63 lines
2.5 KiB
C
63 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 Damien P. George
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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_EXTMOD_MACHINE_SPI_H
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#define MICROPY_INCLUDED_EXTMOD_MACHINE_SPI_H
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#include "py/obj.h"
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#include "py/mphal.h"
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// SPI protocol
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typedef struct _mp_machine_spi_p_t {
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void (*init)(mp_obj_base_t *obj, size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args);
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void (*deinit)(mp_obj_base_t *obj); // can be NULL
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void (*transfer)(mp_obj_base_t *obj, size_t len, const uint8_t *src, uint8_t *dest);
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} mp_machine_spi_p_t;
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typedef struct _mp_machine_soft_spi_obj_t {
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mp_obj_base_t base;
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uint32_t delay_half; // microsecond delay for half SCK period
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uint8_t polarity;
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uint8_t phase;
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mp_hal_pin_obj_t sck;
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mp_hal_pin_obj_t mosi;
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mp_hal_pin_obj_t miso;
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} mp_machine_soft_spi_obj_t;
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extern const mp_obj_type_t mp_machine_soft_spi_type;
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extern const mp_obj_dict_t mp_machine_spi_locals_dict;
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void mp_machine_soft_spi_transfer(mp_obj_base_t *self, size_t len, const uint8_t *src, uint8_t *dest);
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mp_obj_t mp_machine_spi_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *args);
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MP_DECLARE_CONST_FUN_OBJ_VAR_BETWEEN(mp_machine_spi_read_obj);
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MP_DECLARE_CONST_FUN_OBJ_VAR_BETWEEN(mp_machine_spi_readinto_obj);
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MP_DECLARE_CONST_FUN_OBJ_2(mp_machine_spi_write_obj);
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MP_DECLARE_CONST_FUN_OBJ_3(mp_machine_spi_write_readinto_obj);
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#endif // MICROPY_INCLUDED_EXTMOD_MACHINE_SPI_H
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