53 lines
2.0 KiB
C
53 lines
2.0 KiB
C
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/*
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* SPI - esp32 esp-idf api implementation
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*
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* Copyright (C) 2019 - 2020 Andy Green <andy@warmcat.com>
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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
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* deal in the Software without restriction, including without limitation the
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* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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* sell 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
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*
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* This is like an abstract class for gpio, a real implementation provides
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* functions for the ops that use the underlying OS gpio arrangements.
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*/
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#if defined(ESP_PLATFORM)
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#define lws_esp32_spi_ops \
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.init = lws_esp32_spi_init, \
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.queue = lws_esp32_spi_queue, \
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.alloc_dma = lws_esp32_spi_alloc_dma, \
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.free_dma = lws_esp32_spi_free_dma, \
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.in_flight = lws_esp32_spi_in_flight
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LWS_VISIBLE LWS_EXTERN int
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lws_esp32_spi_init(const lws_spi_ops_t *spi_ops);
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LWS_VISIBLE LWS_EXTERN int
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lws_esp32_spi_queue(const lws_spi_ops_t *spi_ops, const lws_spi_desc_t *desc);
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LWS_VISIBLE LWS_EXTERN void *
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lws_esp32_spi_alloc_dma(const struct lws_spi_ops *ctx, size_t size);
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LWS_VISIBLE LWS_EXTERN void
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lws_esp32_spi_free_dma(const struct lws_spi_ops *ctx, void **p);
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LWS_VISIBLE LWS_EXTERN int
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lws_esp32_spi_in_flight(const struct lws_spi_ops *ctx);
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#endif
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