/* SPDX-License-Identifier: GPL-2.0 */ /* * Definitions for the "Baboon" custom IC on the PowerBook 190. */ #define BABOON_BASE (0x50F1A000) /* same as IDE controller base */ #ifndef __ASSEMBLY__ struct baboon { char pad1[208]; /* generic IDE registers, not used here */ short mb_control; /* Control register: * bit 5 : slot 2 power control * bit 6 : slot 1 power control */ char pad2[2]; short mb_status; /* (0xD4) media bay status register: * * bit 0: ???? * bit 1: IDE interrupt active? * bit 2: bay status, 0 = full, 1 = empty * bit 3: ???? */ char pad3[2]; /* (0xD6) not used */ short mb_ifr; /* (0xD8) media bay interrupt flags register: * * bit 0: ???? * bit 1: IDE controller interrupt * bit 2: media bay status change interrupt */ }; extern int baboon_present; extern void baboon_register_interrupts(void); extern void baboon_irq_enable(int); extern void baboon_irq_disable(int); #endif /* __ASSEMBLY **/