implement suggested changes

- update the docs
- split out common `watchdog_reset`
- revert to using `None` instead of `WatchDogMode.NONE`

locale/circuitpython.pot

@@ -200,6 +200,10 @@ msgstr ""
 msgid "%q must be <= %u"
 msgstr ""
 
+#: py/argcheck.c
+msgid "%q must be >= %d"
+msgstr ""
+
 #: shared-bindings/analogbufio/BufferedIn.c
 msgid "%q must be a bytearray or array of type 'H' or 'B'"
 msgstr ""
@@ -447,10 +451,6 @@ msgstr ""
 msgid "A hardware interrupt channel is already in use"
 msgstr ""
 
-#: ports/espressif/common-hal/analogio/AnalogIn.c
-msgid "ADC2 is being used by WiFi"
-msgstr ""
-
 #: ports/raspberrypi/common-hal/wifi/Radio.c
 msgid "AP could not be started"
 msgstr ""
@@ -4185,7 +4185,8 @@ msgstr ""
 msgid "unexpected keyword argument"
 msgstr ""
 
-#: py/bc.c py/objnamedtuple.c shared-bindings/traceback/__init__.c
+#: py/argcheck.c py/bc.c py/objnamedtuple.c
+#: shared-bindings/traceback/__init__.c
 msgid "unexpected keyword argument '%q'"
 msgstr ""
 
@@ -4279,10 +4280,6 @@ msgstr ""
 msgid "value out of range of target"
 msgstr ""
 
-#: ports/espressif/common-hal/watchdog/WatchDogTimer.c
-msgid "watchdog not initialized"
-msgstr ""
-
 #: shared-bindings/is31fl3741/FrameBuffer.c
 msgid "width must be greater than zero"
 msgstr ""

ports/atmel-samd/common-hal/watchdog/WatchDogTimer.c

@@ -28,8 +28,6 @@
 
 #include "py/runtime.h"
 
-#include "shared/runtime/pyexec.h"
-
 #include "shared-bindings/watchdog/__init__.h"
 #include "shared-bindings/watchdog/WatchDogTimer.h"
 #include "shared-bindings/microcontroller/__init__.h"
@@ -82,19 +80,6 @@ void common_hal_watchdog_deinit(watchdog_watchdogtimer_obj_t *self) {
     self->mode = WATCHDOGMODE_NONE;
 }
 
-void watchdog_reset(void) {
-    watchdog_watchdogtimer_obj_t *self = &common_hal_mcu_watchdogtimer_obj;
-    if (self->mode == WATCHDOGMODE_RESET) {
-        mp_obj_t exception = pyexec_result()->exception;
-        if (exception != MP_OBJ_NULL &&
-            exception != MP_OBJ_FROM_PTR(&MP_STATE_VM(mp_kbd_exception)) &&
-            exception != MP_OBJ_FROM_PTR(&MP_STATE_VM(mp_reload_exception))) {
-            return;
-        }
-    }
-    common_hal_watchdog_deinit(self);
-}
-
 mp_float_t common_hal_watchdog_get_timeout(watchdog_watchdogtimer_obj_t *self) {
     return self->timeout;
 }

ports/atmel-samd/common-hal/watchdog/WatchDogTimer.h

@@ -28,6 +28,9 @@
 #define MICROPY_INCLUDED_RASPBERRYPI_COMMON_HAL_WATCHDOG_WATCHDOGTIMER_H
 
 #include "py/obj.h"
+
+#include "shared-module/watchdog/__init__.h"
+
 #include "shared-bindings/watchdog/WatchDogMode.h"
 #include "shared-bindings/watchdog/WatchDogTimer.h"
 
@@ -37,7 +40,4 @@ struct _watchdog_watchdogtimer_obj_t {
     watchdog_watchdogmode_t mode;
 };
 
-// This needs to be called in order to disable the watchdog
-void watchdog_reset(void);
-
 #endif // MICROPY_INCLUDED_RASPBERRYPI_COMMON_HAL_WATCHDOG_WATCHDOGTIMER_H

ports/espressif/common-hal/watchdog/WatchDogTimer.c

@@ -26,8 +26,6 @@
 
 #include "py/runtime.h"
 
