fix espnow reinit, remove todos and improve docs

Author: microdev1

ports/espressif/bindings/espidf/__init__.c

@@ -34,6 +34,8 @@
 #include "nvs_flash.h"
 #include "components/heap/include/esp_heap_caps.h"
 
+//| import builtins
+//|
 //| """Direct access to a few ESP-IDF details. This module *should not* include any functionality
 //|    that could be implemented by other frameworks. It should only include ESP-IDF specific
 //|    things."""
@@ -95,6 +97,13 @@ STATIC void espidf_exception_print(const mp_print_t *print, mp_obj_t o_in, mp_pr
     mp_obj_exception_print(print, o_in, kind);
 }
 
+//| class IDFError(builtins.OSError):
+//|     """Raised when an ``ESP-IDF`` function returns an error code.
+//|     `esp_err_t <https://docs.espressif.com/projects/esp-idf/en/release-v4.4/esp32/api-reference/error-codes.html>`_
+//|     """
+//|
+//|     ...
+//|
 const mp_obj_type_t mp_type_espidf_IDFError = {
     { &mp_type_type },
     .name = MP_QSTR_IDFError,
@@ -104,11 +113,8 @@ const mp_obj_type_t mp_type_espidf_IDFError = {
     .parent = &mp_type_OSError,
 };
 
-
-//| import builtins
-//|
 //| class MemoryError(builtins.MemoryError):
-//|     """Raised when an ESP IDF memory allocation fails."""
+//|     """Raised when an ``ESP-IDF`` memory allocation fails."""
 //|
 //|     ...
 //|

ports/espressif/bindings/espnow/ESPNow.c

@@ -57,7 +57,9 @@ static void espnow_check_for_deinit(espnow_obj_t *self) {
 //|         """Allocate and initialize `ESPNow` instance as a singleton.
 //|
 //|         :param int buffer_size: The size of the internal ring buffer. Default: 526 bytes.
-//|         :param int phy_rate: The ESP-NOW physical layer rate. Default: 1 Mbps."""
+//|         :param int phy_rate: The ESP-NOW physical layer rate. Default: 1 Mbps.
+//|             `wifi_phy_rate_t <https://docs.espressif.com/projects/esp-idf/en/release-v4.4/esp32/api-reference/network/esp_wifi.html#_CPPv415wifi_phy_rate_t>`_
+//|         """
 //|         ...
 STATIC mp_obj_t espnow_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *all_args) {
     enum { ARG_buffer_size, ARG_phy_rate };
@@ -71,7 +73,7 @@ STATIC mp_obj_t espnow_make_new(const mp_obj_type_t *type, size_t n_args, size_t
 
     espnow_obj_t *self = MP_STATE_PORT(espnow_singleton);
 
-    if (self != NULL) {
+    if (!common_hal_espnow_deinited(self)) {
         mp_raise_RuntimeError(translate("Already running"));
     }
 
@@ -244,7 +246,9 @@ MP_PROPERTY_GETTER(espnow_buffer_size_obj,
     (mp_obj_t)&espnow_get_buffer_size_obj);
 
 //|     phy_rate: int
-//|     """The ESP-NOW physical layer rate."""
+//|     """The ESP-NOW physical layer rate.
+//|     `wifi_phy_rate_t <https://docs.espressif.com/projects/esp-idf/en/release-v4.4/esp32/api-reference/network/esp_wifi.html#_CPPv415wifi_phy_rate_t>`_
+//|     """
 //|
 STATIC mp_obj_t espnow_get_phy_rate(const mp_obj_t self_in) {
     espnow_obj_t *self = MP_OBJ_TO_PTR(self_in);

ports/espressif/bindings/espnow/Peer.c

@@ -31,9 +31,6 @@
 #include "bindings/espnow/Peer.h"
 #include "common-hal/espnow/__init__.h"
 
-// TODO: check peer already exist
-// TODO: check peer doesn't exist
-
 //| class Peer:
 //|     """A data class to store parameters specific to a peer."""
 //|
@@ -62,7 +59,7 @@ STATIC mp_obj_t espnow_peer_make_new(const mp_obj_type_t *type, size_t n_args, s
         { MP_QSTR_lmk,      MP_ARG_OBJ | MP_ARG_KW_ONLY, { .u_obj = mp_const_none } },
         { MP_QSTR_channel,  MP_ARG_INT | MP_ARG_KW_ONLY, { .u_int = 0 } },
         { MP_QSTR_interface,MP_ARG_INT | MP_ARG_KW_ONLY, { .u_int = 0 } },
-        { MP_QSTR_encrypted,MP_ARG_BOOL | MP_ARG_KW_ONLY, { .u_bool = false } },
+        { MP_QSTR_encrypted,MP_ARG_BOOL | MP_ARG_KW_ONLY,{ .u_bool = false } },
     };
 
     mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];

ports/espressif/bindings/espnow/Peers.c

@@ -35,8 +35,6 @@
 
 #include "esp_now.h"
 
-// TODO: Check for deinit
-
 //| class Peers:
 //|     """Maintains a `list` of `Peer` internally and only exposes a subset of `list` methods."""
 //|

ports/espressif/bindings/espnow/__init__.c

@@ -33,9 +33,8 @@
 //| """ESP-NOW Module
 //|
 //| The `espnow` module provides an interface to the
-//| `ESP-NOW <https://www.espressif.com/en/products/software/esp-now/overview>`_
-//| protocol provided by Espressif on its SoCs
-//| (`API docs <https://docs.espressif.com/projects/esp-idf/en/latest/api-reference/network/esp_now.html>`_).
+//| `ESP-NOW <https://docs.espressif.com/projects/esp-idf/en/release-v4.4/esp32/api-reference/network/esp_now.html>`_
+//| protocol provided by Espressif on its SoCs.
 //|
 //| **Sender**
 //|