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
  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
  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
  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 */