-#include "shared/runtime/pyexec.h"
-
 #include "shared-bindings/watchdog/__init__.h"
 #include "shared-bindings/microcontroller/__init__.h"
 
@@ -68,19 +66,6 @@ void common_hal_watchdog_deinit(watchdog_watchdogtimer_obj_t *self) {
     }
 }
 
-void watchdog_reset(void) {
-    watchdog_watchdogtimer_obj_t *self = &common_hal_mcu_watchdogtimer_obj;
-    if (self->mode == WATCHDOGMODE_RESET) {
-        mp_obj_t exception = pyexec_result()->exception;
-        if (exception != MP_OBJ_NULL &&
-            exception != MP_OBJ_FROM_PTR(&MP_STATE_VM(mp_kbd_exception)) &&
-            exception != MP_OBJ_FROM_PTR(&MP_STATE_VM(mp_reload_exception))) {
-            return;
-        }
-    }
-    common_hal_watchdog_deinit(self);
-}
-
 static void wdt_config(uint32_t timeout, watchdog_watchdogmode_t mode) {
     // enable panic hanler in WATCHDOGMODE_RESET mode
     // initialize Task Watchdog Timer (TWDT)

ports/espressif/common-hal/watchdog/WatchDogTimer.h

@@ -28,6 +28,9 @@
 #define MICROPY_INCLUDED_ESPRESSIF_COMMON_HAL_WATCHDOG_WATCHDOGTIMER_H
 
 #include "py/obj.h"
+
+#include "shared-module/watchdog/__init__.h"
+
 #include "shared-bindings/watchdog/WatchDogMode.h"
 #include "shared-bindings/watchdog/WatchDogTimer.h"
 
@@ -37,7 +40,4 @@ struct _watchdog_watchdogtimer_obj_t {
     watchdog_watchdogmode_t mode;
 };
 
-// This needs to be called in order to disable the watchdog
-void watchdog_reset(void);
-
 #endif // MICROPY_INCLUDED_ESPRESSIF_COMMON_HAL_WATCHDOG_WATCHDOGTIMER_H

ports/nrf/common-hal/watchdog/WatchDogTimer.c

@@ -33,8 +33,6 @@
 #include "py/objproperty.h"
 #include "py/runtime.h"
 
-#include "shared/runtime/pyexec.h"
-
 #include "shared-bindings/microcontroller/__init__.h"
 #include "shared-bindings/watchdog/__init__.h"
 #include "shared-bindings/watchdog/WatchDogTimer.h"
@@ -109,19 +107,6 @@ void common_hal_watchdog_deinit(watchdog_watchdogtimer_obj_t *self) {
     self->mode = WATCHDOGMODE_NONE;
 }
 
-void watchdog_reset(void) {
-    watchdog_watchdogtimer_obj_t *self = &common_hal_mcu_watchdogtimer_obj;
-    if (self->mode == WATCHDOGMODE_RESET) {
-        mp_obj_t exception = pyexec_result()->exception;
-        if (exception != MP_OBJ_NULL &&
-            exception != MP_OBJ_FROM_PTR(&MP_STATE_VM(mp_kbd_exception)) &&
-            exception != MP_OBJ_FROM_PTR(&MP_STATE_VM(mp_reload_exception))) {
-            return;
-        }
-    }
-    common_hal_watchdog_deinit(self);
-}
-
 mp_float_t common_hal_watchdog_get_timeout(watchdog_watchdogtimer_obj_t *self) {
     return self->timeout;
 }

ports/nrf/common-hal/watchdog/WatchDogTimer.h

@@ -28,6 +28,9 @@
 #define MICROPY_INCLUDED_NRF_COMMON_HAL_WATCHDOG_WATCHDOGTIMER_H
 
 #include "py/obj.h"
+
+#include "shared-module/watchdog/__init__.h"
+
 #include "shared-bindings/watchdog/WatchDogMode.h"
 #include "shared-bindings/watchdog/WatchDogTimer.h"
 
