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Import of the watch repository from Pebble
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Matthieu Jeanson
Katharine Berry
commit
3b92768480
10334 changed files with 2564465 additions and 0 deletions
320
tools/power_monitor/power_monitor.py
Executable file
320
tools/power_monitor/power_monitor.py
Executable file
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#!/usr/bin/env python
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# Copyright 2024 Google LLC
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# To use this script:
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# - You need to install libmpsse
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# + svn checkout http://libmpsse.googlecode.com/svn/trunk/ libmpsse-read-only
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# + You will have to build the module following the instructions in docs/INSTALL
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# + Note: For osx, the makefile calls 'install -D', which is an invalid argument so
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# you need to replace it doing the following from the src/ directory:
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# - sed -i '.backup' 's/install -D/install/' Makefile
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# - For OSX, you need to unload the FTDI driver when you are using the power stats tool:
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# sudo kextunload -b com.FTDI.driver.FTDIUSBSerialDriver
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# (use kextload to reload once you are done to get console to work again)
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import argparse
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import atexit
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import csv
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import signal
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import sys
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import time
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from ina226 import Ina226
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from mcp23009 import Mcp23009
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PowerRailMonitors = {
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"snowy": {
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# TODO: [PBL-36477] These resolutions ought to be calibrated.
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'VBAT': Ina226('VBAT', 0x80, 200.0, 0.47),
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'1V8': Ina226('1V8', 0x82, 100.0, 0.47),
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'1V2_MCU': Ina226('1V2_MCU', 0x84, 100.0, 0.47),
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'1V2_FPGA': Ina226('1V2_FPGA', 0x86, 100.0, 0.47),
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'1V8_BT': Ina226('1V8_BT', 0x88, 100.0, 0.47),
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'SPARE1': Ina226('SPARE1', 0x8A, 100.0, 0.47),
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'SPARE2': Ina226('SPARE2', 0x8C, 100.0, 0.47),
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'VUSB': Ina226('VUSB', 0x8E, 200.0, 0.47)
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},
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"silk": {
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# TODO: [PBL-36477] These resolutions ought to be calibrated.
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'VBAT': Ina226('VBAT', 0x80, 200.0, 0.47),
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'1V8': Ina226('1V8', 0x82, 100.0, 0.47),
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'1V8_MCU': Ina226('1V8_MCU', 0x84, 100.0, 0.47),
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'3V0_LCD': Ina226('3V0_LCD', 0x86, 100.0, 0.47),
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'1V8_BT': Ina226('1V8_BT', 0x88, 100.0, 0.47),
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'SPARE1': Ina226('SPARE1', 0x8A, 100.0, 0.47),
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'SPARE2': Ina226('SPARE2', 0x8C, 100.0, 0.47),
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'VUSB': Ina226('VUSB', 0x8E, 100.0, 0.47),
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'HRM': Ina226('HRM', 0x90, 200.0, 0.47),
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},
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"robert": {
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# TODO: [PBL-36477] These resolutions ought to be calibrated.
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'VBAT': Ina226('VBAT', 0x80, 200.0, 0.47),
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'1V8': Ina226('1V8', 0x82, 100.0, 0.47),
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'1V2_MCU': Ina226('1V2_MCU', 0x84, 100.0, 0.47),
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'1V2_FPGA': Ina226('1V2_FPGA', 0x86, 100.0, 0.47),
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'1V8_BT': Ina226('1V8_BT', 0x88, 100.0, 0.47),
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'SPARE1': Ina226('SPARE1', 0x8A, 100.0, 0.47),
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'SPARE2': Ina226('SPARE2', 0x8C, 100.0, 0.47),
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'VUSB': Ina226('VUSB', 0x8E, 100.0, 0.47),
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}
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}
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MCP = Mcp23009(0x4E)
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class MatplotlibCurrentGraph:
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"""Plots current readings using the Matplotlib library
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"""
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def __init__(self):
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import matplotlib.pyplot as plt
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import numpy as np
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def exit_gracefully(signal, frame):
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plt.close("all")
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sys.exit(0)
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signal.signal(signal.SIGINT, exit_gracefully)
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f = plt.figure()
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f.show()
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self.plt = plt
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self.np = np
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self.graph_data = np.array([])
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self.roll_at = 60000
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self.samples_to_batch = 100
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self.ax = f.add_subplot(111)
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self.start_time = time.time()
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def graph_function(self, read_input, count):
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if len(self.graph_data) < self.roll_at:
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self.graph_data = self.np.append(self.graph_data, read_input[1])
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else:
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self.graph_data = self.np.roll(self.graph_data, -1)
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self.graph_data[self.roll_at - 1] = read_input[1]
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if count % self.samples_to_batch == 0:
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print "%.3f secs to collect last %d samples" % \
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(time.time() - self.start_time, self.samples_to_batch)
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self.plt.clf()
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self.plt.plot(list(self.graph_data), 'b')
