Initial board support for OHS2020 Badge

Not tested but builds.

Signed-off-by: Michael Welling <mwelling@ieee.org>

4 files changed, 184 insertions, 0 deletions

diff --git a/ports/nrf/boards/ohs2020_badge/board.c b/ports/nrf/boards/ohs2020_badge/board.c
new file mode 100644
index 000000000..ee1f28459
--- /dev/null
+++ b/ports/nrf/boards/ohs2020_badge/board.c
@@ -0,0 +1,99 @@
+/*
+ * 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"
+#include "mpconfigboard.h"
+
+#include "shared-bindings/busio/SPI.h"
+#include "shared-bindings/displayio/FourWire.h"
+#include "shared-module/displayio/__init__.h"
+#include "shared-module/displayio/mipi_constants.h"
+#include "tick.h"
+
+displayio_fourwire_obj_t board_display_obj;
+
+#define DELAY 0x80
+
+uint8_t display_init_sequence[] = {
+    0x01, 0 | DELAY, 150, // SWRESET
+    0x11, 0 | DELAY, 255, // SLPOUT
+    0x36, 1, 0x00,        // _MADCTL bottom to top refresh in vsync aligned order.
+    0x3a, 1, 0x55, // COLMOD - 16bit color
+    0x21, 0 | DELAY, 10,                 // _INVON
+    0x13, 0 | DELAY, 10,                 // _NORON
+    0x29, 0 | DELAY, 255,                // _DISPON
+};
+
+void board_init(void) {
+    busio_spi_obj_t* spi = &displays[0].fourwire_bus.inline_bus;
+    common_hal_busio_spi_construct(spi, &pin_P0_14, &pin_P0_15, NULL);
+    common_hal_busio_spi_never_reset(spi);
+
+    displayio_fourwire_obj_t* bus = &displays[0].fourwire_bus;
+    bus->base.type = &displayio_fourwire_type;
+    common_hal_displayio_fourwire_construct(bus,
+        spi,
+        &pin_P0_08, // TFT_DC Command or data
+        &pin_P0_14, // TFT_CS Chip select
+        &pin_P0_13, // TFT_RST Reset
+        60000000);
+
+    displayio_display_obj_t* display = &displays[0].display;
+    display->base.type = &displayio_display_type;
+    common_hal_displayio_display_construct(display,
+        bus,
+        240, // Width (after rotation)
+        240, // Height (after rotation)
+        0, // column start
+        0, // row start
+        270, // rotation
+        16, // Color depth
+        false, // Grayscale
+        false, // Pixels in a byte share a row. Only used for depth < 8
+        1, // bytes per cell. Only valid for depths < 8
+        false, // reverse_pixels_in_byte. Only valid for depths < 8
+        MIPI_COMMAND_SET_COLUMN_ADDRESS, // Set column command
+        MIPI_COMMAND_SET_PAGE_ADDRESS, // Set row command
+        MIPI_COMMAND_WRITE_MEMORY_START, // Write memory command
+        0x37, // set vertical scroll command
+        display_init_sequence,
+        sizeof(display_init_sequence),
+        &pin_P1_05,  // backlight pin
+        NO_BRIGHTNESS_COMMAND,
+        1.0f, // brightness (ignored)
+        true, // auto_brightness
+        false, // single_byte_bounds
+        false, // data_as_commands
+        true, // auto_refresh
+        60); // native_frames_per_second
+}
+
+bool board_requests_safe_mode(void) {
+    return false;
+}
+
+void reset_board(void) {
+}
