linux/include/asm-sh/cpu-sh3/dac.h
Linus Torvalds 1da177e4c3 Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
2005-04-16 15:20:36 -07:00

41 lines
752 B
C

#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 */