/usr/share/jockey/handlers/pvr-omap4.py is in jockey-common 0.9.7-0ubuntu7.16.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 | # -*- coding: utf-8 -*-
# (c) 2008-2010 Canonical Ltd.
# (c) 2012 Linaro Ltd.
# Authors: Ricardo Salveti de Araujo <rsalveti@linaro.org>
#
# Alternatives from nvidia-common, created by
# Alberto Milone <alberto.milone@canonical.com>
#
# License: GPL v2 or later
import logging, os, re, subprocess
from jockey.xorg_driver import XorgDriverHandler
from subprocess import Popen, PIPE, CalledProcessError
# dummy stub for xgettext
def _(x): return x
class Alternatives(object):
def __init__(self, master_link):
self._open_egl_drivers_alternative = 'mesa-egl/ld.so.conf'
self._command = 'update-alternatives'
self._master_link = master_link
# Make sure that the PATH environment variable is set
if not os.environ.get('PATH'):
os.environ['PATH'] = '/sbin:/usr/sbin:/bin:/usr/bin'
def list_alternatives(self):
'''Get the list of alternatives for the master link'''
dev_null = open('/dev/null', 'w')
alternatives = []
p1 = Popen([self._command, '--list', self._master_link],
stdout=PIPE, stderr=dev_null)
p = p1.communicate()[0]
dev_null.close()
c = p.split('\n')
for line in c:
line.strip() and alternatives.append(line.strip())
return alternatives
def get_current_alternative(self):
'''Get the alternative in use'''
dev_null = open('/dev/null', 'w')
current_alternative = None
p1 = Popen([self._command, '--query', self._master_link],
stdout=PIPE, stderr=dev_null)
p = p1.communicate()[0]
dev_null.close()
c = p.split('\n')
for line in c:
if line.strip().startswith('Value:'):
return line.replace('Value:', '').strip()
return None
def get_alternative_by_name(self, name, ignore_pattern=None):
'''Get the alternative link by providing the driver name
ignore_pattern allows ignoring a substring in the name'''
if ignore_pattern:
name = name.replace(ignore_pattern, '')
alternatives = self.list_alternatives()
for alternative in alternatives:
if alternative.split('/')[-2] == name:
return alternative
return None
def get_open_egl_drivers_alternative(self):
'''Get the alternative link for open EGL/GLES drivers'''
return self.get_alternative_by_name(self._open_egl_drivers_alternative)
def set_alternative(self, path):
'''Tries to set an alternative and returns the boolean exit status'''
try:
subprocess.check_call([self._command, '--set',
self._master_link, path])
self.ldconfig()
except CalledProcessError:
return False
return True
def ldconfig(self):
'''Call ldconfig'''
try:
subprocess.check_call(['ldconfig'])
except CalledProcessError:
return False
return True
class PVROmap4Driver(XorgDriverHandler):
def __init__(self, backend, package=None):
self._free = False
name=_('PowerVR SGX proprietary graphics driver for OMAP 4')
XorgDriverHandler.__init__(self, backend, 'omapdrm_pvr', 'pvr-omap4',
None, None, name=name,
description=_('3D-accelerated proprietary graphics driver for '
'OMAP 4 SoCs.'),
rationale=_('This driver is required to fully utilise the 3D '
'potential of OMAP 4 powered boards.'))
self.pkg_alternative = 'pvr-omap4-egl'
self._module_alias = 'omapdrm_pvr'
self._alternatives = self._get_alternatives()
self.omap4_re = re.compile('^Hardware.*OMAP4.*')
self.needs_kernel_headers = True
def _get_architecture(self):
dev_null = open('/dev/null', 'w')
p1 = Popen(['dpkg', '--print-architecture'], stdout=PIPE,
stderr=dev_null)
p = p1.communicate()[0]
dev_null.close()
architecture = p.strip()
return architecture
def _get_alternatives(self):
'''Get multi-arch alternatives names'''
main_name = "arm-linux-gnueabi_egl_conf"
if self._get_architecture() == "armhf":
main_name = "arm-linux-gnueabihf_egl_conf"
return Alternatives(main_name)
def available(self):
'''Check /proc/cpuinfo for an OMAP 4 board.'''
if XorgDriverHandler.available(self) == False:
return False
try:
for l in open('/proc/cpuinfo'):
if self.omap4_re.match(l):
return True
except IOError as e:
logging.error('could not open /proc/cpuinfo: %s' % str(e))
return False
def enable(self):
XorgDriverHandler.enable(self)
# Set the alternative to PowerVR SGX (EGL)
pvr_omap4_alternative = self._alternatives.get_alternative_by_name(
self.pkg_alternative, ignore_pattern='-updates')
if not pvr_omap4_alternative:
logging.error('%s: get_alternative_by_name(%s) returned nothing' % (
self.id(), self.pkg_alternative))
return
self._alternatives.set_alternative(pvr_omap4_alternative)
def enabled(self):
# See if pvr-omap4 is the current alternative
target_alternative = \
self._alternatives.get_alternative_by_name(self.pkg_alternative)
current_alternative = self._alternatives.get_current_alternative()
logging.debug('pvr-omap4.enabled(%s): target_alt %s current_alt %s',
self.module, target_alternative, current_alternative)
if current_alternative is None:
logging.debug('current alternative of %s is None, not enabled',
self.pkg_alternative)
return False
if current_alternative != target_alternative:
logging.debug('%s is not the alternative in use',
self.pkg_alternative)
return False
return XorgDriverHandler.enabled(self)
def disable(self):
XorgDriverHandler.disable(self)
# Set the alternative back to open drivers
open_drivers = self._alternatives.get_open_egl_drivers_alternative()
logging.debug('pvr-omap4.disable(%s): open_drivers: %s',
self.module, open_drivers)
if open_drivers:
self._alternatives.set_alternative(open_drivers)
return False
def enables_composite(self):
'''Return whether this driver supports the composite extension.'''
if KernelModuleHandler.module_loaded('omapdrm_pvr'):
logging.debug('enables_composite(): already using pvr-omap4 '
'driver from nondefault package')
return False
return True
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