Dynamic device type (#28011)

* tizi_device_type

* fix test

* also change it in the C versin
old-commit-hash: 21bcd7db630d5abb41f00e3e9d3a025c26337a92

system/hardware/tici/hardware.h

@@ -16,8 +16,16 @@ public:
   static std::string get_os_version() {
     return "AGNOS " + util::read_file("/VERSION");
   };
-  static std::string get_name() { return "tici"; };
-  static cereal::InitData::DeviceType get_device_type() { return cereal::InitData::DeviceType::TICI; };
+
+  static std::string get_name() {
+    std::string devicetree_model = util::read_file("/sys/firmware/devicetree/base/model");
+    return (devicetree_model.find("tizi") != std::string::npos) ? "tizi" : "tici";
+  };
+
+  static cereal::InitData::DeviceType get_device_type() {
+    return (get_name() == "tizi") ? cereal::InitData::DeviceType::TIZI : cereal::InitData::DeviceType::TICI;
+  };
+
   static int get_voltage() { return std::atoi(util::read_file("/sys/class/hwmon/hwmon1/in1_input").c_str()); };
   static int get_current() { return std::atoi(util::read_file("/sys/class/hwmon/hwmon1/curr1_input").c_str()); };
 

system/hardware/tici/hardware.py

@@ -4,7 +4,7 @@ import os
 import subprocess
 import time
 from enum import IntEnum
-from functools import cached_property
+from functools import cached_property, lru_cache
 from pathlib import Path
 
 from cereal import log
@@ -91,8 +91,12 @@ class Tici(HardwareBase):
   def amplifier(self):
     return Amplifier()
 
-  @cached_property
-  def model(self):
+  def get_os_version(self):
+    with open("/VERSION") as f:
+      return f.read().strip()
+
+  @lru_cache
+  def get_device_type(self):
     with open("/sys/firmware/devicetree/base/model") as f:
       model = f.read().strip('\x00')
     model = model.split('comma ')[-1]
@@ -101,13 +105,6 @@ class Tici(HardwareBase):
       model = 'tici'
     return model
 
-  def get_os_version(self):
-    with open("/VERSION") as f:
-      return f.read().strip()
-
-  def get_device_type(self):
-    return "tici"
-
   def get_sound_card_online(self):
     return (os.path.isfile('/proc/asound/card0/state') and
             open('/proc/asound/card0/state').read().strip() == 'ONLINE')
@@ -424,7 +421,7 @@ class Tici(HardwareBase):
     # amplifier, 100mW at idle
     self.amplifier.set_global_shutdown(amp_disabled=powersave_enabled)
     if not powersave_enabled:
-      self.amplifier.initialize_configuration(self.model)
+      self.amplifier.initialize_configuration(self.get_device_type())
 
     # *** CPU config ***
 
@@ -445,7 +442,7 @@ class Tici(HardwareBase):
     # boardd core
     affine_irq(4, "spi_geni")         # SPI
     affine_irq(4, "xhci-hcd:usb3")    # aux panda USB (or potentially anything else on USB)
-    if "tici" in self.model:
+    if "tici" in self.get_device_type():
       affine_irq(4, "xhci-hcd:usb1")  # internal panda USB
 
     # camerad core
@@ -461,7 +458,7 @@ class Tici(HardwareBase):
       return 0
 
   def initialize_hardware(self):
-    self.amplifier.initialize_configuration(self.model)
+    self.amplifier.initialize_configuration(self.get_device_type())
 
     # Allow thermald to write engagement status to kmsg
     os.system("sudo chmod a+w /dev/kmsg")

system/hardware/tici/tests/test_amplifier.py

@@ -38,7 +38,7 @@ class TestAmplifier(unittest.TestCase):
 
   def test_init(self):
     amp = Amplifier(debug=True)
-    r = amp.initialize_configuration(Tici().model)
+    r = amp.initialize_configuration(Tici().get_device_type())
     assert r
     self._check_for_i2c_errors(False)
 
@@ -59,7 +59,7 @@ class TestAmplifier(unittest.TestCase):
       time.sleep(random.randint(0, 5))
 
       amp = Amplifier(debug=True)
-      r = amp.initialize_configuration(Tici().model)
+      r = amp.initialize_configuration(Tici().get_device_type())
       assert r
 
     # make sure we're a good test