@@ -37,8 +40,4 @@ struct _watchdog_watchdogtimer_obj_t {
     watchdog_watchdogmode_t mode;
 };
 
-// This needs to be called in order to disable the watchdog if it's set to
-// "RAISE". If set to "RESET", then the watchdog cannot be reset.
-void watchdog_reset(void);
-
 #endif // MICROPY_INCLUDED_NRF_COMMON_HAL_WATCHDOG_WATCHDOGTIMER_H

ports/raspberrypi/common-hal/watchdog/WatchDogTimer.c

@@ -26,8 +26,6 @@
 
 #include "py/runtime.h"
 
-#include "shared/runtime/pyexec.h"
-
 #include "shared-bindings/watchdog/__init__.h"
 #include "shared-bindings/microcontroller/__init__.h"
 
@@ -49,19 +47,6 @@ void common_hal_watchdog_deinit(watchdog_watchdogtimer_obj_t *self) {
     self->mode = WATCHDOGMODE_NONE;
 }
 
-void watchdog_reset(void) {
-    watchdog_watchdogtimer_obj_t *self = &common_hal_mcu_watchdogtimer_obj;
-    if (self->mode == WATCHDOGMODE_RESET) {
-        mp_obj_t exception = pyexec_result()->exception;
-        if (exception != MP_OBJ_NULL &&
-            exception != MP_OBJ_FROM_PTR(&MP_STATE_VM(mp_kbd_exception)) &&
-            exception != MP_OBJ_FROM_PTR(&MP_STATE_VM(mp_reload_exception))) {
-            return;
-        }
-    }
-    common_hal_watchdog_deinit(self);
-}
-
 mp_float_t common_hal_watchdog_get_timeout(watchdog_watchdogtimer_obj_t *self) {
     return self->timeout;
 }

ports/raspberrypi/common-hal/watchdog/WatchDogTimer.h

@@ -28,6 +28,9 @@
 #define MICROPY_INCLUDED_RASPBERRYPI_COMMON_HAL_WATCHDOG_WATCHDOGTIMER_H
 
 #include "py/obj.h"
+
+#include "shared-module/watchdog/__init__.h"
+
 #include "shared-bindings/watchdog/WatchDogMode.h"
 #include "shared-bindings/watchdog/WatchDogTimer.h"
 
@@ -37,7 +40,4 @@ struct _watchdog_watchdogtimer_obj_t {
     watchdog_watchdogmode_t mode;
 };
 
-// This needs to be called in order to disable the watchdog
-void watchdog_reset(void);
-
 #endif // MICROPY_INCLUDED_RASPBERRYPI_COMMON_HAL_WATCHDOG_WATCHDOGTIMER_H

ports/silabs/common-hal/watchdog/WatchDogTimer.c

@@ -41,10 +41,6 @@ void common_hal_watchdog_deinit(watchdog_watchdogtimer_obj_t *self) {
     WDOG_Enable(false);
 }
 
-void watchdog_reset(void) {
-    common_hal_watchdog_deinit(&common_hal_mcu_watchdogtimer_obj);
-}
-
 mp_float_t common_hal_watchdog_get_timeout(watchdog_watchdogtimer_obj_t *self) {
     return self->timeout;
 }

ports/silabs/common-hal/watchdog/WatchDogTimer.h

@@ -28,6 +28,9 @@
 #define MICROPY_INCLUDED_ESPRESSIF_COMMON_HAL_WATCHDOG_WATCHDOGTIMER_H
 
 #include "py/obj.h"
+
+#include "shared-module/watchdog/__init__.h"
+
 #include "shared-bindings/watchdog/WatchDogMode.h"
 #include "shared-bindings/watchdog/WatchDogTimer.h"
 
@@ -37,7 +40,4 @@ struct _watchdog_watchdogtimer_obj_t {
     watchdog_watchdogmode_t mode;
 };
 
