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 **/ 39