diff options
Diffstat (limited to 'arch/m68k/include/asm/mac_baboon.h')
| -rw-r--r-- | arch/m68k/include/asm/mac_baboon.h | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/arch/m68k/include/asm/mac_baboon.h b/arch/m68k/include/asm/mac_baboon.h new file mode 100644 index 000000000..08d9b8829 --- /dev/null +++ b/arch/m68k/include/asm/mac_baboon.h @@ -0,0 +1,39 @@ +/* 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 **/ |