Initial commit of files

SoftwareDefined/HackRF/hackrf-2015.07.2/firmware/common/sgpio_dma.h

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+/*
+ * 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__*/