| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * arch/sh/drivers/dma/dma-sh.h |
| 3 | * |
| 4 | * Copyright (C) 2000 Takashi YOSHII |
| 5 | * Copyright (C) 2003 Paul Mundt |
| 6 | * |
| 7 | * This file is subject to the terms and conditions of the GNU General Public |
| 8 | * License. See the file "COPYING" in the main directory of this archive |
| 9 | * for more details. |
| 10 | */ |
| 11 | #ifndef __DMA_SH_H |
| 12 | #define __DMA_SH_H |
| 13 | |
| 14 | /* Definitions for the SuperH DMAC */ |
| 15 | #define REQ_L 0x00000000 |
| 16 | #define REQ_E 0x00080000 |
| 17 | #define RACK_H 0x00000000 |
| 18 | #define RACK_L 0x00040000 |
| 19 | #define ACK_R 0x00000000 |
| 20 | #define ACK_W 0x00020000 |
| 21 | #define ACK_H 0x00000000 |
| 22 | #define ACK_L 0x00010000 |
| 23 | #define DM_INC 0x00004000 |
| 24 | #define DM_DEC 0x00008000 |
| 25 | #define SM_INC 0x00001000 |
| 26 | #define SM_DEC 0x00002000 |
| 27 | #define RS_IN 0x00000200 |
| 28 | #define RS_OUT 0x00000300 |
| 29 | #define TM_BURST 0x0000080 |
| 30 | #define TS_8 0x00000010 |
| 31 | #define TS_16 0x00000020 |
| 32 | #define TS_32 0x00000030 |
| 33 | #define TS_64 0x00000000 |
| 34 | #define TS_BLK 0x00000040 |
| 35 | #define CHCR_DE 0x00000001 |
| 36 | #define CHCR_TE 0x00000002 |
| 37 | #define CHCR_IE 0x00000004 |
| 38 | |
| 39 | /* Define the default configuration for dual address memory-memory transfer. |
| 40 | * The 0x400 value represents auto-request, external->external. |
| 41 | */ |
| 42 | #define RS_DUAL (DM_INC | SM_INC | 0x400 | TS_32) |
| 43 | |
| 44 | #define DMAOR_COD 0x00000008 |
| 45 | #define DMAOR_AE 0x00000004 |
| 46 | #define DMAOR_NMIF 0x00000002 |
| 47 | #define DMAOR_DME 0x00000001 |
| 48 | |
| 49 | #define MAX_DMAC_CHANNELS (CONFIG_NR_ONCHIP_DMA_CHANNELS) |
| 50 | |
| 51 | #endif /* __DMA_SH_H */ |
| 52 | |