Merge tag 'split-asm_system_h-for-linus-20120328' of git://git.kernel.org/pub/scm...
[linux-2.6.git] / arch / sh / include / cpu-sh3 / cpu / dac.h
1 #ifndef __ASM_CPU_SH3_DAC_H
2 #define __ASM_CPU_SH3_DAC_H
3
4 /*
5  * Copyright (C) 2003  Andriy Skulysh
6  */
7
8
9 #define DADR0   0xa40000a0
10 #define DADR1   0xa40000a2
11 #define DACR    0xa40000a4
12 #define DACR_DAOE1      0x80
13 #define DACR_DAOE0      0x40
14 #define DACR_DAE        0x20
15
16
17 static __inline__ void sh_dac_enable(int channel)
18 {
19         unsigned char v;
20         v = __raw_readb(DACR);
21         if(channel) v |= DACR_DAOE1;
22         else v |= DACR_DAOE0;
23         __raw_writeb(v,DACR);
24 }
25
26 static __inline__ void sh_dac_disable(int channel)
27 {
28         unsigned char v;
29         v = __raw_readb(DACR);
30         if(channel) v &= ~DACR_DAOE1;
31         else v &= ~DACR_DAOE0;
32         __raw_writeb(v,DACR);
33 }
34
35 static __inline__ void sh_dac_output(u8 value, int channel)
36 {
37         if(channel) __raw_writeb(value,DADR1);
38         else __raw_writeb(value,DADR0);
39 }
40
41 #endif /* __ASM_CPU_SH3_DAC_H */