162306a36Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0 */ 262306a36Sopenharmony_ci/* 362306a36Sopenharmony_ci * OSS 462306a36Sopenharmony_ci * 562306a36Sopenharmony_ci * This is used in place of VIA2 on the IIfx. 662306a36Sopenharmony_ci */ 762306a36Sopenharmony_ci 862306a36Sopenharmony_ci#define OSS_BASE (0x50f1a000) 962306a36Sopenharmony_ci 1062306a36Sopenharmony_ci/* 1162306a36Sopenharmony_ci * Interrupt level offsets for mac_oss->irq_level 1262306a36Sopenharmony_ci */ 1362306a36Sopenharmony_ci 1462306a36Sopenharmony_ci#define OSS_NUBUS0 0 1562306a36Sopenharmony_ci#define OSS_NUBUS1 1 1662306a36Sopenharmony_ci#define OSS_NUBUS2 2 1762306a36Sopenharmony_ci#define OSS_NUBUS3 3 1862306a36Sopenharmony_ci#define OSS_NUBUS4 4 1962306a36Sopenharmony_ci#define OSS_NUBUS5 5 2062306a36Sopenharmony_ci#define OSS_IOPISM 6 2162306a36Sopenharmony_ci#define OSS_IOPSCC 7 2262306a36Sopenharmony_ci#define OSS_SOUND 8 2362306a36Sopenharmony_ci#define OSS_SCSI 9 2462306a36Sopenharmony_ci#define OSS_60HZ 10 2562306a36Sopenharmony_ci#define OSS_VIA1 11 2662306a36Sopenharmony_ci#define OSS_UNUSED1 12 2762306a36Sopenharmony_ci#define OSS_UNUSED2 13 2862306a36Sopenharmony_ci#define OSS_PARITY 14 2962306a36Sopenharmony_ci#define OSS_UNUSED3 15 3062306a36Sopenharmony_ci 3162306a36Sopenharmony_ci#define OSS_NUM_SOURCES 16 3262306a36Sopenharmony_ci 3362306a36Sopenharmony_ci/* 3462306a36Sopenharmony_ci * Pending interrupt bits in mac_oss->irq_pending 3562306a36Sopenharmony_ci */ 3662306a36Sopenharmony_ci 3762306a36Sopenharmony_ci#define OSS_IP_NUBUS0 0x0001 3862306a36Sopenharmony_ci#define OSS_IP_NUBUS1 0x0002 3962306a36Sopenharmony_ci#define OSS_IP_NUBUS2 0x0004 4062306a36Sopenharmony_ci#define OSS_IP_NUBUS3 0x0008 4162306a36Sopenharmony_ci#define OSS_IP_NUBUS4 0x0010 4262306a36Sopenharmony_ci#define OSS_IP_NUBUS5 0x0020 4362306a36Sopenharmony_ci#define OSS_IP_IOPISM 0x0040 4462306a36Sopenharmony_ci#define OSS_IP_IOPSCC 0x0080 4562306a36Sopenharmony_ci#define OSS_IP_SOUND 0x0100 4662306a36Sopenharmony_ci#define OSS_IP_SCSI 0x0200 4762306a36Sopenharmony_ci#define OSS_IP_60HZ 0x0400 4862306a36Sopenharmony_ci#define OSS_IP_VIA1 0x0800 4962306a36Sopenharmony_ci#define OSS_IP_UNUSED1 0x1000 5062306a36Sopenharmony_ci#define OSS_IP_UNUSED2 0x2000 5162306a36Sopenharmony_ci#define OSS_IP_PARITY 0x4000 5262306a36Sopenharmony_ci#define OSS_IP_UNUSED3 0x8000 5362306a36Sopenharmony_ci 5462306a36Sopenharmony_ci#define OSS_IP_NUBUS (OSS_IP_NUBUS0|OSS_IP_NUBUS1|OSS_IP_NUBUS2|OSS_IP_NUBUS3|OSS_IP_NUBUS4|OSS_IP_NUBUS5) 5562306a36Sopenharmony_ci 5662306a36Sopenharmony_ci/* 5762306a36Sopenharmony_ci * Rom Control Register 5862306a36Sopenharmony_ci */ 5962306a36Sopenharmony_ci 6062306a36Sopenharmony_ci#define OSS_POWEROFF 0x80 6162306a36Sopenharmony_ci 6262306a36Sopenharmony_ci#ifndef __ASSEMBLY__ 6362306a36Sopenharmony_ci 6462306a36Sopenharmony_cistruct mac_oss { 6562306a36Sopenharmony_ci __u8 irq_level[0x10]; /* [0x000-0x00f] Interrupt levels */ 6662306a36Sopenharmony_ci __u8 padding0[0x1F2]; /* [0x010-0x201] IO space filler */ 6762306a36Sopenharmony_ci __u16 irq_pending; /* [0x202-0x203] pending interrupts bits */ 6862306a36Sopenharmony_ci __u8 rom_ctrl; /* [0x204-0x204] ROM cntl reg (for poweroff) */ 6962306a36Sopenharmony_ci __u8 padding1[0x2]; /* [0x205-0x206] currently unused by A/UX */ 7062306a36Sopenharmony_ci __u8 ack_60hz; /* [0x207-0x207] 60 Hz ack. */ 7162306a36Sopenharmony_ci}; 7262306a36Sopenharmony_ci 7362306a36Sopenharmony_ciextern volatile struct mac_oss *oss; 7462306a36Sopenharmony_ciextern int oss_present; 7562306a36Sopenharmony_ci 7662306a36Sopenharmony_ciextern void oss_register_interrupts(void); 7762306a36Sopenharmony_ciextern void oss_irq_enable(int); 7862306a36Sopenharmony_ciextern void oss_irq_disable(int); 7962306a36Sopenharmony_ci 8062306a36Sopenharmony_ci#endif /* __ASSEMBLY__ */ 81