Add board support for Winterbloom Big Honking Button

ports/atmel-samd/boards/winterbloom_big_honking_button/board.c

@@ -0,0 +1,38 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2017 Scott Shawcroft for Adafruit Industries
+ *
+ * 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 "boards/board.h"
+
+void board_init(void)
+{
+}
+
+bool board_requests_safe_mode(void) {
+    return false;
+}
+
+void reset_board(void) {
+}

ports/atmel-samd/boards/winterbloom_big_honking_button/mpconfigboard.h

@@ -0,0 +1,20 @@
+#define MICROPY_HW_BOARD_NAME "Winterbloom Big Honking Button"
+#define MICROPY_HW_MCU_NAME "samd21g18"
+
+#define MICROPY_HW_LED_STATUS   (&pin_PA17)
+
+#define SPI_FLASH_MOSI_PIN          &pin_PB22
+#define SPI_FLASH_MISO_PIN          &pin_PB03
+#define SPI_FLASH_SCK_PIN           &pin_PB23
+#define SPI_FLASH_CS_PIN            &pin_PA27
+
+// These are pins not to reset.
+#define MICROPY_PORT_A        (PORT_PA00 | PORT_PA01)
+#define MICROPY_PORT_B        ( 0 )
+#define MICROPY_PORT_C        ( 0 )
+
+#define BOARD_HAS_CRYSTAL 0
+
+// USB is always used internally so skip the pin objects for it.
+#define IGNORE_PIN_PA24     1
+#define IGNORE_PIN_PA25     1

ports/atmel-samd/boards/winterbloom_big_honking_button/mpconfigboard.mk

@@ -0,0 +1,35 @@
+# Adafruit
+USB_VID = 0x239A
+# Allocated for Big Honking Button at https://github.com/adafruit/circuitpython/issues/2715
+USB_PID = 0x6005
+USB_PRODUCT = "Big Honking Button"
+USB_MANUFACTURER = "Winterbloom"
+USB_DEVICES = "CDC,MSC"
+
+CHIP_VARIANT = SAMD21G18A
+CHIP_FAMILY = samd21
+
+SPI_FLASH_FILESYSTEM = 1
+EXTERNAL_FLASH_DEVICE_COUNT = 1
+EXTERNAL_FLASH_DEVICES = "GD25Q16C"
+LONGINT_IMPL = MPZ
+
+CIRCUITPY_AUDIOIO = 1
+
+# Disable modules that are unusable on this special-purpose board.
+CIRCUITPY_BITBANGIO = 0
+CIRCUITPY_FREQUENCYIO = 0
+CIRCUITPY_I2CSLAVE = 0
+CIRCUITPY_AUDIOBUSIO = 0
+CIRCUITPY_BLEIO = 0
+CIRCUITPY_DISPLAYIO = 0
+CIRCUITPY_GAMEPAD = 0
+CIRCUITPY_I2CSLAVE = 0
+CIRCUITPY_NETWORK = 0
+CIRCUITPY_TOUCHIO = 0
+CIRCUITPY_PS2IO = 0
+CIRCUITPY_USB_HID = 0
+CIRCUITPY_RTC = 0
+
+CFLAGS_INLINE_LIMIT = 60
+SUPEROPT_GC = 0

ports/atmel-samd/boards/winterbloom_big_honking_button/pins.c

@@ -0,0 +1,10 @@
+#include "shared-bindings/board/__init__.h"
+
+STATIC const mp_rom_map_elem_t board_global_dict_table[] = {
+    { MP_ROM_QSTR(MP_QSTR_BUTTON), MP_ROM_PTR(&pin_PA07) },
+    { MP_ROM_QSTR(MP_QSTR_HONK_OUT), MP_ROM_PTR(&pin_PA02) },
+    { MP_ROM_QSTR(MP_QSTR_GATE_OUT), MP_ROM_PTR(&pin_PA11) },
+    { MP_ROM_QSTR(MP_QSTR_GATE_IN), MP_ROM_PTR(&pin_PA14) },
+    { MP_ROM_QSTR(MP_QSTR_PITCH_IN), MP_ROM_PTR(&pin_PB08) },
+};
+MP_DEFINE_CONST_DICT(board_module_globals, board_global_dict_table);