Enable a BLE workflow

.github/workflows/build.yml

@@ -139,7 +139,7 @@ jobs:
       run: |
         echo "Uploading dev release to PyPi"
         python setup.py sdist
-        twine upload dist/*
+        [ -z "$TWINE_USERNAME" ] || twine upload dist/*
 
   mpy-cross-mac:
     runs-on: macos-10.15

devices/ble_hci/common-hal/_bleio/Adapter.c

@@ -645,7 +645,11 @@ STATIC void check_data_fit(size_t data_len, bool connectable) {
 //     return true;
 // }
 
-uint32_t _common_hal_bleio_adapter_start_advertising(bleio_adapter_obj_t *self, bool connectable, bool anonymous, uint32_t timeout, float interval, uint8_t *advertising_data, uint16_t advertising_data_len, uint8_t *scan_response_data, uint16_t scan_response_data_len, mp_int_t tx_power) {
+uint32_t _common_hal_bleio_adapter_start_advertising(bleio_adapter_obj_t *self,
+    bool connectable, bool anonymous, uint32_t timeout, float interval,
+    const uint8_t *advertising_data, uint16_t advertising_data_len,
+    const uint8_t *scan_response_data, uint16_t scan_response_data_len,
+    mp_int_t tx_power, const bleio_address_obj_t *directed_to) {
     check_enabled(self);
 
     if (self->now_advertising) {
@@ -769,7 +773,11 @@ uint32_t _common_hal_bleio_adapter_start_advertising(bleio_adapter_obj_t *self,
     return 0;
 }
 
-void common_hal_bleio_adapter_start_advertising(bleio_adapter_obj_t *self, bool connectable, bool anonymous, uint32_t timeout, mp_float_t interval, mp_buffer_info_t *advertising_data_bufinfo, mp_buffer_info_t *scan_response_data_bufinfo, mp_int_t tx_power) {
+void common_hal_bleio_adapter_start_advertising(bleio_adapter_obj_t *self,
+    bool connectable, bool anonymous, uint32_t timeout, mp_float_t interval,
+    mp_buffer_info_t *advertising_data_bufinfo,
+    mp_buffer_info_t *scan_response_data_bufinfo,
+    mp_int_t tx_power, const bleio_address_obj_t *directed_to) {
     check_enabled(self);
 
     // interval value has already been validated.
@@ -803,7 +811,7 @@ void common_hal_bleio_adapter_start_advertising(bleio_adapter_obj_t *self, bool
         advertising_data_bufinfo->len,
         scan_response_data_bufinfo->buf,
         scan_response_data_bufinfo->len,
-        tx_power);
+        tx_power, directed_to);
 
     if (result) {
         mp_raise_bleio_BluetoothError(translate("Already advertising"));

devices/ble_hci/common-hal/_bleio/PacketBuffer.c

@@ -148,7 +148,8 @@ mp_int_t common_hal_bleio_packet_buffer_readinto(bleio_packet_buffer_obj_t *self
     return ret;
 }
 
-mp_int_t common_hal_bleio_packet_buffer_write(bleio_packet_buffer_obj_t *self, uint8_t *data, size_t len, uint8_t *header, size_t header_len) {
+mp_int_t common_hal_bleio_packet_buffer_write(bleio_packet_buffer_obj_t *self,
+    const uint8_t *data, size_t len, uint8_t *header, size_t header_len) {
     if (self->outgoing[0] == NULL) {
         mp_raise_bleio_BluetoothError(translate("Writes not supported on Characteristic"));
     }

locale/circuitpython.pot

@@ -595,10 +595,6 @@ msgstr ""
 msgid "Buffer must be at least length 1"
 msgstr ""
 
-#: ports/nrf/common-hal/_bleio/PacketBuffer.c
-msgid "Buffer too large and unable to allocate"
-msgstr ""
-
 #: shared-bindings/_bleio/PacketBuffer.c
 #, c-format
 msgid "Buffer too short by %d bytes"
@@ -873,6 +869,10 @@ msgstr ""
 msgid "Data chunk must follow fmt chunk"
 msgstr ""
 
+#: ports/nrf/common-hal/_bleio/Adapter.c
+msgid "Data not supported with directed advertising"
+msgstr ""
+
 #: ports/nrf/common-hal/_bleio/Adapter.c
 msgid "Data too large for advertisement packet"
 msgstr ""
@@ -1667,7 +1667,6 @@ msgstr ""
 msgid "Not a valid IP string"
 msgstr ""
 
