Initial commit of open source Workload Automation.

wlauto/devices/android/juno/__init__.py

@@ -0,0 +1,173 @@
+#    Copyright 2014-2015 ARM Limited
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+
+# pylint: disable=E1101
+import os
+import re
+import time
+
+import pexpect
+
+from wlauto import BigLittleDevice, Parameter
+from wlauto.exceptions import DeviceError
+from wlauto.utils.serial_port import open_serial_connection, pulse_dtr
+from wlauto.utils.android import adb_connect, adb_disconnect, adb_list_devices
+from wlauto.utils.uefi import UefiMenu
+
+
+AUTOSTART_MESSAGE = 'Press Enter to stop auto boot...'
+
+
+class Juno(BigLittleDevice):
+
+    name = 'juno'
+    description = """
+    ARM Juno next generation big.LITTLE development platform.
+    """
+
+    capabilities = ['reset_power']
+
+    has_gpu = True
+
+    modules = [
+        'vexpress',
+    ]
+
+    parameters = [
+        Parameter('retries', kind=int, default=2,
+                  description="""Specifies the number of times the device will attempt to recover
+                                 (normally, with a hard reset) if it detects that something went wrong."""),
+
+        # VExpress flasher expects a device to have these:
+        Parameter('uefi_entry', default='WA',
+                  description='The name of the entry to use (will be created if does not exist).'),
+        Parameter('microsd_mount_point', default='/media/JUNO',
+                  description='Location at which the device\'s MicroSD card will be mounted.'),
+        Parameter('port', default='/dev/ttyS0', description='Serial port on which the device is connected.'),
+        Parameter('baudrate', kind=int, default=115200, description='Serial connection baud.'),
+        Parameter('timeout', kind=int, default=300, description='Serial connection timeout.'),
+        Parameter('core_names', default=['a53', 'a53', 'a53', 'a53', 'a57', 'a57'], override=True),
+        Parameter('core_clusters', default=[0, 0, 0, 0, 1, 1], override=True),
+    ]
+
+    short_delay = 1
+    firmware_prompt = 'Cmd>'
+    # this is only used  if there is no UEFI entry and one has to be created.
+    kernel_arguments = 'console=ttyAMA0,115200 earlyprintk=pl011,0x7ff80000 verbose debug init=/init root=/dev/sda1 rw ip=dhcp rootwait'
+
+    def boot(self, **kwargs):
+        self.logger.debug('Resetting the device.')
+        self.reset()
+        with open_serial_connection(port=self.port,
+                                    baudrate=self.baudrate,
+                                    timeout=self.timeout,
+                                    init_dtr=0) as target:
+            menu = UefiMenu(target)
+            self.logger.debug('Waiting for UEFI menu...')
+            menu.open(timeout=120)
+            try:
+                menu.select(self.uefi_entry)
+            except LookupError:
+                self.logger.debug('{} UEFI entry not found.'.format(self.uefi_entry))
+                self.logger.debug('Attempting to create one using default flasher configuration.')
+                self.flasher.image_args = self.kernel_arguments
+                self.flasher.create_uefi_enty(self, menu)
+                menu.select(self.uefi_entry)
+            self.logger.debug('Waiting for the Android prompt.')
+            target.expect(self.android_prompt, timeout=self.timeout)
+
+    def connect(self):
+        if not self._is_ready:
+            if not self.adb_name:  # pylint: disable=E0203
+                with open_serial_connection(timeout=self.timeout,
+                                            port=self.port,
+                                            baudrate=self.baudrate,
+                                            init_dtr=0) as target:
+                    target.sendline('')
+                    self.logger.debug('Waiting for android prompt.')
+                    target.expect(self.android_prompt)
+
+                    self.logger.debug('Waiting for IP address...')
+                    wait_start_time = time.time()
+                    while True:
+                        target.sendline('ip addr list eth0')
+                        time.sleep(1)
+                        try:
+                            target.expect('inet ([1-9]\d*.\d+.\d+.\d+)', timeout=10)
+                            self.adb_name = target.match.group(1) + ':5555'  # pylint: disable=W0201
+                            break
+                        except pexpect.TIMEOUT:
+                            pass  # We have our own timeout -- see below.
+                        if (time.time() - wait_start_time) > self.ready_timeout:
+                            raise DeviceError('Could not acquire IP address.')
+
+            if self.adb_name in adb_list_devices():
+                adb_disconnect(self.adb_name)
+            adb_connect(self.adb_name, timeout=self.timeout)
+            super(Juno, self).connect()  # wait for boot to complete etc.
+            self._is_ready = True
+
+    def disconnect(self):
+        if self._is_ready:
+            super(Juno, self).disconnect()
+            adb_disconnect(self.adb_name)
+            self._is_ready = False
+
+    def reset(self):
+        # Currently, reboot is not working in Android on Juno, so
+        # perfrom a ahard reset instead
+        self.hard_reset()
+
+    def get_cpuidle_states(self, cpu=0):
+        return {}
+
+    def hard_reset(self):
+        self.disconnect()
+        self.adb_name = None  # Force re-acquire IP address on reboot. pylint: disable=attribute-defined-outside-init
+        with open_serial_connection(port=self.port,
+                                    baudrate=self.baudrate,
+                                    timeout=self.timeout,
+                                    init_dtr=0,
+                                    get_conn=True) as (target, conn):
+            pulse_dtr(conn, state=True, duration=0.1)  # TRM specifies a pulse of >=100ms
+
+            i = target.expect([AUTOSTART_MESSAGE, self.firmware_prompt])
+            if i:
+                self.logger.debug('Saw firmware prompt.')
+                time.sleep(self.short_delay)
+                target.sendline('reboot')
+            else:
+                self.logger.debug('Saw auto boot message.')
+
+    def wait_for_microsd_mount_point(self, target, timeout=100):
+        attempts = 1 + self.retries
+        if os.path.exists(os.path.join(self.microsd_mount_point, 'config.txt')):
+            return
+
+        self.logger.debug('Waiting for VExpress MicroSD to mount...')
+        for i in xrange(attempts):
+            if i:  # Do not reboot on the first attempt.
+                target.sendline('reboot')
+            for _ in xrange(timeout):
+                time.sleep(self.short_delay)
+                if os.path.exists(os.path.join(self.microsd_mount_point, 'config.txt')):
+                    return
+        raise DeviceError('Did not detect MicroSD mount on {}'.format(self.microsd_mount_point))
+
+    def get_android_id(self):
+        # Android ID currenlty not set properly in Juno Android builds.
+        return 'abad1deadeadbeef'
+