1d4c34376a
Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts.
114 lines
4.8 KiB
C
114 lines
4.8 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2011
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* Ben Gray <ben.r.gray@gmail.com>.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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/**
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* sDMA device driver interface for the TI SoC
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*
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* See the ti_sdma.c file for implementation details.
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*
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* Reference:
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* OMAP35x Applications Processor
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* Technical Reference Manual
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* (omap35xx_techref.pdf)
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*/
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#ifndef _TI_DMA_H_
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#define _TI_DMA_H_
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#define TI_SDMA_ENDIAN_BIG 0x1
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#define TI_SDMA_ENDIAN_LITTLE 0x0
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#define TI_SDMA_BURST_NONE 0x0
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#define TI_SDMA_BURST_16 0x1
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#define TI_SDMA_BURST_32 0x2
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#define TI_SDMA_BURST_64 0x3
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#define TI_SDMA_DATA_8BITS_SCALAR 0x0
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#define TI_SDMA_DATA_16BITS_SCALAR 0x1
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#define TI_SDMA_DATA_32BITS_SCALAR 0x2
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#define TI_SDMA_ADDR_CONSTANT 0x0
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#define TI_SDMA_ADDR_POST_INCREMENT 0x1
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#define TI_SDMA_ADDR_SINGLE_INDEX 0x2
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#define TI_SDMA_ADDR_DOUBLE_INDEX 0x3
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/**
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* Status flags for the DMA callback
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*
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*/
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#define TI_SDMA_STATUS_DROP (1UL << 1)
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#define TI_SDMA_STATUS_HALF (1UL << 2)
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#define TI_SDMA_STATUS_FRAME (1UL << 3)
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#define TI_SDMA_STATUS_LAST (1UL << 4)
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#define TI_SDMA_STATUS_BLOCK (1UL << 5)
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#define TI_SDMA_STATUS_SYNC (1UL << 6)
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#define TI_SDMA_STATUS_PKT (1UL << 7)
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#define TI_SDMA_STATUS_TRANS_ERR (1UL << 8)
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#define TI_SDMA_STATUS_SECURE_ERR (1UL << 9)
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#define TI_SDMA_STATUS_SUPERVISOR_ERR (1UL << 10)
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#define TI_SDMA_STATUS_MISALIGNED_ADRS_ERR (1UL << 11)
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#define TI_SDMA_STATUS_DRAIN_END (1UL << 12)
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#define TI_SDMA_SYNC_FRAME (1UL << 0)
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#define TI_SDMA_SYNC_BLOCK (1UL << 1)
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#define TI_SDMA_SYNC_PACKET (TI_SDMA_SYNC_FRAME | TI_SDMA_SYNC_BLOCK)
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#define TI_SDMA_SYNC_TRIG_ON_SRC (1UL << 8)
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#define TI_SDMA_SYNC_TRIG_ON_DST (1UL << 9)
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#define TI_SDMA_IRQ_FLAG_DROP (1UL << 1)
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#define TI_SDMA_IRQ_FLAG_HALF_FRAME_COMPL (1UL << 2)
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#define TI_SDMA_IRQ_FLAG_FRAME_COMPL (1UL << 3)
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#define TI_SDMA_IRQ_FLAG_START_LAST_FRAME (1UL << 4)
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#define TI_SDMA_IRQ_FLAG_BLOCK_COMPL (1UL << 5)
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#define TI_SDMA_IRQ_FLAG_ENDOF_PKT (1UL << 7)
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#define TI_SDMA_IRQ_FLAG_DRAIN (1UL << 12)
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int ti_sdma_activate_channel(unsigned int *ch,
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void (*callback)(unsigned int ch, uint32_t status, void *data), void *data);
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int ti_sdma_deactivate_channel(unsigned int ch);
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int ti_sdma_start_xfer(unsigned int ch, unsigned int src_paddr,
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unsigned long dst_paddr, unsigned int frmcnt, unsigned int elmcnt);
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int ti_sdma_start_xfer_packet(unsigned int ch, unsigned int src_paddr,
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unsigned long dst_paddr, unsigned int frmcnt, unsigned int elmcnt,
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unsigned int pktsize);
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int ti_sdma_stop_xfer(unsigned int ch);
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int ti_sdma_enable_channel_irq(unsigned int ch, uint32_t flags);
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int ti_sdma_disable_channel_irq(unsigned int ch);
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int ti_sdma_get_channel_status(unsigned int ch, uint32_t *status);
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int ti_sdma_set_xfer_endianess(unsigned int ch, unsigned int src, unsigned int dst);
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int ti_sdma_set_xfer_burst(unsigned int ch, unsigned int src, unsigned int dst);
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int ti_sdma_set_xfer_data_type(unsigned int ch, unsigned int type);
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int ti_sdma_set_callback(unsigned int ch,
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void (*callback)(unsigned int ch, uint32_t status, void *data), void *data);
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int ti_sdma_sync_params(unsigned int ch, unsigned int trigger, unsigned int mode);
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int ti_sdma_set_addr_mode(unsigned int ch, unsigned int src_mode, unsigned int dst_mode);
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#endif /* _TI_SDMA_H_ */
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