1# Copyright (C) 2014 Intel Corporation 2# 3# Released under the MIT license (see COPYING.MIT) 4 5# This module adds support to testimage.bbclass to deploy images and run 6# tests on a BeagleBone (original "white" or Black models). The device must 7# be set up as per README.hardware and the master image should be deployed 8# onto the card so that it boots into it by default. For booting into the 9# image under test we interact with u-boot over serial, so for the 10# BeagleBone Black you will need an additional TTL serial cable since a 11# serial interface isn't automatically provided over the USB connection as 12# it is on the original BeagleBone ("white") version. The separate ext3 13# partition that will contain the image to be tested must be labelled 14# "testrootfs" so that the deployment code below can find it. 15# 16# NOTE: for the BeagleBone "white" (original version) you may need to use 17# a script which handles the serial device disappearing on power down, such 18# as scripts/contrib/serdevtry in OE-Core. 19 20import os 21import bb 22import time 23import subprocess 24import sys 25import pexpect 26 27from oeqa.controllers.controllerimage import ControllerImageHardwareTarget 28 29 30class BeagleBoneTarget(ControllerImageHardwareTarget): 31 32 dtbs = {'uImage-am335x-bone.dtb': 'am335x-bone.dtb', 'uImage-am335x-boneblack.dtb': 'am335x-boneblack.dtb'} 33 34 @classmethod 35 def get_extra_files(self): 36 return list(self.dtbs.keys()) 37 38 def __init__(self, d): 39 super(BeagleBoneTarget, self).__init__(d) 40 41 self.image_fstype = self.get_image_fstype(d) 42 self.deploy_cmds = [ 43 'mkdir -p /mnt/testrootfs', 44 'mount -L testrootfs /mnt/testrootfs', 45 'rm -rf /mnt/testrootfs/*', 46 'tar xvf ~/test-rootfs.%s -C /mnt/testrootfs' % self.image_fstype, 47 '[ -e /mnt/testrootfs/boot/uImage ] || [ -L /mnt/testrootfs/boot/uImage ] || cp ~/test-kernel /mnt/testrootfs/boot/uImage', 48 ] 49 50 for _, dtbfn in self.dtbs.iteritems(): 51 # Kernel and dtb files may not be in the image, so copy them if not 52 self.deploy_cmds.append('[ -e /mnt/testrootfs/boot/{0} ] || cp ~/{0} /mnt/testrootfs/boot/'.format(dtbfn)) 53 54 if not self.serialcontrol_cmd: 55 bb.fatal("This TEST_TARGET needs a TEST_SERIALCONTROL_CMD defined in local.conf.") 56 57 58 def _deploy(self): 59 self.controller.run("umount /boot; umount /mnt/testrootfs;") 60 self.controller.ignore_status = False 61 # Kernel and dtb files may not be in the image, so copy them just in case 62 self.controller.copy_to(self.kernel, "~/test-kernel") 63 kernelpath = os.path.dirname(self.kernel) 64 for dtborig, dtbfn in self.dtbs.iteritems(): 65 dtbfile = os.path.join(kernelpath, dtborig) 66 if os.path.exists(dtbfile): 67 self.controller.copy_to(dtbfile, "~/%s" % dtbfn) 68 self.controller.copy_to(self.rootfs, "~/test-rootfs.%s" % self.image_fstype) 69 for cmd in self.deploy_cmds: 70 self.controller.run(cmd) 71 72 def _start(self, params=None): 73 self.power_cycle(self.controller) 74 try: 75 serialconn = pexpect.spawn(self.serialcontrol_cmd, env=self.origenv, logfile=sys.stdout) 76 # We'd wait for "U-Boot" here but sometimes we connect too late on BeagleBone white to see it 77 serialconn.expect("NAND:") 78 serialconn.expect("MMC:") 79 serialconn.sendline("a") 80 serialconn.expect("U-Boot#") 81 serialconn.sendline("setenv bootpart 0:3") 82 serialconn.expect("U-Boot#") 83 serialconn.sendline("setenv mmcroot /dev/mmcblk0p3 ro") 84 serialconn.expect("U-Boot#") 85 serialconn.sendline("boot") 86 serialconn.expect("login:", timeout=120) 87 serialconn.close() 88 except pexpect.ExceptionPexpect as e: 89 bb.fatal('Serial interaction failed: %s' % str(e)) 90 91 def _wait_until_booted(self): 92 try: 93 serialconn = pexpect.spawn(self.serialcontrol_cmd, env=self.origenv, logfile=sys.stdout) 94 serialconn.expect("login:", timeout=120) 95 serialconn.close() 96 except pexpect.ExceptionPexpect as e: 97 bb.fatal('Serial interaction failed: %s' % str(e)) 98