dma.c File Reference

#include <sys/dma.h>
#include <sys/io.h>
#include <ubixos/types.h>

Include dependency graph for dma.c:

Go to the source code of this file.

Defines
#define	highByte(x)   ((x & 0xFF00) >> 8)
#define	lowByte(x)   (x & 0x00FF)
Functions
void	_dmaXfer (uInt8 dmaChannel, uInt8 page, uInt offset, uInt length, uInt8 mode)
void	dmaXfer (uInt8 channel, uInt32 address, uInt length, uInt8 read)
Variables
static uInt8	addrPort [8] = { 0x00, 0x02, 0x04, 0x06, 0xC0, 0xC4, 0xC8, 0xCC }
static uInt8	clearReg [8] = { 0x0C, 0x0C, 0x0C, 0x0C, 0xD8, 0xD8, 0xD8, 0xD8 }
static uInt8	countPort [8] = { 0x01, 0x03, 0x05, 0x07, 0xC2, 0xC6, 0xCA, 0xCE }
static uInt8	maskReg [8] = { 0x0A, 0x0A, 0x0A, 0x0A, 0xD4, 0xD4, 0xD4, 0xD4 }
static uInt8	modeReg [8] = { 0x0B, 0x0B, 0x0B, 0x0B, 0xD6, 0xD6, 0xD6, 0xD6 }
static uInt8	pagePort [8] = { 0x87, 0x83, 0x81, 0x82, 0x8F, 0x8B, 0x89, 0x8A }

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Define Documentation

#define highByte

(

x

)

((x & 0xFF00) >> 8)

Definition at line 35 of file dma.c.

Referenced by _dmaXfer().

#define lowByte

(

x

)

(x & 0x00FF)

Definition at line 34 of file dma.c.

Referenced by _dmaXfer().

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Function Documentation

void _dmaXfer	(	uInt8	dmaChannel,
		uInt8	page,
		uInt	offset,
		uInt	length,
		uInt8	mode
	)

Definition at line 59 of file dma.c.

References addrPort, clearReg, countPort, highByte, lowByte, maskReg, modeReg, outportByte(), and pagePort.

Referenced by dmaXfer().

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void dmaXfer	(	uInt8	channel,
		uInt32	address,
		uInt	length,
		uInt8	read
	)

Definition at line 44 of file dma.c.

References _dmaXfer().

Referenced by fdcRw().

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Variable Documentation

uInt8 addrPort[8] = { 0x00, 0x02, 0x04, 0x06, 0xC0, 0xC4, 0xC8, 0xCC } [static]

Definition at line 40 of file dma.c.

Referenced by _dmaXfer().

uInt8 clearReg[8] = { 0x0C, 0x0C, 0x0C, 0x0C, 0xD8, 0xD8, 0xD8, 0xD8 } [static]

Definition at line 38 of file dma.c.

Referenced by _dmaXfer().

uInt8 countPort[8] = { 0x01, 0x03, 0x05, 0x07, 0xC2, 0xC6, 0xCA, 0xCE } [static]

Definition at line 42 of file dma.c.

Referenced by _dmaXfer().

uInt8 maskReg[8] = { 0x0A, 0x0A, 0x0A, 0x0A, 0xD4, 0xD4, 0xD4, 0xD4 } [static]

Definition at line 37 of file dma.c.

Referenced by _dmaXfer().

uInt8 modeReg[8] = { 0x0B, 0x0B, 0x0B, 0x0B, 0xD6, 0xD6, 0xD6, 0xD6 } [static]

Definition at line 39 of file dma.c.

Referenced by _dmaXfer().

uInt8 pagePort[8] = { 0x87, 0x83, 0x81, 0x82, 0x8F, 0x8B, 0x89, 0x8A } [static]

Definition at line 41 of file dma.c.

Referenced by _dmaXfer().

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