18c2ecf20Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0 */ 28c2ecf20Sopenharmony_ci/* 38c2ecf20Sopenharmony_ci * OSS 48c2ecf20Sopenharmony_ci * 58c2ecf20Sopenharmony_ci * This is used in place of VIA2 on the IIfx. 68c2ecf20Sopenharmony_ci */ 78c2ecf20Sopenharmony_ci 88c2ecf20Sopenharmony_ci#define OSS_BASE (0x50f1a000) 98c2ecf20Sopenharmony_ci 108c2ecf20Sopenharmony_ci/* 118c2ecf20Sopenharmony_ci * Interrupt level offsets for mac_oss->irq_level 128c2ecf20Sopenharmony_ci */ 138c2ecf20Sopenharmony_ci 148c2ecf20Sopenharmony_ci#define OSS_NUBUS0 0 158c2ecf20Sopenharmony_ci#define OSS_NUBUS1 1 168c2ecf20Sopenharmony_ci#define OSS_NUBUS2 2 178c2ecf20Sopenharmony_ci#define OSS_NUBUS3 3 188c2ecf20Sopenharmony_ci#define OSS_NUBUS4 4 198c2ecf20Sopenharmony_ci#define OSS_NUBUS5 5 208c2ecf20Sopenharmony_ci#define OSS_IOPISM 6 218c2ecf20Sopenharmony_ci#define OSS_IOPSCC 7 228c2ecf20Sopenharmony_ci#define OSS_SOUND 8 238c2ecf20Sopenharmony_ci#define OSS_SCSI 9 248c2ecf20Sopenharmony_ci#define OSS_60HZ 10 258c2ecf20Sopenharmony_ci#define OSS_VIA1 11 268c2ecf20Sopenharmony_ci#define OSS_UNUSED1 12 278c2ecf20Sopenharmony_ci#define OSS_UNUSED2 13 288c2ecf20Sopenharmony_ci#define OSS_PARITY 14 298c2ecf20Sopenharmony_ci#define OSS_UNUSED3 15 308c2ecf20Sopenharmony_ci 318c2ecf20Sopenharmony_ci#define OSS_NUM_SOURCES 16 328c2ecf20Sopenharmony_ci 338c2ecf20Sopenharmony_ci/* 348c2ecf20Sopenharmony_ci * Pending interrupt bits in mac_oss->irq_pending 358c2ecf20Sopenharmony_ci */ 368c2ecf20Sopenharmony_ci 378c2ecf20Sopenharmony_ci#define OSS_IP_NUBUS0 0x0001 388c2ecf20Sopenharmony_ci#define OSS_IP_NUBUS1 0x0002 398c2ecf20Sopenharmony_ci#define OSS_IP_NUBUS2 0x0004 408c2ecf20Sopenharmony_ci#define OSS_IP_NUBUS3 0x0008 418c2ecf20Sopenharmony_ci#define OSS_IP_NUBUS4 0x0010 428c2ecf20Sopenharmony_ci#define OSS_IP_NUBUS5 0x0020 438c2ecf20Sopenharmony_ci#define OSS_IP_IOPISM 0x0040 448c2ecf20Sopenharmony_ci#define OSS_IP_IOPSCC 0x0080 458c2ecf20Sopenharmony_ci#define OSS_IP_SOUND 0x0100 468c2ecf20Sopenharmony_ci#define OSS_IP_SCSI 0x0200 478c2ecf20Sopenharmony_ci#define OSS_IP_60HZ 0x0400 488c2ecf20Sopenharmony_ci#define OSS_IP_VIA1 0x0800 498c2ecf20Sopenharmony_ci#define OSS_IP_UNUSED1 0x1000 508c2ecf20Sopenharmony_ci#define OSS_IP_UNUSED2 0x2000 518c2ecf20Sopenharmony_ci#define OSS_IP_PARITY 0x4000 528c2ecf20Sopenharmony_ci#define OSS_IP_UNUSED3 0x8000 538c2ecf20Sopenharmony_ci 548c2ecf20Sopenharmony_ci#define OSS_IP_NUBUS (OSS_IP_NUBUS0|OSS_IP_NUBUS1|OSS_IP_NUBUS2|OSS_IP_NUBUS3|OSS_IP_NUBUS4|OSS_IP_NUBUS5) 558c2ecf20Sopenharmony_ci 568c2ecf20Sopenharmony_ci/* 578c2ecf20Sopenharmony_ci * Rom Control Register 588c2ecf20Sopenharmony_ci */ 598c2ecf20Sopenharmony_ci 608c2ecf20Sopenharmony_ci#define OSS_POWEROFF 0x80 618c2ecf20Sopenharmony_ci 628c2ecf20Sopenharmony_ci#ifndef __ASSEMBLY__ 638c2ecf20Sopenharmony_ci 648c2ecf20Sopenharmony_cistruct mac_oss { 658c2ecf20Sopenharmony_ci __u8 irq_level[0x10]; /* [0x000-0x00f] Interrupt levels */ 668c2ecf20Sopenharmony_ci __u8 padding0[0x1F2]; /* [0x010-0x201] IO space filler */ 678c2ecf20Sopenharmony_ci __u16 irq_pending; /* [0x202-0x203] pending interrupts bits */ 688c2ecf20Sopenharmony_ci __u8 rom_ctrl; /* [0x204-0x204] ROM cntl reg (for poweroff) */ 698c2ecf20Sopenharmony_ci __u8 padding1[0x2]; /* [0x205-0x206] currently unused by A/UX */ 708c2ecf20Sopenharmony_ci __u8 ack_60hz; /* [0x207-0x207] 60 Hz ack. */ 718c2ecf20Sopenharmony_ci}; 728c2ecf20Sopenharmony_ci 738c2ecf20Sopenharmony_ciextern volatile struct mac_oss *oss; 748c2ecf20Sopenharmony_ciextern int oss_present; 758c2ecf20Sopenharmony_ci 768c2ecf20Sopenharmony_ciextern void oss_register_interrupts(void); 778c2ecf20Sopenharmony_ciextern void oss_irq_enable(int); 788c2ecf20Sopenharmony_ciextern void oss_irq_disable(int); 798c2ecf20Sopenharmony_ci 808c2ecf20Sopenharmony_ci#endif /* __ASSEMBLY__ */ 81