Merge "lisa: add functions for tuning wahoo touch boosts"

lisa/targetdev/powerhint.py

@@ -0,0 +1,55 @@
+import xml.etree.ElementTree as ET
+
+
+def restart_power_hal(target):
+  """Kill power HAL service so it can pick up new values in powerhint.xml."""
+  target.execute('pkill android\.hardware\.power')
+
+
+def set_touch_param(target, opcode, new_val):
+  """Set a new value for the touch hint parameter with the specified opcode."""
+  hinttype = '0x1A00'
+
+  # Get current powerhint.xml file
+  device_path = '/vendor/etc/powerhint.xml'
+  host_path = '/tmp/powerhint.xml'
+  target.pull(device_path, host_path)
+
+  # Replace current parameter value
+  tree = ET.parse(host_path)
+  xpath = './Hint[@type="{}"]/Resource[@opcode="{}"]'.format(hinttype, opcode)
+  tree.findall(xpath)[0].set('value', '{:#x}'.format(new_val))
+
+  # Write new powerhint.xml file to device
+  tree.write(host_path)
+  target.push(host_path, device_path)
+
+  # Restart power HAL to pick up new value
+  restart_power_hal(target)
+
+
+def set_touchboost(target, boost=50):
+  """Change the top-app schedtune.boost value to use after touch events."""
+  opcode = '0x42C18000'
+  if boost < 0:
+    boost = 100-boost
+  set_touch_param(target, opcode, boost)
+
+
+def set_min_freq(target, cluster, freq=1100):
+  """Change the CPU cluster min frequency (in Mhz) to use after touch events."""
+  opcode = '0x40800000' if cluster == 'big' else '0x40800100'
+  set_touch_param(target, opcode, freq)
+
+
+def set_cpubw_hysteresis(target, enable=False):
+  """Set whether to leave CPUBW hysteresis enabled after touch events."""
+  opcode = '0x4180C000'
+  enable_num = 1 if enable else 0
+  set_touch_param(target, opcode, enable_num)
+
+
+def set_cpubw_min_freq(target, freq=51):
+  """Set CPUBW min freq used after touch events. See mapping in msm8998.dtsi."""
+  opcode = '0x41800000'
+  set_touch_param(target, opcode, freq)