40 lines
880 B
C
40 lines
880 B
C
#ifndef __ASM_SH_CPU_SH4_DMA_SH7780_H
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#define __ASM_SH_CPU_SH4_DMA_SH7780_H
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#define REQ_HE 0x000000C0
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#define REQ_H 0x00000080
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#define REQ_LE 0x00000040
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#define TM_BURST 0x0000020
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#define TS_8 0x00000000
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#define TS_16 0x00000008
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#define TS_32 0x00000010
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#define TS_16BLK 0x00000018
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#define TS_32BLK 0x00100000
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/*
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* The SuperH DMAC supports a number of transmit sizes, we list them here,
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* with their respective values as they appear in the CHCR registers.
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*
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* Defaults to a 64-bit transfer size.
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*/
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enum {
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XMIT_SZ_8BIT,
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XMIT_SZ_16BIT,
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XMIT_SZ_32BIT,
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XMIT_SZ_128BIT,
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XMIT_SZ_256BIT,
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};
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/*
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* The DMA count is defined as the number of bytes to transfer.
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*/
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static unsigned int ts_shift[] __maybe_unused = {
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[XMIT_SZ_8BIT] = 0,
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[XMIT_SZ_16BIT] = 1,
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[XMIT_SZ_32BIT] = 2,
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[XMIT_SZ_128BIT] = 4,
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[XMIT_SZ_256BIT] = 5,
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};
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#endif /* __ASM_SH_CPU_SH4_DMA_SH7780_H */
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