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Diffstat (limited to '')
| -rw-r--r-- | arch/sh/include/cpu-sh3/cpu/dac.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/arch/sh/include/cpu-sh3/cpu/dac.h b/arch/sh/include/cpu-sh3/cpu/dac.h new file mode 100644 index 000000000..fd0233160 --- /dev/null +++ b/arch/sh/include/cpu-sh3/cpu/dac.h @@ -0,0 +1,42 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#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 = __raw_readb(DACR); + if(channel) v |= DACR_DAOE1; + else v |= DACR_DAOE0; + __raw_writeb(v,DACR); +} + +static __inline__ void sh_dac_disable(int channel) +{ + unsigned char v; + v = __raw_readb(DACR); + if(channel) v &= ~DACR_DAOE1; + else v &= ~DACR_DAOE0; + __raw_writeb(v,DACR); +} + +static __inline__ void sh_dac_output(u8 value, int channel) +{ + if(channel) __raw_writeb(value,DADR1); + else __raw_writeb(value,DADR0); +} + +#endif /* __ASM_CPU_SH3_DAC_H */ |