, 0 for Images
|
|
SetEnergy = 0xAF # Data: 1 - 0xFFFF
|
|
SetQuality = 0xA4 # Data: 1 - 5
|
|
UpdateDevice = 0xA9 # Data: 0x00
|
|
LatticeControl = 0xA6
|
|
|
|
class PBMData():
|
|
width: int
|
|
height: int
|
|
data: bytes
|
|
args: dict
|
|
def __init__(self, width=384, height=0, data=b'', args={}):
|
|
self.width = width
|
|
self.height = height
|
|
self.data = data
|
|
self.args = {
|
|
PrinterCommands.DrawingMode: b'\x00',
|
|
PrinterCommands.SetEnergy: b'\xE0\x2E',
|
|
PrinterCommands.SetQuality: b'\x05'
|
|
}
|
|
for i in args:
|
|
self.args[i] = args[i]
|
|
|
|
class PrinterDriver():
|
|
|
|
mtu: int
|
|
|
|
feed_after: int
|
|
|
|
standard_width = 384
|
|
|
|
standard_pbm_data_length_per_line = int(standard_width / 8) # 48
|
|
|
|
characteristic = '0000ae01-0000-1000-8000-00805f9b34fb'
|
|
|
|
def __init__(self, mtu=200, feed_after=128):
|
|
self.mtu = mtu
|
|
self.feed_after = feed_after
|
|
|
|
def _reverse_binary(self, value):
|
|
return int(f"{bin(value)[2:]:0>8}"[::-1], 2)
|
|
|
|
def _make_command(self, command, payload):
|
|
if len(payload) > 0x100:
|
|
raise Exception('Too large payload')
|
|
message = bytearray([0x51, 0x78, command, 0x00, len(payload), 0x00])
|
|
message += payload
|
|
message.append(crc8(payload))
|
|
message.append(0xFF)
|
|
return bytes(message)
|
|
|
|
def _read_pbm(self, path='', data=b''):
|
|
if path != '':
|
|
f = open(path, 'rb')
|
|
elif data != b'':
|
|
f = io.BytesIO(data)
|
|
else:
|
|
f = sys.stdin.buffer
|
|
signature = f.readline()
|
|
if signature != b'P4\n':
|
|
raise Exception('Specified file is not a PBM image')
|
|
width, height = self.standard_width, 0
|
|
args = {}
|
|
while True:
|
|
l = f.readline()[0:-1]
|
|
if l[0:1] == b'#':
|
|
if l[1:2] == b'!':
|
|
inline_args = l[2:].split(b',')
|
|
args[PrinterCommands.DrawingMode] = bytes([int(inline_args[0], 16)])
|
|
args[PrinterCommands.SetEnergy] = bytes([int(inline_args[1], 16)])
|
|
args[PrinterCommands.SetQuality] = bytes([int(inline_args[2], 16)])
|
|
continue
|
|
width, height = [int(x) for x in l.split(b' ')[0:2]]
|
|
if width != self.standard_width:
|
|
raise Exception('PBM image width is not 384px')
|
|
break
|
|
data = f.read()
|
|
len_data = len(data)
|
|
if len_data != height * self.standard_pbm_data_length_per_line:
|
|
raise Exception('Broken PBM file data')
|
|
return PBMData(width, height, data, args)
|
|
|
|
def _pbm_data_to_raw(self, data: PBMData):
|
|
buffer = bytearray()
|
|
for i in data.args:
|
|
buffer += self._make_command(i, data.args[i])
|
|
buffer += self._make_command(
|
|
PrinterCommands.LatticeControl,
|
|
bytearray([0xAA, 0x55, 0x17, 0x38, 0x44, 0x5F, 0x5F, 0x5F, 0x44, 0x38, 0x2C])
|
|
)
|
|
for i in range(data.height):
|
|
data_for_a_line = data.data[
|
|
i * self.standard_pbm_data_length_per_line :
|
|
(i + 1) * self.standard_pbm_data_length_per_line
|
|
]
|
|
if i % 200 == 0:
|
|
buffer += self._make_command(
|
|
PrinterCommands.LatticeControl,
|
|
bytearray([0xAA, 0x55, 0x17, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x17])
|
|
)
|
|
# buffer += self._make_command(
|
|
# PrinterCommands.UpdateDevice,
|
|
# bytes([0x00])
|
|
# )
|
|
buffer += self._make_command(
|
|
PrinterCommands.DrawBitmap,
|
|
bytes([self._reverse_binary(x) for x in data_for_a_line])
|
|
)
|
|
buffer += self._make_command(
|
|
PrinterCommands.LatticeControl,
|
|
bytearray([0xAA, 0x55, 0x17, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x17])
|
|
)
|
|
if self.feed_after > 0:
|
|
buffer += self._make_command(
|
|
PrinterCommands.FeedPaper,
|
|
bytes([self.feed_after % 256, self.feed_after // 256])
|
|
)
|
|
return buffer
|
|
|
|
async def _send_buffer(self, buffer: bytearray, address: str):
|
|
client = BleakClient(address)
|
|
await client.connect()
|
|
# await client.write_gatt_char(self.characteristic, self._make_command(PrinterCommands.FeedPaper, bytearray([0, 0])))
|
|
count = 0
|
|
total = len(buffer) // self.mtu
|
|
while True:
|
|
start = count * self.mtu
|
|
end = count * self.mtu + self.mtu
|
|
if count < total:
|
|
await client.write_gatt_char(self.characteristic, buffer[start:end])
|
|
if count % 16 == 0:
|
|
await asyncio.sleep(0.5)
|
|
count += 1
|
|
else:
|
|
await client.write_gatt_char(self.characteristic, buffer[start:])
|
|
break
|
|
await client.disconnect()
|
|
|
|
async def print_file(self, path: str, address: str):
|
|
pbm_data = self._read_pbm(path)
|
|
buffer = self._pbm_data_to_raw(pbm_data)
|
|
await self._send_buffer(buffer, address)
|
|
|
|
async def print_data(self, data: bytes, address: str):
|
|
pbm_data = self._read_pbm('', data)
|
|
buffer = self._pbm_data_to_raw(pbm_data)
|
|
await self._send_buffer(buffer, address)
|
|
|
|
if __name__ == '__main__':
|
|
len_argv = len(sys.argv)
|
|
printer = PrinterDriver()
|
|
loop = asyncio.get_event_loop()
|
|
if len_argv == 1:
|
|
print(
|
|
'Usage: %s <xx:xx:xx:xx:xx:xx> [PBM files to print...]\n' % os.path.basename(__file__) +
|
|
'\tPrint PBM files to a Cat Printer\n' +
|
|
'\tInput MAC address and file paths\n' +
|
|
'\tInputing file to stdin is also supported'
|
|
)
|
|
else:
|
|
if len_argv == 2:
|
|
loop.run_until_complete(printer.print_file('', sys.argv[1]))
|
|
elif len_argv >= 3:
|
|
for i in sys.argv[2:]:
|
|
loop.run_until_complete(printer.print_file(i, sys.argv[1]))
|