56 lines
2.0 KiB
C
56 lines
2.0 KiB
C
/*
|
|
* This file is part of the MicroPython project, http://micropython.org/
|
|
*
|
|
* The MIT License (MIT)
|
|
*
|
|
* SPDX-FileCopyrightText: Copyright (c) 2016-2018 Damien P. George
|
|
*
|
|
* 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_DRIVERS_BUS_SPI_H
|
|
#define MICROPY_INCLUDED_DRIVERS_BUS_SPI_H
|
|
|
|
#include "py/mphal.h"
|
|
|
|
enum {
|
|
MP_SPI_IOCTL_INIT,
|
|
MP_SPI_IOCTL_DEINIT,
|
|
};
|
|
|
|
typedef struct _mp_spi_proto_t {
|
|
int (*ioctl)(void *self, uint32_t cmd);
|
|
void (*transfer)(void *self, size_t len, const uint8_t *src, uint8_t *dest);
|
|
} mp_spi_proto_t;
|
|
|
|
typedef struct _mp_soft_spi_obj_t {
|
|
uint32_t delay_half; // microsecond delay for half SCK period
|
|
uint8_t polarity;
|
|
uint8_t phase;
|
|
mp_hal_pin_obj_t sck;
|
|
mp_hal_pin_obj_t mosi;
|
|
mp_hal_pin_obj_t miso;
|
|
} mp_soft_spi_obj_t;
|
|
|
|
extern const mp_spi_proto_t mp_soft_spi_proto;
|
|
|
|
int mp_soft_spi_ioctl(void *self, uint32_t cmd);
|
|
void mp_soft_spi_transfer(void *self, size_t len, const uint8_t *src, uint8_t *dest);
|
|
|
|
#endif // MICROPY_INCLUDED_DRIVERS_BUS_SPI_H
|