nrf/boards/microbit: Add framework updates to build micro:bit modules.

Makefile and mpconfigport.h update is generic, and could be used by other
boards to give extra modules which are only for a selected board.

ports/nrf/Makefile

@@ -26,6 +26,10 @@ else
 	include drivers/bluetooth/bluetooth_common.mk
 endif
 
+ifeq ($(shell test -e boards/$(BOARD)/modules/boardmodules.mk && echo -n yes),yes)
+	include boards/$(BOARD)/modules/boardmodules.mk
+endif
+
 # qstr definitions (must come before including py.mk)
 QSTR_DEFS = qstrdefsport.h $(BUILD)/pins_qstr.h
 
@@ -264,7 +268,7 @@ $(BUILD)/$(OUTPUT_FILENAME).elf: $(OBJ)
 	$(Q)$(SIZE) $@
 
 # List of sources for qstr extraction
-SRC_QSTR += $(SRC_C) $(SRC_MOD) $(SRC_LIB) $(DRIVERS_SRC_C)
+SRC_QSTR += $(SRC_C) $(SRC_MOD) $(SRC_LIB) $(DRIVERS_SRC_C) $(SRC_BOARD_MODULES)
 
 # Append any auto-generated sources that are needed by sources listed in
 # SRC_QSTR

ports/nrf/boards/microbit/modules/board_modules.h

@@ -0,0 +1,35 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2017 Glenn Ruben Bakke
+ *
+ * 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_NRF_BOARD_MICROBIT_BOARD_MODULES_H
+#define MICROPY_INCLUDED_NRF_BOARD_MICROBIT_BOARD_MODULES_H
+
+extern const struct _mp_obj_module_t microbit_module;
+
+#define BOARD_MODULES \
+    { MP_ROM_QSTR(MP_QSTR_microbit), MP_ROM_PTR(&microbit_module) }, \
+
+#endif // MICROPY_INCLUDED_NRF_BOARD_MICROBIT_BOARD_MODULES_H

ports/nrf/boards/microbit/modules/boardmodules.mk

@@ -0,0 +1,16 @@
+BOARD_MICROBIT_DIR = boards/microbit/modules
+
+INC += -I./$(BOARD_MICROBIT_DIR)
+CFLAGS += -DBOARD_SPECIFIC_MODULES
+
+SRC_BOARD_MODULES = $(addprefix $(BOARD_MICROBIT_DIR)/,\
+                      microbitdisplay.c \
+                      microbitimage.c \
+                      iters.c \
+                      microbitconstimage.c \
+                      microbitconstimagetuples.c \
+                      modmicrobit.c \
+                      )
+
+OBJ += $(addprefix $(BUILD)/, $(SRC_BOARD_MODULES:.c=.o))
+

ports/nrf/mpconfigport.h

@@ -230,6 +230,13 @@ extern const struct _mp_obj_module_t random_module;
 #define RANDOM_MODULE
 #endif
 
+#if BOARD_SPECIFIC_MODULES
+#include "board_modules.h"
+#define MICROPY_BOARD_BUILTINS BOARD_MODULES
+#else
+#define MICROPY_BOARD_BUILTINS
+#endif // BOARD_SPECIFIC_MODULES
+
 #if BLUETOOTH_SD
 
 #if MICROPY_PY_BLE
@@ -249,6 +256,7 @@ extern const struct _mp_obj_module_t ble_module;
     MUSIC_MODULE \
     UBLUEPY_MODULE \
     RANDOM_MODULE \
+    MICROPY_BOARD_BUILTINS \
 
 
 #else
@@ -260,6 +268,7 @@ extern const struct _mp_obj_module_t ble_module;
     { MP_ROM_QSTR(MP_QSTR_uos), MP_ROM_PTR(&mp_module_uos) }, \
     MUSIC_MODULE \
     RANDOM_MODULE \
+    MICROPY_BOARD_BUILTINS \
 
 
 #endif // BLUETOOTH_SD
@@ -299,6 +308,7 @@ extern const struct _mp_obj_module_t ble_module;
     mp_obj_list_t mod_network_nic_list; \
     \
     /* microbit modules */ \
+    void *async_data[2]; \
     struct _music_data_t *music_data; \
     const struct _pwm_events *pwm_active_events; \
     const struct _pwm_events *pwm_pending_events; \