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avg_all = "Avg: %.3f mA" % (self.np.average(self.graph_data) / 1000)
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avg_last_set = "Last Collection Avg: %.3f uA" % (self.np.average(self.graph_data[-100:]))
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self.plt.text(0.9, 0.9, avg_all,
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horizontalalignment='center',
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verticalalignment='center',
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transform=self.ax.transAxes)
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self.plt.text(0.3, 0.95, avg_last_set,
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horizontalalignment='center',
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verticalalignment='center',
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transform=self.ax.transAxes)
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self.plt.draw()
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self.plt.pause(.01) # a brief stall of the UI thread lets you zoom in, etc
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self.start_time = time.time()
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def auto_int(x):
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return int(x, 0)
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class BokehCurrentGraph:
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"""Plots current readings using the Bokeh library
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"""
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def __init__(self):
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from bokeh.client import push_session
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from bokeh.plotting import figure, curdoc
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from bokeh.driving import cosine
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import numpy as np
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p = figure()
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self.avg_text = p.text(1, 1, ["Computing average"])
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self.avg_ds = self.avg_text.data_source
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x = np.linspace(0, 4*3.14, 80)
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y = np.sin(x)
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r2 = p.line(x, y, color="navy", line_width=4)
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self.ds = r2.data_source
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self.np = np
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self.graph_data = np.array([])
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self.roll_at = 10000
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self.samples_to_batch = 20
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self.start_time = time.time()
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self.session = push_session(curdoc())
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self.session.show(p)
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def graph_function(self, read_input, count):
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if len(self.graph_data) < self.roll_at:
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self.graph_data = self.np.append(self.graph_data, read_input[1])
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else:
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self.graph_data = self.np.roll(self.graph_data, -1)
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self.graph_data[self.roll_at - 1] = read_input[1]
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if count % self.samples_to_batch == 0:
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print "%.3f secs to collect last %d samples" % \
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(time.time() - self.start_time, self.samples_to_batch)
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avg_all = "Avg: %.3f ma" % (self.np.average(self.graph_data) / 1000)
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avg_last_set = "Last Collection Avg: %.3f mA %s" % \
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(self.np.average(self.graph_data[-100:])/1000, avg_all)
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self.ds.data["y"] = list(self.graph_data)
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self.ds.data["x"] = self.np.linspace(1, len(self.graph_data), len(self.graph_data))
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self.ds._dirty = True
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self.avg_text.glyph.y = self.np.max(self.graph_data) * 0.99
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self.avg_ds.data["text"] = [avg_last_set]
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self.avg_ds._dirty = True
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self.start_time = time.time()
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def enabled_bool(str):
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if str == 'enable':
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return True
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if str == 'disable':
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return False
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raise ValueError('Invalid state %s' % str)
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if __name__ == "__main__":
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PlatformNames = sorted(PowerRailMonitors.keys())
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BackButtonNames = ['back', 'b']
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UpButtonNames = ['up', 'u']
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SelectButtonNames = ['select', 's']
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DownButtonNames = ['down', 'd']
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NoneButtonNames = ['none', 'n']
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ButtonNames = BackButtonNames + UpButtonNames + SelectButtonNames + DownButtonNames + NoneButtonNames
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parser = argparse.ArgumentParser(description='INA226 Power Monitor')
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parser.add_argument('--vid', help='FTDI USB Vendor ID', default=0x0403, type=auto_int)
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parser.add_argument('--pid', help='FTDI USB Product ID', default=0x6011, type=auto_int)
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parser.add_argument('--index', help='FTDI Device Index', default=0)
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# Snowy 4232 chip uses interface=2
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parser.add_argument('--interface', choices=[1,2,3,4], default=2,
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help='FT4232 Interface (default to interface B = 1)')
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parser.add_argument('-o', '--outfile', help='Output CSV file for power data')
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parser.add_argument('-r', '--rails', nargs='+', help='The Power rails to measure')
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parser.add_argument('-c', '--continuous', help='Continuously monitor the current', action='store_true')
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parser.add_argument('--avg', action='store_true', help='calculate the average of the rails')
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parser.add_argument('-g', '--graph', help='locally graph power data', action='store_true')
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parser.add_argument('-b', '--buttons', nargs='+', choices=ButtonNames, help=
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'Push these buttons, release the rest. If this argument is omitted, the buttons are left as is')
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# LEDs are currently disabled because I am dumb and made a mistake in the schematic
