/* 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 __ASSEMBLER__

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 /* __ASSEMBLER__ */