arch/m68k/include/asm/mac_asc.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  *      Apple Sound Chip
   4  */
   5
   6 #ifndef __ASM_MAC_ASC_H
   7 #define __ASM_MAC_ASC_H
   8
   9 /*
  10  *      ASC offsets and controls
  11  */
  12
  13 #define ASC_BUF_BASE    0x00    /* RAM buffer offset */
  14 #define ASC_BUF_SIZE    0x800
  15
  16 #define ASC_CONTROL     0x800
  17 #define ASC_CONTROL_OFF         0x00
  18 #define ASC_FREQ(chan,byte)     ((0x810)+((chan)<<3)+(byte))
  19 #define ASC_ENABLE      0x801
  20 #define ASC_ENABLE_SAMPLE       0x02
  21 #define ASC_MODE        0x802
  22 #define ASC_MODE_SAMPLE         0x02
  23
  24 #define ASC_VOLUME      0x806
  25 #define ASC_CHAN        0x807   /* ??? */
  26
  27
  28 #endif