-#: ports/nrf/common-hal/_bleio/PacketBuffer.c
 #: ports/nrf/common-hal/_bleio/__init__.c
 #: shared-bindings/_bleio/CharacteristicBuffer.c
 msgid "Not connected"
@@ -1710,6 +1709,10 @@ msgid ""
 "Only Windows format, uncompressed BMP supported: given header size is %d"
 msgstr ""
 
+#: shared-bindings/_bleio/Adapter.c
+msgid "Only connectable advertisements can be directed"
+msgstr ""
+
 #: ports/stm/common-hal/alarm/pin/PinAlarm.c
 msgid "Only edge detection is available on this hardware"
 msgstr ""

main.c

@@ -696,6 +696,11 @@ int __attribute__((used)) main(void) {
 
     stack_init();
 
+    #if CIRCUITPY_BLEIO
+    // Early init so that a reset press can cause BLE public advertising.
+    supervisor_bluetooth_init();
+    #endif
+
     // Create a new filesystem only if we're not in a safe mode.
     // A power brownout here could make it appear as if there's
     // no SPI flash filesystem, and we might erase the existing one.

ports/nrf/bluetooth/ble_drv.c

@@ -39,7 +39,6 @@
 #include "py/mpstate.h"
 
 #include "supervisor/shared/bluetooth.h"
-#include "supervisor/bluetooth.h"
 
 nrf_nvic_state_t nrf_nvic_state = { 0 };
 
@@ -56,6 +55,14 @@ void ble_drv_reset() {
 }
 
 void ble_drv_add_event_handler_entry(ble_drv_evt_handler_entry_t *entry, ble_drv_evt_handler_t func, void *param) {
+    ble_drv_evt_handler_entry_t *it = MP_STATE_VM(ble_drv_evt_handler_entries);
+    while (it != NULL) {
+        // If event handler and its corresponding param are already on the list, don't add again.
+        if ((it->func == func) && (it->param == param)) {
+            return;
+        }
+        it = it->next;
+    }
     entry->next = MP_STATE_VM(ble_drv_evt_handler_entries);
     entry->param = param;
     entry->func = func;
@@ -85,6 +92,8 @@ void ble_drv_remove_event_handler(ble_drv_evt_handler_t func, void *param) {
         if ((it->func == func) && (it->param == param)) {
             // Splice out the matching handler.
             *prev = it->next;
+            // Clear next of the removed node so it's clearly not in a list.
+            it->next = NULL;
             return;
         }
         prev = &(it->next);
@@ -138,21 +147,26 @@ void SD_EVT_IRQHandler(void) {
 
         ble_evt_t *event = (ble_evt_t *)m_ble_evt_buf;
         #if CIRCUITPY_VERBOSE_BLE
-        mp_printf(&mp_plat_print, "BLE event: 0x%04x\n", event->header.evt_id);
-        #endif
-
-        if (supervisor_bluetooth_hook(event)) {
-            continue;
+        size_t eid = event->header.evt_id;
+        if (eid != 0x1d) {
+            if (BLE_GAP_EVT_BASE <= eid && eid <= BLE_GAP_EVT_LAST) {
+                mp_printf(&mp_plat_print, "BLE GAP event: %d\n", eid - BLE_GAP_EVT_BASE);
+            } else {
+                mp_printf(&mp_plat_print, "BLE event: 0x%04x\n", event->header.evt_id);
+            }
         }
+        #endif
 
         ble_drv_evt_handler_entry_t *it = MP_STATE_VM(ble_drv_evt_handler_entries);
         bool done = false;
         while (it != NULL) {
             #if CIRCUITPY_VERBOSE_BLE
-            // mp_printf(&mp_plat_print, "  calling handler: 0x%08lx, param: 0x%08lx\n", it->func-1, it->param);
+            // mp_printf(&mp_plat_print, "  calling handler: 0x%08lx, param: 0x%08lx\n", it->func - 1, it->param);
             #endif
+            // Capture next before calling the function in case it removes itself from the list.
+            ble_drv_evt_handler_entry_t *next = it->next;
             done = it->func(event, it->param) || done;
-            it = it->next;
+            it = next;
         }
         #if CIRCUITPY_VERBOSE_BLE
         if (event->header.evt_id == BLE_GATTS_EVT_WRITE) {