feat(core): allow reading out of telemetry data

[no changelog]

core/SConscript.firmware

@@ -67,6 +67,7 @@ FEATURES_WANTED = [
     "serial_number",
     "storage",
     "suspend",
+    'telemetry',
     "tropic",
     "usb",
     "usb_iface_wire",
@@ -748,6 +749,8 @@ if FROZEN:
         ))
     )
     SOURCE_PY.extend(Glob(SOURCE_PY_DIR + 'apps/misc/*.py'))
+    if 'telemetry' in FEATURES_AVAILABLE:
+        SOURCE_PY.extend(Glob(SOURCE_PY_DIR + 'apps/telemetry/*.py'))
     SOURCE_PY.extend(Glob(SOURCE_PY_DIR + 'apps/bitcoin/*.py'))
     SOURCE_PY.extend(Glob(SOURCE_PY_DIR + 'apps/bitcoin/*/*.py',
         exclude=[

core/embed/rust/Cargo.toml

@@ -54,6 +54,7 @@ smp = []
 tropic = []
 serial_number = []
 storage = []
+telemetry = []
 translations = ["crypto"]
 secmon_layout = []
 dbg_console = []

core/embed/upymod/modtrezorutils/modtrezorutils.c

@@ -46,6 +46,10 @@
 #include "blake2s.h"
 #include "memzero.h"
 
+#ifdef USE_TELEMETRY
+#include <sec/telemetry.h>
+#endif
+
 #ifdef USE_BLE
 #include <io/ble.h>
 #endif
@@ -63,6 +67,30 @@
 
 /// from trezor import utils
 
+#ifdef USE_TELEMETRY
+/// def telemetry_get() -> tuple[int, int, int] | None:
+///     """
+///     Retrieves the stored telemetry data. Returns a tuple
+///     (min_temp_milli_c, max_temp_milli_c, battery_errors)
+///     or None if telemetry is not available.
+///     """
+STATIC mp_obj_t mod_trezorutils_telemetry_get(void) {
+  telemetry_data_t data;
+  if (!telemetry_get(&data)) {
+    return mp_const_none;
+  }
+
+  mp_obj_t tuple[3];
+  tuple[0] = mp_obj_new_int((int32_t)(data.min_temp_c * 1000.0f));
+  tuple[1] = mp_obj_new_int((int32_t)(data.max_temp_c * 1000.0f));
+  tuple[2] = mp_obj_new_int(data.battery_errors.all);
+
+  return mp_obj_new_tuple(3, tuple);
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_0(mod_trezorutils_telemetry_get_obj,
+                                 mod_trezorutils_telemetry_get);
+#endif
+
 /// def consteq(sec: AnyBytes, pub: AnyBytes) -> bool:
 ///     """
 ///     Compares the private information in `sec` with public, user-provided
@@ -763,6 +791,8 @@ STATIC const mp_obj_tuple_t mod_trezorutils_version_obj = {
 /// """Whether a debug console is enabled."""
 /// USE_APP_LOADING: bool
 /// """Whether the firmware supports loading 3rd-party applications."""
+/// USE_TELEMETRY: bool
+/// """Whether a telemetry is supported."""
 /// MODEL: str
 /// """Model name."""
 /// MODEL_FULL_NAME: str
@@ -831,6 +861,13 @@ STATIC const mp_rom_map_elem_t mp_module_trezorutils_globals_table[] = {
      MP_ROM_PTR(&mod_trezorutils_bootloader_locked_obj)},
     {MP_ROM_QSTR(MP_QSTR_notify_send),
      MP_ROM_PTR(&mod_trezorutils_notify_send_obj)},
+#ifdef USE_TELEMETRY
+    {MP_ROM_QSTR(MP_QSTR_telemetry_get),
+     MP_ROM_PTR(&mod_trezorutils_telemetry_get_obj)},
+    {MP_ROM_QSTR(MP_QSTR_USE_TELEMETRY), mp_const_true},
+#else
+    {MP_ROM_QSTR(MP_QSTR_USE_TELEMETRY), mp_const_false},
+#endif
     {MP_ROM_QSTR(MP_QSTR_NOTIFY_BOOT), MP_ROM_INT(NOTIFY_BOOT)},
     {MP_ROM_QSTR(MP_QSTR_NOTIFY_UNLOCK), MP_ROM_INT(NOTIFY_UNLOCK)},
     {MP_ROM_QSTR(MP_QSTR_NOTIFY_LOCK), MP_ROM_INT(NOTIFY_LOCK)},

