Add support for XO 1.75

The hardware specific information has been moved from '/ofw' to
'/proc/device-tree'. This has an effect on the Control Panel
where we display the serial number and the firmware number.
Furthermore the registration code needs to be aware of the possible
new place in order to send the serial number and UUID during
authentication.

Signed-off-by: Simon Schampijer <simon@laptop.org>
Reviewed-by: Gonzalo Odiard <gonzalo@laptop.org>
Tested-by: Gonzalo Odiard <gonzalo@laptop.org>

1 files changed, 17 insertions, 7 deletions

diff --git a/src/jarabe/desktop/schoolserver.py b/src/jarabe/desktop/schoolserver.py
index 634817b..a4a401a 100644
--- a/src/jarabe/desktop/schoolserver.py
+++ b/src/jarabe/desktop/schoolserver.py
@@ -33,6 +33,10 @@ from sugar.profile import get_profile
 
 _REGISTER_URL = 'http://schoolserver:8080/'
 _REGISTER_TIMEOUT = 8
+_OFW_TREE = '/ofw'
+_PROC_TREE = '/proc/device-tree'
+_MFG_SN = 'mfg-data/SN'
+_MFG_UUID = 'mfg-data/U#'
 
 
 def _generate_serial_number():
@@ -107,13 +111,16 @@ def register_laptop(url=_REGISTER_URL):
     client = gconf.client_get_default()
 
     if _have_ofw_tree():
-        sn = _read_ofw('mfg-data/SN')
-        uuid_ = _read_ofw('mfg-data/U#')
-        sn = sn or 'SHF00000000'
-        uuid_ = uuid_ or '00000000-0000-0000-0000-000000000000'
+        sn = _read_mfg_data(os.path.join(_OFW_TREE, _MFG_SN))
+        uuid_ = _read_mfg_data(os.path.join(_PROC_TREE, _MFG_UUID))
+    elif _have_proc_device_tree():
+        sn = _read_mfg_data(os.path.join(_PROC_TREE, _MFG_SN))
+        uuid_ = _read_mfg_data(os.path.join(_PROC_TREE, _MFG_UUID))
     else:
         sn = _generate_serial_number()
         uuid_ = str(uuid.uuid1())
+    sn = sn or 'SHF00000000'
+    uuid_ = uuid_ or '00000000-0000-0000-0000-000000000000'
 
     setting_name = '/desktop/sugar/collaboration/jabber_server'
     jabber_server = client.get_string(setting_name)
@@ -150,11 +157,14 @@ def register_laptop(url=_REGISTER_URL):
 
 
 def _have_ofw_tree():
-    return os.path.exists('/ofw')
+    return os.path.exists(_OFW_TREE)
 
 
-def _read_ofw(path):
-    path = os.path.join('/ofw', path)
+def _have_proc_device_tree():
+    return os.path.exists(_PROC_TREE)
+
+
+def _read_mfg_data(path):
     if not os.path.exists(path):
         return None
     fh = open(path, 'r')