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File: [Development] / linux-2.6-xfs / arch / sh / include / cpu-sh3 / cpu / dac.h (download)

Revision 1.1, Fri Oct 3 17:46:45 2008 UTC (9 years ago) by lachlan.longdrop.melbourne.sgi.com
Branch: MAIN
CVS Tags: HEAD 

Merge up to 2.6.27-rc8
Merge of 2.6.x-xfs-melb:linux:32254b by kenmcd.

#ifndef __ASM_CPU_SH3_DAC_H
#define __ASM_CPU_SH3_DAC_H

/*
 * Copyright (C) 2003  Andriy Skulysh
 */


#define DADR0	0xa40000a0
#define DADR1	0xa40000a2
#define DACR	0xa40000a4
#define DACR_DAOE1	0x80
#define DACR_DAOE0	0x40
#define DACR_DAE	0x20


static __inline__ void sh_dac_enable(int channel)
{
	unsigned char v;
	v = ctrl_inb(DACR);
	if(channel) v |= DACR_DAOE1;
	else v |= DACR_DAOE0;
	ctrl_outb(v,DACR);
}

static __inline__ void sh_dac_disable(int channel)
{
	unsigned char v;
	v = ctrl_inb(DACR);
	if(channel) v &= ~DACR_DAOE1;
	else v &= ~DACR_DAOE0;
	ctrl_outb(v,DACR);
}

static __inline__ void sh_dac_output(u8 value, int channel)
{
	if(channel) ctrl_outb(value,DADR1);
	else ctrl_outb(value,DADR0);
}

#endif /* __ASM_CPU_SH3_DAC_H */