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