def set_default_config():
# restore factory defaults
# setting the audio to analogue
set_to_HDMI(False)
set_config_value('hdmi_ignore_edid_audio', 1)
set_config_value('hdmi_drive', None)
# resetting HDMI settings
set_config_value('disable_overscan', 1)
set_config_value('overscan_left', 0)
set_config_value('overscan_right', 0)
set_config_value('overscan_top', 0)
set_config_value('overscan_bottom', 0)
set_config_value('hdmi_pixel_encoding', 2)
set_config_value('hdmi_group', None)
set_config_value('hdmi_mode', None)
set_config_value('display_rotate', 0)
# resetting overclocking settings
set_default_overclock_values()
# set the keyboard to default
set_keyboard('en_US', 'generic')
end_config_transaction()
def set_default_config():
# restore factory defaults
# setting the audio to analogue
set_to_HDMI(False)
set_config_value("hdmi_ignore_edid_audio", 1)
set_config_value("hdmi_drive", None)
# resetting HDMI settings
set_config_value("disable_overscan", 1)
set_config_value("overscan_left", 0)
set_config_value("overscan_right", 0)
set_config_value("overscan_top", 0)
set_config_value("overscan_bottom", 0)
set_config_value("hdmi_pixel_encoding", 2)
set_config_value("hdmi_group", None)
set_config_value("hdmi_mode", None)
set_config_value("display_rotate", 0)
set_config_comment("kano_screen_used", "xxx")
# resetting overclocking settings
set_default_overclock_values()
# set the keyboard to default
set_keyboard("en_US", "generic")
end_config_transaction()
def swap_clock_configs(this_config, other_config, curr_pi2):
# save the pi1(2) values in case the SD card is to be used later in a pi2(1)
overclock.backup_overclock_values(other_config)
if this_config.exists():
logger.info("Restoring clock settings from backup")
overclock.restore_overclock_values(this_config)
if overclock.match_overclock_value(curr_pi2) is None:
logger.info("Restored clock settings, but they were broken.")
overclock.set_default_overclock_values(curr_pi2)
else:
# no saved config for the new chip, set to default
overclock.set_default_overclock_values(curr_pi2)
def restore_config(config, model):
if config.exists():
logger.info(
"Restoring clock settings for {} from backup".format(model)
)
overclock.restore_overclock_values(config)
if overclock.match_overclock_value(model) is None:
logger.info("Restored clock settings, but they were broken.")
overclock.set_default_overclock_values(model)
else:
logger.info(
"Restoring default clock settings for {}".format(model)
)
# no saved config for the new chip, set to default
overclock.set_default_overclock_values(model)
def check_clock_config_matches_chip():
""" Check if the clock setting in the current config is supported on
the chip we have booted on.
If not, try to restore from a backup file. If that is not possible,
set to a default appropraite to this chip.
"""
# This will need updating if another board is made.
curr_pi2 = is_model_2_b()
clock_setting_match_pi2 = overclock.match_overclock_value(True)
clock_setting_match_pi1 = overclock.match_overclock_value(False)
if curr_pi2:
if clock_setting_match_pi2 is not None:
return False # config okay for pi2, do nothing
elif clock_setting_match_pi1 is not None:
# we are on a pi2 but the clock values match pi1
logger.info("No match in overclock settings: restoring pi2 default")
swap_clock_configs(pi2_backup_config, pi1_backup_config, curr_pi2)
else:
logger.info("Restoring pi2 default clock settings")
# we are on pi2 and current clock doesn't match either pi1 or pi2
overclock.set_default_overclock_values(curr_pi2)
else:
# exactly as above in reverse
if clock_setting_match_pi1 is not None:
return False # config okay for pi1, do nothing
elif clock_setting_match_pi2 is not None:
# we are on a pi1 but the clock values match pi2
swap_clock_configs(pi1_backup_config, pi2_backup_config, curr_pi2)
else:
# we are on pi1 and current clock doesn't match either pi1 or pi2
logger.info("No match in overclock settings: restoring pi1 default")
overclock.set_default_overclock_values(curr_pi2)
return True # we need to reboot if we get here
