xref: /openbmc/linux/arch/sh/include/cpu-sh3/cpu/dac.h (revision b2441318)
1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __ASM_CPU_SH3_DAC_H
3 #define __ASM_CPU_SH3_DAC_H
4 
5 /*
6  * Copyright (C) 2003  Andriy Skulysh
7  */
8 
9 
10 #define DADR0	0xa40000a0
11 #define DADR1	0xa40000a2
12 #define DACR	0xa40000a4
13 #define DACR_DAOE1	0x80
14 #define DACR_DAOE0	0x40
15 #define DACR_DAE	0x20
16 
17 
sh_dac_enable(int channel)18 static __inline__ void sh_dac_enable(int channel)
19 {
20 	unsigned char v;
21 	v = __raw_readb(DACR);
22 	if(channel) v |= DACR_DAOE1;
23 	else v |= DACR_DAOE0;
24 	__raw_writeb(v,DACR);
25 }
26 
sh_dac_disable(int channel)27 static __inline__ void sh_dac_disable(int channel)
28 {
29 	unsigned char v;
30 	v = __raw_readb(DACR);
31 	if(channel) v &= ~DACR_DAOE1;
32 	else v &= ~DACR_DAOE0;
33 	__raw_writeb(v,DACR);
34 }
35 
sh_dac_output(u8 value,int channel)36 static __inline__ void sh_dac_output(u8 value, int channel)
37 {
38 	if(channel) __raw_writeb(value,DADR1);
39 	else __raw_writeb(value,DADR0);
40 }
41 
42 #endif /* __ASM_CPU_SH3_DAC_H */
43