# The MIT License (MIT) # # Copyright (c) 2020 Melissa LeBlanc-Williams for Adafruit Industries # # Permission is hereby granted, free of charge, to any person obtaining a copy # of this software and associated documentation files (the "Software"), to deal # in the Software without restriction, including without limitation the rights # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell # copies of the Software, and to permit persons to whom the Software is # furnished to do so, subject to the following conditions: # # The above copyright notice and this permission notice shall be included in # all copies or substantial portions of the Software. # # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN # THE SOFTWARE. """ `adafruit_platformdetect.chip` ================================================================================ Attempt detection of current chip / CPU * Author(s): Melissa LeBlanc-Williams Implementation Notes -------------------- **Software and Dependencies:** * Linux and Python 3.5 or Higher """ # imports import os import sys from adafruit_platformdetect.constants import chips __version__ = "0.0.0-auto.0" __repo__ = "https://github.com/adafruit/Adafruit_CircuitPython_PlatformDetect.git" class Chip: """Attempt detection of current chip / CPU.""" def __init__(self, detector): self.detector = detector @property def id( self, ): # pylint: disable=invalid-name,too-many-branches,too-many-return-statements """Return a unique id for the detected chip, if any.""" # There are some times we want to trick the platform detection # say if a raspberry pi doesn't have the right ID, or for testing try: return os.environ["BLINKA_FORCECHIP"] except KeyError: # no forced chip, continue with testing! pass # Special cases controlled by environment var if os.environ.get("BLINKA_FT232H"): from pyftdi.usbtools import UsbTools # look for it based on PID/VID count = len(UsbTools.find_all([(0x0403, 0x6014)])) if count == 0: raise RuntimeError( "BLINKA_FT232H environment variable " + "set, but no FT232H device found" ) return chips.FT232H if os.environ.get("BLINKA_MCP2221"): import hid # look for it based on PID/VID for dev in hid.enumerate(): if dev["vendor_id"] == 0x04D8 and dev["product_id"] == 0x00DD: return chips.MCP2221 raise RuntimeError( "BLINKA_MCP2221 environment variable " + "set, but no MCP2221 device found" ) if os.environ.get("BLINKA_GREATFET"): import usb if usb.core.find(idVendor=0x1D50, idProduct=0x60E6) is not None: return chips.LPC4330 raise RuntimeError( "BLINKA_GREATFET environment variable " + "set, but no GreatFET device found" ) if os.environ.get("BLINKA_NOVA"): return chips.BINHO platform = sys.platform if platform in ("linux", "linux2"): return self._linux_id() if platform == "esp8266": return chips.ESP8266 if platform == "samd21": return chips.SAMD21 if platform == "pyboard": return chips.STM32 # nothing found! return None # pylint: enable=invalid-name def _linux_id(self): # pylint: disable=too-many-branches,too-many-statements # pylint: disable=too-many-return-statements """Attempt to detect the CPU on a computer running the Linux kernel.""" if self.detector.check_dt_compatible_value("qcom,apq8016"): return chips.APQ8016 if self.detector.check_dt_compatible_value("fu500"): return chips.HFU540 if self.detector.check_dt_compatible_value("sun8i-a33"): return chips.A33 if self.detector.check_dt_compatible_value("rockchip,rk3308"): return chips.RK3308 linux_id = None hardware = self.detector.get_cpuinfo_field("Hardware") if hardware is None: vendor_id = self.detector.get_cpuinfo_field("vendor_id") if vendor_id == "AuthenticAMD": model_name = self.detector.get_cpuinfo_field("model name").upper() if "RYZEN EMBEDDED V1605B" in model_name: linux_id = chips.RYZEN_V1605B else: linux_id = chips.GENERIC_X86 elif vendor_id == "GenuineIntel": linux_id = chips.GENERIC_X86 compatible = self.detector.get_device_compatible() if compatible and "tegra" in compatible: compats = compatible.split("\x00") if "nvidia,tegra210" in compats: linux_id = chips.T210 elif "nvidia,tegra186" in compats: linux_id = chips.T186 elif "nvidia,tegra194" in compats: linux_id = chips.T194 if compatible and "imx8m" in compatible: linux_id = chips.IMX8MX if compatible and "odroid-c2" in compatible: linux_id = chips.S905 if compatible and "amlogic" in compatible: compatible_list = ( compatible.replace("\x00", ",").replace(" ", "").split(",") ) if "g12a" in compatible_list: # 'sm1' is correct for S905X3, but some kernels use 'g12a' return chips.S905X3 if "g12b" in compatible_list: return chips.S922X if "sm1" in compatible_list: return chips.S905X3 if compatible and "sun50i-a64" in compatible: linux_id = chips.A64 if compatible and "odroid-xu4" in compatible: linux_id = chips.EXYNOS5422 cpu_model = self.detector.get_cpuinfo_field("cpu model") if cpu_model is not None: if "MIPS 24Kc" in cpu_model: linux_id = chips.MIPS24KC elif "MIPS 24KEc" in cpu_model: linux_id = chips.MIPS24KEC # we still haven't identified the hardware, so # convert it to a list and let the remaining # conditions attempt. if not linux_id: hardware = [ entry.replace("\x00", "") for entry in compatible.split(",") ] if not linux_id: if "AM33XX" in hardware: linux_id = chips.AM33XX elif "sun8i" in hardware: linux_id = chips.SUN8I elif "ODROIDC" in hardware: linux_id = chips.S805 elif "ODROID-C2" in hardware: linux_id = chips.S905 elif "ODROID-N2" in hardware: linux_id = chips.S922X elif "ODROID-C4" in hardware: linux_id = chips.S905X3 elif "ODROID-XU4" in hardware: linux_id = chips.EXYNOS5422 elif "SAMA5" in hardware: linux_id = chips.SAMA5 elif "Pinebook" in hardware: linux_id = chips.A64 elif "sun50iw1p1" in hardware: linux_id = chips.A64 elif "Xilinx Zynq" in hardware: compatible = self.detector.get_device_compatible() if compatible and "xlnx,zynq-7000" in compatible: linux_id = chips.ZYNQ7000 else: if isinstance(hardware, str): if hardware.upper() in chips.BCM_RANGE: linux_id = chips.BCM2XXX elif isinstance(hardware, list): if {model.upper() for model in hardware} & chips.BCM_RANGE: linux_id = chips.BCM2XXX return linux_id def __getattr__(self, attr): """ Detect whether the given attribute is the currently-detected chip. See list of constants at the top of this module for available options. """ if self.id == attr: return True return False