mirror of
https://github.com/ARM-software/workload-automation.git
synced 2024-10-06 19:01:15 +01:00
208 lines
8.7 KiB
Python
208 lines
8.7 KiB
Python
# Copyright 2014-2015 ARM Limited
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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# pylint: disable=E1101
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import os
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import re
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import time
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import pexpect
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from wlauto import BigLittleDevice, Parameter
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from wlauto.exceptions import DeviceError
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from wlauto.utils.serial_port import open_serial_connection, pulse_dtr
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from wlauto.utils.android import adb_connect, adb_disconnect, adb_list_devices
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from wlauto.utils.uefi import UefiMenu, UefiConfig
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from wlauto.utils.uboot import UbootMenu
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AUTOSTART_MESSAGE = 'Press Enter to stop auto boot...'
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class Juno(BigLittleDevice):
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name = 'juno'
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description = """
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ARM Juno next generation big.LITTLE development platform.
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"""
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capabilities = ['reset_power']
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has_gpu = True
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core_modules = [
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'vexpress',
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]
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parameters = [
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Parameter('retries', kind=int, default=2,
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description="""Specifies the number of times the device will attempt to recover
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(normally, with a hard reset) if it detects that something went wrong."""),
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Parameter('microsd_mount_point', default='/media/JUNO',
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description='Location at which the device\'s MicroSD card will be mounted.'),
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Parameter('port', default='/dev/ttyS0', description='Serial port on which the device is connected.'),
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Parameter('baudrate', kind=int, default=115200, description='Serial connection baud.'),
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Parameter('timeout', kind=int, default=300, description='Serial connection timeout.'),
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Parameter('core_names', default=['a53', 'a53', 'a53', 'a53', 'a57', 'a57'], override=True),
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Parameter('core_clusters', default=[0, 0, 0, 0, 1, 1], override=True),
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Parameter('bootloader', default='uefi', allowed_values=['uefi', 'u-boot'],
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description="""Bootloader used on the device."""),
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# VExpress flasher expects a device to have these:
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Parameter('uefi_entry', default='WA',
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description='The name of the entry to use (will be created if does not exist).'),
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Parameter('uefi_config', kind=UefiConfig,
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description='''Specifies the configuration for the UEFI entry for his device. In an
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entry specified by ``uefi_entry`` parameter doesn't exist in UEFI menu,
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it will be created using this config. This configuration will also be
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used, when flashing new images.''',
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default={
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'image_name': 'Image',
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'image_args': 'console=ttyAMA0,115200 '
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'earlyprintk=pl011,0x7ff80000 '
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'verbose debug init=/init '
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'root=/dev/sda1 rw ip=dhcp rootwait',
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'fdt_support': True,
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}
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),
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]
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short_delay = 1
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firmware_prompt = 'Cmd>'
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def boot(self, **kwargs):
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self.logger.debug('Resetting the device.')
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self.reset()
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if self.bootloader == 'uefi':
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self._boot_via_uefi()
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else:
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self._boot_via_uboot(**kwargs)
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def _boot_via_uboot(self, **kwargs):
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if not kwargs:
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# Standard linaro configuration will proceed directly to the kernel
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return
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with open_serial_connection(port=self.port,
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baudrate=self.baudrate,
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timeout=self.timeout,
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init_dtr=0) as target:
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menu = UbootMenu(target)
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self.logger.debug('Waiting for U-Boot prompt...')
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menu.open(timeout=120)
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for var, value in kwargs.iteritems():
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menu.setenv(var, value)
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menu.boot()
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def _boot_via_uefi(self):
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with open_serial_connection(port=self.port,
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baudrate=self.baudrate,
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timeout=self.timeout,
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init_dtr=0) as target:
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menu = UefiMenu(target)
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self.logger.debug('Waiting for UEFI menu...')
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menu.open(timeout=120)
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try:
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menu.select(self.uefi_entry)
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except LookupError:
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self.logger.debug('{} UEFI entry not found.'.format(self.uefi_entry))
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self.logger.debug('Attempting to create one using default flasher configuration.')
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menu.create_entry(self.uefi_entry, self.uefi_config)
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menu.select(self.uefi_entry)
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self.logger.debug('Waiting for the Android prompt.')
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target.expect(self.android_prompt, timeout=self.timeout)
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def connect(self):
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if not self._is_ready:
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if not self.adb_name: # pylint: disable=E0203
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with open_serial_connection(timeout=self.timeout,
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port=self.port,
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baudrate=self.baudrate,
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init_dtr=0) as target:
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target.sendline('')
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self.logger.debug('Waiting for the Android prompt.')
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target.expect(self.android_prompt)
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self.logger.debug('Waiting for IP address...')
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wait_start_time = time.time()
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while True:
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target.sendline('ip addr list eth0')
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time.sleep(1)
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try:
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target.expect('inet ([1-9]\d*.\d+.\d+.\d+)', timeout=10)
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self.adb_name = target.match.group(1) + ':5555' # pylint: disable=W0201
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break
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except pexpect.TIMEOUT:
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pass # We have our own timeout -- see below.
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if (time.time() - wait_start_time) > self.ready_timeout:
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raise DeviceError('Could not acquire IP address.')
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if self.adb_name in adb_list_devices():
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adb_disconnect(self.adb_name)
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adb_connect(self.adb_name, timeout=self.timeout)
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super(Juno, self).connect() # wait for boot to complete etc.
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self._is_ready = True
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def disconnect(self):
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if self._is_ready:
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super(Juno, self).disconnect()
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adb_disconnect(self.adb_name)
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self._is_ready = False
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def reset(self):
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# Currently, reboot is not working in Android on Juno, so
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# perfrom a ahard reset instead
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self.hard_reset()
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def hard_reset(self):
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self.disconnect()
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self.adb_name = None # Force re-acquire IP address on reboot. pylint: disable=attribute-defined-outside-init
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with open_serial_connection(port=self.port,
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baudrate=self.baudrate,
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timeout=self.timeout,
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init_dtr=0,
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get_conn=True) as (target, conn):
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pulse_dtr(conn, state=True, duration=0.1) # TRM specifies a pulse of >=100ms
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i = target.expect([AUTOSTART_MESSAGE, self.firmware_prompt])
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if i:
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self.logger.debug('Saw firmware prompt.')
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time.sleep(self.short_delay)
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target.sendline('reboot')
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else:
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self.logger.debug('Saw auto boot message.')
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def wait_for_microsd_mount_point(self, target, timeout=100):
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attempts = 1 + self.retries
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if os.path.exists(os.path.join(self.microsd_mount_point, 'config.txt')):
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return
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self.logger.debug('Waiting for VExpress MicroSD to mount...')
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for i in xrange(attempts):
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if i: # Do not reboot on the first attempt.
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target.sendline('reboot')
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for _ in xrange(timeout):
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time.sleep(self.short_delay)
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if os.path.exists(os.path.join(self.microsd_mount_point, 'config.txt')):
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return
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raise DeviceError('Did not detect MicroSD mount on {}'.format(self.microsd_mount_point))
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def get_android_id(self):
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# Android ID currenlty not set properly in Juno Android builds.
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return 'abad1deadeadbeef'
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