hackrf/firmware/common/sgpio_dma.h
Jared Boone ca070acad0 Expose SGPIO DMA LLI configuration function.
Remove LLI declarations internal to SGPIO DMA module.
Require a start LLI for SGPIO DMA start functions.
2013-12-08 13:14:26 -08:00

49 lines
1.4 KiB
C

/*
* Copyright 2013 Jared Boone <jared@sharebrained.com>
*
* This file is part of HackRF.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#ifndef __SGPIO_DMA_H__
#define __SGPIO_DMA_H__
#include <stddef.h>
#include <libopencm3/lpc43xx/gpdma.h>
void sgpio_dma_configure_lli(
gpdma_lli_t* const lli,
const size_t lli_count,
const bool direction_transmit,
void* const buffer,
const size_t transfer_bytes
);
void sgpio_dma_init();
void sgpio_dma_rx_start(const gpdma_lli_t* const start_lli);
void sgpio_dma_tx_start(const gpdma_lli_t* const start_lli);
void sgpio_dma_irq_tc_acknowledge();
void sgpio_dma_stop();
size_t sgpio_dma_current_transfer_index(
const gpdma_lli_t* const lli,
const size_t lli_count
);
#endif/*__SGPIO_DMA_H__*/