core/mocks/generated/trezorutils.pyi

@@ -10,6 +10,15 @@ def meminfo(filename: str | None) -> None:
 from trezor import utils
 
 
+# upymod/modtrezorutils/modtrezorutils.c
+def telemetry_get() -> tuple[int, int, int] | None:
+    """
+    Retrieves the stored telemetry data. Returns a tuple
+    (min_temp_milli_c, max_temp_milli_c, battery_errors)
+    or None if telemetry is not available.
+    """
+
+
 # upymod/modtrezorutils/modtrezorutils.c
 def consteq(sec: AnyBytes, pub: AnyBytes) -> bool:
     """
@@ -268,6 +277,8 @@ USE_DBG_CONSOLE: bool
 """Whether a debug console is enabled."""
 USE_APP_LOADING: bool
 """Whether the firmware supports loading 3rd-party applications."""
+USE_TELEMETRY: bool
+"""Whether a telemetry is supported."""
 MODEL: str
 """Model name."""
 MODEL_FULL_NAME: str

core/site_scons/models/T3W1/trezor_t3w1_revC.py

@@ -241,6 +241,7 @@ def configure(
         sources += ["embed/sec/telemetry/telemetry.c"]
         paths += ["embed/sec/telemetry/inc"]
         defines += [("USE_TELEMETRY", "1")]
+        features_available.append("telemetry")
 
     defines += [
         "FRAMEBUFFER",

core/src/apps/telemetry/get_telemetry.py

@@ -0,0 +1,20 @@
+from typing import TYPE_CHECKING
+
+if TYPE_CHECKING:
+    from trezor.messages import Telemetry, TelemetryGet
+
+
+async def get_telemetry(msg: TelemetryGet) -> Telemetry:
+    from trezor.messages import Telemetry
+    from trezor.utils import telemetry_get
+
+    data = telemetry_get()
+    if data:
+        min_temp_c, max_temp_c, battery_errors = data
+        return Telemetry(
+            min_temp_c=min_temp_c,
+            max_temp_c=max_temp_c,
+            battery_errors=battery_errors,
+        )
+    else:
+        return Telemetry()

core/src/apps/workflow_handlers.py

@@ -64,6 +64,9 @@ def _find_message_handler_module(msg_type: int) -> str:
     if msg_type == MessageType.ShowDeviceTutorial:
         return "apps.management.show_tutorial"
 
+    if utils.USE_TELEMETRY and msg_type == MessageType.TelemetryGet:
+        return "apps.telemetry.get_telemetry"
+
     if utils.USE_BACKLIGHT and msg_type == MessageType.SetBrightness:
         return "apps.management.set_brightness"
 

core/src/trezor/utils.py

@@ -33,6 +33,7 @@ from trezorutils import (  # noqa: F401
     USE_RGB_LED,
     USE_SD_CARD,
     USE_SERIAL_NUMBER,
+    USE_TELEMETRY,
     USE_THP,
     USE_TOUCH,
     USE_TROPIC,
@@ -57,6 +58,9 @@ from trezorutils import (  # noqa: F401
     unit_production_date,
 )
 
+if USE_TELEMETRY:
+    from trezorutils import telemetry_get  # noqa: F401
+
 if USE_NRF:
     from trezorutils import nrf_get_version  # noqa: F401