diff options
Diffstat (limited to 'sys/arch/sparc/dev/dmareg.h')
| -rw-r--r-- | sys/arch/sparc/dev/dmareg.h | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/sys/arch/sparc/dev/dmareg.h b/sys/arch/sparc/dev/dmareg.h index 3998581845a..c9e575a262f 100644 --- a/sys/arch/sparc/dev/dmareg.h +++ b/sys/arch/sparc/dev/dmareg.h @@ -1,4 +1,5 @@ -/* $NetBSD: dmareg.h,v 1.8 1996/04/22 02:34:58 abrown Exp $ */ +/* $OpenBSD: dmareg.h,v 1.4 1997/08/08 08:24:58 downsj Exp $ */ +/* $NetBSD: dmareg.h,v 1.10 1996/11/28 09:37:34 pk Exp $ */ /* * Copyright (c) 1994 Peter Galbavy. All rights reserved. @@ -38,19 +39,21 @@ struct dma_regs { #define D_INT_EN 0x00000010 /* interrupt enable */ #define D_INVALIDATE 0x00000020 /* invalidate fifo */ #define D_SLAVE_ERR 0x00000040 /* slave access size error */ -#define D_DRAIN 0x00000040 /* drain fifo if DMAREV_1 */ +#define D_DRAIN 0x00000040 /* rev0,1,esc: drain fifo */ #define D_RESET 0x00000080 /* reset scsi */ #define D_WRITE 0x00000100 /* 1 = dev -> mem */ #define D_EN_DMA 0x00000200 /* enable DMA requests */ -#define D_R_PEND 0x00000400 /* something only on ver < 2 */ +#define D_R_PEND 0x00000400 /* rev0,1: request pending */ +#define D_ESC_BURST 0x00000800 /* DMA ESC: 16 byte bursts */ #define D_EN_CNT 0x00002000 /* enable byte counter */ #define D_TC 0x00004000 /* terminal count */ #define D_DSBL_CSR_DRN 0x00010000 /* disable fifo drain on csr */ #define D_DSBL_SCSI_DRN 0x00020000 /* disable fifo drain on reg */ #define D_BURST_SIZE 0x000c0000 /* sbus read/write burst size */ #define D_BURST_0 0x00080000 /* no bursts (SCSI-only) */ -#define D_BURST_16 0x00040000 /* 16-byte bursts */ -#define D_BURST_32 0x00000000 /* 32-byte bursts */ +#define D_BURST_16 0x00000000 /* 16-byte bursts */ +#define D_BURST_32 0x00040000 /* 32-byte bursts */ +#define D_AUTODRAIN 0x00040000 /* DMA ESC: Auto-drain */ #define D_DIAG 0x00100000 /* disable fifo drain on addr */ #define D_TWO_CYCLE 0x00200000 /* 2 clocks per transfer */ #define D_FASTER 0x00400000 /* 3 clocks per transfer */ @@ -62,6 +65,7 @@ struct dma_regs { #define D_NA_LOADED 0x08000000 /* next address loaded */ #define D_DEV_ID 0xf0000000 /* device ID */ #define DMAREV_0 0x00000000 /* Sunray DMA */ +#define DMAREV_ESC 0x40000000 /* DMA ESC array */ #define DMAREV_1 0x80000000 /* 'DMA' */ #define DMAREV_PLUS 0x90000000 /* 'DMA+' */ #define DMAREV_2 0xa0000000 /* 'DMA2' */ |