115 lines
4.2 KiB
C
115 lines
4.2 KiB
C
/*
|
|
* This file is part of the MicroPython project, http://micropython.org/
|
|
*
|
|
* The MIT License (MIT)
|
|
*
|
|
* Copyright (c) 2018 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 "shared-bindings/busio/I2C.h"
|
|
#include "shared-bindings/busio/SPI.h"
|
|
#include "shared-bindings/busio/UART.h"
|
|
|
|
#include "shared-bindings/microcontroller/Pin.h"
|
|
#include "supervisor/shared/translate.h"
|
|
#include "nrf/pins.h"
|
|
#include "py/mpconfig.h"
|
|
#include "py/runtime.h"
|
|
|
|
#if !defined(DEFAULT_I2C_BUS_SDA) || !defined(DEFAULT_I2C_BUS_SCL)
|
|
STATIC mp_obj_t board_i2c(void) {
|
|
mp_raise_NotImplementedError(translate("No default I2C bus"));
|
|
return NULL;
|
|
}
|
|
#else
|
|
STATIC mp_obj_t i2c_singleton = NULL;
|
|
|
|
STATIC mp_obj_t board_i2c(void) {
|
|
|
|
if (i2c_singleton == NULL) {
|
|
busio_i2c_obj_t *self = m_new_obj(busio_i2c_obj_t);
|
|
self->base.type = &busio_i2c_type;
|
|
|
|
assert_pin_free(DEFAULT_I2C_BUS_SDA);
|
|
assert_pin_free(DEFAULT_I2C_BUS_SCL);
|
|
common_hal_busio_i2c_construct(self, DEFAULT_I2C_BUS_SCL, DEFAULT_I2C_BUS_SDA, 400000, 0);
|
|
i2c_singleton = (mp_obj_t)self;
|
|
}
|
|
return i2c_singleton;
|
|
|
|
}
|
|
#endif
|
|
MP_DEFINE_CONST_FUN_OBJ_0(board_i2c_obj, board_i2c);
|
|
|
|
#if !defined(DEFAULT_SPI_BUS_SCK) || !defined(DEFAULT_SPI_BUS_MISO) || !defined(DEFAULT_SPI_BUS_MOSI)
|
|
STATIC mp_obj_t board_spi(void) {
|
|
mp_raise_NotImplementedError(translate("No default SPI bus"));
|
|
return NULL;
|
|
}
|
|
#else
|
|
STATIC mp_obj_t spi_singleton = NULL;
|
|
|
|
STATIC mp_obj_t board_spi(void) {
|
|
|
|
if (spi_singleton == NULL) {
|
|
busio_spi_obj_t *self = m_new_obj(busio_spi_obj_t);
|
|
self->base.type = &busio_spi_type;
|
|
assert_pin_free(DEFAULT_SPI_BUS_SCK);
|
|
assert_pin_free(DEFAULT_SPI_BUS_MOSI);
|
|
assert_pin_free(DEFAULT_SPI_BUS_MISO);
|
|
const mcu_pin_obj_t* clock = MP_OBJ_TO_PTR(DEFAULT_SPI_BUS_SCK);
|
|
const mcu_pin_obj_t* mosi = MP_OBJ_TO_PTR(DEFAULT_SPI_BUS_MOSI);
|
|
const mcu_pin_obj_t* miso = MP_OBJ_TO_PTR(DEFAULT_SPI_BUS_MISO);
|
|
common_hal_busio_spi_construct(self, clock, mosi, miso);
|
|
spi_singleton = (mp_obj_t)self;
|
|
}
|
|
return spi_singleton;
|
|
}
|
|
#endif
|
|
MP_DEFINE_CONST_FUN_OBJ_0(board_spi_obj, board_spi);
|
|
|
|
#if !defined(DEFAULT_UART_BUS_RX) || !defined(DEFAULT_UART_BUS_TX)
|
|
STATIC mp_obj_t board_uart(void) {
|
|
mp_raise_NotImplementedError(translate("No default UART bus"));
|
|
return NULL;
|
|
}
|
|
#else
|
|
STATIC mp_obj_t uart_singleton = NULL;
|
|
|
|
STATIC mp_obj_t board_uart(void) {
|
|
if (uart_singleton == NULL) {
|
|
busio_uart_obj_t *self = m_new_obj(busio_uart_obj_t);
|
|
self->base.type = &busio_uart_type;
|
|
|
|
assert_pin_free(DEFAULT_UART_BUS_RX);
|
|
assert_pin_free(DEFAULT_UART_BUS_TX);
|
|
|
|
const mcu_pin_obj_t* rx = MP_OBJ_TO_PTR(DEFAULT_UART_BUS_RX);
|
|
const mcu_pin_obj_t* tx = MP_OBJ_TO_PTR(DEFAULT_UART_BUS_TX);
|
|
|
|
common_hal_busio_uart_construct(self, tx, rx, 9600, 8, PARITY_NONE, 1, 1000, 64);
|
|
uart_singleton = (mp_obj_t)self;
|
|
}
|
|
return uart_singleton;
|
|
}
|
|
#endif
|
|
MP_DEFINE_CONST_FUN_OBJ_0(board_uart_obj, board_uart);
|