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/*
* MIT License
*
* Copyright (c) 2022 Joey Castillo
*
* 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 "watch_spi.h"
struct io_descriptor *spi_io;
void watch_enable_spi(void) {
SPI_0_init();
spi_m_sync_get_io_descriptor(&SPI_0, &spi_io);
spi_m_sync_enable(&SPI_0);
}
void watch_disable_spi(void) {
spi_m_sync_disable(&SPI_0);
spi_io = NULL;
}
bool watch_spi_write(const uint8_t *buf, uint16_t length) {
return !!io_write(spi_io, buf, length);
}
bool watch_spi_read(uint8_t *buf, uint16_t length) {
return !!io_read(spi_io, buf, length);
}
bool watch_spi_transfer(const uint8_t *data_out, uint8_t *data_in, uint16_t length) {
struct spi_xfer xfer;
xfer.txbuf = (uint8_t *)data_out;
xfer.rxbuf = data_in;
xfer.size = length;
return !!spi_m_sync_transfer(&SPI_0, &xfer);
}
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