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- Prefix 'dma-defines' with DMA_

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- Add function prototypes
This commit is contained in:
leo 1995-04-22 22:18:57 +00:00
parent dcdee517ef
commit 3517d2e5ac
1 changed files with 25 additions and 15 deletions
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40
sys/arch/atari/include/dma.h
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@ -1,4 +1,4 @@
/* $NetBSD: dma.h,v 1.2 1995/03/26 07:24:35 leo Exp $ */
/* $NetBSD: dma.h,v 1.3 1995/04/22 22:18:57 leo Exp $ */
/*
* Copyright (c) 1995 Leo Weppelman.
@ -41,11 +41,11 @@
#define DMA ((struct dma *)AD_DMA)
struct dma {
volatile short dma_gap[2]; /* reserved */
volatile short dma_data; /* controller data path */
volatile short dma_mode; /* mode register */
volatile char dma_addr[6]; /* base address H/M/L */
volatile short dma_drvmode; /* floppy density settings */
volatile short dma_gap[2]; /* reserved */
volatile u_short dma_data; /* controller data path */
volatile u_short dma_mode; /* mode register */
volatile u_char dma_addr[6]; /* base address H/M/L */
volatile u_short dma_drvmode; /* floppy density settings */
};
#define dma_nsec dma_data /* sector count */
@ -54,15 +54,16 @@ struct dma {
/*
* Mode register bits
*/
/* 0x0001 *//* not used */
#define A0 0x0002 /* signal A0 to fdc/hdc */
#define A1 0x0004 /* signal A1 to fdc/hdc */
#define HDC 0x0008 /* must be on if accessing hdc */
#define SCREG 0x0010 /* access sector count register */
/* 0x0020 *//* reserved */
#define NODMA 0x0040 /* no DMA (yet) */
#define FDC 0x0080 /* must be on if accessing fdc */
#define WRBIT 0x0100 /* write to fdc/hdc via dma_data */
/* 0x0001 *//* not used */
#define DMA_A0 0x0002 /* signal A0 to fdc/hdc */
#define DMA_A1 0x0004 /* signal A1 to fdc/hdc */
#define DMA_HDC 0x0008 /* must be on if accessing hdc */
#define DMA_SCREG 0x0010 /* access sector count register */
/* 0x0020 *//* reserved */
#define DMA_NODMA 0x0040 /* no DMA (yet) */
#define DMA_FDC 0x0080 /* must be on if accessing fdc */
#define DMA_WRBIT 0x0100 /* write to fdc/hdc via dma_data*/
#define DMA_SCSI 0x0088 /* select 5380 chip */
/*
* Status register bits
@ -85,4 +86,13 @@ struct dma {
*/
#define FDC_HDSET 1 /* Set FDC for High density */
#define FDC_HDSIG 2 /* Signal HD present to drive */
#ifdef _KERNEL
int st_dmagrab __P((void (*)(), void (*)(), void *, int));
void st_dmafree __P((void));
int st_dmawanted __P((void));
void st_dmaaddr __P((caddr_t));
void st_dmacomm __P((int, int));
#endif /* _KERNEL */
#endif /* _MACHINE_DMA_H */