/* SPDX-License-Identifier: GPL-2.0 */ /* * OSS * * This is used in place of VIA2 on the IIfx. */ #define OSS_BASE (0x50f1a000) /* * Interrupt level offsets for mac_oss->irq_level */ #define OSS_NUBUS0 0 #define OSS_NUBUS1 1 #define OSS_NUBUS2 2 #define OSS_NUBUS3 3 #define OSS_NUBUS4 4 #define OSS_NUBUS5 5 #define OSS_IOPISM 6 #define OSS_IOPSCC 7 #define OSS_SOUND 8 #define OSS_SCSI 9 #define OSS_60HZ 10 #define OSS_VIA1 11 #define OSS_UNUSED1 12 #define OSS_UNUSED2 13 #define OSS_PARITY 14 #define OSS_UNUSED3 15 #define OSS_NUM_SOURCES 16 /* * Pending interrupt bits in mac_oss->irq_pending */ #define OSS_IP_NUBUS0 0x0001 #define OSS_IP_NUBUS1 0x0002 #define OSS_IP_NUBUS2 0x0004 #define OSS_IP_NUBUS3 0x0008 #define OSS_IP_NUBUS4 0x0010 #define OSS_IP_NUBUS5 0x0020 #define OSS_IP_IOPISM 0x0040 #define OSS_IP_IOPSCC 0x0080 #define OSS_IP_SOUND 0x0100 #define OSS_IP_SCSI 0x0200 #define OSS_IP_60HZ 0x0400 #define OSS_IP_VIA1 0x0800 #define OSS_IP_UNUSED1 0x1000 #define OSS_IP_UNUSED2 0x2000 #define OSS_IP_PARITY 0x4000 #define OSS_IP_UNUSED3 0x8000 #define OSS_IP_NUBUS (OSS_IP_NUBUS0|OSS_IP_NUBUS1|OSS_IP_NUBUS2|OSS_IP_NUBUS3|OSS_IP_NUBUS4|OSS_IP_NUBUS5) /* * Rom Control Register */ #define OSS_POWEROFF 0x80 #ifndef __ASSEMBLY__ struct mac_oss { __u8 irq_level[0x10]; /* [0x000-0x00f] Interrupt levels */ __u8 padding0[0x1F2]; /* [0x010-0x201] IO space filler */ __u16 irq_pending; /* [0x202-0x203] pending interrupts bits */ __u8 rom_ctrl; /* [0x204-0x204] ROM cntl reg (for poweroff) */ __u8 padding1[0x2]; /* [0x205-0x206] currently unused by A/UX */ __u8 ack_60hz; /* [0x207-0x207] 60 Hz ack. */ }; extern volatile struct mac_oss *oss; extern int oss_present; extern void oss_register_interrupts(void); extern void oss_irq_enable(int); extern void oss_irq_disable(int); #endif /* __ASSEMBLY__ */