-// This needs to be called in order to disable the watchdog
-void watchdog_reset(void);
-
 #endif // MICROPY_INCLUDED_ESPRESSIF_COMMON_HAL_WATCHDOG_WATCHDOGTIMER_H

ports/silabs/supervisor/port.c

@@ -192,6 +192,10 @@ void reset_port(void) {
     #if CIRCUITPY_RTC
     rtc_reset();
     #endif
+
+    #if CIRCUITPY_WATCHDOG
+    watchdog_reset();
+    #endif
 }
 
 void reset_to_bootloader(void) {

py/circuitpy_defns.mk

@@ -666,6 +666,7 @@ SRC_SHARED_MODULE_ALL = \
 	usb/core/__init__.c \
 	usb/core/Device.c \
 	ustack/__init__.c \
+	watchdog/__init__.c \
 	zlib/__init__.c \
 	vectorio/Circle.c \
 	vectorio/Polygon.c \

shared-bindings/watchdog/WatchDogMode.c

@@ -28,16 +28,12 @@
 
 #include "shared-bindings/watchdog/WatchDogMode.h"
 
-MAKE_ENUM_VALUE(watchdog_watchdogmode_type, watchdogmode, NONE, WATCHDOGMODE_NONE);
 MAKE_ENUM_VALUE(watchdog_watchdogmode_type, watchdogmode, RAISE, WATCHDOGMODE_RAISE);
 MAKE_ENUM_VALUE(watchdog_watchdogmode_type, watchdogmode, RESET, WATCHDOGMODE_RESET);
 
 //| class WatchDogMode:
 //|     """Run state of the watchdog timer."""
 //|
-//|     NONE: WatchDogMode
-//|     """The `WatchDogTimer` is disabled."""
-//|
 //|     RAISE: WatchDogMode
 //|     """Raise an exception when the `WatchDogTimer` expires."""
 //|
@@ -45,7 +41,6 @@ MAKE_ENUM_VALUE(watchdog_watchdogmode_type, watchdogmode, RESET, WATCHDOGMODE_RE
 //|     """Reset the system when the `WatchDogTimer` expires."""
 //|
 MAKE_ENUM_MAP(watchdog_watchdogmode) {
-    MAKE_ENUM_MAP_ENTRY(watchdogmode, NONE),
     MAKE_ENUM_MAP_ENTRY(watchdogmode, RAISE),
     MAKE_ENUM_MAP_ENTRY(watchdogmode, RESET),
 };

shared-bindings/watchdog/WatchDogTimer.c

@@ -71,8 +71,8 @@ STATIC MP_DEFINE_CONST_FUN_OBJ_1(watchdog_watchdogtimer_feed_obj, watchdog_watch
 //|
 //|         :raises RuntimeError: if the watchdog timer cannot be disabled on this platform.
 //|
-//|         .. note:: This is deprecated in ``8.1.0`` and will be removed in ``9.0.0``.
+//|         .. note:: This is deprecated in ``9.0.0`` and will be removed in ``10.0.0``.
-//|             Set watchdog `mode` to `WatchDogMode.NONE` instead.
+//|             Set watchdog `mode` to `None` instead.
 //|
 //|         """
 //|         ...
@@ -107,16 +107,17 @@ MP_PROPERTY_GETSET(watchdog_watchdogtimer_timeout_obj,
     (mp_obj_t)&watchdog_watchdogtimer_get_timeout_obj,
     (mp_obj_t)&watchdog_watchdogtimer_set_timeout_obj);
 
-//|     mode: WatchDogMode
+//|     mode: Optional[WatchDogMode]
-//|     """The current operating mode of the WatchDogTimer `watchdog.WatchDogMode`.
+//|     """The current operating mode of the WatchDogTimer `watchdog.WatchDogMode` or `None` when
+//|     the timer is disabled.
 //|
 //|     Setting a `WatchDogMode` activates the WatchDog::
 //|
-//|       from microcontroller import watchdog as w
+//|       from microcontroller import watchdog
 //|       from watchdog import WatchDogMode
 //|
-//|       w.timeout = 5
+//|       watchdog.timeout = 5
-//|       w.mode = WatchDogMode.RESET
+//|       watchdog.mode = WatchDogMode.RESET
 //|
 //|
 //|     Once set, the `WatchDogTimer` will perform the specified action if the timer expires."""
@@ -129,7 +130,8 @@ MP_DEFINE_CONST_FUN_OBJ_1(watchdog_watchdogtimer_get_mode_obj, watchdog_watchdog
 
