162306a36Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0 */
262306a36Sopenharmony_ci/*
362306a36Sopenharmony_ci * Definitions for the "Baboon" custom IC on the PowerBook 190.
462306a36Sopenharmony_ci */
562306a36Sopenharmony_ci
662306a36Sopenharmony_ci#define BABOON_BASE (0x50F1A000)	/* same as IDE controller base */
762306a36Sopenharmony_ci
862306a36Sopenharmony_ci#ifndef __ASSEMBLY__
962306a36Sopenharmony_ci
1062306a36Sopenharmony_cistruct baboon {
1162306a36Sopenharmony_ci	char	pad1[208];	/* generic IDE registers, not used here */
1262306a36Sopenharmony_ci	short	mb_control;	/* Control register:
1362306a36Sopenharmony_ci				 * bit 5 : slot 2 power control
1462306a36Sopenharmony_ci				 * bit 6 : slot 1 power control
1562306a36Sopenharmony_ci				 */
1662306a36Sopenharmony_ci	char	pad2[2];
1762306a36Sopenharmony_ci	short	mb_status;	/* (0xD4) media bay status register:
1862306a36Sopenharmony_ci				 *
1962306a36Sopenharmony_ci				 * bit 0: ????
2062306a36Sopenharmony_ci				 * bit 1: IDE interrupt active?
2162306a36Sopenharmony_ci				 * bit 2: bay status, 0 = full, 1 = empty
2262306a36Sopenharmony_ci				 * bit 3: ????
2362306a36Sopenharmony_ci				 */
2462306a36Sopenharmony_ci	char	pad3[2];	/* (0xD6) not used */
2562306a36Sopenharmony_ci	short	mb_ifr;		/* (0xD8) media bay interrupt flags register:
2662306a36Sopenharmony_ci				 *
2762306a36Sopenharmony_ci				 * bit 0: ????
2862306a36Sopenharmony_ci				 * bit 1: IDE controller interrupt
2962306a36Sopenharmony_ci				 * bit 2: media bay status change interrupt
3062306a36Sopenharmony_ci				 */
3162306a36Sopenharmony_ci};
3262306a36Sopenharmony_ci
3362306a36Sopenharmony_ciextern int baboon_present;
3462306a36Sopenharmony_ci
3562306a36Sopenharmony_ciextern void baboon_register_interrupts(void);
3662306a36Sopenharmony_ciextern void baboon_irq_enable(int);
3762306a36Sopenharmony_ciextern void baboon_irq_disable(int);
3862306a36Sopenharmony_ci
3962306a36Sopenharmony_ci#endif /* __ASSEMBLY **/
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