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/* * Common header for the legacy SH DMA driver and the new dmaengine driver * * extracted from arch/sh/include/asm/dma-sh.h: * * Copyright (C) 2000 Takashi YOSHII * Copyright (C) 2003 Paul Mundt * * This file is subject to the terms and conditions of the GNU General Public * License. See the file "COPYING" in the main directory of this archive * for more details. */ #ifndef DMA_REGISTER_H #define DMA_REGISTER_H /* DMA registers */ #define SAR 0x00 /* Source Address Register */ #define DAR 0x04 /* Destination Address Register */ #define TCR 0x08 /* Transfer Count Register */ #define CHCR 0x0C /* Channel Control Register */ #define DMAOR 0x40 /* DMA Operation Register */ /* DMAOR definitions */ #define DMAOR_AE 0x00000004 /* Address Error Flag */ #define DMAOR_NMIF 0x00000002 #define DMAOR_DME 0x00000001 /* DMA Master Enable */ /* Definitions for the SuperH DMAC */ #define REQ_L 0x00000000 #define REQ_E 0x00080000 #define RACK_H 0x00000000 #define RACK_L 0x00040000 #define ACK_R 0x00000000 #define ACK_W 0x00020000 #define ACK_H 0x00000000 #define ACK_L 0x00010000 #define DM_INC 0x00004000 /* Destination addresses are incremented */ #define DM_DEC 0x00008000 /* Destination addresses are decremented */ #define DM_FIX 0x0000c000 /* Destination address is fixed */ #define SM_INC 0x00001000 /* Source addresses are incremented */ #define SM_DEC 0x00002000 /* Source addresses are decremented */ #define SM_FIX 0x00003000 /* Source address is fixed */ #define RS_IN 0x00000200 #define RS_OUT 0x00000300 #define RS_AUTO 0x00000400 /* Auto Request */ #define RS_ERS 0x00000800 /* DMA extended resource selector */ #define TS_BLK 0x00000040 #define TM_BUR 0x00000020 #define CHCR_DE 0x00000001 /* DMA Enable */ #define CHCR_TE 0x00000002 /* Transfer End Flag */ #define CHCR_IE 0x00000004 /* Interrupt Enable */ #endif