LXR linux/arch/sh/include/cpu-sh3/cpu/dac.h

   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
  18static __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
  27static __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
  36static __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