 STATIC mp_obj_t watchdog_watchdogtimer_obj_set_mode(mp_obj_t self_in, mp_obj_t obj) {
     watchdog_watchdogtimer_obj_t *self = MP_OBJ_TO_PTR(self_in);
-    common_hal_watchdog_set_mode(self, cp_enum_value(&watchdog_watchdogmode_type, obj, MP_QSTR_mode));
+    watchdog_watchdogmode_t mode = (obj == mp_const_none) ? WATCHDOGMODE_NONE : cp_enum_value(&watchdog_watchdogmode_type, obj, MP_QSTR_mode);
+    common_hal_watchdog_set_mode(self, mode);
     return mp_const_none;
 }
 MP_DEFINE_CONST_FUN_OBJ_2(watchdog_watchdogtimer_set_mode_obj, watchdog_watchdogtimer_obj_set_mode);

shared-bindings/watchdog/WatchDogTimer.h

@@ -27,14 +27,14 @@
 #ifndef MICROPY_INCLUDED_SHARED_BINDINGS_WATCHDOG_WATCHDOGTIMER_H
 #define MICROPY_INCLUDED_SHARED_BINDINGS_WATCHDOG_WATCHDOGTIMER_H
 
-#include <py/obj.h>
+#include "py/obj.h"
 #include "shared-bindings/watchdog/WatchDogMode.h"
 
 typedef struct _watchdog_watchdogtimer_obj_t watchdog_watchdogtimer_obj_t;
 
 extern void common_hal_watchdog_feed(watchdog_watchdogtimer_obj_t *self);
 
-extern void common_hal_watchdog_set_mode(watchdog_watchdogtimer_obj_t *self, watchdog_watchdogmode_t);
+extern void common_hal_watchdog_set_mode(watchdog_watchdogtimer_obj_t *self, watchdog_watchdogmode_t mode);
 extern watchdog_watchdogmode_t common_hal_watchdog_get_mode(watchdog_watchdogtimer_obj_t *self);
 
 extern void common_hal_watchdog_set_timeout(watchdog_watchdogtimer_obj_t *self, mp_float_t timeout);

shared-module/watchdog/__init__.c

@@ -0,0 +1,47 @@
+/*
+ * This file is part of the Micro Python project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2023 MicroDev
+ *
+ * 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.
+ */
+
+#include "py/runtime.h"
+
+#include "shared/runtime/pyexec.h"
+
+#include "shared-module/watchdog/__init__.h"
+
+#include "shared-bindings/watchdog/WatchDogTimer.h"
+#include "shared-bindings/microcontroller/__init__.h"
+
+void watchdog_reset(void) {
+    watchdog_watchdogtimer_obj_t *self = &common_hal_mcu_watchdogtimer_obj;
+    if (self->mode == WATCHDOGMODE_RESET) {
+        mp_obj_t exception = pyexec_result()->exception;
+        if (exception != MP_OBJ_NULL &&
+            exception != MP_OBJ_FROM_PTR(&MP_STATE_VM(mp_kbd_exception)) &&
+            exception != MP_OBJ_FROM_PTR(&MP_STATE_VM(mp_reload_exception))) {
+            return;
+        }
+    }
+    common_hal_watchdog_deinit(self);
+}

shared-module/watchdog/__init__.h

@@ -0,0 +1,32 @@
+/*
+ * This file is part of the Micro Python project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2023 MicroDev
+ *
+ * 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.
+ */
+
+#ifndef MICROPY_INCLUDED_SHARED_MODULE_WATCHDOG___INIT___H
+#define MICROPY_INCLUDED_SHARED_MODULE_WATCHDOG___INIT___H
+
+extern void watchdog_reset(void);
+
+#endif  // MICROPY_INCLUDED_SHARED_MODULE_WATCHDOG___INIT___H