303 lines
12 KiB
Python
303 lines
12 KiB
Python
"""Acquire debugging information from usb hid devices
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cli implementation of https://www.pjrc.com/teensy/hid_listen.html
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"""
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from pathlib import Path
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from threading import Thread
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from time import sleep, strftime
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import hid
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import usb.core
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from milc import cli
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LOG_COLOR = {
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'next': 0,
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'colors': [
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'{fg_blue}',
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'{fg_cyan}',
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'{fg_green}',
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'{fg_magenta}',
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'{fg_red}',
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'{fg_yellow}',
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],
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}
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KNOWN_BOOTLOADERS = {
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# VID , PID
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('03EB', '2FEF'): 'atmel-dfu: ATmega16U2',
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('03EB', '2FF0'): 'atmel-dfu: ATmega32U2',
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('03EB', '2FF3'): 'atmel-dfu: ATmega16U4',
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('03EB', '2FF4'): 'atmel-dfu: ATmega32U4',
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('03EB', '2FF9'): 'atmel-dfu: AT90USB64',
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('03EB', '2FFA'): 'atmel-dfu: AT90USB162',
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('03EB', '2FFB'): 'atmel-dfu: AT90USB128',
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('03EB', '6124'): 'Microchip SAM-BA',
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('0483', 'DF11'): 'stm32-dfu: STM32 BOOTLOADER',
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('16C0', '05DC'): 'usbasploader: USBaspLoader',
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('16C0', '05DF'): 'bootloadhid: HIDBoot',
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('16C0', '0478'): 'halfkay: Teensy Halfkay',
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('1B4F', '9203'): 'caterina: Pro Micro 3.3V',
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('1B4F', '9205'): 'caterina: Pro Micro 5V',
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('1B4F', '9207'): 'caterina: LilyPadUSB',
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('1C11', 'B007'): 'kiibohd: Kiibohd DFU Bootloader',
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('1EAF', '0003'): 'stm32duino: Maple 003',
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('1FFB', '0101'): 'caterina: Polou A-Star 32U4 Bootloader',
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('2341', '0036'): 'caterina: Arduino Leonardo',
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('2341', '0037'): 'caterina: Arduino Micro',
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('239A', '000C'): 'caterina: Adafruit Feather 32U4',
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('239A', '000D'): 'caterina: Adafruit ItsyBitsy 32U4 3v',
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('239A', '000E'): 'caterina: Adafruit ItsyBitsy 32U4 5v',
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('2A03', '0036'): 'caterina: Arduino Leonardo',
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('2A03', '0037'): 'caterina: Arduino Micro',
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('314B', '0106'): 'apm32-dfu: APM32 DFU ISP Mode',
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('03EB', '2067'): 'qmk-hid: HID Bootloader',
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('03EB', '2045'): 'lufa-ms: LUFA Mass Storage Bootloader'
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}
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class MonitorDevice(object):
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def __init__(self, hid_device, numeric):
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self.hid_device = hid_device
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self.numeric = numeric
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self.device = hid.Device(path=hid_device['path'])
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self.current_line = ''
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cli.log.info('Console Connected: %(color)s%(manufacturer_string)s %(product_string)s{style_reset_all} (%(color)s%(vendor_id)04X:%(product_id)04X:%(index)d{style_reset_all})', hid_device)
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def read(self, size, encoding='ascii', timeout=1):
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"""Read size bytes from the device.
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"""
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return self.device.read(size, timeout).decode(encoding)
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def read_line(self):
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"""Read from the device's console until we get a \n.
