26229efe78
are shared well between threads and underlying MicroPython (SPI Flash for example.) It is recommended to use the bus device classes to manage the locks and other transaction state. https://github.com/adafruit/Adafruit_MicroPython_BusDevice Fixed #58 Fixed #59 Fixed #60
59 lines
2.5 KiB
C
59 lines
2.5 KiB
C
/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2016 Scott Shawcroft for Adafruit Industries
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#ifndef __MICROPY_INCLUDED_SHARED_BINDINGS_BITBANGIO_SPI_H__
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#define __MICROPY_INCLUDED_SHARED_BINDINGS_BITBANGIO_SPI_H__
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#include "py/obj.h"
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#include "common-hal/microcontroller/types.h"
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#include "shared-module/bitbangio/types.h"
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// Type object used in Python. Should be shared between ports.
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extern const mp_obj_type_t bitbangio_spi_type;
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// Construct an underlying SPI object.
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extern void shared_module_bitbangio_spi_construct(bitbangio_spi_obj_t *self,
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const mcu_pin_obj_t * clock, const mcu_pin_obj_t * mosi,
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const mcu_pin_obj_t * miso);
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extern void shared_module_bitbangio_spi_deinit(bitbangio_spi_obj_t *self);
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extern void shared_module_bitbangio_spi_configure(bitbangio_spi_obj_t *self,
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uint32_t baudrate, uint8_t polarity, uint8_t phase, uint8_t bits);
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extern bool shared_module_bitbangio_spi_try_lock(bitbangio_spi_obj_t *self);
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extern bool shared_module_bitbangio_spi_has_lock(bitbangio_spi_obj_t *self);
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extern void shared_module_bitbangio_spi_unlock(bitbangio_spi_obj_t *self);
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// Writes out the given data.
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extern bool shared_module_bitbangio_spi_write(bitbangio_spi_obj_t *self, const uint8_t *data, size_t len);
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// Reads in len bytes while outputting zeroes.
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extern bool shared_module_bitbangio_spi_read(bitbangio_spi_obj_t *self, uint8_t *data, size_t len);
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#endif // __MICROPY_INCLUDED_SHARED_BINDINGS_BITBANGIO_SPI_H__
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