LXR linux/arch/m68k/include/asm/mac

   1/* SPDX-License-Identifier: GPL-2.0 */
   2/*
   3 * Definitions for the "Baboon" custom IC on the PowerBook 190.
   4 */
   5
   6#define BABOON_BASE (0x50F1A000)        /* same as IDE controller base */
   7
   8#ifndef __ASSEMBLY__
   9
  10struct baboon {
  11        char    pad1[208];      /* generic IDE registers, not used here */
  12        short   mb_control;     /* Control register:
  13                                 * bit 5 : slot 2 power control
  14                                 * bit 6 : slot 1 power control
  15                                 */
  16        char    pad2[2];
  17        short   mb_status;      /* (0xD4) media bay status register:
  18                                 *
  19                                 * bit 0: ????
  20                                 * bit 1: IDE interrupt active?
  21                                 * bit 2: bay status, 0 = full, 1 = empty
  22                                 * bit 3: ????
  23                                 */
  24        char    pad3[2];        /* (0xD6) not used */
  25        short   mb_ifr;         /* (0xD8) media bay interrupt flags register:
  26                                 *
  27                                 * bit 0: ????
  28                                 * bit 1: IDE controller interrupt
  29                                 * bit 2: media bay status change interrupt
  30                                 */
  31};
  32
  33extern int baboon_present;
  34
  35extern void baboon_register_interrupts(void);
  36extern void baboon_irq_enable(int);
  37extern void baboon_irq_disable(int);
  38
  39#endif /* __ASSEMBLY **/
  40