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+#!/usr/bin/env python
+#
+# Copyright 2014-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
+#
+
+from rest_fruid import get_fruid
+
+WEDGES = ["Wedge-AC-F", "Wedge-DC-F"]
+
+
+def read_gpio_sysfs(gpio):
+ with open('/sys/class/gpio/gpio%d/value' % gpio, 'r') as f:
+ val_string = f.read()
+ if val_string == '1\n':
+ return 1
+ if val_string == '0\n':
+ return 0
+ return None
+
+
+def read_wedge_back_ports():
+ bhinfo = { "port_1": { "pin_1": read_gpio_sysfs(120),
+ "pin_2": read_gpio_sysfs(121),
+ "pin_3": read_gpio_sysfs(122),
+ "pin_4": read_gpio_sysfs(123)
+ },
+ "port_2": { "pin_1": read_gpio_sysfs(124),
+ "pin_2": read_gpio_sysfs(125),
+ "pin_3": read_gpio_sysfs(126),
+ "pin_4": read_gpio_sysfs(52)
+ }
+ }
+ return bhinfo
+
+
+def get_gpios():
+ fruinfo = get_fruid()
+ gpioinfo = {}
+ if fruinfo["Information"]["Product Name"] in WEDGES:
+ gpioinfo["back_ports"] = read_wedge_back_ports()
+ return gpioinfo
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