klippy: Log the type of cpu the host is running on

Report in the log the host CPU type and count.  This helps distinguish
between different rpi versions when debugging the log from a problem
report.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>

2 files changed, 16 insertions, 0 deletions

diff --git a/klippy/klippy.py b/klippy/klippy.py
index 216aff7b..abd92208 100644
--- a/klippy/klippy.py
+++ b/klippy/klippy.py
@@ -284,6 +284,7 @@ def main():
     software_version = util.get_git_version()
     if debugoutput is None:
         logging.info("Git version: %s" % (repr(software_version),))
+        logging.info("CPU: %s" % (util.get_cpu_info(),))
 
     # Start firmware
     while 1:
diff --git a/klippy/util.py b/klippy/util.py
index 7afb3d1c..2e68dcd1 100644
--- a/klippy/util.py
+++ b/klippy/util.py
@@ -37,6 +37,21 @@ def create_pty(ptyname):
     termios.tcsetattr(mfd, termios.TCSADRAIN, old)
     return mfd
 
+def get_cpu_info():
+    try:
+        f = open('/proc/cpuinfo', 'rb')
+        data = f.read()
+        f.close()
+    except OSError:
+        logging.debug("Exception on read /proc/cpuinfo: %s" % (
+            traceback.format_exc(),))
+        return "?"
+    lines = [l.split(':', 1) for l in data.split('\n')]
+    lines = [(l[0].strip(), l[1].strip()) for l in lines if len(l) == 2]
+    core_count = [k for k, v in lines].count("processor")
+    model_name = dict(lines).get("model name", "?")
+    return "%d core %s" % (core_count, model_name)
+
 def get_git_version():
     # Obtain version info from "git" program
     gitdir = os.path.join(sys.path[0], '..', '.git')