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/*-
* Copyright (c) 2011
* Ben Gray <ben.r.gray@gmail.com>.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
/**
* sDMA device driver interface for the TI SoC
*
* See the ti_sdma.c file for implementation details.
*
* Reference:
* OMAP35x Applications Processor
* Technical Reference Manual
* (omap35xx_techref.pdf)
*/
#ifndef _TI_DMA_H_
#define _TI_DMA_H_
#define TI_SDMA_ENDIAN_BIG 0x1
#define TI_SDMA_ENDIAN_LITTLE 0x0
#define TI_SDMA_BURST_NONE 0x0
#define TI_SDMA_BURST_16 0x1
#define TI_SDMA_BURST_32 0x2
#define TI_SDMA_BURST_64 0x3
#define TI_SDMA_DATA_8BITS_SCALAR 0x0
#define TI_SDMA_DATA_16BITS_SCALAR 0x1
#define TI_SDMA_DATA_32BITS_SCALAR 0x2
#define TI_SDMA_ADDR_CONSTANT 0x0
#define TI_SDMA_ADDR_POST_INCREMENT 0x1
#define TI_SDMA_ADDR_SINGLE_INDEX 0x2
#define TI_SDMA_ADDR_DOUBLE_INDEX 0x3
/**
* Status flags for the DMA callback
*
*/
#define TI_SDMA_STATUS_DROP (1UL << 1)
#define TI_SDMA_STATUS_HALF (1UL << 2)
#define TI_SDMA_STATUS_FRAME (1UL << 3)
#define TI_SDMA_STATUS_LAST (1UL << 4)
#define TI_SDMA_STATUS_BLOCK (1UL << 5)
#define TI_SDMA_STATUS_SYNC (1UL << 6)
#define TI_SDMA_STATUS_PKT (1UL << 7)
#define TI_SDMA_STATUS_TRANS_ERR (1UL << 8)
#define TI_SDMA_STATUS_SECURE_ERR (1UL << 9)
#define TI_SDMA_STATUS_SUPERVISOR_ERR (1UL << 10)
#define TI_SDMA_STATUS_MISALIGNED_ADRS_ERR (1UL << 11)
#define TI_SDMA_STATUS_DRAIN_END (1UL << 12)
#define TI_SDMA_SYNC_FRAME (1UL << 0)
#define TI_SDMA_SYNC_BLOCK (1UL << 1)
#define TI_SDMA_SYNC_PACKET (TI_SDMA_SYNC_FRAME | TI_SDMA_SYNC_BLOCK)
#define TI_SDMA_SYNC_TRIG_ON_SRC (1UL << 8)
#define TI_SDMA_SYNC_TRIG_ON_DST (1UL << 9)
#define TI_SDMA_IRQ_FLAG_DROP (1UL << 1)
#define TI_SDMA_IRQ_FLAG_HALF_FRAME_COMPL (1UL << 2)
#define TI_SDMA_IRQ_FLAG_FRAME_COMPL (1UL << 3)
#define TI_SDMA_IRQ_FLAG_START_LAST_FRAME (1UL << 4)
#define TI_SDMA_IRQ_FLAG_BLOCK_COMPL (1UL << 5)
#define TI_SDMA_IRQ_FLAG_ENDOF_PKT (1UL << 7)
#define TI_SDMA_IRQ_FLAG_DRAIN (1UL << 12)
int ti_sdma_activate_channel(unsigned int *ch,
void (*callback)(unsigned int ch, uint32_t status, void *data), void *data);
int ti_sdma_deactivate_channel(unsigned int ch);
int ti_sdma_start_xfer(unsigned int ch, unsigned int src_paddr,
unsigned long dst_paddr, unsigned int frmcnt, unsigned int elmcnt);
int ti_sdma_start_xfer_packet(unsigned int ch, unsigned int src_paddr,
unsigned long dst_paddr, unsigned int frmcnt, unsigned int elmcnt,
unsigned int pktsize);
int ti_sdma_stop_xfer(unsigned int ch);
int ti_sdma_enable_channel_irq(unsigned int ch, uint32_t flags);
int ti_sdma_disable_channel_irq(unsigned int ch);
int ti_sdma_get_channel_status(unsigned int ch, uint32_t *status);
int ti_sdma_set_xfer_endianess(unsigned int ch, unsigned int src, unsigned int dst);
int ti_sdma_set_xfer_burst(unsigned int ch, unsigned int src, unsigned int dst);
int ti_sdma_set_xfer_data_type(unsigned int ch, unsigned int type);
int ti_sdma_set_callback(unsigned int ch,
void (*callback)(unsigned int ch, uint32_t status, void *data), void *data);
int ti_sdma_sync_params(unsigned int ch, unsigned int trigger, unsigned int mode);
int ti_sdma_set_addr_mode(unsigned int ch, unsigned int src_mode, unsigned int dst_mode);
#endif /* _TI_SDMA_H_ */
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