diff options
Diffstat (limited to 'meta-facebook/meta-yosemite/recipes-yosemite/fbutils/files/power_util.py')
| -rw-r--r-- | meta-facebook/meta-yosemite/recipes-yosemite/fbutils/files/power_util.py | 151 |
1 files changed, 0 insertions, 151 deletions
diff --git a/meta-facebook/meta-yosemite/recipes-yosemite/fbutils/files/power_util.py b/meta-facebook/meta-yosemite/recipes-yosemite/fbutils/files/power_util.py deleted file mode 100644 index d1cc60e..0000000 --- a/meta-facebook/meta-yosemite/recipes-yosemite/fbutils/files/power_util.py +++ /dev/null @@ -1,151 +0,0 @@ -#!/usr/bin/env python -# -# Copyright 2015-present Facebook. All Rights Reserved. -# -# This program file is free software; you can redistribute it and/or modify it -# under the terms of the GNU General Public License as published by the -# Free Software Foundation; version 2 of the License. -# -# This program is distributed in the hope that it will be useful, but WITHOUT -# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or -# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -# for more details. -# -# You should have received a copy of the GNU General Public License -# along with this program in a file named COPYING; if not, write to the -# Free Software Foundation, Inc., -# 51 Franklin Street, Fifth Floor, -# Boston, MA 02110-1301 USA -# - -import os -import re -import time -import logging -from ctypes import * - -POR_DIR = '/mnt/data/power/por' -POR_CONFIG = '%s/config' % POR_DIR -POR_LPS = '%s/last_state' % POR_DIR - -logging.basicConfig(level=logging.INFO) -log = logging.getLogger(__name__) - -class PORConfig(): - on = "1" # Default ON - off = "2" # Default OFF - lps = "3" # Default is to use the Last Power State - -# Handler for Bridge IC libraries -bic = CDLL("libbic.so") - -class BIC_GPIO(Structure): - _fields_ = [ ("bic_gpio_data", c_char * 4) ] - -# Get 32-bit GPIO data -def get_bic_gpio(): - gpio = BIC_GPIO() - p_gpio = pointer(gpio) - bic.bic_get_gpio(p_gpio) - return gpio - -# Get the CPU power status -def get_pwr_cpu(): - gpio = get_bic_gpio() - pwrgood_cpu = (ord(gpio.bic_gpio_data[0]) & 0x01) - return pwrgood_cpu - -# Initilize the POR configuration files in /mnt/data -def init_por(): - - por = PORConfig() - - # For the Power On Reset Config - if not os.path.isfile(POR_CONFIG): - try: - os.makedirs(POR_DIR) - except OSERROR as err: - pass - - por_cnfg = open(POR_CONFIG, 'w') - por_cnfg.write('%s\n' % por.on) - por_cnfg.close() - - # For the Last Power State info - if not os.path.isfile(POR_LPS): - curr_time = int(time.time()) - lps = 'on %s' % str(curr_time) - - f_lps = open(POR_LPS, 'w') - f_lps.write('%s\n' % lps) - f_lps.close() - -# Get the POR config [ ON | OFF | LPS ] -def get_por_config(): - - por = PORConfig() - - if os.path.isfile(POR_CONFIG): - por_cnfg = open(POR_CONFIG, 'r') - cnfg = por_cnfg.read(1) - - if cnfg in [por.on, por.off, por.lps]: - return cnfg - else: - return 0 - else: - return -1 - -# To check whether the last power state was on or off -def get_por_lps(): - - if os.path.isfile(POR_LPS): - f_lps = open(POR_LPS, 'r') - lps = f_lps.readline() - if re.search(r'on', lps): - return 1 - elif re.search(r'off', lps): - return 0 - else: - return -1 - -# This tells whether to Power ON or not on POR -# 1 - Power ON -# 0 - Do not Power ON -def por_policy(): - - por = PORConfig() - cnfg = get_por_config() - if cnfg < 1: - log.error("power_util: Error getting the POR config.") - exit(-1) - - if (cnfg == por.on): - # cpu power ON - log.debug('ON: Powering ON') - return 1 - - elif (cnfg == por.off): - # cpu power OFF - log.debug('OFF: Powering OFF') - return 0 - - elif (cnfg == por.lps): - lps = get_por_lps() - if lps < 0: - log.error("power_util: Error getting the POR Last State.") - exit(-1) - - if lps == 1: - # cpu power ON - log.debug('LPS: Powering ON') - return 1 - - elif lps == 0: - # cpu power OFF - log.debug('LPS: Powering OFF') - return 0 - - -if __name__ == "__main__": - main() |