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"""
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while '\n' not in self.current_line:
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self.current_line += self.read(32).replace('\x00', '')
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lines = self.current_line.split('\n', 1)
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self.current_line = lines[1]
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return lines[0]
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def run_forever(self):
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while True:
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try:
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message = {**self.hid_device, 'text': self.read_line()}
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identifier = (int2hex(message['vendor_id']), int2hex(message['product_id'])) if self.numeric else (message['manufacturer_string'], message['product_string'])
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message['identifier'] = ':'.join(identifier)
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message['ts'] = '{style_dim}{fg_green}%s{style_reset_all} ' % (strftime(cli.config.general.datetime_fmt),) if cli.args.timestamp else ''
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cli.echo('%(ts)s%(color)s%(identifier)s:%(index)d{style_reset_all}: %(text)s' % message)
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except hid.HIDException:
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break
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class FindDevices(object):
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def __init__(self, vid, pid, index, numeric):
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self.vid = vid
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self.pid = pid
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self.index = index
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self.numeric = numeric
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def run_forever(self):
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"""Process messages from our queue in a loop.
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"""
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live_devices = {}
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live_bootloaders = {}
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while True:
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try:
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for device in list(live_devices):
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if not live_devices[device]['thread'].is_alive():
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cli.log.info('Console Disconnected: %(color)s%(manufacturer_string)s %(product_string)s{style_reset_all} (%(color)s%(vendor_id)04X:%(product_id)04X:%(index)d{style_reset_all})', live_devices[device])
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del live_devices[device]
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for device in self.find_devices():
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if device['path'] not in live_devices:
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device['color'] = LOG_COLOR['colors'][LOG_COLOR['next']]
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LOG_COLOR['next'] = (LOG_COLOR['next'] + 1) % len(LOG_COLOR['colors'])
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live_devices[device['path']] = device
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try:
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monitor = MonitorDevice(device, self.numeric)
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device['thread'] = Thread(target=monitor.run_forever, daemon=True)
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device['thread'].start()
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except Exception as e:
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device['e'] = e
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device['e_name'] = e.__class__.__name__
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cli.log.error("Could not connect to %(color)s%(manufacturer_string)s %(product_string)s{style_reset_all} (%(color)s:%(vendor_id)04X:%(product_id)04X:%(index)d): %(e_name)s: %(e)s", device)
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if cli.config.general.verbose:
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cli.log.exception(e)
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del live_devices[device['path']]
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if cli.args.bootloaders:
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for device in self.find_bootloaders():
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if device.address in live_bootloaders:
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live_bootloaders[device.address]._qmk_found = True
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else:
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name = KNOWN_BOOTLOADERS[(int2hex(device.idVendor), int2hex(device.idProduct))]
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cli.log.info('Bootloader Connected: {style_bright}{fg_magenta}%s', name)
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device._qmk_found = True
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live_bootloaders[device.address] = device
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for device in list(live_bootloaders):
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if live_bootloaders[device]._qmk_found:
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live_bootloaders[device]._qmk_found = False
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else:
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name = KNOWN_BOOTLOADERS[(int2hex(live_bootloaders[device].idVendor), int2hex(live_bootloaders[device].idProduct))]
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cli.log.info('Bootloader Disconnected: {style_bright}{fg_magenta}%s', name)
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del live_bootloaders[device]
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sleep(.1)
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except KeyboardInterrupt:
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break
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def is_bootloader(self, hid_device):
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"""Returns true if the device in question matches a known bootloader vid/pid.
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"""
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return (int2hex(hid_device.idVendor), int2hex(hid_device.idProduct)) in KNOWN_BOOTLOADERS
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def is_console_hid(self, hid_device):
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"""Returns true when the usage page indicates it's a teensy-style console.
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"""
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return hid_device['usage_page'] == 0xFF31 and hid_device['usage'] == 0x0074
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def is_filtered_device(self, hid_device):
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"""Returns True if the device should be included in the list of available consoles.
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"""
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return int2hex(hid_device['vendor_id']) == self.vid and int2hex(hid_device['product_id']) == self.pid
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def find_devices_by_report(self, hid_devices):
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"""Returns a list of available teensy-style consoles by doing a brute-force search.
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Some versions of linux don't report usage and usage_page. In that case we fallback to reading the report (possibly inaccurately) ourselves.
