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8b1935e6a3
Separate SH DMA headers into ones, commonly used by both drivers, and ones, specific to each of them. This will make the future development of the dmaengine driver easier. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
73 lines
1.7 KiB
C
73 lines
1.7 KiB
C
/*
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* Header for the new SH dmaengine driver
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*
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* Copyright (C) 2010 Guennadi Liakhovetski <g.liakhovetski@gmx.de>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef ASM_DMAENGINE_H
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#define ASM_DMAENGINE_H
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#include <asm/dma-register.h>
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#define SH_DMAC_MAX_CHANNELS 6
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enum sh_dmae_slave_chan_id {
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SHDMA_SLAVE_SCIF0_TX,
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SHDMA_SLAVE_SCIF0_RX,
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SHDMA_SLAVE_SCIF1_TX,
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SHDMA_SLAVE_SCIF1_RX,
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SHDMA_SLAVE_SCIF2_TX,
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SHDMA_SLAVE_SCIF2_RX,
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SHDMA_SLAVE_SCIF3_TX,
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SHDMA_SLAVE_SCIF3_RX,
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SHDMA_SLAVE_SCIF4_TX,
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SHDMA_SLAVE_SCIF4_RX,
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SHDMA_SLAVE_SCIF5_TX,
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SHDMA_SLAVE_SCIF5_RX,
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SHDMA_SLAVE_SIUA_TX,
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SHDMA_SLAVE_SIUA_RX,
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SHDMA_SLAVE_SIUB_TX,
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SHDMA_SLAVE_SIUB_RX,
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SHDMA_SLAVE_NUMBER, /* Must stay last */
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};
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struct sh_dmae_slave_config {
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enum sh_dmae_slave_chan_id slave_id;
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dma_addr_t addr;
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u32 chcr;
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char mid_rid;
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};
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struct sh_dmae_channel {
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unsigned int offset;
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unsigned int dmars;
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unsigned int dmars_bit;
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};
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struct sh_dmae_pdata {
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struct sh_dmae_slave_config *slave;
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int slave_num;
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struct sh_dmae_channel *channel;
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int channel_num;
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unsigned int ts_low_shift;
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unsigned int ts_low_mask;
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unsigned int ts_high_shift;
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unsigned int ts_high_mask;
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unsigned int *ts_shift;
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int ts_shift_num;
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u16 dmaor_init;
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};
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struct device;
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/* Used by slave DMA clients to request DMA to/from a specific peripheral */
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struct sh_dmae_slave {
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enum sh_dmae_slave_chan_id slave_id; /* Set by the platform */
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struct device *dma_dev; /* Set by the platform */
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struct sh_dmae_slave_config *config; /* Set by the driver */
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};
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#endif
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