80 строки
1.8 KiB
C
80 строки
1.8 KiB
C
/*
|
|
* 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__ */
|