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"""
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devices = []
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for device in hid_devices:
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path = device['path'].decode('utf-8')
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if path.startswith('/dev/hidraw'):
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number = path[11:]
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report = Path(f'/sys/class/hidraw/hidraw{number}/device/report_descriptor')
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if report.exists():
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rp = report.read_bytes()
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if rp[1] == 0x31 and rp[3] == 0x09:
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devices.append(device)
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return devices
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def find_bootloaders(self):
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"""Returns a list of available bootloader devices.
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"""
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return list(filter(self.is_bootloader, usb.core.find(find_all=True)))
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def find_devices(self):
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"""Returns a list of available teensy-style consoles.
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"""
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hid_devices = hid.enumerate()
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devices = list(filter(self.is_console_hid, hid_devices))
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if not devices:
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devices = self.find_devices_by_report(hid_devices)
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if self.vid and self.pid:
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devices = list(filter(self.is_filtered_device, devices))
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# Add index numbers
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device_index = {}
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for device in devices:
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id = ':'.join((int2hex(device['vendor_id']), int2hex(device['product_id'])))
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if id not in device_index:
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device_index[id] = 0
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device_index[id] += 1
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device['index'] = device_index[id]
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return devices
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def int2hex(number):
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"""Returns a string representation of the number as hex.
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"""
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return "%04X" % number
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def list_devices(device_finder):
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"""Show the user a nicely formatted list of devices.
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"""
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devices = device_finder.find_devices()
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if devices:
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cli.log.info('Available devices:')
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for dev in devices:
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color = LOG_COLOR['colors'][LOG_COLOR['next']]
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LOG_COLOR['next'] = (LOG_COLOR['next'] + 1) % len(LOG_COLOR['colors'])
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cli.log.info("\t%s%s:%s:%d{style_reset_all}\t%s %s", color, int2hex(dev['vendor_id']), int2hex(dev['product_id']), dev['index'], dev['manufacturer_string'], dev['product_string'])
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if cli.args.bootloaders:
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bootloaders = device_finder.find_bootloaders()
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if bootloaders:
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cli.log.info('Available Bootloaders:')
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for dev in bootloaders:
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cli.log.info("\t%s:%s\t%s", int2hex(dev.idVendor), int2hex(dev.idProduct), KNOWN_BOOTLOADERS[(int2hex(dev.idVendor), int2hex(dev.idProduct))])
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@cli.argument('--bootloaders', arg_only=True, default=True, action='store_boolean', help='displaying bootloaders.')
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@cli.argument('-d', '--device', help='Device to select - uses format <pid>:<vid>[:<index>].')
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@cli.argument('-l', '--list', arg_only=True, action='store_true', help='List available hid_listen devices.')
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@cli.argument('-n', '--numeric', arg_only=True, action='store_true', help='Show VID/PID instead of names.')
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@cli.argument('-t', '--timestamp', arg_only=True, action='store_true', help='Print the timestamp for received messages as well.')
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@cli.argument('-w', '--wait', type=int, default=1, help="How many seconds to wait between checks (Default: 1)")
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@cli.subcommand('Acquire debugging information from usb hid devices.', hidden=False if cli.config.user.developer else True)
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def console(cli):
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"""Acquire debugging information from usb hid devices
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"""
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vid = None
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pid = None
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index = 1
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if cli.config.console.device:
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device = cli.config.console.device.split(':')
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if len(device) == 2:
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vid, pid = device
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elif len(device) == 3:
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vid, pid, index = device
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if not index.isdigit():
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cli.log.error('Device index must be a number! Got "%s" instead.', index)
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exit(1)
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index = int(index)
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if index < 1:
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cli.log.error('Device index must be greater than 0! Got %s', index)
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exit(1)
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else:
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cli.log.error('Invalid format for device, expected "<pid>:<vid>[:<index>]" but got "%s".', cli.config.console.device)
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cli.print_help()
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exit(1)
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vid = vid.upper()
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pid = pid.upper()
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device_finder = FindDevices(vid, pid, index, cli.args.numeric)
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if cli.args.list:
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return list_devices(device_finder)
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print('Looking for devices...', flush=True)
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device_finder.run_forever()
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