arch/m68k/include/asm/mac_baboon.h

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