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# parser.add_argument('--leds', nargs='+', choices=LedNames, help='Turn on these LEDs,
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# turn off the rest. If this argument is omitted, the LEDs are left as is')
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parser.add_argument('--usb_pwr', choices=['enable', 'disable'], help='Turn on or off USB power')
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parser.add_argument('--acc_pu', choices=['enable', 'disable'], help='enable/disable the accessory pull-up')
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parser.add_argument('-f', '--fast', help='Use libmpsse instead of pyftdi which collects samples ~6x faster at '\
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'the cost of long term stability', action='store_true')
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parser.add_argument('--platform', required=True, choices=PlatformNames, help='Specify the platform being measured on.')
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parser.add_argument('--bokeh', action='store_true',
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help='Live plot with bokeh instead of matplotlib (it\'s is faster!)')
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args = parser.parse_args()
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PlatformRails = PowerRailMonitors[args.platform]
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RailNames = sorted(PlatformRails.keys())
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if args.rails:
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for r in args.rails:
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if r not in RailNames:
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print 'Rail "{}" not valid for platform "{}"'.format(r, args.platform)
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print 'Valid rails are: {}'.format(RailNames)
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sys.exit(1)
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# local graphing setup
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graph = None
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if args.graph:
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if args.bokeh:
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graph = BokehCurrentGraph()
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else:
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graph = MatplotlibCurrentGraph()
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# Open the MPSSE connection and setup I2C
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if args.fast:
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from mpsse import *
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mode = I2C
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frequency = ONE_HUNDRED_KHZ
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else:
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from i2c import *
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mode = 0
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frequency = 100000
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I2CBus = MPSSE()
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I2CBus.Open(vid=args.vid,
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pid=args.pid,
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mode=mode,
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frequency=frequency,
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interface=args.interface,
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index=args.index)
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atexit.register(I2CBus.Close)
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MCP.setup(I2CBus)
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# Toggling USB power
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if args.usb_pwr:
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MCP.setUsbChargeEn(enabled_bool(args.usb_pwr))
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# Toggle accessory pull-up
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if args.acc_pu:
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MCP.setAccessoryPullup(enabled_bool(args.acc_pu))
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# Change button states
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if args.buttons:
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up = down = back = select = False
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for button in args.buttons:
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if button in UpButtonNames:
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up = True
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elif button in DownButtonNames:
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down = True
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elif button in BackButtonNames:
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back = True
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elif button in SelectButtonNames:
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select = True
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MCP.setButtons(up=up, down=down, select=select, back=back)
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# Power Monitoring
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if args.rails:
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for rail in args.rails:
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sensor = PlatformRails[rail]
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sensor.setupRail(I2CBus)
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totals = {}
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averages = {}
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for rail in args.rails:
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totals[rail] = 0
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averages[rail] = 0
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count = 0
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def read_currents():
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millis = int(round(time.time() * 1000))
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read_tuple = [millis]+[PlatformRails[rail].readCurrent() for rail in args.rails]
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return read_tuple
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if args.outfile:
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with open(args.outfile, 'wb') as csvfile:
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powercsv = csv.writer(csvfile)
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powercsv.writerow(args.rails)
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powercsv.writerow(read_currents())
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while args.rails and args.continuous:
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powercsv.writerow(read_currents())
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else:
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print args.rails
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while args.continuous:
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readings = read_currents()
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count += 1
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if graph is not None:
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graph.graph_function(readings, count-1)
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elif args.avg:
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for rail in args.rails:
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totals[rail] += readings[args.rails.index(rail)+1]
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averages[rail] = totals[rail]/count
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print averages
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else:
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print readings
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