diff --git a/ports/nrf/boards/ohs2020_badge/mpconfigboard.h b/ports/nrf/boards/ohs2020_badge/mpconfigboard.h
new file mode 100644
index 000000000..8e4e68dea
--- /dev/null
+++ b/ports/nrf/boards/ohs2020_badge/mpconfigboard.h
@@ -0,0 +1,57 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2016 Glenn Ruben Bakke
+ * Copyright (c) 2018 Dan Halbert for Adafruit Industries
+ * Copyright (c) 2020 Michael Welling
+ *
+ * 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 "nrfx/hal/nrf_gpio.h"
+
+#define MICROPY_HW_BOARD_NAME       "Open Hardware Summit 2020 Badge"
+#define MICROPY_HW_MCU_NAME         "nRF52840"
+
+#if QSPI_FLASH_FILESYSTEM
+#define MICROPY_QSPI_DATA0                NRF_GPIO_PIN_MAP(0, 22)
+#define MICROPY_QSPI_DATA1                NRF_GPIO_PIN_MAP(1,  0)
+#define MICROPY_QSPI_DATA2                NRF_GPIO_PIN_MAP(0, 20)
+#define MICROPY_QSPI_DATA3                NRF_GPIO_PIN_MAP(1,  2)
+#define MICROPY_QSPI_SCK                  NRF_GPIO_PIN_MAP(1,  1)
+#define MICROPY_QSPI_CS                   NRF_GPIO_PIN_MAP(0, 23)
+#endif
+
+#if SPI_FLASH_FILESYSTEM
+#define SPI_FLASH_MOSI_PIN &pin_P1_00
+#define SPI_FLASH_MISO_PIN &pin_P0_22
+#define SPI_FLASH_SCK_PIN &pin_P1_01
+#define SPI_FLASH_CS_PIN &pin_P0_23
+#endif
+
+#define BOARD_HAS_CRYSTAL 1
+
+#define DEFAULT_I2C_BUS_SCL         (&pin_P1_14)
+#define DEFAULT_I2C_BUS_SDA         (&pin_P1_15)
+
+#define DEFAULT_SPI_BUS_SCK         (&pin_P0_11)
+#define DEFAULT_SPI_BUS_MOSI        (&pin_P0_12)
+#define DEFAULT_SPI_BUS_MISO        (&pin_P0_07)
diff --git a/ports/nrf/boards/ohs2020_badge/mpconfigboard.mk b/ports/nrf/boards/ohs2020_badge/mpconfigboard.mk
new file mode 100644
index 000000000..ed96b1164
--- /dev/null
+++ b/ports/nrf/boards/ohs2020_badge/mpconfigboard.mk
@@ -0,0 +1,10 @@
+USB_VID = 0x239A
+USB_PID = 0x8072
+USB_PRODUCT = "OHS2020 Badge"
+USB_MANUFACTURER = "Adafruit Industries LLC"
+
+MCU_CHIP = nrf52840
+
+QSPI_FLASH_FILESYSTEM = 1
+EXTERNAL_FLASH_DEVICE_COUNT = 1
+EXTERNAL_FLASH_DEVICES = "W25Q32JV_IQ"
diff --git a/ports/nrf/boards/ohs2020_badge/pins.c b/ports/nrf/boards/ohs2020_badge/pins.c
new file mode 100644
index 000000000..c3752d06b
--- /dev/null
+++ b/ports/nrf/boards/ohs2020_badge/pins.c
@@ -0,0 +1,18 @@
+#include "shared-bindings/board/__init__.h"
+
+STATIC const mp_rom_map_elem_t board_module_globals_table[] = {
+    { MP_ROM_QSTR(MP_QSTR_MICROPHONE_CLOCK), MP_ROM_PTR(&pin_P0_25) },
+    { MP_ROM_QSTR(MP_QSTR_MICROPHONE_DATA), MP_ROM_PTR(&pin_P0_28) },
+
+    { MP_ROM_QSTR(MP_QSTR_TFT_RESET), MP_ROM_PTR(&pin_P0_13) },
+    { MP_ROM_QSTR(MP_QSTR_TFT_BACKLIGHT), MP_ROM_PTR(&pin_P0_16) },
+    { MP_ROM_QSTR(MP_QSTR_TFT_CS), MP_ROM_PTR(&pin_P0_14) },
+    { MP_ROM_QSTR(MP_QSTR_TFT_DC), MP_ROM_PTR(&pin_P0_08) },
+    { MP_ROM_QSTR(MP_QSTR_TFT_SCK), MP_ROM_PTR(&pin_P0_11) },
+    { MP_ROM_QSTR(MP_QSTR_TFT_MOSI), MP_ROM_PTR(&pin_P0_12) },
+
+    { MP_ROM_QSTR(MP_QSTR_I2C), MP_ROM_PTR(&board_i2c_obj) },
+    { MP_ROM_QSTR(MP_QSTR_SPI), MP_ROM_PTR(&board_spi_obj) },
+};
+
+MP_DEFINE_CONST_DICT(board_module_globals, board_module_globals_table);